1. CPC Sections
  2. CPC Section H
  3. CPC Class H02
  4. CPC Subclass H02K
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CPC
COOPERATIVE PATENT CLASSIFICATION
​​
H02K
DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H 53/00; conversion of DC or AC input power into surge output power {H03K 3/53}) [2022-01]
NOTES

  • This subclass covers the structural adaptation of dynamo-electric machines for the purpose of their control.
  • This subclass does not cover starting, regulating, electronically commutating, braking, or otherwise controlling motors, generators or dynamo-electric converters, in general, which is covered by subclass H02P.
  • Attention is drawn to the Notes following the titles of class B81 and subclass B81B relating to "microstructural devices" and "microstructural systems".
  • Group H02K 16/00 takes precedence over groups H02K 17/00 - H02K 53/00.
    {This Note corresponds to IPC Note (1) relating to H02K 17/00 - H02K 53/00.}
  • {In this subclass, it is desirable to add the indexing codes of H02K 2201/00-H02K 2213/12.}
WARNING

  • In this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme.
H02K 1/00
Details of the magnetic circuit (magnetic circuits for relays H01H 50/16) [2021-01]
H02K 1/02
.
characterised by the magnetic material [2013-01]
H02K 1/04
.
characterised by the material used for insulating the magnetic circuit or parts thereof [2021-01]
H02K 1/06
.
characterised by the shape, form or construction [2016-11]
H02K 1/08
. .
Salient poles [2013-01]
H02K 1/10
. . .
Commutating poles [2013-01]
H02K 1/12
. .
Stationary parts of the magnetic circuit [2013-01]
H02K 1/14
. . .
Stator cores with salient poles [2013-01]
H02K 1/141
. . . .
{consisting of C-shaped cores} [2013-01]
H02K 1/143
. . . . .
{of the horse-shoe type} [2013-01]
H02K 1/145
. . . .
{having an annular coil, e.g. of the claw-pole type} [2013-01]
H02K 1/146
. . . .
{consisting of a generally annular yoke with salient poles} [2013-01]
H02K 1/148
. . . . .
{Sectional cores (H02K 1/141 takes precedence)} [2013-01]
H02K 1/16
. . .
Stator cores with slots for windings [2013-01]
H02K 1/165
. . . .
{Shape, form or location of the slots} [2013-01]
H02K 1/17
. . .
Stator cores with permanent magnets [2013-01]
H02K 1/18
. . .
Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures [2013-01]
H02K 1/182
. . . .
{to stators axially facing the rotor, i.e. with axial or conical air gap} [2013-01]
H02K 1/185
. . . .
{to outer stators} [2013-01]
H02K 1/187
. . . .
{to inner stators} [2013-01]
H02K 1/20
. . .
with channels or ducts for flow of cooling medium [2013-01]
H02K 1/22
. .
Rotating parts of the magnetic circuit [2016-11]
H02K 1/223
. . .
{Rotor cores with windings and permanent magnets (for additional excitation in synchronous motors or generators H02K 21/042; in synchronous motors having additional short-circuited winding for starting as an asynchronous motor H02K 21/46)} [2013-01]
H02K 1/24
. . .
Rotor cores with salient poles {; Variable reluctance rotors} [2017-08]
H02K 1/243
. . . .
{of the claw-pole type} [2013-01]
H02K 1/246
. . . .
{Variable reluctance rotors} [2013-01]
H02K 1/26
. . .
Rotor cores with slots for windings [2013-01]
H02K 1/265
. . . .
{Shape, form or location of the slots} [2013-01]
H02K 1/27
. . .
Rotor cores with permanent magnets [2021-01]
H02K 1/2706
. . . .
Inner rotors [2022-01]
H02K 1/2713
. . . . .
the magnetisation axis of the magnets being axial, e.g. claw-pole type [2022-01]
H02K 1/272
. . . . .
the magnetisation axis of the magnets being perpendicular to the rotor axis [2022-01]
H02K 1/2726
. . . . . .
the rotor consisting of a single magnet or two or more axially juxtaposed single magnets [2022-01]
H02K 1/2733
. . . . . . .
Annular magnets [2022-01]
H02K 1/274
. . . . . .
the rotor consisting of two or more circumferentially positioned magnets [2022-01]
H02K 1/2746
. . . . . . .
the rotor consisting of magnets arranged with the same polarity, e.g. consequent pole type [2022-01]
H02K 1/2753
. . . . . . .
the rotor consisting of magnets or groups of magnets arranged with alternating polarity [2022-01]
H02K 1/276
. . . . . . . .
Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] [2022-01]
H02K 1/2766
. . . . . . . . .
{having a flux concentration effect} [2022-01]
H02K 1/2773
. . . . . . . . . .
{consisting of tangentially magnetized radial magnets} [2022-01]
H02K 1/278
. . . . . . . .
Surface mounted magnets; Inset magnets [2024-01]
H02K 1/2781
. . . . . . . . .
Magnets shaped to vary the mechanical air gap between the magnets and the stator [2024-01]
H02K 1/2783
. . . . . . . . .
with magnets arranged in Halbach arrays [2024-01]
H02K 1/2786
. . . .
Outer rotors [2024-01]
H02K 1/2787
. . . . .
the magnetisation axis of the magnets being perpendicular to the rotor axis [2024-01]
H02K 1/2788
. . . . . .
the rotor consisting of a single magnet or two or more axially juxtaposed single magnets [2022-01]
H02K 1/2789
. . . . . .
the rotor consisting of two or more circumferentially positioned magnets [2022-01]
H02K 1/279
. . . . . . .
Magnets embedded in the magnetic core [2022-01]
H02K 1/2791
. . . . . . .
Surface mounted magnets; Inset magnets [2022-01]
H02K 1/27915
. . . . . . . .
Magnets shaped to vary the mechanical air gap between the magnets and the stator [2022-01]
H02K 1/2792
. . . . . . . .
with magnets arranged in Halbach arrays [2022-01]
H02K 1/2793
. . . .
Rotors axially facing stators [2024-01]
H02K 1/2795
. . . . .
the rotor consisting of two or more circumferentially positioned magnets [2024-01]
H02K 1/2796
. . . . . .
where both axial sides of the rotor face a stator [2022-01]
H02K 1/2798
. . . . . .
where both axial sides of the stator face a rotor [2022-01]
H02K 1/28
. . .
Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures [2013-01]
H02K 1/30
. . . .
using intermediate parts, e.g. spiders [2016-11]
H02K 1/32
. . .
with channels or ducts for flow of cooling medium [2013-01]
H02K 1/325
. . . .
{between salient poles} [2013-01]
H02K 1/34
. .
Reciprocating, oscillating or vibrating parts of the magnetic circuit [2016-11]
H02K 3/00
Details of windings [2021-01]
H02K 3/02
.
Windings characterised by the conductor material [2021-01]
H02K 3/04
.
Windings characterised by the conductor shape, form or construction, e.g. with bar conductors [2016-11]
H02K 3/12
. .
arranged in slots [2013-01]
H02K 3/14
. . .
with transposed conductors, e.g. twisted conductors [2016-11]
H02K 3/16
. . .
for auxiliary purposes, e.g. damping or commutating [2016-11]
H02K 3/18
. .
Windings for salient poles [2013-01]
H02K 3/20
. . .
for auxiliary purposes, e.g. damping or commutating [2016-11]
H02K 3/22
. .
consisting of hollow conductors [2013-01]
H02K 3/24
. .
with channels or ducts for cooling medium between the conductors [2016-11]
H02K 3/26
. .
consisting of printed conductors [2013-01]
H02K 3/28
. .
Layout of windings or of connections between windings (windings for pole-changing H02K 17/06, H02K 17/14, H02K 19/12, H02K 19/32) [2013-01]
H02K 3/30
.
Windings characterised by the insulating material [2021-01]
H02K 3/32
.
Windings characterised by the shape, form or construction of the insulation [2021-01]
H02K 3/325
. .
{for windings on salient poles, such as claw-shaped poles} [2013-01]
H02K 3/34
. .
between conductors or between conductor and core, e.g. slot insulation [2013-01]
H02K 3/345
. . .
{between conductor and core, e.g. slot insulation} [2013-01]
H02K 3/38
. .
around winding heads, equalising connectors, or connections thereto [2013-01]
H02K 3/40
. .
for high voltage, e.g. affording protection against corona discharges [2016-11]
H02K 3/42
.
Means for preventing or reducing eddy-current losses in the winding heads, e.g. by shielding [2013-01]
H02K 3/44
.
Protection against moisture or chemical attack; Windings specially adapted for operation in liquid or gas [2013-01]
H02K 3/46
.
Fastening of windings on the stator or rotor structure [2016-11]
H02K 3/47
. .
Air-gap windings, i.e. iron-free windings [2013-01]
H02K 3/48
. .
in slots [2013-01]
H02K 3/487
. . .
Slot-closing devices [2013-01]
H02K 3/493
. . . .
magnetic [2016-11]
H02K 3/50
. .
Fastening of winding heads, equalising connectors, or connections thereto [2021-01]
H02K 3/505
. . .
{for large machine windings, e.g. bar windings (H02K 3/51 takes precedence)} [2013-01]
H02K 3/51
. . .
applicable to rotors only [2013-01]
H02K 3/52
. .
Fastening salient pole windings or connections thereto [2013-01]
H02K 3/521
. . .
{applicable to stators only} [2013-01]
H02K 3/522
. . . .
{for generally annular cores with salient poles} [2013-01]
H02K 3/524
. . . .
{for U-shaped, E-shaped or similarly shaped cores} [2013-01]
H02K 3/525
. . . .
{Annular coils, e.g. for cores of the claw-pole type} [2013-01]
H02K 3/527
. . .
{applicable to rotors only} [2013-01]
H02K 3/528
. . . .
{of the claw-pole type} [2013-01]
H02K 5/00
Casings; Enclosures; Supports [2016-11]
H02K 5/02
.
Casings or enclosures characterised by the material thereof [2013-01]
H02K 5/04
.
Casings or enclosures characterised by the shape, form or construction thereof [2013-01]
H02K 5/06
. .
Cast metal casings [2013-01]
H02K 5/08
. .
Insulating casings [2013-01]
H02K 5/10
. .
with arrangements for protection from ingress, e.g. water or fingers [2021-01]
H02K 5/12
. .
specially adapted for operating in liquid or gas (combined with cooling arrangements H02K 9/00) [2013-01]
H02K 5/124
. . .
Sealing of shafts [2016-11]
H02K 5/128
. . .
using air-gap sleeves or air-gap discs [2016-11]
H02K 5/1282
. . . .
{the partition wall in the air-gap being non cylindrical} [2013-01]
H02K 5/1285
. . . .
{of the submersible type} [2013-01]
H02K 5/132
. . .
Submersible electric motors (H02K 5/128 takes precedence) [2016-11]
H02K 5/136
. . .
explosion-proof [2013-01]
H02K 5/14
. .
Means for supporting or protecting brushes or brush holders [2013-01]
H02K 5/141
. . .
{for cooperation with slip-rings} [2013-01]
H02K 5/143
. . .
{for cooperation with commutators} [2013-01]
H02K 5/145
. . . .
{Fixedly supported brushes or brush holders, e.g. leaf or leaf-mounted brushes} [2013-01]
H02K 5/146
. . . .
{Pivotally supported brushes or brush holders} [2013-01]
H02K 5/148
. . . .
{Slidably supported brushes} [2013-01]
H02K 5/15
. .
Mounting arrangements for bearing-shields or end plates [2013-01]
H02K 5/16
. .
Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields (magnetic bearings H02K 7/09) [2016-11]
H02K 5/161
. . .
{radially supporting the rotary shaft at both ends of the rotor (H02K 5/165, H02K 5/167, H02K 5/173 take precedence)} [2013-01]
H02K 5/163
. . .
{radially supporting the rotary shaft at only one end of the rotor (H02K 5/165, H02K 5/167, H02K 5/173 take precedence)} [2013-01]
H02K 5/165
. . .
{radially supporting the rotor around a fixed spindle; radially supporting the rotor directly (H02K 5/167, H02K 5/173 take precedence)} [2013-01]
H02K 5/167
. . .
using sliding-contact or spherical cap bearings [2013-01]
H02K 5/1672
. . . .
{radially supporting the rotary shaft at both ends of the rotor (H02K 5/1677 takes precedence)} [2013-01]
H02K 5/1675
. . . .
{radially supporting the rotary shaft at only one end of the rotor (H02K 5/1677 takes precedence)} [2013-01]
H02K 5/1677
. . . .
{radially supporting the rotor around a fixed spindle; radially supporting the rotor directly} [2013-01]
H02K 5/173
. . .
using bearings with rolling contact, e.g. ball bearings [2016-11]
H02K 5/1732
. . . .
{radially supporting the rotary shaft at both ends of the rotor (H02K 5/1737 takes precedence)} [2013-01]
H02K 5/1735
. . . .
{radially supporting the rotary shaft at only one end of the rotor (H02K 5/1737 takes precedence)} [2013-01]
H02K 5/1737
. . . .
{radially supporting the rotor around a fixed spindle; radially supporting the rotor directly} [2013-01]
H02K 5/18
. .
with ribs or fins for improving heat transfer [2013-01]
H02K 5/20
. .
with channels or ducts for flow of cooling medium [2023-05]
H02K 5/203
. . .
{specially adapted for liquids, e.g. cooling jackets} [2023-05]
H02K 5/207
. . .
{with openings in the casing specially adapted for ambient air} [2023-05]
H02K 5/22
. .
Auxiliary parts of casings not covered by groups H02K 5/06-H02K 5/20, e.g. shaped to form connection boxes or terminal boxes [2016-11]
H02K 5/225
. . .
{Terminal boxes or connection arrangements (specially adapted for submersible motors H02K 5/132)} [2013-01]
H02K 5/24
.
specially adapted for suppression or reduction of noise or vibrations [2021-01]
H02K 5/26
.
Means for adjusting casings relative to their supports [2016-11]
H02K 7/00
Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines [2016-11]
H02K 7/003
.
{Couplings; Details of shafts (means for mounting rotors on shafts H02K 1/28)} [2013-01]
H02K 7/006
.
{Structural association of a motor or generator with the drive train of a motor vehicle} [2013-01]
H02K 7/02
.
Additional mass for increasing inertia, e.g. flywheels [2016-11]
H02K 7/025
. .
{for power storage} [2013-01]
H02K 7/04
.
Balancing means [2013-01]
H02K 7/06
.
Means for converting reciprocating motion into rotary motion or vice versa [2016-11]
H02K 7/061
. .
{using rotary unbalanced masses (for generating mechanical vibrations in general B06B 1/16)} [2013-01]
H02K 7/063
. . .
{integrally combined with motor parts, e.g. motors with eccentric rotors} [2013-01]
H02K 7/065
. .
Electromechanical oscillators; Vibrating magnetic drives [2021-01]
H02K 7/07
. .
using pawls and ratchet wheels [2016-11]
H02K 7/075
. .
using crankshafts or eccentrics [2016-11]
H02K 7/08
.
Structural association with bearings [2020-08]
H02K 7/081
. .
{specially adapted for worm gear drives (H02K 7/09 takes precedence)} [2013-01]
H02K 7/083
. .
{radially supporting the rotary shaft at both ends of the rotor (H02K 7/086, H02K 7/09 take precedence)} [2013-01]
H02K 7/085
. .
{radially supporting the rotary shaft at only one end of the rotor (H02K 7/086, H02K 7/09 take precedence)} [2013-01]
H02K 7/086
. .
{radially supporting the rotor around a fixed spindle; radially supporting the rotor directly (H02K 7/09 takes precedence)} [2013-01]
H02K 7/088
. . .
{radially supporting the rotor directly} [2013-01]
H02K 7/09
. .
with magnetic bearings [2013-01]
​
H02K 7/10
.
Structural association with clutches, brakes, gears, pulleys or mechanical starters [2022-01]
NOTE

H02K 7/1004
. .
{with pulleys} [2013-01]
H02K 7/1008
. . .
{structurally associated with the machine rotor (H02K 7/1012 takes precedence)} [2013-01]
H02K 7/1012
. . .
{Machine arranged inside the pulley} [2013-01]
H02K 7/1016
. . . .
{Machine of the outer rotor type} [2013-01]
H02K 7/102
. .
with friction brakes [2013-01]
H02K 7/1021
. . .
{Magnetically influenced friction brakes} [2013-01]
H02K 7/1023
. . . .
{using electromagnets} [2013-01]
H02K 7/1025
. . . . .
{using axial electromagnets with generally annular air gap} [2013-01]
H02K 7/1026
. . . .
{using stray fields} [2013-01]
H02K 7/1028
. . . . .
{axially attracting the brake armature in the frontal area of the magnetic core} [2013-01]
H02K 7/104
. .
with eddy-current brakes [2013-01]
H02K 7/106
. .
with dynamo-electric brakes [2013-01]
H02K 7/108
. .
with friction clutches [2013-01]
H02K 7/1085
. . .
{Magnetically influenced friction clutches} [2013-01]
H02K 7/11
. .
with dynamo-electric clutches [2013-01]
H02K 7/112
. .
with friction clutches in combination with brakes [2016-11]
H02K 7/1125
. . .
{Magnetically influenced friction clutches and brakes} [2013-01]
H02K 7/114
. .
with dynamo-electric clutches in combination with brakes [2016-11]
H02K 7/116
. .
with gears [2013-01]
H02K 7/1163
. . .
{where at least two gears have non-parallel axes without having orbital motion} [2013-01]
H02K 7/1166
. . . .
{comprising worm and worm-wheel (structural association with bearings specially adapted for worm gear drives H02K 7/081)} [2013-01]
H02K 7/118
. .
with starting devices [2016-11]
H02K 7/1185
. . .
{with a mechanical one-way direction control, i.e. with means for reversing the direction of rotation of the rotor} [2013-01]
H02K 7/12
. .
with auxiliary limited movement of stators, rotors or core parts, e.g. rotors axially movable for the purpose of clutching or braking [2016-11]
H02K 7/125
. . .
{magnetically influenced} [2013-01]
H02K 7/14
.
Structural association with mechanical loads, e.g. with hand-held machine tools or fans (with fan or impeller for cooling the machine H02K 9/06) [2021-01]
H02K 7/145
. .
{Hand-held machine tool} [2013-01]
H02K 7/16
. .
for operation above the critical speed of vibration of the rotating parts [2016-11]
H02K 7/18
.
Structural association of electric generators with mechanical driving motors, e.g. with turbines [2021-01]
H02K 7/1807
. .
{Rotary generators (H02K 7/006 takes precedence)} [2013-01]
H02K 7/1815
. . .
{structurally associated with reciprocating piston engines (general aspects of generating sets, e.g. housing, F02B 63/04)} [2013-01]
H02K 7/1823
. . .
{structurally associated with turbines or similar engines} [2013-01]
H02K 7/183
. . . .
{wherein the turbine is a wind turbine (adaptation of a wind turbine to an electric generator F03D 9/25)} [2017-02]
H02K 7/1838
. . . . .
{Generators mounted in a nacelle or similar structure of a horizontal axis wind turbine} [2013-01]
H02K 7/1846
. . .
{structurally associated with wheels or associated parts (dynamos arranged in the wheel hub of cycles B62J 6/12)} [2013-01]
H02K 7/1853
. . .
{driven by intermittent forces} [2013-01]
H02K 7/1861
. . .
{driven by animals or vehicles (H02K 7/1853 takes precedence)} [2013-01]
H02K 7/1869
. .
{Linear generators; sectional generators} [2013-01]
H02K 7/1876
. . .
{with reciprocating, linearly oscillating or vibrating parts} [2013-01]
H02K 7/1884
. . . .
{structurally associated with free piston engines} [2013-01]
H02K 7/1892
. .
{Generators with parts oscillating or vibrating about an axis} [2013-01]
H02K 7/20
.
Structural association with auxiliary dynamo-electric machines, e.g. with electric starter motors or exciters [2021-01]
H02K 9/00
Arrangements for cooling or ventilating (channels or ducts in parts of the magnetic circuit H02K 1/20, H02K 1/32; channels or ducts in or between conductors H02K 3/22, H02K 3/24) [2016-11]
H02K 9/02
.
by ambient air flowing through the machine [2013-01]
H02K 9/04
. .
having means for generating a flow of cooling medium [2016-11]
H02K 9/06
. . .
with fans or impellers driven by the machine shaft [2016-11]
H02K 9/08
.
by gaseous cooling medium circulating wholly within the machine casing (H02K 9/10 takes precedence) [2013-01]
H02K 9/10
.
by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing [2013-01]
H02K 9/12
. .
wherein the cooling medium circulates freely within the casing [2013-01]
H02K 9/14
.
wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle [2013-01]
H02K 9/16
. .
wherein the cooling medium circulates through ducts or tubes within the casing [2013-01]
H02K 9/18
. .
wherein the external part of the closed circuit comprises a heat exchanger structurally associated with the machine casing [2013-01]
H02K 9/19
.
for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil [2023-08]
H02K 9/193
. .
with provision for replenishing the cooling medium; with means for preventing leakage of the cooling medium [2013-01]
H02K 9/197
. .
in which the rotor or stator space is fluid-tight, e.g. to provide for different cooling media for rotor and stator [2023-08]
H02K 9/20
. .
wherein the cooling medium vaporises within the machine casing [2023-05]
H02K 9/22
.
by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges [2023-05]
H02K 9/223
. .
{Heat bridges} [2023-05]
H02K 9/225
. .
{Heat pipes} [2023-05]
H02K 9/227
. .
{Heat sinks} [2023-05]
H02K 9/24
.
Protection against failure of cooling arrangements, e.g. due to loss of cooling medium or due to interruption of the circulation of cooling medium [2021-01]
H02K 9/26
.
Structural association of machines with devices for cleaning or drying cooling medium, e.g. with filters [2016-11]
H02K 9/28
.
Cooling of commutators, slip-rings or brushes e.g. by ventilating [2021-01]
H02K 11/00
Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection (casings, enclosures or supports H02K 5/00) [2016-01]
H02K 11/0094
.
{Structural association with other electrical or electronic devices} [2013-01]
H02K 11/01
.
for shielding from electromagnetic fields {, i.e. structural association with shields} (means for preventing or reducing eddy-current losses in the winding heads by shielding H02K 3/42) [2022-02]
H02K 11/012
. .
{Shields associated with rotating parts, e.g. rotor cores or rotary shafts} [2022-02]
H02K 11/014
. .
{Shields associated with stationary parts, e.g. stator cores} [2022-02]
H02K 11/0141
. . .
{Shields associated with casings, enclosures or brackets} [2022-02]
H02K 11/02
.
for suppression of electromagnetic interference [2016-01]
H02K 11/026
. .
Suppressors associated with brushes, brush holders or their supports [2020-05]
H02K 11/028
. .
Suppressors associated with the rotor [2020-05]
H02K 11/04
.
for rectification [2020-05]
H02K 11/042
. .
Rectifiers associated with rotating parts, e.g. rotor cores or rotary shafts [2016-01]
H02K 11/049
. .
Rectifiers associated with stationary parts, e.g. stator cores [2023-08]
H02K 11/05
. . .
Rectifiers associated with casings, enclosures or brackets [2020-05]
H02K 11/20
.
for measuring, monitoring, testing, protecting or switching (rectifiers H02K 11/04; power electronics H02K 11/33) [2016-01]
H02K 11/21
. .
Devices for sensing speed or position, or actuated thereby (specially adapted for machines having non-mechanical commutating devices H02K 29/06, H02K 29/14) [2016-01]
H02K 11/215
. . .
Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements [2016-01]
H02K 11/22
. . .
Optical devices [2016-01]
H02K 11/225
. . .
Detecting coils [2016-01]
H02K 11/23
. . .
Mechanically-actuated centrifugal switches [2016-01]
H02K 11/24
. .
Devices for sensing torque, or actuated thereby (H02K 11/27 takes precedence) [2016-01]
H02K 11/25
. .
Devices for sensing temperature, or actuated thereby [2016-01]
H02K 11/26
. .
Devices for sensing voltage, or actuated thereby, e.g. overvoltage protection devices [2016-01]
H02K 11/27
. .
Devices for sensing current, or actuated thereby (overcurrent protection responsive to temperature of the machines or parts thereof, e.g. windings, H02K 11/25) [2016-01]
H02K 11/28
. .
Manual switches [2016-01]
H02K 11/30
.
Structural association with control circuits or drive circuits [2016-01]
H02K 11/33
. .
Drive circuits, e.g. power electronics (H02K 11/38 takes precedence) [2016-01]
H02K 11/35
. .
Devices for recording or transmitting machine parameters, e.g. memory chips or radio transmitters for diagnosis [2016-01]
H02K 11/38
. .
Control circuits or drive circuits associated with geared commutator motors of the worm-and-wheel type [2016-01]
H02K 11/40
.
Structural association with grounding devices [2016-01]
H02K 13/00
Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings (supporting or protecting brushes or brush holders in motor casings or enclosures H02K 5/14); Disposition of current collectors in motors or generators; Arrangements for improving commutation [2016-11]
H02K 13/003
.
{Structural associations of slip-rings} [2013-01]
H02K 13/006
.
{Structural associations of commutators} [2013-01]
H02K 13/02
.
Connections between slip-rings and windings [2016-11]
H02K 13/04
.
Connections between commutator segments and windings [2016-11]
H02K 13/06
. .
Resistive connections, e.g. by high-resistance chokes or by transistors [2016-11]
H02K 13/08
. .
Segments formed by extensions of the winding [2016-11]
H02K 13/10
.
Arrangements of brushes or commutators specially adapted for improving commutation [2016-11]
H02K 13/105
. .
{Spark suppressors associated with the commutator} [2013-01]
H02K 13/12
.
Arrangements for producing an axial reciprocation of the rotor and its associated current collector part, e.g. for polishing commutator surfaces [2016-11]
H02K 13/14
.
Circuit arrangements for improvement of commutation, e.g. by use of unidirectionally conductive elements [2016-11]
​
H02K 15/00
Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines [2025-01]
WARNING

​
H02K 15/02
.
of stator or rotor bodies [2025-01]
WARNING

​
H02K 15/021
. .
Magnetic cores [2025-01]
WARNING

​
H02K 15/022
. . .
with salient poles [2025-01]
WARNING

​
H02K 15/0225
. . . .
with claw-shaped poles [2025-01]
WARNING

H02K 15/023
. . .
Cage rotors [2025-01]
H02K 15/025
. . .
characterised by skewed structures in cores [2025-01]
​
H02K 15/026
. . .
Wound cores [2025-01]
WARNING

​
H02K 15/027
. . .
Punching the cores [2025-01]
WARNING

​
H02K 15/0273
. . .
Laminating the cores [2025-01]
WARNING

​
H02K 15/0275
. . .
Annealing the cores [2025-01]
WARNING

​
H02K 15/0278
. . .
Welding the cores [2025-01]
WARNING

​
H02K 15/028
. .
Fastening stator or rotor bodies to casings, supports, shafts or hubs [2025-01]
WARNING

​
H02K 15/03
. .
having permanent magnets [2025-01]
WARNING

​
H02K 15/035
. . .
on the rotor [2025-01]
WARNING

​
H02K 15/038
. . .
Polarising or magnetising the permanent magnets [2025-01]
WARNING

​
H02K 15/04
.
of windings prior to their mounting into the machines (insulating windings H02K 15/10, H02K 15/12) [2025-01]
WARNING

H02K 15/0407
. .
Manufacturing of windings by etching, printing or stamping the complete coils [2025-01]
H02K 15/0414
. .
the windings consisting of separate elements, e.g. bars, segments or half coils [2025-01]
H02K 15/0421
. . .
and consisting of single conductors, e.g. hairpins [2025-01]
H02K 15/0428
. . . .
Processes or apparatus for simultaneously twisting two or more hairpins [2025-01]
​
H02K 15/043
. .
winding flat conductive wires or sheets [2025-01]
WARNING

​
H02K 15/0431
. . .
{Concentrated windings} [2025-01]
WARNING

​
H02K 15/0432
. . .
{Distributed windings} [2025-01]
WARNING

​
H02K 15/0433
. . . .
{of the wave winding type} [2025-01]
WARNING

​
H02K 15/0434
. . . . .
{manufactured by shaping an annular winding} [2025-01]
WARNING

​
H02K 15/044
. .
winding non-flat conductive wires, e.g. cables or cords [2025-01]
WARNING

​
H02K 15/046
. . .
Concentrated windings [2025-01]
WARNING

​
H02K 15/047
. . .
Distributed windings [2025-01]
WARNING

​
H02K 15/048
. . . .
of the wave winding type [2025-01]
WARNING

​
H02K 15/0485
. . . . .
{manufactured by shaping an annular winding} [2025-01]
WARNING

H02K 15/06
.
Embedding prefabricated windings in the machines [2025-01]
H02K 15/061
. .
Air-gap windings [2025-01]
H02K 15/062
. .
Windings in slots; Salient pole windings [2025-01]
​
H02K 15/063
(Frozen)
. . .
{Windings for large electric machines, e.g. bar windings (windings consisting of cables H02K 15/065)} [2025-01]
WARNING

​
H02K 15/064
. . .
Windings consisting of separate segments [2025-01]
WARNING

​
H02K 15/0643
. . . .
Hairpin windings [2025-01]
WARNING

​
H02K 15/0646
. . . .
Bar windings consisting of pre-assembled multiple conductors, e.g. Roebel bars [2025-01]
WARNING

​
H02K 15/065
. . .
Windings consisting of complete sections, e.g. coils or waves [2025-01]
WARNING

H02K 15/066
. . . .
inserted perpendicularly to the axis of the slots or inter-polar channels [2025-01]
H02K 15/067
. . . .
inserted in parallel to the axis of the slots or inter-polar channels [2025-01]
H02K 15/068
. . . . .
Strippers; Embedding windings by strippers [2025-01]
H02K 15/08
.
Forming windings by laying conductors into or around core parts [2016-11]
H02K 15/085
. .
by laying conductors into slotted stators [2013-01]
H02K 15/09
. .
by laying conductors into slotted rotors [2013-01]
H02K 15/095
. .
by laying conductors around salient poles [2013-01]
​
H02K 15/10
.
Applying solid insulation to windings, stators or rotors, e.g. applying insulating tapes [2025-01]
WARNING

​
H02K 15/104
. .
Insulating between conductors [2025-01]
WARNING

​
H02K 15/105
(Frozen)
. .
{to the windings} [2025-01]
WARNING

  • Group H02K 15/105 is no longer used for the classification of documents as of January 1, 2025.
    The content of this group is being reclassified into groups H02K 15/10, H02K 15/104, H02K 15/106 and H02K 15/108.
    All groups listed in this Warning should be considered in order to perform a complete search.
​
H02K 15/106
. .
Insulating between conductors and cores [2025-01]
WARNING

  • Group H02K 15/106 is incomplete pending reclassification of documents from groups H02K 15/10 and H02K 15/105.
    All groups listed in this Warning should be considered in order to perform a complete search.
​
H02K 15/108
. .
with slot liners [2025-01]
WARNING

  • Group H02K 15/108 is incomplete pending reclassification of documents from groups H02K 15/10 and H02K 15/105.
    All groups listed in this Warning should be considered in order to perform a complete search.
​
H02K 15/12
.
Impregnating, moulding insulation, heating or drying of windings, stators, rotors or machines [2025-01]
WARNING

​
H02K 15/121
. .
of cores [2025-01]
WARNING

​
H02K 15/122
. .
of windings [2025-01]
WARNING

​
H02K 15/123
. .
of casings or enclosures [2025-01]
WARNING

H02K 15/125
. .
Heating or drying of machines in operational state, e.g. standstill heating [2025-01]
H02K 15/13
.
Applying slot closure means in the cores; Manufacture of slot closure means [2025-01]
​
H02K 15/14
.
Casings; Enclosures; Supports [2025-01]
WARNING

​
H02K 15/142
. .
by moulding [2025-01]
WARNING

​
H02K 15/144
. .
of shafts, bearings or supports therefor [2025-01]
WARNING

​
H02K 15/146
. .
of brush holders [2025-01]
WARNING

​
H02K 15/148
. .
Insulating casings or enclosures (H02K 15/123 takes precedence) [2025-01]
WARNING

H02K 15/16
.
Centring rotors within the stators [2025-01]
H02K 15/165
. .
Balancing the rotors [2025-01]
H02K 15/20
.
Shaping or compacting conductors or winding heads after the installation of the winding in the cores or machines; Applying fastening means on winding heads [2025-01]
H02K 15/22
. .
Shaping or compacting conductors in slots or around salient poles (H02K 15/28 takes precedence) [2025-01]
H02K 15/24
. .
Shaping or compacting winding heads (H02K 15/0428, H02K 15/28, H02K 15/36 take precedence) [2025-01]
H02K 15/26
. . .
Applying fastening means on winding heads [2025-01]
H02K 15/28
. .
using electrodynamic forces [2025-01]
​
H02K 15/30
.
Manufacture of winding connections [2025-01]
WARNING

H02K 15/32
. .
Manufacture of terminal arrangements; Connecting the terminals to external circuits [2025-01]
​
H02K 15/33
. .
Connecting winding sections; Forming leads; Connecting leads to terminals [2025-01]
WARNING

​
H02K 15/34
. . .
Connecting the neutral point [2025-01]
WARNING

H02K 15/35
. . .
Form-wound windings [2025-01]
H02K 15/36
. . . .
Processes or apparatus for simultaneously twisting two or more open ends of hairpins after their insertion into the machine (for simultaneously twisting two or more hairpins prior to mounting into the machine H02K 15/0428) [2025-01]
H02K 15/38
. . . .
Manufacturing or repairing cooling fluid boxes, e.g. ensuring both electrical and fluid connection of terminals of fluid cooled windings [2025-01]
​
H02K 15/40
.
Assembling dynamo-electric machines (H02K 15/16 takes precedence) [2025-01]
WARNING

​
H02K 15/50
.
Disassembling, repairing or modifying dynamo-electric machines (repairing of cooling fluid boxes H02K 15/38) [2025-01]
WARNING

​
H02K 15/60
.
Hoisting or moving dynamo-electric machines [2025-01]
WARNING

​
H02K 15/70
.
Cleaning dynamo-electric machines [2025-01]
WARNING

​
H02K 15/80
.
Manufacturing lines specially adapted for dynamo-electrical machines, e.g. feeding or unloading [2025-01]
WARNING

​
H02K 15/90
.
Positioning or clamping dynamo-electric machines, e.g. jigs [2025-01]
WARNING

​
H02K 15/95
.
Installation of current collectors, e.g. commutators, slip-rings or brushes [2025-01]
WARNING

H02K 16/00
Machines with more than one rotor or stator {(machines for transmitting mechanical power from a driving shaft to a driven shaft and comprising structurally interrelated motor and generator parts H02K 51/00; permanent magnet machines with multiple rotors or stators relatively rotated for vectorially combining the excitation fields or the armature voltages H02K 21/029)} [2013-01]
H02K 16/005
.
{Machines with only rotors, e.g. counter-rotating rotors (DC commutator machines or universal AC/DC commutator motors having a rotating armature and a rotating excitation field H02K 23/60)} [2013-01]
H02K 16/02
.
Machines with one stator and two {or more} rotors [2013-01]
H02K 16/025
. .
{with rotors and moving stators connected in a cascade (cascade arrangement of an asynchronous motor with another dynamo-electric motor or converter H02K 17/34)} [2013-01]
H02K 16/04
.
Machines with one rotor and two stators [2021-01]
H02K 17/00
Asynchronous induction motors; Asynchronous induction generators [2013-01]
H02K 17/02
.
Asynchronous induction motors [2013-01]
H02K 17/04
. .
for single phase current [2013-01]
H02K 17/06
. . .
having windings arranged for permitting pole-changing [2013-01]
H02K 17/08
. . .
Motors with auxiliary phase obtained by externally fed auxiliary windings, e.g. capacitor motors [2016-11]
H02K 17/10
. . .
Motors with auxiliary phase obtained by split-pole carrying short-circuited windings [2016-11]
H02K 17/12
. .
for multi-phase current [2013-01]
H02K 17/14
. . .
having windings arranged for permitting pole-changing [2013-01]
H02K 17/16
. .
having rotors with internally short-circuited windings, e.g. cage rotors [2025-01]
H02K 17/168
. . .
{having single-cage rotors} [2023-05]
H02K 17/18
. . .
having double-cage or multiple-cage rotors [2016-11]
H02K 17/20
. . .
having deep-bar rotors [2016-11]
H02K 17/22
. .
having rotors with windings connected to slip-rings [2016-11]
H02K 17/24
. . .
in which both stator and rotor are fed with AC [2016-11]
H02K 17/26
. .
having rotors or stators designed to permit synchronous operation [2016-11]
H02K 17/28
. .
having compensating winding for improving phase angle [2013-01]
H02K 17/30
. .
Structural association of asynchronous induction motors with auxiliary electric devices influencing the characteristics of the motor or controlling the motor, e.g. with impedances or switches [2016-11]
H02K 17/32
. .
Structural association of asynchronous induction motors with auxiliary mechanical devices, e.g. with clutches or brakes [2016-11]
H02K 17/34
. .
Cascade arrangement of an asynchronous motor with another dynamo-electric motor or converter [2021-01]
H02K 17/36
. . .
with another asynchronous induction motor [2013-01]
H02K 17/38
. . .
with a commutator machine [2013-01]
H02K 17/40
. . .
with a rotary AC/DC converter [2016-11]
H02K 17/42
.
Asynchronous induction generators (H02K 17/02 takes precedence) [2013-01]
H02K 17/44
. .
Structural association with exciting machines [2016-11]
H02K 19/00
Synchronous motors or generators (having permanent magnets H02K 21/00) [2016-11]
H02K 19/02
.
Synchronous motors [2013-01]
H02K 19/04
. .
for single-phase current [2013-01]
H02K 19/06
. . .
Motors having windings on the stator and a variable-reluctance soft-iron rotor without windings, e.g. inductor motors [2017-08]
H02K 19/08
. . .
Motors having windings on the stator and a smooth rotor without windings of material with large hysteresis, e.g. hysteresis motors [2016-11]
H02K 19/10
. .
for multi-phase current [2013-01]
H02K 19/103
. . .
{Motors having windings on the stator and a variable reluctance soft-iron rotor without windings} [2013-01]
H02K 19/106
. . .
{Motors having windings in the stator and a smooth rotor of material with large hysteresis without windings} [2013-01]
H02K 19/12
. . .
characterised by the arrangement of exciting windings, e.g. for self-excitation, compounding or pole-changing [2016-11]
H02K 19/14
. .
having additional short-circuited windings for starting as asynchronous motors [2016-11]
H02K 19/16
.
Synchronous generators [2013-01]
H02K 19/18
. .
having windings each turn of which co-operates only with poles of one polarity, e.g. homopolar generators [2016-11]
H02K 19/20
. . .
with variable-reluctance soft-iron rotors without winding [2016-11]
H02K 19/22
. .
having windings each turn of which co-operates alternately with poles of opposite polarity, e.g. heteropolar generators [2016-11]
H02K 19/24
. . .
with variable-reluctance soft-iron rotors without winding [2016-11]
H02K 19/26
. .
characterised by the arrangement of exciting windings [2016-11]
H02K 19/28
. . .
for self-excitation [2013-01]
H02K 19/30
. . .
for compounding [2013-01]
H02K 19/32
. . .
for pole-changing [2013-01]
H02K 19/34
. .
Generators with two or more outputs [2013-01]
H02K 19/36
. .
Structural association of synchronous generators with auxiliary electric devices influencing the characteristic of the generator or controlling the generator, e.g. with impedances or switches [2016-11]
H02K 19/365
. . .
{with a voltage regulator} [2013-01]
H02K 19/38
. .
Structural association of synchronous generators with exciting machines [2016-11]
H02K 21/00
Synchronous motors having permanent magnets; Synchronous generators having permanent magnets [2016-11]
H02K 21/02
.
Details [2013-01]
H02K 21/021
. .
{Means for mechanical adjustment of the excitation flux} [2013-01]
H02K 21/022
. . .
{by modifying the relative position between field and armature, e.g. between rotor and stator (vectorial combination of field or armature sections H02K 21/029)} [2013-01]
H02K 21/023
. . . .
{by varying the amount of superposition, i.e. the overlap, of field and armature} [2013-01]
H02K 21/024
. . . . .
{Radial air gap machines} [2013-01]
H02K 21/025
. . . .
{by varying the thickness of the air gap between field and armature} [2013-01]
H02K 21/026
. . . . .
{Axial air gap machines} [2013-01]
H02K 21/027
. . . . .
{Conical air gap machines} [2013-01]
H02K 21/028
. . .
{by modifying the magnetic circuit within the field or the armature, e.g. by using shunts, by adjusting the magnets position, by vectorial combination of field or armature sections} [2013-01]
H02K 21/029
. . . .
{Vectorial combination of the fluxes generated by a plurality of field sections or of the voltages induced in a plurality of armature sections} [2013-01]
H02K 21/04
. .
Windings on magnets for additional excitation {; Windings and magnets for additional excitation} [2016-11]
H02K 21/042
. . .
{with permanent magnets and field winding both rotating} [2013-01]
H02K 21/044
. . . .
{Rotor of the claw pole type} [2013-01]
H02K 21/046
. . .
{with rotating permanent magnets and stationary field winding} [2013-01]
H02K 21/048
. . . .
{Rotor of the claw pole type} [2013-01]
H02K 21/10
. .
Rotating armatures [2013-01]
H02K 21/12
.
with stationary armatures and rotating magnets [2016-11]
H02K 21/125
. .
{having an annular armature coil (H02K 21/14 - H02K 21/24 take precedence)} [2016-05]
H02K 21/14
. .
with magnets rotating within the armatures [2016-11]
H02K 21/145
. . .
{having an annular armature coil (with homopolar co-operation H02K 21/20)} [2013-01]
H02K 21/16
. . .
having annular armature cores with salient poles (with homopolar co-operation H02K 21/20) [2016-11]
H02K 21/18
. . .
having horse-shoe armature cores (with homopolar co-operation H02K 21/20) [2016-11]
H02K 21/185
. . . .
{with the axis of the rotor perpendicular to the plane of the armature} [2013-01]
H02K 21/20
. . .
having windings each turn of which co-operates only with poles of one polarity, e.g. homopolar machine [2013-01]
H02K 21/22
. .
with magnets rotating around the armatures, e.g. flywheel magnetos [2016-11]
H02K 21/222
. . .
{Flywheel magnetos} [2013-01]
H02K 21/225
. . . .
{having I-shaped, E-shaped or similarly shaped armature cores} [2013-01]
H02K 21/227
. . .
{having an annular armature coil} [2013-01]
H02K 21/24
. .
with magnets axially facing the armatures, e.g. hub-type cycle dynamos [2016-11]
H02K 21/26
.
with rotating armatures and stationary magnets [2016-11]
H02K 21/28
. .
with armatures rotating within the magnets [2016-11]
H02K 21/30
. . .
having annular armature cores with salient poles (with homopolar co-operation H02K 21/36) [2016-11]
H02K 21/32
. . .
having horse-shoe magnets (with homopolar co-operation H02K 21/36) [2016-11]
H02K 21/325
. . . .
{with the axis of the rotating armature perpendicular to the plane of the magnet} [2013-01]
H02K 21/34
. . .
having bell-shaped or bar-shaped magnets, e.g. for cycle lighting (with homopolar co-operation H02K 21/36) [2016-11]
H02K 21/36
. . .
with homopolar co-operation [2013-01]
H02K 21/38
.
with rotating flux distributors, and armatures and magnets both stationary [2016-11]
H02K 21/40
. .
with flux distributors rotating around the magnets and within the armatures [2016-11]
H02K 21/42
. .
with flux distributors rotating around the armatures and within the magnets [2016-11]
H02K 21/44
. .
with armature windings wound upon the magnets [2016-11]
H02K 21/46
.
Motors having additional short-circuited winding for starting as an asynchronous motor [2013-01]
H02K 21/48
.
Generators with two or more outputs [2013-01]
H02K 23/00
DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors [2016-11]
H02K 23/02
.
characterised by arrangement for exciting [2016-11]
H02K 23/023
. .
{having short-circuited brushes} [2013-01]
H02K 23/026
. .
{having an unregular distribution of the exciting winding or of the excitation over the poles} [2013-01]
H02K 23/04
. .
having permanent magnet excitation [2013-01]
H02K 23/06
. .
having shunt connection of excitation windings [2013-01]
H02K 23/08
. .
having series connection of excitation windings [2013-01]
H02K 23/10
. .
having compound connection of excitation windings [2013-01]
H02K 23/12
. .
having excitation produced by current sources independent of the armature circuit [2016-11]
H02K 23/14
. .
having high-speed excitation or de-excitation, e.g. by neutralising the remanent excitation field [2013-01]
H02K 23/16
. .
having angularly adjustable excitation field, e.g. by pole reversing or pole switching [2016-11]
H02K 23/18
. .
having displaceable main or auxiliary brushes [2013-01]
H02K 23/20
. .
having additional brushes spaced intermediately of the main brushes on the commutator, e.g. cross-field machines, metadynes, amplidynes or other armature-reaction excited machines [2016-11]
H02K 23/22
. .
having compensating or damping windings [2016-11]
H02K 23/24
. .
having commutating-pole windings [2016-11]
H02K 23/26
.
characterised by the armature windings [2016-11]
H02K 23/28
. .
having open windings, i.e. not closed within the armatures [2016-11]
H02K 23/30
. .
having lap or loop windings [2021-01]
H02K 23/32
. .
having wave or undulating windings [2021-01]
H02K 23/34
. .
having mixed windings [2013-01]
H02K 23/36
. .
having two or more windings; having two or more commutators; having two or more stators [2016-11]
H02K 23/38
. .
having winding or connection for improving commutation, e.g. equipotential connection [2013-01]
H02K 23/40
.
characterised by the arrangement of the magnet circuits [2016-11]
H02K 23/405
. .
{Machines with a special form of the pole shoes} [2013-01]
H02K 23/42
. .
having split poles, i.e. zones for varying reluctance by gaps in poles or by poles with different spacing of the air gap [2013-01]
H02K 23/44
. .
having movable, e.g. turnable, iron parts [2016-11]
H02K 23/46
. .
having stationary shunts, i.e. magnetic cross flux [2013-01]
H02K 23/48
. .
having adjustable armatures [2016-11]
H02K 23/50
.
Generators with two or more outputs [2013-01]
H02K 23/52
.
Motors acting also as generators, e.g. starting motors used as generators for ignition or lighting [2016-11]
H02K 23/54
.
Disc armature motors or generators [2013-01]
H02K 23/56
.
Motors or generators having iron cores separated from armature winding [2016-11]
H02K 23/58
.
Motors or generators without iron cores [2016-11]
H02K 23/60
.
Motors or generators having rotating armatures and rotating excitation field [2016-11]
H02K 23/62
.
Motors or generators with stationary armatures and rotating excitation field [2016-11]
H02K 23/64
.
Motors specially adapted for running on DC or AC by choice [2016-11]
H02K 23/66
.
Structural association with auxiliary electric devices influencing the characteristic of, or controlling, the machine, e.g. with impedances or switches [2021-01]
H02K 23/68
.
Structural association with auxiliary mechanical devices, e.g. with clutches or brakes [2021-01]
H02K 24/00
Machines adapted for the instantaneous transmission or reception of the angular displacement of rotating parts, e.g. synchro, selsyn [2013-01]
H02K 25/00
DC interrupter motors or generators [2016-11]
H02K 26/00
Machines adapted to function as torque motors, i.e. to exert a torque when stalled [2013-01]
H02K 27/00
AC commutator motors or generators having mechanical commutator [2016-11]
H02K 27/02
.
characterised by the armature winding [2013-01]
H02K 27/04
.
having single-phase operation in series or shunt connection [2013-01]
H02K 27/06
. .
with a single or multiple short-circuited commutator, e.g. repulsion motor [2013-01]
H02K 27/08
. .
with multiple-fed armature [2013-01]
H02K 27/10
. .
with switching devices for different modes of operation, e.g. repulsion-induction motor [2013-01]
H02K 27/12
.
having multi-phase operation [2013-01]
H02K 27/14
. .
in series connection [2013-01]
H02K 27/16
. .
in shunt connection with stator feeding [2013-01]
H02K 27/18
. .
in shunt connection with rotor feeding [2013-01]
H02K 27/20
.
Structural association with a speed regulating device [2013-01]
H02K 27/22
.
having means for improving commutation, e.g. auxiliary fields, double windings, double brushes [2013-01]
H02K 27/24
.
having two or more commutators [2013-01]
H02K 27/26
.
having disc armature [2013-01]
H02K 27/28
.
Structural association with auxiliary electric devices influencing the characteristic of the machine or controlling the machine [2016-11]
H02K 27/30
.
Structural association with auxiliary mechanical devices, e.g. with clutches or brakes [2021-01]
H02K 29/00
Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices [2016-11]
H02K 29/03
.
with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems [2013-01]
H02K 29/06
.
with position sensing devices (H02K 29/03 takes precedence) [2021-01]
H02K 29/08
. .
using magnetic effect devices, e.g. Hall-plates, magneto-resistors (H02K 29/12 takes precedence) [2013-01]
H02K 29/10
. .
using light effect devices [2013-01]
H02K 29/12
. .
using detecting coils {using the machine windings as detecting coil} [2013-01]
H02K 29/14
.
with speed sensing devices (H02K 29/03 takes precedence) [2021-01]
H02K 31/00
Acyclic motors or generators, i.e. DC machines having drum or disc armatures with continuous current collectors [2016-11]
H02K 31/02
.
with solid-contact collectors [2013-01]
H02K 31/04
.
with at least one liquid-contact collector [2013-01]
H02K 33/00
Motors with reciprocating, oscillating or vibrating magnet, armature or coil system (arrangements for handling mechanical energy structurally associated with motors H02K 7/00, e.g. H02K 7/06) [2016-11]
H02K 33/02
.
with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs [2016-11]
H02K 33/04
. .
wherein the frequency of operation is determined by the frequency of uninterrupted AC energisation [2016-11]
H02K 33/06
. . .
with polarised armatures [2016-11]
H02K 33/08
. . .
with DC energisation superimposed on AC energisation [2016-11]
H02K 33/10
. .
wherein the alternate energisation and de-energisation of the single coil system is effected or controlled by movement of the armatures [2016-11]
H02K 33/12
.
with armatures moving in alternate directions by alternate energisation of two coil systems [2016-11]
H02K 33/14
. .
wherein the alternate energisation and de-energisation of the two coil systems are effected or controlled by movement of the armatures [2016-11]
H02K 33/16
.
with polarised armatures moving in alternate directions by reversal or energisation of a single coil system [2016-11]
H02K 33/18
.
with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets [2016-11]
H02K 35/00
Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit (arrangements for handling mechanical energy structurally associated with generators H02K 7/00, e.g. H02K 7/06) [2016-11]
H02K 35/02
.
with moving magnets and stationary coil systems [2016-11]
H02K 35/04
.
with moving coil systems and stationary magnets [2016-11]
H02K 35/06
.
with moving flux distributors, and both coil systems and magnets stationary [2016-11]
H02K 37/00
Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors [2013-01]
H02K 37/02
.
of variable reluctance type [2016-11]
H02K 37/04
. .
with rotors situated within the stators [2016-11]
H02K 37/06
. .
with rotors situated around the stators [2016-11]
H02K 37/08
. .
with rotors axially facing the stators [2016-11]
H02K 37/10
.
of permanent magnet type (H02K 37/02 takes precedence) [2016-11]
H02K 37/12
. .
with stationary armatures and rotating magnets [2016-11]
H02K 37/125
. . .
{Magnet axially facing armature} [2013-01]
H02K 37/14
. . .
with magnets rotating within the armatures [2016-11]
H02K 37/16
. . . .
having horseshoe armature cores [2016-11]
H02K 37/18
. . . .
of homopolar type [2016-11]
H02K 37/20
. .
with rotating flux distributors, the armatures and magnets both being stationary [2016-11]
H02K 37/22
.
Damping units [2013-01]
H02K 37/24
.
Structural association with auxiliary mechanical devices [2013-01]
H02K 39/00
Generators specially adapted for producing a desired non-sinusoidal waveform [2013-01]
H02K 41/00
Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path {(electromagnetic launchers F41B 6/00)} [2013-01]
H02K 41/02
.
Linear motors; Sectional motors [2013-01]
H02K 41/025
. .
Asynchronous motors [2013-01]
H02K 41/03
. .
Synchronous motors; Motors moving step by step; Reluctance motors (H02K 41/035 takes precedence) [2013-01]
H02K 41/031
. . .
{of the permanent magnet type} [2013-01]
H02K 41/033
. . . .
{with armature and magnets on one member, the other member being a flux distributor} [2013-01]
H02K 41/035
. .
DC motors; Unipolar motors [2016-11]
H02K 41/0352
. . .
{Unipolar motors} [2013-01]
H02K 41/0354
. . . .
{Lorentz force motors, e.g. voice coil motors} [2013-01]
H02K 41/0356
. . . . .
{moving along a straight path} [2013-01]
H02K 41/0358
. . . . .
{moving along a curvilinear path} [2013-01]
H02K 41/06
.
Rolling motors, i.e. motors having the rotor axis parallel to the stator axis and following a circular path as the rotor rolls around the inside or outside of the stator {; Nutating motors, i.e. having the rotor axis parallel to the stator axis inclined with respect to the stator axis and performing a nutational movement as the rotor rolls on the stator} [2021-01]
H02K 41/065
. .
{Nutating motors} [2013-01]
H02K 44/00
Machines in which the dynamo-electric interaction between a plasma or flow of conductive liquid or of fluid-borne conductive or magnetic particles and a coil system or magnetic field converts energy of mass flow into electrical energy or vice versa [2013-01]
H02K 44/02
.
Electrodynamic pumps [2013-01]
H02K 44/04
. .
Conduction pumps [2013-01]
H02K 44/06
. .
Induction pumps [2013-01]
H02K 44/08
.
Magnetohydrodynamic [MHD] generators [2013-01]
H02K 44/085
. .
{with conducting liquids} [2013-01]
H02K 44/10
. .
Constructional details of electrodes [2013-01]
H02K 44/12
. .
Constructional details of fluid channels [2016-11]
H02K 44/14
. . .
Circular or screw-shaped channels [2016-11]
H02K 44/16
. .
Constructional details of the magnetic circuits [2016-11]
H02K 44/18
. .
for generating AC power [2016-11]
H02K 44/20
. . .
by changing the polarity of the magnetic field [2013-01]
H02K 44/22
. . .
by changing the conductivity of the fluid [2013-01]
H02K 44/24
. . .
by reversing the direction of fluid [2013-01]
H02K 44/26
. . .
by creating a travelling magnetic field [2013-01]
H02K 44/28
.
Association of MHD generators with conventional generators (nuclear power plants including a MHD generator G21D 7/02) [2013-01]
H02K 47/00
Dynamo-electric converters [2013-01]
H02K 47/02
.
AC/DC converters or vice versa [2016-11]
H02K 47/04
. .
Motor/generators [2013-01]
H02K 47/06
. .
Cascade converters [2013-01]
H02K 47/08
. .
Single-armature converters [2013-01]
H02K 47/10
. . .
with booster machines on the AC side [2016-11]
H02K 47/12
.
DC/DC converters [2016-11]
H02K 47/14
. .
Motor/generators [2013-01]
H02K 47/16
. .
Single-armature converters, e.g. metadyne [2013-01]
H02K 47/18
.
AC/AC converters [2016-11]
H02K 47/20
. .
Motor/generators [2013-01]
H02K 47/22
. .
Single-armature frequency converters with or without phase-number conversion [2013-01]
H02K 47/24
. . .
having windings for different numbers of poles [2013-01]
H02K 47/26
. . .
operating as under- or over-synchronously running asynchronous induction machines, e.g. cascade arrangement of asynchronous and synchronous machines [2013-01]
H02K 47/28
. . .
operating as commutator machines with added slip-rings [2013-01]
H02K 47/30
. .
Single-armature phase-number converters without frequency conversion [2013-01]
H02K 49/00
Dynamo-electric clutches; Dynamo-electric brakes [2021-01]
H02K 49/02
.
of the asynchronous induction type [2013-01]
H02K 49/04
. .
of the eddy-current hysteresis type [2021-01]
H02K 49/043
. . .
{with a radial airgap} [2013-01]
H02K 49/046
. . .
{with an axial airgap} [2013-01]
H02K 49/06
.
of the synchronous type {(H02K 49/10 takes precedence)} [2013-01]
H02K 49/065
. .
{hysteresis type} [2013-01]
H02K 49/08
.
of the collector armature type [2013-01]
H02K 49/10
.
of the permanent-magnet type [2013-01]
H02K 49/102
. .
{Magnetic gearings, i.e. assembly of gears, linear or rotary, by which motion is magnetically transferred without physical contact (magnetized gearings with physical contact F16H 13/12, F16H 49/005)} [2013-01]
H02K 49/104
. .
{Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element} [2013-01]
H02K 49/106
. . .
{with a radial air gap} [2013-01]
H02K 49/108
. . .
{with an axial air gap} [2013-01]
H02K 49/12
.
of the acyclic type [2013-01]
H02K 51/00
Dynamo-electric gears, i.e. dynamo-electric means for transmitting mechanical power from a driving shaft to a driven shaft and comprising structurally interrelated motor and generator parts [2013-01]
H02K 53/00
Alleged dynamo-electric perpetua mobilia [2013-01]
H02K 55/00
Dynamo-electric machines having windings operating at cryogenic temperatures [2013-01]
H02K 55/02
.
of the synchronous type [2013-01]
H02K 55/04
. .
with rotating field windings [2013-01]
H02K 55/06
.
of the homopolar type [2013-01]
H02K 99/00
Subject matter not provided for in other groups of this subclass [2016-11]
H02K 99/10
.
{Generators} [2016-11]
H02K 99/20
.
{Motors} [2016-11]
H02K 2201/00
Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits [2013-01]
H02K 2201/03
.
Machines characterised by aspects of the air-gap between rotor and stator [2013-01]
H02K 2201/06
.
Magnetic cores, or permanent magnets characterised by their skew [2013-01]
H02K 2201/09
.
Magnetic cores comprising laminations characterised by being fastened by caulking [2013-01]
H02K 2201/12
.
Transversal flux machines [2013-01]
H02K 2201/15
.
Sectional machines [2013-01]
H02K 2201/18
.
Machines moving with multiple degrees of freedom [2013-01]
H02K 2203/00
Specific aspects not provided for in the other groups of this subclass relating to the windings [2013-01]
H02K 2203/03
.
Machines characterised by the wiring boards, i.e. printed circuit boards or similar structures for connecting the winding terminations [2013-01]
H02K 2203/06
.
Machines characterised by the wiring leads, i.e. conducting wires for connecting the winding terminations [2013-01]
H02K 2203/09
.
Machines characterised by wiring elements other than wires, e.g. bus rings, for connecting the winding terminations [2013-01]
H02K 2203/12
.
Machines characterised by the bobbins for supporting the windings [2013-01]
H02K 2203/15
.
Machines characterised by cable windings, e.g. high-voltage cables, ribbon cables [2017-01]
H02K 2205/00
Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports [2013-01]
H02K 2205/03
.
Machines characterised by thrust bearings [2013-01]
H02K 2205/06
.
Machines characterised by means for keeping the brushes in a retracted position during assembly [2013-01]
H02K 2205/09
.
Machines characterised by drain passages or by venting, breathing or pressure compensating means [2013-01]
H02K 2205/12
.
Machines characterised by means for reducing windage losses or windage noise [2013-01]
H02K 2207/00
Specific aspects not provided for in the other groups of this subclass relating to arrangements for handling mechanical energy [2013-01]
H02K 2207/03
.
Tubular motors, i.e. rotary motors mounted inside a tube, e.g. for blinds [2013-01]
H02K 2209/00
Specific aspects not provided for in the other groups of this subclass relating to systems for cooling or ventilating [2013-01]
H02K 2211/00
Specific aspects not provided for in the other groups of this subclass relating to measuring or protective devices or electric components [2013-01]
H02K 2211/03
.
Machines characterised by circuit boards, e.g. pcb [2013-01]
H02K 2213/00
Specific aspects, not otherwise provided for and not covered by codes H02K 2201/00 - H02K 2211/00 [2013-01]
H02K 2213/03
.
Machines characterised by numerical values, ranges, mathematical expressions or similar information [2013-01]
H02K 2213/06
.
Machines characterised by the presence of fail safe, back up, redundant or other similar emergency arrangements [2013-01]
H02K 2213/09
.
Machines characterised by the presence of elements which are subject to variation, e.g. adjustable bearings, reconfigurable windings, variable pitch ventilators [2013-01]
H02K 2213/12
.
Machines characterised by the modularity of some components [2013-01]
H02K 2215/00
Specific aspects not provided for in other groups of this subclass relating to methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines [2021-08]