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ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES
Definition statement
This subclass/group covers:

Arrangements or adaptations of heating, cooling, ventilating or other air treating devices specially for passengers or goods in spaces of vehicles.

Only inventions, that relate exclusively to vehicles are covered by this subclass.

Relationship between large subject matter areas

Devices providing other air treatment (humidifying, dehumidifying, scenting, filtering) B60H 3/00

References relevant to classification in this subclass
This subclass/group does not cover:
Garments or clothes including a HVAC
Ventilating solely by opening windows, doors, roof parts or the like
Heating or ventilating devices for vehicle seats independent from the vehicle HVAC
Window or windscreen cleaners using air, e.g. defrosters
HVAC for railway vehicles
HVAC for boats / ships
HVAC for air crafts
HVAC for buildings
Heating, cooling or ventilating batteries or accumulators and independent from the cabin HVAC
Informative references
Attention is drawn to the following places, which may be of interest for search:
Filters per se
Compressors per se
Heat exchangers comprising heat generating means
Heat exchangers per se
Special rules of classification within this subclass

Refrigerated goods vehicles: B60P if the vehicle aspect is pertinent

Glossary of terms
In this subclass/group, the following terms (or expressions) are used with the meaning indicated:
HVAC
Heating, Ventilating and Air Conditioning (devices or systems)
Heating, cooling or ventilating devices (heating, cooling or ventilating devices providing other air treatment, the other treatment being relevant, B60H 3/00; ventilating solely by opening windows, doors, roof parts, or the like B60J; heating or ventilating devices for vehicle seats B60N 2/56; vehicle window or windscreen cleaners using air, e.g. defrosters, B60S 1/54)
Definition statement
This subclass/group covers:

Heating, cooling and/or ventilating (HVAC) devices for the air inside a vehicle cabin or a load area.

References relevant to classification in this group
This subclass/group does not cover:
Devices for other treatment of air (e.g. scenting, moistening, drying, filtering)
Special rules of classification within this group

B60H 1/00 and subclasses: vehicle specific documents

B60H 1/32 and subclasses: refrigerant circuit and component specific documents

{for load cargos on load transporting vehicles}
Definition statement
This subclass/group covers:

Structure of HVAC units the vehicle, air ducts.

References relevant to classification in this group
This subclass/group does not cover:
If refrigeration circuit features are characterizing
Informative references
Attention is drawn to the following places, which may be of interest for search:
Refrigerated goods vehicles in general
{ Heating, cooling or ventilating devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit}
Relationship between large subject matter areas

Heating/cooling liquid urea for exhaust gas treatment:

F01N 3/2066 and Indexing Code F01N 2610/11 cool, /10 heat.

{for the battery (arrangement of batteries B60R 16/04) }
Definition statement
This subclass/group covers:

Battery cooling and/or heating linked to the vehicle interior air conditioning circuit.

References relevant to classification in this group
This subclass/group does not cover:
When the battery cooling circuit is completely separate from the cabin air conditioner
Informative references
Attention is drawn to the following places, which may be of interest for search:
Mounting batteries in electric vehicles
Batteries in hybrid vehicles
Monitoring batteries
Arrangement of batteries
Cooling batteries
Battery technology as such
Special rules of classification within this group

If there is an additional evaporator for cooling the battery in an airstream, also classify in B60H 1/323.

{Arrangements permitting a rapid heating of the heating liquid (B60H 1/00492, B60H 1/03 take precedence; aiding engine start by heating of engine coolants F02N 19/10) }
Relationship between large subject matter areas

Software for engine control related to temperature: F02D 41/00

Heating engine with electric means: F02N 19/04

{Heat exchangers for air-conditioning devices (B60H 1/3227 takes precedence) }
Relationship between large subject matter areas

Heat exchangers per se: F28D, F28F

{of the liquid-air type}
Definition statement
This subclass/group covers:

Coolant / air heat exchangers are classified here.

Special rules of classification within this group
{of the gas-air type (B60H 1/18 takes precedence) }
Definition statement
This subclass/group covers:

Refrigerant / air heat exchangers are classified here

References relevant to classification in this group
This subclass/group does not cover:
Air / Air heat exchangers
{ of the liquid-liquid type}
Definition statement
This subclass/group covers:

Refrigerant / water or refrigerant / refrigerant or water/water heat exchangers, e.g. stacked plates.

{Air-conditioning arrangements specially adapted for particular vehicles}
Definition statement
This subclass/group covers:

HVAC characterized by features related to the type of vehicle are classified here and in the subclasses.

Informative references
Attention is drawn to the following places, which may be of interest for search:
{for caravans or trailers}
Definition statement
This subclass/group covers:

HVAC for camping trailers, recreational vehicles and other trailers.

References relevant to classification in this group
This subclass/group does not cover:
HVAC for load transport vehicle trailers (aspects of the trailer)
HVAC for load transport vehicle trailers (aspects of the refrigeration unit itself)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Refrigerated goods vehicles as such
Animal transport vehicles as such
{for vehicles carrying large numbers of passengers e.g. buses}
Definition statement
This subclass/group covers:

HVAC specific to all road vehicles carrying more passengers than a standard passenger car.

References relevant to classification in this group
This subclass/group does not cover:
Railway vehicles,
Aircrafts
Informative references
Attention is drawn to the following places, which may be of interest for search:
Buses
FTerm: 3L211/AA05
{for tractor or load vehicle cabins}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Truck cabins with sleeping accommodations
Tractor and off-road vehicle cabins
{for vehicles having an electrical drive, e.g. hybrid or fuel cell}
Relationship between large subject matter areas

When batteries or fuel cells are cooled or heated: B60H 1/00278

References relevant to classification in this group
This subclass/group does not cover:
When the fuel cell is used for driving the AC components only
Informative references
Attention is drawn to the following places, which may be of interest for search:
Hybrid vehicles
Series hybrid vehicles
Electric vehicles with batteries or fuel cells
Control
Cooling a fuel cell
Heating a fuel cell
For electric or hybrid cars
FI:B60H1/22&671
Hybrid vehicles
FTerms: 3L211/AA10
Electric vehicles
FTerms: 3L211/AA11
{ for electric vehicles having only electric drive means}
Definition statement
This subclass/group covers:

Vehicles driven by an electric motor. Includes fuel cell vehicles and vehicles having a combustion motor only for generating electric power ("range extender").

References relevant to classification in this group
This subclass/group does not cover:
When electric and hybrid vehicles are mentioned equally
If a fuel cell is used only for driving a HVAC
{ for vehicles having a combustion engine and electric drive means, e.g. hybrid electric vehicles}
Definition statement
This subclass/group covers:

All hybrid vehicles where the combustion engine can be mechanically coupled to the wheels for vehicle propulsion.

References relevant to classification in this group
This subclass/group does not cover:
When electric and hybrid vehicles are mentioned equally
{ for open or convertible vehicles}
Definition statement
This subclass/group covers:

Vehicles having body parts that can be opened (e.g. convertibles, golf carts) and this affects the air conditioning system.

Relationship between large subject matter areas
Informative references
Attention is drawn to the following places, which may be of interest for search:
Convertibles in general
Seats having "air scarfs"
{ for military, emergency, safety or security vehicles}
Definition statement
This subclass/group covers:

Vehicles like ambulances, tanks, anti bacteriological warfare vehicles etc. where the air conditioning system is specially adapted to the use of the vehicle (e.g. germ filters, pressurized cabin).

Informative references
Attention is drawn to the following places, which may be of interest for search:
Ambulances
Armored vehicles in general.
{electric}
Definition statement
This subclass/group covers:

Aspects of power supply (e.g. use of converters / inverters) to drive components (e.g. compressors) of the HVAC.

Solar power and fuel cell power used for air conditioning when the vehicle drive is not electric.

Relationship between large subject matter areas

Domestic air conditioning using natural energy, see F24F 5/0046

Semiconductor Solar Cells per se: H01L 31/042

References relevant to classification in this group
This subclass/group does not cover:
DC-DC converters
AC-AC converters
AC/DC converters
{Ventilation unit, e.g. combined with a radiator (control systems for ventilators B60H 1/00828) }
Definition statement
This subclass/group covers:

Fans in combination with other components of the HVAC unit, e.g. with heat exchangers.

Relationship between large subject matter areas

Ventilators in general: F04D 15/0005, F04D 25/08

Electrical motors: H02K

Informative references
Attention is drawn to the following places, which may be of interest for search:
Fan casings
For radial fans:
For axial fans:
Assembly / disassembly of fans:
Heaters & casing details & integrated fans
R24D19/06E
{ Air-conditioning devices using the Peltier effect (for air-conditioning in general F24F5/00D; for refrigeration F25B 21/02; electric devices exhibiting the Peltier effect H01L 35/00) }
Definition statement
This subclass/group covers:

Thermoelectric modules (based on the Peltier or Seebeck effect) in HVAC units are classified here.

References relevant to classification in this group
This subclass/group does not cover:
Thermoelectric modules in fuel burning heaters
Informative references
Attention is drawn to the following places, which may be of interest for search:
Machines using Peltier
Thermoelectric cooling devices per se
Peltier elements
FI: B60H1/32&621G
{Valves for air-conditioning devices, e.g. thermostatic valves (valves per se F16K; thermostatic valves per se G05D 23/02) }
Definition statement
This subclass/group covers:

Vehicle HVAC characterized by specially adapted valves for refrigerant and/or coolant.

Informative references
Attention is drawn to the following places, which may be of interest for search:
Expansion Valves
Control of expansion valves
{characterised by comprising regenerative heating or cooling means, e.g. heat accumulators}
Definition statement
This subclass/group covers:

HVAC units comprising accumulators storing heat or both heat and cold are classified here.

References relevant to classification in this group
This subclass/group does not cover:
If only cold storage is included in the HVAC
Informative references
Attention is drawn to the following places, which may be of interest for search:
Cold storages used in domestic HVAC
{Mounting or fastening of components in housings, e.g. heat exchangers, fans, electronic regulators}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Fastening elements on heat exchangers
Mounting heat exchangers in vehicle bodies
Sealings
Front end modules
{the housing or parts thereof being integrated in other devices, e.g. dashboard}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Dashboards
Dashboards having incorporated ventilation channels
{of air ducts}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Integrated air ducts
Ducts, integrated guide vanes
Ducting arrangements for domestic air treatment
{of liquid ducts, e.g. for coolant liquids or refrigerants}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Pipes, joints of fittings per se
Couplings with fluid cut-off means using two valves
Fluid-circulation arrangements for domestic cooling
Flexible pipes with four or more layers, e.g. for refrigerants
{Means for monitoring, testing or servicing the air-conditioning}
Definition statement
This subclass/group covers:

Service units for servicing the vehicle HVAC.

Includes units for purging, evacuating, filling and testing such an HVAC.

Informative references
Attention is drawn to the following places, which may be of interest for search:
For filling
For testing
{Add-on devices, e.g. heat/cooling boxes, compartment dividers, upgrade sets}
Definition statement
This subclass/group covers:

Receptacles connected to the vehicle HVAC for cooling or heating.

Partition elements used inside the vehicle cabin for separating a cooled or heated compartment.

References relevant to classification in this group
This subclass/group does not cover:
Receptacles for food or beverages with refrigerating or warming systems:
{Control members, e.g. levers or knobs (B60H 1/00985 takes precedence) }
Informative references
Attention is drawn to the following places, which may be of interest for search:
Remote control devices
Switches per se
H01K15/00
Touch switches per se
Capacitive switches
{Construction or arrangement of damper doors (control systems or circuits for damper doors B60H 1/00835) }
Informative references
Attention is drawn to the following places, which may be of interest for search:
Air flow control members for domestic air-conditioning
{Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Monitoring multiple temperatures
{by detection of the vehicle occupants` presence; by detection of conditions relating to the body of occupants, e.g. using radiant heat detectors}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Sensors in seats
{the input being solar radiation}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Solar sensors
{the input being a vehicle driving condition, e.g. speed (B60H 1/00828, B60H 1/00864 take precedence) }
Definition statement
This subclass/group covers:

Control systems using vehicle speed as input.

Relationship between large subject matter areas

B60H 1/3208 if control of the compressor is based on the vehicle speed.

References relevant to classification in this group
This subclass/group does not cover:
If the vehicle position is characterizing
Stop/Idle related control methods
{ the input being a vehicle position or surrounding, e.g. GPS-based position or tunnel}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Specially adapted for navigation in a road network
{ the input being air quality}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Air quality sensors per se
{Damper doors, e.g. position control (construction or arrangement of damper doors B60H 1/00664; B60H 1/00864 takes precedence) }
Relationship between large subject matter areas

Means (levers, gears...) for moving doors see B60H 1/00857

{characterised by the means connecting the initiating means, e.g. control lever, to the damper door}
Definition statement
This subclass/group covers:

Drive means for doors etc are classified here.

Informative references
Attention is drawn to the following places, which may be of interest for search:
Gears
Domestic use
{Controlling the flow of liquid in a heat pump system (controlling the properties of the refrigerant liquid, e.g. pressure or temperature, B60H 1/3204) }
Informative references
Attention is drawn to the following places, which may be of interest for search:
The system uses a heat pump
Heat pumps
{Control systems or circuits characterised by failure of detection or safety means; Diagnostic methods}
Definition statement
This subclass/group covers:

Methods for detection of insufficient refrigerant charge (when performed by the vehicle itself) are classified here.

Relationship between large subject matter areas

See B60H 1/3233 for compressor saving methods.

L60H191/00 (B60H): detecting the charge level of refrigerant

References relevant to classification in this group
This subclass/group does not cover:

Devices for Testing HVAC are classified in B60H 1/00585

Informative references
Attention is drawn to the following places, which may be of interest for search:
Safety devices for refrigeration machines, e.g. level control of refrigerant
Synonyms and Keywords

In patent documents the following abbreviations are often used:

DE
F├╝llstandserkennung
{Control systems or circuits characterised by display or indicating devices, e.g. voice simulators (characterised by the input of sound using a voice synthesizer B60H 1/00757; B60H 1/00978 takes precedence) }
Informative references
Attention is drawn to the following places, which may be of interest for search:
Instruments in dashboards
Display or monitoring for domestic air-conditioning
the heat being derived from the propulsion plant { (B60H 1/00492 takes precedence) }
References relevant to classification in this group
This subclass/group does not cover:
The use of heat of electric motors
{from the cooling liquid of the propulsion plant and from a viscous fluid heater}
Relationship between large subject matter areas

If no cooling water of the engine is used, then classify in B60H 2001/146

Informative references
Attention is drawn to the following places, which may be of interest for search:
Viscous fluid heaters
otherwise than from cooling liquid of the plant {e.g. heat from the grease oil, the brakes, the transmission unit (B60H 1/03 takes precedence) }
Informative references
Attention is drawn to the following places, which may be of interest for search:
Liquid cooled brakes
{ the heat being derived from cooling an electric component, e.g. electric motors, electric circuits, fuel cells or batteries}
Definition statement
This subclass/group covers:

The source of heat is waste heat from electric components.

Relationship between large subject matter areas

If an electric heater is provided: B60H 1/2215

the heat being derived otherwise than from the propulsion plant { (B60H 1/0025, B60H 1/00492 and B60H 1/03 take precedence) }
Informative references
Attention is drawn to the following places, which may be of interest for search:
Water heaters
Air heaters
Details of heaters in general
{ the heat being derived from burners (burners in general F23C, F23D, F24H 9/18) }
Informative references
Attention is drawn to the following places, which may be of interest for search:
Fuel burning heaters with evaporation means
Exhaust systems
Fuel supply
Controlling combustion
Ignition means
Fluid fuel water heaters
Vehicle heating
{ the heat being derived from electric heaters (in general H05B; for electric traction vehicles B60L 1/02) }
Informative references
Attention is drawn to the following places, which may be of interest for search:
Supply of electric power to heating circuits in electric vehicles
Electric resistance heating for domestic use
Electric water heaters in general
Electric heating for vehicles
{ controlling the operation of electric heaters}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Helically or spirally coiled water heaters with electrical energy supply
{ arrangements of electric heaters for heating an intermediate liquid (B60H 1/034 takes precedence) }
Informative references
Attention is drawn to the following places, which may be of interest for search:
Heating means for windscreen-cleaning liquid
Air heaters using electric energy supply
Water heaters specially adapted for vehicle systems
{ characterised by the location of ventilation devices in the vehicle}
Definition statement
This subclass/group covers:

Ventilating systems in a vehicle characterized by the position of the nozzles relative to the vehicle.

{ located in the rear area}
Special rules of classification within this group

All documents of the former EC B60H1/24F are classified here.

{ located in the interior of the vehicle or in or below the floor}
Special rules of classification within this group

All documents from former EC class B60H1/24G are classified here.

{ Disposition of several air-diffusers in a vehicle for ventilation-air circulation in a vehicle cabin}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Dashboards having incorporated ventilation channels
{using one-way valves}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Check valves
Air-flow control members with movable members for domestic air-conditioning
Ventilating openings in vehicle exterior; Ducts for conveying ventilating air
Informative references
Attention is drawn to the following places, which may be of interest for search:
Radiator guards
{Openings in or on the vehicle roof}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Roof Hatches per se
the openings being situated directly in front of vehicle front window
Informative references
Attention is drawn to the following places, which may be of interest for search:
Cowls for vehicles
{using absorption or adsorption (in general F25B 15/00, F25B 17/00) }
Informative references
Attention is drawn to the following places, which may be of interest for search:
Liquids for absorption type circuits
Sorbtion machines in general
{using evaporation, i.e. not including a compressor, e.g. involving fuel or water evaporation (B60H 1/3235 takes precedence; in general F25B 19/00, F25D 7/00) }
Informative references
Attention is drawn to the following places, which may be of interest for search:
Domestic air-condition systems using evaporation
Machines using evaporation of refrigerant without recovery of the vapour
Devices using evaporation without recovery of the vapour
Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, using the cooling effect of natural or forced evaporation
In case there is a separate airflow not in contact with the wet elements
{using compression (B60H 1/3233 takes precedence; in general F25B, F25D) }
Informative references
Attention is drawn to the following places, which may be of interest for search:
Refrigerant liquids
{characterised by the compressor driving arrangements, e.g. clutches, transmissions or multiple drives (B60H 1/3208, B60H 1/3226 take precedence) }
Definition statement
This subclass/group covers:

Hybrid compressor drives (mechanic and electric) are classified here

{characterised by comprising auxiliary or multiple systems, e.g. plurality of evaporators, or by involving auxiliary cooling devices}
Relationship between large subject matter areas

If batteries are cooled, use B60H 1/00278.

{particularly adapted for load transporting vehicles (B60H 1/3226 takes precedence) }
Definition statement
This subclass/group covers:

Refrigerant units for truck cargo space

Relationship between large subject matter areas

B60H 1/00014 if the aspects of the vehicle are characterizing.

Informative references
Attention is drawn to the following places, which may be of interest for search:
Refrigerated goods vehicles
{characterised by condensed liquid drainage means}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Evacuating condensate in domestic air-conditioning
Nozzles; { Air-diffusers } (dispositions of air diffusers in a vehicle B60H 1/247)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Outlets for directing or distributing air into rooms or spaces for domestic air-conditioning
F24F 13/06 , F24F 13/08F24F 13/10 , F24F 13/14. FI: B60H1/34&611 , 631, 651, 671 FTerms: 3L081/...
Air-flow control members, e.g. louvres, grilles or flaps for domestic air-conditioning
Outlets for windshield defrosting
{ Outlets providing a vortex, i.e. a spirally wound air flow}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Domestic air-conditioning
Other air-treating devices
Definition statement
This subclass/group covers:

Devices for treating air inside or flowing into a cabin or load area of a vehicle, characterized by other aspects than heating, cooling or ventilation.

These aspects are e.g: Scenting, Deodorizing, Ionizing, Humidity control, Filtering.

Relationship between large subject matter areas

Control methods using detection of air quality or humidity as input: B60H 1/00735.

{Adding substances other than water to the air, e.g. perfume, oxygen}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Human necessities
Air treatment other than cooling or heating in domestic air-conditioning systems
F24F 3/12, F24F3/18, R24F201/18
{Electrically conditioning the air, e.g. by ionizing}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Deodorizing by ionizing of air,
By UV-Light
Air stream with ions
Ion type
FI-Terms: B60H3/06&A
Deodorizing
FI-Terms B60H3/00&F
Moistening
FI-Terms B60H3/00&Z
Electric means for purifying
Ionizing
R24F201/14
Odorizing
R24F201/18
Sterilizing with UV light
R24F201/12A
{Smell or pollution preventing arrangements } (B60H 3/0007, B60H 3/0071, B60H 3/02, B60H 3/06 take precedence)
Definition statement
This subclass/group covers:

Cleaning or disinfecting of the interior of the HVAC for preventing or removing smell or malodour, e.g. malodour caused by fungi or accumulated dirt.

Informative references
Attention is drawn to the following places, which may be of interest for search:
Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses
Cleaning internal surfaces in general
Cleaning substances
Cleaning by jets
Cleaning by using chemical substances
Moistening; { Devices influencing humidity levels, i.e. humidity control (B60H 1/3202, B60H 1/3207 take precedence) }
Definition statement
This subclass/group covers:
  • Means for reducing or increase of air humidity.
  • Control of air humidity.
Informative references
Attention is drawn to the following places, which may be of interest for search:
Domestic air-conditioning systems with air treatment by humidification or dehumidification
Air-humidification of domestic rooms
Filtering { (B60H 3/0078 takes precedence) }
Definition statement
This subclass/group covers:

Cleaning outside or recirculated air entering the vehicle cabin by the use of filters.

References relevant to classification in this group
This subclass/group does not cover:
Cleaning the environmental atmosphere (not the air for the cabin) by a filter in a vehicle
B01D, L01D259/70
Informative references
Attention is drawn to the following places, which may be of interest for search:
For general filter aspects
Filtering by adsorption or absorption
Filter condition indicators
Filters with stationary adsorbents
Arrangement or mounting of filters for domestic air-conditioning
This page is owned by Office of Patent Classification.
Last Modified: 10/11/2013