US 9,810,219 B2
Motor-driven compressor including a coupling structure having a protrusion and insertion portion
Ken Suitou, Kariya (JP); Yusuke Kinoshita, Kariya (JP); Shingo Enami, Kariya (JP); and Junya Yano, Kariya (JP)
Assigned to KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, Kariya-shi, Aichi-ken (JP)
Filed by KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, Kariya-shi, Aichi-ken (JP)
Filed on Mar. 24, 2014, as Appl. No. 14/222,842.
Claims priority of application No. 2013-064337 (JP), filed on Mar. 26, 2013.
Prior Publication US 2014/0294624 A1, Oct. 2, 2014
Int. Cl. F04D 13/06 (2006.01); F04C 29/04 (2006.01); F04C 15/00 (2006.01); F04C 18/02 (2006.01)
CPC F04C 29/047 (2013.01) [F04C 15/0096 (2013.01); F04C 18/0215 (2013.01); F04D 13/0693 (2013.01); F04C 2240/403 (2013.01); F04C 2240/803 (2013.01); F04C 2240/808 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A motor-driven compressor comprising:
a compression unit adapted to compress refrigerant;
an electric motor adapted to drive the compression unit;
a housing that accommodates the compression unit and the electric motor;
a cover coupled to the housing;
a motor driving circuit arranged between the housing and the cover and adapted to drive the electric motor;
a metal terminal that electrically connects the electric motor to the motor driving circuit;
a coupling base disposed outside of the housing and coupled to the housing, the coupling based including a first side surface facing the cover and an opposing second side surface facing an end wall of the housing, wherein the motor driving circuit is coupled to the first side surface of the coupling base; and the end wall of the housing is coupled to the second side surface of the coupling base;
a refrigerant passage, which is an internal is space formed within the coupling base, wherein the refrigerant flows in the refrigerant passage: and,
a supply port formed in the coupling base to connect the refrigerant passage to an external refrigerator circuit, wherein
each of the coupling base and the housing includes an insertion hole through which the metal terminal is inserted in an inserting direction,
one of the coupling base and the housing includes a tubular protrusion portion that extends in a direction parallel to the inserting direction, wherein the tubular protrusion portion is separated from the insertion holes by a predetermined distance,
the other of the coupling base and the housing includes a receiving hole that receives the tubular protrusion portion inside the receiving hole,
the coupling base is positioned relative to the housing by insertion of the metal terminal into the insertion holes of the coupling base and the housing and by insertion of the tubular protrusion portion into the receiving hole in the direction parallel to the inserting direction of the metal terminal, and
a communication passage is formed in the tubular protrusion portion to communicate the refrigerant passage of the coupling base and an interior of the housing to each other.