Motor driven compressor for a vehicle

Patent metadata

Field	Value
Publication number	US-9447924-B2
Application number	US-201314024920-A
Country	US
Kind code	B2
Filing date	Sep 12, 2013
Priority date	Sep 18, 2012
Publication date	Sep 20, 2016
Grant date	Sep 20, 2016

Abstract

A first accommodation chamber accommodating therein an inverter unit with a built-in inverter circuit and a second accommodation chamber accommodating therein a filter unit with a built-in filter circuit are formed individually in different positions of a housing of a motor-driven compressor for a vehicle. The input terminals and the output terminals of the inverter unit and of the filter unit are all arranged so as to extend in the same direction.

First claim

What is claimed is:

1. A motor-driven compressor for a vehicle comprising:
a housing,
an inverter unit,
an inverter circuit incorporated in the inverter unit,
a filter unit connected to the inverter unit,
a filter circuit incorporated in the filter unit,
wherein a first accommodation chamber is formed in the housing, the inverter unit is incorporated in the first accommodation chamber, and
a second accommodation chamber is formed in the housing,
wherein the filter unit is incorporated in the second accommodation chamber, and the filter circuit has an input terminal and an output terminal that extend from the same direction from the filter circuit,
wherein the housing has a cylindrical shape,
wherein the first accommodation chamber is formed at an end of the cylindrical housing, and the second accommodation chamber is formed on the periphery of the cylindrical housing and extends in an axial direction of the cylindrical housing.

2. A motor-driven compressor for a vehicle according to claim 1 , wherein the first accommodation chamber has an opening towards which the input and output terminals extend, wherein the second accommodation chamber is connected to the first accommodation chamber through the opening.

3. A motor-driven compressor for a vehicle according to claim 2 , wherein a terminal for power supply of the motor-driven compressor extends out from the first accommodation chamber.

4. A motor-driven compressor for a vehicle according to claim 2 , wherein a terminal for power supply of the motor-driven compressor extends in the same direction as the input and output terminals.

5. A motor-driven compressor for a vehicle according to claim 2 , wherein a terminal for power supply of the motor-driven compressor extends out from the second accommodation chamber.

6. A motor-driven compressor for a vehicle according to claim 1 , further comprising a terminal for power supply extending out from the first accommodation chamber,
wherein the first accommodation chamber has an opening in any direction other than the direction in which the protruding input and output terminals of the filter circuit extend,
the second accommodation chamber is connected to the first accommodation chamber through the opening.

7. A motor-driven compressor for a vehicle according to claim 1 , wherein there is no passage connecting the first accommodation chamber and the second accommodation chamber.

8. A motor-driven compressor for a vehicle according to claim 1 , further comprising a compression mechanism and an electric motor,
wherein the housing is formed with an accommodation space which accommodates the compression mechanism and the electric motor, and a partition wall separates the accommodation space from the second accommodation chamber,
wherein the compression mechanism and the electric motor are incorporated in the accommodation space in the axial direction of the electric motor, the filter unit extends in the axial direction of the electric motor, and the inverter unit extends in the direction transverse to the axis of the electric motor.

9. A motor-driven compressor for a vehicle according to claim 8 ,
wherein the inverter circuit is connected to the electric motor through a metal terminal, and the metal terminal is incorporated in the housing and extends in the same direction as the input and output terminals.

10. A motor-driven compressor for a vehicle according to claim 8 , further comprising a passage allowing refrigerant to flow therethrough formed at an accommodation space side of the partition wall.

11. A motor-driven compressor for a vehicle according to claim 1 , wherein the filter circuit includes a positive input line, a positive output line, a negative input line, a negative output line, and an insulator,
wherein the positive input line and the negative input line are arranged in parallel with the insulator interposed therebetween, and the positive output line and the negative output line are arranged in parallel with the insulator interposed therebetween.

12. A motor-driven compressor for a vehicle comprising:
a housing,
an inverter unit,
an inverter circuit incorporated in the inverter unit,
a filter unit connected to the inverter unit,
a filter circuit incorporated in the filter unit,
wherein a first accommodation chamber is formed in the housing, the inverter unit is incorporated in the first accommodation chamber, and
a second accommodation chamber is formed in the housing,
wherein the filter unit is incorporated in the second accommodation chamber, and the filter circuit has an input terminal and an output terminal that extend from the same direction from the filter circuit,
wherein the housing has a cylindrical shape,
wherein the second accommodation chamber is formed at an end of the cylindrical housing, and the first accommodation chamber is formed on the periphery of the cylindrical housing and extends in the axial direction of the cylindrical housing.

Assignees

• Toyota Jidoshokki Kk

Inventors

• Fukasaku Hiroshi
• Najima Kazuki

Classifications

• H02K11/05

  Rectifiers associated with casings, enclosures or brackets · CPC title

• F04B39/121

  Casings · CPC title

• Y10T137/85978

  With pump · CPC title

• F04C2240/30

  Casings or housings · CPC title

• F17D1/04 Primary

  for distribution of gas · CPC title