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Motor-driven compressor

a motor-driven compressor and compressor technology, applied in the direction of positive displacement liquid engines, piston pumps, liquid fuel engines, etc., can solve the problems of preventing the motor-driven compressor from exerting sufficient heating performance, reducing the heat of the refrigerant, etc., to prevent the transmission of vibration and noise, and achieving sufficient heating performance

Inactive Publication Date: 2013-01-17
TOYOTA IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention aims to provide a motor-driven compressor that reduces vibration and noise while ensuring sufficient heating performance when used as a heat pump.

Problems solved by technology

As a result, the amount of heat of the refrigerant easily decreases, thus preventing the motor-driven compressor from exerting sufficient heating performance when the compressor is employed as a heat pump.

Method used

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  • Motor-driven compressor
  • Motor-driven compressor

Examples

Experimental program
Comparison scheme
Effect test

first embodiment

[0014]As shown in FIG. 1, a motor-driven compressor 1 is used in an air conditioner mounted in a vehicle to adjust the temperature in the passenger compartment. The air conditioner is configured by the motor-driven compressor 1, a direction switch valve 91, an atmospheric air heat exchanger 92, an expansion valve 93, and a passenger compartment heat exchanger 94. With reference to FIG. 2, the motor-driven compressor 1 includes a compression mechanism 3, a motor mechanism 5, an inner housing member 10, and an outer housing member 20, which accommodates the inner housing member 10. The inner housing member 10 accommodates the compression mechanism 3 and the motor mechanism 5 in a sealed state.

[0015]The compression mechanism 3 is configured by a fixed scroll 3A and a movable scroll 3B, which faces the fixed scroll 3A. The fixed scroll 3A is fixed to an inner peripheral surface 11B of a first inner housing section 11, which is a component of the inner housing member 10. The fixed scroll...

second embodiment

[0040]As illustrated in FIG. 4, a motor-driven compressor of a second embodiment of the invention employs an outer housing member 21 instead of the outer housing member 20 of the first embodiment. Detailed description is omitted herein for components of the second embodiment that are the same as or like corresponding components of the first embodiment.

[0041]As illustrated in FIG. 4, the outer housing member 21 is configured by a first housing section 211 and a second housing section 212. The first and second housing sections 211, 212 are each formed by adding a substantially semi-circular wall portion 213 to each of the opposite ends of the corresponding first and second housing sections 201, 202 of the first embodiment. A cutout 214 is formed in each of the wall portions 213 to avoid interference with the suction member 50 or the discharge member 60. By combining the first and second housing sections 211, 212 with each other, the outer housing member 21 is formed in a container-lik...

third embodiment

[0043]As illustrated in FIG. 5, a motor-driven compressor of a third embodiment of the invention employs an outer housing member 22 instead of the outer housing member 20 of the first embodiment. Detailed description is omitted herein for components of the third embodiment that are the same as or like corresponding components of the first embodiment.

[0044]With reference to FIG. 5, the outer housing member 22 includes housing sections 221, 222 and a hinge portion 223 for joining the housing sections 221, 222 to each other. The hinge portion 223 is formed integrally with the housing sections 221, 222.

[0045]The housing section 221 is shaped similarly to the first housing section 201 of the first embodiment but does not have the joint portion 201C. Likewise, the housing section 222 is shaped similarly to the second housing section 202 but does not include the joint portion 202C. The hinge portion 223 connects an upper side of the housing section 221 to an upper side of the housing secti...

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PUM

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Abstract

A motor-driven compressor includes an inner housing member that accommodates a compression mechanism and a motor mechanism in a sealed state. The motor-driven compressor also includes an outer housing member that accommodates the inner housing member and has attachment portions, which are fixed to a target through bolts. The inner housing member has a suction port for drawing refrigerant into the compression mechanism and a discharge port for discharging the refrigerant from the compression mechanism. A suction member and a discharge member, which are connected to the suction port and the discharge port, respectively, are fixed to the inner housing member. The outer housing member is formed of vibration-absorbing and heat-insulating material. The outer housing member is combined with the inner housing member such that the outer housing member accommodates the inner housing member and is held in a non-contact state with respect to the suction member and the discharge member.

Description

BACKGROUND OF THE INVENTION[0001]The present invention relates to a motor-driven compressor.[0002]Japanese Laid-Open Patent Publication No. 11-294365 discloses a conventional motor-driven compressor. The motor-driven compressor includes a compression mechanism for compressing refrigerant, a motor mechanism for driving the compression mechanism, an inner housing member, and an outer housing member for accommodating the inner housing member. The inner housing member accommodates the compression mechanism and the motor mechanism in a sealed state. The inner housing member has a suction port for drawing refrigerant into the compression mechanism and a discharge port for discharging the refrigerant from the compression mechanism. An external pipe connected to the suction port and another external pipe connected to the discharge port are fixed to the inner housing member. The external pipes are held in contact with the outer housing member and supported in this state.[0003]The motor-drive...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F04B17/00
CPCF01C21/10F04C2270/12F04C23/008F04C18/0215F04C18/02F04C29/00F04B39/12F04B39/121F04B39/127
Inventor OTA, TAKAYUKISUITOU, KEN
Owner TOYOTA IND CORP