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Electric Compressor and Air Conditioning System for vehicle, Using the Electric Compressor

Inactive Publication Date: 2010-09-09
SANDEN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0005]The primary object of this invention is to provide an electric compressor which is further increased in reliability of preventing the overheating of the electric components and therefore has a further increased durability, and an automotive air conditioning system using the electric compressor.

Problems solved by technology

These circuits, particularly the inverter circuit tends to become high in temperature while supplying electric power to the electric motor.

Method used

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  • Electric Compressor and Air Conditioning System for vehicle, Using the Electric Compressor
  • Electric Compressor and Air Conditioning System for vehicle, Using the Electric Compressor
  • Electric Compressor and Air Conditioning System for vehicle, Using the Electric Compressor

Examples

Experimental program
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Embodiment Construction

[0025]FIG. 1 shows a schematic configuration of an embodiment of an automotive air conditioning system.

[0026]The system includes a refrigeration circuit 10, and a refrigerant circulation passage 11 of the refrigeration circuit 10 extends from a vehicle engine room 12 into a vehicle interior 14 through a partition wall 13. Within the engine room 12, an electric compressor 20, a condenser 21, a receiver 22 and an expansion valve 23 are disposed in the refrigerant circulation passage 11 in this order as viewed in the direction of the refrigerant circulation. The electric compressor 20 is arranged near the engine 24, and the condenser 21 is arranged near a vehicle radiator grill, together with a fan (not shown).

[0027]Within the vehicle interior 14, an evaporator 25 is disposed in the refrigerant circulation passage 11. The evaporator 25 is located downstream of the expansion valve 23. A front part of the vehicle interior 14 is defined as an instrument room 27 by an instrument panel 26, ...

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PUM

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Abstract

An electric compressor (20) comprises an electric motor (70) enclosed in a motor casing (33), a division wall (60) dividing the interior of the motor casing (33) and having an inner side surface in contact with a working fluid before compressed, a leg (120) integrally formed on an outer side surface of the division wall (60), and a control board (111) with a microcomputer (112) for driving the electric motor (70) mounted, the control board being fixed to the leg (120).

Description

TECHNICAL FIELD[0001]This invention relates to an electric compressor and an automotive air conditioning system, and particularly an electric compressor suited for an automotive air conditioning system.BACKGROUND ART[0002]Electric compressors have a compression unit and an electric motor enclosed in a housing. Some electric compressors have also an inverter circuit for driving the electric motor and a control circuit for controlling the inverter circuit, within the housing.[0003]These circuits, particularly the inverter circuit tends to become high in temperature while supplying electric power to the electric motor. Thus, the circuit board of the inverter circuit is arranged in a low-temperature region within the housing. For example, the electric compressor disclosed in Japanese Unexamined Patent Publication No. 2003-139069 has a circuit board of an inverter circuit fixed in close contact with a division wall of the housing, where the division wall is cooled by a working fluid befo...

Claims

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Application Information

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IPC IPC(8): F25B27/00F04B35/04
CPCB60H1/3223B60H2001/00614F04C2240/808F04C23/008F04C29/047F04C18/0215
Inventor SHIBUYA, MAKOTO
Owner SANDEN CORP
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