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Electric compressor

A technology of electric compressors and compressors, which is applied in the directions of machines/engines, mechanical equipment, liquid variable capacity machines, etc., can solve problems such as cost increase, and achieve the effect of high durability

Inactive Publication Date: 2005-08-10
SANDEN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in order to obtain high pressure, the inclined plate must be rotated at high speed. However, in the structure using the inclined plate, since the inclined plate rotates while contacting the sliding shoe on the piston side, there is a gap between the sliding part of the sliding shoe and the inclined plate. Durability issues under high load conditions or severe lubrication conditions
Therefore, when the refrigeration circuit using carbon dioxide refrigerant is put into practical use, there is a problem that, for example, high-priced components with high strength are used for the main components in order to improve the durability of the compressor, resulting in an increase in cost.

Method used

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Embodiment Construction

[0024] Figure 1 to image 3 An embodiment of the present invention is shown.

[0025] Such an electric compressor includes a compressor main body 10 that sucks and discharges a refrigerant, a compression unit 20 that compresses the refrigerant sucked into the compressor main body 10 , and a motor 30 that drives the compression unit 20 .

[0026] The compressor main body 10 is formed in a cylindrical shape, and is disposed on one end of the first housing 11 by a first housing 11 formed on the compression part 20 side and a second housing 12 formed on the motor 30 side. The cylinder head 13, the valve plate 14 arranged between the first casing 11 and the cylinder head 13, and the intermediate plate 15 arranged between the casings 11 are constituted.

[0027] The first housing 11 has a plurality of cylinders 11 a arranged at equal intervals along the circumferential direction at one end, and one end of each cylinder 11 a is opened on one end surface of the first housing 11 . Th...

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Abstract

The present invention provides an electric compressor that can realize high durability and high efficiency by means of a low-cost construction, and is advantageous in providing a construction for using a carbon dioxide refrigerant. In the electric compressor in accordance with the present invention, the rotational motion of an inclined plate 23 having a predetermined fixed angle of inclination is converted to swinging motion of a swing plate 24 that swings while the rotation thereof is regulated, and pistons 21 are driven by the swinging motion of the swing plate 24. Therefore, a construction having no sliding part due to the rotation of the inclined plate 23 can be provided, so that the durability can be improved.

Description

technical field [0001] The invention relates to an electric compressor using carbon dioxide refrigerant and used in a vehicle air conditioner. Background technique [0002] Generally, as such an electric compressor, for example, as described in Japanese Patent Laid-Open Publication No. 2000-291557, by making one of a pair of scroll-shaped members face the other scroll-shaped member to perform a predetermined rotational motion In addition to compressing the refrigerant, that is, the so-called scroll compressor, it is also known, for example, as described in Japanese Patent Laid-Open Publication No. 2000-130870, by making a piston with an outer diameter smaller than the inner diameter of the cylinder move along the cylinder. The inner peripheral surface of the compressor rotates to compress the refrigerant, which is the so-called rotary piston compressor. [0003] However, when carbon dioxide refrigerant is used, since the pressure is higher than that of conventional CFC gas ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B27/08F04B27/10
CPCF04B27/1081F04B27/0895
Inventor 寺内清
Owner SANDEN CORP