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Closed electric compressor

An electric compressor, airtight container technology, applied in the direction of machine/engine, liquid fuel engine, mechanical equipment, etc., can solve problems such as fatigue damage of components

Inactive Publication Date: 2007-01-17
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] As a result, in such a compressor, the suspension spring 9 and the discharge line (not shown) that are in elastic contact with the mechanical part and the airtight container 3 also undergo a large swinging rotation, so there is a possibility that these parts may be damaged due to fatigue. question

Method used

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  • Closed electric compressor
  • Closed electric compressor
  • Closed electric compressor

Examples

Experimental program
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Effect test

no. 1 Embodiment

[0028] figure 1 is a longitudinal sectional view of the compressor according to the first embodiment of the present invention. figure 2 is a cross-sectional view of the compressor according to this embodiment. image 3 is an upper sectional view of the compressor according to this embodiment.

[0029] exist figure 1 , figure 2 and image 3 In this example, the upper case 101 and the lower case 102 are combined and welded to form a closed container 103 . An electric device 106 composed of a stator 104 and a rotor 105 is arranged above the airtight container 103 , and a compression device 107 is arranged below. While the support member 108 is mounted on the inner wall of the lower case 102, the mechanical part composed of the electric device 106 and the compression device 107 is elastically supported by the suspension spring 109. The compression device 107 is provided with a crankshaft 110 having a main shaft 111 and an eccentric shaft 112, a cylinder block 113 which r...

no. 2 Embodiment

[0041] Figure 4 It is a longitudinal sectional view of a hermetic compressor according to a second embodiment of the present invention. Figure 5 is an upper sectional view of the hermetic compressor according to this embodiment.

[0042] The same reference numerals are assigned to the same configuration as in the first embodiment, and detailed description thereof will be omitted.

[0043] exist Figure 4 , Figure 5 Among them, the restricting portion 202a formed by forming a concave steel plate is provided at a position facing both sides of the flange portion 214a of the cavity portion 214 by welding. This restricting portion 202a is set so that the flange portion 214a comes into contact with the restricting portion 202a at first when the mechanical unit composed of the electric device 106 and the compressing device 107 swings and rotates when the compressor is started and stopped. In addition, the electric device 206 uses a synchronous motor that performs synchronous p...

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Abstract

The invention prevents fracture of a suspension spring and a discharge line by keeping whirling of a mechanical part right after start and stop in a hermetic electric compressor.A flange part 114a is provided close to a opening part of a bore part 114 of a cylinder block 113 and a regulating part 102a is provided at a position countering the flange part 114a on a lower shell 102. Since the flange part 114a of the bore part 114 which has largest energy is abutted on the regulating part 102a first, when the mechanical part whirls, whirling of the mechanical part at a time of start and stop can be effectively reduced.

Description

technical field [0001] The present invention relates to a highly reliable hermetic electric compressor used in refrigerators, air conditioners, and the like. Background technique [0002] In recent years, a hermetic electric compressor (hereinafter referred to as "compressor") has been required to have high efficiency, low noise, and high reliability. [0003] As a conventional compressor, an elastic absorber is provided in an airtight container to restrict the movement at the time of starting and stopping. For example, an example of the conventional compressor described in Japanese Patent No. 3045745 will be described. [0004] An example of the aforementioned conventional compressor will be described with reference to the following drawings. [0005] Image 6 It is the cross section of the existing hermetic compressor. Figure 7 It is a top cross-sectional view of a conventional hermetic compressor. [0006] exist Image 6 The upper middle shell 1 and the lower shell 2...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B39/00F04B35/04F04B39/12F04C29/06
Inventor 堀口隆文大野武
Owner PANASONIC CORP
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