Scroll compressor

A scroll compressor and scroll technology, applied in the field of scroll compressors, can solve problems such as performance deterioration and leakage

Active Publication Date: 2013-11-06
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, a gap is generated between the orbiting scroll and the fixed scroll, so leakage occurs during compression, causing performance deterioration

Method used

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Experimental program
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Effect test

Embodiment 1

[0212] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the present invention is not limited to these embodiments.

[0213] The first embodiment of the present invention will be described. figure 1 Is a longitudinal sectional view of the scroll compressor in the first embodiment of the present invention, figure 2 Yes figure 1 Sectional view of the compression mechanism of the scroll compressor. Next, the structure, operation, and function of the scroll compressor of the first embodiment will be described.

[0214] Such as figure 1 , figure 2 As shown, the scroll compressor of the present embodiment is composed of an airtight container 1, a compression mechanism 2 provided in the airtight container 1, a motor part 3, and an oil reservoir 20.

[0215] The main bearing part 11 of the crankshaft 4 fixed by welding and thermo-compression fitting in the airtight container 1 and the fixed scroll 12 fixed on the main beari...

Embodiment 2

[0253] The second embodiment of the present invention will be described. Figure 7 It is a cross-sectional view of the compression mechanism of the scroll compressor in the second embodiment of the present invention. In this embodiment, the invention part that is different from the embodiment 1 will be described. That is, in Figure 7 In, for and figure 2 The same components are given the same symbols, and their descriptions are omitted.

[0254] Such as Figure 7 As shown, in the scroll compressor of this embodiment, the second path 56 is constituted by a second control path that passes from the back pressure chamber 29 through the inside of the orbiting scroll 13 and then communicates with the thrust surface 13f of the orbiting scroll 13. Furthermore, the second control path opens intermittently in the scroll tooth groove 12g of the fixed scroll 12 according to the rotational movement.

[0255] Picture 8 Is a cross-sectional view of the orbiting scroll 13 and the fixed scroll ...

Embodiment 3

[0265] The third embodiment of the present invention will be described. Picture 9 Is a longitudinal sectional view of the scroll compression mechanism in the third embodiment of the present invention, Picture 10 Yes Picture 9 Sectional view of the compression mechanism of the scroll compressor, Picture 11 Yes Picture 10 A cross-sectional view of the fixed scroll and the orbiting scroll of the compression mechanism in a meshing state.

[0266] Such as Picture 9 As shown, in the scroll compressor of this embodiment, the main bearing part 11 of the crankshaft 4 fixed by welding and hot press fitting in the airtight container 1 and the fixed scroll 12 fixed with bolts on the main bearing part 11 In between, the orbiting scroll 13 meshing with the fixed scroll 12 is sandwiched to constitute a scroll compression mechanism 2. Furthermore, a rotation restricting mechanism 14 is provided between the orbiting scroll 13 and the main bearing member 11, and the rotation restricting mecha...

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PUM

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Abstract

A scroll compressor in which timing of communication between a high-pressure region and a back pressure chamber and timing of communication between the back pressure chamber and a compression chamber are controlled to prevent excessive back pressure, allowing application of stable back pressure. As a result, the scroll compressor has high efficiency and high reliability. The scroll compressor has a first route (54) for intermittently interconnecting a high-pressure region (30) and a back pressure chamber (29), and also has a second route (55) for intermittently interconnecting the back pressure chamber (29) and a compression chamber (15).

Description

Technical field [0001] The present invention relates to a scroll compressor used in refrigeration devices such as heating and cooling air-conditioning devices, refrigerators, or heat pump water supply devices. Background technique [0002] In the past, scroll compressors used in refrigeration air-conditioners and refrigerators generally engaged a fixed scroll member and a rotating scroll member with a spiral scroll tooth member erected from a panel (or wall plate). , Forming a compression chamber between the two. When the orbiting scroll is rotated along a circular orbit in accordance with the rotation restriction of the rotation restriction mechanism, the compression chamber changes its volume while moving, thereby performing suction, compression, and discharge. The working fluid is gradually compressed along with the rotating motion of the orbiting scroll and gradually becomes a high-pressure state toward the center. Therefore, the deviating force acts on the orbiting scroll ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C18/02
Inventor 作田淳河野博之中本达也大野龙一山田定幸森本敬二上义幸船越大辅飨场靖阪井学嶋田贤志吉田裕文池田明鶸田晃中井启晶
Owner PANASONIC CORP
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