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Sealed type compressor

A compressor and hermetic technology, applied in the direction of liquid displacement machinery, mechanical equipment, variable displacement pump components, etc., can solve problems such as abnormal noise, wear, and steel ball 42 is prone to wear, and achieve reliability high effect

Inactive Publication Date: 2009-03-25
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] During work, when the steel ball 42 rolls on the surfaces of the upper holding piece 46 and the lower holding piece 48 with impact scars, the crankshaft 20 will vibrate up and down, and the vibration will be added to the compression assembly 2, so there is a possibility of abnormal noise question
In addition, since the steel ball 42 rolls on the surface of the upper holding piece 46 and the lower holding piece 48 with impact scars, there will also be such a problem that the steel ball 42 is prone to wear, and the powder produced by the wear will be brought to the surface. individual sliding parts, in which parts also cause wear

Method used

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  • Sealed type compressor
  • Sealed type compressor
  • Sealed type compressor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] figure 1 It is a front sectional view of the hermetic compressor in Embodiment 1 of the present invention, figure 2 is a side sectional view of the hermetic compressor in this embodiment, image 3 , Figure 4 is an enlarged partial cross-sectional view of the hermetic compressor in this embodiment, Figure 5 It is a top view of the support frame of the hermetic compressor in this embodiment.

[0044] like Figure 1 to Figure 5 As shown in , the sealed casing 101 is respectively equipped with an electric assembly 102 and a compression assembly 104 driven by the electric assembly 102 to rotate, and a refrigerating oil 106 is stored at the bottom. The electric component 102 and the compression component 104 are assembled into one body to form a compression mechanism 107 , and this compression mechanism 107 is elastically supported by a plurality of coil springs 108 .

[0045] The main configuration of the compression mechanism 107 will be described below.

[0046] ...

Embodiment 2

[0064] Image 6 It is a front sectional view of the hermetic compressor in Embodiment 2 of the present invention, Figure 7 is a top sectional view of the hermetic compressor in this embodiment, Figure 8 is a top view of the hermetic compressor in this embodiment, Figure 9 It is an enlarged partial cross-sectional view of the hermetic compressor in this embodiment.

[0065] like Figure 6 to Figure 9 As shown in , the electric assembly 202 and the compression assembly 204 driven to rotate by the electric assembly 202 are respectively installed in the sealed casing 201 , and a refrigerating oil 206 is stored at the bottom. The electric component 202 and the compression component 204 are assembled into one body to form a compression mechanism 207 , and the compression mechanism 207 is elastically supported by a plurality of coil springs 208 .

[0066] The main configuration of the compression mechanism 207 will be described below.

[0067] The cylinder block 210 in the co...

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Abstract

Provided is a sealed type compressor, which can prevent the collision generated at the superior extremity of the crankshaft and the top side of the seal housing and avoid forming collision scar on the thrust ball bearing to ensure the product reliability. A stop device is composed through setting the vertical orientation gap size B between the locking part (166) forming together with the supporting rack (164) and the stand bar (124) formed on the outskirt part of the cylinder body (110) into being smaller than the gap size A between the superior extremity surface (139) of the crankshaft (130) and the inner top side (160) of the sealed case (101), which can prevent the collide between the crankshaft (130) and sealed case (101), and prevent forming collision scar on the thrust ball bearing (150) meanwhile the generation of the abnormal noise is eliminated when working to prevent the abrasion generated in the thrust ball bearing.

Description

technical field [0001] The present invention relates to a hermetic compressor, in particular to a hermetic compressor used in freezing and refrigerating devices and the like. Background technique [0002] Some of the existing hermetic compressors use thrust ball bearings in order to improve efficiency, forming a structure in which the crankshaft can freely rotate with respect to the crankshaft supporting parts (for an example, refer to Japanese Patent Laid-Open Publication Sho 61-53474) . [0003] The above-mentioned conventional hermetic compressor will be described below with reference to the accompanying drawings. [0004] Figure 10 is a front sectional view of the conventional hermetic compressor shown in the above reference 1, Figure 11 It is an enlarged sectional view showing a partial structure of a conventional hermetic compressor. [0005] like Figure 10 , Figure 11 As shown in , the sealed casing 1 is respectively equipped with an electric assembly 2 and a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B39/00
Inventor 柳濑诚吾
Owner PANASONIC CORP