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Compressor and manufacturing method thereof

A compressor, laser welding technology, applied in the field of compressors

Inactive Publication Date: 2011-04-06
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first structural part can be laser welded

Method used

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  • Compressor and manufacturing method thereof
  • Compressor and manufacturing method thereof
  • Compressor and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach —

[0100] The high and low pressure dome compressor 1 of the first embodiment constitutes a refrigerant circuit together with the evaporator, condenser, expansion mechanism, etc., and the high and low pressure dome compressor 1 is responsible for compressing the gas refrigerant in the refrigerant circuit. function, such as figure 1 As shown, the high and low pressure dome compressor 1 mainly includes: a vertically long cylindrical sealed dome-shaped casing 10; a scroll compression mechanism 15; an Oldham ring 39; a drive motor 16; a lower main bearing 60; a suction pipe 19 and Exhaust pipe 20. Next, the structural components of the high and low pressure dome scroll compressor 1 will be described in detail respectively.

[0101]

[0102] (1) Shell

[0103] The housing 10 has: a substantially cylindrical main body housing 11; a bowl-shaped upper wall 12 welded to the upper end of the main body housing 11 in an airtight manner; Bowl-shaped bottom wall portion 13 . Further, the...

no. 2 approach —

[0196] Such as Figure 5 As shown, the swing compressor 101 of the second embodiment mainly includes: a cylindrical sealed dome-shaped housing 110 ; a swing compression mechanism part 115 ; a drive motor 116 ; a suction pipe 119 ; a discharge pipe 120 ; and a terminal device 195 . In addition, in this swing compressor 101 , an accumulator (gas-liquid separator) 190 is attached to the casing 110 . Hereinafter, the structural components of the swing compressor 101 will be described in detail respectively.

[0197]

[0198] (1) shell

[0199] The casing 110 has: a substantially cylindrical main body casing part 111; a bowl-shaped upper wall part 112 welded to the upper end of the main body casing part 111 in an airtight manner; Bowl-shaped bottom wall portion 113 at the lower end. Further, the casing 110 mainly accommodates: a swing compression mechanism unit 115 for compressing gas refrigerant; and a drive motor 116 disposed above the swing compression mechanism unit 115 . ...

no. 3 approach —

[0273] Such as Figure 16 As shown, the swing compressor 301 described in the third embodiment is a double-cylinder swing compressor, which mainly includes: a cylindrical sealed dome-shaped housing 310; a swing compression mechanism part 315; a drive motor 316; pipe 319; discharge pipe 320; and terminal equipment (not shown). In addition, in this swing compressor 301 , an accumulator (gas-liquid separator) 390 is attached to the housing 310 . Hereinafter, the structural components of the swing compressor 301 will be described in detail respectively.

[0274]

[0275] (1) shell

[0276] The casing 310 has: a substantially cylindrical body casing portion 311; a bowl-shaped upper wall portion 312 welded to the upper end portion of the body casing portion 311 in an airtight manner; Bowl-shaped bottom wall portion 313 at the lower end. Furthermore, the casing 310 mainly accommodates: a swing compression mechanism unit 315 for compressing gas refrigerant; and a drive motor 316...

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Abstract

Provided is a compressor, which can be reduced in size and offered at a low price on the market without losing the slidability and workability of the prior art. The compressor (1, 101, 201, 301, 401) is constituted of first composing parts (23, 123, 125, 323, 325, 327, 327A, 327B) and first sliding parts (24, 124, 224, 324, 324A, 326, 326A, 424). The first composing parts can be laser-welded. Thefirst sliding parts are made of cast iron having a carbon content of 2.0 wt. % to 2.7 wt. % and capable of being laser-welded. Thus, the first sliding parts are jointed to the first composing parts by the laser welding operation using no filler material.

Description

technical field [0001] The present invention relates to a compressor, and more particularly to a downsized (diameter-reduced) compressor. Background technique [0002] In the past, such a technique has been proposed: "The sealing surface and the welding surface are distinguished by forming the joint surface between the casing and the fixed scroll (fixed scroll) in a stepped shape, and laser welding is performed throughout the entire periphery of the welding surface, thereby Fastening the housing and the fixed scroll" (for example, refer to Patent Document 1). In addition, regarding laser welding, a technique has been proposed in the past that "insulates a pure nickel film between cast iron and steel, irradiates laser light from the steel side, and welds cast iron and steel" (for example, refer to Patent Document 2). [0003] Patent Document 1: Japanese Patent Laid-Open No. 2002-195171 [0004] Patent Document 2: Japanese Patent Laid-Open No. 2001-334378 [0005] However, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C18/02
CPCF04C2230/231F04C18/356F04C23/008F04C18/322F04C18/0215F04C2230/60F01C21/108Y10T29/49229Y10T29/49236Y10T29/4924Y10T29/49245F04C18/02
Inventor 岸川光彦广内隆山路洋行新井美绘梶原干央山本哲
Owner DAIKIN IND LTD