Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Compression mechanism and scroll compressor

A scroll compressor and compression mechanism technology, applied in the field of compressors and scroll compressors, can solve the problems of deformation, low strength and rigidity, and cracking of compression parts, and achieve reduced thickness, high strength and rigidity, and increased Effect of Suction Volume

Active Publication Date: 2010-07-07
DAIKIN IND LTD
View PDF1 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the strength and rigidity are low, the compressed part will be deformed or broken when driven
This problem is significant in the case of gray cast iron products

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Compression mechanism and scroll compressor
  • Compression mechanism and scroll compressor
  • Compression mechanism and scroll compressor

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0082] In the compression mechanism 15 of the present embodiment, the materials used for the fixed scroll 24 and the movable scroll 26 are different from each other.

[0083] Specifically, either one of the fixed scroll 24 and the movable scroll 26 is a molded product formed by molding cast iron by a semi-molten die casting method (hereinafter referred to as "semi-moltendie cast molding"). . Able to adopt a tensile strength of 600N / mm in semi-molten die-casting molded products 2 More than 900N / mm 2 The following components.

[0084] And, the other side is gray cast iron. Gray cast iron products can adopt a tensile strength of 250N / mm 2 More than but less than 300N / mm 2 parts. This is because the strength and rigidity necessary for preventing deformation or cracking can be ensured. In addition, the tensile strength is 250N / mm 2 More than but less than 300N / mm 2 Gray cast iron products are standardized as FC 250 in JIS (Japanese Industrial Standards: Japanese Industrial...

no. 2 approach

[0105] In this embodiment, the shape of the compression mechanism 15 described in the first embodiment will be described.

[0106]

[0107] As described in the first embodiment, the strength and rigidity of the scroll member of the semi-molten die-cast molded product are increased by using the semi-molten die-cast molded product for either the fixed scroll 24 or the movable scroll 26 . Accordingly, the scroll member of the semi-molten die-cast molded product is less likely to be broken and less likely to be bent.

[0108] On the other hand, when the strength and rigidity of the scroll member increase, the thickness d2 (d1) of the compression member 26b (24b) of the semi-molten die-cast molded product can be reduced. However, for semi-molten die-cast molded products, its strength is about 2.4 to 3.6 times (600 to 900 MPa / 250 MPa) that of FC250, while its rigidity is only 1.6 to 1.7 times (175 to 190 GPa / 110 GPa) that of FC250. )degree. Therefore, if the thickness d2 (d1) at...

no. 3 approach

[0144] In this embodiment, the fixed scroll 24 is made of gray cast iron (FC250) and the movable scroll 26 is made of semi-molten die-cast compression mechanism 15, and the discharge hole (discharge hole) provided on the fixed scroll is described ).

[0145] First, regarding the release hole, use Figure 13 A conventional example will be described. The release hole 242 is disposed on the fixed scroll 24 . Specifically, it is disposed on the mirror plate 24a at a position between the swirl-shaped compression parts 24b. The release hole 242 communicates with the compression chamber (space 40 ) and the space 45 ( figure 1 ). In addition, the space 45 is located on the opposite side of the movable scroll 26 with respect to the mirror plate 24a of the fixed scroll 24 ( figure 1 ).

[0146] Conventionally, gray cast iron (FC250), for example, is used for either the fixed scroll 24 or the movable scroll 26, and the thickness d1 of the compression member 24b is substantially the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A compression mechanism that has increased strength and rigidity and in which seizure is prevented. A scroll compressor (1) has the compression mechanism (15). The compression mechanism (15) has a stationary scroll (24) and a movable scroll (26) and compresses refrigerant. The stationary scroll (24) and the movable scroll (26) use different materials. Specifically, either of the stationary scroll (24) and the movable scroll (26) is a die cast molding produced by molding cast iron by semi-molten die casting. The other is a gray pig cast iron product. A gray pig cast iron product having a tensile strength in the range of not less than 250 N / mm2 but not more than 300 N / mm2 can be used.

Description

technical field [0001] The invention relates to a compressor and a scroll compressor, in particular to a material used for a compression mechanism. Background technique [0002] A scroll compressor has a compression mechanism that compresses a refrigerant. The compression mechanism includes a fixed scroll (fixed scroll) and a movable scroll (movable scroll) having compression members extending in a spiral shape (scroll shape) that mesh with each other. [0003] In the past, most of the same material was used for the fixed scroll and the movable scroll. Proposals for this material include, for example, gray cast iron products, molded products obtained by molding cast iron by semi-molten die casting, and the like. [0004] In addition, techniques related to the present invention are as follows. [0005] Patent Document 1: Japanese Patent Laid-Open No. 2005-36693 [0006] However, when the same material is used for the fixed scroll and the movable scroll, there are the foll...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F04C18/02F04C29/00
CPCF04C2210/1027F05C2201/0439F04C2210/1072F04C2230/21F04C23/008F04C18/0269B22D17/007C22C1/02F04C18/0261
Inventor 山本哲梶原干央岸川光彦山路洋行新井美绘村上泰弘
Owner DAIKIN IND LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com