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CN201496230U - piston for refrigeration compressor - Google Patents

piston for refrigeration compressor Download PDF

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Publication number
CN201496230U
CN201496230U CN2009201956322U CN200920195632U CN201496230U CN 201496230 U CN201496230 U CN 201496230U CN 2009201956322 U CN2009201956322 U CN 2009201956322U CN 200920195632 U CN200920195632 U CN 200920195632U CN 201496230 U CN201496230 U CN 201496230U
Authority
CN
China
Prior art keywords
piston
refrigeration compressor
cavity
connecting rod
piston cavity
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2009201956322U
Other languages
Chinese (zh)
Inventor
徐信国
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN2009201956322U priority Critical patent/CN201496230U/en
Application granted granted Critical
Publication of CN201496230U publication Critical patent/CN201496230U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Compressor (AREA)

Abstract

The utility model relates to a piston used for a refrigeration compressor, which includes a piston body (1), a piston cavity (2) and a pin hole (3), and is characterized in that the long side surface of the piston cavity (2) is an inner-concave arc surface. The piston for the refrigeration compressor, which adopts the structure, has the advantages as follows: the long side surface of the piston cavity (2) is the inner concave arc surface, so that when the piston works, contact area between the end surface of a connecting rod and the inner cavity of the piston is reduced, the friction and the collision between the end surface of the connecting rod and the inner cavity of the piston are reduced, and the noise of the compressor operation is lowered.

Description

The refrigeration compressor piston
Technical field
The utility model relates to a kind of piston, specifically is a kind of refrigeration compressor piston.
Background technique
Piston is an important part of refrigeration compressor.The piston of prior art comprises piston body, piston cavity and pin-and-hole, it cooperates with connecting rod by bearing pin and forms the refrigeration compressor piston apparatus, the axle of described connecting rod by bearing pin and pin-and-hole cooperates and is installed in the piston cavity, and the long limit face of described piston cavity is for facing directly.There is following defective in the piston of above structure: because the long limit face of described piston cavity is for facing directly, so when pistons work moves, the long limit face area of contact of connecting rod end face and piston cavity is bigger, and frictional impact is also more frequent each other, thereby causes in the compressor operating process noise bigger.
The model utility content
The technical problems to be solved in the utility model is, overcomes existing technological deficiency, and a kind of refrigeration compressor piston that reduces the compressor operating noise is provided.
Technical solution of the present utility model is, a kind of refrigeration compressor piston is provided, and comprises piston body, piston cavity and pin-and-hole, and the long limit face of described piston cavity is interior concaved circular cambered surface.
After adopting above structure, the utility model refrigeration compressor with piston compared with prior art, have the following advantages: because the long limit face of described piston cavity is interior concaved circular cambered surface, so when pistons work moves, the long limit face area of contact of connecting rod end face and piston cavity reduces, effectively reduced frictional impact each other, noise reduces in the compressor operating process thereby make.
Description of drawings
Fig. 1 is the side view of the refrigeration compressor of prior art with piston.
Fig. 2 is the front view of the refrigeration compressor of prior art with piston.
Fig. 3 is the front view of the utility model refrigeration compressor with piston.
Fig. 4 is the side view that the utility model refrigeration compressor cooperates with bearing pin, connecting rod with piston.
Fig. 5 is the front view that the utility model refrigeration compressor cooperates with bearing pin, connecting rod with piston.
Shown in the figure: among the prior art figure 1 ', piston body, 2 ', piston cavity, 2.1 ' long limit face, 3 ' pin-and-hole, among the utility model figure 1, piston body, 2, piston cavity, 2.1, long limit face, 3, pin-and-hole, 4, connecting rod.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Be prior art refrigeration compressor piston as shown in Figure 1 and Figure 2, it comprise piston body 1 ', piston cavity 2 ' and pin-and-hole 3 ', it cooperates with connecting rod by bearing pin and forms the refrigeration compressor piston apparatus, described connecting rod by bearing pin and pin-and-hole 3 ' axle cooperate be installed on piston cavity 2 ' in, described piston cavity 2 ' long limit face 2.1 ' for facing directly.
As shown in Figure 3, the utility model refrigeration compressor piston comprises piston body 1, piston cavity 2 and pin-and-hole 3, and the long limit face 2.1 of described piston cavity 2 is interior concaved circular cambered surface, and promptly two long limit faces 2.1 are recessed relatively arc surface.
As Fig. 4, shown in Figure 5, working principle of the present utility model is that described refrigeration compressor cooperates composition refrigeration compressor piston apparatus with piston by bearing pin with connecting rod 4, described connecting rod 4 was installed in the piston cavity 2 by bearing pin and cooperating of pin-and-hole 3, because the long limit face 2.1 of described piston cavity 2 is interior concaved circular cambered surface, long limit face 2.1 area of contact of connecting rod 4 end faces and piston cavity 2 reduce when pistons work moves, effectively reduced frictional impact each other, noise reduces in the compressor operating process thereby make.

Claims (1)

1. refrigeration compressor piston, it comprises piston body (1), piston cavity (2) and pin-and-hole (3), it is characterized in that: the long limit face (2.1) of described piston cavity (2) is interior concaved circular cambered surface.
CN2009201956322U 2009-09-03 2009-09-03 piston for refrigeration compressor Expired - Fee Related CN201496230U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009201956322U CN201496230U (en) 2009-09-03 2009-09-03 piston for refrigeration compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009201956322U CN201496230U (en) 2009-09-03 2009-09-03 piston for refrigeration compressor

Publications (1)

Publication Number Publication Date
CN201496230U true CN201496230U (en) 2010-06-02

Family

ID=42439438

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009201956322U Expired - Fee Related CN201496230U (en) 2009-09-03 2009-09-03 piston for refrigeration compressor

Country Status (1)

Country Link
CN (1) CN201496230U (en)

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Ningbo Ningjiang Powder-Metallurgy Co., Ltd.

Assignor: Xu Xinguo

Contract record no.: 2011330000364

Denomination of utility model: Piston for refrigeration compressor

Granted publication date: 20100602

License type: Exclusive License

Record date: 20110428

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100602

Termination date: 20120903