CN103486039A - U-shaped sealing member for scroll compressor - Google Patents
U-shaped sealing member for scroll compressor Download PDFInfo
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- CN103486039A CN103486039A CN201210196892.8A CN201210196892A CN103486039A CN 103486039 A CN103486039 A CN 103486039A CN 201210196892 A CN201210196892 A CN 201210196892A CN 103486039 A CN103486039 A CN 103486039A
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- shaped
- shaped sealing
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- compressor
- shaped body
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Abstract
The invention relates to a U-shaped sealing member for a scroll compressor. The U-shaped sealing member comprises a U-shaped body, an opening side of the U-shaped body is provided with a stopping port, a U-shaped spring is arranged in the U-shaped body, and the opposite side of the opening of the U-shaped body is also provided with a stopping port. Compared with sealing members in the prior art, the U-shaped sealing member has the advantages of protection of the compressor from damaging during counter revolution, improvement of the reliability of the compressor, and the like.
Description
Technical field
The present invention relates to compressor, especially relate to the U-shaped Sealing of a kind of scroll compressor.
Background technique
The scroll compressor of existing Moving plate axial elasticity structure, while adopting the U-shaped Sealing 1 shown in Fig. 1 (built-in spring is U-shaped spring 2), U-shaped Sealing 1 one sides are provided with seam 3, if will there is no that placement that faces up of seam during assembling, when the compressor antiport, due to the external gas pressure effect, can cause U-shaped Sealing to flatten, and cause the damage of compressor complete machine.
Summary of the invention
Purpose of the present invention is exactly in order to overcome the defect that above-mentioned prior art exists, to provide a kind of protection compressor not to be damaged when reversion, improves the U-shaped Sealing of scroll compressor of the reliability of compressor.
Purpose of the present invention can be achieved through the following technical solutions; The U-shaped Sealing of a kind of scroll compressor, this U-shaped Sealing comprises U-shaped body, and this U-shaped body openings one side is provided with seam, is provided with U-shaped spring in U-shaped body, it is characterized in that, and the opposite side of described U-shaped body openings also is provided with seam.
The seam integrated setting of described U-shaped body and its opening both sides, be the double stopper structure.
The thickness of described U-shaped body is 0.4-0.6mm, and length is 3-6mm, and its opening side width is 2-4mm, and the length of each seam is 0.2-0.4mm.
When scroll compressor reverses, the back pressure cavity that the U-shaped Sealing in the Moving plate back side forms is in similar " vacuumizing " state, U-shaped Sealing chamber pressure is identical with Pressure in Back-pressure Cavity, can be greater than like this pressure of back pressure cavity due to the pressure in compressor housing, can cause U-shaped Sealing to flatten.
The U-shaped Sealing of the present invention adopts the double stopper structure, compressor is when reversion, whirlpool dish section can produce very high heat, under thermal deformation, seam section effectively isolates Moving plate back pressure cavity and U-shaped Sealing inner chamber, pressure in compressor housing is identical with U-shaped Sealing cavity pressure like this, can not cause U-shaped Sealing to produce the phenomenon of the failure of flattening.
Compared with prior art, the U-shaped Sealing of the present invention has adopted the double stopper design, places the U-shaped spring of knowing clearly in U-shaped circle, with the protection compressor, when reversing, is not damaged, and improves the reliability of compressor.
The accompanying drawing explanation
Fig. 1 is the structural representation of existing U-shaped Sealing;
The structural representation that Fig. 2 is the U-shaped Sealing of the present invention;
Fig. 3 is U-shaped seal loading schematic diagram;
The structural representation that Fig. 4 is compressor frame and closure gasket groove;
Fig. 5 is existing U-shaped Sealing shape timing schematic diagram.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Comparative Examples
When reversion, the similar quilt of Moving plate back pressure cavity " vacuumizes ", pressure in back pressure cavity (the P back of the body) is lower than housing internal pressure (P shell), during simultaneously due to reversion, whirlpool dish and frame can produce very high temperature, and (test was once found, through the 4min40s running, the corresponding frame solder joint of hull outside place temperature reaches 152 ℃).Under this high temperature, thermal expansion can occur in U-shaped sealing member material, and blocks transmission channel in back pressure cavity and housing.Under " P shell-P back of the body " effect, Sealing can be crushed, and built-in spring, because pressurized has surpassed its yield strength, also can be crushed.As shown in Figure 3.
After guaranteeing compressor start, gas enters rapidly back pressure cavity, and formation back pressure, be designed with the sinking 7 of 0.5mm at 6 of two closure gasket grooves of frame 5, as shown in Figure 4, to have U-shaped seal ring now is assembled, during assembling, as by U-shaped Sealing seam side down, as Fig. 5, when reversion, U-shaped Sealing bottom seam is due to thermal expansion, the A place is stopped up, and the B place is identical with frame deflection 0.5mm due to Sealing thickness, will there be leakage way at the B place, therefore when reversion, in U-shaped Sealing chamber, (C place) pressure P chamber is close with the P back of the body, but lower than the P shell, thereby under " P shell-P chamber " effect, U-shaped Sealing will be crushed.
Adopt former U-shaped Sealing, during assembling by the seam side down: through continuous three backing propeller tests, the backing propeller test time is respectively 3min55s, 2～3min, 2～3min, tears machine check open, and inside and outside two U-shaped Sealings all are crushed.
As shown in Figure 2, the U-shaped Sealing of a kind of scroll compressor, this U-shaped Sealing comprises U-shaped body 1, and this U-shaped body openings one side is provided with seam 3, and opposite side also is provided with seam 4, is provided with U-shaped spring 2. in U-shaped body
The seam integrated setting of described U-shaped body and its opening both sides, be the double stopper structure.
The thickness of described U-shaped body is 0.5mm, and length is 4mm, and its opening side width is 3mm, and the length of each seam is 0.3mm.
Both sides of the present invention all are arranged on compressor frame with the U-shaped Sealing of 0.3mm seam, and through continuous three backing propeller tests, reversing time is respectively 5min, 4min15s, 3min23s, tears machine check open, and inside and outside two U-shaped Sealings are all normal.
To adopting U-shaped Sealing (built-in spring is U-shaped spring) to form the scroll compressor of Moving plate back pressure cavity, when antiport, can cause U-shaped Sealing to flatten and permanent failure, the seam side all is designed to seam U-shaped Sealing can solve reversion the time upward or by U-shaped Sealing oral area both sides by when assembling, the problem of flattening, wherein all be designed to by U-shaped Sealing oral area both sides the needs that seam is more suitable for volume production.
Can be 0.4-0.6mm according to the thickness of the U-shaped body of actual demand of compressor, length can be 3-6mm, and its opening side width can be 2-4mm, and the length of each seam can be 0.2-0.4mm.
Claims (3)
1. the U-shaped Sealing of scroll compressor, this U-shaped Sealing comprises U-shaped body, and this U-shaped body openings one side is provided with seam, is provided with U-shaped spring in U-shaped body, it is characterized in that, and the opposite side of described U-shaped body openings also is provided with seam.
2. the U-shaped Sealing of a kind of scroll compressor according to claim 1, is characterized in that, the seam integrated setting of described U-shaped body and its opening both sides, be the double stopper structure.
3. the U-shaped Sealing of a kind of scroll compressor according to claim 1, is characterized in that, the thickness of described U-shaped body is 0.4-0.6mm, and length is 3-6mm, and its opening side width is 2-4mm, and the length of each seam is 0.2-0.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210196892.8A CN103486039A (en) | 2012-06-14 | 2012-06-14 | U-shaped sealing member for scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210196892.8A CN103486039A (en) | 2012-06-14 | 2012-06-14 | U-shaped sealing member for scroll compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103486039A true CN103486039A (en) | 2014-01-01 |
Family
ID=49826538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210196892.8A Pending CN103486039A (en) | 2012-06-14 | 2012-06-14 | U-shaped sealing member for scroll compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103486039A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113090527A (en) * | 2021-04-19 | 2021-07-09 | 重庆超力高科技股份有限公司 | Backpressure cavity seal structure, compressor and on-vehicle air conditioning system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04191571A (en) * | 1990-11-26 | 1992-07-09 | Mitsubishi Cable Ind Ltd | Seal for low temperature |
| JPH11182462A (en) * | 1997-12-19 | 1999-07-06 | Mitsubishi Electric Corp | Scroll compressor |
| CN1954149A (en) * | 2004-04-13 | 2007-04-25 | Nok株式会社 | Seal for pump |
| CN102313018A (en) * | 2010-06-30 | 2012-01-11 | 三菱电线工业株式会社 | The U-shaped Sealing |
-
2012
- 2012-06-14 CN CN201210196892.8A patent/CN103486039A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04191571A (en) * | 1990-11-26 | 1992-07-09 | Mitsubishi Cable Ind Ltd | Seal for low temperature |
| JPH11182462A (en) * | 1997-12-19 | 1999-07-06 | Mitsubishi Electric Corp | Scroll compressor |
| CN1954149A (en) * | 2004-04-13 | 2007-04-25 | Nok株式会社 | Seal for pump |
| CN102313018A (en) * | 2010-06-30 | 2012-01-11 | 三菱电线工业株式会社 | The U-shaped Sealing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113090527A (en) * | 2021-04-19 | 2021-07-09 | 重庆超力高科技股份有限公司 | Backpressure cavity seal structure, compressor and on-vehicle air conditioning system |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140101 |