CN102454612A - Scroll compressor and support structure thereof - Google Patents
Scroll compressor and support structure thereof Download PDFInfo
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- CN102454612A CN102454612A CN2010105290765A CN201010529076A CN102454612A CN 102454612 A CN102454612 A CN 102454612A CN 2010105290765 A CN2010105290765 A CN 2010105290765A CN 201010529076 A CN201010529076 A CN 201010529076A CN 102454612 A CN102454612 A CN 102454612A
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- support
- type buffer
- buffer cavity
- waist type
- compressor
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Abstract
Aiming at the defects of the current welding method for a support of a scroll compressor, a flexible welding method is adopted in the invention to weld the support on a compressor housing, and the support is provided with at least one waist-shaped cushioning cavity corresponding to welding holes. The structure can reduce the welding deformation of the support, has a stress-homogenizing effect, and reduces brittle fracture at welding spots, so that the welding strength of the support can meet the requirement of the compressor. The support structure is applied to the scroll compressor, the flow hole of the waist-shaped cushioning cavity can serve as the flow passage of compressed refrigerant, consequently, oil and gas are separated, the number of the parts of the whole compressor is reduced, moreover, the support structure is easy to process, and the cost is low.
Description
[technical field]
The present invention relates to the displacement vortex fluid field of mechanical technique, refer in particular to a kind of novel scroll compressor supporting structure and the scroll compressor of application.
[background technique]
Scroll compressor is because of its efficient is high, volume is little, light weight, noise is low, operating steadily is widely used in air-conditioning and the cooling machine set.Scroll compressor mainly comprises moving scroll, fixed scroll, cross slip ring, support, bent axle, component such as motor.Support links together through spot welding mode and compressor housing as the part of the main bearing load of scroll compressor.Therefore, support welding manner, weld strength are concerning the reliability and the life-span of scroll compressor complete machine.
Scroll compressor support welding manner is to adopt circumference spot welding mode that support and housing are fixed together at present.In processing upper bracket process, with the corresponding position of housing point welding hole, the welding hole 20 of processing certain specification.Existing supporting structure form is as shown in Figure 1.This welding manner has satisfied the support intensity requirement, can bear compressor operating load.But welding manner will increase the support welding deformation greatly side by side up and down, and the solder joint ambient stress is concentrated relatively and will be made soldering part produce brittle fracture.Under some excess load operating mode, the support solder joint is prone to become flexible during the compressor real-world operation, even breaks away from housing.This will reduce the reliability and the working life of compressor greatly.
Therefore, provide a kind of welding stress evenly not yielding, the stable new compressor support structure of fixed structure is necessary in fact.
[summary of the invention]
The object of the present invention is to provide the supporting structure of the compressor that a kind of welding stress is evenly not yielding, fixed structure stable, the refrigeration agent exhaust is concentrated.
Another object of the present invention is to provide a kind of stable and reliable structure, life-span long scroll compressor.
For realizing the object of the invention, following technological scheme is provided:
The present invention is directed to the shortcoming of present scroll compressor support welding manner; Adopt flexible welding manner that support is welded on the compressor housing; On the support of this compressor, be provided with the welding hole corresponding with compressor housing point welding hole, this support offers at least one waist type buffer cavity at welding hole corresponding position (promptly corresponding to weld).This structure can reduce the support welding deformation, plays the stress homogenization, reduces solder joint place's brittle fracture.
Through soldering test, welding hole Dimensions optimum value is around the support: welding hole diameter 6～8mm, the degree of depth 0.5～1mm, bottom hole angle degree 120～130 degree.
This has the supporting structure of waist type buffer cavity, and is identical with the structure in back pressure hole, center hole and the rolling bearing hole of original support framework.Waist type buffer cavity designs according to the housing welding position, for guaranteeing the sealing of fixed scroll and support sealing surface, answers choose reasonable waist type buffer cavity size, design attitude and quantity simultaneously.Preferably, as above bracket end face has enough spaces, and corresponding each bond pad locations all should be provided with waist type buffer cavity.Being provided with of this waist type buffer cavity can be asymmetric, also can be the distribution of symmetry.
This waist type buffer cavity has the opening as refrigerant circulation passage.The opening of this waist type buffer cavity makes that the refrigeration agent exhaust is more concentrated, and fluid step-down loss can be played the Oil-gas Separation effect.
The opening structure of waist type buffer cavity can be hole, single cross section (being that waist type buffer cavity through-hole diameter does not change) or variable cross section well format (being that waist type buffer cavity through-hole diameter changes).Because different distribution channel droop loss is different, oil gas separation is also different.
The arc surface of waist type buffer cavity can be a smoothed curve, also can be irregular geometrical line, jagged equity curve for example, and the shape of opening also can change as required.
The present invention also provides a kind of scroll compressor, and it adopts aforesaid supporting structure, and promptly this support offers waist type buffer cavity at the welding hole corresponding position.
The contrast existing technology, the present invention has the following advantages:
1, welding waist type buffer cavity structure can reduce support welding deformation stress and concentrate the influence to the soldering part brittle fracture, in welding process, the phenomenon of stress homogenizing can take place, and makes the weld strength of support satisfy the compressor demand.
2, the opening of waist type buffer cavity can be used as the circulation passage that compresses the back refrigeration agent, and the high-temperature high-pressure refrigerant gas after overcompression is concentrated through opening, flows into the compressor housing lower space, the cooling compressor motor; Meanwhile, when high temperature and high pressure gas was flowed through opening, because refrigerant gas is different with the lubricating oil rate of flow of fluid, the pressure drop of fluid can be played the Oil-gas Separation effect, reduced the compressor machine part.
3, reduce parts machining process, reduce cost: waist type buffer cavity just can be accomplished when the support cast blank, during Finishing Parts Machining, not be used in processing, reduces support blank material expense; Save the technology of processing exhaust passageway simultaneously, the machining cost reduces.
[description of drawings]
Fig. 1 a, 1b are existing two kinds of welding manners of support and structural representation;
The front view of Fig. 2 a support of asymmetric waist type buffer cavity for the present invention is provided with;
The sectional drawing of Fig. 2 b support of asymmetric waist type buffer cavity for the present invention is provided with;
Fig. 3 is the support sectional drawing that the present invention has 4 waist type buffer cavitys, change size opening;
Fig. 4 is to use the scroll compressor general assembly schematic representation of support of the present invention.
[embodiment]
See also Fig. 2 a, 2b, support of the present invention is provided with the welding hole corresponding with compressor housing point welding hole 11, and this support one side offers two waist type buffer cavitys 10 at welding hole 11 corresponding positions.This embodiment middle part of the side type buffer cavity is asymmetric setting.
See also Fig. 3, this embodiment middle part of the side type buffer cavity can see that for being symmetrical set all there is the opening of waist type buffer cavity 10 the support both sides on sectional view.
Supporting structure of the present invention is to adopt flexible welding manner that support is welded on the compressor housing, and this structure can reduce the support welding deformation, plays the stress homogenization, reduces solder joint place's brittle fracture.
See also Fig. 4, scroll compressor of the present invention, it comprises waist type buffer cavity 10 on fixed scroll 1, exhaust port 2, moving scroll 3, rotor 4, stator 5, bent axle 6, lower support assembly 7, housing 8, support 9, the support etc.The scroll compressor pump housing of the present invention is formed a sealing working space by moving scroll 3, fixed scroll 1, support 9, bent axle 6; Sucking pipe directly sucks refrigerant gas in the compression chamber of dynamic and static scroll composition; High temperature and high pressure gas after overcompression gets into the compressor upper space from fixed scroll 1 intermediate exhaust hole 2, and refrigerant gas flows to the compressor lower space through the opening of the waist type buffer cavity 10 of support, and high temperature and high pressure gas is through rotor; Motor is cooled off; Discharge compressor housing by the outlet pipe in the housing, get into air-conditioning system, the beginning refrigeration cycle.
The above is merely preferred embodiment of the present invention, and protection scope of the present invention is not limited thereto, and anyly all belongs within the protection domain of the present invention based on the equivalent transformation on the technological scheme of the present invention.
Claims (9)
1. a supporting structure that is applied to scroll compressor is provided with the welding hole corresponding with compressor housing point welding hole on the support of this compressor, it is characterized in that, this support offers at least one waist type buffer cavity at the welding hole corresponding position.
2. supporting structure as claimed in claim 1 is characterized in that, this support offers the waist type buffer cavity of symmetrical distribution.
3. supporting structure as claimed in claim 1 is characterized in that, corresponding each bond pad locations of this support is equipped with waist type buffer cavity.
4. supporting structure as claimed in claim 1 is characterized in that, this waist type buffer cavity has the opening as refrigerant circulation passage.
5. supporting structure as claimed in claim 4 is characterized in that, the opening structure of this waist type buffer cavity is a single cross section hole structure.
6. supporting structure as claimed in claim 4 is characterized in that, the opening structure of this waist type buffer cavity is the variable cross section hole structure.
7. supporting structure as claimed in claim 4 is characterized in that, the arc surface of this waist type buffer cavity is a smoothed curve.
8. supporting structure as claimed in claim 4 is characterized in that, the arc surface of this waist type buffer cavity is irregular geometrical line.
9. a scroll compressor is characterized in that, it adopts like each described supporting structure in the claim 1～8, and this support offers waist type buffer cavity at the welding hole corresponding position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105290765A CN102454612A (en) | 2010-10-29 | 2010-10-29 | Scroll compressor and support structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105290765A CN102454612A (en) | 2010-10-29 | 2010-10-29 | Scroll compressor and support structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102454612A true CN102454612A (en) | 2012-05-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105290765A Pending CN102454612A (en) | 2010-10-29 | 2010-10-29 | Scroll compressor and support structure thereof |
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| CN (1) | CN102454612A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882737A (en) * | 2017-11-07 | 2018-04-06 | 珠海凌达压缩机有限公司 | Compressor bracket component and compressor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6248988A (en) * | 1985-08-16 | 1987-03-03 | Hitachi Ltd | Closed type scroll compressor |
| CN1566690A (en) * | 2003-06-17 | 2005-01-19 | 乐金电子(天津)电器有限公司 | Upper load supporting device for rotation crankshaft of vortex compressor |
| KR100608867B1 (en) * | 2005-05-19 | 2006-08-08 | 엘지전자 주식회사 | Structure of refrigerant channel for high pressure scroll compressor |
| US20090185928A1 (en) * | 2008-01-17 | 2009-07-23 | Bitzer Scroll Inc. | Scroll Compressor Suction Flow Path & Bearing Arrangement Features |
| CN101539142A (en) * | 2008-03-19 | 2009-09-23 | 三洋电机株式会社 | Scroll compressor |
| CN201874826U (en) * | 2010-10-29 | 2011-06-22 | 珠海格力电器股份有限公司 | Scroll compressor and support structure thereof |
-
2010
- 2010-10-29 CN CN2010105290765A patent/CN102454612A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6248988A (en) * | 1985-08-16 | 1987-03-03 | Hitachi Ltd | Closed type scroll compressor |
| CN1566690A (en) * | 2003-06-17 | 2005-01-19 | 乐金电子(天津)电器有限公司 | Upper load supporting device for rotation crankshaft of vortex compressor |
| KR100608867B1 (en) * | 2005-05-19 | 2006-08-08 | 엘지전자 주식회사 | Structure of refrigerant channel for high pressure scroll compressor |
| US20090185928A1 (en) * | 2008-01-17 | 2009-07-23 | Bitzer Scroll Inc. | Scroll Compressor Suction Flow Path & Bearing Arrangement Features |
| CN101539142A (en) * | 2008-03-19 | 2009-09-23 | 三洋电机株式会社 | Scroll compressor |
| CN201874826U (en) * | 2010-10-29 | 2011-06-22 | 珠海格力电器股份有限公司 | Scroll compressor and support structure thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882737A (en) * | 2017-11-07 | 2018-04-06 | 珠海凌达压缩机有限公司 | Compressor bracket component and compressor |
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Application publication date: 20120516 |