CN202851360U - Compression pump body of rotary compressor - Google Patents
Compression pump body of rotary compressor Download PDFInfo
- Publication number
- CN202851360U CN202851360U CN 201220400856 CN201220400856U CN202851360U CN 202851360 U CN202851360 U CN 202851360U CN 201220400856 CN201220400856 CN 201220400856 CN 201220400856 U CN201220400856 U CN 201220400856U CN 202851360 U CN202851360 U CN 202851360U
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- China
- Prior art keywords
- oil
- oil return
- cylinder
- hole
- compressor
- 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 - Lifetime
Links
- 230000006835 compression Effects 0.000 title claims abstract description 14
- 238000007906 compression Methods 0.000 title claims abstract description 14
- 238000000605 extraction Methods 0.000 claims abstract description 19
- 239000002184 metal Substances 0.000 claims description 7
- 239000003921 oil Substances 0.000 abstract description 68
- 238000005057 refrigeration Methods 0.000 abstract description 22
- 230000000694 effects Effects 0.000 abstract description 6
- 239000010725 compressor oil Substances 0.000 abstract description 4
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000003584 silencer Effects 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
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- Applications Or Details Of Rotary Compressors (AREA)
Abstract
A compression pump body of a rotary compressor comprises a cylinder, an upper bearing and a lower bearing which are correspondingly arranged on the upper side and the lower side of the cylinder, and an eccentric roller which is arranged in the cylinder and is arranged at the lower end of a rotating shaft of the compressor; an oil return through hole is formed in the upper bearing, an oil return channel penetrating through the air cylinder is formed in the air cylinder, and an oil discharge outlet is formed in the lower bearing; the oil return through hole, the oil return channel and the oil discharge outlet are communicated. The utility model discloses an offer an oil return through-hole in the lower disk seat recess of last flange position, set up oil return channel on the cylinder, set up the oil extraction export at the up end of lower flange, oil return through-hole, oil return channel and oil extraction export have formed one set of oil return pipeline in the pump body, make long-pending refrigeration oil in the disk seat recess in time flow back to the oil bath of casing lower extreme, the utility model discloses an oil return pipeline draws the refrigeration oil back to compressor oil bath, can reach the effect that reduces compressor oil extraction volume, improves the compressor performance.
Description
Technical field
The utility model relates to compressor field, relates in particular to the compression pump housing that uses on a kind of air condition compressor.
Background technique
The existing closed rotary compressor that is used on the household electric appliance such as air-conditioning generally includes shell, stator, rotor, rotating shaft, the pump housing, gas-liquid separator, sucking pipe and outlet pipe, and the pump housing is communicated with gas-liquid separator through connecting tube.The pump housing in the compressor plays compression, is used for suction and compressed refrigerant and with refrigeration agent output, is the compressing mechanism of compressor.The pump housing of compressor comprises cylinder, eccentric roller, upper bearing (metal), lower bearing, piston.Cylinder is installed in the rotor below, be positioned at the shell bottom, upper end at cylinder arranges upper flange, the lower end arranges lower flange, eccentric roller is arranged in the cylinder, eccentric roller is fixedly mounted on the rotating shaft lower end simultaneously, under driving, rotating shaft rotates with rotor, band movable slider straight reciprocating motion in pump housing during eccentric roller rotation, thus refrigeration agent is compressed.The pneumatic noise that causes in order to reduce exhaust is equipped with silencer cover in the top and bottom of the pump housing.Rotor rotates in stator interior during work, do eccentric rotary by the eccentric roller that rotating shaft drives in the pump housing, under the eccentric rotary effect of eccentric roller, refrigeration agent is inhaled in the compression volume of the pump housing and compresses, surpass critical pressure until be compressed into pressure, just export in the refrigerating circulation system through outlet pipe.
Outer casing bottom at compressor has a certain amount of refrigeration oil in order to each moving element in the lubricate compressors, refrigeration oil in the compressor is extremely important to the normal operation of compressor, in the mechanical compress process, the effects such as that refrigeration oil plays is lubricated, cooling, sealing, the disappearance of refrigeration oil can cause compressor abrasion to increase, local temperature is too high, and compressor reduces working life, and the faults such as card cylinder, burn-down of electric motor are set.During operation of air-conditioner, the bump of the pressurized gas process silencer cover jog of band oil, meeting cutting out partial refrigeration oil, refrigeration oil flow to the valve seat groove of upper flange along the inwall of silencer cover; Simultaneously, when the pump housing compressed, eccentric roller can be released the part refrigeration oil in the compression chamber from the relief opening of upper flange, and this also can cause refrigeration oil to accumulate in the valve seat groove of upper flange.This two-part refrigeration oil collects in around the relief opening of the valve seat groove that is positioned at upper flange, because upper flange relief opening temperature is usually above the oil sump temperature more than 20 ℃, long-pending oil in the valve seat groove can volatilize or again be taken away by the high speed exhaust air-flow again, the oil drain quantity of the pump housing is increased, cause compressor performance to reduce.
The model utility content
The purpose of this utility model provides and a kind ofly can reduce compressor oil drainage amount, improves the pump housing of the rotary compressor of system's heat transfer effect.
To achieve these goals, the utility model is taked following technical solution:
A kind of compression pump housing of rotary compressor, comprise cylinder, correspondence be installed in cylinder up and down both sides upper bearing (metal) and lower bearing, be arranged on the eccentric roller that is installed in the compressor rotation shaft lower end in the cylinder; Be provided with oil return through-hole at upper bearing (metal), be provided with the drainback passage that runs through cylinder at cylinder, be provided with the oil extraction outlet at lower bearing; Oil return through-hole, drainback passage and oil extraction outlet are connected.
Oil return through-hole of the present utility model, drainback passage and oil extraction go out in the vertical direction and align.
Oil return through-hole of the present utility model is arranged in the valve seat recess of described upper bearing (metal).
Oil return through-hole of the present utility model is arranged at the cylinder screw hole side outside the scope is set.
Oil extraction outlet of the present utility model is for being arranged at the deep gouge from the inside processing of described lower bearing outward edge on the described lower bearing upper surface, and the opening of described deep gouge is positioned on the outer rim of lower bearing, and an end of deep gouge is positioned at described drainback passage below.
As known from the above, the utility model is by offering an oil return through-hole in the lower valve seat groove in upper flange position, at cylinder drainback passage is set, the oil extraction outlet is set in the upper-end surface of lower flange, oil return through-hole, drainback passage and oil extraction outlet have formed a cover return line in the pump housing, make the refrigeration oil that amasss in the valve seat groove can in time be back to the oil sump of housing lower end, the utility model draws back pressure contracting machine oil pond by return line with refrigeration oil, can reach the effect that reduces compressor oil drainage amount, improve compressor performance.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of upper flange of the present utility model;
Fig. 3 is the structural representation of lower flange of the present utility model.
Below in conjunction with accompanying drawing embodiment of the present utility model is described in more detail.
Embodiment
Such as Fig. 1, Fig. 2 and shown in Figure 3, the compression pump housing of the present utility model comprises cylinder 1, upper flange 2, lower flange 3, eccentric roller 4, upper silencer cover 5, lower silencer cover 6.The pump housing is installed in bottom in the compressor case, is positioned at the rotor below.Upper flange 2 and lower flange 3 snugly fit into the up and down both sides of cylinder 1, cylinder 1, upper flange 2, lower flange 3 coaxial settings, and the rotating shaft 100 that the upper end is arranged in the rotor runs through upper flange 2, cylinder 1 and lower flange 3.Be provided with eccentric roller 4 in cylinder 1, eccentric roller 4 is fixedly mounted in the rotating shaft 100, rotates with rotor under the drive of rotating shaft 100.At upper flange 2 upper surfaces silencer cover 5 is installed, lower silencer cover 6 is installed in the bottom of lower flange 3, the pneumatic noise that silencer cover produces when being used for reducing high pressure gas.
Upper surface at upper flange 2 is provided with valve seat groove a, offers exhaust port b in valve seat groove a, is processed with oil return through-hole c at valve seat groove a inner vent b side.Be processed with the drainback passage d that runs through cylinder 1 at cylinder 1, drainback passage d and oil return through-hole c in the vertical direction align, and drainback passage d is communicated with valve seat groove a by oil return through-hole c.Upper surface at lower flange 3 is processed with oil extraction outlet e, and drainback passage d below, in the vertical direction that oil extraction outlet e is positioned at cylinder 1 align with drainback passage d, and refrigeration oil can flow to oil extraction outlet e from valve seat groove a.The oil extraction outlet e of present embodiment is the semi open model deep gouge of inwardly processing from lower flange 3 outward edges, and the opening of this deep gouge one end is positioned on the outer rim of lower flange 3, and refrigeration oil can flow out from the opening of flange periphery, and the other end of deep gouge is positioned at drainback passage d below.Because valve seat groove a is in lower with respect to bearing 2 upper surfaces, refrigeration oil can be gathered in the valve seat groove a, then flow out valve seat groove a through the drainback passage d on oil return through-hole c and the cylinder 1, discharge from lower flange 3 via oil extraction outlet e again, be back in the oil sump of outer casing bottom, after refrigeration oil refluxes, can avoid at upper flange 2 long-pending oil, the situation that refrigeration oil is taken away again by the high-speed and high-temperature air-flow can not appear, directly reduce thus the oil drain quantity of the pump housing, raising system heat transfer effect promotes compressor performance.
As preferred technological scheme, oil return through-hole c is arranged at the cylinder screw hole side outside the scope (among Fig. 2, Fig. 3 outside the dotted line A) is set, and the assembling that can not affect between the component so is set, and also avoids simultaneously occurring in the pump housing revealing.For the refrigeration oil that amasss in valve seat groove a is refluxed, oil return through-hole c preferably is arranged on the lowest part of valve seat groove a.
Above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit, although with reference to above-described embodiment the utility model is had been described in detail, those of ordinary skill in the field are to be understood that, still can make amendment or be equal to replacement embodiment of the present utility model, the import of oil return through-hole and drainback passage is joined as described, the outlet of described drainback passage and oil extraction outlet are joined, and drainback passage is a chute or the crooked road that is positioned at cylinder, is not the situation that three as be shown in the examples aligns.Therefore, do not break away from any modification of the utility model spirit and scope or be equal to replacement, it all should be encompassed in the scope of technical solutions of the utility model.
Claims (5)
1. the compression pump housing of a rotary compressor, comprise cylinder, correspondence be installed in cylinder up and down both sides upper bearing (metal) and lower bearing, be arranged on the eccentric roller that is installed in the compressor rotation shaft lower end in the cylinder;
It is characterized in that:
Be provided with oil return through-hole at described upper bearing (metal), be provided with the drainback passage that runs through described cylinder at described cylinder, be provided with the oil extraction outlet at described lower bearing; Described oil return through-hole, drainback passage and oil extraction outlet are connected.
2. the compression pump housing of rotary compressor as claimed in claim 1 is characterized in that: described oil return through-hole, drainback passage and oil extraction outlet in the vertical direction align.
3. the compression pump housing of rotary compressor as claimed in claim 1, it is characterized in that: described oil return through-hole is arranged in the valve seat recess of described upper bearing (metal).
4. such as the compression pump housing of claim 1 or 2 or 3 described rotary compressors, it is characterized in that: described oil return through-hole is arranged at the cylinder screw hole side outside the scope is set.
5. the compression pump housing of rotary compressor as claimed in claim 1, it is characterized in that: described oil extraction outlet is for being arranged at the deep gouge from the inside processing of described lower bearing outward edge on the described lower bearing upper surface, the opening of described deep gouge is positioned on the outer rim of lower bearing, and an end of deep gouge is positioned at described drainback passage below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220400856 CN202851360U (en) | 2012-08-13 | 2012-08-13 | Compression pump body of rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220400856 CN202851360U (en) | 2012-08-13 | 2012-08-13 | Compression pump body of rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202851360U true CN202851360U (en) | 2013-04-03 |
Family
ID=47982567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220400856 Expired - Lifetime CN202851360U (en) | 2012-08-13 | 2012-08-13 | Compression pump body of rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202851360U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373349A (en) * | 2014-11-07 | 2015-02-25 | 广东美芝制冷设备有限公司 | Rotary compressor and pump assembly thereof |
| CN106194743A (en) * | 2014-04-25 | 2016-12-07 | 广东美芝制冷设备有限公司 | Rotary compressor |
| WO2018018880A1 (en) * | 2016-07-29 | 2018-02-01 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotary cylinder piston compressor pump and compressor using same |
| CN107676268A (en) * | 2017-10-10 | 2018-02-09 | 珠海凌达压缩机有限公司 | Flange, pump body and compressor |
| CN110552862A (en) * | 2019-09-30 | 2019-12-10 | 珠海凌达压缩机有限公司 | Bearing oil discharge structure for compressor and compressor |
| US11566619B2 (en) | 2016-07-29 | 2023-01-31 | Gree Green Refrigeration Technology Center Co., Ltd. Of Zhuhai | Rotary cylinder piston compressor pump and compressor with rotary cylinder piston compressor pump |
-
2012
- 2012-08-13 CN CN 201220400856 patent/CN202851360U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194743A (en) * | 2014-04-25 | 2016-12-07 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN104373349A (en) * | 2014-11-07 | 2015-02-25 | 广东美芝制冷设备有限公司 | Rotary compressor and pump assembly thereof |
| WO2018018880A1 (en) * | 2016-07-29 | 2018-02-01 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotary cylinder piston compressor pump and compressor using same |
| US11566619B2 (en) | 2016-07-29 | 2023-01-31 | Gree Green Refrigeration Technology Center Co., Ltd. Of Zhuhai | Rotary cylinder piston compressor pump and compressor with rotary cylinder piston compressor pump |
| CN107676268A (en) * | 2017-10-10 | 2018-02-09 | 珠海凌达压缩机有限公司 | Flange, pump body and compressor |
| CN110552862A (en) * | 2019-09-30 | 2019-12-10 | 珠海凌达压缩机有限公司 | Bearing oil discharge structure for compressor and compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130403 |