CN203670214U - Oil separation device for rotary compressor and rotary compressor with oil separation device - Google Patents
Oil separation device for rotary compressor and rotary compressor with oil separation device Download PDFInfo
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- CN203670214U CN203670214U CN201320856169.8U CN201320856169U CN203670214U CN 203670214 U CN203670214 U CN 203670214U CN 201320856169 U CN201320856169 U CN 201320856169U CN 203670214 U CN203670214 U CN 203670214U
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- separation part
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Abstract
The utility model discloses an oil separation device for a rotary compressor and the rotary compressor with the oil separation device. The compressor comprises a shell assembly, a motor stator, a motor rotor and a crankshaft. The oil separation device comprises a first oil separation component, wherein the first oil separation component is mounted at the top of the motor rotor or the extension part, extending out of the motor rotor, of the crankshaft, and comprises a first fixed part connected with the top of the motor rotor or the extension part, a first annular oil separation part connected with the first fixed part and arranged in the radius direction of the crankshaft, and a second cylindrical oil separation part upwards extending from the outer edge of the first oil separation part and in the axial direction of the crankshaft. The oil separation device is high in oil separation efficiency, and an efficient oil separation effect under the conditions of large discharge capacity and high frequency is achieved; moreover, the first and second oil separation parts are rotating bodies, so that the rotating resistance is low, and influence on the power consumption of the compressor is small.
Description
Technical field
The utility model relates to compressor, particularly relates to a kind of oil separation device of rotary compressor and has the rotary compressor of this device.
Background technique
In rotary compressor, the Main Function of refrigerator oil be lubricate, sealing etc.When compressor operation, can the refrigeration oil of bottom be supplied to each friction pair by crankshaft center oilhole, guarantee the lubricated of compressor, prevent the wearing and tearing of Parts of Compressor, but refrigerator oil also can be dissolved in the refrigeration agent in compressor simultaneously.Particularly frequency-changeable compressor is in the time that high frequency moves, and because exhaust flow rate is larger, refrigeration oil is very easily discharged compressor along with exhaust from outlet pipe, and the consequence causing is like this that the inner oil starvation of compressor causes lack of lubrication, and parts wear, reduces compressor reliability.Meanwhile, too much refrigerator oil enters air-conditioning system, and refrigerator oil can be attached on heat exchanger, causes its exchange capability of heat to reduce, and reduces the efficiency of air-conditioning.
There is a large amount of refrigerator oils compressor bottom in addition, and when compressor operating, each friction pair that refrigerator oil is supplied to pump assembly by the pump-absorb action of bent axle by refrigerator oil is lubricated, and guarantees the reliability of compressor.But refrigeration agent and the refrigerator oil of in cylinder, discharging dissolve each other simultaneously, after refrigerator oil meeting and refrigerant mixed, be discharged to the upper cavity of stator by motor passage, like this along with the rising of operation frequency, the increasing of discharge capacity, a large amount of refrigerator oils are discharged compressor with refrigeration agent, and the inner refrigerator oil of compressor reduces, and liquid level reduces, the lubricated of each friction pair cannot guarantee, compressor reliability can sharply reduce even and cannot work.So inner compressor refrigerator oil is separated before discharge compressor with refrigeration agent, guarantees that the oil reserve of compressor inside is most important to the reliability of compressor.
At present conventionally at the inner oil separating device that increases of compressor, with the eliminating of freezing-inhibiting oil.Existing oil separating device is generally the flat board or the flange shape oil separating device that are arranged on compressor rotor top, this kind of oil separating device oil inferior separating effect, particularly along with the situations such as the rising of compressor operating frequency, discharge capacity increasing, DeGrain; And rotational resistance is excessive, compressor power consumption is high, and efficiency declines, and when especially high frequency moves, efficiency reduces obviously.
Summary of the invention
For above-mentioned prior art present situation, technical problem to be solved in the utility model is, a kind of oil separation device of rotary compressor is provided, and it can realize efficient oily separating effect under large discharge capacity, high frequency, and power consumption is little, little on compressor performance impact.Another technical problem to be solved in the utility model is, a kind of rotary compressor with this oil separating device is provided.
In order to solve the problems of the technologies described above, a kind of oil separation device of rotary compressor provided by the utility model, described compressor comprises frame set, motor stator, rotor and bent axle, the top of described frame set is provided with outlet pipe, described motor stator is fixed in described frame set, described rotor is fixed on described bent axle, and be placed in the endoporus of described motor stator, described oil separating device comprises the first oil separation member, this first oil separation member is installed on described rotor top or described bent axle stretches out on the extension of described rotor, described the first oil separation member comprises the first fixing part being connected with described rotor top or described extension, circular the first oil separation part arranging along described crank throw direction being connected with this first fixing part and certainly this first oil separation part outer rim are along described Crankshaft to upwardly extending cylindric the second oil separation part.
Therein in an embodiment, described oil separation part also comprises tubular the 3rd oil separation part, the diameter of described the 3rd oil separation part axially broadens from the lower to the upper gradually along described bent axle, and described the 3rd oil separation part lower end is connected with described the first fixing part, and upper end is connected with the inner edge portion of described the first oil separation part.
In an embodiment, the external diameter of described the second oil separation part is D1 therein, and the external diameter of described rotor is D0, and D1=0.5～0.8D0.
In an embodiment, the height of described the second oil separation part is H1 therein, and the external diameter of described the first oil separation part is D1, and H1=0.1～0.4D1.
In an embodiment, the distance of the upper-end surface of described the first oil separation part and described motor stator winding upper end is L1, and L1=-5mm～30mm therein.
In an embodiment, the distance between the upper-end surface of described the first oil separation part and the mouth of pipe of described outlet pipe in described frame set is L2, and L2=-10mm～20mm therein.
In an embodiment, on described the first fixing part, be provided with the first through hole therein, the described extension of this first through hole and described bent axle closely cooperates.
Therein in an embodiment, described oil separating device also comprises the second oil separation member being arranged between described the first oil separation member and described rotor top, and this second oil separation member comprises the second fixing part being connected with described rotor top or described extension and circular the 4th oil separation part that this second fixing part arranges along described crank throw direction certainly.
In an embodiment, described the 4th oil separation part radial outer end rolls tiltedly towards described rotor with respect to its radial inner end therein.
In an embodiment, the angle between described the 4th oil separation part and the axis of described bent axle is θ therein, and θ=70 °～90 °.
In an embodiment, the distance between described the 4th oil separation part outer rim and described rotor top is L3, and L3=5mm-30mm therein.
In an embodiment, on described the second fixing part, be provided with the second through hole therein, the described extension of this second through hole and described bent axle closely cooperates.
In an embodiment, described rotor is provided with by described crankshaft side the rotor opening running through vertically therein, and described motor stator is provided with by described frame set side surface side the stator opening running through vertically.
A kind of rotary compressor provided by the utility model, comprises above-mentioned oil separating device.
Oil separation device of rotary compressor of the present utility model, because the first oil separation member has circular the first oil separation part and cylindric the second oil separation part, the first oil separation part and the second oil separation part are rotated with crankshaft high-speed, in the time that the mixture of refrigeration agent and refrigerator oil passes through this first oil separation member, this part mixture is rotated to centrifugation, because of oily density large, oil is thrown toward radially shell wall side and winding, and be deposited on the space between winding and housing, finally be back to compressor bottom from the passage between stator runner and stator and shell wall side, and the refrigeration agent of oil after separated discharged from outlet pipe, thereby reach the object that refrigeration oil and refrigeration agent are separated.This oil separating device oil separation effect is high, has realized under large discharge capacity, high frequency and has realized efficient oily separating effect; And because the first oil separation part and the second oil separation part are solid of rotation, rotational resistance is little, little on the impact of compressor power consumption.
Accompanying drawing explanation
Fig. 1 is the longitudinal sectional view of the rotary compressor with oil separating device in one of them embodiment of the utility model;
Fig. 2 is the partial schematic diagram of the rotary compressor in Fig. 1;
Fig. 3 and Fig. 4 are the structural representation of the first oil separation member of the oil separating device of the rotary compressor in Fig. 1, and wherein, Fig. 3 is plan view, and Fig. 4 is plan view;
Fig. 5 and Fig. 6 are the structural representation of the second oil separation member of the oil separating device of the rotary compressor in Fig. 1, and wherein, Fig. 5 is plan view, and Fig. 6 is plan view;
Fig. 7 is that the oil of the oil separating device of the rotary compressor in Fig. 1 separates schematic diagram.
Description of reference numerals: 1, outlet pipe; 2, cover assembly; 3, the first oil separation member; 3a, the first oil separation part; 3b, the second oil separation part; 3c, the 3rd oil separation part; 3d, the first fixing part; 3e, the first through hole; 4, the second oil separation member; 4a, the 4th oil separation part; 4b, the second fixing part; 4c, the second through hole; 5, staor winding; 6, rotor; 6a, rotor opening; 7, motor stator; 7a, stator opening; 8, bent axle; 8a, extension; 9, upper bearing (metal); 10, upper cylinder; 11, lower cylinder; 12, lower bearing; 13, refrigerator oil; 14, frame set; 15, liquor separator parts; 16, intermediate clapboard; 17, upper roller; 18, lower roller; 19, lower cover; 20, mounting base; 21, air gap between stator and rotor.
Embodiment
Also the utility model is elaborated below with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, in the situation that not conflicting, the feature in following embodiment and embodiment can combine mutually.
Fig. 1 and the structural representation that Figure 2 shows that the rotary compressor with the oil separating device in one of them embodiment of the utility model.Rotary compressor comprises frame set 14, motor stator 7, rotor 6, pump assembly and oil separating device, on the cover assembly 2 of described frame set 14, be provided with outlet pipe 1, described motor stator 7 is fixed in described frame set 14, described motor stator 7 is provided with by described frame set 14 side surface sides the stator opening 7a running through vertically, described rotor 6 is fixed on the bent axle 8 of pump assembly, and being placed in motor stator 7 endoporus, described rotor 6 has rotor opening 6a by bent axle 8 sides.Described pump assembly is fixedly welded on frame set 14, and pump assembly comprises upper bearing (metal) 9, lower bearing 12 and bent axle 8, is provided with upper cylinder 10 and lower cylinder 11 between upper bearing (metal) 9 and lower bearing 12, and upper cylinder 10 and lower cylinder 11 use intermediate clapboards 16 separate.In upper cylinder 10 and lower cylinder 11, be separately installed with roller 17 and lower roller 18, upper roller 17 and lower roller 18 are placed on respectively the eccentric part up and down of bent axle 8.Have liquor separator parts 15 in frame set 14 outer installment, 15 liang of bend pipes of liquor separator parts are connected with the intakeport of lower cylinder 11 with upper cylinder 10.In frame set 14 bottoms, lower cover 19 and mounting base 20 are installed, top is provided with cover assembly 2, forms like this airtight cavity.When compressor operating, suck refrigeration agent from liquor separator parts 15, refrigeration agent enters in cylinder and compresses, high-pressure refrigerant after compression enters in housing chamber, and enter motor upper cavity by the air gap 21 between motor stator and rotor, stator opening 7a and rotor opening 6a, refrigeration agent is finally discharged compressor from upper cover outlet pipe 1, enters air-conditioning system.
Described oil separating device is for separating refrigerator oil with refrigeration agent.As depicted in figs. 1 and 2, oil separating device in the present embodiment comprises the first oil separation member 3, top or described bent axle 8 that this first oil separation member 3 is installed on described rotor 6 stretch out on the extension 8a of described rotor 6, in order to play strong oily separating effect, in the present embodiment, the first oil separation member 3 is installed on described extension 8a.As shown in Figure 3 and Figure 4, described the first oil separation member 3 comprise the first fixing part 3d of being connected with the described extension 8a of described bent axle 8, circular the first oil separation part 3a arranging along described bent axle 8 radial directions being connected with this first fixing part 3d and certainly this first oil separation part 3a outer rim along the axial upwardly extending cylindric second oil separation part 3b of described bent axle 8, on described fixing part, be provided with the first through hole 3e, the described extension 8a of this first through hole 3e and described bent axle 8 closely cooperates, and makes the first oil separation member 3 and bent axle 8 synchronous rotaries.More preferably, described oil separation part also comprises the 3rd oil separation part 3c being arranged between described the first oil separation part 3a and described fixing part, the diameter of the 3rd oil separation part 3c axially broadens from the lower to the upper gradually along described bent axle 8, the lower end of the 3rd oil separation part 3c is connected with described the first fixing part 3d, and upper end is connected with the inner edge portion of described the first oil separation part 3a.Certainly, the first oil separation member 3 also can no third oil separation part 3c, and the first oil separation part 3a is directly connected with the first fixing part 3d.
More preferably, the external diameter of described the second oil separation part 3b is D1, and the external diameter of described rotor 6 is D0, and D1=0.5～0.8D0.More preferably, the height of described the second oil separation part 3b is H1, and the external diameter of described the first oil separation part 3a is D1, and H1=0.1～0.4D1.More preferably, the distance of the upper-end surface of described the first oil separation part 3a and described motor stator winding 5 upper ends is L1, and L1=-5mm～30mm.More preferably, the distance between the upper-end surface of described the first oil separation part 3a and described outlet pipe 1 mouth of pipe in described frame set 14 is L2, and L2=-10mm～20mm.Know according to experimental study, the value of D1, H1, L1 and L2 can play best oily separating effect in above-mentioned scope.
Preferably, in order to increase oily separating effect, described oil separating device also comprises the second oil separation member 4 being arranged between described the first oil separation member 3 and described rotor 6 tops, as shown in Figure 5 and Figure 6, described the second oil separation member 4 comprises the second fixing part 4b being connected with described rotor 6 tops or described extension 8a and circular the 4th oil separation part 4a that this second fixing part 4b arranges along described bent axle 8 radial directions certainly.In the present embodiment, the second oil separation member 4 is installed on described extension 8a, on described the second fixing part 4b, be provided with the second through hole 4c, the described extension 8a of this second through hole 4c and described bent axle 8 closely cooperates, and makes the second oil separation member 4 with bent axle 8 synchronous rotaries.Described the 4th oil separation part 4a radial outer end rolls tiltedly towards described rotor 6 with respect to its radial inner end.Further, the angle between described the 4th oil separation part 4a and the axis of described bent axle 8 is θ, and θ=70 °～90 °.Further, the distance between described the 4th oil separation part 4a outer rim and described rotor 6 tops is L3, and L3=5mm-30mm (seeing Fig. 1).
The oil that Figure 7 shows that the oil separating device of the present embodiment separates schematic diagram.Refrigeration agent is from cylinder has compressed discharge, mix with the refrigerator oil 13 of compressor inside, axially up arrange by the rotor opening 6a of the gap between opening 7a, motor stator 7 and the frame set 14 of the gap 21 between motor stator 7 and rotor 6, motor stator 7 and rotor 6 inside.Rotor opening 6a is main circulation passage.The mixture of refrigeration agent and refrigerator oil 13 is stopped by the second oil separation member 4 with bent axle 8 High Rotation Speeds from rotor opening 6a discharges, carry out oil and the separating of refrigeration agent, the footpath that is simultaneously drained to motor by pressure is collided backward staor winding 5 and is again separated.By not completing the oil of separation and the continuation of the mixture of a refrigeration agent part after the second oil separation member 4 toward axial flow, and the first oil separation member 3 is with the High Rotation Speed of bent axle 8, this part mixture is rotated to centrifugation again, because of oily density large, oil is thrown toward radially frame set 14 walls and staor winding 5, and be deposited on the space between staor winding 5 and frame set 14, finally be back to compressor bottom from the passage between stator opening 7a and motor stator 7 and frame set 14 walls of motor stator 7, and the refrigeration agent of oil after separated discharged from outlet pipe 1.
Oil recycle ratio with respect to the compressor without oil separating device structure more than 2%, the oil separating device in the present embodiment can be reduced to oil recycle ratio below 0.5%, and effect is very obvious.Both guarantee the reliability of compressor, and also can effectively improve the performance of coupling air-conditioning system simultaneously.
The utility model also provides a kind of rotary compressor, and it comprises above-mentioned oil separating device.Compressor is owing to having adopted above-mentioned oil separating device, and it can realize efficient oily separating effect under large discharge capacity, high frequency, and power consumption is little, little on compressor performance impact.
The above embodiment has only expressed several mode of execution of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (14)
1. an oil separation device of rotary compressor, described compressor comprises frame set, motor stator, rotor and bent axle, the top of described frame set is provided with outlet pipe, described motor stator is fixed in described frame set, described rotor is fixed on described bent axle, and be placed in the endoporus of described motor stator, described oil separating device comprises the first oil separation member, this first oil separation member is installed on described rotor top or described bent axle stretches out on the extension of described rotor, it is characterized in that, described the first oil separation member comprises the first fixing part being connected with described rotor top or described extension, circular the first oil separation part arranging along described crank throw direction being connected with this first fixing part and certainly this first oil separation part outer rim are along described Crankshaft to upwardly extending cylindric the second oil separation part.
2. oil separation device of rotary compressor according to claim 1, it is characterized in that, described oil separation part also comprises tubular the 3rd oil separation part, the diameter of described the 3rd oil separation part axially broadens from the lower to the upper gradually along described bent axle, and described the 3rd oil separation part lower end is connected with described the first fixing part, and upper end is connected with the inner edge portion of described the first oil separation part.
3. oil separation device of rotary compressor according to claim 1 and 2, is characterized in that, the external diameter of described the second oil separation part is D1, and the external diameter of described rotor is D0, and D1=0.5～0.8D0.
4. oil separation device of rotary compressor according to claim 1 and 2, is characterized in that, the height of described the second oil separation part is H1, and the external diameter of described the first oil separation part is D1, and H1=0.1～0.4D1.
5. oil separation device of rotary compressor according to claim 1 and 2, is characterized in that, the distance of the upper-end surface of described the first oil separation part and described motor stator winding upper end is L1, and L1=-5mm～30mm.
6. oil separation device of rotary compressor according to claim 1 and 2, is characterized in that, the distance between the upper-end surface of described the first oil separation part and the mouth of pipe of described outlet pipe in described frame set is L2, and L2=-10mm～20mm.
7. oil separation device of rotary compressor according to claim 1 and 2, is characterized in that, on described the first fixing part, is provided with the first through hole, and the described extension of this first through hole and described bent axle closely cooperates.
8. oil separation device of rotary compressor according to claim 1, it is characterized in that, described oil separating device also comprises the second oil separation member being arranged between described the first oil separation member and described rotor top, and this second oil separation member comprises the second fixing part being connected with described rotor top or described extension and circular the 4th oil separation part that this second fixing part arranges along described crank throw direction certainly.
9. oil separation device of rotary compressor according to claim 8, is characterized in that, described the 4th oil separation part radial outer end rolls tiltedly towards described rotor with respect to its radial inner end.
10. oil separation device of rotary compressor according to claim 9, is characterized in that, the angle between described the 4th oil separation part and the axis of described bent axle is θ, and θ=70 °～90 °.
11. oil separation device of rotary compressors according to claim 9, is characterized in that, the distance between described the 4th oil separation part outer rim and described rotor top is L3, and L3=5mm-30mm.
12. oil separation device of rotary compressors according to claim 8, is characterized in that, on described the second fixing part, are provided with the second through hole, and the described extension of this second through hole and described bent axle closely cooperates.
13. according to the oil separation device of rotary compressor described in claim 1 or 8, it is characterized in that, described rotor is provided with by described crankshaft side the rotor opening running through vertically, and described motor stator is provided with by described frame set side surface side the stator opening running through vertically.
14. 1 kinds of rotary compressors, is characterized in that, comprise the oil separating device as described in any one in claim 1 to 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320856169.8U CN203670214U (en) | 2013-12-23 | 2013-12-23 | Oil separation device for rotary compressor and rotary compressor with oil separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320856169.8U CN203670214U (en) | 2013-12-23 | 2013-12-23 | Oil separation device for rotary compressor and rotary compressor with oil separation device |
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| Publication Number | Publication Date |
|---|---|
| CN203670214U true CN203670214U (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320856169.8U Expired - Fee Related CN203670214U (en) | 2013-12-23 | 2013-12-23 | Oil separation device for rotary compressor and rotary compressor with oil separation device |
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| CN (1) | CN203670214U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728119A (en) * | 2013-12-23 | 2015-06-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotary compressor oil separation device and rotary compressor with same |
-
2013
- 2013-12-23 CN CN201320856169.8U patent/CN203670214U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728119A (en) * | 2013-12-23 | 2015-06-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotary compressor oil separation device and rotary compressor with same |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20211223 |
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| CF01 | Termination of patent right due to non-payment of annual fee |