CN201281017Y - Rotary compressor with crankshaft supporting mechanism - Google Patents
Rotary compressor with crankshaft supporting mechanism Download PDFInfo
- Publication number
- CN201281017Y CN201281017Y CNU2008202001066U CN200820200106U CN201281017Y CN 201281017 Y CN201281017 Y CN 201281017Y CN U2008202001066 U CNU2008202001066 U CN U2008202001066U CN 200820200106 U CN200820200106 U CN 200820200106U CN 201281017 Y CN201281017 Y CN 201281017Y
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- CN
- China
- Prior art keywords
- bent axle
- supporting mechanism
- rotary compressor
- crankshaft
- sheet structure
- 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
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Abstract
The utility model relates to a rotary compressor which is provided with an electric motor rotor controlling mechanism, aiming at solving the problem that the crankshaft flexibility is high, the eccentricity ratio of the rotor is high when the rotary compressor is operated; the rotary compressor comprises a shell, an electric motor, a crankshaft, an air cylinder, an upper flange, a lower flange, a roller and a slip sheet; the electric motor is arranged in the shell, the crankshaft is fixed with the rotor, and the long shaft of the crankshaft penetrates through the electric motor rotor and is arranged at the upper end of the electric motor, and the other end of the crankshaft is connected with the roller in the air cylinder; the rotary compressor further comprises a crankshaft supporting mechanism which is arranged at the upper end of the electric motor in the shell; the supporting mechanism is provided with a connecting part which is fixedly connected with the inner wall of the shell, a supporting hole which is matched with the end part of the long shaft end of the crankshaft, and an opening hole for venting and electric motor wiring. In the utility model, the crankshaft supporting mechanism is fixedly connected with the shell, and a supporting hole on the supporting mechanism is matched with the long shaft end of the crankshaft, thus leading the two ends of the crankshaft to be supported and limited and effectively reducing the crankshaft flexibility and the eccentricity ratio of the electric motor rotor.
Description
Technical field
The utility model relates to rotary compressor, more particularly, relates to a kind of rotary compressor that can reduce bent axle amount of deflection and rotor eccentricity rate.
Background technique
Shown in Figure 1 is a kind of existing rotary compressor, is made up of major parts such as housing 11, motor (comprising stator 15 and rotor 16), bent axle 17, cylinder 12, roller 18, slide plate (not shown), upper flange 13, lower flanges 14.Cylinder 12 upper/lower terminals form an active chamber by upper flange 13, lower flange 14 sealings in cylinder 12.Roller 18 is arranged in the active chamber, forms a meniscate volume space with cylinder 12.Slide plate is installed in the vane slot of offering on the cylinder wall, and by the active force of spring the end of slide plate is closely contacted with roller, and the crescent shape volume space is divided into two-part, offers intakeport and relief opening on the cylinder wall of vane slot both sides respectively.Motor is arranged in the housing, and bent axle 17 is fixed with rotor, and the longitudinal end 171 of bent axle 17 is passed rotor 16 and is positioned at motor on, and the other end of bent axle 17 and cylinder 12 interior rollers 18 are connected.During motor rotation, roller 18 is rolled along cylinder inner wall by bent axle 17 drivings prejudicially, corner variation along with roller 18, the size of described volume space changes synchronously, the pressure of gas also changes thereupon in the volume space, thus---compression---work cycle of exhaust of finishing the air-breathing of compressor refrigerant.
Yet, support the upper flange 13 of bent axle 17 in the above-mentioned existing rotary compressor, lower flange 14 all is the same survey at rotor 16, make the bent axle longitudinal end 171 that connects with rotor be in the overhang state, because there is the gap in the assembling that rotor 16 and stator are 15, so when bent axle 17 is subjected to influencing of the influence of disequilibrium and electromagnet pull square, make that the amount of deflection of bent axle 17 longitudinal end 171 is big, the eccentricity height of rotor 16, particularly for rotor long powerful rotary compressor and the variable-frequency type rotary compressor that needs to realize high frequency running and low frequency running, the eccentricity of rotor operation is bigger, the amount of deflection of bent axle is bigger, directly has influence on the reliability of compressor.
The model utility content
The problem that the bent axle amount of deflection was big when the utility model was intended to solve the rotary compressor running, the rotor eccentricity rate is high, the reliability of raising compressor.
Above-mentioned purpose is achieved through the following technical solutions:
A kind of rotary compressor with bent axle supporting mechanism, comprise housing, motor, bent axle, cylinder, upper flange, lower flange, roller, slide plate, motor is arranged in the housing, bent axle and rotor are fixed, its longitudinal end is passed rotor and is positioned on the motor, and the roller in the other end of bent axle and the cylinder is connected; It is characterized in that, also comprise a bent axle supporting mechanism, be arranged on the upper end of motor in the housing, this supporting mechanism has the joint fixedly connected with inner walls, the supported hole that cooperates with bent axle major axis end and is used to ventilate and the perforate of windings in motor.
In the utility model, the bent axle supporting mechanism is fixedlyed connected with housing, the supported hole that provides on it cooperates with the major axis end of bent axle, make the two ends of bent axle all be supported and limit, thereby reduced the eccentricity of bent axle winding degree and rotor effectively, its beneficial effect especially is embodied in the long powerful rotary compressor of rotor and needs and realizes in the variable-frequency type rotary compressor of high frequency running and low frequency running.
Description of drawings
Fig. 1 is a kind of sectional view of existing rotary compressor;
The internal structure schematic representation of the rotary compressor that Fig. 2 provides for the utility model with bent axle supporting mechanism;
Fig. 3 is the schematic representation of a kind of mode of execution of bent axle supporting mechanism in the utility model;
Fig. 4 is the schematic representation of the another kind of mode of execution of bent axle supporting mechanism in the utility model.
Description of reference numerals is as follows: 11. housings, 12. cylinders, 13. upper flanges, 14. lower flanges, 15. motor stators, 16. rotor, 17. bent axle, 171. bent axle longitudinal end, 18. rollers, 20. bent axle supporting mechanisms, 21. joints, 22. supported holes, 23. perforates, 25. bearings.
Embodiment
As shown in Figure 2, the rotary compressor with bent axle supporting mechanism that the utility model provides comprises: housing 11, motor (comprising motor stator 15 and rotor 16), bent axle 17, cylinder 12, upper flange 13, lower flange 14, roller 18, slide plate (not shown) etc., above-mentioned device itself and the setting in compressor thereof and annexation belong to prior art, repeat no more herein.
Below the main creation point of the present utility model place of describing, as Fig. 2, whole motor is arranged in the housing 11, bent axle 17 is fixing with rotor 16, the longitudinal end 171 of bent axle 17 is passed rotor 16 and is positioned on the motor, roller 18 in the other end of bent axle 17 and the cylinder 12 is connected, the upper end of motor also is provided with a bent axle supporting mechanism 20 in housing 11, and this bent axle supporting mechanism 20 has the joint 21 of fixedlying connected with housing 11 inwalls, the supported hole 22 that the described rotor the other end 162 cooperates, and be used to ventilate and the perforate 23 (in conjunction with Fig. 3) of windings in motor.
As shown in Figure 3, described bent axle supporting mechanism 20 can for the sheet structure of housing 11 inner chamber cross sections identical shaped (be generally circular), the edge part of this sheet structure is the joint 21 of fixedlying connected with housing 11 inwalls, the central authorities of sheet structure directly offer described supported hole 22, sheet structure is in the central and between the edge, offer three (can be several) independently perforates 23, be used for ventilation and windings in motor, can also save material.Wherein, for make edge part and housing 11 be connected and supported hole 22 more reliable with cooperating of bent axle longitudinal end 171, edge part that described sheet structure is fixedlyed connected with housing 11 inwalls and sheet structure are being offered the position thickening (referring to Fig. 2) of supported hole 22.
Figure 4 shows that the schematic representation of the another kind of mode of execution of bent axle supporting mechanism 20 in the utility model, the difference of this bent axle supporting mechanism and structure shown in Figure 3 is: the central authorities of sheet structure are provided with a bearing 25 earlier, described supported hole 22 is provided by this bearing 25, and this mode can suitably reduce friction.In like manner, the described sheet structure edge part thickening of fixedlying connected with housing 11 inwalls; Similarly, sheet structure is being arranged on the position thickening of bearing 25.
The foregoing description is only for the unrestricted the utility model of explanation, and based on the foregoing description, some other mode of execution expects that easily for example, described supported hole can be substituted by the non-penetrating groove that is arranged on same position fully; The joint that is used for being connected with inner walls can not be the edge part of sealing, also can be the some discrete fixed strip that is connected with the central part of offering supported hole etc.The foregoing description only is described in the application in the single cylinder rotary compressor, if adopt this mode of structure to use in twin-tub or multi-cylinder rotary compressor, also is the row at protection domain of the present utility model.
Claims (6)
1. rotary compressor with bent axle supporting mechanism, comprise housing, motor, bent axle, cylinder, upper flange, lower flange, roller, slide plate, motor is arranged in the housing, bent axle and rotor are fixed, its longitudinal end is passed rotor and is positioned on the motor, and the roller in the other end of bent axle and the cylinder is connected; It is characterized in that, also comprise a bent axle supporting mechanism, be arranged on the upper end of motor in the housing, this supporting mechanism has the joint fixedly connected with inner walls, the supported hole that cooperates with bent axle major axis end and is used to ventilate and the perforate of windings in motor.
2. the rotary compressor with bent axle supporting mechanism according to claim 1, it is characterized in that, described bent axle supporting mechanism is and the identical shaped sheet structure of housing inner chamber cross section, the edge part of sheet structure is the joint of fixedlying connected with inner walls, and the central authorities of sheet structure directly offer described supported hole.
3. the rotary compressor with bent axle supporting mechanism according to claim 2 is characterized in that, described sheet structure is being offered the position thickening of supported hole.
4. the rotary compressor with bent axle supporting mechanism according to claim 1, it is characterized in that, described bent axle supporting mechanism is and the identical shaped sheet structure of housing inner chamber cross section, the edge part of sheet structure is the joint of fixedlying connected with inner walls, the central authorities of sheet structure are provided with a bearing, and described supported hole is provided by this bearing.
5. the rotary compressor with bent axle supporting mechanism according to claim 4 is characterized in that, described sheet structure is being provided with the position thickening of bearing.
6. according to any described rotary compressor of claim 2 to 5, it is characterized in that the edge part thickening that described sheet structure is fixedlyed connected with inner walls with bent axle supporting mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202001066U CN201281017Y (en) | 2008-09-05 | 2008-09-05 | Rotary compressor with crankshaft supporting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202001066U CN201281017Y (en) | 2008-09-05 | 2008-09-05 | Rotary compressor with crankshaft supporting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201281017Y true CN201281017Y (en) | 2009-07-29 |
Family
ID=40927891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202001066U Expired - Lifetime CN201281017Y (en) | 2008-09-05 | 2008-09-05 | Rotary compressor with crankshaft supporting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201281017Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075345A (en) * | 2011-10-25 | 2013-05-01 | 珠海格力节能环保制冷技术研究中心有限公司 | Rolling rotor compressor |
| CN104165142A (en) * | 2014-08-01 | 2014-11-26 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN105156328A (en) * | 2015-09-28 | 2015-12-16 | 上海日立电器有限公司 | Rotary compressor |
| CN105604947A (en) * | 2016-03-10 | 2016-05-25 | 广东美芝制冷设备有限公司 | Rotary compressor |
-
2008
- 2008-09-05 CN CNU2008202001066U patent/CN201281017Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075345A (en) * | 2011-10-25 | 2013-05-01 | 珠海格力节能环保制冷技术研究中心有限公司 | Rolling rotor compressor |
| CN104165142A (en) * | 2014-08-01 | 2014-11-26 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN105156328A (en) * | 2015-09-28 | 2015-12-16 | 上海日立电器有限公司 | Rotary compressor |
| CN105604947A (en) * | 2016-03-10 | 2016-05-25 | 广东美芝制冷设备有限公司 | Rotary 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: 20090729 |