CN103216416B - compressor and compressor assembly method - Google Patents
compressor and compressor assembly method Download PDFInfo
- Publication number
- CN103216416B CN103216416B CN201210017793.9A CN201210017793A CN103216416B CN 103216416 B CN103216416 B CN 103216416B CN 201210017793 A CN201210017793 A CN 201210017793A CN 103216416 B CN103216416 B CN 103216416B
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- bearing
- align member
- live axle
- compressor
- positioning
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000005057 refrigeration Methods 0.000 claims description 3
- 239000000306 component Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000008358 core component Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
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- Compressor (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Rotary Pumps (AREA)
Abstract
The invention discloses a kind of compressor and compressor assembly method, described compressor comprises: shell, the motor be contained in shell, bearing support, align member and the second bearing, described motor comprises stator, is provided with the frame of clutch shaft bearing, the live axle supported by clutch shaft bearing and the rotor be fixed on live axle, align member is used for positioning the second bearing and being connected with bearing support, second bearing is connected with align member and/or bearing support, and supporting driving shaft.The present invention can avoid the rotor of motor and the weight of live axle and/or the magnetic force between stator and rotor for the impact of the location of bearing and live axle, improves positioning precision and efficiency of assembling.
Description
Technical field
The present invention relates to a kind of compressor and compressor assembly method, be particularly useful for the compressor adopting permanent magnet motor.
Background technique
Compressor can as the core component of chiller plant, and the Performance And Reliability of compressor has conclusive impact for the working efficiency of chiller plant and stability.And the Performance And Reliability of compressor depends on its precision of assembling to a great extent.At present, conventional compressor has motor, and motor comprises stator, live axle and fixing rotor on the driving shaft.And live axle can, by two bearings, make it can rotate around the spin axis of live axle.In assembly process, positioned coaxial must be carried out to these two bearings, otherwise compressor is difficult to obtain the Performance And Reliability expected.
In the prior art, usually first fix a bearing, then locate relative to last bearing after another bearing is installed on live axle.Because last bearing is fixed, so, can only by realizing a rear bearing adjustment to the coaxial positioning of two bearings.But in this case, live axle is provided with rotor, thus after adjustment, a bearing needs to overcome the gravity of live axle and rotor and/or the magnetic force between stator and rotor carries out.So need very large power to realize the same axial adjustment of these two bearings.Which results in location difficulty, and cause location efficiency low and easily occur positioning error.
For this reason, need to provide a kind of compressor that can easily and accurately position bearing and live axle and assembly method thereof.
Summary of the invention
An object of the present invention is to provide a kind ofly can eliminate the rotor of motor and the weight of live axle and/or the magnetic force between stator and the rotor compressor for the interference of the location of bearing and live axle.
The present invention also aims to provide a kind of and can eliminate the rotor of motor and the weight of live axle and/or the magnetic force between stator and the rotor compressor assembly method for the interference of the location of bearing and live axle.
In order to realize foregoing invention object, technological scheme of the present invention realizes in the following manner:
According to an aspect of the present invention, a kind of compressor is provided, comprises:
Shell, the two ends of described shell are closed by cap and base respectively;
Motor, described motor holds in the housing, and described motor comprises:
Stator, described stator has fixing position relative to described shell,
Frame, described frame is connected with described shell and is provided with clutch shaft bearing;
Live axle, one end of described live axle is supported by described clutch shaft bearing; With
Rotor, described rotor is fixed on described live axle, and can relative to described stator rotation;
Bearing support, described bearing support is fixedly connected with described shell or is integrally formed;
Second bearing, live axle described in described second bearings; And
Align member, described align member is used for positioning the second bearing and being connected with described bearing support, and described second bearing is connected with described align member and/or described bearing support.
Further, described align member can with described clutch shaft bearing for benchmark positions, and it can carry out independent of described live axle and described second bearing with the location that described clutch shaft bearing is benchmark.
Further, described align member can have the positioning surface for matching with the second bearing.
Again further, described align member can have positioning hole, and described positioning surface can be the internal surface of described positioning hole, and it matches with the outer surface of described second bearing.
Again further, the aperture of described positioning hole can be greater than the diameter of live axle.
Again further, the internal surface of described positioning hole can be provided with the chamfering for guiding the second bearing to insert, and the outer surface of the second bearing can have chamfering.
Again further, the internal surface of described positioning hole can be periphery or conical surface.
Particularly, described align member can be positioning ring.
Particularly, described clutch shaft bearing and described second bearing can be coaxial.
Particularly, described second bearing can be thrust bearing or comprise thrust bearing, and described thrust bearing is vertical with the spin axis of described live axle.
Particularly, the periphery of described stator can be provided with flange, with the inwall of described shell, described flange is connected that stator is fixed on described shell.
Particularly, described compressor can be permanent magnet motor refrigeration compressor.
According to a further aspect in the invention, a kind of compressor assembly method is provided, comprises step:
A () provides shell, bearing support, align member, the frame of the second bearing and motor, stator, live axle and rotor;
B the stator of motor and frame are fixedly mounted in shell by (), be provided with clutch shaft bearing in described frame;
C one end of live axle is assembled in described clutch shaft bearing by (), and be fixed on live axle by rotor;
D bearing support is fixedly connected with shell by (); With
E () is that benchmark positions described align member and is fixedly connected with described bearing support by the align member of having good positioning with clutch shaft bearing,
F second bearing of having good positioning, to make clutch shaft bearing and the second coaxial bearing and is fixedly connected with described align member and/or described bearing support for benchmark positions described second bearing and described live axle with described align member by ().
Further, described align member can have the positioning surface for matching with the second bearing.
Further, described align member can have positioning hole, and described positioning surface can be the internal surface of described positioning hole, and it can match with the outer surface of described second bearing.
Again further, the aperture of described positioning hole is greater than the diameter of live axle, in described step (e), is first passed from described positioning hole by described live axle and positions described align member; In described step (f), between the positioning hole that described second bearing is inserted into described align member and live axle, to make the outer surface of described second bearing match with the internal surface of described positioning hole, the internal surface of described second bearing matches with the outer surface of described live axle.
Again further, the internal surface of described positioning hole can be provided with the chamfering for guiding the second bearing to insert, and the outer surface of the second bearing has chamfering.
Particularly, described align member can be positioning ring.
Particularly, described second bearing can be that thrust bearing maybe can comprise thrust bearing, and in described step (f), described thrust bearing is adjusted to vertical with the spin axis of described live axle.
Particularly, in described step (e), the location of described align member can realize by means of location measurer and positioning fixture.
Particularly, described method can also comprise: closed respectively at the two ends of described shell.
At least one aspect in technique scheme of the present invention by setting align member the operation of coaxial positioning to be separated with the operation of mobile live axle thus to avoid the impact for the location of bearing and live axle of the rotor of motor and the weight of live axle and the magnetic force between stator and rotor, can improve positioning precision and efficiency of assembling.
Accompanying drawing explanation
Fig. 1 illustrates the structural representation of the compressor according to one embodiment of the invention;
Fig. 2 schematically shows the pilot process assembling compressor according to the compressor assembly method of one embodiment of the invention;
Fig. 3 illustrates the schematic diagram positioned align member in the compressor assembly method according to one embodiment of the invention;
Fig. 4 illustrates the schematic diagram of the mounting point according to the second bearing in the compressor of one embodiment of the invention and align member; With
Fig. 5 a and Fig. 5 b schematically shows plan view according to the align member of one embodiment of the invention and sectional view.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, technological scheme of the present invention is described in further detail.In the description, same or analogous drawing reference numeral represents same or analogous parts.The explanation of following reference accompanying drawing to embodiment of the present invention is intended to make an explanation to present general inventive concept of the present invention, and not should be understood to one restriction of the present invention.
Fig. 1 schematically shows a kind of compressor 100 according to an embodiment of the invention.Compressor 100 comprises shell 3, motor, bearing support 7, align member 11 and the second bearing 12.The two ends of shell 3 are closed by cap 1 and base 8 respectively.So the inside of shell 3 forms a closed chamber.Motor is contained in this chamber closed.Described motor can comprise stator 5, frame 16, live axle 10 and rotor 4.Stator 5 has fixing position relative to shell 3, and such as, stator 5 can be fixed on the inwall of shell 3.In one embodiment, stator 5 can arrange flange 9 on the outer periphery, and is fixed on the inwall of shell 3 by described flange 9.Frame 16 is connected with shell 3 (in the example depicted in fig. 1, frame 16 is connected to the top of shell 3), for supporting stator 5, rotor 4, live axle 10.Frame 16 is provided with clutch shaft bearing 2, and one end of live axle 10 is inserted in clutch shaft bearing 2, is supported by clutch shaft bearing 2.Rotor 4 is fixed on live axle 10, and can rotate relative to stator 5.In the example depicted in fig. 1, rotor 4 surround by stator 5.Bearing support 7 can be fixedly connected with shell 3 or be integrally formed.
Align member 11 is connected with bearing support 7, and the second bearing 12 is connected with align member 11 and/or bearing support 7, and supporting driving shaft 10.In example as shown in Figure 1, bearing support 7 is arranged in the side of shell 3 near base 8, is fixedly connected with the inwall of shell 3.Bearing support 7 can have axis hole or opening, passes from bearing support 7 to allow live axle 10.Bearing support 7 is for carrying the second bearing 12 to meet the requirement of supporting driving shaft 10.Align member 11 is for positioning the second bearing 12.Align member 11 can be the component that can position for benchmark with clutch shaft bearing 2 independent of live axle 10 and the second bearing 12.Such as, align member 11 is and live axle 10 and the discrete component of the second bearing 12.Second bearing 12 can be connected to align member 11 and/or bearing support 7 again after align member 11 is fixedly attached to bearing support 7.This connection such as can realize by means of the Placement that the related domain such as to be threaded is conventional.The location of align member 11 can relate to any one translation freedoms in three dimensional space or any one rotational freedom, also can relate to the combination of these translation freedoms and rotational freedom.
Align member 11 can have the positioning surface 111 for matching with the second bearing 12.Like this, second bearing 12 can after align member 11 be relative to a certain benchmark (such as clutch shaft bearing 2) location, coordinate to position relative to align member 11 by the positioning surface 111 with align member 11, thus make the second bearing 12 keep correct position relationship with this benchmark (such as clutch shaft bearing 2), such as make the second bearing 12 keep coaxial with clutch shaft bearing 2.
In one example, align member 11 can have positioning hole 112, and described positioning surface 111 is internal surfaces of described positioning hole 112, and it can match with the outer surface of the second bearing 12.In this case, after align member 11 positions and is connected with bearing support 7, second bearing 12 can be inserted in positioning hole 112, match with the internal surface of positioning hole 112 to make the outer surface of the second bearing 12, and the internal surface of the second bearing 12 matches with live axle 10, to keep correct position.The internal surface of described positioning hole 112 can be periphery.And for the ease of guiding the insertion of the second bearing 12, also the internal surface of described positioning hole 112 can be arranged to conical surface.
In one embodiment, the aperture of positioning hole 112 can be greater than the diameter of live axle 10.This makes, when positioning hole 112 carries out position adjustment, exists enough gaps between itself and live axle 10, and the adjustment of the position of positioning hole 112 can not be made to be subject to the interference of live axle 10.
In one embodiment, as shown in Figure 3, the internal surface of positioning hole 112 can be provided with the chamfering for guiding the second bearing 12 to insert.Correspondingly, the outer surface of the second bearing 12 also can have chamfering, so that the second bearing 12 is inserted into correct position.
Align member 11 can be positioning ring, also can be formed other shape, such as square, triangle, polygonal etc.Align member 11 can have positioning hole as mentioned above, also can have the positioning surface of other form, as location end face, positioning boss etc., as long as can realize the location fit with the second bearing 12.
In one embodiment, the second bearing 12 can be thrust bearing or comprise thrust bearing.Described thrust bearing provides axially support for live axle 10, and limits the axial position of live axle 10.In this case, need to keep thrust bearing vertical with the spin axis of live axle 10.
The embodiment of the assembly method of following description compressor 100.First, shell 3, bearing support 7, the frame 16 of align member 11 and the second bearing 12 and motor, stator 5, live axle 10 and rotor 4 are provided.The stator 5 of motor and frame 16 are fixedly mounted in shell 3, clutch shaft bearing 2 is arranged in frame 16.Such as, by the inwall flange 9 on stator 5 being connected to shell 3, stator 5 can be fixed to shell 3.Afterwards, one end of live axle 10 is assembled in described clutch shaft bearing 2, and rotor 4 is fixed on live axle 10.Then, bearing support 7 is fixedly connected with shell 3.
The schematic diagram of the compressor part assembled through above installation step as shown in Figure 2.The arranged direction of the shell 3 of the compressor part shown in Fig. 2 is contrary with the arranged direction of the structure shown in Fig. 1.Next, assembling and positioning component 11 and the second bearing 12 is needed.Align member 11 and the second bearing 12 are for ensureing the tram of live axle 10.In compressor 100, need to be arranged to coaxial for the clutch shaft bearing 2 of supporting driving shaft 10 and the second bearing 12.Thus prevent the deflection of live axle 10.
Particularly, first align member 11 is positioned for benchmark with clutch shaft bearing 2.The location of align member 11 can be carried out by means of orientation tool 13, and this orientation tool 13 can be such as location measurer and positioning fixture.After align member 11 completes location, the align member 11 of having good positioning is fixedly connected with bearing support 7.
Afterwards, for benchmark, the second bearing 12 and live axle 10 are positioned with align member 11, to make clutch shaft bearing 2 and the second bearing 12 coaxially, and second bearing 12 of having good positioning is fixedly connected with align member 11 and/or bearing support 7.
For align member 11, will there is positioning hole 112 below and by the situation of the internal surface of positioning hole 112 as the positioning surface 111 matched with the second bearing 12, the assembling for align member 11 and the second bearing 12 is described in more detail.
First passed from positioning hole 112 by live axle 10, the position of adjustment align member 11, such as, can be adjusted to clutch shaft bearing 2 coaxial by the internal surface of the positioning hole 112 of align member 11.Such as can by such as locating the orientation tool such as measurer, positioning fixture to realize, or the elasticity of the screw be distributed on align member 11 different parts even can be used to adjust to the location of align member 11.The adjustment of translation position and/or oblique position adjustment can be comprised to the position adjustment of align member 11.Those skilled in the art also can adopt other techniques well known in the art means to realize the location of align member 11.After align member 11 is positioned suitable position, align member 11 is fixed on bearing support 7.
Afterwards, be inserted between the positioning hole 112 of align member 11 and live axle 10 by the second bearing 12, to make the outer surface of the second bearing 12 match with the internal surface of positioning hole 112, the internal surface of the second bearing 12 matches with the outer surface of live axle 10.Along with the insertion of the second bearing 12, the second bearing 12 promotes the magnetic force that live axle 10 overcomes between rotor 4 and stator 5 and is positioned at suitable position to make live axle 10.Because the internal surface of positioning hole 112 has been adjusted to clutch shaft bearing 2 coaxial, so the second bearing 12 coordinated with it is also positioned the position coaxial with clutch shaft bearing 2 under the guiding of positioning hole 112.
The diameter of positioning hole 112 can be greater than the diameter of live axle 10 corresponding site, thus makes, when positioning hole 112 carries out position adjustment, to there is enough gaps, and the adjustment of the position of positioning hole 112 can not be made to be subject to the interference of live axle 10 between itself and live axle 10.And in the prior art, align member 11 is not set, but positioning equipment is utilized directly to position the second bearing 12 be sleeved on live axle 10.Thus, can be subject to being positioned at the interference of the rotor 4 on live axle 10 and the magnetic force of stator 5 when positioning adjustment, and be difficult to accurately locate.In the embodiment of the application, the fitting operation of positioning action and the second bearing 12 is separated, in the positioning action process that align member 11 is carried out, avoid the impact of larger perturbed force, and the simplicity that the second bearing 12 also improves operation is installed under the guiding of align member 11.
In one embodiment, the internal surface of positioning hole 112 is provided with chamfering, and what guiding second bearing 12 can be made to insert is more convenient to operate and accurate.Similarly, the outer surface of the second bearing 12 also can arrange chamfering.
When the second bearing 12 be thrust bearing or comprise thrust bearing, the positioning surface 111 of align member 11 be adjusted to coaxial with clutch shaft bearing 2 while be also adjusted to vertical with the spin axis of live axle 10.
Fig. 5 a and Fig. 5 b shows a kind of example of align member 11, and the center of this align member 11 has positioning hole 112.The inner surface edge place of positioning hole 112 is provided with the chamfered section 1121 for guiding the second bearing 12 to insert.The chamfering angle size α of described chamfered section 1121 can determine as required, such as, between 5 ° to 15 °, as 10 °.Fig. 5 a is plan view, and Fig. 5 b is the sectional view intercepted along the cutting line AA in Fig. 5 a.In the embodiment illustrated in figs. 5 a and 5b, this align member 11 can also be provided with fixed hole 113,114 and 115, for being fixed (such as by means of bolt or screw) by align member 11.Described fixed hole 113,114 and 115 can have different diameters, can be through hole, also can be screw.There is shown three groups of 9 fixed holes, go for multiple fixing needs, but this not necessarily.It is fixing that user can select the arbitrary some holes retained wherein to realize.
In above-mentioned compressor assembly method, by the closed at both ends of shell 3, such as, can also be closed by cap 1 and base 8 respectively.
In an embodiment of the present invention, described compressor can be such as permanent magnet motor refrigeration compressor.
Although describe the present invention by reference to the accompanying drawings, embodiment disclosed in accompanying drawing is intended to carry out exemplary illustration to the preferred embodiment for the present invention, and can not be interpreted as one restriction of the present invention.
Although some embodiments of general plotting of the present invention have been shown and explanation, those skilled in the art will appreciate that, when not deviating from principle and the spirit of this present general inventive concept, can make a change these embodiments, scope of the present invention is with claim and their equivalents.
Claims (20)
1. a compressor, comprising:
Shell, the two ends of described shell are closed by cap and base respectively;
Motor, described motor holds in the housing, and described motor comprises:
Stator, described stator has fixing position relative to described shell,
Frame, described frame is connected with described shell and is provided with clutch shaft bearing;
Live axle, one end of described live axle is supported by described clutch shaft bearing; With
Rotor, described rotor is fixed on described live axle, and can relative to described stator rotation;
Bearing support, described bearing support is fixedly connected with described shell or is integrally formed;
Second bearing, live axle described in described second bearings; And
Align member, described align member is used for positioning the second bearing and being connected with described bearing support, and described second bearing is connected with described align member and/or described bearing support,
Wherein, described align member can with described clutch shaft bearing for benchmark positions, and it can carry out independent of described live axle and described second bearing with the location that described clutch shaft bearing is benchmark.
2. compressor according to claim 1, wherein, described align member has the positioning surface for matching with the second bearing.
3. compressor according to claim 2, wherein, described align member has positioning hole, and described positioning surface is the internal surface of described positioning hole, and it matches with the outer surface of described second bearing.
4. compressor according to claim 3, wherein, the aperture of described positioning hole is greater than the diameter of live axle.
5. compressor according to claim 3, wherein, the internal surface of described positioning hole is provided with the chamfering for guiding the second bearing to insert, and the outer surface of the second bearing has chamfering.
6. compressor according to claim 3, wherein, the internal surface of described positioning hole is periphery or conical surface.
7. the compressor according to any one of claim 1-6, wherein, described align member is positioning ring.
8. the compressor according to any one of claim 1-6, wherein, described clutch shaft bearing and described second bearing are coaxial.
9. the compressor according to any one of claim 1-6, wherein, described second bearing is thrust bearing or comprises thrust bearing, and described thrust bearing is vertical with the spin axis of described live axle.
10. the compressor according to any one of claim 1-6, wherein, the periphery of described stator is provided with flange, with the inwall of described shell, described flange is connected that stator is fixed on described shell.
11. compressors according to any one of claim 1-6, wherein, described compressor is permanent magnet motor refrigeration compressor.
12. 1 kinds of compressor assembly methods, comprise step:
A () provides shell, bearing support, align member, the frame of the second bearing and motor, stator, live axle and rotor;
B the stator of motor and frame are fixedly mounted in shell by (), be provided with clutch shaft bearing in described frame;
C one end of live axle is assembled in described clutch shaft bearing by (), and be fixed on live axle by rotor;
D bearing support is fixedly connected with shell by ();
E () is that benchmark positions described align member and is fixedly connected with described bearing support by the align member of having good positioning with clutch shaft bearing; With
F second bearing of having good positioning, to make clutch shaft bearing and the second coaxial bearing and is fixedly connected with described align member and/or described bearing support for benchmark positions described second bearing and described live axle with described align member by ().
13. compressor assembly methods according to claim 12, wherein, described align member has the positioning surface for matching with the second bearing.
14. compressor assembly methods according to claim 13, wherein, described align member has positioning hole, and described positioning surface is the internal surface of described positioning hole, and it can match with the outer surface of described second bearing.
15. compressor assembly methods according to claim 14, wherein, the aperture of described positioning hole is greater than the diameter of live axle, in described step (e), is first passed from described positioning hole by described live axle and positions described align member; In described step (f), between the positioning hole that described second bearing is inserted into described align member and live axle, to make the outer surface of described second bearing match with the internal surface of described positioning hole, the internal surface of described second bearing matches with the outer surface of described live axle.
16. compressor assembly methods according to claim 15, wherein, the internal surface of described positioning hole is provided with the chamfering for guiding the second bearing to insert, and the outer surface of the second bearing has chamfering.
17. compressor assembly methods according to any one of claim 12-16, wherein, described align member is positioning ring.
18. compressor assembly methods according to any one of claim 12-16, wherein, described second bearing is thrust bearing or comprises thrust bearing, and in described step (f), described thrust bearing is adjusted to vertical with the spin axis of described live axle.
19. compressor assembly methods according to any one of claim 12-16, wherein, in described step (e), the location of described align member realizes by means of location measurer and positioning fixture.
20. compressor assembly methods according to any one of claim 12-16, wherein, described method also comprises: closed respectively at the two ends of described shell.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210017793.9A CN103216416B (en) | 2012-01-19 | 2012-01-19 | compressor and compressor assembly method |
| US13/742,417 US20130189133A1 (en) | 2012-01-19 | 2013-01-16 | Compressor and method of assembling compressor |
| DE102013200597.0A DE102013200597B4 (en) | 2012-01-19 | 2013-01-16 | Compressor and method of assembling such a compressor |
| US15/153,212 US10495087B2 (en) | 2012-01-19 | 2016-05-12 | Compressor and method of assembling compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210017793.9A CN103216416B (en) | 2012-01-19 | 2012-01-19 | compressor and compressor assembly method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103216416A CN103216416A (en) | 2013-07-24 |
| CN103216416B true CN103216416B (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210017793.9A Expired - Fee Related CN103216416B (en) | 2012-01-19 | 2012-01-19 | compressor and compressor assembly method |
Country Status (1)
| Country | Link |
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| CN (1) | CN103216416B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109773362B (en) * | 2019-03-28 | 2023-09-26 | 昆山华恒焊接股份有限公司 | Compressor welding system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001355582A (en) * | 2000-06-14 | 2001-12-26 | Matsushita Electric Ind Co Ltd | Hermetically sealed motor-driven compressor and method for assembling it |
| FR2915534B1 (en) * | 2007-04-25 | 2009-05-29 | Danfoss Commercial Compressors | METHOD FOR ASSEMBLING A REFRIGERATING COMPRESSOR |
| CN103016344B (en) * | 2008-01-16 | 2015-08-12 | 艾默生环境优化技术有限公司 | Scroll machine |
| CN201412344Y (en) * | 2009-05-20 | 2010-02-24 | 浙江鸿友压缩机制造有限公司 | Positioning and connecting device for fixed blade compressor |
| CN202417872U (en) * | 2012-01-19 | 2012-09-05 | 丹佛斯（天津）有限公司 | Compressor |
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2012
- 2012-01-19 CN CN201210017793.9A patent/CN103216416B/en not_active Expired - Fee Related
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| CN103216416A (en) | 2013-07-24 |
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Granted publication date: 20160413 Termination date: 20200119 |