CN104533791B - Compressor - Google Patents
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- CN104533791B CN104533791B CN201410623774.XA CN201410623774A CN104533791B CN 104533791 B CN104533791 B CN 104533791B CN 201410623774 A CN201410623774 A CN 201410623774A CN 104533791 B CN104533791 B CN 104533791B
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- main shaft
- cylinder
- pump housing
- countershaft
- bevel gear
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- 239000000446 fuel Substances 0.000 claims description 13
- 238000007906 compression Methods 0.000 description 7
- 230000006835 compression Effects 0.000 description 6
- 238000013016 damping Methods 0.000 description 5
- 230000001133 acceleration Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a kind of compressor, including: shell, define chamber in shell；Main shaft, main shaft is located in chamber vertically extendingly；Base bearing, base bearing is set on main shaft；Drive motor, drive motor is located at the interior also drive shaft of chamber around the center axis thereof of this main shaft；Driving member, driving member is connected with main shaft and is driven by main shaft；At least two pump housing, at least two pump housing is respectively provided in chamber and is positioned at below base bearing, and each pump housing includes respectively: cylinder, and cylinder is located at the side of main shaft；Primary spindle holds, and primary spindle holds and is located on cylinder and between cylinder and main shaft；Little supplementary bearing, little supplementary bearing is located on cylinder and between cylinder and shell；Countershaft, countershaft along main shaft sequentially pass through with radially extending primary spindle hold, cylinder and little supplementary bearing, one end of countershaft is connected with driving member, and countershaft is driven by driving member and pivotable around the central axis of countershaft.Compressor according to embodiments of the present invention, it is possible to effectively reduce vibration.
Description
Technical field
The present invention relates to technical field of refrigeration equipment, more particularly, to a kind of compressor.
Background technology
Compressor is the important composition parts of the household electrical appliance that air-conditioner, electric refrigerator etc. utilize cooling cycle system to work.Rolling piston compressor is with a long history, so far still in extensive use.
Rotary compression engine efficiency is higher, but vibrating noise is poor, the high request of present user can not be met very well, each big compressor and air-conditioning factory are devoted to improve the effort of noise vibration, but because of in rotary compressor gas compression processes, tangentially and radially all there is unbalanced moments at the pump housing, it is difficult to overcome, the actual effect improved is poor.
Vibration of compressor root mainly includes six broad aspect: 1) compresses and there is difference between load torque and the motor output torque of gas, is the main cause causing circumference tangential vibrations；2) the pressure cycle change compressing gas is the principal element causing compressor radial vibration；3) rotation system (rotor-bent axle) unbalance inertia force causes that bent axle amount of deflection increases, and makes complete machine oscillation increase；4) air pulsing, mainly causes parts thereof structural vibration；5) unbalanced magnetic pull of motor causes that motor oscillating increases, and aggravates complete machine oscillation；6) friction between valve block and reciprocal telemechanical and the moving component of slide plate and impact, cause component structural to vibrate, add the vibration of complete machine.Wherein, tangential acceleration is maximum, and secondly, axial acceleration is minimum for radial acceleration, generally characterizes the size of vibration of compressor by tangential acceleration.
Compressor in the practical application of air-conditioner, for the ease of install, the vibration isolator (damping washer) of compressor is axially uniform, it is desirable to effectiveness in vibration suppression be axial, it is impossible to good absorption vibration tangentially and radially.Therefore compressor wishes all vibrations that can not remove are converted into axial vibration.
Summary of the invention
It is contemplated that solve one of above-mentioned technical problem at least to a certain extent.
For this, the present invention proposes a kind of compressor, and this compressor arrangement is simply compact, it is possible to effectively reduce the vibration of compressor.
Compressor according to embodiments of the present invention, including: shell, define chamber in described shell；Main shaft, described main shaft is located in described chamber vertically extendingly；Base bearing, described base bearing is set on described main shaft；Drive motor, described drive motor is located in described chamber and drives described main shaft around the center axis thereof of this main shaft；Driving member, described driving member is connected with described main shaft and is driven by described main shaft；At least two pump housing, the described at least two pump housing is respectively provided in described chamber and is positioned at below described base bearing, and each described pump housing includes respectively: cylinder, and described cylinder is located at the side of described main shaft；Primary spindle holds, and described primary spindle holds and is located on described cylinder and between described cylinder and described main shaft；Little supplementary bearing, described little supplementary bearing is located on described cylinder and between described cylinder and described shell；Countershaft, described countershaft along described main shaft sequentially pass through with radially extending described primary spindle hold, described cylinder and described little supplementary bearing, one end of described countershaft is connected with described driving member, and described countershaft is driven by described driving member and pivotable around the central axis of described countershaft.
Compressor according to embodiments of the present invention, by arranging at least two pump housing, the at least two pump housing can cancel out each other or weaken unbalanced moments produced by pump body compression gas, and the action direction making the tangentially and radially moment of the pump housing of traditional structure is changed into axially, most of axial vibration is consistent to damping washer with compressor shaft, it is possible to absorbs vibration better and makes compressor body vibration reduce.
It addition, compressor according to embodiments of the present invention, it is also possible to there is following additional technical characteristic:
According to one embodiment of present invention, the described pump housing includes two, and two described pump housings are symmetrically arranged at the both sides of described main shaft.
According to one embodiment of present invention, described driving member includes master bevel gear and secondary bevel gear, described master bevel gear is located on described main shaft and around the center axis thereof of described main shaft, described secondary bevel gear is located on described countershaft, and described secondary bevel gear engages with described master bevel gear and around the center axis thereof of described countershaft.
According to one embodiment of present invention, described master bevel gear and the gear ratio of described secondary bevel gear are be more than or equal to 1.
According to one embodiment of present invention, described cylinder, described primary spindle hold and the upper surface of described little supplementary bearing is respectively formed as plane, and described plane only supports the lower surface of described base bearing.
According to one embodiment of present invention, described compressor also includes the fuel feeding assembly corresponding with described pump housing number, the described pump housing fuel feeding that each described fuel feeding assembly is respectively corresponding.
According to one embodiment of present invention, described drive motor is constant-seed motor or variable speed electric motors, particularly.
According to one embodiment of present invention, the described pump housing includes three, and three described pump housings are evenly arranged along the circumferentially spaced of described main shaft.
The additional aspect of the present invention and advantage will part provide in the following description, and part will become apparent from the description below, or is recognized by the practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage are from conjunction with will be apparent from easy to understand the accompanying drawings below description to embodiment, wherein:
Fig. 1 is the structural representation of compressor according to an embodiment of the invention；
Fig. 2 is close-up schematic view in Fig. 1；
Fig. 3 is the profile of Fig. 1 center line A-A；
Fig. 4 is the structural representation of the cylinder of the pump housing of compressor according to embodiments of the present invention；
Fig. 5 is the structural representation that the primary spindle of the pump housing of compressor according to embodiments of the present invention holds；
Fig. 6 is the structural representation of the little supplementary bearing of the pump housing of compressor according to embodiments of the present invention；
Fig. 7 is the structural representation of compressor in accordance with another embodiment of the present invention.
Accompanying drawing labelling:
Compressor 100；
Shell 10；Chamber 11；
Main shaft 20；Oil guide groove 21；
Base bearing 30；Drive motor 40；
Driving member 50；Master bevel gear 51；Secondary bevel gear 52；
The pump housing 60；Cylinder 61；Primary spindle holds 62；Little supplementary bearing 63；Countershaft 64；
Fuel feeding assembly 70.
Detailed description of the invention
Being described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of same or like function from start to finish.The embodiment described below with reference to accompanying drawing is illustrative of, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " radially ", " axially ", " on ", D score, " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second " are only for descriptive purposes, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or implicitly include one or more these features.In describing the invention, " multiple " are meant that two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or connect integratedly；Can be mechanically connected, it is also possible to be electrical connection；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be the connection of two element internals.For the ordinary skill in the art, it is possible to understand above-mentioned term concrete meaning in the present invention as the case may be.
Compressor 100 according to embodiments of the present invention is specifically described below in conjunction with accompanying drawing.
As shown in Figures 1 to 7, compressor 100 according to embodiments of the present invention includes shell 10, main shaft 20, base bearing 30, drive motor 40, driving member 50 and at least two pump housing 60.
Specifically, defining chamber 11 in shell 10, main shaft 20 is located in chamber 11 vertically extendingly.Base bearing 30 is set on main shaft 20, and drive motor 40 is located in chamber 11 and drive shaft 20 is around the center axis thereof of this main shaft 20, and driving member 50 is connected with main shaft 20 and is driven by main shaft 20.
At least two pump housing 60 is respectively provided in chamber 11 and is positioned at below base bearing 30, and each pump housing 60 includes cylinder 61 respectively, primary spindle holds 62, little supplementary bearing 63 and countershaft 64.Wherein, cylinder 61 is located at the side of main shaft 20, and primary spindle holds 62 and is located on cylinder 61 and between cylinder 61 and main shaft 20, and little supplementary bearing 63 is located on cylinder 61 and between cylinder 61 and shell 10.Countershaft 64 along main shaft 20 sequentially pass through with radially extending primary spindle hold 62, cylinder 61 and little supplementary bearing 63, one end of countershaft 64 is connected with driving member 50, and countershaft 64 is driven by driving member 50 and pivotable around the central axis of countershaft 64.
As it is shown in figure 1, compressor 100 according to embodiments of the present invention includes a vertically extending shell 10, the main shaft 20 in shell 10 is located in chamber 11 along the vertical direction, and drive motor 40 can drive shaft 20 rotate around vertical direction.It is provided with at least two pump housing 60 between outside wall surface and the shell 10 of the lower end of main shaft 20, each pump housing 60 is equivalent to a compression mechanism, the axis of the pump housing 60 is horizontally extending, the countershaft 64 of the pump housing 60 is connected with main shaft 20 by driving member 50, and the axial rotation of main shaft 20 can be converted to the axial rotation of countershaft 64 by driving member 50, the part stretching into cylinder 61 of countershaft 64 is provided with eccentric part, such that it is able to carry out gas compression in cylinder 61.
In other words, compressor 100 according to embodiments of the present invention arranges the pump housing 60 of at least two horizontally set in the chamber 11 being longitudinally arranged, drive motor 40 drive shaft 20 is around longitudinally rotating, the gearing of driving member 50 is passed through around the main shaft 20 longitudinally rotated, the countershaft 64 of each pump housing 60 can be driven around lateral rotation, such that it is able to make each pump housing 60 carry out gas compression respectively, the moment of each pump housing 60 is changed into longitudinal direction by the transverse direction of transmission compressor, and this moment direction is consistent with the axial damping packing ring direction of compressor 100.
Wherein it should be noted that, the cylinder 61 of each pump housing 60, primary spindle hold 62, little supplementary bearing 63 can be similar with the assembling structure of the pump housing of traditional structure with the assembling structure of countershaft 64, its operation principle is also substantially the same, it is different in that, the countershaft 64 of each pump housing 60 is only positioned at the short axle at the pump housing 60 two ends, there is no major axis, and primary spindle hold 62 with being closely sized to of little supplementary bearing 63, the countershaft 64 of this structure is shorter, can so that each pump housing 60 structure be more compact, assembling in chamber 11 is more reasonable, and drive path is short, and transmission efficiency is high.
It addition, the assembling structure in compressor 100 of the axial damping packing ring in compressor 100 and effect are also all appreciated that to those skilled in the art and easily realize, therefore it is not described in detail.
Thus, compressor 100 according to embodiments of the present invention, by arranging at least two pump housing 60, the at least two pump housing 60 can cancel out each other or weaken the pump housing 60 and compress unbalanced moments produced by gas, and the action direction making the tangentially and radially moment of the pump housing of traditional structure is changed into axially, most of axial vibration is consistent to damping washer with compressor shaft, it is possible to absorbs vibration better and makes compressor 100 body vibration reduce.
According to one embodiment of present invention, the pump housing 60 includes two, and two pump housings 60 are symmetrically arranged at the both sides of main shaft 20.As shown in Figure 2, say, that in chamber 11, be provided with two pump housings 60, two pump housings 60 are respectively provided at the both sides of main shaft 20 and are symmetrical arranged.Thus, the pump housing 60 of this structure is distinguished evenly around at main shaft 20, and phase shifting, it is possible to effectively offsets the pump housing 60 and compresses unbalanced moments produced by gas, vibrates thus reducing compressor 100 further.
As it is shown in fig. 7, in other detailed description of the invention of the present invention, the pump housing 60 includes three, three pump housings 60 are evenly arranged along the circumferentially spaced of main shaft 20.Specifically, it is possible to designed by the inclined graduation of compressor 100, shell 10 external diameter is strengthened, the lower space making shell 10 increases, it is possible to is designed by the pump housing 60 volume of bottom and increases, such that it is able to three uniform pump housings 60 of assembling, more good utilisation space, improving the ability of compression, three pump housings 60 one-tenth 120 ° stagger, uniform balance, chamber 11 phase contrast 120 °, interlock and carry out, be likewise supplied with reducing the function of compressor 100 vibration, and effectiveness in vibration suppression is better.
The axial rotation of main shaft 20 is changed the drive mechanism that the structure of the axial rotation of countershaft 64 can adopt those skilled in the art to commonly use, preferably, according to one embodiment of present invention, driving member 50 includes master bevel gear 51 and secondary bevel gear 52, master bevel gear 51 is located on main shaft 20 and around the center axis thereof of main shaft 20, secondary bevel gear 52 is located on countershaft 64, and secondary bevel gear 52 engages with master bevel gear 51 and around the center axis thereof of countershaft 64.Further, master bevel gear 51 and the gear ratio of secondary bevel gear 52 are be more than or equal to 1.
Specifically, as depicted in figs. 1 and 2, the countershaft 64 of each pump housing 60 being respectively equipped with secondary bevel gear 52, the number of teeth of the secondary bevel gear 52 on each pump housing 60 is identical, it is ensured that the rotation amplitude of the countershaft 64 of two pump housings 60 is consistent.The gear ratio of master bevel gear 51 and secondary bevel gear 52 is be more than or equal to 1, and can by controlling the rotating speed that the change of gear ratio changes the countershaft 64 of the pump housing 60, thus changing the pump housing 60 discharge capacity within the unit interval, namely by exporting actual different rotating speeds, it is possible to regulate the refrigerating capacity of compressor 100.Master bevel gear 51 can be adopted with the connection of main shaft 20 and the connection of pair bevel gear 52 and countershaft 64 and be screwed or bolt block connection.
It is understandable that, driving member 50 is arranged to master bevel gear 51 and secondary bevel gear 52 structure, namely by gear drive between main shaft 20 and countershaft 64, current high-precision gear-driven efficiency has reached 99%, adopts gear transmission structure to have substantially no effect on the performance of compressor 100.It addition, along with working ability improves constantly, gear price is also with decline so that the cost of whole compressor 100 is controlled.
Gear lubricant is suitable with the lubricating oil of existing compressor 100 when underload, and viscosity is tens degree, and master bevel gear 51 and secondary bevel gear 52 are located at the lower end of compressor 100, it is possible to sufficient lubrication.By gear drive between main shaft 20 and countershaft 64, base bearing 30 is individually welded on shell 10, and compressor 100 does not have the problem of axiality, and the unbalanced magnetic pull of motor can eliminate substantially, it is ensured that compressor 100 properly functioning.
As shown in Figures 4 to 6, according to one embodiment of present invention, cylinder 61, primary spindle hold 62 and the upper surface of little supplementary bearing 63 be respectively formed as plane, plane only supports the lower surface of base bearing 30.
That is, cylinder 61, primary spindle hold 62 and the upper surface of little supplementary bearing 63 be only against on the lower surface of base bearing 30 respectively, and the lower surface of base bearing 30 is plane, cylinder 61, primary spindle are held 62 and the upper surface trimming respectively of little supplementary bearing 63 process, can so that cylinder 61, primary spindle hold 62 and little supplementary bearing 63 with base bearing 30, there is bigger contact area, thus improve cylinder 61, primary spindle holds the connective stability of 62 and little supplementary bearing 63 and base bearing 30.Can being provided with screwed hole on the upper surface of cylinder 61, position corresponding with the screwed hole of cylinder 61 on base bearing 30 can also be threaded hole, the pump housing 60 can be arranged on base bearing 30 by screw.
According to one embodiment of present invention, compressor also includes the fuel feeding assembly 70 corresponding with the pump housing 60 number, the pump housing 60 fuel feeding that each fuel feeding assembly 70 is respectively corresponding.The structure of fuel feeding assembly 70 is appreciated that to those skilled in the art and easily realizes, and therefore repeats no more.Thus, by being respectively provided with fuel feeding assembly 70 on each pump housing 60, it is possible to respectively each pump housing 60 is carried out fuel feeding.
According to embodiments of the present invention, drive motor 40 is constant-seed motor or variable speed electric motors, particularly, then corresponding compressor 100 can be invariable frequency compressor or frequency-changeable compressor.Thus, compressor 100 according to embodiments of the present invention, by changing different drive motors 40, it is possible to achieve the difference in functionality of compressor 100.
Other compositions of compressor 100 according to embodiments of the present invention and operation are all known for those of ordinary skills, are not detailed herein.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example describe are contained at least one embodiment or the example of the present invention.In this manual, the schematic representation of above-mentioned term is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiments or example.
Although above it has been shown and described that embodiments of the invention, it is understandable that, above-described embodiment is illustrative of, being not considered as limiting the invention, above-described embodiment can be changed when without departing from principles of the invention and objective, revises, replace and modification by those of ordinary skill in the art within the scope of the invention.
Claims (8)
1. a compressor, it is characterised in that including:
Shell, defines chamber in described shell；
Main shaft, described main shaft is located in described chamber vertically extendingly；
Base bearing, described base bearing is set on described main shaft；
Drive motor, described drive motor is located in described chamber and drives described main shaft around the center axis thereof of this main shaft；
Driving member, described driving member is connected with described main shaft and is driven by described main shaft；
At least two pump housing, the described at least two pump housing is respectively provided in described chamber and is positioned at below described base bearing, and each described pump housing includes respectively:
Cylinder, described cylinder is located at the side of described main shaft；
Primary spindle holds, and described primary spindle holds and is located on described cylinder and between described cylinder and described main shaft；
Little supplementary bearing, described little supplementary bearing is located on described cylinder and between described cylinder and described shell；
Countershaft, described countershaft along described main shaft sequentially pass through with radially extending described primary spindle hold, described cylinder and described little supplementary bearing, one end of described countershaft is connected with described driving member, and described countershaft is driven by described driving member and pivotable around the central axis of described countershaft.
2. compressor according to claim 1, it is characterised in that the described pump housing includes two, two described pump housings are symmetrically arranged at the both sides of described main shaft.
3. compressor according to claim 2, it is characterized in that, described driving member includes master bevel gear and secondary bevel gear, described master bevel gear is located on described main shaft and around the center axis thereof of described main shaft, described secondary bevel gear is located on described countershaft, and described secondary bevel gear engages with described master bevel gear and around the center axis thereof of described countershaft.
4. compressor according to claim 3, it is characterised in that the gear ratio of described master bevel gear and described secondary bevel gear is be more than or equal to 1.
5. compressor according to claim 1, it is characterised in that described cylinder, described primary spindle hold and the upper surface of described little supplementary bearing is respectively formed as plane, described plane only supports the lower surface of described base bearing.
6. compressor according to claim 1, it is characterised in that also include the fuel feeding assembly corresponding with described pump housing number, the described pump housing fuel feeding that each described fuel feeding assembly is respectively corresponding.
7. compressor according to claim 1, it is characterised in that described drive motor is constant-seed motor or variable speed electric motors, particularly.
8. compressor according to claim 1, it is characterised in that the described pump housing includes three, three described pump housings are evenly arranged around the circumferentially spaced of described main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410623774.XA CN104533791B (en) | 2014-11-07 | 2014-11-07 | Compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410623774.XA CN104533791B (en) | 2014-11-07 | 2014-11-07 | Compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104533791A CN104533791A (en) | 2015-04-22 |
| CN104533791B true CN104533791B (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410623774.XA Active CN104533791B (en) | 2014-11-07 | 2014-11-07 | Compressor |
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| Country | Link |
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| CN (1) | CN104533791B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488070B (en) * | 2018-03-19 | 2019-06-28 | 北京海松元汽车部件有限公司 | A kind of anti-wear maintenance process of compressor of air conditioner |
| CN111173748A (en) * | 2019-12-26 | 2020-05-19 | 珠海格力节能环保制冷技术研究中心有限公司 | Novel rotary compressor, refrigerating system, heat pump system and air conditioning equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1950608A (en) * | 2004-05-11 | 2007-04-18 | 大金工业株式会社 | Rotary compressor |
| CN100487250C (en) * | 2004-05-11 | 2009-05-13 | 大金工业株式会社 | Rotary fluid machine |
| CN102852794A (en) * | 2011-06-27 | 2013-01-02 | 东芝开利株式会社 | Multi-cylinder rotary compressor and refrigeration cycle device |
| CN204239250U (en) * | 2014-11-07 | 2015-04-01 | 广东美芝制冷设备有限公司 | Compressor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03237289A (en) * | 1990-02-10 | 1991-10-23 | Matsushita Refrig Co Ltd | Two-cylinder rotary compressor |
| JP4889677B2 (en) * | 2008-04-22 | 2012-03-07 | 三菱電機株式会社 | Parallel rotary compressor |
-
2014
- 2014-11-07 CN CN201410623774.XA patent/CN104533791B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1950608A (en) * | 2004-05-11 | 2007-04-18 | 大金工业株式会社 | Rotary compressor |
| CN100487250C (en) * | 2004-05-11 | 2009-05-13 | 大金工业株式会社 | Rotary fluid machine |
| CN102852794A (en) * | 2011-06-27 | 2013-01-02 | 东芝开利株式会社 | Multi-cylinder rotary compressor and refrigeration cycle device |
| CN204239250U (en) * | 2014-11-07 | 2015-04-01 | 广东美芝制冷设备有限公司 | Compressor |
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| CN104533791A (en) | 2015-04-22 |
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