CN204386880U - Variable conpacitance compressor and comprise the electrical products of this variable conpacitance compressor - Google Patents
Variable conpacitance compressor and comprise the electrical products of this variable conpacitance compressor Download PDFInfo
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- CN204386880U CN204386880U CN201420702402.1U CN201420702402U CN204386880U CN 204386880 U CN204386880 U CN 204386880U CN 201420702402 U CN201420702402 U CN 201420702402U CN 204386880 U CN204386880 U CN 204386880U
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Abstract
The utility model discloses a kind of variable conpacitance compressor and electrical products, this compressor comprises fixed scroll, coordinates the orbiter forming inner chamber and exocoel and the cover plate being arranged at fixed scroll top with fixed scroll, the upper-end surface of fixed scroll is provided with the first annular groove, the bottom surface of the first annular groove is provided with the first transfiguration hole and the second annular groove, and the bottom surface of the second annular groove is provided with the second transfiguration hole; Be provided with the first piston that can slide up and down in first annular groove, and keep tightness between the sidewall of the sidewall of first piston and the first annular groove; Be provided with second piston that can slide up and down in second annular groove, and keep tightness between the sidewall of the sidewall of the second piston and the second annular groove; The first elastic component is provided with between second piston and first piston; Also comprise the slide control mechanism of sliding in the first annular groove for controlling first piston.Setting like this, the variable conpacitance compressor that the utility model provides, its capacity-variable structure easily controls, and transfiguration reliability is better.
Description
Technical field
The utility model relates to Compressor Technology field, particularly a kind of variable conpacitance compressor and comprise the electrical products of this variable conpacitance compressor.
Background technique
Along with the minimizing gradually of non-renewable energy resources, China has higher requirement to the energy-efficient of electrical products, and such as, the electrical products such as air-conditioning, refrigerator, have employed the scroll compressor that efficiency is higher mostly.
In prior art, scroll compressor mainly comprises the parts such as sealing shell, orbiter, fixed scroll, bent axle, frame, anti-rotation mechanism and motor.Fixed scroll is fixed in frame, and Moving plate is by crank-driven and restricted by anti-rotation mechanism, around the basic circle center of fixed scroll, makes the Plane Rotation of very minor radius.
The molded line of dynamic and static scroll is all spiralitys, the relative fixed scroll bias of orbiter also differs 180 degree of installations, they axially can contact on several straight lines in theory, the end of vortex body molded line is touched with relative vortex body bottom connection, so define a series of crescent-shaped space between dynamic and static scroll, i.e. element volume.At orbiter with the center of fixed scroll for rotating center and when doing revolution translation without rotation with certain turning radius, outer ring crescent-shaped space just can constantly move to center, now, refrigerant is pushed to central space gradually, its volume constantly reduces and pressure constantly raises, until communicate with central exhaust port, high pressure refrigerant is discharged the pump housing.
The transfiguration principle of varying capacity scroll compressor: by the delay of scroll molded line closing point, is communicated with compression chamber gas with air aspiration cavity gas, thus reduces the discharge capacity of compression chamber, realizes the adjustment of air-conditioner set sub load.By offering transfiguration hole at quiet dish-type line top, utilizing the opening and closing of the moving up and down of piston valve, transfiguration by-pass hole, thus realizing the delay of molded line closing point.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is the sectional view of transfiguration scroll compressor in prior art; Fig. 2 is that schematic diagram is arranged in the transfiguration hole of transfiguration scroll compressor in prior art.
Transfiguration scroll compressor of the prior art is provided with piston 1, bypass passageways 2, transfiguration hole 3, wherein, piston 1 moves up and down in transfiguration hole 3, to open or close transfiguration hole 3, and then quiet dish internal compression cavity is communicated with bypass passageways 2 by transfiguration hole 3, realize the object of varying capacity.
But compressor capacity-variable structure of the prior art operationally, can only realize the adjustment of small capacity.When scroll compressor varying capacity require large time, such as transfiguration hole arrange along molded line expanded angle more than 360 ° time, auxiliary pressure relief need be increased, the useless compression power consumption avoid the exocoel i.e. gas compression in the 3rd chamber, bringing.Because via hole need control simultaneously, bring control structure complexity, and high to the requirements of installation space of compressor.As shown in Figure 2, when demand varying capacity is larger, transfiguration hole 3 needs and auxiliary transfiguration hole 4 is opened simultaneously, if two capacity-variable structure control respectively, control system more complicated, if when there is delay unlatching in two capacity-variable structure, the stressed variation of sound dish, reduces the reliability of sound dish.
Therefore, how to solve the complicated and problem that reliability is poor of compressor transfiguration structural control system in prior art, become those skilled in the art's important technological problems to be solved.
Model utility content
The purpose of this utility model is to provide a kind of variable conpacitance compressor, and its capacity-variable structure easily controls, and transfiguration reliability is better.The utility model additionally provides a kind of electrical products comprising above-mentioned variable conpacitance compressor.
The variable conpacitance compressor that the utility model provides, comprise fixed scroll, coordinate the orbiter forming inner chamber and exocoel and the cover plate being arranged at described fixed scroll top with described fixed scroll, the upper-end surface of described fixed scroll is provided with the first annular groove, the bottom surface of described first annular groove is provided with the first transfiguration hole and the second annular groove, the bottom surface of the second annular groove is provided with the second transfiguration hole, described first transfiguration hole is connected with described exocoel, described second transfiguration hole and described intracavity inter-connection; Be provided with the first piston that can slide up and down in described first annular groove, and keep tightness between the sidewall of the sidewall of described first piston and described first annular groove; Be provided with second piston that can slide up and down in described second annular groove, and keep tightness between the sidewall of the sidewall of described second piston and described second annular groove; The first elastic component is provided with between described second piston and described first piston; Also comprise the slide control mechanism of sliding in described first annular groove for controlling described first piston.
Preferably, the second elastic component between the bottom also comprising the lower end surface being arranged at described first piston and described first annular groove.
Preferably, described slide control mechanism comprises pressed gas supplier and Pneumatic controller, and described cover plate top is provided with pressed gas entrance, enters the upper-end surface applying pressure of described first annular groove to described first piston to make pressed gas.
Preferably, the connecting rod means that described slide control mechanism comprises motor, one end is fixedly connected with the output shaft of described motor, the other end of described connecting rod means and the upper-end surface of described first piston are hinged.
Preferably, described first annular groove is provided with Leak hole, and described Leak hole is connected with the air aspiration cavity of described variable conpacitance compressor.
Preferably, the quantity of described Leak hole is at least two, and the cross-section area sum of Leak hole described in each, be greater than four times of the cross-section area sum in the first transfiguration hole and the second transfiguration hole.
Preferably, the sidewall of described first piston and described second piston is equipped with annular groove, and is all provided with seal ring in two described annular grooves.
Preferably, the inside of described first piston and described second piston has hollow-core construction.
Preferably, the lower end surface of described first piston and the upper-end surface of described second piston are provided with the first mounting groove for installing described first elastic component, and the lower end surface of described first piston and the bottom surface of described first annular groove are provided with the second mounting groove for installing described second elastic component.
The utility model additionally provides a kind of electrical products, comprises compressor, and described compressor is the variable conpacitance compressor as above described in any one.
Coolant media is inhaled in the cavity of fixed scroll and orbiter formation from the air aspiration cavity of variable conpacitance compressor, it should be noted that, inner chamber and exocoel is formed between fixed scroll and orbiter, the variable conpacitance compressor that the utility model provides, cover plate is provided with on the top of fixed scroll, and the upper-end surface of fixed scroll is provided with the first annular groove, the bottom surface of the first annular groove is provided with the first transfiguration hole and the second annular groove, the bottom surface of the second annular groove is provided with the second transfiguration hole, described first transfiguration hole is connected with described exocoel, with described intracavity inter-connection in described second transfiguration hole, the first piston that can slide up and down is provided with in first annular groove, and keep tightness between the sidewall of the sidewall of first piston and the first annular groove, be provided with second piston that can slide up and down in second annular groove, and keep tightness between the sidewall of the sidewall of the second piston and described second annular groove, the first elastic component is provided with between second piston and first piston, also comprise the slide control mechanism of sliding in the first annular groove for controlling first piston.Setting like this,
When compressor needs to be in non-transfiguration state, namely when compressor needs to operate with full capacity, now, slide control mechanism is applied to first piston axial force, fitted in the bottom surface of the first annular groove of first piston and fixed scroll, under the pressure effect of first piston, the second piston is also adjacent to the bottom of the second annular groove of fixed scroll, so can make the first transfiguration hole and the second transfiguration hole hermetically closing, and then make compressor be in non-transfiguration state.
When compressor needs to be in exocoel transfiguration state, namely when the varying capacity needed is less, slide control mechanism control first piston slides into the first predeterminated position to the upper position of the first annular groove, open to make the first transfiguration hole, the distance risen due to first piston is less, under the pressure effect of the first elastic component, second piston is still pressed on the bottom land of the second annular groove, second transfiguration hole is in hermetically closing state, so, refrigerant in exocoel can be extruded by the first transfiguration hole, and then achieves exocoel transfiguration, makes compressor be in exocoel transfiguration state.
When compressor needs to be in interior exocoel while during transfiguration state, namely when the varying capacity needed is larger, slide control mechanism control first piston slides into the second predeterminated position to the upper position of the first annular groove, second predeterminated position is higher than above-mentioned first predeterminated position, open to make the first transfiguration hole, the distance risen due to first piston is larger, the pressure that first piston is applied to the first elastic component is less, the elastic pressure that first elastic component acts on the second piston is less, under the effect of inner chamber refrigerant pressure, the elastic force upwards jack-up of the second piston overpowers first elastic component, thus the second transfiguration hole is opened, refrigerant in inner chamber is pressed in the second annular groove by the second transfiguration hole, realize the transfiguration of inner chamber.So, transfiguration while achieving inner chamber and exocoel, varying capacity is larger.
In sum, the compressor that the utility model provides, only need by controlling slide control mechanism, and make slide control mechanism control the position of first piston in the first annular groove, reliably can control the transfiguration state of compressor, it is simple to operate, and reliability is higher.
The utility model additionally provides a kind of electrical products comprising above-mentioned variable conpacitance compressor, and these electrical products can be the electrical products that refrigerator, air conditioner etc. have compressor.Setting like this, the electrical products that the utility model provides, its compressor easy, reliably can realize transfiguration and control.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 is the sectional view of transfiguration scroll compressor in prior art;
Fig. 2 is that schematic diagram is arranged in the transfiguration hole of transfiguration scroll compressor in prior art;
Fig. 3 a is schematic diagram when variable conpacitance compressor is in non-transfiguration state in the utility model embodiment;
Fig. 3 b is the exocoel of variable conpacitance compressor in the utility model embodiment schematic diagram when being in transfiguration state;
Fig. 3 c is the interior exocoel of variable conpacitance compressor in the utility model embodiment schematic diagram when being simultaneously in transfiguration state;
Fig. 4 is fixed scroll plan view in the utility model embodiment;
Fig. 5 is fixed scroll sectional view in the utility model embodiment;
Fig. 6 is the plan view of the second piston in the utility model embodiment;
Fig. 7 is the worm's eye view of first piston in the utility model embodiment;
Fig. 8 is the sectional view of first piston in the utility model embodiment;
Fig. 9 is the plan view of the utility model embodiment cover plate;
Wherein, in Fig. 1 and Fig. 2:
Piston-1, bypass passageways-2, transfiguration hole-3, auxiliary transfiguration hole-4;
In Fig. 3-Fig. 9:
Fixed scroll-11, first piston-12, cover plate-13, the first annular groove-14, the second annular groove-15, the first transfiguration hole-16, the second transfiguration hole-17, the first elastic component-18, the second elastic component-19, Leak hole-20, annular groove-21, the first mounting groove-22, the second mounting groove-23, the second piston-25.
Embodiment
This embodiment provides a kind of variable conpacitance compressor, and its capacity-variable structure easily controls, and transfiguration reliability is better.This embodiment additionally provides a kind of electrical products comprising above-mentioned variable conpacitance compressor.
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to Fig. 3-Fig. 9, the variable conpacitance compressor that this embodiment provides, comprise fixed scroll 11, orbiter and cover plate 13.Wherein, orbiter coordinates with fixed scroll 11 and forms inner chamber and exocoel, and cover plate 13 is arranged at fixed scroll 11 top.
It should be noted that, in this embodiment, the bottom surface that the upper-end surface of fixed scroll 11 is provided with the first annular groove 14, first annular groove 14 is provided with the first transfiguration hole 16 and the second annular groove 15, second annular groove 15 are close to fixed scroll 11 central position compared with the first transfiguration hole 16.The bottom surface of the second annular groove 15 is provided with the second transfiguration hole 16, transfiguration hole 17, first and is connected with exocoel, the second transfiguration hole 17 and intracavity inter-connection.
Be provided with first piston 12 in first annular groove 14, be provided with the second piston 25 in the second annular groove 15, first piston 12 can slide up and down, and keeps tightness between the sidewall of the sidewall of first piston 12 and the first annular groove 14; Second piston 25 can slide up and down and is arranged in the second annular groove 15, and keeps tightness between the sidewall of the sidewall of the second piston 25 and the second annular groove 15.
The first elastic component 18 is provided with between second piston 25 and first piston 12, under the pressure effect of first piston 12, first elastic component 18 can produce elastic strain, and then can be applied to the second piston 25 elastic acting force, is pressed in the second annular groove 15 to make the second piston 25.
In addition, the variable conpacitance compressor that this embodiment provides also comprises the slide control mechanism of sliding in the first annular groove 14 for controlling first piston 12.
In this embodiment, slide control mechanism specific as followsly can state setting.
Slide control mechanism can comprise pressed gas supplier and Pneumatic controller, pressed gas supplier can be specially air pump, pressure control device can be specially pressure regulator valve, cover plate 13 can be provided with pressed gas entrance, when air pump is filled with barotropic gas to pressed gas entrance, air pressure is applied to the upper-end surface pressure of first piston 12, move downward to control first piston 12, when air pump is bled to pressed gas entrance, suction function, in first piston 12 upper-end surface, can control first piston 12 and move upward.
Certainly, slide control mechanism also can be the control mechanism of other type, such as, can also pass through driven by motor connecting rod means, by connecting rod means, the rotation of motor is converted to straight line motion, move up and down to drive first piston 12.The concrete form of connecting rod is comparatively ripe in mechanical transmission fields, repeats no more herein.Slide control mechanism also can be the form of electromagnet, by controlling electromagnet to the attraction force of first piston 12 or repulsive force, realizes moving up and down of first piston 12.
In addition, in the preferred version of this embodiment, second elastic component 19 can also be set between the lower end surface of first piston 12 and the bottom of the first annular groove 14, under the elastic force effect of the second elastic component 19, can reliably realize first piston 12 to top offset.In addition, above-mentioned first elastic component 18 and the second elastic component 19 can be specially spring, certainly, also can be the elastic component of other type, and such as, elastic steel sheet etc., as long as can provide elastic force.
For convenience of description, below content, take slide control mechanism as air control unit be example, introduction be described to the present embodiment.
When variable conpacitance compressor needs for non-transfiguration state, namely compressor operates with full capacity, now apply high pressure air muscle power in the upper-end surface of first piston 12, fitted with the bottom surface of the first groove and the bottom surface of the second groove respectively in the lower end surface of first piston 12 and the second piston 25, realize sealing, thus close the first transfiguration hole 16 and the second transfiguration hole 17.
When variable conpacitance compressor needs for exocoel transfiguration state, during the state that namely varying capacity is less, now on cover plate 13, apply medium pressure gas power, first piston 12 is subject to the gas pressure in the elastic force of spring and the first transfiguration hole 16, and put on the medium pressure gas pressure of upper-end surface, and the gas pressure > medium pressure gas power in spring force+transfiguration hole, first piston 12 moves up, until during spring force+transfiguration hole gas force=medium pressure gas power, first piston 12 stops sliding and remaining on state of equilibrium, and to leave the distance of the bottom surface of the first annular groove 14 less in the lower end surface of now first piston 12, under the elastic force effect of spring, second piston 25 still keeps static, second transfiguration hole 17 is still in closed state.
When exocoel in compressor needs transfiguration simultaneously, namely time to realize Large Copacity transfiguration state, now on cover plate 13, apply pressure of inspiration(Pi), elastic force due to spring makes first piston 12 continue to rise, the distance of the distance between first piston 12 and the bottom of the first annular groove 14 and first piston 12 and the second piston 25 increases gradually, when exceeding predefined value, spring reduces the pressure of the second piston 25, chamber pressure gas by the second transfiguration hole 17 upwardly the second piston 25, thus makes the second transfiguration hole 17 open.
In addition, it should be noted that the gas that the exocoel of compressor and inner chamber are leaked out by the first transfiguration hole 16 and the second transfiguration hole 17 is guided to the air aspiration cavity of compressor by Leak hole, then enter again in the inner chamber or exocoel that fixed scroll 11 and orbiter formed, form circulation.
The gas now leaked out by the first transfiguration hole 16 and the second transfiguration hole 17 is all discharged to air aspiration cavity by unified Leak hole 20, thus completes the object of interior exocoel transfiguration simultaneously.
In addition, in order to the resistance making the gas leaked out by the first transfiguration hole 16 and the second transfiguration hole 17 run into is less, in this embodiment, at least two Leak holes 20 can be set, and ensure that the summation area of Leak hole is more than 4 times of the cross-section area sum in the first transfiguration hole 16 and the second transfiguration hole 17, so can reduce Leakage Gas resistance significantly.
In addition, it should be noted that, in order to avoid pressed gas lets out by between first piston 12 and the first annular groove 14 and between the second piston 25 and the second annular groove 15, all can be provided with annular groove 21 at the sidewall of first piston 12 and the second piston 25, and all seal ring is installed in two annular grooves 21.Setting like this, effectively improves the sealing between first piston 12 and the first annular groove 14 and the sealing between the second piston 25 and the second annular groove 15.
In addition, in order to reduce the weight of first piston 12 and the second piston 25, first piston 12 and the second piston 25 all can be hollow structure.
Further, first elastic component 18 and the second elastic component 19 is conveniently installed, and prevent the first elastic component 18 and the second elastic component 19 from occurring the problem misplaced, in the preferred version of this embodiment, can be provided with the first mounting groove 22 for installing the first elastic component 18 in the upper-end surface of the lower end surface of first piston 12 and the second piston 25, the lower end surface of first piston 12 and the bottom surface of the first annular groove 14 are provided with the second mounting groove 23 for installing the second elastic component 19.
This embodiment additionally provides a kind of electrical products, and these electrical products can be the electrical products that air conditioner, drinking machine, refrigerator, refrigerator-freezer etc. have compressor, and the compressor of these electrical products is variable conpacitance compressor as above.Setting like this, the electrical products that present embodiment provides, its compressor reliably can realize transfiguration easily, and the derivation of the beneficial effect that the derivation of this beneficial effect and above-mentioned variable conpacitance compressor bring is substantially similar, therefore repeats no more herein.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a variable conpacitance compressor, comprise fixed scroll (11), the orbiter forming inner chamber and exocoel is coordinated with described fixed scroll, and be arranged at the cover plate (13) on described fixed scroll (11) top, it is characterized in that, the upper-end surface of described fixed scroll (11) is provided with the first annular groove (14), the bottom surface of described first annular groove (14) is provided with the first transfiguration hole (16) and the second annular groove (15), the bottom surface of described second annular groove (15) is provided with the second transfiguration hole (17), described first transfiguration hole (16) is connected with described exocoel, described second transfiguration hole (17) and described intracavity inter-connection, be provided with the first piston that can slide up and down (12) in described first annular groove (14), and keep tightness between the sidewall of the sidewall of described first piston (12) and described first annular groove (14), be provided with the second piston (25) that can slide up and down in described second annular groove (15), and keep tightness between the sidewall of the sidewall of described second piston (25) and described second annular groove (15), the first elastic component (18) is provided with between described second piston (25) and described first piston (12), also comprise the slide control mechanism of sliding in described first annular groove (14) for controlling described first piston (12).
2. variable conpacitance compressor as claimed in claim 1, is characterized in that, also comprise the second elastic component (19) between lower end surface and the bottom of described first annular groove (14) being arranged at described first piston (12).
3. variable conpacitance compressor as claimed in claim 2, it is characterized in that, described slide control mechanism comprises pressed gas supplier and Pneumatic controller, described cover plate (13) top is provided with pressed gas entrance, enters the upper-end surface applying pressure of described first annular groove (14) to described first piston (12) to make pressed gas.
4. variable conpacitance compressor as claimed in claim 1, it is characterized in that, the connecting rod means that described slide control mechanism comprises motor, one end is fixedly connected with the output shaft of described motor, the other end of described connecting rod means and the upper-end surface of described first piston are hinged.
5. variable conpacitance compressor as claimed in claim 1, it is characterized in that, described first annular groove (14) is provided with Leak hole (20), and described Leak hole (20) is connected with the air aspiration cavity of described variable conpacitance compressor.
6. variable conpacitance compressor as claimed in claim 5, it is characterized in that, the quantity of described Leak hole (20) is at least two, and the cross-section area sum of Leak hole described in each (20), be greater than four times of the cross-section area sum in the first transfiguration hole (16) and the second transfiguration hole (17).
7. variable conpacitance compressor as claimed in claim 1, it is characterized in that, the sidewall of described first piston (12) and described second piston (25) is equipped with annular groove (21), and is all provided with seal ring in two described annular grooves (21).
8. variable conpacitance compressor as claimed in claim 1, it is characterized in that, the inside of described first piston (12) and described second piston (25) has hollow-core construction.
9. variable conpacitance compressor as claimed in claim 2, it is characterized in that, the lower end surface of described first piston (12) and the upper-end surface of described second piston (25) are provided with the first mounting groove (22) for installing described first elastic component (18), and the lower end surface of described first piston (12) and the bottom surface of described first annular groove (14) are provided with the second mounting groove (23) for installing described second elastic component (19).
10. electrical products, comprise compressor, it is characterized in that, described compressor is the variable conpacitance compressor as described in any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420702402.1U CN204386880U (en) | 2014-11-20 | 2014-11-20 | Variable conpacitance compressor and comprise the electrical products of this variable conpacitance compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420702402.1U CN204386880U (en) | 2014-11-20 | 2014-11-20 | Variable conpacitance compressor and comprise the electrical products of this variable conpacitance compressor |
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| CN204386880U true CN204386880U (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420702402.1U Withdrawn - After Issue CN204386880U (en) | 2014-11-20 | 2014-11-20 | Variable conpacitance compressor and comprise the electrical products of this variable conpacitance compressor |
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| CN (1) | CN204386880U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604934A (en) * | 2014-11-20 | 2016-05-25 | 珠海格力节能环保制冷技术研究中心有限公司 | Variable capacity compressor and electric appliance product including variable capacity compressor |
| WO2017063503A1 (en) * | 2015-10-15 | 2017-04-20 | 珠海格力电器股份有限公司 | Capacity changing mechanism for scroll compressor, and scroll compressor |
-
2014
- 2014-11-20 CN CN201420702402.1U patent/CN204386880U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604934A (en) * | 2014-11-20 | 2016-05-25 | 珠海格力节能环保制冷技术研究中心有限公司 | Variable capacity compressor and electric appliance product including variable capacity compressor |
| CN105604934B (en) * | 2014-11-20 | 2017-11-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Variable conpacitance compressor and the electric equipment products including the variable conpacitance compressor |
| WO2017063503A1 (en) * | 2015-10-15 | 2017-04-20 | 珠海格力电器股份有限公司 | Capacity changing mechanism for scroll compressor, and scroll compressor |
| US10941774B2 (en) | 2015-10-15 | 2021-03-09 | Gree Electric Appliances, Inc. Of Zhuhai | Variable-capacity mechanism of scroll compressor and scroll compressor |
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Granted publication date: 20150610 Effective date of abandoning: 20171124 |
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| AV01 | Patent right actively abandoned |