CN105822528A - Diaphragm pump and water purifier - Google Patents
Diaphragm pump and water purifier Download PDFInfo
- Publication number
- CN105822528A CN105822528A CN201610273684.1A CN201610273684A CN105822528A CN 105822528 A CN105822528 A CN 105822528A CN 201610273684 A CN201610273684 A CN 201610273684A CN 105822528 A CN105822528 A CN 105822528A
- Authority
- CN
- China
- Prior art keywords
- pushing block
- bolt
- diaphragm
- membrane pump
- piston thrust
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 239000012528 membrane Substances 0.000 claims description 30
- 238000007789 sealing Methods 0.000 claims description 22
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 12
- 238000007906 compression Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 9
- 230000035515 penetration Effects 0.000 description 5
- 230000007306 turnover Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/06—Pumps having fluid drive
- F04B43/067—Pumps having fluid drive the fluid being actuated directly by a piston
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention provides a diaphragm pump and a water purifier. The diaphragm pump comprises a diaphragm, piston pushing blocks and a balance wheel, and further comprises seal rings arranged inside pushing block grooves, wherein the diaphragm is arranged between the piston pushing blocks and the balance wheel; the diaphragm, the piston pushing blocks and the balance wheel are fixedly connected through bolts; a plurality of piston pushing block mounting zones are arranged on the diaphragm; each piston pushing block mounting zone has a cylindrical bulge; a bolt through hole is formed in each cylindrical bulge; the pushing block grooves are formed in the tops of the piston pushing blocks; assembly through holes matched with peripheral surfaces of the cylindrical bulges are formed in the bottoms of the pushing block grooves; screws of the bolts are arranged in the bolt through holes in a penetrating manner to be fixed to the balance wheel; bolt heads of the bolts are pressed and connected at the outer parts of the pushing block grooves; and the seal rings are pressed and sealed inside the pushing block grooves. According to the diaphragm pump, the pulling between the piston pushing blocks and the diaphragm is avoided, so that the situation that a clearance is enlarged due to pulling deformation is prevented, the water seepage is avoided, and the reliability is improved.
Description
Technical field
The present invention relates to water purifier field, in particular to a kind of membrane pump and water purifier.
Background technology
In prior art, water purifier uses membrane pump (as shown in Figure 1) as supercharging original paper.In conjunction with Fig. 1 to shown in 5, membrane pump includes motor 1 and pump head, and pump head mainly includes upper cover, piston valve cover 20, diaphragm 30, escapement seat 40, escapement 50 and corresponding connector.Escapement 50 is connected with the output shaft of motor 1, and diaphragm 30 is fixed on escapement 50 and is tightly connected with piston valve cover 20, and after installation, diaphragm 30 is between escapement seat 40 and upper cover, and upper cover is connected by connector with escapement seat 40, and is sealed by sealing ring 80.Constituting working area between upper cover and diaphragm 30, escapement 50 constitutes power-section by escapement seat 40 and motor 1.Three piston thrust blocks 60 that diaphragm 30 upper surface is uniformly arranged, and three compression chambers constituting booster pump are coordinated with three chambers of piston valve cover 20, piston thrust block 60 in compression chamber drives diaphragm 30 to do reciprocating motion repeatedly under the drive of escapement 50, water is sucked from low pressure chamber pressure, compressed chamber presses to altitude chamber, it is achieved function of increasing pressure, the most also to ensure intact water segregation, prevent the water penetration in compression chamber to be leaked to power-section, damage motor 1.
Fig. 4 and Fig. 5 is prior art: diaphragm 30 is made up of elastic plastic material, for having the triangle of fillet, piston thrust block 60 is matched with the trapezoidal locating piece 33 on diaphragm 30 by four trapezoidal locating slots 63 of bottom and plays positioning action, assembling through hole 62 diameter is slightly larger than the external diameter of the cylindrical protrusions 31 of diaphragm 30 upper surface, but it is the most lower slightly, both through hole alignment, fixed with following escapement 50 by bolt 70 again, bolt head root is rounding (as shown in label A in Fig. 4), when bolt 70 is urgent, bolt head root rounding can the part that exceeds of extruded cylindrical projection 31 be turned-out folds into into pushing block groove 61, play the effect preventing the water penetration in compression chamber to be leaked to power-section.
After using the booster pump longtime running of such scheme, piston thrust block 60 on diaphragm 30 drives diaphragm 30 in reciprocatory movement repeatedly, originally the bottom surface contacting good piston thrust block 60 can be opened with diaphragm 30 upper surface, make to assemble the gap increase that through hole 62 deforms, assembles between through hole 62 and the cylindrical protrusions 31 being bolted 70 extruding turnovers, water in compression chamber will penetrate into power-section, causes motor 1 to damage.
Summary of the invention
It is desirable to provide a kind of membrane pump improving reliability and water purifier.
The invention provides a kind of membrane pump, including diaphragm, piston thrust block and escapement, diaphragm is arranged between piston thrust block and escapement, and diaphragm, piston thrust block and escapement are bolted to connection；Being provided with multiple piston thrust block installing zone on diaphragm, each piston thrust block installing zone has a cylindrical protrusions, cylindrical protrusions has bolt hole；The top of piston thrust block is provided with pushing block groove, and the bottom of pushing block groove is provided with the assembling through hole that the outer peripheral face with cylindrical protrusions coordinates；Membrane pump also includes the sealing ring being arranged in pushing block groove；The screw rod of bolt is located in bolt hole and fixes with escapement, and the bolt head of bolt is crimped on the outside of pushing block groove, and by sealing ring press seal in pushing block groove.
Further, the diameter of the bolt head of bolt is more than the diameter of pushing block groove.
Further, membrane pump also includes the pad coordinated with bolt, and pad external diameter is more than the diameter of pushing block groove.
Further, the top of cylindrical protrusions is concordant with the top of pushing block groove.
Further, the top of cylindrical protrusions is concordant with the bottom of pushing block groove.
Further, the bolt head of bolt is vertical with screw rod to be connected, and at the root formation right angle connecting portion of screw rod.
Further, circumferential positioning structure it is provided with between diaphragm and piston thrust block.
Further, circumferential positioning structure includes the multiple positioning convex being arranged on cylindrical protrusions root, and on piston thrust block, corresponding multiple positioning convex are provided with multiple detent.
Further, sealing ring is O-ring seals, and the diameter of the cross section of O-ring seals is more than the height of pushing block groove.
Present invention also offers a kind of water purifier, including aforesaid membrane pump.
Membrane pump according to the present invention and water purifier, by the sealing ring in pushing block groove, and make the bolt head of bolt be crimped on the outside of pushing block groove, and by sealing ring press seal in pushing block groove, owing to bolt head directly coordinates with the outside of the pushing block groove of piston thrust block, namely directly piston thrust block is fixed on escapement, the fixed form of the cylindrical protrusions on the diaphragm of middle bolt head extruding turnover, avoid pullling between piston thrust block and diaphragm, thus prevent the gap caused because pullling deformation from increasing, avoid infiltration, improve reliability.
Accompanying drawing explanation
The accompanying drawing of the part constituting the application is used for providing a further understanding of the present invention, and the schematic description and description of the present invention is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the decomposition texture schematic diagram of membrane pump of the prior art；
Fig. 2 is the perspective view of diaphragm of the prior art；
Fig. 3 is the perspective view of piston thrust block of the prior art；
Fig. 4 is the corresponding relation schematic diagram of diaphragm of the prior art, piston thrust block and bolt；
Fig. 5 is the assembling schematic diagram of diaphragm of the prior art, piston thrust block and bolt；
Fig. 6 is the corresponding relation schematic diagram of diaphragm according to a first embodiment of the present invention, piston thrust block and bolt；
Fig. 7 is the assembling schematic diagram of diaphragm according to a first embodiment of the present invention, piston thrust block and bolt；
Fig. 8 is the corresponding relation schematic diagram of diaphragm according to a second embodiment of the present invention, piston thrust block and bolt；
Fig. 9 is the assembling schematic diagram of diaphragm according to a second embodiment of the present invention, piston thrust block and bolt；
Figure 10 is the corresponding relation schematic diagram of diaphragm according to a third embodiment of the present invention, piston thrust block and bolt；
Figure 11 is the assembling schematic diagram of diaphragm according to a third embodiment of the present invention, piston thrust block and bolt；
Description of reference numerals:
10, pump upper cover；20, piston valve cover；30, diaphragm；31, cylindrical protrusions；32, bolt hole；33, trapezoidal locating piece；40, escapement seat；50, escapement；60, piston thrust block；61, pushing block groove；62, assembling through hole；63, trapezoidal locating slot；70, bolt；80, sealing ring；90, pad；1, motor；A, bolt head root rounding；B, bolt head root right angle.
Detailed description of the invention
Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As Fig. 6 is to shown in 11, and according to the membrane pump of the present invention, including diaphragm 30, piston thrust block 60 and escapement 50, diaphragm 30 is arranged between piston thrust block 60 and escapement 50, and diaphragm 30, piston thrust block 60 and escapement 50 connect by bolt 70 is fixing；Being provided with multiple piston thrust block 60 installing zone on diaphragm 30, each piston thrust block 60 installing zone has a cylindrical protrusions 31, cylindrical protrusions 31 has bolt hole 32；The top of piston thrust block 60 is provided with pushing block groove 61, and the bottom of pushing block groove 61 is provided with the assembling through hole 62 that the outer peripheral face with cylindrical protrusions 31 coordinates；Membrane pump also includes the sealing ring 80 being arranged in pushing block groove 61；The screw rod of bolt 70 is located in bolt hole 32 and fixes with escapement 50, and the bolt head of bolt 70 is crimped on the outside of pushing block groove 61, and by sealing ring 80 press seal in pushing block groove 61.The present invention is by the sealing ring 80 in pushing block groove 61, and make the bolt head of bolt 70 be crimped on the outside of pushing block groove 61, and by sealing ring 80 press seal in pushing block groove 61, owing to bolt head directly coordinates with the outside of the pushing block groove 61 of piston thrust block 60, namely directly piston thrust block 60 is fixed on escapement 50, the fixed form of the cylindrical protrusions 31 on the diaphragm 30 of middle bolt head extruding turnover, avoid pullling between piston thrust block 60 and diaphragm 30, thus prevent the gap caused because pullling deformation from increasing, avoid infiltration, improve reliability.
In the present invention, bolt 70 is unlike rounding in prior art, the bolt head of the bolt 70 of the present invention is vertical with screw rod to be connected, and at the root formation right angle connecting portion of screw rod, namely bolt head root right angle (as shown in label B in Fig. 6,8 and 10), it is thus possible to be conducive to compressing sealing ring 80 and piston thrust block 60.Specifically, embodiments of the invention are illustrated in conjunction with Fig. 6 to 11.
In first embodiment as shown in Figure 6 and Figure 7, diaphragm 30 is made up of elastic plastic material, for triangle with rounded corners, it is divided into upper and lower surface, upper surface to be uniformly distributed three piston thrust block 60 installing zones, each piston thrust block 60 installing zone has a cylindrical protrusions 31, there is in cylindrical protrusions 31 bolt hole 32, accordingly, piston thrust block 60 is provided with assembling through hole 62, assembling through hole 62 coordinates with the outer peripheral face of cylindrical protrusions 31
It addition, be provided with circumferential positioning structure between diaphragm 30 and piston thrust block 60, it is preferable that circumferential positioning structure includes the multiple positioning convex being arranged on cylindrical protrusions 31 root, and on piston thrust block 60, corresponding multiple positioning convex are provided with multiple detent.Further, positioning convex is four trapezoidal locating pieces 33 of the root being arranged on cylindrical protrusions 31, detent is the trapezoidal locating slots 63 of four be correspondingly arranged on piston thrust block 60, and trapezoidal locating piece 33 coordinates with trapezoidal locating slot 63 one_to_one corresponding, plays circumferentially positioned effect.
Coordinate three compression chambers constituting booster pump with three chambers of piston valve cover 20 after piston thrust block 60 is set on equally distributed three piston thrust block 60 installing zones of diaphragm 30 upper surface, piston thrust block 60 in compression chamber drives diaphragm 30 to do reciprocating motion repeatedly under the drive of escapement 50, water is sucked from low pressure chamber pressure, compressed chamber presses to altitude chamber, it is achieved function of increasing pressure.
Specifically, as shown in Figure 7, in the first embodiment, after assembling, the top of cylindrical protrusions 31 is concordant with the top of pushing block groove 61, namely cylindrical protrusions 31 is equal to height and the height sum of pushing block groove 61 of assembling through hole 62, and assembling through hole 62 is equal with the external diameter of the cylindrical protrusions 31 of diaphragm 30 upper surface, both through hole alignment, then fixed with following escapement 50 by bolt 70.
More specifically, in the first embodiment, the screw root of bolt 70 is right angle, the diameter of bolt head is more than pushing block groove 61 diameter, is provided with sealing ring 80, preferably in pushing block groove 61, sealing ring 80 uses O-ring seals, and the diameter of the cross section of O-ring seals is more than the height of pushing block groove 61.When bolt 70 is urgent, bolt head section is pressed down against the O-ring seals in pushing block groove 61 so that it is compressive deformation, forms end face seal, prevents the water penetration of compression chamber from damaging motor 1 to power-section.The outer of bolt head is directly squeezed in the piston thrust block 60 part beyond pushing block groove 61 so that piston thrust block 60 is directly connected by bolt 70 with escapement 50, it is to avoid pull diaphragm 30 and cylindrical protrusions thereon 31, improves reliability.
As shown in Figure 8 and Figure 9, in the second embodiment of the present invention, unlike first embodiment, in a second embodiment, the top of cylindrical protrusions 31 is concordant with the bottom of pushing block groove 61, namely the height of assembling through hole 62 is equal with the height of cylindrical protrusions 31, when bolt 70 is urgent, bolt head root section is pressed down against the O-ring seals in pushing block groove 61 so that it is compressive deformation, form end face seal, prevent the water penetration of compression chamber from damaging motor 1 to power-section.
In a second embodiment, owing to reducing cylindrical protrusions 31 height, so that the O-ring seals of crimp can directly contact the edge of sealing bolt 70, compare first embodiment, it is possible to improve sealing effectiveness further, prevent from running seeps water.
As shown in FIG. 10 and 11, in the third embodiment of the present invention, on the basis of first embodiment or the second embodiment, increasing and be provided with pad 90, pad 90 external diameter is more than the diameter of pushing block groove 61, when bolt 70 is urgent, bolt head root section is pressed down against the O-ring seals in gasket seal 90, and then extruding pushing block groove 61 so that it is compressive deformation, form end face seal, prevent the water penetration of compression chamber from damaging motor 1 to power-section.By arranging pad 90, improve reliability, the diameter diameter less than pushing block groove 61 of bolt head can be made.
Present invention also offers a kind of water purifier, use aforesaid membrane pump, be prevented effectively from the compression chamber water leakage problems to power-section, it is achieved that compression chamber and the intact sealing of power-section, improve the reliability of membrane pump longtime running.
As can be seen from the above description, the above embodiments of the present invention achieve following technique effect:
Membrane pump according to the present invention and water purifier, by the sealing ring 80 in pushing block groove 61, and make the bolt head of bolt 70 be crimped on the outside of pushing block groove 61, and by sealing ring 80 press seal in pushing block groove 61, owing to bolt head directly coordinates with the outside of the pushing block groove 61 of piston thrust block 60, namely directly piston thrust block 60 is fixed on escapement 50, the fixed form of the cylindrical protrusions 31 on the diaphragm 30 of middle bolt head extruding turnover, avoid pullling between piston thrust block 60 and diaphragm 30, thus prevent the gap caused because pullling deformation from increasing, avoid infiltration, improve reliability.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (10)
1. a membrane pump, including diaphragm (30), piston thrust block (60) and escapement (50), described diaphragm (30) is arranged between described piston thrust block (60) and described escapement (50), and described diaphragm (30), described piston thrust block (60) and described escapement (50) connect by bolt (70) is fixing；It is characterized in that,
Multiple piston thrust block (60) installing zone it is provided with on described diaphragm (30), each described piston thrust block (60) installing zone has a cylindrical protrusions (31), and described cylindrical protrusions (31) has bolt hole (32)；
The top of described piston thrust block (60) is provided with pushing block groove (61), and the bottom of described pushing block groove (61) is provided with the assembling through hole (62) that the outer peripheral face with described cylindrical protrusions (31) coordinates；
Described membrane pump also includes the sealing ring (80) being arranged in described pushing block groove (61)；
The screw rod of described bolt (70) is located in described bolt hole (32) and fixes with described escapement (50), and the bolt head of described bolt (70) is crimped on the outside of described pushing block groove (61), and by described sealing ring (80) press seal in described pushing block groove (61).
Membrane pump the most according to claim 1, it is characterised in that
The diameter of the bolt head of described bolt (70) is more than the diameter of described pushing block groove (61).
Membrane pump the most according to claim 1, it is characterised in that
Described membrane pump also includes the pad (90) coordinated with described bolt (70), and described pad (90) external diameter is more than the diameter of described pushing block groove (61).
4. according to the membrane pump described in Claims 2 or 3, it is characterised in that
The top of described cylindrical protrusions (31) is concordant with the top of described pushing block groove (61).
5. according to the membrane pump described in Claims 2 or 3, it is characterised in that
The top of described cylindrical protrusions (31) is concordant with the bottom of described pushing block groove (61).
6. according to the membrane pump described in Claims 2 or 3, it is characterised in that
The bolt head of described bolt (70) is vertical with screw rod to be connected, and at the root formation right angle connecting portion of described screw rod.
7. according to the membrane pump described in Claims 2 or 3, it is characterised in that
It is provided with circumferential positioning structure between described diaphragm (30) and piston thrust block (60).
Membrane pump the most according to claim 7, it is characterised in that
Described circumferential positioning structure includes the multiple positioning convex being arranged on described cylindrical protrusions (31) root,
The upper corresponding the plurality of positioning convex of described piston thrust block (60) is provided with multiple detent.
Membrane pump the most according to claim 1, it is characterised in that
Described sealing ring (80) is O-ring seals, and the diameter of the cross section of described O-ring seals is more than the height of described pushing block groove (61).
10. a water purifier, including membrane pump, it is characterised in that described membrane pump is the membrane pump according to any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610273684.1A CN105822528B (en) | 2016-04-27 | 2016-04-27 | diaphragm pump and water purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610273684.1A CN105822528B (en) | 2016-04-27 | 2016-04-27 | diaphragm pump and water purifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105822528A true CN105822528A (en) | 2016-08-03 |
| CN105822528B CN105822528B (en) | 2018-04-13 |
Family
ID=56527726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610273684.1A Active CN105822528B (en) | 2016-04-27 | 2016-04-27 | diaphragm pump and water purifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105822528B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114542437A (en) * | 2022-03-02 | 2022-05-27 | 安徽智泓净化科技股份有限公司 | High-sealing booster pump with sealing assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4610605A (en) * | 1985-06-25 | 1986-09-09 | Product Research And Development | Triple discharge pump |
| CN2890409Y (en) * | 2006-04-30 | 2007-04-18 | 蔡应麟 | Diaphragm and piston thrust block for reverse osmosis booster pump |
| CN201553369U (en) * | 2009-10-30 | 2010-08-18 | 北汽福田汽车股份有限公司 | Sealed container with discharge port |
| CN202790527U (en) * | 2012-09-24 | 2013-03-13 | 贵州长征电力设备有限公司 | Sealing device for oil chamber ablassschraube of on-load tap-changer |
| CN205714689U (en) * | 2016-04-27 | 2016-11-23 | 珠海格力节能环保制冷技术研究中心有限公司 | Membrane pump and water purifier |
-
2016
- 2016-04-27 CN CN201610273684.1A patent/CN105822528B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4610605A (en) * | 1985-06-25 | 1986-09-09 | Product Research And Development | Triple discharge pump |
| CN2890409Y (en) * | 2006-04-30 | 2007-04-18 | 蔡应麟 | Diaphragm and piston thrust block for reverse osmosis booster pump |
| CN201553369U (en) * | 2009-10-30 | 2010-08-18 | 北汽福田汽车股份有限公司 | Sealed container with discharge port |
| CN202790527U (en) * | 2012-09-24 | 2013-03-13 | 贵州长征电力设备有限公司 | Sealing device for oil chamber ablassschraube of on-load tap-changer |
| CN205714689U (en) * | 2016-04-27 | 2016-11-23 | 珠海格力节能环保制冷技术研究中心有限公司 | Membrane pump and water purifier |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114542437A (en) * | 2022-03-02 | 2022-05-27 | 安徽智泓净化科技股份有限公司 | High-sealing booster pump with sealing assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105822528B (en) | 2018-04-13 |
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Effective date of registration: 20181122 Address after: 519070, Jinji Hill Road, front hill, Zhuhai, Guangdong Co-patentee after: GREE GREEN REFRIGERATION TECHNOLOGY CENTER Co.,Ltd. OF ZHUHAI Patentee after: GREE ELECTRIC APPLIANCES,Inc.OF ZHUHAI Address before: 519070 science and technology building, 789 Jinji Road, Qianshan, Zhuhai, Guangdong Patentee before: GREE GREEN REFRIGERATION TECHNOLOGY CENTER Co.,Ltd. OF ZHUHAI |