CN110594923A - Anti-frosting heat pump air conditioning system - Google Patents
Anti-frosting heat pump air conditioning system Download PDFInfo
- Publication number
- CN110594923A CN110594923A CN201910984873.3A CN201910984873A CN110594923A CN 110594923 A CN110594923 A CN 110594923A CN 201910984873 A CN201910984873 A CN 201910984873A CN 110594923 A CN110594923 A CN 110594923A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- pipeline
- air
- refrigerating fluid
- refrigerant
- 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.)
- Pending
Links
- 238000004378 air conditioning Methods 0.000 title claims abstract description 11
- 239000012530 fluid Substances 0.000 claims abstract description 53
- 239000003507 refrigerant Substances 0.000 claims abstract description 32
- 238000001035 drying Methods 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 9
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 6
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 7
- 238000007710 freezing Methods 0.000 abstract description 3
- 230000008014 freezing Effects 0.000 abstract description 3
- 239000012809 cooling fluid Substances 0.000 abstract 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0003—Exclusively-fluid systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/003—Filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/006—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass for preventing frost
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Combustion & Propulsion (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The anti-frosting heat pump air-conditioning system comprises a compressor, an indoor side heat exchanger fan, an expansion valve, an outdoor side heat exchanger, a surface contact type heat exchanger, an air blower, a refrigerant circulating pipeline, an air inlet and outlet pipeline, a drying filter, refrigerating fluid, a refrigerating fluid circulating pipeline and a refrigerating fluid circulating pump, wherein the refrigerant pipelines on one side of the compressor, the indoor side heat exchanger, the expansion valve and the outdoor side heat exchanger are sequentially connected in series through the refrigerant circulating pipeline, and the refrigerating fluid circulating pump and the refrigerating fluid pipeline on the other side of the outdoor side heat exchanger are sequentially connected in series in the refrigerating fluid circulating pipeline. The invention comprises three circulation loops, namely a refrigerant circulation loop, a refrigerating fluid circulation loop and an air circulation loop, wherein the refrigerant and the cooling fluid finish heat exchange in the outdoor heat exchanger, and the refrigerant and the air finish heat exchange in the surface contact type heat exchanger. The invention can solve the problem that the heat exchanger at the outer side of the heating chamber of the existing heat pump air conditioner is frosted or frozen in a low-temperature environment by utilizing the characteristic that the temperature of refrigerating fluid is lower than the freezing point.
Description
Technical Field
The invention relates to a heat pump air conditioning system in the technical field of air conditioners, in particular to an anti-frosting heat pump air conditioning system which prevents frosting by using refrigerating fluid.
Background
The heat pump type air conditioner is based on the common air conditioner, and has one four-way reversing valve installed to alter the operation of the valve, so that the functions of the evaporator and the condenser of the air conditioner may be interchanged to change the indoor air cooling function into indoor air heating function. The air conditioner which can extract heat from outdoor lower air in winter to heat indoor air and remove heat from indoor air in summer to transfer heat to outdoor is called heat pump type air conditioner.
However, in the low temperature heating mode of the air conditioner, the outdoor side evaporator needs to absorb heat in the external environment to supply heat to the indoor side for heating. In the working mode, the heat of the external environment can be obtained only when the temperature of the outdoor heat exchanger is at least 5K lower than the temperature of the outdoor environment, most working conditions of the surface temperature of the outdoor heat exchanger are about-10 ℃ in the heating mode in the conventional R134a heat pump system, and the condition of frosting or icing is easily generated when outdoor wet air exchanges heat on the surface of the heat exchanger, so that the air conditioning system cannot normally work.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an anti-frosting heat pump air-conditioning system which can solve the problem that the heat exchanger at the outer side of a heating chamber of the existing heat pump air-conditioner is frosted or frozen in a low-temperature environment by utilizing the characteristic that the temperature of refrigerating fluid is lower than the freezing point.
The invention is realized by the following technical scheme, the invention comprises a compressor, an indoor side heat exchanger fan, an expansion valve, an outdoor side heat exchanger, a surface contact type heat exchanger, a blower, a refrigerant circulating pipeline, an air outlet pipeline, a drying filter, an air inlet pipeline, refrigerating fluid, a refrigerating fluid circulating pipeline and a refrigerating fluid circulating pump, wherein the refrigerant pipeline and the refrigerating fluid pipeline are respectively arranged at two sides of the outdoor side heat exchanger; the drying filter is arranged in the middle of the surface contact type heat exchanger, the refrigerating fluid is arranged at the bottom of the surface contact type heat exchanger, the inlet end of a refrigerating fluid circulating pipeline is communicated with the bottom of the surface contact type heat exchanger, the outlet end of the refrigerating fluid circulating pipeline penetrates through the top of the surface contact type heat exchanger and then extends into the refrigerating fluid, a refrigerating fluid circulating pump and a refrigerating fluid pipeline on the other side of the outdoor side heat exchanger are sequentially connected in series in the refrigerating fluid circulating pipeline, and the refrigerating fluid circulating pump is positioned at the upstream of the outdoor side heat exchanger; the air inlet of the air inlet pipeline is connected with the air outlet of the blower, and the air outlet of the air inlet pipeline is communicated with the bottom of the surface contact type heat exchanger; the air inlet of the air outlet pipeline is communicated with the top of the surface contact type heat exchanger, and the air outlet of the air outlet pipeline is communicated with the atmosphere.
Further, in the invention, the outdoor heat exchanger is a plate heat exchanger, and the refrigerating fluid is a mixture of water and glycol.
Further, in the present invention, the air inlet pipeline has a plurality of air outlets, and the air outlets are arranged in an array at the bottom of the surface-contact heat exchanger.
Further, in the present invention, the top of the surface contact heat exchanger has an arc-shaped structure, and the bottom has a cylindrical structure.
Compared with the prior art, the invention has the following beneficial effects: the invention has reasonable design and simple structure, and can solve the problem that the heat exchanger at the outer side of the heating chamber of the existing heat pump air conditioner frosts or freezes in a low-temperature environment by utilizing the characteristic of freezing point of refrigerating fluid at minus 38 ℃.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
wherein: 1. the system comprises a compressor, 2, an indoor side heat exchanger, 3, an indoor side heat exchanger fan, 4, an expansion valve, 5, an outdoor side heat exchanger, 6, a surface contact type heat exchanger, 7, a blower, 8, a refrigerant circulating pipeline, 9, an air outlet pipeline, 10, a drying filter, 11, an air inlet pipeline, 12, refrigerating fluid, 13, a refrigerating fluid circulating pipeline, 14 and a refrigerating fluid circulating pump.
Detailed Description
The following embodiments of the present invention are described in detail with reference to the accompanying drawings, and the embodiments and specific operations of the embodiments are provided on the premise of the technical solution of the present invention, but the scope of the present invention is not limited to the following embodiments.
Examples
Embodiment as shown in fig. 1, the present invention includes a compressor 1, an indoor heat exchanger 2, an indoor heat exchanger fan 3, an expansion valve 4, an outdoor heat exchanger 5, a surface contact heat exchanger 6, a blower 7, a refrigerant circulation pipeline 8, an air outlet pipeline 9, a drying filter 10, an air inlet pipeline 11, a refrigerant liquid 12, a refrigerant liquid circulation pipeline 13, and a refrigerant liquid circulation pump 14, where two sides of the outdoor heat exchanger 5 are respectively a refrigerant pipeline and a refrigerant liquid pipeline, the refrigerant pipelines of the compressor 1, the indoor heat exchanger 2, the expansion valve 4, and one side of the outdoor heat exchanger 5 are connected in series in sequence through the refrigerant circulation pipeline 8, and the indoor heat exchanger fan 3 is disposed at one side of the indoor heat exchanger 2; the drying filter 10 is arranged in the middle of the surface contact type heat exchanger 6, the refrigerating fluid 12 is arranged at the bottom of the surface contact type heat exchanger 6, the inlet end of a refrigerating fluid circulating pipeline 13 is communicated with the bottom of the surface contact type heat exchanger 6, the outlet end of the refrigerating fluid circulating pipeline 13 penetrates through the top of the surface contact type heat exchanger 6 and then extends into the refrigerating fluid 12, a refrigerating fluid circulating pump 14 and a refrigerating fluid pipeline on the other side of the outdoor side heat exchanger 5 are sequentially connected in series in the refrigerating fluid circulating pipeline 13, and the refrigerating fluid circulating pump 14 is located at the upstream of the outdoor side heat exchanger 5; an air inlet of the air inlet pipeline 11 is connected with an air outlet of the blower 7, and an air outlet of the air inlet pipeline 11 is communicated with the bottom of the surface contact type heat exchanger 6; an air inlet of the air outlet pipeline 9 is communicated with the top of the surface contact type heat exchanger 6, and an air outlet of the air outlet pipeline 9 is communicated with the atmosphere. The outdoor heat exchanger 5 is a plate heat exchanger, and the refrigerating fluid 12 is a mixture of water and glycol. The air inlet pipeline 11 has a plurality of air outlets and is arranged in an array at the bottom of the surface-contact heat exchanger 6. The top of the surface contact type heat exchanger 6 is of an arc-shaped structure, and the bottom of the surface contact type heat exchanger is of a cylindrical structure.
The invention comprises three circulation loops, namely a refrigerant circulation loop, a refrigerating fluid circulation loop and an air circulation loop.
In the implementation process of the invention, refrigerant vapor is compressed into high-temperature and high-pressure vapor under the action of the compressor 1, and the high-temperature and high-pressure vapor is cooled by outside air in the condenser 2 to release heat to form high-pressure supercooled refrigerant liquid; the high-pressure super-cooled refrigerant is throttled into a low-pressure low-temperature saturated refrigerant through the expansion valve 4, absorbs the heat of refrigerating fluid in the outdoor heat exchanger 5, is vaporized and superheated, and then returns to the compressor 1 for cyclic compression, so that the circulation of a refrigerant loop is completed.
Refrigerating fluid in the outdoor heat exchanger 5 forms refrigerating fluid with lower temperature after being absorbed by refrigerant, returns to the surface contact heat exchanger 6 through a refrigerating fluid circulating pipeline 13, performs mixed heat exchange with air in the environment in the surface contact heat exchanger 6, absorbs heat in the air, is conveyed to the outdoor heat exchanger 5 through a refrigerating fluid circulating pump 14 after the temperature is increased, and then releases heat to the refrigerant with low temperature and low pressure. After releasing heat in the outdoor heat exchanger 5, the refrigerant returns to the surface contact heat exchanger 6 again to form a refrigerant fluid circulation.
The air in the surface contact type heat exchanger 6 comes from the atmospheric environment, is transported to the surface contact type heat exchanger 6 by the centrifugal fan 7, and after fully exchanging heat with the low-temperature refrigerating fluid in the surface contact type heat exchanger 6, flows into the atmosphere through the air outlet pipeline 9, and completes the circulation of the air loop.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (4)
1. An anti-frosting heat pump air conditioning system comprises a compressor (1), an indoor side heat exchanger (2), an indoor side heat exchanger fan (3), an expansion valve (4) and an outdoor side heat exchanger (5), the air conditioner is characterized by further comprising a surface contact type heat exchanger (6), an air blower (7), a refrigerant circulating pipeline (8), an air outlet pipeline (9), a drying filter (10), an air inlet pipeline (11), refrigerating liquid (12), a refrigerating liquid circulating pipeline (13) and a refrigerating liquid circulating pump (14), wherein the refrigerant pipeline and the refrigerating liquid pipeline are respectively arranged on two sides of the outdoor side heat exchanger (5), the refrigerant pipelines on one sides of the compressor (1), the indoor side heat exchanger (2), the expansion valve (4) and the outdoor side heat exchanger (5) are sequentially connected in series through the refrigerant circulating pipeline (8), and the indoor side heat exchanger fan (3) is arranged on one side of the indoor side heat exchanger (2); the drying filter (10) is arranged in the middle of the surface contact type heat exchanger (6), the refrigerating fluid (12) is arranged at the bottom of the surface contact type heat exchanger (6), the inlet end of a refrigerating fluid circulating pipeline (13) is communicated with the bottom of the surface contact type heat exchanger (6), the outlet end of the refrigerating fluid circulating pipeline (13) penetrates through the top of the surface contact type heat exchanger (6) and then extends into the refrigerating fluid (12), a refrigerating fluid circulating pump (14) and a refrigerating fluid pipeline on the other side of the outdoor side heat exchanger (5) are sequentially connected in series in the refrigerating fluid circulating pipeline (13), and the refrigerating fluid circulating pump (14) is located on the upstream of the outdoor side heat exchanger (5); an air inlet of the air inlet pipeline (11) is connected with an air outlet of the blower (7), and an air outlet of the air inlet pipeline (11) is communicated with the bottom of the surface contact type heat exchanger (6); an air inlet of the air outlet pipeline (9) is communicated with the top of the surface contact type heat exchanger (6), and an air outlet of the air outlet pipeline (9) is communicated with the atmosphere.
2. The anti-frosting heat pump air-conditioning system according to claim 1, wherein the outdoor heat exchanger (5) is a plate heat exchanger, and the refrigerant fluid (12) is a mixture of water and glycol.
3. The anti-frosting heat pump air-conditioning system according to claim 1, characterized in that the air inlet pipeline (11) has a plurality of air outlets arranged in an array at the bottom of the surface-contact heat exchanger (6).
4. The anti-frosting heat pump air-conditioning system according to claim 1, wherein the top of the surface contact heat exchanger (6) is of a circular arc structure, and the bottom is of a cylindrical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910984873.3A CN110594923A (en) | 2019-10-16 | 2019-10-16 | Anti-frosting heat pump air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910984873.3A CN110594923A (en) | 2019-10-16 | 2019-10-16 | Anti-frosting heat pump air conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110594923A true CN110594923A (en) | 2019-12-20 |
Family
ID=68849690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910984873.3A Pending CN110594923A (en) | 2019-10-16 | 2019-10-16 | Anti-frosting heat pump air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110594923A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES486348A1 (en) * | 1978-11-14 | 1980-05-16 | Xeda International | Refrigerating plant for cold chambers - incorporates direct contact of air from chamber with refrigerated liq. circulating in closed cycle optimising heat exchange conditions |
| KR20010067995A (en) * | 2001-04-13 | 2001-07-13 | 이춘희 | The method and apparatus for heating and unheated system |
| CN2682344Y (en) * | 2003-12-11 | 2005-03-02 | 河南新飞电器有限公司 | Heat pump installation for cold area |
| CN1828185A (en) * | 2006-03-28 | 2006-09-06 | 王全龄 | Heat pump type air conditioner especially suitable for highly effective heating operation under low temperature |
| CN101413739A (en) * | 2008-02-04 | 2009-04-22 | 吴雅琪 | Double-effect heat pump circulation three-effect heat exchanger |
| WO2010023986A1 (en) * | 2008-08-25 | 2010-03-04 | シャープ株式会社 | Air conditioner |
| KR20100078074A (en) * | 2008-12-30 | 2010-07-08 | 유인석 | System of heat pump for cooling and heating of middle pressure cycle for air heat source |
| CN203518099U (en) * | 2013-09-30 | 2014-04-02 | 上海德明医用设备工程有限公司 | Outdoor direct anti-freezing cold-taking device used in cold seasons |
| CN205481503U (en) * | 2016-04-05 | 2016-08-17 | 杨长义 | Use temperature regulation apparatus of circulation refrigerating fluid as medium |
| CN107228428A (en) * | 2017-07-17 | 2017-10-03 | 西安建筑科技大学 | A kind of full air-conditioning system of family formula fresh air purifying |
| CN210772602U (en) * | 2019-10-16 | 2020-06-16 | 上海热翼智能科技有限公司 | Anti-frosting heat pump air conditioning system |
-
2019
- 2019-10-16 CN CN201910984873.3A patent/CN110594923A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES486348A1 (en) * | 1978-11-14 | 1980-05-16 | Xeda International | Refrigerating plant for cold chambers - incorporates direct contact of air from chamber with refrigerated liq. circulating in closed cycle optimising heat exchange conditions |
| KR20010067995A (en) * | 2001-04-13 | 2001-07-13 | 이춘희 | The method and apparatus for heating and unheated system |
| CN2682344Y (en) * | 2003-12-11 | 2005-03-02 | 河南新飞电器有限公司 | Heat pump installation for cold area |
| CN1828185A (en) * | 2006-03-28 | 2006-09-06 | 王全龄 | Heat pump type air conditioner especially suitable for highly effective heating operation under low temperature |
| CN101413739A (en) * | 2008-02-04 | 2009-04-22 | 吴雅琪 | Double-effect heat pump circulation three-effect heat exchanger |
| WO2010023986A1 (en) * | 2008-08-25 | 2010-03-04 | シャープ株式会社 | Air conditioner |
| KR20100078074A (en) * | 2008-12-30 | 2010-07-08 | 유인석 | System of heat pump for cooling and heating of middle pressure cycle for air heat source |
| CN203518099U (en) * | 2013-09-30 | 2014-04-02 | 上海德明医用设备工程有限公司 | Outdoor direct anti-freezing cold-taking device used in cold seasons |
| CN205481503U (en) * | 2016-04-05 | 2016-08-17 | 杨长义 | Use temperature regulation apparatus of circulation refrigerating fluid as medium |
| CN107228428A (en) * | 2017-07-17 | 2017-10-03 | 西安建筑科技大学 | A kind of full air-conditioning system of family formula fresh air purifying |
| CN210772602U (en) * | 2019-10-16 | 2020-06-16 | 上海热翼智能科技有限公司 | Anti-frosting heat pump air conditioning system |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210908 Address after: 201306 2nd floor, no.979, Yunhan Road, Pudong New Area, Shanghai Applicant after: Shanghai thermal wing Intelligent Control System Co.,Ltd. Address before: 200240 room 057, 13 / F, building 2, 588 Zixing Road, Minhang District, Shanghai Applicant before: Shanghai hot wing Intelligent Technology Co.,Ltd. |
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| TA01 | Transfer of patent application right |