CN101788208A - Air source heat pump air-conditioning water chiller/heater unit - Google Patents
Air source heat pump air-conditioning water chiller/heater unit Download PDFInfo
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- CN101788208A CN101788208A CN200910186846A CN200910186846A CN101788208A CN 101788208 A CN101788208 A CN 101788208A CN 200910186846 A CN200910186846 A CN 200910186846A CN 200910186846 A CN200910186846 A CN 200910186846A CN 101788208 A CN101788208 A CN 101788208A
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Abstract
The invention relates to an air source heat pump air-conditioning water chiller/heater unit. The air source heat pump air-conditioning water chiller/heater unit has the following characteristics that: the exhaust outlet of a compressor is connected with the port a of a first four-way valve, the port b of the first four-way valve is connected with an outdoor air refrigerant heat exchanger, the port c of the first four-way valve is connected with a gas-liquid separator, the port d of the first four-way valve is connected with the port e of a second four-way valve, the port g of the second four-way valve is connected with the gas-liquid separator via a capillary tube, the gas-liquid separator is connected with the suction port of the compressor, a water refrigerant heat exchanger is mounted on a tube between the outdoor air refrigerant heat exchanger and the port f of the second four-way valve, a first throttling part and a first bypass part are connected in parallel with a tube between the outdoor air refrigerant heat exchanger and the water refrigerant heat exchanger, indoor unit heat exchangers are first respectively connected in series with indoor unit throttling parts and then connected in parallel at multiple stages, the ends of the throttling parts are connected with one end of the parallel assembly of a second throttling part and a second bypass part, the ends of the indoor unit heat exchangers are connected with the port h of the second four-way valve, and the other end of the parallel assembly of the second throttling part and the second bypass part is connected with a tube between the port f of the second four-way valve and the water refrigerant heat exchanger. The invention increases the energy utilization rate, and meets the requirement of users on diversity, and moreover, the system structure is simple and reliable.
Description
Technical field
The present invention is a kind of air source heat pump air-conditioning water chiller/heater unit, belongs to the improvement technology that air source heat pump air-conditioning water chiller/heater is used.
Background technology
At present, there is more defective in the air conditioner water heating machine in air source, for example can't when heating, produce by air-conditioning hot water or cold water, cold water can't be provided separately, and the reduction refrigerating capacity along with cold water temperature can decay when producing cold water, and along with the effect of the rising refrigeration of water temperature variation gradually, and refrigerant such as stockpiles at problem when realizing the air conditioner refrigerating recuperation of heat, simultaneity factor complex structure, reliability are not high.
Summary of the invention
The objective of the invention is to consider the problems referred to above and a kind of water or cold water of can heating when heating is provided, under the situation of refrigeration, carry out recuperation of heat and produce hot water, improve energy utilization rate, refrigeration is unattenuated when guaranteeing recuperation of heat, refrigerating capacity does not decay with the water temperature reduction during chilled water, and can eliminate the air source heat pump air-conditioning water chiller/heater unit that refrigerant stockpiles phenomenon.
Technical scheme of the present invention is: a kind of air source heat pump air-conditioning water chiller/heater unit, comprise compressor, first cross valve, gas-liquid separator, the outdoor air refrigerant heat exchanger, the first throttle parts, the first bypass parts, the water refrigerant heat exchanger, second throttle part, the second bypass parts, one or more indoor set heat exchangers, second cross valve and capillary, one or more indoor set throttle parts, the exhaust outlet that it is characterized in that described compressor is connected with a mouth of first cross valve, the b mouth of first cross valve is connected with the outdoor air refrigerant heat exchanger, the c mouth of first cross valve is connected with gas-liquid separator, the d mouth of first cross valve is connected with the e mouth of second cross valve, the g mouth of second cross valve is connected with gas-liquid separator by capillary, gas-liquid separator is connected with the compressor air suction mouth, the water refrigerant heat exchanger is installed on the pipeline between the f mouth of the outdoor air refrigerant heat exchanger and second cross valve, the first throttle parts and the first bypass parts are attempted by on the pipeline between outdoor air refrigerant heat exchanger and the water refrigerant heat exchanger, the first indoor set throttle part plural parallel stage again of connecting separately of each indoor set heat exchanger, its throttle part end links to each other with parallel component one end of one second throttle part and the second bypass parts, indoor set heat exchanger end is connected with the h mouth of second cross valve, and the other end of second throttle part and the second bypass parts parallel component is connected on the f mouth and the pipeline between the water refrigerant heat exchanger of second cross valve.
The above-mentioned first throttle parts and second throttle part are electric expansion valve, capillary or throttling valve core.
The above-mentioned first bypass parts and the second bypass parts are check valve, magnetic valve or electric expansion valve.
Above-mentioned water refrigerant heat exchanger is coaxial heat exchanger, plate type heat exchanger or spiral-plate heat exchanger.
Above-mentioned compressor, first cross valve, gas-liquid separator, outdoor air refrigerant heat exchanger, first throttle parts, the first bypass parts, water refrigerant heat exchanger, second throttle part, the second bypass parts, one or more indoor set heat exchangers, second cross valve, capillary and one or more indoor set throttle parts can arranged apartly be made split type unit in two or more casings, or are integrated in the cavity and make the monoblock type unit.
Above-mentioned water refrigerant heat exchanger is provided with the first water route interface and the second water route interface.
Above-mentioned outdoor air refrigerant heat exchanger is equiped with radiator fan, and every indoor set heat exchanger all is equiped with second radiator fan.
The present invention is owing to pass through compressor, two cross valves, gas-liquid separator, the heat exchange of outdoor air cold-producing medium, the water refrigerant heat exchanger, the indoor set heat exchanger, two throttle parts, the reasonable setting of two bypass parts and indoor set throttle part, can realize the good operation and the switching of 7 kinds of operational modes, can in the indoor apparatus of air conditioner refrigeration, carry out recuperation of heat and produce hot water, when heating, produces indoor apparatus of air conditioner hot water or cold water, also can separate refrigeration, heat, chilled water or heat water, refrigeration is unattenuated when the hot water temperature raises in recuperation of heat, under the condition of heating during chilled water when cold water temperature reduces heating effect unattenuated, therefore, the present invention has not only improved energy utilization rate, satisfied users on diversity, and system architecture is simple and reliable.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is further described.
Embodiment:
The structural representation of air source heat pump air-conditioning water chiller/heater unit of the present invention as shown in Figure 1, comprise compressor 1, first cross valve 2, gas-liquid separator 3, outdoor air refrigerant heat exchanger 4, first throttle parts 6, the first bypass parts 7, water refrigerant heat exchanger 8, second throttle part 9, the second bypass parts 10, one or more indoor set heat exchangers 11, second cross valve 13, capillary 14 and one or more indoor set throttle parts 15, the exhaust outlet of wherein said compressor 1 is connected with a mouth of first cross valve 2, the b mouth of first cross valve 2 is connected with outdoor air refrigerant heat exchanger 4, the c mouth of first cross valve 2 is connected with gas-liquid separator 3, the d mouth of first cross valve 2 is connected with the e mouth of second cross valve 13, the g mouth of second cross valve 13 is connected with gas-liquid separator 3 by capillary 14, gas-liquid separator 3 is connected with compressor 1 air entry, water refrigerant heat exchanger 8 is installed on the pipeline between the f mouth of the outdoor air refrigerant heat exchanger 4 and second cross valve 13, the first throttle parts 6 and the first bypass parts 7 are attempted by on the pipeline between outdoor air refrigerant heat exchanger 4 and the water refrigerant heat exchanger 8, each indoor set heat exchanger 11 first indoor set throttle part 15 plural parallel stage again of connecting separately, its throttle part end links to each other with parallel component one end of one second throttle part 9 and the second bypass parts 10, indoor set heat exchanger end is connected with the h mouth of second cross valve 13, and the other end of second throttle part 9 and the second bypass parts, 10 parallel components is connected on the f mouth and the pipeline between the water refrigerant heat exchanger 8 of second cross valve 13.
In the present embodiment, the above-mentioned first throttle parts 6 and second throttle part 9 are electric expansion valve, capillary or throttling valve core.The above-mentioned first bypass parts 7 and the second bypass parts 10 are check valve, magnetic valve or electric expansion valve.Above-mentioned water refrigerant heat exchanger 8 is coaxial heat exchanger, plate type heat exchanger or spiral-plate heat exchanger.
In the present embodiment, according to needs are installed, above-mentioned compressor 1, first cross valve 2, gas-liquid separator 3, outdoor air refrigerant heat exchanger 4, first throttle parts 6, the first bypass parts 7, water refrigerant heat exchanger 8, second throttle part 9, the second bypass parts 10, one or more indoor set heat exchangers 11, second cross valve 13, capillary 14 and one or more indoor set throttle parts 15 can arranged apartly be made split type unit in two or more casings, or are integrated in the cavity and make the monoblock type unit.
Be connected with user side for convenient, above-mentioned water refrigerant heat exchanger 8 is provided with the first water route interface 15 and the second water route interface 16.
For better making the heat exchanger heat radiation, above-mentioned outdoor air refrigerant heat exchanger 4 is equiped with radiator fan 5, and every indoor set heat exchanger 11 all is equiped with second radiator fan 12.
Unit of the present invention has 7 kinds of operational modes when normally moving, be described below respectively:
1, independent air conditioner refrigerating pattern: water refrigerant heat exchanger 8 not water flowings, 2 power down of first cross valve, 13 power down of second cross valve, the first bypass parts 7 are opened, first throttle parts 6 full open, the second bypass parts 10 are closed, second throttle part, 9 opening degrees are regulated according to system running state, indoor set throttle part 15 is regulated according to indoor set unlatching situation, during work, refrigerant is discharged from compressor 1 exhaust outlet, a by first cross valve 2, after b mouth inlet chamber outer air refrigerant heat exchanger 4 is emitted heat, through the first throttle parts 6 and the first bypass parts 7, pass through water refrigerant heat exchanger 8 again, by 9 throttlings of second throttle part, again by 15 shunting and the throttlings of indoor set throttle part, machine heat exchanger 11 evaporates in the inlet chamber, passes through the h of second cross valve 13 more successively, the e mouth, the d of first cross valve 2, c mouth and gas-liquid separator 3 are got back to compressor 1 air entry; This kind pattern realized the refrigerating function of indoor apparatus of air conditioner heat exchanger 11, and water refrigerant heat exchanger 8 can be not frozen when not influencing connection water refrigerant heat exchanger 8 water system water temperatures.
2, separate refrigeration aqueous mode: water refrigerant heat exchanger 8 water flowings, first cross valve 2 powers on, second cross valve 13 powers on, the first bypass parts 7 are closed, second throttle part 9 is closed, the second bypass parts 10 are closed, first throttle parts 6 opening degrees are regulated according to system running state, indoor set throttle part 15 is closed, during work, refrigerant is discharged from compressor 1 exhaust outlet, a by first cross valve 2, the b mouth enters air cooling agent heat exchanger 4 and emits heat, through 6 throttlings of first throttle parts, then enter 8 evaporations of water refrigerant heat exchanger, pass through the f of second cross valve 13 more successively, the e mouth, the d of cross valve 2, behind c mouth and the gas-liquid separator 3, get back to compressor 1 air entry, this kind pattern not by under the situation of indoor apparatus of air conditioner heat exchanger 11, be implemented in chilled water function in the water refrigerant heat exchanger 8, and refrigerant can not stockpile in indoor apparatus of air conditioner heat exchanger 11 at refrigerant.
3, independent air-conditioning heating mode: water refrigerant heat exchanger 8 not water flowings, first cross valve 2 powers on, 13 power down of second cross valve, the first bypass parts 7 are closed, second throttle part, 9 full open, the second bypass parts 10 are opened, the opening degree of first throttle parts 6 is regulated according to system running state, indoor set throttle part 15 is regulated according to indoor set unlatching situation, during work, refrigerant is discharged from compressor 1 exhaust outlet, a by first cross valve 2, the e of the d mouth and second cross valve 13, the interior machine heat exchanger 11 of inlet chamber is emitted heat behind the h mouth, by 15 throttlings of indoor set throttle part, through second throttle part 9 and the second bypass parts 10, then pass through water refrigerant heat exchanger 8 more again, again by after 6 throttlings of first throttle parts, after inlet chamber outer air refrigerant heat exchanger 4 evaporation, more successively through the b of first cross valve 2, behind c mouth and the gas-liquid separator 3, get back to compressor 1 air entry; This kind pattern realize the heat-production functions of indoor apparatus of air conditioner heat exchanger 11, and water refrigerant heat exchanger 8 can not freezed when not influencing connection water refrigerant heat exchanger 8 water system water temperatures.
4, air-conditioning heats aqueous mode: 8 water flowings of water refrigerant heat exchanger, first cross valve 2 powers on, 13 power down of second cross valve, the first bypass parts 7 are closed, second throttle part, 9 full open, the second bypass parts 10 are opened, the opening degree of first throttle parts 6 is regulated according to system running state, indoor set throttle part 15 is regulated according to indoor set unlatching situation, during work, refrigerant is discharged from compressor 1 exhaust outlet, a through first cross valve 2, the e of the d mouth and second cross valve 13, the interior machine heat exchanger 11 of inlet chamber is emitted heat behind the h mouth, by 15 throttlings of indoor set throttle part, again through second throttle part 9 and the second bypass parts 10, enter water refrigerant heat exchanger 8 secondary heat releases (water that enters water refrigerant heat exchanger 8 is heated) after, again by 6 throttlings of first throttle parts, after inlet chamber outer air refrigerant heat exchanger 4 evaporation, more successively through the b of first cross valve 2, c mouth and gas-liquid separator 3 are got back to compressor 1 air entry; In water refrigerant heat exchanger 8, produce hot water when this kind pattern can be implemented in indoor apparatus of air conditioner heat exchanger 11 and heats, solve winter heating and heat the demand contradictory of water.
5, heat aqueous mode separately: 8 water flowings of water refrigerant heat exchanger, first cross valve 2 powers on, second cross valve 13 powers on, the first bypass parts 7 are closed, second throttle part 9 is closed, the second bypass parts 10 are closed, the opening degree of first throttle parts 6 is regulated according to system running state, indoor set throttle part 15 is closed, during work, refrigerant is discharged from compressor 1 exhaust outlet, a by first cross valve 2, the e of the d mouth and second cross valve 13, the laggard entry refrigerant heat exchanger 8 of f mouth is emitted heat (water that enters water refrigerant heat exchanger 8 is heated), passes through 6 throttlings of first throttle parts again, 4 evaporations of inlet chamber outer air refrigerant heat exchanger, again successively through the b of first cross valve 2, c mouth and gas-liquid separator 3 are got back to compressor 1 air entry; This kind pattern, is implemented in the water refrigerant heat exchanger 8 and heats water function not by under the situation of indoor apparatus of air conditioner heat exchanger 11 at refrigerant, and refrigerant can not stockpile in indoor apparatus of air conditioner heat exchanger 11.
6, air conditioner refrigerating heats aqueous mode: 8 water flowings of water refrigerant heat exchanger, 2 power down of first cross valve, 13 power down of second cross valve, the first bypass parts 7 are opened, first throttle parts 6 full open, the second bypass parts 10 are closed, the opening degree of second throttle part 9 is regulated according to system running state, indoor set throttle part 15 is regulated according to indoor set unlatching situation, during work, refrigerant is discharged from compressor 1 exhaust outlet, pass through a of first cross valve 2 successively, the b mouth, outdoor air refrigerant heat exchanger 4, behind the first bypass parts 7 and the first throttle parts 6, enter water refrigerant heat exchanger 8 and emit heat (water that enters water refrigerant heat exchanger 8 is heated), again through 9 throttlings of second throttle part, again by shunting of indoor set throttle part and throttling, machine heat exchanger 11 evaporations in the inlet chamber are more successively through the h of second cross valve 13, the e mouth, the d of first cross valve 2, behind c mouth and the gas-liquid separator 3, get back to compressor 1 air entry.This kind pattern can heat water in water refrigerant heat exchanger 8 in indoor apparatus of air conditioner heat exchanger 11 refrigeration, promptly realized recuperation of heat, simultaneously because condensation side has air refrigerant heat exchanger 4 and water refrigerant heat exchanger 8, when water temperature in the water refrigerant heat exchanger 8 raises, can utilize 4 heat radiations of air cooling agent heat exchanger, guarantee that condensation is complete, the refrigeration of indoor set heat exchanger 11 is unattenuated, simultaneously the also energy-conserving and environment-protective of this kind pattern.
7, air-conditioning heats the chilled water pattern: 8 water flowings of water refrigerant heat exchanger, first cross valve 2 powers on, 13 power down of second cross valve, the first bypass parts 7 are opened, first throttle parts 6 full open, the second bypass parts 10 are closed, the opening degree of second throttle part 9 is regulated according to system running state, indoor set throttle part 15 is regulated according to indoor set unlatching situation, during work, refrigerant is discharged from compressor 1 exhaust outlet, a by first cross valve 2, the e of the d mouth and second cross valve 13, the interior machine heat exchanger 11 of inlet chamber is emitted heat behind the h mouth, again by shunting of indoor set throttle part and throttling, again through after 9 throttlings of second throttle part, enter 8 evaporations (water that enters water refrigerant heat exchanger 8 is cooled) of water refrigerant heat exchanger after, again by after first throttle parts 6 and the first bypass parts 7 and the outdoor air refrigerant heat exchanger 4, again successively through the b of first cross valve 2, c mouth and gas-liquid separator 3 are got back to compressor 1 air entry; When can being implemented in indoor apparatus of air conditioner heat exchanger 11 and heating, this kind pattern in water refrigerant heat exchanger 8, produces cold water, solve winter heating and the demand contradictory that heats water, because the participation of air refrigerant heat exchanger 4 is arranged, refrigerating capacity is unattenuated when water refrigerant heat exchanger 8 inner cold water temperature reduce simultaneously.
Claims (7)
1. air source heat pump air-conditioning water chiller/heater unit, comprise compressor (1), first cross valve (2), gas-liquid separator (3), outdoor air refrigerant heat exchanger (4), first throttle parts (6), the first bypass parts (7), water refrigerant heat exchanger (8), second throttle part (9), the second bypass parts (10), one or more indoor set heat exchangers (11), second cross valve (13) and capillary (14) and one or more indoor set throttle parts (15), the exhaust outlet that it is characterized in that described compressor (1) is connected with a mouth of first cross valve (2), the b mouth of first cross valve (2) is connected with outdoor air refrigerant heat exchanger (4), the c mouth of first cross valve (2) is connected with gas-liquid separator (3), the d mouth of first cross valve (2) is connected with the e mouth of second cross valve (13), the g mouth of second cross valve (13) is connected with gas-liquid separator (3) by capillary (14), gas-liquid separator (3) is connected with compressor (1) air entry, water refrigerant heat exchanger (8) is installed on the pipeline between the f mouth of outdoor air refrigerant heat exchanger (4) and second cross valve (13), the first throttle parts (6) and the first bypass parts (7) are attempted by on the pipeline between outdoor air refrigerant heat exchanger (4) and the water refrigerant heat exchanger (8), first indoor set throttle part (15) plural parallel stage again of connecting separately of each indoor set heat exchanger (11), its throttle part end links to each other with parallel component one end of one second throttle part (9) and the second bypass parts (10), indoor set heat exchanger end is connected with the h mouth of second cross valve (13), and the other end of second throttle part (9) and second bypass parts (10) parallel component is connected on the f mouth and the pipeline between the water refrigerant heat exchanger (8) of second cross valve (13).
2. air source heat pump air-conditioning water chiller/heater unit according to claim 1 is characterized in that above-mentioned first throttle parts (6) and second throttle part (9) are electric expansion valve, capillary or throttling valve core.
3. air source heat pump air-conditioning water chiller/heater unit according to claim 1 is characterized in that the above-mentioned first bypass parts (7) and the second bypass parts (10) are check valve, magnetic valve or electric expansion valve.
4. air source heat pump air-conditioning water chiller/heater unit according to claim 1 is characterized in that above-mentioned water refrigerant heat exchanger (8) is coaxial heat exchanger, plate type heat exchanger or spiral-plate heat exchanger.
5. according to each described air source heat pump air-conditioning water chiller/heater unit of claim 1 to 4, it is characterized in that above-mentioned compressor (1), first cross valve (2), gas-liquid separator (3), outdoor air refrigerant heat exchanger (4), first throttle parts (6), the first bypass parts (7), water refrigerant heat exchanger (8), second throttle part (9), the second bypass parts (10), one or an above indoor set heat exchanger (11), second cross valve (13), capillary (14) and one or more indoor set throttle parts (15) can arranged apartly be made split type unit in two or more casings, or are integrated in the cavity and make the monoblock type unit.
6. air source heat pump air-conditioning water chiller/heater unit according to claim 1 is characterized in that above-mentioned water refrigerant heat exchanger (8) is provided with the first water route interface (15) and the second water route interface (16).
7. air source heat pump air-conditioning water chiller/heater unit according to claim 1 is characterized in that above-mentioned outdoor air refrigerant heat exchanger (4) is equiped with radiator fan (5), and every indoor set heat exchanger (11) all is equiped with second radiator fan (12).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101868468A CN101788208B (en) | 2009-12-25 | 2009-12-25 | Air source heat pump air-conditioning water chiller/heater unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101868468A CN101788208B (en) | 2009-12-25 | 2009-12-25 | Air source heat pump air-conditioning water chiller/heater unit |
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| CN101788208A true CN101788208A (en) | 2010-07-28 |
| CN101788208B CN101788208B (en) | 2011-06-22 |
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| CN2009101868468A Active CN101788208B (en) | 2009-12-25 | 2009-12-25 | Air source heat pump air-conditioning water chiller/heater unit |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519171A (en) * | 2011-12-31 | 2012-06-27 | 广东欧科空调制冷有限公司 | Multi-functional multi-connected air conditioning unit |
| CN102788447A (en) * | 2011-05-20 | 2012-11-21 | 高国栋 | Heat pump air conditioning system and water dispenser |
| CN104329836A (en) * | 2013-07-22 | 2015-02-04 | 广东美的暖通设备有限公司 | Refrigerant automatic recycling air conditioner system and control method thereof |
| CN104344600A (en) * | 2013-08-10 | 2015-02-11 | 李显斌 | Integrated multi-functional comfort system |
| CN105180527A (en) * | 2015-09-07 | 2015-12-23 | 珠海格力电器股份有限公司 | Air-conditioning and water-heating system and control method |
| CN107560216A (en) * | 2017-08-29 | 2018-01-09 | 广东美的暖通设备有限公司 | Waterpower heat-exchanger rig and air conditioner cold and hot water unit for air conditioner cold and hot water unit |
| US20220221199A1 (en) * | 2021-01-14 | 2022-07-14 | Carrier Corporation | Heat pump system |
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2009
- 2009-12-25 CN CN2009101868468A patent/CN101788208B/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788447A (en) * | 2011-05-20 | 2012-11-21 | 高国栋 | Heat pump air conditioning system and water dispenser |
| CN102788447B (en) * | 2011-05-20 | 2014-10-01 | 高国栋 | Heat pump air conditioning system |
| CN102519171A (en) * | 2011-12-31 | 2012-06-27 | 广东欧科空调制冷有限公司 | Multi-functional multi-connected air conditioning unit |
| CN104329836A (en) * | 2013-07-22 | 2015-02-04 | 广东美的暖通设备有限公司 | Refrigerant automatic recycling air conditioner system and control method thereof |
| CN104344600A (en) * | 2013-08-10 | 2015-02-11 | 李显斌 | Integrated multi-functional comfort system |
| CN105180527A (en) * | 2015-09-07 | 2015-12-23 | 珠海格力电器股份有限公司 | Air-conditioning and water-heating system and control method |
| CN107560216A (en) * | 2017-08-29 | 2018-01-09 | 广东美的暖通设备有限公司 | Waterpower heat-exchanger rig and air conditioner cold and hot water unit for air conditioner cold and hot water unit |
| CN107560216B (en) * | 2017-08-29 | 2020-02-28 | 广东美的暖通设备有限公司 | Hydraulic heat exchange device for air conditioner cold and hot water unit and air conditioner cold and hot water unit |
| US20220221199A1 (en) * | 2021-01-14 | 2022-07-14 | Carrier Corporation | Heat pump system |
| US11913680B2 (en) * | 2021-01-14 | 2024-02-27 | Carrier Corporation | Heat pump system |
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| CN101788208B (en) | 2011-06-22 |
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Assignee: HEFEI MIDEA HEATING & VENTILATING EQUIPMENT CO., LTD. Assignor: Meidi Electric Appliances Co., Ltd., Guangdong Contract record no.: 2011440001082 Denomination of invention: Air source heat pump air-conditioning water chiller/heater unit Granted publication date: 20110622 License type: Exclusive License Open date: 20100728 Record date: 20111219 |
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Owner name: MIDEA GROUP CO., LTD. Free format text: FORMER OWNER: MEIDI ELECTRIC APPLIANCES CO., LTD., GUANGDONG Effective date: 20131225 |
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Effective date of registration: 20131225 Address after: 528311 Guangdong, Foshan, Beijiao, the United States, the United States and the United States on the avenue of the United States, the headquarters of the United States building B floor, District, 26-28 Patentee after: Midea Group Co., Ltd. Address before: 528311 Foshan, Shunde District, Beijiao Town, Penglai Road, the United States Industrial City Patentee before: Meidi Electric Appliances Co., Ltd., Guangdong |