CN206514566U - Air-to-water heat pump - Google Patents
Air-to-water heat pump Download PDFInfo
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- CN206514566U CN206514566U CN201621458924.7U CN201621458924U CN206514566U CN 206514566 U CN206514566 U CN 206514566U CN 201621458924 U CN201621458924 U CN 201621458924U CN 206514566 U CN206514566 U CN 206514566U
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- valve
- way reversing
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- heat exchanger
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The utility model discloses a kind of air-to-water heat pump, it is included in the four-way reversing valve for circulating connection in circulation loop successively, water-side heat, the first electric expansion valve, air side heat exchanger, in addition to：On supplementary heat exchanger, the pipeline for being connected to four-way reversing valve and air side heat exchanger；Second electric expansion valve and magnetic valve, parallel pipeline is formed between the second electric expansion valve and magnetic valve；Auxiliary piping；Control valve, is connected on the pipeline between auxiliary piping and four-way reversing valve and water-side heat, and control valve is used to control：Four-way reversing valve is connected with water-side heat or four-way reversing valve is connected with auxiliary piping.The mechanical shock when being defrosted of the utility model air-to-water heat pump is small and avoids compressor air suction band liquid.
Description
Technical field
The utility model is related to air-conditioning system technical field, in particular to a kind of air-to-water heat pump.
Background technology
In the prior art, air-to-water heat pump as central air conditioner system Cooling and Heat Source, when heating in winter, in steaming
The air side heat exchanger (finned heat exchanger) for sending out side is easy in fin surface frosting with air heat-exchange, influences heat exchange efficiency of fins,
So as to influence unit capacity and reliability operation.When frost layer is accumulated to a certain extent, heating capacity is significantly decayed, it is necessary to removed
Frost.It is at present reverse cycle defrosting using most common Defrost mode, is absorbed heat during reverse cycle defrosting from hot water side, water temperature reduction is bright
It is aobvious, the comfortableness of user is influenceed, while when switching is heated with defrosting mode, compressor is inhaled, pressure at expulsion changes acutely i.e. system
Acutely, the mechanical shock of generation is than larger for pressure oscillation.Also a kind of Defrost mode is hot gas bypass defrosting, hot gas bypass defrosting
System parameter variations are very gentle during the shortcoming of part reverse cycle defrosting, defrosting can be overcome, and heat and defrosting mode switching
When pressure change it is steady, the mechanical shock to compressor is smaller, and comfortableness is preferable with respect to reverse cycle defrosting；But hot-gas bypass is removed
When white, air side heat exchanger outlet produces substantial amounts of liquid refrigerants working medium, causes hydrops in gas-liquid separator more, may cause pressure
Contracting machine absorbing gas belt liquid.
In summary, the cold Hot water units of prior art wind have that mechanical shock is big, compressor is inhaled when being defrosted
The problem of gas carrying liquid.
Utility model content
A kind of air-to-water heat pump is provided in the utility model embodiment, to solve the cold hot water machine of prior art wind
The problem of group has big mechanical shock, compressor air suction band liquid when being defrosted.
To achieve the above object, the utility model provide a kind of air-to-water heat pump, be included in circulation loop according to
Four-way reversing valve, water-side heat, the first electric expansion valve, the air side heat exchanger of secondary circulation connection, in addition to：Auxiliary heat-exchanging
On device, the pipeline for being connected to four-way reversing valve and air side heat exchanger；Second electric expansion valve and magnetic valve, the second electric expansion valve
Parallel pipeline is formed between magnetic valve, the parallel pipeline that the second electric expansion valve and magnetic valve are formed is arranged on supplementary heat exchanger
On pipeline between air side heat exchanger；Auxiliary piping, the first end connection of auxiliary piping exchanges heat in four-way reversing valve and water side
On pipeline between device, the second end of auxiliary piping is connected between the first electric expansion valve and air side heat exchanger；Control valve,
It is connected on the pipeline between auxiliary piping and four-way reversing valve and water-side heat, control valve is used to control：Four-way is changed
Connected to valve with water-side heat or four-way reversing valve is connected with auxiliary piping.
Further, supplementary heat exchanger is finned heat exchanger.
Further, compressor and gas-liquid separator in addition in circulation loop, air entry and the gas-liquid point of compressor
From the outlet of device, the first interface of four-way reversing valve is connected with water-side heat, the second interface and pressure of four-way reversing valve
Contracting machine exhaust outlet is connected, and the 3rd interface of four-way reversing valve is connected with supplementary heat exchanger, the 4th interface and gas of four-way reversing valve
The entrance connection of liquid/gas separator.
Further, when air-to-water heat pump is in the first defrost state, the first interface of four-way reversing valve and second
Orifice, the 3rd interface of four-way reversing valve and the 4th orifice, control valve control the first interface of four-way reversing valve
Connected with auxiliary piping, the first electric expansion valve is closed, the second electric expansion valve is opened, closed electromagnetic valve.
Further, when air-to-water heat pump is in the second defrost state, the second interface of four-way reversing valve and the 3rd
Orifice, the first interface of four-way reversing valve and the 4th orifice, control valve control the first interface of four-way reversing valve
Connected with auxiliary piping, the first electric expansion valve is closed, the second electric expansion valve is opened, closed electromagnetic valve.
Further, control valve is three-way diverter valve, and the first end of three-way diverter valve passes through pipeline and water-side heat
Connection, the second end of three-way diverter valve is connected by pipeline with four-way reversing valve, the 3rd end connection auxiliary tube of three-way diverter valve
Road.
Further, control valve includes two pilot solenoid valves, and one of them is arranged on auxiliary piping first end and water
On pipeline between the heat exchanger of side, another is arranged on auxiliary piping.
By air side heat exchanger and supplementary heat exchanger series design, the second electronics of parallel connection is in series between two heat exchangers
Expansion valve and magnetic valve, two heat exchangers alternately defrost, one heat exchanger (air side heat exchanger or auxiliary heat-exchanging during defrosting
Device) as condenser (i.e. hot gas bypass defrosting), another supplementary heat exchanger (air side heat exchanger or supplementary heat exchanger) is made
For evaporator, the entrance for so entering gas-liquid separator is gaseous coolant so that hydrops is few in gas-liquid separator, effectively
Ground solves compressor air suction solution dehumidification while migration during hot gas bypass defrosting.Relatively simple reverse cycle defrosting, the pressure oscillation width of system
Degree is smaller, so that mechanical shock is smaller.
Brief description of the drawings
Fig. 1 is the structural representation of the air-to-water heat pump of the utility model embodiment.
Description of reference numerals：
1st, compressor；101st, the air entry of compressor；102nd, the exhaust outlet of compressor；2nd, four-way reversing valve；3rd, threeway is changed
To valve；301st, first end；302nd, the second end；303rd, the 3rd end；4th, 6,7,9,10,12,15,17 be filter；5th, water side exchanges heat
Device；501st, water-side heat gas tube orifice；502nd, water-side heat liquid pipe mouthful；8th, the first electric expansion valve；11st, air side heat exchanger；
1101st, air side heat exchanger liquid pipe mouthful；1102nd, air side heat exchanger gas tube orifice；13rd, the second electric expansion valve；14th, magnetic valve；16th, it is auxiliary
Help heat exchanger；1601st, supplementary heat exchanger liquid pipe mouthful；1602nd, supplementary heat exchanger gas tube orifice；18th, gas-liquid separator；1801st, gas-liquid
The entrance of separator；1802nd, the outlet of gas-liquid separator；19th, auxiliary piping.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings, but not as to this practicality
New restriction.
It is shown in Figure 1, according to embodiment of the present utility model there is provided a kind of air-to-water heat pump, it is included in and follows
Four-way reversing valve 2, water-side heat 5, the first electric expansion valve 8, the air side heat exchanger 11, wind of connection are circulated in loop back path successively
Cold Hot water units also include supplementary heat exchanger 16, the second electric expansion valve 13, magnetic valve 14, auxiliary piping 19 and control valve
Door, supplementary heat exchanger 16 is connected on the pipeline of four-way reversing valve 2 and air side heat exchanger 11, the second electric expansion valve 13 and electromagnetism
Parallel pipeline is formed between valve 14, the parallel pipeline that the second electric expansion valve 13 and magnetic valve 14 are formed is arranged on supplementary heat exchanger
On pipeline between 16 and air side heat exchanger 11.The first end of auxiliary piping 19 is connected in four-way reversing valve 2 and water-side heat 5
Between pipeline on, the second end of auxiliary piping 19 is connected between the first electric expansion valve 8 and air side heat exchanger 11.It is connected to
On pipeline between auxiliary piping 19 and four-way reversing valve 2 and water-side heat 5, control valve is used to control：Four-way commutates
Valve 2 is connected with water-side heat 5 or four-way reversing valve 2 is connected with auxiliary piping 19, in actual control operation, four-way commutation
Valve 2 is only connected with water-side heat 5 or only connected with auxiliary piping 19.
It should be strongly noted that air side heat exchanger 11 with air for being exchanged heat, if wind cooling cold and hot water machine
Group is Split type structure, then air side heat exchanger 11 is usually and is disposed in the outdoor, and water-side heat 5 can be then disposed in the interior.If wind
Water chiller-heater unit is integrated machine, and water-side heat 5 is used for being processed hot water and cold water, and air side heat exchanger 11 or use
Exchanged heat with air, air side heat exchanger and water-side heat herein are central air-conditioning, wind cooling cold and hot water machine
Common technical terms in group.
Air-to-water heat pump also includes the compressor 1 and gas-liquid separator 18 in circulation loop, the air entry of compressor 1
With the outlet of gas-liquid separator 18, the first interface of four-way reversing valve 2 is connected with water-side heat 5, four-way reversing valve 2
Second interface is connected with the exhaust outlet of compressor 1, and the 3rd interface of four-way reversing valve 2 is connected with supplementary heat exchanger 16, four-way commutation
4th interface of valve 2 is connected with the entrance of gas-liquid separator 18.In the present embodiment, air side heat exchanger 11 and supplementary heat exchanger 16 are equal
For finned heat exchanger.
When air-to-water heat pump is in the first defrost state, the first interface of four-way reversing valve 2 is connected with second interface,
3rd interface of four-way reversing valve 2 and the 4th orifice, control valve control the first interface and auxiliary tube of four-way reversing valve 2
Road 19 is connected, and the first electric expansion valve 8 is closed, and the second electric expansion valve 13 is opened, and magnetic valve 14 is closed.
When air-to-water heat pump is in the second defrost state, the second interface of four-way reversing valve 2 and the 3rd orifice,
The first interface of four-way reversing valve 2 and the 4th orifice, control valve control the first interface and auxiliary tube of four-way reversing valve 2
Road 19 is connected, and the first electric expansion valve 8 is closed, and the second electric expansion valve 13 is opened, and magnetic valve 14 is closed.
In embodiment, control valve is three-way diverter valve 3, and the first end of three-way diverter valve 3 is changed by pipeline with water side
Hot device 5 is connected, and the second end of three-way diverter valve 3 is connected by pipeline with four-way reversing valve 2, and the 3rd end of three-way diverter valve 3 connects
Logical auxiliary piping 19.With reference to Fig. 1, the two ends acting as in the end of three-way diverter valve 3 three connection of three-way diverter valve 3 simultaneously switches off the
Three ends, are described as follows：When the first end 301 of three-way diverter valve 3 is connected with the second end 302, the 3rd end 303 disconnects；When first
When end 301 is connected with the 3rd end 303, the second end 302 disconnects；When the second end 302 is connected with the 3rd end 303, first end 301 is broken
Open.It should be noted that in other unshowned embodiments, control valve includes two pilot solenoid valves, and one of them sets
Put on the pipeline between the first end of auxiliary piping 19 and water-side heat 5, another is arranged on auxiliary piping 19.More than
The function that two pilot solenoid valves are realized and the function phase of three-way diverter valve 3 are same, as long as control can just be completed by carrying out switch control
The above-mentioned control function of valve processed.
Air-to-water heat pump have freeze, heat, three kinds of basic models of defrost, with reference to Fig. 1, each cycle of modes flow is retouched
State that following (first interface of wherein four-way reversing valve 2 is that C-terminal, second interface are that D ends, the 3rd interface are that E ends, the 4th interface are S
End)：
1st, kind of refrigeration cycle：
During refrigeration：The D ends of four-way reversing valve 2 are connected with E ends, and C-terminal is connected with S ends；The first end 301 and second of triple valve
End 302 is connected；First electric expansion valve 8 is opened；Second electric expansion valve 13 is closed；Magnetic valve 14 is opened；
Refrigeration refrigerant circulation flow：1802→101→1→102→D→E→17→1602→16→1601→15→
14→12→1102→11→1101→10→9→8→7→6→502→5→501→4→301→302→C→S→1801
→18→1802。
2nd, circulation is heated：
When heating：The D ends of four-way reversing valve 2 are connected with C-terminal, and E ends are connected with S ends；The first end 301 and second of triple valve
End 302 is connected；First electric expansion valve 8 is opened；Second electric expansion valve 13 is closed；Magnetic valve 14 is opened；
Heat refrigerant circulation flow：1802→101→1→102→D→C→302→301→4→501→5→502
→6→7→8→9→10→1101→11→1102→12→14→15→1601→16→1602→17→E→S→1801
→18→1802。
3rd, defrost is circulated：
(1) when air-to-water heat pump is in the first defrost state：Air side heat exchanger 11 is first changed when switching to defrost by heating
Frost, now four-way reversing valve do not commutate, the D ends of four-way reversing valve 2 are connected with C-terminal, and E ends are connected with S ends.The second of triple valve 3
End 302 is connected with the 3rd end 303, and the first electric expansion valve 8 is closed, and the second electric expansion valve 13 is opened, and magnetic valve 14 is closed.Heat
Gas is bypassed to hot-gas bypass defrost in air side heat exchanger 11 by the 3rd end 303 of triple valve 3, is condensed into HTHP liquid cold
Matchmaker, then by the reducing pressure by regulating flow of the second electric expansion valve 13, to be changed into low-temp low-pressure gaseous state cold for evaporation endothermic in supplementary heat exchanger 16
Matchmaker.
Refrigerant circulation flow：1802→101→1→102→D→C→302→303→10→1101→11→1102
→12→13→15→1601→16→1602→17→E→S→1801→18→1802。
The defrost of air side heat exchanger 11 is finished, and four-way reversing valve 2 commutates, and the D ends of four-way reversing valve 2 are connected with E ends, C-terminal and S
End connection.Hot gas is bypassed to hot-gas bypass defrost in supplementary heat exchanger 16 by the D ends and E ends of four-way reversing valve 2, is condensed into high temperature
High-pressure liquid refrigerant, then by the reducing pressure by regulating flow of the second electric expansion valve 13, evaporation endothermic is changed into low temperature in air side heat exchanger 11
Low-pressure gaseous refrigerant.
Refrigerant circulation flow：1802→101→1→102→D→E→17→1602→16→1601→15→13→
12→1102→11→1101→10→303→302→C→S→1801→18→1802。
Supplementary heat exchanger defrost is finished, and the commutation of four-way reversing valve 2 connects for the D ends of four-way reversing valve 2 with C-terminal, E ends and S
End connection.The first end 301 of triple valve 3 is connected with the second end 302；First electric expansion valve 8 is opened；Second electric expansion valve 13
Close；Magnetic valve 14 is opened, and is switched to normally heat by defrost.
(2) when air-to-water heat pump is in the second defrost state：Supplementary heat exchanger 16 is first changed when switching to defrost by heating
Frost, now four-way reversing valve 2 commutate, the D ends of four-way reversing valve 2 are connected with E ends, and C-terminal is connected with S ends.Second end of triple valve 3
302 are connected with the 3rd end 303, and the first electric expansion valve 8 is closed, and the second electric expansion valve 13 is opened, and magnetic valve 14 is closed.Hot gas
Hot-gas bypass defrost in supplementary heat exchanger 16 is bypassed to by the 3rd end 303 of triple valve 3, HTHP liquid refrigerant is condensed into,
Then by the reducing pressure by regulating flow of the second electric expansion valve 13, evaporation endothermic is changed into low-temp low-pressure gaseous coolant in air side heat exchanger 11.
Refrigerant circulation flow：1802→101→1→102→D→E→17→1602→16→1601→15→13→
12→1102→11→1101→10→303→302→C→S→1801→18→1802。
Supplementary heat exchanger defrost is finished, and four-way reversing valve 2 commutates, and the D ends of four-way reversing valve 2 are connected with C-terminal, E ends and S ends
Connection.Hot gas is bypassed to hot-gas bypass defrost in air side heat exchanger 11 by the 3rd end 303 of triple valve 3, is condensed into HTHP
Liquid refrigerants, then by the reducing pressure by regulating flow of the second electric expansion valve 13, evaporation endothermic is changed into low-temp low-pressure in supplementary heat exchanger 16
Gaseous coolant.
Refrigerant circulation flow：1802→101→1→102→D→C→302→303→10→1101→11→1102
→12→13→15→1601→16→1602→17→E→S→1801→18→1802。
Air side heat exchanger defrost is finished, and four-way reversing valve 2 does not commutate, and the D ends of four-way reversing valve 2 are connected with C-terminal, E ends and S
End connection.The first end 301 of triple valve is connected with the second end 302；First electric expansion valve 8 is opened；Second electric expansion valve 13
Close；Magnetic valve 14 is opened, and is switched to normally heat by defrost.
The course of work more than, air-to-water heat pump of the present utility model has the beneficial effect that：
1st, by air side heat exchanger 11 and the series design of supplementary heat exchanger 16, the of parallel connection is in series between two heat exchangers
Two electric expansion valves 13 and magnetic valve 14, two heat exchangers alternately defrost, one heat exchanger (air side heat exchanger 11 during defrosting
Or supplementary heat exchanger 16) as condenser (i.e. hot gas bypass defrosting), another supplementary heat exchanger (air side heat exchanger 11 or
Person's supplementary heat exchanger 16) as evaporator, the entrance 1801 for so entering gas-liquid separator is gaseous coolant so that gas
Hydrops is few in liquid/gas separator, compressor air suction solution dehumidification while migration when efficiently solving hot gas bypass defrosting.
Heat is not absorbed from water-side heat 5 when the 2nd, defrosting, fluctuating temperature is smaller, and user experience is preferable；
3rd, simple reverse cycle defrosting relatively, the pressure fluctuations amplitude of system is smaller, so that mechanical shock is smaller.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, work, device, component and/or combinations thereof.
It should be noted that term " first " in the description and claims of this application and above-mentioned accompanying drawing, "
Two " etc. be for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so using
Data can exchange in the appropriate case, so that presently filed embodiment described herein can be with except illustrating herein
Or the order beyond those of description is implemented.
Certainly, above is preferred embodiment of the present utility model.It should be pointed out that for the ordinary skill of the art
For personnel, on the premise of the utility model general principle is not departed from, some improvements and modifications can also be made, these improvement
Protection domain of the present utility model is also considered as with retouching.
Claims (7)
1. a kind of air-to-water heat pump, is included in the four-way reversing valve (2) for circulating connection in circulation loop successively, the heat exchange of water side
Device (5), the first electric expansion valve (8), air side heat exchanger (11), it is characterised in that also include：
On supplementary heat exchanger (16), the pipeline for being connected to the four-way reversing valve (2) and the air side heat exchanger (11)；
Second electric expansion valve (13) and magnetic valve (14), between second electric expansion valve (13) and the magnetic valve (14)
Parallel pipeline is formed, the parallel pipeline that second electric expansion valve (13) and the magnetic valve (14) are formed is arranged on described auxiliary
Help on the pipeline between heat exchanger (16) and the air side heat exchanger (11)；
Auxiliary piping (19), the first end connection of the auxiliary piping (19) is changed in the four-way reversing valve (2) with the water side
On pipeline between hot device (5), the connection of the second end of the auxiliary piping (19) first electric expansion valve (8) with it is described
Between air side heat exchanger (11)；
Control valve, be connected to the auxiliary piping (19) and the four-way reversing valve (2) and the water-side heat (5) it
Between pipeline on, the control valve be used for control：The four-way reversing valve (2) connected with the water-side heat (5) or
The four-way reversing valve (2) connects with the auxiliary piping (19).
2. air-to-water heat pump according to claim 1, it is characterised in that the supplementary heat exchanger (16) is finned
Heat exchanger.
3. air-to-water heat pump according to claim 1, it is characterised in that also including the compressor in circulation loop
(1) and gas-liquid separator (18), the air entry of the compressor (1) and the outlet of the gas-liquid separator (18), described
The first interface of four-way reversing valve (2) is connected with the water-side heat (5), the second interface of the four-way reversing valve (2) with
Compressor (1) the exhaust outlet connection, the 3rd interface of the four-way reversing valve (2) is connected with the supplementary heat exchanger (16),
4th interface of the four-way reversing valve (2) is connected with the entrance of the gas-liquid separator (18).
4. air-to-water heat pump according to claim 3, it is characterised in that the air-to-water heat pump is in first
During defrost state, the first interface of the four-way reversing valve (2) is connected with second interface, and the 3rd of the four-way reversing valve (2) the
Interface and the 4th orifice, the control valve control the first interface and the auxiliary piping of the four-way reversing valve (2)
(19) connect, the first electric expansion valve (8) is closed, the second electric expansion valve (13) is opened, magnetic valve (14) is closed.
5. air-to-water heat pump according to claim 3, it is characterised in that the air-to-water heat pump is in second
During defrost state, the second interface and the 3rd orifice of the four-way reversing valve (2), the first of the four-way reversing valve (2)
Interface and the 4th orifice, the control valve control the first interface and the auxiliary piping of the four-way reversing valve (2)
(19) connect, the first electric expansion valve (8) is closed, the second electric expansion valve (13) is opened, magnetic valve (14) is closed.
6. air-to-water heat pump according to claim 1, it is characterised in that the control valve is three-way diverter valve
(3), the first end of the three-way diverter valve (3) is connected by pipeline with the water-side heat (5), the three-way diverter valve
(3) the second end is connected by pipeline with four-way reversing valve (2), and the 3rd end of the three-way diverter valve (3) connects the auxiliary
Pipeline (19).
7. air-to-water heat pump according to claim 1, it is characterised in that the control valve includes two auxiliary electricity
Magnet valve, one of them is arranged on the pipeline between the auxiliary piping (19) first end and the water-side heat (5), another
It is individual to be arranged on the auxiliary piping (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621458924.7U CN206514566U (en) | 2016-12-27 | 2016-12-27 | Air-to-water heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621458924.7U CN206514566U (en) | 2016-12-27 | 2016-12-27 | Air-to-water heat pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206514566U true CN206514566U (en) | 2017-09-22 |
Family
ID=59862668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621458924.7U Active CN206514566U (en) | 2016-12-27 | 2016-12-27 | Air-to-water heat pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206514566U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595118A (en) * | 2016-12-27 | 2017-04-26 | 珠海格力电器股份有限公司 | Air-cooled cold and hot water unit |
| CN112856889A (en) * | 2021-01-22 | 2021-05-28 | 珠海格力电器股份有限公司 | Refrigerator and control method thereof |
-
2016
- 2016-12-27 CN CN201621458924.7U patent/CN206514566U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595118A (en) * | 2016-12-27 | 2017-04-26 | 珠海格力电器股份有限公司 | Air-cooled cold and hot water unit |
| CN112856889A (en) * | 2021-01-22 | 2021-05-28 | 珠海格力电器股份有限公司 | Refrigerator and control method thereof |
| CN112856889B (en) * | 2021-01-22 | 2022-06-21 | 珠海格力电器股份有限公司 | Refrigerator and control method thereof |
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