CN212157747U - Hydraulic module system - Google Patents
Hydraulic module system Download PDFInfo
- Publication number
- CN212157747U CN212157747U CN202020965791.2U CN202020965791U CN212157747U CN 212157747 U CN212157747 U CN 212157747U CN 202020965791 U CN202020965791 U CN 202020965791U CN 212157747 U CN212157747 U CN 212157747U
- Authority
- CN
- China
- Prior art keywords
- flow path
- heat exchanger
- refrigerant
- water
- refrigerant flow
- 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.)
- Active
Links
Images
Landscapes
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The utility model provides a hydraulic module system, which comprises an outdoor unit; the hydraulic module comprises a first heat exchanger and a second heat exchanger, the first heat exchanger comprises a first refrigerant flow path and a first water flow path, the second heat exchanger comprises a second refrigerant flow path and a second water flow path, and the first refrigerant flow path and the second refrigerant flow path are both connected to the outdoor unit; the tail end of the water storage tank is connected to the first water flow path, and the water storage tank is connected to the second water flow path; the outdoor unit, the first heat exchanger and the tail end form a first heat exchange system, and the outdoor unit, the second heat exchanger and the water storage tank form a second heat exchange system. According to the utility model discloses a water conservancy module system has following beneficial effect at least: the second heat exchanger is added in the hydraulic module, so that the hydraulic module system is provided with two sets of heat exchange systems at the same time, two sets of circulating water paths are output to the outside, domestic hot water and tail end hot/cold water can be supplied respectively at the same time, and the user requirements are met.
Description
Technical Field
The utility model belongs to the technical field of the domestic appliance technique and specifically relates to a hydraulic module system is related to.
Background
A heat exchanger is arranged in a traditional hydraulic module system, is connected with an outdoor unit through a group of refrigerant pipes, and simultaneously outputs a group of circulating water paths to the outside. Domestic hot water and terminal hot/cold water are in the same circulation water route, set up the three-way valve on the circulation water route, carry out the water route and switch between domestic hot water and terminal hot/cold water, lead to the user to have domestic hot water and terminal air conditioner demand simultaneously from this, can not be satisfied.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a can satisfy the water conservancy module system of life hot water and terminal air conditioner demand simultaneously.
According to the utility model discloses hydraulic module system, it includes off-premises station, hydraulic module, end and storage water tank; the hydraulic module comprises a first heat exchanger and a second heat exchanger, the first heat exchanger comprises a first refrigerant flow path and a first water flow path, the second heat exchanger comprises a second refrigerant flow path and a second water flow path, and the first refrigerant flow path and the second refrigerant flow path are both connected to the outdoor unit; the tip is connected to the first water flow path and the storage tank is connected to the second water flow path; the outdoor unit, the first heat exchanger and the tail end form a first heat exchange system, and the outdoor unit, the second heat exchanger and the water storage tank form a second heat exchange system.
According to the utility model discloses water conservancy module system has following beneficial effect at least: the second heat exchanger is added in the hydraulic module, so that the hydraulic module system is provided with two sets of heat exchange systems at the same time, two sets of circulating water paths are output to the outside, domestic hot water and tail end hot/cold water can be provided at the same time, and the user requirements are met.
According to some embodiments of the present invention, the outdoor unit comprises: the condenser is connected with a refrigerant return pipe, and the refrigerant return pipe is connected to the first refrigerant flow path and the second refrigerant flow path; the compressor is connected with a second refrigerant output pipe, and the second refrigerant output pipe is connected to the second refrigerant flow path; the four-way valve comprises a first interface, a second interface, a third interface and a fourth interface, the first interface is connected with a first refrigerant output pipe, the first refrigerant output pipe is connected to the first refrigerant flow path and the second refrigerant flow path, the second interface is connected to the condenser, the third interface is connected to the compressor, the fourth interface is connected to the second refrigerant output pipe, and a first control valve is arranged between the fourth interface and the second refrigerant output pipe.
According to some embodiments of the utility model, the end is floor heating device.
According to some embodiments of the invention, the hydraulic module further comprises an auxiliary heating device located in the first water flow path.
According to some embodiments of the present invention, the hydraulic module further comprises a first pump connected in the first coolant flow path for circulating the water at the end with the first heat exchanger.
According to some embodiments of the utility model, the water conservancy module still includes the second pump body, the second pump body connect in the second refrigerant flow path, be used for making the water of storage water tank be in the storage water tank with circulate between the second heat exchanger.
According to some embodiments of the utility model, the water conservancy module still includes first expansion valve, first expansion valve connect in the refrigerant back flow with between the first heat exchanger, and be located in the first refrigerant flow path.
According to some embodiments of the utility model, the water conservancy module still includes the second expansion valve, the second expansion valve connect in the refrigerant back flow with between the second heat exchanger, and be located in the second refrigerant flow path.
According to some embodiments of the utility model, the water conservancy module still includes the second control valve, the second control valve connect in first refrigerant output tube with between the second heat exchanger, and be located in the second refrigerant flow path.
According to some embodiments of the utility model, the water conservancy module still includes the third control valve, the third control valve connect in the second refrigerant output tube with between the second heat exchanger, and be located in the second refrigerant flow path. .
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic diagram of a hydro-module system according to an embodiment of the present invention.
Reference numerals:
101 outdoor unit
102 hydraulic module
103 first heat exchanger
104 backup heating device
105 first pump body
106 second heat exchanger
107 first expansion valve
108 second expansion valve
109 second pump body
110 terminal
111 water storage tank
112 first control valve
113 second control valve
114 third control valve
115 four-way valve
116 condenser
117 compressor
118 first interface
119 second interface
120 third interface
121 fourth interface
122 refrigerant return pipe
123 first refrigerant output pipe
124 second refrigerant outlet pipe
125 water filling nozzle
126 water outlet
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the first, second, third and fourth are only used for distinguishing technical features, and are not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.
In the description of the present invention, unless otherwise clear and definite limitations, words such as setting, installing, connecting, assembling, matching, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention by combining the specific contents of the technical solutions.
A hydro-modular system of an embodiment of the present invention is described below with reference to fig. 1.
In some embodiments, the hydro module system includes an outdoor unit 101, a hydro module 102, a terminal 110, and a water storage tank 111, where the outdoor unit 101 is configured to exchange heat with a refrigerant; the hydraulic module 102 comprises a first heat exchanger 103 and a second heat exchanger 106, the first heat exchanger 103 comprises a first refrigerant flow path and a first water flow path, heat exchange is carried out between the first refrigerant flow path and the first water flow path, the second heat exchanger 106 comprises a second refrigerant flow path and a second water flow path, heat exchange is carried out between the second refrigerant flow path and the second water flow path, and the first refrigerant flow path and the second refrigerant flow path are both connected to the outdoor unit 101; the tip 110 is connected to the first water flow path and the water storage tank 111 is connected to the second water flow path; the outdoor unit 101, the first heat exchanger 103 and the terminal 110 form a first heat exchange system, and the outdoor unit 101, the second heat exchanger 106 and the water storage tank 111 form a second heat exchange system. In some embodiments, the terminal 110 is an air temperature adjusting device, such as a floor heating device, which is a short for radiant heating of a floor, and uses the whole floor as a radiator, and uniformly heats the whole floor through a heating medium in a radiant layer of the floor, and the heating is achieved by conducting from bottom to top according to the law of heat storage and upward radiation of the floor. It should be noted that the water storage tank 111 has a water filling port 125 and a water outlet port 126.
According to the utility model discloses water conservancy module 102 system has following beneficial effect at least: by adding the second heat exchanger 106 in the hydro module 102, the hydro module system has two sets of heat exchange systems at the same time, in the first heat exchange system, a first set of circulating water paths can be output to the terminal 110, and in the second heat exchange system, a second set of circulating water paths can be output to the water storage tank 111, so that the hydro module system can respectively provide domestic hot water and terminal 110 hot/cold water to meet the requirements of users.
In some embodiments, referring to fig. 1, the outdoor unit 101 includes: the condenser 116, the compressor 117 and the four-way valve 115, the condenser 116 is connected with a refrigerant return pipe 122, and the refrigerant return pipe 122 is connected to a first refrigerant flow path of the first heat exchanger 103 and a second refrigerant flow path of the second heat exchanger 106; the compressor 117 is connected to a second refrigerant output pipe 124, and the second refrigerant output pipe 124 is connected to a second refrigerant flow path of the second heat exchanger 106; the four-way valve 115 includes a first interface 118, a second interface 119, a third interface 120 and a fourth interface 121, the first interface 118 is connected to a first refrigerant output pipe 123, the first refrigerant output pipe 123 is connected to a first refrigerant flow path of the first heat exchanger 103 and a second refrigerant flow path of the second heat exchanger 106, the second interface 119 is connected to the condenser 116, the third interface 120 is connected to the compressor 117, the fourth interface 121 is connected to a second refrigerant output pipe 124, and a first control valve 112 is disposed between the fourth interface 121 and the second refrigerant output pipe 124. It should be noted that the four-way valve 115 is provided in the outdoor unit 101 to facilitate control of the flow direction of the refrigerant, thereby obtaining different adjustment functions. It should be noted that the outdoor unit 101 further includes an external fan (not shown) to enhance the heat exchange effect of the condenser 116.
In some embodiments, referring to fig. 1, the hydro module 102 further includes a backup heating device 104, the backup heating device 104 being located in the first water flow path. The backup heating device 104 is specifically disposed in a water return pipe from the first heat exchanger 103 to the water storage tank 111. The purpose of the backup heating device 104 is to further heat the water to reach the required temperature when the temperature of the water required by the end 110 is higher and cannot be reached by the first heat exchanger 103, and in some embodiments, the backup heating device 104 may be heated by resistance heating, solar heating, gas heating, or the like, which is commonly used in water heaters.
In some embodiments, referring to fig. 1, the hydro module 102 further comprises a first pump body 105, the first pump body 105 being connected in the first water flow path between the tip 110 and the first heat exchanger 103 for circulating water at the tip 110 between the tip 110 and the first heat exchanger 103, the direction of water circulation being indicated by the arrows. It should be noted that a switching valve may be additionally disposed in the pipe between the end 110 and the first heat exchanger 103.
In some embodiments, referring to fig. 1, the hydro module 102 further comprises a second pump 109, the second pump 109 being connected in the second water flow path between the storage tank 111 and the second heat exchanger 106 for circulating water in the storage tank 111 between the storage tank 111 and the second heat exchanger 106, the direction of water circulation being indicated by the arrows.
In some embodiments, referring to fig. 1, the hydraulic module 102 further includes a first expansion valve 107 and a second expansion valve 108, the first expansion valve 107 is connected between the refrigerant return pipe 122 and the first heat exchanger 103 and is located in the first refrigerant flow path, and the second expansion valve 108 is connected between the refrigerant return pipe 122 and the second heat exchanger 106 and is located in the second refrigerant flow path. After entering the hydraulic module 102, the high-temperature refrigerant of the outdoor unit 101 is divided into two paths, one path of the high-temperature refrigerant passes through the first heat exchanger 103, and after being heated by water supplied to the end 110 side, the high-temperature refrigerant returns to the outdoor unit through the first expansion valve 107; the other path passes through a second heat exchanger 106, heats the domestic hot water, passes through a second expansion valve 108, and returns to the outdoor unit 101.
In some embodiments, referring to fig. 1, the hydro module 102 further includes a second control valve 113 and a third control valve 114, the second control valve 113 is connected between the first refrigerant output pipe 123 and the second heat exchanger 106 and is located in the second refrigerant flow path, and the third control valve 114 is connected between the second refrigerant output pipe 124 and the second heat exchanger 106 and is located in the second refrigerant flow path. In some embodiments, the second control valve 113 and the third control valve 114 are both solenoid valves.
In the above embodiment, the outdoor unit 101 has the refrigerant return pipe 122, the first refrigerant output pipe 123 and the second refrigerant output pipe 124, which are connected to the hydraulic module 102, and are specifically connected and matched with the first heat exchanger 103 and the second heat exchanger 106, and through the linkage action of the plurality of control components (specifically including the four-way valve 115, the first control valve 112, the second control valve 113, the third control valve 114, the first expansion valve 107 and the second expansion valve 108), the refrigeration or heating and the heating of the terminal 110 and the domestic hot water can be respectively realized, the heating and the heating of the terminal 110 and the domestic hot water can be simultaneously realized, the domestic hot water is simultaneously heated when the terminal 110 is refrigerated, the heat recovery is realized, and the overall energy efficiency is high. In addition, when the condenser 116 of the outdoor unit 101 needs defrosting, heat can be absorbed from the water storage tank 111 and the tail end 110 at the same time, the defrosting speed is high, and the user experience is good.
To more clearly illustrate the hydro module 102 system of embodiments of the present invention, the control method of the hydro module system in the disabled mode is described in detail below.
The first mode is as follows: individual tip 110 heating mode
The unit receives a heating starting instruction of a user;
the first control valve 112 is opened, the second control valve 113 and the third control valve 114 are closed, the second expansion valve 108 is closed to step 0, the second pump 109 is closed, and the first pump 105 is started; the four-way valve 115 is electrified to change the direction, the external fan is started, the compressor 117 is started, and the first expansion valve 107 is automatically controlled.
In this mode, the high-temperature and high-pressure refrigerant exhausted from the compressor 117 passes through the four-way valve 115, flows into the first heat exchanger 103 in the hydro module 102, transfers heat to the water at the end 110, is throttled by the first expansion valve 107, enters the outdoor unit condenser 116, absorbs heat of air, and then enters the compressor 117 again to complete a heating cycle, so as to realize heating at the end 100.
And a second mode: individual life hot water mode
The unit receives a domestic hot water mode starting instruction of a user;
the first control valve 112 is closed, the second control valve 113 is opened, and the third control valve 114 is closed; when the first expansion valve 107 is closed to 0 step, the first pump body 105 is closed, and the second pump body 109 is started; the four-way valve 115 is electrified to change the direction, the external fan is started, the compressor 117 is started, and the second expansion valve 108 is automatically controlled.
In this mode, the high-temperature and high-pressure refrigerant exhausted from the compressor 117 first flows into the second heat exchanger 106 in the hydro module 102, transfers heat to domestic hot water, is throttled by the second expansion valve 108, enters the outdoor unit condenser 116 to absorb heat of air, passes through the four-way valve 115, and reenters the compressor 117 to complete a heating cycle, so as to heat domestic water.
And a third mode: terminal heating and domestic hot water mode
The unit receives a terminal heating + domestic hot water mode starting instruction of a user;
the first control valve 112 is opened, the second control valve 113 is opened, and the third control valve 114 is closed; first pump 105 and second pump 109 are actuated; the four-way valve 115 is electrified to change the direction, the external fan is started, the compressor 117 is started, and the first expansion valve 107 and the second expansion valve 108 are automatically controlled;
in this mode, the high-temperature and high-pressure refrigerant discharged from the compressor 117 is divided into two paths. One path passes through a second heat exchanger 106 in the hydraulic module 102, transfers heat to domestic hot water, and then is throttled by a second expansion valve 108. The other path passes through a four-way valve 115, flows into the first heat exchanger 103 in the hydro module 102, transfers heat to the water at the end 110, and then is throttled by the first expansion valve 107. The two throttled refrigerants enter the outdoor unit condenser 116 to absorb heat of air, pass through the four-way valve 115, and reenter the compressor 117 to complete a cycle, so as to simultaneously realize heating of the terminal 110 and heating of domestic water.
And a fourth mode: defrosting control mode
The outdoor unit judges that defrosting needs to be carried out on the condenser 116, and simultaneously sends a defrosting signal to the hydraulic module 102;
the first control valve 112 is opened, the second control valve 113 is closed, and the third control valve 114 is opened; the first pump 105 and the second pump 109 start and continue to operate; the four-way valve 115 is not powered on, the external fan is stopped, the second expansion valve 108 and the first expansion valve 107 at the tail end 110 side are opened to the defrosting steps, and the compressor 117 is started;
in this mode, the high-temperature and high-pressure refrigerant exhausted from the compressor 117 passes through the four-way valve 115, enters the outdoor unit condenser 116 first, uses heat for defrosting, enters the hydraulic module 102, is divided into two paths, passes through the second expansion valve 108 and the first expansion valve 107 respectively for throttling, enters the second heat exchanger 106 and the first heat exchanger 103 respectively for absorbing heat, passes through the four-way valve 115, returns to the compressor 117, and completes a cycle to defrost the condenser 116.
And a fifth mode: individual tip 110 refrigeration control
The unit receives a refrigeration starting instruction of a user;
the first control valve 112 is opened, and the second control valve 113 and the third control valve 114 are closed; the second expansion valve 108 is closed to 0 step, and the water pump is closed; the first pump body 105 is started; the four-way valve 115 is not powered on, the external fan is started, the compressor 117 is started, and the first expansion valve 107 is automatically controlled;
in this mode, the high-temperature and high-pressure refrigerant discharged from the compression and exhaust unit flows through the four-way valve 115, enters the outdoor unit condenser 116, enters the hydraulic module 102, is throttled by the first expansion valve 107, enters the first heat exchanger 103, transfers cold energy to the water at the end 110, passes through the four-way valve 115, and finally returns to the compressor 117 to complete a refrigeration cycle, thereby achieving the refrigeration effect on the end 110.
And a fifth mode: heat recovery control mode
The unit receives a refrigerating starting-up instruction and a living hot water mode starting-up instruction of a user;
the first control valve 112 is closed, the second control valve 113 is opened, and the third control valve 114 is closed; the second pump 109 and the first pump 105 start and continue to operate; the four-way valve 115 is not powered on, the external fan is started, the compressor 117 is started, the second expansion valve 108 is opened to the maximum step number, and the first expansion valve 107 is automatically controlled;
in this mode, the high-temperature and high-pressure refrigerant exhausted from the compressor 117 first flows into the second heat exchanger 106 in the hydraulic module 102, transfers heat to domestic hot water, is throttled by the first expansion valve 107, then enters the first heat exchanger 103, transfers cold to water at the tail end 110, finally returns to the compressor 117 through the four-way valve 115, and completes a cycle, thereby achieving the refrigeration effect on the tail end 110 and simultaneously circularly heating the water in the water storage tank 111.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (10)
1. Hydro module system, characterized in that it comprises:
an outdoor unit;
the hydraulic module comprises a first heat exchanger and a second heat exchanger, the first heat exchanger comprises a first refrigerant flow path and a first water flow path, the second heat exchanger comprises a second refrigerant flow path and a second water flow path, and the first refrigerant flow path and the second refrigerant flow path are both connected to the outdoor unit;
a tip connected to the first water flow path;
a water storage tank connected to the second water flow path;
the outdoor unit, the first heat exchanger and the tail end form a first heat exchange system, and the outdoor unit, the second heat exchanger and the water storage tank form a second heat exchange system.
2. The hydro-modular system of claim 1, wherein the outdoor unit comprises:
the condenser is connected with a refrigerant return pipe, and the refrigerant return pipe is connected to the first refrigerant flow path and the second refrigerant flow path;
the compressor is connected with a second refrigerant output pipe, and the second refrigerant output pipe is connected to the second refrigerant flow path;
the four-way valve comprises a first interface, a second interface, a third interface and a fourth interface, the first interface is connected with a first refrigerant output pipe, the first refrigerant output pipe is connected to the first refrigerant flow path and the second refrigerant flow path, the second interface is connected to the condenser, the third interface is connected to the compressor, the fourth interface is connected to the second refrigerant output pipe, and a first control valve is arranged between the fourth interface and the second refrigerant output pipe.
3. The hydro-module system of claim 1, wherein the tip is a floor heating.
4. The hydro-module system of claim 1, further comprising a backup heating device positioned in the first water flow path.
5. The hydrokinetic module system of claim 1, further comprising a first pump coupled in the first coolant flow path for circulating water at the tip between the tip and the first heat exchanger.
6. The hydrokinetic module system of claim 1, further comprising a second pump coupled in the second refrigerant flow path for circulating water from the storage tank between the storage tank and the second heat exchanger.
7. The hydronic module system according to claim 2, wherein the hydronic module further comprises a first expansion valve connected between the refrigerant return line and the first heat exchanger and located in the first refrigerant flow path.
8. The hydronic module system of claim 2, further comprising a second expansion valve coupled between the refrigerant return line and the second heat exchanger and positioned in the second refrigerant flow path.
9. The hydrokinetic module system of claim 2, further comprising a second control valve connected between the first refrigerant output tube and the second heat exchanger and positioned in the second refrigerant flow path.
10. The hydrokinetic module system of claim 2, further comprising a third control valve connected between the second refrigerant output tube and the second heat exchanger and positioned in the second refrigerant flow path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020965791.2U CN212157747U (en) | 2020-05-29 | 2020-05-29 | Hydraulic module system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020965791.2U CN212157747U (en) | 2020-05-29 | 2020-05-29 | Hydraulic module system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212157747U true CN212157747U (en) | 2020-12-15 |
Family
ID=73703063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020965791.2U Active CN212157747U (en) | 2020-05-29 | 2020-05-29 | Hydraulic module system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212157747U (en) |
-
2020
- 2020-05-29 CN CN202020965791.2U patent/CN212157747U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210089035U (en) | Solar energy and air energy coupling hot water, heating and refrigerating system | |
| CN111637659A (en) | High-energy-efficiency heat pump air conditioning system and control method thereof | |
| CN101140122A (en) | Heat pump machine group of combined throttling set | |
| CN202254480U (en) | Multifunctional water-heating air-conditioning system | |
| CN116697639B (en) | Solar energy-air source heat pump coupling hot water, heating, refrigerating and energy storage system and control method thereof | |
| CN203785282U (en) | Hot water system of solar combined multiplex heat pump | |
| CN212481758U (en) | Take trigeminy of heat recovery to supply heat pump set | |
| CN201100796Y (en) | Thermal pump unit of combined flow saving device | |
| CN211567595U (en) | Defrosting control device of electric automobile heat pump air conditioner | |
| CN106403345A (en) | Heat pump system and control method thereof | |
| CN201396983Y (en) | Air-conditioner water heater | |
| CN204535183U (en) | The associating air-conditioner set of cooling and heating load Auto-matching | |
| CN212157747U (en) | Hydraulic module system | |
| CN101266074A (en) | Highly effective energy-saving environment-friendly type heat pump air-conditioner water heater | |
| CN213514443U (en) | Water tank assembly and heat supply system | |
| CN216307942U (en) | Electromagnetic valve assembly device for improving heat efficiency of heat pump heating system | |
| CN100535553C (en) | Air source cold-hot energy machine set | |
| CN209819774U (en) | Air conditioner and integrated circulating pipeline system thereof | |
| CN210014503U (en) | Heat exchange device and heat pump air conditioning system with same | |
| CN102419002A (en) | Equipment combining heat pump water heater and drinking fountain | |
| CN116697638B (en) | Multifunctional coupling system of solar energy-air source heat pump and control method thereof | |
| CN111380209A (en) | Air source heat pump water heater and control method thereof | |
| CN101236029A (en) | Parallel type air-conditioner water heater | |
| CN111380208A (en) | Defrosting method of heat pump water heater | |
| CN110641242A (en) | Defrosting control method and device for heat pump air conditioner of electric vehicle and computer readable storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |