CN105004111B - Air-conditioning system and its control method with defrosting function - Google Patents
Air-conditioning system and its control method with defrosting function Download PDFInfo
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- CN105004111B CN105004111B CN201410173064.1A CN201410173064A CN105004111B CN 105004111 B CN105004111 B CN 105004111B CN 201410173064 A CN201410173064 A CN 201410173064A CN 105004111 B CN105004111 B CN 105004111B
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- Prior art keywords
- heat exchanger
- control valve
- exchanger channels
- air
- conditioning system
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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
- F24F5/0007—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 cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
Abstract
The present invention discloses a kind of air-conditioning system and its control method with defrosting function, in the air-conditioning system with defrosting function, the high-pressure side of the compressor, the First Heat Exchanger, the expansion valve, first heat exchanger channels, the low-pressure side of the gas-liquid separator and the compressor is sequentially connected composition and heats loop, the high-pressure side of the compressor, first heat exchanger channels, the expansion valve, second heat exchanger channels, the low-pressure side of the gas-liquid separator and the compressor is sequentially connected composition defrost loop, by being opened and closed first control valve, second control valve, 3rd control valve, 4th control valve, 5th control valve and the 6th control valve, realization heats work and defrost work, thus, it is simple in construction, and completely cut off completely with the defrost loop positioned at the indoor First Heat Exchanger in defrost, thus, defrost process will not reduce the water temperature of the First Heat Exchanger or the temperature of interior.
Description
Technical field
The present invention relates to air-conditioning system, more particularly to a kind of air-conditioning system and its control method with defrosting function.
Background technology
The energy and environment are the mainstays of a country or social sustainable development, are also economic development, national security
The important leverage lived with people's health.Currently, asked under the pressure of Global climate change, the deterioration of the ecological environment and resource scarcity etc.
Energy conservation is all paid much attention in topic, countries in the world, and China is no exception, and energy conservation is put by the Party Central Committee and State Council in recent years
Unprecedented extrusion position is arrived.
With society the continuous improvement continued to develop with living standards of the people, air conditioner turn into mankind's daily life and
The necessity of office, therefore, the energy-conservation of air conditioner also can not be ignored, and show according to relevant expert's research：Changed in the outdoor of air conditioner
During hot device frosting, the heating load of unit will reduce 29.Therefore, the defrost problem of air conditioner is pendulum in face of Air-conditioner design personnel
Important topic.
The defrost of sale heat pump water heating and air conditioning is realized by four-way valve commutation in the market, using this kind of side
Although formula can reach the purpose of defrost, the water temperature of water-side heat or the temperature of interior can be reduced simultaneously, in this way, causing use
The very big of family is discontented with.
The content of the invention
The main object of the present invention is to provide a kind of air-conditioning system and its control method with defrosting function, it is intended to solve
The problem of current heat pump water heating and air conditioning can reduce the water temperature or indoor temperature of water-side heat while defrost.
To reach above-mentioned technical purpose, the present invention puies forward a kind of air-conditioning system with defrosting function, it include compressor,
First Heat Exchanger, expansion valve, the second heat exchanger and gas-liquid separator, second heat exchanger are located outside：
Second heat exchanger has the first heat exchanger channels and the second heat exchanger channels, wherein, the first heat exchanger channels tool
There are first interface and second interface；
The high-pressure side of the compressor, the First Heat Exchanger, the expansion valve, first heat exchanger channels, the gas
The low-pressure side of liquid/gas separator and the compressor is sequentially connected composition and heats loop, and the expansion valve and the described first heat exchange are logical
The first interface connection in road, the gas-liquid separator is connected with the second interface of first heat exchanger channels, the compressor
Break-make is controlled by installing the first control valve, the First Heat Exchanger and described swollen between high-pressure side and the First Heat Exchanger
Break-make is controlled by installing the second control valve between swollen valve, is passed through between first heat exchanger channels and the gas-liquid separator
3rd control valve is installed to control break-make；
It is the high-pressure side of the compressor, first heat exchanger channels, the expansion valve, second heat exchanger channels, described
The low-pressure side of gas-liquid separator and the compressor is sequentially connected composition defrost loop, the high-pressure side connection of the compressor and institute
The second interface connection of the first heat exchanger channels is stated, the expansion valve is connected with the first interface of first heat exchanger channels, described
Control break-make by installing the 4th control valve between the high-pressure side of compressor and first heat exchanger channels, the expansion valve and
Break-make, second heat exchanger channels and the gas-liquid point are controlled between second heat exchanger channels by installing the 5th control valve
From between device break-make is controlled by installing the 6th control valve.
Preferably, first control valve, the 3rd control valve, the 4th control valve and the 5th control valve are equal
For solenoid electric valve, second control valve and the 6th control valve are check valve, wherein, the conducting of second control valve
Direction is that, from the First Heat Exchanger to the expansion valve, the conducting direction of the 6th control valve is logical from the described second heat exchange
Road is to the gas-liquid separator；
Preferably, second heat exchanger is finned heat exchanger；
Preferably, first heat exchanger channels are lived apart by two in the outer layer heat exchanger channels of the second heat exchanger channels both sides
Parallel connection is formed；
Preferably, second heat exchanger channels are formed by many radiator coil tube parallel connections, and each outer layer heat exchange is logical
Road is also formed by many radiator coil tube parallel connections.
The present invention provides a kind of control method of the air-conditioning system described above with defrosting function, the air-conditioning system again
At least have and heat working cycles and defrost working cycles, wherein,
When the air-conditioning system is in defrost working cycles：4th control valve, the 5th control valve and described
Six control valves are in the conduction state, and first control valve, second control valve and the 3rd control valve are in cut-off shape
State；
The air-conditioning system is in when heating working condition：First control valve, second control valve and described
Three control valves are in the conduction state, and the 4th control valve, the 5th control valve and the 6th control valve are in cut-off shape
State.
Preferably, second heat exchanger is finned heat exchanger；
Preferably, first heat exchanger channels are lived apart by two in the outer layer heat exchanger channels of the second heat exchanger channels both sides
Parallel connection is formed；
Preferably, second heat exchanger channels are formed by many radiator coil tube parallel connections, and each outer layer heat exchange is logical
Road is also formed by many radiator coil tube parallel connections.
Preferably, first control valve, the 3rd control valve, the 4th control valve and the 5th control valve are equal
For solenoid electric valve, second control valve and the 6th control valve are check valve, wherein, the conducting of second control valve
Direction is that, from the First Heat Exchanger to the expansion valve, the conducting direction of the 6th control valve is logical from the described second heat exchange
Road is to the gas-liquid separator.
The air-conditioning system and its control method with defrosting function of the present invention, in the air-conditioning system with defrosting function
In system, the high-pressure side of the compressor, the First Heat Exchanger, the expansion valve, first heat exchanger channels, the gas-liquid point
Low-pressure side from device and the compressor is sequentially connected composition and heats loop, the high-pressure side of the compressor, first heat exchange
Passage, the expansion valve, second heat exchanger channels, the low-pressure side of the gas-liquid separator and the compressor are sequentially connected structure
Into defrost loop, by being opened and closed first control valve, second control valve, the 3rd control valve, the 4th control
Valve, the 5th control valve and the 6th control valve, can be achieved with heating work and defrost work, thus, it is simple in construction, and
And completely cut off completely with the defrost loop positioned at the indoor First Heat Exchanger in defrost, thus, defrost process will not drop
The water temperature of the low First Heat Exchanger or the temperature of interior.
Brief description of the drawings
The connection schematic diagram of one embodiment of the air-conditioning system with defrosting function that Fig. 1 present invention is provided；
Fig. 2 is connection equivalent schematic of the air-conditioning system with defrosting function when heating work shown in Fig. 1；
Fig. 3 is connection equivalent schematic of the air-conditioning system with defrosting function when defrost works shown in Fig. 1；
Fig. 4 is a floor map of the second heat exchanger of the air-conditioning system with defrosting function shown in Fig. 1；
Fig. 5 is another floor map of the second heat exchanger of the air-conditioning system with defrosting function shown in Fig. 1.
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
Technical scheme is further illustrated below in conjunction with Figure of description and specific embodiment.It should be appreciated that this
The specific embodiment of place description is not intended to limit the present invention only to explain the present invention.
The present invention puies forward a kind of air-conditioning system with defrosting function, and referring to Fig. 1 to Fig. 5 for what the present invention was provided has change
The schematic diagram of one embodiment of the air-conditioning system of white function, the embodiment is the Teat pump boiler with defrosting function, and it includes
Compressor 1, First Heat Exchanger 2, expansion valve 3, the second heat exchanger 4 and gas-liquid separator 5, wherein, First Heat Exchanger 2 is that water side is changed
Hot device, the second heat exchanger 4 is air side heat exchanger, the second heat exchanger 4 have the first heat exchanger channels (in the present embodiment be two outer layers
Heat exchanger channels 41) and the second heat exchanger channels 42, the first heat exchanger channels have first interface a and second interface b, the second heat exchanger channels
42 have the 3rd interface c and the 4th interface d.
High-pressure side H, First Heat Exchanger 2, expansion valve 3, the first heat exchanger channels, gas-liquid separator 5 and the compressor of compressor 1
1 low-pressure side L is sequentially connected composition and heats loop, and expansion valve 3 is connected with the first interface a of the first heat exchanger channels, gas-liquid separation
Device 5 is connected with the second interface b of the first heat exchanger channels, by installing the between the high-pressure side H and First Heat Exchanger 2 of compressor 1
One control valve 61 controls break-make, and break-make is controlled by installing second control valve 62 between First Heat Exchanger 2 and expansion valve 3,
Between first heat exchanger channels and gas-liquid separator 5 break-make is controlled by installing the 3rd control valve 63.
High-pressure side H, the first heat exchanger channels, expansion valve 3, the second heat exchanger channels 42, gas-liquid separator 5 and the pressure of compressor 1
The low-pressure side L of contracting machine 1 is sequentially connected composition defrost loop, the high-pressure side H of compressor 1 and the second interface b of the first heat exchanger channels
Connection, the two ends of expansion valve 3 connect with the first interface a of the first heat exchanger channels and the 3rd interface c of the second heat exchanger channels 42 respectively
Connect, gas-liquid separator 5 is connected with the 4th interface d of the second heat exchanger channels 42, the high-pressure side H and the first heat exchanger channels of compressor 1
Between by install the 4th control valve 64 come control between break-make, the heat exchanger channels 42 of expansion valve 3 and second by install the 5th control
Valve 65 processed controls break-make, controls to lead to by installing the 6th control valve 66 between the second heat exchanger channels 42 and gas-liquid separator 5
It is disconnected.
The air-conditioning system, which has, heats working cycles and defrost working cycles, specific as follows：
The air-conditioning system is in when heating working cycles：First control valve 61, the second control valve 62 and the 3rd control valve 63
In the conduction state, the 4th control valve 64, the 5th control valve 65 and the 6th control valve 66 are in cut-off state, heat loop and are in
Channel status, defrost loop is in off state, opens compressor 1, and HTHP refrigerant is discharged from the high-pressure side H of compressor 1,
First Heat Exchanger 2 and expansion valve 3 are first passed around, and enters the first heat exchanger channels from the first interface a of the first heat exchanger channels, is connect
, exported from the second interface b of the first heat exchanger channels to gas-liquid separator 5, finally, compressor 1 is recycled to from gas-liquid separator 5
Low-pressure side L, progress heat working cycles.
The air-conditioning system is controlled in defrost working cycles：4th control valve 64, the 5th control valve 65 and the 6th control valve
66 is in the conduction state, and the first control valve 61, the second control valve 62 and the 3rd control valve 63 are at cut-off state, defrost loop
In channel status, heat loop and be in off state, open compressor 1, the high-pressure side H discharge HTHPs from compressor 1 are cold
Matchmaker, first, enters the first heat exchanger channels from the second interface b of the first heat exchanger channels, then, is connect from the first of the first heat exchanger channels
Mouth a is exported to expansion valve 3, and then, self-expanding valve 3 is inputted to the 3rd interface c of the second heat exchanger channels 42, then, is changed from second
4th interface d of the passage of heat is exported to gas-liquid separator 5, finally, the low-pressure side L of compressor 1 is recycled to from gas-liquid separator 5,
Carry out defrost working cycles.
It should be noted that：In the present invention, the differentiation of working cycles and defrost working cycles without priority is heated, can be regarded
Actual frosting situation and switch, and the air-conditioning system is in addition to working cycles and defrost working cycles are heated, and can also have it
His working cycles, such as refrigeration work are circulated.
Obviously, in the air-conditioning system with defrosting function that the present invention is provided, the first control valve of folding 61, second is passed through
Control valve 62, the 3rd control valve 63, the 4th control valve 64, the 5th control valve 65 and the 6th control valve 66, can be achieved with two kinds of systems
Thermal technology makees and defrost work, thus, it is simple in construction, and in defrost, First Heat Exchanger 2 completely cuts off with defrost loop completely, because
And, defrost process will not reduce the water temperature of the First Heat Exchanger 2 or the temperature of interior.
In the present embodiment, the first control valve 61, the 3rd control valve 63, the 4th control valve 64 and the 5th control valve 65 are
Solenoid electric valve, the second control valve 62 and the 6th control valve 66 are check valve, wherein, the conducting direction of the second control valve 62 is certainly
First Heat Exchanger 2 to expansion valve 3, the conducting direction of the 6th control valve 66 be from the second heat exchanger channels 42 to gas-liquid separator 5, should
Air-conditioning system is when heating working cycles:The control valve 63 of first control valve 61 the 3rd is in the conduction state, the 4th control valve 64 and
5th control valve 65 is in cut-off state, heats loop and is in channel status, defrost loop is in off state, opens compressor
1, progress heats working cycles.The air-conditioning system is in defrost working cycles：4th control valve 64 and the 5th control valve 65 are in
Conducting state, the first control valve 61 and the 3rd control valve 63 are in cut-off state, and defrost loop is in channel status, heats loop
In off state, compressor 1 is opened, defrost working cycles are carried out.Obviously, in this embodiment, heat working cycles and
In defrost working cycles, the quantity for the control valve for needing to control opening and closing is reduced (because check valve is heating working cycles and change
State is the same in white working cycles, it is not necessary to switching control), and then so that the air-conditioning system be more convenient for controlling and run it is steady
It is qualitative more preferable.
In the present embodiment, the second heat exchanger 4 is finned heat exchanger, it is clear that the design not limited to this, the second heat exchanger
4 can also use other kinds of heat exchanger.
In the present embodiment, the first heat exchanger channels are by living apart in two outer layer heat exchanger channels of the both sides of the second heat exchanger channels 42
41 parallel connections are formed, thus, the second heat exchanger 4 has three layers of heat dissipation channel, and when defrost works, outer layer heat exchanger channels 41
In refrigerant and the second heat exchanger channels 42 in refrigerant be in the state of reverse flow, thus the second heat exchanger 4 can be accelerated
Heat exchange, and then, defrost all time can be saved and defrost efficiency is improved, the second heat exchanger channels 42 are by many radiator coil tubes
12 parallel connections are formed, and each outer layer heat exchanger channels 41 are also connected in parallel by many radiator coil tubes 12 and formed, further to increase
Heat exchange area and improve defrost efficiency.
The preferred embodiments of the present invention are these are only, its scope of the claims is not thereby limited, it is every to utilize explanation of the invention
Equivalent structure or equivalent flow conversion that book and accompanying drawing content are made, are directly or indirectly used in other related technical fields,
It is included within the scope of the present invention.
Claims (10)
1. a kind of air-conditioning system with defrosting function, it include compressor, First Heat Exchanger, expansion valve, the second heat exchanger and
Gas-liquid separator, second heat exchanger is located outside, it is characterised in that：
Second heat exchanger has the first heat exchanger channels and the second heat exchanger channels, wherein, first heat exchanger channels have the
One interface and second interface；
The high-pressure side of the compressor, the First Heat Exchanger, the expansion valve, first heat exchanger channels, the gas-liquid point
Low-pressure side from device and the compressor is sequentially connected composition and heats loop, and the expansion valve and first heat exchanger channels
First interface is connected, and the gas-liquid separator is connected with the second interface of first heat exchanger channels, the high pressure of the compressor
Between side and the First Heat Exchanger break-make, the First Heat Exchanger and the expansion valve are controlled by installing the first control valve
Between control break-make by installing the second control valve, pass through between first heat exchanger channels and the gas-liquid separator and install
3rd control valve controls break-make；
The high-pressure side of the compressor, first heat exchanger channels, the expansion valve, second heat exchanger channels, the gas-liquid
The low-pressure side of separator and the compressor is sequentially connected composition defrost loop, the high-pressure side connection of the compressor and described the
The second interface connection of one heat exchanger channels, the expansion valve is connected with the first interface of first heat exchanger channels, the compression
Break-make is controlled by installing the 4th control valve, the expansion valve and described between the high-pressure side of machine and first heat exchanger channels
Between second heat exchanger channels break-make, second heat exchanger channels and the gas-liquid separator are controlled by installing the 5th control valve
Between control break-make by installing the 6th control valve.
2. there is the air-conditioning system of defrosting function as claimed in claim 1, it is characterised in that first control valve, described
3rd control valve, the 4th control valve and the 5th control valve are solenoid electric valve, second control valve and described
6th control valve is check valve, wherein, the conducting direction of second control valve is from the First Heat Exchanger to the expansion
Valve, the conducting direction of the 6th control valve is from second heat exchanger channels to the gas-liquid separator.
3. there is the air-conditioning system of defrosting function as claimed in claim 1, it is characterised in that second heat exchanger is fin
Formula heat exchanger.
4. there is the air-conditioning system of defrosting function as claimed in claim 3, it is characterised in that first heat exchanger channels are by two
The individual outer layer heat exchanger channels parallel connection lived apart in the second heat exchanger channels both sides is formed.
5. there is the air-conditioning system of defrosting function as claimed in claim 4, it is characterised in that second heat exchanger channels are by more
Root radiator coil tube parallel connection is formed, and each outer layer heat exchanger channels are also formed by many radiator coil tube parallel connections.
6. a kind of control method of the air-conditioning system as claimed in claim 1 with defrosting function, it is characterised in that the sky
Adjusting system, which at least has, heats working cycles and defrost working cycles, wherein,
When the air-conditioning system is in defrost working cycles：4th control valve, the 5th control valve and the 6th control
Valve processed is in the conduction state, and first control valve, second control valve and the 3rd control valve are in cut-off state；
The air-conditioning system is in when heating working condition：First control valve, second control valve and the 3rd control
Valve processed is in the conduction state, and the 4th control valve, the 5th control valve and the 6th control valve are in cut-off state.
7. there is the control method of the air-conditioning system of defrosting function as claimed in claim 6, it is characterised in that described second changes
Hot device is finned heat exchanger.
8. there is the control method of the air-conditioning system of defrosting function as claimed in claim 6, it is characterised in that described first changes
The outer layer heat exchanger channels parallel connection that the passage of heat is lived apart by two in the second heat exchanger channels both sides is formed.
9. there is the control method of the air-conditioning system of defrosting function as claimed in claim 8, it is characterised in that described second changes
The passage of heat is formed by many radiator coil tube parallel connections, and each outer layer heat exchanger channels are also connected in parallel by many radiator coil tubes
Form.
10. there is the control method of the air-conditioning system of defrosting function as claimed in claim 6, it is characterised in that described first
Control valve, the 3rd control valve, the 4th control valve and the 5th control valve are solenoid electric valve, second control
Valve processed and the 6th control valve are check valve, wherein, the conducting direction of second control valve is from the First Heat Exchanger
To the expansion valve, the conducting direction of the 6th control valve is from second heat exchanger channels to the gas-liquid separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410173064.1A CN105004111B (en) | 2014-04-25 | 2014-04-25 | Air-conditioning system and its control method with defrosting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410173064.1A CN105004111B (en) | 2014-04-25 | 2014-04-25 | Air-conditioning system and its control method with defrosting function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105004111A CN105004111A (en) | 2015-10-28 |
| CN105004111B true CN105004111B (en) | 2017-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410173064.1A Active CN105004111B (en) | 2014-04-25 | 2014-04-25 | Air-conditioning system and its control method with defrosting function |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115682174A (en) * | 2021-07-31 | 2023-02-03 | 广东美的制冷设备有限公司 | Air conditioner, control method of air conditioner, and readable storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101387455A (en) * | 2008-09-02 | 2009-03-18 | Tcl集团股份有限公司 | Parallel flow air conditioner and defrosting control method thereof |
| CN101660808A (en) * | 2008-08-29 | 2010-03-03 | Tcl集团股份有限公司 | Air conditioner and frost removal control method thereof |
| CN201954862U (en) * | 2011-04-01 | 2011-08-31 | Tcl空调器(中山)有限公司 | Split air conditioner with defrosting function |
| KR20140026085A (en) * | 2012-08-24 | 2014-03-05 | (주)승보하이테크 | Air conditioning and heating system |
| US8677772B2 (en) * | 2010-12-22 | 2014-03-25 | Automotive Research & Testing Center | Air conditioning system for a vehicle |
-
2014
- 2014-04-25 CN CN201410173064.1A patent/CN105004111B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101660808A (en) * | 2008-08-29 | 2010-03-03 | Tcl集团股份有限公司 | Air conditioner and frost removal control method thereof |
| CN101387455A (en) * | 2008-09-02 | 2009-03-18 | Tcl集团股份有限公司 | Parallel flow air conditioner and defrosting control method thereof |
| US8677772B2 (en) * | 2010-12-22 | 2014-03-25 | Automotive Research & Testing Center | Air conditioning system for a vehicle |
| CN201954862U (en) * | 2011-04-01 | 2011-08-31 | Tcl空调器(中山)有限公司 | Split air conditioner with defrosting function |
| KR20140026085A (en) * | 2012-08-24 | 2014-03-05 | (주)승보하이테크 | Air conditioning and heating system |
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| Publication number | Publication date |
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| CN105004111A (en) | 2015-10-28 |
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