CN103574857A - Variable frequency air conditioning system and control method thereof - Google Patents
Variable frequency air conditioning system and control method thereof Download PDFInfo
- Publication number
- CN103574857A CN103574857A CN201310510479.9A CN201310510479A CN103574857A CN 103574857 A CN103574857 A CN 103574857A CN 201310510479 A CN201310510479 A CN 201310510479A CN 103574857 A CN103574857 A CN 103574857A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- frequency
- conditioning system
- temperature
- sensor
- 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.)
- Granted
Links
Images
Abstract
The invention discloses a variable frequency air conditioning system and a control method thereof. The variable frequency air conditioning system comprises a main refrigerant loop. The main refrigerant loop is provided with a compressor, a four-way reversing valve, an outdoor heat exchanger, an indoor heat exchanger and a controller temperature reduction loop, wherein one end of the controller temperature reduction loop is communicated with the outlet of the outdoor heat exchanger and the other end of the controller temperature reduction loop is communicated with an air suction port of the compressor. The variable frequency air conditioning system can efficiently and reliably operate.
Description
Technical field
The invention belongs to air-conditioner field, relate in particular to a kind of frequency-conversion air-conditioning system and control method thereof.
Background technology
Existing transducer air conditioning, its compressor frequency range of operation is generally at 20～90Hz, continuous rising along with outdoor environment temperature, air conditioner load strengthens increased power, causes controller power constantly to raise, and controller module temperature also constantly raises, even arrive more than 105 ℃, controller heating temp has limited the high-frequency operation of compressor, and the demand of refrigerating capacity (or heating capacity) is now often larger, so the not enough impact of refrigerating capacity (or heating capacity) is also more outstanding.
Have again; air-conditioner outdoor unit installation environment also has higher requirement; that air-conditioner outdoor unit installation environment need to ventilate is smooth and easy, avoid the environment such as dust and greasy dirt; and in actual use; along with air-conditioning is elongated service time, outdoor finned heat exchanger can be covered by dust, under hot weather; due to the bad faults frequent that easily causes convertible frequency air-conditioner of heat radiation, air-conditioning does not freeze or disorderly closedown protection.
Summary of the invention
The present invention is mainly to provide a kind of frequency-conversion air-conditioning system and control method thereof, can efficient, reliability service.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals: a kind of frequency-conversion air-conditioning system, comprise main refrigerant loop, described main refrigerant is provided with compressor, four-way change-over valve, outdoor heat exchanger and indoor heat exchanger on loop, also comprise controller cooling loop, described controller cooling one end, loop is connected with the outlet of described outdoor heat exchanger, and the other end is connected with the air entry of described compressor reducer.
As preferably, described controller cooling is provided with for the frequency conversion radiator to controller heat radiation on loop, and described frequency conversion radiator comprises frequency-variable controller heat exchanger and the frequency-variable controller blower fan matching with described frequency-variable controller heat exchanger.
As preferably, on described controller cooling loop, be also provided with for controlling the throttling arrangement in described controller cooling loop.Throttling arrangement is for controlling the break-make in controller cooling loop.
As preferably, described throttling arrangement is electromagnetic throttle valve.
As preferably, described frequency-conversion air-conditioning system includes and detects the radiator sensor of frequency conversion radiator coil temperature and the radiator outlet sensor that detects the outlet temperature of described frequency conversion radiator.
As preferably, between described outdoor heat exchanger and indoor heat exchanger, be connected with first throttle valve, the outlet of described first throttle valve is also connected with described controller cooling loop.Be that controller cooling one end, loop divides two-way to be connected with main refrigerant loop, one tunnel is connected on the pipeline between outdoor heat exchanger and first throttle valve, another road is connected on the pipeline between first throttle valve and indoor heat exchanger, thereby can under refrigeration and heating mode, guarantee the effect in controller cooling loop simultaneously.
As preferably, between described controller cooling loop and described outdoor heat exchanger, be provided with the second check valve, between the outlet of described first throttle valve and described controller cooling loop, be provided with the 3rd check valve.
As preferably, described first throttle valve two ends are connected with respectively the first filter and the second filter.
As preferably, described frequency-conversion air-conditioning system comprises the exhaust sensor, the return-air sensor that detects compressor return air temperature that detect compressor exhaust temperature, detect the outdoor sensor of outdoor environment temperature, in the outdoor coil pipe used sensor of sensing chamber's external heat exchanger coil temperature, the indoor heat exchanger inlet sensor that detects indoor heat exchanger inlet temperature, sensing chamber the indoor heat exchanger coil pipe sensor of heat exchanger coils temperature, in the interior sensor that detects indoor environment temperature and sensing chamber the indoor heat exchanger of heat exchanger outlet temperature export sensor.
A kind of control method of frequency-conversion air-conditioning system as claimed in claim 1, described controller cooling is provided with for the frequency conversion radiator to controller heat radiation on loop, described frequency conversion radiator comprises frequency-variable controller heat exchanger and frequency-variable controller blower fan, it is characterized in that, comprises the following steps:
(1) temperature, frequency detecting step: the coil temperature TA, the compressor actual motion frequency f that detect described frequency-variable controller heat exchanger
0;
(2) controller cooling loop cooling step:
As 85 ℃≤TA≤90 ℃ and f
0the current compressor setpoint frequency of < f
atime
,described controller cooling loop is closed, described frequency-variable controller blower fan energising operation;
When 90 ℃ of < TA≤95 ℃, and f
0< f
atime
,open in described controller cooling loop, access described main refrigerant loop, controller cooling loop, the power-off of described frequency-variable controller blower fan;
As preferably, in described step 2 when 105 ℃ of 95 ℃ of TA > or compressor exhaust temperature TB >, the operation frequently of controller limit.
As preferably, in described step 2: when TA drops to 83 ℃, stop described controller loop cooling step.
As preferably, in described step 2, work as 85 ℃ of TA < and f
0>=f
atime, described controller cooling loop is closed condition, described frequency-variable controller blower fan is off-position.
As preferably, during refrigerating operaton, according to the temperature difference at indoor heat exchanger entrance point and port of export two ends, regulate the aperture that is arranged on the choke valve between indoor heat exchanger and outdoor heat exchanger, and carry out degree of superheat correction according to the temperature difference of the indoor indoor heat exchanger port of export and compressor air suction end.
As preferably, during heating operation, according to the temperature difference at indoor indoor heat exchanger entrance point and port of export two ends, regulate the aperture that is arranged on the choke valve between indoor heat exchanger and outdoor heat exchanger, and carry out degree of superheat correction according to the temperature difference of the coil temperature of outdoor outdoor heat exchanger and compressor air suction end temperature.
As preferably, when outdoor environment temperature TC≤-15 ℃, open in described controller cooling loop, described frequency-variable controller blower fan energising operation.
As preferably, when 2 ℃ of TD-TE <, increase the aperture of choke valve on described controller cooling loop;
When 4 ℃ of TD-TE >, reduce the aperture of choke valve on described controller cooling loop;
When 2 ℃≤TD-TE≤4 ℃, on described controller cooling loop, the aperture of choke valve is constant.
Above-mentioned TD is the port of export temperature of frequency conversion radiator, and TE is compressor inlet end temperature.
As preferably, during 102 ℃ of exhaust sensor TB >, open in described controller cooling loop.
The beneficial effect that the present invention brings is, carries out electric motor temperature reduction or Liquid injection cooling controller when the present invention is freezed, and reduces controller temperature, realizes the operation of unit high temperature environment refrigerating; During low-temperature heating, carry out jetly, improve air inflow and promote heating capacity, make controller reliably, efficiently operation; Automatic regulation controller temperature of the present invention, effectively improves controller reliability, realizes refrigeration under high ambient temperature, heats high-frequency operation, has improved high-temperature refrigeration amount and low-temperature heating capacity, makes room fast temperature rising.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of structural representation of the present invention;
A kind of structural representation when accompanying drawing 2 is refrigerating operaton of the present invention;
A kind of structural representation when accompanying drawing 3 is heating operation of the present invention.
Label declaration: 1, compressor; 2, four-way change-over valve; 3, outdoor heat exchanger; 4, outdoor heat exchanger blower fan; 5, the first filter; 6, first throttle valve; 7, the second filter; 8, indoor heat exchanger; 9, the first check valve; 10, indoor heat exchanger blower fan; 11, frequency-variable controller blower fan; 12, frequency conversion radiator; 13, frequency-variable controller heat exchanger; 14, electromagnetic throttle valve; 15, the second check valve; 16, the 3rd check valve; TP1, exhaust sensor; TP2, return-air sensor; TP3, outdoor sensor; TP4, outdoor coil pipe used sensor; TP5, indoor heat exchanger inlet sensor; TP6, indoor heat exchanger coil pipe sensor; TP7, interior sensor; TP8, indoor heat exchanger outlet sensor; TP9, radiator outlet sensor; TP10, radiator sensor.
The specific embodiment
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment: the frequency-conversion air-conditioning system of the present embodiment as shown in Figure 1, comprise main refrigerant loop and controller cooling loop, main refrigerant is provided with compressor on loop, four-way change-over valve, outdoor heat exchanger, outdoor heat exchanger blower fan, the first filter, first throttle valve, the second filter, indoor heat exchanger, indoor heat exchanger blower fan, compressor, four-way change-over valve, outdoor heat exchanger, the first filter, first throttle valve, the second filter, indoor heat exchanger is connected to form main refrigerant loop successively by pipeline, controller cooling is provided with for the frequency conversion radiator to controller heat radiation on loop, for controlling electromagnetic throttle valve and first check valve in controller cooling loop.
A plurality of temperature sensors are also installed on frequency-conversion air-conditioning system, these temperature sensors comprise the exhaust sensor that detects compressor reducer delivery temperature, detect the return-air sensor of compressor return air temperature, detect the outdoor sensor of outdoor environment temperature, the outdoor coil pipe used sensor of sensing chamber's external heat exchanger coil temperature, detect the indoor heat exchanger inlet sensor of indoor heat exchanger inlet temperature, the indoor heat exchanger coil pipe sensor of heat exchanger coils temperature in sensing chamber, the indoor heat exchanger outlet sensor of heat exchanger outlet temperature in the interior sensor of detection indoor environment temperature and sensing chamber, detect the radiator sensor of frequency conversion radiator coil temperature, and the radiator outlet sensor that detects the outlet temperature of frequency conversion radiator.
First branch road of controller cooling one end, loop is by the pipeline between the second check valve access outdoor heat exchanger and first throttle valve, be that controller cooling loop is connected with the outlet of outdoor heat exchanger by the second check valve, the second branch road of this end is by the pipeline between the 3rd check valve access first throttle valve and indoor heat exchanger, i.e. controller cooling loop is connected with indoor heat exchanger by the 3rd check valve.
The controller cooling loop other end is connected with the air entry of compressor reducer by the first check valve.
Frequency conversion radiator comprises frequency-variable controller heat exchanger and the frequency-variable controller blower fan matching with frequency-variable controller heat exchanger.Frequency-variable controller heat exchanger comprises housing and cooling coil.
as shown in Figure 2, during refrigerating operaton:refrigerant gas is discharged from exhaust outlet of compressor, enter four-way change-over valve, then enter outdoor heat exchanger import by four-way change-over valve, high pressure, high temperature refrigerant cooling is flowed out by outdoor heat exchanger, then divide two-way to flow: the first via enters the first filter, and the second tunnel enters the second check valve.The first via cold-producing medium flowing out from outdoor heat exchanger enters the first filter and filters, from the first filter other end flows out, high-pressure refrigerant enters first throttle valve and carries out throttling, after throttling, cold-producing medium enters the second filter from first segment choke valve, the cold-producing medium flowing out from the second filter divides two-way to flow subsequently: a road enters the 3rd check valve inlet, one tunnel enters indoor heat exchanger and enter four-way change-over valve after indoor heat exchanger evaporation, again from four-way change-over valve flows out, through compressor air entry, enter compressor compresses, so repeatedly kind of refrigeration cycle.
Under normality, electromagnetic throttle valve is closed condition, i.e. controller cooling loop is closed condition, and main refrigerant loop is not accessed in controller cooling loop.When open in controller cooling loop, the the second road cold-producing medium flowing out from outdoor heat exchanger enters the second check valve, from the second check valve other end, flow out, after electromagnetic throttle valve throttling, enter frequency-variable controller interchanger, liquid refrigerant, after the evaporation of frequency-variable controller interchanger, enters the first check valve, from the first check valve flows out, by compressor air suction mouth, enter compressor.
as shown in Figure 3, during heating operation:refrigerant gas is discharged from exhaust outlet of compressor, enter four-way change-over valve, by four-way change-over valve, enter indoor heat exchanger heat release condensation again, high pressure, high temperature refrigerant cooling is flowed out by indoor heat exchanger, then divide two-way to flow: the first via enters the second filter, and the second tunnel enters the 3rd check valve inlet.The first via cold-producing medium flowing out from indoor heat exchanger enters the second filter filtration, from the second filter other end flows out, enter first throttle valve and carry out throttling, after throttling, cold-producing medium enters after the first filter filters and flows out, and the cold-producing medium flowing out from the first filter divides two-way to flow subsequently: a road enters the second check valve; One tunnel enters outdoor heat exchanger and evaporates, and the refrigerant gas flowing out after evaporation enters four-way change-over valve, then from four-way change-over valve flows out, enters compressor compresses, so repeatedly kind of refrigeration cycle through compressor air entry.
Under normality, electromagnetic throttle valve is closed condition, i.e. controller cooling loop is closed condition, and main refrigerant loop is not accessed in controller cooling loop.When open in controller cooling loop, the the second road cold-producing medium flowing out from indoor heat exchanger enters the 3rd check valve, from the 3rd check valve other end, flow out, after electromagnetic throttle valve throttling, enter frequency-variable controller interchanger, liquid refrigerant, after the evaporation of frequency-variable controller interchanger, enters the first check valve, from the first check valve flows out, by compressor air suction mouth, enter compressor.
When 95 ℃ of the coil temperature TA of frequency-variable controller heat exchanger >; controller module surface temperature raises; unit there will be frequency limitation operation; higher when 105 ℃ of TA >; long-play is prone to the serious consequences such as punch through damage, the shutdown of unit fault alarm, and impact is normal to be used and reliability.
A control method for frequency-conversion air-conditioning system, comprises the following steps:
(1) temperature, frequency detecting step: the coil temperature TA, the compressor actual motion frequency f that detect frequency-variable controller heat exchanger
0.
(2) degree of superheat correction step:
As 85 ℃ of TA < and f
0>=f
atime, electromagnetic throttle valve no power, controller cooling loop is closed condition, frequency-variable controller blower fan is off-position; During refrigerating operaton, according to the temperature difference at indoor indoor heat exchanger entrance point and port of export two ends, regulate the aperture that is arranged on the choke valve between indoor heat exchanger and outdoor heat exchanger, and carry out degree of superheat correction according to the temperature difference of the indoor indoor heat exchanger port of export and compressor air suction end; During heating operation, according to indoor heat exchanger coil temperature Tm(, be indoor heat exchanger temperature) regulate the aperture of the first throttle valve being arranged between indoor heat exchanger and outdoor heat exchanger, during Tm≤target temperature-2 ℃, the current operational objective aperture of choke valve basis-2; During Tm < target temperature+1 ℃, choke valve keeps current operational objective aperture; During Tm > target temperature+2 ℃, the current operational objective aperture of choke valve basis+2; The every 30S of controller detects and adjusts 1 time; And carry out degree of superheat correction according to the temperature difference of the coil temperature of outdoor outdoor heat exchanger and compressor air suction end temperature.
(3) controller cooling loop cooling step:
A, as 85 ℃≤TA≤90 ℃ and f
0the current compressor setpoint frequency of < f
atime, electromagnetic throttle valve no power, controller cooling loop is closed, frequency-variable controller blower fan energising operation; f
0>=f
atime, maintain the original state;
B, as 90 ℃ of < TA≤95 ℃ and f
0< f
atime, electromagnetic throttle valve energising is opened, and controller cooling loop is opened, access described main refrigerant loop, controller cooling loop, the power-off of frequency-variable controller blower fan; f
0>=f
atime, maintain the original state;
In c, controller loop cooling step, when TA drops to 83 ℃, stop control cooling loop cooling step;
As 80 ℃ of < TA≤95 ℃ and f
0< f
atime, controller can frequent be adjusted and switch, low unstable when high during performance, now adopts controller cooling loop effectively to reduce controller temperature, and the energy-efficient performance of air-conditioning is also improved.
(4) controller limit frequency operating procedure:
When 105 ℃ of 95 ℃ of TA > or compressor exhaust temperature TB >, air-conditioning enters limit operation frequently.Frequently in service in limit, controller moves with 2Hz/min speed.
When 102 ℃ of TB >, open in controller cooling loop.
(5) low temperature high frequency increases enthalpy drop temperature heating operation step:
When outdoor environment temperature TC≤-15 ℃, open in controller cooling loop, frequency-variable controller blower fan energising operation.
A, when 2 ℃ of TD-TE <, increase the aperture of choke valve on controller cooling loop;
B, when 4 ℃ of TD-TE >, reduce the aperture of choke valve on controller cooling loop;
C, when 2 ℃≤TD-TE≤4 ℃, on controller cooling loop, the aperture of choke valve is constant.
Above-mentioned TD is the port of export temperature of frequency device radiator, and TE is compressor reducer inlet end temperature, and unit maximizes effect according to demand, meets consumers' demand fast, and unfailing performance is high.
Below only just preferred embodiment of the present invention is described, but can not be interpreted as it is limiting the scope of the invention.The present invention is not only confined to above embodiment, and its concrete structure or shape allow to change.In a word, protection scope of the present invention should comprise those apparent conversion or alternative and remodeling to those skilled in the art.
Claims (10)
1. a frequency-conversion air-conditioning system, comprise main refrigerant loop, described main refrigerant is provided with compressor, four-way change-over valve, outdoor heat exchanger and indoor heat exchanger on loop, it is characterized in that, also comprise controller cooling loop, described controller cooling one end, loop is connected with the outlet of described outdoor heat exchanger, and the other end is connected with the air entry of described compressor reducer.
2. a kind of frequency-conversion air-conditioning system according to claim 1, it is characterized in that, described controller cooling is provided with for the frequency conversion radiator to controller heat radiation on loop, and described frequency conversion radiator comprises frequency-variable controller heat exchanger and the frequency-variable controller blower fan matching with described frequency-variable controller heat exchanger.
3. a kind of frequency-conversion air-conditioning system according to claim 1 and 2, is characterized in that, on described controller cooling loop, is also provided with for controlling the throttling arrangement in described controller cooling loop.
4. a kind of frequency-conversion air-conditioning system according to claim 3, is characterized in that, described throttling arrangement is electromagnetic throttle valve.
5. a kind of frequency-conversion air-conditioning system according to claim 2, it is characterized in that, described frequency-conversion air-conditioning system includes and detects the radiator sensor of frequency conversion radiator coil temperature and the radiator outlet sensor that detects the outlet temperature of described frequency conversion radiator.
6. a kind of frequency-conversion air-conditioning system according to claim 1, is characterized in that, is connected with first throttle valve between described outdoor heat exchanger and indoor heat exchanger, and the outlet of described first throttle valve is also connected with described controller cooling loop.
7. a kind of frequency-conversion air-conditioning system according to claim 6, it is characterized in that, between institute's controller cooling loop and described outdoor heat exchanger, be provided with the second check valve, between the outlet of described first throttle valve and described controller cooling loop, be provided with the 3rd check valve.
8. a kind of frequency-conversion air-conditioning system according to claim 6, is characterized in that, described first throttle valve two ends are connected with respectively the first filter and the second filter.
9. a kind of frequency-conversion air-conditioning system according to claim 1 or 5, it is characterized in that, described frequency-conversion air-conditioning system comprises the exhaust sensor that detects compressor reducer delivery temperature, detect the return-air sensor of compressor return air temperature, detect the outdoor sensor of outdoor environment temperature, the outdoor coil pipe used sensor of sensing chamber's external heat exchanger coil temperature, detect the indoor heat exchanger inlet sensor of indoor heat exchanger inlet temperature, the indoor heat exchanger coil pipe sensor of heat exchanger coils temperature in sensing chamber, the indoor heat exchanger outlet sensor of heat exchanger outlet temperature in the interior sensor of detection indoor environment temperature and sensing chamber.
10. a frequency-conversion air-conditioning system control method, is characterized in that, comprises frequency-conversion air-conditioning system claimed in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310510479.9A CN103574857B (en) | 2013-10-26 | 2013-10-26 | A kind of frequency-conversion air-conditioning system and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310510479.9A CN103574857B (en) | 2013-10-26 | 2013-10-26 | A kind of frequency-conversion air-conditioning system and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103574857A true CN103574857A (en) | 2014-02-12 |
| CN103574857B CN103574857B (en) | 2016-08-24 |
Family
ID=50047192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310510479.9A Active CN103574857B (en) | 2013-10-26 | 2013-10-26 | A kind of frequency-conversion air-conditioning system and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103574857B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482597A (en) * | 2014-12-08 | 2015-04-01 | 广东美的制冷设备有限公司 | Air conditioner |
| CN111271848A (en) * | 2019-07-17 | 2020-06-12 | 宁波奥克斯电气股份有限公司 | Control method of air conditioner and air conditioner thereof |
| CN113865137A (en) * | 2021-09-08 | 2021-12-31 | 美的集团武汉暖通设备有限公司 | Air source heat pump system and control method of air source heat pump |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63187042A (en) * | 1987-01-30 | 1988-08-02 | Toshiba Corp | Air conditioner |
| US4939910A (en) * | 1986-10-30 | 1990-07-10 | Tokyo Shibaura Electric Co | Air conditioner |
| CN101498469A (en) * | 2008-01-31 | 2009-08-05 | 乐金电子(天津)电器有限公司 | Outdoor unit of inverter air conditioner |
| CN201348396Y (en) * | 2009-01-19 | 2009-11-18 | 广东美的电器股份有限公司 | Frequency-change air conditioner |
| CN103162475A (en) * | 2013-03-22 | 2013-06-19 | 青岛海信日立空调系统有限公司 | Heat dissipation circulating system of air conditioner |
| CN103363719A (en) * | 2012-03-28 | 2013-10-23 | 三菱电机株式会社 | Refrigeration cycle apparatus and outdoor heat source unit |
| CN203605408U (en) * | 2013-10-26 | 2014-05-21 | 宁波奥克斯空调有限公司 | Variable frequency air conditioner system |
-
2013
- 2013-10-26 CN CN201310510479.9A patent/CN103574857B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4939910A (en) * | 1986-10-30 | 1990-07-10 | Tokyo Shibaura Electric Co | Air conditioner |
| JPS63187042A (en) * | 1987-01-30 | 1988-08-02 | Toshiba Corp | Air conditioner |
| CN101498469A (en) * | 2008-01-31 | 2009-08-05 | 乐金电子(天津)电器有限公司 | Outdoor unit of inverter air conditioner |
| CN201348396Y (en) * | 2009-01-19 | 2009-11-18 | 广东美的电器股份有限公司 | Frequency-change air conditioner |
| CN103363719A (en) * | 2012-03-28 | 2013-10-23 | 三菱电机株式会社 | Refrigeration cycle apparatus and outdoor heat source unit |
| CN103162475A (en) * | 2013-03-22 | 2013-06-19 | 青岛海信日立空调系统有限公司 | Heat dissipation circulating system of air conditioner |
| CN203605408U (en) * | 2013-10-26 | 2014-05-21 | 宁波奥克斯空调有限公司 | Variable frequency air conditioner system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482597A (en) * | 2014-12-08 | 2015-04-01 | 广东美的制冷设备有限公司 | Air conditioner |
| CN104482597B (en) * | 2014-12-08 | 2017-05-10 | 广东美的制冷设备有限公司 | Air conditioner |
| CN111271848A (en) * | 2019-07-17 | 2020-06-12 | 宁波奥克斯电气股份有限公司 | Control method of air conditioner and air conditioner thereof |
| CN111271848B (en) * | 2019-07-17 | 2021-07-06 | 宁波奥克斯电气股份有限公司 | Control method of air conditioner and air conditioner thereof |
| CN113865137A (en) * | 2021-09-08 | 2021-12-31 | 美的集团武汉暖通设备有限公司 | Air source heat pump system and control method of air source heat pump |
| WO2023035511A1 (en) * | 2021-09-08 | 2023-03-16 | 美的集团武汉暖通设备有限公司 | Air-source heat pump system and air-source heat pump control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103574857B (en) | 2016-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103574842A (en) | Control method of variable frequency air conditioning system | |
| CN106016811B (en) | Electric automobile air conditioner heat pump system with economizer | |
| CN103216908B (en) | Control method for outdoor fan in refrigeration of variable frequency multi-split air-conditioning unit | |
| CN107014014B (en) | Heat pipe natural cooling evaporation type condensation water chiller and control method thereof | |
| CN203605408U (en) | Variable frequency air conditioner system | |
| US20140345307A1 (en) | Energy efficient dehumidifying refrigeration system | |
| CN102147163B (en) | All-weather refrigerating plant and refrigerating mode control method thereof | |
| KR100821728B1 (en) | Air conditioning system | |
| CN104566852A (en) | Air conditioner and motor cooling method of air conditioner | |
| EP2891849A1 (en) | Heat reclaim for a multifunction heat pump and a multifunction air conditioner | |
| CN102345949A (en) | Refrigerant flow regulating system of multi-connected air-conditioning heat exchanger and regulating method thereof | |
| CN104729163A (en) | Air conditioning system and defrosting control method thereof | |
| KR101321979B1 (en) | Water Cooling type Air Conditioning Apparatus Using Cooling Water | |
| CN105683672A (en) | Air conditioning device | |
| CN106766365A (en) | Frequency conversion air-cooled heat pump water chiller-heater system and its control method and air-conditioning | |
| CN203908148U (en) | Air conditioning system | |
| CN203518359U (en) | Automobile heat pump air conditioner system | |
| CN104515319A (en) | Air conditioning system | |
| CN104236155A (en) | Air conditioning system with coolant supercooling, defrosting and heating functions and control method thereof | |
| CN104197444A (en) | Air conditioner and refrigerated container integrated machine and operation control method thereof | |
| CN205939465U (en) | Multi -split air conditioning system | |
| CN103574857A (en) | Variable frequency air conditioning system and control method thereof | |
| CN203478506U (en) | Cooling device for electronic control module of air conditioner outdoor unit | |
| CN101858667B (en) | Freezing device | |
| CN106871474A (en) | Air-cooled water-cooled combined air-conditioning system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Leng Ling Inventor after: Qian Hui Inventor after: Yang Lu Inventor after: Zhang Jianhui Inventor after: Ying Biye Inventor before: Qian Hui Inventor before: Yang Lu Inventor before: Zhang Jianhui Inventor before: Ying Biye |
|
| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180117 Address after: 315191 Yinzhou District Province, Ningbo City, Jiang Shan town on the village of summer ho Patentee after: AUX air conditioning Limited by Share Ltd Address before: 315191 Zhejiang city of Ningbo province Jiangshan town Yinzhou District Mingguang Road No. 1166 Patentee before: Ningbo AUX Group. |