CN110017582B - Defrosting control method for air conditioner - Google Patents
Defrosting control method for air conditioner Download PDFInfo
- Publication number
- CN110017582B CN110017582B CN201910152741.4A CN201910152741A CN110017582B CN 110017582 B CN110017582 B CN 110017582B CN 201910152741 A CN201910152741 A CN 201910152741A CN 110017582 B CN110017582 B CN 110017582B
- Authority
- CN
- China
- Prior art keywords
- air conditioner
- defrosting
- temperature
- defrosting mode
- control method
- 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
Classifications
-
- 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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention belongs to the technical field of air conditioners and aims to solve the problems that the temperature in a room is reduced when the existing air conditioner performs refrigeration and defrosting, and the service life of a four-way valve is shortened due to frequent reversing of the four-way valve. Therefore, the invention provides a defrosting control method for an air conditioner, which comprises the following steps: when the air conditioner is in heating operation, whether the defrosting condition is met or not is judged, the outdoor environment temperature is obtained, and the air conditioner is selectively enabled to enter a hot water defrosting mode or a refrigerating defrosting mode according to the judgment result of the defrosting condition and the outdoor environment temperature. According to the invention, when the defrosting condition is met, a hot water defrosting mode or a refrigeration defrosting mode is selected to defrost according to the outdoor environment temperature, but the defrosting mode can not be only adopted every time, so that the frequency of the air conditioner entering the refrigeration defrosting mode can be reduced, the heating time of the air conditioner can be prolonged, the frequent reversing of the four-way valve can be avoided, and the service life of the four-way valve can be prolonged.
Description
Technical Field
The invention belongs to the technical field of air conditioners, and particularly provides a defrosting control method for an air conditioner.
Background
An air conditioner is an apparatus capable of cooling/heating a room. When the air conditioner is in heating operation, water vapor in the air is condensed into frost crystals on the surface of the outdoor heat exchanger, and the frost crystals become thicker and thicker along with the passage of time, so that the air convection heat exchange of the outdoor heat exchanger is blocked, the heating effect of the air conditioner is further influenced, and at the moment, the outdoor heat exchanger needs to be defrosted.
The defrosting mode of the existing air conditioner is mainly refrigeration defrosting, namely, the refrigerant is reversed through a four-way valve, the refrigerant flows reversely, and the high-temperature refrigerant directly enters an outdoor heat exchanger to be forcedly defrosted. However, the air conditioner needs the four-way valve to change direction when entering the refrigeration and defrosting mode from the heating mode, the service life of the four-way valve can be reduced due to frequent change of the four-way valve, and in the refrigeration and defrosting process, a fan of an indoor unit is in a stop state, so that the indoor temperature is reduced, and the use experience of a user is influenced.
Therefore, there is a need in the art for a defrost control method for an air conditioner to solve the above-mentioned problems.
Disclosure of Invention
In order to solve the above problems in the prior art, that is, to solve the problems that the conventional air conditioner causes a drop in the indoor temperature during the cooling and defrosting operation and the service life of the four-way valve is reduced due to frequent reversing of the four-way valve, the present invention provides a defrosting control method for an air conditioner, wherein the defrosting control method comprises: when the air conditioner is in heating operation, judging whether a defrosting condition is met and acquiring the outdoor environment temperature; and selectively enabling the air conditioner to enter a hot water defrosting mode or a refrigerating defrosting mode according to the judgment result of the defrosting condition and the outdoor environment temperature.
In a preferred embodiment of the above-described defrosting control method, the step of selectively causing the air conditioner to enter a hot water defrosting mode or a cooling defrosting mode according to the determination result of the defrosting condition and the outdoor ambient temperature includes: and if the defrosting condition is met and the outdoor environment temperature is greater than a first preset value, enabling the air conditioner to enter a hot water defrosting mode.
In a preferred embodiment of the above-mentioned defrosting control method, the step of selectively causing the air conditioner to enter a hot water defrosting mode or a cooling defrosting mode according to the determination result of the defrosting condition and the outdoor ambient temperature further includes: and if the defrosting condition is met and the outdoor environment temperature is less than or equal to the first preset value, enabling the air conditioner to enter a refrigeration and defrosting mode.
In a preferred embodiment of the above-mentioned defrosting control method, the step of selectively causing the air conditioner to enter a hot water defrosting mode or a cooling defrosting mode according to the determination result of the defrosting condition and the outdoor ambient temperature further includes: and if the defrosting condition is not met, not enabling the air conditioner to enter a hot water defrosting mode or a refrigerating defrosting mode.
In a preferred technical solution of the above defrosting control method, the first preset value is 0 ℃.
In a preferred technical solution of the above-mentioned defrosting control method, the defrosting condition is that a temperature of a coil of an outdoor unit of the air conditioner is less than a second preset value.
In a preferred embodiment of the above-described defrosting control method, the defrosting control method further includes: acquiring the temperature of a coil of an outdoor unit of the air conditioner in the process of executing a hot water defrosting mode by the air conditioner; and if the temperature of the coil of the outdoor unit is greater than a third preset value, enabling the air conditioner to exit the hot water defrosting mode.
In a preferred embodiment of the above-described defrosting control method, the defrosting control method further includes: acquiring the temperature of a coil of an outdoor unit of the air conditioner in the process of executing a refrigeration and defrosting mode by the air conditioner; and if the temperature of the coil of the outdoor unit is greater than a fourth preset value, enabling the air conditioner to exit from a refrigeration and defrosting mode.
In a preferred embodiment of the above-described defrosting control method, the defrosting control method further includes: acquiring the temperature of a coil of an outdoor unit of the air conditioner and the running time of the air conditioner; and if the temperature of the coil of the outdoor unit is less than a fifth preset value and the running time of the air conditioner reaches a first preset time, the air conditioner is forced to enter a refrigeration and defrosting mode.
In a preferred embodiment of the above-described defrosting control method, after the step of "forcibly causing the air conditioner to enter the cooling and defrosting mode", the defrosting control method includes: continuously acquiring the temperature of the coil of the outdoor unit; and if the temperature of the coil of the outdoor unit is greater than a sixth preset value and lasts for a second preset time, the air conditioner is made to exit the refrigeration and defrosting mode.
It can be understood by those skilled in the art that, in the preferred embodiment of the present invention, when the air conditioner is in heating operation, it is determined whether the defrosting condition is satisfied and the outdoor environment temperature is obtained, and the air conditioner is selectively put into the hot water defrosting mode or the cooling defrosting mode according to the determination result of the defrosting condition and the outdoor environment temperature. Through the arrangement, a hot water defrosting mode is added to the air conditioner, when the defrosting condition is met, the air conditioner can select to defrost the outdoor heat exchanger by adopting a hot water defrosting mode or a refrigerating defrosting mode according to the outdoor environment temperature, rather than defrosting by only adopting the refrigerating defrosting mode at each time, so that the frequency of the air conditioner entering the refrigerating defrosting mode can be reduced, the heating time of the air conditioner can be prolonged, frequent reversing of the four-way valve can be avoided, and the service life of the four-way valve can be prolonged. Specifically, if the defrosting condition is met and the outdoor environment temperature is greater than a first preset value, the air conditioner is enabled to enter a hot water defrosting mode; if the defrosting condition is met and the outdoor environment temperature is less than or equal to a first preset value, the air conditioner is enabled to enter a refrigeration and defrosting mode; if the defrosting condition is not satisfied, the air conditioner is not put into the hot water defrosting mode or the cooling defrosting mode. When the defrosting condition is met, namely when the outdoor unit heat exchanger needs defrosting, whether the outdoor environment temperature is greater than a first preset value or not is judged, if the outdoor environment temperature is greater than the first preset value, the outdoor unit heat exchanger can be defrosted in a hot water defrosting mode without defrosting the outdoor unit heat exchanger in a refrigerating defrosting mode, so that the condition that the indoor temperature is reduced due to the fact that the air conditioner enters a refrigerating defrosting mode can be avoided, and the service life of the reversing valve is also prevented from being reduced due to frequent reversing of the reversing valve.
Further, the defrost control method further comprises: and acquiring the coil temperature of an outdoor unit of the air conditioner and the running time of the air conditioner, and if the coil temperature of the outdoor unit is less than a fifth preset value and the running time of the air conditioner reaches a first preset time, forcing the air conditioner to enter a refrigeration and defrosting mode. After the air conditioner runs for a long time, the heat exchanger of the outdoor unit is completely and greatly defrosted once to eliminate the defrosting residues before, so that the heating effect of the air conditioner is prevented from being influenced due to excessive accumulated defrosting residues.
Drawings
FIG. 1 is a flow chart of the defrost control method of the present invention;
fig. 2 is a flow chart of an embodiment of the defrost control method of the present invention.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
The prior air conditioner pointed out based on the background art can lead to the indoor temperature to drop when the refrigeration defrosting to the frequent switching-over of four-way valve can reduce the problem of four-way valve life. The invention provides a defrosting control method for an air conditioner, which aims to reduce the times of entering refrigeration and defrosting of the air conditioner, thereby prolonging the heating time of the air conditioner, avoiding frequent reversing of a four-way valve and prolonging the service life of the four-way valve.
Specifically, as shown in fig. 1, the defrosting control method of the present invention includes: when the air conditioner is in heating operation, judging whether a defrosting condition is met and acquiring the outdoor environment temperature; and selectively enabling the air conditioner to enter a hot water defrosting mode or a refrigerating defrosting mode according to the judgment result of the defrosting condition and the outdoor environment temperature. The hot water defrosting refers to defrosting the heat exchanger of the outdoor unit by using hot water, and the air conditioner can continue to keep heating operation, so that the indoor temperature is not reduced; or a water storage tank is arranged indoors, hot water is stored in the water storage tank, a spraying device is arranged above the outdoor heat exchanger and connected with a water pump arranged on the water storage tank, and when the air conditioner enters a hot water defrosting mode, the water pump is started through a controller, so that hot water in the water storage tank is sprayed onto the outdoor heat exchanger through the spraying device to defrost the outdoor heat exchanger; and the like, such modifications and variations to the particular embodiments for defrosting hot water should be considered within the scope of the present invention without departing from the spirit and scope of the present invention. In addition, it should be noted that the refrigeration and defrosting refers to reversing through a four-way valve, the refrigerant flows reversely, and the high-temperature refrigerant directly enters the outdoor heat exchanger to be forcedly defrosted.
Preferably, as shown in fig. 2, the step of selectively enabling the air conditioner to enter the hot water defrosting mode or the cooling defrosting mode according to the judgment result of the defrosting condition and the outdoor environment temperature specifically includes: if the defrosting condition is met and the outdoor environment temperature is greater than the first preset value, the air conditioner enters a hot water defrosting mode; if the defrosting condition is met and the outdoor environment temperature is less than or equal to a first preset value, the air conditioner is enabled to enter a refrigeration and defrosting mode; if the defrosting condition is not satisfied, the air conditioner is not put into the hot water defrosting mode or the cooling defrosting mode. When the defrosting condition is met, namely when the outdoor unit heat exchanger needs to be defrosted, firstly judging whether the outdoor environment temperature is greater than a first preset value, if the outdoor environment temperature is greater than the first preset value, enabling the air conditioner to enter a hot water defrosting mode, namely, defrosting the outdoor unit heat exchanger by using hot water; if the outdoor environment temperature is less than or equal to the first preset value, the air conditioner is enabled to enter a refrigeration and defrosting mode; of course, if the defrosting condition is not satisfied, that is, the outdoor heat exchanger does not need to be defrosted, the air conditioner maintains the current operation state and neither hot water defrosting nor cooling defrosting is performed. In a preferred embodiment, the first preset value is 0 ℃, that is, if the defrosting condition is met and the outdoor environment temperature is greater than 0 ℃, the air conditioner is enabled to enter a hot water defrosting mode; and if the defrosting condition is met but the outdoor environment temperature is less than or equal to 0 ℃, enabling the air conditioner to enter a refrigeration defrosting mode, and if the defrosting condition is not met, not enabling the air conditioner to enter a hot water defrosting mode or a refrigeration defrosting mode. Through the arrangement, a hot water defrosting mode is added to the air conditioner, when the defrosting condition is met, the air conditioner can select to adopt a hot water defrosting mode or a refrigerating defrosting mode to defrost the heat exchanger of the outdoor unit according to the outdoor environment temperature, when the outdoor environment temperature is higher than 0 ℃, the outdoor temperature is not too low, the defrosting effect is not influenced by the icing of water, the hot water defrosting mode can be adopted to defrost the heat exchanger of the outdoor unit, the refrigerating defrosting mode is not required to defrost the heat exchanger of the outdoor unit, the reduction of the indoor temperature caused by the fact that the air conditioner enters the refrigerating defrosting mode can be avoided, the frequent reversing of the four-way valve can be avoided, and the service life of the four-way valve can be prolonged; and when the outdoor temperature is less than or equal to 0 ℃, the outdoor temperature is relatively low, and in order to avoid the influence of water freezing on the defrosting effect, the heat exchanger of the outdoor unit is defrosted by adopting a refrigeration defrosting mode. Of course, the first preset value is not limited to 0 degree celsius in the above example, as is well known, the freezing point temperature is related to the pressure, the pressure is increased, and the freezing point temperature is correspondingly decreased, and in a specific application, a person skilled in the art may flexibly set a specific value of the first preset value according to an actual situation, for example, the first preset value may also be set to minus 1 degree celsius or 1 degree celsius, so long as the dividing point determined by the first preset value can avoid the defrosting effect from being affected by the freezing of water.
Preferably, the defrosting condition is that a coil temperature of an outdoor unit of the air conditioner is less than a second preset value. That is, when the temperature of the coil of the outdoor unit is less than the second preset value, it indicates that the heat exchanger of the outdoor unit needs to be defrosted, and the specific defrosting mode needs to be selected according to the outdoor environment temperature, when the outdoor environment temperature is greater than the first preset value (the first preset value can be set to 0 degrees celsius), the hot water defrosting mode is adopted to defrost, and when the outdoor environment temperature is less than or equal to the first preset value (the first preset value can be set to 0 degrees celsius), the refrigeration defrosting mode is adopted to defrost. It should be noted that, a person skilled in the art may flexibly set a specific numerical value of the second preset value in practical application, as long as whether the outdoor unit heat exchanger needs defrosting can be determined by the critical point determined by the second preset value. Of course, in practical applications, whether the outdoor heat exchanger needs defrosting or not may be determined by the coil temperature of the indoor unit, or whether the outdoor heat exchanger needs defrosting or not may be determined by combining the coil temperature of the outdoor unit and the coil temperature of the indoor unit, and the like, and the adjustment and change of the specific determination manner of the defrosting condition do not depart from the principle and scope of the present invention, and should be limited within the protection scope of the present invention.
Preferably, the defrost control method further comprises: and in the process that the air conditioner executes the hot water defrosting mode, acquiring the temperature of a coil of an outdoor unit of the air conditioner, and if the temperature of the coil of the outdoor unit is greater than a third preset value, enabling the air conditioner to exit the hot water defrosting mode. When the temperature of the coil of the outdoor unit is higher than the third preset value, it is indicated that frost crystals on the heat exchanger of the outdoor unit are completely removed or the heating effect of the air conditioner is not influenced temporarily by residual frost crystals on the heat exchanger of the outdoor unit, and at the moment, the air conditioner can exit from a hot water defrosting mode to stop defrosting operation. It should be noted that, a person skilled in the art may flexibly set a specific numerical value of the third preset value in practical application, as long as whether the outdoor unit heat exchanger needs to be defrosted continuously can be determined by the critical point determined by the third preset value. In practical applications, it is also possible to determine whether the outdoor heat exchanger needs to be defrosted continuously or not by using the coil temperature of the indoor unit, or determine whether the outdoor heat exchanger needs to be defrosted continuously by using the combination of the coil temperature of the outdoor unit and the coil temperature of the indoor unit, and the like.
Preferably, the defrost control method further comprises: and in the process that the air conditioner executes the refrigeration defrosting mode, acquiring the temperature of a coil of an outdoor unit of the air conditioner, and if the temperature of the coil of the outdoor unit is greater than a fourth preset value, enabling the air conditioner to exit the refrigeration defrosting mode. When the temperature of the coil of the outdoor unit is higher than the fourth preset value, the situation that frost crystals on the heat exchanger of the outdoor unit are removed completely or the heating effect of the air conditioner is not influenced temporarily by the residual frost crystals on the heat exchanger of the outdoor unit is indicated, and at the moment, the air conditioner can exit from a refrigeration and defrosting mode and stop defrosting operation. It should be noted that, a person skilled in the art may flexibly set a specific numerical value of the fourth preset value in practical application, as long as whether the outdoor unit heat exchanger needs to be defrosted continuously can be determined by the critical point determined by the fourth preset value. In practical applications, it is also possible to determine whether the outdoor heat exchanger needs to be defrosted continuously or not by using the coil temperature of the indoor unit, or determine whether the outdoor heat exchanger needs to be defrosted continuously by using the combination of the coil temperature of the outdoor unit and the coil temperature of the indoor unit, and the like.
Preferably, the defrost control method further comprises: and acquiring the coil temperature of an outdoor unit of the air conditioner and the running time of the air conditioner, and if the coil temperature of the outdoor unit is less than a fifth preset value and the running time of the air conditioner reaches a first preset time, forcing the air conditioner to enter a refrigeration and defrosting mode. After the air conditioner runs for a long time, the heat exchanger of the outdoor unit is completely and greatly defrosted once to eliminate the defrosting residues before, so that the heating effect of the air conditioner is prevented from being influenced due to excessive accumulated defrosting residues. The first preset time can be set by a person skilled in the art through an experimental manner, or can be set through an empirical manner, as long as the air conditioner can be forced to enter the refrigeration and defrosting mode through the demarcation point determined by the first preset time. It should be noted that, a person skilled in the art may flexibly set a specific numerical value of the fifth preset value in practical application, as long as whether the outdoor unit heat exchanger needs defrosting can be determined by the critical point determined by the fifth preset value.
Preferably, after the step of 'forcing the air conditioner into the cooling defrost mode', the defrost control method includes: and continuously acquiring the temperature of the coil of the outdoor unit, and if the temperature of the coil of the outdoor unit is greater than a sixth preset value and lasts for a second preset time, enabling the air conditioner to exit from the refrigeration and defrosting mode. That is, when the temperature of the coil of the outdoor unit is greater than the sixth preset value and lasts for the second preset time, it is indicated that the previous defrosting residue has been eliminated, and the "large defrosting" operation is completed. The second preset time can be set by a person skilled in the art through an experimental manner, or can be set through an empirical manner, as long as the demarcation point determined by the second preset time can determine whether the defrosting residue is completely removed. It should be noted that, a person skilled in the art may flexibly set a specific numerical value of the sixth preset value in practical application, as long as whether the outdoor unit heat exchanger needs to be defrosted continuously can be determined by the critical point determined by the sixth preset value.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (8)
1. A defrost control method for an air conditioner, the defrost control method comprising:
when the air conditioner is in heating operation, judging whether a defrosting condition is met and acquiring the outdoor environment temperature;
selectively enabling the air conditioner to enter a hot water defrosting mode or a refrigerating defrosting mode according to the judgment result of the defrosting condition and the outdoor environment temperature;
the step of selectively causing the air conditioner to enter a hot water defrosting mode or a cooling defrosting mode according to the judgment result of the defrosting condition and the outdoor environment temperature includes:
if the defrosting condition is met and the outdoor environment temperature is greater than a first preset value, enabling the air conditioner to enter a hot water defrosting mode;
and if the defrosting condition is met and the outdoor environment temperature is less than or equal to the first preset value, enabling the air conditioner to enter a refrigeration and defrosting mode.
2. The defrost control method of claim 1, wherein the step of selectively causing the air conditioner to enter a hot water defrost mode or a cooling defrost mode according to the determination of the defrost condition and the outdoor ambient temperature further comprises:
and if the defrosting condition is not met, not enabling the air conditioner to enter a hot water defrosting mode or a refrigerating defrosting mode.
3. The defrost control method of claim 1, wherein the first preset value is 0 degrees celsius.
4. The defrost control method of claim 1, wherein the defrost condition is a coil temperature of an outdoor unit of the air conditioner being less than a second preset value.
5. The defrost control method of claim 1, further comprising:
acquiring the temperature of a coil of an outdoor unit of the air conditioner in the process of executing a hot water defrosting mode by the air conditioner;
and if the temperature of the coil of the outdoor unit is greater than a third preset value, enabling the air conditioner to exit the hot water defrosting mode.
6. The defrost control method of claim 1, further comprising:
acquiring the temperature of a coil of an outdoor unit of the air conditioner in the process of executing a refrigeration and defrosting mode by the air conditioner;
and if the temperature of the coil of the outdoor unit is greater than a fourth preset value, enabling the air conditioner to exit from a refrigeration and defrosting mode.
7. The defrost control method of any one of claims 1-6, further comprising:
acquiring the temperature of a coil of an outdoor unit of the air conditioner and the running time of the air conditioner;
and if the temperature of the coil of the outdoor unit is less than a fifth preset value and the running time of the air conditioner reaches a first preset time, the air conditioner is forced to enter a refrigeration and defrosting mode.
8. The defrost control method of claim 7, wherein after the step of forcing the air conditioner into a cooling defrost mode, the defrost control method comprises:
continuously acquiring the temperature of the coil of the outdoor unit;
and if the temperature of the coil of the outdoor unit is greater than a sixth preset value and lasts for a second preset time, the air conditioner is made to exit the refrigeration and defrosting mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910152741.4A CN110017582B (en) | 2019-02-28 | 2019-02-28 | Defrosting control method for air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910152741.4A CN110017582B (en) | 2019-02-28 | 2019-02-28 | Defrosting control method for air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110017582A CN110017582A (en) | 2019-07-16 |
| CN110017582B true CN110017582B (en) | 2021-12-24 |
Family
ID=67189160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910152741.4A Active CN110017582B (en) | 2019-02-28 | 2019-02-28 | Defrosting control method for air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110017582B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111397097B (en) * | 2020-04-03 | 2022-12-27 | 青岛海尔空调电子有限公司 | Defrosting control method for air conditioner and air conditioner |
| CN111994253B (en) * | 2020-08-27 | 2022-07-01 | 广船国际有限公司 | Air conditioner ventilation system |
| CN113465125B (en) * | 2021-06-17 | 2023-05-26 | 青岛海尔空调电子有限公司 | Defrosting control method, computer readable storage medium and control device for air conditioner |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010085004A (en) * | 2008-09-30 | 2010-04-15 | Tokyo Electric Power Co Inc:The | Heat pump water heater and method for defrosting the heat pump water heater |
| CN105509314A (en) * | 2014-09-22 | 2016-04-20 | 珠海格力电器股份有限公司 | Defrosting method and system for air-energy water heater |
| JP2017067318A (en) * | 2015-09-28 | 2017-04-06 | パナソニックＩｐマネジメント株式会社 | Air conditioner |
| CN106705302A (en) * | 2017-01-10 | 2017-05-24 | 美的集团武汉制冷设备有限公司 | Air conditioner, defrosting control method and defrosting control system |
-
2019
- 2019-02-28 CN CN201910152741.4A patent/CN110017582B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010085004A (en) * | 2008-09-30 | 2010-04-15 | Tokyo Electric Power Co Inc:The | Heat pump water heater and method for defrosting the heat pump water heater |
| CN105509314A (en) * | 2014-09-22 | 2016-04-20 | 珠海格力电器股份有限公司 | Defrosting method and system for air-energy water heater |
| JP2017067318A (en) * | 2015-09-28 | 2017-04-06 | パナソニックＩｐマネジメント株式会社 | Air conditioner |
| CN106705302A (en) * | 2017-01-10 | 2017-05-24 | 美的集团武汉制冷设备有限公司 | Air conditioner, defrosting control method and defrosting control system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110017582A (en) | 2019-07-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107166639B (en) | Air conditioner defrosting control method and control device and air conditioner | |
| EP3734178B1 (en) | Control method for air conditioner | |
| CN110017582B (en) | Defrosting control method for air conditioner | |
| US10345022B2 (en) | Air-conditioning apparatus | |
| CN109210696B (en) | Control method for anti-freezing protection of air conditioner | |
| CN111750486B (en) | Control method and device for preventing indoor unit from freezing and air conditioner | |
| CN108758973B (en) | Defrosting control method for air conditioner | |
| CN109210699B (en) | Control method for anti-freezing protection of air conditioner | |
| EP3492837B1 (en) | Refrigeration cycle device | |
| CN109539479B (en) | Air conditioner defrosting method and device and air conditioner | |
| JP6266456B2 (en) | Air conditioner | |
| CN108692423B (en) | Defrosting control method for air conditioner | |
| CN110057030B (en) | Self-cleaning humidification control method for air conditioner | |
| CN111033152B (en) | Refrigerating machine | |
| CN114811826B (en) | Control method and device of air conditioning system, air conditioning system and storage medium | |
| CN115031351B (en) | Air conditioner and defrosting control method thereof | |
| CN108592294B (en) | Defrosting control method for air conditioner | |
| CN108413560B (en) | Self-cleaning system of air conditioner indoor unit and control method thereof | |
| CN105180539A (en) | Anti-freezing control method and system for heat pump unit | |
| CN109751714B (en) | Air conditioner defrosting control method and air conditioner | |
| CN110470000B (en) | Control method and device for defrosting of air conditioner and air conditioner | |
| CN108775741B (en) | Defrosting control method for air conditioner | |
| CN115560457A (en) | Control method and control device of air conditioner and air conditioner | |
| US20090240374A1 (en) | Method of controlling air conditioner | |
| CN107642924A (en) | Prevent the method and air conditioner of evaporator icing frost |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant after: QINGDAO HAIER AIR-CONDITIONING ELECTRONIC Co.,Ltd. Applicant after: Haier Zhijia Co., Ltd Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER AIR-CONDITIONING ELECTRONIC Co.,Ltd. Applicant before: Haier Limited by Share Ltd, Qingdao |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |