CN110836457A - Control method for inhibiting frosting of air conditioner - Google Patents
Control method for inhibiting frosting of air conditioner Download PDFInfo
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- CN110836457A CN110836457A CN201810940037.0A CN201810940037A CN110836457A CN 110836457 A CN110836457 A CN 110836457A CN 201810940037 A CN201810940037 A CN 201810940037A CN 110836457 A CN110836457 A CN 110836457A
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- 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
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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- 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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- 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
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- 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
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
- F25B47/022—Defrosting cycles hot gas defrosting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2347/00—Details for preventing or removing deposits or corrosion
- F25B2347/02—Details of defrosting cycles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Thermal Sciences (AREA)
- Human Computer Interaction (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention belongs to the technical field of air conditioners, and particularly relates to a control method for inhibiting frosting of an air conditioner. In order to effectively inhibit the frosting speed of the air conditioner, the method comprises the following steps: detecting the temperature of an external coil of the air conditioner; comparing the temperature of the outer coil with the dew point temperature; if the temperature of the outer coil pipe minus the dew point temperature is more than or equal to a first set value, controlling the rotating speed of the outdoor fan to be a first rotating speed; and under the condition that the dew point temperature subtracted from the temperature of the outer coil is greater than or equal to a first set value, controlling the outdoor fan to reduce a first preset revolution when the temperature of the outer coil is reduced by a first preset temperature, wherein the first revolution is the revolution when the outdoor fan is in a high gear. The invention mainly utilizes the difference between the temperature of the external coil and the dew point temperature to control the rotating speed of the outdoor fan, and controls the outdoor fan to correspondingly reduce the revolution according to the reduction condition of the temperature of the external coil so as to delay the reduction speed of the temperature of the external coil, thereby further delaying the frosting speed of the air conditioner.
Description
Technical Field
The invention belongs to the technical field of air conditioners, and particularly relates to a control method for inhibiting frosting of an air conditioner.
Background
The air conditioner as a device capable of adjusting the indoor environment temperature has the working principle that: the indoor environment temperature is lowered or raised by the refrigerant switching between the circulation lines through the high pressure/low pressure/gas/liquid state, namely, the air conditioner is in the cooling or heating working condition from the perspective of the indoor unit. When the air conditioner heats the operation, if outdoor coil pipe temperature under certain humidity condition crosses lowly can lead to the condition of frosting, and outdoor coil pipe frosting can lead to outdoor heat exchanger's heat exchange efficiency to reduce, influences the heating effect of air conditioner, reduces indoor environment's travelling comfort, influences user experience. Therefore, in the situation that the air conditioner is in the heating working condition, the outdoor coil of the air conditioner needs to be defrosted timely and effectively.
In the prior art, the defrosting operation is usually performed after the air conditioner is frosted, so as to ensure the heating efficiency of the air conditioner. For example, in the process of heating by the air conditioner, whether the air conditioner frosts is judged by using the running time and the temperature of the outdoor coil, and the air conditioner enters a defrosting mode after the air conditioner is in a frosting state. As long as defrosting inevitably affects the indoor temperature, how to effectively suppress frosting becomes an urgent problem to be solved in the field.
The present invention has been made in view of the above circumstances.
Disclosure of Invention
Based on the above problems in the background art, in order to effectively suppress the frosting speed of the air conditioner, the present invention provides a frosting suppression control method for the air conditioner, which comprises the following steps: detecting the temperature of an external coil of the air conditioner; comparing the outer coil temperature to a dew point temperature; if the temperature of the outer coil pipe minus the dew point temperature is more than or equal to a first set value, controlling the rotating speed of the outdoor fan to be a first rotating speed; and under the condition that the dew point temperature subtracted from the temperature of the outer coil is greater than or equal to a first set value, controlling the outdoor fan to reduce a first preset revolution when the temperature of the outer coil is reduced by a first preset temperature, wherein the first revolution is the revolution when the outdoor fan is in a high gear.
In a preferred embodiment of the above air conditioner frost suppression control method, the method further includes: if the temperature of the external coil minus the dew point temperature is less than a first set value and greater than a second set value, controlling the rotating speed of the outdoor fan to be a second rotating speed; under the condition that the temperature of the external coil minus the dew point temperature is smaller than a first set value and larger than a second set value, controlling the outdoor fan to reduce a second preset revolution when the temperature of the external coil reduces a second preset temperature; wherein the second rotation speed is-50 rotations of the first rotation speed.
In a preferred embodiment of the above air conditioner frost suppression control method, the method further includes: if the temperature of the external coil minus the dew point temperature is less than a first set value and greater than a second set value, the temperature T of the external coil is obtained once every preset timen(ii) a When T isn－Tn-1When the rotating speed is less than or equal to a third set value, controlling the rotating speed of the outdoor fan to be a second rotating speed; and, atTn－Tn-1Under the condition that the temperature of the external coil pipe is less than or equal to a third set value, controlling the outdoor fan to reduce a second preset revolution when the temperature of the external coil pipe is reduced by a second preset temperature; wherein the second rotation speed is-50 rotations of the first rotation speed; t isn－1Is TnAnd n is a positive integer greater than 1 when the last detected temperature of the external coil is detected.
In a preferred embodiment of the above air conditioner frost suppression control method, the method further includes: if the temperature of the external coil pipe minus the dew point temperature is less than or equal to a second set value, controlling the rotating speed of the outdoor fan to be a third rotating speed; under the condition that the temperature of the external coil minus the dew point temperature is less than or equal to a second set value, controlling the outdoor fan to reduce a third preset revolution when the temperature of the external coil is reduced by a third preset temperature; wherein, the third rotational speed is the first rotational speed-200 revolutions.
In a preferred embodiment of the above air conditioner frost suppression control method, the method further includes: if the temperature of the external coil minus the dew point temperature is less than or equal to a second set value, the temperature T of the external coil is obtained once every preset timen(ii) a When T isn－Tn-1When the rotating speed is greater than the third set value, the rotating speed of the outdoor fan is controlled to be a third rotating speed; and, at Tn－Tn-1When the temperature of the external coil pipe is higher than a third preset value, controlling the outdoor fan to reduce a third preset revolution when the temperature of the external coil pipe is reduced by a third preset temperature; wherein, the third rotating speed is the first rotating speed of-200 revolutions; t isn－1Is TnAnd n is a positive integer greater than 1 when the last detected temperature of the external coil is detected.
In a preferred embodiment of the above air conditioner frost suppression control method, the first preset temperature is 0.5 ℃; and/or the first preset number of revolutions is 20 revolutions.
In a preferred embodiment of the above air conditioner frost suppression control method, the second preset temperature is 1 ℃; and/or the second preset number of revolutions is 10 revolutions.
In a preferred embodiment of the above air conditioner frost suppression control method, the third preset temperature is 0.5 ℃; and/or the third predetermined number of revolutions is 10 revolutions.
In a preferred embodiment of the above-described air conditioner frost formation suppression control method, the first set value is an arbitrary value within a range [ -1, 1], or the first set value is 0; and/or the second set point is any value within the interval [ -4, -2], or the second set point is-3; and/or the third set value is any value within the interval [0.1, 0.3], or the third set value is 0.2.
In the technical scheme of the invention, the difference between the temperature of the outer coil pipe and the dew point temperature is mainly utilized to control the rotating speed of the outdoor fan, the frosting possibility and the frosting speed of the outdoor unit can be more accurately judged, and on the premise of ensuring the heating operation efficiency of the air conditioner, the rotating speed of the outdoor fan is adaptively adjusted, and the frosting speed of the air conditioner is delayed as much as possible, so that the defrosting times are reduced, and the influence on the indoor temperature is reduced. And according to the reduction condition of the temperature of the external coil, the outdoor fan is controlled to correspondingly reduce the revolution so as to delay the reduction speed of the temperature of the external coil, thereby further delaying the frosting speed of the air conditioner.
Drawings
FIG. 1 is a main flow chart of a control method for suppressing frosting of an air conditioner according to the present invention;
fig. 2 is a flow chart of controlling the rotational speed of the outdoor fan according to the embodiment of the present invention.
Detailed Description
In order to make the embodiments, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the embodiments are some, but not all embodiments of the present invention. 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.
Referring to fig. 1, fig. 1 is a main flowchart of a frost formation suppression control method of an air conditioner according to the present invention. As shown in fig. 1, the air conditioner frosting inhibition control method of the present invention comprises the following steps: s110, detecting the temperature of an external coil of the air conditioner; s120, comparing the temperature of the outer coil with the dew point temperature; s130, if the temperature of the external coil minus the dew point temperature is greater than or equal to a first set value, controlling the rotating speed of the outdoor fan to be a first rotating speed; s140, under the condition that the dew point temperature subtracted from the temperature of the outer coil is larger than or equal to the first set value, the outdoor fan is controlled to reduce the first preset revolution when the temperature of the outer coil is reduced by the first preset temperature. The first rotating speed is the rotating speed of the outdoor fan when the outdoor fan is at a high gear. As can be understood by those skilled in the art, the rotation speed of the outdoor fan affects the heat exchange, i.e., the heat exchange efficiency, during the operation of the air conditioner, and the heat exchange efficiency affects the frosting condition of the outdoor unit; and because the temperature of the external coil can directly predict the frosting possibility of the outdoor unit, and the dew point temperature refers to the temperature of the air when the air is cooled to saturation under the condition that the water vapor content and the air pressure are not changed, the control of the rotating speed of the outdoor fan through the comparison of the temperature of the external coil and the dew point temperature can play a role in inhibiting frosting.
In step S130, since the temperature of the external coil is greater than the dew point temperature, the outdoor unit will not frost, and therefore the wind speed of the outdoor fan is controlled to be the high-grade wind speed, which can improve the heat exchange efficiency. In step S140, the frosting risk of the outdoor unit is increased along with the decrease of the temperature of the external coil, so that the rotation speed of the outdoor fan is reduced according to the decrease of the temperature of the external coil to slow down the decrease of the temperature of the external coil, and the temperature of the external coil is maintained to be higher than the dew point temperature as much as possible. As an example, in step S140, the first preset temperature may be 0.5 ℃, the first preset number of revolutions may be 20 revolutions, and those skilled in the art may flexibly and reasonably set other preset temperatures and preset numbers of revolutions according to the actual situation of the air conditioner.
As a specific example, referring to fig. 2, fig. 2 is a control flowchart of the rotation speed of the outdoor fan according to the embodiment of the present invention. As shown in fig. 2, after the temperature of the external coil of the air conditioner is detected, step S210 is first executed to compare the temperature Toil of the external coil with the dew-point temperature Te; and if the Toil-Te is larger than or equal to the first set value, executing the step S220 and controlling the rotating speed of the outdoor fan to be the first rotating speed. Wherein, the first set value can be 0, or can be any value in the interval [ -1, 1 ]; the first rotating speed is the rotating speed when the outdoor fan is at the highest gear, and the outdoor fan is at a high-grade wind speed. As can be understood by those skilled in the art, when Toil-Te is more than or equal to 0, namely the temperature of the outer coil pipe is more than the dew point temperature, the outdoor unit does not frost, so that the air speed of the outdoor fan is controlled to be high-grade air speed, and the heat exchange efficiency can be improved.
After step S220, step S221 is carried out, and when the temperature of the external coil pipe is reduced by 0.5 ℃ every time when the Toil is not less than Te, the outdoor fan is controlled to reduce 20 revolutions, so that the temperature of the outdoor coil pipe is maintained to be higher than the dew point temperature as much as possible, and the function of delaying frosting is achieved.
And if the second set value < Toil-Te < the first set value, executing step S230, and controlling the rotating speed of the outdoor fan to be a second rotating speed. Wherein, the second set value can be-3, or any value in the interval [ -4, -2 ]; the second speed is-50 revolutions of the first speed. It will be understood by those skilled in the art that when-3 < Toil-Te < 0, indicating that the outside coil temperature is below the dew point temperature, but not too much below the dew point temperature, then the outdoor unit begins to frost, but at a slow rate. Therefore, the frosting is delayed by reducing the rotating speed of the outdoor fan, and the frosting speed is slow, so that the outdoor fan can be reduced to the second rotating speed, and the heat exchange efficiency of the air conditioner is ensured as much as possible on the premise of delaying the frosting.
After step S230, step S231 is performed, and in the case that-3 < Toil-Te < 0, the outdoor fan is controlled to reduce the second preset number of revolutions every time the temperature of the outdoor coil is reduced by the second preset temperature, so as to delay the speed of reducing the temperature of the outdoor coil. As an example, the second preset temperature may be 1 ℃, the second preset rotation number may be 10 rotations, and those skilled in the art may flexibly and reasonably set other preset temperatures and preset rotation numbers according to the actual situation of the air conditioner. Therefore, the rotating speed of the outdoor fan is reduced according to the reduction of the temperature of the outer coil pipe so as to reduce the reduction speed of the temperature of the outer coil pipe, and the function of delaying frosting is achieved.
And if the Toil-Te is less than or equal to the second set value, executing the step S240, and controlling the rotating speed of the outdoor fan to be a third rotating speed. Wherein, the third rotational speed is the first rotational speed-200 revolutions. It will be understood by those skilled in the art that when Toil-Te ≦ -3, it means that the outdoor unit frosts faster when the outside coil temperature is less than the dew point temperature and more below the dew point temperature, and thus, the frosting is further delayed by reducing the speed of the outdoor fan to the third rotational speed.
After the step S240, the step S241 is entered, and in case that Toil-Te is less than or equal to-3, the outdoor fan is controlled to reduce the third preset revolution number every time the temperature of the external coil pipe is reduced by the third preset temperature, so as to delay the reduction speed of the temperature of the external coil pipe. As an example, the third preset temperature may be 0.5 ℃, the third preset revolution may be 10 revolutions, and those skilled in the art may flexibly and reasonably set other preset temperatures and preset revolutions according to the actual situation of the air conditioner. Therefore, the rotating speed of the outdoor fan is reduced according to the reduction of the temperature of the outer coil pipe so as to reduce the reduction speed of the temperature of the outer coil pipe, and the function of delaying frosting is achieved.
As another example of the present invention, if-3 < Toil-Te < 0, the temperature T of the external coil is obtained every predetermined timen(ii) a When T isn－Tn-1And when the rotating speed is less than or equal to the third set value, controlling the rotating speed of the outdoor fan to be the second rotating speed. Wherein the second rotation speed is-50 rotations of the first rotation speed. Further, at Tn－Tn-1Under the condition that the temperature of the external coil pipe is less than or equal to a third set value, controlling the outdoor fan to reduce 20 revolutions every time the temperature of the external coil pipe is reduced by 1 ℃; wherein, Tn－1Is TnAnd n is a positive integer greater than 1 when the last detected temperature of the external coil is detected.
If the Toil-Te is less than or equal to-3, the temperature T of the external coil pipe is acquired every preset timen(ii) a When T isn－Tn-1And when the rotating speed is larger than the third set value, the rotating speed of the outdoor fan is controlled to be the third rotating speed. Wherein, the third rotational speed is the first rotational speed-200 revolutions. Further, at Tn－Tn-1If the temperature of the external coil pipe is reduced by 0.5 ℃ under the condition that the temperature is higher than a third set value, controlling the outdoor fan to reduce 10 revolutions; wherein, Tn－1Is TnAnd n is a positive integer greater than 1 when the last detected temperature of the external coil is detected.
In this embodiment, the third setting value may be 0.2, or may be any value within the interval [0.1, 0.3 ]; the preset time may be 1 minute. As can be understood by those skilled in the art, in the present embodiment, based on the comparison result between the temperature of the outer coil and the dew point temperature, the difference between the temperatures of the two adjacent outer coils is further determined, and the rotating speed of the outdoor fan is controlled according to the difference, so as to achieve the purpose of more accurately controlling the rotating speed of the outdoor fan. And further based on the difference value of the temperatures of the two adjacent outer coil pipes, the reduced revolution of the outdoor fan is controlled according to the variation range of the temperatures of the outer coil pipes, and the frosting speed of the air conditioner is delayed on the premise of ensuring the heat exchange efficiency of the air conditioner as much as possible.
In summary, the present invention mainly uses the difference between the temperature of the external coil and the dew point temperature to control the rotation speed of the outdoor fan, so as to more accurately determine the frosting possibility and the frosting speed of the outdoor unit, and adaptively adjust the rotation speed of the outdoor fan on the premise of ensuring the heating operation efficiency of the air conditioner, so as to delay the frosting speed of the air conditioner as much as possible, thereby reducing the number of times of defrosting and reducing the influence on the indoor temperature. And according to the reduction condition of the temperature of the external coil, the outdoor fan is controlled to correspondingly reduce the revolution so as to delay the reduction speed of the temperature of the external coil, thereby further delaying the frosting speed of the air conditioner.
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 (9)
1. An air conditioner frost suppression control method, comprising the steps of:
detecting the temperature of an external coil of the air conditioner;
comparing the outer coil temperature to a dew point temperature;
if the temperature of the outer coil pipe minus the dew point temperature is more than or equal to a first set value, controlling the rotating speed of the outdoor fan to be a first rotating speed;
and, under the condition that the temperature of the external coil minus the dew point temperature is more than or equal to a first set value, the outdoor fan is controlled to reduce a first preset revolution when the temperature of the external coil reduces a first preset temperature,
the first rotating speed is the rotating speed of the outdoor fan when the outdoor fan is at a high gear.
2. The air conditioner frost suppression control method according to claim 1, further comprising:
if the temperature of the external coil minus the dew point temperature is less than a first set value and greater than a second set value, controlling the rotating speed of the outdoor fan to be a second rotating speed;
under the condition that the temperature of the external coil minus the dew point temperature is smaller than a first set value and larger than a second set value, controlling the outdoor fan to reduce a second preset revolution when the temperature of the external coil reduces a second preset temperature;
wherein the second rotation speed is-50 rotations of the first rotation speed.
3. The air conditioner frost suppression control method according to claim 1, further comprising:
if the temperature of the external coil minus the dew point temperature is less than a first set value and greater than a second set value, the temperature T of the external coil is obtained once every preset timen；
When T isn－Tn-1When the rotating speed is less than or equal to a third set value, controlling the rotating speed of the outdoor fan to be a second rotating speed;
and, at Tn－Tn-1Under the condition that the temperature of the external coil pipe is less than or equal to a third set value, controlling the outdoor fan to reduce a second preset revolution when the temperature of the external coil pipe is reduced by a second preset temperature;
wherein the second rotation speed is-50 rotations of the first rotation speed; t isn－1Is TnAnd n is a positive integer greater than 1 when the last detected temperature of the external coil is detected.
4. The air conditioner frost suppression control method according to claim 1, further comprising:
if the temperature of the external coil pipe minus the dew point temperature is less than or equal to a second set value, controlling the rotating speed of the outdoor fan to be a third rotating speed;
under the condition that the temperature of the external coil minus the dew point temperature is less than or equal to a second set value, controlling the outdoor fan to reduce a third preset revolution when the temperature of the external coil is reduced by a third preset temperature;
wherein, the third rotational speed is the first rotational speed-200 revolutions.
5. The air conditioner frost suppression control method according to claim 1, further comprising:
if the temperature of the external coil minus the dew point temperature is less than or equal to a second set value, the temperature T of the external coil is obtained once every preset timen；
When T isn－Tn-1When the rotating speed is greater than the third set value, the rotating speed of the outdoor fan is controlled to be a third rotating speed;
and, at Tn－Tn-1When the temperature of the external coil pipe is higher than a third preset value, controlling the outdoor fan to reduce a third preset revolution when the temperature of the external coil pipe is reduced by a third preset temperature;
wherein, the third rotating speed is the first rotating speed of-200 revolutions; t isn－1Is TnAnd n is a positive integer greater than 1 when the last detected temperature of the external coil is detected.
6. The air conditioner frost suppression control method according to claim 1, wherein the first preset temperature is 0.5 ℃; and/or
The first preset number of revolutions is 20 revolutions.
7. The air conditioner frost suppression control method according to claim 2 or 3, wherein the second preset temperature is 1 ℃; and/or
The second preset number of revolutions is 10 revolutions.
8. The air conditioner frost suppression control method according to claim 4 or 5, wherein the third preset temperature is 0.5 ℃; and/or
The third preset number of revolutions is 10 revolutions.
9. The air conditioner frost suppression control method according to any of claims 2 to 5, wherein the first set value is any value within an interval [ -1, 1], or the first set value is 0; and/or
The second set value is any value within the interval [ -4, -2], or the second set value is-3; and/or
The third set value is an arbitrary value within the interval [0.1, 0.3], or the third set value is 0.2.
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| CN201810940037.0A CN110836457A (en) | 2018-08-17 | 2018-08-17 | Control method for inhibiting frosting of air conditioner |
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| CN201810940037.0A CN110836457A (en) | 2018-08-17 | 2018-08-17 | Control method for inhibiting frosting of air conditioner |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669838A (en) * | 2021-08-12 | 2021-11-19 | 珠海格力电器股份有限公司 | Air conditioner self-cleaning method and device, computer equipment and storage medium |
| CN115355598A (en) * | 2022-08-18 | 2022-11-18 | 宁波奥克斯电气股份有限公司 | Defrosting control method of air conditioner and air conditioner |
| CN115654659A (en) * | 2022-11-04 | 2023-01-31 | 青岛海尔空调器有限总公司 | Control method and control device of air conditioner and air conditioner |
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| CN115654659A (en) * | 2022-11-04 | 2023-01-31 | 青岛海尔空调器有限总公司 | Control method and control device of air conditioner and air conditioner |
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Application publication date: 20200225 |