CN114294783B - Air conditioner control method and device, air conditioner and storage medium - Google Patents
Air conditioner control method and device, air conditioner and storage medium Download PDFInfo
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- CN114294783B CN114294783B CN202111617073.1A CN202111617073A CN114294783B CN 114294783 B CN114294783 B CN 114294783B CN 202111617073 A CN202111617073 A CN 202111617073A CN 114294783 B CN114294783 B CN 114294783B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The invention discloses an air conditioner control method, an air conditioner control device, an air conditioner and a storage medium, wherein the method comprises the following steps: determining that the air conditioner meets a defrosting condition; the air conditioner is controlled to enter a defrosting mode, so that one or more of an indoor fan, an outdoor fan, a compressor, an indoor transverse air deflector, a four-way reversing valve and an explosion-proof electric heating device of the air conditioner are controlled according to the indoor coil temperature and the outdoor coil temperature which are detected in real time, the temperature of the refrigerant before and after flowing through the throttling part is maintained above the pour point temperature of lubricating oil, the temperature of the refrigerant before and after the throttling part is maintained above the pour point temperature of the lubricating oil in the defrosting process of the air conditioner and after the defrosting is finished, the viscosity of the lubricating oil is effectively reduced, and floccules are prevented from accumulating at the throttling part, so that the phenomenon of oil blockage is avoided.
Description
Technical Field
The present invention relates to the field of air conditioning technologies, and in particular, to an air conditioning control method, an air conditioning control device, an air conditioner, and a storage medium.
Background
The GWP (Global Warming Potential ) of R290 (propane) refrigerant is very low, and the thermodynamic property of the refrigerant is similar to that of R22, so that the refrigerant is an ideal substitute refrigerant for R22. However, because the pour point temperature of the lubricating oil used by the R290 is higher, when the air conditioner using the R290 heats and defrosts in a low-temperature environment, the throttling device easily generates floccules, the floccules can accumulate at the throttling position to cause oil blockage, and the oil blockage can cause that the refrigerant and the lubricating oil cannot participate in circulation, so that the compressor runs at idle and generates heat, and finally, a motor is burnt out and a system is crashed.
The means adopted by the prior art comprise that an external heat source (such as the heat of a compressor or an electric control box) is introduced to heat the throttling part so as to improve the temperature of the throttling part, but the heat generated by the way is limited, so that the heating effect of the throttling device is not great, and the heating effect and the user experience are also influenced.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Accordingly, an object of the present invention is to provide an air conditioner control method, an air conditioner control device, an air conditioner, and a storage medium.
The invention provides an air conditioner control method, which comprises the following steps:
determining that the air conditioner meets a defrosting condition;
and controlling the air conditioner to enter a defrosting mode so as to control one or more of an indoor fan, an outdoor fan, a compressor, an indoor transverse air deflector, a four-way reversing valve and an explosion-proof electric heating device of the air conditioner according to the indoor coil temperature and the outdoor coil temperature which are detected in real time, so that the temperature of the refrigerant flowing through the front and the rear of the throttling part is maintained above the pour point temperature of the lubricating oil.
In addition, the air conditioner control method according to the embodiment of the invention may further have the following additional technical features:
further, one or more of an indoor fan, an outdoor fan, a compressor, an indoor lateral air deflector, a four-way reversing valve, and an explosion-proof electric heater of the air conditioner is controlled according to the detected indoor coil temperature and outdoor coil temperature, so that the temperature of the refrigerant flowing through the throttling part is maintained above the pour point temperature of the lubricating oil, and the method comprises the following steps:
controlling the four-way reversing valve to be switched to a refrigerating state, and controlling the indoor fan and the outdoor fan to stop;
when the temperature of the indoor coil pipe is determined to be less than or equal to a first preset temperature, the indoor fan is controlled to be started and run in a first preset wind speed gear, the explosion-proof electric heating device is controlled to be started, the indoor transverse wind deflector is controlled to be positioned at a first preset position, and the air conditioner is controlled to exit the defrosting mode until the temperature of the outdoor coil pipe is greater than or equal to a second preset temperature.
Further, after controlling the air conditioner to exit the defrosting mode, the method further comprises:
and controlling the compressor to stop, controlling the indoor fan and the anti-explosion electric heating device to be continuously started until the temperature of the indoor coil pipe is higher than or equal to a third preset temperature, controlling the indoor fan and the anti-explosion electric heating device to be closed, controlling the four-way reversing valve to be switched to a heating state after delaying a first preset time, and controlling the compressor to be started so as to control the air conditioner to enter a heating mode, wherein the third preset temperature is higher than the first preset temperature.
Further, after controlling the air conditioner to enter a heating mode, the method further comprises:
when the temperature of the outdoor coil is determined to be less than or equal to a fourth preset temperature, controlling the indoor fan to operate in a first preset wind speed gear, controlling the explosion-proof electric heating device to be started, controlling the indoor transverse air guide plate to be positioned at the first preset position, controlling the explosion-proof electric heating device to be closed until the temperature of the outdoor coil is greater than or equal to a fifth preset temperature, controlling the indoor fan to operate in a second preset wind speed gear, controlling the indoor transverse air guide plate to be positioned at the second preset position, and controlling the air conditioner to enter a heating mode, wherein the fourth preset temperature is less than the fifth preset temperature, and the fifth preset temperature is less than the second preset temperature.
Further, the controlling the indoor transverse wind deflector to be at a first preset position includes:
and controlling the indoor transverse air deflector to incline upwards relative to the horizontal direction so as to reach a preset cold air prevention position.
Further, the wind speed corresponding to the second preset wind speed gear is higher than the wind speed corresponding to the first preset wind speed gear.
Further, the determining that the air conditioner satisfies the defrosting condition includes:
when the air conditioner is in heating operation, the temperature of the outdoor coil is smaller than or equal to a sixth preset temperature, and the accumulated time of the heating operation of the air conditioner reaches a second preset time, the air conditioner is determined to meet a defrosting condition, and the sixth preset temperature is larger than the fifth preset temperature and smaller than the second preset temperature.
According to the air conditioner control method provided by the embodiment of the invention, one or more of an indoor fan, an outdoor fan, a compressor, an indoor transverse air deflector, a four-way reversing valve and an explosion-proof electric heating device of the air conditioner are controlled through the temperature of the indoor coil pipe and the temperature of the outdoor coil pipe which are detected in real time, so that the temperature of the refrigerant before and after flowing through the throttling part is maintained above the pour point temperature of lubricating oil, the temperature of the refrigerant before and after the throttling part is maintained above the pour point temperature of the lubricating oil in the defrosting process of the air conditioner and after defrosting is finished, the viscosity of the lubricating oil is effectively reduced, and floccules are prevented from accumulating at the throttling part, thereby avoiding the occurrence of oil blockage phenomenon.
In order to solve the above-mentioned problems, the present invention also provides a control device of an air conditioner, which includes:
the determining module is used for determining that the air conditioner meets the defrosting condition;
and the control module is used for controlling the air conditioner to enter a defrosting mode so as to control one or more of an indoor fan, an outdoor fan, a compressor, an indoor transverse air deflector, a four-way reversing valve and an explosion-proof electric heating device of the air conditioner according to the indoor coil temperature and the outdoor coil temperature detected in real time, so that the temperature of the refrigerant flowing through the throttling part is maintained above the pour point temperature of the lubricating oil.
According to the air conditioner control device provided by the embodiment of the invention, one or more of the indoor fan, the outdoor fan, the compressor, the indoor transverse air deflector, the four-way reversing valve and the explosion-proof electric heating device of the air conditioner are controlled through the indoor coil temperature and the outdoor coil temperature which are detected in real time, so that the temperature of the refrigerant before and after flowing through the throttling part is maintained above the pour point temperature of the lubricating oil, the temperature of the refrigerant before and after the throttling part is maintained above the pour point temperature of the lubricating oil in the defrosting process of the air conditioner and after the defrosting is finished, the viscosity of the lubricating oil is effectively reduced, and floccules are prevented from accumulating at the throttling part, thereby avoiding the occurrence of oil blockage phenomenon.
In view of the above problems, the present invention also proposes an air conditioner comprising:
the air conditioner control device according to the above embodiment; or alternatively, the process may be performed,
the air conditioner control method according to any one of the embodiments described above is implemented when the air conditioner control program is executed by the processor.
According to the air conditioner disclosed by the embodiment of the invention, one or more of the indoor fan, the outdoor fan, the compressor, the indoor transverse air deflector, the four-way reversing valve and the explosion-proof electric heating device of the air conditioner are controlled through the temperature of the indoor coil pipe and the temperature of the outdoor coil pipe which are detected in real time, so that the temperature of the refrigerant before and after flowing through the throttling part is maintained above the pour point temperature of lubricating oil, the temperature of the refrigerant before and after the throttling part is maintained above the pour point temperature of the lubricating oil in the defrosting process of the air conditioner and after the defrosting is finished, the viscosity of the lubricating oil is effectively reduced, and floccules are prevented from accumulating at the throttling part, thereby preventing oil blockage.
In view of the foregoing, the present invention further provides a computer storage medium having an air conditioning control program stored thereon, where the air conditioning control program, when executed by a processor, implements the air conditioning control method according to any of the foregoing embodiments.
According to the computer storage medium, when the stored air conditioner control program is executed by the processor, one or more of an indoor fan, an outdoor fan, a compressor, an indoor transverse air deflector, a four-way reversing valve and an explosion-proof electric heating device of the air conditioner are controlled through the indoor coil temperature and the outdoor coil temperature which are detected in real time, so that the temperature of the refrigerant before and after flowing through the throttling part is maintained above the pour point temperature of the lubricating oil, the temperature of the refrigerant before and after the throttling part is maintained above the pour point temperature of the lubricating oil in the defrosting process of the air conditioner and after the defrosting is finished, the viscosity of the lubricating oil is effectively reduced, and floccules are prevented from accumulating at the throttling part, thereby avoiding oil blockage.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a schematic structural view of an air conditioner according to an embodiment of the present invention;
fig. 2 is a flowchart of an air conditioner control method according to an embodiment of the present invention;
fig. 3 is a flowchart of an air conditioner control method according to another embodiment of the present invention;
fig. 4 is a schematic structural view of a control device of an air conditioner according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below, by way of example with reference to the accompanying drawings.
An air conditioner control method, an air conditioner control device, an air conditioner, and a storage medium according to embodiments of the present invention are described below with reference to fig. 1 to 4.
The structure of the lower air conditioner will be first described with reference to fig. 1. As shown in fig. 1, the air conditioner includes: the air conditioner comprises a compressor 1, a four-way reversing valve 2, an outdoor heat exchanger 3, an outdoor fan 4, a throttling part 5, an indoor heat exchanger 6, an indoor fan 7 and an explosion-proof electric heating device 8. The exhaust port of the compressor 1 is connected with a first port of the four-way reversing valve 2, a second port of the four-way reversing valve 2 is connected with one end of the outdoor heat exchanger 3, the other end of the outdoor heat exchanger 3 is connected with one end of the throttling component 5, the other end of the throttling component 5 is connected with one end of the indoor heat exchanger 6, the other end of the indoor heat exchanger 6 is connected with a third port of the four-way reversing valve 2, and a fourth port of the four-way reversing valve 2 is connected with the air suction port of the compressor 1, so that a circulation loop is formed, and a refrigerant circulates in the circulation loop. Wherein the outdoor fan 4 is arranged opposite to the outdoor heat exchanger 3 to blow air to the outdoor heat exchanger 3 when starting; the indoor fan 7 is arranged opposite to the indoor heat exchanger 6 to blow air to the indoor heat exchanger 6 when starting; an explosion-proof electric heating device 8 is provided opposite to the indoor heat exchanger 6 to heat air around the indoor heat exchanger 6 at the time of starting.
Fig. 1 is a flowchart of an air conditioner control method according to an embodiment of the present invention. As shown in fig. 2, an air conditioner control method includes the steps of:
and S1, determining that the air conditioner meets the defrosting condition.
And S2, controlling the air conditioner to enter a defrosting mode so as to control one or more of an indoor fan 7, an outdoor fan 4, a compressor 1, an indoor transverse air deflector, a four-way reversing valve 2 and an explosion-proof electric heating device 8 of the air conditioner according to the indoor coil temperature and the outdoor coil temperature which are detected in real time, so that the temperature of the refrigerant before and after flowing through the throttling part 5 is maintained above the pour point temperature of the lubricating oil.
Specifically, in the defrosting process or the defrosting end of the air conditioner, one or more of the indoor fan 7, the outdoor fan 4, the compressor 1, the indoor transverse air deflector, the four-way reversing valve 2 and the explosion-proof electric heating device 8 of the air conditioner can be controlled according to the indoor coil temperature and the outdoor coil temperature detected in real time, so that the refrigerant flowing through the indoor heat exchanger 6 exchanges heat with hot air, the temperature and the pressure of the refrigerant are improved, the temperature of the refrigerant is kept higher than the pour point temperature of lubricating oil when the refrigerant passes through the throttling part 5, the lubricating oil can not block the throttling part due to floccules, and the occurrence of oil blockage is avoided.
In one embodiment of the present invention, one or more of the indoor fan 7, the outdoor fan 4, the compressor 1, the indoor lateral air deflector, the four-way reversing valve 2, the explosion-proof electric heater 8 of the air conditioner is controlled according to the detected indoor coil temperature and outdoor coil temperature so as to maintain the temperature of the refrigerant before and after passing through the throttling part 5 above the pour point temperature of the lubricating oil, including: the four-way reversing valve 2 is controlled to be switched to a refrigerating state, and the indoor fan 7 and the outdoor fan 4 are controlled to stop; when the temperature of the indoor coil pipe is determined to be less than or equal to a first preset temperature, the indoor fan 7 is controlled to be started and operated at a first preset wind speed gear, the explosion-proof electric heating device 8 is controlled to be started, the indoor transverse air deflector is controlled to be positioned at a first preset position, and the air conditioner is controlled to exit the defrosting mode until the temperature of the outdoor coil pipe is determined to be greater than or equal to a second preset temperature.
Specifically, as shown in fig. 1, after the air conditioner enters a defrosting mode, the four-way reversing valve 2 is controlled to switch to a refrigerating state, and the indoor fan 7 and the outdoor fan 4 are controlled to be stopped simultaneously, so that high-temperature and high-pressure gas discharged from the exhaust port of the compressor 1 passes through the four-way reversing valve 2, enters the outdoor condenser 3 to perform heat release defrosting, and supercooled liquid refrigerant from the condenser 3 enters the indoor heat exchanger 6 through a connecting pipeline after being throttled by the throttling component 5. Since the indoor fan 7 is stopped just before, the refrigerant hardly exchanges heat in the indoor heat exchanger 6, but the refrigerant temperature is further lowered due to the existence of the pipe resistance. When the temperature of the indoor coil pipe monitored by the air conditioner is less than or equal to a first preset temperature T01, such as minus 20 ℃ to minus 30 ℃, the indoor fan 7 is controlled to be started and operated at a first preset wind speed gear, such as a breeze gear, at the moment, the indoor transverse air plate is placed at a first preset position, such as a cold wind prevention position, and when the indoor transverse air plate is placed at the position, the blown air flow faces to the ceiling and cannot be blown to users in a room; meanwhile, the explosion-proof electric heating device 8 arranged at the upper part of the indoor heat exchanger 6 is controlled to start to operate, so that indoor air is blown out from an air outlet after passing through the explosion-proof electric heating device 8 and the indoor heat exchanger 6 under the drive of the indoor fan 7. Because the indoor transverse air plate is always positioned at the cold air prevention position, the cold air can be prevented from directly blowing the user in the room, and therefore the comfortable experience of the user is improved. In addition, the refrigerant has a strong heat absorption effect under the action of indoor warm air flow, the temperature and the pressure of the refrigerant are rapidly increased, so that the temperature of the refrigerant before and after the throttling part 5 is maintained above the pour point temperature of lubricating oil, the viscosity of the lubricating oil is reduced, and the phenomenon of oil blockage caused by accumulation of floccules at the throttling part is avoided; the refrigerant after heat exchange flows into the compressor 1 from the air suction port of the compressor 1 through the connecting pipe and the four-way reversing valve 2, so as to finish a defrosting cycle. When the temperature T1 of the outdoor coil is more than or equal to a second preset temperature T02, for example, 10-20 ℃, the air conditioner judges that defrosting is finished, and the air conditioner is controlled to exit the defrosting mode.
In one embodiment of the present invention, after controlling the air conditioner to exit the defrosting mode, the method further comprises: the compressor 1 is controlled to stop, the indoor fan 7 and the explosion-proof electric heating device 8 are controlled to be continuously started until the temperature of the indoor coil pipe is higher than or equal to a third preset temperature, the indoor fan 7 and the explosion-proof electric heating device 8 are controlled to be closed, after a first preset time is delayed, the four-way reversing valve 2 is controlled to be switched to a heating state, and the compressor 1 is controlled to be started so as to control an air conditioner to enter a heating mode, and the third preset temperature is higher than the first preset temperature.
Specifically, after the air conditioner is controlled to exit the defrosting mode, the compressor 1 is controlled to stop, the indoor fan 7 and the anti-explosion electric heating device 8 are controlled to be continuously started, if the temperature T2 of the indoor coil is not less than a third preset temperature T03, for example, 25-30 ℃, the indoor fan 7 and the anti-explosion electric heating device 8 are controlled to be closed, the four-way reversing valve 2 is controlled to be switched to a heating state after being delayed for T seconds, and the compressor 1 is controlled to be started so as to control the air conditioner to perform heating operation. According to the method, after the air conditioner exits the defrosting mode, namely after defrosting is finished, the temperature and the pressure of the refrigerant can be quickly increased, so that the temperature of the refrigerant before and after the throttling part 5 is maintained above the pour point temperature of the lubricating oil, the viscosity of the lubricating oil is reduced, and the phenomenon of oil blockage caused by accumulation of floccules at the throttling part is avoided.
In one embodiment of the present invention, after controlling the air conditioner to enter the heating mode, the method further comprises: when the temperature of the outdoor coil is determined to be less than or equal to the fourth preset temperature, the indoor fan 7 is controlled to operate at a first preset wind speed gear, the explosion-proof electric heating device 8 is controlled to be started, the indoor transverse air deflector is controlled to be positioned at a first preset position, the explosion-proof electric heating device 8 is controlled to be closed until the temperature of the outdoor coil is greater than or equal to the fifth preset temperature, the indoor fan 7 is controlled to operate at a second preset wind speed gear, the indoor transverse air deflector is controlled to be positioned at a second preset position, so that the air conditioner is controlled to enter a heating mode, the fourth preset temperature is less than the fifth preset temperature, and the fifth preset temperature is less than the second preset temperature.
Specifically, in the process of air conditioning and heating operation, when the temperature T1 of the outdoor coil is less than or equal to a fourth preset temperature T04, for example, the temperature is minus 10 ℃ to minus 15 ℃, the indoor fan 7 and the explosion-proof electric heating device 8 are controlled to start to operate, the indoor fan 7 is controlled to operate at a first preset wind speed gear, and the indoor transverse air plate is controlled to be arranged at a first preset position, namely, the cold air prevention position. At this time, the indoor air is driven by the indoor fan 7 to pass through the explosion-proof electric heating device 8 and then pass through the indoor heat exchanger 6 to exchange heat with the refrigerant flowing through the indoor heat exchanger, the temperature and the pressure of the refrigerant can be rapidly increased, so that the temperature of the refrigerant before and after the throttling component 5 is maintained above the pour point temperature of lubricating oil, the viscosity of the lubricating oil is reduced, and the phenomenon of oil blockage caused by accumulation of floccules at the throttling component is avoided. When the temperature T1 of the outdoor coil is more than or equal to a fifth preset temperature T05, for example, the temperature is minus 2 ℃ to 0 ℃, the indoor fan is controlled to operate at a second preset wind speed gear, for example, the indoor fan 7 is controlled to operate at a set gear according to a cold wind prevention program in the controller, the explosion-proof electric heating device 8 is controlled to be closed, and the indoor transverse air guide plate is controlled to be at a second preset position, for example, the position of the transverse air guide plate set by a user through a remote controller or an APP, so that the air conditioner enters a conventional heating operation mode.
In one embodiment of the invention, the control room transverse air deflector is in a first preset position, comprising: the indoor transverse air deflector is controlled to incline upwards relative to the horizontal direction so as to reach the preset cold air prevention position, so that the air flow blown out by the air conditioner faces the ceiling, the cold air is prevented from directly blowing the user in the room, and the comfort experience of the user is improved.
In one embodiment of the present invention, the wind speed corresponding to the second preset wind speed gear is higher than the wind speed corresponding to the first preset wind speed gear. Specifically, the second preset wind speed gear corresponds to a wind speed gear set by a user through a remote controller or an APP, for example, a high wind speed gear, a medium wind speed gear, a low wind speed gear, and the like.
In one embodiment of the present invention, determining that an air conditioner satisfies a defrost condition includes: when the air conditioner is in heating operation, the temperature of the outdoor coil is smaller than or equal to a sixth preset temperature, and the accumulated time of the heating operation of the air conditioner reaches a second preset time, the air conditioner is determined to meet the defrosting condition, and the sixth preset temperature is larger than the fifth preset temperature and smaller than the second preset temperature. In a specific example, the sixth preset temperature is denoted as T06, and the value thereof ranges from-5 ℃ to-10 ℃, and the second preset time ranges from 40 min to 50min, for example.
As a specific embodiment, a hollow-air conditioning control method of the specific embodiment is exemplarily described below with reference to fig. 3, so as to better understand an air conditioning control method of an embodiment of the present invention.
In a specific embodiment, as shown in fig. 3, when the air conditioner is turned on and is in heating operation, the coil temperature T1 of the outdoor heat exchanger 3 and the coil temperature T2 of the indoor heat exchanger 6 are detected, and when the air conditioner heating cumulative operation time T is greater than or equal to n, for example, 40-50 min, and T1 is less than or equal to a sixth preset temperature, that is, T06 is between-5 ℃ and-10 ℃, it is determined that the air conditioner satisfies the defrosting condition, and the air conditioner is controlled to enter the defrosting mode, otherwise, the defrosting condition is not satisfied.
In a specific embodiment, after the air conditioner enters the defrosting mode, the four-way reversing valve 2 is controlled to switch to a refrigerating state, the indoor fan 7 and the outdoor fan 4 are controlled to stop simultaneously, when the indoor coil temperature T2 is determined to be smaller than or equal to a first preset temperature, namely T01, the indoor fan 7 is controlled to be started and operated at a first preset wind speed gear, such as a breeze gear, the explosion-proof electric heating device 8 is controlled to be started, the indoor transverse air deflector is controlled to be positioned at a first preset position, such as a cold air prevention position, until the outdoor coil temperature T1 is greater than or equal to a second preset temperature, namely T02, and the air conditioner is controlled to exit the defrosting mode.
In a specific embodiment, after the air conditioner is controlled to exit the defrosting mode, the compressor 1 is controlled to stop, the indoor fan 7 and the anti-explosion electric heating device 8 are controlled to be continuously turned on until the indoor coil temperature T2 is greater than or equal to a third preset temperature, namely T03, the indoor fan 7 and the anti-explosion electric heating device 8 are controlled to be turned off, and after a second preset time, namely T seconds, the four-way reversing valve 2 is controlled to be switched to a heating state, and the compressor 1 is controlled to be started, so that the air conditioner is controlled to enter the heating mode, and the third preset temperature is greater than the first preset temperature.
In a specific embodiment, after controlling the air conditioner to enter the heating mode, the method further includes: and when the temperature T1 of the outdoor coil is determined to be smaller than or equal to a fourth preset temperature, namely T04, controlling the indoor fan 7 to operate in a first preset wind speed gear, controlling the explosion-proof electric heating device 8 to be started and controlling the indoor transverse air deflector to be positioned at a first preset position until the temperature of the outdoor coil is larger than or equal to a fifth preset temperature, namely T05, controlling the explosion-proof electric heating device 8 to be closed, controlling the indoor fan 7 to operate in a second preset wind speed gear and controlling the indoor transverse air deflector to be positioned at a second preset position so as to control the air conditioner to enter a heating mode, wherein the fourth preset temperature is smaller than the fifth preset temperature, and the fifth preset temperature is smaller than the second preset temperature.
According to the air conditioner control method provided by the embodiment of the invention, one or more of the indoor fan 7, the outdoor fan 4, the compressor 1, the indoor transverse air deflector, the four-way reversing valve 2 and the explosion-proof electric heating device 8 of the air conditioner are controlled through the indoor coil temperature and the outdoor coil temperature which are detected in real time, so that the temperature of the refrigerant before and after flowing through the throttling part 5 is maintained above the pour point temperature of the lubricating oil, the temperature of the refrigerant before and after the throttling part 5 is maintained above the pour point temperature of the lubricating oil in the defrosting process of the air conditioner and after the defrosting is finished, the viscosity of the lubricating oil is effectively reduced, and floccules are prevented from accumulating at the throttling part, thereby avoiding the occurrence of oil blockage phenomenon.
Further embodiments of the present invention further disclose a control device for an air conditioner, fig. 4 is a schematic structural diagram of the control device for an air conditioner according to an embodiment of the present invention, as shown in fig. 4, the device 10 includes:
a determining module 11 for determining that the air conditioner satisfies a defrosting condition;
and a control module 12 for controlling the air conditioner to enter a defrosting mode so as to control one or more of an indoor fan, an outdoor fan, a compressor, an indoor transverse air deflector, a four-way reversing valve and an explosion-proof electric heating device of the air conditioner according to the indoor coil temperature and the outdoor coil temperature detected in real time, so that the temperature of the refrigerant flowing through the front and the rear of the throttling part is maintained above the pour point temperature of the lubricating oil.
In one embodiment of the present invention, the control module 12 controls one or more of an indoor fan, an outdoor fan, a compressor, an indoor lateral air deflector, a four-way reversing valve, an explosion-proof electric heater of the air conditioner based on the sensed indoor coil temperature and the sensed outdoor coil temperature to maintain the temperature of the refrigerant flowing through the throttling element before and after the throttling element above the pour point temperature of the lubricating oil, comprising: the four-way reversing valve is controlled to be switched to a refrigerating state, and the indoor fan and the outdoor fan are controlled to stop; when the temperature of the indoor coil is determined to be less than or equal to a first preset temperature, controlling the indoor fan to be started and run in a first preset wind speed gear, controlling the explosion-proof electric heating device to be started, controlling the indoor transverse air deflector to be positioned at a first preset position, and controlling the air conditioner to exit the defrosting mode until the temperature of the outdoor coil is greater than or equal to a second preset temperature.
In one embodiment of the present invention, the control module 12 further includes, after controlling the air conditioner to exit the defrost mode: and controlling the compressor to stop, controlling the indoor fan and the anti-explosion electric heating device to be continuously started until the temperature of the indoor coil pipe is higher than or equal to a third preset temperature, controlling the indoor fan and the anti-explosion electric heating device to be closed, controlling the four-way reversing valve to be switched to a heating state after delaying a first preset time, and controlling the compressor to be started so as to control the air conditioner to enter a heating mode, wherein the third preset temperature is higher than the first preset temperature.
In one embodiment of the present invention, the control module 12 further includes, after controlling the air conditioner to enter the heating mode: when the temperature of the outdoor coil is determined to be less than or equal to a fourth preset temperature, the indoor fan is controlled to operate in a first preset wind speed gear, the explosion-proof electric heating device is controlled to be started, the indoor transverse air deflector is controlled to be positioned at a first preset position until the temperature of the outdoor coil is greater than or equal to a fifth preset temperature, the explosion-proof electric heating device is controlled to be closed, the indoor fan is controlled to operate in a second preset wind speed gear, the indoor transverse air deflector is controlled to be positioned at a second preset position, so that the air conditioner is controlled to enter a heating mode, the fourth preset temperature is less than the fifth preset temperature, and the fifth preset temperature is less than the second preset temperature.
In one embodiment of the present invention, the control module 12 controls the indoor transverse air deflection to be in a first preset position, comprising: the indoor transverse air deflector is controlled to incline upwards relative to the horizontal direction so as to reach the preset cold air prevention position.
In one embodiment of the present invention, the wind speed corresponding to the second preset wind speed gear is higher than the wind speed corresponding to the first preset wind speed gear.
In one embodiment of the present invention, the determining module 11 determines that the air conditioner satisfies the defrosting condition, including: when the air conditioner is in heating operation, the temperature of the outdoor coil is smaller than or equal to a sixth preset temperature, and the accumulated time of the heating operation of the air conditioner reaches a second preset time, the air conditioner is determined to meet the defrosting condition, and the sixth preset temperature is larger than the fifth preset temperature and smaller than the second preset temperature.
It should be noted that, when the position of the mobile terminal is adjusted, the specific implementation manner of the control device 10 for an air conditioner according to the embodiment of the present invention is similar to that of the control method for an air conditioner according to the embodiment of the present invention, and please refer to the description of the method section specifically, so that redundancy is reduced and no further description is given here.
According to the air conditioner control device provided by the embodiment of the invention, one or more of the indoor fan 7, the outdoor fan 4, the compressor 1, the indoor transverse air deflector, the four-way reversing valve 2 and the explosion-proof electric heating device 8 of the air conditioner are controlled through the indoor coil temperature and the outdoor coil temperature which are detected in real time, so that the temperature of the refrigerant before and after flowing through the throttling part 5 is maintained above the pour point temperature of the lubricating oil, the temperature of the refrigerant before and after the throttling part 5 is maintained above the pour point temperature of the lubricating oil in the defrosting process of the air conditioner and after the defrosting is finished, the viscosity of the lubricating oil is effectively reduced, and floccules are prevented from accumulating at the throttling part, thereby avoiding the occurrence of oil blockage phenomenon.
The further embodiment of the invention also discloses an air conditioner.
In some embodiments, the air conditioner includes: the air conditioner control device 10 according to any one of the above embodiments.
In some embodiments, the air conditioner includes: the air conditioner control method according to any one of the embodiments described above is implemented when the air conditioner control program is executed by the processor.
According to the air conditioner disclosed by the embodiment of the invention, one or more of the indoor fan 7, the outdoor fan 4, the compressor 1, the indoor transverse air deflector, the four-way reversing valve 2 and the explosion-proof electric heating device 8 of the air conditioner are controlled through the indoor coil temperature and the outdoor coil temperature which are detected in real time, so that the temperature of the refrigerant before and after flowing through the throttling part 5 is maintained above the pour point temperature of the lubricating oil, the temperature of the refrigerant before and after the throttling part 5 is maintained above the pour point temperature of the lubricating oil in the defrosting process of the air conditioner and after the defrosting is finished, the viscosity of the lubricating oil is effectively reduced, and floccules are prevented from accumulating at the throttling part, so that the phenomenon of oil blockage is avoided.
Further embodiments of the present invention also disclose a computer storage medium having an air conditioner control program stored thereon, which when executed by a processor implements the air conditioner control method according to any of the above embodiments.
According to the computer storage medium of the embodiment of the invention, when the air conditioner control program stored on the computer storage medium is executed by the processor, one or more of the indoor fan 7, the outdoor fan 4, the compressor 1, the indoor transverse air deflector, the four-way reversing valve 2 and the explosion-proof electric heating device 8 of the air conditioner are controlled through the indoor coil temperature and the outdoor coil temperature which are detected in real time, so that the temperature of the refrigerant before and after flowing through the throttling part 5 is maintained above the pour point temperature of the lubricating oil, the temperature of the refrigerant before and after the throttling part 5 is maintained above the pour point temperature of the lubricating oil in the defrosting process of the air conditioner and after the defrosting is finished, the viscosity of the lubricating oil is effectively reduced, and floccules are prevented from accumulating at the throttling part, thereby avoiding the occurrence of oil blockage phenomenon.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. An air conditioner control method, characterized in that the method comprises:
determining that the air conditioner meets a defrosting condition;
controlling the air conditioner to enter a defrosting mode so as to control one or more of an indoor fan, an outdoor fan, a compressor, an indoor transverse air deflector, a four-way reversing valve and an explosion-proof electric heating device of the air conditioner according to the temperature of the indoor coil pipe and the temperature of the outdoor coil pipe which are detected in real time, so that the temperature of the refrigerant flowing through the front and the rear of the throttling part is maintained above the pour point temperature of lubricating oil,
comprising the following steps:
controlling the four-way reversing valve to be switched to a refrigerating state, and controlling the indoor fan and the outdoor fan to stop;
when the temperature of the indoor coil pipe is determined to be less than or equal to a first preset temperature, controlling the indoor fan to be started and run in a first preset wind speed gear, controlling the explosion-proof electric heating device to be started, controlling the indoor transverse wind deflector to be positioned at a first preset position, and controlling the air conditioner to exit the defrosting mode until the temperature of the outdoor coil pipe is greater than or equal to a second preset temperature;
after controlling the air conditioner to exit the defrosting mode, the method further comprises:
controlling the compressor to stop, controlling the indoor fan and the anti-explosion electric heating device to be continuously started until the temperature of the indoor coil pipe is higher than or equal to a third preset temperature, controlling the indoor fan and the anti-explosion electric heating device to be closed, controlling the four-way reversing valve to be switched to a heating state after delaying a first preset time, and controlling the compressor to be started so as to control the air conditioner to enter a heating mode, wherein the third preset temperature is higher than the first preset temperature;
after controlling the air conditioner to enter a heating mode, the method further comprises the following steps:
when the temperature of the outdoor coil is determined to be less than or equal to a fourth preset temperature, controlling the indoor fan to operate in a first preset wind speed gear, controlling the explosion-proof electric heating device to be started, controlling the indoor transverse air guide plate to be positioned at the first preset position, controlling the explosion-proof electric heating device to be closed until the temperature of the outdoor coil is greater than or equal to a fifth preset temperature, controlling the indoor fan to operate in a second preset wind speed gear, controlling the indoor transverse air guide plate to be positioned at the second preset position, and controlling the air conditioner to enter a heating mode, wherein the fourth preset temperature is less than the fifth preset temperature, and the fifth preset temperature is less than the second preset temperature.
2. The method according to any one of claims 1, wherein the controlling the indoor air guide plate to be at the first preset position includes:
and controlling the indoor transverse air deflector to incline upwards relative to the horizontal direction so as to reach a preset cold air prevention position.
3. The air conditioner control method according to claim 1, wherein a wind speed corresponding to the second preset wind speed gear is higher than a wind speed corresponding to the first preset wind speed gear.
4. The air conditioner control method according to claim 1, wherein the determining that the air conditioner satisfies the defrosting condition includes:
when the air conditioner is in heating operation, the temperature of the outdoor coil is smaller than or equal to a sixth preset temperature, and the accumulated time of the heating operation of the air conditioner reaches a second preset time, the air conditioner is determined to meet a defrosting condition, and the sixth preset temperature is larger than the fifth preset temperature and smaller than the second preset temperature.
5. A control device of an air conditioner, comprising:
the determining module is used for determining that the air conditioner meets the defrosting condition;
the control module is used for controlling the air conditioner to enter a defrosting mode so as to control one or more of an indoor fan, an outdoor fan, a compressor, an indoor transverse air deflector, a four-way reversing valve and an explosion-proof electric heating device of the air conditioner according to the indoor coil temperature and the outdoor coil temperature detected in real time, so that the temperature of the refrigerant flowing through the throttling part is maintained above the pour point temperature of lubricating oil, and the control module comprises the following components:
controlling the four-way reversing valve to be switched to a refrigerating state, and controlling the indoor fan and the outdoor fan to stop;
when the temperature of the indoor coil pipe is determined to be less than or equal to a first preset temperature, controlling the indoor fan to be started and run in a first preset wind speed gear, controlling the explosion-proof electric heating device to be started, controlling the indoor transverse wind deflector to be positioned at a first preset position, and controlling the air conditioner to exit the defrosting mode until the temperature of the outdoor coil pipe is greater than or equal to a second preset temperature;
after controlling the air conditioner to exit the defrosting mode, the method further comprises:
controlling the compressor to stop, controlling the indoor fan and the anti-explosion electric heating device to be continuously started until the temperature of the indoor coil pipe is higher than or equal to a third preset temperature, controlling the indoor fan and the anti-explosion electric heating device to be closed, controlling the four-way reversing valve to be switched to a heating state after delaying a first preset time, and controlling the compressor to be started so as to control the air conditioner to enter a heating mode, wherein the third preset temperature is higher than the first preset temperature;
after controlling the air conditioner to enter a heating mode, the method further comprises the following steps:
when the temperature of the outdoor coil is determined to be less than or equal to a fourth preset temperature, controlling the indoor fan to operate in a first preset wind speed gear, controlling the explosion-proof electric heating device to be started, controlling the indoor transverse air guide plate to be positioned at the first preset position, controlling the explosion-proof electric heating device to be closed until the temperature of the outdoor coil is greater than or equal to a fifth preset temperature, controlling the indoor fan to operate in a second preset wind speed gear, controlling the indoor transverse air guide plate to be positioned at the second preset position, and controlling the air conditioner to enter a heating mode, wherein the fourth preset temperature is less than the fifth preset temperature, and the fifth preset temperature is less than the second preset temperature.
6. An air conditioner, comprising:
the air conditioner control device according to claim 5; or alternatively, the process may be performed,
a processor, a memory, and an air conditioning control program stored on the memory and executable on the processor, which when executed by the processor, implements the air conditioning control method of any one of claims 1-4.
7. A computer storage medium, wherein an air conditioning control program is stored on the computer readable storage medium, and when executed by a processor, the air conditioning control program implements the air conditioning control method according to any one of claims 1 to 4.
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| CN202111617073.1A CN114294783B (en) | 2021-12-27 | 2021-12-27 | Air conditioner control method and device, air conditioner and storage medium |
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| CN115597187B (en) * | 2022-10-18 | 2024-05-28 | 珠海格力电器股份有限公司 | Intelligent defrosting air conditioner, intelligent defrosting method, device, equipment and medium |
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