CN111237984A - Air conditioner defrosting control method, device, air conditioner and computer readable storage medium - Google Patents

Abstract

The invention provides an air conditioner defrosting control method, an air conditioner defrosting control device, an air conditioner and a computer readable storage medium, wherein the defrosting control method comprises the following steps: when the air conditioner receives a defrosting signal, the four-way valve is controlled to change the direction; starting the electric auxiliary heating equipment, and continuously detecting the current set temperature Ts and the current inner ring temperature Tin of the air conditioner; the inner motor is reversely rotated and operates according to the initial rotating speed N; and adjusting the rotating speed of the inner motor according to the detected set temperature and the detected inner ring temperature. The invention can accelerate defrosting, keep indoor temperature stable and improve user experience.

Description

Air conditioner defrosting control method, device, air conditioner and computer readable storage medium

technical field

The present invention relates to the technical field of air conditioners, and in particular, to an air conditioner defrosting control method, device, air conditioner, and computer-readable storage medium.

Background technique

With the improvement of people's living standards, air conditioners have become an indispensable household appliance in every family. After the air conditioner continues to heat for a period of time, frost will form on the outdoor heat exchanger, the frost layer will prevent heat transfer, the heating performance of the air conditioner will decrease, and the use effect will be affected. After the frost layer reaches a certain thickness, defrosting is required.

The existing defrosting method is mainly through the four-way valve reversal, the heating mode is switched to the cooling mode, the refrigerant absorbs the indoor heat and the heat retained in the compressor during the flow of the refrigerant, and the outdoor unit heat exchanger acts as a condenser to release heat to make the Frost melts. In order to prevent the cold air from blowing in the room, the indoor unit fan stops when defrosting, which makes the heat exchange effect of the indoor unit heat exchanger (evaporator) poor, resulting in a slow defrosting speed, and the thicker the frost layer, the longer the defrosting time. ; When defrosting, the air conditioner stops heating, and will bring indoor heat to the outdoors. Longer defrosting time leads to longer non-heating time and poor user experience.

SUMMARY OF THE INVENTION

The problem solved by the present invention is that the defrosting speed of the existing air conditioner is slow, and the longer defrosting time results in no heating effect in the room for a long time, and the user experience is poor.

In order to solve the above problems, the present invention provides an air conditioner defrosting control method, device, air conditioner and computer-readable storage medium, which can speed up the rate at which refrigerant absorbs heat during defrosting, increase the defrosting speed, and make the air conditioner switch to Heating mode to improve user experience.

The technical scheme adopted in the present invention is as follows:

According to one aspect of the present invention, there is provided a defrosting control method, which comprises the following steps:

When the air conditioner receives the defrosting signal, it controls the four-way valve to change direction;

Turn on the electric auxiliary heating equipment, and continuously detect the current set temperature Ts and the current inner ring temperature Tin of the air conditioner;

Reverse the inner motor and run according to the initial speed N;

Adjust the speed of the inner motor according to the detected set temperature and inner ring temperature.

Through the above control method, the air conditioner can be defrosted. By turning on the electric auxiliary heating equipment, the internal motor is reversed and the speed of the internal motor is adjusted, the defrosting of the outdoor heat exchanger is accelerated, the defrosting time is shortened, and the During the frost period, the indoor heat is lost, and the indoor temperature is kept stable; and the indoor fan is reversed to make the indoor air flow in the opposite direction, and the hot air at the top of the room drops, and the indoor temperature can still be maintained. In addition, by turning on the electric auxiliary heating equipment during defrosting, the internal temperature of the indoor unit is kept stable, and the abnormal sound caused by the thermal expansion and contraction of the plastic parts of the indoor unit is avoided.

In some embodiments of the present invention, when adjusting the rotational speed of the inner motor,

Calculate the inner ring temperature difference ΔTin between the inner ring temperature at the current moment and the previous moment, and calculate the correction temperature difference ΔTin-s between the inner ring temperature at the current moment and the set correction temperature;

Adjust the speed of the inner motor according to the inner ring temperature difference ΔTin and the corrected temperature difference ΔTin-s.

In some embodiments of the present invention, the set correction temperature is the sum of the set temperature and the first correction temperature

In some embodiments of the present invention,

Under the condition that the inner ring temperature difference ΔTin is fixed, when the corrected temperature difference ΔTin-s is a positive value, the rotational speed of the inner motor is greater than when the corrected temperature difference ΔTin-s is a negative value; and/or,

When the corrected temperature difference ΔTin-s is fixed, when the inner ring temperature difference ΔTin is a positive value, the rotational speed of the inner motor is greater than when the inner ring temperature difference ΔTin is a negative value.

In some embodiments of the present invention, when adjusting the rotational speed of the inner motor, the rotational speed of the inner motor is determined by an interpolation method.

In some embodiments of the present invention, the defrosting control method further includes the following steps: during the defrosting process,

When the inner ring temperature satisfies the following conditions (1) or (2), turn off the electric auxiliary heating equipment:

(1) the inner ring temperature is greater than the first preset temperature;

(2) The inner ring temperature is greater than the second preset temperature and lasts for a first preset time; wherein the first preset temperature is greater than the second preset temperature.

In some embodiments of the present invention, the defrosting control method further includes the following steps:

When the inner ring temperature satisfies the following conditions (3) or (4), the electric auxiliary heating equipment will be turned on again:

(3) the inner ring temperature is less than the sum of the set temperature and the second correction temperature, and continues for the second preset time;

(4) The inner ring temperature is less than the sum of the set temperature and the third correction temperature; wherein, the second correction temperature is less than the third correction temperature.

During the defrosting process, if the power of the electric auxiliary heating equipment is large enough, the indoor temperature will be too high, which will affect the user experience. At this time, the electric auxiliary heating equipment will be turned off, and then the indoor temperature will continue to drop. When it drops to a certain level, it needs to be restored. Turn on the electric auxiliary heating equipment, and through the above defrosting control methods, the indoor temperature can be kept stable.

In some embodiments of the present invention, the defrosting control method further includes the following steps:

When the air conditioner receives the exit defrosting signal, the electric auxiliary heating device is turned off, and when the inner disk temperature reaches the smaller of the inner ring temperature before defrosting and the third preset temperature, the rotation of the inner motor is stopped. The inner motor stops immediately after exiting the defrosting, so that when the heating is reheated after exiting the defrosting, it will help the residual heat of the electric auxiliary heating equipment to continue to heat the indoor heat exchanger, the temperature of the inner disk will increase rapidly, and the anti-cold wind time will be shortened.

According to another aspect of the present invention, an air conditioner defrosting control device is also provided, which includes:

memory for storing executable instructions;

A processor for executing the executable instructions stored in the memory to perform the following operations:

When the air conditioner receives the defrosting signal, it controls the four-way valve to change direction;

Turn on the electric auxiliary heating equipment, and continuously detect the current set temperature Ts and the current inner ring temperature Tin of the air conditioner;

Reverse the inner motor and run according to the initial speed N;

Adjust the speed of the inner motor according to the detected set temperature and inner ring temperature.

According to another aspect of the present invention, an air conditioner is also provided, which includes a memory, a processor, and a computer program stored in the memory and running on the processor. When the processor executes the computer program, the above-mentioned air conditioner removal is realized. Steps defined in the frost control method.

According to another aspect of the present invention, there is also provided a computer-readable storage medium on which a computer program is stored, and when the computer program is executed, the steps of the above-mentioned air conditioner defrosting control method are implemented.

Description of drawings

FIG. 1 is a schematic diagram of steps of a defrosting control method for an air conditioner according to an embodiment of the present invention.

FIG. 2 is a schematic diagram of a parameter relationship for adjusting the rotational speed of an internal motor according to an embodiment of the present invention.

FIG. 3 is a time sequence diagram of an air conditioner defrosting according to an embodiment of the present invention.

FIG. 4 is a schematic flowchart of an air conditioner defrosting control method according to an embodiment of the present invention.

5 is a schematic diagram of the composition and structure of an air conditioner defrosting control device according to an embodiment of the present invention.

Detailed ways

When the air conditioner operates in the heating mode, the heat exchanger on the outdoor side of the air conditioner is gradually frosted, and the frost layer will prevent heat transfer. As the air conditioner continues to operate, the frost layer will continue to thicken. The heating performance of the air conditioner is reduced by the influence of the frost layer. If defrosting is not performed at this time, the frost layer will become thicker and thicker, which will affect the heating effect of the air conditioner. For the existing defrosting method, the present invention A new air conditioner defrosting control method is provided, which shortens the defrosting time and keeps the indoor temperature stable by turning on the electric auxiliary heat, reversing the inner motor and adjusting the speed of the inner motor, and improving the user experience.

In order to make the above objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Certain embodiments of the present invention will be described more fully hereinafter with reference to the accompanying drawings, some, but not all embodiments, of which are shown. Indeed, various embodiments of the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this invention will satisfy applicable legal requirements.

In an embodiment of the present invention, an air conditioner defrosting control method is provided, as shown in FIG. 1 , which includes the following steps:

S1. When the air conditioner receives the defrosting signal, it controls the four-way valve to change direction.

After receiving the defrosting signal, the air conditioner enters the defrosting state, and controls the four-way valve to change direction, that is, changing the communication mode of the four valve ports of the four-way valve, so that the refrigerant changes the flow direction, and the air conditioner is converted from the heating mode. In cooling mode, heat is carried to the outside for defrosting. The reversing time of the four-way valve is executed according to the time set in the program. The reversing time refers to the time interval between the time the air conditioner receives the defrost signal and the time when the four-way valve changes direction. For example, the reversing time is 50s, and the air conditioner After the device receives the defrost signal, the four-way valve changes direction after 50s.

S2. Turn on the electric auxiliary heating device, and continuously detect the current set temperature Ts and the current inner ring temperature Tin of the air conditioner.

After the four-way valve is reversed, the air conditioner stops heating and will bring the indoor heat to the outside. In order to supplement the heat, the electric auxiliary heating equipment is turned on, so that the air is heated by the electric auxiliary heating equipment before entering the room from the air conditioner. After being heated, it flows into the room. In this step, the temperature detection accuracy is 0.5°C, and the detection interval is 1s, that is, the current set temperature Ts and the current inner ring temperature Tin are detected every 1s, and this detection is continuous. It should be noted that the current inner ring temperature Tin is detected by the inner ring sensor at the air inlet of the air conditioner, the current inner ring temperature Tin is different from the current indoor temperature, and the current inner ring temperature Tin is higher than the current This is because the temperature of the air is higher after being heated by the electric auxiliary heating equipment, and the temperature of the air will decrease after evaporating and absorbing heat through the indoor heat exchanger. Therefore, the temperature of the air blown from the air outlet of the air conditioner decreases, so the inner The temperature sensed by the temperature sensor is higher than the room temperature.

S3. Reverse the inner motor and work according to the initial rotation speed N (rpm).

After the electric auxiliary heating equipment is turned on, the internal motor reverses according to the initial speed, rpm is the speed unit, and the initial speed N is set as the silent fan speed. When the inner motor rotates forward, the hot air blown by the air conditioner will flow toward the roof, and the cold air will flow toward the indoor floor; after the inner motor is reversed, the indoor air will flow in the opposite direction, and the hot air at the top of the room will drop, which helps Maintain room temperature.

S4. Calculate the inner ring temperature difference ΔTin=Tin(i)-Tin(i-1) between the current moment and the inner ring temperature at the previous moment, calculate the correction temperature difference ΔTin-s between the inner ring temperature and the set correction temperature at the current moment, as a A specific embodiment, the set correction temperature is the sum of the set temperature and the first correction temperature (for example, 10°C), that is, ΔTin-s=Tin(i)-[Ts(i)+first correction temperature], i represents The current moment, which is a positive integer.

S5. Adjust the rotational speed of the inner motor according to the inner ring temperature difference ΔTin and the corrected temperature difference ΔTin-s.

The speed of the internal motor is inversely proportional to the air temperature at the air outlet of the air conditioner, that is to say, the speed of the internal motor will affect the indoor temperature. Therefore, the indoor temperature can be maintained stable by adjusting the speed of the internal motor. In the present invention, the rotational speed of the inner motor is adjusted according to the inner ring temperature difference ΔTin and the corrected temperature difference ΔTin-s, and the parameter relationship for adjusting the rotational speed of the inner motor is shown in FIG. 2 .

The higher the rotation speed of the inner motor, the lower the temperature of the air outlet. When the indoor temperature is low, the rotation speed of the inner motor is reduced; otherwise, the rotation speed of the inner motor is increased. Increase the speed to lower the temperature of the air blown into the room; decrease the speed to increase the temperature of the air blown into the room.

When calculating the corrected temperature difference ΔTin-s, the set temperature should be added with the first corrected temperature and then the difference with the inner ring temperature at the current moment should be made to prevent the air lower than the indoor temperature from being blown into the room. The temperature at the top of the room is generally higher than the set temperature. For example, if the set temperature is 30°C, the temperature at the top of the room may reach 35°C. If the corrected temperature difference ΔTin-s is the difference between the inner ring temperature and the set temperature at the current moment , the value of the corrected temperature difference ΔTin-s is overestimated, and the internal motor speed may be increased by mistake, so that the air lower than the indoor temperature is blown in. For example, suppose that the difference between the inner ring temperature at the current moment and the set temperature is a positive value, and the temperature difference between the inner ring temperature at the current moment and (the setting temperature + the first corrected temperature (for example, 10°C)) is a negative value, as shown in Figure 2 It is shown that when the inner ring temperature difference ΔTin is 1, when the corrected temperature difference ΔTin-s is a positive value, the inner motor speed is greater than N+30, and when the corrected temperature difference ΔTin-s is a negative value, the inner motor speed is less than N+30. Therefore, ignoring the first correction temperature will lead to changing the rotation speed that should be reduced to increase the rotation speed, further reducing the indoor temperature and affecting the user experience.

As shown in Figure 2, the ordinate represents the inner ring temperature difference ΔTin, the abscissa represents the corrected temperature difference ΔTin-s, and the oblique line represents the inner motor speed value, such as N, N-30, N+30... . For example, if the corrected temperature difference ΔTin-s is 10 and the inner ring temperature difference ΔTin is 0, the inner motor speed should be adjusted to N. It can be seen from Figure 2 that when the inner ring temperature difference ΔTin is fixed, the internal motor speed is greater when the corrected temperature difference ΔTin-s is a positive value than when the corrected temperature difference ΔTin-s is a negative value. When the corrected temperature difference ΔTin-s is fixed, when the inner ring temperature difference ΔTin is a positive value, the inner motor speed is greater than when the inner ring temperature difference ΔTin is a negative value.

In addition, when adjusting the rotational speed of the inner motor, the rotational speed of the inner motor is determined by interpolation.

Through the above steps of the present invention, the defrosting of the air conditioner can be controlled. By turning on the electric auxiliary heating equipment, reversing the inner motor and adjusting the rotation speed of the inner motor, the defrosting of the outdoor heat exchanger is accelerated, the defrosting time is shortened, and the During the defrosting period, the loss of indoor heat is avoided, and the indoor temperature is kept stable; and the indoor fan is reversed to make the indoor air flow in the opposite direction, and the hot air at the top of the room drops, and the indoor temperature can still be maintained. In addition, by turning on the electric auxiliary heating equipment during defrosting, the internal temperature of the indoor unit is kept stable, and the abnormal sound caused by the thermal expansion and contraction of the plastic parts of the indoor unit is avoided.

In this embodiment, the air conditioner defrosting control method further includes the following steps:

S6. When the inner ring temperature satisfies the following conditions (1) or (2), turn off the electric auxiliary heating equipment:

(1) the inner ring temperature is greater than the first preset temperature;

(2) The inner ring temperature is greater than the second preset temperature and lasts for the first preset time; wherein, the first preset temperature is greater than the second preset temperature, for example, the first preset temperature is 55°C, and the second preset temperature The temperature is 50°C, and the first preset time is 10s.

S7. When the inner ring temperature satisfies the following conditions (3) or (4), resume the opening of the electric auxiliary heating equipment:

(3) the inner ring temperature is less than the sum of the set temperature and the second correction temperature, and continues for the second preset time;

(4) The inner ring temperature is less than the sum of the set temperature and the third correction temperature; wherein, the second correction temperature is less than the third correction temperature, for example, the second correction temperature is 5°C, the third correction temperature is 10°C, and the second correction temperature is 10°C. The preset time is 10s.

During the defrosting process, if the power of the electric auxiliary heating equipment is large enough, the indoor temperature will be too high, which will affect the user experience. At this time, the electric auxiliary heating equipment will be turned off, and then the indoor temperature will continue to drop. When it drops to a certain level, it needs to be restored. Turn on the electric auxiliary heating equipment, and through the above defrosting control methods, the indoor temperature can be kept stable.

S8. When the air conditioner receives the exit defrosting signal, the electric auxiliary heating device is turned off, and when the inner disk temperature reaches min {the inner ring temperature before defrosting, the third preset temperature}, the rotation of the inner motor is stopped.

After the air conditioner receives the exit defrosting signal, it exits the defrosting state and turns off the electric auxiliary heating equipment, but the inner motor continues to rotate at this time. After a period of time, when the inner disk temperature reaches min {the inner ring temperature before defrosting, the third When the temperature is set}, stop the rotation of the inner motor. After exiting the defrost, the four-way valve changes direction after the exit defrost reversing time, and the exit defrost reversing time refers to the time interval from the time when the air conditioner receives the exit defrost signal to the time when the four-way valve changes direction, as shown in the figure 3, Figure 3 is the time sequence diagram of air conditioner defrosting, the broken line represents the change of compressor power on the time axis, after the air conditioner receives the defrosting signal, the compressor stops working, and after a period of time, the four-way valve changes direction , the electric auxiliary heating equipment is turned on, and the internal motor is reversed; after that, the power of the compressor is gradually increased to a stable operation, and after a period of time, the air conditioner receives the exit defrosting signal, the electric auxiliary heating equipment is turned off, and another period of time (exiting the defrosting signal) After the four-way valve reversing time after defrosting), the four-way valve reversing, after that, the power of the compressor is gradually increased to stable operation, when the inner disk temperature reaches min {the inner ring temperature before defrosting, the third preset temperature}, When the inner motor stops, min{the inner ring temperature before defrosting, the third preset temperature} represents the minimum value between the inner ring temperature before defrosting and the third preset temperature, and the third preset temperature is, for example, 20°C.

It can be seen from the above that after exiting the defrosting, the motor still runs until the inner disk temperature reaches min {the inner ring temperature before defrosting, the third preset temperature}, the inner motor will stop. The inner motor stops immediately after exiting the defrosting, so that when the heating is reheated after exiting the defrosting, it will help the residual heat of the electric auxiliary heating equipment to continue to heat the indoor heat exchanger, the temperature of the inner disk will increase rapidly, and the anti-cold wind time will be shortened.

In the present invention, when the air conditioner enters the defrosting state after receiving the defrosting signal, the electric auxiliary heating device is turned on at the same time, the electric auxiliary heating device heats the evaporator, and the refrigerant takes the heat of the evaporator out to the condenser for defrosting. . When the air conditioner receives the exit defrost signal, it exits the defrost state, and the electric auxiliary heat returns to the original user-set state. Through the defrosting control method of the present invention, defrosting can be accelerated, indoor temperature can be kept stable, and user experience can be improved.

As shown in Figure 4, the control logic of the defrosting control method is as follows:

The air conditioner receives the defrosting signal and enters the defrosting state;

Four-way valve reversing;

When the electric auxiliary heating equipment is turned on, the inner motor reverses at the initial speed;

Detect user-set temperature Ts and inner ring temperature Tin;

Calculate the inner ring temperature difference ΔTin and the corrected temperature difference ΔTin-s;

Adjust the inner motor speed according to the inner ring temperature difference ΔTin and the corrected temperature difference ΔTin-s;

When the air conditioner receives the exit defrosting signal, the electric auxiliary heating equipment is turned off;

Detect the inner disk temperature and calculate min {inner ring temperature before defrosting, 20°C};

Determine whether the inner disk temperature is greater than or equal to min {inner ring temperature before defrosting, 20°C}, if so, the inner motor stops, if not, continue to detect the inner disk temperature;

During the defrosting process, judge whether the inner ring temperature is greater than 55°C or whether the inner ring temperature is greater than 50°C for 10s, if so, turn off the electric auxiliary heating equipment, if not, continue to detect the inner ring temperature;

Determine whether the inner ring temperature is less than (set temperature + 5°C) for 10s, or whether the inner ring temperature is less than (set temperature + 10°C), if so, resume turning on the electric auxiliary heating equipment, if not, continue to detect the inner ring temperature .

In an embodiment of the present invention, an air conditioner defrosting control device is also provided, as shown in FIG. 5 , which includes:

memory for storing executable instructions;

A processor for executing executable instructions stored in the memory to perform the following operations:

When the air conditioner receives the defrosting signal, it controls the four-way valve to change direction;

Turn on the electric auxiliary heating equipment, and continuously detect the current set temperature Ts and the current inner ring temperature Tin of the air conditioner;

Reverse the inner motor and work according to the initial speed N (rpm);

Calculate the inner ring temperature difference ΔTin=Tin(i)-Tin(i-1) between the inner ring temperature at the current moment and the previous moment, calculate the inner ring temperature at the current moment and (set temperature + first correction temperature (eg 10°C)) The corrected temperature difference ΔTin-s=Tin(i)-[Ts(i)+first corrected temperature], i represents the current moment, which is a positive integer;

Adjust the speed of the inner motor according to the inner ring temperature difference ΔTin and the corrected temperature difference ΔTin-s.

In this embodiment, an air conditioner is also provided, which includes a memory, a processor, and a computer program stored in the memory and running on the processor. When the processor executes the computer program, the above-mentioned air conditioner defrosting is realized. The steps defined by the control method.

In this embodiment, a computer-readable storage medium is also provided, on which a computer program is stored, and when the computer program is executed, the steps of the air conditioner defrosting control method proposed in the above-mentioned embodiment are implemented.

So far, the present embodiment has been described in detail with reference to the accompanying drawings. Based on the above description, those skilled in the art should have a clear understanding of the air conditioner defrosting control method, device, air conditioner and computer-readable storage medium of the present invention.

It should be noted that, unless specifically described or the steps must be performed in sequence, the order of the above steps is not limited to those listed above, and can be changed or rearranged according to the desired design. And the above embodiments can be mixed and matched with each other or with other embodiments based on the consideration of design and reliability, that is, the technical features in different embodiments can be freely combined to form more embodiments.

Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium, and the storage medium includes a read-only storage medium. Memory (Read-Only Memory, ROM), Random Access Memory (Random Access Memory, RAM), Programmable Read-only Memory (PROM), Erasable Programmable Read Only Memory (Erasable Programmable Read Only Memory, EPROM), one-time programmable read-only memory (Onetime Programmable Read-Only Memory, O TPROM), electronically erasable rewritable read-only memory (Electrically-Erasable Programmable Read-Only Memory, EEPROM), CD-ROM ( CompactDisc Read-Only Memory, CD-ROM) or other optical disk storage, magnetic disk storage, tape storage, or any other computer-readable medium that can be used to carry or store data.

Although the present invention is disclosed above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be based on the scope defined by the claims.

Claims (11)

1. a defrosting control method, is characterized in that, it comprises the following steps: When the air conditioner receives the defrosting signal, it controls the four-way valve to change direction; Turn on the electric auxiliary heating equipment, and continuously detect the current set temperature Ts and the current inner ring temperature Tin of the air conditioner; Reverse the inner motor and run according to the initial speed N; Adjust the speed of the inner motor according to the detected set temperature and inner ring temperature. 2. The defrosting control method according to claim 1, characterized in that, when adjusting the rotational speed of the inner motor, Calculate the inner ring temperature difference ΔTin between the inner ring temperature at the current moment and the previous moment, and calculate the correction temperature difference ΔTin-s between the inner ring temperature at the current moment and the set correction temperature; Adjust the speed of the inner motor according to the inner ring temperature difference ΔTin and the corrected temperature difference ΔTin-s. 3 . The defrosting control method according to claim 2 , wherein the set correction temperature is the sum of the set temperature and the first correction temperature. 4 . 4. The defrosting control method according to claim 2, characterized in that, Under the condition that the inner ring temperature difference ΔTin is fixed, when the corrected temperature difference ΔTin-s is a positive value, the rotational speed of the inner motor is greater than when the corrected temperature difference ΔTin-s is a negative value; and/or, In the case where the corrected temperature difference ΔTin-s is fixed, the rotational speed of the inner motor when the inner ring temperature difference ΔTin is a positive value is greater than the rotational speed of the inner motor when the inner ring temperature difference ΔTin is a negative value. 5 . The defrosting control method according to claim 4 , wherein when adjusting the rotational speed of the inner motor, the rotational speed of the inner motor is determined by an interpolation method. 6 . 6. The defrosting control method according to claim 1, characterized in that, it further comprises the following steps: during the defrosting process, When the inner ring temperature satisfies the following conditions (1) or (2), turn off the electric auxiliary heating equipment: (1) the inner ring temperature is greater than the first preset temperature; (2) The inner ring temperature is greater than the second preset temperature and lasts for a first preset time; wherein the first preset temperature is greater than the second preset temperature. 7. The defrosting control method according to claim 6, characterized in that, it further comprises the following steps: When the inner ring temperature satisfies the following conditions (3) or (4), the electric auxiliary heating equipment will be turned on again: (3) the inner ring temperature is less than the sum of the set temperature and the second correction temperature, and continues for the second preset time; (4) The inner ring temperature is less than the sum of the set temperature and the third correction temperature; wherein, the second correction temperature is less than the third correction temperature. 8. The defrosting control method according to claim 1, characterized in that, it further comprises the following steps: When the air conditioner receives the exit defrosting signal, the electric auxiliary heating device is turned off, and when the inner disk temperature reaches the smaller of the inner ring temperature before defrosting and the third preset temperature, the rotation of the inner motor is stopped. 9. An air conditioner defrosting control device, characterized in that it comprises: memory for storing executable instructions; A processor for executing the executable instructions stored in the memory to perform the following operations: When the air conditioner receives the defrosting signal, it controls the four-way valve to change direction; Turn on the electric auxiliary heating equipment, and continuously detect the current set temperature Ts and the current inner ring temperature Tin of the air conditioner; Reverse the inner motor and run according to the initial speed N; Adjust the speed of the inner motor according to the detected set temperature and inner ring temperature. 10. An air conditioner, characterized in that it comprises a memory, a processor and a computer program that is stored in the memory and can be run on the processor, and when the processor executes the computer program, any one of claims 1-8 is realized. The defined steps of the air conditioner defrosting control method. 11. A computer-readable storage medium, characterized in that a computer program is stored thereon, and when the computer program is executed, the steps of the air-conditioning defrosting control method according to any one of claims 1-8 are implemented.

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