CN115875818A - Control method and control device of air conditioner, air conditioner and readable storage medium - Google Patents

Abstract

The invention provides a control method and a control device of an air conditioner, the air conditioner and a readable storage medium. The control method of the air conditioner comprises the following steps: when the air conditioner is started, under the condition that an outdoor fan of the air conditioner is in a reverse rotation state, a reverse rotation protection mode is executed; the reverse protection mode includes: determining a target interval A in which a reverse rotation speed V of an outdoor fan falls in at least two rotation speed range intervals _Target (ii) a Monitoring the reverse rotation speed V remaining falling within the target zoneA between _Target The duration T of the state within; according to the target interval A _Target And a duration T, controlling the operation of the air conditioner. The air conditioner can be controlled according to the reverse rotation speed V of the outdoor fan and the duration time T of the reverse rotation speed V, so that the aim of giving consideration to the temperature regulation effect and efficiency of the air conditioner on the basis of protecting the air conditioner is fulfilled.

Description

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

technical field

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

Background technique

With the development of science and technology and the progress of society, air conditioners have been used more and more widely. For the outdoor unit of the air conditioner, there is an outdoor fan inside. When the air conditioner is running, the outdoor fan rotates under the drive of the motor, thereby assisting the refrigerant in the refrigerant circulation pipeline of the air conditioner to communicate with the outdoor space. Exchange heat or cold.

When the wind in the outdoor environment is strong, the fan blades of the outdoor fan will automatically rotate. The automatic rotation of the fan blades may easily cause difficulty in starting the drive motor of the outdoor fan or even damage it. In this case, how to protect the driving motor and take into account the temperature regulation effect and efficiency of the air conditioner has become a technical problem to be solved by those skilled in the art.

Contents of the invention

The problem solved by the invention is how to protect the driving motor and take into account the temperature regulation effect and efficiency of the air conditioner.

In order to solve the above problems, the present invention provides a control method of an air conditioner. The control method includes: when the air conditioner is started, when the outdoor fan of the air conditioner is in the reverse state, executing the reverse protection mode; Including: in at least two speed range intervals, determine the target interval A _target where the reverse rotation speed V of the outdoor fan falls into; monitor the duration T of the state where the reverse rotation speed V remains within the target interval A _target ; according to the target interval A _target and duration T, control the operation of the air conditioner.

In the present invention, the target interval A _target and the duration T are jointly used as adjustment factors for air conditioner adjustment, and the operation of the air conditioner is controlled according to the target interval A _target to which the reverse rotation speed V belongs and the duration T within the target interval A _target . Comprehensive adjustment and control is carried out in a comprehensive way, so that on the basis of protecting the air conditioner, the temperature adjustment effect and efficiency of the air conditioner are taken into account, and the user experience is improved.

Further, controlling the operation of the air conditioner according to the target interval A _target and duration T, specifically includes: controlling the start and stop of the outdoor fan drive motor of the air conditioner according to the target interval A _target and duration T; and/or according to the target interval A _target and duration T, control the start and stop of the compressor of the air conditioner; and/or control the frequency of the compressor of the air conditioner according to the target interval A _target and duration T.

When the reverse rotation protection mode needs to be implemented, the above control method can prevent the outdoor fan drive motor and/or compressor from starting when the outdoor fan is reversed, or limit the frequency of the compressor when the outdoor fan is reversed. operation, so as to achieve the purpose of protecting the driving motor and/or compressor of the outdoor fan and taking into account the effect and efficiency of temperature regulation.

Further, at least two speed range intervals include the first interval A ₁ ; according to the target interval A _target and the duration T, the operation of the air conditioner is controlled, including: in the target interval A, _{the target} is the first interval A ₁ and the duration T is not When the first time threshold T _{threshold 1} is reached, the outdoor fan drive motor and compressor of the air conditioner are controlled to maintain the initial state; in the target interval A, _{the target} is the first interval A ₁ and the duration T reaches the first time threshold T _{threshold 1} In the case of the air conditioner, the outdoor fan drive motor of the air conditioner is controlled to keep shutting down, and the compressor of the air conditioner is controlled to be turned on.

In the case where _the target interval A is the first interval _A1 and the duration T has not reached the first time threshold _Tthreshold1 , it indicates that the reverse rotation speed V is not stable. At this time, the outdoor fan drive motor and compressor of the air conditioner are controlled Maintaining the initial state can achieve the purpose of protecting the drive motor and compressor of the outdoor fan. In the case where the target interval A _is the first interval _A1 and the duration T reaches the first time threshold Tthreshold ₁ , it indicates that the reverse rotation speed V is relatively stable. At this time, the drive motor of the outdoor fan of the air conditioner is controlled to keep shutting down. And control the compressor of the air conditioner to start, can achieve the purpose of protecting the driving motor of the outdoor fan and taking into account the effect of temperature regulation.

Further, at least two speed range intervals also include a second interval A ₂ , the lower limit of the second interval A ₂ is greater than or equal to the upper limit of the first interval A ₁ ; according to the target interval A _target and the duration T, the control The operation of the air conditioner also includes: when the target interval A _target is the second interval _A2 and the duration T does not reach the second time threshold T _{threshold 2} , control the outdoor fan driving motor of the air conditioner to keep shutting down, and control The compressor of the air conditioner is turned on and runs at the first frequency _F1 ; when the target interval A is _the second interval _A2 and the duration T reaches the second time threshold T _threshold2 , the outdoor fan drive motor of the air conditioner is controlled Keep off, and control the compressor of the air conditioner to turn on and run at the second frequency F ₂ ; wherein, the first frequency F ₁ is lower than the second frequency F ₂ .

In the case _where the target interval A is the second interval _A2 and the duration T has not reached the second time threshold T _{threshold 2} , it indicates that the reverse rotation speed V is high and unstable. At this time, the outdoor fan drive motor of the air conditioner is controlled Shutting down and controlling the compressor of the air conditioner to start and run at the first frequency _F1 can achieve the purpose of protecting the driving motor of the outdoor fan and taking into account the effect of temperature regulation. In the case where _the target interval A is the second interval A ₊₂ and the duration T reaches the second time threshold Tthreshold ₂ , it means that the reverse rotation speed V is relatively high and relatively stable. stop, and control the compressor of the air conditioner to start and run at the second frequency _F2 , that is, to increase the frequency compared with the case where the reverse rotation speed V is high and unstable, so as to protect the outdoor fan drive motor and further take into account the temperature regulation The effect is to improve the user experience.

Further, at least two speed range intervals also include a third interval A ₃ , the upper limit of the third interval A ₃ is less than or equal to the lower limit of the first interval A ₁ ; the control method further includes: in the target interval A, _{the target} is In the case of the third section _A3 , the air conditioner is controlled to execute the start-up procedure.

In the case where _the target interval A is the third interval A ₃ , it means that the reverse rotation speed V is low, and the drive motor of the outdoor fan does not need too much torque to start. At this time, the air conditioner can be controlled to execute the start-up procedure to ensure normal operation.

Further, the control method further includes: when the air conditioner is started, when the outdoor fan of the air conditioner is in a non-reversing state, controlling the air conditioner to execute a start-up procedure.

The present invention controls the normal start-up of the air conditioner when the outdoor fan is not reversed (including forward rotation or stop), and the outdoor fan and compressor are both started normally, thereby ensuring the normal operation of the air conditioner.

Further, after controlling the operation of the air conditioner according to the target interval A _target and the duration T, the control method further includes: after an interval of the target time, detecting whether the outdoor fan is in the reverse state; in the case that the outdoor fan is in the reverse state Next, execute the reverse protection mode again.

The control method of the present invention is executed cyclically after the interval of the target time, which can effectively monitor the reversal of the outdoor fan, and reasonably control the air conditioner accordingly, so as to achieve the purpose of protecting the air conditioner.

The present invention also provides a control device for an air conditioner. The control device includes: a reverse rotation protection module. Protection mode; the reverse protection mode includes: in at least two speed range intervals, determining the target interval A _target where the reverse speed V of the outdoor fan falls; monitoring the state of the reverse speed V falling within the target interval A _target Duration T; According to the target interval A _target and duration T, the operation of the air conditioner is controlled.

The control device of the present invention implements the steps of the control method of the present invention, which can achieve the beneficial effects of the control method of the present invention, and will not be repeated here.

The present invention also provides an air conditioner. The air conditioner includes a processor, a memory, and a program or instruction stored in the memory and operable on the processor. When the program or instruction is executed by the processor, any of the above technical solutions can be realized. The steps of the control method.

The air conditioner of the present invention implements the steps of the control method of the present invention, which can achieve the beneficial effects of the control method of the present invention, and will not be repeated here.

The present invention also provides a computer-readable storage medium, the computer-readable storage medium includes a computer program, and when the computer program runs, the steps of the control method according to any one of the above technical solutions are implemented.

The computer-readable storage medium of the present invention implements the steps of the control method of the present invention, which can achieve the beneficial effects of the control method of the present invention, and will not be repeated here.

Beneficial effect

In the present invention, the target interval A _target and the duration T are jointly used as adjustment factors for air conditioner adjustment, and the operation of the air conditioner is controlled according to the target interval A _target to which the reverse rotation speed V belongs and the duration T within the target interval A _target . Comprehensive adjustment and control is carried out in a comprehensive way, so that on the basis of protecting the air conditioner, the temperature adjustment effect and efficiency of the air conditioner are taken into account, and the user experience is improved.

Description of drawings

Fig. 1 is one of the flow charts of the steps of the control method of the present invention;

Fig. 2 is the second flow chart of the steps of the control method of the present invention.

Detailed ways

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

When the wind in the outdoor environment is strong (especially when the outdoor fan is installed on a high floor), the fan blades of the air conditioner's outdoor fan will automatically rotate. Wherein, if the rotation direction of the fan blade is the same as the original rotation direction of the outdoor fan, the driving motor of the outdoor fan can start and run normally. However, if the rotation direction of the fan blade is different from the original rotation direction of the outdoor fan, there will be a risk that the drive motor will be difficult to start or even damaged.

The reason for this problem is that if the rotation direction of the fan blade is different from the original rotation direction of the outdoor fan, the driving motor of the outdoor fan needs a large torque to start up. In this case, the temperature of the motor will rise, and the motor may even fail to start or be burned. In addition, the compressor of the air conditioner may not start normally.

Therefore, it is very necessary to protect the internal components of the air conditioner (especially the drive motor and compressor of the outdoor fan) when the outdoor fan is driven by wind to rotate in reverse.

In the related art, when the air conditioner is started, if it is found that the outdoor fan is driven by the wind to reversely rotate, then generally the driving motor of the outdoor fan is controlled to keep shutting down. However, the problem in the related art is that it can only realize the function of protecting the driving motor of the outdoor fan, but it is difficult to balance the temperature regulation effect and efficiency of the air conditioner. When the outdoor wind continues to be strong, the air conditioner cannot be started and operated, resulting in poor temperature regulation and efficiency, which affects user experience.

In order to solve the above problems, the present invention provides a control method of an air conditioner, the control method comprising: when the air conditioner is started, when the outdoor fan of the air conditioner is in the reverse rotation state, executing the reverse rotation protection mode.

Wherein, as shown in Figure 1, the reversal protection mode includes:

S100. In at least two rotation speed range intervals, determine a target interval A _target in which the reverse rotation speed V of the outdoor fan falls;

S200. Monitor the duration T of the state in which the reverse rotation speed V remains within the target interval A _target ;

S300. Control the operation of the air conditioner according to the target interval A _target and the duration T.

It can be understood that the purpose of controlling the air conditioner to execute the reverse rotation protection mode is to protect the internal components of the air conditioner (especially the drive motor and compressor of the outdoor fan) to prevent it from being forced to start when the outdoor fan is reversed. damage.

It should be noted that, in order to achieve the above purpose, when the air conditioner is started, it is first necessary to detect whether the outdoor fan of the air conditioner is in a reverse state. Wherein, the detection method of whether the outdoor fan is in the reverse state belongs to the prior art, and the present invention will not repeat it here.

It should be noted that, in the present invention, the range interval in which the rotation speed V falls can be judged according to the specific value of the reverse rotation speed V. Wherein, the detection method of the rotation speed of the outdoor fan belongs to the prior art, and the present invention will not repeat it here.

It can be understood that the at least two speed range intervals may be two or more continuous intervals, or two or more discontinuous intervals. The unit of the rotational speed may be rev/min.

In an example of the present invention, the at least two speed range intervals may include two discontinuous speed range intervals of <80 and >120.

In another example of the present invention, the at least two speed range intervals may include two continuous speed range intervals of ≤100 and >100.

In yet another example of the present invention, the at least two speed range intervals may include three speed range intervals of <300, 300-500, and >500.

In yet another example of the present invention, the at least two speed range intervals may include four speed range intervals of <100, 100-200, 201-300, and >300.

It can be understood that in at least two speed range intervals, determining the target interval A _target in which the reverse rotation speed V of the outdoor fan falls refers to: determining the target interval A _target in which the reverse rotation speed V falls, specifically belonging to at least two speed ranges. Which of the range intervals.

In an example of the present invention, the at least two speed range intervals may include two speed range intervals of ≤100 and >100. Correspondingly, if the reverse rotational speed V is 80, the _target interval A is ≤100; if the reverse rotational speed V is 120, the _target interval A is >100.

In another example of the present invention, the at least two speed range intervals may include three speed range intervals of <300, 300-500, and >500. Correspondingly, if the reverse rotation speed V is 250, the target interval A _target is <300; if the reverse rotation speed V is 320, the target interval A _target is 300-500; if the reverse rotation speed V is 540, the target interval A _Aim for >500.

It can be understood that the duration T refers to: the duration T of the state in which the reverse rotation speed V remains within the target interval A _target .

In an example of the present invention, at least two speed range intervals may include two speed range intervals of ≤100 and >100, and the target interval A _{is targeted} to be >100. Correspondingly, the duration T is the time during which the reverse rotation speed V remains >100.

In another example of the present invention, the at least two speed range intervals may include three speed range intervals of <300, 300-500, and >500, and the target _interval A is 300-500. Correspondingly, the duration T is the time during which the reverse rotation speed V is maintained at 300-500.

One of the inventive points of the present invention is that it controls the operation of the air conditioner according to the target interval A _target and the duration T. In the related art, the air conditioner is generally controlled only according to the target interval A _target in which the reverse rotation speed V falls (for example, when the reverse rotation speed V is higher than a certain threshold, the outdoor fan of the air conditioner will not start). The existing problem is that the control method of the related technology tends to cause the air conditioner to fail to start and run when the outdoor wind force is continuously strong. For this reason, the present invention uses the target interval A _target and the duration T together as the adjustment factor for air conditioner adjustment, and according to the target interval A _target to which the reverse rotation speed V belongs and the duration T within the target interval A _target , the air conditioner The operating mode of the air conditioner is comprehensively adjusted and controlled, so that on the basis of protecting the air conditioner, the temperature adjustment effect and efficiency of the air conditioner are taken into account, and the user experience is improved.

It can be understood that the control method of the present invention further includes: when the air conditioner is started, when the outdoor fan of the air conditioner is in a non-reversing state, controlling the air conditioner to execute a start-up procedure.

In other words, the present invention controls the normal start-up of the air conditioner when the outdoor fan is not reversed (including forward rotation or stopped), and the outdoor fan and compressor are both started normally, thereby ensuring the normal operation of the air conditioner.

It should be noted that after controlling the operation of the air conditioner according to the target interval A _target and the duration T, the control method of the present invention further includes: detecting whether the outdoor fan is in reverse state again after an interval of the target time; In the case of inversion state, execute the inversion protection mode again.

Wherein, the interval target time may be determined according to the actual needs of those skilled in the art.

Exemplarily, the interval target time may be 1 min or 2 min.

The control method of the present invention is executed cyclically after the interval of the target time, which can effectively monitor the reversal of the outdoor fan, and reasonably control the air conditioner accordingly, so as to achieve the purpose of protecting the air conditioner.

It can be understood that the reverse rotation protection mode is mainly used to protect the outdoor fan driving motor and the compressor of the air conditioner.

Correspondingly, in an example of the present invention, the operation of the air conditioner is controlled according to the target interval A _target and the duration T, which specifically includes: according to the target interval A _target and the duration T, the start-up of the drive motor of the outdoor fan of the air conditioner is controlled. stop.

In another example of the present invention, controlling the operation of the air conditioner according to the target interval A _target and the duration T specifically includes: controlling the start and stop of the compressor of the air conditioner according to the target interval A _target and the duration T.

In yet another example of the present invention, controlling the operation of the air conditioner according to the target interval A _target and the duration T specifically includes: controlling the frequency of the compressor of the air conditioner according to the target interval A _target and the duration T.

When the reverse rotation protection mode needs to be implemented, the above control method can prevent the outdoor fan drive motor and/or compressor from starting when the outdoor fan is reversed, or limit the frequency of the compressor when the outdoor fan is reversed. operation, so as to achieve the purpose of protecting the driving motor and/or compressor of the outdoor fan and taking into account the effect and efficiency of temperature regulation.

In an example of the present invention, at least two speed range intervals include the first interval A ₁ . According to the target interval A _target and the duration T, the operation of the air conditioner is controlled, including:

S311. When _the target interval A is the first interval _A1 and the duration T does not reach the first time threshold _Tthreshold1 , control the outdoor fan drive motor and compressor of the air conditioner to maintain the initial state;

S312. When _the target interval A is the first interval _A1 and the duration T reaches the first time threshold _Tthreshold1 , control the drive motor of the outdoor fan of the air conditioner to keep off, and control the compressor of the air conditioner to turn on.

Exemplarily, the first interval A ₁ may be >300, or >400, or 350-450, and the duration T may be 0.5 min, or 1 min, or 1.5 min.

Exemplarily, in S312, the compressor of the air conditioner may be controlled to start and run at a fixed frequency, and the fixed frequency may be relatively low, specifically 20HZ to 35HZ.

As an example, the first interval A ₁ is ≥300 and ≤500, and the duration T is 1 min. Assuming that the reverse rotation speed V≥300 and ≤500, but the reverse rotation speed V is not maintained within the range of ≥300 and ≤500 for 1 min, control the outdoor fan drive motor and compressor to maintain the initial state. For example, if the initial state of the driving motor and the compressor of the outdoor fan is off, keep them off. Assuming that the reverse rotation speed V≥300 and ≤500, and the reverse rotation speed V is within the interval range of ≥300 and ≤500 and kept for 1min, then control the drive motor of the outdoor fan to keep off, and control the compressor of the air conditioner open.

In the case where _the target interval A is the first interval _A1 and the duration T has not reached the first time threshold _Tthreshold1 , it indicates that the reverse rotation speed V is not stable. At this time, the outdoor fan drive motor and compressor of the air conditioner are controlled Maintaining the initial state can achieve the purpose of protecting the drive motor and compressor of the outdoor fan. In the case where the target interval A _is the first interval _A1 and the duration T reaches the first time threshold Tthreshold ₁ , it indicates that the reverse rotation speed V is relatively stable. At this time, the drive motor of the outdoor fan of the air conditioner is controlled to keep shutting down. And control the compressor of the air conditioner to start, can achieve the purpose of protecting the driving motor of the outdoor fan and taking into account the effect of temperature adjustment.

In yet another example of the present invention, at least two speed range intervals further include a second interval A ₂ , and the lower limit of the second interval A ₂ is greater than or equal to the upper limit of the first interval A ₁ . According to the target interval A _target and the duration T, the operation of the air conditioner is controlled, including:

S321. When the target interval A _target is the second interval _A2 and the duration T has not reached the second time threshold T _{threshold 2} , control the outdoor fan driving motor of the air conditioner to keep off, and control the compressor of the air conditioner to turn on and run at the first frequency _F1 ;

S322. When the target interval A _target is the second interval _A2 and the duration T reaches the second time threshold T _{threshold 2} , control the outdoor fan drive motor of the air conditioner to keep off, and control the compressor of the air conditioner to turn on and Operates at a second frequency _F2 .

Wherein, the first frequency F ₁ is smaller than the second frequency F ₂ .

Exemplarily, when the first interval A ₁ is ≥300 and ≤500, the second interval A ₂ may be >500 or >550.

Exemplarily, the first frequency F ₁ may be 20HZ to 35HZ.

Exemplarily, the second frequency F ₂ may be 36HZ to 50HZ.

As an example, the first interval _A1 is ≥300 and ≤500, the second interval _A2 is >500, and the duration T is 1 min. Assuming that the reverse rotation speed V>500, but the reverse rotation speed V is not maintained in the range of >500 for 1min, the outdoor fan drive motor is controlled to stop, and the compressor is controlled to run at a frequency of 30HZ.

Assuming that the reverse rotation speed V>500, and the reverse rotation speed V is in the interval range of >500 and remains for 1min, then control the drive motor of the outdoor fan to stop, and control the compressor to run at a frequency of 40HZ.

In the case _where the target interval A is the second interval _A2 and the duration T has not reached the second time threshold T _{threshold 2} , it indicates that the reverse rotation speed V is high and unstable. At this time, the outdoor fan drive motor of the air conditioner is controlled Shutting down and controlling the compressor of the air conditioner to start and run at the first frequency _F1 can achieve the purpose of protecting the driving motor of the outdoor fan and taking into account the effect of temperature regulation. In the case where _the target interval A is the second interval A ₊₂ and the duration T reaches the second time threshold Tthreshold ₂ , it means that the reverse rotation speed V is relatively high and relatively stable. stop, and control the compressor of the air conditioner to start and run at the second frequency _F2 , that is, to increase the frequency compared with the case where the reverse rotation speed V is high and unstable, so as to protect the outdoor fan drive motor and further take into account the temperature regulation The effect is to improve the user experience.

In yet another example of the present invention, at least two speed range intervals further include a third interval A ₃ , and the upper limit of the third interval A ₃ is less than or equal to the lower limit of the first interval A ₁ . Control methods also include:

S400. In the case that _the target interval A is the third interval _A3 , control the air conditioner to execute the start-up procedure.

Exemplarily, in the case that the first interval A ₁ is ≥300 and ≤500, the third interval A ₃ may be <300.

Controlling the air conditioner to execute the start-up procedure may include: controlling the start-up of the drive motor of the outdoor fan and/or controlling the start-up of the compressor.

In the case where _the target interval A is the third interval A ₃ , it means that the reverse rotation speed V is low, and the drive motor of the outdoor fan does not need too much torque to start. At this time, the air conditioner can be controlled to execute the start-up procedure to ensure normal operation.

It can be understood that the number and range of the at least two speed range intervals can be selected and adjusted by those skilled in the art.

In the case where at least two speed range sections include the first section A ₁ , the second section A ₂ and the third section A ₃ , the third section A ₃ is the lowest, the first section A ₁ is in the middle, and the second section A ₂ is the highest. The upper limit value of the third interval _A3 is less than or equal to the lower limit value of the first interval _A1 , and the upper limit value of the first interval _A1 is less than or equal to the lower limit value of the second interval _A2 .

In an example of the present invention, the third interval A ₃ is <300, the first interval A ₁ is ≥300 and ≤500, and the second interval A ₂ is >500.

In yet another example of the present invention, the third interval A ₃ is <250, the first interval A ₁ is ≥250 and ≤450, and the second interval A ₂ is >450.

It can be understood that when determining the target interval A _target in which the reverse rotation speed V of the outdoor fan falls, the reverse rotation speed V can be directly compared with any one of the at least two rotation speed range intervals, or it can be as high as Low or in descending order, the reverse rotation speed V is compared one by one with each of the at least two speed range intervals.

In an example of the present invention, the third interval A ₃ is <300, the first interval A ₁ is ≥300 and ≤500, and the second interval A ₂ is >500. When determining the target interval A _target that the reverse rotation speed V of the outdoor fan falls into, it can be judged first whether the reverse rotation speed V is <300, if <300, the reverse rotation speed V falls into the third interval A ₃ ; if ≥300, further It is judged whether the reverse rotation speed V is >500, if >500, the reverse rotation speed V falls into the second interval A ₂ ; if ≥300 and ≤500, the reverse rotation speed V falls into the first interval A ₁ .

As shown in Figure 2, in terms of the above comparison sequence, the control method of the present invention specifically includes the following steps:

S401, start the air conditioner;

S402. Judging whether the outdoor fan is reversed; if the judgment result is yes, execute S403; if the judgment result is no, execute S407;

S403. Judging that the reverse speed is > 300 rpm; if the judgment result is yes, execute S404; if the judgment result is no, execute S407;

S404. Judging that the reverse speed is > 500 rpm; if the judgment result is yes, execute S405; if the judgment result is no, execute S408;

S405. Judgment duration t≥1min; if the judgment result is yes, execute S406; if the judgment result is no, execute S409;

S406, judging that the motor is not started, and the compressor F2 is running;

S407, judging that the compressor and the fan blades start normally;

S408. Judgment duration t≥1min; if the judgment result is yes, execute S409; if the judgment result is otherwise, execute S410;

S409, judging that the motor is not started, and the compressor F1 is running;

S410, judging that the compressor and the motor are not started;

Wherein, after executing S407, S410, and S409, re-detect at intervals of 1 minute and judge whether the outdoor fan is reversed again.

The present invention also provides a control device for an air conditioner. The control device includes: a reverse rotation protection module. Protection mode; the reverse protection mode includes: in at least two speed range intervals, determining the target interval A _target where the reverse speed V of the outdoor fan falls; monitoring the state of the reverse speed V falling within the target interval A _target Duration T; According to the target interval A _target and duration T, the operation of the air conditioner is controlled.

The present invention also provides an air conditioner. The air conditioner includes a processor, a memory, and a program or instruction stored in the memory and operable on the processor. When the program or instruction is executed by the processor, any of the above technical solutions can be realized. The steps of the control method.

The present invention also provides a computer-readable storage medium, the computer-readable storage medium includes a computer program, and when the computer program runs, the steps of the control method according to any one of the above technical solutions are implemented. The readable storage medium here may include a computer readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

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, so the protection scope of the present invention should be based on the scope defined in the claims.

Claims (10)

1. A control method for an air conditioner, characterized in that the control method comprises: When the air conditioner is started, when the outdoor fan of the air conditioner is in the reverse state, execute the reverse protection mode; The reverse protection mode includes: In at least two rotation speed range intervals, determine a target interval A _target in which the reverse rotation speed V of the outdoor fan falls; monitoring the duration T of the state in which the reverse rotation speed V remains within the target interval A _target ; According to the target interval A _target and the duration T, the operation of the air conditioner is controlled. 2. The control method according to claim 1, wherein the controlling the operation of the air conditioner according to the target interval A _target and the duration T includes: According to the target interval A _target and the duration T, control the start and stop of the outdoor fan driving motor of the air conditioner; and/or The start and stop of the compressor of the air conditioner is controlled according to the target interval A _target and the duration T; and/or The frequency of the compressor of the air conditioner is controlled according to the target interval A _target and the duration T. 3. The control method according to claim 1, characterized in that, The at least two speed range intervals include a first interval A ₁ ; The controlling the operation of the air conditioner according to the target interval A _target and the duration T includes: In the case that the target interval A _target is the first interval _A1 and the duration T has not reached the first time threshold _Tthreshold1 , control the outdoor fan drive motor and compressor of the air conditioner to maintain the initial state ; When the target interval A _target is the first interval _A1 and the duration T reaches the first time threshold _Tthreshold1 , control the outdoor fan drive motor of the air conditioner to keep off, and control all The compressor of the air conditioner is turned on. 4. The control method according to claim 3, characterized in that, The at least two rotation speed range intervals further include a second interval A ₂ , the lower limit of the second interval A ₂ is greater than or equal to the upper limit of the first interval A ₁ ; The controlling the operation of the air conditioner according to the target interval A _target and the duration T further includes: When the target interval A _target is the second interval _A2 and the duration T has not reached the second time threshold _Tthreshold2 , control the outdoor fan drive motor of the air conditioner to keep off, and control The compressor of the air conditioner is turned on and operates at a first frequency _F1 ; When the target interval A _target is the second interval _A2 and the duration T reaches the second time threshold Tthreshold ₂ , control the outdoor fan drive motor of the air conditioner to keep off, and control all The compressor of the air conditioner is turned on and runs with the second frequency _F2 ; Wherein, the first frequency F ₁ is smaller than the second frequency F ₂ . 5. The control method according to claim 3, characterized in that, The at least two speed range intervals further include a third interval A ₃ , the upper limit of the third interval A ₃ is less than or equal to the lower limit of the first interval A ₁ ; The control method also includes: In the case that the target interval A _{is targeted} at the third interval _A3 , the air conditioner is controlled to execute a start-up procedure. 6. The control method according to any one of claims 1 to 5, wherein the control method further comprises: When the air conditioner is started, if the outdoor fan of the air conditioner is in a non-reversing state, the air conditioner is controlled to execute a start-up procedure. 7. The control method according to any one of claims 1 to 5, characterized in that, after the operation of the air conditioner is controlled according to the target interval A _target and the duration T, the Control methods also include: After a target time interval, it is detected again whether the outdoor fan is in the reverse state; When the outdoor fan is in the reverse rotation state, the reverse rotation protection mode is executed again. 8. A control device for an air conditioner, characterized in that the control device comprises: A reverse protection module, when the air conditioner is started, the reverse protection module is used to execute the reverse protection mode when the outdoor fan of the air conditioner is in the reverse state; The reverse protection mode includes: In at least two rotation speed range intervals, determine a target interval A _target in which the reverse rotation speed V of the outdoor fan falls; monitoring the duration T of the state in which the reverse rotation speed V remains within the target interval A _target ; According to the target interval A _target and the duration T, the operation of the air conditioner is controlled. 9. An air conditioner, characterized in that the air conditioner includes a processor, a memory, and a program or instruction stored on the memory and operable on the processor, and the program or instruction is processed by the processor implement the steps of the control method according to any one of claims 1 to 7 when the controller is executed. 10. A computer-readable storage medium, characterized in that the computer-readable storage medium comprises a computer program, and the computer program implements the steps of the control method according to any one of claims 1 to 7 when running.

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