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

Abstract

The present invention discloses an air conditioner control method, device, air conditioner and computer-readable storage medium. After the air conditioner is turned on and operates in the cooling mode, the air conditioner control method first determines whether there is a need to suppress refrigerant abnormal noise according to the wind speed parameter of the indoor fan, and then enters the control logic for suppressing refrigerant abnormal noise when the wind speed parameter meets the preset wind speed condition. The applicable noise suppression method is determined according to the actual electronic expansion valve configuration of the air conditioner, and finally, at least the opening degree of the electronic expansion valve and / or the target operating frequency of the compressor are adjusted according to the corresponding noise suppression method, so as to reduce or even eliminate the refrigerant abnormal noise at the startup stage of the air conditioner, and at the same time improve the user experience of the air conditioner product.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and particularly to an air conditioner control method, device, air conditioner and computer-readable storage medium. Background Art

[0002] In existing air conditioner products, most have high-frequency startup and compressor protection functions. Such functions require that the compressor operates at the lowest operating frequency for a certain period of time after startup, and the compressor will not run to the target frequency until the end of the period.

[0003] When the user starts the machine in the low wind gear, the outdoor compressor still operates at the lowest operating frequency. At the same time, the outdoor fan rotates at a high speed, the outdoor heat exchange is good, and the refrigerant flow rate is relatively large. At this time, the indoor fan rotates at a low speed and the indoor heat exchange is poor. Since the temperature of the indoor evaporator is high during the startup stage, the throttled refrigerant will evaporate violently, the pressure difference before and after the indoor distributor becomes larger, and large refrigerant sounds will be generated in both the indoor evaporator and the distributor, which affects the user experience. Summary of the Invention

[0004] The main purpose of the present invention is to provide an air conditioner control method, device, air conditioner and computer-readable storage medium, aiming to solve the technical problem of how to reduce the refrigerant abnormal noise during the startup stage of the air conditioner.

[0005] To achieve the above object, the present invention provides an air conditioner control method, which includes:

[0006] After the air conditioner starts and operates in the cooling mode, obtain the wind gear parameter of the indoor fan in the air conditioner;

[0007] If the wind gear parameter meets the preset wind gear condition, determine the noise suppression method according to the configuration status of the electronic expansion valve of the air conditioner, where the noise suppression method is at least set based on the opening degree of the electronic expansion valve and / or the target operating frequency of the compressor in the air conditioner;

[0008] Perform noise suppression adjustment on the air conditioner according to the noise suppression method until the air conditioner meets the preset stop condition.

[0009] Optionally, the step of if the wind gear parameter meets the preset wind gear condition, determine the noise suppression method according to the configuration status of the electronic expansion valve of the air conditioner includes:

[0010] If the wind gear parameter meets the preset wind gear condition, determine whether an electronic expansion valve is provided in the air conditioner;

[0011] If so, determine that the noise suppression method is set based on the opening degree of the electronic expansion valve and / or the target operating frequency;

[0012] The steps of performing noise suppression adjustment on the air conditioner according to the described noise suppression method include:

[0013] Obtain the evaporator temperature of the air conditioner at this time and the refrigerant temperature after throttling;

[0014] When the difference between the evaporator temperature and the refrigerant temperature is greater than a preset temperature difference threshold, increase the opening degree of the electronic expansion valve and / or decrease the target operating frequency.

[0015] Optionally, if the target operating frequency is decreased, after the step of increasing the opening degree of the electronic expansion valve and / or decreasing the target operating frequency when the difference between the evaporator temperature and the refrigerant temperature is greater than a preset temperature difference threshold, the following steps are further included:

[0016] Control the air conditioner to operate at the decreased target operating frequency, and determine whether the actual operating frequency of the compressor at this time is greater than a preset frequency threshold;

[0017] If so, adjust the rotational speed of the indoor blower to a preset value, and based on the preset value, return to execute the step of obtaining the evaporator temperature of the air conditioner and the refrigerant temperature after throttling until the air conditioner meets the preset stop condition.

[0018] Optionally, after the step of determining whether there is an electronic expansion valve in the air conditioner, the following steps are further included:

[0019] If not, determine that the noise suppression method is set based on the target operating frequency and the rotational speed of the outdoor blower in the air conditioner;

[0020] Decrease the target operating frequency and the rotational speed of the outdoor blower.

[0021] Optionally, after the step of obtaining the evaporator temperature of the air conditioner and the refrigerant temperature after throttling according to the first noise suppression method, the following steps are further included:

[0022] Determine whether the difference between the evaporator temperature and the refrigerant temperature is greater than a preset temperature difference threshold;

[0023] If not, execute the step of decreasing the target operating frequency and the rotational speed of the outdoor blower.

[0024] Optionally, the step of until the air conditioner meets the preset stop condition includes:

[0025] Until the air conditioner switches from the cooling mode to other modes, or when the boot operation duration of the air conditioner this time reaches a preset duration threshold, it is determined that the air conditioner meets the preset stop condition.

[0026] Optionally, before the step of if the windshield parameter meets the preset windshield condition, the following steps are further included:

[0027] Determine whether the windshield parameter meets the preset windshield condition;

[0028] The step of determining whether the windshield parameter meets the preset windshield condition includes:

[0029] Determine whether the windshield parameter is not greater than the preset intermediate parameter value;

[0030] If so, determine that the windshield parameter meets the preset windshield condition;

[0031] If not, determine that the windshield parameter does not meet the preset windshield condition.

[0032] In addition, to achieve the above object, the present invention also provides an air conditioner control device, and the air conditioner control device includes:

[0033] A windshield parameter acquisition module, configured to acquire the windshield parameter of the indoor blower in the air conditioner after the air conditioner is started and operated in a cooling mode;

[0034] A noise suppression method determination module, configured to determine a noise suppression method according to the configuration status of the electronic expansion valve of the air conditioner if the windshield parameter meets the preset windshield condition, wherein the noise suppression method is at least set based on the opening degree of the electronic expansion valve and / or the target operating frequency of the compressor in the air conditioner;

[0035] A noise suppression adjustment execution module, configured to perform noise suppression adjustment on the air conditioner according to the noise suppression method until the air conditioner meets the preset stop condition.

[0036] Optionally, the noise suppression method determination module includes:

[0037] An air conditioner setting judgment unit, configured to judge whether an electronic expansion valve is provided in the air conditioner if the windshield parameter meets the preset windshield condition;

[0038] A first method determination unit, configured to determine that the noise suppression method is set based on the opening degree of the electronic expansion valve and / or the target operating frequency if so;

[0039] The noise suppression adjustment execution module includes:

[0040] A target temperature acquisition unit, configured to acquire the evaporator temperature and the refrigerant temperature after throttling of the air conditioner at this time;

[0041] A first method adjustment unit, configured to increase the opening degree of the electronic expansion valve and / or decrease the target operating frequency when the difference between the evaporator temperature and the refrigerant temperature is greater than a preset temperature difference threshold.

[0042] Optionally, if the target operating frequency decreases, the noise suppression adjustment execution module includes:

[0043] An adjustment parameter operation unit, configured to control the air conditioner to operate at a reduced target operating frequency, and determine whether the actual operating frequency of the compressor at this time is greater than a preset frequency threshold;

[0044] A windshield parameter adjustment unit, configured to, if so, adjust the rotation speed of the indoor fan to a preset value, and based on the preset value, return to execute the step of obtaining the evaporator temperature of the air conditioner and the temperature of the throttled refrigerant until the air conditioner meets a preset stop condition.

[0045] Optionally, the noise suppression method determination module includes:

[0046] A second method determination unit, configured to, if not, determine that the noise suppression method is set based on the target operating frequency and the rotation speed of the outdoor fan in the air conditioner;

[0047] A second method adjustment unit, configured to reduce the target operating frequency and the rotation speed of the outdoor fan.

[0048] Optionally, the noise suppression adjustment execution module includes:

[0049] A temperature difference judgment unit, configured to judge whether the difference between the evaporator temperature and the refrigerant temperature is greater than a preset temperature difference threshold;

[0050] A second method execution unit, configured to, if not, execute the step of reducing the target operating frequency and the rotation speed of the outdoor fan.

[0051] Optionally, the noise suppression adjustment execution module includes:

[0052] A stop condition judgment unit, configured to determine that the air conditioner meets the preset stop condition until the air conditioner switches from the refrigeration mode to other modes, or the boot operation duration of the air conditioner this time reaches a preset duration threshold.

[0053] Optionally, the air conditioner control device further includes:

[0054] A windshield condition judgment module, configured to judge whether the windshield parameters meet preset windshield conditions;

[0055] The windshield condition judgment module includes:

[0056] An intermediate parameter judgment unit, configured to judge whether the windshield parameters are not greater than a preset intermediate parameter value;

[0057] An affirmative condition determination unit, configured to, if so, determine that the windshield parameters meet the preset windshield conditions;

[0058] A negative condition determination unit, configured to determine that the windshield parameter does not meet the preset windshield condition if the answer is no.

[0059] In addition, to achieve the above object, the present invention further provides an air conditioner, which includes: a memory, a processor, and an air conditioner control program stored on the memory and executable on the processor. When the air conditioner control program is executed by the processor, the steps of the above air conditioner control method are implemented.

[0060] In addition, to achieve the above object, the present invention further provides a computer-readable storage medium, on which an air conditioner control program is stored. When the air conditioner control program is executed by a processor, the steps of the above air conditioner control method are implemented.

[0061] In addition, to achieve the above object, the present invention further provides a computer program product, including a computer program. When the computer program is executed by a processor, the steps of the above air conditioner control method are implemented.

[0062] The present invention provides an air conditioner control method, device, air conditioner, and computer-readable storage medium. After the air conditioner starts up and operates in cooling mode, the air conditioner control method first determines whether there is a need to suppress refrigerant abnormal noise based on the windshield parameter of the indoor fan, and then enters the control logic for suppressing refrigerant abnormal noise when the windshield parameter meets the preset windshield condition. The applicable noise suppression method is determined according to the actual electronic expansion valve configuration of the air conditioner, and finally, at least the opening degree of the electronic expansion valve and / or the target operating frequency of the compressor are adjusted according to the corresponding noise suppression method, so as to reduce or even eliminate the refrigerant abnormal noise in the startup stage of the air conditioner, solve the technical problem of how to reduce the refrigerant abnormal noise in the startup stage of the air conditioner, and improve the user experience of the air conditioner product at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] Figure 1 is a schematic structural diagram of an air conditioner in the hardware operating environment related to the embodiment solution of the present invention;

[0064] Figure 2 is a schematic flowchart of the first embodiment of the air conditioner control method of the present invention;

[0065] Figure 3 is a schematic flowchart of a specific embodiment in the second embodiment of the air conditioner control method of the present invention;

[0066] Figure 4 is a schematic diagram of the functional modules of the air conditioner control device of the present invention.

[0067] The realization, functional characteristics, and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0068] It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention.

[0069] In existing air conditioner products, most have high-frequency startup and compressor protection functions. Such functions require the compressor to operate at the lowest operating frequency for a certain period of time after startup, and it is not until the end of the time period that the compressor will operate at the target frequency.

[0070] When the user starts the machine in the low wind speed gear, the outdoor compressor still operates at the lowest operating frequency. At the same time, the outdoor fan rotates at a high speed, the outdoor heat exchange is good, and the refrigerant flow rate is relatively large. At this time, the indoor fan rotates at a low speed and the indoor heat exchange is poor. Since the temperature of the indoor evaporator is relatively high during the startup stage, the throttled refrigerant will evaporate violently, the pressure difference before and after the indoor unit distributor becomes larger, and large refrigerant sounds will be generated in both the indoor evaporator and the distributor, which affects the user experience.

[0071] To solve the above technical problems, the present invention provides an air conditioner control method, that is, after the air conditioner starts up and operates in the cooling mode, first determine whether the air conditioner has a need to suppress refrigerant abnormal noise according to the wind speed parameter of the indoor fan, and then enter the control logic for suppressing refrigerant abnormal noise when the wind speed parameter meets the preset wind speed condition, determine the applicable noise suppression method according to the actual electronic expansion valve configuration of the air conditioner, and finally adjust at least the opening degree of the electronic expansion valve and / or the target operating frequency of the compressor according to the corresponding noise suppression method, so as to reduce or even eliminate the refrigerant abnormal noise during the startup stage of the air conditioner, solve the technical problem of how to reduce the refrigerant abnormal noise during the startup stage of the air conditioner, and at the same time improve the user experience of the air conditioner product.

[0072] As Figure 1 shown, Figure 1 is a schematic structural diagram of an air conditioner of the hardware operating environment involved in the embodiment of the present invention.

[0073] As Figure 1 shown, the air conditioner may include: a processor 1001, such as a CPU, a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Among them, the communication bus 1002 is used to realize the connection and communication between these components. Optionally, the user interface 1003 may include a standard wired interface and a wireless interface. Optionally, the network interface 1004 may include a standard wired interface and a wireless interface (such as a WI-FI interface). The memory 1005 may be a high-speed RAM memory or a stable memory (non-volatile memory). Optionally, the memory 1005 may also be a memory for storing the air conditioner independent of the aforementioned processor 1001.

[0074] Optionally, the air conditioner may further include an RF (Radio Frequency) circuit, sensors, etc. Among them, the sensors include, for example, infrared sensors, barometric pressure sensors, temperature sensors, humidity sensors, and other sensors. Of course, the air conditioner may also be configured with other sensors such as gyroscopes, barometers, hygrometers, thermometers, and infrared sensors, which will not be elaborated here.

[0075] Those skilled in the art can understand that Figure 1 the structure of the air conditioner shown in

[0076] does not limit the air conditioner, and it may include more or fewer components than shown in the figure, or combine some components, or have different component arrangements. Figure 1 As shown in

[0077] In Figure 1 the air conditioner shown, the network interface 1004 is mainly used to connect to the background server for data communication with the background server; the user interface 1003 is mainly used to connect to the client (user side) for data communication with the client; and the processor 1001 can be used to call the air conditioner control program stored in the memory 1005 and execute the operations in the following air conditioner control method.

[0078] Based on the above hardware structure, various embodiments of the air conditioner control method of the present invention are proposed.

[0079] Referring to Figure 2 , Figure 2 is a schematic flow chart of the first embodiment of the air conditioner control method.

[0080] The first embodiment of the present invention provides an air conditioner control method, which includes the following steps:

[0081] Step S10, after the air conditioner starts running in the cooling mode, obtain the wind speed parameter of the indoor fan in the air conditioner;

[0082] In this embodiment, the present invention is applied to an air conditioner. The wind speed parameter is used to characterize the magnitude of the indoor fan speed, usually in the form of a percentage. Generally, the higher the wind speed percentage, the greater the speed.

[0083] Specifically, after the air conditioner is started up, it first determines whether the operating mode of this startup is the cooling mode. If the operating mode of this startup is not the cooling mode, it means that the probability of the air conditioner having refrigerant noise currently is very small. Therefore, there is no need for noise suppression, and it does not enter the subsequent control logic, but directly controls the air conditioner with the normal control logic. If the operating mode of this startup is the cooling mode, the air conditioner enters the subsequent control logic. The air conditioner first needs to obtain the wind speed parameter of the indoor fan when starting up in the cooling mode. As a specific implementation manner, the air conditioner may pre-store the initial wind speed parameters in different modes, and different modes may correspond to the same or different initial wind speed parameters. For example, when the air conditioner starts up and operates in the cooling mode, it obtains the initial wind speed parameter corresponding to the cooling mode pre-stored and operates according to this initial wind speed parameter.

[0084] In addition, after the air conditioner is started up, it also needs to continuously record the duration of this startup.

[0085] Step S20, if the wind speed parameter meets the preset wind speed condition, determine the noise suppression method according to the configuration status of the electronic expansion valve of the air conditioner, where the noise suppression method is at least set based on the opening degree of the electronic expansion valve and / or the target operating frequency of the compressor in the air conditioner;

[0086] In this embodiment, the preset wind speed condition can be specifically set as: the wind speed parameter is not greater than a certain threshold, or the value of the wind speed parameter is between two different thresholds, etc. The configuration status of the electronic expansion valve may include: there is an electronic expansion valve in the air conditioner, or there is no electronic expansion valve in the air conditioner. Further, more specific discrimination can be made for the case where there is an electronic expansion valve, such as determining whether the electronic expansion valve can be used normally. The noise suppression method refers to the method of suppressing the refrigerant abnormal noise that may occur in the startup stage when the air conditioner starts up and operates in the cooling mode, and is usually achieved by adjusting one or some parameters in the air conditioner. When there is an electronic expansion valve in the air conditioner and the electronic expansion valve can be used normally, the opening degree of the electronic expansion valve can be adjusted, or the opening degree of the electronic expansion valve and other parameters can be adjusted together; when there is no electronic expansion valve in the air conditioner, or the existing electronic expansion valve cannot be used normally, the target operating frequency of the compressor can be adjusted, or the target operating frequency and other parameters can be adjusted together. For example, in addition to the opening degree of the electronic expansion valve and the target operating frequency, other parameters such as the rotation speed of the outdoor fan can also be adjusted.

[0087] Specifically, when the air conditioner is turned on and operating in the cooling mode, and the windshield parameter at startup meets the preset windshield condition, the setting of the electronic expansion valve of the air conditioner is determined. If there is a normally usable electronic expansion valve in the air conditioner, the noise suppression method corresponding to the situation with an electronic expansion valve is selected; if there is no electronic expansion valve in the air conditioner, the noise suppression method corresponding to the situation without an electronic expansion valve is selected, so as to perform targeted noise suppression adjustment according to the actual configuration of the air conditioner.

[0088] Step S30, perform noise suppression adjustment on the air conditioner according to the noise suppression method until the air conditioner meets the preset stop condition.

[0089] In this embodiment, the preset stop condition can be specifically set as follows: when the startup operation duration corresponding to this time of the air conditioner reaches a certain duration threshold. For example, if the duration threshold is two minutes, then after the air conditioner is turned on and operates in the cooling model, it operates according to the above noise suppression control logic for two minutes, which is regarded as meeting the stop condition. At this time, the control logic can be exited and the conventional control logic of the cooling mode can be entered;

[0090] Or within two minutes after the air conditioner is turned on and operates in the cooling mode, if the air conditioner receives a mode switching instruction and switches from the cooling mode to other modes in response to this instruction, it is also regarded as meeting the stop condition. At this time, the control logic can also be exited and the conventional control logic corresponding to other modes can be entered.

[0091] Specifically, after the air conditioner determines the noise suppression method corresponding to the actual situation, it adjusts the corresponding parameters according to this noise suppression method, operates according to the adjusted parameters, and when the operation duration of this time reaches the preset duration threshold, exits the current noise suppression control logic, restores the preset rotation speed of each windshield of the indoor unit, and enters the established control logic corresponding to the conventional cooling mode.

[0092] In this embodiment, after the air conditioner is turned on and operates in the cooling mode, first, it is determined whether there is a need to suppress the abnormal noise of the refrigerant according to the windshield parameter of the indoor fan. Then, when the windshield parameter meets the preset windshield condition, it enters the control logic for suppressing the abnormal noise of the refrigerant, determines the applicable noise suppression method according to the actual electronic expansion valve configuration of the air conditioner, and finally adjusts at least the opening degree of the electronic expansion valve and / or the target operating frequency of the compressor according to the corresponding noise suppression method, so as to reduce or even eliminate the abnormal noise of the refrigerant in the startup stage of the air conditioner, solve the technical problem of how to reduce the abnormal noise of the refrigerant in the startup stage of the air conditioner, and at the same time improve the user experience of the air conditioner product.

[0093] Further, based on the above Figure 2 shown in the first embodiment, a second embodiment of the air conditioner control method of the present invention is proposed. In this embodiment, step S20 includes:

[0094] Step S211: If the windshield parameter meets the preset windshield condition, determine whether an electronic expansion valve is provided in the air conditioner;

[0095] Step S212: If so, determine that the noise suppression method is set based on the opening degree of the electronic expansion valve and / or the target operating frequency;

[0096] Step S30 includes:

[0097] Step S311: Obtain the evaporator temperature and the refrigerant temperature after throttling of the air conditioner at this time;

[0098] Step S312: When the difference between the evaporator temperature and the refrigerant temperature is greater than the preset temperature difference threshold, increase the opening degree of the electronic expansion valve and / or decrease the target operating frequency.

[0099] In this embodiment, if the air conditioner determines that the windshield parameter at startup meets the preset windshield condition, it further determines whether an electronic expansion valve is provided in the air conditioner. If an electronic expansion valve is provided in the air conditioner (by default, it can be used normally), the noise suppression method corresponding to the situation with an electronic expansion valve can be selected from the pre-stored noise suppression strategies. Hereinafter, it is called the first noise suppression method for the sake of explanation. When the air conditioner determines the first noise suppression method, it needs to obtain the evaporator temperature T2 and the refrigerant temperature T after throttling at this time, where the evaporator temperature T2 specifically refers to the temperature in the middle of the evaporator. The air conditioner compares T2 with T to obtain the temperature difference between the two, and determines whether the temperature difference is greater than the preset temperature difference threshold, and this temperature difference threshold can be flexibly set according to the actual situation. If the air conditioner determines that the temperature threshold is greater than the preset temperature difference threshold, it continues to adjust the parameters according to the first noise suppression method. The specific implementation method of the first noise suppression method can be: increasing the opening degree of the electronic expansion valve; or decreasing the target operating frequency of the compressor; or both increasing the opening degree of the electronic expansion valve and decreasing the target operating frequency. The specific way to increase the opening degree of the electronic expansion valve can be: the increased opening degree of the electronic expansion valve takes a value in a certain high percentage range (for example, 70%-100%) of the full scale.

[0100] Further, if the target operating frequency decreases, after step S312, it further includes:

[0101] Step S313: Control the air conditioner to operate at the reduced target operating frequency, and determine whether the actual operating frequency of the compressor at this time is greater than the preset frequency threshold;

[0102] Step S314: If so, adjust the rotational speed of the indoor fan to a preset value, and based on the preset value, return to execute the step of obtaining the evaporator temperature and the refrigerant temperature after throttling of the air conditioner until the air conditioner meets the preset stop condition.

[0103] In this embodiment, after the air conditioner adjusts at least the target operating frequency, it determines whether the actual operating frequency of the compressor is greater than a preset frequency threshold. Here, the frequency threshold is determined based on the compressor displacement and the system capacity segment of the air conditioner. For example, when the air conditioner with a system capacity segment of 3 horsepower is equipped with a compressor with a displacement of 240, the frequency threshold can be set to 40. If the air conditioner determines that the actual operating frequency at this time is not greater than the preset frequency threshold, it returns to execute step S311; if the air conditioner determines that the actual operating frequency at this time is greater than the preset frequency threshold, it adjusts the rotational speed of the indoor fan of the air conditioner at this time. Specifically, if it is assumed that the rotational speed of the fan when the original indoor fan speed setting parameter is 1% is m, and the rotational speed when it is 100% is n, then the preset value can specifically be taken as (m + n) / 2. It should be noted that the speed setting parameter of 1% corresponds to the minimum rotational speed of the indoor fan, and the speed setting parameter of 100% corresponds to the maximum rotational speed of the indoor fan. Both the maximum rotational speed and the minimum rotational speed here are pre-set values existing in the air conditioner. For example, if the minimum rotational speed m is 700 and the maximum rotational speed n is 1500, then when the user adjusts the speed setting parameter from 1% to 100%, the rotational speed of the indoor fan correspondingly increases from 700 to 1500. In this step, if the air conditioner determines that the above-mentioned actual operating frequency is greater than the preset frequency threshold, the air conditioner adjusts the minimum rotational speed corresponding to the speed setting parameter of 1% to (m + n) / 2, that is, 1100, indicating that the adjustment range of the indoor fan after adjustment changes from the original [700, 1500] to [1100, 1500].

[0104] As another specific implementation manner, it is also possible to, after the air conditioner adjusts at least the target operating frequency and operates for a period of time according to all the adjusted parameters, then determine whether the actual operating frequency at this time is greater than the preset frequency threshold, and the operating time can be flexibly set according to the actual situation.

[0105] This embodiment further sets a first noise suppression method for air conditioners with an electronic expansion valve, enabling such air conditioners to effectively suppress refrigerant abnormal noises in the startup stage of the cooling mode according to the first noise suppression method.

[0106] Furthermore, after step S211, it further includes:

[0107] Step S221, if not, then determine that the noise suppression method is set based on the target operating frequency and the rotational speed of the outdoor fan in the air conditioner;

[0108] Step S222, reduce the target operating frequency and the rotational speed of the outdoor fan.

[0109] In this embodiment, the noise suppression method corresponding to the case where the air conditioner does not have an electronic expansion valve is simply referred to as the second noise suppression method for subsequent description. When the air conditioner determines that there is no electronic expansion valve, it selects the second noise suppression method from the pre-stored noise suppression strategies, and at the same time adjusts the target operating frequency and the rotational speed of the outdoor fan of the air conditioner according to the second noise suppression method. Moreover, the reduction amplitude of the target operating frequency in the first noise suppression method and the second noise suppression method may be the same or different.

[0110] In addition, as another embodiment, in addition to adjusting the target operating frequency and the rotational speed of the outdoor fan together, a noise suppression adjustment can also be performed on the air conditioner without an electronic expansion valve by only reducing the target operating frequency of the compressor or only reducing the rotational speed of the outdoor fan.

[0111] This embodiment further enables such an air conditioner to effectively suppress the refrigerant abnormal noise in the startup stage of the cooling mode according to the second noise suppression method by setting the second noise suppression method for the air conditioner without an electronic expansion valve.

[0112] Further, after step S311, it further includes:

[0113] Step S321, determining whether the difference between the evaporator temperature and the refrigerant temperature is greater than a preset temperature difference threshold;

[0114] Step S322, if not, then execute the step of reducing the target operating frequency and the rotational speed of the outdoor fan.

[0115] In this embodiment, specifically, after the air conditioner with an electronic expansion valve determines the first noise suppression method, it needs to obtain the evaporator temperature and the refrigerant temperature after throttling at this time, and determine whether the difference between the two is greater than the preset temperature difference threshold. If the difference is not greater than the preset temperature difference threshold, it means that the air conditioner at this time is not suitable for the first noise suppression method, so the above-mentioned second noise suppression method is adopted to reduce the target operating frequency and / or the rotational speed of the outdoor fan.

[0116] As a specific embodiment, as Figure 3 shown. Assume that the original indoor fan speed at 1% wind speed is m and the speed at 100% wind speed is n.

[0117] After the air conditioner is turned on, record the startup time t1, and consider the current time as t.

[0118] Determine whether t - t1 < a and it is in the cooling mode at this time. If not, exit this control logic and operate according to other preset programs; if so, detect whether the indoor fan wind speed is less than or equal to 50%. If not, return to the previous decision box.

[0119] If the indoor fan speed setting is less than or equal to 50%, it is necessary to determine whether there is an electronic expansion valve in the system. If not, the target frequency of the compressor is reduced and the speed of the outdoor unit is decreased; if there is, it is necessary to determine whether the difference between the evaporation temperature T2 and the refrigerant temperature T after throttling is greater than b. If it is greater, the opening of the electronic expansion valve is increased and the target operating frequency of the compressor is reduced. If the difference is less than b, the target frequency of the compressor and the speed of the outdoor fan are reduced.

[0120] In both of the above cases, it will enter the determination of whether the actual target frequency of the compressor is greater than x. If the actual target operating frequency of the compressor is less than or equal to x, it will return to the initial determination box; if the actual target operating frequency of the compressor is greater than x, the preset speed of 1% is adjusted to (m + n) / 2, and then it returns to the initial determination box. It will not exit this control logic until t - t1 is greater than a or the cooling mode is exited, and the preset speeds of each speed setting of the indoor unit are restored and the operation is carried out according to the original established program. It should be noted that the restoration of the preset speeds of each speed setting of the indoor unit here means that the minimum speed corresponding to the speed setting parameter of 1% at this time is restored from (m + n) / 2 to the initial m. For example, using the set values in the above embodiment, the minimum speed is restored from 1100 to 700. After restoration, the speed adjustment range of the indoor fan is still [700, 1500].

[0121] Specifically, among the above parameters, when the cooling mode of the floor-standing air conditioner is turned on, the following reference values can be taken: a can take a value of 2 min; if m and n are for cross-flow fans, they can take values of about 700 and 1500 respectively; b can take a value of 7 °C; the value of x is determined according to the compressor displacement and the system capacity section. When a 3-horsepower air conditioner is equipped with a 240-displacement compressor, x can take a reference value of 40. Regarding the requirement in the control logic for the opening of the electronic expansion valve to increase, the increased target value can take 70% - 100% of the full range.

[0122] In this embodiment, when the difference between the detected evaporator temperature and the refrigerant temperature is not greater than the preset temperature difference threshold, the second noise suppression method is adopted, so as to more carefully divide the noise suppression logic that the air conditioner needs to adopt after entering the first noise suppression method, and improve the integrity of the overall noise suppression logic.

[0123] Further, based on the above second embodiment, a third embodiment of the air conditioner control method of the present invention is proposed. In this embodiment, the step of until the air conditioner meets the preset stop condition includes:

[0124] Step A1, until the air conditioner switches from the cooling mode to other modes, or the running duration of the air conditioner in this startup reaches the preset duration threshold, it is determined that the air conditioner meets the preset stop condition.

[0125] In this embodiment, the preset stop condition can be specifically set based on the boot operation duration and the mode switching situation. Specifically, a duration threshold needs to be set in advance, and then the timing starts from when the air conditioner starts running in the cooling mode. If the air conditioner does not perform mode switching within this duration threshold, it continues to run according to the above noise suppression control logic until the boot operation duration reaches the duration threshold, and then exits the noise suppression control logic and switches to the established cooling control logic; if the air conditioner performs mode switching within this duration threshold, switching from the original cooling mode to other modes, even if the boot operation duration has not reached the duration threshold at this time, it is also necessary to exit the above noise suppression control logic and switch to the established control logic corresponding to other modes.

[0126] This embodiment further sets the stop condition based on the boot operation duration and the mode situation, enabling the air conditioner in the noise suppression mode to exit the noise suppression logic at an appropriate time, ensuring the normal operation of the air conditioner.

[0127] Further, before step S20, it further includes:

[0128] Step B1, determining whether the windshield parameter meets the preset windshield condition;

[0129] Step B1 includes:

[0130] Step B11, determining whether the windshield parameter is not greater than the preset intermediate parameter value;

[0131] Step B12, if so, determining that the windshield parameter meets the preset windshield condition;

[0132] Step B13, if not, determining that the windshield parameter does not meet the preset windshield condition.

[0133] In this embodiment, since the refrigerant sound will be more obvious if the windshield set at startup is below the middle level, the preset intermediate parameter value can specifically be taken as 50%. The specific determination method when the air conditioner determines whether the windshield parameter meets the preset windshield condition is: determining whether the windshield parameter at this time is less than or equal to 50%. If the windshield parameter at this time is not greater than 50%, it is determined that the preset windshield condition is met and the subsequent noise suppression control logic can be entered; if the windshield parameter at this time is greater than 50%, it indicates that the refrigerant sound of the air conditioner may not be obvious at this time and there is no need to suppress the refrigerant sound through the noise suppression logic, so it is determined that the preset windshield condition is not met.

[0134] This embodiment further sets the windshield condition based on the intermediate value parameter, thereby more accurately determining whether the air conditioner has a noise suppression requirement.

[0135] As Figure 4 shown, the present invention also provides an air conditioner control device, and the air conditioner control device includes:

[0136] The windshield parameter acquisition module 10 is used to acquire the windshield parameter of the indoor fan in the air conditioner after the air conditioner starts and operates in the cooling mode;

[0137] The noise suppression method determination module 20 is used to determine the noise suppression method according to the configuration status of the electronic expansion valve of the air conditioner if the windshield parameter meets the preset windshield condition, where the noise suppression method is at least set based on the opening degree of the electronic expansion valve and / or the target operating frequency of the compressor in the air conditioner;

[0138] The noise suppression adjustment execution module 30 is used to perform noise suppression adjustment on the air conditioner according to the noise suppression method until the air conditioner meets the preset stop condition.

[0139] The present invention also provides an air conditioner.

[0140] The air conditioner includes a processor, a memory, and an air conditioner control program stored on the memory and executable on the processor. When the air conditioner control program is executed by the processor, the steps of the air conditioner control method described above are implemented.

[0141] Wherein, the method implemented when the air conditioner control program is executed can refer to the various embodiments of the air conditioner control method of the present invention, and will not be elaborated here.

[0142] The present invention also provides a computer-readable storage medium.

[0143] An air conditioner control program is stored on the computer-readable storage medium of the present invention. When the air conditioner control program is executed by a processor, the steps of the air conditioner control method described above are implemented.

[0144] Wherein, the method implemented when the air conditioner control program is executed can refer to the various embodiments of the air conditioner control method of the present invention, and will not be elaborated here.

[0145] The present invention also provides a computer program product, including a computer program, and when the computer program is executed by a processor, the steps of the air conditioner control method described above are implemented.

[0146] Wherein, the method implemented when the computer program is executed can refer to the various embodiments of the air conditioner control method of the present invention, and will not be elaborated here.

[0147] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity / operation / object from another entity / operation / object, and do not necessarily require or imply any actual relationship or order between these entities / operations / objects; terms such as "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or system including the element. For the device embodiments, since they are basically similar to the method embodiments, they are described relatively simply, and for the relevant parts, reference may be made to the partial description of the method embodiments. The device embodiments described above are only illustrative, and the units described as separate components may or may not be physically separated. Some or all of the modules in the middle can be selected according to actual needs to achieve the purpose of the solution of the present invention. A person of ordinary skill in the art can understand and implement it without creative work.

[0148] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0149] Through the description of the above embodiments, those skilled in the art can clearly understand that the above embodiment methods can be implemented by means of software plus a necessary general hardware platform. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium as described above (such as ROM / RAM, magnetic disk, optical disk), and includes several instructions to enable an air conditioner to execute the methods described in various embodiments of the present invention.

[0150] The above are only partial embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, are equally included in the patent protection scope of the present invention.

Claims

1. An air conditioner control method, characterized in that, The air conditioner control method includes: After the air conditioner starts and operates in the cooling mode, obtain the wind speed parameter of the indoor fan in the air conditioner; If the wind speed parameter meets the preset wind speed condition, determine the noise suppression method according to the configuration status of the electronic expansion valve of the air conditioner, where the noise suppression method includes a first noise suppression method corresponding to the case where there is an electronic expansion valve and a second noise suppression method corresponding to the case where there is no electronic expansion valve; the first noise suppression method is set based on the opening degree of the electronic expansion valve and the target operating frequency of the compressor in the air conditioner; the second noise suppression method is set based on the target operating frequency and the rotational speed of the outdoor fan in the air conditioner; Perform noise suppression adjustment on the air conditioner according to the noise suppression method until the air conditioner meets the preset stop condition; The step of "if the wind speed parameter meets the preset wind speed condition, determine the noise suppression method according to the configuration status of the electronic expansion valve of the air conditioner" includes: If the wind speed parameter meets the preset wind speed condition, determine whether there is an electronic expansion valve in the air conditioner; If so, determine that the noise suppression method is set based on the opening degree of the electronic expansion valve and the target operating frequency; If not, determine that the noise suppression method is set based on the target operating frequency and the rotational speed of the outdoor fan in the air conditioner; The step of performing noise suppression adjustment on the air conditioner according to the first noise suppression method includes: Obtain the evaporator temperature and the refrigerant temperature after throttling of the air conditioner at this time; When the difference between the evaporator temperature and the refrigerant temperature is greater than the preset temperature difference threshold, increase the opening degree of the electronic expansion valve and decrease the target operating frequency according to the first noise suppression method; When the difference between the evaporator temperature and the refrigerant temperature is not greater than the preset temperature difference threshold, it means that the air conditioner at this time is not suitable for the first noise suppression method, and the second noise suppression method is used to decrease the target operating frequency and the rotational speed of the outdoor fan.

2. The air conditioner control method according to claim 1, wherein If the target operating frequency decreases, after the step of "when the difference between the evaporator temperature and the refrigerant temperature is greater than the preset temperature difference threshold, increase the opening degree of the electronic expansion valve and decrease the target operating frequency" according to the first noise suppression method, it further includes: Control the air conditioner to operate at the reduced target operating frequency, and determine whether the actual operating frequency of the compressor at this time is greater than the preset frequency threshold; If so, adjust the rotational speed of the indoor fan to the preset value, and based on the preset value, return to execute the step of obtaining the evaporator temperature and the refrigerant temperature after throttling of the air conditioner until the air conditioner meets the preset stop condition.

3. The air conditioner control method according to claim 1, wherein The step of "until the air conditioner meets the preset stop condition" includes: Until the air conditioner switches from the cooling mode to other modes, or the duration of this startup operation of the air conditioner reaches the preset duration threshold, it is determined that the air conditioner meets the preset stop condition.

4. The air conditioner control method according to any one of claims 1-3, characterized in that, Before the step of "if the wind speed parameter meets the preset wind speed condition", it further includes: Determine whether the wind speed parameter meets the preset wind speed condition; The step of "determine whether the wind speed parameter meets the preset wind speed condition" includes: Determine whether the wind speed parameter is not greater than the preset intermediate parameter value; If so, determine that the wind speed parameter meets the preset wind speed condition; If not, determine that the wind speed parameter does not meet the preset wind speed condition.

5. An air conditioner control device, characterized in that, The air conditioner control device includes: a windshield parameter acquisition module, configured to acquire the windshield parameter of the indoor blower in the air conditioner after the air conditioner is started and operated in the cooling mode; a noise suppression method determination module, configured to determine a noise suppression method according to the configuration status of the electronic expansion valve of the air conditioner if the windshield parameter meets a preset windshield condition, where the noise suppression method includes a first noise suppression method corresponding to the case where an electronic expansion valve is provided and a second noise suppression method corresponding to the case where no electronic expansion valve is provided; the first noise suppression method is set based on the opening degree of the electronic expansion valve and the target operating frequency of the compressor in the air conditioner; the second noise suppression method is set based on the target operating frequency and the rotational speed of the outdoor blower in the air conditioner; a noise suppression adjustment execution module, configured to perform noise suppression adjustment on the air conditioner according to the noise suppression method until the air conditioner meets a preset stop condition; The step of determining a noise suppression method according to the configuration status of the electronic expansion valve of the air conditioner if the windshield parameter meets a preset windshield condition includes: if the windshield parameter meets a preset windshield condition, determining whether an electronic expansion valve is provided in the air conditioner; if so, determining that the noise suppression method is set based on the opening degree of the electronic expansion valve and the target operating frequency; if not, determining that the noise suppression method is set based on the target operating frequency and the rotational speed of the outdoor blower in the air conditioner; Performing noise suppression adjustment on the air conditioner according to the first noise suppression method includes: acquiring the evaporator temperature and the refrigerant temperature after throttling of the air conditioner at this time; when the difference between the evaporator temperature and the refrigerant temperature is greater than a preset temperature difference threshold, increasing the opening degree of the electronic expansion valve and decreasing the target operating frequency according to the first noise suppression method; when the difference between the evaporator temperature and the refrigerant temperature is not greater than a preset temperature difference threshold, it indicates that the air conditioner at this time is not applicable to the first noise suppression method, and the second noise suppression method is adopted to decrease the target operating frequency and the rotational speed of the outdoor blower.

6. An air conditioner, characterized in that, The air conditioner includes: a memory, a processor, and an air conditioner control program stored on the memory and executable on the processor. When the air conditioner control program is executed by the processor, the steps of the air conditioner control method according to any one of claims 1 to 4 are implemented.

7. A computer-readable storage medium, characterized in that, An air conditioner control program is stored on the computer-readable storage medium. When the air conditioner control program is executed by the processor, the steps of the air conditioner control method according to any one of claims 1 to 4 are implemented.

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