Air conditioner control method, controller, air conditioner and storage medium

Abstract

The embodiment of the invention provides a control method of an air conditioner, a controller, the air conditioner and a storage medium, and the control method comprises the following steps: receiving a set air outlet temperature gear and a set air speed grade corresponding to a soft temperature function instruction, and obtaining a coil pipe temperature of an indoor unit heat exchanger; the maximum limiting frequency of a compressor is determined according to the set air speed grade; and the maximum limiting frequency is adjusted according to the set air outlet temperature gear and the coil pipe temperature. According to the embodiment of the invention, the maximum limiting frequency of the compressor is continuously adjusted by limiting the operation frequency of the compressor and judging the temperature of the coil pipe of the heat exchanger of the indoor unit of the air conditioner, so that the air outlet temperature of the air conditioner is controllable, the soft-temperature direct blowing function is realized, and the somatosensory comfort of a user is improved.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioners, and in particular to a control method, a controller, an air conditioner and a storage medium for an air conditioner. Background Art

[0002] In the related art, for variable frequency air conditioners operating in cooling mode, in scenarios such as high-frequency startup for rapid cooling, adjustment of the overall cooling effect of the room, and energy-saving frequency reduction, the air outlet temperature of the air conditioner is often in a fluctuating state in order to achieve the purpose of cooling and energy saving. In some scenarios where long-term direct blowing is required, such as kitchens and doormen, and where direct blowing cannot be avoided, such as small space apartments, the fluctuation of the air outlet temperature is an uncomfortable experience and cannot meet the user's need for comfortable direct blowing. Summary of the invention

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a control method, a controller, an air conditioner and a storage medium for an air conditioner, aiming to achieve the goal of controlling the air outlet temperature of the air conditioner, thereby realizing soft temperature direct blowing and improving the user's body comfort.

[0004] In a first aspect, an embodiment of the present application provides a method for controlling an air conditioner, comprising:

[0005] Receive the set air outlet temperature level and set wind speed level corresponding to the soft temperature function instruction, and obtain the coil temperature of the indoor unit heat exchanger;

[0006] Determining the maximum limiting frequency of the compressor according to the set wind speed level;

[0007] The maximum limit frequency is adjusted according to the set air outlet temperature level and the coil temperature.

[0008] According to some embodiments of the present application, the control method further includes:

[0009] Get the cooling set temperature in cooling mode;

[0010] The target air outlet temperature of the air conditioner is determined according to the cooling setting temperature and a preset compensation temperature, wherein the preset compensation temperature is a positive number.

[0011] According to some embodiments of the present application, the control method further includes:

[0012] Get the preset minimum allowable wind speed;

[0013] The target outlet wind speed of the air conditioner is determined according to the minimum allowable wind speed and the set wind speed level, wherein the target outlet wind speed is obtained by proportionally increasing the minimum allowable wind speed.

[0014] According to some embodiments of the present application, determining the maximum limiting frequency of the compressor according to the set wind speed level includes:

[0015] Obtaining a lower frequency limit and an upper frequency limit of the compressor;

[0016] The maximum limiting frequency of the compressor is determined according to the set wind speed level, the lower limit frequency and the upper limit frequency.

[0017] According to some embodiments of the present application, the lower frequency limit is determined by the model of the air conditioner; the upper frequency limit is obtained by the following steps:

[0018] Get the outdoor ambient temperature;

[0019] An upper frequency limit of the compressor is determined according to the outdoor ambient temperature and a preset temperature.

[0020] According to some embodiments of the present application, determining the upper limit frequency of the compressor according to the outdoor ambient temperature and a preset temperature includes one of the following:

[0021] When the outdoor ambient temperature is greater than the preset temperature, setting the upper limit frequency to a first frequency value;

[0022] When the outdoor ambient temperature is less than or equal to the preset temperature, the upper frequency limit is set to a second frequency value, wherein the second frequency value is less than the first frequency value.

[0023] According to some embodiments of the present application, determining the maximum limit frequency of the compressor according to the set wind speed level, the lower limit frequency and the upper limit frequency includes:

[0024] Inputting the set wind speed level, the lower limit frequency and the upper limit frequency into a frequency calculation model, and outputting the maximum limit frequency of the compressor;

[0025] Among them, the frequency calculation model includes a first input variable and a variable combination, the first input variable is used to be assigned the lower limit frequency, the variable combination is the product of the second input variable and the third input variable, the second input variable is used to be assigned the ratio of the set wind speed level and the total number of preset levels, the third input variable is used to be assigned the difference between the upper limit frequency and the lower limit frequency, and the sum of the first input variable and the variable combination is the maximum limit frequency of the compressor.

[0026] According to some embodiments of the present application, the adjusting the maximum limit frequency according to the set air outlet temperature level and the coil temperature includes:

[0027] Determining a first temperature range according to the set air outlet temperature level and the first compensation interval;

[0028] When the coil temperature is within the first temperature range, the maximum limit frequency is increased based on a first adjustment step, wherein the first adjustment step is positively correlated with the coil temperature.

[0029] According to some embodiments of the present application, the adjusting the maximum limit frequency according to the set air outlet temperature level and the coil temperature further includes:

[0030] Determining a second temperature range according to the set air outlet temperature level and the second compensation interval, wherein an upper limit value of the second compensation interval is less than or equal to a lower limit value of the first compensation interval;

[0031] When the coil temperature is within the second temperature range, the maximum limit frequency is maintained unchanged.

[0032] According to some embodiments of the present application, the adjusting the maximum limit frequency according to the set air outlet temperature level and the coil temperature further includes:

[0033] Determining a third temperature range according to the set air outlet temperature level and a third compensation interval, wherein an upper limit value of the third compensation interval is less than or equal to a lower limit value of the second compensation interval;

[0034] When the coil temperature is within the third temperature range, obtaining an actual operating frequency of the compressor;

[0035] Filtering out the minimum value between the maximum limit frequency and the actual operating frequency as a reference frequency;

[0036] The reference frequency is reduced based on a third adjustment step, and the adjusted reference frequency is used as a new maximum limit frequency, wherein the third adjustment step is negatively correlated with the coil temperature.

[0037] In a second aspect, an embodiment of the present application provides a controller comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the air conditioner control method as described in the first aspect above when running the computer program.

[0038] In a third aspect, an embodiment of the present application provides an air conditioner, comprising a controller as described in the second aspect above.

[0039] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are used to execute the air conditioner control method as described in the first aspect above.

[0040] According to the technical solution of the embodiment of the present application, at least the following beneficial effects are achieved: first, the embodiment of the present application receives the set air outlet temperature gear and the set wind speed level corresponding to the soft temperature function instruction, and obtains the coil temperature of the indoor unit heat exchanger; then, the embodiment of the present application determines the maximum limit frequency of the compressor according to the set wind speed level; then, the embodiment of the present application adjusts the maximum limit frequency according to the set air outlet temperature gear and the coil temperature. The embodiment of the present application limits the operating frequency of the compressor and continuously adjusts the maximum limit frequency of the compressor by judging the coil temperature of the indoor unit heat exchanger of the air conditioner, thereby achieving the goal of controllable air outlet temperature of the air conditioner, thereby realizing the soft temperature direct blowing function and improving the user's body comfort.

[0041] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The accompanying drawings are used to provide further understanding of the technical solution of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present application and do not constitute a limitation on the technical solution of the present application.

[0043] Figure 1 is a flow chart of a method for controlling an air conditioner provided by an embodiment of the present application;

[0044] Figure 2 is a flow chart of a method for controlling an air conditioner provided by another embodiment of the present application;

[0045] Figure 3 is a flow chart of a method for controlling an air conditioner provided by another embodiment of the present application;

[0046] Figure 4 is a flow chart of a method for controlling an air conditioner provided by another embodiment of the present application;

[0047] Figure 5 is a flow chart of a method for controlling an air conditioner provided by another embodiment of the present application;

[0048] Figure 6 is a flow chart of a method for controlling an air conditioner provided by another embodiment of the present application;

[0049] Figure 7 is a flow chart of a method for controlling an air conditioner provided by another embodiment of the present application;

[0050] Figure 8 is a flow chart of a method for controlling an air conditioner provided by another embodiment of the present application;

[0051] Fig. 9is a flow chart of a method for controlling an air conditioner provided by another embodiment of the present application;

[0052] Fig.10 is a flow chart of a method for controlling an air conditioner provided by another embodiment of the present application;

[0053] Fig.11 is a flow chart of a method for controlling an air conditioner provided by another embodiment of the present application;

[0054] Fig.12 is an overall flow chart of a method for controlling an air conditioner provided by an embodiment of the present application;

[0055] Fig.13 is a relationship diagram between the maximum limit frequency and the set wind speed level provided by an embodiment of the present application;

[0056] Fig.14 It is a schematic diagram of adjusting the maximum limiting frequency at different coil temperatures provided by an embodiment of the present application;

[0057] Fig.15 It is a schematic diagram of a controller for executing a method for controlling an air conditioner provided in one embodiment of the present application. DETAILED DESCRIPTION

[0058] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0059] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0060] In the description of this application, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0061] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0062] In some cases, for variable frequency air conditioners running in cooling mode, in scenarios such as high-frequency startup for rapid cooling, adjustment of the overall cooling effect of the room, and energy-saving frequency reduction, the air outlet temperature of the air conditioner is often in a fluctuating state in order to achieve the purpose of cooling and energy saving. In some scenarios where direct blowing is required for a long time, such as kitchens and doormen, and where direct blowing cannot be avoided, such as small space apartments, the fluctuation of the air outlet temperature is an uncomfortable experience and cannot meet the user's need for comfortable direct blowing.

[0063] Based on the above situation, the embodiments of the present application propose a control method, controller, air conditioner and computer-readable storage medium for an air conditioner, aiming to achieve the goal of controllable air outlet temperature of the air conditioner, thereby realizing soft and warm direct blowing and improving user comfort.

[0064] The following further describes various embodiments of the air conditioner control method of the present application in conjunction with the accompanying drawings.

[0065] like Figure 1 As shown, Figure 1 1 is a flow chart of a method for controlling an air conditioner provided by an embodiment of the present application. The method for controlling an air conditioner may include but is not limited to step S101, step S102 and step S103.

[0066] Step S101, receiving the set air outlet temperature level and the set wind speed level corresponding to the soft temperature function instruction, and obtaining the coil temperature of the indoor unit heat exchanger;

[0067] Step S102, determining the maximum limiting frequency of the compressor according to the set wind speed level;

[0068] Step S103: adjusting the maximum limit frequency according to the set air outlet temperature level and coil temperature.

[0069] In one embodiment, after receiving the soft temperature function instruction triggered by the user, the air conditioner will also receive the set wind speed level and the set air outlet temperature level set by the user; then, the air conditioner will determine the maximum limit frequency of the compressor corresponding to the set wind speed level based on the set wind speed level to avoid the frequency of the subsequent compressor during operation being higher than the maximum limit frequency; then, the air conditioner will also obtain the coil temperature of the indoor unit heat exchanger, and compare the coil temperature with the set air outlet temperature level set by the user, and finally adjust the maximum limit frequency of the compressor according to the comparison result.

[0070] It is worth noting that the embodiment of the present application can limit the operating frequency of the compressor by setting the wind speed level, and continuously adjust the maximum limit frequency of the compressor by judging the coil temperature of the heat exchanger of the air conditioner indoor unit, so as to achieve the goal of controllable air outlet temperature of the air conditioner, thereby realizing the soft temperature direct blowing function and improving the user's physical comfort.

[0071] It should be noted that the above-mentioned soft temperature function instruction can be generated by the user pressing the remote control, or by the user remotely controlling the mobile phone, or by the user through voice. The embodiment of the present application does not specifically limit the generation method of the soft temperature function instruction.

[0072] In addition, it should be noted that the above-mentioned set air outlet temperature level may refer to a set air outlet temperature range, that is, different set air outlet temperature levels may correspond to different set air outlet temperature ranges.

[0073] In addition, it should be noted that the above-mentioned wind speed levels can be divided into high, medium and low levels, and can also be divided into level 1, level 2, ..., level n. The embodiment of the present application does not specifically limit the setting of the wind speed level.

[0074] In addition, it should be noted that the method for obtaining the coil temperature of the indoor unit heat exchanger mentioned above may be to add a temperature sensor to the heat exchanger coil of the indoor unit and use the temperature sensor to detect the coil temperature.

[0075] It is worth noting that regarding the relationship between the set wind speed level and the maximum limit frequency, in one embodiment, there is a positive correlation between the set wind speed level and the maximum limit frequency, that is, the higher the set wind speed level, the higher the maximum limit frequency; the lower the set wind speed level, the lower the maximum limit frequency.

[0076] In addition, it is worth noting that the methods for adjusting the maximum limiting frequency mainly include the following: increasing the maximum limiting frequency of the compressor, maintaining the maximum limiting frequency of the compressor, and reducing the maximum limiting frequency of the compressor.

[0077] In addition, if Figure 2 As shown, Figure 2 FIG. 2 is a flow chart of a method for controlling an air conditioner provided by another embodiment of the present application. The method for controlling an air conditioner may also include but is not limited to step S201 and step S202.

[0078] Step S201, obtaining the cooling setting temperature in the cooling mode;

[0079] Step S202: determining a target air outlet temperature of the air conditioner according to the cooling setting temperature and a preset compensation temperature, wherein the preset compensation temperature is a positive number.

[0080] In one embodiment, after receiving the soft temperature function instruction triggered by the user, the air conditioner will also obtain the cooling set temperature in the cooling mode, and at the same time obtain the preset compensation temperature, and perform compensation calculation on the cooling set temperature based on the preset compensation temperature. For example, the preset compensation temperature and the cooling set temperature can be added to obtain the target air outlet temperature of the air conditioner.

[0081] It should be noted that the preset compensation temperature can be a positive number, that is, the target air outlet temperature obtained after compensation will be higher than the cooling set temperature, thereby preventing the air outlet temperature from being too low. The preset compensation temperature can be 0.5°C, 1°C, or other temperature values. The embodiment of the present application does not specifically limit the value of the preset compensation temperature.

[0082] It should be noted that the cooling set temperature in the above-mentioned cooling mode can be the temperature currently set by the user, or the temperature set by the air conditioner when it historically executes the cooling mode, that is, the historical set temperature. The embodiment of the present application does not make any specific limitations on this.

[0083] In addition, if Figure 3 As shown, Figure 3 FIG. 1 is a flow chart of a method for controlling an air conditioner provided by another embodiment of the present application. The method for controlling an air conditioner may also include but is not limited to step S301 and step S302.

[0084] Step S301, obtaining a preset minimum allowable wind speed;

[0085] Step S302: determining a target outlet wind speed of the air conditioner according to the minimum allowable wind speed and the set wind speed level, wherein the target outlet wind speed is obtained by increasing the minimum allowable wind speed in proportion.

[0086] In one embodiment, a minimum allowable wind speed will be set under the soft temperature function, and then the target air outlet speed of the air conditioner will be calculated in combination with the set wind speed level set by the user. Specifically, the embodiment of the present application needs to increase the minimum allowable wind speed in proportion to obtain the target air outlet speed, thereby preventing the heat exchanger temperature from being too low when the wind speed is low and affecting the air outlet temperature.

[0087] It can be understood that the above-mentioned minimum allowable wind speed can be pre-set by the system, and the embodiment of the present application does not specifically limit the value of the minimum allowable wind speed.

[0088] In addition, if Figure 4 As shown, Figure 4The flowchart of the control method of the air conditioner provided by another embodiment of the present application is as follows: Regarding the above step S102 of determining the maximum limiting frequency of the compressor according to the set wind speed level, it may include but is not limited to step S401 and step S402.

[0089] Step S401, obtaining the lower limit frequency and the upper limit frequency of the compressor;

[0090] Step S402: determine the maximum limit frequency of the compressor according to the set wind speed level, the lower limit frequency and the upper limit frequency.

[0091] In one embodiment, the method for determining the maximum limit frequency is as follows: first, the upper limit frequency and the lower limit frequency of the compressor are obtained; then, the maximum limit frequency of the compressor is calculated by combining the upper limit frequency, the lower limit frequency and the set wind speed level.

[0092] It should be noted that the above lower limit frequency may be fixed, and may be determined by the model of the air conditioner, and specifically by the cooling capacity of the air conditioner.

[0093] In addition, it should be noted that the upper limit frequency mentioned above can be obtained by Figure 5 The steps shown are determined and may include but are not limited to step S501 and step S502.

[0094] Step S501, obtaining the outdoor ambient temperature;

[0095] Step S502: Determine the upper frequency limit of the compressor according to the outdoor ambient temperature and the preset temperature.

[0096] In one embodiment, the method for obtaining the upper limit frequency of the compressor is as follows: first, the embodiment of the present application can detect the outdoor ambient temperature through a temperature sensor and obtain a preset temperature; then, the outdoor ambient temperature is compared with the preset temperature to obtain a comparison result; finally, the upper limit frequency of the compressor is determined based on the comparison result.

[0097] It can be understood that the above-mentioned preset temperature can be pre-set by the system, and the embodiment of the present application does not specifically limit the value of the preset temperature.

[0098] It should be noted that the above step S502 in which the upper frequency limit of the compressor is determined according to the outdoor ambient temperature and the preset temperature may include but is not limited to: Figure 6 or Figure 7 The two implementations shown are as follows:

[0099] like Figure 6 As shown, Figure 6This is a flow chart of a method for controlling an air conditioner provided by another embodiment of the present application. The above step S502 may include but is not limited to step S601 and step S602.

[0100] Step S601: When the outdoor ambient temperature is greater than a preset temperature;

[0101] Step S602: Set the upper frequency limit to a first frequency value.

[0102] like Figure 7 As shown, Figure 7 This is a flow chart of a method for controlling an air conditioner provided by another embodiment of the present application. The above step S502 may include but is not limited to step S701 and step S702.

[0103] Step S701: When the outdoor ambient temperature is less than or equal to a preset temperature;

[0104] Step S702: setting the upper frequency limit to a second frequency value, wherein the second frequency value is smaller than the first frequency value.

[0105] In one embodiment, the upper limit frequency may be the indoor unit wind speed frequency limit parameter value. The embodiment of the present application can detect the outdoor ambient temperature through a temperature sensor and obtain a preset temperature; if the value of the outdoor ambient temperature is greater than the value of the preset temperature, then the embodiment of the present application sets the upper limit frequency to a first frequency value; if the value of the outdoor ambient temperature is less than or equal to the value of the preset temperature, then the embodiment of the present application sets the upper limit frequency to a second frequency value.

[0106] It should be noted that, regarding the comparison between the first frequency value and the second frequency value, the first frequency value is greater than the second frequency value. That is, when the outdoor ambient temperature is high, in order to meet the high-temperature refrigeration capacity, the upper limit frequency of the compressor needs to be increased synchronously; when the outdoor ambient temperature is low, high-temperature refrigeration is not required, then the upper limit frequency of the compressor can be appropriately reduced.

[0107] In addition, regarding the numerical values ​​of the first frequency value and the second frequency value mentioned above, the embodiment of the present application does not specifically limit this.

[0108] In addition, if Figure 8 As shown, Figure 8 The flowchart of the control method of the air conditioner provided by another embodiment of the present application is as follows: The above step S402 in which the maximum limit frequency of the compressor is determined according to the set wind speed level, the lower limit frequency and the upper limit frequency may include but is not limited to step S801 and step S802.

[0109] Step S801, input the set wind speed level, lower frequency limit and upper frequency limit into the frequency calculation model;

[0110] Step S802, obtaining the maximum limiting frequency of the compressor through the frequency calculation model output;

[0111] In one embodiment, the frequency calculation model includes a first input variable and a variable combination, the first input variable is used to be assigned a lower limit frequency, the variable combination is the product of a second input variable and a third input variable, the second input variable is used to be assigned a ratio of a set wind speed level and a total number of preset levels, the third input variable is used to be assigned a difference between an upper limit frequency and a lower limit frequency, and the sum of the first input variable and the variable combination is the maximum limit frequency of the compressor.

[0112] It should be noted that the adjustment of the maximum frequency limit according to the set air outlet temperature level and the coil temperature in the above step S103 may include but is not limited to: Figures 9 to 11 The three implementations shown are as follows:

[0113] like Fig. 9 As shown, Fig. 9 This is a flow chart of a method for controlling an air conditioner provided by another embodiment of the present application. The above step S103 may include but is not limited to step S901 and step S902.

[0114] Step S901, determining a first temperature range according to a set air outlet temperature level and a first compensation interval;

[0115] Step S902: when the coil temperature is within the first temperature range, increase the maximum limit frequency based on the first adjustment step, wherein the first adjustment step is positively correlated with the coil temperature.

[0116] In one embodiment, after receiving the set air outlet temperature level set by the user, the air conditioner will also obtain a first compensation interval, and perform compensation calculation on the set air outlet temperature level based on the first compensation interval, thereby obtaining a first temperature range; then, the air conditioner will compare the coil temperature with the first temperature range, and if the coil temperature is within the first temperature range, the maximum limit frequency of the compressor will be increased.

[0117] Among them, in one embodiment, the interval upper limit value and the interval lower limit value of the first compensation interval are both positive values, then correspondingly, the temperature values ​​in the first temperature range will be higher than the temperature values ​​of the set air outlet temperature level, then, if the coil temperature is within the first temperature range, it can be considered that the coil temperature is higher than the set air outlet temperature level to a certain extent.

[0118] It should be noted that the embodiment of the present application can increase the maximum limiting frequency of the compressor based on the first adjustment step. For example, when the first adjustment step is 2 Hz, the embodiment of the present application can gradually increase the maximum limiting frequency of the compressor with a step size of 2 Hz. Alternatively, when the first adjustment step is 1 Hz, the embodiment of the present application can gradually increase the maximum limiting frequency of the compressor with a step size of 1 Hz.

[0119] In addition, it should be noted that if the coil temperature is higher, the value of the first adjustment step will be larger, that is, there is a positive correlation between the first adjustment step and the coil temperature.

[0120] It should be noted that the embodiment of the present application can increase the maximum limit frequency of the compressor based on the first adjustment interval. For example, when the first adjustment interval is 30 seconds, the embodiment of the present application can gradually increase the maximum limit frequency of the compressor every 30 seconds. Alternatively, when the first adjustment step is 1 minute, the embodiment of the present application can gradually increase the maximum limit frequency of the compressor every 1 minute.

[0121] In addition, it should be noted that, if the coil temperature is higher, the first adjustment interval is shorter, that is, there is a negative correlation between the first adjustment interval and the coil temperature.

[0122] like Fig.10 As shown, Fig.10 This is a flow chart of a method for controlling an air conditioner provided by another embodiment of the present application. The above step S103 may include but is not limited to step S1001 and step S1002.

[0123] Step S1001: determining a second temperature range according to the set air outlet temperature level and the second compensation interval, wherein the upper limit of the second compensation interval is less than or equal to the lower limit of the first compensation interval;

[0124] Step S1002: When the coil temperature is within the second temperature range, the maximum limit frequency is maintained unchanged.

[0125] In one embodiment, after receiving the set air outlet temperature level set by the user, the air conditioner will also obtain a second compensation interval, and perform compensation calculation on the set air outlet temperature level according to the second compensation interval, thereby obtaining a second temperature range; then, the air conditioner will compare the coil temperature with the second temperature range, and if the coil temperature is within the second temperature range, the maximum limit frequency of the compressor will remain unchanged.

[0126] In one embodiment, the upper limit of the second compensation interval is a positive value, and the lower limit is a negative value. Correspondingly, the set air outlet temperature level will fall within the second temperature range. If the coil temperature is within the second temperature range, it can be considered that the coil temperature is close to the set air outlet temperature level.

[0127] like Fig.11 As shown, Fig.11 This is a flow chart of a method for controlling an air conditioner provided by another embodiment of the present application. The above step S103 may include but is not limited to step S1101, step S1102, step S1103 and step S1104.

[0128] Step S1101: determining a third temperature range according to the set air outlet temperature level and the third compensation interval, wherein the upper limit of the third compensation interval is less than or equal to the lower limit of the second compensation interval;

[0129] Step S1102: when the coil temperature is within the third temperature range, obtaining the actual operating frequency of the compressor;

[0130] Step S1103, filtering out the minimum value between the maximum limit frequency and the actual operating frequency as the reference frequency;

[0131] Step S1104: lower the reference frequency based on the third adjustment step, and use the adjusted reference frequency as the new maximum limit frequency, wherein the third adjustment step is negatively correlated with the coil temperature.

[0132] In one embodiment, after receiving the set air outlet temperature level set by the user, the air conditioner will also obtain a third compensation interval, and perform compensation calculation on the set air outlet temperature level according to the third compensation interval, thereby obtaining a third temperature range; then, the air conditioner will compare the coil temperature with the third temperature range, and if the coil temperature is within the third temperature range, the maximum limit frequency of the compressor will be reduced.

[0133] Among them, in one embodiment, the interval upper limit value and the interval lower limit value of the third compensation interval are both negative values, then correspondingly, the temperature values ​​in the third temperature range will be lower than the temperature values ​​of the set air outlet temperature level, then, if the coil temperature is within the third temperature range, it can be considered that the coil temperature is lower than the set air outlet temperature level to a certain extent.

[0134] It should be noted that the embodiment of the present application can reduce the maximum limiting frequency of the compressor based on the third adjustment step. For example, when the third adjustment step is 2 Hz, the embodiment of the present application can gradually reduce the maximum limiting frequency of the compressor with a step size of 2 Hz. Alternatively, when the third adjustment step is 1 Hz, the embodiment of the present application can gradually reduce the maximum limiting frequency of the compressor with a step size of 1 Hz.

[0135] In addition, it should be noted that, if the coil temperature is lower, the value of the third adjustment step is larger, that is, there is a negative correlation between the third adjustment step and the coil temperature.

[0136] It should be noted that the embodiment of the present application can reduce the maximum limit frequency of the compressor based on the third adjustment interval. For example, when the third adjustment interval is 30 seconds, the embodiment of the present application can gradually reduce the maximum limit frequency of the compressor every 30 seconds. Alternatively, when the third adjustment step is 1 minute, the embodiment of the present application can gradually reduce the maximum limit frequency of the compressor every 1 minute.

[0137] In addition, it should be noted that, if the coil temperature is lower, the third adjustment interval is shorter, that is, there is a positive correlation between the third adjustment interval and the coil temperature.

[0138] Based on the control methods of the air conditioner in the above-mentioned embodiments, overall embodiments of the control method of the air conditioner of the present application are respectively proposed below.

[0139] like Fig.12 As shown, Fig.12 It is an overall flow chart of a method for controlling an air conditioner provided in one embodiment of the present application, including but not limited to steps S1201 to S1211.

[0140] Step S1201, soft temperature function is turned on;

[0141] Step S1202, soft temperature range selection;

[0142] Step S1203, controlling the target temperature of the air conditioner;

[0143] Step S1204, controlling the wind speed of the air conditioner;

[0144] Step S1205, controlling the frequency of the air conditioner;

[0145] Step S1206, calculating the initial frequency limit of the compressor;

[0146] Step S1207, coil temperature determination, when the coil temperature is within the first temperature range, execute step S1208; when the coil temperature is within the second temperature range, execute step S1209; when the coil temperature is within the third temperature range, execute step S1210;

[0147] Step S1208, increasing the maximum limit frequency;

[0148] Step S1209, keeping the maximum limit frequency unchanged;

[0149] Step S1210, obtaining the minimum value of the actual operating frequency and the maximum limit frequency;

[0150] Step S1211: reduce the minimum value obtained above and use it as a new maximum limit frequency.

[0151] In one embodiment, the air conditioner control logic of the embodiment of the present application is mainly to achieve the goal of controllable air outlet temperature of the air conditioner and achieve the purpose of soft temperature direct blowing by controlling the target temperature of the air conditioner, fan speed, compressor frequency limit, and adjusting the frequency control time and amplitude by judging the coil temperature of the heat exchanger of the indoor unit of the air conditioner. The specific control method is described as follows:

[0152] 1. Users can turn on the soft temperature function through the remote control and APP remote control;

[0153] 2. Users can set the soft air outlet temperature level Tsc_WarmTemp through the remote control and APP remote control, where the level corresponds to the temperature range;

[0154] 3. Target temperature control: Tsc = Tsc` + preset compensation temperature, where Tsc` is the cooling set temperature, that is, positive compensation is performed on the basis of the cooling set temperature compensation to prevent the air outlet temperature from being too low; the preset compensation temperature can be 0.5°C or other temperature values;

[0155] 4. The soft temperature function has a minimum wind speed of NoDirectFan_Speed. The user needs to increase the wind speed level in proportion to this. This is mainly used to prevent the heat exchanger temperature from being too low when the wind speed is low, affecting the outlet air temperature.

[0156] 5. The calculation method of the maximum limiting frequency of the soft temperature compressor is as follows:

[0157]

[0158] Among them, UJX NOW Indicates the current wind speed level, which is calculated based on the lower limit of the soft temperature wind speed NoDirectFan_Speed. When the wind speed level is greater than 100%, UJX NOW =100%;

[0159] Among them, Fre_WarmwindFanmin is the lower limit frequency of the compressor, and its value is fixed, which can be determined according to the cooling capacity of the model; Fre_WarmwindFanmax is the upper limit frequency of the compressor, which is the parameter value of the indoor wind speed frequency limit. Among them, the specific control frequency of Fre_WarmwindFanmax is calculated as follows:

[0160] a. When the outdoor ambient temperature T4>T4_TempThres℃, the value of Fre_WarmwindFanmax is GA_FCoolMinFan;

[0161] b. When the outdoor ambient temperature T4 ≤ T4_TempThres℃, the value of Fre_WarmwindFanmax is GA_FCoolOneFan;

[0162] The above-mentioned T4_TempThres is the above-mentioned preset temperature, which can be 40°C or other temperatures to ensure the cooling effect, wherein GA_FCoolMinFan is greater than GA_FCoolOneFan; GA_FCoolMinFan is the above-mentioned first frequency value, and GA_FCoolOneFan is the above-mentioned second frequency value.

[0163] Among them, the calculation diagram of the maximum limiting frequency of the compressor can be as follows: Fig.13 As shown by Fig.13 It can be seen that the greater the wind speed level, the higher the maximum limiting frequency of the compressor.

[0164] On the basis of the above, the maximum limiting frequency and actual operating frequency of the compressor are also related to the coil temperature T2 of the heat exchanger. The specific calculation method is as follows:

[0165] 1. When T2>Tsc_WarmTemp+2.5℃, the maximum frequency limit Fre_WarmwindFanlimit increases by 2HZ every Time_Fast seconds, that is, Fre_WarmwindFanlimit=Fre_WarmwindFanlimit+2Hz;

[0166] 2. When Tsc_WarmTemp+2.5≥T2>Tsc_WarmTemp+1.5℃, the maximum frequency limit Fre_WarmwindFanlimit increases by 1HZ every Time_Mid seconds, that is, Fre_WarmwindFanlimit=Fre_WarmwindFanlimit+1Hz;

[0167] 3. When Tsc_WarmTemp+1.5≥T2>Tsc_WarmTemp+0.5℃, the maximum frequency limit Fre_WarmwindFanlimit increases by 0.5HZ every Time_Mid seconds, that is, Fre_WarmwindFanlimit=Fre_WarmwindFanlimit+0.5Hz;

[0168] 4. When Tsc_WarmTemp+0.5≥T2≥Tsc_WarmTemp-0.5℃, the maximum frequency limit Fre_WarmwindFanlimit value is not processed, and the maximum frequency limit is updated after an interval of Time_Slow seconds;

[0169] 5. When Tsc_WarmTemp-0.5>T2≥Tsc_WarmTemp-2.5℃, the actual operating frequency Fr and the maximum frequency limit Fre_WarmwindFanlimit are reduced by 0.5HZ based on the minimum value, that is, Fre_WarmwindFanlimit=MIN(Fre_WarmwindFanlimit, Fr)-0.5Hz, and the maximum frequency limit is updated after an interval of Time_Mid seconds;

[0170] 6. When Tsc_WarmTemp-2.5>T2≥Tsc_WarmTemp-3.5℃, the actual operating frequency Fr and the maximum frequency limit Fre_WarmwindFanlimit are reduced by 1HZ based on the minimum value, that is, Fre_WarmwindFanlimit=MIN(Fre_WarmwindFanlimit, Fr)-1Hz, and the maximum frequency limit is updated after an interval of Time_Mid seconds;

[0171] 7. When T2<Tsc_WarmTemp-3.5℃, the actual operating frequency Fr and the maximum frequency limit Fre_WarmwindFanlimit are reduced by 2HZ based on the minimum value, that is, Fre_WarmwindFanlimit=MIN(Fre_WarmwindFanlimit, Fr)-2Hz, and the maximum frequency limit is updated after an interval of Time_Fast seconds;

[0172] 8. Fre_WarmwindFanlimit recalculates the initial frequency every time the wind speed changes according to the calculation formula of the above maximum frequency limit Fre_WarmwindFanlimit, and then adjusts it according to the tube temperature of heat exchanger T2 and the actual operating frequency.

[0173] Based on the above calculation method, the embodiment of the present application can take the soft temperature outlet temperature of 20° as an example, and the specific frequency limit adjustment method can be as follows: Fig.14 shown.

[0174] The temperature adjustment method of the embodiment of the present application can change the temperature range, frequency modulation time, and frequency modulation amplitude according to the output capacity and usage scenarios of different air conditioners; through the control method of the embodiment of the present application, in the scenario where the user needs direct blowing of cold air, the purpose of soft and warm blowing can be achieved according to the air outlet temperature level set by the user.

[0175] Based on the control methods of the air conditioner in the above-mentioned embodiments, various embodiments of the controller, the air conditioner and the computer-readable storage medium of the present application are respectively proposed below.

[0176] like Fig.15 As shown, Fig.151 is a schematic diagram of a controller for executing a control method for an air conditioner provided by an embodiment of the present application. The controller 100 implemented in the present application includes: a processor 110, a memory 120, and a computer program stored in the memory 120 and executable on the processor 110, wherein: Fig.15 In the figure, a processor 110 and a memory 120 are taken as an example.

[0177] The processor 110 and the memory 120 may be connected via a bus or other means. Fig.15 The example of connecting through bus is taken in the following.

[0178] The memory 120, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs and non-transitory computer executable programs. In addition, the memory 120 may include a high-speed random access memory, and may also include a non-transitory memory, such as at least one disk storage device, a flash memory device, or other non-transitory solid-state storage device. In some embodiments, the memory 120 may optionally include a memory 120 remotely arranged relative to the processor 110, and these remote memories 120 may be connected to the controller 100 via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0179] Those skilled in the art will understand that Fig.15 The device structure shown in the figure does not constitute a limitation on the controller 100, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0180] exist Fig.15 In the controller 100 shown, the processor 110 can be used to call the air conditioner control program stored in the memory 120, so as to implement the above-mentioned air conditioner control method. Specifically, the non-transient software program and instructions required to implement the air conditioner control method of the above-mentioned embodiment are stored in the memory 120, and when executed by the processor 110, the air conditioner control method of the above-mentioned embodiment is executed.

[0181] It is worth noting that since the controller 100 of the embodiment of the present application can execute the control method of the air conditioner of any of the above-mentioned embodiments, the specific implementation manner and technical effects of the controller 100 of the embodiment of the present application can refer to the specific implementation manner and technical effects of the control method of the air conditioner of any of the above-mentioned embodiments.

[0182] In addition, an embodiment of the present application further provides an air conditioner, comprising the controller of the above embodiment.

[0183] It is worth noting that since the air conditioner of the embodiment of the present application includes the controller of the above-mentioned embodiment, and the controller of the above-mentioned embodiment can execute the control method of the air conditioner of any of the above-mentioned embodiments, the specific implementation methods and technical effects of the air conditioner of the embodiment of the present application can refer to the specific implementation methods and technical effects of the control method of the air conditioner of any of the above-mentioned embodiments.

[0184] In addition, an embodiment of the present application further provides a computer-readable storage medium, which stores computer-executable instructions, and the computer-executable instructions are used to execute the above-described air conditioner control method. Figures 1 to 12 The method steps in .

[0185] It is worth noting that since the computer-readable storage medium of the embodiment of the present application can execute the control method of the air conditioner of any of the above-mentioned embodiments, the specific implementation methods and technical effects of the computer-readable storage medium of the embodiment of the present application can refer to the specific implementation methods and technical effects of the control method of the air conditioner of any of the above-mentioned embodiments.

[0186] It will be appreciated by those skilled in the art that all or some of the steps and systems in the disclosed method above may be implemented as software, firmware, hardware and appropriate combinations thereof. Some physical components or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor or a microprocessor, or may be implemented as hardware, or may be implemented as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or a non-transitory medium) and a communication medium (or a temporary medium). As known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, disk storage or other magnetic storage devices, or any other medium that may be used to store desired information and may be accessed by a computer. Furthermore, it is well known to those skilled in the art that communication media typically include computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0187] The above is a specific description of the preferred implementation of the present application, but the present application is not limited to the above implementation mode. Technical personnel familiar with the field can also make various equivalent modifications or substitutions under the shared conditions without violating the spirit of the present application. These equivalent modifications or substitutions are all included in the scope defined by the claims of the present application.

Claims

1. A method for controlling an air conditioner, characterized in that: include: Receive the set air outlet temperature level and set wind speed level corresponding to the soft temperature function instruction, and obtain the coil temperature of the indoor unit heat exchanger; Determining the maximum limiting frequency of the compressor according to the set wind speed level; The maximum limit frequency is adjusted according to the set air outlet temperature level and the coil temperature.

2. The control method according to claim 1, characterized in that: The control method further comprises: Get the cooling set temperature in cooling mode; The target air outlet temperature of the air conditioner is determined according to the cooling setting temperature and a preset compensation temperature, wherein the preset compensation temperature is a positive number.

3. The control method according to claim 1, characterized in that: The control method further comprises: Get the preset minimum allowable wind speed; The target outlet wind speed of the air conditioner is determined according to the minimum allowable wind speed and the set wind speed level, wherein the target outlet wind speed is obtained by proportionally increasing the minimum allowable wind speed.

4. The control method according to claim 1, characterized in that: The step of determining the maximum limiting frequency of the compressor according to the set wind speed level comprises: Obtaining a lower frequency limit and an upper frequency limit of the compressor; The maximum limiting frequency of the compressor is determined according to the set wind speed level, the lower limit frequency and the upper limit frequency.

5. The control method according to claim 4, characterized in that: The lower frequency limit is determined by the model of the air conditioner; the upper frequency limit is obtained by the following steps: Get the outdoor ambient temperature; An upper frequency limit of the compressor is determined according to the outdoor ambient temperature and a preset temperature.

6. The control method according to claim 5, characterized in that: The step of determining the upper frequency limit of the compressor according to the outdoor ambient temperature and a preset temperature includes one of the following: When the outdoor ambient temperature is greater than the preset temperature, setting the upper limit frequency to a first frequency value; When the outdoor ambient temperature is less than or equal to the preset temperature, the upper frequency limit is set to a second frequency value, wherein the second frequency value is less than the first frequency value.

7. The control method according to any one of claims 4 to 6, characterized in that: The step of determining the maximum limiting frequency of the compressor according to the set wind speed level, the lower limit frequency and the upper limit frequency comprises: Inputting the set wind speed level, the lower limit frequency and the upper limit frequency into a frequency calculation model, and outputting the maximum limit frequency of the compressor; Among them, the frequency calculation model includes a first input variable and a variable combination, the first input variable is used to be assigned the lower limit frequency, the variable combination is the product of the second input variable and the third input variable, the second input variable is used to be assigned the ratio of the set wind speed level and the total number of preset levels, the third input variable is used to be assigned the difference between the upper limit frequency and the lower limit frequency, and the sum of the first input variable and the variable combination is the maximum limit frequency of the compressor.

8. The control method according to claim 1, characterized in that: The adjusting the maximum limit frequency according to the set air outlet temperature level and the coil temperature includes: Determining a first temperature range according to the set air outlet temperature level and the first compensation interval; When the coil temperature is within the first temperature range, the maximum limit frequency is increased based on a first adjustment step, wherein the first adjustment step is positively correlated with the coil temperature.

9. The control method according to claim 8, characterized in that: The adjusting the maximum limit frequency according to the set air outlet temperature level and the coil temperature also includes: Determining a second temperature range according to the set air outlet temperature level and the second compensation interval, wherein an upper limit value of the second compensation interval is less than or equal to a lower limit value of the first compensation interval; When the coil temperature is within the second temperature range, the maximum limit frequency is maintained unchanged.

10. The control method according to claim 9, characterized in that: The adjusting the maximum limit frequency according to the set air outlet temperature level and the coil temperature also includes: Determining a third temperature range according to the set air outlet temperature level and a third compensation interval, wherein an upper limit value of the third compensation interval is less than or equal to a lower limit value of the second compensation interval; When the coil temperature is within the third temperature range, obtaining an actual operating frequency of the compressor; Filtering out the minimum value between the maximum limit frequency and the actual operating frequency as a reference frequency; The reference frequency is reduced based on a third adjustment step, and the adjusted reference frequency is used as a new maximum limit frequency, wherein the third adjustment step is negatively correlated with the coil temperature.

11. A controller, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the control method according to any one of claims 1 to 10 when executing the computer program.

12. An air conditioner, characterized in that: Comprising a controller as claimed in claim 11.

13. A computer-readable storage medium, characterized in that: Computer executable instructions are stored, and the computer executable instructions are used to execute the control method according to any one of claims 1 to 10.

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