Air conditioner control method and device, air conditioner and medium

Abstract

The invention relates to the technical field of air conditioners, particularly provides an air conditioner control method and device, an air conditioner and a medium, and aims to solve the problem that the rotating speed of an outer fan of an existing air conditioner cannot be adjusted based on the heat exchange requirement of the air conditioner. In order to achieve the purpose, the method comprises the steps that the outer ring temperature and the cold outlet temperature of the air conditioner are obtained, and / or the air return temperature and the coil pipe temperature of the air conditioner are obtained; and based on the outer ring temperature, the cold outlet temperature and / or the return air temperature and the coil pipe temperature, the rotating speed of an outer fan of the air conditioner is controlled. Through the arrangement, the rotating speed of the outer draught fan can be adjusted based on the heat exchange requirement of the air conditioner, the working efficiency of the air conditioner is improved, the energy efficiency of the air conditioner is improved, and the use experience of a user is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and specifically provides an air conditioning control method, device, air conditioning and medium. Background Art

[0002] In the prior art, the external fan speed adjustment logic is to adjust based on the external ring temperature and / or the compressor operating frequency, that is, the external fan speed is only adjusted based on the external ring temperature in the first three minutes after the air conditioner is turned on, and then the external fan speed is adjusted based on the external ring temperature and the compressor frequency. However, such external fan speed adjustment is not based on the heat exchange requirements of the air conditioner, and therefore will affect the energy efficiency of the air conditioner, and thus also bring a bad user experience.

[0003] Accordingly, the art needs a new air conditioning control method to solve the above problems. Summary of the invention

[0004] The present invention aims to solve the above technical problem, namely, to solve the problem that the speed of the external fan of the existing air conditioner cannot be adjusted based on the heat exchange demand of the air conditioner.

[0005] In order to achieve the above object, in a first aspect, the present invention provides an air conditioning control method, the method comprising the following steps:

[0006] Obtaining the outer loop temperature and the cold outlet temperature of the air conditioner, and / or obtaining the return air temperature and the coil temperature of the air conditioner;

[0007] Based on the outer ring temperature, the cold outlet temperature and / or the return air temperature and the coil temperature, the speed of the outer fan of the air conditioner is controlled.

[0008] In the optional technical solution of the above-mentioned air conditioning control method, the step of "controlling the speed of the external fan of the air conditioner based on the external ring temperature and the cold outlet temperature and / or the return air temperature and the coil temperature" includes:

[0009] When the air conditioner is operated in a cooling mode, a first temperature difference is obtained based on the outer ring temperature and the cold outlet temperature, and a speed of an outer fan of the air conditioner is controlled based on the first temperature difference;

[0010] And / or, when the air conditioner is operated in a heating mode, a second temperature difference is obtained based on the return air temperature and the coil temperature, and a speed of an external fan of the air conditioner is controlled based on the second temperature difference.

[0011] In the optional technical solution of the above-mentioned air conditioning control method, the step of “controlling the speed of the outdoor fan of the air conditioner based on the first temperature difference” includes:

[0012] Obtain the current external fan speed of the air conditioner;

[0013] Determining a first temperature difference interval in which the first temperature difference is located;

[0014] When the first temperature difference is within a first preset temperature difference interval, controlling the air conditioner to maintain a current speed of an external fan of the air conditioner;

[0015] When the first temperature difference is not within the first preset temperature difference range, the air conditioner is controlled to perform a first external fan speed adjustment operation.

[0016] In the optional technical solution of the above-mentioned air conditioning control method, the step of “when the first temperature difference is not within the first preset temperature difference interval, controlling the air conditioner to perform a first external fan speed adjustment operation” includes:

[0017] Determine a slope K based on a first temperature difference interval in which the first temperature difference is located, wherein the slope K is an adjustment value of the speed of the internal and external fans per unit time;

[0018] Based on the slope K and the formula R=R0+Kt, the air conditioner is controlled to perform the first external fan speed adjustment operation, wherein R is the adjusted external fan speed, R0 is the current external fan speed of the air conditioner, and t is the duration for the air conditioner to perform the first external fan speed adjustment operation and t is less than or equal to the first preset duration.

[0019] In the optional technical solution of the above-mentioned air conditioning control method, the step of “controlling the speed of the outdoor fan of the air conditioner based on the second temperature difference” includes:

[0020] Obtain the current external fan speed of the air conditioner;

[0021] determining a second temperature difference interval in which the second temperature difference is located;

[0022] When the second temperature difference is within a second preset temperature difference range, controlling the air conditioner to maintain a current speed of the external fan of the air conditioner;

[0023] When the second temperature difference is not within the second preset temperature difference range, the air conditioner is controlled to perform a second external fan speed adjustment operation.

[0024] In the optional technical solution of the above-mentioned air conditioning control method, the step of “when the second temperature difference is not within the second preset temperature difference range, controlling the air conditioner to perform a second external fan speed adjustment operation” includes:

[0025] Determine a slope K based on a second temperature difference interval in which the second temperature difference is located, wherein the slope K is an adjustment value of the speed of the internal and external fans per unit time;

[0026] Based on the slope K and the formula R=R0+Kt, the air conditioner is controlled to perform the second external fan speed adjustment operation, wherein R is the adjusted external fan speed, R0 is the current external fan speed of the air conditioner, and t is the duration for the air conditioner to perform the second external fan speed adjustment operation and t is less than or equal to the second preset duration.

[0027] In the optional technical solution of the above air conditioning control method, the step of "obtaining the outer ring temperature and the cold outlet temperature of the air conditioner, and / or obtaining the return air temperature and the coil temperature of the air conditioner" includes:

[0028] When the air conditioner is operated in a cooling mode, obtaining the outer ring temperature and the cold outlet temperature at intervals of a third preset time;

[0029] And / or, when the air conditioner is operated in a heating mode, the return air temperature and the coil temperature are obtained at intervals of a fourth preset time.

[0030] In a second aspect, the present invention further provides an air conditioning control device, the device comprising:

[0031] An acquisition module is configured to acquire the outer loop temperature and the cold outlet temperature of the air conditioner, and / or acquire the return air temperature and the coil temperature of the air conditioner;

[0032] The control module is configured to control the speed of the external fan of the air conditioner based on the external loop temperature and the cold outlet temperature and / or the return air temperature and the coil temperature.

[0033] In a third aspect, the present invention further provides an air conditioner, comprising an air conditioner body, a memory, and a processor, wherein the memory stores machine executable instructions, and when the machine executable instructions are executed by the processor, the air conditioner can implement an air conditioning control method as described in any one of the above.

[0034] In a fourth aspect, the present invention further provides a readable storage medium, wherein a plurality of program codes are stored in the readable storage medium, and the program codes are suitable for being loaded and run by a processor to execute any one of the air conditioning control methods described above.

[0035] Those skilled in the art can understand that, in the technical solution of the present invention, the outer ring temperature and the cold outlet temperature of the air conditioner are obtained, and / or the return air temperature and the coil temperature of the air conditioner are obtained; based on the outer ring temperature and the cold outlet temperature and / or the return air temperature and the coil temperature, the outer fan speed of the air conditioner is controlled. Such a setting can adjust the outer fan speed based on the heat exchange demand of the air conditioner, improve the working efficiency of the air conditioner, improve the energy efficiency of the air conditioner, and also improve the user experience.

[0036] Further, when the first temperature difference is not within the first preset temperature difference interval, the step of controlling the air conditioner to perform the first external fan speed adjustment operation includes: determining a slope K based on the first temperature difference interval in which the first temperature difference is located, wherein the slope K is the adjustment value of the external fan speeds per unit time; controlling the air conditioner to perform the first external fan speed adjustment operation based on the slope K and the formula R=R0+Kt, wherein R is the adjusted external fan speed, R0 is the current external fan speed of the air conditioner, and t is the duration for the air conditioner to perform the first external fan speed adjustment operation and t is less than or equal to the first preset duration. And / or, when the second temperature difference is not in the second preset temperature difference interval, the step of controlling the air conditioner to perform the second external fan speed adjustment operation includes: determining the slope K based on the second temperature difference interval in which the second temperature difference is located, wherein the slope K is the adjustment value of the external fan speed per unit time; controlling the air conditioner to perform the second external fan speed adjustment operation based on the slope K and the formula R=R0+Kt, wherein R is the adjusted external fan speed, R0 is the external fan speed of the current air conditioner, t is the duration of the air conditioner performing the second external fan speed adjustment operation and t is less than or equal to the second preset duration. Such a setting can achieve stepless speed change when the external fan is changing speed, so as not to cause a sudden change in the speed of the external fan, reduce the noise of the fan, and further improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The disclosure of the present invention will become more easily understood with reference to the accompanying drawings. It is easy for those skilled in the art to understand that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In addition, similar numbers in the figures are used to represent similar components, among which:

[0038] Figure 1 is a schematic flow chart of main steps of an air conditioning control method according to an embodiment of the present invention;

[0039] Figure 2 is a flow chart of main steps for controlling the speed of an external fan of an air conditioner based on a first temperature difference according to an embodiment of the present invention;

[0040] Figure 3 is a schematic flow chart of main steps of controlling an air conditioner to perform a first external fan speed adjustment operation according to an embodiment of the present invention;

[0041] Figure 4 is a flow chart of main steps for controlling the speed of an external fan of an air conditioner based on a second temperature difference according to an embodiment of the present invention;

[0042] Figure 5 is a schematic flow chart of main steps of controlling an air conditioner to perform a second external fan speed adjustment operation according to an embodiment of the present invention;

[0043] Figure 6is a schematic diagram of a main structural block diagram of an air conditioning control device according to an embodiment of the present invention;

[0044] Figure 7 It is a schematic diagram of the module structure of an air conditioner to which the air conditioner control method of the present invention is applied.

[0045] Reference numerals list :

[0046] 11: Acquisition module; 12: Control module. DETAILED DESCRIPTION

[0047] Some embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0048] In the description of the present invention, "module" and "processor" may include hardware, software or a combination of the two. A module may include hardware circuits, various suitable sensors, communication ports, and memories, and may also include software parts, such as program codes, or a combination of software and hardware. The processor may be a central processing unit, a microprocessor, an image processor, a digital signal processor, or any other suitable processor. The processor has data and / or signal processing functions. The processor may be implemented in software, hardware, or a combination of the two. Non-temporary computer-readable storage media include any suitable media that can store program codes, such as magnetic disks, hard disks, optical disks, flash memories, read-only memories, random access memories, and the like. The term "A and / or B" means all possible combinations of A and B, such as just A, just B, or A and B. The singular terms "one" and "the" may also include plural forms.

[0049] As described in the background technology section, in order to solve the problem that the speed of the external fan of the existing air conditioner cannot be adjusted based on the heat exchange demand of the air conditioner, the present invention provides an air conditioner control method.

[0050] See attached Figure 1 , Figure 1 1 is a flow chart of the main steps of an air conditioning control method according to an embodiment of the present invention, wherein the air conditioning control method can be executed by a server, or by an air conditioner, or by both a server and an air conditioner. Figure 1 As shown, the air conditioning control method of the present invention comprises the following steps:

[0051] Step S101: obtaining the outer loop temperature and the cold outlet temperature of the air conditioner, and / or obtaining the return air temperature and the coil temperature of the air conditioner.

[0052] Specifically, the outer ring temperature is the external environment temperature, which can be obtained by the outer ring temperature sensor installed on the air conditioner outdoor unit; the cold outlet temperature is the air outlet temperature of the outdoor unit condenser, which can be obtained by the cold outlet temperature sensor installed at the air outlet of the outdoor unit condenser. The return air temperature is the gas temperature at the compressor suction inlet, which can be obtained by the return air temperature sensor installed at the compressor suction inlet; the coil temperature is the coil temperature of the indoor evaporator, which can be obtained by the coil temperature sensor installed at the indoor evaporator coil.

[0053] Step S102: Based on the outer ring temperature, the cold outlet temperature and / or the return air temperature and the coil temperature, the outer fan speed of the air conditioner is controlled.

[0054] Based on the above steps S101 and S102, the present invention obtains the outer ring temperature and the cold outlet temperature of the air conditioner, and / or obtains the return air temperature and the coil temperature of the air conditioner; based on the outer ring temperature and the cold outlet temperature and / or the return air temperature and the coil temperature, the outer fan speed of the air conditioner is controlled. Such a setting can adjust the outer fan speed based on the heat exchange demand of the air conditioner, improve the working efficiency of the air conditioner, improve the energy efficiency of the air conditioner, and also improve the user experience.

[0055] In some embodiments, based on the outer ring temperature, the cold outlet temperature and / or the return air temperature and the coil temperature, controlling the speed of the outer fan of the air conditioner further comprises the following steps:

[0056] Step S1021: when the air conditioner is running in the cooling mode, a first temperature difference is obtained based on the outer ring temperature and the cold outlet temperature, and the outer fan speed of the air conditioner is controlled based on the first temperature difference.

[0057] Step S1022: and / or, when the air conditioner is operated in the heating mode, a second temperature difference is obtained based on the return air temperature and the coil temperature, and a speed of an external fan of the air conditioner is controlled based on the second temperature difference.

[0058] Specifically, when the air conditioner is running in cooling mode, the first temperature difference is obtained based on the cold outlet temperature minus the outer ring temperature; because when the air conditioner is running in cooling mode, the closer the cold outlet temperature is to the outer ring temperature, the more sufficient the heat exchange of the air conditioner is, so the air conditioner's external fan speed can be controlled based on the first temperature difference. When the air conditioner is running in heating mode, the second temperature difference is obtained based on the return air temperature minus the coil temperature; because when the air conditioner is running in heating mode, the closer the return air temperature is to the coil temperature, the more sufficient the heat exchange of the air conditioner is, so the air conditioner's external fan speed can be controlled based on the second temperature difference.

[0059] See attached Figure 2 , Figure 2 1 is a flow chart of the main steps of controlling the speed of the outdoor fan of the air conditioner based on the first temperature difference according to an embodiment of the present invention. Figure 2 As shown, in some embodiments, controlling the speed of the external fan of the air conditioner based on the first temperature difference includes the following steps:

[0060] Step S201: Obtain the current external fan speed of the air conditioner.

[0061] Step S202: determining the first temperature difference interval in which the first temperature difference is located.

[0062] Step S203: When the first temperature difference is within the first preset temperature difference interval, the air conditioner is controlled to maintain the current speed of the external fan of the air conditioner.

[0063] Step S204: When the first temperature difference is not within the first preset temperature difference range, controlling the air conditioner to perform a first external fan speed adjustment operation.

[0064] Specifically, when the first temperature difference is within the first preset temperature difference interval, it indicates that the air conditioning system has reached a better heat exchange state at this time, so there is no need to adjust the speed of the external fan, and only the current air conditioning external fan speed is maintained. When the first temperature difference is not within the first preset temperature difference interval, it indicates that the heat exchange effect of the air conditioning system is poor at this time, so it is necessary to adjust the speed of the external fan to improve the heat exchange effect of the air conditioning system.

[0065] For example, the first preset temperature difference interval may be less than or equal to 3°C, that is, when the difference between the cold outlet temperature and the outer ring temperature is less than or equal to 3°C, the air conditioner is controlled to maintain the current air conditioner's outer fan speed. The value of the first preset temperature difference described above is only for illustrative purposes and can be selected according to actual needs in actual applications.

[0066] See attached Figure 3 , Figure 3 FIG. 1 is a flow chart showing the main steps of controlling the air conditioner to perform the first external fan speed adjustment operation according to an embodiment of the present invention. Figure 3 As shown, in some embodiments, when the first temperature difference is not within the first preset temperature difference interval, controlling the air conditioner to perform the first external fan speed adjustment operation includes the following steps:

[0067] Step S301: determining a slope K based on a first temperature difference interval in which a first temperature difference is located, wherein the slope K is an adjustment value of the speed of the internal and external fans per unit time.

[0068] Step S302: Based on the slope K and the formula R=R0+Kt, the air conditioner is controlled to perform the first external fan speed adjustment operation, where R is the adjusted external fan speed, R0 is the current external fan speed of the air conditioner, and t is the duration of the air conditioner performing the first external fan speed adjustment operation and t is less than or equal to the first preset duration.

[0069] Specifically, multiple first temperature difference intervals can be set. When different first temperature differences are in the same first temperature difference interval, the slope K takes the same value; at the same time, the value of the slope K is greater than 0, and the value of the slope K increases with the increase of the value of the first temperature difference interval in which the first temperature difference is located. Based on the formula R=R0+Kt, the adjusted external fan speed at different times when the first external fan speed adjustment operation is performed is obtained, and then the external fan speed is set to the adjusted external fan speed. Such a setting can achieve stepless speed change when changing the speed of the external fan, avoiding the situation where the external fan speed can only be adjusted between several speed gears, thereby not causing a sudden change in the speed of the external fan, reducing the noise of the fan, and further improving the user experience.

[0070] Exemplarily, there may be three first temperature difference intervals, namely greater than 3°C and less than or equal to 4°C, greater than 4°C and less than or equal to 5°C, and greater than 5°C and less than or equal to 6°C. At the same time, the number of first temperature difference intervals and the size of the intervals set may be adjusted in the air conditioner memory. The slope K may be determined based on the first temperature difference interval in which the first temperature difference is located: when the first temperature difference is in the interval greater than 3°C and less than or equal to 4°C, the slope K takes a value of 0.2; when the first temperature difference is in the interval greater than 4°C and less than or equal to 5°C, the slope K takes a value of 0.3; when the first temperature difference is in the interval greater than 5°C and less than or equal to 6°C, the slope K takes a value of 0.4. The first preset duration may be 15 seconds, which means that the first external fan speed adjustment operation needs to be performed for a total of 15 seconds, and the duration t for the air conditioner to perform the first external fan speed adjustment operation gradually increases from 0 to 15 seconds. For example, when the current air conditioner's external fan speed is 20 rpm and the first temperature difference is greater than 4°C and less than or equal to 5°C, the air conditioner needs to adjust the external fan speed to 23 rpm at the 10th second of executing the first external fan speed adjustment operation.

[0071] The above-mentioned setting of the number of first temperature difference intervals, setting of the value of the first temperature difference interval, setting method of determining the slope K based on the first temperature difference interval in which the first temperature difference is located, and the value of the external fan speed of the current air conditioner are only for illustrative purposes and can be selected according to actual needs in actual applications.

[0072] In some embodiments, when the first temperature difference is not within the first preset temperature difference range, controlling the air conditioner to perform the first external fan speed adjustment operation includes the following steps:

[0073] Step S401: Determine the slope K and duration t based on the value of the first temperature difference and / or the first temperature difference interval in which the first temperature difference is located, wherein the slope K is the adjustment value of the external and internal fan speeds per unit time, and the duration t is the duration for the air conditioner to perform the first external fan speed adjustment operation and t is less than or equal to the first preset duration.

[0074] Step S402: Based on the slope K, the duration t and the formula R=R0+Kt, the air conditioner is controlled to perform a first external fan speed adjustment operation, where R is the adjusted external fan speed and R0 is the current external fan speed of the air conditioner.

[0075] Specifically, the slope K is determined based on the first temperature difference interval in which the first temperature difference is located, that is, when different first temperature differences are located in the same first temperature difference interval, the slope K takes the same value; at the same time, the value of the slope K is greater than 0, and the value of the slope K increases as the value of the first temperature difference interval in which the first temperature difference is located increases. The time length t is determined based on the value of the first temperature difference and the first temperature difference interval in which the first temperature difference is located, that is, when different first temperature differences are located in the same first temperature difference interval, the corresponding time length t is also different, and the time length t increases as the relative position of the value of the first temperature difference in the first temperature difference interval increases.

[0076] Exemplarily, the first temperature difference interval may include an interval greater than 4°C and less than or equal to 5°C, and the time length t may increase as the relative position of the first temperature difference value in the first temperature difference interval increases: when the first temperature difference value is 4.5°C, the time length t may be 7.5 seconds; when the first temperature difference value is 5°C, the time length t may be 15 seconds. The above-mentioned setting method of the first temperature difference interval and the setting method of determining the time length t based on the value of the first temperature difference and the first temperature difference interval in which the first temperature difference is located are only exemplary descriptions, and can be selected according to actual needs in actual applications.

[0077] In some embodiments, before controlling the air conditioner to perform a first external fan speed adjustment operation based on the slope K and the formula R=R0+Kt, the method also includes: determining whether the adjusted external fan speed is less than or equal to a speed threshold; when the adjusted external fan speed is less than or equal to the speed threshold, controlling the air conditioner to perform a first external fan speed adjustment operation based on the slope K and the formula R=R0+Kt.

[0078] See attached Figure 4 , Figure 4 FIG. 1 is a flow chart of the main steps of controlling the speed of the external fan of the air conditioner based on the second temperature difference according to an embodiment of the present invention. Figure 4 As shown, in some embodiments, controlling the speed of the external fan of the air conditioner based on the second temperature difference includes the following steps:

[0079] Step S501: Obtain the current external fan speed of the air conditioner.

[0080] Step S502: determining the second temperature difference interval in which the second temperature difference is located.

[0081] Step S503: When the second temperature difference is within the second preset temperature difference interval, the air conditioner is controlled to maintain the current speed of the external fan of the air conditioner.

[0082] Step S504: When the second temperature difference is not within the second preset temperature difference range, controlling the air conditioner to perform a second external fan speed adjustment operation.

[0083] Specifically, when the second temperature difference is within the second preset temperature difference interval, it indicates that the air conditioning system has reached a better heat exchange state at this time, so there is no need to adjust the speed of the external fan, and only the current air conditioning external fan speed is maintained. When the second temperature difference is not within the second preset temperature difference interval, it indicates that the heat exchange effect of the air conditioning system is poor at this time, so it is necessary to adjust the speed of the external fan to improve the heat exchange effect of the air conditioning system.

[0084] For example, the second preset temperature difference interval may be less than or equal to 1°C, that is, when the difference between the return air temperature and the coil temperature is less than or equal to 1°C, the air conditioner is controlled to maintain the current air conditioner outdoor fan speed. The above-mentioned second preset temperature difference value is only for illustrative purposes and can be selected according to actual needs in actual applications.

[0085] See attached Figure 5 , Figure 5 FIG. 1 is a flow chart showing the main steps of controlling the air conditioner to perform the second external fan speed adjustment operation according to an embodiment of the present invention. Figure 5 As shown, in some embodiments, when the second temperature difference is not within the second preset temperature difference interval, controlling the air conditioner to perform the second external fan speed adjustment operation includes the following steps:

[0086] Step S601: determining a slope K based on a second temperature difference interval in which the second temperature difference is located, wherein the slope K is an adjustment value of the speed of the internal and external fans per unit time.

[0087] Step S602: Based on the slope K and the formula R=R0+Kt, the air conditioner is controlled to perform a second external fan speed adjustment operation, where R is the adjusted external fan speed, R0 is the current external fan speed of the air conditioner, and t is the duration for the air conditioner to perform the second external fan speed adjustment operation and t is less than or equal to the second preset duration.

[0088] Specifically, multiple second temperature difference intervals can be set, and when different second temperature differences are in the same second temperature difference interval, the slope K takes the same value; at the same time, the value of the slope K is greater than 0, and the value of the slope K increases as the value of the second temperature difference interval in which the second temperature difference is located increases. Based on the formula R=R0+Kt, the adjusted external fan speeds at different times when the second external fan speed adjustment operation is performed are obtained, and then the external fan speed is set to the adjusted external fan speed.

[0089] Exemplarily, the second temperature difference interval can be 4, which are greater than 1°C and less than or equal to 2°C, greater than 2°C and less than or equal to 3°C, greater than 3°C and less than or equal to 4°C, and greater than 4°C and less than or equal to 5°C. At the same time, the number of second temperature difference intervals and the size of the intervals can be adjusted in the air conditioner memory. The slope K can be determined based on the second temperature difference interval in which the second temperature difference is located: when the second temperature difference is greater than 1°C and less than or equal to 2°C, the slope K takes a value of 0.1; when the second temperature difference is greater than 2°C and less than or equal to 3°C, the slope K takes a value of 0.2; when the second temperature difference is greater than 3°C and less than or equal to 4°C, the slope K takes a value of 0.3; when the second temperature difference is greater than 4°C and less than or equal to 5°C, the slope K takes a value of 0.4. The first preset time length can be 10 seconds, which means that the second external fan speed adjustment operation needs to be performed for a total of 10 seconds, and the time length t for the air conditioner to perform the second external fan speed adjustment operation gradually increases from 0 to 10 seconds. For example, when the current air conditioner's external fan speed is 20 rpm and the second temperature difference is greater than 4°C and less than or equal to 5°C, the air conditioner needs to adjust the external fan speed to 24 rpm at the 10th second of the first external fan speed adjustment operation.

[0090] The above-mentioned setting of the number of second temperature difference intervals, setting of the value of the second temperature difference interval, setting method of determining the slope K based on the second temperature difference interval in which the second temperature difference is located, and the value of the external fan speed of the current air conditioner are only for illustrative purposes and can be selected according to actual needs in actual applications.

[0091] In some embodiments, when the second temperature difference is not within the second preset temperature difference range, controlling the air conditioner to perform the second external fan speed adjustment operation includes the following steps:

[0092] Step S701: Determine the slope K and duration t based on the value of the second temperature difference and / or the second temperature difference interval in which the second temperature difference is located, wherein the slope K is the adjustment value of the speed of the external and internal fans per unit time, and the duration t is the duration for the air conditioner to perform the second external fan speed adjustment operation and t is less than or equal to the second preset duration.

[0093] Step S702: Based on the slope K, the duration t and the formula R=R0+Kt, the air conditioner is controlled to perform a second external fan speed adjustment operation, where R is the adjusted external fan speed and R0 is the current external fan speed of the air conditioner.

[0094] Specifically, the slope K is determined based on the second temperature difference interval in which the second temperature difference is located, that is, when different second temperature differences are located in the same second temperature difference interval, the slope K takes the same value; at the same time, the value of the slope K is greater than 0, and the value of the slope K increases as the value of the second temperature difference interval in which the second temperature difference is located increases. The time length t is determined based on the value of the second temperature difference and the second temperature difference interval in which the second temperature difference is located, that is, when different second temperature differences are located in the same second temperature difference interval, the corresponding time length t is also different, and the time length t increases as the relative position of the value of the second temperature difference in the second temperature difference interval increases.

[0095] In some embodiments, before controlling the air conditioner to perform a second external fan speed adjustment operation based on the slope K and the formula R=R0+Kt, the method also includes: determining whether the adjusted external fan speed is less than or equal to a speed threshold; when the adjusted external fan speed is less than or equal to the speed threshold, controlling the air conditioner to perform a second external fan speed adjustment operation based on the slope K and the formula R=R0+Kt.

[0096] In some embodiments, obtaining the outer loop temperature and the cold outlet temperature of the air conditioner, and / or obtaining the return air temperature and the coil temperature of the air conditioner comprises the following steps:

[0097] Step S801: when the air conditioner is operated in cooling mode, the outer ring temperature and the cold outlet temperature are obtained at intervals of a third preset time.

[0098] Step S802: and / or, when the air conditioner is operated in the heating mode, the return air temperature and the coil temperature are obtained at every fourth preset time interval.

[0099] Specifically, when the air conditioner is operating in cooling mode, the outer ring temperature and the cold outlet temperature are obtained at every third preset time interval after the air conditioner is turned on for the fifth preset time period, so that the heat exchange state of the air conditioning system is detected at every third preset time interval, and then it is determined whether the air conditioner needs to perform the first external fan speed adjustment operation again; and / or, when the air conditioner is operating in heating mode, the return air temperature and the coil temperature are obtained at every fourth preset time interval after the air conditioner is turned on for the sixth preset time period, so that the heat exchange state of the air conditioning system is detected at every fourth preset time interval, and then it is determined whether the air conditioner needs to perform the second external fan speed adjustment operation again.

[0100] Exemplarily, the third preset duration, the fourth preset duration, the fifth preset duration, and the sixth preset duration may take the same value, for example, the third preset duration, the fourth preset duration, the fifth preset duration, and the sixth preset duration are all set to 3 minutes. Alternatively, multiple of the third preset duration, the fourth preset duration, the fifth preset duration, and the sixth preset duration may also be set to different values, for example, the third preset duration is set to 2 minutes, and the fourth preset duration, the fifth preset duration, and the sixth preset duration are all set to 3 minutes. The values ​​of the third preset duration, the fourth preset duration, the fifth preset duration, and the sixth preset duration described above are only for illustrative purposes, and may be selected according to actual needs in actual applications.

[0101] It should be pointed out that although the various steps in the above embodiments are described in a specific order, those skilled in the art can understand that in order to achieve the effects of the present invention, different steps do not have to be performed in such an order. They can be performed simultaneously (in parallel) or in other orders. These changes are within the scope of protection of the present invention.

[0102] Furthermore, the present invention also provides an air conditioning control device.

[0103] See attached Figure 6 , Figure 6 FIG. 1 is a schematic diagram of the main structure of an air conditioning control device according to an embodiment of the present invention. Figure 6 As shown, the air conditioning control device in the embodiment of the present invention mainly includes an acquisition module 11 and a control module 12. In some embodiments, the acquisition module 11 and the control module 12 can be combined into one module. In some embodiments, the acquisition module 11 can be configured to acquire the outer ring temperature and the cold outlet temperature of the air conditioner, and / or acquire the return air temperature and the coil temperature of the air conditioner; the control module 12 can be configured to control the speed of the outer fan of the air conditioner based on the outer ring temperature, the cold outlet temperature and / or the return air temperature and the coil temperature.

[0104] In some embodiments, when the air conditioner is operating in cooling mode, the control module 12 obtains a first temperature difference based on the outer ring temperature and the cold outlet temperature and controls the external fan speed of the air conditioner based on the first temperature difference; and / or, when the air conditioner is operating in heating mode, the control module 12 obtains a second temperature difference based on the return air temperature and the coil temperature and controls the external fan speed of the air conditioner based on the second temperature difference.

[0105] In some embodiments, the control module 12 obtains the current external fan speed of the air conditioner; determines the first temperature difference interval in which the first temperature difference is located; when the first temperature difference is within the first preset temperature difference interval, controls the air conditioner to maintain the current external fan speed of the air conditioner; when the first temperature difference is not within the first preset temperature difference interval, controls the air conditioner to perform the first external fan speed adjustment operation.

[0106] In some embodiments, the control module 12 determines a slope K based on a first temperature difference interval in which the first temperature difference is located, wherein the slope K is the adjustment value of the speed of the external and internal fans per unit time; based on the slope K and the formula R=R0+Kt, the air conditioner is controlled to perform a first external fan speed adjustment operation, wherein R is the adjusted external fan speed, R0 is the current external fan speed of the air conditioner, t is the duration for the air conditioner to perform the first external fan speed adjustment operation and t is less than or equal to a first preset duration.

[0107] In some embodiments, the control module 12 obtains the current external fan speed of the air conditioner; determines the second temperature difference interval in which the second temperature difference is located; when the second temperature difference is within the second preset temperature difference interval, controls the air conditioner to maintain the current external fan speed of the air conditioner; when the second temperature difference is not within the second preset temperature difference interval, controls the air conditioner to perform a second external fan speed adjustment operation.

[0108] In some embodiments, the control module 12 determines a slope K based on a second temperature difference interval in which the second temperature difference is located, wherein the slope K is the adjustment value of the speed of the external and internal fans per unit time; based on the slope K and the formula R=R0+Kt, the air conditioner is controlled to perform a second external fan speed adjustment operation, wherein R is the adjusted external fan speed, R0 is the current external fan speed of the air conditioner, and t is the duration for the air conditioner to perform the second external fan speed adjustment operation and t is less than or equal to a second preset duration.

[0109] In some embodiments, when the air conditioner is operating in cooling mode, the acquisition module 11 acquires the outer ring temperature and the cold outlet temperature at intervals of a third preset time length; and / or, when the air conditioner is operating in heating mode, the acquisition module 11 acquires the return air temperature and the coil temperature at intervals of a fourth preset time length.

[0110] It is understood by those skilled in the art that the present invention implements all or part of the processes in the method of the above embodiment, and can also be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable storage medium may include: any entity or device, medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory, random access memory, electric carrier signal, telecommunication signal and software distribution medium that can carry the computer program code. It should be noted that the content contained in the computer-readable storage medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable storage media do not include electric carrier signals and telecommunication signals.

[0111] Furthermore, the present invention also provides an air conditioner.

[0112] See attached Figure 7 , Figure 7 Schematic diagram of the module structure of an air conditioner to which the air conditioner control method of the present invention is applied. Figure 7 As shown, the present invention also provides an air conditioner, the air conditioner 2 comprises an air conditioner body, a memory 21, a processor 22, and a computer program stored in the memory 21 and executable on the processor, and the processor 22 implements any of the air conditioner control methods described in the above method embodiments when executing the computer program. For ease of explanation, only the parts related to the embodiments of the present invention are shown, and for specific technical details not disclosed, please refer to the method part of the embodiments of the present invention.

[0113] The memory 21 may be an internal storage unit of the air conditioner 2, for example, a hard disk or memory of the air conditioner 2. The memory 21 may also be an external storage device of the air conditioner 2, for example, a plug-in hard disk, a smart memory card (SmartMedia Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), etc. equipped on the air conditioner. Further, the memory 21 may also include both an internal storage unit and an external storage device of the air conditioner 2. The memory 21 is used to store computer programs and other programs and data required by the air conditioner 2. The memory 21 may also be used to temporarily store data that has been output or is to be output.

[0114] The processor 22 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

[0115] In some possible implementations, the air conditioner 2 may include multiple memories 21 and multiple processors 22. The program for executing the air conditioning control method of the above method embodiment may be divided into multiple subprograms, each of which may be loaded and run by the processor 22 to execute different steps of the air conditioning control method of the above method embodiment. Specifically, each subprogram may be stored in different memories 21, and each processor 22 may be configured to execute the programs in one or more memories 21 to jointly implement the air conditioning control method of the above method embodiment, that is, each processor 22 executes different steps of the air conditioning control method of the above method embodiment to jointly implement the air conditioning control method of the above method embodiment.

[0116] The above-mentioned multiple processors 22 can be processors deployed on the same device, for example, the multiple processors 22 can all be processors configured on the air conditioner 2; in addition, the above-mentioned multiple processors 22 can also be processors deployed on different devices, for example, the multiple processors 22 can be processors on the air conditioner 2 and processors on the cloud server respectively.

[0117] Furthermore, the present invention also provides a computer-readable storage medium. In a computer-readable storage medium embodiment according to the present invention, the computer-readable storage medium can be configured to store a program for executing the air conditioning control method of the above-mentioned method embodiment, and the program can be loaded and run by the processor to implement the above-mentioned air conditioning control method. For ease of explanation, only the parts related to the embodiment of the present invention are shown. For specific technical details not disclosed, please refer to the method part of the embodiment of the present invention. The computer-readable storage medium can be a storage device formed by various electronic devices. Optionally, the computer-readable storage medium in the embodiment of the present invention is a non-temporary computer-readable storage medium.

[0118] Further, it should be understood that since the setting of each module is only for illustrating the functional units of the device of the present invention, the physical devices corresponding to these modules may be the processor itself, or a part of the software in the processor, a part of the hardware, or a part of the combination of software and hardware. Therefore, the number of each module in the figure is only schematic.

[0119] Those skilled in the art will appreciate that the modules in the device can be adaptively split or merged. Such splitting or merging of specific modules will not cause the technical solution to deviate from the principle of the present invention, and therefore, the technical solutions after splitting or merging will fall within the protection scope of the present invention.

[0120] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. An air conditioning control method, characterized in that: The method comprises the following steps: Obtaining the outer loop temperature and the cold outlet temperature of the air conditioner, and / or obtaining the return air temperature and the coil temperature of the air conditioner; Based on the outer ring temperature, the cold outlet temperature and / or the return air temperature and the coil temperature, the speed of the outer fan of the air conditioner is controlled.

2. The air conditioning control method according to claim 1, characterized in that: The step of "controlling the speed of the external fan of the air conditioner based on the external ring temperature and the cold outlet temperature and / or the return air temperature and the coil temperature" includes: When the air conditioner is operated in a cooling mode, a first temperature difference is obtained based on the outer ring temperature and the cold outlet temperature, and a speed of an outer fan of the air conditioner is controlled based on the first temperature difference; And / or, when the air conditioner is operated in a heating mode, a second temperature difference is obtained based on the return air temperature and the coil temperature, and a speed of an external fan of the air conditioner is controlled based on the second temperature difference.

3. The air conditioning control method according to claim 2, characterized in that: The step of "controlling the speed of the external fan of the air conditioner based on the first temperature difference" includes: Obtain the current external fan speed of the air conditioner; Determining a first temperature difference interval in which the first temperature difference is located; When the first temperature difference is within a first preset temperature difference interval, controlling the air conditioner to maintain a current speed of an external fan of the air conditioner; When the first temperature difference is not within the first preset temperature difference range, the air conditioner is controlled to perform a first external fan speed adjustment operation.

4. The air conditioning control method according to claim 3, characterized in that: The step of "controlling the air conditioner to perform a first external fan speed adjustment operation when the first temperature difference is not within the first preset temperature difference interval" includes: Determine a slope K based on a first temperature difference interval in which the first temperature difference is located, wherein the slope K is an adjustment value of the speed of the internal and external fans per unit time; Based on the slope K and the formula R=R0+Kt, the air conditioner is controlled to perform the first external fan speed adjustment operation, wherein R is the adjusted external fan speed, R0 is the current external fan speed of the air conditioner, and t is the duration for the air conditioner to perform the first external fan speed adjustment operation and t is less than or equal to the first preset duration.

5. The air conditioning control method according to claim 2, characterized in that: The step of "controlling the speed of the external fan of the air conditioner based on the second temperature difference" includes: Obtain the current external fan speed of the air conditioner; determining a second temperature difference interval in which the second temperature difference is located; When the second temperature difference is within a second preset temperature difference range, controlling the air conditioner to maintain a current speed of the external fan of the air conditioner; When the second temperature difference is not within the second preset temperature difference range, the air conditioner is controlled to perform a second external fan speed adjustment operation.

6. The air conditioning control method according to claim 5, characterized in that: The step of "controlling the air conditioner to perform a second external fan speed adjustment operation when the second temperature difference is not within the second preset temperature difference interval" includes: Determine a slope K based on a second temperature difference interval in which the second temperature difference is located, wherein the slope K is an adjustment value of the speed of the internal and external fans per unit time; Based on the slope K and the formula R=R0+Kt, the air conditioner is controlled to perform the second external fan speed adjustment operation, wherein R is the adjusted external fan speed, R0 is the current external fan speed of the air conditioner, and t is the duration for the air conditioner to perform the second external fan speed adjustment operation and t is less than or equal to the second preset duration.

7. The air conditioning control method according to claim 1, characterized in that: The step of "obtaining the outer ring temperature and the cold outlet temperature of the air conditioner, and / or obtaining the return air temperature and the coil temperature of the air conditioner" includes: When the air conditioner is operated in a cooling mode, obtaining the outer ring temperature and the cold outlet temperature at intervals of a third preset time; And / or, when the air conditioner is operated in a heating mode, the return air temperature and the coil temperature are obtained at intervals of a fourth preset time.

8. An air conditioning control device, characterized in that: The device comprises: An acquisition module is configured to acquire the outer loop temperature and the cold outlet temperature of the air conditioner, and / or acquire the return air temperature and the coil temperature of the air conditioner; The control module is configured to control the speed of the external fan of the air conditioner based on the external loop temperature and the cold outlet temperature and / or the return air temperature and the coil temperature.

9. An air conditioner, comprising an air conditioner body, a memory, and a processor, characterized in that: The memory stores machine executable instructions, and when the machine executable instructions are executed by the processor, the air conditioner can implement the air conditioner control method as described in any one of claims 1 to 7.

10. A readable storage medium storing a plurality of program codes, characterized in that: The program code is suitable for being loaded and run by a processor to execute the air conditioning control method according to any one of claims 1 to 7.

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