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

Abstract

The present application discloses a control method, a controller, an air conditioner and a storage medium for an air conditioner, wherein the control method for the air conditioner includes: when the air conditioner is in both the windless mode and the fresh air mode, obtaining the first setting gear of the indoor fan and the second setting gear of the fresh air fan, obtaining the indoor ambient temperature and the outdoor ambient temperature of the air conditioner, and determining the temperature difference correction coefficient according to the indoor ambient temperature and the outdoor ambient temperature, and controlling the speed of the fresh air fan based on the temperature difference correction coefficient, the first setting gear of the indoor fan and the second setting gear of the fresh air fan. When the air conditioner is running the fresh air mode and the windless mode at the same time, the temperature difference correction coefficient is incorporated into the speed control of the fresh air fan, and the working setting states of the indoor fan and the fresh air fan are taken into consideration, so that the fresh air mode and the windless mode can be coordinated to ensure that the indoor heat load is controllable and reduce the risk of condensation of the indoor unit.

Description

Technical Field

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

[0002] When the air conditioner is running in the windless mode, it often reduces the frequency, closes the valve and other actions to prevent condensation on the air conditioner panel. However, these actions will affect the unit's output capacity; when the air conditioner is running in the fresh air mode, it directly introduces outdoor air into the room, which has a greater impact on the indoor heat load and may even cause the indoor temperature to be too high, affecting the user's comfort experience. Compared with the indoor air, the fresh air introduces high-temperature and high-humidity air. When the windless mode and the fresh air mode are running at the same time, the air conditioner condensation, dripping and other problems are more obvious, and the stability of the indoor temperature faces greater challenges.

[0003] Therefore, there is an urgent need for a control method for an air conditioner that can ensure that the indoor heat load is controllable and reduce the risk of condensation in the indoor unit when the fresh air mode and the windless mode are running at the same time. Summary of the invention

[0004] The following is an overview of the subject matter described in detail herein. This overview is not intended to limit the scope of protection of this application.

[0005] The embodiments of the present application provide a control method, a controller, an air conditioner and a computer-readable storage medium for an air conditioner. The control method of the air conditioner of the present application can coordinate the fresh air mode and the windless mode when the fresh air mode and the windless mode are running at the same time, so as to ensure that the indoor heat load is controllable and reduce the risk of condensation in the indoor unit.

[0006] An embodiment of a first aspect of the present application provides a method for controlling an air conditioner, wherein the air conditioner includes an indoor fan and a fresh air fan, and the method includes:

[0007] When the air conditioner is in both the windless mode and the fresh air mode, obtaining a first setting gear position of the indoor fan and a second setting gear position of the fresh air fan;

[0008] Acquiring the indoor ambient temperature and the outdoor ambient temperature of the air conditioner, and determining a temperature difference correction coefficient according to the indoor ambient temperature and the outdoor ambient temperature;

[0009] The rotation speed of the fresh air fan is controlled based on the temperature difference correction coefficient, the first setting gear position of the indoor fan and the second setting gear position of the fresh air fan.

[0010] According to the technical solution of the embodiment of the present application, the control method of the present application is applied to an air conditioner including an indoor fan and a fresh air fan. When the air conditioner is running in the windless mode and the fresh air mode, the control method obtains the first setting gear of the indoor fan and the second setting gear of the fresh air fan, and obtains the indoor ambient temperature and the outdoor ambient temperature of the air conditioner, and then determines the temperature difference correction coefficient according to the indoor and outdoor ambient temperatures, and finally controls the speed of the fresh air fan based on the temperature difference correction coefficient, the first setting gear and the second setting gear. When the air conditioner is running in the fresh air mode and the windless mode at the same time, the temperature difference correction coefficient is incorporated into the speed control of the fresh air fan, and the working setting states of the indoor fan and the fresh air fan are taken into consideration, so that the fresh air mode and the windless mode can be coordinated to ensure that the indoor heat load is controllable and reduce the risk of condensation in the indoor unit.

[0011] In some embodiments, determining the temperature difference correction coefficient according to the indoor ambient temperature and the outdoor ambient temperature includes:

[0012] Determine the indoor and outdoor ambient temperature difference according to the indoor ambient temperature and the outdoor ambient temperature;

[0013] The temperature difference correction coefficient corresponding to the indoor and outdoor environment temperature difference is determined according to a preset corresponding relationship table.

[0014] In some embodiments, before controlling the speed of the fresh air fan based on the temperature difference correction coefficient, the first setting gear of the indoor fan, and the second setting gear of the fresh air fan, the method further includes:

[0015] Obtaining a preset speed range of the fresh air fan;

[0016] The controlling the speed of the fresh air fan based on the temperature difference correction coefficient, the first setting gear of the indoor fan and the second setting gear of the fresh air fan comprises:

[0017] Determining an upper limit value of a speed of the fresh air fan according to the temperature difference correction coefficient, the first setting gear of the indoor fan, and a preset speed range of the fresh air fan;

[0018] Determining a speed operating value of the fresh air fan according to the second set gear position and the preset speed range of the fresh air fan;

[0019] The speed of the fresh air fan is controlled based on the speed upper limit value and the speed operating value.

[0020] In some embodiments, the speed control of the fresh air fan based on the speed upper limit value and the speed operating value includes:

[0021] When the speed operating value is greater than the speed upper limit value, the speed of the fresh air fan is set to the speed upper limit value; or,

[0022] When the speed operating value is less than or equal to the speed upper limit value, the speed of the fresh air fan is set to the speed operating value.

[0023] In some embodiments, determining the speed upper limit of the fresh air fan according to the temperature difference correction coefficient, the first setting gear of the indoor fan, and the preset speed range of the fresh air fan includes:

[0024] Determining a first windshield ratio of the first setting gear according to the first setting gear of the indoor fan;

[0025] Determine the minimum speed value and the speed interval value of the preset speed interval according to the preset speed interval of the fresh air fan;

[0026] Determine a first speed increase value according to the speed interval value, the first windshield proportion and the temperature difference correction coefficient;

[0027] The upper limit value of the speed of the fresh air fan is determined according to the minimum speed value and the first speed increase value.

[0028] In some embodiments, determining the speed operating value of the fresh air fan according to the second set gear position and the preset speed range of the fresh air fan includes:

[0029] Determining a second windshield proportion of the second setting gear according to the second setting gear of the fresh air fan;

[0030] Determine the minimum speed value and the speed interval value of the preset speed interval according to the preset speed interval of the fresh air fan;

[0031] Determining a second speed increase value according to the speed interval value and the second windshield proportion;

[0032] The speed operating value of the fresh air fan is determined according to the minimum speed value and the second speed increase value.

[0033] In some embodiments, before obtaining the first setting gear position of the indoor fan and the second setting gear position of the fresh air fan, the method further includes:

[0034] When the air conditioner is in the windless mode, receiving a fresh air mode start signal and starting the fresh air mode, so that the air conditioner is in the windless mode and the fresh air mode at the same time;

[0035] The speed control of the fresh air fan comprises:

[0036] After the fresh air fan runs for a first working time, the speed of the fresh air fan is controlled.

[0037] In some embodiments, before obtaining the first setting gear position of the indoor fan and the second setting gear position of the fresh air fan, the method further includes:

[0038] When the air conditioner is in the fresh air mode, receiving a start signal of the no wind mode and starting the no wind mode, so that the air conditioner is in the no wind mode and the fresh air mode at the same time;

[0039] The speed control of the fresh air fan comprises:

[0040] After the fresh air fan runs for the second working time, the rotation speed of the fresh air fan is controlled.

[0041] An embodiment of the second aspect 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 when the processor executes the computer program, the air conditioner control method as described in any one of the embodiments of the first aspect above is implemented.

[0042] An embodiment of the third aspect of the present application provides an air conditioner, comprising the controller as described in the second aspect of the present application.

[0043] An embodiment of the fourth aspect 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 any one of the embodiments of the first aspect above.

[0044] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or understood by practicing the present application. The purpose and other advantages of the present application can be realized and obtained through the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 is a flow chart of a method for controlling an air conditioner provided in an embodiment of the present application;

[0046] Figure 2 is a flow chart of a method for controlling an air conditioner provided in another embodiment of the present application;

[0047] Figure 3 is a flow chart of a method for controlling an air conditioner provided in another embodiment of the present application;

[0048] Figure 4 is a flow chart of a method for controlling an air conditioner provided in another embodiment of the present application;

[0049] Figure 5 is a flow chart of a method for controlling an air conditioner provided in another embodiment of the present application;

[0050] Figure 6 is a flow chart of a method for controlling an air conditioner provided in another embodiment of the present application;

[0051] Figure 7 It is a schematic diagram of the structure of the controller provided in the embodiment of the present application. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is further described in detail below in conjunction with the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. In addition, the characteristics, operations or features described in the specification can be combined in any appropriate manner to form various implementation methods. At the same time, the steps or actions in the method description can also be replaced or adjusted in order in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the accompanying drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a necessary sequence, unless otherwise specified that a certain sequence must be followed.

[0053] 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.

[0054] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0055] 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.

[0056] When the air conditioner is running in the windless mode, it often reduces the frequency, closes the valve and other actions to prevent condensation on the air conditioner panel. However, these actions will affect the unit's output capacity; when the air conditioner is running in the fresh air mode, it directly introduces outdoor air into the room, which has a greater impact on the indoor heat load and may even cause the indoor temperature to be too high, affecting the user's comfort experience. Compared with the indoor air, the fresh air introduces high-temperature and high-humidity air. When the windless mode and the fresh air mode are running at the same time, the air conditioner condensation, dripping and other problems are more obvious, and the stability of the indoor temperature faces greater challenges.

[0057] Therefore, there is an urgent need for a control method for an air conditioner that can take into account both controllable indoor heat load and reduced condensation risk of the indoor unit when operating the fresh air mode and the windless mode at the same time.

[0058] Based on this, the embodiments of the present application provide a control method, controller, air conditioner and computer-readable storage medium for an air conditioner, which can coordinate the fresh air mode and the windless mode when the fresh air mode and the windless mode are running at the same time, ensure that the indoor heat load is controllable and reduce the risk of condensation in the indoor unit.

[0059] The embodiments of the present application are further described below in conjunction with the accompanying drawings.

[0060] First, the control method of the air conditioner provided by the embodiment of the present application is described. Figure 1 As shown, Figure 1 1 is a flow chart of a control method for an air conditioner provided by an embodiment of the present application. The control method for an air conditioner of the embodiment of the present application, the air conditioner includes an indoor fan and a fresh air fan, and the control method for the air conditioner includes but is not limited to step S110, step S120 and step S130:

[0061] Step S110, when the air conditioner is in both the windless mode and the fresh air mode, obtaining a first setting gear of the indoor fan and a second setting gear of the fresh air fan.

[0062] In some embodiments, before obtaining the first setting gear of the indoor fan and the second setting gear of the fresh air fan, the method further includes:

[0063] When the air conditioner is in the windless mode, receiving a fresh air mode start signal and starting the fresh air mode, so that the air conditioner is in the windless mode and the fresh air mode at the same time;

[0064] The speed control of the fresh air fan includes:

[0065] After the fresh air fan runs for the first working time, the speed of the fresh air fan is controlled.

[0066] It is understandable that when the air conditioner is in the windless mode, it receives the start signal of the fresh air mode and turns on the fresh air mode, that is, the fresh air mode is not turned on when the windless mode is running, and during the operation of the windless mode, the air conditioner receives the start signal of the windless mode, and the air conditioner is in a working state where the fresh air mode and the windless mode are running simultaneously, and the speed of the fresh air fan is controlled by the control method of the air conditioner provided in the embodiment of the present application. Specifically, after the fresh air fan runs for the first working time, the speed of the fresh air fan is controlled. It is also understandable that the fresh air fan runs for the first working time with the fresh air setting windshield or the automatic windshield.

[0067] It should be understood that at the initial stage of fresh air mode, the windshield is set with fresh air or the automatic windshield is operated for the first working time, so that fresh air can be replaced in time to ensure indoor air quality.

[0068] In another specific embodiment, the first working time T1 is 2 to 30 minutes.

[0069] It should be understood that those skilled in the art can select the length of the first working time according to actual conditions.

[0070] It is also understandable that if the no-wind mode is not turned on, the air conditioner will operate in the fresh air mode according to the original control function.

[0071] In some embodiments, before obtaining the first setting gear of the indoor fan and the second setting gear of the fresh air fan, the method further includes:

[0072] When the air conditioner is in the fresh air mode, receiving a start signal of the no-wind mode and starting the no-wind mode, so that the air conditioner is in the no-wind mode and the fresh air mode at the same time;

[0073] The speed control of the fresh air fan includes:

[0074] After the fresh air fan runs for the second working time, the rotation speed of the fresh air fan is controlled.

[0075] It is understandable that when the air conditioner is in the fresh air mode, it receives the start signal of the no-wind mode and turns on the no-wind mode, that is, the no-wind mode is not turned on when the fresh air mode is running, and during the operation of the fresh air mode, the air conditioner receives the start signal of the no-wind mode, and the air conditioner is in a working state where the no-wind mode and the fresh air mode are running simultaneously, then the speed of the fresh air fan is controlled by the control method of the air conditioner provided in the embodiment of the present application, specifically, after the fresh air fan runs for the second working time, the speed of the fresh air fan is controlled. It is also understandable that the fresh air fan runs for the second working time with a set windshield or an automatic windshield.

[0076] It should be understood that at the initial stage of the fresh air mode, the fresh air setting windshield or automatic windshield operation for the second working time can replace the air in time and determine the indoor air quality.

[0077] In another specific embodiment, the second working time T2 is 1 to 30 minutes.

[0078] It should be understood that those skilled in the art can select the length of the second working time according to actual conditions.

[0079] It is understandable that the air conditioner runs in fresh air mode and no wind mode at the same time, and there is a situation where the fresh air mode and the no wind mode are turned on successively. According to different opening sequences, after the fresh air fan runs for different working times according to the fresh air setting windshield or automatic windshield, the speed of the fresh air fan is controlled. The speed control process of the fresh air fan can be adjusted in a targeted manner to further improve indoor comfort.

[0080] It should be understood that if the air conditioner accepts the fresh air mode and the no wind mode at the same time, and the fresh air mode and the no wind mode are turned on at the same time, the speed of the fresh air fan can be controlled after the fresh air fan runs for the third working time.

[0081] It should be understood that when the no-wind mode and the fresh air mode are running at the same time, the first setting gear of the indoor fan and the second setting gear of the fresh air mode are obtained. For the first setting gear of the indoor fan, it is assumed that the windshield of the indoor fan of the air conditioner is preset with three gears: low windshield, middle windshield and high windshield, and the first setting gear of the indoor fan is one of the three gears of low windshield, middle windshield and high windshield. Similarly, for the second setting gear of the fresh air fan, it is assumed that the windshield of the fresh air fan of the air conditioner is preset with three gears: low windshield, middle windshield and high windshield, and the second setting gear of the fresh air fan is one of the three gears of low windshield, middle windshield and high windshield.

[0082] Step S120, obtaining the indoor ambient temperature and the outdoor ambient temperature of the air conditioner, and determining a temperature difference correction coefficient according to the indoor ambient temperature and the outdoor ambient temperature.

[0083] It can be understood that the indoor ambient temperature and outdoor ambient temperature of the air-conditioning system are collected by a temperature sensor connected to the air conditioner by wire or wirelessly, wherein the temperature sensor can be any one of the following common temperature sensors such as thermocouple sensor, thermistor sensor, resistance temperature detector or IC temperature sensor, and a combination of any common temperature sensors. Those skilled in the art can select a temperature sensor or any other method for obtaining the indoor ambient temperature and the outdoor ambient temperature according to actual conditions. This embodiment does not constitute a limitation on the step of obtaining the indoor ambient temperature and the outdoor ambient temperature of the air conditioner. This step includes obtaining the indoor ambient temperature and the outdoor ambient temperature through a temperature sensor, or manually inputting the indoor ambient temperature, the outdoor ambient temperature and related parameters to obtain the indoor ambient temperature and the outdoor ambient temperature of the air conditioner.

[0084] It should be noted that the air conditioner includes but is not limited to an indoor unit, an outdoor unit and a controller. The indoor ambient temperature of the air conditioner may be the ambient temperature of the indoor unit, and the outdoor ambient temperature of the air conditioner may be the ambient temperature of the outdoor unit.

[0085] It is understandable that the temperature difference correction coefficient for adjusting the speed of the fresh air fan can be determined by the indoor ambient temperature and the outdoor ambient temperature. In some embodiments, Figure 2 As shown, Figure 2 1 is a flow chart of a control method for an air conditioner provided by an embodiment of the present application. The control method for the air conditioner determines the temperature difference correction coefficient according to the indoor ambient temperature and the outdoor ambient temperature, including but not limited to step S210 and step S220:

[0086] Step S210, determining the indoor and outdoor ambient temperature difference according to the indoor ambient temperature and the outdoor ambient temperature;

[0087] Step S220, determining the temperature difference correction coefficient corresponding to the indoor and outdoor environment temperature difference according to a preset corresponding relationship table.

[0088] Exemplarily, the indoor ambient temperature of the air conditioner is T1=N, and the outdoor ambient temperature of the air conditioner is T2=M. The indoor and outdoor ambient temperature difference ΔT=MN is determined based on the indoor ambient temperature T1 and the outdoor ambient temperature T2, and then the temperature difference correction coefficient α corresponding to the indoor and outdoor ambient temperature difference ΔT is determined according to a preset correspondence table.

[0089] It can be understood that the corresponding relationship table represents the corresponding relationship between the indoor and outdoor environment temperature difference ΔT and the temperature difference correction coefficient α. In some embodiments, the corresponding relationship table is shown in Table (1):

[0090] Table (1)

[0091]

[0092] That is, when the indoor and outdoor temperature difference ΔT is less than -3, the temperature difference correction coefficient corresponding to the indoor and outdoor temperature difference ΔT is determined to be α1; when the indoor and outdoor temperature difference ΔT is less than 2 and greater than or equal to -3, the temperature difference correction coefficient corresponding to the indoor and outdoor temperature difference ΔT is determined to be α2; when the indoor and outdoor temperature difference ΔT is less than 5 and greater than or equal to 2, the temperature difference correction coefficient corresponding to the indoor and outdoor temperature difference ΔT is determined to be α3; when the indoor and outdoor temperature difference ΔT is less than 8 and greater than or equal to 5, the temperature difference correction coefficient corresponding to the indoor and outdoor temperature difference ΔT is determined to be α4; when the indoor and outdoor temperature difference ΔT is greater than or equal to 8, the temperature difference correction coefficient corresponding to the indoor and outdoor temperature difference ΔT is determined to be α5.

[0093] In a specific embodiment, the temperature difference correction coefficient α1 is 0.5 to 1, the temperature difference correction coefficient α2 is 0.9 to 1.5, the temperature difference correction coefficient α3 is 0.5 to 1, the temperature difference correction coefficient α4 is 0.2 to 1, and the temperature difference correction coefficient α5 is 0.1 to 1.

[0094] Step S130, controlling the speed of the fresh air fan based on the temperature difference correction coefficient, the first setting gear of the indoor fan and the second setting gear of the fresh air fan.

[0095] When the air conditioner is in the windless mode and the fresh air mode, the indoor and outdoor ambient temperatures of the air conditioner and the working setting status of the indoor fan are taken into consideration for the speed control of the fresh air fan. The speed of the fresh air fan is adaptively adjusted to control the fresh air volume, thereby achieving the effects of controllable indoor heat load, low condensation risk of the indoor unit, and high user comfort experience.

[0096] In some embodiments, in the control method of the air conditioner, before controlling the speed of the fresh air fan based on the temperature difference correction coefficient, the first setting gear of the indoor fan and the second setting gear of the fresh air fan, the method further includes:

[0097] Obtaining a preset speed range of the fresh air fan;

[0098] It should be noted that the two end points of the speed range of the fresh air fan are the maximum speed and the minimum speed of the fresh air fan when it is running independently.

[0099] like Figure 3 As shown, Figure 3 1 is a flow chart of a control method for an air conditioner provided by an embodiment of the present application. In the control method for the air conditioner, the speed of the fresh air fan is controlled based on the temperature difference correction coefficient, the first setting gear of the indoor fan and the second setting gear of the fresh air fan, including but not limited to step S310, step S320 and step S330:

[0100] Step S310, determining an upper limit value of the speed of the fresh air fan according to the temperature difference correction coefficient, the first setting gear of the indoor fan and the preset speed range of the fresh air fan.

[0101] Based on the indoor and outdoor ambient temperature of the air conditioner and the working setting state of the indoor fan, the speed limit of the fresh air fan is corrected when the air conditioner is running in fresh air mode and no wind mode at the same time to adjust the fresh air volume. In the process of running the fresh air mode, it can avoid excessive indoor temperature rise caused by too much fresh air when cooling at high temperature, and excessive cooling load in the room when cooling at low temperature, frequent cooling shutdown when reaching the temperature, resulting in reduced indoor comfort, so as to achieve controllable indoor heat load and reduce the risk of condensation.

[0102] In some embodiments, Figure 5 As shown, Figure 5 1 is a flow chart of a control method for an air conditioner provided by an embodiment of the present application. In the control method for the air conditioner, the speed upper limit of the fresh air fan is determined according to the temperature difference correction coefficient, the first setting gear of the indoor fan and the preset speed range of the fresh air fan, including but not limited to step S510, step S520, step S530 and step S540:

[0103] Step S510, determining a first windshield ratio of the first setting gear according to the first setting gear of the indoor fan;

[0104] Step S520, determining a minimum speed value and a speed interval value of the preset speed interval according to the preset speed interval of the fresh air fan;

[0105] Step S530, determining a first speed increase value according to the speed interval value, the first windshield proportion and the temperature difference correction coefficient;

[0106] Step S540, determining an upper limit value of the speed of the fresh air fan according to the minimum speed value and the first speed increase value.

[0107] In step S510, for example, the windshield of the indoor fan of the air conditioner is preset with three gears of low windshield, middle windshield and high windshield. Specifically, the windshield ratio is determined according to the indoor fan speeds corresponding to the three gears. For example, the indoor unit speeds corresponding to the low windshield, middle windshield and high windshield are N1, N2 and N3 respectively, then the windshield ratio θ1 of the low windshield is N1 / N3, the windshield ratio θ2 of the middle windshield is N2 / N3, and the windshield ratio of the high windshield θ3 is N3 / N3=100%; or,

[0108] The windshield ratio is determined according to the number of gears. For example, if there are three indoor fan gears preset: low windshield, medium windshield and high windshield, the windshield ratio θ1 of the low windshield is 1 / 3, the windshield ratio θ2 of the medium windshield is 2 / 3, and the windshield ratio θ3 of the high windshield is 3 / 3; for another example, if there are five indoor unit gears preset: low windshield, medium-low windshield, medium windshield, medium-high windshield and high windshield, the windshield ratio θ1 of the low windshield is 1 / 5, the windshield ratio θ2 of the medium-low windshield is 2 / 5, the windshield ratio θ3 of the medium windshield is 3 / 5, the windshield ratio θ4 of the medium-high windshield is 4 / 5, and the windshield ratio θ5 of the high windshield is 5 / 5=100%.

[0109] In step S520, for example, the preset speed range of the fresh air fan is [600, 1000]. It can be known that the maximum speed N of the fresh air fan when it is running independently is nax =1000 and the minimum speed N min =600, then the speed interval value N R = Maximum speed N max -Minimum speed N min =400.

[0110] In step S530 and step S540, the first speed increase value based on the minimum speed value is determined according to the temperature difference correction coefficient, the first windshield ratio and the speed interval value. Specifically, the product of the speed interval value, the first windshield ratio and the temperature difference correction coefficient is calculated to obtain the first speed increase value, and finally the first speed increase value is added to the minimum speed value to obtain the speed upper limit value of the fresh air fan. Exemplarily, the speed upper limit value N′ nax = minimum speed N min +Speed ​​range value N R *The first windshield ratio θ*temperature difference correction coefficient α.

[0111] Step S320, determining the speed operating value of the fresh air fan according to the second set gear position and the preset speed range of the fresh air fan.

[0112] Based on the second setting gear of the fresh air fan and the preset speed range, the speed operating value of the fresh air fan is determined when the air conditioner operates in the fresh air mode and the no wind mode at the same time. Compared with the fresh air fan running alone, by reducing the speed of the fresh air fan to reduce the fresh air volume, it can further ensure that the indoor heat load is controllable and the risk of condensation is reduced.

[0113] In some embodiments, Figure 6 As shown, Figure 61 is a flow chart of a control method for an air conditioner provided by an embodiment of the present application. In the control method for the air conditioner, the speed operating value of the fresh air fan is determined according to the second set gear position and the preset speed range of the fresh air fan, including but not limited to step S610, step S620, step S630 and step S640:

[0114] Step S610, determining a second windshield ratio of the second setting gear according to the second setting gear of the fresh air fan;

[0115] Step S620, determining a minimum speed value and a speed interval value of the preset speed interval according to the preset speed interval of the fresh air fan;

[0116] Step S630, determining a second speed increase value according to the speed interval value and the second windshield proportion;

[0117] Step S640, determining the speed operating value of the fresh air fan according to the minimum speed value and the second speed increase value.

[0118] For the specific process and description of step S610 and step S620, reference may be made to the specific description of step S510 and step S520 in the above embodiment, which will not be repeated here.

[0119] In step S630 and step S640, the second speed increase value based on the minimum speed value is determined according to the second windshield ratio and the speed interval value. Specifically, the product of the speed interval value and the second windshield ratio is calculated to obtain the second speed increase value, and finally the second speed increase value is added to the minimum speed value to obtain the speed operation value of the fresh air fan. Exemplarily, the speed operation value = minimum speed value + speed interval value * second windshield ratio.

[0120] Step S330: Control the speed of the fresh air fan based on the speed upper limit value and the speed operating value.

[0121] After obtaining the speed upper limit value and speed operating value of the fresh air fan respectively through the temperature difference correction coefficient, the first setting gear of the indoor fan and the second setting gear of the fresh air fan, the speed of the fresh air fan is controlled based on the speed upper limit value and the speed operating value.

[0122] It is understandable that by determining the speed upper limit value through the temperature difference correction parameter and the first set windshield of the indoor fan and other parameters, when there is a different temperature difference between indoor and outdoor and the indoor fan is in different working setting states, the maximum speed of the fresh air fan when the air conditioner is running in the windless mode and the fresh air mode at the same time can be adjusted in a targeted manner. At the same time, by determining the speed operating value through the second set windshield of the fresh air fan and the preset speed range and other parameters, the actual speed of the fresh air fan when the air conditioner is running in the windless mode and the fresh air mode at the same time can be adaptively adjusted, so as to control the fresh air volume based on the speed upper limit value and the speed operating value, so as to achieve controllable indoor heat load and reduce the risk of condensation in the indoor unit.

[0123] In some embodiments, Figure 4 As shown, Figure 4 The flowchart of the control method of the air conditioner provided by an embodiment of the present application is shown in FIG. Based on the speed upper limit value and the speed operation value, the speed of the fresh air fan is controlled, including but not limited to step S410 and step S420:

[0124] Step S410, when the speed operation value is greater than the speed upper limit value, setting the speed of the fresh air fan to the speed upper limit value; or,

[0125] Step S420, when the speed operating value is less than or equal to the speed upper limit value, the speed of the fresh air fan is set to the speed operating value.

[0126] It should be understood that in the speed control of the fresh air fan, when the obtained speed operating value is greater than the speed upper limit value, the speed of the fresh air fan is set to the speed upper limit value, and when the speed operating value is less than or equal to the speed upper limit value, the speed of the fresh air fan is set to the speed operating value.

[0127] It can also be understood that the steps provided in the above embodiment are equivalent to:

[0128] When the speed operating value is greater than or equal to the speed upper limit value, the speed of the fresh air fan is set to the speed upper limit value; or,

[0129] When the speed operating value is less than the speed upper limit value, the speed of the fresh air fan is set to the speed operating value.

[0130] According to the technical solution of the embodiment of the present application, the control method of the present application is applied to an air conditioner including an indoor fan and a fresh air fan. When the air conditioner is running in the windless mode and the fresh air mode, the control method obtains the first setting gear of the indoor fan and the second setting gear of the fresh air fan, and obtains the indoor ambient temperature and the outdoor ambient temperature of the air conditioner, and then determines the temperature difference correction coefficient according to the indoor and outdoor ambient temperatures, and finally controls the speed of the fresh air fan based on the temperature difference correction coefficient, the first setting gear and the second setting gear. When the air conditioner is running in the fresh air mode and the windless mode at the same time, the temperature difference correction coefficient is incorporated into the speed control of the fresh air fan, and the working setting states of the indoor fan and the fresh air fan are taken into consideration, so that the fresh air mode and the windless mode can be coordinated to ensure that the indoor heat load is controllable and reduce the risk of condensation in the indoor unit.

[0131] Based on the above-mentioned control method of the air conditioner, various embodiments of the controller, air conditioner and computer-readable storage medium of the present application are respectively proposed below.

[0132] like Figure 7 As shown, Figure 7 It is a schematic diagram of the architecture of a controller for executing a method for controlling an air conditioner provided in one embodiment of the present application.

[0133] Some embodiments of the present application provide a controller, the controller comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, the processor implementing the control method of the air conditioner of any of the above embodiments when executing the computer program, for example, executing the above described Figure 1 Steps S110 to S130 of the method, Figure 2 Steps S210 to S220 of the method, Figure 3 Steps S310 to S330 of the method, Figure 4 Step S410 and step S420 of the method, Figure 5 Steps S510 to S540 of the method, Figure 6 Method steps S610 to S640.

[0134] The controller 700 of the embodiment of the present application includes one or more processors 701 and a memory 702. Figure 7 In the figure, a processor 701 and a memory 702 are taken as an example.

[0135] The processor 701 and the memory 702 may be connected via a bus or other means. Figure 7 The example of connecting through bus is taken in the following.

[0136] The memory 702, 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 702 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 702 may optionally include a memory 702 remotely disposed relative to the processor 701, and these remote memories may be connected to the controller 700 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.

[0137] Those skilled in the art will understand that Figure 7 The device structure shown in the figure does not constitute a limitation on the controller 700, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0138] exist Figure 7 In the controller 700 shown, the processor 701 can be used to call the air conditioner control program stored in the memory 702, so as to implement the air conditioner control method.

[0139] Based on the hardware structure of the controller 700 described above, various embodiments of the air conditioner of the present application are proposed.

[0140] Specifically, the air conditioner of the embodiment of the present application includes but is not limited to an indoor unit, an outdoor unit and a controller, wherein the indoor unit is provided with an indoor heat exchange module and an indoor fan, the outdoor unit is provided with a compressor, a vapor-liquid separator, a refrigerant pipeline switching module, an outdoor heat exchanger, a temperature sensor for detecting the outdoor heat exchanger, an outdoor fan and a throttle valve, and the controller may include the following: Figure 7 A processor 701 and a memory 702 are shown.

[0141] It should be noted that the indoor heat exchanger may be an evaporator, or may be other equipment with heat exchange capability, which is not specifically limited in this embodiment. It is understandable that the indoor heat exchanger acts as a condensing end in the heating mode to dissipate heat for the refrigerant.

[0142] The outdoor heat exchanger may be an evaporator, or may be other equipment with heat exchange capability, which is not specifically limited in this embodiment. It is understandable that the outdoor heat exchanger acts as an evaporation end in the heating mode to absorb heat from the refrigerant.

[0143] It should be noted that the refrigerant pipeline switching module may be a four-way valve or a five-way valve according to different settings of the refrigerant pipeline, and this embodiment does not specifically limit it.

[0144] The non-transitory software program and instructions required to implement the air conditioner control method of the above embodiment are stored in the memory, and when executed by the processor, the air conditioner control method of the above embodiment is executed.

[0145] In addition, an embodiment of the present application also provides an air conditioner, which includes the above-mentioned controller.

[0146] It is worth noting that since the air conditioner of the embodiment of the present application has 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 the above-mentioned embodiment, the specific implementation manner and technical effects of the air conditioner 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.

[0147] The embodiment of the present application also provides a computer-readable storage medium, which stores computer-executable instructions, and the computer-executable instructions are used to execute the above-mentioned air conditioner control method, for example, it can enable the above-mentioned one or more processors to execute the air conditioner control method in the above-mentioned method embodiment, for example, to execute the above-mentioned Figure 1 Steps S110 to S130 of the method, Figure 2 Steps S210 to S220 of the method, Figure 3 Steps S310 to S330 of the method, Figure 4 Step S410 and step S420 of the method, Figure 5 Steps S510 to S540 of the method, Figure 6 Method steps S610 to S640.

[0148] The device embodiments described above are merely illustrative, and the units described as separate components may or may not be physically separated, that is, they may be located in one place or distributed on multiple network nodes. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0149] 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-readable 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-readable 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-readable 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 embodies 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.

[0150] The above is a specific description of the preferred implementation of the present application, but the present application is not limited to the above-mentioned implementation mode. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the present application. These equivalent deformations or substitutions are all included in the scope defined by the present application.

Claims

1. A method for controlling an air conditioner, characterized in that: The air conditioner comprises an indoor fan and a fresh air fan, and the method comprises: When the air conditioner is in both the windless mode and the fresh air mode, obtaining a first setting gear position of the indoor fan and a second setting gear position of the fresh air fan; Acquiring the indoor ambient temperature and the outdoor ambient temperature of the air conditioner, and determining a temperature difference correction coefficient according to the indoor ambient temperature and the outdoor ambient temperature; Based on the temperature difference correction coefficient, the first setting gear of the indoor fan and the second setting gear of the fresh air fan, the speed of the fresh air fan is controlled; The speed control of the fresh air fan based on the temperature difference correction coefficient, the first setting gear of the indoor fan and the second setting gear of the fresh air fan includes: The speed upper limit value is obtained according to the temperature difference correction coefficient, the first wind gear ratio determined by the first setting gear, the minimum speed value of the preset speed range of the fresh air fan, and the speed range value; Obtaining a speed operating value according to the second wind speed ratio determined by the second setting gear, the minimum speed value of the preset speed range of the fresh air fan, and the speed range value; The rotational speed of the fresh air fan is determined according to the magnitude relationship between the rotational speed upper limit value and the rotational speed operating value.

2. The air conditioner control method according to claim 1, characterized in that: The determining of the temperature difference correction coefficient according to the indoor ambient temperature and the outdoor ambient temperature comprises: Determine the indoor and outdoor ambient temperature difference according to the indoor ambient temperature and the outdoor ambient temperature; The temperature difference correction coefficient corresponding to the indoor and outdoor environment temperature difference is determined according to a preset corresponding relationship table.

3. The air conditioner control method according to claim 1, characterized in that: Determining the speed of the fresh air fan according to the magnitude relationship between the speed upper limit value and the speed operating value includes: When the speed operating value is greater than the speed upper limit value, the speed of the fresh air fan is set to the speed upper limit value; or, When the speed operating value is less than or equal to the speed upper limit value, the speed of the fresh air fan is set to the speed operating value.

4. The air conditioner control method according to claim 1, characterized in that: The speed upper limit value is obtained according to the temperature difference correction coefficient, the first wind gear ratio determined by the first setting gear, the minimum speed value of the preset speed range of the fresh air fan, and the speed range value, including: Determine a first speed increase value according to the speed interval value, the first wind speed ratio and the temperature difference correction coefficient; The upper limit value of the speed of the fresh air fan is determined according to the minimum speed value and the first speed increase value.

5. The air conditioner control method according to claim 1, characterized in that: The speed operation value is obtained according to the second wind gear ratio determined by the second setting gear, the minimum speed value of the preset speed range of the fresh air fan, and the speed range value, including: Determine a second speed increase value according to the speed interval value and the second wind speed ratio; The speed operating value of the fresh air fan is determined according to the minimum speed value and the second speed increase value.

6. The air conditioner control method according to claim 1, characterized in that: Before acquiring the first setting gear position of the indoor fan and the second setting gear position of the fresh air fan, the method further includes: When the air conditioner is in the windless mode, receiving a fresh air mode start signal and starting the fresh air mode, so that the air conditioner is in the windless mode and the fresh air mode at the same time; The speed control of the fresh air fan comprises: After the fresh air fan runs for a first working time, the rotation speed of the fresh air fan is controlled.

7. The air conditioner control method according to claim 1, characterized in that: Before acquiring the first setting gear position of the indoor fan and the second setting gear position of the fresh air fan, the method further includes: When the air conditioner is in the fresh air mode, receiving a start signal of the no wind mode and starting the no wind mode, so that the air conditioner is in the no wind mode and the fresh air mode at the same time; The speed control of the fresh air fan comprises: After the fresh air fan runs for the second working time, the rotation speed of the fresh air fan is controlled.

8. A controller, characterized in that: The invention comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the air conditioner control method as claimed in any one of claims 1 to 7 when executing the computer program.

9. An air conditioner, characterized in that: Comprising a controller as claimed in claim 8.

10. 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 of the air conditioner according to any one of claims 1 to 7.

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