Method, device, air conditioner and storage medium for controlling air conditioner

Abstract

The present application relates to the technical field of smart home appliances, and discloses a method for controlling an air conditioner, including: determining a target object to be blown with residual heat according to the operating state of the air conditioner; the target object includes an indoor unit and an outdoor unit; determining the residual heat blowing demand of the target object; when the residual heat blowing demand is for blowing residual heat, determining the residual heat blowing scheme of the target object according to the operating parameters of the air conditioner; and controlling the target object to operate according to the determined residual heat blowing scheme. In this way, not only the demand for blowing residual heat of the indoor unit is determined, but also the demand for blowing residual heat of the outdoor unit is determined. At the same time, combined with the real-time operating parameters of the air conditioner, a residual heat blowing scheme suitable for the target object is matched, so that the residual heat blowing effect for the target object is better, thereby improving the stability of the pressure relief of the air conditioning system. The present application also discloses a device for controlling an air conditioner, an air conditioner, and a storage medium.

Description

Technical Field

[0001] The present application relates to the technical field of smart home appliances, for example, to a method, device, air conditioner and storage medium for controlling an air conditioner. Background Art

[0002] After receiving the shutdown command, the air conditioner will generally run the residual cooling / residual heat blowing function. The purpose is to stabilize the system load relatively smoothly and avoid impacting the four-way valve and other components due to the sudden change in system pressure.

[0003] A control method for blowing residual heat of an air conditioner is disclosed in the related technology. After the air conditioner heating mode ends, the method also includes: when the compressor stops running, the indoor fan continues to run, and the current indoor unit operating wind speed is detected; according to the indoor unit operating wind speed and the preset monitoring wind speed, the indoor unit operating wind speed and the residual heat blowing time are adjusted; the indoor unit is controlled to blow residual heat according to the adjusted indoor unit operating wind speed and the residual heat blowing time.

[0004] In the above method, by controlling the indoor unit to blow the residual heat according to the adjusted indoor unit operating wind speed and residual heat blowing time, the technical problem of too low air outlet temperature caused by too long residual heat blowing time is solved, and the adjustment of the indoor unit operating wind speed and residual heat blowing time is achieved. However, this solution cannot guarantee the stable pressure relief of the system. Summary of the invention

[0005] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0006] Embodiments of the present disclosure provide a method, an apparatus, an air conditioner, and a storage medium for controlling an air conditioner, so as to improve the stability of pressure relief of an air conditioning system.

[0007] In some embodiments, the method includes: determining a target object for blowing residual heat according to the operating state of the air conditioner; the target object includes an indoor unit and an outdoor unit; determining the residual temperature blowing demand of the target object; when the residual temperature blowing demand is to blow residual temperature, determining the residual temperature blowing plan of the target object according to the operating parameters of the air conditioner; controlling the target object to operate according to the determined residual temperature blowing plan.

[0008] In some embodiments, the device includes: a processor and a memory storing program instructions, and the processor is configured to execute the aforementioned method for controlling an air conditioner when running the program instructions.

[0009] In some embodiments, the air conditioner includes: the aforementioned device for controlling the air conditioner.

[0010] In some embodiments, the storage medium stores program instructions, and when the program instructions are run, the aforementioned method for controlling an air conditioner is executed.

[0011] The method, device, air conditioner and storage medium for controlling an air conditioner provided in the embodiments of the present disclosure can achieve the following technical effects:

[0012] Based on the operating status of the air conditioner, determine whether the target object to be blown residual heat is the indoor unit or the outdoor unit. If the target object has a demand for blowing residual heat, match the blowing residual heat scheme of the target object based on the operating parameters of the air conditioner. In this way, not only the demand for blowing residual heat of the indoor unit is determined, but also the demand for blowing residual heat of the outdoor unit is determined. At the same time, combined with the real-time operating parameters of the air conditioner, match the blowing residual heat scheme suitable for the target object, so that the blowing residual heat effect for the target object is better, thereby improving the stability of the pressure relief of the air conditioning system.

[0013] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0015] Figure 1 is a schematic diagram of a method for controlling an air conditioner provided by an embodiment of the present disclosure;

[0016] Figure 2 is a schematic diagram of another method for controlling an air conditioner provided by an embodiment of the present disclosure;

[0017] Figure 3 is a schematic diagram of another method for controlling an air conditioner provided by an embodiment of the present disclosure;

[0018] Figure 4 is a schematic diagram of another method for controlling an air conditioner provided by an embodiment of the present disclosure;

[0019] Figure 5 is a schematic diagram of another method for controlling an air conditioner provided by an embodiment of the present disclosure;

[0020] Figure 6 is an application schematic diagram provided by an embodiment of the present disclosure;

[0021] Figure 7 is a schematic diagram of a device for controlling an air conditioner provided by an embodiment of the present disclosure;

[0022] Figure 8is a schematic diagram of another device for controlling an air conditioner provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0023] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0024] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0025] Unless otherwise stated, the term "plurality" means two or more.

[0026] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0027] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0028] The term "correspondence" may refer to an association relationship or a binding relationship. The correspondence between A and B means that there is an association relationship or a binding relationship between A and B.

[0029] Combination Figure 1 As shown, the embodiment of the present disclosure provides a method for controlling an air conditioner, comprising:

[0030] S101, the processor determines the target object to be blown away the residual heat according to the operating state of the air conditioner; the target object includes the indoor unit and the outdoor unit.

[0031] S102: The processor determines the residual temperature blowing requirement of the target object.

[0032] S103: When the residual heat blowing requirement is that residual heat blowing is required, the processor determines a residual heat blowing scheme for the target object according to operating parameters of the air conditioner.

[0033] S104, the processor controls the target object to operate according to the determined residual heat blowing scheme.

[0034] The operating state of the air conditioner is obtained. The operating state of the air conditioner may include the operating mode of the air conditioner and the start / stop state of the compressor. The start / stop state of the compressor may characterize the target object that may need to blow residual temperature. The operating mode of the air conditioner may further characterize the object that needs to blow residual temperature. Therefore, the target object to be blown residual temperature is determined according to the operating state of the air conditioner. Here, the target object includes an indoor unit and an outdoor unit. The target object may be one of the indoor unit or the outdoor unit, or may be an indoor unit and an outdoor unit. For the indoor unit, blowing residual temperature is manifested as blowing residual heat or blowing residual cold. For the outdoor unit, blowing residual temperature is manifested as blowing residual heat. Then the residual temperature blowing demand of the target object is further determined. The residual temperature blowing demand specifically includes the need to blow residual temperature and the need not to blow residual temperature. When the target object needs to blow residual temperature, the target parameters of the air conditioner are obtained. According to the current operating parameters of the air conditioner, the residual temperature blowing scheme of the target object is determined. Finally, the target object is controlled to operate according to the determined residual temperature blowing scheme. When blowing residual cold / residual heat, the corresponding fan continues to operate.

[0035] In the disclosed embodiment, based on the operating state of the air conditioner, it is determined whether the target object to be blown residual heat is the indoor unit or the outdoor unit. In the case where the target object has a demand for blowing residual heat, the blowing residual heat scheme of the target object is matched based on the operating parameters of the air conditioner. In this way, not only the demand for blowing residual heat of the indoor unit is determined, but also the demand for blowing residual heat of the outdoor unit is determined. At the same time, combined with the real-time operating parameters of the air conditioner, a blowing residual heat scheme suitable for the target object is matched, so that the blowing residual heat effect for the target object is better, thereby improving the stability of the pressure relief of the air conditioning system.

[0036] Optionally, at S101, the processor determines a target object to be blown residual heat according to the operating state of the air conditioner, including:

[0037] When the air conditioner is operating in a heating mode and the compressor is stopped, the processor determines that the target object of the residual temperature to be blown is the indoor unit.

[0038] When the air conditioner operates in a cooling mode and the compressor is stopped, the processor determines that the target objects of the residual heat to be blown are the indoor unit and the outdoor unit.

[0039] As can be seen from the above, the operating state of the air conditioner includes the air conditioner operating mode and the compressor start and stop state. Generally, when the air conditioner is running in cooling or heating mode, if it stops running, the system load (warmth) will change. Therefore, when the air conditioner stops running in cooling or heating mode, there will be a demand for blowing residual heat. Therefore, here, the air conditioner operating mode includes heating mode and cooling mode.

[0040] Blowing residual heat includes blowing residual heat and blowing residual cold. Blowing residual heat means blowing the side with high load, that is, blowing the condensing side (the indoor heat exchanger is the condenser during heating, and the outdoor heat exchanger is the condenser during cooling). Therefore, due to load reasons, the outdoor unit does not need to blow residual cold during heating. Therefore, when the air conditioner is running in heating mode and the compressor is stopped, the target object to be blown residual heat is determined to be the indoor unit. At this time, the compressor is stopped due to the air conditioner shutdown, indoor unit overload protection, exhaust protection, and overcurrent protection.

[0041] When the air conditioner is running in cooling mode and the compressor is stopped, it is determined that the target object to be blown of the residual heat is the outdoor unit. At this time, the compressor is stopped due to air conditioner shutdown, exhaust protection, overcurrent protection, or other protection.

[0042] When the air conditioner is running in cooling mode, components such as heat exchangers and electric heating elements will have residual cold. If the fan is directly controlled to stop, condensation will form on these components, causing the indoor system to be prone to bacteria and even mold due to moisture. Therefore, when the air conditioner is running in cooling mode and the compressor is stopped, the target object to be blown to the residual cold is determined to be the indoor unit. At this time, the compressor is stopped because the air conditioner is turned off. In this way, by blowing residual cold to the indoor unit, the cold of components such as heat exchangers and electric heating elements is taken away to reduce the probability of condensation.

[0043] Since the outdoor unit is set outdoors, the requirements for bacteria breeding, mildew prevention, etc. are relatively low. And because the outdoor heat exchanger is exposed to the outside environment, the moisture on the outdoor heat exchanger will evaporate quickly. Therefore, when the air conditioner is running in heating mode, there is no need for the outdoor unit to blow residual cooling.

[0044] In this way, the target object of the residual cold / heat to be blown is determined in combination with the operation mode of the air conditioner and the shutdown status of the compressor, so as to ensure the stability of the pressure relief of the air conditioning system or ensure the good sanitation of the air conditioning indoor system.

[0045] Optionally, combined Figure 2 As shown, the embodiment of the present disclosure provides another method for controlling an air conditioner, comprising:

[0046] S101, the processor determines the target object to be blown away the residual heat according to the operating state of the air conditioner; the target object includes the indoor unit and the outdoor unit.

[0047] S112: When the target object is an indoor unit, the processor determines an operation mode of the air conditioner.

[0048] S122: The processor determines the residual heat requirement of the indoor unit according to the operation mode of the air conditioner.

[0049] S132: When the target object is an outdoor unit, the processor detects a first parameter and a second parameter of the air conditioner operation.

[0050] S142: The processor determines the residual temperature requirement of the outdoor unit according to the first parameter and the second parameter.

[0051] S103: When the residual heat blowing requirement is that residual heat blowing is required, the processor determines a residual heat blowing scheme for the target object according to operating parameters of the air conditioner.

[0052] S104, the processor controls the target object to operate according to the determined residual heat blowing scheme.

[0053] As can be seen from the above, when the target object is the indoor unit, the operation mode of the air conditioner may be heating mode or cooling mode. In heating mode, the purpose of the indoor unit blowing residual heat is to avoid sudden changes in system load. In cooling mode, the purpose of the indoor unit blowing residual cold is to avoid condensation in the indoor system. The purposes in these two cases are different, so the blowing residual heat requirements will also be different. Therefore, according to the operation mode of the air conditioner, the blowing residual heat requirements of the indoor unit are determined to match different requirements.

[0054] When the target object is an outdoor unit, the air conditioner has a unique operating mode: cooling mode. The first parameter and the second parameter of the air conditioner operation are detected, and then the waste heat blowing demand of the outdoor unit is determined based on the first parameter and the second parameter. Optionally, the first parameter is the exhaust temperature of the compressor, and the second parameter is the outdoor ambient temperature. This is because the exhaust temperature can reflect the temperature of the outer coil, and the outdoor ambient temperature is the ambient temperature of the outer coil. The greater the difference between the exhaust temperature and the outdoor ambient temperature, the easier it is for the air conditioning system load to change suddenly, and the more the outdoor unit needs to blow waste heat. Therefore, the waste heat blowing demand of the outdoor unit can be determined based on the exhaust temperature and the outdoor ambient temperature.

[0055] Specifically, the first temperature difference threshold Ta1 is set according to the exhaust temperature T 排 The absolute value of the first difference ΔT1 between the outdoor ambient temperature Tao and the outdoor ambient temperature Tao, that is, |ΔT1|=|T 排 -Tao|, determine the waste heat blowing demand of the outdoor unit. When |ΔT1|<Ta1, it indicates that the exhaust temperature is not much different from the outdoor ambient temperature, and the air conditioning system can be stabilized. At this time, it is determined that the outdoor unit does not need to blow waste heat. When |ΔT1|≥Ta1, it indicates that the exhaust temperature is greatly different from the outdoor ambient temperature, and the air conditioning system load is prone to sudden changes. At this time, it is determined that the outdoor unit needs to blow waste heat. Optionally, Ta1 can be 10℃, or it can be adjusted according to actual needs.

[0056] In this way, based on the different target objects, the residual heat blowing requirements of the target objects are determined according to different conditions, so as to correctly judge whether the target objects have the residual heat blowing requirements, thereby facilitating the determination of the residual heat blowing scheme for the target objects.

[0057] Optionally, combined Figure 3As shown, the embodiment of the present disclosure provides another method for controlling an air conditioner, comprising:

[0058] S101, the processor determines the target object to be blown away the residual heat according to the operating state of the air conditioner; the target object includes the indoor unit and the outdoor unit.

[0059] S132: When the target object is an outdoor unit, the processor detects a first parameter and a second parameter of the air conditioner operation.

[0060] S142: The processor determines the residual temperature requirement of the outdoor unit according to the first parameter and the second parameter.

[0061] S113: When the residual heat blowing requirement is that residual heat blowing is required, the processor calculates an absolute value of a first difference between the first parameter and the second parameter.

[0062] S123: The processor determines the residual temperature blowing time of the outdoor unit and the fan speed of the outdoor unit according to the absolute value of the first difference.

[0063] S104, the processor controls the target object to operate according to the determined residual heat blowing scheme.

[0064] When it is determined according to the aforementioned logic that the outdoor unit needs to blow residual heat, the absolute value of the first difference between the first parameter and the second parameter is calculated, that is, |ΔT1|=|T 排 -Tao|. According to the absolute value of the first difference |ΔT1|, determine the residual heat blowing time t of the outdoor unit 外 and the outdoor fan (hereinafter referred to as "outdoor fan") speed R 外 The larger |ΔT1| is, the greater the degree to which the outdoor unit needs to blow away the residual heat, and the length of time t for blowing away the residual heat is 外 and the speed of the external fan R 外 Specifically, a second temperature difference threshold Ta2 is set. Ta2 may be 20° C., or may be adjusted according to actual needs.

[0065] When Ta1≤|ΔT1|<Ta2, the fan speed is determined according to formula (1):

[0066] R 外 =|ΔT1|*T m +R 外 'Formula (1)

[0067] Among them, T m is the first speed compensation value, R 外 ' is the basic speed of the outdoor fan. For example, T m is 10rad / s, R 外 ' is 600rad / s, then R 外=|ΔT1|*10+600. Thus, based on the basic speed, the speed increases by 10 rad / s for every increase of |ΔT1| by 1. Optionally, R 外 Less than or equal to the maximum speed R of the external fan 外max . R 外max It can be 1000rad / s.

[0068] Determine the residual heat blowing time according to formula (2):

[0069] t 外 =|ΔT1|*t m Formula (2)

[0070] Among them, t m is the first interval duration. For example, t m is 2s, then t 外 =|ΔT1|*2s. Thus, for every increase of |ΔT1| by 1, t 外 Increase by 2s.

[0071] Until the residual heat blowing time reaches |ΔT1|*t m , determine that the blowing of residual heat is finished, that is, determine that the external fan is turned off and the air guide plate is closed.

[0072] It should be noted that |ΔT1| in the above formula is calculated when the compressor is stopped. After determining that Ta1≤|ΔT1|<Ta2, the external fan always runs at a speed of |ΔT1|*10+600 during the entire process of blowing away the waste heat, so as to achieve rapid blowing of the waste heat.

[0073] When |ΔT1|≥Ta2, the speed R of the external fan can also be calculated according to formula (1): 外 At the same time, R 外 Less than or equal to the maximum speed R of the external fan 外max When Ta1≥Ta2, the exhaust temperature is much different from the outdoor ambient temperature, and the working conditions are relatively bad. In principle, the residual heat blowing time should be longer. However, if the residual heat blowing time is too long, it will give users the illusion that the air conditioner cannot be turned off. Users may complain. Therefore, directly set the residual heat blowing time t 外 is a larger fixed value: the first duration. For example, t 外 For 30 seconds.

[0074] Until t 外 When the first time period is reached, it is determined that the blowing of the residual heat is finished, that is, it is determined that the external fan is turned off and the air guide plate is closed.

[0075] In this way, based on the different degrees of difference between the first parameter and the second parameter, the blowing residual heat duration of different outdoor units and the fan speed of the outdoor units are determined, so that the blowing residual heat duration and the fan speed are reasonably matched, so as to achieve a better blowing residual heat effect for the outdoor unit, thereby avoiding a sudden drop in pressure and improving the stability of system pressure relief.

[0076] Optionally, at S122, the processor determines the residual temperature requirement of the indoor unit according to the operation mode of the air conditioner, including:

[0077] When the operation mode of the air conditioner is the heating mode, the processor detects the third parameter and the fourth parameter of the operation of the air conditioner.

[0078] The processor determines the residual temperature requirement of the indoor unit according to the third parameter and the fourth parameter.

[0079] The processor determines that the residual heat blowing requirement of the indoor unit is that residual heat blowing is required when the operation mode of the air conditioner is the cooling mode.

[0080] When determining the residual heat blowing demand of the indoor unit according to the operating mode of the air conditioner, the previous operating mode of the air conditioner is first determined. If the operating mode is the heating mode, the third parameter and the fourth parameter of the air conditioner operation will be detected. The residual heat blowing demand of the indoor unit is then determined based on the third parameter and the fourth parameter. Optionally, the third parameter is the inner coil temperature, and the fourth parameter is the indoor ambient temperature. This is because the greater the difference between the inner coil temperature and the outdoor ambient temperature, the easier it is for the air conditioning system load to drop suddenly, and the more the indoor unit needs to blow residual heat. Therefore, the residual heat blowing demand of the indoor unit can be determined based on the inner coil temperature and the indoor ambient temperature.

[0081] Specifically, the third temperature difference threshold Tb1 is set according to the inner coil temperature T 内 The absolute value of the first difference ΔT2 between the indoor ambient temperature Tai, that is, |ΔT2|=|T 内 -Tai|, determine the demand for blowing waste heat of the indoor unit. When |ΔT2|<Tb1, it indicates that the temperature of the inner coil is not much different from the outdoor ambient temperature, and the air conditioning system can be stabilized. At this time, it is determined that the indoor unit does not need to blow waste heat. When |ΔT2|≥Tb1, it indicates that the temperature of the inner coil is much different from the outdoor ambient temperature, and the load of the air conditioning system is prone to sudden changes. At this time, it is determined that the indoor unit needs to blow waste heat. Optionally, Tb1 can be 5°C, or it can be adjusted according to actual needs.

[0082] In cooling mode, the main purpose of the indoor unit blowing residual cooling is to ensure a dry environment for the indoor system to avoid problems such as bacteria and mold. Therefore, if the operating mode is cooling mode, it is directly determined that the indoor unit needs to blow residual cooling.

[0083] In this way, based on different air-conditioning operation modes and different conditions, it is possible to accurately determine whether the indoor unit needs to blow residual cooling / residual heat, so that the residual cooling / residual heat blowing plan can be correctly implemented for the indoor unit later.

[0084] Optionally, combined Figure 4 As shown, the embodiment of the present disclosure provides another method for controlling an air conditioner, comprising:

[0085] S101, the processor determines the target object to be blown away the residual heat according to the operating state of the air conditioner; the target object includes the indoor unit and the outdoor unit.

[0086] S112: When the target object is an indoor unit, the processor determines an operation mode of the air conditioner.

[0087] S1122: When the operation mode of the processor air conditioner is the heating mode, detect the third parameter and the fourth parameter of the air conditioner operation.

[0088] S1222: The processor determines the residual temperature requirement of the indoor unit according to the third parameter and the fourth parameter.

[0089] S1322: When the operation mode of the air conditioner is the cooling mode, the processor determines that the residual heat blowing requirement of the indoor unit is that residual heat blowing is required.

[0090] S133: When the residual heat blowing requirement is that residual heat blowing is required, the processor calculates an absolute value of a second difference between the third parameter and the fourth parameter.

[0091] S143, the processor determines the residual heat blowing time of the indoor unit and the fan speed of the indoor unit according to the absolute value of the second difference and the operation mode of the air conditioner.

[0092] S104, the processor controls the target object to operate according to the determined residual heat blowing scheme.

[0093] When it is determined according to the aforementioned logic that the indoor unit needs to blow residual cooling / residual heat, the absolute value of the second difference between the third parameter and the fourth parameter is calculated, that is, |ΔT2|=|T 内 -Tai|. According to the absolute value of the second difference |ΔT2| and the operation mode of the air conditioner, the residual cooling / residual heating time of the indoor unit and the speed R of the indoor unit fan (hereinafter referred to as "indoor fan") are determined. 内 The larger the |ΔT1| is, the greater the degree to which the indoor unit needs to blow the residual heat, and the residual heat blowing time t 内 and the speed of the internal fan R 内 The bigger it is.

[0094] Specifically, when the operation mode of the air conditioner is the heating mode, the fourth temperature difference threshold Tb2 is set. Tb2 may be 10° C., or may be adjusted according to actual needs.

[0095] When Tb1≤|ΔT2|<Tb2, the temperature of the inner coil is not much different from the indoor ambient temperature. 内 Run. Optionally, R 内 To prevent cold wind speed.

[0096] Determine the residual heat blowing time according to formula (3):

[0097] t 内 =|ΔT2|*t n Formula (3)

[0098] Among them, t n is the second interval duration. For example, t n is 2s, then t 内 =|ΔT2|*2s. Thus, for every increase of |ΔT2| by 1, t 内 Add 2s. To avoid user complaints caused by the internal fan not being turned off for a long time, t 内 Less than or equal to the second duration.

[0099] When |ΔT2|≥Tb2, the speed of the internal fan is determined according to formula (4):

[0100] R 内 =|ΔT2|*T n +R 内 'Formula (4)

[0101] Among them, T n is the second speed compensation value, R 内 ' is the basic speed of the internal fan. For example, T n is 10rad / s, R 内 ' is 600rad / s, then R 内 =|ΔT2|*10+600. Thus, based on the basic speed, the speed increases by 10 rad / s for every increase of |ΔT2| by 1. Optionally, R 内 Less than or equal to the maximum speed R of the internal fan 内max . R 内max It can be 1000rad / s.

[0102] Until |ΔT2|<Tb1 and / or t 内 When the second time period is reached, it is determined that the blowing of the residual heat is finished, that is, it is determined that the interior fan is turned off and the air guide plate is closed.

[0103] When the air conditioner is in cooling mode, residual cooling is required to remove the coldness of the heat exchanger / electric heating element, etc. At this time, the system load is not high, so there is no need to adjust the internal fan speed and the residual cooling time according to the temperature difference range of the absolute value of the second difference |ΔT2|. The residual cooling time can be directly determined according to formula (3), and the internal fan speed can be determined according to formula (4).

[0104] Until t 外 When the third time period is reached, it is determined that the residual cooling is finished, that is, the inner fan is turned off and the air guide plate is closed.

[0105] During the process of the indoor unit blowing residual heat / preheating, |ΔT2| is re-judged every set time, for example, every 5 seconds. The new |ΔT2| is substituted into formula (4) to calculate the new R 内 . Determine the internal fan with a new R 内 In this way, the speed of the indoor fan is adjusted in real time according to |ΔT2| to reduce the impact of the indoor unit blowing waste heat / waste cold on the indoor temperature, thereby ensuring the user's comfort.

[0106] In this way, based on the different operating modes of the air conditioner, the different purposes of the indoor unit blowing residual cold / residual heat are considered, and different indoor fan speeds and residual heat blowing times are determined to meet different needs.

[0107] Optionally, the second duration is greater than the first duration, that is, the maximum duration of the indoor unit blowing the residual heat is greater than the maximum duration of the outdoor unit blowing the residual heat. This is because: the indoor fan and the outdoor fan are different, and the air volume generated is different. The air volume of the outdoor fan is greater than the air volume of the indoor fan. When the air volume of the outdoor fan is relatively large, its residual heat blowing duration can be shortened. At the same time, the electric energy required for the operation of the outdoor fan can also be saved.

[0108] Optionally, the second duration is greater than the third duration, that is, the maximum duration of the indoor unit blowing residual heat is greater than the maximum duration of the indoor unit blowing residual cold. This is because the purpose of the indoor unit blowing residual heat is to ensure the smooth pressure relief of the system, so the second duration can be relatively long. The purpose of the indoor unit blowing residual cold is to ensure the dry environment of the indoor system, and it generally takes too long to take away the excess cold. Therefore, the first duration can be relatively short in order to save the electric energy required for the operation of the indoor fan.

[0109] Optionally, Ta1>Tb1. That is, the temperature difference threshold that allows the outdoor unit to enter the waste heat blowing is greater than the temperature difference threshold that allows the indoor unit to enter the waste heat blowing. This is because whether the outdoor unit enters the waste heat blowing is determined based on the exhaust temperature, while whether the indoor unit enters the waste heat blowing is determined based on the internal coil temperature. The exhaust temperature is very high. The internal coil temperature is the temperature of the compressor exhaust after heat exchange in the indoor unit, which is relatively low. Therefore, setting Ta1>Tb1 can more accurately determine whether the indoor / outdoor unit needs to enter the waste heat blowing. Similarly, Ta2>Tb2 can more accurately determine whether the indoor / outdoor unit needs to blow waste heat to a greater extent.

[0110] Optionally, combined Figure 5 As shown, the embodiment of the present disclosure provides another method for controlling an air conditioner, comprising:

[0111] S101, the processor determines the target object to be blown away the residual heat according to the operating state of the air conditioner; the target object includes the indoor unit and the outdoor unit.

[0112] S112: When the target object is an indoor unit, the processor determines an operation mode of the air conditioner.

[0113] S1122: When the operation mode of the air conditioner is the heating mode, the processor detects a third parameter and a fourth parameter of the air conditioner operation.

[0114] S1222: The processor determines the residual temperature requirement of the indoor unit according to the third parameter and the fourth parameter.

[0115] S1322: When the operation mode of the air conditioner is the cooling mode, the processor determines that the residual heat blowing requirement of the indoor unit is that residual heat blowing is required.

[0116] S133: When the residual heat blowing requirement is that residual heat blowing is required, the processor calculates an absolute value of a second difference between the third parameter and the fourth parameter.

[0117] S143, the processor determines the residual heat blowing time of the indoor unit and the fan speed of the indoor unit according to the absolute value of the second difference and the operation mode of the air conditioner.

[0118] S153: The processor determines the position of the air guide plate according to the operating mode of the air conditioner.

[0119] S104, the processor controls the target object to operate according to the determined residual heat blowing scheme.

[0120] When the air conditioner is running in heating mode, the indoor unit blows out residual heat. As the temperature of the inner coil gradually decreases, the outlet air temperature will also gradually decrease. If no measures are taken, the low-temperature outlet air will make the user feel uncomfortable. Therefore, it is necessary to adjust the position of the air guide plate to achieve the purpose of preventing cold wind. Optionally, the position of the air guide plate is determined to be a cold wind prevention position, for example, a horizontal upward position. While controlling the speed of the inner fan and the duration of blowing residual heat, the air guide plate is controlled to rotate to the cold wind prevention position.

[0121] When the air conditioner is in cooling mode, the indoor unit blows residual cooling. Since the air conditioner is in cooling mode before, the air outlet temperature is also low when blowing residual cooling, which will not make the user feel uncomfortable. Therefore, at this time, there is no need to adjust the position of the air guide plate, and the air guide plate can be controlled to remain in the current position.

[0122] In this way, based on the different air-conditioning operation modes, it is determined whether there is a need to prevent cold wind. If so, the air guide plate is determined to be in the cold wind prevention position to ensure the user's comfort. If not, it is determined that the air guide plate is kept in the current position to ensure the air volume, thereby ensuring the effect of blowing residual heat.

[0123] Optionally, if the residual heat blowing requirement is that the residual heat blowing is not required, the corresponding fan is controlled to be directly shut down, and the air guide plate is controlled to be closed.

[0124] Optionally, when blowing the residual cold / residual heat ends, the corresponding fan is controlled to shut down, and the air guide plate is controlled to close.

[0125] Combination Figure 6 As shown, in practical applications:

[0126] S601, air conditioning compressor stops;

[0127] S602, determine the previous operation mode of the air conditioner; if it is the heating mode, execute S603; if it is the cooling mode, execute S609 and S616;

[0128] S603, obtain T 内 and Tai, and according to |ΔT2|=|T 内 -Tai|calculate|ΔT2|;

[0129] S604, determine the temperature difference range of |ΔT2|; if |ΔT2|<5°C, execute S608; if 5°C≤|ΔT2|<10°C, execute S605; if |ΔT2|≥10°C, execute S607;

[0130] S605, controlling the internal fan to run at a cold wind prevention speed, with the air guide plate located at a cold wind prevention position; then executing S606;

[0131] S606, determine whether t is within = |ΔT2|*2s; if yes, execute S608; if no, execute S605;

[0132] S607, control the starting speed R of the internal fan 内 =|ΔT2|*10+600, with a maximum value not exceeding 1000rad / s; and adjust the internal fan speed every 5s according to the real-time |ΔT2| and the above formula; until |ΔT2|<5℃ and / or t 内 When the time reaches 60s, execute S608;

[0133] S608, control the internal fan to stop and the air guide plate to close;

[0134] S609, get T 外 and Tao, and according to |ΔT1|=|T 排 -Tao|calculate|ΔT1|;

[0135] S610, determine the temperature difference range of |ΔT1|; if |ΔT1|<10℃, execute S615; if 10℃≤|ΔT1|<20℃, execute S611; if |ΔT1|≥20℃, execute S613;

[0136] S611, control the speed of the external fan R 外 =|ΔT1|*10+600, the maximum value shall not exceed 1000rad / s; then execute S612;

[0137] S612, determine whether t 内 =|ΔT1|*2s; if yes, execute S615; if no, execute S611;

[0138] S613, control the speed of the external fan R 外 =|ΔT1|*10+600, the maximum value is not more than 1000rad / s; then execute S614;

[0139] S614, determine t 内 Whether it reaches 30s; if yes, execute S615; if no, execute S613;

[0140] S615, control the external fan to stop and the air guide plate to close;

[0141] S616, get T 内 and Tai, and according to |ΔT2|=|T 内 -Tai|calculate|ΔT2|; then execute S617;

[0142] S617, control the starting speed R of the internal fan 内=|ΔT2|*10+600, the maximum value shall not exceed 1000rad / s; adjust the speed of the internal fan according to the real-time |ΔT2| and the above formula every 5s; then execute S618;

[0143] S618, determine whether t 内 =|ΔT2|*2s, or whether t reaches 30s; if yes, execute S619; if no, execute S617;

[0144] S619, controls the internal fan to shut down and the air guide plate to shut down.

[0145] Combination Figure 7 As shown, the embodiment of the present disclosure provides a device for controlling an air conditioner, including: a first determination module 71, a second determination module 72, a third determination module 73 and a control module 74. The first determination module 71 is configured to determine the target object to be blown residual temperature according to the operating state of the air conditioner; the target object includes an indoor unit and an outdoor unit. The second determination module 72 is configured to determine the residual temperature blowing demand of the target object. The third determination module 73 is configured to determine the residual temperature blowing scheme of the target object according to the operating parameters of the air conditioner when the residual temperature blowing demand is that residual temperature needs to be blown. The control module 74 is configured to control the target object to operate according to the determined residual temperature blowing scheme.

[0146] By using the device for controlling the air conditioner provided by the embodiment of the present disclosure, it is determined whether the target object to be blown residual heat is the indoor unit or the outdoor unit based on the operating state of the air conditioner. In the case that the target object has a demand for blowing residual heat, the blowing residual heat scheme of the target object is matched based on the operating parameters of the air conditioner. In this way, not only the demand for blowing residual heat of the indoor unit is determined, but also the demand for blowing residual heat of the outdoor unit is determined. At the same time, combined with the real-time operating parameters of the air conditioner, a blowing residual heat scheme suitable for the target object is matched, so that the blowing residual heat effect for the target object is better, thereby improving the stability of the pressure relief of the air conditioning system.

[0147] Combination Figure 8 As shown, an embodiment of the present disclosure provides a device for controlling an air conditioner, including a processor 80 and a memory 81. Optionally, the device may also include a communication interface 82 and a bus 83. The processor 80, the communication interface 82, and the memory 81 may communicate with each other through the bus 83. The communication interface 82 may be used for information transmission. The processor 80 may call the logic instructions in the memory 81 to execute the method for controlling the air conditioner of the above embodiment.

[0148] In addition, the logic instructions in the above-mentioned memory 81 can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product.

[0149] The memory 81 is a computer-readable storage medium that can be used to store software programs and computer executable programs, such as program instructions / modules corresponding to the method in the embodiment of the present disclosure. The processor 80 executes the function application and data processing by running the program instructions / modules stored in the memory 81, that is, the method for controlling the air conditioner in the above embodiment is implemented.

[0150] The memory 81 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required for at least one function; the data storage area may store data created according to the use of the terminal device, etc. In addition, the memory 81 may include a high-speed random access memory and may also include a non-volatile memory.

[0151] An embodiment of the present disclosure provides an air conditioner, comprising the above-mentioned device for controlling an air conditioner.

[0152] An embodiment of the present disclosure provides a storage medium storing computer executable instructions, wherein the computer executable instructions are configured to execute the above method for controlling an air conditioner.

[0153] The above-mentioned storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0154] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible changes. Unless explicitly required, separate components and functions are optional, and the order of operation may vary. The parts and features of some embodiments may be included in or replace the parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and the claims, unless the context clearly indicates, the singular forms of "a", "an" and "the" are intended to include plural forms as well. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of listings containing one or more associated ones. In addition, when used in the present application, the term "comprise" and its variants "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups thereof. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method or device comprising the elements. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments may refer to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can refer to the description of the method part.

[0155] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods for each specific application to implement the described functions, but such implementations should not be considered to exceed the scope of the embodiments of the present disclosure. The technicians may clearly understand that, for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above may refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here.

[0156] In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units can be only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between each other shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to implement this embodiment. In addition, each functional unit in the embodiment of the present disclosure may be integrated in a processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit.

[0157] The flowchart and block diagram in the accompanying drawings show the possible architecture, function and operation of the system, method and computer program product according to the embodiment of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of the code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. In the description corresponding to the flowchart and the block diagram in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in a different order from the order disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified functions or actions, or may be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A method for controlling an air conditioner, characterized in that: include: According to the operating status of the air conditioner, determine the target object to be blown with residual heat; The target objects include an indoor unit and an outdoor unit; wherein the operating state of the air conditioner includes: an operating mode of the air conditioner and a start / stop state of the compressor; the determining the target object to be blown of residual temperature according to the operating state of the air conditioner includes: when the air conditioner is in a heating mode and the compressor is stopped, determining the target object to be blown of residual temperature is the indoor unit; when the air conditioner is in a cooling mode and the compressor is stopped, determining the target object to be blown of residual temperature is the indoor unit and the outdoor unit; Determine the residual temperature blowing demand of the target object; the determining of the residual temperature blowing demand of the target object comprises: when the target object is an indoor unit, determine the operation mode of the air conditioner; according to the operation mode of the air conditioner, determine the residual temperature blowing demand of the indoor unit; when the target object is an outdoor unit, detect the first parameter and the second parameter of the air conditioner operation; according to the first parameter and the second parameter, determine the residual temperature blowing demand of the outdoor unit; the determining of the residual temperature blowing demand of the indoor unit according to the operation mode of the air conditioner comprises: when the operation mode of the air conditioner is a heating mode, detect the third parameter and the fourth parameter of the air conditioner operation; according to the third parameter and the fourth parameter, determine the residual temperature blowing demand of the indoor unit; when the operation mode of the air conditioner is a cooling mode, determine the residual temperature blowing demand of the indoor unit as the need to blow residual temperature; wherein, the first parameter is the exhaust temperature of the compressor, the second parameter is the outdoor ambient temperature, the third parameter is the internal coil temperature, and the fourth parameter is the indoor ambient temperature; When the residual heat blowing demand is that the residual heat blowing is required, the residual heat blowing scheme of the target object is determined according to the operating parameters of the air conditioner; Control the target object and operate it according to the determined residual temperature blowing plan.

2. The method according to claim 1, characterized in that The target object is the outdoor unit; The operating parameters of the air conditioner include: a first parameter and a second parameter; and determining the residual heat blowing scheme of the target object according to the operating parameters of the air conditioner includes: calculating an absolute value of a first difference between the first parameter and the second parameter; According to the absolute value of the first difference, the residual temperature blowing time of the outdoor unit and the fan speed of the outdoor unit are determined.

3. The method according to claim 1, characterized in that The target object is the indoor unit; The operating parameters of the air conditioner include: a third parameter and a fourth parameter; and determining the residual heat blowing scheme of the target object according to the operating parameters of the air conditioner includes: calculating an absolute value of a second difference between the third parameter and the fourth parameter; According to the absolute value of the second difference and the operation mode of the air conditioner, the residual heat blowing time of the indoor unit and the fan speed of the indoor unit are determined.

4. The method according to claim 3, characterized in that According to the absolute value of the second difference and the operation mode of the air conditioner, the blowing residual temperature time of the indoor unit is determined, including: When the air conditioner is in the heating mode, when Tb1≤|ΔT2|<Tb2, t 内 =|ΔT2|*t n ; When |ΔT2|≥Tb2, until |ΔT2|<Tb1 and / or t 内 When the second duration is reached, it is determined that the residual heat blowing is finished; Wherein, Tb1 is the third temperature difference threshold, |ΔT2| is the absolute value of the second difference, Tb2 is the fourth temperature difference threshold, t 内 is the residual temperature blowing time of the indoor unit, t n The second interval duration.

5. The method according to claim 3, characterized in that: Determining the fan speed of the indoor unit according to the absolute value of the second difference and the operation mode of the air conditioner includes: When the air conditioner is in the heating mode, when Tb1≤|ΔT2|<Tb2, R 内 To prevent the cold wind speed; when |ΔT2|≥Tb2, R 内 =|ΔT2|*T n +R 内 '; Wherein, Tb1 is the third temperature difference threshold, |ΔT2| is the absolute value of the second difference, Tb2 is the fourth temperature difference threshold, T n is the second speed compensation value, R 内 ' is the basic speed of the internal fan.

6. The method according to claim 3, characterized in that According to the absolute value of the second difference and the operation mode of the air conditioner, the blowing residual temperature time of the indoor unit is determined, including: When the air conditioner is in cooling mode, t 内 =|ΔT2|*t n ; Among them, t 内 is the residual temperature blowing time of the indoor unit, |ΔT2| is the absolute value of the second difference, t n The second interval duration.

7. The method according to claim 3, characterized in that Determining the fan speed of the indoor unit according to the absolute value of the second difference and the operation mode of the air conditioner includes: When the air conditioner is in cooling mode, R 内 =|ΔT2|*T n +R 内 '; Among them, R 内 is the fan speed of the indoor unit, |ΔT2| is the absolute value of the second difference, T n is the second speed compensation value, R 内 ' is the basic speed of the internal fan.

8. The method according to claim 1, characterized in that Determining the residual temperature requirement of the outdoor unit according to the first parameter and the second parameter includes: calculating an absolute value of a first difference between the first parameter and the second parameter; When the absolute value of the first difference is less than the first temperature difference threshold, it is determined that the outdoor unit does not need to blow residual heat; When the absolute value of the first difference is greater than or equal to the first temperature difference threshold, it is determined that the outdoor unit needs to blow away residual heat.

9. The method according to claim 1, characterized in that: The step of determining the residual temperature requirement of the indoor unit according to the third parameter and the fourth parameter includes: calculating an absolute value of a second difference between the third parameter and the fourth parameter; When the absolute value of the second difference is less than the third temperature difference threshold, it is determined that the indoor unit does not need to blow residual heat; When the absolute value of the second difference is greater than or equal to the third temperature difference threshold, it is determined that the indoor unit needs to blow away residual heat.

10. The method according to claim 3, characterized in that The step of determining the residual heat blowing scheme of the target object according to the operating parameters of the air conditioner further includes: Determine the position of the air guide plate according to the operating mode of the air conditioner.

11. The method according to claim 10, characterized in that Determine the position of the air guide plate according to the operating mode of the air conditioner, including: When the air conditioner is running in heating mode, make sure the air guide plate is turned to the cold wind protection position; When the air conditioner operates in cooling mode, make sure the air guide plate remains in the current position.

12. A device for controlling an air conditioner, comprising a processor and a memory storing program instructions, characterized in that: The processor is configured to execute the method for controlling an air conditioner according to any one of claims 1 to 11 when running the program instructions.

13. An air conditioner, characterized in that: Comprising the device for controlling an air conditioner as claimed in claim 12.

14. A storage medium storing program instructions, characterized in that: When the program instructions are executed, the method for controlling an air conditioner according to any one of claims 1 to 11 is executed.

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