Air conditioner and control method, device, storage medium and computer program product thereof

Abstract

The application discloses a control method and device of an air conditioner, the air conditioner, a storage medium and a computer program product, and relates to the technical field of air conditioners. The method comprises the following steps: in the case that the air supply mode of the air conditioner is a wall-hugging air supply mode, after the air conditioner starts a current operation mode, the air conditioner is controlled to exchange heat at a maximum heat exchange capacity preset in the current operation mode; in the current operation mode of the air conditioner, the current value of the indoor air inlet temperature of the air conditioner, the outdoor environment temperature of the air conditioner, the rotating speed of the indoor fan of the air conditioner and the first return air time of the air conditioner are combined to determine the optimal operation frequency of the compressor of the air conditioner, so that the compressor is controlled to operate at the optimal operation frequency. According to the scheme, the air conditioner is wall-hugged to air supply, and the compressor is controlled to operate at the optimal operation frequency in combination with the room volume, so that the direct blowing function can be realized, and the energy consumption can be reduced.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of air conditioners, and particularly relates to an air conditioner control method and device, an air conditioner, a storage medium, and a computer program product, in particular to an air conditioner control method and device for large-angle air supply, an air conditioner, a storage medium, and a computer program product. BACKGROUND

[0002] An air conditioner is an equipment capable of cooling or heating a room, but in related solutions, the air conditioner is limited by the size of an air outlet, and a function of preventing blowing people needs to be considered at all times, so that the cooling or heating effect cannot be guaranteed to be optimal, and the comfort experience of a user is affected.

[0003] The above content is only used to assist in understanding the technical solutions of the present application, and does not represent the acknowledgement of the above content as prior art. SUMMARY

[0004] The present application aims to provide an air conditioner control method and device, an air conditioner, a storage medium, and a computer program product, to solve the problem that an air conditioner is limited by the size of an air outlet, and a function of preventing blowing people needs to be considered, so that the cooling or heating effect cannot be guaranteed to be optimal, and the comfort experience of a user is affected, so as to achieve the effect that the air conditioner blows air close to a wall, and the compressor operates at an optimal operating frequency in combination with the volume of a room, which not only can realize the function of preventing direct blowing, but also can reduce energy consumption.

[0005] The application provides a control method of an air conditioner, wherein the air supply mode of the air conditioner comprises a wall-adhering air supply mode; the wall-adhering air supply mode refers to an air supply mode in which air sent out from an air outlet of the air conditioner flows in a direction parallel to a wall surface of a wall on which an indoor unit of the air conditioner is located and flows along the wall surface under the guidance of the wall surface; the control method of the air conditioner comprises the following steps: when the air supply mode of the air conditioner is the wall-adhering air supply mode, after the air conditioner starts a current operation mode of the air conditioner, the air conditioner is controlled to exchange heat at a maximum heat exchange capacity preset in the current operation mode of the air conditioner; when the air conditioner exchanges heat at the maximum heat exchange capacity preset in the current operation mode of the air conditioner, a current value of an indoor inlet air temperature of the air conditioner is acquired, the current value of the indoor inlet air temperature of the air conditioner acquired for the first time is recorded as an initial value of the indoor inlet air temperature of the air conditioner, and the initial value of the indoor inlet air temperature of the air conditioner is acquired to start timing; an outdoor environment temperature of the air conditioner is acquired, and a rotating speed of an indoor fan of the air conditioner is acquired; when the current value of the indoor inlet air temperature of the air conditioner changes compared with the initial value of the indoor inlet air temperature of the air conditioner in the current operation mode of the air conditioner, the timing is stopped to obtain a first return air time of the air conditioner; in the current operation mode of the air conditioner, the current value of the indoor inlet air temperature of the air conditioner, the outdoor environment temperature of the air conditioner, the rotating speed of the indoor fan of the air conditioner, and the first return air time of the air conditioner are combined to determine an optimal operation frequency of a compressor of the air conditioner, so that the compressor is controlled to operate at the optimal operation frequency of the compressor determined.

[0006] In some embodiments, the current operation mode of the air conditioner is a cooling mode of the air conditioner or a heating mode of the air conditioner; wherein the control of the air conditioner to exchange heat at the maximum heat exchange capacity preset in the current operation mode of the air conditioner comprises: the control of the operation frequency of the compressor to be the upper limit frequency of the compressor preset in the current operation mode of the air conditioner, so that the air conditioner outputs cold energy at the maximum capacity in the cooling mode of the air conditioner or outputs heat energy at the maximum capacity in the heating mode of the air conditioner; and / or, when the current value of the indoor inlet air temperature of the air conditioner changes compared with the initial value of the indoor inlet air temperature of the air conditioner in the current operation mode of the air conditioner, the timing is stopped to obtain the first return air time of the air conditioner, which comprises: in the cooling mode of the air conditioner, if the current value of the indoor inlet air temperature of the air conditioner is smaller than the initial value of the indoor inlet air temperature of the air conditioner, the timing is stopped to obtain the first return air time of the air conditioner; in the heating mode of the air conditioner, if the current value of the indoor inlet air temperature of the air conditioner is greater than the initial value of the indoor inlet air temperature of the air conditioner, the timing is stopped to obtain the first return air time of the air conditioner.

[0007] In some embodiments, in the current operating mode of the air conditioner, the optimal operating frequency of the compressor of the air conditioner is determined in combination with the current value of the indoor air inlet temperature of the air conditioner, the outdoor ambient temperature of the air conditioner, the rotational speed of the indoor fan of the air conditioner, and the first return air time of the air conditioner, including: determining the target wind speed of the indoor unit of the air conditioner according to the rotational speed of the indoor fan of the air conditioner; determining the room volume of the air conditioner according to the target wind speed of the indoor unit of the air conditioner and the first return air time of the air conditioner; in the current operating mode of the air conditioner, determining the optimal operating frequency of the compressor of the air conditioner according to the room volume of the air conditioner and the current value of the indoor air inlet temperature of the air conditioner.

[0008] In some embodiments, determining the target wind speed of the indoor unit of the air conditioner according to the rotational speed of the indoor fan of the air conditioner includes: recording the product value of the square of the rotational speed of the indoor fan of the air conditioner and a first calculation coefficient preset in the current operating mode of the air conditioner as the first calculation value in the current operating mode of the air conditioner; recording the product value of the rotational speed of the indoor fan of the air conditioner and a second calculation coefficient preset in the current operating mode of the air conditioner as the second calculation value in the current operating mode of the air conditioner; and determining the sum of the first calculation value in the current operating mode of the air conditioner, the second calculation value in the current operating mode of the air conditioner, and the third calculation coefficient preset in the current operating mode of the air conditioner as the target wind speed of the indoor unit of the air conditioner;

[0009] And / or, determining the room volume of the air conditioner based on the target wind speed of the indoor unit of the air conditioner and the first return air time of the air conditioner, including: recording the product value of the target wind speed of the indoor unit of the air conditioner and the first return air time of the air conditioner as the third calculated value under the current operating mode of the air conditioner; and determining the product value of the third calculated value under the current operating mode of the air conditioner and the fourth calculation coefficient preset under the current operating mode of the air conditioner as the room volume of the air conditioner.

[0010] In some embodiments, in the current operation mode of the air conditioner, the optimal operation frequency of the compressor of the air conditioner is determined according to the room volume of the air conditioner and the current value of the indoor inlet air temperature of the air conditioner, comprising: taking the product value of the room volume of the air conditioner and the fifth calculation coefficient preset in the current operation mode of the air conditioner as the fourth calculation value in the current operation mode of the air conditioner; taking the product value of the current value of the indoor inlet air temperature of the air conditioner and the sixth calculation coefficient preset in the current operation mode of the air conditioner as the fifth calculation value in the current operation mode of the air conditioner; in the case that the current operation mode of the air conditioner is the refrigeration mode of the air conditioner, taking the sum value of the fourth calculation value in the current operation mode of the air conditioner, the fifth calculation value in the current operation mode of the air conditioner and the seventh calculation coefficient preset in the current operation mode of the air conditioner as the room heat load rate of the air conditioner in the current operation mode of the air conditioner; in the case that the current operation mode of the air conditioner is the heating mode of the air conditioner, taking the difference value of the fourth calculation value in the current operation mode of the air conditioner and the fifth calculation value in the current operation mode of the air conditioner, and then taking the sum value of the difference value and the seventh calculation coefficient preset in the current operation mode of the air conditioner as the room heat load rate of the air conditioner in the current operation mode of the air conditioner; and determining the optimal operation frequency of the compressor of the air conditioner according to the room heat load rate of the air conditioner in the current operation mode of the air conditioner and the current value of the indoor inlet air temperature of the air conditioner.

[0011] In some embodiments, wherein, in the case that the current operation mode of the air conditioner is the cooling mode of the air conditioner, the optimal operation frequency of the compressor of the air conditioner is determined according to the room heat load ratio of the air conditioner in the current operation mode of the air conditioner and the current value of the indoor inlet air temperature of the air conditioner, comprising: in the case that the current operation mode of the air conditioner is the cooling mode of the air conditioner, determining whether the room heat load ratio of the air conditioner in the cooling mode of the air conditioner is less than or equal to the set heat load ratio in the cooling mode of the air conditioner, and determining whether the current value of the indoor inlet air temperature of the air conditioner is greater than or equal to the difference between the set temperature of the air conditioner and the set value; if it is determined that the room heat load ratio of the air conditioner in the cooling mode of the air conditioner is less than or equal to the set heat load ratio in the cooling mode of the air conditioner, and it is determined that the current value of the indoor inlet air temperature of the air conditioner is greater than or equal to the difference between the set temperature of the air conditioner and the set value, then the difference between the upper limit frequency of the compressor preset in the cooling mode of the air conditioner and the lower limit frequency of the compressor preset in the cooling mode of the air conditioner is determined, the product value of the difference and the room heat load ratio of the air conditioner in the cooling mode of the air conditioner is determined, and the sum of the product value and the lower limit frequency of the compressor preset in the cooling mode of the air conditioner is determined as the optimal operation frequency of the compressor of the air conditioner; if it is determined that the room heat load ratio of the air conditioner in the cooling mode of the air conditioner is greater than the set heat load ratio in the cooling mode of the air conditioner, and it is determined that the current value of the indoor inlet air temperature of the air conditioner is greater than or equal to the difference between the set temperature of the air conditioner and the set value, then the upper limit frequency of the compressor preset in the cooling mode of the air conditioner is determined as the optimal operation frequency of the compressor of the air conditioner; if it is determined that the current value of the indoor inlet air temperature of the air conditioner is less than the difference between the set temperature of the air conditioner and the set value, then the optimal operation frequency of the compressor of the air conditioner is determined as 0, and the compressor is restarted only when it is determined that the current value of the indoor inlet air temperature of the air conditioner is greater than or equal to the difference between the set temperature of the air conditioner and the set value;

[0012] And / or, in the case that the current operation mode of the air conditioner is the heating mode of the air conditioner, determining the optimal operation frequency of the compressor of the air conditioner according to the room heat load ratio of the air conditioner in the current operation mode of the air conditioner and the current value of the indoor inlet air temperature of the air conditioner, comprising: in the case that the current operation mode of the air conditioner is the heating mode of the air conditioner, determining whether the room heat load ratio of the air conditioner in the heating mode of the air conditioner is less than or equal to the set heat load ratio in the heating mode of the air conditioner, and determining whether the current value of the indoor inlet air temperature of the air conditioner is less than or equal to the sum of the set temperature of the air conditioner and the set value; if it is determined that the room heat load ratio of the air conditioner in the heating mode of the air conditioner is less than or equal to the set heat load ratio in the heating mode of the air conditioner, and it is determined that the current value of the indoor inlet air temperature of the air conditioner is less than or equal to the sum of the set temperature of the air conditioner and the set value, then determining the sum of the upper limit frequency of the compressor preset in the heating mode of the air conditioner and the lower limit frequency of the compressor preset in the heating mode of the air conditioner, determining the product value of the sum and the room heat load ratio of the air conditioner in the heating mode of the air conditioner, and determining the product value and the sum of the lower limit frequency of the compressor preset in the heating mode of the air conditioner as the optimal operation frequency of the compressor of the air conditioner; if it is determined that the room heat load ratio of the air conditioner in the heating mode of the air conditioner is greater than the set heat load ratio in the heating mode of the air conditioner, and it is determined that the current value of the indoor inlet air temperature of the air conditioner is less than or equal to the sum of the set temperature of the air conditioner and the set value, then determining the upper limit frequency of the compressor preset in the heating mode of the air conditioner as the optimal operation frequency of the compressor of the air conditioner; if it is determined that the current value of the indoor inlet air temperature of the air conditioner is greater than the sum of the set temperature of the air conditioner and the set value, then determining the optimal operation frequency of the compressor of the air conditioner as 0, and restarting the compressor only when it is determined that the current value of the indoor inlet air temperature of the air conditioner is less than or equal to the sum of the set temperature of the air conditioner and the set value.

[0013] According to the method, the application provides a control device of an air conditioner. The air supply mode of the air conditioner includes a wall-adhesion air supply mode. In the wall-adhesion air supply mode, air is sent out from an air outlet of the air conditioner, and the flow direction of the air is parallel to a wall surface of a wall on which an indoor unit of the air conditioner is located, and the air flows along the wall surface under the guidance of the wall surface. The control device of the air conditioner includes: a control unit configured to, when the air supply mode of the air conditioner is the wall-adhesion air supply mode, control the air conditioner to exchange heat at a maximum heat exchange capacity preset in a current operation mode of the air conditioner after the air conditioner starts the current operation mode; an acquisition unit configured to, when the air conditioner exchanges heat at the maximum heat exchange capacity preset in the current operation mode of the air conditioner, acquire a current value of an indoor inlet air temperature of the air conditioner, record a first acquired current value of the indoor inlet air temperature of the air conditioner as an initial value of the indoor inlet air temperature of the air conditioner, and start timing when the initial value of the indoor inlet air temperature of the air conditioner is acquired; and acquire an outdoor environment temperature of the air conditioner and a rotating speed of an indoor fan of the air conditioner. The control unit is further configured to, when the current value of the indoor inlet air temperature of the air conditioner changes compared with the initial value of the indoor inlet air temperature of the air conditioner in the current operation mode of the air conditioner, stop timing to obtain a first return air time of the air conditioner. The control unit is further configured to, in the current operation mode of the air conditioner, determine an optimal operating frequency of a compressor of the air conditioner in combination with the current value of the indoor inlet air temperature of the air conditioner, the outdoor environment temperature of the air conditioner, the rotating speed of the indoor fan of the air conditioner, and the first return air time of the air conditioner, to control the compressor to operate at the optimal operating frequency of the compressor.

[0014] In some embodiments, the current operation mode of the air conditioner is a cooling mode of the air conditioner or a heating mode of the air conditioner. The control unit controls the air conditioner to exchange heat at the maximum heat exchange capacity preset in the current operation mode of the air conditioner, including: controlling the operating frequency of the compressor to be an upper limit frequency of the compressor preset in the current operation mode of the air conditioner, so that the air conditioner outputs cold energy at a maximum capacity in the cooling mode of the air conditioner, or outputs heat at a maximum capacity in the heating mode of the air conditioner.

[0015] And / or, the control unit, in the case that the current value of the indoor inlet air temperature of the air conditioner changes compared with the initial value of the indoor inlet air temperature of the air conditioner in the current operation mode of the air conditioner, stops timing to obtain the first return air time of the air conditioner, comprising: in the cooling mode of the air conditioner, if the current value of the indoor inlet air temperature of the air conditioner is less than the initial value of the indoor inlet air temperature of the air conditioner, the timing is stopped to obtain the first return air time of the air conditioner; in the heating mode of the air conditioner, if the current value of the indoor inlet air temperature of the air conditioner is greater than the initial value of the indoor inlet air temperature of the air conditioner, the timing is stopped to obtain the first return air time of the air conditioner.

[0016] In some embodiments, the control unit, in the current operation mode of the air conditioner, determines the optimal operation frequency of the compressor of the air conditioner in combination with the current value of the indoor inlet air temperature of the air conditioner, the outdoor environment temperature of the air conditioner, the rotation speed of the indoor fan of the air conditioner, and the first return air time of the air conditioner, comprising: determining the target air speed of the indoor unit of the air conditioner according to the rotation speed of the indoor fan of the air conditioner; determining the room volume of the air conditioner according to the target air speed of the indoor unit of the air conditioner and the first return air time of the air conditioner; determining the optimal operation frequency of the compressor of the air conditioner according to the room volume of the air conditioner and the current value of the indoor inlet air temperature of the air conditioner in the current operation mode of the air conditioner.

[0017] In some embodiments, the control unit determines the target air speed of the indoor unit of the air conditioner according to the rotation speed of the indoor fan of the air conditioner, comprising: taking the product value of the square of the rotation speed of the indoor fan of the air conditioner and the first calculation coefficient preset in the current operation mode of the air conditioner as the first calculation value in the current operation mode of the air conditioner; taking the product value of the rotation speed of the indoor fan of the air conditioner and the second calculation coefficient preset in the current operation mode of the air conditioner as the second calculation value in the current operation mode of the air conditioner; and determining the sum value of the first calculation value in the current operation mode of the air conditioner, the second calculation value in the current operation mode of the air conditioner, and the third calculation coefficient preset in the current operation mode of the air conditioner as the target air speed of the indoor unit of the air conditioner.

[0018] And / or, the control unit determines the room volume of the air conditioner according to the target air volume of the indoor unit of the air conditioner and the first return air time of the air conditioner, including: taking the product value of the target air volume of the indoor unit of the air conditioner and the first return air time of the air conditioner as a third calculation value in the current operation mode of the air conditioner; and taking the product value of the third calculation value in the current operation mode of the air conditioner and a fourth preset calculation coefficient in the current operation mode of the air conditioner as the room volume of the air conditioner.

[0019] In some embodiments, the control unit determines the optimal operation frequency of the compressor of the air conditioner according to the room volume of the air conditioner and the current value of the indoor inlet air temperature of the air conditioner in the current operation mode of the air conditioner, including: taking the product value of the room volume of the air conditioner and a fifth preset calculation coefficient in the current operation mode of the air conditioner as a fourth calculation value in the current operation mode of the air conditioner; taking the product value of the current value of the indoor inlet air temperature of the air conditioner and a sixth preset calculation coefficient in the current operation mode of the air conditioner as a fifth calculation value in the current operation mode of the air conditioner; in the case that the current operation mode of the air conditioner is the cooling mode of the air conditioner, taking the sum of the fourth calculation value in the current operation mode of the air conditioner, the fifth calculation value in the current operation mode of the air conditioner, and a seventh preset calculation coefficient in the current operation mode of the air conditioner as the room heat load rate of the air conditioner in the current operation mode of the air conditioner; in the case that the current operation mode of the air conditioner is the heating mode of the air conditioner, taking the difference between the fourth calculation value in the current operation mode of the air conditioner and the fifth calculation value in the current operation mode of the air conditioner, and adding the seventh preset calculation coefficient in the current operation mode of the air conditioner to obtain the room heat load rate of the air conditioner in the current operation mode of the air conditioner; and determining the optimal operation frequency of the compressor of the air conditioner according to the room heat load rate of the air conditioner in the current operation mode of the air conditioner and the current value of the indoor inlet air temperature of the air conditioner.

[0020] In some embodiments, wherein, in a case where the current operation mode of the air conditioner is the cooling mode of the air conditioner, the control unit determines the optimal operation frequency of the compressor of the air conditioner according to the room heat load ratio of the air conditioner in the current operation mode of the air conditioner and the current value of the indoor inlet air temperature of the air conditioner, comprising: in a case where the current operation mode of the air conditioner is the cooling mode of the air conditioner, determining whether the room heat load ratio of the air conditioner in the cooling mode of the air conditioner is less than or equal to the set heat load ratio in the cooling mode of the air conditioner, and determining whether the current value of the indoor inlet air temperature of the air conditioner is greater than or equal to the difference between the set temperature of the air conditioner and the set value; if it is determined that the room heat load ratio of the air conditioner in the cooling mode of the air conditioner is less than or equal to the set heat load ratio in the cooling mode of the air conditioner, and it is determined that the current value of the indoor inlet air temperature of the air conditioner is greater than or equal to the difference between the set temperature of the air conditioner and the set value, determining the difference between the upper limit frequency of the compressor preset in the cooling mode of the air conditioner and the lower limit frequency of the compressor preset in the cooling mode of the air conditioner, determining the product value of the difference and the room heat load ratio of the air conditioner in the cooling mode of the air conditioner, and determining the sum value of the product value and the lower limit frequency of the compressor preset in the cooling mode of the air conditioner as the optimal operation frequency of the compressor of the air conditioner; if it is determined that the room heat load ratio of the air conditioner in the cooling mode of the air conditioner is greater than the set heat load ratio in the cooling mode of the air conditioner, and it is determined that the current value of the indoor inlet air temperature of the air conditioner is greater than or equal to the difference between the set temperature of the air conditioner and the set value, determining the upper limit frequency of the compressor preset in the cooling mode of the air conditioner as the optimal operation frequency of the compressor of the air conditioner; if it is determined that the current value of the indoor inlet air temperature of the air conditioner is less than the difference between the set temperature of the air conditioner and the set value, determining the optimal operation frequency of the compressor of the air conditioner as 0, and restarting the compressor only in a case where it is determined that the current value of the indoor inlet air temperature of the air conditioner is greater than or equal to the difference between the set temperature of the air conditioner and the set value;

[0021] And / or, the control unit, in the case that the current operation mode of the air conditioner is the heating mode of the air conditioner, determines the optimal operation frequency of the compressor of the air conditioner according to the room heat load ratio of the air conditioner in the current operation mode of the air conditioner and the current value of the indoor inlet air temperature of the air conditioner, comprising: in the case that the current operation mode of the air conditioner is the heating mode of the air conditioner, determining whether the room heat load ratio of the air conditioner in the heating mode of the air conditioner is less than or equal to the set heat load ratio in the heating mode of the air conditioner, and determining whether the current value of the indoor inlet air temperature of the air conditioner is less than or equal to the sum of the set temperature and the set value of the air conditioner; if it is determined that the room heat load ratio of the air conditioner in the heating mode of the air conditioner is less than or equal to the set heat load ratio in the heating mode of the air conditioner, and it is determined that the current value of the indoor inlet air temperature of the air conditioner is less than or equal to the sum of the set temperature and the set value of the air conditioner, determining the sum of the upper limit frequency of the compressor preset in the heating mode of the air conditioner and the lower limit frequency of the compressor preset in the heating mode of the air conditioner, determining the product value of the sum and the room heat load ratio of the air conditioner in the heating mode of the air conditioner, and determining the product value and the sum of the lower limit frequency of the compressor preset in the heating mode of the air conditioner as the optimal operation frequency of the compressor of the air conditioner; if it is determined that the room heat load ratio of the air conditioner in the heating mode of the air conditioner is greater than the set heat load ratio in the heating mode of the air conditioner, and it is determined that the current value of the indoor inlet air temperature of the air conditioner is less than or equal to the sum of the set temperature and the set value of the air conditioner, determining the upper limit frequency of the compressor preset in the heating mode of the air conditioner as the optimal operation frequency of the compressor of the air conditioner; if it is determined that the current value of the indoor inlet air temperature of the air conditioner is greater than the sum of the set temperature and the set value of the air conditioner, determining the optimal operation frequency of the compressor of the air conditioner as 0, and restarting the compressor until it is determined that the current value of the indoor inlet air temperature of the air conditioner is less than or equal to the sum of the set temperature and the set value of the air conditioner.

[0022] In order to achieve the above object, the present application provides a control device of an air conditioner, comprising: a control unit, configured to: determine the current operation mode of the air conditioner; determine the room heat load ratio of the air conditioner in the current operation mode of the air conditioner; determine the current value of the indoor inlet air temperature of the air conditioner; and determine the optimal operation frequency of the compressor of the air conditioner according to the room heat load ratio of the air conditioner in the current operation mode of the air conditioner and the current value of the indoor inlet air temperature of the air conditioner.

[0023] In order to achieve the above object, the present application provides a control device of an air conditioner, comprising: a control unit, configured to: determine the current operation mode of the air conditioner; determine the room heat load ratio of the air conditioner in the current operation mode of the air conditioner; determine the current value of the indoor inlet air temperature of the air conditioner; and determine the optimal operation frequency of the compressor of the air conditioner according to the room heat load ratio of the air conditioner in the current operation mode of the air conditioner and the current value of the indoor inlet air temperature of the air conditioner.

[0024] In order to achieve the above object, the present application provides a control device of an air conditioner, comprising: a control unit, configured to: determine the current operation mode of the air conditioner; determine the room heat load ratio of the air conditioner in the current operation mode of the air conditioner; determine the current value of the indoor inlet air temperature of the air conditioner; and determine the optimal operation frequency of the compressor of the air conditioner according to the room heat load ratio of the air conditioner in the current operation mode of the air conditioner and the current value of the indoor inlet air temperature of the air conditioner.

[0025] Therefore, the scheme of the present application, by aiming at the air conditioner with the wall-blowing function, in the case of making the air outlet of the air conditioner blow along the wall, according to the difference of the first change time of the indoor inlet air temperature and the rotating speed of the indoor fan, finally determines the room volume; according to the calculated room volume and the indoor and outdoor ring temperature, determines the optimal operating frequency of the compressor, so that the compressor operates at the appropriate frequency; thus, by making the air conditioner blow along the wall and combining the room volume to make the compressor operate at the optimal operating frequency, not only the direct blowing function can be realized, but also the energy consumption can be reduced.

[0026] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the present application.

[0027] The technical scheme of the present application will be further described in detail below by means of the accompanying drawings and examples. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 Flowchart of an embodiment of the control method of the air conditioner of the present application;

[0029] Figure 2 Flowchart of an embodiment of the method of the present application for determining the optimal operating frequency of the compressor in combination with the current value of the indoor inlet air temperature, the outdoor environment temperature, the rotating speed of the indoor fan and the first return air time;

[0030] Figure 3 Flowchart of an embodiment of the method of the present application for determining the target air speed of the indoor unit according to the rotating speed of the indoor fan;

[0031] Figure 4 Flowchart of an embodiment of the method of the present application for determining the room volume according to the target air speed of the indoor unit and the first return air time;

[0032] Figure 5 Flowchart of an embodiment of the method of the present application for determining the optimal operating frequency of the compressor according to the room volume and the current value of the indoor inlet air temperature;

[0033] Figure 6 Flowchart of an embodiment of the method of the present application for determining the optimal operating frequency of the compressor in the cooling mode;

[0034] Figure 7 Flowchart of an embodiment of the method of the present application for determining the optimal operating frequency of the compressor in the heating mode;

[0035] Figure 8 Structural schematic diagram of an embodiment of the control device of the air conditioner of the present application;

[0036] Figure 9 This is a schematic diagram of the wall-mounted air supply circulation of the air conditioner;

[0037] Figure 10 This is a schematic structural diagram of an air conditioner that supplies air to a wall;

[0038] Figure 11 This is a schematic diagram of the cooling control process of the air conditioner;

[0039] Figure 12 This is a schematic diagram of the heating control flow of the air conditioner.

[0040] In conjunction with the accompanying drawings, the reference numerals in the embodiments of the present invention are as follows:

[0041] 1- wall; 2- evaporator; 3- fan blade; 4- air guide plate; 5- air duct; 102- acquisition unit; 104- control unit. DETAILED DESCRIPTION

[0042] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] Considering that air conditioners are limited by the size of their air outlets and need to be able to prevent people from blowing away, optimal cooling or heating performance cannot be guaranteed, affecting the user's comfort experience. Furthermore, in related solutions, air conditioners often deliver air to the center of the room, resulting in chaotic airflow and ineffective whole-house air conditioning.

[0044] Some solutions require the integration of fresh air systems to achieve coordinated temperature control, resulting in complex systems. Others utilize distributed air supply and convergence within the room, but this doesn't guarantee overall room temperature regulation. Still others only provide timely adjustments based on current internal and external ambient temperatures, failing to ensure the compressor operates at the optimal frequency.

[0045] Therefore, the solution of the present invention proposes a control method for an air conditioner, specifically a control method for an air conditioner with large-angle air supply, wherein the indoor unit of the air conditioner is installed in the corner of the room or on a wall near the corner of the room, so that the air outlet of the air conditioner is close to the wall, and by adjusting the angle of the air guide grille, the air sent out from the air outlet of the air conditioner is blown toward the wall to supply air close to the wall, thereby realizing the anti-direct blowing function; the room volume is finally determined according to the difference in the first change time of the indoor air inlet temperature and the speed of the indoor fan; the room heat load is determined according to the room volume and the outer ring temperature, and the operating parameters of the compressor are adjusted to the optimal operating state, so that the air conditioner runs smoothly and reduces the energy consumption of the air conditioner.

[0046] According to an embodiment of the present invention, a method for controlling an air conditioner is provided. Figure 1 The flowchart of an embodiment of the method of the present invention is shown. The air conditioner is installed in a corner of a room where the air conditioner is located, or the air conditioner is installed on a wall on one side of the corner of the room where the air conditioner is located; the air conditioner has an outdoor unit and an indoor unit, the outdoor unit of the air conditioner has a compressor, and the indoor unit of the air conditioner has an indoor fan, an air inlet, and an air outlet. The air supply mode of the air conditioner includes a wall-attached air supply mode, that is, the air delivered from the air outlet of the air conditioner can be delivered close to the wall; the wall-attached air supply mode refers to an air supply mode in which the air delivered from the air outlet of the air conditioner flows in a direction parallel to the wall surface of the wall where the indoor unit of the air conditioner is located and flows along the wall surface under the guidance of the wall surface. Figure 9 This is a schematic diagram of the wall-mounted air supply circulation of the air conditioner. Figure 9 As shown, in the solution of the present invention, the air conditioner is installed in the corner of the room or near a side wall, with the air outlet close to the wall. By adjusting the angle of the air guide grille, the air is blown toward the wall. Since the walls of conventional rooms are relatively flat with few protrusions, and users generally do not stand close to the wall, the air supply from the air conditioner can flow steadily to the end of the room under the guidance of the wall. At the end, if the air conditioner has dual air outlets, the air from the two air outlets will meet and return to the air inlet side of the air conditioner from the middle; if the air conditioner has a single air outlet, the air will flow around the room and then return to the air inlet of the air conditioner. By calculating the time it takes for the first cooling (heating) air to return to the air inlet, the room volume can be determined.

[0047] Figure 10 This is a structural diagram of an air conditioner that supplies air to the wall. Figure 10 As shown, the indoor unit of the wall-mounted air conditioner is installed close to the wall 1; the indoor unit has an indoor heat exchanger (such as the evaporator 2 in the cooling mode), as well as dual air ducts (such as the air duct 5), dual fans (such as the fan blades 3) and dual air guide plates (such as the air guide plate 4). Figure 10As shown, air conditioners that supply air close to the wall generally have a large-angle air guide mechanism, and their air outlet ducts are facing the side, so as to ensure that any installation method can make the air supply close to the wall, thereby realizing the function of the solution of the present invention. In the related solutions, the maximum opening angle of the air guide mechanism of the air conditioner cannot reach 180°, but the solution of the present invention can achieve large-angle air guidance by pointing the air outlet of the air conditioner to the sides instead of the front, and matching it with the air guide structure of the air conditioner in the related solution. Machines that adopt the functions of the solution of the present invention must have the function of large-angle air supply, Figure 10 The outlets of the two air ducts are angled to the sides, not the front. Simply opening the air deflector to its maximum angle allows for wall-to-wall airflow. Because the air flows along the wall until it reaches the end of the room, there's no risk of air blowing directly onto people due to large temperature differences. There's no need to implement frequency reduction, speed reduction, or air angle adjustment to prevent direct airflow, nor is there a need to manually enable or disable the function, greatly simplifying the control logic.

[0048] In the solution of the present invention, the air outlet of the air conditioner adopts a large-angle air guide design, which can achieve wall-mounted air supply. When the anti-direct blowing function is activated, the air conditioner directly enters the maximum angle of air supply, thereby preventing the air from blowing directly towards the user in the middle of the room. In this way, by improving the air supply method, the air conditioner blows out along the wall, preventing the air from being directly sent into the middle of the room. Considering that users generally do not hold themselves close to the wall during use, the anti-direct blowing function can be easily implemented, and there is no need to manually adjust the air supply angle to avoid the user. This solves the problem that the air conditioner's anti-direct blowing function in related solutions must rely on manual user settings or external sensors to activate. Among them, "wall-mounted air supply" means that after the air conditioner leaves the air conditioner, its flow direction is parallel to the wall and is guided by the wall to flow along the wall. The wall-mounted air supply here means horizontal flow along the walls on all four sides of the room.

[0049] In the solution of the present invention, Figure 1 As shown, the control method of the air conditioner includes: steps S110 to S140.

[0050] In step S110, when the air supply mode of the air conditioner is the wall-mounted air supply mode, after the air conditioner starts the current operation mode of the air conditioner, the air conditioner is controlled to exchange heat according to the maximum heat exchange amount preset in the current operation mode of the air conditioner.

[0051] In some implementations, the current operating mode of the air conditioner is a cooling mode of the air conditioner or a heating mode of the air conditioner.

[0052] Among them, in step S110, the air conditioner is controlled to exchange heat according to the maximum heat exchange amount preset in the current operating mode of the air conditioner, including: controlling the operating frequency of the compressor to be the upper limit frequency of the compressor preset in the current operating mode of the air conditioner, so that the air conditioner outputs cooling according to the maximum capacity in the cooling mode of the air conditioner, or outputs heat according to the maximum capacity in the heating mode of the air conditioner.

[0053] Specifically, Figure 11 Figure 1 is a schematic diagram of the cooling control flow of the air conditioner. Figure 11 As shown, the air conditioner's cooling control process includes: Step 11, starting the air conditioner in cooling mode, obtaining the set temperature T1, indoor inlet air temperature T2, outdoor ambient temperature T3, inside fan speed (i.e., internal fan speed) R1, nominal cooling capacity Q1, compressor operating frequency A1, and compressor upper frequency limit A2. During the air conditioner's first cooling operation, it outputs cooling at maximum capacity, records the current indoor inlet air temperature T4, and starts timing t1 at 0 seconds. Step 12, setting A1 = A2 and T4 = T2.

[0054] Figure 12 Figure 1 is a schematic diagram of the heating control flow of the air conditioner. Figure 12 As shown, the air conditioner heating control process includes: Step 21, starting the air conditioner in heating mode, obtaining the set temperature T1, indoor air inlet temperature T2, outdoor ambient temperature T3, inside fan speed (i.e., inside fan speed) R1, nominal heating capacity Q2, compressor operating frequency A1, and compressor upper limit frequency A2. During the first heating operation, the air conditioner outputs heat at maximum capacity, records the current indoor air inlet temperature T4, and starts timing t1 at 0 seconds. Step 22, setting A1 = A2 and T4 = T2.

[0055] In the solution of the present invention, when the air supply mode of the air conditioner is the wall-mounted air supply mode, after the air conditioner starts the current operating mode of the air conditioner, the air conditioner is controlled to exchange heat according to the maximum heat exchange amount preset in the current operating mode of the air conditioner, which is conducive to making the indoor ambient temperature reach the set temperature faster to improve the user's comfort experience.

[0056] At step S120, in the case that the air conditioner exchanges heat at the maximum heat exchange amount preset in the current operation mode of the air conditioner, the current value of the indoor inlet air temperature of the air conditioner is obtained, the first obtained current value of the indoor inlet air temperature of the air conditioner is recorded as the initial value of the indoor inlet air temperature of the air conditioner (such as the current indoor inlet air temperature T4), and the timing is started in the case that the initial value of the indoor inlet air temperature of the air conditioner is obtained (specifically, the timing is started from 0 s in the case that the initial value of the indoor inlet air temperature of the air conditioner is obtained); and the outdoor environment temperature of the air conditioner (such as the outdoor environment temperature T3) is obtained, and the rotating speed of the indoor fan of the air conditioner (such as the indoor fan rotating speed R1) is obtained. Specifically, first, in the case that the air conditioner starts to exchange heat at the maximum heat exchange amount preset in the current operation mode of the air conditioner, the current value of the indoor inlet air temperature of the air conditioner is obtained, the first obtained current value of the indoor inlet air temperature of the air conditioner is recorded as the initial value of the indoor inlet air temperature of the air conditioner (such as the current indoor inlet air temperature T4), and the timing is started in the case that the initial value of the indoor inlet air temperature of the air conditioner is obtained (specifically, the timing is started from 0 s in the case that the initial value of the indoor inlet air temperature of the air conditioner is obtained); then, in the process that the air conditioner exchanges heat at the maximum heat exchange amount preset in the current operation mode of the air conditioner, the outdoor environment temperature of the air conditioner (such as the outdoor environment temperature T3) is obtained, the rotating speed of the indoor fan of the air conditioner (such as the indoor fan rotating speed R1) is obtained, the set temperature of the air conditioner (such as the set temperature T1) is obtained, the nominal heat exchange capacity of the air conditioner (such as the nominal refrigerating capacity Q1 and the nominal heating capacity Q2) is obtained, and the current operation frequency of the compressor of the air conditioner (such as the operation frequency A1 of the compressor) is obtained.

[0057] At step S130, in the case that the current value of the indoor inlet air temperature of the air conditioner changes compared with the initial value of the indoor inlet air temperature of the air conditioner in the current operation mode of the air conditioner, the timing is stopped, and the first return air time of the air conditioner (such as the timing time t1) is obtained. That is, the time for the air sent out from the air outlet of the air conditioner to return to the air inlet of the air conditioner for the first time is timed, and the first return air time of the air conditioner (such as the timing time t1) is obtained.

[0058] In step S130, in the case that the current value of the indoor inlet air temperature of the air conditioner changes compared with the initial value of the indoor inlet air temperature of the air conditioner in the current operation mode of the air conditioner, the timing is stopped, and the first return air time of the air conditioner is obtained, including any one of the following timing cases:

[0059] The first timing case is: in the cooling mode of the air conditioner, if the current value of the indoor inlet air temperature of the air conditioner is less than the initial value of the indoor inlet air temperature of the air conditioner, the timing is stopped, and the first return air time of the air conditioner is obtained. Specifically, as shown in Figure 11 the cooling control flow of the air conditioner further comprises: step 13, continuously detecting T2, and when T2

[0060] The second timing case is: in the heating mode of the air conditioner, if the current value of the indoor inlet air temperature of the air conditioner is greater than the initial value of the indoor inlet air temperature of the air conditioner, the timing is stopped, and the first return air time of the air conditioner is obtained. Specifically, as shown in Figure 12 the heating control flow of the air conditioner further comprises: step 23, continuously detecting T2, and when T2

[0061] In the scheme of the application, in the current operation mode of the air conditioner, if the current value of the indoor inlet air temperature of the air conditioner changes compared with the initial value of the indoor inlet air temperature of the air conditioner, the timing is stopped, and the first return air time of the air conditioner is obtained, so as to finally determine the room volume according to the difference between the first change time of the indoor inlet air temperature and the rotating speed of the indoor fan, and determine the optimal operation frequency of the compressor according to the calculated room volume and the indoor and outdoor ring temperatures, so that, in the case of realizing the anti-direct blowing function, the compressor frequency fluctuation or operation at an inappropriate frequency is avoided, and the energy consumption is further reduced.

[0062] At step S140, in the current operation mode of the air conditioner, the optimal operation frequency of the compressor of the air conditioner is determined in combination with the current value of the indoor inlet air temperature of the air conditioner, the outdoor environment temperature of the air conditioner, the rotating speed of the indoor fan of the air conditioner, and the first return air time of the air conditioner, so as to control the compressor to operate at the determined optimal operation frequency of the compressor.

[0063] The control scheme of the air conditioner with large-angle air supply provided by the scheme of the application is that the indoor unit of the air conditioner is installed at the corner of a room or on the side wall surface close to the corner of the room, the air outlet of the air conditioner is close to the wall surface, and the air blown out of the air outlet of the air conditioner is blown to the wall surface to realize wall-surface air supply by adjusting the angle of the air guide grille; the room volume is finally determined according to the difference of the first change time of the indoor inlet air temperature and the rotating speed of the indoor fan; and the optimal operation frequency of the compressor is determined according to the calculated room volume and the indoor and outdoor ring temperatures, so that, in the case of realizing the direct-blowing prevention function, the compressor frequency fluctuation or operation at an unsuitable frequency is avoided, and the energy consumption is reduced.

[0064] In some embodiments, the specific process of determining the optimal operation frequency of the compressor of the air conditioner in combination with the current value of the indoor inlet air temperature of the air conditioner, the outdoor environment temperature of the air conditioner, the rotating speed of the indoor fan of the air conditioner, and the first return air time of the air conditioner in the current operation mode of the air conditioner at step S140 is described below.

[0065] The specific process of determining the optimal operation frequency of the compressor of the air conditioner in combination with the current value of the indoor inlet air temperature of the air conditioner, the outdoor environment temperature of the air conditioner, the rotating speed of the indoor fan of the air conditioner, and the first return air time of the air conditioner at step S140 is described below. Figure 2 The specific process of determining the optimal operation frequency of the compressor of the air conditioner in combination with the current value of the indoor inlet air temperature of the air conditioner, the outdoor environment temperature of the air conditioner, the rotating speed of the indoor fan of the air conditioner, and the first return air time of the air conditioner at step S140 is described below.

[0066] At step S210, the target wind speed of the indoor unit of the air conditioner is determined according to the rotating speed of the indoor fan of the air conditioner in the current operation mode of the air conditioner.

[0067] In some embodiments, the specific process of determining the target wind speed of the indoor unit of the air conditioner according to the rotating speed of the indoor fan of the air conditioner at step S210 is described below.

[0068] The specific process of determining the target wind speed of the indoor unit of the air conditioner according to the rotating speed of the indoor fan of the air conditioner at step S210 is described below. Figure 3The flowchart of an embodiment of determining the target wind speed of the indoor unit according to the rotation speed of the indoor fan in the method of the present invention further illustrates the specific process of determining the target wind speed of the indoor unit according to the rotation speed of the indoor fan in step S210, including: steps S310 to S330.

[0069] In step S310, the product of the square of the rotation speed of the indoor fan of the air conditioner and a first calculation coefficient preset in the current operation mode of the air conditioner is recorded as the first calculation value in the current operation mode of the air conditioner.

[0070] Step S320: multiplying the rotation speed of the indoor fan of the air conditioner by a second calculation coefficient preset in the current operation mode of the air conditioner is recorded as a second calculation value in the current operation mode of the air conditioner, wherein the second calculation coefficient is a constant C2.

[0071] Step S330 determines the target wind speed of the indoor unit of the air conditioner as the sum of the first calculated value in the current operating mode of the air conditioner, the second calculated value in the current operating mode of the air conditioner, and a third calculated coefficient preset in the current operating mode of the air conditioner. The third calculated coefficient is a constant such as C3.

[0072] Specifically, if Figure 11 As shown, the cooling control process of the air conditioner also includes: step 14, calculating the supply air speed A3 = C1×R1^2+C2×R1+C3, where C1, C2, and C3 are constants and can be determined by the corresponding curve of the fan air volume and speed measured experimentally.

[0073] like Figure 12 As shown, the heating control process of the air conditioner also includes: Step 24, calculating the supply air speed A3 = C1×R1^2+C2×R1+C3, where C1, C2, and C3 are constants and can be determined by the corresponding curve of the fan air volume and speed measured experimentally.

[0074] In the solution of the present invention, the target wind speed of the indoor unit of the air conditioner is determined according to the rotational speed of the indoor fan of the air conditioner, and then the room volume of the air conditioner can be determined according to the target wind speed of the indoor unit of the air conditioner and the first return air time of the air conditioner, so as to adjust the operating state of the air conditioner accordingly, make the air conditioner run smoothly, reduce the energy consumption of the air conditioner, and solve the problem in the related solution that the air conditioner cannot promote the stable circulation of indoor airflow to achieve temperature regulation of the whole house.

[0075] Step S220, determining the room volume of the air conditioner according to the target air volume of the indoor unit of the air conditioner and the first return air time of the air conditioner in the current operation mode of the air conditioner, specifically, determining the room volume of the room where the air conditioner is located.

[0076] In some embodiments, the specific process of determining the room volume of the air conditioner according to the target air volume of the indoor unit of the air conditioner and the first return air time of the air conditioner in step S220, see the following exemplary description.

[0077] The following will be described in detail with reference to the accompanying drawings. Figure 4 An embodiment flowchart for determining the room volume according to the target air volume of the indoor unit and the first return air time in the method of the air conditioner shown in the drawings, further illustrating the specific process of determining the room volume according to the target air volume of the indoor unit and the first return air time in step S220, including steps S410 to S420.

[0078] Step S410, multiplying the target air volume of the indoor unit of the air conditioner and the first return air time of the air conditioner to obtain a third calculation value in the current operation mode of the air conditioner.

[0079] Step S420, multiplying the third calculation value in the current operation mode of the air conditioner and the fourth calculation coefficient preset in the current operation mode of the air conditioner to determine the room volume of the air conditioner. Wherein, the fourth calculation coefficient is a constant C4.

[0080] Specifically, as shown in the cooling control process of the air conditioner, Figure 11 The cooling control process of the air conditioner further includes: in step 14, calculating the room volume A4=C4×(t1×A3)^2, wherein C4 is a constant, which can be determined in advance according to the test of the air conditioner.

[0081] As shown in the heating control process of the air conditioner, Figure 12 The heating control process of the air conditioner further includes: in step 24, calculating the room volume A4=C4×(t1×A3)^2, wherein C4 is a constant, which can be determined in advance according to the test of the air conditioner.

[0082] In order to realize the detection cycle, the air conditioner in the scheme of the present application does not flow along the ceiling or the floor, but flows along the wall to realize the guiding function, thereby walking through all the corners in the room, which is completely different from the "horizontal air supply close to the ceiling or along the wall to the ground" in the related scheme, and the scheme of the present application does not involve the adjustment of the sweep angle during the sweeping, but only involves the calculation of the room heat load and the optimal compressor frequency each time the air conditioner is started, so as to realize the energy saving and the whole house refrigeration and heating. In the scheme of the present application, by making the air supply of the air conditioner flow along the wall, the room air can be effectively pushed to flow in a predetermined manner, and finally the room volume is determined according to the difference of the first change time of the indoor inlet air temperature and the rotating speed of the indoor fan. By improving the air supply mode, the air supply can effectively flow along the wall, thereby driving the air flow in the room to form a stable circulating flow field, and the volume of the room can be calculated by calculating the time length and the air speed of the circulating air cooled for the first time returning to the air conditioner, and the running state of the air conditioner is adjusted accordingly, thereby solving the problem that the air conditioner in the related scheme cannot drive the indoor air flow to stably circulate to realize the whole house temperature regulation.

[0083] In step S230, the optimal running frequency of the compressor of the air conditioner is determined according to the room volume of the air conditioner and the current value of the indoor inlet air temperature of the air conditioner in the current running mode of the air conditioner.

[0084] In the scheme of the present application, referring to the example shown in Figure 11 and Figure 12 , the air conditioner can determine the optimal running frequency of the compressor according to the calculated room volume and the indoor and outdoor ring temperature, thereby avoiding the fluctuation of the compressor frequency or running at an inappropriate frequency, and further reducing the energy consumption.

[0085] In some embodiments, the specific process of determining the optimal running frequency of the compressor of the air conditioner according to the room volume of the air conditioner and the current value of the indoor inlet air temperature of the air conditioner in the current running mode of the air conditioner in step S230, referring to the following exemplary description.

[0086] The specific process of determining the optimal running frequency of the compressor according to the room volume and the current value of the indoor inlet air temperature in step S230 will be further described below in combination with the flowchart of one embodiment of the method of the present application for determining the optimal running frequency of the compressor according to the room volume and the current value of the indoor inlet air temperature, as shown in Figure 5 , which comprises steps S510 to S550.

[0087] Step S510, a product value of the room volume of the air conditioner and a fifth calculation coefficient preset in the current operation mode of the air conditioner is recorded as a fourth calculation value in the current operation mode of the air conditioner. The fifth calculation coefficient is a constant C5.

[0088] Step S520, a product value of the current value of the indoor inlet air temperature of the air conditioner and a sixth calculation coefficient preset in the current operation mode of the air conditioner is recorded as a fifth calculation value in the current operation mode of the air conditioner. The sixth calculation coefficient is a constant C6.

[0089] Step S530, in the case that the current operation mode of the air conditioner is the cooling mode of the air conditioner, a sum value of the fourth calculation value in the current operation mode of the air conditioner, the fifth calculation value in the current operation mode of the air conditioner and a seventh calculation coefficient preset in the current operation mode of the air conditioner is determined as the room heat load rate of the air conditioner in the current operation mode of the air conditioner.

[0090] Step S540, in the case that the current operation mode of the air conditioner is the heating mode of the air conditioner, a difference value of the fourth calculation value in the current operation mode of the air conditioner and the fifth calculation value in the current operation mode of the air conditioner is determined as the room heat load rate of the air conditioner in the current operation mode of the air conditioner.

[0091] Step S550, according to the room heat load rate of the air conditioner in the current operation mode of the air conditioner and the current value of the indoor inlet air temperature of the air conditioner, the optimal operation frequency of the compressor of the air conditioner is determined.

[0092] Specifically, as shown in Figure 11 the cooling control flow of the air conditioner further comprises: in step 14, calculating the room heat load rate n1=(C5×A4+C6×T3+C7) / Q1, wherein C5, C6 and C7 are constants, which can be determined in advance according to the test of the air conditioner.

[0093] As shown in Figure 12 the heating control flow of the air conditioner further comprises: in step 24, calculating the room heat load rate n1=(C5×A4-C6×T3+C7) / Q2, wherein C5, C6 and C7 are constants, which can be determined in advance according to the test of the air conditioner.

[0094] In the scheme of the present application, the room heat load is determined according to the room volume and the outdoor ring temperature, and the operation parameters of the compressor are adjusted to the optimal operation state. Through the obtained room volume and the outdoor ring temperature, the room heat load can be calculated, so as to adjust the operation parameters to the optimal operation state, without relying on the indoor ring temperature for fluctuation adjustment, thereby making the air conditioner run smoothly, reducing the energy consumption of the air conditioner, and solving the problem that the air conditioner can only be adjusted according to the indoor and outdoor ring temperature fluctuations in the related scheme.

[0095] In some embodiments, in the case where the current operation mode of the air conditioner is the cooling mode of the air conditioner, the specific process of determining the optimal operation frequency of the compressor of the air conditioner according to the room heat load rate of the air conditioner in the current operation mode of the air conditioner and the current value of the indoor inlet air temperature of the air conditioner in step S550 is described below.

[0096] The specific process of determining the optimal operation frequency of the compressor in the cooling mode in step S550 is further described below with reference to the flowchart of an embodiment of the method of the present application for determining the optimal operation frequency of the compressor in the cooling mode. Figure 6 The specific process of determining the optimal operation frequency of the compressor in the cooling mode in step S550 is further described below with reference to the flowchart of an embodiment of the method of the present application for determining the optimal operation frequency of the compressor in the cooling mode.

[0097] In step S610, in the case where the current operation mode of the air conditioner is the cooling mode of the air conditioner, it is determined whether the room heat load rate of the air conditioner in the cooling mode of the air conditioner is less than or equal to the set heat load rate in the cooling mode of the air conditioner, and whether the current value of the indoor inlet air temperature of the air conditioner is greater than or equal to the difference between the set temperature of the air conditioner and the set value.

[0098] In step S620, if it is determined that the room heat load rate of the air conditioner in the cooling mode of the air conditioner is less than or equal to the set heat load rate in the cooling mode of the air conditioner, and it is determined that the current value of the indoor inlet air temperature of the air conditioner is greater than or equal to the difference between the set temperature of the air conditioner and the set value, the difference between the upper limit frequency of the compressor preset in the cooling mode of the air conditioner and the lower limit frequency of the compressor preset in the cooling mode of the air conditioner is determined, the product value of the difference and the room heat load rate of the air conditioner in the cooling mode of the air conditioner is determined, and the sum of the product value and the lower limit frequency of the compressor preset in the cooling mode of the air conditioner is determined as the optimal operation frequency of the compressor of the air conditioner, and then returned to determine the optimal operation frequency of the compressor of the air conditioner according to the room heat load rate of the air conditioner in the cooling mode of the air conditioner and the current value of the indoor inlet air temperature of the air conditioner again.

[0099] Step S630, if it is determined that the room thermal load ratio of the air conditioner in the cooling mode of the air conditioner is greater than the set thermal load ratio in the cooling mode of the air conditioner, and it is determined that the current value of the indoor inlet air temperature of the air conditioner is greater than or equal to the difference between the set temperature and the set value of the air conditioner, the upper limit frequency of the compressor preset in the cooling mode of the air conditioner is determined as the optimal operating frequency of the compressor of the air conditioner, and then returned to determine the optimal operating frequency of the compressor of the air conditioner according to the room thermal load ratio of the air conditioner in the cooling mode of the air conditioner and the current value of the indoor inlet air temperature of the air conditioner again.

[0100] Step S640, if it is determined that the current value of the indoor inlet air temperature of the air conditioner is less than the difference between the set temperature and the set value of the air conditioner, the optimal operating frequency of the compressor of the air conditioner is determined as 0, and the compressor is restarted only when it is determined that the current value of the indoor inlet air temperature of the air conditioner is greater than or equal to the difference between the set temperature and the set value of the air conditioner, and then returned to determine the optimal operating frequency of the compressor of the air conditioner according to the room thermal load ratio of the air conditioner in the cooling mode of the air conditioner and the current value of the indoor inlet air temperature of the air conditioner again.

[0101] Specifically, as shown in Figure 11 the cooling control process of the air conditioner further comprises:

[0102] Step 15, the upper limit frequency A2 of the compressor and the lower limit frequency A5 of the compressor are obtained.

[0103] Step 16, if n1≤1 and T2≥T1-1, the operating frequency A1 of the compressor is set as (A2-A5)×n1+A5; if n1>1 and T2≥T1-1, the operating frequency A1 of the compressor is set as A2; otherwise, the original state is maintained.

[0104] Step 17, if T2<T1-1, the operating frequency A1 of the compressor is set as 0, otherwise the original state is maintained.

[0105] Step 18, the steps 14-17 are cycled until the air conditioner is turned off or adjusted to other modes.

[0106] Referring to Figure 11In the example shown, in the case of the air conditioner in refrigeration operation, the room heat load rate n1 can be calculated by substituting the timing time t1, the outdoor environment temperature T3, the indoor fan rotating speed R1 and the nominal refrigeration capacity Q1 into the calculation formula in step 14, wherein C1, C2, C3, C4, C5, C6 and C7 are preset parameters that can be measured through experiments; and the optimal operating frequency of the compressor can be obtained according to the current room heat load rate n1 and the current upper and lower limit frequencies A2 and A5 of the compressor. When the outdoor environment temperature T3 is too low, the room heat load rate n1 is extremely low, and the compressor operates at the lower limit frequency A5 of the compressor to avoid the frequency of the compressor being lower than the lower limit frequency. If the refrigeration capacity is still higher than the heat load at this time, the indoor inlet air temperature T2 will decrease over time, and finally the indoor inlet air temperature T2 is lower than the set temperature T1, that is, T2 < T1-1, at which time the start-stop control needs to be performed, that is, A1 = 0, until T2 >= T1-1, and the compressor is restarted to perform the control strategy when the capacity of the compressor operating at the lower limit frequency is also high. In the related scheme, the energy efficiency of the compressor is low at the ultra-low frequency, and the start-stop control exists, and the dividing line of the start-stop control is generally the lower limit frequency, which can be measured through experiments.

[0107] In the scheme of the present application, the air outlet of the air conditioner can blow air towards the wall surface, so that the air supply flows along the wall surface, and when the air supply flows to the user, it has undergone a long flow process and the temperature has reached an appropriate level, so that the discomfort caused by direct blowing of air to the user is avoided, and the comfort experience of the user is improved. In the case where the current operating mode of the air conditioner is the refrigeration mode of the air conditioner, the optimal operating frequency of the compressor of the air conditioner is determined according to the room heat load rate of the air conditioner in the current operating mode of the air conditioner and the current value of the indoor inlet air temperature of the air conditioner, so that the air conditioner operates stably and the energy consumption of the air conditioner is reduced.

[0108] In some embodiments, in the case where the current operating mode of the air conditioner is the heating mode of the air conditioner, the specific process of determining the optimal operating frequency of the compressor of the air conditioner in step S550 according to the room heat load rate of the air conditioner in the current operating mode of the air conditioner and the current value of the indoor inlet air temperature of the air conditioner is described below.

[0109] The specific process of determining the optimal operating frequency of the compressor in step S550 in the heating mode will be further described below with reference to the flowchart of an embodiment of the method of the present application for determining the optimal operating frequency of the compressor in the heating mode. Figure 7 The specific process of determining the optimal operating frequency of the compressor in step S550 in the heating mode will be further described below with reference to the flowchart of an embodiment of the method of the present application for determining the optimal operating frequency of the compressor in the heating mode.

[0110] Step S710, in the case that the current operation mode of the air conditioner is the heating mode of the air conditioner, it is determined whether the room heat load rate of the air conditioner in the heating mode of the air conditioner is less than or equal to the set heat load rate in the heating mode of the air conditioner, and it is determined whether the current value of the indoor inlet air temperature of the air conditioner is less than or equal to the sum of the set temperature of the air conditioner and the set value.

[0111] Step S720, in the case that it is determined that the room heat load rate of the air conditioner in the heating mode of the air conditioner is less than or equal to the set heat load rate in the heating mode of the air conditioner, and it is determined that the current value of the indoor inlet air temperature of the air conditioner is less than or equal to the sum of the set temperature of the air conditioner and the set value, it is determined that the sum of the upper limit frequency of the compressor preset in the heating mode of the air conditioner and the lower limit frequency of the compressor preset in the heating mode of the air conditioner, and the product of the sum and the room heat load rate of the air conditioner in the heating mode of the air conditioner is determined as the optimal operation frequency of the compressor of the air conditioner, and then it is returned to determine the optimal operation frequency of the compressor of the air conditioner according to the room heat load rate of the air conditioner in the heating mode of the air conditioner and the current value of the indoor inlet air temperature of the air conditioner again.

[0112] Step S730, in the case that it is determined that the room heat load rate of the air conditioner in the heating mode of the air conditioner is greater than the set heat load rate in the heating mode of the air conditioner, and it is determined that the current value of the indoor inlet air temperature of the air conditioner is less than or equal to the sum of the set temperature of the air conditioner and the set value, the upper limit frequency of the compressor preset in the heating mode of the air conditioner is determined as the optimal operation frequency of the compressor of the air conditioner, and then it is returned to determine the optimal operation frequency of the compressor of the air conditioner according to the room heat load rate of the air conditioner in the heating mode of the air conditioner and the current value of the indoor inlet air temperature of the air conditioner again.

[0113] Step S740, in the case that it is determined that the current value of the indoor inlet air temperature of the air conditioner is greater than the sum of the set temperature of the air conditioner and the set value, the optimal operation frequency of the compressor of the air conditioner is determined as 0, and the compressor is restarted until it is determined that the current value of the indoor inlet air temperature of the air conditioner is less than or equal to the sum of the set temperature of the air conditioner and the set value, and then it is returned to determine the optimal operation frequency of the compressor of the air conditioner according to the room heat load rate of the air conditioner in the heating mode of the air conditioner and the current value of the indoor inlet air temperature of the air conditioner again.

[0114] Specifically, as Figure 12As shown in the heating control process of the air conditioner, the heating control process of the air conditioner further comprises the following steps.

[0115] Step 25, obtaining the upper limit frequency A2 of the compressor and the lower limit frequency A5 of the compressor.

[0116] Step 26, if n1≤1 and T2≤T1+1, setting the running frequency A1 of the compressor as (A2-A5)×n1+A5; if n1>1 and T2≤T1+1, setting the running frequency A1 of the compressor as A2; otherwise, maintaining the original state.

[0117] Step 27, if T2>T1+1, setting the running frequency A1 of the compressor as 0, otherwise, maintaining the original state.

[0118] Step 28, repeating steps 24-27 until the air conditioner is turned off or adjusted to other modes.

[0119] Referring to Figure 11 In the example shown, in the case of heating operation of the air conditioner, the room heat load rate n1 can be calculated by substituting the timing time t1, the outdoor environment temperature T3, the indoor fan speed R1 and the nominal heating capacity Q2 into the calculation formula in step 24, wherein C1, C2, C3, C4, C5, C6 and C7 are preset parameters that can be measured through experiments; the optimal running frequency of the compressor can be obtained according to the current room heat load rate n1 and the current upper limit frequency A2 and lower limit frequency A5 of the compressor. When the outdoor environment temperature T3 is too high, the room heat load rate n1 is extremely low, and the compressor runs at the lower limit frequency A5 of the compressor to avoid that the frequency of the compressor is lower than the lower limit frequency. If the heating capacity is still higher than the heat load at this time, with the passage of time, the indoor inlet air temperature T2 will become high, and finally the indoor inlet air temperature T2 is higher than the set temperature T1, that is, T2>T1+1, at this time, start-stop control is required, that is, A1=0, until T2≤T1-1, the compressor is restarted to execute the control strategy when the capacity of the compressor running at the lower limit frequency is also high. In the related scheme, the energy efficiency of the compressor is low at the ultra-low frequency, and the start-stop control exists, and the dividing line of the start-stop control is generally the lower limit frequency, which can be measured through experiments.

[0120] In the scheme of the present application, the air outlet of the air conditioner can blow air towards the wall surface, so that the air supply flows along the wall surface, and when the air supply flows to the user, it has undergone a long flow process and the temperature has reached an appropriate level, so that the discomfort caused by direct blowing of the air to the user is avoided, and the comfort experience of the user is improved. In the case that the current running mode of the air conditioner is the heating mode of the air conditioner, the optimal running frequency of the compressor of the air conditioner is determined according to the room heat load rate of the air conditioner in the current running mode of the air conditioner and the current value of the indoor inlet air temperature of the air conditioner, so that the air conditioner runs stably and the energy consumption of the air conditioner is reduced.

[0121] In the solution of the present invention, the compressor frequency in the air conditioner must be adjustable, and the compressor control method is to determine the optimal frequency according to the room heat load; the output capacity between adjacent compressor frequencies can be further refined by setting an adjustable electronic expansion valve. For example: when the system is running, the preset initial electronic expansion valve opening will be determined according to the outdoor ambient temperature. When the indoor ambient temperature of the refrigeration room is higher than the set temperature, the electronic expansion valve opening will be increased to reduce the throttling effect and reduce the cooling output; when the indoor ambient temperature of the refrigeration room is lower than the set temperature, the electronic expansion valve opening will be increased to reduce the throttling effect and reduce the cooling output; when the indoor ambient temperature of the heating room is higher than the set temperature, the electronic expansion valve opening will be increased to reduce the throttling effect and reduce the cooling output. Effect, reduce heat output. When the ambient temperature in the heating room is lower than the set temperature, reduce the opening of the electronic expansion valve to improve the throttling effect and increase heat output. The best installation position for the air conditioner is at the corner of the wall. The air outlet of the air conditioner should be designed to discharge air toward the wall. If the air conditioner is only installed against the wall, its maximum air supply angle should reach 90° to ensure that the air can flow along the wall. The air supply method of the air conditioner is designed to supply air close to the wall and converge when it reaches the end of the room. The anti-direct blowing function is implemented by making the air flow along the wall. When the air flows to the user, it has gone through a longer flow process and the temperature has reached a suitable level. There will be no discomfort caused by the wind blowing directly on people, which can improve the user's comfort experience.

[0122] By adopting the technical solution of this embodiment, for an air conditioner with a wall-mounted air supply function, when the air outlet of the air conditioner is made to supply air close to the wall, the room volume is finally determined based on the difference in the time of the first change of the indoor air inlet temperature and the speed of the indoor fan; based on the calculated room volume and the inner and outer ring temperatures, the optimal operating frequency of the compressor is determined so that the compressor operates at a suitable frequency; thus, by making the air conditioner supply air close to the wall and combining the room volume to make the compressor operate at the optimal operating frequency, not only can the anti-direct blowing function be achieved, but also energy consumption can be reduced.

[0123] According to an embodiment of the present invention, a control device for an air conditioner corresponding to the control method for the air conditioner is also provided. Figure 8The structural schematic diagram of an embodiment of the device of the application is shown. The air conditioner is installed at the corner of the room or on the side wall of the room; the air conditioner has an outdoor unit and an indoor unit; the outdoor unit of the air conditioner has a compressor; the indoor unit of the air conditioner has an indoor fan, an air inlet and an air outlet; the air supply mode of the air conditioner includes a wall-hugging air supply mode, that is, the air sent out from the air outlet of the air conditioner can realize wall-hugging air supply; the wall-hugging air supply mode refers to the air sent out from the air outlet of the air conditioner, the flow direction of which is parallel to the wall surface of the wall where the indoor unit of the air conditioner is located, and the air flows along the wall surface under the guidance of the wall surface. Figure 9 The circulation schematic diagram of the wall-hugging air supply of the air conditioner is shown. As Figure 9 shown, in the scheme of the application, the air conditioner is installed at the corner of the room or close to the side wall, and the air outlet is close to the wall; and by adjusting the angle of the air guide grille, the air supply is blown to the wall; since the wall of the conventional room is relatively flat and has few protrusions, and the user generally does not stand close to the wall, under the guidance of the wall, the air supply of the air conditioner can flow stably until the end of the room. At the end, if the air conditioner is a double-air-outlet air conditioner, the air sent out from the double air outlets will meet and return to the air inlet side of the air conditioner from the middle; if the air conditioner is a single-air-outlet air conditioner, the air supply will flow around the room and then return to the air inlet of the air conditioner; by calculating the time when the air returned to the air inlet for the first time, the volume of the room can be known.

[0124] Figure 10 The structural schematic diagram of a wall-hugging air supply air conditioner is shown. As Figure 10 shown, the indoor unit of the wall-hugging air supply air conditioner is installed close to the wall 1; the indoor unit has an indoor heat exchanger (such as an evaporator 2 in cooling mode), and a double air duct (such as an air duct 5), a double fan (such as a fan blade 3) and a double air guide plate (such as an air guide plate 4). As Figure 10 shown, the wall-hugging air supply air conditioner generally has a large-angle air guide mechanism, and the air outlet of the air conditioner is close to the side, so that the air supply can be close to the wall in any installation mode, thereby realizing the function of the scheme of the application. In related schemes, the maximum opening angle of the air guide mechanism of the air conditioner cannot reach 180°, and in the scheme of the application, by directing the air outlet of the air conditioner to both sides instead of the front, and matching the air guide structure of the air conditioner in related schemes, a large-angle air guide can be realized. The machine using the function of the scheme of the application must have a large-angle air supply function, Figure 10The outlets of the two air ducts in the air conditioner are inclined to the two sides instead of facing the front, and the air deflector is normally opened to the maximum angle to achieve the wall-surface air supply. Since the air supply always flows along the wall surface before reaching the end of the room, the problem of air supply directly blowing people with large temperature difference does not occur, and there is no need to design functions such as reducing frequency, reducing rotating speed, adjusting air supply angle, and manually controlling the opening and closing of the anti-direct-blowing function, greatly simplifying the control logic.

[0125] In the scheme of the present application, the air outlet of the air conditioner adopts a large-angle air guide design, which can achieve wall-surface air supply. When the anti-direct-blowing function is enabled, the air conditioner directly enters maximum-angle air supply, thereby preventing the air supply from directly blowing the user located in the middle of the room. In this way, by improving the air supply mode, the air conditioner blows out the air along the wall surface, avoiding the air directly sent into the middle of the room. Considering that the user generally does not closely adhere to the wall during use, the anti-direct-blowing function can be easily realized without manually adjusting the air supply angle to avoid the user, solving the problem in related schemes that the anti-direct-blowing function of the air conditioner needs to be manually set by the user or activated by an external sensor. The "wall-surface air supply" refers to the flow direction of the air outlet of the air conditioner being parallel to the wall surface and flowing along the wall surface under the guidance of the wall surface.

[0126] In the scheme of the present application, as shown in Figure 9 The control device of the air conditioner includes an acquisition unit 102 and a control unit 104.

[0127] The control unit 104 is configured to control the air conditioner to exchange heat at the maximum heat exchange amount preset in the current running mode of the air conditioner after the air conditioner starts the current running mode of the air conditioner when the air supply mode of the air conditioner is the wall-surface air supply mode. The specific functions and processes of the control unit 104 are described in step S110.

[0128] In some embodiments, the current running mode of the air conditioner is the cooling mode of the air conditioner or the heating mode of the air conditioner.

[0129] The control unit 104 controls the air conditioner to exchange heat at the maximum heat exchange amount preset in the current running mode of the air conditioner, including that the control unit 104 is specifically further configured to control the operating frequency of the compressor to be the upper limit frequency of the compressor preset in the current running mode of the air conditioner, so as to make the air conditioner output cold energy at the maximum capacity in the cooling mode of the air conditioner or output heat energy at the maximum capacity in the heating mode of the air conditioner.

[0130] Specifically, Figure 11 The air conditioner cooling control flowchart. As Figure 11As shown in the figure, the refrigeration control process of the air conditioner comprises the following steps: step 11, starting the air conditioner to the refrigeration mode, obtaining the set temperature T1, the indoor inlet air temperature T2, the outdoor environment temperature T3, the inside fan speed (i.e. the inside fan speed) R1, the nominal refrigeration capacity Q1, the operating frequency A1 of the compressor, and the upper limit frequency A2 of the compressor. When the air conditioner is first refrigerated, it will output cold energy at the maximum capacity, record the current indoor inlet air temperature T4 for the first time, and start timing t1 from 0s. Step 12, let A1=A2, and let T4=T2.

[0131] Figure 12 The heating control process of the air conditioner is shown in the figure. As Figure 12 shown, the heating control process of the air conditioner comprises the following steps: step 21, starting the air conditioner to the heating mode, obtaining the set temperature T1, the indoor inlet air temperature T2, the outdoor environment temperature T3, the inside fan speed (i.e. the inside fan speed) R1, the nominal heating capacity Q2, the operating frequency A1 of the compressor, and the upper limit frequency A2 of the compressor. When the air conditioner is first heated, it will output heat at the maximum capacity, record the current indoor inlet air temperature T4 for the first time, and start timing t1 from 0s. Step 22, let A1=A2, and let T4=T2.

[0132] In the scheme of the present application, in the case that the air supply mode of the air conditioner is the wall clinging air supply mode, after the air conditioner starts the current operation mode of the air conditioner, the air conditioner is controlled to exchange heat at the maximum heat exchange capacity preset in the current operation mode of the air conditioner, which is beneficial to make the indoor environment temperature reach the set temperature faster to improve the comfort experience of the user.

[0133] The acquisition unit 102 is configured to acquire the current value of the indoor inlet air temperature of the air conditioner in the case where the air conditioner exchanges heat at the maximum heat exchange amount preset in the current operation mode of the air conditioner, record the first acquired current value of the indoor inlet air temperature of the air conditioner as the initial value of the indoor inlet air temperature of the air conditioner (for example, the current indoor inlet air temperature T4), and start timing (specifically, start timing from 0 s in the case where the initial value of the indoor inlet air temperature of the air conditioner is obtained) in the case where the initial value of the indoor inlet air temperature of the air conditioner is acquired; and acquire the outdoor environment temperature (for example, the outdoor environment temperature T3) of the air conditioner, acquire the rotating speed (for example, the indoor fan rotating speed R1) of the indoor fan of the air conditioner; specifically, the current value of the indoor inlet air temperature of the air conditioner can be acquired first in the case where the air conditioner starts to exchange heat at the maximum heat exchange amount preset in the current operation mode of the air conditioner, the first acquired current value of the indoor inlet air temperature of the air conditioner is recorded as the initial value of the indoor inlet air temperature of the air conditioner (for example, the current indoor inlet air temperature T4), and timing is started (specifically, timing is started from 0 s in the case where the initial value of the indoor inlet air temperature of the air conditioner is obtained) in the case where the initial value of the indoor inlet air temperature of the air conditioner is acquired; then the outdoor environment temperature (for example, the outdoor environment temperature T3) of the air conditioner is acquired, the rotating speed (for example, the indoor fan rotating speed R1) of the indoor fan of the air conditioner is acquired, the set temperature (for example, the set temperature T1) of the air conditioner is acquired, the nominal heat exchange capacity (for example, the nominal refrigerating capacity Q1, the nominal heating capacity Q2) of the air conditioner is acquired, and the current operation frequency (for example, the operation frequency A1 of the compressor) of the compressor of the air conditioner is acquired. For specific functions and processes of the control unit 104, see step S120.

[0134] The control unit 104 is further configured to stop timing and obtain the first return air time (for example, the timing time t1) of the air conditioner in the case where the current value of the indoor inlet air temperature of the air conditioner changes compared with the initial value of the indoor inlet air temperature of the air conditioner in the current operation mode of the air conditioner; that is, the time for the air sent out from the air outlet of the air conditioner to return to the air inlet of the air conditioner for the first time is timed to obtain the first return air time (for example, the timing time t1) of the air conditioner. For specific functions and processes of the control unit 104, see also step S130.

[0135] In some embodiments, the control unit 104 stops timing and obtains the first return air time of the air conditioner in the case where the current value of the indoor inlet air temperature of the air conditioner changes compared with the initial value of the indoor inlet air temperature of the air conditioner in the current operation mode of the air conditioner, including any one of the following timing cases:

[0136] The first timing case: the control unit 104 is further configured to, in the cooling mode of the air conditioner, if the current value of the indoor inlet air temperature of the air conditioner is less than the initial value of the indoor inlet air temperature of the air conditioner, stop timing to obtain the first return air time of the air conditioner. Specifically, as shown in the cooling control flow of the air conditioner, the cooling control flow further comprises: step 13, continuously detecting T2, and when T2 Figure 11

[0137] The second timing case: the control unit 104 is further configured to, in the heating mode of the air conditioner, if the current value of the indoor inlet air temperature of the air conditioner is greater than the initial value of the indoor inlet air temperature of the air conditioner, stop timing to obtain the first return air time of the air conditioner. Specifically, as shown in the heating control flow of the air conditioner, the heating control flow further comprises: step 23, continuously detecting T2, and when T2 Figure 12

[0138] In the scheme of the present application, in the current operation mode of the air conditioner, if the current value of the indoor inlet air temperature of the air conditioner changes compared with the initial value of the indoor inlet air temperature of the air conditioner, stop timing to obtain the first return air time of the air conditioner, so as to finally determine the room volume according to the difference between the first change time of the indoor inlet air temperature and the rotating speed of the indoor fan, and determine the optimal operation frequency of the compressor according to the calculated room volume and the indoor and outdoor ring temperatures, so that, in the case of realizing the anti-direct blowing function, the compressor frequency fluctuation or operation at an inappropriate frequency is avoided, and the energy consumption is further reduced.

[0139] ​​The control unit 104 is further configured to determine an optimal operation frequency of a compressor of the air conditioner in the current operation mode of the air conditioner, in combination with a current value of an indoor inlet air temperature of the air conditioner, an outdoor environment temperature of the air conditioner, a rotating speed of an indoor fan of the air conditioner, and a first-time return air time of the air conditioner, to control the compressor to operate at the determined optimal operation frequency of the compressor. The specific functions and processes of the control unit 104 are also described in step S140.

[0140] The control scheme of the air conditioner with large-angle air supply provided in the scheme of the present application installs the indoor unit of the air conditioner at a corner of a room or a side wall surface close to the corner of the room, so that the air outlet of the air conditioner is close to the wall surface, and the air outlet of the air conditioner is adjusted to blow the air to the wall surface for wall-adhering air supply. The room volume is finally determined according to the difference of the first-time change time of the indoor inlet air temperature and the rotating speed of the indoor fan. The optimal operation frequency of the compressor is determined according to the calculated room volume and the indoor and outdoor ring temperatures, so that the compressor frequency fluctuation or operation at an inappropriate frequency is avoided in the case of realizing the direct-blowing prevention function, and the energy consumption is reduced.

[0141] In some embodiments, the control unit 104 determines the optimal operation frequency of the compressor of the air conditioner in the current operation mode of the air conditioner, in combination with the current value of the indoor inlet air temperature of the air conditioner, the outdoor environment temperature of the air conditioner, the rotating speed of the indoor fan of the air conditioner, and the first-time return air time of the air conditioner, including:

[0142] The control unit 104 is further configured to determine a target rotating speed of the indoor fan of the indoor unit of the air conditioner according to the rotating speed of the indoor fan of the air conditioner in the current operation mode of the air conditioner. The specific functions and processes of the control unit 104 are also described in step S210.

[0143] In some embodiments, the control unit 104 determines the target rotating speed of the indoor fan of the indoor unit of the air conditioner according to the rotating speed of the indoor fan of the air conditioner, including:

[0144] The control unit 104 is further configured to record a product value of the square of the rotating speed of the indoor fan of the air conditioner and a first calculation coefficient preset in the current operation mode of the air conditioner as a first calculation value in the current operation mode of the air conditioner, wherein the first calculation coefficient is a constant C1. The specific functions and processes of the control unit 104 are also described in step S310.

[0145] The control unit 104 is further configured to record the product of the rotational speed of the indoor fan of the air conditioner and a second calculation coefficient preset in the current operating mode of the air conditioner as the second calculation value in the current operating mode of the air conditioner; wherein the second calculation coefficient is, for example, a constant C2. The specific functions and processing of the control unit 104 are further described in step S320.

[0146] The control unit 104 is further configured to determine the target air speed for the indoor unit of the air conditioner as the sum of the first calculated value in the current operating mode of the air conditioner, the second calculated value in the current operating mode of the air conditioner, and a third calculated coefficient preset in the current operating mode of the air conditioner; wherein the third calculated coefficient is, for example, a constant C3. The specific functions and processing of the control unit 104 are further described in step S330.

[0147] Specifically, if Figure 11 As shown, the cooling control process of the air conditioner also includes: step 14, calculating the supply air speed A3 = C1×R1^2+C2×R1+C3, where C1, C2, and C3 are constants and can be determined by the corresponding curve of the fan air volume and speed measured experimentally.

[0148] like Figure 12 As shown, the heating control process of the air conditioner also includes: Step 24, calculating the supply air speed A3 = C1×R1^2+C2×R1+C3, where C1, C2, and C3 are constants and can be determined by the corresponding curve of the fan air volume and speed measured experimentally.

[0149] In the solution of the present invention, the target wind speed of the indoor unit of the air conditioner is determined according to the rotational speed of the indoor fan of the air conditioner, and then the room volume of the air conditioner can be determined according to the target wind speed of the indoor unit of the air conditioner and the first return air time of the air conditioner, so as to adjust the operating state of the air conditioner accordingly, make the air conditioner run smoothly, reduce the energy consumption of the air conditioner, and solve the problem in the related solution that the air conditioner cannot promote the stable circulation of indoor airflow to achieve temperature regulation of the whole house.

[0150] The control unit 104 is further configured to determine the room volume of the air conditioner, specifically the room volume of the room where the air conditioner is located, based on the target air speed of the indoor unit of the air conditioner and the first return air time of the air conditioner in the current operating mode of the air conditioner. The specific functions and processing of the control unit 104 are further described in step S220.

[0151] In some embodiments, the control unit 104 determines the room volume of the air conditioner based on the target wind speed of the indoor unit of the air conditioner and the first return air time of the air conditioner, including:

[0152] The control unit 104 is further configured to record a product value of the target wind speed of the indoor unit of the air conditioner and the first return air time of the air conditioner as a third calculation value in the current operation mode of the air conditioner. The specific functions and processes of the control unit 104 are also described in step S410.

[0153] The control unit 104 is further configured to determine a product value of the third calculation value in the current operation mode of the air conditioner and a fourth calculation coefficient preset in the current operation mode of the air conditioner as the room volume of the air conditioner, wherein the fourth calculation coefficient is a constant C4. The specific functions and processes of the control unit 104 are also described in step S420.

[0154] Specifically, as shown in the cooling control flow of the air conditioner, Figure 11 The cooling control flow of the air conditioner further includes: in step 14, calculating the room volume A4=C4*(t1*A3)^2, wherein C4 is a constant and can be determined in advance according to the test of the air conditioner.

[0155] As shown in the heating control flow of the air conditioner, Figure 12 The heating control flow of the air conditioner further includes: in step 24, calculating the room volume A4=C4*(t1*A3)^2, wherein C4 is a constant and can be determined in advance according to the test of the air conditioner.

[0156] To realize the detection cycle, the air conditioner in the scheme of the present application does not flow close to the ceiling or the floor, but flows along the walls to realize the guiding function, thereby walking through all the corners in the room, which is completely different from the "close to the ceiling and horizontal air supply, or along the wall and air supply to the ground" in the related scheme. Moreover, the scheme of the present application does not involve the adjustment of the sweep angle during the sweep, but only involves the calculation of the room heat load and the optimal compressor frequency each time the air conditioner is started, so as to realize the energy saving and the cooling and heating of the whole house. In the scheme of the present application, by making the air supply of the air conditioner flow along the wall, the room air can be effectively pushed to flow in a predetermined manner, and then the room volume is finally determined according to the difference between the first change time of the indoor inlet air temperature and the speed of the indoor fan. By improving the air supply mode, the air supply of the air conditioner blows along the wall, and since there is generally no obvious protrusion or obstacle on the wall, the air supply can effectively flow along the wall, thereby driving the air flow in the room to form a stable circulating flow field. By calculating the time length and the wind speed of the first cooled circulating air returning to the air conditioner, the volume of the room can be calculated, and the operation state of the air conditioner is adjusted accordingly, thereby solving the problem that the air conditioner in the related scheme cannot drive the indoor air flow to circulate stably to realize the temperature regulation of the whole house.

[0157] The control unit 104 is further configured to determine, under the current operating mode of the air conditioner, an optimal operating frequency of the air conditioner's compressor based on the room volume of the air conditioner and the current value of the indoor air inlet temperature of the air conditioner. The specific functions and processing of the control unit 104 are further described in step S230.

[0158] In the solution of the present invention, see Figure 11 and Figure 12 In the example shown, the air conditioner can determine the optimal operating frequency of the compressor based on the calculated room volume and internal and external loop temperatures, thereby avoiding compressor frequency fluctuations or operation at an inappropriate frequency, thereby reducing energy consumption.

[0159] In some embodiments, the control unit 104 determines the optimal operating frequency of the compressor of the air conditioner in the current operating mode of the air conditioner according to the room volume of the air conditioner and the current value of the indoor air inlet temperature of the air conditioner, including:

[0160] The control unit 104 is further configured to record the product of the room volume of the air conditioner and a fifth calculation coefficient preset in the current operating mode of the air conditioner as a fourth calculation value in the current operating mode of the air conditioner; wherein the fifth calculation coefficient is, for example, a constant C5. The specific functions and processing of the control unit 104 are further described in step S510.

[0161] The control unit 104 is further configured to record the product of the current value of the indoor air inlet temperature of the air conditioner and a sixth calculation coefficient preset in the current operating mode of the air conditioner as the fifth calculation value in the current operating mode of the air conditioner; wherein the sixth calculation coefficient is, for example, a constant C6. The specific functions and processing of the control unit 104 are further described in step S520.

[0162] The control unit 104 is further configured to, when the current operating mode of the air conditioner is the cooling mode of the air conditioner, determine the sum of the fourth calculated value in the current operating mode of the air conditioner, the fifth calculated value in the current operating mode of the air conditioner, and the seventh calculated coefficient preset in the current operating mode of the air conditioner as the room heat load rate of the air conditioner in the current operating mode of the air conditioner. The specific functions and processing of the control unit 104 are further described in step S530.

[0163] The control unit 104 is further configured to, when the current operating mode of the air conditioner is the heating mode, determine the sum of the difference between the fourth calculated value in the current operating mode of the air conditioner and the fifth calculated value in the current operating mode of the air conditioner and a seventh calculated coefficient preset in the current operating mode of the air conditioner as the room heat load rate of the air conditioner in the current operating mode of the air conditioner. The specific functions and processing of the control unit 104 are further described in step S540.

[0164] The control unit 104 is further configured to determine an optimal operating frequency for the air conditioner's compressor based on the room heat load rate of the air conditioner in the air conditioner's current operating mode and the current value of the air conditioner's indoor inlet air temperature. The specific functions and processing of the control unit 104 are further described in step S550.

[0165] Specifically, if Figure 11 As shown, the cooling control process of the air conditioner also includes: in step 14, calculating the room heat load rate n1 = (C5×A4+C6×T3+C7) / Q1, where C5, C6, and C7 are constants and can be determined in advance based on the test conditions of the air conditioner.

[0166] like Figure 11 As shown, the heating control process of the air conditioner also includes: in step 24, calculating the room heat load rate n1 = (C5×A4-C6×T3+C7) / Q2, where C5, C6, and C7 are constants and can be determined in advance based on the test conditions of the air conditioner.

[0167] In this solution, the room's heat load is determined based on the room's volume and outer air conditioning temperature, and the compressor's operating parameters are adjusted to their optimal state. This information allows the room's heat load to be calculated, allowing the compressor's operating parameters to be adjusted to their optimal state without relying on fluctuations in the inner air conditioning temperature. This ensures smooth air conditioner operation and reduces energy consumption, resolving the issue in related solutions where air conditioners can only adjust based on fluctuations in the inner and outer air conditioning temperatures.

[0168] In some embodiments, when the current operating mode of the air conditioner is the cooling mode of the air conditioner, the control unit 104 determines the optimal operating frequency of the compressor of the air conditioner according to the room heat load rate of the air conditioner in the current operating mode of the air conditioner and the current value of the indoor inlet air temperature of the air conditioner, including:

[0169] The control unit 104 is specifically further configured to, in a case where the current operation mode of the air conditioner is the cooling mode of the air conditioner, determine whether the room heat load ratio of the air conditioner in the cooling mode of the air conditioner is less than or equal to the set heat load ratio in the cooling mode of the air conditioner, and determine whether the current value of the indoor inlet air temperature of the air conditioner is greater than or equal to the difference between the set temperature of the air conditioner and the set value. The specific functions and processes of the control unit 104 also refer to step S610.

[0170] The control unit 104 is specifically further configured to, in a case where the current operation mode of the air conditioner is the cooling mode of the air conditioner, determine whether the room heat load ratio of the air conditioner in the cooling mode of the air conditioner is less than or equal to the set heat load ratio in the cooling mode of the air conditioner, and determine whether the current value of the indoor inlet air temperature of the air conditioner is greater than or equal to the difference between the set temperature of the air conditioner and the set value. The specific functions and processes of the control unit 104 also refer to step S610.

[0171] The control unit 104 is specifically further configured to, in a case where the current operation mode of the air conditioner is the cooling mode of the air conditioner, determine whether the room heat load ratio of the air conditioner in the cooling mode of the air conditioner is less than or equal to the set heat load ratio in the cooling mode of the air conditioner, and determine whether the current value of the indoor inlet air temperature of the air conditioner is greater than or equal to the difference between the set temperature of the air conditioner and the set value. The specific functions and processes of the control unit 104 also refer to step S610.

[0172] The control unit 104 is further configured to determine that the optimal operation frequency of the compressor of the air conditioner is 0 if it is determined that the current value of the indoor inlet air temperature of the air conditioner is less than the difference between the set temperature and the set value of the air conditioner, and restart the compressor until it is determined that the current value of the indoor inlet air temperature of the air conditioner is greater than or equal to the difference between the set temperature and the set value of the air conditioner, and then return to determine the optimal operation frequency of the compressor of the air conditioner according to the room heat load rate of the air conditioner in the cooling mode and the current value of the indoor inlet air temperature of the air conditioner. The specific functions and processes of the control unit 104 are also described in step S640.

[0173] Specifically, as shown in Figure 12 the cooling control flow of the air conditioner further comprises:

[0174] Step 15, obtain the upper limit frequency A2 of the compressor and the lower limit frequency A5 of the compressor.

[0175] Step 16, if n1≤1 and T2≥T1-1, set the operation frequency A1 of the compressor as (A2-A5)×n1+A5; if n1>1 and T2≥T1-1, set the operation frequency A1 of the compressor as A2; otherwise, maintain the original state.

[0176] Step 17, if T2<T1-1, set the operation frequency A1 of the compressor as 0, otherwise maintain the original state.

[0177] Step 18, loop steps 14-17 until the air conditioner is turned off or adjusted to other modes.

[0178] Referring to Figure 11In the example shown, when the air conditioner is operating in cooling mode, the room's heat load factor n1 can be calculated by substituting the timer time t1, the outdoor ambient temperature T3, the indoor fan speed R1, and the nominal cooling capacity Q1 into the equation in step 14. C1, C2, C3, C4, C5, C6, and C7 in the equation are preset parameters that can be measured experimentally. The optimal compressor operating frequency can be determined based on the current room heat load factor n1 and the current upper and lower compressor frequency limits A2 and A5. When the outdoor ambient temperature T3 is too low, the room's heat load factor n1 is extremely low, and the compressor operates at the lower frequency limit A5 to prevent the compressor frequency from falling below the lower frequency limit. If the cooling capacity still exceeds the heat load, the indoor inlet air temperature T2 will decrease over time, eventually falling below the set temperature T1 (i.e., T2 < T1-1). At this point, start-stop control is required, setting A1 = 0 until T2 ≥ T1-1, at which point the compressor is restarted. This implements the control strategy for operating at the lower frequency limit while also maintaining high capacity. In the relevant scheme, the energy efficiency of the compressor is low at ultra-low frequency, and there is a situation of start-stop control. The dividing line of start-stop control is generally the lower limit frequency, which can be measured through experiments.

[0179] In the solution of the present invention, the air outlet of the air conditioner can discharge air toward the wall, so that the supply air flows along the wall. When the supply air flows to the user, it has undergone a long flow process and the temperature has reached a suitable level. There will be no discomfort of the wind blowing directly on people, which can improve the user's comfort experience; when the current operating mode of the air conditioner is the cooling mode of the air conditioner, the optimal operating frequency of the compressor of the air conditioner is determined according to the room heat load rate of the air conditioner under the current operating mode of the air conditioner and the current value of the indoor inlet air temperature of the air conditioner, so that the air conditioner runs smoothly and reduces the energy consumption of the air conditioner.

[0180] In some embodiments, when the current operating mode of the air conditioner is the heating mode of the air conditioner, the control unit 104 determines the optimal operating frequency of the compressor of the air conditioner according to the room heat load rate of the air conditioner in the current operating mode of the air conditioner and the current value of the indoor inlet air temperature of the air conditioner, including:

[0181] The control unit 104 is further configured to, when the current operating mode of the air conditioner is the heating mode of the air conditioner, determine whether the room heat load rate of the air conditioner in the heating mode of the air conditioner is less than or equal to the set heat load rate in the heating mode of the air conditioner, and determine whether the current value of the indoor inlet air temperature of the air conditioner is less than or equal to the sum of the set temperature of the air conditioner and the set value. The specific functions and processing of the control unit 104 are also described in step S710.

[0182] The control unit 104 is further configured to, if it is determined that the room thermal load ratio of the air conditioner in the heating mode is less than or equal to the set thermal load ratio of the air conditioner in the heating mode and that the current value of the indoor inlet air temperature of the air conditioner is less than or equal to the sum of the set temperature and the set value of the air conditioner, determine the sum of the upper limit frequency of the compressor preset in the heating mode of the air conditioner and the lower limit frequency of the compressor preset in the heating mode of the air conditioner, determine the product of the sum and the room thermal load ratio of the air conditioner in the heating mode of the air conditioner, and determine the sum of the lower limit frequency of the compressor preset in the heating mode of the air conditioner as the optimal operating frequency of the compressor of the air conditioner, and then return to determine the optimal operating frequency of the compressor of the air conditioner again according to the room thermal load ratio of the air conditioner in the heating mode and the current value of the indoor inlet air temperature of the air conditioner. The specific functions and processes of the control unit 104 are also described with reference to step S720.

[0183] The control unit 104 is further configured to, if it is determined that the room thermal load ratio of the air conditioner in the heating mode is greater than the set thermal load ratio of the air conditioner in the heating mode and that the current value of the indoor inlet air temperature of the air conditioner is less than or equal to the sum of the set temperature and the set value of the air conditioner, determine the upper limit frequency of the compressor preset in the heating mode of the air conditioner as the optimal operating frequency of the compressor of the air conditioner, and then return to determine the optimal operating frequency of the compressor of the air conditioner again according to the room thermal load ratio of the air conditioner in the heating mode and the current value of the indoor inlet air temperature of the air conditioner. The specific functions and processes of the control unit 104 are also described with reference to step S730.

[0184] The control unit 104 is further configured to, if it is determined that the current value of the indoor inlet air temperature of the air conditioner is greater than the sum of the set temperature and the set value of the air conditioner, determine the optimal operating frequency of the compressor of the air conditioner as 0, and restart the compressor only when it is determined that the current value of the indoor inlet air temperature of the air conditioner is less than or equal to the sum of the set temperature and the set value of the air conditioner, and then return to determine the optimal operating frequency of the compressor of the air conditioner again according to the room thermal load ratio of the air conditioner in the heating mode and the current value of the indoor inlet air temperature of the air conditioner. The specific functions and processes of the control unit 104 are also described with reference to step S740.

[0185] Specifically, as shown in FIG. 8, the heating control process of the air conditioner further includes: ​

[0186] ​Step 25: Obtain the upper limit frequency A2 and the lower limit frequency A5 of the compressor.

[0187] Step 26: If n1≤1 and T2≤T1+1, set the operating frequency of the compressor to A1=(A2-A5)×n1+A5; if n1>1 and T2≤T1+1, set the operating frequency of the compressor to A1=A2; otherwise, maintain the original state.

[0188] Step 27: If T2>T1+1, set the operating frequency of the compressor to A1=0, otherwise maintain the original state.

[0189] Step 28: Repeat steps 24 to 27 until the air conditioner is turned off or adjusted to another mode.

[0190] See also ​ In the example shown, when the air conditioner is operating in heating mode, the room's heat load factor n1 can be calculated by substituting the timer time t1, the outdoor ambient temperature T3, the indoor fan speed R1, and the nominal heating capacity Q2 into the equation in step 24. C1, C2, C3, C4, C5, C6, and C7 in the equation are preset parameters that can be measured experimentally. The optimal compressor operating frequency can be determined based on the current room heat load factor n1 and the current upper and lower compressor frequency limits A2 and A5. When the outdoor ambient temperature T3 is too high, the room's heat load factor n1 is extremely low, and the compressor operates at the lower frequency limit A5 to prevent the compressor frequency from falling below the lower frequency limit. If the heating capacity still exceeds the heat load, the indoor inlet air temperature T2 will increase over time, eventually exceeding the set temperature T1 (i.e., T2 > T1 + 1). At this point, start-stop control is required, setting A1 = 0 until T2 ≤ T1 - 1, at which point the compressor is restarted. This implements the control strategy for operating at the lower frequency limit while also operating at a high capacity. In the relevant scheme, the energy efficiency of the compressor is low at ultra-low frequency, and there is a situation of start-stop control. The dividing line of start-stop control is generally the lower limit frequency, which can be measured through experiments.

[0191] In the solution of the present invention, the air outlet of the air conditioner can discharge air toward the wall, so that the supply air flows along the wall. When the supply air flows to the user, it has undergone a long flow process and the temperature has reached a suitable level. There will be no discomfort of the wind blowing directly on people, which can improve the user's comfort experience; when the current operating mode of the air conditioner is the heating mode of the air conditioner, the optimal operating frequency of the compressor of the air conditioner is determined according to the room heat load rate of the air conditioner under the current operating mode of the air conditioner and the current value of the indoor inlet air temperature of the air conditioner, so that the air conditioner runs smoothly and reduces the energy consumption of the air conditioner.

[0192] In the scheme of the present application, the compressor frequency in the air conditioner must be adjustable, the compressor control mode is to determine the optimal frequency according to the room heat load; the output capacity can be further fine-tuned by setting an adjustable electronic expansion valve; the optimal installation position of the air conditioner is at the corner of the wall, the air outlet of the air conditioner should be designed to blow towards the wall surface, if the air conditioner is installed only against the wall, the maximum air supply angle should reach 90° to ensure that the air supply can flow along the wall surface; the air supply mode of the air conditioner is designed to be wall-hugging, and to converge when reaching the end of the room; the implementation mode of the anti-direct-blowing function: by making the air supply flow along the wall surface, when the air supply flows to the user, it has undergone a long flow process, and the temperature has reached an appropriate level, so there is no discomfort of direct blowing, and the user's comfort experience can be improved.

[0193] Since the processing and functions realized by the device of the present embodiment are basically corresponding to the foregoing embodiments, principles and examples of the method, the description of the present embodiment will not be elaborated on the related descriptions in the foregoing embodiments.

[0194] According to the embodiments of the present application, an air conditioner corresponding to the control device of the air conditioner is also provided. The air conditioner can include the control device of the air conditioner described above.

[0195] Since the processing and functions realized by the air conditioner of the present embodiment are basically corresponding to the foregoing embodiments, principles and examples of the device, the description of the present embodiment will not be elaborated on the related descriptions in the foregoing embodiments.

[0196] According to the embodiments of the present application, a computer program product corresponding to the air conditioner is also provided, which includes a computer program, and the computer program realizes the steps of the control method of the air conditioner described above when executed by a processor.

[0197] Since the processing and functions realized by the product of the present embodiment are basically corresponding to the foregoing embodiments, principles and examples of the air conditioner, the description of the present embodiment will not be elaborated on the related descriptions in the foregoing embodiments.

[0198] According to the embodiments of the present application, a storage medium corresponding to the control method of the air conditioner is also provided, which includes a stored program, wherein the device where the storage medium is located executes the steps of the control method of the air conditioner described above when the program runs.

[0199] Since the processing and functions realized by the storage medium of the present embodiment are basically corresponding to the foregoing embodiments, principles and examples of the method, the description of the present embodiment will not be elaborated on the related descriptions in the foregoing embodiments.

[0200] In summary, the person skilled in the art can easily understand that the above-mentioned advantageous modes can be freely combined and superimposed without conflict.

[0201] The above merely provides an example of the present application, but is not intended to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of claims of the present application.

Claims

1. A method for controlling an air conditioner, characterized in that: The air supply mode of the air conditioner includes a wall-mounted air supply mode; the wall-mounted air supply mode refers to an air supply mode in which the air discharged from the air outlet of the air conditioner flows in a direction parallel to the wall surface on which the indoor unit of the air conditioner is located and flows along the wall surface under the guidance of the wall surface; The control method of the air conditioner comprises: When the air supply mode of the air conditioner is the wall-mounted air supply mode, after the air conditioner starts the current operation mode of the air conditioner, controlling the air conditioner to exchange heat according to the maximum heat exchange rate preset in the current operation mode of the air conditioner; obtaining a current value of an indoor air inlet temperature of the air conditioner when the air conditioner is exchanging heat according to a preset maximum heat exchange amount in the current operating mode of the air conditioner, recording the current value of the indoor air inlet temperature of the air conditioner obtained for the first time as an initial value of the indoor air inlet temperature of the air conditioner, and starting a timer when the initial value of the indoor air inlet temperature of the air conditioner is obtained; and obtaining an outdoor ambient temperature of the air conditioner and a rotational speed of an indoor fan of the air conditioner; In the current operation mode of the air conditioner, when the current value of the indoor air inlet temperature of the air conditioner changes compared to the initial value of the indoor air inlet temperature of the air conditioner, stopping the timing to obtain the first return air time of the air conditioner; In the current operating mode of the air conditioner, the optimal operating frequency of the compressor of the air conditioner is determined in combination with the current value of the indoor air inlet temperature of the air conditioner, the outdoor ambient temperature of the air conditioner, the speed of the indoor fan of the air conditioner, and the first return air time of the air conditioner to control the compressor to operate according to the determined optimal operating frequency of the compressor.

2. The air conditioner control method according to claim 1, characterized in that: The current operating mode of the air conditioner is the cooling mode of the air conditioner or the heating mode of the air conditioner; in, Controlling the air conditioner to exchange heat according to a preset maximum heat exchange amount under the current operating mode of the air conditioner includes: controlling the operating frequency of the compressor to be an upper limit frequency of the compressor preset in the current operating mode of the air conditioner, so that the air conditioner outputs cooling capacity at its maximum capacity in the cooling mode of the air conditioner, or outputs heat at its maximum capacity in the heating mode of the air conditioner; and / or, In the current operation mode of the air conditioner, when a current value of the indoor air inlet temperature of the air conditioner changes compared to an initial value of the indoor air inlet temperature of the air conditioner, stopping the timing to obtain the first return air time of the air conditioner includes: In the cooling mode of the air conditioner, if the current value of the indoor air inlet temperature of the air conditioner is less than the initial value of the indoor air inlet temperature of the air conditioner, then stop timing to obtain the first return air time of the air conditioner; In the heating mode of the air conditioner, if the current value of the indoor air inlet temperature of the air conditioner is greater than the initial value of the indoor air inlet temperature of the air conditioner, the timing is stopped to obtain the first return air time of the air conditioner.

3. The air conditioner control method according to claim 1 or 2, characterized in that: In the current operating mode of the air conditioner, determining the optimal operating frequency of the compressor of the air conditioner in combination with a current value of the indoor air inlet temperature of the air conditioner, the outdoor ambient temperature of the air conditioner, the speed of the indoor fan of the air conditioner, and the first return air time of the air conditioner includes: determining a target wind speed of the indoor unit of the air conditioner according to the rotation speed of the indoor fan of the air conditioner; determining a room volume of the air conditioner according to a target wind speed of an indoor unit of the air conditioner and a first return air time of the air conditioner; In a current operation mode of the air conditioner, an optimal operating frequency of the compressor of the air conditioner is determined according to the room volume of the air conditioner and the current value of the indoor air inlet temperature of the air conditioner.

4. The air conditioner control method according to claim 3, characterized in that: Determining a target wind speed of an indoor unit of the air conditioner according to a rotation speed of an indoor fan of the air conditioner includes: The product value of the square of the rotation speed of the indoor fan of the air conditioner and the first calculation coefficient preset in the current operation mode of the air conditioner is recorded as the first calculation value in the current operation mode of the air conditioner; The product value of the rotation speed of the indoor fan of the air conditioner and the second calculation coefficient preset in the current operation mode of the air conditioner is recorded as the second calculation value in the current operation mode of the air conditioner; determining a sum of a first calculated value in the current operating mode of the air conditioner, a second calculated value in the current operating mode of the air conditioner, and a third calculated coefficient preset in the current operating mode of the air conditioner as a target wind speed of the indoor unit of the air conditioner; and / or, Determining the room volume of the air conditioner according to a target wind speed of an indoor unit of the air conditioner and a first return air time of the air conditioner includes: Recording the product of the target wind speed of the indoor unit of the air conditioner and the first return air time of the air conditioner as a third calculated value under the current operation mode of the air conditioner; A product value of the third calculation value in the current operation mode of the air conditioner and a fourth calculation coefficient preset in the current operation mode of the air conditioner is determined as the room volume of the air conditioner.

5. The air conditioner control method according to claim 3, characterized in that: Determining, in a current operating mode of the air conditioner, an optimal operating frequency of the compressor of the air conditioner according to the room volume of the air conditioner and a current value of the indoor air inlet temperature of the air conditioner, comprising: Recording the product value of the room volume of the air conditioner and the fifth calculation coefficient preset in the current operation mode of the air conditioner as the fourth calculation value in the current operation mode of the air conditioner; Recording the product of the current value of the indoor air inlet temperature of the air conditioner and the sixth calculation coefficient preset in the current operation mode of the air conditioner as the fifth calculation value in the current operation mode of the air conditioner; When the current operation mode of the air conditioner is the cooling mode of the air conditioner, determining the sum of the fourth calculated value in the current operation mode of the air conditioner, the fifth calculated value in the current operation mode of the air conditioner, and a seventh calculation coefficient preset in the current operation mode of the air conditioner as the room heat load rate of the air conditioner in the current operation mode of the air conditioner; When the current operation mode of the air conditioner is the heating mode of the air conditioner, a difference between the fourth calculated value in the current operation mode of the air conditioner and the fifth calculated value in the current operation mode of the air conditioner is determined as the sum of a seventh calculation coefficient preset in the current operation mode of the air conditioner as the room heat load rate of the air conditioner in the current operation mode of the air conditioner; An optimal operating frequency of the compressor of the air conditioner is determined according to a room heat load rate of the air conditioner in a current operating mode of the air conditioner and a current value of an indoor air inlet temperature of the air conditioner.

6. The air conditioner control method according to claim 5, characterized in that: in, When the current operating mode of the air conditioner is the cooling mode of the air conditioner, determining the optimal operating frequency of the compressor of the air conditioner according to the room heat load rate of the air conditioner in the current operating mode of the air conditioner and the current value of the indoor inlet air temperature of the air conditioner includes: determining, when the current operating mode of the air conditioner is the cooling mode of the air conditioner, whether a room heat load rate of the air conditioner in the cooling mode of the air conditioner is less than or equal to a set heat load rate in the cooling mode of the air conditioner, and determining whether a current value of an indoor inlet air temperature of the air conditioner is greater than or equal to a difference between a set temperature of the air conditioner and a set value; If it is determined that the room heat load rate of the air conditioner in the cooling mode of the air conditioner is less than or equal to the set heat load rate in the cooling mode of the air conditioner, and it is determined that the current value of the indoor inlet air temperature of the air conditioner is greater than or equal to the difference between the set temperature of the air conditioner and the set value, then the difference between the upper limit frequency of the compressor preset in the cooling mode of the air conditioner and the lower limit frequency of the compressor preset in the cooling mode of the air conditioner is determined, the product value of the difference and the room heat load rate of the air conditioner in the cooling mode of the air conditioner is determined, and the sum of the product value and the lower limit frequency of the compressor preset in the cooling mode of the air conditioner is determined as the optimal operating frequency of the compressor of the air conditioner; If it is determined that the room heat load rate of the air conditioner in the cooling mode of the air conditioner is greater than the set heat load rate in the cooling mode of the air conditioner, and it is determined that the current value of the indoor air inlet temperature of the air conditioner is greater than or equal to the difference between the set temperature of the air conditioner and the set value, then the upper limit frequency of the compressor preset in the cooling mode of the air conditioner is determined as the optimal operating frequency of the compressor of the air conditioner; If it is determined that the current value of the indoor air inlet temperature of the air conditioner is less than the difference between the set temperature of the air conditioner and the set value, the optimal operating frequency of the compressor of the air conditioner is determined to be 0, and the compressor is not restarted until it is determined that the current value of the indoor air inlet temperature of the air conditioner is greater than or equal to the difference between the set temperature of the air conditioner and the set value; and / or, When the current operating mode of the air conditioner is the heating mode of the air conditioner, determining the optimal operating frequency of the compressor of the air conditioner according to the room heat load rate of the air conditioner in the current operating mode of the air conditioner and the current value of the indoor inlet air temperature of the air conditioner includes: determining, when the current operating mode of the air conditioner is the heating mode of the air conditioner, whether a room heat load rate of the air conditioner in the heating mode of the air conditioner is less than or equal to a set heat load rate in the heating mode of the air conditioner, and determining whether a current value of the indoor inlet air temperature of the air conditioner is less than or equal to a sum of a set temperature of the air conditioner and a set value; If it is determined that the room heat load rate of the air conditioner in the heating mode of the air conditioner is less than or equal to the set heat load rate in the heating mode of the air conditioner, and it is determined that the current value of the indoor inlet air temperature of the air conditioner is less than or equal to the sum of the set temperature of the air conditioner and the set value, then determining the sum of the upper limit frequency of the compressor preset in the heating mode of the air conditioner and the lower limit frequency of the compressor preset in the heating mode of the air conditioner, determining the product value of the sum value and the room heat load rate of the air conditioner in the heating mode of the air conditioner, and determining the sum of the product value and the lower limit frequency of the compressor preset in the heating mode of the air conditioner as the optimal operating frequency of the compressor of the air conditioner; If it is determined that the room heat load rate of the air conditioner in the heating mode of the air conditioner is greater than the set heat load rate in the heating mode of the air conditioner, and it is determined that the current value of the indoor inlet air temperature of the air conditioner is less than or equal to the sum of the set temperature of the air conditioner and the set value, then the upper limit frequency of the compressor preset in the heating mode of the air conditioner is determined as the optimal operating frequency of the compressor of the air conditioner; If it is determined that the current value of the indoor air inlet temperature of the air conditioner is greater than the sum of the set temperature and the set value of the air conditioner, the optimal operating frequency of the compressor of the air conditioner is determined to be 0, and the compressor will not be restarted until it is determined that the current value of the indoor air inlet temperature of the air conditioner is less than or equal to the sum of the set temperature and the set value of the air conditioner.

7. A control device for an air conditioner, characterized in that: The air supply mode of the air conditioner includes a wall-mounted air supply mode; the wall-mounted air supply mode refers to an air supply mode in which the air discharged from the air outlet of the air conditioner flows in a direction parallel to the wall surface on which the indoor unit of the air conditioner is located and flows along the wall surface under the guidance of the wall surface; The control device of the air conditioner comprises: The control unit is configured to, when the air supply mode of the air conditioner is the wall-mounted air supply mode, control the air conditioner to exchange heat according to a maximum heat exchange rate preset in the current operating mode of the air conditioner after the air conditioner starts the current operating mode of the air conditioner; an acquiring unit configured to, when the air conditioner is exchanging heat at a maximum heat exchange rate preset in a current operating mode of the air conditioner, acquire a current value of an indoor air inlet temperature of the air conditioner, record the first acquired current value of the indoor air inlet temperature of the air conditioner as an initial value of the indoor air inlet temperature of the air conditioner, and start timing when the initial value of the indoor air inlet temperature of the air conditioner is acquired; and acquire an outdoor ambient temperature of the air conditioner and a speed of an indoor fan of the air conditioner; The control unit is further configured to, in the current operating mode of the air conditioner, stop timing when a current value of the indoor air inlet temperature of the air conditioner changes compared to an initial value of the indoor air inlet temperature of the air conditioner, and obtain a first return air time of the air conditioner; The control unit is further configured to determine the optimal operating frequency of the compressor of the air conditioner in the current operating mode of the air conditioner, based on the current value of the indoor air inlet temperature of the air conditioner, the outdoor ambient temperature of the air conditioner, the speed of the indoor fan of the air conditioner, and the first return air time of the air conditioner, so as to control the compressor to operate according to the determined optimal operating frequency of the compressor.

8. An air conditioner, characterized in that: include: The control device for an air conditioner as claimed in claim 7.

9. A storage medium, characterized in that: The storage medium includes a stored program, wherein when the program is executed, the device where the storage medium is located is controlled to execute the air conditioner control method according to any one of claims 1 to 6.

10. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the air conditioner control method according to any one of claims 1 to 6 are implemented.

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