Return air control method, device and air conditioning equipment

Abstract

The present invention discloses a return air control method, device and air conditioning equipment. The method comprises: adjusting the return air position of the air conditioning equipment and the vertical return air direction of the air outlet according to the operation mode of the air conditioning equipment; adjusting the horizontal return air direction of the air outlet according to the air outlet direction of the air conditioning equipment. Through the present invention, it is possible to adjust the return air position according to the operation mode, and adjust the return air direction according to the operation mode and the air outlet direction, so that the return air direction avoids the air outlet air flow direction, a pressure difference is formed in the indoor space, and the air flow in the space is accelerated, thereby achieving rapid temperature balance and improving comfort.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning equipment, and in particular to a return air control method, device and air conditioning equipment. Background Art

[0002] As people's requirements for comfort are getting higher and higher, air conditioning equipment products have also made more and more innovations in comfort control, such as waterfall cooling, carpet heating and other air supply methods. Its basic control principle is to use the characteristics of cold air sinking and hot air floating, which not only accelerates the cooling and heating effects of the space, but also improves the user's comfort experience.

[0003] Figure 1 The wind direction control diagram of the existing air conditioning equipment is shown in FIG. Figure 1 As shown, the main return air area is the same as the main outlet air area, and the comfort control is basically carried out around the outlet air. The return air generally only adjusts the return air outlet wind speed to ensure normal return air, and no other operations are performed. This may cause the following problems: the main return air area is the same as the main outlet air area, so the entire air circulation is actually carried out around this area, and the surrounding areas can only rely on slow air circulation to ultimately achieve spatial temperature balance, which takes a relatively long time and is not conducive to the rapid balance of the overall temperature of the indoor space.

[0004] With regard to the problem in the prior art that the overall temperature of the indoor space cannot be quickly balanced, no effective solution has been proposed yet. Summary of the invention

[0005] The embodiments of the present invention provide a return air control method, device and air conditioning equipment to solve the problem in the prior art that the overall temperature of the indoor space cannot be quickly balanced.

[0006] In order to solve the above technical problems, the present invention provides a return air control method, which is applied to an air conditioning device having at least two air outlets, wherein the at least two air outlets include a first air outlet and a second air outlet, wherein the first air outlet is arranged in an upper indoor space, and the second air outlet is arranged in a lower indoor space, and the method comprises:

[0007] Adjusting the return air position of the air conditioner and the vertical return air direction of the air outlet according to the operation mode of the air conditioner;

[0008] Adjust the horizontal return air direction of the air outlet according to the air outlet direction of the air conditioning equipment.

[0009] Further, adjusting the return air position of the air conditioner and the vertical return air direction of the air outlet according to the operation mode of the air conditioner includes:

[0010] In cooling mode, controlling the second air outlet of the air conditioning device to return air, and controlling the vertical return air direction of the second air outlet to point to the lower space of the room;

[0011] In the heating mode, the first air outlet of the air conditioning device is controlled to return air, and the vertical return air direction of the first air outlet is controlled to point to the upper space of the room.

[0012] Furthermore, in the cooling mode, the second air outlet of the air conditioning device is controlled to return air, and the vertical return air direction of the second air outlet is controlled to point to the lower space of the room, including:

[0013] Controlling the acute angle formed by the vertical return air direction of the second air outlet and the horizontal plane to be smaller than a first preset threshold value, so that the vertical return air direction of the second air outlet points to the lower space of the room;

[0014] Furthermore, in the heating mode, the first air outlet of the air conditioning device is controlled to return air, and the vertical return air direction of the first air outlet is controlled to point to the upper space of the room, including:

[0015] The acute angle formed by the vertical return air direction of the first air outlet and the horizontal plane is controlled to be smaller than a second preset threshold value, so that the vertical return air direction of the first air outlet points to the upper space of the room.

[0016] Further, adjusting the horizontal return air direction of the air outlet according to the air outlet direction of the air conditioning equipment includes:

[0017] Adjust the horizontal return air direction of the air outlet to avoid the air outlet direction.

[0018] Further, adjusting the horizontal return air direction of the air outlet to avoid the air outlet direction includes:

[0019] If the air outlet direction is directed toward the first space, the horizontal air return direction of the air outlet is controlled to be directed toward the second space;

[0020] If the air outlet direction is directed toward the second space, the horizontal air return direction of the air outlet is controlled to be directed toward the first space;

[0021] The first space and the second space are two different spaces formed by dividing the indoor space by a virtual plane perpendicular to the horizontal plane.

[0022] The present invention also provides a return air control device for implementing the return air control method, the device comprising:

[0023] A first control module, used for adjusting the return air position of the air conditioner and the vertical return air direction of the air outlet according to the operation mode of the air conditioner;

[0024] The second control module is used to adjust the horizontal return air direction of the air outlet according to the air outlet direction of the air conditioning equipment.

[0025] Furthermore, the first control module includes:

[0026] A first control unit is used to control the return air of the second air outlet of the air conditioning device in the cooling mode, and control the vertical return air direction of the second air outlet to point to the lower space of the room;

[0027] The second control unit is used to control the return air of the first air outlet of the air-conditioning equipment in the heating mode, and control the vertical return air direction of the first air outlet to point to the upper space of the room.

[0028] The present invention also provides an air conditioning device, comprising the above-mentioned return air control device.

[0029] The present invention also provides a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the above-mentioned return air control method is implemented.

[0030] By applying the technical solution of the present invention, the return air position of the air-conditioning equipment and the vertical return air direction of the air outlet are adjusted according to the operating mode of the air-conditioning equipment; the horizontal return air direction of the air outlet is adjusted according to the air outlet direction of the air-conditioning equipment. It is possible to adjust the return air position according to the operating mode, and adjust the return air direction according to the operating mode and the air outlet direction, so that the return air direction avoids the air outlet airflow direction, thereby forming a pressure difference in the space, accelerating the air flow in the space, and further achieving rapid temperature equalization and improving comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of wind direction control of existing air conditioning equipment;

[0032] Figure 2 is a flow chart of a return air control method according to an embodiment of the present invention;

[0033] Figure 3 Schematic diagram of return air control in cooling mode according to an embodiment of the present invention;

[0034] Figure 4 is a schematic diagram of return air control in heating mode according to an embodiment of the present invention;

[0035] Figure 5 is a control principle diagram of the horizontal air outlet direction according to an embodiment of the present invention;

[0036] Figure 6 is a control principle diagram of the horizontal air outlet direction according to another embodiment of the present invention;

[0037] Figure 7 is a structural diagram of a return air control device according to an embodiment of the present invention;

[0038] Figure 8 4 is a structural diagram of a return air control device according to another embodiment of the present invention. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two.

[0041] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0042] It should be understood that although the terms first, second, etc. may be used to describe control modules in the embodiments of the present invention, these control modules should not be limited to these terms. These terms are only used to distinguish control modules that implement different functions. For example, without departing from the scope of the embodiments of the present invention, the first control module may also be referred to as the second control module, and similarly, the second control module may also be referred to as the first control module.

[0043] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.

[0044] It should also be noted that the term "includes", "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, so that a commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the commodity or device including the elements.

[0045] The optional embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0046] Example 1

[0047] This embodiment provides a return air control method, which is applied to an air conditioning device having at least two air outlets, wherein the at least two air outlets include a first air outlet and a second air outlet, wherein the first air outlet is arranged in an upper indoor space, and the second air outlet is arranged in a lower indoor space, Figure 2 is a flow chart of a return air control method according to an embodiment of the present invention. Figure 2 As shown, the return air control method includes:

[0048] S101, adjusting the return air position of the air conditioning equipment and the vertical return air direction of the air outlet according to the operation mode of the air conditioning equipment.

[0049] The above-mentioned operating modes include cooling mode and heating mode. In cooling mode, the outlet air temperature is lower than the indoor temperature, and in heating mode, the outlet air temperature is higher than the indoor temperature. Due to the different flow characteristics of hot air and cold air, it is necessary to control the air outlet at different positions in different operating modes, and accordingly, it is necessary to control the air return at different positions.

[0050] S102, adjusting the horizontal return air direction of the air outlet according to the air outlet direction of the air conditioning equipment.

[0051] In the indoor space, if the return air flow and the outlet air flow are in the same vertical area, no pressure difference will be generated in the area, which is not conducive to air circulation. Therefore, it is necessary to adjust the horizontal return air direction of the air outlet according to the outlet direction so that the airflow out of the air outlet and the airflow about to enter the air outlet are distributed in different areas, so as to form a pressure difference in the indoor space and accelerate air circulation.

[0052] The return air control method of the present embodiment adjusts the return air position of the air-conditioning equipment and the vertical return air direction of the air outlet according to the operating mode of the air-conditioning equipment; and adjusts the horizontal return air direction of the air outlet according to the air outlet direction of the air-conditioning equipment. It is possible to adjust the return air position according to the operating mode, and adjust the return air direction according to the operating mode and the air outlet direction, so that the return air direction avoids the air outlet air flow direction, forms a pressure difference in the indoor space, accelerates the air flow in the space, and further achieves rapid temperature equalization and improves comfort.

[0053] Example 2

[0054] This embodiment provides another return air control method. In order to increase the air circulation speed in the cooling mode, in the cooling mode, the return air of the second air outlet of the air-conditioning equipment is controlled, and the vertical return air direction of the second air outlet is controlled to point to the lower space of the room.

[0055] Figure 3 FIG. 4 is a schematic diagram of the return air control principle in the cooling mode according to an embodiment of the present invention. Figure 3 As shown, the indoor space is divided into the upper indoor space and the lower indoor space. Figure 3 The side view of the indoor space is shown in FIG. 1 , which can be controlled by controlling the acute angle between the vertical return air direction of the return air outlet (the second air outlet in this case) and the horizontal plane to be less than the first preset threshold value θ 1 , to ensure that the vertical return air direction of the return air outlet points to the lower space of the room; in this embodiment, the first preset threshold value θ 1 It is related to the size of the indoor space and the size of the division between the upper space and the lower space, mainly to the height h1 of the lower space, and also to the distance h2 between the position of the return air outlet and the ground and the width d of the indoor space. Since the size of the return air outlet is much smaller than that of the entire indoor space, the return air outlet can be simplified as a point. The first preset threshold value θ 1 Approximately equal to arctan[(h1-h2) / d]. When the return air outlet is set on the ground, h2 is approximately 0, θ 1 is approximately equal to arctan(h1 / d). In specific implementation, it can be obtained through experiments that the acute angle formed by the vertical return air direction of the return air outlet and the horizontal plane is equal to the first preset threshold value θ 1 When , the angle at which the air guide plate of the return air outlet deflects up and down is used as the limit value of the angle at which the air guide plate deflects up and down.

[0056] Similarly, in order to increase the air circulation speed in the heating mode, in the heating mode, the return air from the first air vent of the air-conditioning device is controlled, and the vertical return air direction of the first air vent is controlled to point to the upper space of the room.

[0057] Figure 4FIG. 4 is a schematic diagram of the return air control principle in the heating mode according to an embodiment of the present invention. Figure 4 As shown, the acute angle formed by the vertical return air direction of the return air outlet (the first air outlet in this case) and the horizontal plane can be controlled to be smaller than the second preset threshold value θ 2 , to ensure that the vertical return air direction of the return air outlet points to the upper space of the room; in this embodiment, the second preset threshold value θ 2 It is related to the size of the indoor space and the size of the division between the upper space and the lower space, mainly to the height h3 of the upper space, and also to the distance h4 between the position of the return air outlet and the ceiling and the width d of the indoor space. Since the size of the return air outlet is much smaller than that of the entire indoor space, the return air outlet can be simplified as a point. The second preset threshold θ 2 Approximately equal to arctan[(h3-h4) / d]. When the return air outlet is set near the ceiling, h4 is approximately 0, θ 2 In specific implementation, it can be obtained through experiments that the acute angle formed by the vertical return air direction of the return air outlet and the horizontal plane is equal to the second preset threshold value θ 2 When , the angle of the upward deflection of the air guide plate at the return air outlet is used as the limit value of the upward deflection angle of the air guide plate.

[0058] The above scheme controls the vertical return air direction of the return air outlet, that is, controls the deflection angle of the air guide plate in the vertical direction. In actual applications, in order to stagger the return air flow and the outlet air flow, the air guide plate can also be deflected in the horizontal direction. In order to control the horizontal deflection angle of the air guide plate, the above method also includes: adjusting the horizontal return air direction of the air outlet according to the air outlet direction of the air-conditioning equipment, specifically including: adjusting the horizontal return air direction of the air outlet to avoid the air outlet direction.

[0059] Figure 5 is a control principle diagram of the horizontal air outlet direction according to an embodiment of the present invention, such as Figure 5 As shown, taking the cooling mode as an example, in the cooling mode, the first air outlet discharges air and the second air outlet returns air. If the air outlet direction points to the first space, the horizontal return air direction of the air outlet is controlled to point to the second space to ensure that the horizontal return air direction avoids the air outlet direction.

[0060] Figure 6 is a control principle diagram of the horizontal air outlet direction according to another embodiment of the present invention, as shown in Figure 6As shown, if the outlet direction points to the second space, the horizontal return air direction of the air outlet is controlled to point to the first space; wherein the first space and the second space are two different spaces divided by a virtual plane perpendicular to the horizontal plane into which the indoor space is divided. Through the above scheme, the direction of the return air flow and the outlet air flow can be staggered, so that a pressure difference is generated in the indoor space, further improving the speed of air circulation in the indoor space.

[0061] In heating mode, the method of controlling the horizontal air outlet direction is the same as that in cooling mode. The only difference is that the air outlets for air outlet and return air are different, which will not be repeated here.

[0062] Example 3

[0063] As mentioned above Figure 1 As shown in , the main return air area of ​​conventional air-conditioning equipment is the same as the main outlet air area, and its comfort control is basically centered around the outlet air. The return air generally only adjusts the return air outlet wind speed to ensure normal return air, and no other operations are performed. This may cause the following problems: if the main return air area is the same as the main outlet air area, then the entire air circulation is actually carried out around this area, and the surrounding areas can only rely on slow air circulation to ultimately achieve space temperature balance, which takes a relatively long time.

[0064] In order to solve the above problems, this embodiment provides a return air control method, which specifically includes:

[0065] A1, when the unit is in cooling mode, the first air outlet is the air outlet and the second air outlet is the return air outlet.

[0066] In cooling mode, the cold air discharged from the air outlet will sink, so the first air outlet set in the upper space of the room is controlled to discharge air, so that the discharged cold air sinks to the lower space of the room to form air flow, and the second air outlet is controlled to return air at the same time. Users can choose to control the air guide plate of the air outlet to swing up and down and left and right within a certain range according to their current area and whether they need to blow air directly, or control the air guide plate to be fixed so that the air outlet can deliver air at a fixed angle.

[0067] A2, adjust the angles of the upper and lower air sweeping guide plates of the second air outlet to adjust the return air direction to face the lower space of the room.

[0068] When the unit is in cooling mode, the first air outlet blows out air, so the temperature of the upper indoor space will be relatively low, and the temperature of the lower indoor space will be higher. Therefore, controlling the return air direction to face the lower indoor space can accelerate the air flow between the upper and lower indoor spaces. As mentioned above Figure 3As shown in , the downward facing area means that the return air guide plate is adjusted to be horizontal, the return air direction is controlled to be horizontal, or the angle of the guide plate is adjusted so that the angle formed by the return air direction and the horizontal plane is less than θ 1 .

[0069] A3, as mentioned above Figure 5 and Figure 6 As shown in the figure, the indoor space is divided into two spaces, a left space (i.e., the first space in the above embodiment) and a right space (i.e., the second space in the above embodiment) in the left and right directions through an interface. When the left and right wind sweeping angles of the air outlet set by the user face the left space, the left and right wind sweeping guide plates of the return air outlet are adjusted to face the right space. When the left and right wind sweeping angles of the air outlet set by the user face the right space, the left and right wind sweeping guide plates of the return air outlet are adjusted to face the left space.

[0070] B1, when the unit is in heating mode, the second air outlet is the air outlet and the first air outlet is the return air outlet.

[0071] In heating mode, the hot air will rise because of the exhaust of the air outlet. Therefore, the second air outlet set in the lower space of the room is controlled to discharge air so that the exhausted hot air rises to the lower space of the room to form air flow, and the return air of the first air outlet is controlled at the same time. Users can choose to adjust the air guide plate of the air outlet to swing up and down and left and right within a certain range according to their current area and whether they need to blow air directly, or control the air to be delivered at a fixed angle.

[0072] B2, adjust the angles of the upper and lower air sweeping guide plates of the first air outlet to adjust the return air direction to face the upper space of the room.

[0073] When the unit is in heating mode, the second air outlet blows out air, so the temperature of the lower indoor space will be relatively high, and the temperature of the upper indoor space will be relatively low. Therefore, controlling the return air direction to face the upper indoor space can accelerate the air flow between the upper and lower indoor spaces. As mentioned above Figure 4 As shown in , the downward facing area means that the return air guide plate is adjusted to be horizontal, the return air direction is controlled to be horizontal, or the angle of the guide plate is adjusted so that the angle formed by the return air direction and the horizontal plane is less than θ 2 .

[0074] B3, divides the indoor space into two spaces, the left space and the right space, in the left and right directions through an interface. When the left and right sweeping angles of the air outlet set by the user face the left space, the left and right sweeping air guide plates of the return air outlet are adjusted to face the right space. When the left and right sweeping angles of the air outlet set by the user face the right space, the left and right sweeping air guide plates of the return air outlet are adjusted to face the left space.

[0075] Through the above operation, in cooling mode, by adjusting the upper and lower air sweeping guide plates of the return air outlet so that the return air direction faces the lower space of the room, the air flow speed will be accelerated due to the characteristics of cold air sinking; in heating mode, by adjusting the upper and lower air sweeping guide plates of the return air outlet so that the return air direction faces the upper space of the room, the air flow speed will be accelerated due to the characteristics of hot air rising. The control of the left and right air sweeping guide plates of the return air outlet is to form air flow between the left and right spaces. Ultimately, the temperature balance of the entire space is accelerated.

[0076] Example 4

[0077] This embodiment provides a return air control device for implementing the return air control method in the above embodiment. Figure 7 is a structural diagram of a return air control device according to an embodiment of the present invention, as shown in Figure 7 As shown, the device comprises:

[0078] A first control module 10, used to adjust the return air position of the air conditioner and the vertical return air direction of the air outlet according to the operation mode of the air conditioner;

[0079] The second control module 20 is used to adjust the horizontal return air direction of the air outlet according to the air outlet direction of the air conditioning equipment.

[0080] The return air control device of this embodiment adjusts the return air position of the air-conditioning equipment and the vertical return air direction of the air outlet according to the operating mode of the air-conditioning equipment through the first control module 10; adjusts the horizontal return air direction of the air outlet according to the air outlet direction of the air-conditioning equipment through the second control module 20. It is possible to adjust the return air position according to the operating mode, and adjust the return air direction according to the operating mode and the air outlet direction, so that the return air direction avoids the air outlet airflow direction, forms a pressure difference in the indoor space, accelerates the air flow in the space, and further achieves rapid temperature equalization and improves comfort.

[0081] Example 5

[0082] This embodiment provides another return air control device. Figure 8 FIG. 1 is a structural diagram of a return air control device according to another embodiment of the present invention, in order to accelerate the indoor air circulation flow in the cooling mode and the heating mode respectively. Figure 8 As shown, based on the above embodiment, the first control module 10 further includes:

[0083] The first control unit 101 is used to control the return air from the second air outlet of the air-conditioning equipment in the cooling mode, and to control the vertical return air direction of the second air outlet to point to the lower indoor space; in order to ensure that the vertical return air direction of the second air outlet points to the lower indoor space, the first control unit 101 is specifically used to control the acute angle formed by the vertical return air direction of the second air outlet and the horizontal plane to be smaller than a first preset threshold value, so that the vertical return air direction of the second air outlet points to the lower indoor space.

[0084] The second control unit 102 is further included, which is used to control the return air of the first air outlet of the air conditioning device in the heating mode, and control the vertical return air direction of the first air outlet to point to the upper space of the room. In order to ensure that the vertical return air direction of the first air outlet points to the upper space of the room, the second control unit 102 is specifically used to control the acute angle formed by the vertical return air direction of the second air outlet and the horizontal plane to be less than a first preset threshold value, so that the vertical return air direction of the second air outlet points to the lower space of the room.

[0085] The above scheme controls the vertical return air direction of the return air outlet, that is, controls the deflection angle of the air guide plate in the vertical direction. In practical applications, in order to stagger the return air flow and the outlet air flow, the second control module 20 is used to adjust the horizontal return air direction of the air outlet to avoid the outlet direction. Specifically, the second control module 20 includes a third control unit 201, which is used to control the horizontal return air direction of the air outlet to point to the second space when the outlet direction points to the first space; the fourth control unit 202 is used to control the horizontal return air direction of the air outlet to point to the first space when the outlet direction points to the second space; wherein the first space and the second space are two different spaces divided by a virtual plane perpendicular to the horizontal plane into which the indoor space is divided. Through the above scheme, the direction of the return air flow and the outlet air flow can be staggered, so that a pressure difference is generated in the indoor space, and the speed of air circulation in the indoor space is further increased.

[0086] Example 6

[0087] The present embodiment provides an air-conditioning device, comprising at least two air outlets, and also comprising the return air control device in the above embodiment, which is used to control the vertical return air direction and the horizontal return air direction of the return air outlet, so that the return air direction avoids the air flow direction, thereby forming a pressure difference in the space, accelerating the air flow in the space, and thereby achieving rapid temperature equalization and improving comfort.

[0088] Example 7

[0089] This embodiment provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the above-mentioned return air control method is implemented.

[0090] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0091] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0092] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A return air control method, characterized in that: The method is applied to an air conditioning device having at least two air outlets, wherein the at least two air outlets include a first air outlet and a second air outlet, wherein the first air outlet is arranged in an upper indoor space, and the second air outlet is arranged in a lower indoor space, and the method includes: Adjusting the return air position and the vertical return air direction of the air outlet of the air conditioning device according to the operation mode of the air conditioning device; including: in the cooling mode, controlling the return air of the second air outlet of the air conditioning device, and controlling the vertical return air direction of the second air outlet to point to the lower space of the room, specifically including: controlling the acute angle formed by the vertical return air direction of the second air outlet and the horizontal plane to be less than a first preset threshold value, so that the vertical return air direction of the second air outlet points to the lower space of the room; Adjust the horizontal return air direction of the air outlet according to the air outlet direction of the air conditioning equipment.

2. The method according to claim 1, characterized in that Adjusting the return air position of the air conditioner and the vertical return air direction of the air outlet according to the operation mode of the air conditioner, further comprising: In the heating mode, the first air outlet of the air conditioning device is controlled to return air, and the vertical return air direction of the first air outlet is controlled to point to the upper space of the room.

3. The method according to claim 2, characterized in that In the heating mode, controlling the first air outlet of the air conditioning device to return air, and controlling the vertical return air direction of the first air outlet to point to the upper space of the room, comprises: The acute angle formed by the vertical return air direction of the first air outlet and the horizontal plane is controlled to be smaller than a second preset threshold value, so that the vertical return air direction of the first air outlet points to the upper space of the room.

4. The method according to claim 1, characterized in that: Adjust the horizontal return air direction of the air outlet according to the air outlet direction of the air conditioning equipment, including: Adjust the horizontal return air direction of the air outlet to avoid the air outlet direction.

5. The method according to claim 4, characterized in that Adjusting the horizontal return air direction of the air outlet to avoid the air outlet direction includes: If the air outlet direction is directed toward the first space, the horizontal air return direction of the air outlet is controlled to be directed toward the second space; If the air outlet direction is directed toward the second space, the horizontal air return direction of the air outlet is controlled to be directed toward the first space; The first space and the second space are two different spaces formed by dividing the indoor space by a virtual plane perpendicular to the horizontal plane.

6. A return air control device for implementing the return air control method according to any one of claims 1 to 5, characterized in that: The device comprises: The first control module is used to adjust the return air position of the air conditioner and the vertical return air direction of the air outlet according to the operation mode of the air conditioner; including: in the cooling mode, controlling the return air of the second air outlet of the air conditioner, and controlling the vertical return air direction of the second air outlet to point to the lower space of the room, specifically including: controlling the acute angle formed by the vertical return air direction of the second air outlet and the horizontal plane to be less than a first preset threshold value, so that the vertical return air direction of the second air outlet points to the lower space of the room; The second control module is used to adjust the horizontal return air direction of the air outlet according to the air outlet direction of the air conditioning equipment.

7. The device according to claim 6, characterized in that The first control module comprises: A first control unit is used to control the return air of the second air outlet of the air conditioning device in the cooling mode, and control the vertical return air direction of the second air outlet to point to the lower space of the room; The second control unit is used to control the return air of the first air outlet of the air-conditioning equipment in the heating mode, and control the vertical return air direction of the first air outlet to point to the upper space of the room.

8. An air conditioning device, characterized in that: Includes the return air control device as described in claim 6 or 7.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the return air control method according to any one of claims 1 to 5 is implemented.

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