Air conditioner and control method therefor

Abstract

Provided are an air conditioner and a control method therefor. The air conditioner comprises: a main body (100), internally provided with an air duct (110), the air duct (110) having an air inlet (111), a front air outlet (112) and a lower air outlet (113), the front air outlet (112) being located on the front side wall of the main body (100), and the lower air outlet (113) being located at the front portion of the lower side wall of the main body (100); and a plurality of switch doors, which are sequentially arranged in the up-down direction and are all swingably arranged at the front air outlet (112), wherein the plurality of switch doors are configured to be able to jointly close the front air outlet (112), the lowermost switch door is configured to be able to close the lower air outlet (113), and on the basis of the plurality of switch doors jointly closing the front air outlet (112), the lower air outlet (113) is in an open state.

Description

An air conditioner and its control method

[0001] This application claims priority to Chinese patent applications filed on October 31, 2024, with application number 2024115497275 entitled "An Air Conditioner and a Control Method Thereof", 2024115498244 entitled "An Air Conditioner and a Control Method Thereof", 2024226622503 entitled "An Air Conditioner", 2024226622166 entitled "An Air Conditioner", and 2024115497082 entitled "A Control Method Thereof", the contents of which are to be construed as incorporated herein by reference. Technical Field

[0002] This application relates to, but is not limited to, air conditioning equipment technology, specifically referring to an air conditioner and its control method. Background Technology

[0003] Ductless air conditioners are typically installed in ceiling-mounted units with side-discharge airflow. The air outlet is paired with an engineering panel to diffuse the airflow and achieve cooling or heating functions. However, when heating, the hot air from a side-discharge ductless air conditioner cannot reach the floor. Even if the air guide grille is tilted downwards at its maximum angle, hot air cannot be delivered directly below the duct unit, resulting in problems such as a large blind spot in airflow, large temperature differences between different areas of the room, and poor heating performance. Summary of the Invention

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

[0005] The air conditioner provided in this application embodiment includes: a main body having an internal air duct, the air duct having an air inlet, a front air outlet, and a lower air outlet, the front air outlet being located on the front side wall of the main body, and the lower air outlet being located on the front part of the lower side wall of the main body; and a plurality of switch doors arranged sequentially in the vertical direction and each of them being swingably disposed at the front air outlet, the plurality of switch doors being configured to be able to jointly close the front air outlet, the lowermost switch door being configured to be able to close the lower air outlet, and the lower air outlet being in an open state when the plurality of switch doors jointly close the front air outlet.

[0006] The air conditioner control method provided in this application includes:

[0007] Obtain the air outlet command from the air conditioner;

[0008] Based on the fact that the air outlet command is the second air outlet command, multiple of the opening and closing doors are controlled to jointly close the front air outlet;

[0009] Based on the fact that the air outlet command is the first air outlet command, the switch door located at the bottom is controlled to close the lower air outlet.

[0010] The air conditioner control method provided in this application includes:

[0011] Obtain the operating mode of the air conditioner and obtain the air outlet command issued by the user;

[0012] Based on the operating mode being heating mode and the user issuing an airflow command to the air conditioner, then:

[0013] Based on the fact that the air outlet command is the second air outlet command, multiple of the opening and closing doors are controlled to jointly close the front air outlet;

[0014] Based on the fact that the air outlet command is the first air outlet command, the switch door located at the bottom is controlled to close the lower air outlet.

[0015] The air conditioner control method provided in this application includes:

[0016] Obtain the operating mode of the air conditioner and obtain the air outlet command issued by the user;

[0017] Based on the operating mode being cooling mode and the user issuing an airflow command to the air conditioner, then:

[0018] Based on the fact that the air outlet command is the second air outlet command, multiple of the switch doors are controlled to close the front air outlet together, and after a set time, the switch door located at the bottom is controlled to close the lower air outlet.

[0019] Based on the fact that the air outlet command is the first air outlet command, the switch door located at the bottom is controlled to close the lower air outlet.

[0020] The air conditioner control method provided in this application includes:

[0021] Obtain the operating mode of the air conditioner and obtain the air outlet command issued by the user;

[0022] If the operating mode is cooling mode and no air outlet command is received from the user, then multiple doors are controlled to close the front air outlet together, and after a set time, the bottom door is controlled to close the lower air outlet.

[0023] Other features and advantages of this application will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the application. Other advantages of this application can be realized and obtained by means of the solutions described in the description and the accompanying drawings.

[0024] After reading and understanding the accompanying diagrams and detailed descriptions, the other aspects can be understood.

[0025] Overview of the attached figures

[0026] Figure 1 is a cross-sectional structural diagram of an air conditioner provided in some embodiments of this application, in which the lower air outlet is opened and the front air outlet is closed.

[0027] Figure 2 is a cross-sectional structural diagram of an air conditioner provided in some other embodiments of this application, in which the lower air outlet is opened and the front air outlet is closed.

[0028] Figure 3 is a cross-sectional structural diagram of an air conditioner provided in some embodiments of this application, with the front air outlet open and the lower air outlet closed.

[0029] Figure 4 is a cross-sectional structural diagram of an air conditioner provided in some other embodiments of this application, in which the front air outlet is opened and the lower air outlet is closed.

[0030] Figure 5 is a cross-sectional view of an installation scheme for a first switch door and a second switch door, with the first switch door in the first position and the second switch door in the fifth position.

[0031] Figure 6 is a cross-sectional view of another installation scheme for the first and second switching doors, with the first switching door in the first position and the second switching door in the third position.

[0032] Figure 7 is another cross-sectional view of the structure shown in Figure 6, with the first door in the first position and the second door in the fifth position.

[0033] Figure 8 is a cross-sectional structural diagram of an air conditioner provided in some embodiments of this application, in which the lower air outlet is opened and the front air outlet is closed.

[0034] Figure 9 is a cross-sectional view of the air conditioner shown in Figure 8, with the front air outlet open and the lower air outlet closed.

[0035] Figure 10 is a cross-sectional view of the air conditioner shown in Figure 8, with the front air outlet and the lower air outlet open.

[0036] Figure 11 is a schematic diagram of the structure at the first annular mating surface;

[0037] Figure 12 is a schematic diagram of the structure at the second annular mating surface;

[0038] Figure 13 is a cross-sectional view of an air conditioner installed in a suspended ceiling according to some embodiments of this application;

[0039] Figure 14 is a flowchart of an air conditioner control method provided in some embodiments of this application;

[0040] Figure 15 is a flowchart of an air conditioner control method provided in some other embodiments of this application;

[0041] Figure 16 is a flowchart of an air conditioner control method provided in some embodiments of this application;

[0042] Figure 17 is a flowchart of an air conditioner control method provided in some embodiments of this application.

[0043] The correspondence between the reference numerals and component names in the attached drawings is as follows: 100 Main body, 110 Air duct, 111 Air inlet, 112 Front air outlet, 113 Lower air outlet, 114 First annular mating surface, 115 Second annular mating surface, 116 Protrusion, 117 Air guide surface, 1171 Second hinge, 118 First hinge, 119 First hinge, 200 First opening and closing door, 210 First hinge mating part, 220 First hinge mating part, 300 Second opening and closing door, 310 Second hinge mating part, 400 Fan, 500 Heat exchanger, 600 Engineering panel, 700 Opening and closing door.

[0044] Detailed Explanation

[0045] The principles and features of this application are described below with reference to the accompanying drawings. The examples given are only for explaining this application and are not intended to limit the scope of this application.

[0046] This application includes and contemplates combinations of features and elements known to those skilled in the art. The embodiments, features, and elements disclosed in this application may also be combined with any conventional features or elements to form a unique disclosure. Any feature or element of any embodiment may also be combined with features or elements from other disclosures to form another unique disclosure. Therefore, it should be understood that any feature shown and / or discussed in this application may be implemented individually or in any suitable combination. Therefore, the embodiments are not limited except by the limitations imposed by the appended claims and their equivalents. Furthermore, various modifications and changes may be made within the scope of the appended claims.

[0047] Furthermore, in describing representative embodiments, the specification may have presented methods and / or processes as a specific sequence of steps. However, the method or process should not be limited to the specific order of steps described herein, to the extent that it does not depend on such a specific order. As will be understood by those skilled in the art, other sequences of steps are also possible. Therefore, the specific order of steps set forth in the specification should not be construed as a limitation of the claims. Moreover, the claims concerning the method and / or process should not be limited to the steps performed in the written order, and those skilled in the art will readily understand that these orders can be varied and still remain within the spirit and scope of the embodiments of this application.

[0048] The air conditioner provided in this application embodiment, as shown in Figures 8 to 13, includes: a main body 100, the interior of which has an air duct 110, the air duct 110 having an air inlet 111, a front air outlet 112 and a lower air outlet 113, the front air outlet 112 being located on the front side wall of the main body 100, and the lower air outlet 113 being located on the front part of the lower side wall of the main body 100; and multiple switch doors 700, arranged sequentially in the vertical direction and all of which are swayably located at the front air outlet 112, the multiple switch doors 700 being configured to be able to close the front air outlet 112 together, the switch door 700 located at the bottom being configured to be able to close the lower air outlet 113, and the lower air outlet 113 being in an open state when the multiple switch doors 700 are used to close the front air outlet 112 together.

[0049] When multiple doors 700 simultaneously close the front air outlet 112, the lower air outlet 113 is in the open state, allowing air to blow directly downwards from the lower air outlet 113 towards the main body 100. Since multiple doors 700 simultaneously close the front air outlet 112, condensation will not occur at the front air outlet 112. When the lowest door 700 closes the lower air outlet 113, the front air outlet 112 is at least partially open, allowing air to blow from the front. The air outlet 112 blows air towards the front of the main body 100, and the bottom door 700 closes the lower air outlet 113, so that condensation will not occur at the lower air outlet 113. That is, the air conditioner, together with the engineering panel, can deliver hot air and cold air downwards, and can also deliver hot air and cold air forwards. This can reduce the blind spot of air delivery, reduce the temperature difference between different areas of the room, and improve the user's comfort when blowing hot air, resulting in a better user experience.

[0050] In some examples, at least two doors 700 are configured to open the front air outlet 112 together. Based on the fact that at least two doors 700 open the front air outlet 112 together, the bottommost door 700 is also configured to open and close the lower air outlet 113. That is, based on the fact that at least two doors 700 (which may include the bottommost door 700; or at least two doors 700 may exclude the bottommost door 700) open the front air outlet 112 together, the bottommost door 700 may open the lower air outlet 113, or the bottommost door 700 may close the lower air outlet 113.

[0051] In some examples, as shown in Figures 8 to 12, the wall of the front air outlet 112 has a first annular mating surface 114 facing the interior of the air duct, and the wall of the lower air outlet 113 has a second annular mating surface 115 facing the interior of the air duct. Multiple switch doors 700 are located on the side of the first annular mating surface 114 facing the interior of the air duct. Since the multiple switch doors 700 collectively close the front air outlet 112, the adjacent ends of adjacent switch doors 700 are sealed together, and the other ends of the multiple switch doors 700 are sealed together with the first annular mating surface 114. This scheme can achieve complete closure of the front air outlet 112 by the multiple switch doors 700. Similarly, since the lowermost switch door 700 closes the lower air outlet 113, each end of the lowermost switch door 700 is sealed together with the second annular mating surface 115. This scheme can achieve complete closure of the lower air outlet 113 by the lowermost switch door 700.

[0052] In some examples, as shown in Figures 1 to 7 and Figures 11 to 13, multiple switch doors 700 include a first switch door 200 and a second switch door 300. The first switch door 200 is located above the second switch door 300 and can be swayed at the front air outlet 112. The first switch door 200 has a first position and a second position, and the second switch door 300 has a third position and a fourth position. As shown in Figures 1 and 2, when the first switch door 200 is in the second position and the second switch door 300 is in the fourth position, the second switch door 300 opens the lower air outlet 113 and, together with the first switch door 200, closes the front air outlet 112. As shown in Figures 3, 4, and 6, when the first switch door 200 is in the first position and the second switch door 300 is in the third position, the second switch door 300 closes the lower air outlet 113 and, together with the first switch door 200, opens the front air outlet 112.

[0053] When the first switch door 200 is in the second position and the second switch door 300 is in the fourth position, the second switch door 300 opens the lower air outlet 113 and, together with the first switch door 200, closes the front air outlet 112. At this time, air can blow from the lower air outlet 113 directly downwards from the main body 100, and the second switch door 300 and the first switch door 200 together close the front air outlet 112. This prevents condensation at the front air outlet 112 due to air leakage. When the first switch door 200 is in the first position and the second switch door 300 is in the third position, the second switch door... The second door 300 closes the lower air outlet 113 and, together with the first door 200, opens the front air outlet 112. At this time, air can blow from the front air outlet 112 toward the front of the main body 100. The second door 300 closes the lower air outlet 113, so the second door 300 will not cause condensation at the lower air outlet 113 due to air leakage. That is, the air conditioner, together with the engineering panel 600, can deliver hot and cold air downwards, and can also deliver hot and cold air forwards. This can reduce the blind spot of air delivery, reduce the temperature difference between different areas of the room, and improve the user's comfort when blowing hot air, resulting in a better user experience.

[0054] In some examples, as shown in Figures 5 and 7, the second switch door 300 also has a fifth position. With the first switch door 200 in the first position and the second switch door 300 in the fifth position, the second switch door 300 opens the lower air outlet 113 and, together with the first switch door 200, opens the front air outlet 112. This design allows for simultaneous airflow from both the front air outlet 112 and the lower air outlet 113, thus better reducing blind spots in air supply and temperature differences between different areas of the room, resulting in a better user experience.

[0055] One solution is to install a swingable door between the indoor heat exchanger and the front air outlet. The door can close either the front or the bottom air outlet by switching its position. However, the operation of this door requires a large space in the front-to-back direction, which would require increasing the distance between the indoor heat exchanger and the front air outlet. In other words, the size of the air conditioner in the front-to-back direction needs to be increased. This does not meet the current installation requirements of the popular 450mm air conditioner in the indoor ceiling. In addition, a swing fit gap needs to be reserved between the perimeter of the door and the walls of the front and bottom air outlets. Air leakage at the swing fit gap will cause whistling and condensation problems.

[0056] To address the issue of increased dimensions in the front-to-back direction caused by adding a sliding door inside the air conditioner, one solution is to install a swingable first sliding door inside the front air outlet and a swingable second sliding door inside the lower air outlet. Since a swinging clearance needs to be provided between the periphery of the first sliding door and the inner circumference of the front air outlet, and also between the periphery of the second sliding door and the inner circumference of the lower air outlet, air leakage will cause whistling and condensation at the swinging clearances when the first sliding door closes the front air outlet and the second sliding door opens the lower air outlet. Similarly, when the first sliding door opens the front air outlet and the second sliding door closes the lower air outlet, air leakage will cause whistling and condensation at the swinging clearances between the periphery of the second sliding door and the inner circumference of the lower air outlet.

[0057] In some examples, as shown in Figures 1 to 7, the first switch door 200, the second switch door 300, the first position, the second position, the third position, the fourth position, and the fifth position are all located inside the air duct 110, with the fifth position located between the third and fourth positions. The front air outlet 112 has a larger vertical dimension than the lower air outlet 113 has a larger vertical dimension than the first switch door 200 in the second position. The air duct 110 contains a heat exchanger 500 and a fan 400. The lower air outlet 113 is located between the front air outlet 112 and the heat exchanger 500 in the front-to-back direction, and the fan 400 is located behind the heat exchanger 500. The heat exchanger 500 is configured in a bent shape, such as a V-type, U-type, or C-type heat exchanger.

[0058] In some examples, the heat exchanger 500 is configured as a V-shaped heat exchanger, with the lower part of the V-shaped heat exchanger tilting forward from bottom to top, and the upper part tilting backward from bottom to top. This V-shaped heat exchanger can simultaneously avoid the swing trajectories of the first switch door 200 and the second switch door 300. This design, while ensuring unchanged air conditioner operating performance, places the first switch door 200 and the second switch door 300 on the side of the heat exchanger 500 facing the front air outlet 112. It does not require increasing the distance between the heat exchanger 500 and the front air outlet 112, and the operation of the first switch door 200 and the second switch door 300 is not interfered with by the heat exchanger 500. The dimensions of the air conditioner in the front-to-back direction do not need to be increased, satisfying an air conditioner layout with a front-to-back dimension of 450mm.

[0059] In some examples, as shown in Figures 1 to 4, 11 and 12, the wall of the front air outlet 112 has a first annular mating surface 114 facing the interior of the air duct 110, and the wall of the lower air outlet 113 has a second annular mating surface 115 facing the interior of the air duct 110. The first switch door 200 and the second switch door 300 are both located on the side of the first annular mating surface 114 and the second annular mating surface 115 facing the interior of the air duct. With the first switch door 200 in the second position and the second switch door 300 in the fourth position, the adjacent ends of the first switch door 200 and the second switch door 300 are sealed and abutted together, and the other ends of the first switch door 200 and the second switch door 300 are sealed and abutted together with the first annular mating surface 114, so that the first switch door 200 and the second switch door 300 jointly close the front air outlet 112. In this way, during the air outlet 113, the walls of the first switch door 200, the second switch door 300 and the front air outlet 112 will not produce whistling or condensation due to air leakage. Furthermore, since air only exits from the lower air outlet 113, the overlapping joints of the first and second doors 200 and 300 are pressed tightly by the air pressure generated by the airflow inside the air duct 110, and the peripheries of the first and second doors 200 and 300 are pressed tightly against the first annular mating surface 250. This improves the sealing effect of the first and second doors 200 and 300 on the front air outlet 112. Based on the first door 200 being in the first position and the second door 300 being in the third position, each end of the second door 300 is sealed against the second annular mating surface 115, thus sealing the lower air outlet 113. Therefore, during airflow from the front air outlet 112, no whistling or condensation will occur between the second door 300 and the walls of the lower air outlet 113 due to air leakage. Moreover, when air is only discharged from the front air outlet 112, the air is pressed against the second annular mating surface 260 by the air pressure formed by the air jet blown by the second switch door 300 inside the air duct 110. This makes the second switch door 300 more effective at closing the lower air outlet 113.

[0060] The adjacent portions of the first annular mating surface 114 and the second annular mating surface 115 are smoothly connected to form a concave cylindrical curved surface. As shown in Figures 2 and 7, the rear part of the opening wall of the lower air outlet 113 forms a protrusion 116 inside the air duct 100. The second annular mating surface 115 includes the upper end face of the protrusion 116, and the rear side of the protrusion 116 is a guide curved surface 117, which extends upward and inclined from back to front. The dimension of the protrusion 116 in the vertical direction is 15mm to 30mm, and the dimension of the lower air outlet 113 in the front-back direction is 40mm to 80mm. Alternatively, as shown in Figures 1 to 13, the upper part of the rear inner side of the lower air outlet 113 is an arc-shaped surface extending from top to bottom and forward. The dimension of the upper end of the lower air outlet 113 in the front-back direction is W2, and the dimension of the lower end of the lower air outlet 113 in the front-back direction is W1, where W1 is 40mm to 70mm and W2 = W1 + 5mm. When cold air is emitted from the lower air outlet 113, the air guide surface 117 and the arc-shaped surface can guide the cold air to completely fill the lower air outlet 113, preventing outside air from flowing back into the air duct 100 from the rear part of the opening wall inside the lower air outlet 113, thereby causing condensation to occur at the rear part of the opening wall of the lower air outlet 113.

[0061] In some examples, as shown in Figures 5 and 7, a second hinge portion 1171 is provided at the lower part of the first annular mating surface 114, and a second hinge mating portion 310 is provided at one end of the second switch door 300 adjacent to the lower part of the first annular mating surface 114. The second hinge portion 1171 and the second hinge mating portion 310 are hingedly connected, so that the second switch door 300 can be swayed and positioned at the front air outlet 112. Based on the second switch door 300 being in the fourth position, the lower end of the second switch door 300 is sealed and abuts against the lower part of the first annular mating surface 114, and the upper end of the second switch door 300 is sealed and abuts against the lower end of the first switch door 200 in the second position. That is, the adjacent ends of the second switch door 300 and the first switch door 200 overlap and seal, and the periphery of the combined structure of the first switch door 200 and the second switch door 300 is sealed and abuts against the first annular mating surface 114 to jointly close the front air outlet 112. Since the second switch door 300 is in the third position, the end of the second switch door 300 away from the second hinge mating part 310 is sealed and abutted against the front part of the second annular mating surface 115, and the rear end of the second switch door 300 is sealed and abutted against the rear part of the second annular mating surface 115. That is, the periphery of the second switch door 300 is sealed and abutted against the second annular mating surface 115, thus closing the lower air outlet 113. In order to prevent air leakage between the lower end of the second switch door 300 and the lower wall of the front air outlet 112, a sealing sponge is provided between the lower end of the second switch door 300 and the lower wall of the front air outlet 112 for sealing.

[0062] In some examples, as shown in Figures 4 and 5, the upper part of the first annular mating surface 114 is provided with a first hinge portion 118, and one end of the first switch door 200 adjacent to the upper part of the first annular mating surface 114 is provided with a first hinge mating portion 210. The first hinge portion 118 and the first hinge mating portion 210 are hingedly connected. Based on the first switch door 200 being in the second position, the upper end of the first switch door 200 is sealed and abuts against the upper part of the first annular mating surface 114, and the lower end of the first switch door 200 is sealed and abuts against the upper end of the second switch door 300 being in the fourth position. That is, the adjacent ends of the second switch door 300 and the first switch door 200 overlap and seal (a sealing sponge can be added here to improve the sealing effect when overlapping). The periphery of the combined structure of the first switch door 200 and the second switch door 300 is sealed and abuts against the first annular mating surface 114 to jointly seal the front air outlet 112. With the first switch door 200 in the first position, the front end of the first switch door 200 away from the first hinged engagement part 210 abuts against the upper side wall of the air duct 110 within the air duct 110, and the side of the first switch door 200 facing the upper side wall of the air duct 110 is in close contact with the upper side wall of the air duct 110. To prevent air leakage between the upper end of the first switch door 200 and the upper wall of the front air outlet 112, a sealing sponge is provided between the upper end of the first switch door 200 and the upper wall of the front air outlet 112 for sealing.

[0063] In other examples, as shown in Figures 6 and 7, a first hinge portion 119 is provided between the upper and lower portions of the first annular mating surface 114, and a first hinged mating portion 220 is provided at one end of the first switch door 200 away from the upper portion of the first annular mating surface 114. The first hinge portion 119 and the first hinged mating portion 220 are hingedly connected. Since the first switch door 200 is in the second position, the lower end of the first hinged mating portion 220 of the first switch door 200 is sealed against the upper end of the second switch door 300 in the fourth position. The upper end of the first switch door 200 is sealed against the upper portion of the first annular mating surface 114. That is, the adjacent ends of the second switch door 300 and the first switch door 200 overlap and seal. The periphery of the combined structure of the first switch door 200 and the second switch door 300 is sealed against the first annular mating surface 114, thus jointly sealing the front air outlet 112. Based on the first switch door 200 being in the first position and the second switch door 300 being in the third or fifth position, the other end (i.e. the front end) of the first switch door 200 is spaced apart from the upper part and the lower part of the first annular mating surface 114 within the air duct 110. At this time, the air stream blown out from the front air outlet 112 is blown out from both the upper and lower sides of the first switch door 200. In this process, the first switch door 200 also has a guiding effect on the blown air stream.

[0064] In some examples, as shown in Figure 5, the vertical dimension A of the front air outlet 112 is 80mm to 150mm, the horizontal dimension B of the lower air outlet 113 is 40mm to 80mm, the vertical dimension C of the second switch door 300 in the fourth position is 35mm to 110mm, the vertical dimension D of the first switch door 200 in the second position is 30mm to 80mm, and the horizontal dimension E between the heat exchanger 500 and the lower air outlet 113 is no greater than 30mm. In this configuration, the lower air outlet 113 will not experience air backflow and condensation during the cold air output process. If the horizontal dimension of the lower air outlet 113 is too large, air backflow and condensation will occur during the cold air output process. If the horizontal dimension of the lower air outlet 113 is too small, the air output effect of the lower air outlet 113 will be poor.

[0065] It can be as shown in Figures 1 and 3, where the air inlet 111 is located at the rear of the lower side wall of the main body 100; or it can be as shown in Figures 2 and 4, where the air inlet 111 is located at the rear side wall of the main body 100, etc.; all of the above can achieve the purpose of this application, and their purpose has not deviated from the design concept of this disclosure, so they will not be repeated here, and all should fall within the protection scope of this application.

[0066] The air conditioner control method provided in this disclosure includes:

[0067] Obtain the airflow command from the air conditioner;

[0068] Based on the air outlet command being the second air outlet command, multiple doors are controlled to jointly close the front air outlet 112.

[0069] Based on the air outlet command being the first air outlet command, the bottommost door is controlled to close the lower air outlet 113.

[0070] When multiple doors jointly close the front air outlet 112, the lower air outlet 113 is in the open state. At this time, air can blow from the lower air outlet 113 directly downwards from the main body 100. Since multiple doors jointly close the front air outlet 112, condensation will not occur at the front air outlet 112. When the bottommost door closes the lower air outlet 113, the front air outlet 112 is at least partially open. At this time, air can blow from the front air outlet 112 towards the front of the main body 100. Since the bottommost door closes the lower air outlet 113, condensation will not occur at the bottommost door. In other words, this air conditioner, in conjunction with the engineering panel, can deliver hot and cold air downwards, as well as hot and cold air forwards. This reduces blind spots in air delivery, minimizes temperature differences between different areas of the room, and improves the user's comfort when receiving hot air, resulting in a better user experience.

[0071] In some examples, based on the air outlet command as the first air outlet command, at least one other switch door is also controlled to open the front air outlet 112, so that the front air outlet 112 can better dissipate air.

[0072] In some examples, as shown in Figure 14, the step of controlling at least one other switch door to open the front air vent 112 includes controlling the first switch door 200 to swing to a first position.

[0073] In some examples, as shown in Figure 14, the steps of controlling multiple doors to jointly close the front air outlet 112 include: controlling the first door 200 to swing to the second position, and controlling the second door 300 to swing to the fourth position. As shown in Figure 14, the steps of controlling the bottommost door to close the lower air outlet 113 include: controlling the second door 300 to swing to the third position.

[0074] This air conditioner controls the first door 200 to swing to the second position and the second door 300 to swing to the fourth position, so that the second door 300 opens the lower air outlet 113 and, together with the first door 200, closes the front air outlet 112. In this case, it can be used in heating mode to blow hot air into the room from the lower air outlet 113, so that the hot air can quickly reach the ground. Controlling the first door 200 to swing to the first position and controlling the second door 300 to swing to the third position, so that the second door 300 closes the lower air outlet 113 and, together with the first door 200, opens the front air outlet 112. In this case, it can be used in cooling mode to blow cold air into the room from the front air outlet 112, so as to avoid the cold air blowing directly on people.

[0075] In some examples, the control method further includes: based on the air outlet command being the third air outlet command, controlling at least two doors to open the front air outlet 112 together, and controlling the bottommost door to open the lower air outlet 113. It is possible that at least two doors include the bottommost door; or it is possible that at least two doors do not include the bottommost door; both can achieve the purpose of this application, and their intent does not depart from the design concept of this disclosure, and will not be elaborated further here, all of which should fall within the protection scope of this application.

[0076] In some examples, as shown in Figure 14, the steps of controlling at least two switches to open the front air outlet 112 and controlling the bottom switch to open the lower air outlet 113 include: controlling the first switch 200 to swing to the first position and controlling the second switch 300 to swing to the fifth position.

[0077] Control the first switch door 200 to swing to the first position, and control the second switch door 300 to swing to the fifth position, so that the second switch door 300 opens the lower air outlet 113 and, together with the first switch door 200, opens the front air outlet 112, so that air can be discharged from the front air outlet 112 and the lower air outlet 113 at the same time. This can better reduce the air supply blind zone and the temperature difference between different areas of the room, and improve the user experience.

[0078] To prevent condensation from forming on the surface of the second door 300 in the fifth position during cooling, the second door 300 can be controlled to swing back and forth within a small range relative to the fifth position.

[0079] In some examples, based on the air outlet command being the second air outlet command, multiple doors are also controlled to jointly close the front air outlet 112 for a set time, and then the bottommost door is controlled to close the lower air outlet 113.

[0080] In some examples, based on the air outlet command being the second air outlet command, after controlling multiple doors to jointly close the front air outlet 112 for a set time, at least one other door (excluding the bottommost door) is also controlled to open the front air outlet 112.

[0081] In some examples, as shown in Figure 15, controlling the lowermost door to close the lower air outlet 113 includes controlling the second door 300 to swing to a third position. Controlling at least one other door to open the front air outlet 112 includes controlling the first door 200 to swing to a first position.

[0082] That is, after a set time has elapsed between the first switch door 200 being in the second position and the second switch door 300 being in the fourth position, the first switch door 200 is controlled to swing back to the first position, and the second switch door 300 is controlled to swing back to the third position. The set time can be reasonably set as needed, such as 1 minute, 3 minutes, 5 minutes, or 10 minutes, etc., all of which can achieve the purpose of this application. The purpose does not depart from the design concept of this disclosure, and will not be elaborated further here. All of these should fall within the protection scope of this application.

[0083] After a set time has elapsed since the first door 200 is in the second position and the second door 300 is in the fourth position, the first door 200 is controlled to swing back to the first position, and the second door 300 is controlled to swing back to the third position. This closes the lower air outlet 113 and opens the front air outlet 112. In other words, the air conditioner first blows cold air into the room from the lower air outlet 113, allowing the cold air to quickly reach the ground and achieve rapid cooling in the lower part of the room. After a set time, the air conditioner then blows cold air into the room from the front air outlet 112, preventing the cold air from blowing directly on people.

[0084] The air conditioner control method provided in this disclosure includes:

[0085] Obtain the operating mode of the air conditioner and obtain the air outlet command issued by the user;

[0086] Based on the operating mode being heating mode and the user issuing an airflow command to the air conditioner, then:

[0087] Based on the air outlet command being the second air outlet command, multiple doors are controlled to jointly close the front air outlet 112.

[0088] Based on the air outlet command being the first air outlet command, the bottommost door is controlled to close the lower air outlet 113.

[0089] In heating mode, users can choose to have hot air emanating from the bottom air outlet 113 or from the front air outlet 112 as needed.

[0090] In some examples, based on the air outlet command as the first air outlet command, at least one other switch door is also controlled to open the front air outlet 112, so that the front air outlet 112 can better dissipate air.

[0091] In some examples, as shown in Figure 17, the step of controlling multiple doors to jointly close the front air outlet 112 includes: controlling the first door 200 to swing to a second position and controlling the second door 300 to swing to a fourth position. As shown in Figure 17, the step of controlling the bottommost door to close the lower air outlet 113 includes: controlling the second door 300 to swing to a third position. As shown in Figure 17, the step of also controlling at least one other door to open the front air outlet 112 includes: controlling the first door 200 to swing to a first position.

[0092] In some examples, the control method also includes: if the operating mode is heating mode and no air outlet command is received from the user, then control multiple doors to jointly close the front air outlet 112.

[0093] In some examples, as shown in Figures 16 and 17, the steps of controlling multiple open / closed doors to jointly close the front air outlet include: controlling the first open / closed door to swing to the second position, and controlling the second open / closed door to swing to the fourth position.

[0094] In heating mode, the first door 200 is controlled to swing to the second position by default, and the second door 300 is controlled to swing to the fourth position, with hot air coming out from the lower air outlet 113. Of course, users can also select the air outlet mode themselves by sending an air outlet command to the air conditioner.

[0095] In some examples, the control method also includes: based on the air outlet command being the third air outlet command, controlling at least two doors to open the front air outlet 112 together, and controlling the bottommost door to open the lower air outlet 113.

[0096] In heating mode, users can choose to have hot air emanating from both the bottom air outlet 113 and the front air outlet 112 simultaneously, as needed.

[0097] In some examples, as shown in Figure 17, the steps of controlling at least two switches to open the front air outlet 112 and controlling the bottom switch to open the lower air outlet 113 include: controlling the first switch 200 to swing to the first position and controlling the second switch 300 to swing to the fifth position.

[0098] In some examples, a method for controlling an air conditioner, as shown in Figure 17, includes:

[0099] Obtain the operating mode of the air conditioner and obtain the air outlet command issued by the user;

[0100] If the operating mode is heating mode and no air outlet command is received from the user, then the first door 200 is controlled to swing to the second position, and the second door 300 is controlled to swing to the fourth position.

[0101] Based on the operating mode being heating mode and the user issuing an airflow command to the air conditioner, then:

[0102] Based on the air outlet command being the first air outlet command, the first door 200 is controlled to swing to the first position, and the second door 300 is controlled to swing to the third position;

[0103] Based on the air outlet command being the second air outlet command, the first door 200 is controlled to swing to the second position, and the second door 300 is controlled to swing to the fourth position.

[0104] Based on the air outlet command being the third air outlet command, the first door 200 is controlled to swing to the first position, and the second door 300 is controlled to swing to the fifth position.

[0105] The air conditioner control method provided in this disclosure includes:

[0106] Obtain the operating mode of the air conditioner and obtain the air outlet command issued by the user;

[0107] Based on the operating mode being cooling mode and the user issuing an airflow command to the air conditioner, then:

[0108] Based on the air outlet command being the second air outlet command, multiple open and closed doors are controlled to jointly close the front air outlet 112, and after a set time, the bottom open and closed door is controlled to close the lower air outlet 113.

[0109] Based on the air outlet command being the first air outlet command, the bottommost door is controlled to close the lower air outlet 113.

[0110] In cooling mode, users can choose to first release cold air from the bottom air outlet 113 for rapid cooling, and then release cold air from the front air outlet 112 to avoid the cold air blowing directly on people; users can also choose to always release cold air from the front air outlet 112 to avoid the cold air blowing directly on people.

[0111] In some examples, based on the air outlet command as the first air outlet command, at least one other switch door is also controlled to open the front air outlet 112, so that the front air outlet 112 can better dissipate air.

[0112] In some examples, as shown in Figure 17, the step of controlling multiple doors to jointly close the front air outlet 112 includes: controlling the first door 200 to swing to a second position and controlling the second door 300 to swing to a fourth position. As shown in Figure 17, the step of controlling the bottommost door to close the lower air outlet 113 includes: controlling the second door 300 to swing to a third position. As shown in Figure 17, the step of also controlling at least one other door to open the front air outlet 112 includes: controlling the first door 200 to swing to a first position.

[0113] That is, as shown in Figure 17, if the air outlet command is the first air outlet command, then the first door 200 is controlled to swing to the first position, and the second door 300 is controlled to swing to the third position; if the air outlet command is the second air outlet command, then the first door 200 is controlled to swing to the second position, and the second door 300 is controlled to swing to the fourth position. After a set time, the first door 200 is controlled to swing to the first position, and the second door 300 is controlled to swing to the third position.

[0114] In some examples, the control method also includes: if the operating mode is cooling mode and no air outlet command is received from the user, then control multiple open and closed doors to jointly close the front air outlet 112, and after a set time, control the bottom open and closed door to close the lower air outlet 113.

[0115] In cooling mode, by default, cold air is first vented from the bottom air outlet 113 for rapid cooling, and then cold air is vented from the front air outlet 112 to avoid cold air blowing directly on people.

[0116] In some examples, multiple doors are controlled to close the front air outlet 112 together, and after a set time, at least one other door is controlled to open the front air outlet 112, so that the front air outlet 112 can better ventilate.

[0117] In some examples, as shown in Figures 16 and 17, the steps of controlling multiple switches to jointly close the front air outlet 112 include: controlling the first switch 200 to swing to a second position and controlling the second switch 300 to swing to a fourth position. The steps of controlling the bottommost switch to close the lower air outlet 113 include: controlling the second switch 300 to swing to a third position. The steps of also controlling at least one other switch to open the front air outlet 112 include: controlling the first switch 200 to swing to a first position.

[0118] In cooling mode, by default, the first door 200 swings to the second position, and the second door 300 swings to the fourth position. After a set time, the first door 200 swings back to the first position, and the second door 300 swings to the third position. Of course, users can also select the airflow mode themselves by sending an airflow command to the air conditioner.

[0119] In some examples, the control method also includes: based on the air outlet command being the third air outlet command, controlling at least two doors to open the front air outlet 112 together, and controlling the bottommost door to open the lower air outlet 113.

[0120] In cooling mode, users can choose to have cold air emanating from both the bottom air outlet 113 and the front air outlet 112 simultaneously, as needed.

[0121] In some examples, as shown in Figure 17, the steps of controlling at least two switches to open the front air outlet 112 and controlling the bottom switch to open the lower air outlet 113 include: controlling the first switch 200 to swing to the first position and controlling the second switch 300 to swing to the fifth position.

[0122] In some examples, as shown in Figure 17, a method for controlling an air conditioner includes:

[0123] Obtain the operating mode of the air conditioner and obtain the air outlet command issued by the user;

[0124] If the operating mode is cooling mode and no air outlet command is received from the user, then the first door 200 is controlled to swing to the second position, the second door 300 is controlled to swing to the fourth position, and after a set time, the first door 200 is controlled to swing to the first position, and the second door 300 is controlled to swing to the third position.

[0125] Based on the operating mode being cooling mode and the user issuing an airflow command to the air conditioner, then:

[0126] Based on the air outlet command being the first air outlet command, the first door 200 is controlled to swing to the first position, and the second door 300 is controlled to swing to the third position;

[0127] Based on the air outlet command being the second air outlet command, the first door 200 is controlled to swing to the second position, the second door 300 is controlled to swing to the fourth position, and after a set time, the first door 200 is controlled to swing to the first position, and the second door 300 is controlled to swing to the third position.

[0128] Based on the air outlet command being the third air outlet command, the first door 200 is controlled to swing to the first position, and the second door 300 is controlled to swing to the fifth position.

[0129] In summary, the technical solution provided in this application embodiment allows multiple doors to close the front air outlet, leaving the lower air outlet open. At this time, air can blow from the lower air outlet directly downwards towards the main body. Since multiple doors closing the front air outlet prevents condensation at the front air outlet, and the bottommost door closing the lower air outlet leaves the front air outlet at least partially open, allowing air to blow from the front air outlet towards the front of the main body, this also prevents condensation at the bottommost door. In other words, this air conditioner, in conjunction with the control panel, can deliver hot and cold air downwards, and also deliver hot and cold air forwards. This reduces blind spots in airflow, minimizes temperature differences between different areas of the room, and improves user comfort when blowing hot air, resulting in a better user experience.

[0130] In some examples, the vertical dimension of the front air outlet is larger than the front-to-back dimension of the lower air outlet, making it less likely for air to backflow and condensation to occur when the lower air outlet is discharging cold air.

[0131] In some examples, the second switch door in the fourth position has a larger vertical dimension than the first switch door in the second position. This allows the second air guide plate to better close the lower air outlet, and reduces the likelihood of air leakage between the second air guide plate and the wall of the lower air outlet.

[0132] In some examples, with the first switch door in the second position and the second switch door in the fourth position, the second switch door opens the lower air outlet and, together with the first switch door, closes the front air outlet. In this case, air can blow from the lower air outlet directly downwards from the main unit, and the second and first switches door closing the front air outlet together prevents condensation at the front air outlet. Alternatively, with the first switch door in the first position and the second switch door in the third position, the second switch door closes the lower air outlet and, together with the first switch door, opens the front air outlet. In this case, air can blow from the front air outlet towards the front of the main unit, and the second switch door closing the lower air outlet again prevents condensation at the lower air outlet. In other words, this air conditioner, in conjunction with the control panel, can deliver hot and cold air downwards, as well as hot and cold air forwards. This reduces blind spots in airflow, minimizes temperature differences between different areas of the room, and improves user comfort when receiving hot air, resulting in a better user experience.

[0133] In some examples, when the operating mode is cooling mode and no airflow command is received from the user, multiple doors are controlled to close the front air outlet together. After a set time, the bottom door is controlled to close the bottom air outlet. In this way, the air conditioner first blows cold air into the room from the bottom air outlet, so that the cold air quickly falls to the ground and cools the lower part of the room quickly. After a set time, the air conditioner then blows cold air into the room from the front air outlet, avoiding the cold air blowing directly on people.

[0134] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0135] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include at least one of those features.

[0136] In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.

[0137] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0138] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0139] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0140] It should be noted that the above embodiments or implementation methods are merely exemplary and not restrictive. Therefore, this disclosure is not limited to the content specifically shown and described herein. Various modifications, substitutions, or omissions can be made to the form and details of the implementations without departing from the scope of this disclosure.

Claims

1. An air conditioner, comprising: The main body has an internal air duct, which has an air inlet, a front air outlet and a bottom air outlet. The front air outlet is located on the front side wall of the main body and the bottom air outlet is located on the front part of the lower side wall of the main body. and Multiple switches are arranged sequentially in the vertical direction and can all be swung at the front air outlet. The multiple switches are configured to close the front air outlet together. The switch at the bottom is configured to close the lower air outlet. When the multiple switches close the front air outlet together, the lower air outlet is in the open state.

2. The air conditioner according to claim 1, wherein, At least two of the aforementioned doors are configured to open the front air vent together. Based on the fact that at least two of the aforementioned doors open the front air vent together, the lowermost door is also configured to open and close the lower air vent.

3. The air conditioner according to claim 1 or 2, wherein, The front air outlet has a first annular mating surface facing the interior of the air duct, and the lower air outlet has a second annular mating surface facing the interior of the air duct. The plurality of the switch doors are located on the side of the first annular mating surface and the second annular mating surface facing the interior of the air duct. Since multiple doors together close the front air outlet, the adjacent ends of adjacent doors are sealed and abutted, and the other ends of multiple doors are sealed and abutted with the first annular mating surface. Since the lower air outlet is closed by the switch door located at the bottom, each end of the switch door located at the bottom is sealed and abuts against the second annular mating surface.

4. The air conditioner according to claim 1 or 2, wherein, The plurality of switch doors include a first switch door and a second switch door, the first switch door being located above the second switch door, and the first switch door having a first position and a second position, and the second switch door having a third position and a fourth position; Given that the first switch door is in the second position and the second switch door is in the fourth position, the second switch door opens the lower air outlet and, together with the first switch door, closes the front air outlet. Given that the first switch door is in the first position and the second switch door is in the third position, the second switch door closes the lower air outlet and, together with the first switch door, opens the front air outlet.

5. The air conditioner according to claim 4, wherein, The second door also has a fifth position; Given that the first switch door is in the first position and the second switch door is in the fifth position, the second switch door opens the lower air outlet and, together with the first switch door, opens the front air outlet.

6. The air conditioner according to claim 5, wherein, The first switch door, the second switch door, the first position, the second position, the third position, the fourth position, and the fifth position are all located inside the air duct, and the fifth position is located between the third position and the fourth position.

7. The air conditioner according to claim 4, wherein, The front air outlet has a first annular mating surface facing the interior of the air duct, and the lower air outlet has a second annular mating surface facing the interior of the air duct. The first switch door and the second switch door are located on the side of the first annular mating surface and the second annular mating surface facing the interior of the air duct. Based on the first switch door being in the second position and the second switch door being in the fourth position, the adjacent ends of the first switch door and the second switch door are sealed and abutted together, and the other ends of the first switch door and the second switch door are sealed and abutted together with the first annular mating surface. Since the second switch door is in the third position, each end of the second switch door is in sealed contact with the second annular mating surface.

8. The air conditioner according to claim 7, wherein, The lower part of the first annular mating surface is provided with a second hinge part, and the end of the second switch door near the lower part of the first annular mating surface is provided with a second hinge mating part, and the second hinge part is hingedly connected to the second hinge mating part. Since the second switch door is in the fourth position, the lower end of the second switch door is in sealed contact with the lower part of the first annular mating surface, and the upper end of the second switch door is in sealed contact with the lower end of the first switch door in the second position. Since the second switch door is in the third position, the front end of the second switch door is in sealing contact with the front part of the second annular mating surface, and the rear end of the second switch door is in sealing contact with the rear part of the second annular mating surface.

9. The air conditioner according to claim 7, wherein, The upper part of the first annular mating surface is provided with a first hinge part, and the end of the first switch door near the upper part of the first annular mating surface is provided with a first hinge mating part, and the first hinge part is hingedly connected to the first hinge mating part. Since the first switch door is in the second position, the upper part of the first switch door is sealed and abuts against the upper part of the first annular mating surface, and the lower part of the first switch door is sealed and abuts against the upper part of the second switch door in the fourth position. Since the first switch door is in the first position, the front end of the first switch door abuts against the upper side wall of the air duct inside the air duct.

10. The air conditioner according to claim 7, wherein, A first hinge portion is provided between the upper part and the lower part of the first annular mating surface, and a first hinge mating portion is provided at one end of the first switch door away from the upper part of the first annular mating surface. The first hinge portion is hingedly connected to the first hinge mating portion. Since the first switch door is in the second position, the lower end of the first hinged part of the first switch door is sealed and abuts against the upper end of the second switch door in the fourth position, and the upper end of the first switch door is sealed and abuts against the upper part of the first annular mating surface. Since the first switch door is in the first position, the front end of the first switch door is spaced apart from both the upper part and the lower part of the first annular mating surface within the air duct.

11. The air conditioner according to claim 1 or 2, wherein, The front air outlet is larger in the vertical direction than the lower air outlet is in the front-to-back direction.

12. The air conditioner according to claim 11, wherein, The plurality of switch doors include a first switch door and a second switch door. The first switch door is located above the second switch door and can be swayed at the front air outlet. The first switch door has a first position and a second position, and the second switch door has a third position and a fourth position. Based on the first switch door being in the second position and the second switch door being in the fourth position, the second switch door opens the lower air outlet and, together with the first switch door, closes the front air outlet. Furthermore, the second switch door in the fourth position has a larger vertical dimension than the first switch door in the second position. Given that the first switch door is in the first position and the second switch door is in the third position, the second switch door closes the lower air outlet and, together with the first switch door, opens the front air outlet.

13. The air conditioner according to claim 12, wherein, The main body has a front-to-back dimension of no more than 450mm, and the air conditioner also includes: A heat exchanger is disposed in the air duct. In the front-to-back direction, the lower air outlet is located between the heat exchanger and the front air outlet. The lower part of the heat exchanger is inclined from bottom to top and forward to avoid the swing trajectory of the second switch door, and the upper part of the heat exchanger is inclined from bottom to top and backward to avoid the swing trajectory of the first switch door.

14. The air conditioner according to claim 13, wherein, The heat exchanger is bent.

15. The air conditioner according to claim 13, wherein, The dimension between the heat exchanger and the lower air outlet in the front-to-back direction is no more than 30mm. The rear part of the lower air outlet wall protrudes upward inside the air duct. The rear side of the protrusion is a guide surface, which extends upward at an angle from back to front.

16. The air conditioner according to claim 12, wherein, The front air outlet has a vertical dimension A of 80mm to 150mm, the lower air outlet has a front-to-back dimension B of 40mm to 80mm, the second switch door in the fourth position has a vertical dimension C of 35mm to 110mm, and the first switch door in the second position has a vertical dimension D of 30mm to 80mm.

17. A control method for an air conditioner as described in any one of claims 1 to 16, comprising: Obtain the air outlet command from the air conditioner; Based on the fact that the air outlet command is the second air outlet command, multiple of the opening and closing doors are controlled to jointly close the front air outlet; Based on the fact that the air outlet command is the first air outlet command, the switch door located at the bottom is controlled to close the lower air outlet.

18. The control method according to claim 17, wherein, Since the air outlet command is the second air outlet command, after controlling multiple of the switch doors to jointly close the front air outlet for a set time, the switch door located at the bottom is controlled to close the lower air outlet.

19. The control method according to claim 17 or 18, wherein, After controlling the lowermost switch door to close the lower air outlet, at least one other switch door is also controlled to open the front air outlet.

20. The control method according to claim 19, wherein, The step of controlling multiple of the opening and closing doors to simultaneously close the front air outlet includes: Controlling the first door to swing to the second position, and controlling the second door to swing to the fourth position; the step of controlling the lowermost door to close the lower air outlet includes: Controlling the second switch door to swing to the third position; the step of controlling at least one other switch door to open the front air outlet includes: Control the first door to swing to the first position.

21. The control method according to claim 17 or 18, further comprising: Based on the fact that the air outlet command is the third air outlet command, at least two of the switch doors are controlled to open the front air outlet together, and the switch door located at the bottom is controlled to open the lower air outlet.

22. The control method according to claim 21, wherein, The steps of controlling at least two of the switch doors to open the front air outlet and controlling the bottommost switch door to open the lower air outlet include: Control the first door to swing to the first position, and control the second door to swing to the fifth position.

23. A control method for an air conditioner as described in any one of claims 1 to 16, comprising: Obtain the operating mode of the air conditioner and obtain the air outlet command issued by the user; Based on the operating mode being heating mode and the user issuing an airflow command to the air conditioner, then: Based on the fact that the air outlet command is the second air outlet command, multiple of the opening and closing doors are controlled to jointly close the front air outlet; Based on the fact that the air outlet command is the first air outlet command, the switch door located at the bottom is controlled to close the lower air outlet.

24. The control method according to claim 23, wherein, After controlling the lowermost switch door to close the lower air outlet, at least one other switch door is also controlled to open the front air outlet.

25. The control method according to claim 23, further comprising: If the operating mode is heating mode and no air outlet command is received from the user, then control multiple doors to jointly close the front air outlet.

26. The control method according to any one of claims 23 to 25, further comprising: Based on the fact that the air outlet command is the third air outlet command, at least two of the switch doors are controlled to open the front air outlet together, and the switch door located at the bottom is controlled to open the lower air outlet.

27. A control method for an air conditioner as described in any one of claims 1 to 16, comprising: Obtain the operating mode of the air conditioner and obtain the air outlet command issued by the user; Based on the operating mode being cooling mode and the user issuing an airflow command to the air conditioner, then: Based on the fact that the air outlet command is the second air outlet command, multiple of the switch doors are controlled to close the front air outlet together, and after a set time, the switch door located at the bottom is controlled to close the lower air outlet. Based on the fact that the air outlet command is the first air outlet command, the switch door located at the bottom is controlled to close the lower air outlet.

28. The control method according to claim 27, further comprising: If the operating mode is cooling mode and no air outlet command is received from the user, then multiple doors are controlled to close the front air outlet together, and after a set time, the bottom door is controlled to close the lower air outlet.

29. The control method according to claim 27 or 28, wherein, After controlling the lowermost switch door to close the lower air outlet, at least one other switch door is also controlled to open the front air outlet.

30. The control method according to claim 27 or 28, further comprising: Based on the fact that the air outlet command is the third air outlet command, at least two of the switch doors are controlled to open the front air outlet together, and the switch door located at the bottom is controlled to open the lower air outlet.

31. A control method for an air conditioner as described in any one of claims 1 to 16, comprising: Obtain the operating mode of the air conditioner and obtain the air outlet command issued by the user; If the operating mode is cooling mode and no air outlet command is received from the user, then multiple doors are controlled to close the front air outlet together, and after a set time, the bottom door is controlled to close the lower air outlet.

32. The control method according to claim 31, further comprising: If the operating mode is heating mode and no air outlet command is received from the user, then control multiple doors to jointly close the front air outlet.

33. The control method according to claim 31, wherein, Based on the operating mode being heating mode and the user issuing an airflow command to the air conditioner, then: Based on the fact that the air outlet command is the second air outlet command, multiple of the opening and closing doors are controlled to jointly close the front air outlet; Based on the fact that the air outlet command is the first air outlet command, the switch door located at the bottom is controlled to close the lower air outlet.

34. The control method according to claim 33, wherein, After controlling the lowermost switch door to close the lower air outlet, at least one other switch door is also controlled to open the front air outlet.

35. The control method according to claim 32 or 33, wherein, Based on the operating mode being cooling mode and the user issuing an airflow command to the air conditioner, then: Based on the fact that the air outlet command is the second air outlet command, multiple of the switch doors are controlled to close the front air outlet together, and after a set time, the switch door located at the bottom is controlled to close the lower air outlet. Based on the fact that the air outlet command is the first air outlet command, the switch door located at the bottom is controlled to close the lower air outlet.

36. The control method according to claim 35, wherein, After controlling the lowermost switch door to close the lower air outlet, at least one other switch door is also controlled to open the front air outlet.

37. The control method according to claim 35, further comprising: Based on the fact that the air outlet command is the third air outlet command, at least two of the switch doors are controlled to open the front air outlet together, and the switch door located at the bottom is controlled to open the lower air outlet.

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