Air conditioner and control method thereof

Abstract

The invention discloses an air conditioner and a control method thereof. The air conditioner comprises a main body internally provided with an air duct, the air duct is provided with a front air outlet and a lower air outlet, the front air outlet is located in the front side wall of the main body, the lower air outlet is located in the front of the lower side wall of the main body, and the size of the front air outlet in the vertical direction is larger than that of the lower air outlet in the front-back direction; the opening and closing doors are sequentially arranged in the vertical direction and arranged at the front air outlet in a swinging mode, the opening and closing doors are arranged to be capable of jointly closing the front air outlet, the opening and closing door located at the lowest position is arranged to be capable of closing the lower air outlet, and the lower air outlet is in an open state on the basis that the front air outlet is jointly closed by the opening and closing doors. The air conditioner is matched with an engineering panel so that hot air and cold air can be supplied to the lower portion, and hot air and cold air can also be supplied to the front portion; in addition, the size of the front air outlet in the vertical direction is larger than that of the lower air outlet in the front-back direction, and therefore condensation caused by air backflow is not prone to occurring in the cold air discharging process of the lower air outlet.

Description

Technical Field

[0001] The present invention relates to air conditioning equipment technology, and more particularly to an air conditioner and a control method thereof. Background Art

[0002] Duct units are usually installed in the ceiling with air inlet below and air outlet from the side. The air outlet is equipped with an engineering panel to guide / diffuse the airflow to achieve the cooling / heating function. The engineering panel is popular with users because its length and width can be customized, and it is more coordinated and elegant with the home decoration style. It is the most common installation method. Of course, the air outlet can also be equipped with an electric panel to guide / diffuse the airflow to achieve the cooling / heating function. The existing technology has the following problems:

[0003] 1. The air guide grille of the engineering panel cannot be adjusted automatically. The hot air cannot fall to the ground during heating. Even if the inclination angle of the air guide grille is set to the maximum downward, it is impossible to deliver hot air directly under the duct unit. There are problems such as large air supply blind spots, large temperature differences between different indoor areas, and poor heating effects. In addition, during cooling, cold air always blows directly to the user, resulting in a poor user experience.

[0004] 2. Compared with engineering panels, electric panels have problems such as high cost, difficulty in home decoration and installation, and the actual standard configuration rate is relatively low; and when heating, it is impossible to deliver hot air directly under the duct machine. Summary of the invention

[0005] An embodiment of the present application provides an air conditioner, comprising: a main body, having an air duct inside, the air duct having a front air outlet and a lower air outlet, the front air outlet being located on the front side wall of the main body, the lower air outlet being located on the front part of the lower side wall of the main body, and the size of the front air outlet in the up-down direction is larger than the size of the lower air outlet in the front-to-back direction; and a plurality of switch doors, which are arranged in sequence along the up-down direction and can be swingably arranged at the front air outlet, the plurality of switch doors are arranged to jointly close the front air outlet, the switch door located at the lowest one is arranged to jointly close the lower air outlet, and based on the plurality of switch doors jointly closing the front air outlet, the lower air outlet is in an open state.

[0006] In some exemplary embodiments, at least two of the switch doors are configured to open the front air outlet together. Based on the at least two switch doors opening the front air outlet together, the switch door located at the bottom is also configured to open the lower air outlet and close the lower air outlet.

[0007] In some exemplary embodiments, 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 both are swingably disposed at the front air outlet, and 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;

[0008] 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 closes the front air outlet together with the first switch door, and the size of the second switch door in the fourth position in the up-down direction is greater than the size of the first switch door in the second position in the up-down direction;

[0009] Based on the fact 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 opens the front air outlet together with the first switch door.

[0010] In some exemplary embodiments, the dimension of the main body in the front-to-back direction is not greater than 450 mm, and the air conditioner further includes: a heat exchanger, which is arranged in the air duct, and the lower air outlet is located between the heat exchanger and the front air outlet in the front-to-back direction, and the lower part of the heat exchanger is tilted forward from bottom to top to avoid the swing trajectory of the second switch door, and the upper part of the heat exchanger is tilted backward from bottom to top to avoid the swing trajectory of the first switch door.

[0011] In some exemplary embodiments, the heat exchanger has a bent shape.

[0012] In some exemplary embodiments, the dimension between the heat exchanger and the lower air outlet in the front-to-back direction is no more than 30 mm, the rear portion of the mouth wall of the lower air outlet protrudes upward inside the air duct, the rear side surface of the protrusion is an air-guiding curved surface, and the air-guiding curved surface extends upward from the rear to the front.

[0013] In some exemplary embodiments, the dimension A of the front air outlet in the up-down direction is 80 mm to 150 mm, the dimension B of the lower air outlet in the front-to-back direction is 40 mm to 80 mm, the dimension C of the second switch door in the fourth position in the up-down direction is 35 mm to 110 mm, and the dimension D of the first switch door in the second position in the up-down direction is 30 mm to 80 mm.

[0014] In some exemplary embodiments, the second switch door further has a fifth position;

[0015] Based on the fact 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 opens the front air outlet together with the first switch door.

[0016] In some exemplary embodiments, the mouth wall of the front air outlet has a first annular mating surface facing the inside of the air duct, the mouth wall of the lower air outlet has a second annular mating surface facing the inside of the air duct, and the first switch door and the second switch door are both located on the side of the first annular mating surface and the second annular mating surface facing the inside of the air duct;

[0017] 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 in sealed contact, and the other ends of the first switch door and the second switch door are in sealed contact with the first annular mating surface;

[0018] Based on the fact that the first switch door is in the first position and the second switch door is in the third position, each end of the second switch door is in sealing contact with the second annular matching surface.

[0019] In some exemplary embodiments, a second hinged portion is provided at the lower portion of the first annular mating surface, and a second hinged mating portion is provided at one end of the second switch door adjacent to the lower portion of the first annular mating surface, and the second hinged portion is hingedly connected to the second hinged mating portion;

[0020] Based on the second switch door being in the fourth position, the lower end of the second switch door is in sealing contact with the lower portion of the first annular mating surface, and the upper end of the second switch door is in sealing contact with the lower end of the first switch door in the second position;

[0021] Based on the second switch door being in the third position, the front end of the second switch door is in sealing contact with the front portion of the second annular matching surface, and the rear end of the second switch door is in sealing contact with the rear portion of the second annular matching surface.

[0022] In some exemplary embodiments, a first hinged portion is provided on the upper portion of the first annular mating surface, a first hinged mating portion is provided on an end portion of the first switch door adjacent to the upper portion of the first annular mating surface, and the first hinged portion is hingedly connected to the first hinged mating portion;

[0023] Based on the first switch door being in the second position, the upper end of the first switch door is in sealing contact with the upper portion of the first annular mating surface, and the lower end of the first switch door is in sealing contact with the upper end of the second switch door in the fourth position;

[0024] Based on the first opening and closing door being in the first position, the front end portion of the first opening and closing door abuts against the upper side wall of the air duct in the air duct.

[0025] In some exemplary embodiments, a portion between an upper portion of the first annular mating surface and a lower portion of the first annular mating surface is provided with a first hinged portion, an end portion of the first switch door away from the upper portion of the first annular mating surface is provided with a first hinged mating portion, and the first hinged portion is hingedly connected to the first hinged mating portion;

[0026] Based on the first switch door being in the second position, the lower end of the first switch door provided with the first hinged matching portion is in sealing contact with the upper end of the second switch door in the fourth position, and the upper end of the first switch door is in sealing contact with the upper part of the first annular matching surface;

[0027] Based on the first switch door being in the first position, the front end portion of the first switch door is spaced apart from both the upper portion of the first annular matching surface and the lower portion of the first annular matching surface in the air duct.

[0028] The embodiment of the present invention further provides a method for controlling an air conditioner, comprising:

[0029] Obtaining an air outlet instruction of the air conditioner;

[0030] Based on the air outlet instruction being the second air outlet instruction, controlling the plurality of switch doors to jointly close the front air outlet;

[0031] Based on the air outlet instruction being the first air outlet instruction, the switch door located at the bottom is controlled to close the lower air outlet.

[0032] In some exemplary embodiments, based on the air outlet instruction being the first air outlet instruction, at least one other switch door is also controlled to open the front air outlet.

[0033] In some exemplary embodiments, based on the fact that the air outlet instruction is the second air outlet instruction, after controlling the plurality of 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.

[0034] In some exemplary embodiments, based on the fact that the air outlet instruction is the second air outlet instruction, after controlling the plurality of switch doors to jointly close the front air outlet for a set time, at least one other switch door is also controlled to open the front air outlet.

[0035] In some exemplary embodiments, the step of controlling at least one other switch door to open the front air outlet includes:

[0036] The first switch door is controlled to swing to a first position.

[0037] In some exemplary embodiments, the step of controlling the plurality of switch doors to jointly close the front air outlet comprises:

[0038] Controlling the first switch door to swing to the second position, and controlling the second switch door to swing to the fourth position; the step of controlling the switch door located at the bottom to close the lower air outlet comprises:

[0039] The second switch door is controlled to swing to a third position.

[0040] In some exemplary embodiments, the control method further includes: based on the air outlet instruction being the third air outlet instruction, controlling at least two of the switch doors to jointly open the front air outlet, and controlling the switch door located at the bottom to open the lower air outlet.

[0041] In some exemplary embodiments, the step of controlling at least two of the switch doors to open the front air outlet together and controlling the switch door located at the bottom to open the lower air outlet includes:

[0042] The first switch door is controlled to swing to the first position, and the second switch door is controlled to swing to the fifth position.

[0043] The embodiment of the present invention further provides a method for controlling an air conditioner, comprising:

[0044] Acquire the operation mode of the air conditioner, and acquire the air output instruction of the air conditioner issued by the user;

[0045] Based on the fact that the operation mode is the heating mode and an air outlet instruction of the air conditioner issued by the user is obtained, then:

[0046] Based on the air outlet instruction being the second air outlet instruction, controlling the plurality of switch doors to jointly close the front air outlet;

[0047] Based on the air outlet instruction being the first air outlet instruction, the switch door located at the bottom is controlled to close the lower air outlet.

[0048] In some exemplary embodiments, based on the air outlet instruction being the first air outlet instruction, at least one other switch door is also controlled to open the front air outlet.

[0049] In some exemplary embodiments, the control method further includes: based on the operating mode being a heating mode and no air outlet command of the air conditioner issued by a user is obtained, controlling the plurality of switch doors to jointly close the front air outlet.

[0050] In some exemplary embodiments, the control method further includes: based on the air outlet instruction being the third air outlet instruction, controlling at least two of the switch doors to jointly open the front air outlet, and controlling the switch door located at the bottom to open the lower air outlet.

[0051] The embodiment of the present invention further provides a method for controlling an air conditioner, comprising:

[0052] Acquire the operation mode of the air conditioner, and acquire the air output instruction of the air conditioner issued by the user;

[0053] Based on the fact that the operation mode is the cooling mode and an air outlet instruction of the air conditioner issued by the user is obtained, then:

[0054] Based on the air outlet instruction being the second air outlet instruction, the plurality of switch doors are controlled to jointly close the front air outlet, and after a set time, the switch door at the bottom is controlled to close the lower air outlet;

[0055] Based on the air outlet instruction being the first air outlet instruction, the switch door located at the bottom is controlled to close the lower air outlet.

[0056] In some exemplary embodiments, based on the air outlet instruction being the first air outlet instruction, at least one other switch door is also controlled to open the front air outlet.

[0057] In some exemplary embodiments, the control method further includes: based on the fact that the operating mode is a cooling mode and no air outlet command of the air conditioner issued by the user is obtained, controlling the plurality of switch doors to jointly close the front air outlet, and after a set time, controlling the switch door located at the bottom to close the lower air outlet.

[0058] In some exemplary embodiments, a plurality of the switch doors are controlled to jointly close the front air outlet, and then after a set time, at least one other switch door is also controlled to open the front air outlet.

[0059] In some exemplary embodiments, the control method further includes: based on the air outlet instruction being the third air outlet instruction, controlling at least two of the switch doors to jointly open the front air outlet, and controlling the switch door located at the bottom to open the lower air outlet.

[0060] In the technical solution provided by the embodiment of the present application, multiple switch doors jointly close the front air outlet, and the lower air outlet is in an open state. At this time, air can be blown from the lower air outlet toward the bottom of the main body, and the multiple switch doors jointly close the front air outlet, so that the multiple switch doors will not have condensation problems at the front air outlet; the switch door located at the bottom closes the lower air outlet, and the front air outlet is at least partially in an open state. At this time, air can be blown from the front air outlet toward the front side of the main body, and the switch door located at the bottom closes the lower air outlet, so that the switch door located at the bottom will not have condensation problems at the lower air outlet; that is, the air conditioner can realize hot air and cold air delivery to the bottom in conjunction with the engineering panel, and can also realize hot air and cold air delivery to the front, so as to achieve the purpose of reducing the air supply blind spot, reducing the temperature difference between different areas in the room, and improving the user's comfort of blowing hot air, and the user experience is better.

[0061] Furthermore, the size of the front air outlet in the up-down direction is greater than the size of the lower air outlet in the front-back direction, so that the lower air outlet is less likely to have air backflow and condensation during the process of discharging cold air.

[0062] Furthermore, the size of the second switch door in the fourth position in the up-down direction is greater than the size of the first switch door in the second position in the up-down direction, so that the second air guide plate can better close the lower air outlet, and air leakage between the second air guide plate and the wall of the lower air outlet is less likely to occur.

[0063] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or be understood by implementing the present application. Other advantages of the present application can be realized and obtained by the schemes described in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] The accompanying drawings are used to provide an understanding of the technical solution of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present application and do not constitute a limitation on the technical solution of the present application.

[0065] Figure 1 A schematic cross-sectional view of an air conditioner provided in some embodiments of the present application, wherein the lower air outlet is opened and the front air outlet is closed;

[0066] Figure 2 A schematic cross-sectional view of an air conditioner provided in some other embodiments of the present application, wherein the lower air outlet is opened and the front air outlet is closed;

[0067] Figure 3 A schematic cross-sectional view of an air conditioner provided in some embodiments of the present application, wherein the front air outlet is opened and the lower air outlet is closed;

[0068] Figure 4A schematic cross-sectional view of an air conditioner provided in some other embodiments of the present application, wherein the front air outlet is opened and the lower air outlet is closed;

[0069] Figure 5 It is a cross-sectional structural schematic diagram of an installation scheme of a first switch door and a second switch door, the first switch door is in a first position, and the second switch door is in a fifth position;

[0070] Figure 6 It is a cross-sectional structural schematic diagram of another installation scheme of the first switch door and the second switch door, the first switch door is in the first position, and the second switch door is in the third position;

[0071] Figure 7 for Figure 6 Another cross-sectional structural schematic diagram of the structure shown, the first switch door is in the first position, and the second switch door is in the fifth position;

[0072] Figure 8 A schematic cross-sectional view of an air conditioner provided in some embodiments of the present application, wherein the lower air outlet is opened and the front air outlet is closed;

[0073] Fig. 9 for Figure 8 The cross-sectional structure diagram of the air conditioner shown in the figure shows that the front air outlet is opened and the lower air outlet is closed;

[0074] Fig.10 for Figure 8 The cross-sectional structural diagram of the air conditioner shown, the front air outlet is opened, and the lower air outlet is opened;

[0075] Fig.11 is a schematic diagram of the structure at the first annular mating surface;

[0076] Fig.12 is a schematic diagram of the structure at the second annular mating surface;

[0077] Fig.13 A schematic cross-sectional view of an air conditioner provided in some embodiments of the present application installed on a suspended ceiling;

[0078] Fig.14 A flow chart of a method for controlling an air conditioner provided in some embodiments of the present application;

[0079] Fig.15 A flow chart of a method for controlling an air conditioner provided in some other embodiments of the present application;

[0080] Fig.16 A flow chart of a method for controlling an air conditioner provided in some further embodiments of the present application;

[0081] Fig.17 A flowchart of a method for controlling an air conditioner provided in some further embodiments of the present application.

[0082] The corresponding relationship between the reference numerals and the component names is as follows:

[0083] 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 curved surface, 1171 second hinged part, 118 first hinged part, 119 first hinged part, 200 first opening and closing door, 210 first hinged mating part, 220 first hinged mating part, 300 second opening and closing door, 310 second hinged mating part, 400 fan, 500 heat exchanger, 600 engineering panel, 700 opening and closing door. DETAILED DESCRIPTION

[0084] The present application describes multiple embodiments, but the description is exemplary rather than restrictive, and it is obvious to those skilled in the art that there may be more embodiments and implementations within the scope of the embodiments described in the present application. Although many possible feature combinations are shown in the drawings and discussed in the specific embodiments, many other combinations of the disclosed features are also possible. Unless specifically limited, any feature or element of any embodiment may be used in combination with any other feature or element in any other embodiment, or may replace any other feature or element in any other embodiment.

[0085] The present application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features and elements disclosed in the present application may also be combined with any conventional features or elements to form a unique invention scheme. Any features or elements of any embodiment may also be combined with features or elements from other invention schemes to form another unique invention scheme. Therefore, it should be understood that any feature shown and / or discussed in the present application may be implemented individually or in any appropriate combination. Therefore, except for the limitations made according to the attached claims and their equivalents, the embodiments are not subject to other restrictions. In addition, various modifications and changes may be made within the scope of protection of the attached claims.

[0086] In addition, when describing representative embodiments, the specification may have presented the method and / or process as a specific sequence of steps. However, to the extent that the method or process does not rely on the specific order of the steps described herein, the method or process should not be limited to the steps of the specific order described. As will be understood by those of ordinary skill in the art, other sequences of steps are also possible. Therefore, the specific sequence of the steps set forth in the specification should not be interpreted as a limitation to the claims. In addition, the claims for the method and / or process should not be limited to the steps of performing them in the order written, and those skilled in the art can easily understand that these sequences can be changed and still remain within the spirit and scope of the embodiments of the present application.

[0087] The air conditioner provided in the embodiment of the present application is as follows: Figures 8 to 13 As shown, it includes: a main body 100, the interior of the main body 100 has an air duct 110, the air duct 110 has an air inlet 111, a front air outlet 112 and a lower air outlet 113, the front air outlet 112 is located on the front side wall of the main body 100, and the lower air outlet 113 is located on the front part of the lower side wall of the main body 100; and a plurality of switch doors 700, which are arranged in sequence along the up and down directions and can be swingably arranged at the front air outlet 112, the plurality of switch doors 700 are arranged to be able to jointly close the front air outlet 112, the switch door 700 located at the bottom is arranged to be able to close the lower air outlet 113, and based on the front air outlet 112 being jointly closed by the plurality of switch doors 700, the lower air outlet 113 is in an open state.

[0088] When the plurality of switch doors 700 seal the front air outlet 112 together, the lower air outlet 113 is in an open state, and air can be blown from the lower air outlet 113 toward the bottom of the main body 100 at this time, and the plurality of switch doors 700 seal the front air outlet 112 together, so that the plurality of switch doors 700 will not cause condensation at the front air outlet 112; when the switch door 700 at the bottom seals the lower air outlet 113, the front air outlet 112 is at least partially in an open state, and air can be discharged from the front The opening 112 blows air toward the front side of the main body 100, and the switch door 700 at the bottom closes the lower air outlet 113, so that condensation will not occur at the lower air outlet 113 of the switch door 700 at the bottom; that is, the air conditioner can deliver hot air and cold air to the bottom in conjunction with the engineering panel, and can also deliver hot air and cold air to the front, so as to reduce the air supply blind area, reduce the temperature difference between different areas in the room, and improve the user's comfort when blowing hot air, and provide a better user experience.

[0089] In some exemplary embodiments, at least two switch doors 700 are configured to open the front air outlet together. Based on the at least two switch doors 700 opening the front air outlet together, the switch door 700 located at the bottom is also configured to open the lower air outlet and close the lower air outlet, that is, based on the at least two switch doors 700 (it may be that the at least two switch doors 700 include the switch door 700 located at the bottom; or it may be that the at least two switch doors 700 do not include the switch door 700 located at the bottom) opening the front air outlet together, the switch door 700 located at the bottom may open the lower air outlet, or the switch door 700 located at the bottom may close the lower air outlet.

[0090] In some examples, such as Figures 8 to 12 As shown, the mouth wall of the front air outlet has a first annular mating surface 114 facing the inside of the air duct, the mouth wall of the lower air outlet has a second annular mating surface 115 facing the inside of the air duct, and multiple switch doors 700 are located on the side of the first annular mating surface 114 facing the inside of the air duct. Based on the fact that multiple switch doors 700 jointly close the front air outlet, the adjacent ends of adjacent switch doors 700 are sealed and abutted, and the other ends of the multiple switch doors 700 are sealed and abutted with the first annular mating surface 114. This solution can achieve that the multiple switch doors 700 completely close the front air outlet. Based on the fact that the switch door 700 located at the bottom closes the lower air outlet, the ends of the switch door 700 located at the bottom are sealed and abutted with the second annular mating surface 115. This solution can achieve that the switch door 700 located at the bottom completely closes the front air outlet.

[0091] In some exemplary embodiments, Figures 1 to 7 , Figures 11 to 13 As shown, the plurality of 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 both are swingably disposed 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. Figure 1 and Figure 2 As shown, based on the first opening and closing door 200 being in the second position and the second opening and closing door 300 being in the fourth position, the second opening and closing door 300 opens the lower air outlet 113 and closes the front air outlet 112 together with the first opening and closing door 200. Figure 3 , Figure 4 and Figure 6 As shown, based on the first opening and closing door 200 being in the first position and the second opening and closing door 300 being in the third position, the second opening and closing door 300 closes the lower air outlet 113 and opens the front air outlet 112 together with the first opening and closing door 200 .

[0092] 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 closes the front air outlet 112 together with the first switch door 200. At this time, air can be blown from the lower air outlet 113 toward the bottom of the main body 100, and the second switch door 300 closes the front air outlet 112 together with the first switch door 200. In this way, the second switch door 300 and the first switch door 200 will not cause 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 300 opens the lower air outlet 113 and closes the front air outlet 112 together with the first switch door 200. The closing door 300 seals the lower air outlet 113 and opens the front air outlet 112 together with the first opening and closing door 200. At this time, air can be blown from the front air outlet 112 toward the front side of the main body 100, and the second opening and closing door 300 seals the lower air outlet 113. In this way, condensation will not occur at the lower air outlet 113 due to air leakage by the second opening and closing door 300. That is, the air conditioner cooperates with the engineering panel 600 to deliver hot air and cold air to the bottom, and also to the front. In this way, the purpose of reducing the air supply blind area, reducing the temperature difference between different areas in the room, and improving the user's comfort when blowing hot air can be achieved, and the user experience is better.

[0093] In some examples, such as Figure 5 and Figure 7 As shown, the second switch door 300 also has a fifth position. Based on the first switch door 200 being in the first position and the second switch door 300 being in the fifth position, the second switch door 300 opens the lower air outlet 113 and opens the front air outlet 112 together with the first switch door 200. This solution can realize air outlet at the front air outlet 112 and the lower air outlet 113 at the same time, which can better reduce the air supply blind area and the temperature difference between different areas in the room, and provide a better user experience.

[0094] One solution is to set a swingable opening and closing door between the indoor heat exchanger and the front air outlet. The opening and closing door can close any one of the front air outlet and the lower air outlet by switching the position. However, the operation process of the opening and closing door occupies a relatively large space in the front-to-back direction, and it is necessary to increase the distance between the indoor heat exchanger and the front air outlet in the front-to-back direction. That is, the size of the air conditioner in the front-to-back direction needs to be increased, which does not meet the current popular 450mm air conditioner installation requirements on indoor ceilings. In addition, a swinging fit gap needs to be reserved between the periphery of the opening and closing door and the mouth wall of the front air outlet and the mouth wall of the lower air outlet. The swinging fit gap will cause howling and condensation problems due to air leakage.

[0095] In order to solve the problem of increased size of the air conditioner in the front-to-back direction caused by adding a switch door inside the air conditioner, one solution is to set a swingable first switch door inside the front air outlet, and a swingable second switch door inside the lower air outlet. Since a swinging fit gap needs to be reserved between the periphery of the first switch door and the inner circumference of the front air outlet, a swinging fit gap also needs to be reserved between the periphery of the second switch door and the inner circumference of the lower air outlet: when the first switch door closes the front air outlet and the second switch door opens the lower air outlet, the swinging fit gap between the periphery of the first switch door and the inner circumference of the front air outlet will produce howling and condensation due to air leakage; when the first switch door opens the front air outlet and the second switch door closes the lower air outlet, the swinging fit gap between the periphery of the second switch door and the inner circumference of the lower air outlet will produce howling and condensation due to air leakage.

[0096] In some embodiments, Figures 1 to 7 As shown, 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, and the fifth position is located between the third position and the fourth position. Among them, the size of the front air outlet 112 in the up-down direction is greater than the size of the lower air outlet 113 in the front-to-back direction, the size of the second switch door 300 in the fourth position in the up-down direction is greater than the size of the first switch door 200 in the second position in the up-down direction, and a heat exchanger 500 and a fan 400 are arranged in the air duct 110, and 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 at the rear side of the heat exchanger 500. Among them, the heat exchanger 500 is set to a bent shape, such as the heat exchanger is a V-shaped heat exchanger, a U-shaped heat exchanger or a C-shaped heat exchanger.

[0097] In one embodiment, the heat exchanger 500 is configured as a V-shaped heat exchanger, the lower part of the V-shaped heat exchanger is tilted from bottom to top and forward, and the upper part of the V-shaped heat exchanger is tilted from bottom to top and backward, so that the V-shaped heat exchanger can avoid the swinging track of the first switch door 200 and the swinging track of the second switch door 300 at the same time. In this solution, the first switch door 200 and the second switch door 300 are arranged on the side of the heat exchanger 500 facing the front air outlet 112 while ensuring the operating performance of the air conditioner. There is no need to increase the distance between the heat exchanger 500 and the front air outlet 112. The operation process of the first switch door 200 and the second switch door 300 will not be interfered by the heat exchanger 500, and the size of the air conditioner in the front-to-back direction does not need to be increased, meeting the air conditioner layout with a size of 450 mm in the front-to-back direction.

[0098] Furthermore, if Figures 1 to 4 , Fig.11 and Fig.12As shown, the mouth wall of the front air outlet 112 has a first annular mating surface 114 facing the inside of the air duct 110, and the mouth wall of the lower air outlet 113 has a second annular mating surface 115 facing the inside of the air duct 110, and 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 inside of the air duct. Based on the first switch door 200 being in the second position and the second switch door 300 being in the fourth position, the adjacent ends of the first switch door 200 and the second switch door 300 are sealed and abutted, and the other ends of the first switch door 200 and the second switch door 300 are sealed and abutted 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, so that during the air outlet process of the lower air outlet 113, no whistling and condensation will occur between the first switch door 200, the second switch door 300 and the mouth wall of the front air outlet 112 due to air leakage. Moreover, the air is discharged only from the lower air outlet 113. Under the effect of the wind pressure formed by the wind beam blown by the first and second opening and closing doors 200 and 300 in the air duct 110, the overlapping parts of the adjacent ends of the first and second opening and closing doors 200 and 300 are pressed by the wind pressure, and the peripheries of the first and second opening and closing doors 200 and 300 are pressed by the wind pressure against the first annular mating surface 250, so that the first and second opening and closing doors 200 and 300 have a better effect of closing the front air outlet 112. Based on the fact that the first opening and closing door 200 is in the first position and the second opening and closing door 300 is in the third position, each end of the second opening and closing door 300 is sealed against the second annular mating surface 115, so that the second opening and closing door 300 closes the lower air outlet 113. In this way, during the air discharge process of the front air outlet 112, no whistling or condensation will occur between the second opening and closing door 300 and the wall of the lower air outlet 113 due to air leakage. Moreover, when air is discharged only from the front air outlet 112, the second opening and closing door 300 is pressed against the second annular mating surface 260 by the wind pressure formed by the wind beam blown inside the air duct 110, so that the second opening and closing door 300 has a better effect of closing the lower air outlet 113.

[0099] The adjacent parts of the first annular mating surface 114 and the second annular mating surface 115 are smoothly connected to form a concave cylindrical surface. Figure 2 and Figure 7 As shown, the rear part of the wall of the lower air outlet 113 is a protrusion 116 inside the air duct 100, the second annular mating surface 115 includes the upper end surface of the protrusion 116, and the rear side surface of the protrusion 116 is a wind guide curved surface 117, which extends upward from the back to the front. The size of the protrusion 116 in the vertical direction is 15mm to 30mm, and the size of the lower air outlet 113 in the front-to-back direction is 40mm to 80mm. It can be, for example Figures 1 to 13As shown, the upper portion of the rear inner side surface of the lower air outlet 113 is an arc-shaped surface extending from top to bottom and forward, and the size of the upper end of the lower air outlet 113 in the front-to-back direction is W 2 The dimension of the lower end of the lower air outlet 113 in the front-to-back direction is W 1 , W 1 40mm~70mm, W 2 =W 1 When the lower air outlet 113 discharges cold air, the air guide curved surface 117 and the arc surface can guide the cold air to completely fill the lower air outlet 113, thereby preventing the outside air from flowing back from the rear position of the mouth wall in the lower air outlet 113 to the inside of the air duct 100, thereby causing condensation at the rear position of the mouth wall of the lower air outlet 113.

[0100] Furthermore, if Figure 5 and Figure 7 As shown, the lower part of the first annular mating surface 114 is provided with a second hinged portion 1171, and one end of the second switch door 300 adjacent to the lower part of the first annular mating surface 114 is provided with a second hinged mating portion 310, and the second hinged portion 1171 is hingedly connected with the second hinged mating portion 310, so that the second switch door 300 can be swingably arranged 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 against the lower part of the first annular mating surface 114, and the upper end of the second switch door 300 is sealed 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 against the first annular mating surface 114 to jointly close the front air outlet 112. Based on the second switch door 300 being in the third position, the end of the second switch door 300 away from the second hinged fitting portion 310 is in sealing contact with the front of the second annular fitting surface 115, and the rear end of the second switch door 300 is in sealing contact with the rear of the second annular fitting surface 115, that is, the periphery of the second switch door 300 is in sealing contact with the second annular fitting surface 115 to close 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.

[0101] In one embodiment, if Figure 4 and Figure 5As shown, a first hinged portion 118 is provided at the upper portion of the first annular mating surface 114, and a first hinged mating portion 210 is provided at one end of the first switch door 200 adjacent to the upper portion of the first annular mating surface 114, and the first hinged portion 118 is hingedly connected to the first hinged mating portion 210. Based on the first switch door 200 being in the second position, the upper end of the first switch door 200 is sealed against the upper portion of the first annular mating surface 114, and the lower end of the first switch door 200 is sealed against the upper end of the second switch door 300 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 during the overlap), and 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 to jointly close the front air outlet 112. Based on the first switch door 200 being in the first position, the front end of the first switch door 200 away from the first hinged fitting portion 210 abuts against the upper side wall of the air duct 110 in the air duct 110, and the side of the first switch door 200 facing the upper side wall of the air duct 110 fits with the upper side wall of the air duct 110. In order 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.

[0102] In another embodiment, if Figure 6 and Figure 7 As shown, the portion between the upper portion of the first annular mating surface 114 and the lower portion of the first annular mating surface 114 is provided with a first hinged portion 119, and the end of the first switch door 200 away from the upper portion of the first annular mating surface 114 is provided with a first hinged mating portion 220, and the first hinged portion 119 is hingedly connected to the first hinged mating portion 220. Based on the first switch door 200 being in the second position, the lower end of the first switch door 200 provided with the first hinged mating portion 220 is sealed and abutted against the upper end of the second switch door 300 in the fourth position, and the upper end of the first switch door 200 is sealed and abutted 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, and the periphery of the combined structure of the first switch door 200 and the second switch door 300 is sealed and abutted against the first annular mating surface 114 to jointly close the front air outlet 112. Based on the first switch door 200 being in the first position, the other end (i.e., the front end) of the first switch door 200 is spaced apart from the upper portion of the first annular mating surface 114 and the lower portion of the first annular mating surface 114 in the air duct 110. At this time, the wind beam blown out from the front air outlet 112 is blown out together on the upper and lower sides of the first switch door 200. At this time, the first switch door 200 also has a guiding effect on the blown wind beam.

[0103] In some embodiments, Figure 5As shown, the dimension A of the front air outlet 112 in the vertical direction is 80mm-150mm, the dimension B of the lower air outlet 113 in the front-to-back direction is 40mm-80mm, the dimension C of the second switch door 300 in the fourth position in the vertical direction is 35mm-110mm, the dimension D of the first switch door 200 in the second position in the vertical direction is 30mm-80mm, and the dimension E between the heat exchanger 500 and the lower air outlet 113 in the front-to-back direction is not greater than 30mm. In this solution, the lower air outlet 113 will not have the problem of air reflux and condensation during the process of discharging cold air. If the dimension of the lower air outlet 113 in the front-to-back direction is too large, the lower air outlet 113 will have the problem of air reflux and condensation during the process of discharging cold air. If the dimension of the lower air outlet 113 in the front-to-back direction is too small, the air outlet effect of the lower air outlet 113 is not good.

[0104] It can be, for example Figure 1 and Figure 3 As shown, 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 Figure 2 and Figure 4 As shown, the air inlet 111 is located on the rear side wall of the main body 100, etc.; the above can all achieve the purpose of this application, and its purpose does not deviate from the design concept of the present invention, and will not be repeated here, and should all fall within the protection scope of this application.

[0105] The control method of the air conditioner provided by the embodiment of the present invention includes:

[0106] Get the air output command of the air conditioner;

[0107] Based on the air outlet instruction being the second air outlet instruction, the plurality of switch doors are controlled to jointly close the front air outlet 112;

[0108] Based on the air outlet instruction being the first air outlet instruction, the switch door at the bottom is controlled to close the lower air outlet 113 .

[0109] When the multiple switch doors jointly close the front air outlet 112, the lower air outlet 113 is in an open state. At this time, air can be blown from the lower air outlet 113 toward the bottom of the main body 100, and the multiple switch doors jointly close the front air outlet 112, so that the multiple switch doors will not have condensation problems at the front air outlet 112; the switch door located at the bottom closes the lower air outlet 113, and the front air outlet 112 is at least partially in an open state. At this time, air can be blown from the front air outlet 112 toward the front side of the main body 100, and the switch door located at the bottom closes the lower air outlet 113, so that the switch door located at the bottom will not have condensation problems at the lower air outlet 113; that is, the air conditioner can realize hot air supply and cold air supply to the bottom in conjunction with the engineering panel, and can also realize hot air supply and cold air supply to the front, so as to achieve the purpose of reducing the air supply blind area, reducing the temperature difference between different areas in the room, and improving the user's comfort of blowing hot air, and the user experience is better.

[0110] In some examples, based on the air outlet instruction being the first air outlet instruction, 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 discharge air.

[0111] In some embodiments, Fig.14 As shown, the step of controlling at least one other opening and closing door to open the front air outlet 112 includes: controlling the first opening and closing door 200 to swing to the first position.

[0112] In some embodiments, Fig.14 As shown, the step of controlling the plurality of switch doors to jointly close the front air outlet 112 includes: controlling the first switch door 200 to swing to the second position, and controlling the second switch door 300 to swing to the fourth position. Fig.14 As shown, the step of controlling the lowermost switch door to close the lower air outlet 113 includes: controlling the second switch door 300 to swing to the third position.

[0113] The air conditioner controls the first switch door 200 to swing to the second position, and controls the second switch door 300 to swing to the fourth position, so that the second switch door 300 opens the lower air outlet 113 and closes the front air outlet 112 together with the first switch door 200. At this time, it can be used in the heating mode to blow hot air from the lower air outlet 113 into the room, so that the hot air quickly falls to the ground; controls the first switch door 200 to swing to the first position, and controls the second switch door 300 to swing to the third position, so that the second switch door 300 closes the lower air outlet 113, and opens the front air outlet 112 together with the first switch door 200. At this time, it can be used in the cooling mode to blow cold air from the front air outlet 112 into the room to prevent the cold air from blowing directly on people.

[0114] In some examples, the control method further includes: based on the air outlet instruction being the third air outlet instruction, controlling at least two switch doors to jointly open the front air outlet 112, and controlling the switch door located at the bottom to open the lower air outlet 113. It can be that the at least two switch doors include the switch door located at the bottom; or it can be that the at least two switch doors do not include the switch door located at the bottom; the above can achieve the purpose of this application, and its purpose does not deviate from the design concept of the present invention, and will not be repeated here, and should all belong to the protection scope of this application.

[0115] In some examples, such as Fig.14 As shown, the steps of controlling at least two switch doors to jointly open the front air outlet 112 and controlling the switch door at the bottom to open the lower air outlet 113 include: controlling the first switch door 200 to swing to the first position and controlling the second switch door 300 to swing to the fifth position.

[0116] The first switch door 200 is controlled to swing to the first position, and the second switch door 300 is controlled to swing to the fifth position, so that the second switch door 300 opens the lower air outlet 113, and opens the front air outlet 112 together with the first switch door 200, so that air is discharged from the front air outlet 112 and the lower air outlet 113 at the same time, which can better reduce the air supply blind area and the temperature difference between different areas in the room, and improve the user experience.

[0117] In order to prevent condensation on the surface of the second opening and closing door 300 located at the fifth position during cooling, the second opening and closing door 300 can be controlled to reciprocate in a small range relative to the fifth position.

[0118] In some embodiments, based on the air outlet instruction being the second air outlet instruction, multiple switch doors are controlled to jointly close the front air outlet 112 for a set time, and then the switch door located at the bottom is controlled to close the lower air outlet 113.

[0119] In some embodiments, based on the air outlet instruction being the second air outlet instruction, after controlling multiple switch doors to jointly close the front air outlet 112 for a set time, at least one other switch door (excluding the switch door at the bottom) is also controlled to open the front air outlet 112.

[0120] In some embodiments, Fig.15 As shown, the step of controlling the bottom switch door to close the lower air outlet 113 includes: controlling the second switch door 300 to swing to the third position. The step of controlling at least one other switch door to open the front air outlet 112 includes: controlling the first switch door 200 to swing to the first position.

[0121] That is, after the first switch door 200 is in the second position and the second switch door 300 is in the fourth position for a set time, the first switch door 200 is controlled to swing to the first position and the second switch door 300 is controlled to swing to the third position. The set time can be reasonably set as needed, such as setting the time to 1min, 3min, 5min or 10min, etc., which can achieve the purpose of this application. Its purpose does not deviate from the design concept of the present invention, and will not be repeated here, and should all belong to the protection scope of this application.

[0122] After the first switch door 200 is in the second position and the second switch door 300 is in the fourth position for a set time, the first switch door 200 is controlled to swing to the first position and the second switch door 300 is controlled to swing to the third position, so as to close the lower air outlet 113 and open the front air outlet 112. That is, the air conditioner first blows cold air into the room from the lower air outlet 113, so that the cold air quickly falls to the ground to achieve rapid cooling of the lower area of ​​the room. After the set time, the air conditioner blows cold air into the room from the front air outlet 112 to prevent the cold air from blowing directly on people.

[0123] The control method of the air conditioner provided by the embodiment of the present invention includes:

[0124] Acquire the operation mode of the air conditioner, and acquire the air output instruction of the air conditioner issued by the user;

[0125] Based on the fact that the operation mode is the heating mode and an air outlet instruction of the air conditioner issued by the user is obtained, then:

[0126] Based on the air outlet instruction being the second air outlet instruction, the plurality of switch doors are controlled to jointly close the front air outlet 112;

[0127] Based on the air outlet instruction being the first air outlet instruction, the switch door at the bottom is controlled to close the lower air outlet 113 .

[0128] That is, in the heating mode, the user can choose to discharge hot air from the lower air outlet 113 as needed, and the user can also choose to discharge hot air from the front air outlet 112 as needed.

[0129] In some examples, based on the air outlet instruction being the first air outlet instruction, 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 discharge air.

[0130] In some embodiments, Fig.17 As shown, the step of controlling the plurality of switch doors to jointly close the front air outlet 112 includes: controlling the first switch door 200 to swing to the second position, and controlling the second switch door 300 to swing to the fourth position. Fig.17 As shown, the step of controlling the lowermost switch door to close the lower air outlet 113 includes: controlling the second switch door 300 to swing to the third position. Fig.17As shown, the step of controlling at least one other switch door to open the front air outlet 112 includes: controlling the first switch door 200 to swing to the first position.

[0131] In some examples, the control method further includes: based on the operating mode being the heating mode and no air outlet command of the air conditioner issued by the user is obtained, controlling a plurality of switch doors to jointly close the front air outlet 112 .

[0132] In some embodiments, Fig.16 and Fig.17 As shown, the step of controlling multiple switch doors to jointly close the front air outlet includes: controlling the first switch door to swing to the second position, and controlling the second switch door to swing to the fourth position.

[0133] That is, in the heating mode, the first switch door 200 is swung to the second position by default, and the second switch door 300 is controlled to swing to the fourth position, and hot air is discharged from the lower air outlet 113. Of course, the user can also select the air outlet mode by sending an air outlet command to the air conditioner.

[0134] In some examples, the control method further includes: based on the air outlet instruction being the third air outlet instruction, controlling at least two switch doors to jointly open the front air outlet 112 , and controlling the switch door located at the bottom to open the lower air outlet 113 .

[0135] That is, in the heating mode, the user can choose to discharge hot air from the bottom air outlet 113 and the front air outlet 112 at the same time as needed.

[0136] In some embodiments, Fig.17 As shown, the steps of controlling at least two switch doors to jointly open the front air outlet 112 and controlling the switch door at the bottom to open the lower air outlet 113 include: controlling the first switch door 200 to swing to the first position and controlling the second switch door 300 to swing to the fifth position.

[0137] In one embodiment, a method for controlling an air conditioner, such as Fig.17 As shown, including:

[0138] Acquire the operation mode of the air conditioner, and acquire the air output instruction of the air conditioner issued by the user;

[0139] Based on the operating mode being the heating mode and the air outlet command of the air conditioner issued by the user not being obtained, the first switch door 200 is controlled to swing to the second position, and the second switch door 300 is controlled to swing to the fourth position;

[0140] Based on the fact that the operation mode is the heating mode and an air outlet instruction of the air conditioner issued by the user is obtained, then:

[0141] Based on the air outlet instruction being the first air outlet instruction, the first opening and closing door 200 is controlled to swing to the first position, and the second opening and closing door 300 is controlled to swing to the third position;

[0142] Based on the air outlet instruction being the second air outlet instruction, the first opening and closing door 200 is controlled to swing to the second position, and the second opening and closing door 300 is controlled to swing to the fourth position;

[0143] Based on the air outlet instruction being the third air outlet instruction, the first opening and closing door 200 is controlled to swing to the first position, and the second opening and closing door 300 is controlled to swing to the fifth position.

[0144] The control method of the air conditioner provided by the embodiment of the present invention includes:

[0145] Acquire the operation mode of the air conditioner, and acquire the air output instruction of the air conditioner issued by the user;

[0146] Based on the fact that the operation mode is the cooling mode and an air outlet instruction of the air conditioner issued by the user is obtained, then:

[0147] Based on the air outlet instruction being the second air outlet instruction, the plurality of switch doors are controlled to jointly close the front air outlet 112, and after a set time, the switch door at the bottom is controlled to close the lower air outlet 113;

[0148] Based on the air outlet instruction being the first air outlet instruction, the switch door at the bottom is controlled to close the lower air outlet 113 .

[0149] That is, in the cooling mode, the user can choose to first blow out cold air from the lower air outlet 113 for rapid cooling, and then blow out cold air from the front air outlet 112 to avoid the cold air blowing directly on people; the user can also choose to always blow out cold air from the front air outlet 112 to avoid the cold air blowing directly on people as needed.

[0150] In some examples, based on the air outlet instruction being the first air outlet instruction, 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 discharge air.

[0151] In some embodiments, Fig.17 As shown, the step of controlling the plurality of switch doors to jointly close the front air outlet 112 includes: controlling the first switch door 200 to swing to the second position, and controlling the second switch door 300 to swing to the fourth position. Fig.17 As shown, the step of controlling the lowermost switch door to close the lower air outlet 113 includes: controlling the second switch door 300 to swing to the third position. Fig.17 As shown, the step of controlling at least one other switch door to open the front air outlet 112 includes: controlling the first switch door 200 to swing to the first position.

[0152] That is: Fig.17 As shown, based on the air outlet command being the first air outlet command, the first switch door 200 is controlled to swing to the first position, and the second switch door 300 is controlled to swing to the third position; based on the air outlet command being the second air outlet command, the first switch door 200 is controlled to swing to the second position, and the second switch door 300 is controlled to swing to the fourth position, and after the set time, the first switch door 200 is controlled to swing to the first position, and the second switch door 300 is controlled to swing to the third position.

[0153] In some examples, the control method also includes: based on the operating mode being the cooling mode and no air outlet command of the air conditioner issued by the user is obtained, multiple switch doors are controlled to jointly close the front air outlet 112, and after a set time, the switch door located at the bottom is controlled to close the lower air outlet 113.

[0154] That is, in the cooling mode, by default, the lower air outlet 113 is used to discharge cold air first for rapid cooling, and then the front air outlet 112 is used to discharge cold air to prevent the cold air from blowing directly on people.

[0155] In some embodiments, a plurality of switch doors are controlled to jointly close the front air outlet 112 , and then after a set time, 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 discharge air.

[0156] In some embodiments, Fig.16 and Fig.17 As shown, the step of controlling the plurality of switch doors to jointly close the front air outlet 112 includes: controlling the first switch door 200 to swing to the second position, and controlling the second switch door 300 to swing to the fourth position. The step of controlling the switch door located at the bottom to close the lower air outlet 113 includes: controlling the second switch door 300 to swing to the third position. The step of further controlling at least one other switch door to open the front air outlet 112 includes: controlling the first switch door 200 to swing to the first position.

[0157] That is, in cooling mode, by default, the first switch door 200 swings to the second position, and the second switch door 300 swings to the fourth position, and after a set time, the first switch door 200 swings to the first position, and the second switch door 300 swings to the third position. Of course, the user can also select the air outlet mode by sending an air outlet command to the air conditioner.

[0158] In some examples, the control method further includes: based on the air outlet instruction being the third air outlet instruction, controlling at least two switch doors to jointly open the front air outlet 112 , and controlling the switch door located at the bottom to open the lower air outlet 113 .

[0159] That is, in the cooling mode, the user can choose to discharge cold air from the bottom air outlet 113 and the front air outlet 112 at the same time as needed.

[0160] In some examples, such as Fig.17 As shown, the steps of controlling at least two switch doors to jointly open the front air outlet 112 and controlling the switch door at the bottom to open the lower air outlet 113 include: controlling the first switch door 200 to swing to the first position and controlling the second switch door 300 to swing to the fifth position.

[0161] In one embodiment, if Fig.17 As shown, a method for controlling an air conditioner includes:

[0162] Acquire the operation mode of the air conditioner, and acquire the air output instruction of the air conditioner issued by the user;

[0163] Based on the fact that the operation mode is the cooling mode and no air outlet command of the air conditioner issued by the user is obtained, the first switch door 200 is controlled to swing to the second position, the second switch door 300 is controlled to swing to the fourth position, and after a set time, the first switch door 200 is controlled to swing to the first position, and the second switch door 300 is controlled to swing to the third position;

[0164] Based on the fact that the operation mode is the cooling mode and an air outlet instruction of the air conditioner issued by the user is obtained, then:

[0165] Based on the air outlet instruction being the first air outlet instruction, the first opening and closing door 200 is controlled to swing to the first position, and the second opening and closing door 300 is controlled to swing to the third position;

[0166] Based on the air outlet instruction being the second air outlet instruction, the first opening and closing door 200 is controlled to swing to the second position, and the second opening and closing door 300 is controlled to swing to the fourth position. After the set time, the first opening and closing door 200 is controlled to swing to the first position, and the second opening and closing door 300 is controlled to swing to the third position.

[0167] Based on the air outlet instruction being the third air outlet instruction, the first opening and closing door 200 is controlled to swing to the first position, and the second opening and closing door 300 is controlled to swing to the fifth position.

[0168] In summary, the technical solution provided by the embodiment of the present application is to make the first switch door in the second position and the second switch door in the fourth position, then the second switch door opens the lower air outlet and closes the front air outlet together with the first switch door. At this time, air can be blown from the lower air outlet toward the bottom of the main body, and the second switch door closes the front air outlet together with the first switch door, so that the second switch door and the first switch door will not have condensation problems at the front air outlet; make the first switch door in the first position and the second switch door in the third position, then the second switch door closes the lower air outlet and opens the front air outlet together with the first switch door. At this time, air can be blown from the front air outlet toward the front side of the main body, and the second switch door closes the lower air outlet, so that the second switch door will not have condensation problems at the lower air outlet; that is, the air conditioner cooperates with the engineering panel to realize hot air and cold air delivery to the bottom, and can also realize hot air and cold air delivery to the front, so as to achieve the purpose of reducing the air supply blind area, reducing the temperature difference between different areas in the room, and improving the user's comfort of blowing hot air, and the user experience is better.

[0169] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0170] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include at least one of the features.

[0171] In the description of the present application, “plurality” means at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0172] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; 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 connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0173] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0174] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0175] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. An air conditioner, characterized in that: include: A main body, having an air duct inside, the air duct having a front air outlet and a lower air outlet, the front air outlet is located on the front side wall of the main body, the lower air outlet is located on the front part of the lower side wall of the main body, and the size of the front air outlet in the up-down direction is greater than the size of the lower air outlet in the front-to-back direction; and A plurality of switch doors are arranged in sequence along the up and down directions and can be swingably arranged at the front air outlet. The plurality of switch doors are arranged to jointly close the front air outlet. The switch door located at the bottom is arranged to close the lower air outlet. Based on the joint closure of the front air outlet by the plurality of switch doors, the lower air outlet is in an open state.

2. The air conditioner according to claim 1, characterized in that: At least two of the switch doors are configured to open the front air outlet together. Based on the at least two switch doors opening the front air outlet together, the switch door located at the bottom is also configured to open and close the lower air outlet.

3. The air conditioner according to claim 1 or 2, characterized in that: 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 both are swingably arranged at the front air outlet, and 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 closes the front air outlet together with the first switch door, and the size of the second switch door in the fourth position in the up-down direction is greater than the size of the first switch door in the second position in the up-down direction; Based on the fact 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 opens the front air outlet together with the first switch door.

4. The air conditioner according to claim 3, characterized in that: The dimension of the main body in the front-to-back direction is not greater than 450 mm, and the air conditioner further comprises: The heat exchanger is arranged in the air duct, and the lower air outlet is located between the heat exchanger and the front air outlet in the front-to-back direction, and the lower part of the heat exchanger is tilted forward from bottom to top to avoid the swing trajectory of the second switch door, and the upper part of the heat exchanger is tilted backward from bottom to top to avoid the swing trajectory of the first switch door.

5. The air conditioner according to claim 4, characterized in that: The heat exchanger is in a bent shape.

6. The air conditioner according to claim 5, characterized in that: The dimension between the heat exchanger and the lower air outlet in the front-to-back direction is no more than 30 mm, the rear portion of the mouth wall of the lower air outlet protrudes upward inside the air duct, the rear side surface of the protrusion is an air-guiding curved surface, and the air-guiding curved surface extends upward from the back to the front.

7. The air conditioner according to claim 4, characterized in that: The dimension A of the front air outlet in the up-down direction is 80mm~150mm, the dimension B of the lower air outlet in the front-to-back direction is 40mm~80mm, the dimension C of the second switch door in the fourth position in the up-down direction is 35mm~110mm, and the dimension D of the first switch door in the second position in the up-down direction is 30mm~80mm.

8. The air conditioner according to any one of claims 3 to 7, characterized in that: The second switch door also has a fifth position; Based on the fact 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 opens the front air outlet together with the first switch door.

9. The air conditioner according to any one of claims 3 to 7, characterized in that: The mouth wall of the front air outlet has a first annular mating surface facing the inside of the air duct, the mouth wall of the lower air outlet has a second annular mating surface facing the inside of the air duct, and the first switch door and the second switch door are both located on one side of the first annular mating surface and the second annular mating surface facing the inside 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 in sealed contact, and the other ends of the first switch door and the second switch door are in sealed contact with the first annular mating surface; Based on the fact that the first switch door is in the first position and the second switch door is in the third position, each end of the second switch door is in sealing contact with the second annular matching surface.

10. The air conditioner according to claim 9, characterized in that: A second hinged portion is provided at the lower portion of the first annular matching surface, and a second hinged matching portion is provided at one end of the second switch door adjacent to the lower portion of the first annular matching surface, and the second hinged portion is hingedly connected to the second hinged matching portion; Based on the second switch door being in the fourth position, the lower end of the second switch door is in sealing contact with the lower portion of the first annular mating surface, and the upper end of the second switch door is in sealing contact with the lower end of the first switch door in the second position; Based on the second switch door being in the third position, the front end of the second switch door is in sealing contact with the front portion of the second annular matching surface, and the rear end of the second switch door is in sealing contact with the rear portion of the second annular matching surface.

11. The air conditioner according to claim 9, characterized in that: A first hinged portion is provided on the upper portion of the first annular matching surface, a first hinged matching portion is provided on an end portion of the first switch door adjacent to the upper portion of the first annular matching surface, and the first hinged portion is hingedly connected to the first hinged matching portion; Based on the first switch door being in the second position, the upper end of the first switch door is in sealing contact with the upper portion of the first annular mating surface, and the lower end of the first switch door is in sealing contact with the upper end of the second switch door in the fourth position; Based on the first opening and closing door being in the first position, the front end portion of the first opening and closing door abuts against the upper side wall of the air duct in the air duct.

12. The air conditioner according to claim 9, characterized in that: A first hinged portion is provided between the upper portion of the first annular mating surface and the lower portion of the first annular mating surface, and a first hinged mating portion is provided at an end of the first switch door away from the upper portion of the first annular mating surface, and the first hinged portion is hingedly connected to the first hinged mating portion; Based on the first switch door being in the second position, the lower end of the first switch door provided with the first hinged matching portion is in sealing contact with the upper end of the second switch door in the fourth position, and the upper end of the first switch door is in sealing contact with the upper part of the first annular matching surface; Based on the first switch door being in the first position, the front end portion of the first switch door is spaced apart from both the upper portion of the first annular matching surface and the lower portion of the first annular matching surface in the air duct.

13. A method for controlling an air conditioner according to any one of claims 1 to 12, characterized in that: include: Obtaining an air outlet instruction of the air conditioner; Based on the air outlet instruction being the second air outlet instruction, controlling the plurality of switch doors to jointly close the front air outlet; Based on the air outlet instruction being the first air outlet instruction, the switch door located at the bottom is controlled to close the lower air outlet.

14. The control method according to claim 13, characterized in that: Based on the fact that the air outlet instruction is the second air outlet instruction, after controlling the plurality of 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.

15. The control method according to claim 13 or 14, characterized in that: After the step of controlling the switch door located at the bottom to close the lower air outlet, at least one other switch door is controlled to open the front air outlet.

16. The control method according to claim 15, characterized in that: The step of controlling the plurality of switch doors to jointly close the front air outlet comprises: controlling the first switch door to swing to the second position, and controlling the second switch door to swing to the fourth position; The step of controlling the lowermost switch door to close the lower air outlet comprises: controlling the second switch door to swing to a third position; The step of controlling at least one other switch door to open the front air outlet includes: controlling the first switch door to swing to a first position.

17. The control method according to claim 13 or 14, characterized in that: Also includes: Based on the fact that the air outlet instruction is the third air outlet instruction, 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.

18. The control method according to claim 17, characterized in that: The step of controlling at least two of the switch doors to jointly open the front air outlet and controlling the switch door located at the bottom to open the lower air outlet comprises: The first switch door is controlled to swing to the first position, and the second switch door is controlled to swing to the fifth position.

19. A method for controlling an air conditioner according to any one of claims 1 to 12, characterized in that: include: Acquire the operation mode of the air conditioner, and acquire the air output instruction of the air conditioner issued by the user; Based on the fact that the operation mode is the heating mode and an air outlet instruction of the air conditioner issued by the user is obtained, then: Based on the air outlet instruction being the second air outlet instruction, controlling the plurality of switch doors to jointly close the front air outlet; Based on the air outlet instruction being the first air outlet instruction, the switch door located at the bottom is controlled to close the lower air outlet.

20. The control method according to claim 19, characterized in that: After the step of controlling the switch door located at the bottom to close the lower air outlet, at least one other switch door is controlled to open the front air outlet.

21. The control method according to claim 19, characterized in that: Also includes: Based on the fact that the operation mode is the heating mode and no air outlet command of the air conditioner issued by the user is obtained, the plurality of switch doors are controlled to jointly close the front air outlet.

22. The control method according to any one of claims 19 to 21, characterized in that: Also includes: Based on the fact that the air outlet instruction is the third air outlet instruction, 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.

23. A method for controlling an air conditioner according to any one of claims 1 to 12, characterized in that: include: Acquire the operation mode of the air conditioner, and acquire the air output instruction of the air conditioner issued by the user; Based on the fact that the operation mode is the cooling mode and an air outlet instruction of the air conditioner issued by the user is obtained, then: Based on the air outlet instruction being the second air outlet instruction, the plurality of switch doors are controlled to jointly close the front air outlet, and after a set time, the switch door at the bottom is controlled to close the lower air outlet; Based on the air outlet instruction being the first air outlet instruction, the switch door located at the bottom is controlled to close the lower air outlet.

24. The control method according to claim 23, characterized in that: Also includes: Based on the fact that the operating mode is cooling mode and no air outlet command of the air conditioner is obtained from the user, the plurality of switch doors are controlled to jointly close the front air outlet, and after a set time, the switch door at the bottom is controlled to close the lower air outlet.

25. The control method according to claim 23 or 24, characterized in that: After the step of controlling the switch door located at the bottom to close the lower air outlet, at least one other switch door is controlled to open the front air outlet.

26. The control method according to claim 23 or 24, characterized in that: Also includes: Based on the fact that the air outlet instruction is the third air outlet instruction, 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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