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 an air inlet, 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 lower side wall of the main body, and the opening wall of the front air outlet is provided with a first annular matching surface; 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-back direction; and the multiple 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 when the multiple opening and closing doors jointly close the front air outlet, the adjacent ends of the adjacent opening and closing doors abut against the first annular matching face, and the other ends of the multiple opening and closing doors abut against the first annular matching face. The air conditioner is matched with an engineering panel to achieve hot air supply and cold air supply to the right lower portion and can also achieve hot air supply and cold air supply to the right front portion, and when the front air outlet is jointly sealed by the multiple opening and closing doors, the sealing effect of the front air outlet is good.

Description

[0001] This application is a divisional application of the application with the application number 202411549824.4, the application date of October 31, 2024, and the invention name of "an air conditioner and a control method thereof". TECHNICAL FIELD

[0002] The present document relates to air conditioning equipment technology, in particular to an air conditioner and a control method thereof. BACKGROUND

[0003] The ducted air conditioner usually adopts the way of under-air-out or side-air-out for ceiling installation, and the air outlet is matched with the engineering panel to guide / diffuse the airflow, so as to realize the refrigeration / heating function. The engineering panel is customized in length and width, and is more coordinated and atmospheric in style when matched with home decoration, so it is deeply welcomed by users and is the most common installation method. The prior art has the following problems: 1. For the side-air-out scheme: the air guide grille of the engineering panel cannot be automatically adjusted, and the hot air cannot fall to the ground when heating. Even if the inclination angle of the air guide grille is set to the maximum downward, it is also impossible to realize the hot air supply to the directly below of the ducted air conditioner, and there are problems such as large air supply blind area, large temperature difference between different areas in the room, poor heating effect, etc. 2. For the under-air-out scheme: the cold air is always blown directly to the user when cooling, and the user experience is poor. SUMMARY

[0004] The embodiment of the present application provides an air conditioner, which comprises: a main body, which has an air duct inside, the air duct has an air inlet, 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 lower side wall of the main body, and the mouth wall of the front air outlet has a first annular matching surface; a heat exchanger arranged in the air duct, the lower air outlet is located between the heat exchanger and the front air outlet in the front-rear direction; and a plurality of switch doors, which are arranged to be able to jointly close the front air outlet, the lowermost switch door is arranged to be able to close the lower air outlet, and based on the plurality of switch doors jointly closing the front air outlet, the adjacent end portions of the adjacent switch doors abut, and the other end portions of the plurality of switch doors abut with the first annular matching surface.

[0005] In some example embodiments, the mouth wall of the lower air outlet has a second annular matching surface, and based on the lowermost switch door closing the lower air outlet, each end portion of the lowermost switch door abuts with the second annular matching surface.

[0006] In some example embodiments, the lower air outlet is located at a front portion of a lower side wall of the main body, the first and second annular fitting surfaces are both directed towards an interior of the air duct, and the plurality of switch doors are located at a side of the first and second annular fitting surfaces directed towards the interior of the air duct.

[0007] In some example embodiments, at least two of the switch doors are configured to collectively open the front air outlet, and based on the at least two switch doors collectively opening the front air outlet, the lowermost switch door is further configured to open and close the lower air outlet.

[0008] In some example embodiments, the plurality of switch doors are sequentially arranged in an up-down direction and swingably arranged at the front air outlet, and based on the plurality of switch doors collectively closing the front air outlet, the lower air outlet is in an open state.

[0009] In some example 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 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 collectively closes the front air outlet with the first switch door, and adjacent end portions of the first switch door and the second switch door abut, and other end portions of the first switch door and the second switch door abut the first annular fitting surface. Based on the first switch door being in the first position and the second switch door being in the third position, the second switch door closes the lower air outlet and collectively opens the front air outlet with the first switch door, and each end portion of the second switch door abuts the second annular fitting surface.

[0010] In some example embodiments, the second switch door further has a fifth position. Based on the first switch door being in the first position and the second switch door being in the fifth position, the second switch door opens the lower air outlet and collectively opens the front air outlet with the first switch door.

[0011] In some example embodiments, 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 in the interior of the air duct, and the fifth position is located between the third position and the fourth position.

[0012] In some example embodiments, a lower portion of the first annular mating surface is provided with a second hinge portion, an end portion of the second switch door adjacent to the lower portion of the first annular mating surface is provided with a second hinge mating portion, and the second hinge portion is hingedly connected with the second hinge mating portion. Based on the second switch door being in the fourth position, a lower end portion of the second switch door abuts against the lower portion of the first annular mating surface, and an upper end portion of the second switch door abuts against a lower end portion of the first switch door in the second position. Based on the second switch door being in the third position, a front end portion of the second switch door abuts against a front portion of the second annular mating surface, and a rear end portion of the second switch door abuts against a rear portion of the second annular mating surface.

[0013] In some example embodiments, an upper portion of the first annular mating surface is provided with a first hinge portion, an end portion of the first switch door adjacent to the upper portion of the first annular mating surface is provided with a first hinge mating portion, and the first hinge portion is hingedly connected with the first hinge mating portion. Based on the first switch door being in the second position, an upper end portion of the first switch door abuts against the upper portion of the first annular mating surface, and a lower end portion of the first switch door abuts against an upper end portion of the second switch door in the fourth position. Based on the first switch door being in the first position, a front end portion of the first switch door abuts against an upper side wall of the air duct in the air duct.

[0014] In some example embodiments, a portion between the upper portion of the first annular mating surface and the lower portion of the first annular mating surface is provided with a first hinge 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 hinge mating portion, and the first hinge portion is hingedly connected with the first hinge mating portion. Based on the first switch door being in the second position, a lower end portion of the first switch door provided with the first hinge mating portion abuts against an upper end portion of the second switch door in the fourth position, and an upper end portion of the first switch door abuts against the upper portion of the first annular mating surface. Based on the first switch door being in the first position, a front end portion of the first switch door is spaced apart from both the upper portion of the first annular mating surface and the lower portion of the first annular mating surface in the air duct.

[0015] The embodiment of the present application also provides a control method of an air conditioner, comprising: obtaining an air outlet instruction of the air conditioner; based on the air outlet instruction being a second air outlet instruction, controlling multiple switch doors to jointly close the front air outlet. if the air outlet instruction is a first air outlet instruction, then controlling the switch door located at the lowermost position to close the lower air outlet.

[0016] In some example embodiments, based on the air outlet instruction being a first air outlet instruction, further controlling at least one other switch door to open the front air outlet.

[0017] In some example embodiments, the step of controlling at least one other switch door to open the front air outlet comprises: controlling the first switch door to swing to a first position.

[0018] In some example embodiments, the step of controlling multiple switch doors to jointly close the front air outlet comprises: controlling the first switch door to swing to a second position and the second switch door to swing to a fourth position; and the step of controlling the switch door located at the lowermost position to close the lower air outlet comprises: controlling the second switch door to swing to a third position.

[0019] In some example embodiments, the control method further comprises: if the air outlet instruction is a third air outlet instruction, then controlling at least two switch doors to jointly open the front air outlet and controlling the switch door located at the lowermost position to open the lower air outlet.

[0020] In some example embodiments, the step of controlling at least two switch doors to jointly open the front air outlet and controlling the switch door located at the lowermost position to open the lower air outlet comprises: controlling the first switch door to swing to a first position and the second switch door to swing to a fifth position.

[0021] In some example embodiments, if the air outlet instruction is a second air outlet instruction, then further controlling the switch door located at the lowermost position to close the lower air outlet after a set time of controlling multiple switch doors to jointly close the front air outlet.

[0022] In some example embodiments, if the air outlet instruction is a second air outlet instruction, then further controlling at least one other switch door to open the front air outlet after a set time of controlling multiple switch doors to jointly close the front air outlet.

[0023] In some example embodiments, the step of controlling multiple switch doors to jointly close the front air outlet comprises: controlling the first switch door to swing to a second position and the second switch door to swing to a fourth position; and the step of controlling the switch door located at the lowermost position to close the lower air outlet comprises: controlling the second swing door to swing to a third position; the step of controlling the at least one other swing door to open the front air outlet comprises: controlling the first swing door to swing to a first position.

[0024] The technical scheme provided by the embodiments of the present application can realize that the plurality of swing doors completely close the front air outlet, so that the problem of condensation of the swing doors at the front air outlet does not occur; the swing door at the lowermost position closes the lower air outlet, so that the problem of condensation of the swing door at the lower air outlet does not occur; that is, the air conditioner cooperated with the engineering panel can realize sending hot air and cold air to the front, and can also realize sending hot air and cold air to the front, so that 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 can be achieved, and the user experience is better.

[0025] Further, when the swing door at the lowermost position closes the lower air outlet, each end of the swing door at the lowermost position abuts against the second annular matching surface, so that the swing door at the lowermost position can completely close the front air outlet, and the problem of condensation of the swing door at the lower air outlet does not occur.

[0026] Further, the first switch door is in the second position, the second switch door is in the fourth position, the second switch door opens the lower air outlet, and the first switch door and the second switch door jointly close the front air outlet. At this time, air blowing can be performed from the lower air outlet toward the front of the main body, and the adjacent end portions of the first switch door and the second switch door abut, and the other end portions of the first switch door and the second switch door abut the first annular matching surface. This scheme can realize that the first switch door and the second switch door completely close the front air outlet, so that the second switch door and the first switch door do not have the problem of condensation at the front air outlet. 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 the first switch door and the second switch door jointly open the front air outlet. At this time, air blowing can be performed from the front air outlet toward the front of the main body, and the end portions of the second switch door abut the second annular matching surface. This scheme can realize that the second switch door completely closes the front air outlet, so that the second switch door does not have the problem of condensation at the lower air outlet. That is, the air conditioner cooperated with the engineering panel can realize sending hot air and cold air to the front, so as to reduce the air blowing blind area, reduce the temperature difference between different areas in the room, improve the user's comfort of blowing hot air, and better user experience.

[0027] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent from the description, or can be learned by practice of the present application. Other advantages of the present application can be realized and obtained by the schemes described in the specification and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0028] The accompanying drawings are included to provide an understanding of the present application, and constitute a part of the specification, together with the embodiments of the present application, to explain the technical scheme of the present application, and do not constitute a limitation on the technical scheme of the present application.

[0029] Figure 1 The cross-sectional structure schematic diagram of the air conditioner provided for some embodiments of the present application is shown, the lower air outlet is opened, and the front air outlet is closed; Figure 2 The cross-sectional structure schematic diagram of the air conditioner provided for some embodiments of the present application is shown, the lower air outlet is opened, and the front air outlet is closed; Figure 3 The cross-sectional structure schematic diagram of the air conditioner provided for some embodiments of the present application is shown, the lower air outlet is opened, and the front air outlet is closed; Figure 4 The cross-sectional structure schematic diagram of the air conditioner provided for some embodiments of the present application is shown, the lower air outlet is opened, and the front air outlet is closed; Figure 5This is a cross-sectional structural diagram 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. Figure 6 This 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. Figure 7 for Figure 6 Another cross-sectional view of the structure shown shows the first switch door in the first position and the second switch door in the fifth position. Figure 8 This is a cross-sectional view of an air conditioner provided in some embodiments of the present application, showing that the lower air outlet is open and the front air outlet is closed. Figure 9 for Figure 8 The diagram shows a cross-sectional view of the air conditioner, with the front air outlet open and the lower air outlet closed. Figure 10 for Figure 8 The diagram shows a cross-sectional view of the air conditioner, with the front air outlet and the lower air outlet both open. Figure 11 This is a schematic diagram of the structure at the first annular mating surface; Figure 12 This is a schematic diagram of the structure at the second annular mating surface; Figure 13 A cross-sectional structural schematic diagram of an air conditioner installed in a suspended ceiling, provided for some embodiments of this application; Figure 14 Flowcharts of air conditioner control methods provided in some embodiments of this application; Figure 15 Flowcharts of control methods for air conditioners provided in other embodiments of this application; Figure 16 A flowchart of a control method for an air conditioner provided in some embodiments of this application; Figure 17 A flowchart of an air conditioner control method provided in some embodiments of this application.

[0030] The correspondence between the reference numerals and the component names is as follows: 100 main body, 110 air duct, 111 air inlet, 112 front air outlet, 113 lower air outlet, 114 first annular fitting surface, 115 second annular fitting surface, 116 protrusion, 117 air guide curved surface, 1171 second hinge part, 118 first hinge part, 119 first hinge part, 200 first switch door, 210 first hinge fitting part, 220 first hinge fitting part, 300 second switch door, 310 second hinge fitting part, 400 fan, 500 heat exchanger, 600 engineering panel, 700 switch door. DETAILED DESCRIPTION

[0031] The present application describes a number of embodiments, but the description is exemplary rather than limiting and it will be apparent to those of ordinary skill in the art that numerous more embodiments and implementations are possible within the scope of the embodiments described in the present application. Although a number of possible combinations of features have been set forth in the accompanying figures and discussed above, many other combinations of the disclosed features are possible. Unless specifically intended otherwise, any feature or element of any embodiment can be used in combination with any other feature or element of any other embodiment, or in replacement of any other feature or element in any other embodiment.

[0032] 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 herein can also be combined with any conventional features or elements to form unique invention solutions. Any feature or element of any embodiment can also be combined with features or elements from other invention solutions to form another unique invention solution. Thus, it should be understood that any feature shown and / or discussed in the present application can be implemented alone or in any appropriate combination. Accordingly, the embodiments are not to be restricted, except as by the appended claims and their equivalents. Additionally, various modifications and changes can be made within the scope of the following claims.

[0033] Furthermore, in describing representative embodiments, the specification can have presented the method and / or process as a particular sequence of steps. However, to the extent that the method or process depends on more than one step, the method or process should not be limited to the particular sequence of steps described. Other sequences of steps can be possible, and are within the scope of the embodiments. Thus, man skilled in the art will appreciate that the specific order of the steps in the specifications can not be construed as a limitation on the claims. Furthermore, the claims should not be limited to the steps of the method and / or process in the order written, and one skilled in the art can readily appreciate that the order of the steps can be varied, and remain within the spirit and scope of the embodiments.

[0034] The air conditioner provided by the embodiments of the present application comprises a main body 100, the inside 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 at the front side wall of the main body 100, and the lower air outlet 113 is located at the front part of the lower side wall of the main body 100; and a plurality of switch doors 700 are sequentially arranged in the up-down direction and 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 lowermost part is arranged to be able to close the lower air outlet 113, and based on the plurality of switch doors 700 jointly closing the front air outlet 112, the lower air outlet 113 is in an open state. Figures 8 to 13 The plurality of switch doors 700 jointly close the front air outlet 112, and the lower air outlet 113 is in an open state, at this time, air blowing can be performed from the lower air outlet 113 to the front of the main body 100, and the plurality of switch doors 700 jointly close the front air outlet 112, so that the plurality of switch doors 700 will not have the problem of condensation at the front air outlet 112; the switch door 700 located at the lowermost part closes the lower air outlet 113, and the front air outlet 112 is at least partially in an open state, at this time, air blowing can be performed from the front air outlet 112 to the front of the main body 100, and the switch door 700 located at the lowermost part closes the lower air outlet 113, so that the switch door 700 located at the lowermost part will not have the problem of condensation at the lower air outlet 113; that is, the air conditioner cooperated with the engineering panel can realize blowing hot air and blowing cold air to the front, and can also realize blowing hot air and blowing cold air to the front, so that the purpose of reducing the air blowing blind area, reducing the temperature difference of different areas in the room and improving the user's comfort of blowing hot air can be achieved, and the user experience is better.

[0035] In some example embodiments, at least two switch doors 700 are arranged to be able to jointly open the front air outlet. Based on the at least two switch doors 700 jointly opening the front air outlet, the switch door 700 located at the lowermost part is further arranged to be able to open and close the lower air outlet, that is, based on the at least two switch doors 700 (which can be that the at least two switch doors 700 include the switch door 700 located at the lowermost part, or can be that the at least two switch doors 700 do not include the switch door 700 located at the lowermost part) jointly opening the front air outlet, the switch door 700 located at the lowermost part can open the lower air outlet or can close the lower air outlet.

[0036] In some examples, as shown in

[0037] In some examples, as shown in Figures 8 to 12As 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 the plurality of 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 plurality of switch doors 700 collectively closing the front air outlet, the adjacent end portions of the adjacent switch doors 700 are sealingly abutted, and the other end portions of the plurality of switch doors 700 are sealingly abutted with the first annular mating surface 114, so that the plurality of switch doors 700 can completely close the front air outlet. Based on the lowermost switch door 700 closing the lower air outlet, the end portions of the lowermost switch door 700 are sealingly abutted with the second annular mating surface 115, so that the lowermost switch door 700 can completely close the front air outlet.

[0038] In some example embodiments, as shown in Figures 1 to 7 、 Figures 11 to 13 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 is swingably arranged at the front air outlet 112, and 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 Figure 1 and Figure 2 Based on the first switch door 200 being in the second position and the second switch door 300 being in the fourth position, the second switch door 300 opens the lower air outlet 113 and collectively closes the front air outlet 112 with the first switch door 200. As shown in Figure 3 、 Figure 4 and Figure 6 Based on the first switch door 200 being in the first position and the second switch door 300 being in the third position, the second switch door 300 closes the lower air outlet 113 and collectively opens the front air outlet 112 with the first switch door 200.

[0039] 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 towards the front of the main body 100, and the second switch door 300 closes the lower air outlet 113, so that the second switch door 300 will not condense due to air leakage at the lower air outlet 113. That is, the air conditioner combined with the engineering panel 600 can realize blowing hot air and cold air to the front, so as to reduce the air blowing blind area, reduce the temperature difference between different areas in the room, improve the user's comfort of blowing hot air, and provide a better user experience.

[0040] In some examples, as shown in Figure 5 and Figure 7 The second switch door 300 also has a fifth position. When the first switch door 200 is in the first position and the second switch door 300 is in the fifth position, the second switch door 300 opens the lower air outlet 113 and the front air outlet 112 together with the first switch door 200. This scheme can realize air blowing at the front air outlet 112 and the lower air outlet 113 at the same time, so as to better reduce the air blowing blind area and the temperature difference between different areas in the room, and provide a better user experience.

[0041] One scheme is to set a swingable switch door between the indoor heat exchanger and the front air outlet. The switch door realizes closing any one of the front air outlet and the lower air outlet by position switching. However, the action process of the switch door occupies a large space in the front-rear direction, and the distance between the indoor heat exchanger and the front air outlet in the front-rear direction needs to be increased, that is, the size of the air conditioner in the front-rear direction needs to be increased, which does not meet the current popular installation requirement of 450mm air conditioner in the indoor ceiling. In addition, the periphery of the switch door and the mouth wall of the front air outlet and the mouth wall of the lower air outlet all need to reserve a swing cooperation gap, and the swing cooperation gap will produce whistling and condensation due to air leakage.

[0042] In order to solve the problem of increasing the size of the air conditioner in the front-rear direction caused by adding the 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 swing matching gap needs to be reserved between the periphery of the first switch door and the inner circumferential surface of the front air outlet, and a swing matching gap also needs to be reserved between the periphery of the second switch door and the inner circumferential surface 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 swing matching gap between the periphery of the first switch door and the inner circumferential surface of the front air outlet will cause whistling 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 swing matching gap between the periphery of the second switch door and the inner circumferential surface of the lower air outlet will cause whistling and condensation due to air leakage.

[0043] In some embodiments, 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, 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-rear 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, the air duct 110 is provided with a heat exchanger 500 and a fan 400, the lower air outlet 113 in the front-rear direction is located between the front air outlet 112 and the heat exchanger 500, and the fan 400 is located on the rear side of the heat exchanger 500. Among them, the heat exchanger 500 is set to a bent shape, such as a V-shaped heat exchanger, a U-shaped heat exchanger or a C-shaped heat exchanger.

[0044] In an embodiment, the heat exchanger 500 is set to a V-shaped heat exchanger, the lower part of the V-shaped heat exchanger is inclined forward from bottom to top, and the upper part of the V-shaped heat exchanger is inclined backward from bottom to top, so that the V-shaped heat exchanger can avoid the swing trajectory of the first switch door 200 and the swing trajectory of the second switch door 300 at the same time. This solution ensures that 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 without increasing the distance between the heat exchanger 500 and the front air outlet 112, and the action process of the first switch door 200 and the second switch door 300 will not be interfered by the heat exchanger 500, so that the size of the air conditioner in the front-rear direction does not need to be increased, and the layout of the air conditioner in the front-rear direction is 450mm.

[0045] Further, as shown in Figures 1 to 4 , Figure 11 and Figure 12As shown, the mouth wall of the front air outlet 112 has a first annular matching surface 114 facing the inside of the air duct 110, the mouth wall of the lower air outlet 113 has a second annular matching surface 115 facing the inside of the air duct 110, and the first and second switch doors 200 and 300 are located on the side of the first and second annular matching surfaces 114 and 115 facing the inside of the air duct. When the first switch door 200 is in the second position and the second switch door 300 is in the fourth position, the adjacent ends of the first and second switch doors 200 and 300 are sealingly abutted, and the other ends of the first and second switch doors 200 and 300 are sealingly abutted with the first annular matching surface 114, thereby realizing that the first and second switch doors 200 and 300 jointly close the front air outlet 112. Thus, during the air outlet process of the lower air outlet 113, no whistling and condensation will occur between the first and second switch doors 200 and 300 and the mouth wall of the front air outlet 112 due to air leakage. Moreover, only during the air outlet process of the lower air outlet 113, the lap joint of the adjacent ends of the first and second switch doors 200 and 300 is pressed by the wind pressure of the air beam blown by the first and second switch doors 200 and 300 inside the air duct 110, and the periphery of the first and second switch doors 200 and 300 is pressed by the wind pressure on the first annular matching surface 250, so that the first and second switch doors 200 and 300 close the front air outlet 112 more effectively. When the first switch door 200 is in the first position and the second switch door 300 is in the third position, the ends of the second switch door 300 are sealingly abutted with the second annular matching surface 115, thereby realizing that the second switch door 300 closes the lower air outlet 113. Thus, during the air outlet process of the front air outlet 112, no whistling and condensation will occur between the second switch door 300 and the mouth wall of the lower air outlet 113 due to air leakage. Moreover, only during the air outlet process of the front air outlet 112, the second switch door 300 is pressed by the wind pressure of the air beam blown by the second switch door 300 inside the air duct 110 on the second annular matching surface 260, so that the second switch door 300 closes the lower air outlet 113 more effectively.

[0046] Wherein, the adjacent parts of the first and second annular matching surfaces 114 and 115 are smoothly connected to form a concave cylindrical curved surface. Figure 2 and Figure 7 As shown, the rear part of the mouth wall of the lower air outlet 113 is protruded 116 inside the air duct 100, the second annular matching 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 extending upwardly and rearwardly. Wherein, the size of the protrusion 116 in the up-down direction is 15mm~30mm, and the size of the lower air outlet 113 in the front-rear direction is 40mm~80mm. It can be, for example, Figures 1 to 13As shown, the upper part of the rear inner side of the lower air outlet 113 is an arc surface extending forward from top to bottom, the dimension of the upper end of the lower air outlet 113 in the front-rear direction is W2, the dimension of the lower end of the lower air outlet 113 in the front-rear direction is W1, W1 is 40mm~70mm, W2=W1+5mm). When the cold air is discharged from the lower air outlet 113, the air guide curved surface 117 and the arc surface can guide the cold air to completely fill the lower air outlet 113, avoiding the backflow of external air from the rear position of the port wall of the lower air outlet 113 to the inside of the air duct 100, thereby causing condensation at the rear position of the port wall of the lower air outlet 113.

[0047] Further, as shown in Figure 5 and Figure 7 The lower part of the first annular matching surface 114 is provided with a second hinge part 1171, and the end of the second switch door 300 close to the lower part of the first annular matching surface 114 is provided with a second hinge matching part 310, the second hinge part 1171 is hingedly connected with the second hinge matching part 310, so that the second switch door 300 is swingably arranged at the front air outlet 112. Based on the fourth position of the second switch door 300, the lower end of the second switch door 300 is in sealing abutment with the lower part of the first annular matching surface 114, and the upper end of the second switch door 300 is in sealing abutment with 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 are overlapped and sealed, and the periphery of the combined structure of the first switch door 200 and the second switch door 300 is in sealing abutment with the first annular matching surface 114 to jointly close the front air outlet 112. Based on the third position of the second switch door 300, the end of the second switch door 300 away from the second hinge matching part 310 is in sealing abutment with the front part of the second annular matching surface 115, and the rear end of the second switch door 300 is in sealing abutment with the rear part of the second annular matching surface 115, that is, the periphery of the second switch door 300 is in sealing abutment with the second annular matching 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 port wall of the front air outlet 112, a sealing sponge is arranged between the lower end of the second switch door 300 and the lower port wall of the front air outlet 112 for sealing.

[0048] In an embodiment, as shown in Figure 4 and Figure 5As shown, the upper portion of the first annular matching surface 114 is provided with a first hinge portion 118, and one end of the first switch door 200 adjacent to the upper portion of the first annular matching surface 114 is provided with a first hinge matching portion 210, and the first hinge portion 118 is hingedly connected with the first hinge matching portion 210. Based on the first switch door 200 being in the second position, the upper end of the first switch door 200 is in sealing abutment with the upper portion of the first annular matching surface 114, and the lower end of the first switch door 200 is in sealing abutment with 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 are lap-sealed (a sealing sponge can be added here to improve the sealing effect when lapping), and the periphery of the combined structure of the first switch door 200 and the second switch door 300 is in sealing abutment with the first annular matching 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 hinge matching portion 210 is in abutment with 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 is in abutment 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 arranged between the upper end of the first switch door 200 and the upper wall of the front air outlet 112 for sealing.

[0049] In another embodiment, as shown in Figure 6 and Figure 7 As shown, the portion between the upper portion of the first annular matching surface 114 and the lower portion of the first annular matching surface 114 is provided with a first hinge portion 119, and one end of the first switch door 200 away from the upper portion of the first annular matching surface 114 is provided with a first hinge matching portion 220, and the first hinge portion 119 is hingedly connected with the first hinge matching 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 hinge matching portion 220 is in sealing abutment with the upper end of the second switch door 300 in the fourth position, and the upper end of the first switch door 200 is in sealing abutment with the upper portion of the first annular matching surface 114, that is, the adjacent ends of the second switch door 300 and the first switch door 200 are lap-sealed, and the periphery of the combined structure of the first switch door 200 and the second switch door 300 is in sealing abutment with the first annular matching 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 both the upper portion of the first annular matching surface 114 and the lower portion of the first annular matching surface 114 in the air duct 110, at which time the air flow from the front air outlet 112 is blown out on both the upper side and the lower side of the first switch door 200, at which time the first switch door 200 also has a guiding effect on the blown air flow.

[0050] In some embodiments, as shown in Figure 5As shown, the front air outlet 112 has a size A of 80mm-150mm in the up-down direction, the lower air outlet 113 has a size B of 40mm-80mm in the front-rear direction, the second switch door 300 in the fourth position has a size C of 35mm-110mm in the up-down direction, the first switch door 200 in the second position has a size D of 30mm-80mm in the up-down direction, and the size E between the heat exchanger 500 and the lower air outlet 113 in the front-rear direction is not greater than 30mm. In this scheme, the lower air outlet 113 will not cause air backflow and condensation during the cold air outlet process. If the size of the lower air outlet 113 in the front-rear direction is too large, the lower air outlet 113 will cause air backflow and condensation during the cold air outlet process. If the size of the lower air outlet 113 in the front-rear direction is too small, the air outlet effect of the lower air outlet 113 is poor.

[0051] As shown in Figure 1 and Figure 3 , the air inlet 111 is located at the rear of the lower side wall of the main body 100; or as shown in Figure 2 and Figure 4 , the air inlet 111 is located at the rear side wall of the main body 100 and the like; all of the above can achieve the purpose of the present application, and the purpose does not deviate from the design idea of the present application, and will not be repeated here, and all should be within the protection scope of the present application.

[0052] The control method of the air conditioner provided by the embodiment of the present application comprises: obtaining an air outlet instruction of the air conditioner; if the air outlet instruction is a second air outlet instruction, controlling the multiple switch doors to jointly close the front air outlet 112; if the air outlet instruction is a first air outlet instruction, controlling the switch door at the lowermost position to close the lower air outlet 113.

[0053] The multiple switch doors jointly close the front air outlet 112, and the lower air outlet 113 is in an open state, at which time air can be blown from the lower air outlet 113 towards the front side 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 cause condensation at the front air outlet 112. The switch door at the lowermost position closes the lower air outlet 113, and the front air outlet 112 is at least partially in an open state, at which time air can be blown from the front air outlet 112 towards the front side of the main body 100, and the switch door at the lowermost position closes the lower air outlet 113, so that the switch door at the lowermost position will not cause condensation at the lower air outlet 113. That is, the air conditioner cooperated with the engineering panel can realize sending hot air and air cooling to the front, and can also realize sending hot air and cold air 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 in blowing hot air, and the user experience is better.

[0054] In some examples, based on the air outlet instruction being the first air outlet instruction, the method further includes controlling the at least one other swing door to open the front air outlet 112, so that the front air outlet 112 can better perform air outlet.

[0055] In some embodiments, as shown in Figure 14 the step of controlling the at least one other swing door to open the front air outlet 112 includes controlling the first swing door 200 to swing to the first position.

[0056] In some embodiments, as shown in Figure 14 the step of controlling the plurality of swing doors to jointly close the front air outlet 112 includes controlling the first swing door 200 to swing to the second position and controlling the second swing door 300 to swing to the fourth position. As shown in Figure 14 the step of controlling the swing door located at the lowermost position to close the lower air outlet 113 includes controlling the second swing door 300 to swing to the third position.

[0057] The air conditioner, the first swing door 200 is controlled to swing to the second position, the second swing door 300 is controlled to swing to the fourth position, so that the second swing door 300 opens the lower air outlet 113, and jointly closes the front air outlet 112 with the first swing door 200, at this time, it can be used for heating mode to blow hot air to the indoor from the lower air outlet 113, realize hot air fast landing; the first swing door 200 is controlled to swing to the first position, the second swing door 300 is controlled to swing to the third position, so that the second swing door 300 closes the lower air outlet 113, and jointly opens the front air outlet 112 with the first swing door 200, at this time, it can be used for cooling mode to blow cold air to the indoor from the front air outlet 112, avoid cold air direct blowing person.

[0058] In some examples, the control method further includes: based on the air outlet instruction being the third air outlet instruction, controlling the at least two swing doors to jointly open the front air outlet 112 and controlling the swing door located at the lowermost position to open the lower air outlet 113. It can be that the at least two swing doors include the swing door located at the lowermost position; or it can be that the at least two swing doors do not include the swing door located at the lowermost position; the above can all achieve the purpose of the application, the purpose does not deviate from the design idea of the application, and details are not repeated here, which all belong to the protection scope of the application.

[0059] In some examples, as shown in Figure 14 the step of controlling the at least two swing doors to jointly open the front air outlet 112 and controlling the swing door located at the lowermost position to open the lower air outlet 113 includes controlling the first swing door 200 to swing to the first position and controlling the second swing door 300 to swing to the fifth position.

[0060] 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 jointly opens the front air outlet 112 with the first switch door 200, and air is blown out from the front air outlet 112 and the lower air outlet 113 at the same time, so that the air supply blind area and the temperature difference between different indoor areas can be better reduced, and the user experience is improved.

[0061] To prevent the second switch door 300 in the fifth position from condensation on the surface when cooling, the second switch door 300 can be controlled to reciprocate in a small range relative to the fifth position.

[0062] In some embodiments, based on the air outlet instruction being the second air outlet instruction, the multiple switch doors are further controlled to jointly close the front air outlet 112 for a set time, and then the switch door at the lowermost position is controlled to close the lower air outlet 113.

[0063] In some embodiments, based on the air outlet instruction being the second air outlet instruction, the multiple switch doors are further controlled to jointly close the front air outlet 112 for a set time, and then at least one other switch door (not including the switch door at the lowermost position) is controlled to open the front air outlet 112.

[0064] In some embodiments, as shown in Figure 15 The step of controlling the switch door at the lowermost position 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.

[0065] 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 according to needs, such as 1 min, 3 min, 5 min or 10 min, etc., all of which can achieve the purpose of the present application, and the design idea is not deviated from the present application, which will not be described here again, and all of which should belong to the protection scope of the present application.

[0066] 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 blows cold air from the lower air outlet 113 to the indoor first, so that the cold air quickly falls to the ground to achieve rapid cooling of the lower area of the indoor, and after the set time, the air conditioner blows cold air from the front air outlet 112 to the indoor, avoiding the cold air blowing directly to the person.

[0067] The control method of the air conditioner provided in the embodiments of the present application comprises: obtaining an operation mode of the air conditioner, and obtaining an air outlet instruction of the air conditioner issued by a user; based on the operation mode being a heating mode and the air outlet instruction of the air conditioner issued by the user being obtained, then: based on the air outlet instruction being a second air outlet instruction, controlling the plurality of switch doors to jointly close the front air outlet 112; based on the air outlet instruction being a first air outlet instruction, controlling the switch door located at the lowermost position to close the lower air outlet 113.

[0068] That is, in the heating mode, the user can select to blow hot air from the lower air outlet 113 according to needs, and the user can also select to blow hot air from the front air outlet 112 according to needs.

[0069] In some examples, based on the air outlet instruction being the first air outlet instruction, the method further includes controlling at least one other switch door to open the front air outlet 112, so that the front air outlet 112 can better blow air.

[0070] In some embodiments, as shown in Figure 17 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. As shown in Figure 17 controlling the switch door located at the lowermost position to close the lower air outlet 113 includes controlling the second switch door 300 to swing to the third position. As shown in Figure 17 controlling the 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.

[0071] In some examples, the control method further includes, based on the operation mode being the heating mode and the air outlet instruction of the air conditioner issued by the user not being obtained, controlling the plurality of switch doors to jointly close the front air outlet 112.

[0072] In some embodiments, as shown in Figure 16 and Figure 17 controlling the plurality of 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.

[0073] That is, in the heating mode, by default, the first switch door 200 swings to the second position, the second switch door 300 swings to the fourth position, and hot air is blown from the lower air outlet 113. Of course, the user can also select the air outlet mode by himself by sending an air outlet instruction to the air conditioner.

[0074] In some examples, the control method further includes: based on the air outlet instruction being a third air outlet instruction, controlling the at least two swing doors to jointly open the front air outlet 112, and controlling the swing door located at the lowermost position to open the lower air outlet 113.

[0075] In the heating mode, the user can select the lower air outlet 113 and the front air outlet 112 to simultaneously blow hot air according to needs.

[0076] In some embodiments, as shown in FIG. 1, the step of controlling the at least two swing doors to jointly open the front air outlet 112 and controlling the swing door located at the lowermost position to open the lower air outlet 113 includes: controlling the first swing door 200 to swing to a first position, and controlling the second swing door 300 to swing to a fifth position. Figure 17

[0077] In an embodiment, a control method of an air conditioner includes: Figure 17 obtaining a running mode of the air conditioner, and obtaining an air outlet instruction of the air conditioner issued by a user; based on the running mode being a heating mode and no air outlet instruction of the air conditioner issued by the user being obtained, controlling the first swing door 200 to swing to a second position, and controlling the second swing door 300 to swing to a fourth position; based on the running mode being the heating mode and the air outlet instruction of the air conditioner issued by the user being obtained, then: based on the air outlet instruction being a first air outlet instruction, controlling the first swing door 200 to swing to the first position, and controlling the second swing door 300 to swing to a third position; based on the air outlet instruction being a second air outlet instruction, controlling the first swing door 200 to swing to the second position, and controlling the second swing door 300 to swing to the fourth position; based on the air outlet instruction being a third air outlet instruction, controlling the first swing door 200 to swing to the first position, and controlling the second swing door 300 to swing to a fifth position.

[0078] The control method of the air conditioner provided by the embodiment of the present application includes: obtaining a running mode of the air conditioner, and obtaining an air outlet instruction of the air conditioner issued by a user; based on the running mode being a cooling mode and the air outlet instruction of the air conditioner issued by the user being obtained, then: based on the air outlet instruction being a second air outlet instruction, controlling the plurality of swing doors to jointly close the front air outlet 112, and after a set time, controlling the swing door located at the lowermost position to close the lower air outlet 113; based on the air outlet instruction being a first air outlet instruction, controlling the swing door located at the lowermost position to close the lower air outlet 113.

[0079] ​​In the cooling mode, the user can select the first air outlet 113 to cool quickly and then the front air outlet 112 to avoid the cold air blowing directly on the user.

[0080] In some examples, based on the air outlet instruction being the first air outlet instruction, the method further includes controlling at least one other switch door to open the front air outlet 112, so that the front air outlet 112 can better perform air outlet.

[0081] In some embodiments, as shown in Figure 17 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. Figure 17 controlling the second switch door 300 to swing to the third position. Figure 17 controlling the first switch door 200 to swing to the first position.

[0082] That is, as shown in Figure 17 based on the air outlet instruction being the first air outlet instruction, 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 instruction being the second air outlet instruction, 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 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.

[0083] In some examples, the control method further includes: based on the operation mode being the cooling mode and no air outlet instruction of the air conditioner being obtained from the user, controlling the multiple switch doors to collectively close the front air outlet 112, and after a set time, controlling the switch door located at the lowermost position to close the lower air outlet 113.

[0084] In the cooling mode, the user can select the first air outlet 113 to cool quickly and then the front air outlet 112 to avoid the cold air blowing directly on the user.

[0085] In some embodiments, after the multiple switch doors collectively close the front air outlet 112, at least one other switch door is further controlled to open the front air outlet 112, so that the front air outlet 112 can better perform air outlet.

[0086] In some embodiments, as shown in Figure 16 and Figure 17As 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 lowermost position 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.

[0087] In the cooling mode, by default, 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. Of course, the user can also select the air outlet mode by himself by sending an air outlet instruction to the air conditioner.

[0088] In some examples, the control method further includes: based on the air outlet instruction being a 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 lowermost position to open the lower air outlet 113.

[0089] In the cooling mode, the user can select the lower air outlet 113 and the front air outlet 112 to simultaneously blow cold air according to needs.

[0090] In some examples, as shown in Figure 17 The step of controlling at least two switch doors to jointly open the front air outlet 112 and controlling the switch door located at the lowermost position to open the lower air outlet 113 includes: 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.

[0091] In an embodiment, as shown in Figure 17 A control method of an air conditioner includes: Obtaining an operation mode of the air conditioner, and obtaining an air outlet instruction of the air conditioner sent by a user; Based on the operation mode being a cooling mode and no air outlet instruction of the air conditioner sent by the user being obtained, 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, and after a set time, controlling the first switch door 200 to swing to the first position, and controlling the second switch door 300 to swing to the third position; Based on the operation mode being the cooling mode and the air outlet instruction of the air conditioner sent by the user being obtained, then: Based on the air outlet instruction being a first air outlet instruction, controlling the first switch door 200 to swing to the first position, and controlling the second switch door 300 to swing to the third position; When the air outlet instruction is the second air outlet instruction, 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. When the air outlet instruction is the third air outlet instruction, 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.

[0092] In summary, the technical scheme provided by the embodiments of the present application can make the first switch door be in the second position and the second switch door be in the fourth position, so that 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 to the front of the main body, and the second switch door closes the lower air outlet, so that the second switch door does not condense at the lower air outlet. That is, the air conditioner can realize blowing hot air and blowing cold air to the front, so as to reduce the air blowing blind area, reduce the temperature difference between different areas in the room, improve the user's comfort of blowing hot air, and provide a better user experience.

[0093] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0094] In addition, the terms "first", "second", and the like are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second", and the like can explicitly or implicitly include at least one of the features.

[0095] In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly and specifically limited.

[0096] In the present application, unless specifically defined otherwise, the terms "mounting", "connected", "connecting", "fixed", "fixedly connected" and the like should be construed in a broad sense as encompassing a direct connection between two elements and / or an indirect connection between two elements through an intermediate medium, and can be mechanical or electrical, and can be permanent or releasable, unless otherwise specifically noted. The specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0097] In the present application, unless specifically defined otherwise, the terms "on", "under", "above" and "under" of a first feature to a second feature can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "on", "above" and "above" the second feature can be the first feature directly above or obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "under", "below" and "below" the second feature can be the first feature directly below or obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0098] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the skilled person can combine and combine different embodiments or examples described in the present application and the features of different embodiments or examples, without contradiction.

[0099] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. An air conditioner, characterized in that, include: The main body has an internal air duct, which has an air inlet, a front air outlet and a lower air outlet. The front air outlet is located on the front side wall of the main body, and the lower air outlet is located on the lower side wall of the main body. The opening wall of the front air outlet has a first annular mating surface. A heat exchanger is disposed within 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 Multiple switches are configured to jointly close the front air outlet. The lowest switch is configured to close the lower air outlet. Since the multiple switches jointly close the front air outlet, the adjacent ends of adjacent switches abut against each other, and the other ends of the multiple switches abut against the first annular mating surface.

2. The air conditioner according to claim 1, characterized in that, The lower air outlet has a second annular mating surface on its wall. 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 abuts against the second annular mating surface.

3. The air conditioner according to claim 2, characterized in that, The lower air outlet is located at the front of the lower side wall of the main body. The first annular mating surface and the second annular mating surface both face 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.

4. The air conditioner according to any one of claims 1 to 3, characterized in that, At least two of the aforementioned doors are configured to open the front air outlet together, and based on the fact that at least two of the aforementioned doors open the front air outlet together, the lowermost door is also configured to open and close the lower air outlet.

5. The air conditioner according to claim 3, characterized in that, Multiple switches are arranged sequentially in the vertical direction and can all be swung at the front air outlet. Since the multiple switches together close the front air outlet, the lower air outlet is in the open state.

6. The air conditioner according to claim 5, characterized in that, 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; 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. The adjacent ends of the first switch door and the second switch door abut against each other, and the other ends of the first switch door and the second switch door abut against the first annular mating surface. Based on the first switch door being in the first position and the second switch door being 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, and each end of the second switch door abuts against the second annular mating surface.

7. The air conditioner according to claim 6, characterized in that, 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.

8. The air conditioner according to claim 7, characterized in that, 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.

9. The air conditioner according to any one of claims 6 to 8, characterized in that, 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 abuts against the lower part of the first annular mating surface, and the upper end of the second switch door abuts against 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 abuts against the front part of the second annular mating surface, and the rear end of the second switch door abuts against the rear part of the second annular mating surface.

10. The air conditioner according to any one of claims 6 to 8, characterized in that, 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 abuts against the upper part of the first annular mating surface, and the lower part of the first switch door 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.

11. The air conditioner according to any one of claims 6 to 8, characterized in that, 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 abuts against the upper end of the second switch door in the fourth position, and the upper end of the first switch door 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.

12. A control method for an air conditioner as described in any one of claims 1 to 11, characterized in that, include: 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.

13. The control method according to claim 12, characterized in that, 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.

14. The control method according to claim 12 or 13, characterized in that, 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.

15. The control method according to claim 14, characterized in that, The step of controlling multiple of the opening and closing doors to jointly 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.

16. The control method according to claim 12 or 13, characterized in that, Also includes: 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.

17. The control method according to claim 16, characterized in that, 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.

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