Door opening and closing device and air conditioner

Abstract

The door opening and closing device comprises an opening and closing door, a ventilation plate and a driving assembly, the opening and closing door is movably arranged on a shell so as to be switched between an opening position for opening an air outlet and a closing position for closing the air outlet, and the ventilation plate is movably arranged on the shell so as to drive the opening and closing door to be switched between an opening position for opening the air outlet and a closing position for closing the air outlet. The opening and closing door is arranged in the shell to be switched between the shielding position for shielding the air outlet and the avoiding position for avoiding the air outlet, a plurality of micropores are formed in the ventilation plate, the ventilation plate and the opening and closing door are sequentially arranged in the air outlet direction, the opening and closing door is located on the downstream of the ventilation plate, and the driving assembly is connected with the shell and provided with a first driving part and a second driving part; the first driving part is connected with the opening and closing door so as to drive the opening and closing door to be switched between the closing position and the opening position, and the second driving part is connected with the ventilation plate so as to drive the ventilation plate to be switched between the shielding position and the avoiding position. Therefore, the air volume in the wind-feeling-free mode is larger, the use experience can be improved, and the working stability of the door opening and closing device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to a door opening and closing device and an air conditioner. Background Art

[0002] In the related art, the windless mode of the air conditioner requires a hole in the air guide plate to be realized. After the air guide plate is closed vertically, it switches to the windless mode. The air volume in the windless mode is small, and the user experience is poor. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems in the prior art. To this end, one purpose of the present invention is to provide a door opening and closing device that has a larger air outlet area in a no-wind mode and provides a better user experience.

[0004] The present application further proposes an air conditioner using the above-mentioned door opening and closing device.

[0005] In the first aspect, the present application proposes a switching door device, comprising: a switching door, a ventilation plate and a drive assembly, wherein the switching door is movably arranged on a shell to switch between an open position for opening the air outlet and a closed position for closing the air outlet, and the ventilation plate is movably arranged on the shell to switch between a blocking position for blocking the air outlet and a avoidance position for avoiding the air outlet, and a plurality of micropores are arranged on the ventilation plate, and the ventilation plate and the switching door are arranged in sequence in the air outlet direction, and the switching door is located downstream of the ventilation plate, and the drive assembly is connected to the shell, and the drive assembly has a first drive part and a second drive part, the first drive part is connected to the switching door to drive the switching door to switch between the closed position and the open position, and the second drive part is connected to the ventilation plate to drive the ventilation plate to switch between the blocking position and the avoidance position.

[0006] According to the opening and closing door device of the embodiment of the present application, on the one hand, the ventilation plate and the opening and closing door are arranged in sequence in the air outlet direction, and the windless mode is realized by the microporous structure on the ventilation plate, which can enrich the air supply scenario in the windless mode, and the air volume in the windless mode is larger, which can improve the user experience; on the other hand, the opening and closing door and the ventilation plate are driven respectively by the first drive unit and the second drive unit, which can reduce the control difficulty of the opening and closing door device and improve the working stability and reliability of the opening and closing door device.

[0007] According to some embodiments of the present application, the first driving unit includes: a first power source, a first input end and a first output end, the first power source is connected to the first input end, the first output end is power-connected to the first input end, and the first output end is connected to the switch door; the second driving unit includes: a second power source, a second input end and a second output end, the second power source is connected to the second input end, the second output end is power-connected to the second input end, and the second output end is connected to the ventilation plate.

[0008] In some embodiments, the driving assembly further includes: a shell, and the first power source and the second power source are respectively connected to two sides of the shell.

[0009] Furthermore, the shell includes: a mounting base and a first cover body and a second cover body located on both sides of the mounting base, the first power source is installed on the first cover body, the second power source is installed on the second cover body, a first space is defined between the first cover body and the mounting base, a second space is defined between the second cover body and the mounting base, the first input end and the first output end are arranged in the first space, and the second input end and the second output end are arranged in the second space.

[0010] Furthermore, a first guide portion is provided in the first space, and the first guide portion is guided and matched with the first matching portion on the first output end; a second guide portion is provided in the second space, and the second guide portion is guided and matched with the second matching portion on the second output end.

[0011] According to some embodiments of the present application, a gap distance between the switch door and the ventilation plate in the air outlet direction is L1, and satisfies 2mm≤L1≤7mm.

[0012] In some embodiments, the switch door includes: a first body and a first flange plate located at both ends of the length of the first body, the first drive unit is connected to the first flange plate, and the ventilation plate includes: a second body and a second flange plate located at both ends of the length of the second body, and the second drive unit is connected to the second flange plate.

[0013] According to some embodiments of the present application, there are two drive assemblies, which are located at both ends of the length of the switch door.

[0014] In a second aspect, the present application provides an air conditioner, comprising: a shell, an air outlet assembly and a switch door device, wherein a avoidance cavity is defined between the shell and the air outlet assembly, the shell has an air outlet, the air outlet assembly is connected to the air outlet, the switch door device is connected to the shell and / or the air outlet assembly, and is located in the avoidance cavity when the switch door is in a closed position and the ventilation plate is in a avoidance position.

[0015] Furthermore, the area of ​​the air outlet is S1, the area of ​​the ventilation plate is S2, and they satisfy: 0.8S1≤S2≤S1.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 is a schematic diagram of a door opening and closing device according to an embodiment of the present application;

[0019] Figure 2 is a schematic diagram of a drive assembly according to an embodiment of the present application;

[0020] Figure 3 is a perspective schematic diagram of an air conditioner according to an embodiment of the present application;

[0021] Figure 4 is a schematic front view of an air conditioner according to an embodiment of the present application (with the switch door in the closed position);

[0022] Figure 5 yes Figure 4 Schematic cross-sectional view of midline AA;

[0023] Figure 6 is a schematic front view of an air conditioner according to an embodiment of the present application (with the switch door in the open position);

[0024] Figure 7 yes Figure 6 Schematic cross-sectional view of midline BB;

[0025] Figure 8 is a schematic front view of an air conditioner according to an embodiment of the present application (the ventilation plate is in a shielding position);

[0026] Figure 9 yes Figure 8 Schematic cross-sectional view of the midline CC;

[0027] Figure 10 It is a schematic diagram of the coordination between the door opening and closing device and the housing according to an embodiment of the present application.

[0028] Reference numerals:

[0029] Air conditioner 1000,

[0030] Door opening and closing device 100, housing 200, air outlet assembly 300,

[0031] Opening door 10, first body 11, first flange plate 12,

[0032] Ventilation plate 20, second body 21, second flange plate 22,

[0033] Drive assembly 30, first drive unit 31, first power source 311, first input end 312, first output end 313, second drive unit 32, second power source 321, second input end 322, second output end 323, housing 33, mounting base 331, first cover 332, second cover 333,

[0034] First guide part a, second guide part b, avoidance cavity c. DETAILED DESCRIPTION

[0035] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0036] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first" and "second" in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary-secondary relationship.

[0037] References to "embodiments" in this application mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments.

[0038] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "attached" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0039] The term "and / or" in this application simply describes an association between related objects, indicating that three possible relationships exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects are in an "or" relationship.

[0040] In the embodiments of this application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components in different embodiments are omitted. It should be understood that the thickness, length, width, and other dimensions of the various components in the embodiments of this application, as well as the overall thickness, length, width, and other dimensions of the integrated device shown in the drawings are merely illustrative and should not constitute any limitation on this application.

[0041] In the description of the present invention, 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 to 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 invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0042] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact via another feature therebetween.

[0043] In the description of the present invention, a first feature “above”, “above” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0044] The term "plurality" used in this application refers to two or more (including two).

[0045] Reference below Figures 1-10 A door opening and closing device 100 and an air conditioner 1000 according to an embodiment of the present invention are described.

[0046] like Figure 1 As shown, the present application proposes a door opening and closing device 100 , comprising: a door opening and closing device 10 , a ventilation plate 20 and a drive assembly 30 .

[0047] The switch door 10 is movably provided on the housing 200 to switch between an open position for opening the air outlet and a closed position for closing the air outlet (eg Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown), the ventilation plate 20 is movably provided on the housing 200 to switch between a blocking position for blocking the air outlet and a avoiding position for avoiding the air outlet (as shown). Figure 6 、 Figure 7 、 Figure 8 and Figure 9 shown).

[0048] Specifically, the switch door 10 is movable relative to the outer shell 200, such as: the switch door 10 can slide, rotate, etc. relative to the outer shell 200 to switch between the open position and the closed position. When the user needs to use the air conditioner 1000, the switch door 10 can be switched to the open position, and when the air conditioner 1000 needs to be turned off, the switch door 10 can be switched to the closed position. At the same time, a ventilation plate 20 is provided, and a plurality of micropores are provided on the ventilation plate 20. The ventilation plate 20 and the switch door 10 are arranged in sequence in the air outlet direction, and the switch door 10 is located downstream of the ventilation plate 20, so that the ventilation plate 20 can realize the windless mode of the air conditioner 1000 through the micropores on the ventilation plate 20, that is, the air is discharged through the micropores to refine the large airflow flowing out of the outlet into multiple tiny airflows, so as to reduce the intuitive airflow blowing feeling and provide a windless usage experience.

[0049] It is understandable that in the prior art, a microporous structure is provided on the air guide plate of the air outlet component 300 to achieve a windless mode, that is, micropores are provided on the air guide plate of the air conditioner 1000 for achieving wind sweeping, and when the air guide plate is rotated until the axis of the micropores is parallel to the air outlet direction, windless air supply can be achieved, but the air guide plate needs to be switched to a fixed angle to achieve windless air supply, and the windless mode cannot be combined with wind sweeping, and only windless air supply in a fixed direction can be achieved, and the air outlet area in the windless mode is small, the total airflow in the windless mode is small, and the user experience is poor.

[0050] Based on this, the present application arranges the ventilation plate 20 and the switch door 10 in sequence in the air outlet direction, and micropores are formed on the ventilation plate 20 for windless air supply, so that when the switch door 10 is in the open position, the ventilation plate 20 can be switched to the avoidance position for conventional air supply, such as: fixed direction air supply, left and right sweeping air, up and down sweeping air, etc., and the ventilation plate 20 can also be switched to the blocking position for windless air supply, and during the windless air supply process, the wind guide plate can be adjusted in angle according to needs, so that the wind guide plate and the ventilation plate 20 can cooperate to achieve fixed direction windless air supply, left and right windless sweeping air, up and down windless sweeping air, etc., enrich the air supply scenario of the air conditioner 1000, and make the air volume in the windless mode larger, thereby improving the user experience.

[0051] Furthermore, if Figure 2 As shown, the drive assembly 30 is connected to the housing 200, and the drive assembly 30 has a first drive part 31 and a second drive part 32. The first drive part 31 is connected to the switch door 10 to drive the switch door 10 to switch between a closed position and an open position, and the second drive part 32 is connected to the ventilation plate 20 to drive the ventilation plate 20 to switch between a blocking position and a avoidance position.

[0052] That is to say, the drive assembly 30 may include two drive parts (i.e., a first drive part 31 and a second drive part 32), and the first drive part 31 and the second drive part 32 are respectively used to drive the switch door 10 and the ventilation plate 20, so that the switching of the switch door 10 between the open position and the closed position and the switching of the ventilation plate 20 between the blocking position and the avoidance position are simpler and more convenient, and the switching process of the two can be realized by their respective corresponding drive parts, which can simplify the control logic, reduce the probability of interference between the switch door 10 and the ventilation plate 20, and improve the working stability and reliability of the switch door device 100.

[0053] It should be pointed out that the opening and closing door 10 and the ventilation plate 20 can both extend in the height direction, the outer shell 200 can have at least one air outlet, and each air outlet can be provided with the opening and closing door device 100 of the embodiment of the present application. The opening and closing door device 100 of the present application is not only suitable for the air conditioner 1000, but also suitable for air handling equipment such as fans and air coolers for generating airflow.

[0054] According to the door opening and closing device 100 of the embodiment of the present application, on the one hand, the ventilation plate 20 and the door opening and closing 10 are sequentially arranged in the air outlet direction, and the windless mode is realized by the microporous structure on the ventilation plate 20, which can enrich the air supply scenario in the windless mode, and the air volume in the windless mode is larger, which can improve the user experience; on the other hand, the door opening and closing 10 and the ventilation plate 20 are driven respectively by the first drive unit 31 and the second drive unit 32, which can reduce the control difficulty of the door opening and closing device 100 and improve the working stability and reliability of the door opening and closing device 100.

[0055] In addition, it should be pointed out that in the prior art, a microporous structure is provided on the wind guide plate. When the wind guide plate is sweeping the air, part of the airflow will pass through the micropores on the wind guide plate, resulting in a poor sweeping effect, and in the no-wind mode, sweeping cannot be achieved. While the present application can achieve sweeping, the airflow after the wind guide plate completes the guidance can pass through the ventilation plate 20 to achieve the no-wind mode, and the sweeping effects under no-wind sweeping and conventional sweeping can remain stable.

[0056] like Figure 2 As shown, according to some embodiments of the present application, the first driving unit 31 includes: a first power source 311, a first input end 312 and a first output end 313, the first power source 311 is connected to the first input end 312, the first output end 313 is power-connected to the first input end 312, and the first output end 313 is connected to the switch door 10; the second driving unit 32 includes: a second power source 321, a second input end 322 and a second output end 323, the second power source 321 is connected to the second input end 322, the second output end 323 is power-connected to the second input end 322, and the second output end 323 is connected to the ventilation plate 20.

[0057] Specifically, the first power source 311 can be a rotating motor, and the corresponding first input end 312 and the first output end 313 can be constructed as a gear and a rack respectively, the gear is connected to the motor shaft of the rotating motor, and the rack is connected to the switch door 10 constructed as a sliding door. The first power source 311 can also be constructed as a linear motor, and the output rod of the linear motor is directly connected to the switch door 10. The second power source 321 can be a rotating motor, and the corresponding second input end 322 and the second output end 323 can be constructed as a gear and a rack respectively, the gear is connected to the motor shaft of the rotating motor, and the rack is connected to the ventilation plate 20 constructed as a sliding plate. The second power source 321 can also be constructed as a linear motor, and the output rod of the linear motor is directly connected to the ventilation plate 20.

[0058] In other embodiments, the ventilation plate 20 and the switch door 10 may also be constructed as a flip structure, that is, they can be rotated relative to the housing 200 to achieve position switching, which is not further limited in this application.

[0059] like Figure 2 As shown, in some embodiments, the driving assembly 30 further includes: a housing 33 , and a first power source 311 and a second power source 321 are respectively connected to two sides of the housing 33 .

[0060] That is, the first input end 312 and the first output end 313 , the second input end 322 and the second output end 323 can realize power transmission in the housing 33 , and the first power source 311 and the second power source 321 are arranged on both sides of the housing 33 .

[0061] In this way, the first power source 311 and the second power source 321 can make full use of the size space inside the switch door 10 and the ventilation plate 20, and reduce the difficulty of arranging the first power source 311 and the second power source 321 on the shell 33, reduce the probability of interference between the two, and improve the driving stability and reliability of the first drive unit 31 and the second drive unit 32.

[0062] See also Figure 2 As shown, further, the shell 33 includes: a mounting base 331 and a first cover body 332 and a second cover body 333 located on both sides of the mounting base 331, the first power source 311 is installed on the first cover body 332, and the second power source 321 is installed on the second cover body 333, a first space is defined between the first cover body 332 and the mounting base 331, a second space is defined between the second cover body 333 and the mounting base 331, the first input end 312 and the first output end 313 are arranged in the first space, and the second input end 322 and the second output end 323 are arranged in the second space.

[0063] That is to say, the first input end 312 and the first output end 313 realize power transmission in the first space, and the second input end 322 and the second output end 323 realize power transmission in the second space. The power transmission group of the first driving part 31 and the power transmission group of the second driving part 32 can be separated by the mounting seat 331, that is, they are respectively located on both sides of the mounting seat 331, so as to reduce the probability of interference between the first driving part 31 and the second driving part 32, improve the driving stability of the first driving part 31 and the second driving part 32, and at the same time reduce the influence of foreign matter on the power transmission of the first driving part 31 and the second driving part 32, thereby improving the power transmission stability.

[0064] Exemplarily, the first input end 312 is a first gear, the first output end 313 is a first ring gear meshed with the first gear, the second input end 322 is a second gear, the second output end 323 is a second ring gear meshed with the second gear, the first ring gear is connected to the switch door 10, the first gear is connected to the first power source 311, the first ring gear and the second ring gear are both constructed as arc-shaped ring gears, the mounting seat 331 is constructed as an arc-shaped plate, the first cover body 332 and the second cover body 333 are also constructed as arc-shaped plates, and are respectively covered on the upper and lower sides of the mounting seat 331 to respectively define the first space and the second space, the first space and the second space can be formed into relatively closed spaces to reduce the probability of dust, foreign matter, etc. entering the first space and the second space, thereby reducing the probability of damage to the first drive part 31 and the second drive part 32, improving transmission reliability, reducing the probability of abnormal noise when the switch door 10 or the ventilation plate 20 moves, and improving the user experience.

[0065] In some embodiments, a first guide portion a is provided in the first space, and the first guide portion a guides and cooperates with the first matching portion on the first output end 313 ; a second guide portion b is provided in the second space, and the second guide portion b guides and cooperates with the second matching portion on the second output end 323 .

[0066] For example, Figure 2 As shown, the first guide portion a can be formed as a guide groove, and a guide column extending into the guide groove is provided on the corresponding first rack. The second guide portion b can also be formed as a guide groove, and a guide column extending into the guide groove is provided on the corresponding second rack.

[0067] Thus, the movement guidance of the first output end 313 is achieved through the first guide part a, and the movement guidance of the second output end 323 is achieved through the second guide part b, thereby improving the movement smoothness and reliability of the opening and closing door 10 and the ventilation plate 20, and further reducing the probability of abnormal working noises of the opening and closing door 10 and the ventilation plate 20.

[0068] It can be understood that the drive component 30 of the embodiment of the present application adopts a dual-chamber structure in which the mounting seat 331 cooperates with the first cover body 332 and the second cover body 333, and the first power source 311 and the second power source 321 are arranged on both sides of the shell 33, which can make full use of the space, reduce the size of the shell 33, and improve the space occupied by the drive component 30.

[0069] like Figure 7 As shown, according to some embodiments of the present application, the gap distance between the switch door 10 and the ventilation plate 20 in the air outlet direction is L1, and satisfies 2mm≤L1≤7mm.

[0070] Exemplarily, the gap distance between the switch door 10 and the ventilation plate 20 in the air outlet direction is 2 mm, 3 mm, 4 mm, 5 mm, 6 mm or 7 mm, etc.

[0071] In this way, on the one hand, the gap distance between the switch door 10 and the ventilation plate 20 is not less than 2 mm, which can avoid the probability of interference between the switch door 10 and the ventilation plate 20 during movement, so as to improve the movement smoothness of the switch door 10 and the ventilation plate 20. On the other hand, the gap distance between the switch door 10 and the ventilation plate 20 is not greater than 7 mm, so that the space occupied by the switch door device 100 is more reasonable, the space occupied by the air outlet is smaller, and the overall space occupied by the air conditioner 1000 is smaller.

[0072] Combine Figure 1 and Figure 10As shown, in some embodiments, the switch door 10 includes: a first body 11 and a first flange plate 12 located at both ends of the length of the first body 11, the first drive part 31 is connected to the first flange plate 12, and the ventilation plate 20 includes: a second body 21 and a second flange plate 22 located at both ends of the length of the second body 21, and the second drive part 32 is connected to the second flange plate 22.

[0073] Specifically, two first flange plates 12 are provided at both ends of the first body 11, and two second flange plates 22 are provided at both ends of the second body 21. The first flange plate 12 is connected to the first rack, and the second flange plate 22 is connected to the second rack, so that the connection stability and reliability between the first drive part 31 and the switch door 10, and the second drive part 32 and the ventilation plate 20 are higher, and the first flange plate 12 can be bent toward the air guide plate compared to the first body 11, and the second flange plate 22 can be bent toward the air guide plate compared to the second body 21, which can also improve the aesthetics of the ventilation plate 20 and the switch door 10 in the air outlet area, giving the air conditioner 1000 a more advanced usage experience.

[0074] exist Figure 10 In the illustrated embodiment, according to some embodiments of the present application, there are two drive assemblies 30 , which are located at both ends of the length of the switch door 10 .

[0075] That is to say, there can be two driving components 30, which drive the switch door 10 and the ventilation plate 20 at both ends of the switch door 10 respectively, so that the movement of the switch door 10 during the switching process between the open position and the closed position is smoother, and the movement of the ventilation plate 20 during the switching process between the blocking position and the avoidance position is smoother.

[0076] The present application provides an air conditioner 1000, comprising: a shell 200, an air outlet assembly 300 and a door opening and closing device 100, wherein an avoidance cavity c is defined between the shell 200 and the air outlet assembly 300, the shell 200 has an air outlet, the air outlet assembly 300 is connected to the air outlet, the door opening and closing device 100 is connected to the shell 200 and / or the air outlet assembly 300, and is located in the avoidance cavity c when the door opening and closing door 10 is in a closed position and the ventilation plate 20 is in an avoidance position.

[0077] Specifically, see Figure 5 When the switch door 10 is in the closed position and the ventilation plate 20 is in the blocking position, both are located outside the avoidance cavity c. At this time, the air conditioner 1000 is in the closed state. Figure 7 As shown, when the switch door 10 is in the open position and the ventilation plate 20 is in the avoidance position, the switch door 10 and the ventilation plate 20 are both located in the avoidance cavity c. At this time, the air conditioner 1000 is in the normal air outlet mode, as shown in FIG. Figure 9As shown, when the switch door 10 is in the closed position and the ventilation plate 20 is in the blocking position, the switch door 10 is in the avoidance cavity c, and the air conditioner 1000 is in the windless mode.

[0078] According to the air conditioner 1000 of the embodiment of the present application, on the one hand, through the setting of the above-mentioned opening and closing door device 100, not only can the air outlet scenes in the no-wind mode be enriched, but the air outlet volume in the no-wind mode is also larger, and the user experience is better; on the other hand, the ventilation plate 20 and the opening and closing door 10 can be avoided through the avoidance cavity c, so that the overall appearance of the air conditioner 1000 in the closed state, normal air outlet mode and no-wind mode is more beautiful, and the setting of the avoidance cavity c can also further improve the compactness of the spatial layout of the air conditioner 1000 and reduce the space occupied by the air conditioner 1000.

[0079] Combine Figure 6 and Figure 8 As shown, the area of ​​the air outlet is S1, the area of ​​the ventilation plate 20 is S2, and they satisfy: 0.8S1≤S2≤S1.

[0080] For example, the area of ​​the ventilation plate 20 may be 0.8S1, 0.85S1, 0.9S1, 0.95S1, S1, etc.

[0081] In this way, the area of ​​the ventilation plate 20 can be more reasonable, avoiding the area of ​​the ventilation plate 20 being too small, so that the ventilation plate 20 can better block the air outlet, thereby increasing the air output in the windless mode, improving air leakage, and improving the user experience. It can also avoid the area of ​​the ventilation plate 20 being too large, thereby reducing the difficulty of integrated assembly of the ventilation plate 20 and the switch door 10, and reducing material costs.

[0082] Other structures and operations of the door opening and closing device 100 and the air conditioner 1000 according to the embodiment of the present invention are well known to ordinary technicians in this field and will not be repeated here.

[0083] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0084] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A door opening and closing device, characterized in that: include: A switch door is movably provided on the housing to switch between an open position for opening the air outlet and a closed position for closing the air outlet; a ventilation plate movably disposed on the housing to switch between a blocking position for blocking the air outlet and a avoiding position for avoiding the air outlet, the ventilation plate being provided with a plurality of micro-holes, the ventilation plate and the switch door being disposed sequentially in the air outlet direction, with the switch door being located downstream of the ventilation plate; A drive assembly is connected to the housing, and the drive assembly has a first drive part and a second drive part. The first drive part is connected to the switch door to drive the switch door to switch between the closed position and the open position. The second drive part is connected to the ventilation plate to drive the ventilation plate to switch between the blocking position and the avoidance position.

2. The door opening and closing device according to claim 1, characterized in that: The first driving unit includes: a first power source, a first input end and a first output end, the first power source is connected to the first input end, the first output end is connected to the first input end in power, and the first output end is connected to the switch door; the second driving unit includes: a second power source, a second input end and a second output end, the second power source is connected to the second input end, the second output end is connected to the second input end in power, and the second output end is connected to the ventilation plate.

3. The door opening and closing device according to claim 2, characterized in that: The driving assembly further includes a housing, and the first power source and the second power source are respectively connected to two sides of the housing.

4. The door opening and closing device according to claim 3, characterized in that: The shell includes: a mounting base and a first cover and a second cover located on both sides of the mounting base, the first power source is installed on the first cover, and the second power source is installed on the second cover. A first space is defined between the first cover and the mounting base, and a second space is defined between the second cover and the mounting base. The first input end and the first output end are arranged in the first space, and the second input end and the second output end are arranged in the second space.

5. The door opening and closing device according to claim 4, characterized in that: A first guide portion is provided in the first space, and the first guide portion is guided and matched with the first matching portion on the first output end. A second guide portion is provided in the second space, and the second guide portion is guided and matched with the second matching portion on the second output end.

6. The door opening and closing device according to claim 1, characterized in that: The gap distance between the switch door and the ventilation plate in the air outlet direction is L1, and satisfies 2mm≤L1≤7mm.

7. The door opening and closing device according to claim 1, characterized in that: The switch door includes: a first body and first flange plates located at both ends of the length of the first body, the first drive part is connected to the first flange plates, and the ventilation plate includes: a second body and second flange plates located at both ends of the length of the second body, the second drive part is connected to the second flange plates.

8. The door opening and closing device according to any one of claims 1 to 7, characterized in that: There are two drive assemblies, which are located at both ends of the length of the switch door.

9. An air conditioner, characterized in that: include: A housing and an air outlet assembly, wherein a relief cavity is defined between the housing and the air outlet assembly, the housing has an air outlet, and the air outlet assembly is in communication with the air outlet; The switch door device according to any one of claims 1 to 8 is connected to the housing and / or the air outlet assembly, and is located in the avoidance cavity when the switch door is in the closed position and the ventilation plate is in the avoidance position.

10. The air conditioner according to claim 9, characterized in that The area of ​​the air outlet is S1, the area of ​​the ventilation plate is S2, and they satisfy: 0.8S1≤S2≤S1.

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