Air door device, reversible air supply air conditioner and control method of reversible air supply air conditioner

Abstract

The invention relates to an air door device, a reversible air supply air conditioner and a control method of the reversible air supply air conditioner, relates to the technical field of air conditioning equipment, and aims to solve the problem that the indoor air environment is polluted during reverse air outlet due to the arrangement of a filter screen in a reversible air supply indoor unit. The air door device comprises an air opening piece, a filtering assembly and an air blocking assembly. The air opening piece is provided with an opening. The filtering assembly is connected with the air opening piece and is configured to move and switch between a first position and a second position. The filtering assembly is located in the opening at the first position and used for purifying air flowing through the air opening piece. The filter assembly is located outside the opening at the second position. The air blocking assembly is arranged on one side of the filtering assembly in the air flowing direction. And the air blocking assembly is configured to prevent air from flowing through the filtering assembly when the filtering assembly is located at the second position. When the filter assembly is at the first position, air flows through the opening through the filter assembly.

Description

Technical Field

[0001] This application relates to the field of air conditioning equipment technology, and in particular to a damper device, a reversible air supply air conditioner and its control method. Background Technology

[0002] Because air density decreases as temperature rises, cold air sinks and hot air rises under the influence of gravity. Based on this, by designing indoor air conditioning units with different air outlets, the effect of cold air exiting from the side and hot air exiting from the bottom can be achieved. This allows the heat exchange airflow blown out by the indoor unit to flow through most of the indoor space, thereby improving the cooling and heating efficiency.

[0003] Taking a ducted air conditioner as an example, the reverse airflow inside the unit achieves heat exchange between the two air vents, resulting in cool air exiting to the side and hot air exiting downwards. Since a filter is installed between the two air vents to purify the circulating air, taking the downward airflow in heating mode as an example (which represents forward airflow), the reverse airflow inside the ducted unit in cooling mode blows off impurities adsorbed on one side of the filter and carries these impurities through the side vents into the room, thus polluting the indoor air environment. Summary of the Invention

[0004] This application provides a damper device, a reversible air supply air conditioner, and a control method thereof, aiming to solve the problem that the filter in the indoor unit of a reversible air supply unit will pollute the indoor air environment when the air is discharged in the opposite direction.

[0005] In a first aspect, embodiments of this application provide an air damper device, including an air outlet, a filter assembly, and a baffle assembly, wherein the air outlet has an opening. The filter assembly is connected to the air outlet and configured to move and switch between a first position and a second position. In the first position, the filter assembly is located within the opening for purifying air flowing through the air outlet. In the second position, the filter assembly is located outside the opening. The baffle assembly is disposed on one side of the filter assembly along the airflow direction. The baffle assembly is configured such that: when the filter assembly is in the second position, the baffle assembly prevents air from flowing through the filter assembly; and when the filter assembly is in the first position, air flows through the filter assembly and through the opening.

[0006] In some implementations, when the filter assembly is in the second position, the windbreak assembly is disposed between the filter assembly and the opening.

[0007] In some embodiments, the windbreak assembly includes a plurality of grilles disposed on one side of the filter assembly along the airflow direction, and the plurality of grilles are configured to have a first state and a second state.

[0008] When the filter assembly is in the first position, multiple grid plates move to switch to the first state so that there is a gap between the multiple grid plates.

[0009] When the filter assembly is in the second position, multiple grid plates move to switch to the second state to reduce the gap between the multiple grid plates.

[0010] In some embodiments, the filter assembly includes a positioning frame, two first side plates, a second side plate, and a filter element. The positioning frame has an air outlet. A first side plate is sequentially connected to each end of the positioning frame along its length, and a second side plate is connected to one end of the positioning frame along its width. The first and second side plates are located on the same side of the air outlet and are connected to form a filter chamber. The filter element is detachably disposed within the filter chamber.

[0011] In some embodiments, on the side of the filter element away from the air outlet, multiple grilles are disposed inside the filter chamber and rotatably connected to two first side plates.

[0012] When multiple grating plates rotate to switch to the first state, gaps are created between the multiple grating plates.

[0013] When multiple grille panels rotate to switch to the second state, they block the side of the filter element away from the air vent.

[0014] In some embodiments, the windbreak assembly includes a drive motor and a transmission component. The drive motor is connected to multiple grille plates via the transmission component, and is used to drive the multiple grille plates to rotate and switch between a first state and a second state.

[0015] In some embodiments, the transmission component includes multiple first gears and second gears. On the side of the first side plate opposite to the filter chamber, one first gear is connected to one end of a grid plate. A drive motor is connected to the second gear, and the second gear meshes with the first gear, for driving the multiple grid plates to rotate and switch between a first state and a second state.

[0016] In some embodiments, there are two drive motors and two second gears, with one drive motor connected to one second gear. There are four first gears and four grille plates, with two first gears meshing with the same second gear.

[0017] In some embodiments, the two ends of the positioning frame along its length are rotatably connected to the air vent component. When the filter assembly rotates to the second position, there is a gap between the end of the positioning frame away from the second side plate along its width and the air vent component. The second side plate is inclined toward the air vent at least at the end away from the positioning frame.

[0018] In some embodiments, the damper device further includes an air guide panel rotatably connected to the air outlet component, which, when the filter assembly is in the first position, is used to block the air inlet side of the air outlet component.

[0019] Secondly, this application provides a reversible air supply air conditioner, including an indoor unit. The indoor unit includes a casing and the damper device mentioned in the first aspect. The casing is provided with a side air outlet, a mounting cavity and a down air outlet connected in sequence, and the damper device is provided at least at the side air outlet.

[0020] Thirdly, embodiments of this application provide a control method for a reversible air-supply air conditioner, used to control the reversible air-supply air conditioner in the second aspect, the control method including: Receive mode switching command.

[0021] If the mode switching command is to switch to heating mode, control the filter component to move to the first position and control the reversible air conditioner to switch to heating mode.

[0022] If the mode switching command is to switch to cooling mode, control the filter component to move to the second position and control the reversible air conditioner to switch to cooling mode.

[0023] The technical solutions provided in this application have the following advantages compared with the prior art: The wind deflector is configured to prevent airflow through the filter assembly when the filter assembly is in its second position. Taking an example where the wind deflector comprises multiple grilles, when the filter assembly moves to its second position outside the opening, the wind deflector is driven into a closed state to block the inner or outer sides of the filter assembly, preventing reverse-flowing air from passing through it. For instance, if the wind deflector is a rotating grille, it can rotate to a position with no or minimal gaps between adjacent grilles, thus forming a physical barrier that effectively prevents airflow from directly blowing onto the filter assembly when it is not in operation, preventing dust adhering to the filter assembly from being carried into the room by the airflow.

[0024] If the wind deflector is located on the outside of the filter assembly, it can block the air outlet on the outside of the filter assembly when the wind deflector is switched to wind deflection mode, thereby reducing or preventing reverse airflow from passing through the filter assembly. If the wind deflector is located on the inside of the filter assembly, it can minimize reverse airflow from passing through the filter assembly when the wind deflector is switched to wind deflection mode, and the reverse airflow can be guided to the outlet position through the inner wall of the wind deflector.

[0025] When the filter assembly is in the first position, the air deflector assembly can switch to a position that isolates multiple baffles from each other, so that air can flow through the gap between two adjacent baffles. That is, the circulating air can flow smoothly through the filter assembly and the air outlet, so that the air in the cooling or heating mode can circulate smoothly and be filtered and purified by the filter assembly.

[0026] In this way, the damper device, by incorporating a wind-blocking component, prevents airflow through the filter component when the filter component is in a second position outside the opening. This effectively avoids the airflow reversing through the filter component in certain air supply modes, preventing dust adsorbed on the filter component from being blown back into the room, significantly improving indoor air quality and enhancing the user experience. Attached Figure Description

[0027] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0030] Figure 1 This application provides a schematic diagram of the internal structure of the indoor unit of a reversible air supply air conditioner. Figure 2 This is a three-dimensional structural diagram of a damper device provided in an embodiment of this application; Figure 3 for Figure 2 A three-dimensional structural diagram of a damper device in which the filter component is in the second position; Figure 4 for Figure 3 A cross-sectional view of the damper device shown; Figure 5 for Figure 4 A cross-sectional view of the windshield assembly shown in a first state; Figure 6 for Figure 5 An exploded structural diagram of the filter assembly and windshield assembly shown. Figure 7 This application provides an electrical connection diagram for a reversible air supply air conditioner. Figure 8 This is a schematic diagram of the meshing connection of a transmission component provided in an embodiment of this application; Figure 9 This is a connection diagram of the control module of the reversible air supply air conditioner provided in an embodiment of this application.

[0031] Explanation of reference numerals in the attached figures: 100. Indoor unit; 110. Unit casing; 111. Side air vent; 112. Mounting cavity; 113. Down air vent; 120. Indoor fan; 130. Indoor heat exchanger; 200. Damper device; 210. Air outlet component; 211. Opening; 220. Filter assembly; 221. Positioning frame; 222. First side plate; 223. Second side plate; 224. Filter element; 225. Air outlet; 226. Filter chamber; 227. First drive component; 230. Windbreak assembly; 231. Grille plate; 232. Drive motor; 233. Transmission component; 2331. First gear; 2332. Second gear; 240. Air guide panel; 250. Second drive component; 300. Control module; 310. Processor; 320. Communication interface; 330. Memory; 340. Communication bus. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0034] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0035] Because air density decreases as temperature rises, cold air sinks and hot air rises under the influence of gravity. Based on this, by designing indoor air conditioning units with different air outlets, the effect of cold air exiting from the side and hot air exiting from the bottom can be achieved. This allows the heat exchange airflow blown out by the indoor unit to flow through most of the indoor space, thereby improving the cooling and heating efficiency.

[0036] like Figure 1 As shown, taking an indoor unit 100 as an example of a ducted air conditioner, the casing 110 of the indoor unit 100 is provided with a side air vent 111, a mounting cavity 112, and a down air vent 113 connected in sequence. An indoor fan 120 and an indoor heat exchanger 130 can be installed in the mounting cavity 112. This allows the indoor fan 120 to drive air to flow sequentially through the down air vent 113, the indoor heat exchanger 130, and the side air vent 111 in cooling mode, and the indoor fan 120 to drive air to flow sequentially through the side air vent 111, the indoor heat exchanger 130, and the down air vent 113 in heating mode.

[0037] By configuring the airflow inside the ducted air conditioner to flow in the opposite direction, a heat exchange effect is achieved between the two air vents, resulting in cold air exiting to the side and hot air exiting downwards. Because a filter is installed between the two air vents to filter and purify the circulating air, downward airflow is achieved during heating operation (e.g., Figure 1 The dashed line shown represents the direction of airflow (for example, the airflow direction is forward). In cooling mode, the air inside the duct unit flows in the opposite direction (e.g., ...). Figure 1 The solid line indicating the airflow direction will blow off the impurities adsorbed on one side of the filter and carry them from the downwind vent 113 into the room, thus polluting the indoor air environment.

[0038] Based on this, please refer to Figures 2 to 9This application provides a damper device, a reversible air supply air conditioner and its control method, which aims to solve the problem that the filter in the indoor unit of the reversible air supply will pollute the indoor air environment when the air is discharged in reverse.

[0039] like Figure 2 and Figure 3 As shown, this application provides a damper device 200, including an air vent 210, a filter assembly 220, and a baffle assembly 230. The air vent 210 has an opening 211. The filter assembly 220 is connected to the air vent 210 and configured to move and switch between a first position and a second position. Figure 2 As shown, the filter assembly 220 is located within the opening 211 at the first position, and is used to purify the air flowing through the air vent 210. Figure 3 As shown, the filter assembly 220 is located outside the opening 211 at the second position. A wind deflector assembly 230 is disposed on one side of the filter assembly 220 along the airflow direction. The wind deflector assembly 230 is configured such that, when the filter assembly 220 is in the second position, it prevents air from flowing through the filter assembly 220. When the filter assembly 220 is in the first position, air flows through the filter assembly 220 and through the opening 211.

[0040] The air vent 210 can be a bracket structure or a frame structure, which is usually made of metal or engineering plastic and is fixedly installed at the side air vent 111 or the bottom air vent 113 of the indoor unit 100 for positioning and connection between the damper device 200 and the housing 110.

[0041] The air vent component 210 can be an independent structure, allowing the damper device 200 to be flexibly configured as an independent component. Alternatively, the air vent component 210 can be set as part of the housing 110 within the side air vent 111 or the down air vent 113, for positioning and mounting other components of the damper device 200. This allows air to circulate between the side air vent 111 and the down air vent 113, and the circulating air can be filtered and purified by the filter assembly 220 at the opening 211.

[0042] The filter assembly 220 can be a frame with a replaceable filter, which is mechanically connected to the air vent 210. This connection can employ a sliding guide rail, a rotary bearing, or a hinge, allowing the filter assembly 220 to move and switch between two preset positions. For example, the filter assembly 220 can translate along a straight track or rotate around an axis to switch between a first and a second position; this is not limited.

[0043] When the filter assembly 220 is in the first position, its main body is positioned inside the opening 211 of the air vent 210. In this state, the filter screen inside the filter assembly 220 can filter and purify the air flowing through the air vent 210, removing dust and particulate matter to improve the quality of the circulating air.

[0044] When the filter assembly 220 is in the second position, its main body is positioned outside the opening 211 of the air vent 210. In this state, the filter assembly 220 does not obstruct the airflow through the opening 211, allowing air to circulate freely.

[0045] The wind deflector assembly 230 is positioned on one side of the filter assembly 220 along the airflow direction. This wind deflector assembly 230 can be multiple movable plates, such as one or more rotatable single-piece baffles, or a retractable curtain. Taking the side of the filter assembly 220 facing the mounting cavity 112 as the inner side and the side facing away from the mounting cavity 112 as the outer side, along the airflow direction, the wind deflector assembly 230 can be positioned either inside or outside the filter assembly 220 to control the airflow.

[0046] Specifically, the wind deflector 230 is configured to prevent airflow through the filter assembly 220 when the filter assembly 220 is in the second position. Taking an example where the wind deflector 230 includes multiple grilles, when the filter assembly 220 moves to the second position outside the opening 211, the wind deflector 230 is driven into a closed state to block the inner or outer sides of the filter assembly 220, preventing reverse-flowing air from passing through the filter assembly. For example, if the wind deflector 230 is a rotating grille, it can rotate to a position where there is no gap or a small gap between adjacent grilles, thus forming a physical barrier that effectively blocks airflow from directly blowing onto the filter assembly 220 when it is not in operation, preventing dust adhering to the filter assembly 220 from being carried into the room by the airflow.

[0047] It should be noted that if the wind deflector 230 is located on the outside of the filter assembly 220, when the wind deflector 230 switches to wind deflection mode, it can block the air outlet on the outside of the filter assembly 220, thereby reducing or preventing reverse airflow from passing through the filter assembly 220. If the wind deflector 230 is located on the inside of the filter assembly 220, when the wind deflector 230 switches to wind deflection mode, it can minimize the reverse airflow from passing through the filter assembly 220, and the reverse airflow can be guided to the blowing position through the inner wall of the wind deflector 230.

[0048] When the filter assembly 220 is in the first position, the wind deflector assembly 230 can be switched to a position state that isolates multiple baffles from each other, so that air can flow through the gap between two adjacent baffles, that is, the circulating air can flow smoothly through the filter assembly 220 and the opening 211, so that the air in the cooling or heating mode can circulate smoothly and be filtered and purified by the filter assembly 220.

[0049] Thus, by setting up the wind deflector 230, and when the filter assembly 220 is in a second position outside the opening 211, the wind deflector 230 prevents air from flowing through the filter assembly 220. This effectively prevents the outlet airflow from flowing backward through the filter assembly 220 in a specific air supply mode, thus avoiding the dust adsorbed on the filter assembly 220 from being blown back into the room, significantly improving indoor air quality and enhancing the user experience.

[0050] In some implementations, such as Figure 3 and Figure 4 As shown, when the filter assembly 220 is in the second position, the wind deflector 230 is disposed between the filter assembly 220 and the opening 211. That is, the wind deflector 230 is disposed inside the filter assembly 220.

[0051] For example, when the filter assembly 220 is moved out of the opening 211 and is in the second position, the wind deflector assembly 230 is positioned in the area between the filter assembly 220 and the opening 211, i.e., the wind deflector assembly 230 faces inward toward the opening 211. The wind deflector assembly 230 can be a translatable, rotatable, or foldable plate structure, a set of closable grilles, or a rotatable door. When the filter assembly 220 is moved out of the opening 211, these structures move into place through corresponding mechanical movements (such as translation, rotation, or folding), forming a physical barrier between the filter assembly 220 and the opening 211, thereby effectively blocking airflow to prevent reverse-flowing air from being blown into the filter assembly 220.

[0052] This not only minimizes the inflow of air from the inside of the filter assembly 220, ensuring the efficiency and reliability of the wind deflector 230 in preventing air from flowing through the filter assembly 220, but also prevents the reverse-flowing air from blowing off particles and other impurities blocked on the outside of the filter assembly 220 to pollute the indoor air, so that the reversible air-discharge air conditioner can maintain good indoor air quality even when discharging air in the opposite direction.

[0053] Taking the wind deflector 230 located inside the filter assembly 220 as an example, the wind deflector 230 can be a fixed structure. Since the mounting cavity 112 and the filter assembly 220 are under negative pressure at this time, the wind deflector 230 is installed at a specific angle so that the air flowing in the forward direction can be drawn into the mounting cavity 112 through the filter assembly 220 under the action of air pressure, thereby effectively filtering and purifying the heating circulating air.

[0054] In cooling mode, when the circulating air flows in the opposite direction through the opening 211, because the opening 211 is under high pressure, the high-pressure air cannot be blown towards the filter component 220 by the specific angle interval of the baffle component 230. Instead, it will flow into the room from the upper part of the outside of the opening 211 under the guidance of the baffle component 230, so that the room has a waterfall-like cooling effect and will not blow away the debris at the filter component 220 to pollute the indoor air.

[0055] In addition, such as Figure 4 and Figure 5 As shown, the wind deflector assembly 230 includes a plurality of grille plates 231, which are disposed on one side of the filter assembly 220 along the airflow direction. The plurality of grille plates 231 are configured to have Figure 5 The first state shown and Figure 4 The second state is shown.

[0056] When filter component 220 is in Figure 2 When at the first position shown, the multiple grid plates 231 move and switch to Figure 5 The first state shown is such that there are gaps between the multiple grid plates 231.

[0057] When filter component 220 is in Figure 4 When in the second position shown, the multiple grid plates 231 move to switch to the second state to reduce the gap between the multiple grid plates 231.

[0058] The wind deflector assembly 230 includes multiple grille panels 231. These grille panels 231 can be independent plate-like structures, such as slats, blades, or louvers, and their materials can be selected according to the actual application requirements, such as metal, plastic, or composite materials, to balance strength, weight, and corrosion resistance. By employing multiple grille panels 231 instead of a single monolithic structure, a basis for flexible airflow control is provided.

[0059] Multiple grilles 231 are arranged on one side of the filter assembly 220 along the airflow direction, such as multiple grilles 231 arranged on the inner side of the filter assembly 220. These grilles 231 can be used to adjust the air resistance of the filter assembly 220, thereby controlling whether circulating air can flow through the filter assembly 220.

[0060] When the filter assembly 220 is in the first position, i.e., within the opening 211, the multiple grille plates 231 move and switch to the first state, creating gaps between them. In the first state, the grille plates 231 can be adjusted to leave sufficiently large channels between them, for example, by rotation, translation, or unfolding, allowing air to flow smoothly through these gaps. This allows forward-flowing air to pass through the filter assembly 220, filtering and intercepting impurities and other pollutants in the air to the outside of the filter assembly 220. This gap formation ensures that the wind deflector 230 does not significantly obstruct normal airflow when the filter assembly 220 is operating.

[0061] When the filter assembly 220 is in the second position, that is, outside the opening 211, the multiple grille plates 231 move to switch to the second state to reduce the gaps between them. In the second state, the grille plates 231 can be adjusted to be close together, partially overlap, or completely closed, thereby significantly reducing or even eliminating the gaps between them. This state effectively blocks the reverse flow of air from the opening 211 from flowing back through the filter assembly 220, thus preventing impurities and other pollutants intercepted on the outside of the filter assembly 220 from being blown into the room.

[0062] Thus, when the filter assembly 220 is in the first position (e.g., when the air conditioner is in heating mode), the grille 231 switches to the first state, creating a gap to ensure smooth airflow and thus guarantee filtration efficiency. When the filter assembly 220 is in the second position (e.g., when the air conditioner is in cooling mode), the grille 231 switches to the second state to reduce the gap, effectively blocking airflow through the filter assembly 220 and preventing impurities and other pollutants intercepted on the outside of the filter assembly from being blown back into the room, which helps maintain and improve indoor air quality.

[0063] In some implementations, such as Figure 5 and Figure 6 As shown, the filter assembly 220 includes a positioning frame 221, two first side plates 222, a second side plate 223, and a filter element 224. The positioning frame 221 has an air outlet 225. A first side plate 222 is sequentially connected to each end of the positioning frame 221 along its length, and a second side plate 223 is connected to one end of the positioning frame 221 along its width. The first side plates 222 and the second side plates 223 are located on the same side of the air outlet 225 and are connected to form a filter cavity 226. The filter element 224 is detachably disposed within the filter cavity 226.

[0064] The positioning frame 221 is the main structure of the filter assembly 220, and its interior has an air passage 225 adapted to the opening 211. This air passage 225 is the channel through which air flows through the filter assembly 220. The positioning frame 221 is typically made of a robust material, such as plastic or metal, to provide sufficient structural support and ensure the stability of the filter assembly 220 when moving between a first position and a second position. The design of the air passage 225 should ensure that air can pass through smoothly and match the size and shape of the filter element 224.

[0065] The first side plate 222 is connected to both ends of the positioning frame 221 along its length, and the second side plate is connected to one end of the positioning frame 221 along its width, so that the two first side plates 222 and one second side plate 223 are connected to form a filter chamber 226. Along the width direction, on the side of the filter chamber 226 opposite to the second side plate 223, a filter element 224 is inserted and installed. An insertion slot extending along the width direction allows the filter element 224 to be inserted into the filter chamber 226 to filter the indoor air flowing in from the air outlet 225. The first side plate 222, the positioning frame 221, and the second side plate 223 can be connected by screws, clips, welding, or integral molding to ensure the firmness and sealing of the connection.

[0066] The design of the filter chamber 226 should take into account the size and shape of the filter element 224 and provide sufficient space for the installation and removal of the filter element 224. The filter element 224 is the core component for achieving air purification, and may be, for example, a HEPA filter, activated carbon filter, or pre-filter. Its removable feature facilitates daily maintenance and replacement by the user. The removability can be achieved in ways including, but not limited to: a cover or drawer-like structure on one side of the filter chamber 226, in which the filter element 224 is fixed by a slide rail or slot; or the filter element 224 itself is designed with an easy-to-grip handle, allowing for simple installation and removal by pushing, pulling, or rotating.

[0067] A stable and enclosed filter chamber 226 is constructed by setting the positioning frame 221, the first side plate 222, and the second side plate 223, ensuring that the filter element 224 can be firmly fixed in the airflow path during operation, thereby maximizing air purification efficiency. Meanwhile, the detachable design of the filter element 224 greatly improves the maintenance convenience of the damper device 200. When the filter assembly 220 moves to the second position, the user can easily and quickly replace or clean the filter element 224 through the filter chamber 226 without complex tool operations or professional disassembly. This not only extends the service life of the equipment but also reduces maintenance costs and time, significantly improving the user experience.

[0068] It should be noted that on the side of the filter element 224 in the filter chamber 226 that is away from the air outlet 225, multiple grille plates 231 can be rotated or slid to open or close the airflow duct of the filter element 224.

[0069] In some implementations, such as Figure 4 and Figure 5 As shown, on the side of the filter element 224 away from the air outlet 225, multiple grille plates 231 are disposed within the filter cavity 226 and are connected to the two first side plates 222 (as shown). Figure 6 (As shown) Rotary connection. When multiple grid plates 231 rotate to switch to Figure 5 In the first state shown, gaps are created between the multiple grid plates 231. When the multiple grid plates 231 rotate to switch to... Figure 4 In the second state shown, the side of filter 224 away from air outlet 225 is blocked to prevent and isolate the reverse flow of air from filter 224.

[0070] The grid plate 231 can be rotatably connected to the two first side plates 222 at both ends of the filter chamber 226 via a pivot or other means, allowing the grid plate 231 to rotate around its axis, thereby switching its state. This rotatable connection method is compact, easy to control, and provides stable support. When the filter assembly 220 is in... Figure 2 In the first position shown, i.e., the normal operating state, the multiple grille plates 231 rotate and switch to the first state, so that the multiple grille plates 231 have a small angle with the airflow direction or are parallel to the airflow direction. In this state, a sufficient gap is formed between adjacent grille plates 231, allowing air to flow smoothly through the filter element 224 and the grille plates 231, thereby completing the filtration and purification of the circulating air. This gap can be formed by rotating the grille plates 231 to a position approximately parallel to the airflow direction, or by adjusting the tilt angle of the grille plates 231 to control the gap size.

[0071] When filter component 220 is in Figure 4 and Figure 5 When in the second position shown, the grille 231 can be precisely rotated to switch to the second state. At this time, the plane where the grille 231 is located is approximately parallel to the plane where the filter element 224 is located, thereby effectively blocking the side of the filter element 224 away from the air outlet 225 to prevent air from blowing towards the filter element 224. This prevents impurities and other pollutants filtered on the outside of the filter element 224 from being blown into the room, which is beneficial to maintaining and improving indoor air quality.

[0072] In some implementations, such as Figure 7 and Figure 8As shown, the windshield assembly 230 includes a drive motor 232 and a transmission component 233. The drive motor 232 is connected to multiple grille plates 231 (such as...) via the transmission component 233. Figure 6 (As shown) The transmission connection is used to drive multiple grid plates 231 to rotate and switch between the first state and the second state.

[0073] The drive motor 232 can be a stepper motor, a servo motor, or a linear motor, and is used to drive multiple grille plates 231 to switch precisely between the first state and the second state through the transmission component 233.

[0074] The transmission component 233 can be a meshing transmission between the driving gear and the driven gear, or a transmission connection between the transmission belt or rack structure and the transmission wheel, so that the drive motor 232 can transmit power to multiple grid plates 231 through the transmission component 233, thereby driving the multiple grid plates 231 to switch between the first state and the second state.

[0075] By introducing a drive motor 232 and a transmission component 233, the automatic switching and control of multiple grid plates 231 between a first state and a second state can be achieved. The drive motor 232 provides power, which is precisely transmitted to the grid plates 231 through the transmission component 233. While achieving automated adjustment and control, the drive motor 232 can precisely control the rotation angle of multiple grid plates 231, resulting in a high adjustment and switching efficiency.

[0076] In some implementations, such as Figure 8 As shown, the transmission component 233 includes multiple first gears 2331 and second gears 2332. On the side of the first side plate 222 opposite to the filter chamber 226, one first gear 2331 is connected to one end of a grid plate 231. The drive motor 232 is connected to the second gear 2332, and the second gear 2332 is meshed with the first gear 2331, so that the drive motor 232 drives the multiple grid plates 231 to rotate and switch between a first state and a second state.

[0077] For example, such as Figure 7 and Figure 8 As shown, there are two drive motors 232 and two second gears 2332, with one drive motor 232 connected to one second gear 2332. The first gear 2331 and the grille plate 231 (as shown) Figure 6 The number of gears (as shown) is four, with two of the first gears 2331 meshing with the same second gear 2332. This allows a drive motor 232 to drive the two first gears 2331 and the two grille plates 231 to rotate synchronously. During this process, the four grille plates 231 rotate in the same direction as they switch between the first and second states.

[0078] Alternatively, multiple first gears 2331 can be sequentially meshed together, and a drive motor 232 can be meshed with one of the first gears 2331 via a second gear 2332, so that the drive motor 232 can drive the multiple first gears 2331 and the multiple grid plates 231 to rotate. In this case, two adjacent grid plates will have opposite rotation directions during the rotation switching process between the first state and the second state.

[0079] The first gear 2331 and the second gear 2332 can be spur gears, helical gears, or bevel gears, and the specific choice can be optimized according to the required transmission ratio, space constraints, and requirements for noise and transmission smoothness. The first gear 2331 and the second gear 2332 are made of wear-resistant metal materials or high-strength engineering plastics. The first gear 2331 is connected to the grille plate 231 via a splined bearing or pin. The second gear 2332 is usually directly connected to the output shaft of the drive motor 232, for example, by key connection, press fit, or threaded connection.

[0080] Thus, the drive motor 232 can transmit rotational power to each grille plate 231 through a gear transmission mechanism composed of the second gear 2332 and multiple first gears 2331. This gear meshing transmission method ensures that multiple grille plates 231 maintain a high degree of precision during rotation switching, enabling precise control of the rotation angle of the grille plates 231. Especially when the internal space of the filter chamber 226 is limited, the compact gear transmission structure can effectively utilize space and provide a stable mechanical connection, thereby reliably achieving effective sealing or opening of the side of the filter element 224 away from the air outlet 225, significantly improving the operational reliability and stability of the damper device 200.

[0081] In some implementations, such as Figure 2 and Figure 6 As shown, the two ends of the positioning frame 221 along its length are rotatably connected to the air vent component 210. When the filter assembly 220 rotates to switch to... Figure 5 In the second position shown, the positioning frame 221 has a gap between the end of the second side plate 223 away from the second side plate 223 in the width direction and the air outlet 210, so that the main body of the filter assembly 220 is located outside the opening 211. The second side plate 223 is inclined towards the air outlet 225 at least at the end away from the positioning frame 221.

[0082] Taking the end of the positioning frame 221 connected to the second side plate 223 as the lower end as an example, the upper opening of the filter cavity 226 is used for inserting and installing the filter element 224. The two first side plates 222 are provided with insertion slots or guide rails extending in the vertical direction on the inner wall of the filter cavity 226 for detachable connection of the filter element 224.

[0083] At the left and right ends of the positioning frame 221, the lower part is rotatably connected to the air vent 210, so that when the filter assembly 220 is rotated to the second position, there is a gap between its upper end and the opening 211. Taking the damper device 200 installed at the side air vent 111 as an example, in the cooling mode, the above gap allows cold air to flow obliquely upwards to blow towards the top space of the room, so as to form a waterfall-like cooling effect by the cold air sinking away. While improving the uniform distribution of cold air in the room, the closed wind deflector assembly 230 can prevent the cold air from blowing away impurities and other pollutants outside the filter assembly 224, so that the reversible air supply air conditioner in the cooling mode can maintain a high-quality indoor environment.

[0084] During this process, the second side plate 223 located at the lower end of the positioning frame 221 is inclined toward the air outlet 225 (i.e., horizontally outward) at the end away from the positioning frame 221. This can be a chamfered structure, a rounded corner structure, or other inclined setting method, so that the cold air can be effectively guided to reduce resistance as it flows out of the indoor unit through the opening 211, and avoids additional flow resistance of the cold air at the end of the second side plate 223.

[0085] Taking the damper device 200 installed at the side air outlet 111 as an example, Figure 6 As shown, when the filter assembly 220 rotates to the second position, the angle α between the second side plate 223 and the horizontal plane is an obtuse angle. Correspondingly, when the filter assembly 220 rotates to the first position, the angle between the second side plate 223 and the horizontal plane is an acute angle.

[0086] Thus, since the second side panel 223 is tilted towards the air vent 225, in the cooling mode, the angle α between the second side panel 223 and the horizontal plane in the filter assembly 220 in the second position is an obtuse angle, and the entire filter assembly is tilted towards the outside of the indoor unit 100, which can effectively reduce the flow resistance of cold air.

[0087] Based on this, a chamfered or rounded corner structure of a suitable angle can also be provided at the end of the second side plate 223 away from the positioning frame 221, without limitation.

[0088] In some implementations, such as Figure 2 and Figure 3 As shown, the damper device 200 also includes an air guide panel 240, which is rotatably connected to the air outlet component 210. When the filter assembly 220 is in the first position, the air guide panel 240 is used to block the air inlet side of the air outlet component 210.

[0089] The air guide panel 240 is a plate-shaped structure used to guide the direction of airflow. The air guide panel 240 can be made of materials such as metal or plastic. The air guide panel 240 has a grille strip corresponding to the opening, which is used to prevent foreign objects from being sucked into the opening 211, and also for shielding and decorative effect at the opening 211.

[0090] The air guide panel 240 and the air outlet 210 are installed by a rotatable connection. This rotatable connection can be achieved by means of a pin, hinge, rotating bracket, etc., and a locking mechanism can be designed at the rotatable connection to fix the air guide panel 240 in a specific position, thereby allowing the air guide panel 240 to adjust its position or angle under different working conditions.

[0091] When the filter assembly 220 is in the first position, the air guide panel 240 is configured to rotate to block the air inlet side of the vent 210, and can be positioned and connected to the vent 210 by means of plug-in or snap-fit ​​to maintain the current position. When the filter assembly 220 needs to be switched to the second position, the air guide panel 240 needs to be rotated outward first, so that the filter assembly 220 can switch to the outside of the opening 211.

[0092] In some embodiments, such as Figure 7 As shown, the filter assembly 220 also includes a first drive member 227, which is used to drive the filter assembly 220 to rotate and switch between a first position and a second position.

[0093] The first driving component 227 may include a first motor and a first gear set. For example, the first gear set may be a reduction gear set, which can reduce the speed of the first motor and increase the output torque of the first motor, so as to drive the filter component 220 to automatically switch and adjust between the first position and the second position.

[0094] like Figure 7 As shown, the damper device 200 also includes a second drive member 250, which is used to drive the air guide panel 240 (e.g., Figure 2 (As shown) Rotate to switch at opening 211.

[0095] For example, the second drive unit 250 can drive the air guide panel 240 to rotate and switch positions via a linear motor or pneumatic rod. Alternatively, it can drive the air guide panel 240 to rotate and switch positions via a stepper motor, servo motor, and gear set adapter structure.

[0096] It should be noted that, in this embodiment of the application, the damper device 200 can be installed at the side air vent 111 of the indoor unit 100, so that in the heating mode, the air flowing into the installation cavity 112 from the side air vent 111 is filtered by the filter component 220 in the first position, and in the cooling mode, the cold air flowing out from the side air vent 111 is prevented from being blown away by impurities and other pollutants adsorbed on the outer surface of the filter component 220.

[0097] A damper device 200 can also be installed at the lower air vent 113 of the housing 110. In this case, the damper device 200 has its filter component 220 in the first position in the cooling mode to filter the air drawn in from the lower air vent 113, and in the heating mode, the filter component 220 is in the second position to prevent impurities and other pollutants adsorbed on the outer surface of the filter component 220 from being blown away.

[0098] Alternatively, the indoor fan 120 can be configured with two air outlets. One outlet faces the indoor heat exchanger 130 and the side air outlet 111, and is used to blow air towards the side air outlet 111 in cooling mode. The other outlet is located at the down air outlet 113, and is used to blow hot air downwards from the down air outlet 113 in heating mode. In this case, the down air outlet 113 is fixedly equipped with a filter at least in a location other than the air outlet of the indoor fan 120, so as to filter the air drawn in by the down air outlet 113 in cooling mode.

[0099] In some embodiments, such as Figure 7 As shown, the reversible air supply air conditioner also includes a control module 300, which is electrically connected to the drive motor 232, the first drive component 227, the second drive component 250 and the indoor fan 120, and is used to control the operating status of the drive motor 232, the first drive component 227, the second drive component 250 and the indoor fan 120.

[0100] Secondly, embodiments of this application provide a control method for a reversible air-supply air conditioner, used to control the reversible air-supply air conditioner mentioned above. The reversible air-supply air conditioner has at least one damper device 200 at a side air outlet 111. The control method includes: Receive mode switching command.

[0101] If the mode switching command is to switch to heating mode, control the filter component to move to the first position and control the reversible air conditioner to switch to heating mode.

[0102] If the mode switching command is to switch to cooling mode, control the filter component to move to the second position and control the reversible air conditioner to switch to cooling mode.

[0103] If the mode switching command is to switch to heating mode, the control system will control the filter assembly 220 to move to the first position, and simultaneously control the reversible air conditioner to switch to heating mode and start the indoor fan 120. If, after receiving the command to switch to heating mode, the control module 300, after stopping the compressor and indoor fan 120, adjusts the filter assembly 220 to the first position via the second drive component 250 and the first drive component 227.

[0104] When the wind deflector assembly 230 includes multiple rotating grille plates 231, the control module 300 can also control the drive motor 232 to rotate the multiple grille plates 231 to a spaced-out state. Subsequently, the control module 300 starts the compressor and indoor fan 120 to drive indoor air through the filter assembly 220 at the side air vent 111 into the installation cavity. After being heated by the indoor heat exchanger 130, the air is blown downwards through the down vent 113. This allows the heated air to be delivered to the lower part of the room through the down vent 113, thereby improving the uniformity of indoor air temperature distribution. Furthermore, by placing the filter assembly 220 in the first position, it can be ensured that in heating mode, the air entering the room is filtered to remove dust, particulate matter, and other pollutants, thus providing clean warm air, improving indoor air quality and user comfort.

[0105] If the mode switching command is to switch to cooling mode, the control system will control the filter assembly 220 to move to the second position, and simultaneously control the reversible air conditioner to switch to cooling mode and start the indoor fan 120. If, after receiving the command to switch to cooling mode, the control module 300, after stopping the compressor and indoor fan 120, adjusts the filter assembly 220 to the second position outside the side air vent 111 via the second drive component 250 and the first drive component 227.

[0106] When the wind deflector assembly 230 includes multiple rotating grille plates 231, the control module 300 can also control the drive motor 232 to rotate the multiple grille plates 231 to a state where they are sequentially connected to block one side of the grille plates 231. Subsequently, the control module 300 starts the compressor and indoor fan 120 to drive indoor air through the filter assembly 220 at the downdraft vent 113 into the mounting cavity. After being cooled by the indoor heat exchanger 130, the air is blown obliquely upwards through the gap between the side vent 111 and the filter assembly 220. This allows the cooled air to be delivered to the upper part of the room through the side vent 111 and spread, thereby improving the uniformity of the indoor cold air temperature distribution through a waterfall-like diffusion effect. Because the filter assembly 220 moves to the second position, the resistance of the airflow through the filter assembly 220 can be effectively reduced, thereby achieving a larger air volume and faster cooling effect in cooling mode. Furthermore, when the filter assembly 220 is in the second position, the wind deflector 230 is configured to prevent air from flowing through the filter assembly 220, thereby effectively preventing cold air from flowing through the filter assembly 220 as it exits from the side vent 111. This prevents impurities and other pollutants accumulated on the outside of the filter assembly 220 from being blown off and mixed into the room, thus maintaining good air quality in the indoor cooling control to improve the user experience.

[0107] Thirdly, such as Figure 9 As shown in the figure, this application embodiment provides a control device for a reversible air supply air conditioner, namely a control module 300. This control module includes a processor 310, a communication interface 320, a memory 330, and a communication bus 340. The processor 310, communication interface 320, and memory 330 communicate with each other via the communication bus 340. The memory 330 is used to store computer programs.

[0108] In one embodiment of this application, when the processor 310 executes the computer program stored in the memory 330, it implements the execution steps of the control method for the reversible air-conditioning unit in the second aspect.

[0109] This application also provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the execution steps of the control method for the reversible air-conditioning unit in the second aspect.

[0110] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0111] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0112] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A damper device, characterized in that, include: An air vent component, wherein the air vent component has an opening; A filter assembly connected to the air vent and configured to move and switch between a first position and a second position; The filter assembly is located inside the opening at the first position and is used to purify the air flowing through the air outlet. The filter assembly is located outside the opening at the second position; And a wind deflector assembly, which is disposed on one side of the filter assembly along the direction of airflow; The windbreak assembly is configured as follows: When the filter assembly is in the second position, the windbreak assembly prevents air from flowing through the filter assembly; when the filter assembly is in the first position, air flows through the filter assembly and through the opening.

2. The damper device according to claim 1, characterized in that, When the filter assembly is in the second position, the windbreak assembly is disposed between the filter assembly and the opening.

3. The damper device according to claim 1, characterized in that, The windbreak assembly includes a plurality of grilles, which are disposed on one side of the filter assembly along the airflow direction, and the plurality of grilles are configured to have a first state and a second state. When the filter assembly is in the first position, the plurality of grid plates move and switch to the first state so that there is a gap between the plurality of grid plates; When the filter assembly is in the second position, the plurality of grid plates move to switch to the second state to reduce the gap between the plurality of grid plates.

4. The damper device according to claim 3, characterized in that, The filtering component includes: The positioning frame has an air vent. Two first side plates, wherein the positioning frame is sequentially connected to one of the first side plates at each end along the length direction; The second side plate, one end of the positioning frame along the width direction is connected to the second side plate, the first side plate and the second side plate are located on the same side of the air outlet and are connected to form a filter cavity; And a filter element, which is detachably installed inside the filter chamber.

5. The damper device according to claim 4, characterized in that, On the side of the filter element away from the air outlet, a plurality of the grille plates are disposed in the filter cavity and rotatably connected to the two first side plates; When the plurality of grating plates rotate to switch to the first state, a gap is created between the plurality of grating plates. When the plurality of the grille plates rotate to switch to the second state, they block the side of the filter element away from the air inlet.

6. The damper device according to claim 5, characterized in that, The windbreak assembly includes: Drive motor; The drive motor is connected to the plurality of grating plates via the drive component, and is used to drive the plurality of grating plates to rotate and switch between a first state and a second state.

7. The damper device according to claim 6, characterized in that, The transmission component includes: Multiple first gears are provided on the side of the first side plate opposite to the filter chamber, with one first gear connected to one end of the grid plate; The drive motor is connected to the second gear, and the second gear meshes with the first gear to drive the multiple grille plates to rotate and switch between the first state and the second state.

8. The damper device according to claim 7, characterized in that, The number of the drive motor and the second gear is two, with one drive motor being connected to one second gear in a transmission connection; The number of the first gear and the grid plate is four, and two of the first gears are meshed with the same second gear.

9. The damper device according to claim 4, characterized in that, The positioning frame is rotatably connected to the air vent component at both ends along the length direction; When the filter assembly is rotated to the second position, there is a gap between the end of the positioning frame away from the second side plate along the width direction and the air outlet component. The second side plate is inclined toward the air vent at least at one end away from the positioning frame.

10. The damper device according to any one of claims 4-9, characterized in that, The damper device also includes: An air guide panel is rotatably connected to the air outlet component. When the filter assembly is in the first position, the air guide panel is used to block the air inlet side of the air outlet component.

11. A reversible air supply air conditioner, characterized in that, Includes an indoor unit, said indoor unit comprising: The housing is provided with a side air vent, a mounting cavity and a down air vent connected in sequence; And the damper device as described in any one of claims 1-10, wherein the damper device is provided at least at the side air outlet.

12. A control method for a reversible air supply air conditioner, used to control the reversible air supply air conditioner as described in claim 11, characterized in that, The control method includes: Receive mode switching command; If the mode switching command is to switch to heating mode, control the filter component to move to the first position, and control the reversible air conditioner to switch to heating mode. If the mode switching command is to switch to cooling mode, control the filter component to move to the second position, and control the reversible air conditioner to switch to cooling mode.

Images