CN218296188U - A dustproof subassembly and air conditioner for air conditioner - Google Patents

Abstract

The utility model provides a dustproof component and an air conditioner used for an air conditioner. The dustproof assembly includes: a frame, which is configured to surround the air inlet of the air conditioner, and includes two opposite first horizontal frames, two opposite first longitudinal frames and a frame air outlet grille; a valve baffle, and the valve baffle is slidable is firmly fixed on the frame, and includes two opposite second transverse frames, two opposite second longitudinal frames and the baffle air vent grille; and a driving device, the driving device includes a motor, a gear fixed on the rotating shaft of the motor and The rack fixed on the valve baffle, the gear and the rack mesh with each other, so that the motor can drive the valve baffle through the rack. The grille of the frame air outlet and the grille of the air outlet of the baffle overlap each other to reveal the open position of the air inlet and the air outlet of the frame. The grille and baffle vent grille are offset from each other to block movement between closed positions of the air inlet. The dustproof component has a simple structure, saves the inner space of the air conditioner, can be modularized, and has relatively low manufacturing cost.

Description

Dustproof components and air conditioners for air conditioners

technical field

The utility model relates to the technical field of air conditioning and ventilation, and specifically provides a dustproof component and an air conditioner for the air conditioner.

Background technique

The function of the air inlet of the air conditioner is to inhale air, make it flow through the heat exchanger inside the air conditioner, and form cold or hot air through heat exchange with the heat exchanger. In order to ensure the air quality of the air conditioner, a filter is installed behind the air inlet of the air conditioner. However, the air inlets of most air conditioners on the market are open. This open air inlet will cause dust to fall from the air inlet into the internal filter screen when the air conditioner is not in use. If the filter screen is not cleaned for a long time, bacteria may grow and damage the health of users. However, cleaning the filter screen is relatively cumbersome for users, and many users are unwilling to clean or even do not know how to clean the filter screen, which brings bad experience to users.

Chinese utility model patent CN208382503U discloses an air conditioner indoor unit and an air conditioner. The air conditioner indoor unit includes a housing provided with an air outlet and an outlet grille assembly. The air outlet grille assembly is located outside the air guide assembly of the air conditioner, and has an air outlet position, a closed position and an open position through sliding. When it is in the air outlet position, the air outlet grille is located at the air outlet, which is convenient for the air conditioner indoor unit to realize normal air outlet during use; when it is in the closed position, the door panel is located at the air outlet, which is conducive to the air conditioner indoor unit being activated when not in use. to the dustproof effect. Yet, in the disclosed technical scheme of CN208382503U, there is no mention that the air inlet grille for dustproofing is arranged at the air inlet. Further, what CN208382503U teaches is to configure an additional outlet grille without making corresponding improvements to the air guide assembly. This configuration results in a long sliding stroke of the air outlet grille assembly, occupying the internal space of the air conditioner, and the shape of the air outlet grille assembly is relatively complicated.

Therefore, a new technical solution is needed in the art to solve the above problems.

Utility model content

In order to solve the technical problem in the prior art that the structure of the dustproof component of the air inlet of the air conditioner is relatively complicated, the utility model provides a dustproof component for the air conditioner. The dustproof assembly includes: a frame configured to surround the air inlet of the air conditioner, and includes two opposite first transverse frames, two opposite first longitudinal frames, and the first transverse frame and The frame air outlet grill surrounded by the first longitudinal frame; the valve baffle, the valve baffle is slidably fixed on the frame, and includes two opposite second transverse frames, two opposite second The longitudinal frame and the baffle air outlet grill surrounded by the second transverse frame and the second longitudinal frame; and a driving device, the driving device includes a motor, a gear fixed on the rotating shaft of the motor and a gear fixed on The gear rack on the valve baffle, the gear and the rack are meshed with each other, so that the motor can drive the valve baffle through the rack and move between an open position where the air inlets are overlapped to expose the air inlets, and a closed position where the frame air outlet grilles and the baffle air outlet grilles are staggered from each other to cover the air inlets.

The dustproof assembly of the utility model adopts matching frame air outlet grille and baffle air outlet grille, which simplifies the structure of the dustproof assembly, shortens the stroke between opening the air inlet and closing the air inlet, and reduces the occupation of the internal space of the air conditioner ; The valve baffle is slidably fixed on the frame, and the rack is fixed on the valve baffle. Therefore, the motor drives the valve baffle by driving the rack in the open position where the frame vent grille and the baffle vent grille overlap each other to expose the air inlet, and the frame vent grille and the baffle vent grille are staggered from each other to block the air inlet to move between the closed positions. In this way, the dust-proof component can effectively prevent a large amount of dust from falling from the air inlet when the air conditioner is out of use, thereby reducing the number of times the user cleans the filter screen and improving user experience. In addition, with the help of the frame, the entire dustproof assembly can also be formed into a module, thereby facilitating the manufacture, installation and replacement of the dustproof assembly.

In the preferred technical solution of the above-mentioned dustproof assembly for air conditioners, the frame air outlet grille includes a plurality of first transverse plates parallel to the first transverse frame and arranged at regular intervals along the first longitudinal frame, Frame sub-air outlets are formed between adjacent first horizontal plates; the baffle air outlet grille includes a plurality of second horizontal frames parallel to the second horizontal frame and evenly spaced along the second longitudinal frame plates, forming baffle sub-tuyeres between adjacent second horizontal plates, wherein, in the open position, each frame sub-tuyere is aligned with the corresponding baffle sub-tuyere, and each the first transverse plate is aligned with the corresponding second transverse plate; in the closed position, each frame sub-vent is covered by the corresponding second transverse plate, and each baffle sub-vent is covered by the corresponding second transverse plate The corresponding first horizontal board covers. Through the above configuration, when the dust-proof component is in the open position, the sub-air outlets of the frame and the sub-air outlets of the baffle are completely aligned with each other, so they are completely exposed, so that the air inlet efficiency will not be affected by the sub-air outlets being blocked by the horizontal plate; dustproof When the assembly is in the closed position, the first horizontal plate and the sub-air outlets of the baffle, and the second horizontal plate and the sub-air outlets of the frame just block each other. The structure is not only simple but regular, and the manufacturing cost is relatively low.

In the preferred technical solution of the above-mentioned dust-proof assembly for air conditioners, the frame further includes at least one first longitudinal bar intersecting with the first horizontal plate; intersecting at least one second longitudinal strip, and each said second longitudinal strip is located in the same plane perpendicular to said frame as the corresponding said first longitudinal strip, wherein, in said open position, each said The second longitudinal strips are spaced away from the corresponding first longitudinal strips, and each of the second longitudinal strips is aligned with the corresponding first longitudinal strips in the closed position. The arrangement of the first vertical bar and the second vertical bar can improve the strength of the dust-proof assembly, prevent the deformation of the first horizontal plate or the second horizontal plate due to excessive length, and prevent the first horizontal plate There is interference with the second horizontal plate, causing jamming or even breaking. Further, the alignment between the first longitudinal bar and the second longitudinal bar minimizes the influence on the air intake efficiency caused by introducing the longitudinal bar and blocking a part of the air inlet.

In the preferred technical solution of the above-mentioned dust-proof assembly for air conditioners, each first longitudinal bar is perpendicular to the first horizontal plate; and each second longitudinal bar is perpendicular to the second horizontal plate. Through the above arrangement, the displacement direction of the second longitudinal bar is the same as its length direction, and its swept area on the plane of the air inlet is smaller, and the influence on the air inlet efficiency is also smaller.

In the preferred technical solution of the above-mentioned dustproof assembly for air conditioners, the first longitudinal bars and the second longitudinal bars are arranged at regular intervals along the first transverse frame and the second transverse frame, respectively. Through the above configuration, the reinforcement effect of the longitudinal strips on the horizontal plate in the length direction is more balanced, and the uniform arrangement is also suitable for processing.

In the preferred technical solution of the above-mentioned dust-proof assembly for air conditioners, the rack extends along the second transverse frame or the second longitudinal frame, and the valve baffle can correspondingly extend along the second A transverse frame or said first longitudinal frame slides relative to said frame. Through the above configuration, the arrangement direction of the dustproof components can be adjusted according to the usage of the inner space of the air conditioner.

In the preferred technical solution of the above-mentioned dustproof assembly for air conditioners, the rack is integrally formed on the valve baffle, or the rack is fixed on the valve baffle by welding or fastening. board. The rack and the valve baffle are integrally formed to facilitate tolerance control, making the entire dust-proof assembly run smoothly and avoid frequent jamming; and fixing the rack to the valve baffle by welding or fasteners can reduce the difficulty of processing .

In the preferred technical solution of the above-mentioned dustproof assembly for air conditioners, the driving device includes a first driving device and a second driving device arranged symmetrically with respect to the first transverse frame, wherein the first driving device and the The racks of the second driving device are respectively arranged along the two second longitudinal frames of the valve flapper. Through the two symmetrically arranged driving devices, the two longitudinal frames of the valve baffle can move synchronously, thereby avoiding the situation that the two sides of the valve baffle move asynchronously and cause jamming.

In the preferred technical solution of the above-mentioned dust-proof assembly for air conditioners, the number of the driving device is one, and the rack starts from the second lateral frame or the second A central portion of the longitudinal frame extends vertically outward. If the length of the dustproof assembly is relatively short, only one set of driving devices can be selected, which saves the space inside the air conditioner and reduces the manufacturing cost of the dustproof assembly.

In order to solve the technical problem in the prior art that the structure of the dustproof component of the air inlet of the air conditioner is relatively complicated, the utility model provides an air conditioner. The air conditioner includes: an air inlet located on the top of the air conditioner casing; and the dustproof assembly for the air conditioner according to any one of the above, the frame of the dustproof assembly is fixed to the cover The inner side of the shell and surrounds the air inlet. Through the dustproof assembly of the utility model, the air conditioner can effectively prevent a large amount of dust from falling into the air inlet when the air conditioner is stopped, thereby reducing the number of times the user cleans the filter screen and improving user experience. In addition, fixing the frame to the inner side of the casing not only reduces the overall volume of the air conditioner, but also improves the aesthetics of the air conditioner.

Description of drawings

Describe preferred embodiment of the present utility model below in conjunction with accompanying drawing, in accompanying drawing:

Fig. 1 is the schematic diagram of the embodiment of the utility model air conditioner;

Fig. 2 is a structural schematic view of an embodiment of the dust-proof assembly for an air conditioner of the present invention when it is in an open position;

Fig. 3 is a structural schematic diagram of an embodiment of the dust-proof assembly used in the air conditioner of the present invention when it is in the closed position;

Fig. 4 is a schematic structural view of an embodiment of the framework of the dust-proof assembly of the utility model for the air conditioner;

Fig. 5 is the plan view of the embodiment of the frame of the dustproof assembly used in the air conditioner of the utility model;

Fig. 6 is a side view of an embodiment of the frame of the dustproof assembly for the air conditioner of the present invention;

Fig. 7 is a structural schematic diagram of an embodiment of the valve baffle for the dustproof assembly of the air conditioner of the present invention;

Fig. 8 is a bottom view of an embodiment of the valve baffle for the dustproof assembly of the air conditioner according to the present invention;

Fig. 9 is a schematic structural view of another embodiment of the dust-proof assembly used in the air conditioner of the present invention;

Fig. 10 is a bottom view of the valve baffle of another embodiment of the dust-proof assembly for the air conditioner of the present invention;

List of reference signs:

1. Air conditioner; 10. Dustproof component; 11. Frame; 111. First horizontal frame; 111a. First horizontal outer frame; 111b. First horizontal inner frame; 112. First longitudinal frame; 112a. Open end; 113 , frame grille; 1131, the first horizontal plate; 1132, the first vertical bar; 1133, the frame sub-tuyere; 114, the upper surface; 115, the lower surface; 116, the slide rail; 12, the valve baffle; Horizontal frame; 122, second vertical frame; 123, baffle grille; 1231, second horizontal plate; 1232, second vertical bar; 1233, baffle sub-tuyere; 13, driving device; 13a, first driving device; 13b, the second driving device; 131, the motor; 132, the gear; 133, the rack; 1331, the reinforcing rib; 20, the casing; 20a, the top of the casing; 30, the air inlet.

detailed description

Preferred embodiments of the present utility model are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the utility model, and are not intended to limit the protection scope of the utility model.

It should be noted that, in the description of the present utility model, terms such as "upper", "lower", "inner", "outer" and other indicated directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, This is just for convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

In addition, it should be noted that, in the description of the present utility model, unless otherwise specified and limited, the terms "setting" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be directly connected, or indirectly connected through an intermediary, or internally connected between two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

In order to solve the technical problem in the prior art that the structure of the dustproof assembly of the air inlet of the air conditioner is relatively complicated, the utility model provides a dustproof assembly 10 for the air conditioner. The dustproof assembly 10 includes: a frame 11, the frame is configured to surround the air inlet 30 of the air conditioner 1, and includes two opposite first transverse frames 111, two opposite first longitudinal frames 112 and the first transverse frame 111 and the second A frame air outlet grille 113 surrounded by a longitudinal frame 112; the valve baffle 12, the valve baffle 12 is slidably fixed on the frame 11, and includes two opposite second transverse frames 121, two opposite second longitudinal Frame 122 and the baffle air outlet grille 123 surrounded by the second transverse frame 121 and the second longitudinal frame 122; and the driving device 13, the driving device includes a motor 131, a gear 132 fixed on the rotating shaft of the motor 131 and a gear 132 fixed on the valve. The rack 133 on the baffle 12, the gear 132 and the rack 133 mesh with each other, so that the motor 131 can drive the valve baffle 12 through the rack 133. The frame air outlet grille 113 and the baffle air outlet grille 123 overlap each other to expose the air inlet. 30 moves between the open position (as shown in FIG. 2 ) and the closed position (as shown in FIG. 3 ) where the frame air vent grille 113 and the baffle air vent grille 123 are staggered from each other to block the air inlet 30 .

Fig. 1 is the schematic diagram of the embodiment of the utility model. As shown in FIG. 1 , the air conditioner 1 includes a casing 20 , an air inlet 30 and a dustproof assembly 10 disposed at the air inlet 30 . In one or more embodiments, the air conditioner 1 is a wall-mounted air conditioner. Alternatively, the air conditioner 1 can also be a central air conditioner, a cabinet air conditioner or other suitable types. The air inlet 30 is located at the top 20 a of the air conditioner 1 and is formed on the casing 20 . The dustproof assembly 10 is fixed on the cover 20 at a position corresponding to the air inlet 30 . When the air conditioner 1 is turned off, the dustproof assembly 10 is in a closed state, so the air inlet 30 is closed to prevent dust from falling into the air conditioner 1 from the air inlet 30; when the air conditioner 1 is turned on, the dustproof assembly 10 is in an open state, so that With the air inlet 30, the air conditioner 1 can work in a normal cycle.

Fig. 2 is a schematic structural diagram of an embodiment of the dustproof assembly for air conditioners of the present invention when it is in an open position; Fig. 3 is a schematic structural diagram of an embodiment of the dustproof assembly for air conditioners of the present invention when it is in a closed position. As shown in FIG. 2 and FIG. 3 , in one or more embodiments, the dustproof assembly 10 for an air conditioner of the present invention includes a frame 11 , a valve baffle 12 , two sets of driving devices 13 and other components. The valve baffle 12 is slidably installed on the frame 11, and two groups of driving devices 13 can drive the valve baffle 12 to overlap each other to expose the open position of the air inlet 30 (such as 2 ) and the frame air vent grille 113 and the baffle air vent grille 123 are staggered from each other to block the movement between the closed position of the air inlet 30 (as shown in FIG. 3 ). As shown in Figure 2, in the open position, the frame air outlet grille 113 and the baffle air outlet grille 123 are completely aligned, exposing the air inlet 30; The closed position can be reached, so the movement stroke of the valve flapper 12 from the open position to the closed position is very short. As shown in FIG. 3 , in the closed position, the frame air vent grille 113 and the baffle air vent grille 123 are completely staggered, thereby completely covering the air inlet 30 .

Fig. 4 is a schematic structural view of an embodiment of the frame of the dustproof assembly used in the air conditioner of the present invention; Fig. 5 is a top view of an embodiment of the frame of the dustproof assembly of the present invention used in the air conditioner;

Fig. 6 is a side view of an embodiment of the frame of the dustproof assembly used in the air conditioner of the present invention. In one or more embodiments, the frame 11 is a component independent of the casing 20 of the air conditioner 1, and is fixed on the casing 20 of the air conditioner by buckles or fasteners, and is located inside the casing 20, so that The frame 11 cannot be seen from the outside of the air conditioner 1 . Alternatively, the frame 11 is integrally formed with the casing 20 of the air conditioner. The frame 11 is configured to surround the air inlet 30 of the air conditioner 1 . In one or more embodiments, frame 11 is made of plastic material in order to reduce its weight and manufacturing costs. Alternatively, frame 11 may be made of any other suitable material. As shown in FIG. 4 , the frame 11 has two opposite and parallel first transverse frames 111 : a first transverse outer frame 111 a and a first transverse inner frame 111 b , and two opposite and parallel first longitudinal frames 112 . The four frames are integrally formed to form a rectangular frame matching the air inlet 30 of the air conditioner 1 . Alternatively, the four borders together form a square frame or other suitable shaped frame. In an alternative embodiment, the first transverse frame 111 and the second longitudinal frame 112 are connected to each other by welding or fasteners to form the frame 11.

As shown in FIG. 5 , the frame 11 also includes a frame air outlet grille 113. In one or more embodiments, the frame air outlet grille 113 includes eight first horizontal plates 1131 and six first vertical bars 1132 perpendicular to each other. . Nine frame sub-air outlets 1133 are formed between adjacent first transverse plates 1131 . Each of the first horizontal plates 1131 is completely identical, and is evenly arranged between the two first horizontal frames 111 , and the width of the frame sub-tuyere 1133 is configured to be the same as that of the first horizontal plate 1131 . Alternatively, the first horizontal plate 1131 and the first vertical bar 1132 can be in other numbers, and the number of the first horizontal plate 1131 is only required to be configured to be one less than the frame sub-air opening 1133, so as to maximize the exposed area of the air inlet 30, and in addition The number of the first vertical bars 1132 should ensure that the first horizontal plate 1131 does not deform excessively, so as to prevent the collision between the frame grid 113 and the baffle grid 123 .

Continuing to refer to FIG. 4 , the frame 11 has an upper surface 114 and a lower surface 115 , and the height of each of the two first longitudinal borders 112 extends between the upper surface 114 and the lower surface 115 of the frame 11 . A slide rail 116 is arranged between the lower surface 115 of the frame 11 and the frame tuyere grille 113, the slide rail 116 is integrally formed on the two first longitudinal frames 112, and is configured so that the valve baffle plate 12 can slide along the slide rail 116. The first vertical frame 112 slides. As shown in Figure 4 and Figure 6, the height of the first transverse inner frame 111b is the same as the height of the frame air outlet grille 113, so the first longitudinal frame 112 forms an open end 112a near the first transverse inner frame 111b, and the valve stop The plate 12 is mountable to the frame 11 from the open end 112a and gives room for the valve flapper 12 to move from the closed position to the open position.

Fig. 7 is a structural schematic diagram of an embodiment of the valve baffle for the dustproof assembly of the air conditioner of the present invention; Fig. 8 is a bottom view of an embodiment of the valve baffle of the dustproof assembly of the present invention for the air conditioner. In one or more embodiments, the valve flapper 12 is made of plastic in order to reduce its weight and manufacturing cost. Alternatively, valve flapper 12 may be made of any other suitable material. As shown in FIG. 7 , the valve baffle 12 includes two opposite and parallel second transverse frames 121 , two opposite and parallel second longitudinal frames 122 and a baffle grille 123 . As shown in FIG. 8 , in one or more embodiments, the baffle grille 123 includes nine second horizontal plates 1231 and six second vertical bars 1232 perpendicular to each other, and the adjacent second horizontal plates 1231 Eight baffle sub-air outlets 1233 are formed between them, wherein the two second horizontal plates 1231 located on the outermost sides of the baffle grille 123 are directly formed into two second lateral frames 121 . Each second horizontal plate 1231 is identical, and is evenly arranged between the two second horizontal frames 121, the width of the frame sub-air outlet 1233 is configured to be the same as the width of the second horizontal plate 1231, and the second horizontal plate 1231 and The width of the first horizontal plate 1131 is also the same. Therefore, when the dustproof assembly 10 is in the closed position, the 9 second horizontal plates 1231 on the valve baffle 12 will cover the 9 frame sub-air outlets 1133 on the corresponding frame 11, and the 6 second longitudinal bars 1232 and The six first longitudinal bars 1132 are aligned one by one (as shown in FIG. 3 ); when the dustproof assembly 10 is in the open position, a second horizontal plate 1231 close to the motor 131 (that is, the first horizontal plate 1231 forming a second horizontal frame 121 Two horizontal plates 1231) are moved out of the frame 11, and the remaining eight second horizontal plates 1231 and the corresponding eight first horizontal plates 1131 on the frame 11 overlap each other, exposing the air inlet 30 (as shown in FIG. 2 ).

Continuing to refer to FIG. 2 and FIG. 3 , the driving device 13 includes a first driving device 13 a and a second driving device 13 b. The configurations of the first driving device 13 a and the second driving device 13 b are the same, and are respectively arranged along the two second longitudinal frames 122 . With respect to the center plane of the valve flapper 12 perpendicular to the second transverse plate 1231 , the first driving device 13 a and the second driving device 13 b are symmetrical to each other. Each of the first driving device 13 a and the second driving device 13 b includes a motor 131 , a gear 132 mounted on a shaft of the motor, and a rack 133 meshed with the gear 132 . As shown in FIG. 8 , in one or more embodiments, the racks 133 respectively extend outward along the directions of the two second longitudinal frames 122 . Each rack 133 is formed with a reinforcing rib 1331 towards the inner side of the other opposite rack 133, and the thickness of the reinforcing rib 1331 is the same as that of the second transverse plate 1231. Such an arrangement does not affect the sliding of the valve baffle plate 12 on the slide rail 116 , and prevents the rack 133 from being bent to affect the transmission of the driving device 13 . Alternatively, the rack 133 extends outward along the direction of the two second lateral frames 121 . In one or more embodiments, the rack 133 and the rib 1331 formed thereon are integrally formed on the valve flapper 12 . Alternatively, the rack 133 and the reinforcing rib 1331 are fixed to the valve baffle 12 by welding or fastening. The motor 131 of the driving device 13 is fixed on the casing 20 of the air conditioner 1 , located outside the first transverse inner frame 111b, and is connected to the corresponding rack 133 through a gear 132 fixed on its rotating shaft.

Fig. 9 is a schematic structural view of another embodiment of the dust-proof assembly for air conditioners of the present invention; Fig. 10 is a bottom view of a valve baffle of another embodiment of the dust-proof assembly for air conditioners of the present invention. As shown in FIG. 9 , in another embodiment, the rack 133 extends vertically outward from the middle of the second lateral frame 121 within the plane of the valve baffle 12 . The motor 131 of the driving device 13 is fixed on the casing 20 of the air conditioner 1 , located outside the first transverse inner frame 111b, and is connected to the corresponding rack 133 through a gear 132 fixed on its rotating shaft. As shown in FIG. 10 , reinforcing ribs 1331 are formed on both sides of the rack 133 . In one or more embodiments, the rack 133 and the reinforcing rib 1331 are integrally formed on the valve baffle 12 . Alternatively, the rack 133 and the reinforcing rib 1331 are fixed to the valve baffle 12 by welding or fastening.

When the dustproof assembly 10 performs an opening operation, the rotating shaft of the motor 131 rotates, driving the gear 132 on it to rotate around the central axis of the rotating shaft, and the rotation of the gear 132 pushes the rack 133 meshed with it along the second longitudinal frame 122 toward a Direction translation, the valve baffle 12 is subjected to tension, and starts to move away from the first lateral outer frame 111a from the state of being tightly against the first lateral outer frame 111a, until the frame sub-tuyere 1133 and the baffle sub-tuyere 1233 are completely overlapped, thereby Air inlet 30 is opened. On the contrary, when the dustproof assembly 10 performs the closing operation, the rotating shaft of the motor 131 rotates in a direction opposite to that during the opening operation, and drives the gear 132 on it to rotate around the central axis of the rotating shaft. The rotation of the gear 132 pushes the gear rack 133 engaged with it to translate in the opposite direction along the two second longitudinal frames 122, and the valve baffle 12 is pushed, and moves closer to the state from the state where the baffle sub-tuyere 1233 and the frame sub-tuyere 1133 are completely overlapped. The direction of the first lateral outer frame 111a moves until it closely abuts against the first lateral outer frame 111a, thereby closing the air inlet 30 .

So far, the technical solution of the utility model has been described in conjunction with the preferred implementations shown in the accompanying drawings, however, those skilled in the art can easily understand that the protection scope of the utility model is obviously not limited to these specific implementations. On the premise of not departing from the principle of the utility model, those skilled in the art can make equivalent changes or substitutions to relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the utility model.

Claims (10)

1. A dust-proof assembly for an air conditioner, comprising:

a frame configured to surround an air intake of the air conditioner and including two opposing first lateral rims, two opposing first longitudinal rims, and a frame air outlet grille enclosed by the first lateral rims and the first longitudinal rims;

a valve flap slidably secured to the frame and including two opposing second transverse rims, two opposing second longitudinal rims, and a flap tuyere grid enclosed by the second transverse rims and the second longitudinal rims; and

the driving device comprises a motor, a gear fixed on a rotating shaft of the motor and a rack fixed on the valve baffle, wherein the gear and the rack are meshed with each other, so that the motor can drive the valve baffle to move between an opening position where the frame air inlet grille and the baffle air inlet grille are overlapped with each other to expose the air inlet and a closing position where the frame air inlet grille and the baffle air inlet grille are staggered with each other to shield the air inlet through the rack.

2. The dust prevention assembly for an air conditioner according to claim 1,

the frame air inlet grille comprises a plurality of first transverse plates which are parallel to the first transverse frames and are uniformly arranged along the first longitudinal frames at intervals, and frame air inlets are formed between the adjacent first transverse plates;

the baffle plate air inlet grille comprises a plurality of second transverse plates which are parallel to the second transverse frames and are uniformly arranged along the second longitudinal frames at intervals, baffle plate air inlets are formed between the adjacent second transverse plates,

wherein in the open position, each of the frame shelf air openings is aligned with a corresponding one of the baffle sub-air openings and each of the first cross plates is aligned with a corresponding one of the second cross plates; in the closed position, each of the frame tuyere is covered by the corresponding second transverse plate, and each of the shutter sub-tuyeres is covered by the corresponding first transverse plate.

3. The dust prevention assembly for an air conditioner according to claim 2,

the frame further comprises at least one first longitudinal bar intersecting the first cross plate;

the valve baffle further comprises at least one second longitudinal strip intersecting the second cross plate, and each second longitudinal strip and the corresponding first longitudinal strip are located in the same plane perpendicular to the frame,

wherein in the open position each second longitudinal strip is distal from the corresponding first longitudinal strip and in the closed position each second longitudinal strip is aligned with the corresponding first longitudinal strip.

4. The dust prevention assembly for an air conditioner according to claim 3,

each first longitudinal strip is perpendicular to the first transverse plate; and is

Each second longitudinal strip is perpendicular to the second transverse plate.

5. The dust-proof assembly for an air conditioner according to claim 3, wherein the first and second longitudinal bars are arranged at regular intervals along the first and second lateral rims, respectively.

6. The dust control assembly for an air conditioner according to any one of claims 1 to 5, wherein the rack gear extends along the second lateral rim or the second longitudinal rim, and the valve shutter is slidable relative to the frame along the first lateral rim or the first longitudinal rim, respectively.

7. The dustproof assembly for an air conditioner according to claim 6, wherein the rack is integrally formed on the valve guard, or the rack is fixed to the valve guard by welding or fastening.

8. The dust-proof assembly for an air conditioner according to any one of claims 1 to 5, wherein the driving means includes first and second driving means arranged symmetrically with respect to the first lateral frame, wherein the racks of the first and second driving means are arranged along the two second longitudinal frames of the valve guard, respectively.

9. The dust prevention assembly for an air conditioner according to any one of claims 1 to 5, wherein the number of the driving means is one, and the rack extends perpendicularly outwardly from a middle portion of the second lateral frame or the second longitudinal frame in a plane of the valve shutter.

10. An air conditioner, characterized in that the air conditioner comprises:

the air inlet is formed in the top of the housing;

the dust prevention assembly for an air conditioner as claimed in any one of claims 1 to 9, wherein a frame of the dust prevention assembly is fixed to the housing and surrounds the air inlet.

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