Indoor unit of air conditioner

Abstract

The utility model provides an indoor unit of an air conditioner. The indoor unit of the air conditioner comprises a machine body, a panel, at least two guide rails, at least two driving arms and at least two elastic pieces. An air inlet is formed in the machine body. The panel is rotatably arranged at the air inlet and used for opening and shielding the air inlet. The at least two guide rails are arranged on the inner side wall of the panel at intervals, and a sliding part is arranged in each guide rail. The driving arms and the guide rails are arranged in a one-to-one correspondence mode, and each driving arm can move in the inside-outside direction of the machine body. The elastic pieces and the driving arms are arranged in a one-to-one correspondence mode, and each elastic piece is connected between the corresponding driving arm and the sliding part and is configured to apply force enabling the sliding part and the corresponding driving arm to be close to each other or away from each other. The air conditioner solves the problem that a panel of an indoor unit of an existing air conditioner is prone to being blocked in the process of opening or closing an air inlet.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioning technical field, in particular to a kind of indoor unit of air conditioner. BACKGROUND

[0002] At present, in order to avoid dust entering indoor unit inside through air inlet when air conditioner is not working, causing internal parts dust and potential operation failure, part of air conditioner indoor unit will be provided with panel at air inlet. The panel is connected with two driving arms arranged at intervals, for driving panel to open or close air inlet. The panel is provided with guide rail, and the guide rail has guide slot, and the end of each driving arm is provided with sliding part, and the sliding part is slidably installed in the slot. But in actual operation, it is found that when the driving motor connected with the two driving arms is out of synchronization in the process of driving arm driving panel to execute opening or closing action, panel jamming phenomenon will appear. SUMMARY

[0003] In view of the above problems, the utility model is provided to provide an indoor unit of air conditioner to overcome the above problems or at least partially solve the above problems.

[0004] One object of the utility model is to solve the problem that the panel of the existing indoor unit of air conditioner is easy to jam in the process of opening or closing air inlet.

[0005] Specifically, the utility model provides an indoor unit of air conditioner, comprising:

[0006] Machine body, the machine body is formed with air inlet;

[0007] Panel, the panel is rotatably arranged at air inlet, for opening and shielding air inlet;

[0008] At least two guide rails are arranged on the inner side wall of the panel, and each guide rail is provided with sliding part;

[0009] At least two driving arms are arranged one by one with the guide rail, and the driving arm is movably arranged along the inner and outer directions of the machine body;

[0010] At least two elastic members are arranged one by one with the driving arm, each elastic member is connected between the driving arm and the sliding part, and is configured to apply force to make the sliding part and the driving arm approach each other or move away from each other.

[0011] Optionally, the indoor unit of air conditioner further comprises:

[0012] Connecting rod, one end of the connecting rod is fixedly connected with the sliding part, and the other end of the connecting rod is fixedly connected with the elastic member.

[0013] Optionally, the indoor unit of the air conditioner further comprises:

[0014] a cylinder coaxially arranged at the end of the driving arm; the elastic member is arranged in the cylinder, and the end of the connecting rod is inserted into the cylinder.

[0015] Optionally, the elastic member is a spring or a rubber buffer block.

[0016] Optionally, the sliding part is a pulley, which is rotatably installed at the end of the connecting rod through a mounting shaft.

[0017] Optionally, each guide rail comprises a first guide rail part having a first sliding groove, and the sliding part is installed in the first sliding groove.

[0018] Optionally, each guide rail further comprises a second guide rail part having a second sliding groove, and the openings of the first sliding groove and the second sliding groove are oppositely arranged.

[0019] One sliding part is arranged in the first sliding groove and the second sliding groove respectively, and the two sliding parts are arranged at the two ends of the mounting shaft in the axial direction.

[0020] Optionally, the first guide rail part and the second guide rail part are detachably connected.

[0021] Optionally, a rack is arranged on the driving arm, a gear is connected to the rack, the gear is engaged with the rack, and a driving motor is electrically connected to the gear, and the driving motor is configured to drive the rack to rotate, so as to drive the driving arm to move along the inner and outer directions relative to the machine body.

[0022] Optionally, one end of the guide rail is rotatably connected to the panel, and the other end of the guide rail is detachably connected to the panel.

[0023] The two driving arms are arranged at the two sides of the air inlet in the width direction.

[0024] The machine body further forms an air outlet, and the air inlet and the air outlet are arranged on the front side of the machine body, and the air inlet is located above the air outlet.

[0025] The panel is rotatably installed on the machine body through a rotating arm.

[0026] The rotating arm is arranged at the bottom of the panel.

[0027] In the indoor unit of the air conditioner, the elastic member is arranged between the end of the driving arm and the sliding part, and the sliding part is telescopically installed on the driving arm. During the movement of the panel, when the driving motors connected with the driving arms are out of synchronization, that is, when the driving arms are out of synchronization, under the action of the elastic members, the axial displacement deviation between the driving arms can be compensated, so that the sliding parts are synchronously slid along the guide rails, thereby avoiding the panel jamming phenomenon.

[0028] The above and other objects, advantages and features of the present application will become more apparent from the following detailed description of the embodiments of the present application, when taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0029] Some embodiments of the present application will now be described in detail in the following text, with reference to the accompanying drawings, in an exemplary and non-limiting manner. The same reference signs in the drawings denote the same or similar components or parts. It should be understood by those skilled in the art that the drawings are not necessarily drawn to scale. In the drawings:

[0030] Figure 1 is a schematic structural view of an indoor unit of an air conditioner according to an embodiment of the present application;

[0031] Figure 2 is a schematic structural view of a panel of the indoor unit in an open state according to an embodiment of the present application;

[0032] Figure 3 is a schematic structural view of a panel of the indoor unit in an open state according to an embodiment of the present application;

[0033] Figure 4 is Figure 3 is a partial enlarged view of A in FIG. 4;

[0034] Figure 5 is a schematic structural view of a driving mechanism according to an embodiment of the present application;

[0035] Figure 6 is a schematic sectional view of the driving mechanism according to an embodiment of the present application;

[0036] Figure 7 is a schematic exploded view of a guide rail according to an embodiment of the present application. DETAILED DESCRIPTION

[0037] The above and other objects, advantages and features of the present application will become more apparent from the following detailed description of the embodiments of the present application, when taken in conjunction with the accompanying drawings. Figures 1 to 7An indoor unit of an air conditioner according to an embodiment of the present application is described. In the description of the embodiments, it is to be understood that the terms "first", "second", "third" and the like, "positive", "negative" and the like, are used to describe various constituents, but do not imply or suggest relative importance or a specific number of the technical features indicated thereby. Thus, the features defined with "first", "second" and the like can explicitly or implicitly include at least one of the features, i.e. one or more of the features. In the description of the embodiments, the term "plurality" means at least two, for example two, three, etc., unless otherwise specifically limited. When a certain feature "includes" or "comprises" a certain or certain features, unless otherwise specifically described, it indicates that other features are not excluded and can further include other features.

[0038] Unless otherwise explicitly specified and limited, the terms "arrange", "mount", "connect", "join", "fix", "couple" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0039] In addition, in the description of the embodiments, the first feature "above" or "below" the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them. That is, in the description of the embodiments, the first feature "above", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" or "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0040] In the description of the embodiments, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the description, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] Figure 1 is a schematic structural diagram of an indoor unit of an air conditioner according to an embodiment of the present application, likeFigure 1 As shown, and with reference Figures 2 to 7 This utility model provides an indoor unit 100 for an air conditioner, comprising a body 110, a panel 120, at least two guide rails 130, at least two drive arms 141, and at least two elastic members 181. An air inlet 160 is formed on the body 110. The panel 120 is rotatably disposed at the air inlet 160, and the panel 120 is used to open and close the air inlet 160. At least two guide rails 130 are spaced apart on the inner sidewall of the panel 120, and each guide rail has a sliding portion 150. Drive arms 141 are arranged corresponding to the guide rails, and each drive arm 141 is movable along the inward and outward directions of the body 110. Elastic members 181 are arranged corresponding to the drive arms 141, and each elastic member 181 connects the drive arm 141 and the sliding portion 150, and is configured to apply a force that brings the sliding portion 150 and the drive arm 141 closer together or further apart.

[0042] In this embodiment, when the air conditioner is turned on, the drive arm 141 moves from the inside to the outside along the body, causing the sliding part 150 at its end to slide along the guide rail 130 on the inner side of the panel 120; the drive panel 120 rotates around the pivot, so that the panel 120 smoothly unfolds from the closed state to a preset opening angle to open the air inlet 160. When the air conditioner is turned off, the drive arm 141 moves in the opposite direction, the sliding part 150 slides in the opposite direction along the guide rail, and pulls the panel 120 back to the position where it completely blocks the air inlet 160.

[0043] In this embodiment, an elastic element 181 is provided between the end of the drive arm and the sliding part, and the sliding part is telescopically mounted on the drive arm. During the movement of the panel, when the drive motors 143 connected to the various drive arms 141 are out of sync, that is, when the various drive arms 141 move asynchronously, the elastic elements 181 can compensate for the axial displacement deviation between the different drive arms 141, so that the sliding parts 150 slide synchronously along the guide rail, thereby avoiding panel jamming.

[0044] In some optional embodiments of this utility model, the elastic element 181 is a spring. In this embodiment, a spring is used as the elastic element 181, utilizing its linear elastic characteristics to achieve precise displacement compensation control. Metal springs also have the characteristics of good creep resistance and high fatigue strength, and can maintain stable elastic compensation capability under long-term high-frequency opening and closing conditions.

[0045] In some optional embodiments of the utility model, the elastic member 181 is a rubber buffer block. In this embodiment, the rubber buffer block serves as the elastic member 181 and has nonlinear damping characteristics, which can effectively absorb impact vibration energy when compensating for displacement deviation and significantly reduce mechanical noise during the start and stop of the panel. Its large deformation capability can adapt to a larger range of displacement deviation, and the inherent friction damping characteristics of the rubber material help to suppress high-frequency micro-vibration during panel movement, which is particularly suitable for air conditioning use scenarios with strict silence requirements.

[0046] In some optional embodiments of the utility model, the indoor unit of the air conditioner further comprises a connecting rod 182, one end of the connecting rod 182 is fixedly connected with the sliding part, and the other end of the connecting rod 182 is connected with the elastic member 181. In this embodiment, the elastic member 181 can be a spring or a rubber buffer block.

[0047] This embodiment enhances the structural rigidity and force transmission stability between the end of the driving arm 141 and the sliding part 150 by adding the connecting rod 182 to fixedly connect the sliding part 150 and the elastic member 181, making the elastic member 181's extension and retraction trajectory more controllable, further improving the compensation accuracy of displacement deviation between different driving arms 141, and reducing the wear caused by flexible connection between components, prolonging the service life of the elastic member 181.

[0048] In some optional embodiments of the utility model, the indoor unit of the air conditioner further comprises a cylinder 183, the cylinder 183 is coaxially arranged at the end of the driving arm 141; the elastic member 181 is arranged in the cylinder 183, and the end of the connecting rod 182 is inserted into the cylinder 183.

[0049] Specifically, the elastic member 181 is a spring. The end of the connecting rod 182 close to the spring is provided with a stepped portion 1821. The connecting rod 182 has the function of a piston rod and can extend and retract along the cylinder 183 under the action of the spring.

[0050] In this embodiment, the cylinder 183 is coaxially installed with the driving arm 141 to form a guide chamber, the elastic member 181 is built-in and the end of the connecting rod 182 is inserted into the cylinder 183. When the driving arm moves, the elastic member 181 is pressed or pulled in the cylinder 183, the connecting rod 182 stably extends and retracts along the axis direction of the cylinder 183, and the wall surface of the cylinder 183 limits the radial deformation of the elastic member 181 to prevent deflection. This structure ensures that the elastic member 181 only deforms in the axial direction through physical constraint, which improves the reliability of synchronous compensation and simplifies the assembly process. At the same time, the cylinder 183 fully surrounds and protects the elastic member 181, effectively preventing dust from entering.

[0051] In some optional embodiments of the utility model, the sliding part 150 is a sliding block, which is fixedly arranged at the end of the connecting rod 182.

[0052] In some optional embodiments of the present application, the sliding part 150 is a pulley, which is rotatably installed on the end of the connecting rod 182 through a mounting shaft 151. The axial direction of the mounting shaft 151 is perpendicular to the extension direction of the guide rail 130. When the driving arm 141 moves along the inside-outside direction of the machine body 110, the driving arm 141 drives the pulley to roll along the sliding groove of the guide rail 130.

[0053] Compared with the sliding block, the present embodiment uses a pulley as the sliding part, replaces the sliding friction with rolling friction mode, reduces the wear rate of the sliding part and the guide rail, and improves the smoothness and stability of the overall action.

[0054] In some optional embodiments of the present application, each guide rail 130 includes a first guide rail part 131 having a first sliding groove, and the sliding part 150 is installed in the first sliding groove. The sliding part 150 is a pulley or a sliding block.

[0055] As shown in Figure 4 and Figure 7 In some optional embodiments of the present application, each guide rail 130 includes a first guide rail part 131 having a first sliding groove, and the sliding part 150 is installed in the first sliding groove. The sliding part 150 is a pulley or a sliding block.

[0056] Compared with the previous embodiment, by increasing the second guide rail part 132 and its corresponding second sliding groove, the two sliding parts 150 at the end of the driving arm 141 can slide in the first sliding groove and the second sliding groove, respectively. This double guide rail design not only further enhances the stability of the opening and closing action of the panel 120, but also improves the carrying capacity and durability of the entire driving system by dispersing the force on the sliding part, reduces the risk of system failure caused by single guide rail wear or failure, and thus improves the overall performance and reliability of the air conditioner indoor unit.

[0057] As shown in Figure 4 and Figure 7 In some optional embodiments of the present application, the first guide rail part 131 and the second guide rail part 132 are detachably connected.

[0058] The present embodiment adopts the detachable connection design of the first guide rail part 131 and the second guide rail part 132, which significantly improves the convenience of processing, assembly and maintenance. Specifically, compared with the integrated type, the split guide rail structure is more convenient to process; at the same time, the easy disassembly and reassembly characteristics of the guide rail greatly facilitate the daily cleaning and maintenance and the repair and replacement work in case of failure, effectively reducing the maintenance cost.

[0059] AsFigure 7 As shown, in some optional embodiments of this utility model, one end of the first guide rail portion 131 is provided with a first insertion portion 1312, the extension direction of the first insertion portion 1312 being parallel to the extension direction of the first slide groove; the other end of the first guide rail portion 131 is provided with a second insertion portion 1311, the extension direction of the second insertion portion 1311 being perpendicular to the extension direction of the first slide groove. The second guide rail portion 132 is provided with a first insertion groove 1322 and a second insertion groove 1321, the first insertion groove 1322 being used for insertion and engagement with the first insertion portion 1312, and the second insertion groove 1321 being used for insertion and engagement with the second insertion portion 1311.

[0060] In some optional embodiments of this utility model, the first guide rail portion 131 and the second guide rail portion 132 are fastened by a threaded connection. Specifically, threaded holes are provided at both ends of the first guide rail portion 131 and the second guide rail portion 132, and bolts or screws are screwed into these threaded holes to achieve a stable connection between the two. This connection method is firm and reliable, but requires tools for disassembly and installation.

[0061] This embodiment achieves a stable and flexible plug-in connection between the first guide rail section 131 and the second guide rail section 132 by providing a first insertion part 1312 parallel to the slide groove and a second insertion part 1311 perpendicular to the slide groove on the first guide rail section 131, and a corresponding insertion groove on the second guide rail section 132. This structure not only enhances the stability and reliability of the guide rail connection but also facilitates quick installation and disassembly, improving assembly efficiency and maintenance convenience.

[0062] like Figure 3 and Figure 4 As shown, in some optional embodiments of this utility model, one end of the guide rail 130 is rotatably connected to the panel 120, and the other end of the guide rail 130 is detachably connected to the panel 120. Specifically, a mounting base 123 is provided on the inner wall surface of the panel 120, and one end of the guide rail 130 is rotatably mounted on the mounting base 123 via a rotating shaft, the axis of which is perpendicular to the extension direction of the guide rail. The guide rail 130 and the panel 120 can be detachably connected by a snap-fit ​​connection or a threaded connection. Preferably, the guide rail 130 and the panel 120 are connected by a snap-fit ​​122. More preferably, multiple snap-fit ​​structures are provided between the guide rail 130 and the panel 120, so that the installation stability of the guide rail 130 can be ensured when the guide rail 130 and the panel 120 are fixed together.

[0063] In an embodiment, such as Figure 2As shown, when the guide rail 130 is fixed to the panel 120, the panel 120 can only open to a preset angle, such as 35 degrees. After separating the guide rail 130 from the panel 120, the panel 120 can open to 90 degrees, which is more conducive to air intake at the air inlet 160 and also makes it easier to remove the filter at the air inlet 160, thus facilitating filter cleaning.

[0064] In some optional embodiments of this utility model, the drive arm 141 is connected to a gear and rack mechanism, which drives the drive arm 141 to move relative to the body 110 in the inward and outward directions. Specifically, when the air inlet 160 is located on the front side of the body 110, the drive arm 141 can move in the front-back direction of the housing. When the air inlet 160 is located on the upper side of the body 110, the drive arm 141 can move in the vertical direction of the housing.

[0065] like Figure 3 , Figure 5 and Figure 6 As shown, the gear and rack mechanism includes a gear 142, a rack 145, and a drive motor 143. A transmission box 144 is provided inside the machine body 110, and the drive motor 143 and gear 142 are installed inside the transmission box 144. The rack 145 is disposed on the drive arm 141, and the gear 142 meshes with the rack. The output end of the drive motor 143 is connected to the gear 142. The drive motor is configured to drive the gear 142 to rotate, thereby driving the drive arm 141 to move in the inward and outward directions of the machine body 110. In other words, the drive arm 141, gear 142, rack, and drive motor 143 constitute the drive mechanism of the panel 120. In this embodiment, the gear and rack mechanism has the advantages of high transmission accuracy, long service life, and stable and reliable operation. Using a gear and rack mechanism to drive the drive arm ensures the stability and reliability of the drive arm 141's movement.

[0066] like Figure 2 and Figure 3 As shown, in some optional embodiments of this utility model, there are two drive arms 141, which are respectively disposed on both sides of the width direction of the air inlet 160. That is, the panel 120 is provided with two drive mechanisms, which are respectively disposed on both sides of the width direction of the air inlet 160.

[0067] like Figure 2 and Figure 3 As shown, in some optional embodiments of this utility model, the panel 120 is rotatably mounted on the body 110 via a rotating arm 121. Specifically, one end of the rotating arm 121 is connected to the panel 120, and the other end is rotatably mounted on the body 110 via a rotating shaft. The body 110 has a clearance hole for the rotating arm 121 to pass through, so that the two ends of the rotating arm 121 are located on the inner and outer sides of the body 110, respectively.

[0068] likeFigure 3 As shown, in some optional embodiments of this utility model, the rotation axis of the panel 120 is parallel to the lateral direction of the body 110. That is, the rotation shaft on the rotating arm 121 is arranged along the lateral direction of the body 110. This embodiment is particularly suitable for situations where the indoor unit 100 is a wall-mounted indoor unit or a horizontally recessed indoor unit.

[0069] In some embodiments of this utility model, the rotation axis of the panel 120 is parallel to the vertical direction of the body 110. That is, the rotation shaft on the rotating arm 121 is arranged along the vertical direction of the body.

[0070] like Figure 2 and Figure 3 As shown, in some optional embodiments of this utility model, an air outlet 170 is also formed on the body 110, and the air inlet 160 and the air outlet 170 are disposed on the front side of the body 110, with the air inlet 160 located above the air outlet 170. The panel 120 is rotatably mounted on the body 110 via a rotating arm 121, which is disposed at the bottom of the panel 120. Specifically, the body 110 includes a front shell 111, on which an air inlet 160 and an air outlet 170 are formed, and a heat exchange air duct connecting the air inlet 160 and the air outlet 170 is formed inside the body 110; the air inlet 160 and the air outlet 170 are distributed in the vertical direction. The drive arm 141 is inclined relative to the front shell 111.

[0071] In this embodiment, both the air inlet 160 and the air outlet 170 are located on the front side of the unit, which facilitates the embedded installation of the indoor unit in a cabinet or wall to meet the diverse usage needs of users. Furthermore, the rotating arm 121 is located at the lower edge of the panel 120, which can prevent the intake airflow and the blower airflow from interfering with each other.

[0072] In some embodiments of this utility model, the indoor unit 100 is a recessed air conditioning indoor unit, a wall-mounted air conditioning indoor unit, a floor-standing air conditioning indoor unit, or other air conditioning indoor units.

[0073] Preferably, the indoor unit 100 is a recessed air conditioning indoor unit.

[0074] Therefore, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. An indoor unit of an air conditioner, characterized by comprising: The air conditioner indoor unit comprises: a body, an air inlet being formed on the body; a panel, the panel being rotatably arranged at the air inlet for opening and shielding the air inlet; at least two guide rails, the guide rails being arranged on the inner side wall of the panel, each of the guide rails being provided with a sliding part; at least two driving arms, the driving arms being arranged corresponding to the guide rails, the driving arms being movably arranged along the inner and outer directions of the body; at least two elastic members, the elastic members being arranged corresponding to the driving arms, each of the elastic members being connected between the driving arm and the sliding part and configured to apply a force to make the sliding part and the driving arm approach or move away from each other.

2. The indoor unit of the air conditioner according to claim 1, characterized by Further comprising: a connecting rod, one end of the connecting rod being fixedly connected with the sliding part, the other end of the connecting rod being fixedly connected with the elastic member.

3. The indoor unit of the air conditioner according to claim 2, characterized by Further comprising: a cylinder, the cylinder being coaxially arranged at the end of the driving arm, the elastic member being arranged in the cylinder, and the end of the connecting rod being inserted into the cylinder.

4. The air conditioner indoor unit according to claim 2, wherein the elastic member is a spring or a rubber buffer block.

5. The air conditioner indoor unit according to claim 2, wherein the sliding part is a pulley, the pulley being rotatably arranged at the end of the connecting rod through a mounting shaft.

6. The air conditioner indoor unit according to claim 1, wherein each of the guide rails comprises a first guide rail part, the first guide rail part being provided with a first sliding groove, the sliding part being arranged in the first sliding groove.

7. The air conditioner indoor unit according to claim 6, wherein each of the guide rails further comprises a second guide rail part, the second guide rail part being provided with a second sliding groove, the openings of the first sliding groove and the second sliding groove being oppositely arranged; one of the sliding parts is arranged in the first sliding groove and the other is arranged in the second sliding groove, the two sliding parts being arranged at the two ends of the mounting shaft in the axial direction.

8. The air conditioner indoor unit according to claim 7, wherein the first guide rail part and the second guide rail part are detachably connected.

9. The air conditioner indoor unit according to claim 1, wherein the driving arm is provided with a rack, the rack being connected with a gear, the gear being engaged with the rack; the gear being electrically connected with a driving motor, the driving motor being configured to drive the rack to rotate so as to drive the driving arm to move along the inner and outer directions of the body.

10. The air conditioner indoor unit according to claim 1, wherein one end of the guide rail is rotatably connected with the panel, the other end of the guide rail being detachably connected with the panel; the two driving arms are arranged at the two sides of the air inlet in the width direction; the body is further provided with an air outlet, the air inlet and the air outlet being arranged on the front side of the body, the air inlet being located above the air outlet; the panel is rotatably arranged on the body through a rotating arm; the rotating arm is arranged at the bottom of the panel.

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