Air guide door installation structure and wall-mounted air conditioner

Abstract

The embodiments of the present application provide an air guide door mounting structure and a wall-mounted air conditioner, which relate to the technical field of air conditioning. In the air guide door mounting structure of the present application, the fixed end of the door panel is rotatably connected to the middle frame and can rotate around the strip-shaped protrusion on the front side of the middle frame. The strip-shaped protrusion on the middle frame cooperates with the boss on the inner side of the door panel through a first mating surface and a second mating surface, so that during the rotation of the air guide door, the middle frame will not hinder the door panel. Moreover, by providing the boss, the airflow can flow from the top of the boss along the second side of the boss to the middle area of ​​the door panel after passing through the strip-shaped protrusion, avoiding the lack of transition and turbulence of the airflow after passing through the strip-shaped protrusion due to the uneven connection between the strip-shaped protrusion and the inner side of the door panel, and even avoid abnormal noise.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, and in particular to an air guide door installation structure and a wall-mounted air conditioner. Background Art

[0002] Existing wall-mounted air conditioners all have an air guide door that closes or opens the air outlet and also serves as a guide. However, the door panel of the air guide door extends into the air conditioner interior via a connecting arm and is pivotally connected to the middle frame. During the air guide door's rotation, the door panel swings with the connecting arm. The lack of a transition structure between the door panel and the middle frame causes airflow to become turbulent as it flows from the middle frame to the air guide door. As a result, the airflow guidance effect of this existing air guide door mounting structure is poor. Summary of the Invention

[0003] The problem to be solved by the present application is how to improve the air guide effect of the air guide door.

[0004] To solve the above problems, on the first aspect, the present application provides an air guide door mounting structure, which is applied to a wall-mounted air conditioner. The air guide door mounting structure includes a middle frame and an air guide door. The middle frame is provided with a transversely extending strip-shaped protrusion. The air guide door includes a door panel. The door panel has a relative free end and a fixed end. The fixed end is rotatably connected to the middle frame so that the air guide door can rotate around the strip-shaped protrusion. A boss is provided on the inner side of the door panel near the fixed end. The boss has a first side facing the strip-shaped protrusion and a second side facing away from the strip-shaped protrusion. The outer peripheral surface of the strip-shaped protrusion is a first mating surface. The first side of the boss has a second mating surface. The first mating surface is adapted to the second mating surface.

[0005] In the embodiment of the present application, the fixed end of the door panel is rotatably connected to the middle frame and can rotate around the strip-shaped protrusion on the front side of the middle frame, so that the rotation axis of the air guide door is relatively outward, and the door panel can rotate around its own fixed end. The door panel has better stability and a wider range of rotation angles, which can better meet the needs of adjusting the air outlet direction. In addition, the strip-shaped protrusion on the middle frame and the boss on the inner side of the door panel cooperate through the first mating surface and the second mating surface, so that during the rotation of the air guide door, the middle frame will not hinder the door panel. Moreover, by providing the boss, the airflow can flow from the top of the boss along the second side of the boss to the middle area of ​​the door panel after passing through the strip-shaped protrusion, avoiding the lack of transition and turbulence caused by the uneven connection between the strip-shaped protrusion and the inner side of the door panel, and even the generation of abnormal noise.

[0006] In an optional embodiment, the first mating surface is an outer cylindrical surface, and the second mating surface is an inner cylindrical surface. During the rotation of the air guide door relative to the middle frame, the first mating surface and the second mating surface are loosely matched. In this embodiment, by setting the first mating surface as an outer cylindrical surface and the second mating surface as an inner cylindrical surface, the strip-shaped protrusion and the door panel are kept in close contact with each other as much as possible. When airflow passes through the strip-shaped protrusion and the door panel, it is less likely to cause air leakage due to the large gap between the door panel and the strip-shaped protrusion, allowing the airflow to be concentrated and smoothly directed in the target direction.

[0007] In an optional embodiment, the door panel includes a lining plate and a panel, which overlap in the thickness direction of the door panel, the surface of the lining plate facing away from the panel is the wind guide surface, and the boss is protruding from the side of the wind guide surface of the lining plate close to the fixed end.

[0008] In an optional embodiment, the second side of the boss is a concave arc surface and smoothly connects with the air guide surface on the inner side of the door panel. By setting the second side of the boss as a concave arc surface, the second side of the boss can be connected more smoothly with the air guide surface on the inner side of the door panel, and the air flow is smoother.

[0009] In an alternative embodiment, the panel is an arc-shaped panel, which is connected to the lining plate at the free end and the fixed end of the door panel, and a cavity is formed between the panel and the lining plate. By providing the door panel with a structure having a cavity, the overall weight of the door panel can be reduced, and its rotation is facilitated.

[0010] In an optional embodiment, the middle frame is provided with mutually spaced mating grooves, and the fixed end of the door panel is provided with two mutually spaced rotating parts, which are embedded in the mating grooves and can rotate relative to the mating grooves. The air guide door is rotatably connected to the middle frame through the two rotating parts, and the strip-shaped protrusion is located between the two mating grooves. In this embodiment, by providing a mating groove on the middle frame and a rotating part on the door panel, the rotating part is embedded in the mating groove and rotatably connected thereto, so that the door panel can rotate around its own fixed end. The door panel has better stability and a larger range of rotation angles, which can better meet the adjustment requirements of the air outlet direction. Furthermore, the inner wall surface of the mating groove is an inner cylindrical surface, and the outer peripheral surface of the rotating part is an outer cylindrical surface. The inner wall surface of the mating groove and the outer peripheral surface of the rotating part are set as cylindrical surfaces, which is conducive to the relative rotation of the rotating part and the mating part, and can make the mating tighter and the connection more stable.

[0011] In an optional embodiment, the middle frame forms an air outlet, and the matching groove is arranged on the front side of the middle frame and above the air outlet.

[0012] In an optional embodiment, the two matching grooves are respectively provided at both ends of the middle frame in the horizontal direction.

[0013] In an optional embodiment, a drive mechanism is further included. The strip-shaped protrusion is hollow, and an opening is provided at one end of the two mating grooves, which is adjacent to each other, to communicate with the inner side of the strip-shaped protrusion. The drive mechanism is connected to the rotating portion of the air guide door through the opening and is used to drive the air guide door to rotate relative to the middle frame. In this embodiment, the drive mechanism is located inside the strip-shaped protrusion and connected to the rotating portion through the opening. This arrangement is reasonable and provides good transmission performance.

[0014] In a second aspect, the present application provides a wall-mounted air conditioner, comprising the air guide door mounting structure of any one of the aforementioned embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of a wall-mounted air conditioner in an embodiment of the present application with the air guide door closed;

[0016] Figure 2 This is a schematic diagram of a wall-mounted air conditioner in an embodiment of the present application with the air guide door open;

[0017] Figure 3 This is a schematic diagram of a middle frame of a wall-mounted air conditioner in one embodiment of the present application;

[0018] Figure 4 This is an exploded view of an air guide door in one embodiment of the present application;

[0019] Figure 5 This is a cross-sectional view of a wall-mounted air conditioner in one embodiment of the present application;

[0020] Figure 6 for Figure 5 A magnified view of the local VI.

[0021] Explanation of the reference numerals: 010 - wall-mounted air conditioner; 100 - middle frame; 110 - air outlet; 120 - strip-shaped protrusion; 121 - first mating surface; 130 - mating groove; 131 - opening; 200 - air guide door; 210 - door panel; 211 - fixed end; 212 - free end; 213 - panel; 214 - lining plate; 215 - snap-fit ​​structure; 216 - boss; 217 - second mating surface; 220 - rotating part; 221 - fixed part; 222 - cover body. DETAILED DESCRIPTION

[0022] Wall-mounted air conditioners are usually equipped with a rotatable air guide door, which is used to open or close the air outlet and plays a role in guiding air flow during the operation of the air conditioner. However, the existing air guide door is rotatably connected to the inside of the air conditioner through a connecting arm, and the door panel of the air guide door swings with the connecting arm. This air guide door installation structure has poor stability due to its long lever arm. The swing of the air guide door with the connecting arm will cause the inclination angle of the door panel to change in a relatively small range, which sometimes cannot well meet the user's needs for adjusting the wind direction. In addition, because the air guide door in the prior art swings with the connecting arm, the end close to the middle frame has a larger movement amplitude relative to the middle frame, and there is a lack of transition between the door panel and the middle frame. The airflow easily generates large turbulence at the connection between the two, and large turbulence may produce abnormal noise. Therefore, the existing air guide door installation structure has the problem of insufficient air flow, which affects the user experience.

[0023] In order to improve at least one of the shortcomings of the above-mentioned prior art, the embodiments of the present application provide an air guide door mounting structure and a wall-mounted air conditioner. By setting a boss on the inner side of the door panel of the air guide door, which is adapted to the strip-shaped raised surface of the middle frame, the air guide door can always cooperate well with the middle frame during the rotation process, so that the airflow can be smoother when passing through the connection between the middle frame and the air guide door, and the air guiding effect is better.

[0024] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0025] Figure 1 This is a schematic diagram of a wall-mounted air conditioner 010 in an embodiment of the present application with the air guide door 200 closed; Figure 2 This is a schematic diagram of a wall-mounted air conditioner 010 in an embodiment of the present application with the air guide door 200 open; Figure 3 Schematic diagram of the middle frame 100 of the wall-mounted air conditioner 010 in one embodiment of the present application. Figures 1 to 3 As shown, the wall-mounted air conditioner 010 provided in the embodiment of the present application includes a middle frame 100, an air guide door 200, a shell, a driving mechanism (not shown in the figure), a heat exchanger (not shown in the figure) and a fan (not shown in the figure). Among them, the middle frame 100 constitutes the frame of the wall-mounted air conditioner 010, and the middle frame 100 forms an air outlet 110; the air guide door 200 is rotatably connected to the middle frame 100, used to open or close the air outlet 110, and can guide the direction of the air outlet, that is, it plays a diversion role; the driving mechanism is used to drive the air guide door 200 to rotate relative to the middle frame 100. The middle frame 100, the air guide door 200 and the driving mechanism constitute the air guide door installation structure in this embodiment. In addition, a shell is also provided on the outside of the middle frame 100.

[0026] As shown in the figure, in the embodiment of the present application, the air outlet 110 formed by the middle frame 100 is located at a lower position on the front side of the middle frame 100. The front side of the middle frame 100 is provided with two mutually spaced mating grooves 130 for mating with the air guide door 200. In this embodiment, the two mating grooves 130 are provided at both ends of the middle frame 100 in the horizontal direction and are located above the air outlet 110. It should be understood that in this embodiment, the mating grooves 130 are provided above the air outlet 110 so that the rotation axis of the air guide door 200 is above the air outlet 110 and is located on the front side of the middle frame 100. The air guide door 200 can close the air outlet 110 by rotating downward or open the air outlet 110 by rotating upward. In other optional embodiments, the mating groove 130 may also be provided at the lower edge of the air outlet 110, and the air outlet 110 can be opened by rotating downward or closed by rotating upward through the air guide door 200; in other embodiments, the two mating grooves 130 may not necessarily be provided at both ends of the middle frame 100, but may be provided laterally spaced apart in the middle position of the middle frame 100.

[0027] The middle frame 100 has a strip-shaped protrusion 120 between the two mating grooves 130. The length of the strip-shaped protrusion 120 corresponds to the spacing between the two mating grooves 130, and the ends of the strip-shaped protrusion 120 are adjacent to the two mating grooves 130. In this embodiment, the outer peripheral surface of the strip-shaped protrusion 120 serves as a first mating surface 121, which is used to mate with the air guide door 200. Furthermore, the first mating surface 121 is an outer cylindrical surface, and the central axis of the strip-shaped protrusion 120 extends horizontally and is parallel to the rotation axis of the air guide door 200.

[0028] In this embodiment, the air guide door 200 includes a door panel 210, which has a relatively free end 212 and a fixed end 211. The fixed end 211 is rotatably connected to the middle frame 100 so that the air guide door 200 can rotate around the strip protrusion 120. By rotatably connecting the fixed end 211 of the door panel 210 to the middle frame 100 and being able to rotate around the strip protrusion 120 on the front side of the middle frame 100, the rotation axis of the air guide door 200 is relatively outward, and the door panel 210 can rotate around its own fixed end 211. The door panel 210 has better stability and a larger range of rotation angles, which can better meet the adjustment requirements of the air outlet direction.

[0029] Furthermore, the fixed end 211 of the door panel 210 is provided with two spaced-apart rotating portions 220. The rotating portions 220 engage with the mating groove 130 and are rotatable relative to the mating groove 130. The air guide door 200 is rotatably connected to the middle frame 100 via the two rotating portions 220. In this embodiment, the two rotating portions 220 are located at opposite ends of the long sides of the door panel 210. By providing the mating groove 130 on the middle frame 100 and the rotating portions 220 on the door panel 210, and allowing the rotating portions 220 to engage with the mating groove 130 and be rotatably connected thereto, the door panel 210 can rotate about its fixed end 211, thereby improving the stability of the door panel 210. Furthermore, the inner wall surface of the mating groove 130 is an inner cylindrical surface, while the outer circumference of the rotating portion 220 is an outer cylindrical surface. The cylindrical design of both the inner wall surface of the mating groove 130 and the outer circumference of the rotating portion 220 facilitates relative rotation between the rotating portion 220 and the mating portion, and provides a tighter fit and greater connection stability.

[0030] like Figure 3 As shown, in the embodiment of the present application, the strip-shaped protrusion 120 is hollow, and an opening 131 is provided at one end of the two mating grooves 130 that is adjacent to each other, communicating with the inner side of the strip-shaped protrusion 120. The driving mechanism is connected to the rotating portion 220 of the air guide door 200 through the opening 131, and is used to drive the air guide door 200 to rotate relative to the middle frame 100. In this embodiment, the opening 131 is oriented horizontally. The driving mechanism is disposed on the inner side of the strip-shaped protrusion 120 and is connected to the rotating portion 220 through the opening 131. This arrangement is reasonable and provides a good transmission effect. It should be understood that in this embodiment, the driving mechanism is connected to the rotating portion 220 of the air guide door 200 through the opening 131, which means that the driving mechanism and the rotating portion 220 are connected by a component that passes through the opening 131, such as a transmission shaft that passes through the opening 131 to connect the driving mechanism and the rotating portion 220.

[0031] Figure 4 This is an exploded view of the air guide door 200 in one embodiment of the present application; Figure 5 This is a cross-sectional view of a wall-mounted air conditioner 010 in one embodiment of the present application; Figure 6 for Figure 5 An enlarged view of a local VI. Figures 4 to 6As shown, in the embodiment of the present application, the door panel 210 of the air guide door 200 includes a lining plate 214 and a panel 213. The lining plate 214 and the panel 213 overlap in the thickness direction of the door panel 210, and the surface of the lining plate 214 facing away from the panel 213 serves as the air guide surface. In the embodiment of the present application, a boss 216 is provided on the inner side of the door panel 210 near the fixed end 211. The boss 216 has a first side facing the strip-shaped protrusion 120 and a second side facing away from the strip-shaped protrusion 120. The outer peripheral surface of the strip-shaped protrusion 120 serves as the first mating surface 121. The first side of the boss 216 has a second mating surface 217, and the first mating surface 121 mates with the second mating surface 217. The boss 216 is provided protrudingly on one side of the air guide surface of the lining plate 214 near the fixed end 211. By providing the boss 216, the airflow can flow from the top of the boss 216 along the second side of the boss 216 to the middle area of ​​the door panel 210 after passing through the strip-shaped protrusion 120, thereby avoiding the airflow not being smooth enough after passing through the strip-shaped protrusion 120 due to the lack of transition between the strip-shaped protrusion 120 and the inner side of the door panel 210, thereby avoiding turbulence and even abnormal noise. Specifically in the present embodiment, the boss 216 is provided on the side of the wind guide surface of the lining plate 214 close to the fixed end 211. It should be understood that if the boss 216 is not provided, then when the airflow is sent out from the air outlet 110 and flows from the strip-shaped protrusion 120 to the wind guide surface of the lining plate 214 along the air outlet direction, part of the airflow will be rapidly deflected upwards (at the bottom) due to the lack of smooth transition between the wind guide surface and the outer peripheral surface of the strip-shaped protrusion 120. Figure 6 With the protrusion 216, however, after passing through the strip-shaped protrusion 120, the airflow is blocked by the protrusion 216 and does not deflect excessively upward. Instead, it flows from the top of the protrusion 216 along the second side of the protrusion 216 to the middle of the guide surface of the liner 214, making the entire process relatively smooth.

[0032] Alternatively, the second side of the boss 216 may be formed into a concave arc surface and smoothly connected to the air guide surface inside the door panel 210 (specifically located on the lining plate 214). By setting the second side of the boss 216 as a concave arc surface, the second side of the boss 216 can be connected more smoothly to the air guide surface inside the door panel 210, and the air flow can be smoother.

[0033] In this embodiment, the panel 213 and the lining plate 214 are detachably connected via a snap-fit ​​structure 215. In an alternative embodiment, the panel 213 is a curved plate connected to the lining plate 214 at the free end 212 and the fixed end 211 of the door panel 210, forming a cavity between the panel 213 and the lining plate 214. The curved shape of the panel 213 better matches the shape of the air conditioner housing, and by providing the door panel 210 with a cavity, the overall weight of the door panel 210 can be reduced, facilitating its rotation.

[0034] In other optional embodiments, the panel 213 and the lining plate 214 may be connected by fasteners such as screws, or by bonding or welding, or may even be formed as one piece; the structure of the door panel 210 may also be single-layered without a cavity in the middle.

[0035] In an optional embodiment of the present application, the first mating surface 121 can be configured as an outer cylindrical surface, and the second mating surface 217 can be configured as an inner cylindrical surface. During the rotation of the air guide door 200 relative to the middle frame 100, the first mating surface 121 and the second mating surface 217 are loosely mated. By configuring the first mating surface 121 as an outer cylindrical surface and the second mating surface 217 as an inner cylindrical surface, the strip-shaped protrusion 120 and the door panel 210 (specifically, the boss 216) can be kept as close as possible. When airflow passes through the strip-shaped protrusion 120 and the door panel 210, it is less likely to leak air due to the large gap between the door panel 210 and the strip-shaped protrusion 120, allowing the airflow to be concentrated and smoothly directed in the target direction. Optionally, the radius of curvature of the first mating surface 121 can be slightly smaller than the radius of curvature of the second mating surface 217, for example, the radius of curvature of the first mating surface 121 is 0.2 to 3 mm smaller than the radius of curvature of the second mating surface 217. When the central axes of the first mating surface 121 and the second mating surface 217 coincide with each other, the width of the gap between the first mating surface 121 and the second mating surface 217 remains constant as the air guide door 200 rotates, and is the difference between the curvature radii of the two.

[0036] like Figure 4 As shown, in this embodiment, the rotating portion 220 is connected to the inner side of the panel 213. The rotating portion 220 is hollow and cylindrical and includes a fixed portion 221 and a cover 222. The fixed portion 221 is fixedly connected to the panel 213, and the cover 222 is detachably connected to the fixed portion 221. The rotating portion 220 can be opened by removing the cover 222. The output end of the driving mechanism can be axially extended into the rotating portion 220, and is in transmission connection with the rotating portion 220, thereby driving the entire air guide door 200 to rotate. The detachable cover 222 can facilitate opening the rotating portion 220 and facilitate the connection and assembly of the driving mechanism and the rotating portion 220.

[0037] To sum up, in the air guide door installation structure of the embodiment of the present application, the fixed end 211 of the door panel 210 is rotatably connected to the middle frame 100, and can be rotated around the strip protrusion 120 on the front side of the middle frame 100, so that the rotation axis of the air guide door 200 is relatively outward, and the door panel 210 can rotate around its own fixed end 211. The door panel 210 has better stability and a larger range of rotation angles, which can better meet the adjustment requirements of the air outlet direction. In addition, the strip-shaped protrusion 120 on the middle frame 100 cooperates with the boss 216 on the inner side of the door panel 210 through the first mating surface 121 and the second mating surface 217, so that when the air guide door 200 rotates, the middle frame 100 will not hinder the door panel 210. Moreover, by setting the boss 216, the airflow can flow from the top of the boss 216 along the second side of the boss 216 to the middle area of ​​the door panel 210 after passing through the strip-shaped protrusion 120, avoiding the lack of transition and turbulence of the airflow after passing through the strip-shaped protrusion 120 due to the uneven connection between the strip-shaped protrusion 120 and the inner side of the door panel 210, and even causing abnormal noise.

[0038] The wall-mounted air conditioner 010 provided in the embodiment of the present application includes the above-mentioned air guide door installation structure, and therefore also has corresponding beneficial effects.

[0039] Although the present application is disclosed as above, the present application is not limited thereto. Any person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present application. Therefore, the scope of protection of the present application shall be based on the scope defined by the claims.

Claims

1. An air guide door installation structure, applied to a wall-mounted air conditioner (010), characterized in that: The air guide door mounting structure comprises a middle frame (100) and an air guide door (200), wherein a strip-shaped protrusion (120) extending laterally is provided on the front side of the middle frame (100), and the air guide door (200) comprises a door plate (210), wherein the door plate (210) has a free end (212) and a fixed end (211) opposite to each other, and the fixed end (211) is rotatably connected to the middle frame (100) so that the air guide door (200) can rotate around the strip-shaped protrusion (120). A boss (216) is provided on the inner side of the door panel (210) near the fixed end (211), the boss (216) having a first side facing the strip-shaped protrusion (120) and a second side facing away from the strip-shaped protrusion (120), the outer peripheral surface of the strip-shaped protrusion (120) being a first mating surface (121), the first side of the boss (216) having a second mating surface (217), the first mating surface (121) being adapted to the second mating surface (217); The first mating surface (121) is an outer cylindrical surface, and the second mating surface (217) is an inner cylindrical surface. During the rotation of the air guide door (200) relative to the middle frame (100), the first mating surface (121) and the second mating surface (217) are clearance-fitted. The door panel (210) comprises a lining plate (214) and a panel (213), wherein the lining plate (214) and the panel (213) overlap in the thickness direction of the door panel (210), a surface of the lining plate (214) facing away from the panel (213) being a wind guide surface, and the boss (216) is protruding from a side of the wind guide surface of the lining plate (214) close to the fixed end (211); The middle frame (100) is provided with mutually spaced mating grooves (130), the fixed end (211) of the door panel (210) is provided with two mutually spaced rotating parts (220), the rotating parts (220) are embedded in the mating grooves (130) and can rotate relative to the mating grooves (130), the air guide door (200) is rotatably connected to the middle frame (100) via the two rotating parts (220), and the strip-shaped protrusion (120) is located between the two mating grooves (130).

2. The air guide door installation structure according to claim 1, characterized in that: The second side of the boss (216) is a concave arc surface and is smoothly connected to the air guide surface on the inner side of the door panel (210).

3. The air guide door installation structure according to claim 1, characterized in that: The panel (213) is an arc-shaped plate, and the panel (213) is connected to the lining plate (214) at the free end (212) and the fixed end (211) of the door panel (210), forming a cavity between the panel (213) and the lining plate (214).

4. The air guide door installation structure according to claim 3, characterized in that: The middle frame (100) forms an air outlet (110), and the matching groove (130) is arranged on the front side of the middle frame (100) and is located above the air outlet (110).

5. The air guide door installation structure according to claim 1, characterized in that: The two matching grooves (130) are respectively arranged at two ends of the middle frame (100) in the horizontal direction.

6. The air guide door installation structure according to claim 1, characterized in that: The invention also includes a driving mechanism, wherein the strip-shaped protrusion (120) is hollow, and an opening (131) communicating with the inner side of the strip-shaped protrusion (120) is provided at one end of the two matching grooves (130) close to each other. The driving mechanism is connected to the rotating part (220) of the air guide door (200) through the opening (131) and is used to drive the air guide door (200) to rotate relative to the middle frame (100).

7. A wall-mounted air conditioner, characterized in that: The invention comprises the air guide door installation structure according to any one of claims 1 to 6.

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