Internal and external circulation air door of automobile

Abstract

The utility model discloses an automobile internal and external circulation air door which comprises an air door body, a hinge shaft is arranged at one end of the air door body, a driving part is arranged at the other end of the air door body, a plurality of protruding structures are arranged on the outer side wall of the air door body, and each protruding structure is formed by connecting at least three surrounding plates in a surrounding mode. And a plurality of triangular pyramid-shaped or pyramid-shaped convex parts are arranged in the convex structure. By the adoption of the technical scheme, the internal and external circulation air door is used for switching between the internal circulation air opening and the external circulation air opening which are rotationally connected to the automobile air conditioner body, and the structural strength of the internal and external circulation air door can be improved by arranging the protruding structure; due to the fact that the multiple triangular pyramid-shaped or pyramid-shaped protruding parts are arranged in the protruding structure, when the internal and external circulation air door blocks an external air inlet channel, external noise can be reduced through the triangular pyramid-shaped or pyramid-shaped protruding parts, and the effect of reducing noise is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive air conditioning dampers, and in particular to an automotive internal and external circulation damper. Background Art

[0002] The automotive air conditioning system's internal and external circulation damper is used to control the switching between internal and external air circulation modes, selecting ventilation options to regulate the air inside the vehicle and maintain freshness. While existing internal and external circulation dampers can meet the usage requirements, their structure still has certain shortcomings. For example, when the car's air conditioning is in internal circulation mode, the damper blocks the external air intake passage. Since external noise can pass through the damper during vehicle operation and enter the vehicle's interior, it results in relatively high interior noise levels. Therefore, designing an automotive internal and external circulation damper that can reduce noise has become an urgent technical problem to be solved. Utility Model Content

[0003] In order to overcome the existing technical defects, the purpose of this utility model is to provide an automotive internal and external circulation damper to solve the above-mentioned technical problems.

[0004] The technical solution adopted by this utility model to solve the technical problem is as follows:

[0005] According to one aspect of the present invention, an automotive internal and external circulation damper is designed, comprising: a damper body, wherein one end of the damper body is provided with a hinge shaft and the other end is provided with a drive unit, and the outer side wall of the damper body is provided with a plurality of protruding structures, wherein the protruding structures are formed by at least three surrounding plates connected together, and the interior of the protruding structures is provided with a plurality of protrusions in the shape of a triangular pyramid or a pyramid.

[0006] Using the above technical solution, the internal and external circulation damper is used to switch between the internal and external circulation air vents connected to the main body of the car air conditioner. The structural strength of the internal and external circulation damper can be increased by setting a protruding structure. By setting several triangular pyramid or pyramid-shaped protrusions inside the protruding structure, when the internal and external circulation damper blocks the external air intake passage, the triangular pyramid or pyramid-shaped protrusions can reduce the passage of external noise, thereby reducing noise.

[0007] To better address the aforementioned technical deficiencies, this utility model also offers a superior technical solution:

[0008] In some embodiments, a sealing ring is also included. The left and right ends of the damper body are respectively provided with U-shaped sealing plates. The outer edges of the two sealing plates are inserted into the insertion grooves at the left and right ends of the sealing ring, and the sealing ring is in a tensioned state. This allows for the installation of the sealing ring by insertion, which is faster and easier to replace compared to the existing adhesive method.

[0009] In some embodiments, the sealing ring has U-shaped sealing portions at its left and right ends, each composed of three inclined sealing plates connected together. This further improves the sealing performance.

[0010] In some embodiments, the inner wall of the damper body is provided with multiple reinforcing ribs spaced apart along its width. This increases the overall structural strength of the internal and external circulation damper, making it less prone to damage and extending its service life.

[0011] In some embodiments, the drive unit is a slotted or cross-shaped through-hole.

[0012] In some embodiments, the surface of the protrusion is provided with an absorbent coating layer. This can further reduce noise.

[0013] In some embodiments, the protruding structure is formed by six surrounding plates connected together. Attached Figure Description

[0014] Figure 1 A schematic diagram of the structure of an automotive internal and external circulation damper according to one embodiment of this utility model;

[0015] Figure 2 for Figure 1 A structural diagram from another perspective;

[0016] Figure 3 for Figure 2 A magnified structural diagram of position A in the middle;

[0017] Figure 4 This is a schematic diagram of the damper body.

[0018] Figure 5 This is a schematic diagram of the sealing ring structure;

[0019] Figure 6 This is a schematic diagram of the cross-sectional structure of the sealing ring;

[0020] Figure label:

[0021] 1. Damper body; 11. Hinge shaft; 12. Drive unit; 13. Raised structure; 14. Raised part; 15. Sealing plate; 2. Sealing ring; 20. Insertion groove; 21. U-shaped sealing gasket; 22. Arc-shaped connection part; 23. U-shaped sealing part. DETAILED DESCRIPTION

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0023] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, unless otherwise explicitly defined, terms such as setting, installing, connecting, and fixing should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0025] refer to Figures 1 to 6 As shown, this utility model provides an automotive internal and external circulation damper, used to switch between the internal circulation vent and the external circulation vent of an automotive air conditioning unit. The automotive internal and external circulation damper includes: a damper body 1 and a sealing ring 2. The damper body 1 has a hinge shaft 11 at its rear end and a drive part 12 at its front end. The drive part 12 is a straight insertion hole or a cross-shaped insertion hole. In this embodiment, the drive part 12 is preferably a cross-shaped insertion hole. The insertion hole is used to connect with the drive shaft of a motor. The internal and external circulation damper is rotated by the motor to switch between the internal circulation vent and the external circulation vent.

[0026] The outer wall of the damper body 1 is provided with a number of protruding structures 13. The protruding structure 13 is formed by three, four, five, six or more surrounding plates connected together. In this embodiment, the protruding structure 13 is preferably formed by six surrounding plates connected together. The protruding structure 13 is provided with a number of protrusions 14 in the shape of triangular pyramids or pyramids.

[0027] The damper body 1 has U-shaped sealing plates 15 at its left and right ends, respectively. The outer edges of the two sealing plates 15 are inserted into the insertion grooves 20 at the left and right ends of the sealing ring 2, and the sealing ring 2 is in a tensioned state. The sealing ring 2 includes two U-shaped sealing gaskets 21 and two arc-shaped connecting parts 22 that connect the two U-shaped sealing gaskets 21 together. The two U-shaped sealing gaskets 21 and the two arc-shaped connecting parts 22 are integral structures. The insertion grooves 20 are respectively provided on the two U-shaped sealing gaskets 21, and the insertion grooves 20 are U-shaped in shape.

[0028] The left and right ends of the sealing ring 2 are respectively provided with U-shaped sealing parts 23, which are composed of three inclined sealing pieces connected together.

[0029] In some embodiments, the inner sidewall of the damper body 1 is provided with a plurality of reinforcing ribs spaced apart along its width direction.

[0030] In some embodiments, the surface of the protrusion 14 is provided with an attractive coating layer.

[0031] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A car internal and external circulation damper, characterized in that, include: The damper body has a hinge shaft at one end and a drive unit at the other end. The outer wall of the damper body is provided with several protruding structures. The protruding structures are formed by at least three surrounding plates connected together. The interior of the protruding structures is provided with several protrusions in the shape of triangular pyramids or pyramids.

2. The automotive internal and external circulation damper according to claim 1, characterized in that, It also includes a sealing ring. The left and right ends of the damper body are respectively provided with sealing plates with a U-shaped structure. The outer edges of the two sealing plates are inserted into the insertion grooves at the left and right ends of the sealing ring, and the sealing ring is in a tensioned state.

3. The automotive internal and external air circulation damper according to claim 2, characterized in that, The sealing ring is provided with U-shaped sealing parts at its left and right ends, which are formed by three inclined sealing plates connected together.

4. A car internal and external circulation damper according to claim 1 or 2, characterized in that, The inner wall of the damper body is provided with multiple reinforcing ribs spaced apart along its width.

5. The automotive internal and external circulation damper according to claim 1, characterized in that, The drive unit has a slotted or cross-shaped plug-in hole.

6. The automotive internal and external circulation damper according to claim 1, characterized in that, The surface of the protrusion is provided with an attractive coating layer.

7. The automotive internal and external circulation damper according to claim 1, characterized in that, The protruding structure is formed by six surrounding panels connected together.

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