Tail door switch assembly for automobile tail door and automobile tail door

Abstract

The invention belongs to the technical field of automobiles, and relates to a tail door switch assembly for an automobile tail door and the automobile tail door. A switch assembly hole is formed in the switch support, and a mounting position is provided for the tail gate switch. And the fixed welding panel is convenient for fixedly welding the switch bracket at a corresponding position of the automobile tail door, so that the height of the tail door switch is increased. The tail gate switch is detachably and fixedly arranged on the switch bracket through the switch positioning structure, so that the tail gate switch is convenient to mount, dismount and replace, meanwhile, the accuracy of the mounting position of the tail gate switch can be ensured, and the assembly precision of the assembly is improved. The key protruding part provides an operation part for a user, so that the user can press to open or close the tail door conveniently. The annular seal plays a role in sealing, and improves reliability and service life of the tail gate switch. According to the invention, the convenience and safety of user operation are improved, the license plate lamp mounting bracket area is avoided, and the reasonable arrangement of other parts in the back door area is facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of automobiles and relates to a tailgate switch assembly for an automobile tailgate and the automobile tailgate. Background Art

[0002] With the rapid development of the automotive industry, people's comprehensive expectations for vehicles are also gradually increasing. Previously, they focused solely on performance indicators such as engine displacement and fuel consumption, but now they are increasingly demanding comfort, functionality, and aesthetics. For example, the tailgate is a crucial component of vehicle functionality. Beyond meeting basic requirements, people are also demanding customization and comfort.

[0003] Conventional tailgate opening switches are typically placed on the license plate light mounting bracket. This low position makes it difficult to locate visually, especially for taller individuals or those with mobility issues, who must bend, squat, or grope to operate it, making it difficult to operate. Furthermore, the low position of the switch makes it easy for children to accidentally touch it. Furthermore, due to limited space in the tailgate area, the switch requires additional mounting holes, brackets, and wiring, taking up space for the license plate light and camera, hindering the layout of components in the tailgate area. Summary of the Invention

[0004] The object of the present invention is to provide a tailgate switch assembly for a car tailgate and a car tailgate, so as to solve the technical problems that the switch is located low and the arrangement of the switch on the license plate light mounting bracket is not conducive to the arrangement of the components in the back door area.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: In a first aspect, the present invention provides a tailgate switch assembly for a car tailgate, comprising: A switch bracket, wherein a switch assembly hole is opened on the switch bracket, and a fixed welding panel and a switch positioning structure are provided on the switch bracket; The tailgate switch is detachably fixed to the switch bracket through a switch positioning structure. The tailgate switch is provided with a button protrusion and an annular seal. The annular sealing ring is arranged on the periphery of the button protrusion. The button protrusion and the annular seal are located on the inner side of the switch assembly hole.

[0006] Furthermore, one side surface of the fixed welded panel is shaped in accordance with the inner surface of the back door outer panel of the automobile tailgate, and the other side of the fixed welded panel is provided with a switch positioning structure; The fixed welding panel is arranged around the outer periphery of the switch assembly hole.

[0007] Furthermore, the switch positioning structure includes a plurality of switch arms and a plurality of switch screw seats, the switch arms are fixed on the tailgate switch, the switch screw seats are fixed on the switch bracket, and the switch arms are connected to the switch screw seats via screws.

[0008] Furthermore, the angle between the switch screw seat and the fixed welding panel is less than 90°.

[0009] Furthermore, the switch positioning structure further includes a plurality of guide anti-dropping pins and a plurality of switch limiting surfaces, wherein the guide anti-dropping pins are fixedly mounted on the tailgate switch, the switch limiting surfaces are fixedly mounted on the switch bracket, and the tailgate switch is embedded in the plurality of switch limiting surfaces; A switch pre-hanging anti-dropping groove is provided on part of the switch limit surface, and the guide anti-dropping foot is clamped in the switch pre-hanging anti-dropping groove.

[0010] Furthermore, the switch positioning structure also includes an equal number of limiting ribs and a plurality of limiting grooves, wherein a plurality of the limiting ribs are fixed on the tailgate switch, a plurality of the limiting grooves are fixed on the switch bracket, and the limiting ribs are embedded in the limiting grooves.

[0011] Furthermore, the switch bracket is provided with a plurality of reinforcing ribs, and the reinforcing ribs connect the fixed welding panel and the switch positioning structure.

[0012] Furthermore, the annular seal includes a first annular seal and a second annular seal, the first annular seal is located inside the second annular seal, and the key protrusion is located inside the first annular seal; The first annular seal is a rubber seal, and the second annular seal is a sponge seal.

[0013] In a second aspect, the present invention provides a car tailgate, comprising a back door outer panel and a tailgate switch assembly; The back door outer panel is provided with a button passage hole; The fixed welding panel of the tailgate switch assembly is welded to the back door outer panel, and the button protrusion is inserted into the button through hole; The annular seal is located between the tailgate switch and the back door outer panel.

[0014] Furthermore, a tail label is provided on a side of the back door outer panel away from the tail door switch, the button hole has the same shape as the inner hollow of the tail label and passes through, the cross-sectional shape of the button protrusion is the same as the shape of the button through hole, and the top surface of the button protrusion is flush with the outer surface of the back door outer panel; The annular seal includes a first annular seal and a second annular seal; The back door outer panel is provided with a first annular sealing surface and a second annular sealing surface. The first annular seal is attached to the first annular sealing surface, and the second annular seal is attached to the second annular sealing surface.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The switch bracket of the present invention is provided with a switch assembly hole, which provides an installation position for the tailgate switch, so that the tailgate switch can be accurately assembled on the switch bracket. The fixed welding panel facilitates the fixed welding of the switch bracket to the corresponding position of the car's tailgate, thereby increasing the height of the tailgate switch, solving the problem that people with tall stature or limited mobility need to bend over, squat or grope to operate, and that the switch is low and children are prone to accidentally touching it. The tailgate switch is detachably fixed to the switch bracket by a switch positioning structure, which facilitates the installation, removal and replacement of the tailgate switch, while ensuring the accuracy of the tailgate switch installation position and improving the assembly accuracy of the component. The button protrusion provides the user with an operating position, which is convenient for the user to press to open or close the tailgate. The annular seal plays a sealing role, preventing rainwater, dust, etc. from entering the tailgate switch, protecting the internal circuits and components, and improving the reliability and service life of the tailgate switch. The present invention fixes the tailgate switch on the back door outer panel of the automobile tailgate by means of a fixed welding panel of the switch bracket, thereby raising the height of the tailgate switch, avoiding the operational inconvenience and accidental touch of children caused by the low position of the switch, and improving the convenience and safety of user operation; on the other hand, it avoids the space in the license plate light mounting bracket area, which is conducive to the reasonable arrangement of other components in the back door area.

[0016] The present invention securely fastens the tailgate switch assembly to the back door outer panel, preventing it from loosening or shifting due to vibrations or other factors during vehicle operation, thus ensuring the normal operation and reliability of the tailgate switch. Placing the tailgate switch on the back door outer panel improves installation location and operational convenience. Furthermore, the problem of the switch occupying the limited space below the back door due to its low position is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the layout diagram of the back door switch in the existing design; Figure 2 for Figure 1 AA cross-sectional view; Figure 3 This is a diagram showing the arrangement of a tailgate switch on a rear door according to an embodiment of the present invention; Figure 4 for Figure 3 BB cross-sectional view; Figure 5 for Figure 3 A partial enlarged view of Figure 6This is a schematic structural diagram of a switch bracket according to an embodiment of the present invention; Figure 7 It is an exploded view of the overall structure of an embodiment of the present invention.

[0018] Among them: 1. Back door outer panel; 101. Button through hole; 102. First annular sealing surface; 103. Second annular sealing surface; 2. Tail label; 3. Tail gate switch; 301. Button protrusion; 302. First annular seal; 303. Second annular seal; 304. Guide anti-dropping foot; 305. Switch arm; 306. Annular seal; 4. Switch bracket; 401. Switch pre-hanging anti-dropping slot; 402. Switch limiting surface; 403. Fixed welding panel; 404. Switch screw seat; 405. Limiting groove; 406. Reinforcing rib; 407. Screw; 408. Switch assembly hole; 409. Switch positioning structure; 5. License plate light bracket. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0020] It should be noted that the terms "first," "second," and the like in the description of the present invention and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or apparatus.

[0021] The present invention is described in further detail below with reference to the accompanying drawings: See also Figure 4 The present invention provides a tailgate switch assembly for a car tailgate, comprising: a tailgate switch 3 and a switch bracket 4; The switch bracket 4 is provided with a switch mounting hole 408, which provides a mounting location for the tailgate switch 3, allowing it to be accurately assembled on the switch bracket 4. The switch bracket 4 is provided with a fixed welding panel 403 and a switch positioning structure 409. The fixed welding panel 403 facilitates the welding of the switch bracket 4 to the corresponding position of the vehicle's tailgate, raising the height of the tailgate switch 3. This solves the problem of tall people or those with limited mobility having to bend, squat, or grope to operate the switch, and the problem of children being easily accidentally touched by the low position of the switch.

[0022] In an embodiment of the present invention, one side surface of the fixed welding panel 403 conforms to the inner surface of the back door outer panel 1 of the automobile tailgate, which facilitates the welding of the fixed welding panel 403 on the tailgate switch 3 and improves the welding stability. A switch positioning structure 409 is provided on the other side of the fixed welding panel 403.

[0023] See also Figure 4 and Figure 6 In the embodiment of the present invention, the fixed welding panel 403 is arranged around the outer periphery of the switch assembly hole 408.

[0024] See also Figure 6 In this embodiment of the present invention, the switch bracket 4 is provided with a plurality of reinforcing ribs 406, which connect the fixed welding panel 403 and the switch positioning structure 409. This is beneficial to improving the structural strength of the switch bracket 4 and reducing the weight of the switch bracket 4.

[0025] See also Figure 4 The tailgate switch 3 is detachably fixed to the switch bracket 4 through the switch positioning structure 409, which facilitates the installation, removal and replacement of the tailgate switch 3, while ensuring the accuracy of the installation position of the tailgate switch 3 and improving the assembly accuracy of the component.

[0026] See also Figure 6 In the embodiment of the present invention, the switch positioning structure 409 includes a plurality of switch arms 305, a plurality of switch screw seats 404, a plurality of guide anti-dropping feet 304, a plurality of switch limit surfaces 402 See also Figure 7 The switch arm 305 is fixed on the tailgate switch 3 , the switch screw seat 404 is fixed on the switch bracket 4 , and the switch arm 305 is connected to the switch screw seat 404 via a screw 407 .

[0027] See also Figure 6 and Figure 7 , the angle between the switch screw seat 404 and the fixed welding panel 403 is less than 90°.

[0028] See also Figure 4 The guide anti-dropping foot 304 is fixed on the tailgate switch 3, see Figure 6 The switch limiting surface 402 is fixed on the switch bracket 4, and the tailgate switch 3 is embedded in several of the switch limiting surfaces 402, which is conducive to quickly pre-installing the tailgate switch 3 on the switch bracket 4.

[0029] See also Figure 6 A switch pre-hanging anti-dropping slot 401 is opened on part of the switch limit surface 402, and the guide anti-dropping foot 304 is clamped in the switch pre-hanging anti-dropping slot 401.

[0030] In the embodiment of the present invention, the switch positioning structure 409 further includes an equal number of limiting ribs and a plurality of limiting grooves 405, see Figure 6 Several limiting ribs are fixed to the tailgate switch 3, and several limiting grooves 405 are fixed to the switch bracket 4. The limiting ribs are embedded in the limiting grooves 405. This helps ensure the assembly accuracy of the tailgate switch 3. During assembly, the ends of the limiting ribs of the tailgate switch 3 rest on the notches of the limiting grooves 405. After pressing, the limiting ribs slide into the limiting grooves 405, facilitating quick installation of the tailgate switch 3. In addition, the limiting grooves 405 further limit the displacement of the tailgate switch 3, ensuring the stability of the tailgate switch 3 after installation.

[0031] See also Figure 4 The tailgate switch 3 is provided with a button raised portion 301 and an annular seal 306. The annular seal 306 is arranged around the button raised portion 301 and is located inside the switch assembly hole 408. The button raised portion 301 provides a user-operated area, allowing the user to conveniently press to open or close the tailgate. The annular seal 306 acts as a seal, preventing rainwater, dust, and other particles from entering the tailgate switch, protecting the internal circuitry and components and improving the reliability and service life of the tailgate switch.

[0032] See also Figure 4 In the embodiment of the present invention, the annular seal 306 includes a first annular seal 302 and a second annular seal 303 , the first annular seal 302 is located inside the second annular seal 303 , and the key protrusion 301 is located inside the first annular seal 302 ; The first annular seal 302 is a rubber seal, and the second annular seal 303 is a sponge seal. The double seal further improves the sealing performance of the device.

[0033] The present invention fixes the tailgate switch 3 on the back door outer panel of the car tailgate through the fixed welding panel 403 of the switch bracket 4, thereby raising the height of the tailgate switch 3, avoiding the operational inconvenience and accidental touch of children caused by the low position of the switch, and improving the convenience and safety of user operation; on the other hand, it avoids the space in the license plate light mounting bracket area, which is conducive to the reasonable arrangement of other components in the back door area.

[0034] See also Figure 4 , the present invention also discloses a car tailgate, comprising a back door outer panel 1 and a tailgate switch assembly; See also Figure 6 , a button through hole 101 is opened on the back door outer panel 1; The fixed welding panel 403 of the tailgate switch assembly is welded to the back door outer panel 1, firmly fixing the tailgate switch assembly on the back door outer panel 1, ensuring that the tailgate switch assembly will not loosen or shift due to vibration or the like during driving of the car, thereby ensuring the normal use and reliability of the tailgate switch.

[0035] See also Figure 5 The button protrusion 301 is inserted into the button hole 101. Placing the tailgate switch 3 on the back door outer panel 1 improves its installation location. Users can operate the tailgate switch directly by pressing the exposed button protrusion 301 at the appropriate location on the back door outer panel 1, without having to bend, squat, or grope. This greatly improves operational convenience, making it particularly user-friendly for taller people or those with limited mobility. Furthermore, this avoids the problem of the low switch position occupying the limited space below the back door. It also effectively utilizes the space on the back door outer panel 1, allowing for a more rational layout of components in the back door area. This solves the problem of conventional designs where the switch installation occupies space for the license plate light and camera, hindering component placement.

[0036] The annular seal 306 is located between the tailgate switch 3 and the back door outer panel 1. This enhances the seal between the tailgate switch 3 and the back door outer panel 1, ensuring the switch operates properly in harsh environments. Furthermore, this good seal helps reduce noise and vibration during operation, improving user comfort.

[0037] See also Figure 5In an embodiment of the present invention, a tail label 2 is provided on the side of the back door outer panel 1 away from the tailgate switch 3. The button hole 101 has the same shape as the internal hollowing of the tail label 2 and passes through it. The cross-sectional shape of the button protrusion 301 is the same as the shape of the button hole 101. The top surface of the button protrusion 301 is flush with the outer surface of the back door outer panel 1, making the appearance of the entire car tailgate more flat and beautiful. Unlike conventional switches that are located low and easily touched by children by mistake, this design prevents the button protrusion 301 from being too prominent and easily touched by children, reducing the risk of accidental touch. At the same time, the flat surface also reduces the possibility of scratches with other objects during the door opening and closing process, protecting the appearance of the tailgate switch and the back door outer panel 1.

[0038] The annular seal 306 includes a first annular seal 302 and a second annular seal 303; The back door outer panel 1 is provided with a first annular sealing surface 102 and a second annular sealing surface 103 . The first annular seal 302 is attached to the first annular sealing surface 102 , and the second annular seal 303 is attached to the second annular sealing surface 103 .

[0039] The present invention secures the tailgate switch 3 to the outer panel of the vehicle's tailgate via a fixed welded panel 403 of the switch bracket 4. This raises the height of the tailgate switch 3, avoids the inconvenience of operation caused by the low switch position and the problem of accidental touch by children, and improves user convenience and safety. Furthermore, the integrated design reduces the need for additional mounting holes, brackets, and wiring, saving space in the tailgate area and avoiding the space required for the license plate light mounting bracket, facilitating the rational arrangement of other components in the tailgate area. This improves the overall design rationality and aesthetics of the vehicle's tailgate area, increases the reliability and service life of the tailgate switch, and meets the growing demand for vehicle comfort, functionality, and aesthetics.

[0040] Example 2: See also Figures 4 to 7 The purpose of this embodiment is to provide a car tailgate, in which a hole is opened on the back door outer panel 1 to avoid the button protrusion 301, the back door outer panel 1 and the switch bracket 4 are fixed by ultrasonic welding, a sealing gasket is provided between the tailgate switch 3 and the switch bracket 4 to seal the periphery of the button through hole 101, and the tailgate switch 3 and the switch bracket 4 are screwed to ensure the operability, maintainability and firmness of the switch. Compared with conventional solutions, the present invention does not require a gap for gluing between the back door switch bracket 4 and the back door outer panel 1, and has cost advantages while taking into account aesthetics and simplicity.

[0041] In an embodiment of the present invention, a car tailgate includes a back door outer panel 1 , a tailgate label 2 , a tailgate switch 3 and a switch bracket 4 .

[0042] The tailgate outer panel 1 is an injection-molded part, and its main function is to be glued to the tailgate inner panel to form an effective sealed cavity. At the same time, it provides a button through hole 101 to allow the tailgate switch 3 to extend out of the button protrusion 301; and provides a smooth first annular sealing surface 102 to press the sealing sponge strip on the switch to form a waterproof sealing structure.

[0043] The switch bracket 4 is made of the same material as the back door outer panel 1. The switch bracket 4 provides an ultrasonic fixed welding panel 403, and is puncture-welded to the back door outer panel 1 by an ultrasonic welding machine; a switch positioning structure and a pre-assembly structure are provided thereon to ensure the position of the switch relative to the button through hole 101, which is convenient for subsequent screw tightening; the switch bracket provides a boss column for fastening the switch.

[0044] The tailgate switch 3 features a button shaped like the outer panel, surrounded by waterproof foam, forming a waterproof seal with the tailgate outer panel 1. A retaining rib is also provided on the tailgate switch 3, which forms a positioning structure with a retaining groove 405. A guide and anti-drop pin 304 on the tailgate switch 3 forms a simple pre-hook structure with the switch bracket 4 for easy installation. The tailgate switch 3 also features a switch arm 305, which is secured to the switch bracket 4 via screws 407.

[0045] The tail label 2 is attached to the back door outer panel 1 and forms a whole with the button raised portion 301 of the switch, providing a striking reminder mark.

[0046] The present invention has the following beneficial effects: by combining the tail badge 2 with the switch mounting structure and opening provided on the tailgate outer panel 1, the switch, tail badge, and tailgate form a striking, easy-to-operate switch arrangement. Furthermore, the switch is located away from the mounting space for lights and cameras, facilitating the layout of components in the tailgate area.

[0047] Example 3: like Figure 1 and Figure 2 As shown, Figure 2 for Figure 1 Cross-sectional view, showing the existing design in which the back door switch is arranged on the license plate light bracket 5, and the switch is in a hidden area, see Figure 2 , it is visually inconvenient, it is a blind operation, and it is less convenient.

[0048] like Figure 3 The figure shows a schematic diagram of the specific arrangement of the present invention. The tail label 2 is affixed to the tailgate outer panel 1. The recessed area in the center of the tail label, where the lettering is located, serves as the switch pressing area. It is the same color as the tailgate outer panel, maintaining the overall style and coordination of the tailgate. The tailgate switch bracket 4 is welded integrally to the tailgate outer panel 1. The tailgate switch is assembled from the inside out and secured to the bracket 4 with screws 407.

[0049] like Figure 4As shown, Figure 3 The cross-sectional view of the structure shows, from outside to inside, the tail label 2, the back door outer panel 1, the tailgate switch 3 and the switch bracket 4. The tailgate switch 3 is provided with a button protrusion 301, wherein the button protrusion 301 is the same color as the back door outer panel 1. The tailgate switch 3 is provided with a first annular seal 302 and a second annular seal 303. The second annular seal 303 is a dense annular sealing foam, which is bonded to the back door outer panel 1 to form two sealing areas.

[0050] like Figure 5 As shown, Figure 2 The partial enlarged view of the structure ensures the integrity of the tail label and the back door from the external visual perspective. At the same time, the eye-catching position of the tail label 2 reminds the operator of the switch position for easy operation.

[0051] like Figure 6 The figure is a schematic diagram of the structure of the switch bracket 4. The back door outer panel 1 is provided with a button through hole 101, a first annular sealing surface 102, and a second annular sealing surface 103. The switch bracket 4 is provided with a switch pre-hanging anti-dropping slot 401, a switch limit surface 402, a fixed welding panel 403, a switch screw seat 404, and a limit slot 405. The switch pre-hanging anti-dropping slot 401 is used as the switch pre-assembly anti-dropping limit slot; the switch limit surface 402 is used for the Z-direction limit of the tailgate switch 3; the fixed welding panel 403 is the welding area between the switch bracket 4 and the back door outer panel 1; the limit groove 405 is the Y-direction limit groove provided by the switch bracket 4 to the tailgate switch 3.

[0052] like Figure 7 The figure shows an exploded view of the overall structure of the present invention. During the assembly of the tailgate switch 3 from the inside out, the key protrusion 301 thereon first passes through the key through hole 101. The guide anti-dropout pin 304 thereon engages with the switch pre-hanging anti-dropout slot 401 of the switch bracket 4, performing a pre-fixing function. The switch is then fastened with screws.

[0053] The above content is only for explaining the technical idea of ​​the present invention and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the present invention.

Claims

1. A tailgate switch assembly for a car tailgate, characterized in that: include: A switch bracket (4), wherein a switch assembly hole (408) is provided on the switch bracket (4), and a fixed welding panel (403) and a switch positioning structure (409) are provided on the switch bracket (4); The tailgate switch (3) is detachably fixed to the switch bracket (4) via a switch positioning structure (409), and the tailgate switch (3) is provided with a button protrusion (301) and an annular seal (306), wherein the annular seal (306) is arranged around the periphery of the button protrusion (301), and the button protrusion (301) and the annular seal (306) are located inside the switch assembly hole (408).

2. A tailgate switch assembly for a car tailgate according to claim 1, characterized in that: One side surface of the fixed welding panel (403) conforms to the inner surface of the back door outer panel (1) of the automobile tailgate, and the other side of the fixed welding panel (403) is provided with a switch positioning structure (409); The fixed welding panel (403) is arranged around the periphery of the switch assembly hole (408).

3. The tailgate switch assembly for a car tailgate according to claim 1, characterized in that: The switch positioning structure (409) comprises a plurality of switch arms (305) and a plurality of switch screw seats (404), wherein the switch arms (305) are fixed on the tailgate switch (3), the switch screw seats (404) are fixed on the switch bracket (4), and the switch arms (305) are connected to the switch screw seats (404) via screws (407).

4. The tailgate switch assembly for a car tailgate according to claim 3, characterized in that: The included angle between the switch screw seat (404) and the fixed welding panel (403) is less than 90°.

5. The tailgate switch assembly for a car tailgate according to claim 3, characterized in that: The switch positioning structure (409) further comprises a plurality of guide anti-dropping pins (304) and a plurality of switch limiting surfaces (402), wherein the guide anti-dropping pins (304) are fixedly mounted on the tailgate switch (3), the switch limiting surfaces (402) are fixedly mounted on the switch bracket (4), and the tailgate switch (3) is embedded in the plurality of switch limiting surfaces (402); A switch pre-hanging anti-dropout slot (401) is provided on a portion of the switch limit surface (402), and the guide anti-dropout pin (304) is clamped in the switch pre-hanging anti-dropout slot (401).

6. The tailgate switch assembly for a car tailgate according to claim 3, characterized in that: The switch positioning structure (409) further comprises an equal number of limiting ribs and a plurality of limiting grooves (405), wherein the plurality of limiting ribs are fixedly mounted on the tailgate switch (3), the plurality of limiting grooves (405) are fixedly mounted on the switch bracket (4), and the limiting ribs are embedded in the limiting grooves (405).

7. The tailgate switch assembly for a car tailgate according to claim 1, characterized in that: A plurality of reinforcing ribs (406) are provided on the switch bracket (4), and the reinforcing ribs (406) are connected to the fixed welding panel (403) and the switch positioning structure (409).

8. The tailgate switch assembly for a car tailgate according to claim 1, characterized in that: The annular seal (306) comprises a first annular seal (302) and a second annular seal (303), the first annular seal (302) is located inside the second annular seal (303), and the key protrusion (301) is located inside the first annular seal (302); The first annular seal (302) is a rubber seal, and the second annular seal (303) is a sponge seal.

9. A car tailgate, characterized in that: It comprises a back door outer panel (1) and a tailgate switch assembly according to any one of claims 1 to 9; The back door outer panel (1) is provided with a button passage hole (101); The fixed welding panel (403) of the tailgate switch assembly is welded to the back door outer panel (1), and the button protrusion (301) is inserted into the button through hole (101); The annular seal (306) is located between the tailgate switch (3) and the back door outer panel (1).

10. The automobile tailgate according to claim 9, characterized in that: A tail label (2) is provided on a side of the back door outer panel (1) away from the tail door switch (3); the button through hole (101) is the same shape as the inner hollow of the tail label (2) and is continuous; the cross-sectional shape of the button protrusion (301) is the same shape as the button through hole (101); and the top surface of the button protrusion (301) is flush with the outer surface of the back door outer panel (1); The annular seal (306) includes a first annular seal (302) and a second annular seal (303); A first annular sealing surface (102) and a second annular sealing surface (103) are provided on the back door outer panel (1); the first annular seal (302) is attached to the first annular sealing surface (102); and the second annular seal (303) is attached to the second annular sealing surface (103).

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