Waterproof structure of antenna wire outlet

Abstract

The utility model relates to the technical field of automobile parts, in particular to a waterproof structure of an antenna wire outlet, which comprises an upper shell and a lower shell, an upper shell wire bunching cavity is formed at one end of the upper shell, a waterproof pad and at least two stop walls are arranged in the upper shell wire bunching cavity, the waterproof pad is arranged between the two stop walls, and the waterproof pad is arranged between the two stop walls. The waterproof pad is arranged on the two blocking walls, the two ends of the waterproof pad abut against the two blocking walls respectively, the blocking walls are provided with first through holes, the waterproof pad is provided with second through holes, and a wire harness penetrates through the first through holes and the second through holes and is in interference fit with the waterproof pad. The waterproof structure provided by the utility model provides multiple protections at the wire outlet, ensures the waterproof and dustproof capabilities of the antenna, and has the advantages of good waterproof effect, good durability and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a waterproof structure of an antenna outlet used in an automobile. Background Art

[0002] With the continuous development of antenna technology, in order to optimize the performance of the vehicle and meet the growing functional requirements, more and more antennas are placed on the wet areas of the car, such as the hood, front bumper or near the rear windshield. These wet areas are often exposed to liquid environments such as rain, car wash water, muddy water, etc. Therefore, it is necessary to put forward higher requirements on the waterproof performance of the antenna box on the car, especially the waterproof performance of the antenna outlet. In the prior art, at the antenna outlet, an elastic seal with a threading hole is usually used to interfere with the outlet and the antenna to achieve a waterproof function. However, the waterproof structure supporting the elastic seal in the antenna box has poor stability, cannot provide multiple protections, and has weak waterproof ability. Utility Model Content

[0003] The utility model provides an antenna wire outlet waterproof structure, which provides multiple protections at the wire outlet, ensures the waterproof and dustproof capabilities of the antenna, and has the advantages of good waterproof effect and good stability.

[0004] A waterproof structure for an antenna outlet comprises an upper shell and a lower shell, wherein an upper shell harness cavity is formed at one end of the upper shell, a waterproof pad and at least two stop walls are arranged in the upper shell harness cavity, the waterproof pad is arranged between the two stop walls, and the two ends of the waterproof pad are respectively abutted against the two stop walls, the stop wall is provided with a first through hole, the waterproof pad is provided with a second through hole, the wiring harness is passed through the first through hole and the second through hole and is interference fit with the waterproof pad.

[0005] In the above technical solution, the upper shell and the lower shell are sealed and connected as one body to realize the waterproof function of the main part of the antenna box; an upper shell harness cavity is formed at one end of the upper shell, and at least two stop walls are arranged in the upper shell harness cavity. The waterproof pad is arranged between the two stop walls to realize the side pressure interference fit. Specifically, the two ends of the waterproof pad are respectively against the two stop walls; the stop wall is provided with a first through hole, and the waterproof pad is provided with a second through hole. The wire harness is passed through the first through hole and the second through hole, and is interference fit with the waterproof pad at the second through hole, so that the inside of the antenna outlet is isolated from the outside, and the waterproof function at the outlet is realized. By providing at least two stop walls and making them side pressure fit with the waterproof pad, a multi-protection structure is formed at the antenna outlet. While the structure is stable and reliable, it significantly improves the waterproof performance.

[0006] Furthermore, the retaining wall is formed as a convex arch structure.

[0007] In the above technical solution, in order to ensure that the retaining wall in the upper shell harness cavity is tightly connected to the lower shell without affecting the waterproof effect of the side pressure between the retaining wall and the waterproof pad, the retaining wall is set to an arch structure so that it bulges to avoid the waterproof pad.

[0008] Furthermore, a lower shell cable bundle cavity is formed at one end of the lower shell, and a groove seat matching with the stop wall is provided in the lower shell cable bundle cavity.

[0009] In the above technical solution, a lower shell harness cavity is formed at one end of the lower shell, which is connected with the upper shell harness cavity. A groove seat matching the arch structure of the retaining wall is provided in the lower shell harness cavity. The retaining wall and the groove seat are sealed and connected as a whole, further improving the waterproof effect of the antenna box body.

[0010] Furthermore, an upper shell arc groove is provided at the end of the upper shell beam cavity, and a lower shell arc groove is provided at the end of the lower shell beam cavity, and the upper shell arc groove cooperates with the lower shell arc groove to form a wiring opening.

[0011] In the above technical solution, the upper shell arc groove and the lower shell arc groove are provided, and they cooperate to form a clear wiring passage, so that the wire harness can enter and leave the harness cavity in an orderly manner.

[0012] Furthermore, a diameter of the first through hole is smaller than an outer diameter of the waterproof pad.

[0013] In the above technical solution, the diameter of the first through hole is smaller than the outer diameter of the waterproof pad, realizing the interference side pressure between the waterproof pad and the stop wall. It is difficult for external water to flow into the second through hole through the first through hole, or into the first through hole through the second through hole, so it has good waterproof performance.

[0014] Furthermore, a reinforcing rib is provided on a side of the retaining wall facing away from the waterproof pad.

[0015] In the above technical solution, reinforcing ribs are provided on the side of the retaining wall that is strongly away from the waterproof pad to improve the durability of the retaining wall, making it more stable and less prone to damage when subjected to external pressure, vibration or impact, thereby further consolidating its waterproof capability.

[0016] Furthermore, a positioning cylinder is provided in the upper shell, and a positioning pin which is matched and connected with the positioning cylinder is provided in the lower shell.

[0017] In the above technical solution, a positioning cylinder is provided in the upper shell body, and a positioning pin which cooperates with the positioning cylinder is provided in the lower shell body. The cooperation between the positioning cylinder and the positioning pin can ensure that the upper and lower shell bodies can quickly and accurately find the correct position during assembly, thereby greatly simplifying the assembly process of the upper and lower shell bodies. In addition, after the positioning cylinder and the positioning pin are connected, the upper and lower shell bodies can avoid displacement during the closed connection to affect the connection accuracy.

[0018] Furthermore, a fixing plate is provided on the outer peripheral side of the upper shell, and a small hole is provided on the fixing plate.

[0019] In the above technical solution, a fixing plate is provided on the outer peripheral side of the upper shell body, and small holes are provided on the fixing plate. Bolts can pass through the small holes to fix the antenna box to the car, which greatly improves the stability of the installation of the antenna box and ensures that the antenna can maintain stable performance under high-speed driving, bumpy roads or severe weather conditions.

[0020] Compared with the prior art, the beneficial effects of the utility model are as follows: at least two retaining walls are arranged in the upper shell wiring cavity to apply lateral pressure to the waterproof pad, the waterproof pad fits tightly around the wire outlet, and at least two retaining walls form multiple waterproof barriers for the antenna wire outlet, thereby improving the stability of the waterproof structure and achieving better waterproof performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The figure is a schematic diagram of the overall structure of an embodiment of the utility model.

[0022] Figure 2 It is a side sectional view of an embodiment of the utility model.

[0023] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0024] Figure 4 This is a schematic diagram of the upper shell structure of an embodiment of the utility model.

[0025] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0026] Figure 6 This is a schematic diagram of the lower shell structure of an embodiment of the utility model.

[0027] Description of the accompanying drawings: upper shell 1, upper shell harness cavity 11, stop wall 12, first through hole 121, waterproof pad 13, second through hole 131, upper shell arc groove 14, reinforcing rib 15, positioning cylinder 16, fixing plate 17, lower shell 2, lower shell harness cavity 21, groove seat 22, lower shell arc groove 23, positioning pin 24, wiring port 25, DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the accompanying drawings. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.

[0029] refer to Figures 1 to 6A non-limiting embodiment of the utility model is a waterproof structure for an antenna outlet, comprising an upper shell 1 and a lower shell 2, wherein an upper shell harness cavity 11 is formed at one end of the upper shell 1, a waterproof pad 13 and at least two stop walls 12 are provided in the upper shell harness cavity 11, the waterproof pad 13 is provided between the two stop walls 12, and the two ends of the waterproof pad 13 are respectively against the two stop walls 12, the stop wall 12 is provided with a first through hole 121, the waterproof pad 13 is provided with a second through hole 131, the wiring harness is passed through the first through hole 121 and the second through hole 131 and is interference fit with the waterproof pad 13.

[0030] In the above technical solution, the upper shell 1 and the lower shell 2 are sealed and connected to form a whole, so as to realize the waterproof function of the main part of the antenna box. In this embodiment, after the upper shell 1 and the lower shell 2 are matched and connected, the upper and lower shells 2 are melted into one by ultrasonic welding. In other embodiments, a sealing ring or glue point pressing seal can also be used. An upper shell harness cavity 11 is formed at one end of the upper shell 1, and at least two stop walls 12 are arranged in the upper shell harness cavity 11. The waterproof pad 13 is arranged between the two stop walls 12 to realize the side pressure interference fit. Specifically, the waterproof pad 13 adopts a cylindrical rubber pad, and its two ends respectively abut the two stop walls 12, and use its own elastic force to fit tightly with the stop wall 12. Of course, the waterproof pad 13 can also be other materials or other shapes with waterproof function. The retaining wall 12 is provided with a first through hole 121, and the waterproof pad 13 is provided with a second through hole 131. The wiring harness is passed through the first through hole 121 and the second through hole 131, and is interference-fitted with the waterproof pad 13 at the second through hole 131, so that the inside of the antenna outlet is isolated from the outside, and the waterproof function at the outlet is achieved. The number of placed wiring harnesses can be adjusted by the method of injection molding the number of first through holes 121 of the retaining wall 12 and increasing or decreasing the number of waterproof pads 13. In this embodiment, two first through holes 121 are provided on a retaining wall 12, so two groups of wiring harnesses are used. In order to make it difficult for external water to flow into the second through hole 131 through the first through hole 121, or flow into the first through hole 121 through the second through hole 131, the diameter of the first through hole 121 is smaller than the outer diameter of the waterproof pad 13, so that the interference side pressure between the waterproof pad 13 and the retaining wall 12 is achieved, and good waterproof performance is achieved. The utility model provides at least two stop walls 12 to be press-fitted with the waterproof pad 13 to form a multiple protection structure at the antenna outlet. The structure is stable and reliable and significantly improves the waterproof performance.

[0031] refer to Figure 4 and Figure 6In a non-limiting embodiment of the utility model, a lower shell harness cavity 21 is formed at one end of the lower shell 2, which is connected with the upper shell harness cavity 11. In this embodiment, in order to prevent the waterproof effect of the stop wall 12 and the side pressure of the waterproof pad 13 from being affected when the stop wall 12 in the upper shell harness cavity 11 is connected with the lower shell harness cavity 21 by ultrasonic wire melting, the stop wall 12 is set to an arch structure, which is raised to avoid the waterproof pad 13. Among them, a groove seat 22 that matches the stop wall 12 is provided in the lower shell harness cavity 21, and the stop wall 12 and the groove seat 22 are ultrasonically melted and connected as a whole, further improving the waterproof effect of the antenna box body. Of course, the stop wall 12 and the groove seat 22 can be connected as a whole by a sealing ring, glue point pressing seal, or other methods.

[0032] refer to Figure 1 , Figure 5 as well as Figure 6 In a non-limiting embodiment of the utility model, an upper shell arc groove 14 is provided at the end of the upper shell harness cavity 11, and a lower shell arc groove 23 is provided at the end of the lower shell harness cavity 21. The upper shell arc groove 14 cooperates with the lower shell arc groove 23 to form a clear wiring opening 25, so that the wiring harness can enter and leave the harness cavity in an orderly manner. In this embodiment, the first through hole 121, the second through hole 131, and the wiring opening 25 are all arranged at concentric positions, so that the wiring harness does not need to be bent inside the antenna box, and the waterproof pad 13 is prevented from having a poor side pressure effect due to the bending of the wire, thereby affecting the waterproof effect.

[0033] refer to Figure 5 In a non-limiting embodiment of the utility model, a reinforcing rib 15 is provided on the side of the retaining wall 12 away from the waterproof pad 13. In the above technical solution, the reinforcing rib 15 is provided on the side of the retaining wall 12 away from the waterproof pad 13, which can improve the durability of the retaining wall 12, make it more stable and not easy to be damaged when subjected to external pressure, vibration or impact, and further consolidate the waterproof ability.

[0034] refer to Figure 4 and Figure 6 In a non-limiting embodiment of the utility model, a positioning cylinder 16 is provided in the upper shell 1, and a positioning pin 24 is provided in the lower shell 2 to cooperate with the positioning cylinder 16. By providing the positioning cylinder 16 in the upper shell 1 and providing the positioning pin 24 to cooperate with the positioning cylinder 16 in the lower shell 2, the cooperation between the positioning cylinder 16 and the positioning pin 24 can ensure that the upper and lower shells 2 can quickly and accurately find the correct position during assembly, greatly simplifying the assembly process of the upper and lower shells 2; in addition, after the positioning cylinder 16 and the positioning pin 24 are connected, the displacement of the upper and lower shells 2 during the closed connection can be avoided to affect the connection accuracy. In this embodiment, a group of positioning cylinders 16 and positioning pins 24 are respectively provided at a group of opposite sides of the upper and lower shells 2. The utility model does not limit the specific position and number of the positioning cylinder 16 and the positioning pin 24, and of course other connection methods and limiters can also be used.

[0035] refer to Figure 1 and Figure 4 In a non-limiting embodiment of the utility model, a fixing plate 17 is provided on the outer peripheral side of the upper shell 1, and a small hole is provided on the fixing plate 17. In the above technical scheme, a fixing plate 17 is provided on the outer peripheral side of the upper shell 1, and a small hole is provided on the fixing plate 17. Bolts can pass through the small hole to fix the antenna box on the car, which greatly improves the stability of the installation of the antenna box and ensures that the antenna can maintain stable performance under high-speed driving, bumpy roads or severe weather conditions. In this embodiment, three fixing plates 17 are provided on the outer peripheral side of the upper shell 1. Specifically, a fixing plate 17 is provided beside the upper shell harness cavity 11 to ensure the stability of the wiring harness placement, and two fixing plates 17 are provided on the opposite side of the upper shell harness cavity 11 to ensure the stability of the antenna box.

[0036] In summary, the utility model forms a multiple protection structure at the antenna outlet by setting at least two retaining walls 12 to be side-pressed with the waterproof pad 13. The structure is stable and reliable and significantly improves the waterproof performance. At the same time, the outlet holes can be increased or decreased by adding or decreasing the waterproof pads 13 and replacing the inserts of the injection molded shell, so it is practical.

[0037] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An antenna outlet waterproof structure, comprising an upper shell and a lower shell, characterized in that: An upper shell harness cavity is formed at one end of the upper shell, and a waterproof pad and at least two stop walls are provided in the upper shell harness cavity. The waterproof pad is provided between the two stop walls, and the two ends of the waterproof pad are respectively against the two stop walls. The stop wall is provided with a first through hole, and the waterproof pad is provided with a second through hole. The wiring harness is passed through the first through hole and the second through hole and has an interference fit with the waterproof pad.

2. The antenna outlet waterproof structure according to claim 1, characterized in that: The retaining wall is formed as a convex arch structure.

3. According to claim 2, the waterproof structure of the antenna outlet is characterized in that: A lower shell cable bundle cavity is formed at one end of the lower shell, and a groove seat matched with the stop wall is arranged in the lower shell cable bundle cavity.

4. The waterproof structure of the antenna outlet according to claim 3, characterized in that: An upper shell arc groove is provided at the end of the upper shell beam cavity, and a lower shell arc groove is provided at the end of the lower shell beam cavity. The upper shell arc groove cooperates with the lower shell arc groove to form a wiring opening.

5. The waterproof structure of the antenna outlet according to claim 1, characterized in that: The diameter of the first through hole is smaller than the outer diameter of the waterproof pad.

6. The waterproof structure of the antenna outlet according to claim 1, characterized in that: A reinforcing rib is provided on one side of the stop wall away from the waterproof pad.

7. The waterproof structure for the antenna outlet according to any one of claims 1 to 6, characterized in that: A positioning cylinder is arranged in the upper shell body, and a positioning pin which is matched and connected with the positioning cylinder is arranged in the lower shell body.

8. The waterproof structure of the antenna outlet according to claim 7, characterized in that: A fixing plate is provided on the outer peripheral side of the upper shell, and a small hole is provided on the fixing plate.

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