Novel automobile overhead antenna waterproof structure
By eliminating the outer rubber gasket and using an inner waterproof foamed rubber ring that fits tightly against the vehicle body, the corrosion risk and aesthetic issues of the roof-mounted antenna waterproof structure are resolved, resulting in a simpler structure, reduced costs, and improved aesthetics.
Patent Information
- Application Number
- CN202422935353.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-11-29
AI Technical Summary
Existing waterproof structures for car roof-mounted antennas pose a risk of water vapor corroding the circuit board, and the outer rubber ring's color does not match the car body, affecting aesthetics.
An inner waterproof foamed rubber ring is used, eliminating the outer rubber gasket. The waterproof foamed rubber ring fits tightly to the vehicle body, and a seal is achieved by combining the antenna body fixing studs and the body sheet metal fixing buckles. EPDM JEP-2015 material is used to improve the waterproof effect.
It achieves a simple structure, reduced cost, and an outer shell color that matches the body color, improving aesthetics and enhancing waterproof performance.
Smart Images

Figure CN223566884U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of waterproof materials of vehicle roof-mounted antennas, in particular to a novel waterproof structure of a roof-mounted antenna of an automobile. BACKGROUND
[0002] The waterproof structure of the existing roof-mounted antenna product mainly relies on two rubber gaskets, the outer rubber gasket is attached to the roof of the vehicle body, and the inner rubber gasket mainly protects the mounting hole of the roof-mounted antenna and is attached to the vehicle body in a sealed manner; a gap exists between the outer rubber gasket and the inner rubber gasket, water vapor exists under the action of thermal expansion and cold contraction, and there is a risk of corrosion of the circuit board in a long-time case; in addition, because the rubber gasket is black, the color of the roof-mounted antenna is consistent with the color of the vehicle body, and there is diversity, so that the black rubber gasket is inconsistent with the color of the vehicle body, affecting the aesthetic degree of the color of the vehicle body. CONTENT OF THE UTILITY MODEL
[0003] In order to solve the above problems, the application provides a novel waterproof structure of a roof-mounted antenna of an automobile.
[0004] The novel waterproof structure of the roof-mounted antenna of the automobile provided by the application comprises a roof-mounted antenna shell body and a mounting and fixing nut, characterized in that an antenna body fixing stud is fixed to the bottom of the roof-mounted antenna shell body, a positioning groove is formed in the outer surface of the antenna body fixing stud, a waterproof foamed rubber ring is fixed to the bottom of the roof-mounted antenna shell body, and the antenna body fixing stud is clamped with an antenna body and a vehicle body sheet metal fixing buckle through the positioning groove.
[0005] Preferably, the mounting and fixing nut is matched with the antenna body fixing stud, and the antenna body fixing stud is matched with the mounting hole of the outer vehicle body roof.
[0006] Preferably, a wire harness is connected to the bottom of the roof-mounted antenna shell body, and a plug-in is fixedly connected to the end of the wire harness away from the roof-mounted antenna shell body.
[0007] Preferably, the waterproof foamed rubber ring is attached to the surface of the outer vehicle body.
[0008] In summary, the application has the following beneficial technical effects: 1. simple structure, the outer rubber gasket is cancelled, only the waterproof structure around the inner antenna mounting hole is reserved, and the structure is simple; 2. cost reduction, the outer rubber gasket is cancelled, only the inner waterproof closed-cell foamed rubber is used, and the single-piece cost of the parts can be effectively reduced; 3. aesthetic degree improvement, after the outer rubber gasket is cancelled, the color of the shell of the roof-mounted antenna is consistent with the color of the vehicle body, and there is no black rubber in the middle. BRIEF DESCRIPTION OF DRAWINGS
[0009] Figure 1 It is a structure diagram of the roof-mounted antenna shell body in the application.
[0010] Figure 2 is the structure diagram of the top-mounted antenna shell body and the waterproof foam rubber ring in the application;
[0011] Figure 3 is the structure diagram of the mounting and fixing nut in the application;
[0012] Figure 4 is the schematic diagram of the top-mounted antenna wire harness plug-in in the application.
[0013] Mark explanation: 1, top-mounted antenna shell body; 2, antenna body fixing stud; 3, positioning groove; 4, waterproof foam rubber ring; 5, mounting and fixing nut; 6, antenna body and vehicle body sheet metal fixing buckle. DETAILED DESCRIPTION
[0014] The following will be combined with the Figure 1 - Figure 4 The application is further described in detail.
[0015] Embodiment:
[0016] A new type of automobile top-mounted antenna waterproof structure, referring to Figure 1 - Figure 4 , comprising a top-mounted antenna shell body 1 and a mounting and fixing nut 5, characterized in that: the top-mounted antenna shell body 1 is fixed with an antenna body fixing stud 2 at the bottom, the outer surface of the antenna body fixing stud 2 is provided with a positioning groove 3, the bottom of the top-mounted antenna shell body 1 is fixed with a waterproof foam rubber ring 4, and the antenna body fixing stud 2 is clamped with an antenna body and vehicle body sheet metal fixing buckle 6 through the positioning groove 3;
[0017] Insert the top-mounted antenna body fixing stud 2 into the vehicle body roof mounting hole, and clamp the antenna body and vehicle body sheet metal fixing buckle 6; tighten the mounting and fixing nut 5 with a torque wrench, torque 7±1N.m; connect the top-mounted antenna plug-in with the wire harness end plug-in to complete the installation.
[0018] Referring to Figure 1 - Figure 4 , the mounting and fixing nut 5 is matched with the antenna body fixing stud 2, and the antenna body fixing stud 2 is matched with the external vehicle body roof mounting hole.
[0019] Referring to Figure 1 - Figure 4 , the bottom of the top-mounted antenna shell body 1 is connected with a wire harness, and the end of the wire harness away from the top-mounted antenna shell body 1 is fixedly connected with a plug-in.
[0020] Referring to Figure 1 - Figure 4 , the waterproof foam rubber ring 4 is in close contact with the external vehicle body surface.
[0021] Working principle: cancel the outer waterproof rubber, only keep the waterproof structure around the inner antenna installation hole, the waterproof foam rubber ring 4 adopts new EPDM JEP-2015 material closed cell foam rubber, and the waterproof effect is excellent;
[0022] After canceling the outer rubber gasket, the color of the top-mounted antenna shell is consistent with the color of the vehicle body, and there is no black rubber in the middle.
[0023] The above describes an exemplary embodiment of a surveying instrument provided by the present disclosure which is convenient to fold and carry with reference to a preferred embodiment, however, those skilled in the art can understand that various modifications and changes can be made to the above specific embodiments, and various technical features and structures proposed by the present disclosure can be combined without departing from the concept of the present disclosure, and the protection scope of the present disclosure is determined by the appended claims.
Claims
1. A novel waterproof structure of an automobile roof antenna, comprising a roof antenna shell body (1), a mounting and fixing nut (5), characterized in that: The top antenna shell body (1) is fixed with an antenna body fixing stud (2) at the bottom, the outer surface of the antenna body fixing stud (2) is provided with a positioning groove (3), the top antenna shell body (1) is fixed with a waterproof foamed rubber ring (4) at the bottom, and the antenna body fixing stud (2) is clamped with an antenna body and vehicle body sheet metal fixing buckle (6) through the positioning groove (3).
2. The novel waterproof structure of the roof antenna of the automobile according to claim 1, characterized in that: The mounting fixing nut (5) is matched with the antenna body fixing stud (2), and the antenna body fixing stud (2) is matched with an external vehicle body top cover mounting hole.
3. The novel waterproof structure of the roof antenna of the automobile according to claim 1, characterized in that: The top antenna shell body (1) is connected with a wire harness at the bottom, and one end of the wire harness away from the top antenna shell body (1) is fixedly connected with a plug-in element.
4. The novel waterproof structure of roof-mounted antenna for automobile according to claim 1, characterized in that: The waterproof foamed rubber ring (4) is attached to the surface of the external vehicle body.