Waterproof structure and vehicle-mounted antenna

Abstract

The utility model provides a waterproof structure and vehicle antenna relates to vehicle antenna technical field. Waterproof structure includes waterproof shell one of setting up joint component and waterproof shell two of setting up slot hole, and slot hole and joint component cooperation is used for connecting waterproof shell one and waterproof shell two, and the inside of waterproof shell one and waterproof shell two is provided with recess and waterproof groove, is provided with water absorption sponge in recess, is provided with a plurality of waterproof module for water absorption in waterproof groove, vehicle antenna includes antenna body, and one end of antenna body is provided with receiving head, and the end away from receiving head of antenna body is provided with processor, and the joint of processor and antenna body is provided with waterproof structure for preventing water vapor along the joint and enters the inside of processor. The utility model passes through the synergistic effect of triple protection system, solved the internal circuit corrosion problem of traditional vehicle antenna because of sealing ageing and water vapor penetration, has improved the long -term reliability and service life under the harsh environment obviously.

Description

Technical Field

[0001] This utility model relates to the field of vehicle antenna technology, and in particular to a waterproof structure and a vehicle antenna. Background Technology

[0002] As a key component of modern automotive communication, navigation, broadcasting, and data transmission systems, the stability of vehicle antenna performance directly affects the safety and efficiency of vehicle information interaction.

[0003] Traditional vehicle antennas typically consist of a receiver head exposed outside the vehicle, an antenna body containing sophisticated circuitry, and a processor unit connected to the vehicle body. Due to their extremely harsh operating environment, requiring constant exposure to rain, snow, high-pressure water jets from car washes, temperature fluctuations, humidity, and salt spray, the antenna, especially the waterproof and sealing performance of its internal electronic component seams, is subject to extremely high requirements.

[0004] Currently, the commonly used structure in the industry involves installing a single rubber sealing ring or O-ring at the joints of various antenna components, such as the connection between the antenna body and the processor, and then filling it with sealant to prevent the intrusion of liquid water. This solution can prevent direct liquid splashes or short-term immersion to a certain extent, but its protective capability has significant limitations. On the one hand, rubber sealing rings are prone to aging, plastic deformation, or cracking under long-term exposure to sunlight, temperature cycling, and mechanical stress, leading to a decrease in their pre-tightening force and a reduction in sealing effectiveness. On the other hand, traditional sealing structures lack effective mechanisms to deal with pervasive water vapor, especially pressurized water vapor. Moisture can still slowly penetrate into the device through microscopic gaps. This moisture cannot be discharged on its own and will corrode sensitive circuit components, processor chips, and their solder joints over a long period of time, leading to oxidation of metal circuits, short circuits, electrochemical migration, and even complete device failure. Utility Model Content

[0005] On one hand, this application provides a waterproof structure, including a waterproof shell one and a waterproof shell two. The surface of the waterproof shell one is provided with a snap-fit ​​component, and the surface of the waterproof shell two is provided with a groove corresponding to the snap-fit ​​component. The groove and the snap-fit ​​component are used to connect the waterproof shell one and the waterproof shell two. The inner side of the waterproof shell one and the waterproof shell two is provided with a groove, and the groove is provided with a water-absorbing sponge. The inner side of the waterproof shell one and the waterproof shell two is provided with a waterproof channel, and the waterproof channel is provided with a plurality of waterproof modules for absorbing water.

[0006] Preferably, the protective module includes a storage tray, and the storage tray is provided with activated carbon particles. By providing activated carbon particles, the moisture absorption capacity of the waterproof structure is enhanced, effectively reducing the internal humidity.

[0007] Preferably, a woven mesh is fixedly provided on the surface of the storage tray, and the woven mesh is made of nylon. The nylon woven mesh prevents the leakage of activated carbon particles while maintaining breathability, thus improving the durability of the waterproof module.

[0008] Preferably, the snap-fit ​​assembly includes a rubber post fixedly connected to the waterproof shell one. The end of the rubber post away from the waterproof shell one is integrally provided with a conical head, and the conical head is interference-fitted with the groove of the waterproof shell two. The interference fit between the rubber post and the conical head provides a more reliable connection seal, preventing moisture from entering from the joint.

[0009] Preferably, the joint between the first waterproof shell and the second waterproof shell is coated with waterproof sealant. The application of waterproof sealant further strengthens the barrier at the joint and effectively prevents liquid penetration.

[0010] Preferably, in another aspect, this application also provides a waterproof vehicle antenna, including an antenna body, and a receiver head is provided at one end of the antenna body. A processor is provided at the end of the antenna body away from the receiver head, and the aforementioned waterproof structure is provided at the joint between the processor and the antenna body to prevent moisture from entering the processor along the joint.

[0011] Preferably, one end of the processor is provided with a connector, and the connector is fixedly connected to the vehicle body. The connector fixes the processor to the vehicle body, which improves the installation stability of the antenna and reduces the risk of loosening.

[0012] Preferably, the interface between the connector and the vehicle body is coated with a polyurethane sealant layer, which ensures the watertightness of the interface and prevents moisture from entering through the vehicle body interface.

[0013] This utility model provides a waterproof structure and vehicle-mounted antenna, which, compared with the prior art: This invention forms a reliable external physical seal through the interference fit of the snap-fit ​​component and the waterproof sealant, effectively preventing liquid water from entering. The internally designed absorbent sponge and activated carbon waterproof module constitute multiple moisture-absorbing defenses, which can actively absorb and lock in the infiltrated moisture and water vapor, reducing internal humidity. This triple protection system works synergistically to solve the problem of internal circuit corrosion caused by aging failure and slow water vapor penetration in traditional sealing structures, greatly improving the long-term reliability and service life of the vehicle antenna in harsh environments. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of an embodiment of the present utility model; Figure 2 This is a three-dimensional structural diagram of the vehicle-mounted antenna according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the disassembled waterproof structure according to an embodiment of the present utility model; Figure 4 This is a three-dimensional structural diagram of the snap-fit ​​assembly according to an embodiment of the present utility model; Figure 5 This is a three-dimensional structural diagram of the waterproof module according to an embodiment of the present invention.

[0016] icon: 1. Antenna body; 2. Waterproof shell one; 10. Receiver head; 11. Processor; 12. Connector; 20. Waterproof shell two; 21. Snap-fit ​​assembly; 22. Groove; 23. Absorbent sponge; 24. Waterproof groove; 25. Waterproof module; 210. Rubber post; 211. Conical head; 250. Storage tray; 251. Braided mesh. Detailed Implementation

[0017] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0018] Please refer to Figure 1 and Figure 3 This utility model provides a waterproof structure, including a waterproof shell 2 and a waterproof shell 20. The surface of the waterproof shell 2 is provided with a snap-fit ​​component 21, and the surface of the waterproof shell 20 is provided with a groove corresponding to the snap-fit ​​component 21. The groove and the snap-fit ​​component 21 are used to connect the waterproof shell 2 and the waterproof shell 20. The inner side of the waterproof shell 2 and the waterproof shell 20 is provided with a groove 22, and the groove 22 is provided with a water-absorbing sponge 23. The inner side of the waterproof shell 2 and the waterproof shell 20 is provided with a waterproof groove 24, and the waterproof groove 24 is provided with a plurality of waterproof modules 25 for water absorption. The snap-fit ​​component 21 and the groove are used to quickly lock the waterproof shell 2 and the waterproof shell 20. The water-absorbing sponge 23 inside the shell absorbs the liquid water that has seeped in, and the waterproof modules 25 in the waterproof groove 24 adsorb water vapor, thus achieving triple protection of physical sealing, liquid water absorption and water vapor adsorption.

[0019] To further strengthen the barrier at the joint and effectively prevent liquid penetration, waterproof sealant is applied to the joint between waterproof shell 1 2 and waterproof shell 2 20.

[0020] like Figure 4 As shown, the snap-fit ​​assembly 21 includes a rubber post 210 fixedly connected to the waterproof shell 2. The end of the rubber post 210 away from the waterproof shell 2 is integrally provided with a conical head 211, and the conical head 211 is interference-fitted with the groove of the waterproof shell 20. By utilizing the inherent elastic deformation capability of the rubber material, the conical head 211 is compressed and deformed when inserted into the groove, generating a huge rebound force, thereby achieving interference fit and tight sealing, effectively preventing water vapor from entering from the connection gap.

[0021] like Figure 5 As shown, the protective module 25 includes a storage tray 250, and activated carbon particles are disposed inside the storage tray 250. A woven mesh 251 is fixedly disposed on the surface of the storage tray 250, and the woven mesh 251 is made of nylon. The activated carbon particles inside the storage tray 250 strongly adsorb water molecules in the air by utilizing their huge specific surface area and rich microporous structure, while the nylon woven mesh 251 on the surface is used to constrain the activated carbon particles.

[0022] Please refer to Figure 2 On the other hand, this application also provides a waterproof vehicle antenna, including an antenna body 1, with a receiver 10 at one end of the antenna body 1 and a processor 11 at the end of the antenna body 1 away from the receiver 10. The aforementioned waterproof structure is provided at the joint between the processor 11 and the antenna body 1 to prevent moisture from entering the processor 11 along the joint. A connector 12 is provided at one end of the processor 11 and is fixedly connected to the vehicle body. The high-performance waterproof structure is precisely deployed at the joint, directly protecting the core processor 11 unit, thereby ensuring the operational stability and lifespan of the entire vehicle antenna system.

[0023] To ensure the watertightness of the installation interface and prevent moisture from entering through the vehicle body interface, the installation interface between the connector 12 and the vehicle body is coated with a polyurethane sealant layer.

[0024] In summary, during use, the interlocking fit between the snap-fit ​​component 21 and the slot achieves a preliminary seal and mechanical connection between the waterproof shell 1 2 and the waterproof shell 20, forming the first physical barrier. On this basis, the water-absorbing sponge 23 in the groove 22 inside the shell serves as the second line of defense, responsible for absorbing any small amount of liquid water that may seep in. The multiple waterproof modules 25 set in the waterproof groove 24 constitute the third line of defense, with the activated carbon particles inside continuously adsorbing moisture in the cavity through the nylon woven mesh. This achieves a multi-layered, synergistic waterproof seal from the outside to the inside and from liquid to gas, providing all-round protection for the internal electronic components.

[0025] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A waterproof structure, characterized in that: The device includes a waterproof shell 1 (2) and a waterproof shell 2 (20). The surface of the waterproof shell 1 (2) is provided with a snap-fit ​​component (21). The surface of the waterproof shell 2 (20) is provided with a groove corresponding to the snap-fit ​​component (21). The groove and the snap-fit ​​component (21) are used to connect the waterproof shell 1 (2) and the waterproof shell 2 (20). The inner side of the waterproof shell 1 (2) and the waterproof shell 2 (20) is provided with a groove (22). The groove (22) is provided with a water-absorbing sponge (23). The inner side of the waterproof shell 1 (2) and the waterproof shell 2 (20) is provided with a waterproof groove (24). The waterproof groove (24) is provided with a plurality of waterproof modules (25) for absorbing water.

2. The waterproof structure according to claim 1, characterized in that: The waterproof module (25) includes a storage tray (250), and activated carbon particles are disposed inside the storage tray (250).

3. The waterproof structure according to claim 2, characterized in that: The surface of the storage tray (250) is fixedly provided with a woven mesh (251), and the material of the woven mesh (251) is nylon.

4. The waterproof structure according to claim 1, characterized in that: The snap-fit ​​assembly (21) includes a rubber post (210) fixedly connected to the waterproof shell one (2). The end of the rubber post (210) away from the waterproof shell one (2) is integrally provided with a conical head (211), and the conical head (211) is interference-fitted with the groove of the waterproof shell two (20).

5. The waterproof structure according to claim 1, characterized in that: The joint between the waterproof shell one (2) and the waterproof shell two (20) is coated with waterproof sealant.

6. A vehicle-mounted antenna, comprising the waterproof structure according to any one of claims 1-5, characterized in that: It includes an antenna body (1), and a receiver head (10) is provided at one end of the antenna body (1). A processor (11) is provided at the end of the antenna body (1) away from the receiver head (10). The above-mentioned waterproof structure is provided at the joint between the processor (11) and the antenna body (1) to prevent water vapor from entering the processor (11) along the joint.

7. The vehicle-mounted antenna according to claim 6, characterized in that: One end of the processor (11) is provided with a connector (12), and the connector (12) is fixedly connected to the vehicle body.

8. The vehicle-mounted antenna according to claim 7, characterized in that: The interface between the connector (12) and the vehicle body is coated with a polyurethane sealant layer.

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