Shark fin antenna assembly
By integrating multiple one-piece molded antenna modules into the shark fin antenna assembly and fixing them with a zinc alloy base and silicone waterproof ring, the problem of shark fin antenna size limitation is solved, improving user experience and reducing air resistance and risk of falling off.
Patent Information
- Application Number
- CN202520425487.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-03-10
AI Technical Summary
Existing shark fin antennas, due to size limitations, cannot integrate multiple functional modules, resulting in a poor user experience and a risk of detachment during vehicle movement.
A shark fin antenna assembly was designed, comprising a shark fin shell and a base, and containing multiple integrally molded antenna modules, such as an RF circuit board, a 4G module, a radio and DAB module, and a GNSS module. These modules are connected to an RF connector via an RF cable and are secured with a zinc alloy base and a silicone waterproof ring to reduce air resistance and improve stability.
The integration of a multi-functional antenna module enhances the user experience while reducing air resistance during vehicle movement and minimizing the risk of antenna detachment.
Smart Images

Figure CN223978102U_ABST
Abstract
Description
[Technical Field]
[0001] This utility model relates to the field of antenna technology, and in particular to a shark fin antenna assembly. [Background Technology]
[0002] Existing shark fin antennas cannot be too large, otherwise it will increase the drag during the car's movement. Therefore, shark fin antennas generally do not have too many antennas inside, resulting in insufficient antenna functions and a poor user experience. [Utility Model Content]
[0003] To overcome the above problems, this utility model proposes a shark fin antenna assembly that can effectively solve the above problems.
[0004] The present invention provides a technical solution to solve the above-mentioned technical problems by providing a shark fin antenna assembly, including a shark fin shell and a shark fin base. The shark fin shell and the shark fin base are connected, and a first inner cavity is formed between the shark fin shell and the shark fin base. An antenna module is disposed in the first inner cavity, and an RF cable is disposed outside the first inner cavity. One end of the RF cable extends into the first inner cavity and is connected to the antenna module, and the other end of the RF cable is connected to an RF connector. The antenna module includes an RF circuit base plate, a 4G module, a radio and DAB module, and a GNSS module. The 4G module, the radio and DAB module, and the GNSS module are integrally formed on the RF circuit base plate.
[0005] Preferably, the shark fin base includes a zinc alloy base, fixing screws, and a silicone waterproof ring. After the silicone waterproof ring is fitted into the zinc alloy base, it is fixed to the shark fin shell by the fixing screws to form a first inner cavity.
[0006] Preferably, the zinc alloy base and the bottom of the silicone waterproof ring are provided with overlapping holes, which are connected to the first inner cavity. The antenna module is placed in the first inner cavity and fixed on the zinc alloy base.
[0007] Preferably, the radio frequency circuit base plate has a positioning hole for fixing to the zinc alloy base.
[0008] Preferably, the shark fin antenna assembly includes a shark fin fixing component, which includes a threaded fixing post and a nut. The threaded fixing post has a clearance hole in the middle and a screw hole at the top. The screw hole can be fixed to the zinc alloy base by screws, so that the clearance hole of the threaded fixing post, the hole at the bottom of the zinc alloy base and the hole of the silicone waterproof ring are on the same central axis. The radio frequency cable can pass through it and enter the first inner cavity to be electrically connected to the antenna module.
[0009] Preferably, the nut is used to secure the vehicle to the roof during assembly.
[0010] Compared with existing technologies, the shark fin antenna assembly of this utility model integrates multiple antenna modules, which can meet a variety of daily needs and improve the user experience; the shell has been adjusted and tested, and the air resistance has been greatly reduced; the multiple modules inside the antenna module adopt an integrated design, combining antennas with different functions on the same PCB board, thereby reducing the risk of the antenna falling off during the movement of the car. [Attached Image Description]
[0011] Figure 1 This is a structural diagram of the shark fin antenna assembly of this utility model;
[0012] Figure 2 This is a structural diagram of the antenna module of the shark fin antenna assembly of this utility model;
[0013] Figure 3 This is an exploded view of the shark fin bottom cover of the shark fin antenna assembly of this utility model;
[0014] Figure 4 This is an exploded view of the shark fin mounting bracket of the shark fin antenna assembly of this utility model.
Detailed Implementation Methods
[0015] 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 the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this utility model.
[0016] It should be noted that in this embodiment of the invention, all directional indications (such as up, down, left, right, front, back, etc.) are limited to relative positions on the specified view, rather than absolute positions.
[0017] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0018] Please see Figures 1 to 4The shark fin antenna assembly of this utility model includes a shark fin shell 1 and a shark fin base 5. The shark fin shell 1 and the shark fin base 5 are connected, and a first inner cavity is formed between the shark fin shell 1 and the shark fin base 5. An antenna module 4 is disposed in the first inner cavity, and an radio frequency cable 2 is disposed outside the first inner cavity. One end of the radio frequency cable 2 extends into the first inner cavity and is connected to the antenna module 4, and the other end of the radio frequency cable 2 is connected to a radio frequency connector 3.
[0019] The antenna module 4 includes an RF circuit base plate 44, a 4G module 41, a radio and DAB module 42, and a GNSS module 43, all of which are integrally formed on the RF circuit base plate 44.
[0020] The shark fin base 5 includes a zinc alloy base 51, a fixing screw 52, and a silicone waterproof ring 53. After the silicone waterproof ring 53 is fitted into the zinc alloy base 51, it is fixed to the shark fin shell 1 by the fixing screw 52 to form a first inner cavity.
[0021] The zinc alloy base 51 and the silicone waterproof ring 53 have overlapping holes at their bottoms, which are connected to the first inner cavity. The antenna module 4 is placed inside the first inner cavity and fixed on the zinc alloy base 51.
[0022] The radio frequency circuit base plate 44 has a reserved positioning hole for fixing to the zinc alloy base 51.
[0023] The shark fin antenna assembly of this utility model includes a shark fin fixing component 6, which includes a threaded fixing post 61 and a nut 62. The threaded fixing post 61 has a clearance hole in the middle, and a screw hole at the top of the threaded fixing post 61. The screw hole can be fixed to the zinc alloy base 51 by screws, so that the clearance hole of the threaded fixing post 61, the hole at the bottom of the zinc alloy base 51 and the hole of the silicone waterproof ring 53 are on the same central axis. The radio frequency cable 2 can pass through it and enter the first inner cavity to be electrically connected to the antenna module 4.
[0024] The nut 62 is used to fix it to the roof of the vehicle during assembly.
[0025] Compared with existing technologies, the shark fin antenna assembly of this utility model integrates multiple antenna modules, which can meet a variety of daily needs and improve the user experience; the shell has been adjusted and tested, and the air resistance has been greatly reduced; the multiple modules inside the antenna module adopt an integrated design, combining antennas with different functions on the same PCB board, thereby reducing the risk of the antenna falling off during the movement of the car.
[0026] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any modifications, equivalent substitutions and improvements made within the concept of the present utility model should be included within the patent protection scope of the present utility model.
Claims
1. A shark-fin antenna assembly, characterized by, The shark fin antenna assembly comprises a shark fin shell and a shark fin base, which are connected to form a first inner chamber, an antenna module is arranged in the first inner chamber, and a radio frequency cable is arranged outside the first inner chamber, one end of the radio frequency cable is connected to the antenna module, and the other end of the radio frequency cable is connected to a radio frequency connector. The antenna module comprises a radio frequency circuit bottom plate, a 4G module, a radio and DAB module, and a GNSS module, and the 4G module, the radio and DAB module, and the GNSS module are integrally formed on the radio frequency circuit bottom plate.
2. The shark-fin antenna assembly of claim 1, wherein, The shark fin base comprises a zinc alloy base, fixing screws, and a silica gel waterproof rubber ring, the silica gel waterproof rubber ring is sleeved on the zinc alloy base and is fixed by the fixing screws and the shark fin shell to form the first inner chamber.
3. The shark-fin antenna assembly of claim 2, wherein, The zinc alloy base and the silica gel waterproof rubber ring are provided with overlapping holes at the bottom, the overlapping holes are communicated with the first inner chamber, and the antenna module is arranged in the first inner chamber and fixed on the zinc alloy base.
4. The shark-fin antenna assembly of claim 2, wherein, The radio frequency circuit bottom plate is provided with a positioning hole for being fixed with the zinc alloy base.
5. The shark-fin antenna assembly of claim 1, wherein, The shark fin antenna assembly comprises a shark fin fixing member, the shark fin fixing member comprises a threaded fixing column and a nut, the threaded fixing column is provided with an avoiding hole penetrating through the threaded fixing column in the middle, and the threaded fixing column is further provided with a screw hole at the top, the screw hole can be fixed with the zinc alloy base through a screw, the avoiding hole of the threaded fixing column, the hole of the zinc alloy base at the bottom, and the hole of the silica gel waterproof rubber ring are on the same central axis, and the radio frequency cable can pass through the holes to enter the first inner chamber and be electrically connected with the antenna module.
6. The shark-fin antenna assembly of claim 5, wherein, The nut is used for being fixed on the roof of the automobile during assembly.