Vehicle-mounted flexible transparent antenna
By employing a combination design of transparent substrate, metal mesh, and protective layer in the vehicle-mounted transparent antenna, the problem of existing antennas being easily damaged in complex environments is solved, achieving a vehicle-mounted flexible transparent antenna with high durability and protection performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN YINGTUOPU COMM TECH CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-06-02
Smart Images
Figure CN224318698U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to vehicle-mounted antenna technology, and more particularly to a vehicle-mounted flexible transparent antenna. Background Technology
[0002] A vehicle-mounted antenna is a device installed on a vehicle for transmitting and receiving radio signals. It is widely used in communication, navigation, broadcasting, satellite positioning, mobile networks, remote keys, radar, and other scenarios. Its core function is to optimize signal transmission efficiency and ensure a stable wireless connection while the vehicle is in motion.
[0003] Patent CN222233861U discloses a high-frequency transparent thin-film antenna with a stacked structure, consisting of a first conductive layer, a first transparent dielectric layer, a first transparent adhesive layer, a second transparent dielectric layer, a second transparent adhesive layer, a third transparent dielectric layer, and a second conductive layer. The first transparent dielectric layer serves as the carrier of the first conductive layer. The first and second transparent adhesive layers are used to bond adjacent layers, and the second transparent dielectric layer increases the antenna's thickness. The third transparent dielectric layer serves as the carrier of the second conductive layer, which employs a mesh structure. Together, they form the antenna's ground plane. While this patent significantly improves visible light transmittance while maintaining antenna radiation performance through its stacked structure design, resulting in a more aesthetically pleasing antenna that blends well with its environment and offers greater installation flexibility, making it suitable for various high-frequency transparent antenna applications, the lack of a dedicated protective layer means that the conductive layers are directly exposed on the surface of the stacked structure. This makes the antenna susceptible to scratches, UV aging, and chemical corrosion in complex driving environments, reducing its durability and making it difficult to meet the requirements of various complex driving environments.
[0004] Therefore, there is a need for a vehicle-mounted flexible transparent antenna with excellent durability and protection performance. Utility Model Content
[0005] To overcome the shortcomings of existing patents, which lack a dedicated protective layer design and expose each conductive layer directly to the surface of the stacked structure, making the antenna susceptible to scratches, UV aging, and chemical corrosion in complex driving environments, thus reducing its durability and making it difficult to meet the usage requirements of various complex driving environments, this utility model provides a vehicle-mounted flexible transparent antenna with excellent durability and protective performance.
[0006] This utility model provides the following technical solution: a vehicle-mounted flexible transparent antenna, comprising a transparent substrate, a thin-film antenna, a metal mesh, a transparent protective layer, an adhesive layer, a flexible circuit board, foam adhesive, and a connecting piece. The thin-film antenna is disposed on the top of the transparent substrate, a metal mesh is disposed inside the thin-film antenna, a transparent protective layer is disposed on the top of the thin-film antenna, an adhesive layer is disposed on the bottom of the transparent substrate, a flexible circuit board is disposed at the front of the thin-film antenna, foam adhesive is disposed on the top of the flexible circuit board, the foam adhesive is bonded to the transparent protective layer, and a connecting piece is connected to the front of the flexible circuit board.
[0007] Optionally, it also includes a lower fixing seat, an upper fixing seat, and elastic element buckles. The lower fixing seat is fixedly connected to the front side of the transparent substrate. The lower fixing seat has multiple slots. The upper fixing seat is covered by the lower fixing seat. The upper fixing seat covers the connection between the flexible circuit board and the connecting piece. Multiple elastic element buckles are fixedly connected to the bottom of the upper fixing seat. The elastic element buckles are snapped into the slots.
[0008] Optionally, it also includes a sealing ring, and the lower fixing seat has an installation groove inside, on which the sealing ring is embedded.
[0009] Optionally, it also includes an adhesive layer, with an adhesive layer provided at the bottom of the lower fixing base.
[0010] Optionally, the transparent substrate is made of a high-strength and high-transparency polyester material.
[0011] Optionally, the transparent protective layer is made of a polymer material with high light transmittance and excellent weather resistance.
[0012] Compared with the prior art, this utility model provides a vehicle-mounted flexible transparent antenna with the following advantages: 1. By setting up a transparent substrate, thin film antenna, metal mesh, transparent protective layer, adhesive layer, flexible circuit board and connecting piece, it achieves strong wireless communication capability without affecting the appearance of the vehicle, and has excellent durability and protection performance, and is suitable for various complex driving environments.
[0013] 2. The upper fixing seat covers the lower fixing seat, and the elastic clips on both sides are inserted into the slots to achieve a tight connection between the flexible circuit board and the connecting piece, preventing the connecting piece from touching and causing it to fall off. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0015] Figure 2 This is a three-dimensional cross-sectional view of the thin-film antenna, metal mesh, and transparent protective layer of this utility model.
[0016] Figure 3 This is an exploded view of the transparent substrate, thin-film antenna, and metal mesh of this utility model.
[0017] Figure 4 This is a three-dimensional cross-sectional view of the thin-film antenna, foam adhesive, and connecting piece of this utility model.
[0018] Figure 5 This is an exploded view of the lower fixing seat, upper fixing seat, and elastic element buckle of this utility model.
[0019] The markings in the attached diagram are as follows: 1: Transparent substrate, 2: Thin film antenna, 3: Metal mesh, 4: Transparent protective layer, 5: Adhesive layer, 6: Flexible circuit board, 7: Foam adhesive, 8: Connecting piece, 9: Lower fixing seat, 10: Slot, 11: Upper fixing seat, 12: Elastic element buckle, 13: Mounting groove, 14: Sealing ring, 15: Adhesive layer. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Example 1: A vehicle-mounted flexible transparent antenna, please refer to... Figures 1-5 The device includes a transparent substrate 1, a thin-film antenna 2, a metal mesh 3, a transparent protective layer 4, an adhesive layer 5, a flexible circuit board 6, foam adhesive 7, and a connecting piece 8. The thin-film antenna 2 is mounted on top of the transparent substrate 1. The metal mesh 3 is located inside the thin-film antenna 2. The transparent protective layer 4 is mounted on top of the thin-film antenna 2. The adhesive layer 5 is mounted on the bottom of the transparent substrate 1. The flexible circuit board 6 is mounted at the front of the thin-film antenna 2. Foam adhesive 7 is mounted on top of the flexible circuit board 6 and is bonded to the transparent protective layer 4. The connecting piece 8 is connected to the front of the flexible circuit board 6. An adhesive layer 15, made of optically transparent adhesive OCA, is located at the bottom of the lower fixing base 9. The optically transparent adhesive OCA has… With high transparency, strong adhesion, weather resistance, and resistance to high and low temperatures, the transparent substrate 1 is made of high-strength and high-transparency polyester material. It not only provides good mechanical support but also effectively resists external impacts and deformations, ensuring the structural integrity and stability of the antenna during long-term use. The metal mesh 3, constructed from advanced conductive materials such as silver nanowires or graphene, can significantly improve conductivity and electromagnetic wave transmission performance while maintaining extremely high transparency, thereby improving the overall working efficiency and signal reception quality of the antenna. The transparent protective layer 4 is made of polymer material with high light transmittance and excellent weather resistance, providing physical protection and resistance to environmental erosion (ultraviolet rays, scratches, chemical corrosion).
[0022] The transparent antenna uses a transparent substrate 1 as a basic support layer. A thin-film antenna 2 is mounted on top of the substrate. This antenna is made of a transparent conductive material containing a metal mesh 3, ensuring high transparency while maintaining conductivity, making the antenna almost invisible to external observers. A transparent protective layer 4 covers the thin-film antenna 2, providing physical protection and effectively preventing scratches, UV aging, and chemical corrosion, thereby extending the antenna's lifespan. An adhesive layer 5 is located at the bottom of the transparent substrate 1 to firmly attach the entire antenna assembly to the vehicle window glass. In addition, a flexible circuit board 6 is bonded to the front of the thin-film antenna 2 using foam adhesive 7. The flexible circuit board 6 is responsible for transmitting the signals received by the antenna to the connecting piece 8, and finally, the signal is transmitted to the vehicle-mounted receiving equipment through the connecting piece 8. This design provides powerful wireless communication capabilities without affecting the vehicle's appearance and has excellent durability and protective performance, making it suitable for various complex driving environments.
[0023] Example 2: Based on Example 1, please refer to... Figure 1 and Figure 5 It also includes a lower fixing seat 9, an upper fixing seat 11, and elastic clips 12. The lower fixing seat 9 is fixedly connected to the front side of the transparent substrate 1. The lower fixing seat 9 has four slots 10. The upper fixing seat 11 is covered by the lower fixing seat 9. The upper fixing seat 11 covers the connection between the flexible circuit board 6 and the connecting piece 8. The bottom of the upper fixing seat 11 is fixedly connected to four elastic clips 12. The elastic clips 12 are inserted into the slots 10. The lower fixing seat 9 has an installation groove 13 inside. A sealing ring 14 is embedded in the installation groove 13. When the upper fixing seat 11 is closed, the sealing ring 14 is in close contact with the upper fixing seat 11, forming an effective waterproof and dustproof barrier to protect the internal electronic components from external environmental factors.
[0024] A lower fixing seat 9 is fixedly connected to the front side of the transparent substrate 1, and an upper fixing seat 11 covers the lower fixing seat 9. The elastic clips 12 on both sides are inserted into the slots 10 to achieve a tight connection between the flexible circuit board 6 and the connecting piece 8, so as to avoid touching the connecting piece 8 and causing it to fall off.
[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A vehicle-mounted flexible transparent antenna, characterized in that: The device includes a transparent substrate (1), a thin-film antenna (2), a metal mesh (3), a transparent protective layer (4), an adhesive layer (5), a flexible circuit board (6), foam adhesive (7), and a connecting piece (8). The thin-film antenna (2) is disposed on the top of the transparent substrate (1), the metal mesh (3) is disposed inside the thin-film antenna (2), the transparent protective layer (4) is disposed on the top of the thin-film antenna (2), the adhesive layer (5) is disposed on the bottom of the transparent substrate (1), the flexible circuit board (6) is disposed at the front of the thin-film antenna (2), the foam adhesive (7) is disposed on the top of the flexible circuit board (6), the foam adhesive (7) is bonded to the transparent protective layer (4), and the connecting piece (8) is connected to the front of the flexible circuit board (6).
2. The vehicle-mounted flexible transparent antenna according to claim 1, characterized in that: It also includes a lower fixing seat (9), an upper fixing seat (11) and elastic element buckles (12). The lower fixing seat (9) is fixedly connected to the front side of the transparent substrate (1). The lower fixing seat (9) has multiple slots (10). The upper fixing seat (11) is covered on the lower fixing seat (9). The upper fixing seat (11) covers the connection between the flexible circuit board (6) and the connecting piece (8). Multiple elastic element buckles (12) are fixedly connected to the bottom of the upper fixing seat (11). The elastic element buckles (12) are inserted into the slots (10).
3. The vehicle-mounted flexible transparent antenna according to claim 2, characterized in that: It also includes a sealing ring (14), and the lower fixing seat (9) has an installation groove (13) inside, on which the sealing ring (14) is embedded.
4. The vehicle-mounted flexible transparent antenna according to claim 3, characterized in that: It also includes an adhesive layer (15), and the bottom of the lower fixing base (9) is provided with an adhesive layer (15).
5. A vehicle-mounted flexible transparent antenna according to claim 4, characterized in that: The transparent substrate (1) is made of high-strength and high-transparency polyester material.
6. A vehicle-mounted flexible transparent antenna according to claim 5, characterized in that: The transparent protective layer (4) is made of polymer material with high light transmittance and excellent weather resistance.