Composite material GPS positioning antenna

Abstract

The utility model relates to the technical field of GPS (Global Positioning System) positioning antennas, and discloses a composite material GPS positioning antenna, which comprises a PCB (Printed Circuit Board), a polymer plate, an electronic device shielding cover and four limiting screws, and is characterized in that a socket, an RS485 module and a bridge are arranged at the bottom end of the PCB at intervals; the electronic device shielding case is integrally formed by a fixed bottom and four elastic folding parts, clamping grooves are formed in the positions, corresponding to the elastic folding parts, of the PCB, the macromolecule plates comprise the upper macromolecule plate and the lower macromolecule plate, the lower macromolecule plate is located between the upper macromolecule plate and the PCB, and the upper macromolecule plate is located between the lower macromolecule plate and the PCB. According to the utility model, the upper polymer plate, the lower polymer plate and the PCB circuit board can be synchronously fastened and limited, and the polymer plates and the electronic device shielding cover do not need to be sequentially welded on the PCB circuit board, so that the disassembly processing is more convenient, and the maintenance work of the GPS positioning antenna is convenient.

Description

Technical Field

[0001] This utility model relates to the field of GPS positioning antenna technology, and more specifically, to a composite material GPS positioning antenna. Background Technology

[0002] GPS is a terminal that uses satellite signals for positioning or navigation. Receiving these signals requires an antenna. GPS satellite signals are divided into L1 and L2, with frequencies of 1575.42MHz and 1228MHz respectively. L1 is an open civilian signal with circular polarization and a signal strength of approximately -166dBW, which is relatively weak. These characteristics necessitate the use of a dedicated antenna for receiving GPS signals. GPS positioning antennas can be applied to navigation, positioning, tracking, monitoring, and security control in high-speed trains and other equipment.

[0003] The larger the area of ​​the polymer plate of the antenna, the higher the dielectric constant, the higher its resonant frequency, and the better the reception effect. However, in the use of existing GPS positioning antennas, the polymer plate and the electronic component shielding cover are usually soldered sequentially on the PCB circuit board, which makes it difficult to disassemble and handle, causing inconvenience to antenna maintenance and affecting the convenience of later maintenance. Based on this, this utility model designs a composite material GPS positioning antenna to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a composite material GPS positioning antenna to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A composite material GPS positioning antenna includes a PCB circuit board, a polymer board, an electronic component shielding cover, and four limiting screws. The bottom of the PCB circuit board is provided with a socket, an RS485 module, and a bridge circuit at intervals. The electronic component shielding cover is integrally formed from a fixed bottom and four elastically folded portions. The PCB circuit board has slots corresponding to the elastically folded portions. The polymer board includes an upper polymer board and a lower polymer board, with the lower polymer board located between the upper polymer board and the PCB circuit board. The limiting screws pass through the upper polymer board, the lower polymer board, and the PCB circuit board sequentially from top to bottom. A limiting nut is threaded onto the bottom side of each limiting screw, and the limiting nut is located inside the electronic component shielding cover.

[0007] As a preferred embodiment of this utility model, the upper polymer plate is a glass fiber reinforced cyanate ester-based composite material laminate, and the lower polymer plate is a quartz fiber reinforced cyanate ester-based composite material laminate.

[0008] As a preferred embodiment of this utility model, the diameter of the PCB circuit board is 120mm-121mm.

[0009] As a preferred technical solution of this utility model, the electronic device shielding cover is a component made of stainless steel.

[0010] As a preferred embodiment of this utility model, the diameter of the upper polymer plate is 80mm-81mm, and the diameter of the lower polymer plate is 90mm-91mm.

[0011] As a preferred embodiment of this utility model, the PCB circuit board has four mounting holes on its surface.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention integrates a fixed bottom and four elastic folding sections to form an electronic component shielding cover. Slots are provided on the PCB circuit board corresponding to the elastic folding sections. Utilizing the elasticity of each folding section on the fixed bottom, the ends of the folding sections engage with the slots, allowing the electronic component shielding cover to be installed on the PCB circuit board. A lower polymer plate is located between the upper and lower polymer plates. Limiting screws pass through the upper polymer plate, lower polymer plate, and PCB circuit board sequentially from top to bottom. Limiting nuts are threaded onto the bottom side of the limiting screws and are located inside the electronic component shielding cover. This allows for simultaneous tightening and limiting of the upper polymer plate, lower polymer plate, and PCB circuit board, eliminating the need to sequentially weld the polymer plate and electronic component shielding cover to the PCB circuit board. This facilitates disassembly and repair, making GPS positioning antenna maintenance easier and improving future maintenance convenience. Attached Figure Description

[0014] Figure 1 This is an exploded structural diagram of a composite material GPS positioning antenna according to the present invention;

[0015] Figure 2 This is a first cross-sectional view of a composite material GPS positioning antenna according to the present invention;

[0016] Figure 3 This is a second cross-sectional view of a composite material GPS positioning antenna according to the present invention;

[0017] Figure 4 for Figure 3 A magnified structural diagram of part A in the middle;

[0018] Figure 5This is a three-dimensional structural diagram of a composite material GPS positioning antenna according to the present invention.

[0019] In the diagram: 1. PCB circuit board; 101. Socket; 102. RS485 module; 103. Bridge; 104. Slot; 105. Mounting hole; 2. Upper polymer board; 3. Lower polymer board; 4. Limit screw; 401. Limit nut; 5. Electronic component shielding cover; 501. Fixed bottom; 502. Elastic folding part. 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] like Figures 1 to 5 As shown, this utility model provides a composite material GPS positioning antenna, including a PCB circuit board 1, a polymer board, an electronic component shielding cover 5, and four limiting screws 4. The bottom end of the PCB circuit board 1 is provided with a socket 101, an RS485 module 102, and a bridge 103 spaced apart. The electronic component shielding cover 5 is integrally formed from a fixed bottom 501 and four elastic folding parts 502. Slots 104 are provided on the PCB circuit board 1 at positions corresponding to the elastic folding parts 502. Utilizing the elastic effect of each elastic folding part 502 on the fixed bottom 501, the antenna... The end of the elastic folding part 502 is engaged and inserted into the slot 104, which allows the electronic device shielding cover 5 to be connected and installed with the PCB circuit board 1. The polymer board includes an upper polymer board 2 and a lower polymer board 3. The lower polymer board 3 is located between the upper polymer board 2 and the PCB circuit board 1. The limiting screw 4 passes through the upper polymer board 2 and the lower polymer board 3 from top to bottom. The bottom thread of the limiting screw 4 is threaded with a limiting nut 401. The limiting nut 401 is located inside the electronic device shielding cover 5, which can simultaneously tighten and limit the upper polymer board 2, the lower polymer board 3 and the PCB circuit board 1.

[0022] Among them, such as Figure 1 As shown, the upper polymer plate 2 is a glass fiber reinforced cyanate ester-based composite laminate, and the lower polymer plate 3 is a quartz fiber reinforced cyanate ester-based composite laminate.

[0023] Among them, such as Figure 1 As shown, the diameter of PCB circuit board 1 is 120mm-121mm.

[0024] Among them, such as Figure 2As shown, the electronic device shielding cover 5 is a component made of stainless steel, which gives the electronic device shielding cover 5 good electromagnetic shielding performance.

[0025] Among them, such as Figure 1 As shown, the diameter of the upper polymer plate 2 is 80mm-81mm, and the diameter of the lower polymer plate 3 is 90mm-91mm.

[0026] Among them, such as Figure 5 As shown, the surface of the PCB circuit board 1 has four mounting holes 105, which achieve the purpose of positioning and assembling the PCB circuit board 1.

[0027] The working principle of this utility model:

[0028] An electronic device shielding cover 5 is formed by integrally molding a fixed bottom 501 and four elastic folding parts 502. A slot 104 is opened on the PCB circuit board 1 at the position corresponding to the elastic folding parts 502. Utilizing the elastic effect of each elastic folding part 502 on the fixed bottom 501, the end of the elastic folding part 502 fits into the slot 104, so that the electronic device shielding cover 5 can be connected and installed with the PCB circuit board 1. The lower polymer plate 3 is located between the upper polymer plate 2 and the lower polymer plate 3. The limiting screw 4 passes through the upper polymer plate 2, the lower polymer plate 3 and the PCB circuit board 1 from top to bottom. The limiting nut 401 is threaded onto the bottom side of the limiting screw 4. The limiting nut 401 is located inside the electronic device shielding cover 5, so that the upper polymer plate 2, the lower polymer plate 3 and the PCB circuit board 1 can be tightened and limited synchronously. There is no need to weld the polymer plate and the electronic device shielding cover 5 onto the PCB circuit board in sequence, so as to facilitate disassembly.

[0029] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0030] 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 composite material GPS positioning antenna, characterized in that: Includes PCB circuit board (1), polymer board, electronic component shielding cover (5) and four limiting screws (4); The bottom end of the PCB circuit board (1) is provided with a socket (101), an RS485 module (102) and a bridge (103) at intervals. The electronic device shielding cover (5) is integrally formed by a fixed bottom (501) and four elastic folding parts (502). The PCB circuit board (1) is provided with a slot (104) at the position corresponding to the elastic folding parts (502). The polymer plate includes an upper polymer plate (2) and a lower polymer plate (3). The lower polymer plate (3) is located between the upper polymer plate (2) and the PCB circuit board (1). The limiting screw (4) passes through the upper polymer plate (2), the lower polymer plate (3) and the PCB circuit board (1) from top to bottom. The bottom thread of the limiting screw (4) is threaded with a limiting nut (401). The limiting nut (401) is located inside the electronic device shielding cover (5).

2. The composite material GPS positioning antenna according to claim 1, characterized in that: The upper polymer plate (2) is a glass fiber reinforced cyanate ester-based composite material laminate, and the lower polymer plate (3) is a quartz fiber reinforced cyanate ester-based composite material laminate.

3. The composite material GPS positioning antenna according to claim 1, characterized in that: The diameter of the PCB circuit board (1) is 120mm-121mm.

4. A composite material GPS positioning antenna according to claim 1, characterized in that: The electronic device shield (5) is a component made of stainless steel.

5. A composite material GPS positioning antenna according to claim 1, characterized in that: The upper polymer plate (2) has a diameter of 80mm-81mm, and the lower polymer plate (3) has a diameter of 90mm-91mm.

6. A composite material GPS positioning antenna according to claim 1, characterized in that: The PCB circuit board (1) has four mounting holes (105) on its surface.

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