A GNSS metal antenna

Abstract

The utility model discloses a kind of GNSS metal antennas, including metal antenna body and plastic support, the metal antenna body is inlayed in the plastic support using insert injection molding mode. The utility model uses the mode of changing hot riveting in traditional structure, directly through insert injection molding mode to realize the assembly of metal antenna body and plastic support, without complex assembly fixing procedure, greatly shorten production cycle, assembly efficiency is higher, saves production cost, while more strong in integrity, higher structural strength, improve the stability of structure, avoid the gap produced in the assembly hot riveting process of part cooperation, and the influence of metal antenna body shaking on antenna performance.

Description

Technical Field

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

[0002] In the global satellite navigation market, terminal equipment used in fields such as road traffic and drones is one of the fastest-growing segments in the next decade. Intelligent and autonomous vehicles will become the main development direction of future road vehicles. Among them, cars with autonomous driving capabilities must be equipped with high-precision GNSS antennas. As a new type of antenna, the installation and fixing structure of air-medium GNSS metal antenna positioning devices also plays a crucial role in manufacturing.

[0003] Chinese invention application CN 119994479 A discloses a GNSS antenna, including a metal antenna body and a bracket for fixing the metal antenna body. This type of mounting structure mainly uses an external metal antenna supported by a plastic bracket, and is fixed by hot riveting with multiple hot-riveting posts. While the technology for external metal antenna mounting is mature and widely used in the market, the need for multi-directional hot riveting results in numerous processing steps, long processing time, and relatively low overall structural strength after hot riveting. Therefore, optimization of existing GNSS antenna mounting structures is necessary. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a GNSS metal antenna with a convenient overall structure and high structural strength.

[0005] The technical solution to achieve the purpose of this utility model is:

[0006] A GNSS metal antenna includes a metal antenna body and a plastic bracket, wherein the metal antenna body is embedded in the plastic bracket by insert injection molding.

[0007] Furthermore, the plastic bracket includes a rectangular mounting base and a top wall located on top of the mounting base. The top wall has a through groove running vertically through its center. The outer periphery of the through groove is connected to transverse grooves located on the top of four sets of side walls of the mounting base. The top wall forms pressure plates at both ends of the transverse grooves. The metal antenna body includes four sets of metal pressure plate assemblies. The metal pressure plate assemblies are located in the four sets of side walls of the mounting base, and are longitudinally fixed to the mounting base by the pressure plates and partially exposed in the transverse grooves.

[0008] Furthermore, the metal pressing assembly includes a first metal pressing sheet and a second metal pressing sheet arranged in parallel. The first metal pressing sheet is composed of a first body arranged horizontally and a first bent portion arranged vertically at the end of the first body. The second metal pressing sheet is composed of a second body arranged horizontally, a second bent portion arranged vertically at the end of the second body, and a third bent portion connected to the second bent portion. The first bent portion, the second bent portion, and the third bent portion are located at the same end.

[0009] Furthermore, fixing holes are provided in the areas where the first and second bodies overlap with the pressure plate.

[0010] Furthermore, the side of the third bend is provided with an outwardly protruding buckle.

[0011] Furthermore, the mounting base has a positioning groove on the inner side wall.

[0012] Furthermore, the mounting base is provided with elastic cantilever arms at at least three corners, and the bottom of the elastic cantilever arms is provided with buckles.

[0013] Furthermore, the plastic bracket is made of PC.

[0014] By adopting the above technical solution, this utility model has the following beneficial effects:

[0015] (1) This utility model adopts a change in the traditional hot riveting fixing method, and directly realizes the assembly of the metal antenna body and the plastic bracket through the insert injection molding method. It does not require complicated assembly and fixing procedures, greatly shortens the production cycle, improves assembly efficiency, saves production costs, and has stronger overall integrity and higher structural strength, which improves the stability of the structure and avoids the gaps caused by the fit of parts during the hot riveting process, as well as the impact of the shaking of the metal antenna body on the antenna performance.

[0016] (2) The present invention rationally designs the structure of the plastic bracket, which holds the metal antenna body through the mounting base and the top wall, and limits and fixes the top of the metal antenna body through the pressure plate structure, thereby realizing the solid connection between the metal antenna body and the plastic bracket. At the same time, a horizontal groove is provided so that each metal antenna body can be partially exposed, which facilitates the adjustment of the position of the metal antenna body in the mold during injection molding and ensures the positional accuracy during injection molding.

[0017] (3) In this utility model, the bending parts of the two metal plates of each metal plate assembly are set at the same end, which makes the structure more reasonable and simplifies the structural design of the mounting base.

[0018] (4) By adding fixing holes on the first body and the second body, the injection solution of the plastic bracket flows into the fixing holes during the injection molding of the insert, naturally forming a fixing post that matches the fixing holes, further increasing the connection strength of the metal antenna body in the plastic bracket and preventing the flat metal antenna body from loosening.

[0019] (5) By adding an inverted buckle on the third bend, this utility model further increases the contact surface between the plastic bracket and the metal antenna body, ensuring that the metal antenna body will not come loose.

[0020] (6) By adding a positioning groove, this utility model facilitates the positioning and installation of the overall structure.

[0021] (7) By adding an elastic cantilever with a buckle, this utility model can be directly snapped on during installation, eliminating the need for screw installation. The structure is simple and easy to install. Attached Figure Description

[0022] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is an exploded view of the structure of this utility model;

[0025] Figure 3 This is a structural schematic diagram of the present invention from another angle;

[0026] Figure 4 This is a schematic diagram of the metal antenna body structure of this utility model.

[0027] The labels in the attached diagram are:

[0028] Metal antenna body 1, first metal pressure plate 1-1, first body 1-1-1, first bending part 1-1-2, second metal pressure plate 1-2, second body 1-2-1, second bending part 1-2-2, third bending part 1-2-3, inverted buckle 1-2-4, plastic bracket 2, mounting base 2-1, positioning groove 2-1-1, elastic cantilever 2-1-2, buckle 2-1-3, top wall 2-2, through groove 2-3, horizontal groove 2-4, pressure plate 2-5, fixing hole 3. Detailed Implementation

[0029] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0030] (Example 1)

[0031] like Figures 1 to 4 The GNSS metal antenna shown includes a metal antenna body 1 and a plastic bracket 2. The metal antenna body 1 is embedded in the plastic bracket 2 using an insert injection molding method, which changes the traditional hot riveting fixing method. This eliminates the need for complex assembly and fixing processes, greatly shortens the production cycle, increases assembly efficiency, saves production costs, and also enhances overall integrity, structural strength, and stability. It avoids gaps caused by the fit of parts during hot riveting assembly and the impact of shaking of the metal antenna body 1 on antenna performance.

[0032] Specifically, the plastic bracket 2 is made of PC and includes a rectangular mounting base 2-1 and a top wall 2-2 located on top of the mounting base 2-1. The top wall 2-2 has a through groove 2-3 running vertically through its center. The outer periphery of the through groove 2-3 is connected to four transverse grooves 2-4 located on the top of the four side walls of the mounting base 2-1. The top wall 2-2 forms pressure plates 2-5 at both ends of the transverse grooves 2-4. The metal antenna body 1 includes four sets of metal pressure plate assemblies. The four sets of metal pressure plate assemblies are located in the four side walls of the mounting base 2-1, and are fixed longitudinally to the mounting base 2-1 by the pressure plates 2-5 and partially exposed in the transverse grooves 2-4. In this embodiment, the metal antenna body 1 is held by the mounting base 2-1 and the top wall 2-2, and the top of the metal antenna body 1 is limited and fixed by the pressure plate 2-5, so as to realize the fixed connection between the metal antenna body 1 and the plastic bracket 2. At the same time, a transverse groove 2-4 is provided so that each metal antenna body 1 can be partially exposed, which facilitates the adjustment of the position of the metal antenna body 1 in the mold during the insert injection molding, and ensures the positional accuracy during injection molding.

[0033] The metal pressure plate assembly includes a first metal pressure plate 1-1 and a second metal pressure plate 1-2 arranged in parallel. The first metal pressure plate 1-1 consists of a horizontally arranged first body 1-1-1 and a first bent portion 1-1-2 vertically located at the end of the first body 1-1-1. The second metal pressure plate 1-2 consists of a horizontally arranged second body 1-2-1, a second bent portion 1-2-2 vertically located at the end of the second body 1-2-1, and a third bent portion 1-2-3 connected to the second bent portion 1-2-2. The first bent portion 1-1-2, the second bent portion 1-2-2, and the third bent portion 1-2-3 are located at the same end, resulting in a more rational structure and simplifying the structural design of the mounting base 2-1. Furthermore, fixing holes 3 are provided in the areas where the first body 1-1-1 and the second body 1-2-1 overlap with the pressure plate 2-5. During the injection molding of the insert, the injection solution of the plastic bracket 2 flows into the fixing holes 3, naturally forming fixing posts that cooperate with the fixing holes 3, further increasing the connection strength of the metal antenna body 1 within the plastic bracket 2 and preventing the flat structure of the metal antenna body 1 from loosening. The side of the third bend 1-2-3 is provided with an outwardly protruding buckle 1-2-4, further increasing the contact surface between the plastic bracket 2 and the metal antenna body 1, ensuring that the metal antenna body 1 will not loosen.

[0034] To facilitate the installation of the entire GNSS metal antenna on the corresponding carrier, this embodiment provides a positioning groove 2-1-1 on the inner side wall of the mounting base 2-1. Simultaneously, at least three corners of the mounting base 2-1 are provided with elastic cantilever arms 2-1-2, and the bottom of the elastic cantilever arms 2-1-2 is provided with a buckle 2-1-3. When installing this structure, by pre-reserving the buckle groove and positioning structure on the corresponding carrier, direct snap-fit ​​installation can be achieved, eliminating the need for screw installation. The structure is simple and installation is convenient.

[0035] This embodiment changes the traditional hot riveting fixing method and directly assembles the metal antenna body 1 and the plastic bracket 2 through insert injection molding. It eliminates the need for complicated assembly and fixing processes, greatly shortens the production cycle, improves assembly efficiency, saves production costs, and enhances overall integrity and structural strength. It also avoids gaps caused by the fit of parts during hot riveting assembly and the impact of the shaking of the metal antenna body 1 on antenna performance.

[0036] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A GNSS metal antenna, comprising a metal antenna body and a plastic support, characterized in that: The metal antenna body is embedded in the plastic bracket by insert injection molding. The plastic bracket includes a rectangular mounting base and a top wall on the top of the mounting base. The top wall has a through groove running vertically through its center. The outer periphery of the through groove is connected to four horizontal grooves located on the top of the four side walls of the mounting base. The top wall forms pressure plates at both ends of the horizontal grooves. The metal antenna body includes four sets of metal pressure plate assemblies. The metal pressure plate assemblies are located in the four side walls of the mounting base and are fixed longitudinally to the mounting base by the pressure plates and partially exposed in the horizontal grooves.

2. A GNSS metal antenna according to claim 1, characterized in that: The metal pressing assembly includes a first metal pressing sheet and a second metal pressing sheet arranged in parallel. The first metal pressing sheet consists of a first body arranged horizontally and a first bent portion arranged vertically at the end of the first body. The second metal pressing sheet consists of a second body arranged horizontally, a second bent portion arranged vertically at the end of the second body, and a third bent portion connected to the second bent portion. The first bent portion, the second bent portion, and the third bent portion are located at the same end.

3. A GNSS metal antenna according to claim 2, characterized in that: Fixing holes are provided in the areas where the first and second bodies overlap with the pressure plate.

4. A GNSS metal antenna according to claim 3, characterized in that: The side of the third bend is provided with an outwardly protruding buckle.

5. A GNSS metal antenna according to claim 1, characterized in that: The mounting base has a positioning groove on the inner side wall.

6. A GNSS metal antenna according to claim 1, characterized in that: The mounting base has elastic cantilever arms at at least three corners, and the bottom of the elastic cantilever arms has buckles.

7. A GNSS metal antenna according to claim 1, characterized in that: The plastic bracket is made of PC.

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