Vehicle-mounted waterproof high-precision satellite positioning antenna

Abstract

The utility model relates to a vehicle-mounted waterproof high-precision satellite positioning antenna, which comprises a shell, a cover body and an antenna body hidden in the shell, and is characterized in that a first step and a second step which are annularly arranged are sequentially arranged on the inner side wall of the shell from outside to inside; a first convex part and a second convex part which are annularly arranged are correspondingly arranged on the cover body, the cover body is embedded on the shell, the first convex part is propped against the first step to form a first ultrasonic welding area, and the second convex part is propped against the second step to form a second ultrasonic welding area; an annular water blocking groove is formed between the first ultrasonic welding area and the second ultrasonic welding area. The waterproof and anti-seismic sealing LED lamp has excellent waterproof, anti-seismic and sealing performance, and has the advantages of good weather resistance, long service life and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of antennas, in particular to a vehicle-mounted satellite positioning antenna. Background Art

[0002] The vehicle-mounted antenna is an essential component for a car to receive wireless information data, but if moisture seeps into the antenna, the electronic components inside will be damaged, seriously affecting its normal use. Usually, the waterproofing of the vehicle-mounted antenna is achieved by setting a sealing pad at the connection, but the sealing pad is prone to aging, resulting in a decrease in sealing performance, and requires regular inspection and replacement. The Chinese patent document with application number 201720291250.4 and name "A Beidou / GPS vehicle-mounted receiving antenna" discloses a technical solution that uses ultrasonic welding technology to bond the antenna cover to the base to increase the product's anti-aging performance. However, there are still some problems with this technology during production and use, which are specifically reflected as follows:

[0003] In this technical solution, the upper cover and the base can only be connected together by ultrasonic welding at the edge of the base. In addition, the volume of this type of antenna is very small, and its base is also very small and thin, so that the welding area between the upper cover and the base is very small, and no welding limit structure is set in this technical solution. In this way, during the ultrasonic welding process, the upper cover and the base are prone to displacement and misalignment, resulting in that the welding degree between the two is not particularly firm and sealed, affecting the waterproofness and sealing of the package, and it is easy to produce overflow or burrs at the outer edge position of the upper cover and the base. After the welding package is packaged, an additional process is required to trim it, which not only increases the production cycle but also increases the production cost. In addition, since the welding area is very small, the connection between the upper cover and the base is relatively fragile, and the product has poor shock resistance. If it encounters a bump or fall, the weld is prone to cracking, and even the upper cover and the base are separated. This cannot protect the internal electronic components well. Not only is it easy for moisture or dust to penetrate into the antenna and corrode the electronic components, but the electronic components are also easily damaged by bumps, thereby affecting the normal use of the antenna. Utility Model Content

[0004] The utility model aims to solve the above-mentioned problems and shortcomings, and provides a vehicle-mounted waterproof high-precision satellite positioning antenna. The antenna is provided with mutually nested double steps and double convex structures on the shell and the cover body, so that on the one hand, the cover body is limitedly covered in the shell, avoiding displacement between the cover body and the shell during ultrasonic welding, thereby helping to improve the quality of ultrasonic welding; on the other hand, an ultrasonic welding area is formed between the step and the convex part, which not only increases the effective ultrasonic welding area, but also enables the melted plastic to remain between the step and the convex part, increasing the bonding connection surface between them, and effectively preventing the melted plastic from overflowing, so that there is no overflow or burring after the product is packaged, which can not only greatly improve the bonding strength of the ultrasonic welding of the product, improve the waterproof, shockproof and sealing performance of the product, but also save the finishing process after welding and packaging, thereby improving the effectiveness efficiency and reducing the production cost; in addition, by forming an annular water retaining groove between the two ultrasonic welding areas, the waterproof performance of the product can be further improved, which helps to ensure the service life and weather resistance of the product and enhance its adaptability to harsh use environments.

[0005] The technical solution of the utility model is achieved as follows: a vehicle-mounted waterproof high-precision satellite positioning antenna, comprising a shell, a cover body, and an antenna body hidden in the shell, characterized in that: the inner wall of the shell is provided with a first step and a second step arranged in a ring from the outside to the inside, and the cover body is correspondingly provided with a first convex portion and a second convex portion arranged in a ring, the cover body is embedded in the shell, and the first convex portion is in conflict with the first step to form a first ultrasonic welding area, the second convex portion is in conflict with the second step to form a second ultrasonic welding area, and an annular water retaining groove is formed between the first ultrasonic welding area and the second ultrasonic welding area.

[0006] Furthermore, a first ultrasonic fuse is disposed on the first step, and the first ultrasonic fuse abuts against the first protrusion to form the first ultrasonic welding area.

[0007] Furthermore, the second step is provided with a ring-shaped mounting flange, the mounting flange is provided with a second ultrasonic fuse, the mounting flange is embedded in the second convex portion, and the second ultrasonic fuse is in contact with the second convex portion to form the second ultrasonic welding area.

[0008] Furthermore, the second convex portion is provided with an embedding groove, the embedding groove is embedded with the mounting convex edge, and the groove bottom of the embedding groove is in contact with the second ultrasonic fuse to form the second ultrasonic welding area.

[0009] Furthermore, a plurality of first reinforcing plates are provided on the inner side wall of the mounting protrusion, a plurality of second reinforcing plates are correspondingly provided on the inner side wall of the second protrusion, and an annular convex strip is provided on the antenna body. The antenna body is clamped between the plurality of first reinforcing plates and the second reinforcing plates through the annular convex strip to fix it between the cover body and the shell.

[0010] Furthermore, a plurality of third reinforcing plates for enhancing the structural strength of the mounting flange are also provided in the annular water retaining groove.

[0011] Furthermore, the shell is provided with a cable installation notch, a third ultrasonic fuse is provided at the bottom of the cable installation notch, and a packaging block is correspondingly provided on the cover body, the packaging block and the third ultrasonic fuse are in contact with each other to form a third ultrasonic welding area.

[0012] Beneficial effects of the utility model:

[0013] First, during assembly, the first convex portion and the second convex portion on the cover body are respectively embedded in the first step and the second step, so that the cover body is very stably limited in the shell, so that during ultrasonic welding, it is not easy for the cover body and the shell to shift or misalign, which effectively prevents the phenomenon of cold welding and false welding in the welding area, thereby greatly improving the welding quality, ensuring the bonding strength of the welding area, and greatly improving the waterproof, shockproof and sealing performance of the product.

[0014] Secondly, a larger welding area can be formed between the step and the convex part of the utility model, and there are two ultrasonic welding areas at the same time, which makes the connection area between the shell and the cover body larger, which is conducive to strengthening the bonding strength and sealing between the two, thereby making the utility model have very good waterproof and shockproof functions, and the shell and the cover body can better protect the internal antenna body, ensuring that the antenna body can be used for a long time while maintaining high-precision working performance; in addition, since the step is arranged on the inner wall of the shell and the cover body is embedded in the shell, the ultrasonic welding area is also hidden inside the shell, so that the molten plastic will not overflow to the outside of the shell during ultrasonic welding. Therefore, after the ultrasonic welding packaging, the utility model will not produce overflow or burrs on the outside of the product, thereby eliminating the finishing process after the product packaging, thereby shortening the production cycle and saving costs.

[0015] In addition, an annular water retaining groove is formed between the two ultrasonic welding areas of the utility model. Even if cracks occur in the first ultrasonic welding area located on the outside, and harmful objects such as moisture or ash penetrate into the shell, these harmful objects will not cause damage to the antenna body due to the obstruction of the annular water retaining groove; and the second ultrasonic welding area is hidden inside the shell, which can effectively avoid the influence of the external environment and enable it to maintain good mechanical strength and sealing performance for a long time, thereby protecting the antenna body from damage by adverse external factors for a long time, thereby greatly improving the weather resistance and service life of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the structural decomposition of the utility model.

[0018] Figure 3 It is a schematic diagram of the internal structure of the cover body in the utility model.

[0019] Figure 4 It is a schematic diagram of the internal structure of the shell in the utility model.

[0020] Figure 5 For this utility model Figure 4 A partial enlarged view of part A.

[0021] Figure 6 It is a schematic diagram of the combined structure of the shell and the cover in the utility model.

[0022] Figure 7 For this utility model Figure 6 A partial enlarged view of part B. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is clearly and completely described below in conjunction with the accompanying drawings of the present invention.

[0024] like Figure 2 , Figure 6 , Figure 7As shown, the utility model provides a vehicle-mounted waterproof high-precision satellite positioning antenna, including a shell 1, a cover body 2, and an antenna body 3 hidden in the shell 1. In order to achieve the purpose proposed by the utility model, the inner wall of the shell 1 is provided with a first step 11 and a second step 12 arranged in an annular shape from the outside to the inside, and the cover body 2 is correspondingly provided with a first convex portion 21 and a second convex portion 22 arranged in an annular shape. The cover body 2 is embedded in the shell 1, and the first convex portion 21 conflicts with the first step 11 to form a first ultrasonic welding area, and the second convex portion 22 conflicts with the second step 12 to form a second ultrasonic welding area. An annular water retaining groove 16 is formed between the first ultrasonic welding area and the second ultrasonic welding area. In this way, the cover body 2 is embedded in the shell body 1, and the two ultrasonic welding areas are also hidden inside the shell body 1, so as to avoid the melted plastic overflowing to the outside of the shell body during ultrasonic welding, thereby eliminating the finishing process after packaging, which is not only conducive to saving production time, but also can reduce production costs; in addition, the cover body 2 is stably positioned in the shell body, and during ultrasonic welding, it is not easy for the cover body 2 and the shell body 1 to shift, thereby effectively reducing the occurrence of cold welding or false welding during welding, thereby greatly improving the welding quality, ensuring that the shell body 1 and the cover body 2 are firmly bonded together, and have very good waterproof performance and sealing Performance, the utility model can achieve IP67 waterproof grade, and at the same time, the utility model also has very good shockproof performance, which can better protect the internal antenna body; two ultrasonic welding areas are formed between the shell and the cover, especially the second ultrasonic welding area is completely hidden inside the shell, which can greatly reduce the adverse effects of the external environment. In this way, even if the first ultrasonic welding area is damaged and cracks are generated, the second ultrasonic welding area can continue to maintain sealing, thereby maintaining effective protection for the internal antenna body, ensuring that the utility model can continue to work stably and provide users with high-precision satellite positioning services.

[0025] like Figures 4 to 7 As shown, a first ultrasonic fuse 41 is disposed on the first step 11, and the first ultrasonic fuse 41 contacts the first protrusion 21 to form a first ultrasonic welding area. In this way, during welding, the ultrasonic fuse 41 can concentrate the vibration energy of the ultrasonic wave on the fuse, so that the fuse quickly melts and flows to the entire welding area, quickly and firmly bonding the two welding surfaces together.

[0026] like Figures 4 to 7As shown, the second step 12 is provided with a mounting flange 13 arranged in a ring shape, and the mounting flange 13 is provided with a second ultrasonic fuse 42, and the mounting flange 13 is embedded with the second protrusion 22, and the second ultrasonic fuse 42 and the second protrusion 22 collide to form a second ultrasonic welding area. The second ultrasonic fuse 42 is preferably arranged on the top surface of the mounting flange 13, so that the position of the second ultrasonic welding area is higher than the surface of the second step 12, even if cracks appear in the second ultrasonic welding area, when moisture penetrates into the second step 12, due to the blocking of the mounting flange 13, the moisture will not penetrate into the inner cavity of the shell 1 to affect the antenna body 3, thereby further improving the waterproofness of the product and ensuring that the antenna body will not be affected.

[0027] like Figure 3 , Figure 6 , Figure 7 As shown, the second convex part 22 is provided with an embedding groove 23, and the embedding groove 23 is embedded with the mounting flange 13, and the bottom of the embedding groove 23 contacts the second ultrasonic fuse 42 to form a second ultrasonic welding area. In this way, on the one hand, the positioning of the cover body 2 on the shell body 1 can be more stable, and the displacement of the two during ultrasonic welding can be further prevented, thereby ensuring the welding quality; on the other hand, the mounting flange 13 is inserted into the embedding groove 23, which further strengthens the connection strength between the second convex part 22 and the mounting flange 13, and the second ultrasonic welding area is hidden inside the embedding groove 23. During welding, the molten plastic not only flows to the welding area, but also flows to the two sides of the mounting flange 13, thereby further improving the bonding strength of the welding.

[0028] like Figures 2 to 7 As shown, a plurality of first reinforcing plates 14 are provided on the inner side wall of the mounting flange 13, a plurality of second reinforcing plates 24 are correspondingly provided on the inner side wall of the second protrusion 22, and an annular convex strip 32 is provided on the antenna body 3. The antenna body 3 is clamped between the plurality of first reinforcing plates 14 and the second reinforcing plates 24 by the annular convex strip 32 so as to be fixed between the cover body 2 and the shell 1. In this way, the antenna body 3 can be fixed in the shell 1 without adopting other fixing methods, which not only saves costs but also greatly speeds up the assembly efficiency. In addition, since the volumes of the shell 1 and the cover body 2 are relatively small, the mounting flange 13 and the second protrusion 22 are relatively thin. The provision of the reinforcing plate can greatly enhance the mechanical strength of the mounting flange 13 and the second protrusion 22, so that the cover body 2 and the shell 1 can be assembled together more stably, thereby greatly improving their anti-seismic ability.

[0029] like Figure 4 , Figure 5As shown, the annular water retaining groove 16 is also provided with a plurality of third reinforcing plates 15 for enhancing the structural strength of the mounting flange 13. This further strengthens the mechanical strength of the mounting flange 13, and also increases the mechanical strength of the side wall of the housing 1, thereby further improving the anti-seismic ability of the product. When manufacturing, it is preferred that the first step 11, the second step 12, the mounting flange 13, the first reinforcing plate 14, and the third reinforcing plate 15 are all integrated with the housing 1, which can further improve the mechanical strength of the housing 1, thereby improving the anti-seismic ability of the product.

[0030] like Figures 2 to 4 As shown, the housing 1 is also provided with a cable installation notch 17, and a third ultrasonic fuse 43 is provided at the bottom of the cable installation notch 17. The cover 2 is correspondingly provided with a packaging block 26, and the packaging block 26 and the third ultrasonic fuse 43 collide to form a third ultrasonic welding area. The cable installation notch 17 is provided with a groove for the cable 31 to be embedded, and the third ultrasonic fuse 43 is preferably arranged on the left and right sides of the groove. In this way, the cable 31 is embedded in the cable installation notch 17, and the antenna body 3 is electrically connected to the external display device. The cable installation notch 17 can also be sealed by ultrasonic welding, thereby eliminating the sealing dead angle and preventing moisture from penetrating into the antenna in all directions, ensuring that the antenna body can work stably, and providing customers with high-precision satellite positioning services.

[0031] like Figure 1 , Figure 2 As shown, a plurality of magnet blocks 6 can be evenly arranged on the top surface of the cover body 2, so that when the utility model is used in a magnetic metal environment, it can be conveniently moved according to actual conditions. Preferably, four magnet blocks 6 are evenly arranged on the top surface of the cover body 2, and the magnet blocks 6 are preferably strong neodymium iron boron magnets.

[0032] like Figure 1 , Figure 2 As shown, an adhesive layer 5 is further provided on the top surface of the cover body 2, so that the product can be installed directly through the adhesive layer 5, which is convenient and quick. The adhesive layer 5 is preferably made of foam adhesive.

[0033] like Figure 1 , Figure 2 As shown, the four corners of the cover body 2 are respectively provided with mounting screw holes 7, so that when the utility model is used in an extreme vibration environment, the product can be fixed by bolts to prevent it from falling due to vibration. The mounting screw holes 7 are preferably made of metal hot-melt nuts.

[0034] In the specific implementation, the adhesive layer 5, the magnet block 6 and the mounting screw hole 7 can be set on the top surface of the cover body 2 at the same time, and the adhesive layer 5 is placed on the upper layer of the magnet block 6 and the mounting screw hole 7. In this way, the product is more applicable and does not require special customization. Customers can flexibly choose the installation method according to their needs.

Claims

1. A vehicle-mounted waterproof high-precision satellite positioning antenna, comprising a housing (1), a cover (2), and an antenna body (3) hidden in the housing (1), characterized in that: The inner side wall of the shell (1) is provided with a first step (11) and a second step (12) arranged in an annular shape in sequence from the outside to the inside, and the cover body (2) is correspondingly provided with a first convex portion (21) and a second convex portion (22) arranged in an annular shape. The cover body (2) is embedded in the shell (1), the first convex portion (21) and the first step (11) are in contact with each other to form a first ultrasonic welding area, the second convex portion (22) and the second step (12) are in contact with each other to form a second ultrasonic welding area, and an annular water retaining groove (16) is formed between the first ultrasonic welding area and the second ultrasonic welding area.

2. The vehicle-mounted waterproof high-precision satellite positioning antenna according to claim 1, characterized in that: A first ultrasonic fuse (41) is provided on the first step (11), and the first ultrasonic fuse (41) abuts against the first convex portion (21) to form the first ultrasonic welding area.

3. The vehicle-mounted waterproof high-precision satellite positioning antenna according to claim 1, characterized in that: The second step (12) is provided with a mounting flange (13) arranged in an annular shape, and a second ultrasonic fuse (42) is provided on the mounting flange (13). The mounting flange (13) is embedded in the second convex portion (22), and the second ultrasonic fuse (42) and the second convex portion (22) are in contact with each other to form the second ultrasonic welding area.

4. The vehicle-mounted waterproof high-precision satellite positioning antenna according to claim 3, characterized in that: The second convex portion (22) is provided with an embedding groove (23), the embedding groove (23) is embedded with the mounting convex edge (13), and the groove bottom of the embedding groove (23) abuts against the second ultrasonic fuse (42) to form the second ultrasonic welding area.

5. The vehicle-mounted waterproof high-precision satellite positioning antenna according to claim 3, characterized in that: A plurality of first reinforcing plates (14) are provided on the inner side wall of the mounting flange (13), a plurality of second reinforcing plates (24) are correspondingly provided on the inner side wall of the second convex portion (22), an annular convex strip (32) is provided on the antenna body (3), and the antenna body (3) is clamped between the plurality of first reinforcing plates (14) and the second reinforcing plates (24) by the annular convex strip (32) so as to be fixed between the cover body (2) and the shell body (1).

6. The vehicle-mounted waterproof high-precision satellite positioning antenna according to claim 5, characterized in that: A plurality of third reinforcing plates (15) for enhancing the structural strength of the mounting flange (13) are also provided in the annular water retaining groove (16).

7. The vehicle-mounted waterproof high-precision satellite positioning antenna according to claim 1, characterized in that: The shell (1) is also provided with a cable installation notch (17), and a third ultrasonic fuse (43) is provided at the bottom of the cable installation notch (17). A packaging block (26) is correspondingly provided on the cover (2), and the packaging block (26) and the third ultrasonic fuse (43) are in contact with each other to form a third ultrasonic welding area.

8. The vehicle-mounted waterproof high-precision satellite positioning antenna according to claim 1, characterized in that: A plurality of magnet blocks (6) are evenly arranged on the top surface of the cover body (2).

9. The vehicle-mounted waterproof high-precision satellite positioning antenna according to claim 1, characterized in that: An adhesive layer (5) is also provided on the top surface of the cover body (2).

10. The vehicle-mounted waterproof high-precision satellite positioning antenna according to claim 1, characterized in that: The four corners of the cover body (2) are respectively provided with mounting screw holes (7).

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