Vehicle-mounted millimeter wave radar

Abstract

A vehicle-mounted millimeter wave radar provided by the utility model comprises a PCB, an antenna housing and a housing, the PCB is provided with a first side wall and a second side wall which are opposite to each other, a first abutting member is arranged in the antenna housing, the PCB is installed in the antenna housing, the first abutting member is used for abutting against the first side wall, the housing is connected with the antenna housing, a second abutting member is arranged in the housing, and the second abutting member is used for abutting against the second side wall. The second abutting piece is used for abutting against the second side wall, and the second abutting piece and the first abutting piece jointly fix the PCB, so that rapid installation of the PCB is achieved, the assembly time of the vehicle-mounted millimeter wave radar is shortened, and the assembly efficiency of the vehicle-mounted millimeter wave radar is improved.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle radar technology, and more specifically, relates to a vehicle-mounted millimeter-wave radar. Background Technology

[0002] Automotive millimeter-wave radar is a widely used sensor technology in intelligent driving and vehicle safety systems. A typical radar structure includes a plastic housing, a PCB board, and an radome. The PCB inside the radar is usually fixed to the radome with multiple screws. This approach has the following drawbacks: due to the large number of screws, each needing to be precisely positioned to ensure PCB stability, the assembly process is cumbersome, thus impacting assembly efficiency. Utility Model Content

[0003] The purpose of this utility model embodiment is to provide an in-vehicle millimeter-wave radar to solve the technical problem that the PCB board assembly process of in-vehicle millimeter-wave radar is relatively cumbersome in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a vehicle-mounted millimeter-wave radar, comprising:

[0005] PCB board, having opposing first and second sidewalls;

[0006] The antenna radome has a first abutment inside, the PCB board is installed inside the antenna radome, and the first abutment is used to abut against the first side wall;

[0007] The housing is connected to the antenna cover and has a second abutment inside. The second abutment is used to abut against the second side wall and together with the first abutment, fixes the PCB board.

[0008] Optionally, the first abutment is a reinforcing rib structure protruding from the side wall of the antenna cover parallel to the PCB board.

[0009] Optionally, the second abutment is a ring structure protruding from the side wall of the housing parallel to the PCB board.

[0010] Optionally, it also includes:

[0011] Positioning posts are located on the inner side of the antenna cover or the housing;

[0012] The PCB board has positioning holes, and the positioning pins are inserted into the positioning holes to position the PCB board.

[0013] Optionally, the number of positioning posts is two, and the two positioning posts are spaced apart;

[0014] There are two positioning holes, and each positioning hole corresponds to one of the two positioning posts. Each positioning post is inserted into the corresponding positioning hole.

[0015] Optionally, the housing is provided with a first slot, and the antenna cover is provided with a plug-in part, which is engaged in the first slot.

[0016] Optionally, along the direction from the radome to the housing, the length of the insertion portion is less than the depth of the first slot.

[0017] Optionally, a limiting part is provided on the outer wall of the insertion part, and a limiting end face is provided on the side of the limiting part facing the housing. The limiting end face is spaced apart from the side wall where the opening of the first slot is located, so that an adjustment space is formed between the limiting end face and the side wall where the opening of the first slot is located.

[0018] Optionally, it also includes:

[0019] A sealing ring is installed in the first slot, and the plug part abuts against the sealing ring to seal the connection between the antenna cover and the housing.

[0020] Optionally, the sealing ring is provided with a second slot, and the insertion part is inserted into the second slot.

[0021] The beneficial effects of the vehicle-mounted millimeter-wave radar provided by this utility model are as follows: Compared with the prior art, the vehicle-mounted millimeter-wave radar provided by this utility model includes a PCB board, an antenna cover, and a housing. The PCB board has a first sidewall and a second sidewall. A first abutting member is provided inside the antenna cover. The PCB board is installed inside the antenna cover, and the first abutting member is used to abut against the first sidewall. The housing is connected to the antenna cover, and a second abutting member is provided inside the housing. The second abutting member is used to abut against the second sidewall and, together with the first abutting member, fixes the PCB board, thereby realizing the rapid installation of the PCB, reducing the assembly time of the vehicle-mounted millimeter-wave radar, and improving the assembly efficiency of the vehicle-mounted millimeter-wave radar. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1An exploded structural diagram of a vehicle-mounted millimeter-wave radar provided for an embodiment of this utility model;

[0024] Figure 2 A cross-sectional view of a vehicle-mounted millimeter-wave radar provided for an embodiment of this utility model;

[0025] Figure 3 for Figure 2 Enlarged view of the structure of section A in the middle;

[0026] Figure 4 A schematic diagram of the structure of the first sidewall of the PCB board provided in this embodiment of the utility model;

[0027] Figure 5 A schematic diagram of the structure of the second sidewall of the PCB board provided in an embodiment of this utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the radome provided in an embodiment of the present utility model;

[0029] Figure 7 A schematic diagram of the structure of the housing provided in an embodiment of this utility model.

[0030] The following are the labeling elements in the figure:

[0031] 10. PCB board; 11. First sidewall; 12. Second sidewall; 13. Positioning hole; 20. Antenna radome; 21. Reinforcing rib structure; 22. Positioning post; 23. Insertion part; 24. Limiting part; 25. Limiting end face; 30. Housing; 31. Ring structure; 32. First slot; 40. Screw; 50. Sealing ring; 51. Second slot. Detailed Implementation

[0032] To make the technical problems, technical solutions, and beneficial effects 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 merely illustrative of the present utility model and are not intended to limit the present utility model.

[0033] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0034] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0036] Please refer to the following: Figures 1 to 7 The vehicle-mounted millimeter-wave radar provided in the embodiments of this utility model will now be described.

[0037] A vehicle-mounted millimeter-wave radar includes a PCB board 10, an antenna radome 20, and a housing 30.

[0038] The PCB board 10 has a first sidewall 11 and a second sidewall 12, and the first sidewall 11 is provided with a radar wave transmitting and radar wave receiving module, which are integrated together.

[0039] The radome 20 has a first abutment inside, and the PCB board 10 is installed inside the radome 20. The first abutment is used to abut against the first sidewall 11. The housing 30 is connected to the radome 20 by screws 40, and the screws 40 pass through the housing 30 and are threaded into the radome 20. The housing 30 has a second abutment inside, which is used to abut against the second sidewall 12 and, together with the first abutment, fixes the PCB board 10.

[0040] Compared with the prior art, the vehicle-mounted millimeter-wave radar provided by this utility model includes a PCB board 10, an antenna radome 20, and a housing 30. The PCB board 10 has a first sidewall 11 and a second sidewall 12. The antenna radome 20 is provided with a first abutment. The PCB board 10 is installed inside the antenna radome 20, and the first abutment is used to abut against the first sidewall 11. The housing 30 is connected to the antenna radome 20, and the housing 30 is provided with a second abutment. The second abutment is used to abut against the second sidewall 12 and together with the first abutment, fixes the PCB board 10, thereby realizing the rapid installation of the PCB, reducing the assembly time of the vehicle-mounted millimeter-wave radar, and improving the assembly efficiency of the vehicle-mounted millimeter-wave radar.

[0041] Specifically, in this utility model, the first abutting member is a reinforcing rib structure 21 protruding from the side wall of the antenna cover 20 parallel to the PCB board 10. The end of the reinforcing rib structure 21 away from the side wall of the antenna cover 20 parallel to the PCB board 10 abuts against the first side wall 11 on the PCB board 10. The second abutting member is a ring structure 31 protruding from the side wall of the housing 30 parallel to the PCB board 10. The side of the ring structure 31 away from the side wall of the housing 30 parallel to the PCB board 10 abuts against the second side wall 12.

[0042] The PCB is fixed inside the radome 20 by the reinforcing rib structure 21 inside the radome 20 and the ring structure 31 inside the housing 30 clamping the PCB on both sides of the PCB board 10.

[0043] In this utility model, the vehicle-mounted millimeter-wave radar also includes a positioning post 22.

[0044] In one embodiment of this utility model, the positioning post 22 is disposed on the inner side of the radome 20 and protrudes from the side wall of the radome 20 parallel to the PCB board 10. A positioning hole 13 is provided on the PCB board 10, extending through the PCB board 10 along its thickness direction. When the PCB board 10 is installed inside the radome 20, the positioning rod is inserted into the positioning hole 13 to facilitate positioning of the PCB board 10.

[0045] In another embodiment of this utility model, the positioning post 22 is disposed on the inner side of the housing 30 and protrudes from the side wall of the housing 30 parallel to the PCB board 10. A positioning hole 13 is provided on the PCB board 10, extending through the PCB board 10 along its thickness direction. When the PCB board 10 is installed inside the housing 30, the positioning rod is inserted into the positioning hole 13 to facilitate positioning of the PCB board 10.

[0046] In one embodiment of this utility model, there are two positioning posts 22, which are spaced apart. There are also two positioning holes 13, which correspond one-to-one with the two positioning posts 22, and each positioning post 22 is inserted into its corresponding positioning hole 13.

[0047] By setting the two positioning posts 22 at intervals, when positioning the PCB, the two positioning posts 22 are inserted into the two positioning holes 13 to achieve precise positioning of the PCB board 10.

[0048] Optionally, the housing 30 is provided with a first slot 32, and the antenna cover 20 is provided with a plug-in part 23. The plug-in part 23 is engaged in the first slot 32 and is in the direction from the antenna cover 20 to the housing 30. The length of the plug-in part 23 is smaller than the depth of the first slot 32.

[0049] By setting the length of the plug-in part 23 to be smaller than the depth of the first slot 32, when the housing 30 is connected to the radome 20, the depth of the plug-in part 23 inserted into the first slot 32 is adjusted, that is, the distance between the plug-in part 23 and the bottom wall of the first slot 32 is adjusted, so as to ensure the reliability of the clamping of the PCB board 10 by the reinforcing rib structure 21 in the radome 20 and the inner ring structure 31 of the housing 30. At the same time, the radome 20 and the housing 30 can clamp PCB boards 10 of different thicknesses.

[0050] In one embodiment of the present invention, a limiting part 24 is provided on the outer wall of the plug-in part 23, and a limiting end face 25 is provided on the side of the limiting part 24 facing the housing 30. The limiting end face 25 is spaced apart from the side wall where the opening of the first slot 32 is located, so that an adjustment space is formed between the limiting end face 25 and the side wall where the opening of the first slot 32 is located.

[0051] The adjustment space can be adjusted by adjusting the depth of the bolts screwed into the antenna radome 20. For example, when the distance between the limiting end face 25 and the side wall where the opening of the first slot 32 is located is reduced, the distance between the reinforcing rib structure 21 and the ring structure 31 is also reduced. This ensures the reliability of the reinforcing rib structure 21 in the antenna radome 20 and the ring structure 31 in the housing 30 in clamping the PCB board 10, and enables the antenna radome 20 and the housing 30 to clamp PCB boards 10 of different thicknesses.

[0052] In one embodiment of this utility model, the vehicle-mounted millimeter-wave radar also includes a sealing ring 50.

[0053] The sealing ring 50 is installed in the first slot 32. The sealing ring 50 is used to ensure the sealing of the connection between the radome 20 and the housing 30. The insertion part 23 abuts against the sealing ring 50 to seal the connection between the radome 20 and the housing 30.

[0054] In one embodiment of the present invention, the sealing ring 50 is provided with a second slot 51, and the insertion part 23 is inserted into the second slot 51.

[0055] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vehicle-mounted millimeter-wave radar, characterized in that, include: PCB board (10) having opposing first sidewalls (11) and second sidewalls (12); The antenna cover (20) has a first abutment inside. The PCB board (10) is installed inside the antenna cover (20), and the first abutment is used to abut against the first side wall (11). The housing (30) is connected to the antenna cover (20) and has a second abutment inside. The second abutment is used to abut against the second side wall (12) and together with the first abutment, fixes the PCB board (10).

2. The vehicle-mounted millimeter-wave radar as described in claim 1, characterized in that, The first abutting member is a reinforcing rib structure (21) protruding from the side wall of the antenna cover (20) parallel to the PCB board (10).

3. The vehicle-mounted millimeter-wave radar as described in claim 1, characterized in that, The second abutment is a ring structure (31) protruding from the side wall of the housing (30) parallel to the PCB board (10).

4. The vehicle-mounted millimeter-wave radar as described in claim 1, characterized in that, Also includes: Positioning post (22) is disposed on the inner side of the radome (20) or the housing (30); The PCB board (10) has a positioning hole (13), and the positioning post (22) is inserted into the positioning hole (13) to position the PCB board (10).

5. The vehicle-mounted millimeter-wave radar as described in claim 4, characterized in that, The number of the positioning posts (22) is two, and the two positioning posts (22) are arranged at intervals; There are two positioning holes (13), and the two positioning holes (13) correspond one-to-one with the two positioning posts (22). Each positioning post (22) is inserted into the corresponding positioning hole (13).

6. The vehicle-mounted millimeter-wave radar as described in claim 1 or 5, characterized in that, The housing (30) is provided with a first slot (32), and the antenna cover (20) is provided with a plug-in part (23), which is engaged in the first slot (32).

7. The vehicle-mounted millimeter-wave radar as described in claim 6, characterized in that, Along the direction from the radome (20) to the housing (30), the length of the insertion part (23) is less than the depth of the first slot (32).

8. The vehicle-mounted millimeter-wave radar as described in claim 7, characterized in that, The outer wall of the insertion part (23) is provided with a limiting part (24), and the limiting part (24) is provided with a limiting end face (25) on the side facing the housing (30). The limiting end face (25) is spaced apart from the side wall where the opening of the first slot (32) is located, so that an adjustment space is formed between the limiting end face (25) and the side wall where the opening of the first slot (32) is located.

9. The vehicle-mounted millimeter-wave radar as described in claim 8, characterized in that, Also includes: A sealing ring (50) is installed in the first slot (32), and the plug part (23) abuts against the sealing ring (50) to seal the connection between the antenna cover (20) and the housing (30).

10. The vehicle-mounted millimeter-wave radar as described in claim 9, characterized in that, The sealing ring (50) is provided with a second slot (51), and the insertion part (23) is inserted into the second slot (51).

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