Automobile wide-angle millimeter wave radar

Abstract

The utility model relates to the technical field of automobile radars, in particular to an automobile wide-angle millimeter-wave radar which comprises a bottom cover, an upper cover is installed at the top end of the bottom cover, an internal support is arranged in the upper cover, the surface of the internal support is connected with a main PCBA board, a radar assembly is arranged at the top of the internal support, and the radar assembly is connected with the main PCBA board. The radar assembly is composed of a front millimeter-wave radar located in the middle, a left millimeter-wave radar and a right millimeter-wave radar, the left millimeter-wave radar and the right millimeter-wave radar are located on the two sides, the left millimeter-wave radar and the right millimeter-wave radar are symmetrically distributed about the center line of the front millimeter-wave radar, and a foam pad with a waterproof ventilation groove is pasted to the bottom end of the bottom cover. A wire harness is arranged below the bottom cover. According to the utility model, the middle millimeter-wave radar is arranged to be 77G, and the millimeter-wave radars at the two sides are arranged to be 24G, so that the blind area of the traditional single millimeter-wave radar is solved, the increased cost is not high compared with the single 77G millimeter-wave radar, and the cost performance is good.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile radars, in particular to an automobile large-angle millimeter-wave radar. Background Art

[0002] At present, in order to improve the driving safety of automobiles, millimeter-wave radars installed on automobiles are used to detect obstacles on the road surface. When dangerous obstacles are detected, the radar system will give an alarm to the driver in the car. For example, when a millimeter-wave radar is installed in front of a car, usually only one millimeter-wave radar is used in front of the car, but the horizontal detection range of the millimeter-wave radar itself is fan-shaped, and the horizontal detection angle is usually 80-150°. Therefore, there are blind spots on the left and right sides of the millimeter-wave radar near the front bumper of the vehicle, which poses a great safety hazard. Utility Model Content

[0003] The utility model aims to provide a large-angle millimeter-wave radar for an automobile, so as to solve the problem in the prior art that only one millimeter-wave radar is used in front of the vehicle, resulting in a blind spot in the front bumper of the vehicle.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a large-angle millimeter-wave radar for an automobile, the radar assembly consisting of a front millimeter-wave radar located in the middle and a left millimeter-wave radar and a right millimeter-wave radar located on both sides, and the left millimeter-wave radar and the right millimeter-wave radar are symmetrically distributed about the center line of the front millimeter-wave radar; the front millimeter-wave radar faces the front of the radar body, and the detection direction is 90° with the horizontal axis of the radar body, which is used to cover most of the entire detection area of ​​the radar assembly, and the detection range is larger than that of the left millimeter-wave radar and the right millimeter-wave radar; the left millimeter-wave radar detects toward the left front, and the detection direction is 15-40° with the horizontal axis of the radar body, while the right millimeter-wave radar detects toward the right front, and the detection direction is 15-40° with the horizontal axis of the radar body, which is used to cover a small part of the entire detection area of ​​the radar assembly.

[0005] Preferably, the operating frequency of the front millimeter-wave radar is 77G, and the horizontal detection angle is 80-150°; the operating frequency of the left millimeter-wave radar and the right millimeter-wave radar is 24G, and the horizontal probe angle is 30-120°.

[0006] Preferably, it comprises a bottom cover, an upper cover is installed on the top of the bottom cover, and an internal bracket is arranged inside the upper cover, the surface of the internal bracket is connected to the main PCBA board, the top of the internal bracket is arranged with a radar assembly, a foam pad with a waterproof breathable groove is pasted on the bottom end of the bottom cover, a wiring harness is arranged below the bottom cover, and the top end of the wiring harness passes through the foam pad and the bottom cover in sequence and is interlocked with the main PCBA board, the surface of the bottom cover is provided with air holes for air convection and wire outlet holes for wire harness insertion, a waterproof breathable film is pasted on the inner surface of the bottom cover at the position of the air hole, and the waterproof breathable film completely covers the air hole; a waterproof rubber ring groove is provided on the surface of the bottom cover and on the outside of the wire outlet hole, a waterproof rubber ring is placed inside the waterproof rubber ring groove, and the waterproof rubber ring can achieve a waterproof sealing effect when the bottom cover and the upper cover are locked.

[0007] Preferably, bottom cover arrow marks are provided on both ends of the left and right ends of the bottom cover surface, radar fixing screw holes are provided on the bottom cover surface and on both sides of the bottom cover arrow marks, eight bottom cover screw holes are provided at the edge of the bottom cover surface, and anti-fool grooves are provided at both ends of one side of the bottom cover.

[0008] Preferably, the surface of one side of the upper cover is integrally injection-molded with anti-foolproof ribs, which cooperate with the anti-foolproof grooves to form anti-foolproof properties; the surface of the upper cover is integrally injection-molded with four sets of slatted ribs, which are used to support the left millimeter-wave radar and the right millimeter-wave radar, so that the left millimeter-wave radar and the right millimeter-wave radar maintain a predetermined height from the inner wall of the upper cover; the surface of the upper cover and one side of the slatted ribs is integrally injection-molded with a millimeter-wave PCBA board pressure plate groove.

[0009] Preferably, two internal bracket screw columns are respectively provided on both sides of the upper cover surface, and the internal bracket screw columns are used to support the internal bracket; four front millimeter-wave radar screw columns are provided at the central part of the upper cover surface, and the front millimeter-wave radar screw columns are used to support the front millimeter-wave radar, so that the front millimeter-wave radar maintains a predetermined height from the inner wall of the upper cover, and the front millimeter-wave radar can be fixed by screws; radar fixing screw grooves are provided at the corner positions of the upper cover surface.

[0010] Preferably, the surface of the upper cover is also provided with eight bottom cover fixing screw columns, which cooperate with the bottom cover screw holes and can threadably fix the bottom cover and the upper cover through screws; the surface of the upper cover is integrally injection-molded with a pressure strip, and when the bottom cover fixing screw columns cooperate with the bottom cover screw holes and the bottom cover and the upper cover are fixed through screws, the pressure strip will press the waterproof rubber ring to achieve sealing and waterproofing; an upper cover arrow mark is provided on one side of the upper cover surface, and the upper cover arrow mark corresponds to the bottom cover arrow mark, which can make the bottom cover and the upper cover more accurate and convenient when they are covered and installed.

[0011] Preferably, both sides of the surface of the internal bracket are integrally injection-molded with strapping screw columns, and the main PCBA board is placed on the strapping screw columns, and the strapping screw columns are used to lock and fix the main PCBA board through screws; four bracket screw holes are also provided on both sides of the surface of the internal bracket, and the bracket screw holes cooperate with the internal bracket screw columns and can lock and fix the internal bracket through screws; both sides of the bracket screw holes are also integrally injection-molded with limit blocks, which can limit the movement range of the internal bracket, thereby facilitating the installation and fixation of the internal bracket.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the automobile large-angle millimeter-wave radar sets the operating frequency of the front millimeter-wave radar to 77G, and the horizontal detection angle is 80-150°; the operating frequencies of the left millimeter-wave radar and the right millimeter-wave radar are set to 24G, and the cost of 24G millimeter-wave radar is relatively low compared to 77G millimeter-wave radar. The arrangement of the radar assembly with 77G in the middle and 24G millimeter-wave radars on both sides solves the blind spot of the traditional single millimeter-wave radar, and the increased cost is not high compared to the single 77G millimeter-wave radar, so it has a good cost performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional appearance structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the upper cover of the utility model in a separated state;

[0015] Figure 3 It is a schematic diagram of the three-dimensional explosion structure of the utility model;

[0016] Figure 4 It is an enlarged structural schematic diagram of the bottom cover of the utility model;

[0017] Figure 5 It is a schematic diagram of the enlarged structure of the upper cover of the utility model;

[0018] Figure 6 This is a schematic diagram of the internal bracket structure of the utility model when viewed from an upward angle;

[0019] Figure 7 This is a schematic diagram of the internal bracket structure of the utility model from a top-down perspective;

[0020] Figure 8 It is a schematic diagram of the detection working state structure of the utility model.

[0021] In the figure: 1. Bottom cover; 11. Anti-fool groove; 12. Ventilation hole; 101. Waterproof breathable membrane; 13. Waterproof rubber ring groove; 14. Wire outlet hole; 15. Bottom cover screw hole; 16. Bottom cover arrow mark; 17. Radar fixing screw hole; 2. Upper cover; 21. Anti-fool rib; 22. Rib strip; 23. Internal bracket screw column; 24. Pressure strip; 25. Front millimeter-wave radar screw column; 26. Upper cover arrow mark; 27. Millimeter-wave PCBA board pressure plate groove; 28. Bottom cover fixing screw column; 29. ​​Radar fixing screw groove; 3. Main PCBA board; 4. Internal bracket; 41. Rib strip screw column; 42. Bracket screw hole; 43. Limit block; 5. Front millimeter-wave radar; 6. Left millimeter-wave radar; 7. Right millimeter-wave radar; 8. Waterproof rubber ring; 9. Wiring harness; 10. Foam pad. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] The utility model provides a large-angle millimeter-wave radar for automobiles. Figure 1 as well as Figure 4 As shown, it includes a bottom cover 1, the surface of the bottom cover 1 is provided with an air vent 12 for facilitating air convection and maintaining the internal pressure of the probe consistent with that of the outside world, and a wire outlet hole 14 for facilitating the insertion of the wiring harness 9, the inner surface of the bottom cover 1 and located at the position of the air vent 12 is affixed with a waterproof breathable membrane 101, the waterproof breathable membrane 101 completely covers the air vent 12, so as to realize the radar ventilation function and prevent water from entering the interior of the radar; the surface of the bottom cover 1 and located outside the wire outlet hole 14 is provided with a waterproof rubber ring groove 13, the waterproof rubber ring 8 is placed inside the waterproof rubber ring groove 13, and the waterproof rubber ring 8 can realize a waterproof sealing function when the bottom cover 1 and the upper cover 2 are locked, the left and right ends of the surface of the bottom cover 1 are provided with a bottom cover arrow mark 16, the surface of the bottom cover 1 and located on both sides of the bottom cover arrow mark 16 are provided with a radar fixing screw hole 17, eight bottom cover screw holes 15 are provided at the edge of the surface of the bottom cover 1, and both ends of one side of the bottom cover 1 are provided with an anti-fool groove 11.

[0024] During implementation, tear off the release paper of the waterproof breathable membrane 101, align the center of the side with adhesive with the center of the air hole 12 on the bottom cover 1 and stick it on, press it tightly, and then apply glue around the waterproof breathable membrane 101 to further strengthen the seal and enhance the waterproof effect.

[0025] Furthermore, if Figure 2 as well as Figure 5As shown, the top of the bottom cover 1 is installed with an upper cover 2, and the surface of one side of the upper cover 2 is integrally injection-molded with an anti-foolproof rib 21, and the anti-foolproof rib 21 cooperates with the anti-foolproof groove 11 to form an anti-foolproof, so that the bottom cover 1 and the upper cover 2 can be installed in the correct direction; the surface of the upper cover 2 is integrally injection-molded with four groups of slat ribs 22, and the slat ribs 22 are used to receive the left millimeter-wave radar 6 and the right millimeter-wave radar 7, so that the left millimeter-wave radar 6 and the right millimeter-wave radar 7 maintain a predetermined height from the inner wall of the upper cover 2; the upper cover 2 A millimeter-wave PCBA board pressure plate groove 27 is integrally injection-molded on the surface and on one side of the board rib 22. The millimeter-wave PCBA board pressure plate groove 27 consists of two ribs. After the left millimeter-wave radar 6 and the right millimeter-wave radar 7 are placed in place on the board rib 22, they are screwed into the millimeter-wave PCBA board pressure plate groove 27 by screws. The screw cap brim is tightly pressed on the board edge of the left millimeter-wave radar 6 and the right millimeter-wave radar 7 to realize the fixing function of the left millimeter-wave radar 6 and the right millimeter-wave radar 7.

[0026] Furthermore, if Figure 3 as well as Figure 5 As shown, two internal bracket screw columns 23 are respectively provided on both sides of the surface of the upper cover 2, and the internal bracket screw columns 23 are used to undertake the internal bracket 4; four front millimeter-wave radar screw columns 25 are provided at the central part of the surface of the upper cover 2, and the front millimeter-wave radar screw columns 25 are used to undertake the front millimeter-wave radar 5, so that the front millimeter-wave radar 5 maintains a predetermined height from the inner wall of the upper cover 2, and the front millimeter-wave radar 5 can be fixed by screws; radar fixing screw grooves 29 are provided at the corner positions of the surface of the upper cover 2, and when the entire radar is installed, the screws pass through the radar fixing screw grooves 29 and the radar fixing screw holes 17 to fix the radar to the car or the bracket connected to the car.

[0027] During implementation, the left millimeter-wave radar 6 is placed on the rib 22 on the left side of the upper cover 2. After it is placed in place, the screws are locked into the millimeter-wave PCBA board pressure plate groove 27 on the left side, and the screw cap edge presses the edge of the PCBA board to fix the millimeter-wave PCBA board; there are also ribs 22 and pressure plate grooves on the right side of the upper cover 2, and the right millimeter-wave radar 7 is installed on the right side of the upper cover 2, and the installation and fixing method is the same as that of the left millimeter-wave radar 6.

[0028] Furthermore, if Figure 5As shown, the surface of the upper cover 2 is also provided with eight bottom cover fixing screw columns 28, and the bottom cover fixing screw columns 28 cooperate with the bottom cover screw holes 15 and can threadably fix the bottom cover 1 and the upper cover 2 through screws; the surface of the upper cover 2 is integrally injection-molded with a pressure strip 24, and when the bottom cover fixing screw columns 28 cooperate with the bottom cover screw holes 15 and the bottom cover 1 and the upper cover 2 are fixed through screws, the pressure strip 24 will press the waterproof rubber ring 8 to achieve sealing and waterproof work; one side of the surface of the upper cover 2 is provided with an upper cover arrow mark 26, and the upper cover arrow mark 26 corresponds to the bottom cover arrow mark 16, which can make the bottom cover 1 and the upper cover 2 more accurate and convenient when they are covered and installed.

[0029] During implementation, the upper cover 2 and the bottom cover 1 are closed in the direction of the upper cover arrow mark 26 and the bottom cover arrow mark 16, and the anti-fool rib 21 of the upper cover 2 cooperates with the anti-fool groove 11 of the bottom cover 1 to ensure that the installation direction is correct. After closing, press tightly, and then lock the screws into the eight screw holes 15 of the bottom cover 1 one by one, and the installation of the upper cover 2 group and the bottom cover 1 group is completed.

[0030] Furthermore, if Figure 6 as well as Figure 7 As shown, an internal bracket 4 is provided inside the upper cover 2, and both sides of the surface of the internal bracket 4 are integrally injection-molded with strapping screw columns 41, and the main PCBA board 3 is placed on the strapping screw columns 41, and the strapping screw columns 41 are used to lock and fix the main PCBA board 3 through screws; four bracket screw holes 42 are also provided on both sides of the surface of the internal bracket 4, and the bracket screw holes 42 cooperate with the internal bracket screw columns 23 and can lock and fix the internal bracket 4 through screws; both sides of the bracket screw holes 42 are also integrally injection-molded with limit blocks 43, and the limit blocks 43 can limit the movement range of the internal bracket 4, so as to facilitate the installation and fixation of the internal bracket 4.

[0031] During implementation, the board screw column 41 on the internal bracket 4 is placed into the upper cover 2 with the board screw column 41 facing outward, and is placed on the internal bracket screw column 23 at the bottom of the upper cover 2. The limit block 43 of the internal bracket 4 can quickly align the screw hole of the internal bracket 4 with the inner hole of the internal bracket screw column 23, and then the screws are locked in the four screw holes to complete the installation and fixation of the internal bracket 4.

[0032] Furthermore, if Figure 3As shown, the surface of the internal bracket 4 is connected to the main PCBA board 3, which is used to receive the detection signals of the front millimeter-wave radar 5, the left millimeter-wave radar 6 and the right millimeter-wave radar 7, and comprehensively form a detection signal of the 180-degree range in front of the radar; and the main PCBA board 3 can communicate with the vehicle display or controller, detect obstacles, the vehicle display gives an alarm, and the controller controls the vehicle braking system to brake, the bottom end of the bottom cover 1 is pasted with a foam pad 10 with a waterproof and breathable groove, and a wiring harness 9 is arranged below the bottom cover 1, and The top end of the wiring harness 9 passes through the foam pad 10 and the bottom cover 1 in sequence and is plugged in with the main PCBA board 3 for electrical connection. A radar assembly is arranged on the top of the internal bracket 4. The radar assembly consists of a front millimeter-wave radar 5 located in the middle and a left millimeter-wave radar 6 and a right millimeter-wave radar 7 located on both sides. The left millimeter-wave radar 6 and the right millimeter-wave radar 7 are symmetrically distributed about the center line of the front millimeter-wave radar 5, and the front millimeter-wave radar 5, the left millimeter-wave radar 6 and the right millimeter-wave radar 7 are all plugged in with the main PCBA board 3 for electrical connection.

[0033] During implementation, the plugs of the front millimeter-wave radar 5, the left millimeter-wave radar 6 and the right millimeter-wave radar 7 are plugged into the sockets of the main PCBA board 3 one by one to complete the electrical connection; then the main PCBA board 3 is placed on the strapping screw column 41 of the internal bracket 4, and the screws are locked to complete the fixation of the main PCBA board 3.

[0034] When the automobile wide-angle millimeter-wave radar of the utility model is actually used, Figure 8 As shown in the figure, A is a car, B is the radar of the utility model, C is the detection range of the front millimeter-wave radar, D is the detection range of the left millimeter-wave radar, and E is the detection range of the right millimeter-wave radar; the operating frequency of the front millimeter-wave radar 5 is 77G, and the horizontal detection angle is 80-150 degrees; the operating frequency of the left millimeter-wave radar 6 and the right millimeter-wave radar 7 is 24G, and the horizontal probe angle is 30-120 degrees, and the left millimeter-wave radar 6 detects toward the left front, and the detection direction is 15-40° with the horizontal axis of the radar body, while the right millimeter-wave radar 7 detects toward the right front, and the detection direction is 15-40° with the horizontal axis of the radar body; the detection range of the left millimeter-wave radar 6 and the right millimeter-wave radar 7 is small, covering a small part of the entire detection area of ​​the radar assembly.

[0035] Working principle: When installing this millimeter-wave radar, first place the front millimeter-wave radar 5 with its antenna facing the bottom of the upper cover 2 into the upper cover 2, and place it on the front millimeter-wave radar screw column 25. Align the screw holes of the PCBA board with the inner holes of the front millimeter-wave radar screw column 25 at the bottom of the upper cover 2 one by one, and then lock the screws in the four holes respectively, and the front millimeter-wave radar 5 is fixed and installed.

[0036] Then place the left millimeter-wave radar 6 on the rib 22 on the left side of the upper cover 2. After it is in place, the screws are locked into the millimeter-wave PCBA board pressure plate groove 27 on the left side, and the screw cap edge presses the edge of the PCBA board to fix the millimeter-wave PCBA board; there are also ribs 22 and pressure plate grooves on the right side of the upper cover 2. The right millimeter-wave radar 7 is installed on the right side of the upper cover 2, and the installation and fixing method is the same as that of the left millimeter-wave radar 6.

[0037] Then, the board screw column 41 on the internal bracket 4 is placed into the upper cover 2 with the board screw column 41 facing outward, and placed on the internal bracket screw column 23 at the bottom of the upper cover 2. The limit block 43 of the internal bracket 4 can quickly align the screw hole of the internal bracket 4 with the inner hole of the internal bracket screw column 23, and then the screws are locked in the four screw holes to complete the installation and fixation of the internal bracket 4.

[0038] Afterwards, the front millimeter-wave radar 5, the left and right millimeter-wave radar boards and the main PCBA board 3 are electrically connected, and the main PCBA board 3 is installed and fixed to the internal bracket 4. During installation, first, the plugs of the front millimeter-wave radar 5, the left millimeter-wave radar 6 and the right millimeter-wave radar 7 are correspondingly inserted into the sockets of the main PCBA board 3 one by one to complete the electrical connection; then the main PCBA board 3 is placed on the board screw column 41 of the internal bracket 4, and the screws are locked to complete the fixation of the main PCBA board 3.

[0039] Next, tear off the release paper of the waterproof breathable membrane 101, align the center of the side with adhesive with the center of the air hole 12 on the bottom cover 1 and stick it on, press it tightly, and then apply glue around the waterproof breathable membrane 101 to further strengthen the seal and enhance the waterproof effect; and the section of the wiring harness 9 with the plug is inserted into the outlet hole 14 of the bottom cover 1, and the wiring harness 9 is rotated to make the wiring harness 9 and the bottom cover 1 fit well, and then glue is applied in the outlet hole 14 to further fix the wiring harness 9 and seal it to achieve a waterproof state, and the waterproof rubber ring 8 is placed in the waterproof rubber ring groove 13 of the bottom cover 1, flattened, and pressed to the bottom to complete the installation.

[0040] Finally, connect the upper cover 2 and the bottom cover 1. When connecting, first connect the wiring harness 9 and the main PCBA board 3 by connecting the connectors. The upper cover 2 and the bottom cover 1 are closed according to the direction of the upper cover arrow mark 26 and the bottom cover arrow mark 16, and the anti-fool rib 21 of the upper cover 2 is matched with the anti-fool groove 11 of the bottom cover 1 to ensure that the installation direction is correct. After closing, press it tightly, and then lock the screws into the eight screw holes of the bottom cover 1 one by one, and the installation of the upper cover 2 group and the bottom cover 1 group is completed. After locking, the pressure strip 24 of the upper cover 2 tightly presses the waterproof rubber ring 8 installed on the bottom cover 1, which plays an overall sealing and waterproof role. Then tear off the release paper of the foam pad 10, align the adhesive side with the bottom cover 1, pass the center hole through the wiring harness 9, align the waterproof and breathable groove on the foam pad 10 with the breathable hole 12 of the bottom cover 1, align the four screw hole gaps on the foam pad 10 with the four radar fixing screw holes 17 on the bottom cover 1, and stick the foam pad 10. At this point, all installation is completed.

[0041] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention.

Claims

1. A large-angle millimeter-wave radar for automobiles, characterized in that: The radar is composed of a front millimeter wave radar (5) located in the middle and a left millimeter wave radar (6) and a right millimeter wave radar (7) located on both sides. The left millimeter wave radar (6) and the right millimeter wave radar (7) are symmetrically distributed about the center line of the front millimeter wave radar (5). The front millimeter wave radar (5) faces the front of the radar body, and the detection direction is 90 degrees with the horizontal axis of the radar body, so as to cover most of the entire detection area of ​​the radar, and the detection range is larger than that of the left millimeter wave radar (6) and the right millimeter wave radar (7); The left millimeter wave radar (6) detects toward the left front, and the detection direction is 15-40 degrees with the horizontal axis of the radar body, while the right millimeter wave radar (7) detects toward the right front, and the detection direction is 15-40 degrees with the horizontal axis of the radar body, which is used to cover a small part of the entire detection area of ​​the radar.

2. The automotive wide-angle millimeter-wave radar according to claim 1, characterized in that: The operating frequency of the front millimeter wave radar (5) is 77G, and the horizontal detection angle is 80-150 degrees; the operating frequency of the left millimeter wave radar (6) and the right millimeter wave radar (7) is 24G, and the horizontal probe angle is 30-120 degrees.

3. The automotive wide-angle millimeter-wave radar according to claim 1, characterized in that: The invention also comprises a bottom cover (1), an upper cover (2) is installed on the top of the bottom cover (1), an internal bracket (4) is arranged inside the upper cover (2), a main PCBA board (3) is connected to the surface of the internal bracket (4), a radar is arranged on the top of the internal bracket (4), a foam pad (10) with a waterproof and breathable groove is pasted on the bottom end of the bottom cover (1), a wiring harness (9) is arranged below the bottom cover (1), and the top end of the wiring harness (9) passes through the foam pad (10) and the bottom cover (1) in sequence and is plugged into the main PCBA board (3).

4. The automotive wide-angle millimeter-wave radar according to claim 3, characterized in that: The surface of the bottom cover (1) is provided with ventilation holes (12) for air convection and wire outlet holes (14) for the wire harness (9) to pass through. A waterproof breathable film (101) is affixed to the inner surface of the bottom cover (1) at the location of the ventilation holes (12). The waterproof breathable film (101) completely covers the ventilation holes (12). The surface of the bottom cover (1) is provided with a waterproof rubber ring groove (13) at the outer side of the wire outlet hole (14). A waterproof rubber ring (8) is placed inside the waterproof rubber ring groove (13). The waterproof rubber ring (8) can achieve a waterproof sealing effect when the bottom cover (1) and the upper cover (2) are locked.

5. The automotive wide-angle millimeter-wave radar according to claim 3, characterized in that: The left and right ends of the bottom cover (1) surface are both provided with bottom cover arrow marks (16), the bottom cover (1) surface and both sides of the bottom cover arrow marks (16) are both provided with radar fixing screw holes (17), eight bottom cover screw holes (15) are provided at the edge of the bottom cover (1) surface, and both ends of one side of the bottom cover (1) are provided with anti-mistake grooves (11).

6. The automotive wide-angle millimeter-wave radar according to claim 3, characterized in that: The surface of one side of the upper cover (2) is integrally injection-molded with an anti-foolproof rib (21), and the anti-foolproof rib (21) cooperates with the anti-foolproof groove (11) to form an anti-foolproof function; the surface of the upper cover (2) is integrally injection-molded with four groups of slat ribs (22), and the slat ribs (22) are used to receive the left millimeter-wave radar (6) and the right millimeter-wave radar (7), so that the left millimeter-wave radar (6) and the right millimeter-wave radar (7) are kept at a predetermined height from the inner wall of the upper cover (2); and a millimeter-wave PCBA plate pressing plate groove (27) is installed on the surface of the upper cover (2) and on one side of the slat rib (22).

7. The automotive wide-angle millimeter-wave radar according to claim 3, characterized in that: Two internal bracket screw columns (23) are respectively arranged on both sides of the surface of the upper cover (2), and the internal bracket screw columns (23) are used to receive the internal bracket (4); four front millimeter wave radar screw columns (25) are arranged at the central part of the surface of the upper cover (2), and the front millimeter wave radar screw columns (25) are used to receive the front millimeter wave radar (5), so that the front millimeter wave radar (5) is kept at a predetermined height from the inner wall of the upper cover (2), and the front millimeter wave radar (5) can be fixed by screws; radar fixing screw grooves (29) are all arranged at the corner positions of the surface of the upper cover (2).

8. The automotive wide-angle millimeter-wave radar according to claim 5, characterized in that: The surface of the upper cover (2) is also provided with eight bottom cover fixing screw columns (28), which cooperate with the bottom cover screw holes (15) and can screw the bottom cover (1) and the upper cover (2) together; the surface of the upper cover (2) is integrally injection-molded with a pressure strip (24), and when the bottom cover fixing screw columns (28) cooperate with the bottom cover screw holes (15) and the bottom cover (1) and the upper cover (2) are fixed together with the pressure strip (24), the pressure strip (24) will press the waterproof rubber ring (8) to achieve sealing and waterproofing; one side of the surface of the upper cover (2) is provided with an upper cover arrow mark (26), which corresponds to the bottom cover arrow mark (16), so that the bottom cover (1) and the upper cover (2) can be more accurately and conveniently installed when they are covered.

9. The automotive wide-angle millimeter-wave radar according to claim 7, characterized in that: Both sides of the surface of the internal bracket (4) are integrally injection-molded with slatted screw columns (41), and the main PCBA board (3) is placed on the slatted screw columns (41), and the slatted screw columns (41) are used to lock and fix the main PCBA board (3) through screws; four bracket screw holes (42) are also provided on both sides of the surface of the internal bracket (4), and the bracket screw holes (42) cooperate with the internal bracket screw columns (23) and can lock and fix the internal bracket (4) through screws; both sides of the bracket screw holes (42) are integrally injection-molded with limit blocks (43), and the limit blocks (43) can limit the movement range of the internal bracket (4), thereby facilitating the installation and fixing of the internal bracket (4).

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