Vehicle-mounted millimeter wave radar and vehicle

Abstract

The utility model relates to the technical field of vehicle-mounted radars, and provides a vehicle-mounted millimeter-wave radar and a vehicle, and the vehicle-mounted millimeter-wave radar comprises a front housing, a rear housing, a circuit board assembly disposed in a space enclosed by the front housing and the rear housing, and a connector which is electrically connected with the circuit board assembly, extends out of the front housing and the rear housing, and is electrically connected with the outside. A plurality of positioning holes are correspondingly formed in the circuit board assembly, the circuit board assembly is pressed and fixed on the rear shell through the matching of the positioning columns and the positioning holes, and a clamping structure which can be pressed and fixed is arranged between the front shell and the rear shell. According to the application, the positioning columns and the positioning holes are arranged between the circuit board assembly and the rear shell, the circuit board assembly and the rear shell can be fixed through press fit, meanwhile, a clamping structure is also arranged between the front shell and the rear shell, and the front shell and the rear shell can also be fixed through press fit. Through the above structure, the front shell, the circuit board assembly and the rear shell can be fixed through press fit instead of screws, automatic assembly can be completely realized, the production efficiency is high, and the cost is low.

Description

Technical Field

[0001] The present application belongs to the field of vehicle-mounted radar technology and relates to a vehicle-mounted millimeter-wave radar device and a vehicle. Background Art

[0002] At present, medium-range automotive millimeter-wave radars are mainly installed on the roof of cars. They have micro-motion detection and liveness detection functions. They are mainly used for blind spot detection (BSD), forward collision warning (FCW), lane change assist (LCA), rear cross traffic alert (RCTA), and door opening warning (DOW), to assist motor vehicles in completing obstacle avoidance functions.

[0003] However, existing millimeter-wave radars are too complex in design and structure, high in cost, inconvenient in production and assembly, and difficult to achieve fully automated production. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a vehicle-mounted millimeter-wave radar and a vehicle, aiming to solve the technical problems in the prior art that the vehicle-mounted millimeter-wave radar has a complex structure, is inconvenient to assemble, and cannot achieve fully automated production.

[0005] To achieve the above-mentioned purpose, the technical solution adopted in the embodiment of the present application is: to provide a vehicle-mounted millimeter-wave radar, including a front shell, a rear shell, a circuit board assembly arranged in the space enclosed by the front shell and the rear shell, and a connector electrically connected to the circuit board assembly and extending from the front shell and the rear shell to be electrically connected to the outside, a plurality of positioning posts are arranged in the rear shell, and a plurality of positioning holes are correspondingly arranged on the circuit board assembly, the circuit board assembly is fixed to the rear shell by the cooperation and pressing of the positioning posts and the positioning holes, and a clamping structure that can be pressed and fixed is provided between the front shell and the rear shell.

[0006] Furthermore, the cross-section of the rear shell is rectangular, there are two positioning columns, which are arranged diagonally, and the two positioning columns have supporting surfaces for supporting the circuit board assembly. Two supporting columns are arranged at the other diagonal position of the rear shell, and the circuit board assembly is placed on the supporting surface and the two supporting columns.

[0007] Furthermore, the snap-fit ​​structure includes a plurality of snaps arranged on the outer side wall of the rear shell, and four snap blocks extending from the edge of the front shell, and each of the snap blocks is provided with a snap hole for the snaps to be inserted into.

[0008] Furthermore, a guide groove is provided on the outer side wall of the rear shell, and each of the buckles is respectively arranged in the guide groove, and the clamping block slides along the guide groove so that the buckle is clamped into the clamping hole.

[0009] Furthermore, the clamping structure also includes a plurality of positioning blocks arranged on the side wall of the rear shell facing the surface of the front shell, and positioning grooves arranged on the corresponding surface of the front shell for the plurality of positioning blocks to be clamped into.

[0010] Furthermore, the outer wall of the rear shell is recessed inwardly to form a boss protruding from the inner wall of the rear shell, and the circuit board assembly includes a circuit board and electronic components arranged on the circuit board, and the electronic components abut against the boss.

[0011] Furthermore, a thermally conductive gel is provided between the electronic component and the boss.

[0012] Furthermore, a depression is formed on the outer wall of the rear shell corresponding to the boss and has heat dissipation ribs arranged therein.

[0013] Furthermore, a notch is provided at one side wall of the rear shell, the connector is arranged in the rear shell, and the interface end of the connector is exposed at the notch.

[0014] The present application also provides a vehicle, including a movable body, and the top of the body is also provided with the above-mentioned vehicle-mounted millimeter-wave radar.

[0015] In the present application, a positioning column and a positioning hole are provided between the circuit board assembly and the rear shell, and the two can be fixed by pressing. At the same time, a clamping structure is also provided between the front shell and the rear shell, and the front shell and the rear shell can also be fixed by pressing. Through the above structure, the front shell, the circuit board assembly and the rear shell can all be fixed by pressing, and screws are no longer used for fixing, which can fully realize automatic assembly, high production efficiency and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 A schematic diagram of the structure of a vehicle-mounted millimeter-wave radar provided in an embodiment of the present application;

[0018] Figure 2 An exploded view of the vehicle-mounted millimeter-wave radar provided in an embodiment of the present application viewed from another angle;

[0019] Figure 3 An exploded diagram of a vehicle-mounted millimeter-wave radar provided in an embodiment of the present application;

[0020] Figure 4 An exploded view of the vehicle-mounted millimeter-wave radar provided in an embodiment of the present application viewed from another angle;

[0021] Among them, the reference numerals in the figure are:

[0022] 10-comb body; 11-card block; 111-card hole;

[0023] 20-rear shell; 21-positioning column; 211-support surface; 22-support column; 23-clip; 24-guide groove; 25-positioning block; 26-boss; 27-recess; 28-heat dissipation rib; 29-notch;

[0024] 30-circuit board assembly; 31-positioning hole; 32-circuit board; 33-electronic component;

[0025] 40-connector;

[0026] 50-Thermal conductive gel. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0028] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0029] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" means two or more, and "several" means one or more, unless otherwise clearly and specifically defined.

[0031] Reference Figures 1 to 4The vehicle-mounted millimeter-wave radar provided in the embodiment of the present application includes a front shell 10, a rear shell 20, a circuit board assembly 30 disposed in the space enclosed by the front shell 10 and the rear shell 20, and a connector 40. The connector 40 is electrically connected to the circuit board assembly 30, and extends from the front shell 10 and the rear shell 20 to achieve electrical connection with an external vehicle. A plurality of positioning posts 21 are provided in the rear shell 20, and a plurality of positioning holes 31 are correspondingly provided on the circuit board assembly 30. The circuit board assembly 30 is fixed to the rear shell 20 by the cooperation and pressing of the positioning posts 21 and the positioning holes 31, and a clamping structure that can be pressed and fixed is provided between the front shell 10 and the rear shell 20.

[0032] In this embodiment, a positioning column 21 and a positioning hole 31 are provided between the circuit board assembly 30 and the rear shell 20, and the two can be fixed by pressing. At the same time, a clamping structure is also provided between the front shell 10 and the rear shell 20, and the front shell 10 and the rear shell 20 can also be fixed by pressing. Through the above structure, the front shell 10, the circuit board assembly 30 and the rear shell 20 can all be fixed by pressing, and screws are no longer used for fixing, which can fully realize automatic assembly, high production efficiency and low cost.

[0033] Specifically, in this embodiment, the rear shell 20 is in a cubic shape as a whole, and its cross-section is a rectangle. There are two positioning columns 21, which are diagonally arranged in the rear shell 20. The positioning columns 21 have a support surface 211, and two support columns 22 are arranged at the other diagonal position of the rear shell 20. The surface of the support column 22 is flush with the support surface 211 of the positioning column 21, and the circuit board assembly 30 is placed on the support surface 211 of the two positioning columns 21 and the surface of the support column 22 to achieve stable support.

[0034] The clamping structure between the front shell 10 and the rear shell 20 is specifically as follows:

[0035] A plurality of buckles 23 are provided on the outer wall of the rear shell 20, four of which are shown in the figure of this embodiment. The four buckles 23 are located at the four corners of the rear shell 20, and four clamping blocks 11 extend from the corresponding positions of the edge of the front shell 10, and each clamping block 11 is provided with a clamping hole 111 for the buckle 23 to be clamped into.

[0036] Furthermore, a guide groove 24 is provided on the outer wall of the rear shell 20, and each buckle 23 is respectively provided in the guide groove 24. By providing the guide groove 24, it is convenient for the card block 11 to slide along the guide groove 24, and it is also convenient for the buckle 23 to be inserted into the card hole 111. These detailed designs can realize a fully automated pressing process. Moreover, the card block 11 is set as a protruding structure and is inserted into the guide groove 24, so that the front shell 10 is more tightly held with the rear shell 20.

[0037] In order to further enhance the connection between the front shell 10 and the rear shell 20, the snap-fit ​​structure further includes a plurality of positioning blocks 25 disposed on the surface of the side wall of the rear shell 20 facing the front shell 10, and a positioning groove 12 disposed on the corresponding surface of the front shell 10 for the plurality of positioning blocks 25 to be snapped into. There are five positioning blocks 25, one of which is disposed in the middle of each of the three side walls of the front shell 10, and two positioning blocks 25 are disposed on the other side wall, i.e., where the connector 40 is disposed, so that the front shell 10 and the rear shell 20 can be quickly positioned and snap-fitted in the circumferential direction.

[0038] In this embodiment, the outer wall of the rear shell 20 is recessed inward to form a boss 26 protruding from the inner wall of the rear shell 20, and the circuit board assembly 30 abuts against the boss 26. In this way, the boss 26 also plays a supporting and abutting role for the circuit board assembly 30.

[0039] Furthermore, the circuit board assembly 30 includes a circuit board 32 and an electronic component 33 disposed on the circuit board 32, and the electronic component 33 abuts against the boss 26. A thermal conductive gel 50 is disposed between the electronic component 33 and the boss 26. In this way, the heat generated by the electronic component 33 is quickly transferred to the rear housing 20 through the thermal conductive gel 50, and is dissipated through the rear housing 20, thereby achieving rapid heat dissipation. At the same time, the thermal conductive gel 50 is also sticky, and can also make the electronic component 33 stick to the boss 26 better.

[0040] Furthermore, a heat dissipation rib 28 is provided in a recess 27 formed on the outer wall of the rear housing 20 corresponding to the boss 26. By providing the heat dissipation rib 28, the heat dissipation area is increased and the heat dissipation speed is accelerated.

[0041] In this embodiment, the connector 40 electrically connected to the circuit board 32 is a window for the vehicle-mounted millimeter-wave radar to connect to the outside world. A notch 29 is provided at one side wall of the rear shell 20, and the connector 40 is provided inside the rear shell 20, and the interface end of the connector 40 is exposed at the notch 29. The two positioning blocks 25 are respectively provided on both sides of the notch 29, and two positioning grooves 12 are also provided on the front shell 10. By providing a positioning card connection structure of a group of positioning blocks 25 and positioning grooves 12 on both sides of the notch 29, the connection strength of the card connection is also enhanced, and it is also adapted to the plug-in connection between the connector 40 and the outside.

[0042] An embodiment of the present application also provides a vehicle, including a movable body, on the top of which the above-mentioned vehicle-mounted millimeter-wave radar is provided.

[0043] In summary, in the embodiments of the present application, multiple clip-on structures are provided on the vehicle-mounted millimeter-wave radar to realize the assembly between the rear shell 20 and the circuit board assembly 30, and the rear shell 20 and the front shell 10. These clip-on structures do not require screws and can adopt a rapid pressing process to realize fully automatic assembly, thereby greatly improving production efficiency and reducing production costs.

[0044] The above description is only a specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application.

Claims

1. A vehicle-mounted millimeter-wave radar, comprising a front shell, a rear shell, a circuit board assembly disposed in a space enclosed by the front shell and the rear shell, and a connector electrically connected to the circuit board assembly and extending from the front shell and the rear shell to be electrically connected to the outside, characterized in that: A plurality of positioning posts are arranged in the rear shell, and a plurality of positioning holes are correspondingly arranged on the circuit board assembly. The circuit board assembly is fixed to the rear shell by pressing the positioning posts and the positioning holes together, and a clamping structure that can be pressed and fixed is arranged between the front shell and the rear shell.

2. The vehicle-mounted millimeter-wave radar according to claim 1, characterized in that: The cross-section of the rear shell is rectangular, there are two positioning columns, which are arranged diagonally, and the two positioning columns have supporting surfaces for supporting the circuit board assembly. Two supporting columns are arranged at the other diagonal position of the rear shell, and the circuit board assembly is placed on the supporting surface and the two supporting columns.

3. The vehicle-mounted millimeter-wave radar according to claim 1, characterized in that: The clamping structure comprises a plurality of buckles arranged on the outer side wall of the rear shell, and four clamping blocks extending from the edge of the front shell, and each of the clamping blocks is provided with a clamping hole for the buckle to be clamped into.

4. The vehicle-mounted millimeter wave radar according to claim 3, characterized in that: A guide groove is also provided on the outer side wall of the rear shell, and each of the buckles is respectively arranged in the guide groove, and the clamping block slides along the guide groove so that the buckle is clamped into the clamping hole.

5. The vehicle-mounted millimeter-wave radar according to any one of claims 1 to 4, characterized in that: The clamping structure further comprises a plurality of positioning blocks arranged on the side wall of the rear shell facing the surface of the front shell, and positioning grooves arranged on the corresponding surface of the front shell for the plurality of positioning blocks to be clamped into.

6. The vehicle-mounted millimeter-wave radar according to claim 1, characterized in that: The outer wall of the rear shell is recessed inwardly to form a boss protruding from the inner wall of the rear shell. The circuit board assembly includes a circuit board and an electronic component arranged on the circuit board, and the electronic component rests on the boss.

7. The vehicle-mounted millimeter wave radar according to claim 6, characterized in that: A heat-conducting gel is provided between the electronic component and the boss.

8. The vehicle-mounted millimeter wave radar according to claim 6, characterized in that: The outer wall of the rear shell forms a depression corresponding to the boss and has heat dissipation ribs arranged therein.

9. The vehicle-mounted millimeter wave radar according to claim 1, characterized in that: A notch is arranged at one side wall of the rear shell, the connector is arranged in the rear shell, and the interface end of the connector is exposed at the notch.

10. A vehicle, comprising a movable body, characterized in that: The top of the vehicle body is also provided with a vehicle-mounted millimeter-wave radar as described in any one of claims 1 to 9.

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