Vehicle-mounted radar and transportation tool

Abstract

The present application provides a vehicle-mounted radar and a means of transportation. The vehicle-mounted radar includes a circuit board and a first shell that carries the circuit board. The circuit board is fixed in the first shell, the second surface of the circuit board is provided with a first connector, and the first shell is provided with a second connector that is pluggable and connected to the first connector. The first surface of the circuit board is provided with an antenna circuit. By adopting a first connector disposed on the surface opposite to the antenna circuit (the second surface), the first connector is connected to the circuit board through the circuit disposed on the second surface, so that the connection point between the first connector and the circuit board and the antenna circuit are located on two different surfaces, so the connection point between the first connector and the circuit board will not interfere with the antenna circuit, and there is no need to reserve an additional avoidance area on the circuit board, which facilitates the miniaturization of the vehicle-mounted radar. At the same time, the first surface reduces the devices that interfere with the antenna circuit, thereby improving the detection performance of the vehicle-mounted radar.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a vehicle-mounted radar and a vehicle. Background Art

[0002] The existing vehicle-mounted radar is a relatively important device on the car, so the performance of the radar is very important. When the radar in the prior art is connected to the car, the external device of the radar is electrically connected to the internal device of the radar through an integrated connector. However, the wiring of the integrated connector needs to pass through the antenna plane of the vehicle-mounted radar and then be connected to the PCB board through pins, resulting in a large radiation area for the antenna. In order to avoid the influence of the wiring on the antenna, it is necessary to increase the avoidance distance of about 5mm when designing the PCB board, which is not conducive to the design architecture of the subsequent miniaturized vehicle-mounted radar products. Summary of the invention

[0003] The present application provides a vehicle-mounted radar and a vehicle, which are used to improve the detection effect of the vehicle-mounted radar and facilitate the miniaturization development of the vehicle-mounted radar.

[0004] The present application provides a vehicle-mounted radar, which is applied to a vehicle and is used to detect the external environment of the vehicle. The vehicle-mounted radar mainly includes a circuit board and a first shell that carries the circuit board. During assembly, the circuit board is fixed in the first shell, the second surface of the circuit board is provided with a first connector, the first shell is provided with a second connector that is pluggable and connected to the first connector, and the connection between the circuit board and the external circuit is realized through the first connector and the second connector. The first surface of the circuit board is provided with an antenna circuit, and the first surface is the surface opposite to the second surface. The antenna circuit is used to realize the detection function of the vehicle-mounted radar, so its performance is very important. By adopting a first connector to be arranged on the surface (second surface) opposite to the antenna circuit on the circuit board, and the first connector and the circuit board are connected on the second surface, the connection point between the first connector and the circuit board and the antenna circuit are located on two different surfaces, and the connection point between the first connector and the circuit board will not interfere with the antenna circuit, so there is no need to reserve an additional avoidance area on the circuit board, which is convenient for the miniaturization development of the vehicle-mounted radar. At the same time, the first surface reduces the devices that interfere with the antenna circuit, and improves the detection performance of the vehicle-mounted radar.

[0005] In a specific implementation scheme, the first connector and the second connector are connected in a floating manner to prevent external devices from affecting the connection effect between the circuit board and the first housing.

[0006] In a specific implementation scheme, the first connector includes a plurality of connection slots; the second connector includes a plurality of connection terminals; the plurality of connection terminals are connected to the plurality of connection slots in a floating manner corresponding to each other. Through the floating connection between the first connector and the second connector, the stress generated during assembly of the circuit board can be reduced to affect the stability of the connector connection. The stability of the electrical connection between the circuit board and the first housing is also improved.

[0007] In a specific implementation scheme, the floating direction of the first connector and the second connector when connected is along the assembly direction of the circuit board into the first housing, thereby reducing the influence of assembly stress on the connection between the connectors.

[0008] In a specific possible implementation scheme, the opening direction of each connection slot faces the first surface, so as to facilitate the connection between the first connector and the second connector when assembling the circuit board.

[0009] In a specific embodiment, each connection terminal has a blade-shaped first connection end; each connection slot has a pair of elastic pieces, and the pair of elastic pieces are used for floating connection with the corresponding first connection end. The blade-shaped first connection end ensures that when the first connector and the second connector float relative to each other, there is still a reliable electrical connection.

[0010] In a specific embodiment, the pair of elastic sheets are provided with barb structures, and the barb structures increase the stability of the elastic sheets when connected to the first connector.

[0011] In a specific possible implementation, the first connector is provided with a positioning pin that cooperates with the circuit board, so as to facilitate the alignment connection between the first connector and the circuit board.

[0012] In a specific embodiment, the first connection end of each connection terminal has a redundant area, and the redundant area is used to increase the contact area with the corresponding elastic sheet. The redundant area increases the contact area with the elastic sheet, thereby improving the stability of the connection between the connectors during floating connection.

[0013] In a specific embodiment, each connection terminal has a second connection end electrically connected to an external device; among the plurality of connection terminals, the plurality of first connection ends are arranged in a single row, and the plurality of second connection ends are arranged in a single row or in two rows. Different arrangements of the second connection ends can be used to adapt to the connection of the external circuit.

[0014] In a specific implementation scheme, the second connector includes a second housing, the plurality of connection terminals are fixed to the second housing, and the second housing is fixedly connected to the first housing. The second housing fixes the plurality of connection terminals, thereby ensuring the integrity of the second connector.

[0015] In a specific implementation scheme, the second housing and the first housing are an integral structure. The second connector is directly formed on the first housing, which simplifies the structure of the vehicle-mounted radar.

[0016] In a specific implementation scheme, a cavity for accommodating the circuit board is provided in the first housing, and a step structure for supporting the circuit board is provided on a side wall of the cavity, thereby improving the stability of the circuit board.

[0017] In a specific possible implementation method, a vibration reduction layer is provided between the step structure and the circuit board, thereby reducing the influence of external vibration on the circuit board.

[0018] In a specific possible implementation manner, a positioning column cooperating with the circuit board is disposed in the cavity, thereby improving the accuracy of circuit board assembly.

[0019] In a specific implementation method, the second connector extends into the housing, and the circuit board is provided with a notch to avoid the second connector. The size of the circuit board is further reduced, which facilitates the miniaturization of the vehicle-mounted radar.

[0020] In the second aspect, a means of transport is provided, which may be different types of vehicles, such as gasoline-driven cars, trains, buses, etc., or different types of new energy vehicles driven by electric energy. The means of transport includes an information processing module, and a vehicle-mounted radar as described in any of the above items; wherein the information processing module is provided with a third connector that is pluggable and connected to the second connector. By using a first connector disposed on the surface (second surface) opposite to the antenna circuit on the circuit board, and the first connector and the circuit board are connected to the circuit on the second surface, the connection point between the first connector and the circuit board and the antenna circuit are located on two different surfaces, and the connection point between the first connector and the circuit board will not interfere with the antenna circuit, so there is no need to reserve an additional avoidance area on the circuit board, which facilitates the miniaturization of the vehicle-mounted radar. At the same time, the first surface reduces the devices that interfere with the antenna circuit, thereby improving the detection performance of the vehicle-mounted radar. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of an application scenario of a vehicle-mounted radar provided in an embodiment of the present application;

[0022] Figure 2 An exploded schematic diagram of a vehicle-mounted radar provided in an embodiment of the present application;

[0023] Figure 3 A schematic diagram of the structure of the first surface of the circuit board provided in an embodiment of the present application;

[0024] Figure 4A schematic diagram of the structure of the second surface of the circuit board provided in an embodiment of the present application;

[0025] Figure 5 and Figure 6 A schematic diagram comparing a circuit board used in an embodiment of the present application with a circuit board in the prior art;

[0026] Figure 7 A structural diagram of a first connector provided in an embodiment of the present application;

[0027] Figure 8 An exploded schematic diagram of a first connector provided in an embodiment of the present application;

[0028] Fig. 9 A schematic diagram of the structure of the elastic terminal provided in an embodiment of the present application;

[0029] Fig.10 A schematic diagram of the structure of the first shell provided in an embodiment of the present application;

[0030] Fig.11 A schematic diagram of the structure of a second connector provided in an embodiment of the present application;

[0031] Fig.12 Another structural schematic diagram of the second connector provided in an embodiment of the present application;

[0032] Fig.13 Another structural schematic diagram of the second connector provided in an embodiment of the present application;

[0033] Fig.14 Another structural schematic diagram of the second connector provided in an embodiment of the present application;

[0034] Fig.15 A block diagram of the connection between the information processor and the vehicle-mounted radar in a vehicle provided in an embodiment of the present application. DETAILED DESCRIPTION

[0035] The vehicle-mounted radar provided in the embodiment of the present application is the abbreviation of the detection radar used in the vehicle, including but not limited to millimeter wave radar, laser radar, etc. To facilitate the understanding of the vehicle-mounted radar, its application scenario is first explained below.

[0036] The vehicle-mounted radar is applied to vehicles, including but not limited to vehicles driven by non-renewable energy or new energy, wherein vehicles driven by non-renewable energy can include cars, buses, trucks, etc. driven by gasoline, diesel, ethanol and other fuels. Vehicles driven by new energy can include cars, buses, trucks, etc. driven by electric energy.

[0037] The vehicle-mounted radar is used to detect the surrounding environment of the vehicle and feed the detected data back to the vehicle's central control computer to provide the central control computer with data for judgment information. Figure 1 The schematic diagram of the vehicle-mounted radar when it is installed in the car is shown. Figure 1 The dotted line in the figure indicates the data interaction between the vehicle-mounted radar 100 and the central control computer 200, and does not represent the actual connection cable between the vehicle-mounted radar 100 and the central control computer 200. During the driving of the car, the vehicle-mounted radar 100 can detect the external environment in its detection area and feed back the detected information to the central control computer 200, and the central control computer 200 makes a judgment based on the detection data of the vehicle-mounted radar 100. Taking collision prevention as an example, when someone is driving, when the detection radar 100 detects an obstacle, it will send the information of the obstacle to the central control computer 200, and the central control computer 200 will make a judgment based on the detected obstacle information and send a warning message to the driver, such as reminding that there are obstacles in front or behind, prompting the driver to avoid obstacles, etc. When the car is automatic driving, the central control computer 200 can plan the driving route of the car based on the detection data of the vehicle-mounted radar 100. It can be seen from the above description that the vehicle-mounted radar 100 is a relatively important device on the vehicle, and its performance directly affects the safety of the vehicle. For this reason, the embodiment of the present application provides a vehicle-mounted radar 100. The vehicle-mounted radar is described in detail below with reference to specific drawings and embodiments.

[0038] Figure 2 The exploded schematic diagram of the vehicle-mounted radar provided by the embodiment of the present application is shown. The main structure of the vehicle-mounted radar may include a first shell 10 and a circuit board 20, wherein the first shell 10 serves as the bearing structure of the entire vehicle-mounted radar, and the circuit board 20 is used to realize the detection function of the vehicle-mounted radar. The circuit board 20 has an antenna circuit for detecting the external environment, and a first connector 40 connected to the antenna circuit. The first shell 10 is provided with a second connector 30 that is pluggable and connected to the first connector 40. Figure 2 As shown in the direction a, when the circuit board 20 is assembled in the first shell 10, the first connector 40 and the second connector 30 are electrically connected. The second connector 30 is used as a connector for connecting the entire vehicle-mounted radar to the outside, one end of which is connected to the first connector 40, and the other end can be used as an electrical connection port between the vehicle-mounted radar and the vehicle when the vehicle-mounted radar is assembled to the vehicle. It can be seen from the above description that when the first connector 40 and the second connector 30 are used, the assembly of the vehicle-mounted radar can be facilitated. When the circuit board 20 is placed in the first shell 10, the electrical connection between the circuit board 20 and the first shell 10 can be achieved through the cooperation of the first connector 40 and the second connector 30.

[0039] In an optional solution, the connection between the first connector 40 and the second connector 30 is a floating connection. The first connector 40 and the second connector 30 can float within a certain range, and when floating, the first connector 40 and the second connector 30 can still be reliably electrically connected. For example, Figure 2 In the direction a shown in the figure, the floating direction of the first connector 40 and the second connector 30 when connected is along the assembly direction of the circuit board 20 into the first housing 10. When a floating connection is adopted, the production process window of each component can be increased, and when there are production errors in each component or assembly errors between each component, the reliability of the vehicle-mounted radar after assembly can still be guaranteed. In addition, when the first connector 40 and the second connector 30 are connected in a floating manner, the stress generated by the circuit board 20 during assembly is applied to the first connector 40, which affects the assembly of the first connector 40 and the second connector 30. When the vehicle-mounted radar is in use, when external vibration affects the vehicle-mounted radar, the reliability of the vehicle-mounted radar can still be guaranteed through the floating connection of the first connector 40 and the second connector 30.

[0040] In an optional solution, the first connector 40 may be a male connector, and the second connector 30 may be a female connector; or, the first connector 40 is a female connector, and the second connector 30 is a male connector.

[0041] Figure 3 The specific structural schematic diagram of the circuit board 20 is shown. The circuit board 20 includes a first surface 24, and the first surface 24 is provided with a circuit layer. The circuit layer includes an antenna circuit 23. The antenna circuit 23 is used to transmit and receive the detected signal. The shape of the antenna circuit 23 can be determined according to actual needs, such as Figure 3 In a specific embodiment shown in , the antenna circuit 23 is arranged along the edge of the first surface 24, so that the antenna circuit 23 has a larger wiring, which enhances the radiation effect of the antenna circuit 23. Figure 2 When the circuit board 20 is assembled in the first housing along direction a, the first surface 24 faces the inside of the first housing.

[0042] In an optional solution, the specific structure of the antenna circuit is not limited in the present application. The antenna circuit may be a printed circuit, or a metal layer attached to the first surface, or a metal pattern formed on the first surface by a vapor deposition process. In actual preparation, different preparation methods may be used to form the antenna circuit, as long as the antenna function can be realized.

[0043] In an optional solution, the circuit board 20 may be a common printed circuit board 20, or a common circuit board 20 with a metal circuit pattern laid on the surface.

[0044] Figure 4The circuit board 20 includes a second surface 21, which is the surface opposite to the first surface. The second surface 21 also serves as a carrier for power devices (in Figure 4 The first connector 40 is disposed on the second surface 21 and is electrically connected to the circuit board 20 through the circuit disposed on the second surface 21. Since the second surface 21 itself is a surface for carrying power devices, the additional first connector 40 will not have a significant impact on the height of the circuit board 20.

[0045] In an optional solution, the circuit board is provided with a notch 22 to form a "concave" shape. The opening end of the first connector 40 (the insertion port of the second connector) can be set at the notch 22 position, so that the first connector 40 can be set closer to the antenna circuit. Compared with the circuit board adopting a regular rectangular shape, the first connector 40 is set outside the circuit board, thereby reducing the area of ​​the circuit board.

[0046] Combination Figure 3 and Figure 4 , the antenna circuit and the first connector 40 on the circuit board 20 are respectively arranged on two opposite surfaces of the circuit board 20, and the first connector 40 and the circuit board 20 are connected through the circuit on the second surface 21, so the first connector 40 does not need to pass through the circuit board 20, and no terminal is formed on the first surface. The connection point between the first connector 40 and the circuit board 20 and the antenna circuit are located on two different surfaces, so the connection point between the first connector 40 and the circuit board 20 will not interfere with the antenna circuit, and there is no need to reserve an additional avoidance area on the circuit board 20, which facilitates the miniaturization of vehicle-mounted radars. At the same time, the first surface reduces the devices that interfere with the antenna circuit and can also improve the detection performance of the vehicle-mounted radar.

[0047] To facilitate understanding of the difference in size between the circuit board provided in the embodiment of the present application and the circuit board in the prior art, Figure 5 and Figure 6 Provide explanation. Figure 5 The dimensions of the circuit board in this application are shown. Figure 6 The dimensions of the circuit board in the prior art are shown. For the convenience of description, a direction b is defined, and the direction b is parallel to the length direction of the circuit board.

[0048] Depend on Figure 5 It can be seen that when the antenna circuit 23 and the first connector 40 are arranged on two opposite surfaces, the size of the antenna circuit 23 can be set along the edge of the circuit, and the length L1 of the circuit board 20 in direction b is L2+L3, wherein L2 is the length of the first connector 40, and L3 is the length of the antenna circuit 23.

[0049] Depend on Figure 6It can be seen that when the connector terminal 4 is connected to the circuit board 1, the connector terminal 4 needs to pass through the antenna surface of the circuit board 1 (the surface where the antenna circuit 2 is arranged) before it can be connected to the circuit board 1. The connector terminal 4 forms a protrusion on the surface where the antenna circuit 2 is arranged. When the vehicle-mounted radar is working, the protrusion will interfere with the radiation of the antenna circuit 2. In order to avoid interfering with the antenna circuit 2, an avoidance area 3 with a width of L5 is arranged between the protrusion and the antenna circuit 2. An exemplary L5 can be about 5 mm. Figure 6 The length L4 of the circuit board 1 in direction b is L5+L3+L6; wherein L6 is the length of the connecting terminal in direction b.

[0050] contrast Figure 5 and Figure 6 It can be seen that the connector terminal 4 and the first connector 40 are devices with the same functions, so their sizes can be approximately equal, that is, the sizes of L2 and L6 are approximately equal. Figure 5 and Figure 6 From the dimensions in, we can get L4-L1=L5. It can be seen that the circuit board 20 provided in the embodiment of the present application adopts the first connector 40 as a device for connecting the circuit board 20 with the external circuit, thereby avoiding forming a connection point on the first surface of the circuit board 20, so there is no need to set the avoidance area (L5), thereby reducing the size of the circuit board.

[0051] Figure 7 The schematic diagram of the structure of the first connector is shown. For the convenience of description, a direction c is defined, and the direction c and the direction a are located in the same plane, and the direction a and the direction c are perpendicular to each other. The first connector 40 is a female connector, and the corresponding second connector is a male connector. The first connector 40 may include a plurality of connection slots 42, and the plurality of connection slots 42 are arranged in a single row along the direction a.

[0052] In an optional solution, the opening direction of each connecting slot 42 faces the first surface. Figure 2 From the assembly instructions of the circuit board and the first housing described in FIG, it can be seen that when the opening direction of each connection slot 42 faces the first surface, when the circuit board is inserted into the first housing, the connection slot 42 can be directly inserted into the connection terminal of the second connector. And the connection terminal and the connection slot 42 can be connected in a floating manner corresponding to each other, ensuring the stability of the first connector 40 and the second connector after assembly.

[0053] In another optional solution, the opening of each connection slot 42 may also face the connection terminal of the second connector. During assembly, the circuit board is inserted at an angle, the connection slot 42 is inserted onto the connection terminal, and then the circuit board is placed into the assembly position in the first shell.

[0054] For reference Figure 7 and Figure 8 , Figure 8 The first connector 40 includes an insulating housing 41, such as an insulating plastic body, an insulating plastic body, etc. A plurality of slots 422 are provided in the insulating housing 41. Figure 8 In the direction a, the plurality of slots 422 are arranged in a single row along the direction a, the slots 422 are open along the direction b, and the opening direction of the slots 422 is the opening direction of the connecting slots.

[0055] Each slot 422 can be used as part of a connection slot, such as Figure 7 As shown in , the connection slot also has an elastic terminal 421 corresponding to each slot 422, and each elastic terminal 421 is designed with an elastic contact (a pair of elastic sheets 4211) and a mounting and fixing seat 4212. When assembled with the slot 422, the mounting and fixing seat 4212 of the elastic terminal 421 is fixed to the slot 422 by an interference fit, or by a locking, bonding or other fixing scheme. A pair of elastic sheets 4211 is used for floating connection with the connection terminal of the second connector. The elastic terminal 421 also includes a pin connected to the elastic sheet 4211, which is used to electrically connect to the circuit on the circuit board, such as the pin is directly welded to the circuit board to achieve electrical connection between the elastic terminal 421 and the circuit board.

[0056] In an optional solution, the mounting base 4212 can be fixed in the slot 422 by bonding, welding or other different methods.

[0057] In an optional solution, the elastic terminal 421 may also include only a pair of elastic sheets 4211 , and the elastic sheets 4211 may be directly fixed in the slot 422 .

[0058] In an optional solution, the first connector 40 is also provided with a reinforcing pin 43, which is fixed to the insulating shell 41. When the first connector 40 is assembled to the circuit board, the reinforcing pin is pressed against the second surface of the circuit board to avoid stress on the pin connecting the elastic terminal 421 to the circuit board, thereby ensuring the connection effect between the elastic terminal 421 and the circuit board.

[0059] Continue to refer Figure 7 and Figure 8 The first connector 40 is provided with a positioning pin 412 that cooperates with the circuit board. The positioning pin 412 can cooperate with the positioning hole on the circuit board to position the first connector 40. Figure 8A specific positioning pin 412 arrangement method is shown in the figure, the positioning pin 412 is arranged on the insulating housing 41, and two positioning pins 412 are arranged on both sides of the opening of a row of connecting slots 42. However, the number of positioning pins 412 is not specifically limited in the present application, and at least two positioning pins 412 can be used to define the position of the first connector 40, such as the number of positioning pins 412 is two, three, four, etc.

[0060] Fig. 9 shows a schematic diagram of the structure of the elastic terminal, Fig. 9 Some of the numbers in the Figure 8 The same number as in . Fig. 9 In the embodiment, a pair of elastic sheets 4211 are provided with barb structures 4213, that is, the elastic terminal 421 also includes barb structures 4213. The barb structures 4213 are provided on a side of the fixed mounting seat 422 away from the elastic sheet 4211. When the elastic terminal 421 is assembled into the slot, the connection effect of the elastic terminal 421 can be enhanced by the cooperation between the provided barb structures 4213 and the slot, thereby improving the stability of the elastic terminal 421 after assembly.

[0061] Fig.10 The schematic diagram of the structure of the first housing provided by the embodiment of the present application is shown. The first housing 10 is provided with a cavity 11 corresponding to the circuit board, and a second connector 30 that cooperates with the first connector. In the figure, the shape of the cavity 11 matches the shape of the circuit board. Exemplarily, when the circuit board is rectangular, the cavity 11 is correspondingly rectangular; or when the circuit board is elliptical, circular or other shapes, the cavity 11 is correspondingly set to be elliptical, circular or other matching shapes.

[0062] In an optional solution, the side wall of the cavity 11 is provided with a step structure 13 for supporting the circuit board. Exemplarily, the four side walls of the cavity 11 are all provided with a step structure 13 for supporting the circuit board, and the step structure 13 has a step surface, and the step surfaces of each side wall have the same height. When the circuit board is placed in the cavity 11, the step surface supports the first surface of the circuit board, and stable support for the circuit board can be achieved. The present application does not specifically limit the setting method of the step structure 13, such as the step structure 13 can be provided on all or part of the side walls of the cavity 11: the step structure 13 is provided on two opposite side walls of the cavity 11, the step structure 13 is provided on two adjacent side walls of the cavity 11, the step structure 13 is provided on three side walls of the cavity 11, etc., as long as it can stably support the circuit board.

[0063] In an optional solution, a vibration-damping layer 14 may also be provided in the first shell 10, and the vibration-damping layer 14 is used to reduce the impact of external vibration on the circuit board. The vibration-damping layer 14 is provided at least on the step surface, and when the circuit board is fixed in the cavity 11, the vibration-damping layer 14 is located between the step structure 13 and the circuit board. When external vibration is transmitted to the first shell 10, the vibration-damping effect of the vibration-damping layer 14 can reduce the impact on the circuit board, ensure the stability of the circuit board, improve the working environment of the circuit board, and effectively improve the stability of the connection between the electronic devices on the circuit board and the circuit board.

[0064] The vibration-damping layer 14 may be made of a material with elastic properties, such as elastic rubber, rubber strips, or elastic plastics.

[0065] The vibration-damping layer 14 can be fixed to the step structure 13 by common fixing methods such as bonding and clamping. To improve the stability of the vibration-damping layer 14 and the step structure 13, as an optional solution, the vibration-damping layer 14 can extend to the side wall of the step structure 13 to facilitate the installation of the vibration-damping layer 14.

[0066] In an optional solution, a positioning column 15 that cooperates with the circuit board is provided in the cavity 11, such as Fig.10 As shown in , two positioning posts 15 are provided in the cavity 11, and the corresponding circuit board is provided with positioning holes that cooperate with the two positioning posts 15. When the circuit board is assembled, the accuracy of the circuit board during assembly is ensured by the cooperation between the positioning posts 15 and the positioning holes. It should be understood that the number of positioning posts 15 is not specifically limited in the embodiment of the present application, and at least two positioning posts 15 can be used to align the circuit board. Exemplarily, the number of positioning posts 15 can be two, three, four, or other different numbers. The setting position of the positioning posts 15 is not specifically limited in the embodiment of the present application. That is, Fig.10 The positioning posts 15 shown in the figure are close to the same side wall, but the positioning posts 15 may be close to different side walls as long as the alignment of the circuit board is satisfied.

[0067] In an optional solution, in order to improve the stability of the positioning column 15, a positioning column reinforcement step 16 can be provided at the bottom of the positioning column 15, and the diameter of the positioning column reinforcement step 16 is larger than the diameter of the positioning column 15, so that the positioning column 15 forms a step structure 13 that is thick at the bottom and thin at the top, thereby ensuring the structural strength of the positioning column 15, reducing the bending of the positioning column 15 when it is matched with the circuit board, and improving the accuracy of the circuit board alignment. In an optional solution, the positioning column reinforcement step 16 can cooperate with the step structure 13 that supports the circuit board to support the circuit board to improve the stability of the circuit board.

[0068] Continue to refer Fig.10The first housing 10 is provided with a second connector 30, which is used to mate with the first connector and also serves as a connector for electrically connecting the entire vehicle-mounted radar with external devices. When the first connector is a female connector, the second connector 30 is a male connector.

[0069] The first housing 10 is provided with a connection end 12 for accommodating the second connector 30, and the second connector 30 can be fixed in the connection end 12. In an optional solution, the second connector 30 extends into the housing, and the circuit board is provided with a notch to avoid the second connector 30. This ensures that the first connector and the second connector 30 have a matching space when they are matched, and at the same time, the size of the circuit board can be reduced, which is convenient for the miniaturization of the vehicle-mounted radar.

[0070] The specific structure of the second connector 30 is described below in conjunction with the first connector described above. Fig.11 The second connector 30 shown includes a plurality of connection terminals 31, each of which includes a first connection end 311 and a second connection end 312, wherein the first connection end 311 is used to connect to the first connector, and the second connection end 312 is used as a connection end of an external connector of the vehicle-mounted radar. When mated with the first connector, the first connection ends 311 of the plurality of connection terminals 31 are arranged in a single row, and the arrangement direction is the same as the arrangement direction of the plurality of connection slots of the first connector, so that each connection terminal 31 is floatingly connected with the corresponding connection slot (specifically, a pair of elastic sheets in the connection slot) in a one-to-one correspondence.

[0071] In order to ensure that the first connection end 311 of the connecting terminal 31 is in reliable contact with the elastic contact of the first connector during floating connection, the first connection end 311 adopts a blade-type structure. This structure enables the first connection end 311 to have a certain width in direction a. Within the floating range of the connecting terminal 31 relative to the first connector, it can be ensured that the first connection end 311 is always in contact with the elastic contact, thereby improving the stability of the second connector 30 and the first connector during electrical connection.

[0072] As an optional solution, the plurality of second connection ends 312 may be arranged in a single row, or in two rows, or in other different ways. Fig.12 As shown, the second connection ends 312 are arranged in two rows to correspond to the arrangement of the slots in the connector that matches the vehicle-mounted radar. Fig.13 As shown, the second connection ends 312 are arranged in a single row to correspond to the arrangement of the slots in the connector that matches the vehicle-mounted radar.

[0073] As an optional solution, the second connector 30 further includes a second shell 32, which serves as a bearing structure for fixing a plurality of connection terminals. The second shell 32 wraps the middle portion of the connection terminal, and the first connection end 311 and the second connection end 312 are exposed outside the second shell 32. The second shell 32 fixes the plurality of connection terminals, thereby ensuring the integrity of the second connector 30. When assembled with the first shell, the second shell 32 is fixedly connected to the first shell, thereby fixing the second connector 30 in the first shell.

[0074] Of course, the connection method of the second connector provided in the embodiment of the present application is not limited to the above description. When the second connector 30 is assembled with the first shell, the connection terminal and the second shell 32 can be integrally injection molded, or the connection terminal and the first shell can be partially injection molded before assembly, or the connection terminal can be directly assembled with the first shell separately. In this case, the second shell 32 and the first shell are an integral structure, and the second connector 30 can be directly formed on the first shell, simplifying the structure of the vehicle-mounted radar.

[0075] Fig.14 Another second connector 30 is shown, in which the first connection end 311 of each connection terminal has a redundant area 3111, and the redundant area 3111 is used to increase the contact area with the corresponding elastic sheet. The redundant area 3111 increases the contact area between the connection terminal and the elastic sheet, thereby improving the stability of the connection between the two connectors during floating connection, and avoiding poor contact between the first connector and the second connector 30 during application.

[0076] The vehicle-mounted radar provided in the embodiment of the present application may also include other structures included in the vehicle-mounted radar in the prior art. After the first shell, the circuit board and the second connector are assembled, the side wall of the cavity of the first shell can be fixed to other structural parts of the vehicle-mounted radar through gluing, interference fit, ultrasound or other methods to complete the overall assembly of the radar.

[0077] The embodiment of the present application also provides a means of transport, which includes but is not limited to vehicles driven by non-renewable energy or new energy, wherein vehicles driven by non-renewable energy may include cars, buses, trucks, etc. driven by gasoline, diesel, ethanol and other fuels. Vehicles driven by new energy may include cars, buses, trucks, etc. driven by electric energy.

[0078] like Fig.15As shown, the vehicle includes an information processing module 300, and any of the above-mentioned vehicle-mounted radars 400; wherein the information processing module 300 is provided with a third connector 301 that is pluggable and connected to the second connector 401. wherein the information processing module 300 may be a hollow computer on the car or other chip with a signal processing function. by adopting a first connector disposed on the surface (second surface) opposite to the antenna circuit on the circuit board, and the first connector is connected to the antenna circuit through the internal circuit of the circuit board. the connection point between the first connector and the circuit board and the antenna circuit are located on two different surfaces, so the connection point between the first connector and the circuit board will not interfere with the antenna circuit, and no additional avoidance area is required on the circuit board, which facilitates the miniaturization of the vehicle-mounted radar 400. at the same time, the first surface reduces the devices that interfere with the antenna circuit, and improves the detection performance of the vehicle-mounted radar 400.

[0079] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A vehicle-mounted radar, characterized in that: include: A circuit board, wherein an antenna circuit is disposed on a first surface of the circuit board; and a first connector is disposed on a second surface of the circuit board; The first connector is connected to the circuit on the second surface of the circuit board to connect to the antenna circuit; wherein the first surface and the second surface are two opposite surfaces of the circuit board; The first housing is used to carry the circuit board, and the first housing is provided with a second connector which is pluggable and connectable with the first connector.

2. The vehicle-mounted radar according to claim 1, characterized in that: The first connector and the second connector are floatingly connected.

3. The vehicle-mounted radar according to claim 2, characterized in that: The first connector includes a plurality of connection slots; the second connector includes a plurality of connection terminals; The plurality of connection terminals are floatingly connected to the plurality of connection slots in a one-to-one correspondence.

4. The vehicle-mounted radar according to claim 3, characterized in that: The opening direction of each connecting slot faces the first surface.

5. The vehicle-mounted radar according to claim 3, characterized in that: Each connecting terminal has a blade-shaped first connecting end; Each connection slot has a pair of elastic sheets, and the pair of elastic sheets are used for floating connection with the corresponding first connection end.

6. The vehicle-mounted radar according to claim 5, characterized in that: The pair of elastic sheets are provided with barb structures.

7. The vehicle-mounted radar according to claim 5, characterized in that: The first connecting end of each connecting terminal has a redundant area, and the redundant area is used to increase the contact area with the corresponding elastic sheet.

8. The vehicle-mounted radar according to any one of claims 5 to 7, characterized in that: Each connection terminal has a second connection end electrically connected to an external device; Among the plurality of connection terminals, the plurality of first connection ends are arranged in a single row, and the plurality of second connection ends are arranged in a single row or in two rows.

9. The vehicle-mounted radar according to any one of claims 3 to 7, characterized in that: The second connector comprises a second housing, and the plurality of connection terminals are fixed to the second housing; The second shell is fixedly connected to the first shell.

10. The vehicle-mounted radar according to claim 9, characterized in that: The second shell and the first shell are an integral structure.

11. The vehicle-mounted radar according to claim 1, characterized in that: A cavity for accommodating the circuit board is disposed in the first shell, and a step structure for supporting the circuit board is disposed on a side wall of the cavity.

12. The vehicle-mounted radar according to claim 11, characterized in that: A vibration reduction layer is arranged between the step structure and the circuit board.

13. The vehicle-mounted radar according to claim 1, characterized in that: The second connector extends into the housing; and the circuit board is provided with a notch for avoiding the second connector.

14. A means of transport, characterized in that: It comprises an information processing module and the vehicle-mounted radar according to any one of claims 1 to 13; wherein the information processing module is provided with a third connector which is pluggable and connectable to the second connector.

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