Vehicle-mounted radar waveguide antenna structure

Abstract

The utility model relates to the technical field of vehicle-mounted radars, and particularly discloses a vehicle-mounted radar waveguide antenna structure, which comprises a vehicle-mounted radar mechanism, an anti-collision mechanism assembled at the front end of the vehicle-mounted radar mechanism, and a waveguide antenna mechanism assembled inside the vehicle-mounted radar mechanism, the vehicle-mounted radar mechanism comprises a first shell, a second shell is fixedly mounted at the front end of the first shell, and a heat dissipation plate is clamped and fixed between the first shell and the second shell; a mounting seat is fixedly mounted in the first shell; the anti-collision mechanism comprises an anti-collision plate slidably mounted at the front end of the second shell; according to the utility model, heat accumulated inside can be directly led out through the frame position, heat accumulation inside the first shell and the second shell is effectively relieved, the waveguide antenna body can be in a proper operation environment, the signal transmission effect of the waveguide antenna is prevented from being influenced, and more convenience is brought to use.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle-mounted radar technology, specifically relating to a vehicle-mounted radar waveguide antenna structure. Background Technology

[0002] With the rapid development of automotive intelligence and autonomous driving technology, vehicle radar plays an irreplaceable role as a key sensor for vehicles to perceive their surroundings. By emitting and receiving electromagnetic waves, vehicle radar can acquire information such as the distance, speed, and angle of objects around the vehicle in real time, providing important decision-making basis for autonomous driving systems. As one of the core components of vehicle radar, the performance of waveguide antennas directly determines the radar's detection capability. Waveguide antennas have advantages such as low loss, high power capacity, and good directivity, and can efficiently radiate electromagnetic waves in a designated direction while suppressing interference from other directions. Therefore, they have been widely used in the field of vehicle radar.

[0003] However, waveguide antennas in current vehicle radars typically generate a lot of heat during operation. Since the waveguide antenna is installed inside the vehicle radar housing, prolonged operation can cause heat to accumulate inside the housing and not dissipate in time, which can affect the signal transmission performance of the waveguide antenna and cause considerable inconvenience to users. To address this issue, the applicant proposes a vehicle radar waveguide antenna structure to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a vehicle-mounted radar waveguide antenna structure that allows the heat generated inside to be quickly dissipated from the shell frame during operation, effectively alleviating heat accumulation inside the shell. This ensures that the waveguide antenna body is in a suitable operating environment, avoiding any impact on the signal transmission performance of the waveguide antenna and bringing greater convenience to users.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A vehicle-mounted radar waveguide antenna structure includes:

[0007] The vehicle-mounted radar mechanism and the anti-collision mechanism mounted at the front end of the vehicle-mounted radar mechanism, as well as the waveguide antenna mechanism mounted inside the vehicle-mounted radar mechanism;

[0008] The vehicle-mounted radar mechanism includes a first housing, a second housing fixedly mounted on the front end of the first housing, and a heat dissipation plate clamped and fixed between the first housing and the second housing; a mounting base is fixedly mounted inside the first housing.

[0009] The anti-collision mechanism includes an anti-collision plate that is slidably mounted on the front end of the second housing;

[0010] The waveguide antenna mechanism includes a waveguide antenna body fixedly installed at the front end of the mounting base, a heat-conducting plate fixedly installed at the rear end of the waveguide antenna body, and a graphite sheet clamped and fixed between the heat-conducting plate and the waveguide antenna body.

[0011] Preferably, a waveguide cavity is formed at the front end of the waveguide antenna body, and an isolation groove is formed at the front end of the waveguide antenna body adjacent to the waveguide cavity.

[0012] Preferably, a buffer spring is fixedly installed between the limiting frame on the inner wall of the second housing and the anti-collision plate.

[0013] Preferably, the anti-collision plate is slidably mounted to the second housing via a slider, and the front end of the second housing has a groove for the slider to slide.

[0014] Preferably, the top and bottom of both the first housing and the second housing are provided with limiting grooves, and the heat sink extends into the limiting grooves.

[0015] Preferably, a radar circuit board is fixedly mounted on the front end of the mounting base, and the mounting base and the waveguide antenna body are fixedly mounted together by a mounting bracket.

[0016] Preferably, a data connection port is fixedly installed on one side of the first housing, and fixing feet are fixedly installed on the top and bottom of the first housing.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] (1) The present invention provides a heat dissipation plate between the first housing and the second housing. The heat dissipation plate can be used in conjunction with the graphite sheet to absorb the heat on the waveguide antenna body. The heat dissipation plate can directly conduct the heat accumulated inside the first housing and the second housing to the outside through the frame position, which can effectively accelerate the heat dissipation of the heat dissipation plate and effectively alleviate the heat accumulation inside the first housing and the second housing. This allows the waveguide antenna body to be in a suitable operating environment, avoids affecting the signal transmission effect of the waveguide antenna, and brings more convenience to the user.

[0019] (2) This utility model is equipped with an anti-collision mechanism, which can cause the anti-collision plate to move back and forth when foreign objects in the external environment come into contact with the anti-collision plate during the driving process of the car. This can effectively deflect the impact force and prevent the second shell from being deformed by the impact, causing squeezing damage to the waveguide antenna body, thus effectively improving the protection effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0022] Figure 3 This is a schematic diagram of the disassembled structure of the vehicle-mounted radar mechanism of this utility model;

[0023] Figure 4 This is a schematic diagram of the anti-collision mechanism of this utility model;

[0024] Figure 5 This is a schematic diagram of the waveguide antenna mechanism of this utility model;

[0025] In the diagram: 1. Vehicle-mounted radar mechanism; 11. First housing; 12. Limiting groove; 13. Mounting base; 14. Mounting bracket; 15. Heat sink; 16. Radar circuit board; 17. Second housing; 18. Fixing foot; 19. Data connection port; 110. Slide groove; 2. Anti-collision mechanism; 21. Anti-collision plate; 22. Slider; 23. Limiting bracket; 24. Buffer spring; 3. Waveguide antenna mechanism; 31. Waveguide antenna body; 32. Waveguide cavity; 33. Isolation groove; 34. Graphite sheet; 35. Heat-conducting plate. Detailed Implementation

[0026] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Example 1:

[0030] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a vehicle-mounted radar waveguide antenna structure includes:

[0031] The vehicle-mounted radar mechanism 1, the anti-collision mechanism 2 mounted on the front end of the vehicle-mounted radar mechanism 1, and the waveguide antenna mechanism 3 mounted inside the vehicle-mounted radar mechanism 1.

[0032] The vehicle-mounted radar mechanism 1 includes a first housing 11, a second housing 17 is fixedly installed at the front end of the first housing 11, and a heat sink 15 is clamped and fixed between the first housing 11 and the second housing 17; a mounting base 13 is fixedly installed inside the first housing 11.

[0033] The anti-collision mechanism 2 includes an anti-collision plate 21 that is slidably mounted on the front end of the second housing 17;

[0034] The waveguide antenna mechanism 3 includes a waveguide antenna body 31 fixedly installed at the front end of the mounting base 13, a heat-conducting plate 35 fixedly installed at the rear end of the waveguide antenna body 31, and a graphite sheet 34 clamped and fixed between the heat-conducting plate 35 and the waveguide antenna body 31.

[0035] As can be seen from the above, by fixing this device to a suitable position on the front grille of a car, radar detection can be easily performed through the waveguide antenna body 31, making it convenient to identify obstacles in front of the car. By suspending and fixing the waveguide antenna body 31 on the mounting base 13, heat can be easily dissipated during operation. The graphite sheet 34 can easily conduct the heat dissipated by the waveguide antenna body 31 to the heat conduction plate 35, which can easily absorb the heat on the waveguide antenna body 31. The heat dissipation plate 15 can directly conduct the heat accumulated inside the first housing 11 and the second housing 17 to the outside through the frame position, which can effectively accelerate the heat dissipation of the heat conduction plate 35 and effectively alleviate the heat accumulation inside the first housing 11 and the second housing 17. This allows the waveguide antenna body 31 to be in a suitable operating environment, avoiding affecting the signal transmission effect of the waveguide antenna and bringing more convenience to the user.

[0036] When a foreign object in the external environment comes into contact with the anti-collision plate 21 during the vehicle's operation, the anti-collision plate 21 can move back and forth, which can buffer the impact force and prevent the front end of the second housing 17 from being deformed by the impact of the foreign object and causing squeezing damage to the waveguide antenna body 31, thus effectively improving the protection effect.

[0037] Depend on Figure 5 It can be seen that a waveguide cavity 32 is provided at the front end of the waveguide antenna body 31, and an isolation groove 33 is provided at the front end of the waveguide antenna body 31 adjacent to the waveguide cavity 32.

[0038] As can be seen from the above, electromagnetic signals can be transmitted through the waveguide cavity 32, and the isolation groove 33 can conveniently isolate the waveguide cavities 32 at adjacent positions, which can effectively reduce signal interference, improve the stability of electromagnetic signal transmission, and enhance signal accuracy.

[0039] For details, please refer to Figure 4 As shown, a limiting frame 23 is located on the inner wall of the second housing 17, and a buffer spring 24 is fixedly installed between the limiting frame 23 and the anti-collision plate 21.

[0040] As can be seen from the above, the limit bracket 23 can support the buffer spring 24, and when the anti-collision plate 21 is impacted, it can compress the buffer spring 24. Through the elastic action of the buffer spring 24, the anti-collision plate 21 can buffer the impact force and avoid deformation of the second shell 17.

[0041] For details, please refer to Figure 4 As shown, the anti-collision plate 21 and the second housing 17 are slidably installed together by a slider 22, and the front end of the second housing 17 is provided with a groove 110 for the slider 22 to slide.

[0042] As can be seen from the above, the slider 22 can slide along the groove 110, which allows the anti-collision plate 21 to move back and forth stably, preventing the anti-collision plate 21 from tilting.

[0043] Example 2:

[0044] refer to Figure 3 As shown, the top and bottom of the first housing 11 and the second housing 17 are provided with limiting grooves 12, and the heat sink 15 extends into the limiting grooves 12.

[0045] As can be seen from the above, the limiting groove 12 can conveniently limit the heat sink 15, so that the heat sink 15 will not fall off. At the same time, it can form a sealing effect between the heat sink 15 and the first housing 11 and the second housing 17, preventing external dust and foreign objects from entering the interior.

[0046] refer to Figure 3 As shown, a radar circuit board 16 is fixedly mounted on the front end of the mounting base 13, and the mounting base 13 and the waveguide antenna body 31 are fixedly mounted together by a mounting bracket 14.

[0047] As can be seen from the above, the radar circuit board 16 can process the electromagnetic signals of the waveguide antenna body 31, which facilitates the transmission of data to the vehicle system. The mounting bracket 14 can keep the waveguide antenna body 31 at a certain distance from the radar circuit board 16, which can quickly dissipate the heat generated during operation and avoid the heat accumulation that could affect the operation.

[0048] refer to Figure 3 As shown, a data connection port 19 is fixedly installed on one side of the first housing 11, and fixed feet 18 are fixedly installed on the top and bottom of the first housing 11.

[0049] As can be seen from the above, the data connection port 19 can be easily connected to the wiring plug of the car system, which can facilitate power supply and data transmission of this device. By using bolts, the device can be fixed to a suitable position on the front grille of the car using the fixing feet 18.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vehicular radar waveguide antenna structure, characterized by, include: The vehicle-mounted radar mechanism (1) and the anti-collision mechanism (2) assembled at the front end of the vehicle-mounted radar mechanism (1), and the waveguide antenna mechanism (3) assembled inside the vehicle-mounted radar mechanism (1); The vehicle-mounted radar mechanism (1) includes a first housing (11), a second housing (17) is fixedly installed at the front end of the first housing (11), and a heat sink (15) is clamped and fixed between the first housing (11) and the second housing (17); a mounting base (13) is fixedly installed inside the first housing (11). The anti-collision mechanism (2) includes an anti-collision plate (21) that is slidably mounted on the front end of the second housing (17); The waveguide antenna mechanism (3) includes a waveguide antenna body (31) fixedly installed at the front end of the mounting base (13), a heat-conducting plate (35) fixedly installed at the rear end of the waveguide antenna body (31), and a graphite sheet (34) clamped and fixed between the heat-conducting plate (35) and the waveguide antenna body (31).

2. The vehicle-mounted radar waveguide antenna structure according to claim 1, characterized in that: The front end of the waveguide antenna body (31) is provided with a waveguide cavity (32), and the front end of the waveguide antenna body (31) is provided with an isolation groove (33) adjacent to the waveguide cavity (32).

3. The vehicle-mounted radar waveguide antenna structure according to claim 1, characterized in that: The second housing (17) has a limiting frame (23) on its inner wall, and a buffer spring (24) is fixedly installed between the limiting frame (23) and the anti-collision plate (21).

4. The vehicle-mounted radar waveguide antenna structure according to claim 1, characterized in that: The anti-collision plate (21) is slidably mounted to the second housing (17) via a slider (22), and the front end of the second housing (17) is provided with a groove (110) for the slider (22) to slide.

5. The vehicle-mounted radar waveguide antenna structure according to claim 1, characterized in that: The first housing (11) and the second housing (17) are provided with limiting grooves (12) at the top and bottom, and the heat sink (15) extends into the limiting grooves (12).

6. The vehicle-mounted radar waveguide antenna structure according to claim 1, characterized in that: The front end of the mounting base (13) is fixedly mounted with a radar circuit board (16), and the mounting base (13) and the waveguide antenna body (31) are fixedly mounted together by a mounting bracket (14).

7. The vehicle-mounted radar waveguide antenna structure according to claim 1, characterized in that: A data connection port (19) is fixedly installed on one side of the first housing (11), and fixed feet (18) are fixedly installed on the top and bottom of the first housing (11).

Images