Radar support, radar assembly and automobile

By designing a rotatable radar bracket and adjusting the detection angle of the radar body, the detection blind spot problem of existing automotive radars has been solved, the detection range has been expanded, the detection capability has been improved, and safety hazards have been reduced.

CN222645927UActive Publication Date: 2025-03-21CONTINENTAL ZHIXING TECH (SHANGHAI) CO LTD
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Patent Information

Application Number
CN202421440602.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-21
Publication Date
2025-03-21
Estimated Expiration
2034-06-21

AI Technical Summary

Technical Problem

The existing automotive radar has blind spots for detection in special scenarios, and cannot detect target objects in a timely and accurate manner, which poses certain safety hazards.

Method used

A rotatable radar bracket is designed to adjust the detection angle of the radar body and expand the detection range by rotating with respect to the external installation part in the first direction. The radar bracket includes a first end connected to the installation part of the outside world, and a first gear is provided with a second gear transmission connection of the outside world. The second gear drives the first gear to rotate, driving the radar bracket to rotate.

Benefits of technology

By adjusting the detection angle of the radar body, the detection range is expanded, the original detection blind spot is covered, the radar's detection ability in special scenarios is improved, and safety hazards are reduced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a radar support which comprises a first end and a second end along a first direction. The first end of the radar support is used for being rotationally connected with an external installation part. The second end of the radar support is provided with a first gear, the first gear is used for being in transmission connection with an external second gear, and the second gear can drive the first gear to rotate so as to drive the radar support to rotate around the first direction relative to the external mounting part. The radar support can rotate around the first direction relative to the external installation part, the detection angle of the radar body is adjusted, and the detection range is expanded. The utility model further provides a radar assembly and an automobile.
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Description

Technical Field

[0001] The utility model relates to the field of radar, in particular to a radar bracket, a radar component and a car. Background Art

[0002] With the continuous development of automobile intelligence, it is necessary to install various radars on cars to collect road condition information during driving. The collected information is used to assist drivers to control the car more safely, and it can also help protect the safety of pedestrians on the road.

[0003] In the current automotive radar layout environment, the radar is fixed at the installation position of the car and cannot be adjusted in angle. Therefore, its detection range is 15° to 165°. In special scenarios, due to the influence of the radar detection blind area (0° to 15° and 165° to 180°), it is impossible to detect the target object in a timely and accurate manner, which poses certain safety risks. Utility Model Content

[0004] The utility model aims to solve the technical problem of radar detection blind area. The utility model provides a radar bracket which can rotate around a first direction relative to an external mounting portion to adjust the detection angle of the radar body and expand the detection range.

[0005] In order to solve the above technical problems, the embodiment of the utility model discloses a radar bracket, along a first direction, the radar bracket comprises a first end and a second end;

[0006] The first end of the radar bracket is used to be rotatably connected to an external mounting portion;

[0007] The second end of the radar bracket is provided with a first gear, the first gear is used for transmission connection with an external second gear, and the second gear can drive the first gear to rotate, so as to drive the radar bracket to rotate around the first direction relative to the external mounting portion.

[0008] With the above technical solution, the second gear drives the first gear to rotate, driving the radar bracket to rotate around the first direction relative to the mounting portion of the outside world. When the radar body is accommodated in the radar bracket, the radar bracket can drive the radar body to rotate around the first direction relative to the mounting portion of the outside world. Therefore, the detection angle of the radar body can be adjusted to expand the detection range, and it is no longer limited to a fixed detection range, such as the 15° to 165° range in the background technology. The rotatable radar body in this technical solution does not have the detection blind spot in the background technology.

[0009] According to another specific embodiment of the present utility model, the radar bracket is a frame structure, and along the second direction, the radar bracket includes a accommodating cavity, the accommodating cavity includes a cavity wall, and the cavity wall is used to connect with the external radar body, and the second direction is perpendicular to the first direction.

[0010] By adopting the above technical solution, the cavity wall of the radar bracket is connected to the radar body, ensuring the installation connection between the radar body and the accommodating cavity. During the driving of the car, the radar body will not be separated from the radar bracket due to the bumps of the car body.

[0011] According to another specific embodiment of the utility model, the cavity wall includes a first cavity wall and a second cavity wall. Along a third direction, the first cavity wall and the second cavity wall are spaced apart from each other. The first cavity wall and the second cavity wall are respectively provided with a first buckle, and the first buckle is used to buckle with the radar body in the third direction, and the third direction is perpendicular to the first direction.

[0012] By adopting the above technical solution, in the third direction, the first buckle is engaged with the radar body, and the radar body is fixed in the third direction by the first buckle.

[0013] According to another specific embodiment of the utility model, the cavity wall includes a third cavity wall, and the third cavity wall is respectively connected to the first cavity wall and the second cavity wall. The third cavity wall is provided with a second buckle, and along the third direction, the second buckle is spaced apart from the first gear, and the second buckle is used to buckle with the radar body in the first direction.

[0014] By adopting the above technical solution, in the first direction, the second buckle is engaged with the radar body, and the radar body is fixed in the first direction through the second buckle.

[0015] According to another specific embodiment of the present utility model, the cavity wall includes a bottom wall, the bottom wall is respectively connected to the first cavity wall, the second cavity wall and the third cavity wall, and the bottom wall is provided with an elastic member, and the elastic member is used to abut against the radar body in the second direction.

[0016] By adopting the above technical solution, in the second direction, the elastic member abuts against the radar body, and the elastic member limits the radar body in the second direction.

[0017] In combination with the foregoing, the radar body can be fully fixed in the first direction, the second direction and the third direction to ensure the connection between the radar bracket and the radar body. During the driving of the car, the radar body will not be separated from the radar bracket due to the bumps of the car body.

[0018] According to another specific implementation of the present invention, the first end of the radar bracket is provided with a convex portion, and the convex portion is used to be rotatably connected to an external mounting portion.

[0019] By adopting the above technical solution, the convex portion of the radar bracket is rotatably connected to the external mounting portion. Therefore, when the second gear drives the first gear to rotate and the first gear drives the radar bracket to rotate, the radar bracket can be rotatably connected to the mounting portion through the convex portion, thereby rotating relative to the mounting portion around the first direction.

[0020] The embodiment of the utility model further discloses a radar assembly, the radar assembly comprising:

[0021] A radar bracket as described in any of the preceding items;

[0022] A radar body, wherein the radar body is accommodated in the radar bracket;

[0023] a second gear, the second gear being drivingly connected to the first gear of the radar bracket;

[0024] The mounting part includes a cavity, and along the first direction, the cavity has a first inner wall and a second inner wall opposite to each other, the first inner wall is rotatably connected to the radar bracket of the radar, the first inner wall is spaced apart from the cavity wall of the radar bracket, and the second gear is arranged on the second inner wall.

[0025] With the above technical solution, the first inner wall of the cavity of the mounting portion is spaced apart from the cavity wall of the radar bracket, so that when the radar bracket rotates relative to the mounting portion about the first direction, the radar bracket will not scrape the first inner wall of the mounting portion. In addition, the spacing between the first inner wall of the mounting portion and the cavity wall of the radar bracket can also facilitate the assembly process of the radar and the mounting portion.

[0026] According to another specific embodiment of the utility model, the second gear includes a tooth portion and a rotating shaft, the tooth portion of the second gear is located in the cavity of the mounting portion, and along the first direction, the second inner wall of the cavity is provided with a first through hole;

[0027] One end of the rotating shaft of the second gear is connected to the tooth portion, and the other end of the rotating shaft passes through the first through hole and is connected to an external motor.

[0028] According to another specific embodiment of the present utility model, along the first direction, the first inner wall is provided with a second through hole, the convex portion of the radar bracket is provided in the second through hole, and the convex portion is rotatably connected to the second through hole.

[0029] According to another specific implementation of the present utility model, the radar bracket of the radar assembly rotates around the first direction within a range of 0 to 30 degrees.

[0030] With the above technical solution, the current detection range of automotive radar is 15°~165°, and there are detection blind areas in the range of 0~15° and 165°~180°. In this technical solution, the radar bracket rotates around the first direction in the range of 0~30°, that is, the radar body rotates around the first direction in the range of 0~30°, which is enough to cover the detection blind areas in the range of 0~15° and 165°~180° in the background technology, and the detection blind areas in the background technology no longer exist.

[0031] According to another specific embodiment of the present utility model, the radar body is accommodated in a accommodating cavity of the radar assembly, the radar body includes an outer wall, and the cavity wall of the accommodating cavity is connected to the outer wall of the radar body.

[0032] The embodiment of the utility model further discloses a car, which comprises:

[0033] A radar assembly as described in any of the preceding items;

[0034] A motor is connected to the second gear of the radar assembly, and the motor is used to drive the second gear to rotate around a first direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 The stereoscopic view of the radar assembly of the utility model embodiment is shown. Figure 1 .

[0036] Figure 2 The stereoscopic view of the radar assembly of the utility model embodiment is shown. Figure 2 .

[0037] Figure 3 A stereoscopic view showing the connection between the radar body, the radar bracket and the first gear of the embodiment of the utility model Figure 1 .

[0038] Figure 4 A stereoscopic view showing the connection between the radar body, the radar bracket and the first gear of the embodiment of the utility model Figure 2 .

[0039] Figure 5 A schematic diagram showing the connection between the radar bracket and the first gear in an embodiment of the utility model is shown.

[0040] Description of Reference Numerals

[0041] Radar assembly 100;

[0042] Radar body 110; outer wall 111; connecting portion 112;

[0043] Radar bracket 120;

[0044] First end 121; second end 122; protrusion 123; accommodating cavity 124;

[0045] Cavity wall 125; first cavity wall 1251; second cavity wall 1252; third cavity wall 1253; bottom wall 1254;

[0046] A first buckle 126; a second buckle 127; an elastic member 128;

[0047] Mounting portion 130; cavity 131; first inner wall 132; second inner wall 133; first through hole 134; second through hole 135;

[0048] A first gear 140;

[0049] The second gear 150 ; the tooth portion 151 ; and the rotating shaft 152 . DETAILED DESCRIPTION

[0050] The following is an explanation of the implementation of the present invention by specific specific embodiments. Those skilled in the art can easily understand other advantages and functions of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation. On the contrary, the purpose of introducing the utility model in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0051] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0052] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model 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 cannot be understood as a limitation on the utility model.

[0053] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0054] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0055] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0056] refer to Figures 1 to 3 The present application provides a radar assembly 100 for a car (not shown in the figure), including a radar body 110, a radar bracket 120 and a mounting portion 130. The mounting portion 130 is a frame structure, and the mounting portion 130 includes a cavity 131, along a first direction ( Figure 1 and Figure 2 The cavity 131 has a first inner wall 132 and a second inner wall 133 opposite to each other. The radar bracket 120 is accommodated in the cavity 131 of the mounting portion 130, and the first inner wall 132 is rotatably connected to the radar bracket 120.

[0057] refer to Figure 2 and Figure 4 The radar bracket 120 is a frame structure, the radar body 110 is a rectangular parallelepiped, and the radar body 110 is accommodated in the radar bracket 120. Figure 4 In the X direction, the radar bracket 120 includes a first end 121 and a second end 122, and the first end 121 of the radar bracket 120 is rotatably connected to the first inner wall 132 of the mounting portion 130.

[0058] The second end 122 of the radar bracket 120 is provided with a first gear 140, and the radar assembly 100 includes a second gear 150, which is provided in a region of the second inner wall 133 of the mounting portion 130 facing the first gear 140. The first gear 140 is transmission-connected to the second gear 150, and the second gear 150 can drive the first gear 140 to rotate, so as to drive the radar bracket 120 to rotate relative to the mounting portion 130 around the first direction.

[0059] With the above technical solution, when the second gear 150 drives the first gear 140 to rotate, driving the radar bracket 120 to rotate relative to the mounting portion 130 of the radar assembly 100 around the first direction, since the radar body 110 is accommodated in the radar bracket 120, the radar bracket 120 can drive the radar body 110 to rotate relative to the mounting portion 130 outside around the first direction. Therefore, the detection angle of the radar body 110 can be adjusted to expand the detection range, and is no longer limited to a fixed detection range, such as the 15° to 165° range in the background technology. The rotatable radar body 110 in the technical solution does not have the detection blind area in the background technology.

[0060] In some possible implementations, reference Figure 1 The radar support 120 rotates in the first direction ( Figure 1 X direction) rotation.

[0061] With the above technical solution, the current detection range of automotive radar is 15° to 165°, and there are detection blind areas in the range of 0 to 15° and 165° to 180°. In this technical solution, the radar bracket 120 rotates around the first direction in the range of 0 to 30°, that is, the radar body 110 rotates around the first direction in the range of 0 to 30°, which is enough to cover the detection blind areas in the range of 0 to 15° and 165° to 180° in the background technology, and the detection blind areas in the background technology no longer exist.

[0062] In some possible implementations, reference Figure 1 and Figure 2 The second gear 150 includes a tooth portion 151 and a rotating shaft 152. The tooth portion 151 is meshed with the first gear 140 and is located in the cavity 131 of the mounting portion 130. Figure 2 The second inner wall 133 of the cavity 131 is provided with a first through hole 134. The automobile includes a motor (not shown in the figure). One end of the rotating shaft 152 of the second gear 150 is connected to the tooth portion 151, and the other end of the rotating shaft 152 passes through the first through hole 134 and is connected to the motor. The motor is used to drive the tooth portion 151 of the second gear 150 to rotate around the first direction.

[0063] In some possible implementations, reference Figure 2 and Figure 3 , along the first direction ( Figure 2 In the middle X direction), the first inner wall 132 of the mounting portion 130 is provided with a second through hole 135, the first end 121 of the radar bracket 120 is provided with a convex portion 123, the convex portion 123 of the radar bracket 120 is disposed in the second through hole 135, and the convex portion 123 is rotatably connected to the second through hole 135.

[0064] By adopting the above technical solution, the protrusion 123 of the radar bracket 120 is rotatably connected to the second through hole 135 of the first inner wall 132. Therefore, when the tooth portion 151 of the second gear 150 drives the first gear 140 to rotate, and the first gear 140 drives the radar bracket 120 to rotate, the radar bracket 120 can be rotatably connected to the second through hole 135 by the protrusion 123, so as to rotate relative to the mounting portion 130 around the first direction.

[0065] In some possible implementations, reference Figure 2 and Figure 5 , along the second direction ( Figure 5 In the middle Y direction), the radar bracket 120 includes a accommodating cavity 124, the accommodating cavity 124 includes a cavity wall 125, the first inner wall 132 of the mounting portion 130 is spaced apart from the cavity wall 125, and the second direction is perpendicular to the first direction.

[0066] By adopting the above technical solution, the first inner wall 132 of the mounting portion 130 is spaced apart from the cavity wall 125 of the radar bracket 120, so that when the radar bracket 120 rotates relative to the mounting portion 130 around the first direction, the radar bracket 120 will not scrape the first inner wall 132 of the mounting portion 130. In addition, the spacing between the first inner wall 132 of the mounting portion 130 and the cavity wall 125 of the radar bracket 120 can also facilitate the assembly process of the radar bracket 120 and the mounting portion 130.

[0067] Next reference Figures 3 to 5 , the radar body 110 and the radar bracket 120 are explained in detail. The radar body 110 includes an outer wall 111 , and the cavity wall 125 of the radar bracket 120 is connected to the outer wall 111 of the radar body 110 .

[0068] By adopting the above technical solution, the cavity wall 125 of the radar bracket 120 is connected to the outer wall 111 of the radar body 110, ensuring the installation connection between the radar body 110 and the accommodating cavity 124. During the driving of the car, the radar body 110 will not be separated from the radar bracket 120 due to the bumps of the car body.

[0069] In some possible implementations, reference Figure 3 and Figure 5 The cavity wall 125 includes a first cavity wall 1251 and a second cavity wall 1252, along the third direction ( Figure 5 The first cavity wall 1251 and the second cavity wall 1252 are spaced apart. The first cavity wall 1251 and the second cavity wall 1252 are respectively provided with two first buckles 126, and the first buckles 126 are snapped with the radar body 110 in the third direction, which is perpendicular to the first direction ( Figure 5 X direction).

[0070] With the above technical solution, in the third direction, the first buckle 126 is engaged with the radar body 110 , and the radar body 110 is fixed in the third direction by the first buckle 126 .

[0071] It should be noted that the embodiment of the present application does not impose any specific limitation on the number of the first buckles 126 . For example, in other possible implementations, the number of the first buckles 126 may be three, four, etc.

[0072] In some possible implementations, reference Figure 3 and Figure 5 The cavity wall 125 includes a third cavity wall 1253, and the third cavity wall 1253 is connected to the first cavity wall 1251 and the second cavity wall 1252 respectively. The third cavity wall 1253 is provided with a second buckle 127, along the third direction ( Figure 5 The second buckle 127 is spaced apart from the first gear 140, and the second buckle 127 is spaced apart from the first gear 140 in the first direction ( Figure 5 The radar body 110 is snap-connected with the radar body 110 in the X direction.

[0073] By adopting the above technical solution, in the first direction, the second buckle 127 is engaged with the radar body 110 , and the radar body 110 is fixed in the first direction by the second buckle 127 .

[0074] It should be noted that the embodiment of the present application does not impose any specific limitation on the number of the second buckles 127 . For example, in other possible implementations, the number of the second buckles 127 may be two, three, etc.

[0075] In some possible implementations, reference Figure 4 and Figure 5 The cavity wall 125 includes a bottom wall 1254, which is connected to the first cavity wall 1251, the second cavity wall 1252 and the third cavity wall 1253 respectively. The bottom wall 1254 is provided with four elastic members 128. The elastic members 128 are arranged in the second direction ( Figure 4 In the Y direction, it abuts against the radar body 110.

[0076] By adopting the above technical solution, in the second direction, the elastic member 128 abuts against the radar body 110 , and the elastic member 128 limits the radar body 110 in the second direction.

[0077] In combination with the above, in the first direction, the second buckle 127 is engaged with the radar body 110, and the second buckle 127 plays a fixing role on the radar body 110 in the first direction; in the second direction, the elastic member 128 is in contact with the radar body 110, and the elastic member 128 plays a limiting role on the radar body 110 in the second direction; in the third direction, the first buckle 126 is engaged with the radar body 110, and the first buckle 126 plays a fixing role on the radar body 110 in the third direction. Therefore, in the first direction, the second direction and the third direction, the radar body 110 can be fully fixed to ensure the connection between the radar bracket 120 and the radar body 110, and the radar body 110 will not be separated from the radar bracket 120 due to the bumps of the vehicle body during the driving of the car.

[0078] It should be noted that the embodiment of the present application does not impose any specific limitation on the number of elastic members 128 . For example, in other possible implementations, the number of elastic members 128 may be five, six, etc.

[0079] In some possible implementations, reference Figure 3 The radar body 110 further includes a connecting portion 112, which is used to electrically connect to an automotive electronic control unit (ECU) of the vehicle.

[0080] With the above technical solution, the radar body 110 emits electromagnetic waves. After the electromagnetic waves are transmitted to the air and contact an object, the object reflects the electromagnetic waves back to the radar body 110. The radar body 110 analyzes and decodes the reflected electromagnetic waves to obtain relevant properties of the object, such as speed, properties, distance, etc. Then, the radar body 110 outputs a fixed regular current waveform signal according to the reflected electromagnetic waves, and transmits it to the automotive electronic control unit (ECU) for subsequent processing.

[0081] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above contents are further detailed descriptions of the present invention in combination with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art may make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A radar bracket, characterized in that: Along the first direction, the radar bracket includes a first end and a second end; The first end of the radar bracket is used to be rotatably connected to an external mounting portion; The second end of the radar bracket is provided with a first gear, the first gear is used for transmission connection with an external second gear, and the second gear can drive the first gear to rotate, so as to drive the radar bracket to rotate around the first direction relative to the external mounting portion.

2. The radar bracket according to claim 1, characterized in that: The radar bracket is a frame structure. Along the second direction, the radar bracket includes a accommodating cavity. The accommodating cavity includes a cavity wall. The cavity wall is used to connect with an external radar body. The second direction is perpendicular to the first direction.

3. The radar bracket according to claim 2, characterized in that: The cavity wall includes a first cavity wall and a second cavity wall. Along a third direction, the first cavity wall and the second cavity wall are spaced apart from each other. The first cavity wall and the second cavity wall are respectively provided with a first buckle. The first buckle is used to be connected with the radar body in the third direction, and the third direction is perpendicular to the first direction.

4. The radar bracket according to claim 3, characterized in that: The cavity wall includes a third cavity wall, and the third cavity wall is connected to the first cavity wall and the second cavity wall respectively. The third cavity wall is provided with a second buckle. Along the third direction, the second buckle is spaced apart from the first gear, and the second buckle is used to be connected with the radar body in the first direction.

5. The radar bracket according to claim 4, characterized in that: The cavity wall comprises a bottom wall, the bottom wall is connected to the first cavity wall, the second cavity wall and the third cavity wall respectively, and the bottom wall is provided with an elastic member, and the elastic member is used to abut against the radar body in the second direction.

6. The radar bracket according to claim 1, characterized in that: The first end of the radar bracket is provided with a convex portion, and the convex portion is used for rotationally connecting with an external mounting portion.

7. A radar assembly, characterized in that: The radar assembly comprises: The radar bracket according to any one of claims 1 to 6; A radar body, wherein the radar body is accommodated in the radar bracket; a second gear, the second gear being drivingly connected to the first gear of the radar bracket; The mounting part includes a cavity, along the first direction, the cavity has a first inner wall and a second inner wall opposite to each other, the first inner wall is rotatably connected to the radar bracket, the first inner wall is spaced apart from the cavity wall of the radar bracket, and the second gear is arranged on the second inner wall.

8. The radar assembly according to claim 7, characterized in that The second gear comprises a tooth portion and a rotating shaft, the tooth portion of the second gear is located in the cavity of the mounting portion, and along the first direction, the second inner wall of the cavity is provided with a first through hole; One end of the rotating shaft of the second gear is connected to the tooth portion, and the other end of the rotating shaft passes through the first through hole and is connected to an external motor.

9. The radar assembly according to claim 8, characterized in that Along the first direction, the first inner wall is provided with a second through hole, the convex portion of the radar bracket is provided in the second through hole, and the convex portion is rotatably connected to the second through hole. 10 . The radar assembly according to claim 7 , wherein the radar bracket of the radar assembly rotates around a first direction within a range of 0 to 30 degrees.

11. The radar assembly according to claim 7, wherein the radar body is accommodated in an accommodating cavity of the radar assembly, the radar body comprises an outer wall, and the cavity wall of the accommodating cavity is connected to the outer wall of the radar body.

12. A car, characterized in that: The automobile comprises: The radar assembly according to any one of claims 7 to 11; A motor is connected to the second gear of the radar assembly, and the motor is used to drive the second gear to rotate around a first direction.