A radar and detection device

Abstract

The embodiment of the present application discloses a radar and a detection device, the radar comprises a lens barrel and an optical module; the lens barrel is provided with a positioning part; the optical module comprises an optical assembly, a structural part and an adhesive part, the structural part is provided with a positioning hole, the positioning part is inserted into the positioning hole, the adhesive part is filled between the inner wall of the positioning hole and the outer wall of the positioning part, the adhesive part bonds and fixes the inner wall of the positioning hole and the outer wall of the positioning part, and the optical assembly is arranged on the side of the structural part facing the lens barrel. Through the above mode, the cooperation of the positioning part and the positioning hole in the embodiment of the present application can conveniently and actively and accurately position the optical module and the optical lens module arranged on the lens barrel, so as to complete light adjustment.

Description

Technical Field

[0001] The present invention relates to the field of radar technology, and in particular to a radar and detection device. Background Technology

[0002] LiDAR is a device that detects the distance, shape, and environmental features of a target by emitting laser pulses and measuring their return time or intensity.

[0003] Generally, a lidar system includes a housing, a transmitting module, a transmitting lens module, a receiving module, a receiving lens module, and a main control module. The housing serves as the mounting base for the remaining structures in the lidar system. The transmitting module includes a transmitting circuit board and a light source mounted on the transmitting circuit board, which generates detection light. This detection light passes through the transmitting lens module and is then emitted by the lidar system to detect target objects. The receiving module includes a receiving circuit board and a photoelectric detection module mounted on the receiving circuit board. The detection light is reflected by the target object to form an echo light, which passes through the receiving lens and is then emitted by the receiving module to achieve the reception of the echo light. The main control module is communicatively connected to both the transmitting and receiving modules to control their operation.

[0004] When assembling the transmitting lens module and the transmitting module, and when assembling the receiving lens module and the receiving module, it is necessary to align the transmitting / receiving modules with the transmitting / receiving lens modules. Since the positioning accuracy is higher than the manufacturing accuracy of the structure itself, active and precise positioning is required to complete the light adjustment. However, the current structure of lidar is not conducive to the positioning of the aforementioned transmitting / receiving modules. Summary of the Invention

[0005] The present invention aims to provide a radar and detection device that can overcome or at least partially solve the above-mentioned problems.

[0006] To solve the above-mentioned technical problems, one technical solution adopted in this embodiment of the invention is: a radar, including a lens barrel and an optical module; the lens barrel is provided with a positioning part; the optical module includes an optical component, a structural component and an adhesive component, the structural component is provided with a positioning hole, the positioning part is inserted into the positioning hole, the adhesive component fills the space between the inner wall of the positioning hole and the outer wall of the positioning part, the adhesive component bonds and fixes the inner wall of the positioning hole and the outer wall of the positioning part, and the optical component is disposed on the side of the structural component facing the lens barrel.

[0007] Optionally, along the first direction, the area of ​​the cross-section of the positioning part gradually decreases, and the cross-section of the positioning part is the cross-section of the positioning part along the second direction; wherein, the first direction is the direction from the optical component to the structural member, and the second direction is perpendicular to the first direction.

[0008] Optionally, along the first direction, the cross-sectional area of ​​the positioning hole gradually decreases, and the cross-section of the positioning hole is the cross-section of the positioning hole along the second direction.

[0009] Optionally, along the first direction, the positioning part has a first taper, and the positioning hole has a second taper, wherein the first taper is equal to the second taper.

[0010] Optionally, the structural component has a groove on the side opposite to the optical component, the positioning hole communicates with the bottom of the groove, and the portion of the positioning part extending out of the positioning hole along a first direction is received in the groove; wherein, the first direction is from the optical component to the structural component.

[0011] Optionally, the depth of the groove is greater than the height of the portion of the positioning part that extends out of the positioning hole.

[0012] Optionally, along the first direction, the area of ​​at least a portion of the cross-section of the groove gradually increases, and the cross-section of the groove is a cross-section of the groove along a second direction, which is perpendicular to the first direction.

[0013] Optionally, the groove includes a first groove segment and a second groove segment, the first groove segment, the second groove segment and the positioning hole are connected in sequence, and the cross-sectional area of ​​the first groove segment gradually increases along the first direction, and the cross-section of the first groove segment is the cross-section of the first groove segment along the second direction.

[0014] Optionally, the outer wall of the positioning part is provided with a first laser-engraved surface, the first laser-engraved surface is provided with a plurality of first laser-engraved grooves, and one side of the adhesive is at least partially embedded in the plurality of first laser-engraved grooves; and / or, the inner wall of the positioning hole is provided with a second laser-engraved surface, the second laser-engraved surface is provided with a plurality of second laser-engraved grooves, and the other side of the adhesive is at least partially embedded in the plurality of second laser-engraved grooves.

[0015] Optionally, the structural component has a protrusion on the side facing the lens barrel, the positioning hole passes through the protrusion, the optical component has a clearance hole, and the protrusion is inserted into the clearance hole.

[0016] Optionally, the optical component includes an optical main board, an optical chip, a light-shielding element, and a light-filtering element. The optical main board is disposed on the side of the structural component facing the lens barrel, the optical chip is disposed on the side of the optical main board facing the lens barrel, the light-shielding element covers the optical chip, the light-shielding element has a light-transmitting hole, the light-filtering element is disposed in the light-transmitting hole, and the clearance hole is disposed on the optical main board.

[0017] Optionally, the height of the protrusion is greater than the thickness of the optical motherboard.

[0018] Optionally, the lens barrel and structural components are both made of metal.

[0019] Optionally, the structural component is a heat sink, and the optical module is a transmitting module or a receiving module.

[0020] To solve the above-mentioned technical problems, another technical solution adopted in the embodiments of the present invention is to provide a detection device, including the radar described above.

[0021] The beneficial effects of this invention are as follows: Unlike existing technologies, this invention provides a radar system including a lens barrel and an optical module. The lens barrel has a positioning part. The optical module includes an optical component, a structural member, and an adhesive member. The structural member has a positioning hole, the positioning part is inserted into the positioning hole, and the adhesive member fills the space between the inner wall of the positioning hole and the outer wall of the positioning part, bonding and fixing the inner wall of the positioning hole and the outer wall of the positioning part. The optical component is located on the side of the structural member facing the lens barrel. Through this method, the cooperation between the positioning part and the positioning hole in this invention allows for convenient and precise active positioning of the optical module with the optical lens module located in the lens barrel, thereby achieving light adjustment. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in specific embodiments of the present invention or the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0023] Figure 1 This is a schematic diagram of the overall structure of the radar provided in an embodiment of the present invention;

[0024] Figure 2 This is an exploded view of the overall structure of the radar provided in an embodiment of the present invention;

[0025] Figure 3 This is a cross-sectional view of the overall structure of the radar provided in an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the positioning part and positioning hole of the radar provided in an embodiment of the present invention. Figure 1 ;

[0027] Figure 5 This is a schematic diagram of the positioning part and positioning hole of the radar provided in an embodiment of the present invention. Figure 2 ;

[0028] Figure 6 This is a schematic diagram of the positioning part and positioning hole of the radar provided in an embodiment of the present invention. Figure 3 ;

[0029] Figure 7 This is a partial structural diagram of the radar provided in an embodiment of the present invention. Figure 1 ;

[0030] Figure 8 This is a partial structural diagram of the radar provided in an embodiment of the present invention. Figure 2 ;

[0031] Figure 9 This is a partial structural diagram of the radar provided in an embodiment of the present invention. Figure 3 .

[0032] Explanation of reference numerals in the attached figures:

[0033] 1 Lens tube, 11 Positioning part, 12 Emitting plate structure assembly, 121 Light emission hole, 122 Heat dissipation boss, 123 Isolation boss;

[0034] 3 Optical module, 31 Optical component, 311 Clearance hole, 312 Optical motherboard, 313 Optical chip, 314 Light shield, 3141 Light transmission hole, 315 Filter, 32 Structural component, 321 Positioning hole, 322 Groove, 3221 First groove segment, 3222 Second groove segment, 323 Protrusion, 33 Adhesive component;

[0035] 100 radar;

[0036] X is the first direction, and Y is the second direction. Detailed Implementation

[0037] To facilitate understanding of the present invention, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "inner," "outer," "vertical," "horizontal," etc., used in this specification indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0039] LiDAR is a device that detects the distance, shape, and environmental features of a target by emitting laser pulses and measuring their return time or intensity.

[0040] Generally, a lidar system includes a housing, a transmitting module, a transmitting lens module, a receiving module, a receiving lens module, and a main control module. The housing serves as the mounting base for the remaining structures in the lidar system. The transmitting module includes a transmitting circuit board and a light source mounted on the transmitting circuit board, which generates detection light. This detection light passes through the transmitting lens module and is then emitted by the lidar system to detect target objects. The receiving module includes a receiving circuit board and a photoelectric detection module mounted on the receiving circuit board. The detection light is reflected by the target object to form an echo light, which passes through the receiving lens and is then emitted by the receiving module to achieve the reception of the echo light. The main control module is communicatively connected to both the transmitting and receiving modules to control their operation.

[0041] When assembling the transmitting lens module and the transmitting module, and when assembling the receiving lens module and the receiving module, it is necessary to align the transmitting / receiving modules with the transmitting / receiving lens modules. Since the positioning accuracy is higher than the manufacturing accuracy of the structure itself, active and precise positioning is required to complete the light adjustment. However, the current structure of lidar is not conducive to the positioning of the aforementioned transmitting / receiving modules.

[0042] In view of this, the present invention provides an embodiment of radar 100, which enables the optical module 3 to perform active and precise positioning with the optical lens module disposed on the lens barrel 1 in order to complete the light adjustment.

[0043] To facilitate the reader's understanding of the concept of the embodiments of the present invention, the specific structure of the radar 100 is described below:

[0044] Please see Figures 1 to 4The radar 100 includes a lens barrel 1 and an optical module 3. The lens barrel 1 is provided with a positioning part 11. The optical module 3 includes an optical component 31, a structural member 32, and an adhesive member 33. The structural member 32 is provided with a positioning hole 321, and the positioning part 11 is inserted into the positioning hole 321. The adhesive member 33 fills the space between the inner wall of the positioning hole 321 and the outer wall of the positioning part 11, bonding and fixing the inner wall of the positioning hole 321 and the outer wall of the positioning part 11. The optical component 31 is located on the side of the structural member 32 facing the lens barrel 1. It can be understood that the optical component 31 includes a transmitting optical component or a receiving optical component. The lens barrel 1 includes a transmitting lens barrel and a receiving lens barrel. The transmitting optical component corresponds to the transmitting optical lens with the transmitting lens barrel, and the receiving optical component corresponds to the receiving optical lens with the receiving lens barrel.

[0045] Specifically, the structural component 32 is plate-shaped and has a first part and a second part with different thicknesses. The thickness of the first part is greater than that of the second part. The positioning hole 321 is provided in the first part to increase the depth of the positioning hole 321, thereby increasing the height of the adhesive 33 filling the space between the positioning part 11 and the positioning hole 321, improving the stability between the positioning part 11 and the positioning hole 321, and thus improving the stability between the optical module 3 and the lens barrel 1.

[0046] Through the above method, the positioning part 11 and the positioning hole 321 cooperate to facilitate the active and precise positioning of the optical module 3 and the optical lens module set in the lens barrel 1, so as to complete the light adjustment.

[0047] In some embodiments, the radar includes a housing, and a structural member 32 is disposed between the lens barrel 1 and the housing. The structural member 32 can be used to improve the stability between the lens barrel 1 and the housing, thereby improving the stability of the optical assembly 31.

[0048] In some embodiments, structural component 32 is a heat sink, and the heat generated by optical component 31 during operation is transferred to the heat sink for dissipation, which helps to improve the heat dissipation efficiency of optical module 3.

[0049] In some embodiments, optical module 3 is a transmitting module, or optical module 3 is a receiving module.

[0050] For the positioning part 11 mentioned above, please refer to Figures 3 to 5 Along the first direction X, the area of ​​the cross-section of the positioning part 11 gradually decreases, and the cross-section of the positioning part 11 is the cross-section of the positioning part 11 along the second direction Y; wherein, the first direction X is the direction from the optical component 31 to the structural component 32, and the second direction Y is perpendicular to the first direction X.

[0051] In the above manner, the positioning part 11 is a conical column, which not only increases the surface area of ​​the outer wall of the positioning part 11, thereby increasing the bonding area between the positioning part 11 and the adhesive 33, thus improving the bonding firmness between the positioning part 11 and the adhesive 33, but also increases the rigidity of the positioning part 11.

[0052] For the aforementioned positioning hole 321, please refer to Figures 3 to 5 Along the first direction X, the area of ​​the cross-section of the positioning hole 321 gradually decreases, and the cross-section of the positioning hole 321 is the cross-section of the positioning hole 321 along the second direction Y.

[0053] In this way, the positioning hole 321 has a conical structure, which can increase the surface area of ​​the inner wall of the positioning hole 321, thereby increasing the bonding area between the positioning hole 321 and the adhesive 33, and thus improving the bonding firmness between the positioning hole 321 and the adhesive 33.

[0054] For the aforementioned positioning part 11 and positioning hole 321, please refer to Figures 3 to 5 Along the first direction X, the positioning part 11 has a first taper, and the positioning hole 321 has a second taper, the first taper being equal to the second taper.

[0055] By using the above method, the uniformity of the thickness of the adhesive 33 filling the space between the positioning part 11 and the positioning cavity can be improved, and the adhesive 33 can be prevented from being too thick or too thin in some areas, which would affect the firmness of the adhesive 33.

[0056] For the aforementioned positioning part 11 and positioning hole 321, please refer to Figure 4 and Figure 5 The outer wall of the positioning part 11 is provided with a first laser-engraved surface, and the first laser-engraved surface is provided with a plurality of first laser-engraved grooves. At least one side of the adhesive 33 is embedded in a plurality of first laser-engraved grooves; and / or, the inner wall of the positioning hole 321 is provided with a second laser-engraved surface, and the second laser-engraved surface is provided with a plurality of second laser-engraved grooves. At least one side of the adhesive 33 is embedded in a plurality of second laser-engraved grooves.

[0057] In this way, both the first laser-engraved surface and the second laser-engraved surface are uneven surfaces, and the plurality of first laser-engraved grooves and the plurality of second laser-engraved grooves are grooves of varying depths, which can improve the adhesion between the adhesive 33 and the outer wall of the positioning part 11 and the inner wall of the positioning hole 321, and improve the adhesion firmness.

[0058] For the aforementioned positioning part 11 and positioning hole 321, please refer to Figure 6 The number of positioning parts 11, positioning holes 321 and adhesive parts 33 are all multiple. Multiple positioning parts 11 are evenly spaced and arranged around the lens barrel 1. Multiple positioning holes 321 are evenly spaced and arranged around the structural member 32. Multiple positioning parts 11 and multiple positioning holes 321 are inserted into each other in a one-to-one correspondence. An adhesive part 33 is filled between the inner wall of a positioning hole 321 and the outer wall of a positioning part 11.

[0059] The above methods can improve the stability between the optical module 3 and the lens barrel 1.

[0060] For the radar 100 mentioned above, please refer to Figures 3 to 5 The structural component 32 has a groove 322 on the side away from the optical component 31. The positioning hole 321 is connected to the bottom of the groove 322. The part of the positioning part 11 extending out of the positioning hole 321 along the first direction X is received in the groove 322. The part of the adhesive 33 extending out of the positioning hole 321 along the first direction X fills the space between the inner wall of the groove 322 and the outer wall of the part of the positioning part 11 extending out of the positioning hole 321. The first direction X is the direction from the optical component 31 to the structural component 32.

[0061] By using the above method, the height of the positioning part 11 can be increased, thereby increasing the height of the adhesive 33 filling the space between the positioning part 11 and the positioning hole 321, improving the stability between the positioning part 11 and the positioning hole 321, and thus improving the stability between the optical module 3 and the lens barrel 1.

[0062] For the groove 322 mentioned above, please refer to Figure 4 and Figure 5 Please refer to the following as well. Figure 7 The depth of the groove 322 is greater than the height of the part of the positioning part 11 that extends out of the positioning hole 321.

[0063] Specifically, the depth of the groove 322 is defined as H1, and the height of the part of the positioning part 11 extending out of the positioning hole 321 is defined as H2, then H1 > H2.

[0064] In this way, the volume of the groove 322 is larger than the volume of the portion of the adhesive 33 contained in the groove 322, which can prevent the adhesive 33 from overflowing before it solidifies.

[0065] For the groove 322 mentioned above, please refer to Figure 4 and Figure 5 Along the first direction X, the area of ​​at least part of the cross-section of the groove 322 gradually increases, and the cross-section of the groove 322 is the cross-section of the groove 322 along the second direction Y, which is perpendicular to the first direction X.

[0066] Specifically, the groove 322 includes a first groove segment 3221 and a second groove segment 3222. The first groove segment 3221, the second groove segment 3222 and the positioning hole 321 are connected in sequence. Along the first direction X, the cross-sectional area of ​​the first groove segment 3221 gradually increases. The cross-section of the first groove segment 3221 is the cross-section of the first groove segment 3221 along the second direction Y.

[0067] In this way, the groove 322 is at least partially cone-shaped, which increases the volume of the groove 322 so that it can accommodate a larger adhesive component 33 and reduce the probability of the adhesive component 33 overflowing before solidification.

[0068] For the radar 100 mentioned above, please refer to Figure 4 and Figure 5 Please refer to the following as well. Figure 8 The structural component 32 has a protrusion 323 on the side facing the lens barrel 1, and the positioning hole 321 passes through the protrusion 323. The optical component 31 has a clearance hole 311, and the protrusion 323 is inserted into the clearance hole 311.

[0069] In the above manner, when the positioning hole 321 penetrates the protrusion 323, the depth of the positioning hole 321 can be increased, thereby increasing the height of the adhesive 33 filling the space between the positioning part 11 and the positioning hole 321, improving the stability between the positioning part 11 and the positioning hole 321, and thus improving the stability between the optical module 3 and the lens barrel 1; in addition, when the protrusion 323 is inserted into the clearance hole 311, it can not only provide a positioning function during the installation of the optical component 31, but also improve the stability between the optical component 31 and the structural component 32.

[0070] For the aforementioned optical component 31, please refer to Figure 8 The optical component 31 includes an optical main board 312, an optical chip 313, a light shield 314, and a light filter 315. The optical main board 312 is disposed on the side of the structural component 32 facing the lens barrel 1. The optical chip 313 is disposed on the side of the optical main board 312 facing the lens barrel 1. The light shield 314 covers the optical chip 313 and has a light-transmitting hole 3141. The light filter 315 is disposed in the light-transmitting hole 3141, and the clearance hole 311 is disposed on the optical main board 312.

[0071] For the aforementioned optical component 31 and structural component 32, please refer to Figure 8 and Figure 9 The height of the protrusion 323 is greater than the thickness of the optical motherboard 312.

[0072] Specifically, the height of the protrusion 323 is defined as H3, and the thickness of the optical mainboard 312 is defined as H4, so H3 > H4.

[0073] In the above manner, the protrusion 323 penetrates the avoidance hole 311. When the optical main board 312 is disposed on the side of the structural member 32 facing the lens barrel 1, the protrusion 323 contacts the lens barrel 1 before the optical main board 312, thus avoiding collision between the optical main board 312 and the lens barrel 1.

[0074] For the radar 100 mentioned above, both the lens barrel 1 and the structural component 32 are made of metal.

[0075] By means of the above method, the material of the lens barrel 1 and the material of the structural component 32 can be the same, thereby making the materials of the positioning part 11 and the positioning hole 321 the same. This makes the thermal expansion coefficient of the positioning part 11 the same as that of the positioning hole 321, avoiding thermal deformation caused by the difference in thermal expansion coefficient between the positioning part 11 and the positioning hole 321, which would have an adverse effect on the bonding firmness of the adhesive component 33.

[0076] For the radar 100 mentioned above, please refer to Figure 6 When the optical module is a transmitting optical module, it includes a transmitting plate structure assembly 12. The transmitting plate structure assembly 12 is provided with a light-emitting hole 121, a heat dissipation boss 122, and an isolation boss 123. The heat dissipation boss 122 surrounds the isolation boss 123, and the isolation boss 123 surrounds the light-emitting hole 121. The optical module 3 includes a transmitting chip (not shown), which emits laser light through the light-emitting hole 121 to the external environment. The transmitting chip abuts against the heat dissipation boss 122, and a thermally conductive layer (not shown) is provided between the transmitting chip and the heat dissipation boss 122. The isolation boss 123 is provided between the light-emitting hole 121 and the heat dissipation boss 122, and the height of the isolation boss 123 is higher than that of the heat dissipation boss 122. The isolation boss 123 is used to prevent the thermally conductive layer from contaminating the light-emitting area of ​​the light-emitting hole 121. The thermally conductive layer includes, but is not limited to, thermally conductive gel.

[0077] To facilitate readers' understanding of the concept of the embodiments of the present invention, the following example illustrates the specific installation method of the radar 100:

[0078] First, the optical component 31 is installed on the structural component 32. Then, different clamps are used to hold the lens barrel 1 and the structural component 32 respectively, and the structural component 32 is moved to adjust its position until the optical module 3 is aligned with the emission module. At this time, the positioning part 11 is received in the positioning hole 321. Next, the glue needle is inserted into the groove 322 and glue is injected between the positioning hole 321 and the positioning part 11 until the glue between the positioning hole 321 and the positioning part 11 reaches a preset amount. At this time, the glue needle is extended out of the groove 322. Finally, the ultraviolet irradiation lamp is inserted into the groove 322 and the glue is irradiated between the positioning hole 321 and the positioning part 11 until the glue between the positioning hole 321 and the positioning part 11 reaches a preset irradiation time and the glue solidifies to form the adhesive part 33. At this time, the ultraviolet irradiation lamp is extended out of the groove 322.

[0079] This invention provides a radar 100, including a lens barrel 1 and an optical module 3. The lens barrel 1 is provided with a positioning part 11. The optical module 3 includes an optical component 31, a structural member 32, and an adhesive member 33. The structural member 32 is provided with a positioning hole 321. The positioning part 11 is inserted into the positioning hole 321. The adhesive member 33 fills the space between the inner wall of the positioning hole 321 and the outer wall of the positioning part 11, bonding and fixing the inner wall of the positioning hole 321 and the outer wall of the positioning part 11. The optical component 31 is disposed on the side of the structural member 32 facing the lens barrel 1. Through the above method, the cooperation between the positioning part 11 and the positioning hole 321 in this invention embodiment enables the optical module 3 to perform active and precise positioning with the optical lens module disposed in the lens barrel 1 to complete light adjustment.

[0080] The present invention also provides an embodiment of a detection device, which includes the radar 100 described above. For the specific structure and function of the radar 100, please refer to the above embodiments, which will not be repeated here.

[0081] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A radar, characterized in that, include: The lens barrel is equipped with a positioning part; An optical module includes an optical component, a structural component, and an adhesive component. The structural component has a positioning hole, and a positioning part is inserted into the positioning hole. The adhesive component fills the space between the inner wall of the positioning hole and the outer wall of the positioning part, and the adhesive component bonds and fixes the inner wall of the positioning hole and the outer wall of the positioning part. The optical component is disposed on the side of the structural component facing the lens barrel.

2. The radar according to claim 1, characterized in that, Along the first direction, the area of ​​the cross-section of the positioning part gradually decreases, and the cross-section of the positioning part is the cross-section of the positioning part along the second direction; Wherein, the first direction is the direction from the optical component to the structural component, and the second direction is perpendicular to the first direction.

3. The radar according to claim 2, characterized in that, Along the first direction, the cross-sectional area of ​​the positioning hole gradually decreases, and the cross-section of the positioning hole is the cross-section of the positioning hole along the second direction.

4. The radar according to claim 3, characterized in that, Along the first direction, the positioning part has a first taper, and the positioning hole has a second taper, wherein the first taper is equal to the second taper.

5. The radar according to claim 1, characterized in that, The structural component has a groove on the side opposite to the optical component, the positioning hole is connected to the bottom of the groove, and the portion of the positioning part that extends out of the positioning hole along the first direction is received in the groove. Wherein, the first direction is the direction from the optical component to the structural component.

6. The radar according to claim 5, characterized in that, The depth of the groove is greater than the height of the portion of the positioning part that extends out of the positioning hole.

7. The radar according to claim 5, characterized in that, Along the first direction, the area of ​​at least a portion of the cross-section of the groove gradually increases, and the cross-section of the groove is the cross-section of the groove along the second direction, which is perpendicular to the first direction.

8. The radar according to claim 7, characterized in that, The groove includes a first groove segment and a second groove segment, the first groove segment, the second groove segment and the positioning hole are connected in sequence, and the cross-sectional area of ​​the first groove segment gradually increases along the first direction. The cross-section of the first groove segment is the cross-section of the first groove segment along the second direction.

9. The radar according to claim 1, characterized in that, The outer wall of the positioning part is provided with a first laser-engraved surface, and the first laser-engraved surface is provided with a plurality of first laser-engraved grooves. At least one side of the adhesive is partially embedded in the plurality of first laser-engraved grooves; and / or, The inner wall of the positioning hole is provided with a second laser-engraved surface, and the second laser-engraved surface is provided with a plurality of second laser-engraved grooves. The other side of the adhesive is at least partially embedded in the plurality of second laser-engraved grooves.

10. The radar according to claim 1, characterized in that, The structural component has a protrusion on the side facing the lens barrel, the positioning hole passes through the protrusion, the optical component has a clearance hole, and the protrusion is inserted into the clearance hole.

11. The radar according to claim 10, characterized in that, The optical components include an optical main board, an optical chip, a light-shielding element, and a light-filtering element. The optical main board is disposed on the side of the structural component facing the lens barrel, the optical chip is disposed on the side of the optical main board facing the lens barrel, the light-shielding element covers the optical chip, the light-shielding element has a light-transmitting hole, the light-filtering element is disposed in the light-transmitting hole, and the clearance hole is disposed on the optical main board.

12. The radar according to claim 1, characterized in that, The lens barrel and structural components are both made of metal.

13. A detection device, characterized in that, Including the radar as described in any one of claims 1-12.

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