Damping support and lidar with same

Abstract

The application provides a damping support and a laser radar with the same, relates to the technical field of laser radar damping, and is designed to solve the problem that the existing laser radar is damaged due to the excessive vibration amplitude of a vibrating mirror during use. The damping support comprises, in sequence along the light path direction, a multi-path transceiving module mounting portion, a vibrating mirror module mounting portion and a multi-path mirror module mounting portion, wherein the multi-path transceiving module mounting portion is fixedly arranged relative to the shell of the laser radar, the multi-path transceiving module mounting portion is configured to mount a multi-path transceiving module, the vibrating mirror module mounting portion is configured to mount a MEMS vibrating mirror module, and the multi-path mirror module mounting portion is configured to mount a multi-path mirror module; the damping support further has a connecting bridge connecting the multi-path transceiving module mounting portion and the vibrating mirror module mounting portion. The application has a certain protective effect on the MEMS vibrating mirror module and solves the technical problem that the vibrating mirror is damaged due to the excessive vibration amplitude in the prior art.

Description

Technical Field

[0001] This invention relates to the field of laser radar vibration reduction technology, and more specifically, to a vibration reduction bracket and a laser radar having the same. Background Technology

[0002] As market demands for LiDAR increase, LiDAR technology is becoming increasingly mature. One type of LiDAR, favored by various industries, utilizes MEMS (Micro-Electro-Mechanical Systems) galvanometers combined with a multi-transmitter module. This type of LiDAR boasts advantages such as small size, light weight, high resolution, low cost, and compliance with national automotive standards, making it widely used in the field of autonomous driving.

[0003] However, since vehicles often experience bumps and vibrations during operation, the aforementioned lidar may be damaged due to excessive vibration amplitude during use. Summary of the Invention

[0004] The first objective of this invention is to provide a vibration damping bracket to solve the technical problem that the galvanometer of an existing lidar is damaged due to excessive vibration during use.

[0005] The vibration damping bracket provided by the present invention includes a multi-channel transceiver module mounting section, a galvanometer module mounting section, and a multi-channel reflector module mounting section arranged sequentially along the optical path direction. The multi-channel transceiver module mounting section is fixedly disposed relative to the housing of the lidar. The multi-channel transceiver module mounting section is configured to mount a multi-channel transceiver module, the galvanometer module mounting section is configured to mount a MEMS galvanometer module, and the multi-channel reflector module mounting section is configured to mount a multi-channel reflector module. The vibration damping bracket also includes a connecting bridge connecting the multi-channel transceiver module mounting section and the galvanometer module mounting section.

[0006] Furthermore, the number of connecting bridges is multiple, and the multiple connecting bridges are arranged at intervals along a set direction, wherein the set direction is perpendicular to the optical path direction.

[0007] Furthermore, the connecting bridge is sheet-shaped, and the thickness of the connecting bridge is s, wherein 1.5mm≤s≤2.5mm.

[0008] Furthermore, the connecting bridge is in the shape of a rectangular plate, the rectangular plate having a long side and a short side, the long side being used to connect to the multi-channel transceiver module mounting part or the galvanometer module mounting part, the length of the long side being a, the length of the short side being b, wherein 8mm≤a≤12mm, 3mm≤b≤6mm.

[0009] Furthermore, the vibration damping bracket also has a circuit board mounting part, which consists of two sets. The two sets of circuit board mounting parts are located on both sides of the multi-channel transceiver module mounting part along the set direction. The circuit board mounting part is configured to fix the circuit board of the lidar.

[0010] Furthermore, the vibration damping bracket is a sheet metal part, and the two sides of the multi-channel transceiver module mounting part are bent to form the circuit board mounting part, and the bending direction of the multi-channel transceiver module mounting part is towards the multi-channel transceiver module.

[0011] Furthermore, two sides of the multi-channel transceiver module mounting portion extend outward to form first mounting ears, which are used for fixed connection with the housing of the lidar; and / or, the multi-channel transceiver module mounting portion includes a plurality of transceiver module fixing plates arranged along the set direction, each of the transceiver module fixing plates being provided with a positioning post and a first fixing hole, the positioning post being configured to position the multi-channel transceiver module, and the first fixing hole being configured to fix the multi-channel transceiver module; and / or, the circuit board mounting portion includes a circuit board fixing plate, the circuit board fixing plate being provided with Multiple fixing posts are located on the surface of the fixing plate opposite to the multi-channel transceiver module, and the fixing posts are configured to fix the circuit board; and / or, the galvanometer module mounting part includes a galvanometer module fixing plate, the galvanometer module fixing plate having multiple second fixing holes, the multiple second fixing holes being configured to fix the MEMS galvanometer module; and / or, the multi-channel reflector module includes multiple reflector fixing plates arranged along the set direction, each of the reflector fixing plates having a third fixing hole, the third fixing hole being configured to fix the multi-channel reflector module.

[0012] Furthermore, the end face of the fixing post opposite to the circuit board fixing plate is provided with a threaded hole, and the circuit board is provided with an optical hole opposite to the threaded hole, and the screw can pass through the optical hole and be screwed into the threaded hole; and / or, the circuit board fixing plate is provided with a second mounting ear, the second mounting ear extends in a direction away from the multi-channel transceiver module and along the optical path direction, and the second mounting ear is spaced apart from the first mounting ear.

[0013] The beneficial effects of the vibration damping bracket of this invention are:

[0014] When the LiDAR uses the aforementioned vibration damping bracket, the LiDAR's multi-channel transceiver module is fixedly mounted on the multi-channel transceiver module mounting part of the vibration damping bracket, the LiDAR's MEMS galvanometer module is fixedly mounted on the galvanometer module mounting part of the vibration damping bracket, and the LiDAR's multi-channel reflector module is fixedly mounted on the multi-channel reflector module mounting part of the vibration damping bracket. At this time, along the optical path direction, the multi-channel transceiver module, the MEMS galvanometer module, and the multi-channel reflector module are arranged sequentially to meet the basic functions of the LiDAR.

[0015] When the lidar is subjected to bumps and vibrations (e.g., when the lidar is fixedly mounted on the vehicle body, and the vehicle body's bumps and vibrations are transmitted to the lidar during movement), the multi-channel transceiver module mounting part is relatively fixed to the lidar's housing, and the multi-channel transceiver module mounting part is connected to the galvanometer module mounting part through a connecting bridge. This allows the vibration occurring in the multi-channel transceiver module mounting part to be buffered at the connecting bridge, preventing the vibration impact of the multi-channel transceiver module mounting part from being transmitted to the galvanometer module mounting part. This effectively prevents the transmission of vibration to the MEMS galvanometer module and provides a certain degree of protection for the MEMS galvanometer module, solving the technical problem in the prior art where the galvanometer is damaged due to excessive vibration amplitude.

[0016] The second objective of this invention is to provide a lidar that solves the technical problem that existing lidars suffer damage to the galvanometer due to excessive vibration amplitude during use.

[0017] The lidar provided by this invention includes a housing and an inner module disposed inside the housing. The inner module includes a multi-channel transceiver module, a MEMS galvanometer module, a multi-channel reflector module, a circuit board, and the aforementioned vibration damping bracket. The multi-channel transceiver module is fixedly disposed on the multi-channel transceiver module mounting part of the vibration damping bracket. The MEMS galvanometer module is fixedly disposed on the galvanometer module mounting part of the vibration damping bracket. The multi-channel reflector module is fixedly disposed on the multi-channel reflector module mounting part of the vibration damping bracket. The circuit board is fixedly disposed on the circuit board mounting part of the vibration damping bracket. The vibration damping bracket is fixedly connected to the housing through the multi-channel transceiver module mounting part.

[0018] Furthermore, the lidar also includes a thermally conductive silicone pad, which is disposed between the inner liner module and the inner surface of the outer shell.

[0019] The beneficial effects of the lidar of this invention are:

[0020] By incorporating the aforementioned vibration damping bracket into the lidar, the lidar acquires all the advantages of the aforementioned vibration damping bracket, which will not be elaborated upon here.

[0021] In addition, the above configuration allows for the following assembly methods when assembling a lidar: the multi-channel transceiver module, MEMS galvanometer module, multi-channel reflector module, and circuit board can be installed on the vibration damping bracket to form an inner module. Then, the inner module can be installed into the lidar housing, achieving modular assembly of the lidar and improving assembly efficiency. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0023] Figure 1 This is a top view of the vibration damping bracket provided in an embodiment of the present invention;

[0024] Figure 2 This is a three-dimensional structural schematic diagram of the vibration damping bracket provided in an embodiment of the present invention;

[0025] Figure 3 This is an assembly diagram of the vibration damping bracket provided in an embodiment of the present invention.

[0026] Explanation of reference numerals in the attached figures:

[0027] 010-Vibration damping bracket; 020-Galvanometer bracket; 030-Reflector bracket;

[0028] 100 - Multi-channel transceiver module mounting section; 200 - Galvanometer module mounting section; 300 - Multi-channel reflector module mounting section; 400 - Connecting bridge; 500 - Circuit board mounting section;

[0029] 110 - First mounting ear; 120 - Transceiver module fixing plate; 130 - Positioning post; 140 - First fixing hole;

[0030] 210 - Galvanometer module mounting plate; 220 - Second mounting hole;

[0031] 310 - Reflector mounting plate; 320 - Third mounting hole;

[0032] 510 - Circuit board mounting plate; 520 - Mounting post; 521 - Threaded hole; 530 - Second mounting ear. Detailed Implementation

[0033] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0034] Figure 1 This is a top view of the vibration damping bracket 010 provided in this embodiment. Figure 1 As shown, this embodiment provides a vibration damping bracket 010, which has a multi-channel transceiver module mounting part 100, a galvanometer module mounting part 200, and a multi-channel reflector module mounting part 300 arranged sequentially along the optical path direction. The multi-channel transceiver module mounting part 100 is fixedly disposed relative to the housing of the lidar and is configured to mount a multi-channel transceiver module. The galvanometer module mounting part 200 is configured to mount a MEMS galvanometer module, and the multi-channel reflector module mounting part 300 is configured to mount a multi-channel reflector module. The vibration damping bracket 010 also has a connecting bridge 400, which connects the multi-channel transceiver module mounting part 100 and the galvanometer module mounting part 200.

[0035] When the lidar uses the aforementioned vibration damping bracket 010, the lidar's multi-channel transceiver module is fixedly mounted on the multi-channel transceiver module fixing part of the vibration damping bracket 010, the lidar's MEMS galvanometer module is fixedly mounted on the galvanometer module mounting part 200 of the vibration damping bracket 010, and the lidar's multi-channel reflector module is fixedly mounted on the multi-channel reflector module mounting part 300 of the vibration damping bracket 010. At this time, along the optical path direction, the multi-channel transceiver module, the MEMS galvanometer module, and the multi-channel reflector module are arranged sequentially to meet the basic functions of the lidar.

[0036] When the lidar is subjected to bumps and vibrations (e.g., when the lidar is fixedly installed on the vehicle body, and the bumps and vibrations of the vehicle body are transmitted to the lidar during vehicle movement), the vibrations occurring in the multi-channel transceiver module mounting part 100 are buffered at the connecting bridge 400 because the multi-channel transceiver module mounting part 100 is relatively fixed to the lidar housing, and the multi-channel transceiver module mounting part 100 and the galvanometer module mounting part 200 are connected by a connecting bridge 400. This prevents the vibration impact of the multi-channel transceiver module mounting part 100 from being transmitted to the galvanometer module mounting part 200, effectively preventing the transmission of vibration to the MEMS galvanometer module, and providing a certain degree of protection for the MEMS galvanometer module. This solves the technical problem in the prior art where the galvanometer is damaged due to excessive vibration amplitude.

[0037] Figure 2 This is a three-dimensional structural schematic diagram of the vibration damping bracket 010 provided in this embodiment. Please continue to refer to... Figure 1 and combined Figure 2In this embodiment, there are two connecting bridges 400, which are arranged at intervals along a set direction, wherein the set direction is perpendicular to the optical path direction.

[0038] Figure 1 In the diagram, the direction indicated by arrow X represents the optical path direction, and the direction indicated by arrow Y represents the set direction.

[0039] By providing two connecting bridges 400 spaced apart along a set direction between the multi-channel transceiver module mounting section 100 and the galvanometer module mounting section 200, on the one hand, the vibration transmitted to the galvanometer module mounting section 200 can be effectively weakened, thus buffering and reducing vibration of the galvanometer; on the other hand, the connection strength between the multi-channel transceiver module mounting section 100 and the galvanometer module mounting section 200 can be increased, thus avoiding connection failure due to the breakage of one of the connecting bridges 400.

[0040] In other embodiments, the connecting bridge 400 may also take other forms, such as three.

[0041] Please continue to refer to Figure 2 In this embodiment, the connecting bridge 400 is sheet-shaped, and the thickness of the connecting bridge 400 is s, wherein 1.5mm≤s≤2.5mm.

[0042] This type of connecting bridge 400 is not only simple in structure and easy to manufacture, but also, when the lidar housing is subjected to impact vibration, the sheet-like connecting bridge 400 can effectively isolate vibration and prevent the vibration from being transmitted to the galvanometer module mounting part 200.

[0043] Please continue to refer to Figure 1 and Figure 2 In this embodiment, the connecting bridge 400 is in the shape of a rectangular plate. Specifically, the rectangular plate has a long side and a short side. The long side is used to connect to the multi-channel transceiver module mounting part 100 or the galvanometer module mounting part 200. The length of the long side is a, and the length of the short side is b, where 8mm≤a≤12mm and 3mm≤b≤6mm.

[0044] The above-mentioned configuration not only provides effective buffering and vibration reduction for the galvanometer module mounting section 200, but also ensures the connection strength between the multi-channel transceiver module mounting section 100 and the galvanometer module mounting section 200, reducing the risk of the connecting bridge 400 breaking.

[0045] Please continue to refer to Figure 1 and Figure 2In this embodiment, the multi-channel transceiver module mounting part 100 includes five transceiver module fixing plates 120 arranged along a set direction. Each transceiver module fixing plate 120 is provided with a positioning post 130 and a first fixing hole 140. The positioning post 130 is configured to position the multi-channel transceiver module, and the first fixing hole 140 is configured to fix the multi-channel transceiver module. One of the two connecting bridges 400 is connected between the second transceiver module fixing plate 120 and the galvanometer module mounting part 200, and the other of the two connecting bridges 400 is connected between the fourth transceiver module fixing plate 120 and the galvanometer module mounting part 200.

[0046] During assembly, the multi-channel transceiver modules can be installed on the respective transceiver module mounting plates 120 according to preset installation positions. During this process, positioning pins 130 are used to position each transceiver module. Specifically, positioning holes can be provided on each transceiver module, and the positioning holes and positioning pins 130 are used to position each transceiver module on its corresponding mounting plate 120. Afterwards, the optical path direction can be adjusted by rotating the angle of each transceiver module. After this step, the first fixing holes 140 are used to fix each transceiver module to the transceiver module mounting plate 120. Specifically, threaded connectors can be provided on each transceiver module, and the engagement of the threaded connectors with the first fixing holes 140 is used to fix each transceiver module.

[0047] With the above settings, not only can the multi-channel transceiver module be reliably fixed, but the position of the connecting bridge 400 is such that the overall structure of the vibration damping bracket 010 will not be too loose due to the large gap between the two connecting bridges 400, nor will the buffer stiffness be too small due to the small gap between the two connecting bridges 400.

[0048] It should be noted that how each transceiver module is fixed on the transceiver module fixing plate 120 by the cooperation of the threaded connector with the first fixing hole 140 is something that those skilled in the art can obtain based on existing technology. This embodiment does not improve on this, so it will not be described in detail here.

[0049] It should also be noted that each transceiver module mounting plate 120 has an installation height adapted to the multi-channel transceiver module. In other words, in this embodiment, the installation height of each transceiver module mounting plate 120 is designed according to the optical path transceiver requirements of the multi-channel transceiver module. The different heights are determined by the emitting light source of the multi-channel transceiver module, and the staff can adjust them according to the actual situation.

[0050] Please continue to refer to Figure 1 and Figure 2In this embodiment, the vibration damping bracket 010 also has a circuit board mounting part 500. Specifically, there are two sets of circuit board mounting parts 500, which are respectively located on both sides of the multi-channel transceiver module mounting part 100 along a set direction. The circuit board mounting part 500 is configured to fix the circuit board of the laser radar.

[0051] The above settings enable a fixed connection between the circuit board and the vibration damping bracket 010, which is beneficial for the modular assembly of the lidar.

[0052] Please continue to refer to Figure 2 In this embodiment, the circuit board mounting part 500 includes a circuit board fixing plate 510, wherein the circuit board fixing plate 510 is provided with three fixing posts 520. The three fixing posts 520 are located on the surface of the fixing plate opposite to the multi-channel transceiver module, and the fixing posts 520 are configured to fix the circuit board. This arrangement can achieve stable fixing of the circuit board, thereby ensuring the reliability of the lidar operation.

[0053] Please continue to refer to Figure 2 In this embodiment, a threaded hole 521 is provided on the end face of the fixing post 520 facing away from the circuit board fixing plate 510. Correspondingly, a light hole opposite to the threaded hole 521 can be provided on the circuit board, and the screw can pass through the light hole and be screwed into the threaded hole 521. This arrangement of fixing the circuit board to the circuit board fixing plate 510 with screws is simple in structure and reliable in connection.

[0054] It should be noted that in this embodiment, only three fixing posts 520 are used as an example. It can be understood that in actual use, the staff can reasonably select the number and distribution of fixing posts 520 according to the specific situation of the circuit board.

[0055] In this embodiment, the fixing post 520 is welded and fixed to the circuit board fixing plate 510.

[0056] Please continue to refer to Figure 2 In this embodiment, the vibration damping bracket 010 is a sheet metal part. Specifically, the two sides of the multi-channel transceiver module mounting part 100 are bent to form the circuit board mounting part 500, and the bending direction of the multi-channel transceiver module mounting part 100 is towards the multi-channel transceiver module.

[0057] by Figure 2 Taking a medium-angle view as an example, the two sides of the multi-channel transceiver module mounting section 100 are bent upwards to form the circuit board mounting section 500. This method of forming the circuit board mounting section 500 provides a reliable mounting base for the circuit board and ensures that after assembly, the circuit board, multi-channel transceiver module, MEMS galvanometer module, and multi-channel reflector module are all located on the upper part of the vibration damping bracket 010, without excessively occupying the space below the vibration damping bracket 010.

[0058] In addition, the use of sheet metal components results in lower costs. The sheet metal components can be made of cold-rolled steel or stainless steel. Compared to aluminum alloy, these materials can effectively elastically deform at the connecting bridge 400 when encountering large bumps and impacts, thus buffering the MEMS galvanometer module.

[0059] Please continue to refer to Figure 2 In this embodiment, two sides of the multi-channel transceiver module mounting portion 100 extend outward to form first mounting ears 110, which are used for fixed connection with the housing of the lidar. This arrangement facilitates the connection between the vibration damping bracket 010 and the housing.

[0060] Please continue to refer to Figure 2 In this embodiment, the circuit board fixing plate 510 is provided with a second mounting ear 530. The second mounting ear 530 extends away from the multi-channel transceiver module and is spaced apart from the first mounting ear 110 along the optical path direction.

[0061] When assembling the vibration damping bracket 010 to the housing, the first mounting ear 110 and the second mounting ear 530 of the vibration damping bracket 010 can be connected to the housing simultaneously. This arrangement not only increases the number of connection points between the vibration damping bracket 010 and the housing, but also increases the distribution area of ​​the connection points between the vibration damping bracket 010 and the housing, ensuring the reliability of the connection between the vibration damping bracket 010 and the housing.

[0062] In this embodiment, both the first mounting ear 110 and the second mounting ear 530 are provided with mounting holes, and studs can be fixedly installed on the inner surface of the outer shell. The position of the studs corresponds to the position of the mounting holes provided in the first mounting ear 110 and the second mounting ear 530. After the studs pass through the corresponding mounting holes, they are locked by nuts, thereby realizing the connection between the vibration damping bracket 010 and the outer shell.

[0063] Please continue to refer to Figure 2 In this embodiment, the galvanometer module mounting part 200 includes a galvanometer module fixing plate 210, wherein the galvanometer module fixing plate 210 has a plurality of second fixing holes 220, which are configured to fix the MEMS galvanometer module. Through this setting, a reliable connection between the MEMS galvanometer module and the vibration damping bracket 010 can be achieved.

[0064] It should be noted that a connection hole can be provided on the MEMS galvanometer module that is opposite to the second fixing hole 220. The MEMS galvanometer module can be fixed on the vibration damping bracket 010 by using a threaded connector that passes through the connection hole and the second fixing hole 220.

[0065] Figure 3This is an assembly diagram of the vibration damping bracket 010 provided in this embodiment. Figure 3 As shown, the MEMS galvanometer module includes a galvanometer bracket 020 and a galvanometer (not shown in the figure). The galvanometer bracket 020 is fixedly connected to the galvanometer module fixing plate 210, and the galvanometer is mounted on the galvanometer bracket 020.

[0066] Please continue to refer to Figure 2 In this embodiment, the multi-channel reflector module includes multiple reflector fixing plates 310 arranged along a set direction. Each reflector fixing plate 310 has a third fixing hole 320, which is configured to fix the multi-channel reflector module. This configuration enables a reliable connection between the multi-channel reflector module and the vibration damping bracket 010.

[0067] Please continue to refer to Figure 3 In this embodiment, each reflector module includes a reflector bracket 030, which is fixedly connected to a reflector fixing plate 310. A reflector (not shown in the figure) is mounted on the reflector bracket 030. A connection hole corresponding to the third fixing hole 320 can be provided in the reflector bracket 030. A threaded connector passing through this connection hole and the third fixing hole 320 is used to fix the reflector bracket 030 to the reflector fixing plate 310.

[0068] In addition, this embodiment also provides a lidar, including a housing and an inner module disposed inside the housing. The inner module includes a multi-channel transceiver module, a MEMS galvanometer module, a multi-channel reflector module, a circuit board, and the aforementioned vibration damping bracket 010. The multi-channel transceiver module is fixedly disposed in the multi-channel transceiver module mounting part 100 of the vibration damping bracket 010, the MEMS galvanometer module is fixedly disposed in the galvanometer module mounting part 200 of the vibration damping bracket 010, the multi-channel reflector module is fixedly disposed in the multi-channel reflector module mounting part 300 of the vibration damping bracket 010, and the circuit board is fixedly disposed in the circuit board mounting part 500 of the vibration damping bracket 010. The vibration damping bracket 010 is fixedly connected to the housing through the multi-channel transceiver module mounting part 100.

[0069] By incorporating the aforementioned vibration damping bracket 010 into the lidar, the lidar acquires all the advantages of the aforementioned vibration damping bracket 010, which will not be elaborated upon here.

[0070] In addition, the above-mentioned configuration also allows the multi-channel transceiver module, MEMS galvanometer module, multi-channel reflector module and circuit board to be installed on the vibration damping bracket 010 during the assembly of the lidar, forming an inner module. Then, the inner module is installed into the lidar housing, realizing modular assembly of the lidar and thus improving the assembly efficiency of the lidar.

[0071] In this embodiment, the lidar may further include a thermally conductive silicone pad, specifically, the thermally conductive silicone pad is disposed between the inner liner module and the inner surface of the outer shell. This arrangement serves two purposes: firstly, it allows for the timely dissipation of heat generated during the operation of the inner liner module, preventing it from overheating; secondly, it provides overall cushioning and vibration damping for the inner liner module.

[0072] The assembly process of this lidar is as follows: First, the multi-channel transceiver module is installed on the multi-channel transceiver module mounting part 100 of the vibration damping bracket 010, and then the galvanometer is installed on the galvanometer bracket 020 to form a MEMS galvanometer module; then, the MEMS galvanometer module is installed on the galvanometer module mounting part 200 of the vibration damping bracket 010; next, the multi-channel reflector module is installed on the multi-channel reflector module mounting part 300 of the vibration damping bracket 010, and the angle of the multi-channel reflector module is adjusted by adjusting the reflector angle to adjust the optical path to the required direction; subsequently, the multi-channel reflector module is fixed; finally, all the circuit boards of the lidar are installed on the circuit board mounting part 500 of the vibration damping bracket 010. At this time, the above structure forms the inner module of the lidar. Installing this inner module inside the lidar shell completes the assembly of the lidar.

[0073] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

[0074] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the term "comprising" or any other variations thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0075] In the above embodiments, descriptions of directions such as "up", "down", and "side" are based on the accompanying drawings.

[0076] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A lidar, characterized in that, The device includes an outer shell and an inner liner module disposed inside the outer shell. The inner liner module includes a multi-channel transceiver module, a MEMS galvanometer module, a multi-channel reflector module, a circuit board, and a vibration damping bracket. The multi-channel transceiver module is fixedly disposed in the multi-channel transceiver module mounting part (100) of the vibration damping bracket. The MEMS galvanometer module is fixedly disposed in the galvanometer module mounting part (200) of the vibration damping bracket. The multi-channel reflector module is fixedly disposed in the multi-channel reflector module mounting part (300) of the vibration damping bracket. The circuit board is fixedly disposed in the circuit board mounting part (500) of the vibration damping bracket. The vibration damping bracket is fixedly connected to the outer shell through the multi-channel transceiver module mounting part (100). The vibration damping bracket is a sheet metal part. The vibration damping bracket includes a multi-channel transceiver module mounting part (100), a galvanometer module mounting part (200), and a multi-channel reflector module mounting part (300) arranged sequentially along the optical path direction. The multi-channel transceiver module mounting part (100) is fixedly disposed relative to the housing of the lidar. The multi-channel transceiver module mounting part (100) is configured to install a multi-channel transceiver module. The galvanometer module mounting part (200) is configured to install a MEMS galvanometer module. The multi-channel reflector module mounting part (300) is configured to install a multi-channel reflector module. The vibration damping bracket also has a connecting bridge (400) that connects the multi-channel transceiver module mounting part (100) and the galvanometer module mounting part (200).

2. The lidar according to claim 1, characterized in that, The lidar also includes a thermally conductive silicone pad, which is disposed between the inner liner module and the inner surface of the outer shell.

3. The lidar according to claim 1, characterized in that, The number of the connecting bridges (400) is multiple, and the multiple connecting bridges (400) are arranged at intervals along a set direction, wherein the set direction is perpendicular to the optical path direction.

4. The lidar according to claim 1, characterized in that, The connecting bridge (400) is sheet-shaped, and the thickness of the connecting bridge (400) is s, wherein 1.5mm≤s≤2.5mm.

5. The lidar according to claim 4, characterized in that, The connecting bridge (400) is in the shape of a rectangular sheet, which has a long side and a short side. The long side is used to connect to the multi-channel transceiver module mounting part (100) or the galvanometer module mounting part (200). The length of the long side is a, and the length of the short side is b, wherein 8mm≤a≤12mm and 3mm≤b≤6mm.

6. The lidar according to claim 3, characterized in that, The vibration damping bracket also has a circuit board mounting part (500), which consists of two sets. The two sets of circuit board mounting parts (500) are respectively located on both sides of the multi-channel transceiver module mounting part (100) along the set direction. The circuit board mounting part (500) is configured to fix the circuit board of the laser radar.

7. The lidar according to claim 6, characterized in that, The two sides of the multi-channel transceiver module mounting part (100) are bent to form the circuit board mounting part (500), and the bending direction of the multi-channel transceiver module mounting part (100) is towards the multi-channel transceiver module.

8. The lidar according to claim 7, characterized in that, The two sides of the multi-channel transceiver module mounting part (100) extend outward to form first mounting ears (110), which are used to fix the housing of the lidar; and / or, the multi-channel transceiver module mounting part (100) includes a plurality of transceiver module fixing plates (120) arranged along the set direction, each of the transceiver module fixing plates (120) is provided with a positioning post (130) and a first fixing hole (140), the positioning post (130) is configured to position the multi-channel transceiver module, and the first fixing hole (140) is configured to fix the multi-channel transceiver module. ; and / or, the circuit board mounting portion (500) includes a circuit board fixing plate (510), the circuit board fixing plate (510) is provided with a plurality of fixing posts (520), the fixing posts (520) are located on the surface of the fixing plate opposite to the multi-channel transceiver module, and the fixing posts (520) are configured to fix the circuit board; and / or, the galvanometer module mounting portion (200) includes a galvanometer module fixing plate (210), the galvanometer module fixing plate (210) is provided with a plurality of second fixing holes (220), and the plurality of second fixing holes (220) are configured to fix the MEMS galvanometer module; And / or, the multi-channel reflector module includes multiple reflector fixing plates (310) arranged along the set direction, each of the reflector fixing plates (310) having a third fixing hole (320), the third fixing hole (320) being configured to fix the multi-channel reflector module.

9. The lidar according to claim 8, characterized in that, The end face of the fixing post (520) facing away from the circuit board fixing plate (510) is provided with a threaded hole (521), and the circuit board is provided with an optical hole opposite to the threaded hole (521). The screw can pass through the optical hole and be screwed into the threaded hole (521); and / or, the circuit board fixing plate (510) is provided with a second mounting ear (530), the second mounting ear (530) extends in a direction away from the multi-channel transceiver module and along the optical path direction, the second mounting ear (530) is spaced apart from the first mounting ear (110).

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