Wireless power supply assembly of laser radar, manufacturing method of wireless power supply assembly and laser radar

Abstract

The invention discloses a wireless power supply assembly of a laser radar, a manufacturing method of the wireless power supply assembly and the laser radar. The circuit board is provided with at least one contact elastic piece on the surface facing the fixed seat, the circuit board and the fixed seat are fixedly connected at a fastening point, and the contact elastic piece is arranged in the surface of the circuit board. The distance between the fastening point and the contact elastic sheet is determined according to the elastic potential energy of the contact elastic sheet and the rigidity of the circuit board. The distance between the fastening point and the contact elastic piece is determined according to the elastic potential energy of the contact elastic piece and the rigidity of the circuit board, the risk that the contact elastic piece is disengaged can be effectively reduced, the reliability of surface contact of the contact elastic piece and the fixing base is guaranteed, the probability of deformation and warping of the circuit board can be effectively reduced, and the service life of the circuit board is prolonged. Therefore, the reliability of the circuit board and the surface elements thereof is improved.

Description

Technical Field

[0001] The present disclosure relates to laser detection, and in particular to a wireless power supply component and a manufacturing method of a laser radar and a laser radar. Background Art

[0002] LiDAR is a commonly used distance measurement sensor with the characteristics of long detection distance, high resolution, and low environmental interference. It is widely used in intelligent robots, drones, unmanned driving and other fields. In recent years, autonomous driving technology has developed rapidly, and LiDAR, as its core sensor for distance perception, has become indispensable.

[0003] With the development of automobile intelligence and autonomous driving technology, LiDAR has become the main sensor for autonomous driving. The use of wireless power supply technology in LiDAR has many technical advantages, such as reducing wiring and reducing maintenance difficulty.

[0004] How to ensure the continued reliability of the wireless power supply components used in LiDAR after they are manufactured and during the long-term use of the LiDAR is a technical problem that needs to be solved. Summary of the invention

[0005] The problem solved by the present disclosure is how to improve the reliability of wireless power supply components in lidar.

[0006] In order to solve the above problems, the present disclosure provides a wireless power supply component for a laser radar, comprising:

[0007] A fixing base, wherein the fixing base is arranged around the rotating shaft of the laser radar; a circuit board, wherein the circuit board is arranged around the rotating shaft of the laser radar, the circuit board is located on one side of the fixing base, and the surface of the circuit board facing the fixing base has at least one contact spring, and the contact spring contacts and squeezes the surface of the fixing base so that the contact spring has elastic potential energy; the circuit board and the fixing base are fixedly connected at a fastening point, and within the surface of the circuit board, the distance between the fastening point and the contact spring is determined according to the elastic potential energy of the contact spring and the stiffness of the circuit board.

[0008] Optionally, the fixing seat includes: a main body; a contact boss, the contact boss is located on the surface of the main body facing the circuit board, and the top surface of the contact boss is in contact with the contact spring; a fastening boss, the fastening boss is located on the surface of the main body facing the circuit board, and the position of the fastening boss corresponds to the position of the fastening point.

[0009] Optionally, the fastening boss contacts the surface of the circuit board.

[0010] Optionally, along the radial direction of the rotation axis of the laser radar, the fastening boss is located between the contact boss and the rotation axis.

[0011] Optionally, along the direction pointing toward the circuit board, the top surface of the fastening boss is located between the top surface of the contact boss and the surface of the circuit board.

[0012] Optionally, the distance between the top surface of the fastening boss and the top surface of the contact boss is determined according to the elastic potential energy of the contact spring.

[0013] Optionally, the circuit board has a plurality of contact springs, and the plurality of contact springs are distributed around the rotating shaft of the laser radar; and the contact boss extends along the circumference of the rotating shaft.

[0014] Optionally, the contact boss surrounds the rotating shaft.

[0015] Optionally, there are a plurality of fastening points between the circuit board and the fixing seat; the plurality of fastening points are distributed around the rotating shaft.

[0016] Optionally, the fixing seat further includes: a bearing boss, the bearing boss is located on the surface of the body facing the circuit board, and the bearing boss is located on one side of the fastening boss.

[0017] Optionally, the supporting boss extends along the circumference of the rotating shaft.

[0018] Optionally, the bearing boss surrounds the rotating shaft.

[0019] Optionally, the top surface of the bearing boss is flush with the top surface of the fastening boss.

[0020] Optionally, the bearing boss is located on a side of the fastening boss away from the contact boss.

[0021] Optionally, it also includes: a magnetic core, which is located on a side of the circuit board away from the fixing seat.

[0022] Optionally, a surface of the magnetic core facing the circuit board has an avoidance hole, and the position of the avoidance hole corresponds to the position of the fastening point.

[0023] Optionally, along the thickness direction, the avoidance hole passes through the magnetic core.

[0024] Optionally, a surface of the magnetic core facing away from the circuit board has a groove for arranging the coil; in the surface of the magnetic core, a projection of the fastening point is located within the range of the projection of the groove.

[0025] Accordingly, the present invention provides a laser radar, comprising:

[0026] A first power supply module and a second power supply module, wherein the first power supply module and the second power supply module are separated from each other; at least one of the first power supply module and the second power supply module comprises a wireless power supply component, wherein the wireless power supply component comprises: a fixing seat, wherein the fixing seat is arranged around the rotating shaft of the laser radar; a circuit board, wherein the circuit board is arranged around the rotating shaft of the laser radar, wherein the circuit board is located on one side of the fixing seat, wherein the surface of the circuit board facing the fixing seat has at least one contact spring, wherein the contact spring contacts and squeezes the surface of the fixing seat so that the contact spring has elastic potential energy; the circuit board and the fixing seat are fixedly connected at a fastening point, wherein within the surface of the circuit board, the distance between the fastening point and the contact spring is determined according to the elastic potential energy of the contact spring and the stiffness of the circuit board.

[0027] Optionally, it also includes: a base shell; a rotating shaft, the rotating shaft is fixed relative to the base shell; the first power supply module is fixed relative to the rotating shaft, and the second power supply module rotates around the rotating shaft.

[0028] In addition, the present invention also provides a method for manufacturing a wireless power supply component for a laser radar, comprising:

[0029] The fixing seat and the circuit board are fastened together; after the fixing seat and the circuit board are fastened together, a first glue layer is formed on the surface of the circuit board; a second glue layer is formed in the groove of the magnetic core; after the second glue layer is formed in the groove of the magnetic core, a coil is arranged in the groove; and the first glue layer and the second glue layer are cured.

[0030] Optionally, in the step of forming the second glue layer in the groove of the magnetic core, an avoidance hole penetrating the magnetic core in the thickness direction is avoided.

[0031] Optionally, in the step of curing the first adhesive layer and the second adhesive layer, the first adhesive layer and the second adhesive layer are cured at the same time.

[0032] Optionally, in the step of fastening the fixing seat and the circuit board together, the fixing seat and the circuit board are fastened together by fastening bolts, and the contact spring sheet on the circuit board contacts and squeezes the surface of the fixing seat so that the contact spring sheet has elastic potential energy; the fastening bolts pass through the avoidance hole of the magnetic core.

[0033] Compared with the prior art, the technical solution disclosed in the present invention has the following advantages:

[0034] In the technical solution disclosed in the present invention, the distance between the fastening point and the contact spring piece in the surface of the circuit board is determined according to the elastic potential energy of the contact spring piece and the stiffness of the circuit board. Determining the distance between the fastening point and the contact spring piece according to the elastic potential energy of the contact spring piece and the stiffness of the circuit board can effectively reduce the risk of the contact spring piece being disengaged, thereby ensuring the reliability of the surface contact between the contact spring piece and the fixing seat, and can also effectively reduce the probability of deformation and warping of the circuit board, thereby improving the reliability of the circuit board and its surface components.

[0035] In the optional solution disclosed herein, the wireless power supply component further includes: a magnetic core, which is located on a side of the circuit board away from the fixing seat. When the wireless power supply component is applied to a vehicle-mounted laser radar, the reasonable selection of the fastening point position can effectively overcome the pulling force of the magnetic core on the circuit board during the acceleration of the movement, can effectively reduce the possibility of deformation of the circuit board, and is conducive to improving the reliability of the laser radar. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without creative work. The drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. They are used together with the embodiments of the present disclosure to explain the present disclosure and do not constitute a limitation on the present disclosure. In the drawings:

[0037] Figure 1 It is a schematic diagram of the exploded structure of an embodiment of a wireless power supply component of a laser radar disclosed in the present invention;

[0038] Figure 2 yes Figure 1 A schematic diagram of an exploded structure of the wireless power supply component embodiment of the laser radar shown in another angle;

[0039] Figure 3 yes Figure 1 and Figure 2 A schematic diagram of a top view of a surface of a circuit board facing the fixing seat in the embodiment of the wireless power supply assembly;

[0040] Figure 4 yes Figure 3 A schematic diagram of a cross-sectional result along line B1B2 in an embodiment of a wireless power supply component of the laser radar shown;

[0041] Figure 5 is a schematic diagram of a top view of the fixing base 110 in the embodiment of the wireless power supply assembly;

[0042] Figure 6 yes Figure 5 A schematic cross-sectional view of the fixing seat 110 along line A1A2 is shown;

[0043] Figure 7 yes Figure 1 A schematic diagram of a top view of the structure of a magnetic core in an embodiment of a wireless power supply component of a laser radar;

[0044] Figure 8 is a schematic cross-sectional structural diagram of another embodiment of the wireless power supply component of the laser radar disclosed in the present invention;

[0045] Fig. 9 is a functional block diagram of an embodiment of the laser radar disclosed herein;

[0046] Fig.10 It is a flow chart of an embodiment of a method for manufacturing a wireless power supply component for a laser radar disclosed in the present invention. DETAILED DESCRIPTION

[0047] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present disclosure. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0048] In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or position relationship according to the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present disclosure and simplifying the description, and does 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 of the present disclosure. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present disclosure, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0049] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "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, an electrical connection, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0050] In the present disclosure, unless otherwise expressly specified and limited, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being “above”, “above”, and “above” a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0051] The disclosure below provides many different embodiments or examples to realize different structures of the present disclosure. In order to simplify the disclosure of the present disclosure, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present disclosure. In addition, the present disclosure can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present disclosure provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0052] As can be seen from the background technology, the wireless power supply components used in LiDAR need to ensure reliability.

[0053] In order to solve the technical problem, the present disclosure provides a wireless power supply component for a laser radar, comprising:

[0054] A fixing base, wherein the fixing base is arranged around the rotating shaft of the laser radar; a circuit board, wherein the circuit board is arranged around the rotating shaft of the laser radar, the circuit board is located on one side of the fixing base, and the surface of the circuit board facing the fixing base has at least one contact spring, and the contact spring contacts and squeezes the surface of the fixing base so that the contact spring has elastic potential energy; the circuit board and the fixing base are fixedly connected at a fastening point, and within the surface of the circuit board, the distance between the fastening point and the contact spring is determined according to the elastic potential energy of the contact spring and the stiffness of the circuit board.

[0055] In the technical solution disclosed in the present invention, the distance between the fastening point and the contact spring is determined according to the elastic potential energy of the contact spring and the stiffness of the circuit board in the surface of the circuit board. The distance between the fastening point and the contact spring is determined according to the elastic potential energy of the contact spring and the stiffness of the circuit board, which can effectively reduce the risk of the contact spring being disengaged, thereby ensuring the reliability of the surface contact between the contact spring and the fixing seat, and can also effectively reduce the probability of deformation and warping of the circuit board, thereby improving the reliability of the circuit board and its surface components.

[0056] In order to make the above-mentioned objects, features and advantages of the present disclosure more obvious and easy to understand, the specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0057] refer to Figure 1 , showing a schematic diagram of the exploded structure of an embodiment of a wireless power supply component of the laser radar disclosed in the present invention.

[0058] The wireless power supply component includes: a fixing base 110, which is arranged around the rotating axis of the laser radar; a circuit board 120, which is arranged around the rotating axis of the laser radar, and the circuit board 120 is located on one side of the fixing base 110, and the circuit board 120 has at least one contact spring 121 on the surface of the fixing base 110, and the contact spring 121 contacts and squeezes the surface of the fixing base 110 so that the contact spring 121 has elastic potential energy; the circuit board 120 and the fixing base 110 are fixedly connected at a fastening point 130, and within the surface of the circuit board 120, the distance between the fastening point 130 and the contact spring 121 is determined according to the elastic potential energy of the contact spring 121 and the stiffness of the circuit board 120.

[0059] By determining the distance between the fastening point 130 and the contact spring 121 according to the elastic potential energy of the contact spring 121 and the stiffness of the circuit board 120, the risk of the contact spring 121 being detached can be effectively reduced to ensure the reliability of the surface contact between the contact spring 121 and the fixing seat 110. The probability of deformation and warping of the circuit board 120 can also be effectively reduced to improve the reliability of the circuit board 120 and its surface components.

[0060] The specific technical solution of the wireless power supply component embodiment is described in detail below with reference to the accompanying drawings.

[0061] The fixing seat 110 is used to position and fix the wireless power supply component.

[0062] The fixing seat 110 is arranged around the rotation axis of the laser radar. Specifically, the fixing seat 110 extends along the circumference of the rotation axis of the laser radar to surround the rotation axis of the laser radar.

[0063] In some specific embodiments, the wireless power supply assembly is applied to a mechanical rotating laser radar. The fixing seat 110 extends along the circumference of the rotating shaft of the laser radar. Figure 1 and Figure 2 As shown, the fixing seat 110 is in the shape of a ring, and the rotating axis of the laser radar passes through the center circle of the ring.

[0064] In some embodiments of the present disclosure, the laser radar is a mechanical rotating laser radar, and the fixing base 110 may be a turntable, that is, the fixing base 110 rotates around the rotation axis of the laser radar. In other embodiments of the present disclosure, the laser radar is a mechanical rotating laser radar, and the fixing base 110 may also be a supporting base, and the fixing base 110 is fixedly arranged relative to the rotation axis of the laser radar.

[0065] The circuit board 120 is used to realize the circuit connection of the wireless power supply component to realize the wireless power supply function and the EMC function.

[0066] Like the fixing seat 110, the circuit board 120 is disposed around the rotation axis of the laser radar. Specifically, the circuit board 120 extends along the circumference of the rotation axis of the laser radar to surround the rotation axis of the laser radar.

[0067] In some specific embodiments, the circuit board 120 extends along the axis of the laser radar, that is, Figure 1 and Figure 2As shown, the circuit board 120 is in the shape of a ring, and the rotating shaft of the laser radar passes through the center circle of the ring. Specifically, the circuit board 120 can be a printed circuit board assembly, i.e., Printed Circuit Board Assembly, PCBA, or other forms of electronic component carrier boards. In some embodiments, the circuit board 120 can be a wireless power receiving circuit board or a wireless power transmitting circuit board.

[0068] like Figure 1 and Figure 2 In some specific embodiments shown, the circuit board 120 and the fixing base 110 are concentrically arranged, that is, the direction of the line between the center of the circuit board 120 and the center of the fixing base 110 is the axial direction of the rotating shaft of the laser radar, and the rotating shaft of the laser radar passes through the center of the circuit board 120 and the center of the fixing base 110.

[0069] Combined with reference Figure 3 , showing Figure 1 and Figure 2 The schematic diagram of the structure of the top view of the first surface of the circuit board 120 facing the fixing base 110 in the wireless power supply component embodiment is shown.

[0070] like Figure 3 As shown, the circuit board 120 has a protruding contact spring 121 on one side surface facing the fixing base 110, and the contact spring 121 is used to contact the fixing base 110 to achieve EMC function through electrical connection between the circuit board 120 and the fixing base 110.

[0071] Figure 2 and Figure 3 In some specific embodiments shown, the circuit board 120 has a plurality of contact springs 121, and the plurality of contact springs 121 are distributed around the rotation axis of the laser radar. Specifically, the plurality of contact springs 121 are arranged along the circumference of the rotation axis of the laser radar. Figure 3 As shown, the plurality of contact springs 121 are evenly distributed on the outer edge of the circuit board 120 .

[0072] Along the direction of the line between the fixing base 110 and the circuit board 120, the distance between the contact spring 121 and the surface of the fixing base 110 is smaller than the size of the contact spring 121 in a free state, so that after the fixing base 110 and the circuit board 120 are fastened, the contact spring 121 undergoes elastic deformation, and there is considerable elastic potential energy between the contact spring 121 and the fixing base 110, so as to ensure the reliability of the electrical connection between the circuit board 120 and the fixing base 110, and further ensure the reliability of the EMC function.

[0073] The fastening point 130 is used to achieve a fixed connection between the circuit board 120 and the fixing base 110 .

[0074] In some embodiments of the present disclosure, there are multiple fastening points 130 between the circuit board 120 and the fixing seat 110; the multiple fastening points 130 are distributed around the rotating shaft. The number of the fastening points 130 can be 2, 3, 4, 5, 6, 8, etc. The multiple fastening points 130 can be evenly distributed around the rotating shaft, or can be unevenly distributed around the rotating shaft. For example, Figure 1 to Figure 2 In some of the embodiments shown, in the wireless power supply component, there are four fastening points 130 between the circuit board 120 and the fixing base 110, wherein the line between two of the fastening points 130 and the line between the other two of the fastening points 130 both pass through the center of the circle and are orthogonal to each other. The four fastening points can be evenly distributed on the circumference of the circuit board 120 to achieve uniform distribution of the force after the fastening connection, and can also ensure the uniformity of the eccentric force of the circuit board during rotation, thereby reducing the possibility of damage to the circuit board.

[0075] like Figure 3 As shown, the distance D between the fastening point 130 and the contact spring 121 is determined according to the elastic potential energy of the contact spring 121 and the stiffness of the circuit board 120. In some specific embodiments, the position of the fastening point 130 is determined based on the position of the contact spring 121, combined with the elastic potential energy of the contact spring 121 and the stiffness of the circuit board 120. The elastic potential energy of the contact spring 121 refers to the elastic potential energy between the contact spring 121 and the fixing base 110 after the fixing base 110 and the circuit board 120 are fastened together and the contact spring 121 undergoes elastic deformation.

[0076] It should be noted that in some other embodiments, after determining the position of the fastening point, the position of the contact spring closest to the fastening point can be determined according to the elastic potential energy of the contact spring and the stiffness of the circuit board, thereby obtaining the positions of other contact springs.

[0077] Specifically, the distance D between the contact spring piece 121 and the fastening point 130 is reasonably controlled so that the fastening point 130 is as close to the contact spring piece 121 as possible. The smaller the torque in the direction away from the fixing base 110 applied to the circuit board 120 is, the less likely the circuit board 120 is to be deformed.

[0078] like Figure 4As shown, after the fixing base 110 and the circuit board 120 are fastened together, the contact spring 121 and the surface of the fixing base 110 contact and squeeze each other to cause the contact spring 121 to undergo elastic deformation, and the contact spring 121 has elastic potential energy.

[0079] In order to constrain the elastic potential energy of the contact spring 121 and maintain the elastic deformation of the contact spring 121 , the circuit board 120 is subjected to a force F in a direction away from the fixing base 110 at the position of the contact spring 121 .

[0080] On the other hand, the circuit board 120 and the fixing base 110 are fixedly connected at the fastening point 130. One of the reasons for the deformation of the circuit board 120 is the magnitude of the torque M received by the circuit board 120 at the position of the contact spring piece 121. The torque M and the force F received by the circuit board 120 at the position of the contact spring piece 121 are both related to the distance D between the fastening point 130 and the contact spring piece 121: M=F×D.

[0081] Since the distance D between the fastening point 130 and the contact spring 121 is determined based on the elastic potential energy of the contact spring 121 and the stiffness of the circuit board 120, the distance D between the fastening point 130 and the contact spring 121 is reasonably controlled, so that the torque M applied to the circuit board 120 at the position of the contact spring 121 is within the tolerable range of the stiffness of the circuit board 120, that is, the torque M applied to the circuit board 120 at the position of the contact spring 121 will not cause the circuit board 120 to deform, thereby reducing or even avoiding deformation and warping of the circuit board while ensuring surface contact between the contact spring and the fixing seat. Therefore, by determining the distance between the fastening point 130 and the contact spring 121 according to the elastic potential energy of the contact spring 121 and the stiffness of the circuit board 120, the risk of the contact spring 121 being detached can be effectively reduced to ensure the reliability of the surface contact between the contact spring 121 and the fixing seat 110. The probability of deformation and warping of the circuit board 120 can also be effectively reduced to improve the reliability of the circuit board 120 and its surface components.

[0082] Specific as Figures 1 to 3 As shown, the contact spring 121 is distributed on the outer edge of the circuit board 120; along the radial direction of the rotating shaft of the laser radar, the fastening point 130 is located at the inner circle position of the contact spring 121, that is, the fastening point 130 is located on the side of the contact spring 121 close to the rotating shaft.

[0083] Combined with reference Figure 5 and Figure 6 , showing Figure 1 and Figure 2The structure diagram of the fixing base 110 in the embodiment of the wireless power supply assembly is shown. Figure 5 It is a schematic diagram of the top view of the fixing base 110 in the embodiment of the wireless power supply component; Figure 6 for Figure 5 A schematic cross-sectional structure diagram of the fixing base 110 along line A1A2 is shown.

[0084] The fixing seat 110 includes: a main body 111; a contact boss 112, wherein the contact boss 112 is located on the surface of the main body 111 facing the circuit board 120, and the top surface of the contact boss 112 is in contact with the contact spring 121; a fastening boss 113, wherein the fastening boss 113 is located on the surface of the main body 111 facing the circuit board 120, and the position of the fastening boss 113 corresponds to the position of the fastening point 130.

[0085] The contact boss 112 protrudes from a surface of the body 111 and contacts the spring piece 121 of the circuit board 120 to achieve electrical connection.

[0086] In some specific embodiments, the fixing base 110 is a turntable, and the fixing base 110 is in a circular ring shape. Figure 5 and Figure 6 As shown, the contact boss 112 extends along the axial direction of the rotating shaft. Specifically, the contact boss 112 surrounds the rotating shaft, that is, the contact boss 112 is in a circular ring shape extending along the circumference of the rotating shaft.

[0087] like Figure 3 In some embodiments shown, the plurality of contact springs 121 of the circuit board 120 are distributed around the rotation axis of the laser radar; Figure 5 As shown, the contact boss 112 extends along the circumference of the shaft. In some specific embodiments, the contact boss 112 surrounds the shaft, that is, within the surface of the body 111, the contact boss 112 is in a circular ring shape extending along the axial direction of the shaft.

[0088] The position of the contact boss 112 corresponds to the position of the contact spring 121, that is, on the surface of the body 111, the projection of the contact spring 121 is located within the projection range of the contact boss 112. Specifically, the contact spring 121 is distributed at the outer edge of the circuit board 120; therefore, the contact boss 112 is located at the outer edge of the body 111.

[0089] The fastening boss 113 and the contact boss 112 located at the fastening point 130 protrude from the same surface of the body 111 to achieve fastening between the fixing base 110 and the circuit board 120 .

[0090] In some embodiments of the present disclosure, the contact spring 121 is distributed on the outer edge of the circuit board 120, the contact boss 112 is located at the outer edge of the main body 111, and the distance D between the fastening point 130 and the contact spring 121 is determined according to the elastic potential energy of the contact spring 121 and the stiffness of the circuit board 120, that is, the distance D between the fastening point 130 and the contact spring 121 is controlled according to the elastic potential energy of the contact spring 121 and the stiffness of the circuit board 120, and the fastening boss 113 is located in the inner circle of the contact boss 112, that is, along the radial direction of the rotating shaft of the laser radar, and the fastening boss 113 is located between the contact boss 112 and the rotating shaft.

[0091] In some embodiments, the circuit board 120 and the fixing base 110 are fixedly connected by fastening bolts. Figure 5 and Figure 6 As shown, the fastening boss 113 has a screw hole 115 extending in the direction pointing to the body 111. Therefore, the fastening boss 113 contacts the surface of the circuit board 120, that is, the surface of the fastening boss 113 facing the circuit board 120 is directly attached to the surface of the circuit board 120 facing the fixing seat 110.

[0092] Combined with reference Figure 6 The height of the fastening boss 113 is greater than the height of the contact boss 112 to ensure that the contact spring 121 undergoes elastic deformation and avoids plastic deformation of the contact spring 121. Figure 6 In some of the illustrated embodiments, along the direction pointing toward the circuit board 120 , the top surface of the fastening boss 113 is located between the top surface of the contact boss 112 and the surface of the circuit board 120 .

[0093] Specifically, the distance H between the top surface of the fastening boss 113 and the top surface of the contact boss 112 is determined based on the deformation of the contact spring piece 121, so that the degree of deformation of the contact spring piece 121 is within the range of its elastic deformation, that is, the elastic deformation of the contact spring piece 121 is ensured, and the plastic deformation of the contact spring piece 121 is avoided.

[0094] Continue to refer Figure 5 and Figure 6 In some specific embodiments, the fixing seat 110 further includes: a supporting boss 114 , the supporting boss 114 is located on the surface of the body 111 facing the circuit board 120 , and the supporting boss 114 is located on one side of the fastening boss 113 .

[0095] The supporting boss 114 is used to support the circuit board 120 to prevent the circuit board 120 from being deformed and warped.

[0096] In some specific embodiments, the supporting boss 114 is in direct contact with the surface of the circuit board 120, that is, the surface of the supporting boss 114 facing the circuit board 120 is directly in contact with the surface of the circuit board 120 facing the fixing seat 110. Therefore, in order to avoid deformation of the circuit board 120 and to avoid warping of the circuit board 120, the top surface of the supporting boss 114 is flush with the top surface of the fastening boss 113.

[0097] like Figure 3 As shown, the circuit board 120 surrounds the rotating shaft, so Figure 5 and Figure 6 As shown, the bearing boss 114 extends along the circumference of the rotating shaft. Specifically, the bearing boss 114 surrounds the rotating shaft, that is, the bearing boss 114 is in a circular ring shape extending along the circumference of the rotating shaft.

[0098] like Figure 5 and Figure 6 As shown, the contact boss 112 is located at the outer edge of the body 111 , and the supporting boss 114 is located at the inner edge of the body 111 ; therefore, the supporting boss 114 is located on the side of the fastening boss 113 away from the contact boss 112 .

[0099] The contact boss 112 is located at the outer edge of the main body 111, and the supporting boss 114 is located at the inner edge of the main body 111, that is, along the radial direction of the rotating axis of the laser radar, the supporting boss 114 and the contact boss 112 are respectively located at the two side edges of the main body 111, and a groove 116 is formed between the supporting boss 114 and the contact boss 112; components are arranged on the surface of the circuit board 120 facing the fixing seat 112, and the groove 116 is used to provide an accommodating space for the components on the surface of the circuit board 120 facing the fixing seat 112.

[0100] In some embodiments of the present disclosure, the projection of the edge of the surface of the circuit board 120 facing the fixing base 110 on the surface of the fixing base 110 is located within the range of the supporting boss 114 to reduce the possibility of deformation of the circuit board 120, especially to prevent the edge of the circuit board 120 from warping.

[0101] Continue to refer Figure 1 and Figure 2 The wireless power supply component further includes: a magnetic core 140 , and the magnetic core 140 is located on a side of the circuit board 120 away from the fixing base 110 .

[0102] Like the fixing base 110 and the circuit board 120, the magnetic core 140 is arranged around the rotating shaft of the laser radar. Specifically, the magnetic core 140 extends along the circumference of the rotating shaft of the laser radar for one circle to surround the rotating shaft of the laser radar, that is, the magnetic core 140 is in a circular ring shape, and the rotating shaft of the laser radar passes through the center circle of the circular ring.

[0103] In some embodiments of the present disclosure, the magnetic core 140 is fixedly connected to the circuit board 120 by adhesive, that is, the surface of the magnetic core 140 facing the circuit board 120 and the surface of the circuit board 120 facing the magnetic core 140 are fixedly bonded by adhesive.

[0104] In some embodiments of the present disclosure, the surface of the magnetic core 140 facing away from the circuit board 120 has a groove 142 for setting the coil 102 of the wireless power supply component. The coil 102 is fixed in the groove 142 of the magnetic core 140 by an adhesive, and the coil 102 is electrically connected to the circuit board 120.

[0105] In some embodiments of the present disclosure, the distance between the magnetic core 140 and the circuit board 120 is less than 1 mm. By controlling the distance between the magnetic core 140 and the circuit board 120, it is possible to control the pulling of the circuit board 120 by the magnetic core 120 during acceleration of movement, which is beneficial to reducing the possibility of deformation of the circuit board 120. Moreover, by controlling the distance between the magnetic core 140 and the circuit board 120, it is possible to control the thickness of the adhesive between the magnetic core 140 and the circuit board 120, which is beneficial to improving the reliability of the connection between the magnetic core 140 and the circuit board 120.

[0106] The distance D between the fastening point 130 and the contact spring piece 121 is determined according to the elastic potential energy of the contact spring piece 121 and the stiffness of the circuit board 120, that is, the distance D between the fastening point 130 and the contact spring piece 121 is controlled according to the elastic potential energy of the contact spring piece 121 and the stiffness of the circuit board 120, so that the distance D between the fastening point 130 and the contact spring piece 121 is appropriate. When the fastening force applied by the fastening point 130 overcomes the release of the elastic potential energy of the contact spring piece 121, the torque applied by the contact spring piece 121 on the circuit board 120 can be reduced, so that the force applied by the contact spring piece 121 on the circuit board 120 is within the tolerance range of the stiffness of the circuit board to avoid deformation of the circuit board and avoid the occurrence of a gap between the circuit board 120 and the supporting boss 114.

[0107] In some specific embodiments, the distance D between the fastening point 130 and the contact spring 121 is relatively small; and within the surface of the magnetic core 140 , the projection of the fastening point 130 is within the range of the projection of the groove 140 .

[0108] Moreover, along the radial direction of the rotating shaft, the contact spring 121 is located at the outer edge of the circuit board 120, and the fastening point 130 is also located at a position close to the outside along the radial direction of the rotating shaft. Within the surface of the magnetic core 140, the projection of the fastening point 130 is located within the range of the projection of the groove 140, which can effectively reduce the distance between the fastening point 130 and the magnetic core 140. The fastening point 130 is closer to the magnetic core 140. During the acceleration of movement, the pulling force of the magnetic core 140 on the circuit board 120 is smaller, and the fastening point 130 is easier to overcome the pulling force, and the circuit board 120 is less likely to send obvious deformation.

[0109] In some specific embodiments, in a plane parallel to the surface of the magnetic core 140, the projection of the avoidance hole 141 is at most tangent to the side wall of the groove 142. Figure 7 In some of the embodiments shown, the diameter of the avoidance hole 141 is in the range of 0.5 mm to 6 mm.

[0110] Specific as Figure 7 In some of the embodiments shown, a surface of the magnetic core 140 facing the circuit board 120 has an avoidance hole 141 , and the position of the avoidance hole 141 corresponds to the position of the fastening point 130 .

[0111] The avoidance hole 141 is used to avoid the fastening bolts to prevent mechanical interference between the fastening bolts and the magnetic core 140. Therefore, in the surface of the magnetic core 140, the projection of the fastening bolts is located within the range of the avoidance hole 141. Figure 1 , Figure 2 and Figure 7 As shown, the avoidance hole 141 penetrates the magnetic core 140 along the thickness direction.

[0112] It should be noted that, in the aforementioned embodiment, the contact spring piece 121 is located on the radially outer side of the circuit board 120 along the rotating shaft. Under the requirement of the distance D between the fastening point 130 and the contact spring piece 121, the fastening point 130 is set at a position close to the radial outer side of the rotating shaft, and the fastening point 130 is located on the inner side of the contact spring piece 121. The fastening point 130 is located on the side of the contact spring piece 121 close to the rotating shaft.

[0113] In other embodiments of the present invention, the contact spring 221 may also be located at the inner edge of the circuit board 220 along the radial direction of the shaft. Under the condition that the distance between the fastening point 230 and the contact spring 221 is met, the fastening point 230 is arranged at a position closer to the outer side along the radial direction of the shaft, such as Figure 8 As shown, the fastening point is located on the outside of the contact spring piece 221 , and the fastening point 230 is located on a side of the contact spring piece 221 away from the rotating shaft.

[0114] refer to Fig. 9 , showing a functional block diagram of an embodiment of the laser radar disclosed in the present invention

[0115] The laser radar comprises: a first power supply module 201 and a second power supply module 202, wherein the first power supply module 201 and the second power supply module 202 are separated from each other;

[0116] At least one of the first power supply module 201 and the second power supply module 202 includes a wireless power supply component, and the wireless power supply component includes: a fixing seat; a circuit board, the circuit board is located on one side of the fixing seat, and the circuit board has at least one contact spring on the surface facing the fixing seat, and the contact spring is in contact with the surface of the fixing seat; the circuit board and the fixing seat are fixedly connected by at least one fastening point, and within the surface of the circuit board, the distance between the fastening point and the contact spring is determined based on the elastic potential energy of the contact spring and the stiffness of the circuit board 120.

[0117] In some specific embodiments, the wireless power supply component is the wireless power supply component of the present disclosure, and the specific technical solution of the wireless power supply component refers to the specific embodiment of the wireless power supply component of the aforementioned laser radar, which will not be described in detail in the present disclosure.

[0118] like Fig. 9 In some of the embodiments shown, the first power supply module 201 and the second power supply module 202 both include the wireless power supply component, that is, the wireless power supply component of the first power supply module 201 includes a fixing seat 211 and a circuit board 221, and the wireless power supply component of the second power supply module 202 includes a fixing seat 212 and a circuit board 222.

[0119] It should be noted that the magnetic core-coil component 251 of the wireless power supply component of the first power supply module 201 includes a magnetic core and a coil; the magnetic core-coil component 251 of the wireless power supply component of the second power supply module 202 includes a magnetic core and a coil.

[0120] In some embodiments of the present disclosure, the laser radar is a mechanical rotating laser radar, and the laser radar also includes: a base shell; a rotating shaft, the rotating shaft is fixed relative to the base shell; the first power supply module 202 is fixed relative to the rotating shaft, and the second power supply module 202 rotates around the rotating shaft.

[0121] refer to Fig.10 , showing a flow chart of an embodiment of a method for manufacturing a wireless power supply component for a laser radar disclosed in the present invention.

[0122] Combined with reference Figures 1 to 7 The manufacturing method of the wireless power supply component for the laser radar includes: first executing step S310 to fasten the fixing base 110 and the circuit board 120; after the fixing base 110 and the circuit board 120 are fastened together, executing step S320 to form a first glue layer on the surface of the circuit board 120; executing step S330 to form a second glue layer in the groove 142 of the magnetic core 140; after the second glue layer is formed in the groove 142 of the magnetic core 140, executing step S340 to set the coil 102 in the groove 142; finally executing step S350 to cure the first glue layer and the second glue layer.

[0123] In some specific embodiments, step S310 is executed, in which the fixing base 110 and the circuit board 120 are fastened together by fastening bolts, and the contact spring 121 on the circuit board 120 contacts and squeezes the surface of the fixing base 110 so that the contact spring 121 has elastic potential energy; the fastening bolt passes through the avoidance hole 141 of the magnetic core 140.

[0124] Specific as Figures 1 to 7 As shown, the magnetic core 110 has an avoidance hole 141 penetrating along the thickness direction, so step S330 is executed, and in the step of forming the second glue layer in the groove 142 of the magnetic core 140, the avoidance hole 141 penetrating along the thickness direction of the magnetic core 140 is avoided. Therefore, in the step of forming the second glue layer in the groove 142 of the magnetic core 140, the glue coating path of the second glue layer is divided into multiple sections, and the avoidance hole 141 is located between two adjacent glue coating paths.

[0125] In addition, in some embodiments of the present disclosure, in the step of curing the first adhesive layer and the second adhesive layer, the first adhesive layer and the second adhesive layer are cured at the same time to reduce the process path, improve manufacturing efficiency and reduce manufacturing costs.

[0126] It should be noted that, in some embodiments, in the step of simultaneously curing the first adhesive layer and the second adhesive layer, concentricity work is performed and pressure-maintaining curing is performed.

[0127] In summary, within the surface of the circuit board, the distance between the fastening point and the contact spring is determined according to the elastic potential energy of the contact spring and the stiffness of the circuit board. Determining the distance between the fastening point and the contact spring according to the elastic potential energy of the contact spring and the stiffness of the circuit board can effectively reduce the risk of the contact spring being disengaged, thereby ensuring the reliability of the surface contact between the contact spring and the fixing seat, and can also effectively reduce the probability of deformation and warping of the circuit board, thereby improving the reliability of the circuit board and its surface components.

[0128] Moreover, the wireless power supply component further includes: a magnetic core, which is located on a side of the circuit board away from the fixing seat. When the wireless power supply component is applied to a vehicle-mounted laser radar, the reasonable selection of the fastening point position can effectively overcome the pulling force of the magnetic core on the circuit board during the acceleration of the movement, and can effectively reduce the possibility of deformation of the circuit board, which is conducive to improving the reliability of the laser radar.

[0129] Although the disclosure is disclosed as above, the disclosure is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the disclosure, so the protection scope of the disclosure should be based on the scope defined by the claims.

Claims

1. A wireless power supply component for a laser radar, characterized in that: include: A fixing seat, the fixing seat is arranged around the rotating axis of the laser radar; A circuit board, the circuit board is arranged around the rotating shaft of the laser radar, the circuit board is located on one side of the fixing seat, and the circuit board has at least one contact spring on the surface facing the fixing seat, the contact spring contacts and squeezes the surface of the fixing seat so that the contact spring has elastic potential energy; The circuit board and the fixing seat are fixedly connected at a fastening point, and within the surface of the circuit board, the distance between the fastening point and the contact spring is determined according to the elastic potential energy of the contact spring and the rigidity of the circuit board.

2. The wireless power supply assembly according to claim 1, characterized in that: The fixing seat comprises: ontology; A contact boss, the contact boss is located on a surface of the body facing the circuit board, and a top surface of the contact boss is in contact with the contact spring; A fastening boss is located on a surface of the body facing the circuit board, and the position of the fastening boss corresponds to the position of the fastening point.

3. The wireless power supply assembly according to claim 2, characterized in that: The fastening boss contacts the surface of the circuit board.

4. The wireless power supply assembly according to claim 2, characterized in that: Along the radial direction of the rotating shaft of the laser radar, the fastening boss is located between the contact boss and the rotating shaft.

5. The wireless power supply assembly according to claim 2, characterized in that: In a direction pointing toward the circuit board, a top surface of the fastening boss is located between a top surface of the contact boss and a surface of the circuit board.

6. The wireless power supply assembly according to claim 5, characterized in that: The distance between the top surface of the fastening boss and the top surface of the contact boss is determined according to the elastic potential energy of the contact spring.

7. The wireless power supply assembly according to claim 2, characterized in that: The circuit board has a plurality of contact springs, and the plurality of contact springs are distributed around the rotation axis of the laser radar; The contact boss extends along the circumference of the rotating shaft.

8. The wireless power supply assembly according to claim 7, characterized in that: The contact boss surrounds the rotating shaft.

9. The wireless power supply assembly according to claim 2, characterized in that: There are a plurality of fastening points between the circuit board and the fixing seat; A plurality of the fastening points are distributed around the rotating shaft.

10. The wireless power supply assembly according to claim 2, characterized in that: The fixing seat further comprises: a bearing boss, the bearing boss is located on the surface of the body facing the circuit board, and the bearing boss is located on one side of the fastening boss.

11. The wireless power supply assembly according to claim 10, characterized in that: The supporting boss extends along the circumferential direction of the rotating shaft.

12. The wireless power supply assembly according to claim 11, characterized in that: The bearing boss surrounds the rotating shaft.

13. The wireless power supply assembly according to claim 10, characterized in that: The top surface of the bearing boss is flush with the top surface of the fastening boss.

14. The wireless power supply assembly according to claim 10, characterized in that: The bearing boss is located at a side of the fastening boss away from the contact boss.

15. The wireless power supply assembly according to claim 1, characterized in that: Also includes: A magnetic core is located on a side of the circuit board away from the fixing seat.

16. The wireless power supply assembly according to claim 15, characterized in that: The surface of the magnetic core facing the circuit board is provided with an avoidance hole, and the position of the avoidance hole corresponds to the position of the fastening point.

17. The wireless power supply assembly according to claim 16, wherein: The avoidance hole penetrates the magnetic core along the thickness direction.

18. The wireless power supply assembly according to claim 15, characterized in that: The surface of the magnetic core facing away from the circuit board has a groove for arranging the coil; In the surface of the magnetic core, the projection of the fastening point is located within the range of the projection of the groove.

19. A laser radar, characterized in that: include: A first power supply module and a second power supply module, wherein the first power supply module and the second power supply module are separated from each other; At least one of the first power supply module and the second power supply module includes a wireless power supply component, and the wireless power supply component includes: a fixing seat, which is arranged around the rotating shaft of the laser radar; a circuit board, which is arranged around the rotating shaft of the laser radar, and the circuit board is located on one side of the fixing seat, and the circuit board has at least one contact spring on the surface facing the fixing seat, and the contact spring contacts and squeezes the surface of the fixing seat so that the contact spring has elastic potential energy; the circuit board and the fixing seat are fixedly connected at a fastening point, and within the surface of the circuit board, the distance between the fastening point and the contact spring is determined according to the elastic potential energy of the contact spring and the stiffness of the circuit board.

20. The laser radar according to claim 19, characterized in that: Also includes: A base shell; a rotating shaft, wherein the rotating shaft is fixedly arranged relative to the base shell; The first power supply module is fixed relative to the rotating shaft, and the second power supply module rotates around the rotating shaft.

21. A method for manufacturing a wireless power supply component for a laser radar, characterized in that: include: Fasten the fixing seat and the circuit board together; After the fixing seat and the circuit board are fastened together, a first adhesive layer is formed on the surface of the circuit board; forming a second glue layer in the groove of the magnetic core; After forming a second glue layer in the groove of the magnetic core, a coil is arranged in the groove; The first adhesive layer and the second adhesive layer are cured.

22. The manufacturing method according to claim 21, characterized in that: In the step of forming the second glue layer in the groove of the magnetic core, the avoidance hole penetrating the magnetic core in the thickness direction is avoided.

23. The manufacturing method according to claim 21, characterized in that: In the step of curing the first adhesive layer and the second adhesive layer, the first adhesive layer and the second adhesive layer are cured at the same time.

24. The manufacturing method according to claim 21, characterized in that: In the step of fastening the fixing seat and the circuit board, the fixing seat and the circuit board are fastened together by fastening bolts, and the contact spring on the circuit board contacts and squeezes the surface of the fixing seat so that the contact spring has elastic potential energy; the fastening bolts pass through the avoidance hole of the magnetic core.

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