Laser radar and mobile device

Abstract

The invention is suitable for the technical field of laser radars, and provides a laser radar and a mobile device.The laser radar comprises a main body part, a laser ranging part and a supporting part, the two ends of the laser ranging part are provided with a first rotating structure and a second rotating structure respectively, and the first rotating structure and the second rotating structure are coaxially arranged; the supporting part comprises a first bearing assembly and a second bearing assembly, the first bearing assembly and the second bearing assembly are both arranged in the containing cavity, the first rotating structure is supported through the first bearing assembly, and the second rotating structure is supported through the second bearing assembly, so that the laser ranging part is rotatably installed in the containing cavity. According to the laser radar, the laser ranging part is supported through the first bearing assembly and the second bearing assembly at the same time, and the phenomenon that the coaxiality error of the two bearings is too large due to the structure and installation errors of the connecting part between the laser ranging module and the rotating platform can be effectively avoided.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of laser radars, and more particularly relates to a laser radar and a mobile device. BACKGROUND

[0002] A laser radar is a radar system for detecting the position, speed and other characteristic quantities of a target by emitting a laser beam. Its working principle is to emit a detection signal to a target, then compare the signal received from the target with the emitted signal, and after appropriate processing, the relevant information of the target, such as the distance, direction, height, speed, attitude and even shape of the target, can be obtained, so as to detect, track and identify the target such as an airplane or a missile. It is composed of a laser transmitter, an optical receiver, a rotating platform and an information processing system. The laser transmitter converts an electric pulse into an optical pulse for emission, and the optical receiver restores the optical pulse reflected from the target into an electric pulse and sends it to a display.

[0003] In order to make the rotation of the laser ranging part more stable, some existing laser radars select to set bearings on the top of the laser ranging module and the bottom of the rotating platform respectively to support them.

[0004] However, since the laser ranging module and the rotating platform are separately arranged, the connecting part between the laser ranging module and the rotating platform is prone to structural errors and installation errors, which may cause a large coaxiality error between the bearing on the top of the laser ranging module and the bearing on the bottom of the rotating platform, and affect the rotation stability. SUMMARY

[0005] The purpose of the embodiments of the application is to provide a laser radar and a mobile device, aiming to solve the technical problem of poor stability of the laser radar in the prior art.

[0006] To achieve the above-mentioned purpose, according to one aspect of the application, a laser radar is provided, which comprises a main body part, a laser ranging part and a support part, wherein the main body part is provided with a containing cavity; the laser ranging part is arranged in the containing cavity, and the two ends of the laser ranging part are respectively provided with a first rotating structure and a second rotating structure, and the first rotating structure and the second rotating structure are coaxially arranged; the support part comprises a first bearing assembly and a second bearing assembly, and the first bearing assembly and the second bearing assembly are both arranged in the containing cavity, the first rotating structure is supported by the first bearing assembly, and the second rotating structure is supported by the second bearing assembly, so that the laser ranging part is rotatably mounted in the containing cavity.

[0007] Optionally, the laser radar further comprises a control part, the control part comprising a rotating support and a first control plate, the rotating support being fixedly connected with the laser ranging part, and the first control plate being clamped between the laser ranging part and the rotating support and being electrically connected with the laser ranging part; the first control plate is provided with a first accommodation structure, the rotating support is provided with a second accommodation structure, and the second rotating structure is connected with the second bearing assembly by sequentially passing through the first accommodation structure and the second accommodation structure.

[0008] Optionally, the second rotating structure is an annular structure provided with at least one gap, wherein: the second rotating structure has a plurality of gaps, the second rotating structure comprises a plurality of supporting protrusions, the plurality of supporting protrusions are arranged at intervals along the rotation direction of the laser ranging part to form a plurality of gaps, the first accommodation structure comprises a plurality of first accommodation holes, the second accommodation structure comprises a second accommodation hole, and the supporting protrusions are connected with the second bearing assembly by sequentially passing through the first accommodation hole and the second accommodation hole; or, the second rotating structure has one gap, the second rotating structure is a C-shaped ring structure, the first accommodation structure comprises a first accommodation hole, the first accommodation hole is a C-shaped hole structure corresponding to the second rotating structure, the second accommodation structure comprises a second accommodation hole, and the second rotating structure is connected with the second bearing assembly by sequentially passing through the first accommodation hole and the second accommodation hole.

[0009] Optionally, the inner side wall of the second rotating structure and / or the outer side wall of the second rotating structure is provided with a reinforcing rib.

[0010] Optionally, the second rotating structure is provided with a step structure, the step structure being capable of abutting against the end of the second bearing assembly to limit the second rotating structure.

[0011] Optionally, the laser radar further comprises a communication part, the communication part comprising a first communication assembly and a second communication assembly, the control part further comprising a second control plate, the second control plate being arranged in the accommodating cavity, the first communication assembly being arranged on the side of the first control plate close to the second control plate and being located in the space surrounded by the second rotating structure, the first communication assembly being capable of being electrically connected with the first control plate through the gap; the second communication assembly being arranged on the side of the second control plate close to the first control plate and being electrically connected with the second control plate, the position of the second communication assembly corresponding to the position of the first communication assembly, the first control plate and the second control plate being capable of performing wireless communication through the first communication assembly and the second communication assembly.

[0012] Optionally, the main body part comprises an upper cover assembly and a lower shell assembly, the upper cover assembly is installed on the lower shell assembly, and the upper cover assembly and the lower shell assembly form a containing cavity; the first bearing assembly is arranged on the upper cover assembly, and the second bearing assembly is arranged on the lower shell assembly; the support part further comprises a first bearing mounting seat, the first bearing mounting seat is arranged in the containing cavity and is fixedly connected with the upper cover assembly, and the first bearing assembly is installed on the first bearing mounting seat; the upper cover assembly comprises an upper cover body, a glue inlet hole is arranged on the upper cover body, a glue containing groove is arranged on one side of the first bearing mounting seat close to the upper cover body, and the position of the glue containing groove corresponds to the position of the glue inlet hole; a first annular protrusion is arranged on one side of the first bearing mounting seat close to the upper cover body, and the glue containing groove is formed in the middle of the first annular protrusion; a first anti-overflow groove is arranged on one side of the upper cover body close to the first bearing mounting seat, the position of the first anti-overflow groove corresponds to the position of the first annular protrusion, one end of the first annular protrusion close to the first anti-overflow groove is at least partially located in the first anti-overflow groove, and a second anti-overflow groove is arranged on one side of the first bearing mounting seat close to the upper cover body, and the second anti-overflow groove is located on the radial outer side of the first anti-overflow groove.

[0013] Optionally, the laser ranging part comprises a ranging support, and the two ends of the ranging support are respectively provided with a first rotating structure and a second rotating structure, and the ranging support, the first rotating structure and the second rotating structure are integrally formed.

[0014] According to another aspect of the present application, a mobile device is provided, and the mobile device comprises the laser radar.

[0015] The laser radar provided by the present application has the beneficial effects that, compared with the prior art, the laser radar provided by the present application sets the first rotating structure and the second rotating structure on the two ends of the laser ranging part and coaxially arranges the first rotating structure and the second rotating structure, and supports the first rotating structure by the first bearing assembly and supports the second rotating structure by the second bearing assembly, so that the laser ranging part provided by the present application can stably rotate in the containing cavity, and compared with the prior art which sets bearings on the top of the laser ranging module and the bottom of the rotating platform to support, the laser radar provided by the present application simultaneously supports the laser ranging part by the first bearing assembly and the second bearing assembly, so that the phenomenon of excessive coaxiality error of the two bearings due to structural error and installation error of the connection part between the laser ranging module and the rotating platform in the prior art can be effectively avoided. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0017] Figure 1 A structural schematic diagram of a laser radar provided by the embodiments of the present application is shown in the following figure.

[0018] Figure 2 A sectional schematic diagram of the laser radar provided by the embodiments of the present application is shown in the following figure.

[0019] Figure 3 A local enlarged view of area A in the above figure is shown in the following figure. Figure 2

[0020] A local enlarged view of area B in the above figure is shown in the following figure. Figure 4

[0021] An exploded schematic diagram of the laser radar provided by the embodiments of the present application is shown in the following figure. Figure 5 Figure 4 An exploded schematic diagram of the laser radar provided by the embodiments of the present application is shown in the following figure.

[0022] Figure 6 An exploded schematic diagram of the laser radar provided by the embodiments of the present application is shown in the following figure.

[0023] Figure 7 An exploded schematic diagram of the laser radar provided by the embodiments of the present application is shown in the following figure.

[0024] The label details involved in the above figures are as follows:

[0025] 10, main body part; 11, accommodating cavity; 12, upper cover assembly; 121, upper cover body; 1211, glue inlet hole; 1212, first anti-overflow groove; 122, first cover plate; 13, lower shell assembly; 131, second outer circular ring;

[0026] 20, laser ranging part; 21, first rotating structure; 22, second rotating structure;

[0027] 31, first bearing assembly; 32, second bearing assembly; 33, first bearing mounting seat; 331, glue accommodating groove; 332, fixing column; 333, second anti-overflow groove;

[0028] 41, rotating support; 411, second accommodation structure; 412, first outer circular ring; 42, first control plate; 421, first accommodation structure; 43, second control plate;

[0029] ​51, first coil; 52, second coil;

[0030] 61, first communication component; 62, second communication component;

[0031] 71, stator component; 72, rotor component. DETAILED DESCRIPTION

[0032] In order to make the technical problems solved by the present application, the technical solutions and the beneficial effects clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not intended to limit the present application.

[0033] It should be noted that when an element is referred to as being "fixed" or "set" on another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or indirectly connected to the other element. The embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0034] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0035] In addition, the terms "first", "second" are only used for description purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0036] As described in the background art, the laser radar is a radar system for detecting the position, speed and other characteristic quantities of a target by emitting a laser beam. Its working principle is to emit a detection signal to a target, then compare the signal received from the target with the emitted signal, and after appropriate processing, the relevant information of the target, such as the distance, direction, height, speed, attitude and even shape of the target, can be obtained, so as to detect, track and identify the target such as an airplane or a missile. It is composed of a laser transmitter, an optical receiver, a rotating platform and an information processing system, etc. The laser transmitter converts an electric pulse into a light pulse and emits it, and the optical receiver restores the light pulse reflected from the target into an electric pulse and sends it to a display. In order to make the rotation of the laser ranging part more stable, some existing laser radars select to set bearings on the top of the laser ranging module and the bottom of the rotating platform respectively to support. However, since the laser ranging module and the rotating platform are separately arranged, the connecting part between the laser ranging module and the rotating platform is prone to structural errors and installation errors, which may cause a large coaxiality error between the bearings on the top of the laser ranging module and the bearings on the bottom of the rotating platform, affecting the rotation stability.

[0037] Reference Figures 1 to 7As shown, in order to solve the above problems, according to one aspect of the present application, the embodiment of the present application provides a laser radar, which comprises a main body part 10, a laser ranging part 20 and a support part, wherein the main body part 10 is provided with a containing cavity 11; the laser ranging part 20 is arranged in the containing cavity 11, and the two ends of the laser ranging part 20 are respectively provided with a first rotating structure 21 and a second rotating structure 22, and the first rotating structure 21 and the second rotating structure 22 are coaxially arranged; the support part comprises a first bearing assembly 31 and a second bearing assembly 32, and the first bearing assembly 31 and the second bearing assembly 32 are both arranged in the containing cavity 11, the first rotating structure 21 is supported by the first bearing assembly 31, and the second rotating structure 22 is supported by the second bearing assembly 32, so that the laser ranging part 20 is rotatably arranged in the containing cavity 11. The laser radar provided by the embodiment can stably rotate the laser ranging part 20 in the containing cavity 11 by arranging the first rotating structure 21 and the second rotating structure 22 at the two ends of the laser ranging part 20 and coaxially arranging the first rotating structure 21 and the second rotating structure 22, and supporting the first rotating structure 21 by the first bearing assembly 31 and supporting the second rotating structure 22 by the second bearing assembly 32. Compared with the prior art of arranging bearings at the top of the laser ranging module and the bottom of the rotating platform to support, the laser radar provided by the embodiment can support the laser ranging part 20 by the first bearing assembly 31 and the second bearing assembly 32, thereby effectively avoiding the phenomenon that the coaxiality error of the two bearings is too large due to the structural error and installation error of the connection part between the laser ranging module and the rotating platform in the prior art.

[0038] In a specific embodiment, the rotation movement and the stability of the pitch angle of the laser ranging part 20 can be effectively ensured by arranging the first bearing assembly 31 and the second bearing assembly 32 at the two ends of the laser ranging part 20 to support.

[0039] Referring to Figure 2As shown, in order to control the laser ranging part 20 provided by the embodiment, the laser radar in the embodiment further comprises a control part, the control part comprises a rotating support 41 and a first control plate 42, the rotating support 41 is fixedly connected with the laser ranging part 20, the first control plate 42 is clamped between the laser ranging part 20 and the rotating support 41 and is electrically connected with the laser ranging part 20. By setting the first control plate 42 provided by the embodiment to be capable of being clamped between the laser ranging part 20 and the rotating support 41, the laser radar provided by the embodiment can ensure the installation convenience and reliability of the first control plate 42 in the case that the first rotating structure 21 and the second rotating structure 22 are both arranged on the laser ranging part 20. At the same time, by setting the first control plate 42 to be electrically connected with the laser ranging part 20, the laser ranging part 20 provided by the embodiment can be controlled through the first control plate 42.

[0040] In an optional embodiment, in order to improve the installation accuracy of the first control plate 42 provided by the embodiment, a first positioning structure is arranged on the side of the first control plate 42 close to the rotating support 41, a second positioning structure is arranged on the side of the rotating support 41 close to the first control plate 42, the position of the first positioning structure corresponds to the position of the second positioning structure, and through the cooperation of the first positioning structure and the second positioning structure provided by the embodiment, the first control plate 42 provided by the embodiment can be accurately positioned on the rotating support 41.

[0041] In an optional embodiment, the first positioning structure and the second positioning structure provided by the embodiment are both multiple, multiple first positioning structures are arranged on the first control plate 42 in a spaced manner, and multiple second positioning structures correspond to the multiple first positioning structures one by one.

[0042] In an optional embodiment, one of the first positioning structure and the second positioning structure provided by the embodiment is a positioning hole, and the other is a positioning column.

[0043] In an optional embodiment, a first connecting structure is arranged on the side of the first control plate 42 close to the rotating support 41, a second connecting structure is arranged on the side of the rotating support 41 close to the first control plate 42, and the position of the first connecting structure corresponds to the position of the second connecting structure.

[0044] In an optional embodiment, the first connecting structure and the second connecting structure provided by the embodiment are both multiple, multiple first connecting structures are arranged on the first control plate 42 in a spaced manner, and multiple second connecting structures correspond to the multiple first connecting structures one by one.

[0045] In an alternative embodiment, one of the first connecting structure and the second connecting structure is a threaded hole, and the other is a mounting hole. By screwing a threaded fastener through the mounting hole and the threaded hole, the mounting stability of the first control plate 42 can be effectively improved. Of course, in other embodiments, the first connecting structure and the second connecting structure can also be a combination of a clamping protrusion and a clamping groove.

[0046] In an alternative embodiment, in order to improve the mounting accuracy of the rotating bracket 41, the rotating bracket 41 is provided with a third positioning structure on the side close to the ranging bracket, and the ranging bracket is provided with a fourth positioning structure on the side close to the rotating bracket 41. The positions of the third positioning structure and the fourth positioning structure correspond to each other. Through the cooperation of the third positioning structure and the fourth positioning structure, the rotating bracket 41 can be accurately positioned on the ranging bracket.

[0047] In an alternative embodiment, the third positioning structure and the fourth positioning structure are both provided in multiple numbers. The multiple third positioning structures are arranged at intervals on the rotating bracket 41, and the multiple fourth positioning structures correspond one-to-one to the multiple third positioning structures.

[0048] In an alternative embodiment, one of the third positioning structure and the fourth positioning structure is a positioning hole, and the other is a positioning column.

[0049] In an alternative embodiment, the first control plate 42 is provided with a clearance opening. The position of the clearance opening corresponds to the position of the positioning column, and the clearance opening is used to accommodate the positioning column.

[0050] In an alternative embodiment, the rotating bracket 41 is provided with a third connecting structure on the side close to the ranging bracket, and the ranging bracket is provided with a fourth connecting structure on the side close to the rotating bracket 41. The positions of the third connecting structure and the fourth connecting structure correspond to each other.

[0051] In an alternative embodiment, the third connecting structure and the fourth connecting structure are both provided in multiple numbers. The multiple third connecting structures are arranged at intervals on the rotating bracket 41, and the multiple fourth connecting structures correspond one-to-one to the multiple third connecting structures.

[0052] In an alternative embodiment, one of the third connecting structure and the fourth connecting structure is a threaded hole, and the other is a mounting hole. By screwing a threaded fastener through the mounting hole and the threaded hole, the mounting stability of the rotating support 41 can be effectively improved. Of course, in other embodiments, the third connecting structure and the fourth connecting structure can also be a combination of a clamping protrusion and a clamping groove.

[0053] Referring to Figure 2 In a specific embodiment, the first control plate 42 is provided with a first accommodation structure 421, and the rotating support 41 is provided with a second accommodation structure 411. The second rotating structure 22 is connected to the second bearing assembly 32 by sequentially passing through the first accommodation structure 421 and the second accommodation structure 411. By providing the first control plate 42 with the first accommodation structure 421 and the rotating support 41 with the second accommodation structure 411, the second rotating structure 22 can be connected to the second bearing assembly 32 by sequentially passing through the first accommodation structure 421 and the second accommodation structure 411.

[0054] In an alternative embodiment, the second rotating structure 22 is provided with an arc-shaped surface that can cooperate with the second bearing assembly 32.

[0055] In a specific embodiment, the second rotating structure 22 is an annular structure provided with at least one gap. By providing the second rotating structure 22 with the annular structure provided with at least one gap, the first control plate 42 can be electrically connected to the electronic components inside the annular structure through the gap.

[0056] In a specific embodiment, the second rotating structure 22 is provided with a plurality of gaps. The second rotating structure 22 includes a plurality of support protrusions that are spaced apart in the rotation direction of the laser ranging portion 20 to form the plurality of gaps. The first accommodation structure 421 includes a plurality of first accommodation holes, and the second accommodation structure 411 includes a second accommodation hole. The support protrusions are connected to the second bearing assembly 32 by sequentially passing through the first accommodation holes and the second accommodation hole. By providing the second rotating structure 22 with a plurality of support protrusions and spacing the support protrusions apart in the rotation direction of the laser ranging portion 20, a gap can be formed between adjacent two support protrusions, thereby enabling the second rotating structure 22 to form a plurality of gaps. At the same time, by providing the first accommodation structure 421 with a plurality of first accommodation holes and the second accommodation structure 411 with a second accommodation hole, the support protrusions can be connected to the second bearing assembly 32 by sequentially passing through the first accommodation holes and the second accommodation hole.

[0057] In an alternative embodiment, the first accommodation holes and the support protrusions of the present embodiment correspond to each other one by one.

[0058] In an alternative embodiment, the first control plate 42 of the present embodiment can be at least partially arranged in the space surrounded by the second rotating structure 22, so as to increase the available area of the first control plate 42, i.e. more components can be arranged on the first control plate 42, by forming a gap between the two adjacent support protrusions.

[0059] In an alternative embodiment, the space surrounded by the second rotating structure 22 of the present embodiment at least partially coincides with the rotation center of the laser ranging part 20.

[0060] In another embodiment, the second rotating structure 22 of the present embodiment has one gap, is a C-shaped ring structure, the first accommodation structure 421 includes a first accommodation hole which is a C-shaped hole structure corresponding to the C-shaped ring structure, the second accommodation structure 411 includes a second accommodation hole, and the second rotating structure 22 is sequentially arranged through the first accommodation hole and the second accommodation hole and connected with the second bearing assembly 32. By arranging the rotating structure of the present embodiment as a C-shaped ring, arranging the first accommodation hole as a C-shaped hole structure corresponding to the C-shaped ring, and arranging the second accommodation structure 411 to include a second accommodation hole, the second rotating structure 22 of the present embodiment can be sequentially arranged through the first accommodation hole and the second accommodation hole and connected with the second bearing assembly 32.

[0061] In an alternative embodiment, the second rotating structure 22 of the present embodiment is arranged in the inner ring of the second bearing assembly 32, and the side of the second rotating structure 22 close to the inner ring of the second bearing assembly 32 is provided with an arc-shaped matching surface, so that the second rotating structure 22 of the present embodiment can abut against the inner ring of the second bearing assembly 32 through the arc-shaped matching surface.

[0062] In another embodiment, the second rotating structure 22 of the present embodiment is arranged on the outer ring of the second bearing assembly 32, and the side of the second rotating structure 22 close to the outer ring of the second bearing assembly 32 is provided with an arc-shaped matching surface, so that the second rotating structure 22 of the present embodiment can abut against the outer ring of the second bearing assembly 32 through the arc-shaped matching surface.

[0063] Referring to Figure 7 In the present embodiment, the inner side wall of the second rotating structure 22 and / or the outer side wall of the second rotating structure 22 is provided with a reinforcing rib, which effectively improves the structural strength of the support protrusions of the present embodiment.

[0064] In an alternative embodiment, the reinforcing rib extends along the axial direction of the second bearing assembly 32.

[0065] In an alternative embodiment, the reinforcing rib is provided in a plurality, and the plurality of reinforcing ribs are arranged in a circumferential direction of the second rotating structure 22.

[0066] In a specific embodiment, the reinforcing rib is arranged on the side of the supporting protrusion away from the inner ring of the second bearing assembly 32, and the reinforcing rib structure extends along the axial direction of the second bearing assembly 32. By arranging the reinforcing rib structure on the side of the supporting protrusion away from the inner ring of the second bearing assembly 32, and extending the reinforcing rib structure along the axial direction of the second bearing assembly 32, the structural strength of the supporting protrusion provided by the embodiment can be effectively improved.

[0067] In a specific embodiment, the second rotating structure 22 is provided with a step structure, and the step structure can abut against the end of the second bearing assembly 32 to limit the second rotating structure 22. By arranging the step structure on the second rotating structure 22 provided by the embodiment, the second rotating structure 22 provided by the embodiment can abut against the end of the second bearing assembly 32 through the step structure, thereby achieving axial limitation of the second rotating structure 22.

[0068] In an alternative embodiment, the step structure is arranged on the side of the second rotating structure 22 close to the second bearing assembly 32. The second rotating structure 22 provided by the embodiment can abut against the side of the second bearing assembly 32 close to the laser ranging part 20 through the step structure, thereby limiting the axial displacement of the laser ranging part 20 and supporting the laser ranging part 20.

[0069] Referring to Figure 2 , Figure 4 , Figure 6 and Figure 7As shown, the laser radar in the embodiment further comprises a communication part, the communication part comprises a first communication assembly 61 and a second communication assembly 62, the control part further comprises a second control board 43, the second control board 43 is arranged in the accommodating cavity 11, the first communication assembly 61 is arranged on the side of the first control board 42 close to the second control board 43 and located in the space surrounded by the second rotating structure 22, the first communication assembly 61 can be electrically connected with the first control board 42 through the gap; the second communication assembly 62 is arranged on the side of the second control board 43 close to the first control board 42 and electrically connected with the second control board 43, the position of the second communication assembly 62 corresponds to the position of the first communication assembly 61, the first control board 42 and the second control board 43 can perform wireless communication through the first communication assembly 61 and the second communication assembly 62. By arranging the first communication assembly 61 electrically connected with the first control board 42 on the side of the first control board 42 close to the second control board 43, arranging the second communication assembly 62 electrically connected with the second control board 43 on the side of the second control board 43 close to the first control board 42, and arranging the first communication assembly 61 provided in the embodiment to be located in the space surrounded by the second rotating structure 22, and arranging the position of the second communication assembly 62 to correspond to the position of the first communication assembly 61, the first control board 42 provided in the embodiment can perform wireless communication through the first communication assembly 61 and the second communication assembly 62 in the process of rotating relative to the second control board 43.

[0070] In a specific embodiment, since the laser radar provided in the embodiment is arranged with at least one gap on the second rotating structure 22, the first control board 42 can be at least partially located in the space surrounded by the second rotating structure 22, so that the first communication assembly 61 provided in the embodiment can be arranged on the first control board 42 and arranged coaxially with the first rotating structure 21.

[0071] In a specific embodiment, the position of the second control board 43 provided in the embodiment corresponds to the position of the first control board 42 and is electrically connected with the first control board 42. By arranging the second control board 43 in the accommodating cavity 11 and electrically connecting the second control board 43 with the first control board 42, the laser radar provided in the embodiment can communicate between the first control board 42 and the second control board 43.

[0072] Referring to Figure 2As shown, in a specific embodiment, the laser radar in the embodiment further comprises a wireless power transmission part, the wireless power transmission part comprises a first coil 51 and a second coil 52, the first coil 51 is arranged on the side of the rotating support 41 away from the laser ranging part 20 and is electrically connected with the first control panel 42, the second coil 52 is arranged in the accommodating cavity 11 and is electrically connected with the second control panel 43, and the first control panel 42 and the second control panel 43 can transmit electric energy and signals through the first coil 51 and the second coil 52. By arranging the first coil 51 electrically connected with the first control panel 42 on the side of the rotating support 41 away from the laser ranging part 20 and arranging the second coil 52 electrically connected with the second control panel 43 in the accommodating cavity 11, the first control panel 42 and the second control panel 43 in the embodiment can transmit electric energy and signals through the first coil 51 and the second coil 52.

[0073] Referring to Figure 1 As shown, in a specific embodiment, the main body part 10 in the embodiment comprises an upper cover assembly 12 and a lower shell assembly 13, the upper cover assembly 12 is installed on the lower shell assembly 13, and the upper cover assembly 12 and the lower shell assembly 13 form an accommodating cavity 11; the first bearing assembly 31 is arranged on the upper cover assembly 12, and the second bearing assembly 32 is arranged on the lower shell assembly 13.

[0074] In an optional embodiment, the side of the rotating support 41 close to the lower shell assembly 13 is provided with a first outer circular ring 412, the side of the lower shell assembly 13 close to the rotating support 41 is provided with a second outer circular ring 131, the first coil 51 in the embodiment is sleeved on the outer sidewall of the first outer circular ring 412, and the second coil 52 is sleeved on the outer sidewall of the second outer circular ring 131.

[0075] In a specific embodiment, the support part in the embodiment further comprises a first bearing mounting seat 33, the first bearing mounting seat 33 is arranged in the accommodating cavity 11 and is fixedly connected with the upper cover assembly 12, and the first bearing assembly 31 is installed on the first bearing mounting seat 33.

[0076] In an optional embodiment, the first bearing mounting seat 33 and the upper cover assembly 12 in the embodiment are fixedly connected through the point gluing mode.

[0077] Referring to Figure 2 and 3As shown in the drawings, in a specific embodiment, the upper cover assembly 12 in the embodiment comprises an upper cover body 121, the upper cover body 121 is provided with a glue inlet hole 1211, the side of the first bearing mounting seat 33 close to the upper cover body 121 is provided with a glue containing groove 331, the position of the glue containing groove 331 corresponds to the position of the glue inlet hole 1211. By providing the glue inlet hole 1211 on the upper cover body 121 provided in the embodiment, providing the glue containing groove 331 on the side of the first bearing mounting seat 33 close to the upper cover body 121, and making the position of the glue containing groove 331 correspond to the position of the glue inlet hole 1211, the external glue dispensing equipment can dispense glue into the glue containing groove 331 through the glue inlet hole 1211, and the overflow when the dispensing amount is insufficient can be effectively prevented by providing the glue containing groove 331.

[0078] As shown in the drawings, Figure 2 and 3 As shown in the drawings, in a specific embodiment, the upper cover assembly 12 in the embodiment further comprises a first cover plate 122, the first cover plate 122 is arranged on the side of the upper cover body 121 away from the first bearing mounting seat 33 and corresponds to the position of the glue inlet hole 1211, and is used for covering the glue inlet hole 1211. By arranging the first cover plate 122 provided in the embodiment on the side of the upper cover body 121 away from the first bearing mounting seat 33 and making the position of the first cover plate 122 correspond to the position of the glue inlet hole 1211, the upper cover assembly 12 provided in the embodiment can cover the glue inlet hole 1211 through the first cover plate 122.

[0079] As shown in the drawings, Figure 2 and 3 As shown in the drawings, in a specific embodiment, the side of the first bearing mounting seat 33 close to the upper cover body 121 in the embodiment is provided with a first annular protrusion, the middle part of the first annular protrusion forms the glue containing groove 331; the side of the upper cover body 121 close to the first bearing mounting seat 33 is provided with a first anti-overflow groove 1212, the position of the first anti-overflow groove 1212 corresponds to the position of the first annular protrusion, and the end of the first annular protrusion close to the first anti-overflow groove 1212 is at least partially located in the first anti-overflow groove 1212. By arranging the first anti-overflow groove 1212 on the side of the upper cover body 121 close to the first bearing mounting seat 33 provided in the embodiment, making the position of the first anti-overflow groove 1212 correspond to the position of the first annular protrusion, and at the same time making the end of the first annular protrusion close to the first anti-overflow groove 1212 at least partially located in the first anti-overflow groove 1212, a tortuous anti-overflow channel can be formed between the first anti-overflow groove 1212 and the annular protrusion to prevent glue from overflowing.

[0080] As shown in the drawings, Figure 4 and 5As shown, in a specific embodiment, the first bearing mounting seat 33 of the present embodiment is provided with a second anti-overflow groove 333 on the side close to the upper cover body 121, and the second anti-overflow groove 333 is located on the radial outer side of the first anti-overflow groove 1212. The second anti-overflow groove 333 can further effectively prevent glue overflow.

[0081] In an alternative embodiment, the first bearing mounting seat 33 of the present embodiment is provided with a first bearing mounting hole on the side close to the laser ranging part 20, and the first bearing assembly 31 of the present embodiment is arranged in the first bearing mounting hole. The outer ring of the first bearing assembly 31 abuts against the inner wall of the first bearing mounting hole, and the outer wall of the first rotating structure 21 abuts against the inner ring of the first bearing assembly 31.

[0082] In an alternative embodiment, the first rotating structure 21 of the present embodiment is a support shaft.

[0083] In another embodiment, the first bearing mounting seat 33 of the present embodiment is provided with a first bearing mounting shaft on the side close to the laser ranging part 20, and the first bearing assembly 31 of the present embodiment is sleeved on the first bearing mounting shaft. The inner ring of the first bearing assembly 31 abuts against the outer wall of the first bearing mounting shaft, and the inner wall of the first rotating structure 21 abuts against the outer ring of the first bearing assembly 31.

[0084] In another embodiment, the first rotating structure 21 of the present embodiment is a support sleeve.

[0085] In an alternative embodiment, the first bearing mounting seat 33 of the present embodiment is provided with a fixing column 332 on the side close to the upper cover body 121. The position of the fixing column 332 corresponds to the position of the glue inlet hole 1211. The fixing column 332 of the present embodiment can be arranged in the glue inlet hole 1211 and is spaced apart from the inner side wall of the glue inlet hole 1211. Arranging the fixing column 332 in the glue inlet hole 1211 can effectively enhance the glue fixing effect.

[0086] In a specific embodiment, when the upper cover assembly 12 of the present embodiment is installed, the first bearing assembly 31 and the first bearing mounting seat 33 are first installed on the first rotating structure 21, and then the first bearing mounting seat 33 is fixed on the upper cover assembly 12 by means of glue dispensing to achieve the installation of the upper cover assembly 12. Since the cooperation between the upper cover assembly 12 and the first bearing mounting seat 33 is a clearance fit, the machining and assembly errors of the upper cover assembly 12 will not cause the coaxiality error between the first bearing assembly 31 and the second bearing assembly 32 to be enlarged, thereby maintaining the coaxiality of the first bearing assembly 31 and the second bearing assembly 32.

[0087] In an alternative embodiment, the lower shell assembly 13 provided by the embodiment is provided with a second bearing mounting seat on the side close to the rotating support 41, the second bearing mounting seat is provided with a second bearing mounting hole, the second bearing assembly 32 is arranged in the second bearing mounting hole, the outer ring of the second bearing assembly 32 abuts against the inner wall of the second bearing mounting hole, and the outer wall of the second rotating structure 22 abuts against the inner ring of the second bearing assembly 32.

[0088] In another embodiment, the second bearing mounting seat provided by the embodiment is provided with a second bearing mounting shaft, the second bearing assembly 32 provided by the embodiment is arranged on the second bearing mounting shaft, the inner ring of the second bearing assembly 32 abuts against the outer wall of the second bearing mounting shaft, and the inner wall of the second rotating structure 22 abuts against the outer ring of the second bearing assembly 32.

[0089] In an alternative embodiment, the laser radar provided by the embodiment further comprises a driving part, the driving part provided by the embodiment comprises a rotor assembly 72 and a stator assembly 71, the stator assembly 71 is sleeved on the support shaft and fixedly connected with the support shaft, and the rotor assembly 72 is sleeved on the stator assembly 71 and fixedly connected with the inner side wall of the first outer circular ring 412.

[0090] In a specific embodiment, the laser ranging part 20 in the embodiment comprises a ranging support, the first rotating structure 21 and the second rotating structure 22 are respectively arranged on the two ends of the ranging support, and the ranging support, the first rotating structure 21 and the second rotating structure 22 are integrally formed. Since the ranging support, the first rotating structure 21 and the second rotating structure 22 are integrally formed, compared with the structure of separate connection in the prior art, the machining error and the assembly error caused by the connection structure can be eliminated, thereby effectively reducing the expansion of the coaxiality error of the upper and lower parts.

[0091] In a specific embodiment, the rotor assembly 72 and the first coil 51 on the rotating support 41 provided by the embodiment are not in direct contact with the stator assembly 71 and the second coil 52, so the coaxiality requirement of the first bearing assembly 31 and the second bearing assembly 32 is lower, and by arranging the rotating support 41 and the ranging support of the laser ranging part 20 separately, the installation of the first control board 42 has a larger operation space, and the installation difficulty is reduced.

[0092] In a specific embodiment, the laser ranging part 20 provided by the embodiment further comprises a laser emitting assembly and a laser receiving assembly, the laser emitting assembly and the laser receiving assembly provided by the embodiment are arranged on the ranging support, the laser emitting assembly provided by the embodiment is used for emitting laser to the external environment, the laser receiving assembly is used for receiving the laser reflected from the external environment, and thus the ranging is realized.

[0093] In an alternative embodiment, the laser emitting assembly comprises a laser emitter and an emitting lens, and the laser receiving assembly comprises a receiving lens and a laser receiver.

[0094] According to another aspect of the present application, a mobile device is provided, comprising a laser radar, and the laser radar is the above-mentioned laser radar.

[0095] In summary, by implementing the laser radar and the mobile device provided in the embodiments, the following beneficial technical effects can be achieved: the laser radar provided in the embodiments can stably rotate in the accommodating cavity 11 by arranging the first rotating structure 21 and the second rotating structure 22 at two ends of the laser ranging part 20 respectively, coaxially arranging the first rotating structure 21 and the second rotating structure 22, supporting the first rotating structure 21 by the first bearing assembly 31, and supporting the second rotating structure 22 by the second bearing assembly 32. Compared with the prior art in which bearings are arranged at the top of the laser ranging module and the bottom of the rotating platform to support, the laser radar provided in the embodiments can support the laser ranging part 20 by the first bearing assembly 31 and the second bearing assembly 32, thereby effectively avoiding the phenomenon that the coaxiality error of the two bearings is too large due to the structural error and the installation error of the connection part between the laser ranging module and the rotating platform in the prior art.

[0096] The preferred embodiments of the present application have been described above with the preferred embodiments, but the present application is not limited to the above, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A laser radar, characterized in that: The laser radar includes: A main body (10), wherein a receiving cavity (11) is provided in the main body (10); A laser distance measuring unit (20), the laser distance measuring unit (20) being arranged in the accommodating cavity (11), a first rotating structure (21) and a second rotating structure (22) being respectively arranged at both ends of the laser distance measuring unit (20), the first rotating structure (21) and the second rotating structure (22) being coaxially arranged; A support portion, the support portion comprising a first bearing assembly (31) and a second bearing assembly (32), the first bearing assembly (31) and the second bearing assembly (32) both being arranged in the accommodating cavity (11), the first rotating structure (21) being supported by the first bearing assembly (31), and the second rotating structure (22) being supported by the second bearing assembly (32), so that the laser ranging portion (20) can be rotatably mounted in the accommodating cavity (11).

2. The laser radar according to claim 1, characterized in that The laser radar further includes a control unit, which includes a rotating bracket (41) and a first control board (42). The rotating bracket (41) is fixedly connected to the laser distance measuring unit (20). The first control board (42) is clamped between the laser distance measuring unit (20) and the rotating bracket (41) and is electrically connected to the laser distance measuring unit (20). The first control panel (42) is provided with a first giving way structure (421), the rotating bracket (41) is provided with a second giving way structure (411), and the second rotating structure (22) passes through the first giving way structure (421) and the second giving way structure (411) in sequence to be connected to the second bearing assembly (32).

3. The laser radar according to claim 2, characterized in that The second rotating structure (22) is an annular structure provided with at least one notch, wherein: The second rotating structure has a plurality of notches, the second rotating structure includes a plurality of supporting protrusions, the plurality of supporting protrusions are arranged at intervals along the rotation direction of the laser distance measuring unit (20) to form a plurality of notches, the first yielding structure (421) includes a plurality of first yielding holes, the second yielding structure (411) includes a second yielding hole, the supporting protrusions sequentially pass through the first yielding holes and the second yielding holes to connect with the second bearing assembly (32); Alternatively, the notch on the second rotating structure is one, the second rotating structure is a C-shaped ring structure, the first giving way structure includes a first giving way hole, the first giving way hole is a C-shaped hole structure corresponding to the second rotating structure, the second giving way structure (411) includes a second giving way hole, and the second rotating structure passes through the first giving way hole and the second giving way hole in sequence to be connected to the second bearing assembly (32).

4. The laser radar according to claim 3, characterized in that Reinforcement ribs are provided on the inner side wall of the second rotating structure and / or the outer side wall of the second rotating structure.

5. The laser radar according to claim 1, characterized in that The second rotating structure is provided with a step structure, and the step structure can abut against the end of the second bearing assembly to limit the second rotating structure.

6. The laser radar according to claim 3, characterized in that The laser radar further includes a communication unit, the communication unit including a first communication component (61) and a second communication component (62), the control unit further includes a second control board (43), and the second control board (43) is arranged in the accommodating cavity (11); The first communication component (61) is arranged on a side of the first control board (42) close to the second control board (43) and is located in a space surrounded by the second rotating structure, and the first communication component can be electrically connected to the first control board (42) through the gap; The second communication component (62) is arranged on a side of the second control board (43) close to the first control board (42) and is electrically connected to the second control board (43); The position of the second communication component (62) corresponds to the position of the first communication component (61), and the first control board (42) and the second control board (43) can communicate wirelessly through the first communication component (61) and the second communication component (62).

7. The laser radar according to any one of claims 1 to 6, characterized in that: The main body (10) comprises an upper cover assembly (12) and a lower shell assembly (13), the upper cover assembly (12) is mounted on the lower shell assembly (13), and the upper cover assembly (12) and the lower shell assembly (13) form the accommodating cavity (11); The first bearing assembly (31) is arranged on the upper cover assembly (12), and the second bearing assembly (32) is arranged on the lower shell assembly (13); The support portion further includes a first bearing mounting seat (33), the first bearing mounting seat (33) being disposed in the accommodating cavity (11) and fixedly connected to the upper cover assembly (12), and the first bearing assembly (31) being mounted on the first bearing mounting seat (33).

8. The laser radar according to claim 7, characterized in that The upper cover assembly (12) comprises an upper cover body (121), a glue inlet hole (1211) is provided on the upper cover body (121), and a glue containing groove (331) is provided on a side of the first bearing mounting seat (33) close to the upper cover body (121), and the position of the glue containing groove (331) corresponds to the position of the glue inlet hole (1211); A first annular protrusion is provided on one side of the first bearing mounting seat (33) close to the upper cover body (121), and the middle portion of the first annular protrusion forms the glue containing groove (331); A first anti-overflow groove (1212) is provided on one side of the upper cover body (121) close to the first bearing mounting seat (33); the position of the first anti-overflow groove (1212) corresponds to the position of the first annular protrusion; and one end of the first annular protrusion close to the first anti-overflow groove (1212) is at least partially located in the first anti-overflow groove (1212); A second anti-overflow groove (333) is provided on a side of the first bearing mounting seat (33) close to the upper cover body (121), and the second anti-overflow groove (333) is located radially outside the first anti-overflow groove (1212).

9. The laser radar according to any one of claims 1 to 6, characterized in that: The laser ranging unit comprises a ranging bracket, and the first rotating structure (21) and the second rotating structure (22) are respectively provided at both ends of the ranging bracket. The ranging bracket, the first rotating structure (21) and the second rotating structure (22) are integrally formed.

10. A mobile device, characterized in that: The mobile device includes a laser radar, which is the laser radar described in any one of claims 1 to 9.

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