CN109613516B - Laser radar optical assembly mounting bracket - Google Patents
Laser radar optical assembly mounting bracket Download PDFInfo
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- CN109613516B CN109613516B CN201811366934.1A CN201811366934A CN109613516B CN 109613516 B CN109613516 B CN 109613516B CN 201811366934 A CN201811366934 A CN 201811366934A CN 109613516 B CN109613516 B CN 109613516B
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- 230000003287 optical effect Effects 0.000 title claims abstract description 31
- 238000009434 installation Methods 0.000 description 17
- 230000000149 penetrating effect Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
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- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
The invention relates to the technical field of laser radars, and particularly discloses a laser radar optical assembly mounting bracket which comprises a mounting plate, wherein the mounting plate comprises a first mounting part and a second mounting part, the second mounting part is arranged below the first mounting part, at least one first mounting hole is formed in the first mounting part, and at least one second mounting hole is formed in the second mounting part. The invention solves the problems of complex structure, large volume and difficult adjustment of the wire harness in the prior art.
Description
Technical Field
The invention relates to the technical field of laser radar installation, in particular to a laser radar optical component installation support.
Background
In the automatic driving technology, an environment sensing system is a basic and crucial ring and is a guarantee for the safety and intelligence of an automatic driving automobile, and a laser radar in an environment sensing sensor has incomparable advantages in the aspects of reliability, detection range, distance measurement precision and the like. The laser radar analyzes the turn-back time of the laser after encountering the target object by transmitting and receiving the laser beam, and calculates the relative distance between the target object and the vehicle.
On one hand, the vehicle-mounted laser radar is used as an important sensor for sensing surrounding information, and the field of view and the scanning accuracy are important parameters of the vehicle-mounted laser radar. The larger the field of view, the richer the information, the more favorable it is for automatic driving decisions. The field of view of the laser radar adopting scanning modes such as the MEMS mirror is usually limited by the size of the scanning field of view of the scanning device, and the scanning accuracy is limited by the vibration frequency of the scanning device. The field angle is usually enlarged by disposing an optical lens in front of the scanning device, or a plurality of laser radars are disposed to splice the collected fields. The front lens group requires a more complicated lens group to enlarge the field angle, and the enlarged field angle reduces the effective aperture in equal proportion, thereby reducing the distance measurement capability of the laser radar. In addition, the multiple lidar splicing approach can significantly increase overall cost.
On the other hand, the laser radar needs to satisfy the performances of small volume, high reliability, high imaging frame frequency, high resolution, long-range measurement and the like. Many components and parts that contain in the laser radar, for example light source, detector, integrated circuit board, lead wire all need carry out reasonable structural design to satisfy the market to its small demand of volume, do not influence the realization of other technical index simultaneously. However, it is difficult for the existing lidar system to achieve balance between small volume and multiple performance parameters, how to reasonably arrange the internal space of the lidar, and on the premise of satisfying the specific optical path design, to improve the space utilization rate, make the structure thereof more compact, so as to increase the application scenarios thereof, and still there is a need for improvement in the development of the lidar at present. In addition, the unreasonable structural design of the laser radar in the prior art may cause the problems of poor heat dissipation performance, low signal-to-noise ratio and the like of the light source.
Disclosure of Invention
The invention aims to solve the technical problems that the laser radar in the prior art is complex in structure, the optical assembly is complex to install, the structure is not compact, and the wiring harness is difficult to adjust.
In order to solve the technical problem, the application provides a laser radar optical component mounting bracket,
the laser radar optical assembly mounting bracket comprises a mounting plate, a first side plate and a second side plate,
the mounting plate comprises a first mounting part and a second mounting part, the second mounting part is arranged below the first mounting part,
the first mounting part is provided with at least one first mounting hole, the second mounting part is provided with at least one second mounting hole, the first mounting hole and the second mounting hole are in one-to-one correspondence,
the first side plate and the second side plate are respectively arranged on two sides of the mounting plate.
Furthermore, the side faces of the first side plate and the second side plate, which are deviated from each other, are provided with concave parts for mounting the light shielding plates.
Preferably, the first side plate and the second side plate are provided with mounting holes or supporting grooves.
Further, the installing support still includes the extension board, the extension board with the second installation department links to each other, and follows and deviates from the direction of second installation department extends, the extension board sets up the below of second mounting hole.
Furthermore, a cutting groove is further formed in the second mounting portion, the cutting groove and the extension plate are arranged on the same side, and the cutting groove is communicated with the second mounting hole.
Further, the installing support still includes the backup pad, the backup pad with first installation department links to each other, the backup pad with the extension board sets up the both sides that deviate from each other at the mounting panel.
Further, the backup pad includes supporting part and fixed part, supporting part one end with the second installation department links to each other, the other end of supporting part with the fixed part links to each other, the fixed part is used for fixed prism and/or prism support.
Furthermore, a second preset included angle is formed between the top plane of the supporting plate or the prism support and the horizontal plane.
By adopting the technical scheme, the laser radar optical component mounting bracket has the following beneficial effects:
1) the invention has simple structure and can meet the installation and adjustment of the laser radars with different wire harnesses;
2) in the invention, the supporting and fixing of the prism or the prism support are realized through the supporting plate, so that the prism support or the prism is flexible to disassemble and assemble;
3) in the invention, two adjacent second mounting holes or two adjacent first mounting holes are separated by the self-weighing plate, so that mutual interference between light paths is effectively avoided;
4) according to the invention, the inverted-S-shaped structures can be arranged on the first side plate and the second side plate, and the inverted-S-shaped structures can effectively avoid an effective avoidance space when a vehicle runs, so that the prism can be effectively prevented from interfering with the side plates when being installed.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural view of a laser radar optical assembly mounting bracket according to embodiment 1;
FIG. 2 is a schematic view from another perspective of FIG. 1;
FIG. 3 is a front view of FIG. 1;
FIG. 4 is a rear view of FIG. 1;
FIG. 5 is a side view of FIG. 1;
FIG. 6 is a top view of FIG. 1;
FIG. 7 is a cross-sectional view taken along line A-A of FIG. 6;
FIG. 8 is a schematic structural view of a side plate according to embodiment 1;
FIG. 9 is a schematic structural view of a lidar optical assembly mounting bracket according to embodiment 2;
FIG. 10 is a schematic structural view of a lidar optical assembly mounting bracket of embodiment 3;
in the drawings, 1-a mounting plate, 11-a first mounting part, 111-a first mounting hole, 112-a first side face, 113-a second side face, 114-a chamfered face, 115-a mounting groove, 12-a second mounting part, 121-a second mounting hole, 122-a third side face, 123-a fourth side face, 124-a cutting groove, 125-a step, 13-a support plate, 131-a support part, 132-a fixing part, 133-a first groove, 134-a second groove, 14-a transition block mounting hole, 15-a fixing hole, 2-a side plate, 21-a first side plate, 22-a second side plate, 23-a first face, 231-a first plane, 232-a second plane, 24-a second face, 241-a first facet, 242-a second facet, 243-a step face, 2431-a first step facet, 2432-a second step facet, 2433-a third step facet, 25-a third face, 251-a connecting hole, 252-a positioning hole, 26-a fourth face, 27-a fifth face, 28-bevel, 281-mounting hole, 29-support groove, 3-extension plate.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the invention. In the description of the present invention, it is to be understood that the terms "upper", "top", "bottom", and the like, as used herein, refer to an orientation or positional relationship based on that shown in the drawings, which is for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be taken as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein.
Example 1:
in order to solve the problems in the prior art, the invention provides a laser radar optical assembly mounting bracket which is used for mounting and fixing an optical assembly, wherein the optical assembly comprises a lens assembly and a prism, and the prism is fixedly arranged on the mounting bracket through a prism bracket.
The optical component mounting bracket comprises a first side plate 21, a second side plate 22 and a mounting plate 1, wherein the first side plate 21 and the second side plate 22 are respectively arranged at two ends of the mounting plate 1, the mounting plate 1 comprises a first mounting part 11 and a second mounting part 12, the second mounting part 12 is arranged below the first mounting part 11,
the second mounting portion 12 is provided with at least one second mounting hole 121, the first mounting portion 11 is provided with at least one first mounting hole 111, at least one prism is clamped between the first side plate 21 and the second side plate 22, the prism is arranged above the first mounting hole 111, and the second mounting hole 121, the first mounting hole 111 and the prisms are in one-to-one correspondence in number. The second mounting hole 121 is used for passing through the light beam emitted by the emission system, and the first mounting hole 111 is used for mounting the lens group. Preferably, the first mounting hole 111 is used for mounting a light receiving lens assembly, and the second mounting hole 121 is used for mounting a light emitting lens assembly.
The first mounting portion 11 includes a first side 112 and a second side 113 that are oppositely disposed, the second mounting portion 12 includes a third side 122 and a fourth side 123 that are oppositely disposed, the first side 112 and the third side 122 are flush, the second side 113 is disposed inside the fourth side 123, that is, the distance between the first side 112 and the second side 113 is smaller than the distance between the third side 122 and the fourth side 123.
Further, the second side surface 113 is further provided with a transfer block mounting hole 14 for mounting a transfer block, and the transfer block is used for transferring a circuit board.
Specifically, in a preferred embodiment, the second mounting portion 12 and the first mounting portion 11 are integrally formed to form an L-shaped structure, the second mounting portion 12 is a horizontal portion of the L-shaped structure, and the first mounting portion 11 is a vertical portion of the L-shaped structure.
In the present embodiment, the first side plate 21 and the second side plate 22 are symmetrical structures. In the following, a general term "side panel" is used for the first side panel 21 and the second side panel 22, said side panels comprising a first face 23 and a second face 24, said first face 23 and said second face 24 being arranged opposite to each other. Further, the curb plate still includes third face 25, fourth face 26, fifth face 27, sixth and inclined plane 28, third face 25 and fourth face 26 set up relatively, fifth face 27 and sixth set up relatively, fifth face 27 does the top surface of curb plate, the sixth does the bottom surface of curb plate, inclined plane 28 on one side with third face 25 links to each other, inclined plane 28 the another side with fifth face 27 links to each other, the sixth with second installation department 12 links to each other. The third surface 25 is provided with a positioning hole 252 and a connecting hole 251, the positioning between the optical component mounting bracket and the emission mounting bracket is realized through the positioning hole 252, and the connection between the optical component mounting bracket and the emission mounting bracket is realized through the connecting hole 251.
It will be appreciated that because the first side panel 21 and the second side panel 22 are symmetrical structures, the components of the "first", "second", etc. and other side panels mentioned above and below refer to corresponding locations on the first side panel 21 and the second side panel 22.
The first surfaces 23 of the first side plate 21 and the second side plate 22 are connected to two ends of the mounting plate 1, respectively. Preferably, the first surface 23 includes a first plane 231 and a second plane 232, and the first plane 231 and the second plane 232 are connected by an arc structure. The distance between the first plane 231 of the first side plate 21 and the first plane 232 of the second side plate 22 is smaller than the distance between the second plane 231 of the two side plates. Preferably, the arc-shaped structure is in an inverted S shape.
It is understood that the first surface 23 may be a plane, that is, the first plane 231 and the second plane 232 constitute a whole plane, and the above structure is only a preferred embodiment and is not limited thereto.
The recessed portion is disposed on the second surface 24, and divides the second surface 24 into a first sub-surface 241, a second sub-surface 242, and a step surface 243, one side of the step surface 243 is connected to the first sub-surface 241, and the other side of the step surface 243 is connected to the second sub-surface 242; the stepped surface 243 has a zigzag structure, and the width of the stepped surface 243 indicates the depth of the recess of the recessed portion. Step face 243 divides face 2431, second step branch face 2432 and third step branch face 2433 including the first step that links to each other in proper order, first step divides face 2431 to include first connecting edge and second connecting edge, first step divide face 2431 with the second step divides the intersect of face 2432 to be first connecting edge, first step divide face 2431 with the intersect of inclined plane 28 is the second connecting edge.
At least one supporting plate 13 protrudes from the second side surface 112 of the first mounting portion 11, and the supporting plate 13 is used for supporting a prism and/or a prism support. Preferably, in this embodiment, the supporting plate 13 includes a supporting portion 131 and a fixing portion 132, one end of the supporting portion 131 is connected to the second mounting portion 12, the other end of the supporting portion 131 is connected to the fixing portion 132, the fixing portion 132 is used for fixing the prism and the prism support, and the prism support is used for supporting and fixing the prism.
In a preferred embodiment, the third side 122 of the second mounting portion 12 is spaced with 4 identical second mounting holes 121 for passing light beams emitted from the light emitting system, and each second mounting hole 121 penetrates the third side 122 and the fourth side 123. The first side surface 112 of the first mounting portion 11 is provided with 4 identical first mounting holes 111 at intervals, each first mounting hole 111 penetrates through the first side surface 112 and the second side surface 113, and each first mounting hole 111 is correspondingly provided with a lens group. The second side 113 of the first mounting portion 11 has 3 supporting plates 13 protruding thereon, and 4 prisms are sandwiched between the first side plate 21 and the second side plate 22. The 3 support plates 13 are arranged between the first side plate 21 and the second side plate 22 at intervals, and each support plate 13 is arranged between the adjacent first mounting holes 111 at intervals. The 4 prisms are arranged between the side plates and the support plates 13 arranged at intervals or between the support plates 13 arranged at intervals through the prism support, namely, the gap between the side plates and the prism support plates or between the support plates 13 and the support plates 13, so that incident light or emergent light can be conveniently emitted into the prisms through the gap or pass through the light emitted from the prisms. The second mounting holes 121, the first mounting holes 111 and the prisms are arranged in a one-to-one correspondence.
The second mounting hole 121 has at least one step 125 formed therein in a penetrating direction thereof. In a preferred embodiment, the number of the steps 125 is 2, and the first step and the second step divide the second mounting hole 121 into a first light emission branch hole, a second light emission branch hole, and a third light emission branch hole. The first light emission sub-hole, the second light emission sub-hole, and the third light emission sub-hole are sequentially arranged in a direction from the third side surface 122 to the fourth side surface 123. The peripheral circumference of the at least one step 125 increases in sequence in a direction away from the third side surface 122, that is, the sectional circumferences of the first light emitting branch hole, the second light emitting branch hole, and the third light emitting branch hole increase in sequence. I.e. the light emission apertures decrease in order in the direction from said fourth side 123 towards the third side 122 (the direction of incidence of the light). Preferably, the first light emission branch hole, the second light emission branch hole and the third light emission branch hole are all rectangular structures, and light beams can be gathered when light is incident to a target object while incident light emission is not blocked by arranging the light emission branch holes which are sequentially reduced along the light emission direction.
It is to be understood that the step 125 provided in the second mounting hole 121 and the number of the steps provided are only one preferred embodiment and are not limited thereto. In other embodiments, the second mounting hole 121 may not have the step 125, or the number of the steps 125 may be 1, that is, the second mounting hole 121 is divided into 2 light emitting sub-holes.
The first mounting hole 111 is provided therein with a plurality of mounting grooves 115 in a penetrating direction thereof. The mounting groove 115 is used for mounting the lens assembly. Preferably, in this embodiment, the number of the mounting grooves 115 is 4. The mounting grooves 115 have various sizes. Specifically, the mounting grooves 115 include a first mounting groove, a second mounting groove, a third mounting groove and a fourth mounting groove sequentially arranged from the third side 122 to the fourth side 123, and the lens assembly is disposed in the mounting groove 115 in the first mounting hole 111. Preferably, the first mounting hole 111 is a circular structure, and the diameters of the first mounting groove, the second mounting groove, the third mounting groove and the fourth mounting groove are sequentially reduced.
Specifically, 3 backup pads 13 include first backup pad, second backup pad and third backup pad, first backup pad, second backup pad and third backup pad interval set up between first curb plate 21 and the second curb plate 22, just backup pad 13 with also be the interval setting between the curb plate.
The first supporting plate comprises a first fixing part and a first supporting part, and the first fixing part is arranged on the first supporting part. First supporting part one end with second installation department 12 links to each other, the other end of first supporting part with first fixed part links to each other, first fixed part is used for fixing the prism support. The first supporting part is of a plate-shaped structure. The first supporting portion comprises a first end portion and a second end portion, the first end portion and the second end portion are arranged oppositely, the first end portion is connected with the second mounting portion, and the second end portion is connected with the first fixing portion. The first fixing part is of a rectangular block structure. The top plane of the first fixing part is the top plane of the first supporting plate. The top plane and the horizontal plane form a second preset included angle. The range of the second preset included angle is 0-45 degrees, preferably, in the embodiment, the second preset included angle is preferably 30 degrees.
Further, the first fixing portion further comprises a first mounting surface and a second mounting surface, the first mounting surface and the second mounting surface are arranged oppositely, a first groove 133 is formed in the first mounting surface, a second groove 134 is formed in the second mounting surface, and the first groove 133 and the second groove 134 are arranged oppositely. The first and second grooves 133 and 134 are used to support the prism.
The fillet is excessively arranged between the first fixing part and the first supporting part.
The second support plate comprises a second fixing part and a second support part, and the second fixing part is arranged on the second support part. One end of the second supporting part is connected with the second mounting part 12, the other end of the second supporting part is connected with the second fixing part, and the second fixing part is used for fixing the prism support. The second supporting part is of a plate-shaped structure. The second supporting part comprises a third end part and a fourth end part, the third end part and the fourth end part are oppositely arranged, the third end part is connected with the second mounting part, and the fourth end part is connected with the second fixing part. The second fixing part is of a rectangular block structure, the top plane of the second fixing part is the top plane of the second supporting plate, and the top plane is parallel to the top plane of the first fixing part.
The first fixing part is in fillet transitional connection with the first supporting part.
The third supporting plate comprises a third fixing part and a third supporting part, and the third fixing part is arranged on the third supporting part. Preferably, in this embodiment, the third support plate is the same as the second support plate, and the second support plate and the third support plate are symmetrically disposed on two sides of the second support plate.
All be provided with mounting hole 281 on the inclined plane 28 of first curb plate 21 and second curb plate 22, mounting hole 281 is used for the fixed prism support of installation, the arc structure on first curb plate 21 and the second curb plate 22 is as the space is dodged to the prism support, avoid the prism support with take place to interfere between the first face 23.
It is to be understood that, in the above embodiment, the number, shape and size of the second mounting holes 121, the first mounting holes 111, the prisms and the support plate 13 are only one preferable solution, and are not limited thereto. In other practical solutions, the number of the second mounting holes 121, the first mounting holes 111, and the prisms may be 1, 2, or any number as required to meet the requirement. The number of the supporting plates 13 can be 1, 2 or any number which can meet the requirement according to the requirement. The second mounting hole 121 may also have a circular, kidney-shaped or other shape. The plurality of second mounting holes 121, the plurality of first mounting holes 111, and the plurality of prisms may be the same or different. And is not limited thereto.
Still be provided with fixed orifices 15 on the first side 112 of first installation department 11, fixed orifices 15 set up around first mounting hole 111, as preferred, every first mounting hole 111 all around the equal rectangle distribute have four fixed orifices 15, fixed orifices 15 are used for fixed clamp plate, the clamp plate is owing to fix the lens subassembly.
Further, the mounting bracket further includes an extension plate 3, the extension plate 3 is connected to the second mounting portion 12 and extends along a direction away from the third side 122, and the extension plate 3 is disposed below the second mounting hole 121. Preferably, the extension plate 3 is integrally formed with the mounting bracket. Extension plate 3 includes bottom surface and top surface, the bottom surface with the bottom plane parallel and level of second installation department 12, the top surface with second mounting hole 121 is close to the pitch arc of second installation department 12 bottom is tangent. The extension plate 3 is provided with a plurality of through holes and/or a plurality of blind holes for fixing or positioning other mounting components.
The fourth side 123 of the second mounting portion 12 is further provided with a cutting slot 124, and the cutting slot 124 is communicated with the second mounting hole 121. Preferably, the slot 124 is located away from the bottom of the second mounting portion 12.
Example 2:
in order to solve the problems of the prior art, the present invention provides another structure of the mounting bracket for the lidar optical assembly, which is different from embodiment 1 in that the first predetermined angle between the inclined plane 114 and the horizontal plane is preferably 45 °.
Further, in this embodiment, the mounting plate 1 is provided with a second mounting hole 121 and a first mounting hole 111, and 1 prism is clamped between the first side plate 21 and the second side plate 22. The first side plate 21 and the second side plate 22 each include a first surface 23 and a second surface 24, the first surface 23 and the second surface 24 are disposed opposite to each other, and the first surface 23 and the second surface 24 are both planar surfaces.
The positions of the second mounting holes 121, the first mounting holes 111 and the prisms are in one-to-one correspondence. The second mounting hole 121 penetrates the third side 122 and the fourth side 123 of the second mounting portion 12, and preferably, the hole diameter of the second mounting hole 121 is the same throughout the penetrating length thereof. The light receiving 111 hole penetrates through the first side surface 112 and the second side surface 113 of the first mounting portion 11, the aperture of the first mounting hole 111 is the same everywhere in the penetrating length, the lens assembly is arranged in the first mounting hole 111, and the lens assembly and the first mounting hole are fixed in a gluing mode.
The first surfaces 23 of the first side plate 21 and the second side plate 22 are respectively provided with a supporting groove 29, the supporting grooves 29 are used for installing and fixing prisms, and preferably, two ends of the prisms are respectively fixed on the supporting grooves 29 of the first side plate 21 and the second side plate 22 by gluing.
The fourth side 123 of the second mounting portion 12 is further provided with a cutting slot 124, and the cutting slot 124 is communicated with the second mounting hole 121. Preferably, the slot 124 of the second mounting hole 121 is disposed near the bottom of the second mounting portion 12.
Example 3:
in order to solve the problems of the prior art, the present invention provides another structure of the mounting bracket for the lidar optical assembly, which is different from embodiment 1 in that the first predetermined angle between the inclined plane 114 and the horizontal plane is preferably 45 °.
In this embodiment, the second mounting portion 12 is provided with 2 second mounting holes 121, the first mounting portion 11 is provided with 2 first mounting holes 111, and 2 prisms are sandwiched between the first side plate 21 and the second side plate 22.
The positions of the second mounting holes 121, the first mounting holes 111 and the prisms are in one-to-one correspondence. The second mounting hole 121 penetrates the third and fourth side surfaces 122 and 123 of the second mounting portion 12, and at least one step 125 is provided in the second mounting hole 121 in a penetrating direction thereof. In a preferred embodiment, the number of the steps 125 is 1, and the step 125 divides the second mounting hole 121 into a fourth light emission branch hole and a fifth light emission branch hole. The fourth light emission sub-hole and the fifth light emission sub-hole are sequentially arranged in a direction from the third side surface 122 to the fourth side surface 123. The peripheral circumference of the at least one step 125 sequentially increases in a direction away from the third side surface 122, that is, the sectional circumferences of the fourth light emission branch hole and the fifth light emission branch hole sequentially increase, that is, the light emission branch holes sequentially decrease in a direction (incident direction of light) from the fourth side surface 123 toward the third side surface 122. Preferably, the fourth light emission branch hole and the fifth light emission branch hole are both rectangular structures, and light beams can be gathered when the light is projected to a target object while incident light emission is not blocked by arranging the light emission branch holes which are sequentially reduced along the light emission direction.
It is to be understood that the step 125 is provided in the second mounting hole 121 and the number of the steps 125 is only one preferred embodiment and is not limited thereto.
The first mounting hole 111 is provided therein with a plurality of mounting grooves 115 in a penetrating direction thereof. The mounting groove 115 is used for mounting the lens assembly. Preferably, in this embodiment, the plurality of mounting grooves 115 have the same size, and a space ring is formed between adjacent mounting grooves 115. The spacer is used to fill gaps between adjacent components in the lens assembly. Preferably, the lens assembly is embedded in the mounting groove 115 of the first mounting hole 111, and the first mounting hole 111 has a circular structure.
Further, in this embodiment, the number of the support plates 13 is 1, and each of the support plates 13 includes a first plate surface, a second plate surface, a third plate surface, a fourth plate surface, a fifth plate surface and a sixth plate surface, where the first plate surface and the second plate surface are arranged oppositely, the third plate surface and the fourth plate surface are arranged oppositely, the fifth plate surface and the sixth plate surface are arranged oppositely, the first plate surface is connected to the second side surface, and the second plate surface is flush with the fourth side surface; third face and fourth face all with second installation department fillet excessively connects, the fifth face with second installation department 12 links to each other, the sixth face is promptly the top plano of backup pad, be the second between sixth face and the horizontal plane and predetermine the contained angle, the scope of the second predetermined contained angle is 0 ~ 45, and is preferred, in this embodiment, the second predetermined contained angle is preferred 45. The third plate surface is used for supporting the prism support, a first supporting table and a second supporting table are arranged on the prism support, and the first supporting table and the second supporting table are arranged oppositely to support the prism. One end of the two prisms is arranged on the prism support fixed on the first side plate, the other end of the two prisms is arranged on the first supporting table, the other end of the two prisms is arranged on the prism support fixed on the second side plate, and the other end of the two prisms is arranged on the second supporting table.
Further, in the present embodiment, the cutting groove 124 provided on the fourth side 123 of the second mounting portion 12 is provided along the periphery of the second mounting hole 121. Preferably, the slot 124 communicates with the second mounting hole 124.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The mounting bracket for the optical assembly of the laser radar is characterized in that the mounting bracket for the optical assembly is used for mounting and fixing the optical assembly, the optical assembly comprises a light receiving lens assembly, a light emitting lens assembly and a plurality of prisms, the mounting bracket comprises a mounting plate (1), a supporting plate (13), a first side plate (21) and a second side plate (22), and the first side plate (21) and the second side plate (22) are respectively arranged on two sides of the mounting plate (1);
the mounting plate (1) comprises a first mounting part (11) and a second mounting part (12), the second mounting part (12) is arranged below the first mounting part (11), a plurality of first mounting holes (111) for mounting the light receiving lens assembly are formed in the first mounting part (11), and a plurality of second mounting holes (121) for mounting the light emitting lens assembly are formed in the second mounting part (12);
the supporting plate (13) is arranged between two adjacent first mounting holes (111);
the prism is clamped between the first side plate (21) and the second side plate (22), the prism is arranged above the first mounting hole (111), and the number of the prisms, the first mounting hole (111) and the second mounting hole (121) corresponds to one another.
2. Lidar optical assembly mounting bracket of claim 1, wherein the first side plate (21) and the second side plate (22) are provided with mounting holes (281) or support slots (29).
3. The lidar optical assembly mounting bracket of claim 1, further comprising an extension plate (3), wherein the extension plate (3) is connected to the second mounting portion (12) and extends in a direction away from the second mounting portion (12), and wherein the extension plate (3) is disposed below the second mounting hole (121).
4. The lidar optical assembly mounting bracket of claim 3, wherein the second mounting portion (12) further comprises a slot (124), the slot (124) is disposed on a side opposite to the extension plate (3) of the second mounting portion (12), and the slot (124) is communicated with the second mounting hole (121).
5. Lidar optical assembly mounting bracket according to claim 3 or 4, wherein said support plate (13) is connected to said first mounting portion (11), said support plate (13) and said extension plate (3) being arranged at two sides of the mounting plate (1) facing away from each other.
6. Lidar optical assembly mounting bracket according to claim 5, wherein the support plate (13) comprises a support portion (131) and a fixing portion (132), the support portion (131) being connected to the second mounting portion (12) at one end, the support portion (131) being connected to the fixing portion (132) at the other end, the fixing portion (132) being adapted to fix the prism and/or prism bracket.
7. An optical component mounting bracket according to claim 6, wherein the top plane of the support plate (13) or the prism bracket is at a second predetermined angle to the horizontal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811366934.1A CN109613516B (en) | 2018-11-16 | 2018-11-16 | Laser radar optical assembly mounting bracket |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811366934.1A CN109613516B (en) | 2018-11-16 | 2018-11-16 | Laser radar optical assembly mounting bracket |
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| Publication Number | Publication Date |
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| CN109613516A CN109613516A (en) | 2019-04-12 |
| CN109613516B true CN109613516B (en) | 2021-12-14 |
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| CN108445467A (en) * | 2018-03-26 | 2018-08-24 | 宁波傲视智绘光电科技有限公司 | A kind of scanning laser radar system |
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| CN102381481A (en) * | 2011-08-01 | 2012-03-21 | 四川省科学城久利科技实业有限责任公司 | Unmanned aerial vehicle-mounted laser radar system |
| US9638799B2 (en) * | 2012-11-21 | 2017-05-02 | Nikon Corporation | Scan mirrors for laser radar |
| CN103293531B (en) * | 2013-05-23 | 2016-01-06 | 奇瑞汽车股份有限公司 | A kind of laser radar |
| US9658322B2 (en) * | 2014-03-13 | 2017-05-23 | Garmin Switzerland Gmbh | LIDAR optical scanner system |
| CN105241481B (en) * | 2015-10-08 | 2017-08-25 | 许继电源有限公司 | A kind of laser detector and its prism fixing device |
| CN206331180U (en) * | 2016-08-31 | 2017-07-14 | 武汉高思光电科技有限公司 | A kind of laser scanning device with hollow shaft |
| CN106324582A (en) * | 2016-10-28 | 2017-01-11 | 深圳市镭神智能***有限公司 | Laser radar system based on time of flight |
| CN206223978U (en) * | 2016-11-08 | 2017-06-06 | 上海禾赛光电科技有限公司 | Vehicle-mounted multi-line laser radar and vehicle |
| CN207586427U (en) * | 2017-08-21 | 2018-07-06 | 深圳市镭神智能***有限公司 | A kind of multi-line laser radar |
| CN108227183B (en) * | 2018-02-09 | 2024-05-17 | 深圳市砝石激光雷达有限公司 | Rotary laser scanning device |
| CN108663757B (en) * | 2018-04-03 | 2020-11-03 | 上海禾赛科技股份有限公司 | Light-emitting angle control device |
| CN108761471B (en) * | 2018-06-08 | 2024-04-30 | 上海禾赛科技有限公司 | Laser radar |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203287570U (en) * | 2013-06-04 | 2013-11-13 | 上海无线电设备研究所 | Optical system structure with transmitting optical axis and receiving optical axis being parallel |
| CN108445467A (en) * | 2018-03-26 | 2018-08-24 | 宁波傲视智绘光电科技有限公司 | A kind of scanning laser radar system |
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| CN109613516A (en) | 2019-04-12 |
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Address after: No.2 building, no.468 xinlai Road, Jiading District, Shanghai, 201821 Applicant after: Shanghai Hesai Technology Co.,Ltd. Address before: No.2 building, no.468 xinlai Road, Jiading District, Shanghai, 201821 Applicant before: Shanghai Hesai Technology Co., Ltd |
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