CN218213434U - Hall angle detection structure, laser radar and radar product - Google Patents
Hall angle detection structure, laser radar and radar product Download PDFInfo
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- CN218213434U CN218213434U CN202222526915.9U CN202222526915U CN218213434U CN 218213434 U CN218213434 U CN 218213434U CN 202222526915 U CN202222526915 U CN 202222526915U CN 218213434 U CN218213434 U CN 218213434U
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- permanent magnet
- magnet mounting
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- mounting seat
- hall angle
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Abstract
The utility model relates to a Hall angle detection structure, laser radar and radar product, the structure comprises a permanent magnet mounting seat which rotates synchronously with a reflector of the laser radar, and a plurality of permanent magnets which are distributed in an annular shape are arranged on the permanent magnet mounting seat; the Hall angle detection structure also comprises a Hall sensor arranged on one side of the permanent magnet mounting seat; when the permanent magnet mounting seat rotates, the permanent magnets sequentially pass through the induction area of the Hall sensor; use the novel hall angle detection structure of this application, when laser radar's speculum piece rotates, permanent magnet mount pad and speculum piece synchronous rotation, a plurality of permanent magnet pass through hall sensor's induction zone in proper order for hall sensor senses the magnetic signal that changes, and then sends different level signal according to setting for, according to the grasp turned angle that just can be accurate to level signal's analysis, use the promotion laser radar that this kind of mode can the preferred to carry out the anti light characteristic that the angle detected.
Description
Technical Field
The utility model relates to a laser radar technical field, more specifically say, relate to a hall angle detects structure, laser radar and radar goods.
Background
Among the prior art, laser radar's angle detection function is realized through circular grating chi and opto-coupler cooperation: when the rotating circular grating ruler blocks infrared light emitted by the optocoupler, the optocoupler outputs level signals with variable heights, and the laser radar finishes the function of angle detection;
due to the complex use environment of the laser radar, if the laser radar is used in an environment with infrared interference under sunlight, the infrared can interfere with the signal output by the optical coupler, so that the angle detection of the laser radar is wrong, and the use of the laser radar is limited;
there is a need for a hall angle detection structure that can improve the light immunity of a radar.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to prior art's above-mentioned defect, provide a hall angle detection structure, still provide a laser radar and a radar goods.
The utility model provides a technical scheme that its technical problem adopted is:
the Hall angle detection structure comprises a permanent magnet mounting seat rotating synchronously with a reflector of a laser radar, wherein a plurality of permanent magnets distributed in an annular shape are arranged on the permanent magnet mounting seat; the Hall angle detection structure also comprises a Hall sensor arranged on one side of the permanent magnet mounting seat; when the permanent magnet mounting seat rotates, the plurality of permanent magnets sequentially pass through the induction area of the Hall sensor.
Hall angle detect structure, wherein, permanent magnet 'S the N utmost point or the S utmost point orientation the middle part of permanent magnet mount pad is regional, adjacent permanent magnet' S the deviation permanent magnet the regional polar polarity in middle part of permanent magnet mount pad is opposite.
Hall angle detect structure, wherein, a plurality of permanent magnet is ring shape and distributes.
Hall angle detect structure, wherein, it is a plurality of permanent magnet enclose close the axle center of the ring that constitutes with the rotation axle center of permanent magnet mount pad is coaxial.
Hall angle detect structure, wherein, a plurality of permanent magnet equidistance distributes.
Hall angle detect structure, wherein, permanent magnet mount pad fixed connection be in on the speculum.
Hall angle detect structure, wherein, hall angle detect structure is still including being located the motor stator seat of permanent magnet mount pad top, motor stator seat is used for the installation drive the motor of mirror piece.
Hall angle detect structure, wherein, be connected with on the motor stator seat and be located the PCB board of mirror piece one side, hall sensor sets up on the PCB board.
The laser radar is provided with the Hall angle detection structure.
A radar article wherein a lidar as described above is provided on the radar article.
The beneficial effects of the utility model reside in that: use the novel hall angle detection structure of this application, when laser radar's speculum piece rotates, permanent magnet mount pad and speculum piece synchronous rotation, a plurality of permanent magnet pass through hall sensor's induction zone in proper order for hall sensor senses the magnetic signal that changes, and then sends different level signal according to setting for, according to the grasp turned angle that just can be accurate to level signal's analysis, use the promotion laser radar that this kind of mode can the preferred to carry out the anti light characteristic that the angle detected.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described with reference to the accompanying drawings and embodiments, wherein the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive efforts according to these drawings:
fig. 1 is a schematic structural view of a hall angle detection structure according to a preferred embodiment of the present invention;
fig. 2 is a plan view of the hall angle detecting structure hall sensor and the permanent magnet mounting seat in the preferred embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following description will be made clearly and completely in conjunction with the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
The hall angle detection structure of the preferred embodiment of the present invention, as shown in fig. 1, with reference to fig. 2, includes a permanent magnet mounting base 2 rotating synchronously with a reflection lens 1 of a laser radar, and a plurality of permanent magnets 3 distributed annularly are arranged on the permanent magnet mounting base 2; the Hall angle detection structure also comprises a Hall sensor 4 arranged on one side of the permanent magnet mounting seat 2; when the permanent magnet mounting base 2 rotates, the permanent magnets 3 sequentially pass through the induction area of the Hall sensor 4;
use the novel hall angle detection structure of this application, when laser radar's reflection lens 1 rotates, permanent magnet mount pad 2 rotates with reflection lens 1 is synchronous, and a plurality of permanent magnet 3 pass through hall sensor 4's induction area in proper order for hall sensor 4 senses the magnetic signal that changes, and then according to setting for sending different level signal, according to the grasp turned angle that just can be accurate to level signal's analysis, use the promotion laser radar that this kind of mode can the preferred to carry out the anti light characteristic that the angle detected.
As a further preferable mode, the N pole or S pole of the permanent magnet 3 may be directed toward the middle area of the permanent magnet mounting seat 2, and the polarities of the poles of the middle areas of the adjacent permanent magnets 3 away from the permanent magnet mounting seat 2 are opposite, that is, the outward sides of the plurality of permanent magnets 3 are alternately distributed in N pole and S pole, so that the induction effect of the hall sensor 4 can be ensured, and in this setting, the speed range of allowing the mirror plate to rotate can be increased; if such an alternating distribution of N-pole and S-pole is not performed, in order to ensure the magnetic induction signal variation, the mirror plate needs to rotate at a slower speed, and a sufficient distance between adjacent permanent magnets needs to be ensured.
Furthermore, in order to obtain stable and regular signals, the plurality of permanent magnets 3 may be distributed in a circular ring shape, the axis of the circular ring is coaxial with the rotation axis of the permanent magnet mounting seat 2, and the plurality of permanent magnets 3 are distributed at equal intervals.
In order to facilitate assembly, the permanent magnet mounting seat 2 can be directly and fixedly connected to the reflector 1, meanwhile, a motor stator seat 6 above the permanent magnet mounting seat is connected with a PCB 5 on one side of the reflector, and the Hall sensor 4 is arranged on the PCB 5;
the structural design is very reasonable and compact, and the Hall sensor signal transmission and the power supply and control of the motor on the motor stator seat are facilitated while the stability is ensured;
preferably, the rotating shaft of the motor and the permanent magnet mounting seat 2 can be directly connected and assembled during installation.
A laser radar is provided with the Hall angle detection structure.
A radar product is provided, wherein the laser radar is arranged on the radar product; the radar product referred to in the application is a related product applied with laser radar, such as a sweeper, a robot and the like.
It will be understood that modifications and variations are possible to those skilled in the art in light of the above teachings and that all such modifications and variations are considered to be within the purview of the invention as set forth in the appended claims.
Claims (10)
1. A Hall angle detection structure is characterized by comprising a permanent magnet mounting seat which rotates synchronously with a reflector of a laser radar, wherein a plurality of permanent magnets distributed in an annular shape are arranged on the permanent magnet mounting seat; the Hall angle detection structure also comprises a Hall sensor arranged on one side of the permanent magnet mounting seat; when the permanent magnet mounting seat rotates, the permanent magnets sequentially pass through the induction area of the Hall sensor.
2. The Hall angle detecting structure of claim 1, wherein the N pole or S pole of each permanent magnet faces the middle region of the permanent magnet mounting seat, and the polarities of the poles of the adjacent permanent magnets facing away from the middle region of the permanent magnet mounting seat are opposite.
3. The hall angle sensing structure of claim 1 or 2, wherein a plurality of the permanent magnets are distributed in a circular shape.
4. The Hall angle detecting structure of claim 3, wherein an axis of a ring formed by enclosing the plurality of permanent magnets is coaxial with a rotation axis of the permanent magnet mounting base.
5. The Hall angle sensing structure of claim 3, wherein a plurality of said permanent magnets are equidistantly distributed.
6. The Hall angle detecting structure of any of claims 1, 2, 4 and 5, wherein the permanent magnet mounting base is fixedly connected to the mirror plate.
7. The Hall angle detecting structure of claim 6, further comprising a motor stator base located above the permanent magnet mounting base, the motor stator base being configured to mount a motor for driving the mirror plate.
8. The Hall angle detecting structure of claim 7, wherein a PCB is connected to the stator base of the motor and positioned at one side of the reflector, and the Hall sensor is disposed on the PCB.
9. Lidar according to any of claims 1 to 8, characterized in that it is provided with a hall angle detection structure.
10. A radar article characterized in that the radar article is provided with a lidar according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222526915.9U CN218213434U (en) | 2022-09-23 | 2022-09-23 | Hall angle detection structure, laser radar and radar product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222526915.9U CN218213434U (en) | 2022-09-23 | 2022-09-23 | Hall angle detection structure, laser radar and radar product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218213434U true CN218213434U (en) | 2023-01-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222526915.9U Active CN218213434U (en) | 2022-09-23 | 2022-09-23 | Hall angle detection structure, laser radar and radar product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218213434U (en) |
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2022
- 2022-09-23 CN CN202222526915.9U patent/CN218213434U/en active Active
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