CN220340392U

CN220340392U - Dust cover and radar device

Info

Publication number: CN220340392U
Application number: CN202321788351.4U
Authority: CN
Inventors: 邓高文; 陈悦; 曾艳山; 段新峰
Original assignee: Shenzhen Huanchuang Technology Co ltd
Current assignee: Shenzhen Huanchuang Technology Co ltd
Priority date: 2023-07-07
Filing date: 2023-07-07
Publication date: 2024-01-12
Anticipated expiration: 2033-07-07

Abstract

The embodiment of the utility model relates to the technical field of laser radars, and particularly discloses a dust cover and a radar device, wherein the dust cover comprises: the cover body is connected with the rotating seat to cover the transmitting end and the receiving end, and perforations are formed in the cover body corresponding to the transmitting end and the receiving end; and the light-transmitting sheet is connected with the cover body so as to seal the perforation. The cover body is connected with the rotating seat, so that the cover body can drive the rotating seat to rotate when rotating. The cover body is provided with perforations corresponding to the transmitting end and the receiving end, and the perforations are opposite to the transmitting end and the receiving end. The light-transmitting sheet is connected with the cover body to seal the perforation, so that sundries can be prevented from entering the laser radar from the perforation. The surrounding environment can be scanned as long as the light-transmitting sheet is not shielded by the debris. Compared with the non-rotatable full-transparent dust cover in the prior art, the light-transparent sheet area of the dust cover is relatively small, so that the probability that the transmitting end and the receiving end of the laser radar are shielded by sundries can be reduced.

Description

Dust cover and radar device

Technical Field

The embodiment of the utility model relates to the field of laser radars, in particular to a dust cover and a radar device.

Background

The lidar is a radar system that detects a characteristic quantity such as a position, a speed, etc. of a target by emitting a laser beam. The laser radar comprises a transmitting end and a receiving end, and the working principle of the laser radar is that the transmitting end transmits a detection laser beam to a target, and then compares the received laser beam reflected from the target with the transmitted laser beam to obtain parameters such as the distance, azimuth, altitude, speed, gesture, even shape and the like of the target, so that the target is detected, tracked and identified.

When the laser radar works in a severe environment, no sundry shielding on the whole optical ranging path is ensured, otherwise, the ranging data and the performance are easily affected. In the prior art, the lidar generally comprises two structures, namely an open structure, that is, a transmitting end and a receiving end are not sealed, so that the transmitting end and the receiving end are easy to be polluted or shielded by sundries. 2. The dust cover is used for covering the transmitting end and the receiving end, but the radar needs to scan 360 degrees, so that the laser is required to pass through the whole circle of the dust cover in the circumferential direction, and the light-transmitting surface is easy to pollute or shield due to the large light-transmitting area.

Disclosure of Invention

The embodiment of the utility model provides a dust cover and a radar device, which aim to solve the problem that a transmitting end and a receiving end of a laser radar are easy to be polluted or shielded.

In order to solve the technical problems, the utility model adopts a technical scheme that: the utility model provides a dust cover is applicable to laser radar, laser radar includes roating seat, transmitting end and receiving end, the transmitting end with the receiving end set up in the roating seat, the dust cover includes:

the cover body is connected with the rotating seat to cover the transmitting end and the receiving end, and perforations are formed in the cover body corresponding to the transmitting end and the receiving end;

and the light-transmitting sheet is connected with the cover body so as to seal the perforation.

Optionally, the light-transmitting sheet is disposed on the outer surface of the cover body.

Optionally, the surface of the cover body is provided with a mounting groove, the bottom of the mounting groove is communicated with the through hole, and the light-transmitting sheet is arranged in the mounting groove.

Optionally, the dust cover further includes a first installation part, the first installation part is connected to the inner surface of the cover body, the first installation part is provided with a first light hole communicated with the perforation, the installation part is provided with a containing groove, and the containing groove separates the installation part into a first part and a second part along the axial direction of the light hole; the light-transmitting sheet is arranged in the accommodating groove.

Optionally, the dust cover further includes a second mounting portion, the second mounting portion connect in the internal surface of the cover body, the second mounting portion be equipped with the second light trap of perforation intercommunication, the light transmission piece set up in the second light trap is kept away from the one end of the cover body.

Optionally, the dust cover further includes a limiting portion, the limiting portion is disposed on at least one side of the accommodating groove, the limiting portion is provided with a limiting groove communicated with the accommodating groove, and at least a portion of the light-transmitting sheet is accommodated in the limiting groove.

Optionally, the light-transmitting sheet and the cover body are integrally formed.

Optionally, the transparent sheet and the cover are made of transparent materials.

Optionally, the dust cover further includes a fastener, where the fastener penetrates through the light-transmitting sheet and the cover body to connect the light-transmitting sheet and the cover body.

The utility model also provides a radar device comprising the dust cover.

The embodiment of the utility model has the beneficial effects that: in contrast to the prior art, the dust cover of the present utility model includes a cover body and a light-transmitting sheet. The cover body is connected with the rotating seat to cover and establish transmitting end and receiving end, can avoid transmitting end and receiving end to be in the state of exposing, can avoid transmitting end and receiving end to be sheltered from by debris. Meanwhile, as the cover body is connected with the rotating seat, the cover body can drive the rotating seat to rotate when rotating, namely, the cover body and the rotating seat are in a relatively static state. The cover body is provided with perforations corresponding to the transmitting end and the receiving end, and the perforations are opposite to the transmitting end and the receiving end. The light transmitting sheet may allow laser light to transmit. The light-transmitting sheet is connected with the cover body to seal the perforation, so that sundries can be prevented from entering the laser radar from the perforation. Because the light-transmitting sheet is made of light-transmitting materials, laser emitted from the transmitting end can pass through the light-transmitting sheet to enter the external environment, and laser reflected from the external environment can pass through the light-transmitting sheet to enter the receiving end, so long as the light-transmitting sheet is not shielded by sundries, the surrounding environment can be scanned. Compared with the non-rotatable full-transparent dust cover in the prior art, the light-transparent sheet area of the dust cover is relatively small, so that the probability that the transmitting end and the receiving end of the laser radar are shielded by sundries can be reduced.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.

FIG. 1 is a schematic view illustrating a usage state of a dust cap according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of the laser radar of FIG. 1;

FIG. 3 is a partial schematic view of the structure of FIG. 2;

FIG. 4 is a schematic view of the dust cap of the first embodiment of the present utility model;

FIG. 5 is a schematic view of a part of a dust cover according to an embodiment of the present utility model, wherein a light-transmitting sheet is omitted;

FIG. 6 is a schematic view of a dust cap in a second embodiment of the utility model;

FIG. 7 is a bottom view of a dust cap in a second embodiment of the utility model;

fig. 8 is a schematic structural view of a dust cap according to a second embodiment of the present utility model.

Reference numerals illustrate:

100. a dust cover; 10. a cover body; 110. perforating; 120. a mounting groove; 20. a light transmitting sheet; 30. a first mounting portion; 310. a first portion; 320. a second portion; 330. a first light hole; 340. a receiving groove; 40. a limit part; 410. a limit groove; 200. a laser radar; 2100. a rotating seat; 2200. a transmitting end; 2300. a receiving end; 2400. a driving wheel; 2500. driven wheel; 2600. a belt; 2700. a motor; 1000. a radar apparatus.

Detailed Description

In order that the utility model may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings. It will be understood that when an element is referred to as being "fixed" to another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and 2, the present utility model provides a dust cover 100, and the dust cover 100 is suitable for a laser radar 200. Lidar 200 includes a swivel 2100, a transmitting end 2200, and a receiving end 2300, wherein swivel 2100 is rotatably positioned so that lidar 200 can perform a 360 degree scan. The emitting end 2200 is for emitting the detection laser beam outwards, and the receiving end 2300 is for receiving the reflected laser beam. The transmitting end 2200 and the receiving end 2300 are disposed on the rotating base 2100, so that the rotating base 2100 rotates to drive the transmitting end 2200 and the receiving end 2300 to rotate synchronously, i.e. the rotating base 2100, the transmitting end 2200 and the receiving end 2300 are in a relatively static state.

Referring to fig. 3, for the above-mentioned lidar 200, the lidar 200 further includes a capstan 2400, a follower 2500, a belt 2600, and a motor 2700. The driven pulley 2500 is connected to the swivel 2100 and is disposed coaxially with the swivel 2100. The motor 2700 is fixedly arranged at one side of the rotating seat 2100, an output shaft of the motor 2700 is in driving connection with the driving wheel 2400, and the belt 2600 is sleeved on the driving wheel 2400 and the driven wheel 2500, so that when the motor 2700 works, the motor 2700 drives the driving wheel 2400 to rotate, and the driving wheel 2400 drives the driven wheel 2500 to rotate through the belt 2600, so that the rotating seat 2100 is driven to rotate.

Referring to fig. 4 and 5, the dust cover 100 includes a cover body 10 and a light-transmitting sheet 20. The cover body 10 is substantially in a cover shape, and the cover body 10 is connected with the rotating seat 2100 to cover the transmitting end 2200 and the receiving end 2300, so that the transmitting end 2200 and the receiving end 2300 can be prevented from being exposed, and the transmitting end 2200 and the receiving end 2300 can be prevented from being blocked by sundries. Meanwhile, since the cover 10 is connected to the rotating seat 2100, the cover 10 can rotate the rotating seat 2100 when rotating, i.e. the cover 10 and the rotating seat 2100 are in a relatively static state. The cover 10 is provided with a through hole 110 corresponding to the transmitting end 2200 and the receiving end 2300, and the through hole 110 is in a facing state with the transmitting end 2200 and the receiving end 2300.

The light-transmitting sheet 20 is substantially sheet-shaped, and the light-transmitting sheet 20 allows laser light to transmit therethrough. The light-transmitting sheet 20 is connected to the cover 10 to seal the through-hole 110, so as to prevent foreign matters from entering the laser radar 200 from the through-hole 110. Since the light-transmitting sheet 20 is made of a light-transmitting material, the laser emitted from the emitting end 2200 may pass through the light-transmitting sheet 20 to enter the external environment, and the laser reflected from the external environment may pass through the light-transmitting sheet 20 to enter the receiving end 2300, so long as the light-transmitting sheet 20 is not shielded by the debris from the lidar 200, the surrounding environment may be scanned. Compared to the non-rotatable full-transparent dust cover 100 in the prior art, the light-transparent sheet 20 of the dust cover 100 provided by the present application has a relatively small area, so that the probability that the transmitting end 2200 and the receiving end 2300 of the laser radar 200 are blocked by impurities can be reduced.

Because the dust cover 100 has assembly errors, since the side walls of the non-rotatable full-transparent dust cover 100 in the circumferential direction in the prior art can be penetrated by laser, each position of the side walls of the dust cover 100 in the circumferential direction needs to be calibrated to reduce the error of the laser radar 200. Because the dust cover 100 provided by the application only transmits light through the light-transmitting sheet 20, only the light-transmitting sheet 20 needs to be calibrated, and the calibration time can be remarkably reduced.

Referring to fig. 4, in some embodiments, the light-transmitting sheet 20 is disposed on the outer surface of the cover 10, so as to facilitate the installation and fixing of the light-transmitting sheet 20 and cleaning of the light-transmitting sheet 20.

Referring to fig. 5, in some embodiments, the outer surface of the cover 10 is provided with a mounting groove 120, the shape of the mounting groove 120 is adapted to the shape of the light-transmitting sheet 20, and the bottom of the mounting groove 120 is communicated with the through hole 110. The light transmitting sheet 20 is disposed in the mounting groove 120 to seal the through hole 110. The light-transmitting sheet 20 may be adhered to the cover 10 by glue or adhesive, specifically, glue or adhesive is applied to the edge of the light-transmitting sheet 20, and then the light-transmitting sheet 20 is placed in the mounting groove 120 to fix the light-transmitting sheet 20. The light-transmitting sheet 20 may also be connected to the cover 10 by fasteners such as screws, bolts, or the like, and specifically, the screws, bolts, or the like are sequentially passed through the light-transmitting sheet 20 and the cover 10, thereby mounting the light-transmitting sheet 20 to the cover 10.

Referring to fig. 6 and 7, in some embodiments, the dust cover 100 further includes a first mounting portion 30, where the first mounting portion 30 is substantially cylindrical, the first mounting portion 30 is connected to the inner surface of the cover body 10, the first mounting portion 30 is provided with a first light hole 330 that communicates with the through hole 110, and the first light hole 330 is coaxially disposed with the through hole 110. The first mounting portion 30 is provided with a receiving groove 340, and the receiving groove 340 is located on an inner surface of the first mounting portion 30. The depth of the receiving groove 340 is smaller than the wall thickness of the first mounting portion 30, and the depth of the receiving groove 340 may be equal to the wall thickness of the first mounting portion 30, that is, the receiving groove 340 penetrates through the sidewall of the first mounting portion 30. The receiving groove 340 divides the mounting portion 30 into a first portion 310 and a second portion 320, the first portion 310 being located at one axial end of the light-transmitting hole 330, and the second portion 320 being located at the other axial end of the light-transmitting hole 330. The width of the receiving groove 340 is adapted to the thickness of the light-transmitting sheet 20, the light-transmitting sheet 20 is mounted in the receiving groove 340, and the light-transmitting sheet 20 seals the through holes 110 by sealing the light-transmitting holes 330 communicating with the through holes 110.

Referring to fig. 7, in some embodiments, the dust cover 100 further includes a limiting portion 40, the limiting portion 40 is substantially block-shaped, the limiting portion 40 is disposed on at least one side of the accommodating groove 340, the limiting portion 40 is connected to the first portion 310 and the second portion 320 at the same time, and the limiting portion 40 is provided with a limiting groove 410 that is communicated with the accommodating groove 340. At least a portion of the light-transmitting sheet 20 is accommodated in the limiting groove 410, specifically, at least one of two ends of the light-transmitting sheet 20 protrudes from the accommodating groove 340 and is accommodated in the limiting groove 410, so as to realize primary fixing of the light-transmitting sheet 20.

In other embodiments, the dust cover 100 further includes a second mounting portion (not shown) connected to the inner surface of the cover 10, where the second mounting portion is provided with a second light hole (not shown) in communication with the through hole, and the light transmitting sheet 20 is disposed at an end of the second light hole away from the cover 10.

Referring to fig. 7, in the present embodiment, two limiting portions 40 are provided, and the two limiting portions 40 are respectively disposed at two sides of the limiting slot 410. Both sides of the light-transmitting sheet 20 extend beyond the accommodating groove 340, and the portion of the light-transmitting sheet 20 extending beyond the accommodating groove 340 is accommodated in the corresponding accommodating groove 340. The light-transmitting sheet 20 may be adhered to the first portion 310 and/or the second portion 320 of the cover 10 by glue or adhesive, specifically, glue or adhesive is applied to the edge of the light-transmitting sheet 20, and then the light-transmitting sheet 20 is placed in the accommodating groove 340 to fix the light-transmitting sheet 20. The light-transmitting sheet 20 can also be mounted by interference fit, specifically, the thickness of the light-transmitting sheet 20 is slightly larger than the width of the accommodating groove 340 and the limiting groove 410, the light-transmitting sheet 20 is plugged into the accommodating groove 340, and the part of the light-transmitting sheet 20 protruding out of the accommodating groove 340 is accommodated in the limiting groove 410.

Referring to fig. 8, in some embodiments, the light-transmitting sheet 20 is integrally formed with the cover 10, and the light-transmitting sheet 20 and the cover 10 are integrally formed to omit the step of mounting the light-transmitting sheet 20, so as to facilitate quick mounting of the dust cover 100. When the light-transmitting sheet 20 and the cover body 10 are integrally formed, the light-transmitting sheet 20 and the cover body 10 are made of light-transmitting materials, so that rapid processing and forming are facilitated.

The light-transmitting sheet 20 may have a flat structure, and the light-transmitting sheet 20 may have an arc-shaped structure having a curvature. The light-transmitting sheet 20 with a flat structure does not change the light path of the laser, so that the laser has better parallelism after passing through the light-transmitting sheet 20.

In some embodiments, the dust cap 100 further includes fasteners (not shown) that pass through the light transmissive sheet 20 and the cap body 10 to connect the light transmissive sheet 20 and the cap body 10. Fasteners include, but are not limited to, screws and bolts.

In summary, the dust cover 100 includes the cover body 10 and the light-transmitting sheet 20. The cover 10 is connected with the rotating base 2100 to cover the transmitting end 2200 and the receiving end 2300, thereby preventing the transmitting end 2200 and the receiving end 2300 from being exposed and preventing the transmitting end 2200 and the receiving end 2300 from being blocked by foreign matters. Meanwhile, since the cover 10 is connected to the rotating seat 2100, the cover 10 can rotate the rotating seat 2100 when rotating, i.e. the cover 10 and the rotating seat 2100 are in a relatively static state. The cover 10 is provided with a through hole 110 corresponding to the transmitting end 2200 and the receiving end 2300, and the through hole 110 is in a facing state with the transmitting end 2200 and the receiving end 2300. The light transmitting sheet 20 may allow laser light to transmit. The light-transmitting sheet 20 is connected to the cover 10 to seal the through-hole 110, so as to prevent foreign matters from entering the laser radar 200 from the through-hole 110. Since the light-transmitting sheet 20 is made of a light-transmitting material, the laser emitted from the emitting end 2200 may pass through the light-transmitting sheet 20 to enter the external environment, and the laser reflected from the external environment may pass through the light-transmitting sheet 20 to enter the receiving end 2300, so long as the light-transmitting sheet 20 is not shielded by the debris from the lidar 200, the surrounding environment may be scanned. Compared to the non-rotatable full-transparent dust cover 100 in the prior art, the light-transparent sheet 20 of the dust cover 100 provided by the present application has a relatively small area, so that the probability that the transmitting end 2200 and the receiving end 2300 of the laser radar 200 are blocked by impurities can be reduced.

The present utility model also provides a radar apparatus 1000, referring to fig. 1 and 2, the radar apparatus 1000 encapsulates the dust cover 100.

The radar apparatus 1000 further includes a lidar 200, the lidar 200 including a rotation mount 2100, a transmitting end 2200, and a receiving end 2300, wherein the rotation mount 2100 is rotatably disposed so that the lidar 200 can perform a 360 degree scan. The emitting end 2200 is for emitting the detection laser beam outwards, and the receiving end 2300 is for receiving the reflected laser beam. The transmitting end 2200 and the receiving end 2300 are provided to the swivel 2100.

Referring to fig. 4 and 5, the dust cover 100 includes a cover body 10 and a light-transmitting sheet 20. The housing 10 is coupled to the swivel 2100 to house the transmitting end 2200 and the receiving end 2300. The cover 10 is provided with a through hole 110 corresponding to the transmitting end 2200 and the receiving end 2300, and the through hole 110 is in a facing state with the transmitting end 2200 and the receiving end 2300. The light transmitting sheet 20 is disposed in the mounting groove 120.

It should be noted that the description of the present utility model and the accompanying drawings illustrate preferred embodiments of the present utility model, but the present utility model may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, which are not to be construed as additional limitations of the utility model, but are provided for a more thorough understanding of the present utility model. The above-described features are further combined with each other to form various embodiments not listed above, and are considered to be the scope of the present utility model described in the specification; further, modifications and variations of the present utility model may be apparent to those skilled in the art in light of the foregoing teachings, and all such modifications and variations are intended to be included within the scope of this utility model as defined in the appended claims.

Claims

1. The utility model provides a dust cover, is applicable to laser radar, laser radar includes roating seat, transmitting end and receiving end, the transmitting end with the receiving end set up in the roating seat, its characterized in that, the dust cover includes:

2. The dust cover of claim 1, wherein the light transmissive sheet is disposed on an outer surface of the cover.

3. The dust cover according to claim 2, wherein an outer surface of the cover body is provided with a mounting groove, the bottom of the mounting groove is communicated with the through hole, and the light-transmitting sheet is arranged in the mounting groove.

4. The dust cover of claim 1, further comprising a first mounting portion connected to an inner surface of the cover body, the first mounting portion having a first light-transmitting hole in communication with the through hole, the first mounting portion having a receiving slot separating the mounting portion into a first portion and a second portion along an axial direction of the light-transmitting hole; the light-transmitting sheet is arranged in the accommodating groove.

5. The dust cover of claim 1, further comprising a second mounting portion connected to an inner surface of the cover body, the second mounting portion being provided with a second light transmission hole in communication with the through hole, the light transmission sheet being disposed at an end of the second light transmission hole away from the cover body.

6. The dust cover of claim 4, further comprising a limiting portion disposed on at least one side of the receiving slot, the limiting portion having a limiting slot in communication with the receiving slot, at least a portion of the light-transmitting sheet being received in the limiting slot.

7. The dust cover of claim 1, wherein the light transmissive sheet is integrally formed with the cover body.

8. The dust cap of claim 7, wherein the light transmissive sheet and the cover are both light transmissive materials.

9. The dust cover of any one of claims 1-5, further comprising a fastener disposed through the light transmissive sheet and the cover to connect the light transmissive sheet and the cover.

10. A radar apparatus comprising a dust cover as claimed in any one of claims 1 to 9.