阅读说明：本技术 镜片组件、摄像装置及无人车 (Lens subassembly, camera device and unmanned car ) 是由 刘旸 宁柯军 于 2021-08-02 设计创作，主要内容包括：本公开涉及一种镜片组件、摄像装置及无人车,该镜片组件可用于到自动驾驶领域的车辆上,该镜片组件包括镜片总成、基座、擦拭件及驱动总成,镜片总成包括镜片,基座上设置有用于透光用的开放区域,擦拭件用于擦拭镜片,擦拭件位于基座上开放区域之外的其他部分,驱动总成用于驱动镜片总成在基座上活动,以使擦拭件能够在镜片的活动过程中,对镜片进行擦拭,并使镜片覆盖住开放区域。通过擦拭件直接擦拭镜片,有利于保证对镜片的清洁效果。通过将擦拭件的位置固定,而将镜片设置为活动件,在镜片的活动过程中利用擦拭件对镜片进行清洁,在擦拭件对镜片清洁的时候不会影响到光学传感器的正常工作,允许在车辆无人驾驶时进行镜片的清洁。(The utility model relates to a lens subassembly, camera device and unmanned car, this lens subassembly can be used to the vehicle in the autopilot field on, this lens subassembly includes the lens assembly, a pedestal, wiper and drive assembly, the lens assembly includes the lens, be provided with the open area that is used for the printing opacity to use on the base, wiper is used for wiping the lens, wiper is located other parts outside the open area on the base, the drive assembly is used for driving the lens assembly and moves about on the base, so that wiper can be at the activity in-process of lens, clean the lens, and make the lens cover open area. The lens is directly wiped by the wiping piece, so that the cleaning effect on the lens is ensured. Through the fixed position with the wiper, and set up the lens into the moving part, utilize the wiper to clean the lens at the activity in-process of lens, can not influence optical sensor's normal work when the wiper is clean to the lens, allow to carry out the cleanness of lens when the vehicle is unmanned.)

1. A lens assembly, comprising:

a lens assembly (10) comprising a lens (11);

a base (20), wherein an open region (21) for light transmission is provided on the base (20);

a wiper (30) for wiping the lens (11), the wiper (30) being located on the base (20) at a portion other than the open area (21);

a driving assembly (40) for driving the lens assembly (10) to move on the base (20) so that the wiper (30) can wipe the lens (11) during the movement of the lens (11);

wherein the lens (11) covers the open area (21) during wiping of the lens (11) by the wiper (30).

2. The lens assembly of claim 1, wherein the wiper (30) includes first and second wipers (31, 32) spaced apart in an X-direction, the open area (21) being located between the first and second wipers (31, 32) in the X-direction, the lens assembly (10) being configured to be reciprocally movable in the X-direction upon actuation of the drive assembly (40).

3. The lens assembly of claim 2, characterized in that the lens assembly (10) comprises an outer frame (12) and the lens (11) embedded in the outer frame (12);

one of the base (20) and the outer frame (12) is provided with a guide groove (241) extending in the X direction, and the other of the base (20) and the outer frame (12) is provided with a guide rail (121) in sliding fit with the guide groove (241).

4. The lens assembly according to claim 3, characterized in that said drive assembly (40) comprises a motor (41) and a rocker (42), the rotation axis (411) of said motor (41) being arranged along the Y direction;

a sleeve (421) is arranged at one end of the rocker arm (42), the sleeve (421) is fixedly sleeved on the rotating shaft (411), and a sliding block (422) is arranged at the other end of the rocker arm (42);

the outer frame (12) is provided with a sliding groove (123) extending along the Z direction, and the sliding block (422) is movably matched in the sliding groove (123), so that when the rocker arm (42) rotates along with the rotating shaft (411), the sliding block (422) can drive the lens assembly (10) to reciprocate in the X direction.

5. The lens assembly according to any one of claims 2 to 4, characterized in that a nozzle group for spraying a cleaning liquid onto the lens (11) is provided on the base (20);

the nozzle group comprises a first nozzle (51), a second nozzle (52), a third nozzle (53) and a fourth nozzle (54); the first nozzle (51) and the second nozzle (52) are located on opposite sides of the first wiper (31), the third nozzle (53) and the fourth nozzle (54) are located on opposite sides of the second wiper (32), and the first nozzle (51), the second nozzle (52), the third nozzle (53), and the fourth nozzle (54) are arranged in this order in the X direction.

6. The lens assembly of claim 5, in which the nozzle set has a first mode of operation and a second mode of operation;

in the first working mode, under the driving of the driving assembly (40), the center of the lens (11) in the X direction moves towards the direction close to the second wiping piece (32), and the first nozzle (51) and the third nozzle (53) spray cleaning liquid to the lens (11) simultaneously;

in the second working mode, under the driving of the driving assembly (40), the center of the lens (11) in the X direction moves towards the direction close to the first wiping piece (31), and the second nozzle (52) and the fourth nozzle (54) spray cleaning liquid to the lens (11) simultaneously.

7. The lens assembly of claim 6, wherein the lens assembly (100) further comprises a connector (90) and a channel (60) disposed on the base (20) for the passage of a cleaning liquid, an inlet of the connector (90) being adapted to be physically connected to a cleaning liquid supply tank (300), an outlet of the connector (90) being adapted to be connected to an inlet of the channel (60) for providing the cleaning liquid to the nozzle set;

a reversing part (70) is arranged in the channel (60), so that the channel (60) can provide cleaning liquid for the first nozzle (51) and the third nozzle (53) or provide cleaning liquid for the second nozzle (52) and the fourth nozzle (54) through the reversing part (70), or the channel (60) can be cut off to provide the cleaning liquid for the first nozzle (51), the second nozzle (52), the third nozzle (53) and the fourth nozzle (54).

8. The lens assembly of claim 7, wherein the channel (60) includes a first channel segment (61) extending along the X-direction and second (62) and third (62) channel segments formed at opposite ends of the first channel segment (61);

the liquid inlet (511) of the first nozzle (51) and the liquid inlet (521) of the second nozzle (52) are positioned in the second channel section (62) and are arranged at intervals in the X direction;

the liquid inlet (531) of the third nozzle (53) and the liquid inlet (541) of the fourth nozzle (54) are positioned in the third channel section (63) and are arranged at intervals in the X direction;

the direction changing member (70) is configured as a rod-shaped member including a first rod section (71) and a second rod section (72) and a third rod section (73) forming opposite ends of the first rod section (71), the first rod section (71) is slidably fitted in the first channel section (61) in the X direction, and an outer wall of the first rod section (71) is in contact with an inner wall of the first channel section (61);

the reversing piece (70) is provided with a hollow channel, a first opening (711) is formed in the first rod section (71), and the first opening (711) is used for communicating the hollow channel with a liquid outlet of the joint (90);

the second rod section (72) is provided with a second opening (721) communicated with the hollow channel, and the second opening (721) is used for being selectively communicated with a liquid inlet (511) of the first nozzle (51) or a liquid inlet (521) of the second nozzle (52);

the third rod section (73) is provided with a third opening (731) communicated with the hollow channel, and the third opening (731) is used for being selectively communicated with a liquid inlet (531) of the third nozzle (53) or a liquid inlet (541) of the fourth nozzle (54).

9. The lens assembly of claim 7, wherein the lens assembly (100) further includes a bottom cover (22), the base (20) including a bottom plate (22), a bottom surface of the bottom plate (22) defining a groove, the groove and a face of the bottom cover (23) facing the bottom plate (22) together defining the channel (60).

10. The lens assembly of claim 8, wherein the lens assembly (10) has a first extreme position and a second extreme position in the X-direction;

the lens assembly (10) is linked with the reversing piece (70) so that when the lens assembly (10) moves from one of the first limit position and the second limit position to the other, the reversing piece (70) can be driven to move in the first channel section (61), and the cleaning liquid is reversed.

11. The lens assembly of claim 10, wherein the diverter (70) has a first protrusion (74) disposed thereon, and the lens assembly (10) has a second protrusion (124) and a third protrusion (125) disposed thereon;

in the X direction, the second protrusion (124) and the third protrusion (125) are located on both sides of the first protrusion (74) in the X direction;

in the first limit position, the second protrusion (124) abuts against one side of the first protrusion (74) in the X direction, and in the second limit position, the third protrusion (125) abuts against the other side of the first protrusion (74) in the X direction.

12. The lens assembly of claim 1, wherein the base (20) includes a base plate (22) and two L-shaped plates (25) spaced apart at both ends of the base plate (22) in the X-direction;

the L-shaped plate (25) comprises a first part (251) extending along the X direction and a second part (252) extending along the Y direction, and the area between the two first parts (251) is the open area (21).

13. The lens component of any of claims 1-4, characterized in that the lens component (100) further comprises a housing (80), the housing (80) having an open end, the open area (21) being located on a side of the open end, the lens assembly (10), the wiper (30), and the drive assembly (40) all being located inside the housing (80), and the housing (80) further having a space for accommodating an optical sensor therein.

14. A camera device, comprising a camera head (200) and the lens assembly (100) of any one of claims 1 to 13, wherein light rays passing through the lens (11) can be transmitted to the camera head (200).

15. An unmanned vehicle comprising the imaging device according to claim 14.

Technical Field

The disclosure relates to the technical field of unmanned vehicle parts, in particular to a lens assembly, a camera device and an unmanned vehicle.

Background

The unmanned vehicle needs a plurality of cameras, and in a driving environment, the unmanned vehicle can be exposed to wind and sunlight, and dirt (rain, snow, dust, gum and the like) in the environment can be attached to the outer sides of the lenses of the cameras, so that the vision of the unmanned vehicle is influenced, and the performance and the safety of automatic driving are influenced. Therefore, the cleaning of the camera becomes a problem which is being solved by each automatic driving company and vehicle enterprise.

To address this problem, there are two main cleaning methods in the related art: spraying glass water to a lens, and then blowing away or drying water stain by an air spraying method; and the second method is to arrange a wiper similar to a passenger car and directly wipe the surface of the lens by using the wiper.

However, as soon as the method is suitable for cleaning floating ash or water-soluble stains on the surface, the stains are difficult to clean when the stains encounter shellac, heavy rain and heavy snow. Although the second method is cleaner than the first method, the wiper motion can affect the identification work of the camera, so the wiper cannot be started in the automatic driving process of the vehicle, and the method is not suitable for unmanned vehicles.

Disclosure of Invention

The present disclosure is directed to a lens assembly, an image capturing device and an unmanned vehicle, which at least partially solve the above problems in the related art.

To achieve the above object, the present disclosure provides a lens assembly comprising:

a lens assembly comprising a lens;

a base provided with an open region for light transmission;

a wiper for wiping the lens, the wiper being located on the base at a portion other than the open area;

the driving assembly is used for driving the lens assembly to move on the base so that the wiping piece can wipe the lens in the moving process of the lens;

wherein the lens covers the open area during wiping of the lens by the wiper.

Optionally, the wiper includes a first wiper and a second wiper arranged at intervals in an X direction, the open area is located between the first wiper and the second wiper in the X direction, and the lens assembly is configured to be reciprocally movable in the X direction by the driving assembly.

Optionally, the lens assembly includes an outer frame and the lens embedded in the outer frame, one of the base and the outer frame is provided with a guide groove extending in the X direction, and the other of the base and the outer frame is provided with a guide rail for sliding fit with the guide groove.

Optionally, the driving assembly comprises a motor and a rocker arm, and a rotating shaft of the motor is arranged along the Y direction; a sleeve is arranged at one end of the rocker arm, the sleeve is sleeved and fixed on the rotating shaft, and a sliding block is arranged at the other end of the rocker arm; the outer frame is provided with a sliding groove extending along the Z direction, and the sliding block is movably matched in the sliding groove, so that when the rocker arm rotates along with the rotating shaft, the sliding block can drive the lens assembly to reciprocate in the X direction.

Optionally, a nozzle group is disposed on the base, the nozzle group is used for spraying cleaning liquid to the lens, the nozzle group comprises a first nozzle, a second nozzle, a third nozzle and a fourth nozzle, in the X direction, the first nozzle and the second nozzle are located on two opposite sides of the first wiper, the third nozzle and the fourth nozzle are located on two opposite sides of the second wiper, and the first nozzle, the second nozzle, the third nozzle and the fourth nozzle are sequentially arranged.

Optionally, the nozzle group has a first operation mode in which the center of the lens in the X direction is moved toward the direction close to the second wiper by the driving assembly, and the first nozzle and the third nozzle simultaneously eject the cleaning liquid toward the lens, and a second operation mode in which the center of the lens in the X direction is moved toward the direction close to the first wiper by the driving assembly, and the second nozzle and the fourth nozzle simultaneously eject the cleaning liquid toward the lens.

Optionally, the lens subassembly is still including connecting and setting up the passageway that passes through with the confession cleaning solution on the base, the inlet of joint is used for supplying with the cleaning solution the box and links to each other, the liquid outlet of joint with the inlet of passageway links to each other, with to the nozzle group provides the cleaning solution, set up the switching-over piece in the passageway, with pass through the switching-over piece is realized the passageway to first nozzle with the third nozzle provides the cleaning solution, perhaps, to the second nozzle with the fourth nozzle provides the cleaning solution, perhaps, realizes cutting the passageway to first nozzle the second nozzle the third nozzle reaches the cleaning solution of fourth nozzle is supplied with.

Optionally, the channel includes a first channel section extending along the X direction, and a second channel section and a third channel section formed at two opposite ends of the first channel section, the liquid inlet of the first nozzle and the liquid inlet of the second nozzle are located at the second channel section and are arranged at intervals in the X direction, the liquid inlet of the third nozzle and the liquid inlet of the fourth nozzle are located at the third channel section and are arranged at intervals in the X direction, the reversing member is configured as a rod-shaped member, and includes a first rod section, and a second rod section and a third rod section forming two opposite ends of the first rod section, the first rod section is slidably fitted in the first channel section in the X direction, and an outer wall of the first rod section contacts with an inner wall of the first channel section, the reversing member has a hollow channel, a first opening is provided on the first rod section, and the first opening is used for communicating the hollow channel with the liquid outlet of the joint, the second rod section is provided with a second opening communicated with the hollow channel, the second opening is used for being selectively communicated with the liquid inlet of the first nozzle or the liquid inlet of the second nozzle, the third rod section is provided with a third opening communicated with the hollow channel, and the third opening is used for being selectively communicated with the liquid inlet of the third nozzle or the liquid inlet of the fourth nozzle.

Optionally, the lens assembly further includes a bottom cover, the base includes a bottom plate, a groove is formed in a bottom surface of the bottom plate, and the groove and a surface of the bottom cover facing the bottom plate define the channel together.

Optionally, the lens assembly has a first limit position and a second limit position in the X direction, and the lens assembly is linked with the reversing member, so that when the lens assembly moves from one of the first limit position and the second limit position to the other, the reversing member can be driven to move in the first channel section, and the cleaning solution can be reversed.

Optionally, a first protrusion is arranged on the reversing element, a second protrusion and a third protrusion are arranged on the lens assembly, the second protrusion and the third protrusion are located on two sides of the first protrusion in the X direction, at the first limit position, the second protrusion abuts against one side of the first protrusion in the X direction, at the second limit position, the third protrusion abuts against the other side of the first protrusion in the X direction.

Optionally, the base comprises a bottom plate and two L-shaped plates arranged at two ends of the bottom plate at intervals in the X direction, the L-shaped plates comprise first parts extending along the X direction and second parts extending along the Y direction, and an area between the two first parts is the open area.

Optionally, the lens assembly further includes a housing, the housing has an open end, the open area is located on a side where the open end is located, the lens assembly, the wiper and the driving assembly are all located inside the housing, and a space for accommodating the optical sensor is further provided in the housing.

According to another aspect of the present disclosure, an image pickup apparatus is provided, which includes a camera and the lens assembly, wherein light rays passing through the lens can be transmitted to the camera.

According to still another aspect of the present disclosure, there is provided an unmanned vehicle including the imaging device described above.

Through above-mentioned technical scheme, in the lens subassembly that this disclosure provided, directly clean the lens through the wiper, be favorable to guaranteeing the clean effect to the lens. In addition, the position of the wiping piece outside the opening area is fixed, the lens is set to be a movable piece, the lens is cleaned by the wiping piece in the moving process of the lens, and the normal work of the optical sensor cannot be influenced when the cleaning piece cleans the lens is guaranteed. In other words, this lens subassembly that this disclosure provided can guarantee when the clean effect of lens, can not disturb optical sensor's normal work, allows to carry out the cleanness of lens when the vehicle is unmanned, is favorable to guaranteeing unmanned car autopilot's performance and security.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a perspective view of a lens assembly according to one embodiment of the present disclosure;

FIG. 2 is an exploded schematic view of a lens assembly provided by one embodiment of the present disclosure, wherein a camera is also shown;

FIG. 3 is a schematic, partial component view of a lens assembly according to one embodiment of the present disclosure, showing a top cover and lens assembly;

FIG. 4 is a schematic, partial, component view of a lens assembly provided in accordance with one embodiment of the present disclosure, wherein the base and the top cover are not shown and the lens assembly is in a first extreme position;

FIG. 5 is a schematic, partial, component view of a lens assembly provided in accordance with one embodiment of the present disclosure, wherein the base and the top cover are not shown and the lens assembly is in a second, extreme position;

FIG. 6 is a schematic view of a portion of a lens assembly according to one embodiment of the present disclosure, wherein the top cover and lens assembly are not shown;

FIG. 7 is an enlarged schematic view of portion A of FIG. 6;

FIG. 8 is a schematic view of a portion of a lens assembly in a second extreme position, shown without the top cover, according to an embodiment of the present disclosure;

FIG. 9 is an enlarged schematic view of portion B of FIG. 8;

FIG. 10 is a schematic view of a portion of the components of a lens assembly provided in accordance with one embodiment of the present disclosure, wherein the top cover is not shown and the lens assembly is in a second extreme position and moved toward a first extreme position;

FIG. 11 is an enlarged schematic view of portion C of FIG. 10;

FIG. 12 is a schematic bottom view of some of the components of the lens assembly according to one embodiment of the present disclosure, wherein the bottom cover is spaced apart from the bottom plate of the base for easy viewing of the direction-changing member, and the direction-changing member provides a cleaning liquid to the inlet of the first nozzle and the inlet of the third nozzle;

FIG. 13 is a schematic bottom view illustration of some of the components of the lens assembly according to one embodiment of the present disclosure, wherein the reversing element is not shown;

FIG. 14 is a schematic bottom view of a portion of a lens assembly in accordance with an embodiment of the present disclosure, wherein a cleaning liquid is provided to an inlet of a second nozzle and an inlet of a fourth nozzle by a diverter;

FIG. 15 is a perspective view of a reversing element of the lens assembly according to one embodiment of the present disclosure;

FIG. 16 is a schematic diagram of a cleaning liquid supply for a lens assembly provided by one embodiment of the present disclosure;

FIG. 17 is a perspective view of a lens assembly provided by one embodiment of the present disclosure, showing a housing.

Description of the reference numerals

100-a lens assembly; 10-a lens assembly; 11-a lens; 12-an outer frame; 121-a guide rail; 123-chute; 124-a second projection; 125-third projection; 20-a base; 21-open area; 22-a base plate; 23-a bottom cover; 24-a top cover; 241-a guide groove; 25-L template; 251-a first portion; 252-a second portion; 30-a wiper; 31-a first wipe; 32-a second wipe; 40-a drive assembly; 41-a motor; 411-a rotating shaft; 42-a rocker arm; 421-a sleeve; 422-a slide block; 43-motor mount; 51-a first nozzle; 511-the liquid inlet of the first nozzle; 52-a second nozzle; 521-a liquid inlet of a second nozzle; 53-third nozzle; 531-liquid inlet of third nozzle; 54-a fourth nozzle; 541-liquid inlet of fourth nozzle; 60-channel; 61-a first channel segment; 62-a second channel segment; 63-a third channel segment; 64-channel liquid inlet; 70-a reversing member; 71-a first pole segment; 711 — first opening; 72-a second pole segment; 721-a second opening; 73-a third pole segment; 731-third opening; 74-first projection; 80-a housing; 90-a linker; 200-a camera; 300-cleaning liquid supply tank; 400-a pump; 500-switch valve.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, unless otherwise specified, the use of directional terms such as "top, bottom, left, right, front" generally refers to the definition based on the orientation of the drawing figures; the term "inner and outer" refers to the inner and outer parts of the relevant component. Furthermore, the terms "first," "second," and the like, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

As mentioned in the background art, the cleaning of the lens 11 of the imaging device of the unmanned vehicle in the related art has a problem that the cleaning effect is difficult to ensure, or the normal driving of the unmanned vehicle may be affected during the cleaning of the lens 11, which cannot be compatible.

In view of the above, as shown in fig. 1 to 17, the present disclosure provides a lens assembly 100, and the lens assembly 100 can be used in an image pickup device of an unmanned vehicle in the field of automatic driving.

As shown in fig. 1-6, the lens assembly 100 includes a lens assembly 10, a base 20, a wiper 30, and a driving assembly 40.

The lens assembly 10 includes a lens 11, and an open area 21 for light transmission is provided on a base 20, that is, an open area 21 through which external light passes is provided on the base 20 to irradiate an optical sensor (such as a camera 200) located inside the image pickup device, so that the camera 200 can normally photograph.

The wiper 30 is used to wipe the lens 11, and the wiper 30 is located on the base 20 at a position other than the open area 21, i.e., the wiper 30 is not located on the open area 21.

The driving assembly 40 is used for driving the lens assembly 10 to move on the base 20, so that the wiper 30 can wipe the lens 11 during the movement of the lens assembly 10. In the process of wiping the lens 11 by the wiper 30, the lens 11 covers the open area 21, so that external light can normally propagate to the optical sensor through the lens 11. That is, in order to ensure the normal operation of the optical sensor, the lens 11 always covers the open area 21 during the movement of the lens assembly 10, so that the optical sensor operates normally.

Note that, the optical sensor herein refers to an optical device capable of receiving external light via the lens 11, and includes, but is not limited to, the camera 200, the laser radar, and the like. For convenience of description, the camera 200 is taken as an example only.

Through the technical scheme, in the lens assembly 100 provided by the present disclosure, the lens 11 is directly wiped by the wiper 30, which is beneficial to ensuring the cleaning effect of the lens 11. In addition, the position of the wiping piece 30 outside the opening area 21 is fixed, and the lens 11 is set as a movable piece, so that the lens 11 is cleaned by the wiping piece 30 in the moving process of the lens 11, and the normal operation of the camera 200 is not influenced when the wiping piece 30 cleans the lens 11. In other words, the lens assembly 100 provided by the present disclosure does not interfere with the normal operation of the camera 200 while ensuring the cleaning effect of the lens 11, allows the cleaning of the lens 11 when the vehicle is unmanned, and is beneficial to ensuring the performance and safety of the unmanned vehicle during the automatic driving.

It is understood that the lens assembly 100 of the present disclosure may be used not only on unmanned vehicles, but also on other vehicles, such as common passenger vehicles, to improve the safety of the vehicle's autonomous driving mode.

In addition, it is understood that, in order to avoid affecting the shooting operation of the camera 200, the size of the open area 21 may match the size of the camera 200, for example, the area of the open area 21 is greater than or equal to the area of the camera 200 receiving light.

The present disclosure does not limit the movement manner of the lens 11, as long as the lens 11 can be wiped by the wiper 30 during the movement of the lens assembly 10.

As shown in fig. 2, 6 and 7, in one embodiment of the present application, the wiper 30 may include a first wiper 31 and a second wiper 32 arranged at intervals in the X direction, the open region 21 is located between the first wiper 31 and the second wiper 32 in the X direction, and the lens assembly 10 is configured to be reciprocally movable in the X direction by the driving assembly 40. In the embodiment, the first wiper 31 and the second wiper 32 are arranged at intervals in the X direction, which is equivalent to dividing the lens 11 into several parts, and when the lens assembly 10 reciprocates in the X direction, the parts of the lens 11 can be cleaned by the cooperation of the first wiper 31 and the second wiper 32, and the parts of the lens 11 located between the first wiper 31 and the second wiper 32, which actually serve as light transmission parts, can be ensured to be cleaned.

For example, referring to fig. 8 to 11, the first wiper 31 and the second wiper 32 divide the lens 11 into two parts, and when the lens assembly 10 moves to the right in the direction of the drawing of fig. 9, the first wiper 31 wipes the left part of the lens 11, and the second wiper 32 wipes the right part of the lens 11.

It is understood that, in order to secure the cleaning effect of the wiper 30 on the lens 11, in the embodiment shown in fig. 4 and 5, the first wiper 31 and the second wiper 32 may each be configured as an elongated wiper 30 extending in the Z direction in which the size of the first wiper 31 and the size of the second wiper 32 are not smaller than the size of the lens 11 in the Z direction to cover the lens 11 in the Z direction.

In addition, in other embodiments of the present disclosure not shown, the wiper 30 may be only one, for example, referring to fig. 4 and 5, only one of the first wiper 31 and the second wiper 32 may be provided, and such an arrangement may also ensure that the portion of the lens 11 located in the open area 21 remains clean.

The specific material of the wiper 30 is not limited in the present disclosure, and optionally, in an embodiment of the present disclosure, the wiper 30 may be a rubber member.

Additionally, the wipers 30 may be mounted to the base 20 in any suitable manner, such as being embedded in the base 20.

In order to facilitate the movement of the lens assembly 10 on the base 20, as shown in fig. 3, in the present disclosure, the lens assembly 10 may include an outer frame 12 and a lens 11 embedded in the outer frame 12, one of the base 20 and the outer frame 12 is provided with a guide groove 241 extending in the X direction, and the other of the base 20 and the outer frame 12 is provided with a guide rail 121 for slidably fitting with the guide groove 241. Through setting up guide rail 121 and guide slot 241 complex mode, when being favorable to lens assembly 10 to follow predetermined orbit and removing, still be favorable to lens assembly 10 to remove on base 20 smoothly, be favorable to guaranteeing that the cleaning work to lens 11 can go on smoothly.

The guiding groove 241 may be formed on the base 20, or may be disposed on the outer frame 12 of the lens assembly 10, which is not limited in the present disclosure. As shown in fig. 3, in one embodiment of the present disclosure, the guide groove 241 is disposed on the base 20, and the guide rail 121 is disposed on the base 20, for example, on the top cover 24 of the base 20 (see below in detail).

In the present disclosure, the driving assembly 40 may have any suitable composition as long as it can drive the lens assembly 10 to move back and forth in the X direction, and the present disclosure does not limit this.

As shown in fig. 4 and 5, optionally, in an embodiment of the present disclosure, the driving assembly 40 may include a motor 41 and a swing arm 42, a rotating shaft 411 of the motor 41 is arranged along the Y direction, one end of the swing arm 42 is provided with a sleeve 421, and the sleeve 421 is fixed on the rotating shaft 411 of the motor 41 in a sleeved manner to be in transmission connection with the rotating shaft 411. The other end of the swing arm 42 is provided with a sliding block 422, the outer frame 12 is provided with a sliding slot 123 extending along the Z direction, the sliding block 422 is movably fitted in the sliding slot 123, so that when the swing arm 42 rotates along with the rotating shaft 411 of the motor 41, the sliding block 422 can drive the lens assembly 10 to reciprocate in the X direction.

In the present embodiment, the operation of the driving assembly 40 is as follows: when the rotating shaft 411 of the motor 41 rotates, the swing arm 42 is driven to rotate, so that the sliding block 422 arranged on the swing arm 42 moves in the sliding slot 123 along the Z direction while rotating around the rotating shaft 411 of the motor 41, and applies force to the corresponding side wall of the two side walls of the sliding slot 123 in the X direction, thereby driving the driving assembly 40 to move left or right in the X direction. The motor 41 and the rocker 42 are matched to drive the lens assembly 10 to move, and the structure is simple and reliable. Moreover, by disposing the rotating shaft 411 of the motor 41 in the Y direction, it is also advantageous to reduce the size of the lens assembly 100 in the X direction.

In addition, in the present embodiment, by changing the power of the motor 41, the speed of movement of the lens 11 can be adjusted to obtain different cleaning effects.

Alternatively, as shown in fig. 2 and 8, the motor 41 may be mounted on the base plate 22 by a motor mount 43.

In other not shown embodiments of the present disclosure, the drive assembly 40 may include a linear motor 41, a cylinder structure, a hydraulic cylinder structure, or the like. Taking the linear motor 41 as an example, the linear motor 41 can be disposed at one end of the base 20 in the X direction, and the telescopic rod of the linear motor 41 is connected to the outer frame 12 of the lens assembly 10, so that the telescopic rod of the motor 41 drives the lens assembly 10 to reciprocate in the X direction when stretching in the X direction.

In order to improve the cleaning effect of the wiper 30 on the lens 11, as shown in fig. 6 and 7, in an embodiment of the present disclosure, a nozzle set may be disposed on the base 20, and the nozzle set is used for spraying a cleaning liquid (e.g., glass water) onto the lens 11, and based on this, the cleaning effect of the wiper 30 on the lens 11 can be improved when the cleaning liquid is used in cooperation with the nozzle set.

Wherein the nozzle group may include a first nozzle 51, a second nozzle 52, a third nozzle 53 and a fourth nozzle 54, the first nozzle 51 and the second nozzle 52 being located at opposite sides of the first wiper 31, and the third nozzle 53 and the fourth nozzle 54 being located at opposite sides of the second wiper 32 in the X direction. In the X direction, a first nozzle 51, a second nozzle 52, a third nozzle 53, and a fourth nozzle 54 are arranged in order.

So configured, can make the nozzle group have first mode of operation and second mode of operation. In the first operation mode, referring to fig. 8 and 9, the center of the lens 11 in the X direction is moved toward the second wiper 32 (away from the first wiper 31) by the driving assembly 40, and the first nozzle 51 and the third nozzle 53 simultaneously spray the cleaning liquid toward the lens 11. In this way, the first wiper 31 located forward in the advancing direction of the first nozzle 51 can wipe the portion of the lens 11 where the cleaning liquid from the first nozzle 51 remains during the movement of the lens 11. Also, the second wiper 32 located forward in the advancing direction of the third nozzle 53 can wipe the portion of the lens 11 where the cleaning liquid from the third nozzle 53 remains.

In the second operation mode, referring to fig. 10 and 11, the center of the lens 11 in the X direction is moved toward the first wiper 31 (away from the second wiper 32) by the driving assembly 40, and the second nozzle 52 and the fourth nozzle 54 simultaneously spray the cleaning liquid toward the lens 11. In this way, during the movement of the lens 11, the first wiper 31 located forward in the advancing direction of the second nozzle 52 can wipe the portion of the lens 11 where the cleaning liquid from the second nozzle 52 remains. Also, the second wiper 32 located on the forward side in the advancing direction of the fourth nozzle 54 can wipe the portion of the lens 11 where the cleaning liquid from the fourth nozzle 54 remains.

In this embodiment, the first nozzle 51 and the third nozzle 53 spray the cleaning liquid at the same time, and the second nozzle 52 and the fourth nozzle 54 spray the cleaning liquid at the same time, and cooperate with the first wiper 31 and the second wiper 32 to use, in the single movement process of the lens 11, the lens 11 can be cleaned integrally once, which is beneficial to improving the cleaning efficiency of the lens 11.

It is understood that in other embodiments of the present application, the nozzle set may have other corresponding operation modes according to actual requirements, for example, the first nozzle 51, the second nozzle 52, the third nozzle 53 and the fourth nozzle 54 may also independently spray the cleaning liquid.

As shown in fig. 7, alternatively, the first nozzle 51, the second nozzle 52, the third nozzle 53, and the fourth nozzle 54 may be respectively plural, and the plural first nozzles 51 may be arranged on the base 20 at intervals in the Z direction. Likewise, a similar arrangement of the second plurality of nozzles 52, the third plurality of nozzles 53, and the fourth plurality of nozzles 54 may be used.

Through the technical scheme, the lens assembly 100 can adopt different cleaning modes according to specific use scenes. For example, in rainy days, the movement frequency of the lens 11 can be adjusted according to the rainfall to improve the cleaning effect. When the lens 11 has shellac or gum, the lens 11 can be cleaned by spraying a cleaning liquid (e.g., glass water) + moving the lens 11 for a plurality of times. When the lens 11 has dust and other dirt which is easy to clean, the lens 11 can be cleaned by spraying glass water and moving the lens 11 once or for multiple times.

As shown in fig. 12-14, in one embodiment of the present disclosure, the lens assembly 100 may further include a connector 90 and a channel 60 disposed on the base 20 for passing the cleaning liquid, an inlet of the connector 90 is connected to the cleaning liquid supply tank 300, and an outlet of the connector 90 is connected to an inlet of the channel 60 for supplying the cleaning liquid to the nozzle set.

A direction changing member 70 is provided in the passage 60 to realize that the passage 60 supplies the cleaning liquid to the first nozzle 51 and the third nozzle 53 through the direction changing member 70 as shown in fig. 12, or supplies the cleaning liquid to the second nozzle 52 and the fourth nozzle 54 as shown in fig. 14. In this way, the cleaning liquid can be selectively supplied to the corresponding nozzle according to the moving direction of the lens 11. For example, when the nozzle group is in the first operation mode, the cleaning liquid from the cleaning liquid supply tank 300 is supplied to the first and third nozzles 51 and 53 by the action of the direction changing member 70, and the supply of the cleaning liquid to the third and fourth nozzles 53 and 54 is intercepted. In addition, when the cleaning liquid is not required to be supplied, for example, in rainy weather and the foreign materials on the lens 11 are easily washed, the cleaning liquid supplied from the intercepting passage 60 to the first nozzle 51, the second nozzle 52, the third nozzle 53 and the fourth nozzle 54 may be implemented by the reversing member 70. The provision of a single diverter 70 to divert the cleaning fluid facilitates simplifying the construction of the lens assembly 100.

The present disclosure does not limit the specific structure of the direction changing member 70 as long as the above-described function can be achieved. As shown in fig. 12 to 15, alternatively, in one embodiment of the present disclosure, the channel 60 may include a first channel segment 61 extending in the X direction, and second and third channel segments 62 and 63 formed at opposite ends of the first channel segment 61.

The liquid inlet of the first nozzle 51 and the liquid inlet of the second nozzle 52 are positioned in the first channel section 61, and the liquid inlets of the first nozzle 51 and the second nozzle 52 are arranged at intervals in the X direction. The liquid inlet of the third nozzle 53 and the liquid inlet of the fourth nozzle 54 are positioned in the second channel section 62, and the liquid inlet of the third nozzle 53 and the liquid inlet of the fourth nozzle 54 are arranged at intervals in the X direction.

As shown in fig. 15, the direction changing member 70 is configured as a rod-shaped member including a first rod section 71 and a second rod section 72 and a third rod section 73 that form opposite ends of the first rod section 71, the first rod section 71 is slidably fitted in the first passage section 61 in the X direction, and an outer wall of the first rod section 71 is in contact with an inner wall of the first passage section 61, so that the direction changing member 70 can be moved in the first passage section 61 while blocking the first passage section 61 by the first rod section 71.

The reversing element 70 has a hollow passage, and the first rod segment 71 is provided with a first opening 711, and the first opening 711 is used for communicating the hollow passage with the liquid outlet of the joint 90. The second rod section 72 is provided with a second opening 721 communicated with the hollow channel, the second opening 721 is used for selectively communicating with the liquid inlet 511 of the first nozzle 51 or the liquid inlet 521 of the second nozzle 52, i.e. the second opening 721 is used for selectively communicating the hollow channel with one of the liquid inlet of the first nozzle 51 and the liquid inlet of the second nozzle 52. That is, the second opening 721 is used for communicating the hollow channel with the liquid inlet of the first nozzle 51, or the second opening 721 communicates the hollow channel with the liquid inlet of the second nozzle 52, or the second opening 721 moves between the liquid inlet of the first nozzle 51 and the liquid inlet of the second nozzle 52, so that the hollow channel is not communicated with both.

The third rod section 73 is provided with a hollow channel third opening 731, the third opening 731 is used for selectively communicating with the liquid inlet 531 of the third nozzle 53 or the liquid inlet 541 of the fourth nozzle 54, that is, the third opening 731 is used for selectively communicating the hollow channel with one of the liquid inlet of the third nozzle 53 and the liquid inlet of the fourth nozzle 54. That is, the third opening 731 is used to communicate the hollow channel with the liquid inlet of the third nozzle 53, or the third opening 731 communicates the hollow channel with the liquid inlet of the fourth nozzle 54, or the third opening 731 is moved between the liquid inlet of the third nozzle 53 and the liquid inlet of the fourth nozzle 54, so that the hollow channel is not communicated with both.

Based on this, by selecting the second and third openings 721 and 731 to be connected to the liquid inlet of the corresponding nozzle, the first and third nozzles 51 and 53 can be controlled to spray the cleaning liquid at the same time, and at this time, the second and fourth nozzles 52 and 54 can be prevented from spraying the cleaning liquid.

It is understood that in other embodiments disclosed, the reversing element 70 may be a plurality of valves respectively disposed at the positions of the liquid inlet 511 of the first nozzle 51, the liquid inlet 521 of the second nozzle 52, the liquid inlet 531 of the third nozzle 53 and the liquid inlet 541 of the fourth nozzle 54, and the liquid inlet or the liquid outlet of the corresponding nozzle can be controlled by opening or closing the corresponding valve.

Fig. 16 is a schematic diagram of a cleaning liquid supply path of a lens assembly according to an embodiment of the present disclosure, and as shown in fig. 16, the cleaning liquid in the cleaning liquid supply tank 300 may be pumped to the switch valve 500 by the pump 400, and whether to supply the cleaning liquid to the direction changing member 70 may be determined by opening the switch valve 500. The cleaning liquid can be supplied to the direction changing member 70 (i.e., the direction changing valve) via the switching valve 500, and then the cleaning liquid is changed by the cooperation of the direction changing member 70 and the passage 60 so that the cleaning liquid can be selectively supplied to the first nozzle 51, the second nozzle 52, the third nozzle 53, and the fourth nozzle 54.

In the present disclosure, the channel 60 may be disposed on the base 20 in any suitable manner, as shown in fig. 12, in one embodiment of the present disclosure, the base 20 may include a bottom plate 22, the lens assembly 100 may further include a bottom cover 23, a bottom surface of the bottom plate 22 is provided with a groove, and the groove and a surface of the bottom cover 23 facing the bottom plate 23 jointly define the channel 60. The grooves are easy to process, a split structure is adopted to limit the way of arranging the channel 60, the processing is convenient, and the channel with an ideal shape is easy to process, such as the first channel section 61, the second channel section 62 and the third channel section 63.

As shown in fig. 4, 5, 12-14, in one embodiment of the present disclosure, the lens assembly 10 has a first limit position and a second limit position in the X direction, and the lens assembly 10 is coupled to the reversing element 70 such that when the lens assembly 10 moves from one of the first limit position and the second limit position toward the other, the reversing element 70 is moved in the first channel section 61, thereby reversing the cleaning liquid in the channel 60. That is, in this embodiment, lens assembly 10 and switching-over piece 70 link, so, when lens assembly 10 removed, switching-over piece 70 also can follow the removal simultaneously, and the injection of timely control cleaning solution need not set up the switching-over of drive structure drive switching-over valve 500 alone again, still does benefit to the structure of simplifying lens subassembly 100 when being favorable to improving cleaning solution injection efficiency.

In the present disclosure, the manner of linkage of the diverter 70 with the lens assembly 10 can be varied. As shown in fig. 4 and 5, the reversing element 70 is provided with a first protrusion 74, the lens assembly 10 is provided with a second protrusion 124 and a third protrusion 125, the second protrusion 124 and the third protrusion 125 are located on two sides of the first protrusion 74 in the X direction, and the first protrusion 74 has a first abutting surface and a second abutting surface which are oppositely arranged in the X direction. In the first limit position, the second protrusion 124 abuts against one side of the first protrusion 74 in the X direction, and in the second limit position, the third protrusion 125 abuts against the other side of the first protrusion 74 in the X direction. Therefore, when the lens assembly 10 moves in the X direction, the second protrusion 124 and the third protrusion 125 can respectively cooperate with the first abutting portion of the first protrusion 74 to drive the reversing element 70 to move, so as to reverse the cleaning liquid.

Alternatively, in the first extreme position, the second opening 721 is at a position just in communication with the hollow passage and the liquid inlet of the first nozzle 51, and the third opening 731 is at a position just in communication with the hollow passage and the liquid inlet of the third nozzle 53. In the second extreme position, the second opening 721 is at a position just in communication with the liquid inlet of the hollow passage and the second nozzle 52, and the third opening 731 is at a position just in communication with the liquid inlet of the hollow passage and the fourth nozzle 54.

The present disclosure is not limited to the specific structure of the base 20. As shown in fig. 6, in one embodiment of the present disclosure, the base 20 may include a bottom plate 22 and two L-shaped plates 25 disposed at both ends of the bottom plate 22 at intervals in the X direction, the L-shaped plates 25 including first portions 251 extending in the X direction and second portions 252 extending in the Y direction, and an area between the two first portions 251 of the two L-shaped plates 25 being an open area 21.

Alternatively, as shown in fig. 2 and 3, the base 20 may further include a top cover 24, and the guide groove 241 is provided on the top cover 24. The bottom plate 22 is provided with a through slot extending along the X direction, so that the lower end of the outer frame 12 of the lens assembly 10 can pass through the upper surface of the bottom plate 22 to be coupled with the reversing element 70. Therefore, in the embodiment shown in fig. 2 and 3, the guide groove 241 is disposed on the top cover 24, and can cooperate with the through groove to guide the upper and lower ends of the lens assembly 10.

As shown in fig. 17, in the present disclosure, the lens assembly 100 may further include a housing 80, the housing 80 has an open end, the open area 21 is located at one side of the open end, the lens assembly 10, the wiper 30 and the driving assembly 40 are all located inside the housing 80, and the housing 80 further includes a space for accommodating an optical sensor (e.g., the camera 200). The housing 80 can protect the optical sensor such as the optical camera 200 and the lens assembly 10. In addition, the lens assembly 100 is integrated into a single piece, and different cameras can be obtained by replacing different cameras 200. Correspondingly, the lens assembly 100 may further be correspondingly provided with a plurality of mounting brackets to correspondingly mount the cameras 200 with different mounting structures.

According to another aspect of the present disclosure, a camera device is provided, which includes a camera head 200 and the lens assembly 100, and light rays passing through the lens 1) can be transmitted to the camera head 200.

The camera 200 is disposed behind the lens 11 to photograph a subject located in front of the lens 11. Specifically, the camera head 200 may be mounted on the base 20 and within the housing 80 by mounting brackets.

According to still another aspect of the present disclosure, there is provided an unmanned vehicle including the image pickup device described above.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.