Lens assembly, camera device and unmanned vehicle

Abstract

The present disclosure relates to a lens assembly, a camera device and an unmanned vehicle. The lens assembly can be used in vehicles in the field of autonomous driving. The lens assembly includes a lens assembly, a base, a wiper and a drive assembly. The lens assembly includes a lens. An open area for light transmission is provided on the base. The wiper is used to wipe the lens. The wiper is located at other parts of the base outside the open area. The drive assembly is used to drive the lens assembly to move on the base so that the wiper can wipe the lens during the movement of the lens and cover the open area. Wiping the lens directly with the wiper is conducive to ensuring the cleaning effect of the lens. By fixing the position of the wiper and setting the lens as a movable part, the wiper is used to clean the lens during the movement of the lens. When the wiper cleans the lens, it will not affect the normal operation of the optical sensor, allowing the lens to be cleaned when the vehicle is unmanned.

Description

Technical Field

[0001] The present disclosure relates to the technical field of unmanned vehicle parts, and in particular, to a lens assembly, a camera device and an unmanned vehicle. Background Art

[0002] Autonomous driving requires multiple cameras. Autonomous vehicles are exposed to wind and sun in the driving environment. Dirt (rain, snow, dust, gum, etc.) in the environment will adhere to the outside of the camera lens, affecting the vision of the autonomous driving, thus affecting the performance and safety of the autonomous driving. Therefore, cleaning the camera has become a problem that various autonomous driving companies and car companies are trying to solve.

[0003] To address this problem, there are two main cleaning methods in the related art: Method 1, spraying glass water onto the lens and then blowing away or drying the water stains by jetting air; Method 2, setting up windshield wipers similar to those on passenger cars and using the wipers to directly wipe the lens surface.

[0004] However, method 1 is suitable for cleaning dust or water-soluble stains on the surface, but it is difficult to clean when encountering shellac, heavy rain, and heavy snow. Although method 2 cleans more thoroughly than method 1, it cannot be started during the vehicle's automatic driving process because the wiper movement will affect the camera's recognition work, and is not suitable for unmanned vehicles. Summary of the invention

[0005] The purpose of the present disclosure is to provide a lens assembly, a camera device and an unmanned vehicle to at least partially solve the above-mentioned technical problems existing in the related art.

[0006] In order to achieve the above object, the present disclosure provides a lens assembly, comprising:

[0007] Lens assembly, including lens;

[0008] A base, wherein the base is provided with an open area for light transmission;

[0009] A wiping piece, used for wiping the lens, wherein the wiping piece is located at other parts of the base outside the open area;

[0010] A driving assembly, used for driving the lens assembly to move on the base, so that the wiping member can wipe the lens during the movement of the lens;

[0011] Wherein, during the process of the wiping member wiping the lens, the lens covers the open area.

[0012] Optionally, the wiper comprises a first wiper and a second wiper spaced apart in the 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 able to reciprocate in the X direction under the drive of the drive assembly.

[0013] 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 slidingly cooperating with the guide groove.

[0014] Optionally, the driving assembly includes a motor and a rocker arm, the rotating shaft of the motor is arranged along the Y direction; a sleeve is provided at one end of the rocker arm, the sleeve is sleeved and fixed on the rotating shaft, and a slider is provided at the other end of the rocker arm; a slide groove extending along the Z direction is provided on the outer frame, and the slider is movably engaged in the slide groove, so that when the rocker arm rotates with the rotating shaft, the slider can drive the lens assembly to reciprocate in the X direction.

[0015] Optionally, a nozzle group is provided on the base, and the nozzle group is used to spray cleaning liquid onto the lens. The nozzle group includes 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 opposite sides of the first wiping member, and the third nozzle and the fourth nozzle are located on opposite sides of the second wiping member, and the first nozzle, the second nozzle, the third nozzle and the fourth nozzle are arranged in sequence.

[0016] Optionally, the nozzle group has a first working mode and a second working mode. In the first working mode, driven by the driving assembly, the center of the lens in the X direction moves toward the direction close to the second wiping member, and the first nozzle and the third nozzle simultaneously spray cleaning liquid toward the lens. In the second working mode, driven by the driving assembly, the center of the lens in the X direction moves toward the direction close to the first wiping member, and the second nozzle and the fourth nozzle simultaneously spray cleaning liquid toward the lens.

[0017] Optionally, the lens assembly also includes a joint and a channel arranged on the base for cleaning liquid to pass through, the liquid inlet of the joint is used to be connected to a cleaning liquid supply box, the liquid outlet of the joint is connected to the liquid inlet of the channel to provide cleaning liquid to the nozzle group, and a switching element is arranged in the channel to enable the channel to provide cleaning liquid to the first nozzle and the third nozzle, or to provide cleaning liquid to the second nozzle and the fourth nozzle through the switching element, or to cut off the supply of cleaning liquid from the channel to the first nozzle, the second nozzle, the third nozzle and the fourth nozzle.

[0018] 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 opposite ends of the first channel section, the liquid inlet of the first nozzle and the liquid inlet of the second nozzle are located in 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 in the third channel section and are arranged at intervals in the X direction, the reversing member is constructed as a rod-shaped member, including a first rod section and a second rod section and a third rod section forming opposite ends of the first rod section, the first rod section is slidably fitted in the first channel section in the X direction The outer wall of the first rod segment contacts the inner wall of the first channel segment, the reversing member has a hollow channel, the first rod segment is provided with a first opening, the first opening is used to connect the hollow channel with the liquid outlet of the joint, the second rod segment is provided with a second opening connected to the hollow channel, the second opening is used to selectively connect with the liquid inlet of the first nozzle or the liquid inlet of the second nozzle, the third rod segment is provided with a third opening connected to the hollow channel, the third opening is used to selectively connect with the liquid inlet of the third nozzle or the liquid inlet of the fourth nozzle.

[0019] Optionally, the lens assembly further includes a bottom cover, the base includes a bottom plate, a bottom surface of the bottom plate is provided with a groove, and the groove and a surface of the bottom cover facing the bottom plate together define the channel.

[0020] Optionally, the lens assembly has a first extreme position and a second extreme position in the X direction, and the lens assembly is linked with the switching member so that when the lens assembly moves from one of the first extreme position and the second extreme position toward the other, it can drive the switching member to move in the first channel section to achieve reversal of the cleaning liquid.

[0021] Optionally, a first protrusion is provided on the reversing member, and a second protrusion and a third protrusion are provided on the lens assembly; in the X direction, the second protrusion and the third protrusion are located on both sides of the first protrusion in the X direction; in the first extreme position, the second protrusion abuts against one side of the first protrusion in the X direction; in the second extreme position, the third protrusion abuts against the other side of the first protrusion in the X direction.

[0022] Optionally, the base includes a bottom plate and two L-shaped plates arranged at both ends of the bottom plate in the X direction, the L-shaped plate includes a first portion extending along the X direction and a second portion extending along the Y direction, and the area between the two first portions is the open area.

[0023] Optionally, the lens assembly also includes a shell having an open end, the open area is located on the side where the open end is located, the lens assembly, the wiper and the drive assembly are all located inside the shell, and the shell also has a space for accommodating an optical sensor.

[0024] According to another aspect of the present disclosure, there is provided an imaging device, comprising a camera and the above-mentioned lens assembly, wherein light passing through the lens can be transmitted to the camera.

[0025] According to another aspect of the present disclosure, an unmanned vehicle is provided, comprising the above-mentioned camera device.

[0026] Through the above technical solution, in the lens assembly provided by the present invention, the lens is directly wiped by the wiper, which is conducive to ensuring the cleaning effect of the lens. In addition, by fixing the position of the wiper outside the open area and setting the lens as a movable part, the lens is cleaned by the wiper during the movement of the lens, which ensures that the normal operation of the optical sensor will not be affected when the wiper cleans the lens. In other words, the lens assembly provided by the present invention can ensure the cleaning effect of the lens while not interfering with the normal operation of the optical sensor, allowing the lens to be cleaned when the vehicle is unmanned, which is conducive to ensuring the performance and safety of the unmanned vehicle's automatic driving.

[0027] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0029] Figure 1 is a three-dimensional schematic diagram of a lens assembly provided by an embodiment of the present disclosure;

[0030] Figure 2 is an exploded schematic diagram of a lens assembly provided by an embodiment of the present disclosure, wherein a camera is also shown;

[0031] Figure 3 is a schematic structural diagram of some parts of a lens assembly provided in one embodiment of the present disclosure, wherein a top cover and a lens assembly are shown;

[0032] Figure 4 is a schematic structural diagram of some parts of a lens assembly provided by an 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;

[0033] Figure 5 is a schematic structural diagram of some parts of a lens assembly provided by an 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;

[0034] Figure 6 is a schematic structural diagram of some parts of a lens assembly provided in an embodiment of the present disclosure, wherein a top cover and a lens assembly are not shown;

[0035] Figure 7 yes Figure 6 A magnified schematic diagram of part A;

[0036] Figure 8 is a schematic structural diagram of some parts of a lens assembly provided by an embodiment of the present disclosure, wherein the top cover is not shown, the lens assembly is in a first extreme position and moves toward a second extreme position;

[0037] Fig. 9 yes Figure 8 A magnified schematic diagram of part B;

[0038] Fig.10 is a schematic structural diagram of some parts of a lens assembly provided by an embodiment of the present disclosure, wherein the top cover is not shown, and the lens assembly is in the second extreme position and moves toward the first extreme position;

[0039] Fig.11 yes Fig.10 A magnified schematic diagram of part C;

[0040] Fig.12 is a schematic diagram of the structure of some parts of the lens assembly provided by an embodiment of the present disclosure from a bottom side perspective, wherein, in order to facilitate observation of the reversing member, the bottom cover is moved away from the bottom plate of the base by a certain distance, and the reversing member provides cleaning liquid to the liquid inlet of the first nozzle and the liquid inlet of the third nozzle;

[0041] Fig.13is a schematic structural diagram of some parts of a lens assembly provided by an embodiment of the present disclosure from a bottom side perspective, wherein a reversing member is not shown;

[0042] Fig.14 is a schematic structural diagram of some parts of a lens assembly provided by an embodiment of the present disclosure from a bottom side perspective, wherein the reversing member provides cleaning liquid to the liquid inlet of the second nozzle and the liquid inlet of the fourth nozzle;

[0043] Fig.15 is a three-dimensional schematic diagram of a reversing member of a lens assembly provided in one embodiment of the present disclosure;

[0044] Fig.16 is a schematic diagram of a liquid circuit for supplying a cleaning liquid to a lens assembly provided in one embodiment of the present disclosure;

[0045] Fig.17 is a three-dimensional schematic diagram of a lens assembly provided in one embodiment of the present disclosure, wherein a housing is shown.

[0046] Description of Reference Numerals

[0047] 100-lens assembly; 10-lens assembly; 11-lens; 12-outer frame; 121-guide rail; 123-slide groove; 124-second protrusion; 125-third protrusion; 20-base; 21-open area; 22-bottom plate; 23-bottom cover; 24-top cover; 241-guide groove; 25-L-shaped plate; 251-first part; 252-second part; 30-wiping piece; 31-first wiping member; 32-second wiping member; 40-driving assembly; 41-motor; 411-rotating shaft; 42-rocker arm; 421-sleeve; 422-slider; 43-motor mounting seat; 51-first nozzle; 511-liquid inlet of the first nozzle; 52-second nozzle; 521-liquid inlet of the second nozzle; 53-third nozzle; 531-liquid inlet of the third nozzle; 54-fourth nozzle; 541-liquid inlet of the fourth nozzle; 60-channel; 61-first channel section; 62-second channel section; 63-third channel section; 64-liquid inlet of the channel; 70-reversing member; 71-first rod section; 711-first opening; 72-second rod section; 721-second opening; 73-third rod section; 731-third opening; 74-first protrusion; 80-housing; 90-connector; 200-camera; 300-cleaning liquid supply tank; 400-pump; 500-switch valve. DETAILED DESCRIPTION

[0048] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0049] In this disclosure, unless otherwise stated, directional words such as "top, bottom, left, right, front" are generally defined based on the drawing direction of the accompanying drawings; "inside" and "outside" refer to the inside and outside of the relevant parts. In addition, the terms "first", "second", etc. are only used to distinguish descriptions and cannot be understood as indicating or implying relative importance.

[0050] As mentioned in the background technology, in the related art, the cleaning effect of the lens 11 of the camera device of the unmanned vehicle is difficult to guarantee, or the cleaning process of the lens 11 may affect the normal driving of the unmanned vehicle, and both cannot be taken into account.

[0051] In view of this, if Figures 1 to 17 As shown, the present disclosure provides a lens assembly 100, which can be used in a camera device of an unmanned vehicle in the field of autonomous driving.

[0052] like Figures 1 to 6 As shown, the lens assembly 100 includes a lens assembly 10 , a base 20 , a wiper 30 and a drive assembly 40 .

[0053] The lens assembly 10 includes a lens 11, and an open area 21 for light transmission is provided on the base 20, that is, an open area 21 is provided on the base 20 for external light to pass through to illuminate the optical sensor (such as camera 200) located inside the camera device, so that the camera 200 can shoot normally.

[0054] The wiper 30 is used for wiping the lens 11 , and the wiper 30 is located at other parts of the base 20 outside the open area 21 , that is, the wiper 30 is not located on the open area 21 .

[0055] The driving assembly 40 is used to drive 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 the wiper 30 wiping the lens 11, the lens 11 covers the open area 21, so that the external light can be normally transmitted to the optical sensor through the lens 11. That is, in order to ensure the normal operation of the optical sensor, during the movement of the lens assembly 10, the lens 11 always covers the open area 21, so that the optical sensor can work normally.

[0056] It should be noted that the optical sensor here refers to an optical device that can receive external light through the lens 11, including but not limited to the camera 200, laser radar, etc. For the convenience of description, this article only takes the camera 200 as an example.

[0057] Through the above technical solution, in the lens assembly 100 provided by the present disclosure, the lens 11 is directly wiped by the wiper 30, which is conducive to ensuring the cleaning effect of the lens 11. In addition, by fixing the position of the wiper 30 located outside the open area 21 and setting the lens 11 as a movable part, the lens 11 is cleaned by the wiper 30 during the movement of the lens 11, ensuring that the normal operation of the camera 200 is not affected when the wiper 30 cleans the lens 11. In other words, the lens assembly 100 provided by the present disclosure can ensure the cleaning effect of the lens 11 while not interfering with the normal operation of the camera 200, allowing the lens 11 to be cleaned when the vehicle is unmanned, which is conducive to ensuring the performance and safety of the unmanned vehicle's automatic driving.

[0058] It is understandable that the lens assembly 100 disclosed in the present invention can be used not only in unmanned vehicles, but also in other vehicles, such as ordinary passenger cars, to improve the safety of the vehicle's automatic driving mode.

[0059] In addition, it can be understood that in order to avoid affecting the shooting work of the camera 200, the size of the open area 21 can match the size of the camera 200, for example, the area of ​​the open area 21 is greater than or equal to the area where the camera 200 receives light.

[0060] The present disclosure does not limit the movement 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 .

[0061] like Figure 2 and Figure 6 , Figure 7 As shown, 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 area 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 able to reciprocate in the X direction under the drive of the drive 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. When the lens assembly 10 reciprocates in the X direction, the first wiper 31 and the second wiper 32 cooperate to clean each part of the lens 11, thereby ensuring that the part of the lens 11 located between the first wiper 31 and the second wiper 32 that is actually used for light transmission can be cleaned.

[0062] For example, see Figures 8 to 11 The first wiper 31 and the second wiper 32 divide the lens 11 into two parts. Fig. 9When moving to the right side in the direction of the drawing, the first wiping member 31 can wipe the left portion of the lens 11, and the second wiping member 32 can wipe the right portion of the lens 11.

[0063] It is understandable that in order to ensure the cleaning effect of the wiper 30 on the lens 11, Figure 4 In the embodiment shown in Figure 5, the first wiper 31 and the second wiper 32 can be both constructed as long strip wipers 30 extending along the Z direction. In the Z direction, the size of the first wiper 31 and the size of the second wiper 32 are not less than the size of the lens 11 in the Z direction so as to cover the lens 11 in the Z direction.

[0064] In addition, in other embodiments not shown in the present disclosure, the wiper 30 may be only one, for example, Figure 4 and Figure 5 Only one of the first wiper 31 and the second wiper 32 may be provided. This arrangement can also ensure that the portion of the lens 11 located in the open area 21 remains clean.

[0065] The present disclosure does not limit the specific material of the wiper 30 . Optionally, in one embodiment of the present disclosure, the wiper 30 may be a rubber member.

[0066] In addition, the wiper 30 may be mounted on the base 20 in any appropriate manner, for example, embedded in the base 20 .

[0067] In order to facilitate the movement of the lens assembly 10 on the base 20, Figure 3 As shown, 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 slidingly cooperating with the guide groove 241. By providing a mode of cooperating between the guide rail 121 and the guide groove 241, it is beneficial for the lens assembly 10 to move along a preset track, and it is also beneficial for the lens assembly 10 to move smoothly on the base 20, which is beneficial for ensuring that the cleaning work of the lens 11 can be carried out smoothly.

[0068] The guide groove 241 may be formed on the base 20 or on the outer frame 12 of the lens assembly 10, which is not limited in the present disclosure. Figure 3 As shown, 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, disposed on the top cover 24 of the base 20 (see below for details).

[0069] In the present disclosure, the driving assembly 40 may have any appropriate composition as long as it can drive the lens assembly 10 to move back and forth in the X direction, and the present disclosure is not limited to this.

[0070] like Figure 4 and Figure 5 As shown, optionally, in one embodiment of the present disclosure, the driving assembly 40 may include a motor 41 and a rocker arm 42, the rotating shaft 411 of the motor 41 is arranged along the Y direction, and a sleeve 421 is provided at one end of the rocker arm 42, and the sleeve 421 is sleeved and fixed on the rotating shaft 411 of the motor 41 to be transmission-connected with the rotating shaft 411. A slider 422 is provided at the other end of the rocker arm 42, and a slide groove 123 extending along the Z direction is provided on the outer frame 12, and the slider 422 is movably fitted in the slide groove 123, so that when the rocker arm 42 rotates with the rotating shaft 411 of the motor 41, the slider 422 can drive the lens assembly 10 to move back and forth in the X direction.

[0071] In this embodiment, the working process of the driving assembly 40 is as follows: when the rotating shaft 411 of the motor 41 rotates, the rocker arm 42 is driven to rotate, so that the slider 422 arranged on the rocker arm 42 rotates around the rotating shaft 411 of the motor 41 and moves in the Z direction in the slide groove 123, exerting force on the corresponding side wall of the two side walls of the slide groove 123 in the X direction, thereby driving the driving assembly 40 to move left or right in the X direction. Through the cooperation of the motor 41 and the rocker arm 42, the movement of the lens assembly 10 can be driven, and the structure is simple and reliable. Moreover, by arranging the rotating shaft 411 of the motor 41 in the Y direction, it is also beneficial to reduce the size of the lens assembly 100 in the X direction.

[0072] In addition, in this embodiment, by changing the power of the motor 41, the moving speed of the lens 11 can be adjusted to obtain different cleaning effects.

[0073] Alternatively, if Figure 2 and Figure 8 As shown, the motor 41 can be mounted on the base plate 22 via a motor mounting seat 43 .

[0074] In other embodiments of the present disclosure that are not shown, the drive assembly 40 may include a linear motor 41, a cylinder structure, a hydraulic cylinder structure, etc. Taking the linear motor 41 as an example, the linear motor 41 may be arranged at one end of the base 20 in the X direction, and the telescopic rod of the linear motor 41 may be connected to the outer frame 12 of the lens assembly 10, so that when the telescopic rod of the motor 41 is extended and retracted along the X direction, the lens assembly 10 is driven to reciprocate in the X direction.

[0075] In order to improve the cleaning effect of the wiper 30 on the lens 11, Figure 6 and Figure 7In one embodiment of the present disclosure, a nozzle group may be provided on the base 20, and the nozzle group is used to spray cleaning liquid (such as glass water) onto the lens 11. Based on this, the cleaning effect of the wiper 30 on the lens 11 can be improved when used in conjunction with the cleaning liquid.

[0076] The nozzle group may include a first nozzle 51, a second nozzle 52, a third nozzle 53 and a fourth nozzle 54. In the X direction, the first nozzle 51 and the second nozzle 52 are located on opposite sides of the first wiper 31, and the third nozzle 53 and the fourth nozzle 54 are located on opposite sides of the second wiper 32. In the X direction, the first nozzle 51, the second nozzle 52, the third nozzle 53 and the fourth nozzle 54 are arranged in sequence.

[0077] This arrangement enables the nozzle group to have a first working mode and a second working mode. In the first working mode, see Figure 8 and Fig. 9 , driven by the driving assembly 40, the center of the lens 11 in the X direction moves toward the direction close to the second wiping member 32 (away from the first wiping member 31), and the first nozzle 51 and the third nozzle 53 simultaneously spray the cleaning liquid to the lens 11. In this way, during the movement of the lens 11, the first wiping member 31 located in front of the first nozzle 51 in the forward direction can wipe the portion of the lens 11 where the cleaning liquid from the first nozzle 51 remains. Similarly, the second wiping member 32 located in front of the third nozzle 53 in the forward direction can wipe the portion of the lens 11 where the cleaning liquid from the third nozzle 53 remains.

[0078] In the second operating mode, see Fig.10 and Fig.11 , driven by the driving assembly 40, the center of the lens 11 in the X direction moves toward the direction close to the first wiping member 31 (away from the second wiping member 32), and the second nozzle 52 and the fourth nozzle 54 simultaneously spray the cleaning liquid to the lens 11. In this way, during the movement of the lens 11, the first wiping member 31 located in front of the second nozzle 52 in the forward direction can wipe the portion of the lens 11 where the cleaning liquid from the second nozzle 52 remains. Similarly, the second wiping member 32 located in front of the fourth nozzle 54 in the forward direction can wipe the portion of the lens 11 where the cleaning liquid from the fourth nozzle 54 remains.

[0079] In this embodiment, the first nozzle 51 and the third nozzle 53 spray cleaning liquid at the same time, and the second nozzle 52 and the fourth nozzle 54 spray cleaning liquid at the same time, and are used in conjunction with the first wiper 31 and the second wiper 32. During a single movement of the lens 11, the entire lens 11 can be cleaned once, which is beneficial to improving the efficiency of cleaning the lens 11.

[0080] It is understandable that in other embodiments of the present application, the nozzle group may have other corresponding working modes according to actual needs. 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.

[0081] like Figure 7 As shown, optionally, the first nozzle 51, the second nozzle 52, the third nozzle 53 and the fourth nozzle 54 can be multiple, and the multiple first nozzles 51 can be arranged on the base 20 at intervals along the Z direction. Similarly, the multiple second nozzles 52, the multiple third nozzles 53 and the multiple fourth nozzles 54 can also be arranged in a similar manner.

[0082] Through the above technical solution, the lens assembly 100 can adopt different cleaning modes according to specific usage scenarios. For example, on rainy days, the movement frequency of the lens 11 can be adjusted according to the rainfall to improve the cleaning effect. When there is shellac or gum on the lens 11, the lens 11 can be cleaned by spraying cleaning liquid (such as glass water) + moving the lens 11 multiple times. When there are easy-to-clean stains such as floating dust on the lens 11, the lens 11 can be cleaned by spraying glass water + moving the lens 11 once or multiple times.

[0083] like Figure 12 to Figure 14 As shown, in one embodiment of the present disclosure, the lens assembly 100 may also include a connector 90 and a channel 60 disposed on the base 20 for the cleaning liquid to pass through, the liquid inlet of the connector 90 is used to be connected to the cleaning liquid supply tank 300 body, and the liquid outlet of the connector 90 is connected to the liquid inlet of the channel 60 to provide cleaning liquid to the nozzle group.

[0084] A reversing member 70 is disposed in the channel 60 so as to enable the channel 60 to provide cleaning liquid to the first nozzle 51 and the third nozzle 53 through the reversing member 70. Fig.12 Alternatively, a cleaning liquid is provided to the second nozzle 52 and the fourth nozzle 54, as shown in Fig.14 As shown. 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 working mode, the cleaning liquid from the cleaning liquid supply tank 300 is supplied to the first nozzle 51 and the third nozzle 53 by the action of the reversing member 70, and the supply of the cleaning liquid to the third nozzle 53 and the fourth nozzle 54 is cut off. In addition, when it is not necessary to supply the cleaning liquid, for example, on rainy days and when the debris on the lens 11 is easy to clean, the reversing member 70 can be used to cut off the supply of the cleaning liquid from the channel 60 to the first nozzle 51, the second nozzle 52, the third nozzle 53 and the fourth nozzle 54. Providing a single reversing member 70 to reverse the cleaning liquid is conducive to simplifying the structure of the lens assembly 100.

[0085] The present disclosure does not limit the specific structure of the switching element 70, as long as it can achieve the above functions. Figures 12 to 15 As shown, optionally, in an embodiment of the present disclosure, the channel 60 may include a first channel segment 61 extending along the X direction and a second channel segment 62 and a third channel segment 63 formed at opposite ends of the first channel segment 61 .

[0086] The liquid inlet of the first nozzle 51 and the liquid inlet of the second nozzle 52 are located in the first channel section 61, and the liquid inlet of the first nozzle 51 and the liquid inlet of 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 located 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.

[0087] like Fig.15 As shown, the switching member 70 is constructed as a rod-shaped member, including a first rod segment 71 and a second rod segment 72 and a third rod segment 73 forming opposite ends of the first rod segment 71. The first rod segment 71 is slidably fitted in the first channel segment 61 in the X direction, and the outer wall of the first rod segment 71 contacts the inner wall of the first channel segment 61, so that the switching member 70 can block the first channel segment 61 through the first rod segment 71 and can also move in the first channel segment 61.

[0088] The reversing member 70 has a hollow channel, and a first opening 711 is provided on the first rod section 71. The first opening 711 is used to connect the hollow channel with the liquid outlet of the joint 90. A second opening 721 is provided on the second rod section 72 to communicate with the hollow channel. The second opening 721 is used to selectively communicate with the liquid inlet 511 of the first nozzle 51 or the liquid inlet 521 of the second nozzle 52, that is, the second opening 721 is used to selectively connect 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 to connect the hollow channel with the liquid inlet of the first nozzle 51, or the second opening 721 connects 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 connected with either of them.

[0089] The third rod section 73 is provided with a third opening 731 connected to the hollow channel, and the third opening 731 is used to selectively communicate 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 to selectively connect 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 connect the hollow channel with the liquid inlet of the third nozzle 53, or the third opening 731 connects the hollow channel with the liquid inlet of the fourth nozzle 54, or the third opening 731 moves 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 connected with both.

[0090] Based on this, by selecting the second opening 721 and the third opening 731 to be connected to the liquid inlet of the corresponding nozzle, the first nozzle 51 and the third nozzle 53 can be controlled to spray the cleaning liquid at the same time, and at this time, the second nozzle 52 and the fourth nozzle 54 can be prevented from spraying the cleaning liquid.

[0091] It can be understood that in other disclosed embodiments, the reversing member 70 can be a plurality of valves respectively arranged at 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. By opening or switching on the corresponding valve, whether the corresponding nozzle is supplied with liquid can be controlled.

[0092] Fig.16 FIG. 1 is a schematic diagram of a liquid circuit for supplying cleaning liquid to a lens assembly according to an embodiment of the present disclosure. Fig.16 As shown, the cleaning liquid in the cleaning liquid supply tank 300 can be pumped to the switch valve 500 by the pump 400, and whether the cleaning liquid is supplied to the reversing member 70 can be determined by the opening and closing of the switch valve 500. The cleaning liquid through the switch valve 500 can be supplied to the reversing member 70 (i.e., the reversing valve), and then the cleaning liquid is reversed by the cooperation of the reversing member 70 and the channel 60, so that the cleaning liquid can be selectively provided to the first nozzle 51, the second nozzle 52, the third nozzle 53, and the fourth nozzle 54.

[0093] In the present disclosure, the channel 60 can be arranged on the base 20 in any suitable manner, such as Fig.12 As shown, in one embodiment of the present disclosure, the base 20 may include a bottom plate 22, and the lens assembly 100 may further include a bottom cover 23. The bottom surface of the bottom plate 22 is provided with a groove, and the groove and the surface of the bottom cover 23 facing the bottom plate 23 together define a channel 60. The groove is easy to process, and the split structure is used to define the way to set the channel 60, which is convenient for processing and easy to process a channel of an ideal shape, such as processing the first channel section 61, the second channel section 62 and the third channel section 63 mentioned above.

[0094] like Figure 4 , Figure 5 , Figure 12 to Figure 14 As shown, in one embodiment of the present disclosure, the lens assembly 10 has a first extreme position and a second extreme position in the X direction, and the lens assembly 10 is linked with the reversing member 70, so that when the lens assembly 10 moves from one of the first extreme position and the second extreme position toward the other, it can drive the reversing member 70 to move in the first channel section 61, thereby being able to reverse the direction of the cleaning liquid in the channel 60. That is, in this embodiment, the lens assembly 10 is linked with the reversing member 70, so that when the lens assembly 10 moves, the reversing member 70 can also move simultaneously, and the spraying of the cleaning liquid is timely controlled, and there is no need to separately set a driving structure to drive the reversing valve 500 to reverse, which is beneficial to improving the spraying efficiency of the cleaning liquid and simplifying the structure of the lens assembly 100.

[0095] In the present disclosure, there are many ways to realize the linkage between the reversing member 70 and the lens assembly 10. Figure 4 and Figure 5 As shown, the first protrusion 74 is provided on the reversing member 70, and the second protrusion 124 and the third protrusion 125 are provided on the lens assembly 10. The second protrusion 124 and the third protrusion 125 are located on both 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 that are arranged opposite to each other in the X direction. In the first extreme position, the second protrusion 124 abuts against one side of the first protrusion 74 in the X direction, and in the second extreme position, the third protrusion 125 abuts against the other side of the first protrusion 74 in the X direction. Based on this, when the lens assembly 10 moves in the X direction, the second protrusion 124 and the third protrusion 125 can cooperate with the first abutting surface of the first protrusion 74 respectively to drive the reversing member 70 to move, so as to reverse the direction of the cleaning liquid.

[0096] Optionally, in the first extreme position, the second opening 721 is exactly at the position connecting the hollow channel and the liquid inlet of the first nozzle 51, and the third opening 731 is exactly at the position connecting the hollow channel and the liquid inlet of the third nozzle 53. In the second extreme position, the second opening 721 is exactly at the position connecting the hollow channel and the liquid inlet of the second nozzle 52, and the third opening 731 is exactly at the position connecting the hollow channel and the liquid inlet of the fourth nozzle 54.

[0097] The present disclosure does not limit the specific structure of the base 20. Figure 6 As shown, in one embodiment of the present disclosure, the base 20 may include a bottom plate 22 and two L-shaped plates 25 arranged at both ends of the bottom plate 22 in the X direction, the L-shaped plate 25 includes a first portion 251 extending along the X direction and a second portion 252 extending along the Y direction, and the area between the two first portions 251 of the two L-shaped plates 25 is an open area 21.

[0098] Alternatively, if Figure 2 and Figure 3 As shown, the base 20 may further include a top cover 24, and the guide groove 241 is provided on the top cover 24. A through groove extending along the X direction is provided on the bottom plate 22, 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 and cooperate with the reversing member 70. Figure 2 and Figure 3 In the illustrated embodiment, 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 .

[0099] like Fig.17 As shown, in the present disclosure, the lens assembly 100 may also include a housing 80, the housing 80 has an open end, the open area 21 is located on the side where the open end is located, the lens assembly 10, the wiper 30 and the drive assembly 40 are all located inside the housing 80, and the housing 80 also includes a space for accommodating and installing an optical sensor (such as a 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 an integral part, and different camera devices can be obtained by replacing different cameras 200. Correspondingly, the lens assembly 100 can also be provided with a variety of mounting brackets to correspond to the installation of cameras 200 with different mounting structures.

[0100] According to another aspect of the present disclosure, a camera device is provided. The camera device includes a camera head 200 and the above-mentioned lens assembly 100 , and light passing through the lens 1) can be transmitted to the camera head 200 .

[0101] The camera 200 is disposed behind the lens 11 to capture the scene in front of the lens 11. Specifically, the camera 200 can be mounted on the base 20 and located in the housing 80 via a mounting bracket.

[0102] According to another aspect of the present disclosure, an unmanned vehicle is provided, which includes the above-mentioned camera device.

[0103] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0104] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0105] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A lens assembly, characterized in that: The invention comprises: a lens assembly (10), comprising a lens (11); a base (20), wherein an open area (21) for light transmission is provided on the base (20); a wiping piece (30), used for wiping the lens (11), wherein the wiping piece (30) is located at other parts of the base (20) outside the open area (21); a driving assembly (40), used for driving the lens assembly (10) to move on the base (20), so that the wiping piece (30) can wipe the lens (11) during the movement of the lens (11); wherein, during the process of the wiping piece (30) wiping the lens (11), the lens (11) covers the open area (21); the lens assembly (10) has a first extreme position and a second extreme position in the X direction; The lens assembly (10) is linked to the reversing member (70) so that when the lens assembly (10) moves from one of the first extreme position and the second extreme position toward the other, the reversing member (70) can be driven to move, thereby realizing the reversal of the cleaning liquid; the wiping member (30) comprises a first wiping member (31) and a second wiping member (32) arranged at intervals in the X direction, the open area (21) is located between the first wiping member (31) and the second wiping member (32) in the X direction, and the lens assembly (10) is configured to be driven by the driving assembly (40) The base (20) is capable of reciprocating in the X direction; a nozzle group is arranged on the base (20), and the nozzle group is used to spray cleaning liquid onto the lens (11); the nozzle group comprises a first nozzle (51), a second nozzle (52), a third nozzle (53) and a fourth nozzle (54); in the X direction, the first nozzle (51) and the second nozzle (52) are located on opposite sides of the first wiping member (31), the third nozzle (53) and the fourth nozzle (54) are located on opposite sides of the second wiping member (32), and the first nozzle (51), the second nozzle ( The lens assembly (100) further comprises a joint (90) and a channel (60) arranged on the base (20) for the cleaning liquid to pass through, the liquid inlet of the joint (90) being used to be connected to the cleaning liquid supply box (300), and the liquid outlet of the joint (90) being connected to the liquid inlet of the channel (60) so as to provide the cleaning liquid to the nozzle group; the reversing member (70) is arranged in the channel (60) so as to realize the channel (60) to supply the first nozzle (51) and the fourth nozzle (54) through the reversing member (70). The third nozzle (53) provides cleaning liquid, or provides cleaning liquid to the second nozzle (52) and the fourth nozzle (54), or cuts off the channel (60) from supplying cleaning liquid to the first nozzle (51), the second nozzle (52), the third nozzle (53) and the fourth nozzle (54); the lens assembly (100) also includes a bottom cover (23), the base (20) includes a bottom plate (22), the bottom surface of the bottom plate (22) is provided with a groove, and the groove and the surface of the bottom cover (23) facing the bottom plate (22) together define the channel (60).

2. The lens assembly according to claim 1, characterized in that: The lens assembly (10) comprises an outer frame (12) and the lens (11) embedded in the outer frame (12); a guide groove (241) extending in the X direction is provided on one of the base (20) and the outer frame (12), and a guide rail (121) for slidingly cooperating with the guide groove (241) is provided on the other of the base (20) and the outer frame (12).

3. The lens assembly according to claim 2, characterized in that: The driving assembly (40) comprises a motor (41) and a rocker arm (42), wherein a rotating shaft (411) of the motor (41) is arranged along the Y direction; a sleeve (421) is provided at one end of the rocker arm (42), wherein the sleeve (421) is sleeved and fixed on the rotating shaft (411), and a slider (422) is provided at the other end of the rocker arm (42); a slide groove (123) extending along the Z direction is provided on the outer frame (12), and the slider (422) is movably engaged in the slide groove (123), so that when the rocker arm (42) rotates with the rotating shaft (411), the slider (422) can drive the lens assembly (10) to move back and forth in the X direction.

4. The lens assembly according to claim 1, wherein: The nozzle group has a first working mode and a second working mode; in the first working mode, driven by the drive assembly (40), the center of the lens (11) in the X direction moves toward a direction close to the second wiping member (32), and the first nozzle (51) and the third nozzle (53) simultaneously spray cleaning liquid onto the lens (11); in the second working mode, driven by the drive assembly (40), the center of the lens (11) in the X direction moves toward a direction close to the first wiping member (31), and the second nozzle (52) and the fourth nozzle (54) simultaneously spray cleaning liquid onto the lens (11).

5. The lens assembly according to claim 1, wherein: The channel (60) comprises a first channel section (61) extending along the X direction, and a second channel section (62) and a third channel section (63) formed at opposite ends of the first channel section (61); a liquid inlet (511) of the first nozzle (51) and a liquid inlet (521) of the second nozzle (52) are located in the second channel section (62) and are arranged at intervals in the X direction; a liquid inlet (531) of the third nozzle (53) and a liquid inlet (541) of the fourth nozzle (54) are located in the third channel section (63) and are arranged at intervals in the X direction; the reversing member (70) is constructed as a rod-shaped member, comprising a first rod section (71) and a second rod section (72) and a third rod section (73) formed at 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 the outer wall of the first rod segment (71) contacts the inner wall of the first channel segment (61); the reversing member (70) has a hollow channel, the first rod segment (71) is provided with a first opening (711), the first opening (711) is used to connect the hollow channel with the liquid outlet of the joint (90); the second rod segment (72) is provided with a second opening (721) connected to the hollow channel, the second opening (721) is used to selectively connect with the liquid inlet (511) of the first nozzle (51) or the liquid inlet (521) of the second nozzle (52); the third rod segment (73) is provided with a third opening (731) connected to the hollow channel, the third opening (731) is used to selectively connect with the liquid inlet (531) of the third nozzle (53) or the liquid inlet (541) of the fourth nozzle (54).

6. The lens assembly according to claim 5, characterized in that: The reversing member (70) moves in the first channel section (61) to achieve reversal of the cleaning liquid.

7. The lens assembly according to claim 6, characterized in that: The reversing member (70) is provided with a first protrusion (74), and the lens assembly (10) is provided with a second protrusion (124) and a third protrusion (125); 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 extreme position, the second protrusion (124) abuts against one side of the first protrusion (74) in the X direction, and in the second extreme position, the third protrusion (125) abuts against the other side of the first protrusion (74) in the X direction.

8. The lens assembly according to claim 1, wherein: The base (20) comprises a bottom plate (22) and two L-shaped plates (25) arranged at two ends of the bottom plate (22) at intervals in the X direction; the L-shaped plate (25) comprises a first portion (251) extending along the X direction and a second portion (252) extending along the Y direction, and the area between the two first portions (251) is the open area (21).

9. The lens assembly according to any one of claims 1 to 3, characterized in that: The lens assembly (100) further comprises a housing (80), wherein the housing (80) has an open end, wherein the open area (21) is located on a side where the open end is located, wherein the lens assembly (10), the wiper (30) and the drive assembly (40) are all located inside the housing (80), and the housing (80) also has a space for accommodating an optical sensor.

10. A camera device, characterized in that: It comprises a camera (200) and a lens assembly (100) according to any one of claims 1 to 9, and light passing through the lens (11) can be transmitted to the camera (200).

11. An unmanned vehicle, characterized in that: The imaging device comprising the imaging device according to claim 10.

Images