Wiper spray device and camera

Abstract

The application relates to the technical field of equipment cleaning, in particular to a wiper spraying device and a camera. The wiper spraying device comprises a wiper, a non-end positioning assembly and a spraying assembly. The wiper is used for abutting against a window. The non-end positioning assembly is connected with the wiper. The non-end positioning assembly can control the wiper to reciprocatingly sweep the window along a first direction. The non-end positioning assembly can control the position of the wiper and the distance of the wiper along the window. The spraying assembly is fixed to the wiper. The spraying assembly has a plurality of liquid spraying holes for spraying, which are arranged along a second direction and cross the first direction along the window. The non-end positioning assembly and the spraying assembly fixed to the wiper can improve the cleaning effect of the wiper spraying device on the window.

Description

Technical Field

[0001] This application relates to the field of equipment cleaning technology, and in particular to wiper spray devices and cameras. Background Technology

[0002] With the widespread application of cameras in security monitoring, autonomous driving, and other fields, the need for cleaning the viewing window (lens or imaging window) is becoming increasingly prominent. If dust, water stains, or other contaminants adhere to the viewing window surface, it will cause image blurring and distortion, affecting image quality.

[0003] Traditional cleaning techniques use motor-driven wipers to scrape away dirt from the viewing window surface, with an additional spray system to apply cleaning fluid. However, this structure has significant shortcomings: firstly, the wipers can only scrape a fan-shaped area, leaving dirt residue on the edges or corners of the viewing window, resulting in inadequate cleaning; secondly, when the camera needs to be moved (such as in multi-angle monitoring scenarios), the fixed-position spray system cannot be aligned with the viewing window, preventing the cleaning fluid from being effectively sprayed and affecting the cleaning effect. Utility Model Content

[0004] Therefore, it is necessary to provide a wiper spray device and camera to address the problem of incomplete cleaning of the camera window.

[0005] This application provides a wiper spray device for cleaning the viewport of a camera. The wiper spray device includes: a wiper for contacting the viewport; a stepless positioning component connected to the wiper, the stepless positioning component being able to control the wiper to move back and forth along a first direction to sweep the viewport, the stepless positioning component being able to control the position of the wiper and the distance the wiper moves along the viewport; and a spray component fixed to the wiper, the spray component having a plurality of spray holes facing the viewport for spraying, the plurality of spray holes being spaced apart along a second direction, the second direction intersecting the first direction along the viewport.

[0006] This application incorporates a stepless positioning component and a spray component fixed to the wiper. The stepless positioning component controls the position of the wiper and the distance it moves along the window. The spray component, fixed to the wiper, follows the wiper's movement and sprays liquid in a timely manner. Therefore, during cleaning, the wiper can clean the entire window and can repeatedly clean the area if stains are not completely removed. The spray component sprays liquid onto the window through multiple nozzles, thereby improving the cleaning effect of the wiper spray system on the window.

[0007] In some embodiments, the stepless positioning component includes a guide, a connector, and a drive; the guide is positioned at the camera and extends along a first direction; the connector is disposed on the guide and is movable along the guide, and the connector is connected to the wiper; the drive is disposed on the guide and connected to the connector, and is used to drive the connector to move along the guide, thereby causing the wiper to translate along the viewing window in the first direction.

[0008] In some embodiments, the guide includes a guide rod and at least one seat. The guide rod extends along a first direction, and the seat is disposed at the end of the guide rod along the first direction. The guide rod is mounted to the camera via the seat, and a connector is sleeved on the guide rod and is movable along the guide rod.

[0009] In some embodiments, the base includes a lead screw and nut seat, the drive component includes a motor lead screw, and the connecting component includes a push plate and a nut disposed on the push plate, with the motor lead screw threadedly connected to the nut; wherein, the motor lead screw can drive the push plate to reciprocate along the guide rod, and the position and translation distance of the wiper can be controlled by controlling the position and rotation amount of the motor lead screw.

[0010] In some embodiments, the angle between the axis of the spray nozzle and the viewing window is c, where 100° ≥ c ≥ 80°.

[0011] In some embodiments, the spacing between the spray nozzles is h, where 10 mm ≥ h ≥ 8 mm; and / or, the diameter of the spray nozzles is d, where 1 mm ≥ d ≥ 0.5 mm.

[0012] In some embodiments, the wiper spray device further includes a liquid storage component, which is connected to the spray component via a pipeline and is used to supply liquid to the spray component.

[0013] This application also provides the following technical solutions:

[0014] The camera includes: a viewing window; and a windshield washer spray device as described in any of the above embodiments.

[0015] In some implementations, the camera also includes a front cover and a housing, the front cover and the housing being detachably connected, with a viewing window disposed on the front cover.

[0016] In some embodiments, the camera further includes a sealing housing located within a cavity formed by the housing and the front cover, and sealed to the front cover. The sealing housing and the front cover form an accommodating cavity, and the stepless positioning component of the wiper spray device is disposed within the accommodating cavity.

[0017] The wiper spray system is equipped with a stepless positioning component and a spray component fixed to the wiper. Since the stepless positioning component can control the position of the wiper and the distance the wiper moves along the window, and the spray component is fixed to the wiper, it can follow the movement of the wiper and spray liquid in time when the wiper is cleaning the window, so during the cleaning process, the wiper can clean the entire window, and can repeatedly clean the same area if there are still stains. The spray component sprays liquid on the window in time through multiple spray holes, thereby improving the cleaning effect of the wiper spray system on the window. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the camera provided in this application.

[0019] Figure 2 An exploded view of the camera provided in this application.

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0021] Figure 4 This is a schematic diagram of the stepless positioning component provided in this application.

[0022] Figure 5 This is a partial structural diagram of the spray assembly provided in this application.

[0023] Explanation of reference numerals in the attached figures:

[0024] 100. Wiper spray system; 10. Wiper; 20. Infinitely variable positioning assembly; 21. Guide component; 211. Guide rod; 212. Base; 2121. Lead screw and nut seat; 22. Connector; 221. Push plate; 222. Nut; 23. Drive component; 231. Motor lead screw; 30. Spray assembly; 31. Spray nozzle; 40. Liquid storage assembly; 41. Piping;

[0025] 200. Camera; 201. Viewing window; 202. Front cover; 2021. Elongated hole; 203. Housing; 204. Chamber; 205. Camera assembly; 206. Sealing shell; 207. Receiving cavity. Detailed Implementation

[0026] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0027] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0028] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0029] Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this application, unless otherwise expressly specified and limited, the terms "connected," "linked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; a flexible connection or a rigid connection along at least one direction; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium, or a direct connection with an intermediate medium present; and they can also refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. The terms "installed," "set," "fixed," etc., can be broadly understood as connection. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0031] Please see Figures 1 to 5 This application provides a wiper spray device 100 for cleaning the viewing window 201 of a camera 200. The viewing window 201 can be planar and generally has a rectangular or rounded rectangular shape. The camera 200 may have multiple viewing windows 201 side by side. The camera 200 also includes a front cover 202, a housing 203, and a camera assembly 205. The viewing window 201 is disposed on the front cover 202, and the front cover 202 and the housing 203 enclose a cavity 204, in which the camera assembly 205 is disposed.

[0032] For example, the wiper spray device 100 includes a wiper 10, a stepless positioning component 20, and a spray component 30. The wiper 10 is used to abut against the window 201, the stepless positioning component 20 is connected to the wiper 10, and the spray component 30 is fixed to the wiper 10.

[0033] The wiper 10 may press against the viewing window 201 generally vertically along the xy plane. Optionally, the wiper 10 may include a blade or slat that may have a tilting angle along the first direction y. The wiper 10 may extend, for example, along a second direction x. The second direction x intersects the first direction y along the viewing window 201, for example, the two directions are perpendicular.

[0034] The stepless positioning component 20 can control the wiper 10 to reciprocate along the first direction y to sweep the viewing window 201. The stepless positioning component 20 can control the position of the wiper 10 and the distance the wiper 10 moves along the viewing window 201. The stepless positioning component 20 can control the wiper 10 to reciprocate at its maximum stroke, and can also reciprocate between any two positions within the maximum stroke.

[0035] The spray assembly 30 has a plurality of spray holes 31 for spraying, which are disposed toward the viewing window 201 and spaced apart along a second direction x. The spray assembly 30 is fixed to the wiper 10 so that it can translate with the wiper 10. In some embodiments, the spray assembly 30 is adjustable relative to the wiper 10. Optionally, the spray holes 31 may be formed on the side wall of the infusion tube; the spray holes 31 may also be adjustable.

[0036] In this embodiment, a stepless positioning component 20 and a spray component 30 fixed to the wiper 10 are provided. Since the stepless positioning component 20 can control the position of the wiper 10 and the distance the wiper 10 moves along the viewing window 201, and the spray component 30 is fixed to the wiper 10, it can follow the movement of the wiper 10 and spray liquid in time when the wiper 10 cleans the viewing window 201. Therefore, during the cleaning process, the wiper 10 can clean the entire viewing window 201, and can repeatedly clean the position if the dirt is not completely removed. The spray component 30 sprays liquid on the viewing window 201 in time through multiple spray holes 31, thereby improving the cleaning effect of the wiper spray device 100 on the viewing window 201.

[0037] like Figure 3 and Figure 4 As shown, the stepless positioning assembly 20 includes a guide member 21, a connector 22, and a drive member 23. The guide member 21 is positioned relative to the camera 200 and extends along a first direction y. The connector 22 is disposed on the guide member 21 and is movable along the guide member 21, and is connected to the wiper 10. The drive member 23 is disposed on the guide member 21 and connected to the connector 22, and is used to drive the connector 22 to move along the guide member 21, thereby causing the wiper 10 to translate along the viewing window 201 in the first direction y. Here, the guide member 21 can be a guide rail, a guide groove, or a guide rod 211, etc.

[0038] In one embodiment, the guide member 21 includes a guide rod 211 and at least one seat 212. The guide rod 211 extends along a first direction y, and the seat 212 is correspondingly disposed at the end of the guide rod 211 along the first direction y. The guide rod 211 is mounted on the camera 200 through the seat 212. The connector 22 is sleeved on the guide rod 211 and can move along the guide rod 211.

[0039] The base 212 may include a lead screw nut seat 2121, the drive component 23 includes a motor lead screw 231, and the connecting component 22 includes a push plate 221 and a nut 222 disposed on the push plate 221. The motor lead screw 231 is threadedly connected to the nut 222. The motor lead screw 231 can drive the push plate 221 to reciprocate along the guide rod 211, and the position and rotation amount of the motor lead screw 231 can be controlled to control the position and translation distance of the wiper 10. Thus, by controlling the rotation amount of the motor lead screw 231, the relative position of the nut 222 can be controlled, enabling the wiper 10 to perform fixed-point, stepless movement for targeted cleaning of the viewing window 201, thereby improving the cleaning ability of the wiper 10 on the viewing window 201.

[0040] The connector 22 is matched with the drive component 23; other mating structures that enable the connector 22 to achieve controllable displacement can also be used, such as a motor push rod and push rod push plate, a geared motor and a rack and pinion slider.

[0041] In this embodiment, two guide rods 211 are configured, and the two guide rods 211 are of equal length and arranged in parallel. Two lead screw nut seats 2121 are also configured, and are respectively disposed at both ends of the two guide rods 211. Each lead screw nut seat 2121 is connected to both guide rods 211, and each lead screw nut seat 2121 is also threadedly connected to the camera 200 to confine the two guide rods 211 within the camera 200. By setting two guide rods 211 and two lead screw nut seats 2121, when the electrode lead screw pushes the push plate 221, the two guide plates can better position the push plate 221, preventing the push plate 221 from shifting, thus making the operation of the stepless positioning assembly 20 more stable.

[0042] refer to Figure 5 The angle between the axis of the spray nozzle 31 and the viewing window 201 is c, where 100° ≥ c ≥ 80°. For example, c = 80°, c = 85°, c = 90°, c = 100°, etc. can be selected. When the spray nozzle 31 ejects a liquid column, due to its close proximity to the viewing window 201, the influence of gravity on it can be ignored. Therefore, the central axis of the liquid column can be considered to coincide with the axis of the spray nozzle 31. When the gravity on the ejected liquid column needs to be considered, this angle range is beneficial for ensuring the angle between the central axis of the liquid column and the viewing window 201. By making the liquid column ejected basically perpendicular to the viewing window 201, the influence of wind and gravity on the liquid flow can be reduced, allowing the viewing window 201 to receive a larger volume of liquid.

[0043] For example, the spacing between the spray holes 31 is h, where 10mm ≥ h ≥ 8mm, and the diameter of the spray holes 31 is d, where 1mm ≥ d ≥ 0.5mm. For instance, h can be h = 8mm, h = 9mm, h = 10mm, etc., and d can be d = 1mm, d = 0.8mm, d = 0.6mm, d = 0.5mm, etc. By limiting the spacing and diameter of the spray holes 31, the liquid sprayed from the spray holes 31 can more evenly cover the area of ​​the viewing window 201 that needs cleaning, improving the utilization rate of the liquid sprayed from the spray assembly 30. Here, the number of spray holes is set to multiple, such as 4, 6, 8, 10, 12, etc.

[0044] In one embodiment, the wiper spray device 100 further includes a liquid storage component 40 mounted on the camera 200. The liquid storage component 40 is connected to the spray component 30 via a pipe 41 and is used to supply liquid to the spray component 30.

[0045] In this embodiment, the liquid storage assembly 40 includes a liquid pump and a liquid tank. The liquid tank is used to store liquid, such as water, and the liquid pump is used to pressurize the water in the liquid tank into the spray assembly 30 through the pipe 41 and spray the water out from the spray hole 31. The liquid storage assembly 40 can be disposed outside the camera 200. At least a portion of the pipe 41 is a flexible pipe or a movable connecting structure.

[0046] like Figure 1 and Figure 2 As shown, this application also provides a camera 200, which may include a window 201 and a windshield washer spray device 100 as described in any of the above embodiments.

[0047] In one embodiment, the front cover 202 is detachably connected to the housing 203. Thus, when installing or maintaining the wiper 10 and the stepless positioning assembly 20, only the front cover 202 needs to be removed for repair, making it more convenient for future maintenance of the wiper 10 and the stepless positioning assembly 20.

[0048] like Figure 2 and Figure 3 As shown, the camera 200 also includes a sealing shell 206, which is located within the chamber 204 and is sealed to the front cover 202. The sealing shell 206 and the front cover 202 together form a receiving cavity 207, in which the stepless positioning component 20 of the wiper spray device 100 is disposed. This design separates the stepless positioning component 20 from the internal structure of the camera 200, ensuring the airtightness of the camera 200.

[0049] In this embodiment, the front cover 202 has an elongated hole 2021 extending along the first direction y. The accommodating cavity 207 communicates with the outside through the elongated hole 2021. The wiper 10 can pass through the elongated hole 2021 and connect with the push plate 221 in the accommodating cavity 207. As the push plate 221 moves, the wiper 10 can move along the first direction y in the elongated hole 2021.

[0050] The technical features of the above-disclosed embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] In the embodiments disclosed above, unless otherwise explicitly specified and limited, the execution order of each step is not restricted. For example, they can be executed in parallel or sequentially in different orders. The sub-steps of each step can also be executed alternately. Various forms of processes described above can be used, and steps can be reordered, added, or deleted, as long as the desired result of the technical solution provided in this application can be achieved, and this application does not impose any restrictions here.

[0052] The embodiments disclosed above merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of patent protection of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of patent protection claimed by this application. Therefore, the scope of patent protection of this application should be determined by the appended claims.

Claims

1. A wiper spray device for cleaning the viewing window (201) of a camera (200), characterized in that, The wiper spray device (100) includes: A windshield wiper (10) is used to abut the window (201); A stepless positioning component (20), connected to the wiper (10), is capable of controlling the wiper (10) to reciprocately sweep across the viewing window (201) along a first direction. The stepless positioning component (20) is also capable of controlling the position of the wiper (10) and the distance the wiper (10) moves along the viewing window (201). A spray assembly (30) is fixed to the wiper (10). The spray assembly (30) has a plurality of spray holes (31) for spraying that are disposed toward the window (201). The plurality of spray holes (31) are spaced apart along a second direction that intersects the first direction along the window (201).

2. The wiper spray device according to claim 1, characterized in that, The infinite positioning component (20) includes a guide (21), a connector (22), and a drive (23); The guide (21) is positioned within the camera (200) and extends along the first direction; The connector (22) is disposed on the guide (21) and is movable along the guide (21), and the connector (22) is connected to the wiper (10); The drive member (23) is disposed on the guide member (21) and connected to the connector (22) for driving the connector (22) to move along the guide member (21) so as to drive the wiper (10) to translate along the window (201) in a first direction.

3. The wiper spray device according to claim 2, characterized in that, The guide member (21) includes a guide rod (211) and at least one seat (212). The guide rod (211) extends along a first direction, and the seat (212) is correspondingly disposed at the end of the guide rod (211) along the first direction. The guide rod (211) is mounted on the camera (200) through the seat (212). The connector (22) is sleeved on the guide rod (211) and can move along the guide rod (211).

4. The wiper spray device according to claim 3, characterized in that, The base (212) includes a lead screw nut seat (2121), the drive member (23) includes a motor lead screw (231), the connector (22) includes a push plate (221) and a nut (222) disposed on the push plate (221), and the motor lead screw (231) is threadedly connected to the nut (222). The motor lead screw (231) can drive the push plate (221) to reciprocate along the guide rod (211), and the position and translation distance of the wiper (10) can be controlled by controlling the position and rotation amount of the motor lead screw (231).

5. The wiper spray device according to claim 1, characterized in that, The angle between the axis of the spray hole (31) and the viewing window (201) is c, where 100°≥c≥80°.

6. The wiper spray device according to claim 1, characterized in that, The spacing between the spray holes (31) is h, 10mm≥h≥8mm; And / or, the diameter of the spray hole (31) is d, 1mm≥d≥0.5mm.

7. The wiper spray device according to claim 1, characterized in that, The wiper spray device (100) also includes a liquid storage component (40), which is connected to the spray component (30) through a pipeline (41) and is used to supply liquid to the spray component (30).

8. A camera, characterized in that, include: Window (201); as well as The wiper spray device (100) as described in any one of claims 1 to 7.

9. The camera according to claim 8, characterized in that, The camera (200) also includes a front cover (202) and a housing (203), the front cover (202) and the housing (203) being detachably connected, and the viewing window (201) being disposed on the front cover (202).

10. The camera according to claim 9, characterized in that, The camera (200) also includes a sealing shell (206), which is located in the cavity (204) formed by the housing (203) and the front cover (202) and is sealed to the front cover (202). The sealing shell (206) and the front cover (202) form a receiving cavity (207), and the stepless positioning component (20) of the wiper spray device (100) is disposed in the receiving cavity (207).

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