Camera assembly
By placing a conductive component between the lens and the housing, the problem of static electricity not being able to be discharged quickly is solved, enabling rapid transmission and discharge of static electricity, preventing damage to PCB board components, and improving the reliability of the camera assembly.
Patent Information
- Application Number
- CN202520029527.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-01-06
AI Technical Summary
In existing CMS cameras, static electricity cannot be quickly discharged from the PCB board, leading to device damage.
A conductive component is placed between the lens and the housing, allowing static electricity to be quickly transferred to the housing and eventually discharged to the ground, thus preventing the accumulation of static electricity on the PCB board.
This effectively prevents damage to components on the PCB board due to static electricity buildup, thus improving the reliability of the camera assembly.
Smart Images
Figure CN223744793U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of camera, in particular to a camera assembly. BACKGROUND
[0002] The CMS camera, also known as electronic outside rearview mirror or camera monitoring system, is a camera that captures the field of view in front, side or rear of the vehicle, processes, transmits and displays the image on the display in the vehicle according to the appropriate scale, so as to facilitate the driver to judge the surrounding road conditions by observing the display directly.
[0003] In the prior art, a general CMS camera includes a lens, a pressing ring, a face shell, and an FPC heating wire. The lens and the pressing ring are generally made of metal material, and the lens and the face shell are connected by insulating glue. When the camera is tested for static electricity, static electricity is transmitted from the lens to the PCB board through the FPC heating wire. Since static electricity cannot be quickly discharged from the PCB board, the static electricity accumulated on the PCB board is too large, thereby causing damage to the devices on the PCB board. CONTENT OF THE UTILITY MODEL
[0004] Therefore, the present application provides a camera assembly which can avoid damage to the devices on the PCB board.
[0005] The present application provides a camera assembly, which comprises a shell, a lens mounted on the shell, and a conductive piece arranged between the lens and the shell; the lens comprises a pressing ring, one end of the conductive piece abuts against the pressing ring, and the other end of the conductive piece abuts against the shell, so that the lens is in conductive communication with the shell through the conductive piece.
[0006] Further, the conductive piece comprises a main body, and first and second connecting ends arranged at both ends of the main body, the pressing ring abuts against the first connecting end, and the shell abuts against the second connecting end.
[0007] Further, the shell comprises an assembly hole and a groove surrounding the assembly hole; the lens is nested in the assembly hole, and the main body is embedded into the groove, so that the first connecting end abuts against the groove.
[0008] Further, the lens comprises a lens barrel connected with the pressing ring, the pressing ring and the lens barrel constitute a clamping groove, and the clamping groove is used for clamping the second connecting end.
[0009] Further, the conductive piece is integrated, and the conductive piece abuts against the side end of the shell and the pressing ring respectively.
[0010] Further, the electrically conductive member has a resistivity less than 50 ohms.
[0011] Further, the electrically conductive member is a conductive silica gel sleeve.
[0012] Further, the lens is provided with an insulating layer, and the contact area between the compression ring and the electrically conductive member is removed of the insulating layer by laser engraving to form a first conductive area.
[0013] Further, the shell is provided with an insulating layer, and the contact area between the recess and the electrically conductive member is removed of the insulating layer by laser engraving to form a second conductive area.
[0014] Further, when the lens generates static electricity, the static electricity is transmitted to the electrically conductive member through the first conductive area and to the shell through the second conductive area.
[0015] The camera assembly described above can reduce the accumulation of static electricity on the PCB by setting the electrically conductive member between the shell and the lens, so as to prevent the devices on the PCB from being damaged. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0017] Figure 1 The structural schematic diagram of the camera provided by the embodiment of the present application.
[0018] Figure 2 The exploded schematic diagram of the camera provided by the first embodiment of the present application.
[0019] Figure 3 The cross-sectional schematic diagram of the camera provided by the first embodiment of the present application.
[0020] Figure 4 The structural schematic diagram of the lens provided by the first embodiment of the present application.
[0021] Figure 5 The structural schematic diagram of the electrically conductive member provided by the first embodiment of the present application.
[0022] Figure 6 The structural schematic diagram of the shell provided by the first embodiment of the present application.
[0023] Figure 7 The cross-sectional schematic diagram of the camera provided by the second embodiment of the present application.
[0024] Component symbol explanation:
[0025]
[0026] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Specific Implementation
[0028] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this application.
[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or the number of technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0031] To provide a clearer and more accurate understanding of the contents of this application, a detailed description will now be provided in conjunction with the accompanying drawings. The accompanying drawings illustrate examples of embodiments of this application, wherein the same reference numerals denote the same elements. It is to be understood that the scale shown in the accompanying drawings is not the actual scale of this application, and is for illustrative purposes only, and is not a drawing based on the original dimensions.
[0032] Please refer to Figure 1This application provides a camera 100. The camera 100 includes a lens 20, a housing 22, and a conductive element 21. The lens 20 and housing 22 are disposed opposite each other. The conductive element 21 is disposed between the lens 20 and housing 22 and nested within the housing 22, such that the conductive element 21 abuts against both the lens 20 and housing 22, thereby electrically connecting the lens 20 to the housing 22 through the conductive element 21. The conductive element 21 is used to transfer static electricity from the lens 20 to the housing 22. The camera assembly 100 also includes an FPC heating wire 13, a PCB board 12, and a wiring harness 16. The FPC heating wire 13 is electrically connected to the lens 20 and the PCB board 12, respectively. The PCB board 12 is connected to ground through the wiring harness 16.
[0033] Please refer to Figure 4 The lens 20 includes a retaining ring 110 and a lens barrel 111. The retaining ring 110 is disposed above the lens barrel 111 and is insulated from it. In the first embodiment, the lens barrel 111 includes a body 114 and a protrusion 112 extending around the body 114. The protrusion 112, the retaining ring 110, and the body 114 together form a slot 113. The slot 113 is used to connect the conductive component 21. When the lens 20 undergoes an electrostatic test, the static electricity on the retaining ring 110 can be quickly transferred through the camera assembly 20 to the PCB board 12 and then to ground, thereby preventing damage to the components on the PCB board 12 due to static electricity accumulation.
[0034] Please refer to Figure 5 The conductive component 21 is made of a conductive material with a resistivity of less than 50 ohms, such as conductive plastic, conductive silicone, and conductive rubber. A conductive silicone sleeve is preferred. In the first embodiment, the conductive component 21 includes a main body 210, a first connecting end 211, a second connecting end 212, and a through hole 213. The main body 210 surrounds the through hole 213. The first connecting end 211 and the second connecting end 212 are disposed at both ends of the main body 210, with the second connecting end 212 extending relative to the main body 210 towards the through hole 213. The first connecting end 211 is used to connect to the housing 22, enabling conductive communication between the conductive component 21 and the housing 22. The second connecting end 212 is used to connect to the pressure ring 110, enabling conductive communication between the pressure ring 110 and the conductive component 21. Specifically, the second connecting end 212 is embedded in the slot 113, such that the side of the second connecting end 212 facing the pressure ring 110 abuts against the pressure ring 110. Furthermore, the insulating layer at the contact area between the second connection end 212 and the pressure ring 110 is removed by laser engraving to form a second conductive area 23. When the lens 20 undergoes an electrostatic test, the static electricity on the lens 20 is transferred to the conductive element 21 through the second conductive area 23 between the conductive element 21 and the pressure ring 110.
[0035] Since the conductive element 21 is in direct 360° contact with the pressure ring through the second connection end 212, static electricity can be quickly transferred from the pressure ring 110 to the conductive element 21 when testing static electricity at any position on the lens 20. The second conductive area 23 is used to make the pressure ring 110 and the conductive element 21 electrically connected. When the pressure ring 110 is insulated from the lens barrel 111, this application allows direct electrical connection between the pressure ring 110 and the conductive element 21, without first making the pressure ring 110 and lens barrel 111 electrically connected, and then making the lens barrel 111 and the conductive element 21 electrically connected. This shortens the static electricity transmission path, thereby optimizing the static electricity test of the lens 20 and saving the cost of making the pressure ring 110 and lens barrel 111 electrically connected.
[0036] Please refer to Figure 6 The housing 22 is made of conductive material and has an insulating layer. The housing 22 includes a base 226, a mounting hole 220, and a groove 221. The base 226 has an internal space 227. The groove 221 and the mounting hole 220 are located on the side of the base 226 facing the conductive element 21. The groove 221 surrounds the mounting hole 220, which corresponds to the through hole 213. The lens barrel 111 passes through the through hole 213 and the mounting hole 220 in sequence, thus fixing the lens 20 to the housing 22. The groove 221 includes a groove bottom 224, an outer groove wall 222, and an inner groove wall 223. The outer groove wall 222 is located away from the mounting hole 220, and the inner groove wall 223 is located near the mounting hole 220. The inner groove wall 223 is a thick cylindrical shape, used to provide a support surface 225 for the protrusion 112 of the lens barrel 111. The main body 210 is embedded into the groove 221, such that the first connecting end 211 abuts against the bottom 224 of the groove 221. Further, the insulating layer in the contact area between the first connecting end 211 and the bottom 224 is removed by laser engraving to form a first conductive area 24. The PCB board 12 is disposed in the internal space 227 and abuts against the base 226. Further, the insulating layer in the contact area between the PCB board 12 and the base 226 is removed by laser engraving, making the PCB board 12 electrically connected to the housing 22.
[0037] When static electricity is transferred to the conductive component 21, it is then transmitted to the housing 22 via the first conductive area 24 between the conductive component 21 and the housing 22, then to the PCB board 12 via the contact area between the housing 22 and the PCB board 12, and finally to the ground via the wire harness 16, forming the first path 14 of static electricity transmission. The first conductive area 24 is used to make the housing 22 and the conductive component 21 electrically connected. In the above, this application embeds the main body 210 into the groove 221 and abuts the first connecting end 211 against the bottom 224 of the groove, so that the conductive component 21 and the housing 22 are electrically connected and the conductive component 21 and the housing 22 are fixed together.
[0038] Please refer to Figure 7The second embodiment of this application provides a camera 100. The camera assembly 20 provided in the second embodiment differs from the camera assembly 20 provided in the first embodiment in the structure of the lens 20, the structure of the conductive element 21, and the connection method between the conductive element 21 and the lens 20. Specifically, the lens 20 includes a retaining ring 110 and a lens barrel 111 connected to the retaining ring 110, but does not have a slot 113. The conductive element 21 is integrally formed, and it abuts against the side ends of the retaining ring 110 and the housing 22, respectively. In some feasible embodiments, the conductive element 21 includes a first conductive portion 25 and a second conductive portion 26. One of the first conductive portion 25 and the second conductive portion 26 abuts against the side of the retaining ring 110 away from the through hole 213, and the other abuts against the housing 22. The conductive element 21 is an annular cylinder. When the retaining ring 110 is subjected to electrostatic testing, static electricity is transmitted along the second path 15. Specifically, the static electricity on the pressure ring 110 is transferred to the second conductive part 26 through the first conductive part 25, and then to the housing 22 through the contact portion between the second conductive part 26 and the housing 22.
[0039] In the above embodiments, by providing a conductive element 21 between the pressure ring 110 and the housing 22, the static electricity on the pressure ring 110 can be directly transferred to the housing 22 through the conductive element 21, then transferred from the housing 22 to the PCB board 12, and finally transferred to the ground, thus protecting the devices on the PCB board 12 from damage.
[0040] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.
[0041] The above-listed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Therefore, any equivalent variations made in accordance with the claims of this application shall still fall within the scope of this application.
Claims
1. A camera assembly, comprising: The camera assembly comprises a shell, a lens mounted on the shell, and a conductive piece arranged between the lens and the shell; the lens comprises a pressing ring, one end of the conductive piece abuts against the pressing ring, and the other end of the conductive piece abuts against the shell, so that the lens is in conductive communication with the shell through the conductive piece.
2. The camera assembly of claim 1, wherein, The conductive piece comprises a main body, and first and second connecting ends arranged at two ends of the main body; the pressing ring abuts against the first connecting end, and the shell abuts against the second connecting end.
3. The camera assembly of claim 1, wherein, The shell comprises an assembly hole and a groove surrounding the assembly hole; the lens is nested in the assembly hole, and the conductive piece is embedded in the groove and abuts against the groove.
4. The camera assembly of claim 2, wherein, The lens comprises a lens barrel connected with the pressing ring; the pressing ring and the lens barrel constitute a clamping groove for clamping the second connecting end.
5. The camera assembly of claim 1, wherein, The conductive piece is integrated, and the conductive piece abuts against the side end of the shell and the pressing ring respectively.
6. The camera assembly of claim 1, wherein, The resistivity of the conductive piece is less than 50 ohms.
7. The camera assembly of claim 6, wherein, The conductive piece is a conductive silica gel sleeve.
8. The camera assembly of claim 3, wherein, The lens is provided with an insulating layer; the contact area of the pressing ring and the conductive piece is free of the insulating layer through laser engraving, forming a first conductive area.
9. The camera assembly of claim 8, wherein, The shell is provided with an insulating layer; the contact area of the groove and the conductive piece is free of the insulating layer through laser engraving, forming a second conductive area.
10. The camera assembly of any of claims 8-9, wherein, When the lens generates static electricity, the static electricity is transmitted to the conductive piece through the first conductive area, and is transmitted to the shell through the second conductive area.