Vehicle-mounted camera module and vehicle thereof
By using barriers in vehicle-mounted camera modules for electrostatic conduction, the problems of low electrostatic conduction efficiency and high cost in the prior art are solved, more efficient electrostatic conduction and lower production costs are achieved, and the function of the module is ensured. Safety.
Patent Information
- Application Number
- CN202420981814.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-05-07
AI Technical Summary
The existing vehicle-mounted camera module with heating function cannot effectively conduct static electricity during ESD electrostatic test, resulting in abnormal functions, and the electrostatic conduction process of point-conducting glue method is complex, costly and low production efficiency.
The barrier member is used for electrostatic conduction. The barrier member includes a socket and a plurality of elastic fasteners. It is in close contact with the first conductive region of the lens gland through the socket, and the second conductive member is connected to the metal rear case through the elastic fastener. The zone is in close contact to realize the electrical connection between the lens gland and the metal rear case.
It improves the production efficiency of static electricity transmission, reduces costs, ensures the functional safety of the camera module, and avoids functional abnormalities caused by static electricity.
Smart Images
Figure CN222509399U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicle-mounted cameras, and in particular to a vehicle-mounted camera module and a vehicle thereof. Background Art
[0002] With the diversification of vehicle-mounted camera modules in the market, camera modules with heating functions have gradually been in demand by customers. There are two main forms of existing camera modules with heating functions: one is that the lens directly has a heating function; the other is to add a heating device to the outside of the lens. Among them, for camera modules with direct lens heating functions, the lens is generally composed of a lens cover, a heating wire, a lens, a heating wire cover, and a lens barrel.
[0003] However, the surfaces of the lens cover, heating wire cover, and lens barrel are generally anodized, and effective static electricity transfer cannot be performed during ESD electrostatic testing. Static electricity will be directly conducted to the circuit board through the heating wire, causing abnormal function of the vehicle camera module. The vehicle camera module usually uses the method of applying conductive glue to the lens for ESD electrostatic conduction, that is, the heated lens requires applying conductive glue to the lens cover and the lens barrel, and to the lens barrel and the metal lens seat. However, the use of conductive glue to conduct ESD electrostatic conduction is more complicated and costly. On the other hand, the conductive glue needs to be baked at 80°C for 1 hour for curing, which has low production efficiency. Utility Model Content
[0004] In view of this, the present application provides a vehicle-mounted camera module and a vehicle thereof that improves the production efficiency of electrostatic transfer and has low cost.
[0005] In a first aspect, the present application provides a vehicle-mounted camera module, comprising a lens and a lens holder for fixing the lens, wherein the lens comprises a lens barrel and an optical lens assembly fixed in the lens barrel, wherein a lens pressure cover and a heating wire pressure cover are sequentially sleeved on the outside of the lens barrel from away from the lens holder to the lens holder; a first conductive area is provided on the end surface of the lens pressure cover facing away from the heating wire pressure cover; the vehicle-mounted camera module also comprises a metal back shell for fixing the lens holder, and a barrier connected between the lens pressure cover and the metal back shell; the metal back shell is provided with a second conductive area; the barrier comprises a sleeve and a plurality of elastic fasteners extending from the sleeve; the sleeve is sleeved on the lens and is in close contact with the first conductive area, and the plurality of elastic fasteners are located on the outside of the lens and extend toward the lens holder and are in close contact with the second conductive area; wherein the barrier is fastened to the lens holder through the plurality of elastic fasteners; the barrier is in close contact with the first conductive area and the second conductive area so that the lens pressure cover and the metal back shell are electrically connected through the barrier.
[0006] Furthermore, the sleeve member is provided with an opening, and the sleeve member is sleeved on the lens through the opening and is located at the end surface of the lens cover provided with the first conductive area.
[0007] Furthermore, an elastic claw is provided at the end of the elastic fastening member, and the elastic claw is provided with a rebound portion protruding outward. The elastic fastening member is fastened to the mirror seat by the elastic claw and is fixed between the mirror seat and the metal back shell, so that the barrier member is fixed, and the rebound portion is deformed and in close contact with the second conductive area.
[0008] Furthermore, the plurality of elastic fastening members extend from the edge of the sleeve at equal intervals.
[0009] Furthermore, the elastic fastener also includes a base and a first connecting portion and a second connecting portion extending from the base to both sides, the first connecting portion and the second connecting portion respectively form a certain angle with the base; the first connecting portion is connected to the sleeve and the inward end surface is in contact with the lens pressure cover, and the second connecting portion is connected to the elastic clamp and is located between the metal rear shell and the lens holder.
[0010] Furthermore, a receiving portion is provided at the end of the elastic clamping claw and extends inwardly, and the receiving portion is pressed against the mirror seat near the end surface of the sleeve so that the blocking member is buckled on the mirror seat; wherein the receiving portion is parallel to the sleeve.
[0011] Furthermore, the surfaces of the lens cover and the metal back shell are both insulating layers, and the first conductive area and the second conductive area of the lens cover and the metal back shell that contact the barrier are laser engraved to break the insulating layer, so that the lens cover is electrically connected to the metal back shell through the barrier.
[0012] Furthermore, the metal rear shell is grounded.
[0013] Furthermore, the barrier is made of nickel silver.
[0014] In a second aspect, the present application provides a vehicle, including a vehicle body and a vehicle-mounted camera module arranged on the vehicle body.
[0015] The above-mentioned vehicle-mounted camera module and the vehicle thereof use a barrier to conduct static electricity. Specifically, the barrier includes a sleeve and a plurality of elastic fasteners extending from the sleeve. The barrier is mounted on the lens through the sleeve and fastened to the lens holder through a plurality of elastic fasteners. The barrier is easy to install, which improves the production efficiency of the camera module. The barrier is in close contact with the first conductive area on the lens gland through the sleeve, and in close contact with the second conductive area on the metal rear shell through the elastic fastener, so that the lens gland and the metal rear shell are electrically connected through the barrier, and then the static electricity is conducted from the lens gland to the metal rear shell to eliminate the static electricity, thereby ensuring the functional safety of the camera module. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.
[0017] Figure 1 It is a front view schematic diagram of the semi-finished vehicle camera module provided in this embodiment.
[0018] Figure 2 1 is a top view schematic diagram of a semi-finished vehicle camera module provided in this embodiment.
[0019] Figure 3 Schematic diagram of the structure of the barrier provided in this embodiment.
[0020] Figure 4 Schematic diagram of the structure of the vehicle provided in this embodiment.
[0021] The numbers in the figure are as follows:
[0022] Car camera module 100 lens 1
[0023] Lens barrel 11 Optical lens assembly 12
[0024] Mirror seat 2 Lens cover 3
[0025] First conductive area 31 Heating wire cover 4
[0026] Metal rear shell 5 Second conductive area 51
[0027] Barrier 6 Socket 61
[0028] Opening 611 Elastic fastening member 62
[0029] Base 621 First connection portion 622
[0030] Second connecting portion 623 Elastic clamping claw 624
[0031] Rebound portion 6241 Receiving portion 6242
[0032] Heating element 7 Heating wire 71
[0033] Circuit board 8 Waterproof ring 9
[0034] Car body 200 Vehicle 1000
[0035] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0036] In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.
[0037] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar planning objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate. In other words, the described embodiments are implemented according to a sequence other than that illustrated or described herein. In addition, the terms "including" and "having" and any of their variations may also include other content. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to only those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0038] It should be noted that the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.
[0039] Please see Figure 1-2 , Figure 1 It is a front view schematic diagram of the semi-finished vehicle camera module provided in this embodiment. Figure 2 The present application provides a vehicle-mounted camera module 100, which includes a lens 1, a lens holder 2 for fixing the lens 1, a lens pressure cap 3, a heating wire pressure cap 4, a metal back shell 5 for fixing the lens holder 2, and a barrier 6 connected between the lens pressure cap 3 and the metal back shell 5.
[0040] The lens 1 includes a lens barrel 11 and an optical lens assembly 12 fixed in the lens barrel 11. The lens cover 3 and the heating wire cover 4 are sequentially sleeved outside the lens barrel 11 from away from the lens base 2 to the lens base 2. The end surface of the lens cover 3 facing away from the heating wire cover 4 is provided with a first conductive area 31, and the metal back shell 5 is provided with a second conductive area 51. The barrier 6 includes a sleeve 61 and a plurality of elastic fastening members 62 extending from the sleeve 61; the sleeve 61 is sleeved on the lens 1 and is in close contact with the first conductive area 31, and the plurality of elastic fastening members 62 are located on the outside of the lens 1 and extend toward the lens base 2 and are in close contact with the second conductive area 51; wherein, the barrier 6 is fastened to the lens base 2 through the plurality of elastic fastening members 62; the barrier 6 is in close contact with the first conductive area 31 and the second conductive area 51, so that the lens cover 3 and the metal back shell 5 are electrically connected through the barrier 6.
[0041] Please refer to Figure 3 , Figure 3 6 is a schematic diagram of the structure of the barrier provided in this embodiment. The sleeve 61 is provided with an opening 611, and the sleeve 61 is sleeved on the lens 1 through the opening 611 and is located on the end surface of the lens cover 3 provided with the first conductive area 31. A plurality of elastic fastening members 62 are located outside the lens 1 and extend toward the lens holder 2. The ends of the elastic fastening members 62 are provided with elastic clamping claws 624, and the elastic clamping claws 624 are provided with a rebound portion 6241 protruding outward. The elastic fastening member 62 is fastened to the lens holder 2 through the elastic clamping claws 624 and fixed between the lens holder 2 and the metal rear shell 5, so that the barrier 6 is fixed, and the sleeve 61 is in close contact with the first conductive area 31, and the rebound portion 6241 is deformed and in close contact with the second conductive area 51. In this embodiment, the upper end of the barrier 6 is mounted on the lens 1 through the opening 611 of the sleeve 61, and the lower end is buckled on the lens holder 2 through the elastic clamp 624. The barrier 6 is easy to install, which improves the production efficiency of the camera module 100.
[0042] Further, a plurality of elastic fasteners 62 extend from the edge of the sleeve 61 at equal intervals, and the distance between adjacent elastic fasteners 62 depends on the actual situation. In the present embodiment, the number of the elastic fasteners 62 is 3. In other feasible embodiments, the number of the elastic fasteners 62 may also be increased or decreased according to actual needs, and the number of the elastic fasteners 62 is not limited herein. In the present embodiment, the sleeve 61 is roughly annular. In other feasible embodiments, the sleeve 61 may also be designed into other shapes according to actual needs to adapt to the appearance of different lenses, and the shape of the sleeve 61 is not limited herein.
[0043] Furthermore, the elastic fastening member 62 further includes a base 621 and a first connecting portion 622 and a second connecting portion 623 extending from the base 621 to both sides, and the first connecting portion 622 and the second connecting portion 623 respectively form a certain angle with the base 621. The first connecting portion 622 is connected to the sleeve 61 and the end surface facing inward is in contact with the outer wall of the lens pressure cover 3, and the second connecting portion 623 is connected to the elastic clamping claw 624 and is located between the metal rear shell 5 and the lens holder 2. The end of the elastic clamping claw 624 is provided with a receiving portion 6242 that is bent inward and extends, and the end surface of the receiving portion 6242 close to the sleeve 61 is pressed with the lens holder 2 so that the barrier 6 is fastened on the lens holder 2, and the receiving portion 6242 is parallel to the sleeve 61. In this embodiment, the angle between the first connecting portion 622, the second connecting portion 623 and the base 621 can be designed according to actual needs so that the elastic fastening member 62 is adapted to the shape of the external shell.
[0044] The surfaces of the lens cover 3 and the metal back shell 5 are both insulating layers. The first conductive area 31 and the second conductive area 51 where the lens cover 3 and the metal back shell 5 contact the barrier 6 are laser engraved to break the insulating layer. The metal back shell 5 is grounded. The barrier 6 is made of nickel silver. In this embodiment, the lens cover 3 is electrically connected to the metal back shell 5 through the barrier 6, so that static electricity passes through the lens cover 3, the barrier 6, and the metal back shell 5 in sequence, and is finally grounded, thereby eliminating static electricity and ensuring the functional safety of the camera module 100.
[0045] Please see again Figure 1 The vehicle-mounted camera module 100 further includes a circuit board 8 and a heating assembly 7 for heating the lens 1. The heating assembly 7 includes a heating wire (not shown) disposed inside the heating wire gland 4 and a heating wire 71 extending from between the heating wire gland 4 and the lens gland 3 toward the circuit board 8. One end of the heating wire 71 is electrically connected to the heating wire, and the other end is electrically connected to the circuit board 8. The heating wire 71 is located between the two elastic fastening members 62. In this embodiment, the heating wire 71 passes through the lens holder 2 and is connected to the circuit board 8. It can be understood that the lens holder 2 is provided with a notch (not shown) for the heating wire 71 to pass through.
[0046] The vehicle camera module 100 also includes a waterproof ring 9, which is sleeved on the lens 1 and pressed onto the end surface of the barrier 6 facing away from the lens cover 3, to prevent the barrier 6 from directly contacting the external environment, thereby indirectly extending the service life of the barrier 6.
[0047] Please refer to Figure 4 , Figure 4 1 is a schematic diagram of the structure of the vehicle provided in this embodiment. The present application provides a vehicle 1000, including a vehicle body 200 and a vehicle-mounted camera module 100 disposed on the vehicle body 200. The structure of the vehicle-mounted camera module 100 is not described here in detail, please refer to the above description.
[0048] The above-mentioned vehicle-mounted camera module 100 and the vehicle 1000 thereof use a barrier 6 for static electricity conduction. Specifically, the barrier 6 includes a sleeve 61 and a plurality of elastic fasteners 62 extending from the sleeve 61. The barrier 6 is sleeved on the lens 1 through the sleeve 61 and fastened to the lens holder 2 through a plurality of elastic fasteners 62. The barrier 6 is easy to install, which improves the production efficiency of the camera module 100. The barrier 6 is in close contact with the first conductive area 31 on the lens pressure cover 3 through the sleeve 61, and is in close contact with the second conductive area 51 on the metal rear shell 5 through the elastic fastener 62, so that the lens pressure cover 3 and the metal rear shell 5 are electrically connected through the barrier 6, and then the static electricity is conducted from the lens pressure cover 3 to the metal rear shell 5 to eliminate the static electricity, thereby ensuring the functional safety of the camera module 100.
[0049] The above are only preferred embodiments of the utility model, but do not limit the patent scope of the utility model. Although the utility model is described in detail with reference to the above embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the above specific implementations, or replace some of the technical features with equivalents. Any equivalent structure made by using the contents of the utility model specification and drawings, directly or indirectly used in other related technical fields, is also within the scope of protection of the utility model patent.
Claims
1. A vehicle-mounted camera module, comprising a lens and a lens holder for fixing the lens, wherein the lens comprises a lens barrel and an optical lens assembly fixed in the lens barrel, characterized in that: The lens barrel is provided with a lens cover and a heating wire cover in sequence from the lens base away from the lens base to the lens base; the end surface of the lens cover away from the heating wire cover is provided with a first conductive area; the vehicle-mounted camera module also includes a metal rear shell for fixing the lens base, and a barrier connected between the lens cover and the metal rear shell; the metal rear shell is provided with a second conductive area; The barrier member includes a sleeve member and a plurality of elastic fasteners extending from the sleeve member; the sleeve member is sleeved on the lens and is in close contact with the first conductive area, and the plurality of elastic fasteners are located on the outside of the lens and extend toward the lens holder and are in close contact with the second conductive area; wherein the barrier member is fastened to the lens holder through the plurality of elastic fasteners; the barrier member is in close contact with the first conductive area and the second conductive area so that the lens pressure cover and the metal back shell are electrically connected through the barrier member.
2. The vehicle-mounted camera module according to claim 1, characterized in that: The sleeve member is provided with an opening, and the sleeve member is sleeved on the lens through the opening and is located on the end surface of the lens cover provided with the first conductive area.
3. The vehicle-mounted camera module according to claim 1, characterized in that: An elastic claw is provided at the end of the elastic fastening member, and the elastic claw is provided with a rebound portion protruding outward. The elastic fastening member is fastened to the mirror base by the elastic claw and is fixed between the mirror base and the metal back shell, so that the barrier member is fixed, and the rebound portion is deformed and in close contact with the second conductive area.
4. The vehicle-mounted camera module according to claim 1, characterized in that: The plurality of elastic fastening members are extended from the edge of the sleeve member at equal intervals.
5. The vehicle-mounted camera module according to claim 3, characterized in that: The elastic fastener also includes a base and a first connecting portion and a second connecting portion extending from the base to both sides, the first connecting portion and the second connecting portion respectively forming a certain angle with the base; the first connecting portion is connected to the sleeve and the inward end surface is in contact with the lens pressure cover, the second connecting portion is connected to the elastic clamp and is located between the metal rear shell and the lens holder.
6. The vehicle-mounted camera module according to claim 3, characterized in that: The end of the elastic clamp is provided with a receiving portion that bends inward and extends, and the receiving portion is pressed against the mirror base near the end surface of the sleeve so that the blocking member is buckled on the mirror base; wherein the receiving portion is parallel to the sleeve.
7. The vehicle-mounted camera module according to claim 1, characterized in that: The surfaces of the lens cover and the metal back shell are both insulating layers, and the first conductive area and the second conductive area of the lens cover and the metal back shell that contact the barrier are laser engraved to break the insulating layer, so that the lens cover is electrically connected to the metal back shell through the barrier.
8. The vehicle-mounted camera module according to claim 1, characterized in that: The metal rear shell is grounded.
9. The vehicle-mounted camera module according to claim 1, characterized in that: The barrier is made of nickel silver.
10. A vehicle, characterized in that: It comprises a vehicle body and a vehicle-mounted camera module as described in any one of claims 1 to 9 and arranged on the vehicle body.