Automobile electronic rearview mirror structure
By using a mirror bracket to support the turn signals and CMS camera in the automotive electronic rearview mirror, and by using a flexible light source circuit board and wiring harness fasteners, the problems of structural layout and assembly difficulties have been solved, achieving a compact structural design and an aesthetically pleasing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING YIMEI IND DEV CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-04-24
AI Technical Summary
The structure of electronic rearview mirrors is limited by its dimensions, making assembly and placement difficult, especially the installation of turn signals and decorative parts.
Using a mirror bracket as a carrier, the turn signal assembly and CMS camera are installed. Flexible light source circuit boards and wiring harness fasteners are used, and the lamp holder and lamp cover are connected by friction vibration welding process. The mirror bracket design is optimized to reduce the size and fix the wiring harness.
It achieves a compact structural layout for electronic rearview mirrors, prevents abnormal noise from wiring harness friction, improves assemblability and aesthetics, and reduces overall size and weight.
Smart Images

Figure CN224159221U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive technology, and in particular to an automotive electronic rearview mirror structure. Background Technology
[0002] With the application of Camera-Monitor Systems (CMS) in rearview mirrors, electronic rearview mirrors have emerged. Replacing traditional optical rearview mirrors, electronic rearview mirrors provide drivers with a wider field of vision, eliminate blind spots, reduce accidents, and mitigate the effects of adverse weather conditions, significantly improving upon some of the drawbacks of traditional rearview mirrors. The structure of electronic rearview mirrors provides an excellent platform for camera-monitor systems. Because electronic rearview mirrors use CMS to replace traditional optical lenses, the structure is smaller, with a focus on a compact and lightweight design. While achieving weight reduction, this also makes the layout more compact, presenting certain structural challenges. The assembly of commonly used turn signal structures and various decorative components cannot be solved on electronic rearview mirrors. Utility Model Content
[0003] In view of the above-mentioned shortcomings of the existing technology, the purpose of this utility model is to provide an automotive electronic rearview mirror structure to solve the problem of structural layout and assembly difficulties caused by structural size limitations after adopting electronic rearview mirrors.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: an automotive electronic rearview mirror structure includes a mirror bracket, one end of which is used to connect to the vehicle body. A turn signal assembly is installed on the front side of the mirror bracket, and a CMS camera is installed on the mirror bracket. The lens of the CMS camera faces away from the end of the mirror bracket used to connect to the vehicle body and is tilted to the rear. The turn signal assembly includes a lamp holder installed on the mirror bracket and a lamp cover installed on the lamp holder. A light source assembly is installed between the lamp holder and the lamp cover. The light source assembly includes a flexible light source circuit board and a light guide strip. The light source circuit board has a light source, which is directly opposite the end of the light guide strip. The light guide strip extends along the length of the lamp cover. The CMS camera and the light source circuit board are connected to a wire harness. A wire harness fixing component is also provided on the mirror bracket for fixing the wire harness.
[0005] As an optimization, a wing-shaped decorative piece is also installed on the side of the mirror bracket closest to the vehicle body.
[0006] As an optimization, an upper lens shell and a lower lens shell are fastened and installed on the upper and lower sides of the lens body bracket, and a lens frame is installed on the lens body bracket at the position corresponding to the CMS camera. The wing-shaped decorative piece, the upper lens shell, the lower lens shell, and the lens frame together form the rearview mirror housing. The lens frame has a lens hole that matches the lens of the CMS camera, and the lens of the CMS camera is located in the lens hole.
[0007] As an optimization, the light source circuit board includes a first plate and a second plate that are flexibly connected. The light source is mounted on the second plate. When the light source circuit board is mounted on the lamp holder, the light source circuit board is L-shaped as a whole. The second plate is perpendicular to the extension direction of the light guide strip, so that the light source is directly opposite the end of the light guide strip.
[0008] As an optimization, the lamp holder and lamp cover are connected by a friction vibration welding process.
[0009] Compared with the prior art, this utility model has the following advantages: by using a mirror bracket as a carrier to support components such as the turn signal assembly and CMS camera, the assembly and overall integrity are better. In order to adapt to the small size of the electronic rearview mirror, a flexible light source circuit board is used in the turn signal assembly, which can be folded, reducing the volume occupied and the overall size. At the same time, a wiring harness fixing component is designed to fix the wiring harness, effectively preventing the wiring harness from swinging inside the mirror body and causing friction noise when the rearview mirror is folded, thus improving the aesthetics and user experience. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the assembled exploded structure of this utility model;
[0011] Figure 2 This is a schematic diagram of the installation structure of the CMS camera in this utility model;
[0012] Figure 3 This is a schematic diagram of the turn signal assembly in this utility model;
[0013] In the picture: 1. Mirror body bracket, 2. Turn signal assembly, 3. CMS camera, 4. Wiring harness, 5. Wiring harness fastener, 6. Wing decorative piece, 7. Upper mirror housing, 8. Lower mirror housing, 9. Mirror frame, 10. Lamp holder, 11. Lamp cover, 12. Light source circuit board, 13. Light guide strip. Detailed Implementation
[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0016] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship commonly used when the product is in use. They are only for the convenience of describing the invention 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 the invention. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In addition, the terms "horizontal," "vertical," etc., do not indicate that the component is required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0017] Example: See Figures 1 to 3 An automotive electronic rearview mirror structure includes a mirror bracket 1, one side of which is connected to the vehicle body. A turn signal assembly 2 is mounted on the front end of the mirror bracket 1, and a CMS camera 3 is mounted on the mirror bracket 1. The lens of the CMS camera 3 faces the rear side of the mirror bracket 1 away from the vehicle body and the turn signal assembly 2. The CMS camera 3 is connected to the vehicle's power supply via a wiring harness 4. The turn signal assembly 2 includes a lamp holder 10 mounted on the mirror bracket 1 and a lamp cover 11 mounted on the lamp holder 10. A light source assembly is installed between the lamp holder 10 and the lamp cover 11. The light source assembly includes a flexible light source circuit board 12 and a light guide strip 13. The light source is located on the light source circuit board 12, directly opposite the end of the light guide strip 13. The light guide strip 13 extends along the length of the lamp cover 11 and has a light guide pattern on the side of the light guide strip 13 away from the lamp cover 11. A wiring harness fixing member 5 is also provided on the mirror bracket 1 for fixing the wiring harness 4.
[0018] The light source circuit board 12 includes a first plate and a second plate that are flexibly connected. The light source is mounted on the second plate. When the light source circuit board 12 is mounted on the lamp holder 10, the light source circuit board 12 is L-shaped overall. The second plate is perpendicular to the extension direction of the light guide strip 13, so that the light source is directly opposite the end of the light guide strip 13, thus occupying a smaller volume and making the overall structure of the electronic rearview mirror more compact. The length directions of the lamp holder 10, lampshade 11, and light guide strip 13 all extend along curves or arcs. A decorative plate is provided between the light source circuit board 12 and the lampshade 11. The projection of the decorative plate on the lampshade 11 completely covers the projection of the light source circuit board 12 on the lampshade 11. A decorative structural layer is engraved or sprayed on the side of the decorative plate near the lampshade 11.
[0019] A wing-shaped decorative piece 6 is also installed on the side of the mirror bracket 1 closest to the vehicle body. An upper mirror housing 7 and a lower mirror housing 8 are fastened together on the upper and lower sides of the mirror bracket 1, and a mirror frame 9 is installed on the mirror bracket 1 at the position corresponding to the CMS camera 3. The mirror frame 9 has a mirror hole that mates with the lens of the CMS camera 3. Specifically, all components (such as the turn signal assembly 2, the CMS camera 3, the upper mirror housing 7, the lower mirror housing 8, the wing-shaped decorative piece 6, etc.) are assembled onto the mirror bracket 1 using screws.
[0020] The lamp holder 10 and the lamp cover 11 are connected by friction vibration welding, which effectively ensures the waterproof performance of the turn signal.
[0021] In summary, this utility model
[0022] The mirror body is only 43-55mm thick, which is very thin, effectively reducing weight and greatly reducing wind resistance. However, it also brings challenges to the layout of the internal structure.
[0023] therefore,
[0024] 1. The turn signal design incorporates a flexible circuit board to address the issue of limited space in the structural layout. Simultaneously, the turn signal lens and housing still utilize friction vibration welding, effectively ensuring the turn signal's waterproof performance.
[0025] 2. All external parts of the lens body are assembled on the lens body bracket. The lens body bracket also supports the installation of the CMS camera.
[0026] 3. The design incorporates a wiring harness fixing component to secure the wiring harness, effectively preventing the wiring harness from swinging inside the mirror body and causing friction noise when the rearview mirror is folded.
[0027] This utility model uses a mirror bracket as a carrier to support components such as the turn signal assembly and CMS camera, resulting in better assemblability and overall integrity. In order to adapt to the small size of the electronic rearview mirror, the turn signal assembly uses a flexible light source circuit board, which can be folded to reduce the volume occupied and the overall size. At the same time, a wiring harness fixing component is designed to fix the wiring harness, effectively preventing the wiring harness from swinging inside the mirror body and causing friction noise when the rearview mirror is folded, thus improving aesthetics and user experience.
[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and not to limit the technical solutions. Those skilled in the art should understand that any modifications or equivalent substitutions to the technical solutions of this utility model that do not depart from the spirit and scope of this technical solution should be covered within the scope of the claims of this utility model.
Claims
1. A structure for an automotive electronic rearview mirror, characterized in that, The system includes a mirror bracket, one end of which is connected to a vehicle body. A turn signal assembly is mounted on the front side of the mirror bracket, and a CMS camera is mounted on the mirror bracket. The lens of the CMS camera faces away from the end of the mirror bracket that is connected to the vehicle body and is tilted to the rear. The turn signal assembly includes a lamp holder mounted on the mirror bracket and a lamp cover mounted on the lamp holder. A light source assembly is installed between the lamp holder and the lamp cover. The light source assembly includes a flexible light source circuit board and a light guide strip. The light source is located on the light source circuit board and is directly opposite the end of the light guide strip, which extends along the length of the lamp cover. The CMS camera and the light source circuit board are connected to a wire harness. A wire harness fixing component is also provided on the mirror bracket for fixing the wire harness.
2. The automotive electronic rearview mirror structure according to claim 1, characterized in that: A wing-shaped decorative piece is also installed on the side of the mirror bracket closest to the vehicle body.
3. The automotive electronic rearview mirror structure according to claim 2, characterized in that: An upper lens housing and a lower lens housing are fastened and installed on the upper and lower sides of the lens body bracket, and a lens frame is installed on the lens body bracket at the position corresponding to the CMS camera. The wing-shaped decorative piece, the upper lens housing, the lower lens housing, and the lens frame together form the rearview mirror housing. The lens frame has a lens hole that matches the lens of the CMS camera, and the lens of the CMS camera is located in the lens hole.
4. The automotive electronic rearview mirror structure according to claim 1, characterized in that: The light source circuit board includes a first plate and a second plate that are flexibly connected. The light source is mounted on the second plate. When the light source circuit board is mounted on the lamp holder, the light source circuit board is L-shaped as a whole. The second plate is perpendicular to the extension direction of the light guide strip, so that the light source is directly opposite the end of the light guide strip.
5. The automotive electronic rearview mirror structure according to claim 1, characterized in that: The lamp holder and lamp cover are connected by friction vibration welding.