A head-up display visor

By designing structures such as an ablation-resistant curved surface, a light-blocking flange, and an imaging transition platform on the sunshade, the problem of deformation or failure caused by sunlight backflow and convergence was solved, thus achieving high-temperature stability of the sunshade and reliability of optical imaging.

CN224311604UActive Publication Date: 2026-06-02JIANGSU HIRAIN AUTOMOTIVE ELECTRONICS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU HIRAIN AUTOMOTIVE ELECTRONICS CO LTD
Filing Date
2025-05-19
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The existing head-up display's hood is prone to deformation or failure under sunlight due to backflow and convergence of light.

Method used

A light shield structure was designed, which includes an anti-ablation arc surface, a light-blocking flange, an imaging transition platform, and a light-blocking protrusion. It is made of metal and connected to the base plate through a connecting plate to separate effective and ineffective light, enhance structural rigidity, and prevent high-temperature ablation.

Benefits of technology

It effectively prevents the light shield from deforming or failing due to high temperature ablation, ensuring the stability and reliability of optical imaging functions.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224311604U_ABST
Patent Text Reader

Abstract

The utility model provides a kind of light shield of head-up display.The upper surface of main body has anti-ablation camber, light blocking flange, imaging transition platform, first light blocking protrusion and second light blocking protrusion, and first light blocking protrusion and second light blocking protrusion are located on both sides of main body respectively, light blocking flange is located on the side adjacent to first light blocking protrusion and second light blocking protrusion, anti-ablation camber is made of metal, and is set on the side close to light blocking flange, and effective light and ineffective light are separated by imaging transition platform, and the lower surface of main body is connected with the bottom plate set below main body by first connecting plate and second connecting plate, forming light outlet.The light shield of head-up display disclosed above can resist high temperature ablation problem caused by focusing by anti-ablation camber made of metal, and thus avoid deformation or failure of the whole light shield due to focusing ablation problem.
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Description

Technical Field

[0001] This utility model relates to the automotive field, specifically to a head-up display sunshade. Background Technology

[0002] A head-up display (HUD) is a device that uses an internal optical imaging system to display vehicle position, speed, road conditions, and other data directly on the windshield within the driver's field of vision. This virtual image is superimposed on the real road surface, creating a fusion of reality and virtuality. Therefore, the application of HUDs allows drivers to avoid looking down at driving information, significantly improving driving safety.

[0003] As an essential component of a head-up display (HUD), the light shield not only ensures the stability and reliability of the HUD's operation but also guarantees good optical imaging capabilities.

[0004] However, since the existing head-up display hoods are mostly made of injection molding and the head-up display is located directly in front of the car's dashboard, under continuous sunlight, multiple internal imaging mirrors reflect the sunlight, causing sunlight to backflow and converge on the surface of the hood. When too much external light causes the temperature to rise, focusing and ablation will occur, which can easily lead to deformation or failure of the hood. Utility Model Content

[0005] In view of this, the present invention provides a head-up display sunshade to solve the problem of deformation or failure of existing sunshades caused by sunlight backflow and concentration on their surface.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A head-up display sunshade includes: a main body and a base plate;

[0008] The upper surface of the main body has an anti-ablation arc surface, a light-blocking flange, an imaging transition platform, a first light-blocking protrusion, and a second light-blocking protrusion. The first and second light-blocking protrusions are located on the two sides of the main body, respectively. The light-blocking flange is located on the side adjacent to the first and second light-blocking protrusions. The anti-ablation arc surface is made of metal and is located on the side close to the light-blocking flange. The imaging transition platform is used to separate effective light rays from ineffective light rays.

[0009] The lower surface of the main body is connected to the base plate located below the main body through the first connecting plate and the second connecting plate to form a light outlet, wherein the light outlet is located between the first light-blocking protrusion and the second light-blocking protrusion.

[0010] Preferably, the first light-blocking protrusion and the second light-blocking protrusion are symmetrically arranged on both sides of the main body.

[0011] Preferably, the first light-blocking protrusion and the second light-blocking protrusion are formed by bending.

[0012] Preferably, the light-blocking flange has an arc structure.

[0013] Preferably, the imaging transition platform is located on one side of the light outlet adjacent to the first connecting plate and the second connecting plate, and the imaging transition platform protects the arc surface area and the planar area.

[0014] Preferably, the first connecting plate and the second connecting plate are formed by bending.

[0015] Preferably, the first connecting plate and the second connecting plate are connected to the base plate by welding.

[0016] Preferably, both the main body and the base plate are made of aluminum alloy by stamping.

[0017] Preferably, the upper surface of the main body is coated with a matte varnish.

[0018] Preferably, the main body has multiple positioning holes.

[0019] Based on the above-described head-up display (HUD) light shield provided by this utility model, the upper surface of the main body has an anti-ablation arc surface, a light-blocking flange, an imaging transition platform, a first light-blocking protrusion, and a second light-blocking protrusion. The first and second light-blocking protrusions are respectively located on both sides of the main body. The light-blocking flange is located on the side adjacent to the first and second light-blocking protrusions. The anti-ablation arc surface is made of metal and is located on the side close to the light-blocking flange. The imaging transition platform separates effective light from ineffective light. The lower surface of the main body is connected to a base plate located below the main body through a first connecting plate and a second connecting plate to form a light outlet. Through the above-disclosed HUD light shield, the anti-ablation arc surface made of metal can resist the high-temperature ablation problem caused by focusing, thereby preventing the overall light shield from deformation or failure due to focusing ablation. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 A schematic diagram of the structure of a head-up display light shield provided in an embodiment of this utility model;

[0022] Figure 2 A top view of the light shield provided in an embodiment of this utility model;

[0023] Figure 3 A side view of the light shield provided in an embodiment of this utility model;

[0024] Figure 4 Another side view of the light shield provided in this embodiment of the utility model;

[0025] Figure 5 A schematic diagram of the main body provided for an embodiment of this utility model;

[0026] Figure 6 A schematic diagram of the structure of the base plate provided in an embodiment of this utility model;

[0027] Figure 7 This is a schematic diagram of the structure of the light shield installed on the housing according to an embodiment of the present invention.

[0028] The components include: main body 1, anti-ablation arc surface 11, light-blocking flange 12, imaging transition platform 13, first light-blocking protrusion 14, second light-blocking protrusion 15, first connecting plate 16, second connecting plate 17, base plate 2, and shell 3. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] This utility model embodiment provides a head-up display light shield, see [link to relevant documentation]. Figures 1 to 6 , Figure 1 This is a schematic diagram of the structure of a head-up display light shield, which includes: a main body 1 and a base plate 2;

[0031] The upper surface of the main body 1 has an anti-ablation arc surface 11, a light-blocking flange 12, an imaging transition platform 13, a first light-blocking protrusion 14, and a second light-blocking protrusion 15. The first light-blocking protrusion 14 and the second light-blocking protrusion 15 are located on both sides of the main body 1, respectively. The light-blocking flange 12 is located on the side adjacent to the first light-blocking protrusion 14 and the second light-blocking protrusion 15. The anti-ablation arc surface 11 is made of metal and is located on the side close to the light-blocking flange 12. The imaging transition platform 13 is used to separate effective light and ineffective light.

[0032] The lower surface of the main body 1 is connected to the bottom plate 2 located below the main body 1 through the first connecting plate 16 and the second connecting plate 17 to form a light outlet, wherein the light outlet is located between the first light-blocking protrusion 14 and the second light-blocking protrusion 15.

[0033] It should be noted that the anti-ablation arc surface 11 is designed according to the shape of the internal light. It is 3mm away from the light envelope. This position is the most likely area for sunlight backflow. Therefore, placing the metal anti-ablation arc surface 11 on the side close to the light-blocking flange 12 can effectively prevent the problem of focused ablation in this area.

[0034] The light-blocking flange 12 is a flange structure with a preset height, which can effectively improve the overall rigidity of the light shield and also play a certain role in blocking light for the adjacent large reflector, preventing external light from focusing and burning the optical components.

[0035] The imaging transition platform 13 is located near the conversion area between the internal primary optical path and the secondary optical path. This imaging transition platform 13 is used to separate the effective light rays and the ineffective light rays, ensuring that the edges of the final image are neat and uniform, and also plays a role in strengthening the structure.

[0036] It should also be noted that the base plate 2 is positioned 3mm away from the light source, which can both block ineffective light and protect the circuit board located below it.

[0037] This embodiment of the invention features an anti-ablation arc surface 11, a light-blocking flange 12, an imaging transition platform 13, a first light-blocking protrusion 14, and a second light-blocking protrusion 15 on the upper surface of the main body 1. The first light-blocking protrusion 14 and the second light-blocking protrusion 15 are located on opposite sides of the main body 1. The light-blocking flange 12 is located on the side adjacent to the first light-blocking protrusion 14 and the second light-blocking protrusion 15. The anti-ablation arc surface 11 is made of metal and is located on the side close to the light-blocking flange 12. The imaging transition platform 13 separates effective light from ineffective light. The lower surface of the main body 1 is connected to the base plate 2 located below the main body 1 via a first connecting plate 16 and a second connecting plate 17 to form a light outlet. Through the aforementioned head-up display light shield, the metal anti-ablation arc surface 11 can resist the high-temperature ablation problem caused by focusing, thereby preventing the overall light shield from deformation or failure due to focusing ablation.

[0038] Specifically, the first light-blocking protrusion 14 and the second light-blocking protrusion 15 are symmetrically arranged on both sides of the main body 1.

[0039] It should be noted that the first light-blocking protrusion 14 and the second light-blocking protrusion 15 are symmetrically arranged on both sides of the main body 1, which can isolate the light system from the structure of the housing 3, shield the optical tunnel effect formed by the side wall of the housing 3, and further ensure the optical imaging function of the head-up display.

[0040] Specifically, the first light-blocking protrusion 14 and the second light-blocking protrusion 15 are formed by bending.

[0041] It should be noted that the first light-blocking protrusion 14 and the second light-blocking protrusion 15 can be formed by bending, or fixed by welding, bonding or snap-fitting. Those skilled in the art can choose according to their needs.

[0042] Preferably, the height of the first light-blocking protrusion 14 and the second light-blocking protrusion 15 is 20mm.

[0043] It should be noted that the height of the first light-blocking protrusion 14 and the second light-blocking protrusion 15 can be set to 20mm or other heights, and those skilled in the art can choose according to their needs.

[0044] Furthermore, the light-blocking flange 12 has an arc-shaped structure.

[0045] It should be noted that setting the light-blocking flange 12 as an arc structure can further improve the overall rigidity of the light shield.

[0046] It should also be noted that the light-blocking flange 12 can be an arc-shaped structure or other types of structures, and those skilled in the art can choose according to their needs.

[0047] Preferably, the light-blocking flange 12 has a flange structure with a height of 6mm.

[0048] It should be noted that the height of the light-blocking flange 12 is 6mm, but it can also be a flange structure of other heights. Those skilled in the art can set the height of the flange structure according to their needs.

[0049] Specifically, the imaging transition platform 13 is located on one side of the light outlet adjacent to the first connecting plate 16 and the second connecting plate 17, and the imaging transition platform 13 protects the arc surface area and the planar area.

[0050] It should be noted that by setting the imaging transition platform 13 on one side of the light outlet adjacent to the first connecting plate 16 and the second connecting plate 17, and by protecting the arc area and the plane area, the imaging transition platform 13 can further ensure that the imaging transition platform 13 separates the effective light and the ineffective light, so as to ensure that the edge of the final image is neat and uniform.

[0051] Furthermore, the first connecting plate 16 and the second connecting plate 17 are formed by bending.

[0052] It should be noted that forming the first connecting plate 16 and the second connecting plate 17 by bending can effectively ensure the connection strength between the first connecting plate 16, the second connecting plate 17 and the main body 1.

[0053] It should also be noted that the first connecting plate 16, the second connecting plate 17 and the main body 1 can also be connected by welding, and those skilled in the art can choose according to their needs.

[0054] Specifically, the first connecting plate 16 and the second connecting plate 17 are connected to the base plate 2 by welding.

[0055] It should be noted that the first connecting plate 16 and the second connecting plate 17 can be connected to the base plate 2 by welding or by bolts. Those skilled in the art can choose according to their needs.

[0056] Specifically, both the main body 1 and the base plate 2 are made of aluminum alloy by stamping.

[0057] It should be noted that the main body 1 and the base plate 2 are made of aluminum alloy stamping, which not only improves the overall rigidity of the main body 1 and the bottom, but also reduces the processing difficulty.

[0058] Furthermore, the upper surface of the main body 1 is coated with matte paint.

[0059] It should be noted that by spraying matte paint on the upper surface of the main body 1, external sunlight shines on the sunshade, thus further preventing the sunshade from heating up, deforming, or failing due to sunlight exposure.

[0060] Specifically, the main body 1 has multiple positioning holes.

[0061] It should be noted that by opening multiple positioning holes in the main body 1, it is convenient to align and install the sunshade with the housing 3.

[0062] Preferably, the data for the positioning holes include the main positioning hole and the auxiliary positioning slotted hole;

[0063] The main body 1 has multiple round holes;

[0064] The main positioning hole has a diameter of 4.2mm, the auxiliary positioning oblong hole has a size of 4.2mm*5.2mm, and the round hole has a diameter of 3.5mm.

[0065] It should be noted that by opening multiple circular holes in the main body 1, the main body 1 can be fixedly connected to the shell 3 by bolts passing through the circular holes, such as... Figure 7 As shown.

[0066] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A head-up display sunshade, characterized in that, include: Main body and base plate; The upper surface of the main body has an anti-ablation arc surface, a light-blocking flange, an imaging transition platform, a first light-blocking protrusion, and a second light-blocking protrusion, wherein the first light-blocking protrusion and the second light-blocking protrusion are located on both sides of the main body; the light-blocking flange is located on the side adjacent to the first light-blocking protrusion and the second light-blocking protrusion; the anti-ablation arc surface is made of metal and is located on the side close to the light-blocking flange; the imaging transition platform is used to separate effective light and ineffective light. The lower surface of the main body is connected to the base plate located below the main body through the first connecting plate and the second connecting plate to form a light outlet, wherein the light outlet is located between the first light-blocking protrusion and the second light-blocking protrusion.

2. The head-up display light shield according to claim 1, characterized in that, The first light-blocking protrusion and the second light-blocking protrusion are symmetrically arranged on both sides of the main body.

3. The head-up display light shield according to claim 1, characterized in that, The first light-blocking protrusion and the second light-blocking protrusion are formed by bending.

4. The head-up display light shield according to claim 1, characterized in that, The light-blocking flange has an arc-shaped structure.

5. The head-up display light shield according to claim 1, characterized in that, The imaging transition platform is located on one side of the light outlet adjacent to the first connecting plate and the second connecting plate, and the imaging transition platform protects the arc surface area and the planar area.

6. The head-up display light shield according to claim 1, characterized in that, The first connecting plate and the second connecting plate are formed by bending.

7. The head-up display light shield according to claim 6, characterized in that, The first connecting plate and the second connecting plate are connected to the base plate by welding.

8. The head-up display light shield according to claim 1, characterized in that, Both the main body and the base plate are made of aluminum alloy by stamping.

9. The head-up display light shield according to claim 1, characterized in that, The upper surface of the main body is coated with matte paint.

10. The head-up display light shield according to claim 1, characterized in that, The main body has multiple positioning holes.