Electrochromic sun shield for automobile

Abstract

The utility model discloses an automobile electrochromism sun shield which comprises a rotating shaft and a sun shield body fixedly connected with the rotating shaft, the sun shield body is of a multi-layer structure, and the multi-layer structure comprises a first conductive substrate, an electrochromism active layer and a second conductive substrate which are sequentially and fixedly connected from top to bottom; the first conductive substrate comprises a first conductive layer and a first base material layer which are fixedly connected, and the second conductive substrate comprises a second conductive layer and a second base material layer which are fixedly connected; the first conductive layer comprises a high conductivity area and a transparent conductivity area which are fixedly connected; and the second conductive layer comprises a high-conductivity area and a transparent conductivity area which are fixedly connected. According to the electrochromic sun shield, the electrochromic technology is applied to the sun shield, and the defects that a traditional sun shield is low in view field breadth, attractiveness and use comfort are overcome.

Description

Technical Field

[0001] The utility model relates to the field of automobile parts, in particular to an electrochromic sun visor for an automobile. Background Art

[0002] The strong glare caused by strong light from the front while driving a car will affect the driver's safe driving. Currently, opaque sun visors are usually used inside cars to block the strong light. Opaque sun visors will reduce the breadth of vision during use, posing a safety hazard.

[0003] Electrochromic devices can achieve reversible changes in the optical absorption properties of materials under voltage drive, thereby adjusting the optical transmittance. Summary of the Invention

[0004] In order to solve the above technical problems, the purpose of the present utility model is to provide an electrochromic sun visor for automobiles that can adjust different transmittances according to needs to alleviate different degrees of strong glare and ensure the width of the field of view.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the present utility model is: an electrochromic sun visor for a car, comprising a rotating shaft and a sun visor fixedly connected to the rotating shaft, the sun visor being a multi-layer structure, the multi-layer structure comprising a first conductive substrate, an electrochromic active layer, and a second conductive substrate fixedly connected in sequence from top to bottom.

[0006] According to a preferred technical solution, the first conductive substrate includes a first conductive layer and a first base material layer that are fixedly connected, and the second conductive substrate includes a second conductive layer and a second base material layer that are fixedly connected.

[0007] According to a further technical solution, the first conductive layer includes a high-conductivity region and a transparent conductive region that are fixedly connected; and the second conductive layer includes a high-conductivity region and a transparent conductive region that are fixedly connected.

[0008] In the above technical solution, the visible light transmittance of the transparent conductive area is greater than 10%, and the sheet resistance of the high conductive area is at least 10% smaller than that of the transparent conductive area. The vertical projections of the first conductive substrate and the second conductive substrate do not overlap in at least part.

[0009] According to a further technical solution, the vertical projection area of ​​the transparent electrical region is smaller than or equal to the projection area of ​​the electrochromic active layer.

[0010] According to a further technical solution, a lead-out electrode is fixedly provided on the high-conductivity area.

[0011] According to a preferred technical solution, a sealant is fixedly provided on the open end of the electrochromic active layer.

[0012] A further technical solution includes a shell, which covers the high-conductivity area, and the rotating shaft is fixed in the shell.

[0013] According to a further technical solution, a voltage control module is fixedly provided in the housing, and the voltage control module is electrically connected to the lead-out electrode via a wire.

[0014] In the above technical solution, the lead-out electrode can be connected to an external voltage control module via a wire, and the glare can be suppressed by adjusting different optical transmittances by controlling the voltage according to the degree of glare.

[0015] According to a further technical solution, the high-conductivity area is provided with a mounting notch, and the first conductive substrate and the second conductive substrate are fixedly mounted in the housing through the mounting notch.

[0016] In the above technical solution, a matching buckle can be provided in the installation notch.

[0017] The advantages of the utility model are:

[0018] This new design applies electrochromic technology to sun visors, overcoming the drawbacks of traditional sun visors in terms of visual range, aesthetics, and user comfort. Electrochromic sun visors can adjust optical transmittance to varying degrees of glare through voltage control, ensuring a wide field of view while also suppressing glare, enhancing safety, convenience, and comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. The drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 This is a schematic diagram of the structure of the utility model;

[0022] Figure 2 for Figure 1 Middle AA section view;

[0023] Figure 3 It is a structural schematic diagram of the utility model with a shell.

[0024] Among them: 1. rotating shaft; 2. first conductive substrate; 3. electrochromic active layer; 4. second conductive substrate; 5. first substrate layer; 6. second substrate layer; 7. high conductivity area; 8. transparent conductive area; 9. lead-out electrode; 10. outer shell; 11. control switch. DETAILED DESCRIPTION

[0025] Example: Figure 1 、 2 As shown, an electrochromic sun visor for a car includes a rotating shaft 1 and a sun visor fixedly connected to the rotating shaft 1. The sun visor has a multi-layer structure, which includes a first conductive substrate 2, an electrochromic active layer 3 and a second conductive substrate 4 fixedly connected in sequence from top to bottom.

[0026] The first conductive substrate 2 includes a first conductive layer and a first base material layer 5 that are fixedly connected, and the second conductive substrate 4 includes a second conductive layer and a second base material layer 6 that are fixedly connected.

[0027] The first substrate layer 5 and the second substrate layer 6 can be one of glass, polymer and a laminated material of polymer and glass, wherein the polymer material can be independently selected from one or more of polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polymethyl methacrylate (PMMA) and polyimide (PI).

[0028] The first conductive layer includes a high-conductivity region 7 and a transparent conductive region 8 that are fixedly connected; the second conductive layer includes a high-conductivity region 7 and a transparent conductive region 8 that are fixedly connected.

[0029] The transparent conductive area can be made of an alloy or composite film material composed of one or more materials selected from the group consisting of indium-doped tin oxide (ITO), fluorine-doped tin oxide (FTO), aluminum-doped zinc oxide (AZO), gallium-doped zinc oxide (GZO), Ag, Au, Cu, Ni, Pt, Pd, Au, Cr, Zn, Ti, Pb, Ru, and Rh.

[0030] The high conductivity region 7 can be made of an alloy or composite film material composed of one or more materials selected from Ag, Au, Cu, Ni, Pt, Pd, Au, Cr, Zn, Ti, Pb, Ru, Rh, ITO, FTO, AZO, and GZO.

[0031] The visible light transmittance of the transparent conductive area 8 is greater than 10%, and the sheet resistance of the high conductive area 7 is at least 10% smaller than that of the transparent conductive area. The vertical projections of the first conductive substrate 2 and the second conductive substrate 4 do not overlap in at least some areas.

[0032] The vertical projection area of ​​the transparent electrical region is greater than or equal to the projection area of ​​the electrochromic active layer 3. A sealant is fixed to the open end of the electrochromic active layer 3. The edge area of ​​the electrochromic device not covered by the housing 10 is rounded.

[0033] An extraction electrode 9 is fixedly provided on the high-conductivity region 7 .

[0034] like Figure 3 As shown, it includes a housing 10 , which covers the high-conductivity area 7 , and the rotating shaft 1 is fixed in the housing 10 .

[0035] A voltage control module is fixedly disposed in the housing 10 , and the voltage control module is electrically connected to the lead-out electrode 9 via a wire.

[0036] The lead electrode 9 can be connected to an external voltage control module via a wire. A control switch 11 is fixedly mounted on the housing 10 and electrically connected to the voltage control module. Depending on the degree of glare, different optical transmittances are adjusted by controlling the voltage to suppress glare.

[0037] The high conductivity area 7 is provided with a mounting notch, through which the first conductive substrate 2 and the second conductive substrate 4 are fixedly mounted in the housing 10. Matching buckles can be provided in the mounting notch.

[0038] The usage of this embodiment:

[0039] When encountering strong light, the shaft 1 rotates to flip the sun visor. According to the degree of glare, different optical transmittances are adjusted by controlling the voltage to suppress glare.

[0040] This embodiment satisfies the function of suppressing glare while ensuring the breadth of the field of view, thereby improving the safety, convenience and comfort of using the sun visor.

Claims

1. An electrochromic sun visor for an automobile, comprising a rotating shaft and a sun visor fixedly connected to the rotating shaft, characterized in that: The sun visor has a multi-layer structure, which includes a first conductive substrate, an electrochromic active layer, and a second conductive substrate fixedly connected in sequence from top to bottom; the first conductive substrate includes a first conductive layer and a first base material layer fixedly connected, and the second conductive substrate includes a second conductive layer and a second base material layer fixedly connected; the first conductive layer includes a high conductivity area and a transparent conductive area fixedly connected; the second conductive layer includes a high conductivity area and a transparent conductive area fixedly connected.

2. The electrochromic sun visor for automobile according to claim 1, characterized in that: The vertical projection area of ​​the transparent conductive region is smaller than or equal to the projection area of ​​the electrochromic active layer.

3. The electrochromic sun visor for automobile according to claim 1, characterized in that: The open end of the electrochromic active layer is fixed with a sealant.

4. The electrochromic sun visor for automobile according to claim 1, characterized in that: An extraction electrode is fixedly provided on the high conductivity area; The device comprises a shell, wherein the shell covers the high-conductivity area, and the rotating shaft is fixed in the shell.

5. The electrochromic sun visor for automobile according to claim 4, characterized in that: A voltage control module is fixedly arranged in the shell, and the voltage control module is electrically connected to the lead-out electrode through a wire.

6. The electrochromic sun visor for automobile according to claim 5, characterized in that: The high-conductivity area is provided with an installation notch, and the first conductive substrate and the second conductive substrate are fixedly installed in the shell through the installation notch.

7. The electrochromic sun visor for automobile according to claim 1, characterized in that: At least a portion of the projections of the first conductive substrate and the second conductive substrate in the vertical direction do not overlap.

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