Electrochromic anti-dazzling automobile rearview mirror lens and assembly

Abstract

The utility model relates to an electrochromic anti-dazzling automobile rearview mirror lens and an assembly. The electrochromic anti-dazzling automobile rearview mirror lens comprises a first substrate, a second substrate and a second conductive clamp, the first substrate comprises a first surface and a second surface, and the second surface is provided with a transparent conductive film layer; the second substrate comprises a third surface and a fourth surface, and the third surface is provided with a conductive reflecting film layer; the second substrate and the first substrate are arranged in a spaced mode and define a cavity through a sealing piece, and the cavity is filled with an electrochromic medium; the second conductive clamp is arranged at the edge of one long side of the second substrate, one end of the second conductive clamp extends to the corresponding position of the sealing piece and is in contact with the conductive reflecting film layer, and the other end extends to the fourth surface of the second substrate; wherein a corresponding insulating film layer is arranged in the peripheral area of the corresponding long edge of the second surface of the first substrate along the long edge direction of the second substrate at the position where the second conductive clip is arranged. According to the lens, electrical connection is safe and reliable, the color changing response speed is high, and driving safety is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of rearview mirrors, in particular to an electrochromic anti-glare automobile rearview mirror lens and an assembly. Background Art

[0002] In the field of automotive rearview mirror technology, it is crucial to ensure that the driver has a good rear view under various lighting conditions. Traditional rearview mirrors are prone to glare in strong light or night light conditions, affecting driving safety. To solve this problem, electrochromic rearview mirror technology has emerged. It adjusts the reflectivity to adapt to different lighting environments and reduce glare. However, existing electrochromic rearview mirrors have some technical limitations, such as slow response speed, insufficient structural stability and poor reliability of electrical connections. These factors limit their performance and service life. Especially under rapidly changing lighting conditions, existing technologies are difficult to adjust quickly to adapt to the environment and meet the driver's needs for clear vision. Therefore, there is an urgent need to provide an electrochromic rearview mirror that can quickly respond to lighting changes, has a stable structure and reliable electrical connections to improve driving safety and comfort. Summary of the Invention

[0003] In light of the shortcomings of the prior art, the present invention provides an electrochromic anti-glare rearview mirror lens to address technical issues such as slow response speed and unstable electrical connections, which lead to reduced electrochromic performance. By introducing an insulating film layer and optimizing the conductive clip structure and electrical connection method, the present invention aims to provide an electrochromic anti-glare rearview mirror lens with a more stable structure, faster response speed, and longer service life, thereby improving driving safety and comfort.

[0004] In order to achieve the above objects, the technical solution adopted by the present invention is:

[0005] An electrochromic anti-glare automobile rearview mirror lens, comprising:

[0006] A first substrate, the first substrate comprising a first surface and a second surface, the second surface of the first substrate being provided with a transparent conductive film layer;

[0007] a second substrate, the second substrate comprising a third surface and a fourth surface, the third surface of the second substrate being provided with a conductive reflective film layer;

[0008] The second substrate and the first substrate are arranged in a spaced relationship and define a cavity through a seal, wherein the cavity is filled with an electrochromic medium; and

[0009] a second conductive clip, the second conductive clip being disposed at an edge of one of the long sides of the second substrate, one end of the second conductive clip extending to a corresponding position of the seal and contacting the conductive reflective film layer, and the other end extending to the fourth surface of the second substrate;

[0010] Wherein, along the long side direction of the second substrate where the second conductive clip is set, a corresponding insulating film layer is set on the peripheral area of ​​the second surface of the first substrate corresponding to the long side.

[0011] As a preferred technical solution, the insulating film layer is ink.

[0012] As a preferred technical solution, the lens also includes a first conductive clip, which is arranged at the edge of the other long side of the second substrate, one end of the first conductive clip extends to the fourth surface of the second substrate, and the other end extends to the corresponding position of the seal and contacts the transparent conductive film layer, or the other end extends to the corresponding position of the seal but does not contact the transparent conductive film layer, but extends to the insulating area of ​​the third surface of the second substrate.

[0013] As a preferred technical solution, an annular insulating area is provided in the peripheral area of ​​the third surface of the second substrate, and the insulating area is divided into a first insulating area and a second insulating area. The first insulating area is the peripheral area of ​​the conductive reflective film layer continuously etched, and the second insulating area is the peripheral area of ​​the conductive reflective film layer intermittently etched. The length of the second insulating area is greater than the length of the second conductive glue.

[0014] As a preferred technical solution, a first conductive adhesive and a second conductive adhesive are respectively arranged near the edge of the second substrate along the direction of extension of the two long sides of the first substrate; the first conductive adhesive establishes an electrical connection relationship with the transparent conductive film layer and the first conductive clip, and the second conductive adhesive establishes an electrical connection relationship with the conductive reflective film layer and the second conductive clip.

[0015] As a preferred technical solution, the second substrate is provided with double-sided tape at corresponding positions of the first conductive clip and the second conductive clip, respectively, and the double-sided tape is arranged on the fourth surface of the second substrate.

[0016] As a preferred technical solution, the second substrate is further provided with a first conductive sheet and a second conductive sheet at corresponding positions of the first conductive clip and the second conductive clip, respectively. One end of the first conductive sheet extends to the edge of the second substrate, and the other end extends to the fourth surface of the second substrate. One end of the second conductive sheet extends to the edge of the second substrate, and the other end extends to the fourth surface of the second substrate. The first conductive sheet and the second conductive sheet are in contact with the first conductive clip and the second conductive clip, respectively.

[0017] As a preferred technical solution, an annular shielding layer is provided in the peripheral area of ​​the second surface of the first substrate, and the shielding layer is arranged between the second surface of the first substrate and the transparent conductive film layer, and the width of the shielding layer along the direction of the second surface of the first substrate is greater than or equal to the width of the insulating film layer and the width of the sealing member.

[0018] Another aspect of the present invention is to provide an electrochromic anti-glare automobile rearview mirror assembly, which includes the electrochromic anti-glare automobile rearview mirror lens as described above.

[0019] Beneficial effects of the utility model:

[0020] The electrochromic anti-glare automotive rearview mirror lens of this utility model optimizes the lens structure to ensure that the electrochromic medium is effectively encapsulated between two substrates. It is connected to an external circuit via a conductive clip, thereby improving the response speed and color change efficiency of the electrochromic medium, thereby enhancing driving safety. Furthermore, by providing an insulating film layer on the periphery of one of the long sides of the second surface of the first substrate, electrical short circuits between the transparent conductive film layer and the conductive reflective film layer are effectively prevented, thereby improving the safety and reliability of the lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a front view of the electrochromic anti-glare automobile rearview mirror lens of the utility model.

[0022] Figure 2 The figure is a rear view of the electrochromic anti-glare automobile rearview mirror lens of the present invention.

[0023] Figure 2a for Figure 2 A partial enlarged view of point A in the middle.

[0024] Figure 2b for Figure 2 A partial enlarged view of point B in the middle.

[0025] Figure 3 for Figure 2 Cross-sectional view at CC.

[0026] Figure 4 This is a cross-sectional view of another embodiment of the electrochromic anti-glare automobile rearview mirror lens of the present invention.

[0027] Among them, the first substrate 1, the first surface 1a, the second surface 1b, the chamfer 1c, the transparent conductive film layer 11, the shielding layer 12, the second substrate 2, the third surface 2a, the fourth surface 2b, the conductive reflective film layer 21, the first insulating area 21a, the second insulating area 21b, the seal 3, the electrochromic medium 4, the cavity 41, the first conductive clip 51, the second conductive clip 52, the first conductive sheet 61, the second conductive sheet 62, the first double-sided tape 71, the second double-sided tape 72, the first conductive adhesive 81, the second conductive adhesive 82, and the ink layer 9. DETAILED DESCRIPTION

[0028] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0029] In such Figure 1 、 Figure 2 、 Figure 2a 、 Figure 2b and Figure 3In the illustrated embodiment of an electrochromic anti-glare automotive rearview mirror lens, the electrochromic anti-glare automotive rearview mirror lens comprises a first substrate 1, a second substrate 2, a first conductive clip 51, and a second conductive clip 52. The first substrate 1 comprises a first surface 1a and a second surface 1b, with the first surface 1a facing the viewer. A transparent conductive film layer 11 is provided on the second surface 1b of the first substrate 1. The second substrate 2 comprises a third surface 2a and a fourth surface 2b, with the fourth surface 2b facing away from the viewer. The third surface 2a of the second substrate 2 is provided with a conductive reflective film layer 21; the second substrate 2 and the first substrate 1 are arranged in a spaced relationship and define a cavity 41 through a seal 3, and the cavity 41 is filled with an electrochromic medium 4. The electrochromic medium 4 is made of any material in the prior art and will not be described in detail here; the electrochromic medium 4 arranged in the cavity 41 is in contact with the transparent conductive film layer 11 and the conductive reflective film layer 21; the second conductive clip 52 is arranged at the edge of one of the long sides of the second substrate 2, and one end of the second conductive clip 52 extends to the corresponding position of the seal 3. The first conductive clip 51 is disposed at the edge of the other long side of the second substrate 2, with one end extending to the fourth surface 2b of the second substrate 2 and the other end extending to the corresponding position of the seal 3 but not contacting the transparent conductive film layer 11. Instead, it extends to the insulating region of the third surface 2a of the second substrate 2. Along the long side of the second substrate 2 where the second conductive clip 52 is disposed, an insulating film layer is disposed in the outer periphery of the long side corresponding to the second surface 1b of the first substrate 1. The material of the insulating film layer is not particularly limited and can be an inorganic insulating material, an organic insulating material, or an organic-inorganic composite insulating material with insulating properties. In one embodiment, the insulating film layer is an ink layer 9. The provision of the insulating film layer further effectively prevents a short circuit between the first substrate 1 and the second substrate 2 when the electrochromic anti-glare rearview mirror is powered on. The outer perimeter of the second substrate 2 is smaller than that of the first substrate 1, and the second substrate 2 is arranged opposite the first substrate 1. The sealing member 3 is arranged along the outer perimeter of the second substrate 2, and the first substrate 1 and the second substrate 2 are attached to each other by the sealing member 3.

[0030] In another alternative embodiment, Figure 4 As shown, one end of the first conductive clip 51 extends to the fourth surface 2 b of the second substrate 2 , and the other end extends to the corresponding position of the sealing member 3 and contacts the transparent conductive film layer 11 .

[0031] The first substrate 1 and the second substrate 2 can be made of colorless or light-colored transparent glass or transparent polymer material; preferably, colorless transparent glass.

[0032] The transparent conductive film layer 11 can be any functional film layer that is both transparent and conductive in the prior art. The functional film layer can be a single-layer structure or a multi-layer composite structure. For example, ITO or FTO can be used.

[0033] The conductive reflective film layer 21 can be any functional film layer that is both conductive and reflective in the prior art. The functional film layer can be a single-layer structure or a multi-layer composite structure. By adjusting the film material, film system, and thickness, the conductive reflective film layer 21 can be a semi-reflective and semi-transmissive optical film layer or a high-reflectivity optical film layer. By way of example, the conductive reflective film layer 21 can be a composite film layer consisting of a conductive layer and a reflective layer. The conductive layer can be ITO, FTO, a conductive metal, or a metal alloy; the reflective layer can be a metal or a metal oxide, wherein the metal layer is at least one of Ag, Ti, Al, Cr, Ni, Mo, Ru, Rh, Ir, Pd, and Pt, and the metal oxide is at least one of niobium oxide, aluminum oxide, titanium oxide, indium oxide, tin oxide, tantalum oxide, zinc oxide, chromium oxide, copper oxide, manganese oxide, nickel oxide, molybdenum oxide, and iron oxide.

[0034] An annular insulating region is provided in the peripheral area of ​​the third surface 2a of the second substrate 2. This insulating region is divided into a first insulating region 21a and a second insulating region 21b. The first insulating region 21a is the peripheral area of ​​the conductive reflective film layer 21 that is continuously etched, while the second insulating region 21b is the peripheral area of ​​the conductive reflective film layer 21 that is intermittently etched. The length of the second insulating region 21b is greater than the length of the second conductive adhesive 82. The insulating region can be removed by laser, chemical etching, or laser ablation to provide insulation.

[0035] In at least one embodiment, a first conductive adhesive 81 and a second conductive adhesive 82 are disposed along the two long sides of the first substrate 1 near the edges of the second substrate 2. The first conductive adhesive 81 is electrically connected to the transparent conductive film layer 11 and the first conductive clip 51, while the second conductive adhesive 82 is electrically connected to the conductive reflective film layer 21 and the second conductive clip 52. For example, the first conductive adhesive 81 and the second conductive adhesive 82 can be made of conductive adhesive materials such as conductive silver paste or conductive epoxy resin.

[0036] In at least one embodiment, the second substrate 2 is provided with double-sided tape at corresponding positions of the first conductive clip 51 and the second conductive clip 52 , respectively. The double-sided tape is provided on the fourth surface 2 b of the second substrate 2 .

[0037] In at least one embodiment, the second substrate 2 is further provided with a first conductive sheet 61 and a second conductive sheet 62 at corresponding positions of the first conductive clip 51 and the second conductive clip 52, respectively. One end of the first conductive sheet 61 extends to the edge of the second substrate 2, and the other end extends to the fourth surface 2b of the second substrate 2. One end of the second conductive sheet 62 extends to the edge of the second substrate 2, and the other end extends to the fourth surface 2b of the second substrate 2. The first conductive sheet 61 and the second conductive sheet 62 are in contact with the first conductive clip 51 and the second conductive clip 52, respectively. The first conductive sheet 61 and the second conductive sheet 62 can be made of conductive silver mesh or conductive cloth, preferably conductive silver mesh.

[0038] An annular shielding layer 12 is provided in the peripheral area of ​​the second surface 1b of the first substrate 1. The shielding layer 12 is arranged between the second surface 1b of the first substrate 1 and the transparent conductive film layer 11, and the width of the shielding layer 12 along the second surface 1b of the first substrate 1 is greater than or equal to the width of the insulating film layer and the width of the sealing member 3. The shielding layer 12 is a metal layer, or is composed of a metal layer and at least one metal oxide layer. The metal layer is at least one of Ag, Ti, Al, Cr, Ni, Mo, Ru, Rh, Ir, Pd, and Pt, and the metal oxide layer is at least one of niobium oxide, aluminum oxide, titanium oxide, indium oxide, tin oxide, tantalum oxide, zinc oxide, chromium oxide, copper oxide, manganese oxide, nickel oxide, molybdenum oxide, and iron oxide. The shielding layer 12 can be prepared by a physical vapor deposition method such as vacuum evaporation or magnetron sputtering, or a chemical electroplating method. The shielding layer 12, obtained through the aforementioned physical vapor deposition method, conceals the seal 3 and conductive clips disposed on the substrate, thereby enhancing the visual appearance of the rearview mirror lens and assembly. By providing the shielding layer 12, a frameless or narrow-frame rearview mirror can be produced, further expanding the field of view of the electrochromic anti-glare rearview mirror. When the electrochromic anti-glare automotive rearview mirror lens is manufactured as a frameless rearview mirror, the outer edge of the first substrate 1 has a smooth chamfer 1c.

[0039] The electrochromic anti-glare automotive rearview mirror assembly of the present invention can be either an interior rearview mirror assembly or an exterior rearview mirror assembly. In at least one embodiment, the interior rearview mirror assembly includes at least a bracket, a housing, a circuit board, and the aforementioned electrochromic anti-glare automotive rearview mirror lens; the circuit board is electrically connected to the lens.

[0040] In at least one embodiment, the assembly further includes at least one functional module selected from the group consisting of a humidity sensor, an information display, a light sensor, a blind spot light, a turn signal light, a navigation system, a temperature indicator, and a streaming media display. The functional module is disposed correspondingly to part or all of the viewing area of ​​the electrochromic anti-glare rearview mirror lens.

[0041] The electrochromic anti-glare automobile rearview mirror lens and assembly of the utility model have a fast-response electrochromic anti-glare function under the action of an electric field, reduce glare exposure, and provide favorable protection for safe automobile driving.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only illustrate the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention.

Claims

1. An electrochromic anti-glare automobile rearview mirror lens, characterized in that: The lens comprises: A first substrate, the first substrate comprising a first surface and a second surface, the second surface of the first substrate being provided with a transparent conductive film layer; a second substrate, the second substrate comprising a third surface and a fourth surface, the third surface of the second substrate being provided with a conductive reflective film layer; The second substrate and the first substrate are arranged in a spaced relationship and define a cavity through a seal, wherein the cavity is filled with an electrochromic medium; and a second conductive clip, the second conductive clip being disposed at an edge of one of the long sides of the second substrate, one end of the second conductive clip extending to a corresponding position of the seal and contacting the conductive reflective film layer, and the other end extending to the fourth surface of the second substrate; Wherein, along the long side direction of the second substrate where the second conductive clip is set, a corresponding insulating film layer is set on the peripheral area of ​​the second surface of the first substrate corresponding to the long side.

2. The electrochromic anti-glare automobile rearview mirror lens according to claim 1, characterized in that: The insulating film layer is an ink layer.

3. The electrochromic anti-glare automobile rearview mirror lens according to claim 1, characterized in that: The lens also includes a first conductive clip, which is arranged at the edge of the other long side of the second substrate. One end of the first conductive clip extends to the fourth surface of the second substrate, and the other end extends to the corresponding position of the seal and contacts the transparent conductive film layer, or the other end extends to the corresponding position of the seal but does not contact the transparent conductive film layer, but extends to the insulating area of ​​the third surface of the second substrate.

4. The electrochromic anti-glare automobile rearview mirror lens according to claim 1, wherein: An annular insulating region is provided in the peripheral area of ​​the third surface of the second substrate, and the insulating region is divided into a first insulating region and a second insulating region. The first insulating region is a peripheral region where the conductive reflective film layer is continuously etched, and the second insulating region is a peripheral region where the conductive reflective film layer is intermittently etched. The length of the second insulating region is greater than the length of the second conductive glue.

5. The electrochromic anti-glare automobile rearview mirror lens according to claim 1, characterized in that: A first conductive adhesive and a second conductive adhesive are respectively arranged near the edge of the second substrate along the direction in which the two long sides of the first substrate extend; the first conductive adhesive establishes an electrical connection with the transparent conductive film layer and the first conductive clip, and the second conductive adhesive establishes an electrical connection with the conductive reflective film layer and the second conductive clip.

6. The electrochromic anti-glare automobile rearview mirror lens according to claim 1, characterized in that: The second substrate is provided with double-sided tape at corresponding positions of the first conductive clip and the second conductive clip, respectively. The double-sided tape is arranged on the fourth surface of the second substrate.

7. The electrochromic anti-glare automobile rearview mirror lens according to claim 1, wherein: The second substrate is further provided with a first conductive sheet and a second conductive sheet at corresponding positions of the first conductive clip and the second conductive clip, respectively. One end of the first conductive sheet extends to the edge of the second substrate, and the other end extends to the fourth surface of the second substrate. One end of the second conductive sheet extends to the edge of the second substrate, and the other end extends to the fourth surface of the second substrate. The first conductive sheet and the second conductive sheet are in contact with the first conductive clip and the second conductive clip, respectively.

8. The electrochromic anti-glare automobile rearview mirror lens according to claim 1, wherein: An annular shielding layer is provided in the peripheral area of ​​the second surface of the first substrate, and the shielding layer is arranged between the second surface of the first substrate and the transparent conductive film layer. The width of the shielding layer along the second surface of the first substrate is greater than or equal to the width of the insulating film layer and the width of the sealing member.

9. An electrochromic anti-glare automobile rearview mirror assembly, characterized in that: The assembly includes the electrochromic anti-glare automobile rearview mirror lens according to any one of claims 1 to 8.

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