Electrode installation structure of automobile reflective mirror

Abstract

An electrode installation structure of an automobile reflector comprises an electrode plate and a reflector body of a three-layer structure, the electrode plate is connected to glass of the reflector body, the electrode plate comprises a bent section, the electrode plate is buckled on the side wall of the glass through the bent section, a plurality of notches are distributed in the bent section at intervals, and the bent section is connected with the reflector body. Any notch is filled with conductive adhesive, and the electrode plates and the corresponding glass are connected together through the conductive adhesive. Compared with the prior art, the reflective mirror has the advantages that the gaps distributed at intervals are formed in the electrode plate, so that the contact area between the electrode plate and the conductive adhesive can be increased, the electrode plate and the reflective mirror body are firmly bonded together through the conductive adhesive, the bonding is firm, and the use effect is good; meanwhile, the gaps are distributed at intervals, so that the width of each part of the electrode plate can be kept, extremely narrow parts are avoided, the shape keeping capability of the electrode plate is high, the deformation probability of the electrode plate is reduced, and the shape keeping effect of the electrode plate is good.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile reflectors, in particular to an electrode mounting structure of an automobile reflector. Background Art

[0002] Current automatic anti-glare rearview mirrors use a sandwich structure, consisting of two pieces of heat-bent glass that are coated and bonded together, vacuum-injected with electrochromic liquid, sealed, and aged. A 1.2V DC voltage is applied to the product via positive and negative electrodes. Electrochromic devices are connected to a DC voltage via electrodes, which flows into the conductive film layers of the upper and lower pieces. The electrochromic liquid then flows into the negative electrode, forming a circuit and causing the product to change color. Electrodes are typically stamped from copper foil. The positive and negative electrode sheets are attached to the edges of the lower glass and then adhered to the glass surface with double-sided tape. After the upper and lower glass pieces are bonded and cured, conductive glue is applied to the sides of the two pieces of glass. After high-temperature curing, the electrodes and the two pieces of glass are tightly bonded together.

[0003] After curing, the conductive glue easily delaminates from the electrode surface and is not very strong. If a rectangular notch is added to the side of the electrode to increase the amount of conductive glue flowing in, the electrode sheet and the glass will have a good bonding effect, but the electrode sheet is easily deformed, so the structure of the electrode continues to be optimized.

[0004] There was originally a Chinese utility model patent with the patent number CN202021041616.0 and the name "An Electrode Structure in an Anti-Dazzling Rearview Mirror", which disclosed an electrode structure in an anti-dazzling rearview mirror, including anti-dazzling glass and an electrode. The electrode includes a conductive base layer and a conductive surface layer that can improve the conductivity of the conductive base layer. It is characterized in that: the conductive base layer is a copper layer with a thickness of 60 to 80 microns, and the conductive surface layer is a nickel layer plated on the surface of the copper layer and is rust-proof and corrosion-resistant. The thickness of the nickel layer is greater than 0.1 nanometers and less than 100 nanometers. The advantage of this utility model is that it improves the electrode plating process, which not only greatly improves the corrosion resistance of the electrode, but also increases its service life. It is preferred to plate a tin layer on the nickel layer to further improve the corrosion resistance. At the same time, nickel acts as a connector, allowing the tin layer to adhere tightly to the electrode surface, while blocking the copper ions of the substrate from penetrating into the tin layer, inhibiting the formation of intermetallic compounds, and maintaining the stability of the electrode shape. However, this electrode structure does not solve the technical problems in the prior art that the electrode and the conductive adhesive surface are easily delaminated and the connection is not firm. If a rectangular notch is added, the electrode sheet is easily deformed. Therefore, the structure of the device needs further improvement. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an electrode mounting structure for a car reflector in which an electrode sheet is firmly connected to a reflector body in response to the above-mentioned existing technical status.

[0006] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: the electrode mounting structure of the automobile reflector includes an electrode sheet and a three-layer reflector body, and the electrode sheet is connected to the glass of the reflector body. It is characterized in that: the electrode sheet includes a bending section, and the electrode sheet is snapped onto the side wall of the glass through the bending section. A plurality of notches are spaced apart on the bending section, and any notch is filled with conductive glue, which connects the electrode sheet to the corresponding glass.

[0007] As an improvement, the electrode sheet may preferably include a main sheet body, an extension portion and a folded edge, the main sheet body and the folded edge are connected together via the extension portion, the bending section is an L-shaped structure composed of the extension portion and the folded edge, the main sheet body and the folded edge are respectively fitted with the end faces of the corresponding glass, and the extension portion is fitted with the side walls of the corresponding glass, and the notches are distributed on the extension portion.

[0008] As a further improvement, the notch may preferably be a circular notch.

[0009] As a further improvement, the top projection of the circular notch may preferably be an incomplete circle, and the straight edge of the incomplete circle corresponds to the position where the folded edge is set.

[0010] As an improvement, the width of the main panel may preferably be greater than the widths of the extension portion and the folded edge.

[0011] As an improvement, auxiliary circular holes may preferably be provided at intervals on the main sheet body near the extension portion.

[0012] As an improvement, the electrode sheet may preferably be a copper sheet, and a nickel layer may preferably be electroplated on the surface of the copper sheet.

[0013] As a further improvement, the thickness of the nickel layer may preferably be 1 to 4 microns.

[0014] As an improvement, the reflector body may preferably include an upper layer of glass, a middle layer of electrochromic liquid surrounded by a frame glue, and a lower layer of glass, and the electrode sheet is connected to the lower layer of glass.

[0015] As a further improvement, there are two electrode sheets, one electrode sheet is a positive electrode sheet, which is connected to the conductive film layer of the upper glass, and the other electrode sheet is a negative electrode sheet, which is connected to the conductive film layer of the lower glass.

[0016] Compared with the prior art, the advantages of the present invention are that: the notches are arranged at intervals on the electrode sheet, which can increase the contact area with the conductive glue, so that the conductive glue can firmly bond the electrode sheet and the reflector body together, with strong bonding and good use effect; at the same time, the notches are spaced apart, which can maintain the width of the electrode sheet at various locations, avoid extremely narrow areas, and have a strong ability to maintain the shape of the electrode sheet, thereby reducing the probability of deformation of the electrode sheet and achieving a good shape-retention effect of the electrode sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0018] Figure 2 for Figure 1 A three-dimensional image of the middle electrode sheet;

[0019] Figure 3 yes Figure 2 A three-dimensional image from another angle. DETAILED DESCRIPTION

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

[0021] like Figures 1 to 3 As shown, the electrode mounting structure for an automotive reflector of this embodiment includes an electrode sheet 6 and a three-layer reflector body. The electrode sheet 6 is connected to the glass of the reflector body. The electrode sheet includes a bent section, through which the electrode sheet 6 snaps onto the side wall of the glass. Multiple notches 64 are spaced apart in the bent section, each of which is filled with conductive adhesive 5, which connects the electrode sheet 6 to the corresponding glass. The electrode sheet 6 includes a main sheet 61, an extension 62, and a folded edge 63. The main sheet 61 and folded edge 63 are connected together by the extension 62. The bent section, i.e., the extension 62 and folded edge 63, form an L-shaped structure. The main sheet 61 and folded edge 63 respectively mate with the end face of the corresponding glass, while the extension 62 mates with the side wall of the corresponding glass. The notches 64 are distributed on the extension 62. The notches 64 are circular. The circular notch is projected as an incomplete circle when viewed from above, and the straight edge of the incomplete circle corresponds to the location of the folded edge 63. The width of the main plate 61 is greater than the width of the extension 62 and the folded edge 63. Auxiliary circular holes 65 are spaced apart on the main plate 61 near the extension 62.

[0022] The electrode sheet 6 is a copper sheet with a nickel layer electroplated on its surface. The thickness of the nickel layer is 1 to 4 microns. The reflector body includes an upper layer of glass 1, a middle layer composed of an electrochromic liquid 3 surrounded by a frame glue 4, and a lower layer of glass 2. The electrode sheet 6 is connected to the lower layer of glass 2. There are two electrode sheets 6, one electrode sheet 6 is a positive electrode sheet, which is connected to the conductive film layer 11 of the upper layer of glass, and the other electrode sheet 6 is a negative electrode sheet, which is connected to the conductive film layer 21 of the lower layer of glass. The conductive film layer 11 of the upper layer of glass is an ITO film layer, and the conductive film layer 21 of the lower layer of glass is a metal film layer.

[0023] Working Principle: The ITO film layer is connected to the positive electrode via conductive adhesive, while the metal film layer is also connected to the negative electrode via conductive adhesive. Both layers are electrically connected via an electrochromic liquid, thereby controlling the color change of the electrochromic liquid. Notches are provided in the electrode sheets to reduce weight, maintain the necessary width at each location, prevent deformation, and ensure sufficient contact with the conductive adhesive, improving product quality.

Claims

1. An electrode mounting structure for an automobile reflector, comprising an electrode sheet (6) and a reflector body with a three-layer structure, wherein the electrode sheet (6) is connected to the glass of the reflector body, and is characterized in that: The electrode sheet comprises a bending section, the electrode sheet (6) is snapped onto the side wall of the glass via the bending section, a plurality of notches (64) are spaced apart on the bending section, and any notch (64) is filled with a conductive adhesive (5), and the conductive adhesive (5) connects the electrode sheet (6) to the corresponding glass.

2. The electrode mounting structure according to claim 1, wherein: The electrode sheet (6) comprises a main sheet body (61), an extension portion (62) and a folded edge (63); the main sheet body (61) and the folded edge (63) are connected together via the extension portion (62); the bending section, i.e., the extension portion (62) and the folded edge (63), form an L-shaped structure; the main sheet body (61) and the folded edge (63) are respectively fitted with the end faces of the corresponding glass, while the extension portion (62) is fitted with the side wall of the corresponding glass; and the notches (64) are distributed on the extension portion (62).

3. The electrode mounting structure according to claim 2, wherein: The notch (64) is a circular notch.

4. The electrode mounting structure according to claim 3, characterized in that: The top projection of the circular notch is an incomplete circle, and the straight side of the incomplete circle corresponds to the setting position of the folding edge (63).

5. The electrode mounting structure according to any one of claims 2 to 4, characterized in that: The width of the main sheet (61) is greater than the width of the extension portion (62) and the folded edge (63).

6. The electrode mounting structure according to any one of claims 1 to 4, characterized in that: Auxiliary circular holes (65) are arranged at intervals on the main plate body (61) at positions close to the extension portion (62).

7. The electrode mounting structure according to any one of claims 1 to 4, characterized in that: The electrode sheet (6) is a copper sheet, and a nickel layer is electroplated on the surface of the copper sheet.

8. The electrode mounting structure according to claim 7, characterized in that: The thickness of the nickel layer is 1 to 4 microns.

9. The electrode mounting structure according to any one of claims 1 to 4, characterized in that: The reflector body comprises an upper layer of glass (1), a middle layer of electrochromic liquid (3) surrounded by a frame glue (4), and a lower layer of glass (2), wherein the electrode sheet (6) is connected to the lower layer of glass (2).

10. The electrode mounting structure according to claim 9, characterized in that: There are two electrode sheets (6), one electrode sheet (6) is a positive electrode sheet, and the positive electrode sheet is connected to the conductive film layer (11) of the upper glass layer, and the other electrode sheet (6) is a negative electrode sheet, and the negative electrode sheet is connected to the conductive film layer (21) of the lower glass layer.

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