A microcode structure with high precision on the side of EC glass

Abstract

The utility model provides a kind of high precision microcode structure on the side of EC glass, including the microgroove group that is processed on the side of EC glass by ultra-short pulse laser, the microgroove group includes the microgroove of sequentially arranged multiple, the overall lateral width of the microgroove group is less than 3mm, the overall vertical width of the microgroove group is less than 0.8mm, the depth of any microgroove is less than 0.06mm, and the groove width of any microgroove is less than 0.06mm.The utility model has the advantages of: by ultra-short pulse laser, mark code is engraved on the side wall of glass, which can avoid interfering with the function of the upper and lower surfaces of the glass, while serving as an identifier, enabling the identification of each glass;The microgroove group occupies a small area and can be placed on the thin wall of the glass, enabling the function of glass side wall labeling, with good use effect.

Description

Technical Field

[0001] This utility model relates to the field of automotive rearview mirror manufacturing technology, and in particular to a high-precision micro-code structure on the side of EC glass. Background Technology

[0002] To identify each piece of glass, an identification code needs to be attached to it. However, attaching identification codes to the functional surfaces of EC glass would interfere with its normal use. Therefore, identifying the glass by marking the sides is considered. But EC glass typically has very narrow sides, often only a few millimeters thick, and is usually made of hard material, requiring high precision without compromising its strength and sealing. Traditional methods, such as inkjet printing and mechanical engraving, are insufficient in terms of miniaturization, precision, durability, and impact on the substrate. Therefore, existing marking methods require further improvement. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a high-precision microcode structure on the side of EC glass that can meet the marking requirements without affecting the normal use of the glass and has a good performance, in light of the above-mentioned existing technology.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: the high-precision micro-code structure on the side of the EC glass is characterized by: including a micro-groove group processed on the side of the EC glass by an ultra-short pulse laser, the micro-groove group including a plurality of micro-grooves arranged in sequence, the overall horizontal width of the micro-groove group is less than 3mm, the overall vertical width of the micro-groove group is less than 0.8mm, the depth of any micro-groove is less than 0.06mm, and the width of any micro-groove is less than 0.06mm.

[0005] As an improvement, the surface of the microchannel assembly may preferably be covered with a protective layer, thereby extending the service life of the microchannel assembly.

[0006] As a further improvement, the protective layer may preferably be a fluorosilicone nano-coating sprayed onto the surface of the microgroove.

[0007] As an improvement, the top view of the micro-groove assembly can preferably be displayed as a barcode, character code, or QR code.

[0008] As an improvement, the depth of any micro-groove is preferably 0.05 mm, and the width of any micro-groove is preferably 0.03 mm.

[0009] Further improvements include the provision that the ultrashort pulse laser is preferably a laser emitted by a laser source with a single pulse energy of 200–320 μJ, a scanning speed of 120–150 mm / s, a repetition frequency of 0.4–0.8 MHz, and a pulse width of less than 10 ps, ​​and that the laser spot diameter is 0.02–0.03 mm. Lasers within this range can meet processing requirements while avoiding damage to the glass.

[0010] As an improvement, the EC glass can preferably be the upper glass of a car rearview mirror, the upper glass having a thickness of 1.6mm, and the micro-grooves located on the short sidewall of the upper glass. The sidewall of the upper glass remains on the outer side of the overall structure after being connected to the lower glass, facilitating identification.

[0011] A further improvement is that a transparent conductive film can preferably be deposited on the bottom surface of the upper glass layer, and the micro-grooves are disposed on the sidewall of the upper glass layer with the transparent conductive film deposited on it. The contact between the micro-grooves and the transparent conductive film does not significantly affect the light transmission or conductivity of the upper glass layer; therefore, the micro-grooves can be fabricated after the transparent conductive film is processed on the upper glass layer.

[0012] In a further improvement, the upper glass layer can preferably be curved glass, and the micro-groove processing surface of the curved glass is a flat surface formed by cutting. This facilitates the processing of the micro-groove assembly.

[0013] In a further improvement, the bottom surface of the upper glass can preferably be connected to the lower glass via an annular sealant, and the upper glass, sealant and lower glass form a cavity that can be filled with electrochromic liquid, and a reflective layer is provided on the top surface of the lower glass.

[0014] Compared with the prior art, the advantages of this utility model are as follows: the identification code is engraved on the side wall of the glass by ultra-short pulse laser, which can avoid hindering the functional use of the upper and lower surfaces of the glass, while playing an identification role and realizing the identification of each piece of glass; the micro-groove group occupies a small area, can be set on the thin wall of the glass, realizes the function of marking the side wall of the glass, and has a good use effect. Attached Figure Description

[0015] Figure 1 This is a perspective view of an embodiment of the present utility model;

[0016] Figure 2 yes Figure 1 A three-dimensional view from another angle;

[0017] Figure 3 This is a schematic diagram of the structure of this utility model applied to a car rearview mirror according to an embodiment;

[0018] Figure 4 yes Figure 2 Enlarged view of section I. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0020] like Figures 1 to 4 As shown, the high-precision microcode structure on the side of the EC glass in this embodiment includes a microgroove group 12 processed on the side of the EC glass by an ultra-short pulse laser. The microgroove group 12 includes a plurality of microgrooves arranged in sequence. The overall horizontal width of the microgroove group 12 is less than 3 mm, the overall vertical width of the microgroove group 12 is less than 0.8 mm, the depth of any microgroove is less than 0.06 mm, and the width of any microgroove is less than 0.06 mm.

[0021] A protective layer 13 covers the surface of the micro-groove assembly 12. The protective layer 13 is a fluorosilicone nano-coating sprayed onto the surface of the micro-groove. Fluorosilicone nano-coating is an existing material, and the specific steps of spraying the fluorosilicone nano-coating onto the surface of the micro-groove are existing technology, so they will not be described in detail here.

[0022] The top view of the microgroove group 12 is displayed as a barcode, character code, or QR code. The depth of any microgroove is 0.05 mm, and the width of any microgroove is 0.03 mm. The ultrashort pulse laser is a laser emitted by a laser source with a single pulse energy of 200–320 μJ, a scanning speed of 120–150 mm / s, a repetition frequency of 0.4–0.8 MHz, and a pulse width of less than 10 ps. The laser spot diameter is 0.02–0.03 mm. The laser source is prior art, and the specific steps of cutting glass with the laser are also prior art.

[0023] The EC glass is the upper glass 1 of the car rearview mirror, and the thickness of the upper glass 1 is 1.6 mm. The micro-groove assembly 12 is located on the short side wall of the upper glass 1. A transparent conductive film 11 is coated on the bottom surface of the upper glass 1, and the micro-groove assembly 12 is disposed on the side wall of the upper glass 1 coated with the transparent conductive film 11. The upper glass 1 is curved glass, and the processing surface of the micro-groove assembly of the curved glass is a flat surface formed by cutting. The bottom surface of the upper glass 1 is connected to the lower glass 2 by an annular sealant 3. The upper glass 1, the sealant 3, and the lower glass 2 form a cavity 4 that can be filled with electrochromic liquid. A reflective layer 21 is provided on the top surface of the lower glass 2. After the upper glass 1 and the lower glass 2 are connected, a positive electrode 51 is connected to one end, and a negative electrode 52 is connected to the other end.

Claims

1. A high-precision microcode structure on the side of EC glass, characterized in that: The micro-groove group (12) is processed on the side of EC glass by an ultra-short pulse laser. The micro-groove group (12) includes a plurality of micro-grooves arranged in sequence. The overall horizontal width of the micro-groove group (12) is less than 3 mm, the overall vertical width of the micro-groove group (12) is less than 0.8 mm, the depth of any micro-groove is less than 0.06 mm, and the width of any micro-groove is less than 0.06 mm.

2. The microcode structure of claim 1, wherein: A protective layer (13) is provided on the surface of the micro-groove assembly (12).

3. The microcode structure of claim 2, wherein: The protective layer (13) is a fluorosilicone nano-coating sprayed onto the surface of the micro-groove.

4. The microcode structure according to any one of claims 1 to 3, characterized in that: The top view of the micro-groove group (12) is displayed as a barcode, character code, or QR code.

5. The microcode structure of any of claims 1 to 3, wherein: The depth of any micro-groove is 0.05 mm, and the width of any micro-groove is 0.03 mm.

6. The microcode structure of claim 5, wherein: The ultrashort pulse laser is a laser emitted by a laser source with a single pulse energy of 200–320 μJ, a scanning speed of 120–150 mm / s, a repetition frequency of 0.4–0.8 MHz, and a pulse width of less than 10 ps. The laser spot diameter is 0.02–0.03 mm.

7. The microcode structure of any of claims 1 to 3, wherein: The EC glass is the upper glass (1) of the car rearview mirror. The thickness of the upper glass (1) is 1.6 mm. The micro-groove group (12) is located on the short side wall of the upper glass (1).

8. The microcode structure according to claim 7, characterized in that: A transparent conductive film (11) is deposited on the bottom surface of the upper glass (1), and the micro-groove group (12) is disposed on the side wall of the upper glass (1) with the transparent conductive film (11) deposited on it.

9. The microcode structure according to claim 7, characterized in that: The upper glass (1) is curved glass, and the micro-groove processing surface of the curved glass is a plane formed by cutting.

10. The microcode structure according to claim 8, characterized in that: The bottom surface of the upper glass (1) is connected to the lower glass (2) by an annular sealant (3). The upper glass (1), sealant (3) and lower glass (2) form a cavity (4) that can be filled with electrochromic liquid. A reflective layer (21) is provided on the top surface of the lower glass (2).

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