Electric heating automobile glass

By employing a graphene coating and a flexible circuit board electrical connection structure on automotive glass, the problems of uneven heating and fragile circuits in traditional electrically heated glass have been solved, achieving a rapid and uniform electric heating effect and improving driving safety and structural reliability.

CN224205270UActive Publication Date: 2026-05-05SHANDONG HENGBANG GLASS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG HENGBANG GLASS CO LTD
Filing Date
2025-05-26
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Traditional electrically heated glass suffers from problems such as uneven heating, easily damaged wiring, high energy consumption, and lack of thermal insulation design, which affect driving safety.

Method used

The structure employs a graphene coating combined with an electrical connection structure of a flexible circuit board and metal electrodes. Through the design of connection grooves and placement grooves, efficient and uniform electric heating is achieved. Furthermore, the flexible material of the silicone frame and the concealed wiring arrangement enhance the structural reliability and compactness.

Benefits of technology

It achieves rapid and uniform electric heating, reduces the risk of circuit wear, improves driving safety and energy efficiency, and is suitable for standardized production of different vehicle models.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of glass, in particular to electric heating automobile glass which comprises a silica gel outer frame, two symmetrically-arranged placing grooves are formed in the inner wall of the silica gel outer frame, the upper surface and the lower surface of the silica gel outer frame are each provided with a set of square grooves, the inner wall of each set of square grooves is provided with a connecting groove, and the connecting grooves are connected with the silica gel outer frame. The upper surface and the lower surface of the silica gel outer frame are each provided with a set of strip-shaped groove, the graphene coating is coated on the surface of the glass inner layer, an electric connection structure of the flexible circuit board and the metal electrodes is combined, and the efficient and uniform electric heating function can be achieved. The graphene coating has excellent electric conduction and heat conduction performance, and can quickly generate heat after being electrified and uniformly conduct the heat to the first glass outer layer and the second glass outer layer to form a synergistic heating effect of the three layers of glass. According to the design, fog, accumulated snow or frost on the glass surface can be quickly eliminated, the sight definition of a driver is improved, and the driving safety performance is remarkably improved.
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Description

Technical Field

[0001] This utility model relates to the field of glass technology, specifically to an electrically heated automotive glass. Background Technology

[0002] When a car is in motion, the windshield is prone to fogging or frost due to temperature differences, affecting driving safety. Traditional defogging methods rely on air conditioning or heating, which have problems such as slow response and high energy consumption, and are particularly ineffective in low-temperature environments.

[0003] While existing electrically heated glass technologies achieve rapid heating through metal wires or conductive films, they suffer from drawbacks such as uneven heating and fragile circuitry. Metal wire heating is prone to causing localized overheating and cracking of the glass, while ordinary conductive films are inefficient and unreliable. Furthermore, traditional structures lack effective heat insulation, resulting in significant heat loss and reduced energy efficiency. Therefore, we propose an electrically heated automotive glass technology to address these issues. Utility Model Content

[0004] The purpose of this invention is to provide an electrically heated automotive glass to solve the problems mentioned in the background art.

[0005] The technical solution of this utility model is: an electrically heated automotive glass, comprising a silicone frame, two symmetrically arranged placement grooves on the inner wall of the silicone frame, a set of square grooves on both the upper and lower surfaces of the silicone frame, a connecting groove on the inner wall of each set of square grooves, a set of strip grooves on both the upper and lower surfaces of the silicone frame, a first outer glass layer fixedly connected to the inner wall of the silicone frame and the placement grooves, a glass inner layer fixedly connected to the rear side wall of the first outer glass layer, a second outer glass layer fixedly connected to the rear side wall of the glass inner layer, a flexible circuit board fixedly connected to the inner wall of each set of square grooves, a metal electrode electrically connected to the lower surface of each flexible circuit board, and wires provided on the inner wall of each set of strip grooves.

[0006] Preferably, each of the connecting slots is connected to the inner wall of the placement slot.

[0007] Preferably, each of the connecting grooves is electrically connected to the surface of the same inner glass layer.

[0008] Preferably, each group of strip grooves is interconnected with the adjacent square groove.

[0009] Preferably, each of the wires is electrically connected to an adjacent flexible circuit board.

[0010] Preferably, the surface of the inner glass layer is coated with a graphene coating.

[0011] This utility model provides an electrically heated automotive glass with the following improvements and advantages compared to the prior art:

[0012] Firstly, this invention achieves efficient and uniform electric heating by coating the inner surface of the glass with a graphene coating and combining it with an electrical connection structure between a flexible circuit board and metal electrodes. The graphene coating possesses excellent electrical and thermal conductivity, allowing it to rapidly generate heat upon energization and uniformly conduct it to the first and second outer glass layers, creating a synergistic heating effect across the three glass layers. This design can quickly eliminate fog, snow, or frost on the glass surface, improving driver visibility and significantly enhancing driving safety.

[0013] Secondly, this utility model, based on the interconnected design of the connecting groove and placement groove, the square groove, and the electrical connection structure between the wires and the flexible circuit board, achieves integrated and rational circuit layout. The flexible circuit board is embedded in the square groove and electrically connected to the graphene coating of the inner layer of the glass through the connecting groove, avoiding the complex external wiring layout of traditional heated glass, reducing wear and short-circuit risks caused by exposed wiring, and improving the reliability and durability of the overall structure. In addition, the flexible material of the silicone frame can not only buffer the vibration and impact during vehicle operation and protect the internal glass and circuit components, but also achieve concealed wiring through the interconnected structure of the strip groove and the square groove, making the entire glass assembly structure compact, easy to install, and suitable for standardized production and assembly of different vehicle models. Attached Figure Description

[0014] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 This is a front view structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0017] Figure 3 This is a top view of the silicone outer frame of this utility model.

[0018] Figure 4 This is a bottom view of the silicone outer frame of this utility model;

[0019] Figure 5 This is a schematic diagram illustrating the structure of the wire of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Silicone outer frame; 2. Placement groove; 3. Square groove; 4. Connection groove; 5. Strip groove; 6. First glass outer layer; 7. Glass inner layer; 8. Second glass outer layer; 9. Flexible circuit board; 10. Metal electrode; 11. Wire. Detailed Implementation

[0022] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0023] This utility model provides an improved electrically heated automotive glass. The technical solution of this utility model is as follows:

[0024] like Figure 1 - Figure 5 As shown, an electrically heated automotive glass includes a silicone frame 1. Two symmetrically arranged placement grooves 2 are formed on the inner wall of the silicone frame 1. A set of square grooves 3 are formed on both the upper and lower surfaces of the silicone frame 1. A connecting groove 4 is formed on the inner wall of each set of square grooves 3. A set of strip grooves 5 are formed on both the upper and lower surfaces of the silicone frame 1. A first outer glass layer 6 is fixedly connected to the inner wall of the silicone frame 1 and the placement grooves 2. A glass inner layer 7 is fixedly connected to the rear side wall of the first outer glass layer 6. A second outer glass layer 8 is fixedly connected to the rear side wall of the glass inner layer 7. A flexible circuit board 9 is fixedly connected to the inner wall of each set of square grooves 3. A metal electrode 10 is electrically connected to the lower surface of each flexible circuit board 9. An electrical wire 11 is provided on the inner wall of each set of strip grooves 5.

[0025] Furthermore, each connecting slot 4 is connected to the inner wall of the placement slot 2. This structural design enables the components in the placement slot 2 to form a direct physical connection path with the connecting slot 4, facilitating the transmission and interaction of internal circuits, signals, or media, improving the convenience of component installation and the overall compactness of the structure, and providing more flexible spatial layout possibilities for subsequent assembly and functional realization.

[0026] Furthermore, each connecting slot 4 is electrically connected to the surface of the same inner glass layer 7. By uniformly connecting the connecting slots 4 to the inner glass layer 7, a stable conductive network can be constructed, ensuring that the electrical signals between each connecting slot 4 can be efficiently transmitted through the inner glass layer 7, reducing signal loss and interference, improving the conductivity and stability of the overall circuit system, and laying the foundation for the reliable operation of the equipment.

[0027] Furthermore, each set of strip grooves 5 is interconnected with the adjacent square grooves 3. The interconnection design between the strip grooves 5 and the square grooves 3 forms a diverse spatial connection structure, which can effectively enhance the synergistic effect between the structures.

[0028] Furthermore, each wire 11 is electrically connected to an adjacent flexible circuit board 9. The electrical connection between each wire 11 and the flexible circuit board 9 fully utilizes the bendable and foldable characteristics of the flexible circuit board, which can adapt to complex spatial layouts and improve the flexibility and adaptability of circuit connections.

[0029] Furthermore, the surface of the inner glass layer 7 is coated with a graphene coating. The graphene coating on the surface of the inner glass layer 7 has excellent electrical and thermal conductivity. After being coated on the surface of the inner glass layer 7, it can significantly enhance the conductivity of the inner glass layer 7 and improve the transmission speed and stability of electrical signals.

[0030] Working principle: When the vehicle is started and the heating system is activated, the current is transmitted through the wire 11 to the flexible circuit board 9 embedded in the square groove 3 of the silicone outer frame 1. The flexible circuit board 9, as the core control unit, distributes the electrical energy evenly to each metal electrode 10. The metal electrodes 10 form a stable electrical connection with the graphene coating on the surface of the inner glass layer 7, ensuring that the current is evenly distributed on the coating surface.

[0031] The foregoing description enables those skilled in the art to implement or use this 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 this invention. Therefore, this 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. An electrically heated automotive glass, comprising a silicone outer frame (1), characterized in that: The inner wall of the silicone frame (1) has two symmetrically arranged placement slots (2). The upper and lower surfaces of the silicone frame (1) are provided with a set of square slots (3). The inner wall of each set of square slots (3) is provided with a connecting slot (4). The upper and lower surfaces of the silicone frame (1) are provided with a set of strip slots (5). The inner wall of the silicone frame (1) and the placement slots (2) is fixedly connected to a first glass outer layer (6). The rear side wall of the first glass outer layer (6) is fixedly connected to a glass inner layer (7). The rear side wall of the glass inner layer (7) is fixedly connected to a second glass outer layer (8). The inner wall of each set of square slots (3) is fixedly connected to a flexible circuit board (9). The lower surface of each flexible circuit board (9) is electrically connected to a metal electrode (10). The inner wall of each set of strip slots (5) is provided with a wire (11).

2. The electrically heated automotive glass according to claim 1, characterized in that: Each of the connecting grooves (4) is connected to the inner wall of the placement groove (2).

3. The electrically heated automotive glass according to claim 1, characterized in that: Each of the connecting grooves (4) is electrically connected to the surface of the same glass inner layer (7).

4. The electrically heated automotive glass according to claim 1, characterized in that: Each of the strip grooves (5) is connected to the adjacent square groove (3).

5. The electrically heated automotive glass according to claim 1, characterized in that: Each of the wires (11) is electrically connected to the adjacent flexible circuit board (9).

6. The electrically heated automotive glass according to claim 1, characterized in that: The surface of the inner glass layer (7) is coated with a graphene coating.