Screwless simplified assembly structure of vehicle-mounted central control screen

Abstract

The utility model discloses a screw-free simplified assembly structure design of a vehicle-mounted central control screen. The screw-free simplified assembly structure design comprises a display screen assembly, a polyurethane hot melt adhesive, a backlight source assembly, a printed circuit board, a double-sided conductive rubber mat and a magnesium alloy rear shell, wherein the display screen assembly comprises a glass cover plate, sheet optical cement and a display screen, the glass cover plate and the display screen are connected together after being activated by UV of the sheet optical cement to form the display screen assembly, and the display screen integrates display and touch functions; wherein the double-sided foam is attached to the periphery of the aluminum plate rear shell, is square and has the dustproof, waterproof and light leakage prevention effects, and meanwhile, the backlight source assembly is fixed to the rear face of the glass cover plate through the double-sided foam, so that the display and backlight assembly is formed. Two screw columns are riveted on the north side of the aluminum plate rear shell and used for assembling and positioning the printed circuit board, and meanwhile, two double-sided conductive rubber pads are pasted on the back side of the aluminum plate rear shell to support the printed circuit board and play a conductive role, so that static electricity generated by an external touch display screen is quickly conducted away.

Description

Technical Field

[0001] This invention relates to the field of vehicle display technology, specifically to a simplified screwless assembly structure for a vehicle central control screen. Background Technology

[0002] As consumers demand larger screens and superior visual experiences, in-vehicle displays are increasingly adopting narrow bezel designs. Narrow bezels not only make the screen look more modern and premium, but also provide a wider field of view, enhancing the driving experience. They offer a larger viewing area, optimize the display's appearance, and improve the usability and user experience of in-vehicle displays. By reducing bezel width, the display can provide more screen space, making information presentation richer and more intuitive.

[0003] Meanwhile, in the automotive industry, automation is gradually replacing manual labor in the assembly of parts. Automated assembly can efficiently and accurately complete the assembly and manufacturing of various automotive parts in a short time. The core of this production line is robots and automated equipment, which can replace manual labor in repetitive, high-intensity, and high-precision tasks, thereby significantly improving production efficiency and quality.

[0004] The application of automated assembly lines in automobile manufacturing offers numerous advantages. First, highly flexible automated assembly lines can be adjusted to meet varying product demands, quickly switching between production of different automotive parts, satisfying the automotive industry's need for diverse and customized products. Second, the precision and stability of automated equipment far surpass that of manual operation, effectively ensuring product quality and reducing assembly errors and defect rates caused by human factors. Furthermore, automated assembly lines enable high-speed production, significantly shortening production cycles, increasing capacity, and reducing production costs.

[0005] Automated assembly has also placed new demands and concepts on product design, requiring designs to meet the needs of automated production and assembly, and to refine the assembly sequence of products. Traditional product structure designs can no longer meet the new requirements of automated assembly.

[0006] Therefore, it is necessary to propose a simplified assembly structure for in-vehicle central control screen without screws. Utility Model Content

[0007] To address the problems existing in the prior art, this utility model provides a simplified screwless assembly structure for vehicle central control screens, thereby solving the aforementioned technical problems.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a simplified screwless assembly structure for a vehicle central control screen, comprising a display screen assembly, polyurethane hot melt adhesive, a backlight assembly, a printed circuit board, double-sided conductive pads, positioning posts, and a magnesium alloy back shell arranged sequentially from front to back; the display screen assembly is connected to the backlight assembly via double-sided foam, and after assembly, the display screen assembly and the backlight assembly are respectively fixed inside the magnesium alloy back shell by polyurethane hot melt adhesive, and the polyurethane hot melt adhesive is automatically applied around the display screen assembly; the backlight assembly includes an LED light board, a light guide plate, and an aluminum plate back shell, the front of the aluminum plate back shell is configured as a light guide plate, two positioning posts are riveted to the back of the aluminum plate back shell, the printed circuit board is mounted on the aluminum plate back shell via the positioning posts, and the printed circuit board is bonded to the aluminum plate back shell via double-sided conductive pads; the LED light board is configured below the aluminum plate back shell.

[0009] Specifically, two double-sided conductive pads are attached to the back of the aluminum plate back cover to support the printed circuit board (PCB) and also to conduct electricity, quickly dissipating static electricity generated by external touch of the display screen. After the PCB is mounted on the aluminum plate back cover, it is fixed to the magnesium alloy back cover by polyurethane hot melt adhesive around the glass cover. The PCB is sandwiched between the magnesium alloy back cover and the aluminum plate back cover to ensure its strength and conductivity. The magnesium alloy back cover has an integrated die-cast mounting structure. During the entire assembly process, only the ribbon cables on the display module require manual assembly onto the PCB; the rest is automated, including automated assembly of the PCB, automated application of polyurethane hot melt adhesive, and automated assembly of the magnesium alloy back cover. Furthermore, the entire product adopts a screwless design, greatly improving production automation.

[0010] Preferably, the display assembly includes: a glass cover, a sheet optical adhesive, and a display screen, wherein the glass cover is connected to the display screen via the sheet optical adhesive to form the display assembly.

[0011] Preferably, the aluminum plate back cover is formed by stamping, with two positioning posts riveted to the back; the magnesium alloy back cover is formed by die casting, surface spraying, and integrated installation structure using a magnesium alloy semi-solid forming process.

[0012] Preferably, the backlight assembly is connected to the glass cover plate in the display assembly via double-sided foam. The double-sided foam is attached to the four sides of the aluminum plate back cover in a U-shape, which has the functions of dustproof, waterproof and light-proof.

[0013] Preferably, the glass cover material is soda-lime glass, and a layer of 3A optical film is optically attached to the surface.

[0014] Preferably, the printed circuit board adopts a screwless structure sandwiched between the aluminum plate back cover and the magnesium alloy back cover, with the back of the printed circuit board supported by the magnesium alloy back cover.

[0015] In summary, this utility model provides a simplified screwless assembly structure for in-vehicle central control screens. The beneficial effects of this utility model are:

[0016] 1. The display component of this patent is fixed to the inside of the magnesium alloy back shell by polyurethane hot melt adhesive around its perimeter, which provides a strong fixation. At the same time, the printed circuit board is fixed by a screwless installation method, which is sandwiched between the aluminum plate back shell and the magnesium alloy back shell and fixed to the back of the aluminum plate back shell by double-sided conductive pads. This not only provides a buffering and shock absorption function, but also quickly conducts away the static electricity generated by external touch screen.

[0017] 2. This patented back cover is made of magnesium alloy semi-solid die casting and is also spray-painted as an appearance component. Traditional floating screen back covers are made of spray-painted plastic, but this cannot meet the technical requirements of narrow bezels and has problems such as uneven gaps with the glass cover and cracking of the glass cover due to pressure. This patented back cover uses magnesium alloy spraying, which, while ensuring the overall strength of the product, integrates the mounting bracket with the magnesium alloy back cover, reducing mold costs and assembly steps; at the same time, the magnesium alloy semi-solid die casting and spraying as an appearance component can fully meet customer appearance requirements and is widely used in the narrow bezel structure design of automotive center console and instrument panel floating screens. Through this patent, lightweight, integrated design, and simple overall assembly are achieved while meeting the customer's strict experimental requirements, improving production efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the display screen assembly of this utility model;

[0020] Figure 3 This is a schematic diagram of the backlight assembly of this utility model.

[0021] Figure 4 This is a schematic diagram of the printed circuit board fixing of this utility model;

[0022] In the diagram: 1. Display screen assembly; 2. Polyurethane hot melt adhesive; 3. Backlight assembly; 4. Printed circuit board; 5. Double-sided conductive pad; 6. Positioning post; 7. Magnesium alloy back cover; 8. Glass cover plate; 9. Sheet optical adhesive; 10. Display screen; 11. LED light board; 12. Double-sided foam; 13. Light guide plate; 14. Aluminum plate back cover. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] like Figures 1 to 4 As shown:

[0025] This utility model provides a technical solution: a simplified screwless assembly structure design for a vehicle-mounted central control screen, including a display screen assembly 1, polyurethane hot melt adhesive 2, a backlight assembly 3, a printed circuit board 4, double-sided conductive pads 5, positioning posts 6, and a magnesium alloy back cover 7; wherein the display screen assembly 1 includes: a glass cover plate 8, a sheet optical adhesive 9, and a display screen 10; the backlight assembly 3 includes: an LED light board 11, double-sided foam 12, a light guide plate 13, and an aluminum plate back cover 14. The front of the aluminum plate back cover 14 is configured as the light guide plate 13, and two positioning posts 6 are riveted to the back of the aluminum plate back cover 14. The glass cover plate 8 is made of soda-lime glass, and a layer of 3A optical film is optically coated on the surface, which has the functions of anti-reflection, anti-fingerprint, and anti-glare, and also has an explosion-proof function to meet the head-impact regulations for vehicle-mounted displays. The display screen 10 has display and touch functions, which can reduce a touch screen component and achieve the effects of integration and lightweighting.

[0026] Reference embodiment: The glass cover plate 8 is connected to the display screen 10 via sheet optical adhesive 9 to form the display screen assembly 1. The sheet optical adhesive 9 has the characteristics of rapid UV activation and curing, high transmittance, high bonding strength, and practical light, and is widely used in the automotive and industrial display screen fields.

[0027] In the reference embodiment, the printed circuit board 4 is bonded to the aluminum back cover 14 on the back of the backlight assembly 3 via double-sided conductive adhesive pads 5. The aluminum back cover 14 is formed by stamping and has good thermal conductivity, enabling it to quickly dissipate the heat from the LED light board 11. The printed circuit board 4 is sandwiched between the aluminum back cover 14 and the magnesium alloy back cover 7 without screws, facilitating assembly and disassembly.

[0028] Reference embodiment: The glass cover plate 8 in the display assembly 1 is connected to the backlight assembly 3 through double-sided foam 12, thereby forming a display assembly.

[0029] Reference embodiment: After assembly, the display assembly 1 and backlight assembly 3 are fixed to the inside of the magnesium alloy back cover 7 using polyurethane hot melt adhesive 2. The polyurethane hot melt adhesive 2 is automatically dispensed around the glass cover plate 8. The use of automated dispensing equipment allows for a narrow bezel design. The entire display screen achieves screwless assembly.

[0030] Reference embodiment: The magnesium alloy back cover 7 serves as the back cover of the display screen, increasing the strength of the display screen and also acting as an exterior component for painting. Furthermore, the mounting bracket can be integrally die-cast with the magnesium alloy back cover 7, saving on parts. The magnesium alloy back cover 7 replaces the traditional plastic back cover, increasing the overall strength of the display screen, reducing vibration and noise, improving display performance, and achieving lightweight and fewer parts.

[0031] The embodiments described in this utility model are for illustrative purposes only and do not constitute a limitation on the scope of the claims. Other substantially equivalent substitutions that can be conceived by those skilled in the art are all within the protection scope of this utility model.

Claims

1. A screwless simple assembly structure of an in-vehicle center control screen, characterized by, It includes display screen assembly (1), polyurethane hot melt adhesive (2), backlight assembly (3), printed circuit board (4), double-sided conductive rubber pad (5), positioning column (6) and magnesium alloy back shell (7) arranged in front to back; display screen assembly (1) is connected with backlight assembly (3) through double-sided foam (12), display screen assembly (1) and backlight assembly (3) are assembled and fixed in magnesium alloy back shell (7) respectively through polyurethane hot melt adhesive (2), and polyurethane hot melt adhesive (2) is automatically glued around display screen assembly (1), backlight assembly (3) includes LED lamp plate (11), light guide plate (13) and aluminum plate back shell (14), the front of aluminum plate back shell (14) is provided with light guide plate (13), two positioning columns (6) are riveted on the back of aluminum plate back shell (14), printed circuit board (4) is installed on aluminum plate back shell (14) through positioning column (6), printed circuit board (4) is bonded on aluminum plate back shell (14) through double-sided conductive rubber pad (5), and LED lamp plate (11) is arranged below aluminum plate back shell (14).

2. The screw-free simple assembly structure of a car-mounted central control screen according to claim 1, characterized in that: The display screen assembly (1) comprises a glass cover plate (8), a sheet optical adhesive (9) and a display screen (10), the glass cover plate (8) is connected with the display screen (10) through the sheet optical adhesive (9), forming the display screen assembly (1).

3. The screwless simple assembly structure of a car-mounted central control screen according to claim 1, characterized in that: The aluminum plate back shell (14) is formed by stamping process, and two positioning columns (6) are riveted on the back; the magnesium alloy back shell (7) is integrally formed by magnesium alloy semi-solid forming process, die casting process, surface spraying and mounting structure.

4. The screw-free simple assembly structure of a car-mounted central control screen according to claim 2, characterized in that: The backlight assembly (3) is connected with the glass cover plate (8) in the display screen assembly (1) through the double-sided foam (12).

5. The screwless simple assembly structure of a car-mounted central control screen according to claim 2, characterized in that: The glass cover plate (8) is made of sodium calcium glass, and a layer of 3A optical film material is attached to the surface of the glass cover plate (8).

6. The screwless simple assembly structure of a car-mounted central control screen according to claim 1, characterized in that: The printed circuit board (4) is clamped between the aluminum plate back shell (14) and the magnesium alloy back shell (7) without screws, and the back of the printed circuit board (4) is pressed against the magnesium alloy back shell (7).

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