High-compatibility printed circuit board

Abstract

The utility model discloses a high-compatibility printed circuit board in the technical field of vehicle-mounted central control display, which comprises a glass cover plate, an optical film, a display screen, structural adhesive, a backlight source assembly, a main circuit board, a socket circuit board, welding points, a plastic rear shell, a mounting bracket and screws, wherein the backlight source assembly comprises a light bar, a light guide plate, a flat cable, a die-casting magnesium alloy shell and a display module, the glass cover plate and the display screen are attached together through an optical film to form the display module, the display module is fixed to the backlight source assembly through structural adhesive, the main circuit board is of a universal structure, and a hollow hole is formed in a middle socket area. Welding points on the periphery of the socket circuit board are welded and fixed to the main circuit board through automatic surface mounting equipment, signals are transmitted through power supply of the welding points, central control display screens of different sizes and shapes are compatible, and therefore platform hardware design is achieved, and adaptation is carried out through different software according to different resolutions.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted central control display, in particular to a high-compatibility printed circuit board. Background Art

[0002] In the rapidly developing field of automotive central control display, the sizes of central control display screens of various OEMs are different, including standard 10.25-inch and 12.3-inch, as well as customized 11.9-inch and 13.2-inch. At the same time, the sizes of central control display screens corresponding to different models of the same OEM and high and low configurations of the same model are also different, and the corresponding structural parts and circuit boards are also different, making them incompatible. At the same time, although different models have the same appearance, due to different vehicle space layouts, the connector positions and models will also be different, which will also lead to incompatibility. The above has caused a huge waste of resources and is not conducive to product platformization.

[0003] In order to solve the above problems, we proposed a highly compatible printed circuit board design. The main circuit board is designed as a standard part, which is compatible with display screens and backlight sources of different sizes and models. The socket circuit board is customized according to the spatial layout of different products and the models required by customers, and then connected to the main circuit board through welding points on all sides. In this way, a platform design can be realized, which is compatible with central control display screens of different shapes and spatial layouts, greatly reducing R&D costs and time, improving product quality, and enhancing product market competitiveness in the automotive industry.

[0004] To this end, we propose a high-compatibility printed circuit board. Utility Model Content

[0005] The purpose of the utility model is to provide a high-compatibility printed circuit board to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a highly compatible printed circuit board, comprising a glass cover, an optical film, a display screen, structural adhesive, a backlight source assembly, a main circuit board, a socket circuit board, welding points, a plastic back shell, a mounting bracket and screws, wherein the backlight source assembly comprises a light bar, a light guide plate, a cable, a die-cast magnesium alloy housing and a display module, the glass cover and the display screen are bonded together through an optical film to form a display module, the display module is fixed to the backlight source assembly through structural adhesive, the main circuit board is a universal structure, and a hole is dug and hollowed out in the middle socket area, the welding points around the socket circuit board are welded and fixed to the main circuit board through automated patch equipment, and power is supplied and signals are transmitted through the welding points.

[0007] Preferably, the die-cast magnesium alloy housing is formed by semi-solid die-casting of magnesium alloy.

[0008] Preferably, the plastic rear shell, the mounting bracket and the main circuit board are fixed to the back side of the backlight source assembly by screws and nails.

[0009] Preferably, the structural adhesive is polyurethane hot melt adhesive.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The main circuit board of this patent is designed as a standard part, which can be compatible with central control display screens of different sizes and shapes, thereby realizing platform-based hardware design, and adapting through different software according to different resolutions; according to the space layout of the whole vehicle and the socket definition required by the product, different types of socket circuit boards are designed, and automatically welded on the main circuit board through welding points, so as to achieve compatibility with different sizes, shapes and platforms, greatly improve work efficiency and product quality, and enhance product market competitiveness.

[0012] 2. The patented plastic back cover, mounting bracket and main circuit board are fixed to the back of the backlight assembly by screws. The copper exposed in the screw area of ​​the main circuit board ensures reliable grounding. In this way, only one nailing process is required to make a product, and the nailing is automated. The entire assembly line only requires one manual operation, which reduces working hours. At the same time, the automated assembly line can adapt to different models of central control screens to achieve flexible production. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the display screen module of the utility model;

[0015] Figure 3 This is a schematic diagram of welding the main circuit board and the socket circuit board of the utility model

[0016] Figure 4 This is a schematic diagram of the composite nailing of the utility model;

[0017] Figure 5 This is a schematic diagram of the backlight source assembly of the utility model.

[0018] In the figure: 1. Glass cover; 2. Optical film; 3. Display screen; 4. Structural adhesive; 5. Backlight assembly; 6. Main circuit board; 7. Socket circuit board; 8. Welding point; 9. Plastic back shell; 10. Mounting bracket; 11. Screws; 12. Light bar; 13. Light guide plate; 14. Cable; 15. Die-cast magnesium alloy shell; 16. Display module. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-5 The utility model provides a technical solution: a highly compatible printed circuit board, including a glass cover plate 1, an optical film 2, a display screen 3, a structural adhesive 4, a backlight assembly 5, a main circuit board 6, a socket circuit board 7, a welding point 8, a plastic back shell 9, a mounting bracket 10 and a screw 11, wherein the backlight assembly 5 includes a light bar 12, a light guide plate 13, a cable 14, a die-cast magnesium alloy shell 15 and a display module 16, the glass cover plate 1 and the display screen 3 are bonded together through the optical film 2 to form a display module 16, and the display module 16 is fixed on the backlight assembly 5 through the structural adhesive 4, the main circuit board 6 is a universal structure, a hole is dug in the middle socket area, and the socket circuit board 7 has welding points around it. It is welded and fixed to the main circuit board 6 through automatic patch equipment, and power is supplied and signals are transmitted through the welding points. The mounting bracket 10 is made of magnesium alloy, which has the characteristics of lightness and high strength and can reduce the weight of the product. The glass cover 1 and the display screen 3 are bonded together through the optical film 2 through automatic optical bonding equipment to form a display module 16. The optical film 2 has the effects of high transmittance and low reflectivity, which improves the display effect. The socket circuit board 7 is placed in different positions and different types of sockets according to customer requirements. The main circuit board 6 is a common part and is not changed. In this way, it can be compatible with the customer's display screen shape, different socket models, different socket positions, etc., reducing material costs and improving development efficiency.

[0021] Reference embodiment: The die-cast magnesium alloy shell 15 is formed by semi-solid die-casting of magnesium alloy. The die-cast magnesium alloy shell 15 in the backlight source assembly 10 is formed by semi-solid die-casting of magnesium alloy. The product is lightweight in design and is formed by semi-solid die-casting. It has good flatness and high porosity requirements, ensuring the durability of the product.

[0022] Reference embodiment: The plastic back shell 9, the mounting bracket 10 and the main circuit board 6 are fixed to the back of the backlight source assembly 5 by means of screws 11. The plastic back shell, the mounting bracket and the main circuit board are fixed to the back of the backlight source assembly 5 by means of screws. The screw area of ​​the main circuit board 6 is exposed copper to ensure reliable grounding. In this way, only one nailing process is required to make a product, and automated nailing is realized. The entire assembly line only requires one manual operation, which reduces working hours. At the same time, the automated assembly line can adapt to different models of central control screens to achieve flexible production.

[0023] Reference example: Structural adhesive 4 is a polyurethane hot melt adhesive, which has high bonding strength and can be quickly cured. In order to improve the appearance, this structure adopts a narrow frame structure design. The width of the polyurethane hot melt adhesive after pressing is only 2 mm. Under the premise of ensuring the bonding strength, the black ink frame around it will be as narrow as possible to improve the display effect.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highly compatible printed circuit board, comprising a glass cover plate (1), an optical film (2), a display screen (3), a structural adhesive (4), a backlight source assembly (5), a main circuit board (6), a socket circuit board (7), welding points (8), a plastic rear shell (9), a mounting bracket (10) and screws (11), wherein the backlight source assembly (5) comprises a light bar (12), a light guide plate (13), a flat cable (14), a die-cast magnesium alloy housing (15) and a display module (16), characterized in that: The glass cover plate (1) and the display screen (3) are bonded together via an optical film (2) to form a display module (16). The display module (16) is fixed to the backlight source assembly (5) via a structural adhesive (4). The main circuit board (6) is a general structure with a hole dug out in the middle socket area. The socket circuit board (7) is welded and fixed to the main circuit board (6) at welding points around it via an automated patch device, and power is supplied and signals are transmitted via the welding points.

2. A high-compatibility printed circuit board according to claim 1, characterized in that: The die-cast magnesium alloy housing (15) is formed by semi-solid die-casting of magnesium alloy.

3. A high-compatibility printed circuit board according to claim 1, characterized in that: The plastic rear shell (9), the mounting bracket (10) and the main circuit board (6) are fixed to the back side of the backlight source assembly (5) by means of screws (11) and nailing.

4. A high-compatibility printed circuit board according to claim 1, characterized in that: The structural adhesive (4) is a polyurethane hot melt adhesive.

Images