Duplex-screen all-in-one machine

Abstract

The utility model provides a duplex screen all-in-one machine. The duplex screen all-in-one machine comprises a tempered glass cover plate, an LED module, a plastic support, an embedded threaded supporting block, a transverse supporting strip, a vertical supporting strip and a PC plastic rear shell. The LED module is attached to the tempered glass cover plate through OCA glue, and the plastic support is used for embedding the LED module and is fixed to the tempered glass cover plate through hot melt glue. The embedded thread supporting block is also adhered to the toughened glass cover plate through the hot melt adhesive and is matched and connected with the plastic bracket; the transverse supporting strip is locked and attached to the embedded thread supporting block and the plastic support through the machine thread screws, and the vertical supporting strip is connected with the plastic support and the transverse supporting strip in an interlocking mode; and the PC plastic rear shell is locked and attached to the plastic bracket. According to the structure, the overall flatness and the structural strength are effectively improved, supporting and anti-static leading-out of a large-size screen are conveniently achieved, and the requirements of an automobile cab and other scenes for high-reliability display equipment are met.

Description

Technical Field

[0001] The present invention relates to the field of dual-screen all-in-one machines, and in particular to a structural design scheme for improving the flatness of dual-screen all-in-one machines. Background Art

[0002] With the rapid development of the automotive industry, commercial vehicles are focusing on practicality while also continuously improving comfort. Major automakers are actively optimizing the traditional cockpit environment. However, limited by commercial vehicle cost budgets, profit margins for various components within the cockpit are very limited. This places higher demands on component suppliers: to minimize costs while improving comfort and entertainment. To maintain profits, component suppliers within the industry often adopt methods such as replacing materials and reducing usage, striving for simpler, lighter, and thinner designs. However, these improvements have also led to increasing quality issues.

[0003] Taking the dual-screen all-in-one machine as an example, its traditional design has the following main defects:

[0004] Because the LED screen is subjected to stress, it is easy to crack and warp, resulting in light leakage at the four corners, affecting the display effect;

[0005] The large deformation of the plastic parts can easily cause the corners of the glass cover to warp, reducing the overall smoothness of the appearance;

[0006] Traditional solutions mostly use plastic parts, which have poor conductivity and are easily affected by static electricity, causing device damage.

[0007] Therefore, how to improve the flatness of the dual-screen all-in-one machine by improving the structural design, prevent the glass cover from warping and light leakage from the four corners of the LED screen, and optimize the static electricity conduction path is an urgent problem that needs to be solved. Summary of the Invention

[0008] The present invention provides a dual-screen all-in-one machine, which effectively solves the problems of light leakage at the four corners of the LED screen, warping of the glass cover, and inability to timely discharge static electricity caused by insufficient flatness in the prior art by optimizing the structural design, thereby improving the product's display effect, overall flatness and anti-static performance.

[0009] The dual-screen all-in-one device of this invention primarily comprises the following components: a tempered glass cover, an LED module, a plastic bracket, an embedded threaded support block, 3mm horizontal support bars, 5mm vertical support bars, and a PC plastic backshell. The LED module is attached to the tempered glass cover using OCA adhesive and embedded within the plastic bracket. The plastic bracket is attached to the tempered glass cover using hot melt adhesive and securely fastens the embedded control board and PC plastic backshell.

[0010] In order to further improve the structural strength and flatness of the product, the present invention adds the following structural features on the basis of the traditional design:

[0011] The embedded threaded support block is attached to the tempered glass cover with hot melt adhesive and cooperates with the plastic bracket to play a fixed support role.

[0012] The 3mm horizontal support bar is connected to the embedded threaded support block and plastic bracket via M3 machine screws. It provides tension for the tempered glass cover to prevent the glass cover from warping, and at the same time forms an overall flatness structure with the vertical support bar.

[0013] The 5mm vertical support bars are embedded in the plastic bracket and connected to the horizontal support bars via M3 machine screws, further improving the strength and stability of the overall structure.

[0014] The static electricity dissipation path, through the metal grid formed by the embedded threaded support block, 3mm horizontal support bar and 5mm vertical support bar, can promptly discharge static electricity to the fixed foot and finally into the car body, effectively preventing static electricity from damaging the device.

[0015] Through the above improved design, the present invention has the following significant advantages:

[0016] To improve flatness, the combined design of 5mm vertical support bars and 3mm horizontal support bars ensures that the overall structure forms a flat surface, effectively preventing the glass cover from warping.

[0017] To prevent light leakage, the embedded threaded support block provides additional support. Combined with the tension of the 3mm horizontal support bar, it reduces the light leakage in the four corners of the LED screen caused by stress and improves the display effect.

[0018] Electrostatic protection, through a reasonably designed electrostatic conduction path, conducts static electricity from the metal grid to the car body, protecting internal electronic components and improving product safety.

[0019] Enhanced strength and stability, the 5mm vertical support bars improve the overall strength and solve the deformation problem caused by insufficient strength of plastic parts in traditional designs.

[0020] In summary, the present invention significantly improves the performance and reliability of the dual-screen all-in-one machine through a series of innovative structural designs, and is suitable for display devices in a car cockpit environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of a dual-screen all-in-one machine for this application.

[0022] Figure 2 This is a schematic diagram of the internal structure of a dual-screen all-in-one machine.

[0023] Figure 3 This is a schematic diagram of the internal structure of a dual-screen all-in-one machine, including a complete metal grid electrostatic discharge path. DETAILED DESCRIPTION

[0024] Example 1

[0025] The specific implementation of this application is described in detail below with reference to the accompanying drawings.

[0026] The present invention provides a dual-screen all-in-one device 100. By optimizing its structural design, it solves existing problems such as light leakage from the four corners of the LED screen 101, warping of the glass cover, and difficulty discharging static electricity caused by insufficient flatness. The dual-screen all-in-one device is a long, rectangular display device longer than 700 mm and includes a tempered glass cover 200, two LED modules 210 (the LED modules include LCD screens), a plastic bracket 220, an embedded threaded support block 230, 3 mm horizontal support bars 240, 5 mm vertical support bars 250, and a PC plastic rear case 260.

[0027] The tempered glass cover plate 200 of this invention measures 700mm x 150mm x 1.8mm. As the outermost layer of the display device, it provides high strength and light transmittance. Two LED modules 210, each measuring 10.25 inches, are attached to the inner surface of the tempered glass cover plate 200 using OCA adhesive. They are tightly bonded to the glass cover plate 200, ensuring display clarity and uniformity. A plastic bracket 220 is located behind the glass cover plate 200 and secured to it with hot-melt adhesive, forming the basic support structure.

[0028] To enhance the device's flatness and reliability, the internally threaded support block 230 is designed to precisely align with the corresponding area on the back of the glass cover 200 and is secured to the glass cover 200 via hot-melt adhesive. A 3mm horizontal support bar 240 is connected between the internally threaded support block 230 and the plastic bracket 220 via M3 machine screws 241, providing lateral tension to the glass cover 200 and preventing warping caused by stress concentration. A 5mm vertical support bar 250 is interlocked with the plastic bracket 220 and secured to the horizontal support bar 240 via M3 machine screws, enhancing the vertical support strength of the overall structure and ensuring the flatness of the long glass cover 200.

[0029] The dimensions of the hollow support block reserved on the plastic bracket 220 strictly match the height of the internally threaded support block 230, with the height difference between the two controlled within 0.1mm. Precise positioning at the bottom and around the perimeter of the hollow support block ensures that the internally threaded support block 230 and bracket 220 fit seamlessly on the same mounting surface, ensuring the smoothness and stability of the overall structure.

[0030] The PC plastic rear shell 260 is connected to the plastic bracket 220 by screws to protect the internal circuit board components. The overall structural design ensures the firmness and durability of the product.

[0031] Reference Figure 3 To further optimize the product's antistatic performance, this embodiment features a complete metal mesh static discharge path 290 (the path indicated by the dotted line 290). The embedded threaded support block 230 is coated with a conductive coating and secured to the back of the glass cover 200 with hot-melt adhesive, where it contacts the 3mm horizontal support bar 240. The 3mm horizontal support bar 240 is made of metal and can carry static electricity and transfer it to the 5mm vertical support bar 250. A conductive channel is provided within the vertical support bar 250, which directs static electricity through the metal frame into the fixed foot 270 and ultimately to the vehicle body.

[0032] The static electricity conduction path design can effectively eliminate static electricity accumulation during equipment operation, prevent static electricity from damaging electronic components, and thus improve the reliability and service life of the equipment.

[0033] Example 2

[0034] This embodiment optimizes the assembly process of a dual-screen all-in-one device to improve production efficiency and assembly precision. First, the surface of the glass cover plate 200 is cleaned to ensure that the surface where the components will be attached is free of dust and impurities. An embedded threaded support block 230 is attached to the back of the glass cover plate 200, and the hot melt adhesive is cured by heat pressing.

[0035] Next, attach the LED module 210 to the inner surface of the glass cover 200 using OCA adhesive, ensuring the module 210 is accurately positioned. The plastic bracket 220 is secured to the glass cover 200 using hot melt adhesive, forming a preliminary support frame. Next, connect the 3mm horizontal support bar 240 from the back of the plastic bracket 220 to the internally threaded support block 230 and the plastic bracket 220 using M3 screws to further enhance the stability of the overall structure.

[0036] From the back of the plastic bracket 220, insert a 5mm vertical support bar 250 into the hollow area of ​​the bracket and secure it to the horizontal support bar 240 with M3 screws, forming a complete flat support system. Finally, install the control board 280 into the reserved position of the plastic bracket 220 and secure the PC plastic back cover (not shown) to the back of the bracket 220 with screws to complete the overall assembly.

[0037] The optimized assembly process improves product production efficiency while ensuring assembly accuracy and effectively reducing the defective rate.

[0038] To further expand the performance of the dual-screen all-in-one device, this embodiment not only optimizes the internal structure but also improves the outer shell design and installation method. Specifically, the present invention applies a matte finish to the surface of the PC plastic rear shell to reduce the interference of reflections on the display effect, while also improving the product's wear resistance and corrosion resistance. The rear shell's fixing method has also been adjusted, adopting a hidden screw design, which not only improves the product's appearance but also enhances the stability of the assembly.

[0039] Furthermore, to enhance the device's adaptability, the present invention incorporates an adjustable bracket module that allows for adjustments in angle and height to suit different installation environments. This design allows the dual-screen all-in-one device to be widely applicable to various types of vehicles and scenarios, while also enhancing the user experience.

[0040] The present invention further optimizes the circuit board layout. During the installation of the control board 280, a modular design is employed, separating the main and auxiliary control boards. This design not only reduces electromagnetic interference but also improves the system's heat dissipation efficiency. By embedding thermally conductive material within the reserved area of ​​the plastic bracket 220, heat generated by the electronic components can be quickly dissipated to the rear housing 260, thereby extending the device's service life.

[0041] Furthermore, the circuit boards are connected using a highly reliable snap-on interface design, replacing traditional solder connections. This design not only reduces assembly difficulty but also facilitates subsequent maintenance and replacement.

[0042] In order to verify the actual performance of the present invention, this embodiment experimentally tested the key indicators of the dual-screen all-in-one machine, including flatness, anti-static performance and impact resistance. Through high-precision measuring instrument detection, the overall flatness error of the glass cover 200 is less than 0.1mm, which is significantly better than the existing technology. The static electricity extraction test shows that static electricity can be quickly discharged through the conductive path of the embedded threaded support block 230, the horizontal support bar 240 and the vertical support bar 250, avoiding static electricity accumulation and damage to internal components.

[0043] In the impact resistance test, the device was able to withstand the impact forces that may occur during transportation and installation, and the glass cover 200 did not crack or warp. These test results further demonstrate the significant advantages of the present invention in terms of flatness, anti-static and impact resistance.

[0044] Example 3

[0045] The dual-screen all-in-one device of the present invention is not only suitable for display devices in car cockpits, but can also be expanded to other application scenarios. For example, in the field of multimedia display in commercial vehicles, the dual-screen all-in-one device can be used as part of the in-car entertainment system, providing high-definition image display and excellent anti-static performance.

[0046] The device can also be used in household appliances, such as embedded touchscreen displays in refrigerators and washing machines. By adopting the support design of this invention, the flatness and service life of household appliance panels can be significantly improved. In industrial equipment, the high-strength support structure of dual-screen all-in-one devices can adapt to complex operating environments and ensure reliability under high-intensity vibration.

[0047] In summary, this application not only effectively ensures the overall flatness, but also significantly improves the structural strength and impact resistance by rationally designing a large-sized tempered glass cover, optimizing the installation method of the LED module and the plastic bracket, and adopting a combination structure of multiple support bars and embedded threaded support blocks; at the same time, the metal grid path formed by the conductive coating and the support bars is used to achieve efficient static discharge, greatly reducing the risk of static electricity causing damage to electronic components. By further optimizing the size, assembly process and overall shell structure in different embodiments, the production efficiency and assembly accuracy of the product are improved, and the application value of the dual-screen all-in-one machine in multiple fields such as car cockpits, household appliances and industrial equipment is expanded.

Claims

1. A dual-screen all-in-one machine, characterized in that: include: Tempered glass cover; The LED module is attached to the tempered glass cover plate by OCA adhesive; A plastic bracket, wherein the LED module is embedded in the plastic bracket, and the plastic bracket is attached to the tempered glass cover plate by hot melt adhesive; The embedded threaded support block is adhered to the tempered glass cover plate by hot melt adhesive and is matched with the plastic bracket; A transverse support bar, fixed to the internally threaded support block and the plastic bracket by machine screws; A vertical support bar, interlockingly connected with the plastic bracket and the horizontal support bar; The PC plastic rear shell is locked to the plastic bracket.

2. The dual-screen all-in-one machine according to claim 1, characterized in that: The dual-screen all-in-one machine is a long strip structure with a size of more than 700 mm.

3. The dual-screen all-in-one machine according to claim 1, characterized in that: The height of the embedded thread support block matches the hollow support block of the plastic bracket.

4. The dual-screen all-in-one machine according to claim 1, characterized in that: The horizontal support bar is a 3mm horizontal support bar, and the horizontal support bar is locked and connected to the vertical support bar by M3 machine screws. The vertical support bar is a 5mm vertical support bar.

5. The dual-screen all-in-one machine according to claim 4, characterized in that: The 5mm vertical support strips are used to connect the plastic bracket, the 3mm horizontal support strips and the 5mm vertical support strips into the same plane to improve the overall flatness.

6. The dual-screen all-in-one machine according to claim 5, characterized in that: The 3mm transverse support strips are used to provide tension to prevent the tempered glass cover from warping.

7. The dual-screen all-in-one machine according to claim 5, characterized in that: The 5mm vertical support bars are used to improve the strength of the overall structure.

8. The dual-screen all-in-one machine according to claim 5, characterized in that: The 3mm horizontal support strips and the 5mm vertical support strips form a conductive path for dissipating static electricity.

9. The dual-screen all-in-one machine according to claim 8, characterized in that: The static electricity is conducted to the fixed feet through the metal grid composed of the embedded threaded support block, 3mm horizontal support strips and 5mm vertical support strips and finally introduced into the vehicle body.

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