High-voltage power input structure on adapter plate and LED indoor display screen

Abstract

The utility model provides a kind of high voltage power input structure on adapter plate and LED indoor display screen, it is related to electronic equipment structure technical field.A kind of high voltage power input structure on adapter plate, comprising: adapter plate, two welding holes are provided on the adapter plate;The plug or socket with two Pin feet is welded on the welding hole to make the plug or socket be connected on the adapter plate, and long hole with preset width is formed between two welding holes, and insulating material is arranged in the long hole to increase creepage distance.The scheme is to realize the 220V power input satisfying IPC requirement.

Description

Technical Field

[0001] This utility model relates to the field of electronic equipment structure technology, and more specifically, to a high-voltage power input structure on an adapter board and an indoor LED display screen. Background Technology

[0002] As LED indoor displays trend towards miniaturization and energy efficiency, the power consumption of individual units is gradually decreasing. Currently, the power consumption of a 600x337.5mm cabinet is below 120W, and can even be reduced to below 80W. Based on a standard AC voltage of 220V, the current per unit is less than 0.5A. Against this backdrop, traditional power input connectors are gradually being replaced by terminal blocks. However, existing technologies have significant shortcomings in meeting safety regulations. For example, when using a 2-pin plug or socket with a 2.54mm pitch, the distance between the two pins is only 2.54mm (e.g., ...). Figure 1 The spacing of the solder holes on the corresponding adapter board is also 2.54mm, which fails to meet the safety requirements of the IPC (International Electron Assembly and Interconnection Technology Association). According to IPC standards, for 220V voltage, the minimum safety spacing is typically required to be 3.5mm; therefore, this existing technology poses a safety hazard. Furthermore, existing technology could meet IPC safety requirements by using a 3-pin plug or socket with a 2.54mm pitch and eliminating the middle pin to achieve a 5.08mm spacing between the two pins (e.g., ...). Figure 2 However, this solution still faces many problems in practical applications. On the one hand, removing the middle pin of the plug requires additional manual operation, increasing manpower and material costs; on the other hand, customizing a dedicated plug also significantly increases product development costs. Furthermore, the socket wiring needs to be connected to the two outer wiring holes, while the middle hole remains unconnected. This not only increases operational difficulty but also easily leads to rework due to wiring errors, wasting time and effort. Utility Model Content

[0003] This utility model discloses a high-voltage power input structure on an adapter board, which aims to solve the problems mentioned above.

[0004] The present invention adopts the following solution:

[0005] A high-voltage power input structure on an adapter board includes: an adapter board with two welding holes; a plug or socket with two pins is welded to the welding holes to connect the plug or socket to the adapter board, and an elongated hole of a predetermined width is formed between the two welding holes, with insulating material disposed in the elongated hole to increase the creepage distance.

[0006] Furthermore, the center-to-center distance between the two pins of the plug or socket is 4.2mm, and the center-to-center distance between the two solder holes on the adapter plate is the same as the center-to-center distance between the two pins of the plug or socket.

[0007] Furthermore, the preset width of the elongated hole is not less than 2.0 mm.

[0008] Furthermore, the two pins are 1.2mm x 1.2mm square pins.

[0009] Furthermore, the insulating material is a 2mm thick insulating sheet placed inside the elongated hole.

[0010] Furthermore, the elongated holes and welding holes of the adapter plate are machined in one step.

[0011] Furthermore, the height of the insulating sheet protrudes beyond the plane of the adapter plate to shield between the two pins.

[0012] This utility model also provides an indoor LED display screen, including the high-voltage power input structure on the adapter board.

[0013] Beneficial effects:

[0014] In this solution, a long strip hole with a width of not less than 2.0mm is added between the two welding holes of the adapter board. The long strip hole and welding hole of the adapter board are formed in one operation. The processing is guaranteed by the production process. The selected plug or socket is a standard part and does not require special processing. Thus, the socket or plug can meet the 220V power input requirement of IPC without increasing the production cost. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the high-voltage power input structure on the adapter board in the prior art;

[0016] Figure 2 This is a schematic diagram of another structure of the high-voltage power input structure on the existing memory transfer board;

[0017] Figure 3 This is a schematic diagram of a high-voltage power input structure on an adapter board in this embodiment;

[0018] Figure 4 This is a cross-sectional view of a high-voltage power input structure on an adapter board in this embodiment.

[0019] Attached reference numerals: 1. Adapter plate, 11. Soldering hole, 12. Elongated hole, 2. Plug or socket, 21. Pin, 3. Insulating sheet. Detailed Implementation

[0020] Combination Figure 3 and Figure 4 As shown, this embodiment provides an indoor LED display screen, including a high-voltage power input structure on an adapter board. The high-voltage power input structure on the adapter board includes: an adapter board 1, which has two welding holes 11; a plug or socket with two pins 21 is welded to the welding holes 11 to connect the plug or socket to the adapter board 1, and an elongated hole 12 of a predetermined width is formed between the two welding holes 11. Insulating material is disposed within the elongated hole 12 to increase the creepage distance.

[0021] In this embodiment, the adapter board 1 is an existing PCB board, etc., and the plug or socket is an existing standard part. In this embodiment, the elongated hole 12 and the soldering hole 11 of the adapter board 1 are formed in one process.

[0022] Continue to combine Figure 3 and Figure 4 As shown, specifically, the center-to-center distance between the two pins 21 of the plug or socket is 4.2 mm, and the center-to-center distance between the two soldering holes 11 on the adapter plate 1 is the same as the center-to-center distance between the two pins 21 of the plug or socket, so that the pins 21 can be soldered into the soldering holes 11. In one embodiment, the two pins 21 can be 1.2 mm x 1.2 mm square pins, so the distance between the two pins 21 is 3.0 mm.

[0023] Combination Figure 4 As shown, in this embodiment, the elongated hole 12 can be an elongated groove or through slot provided on the adapter plate 1, and the preset width of the elongated hole 12 is not less than 2.0 mm. It should be noted that the preset width is less than the distance between the two welding holes 11, and the insulating material is a 2 mm thick insulating sheet 3 placed inside the elongated hole 12. The insulating sheet 3 can be made of existing insulating materials, such as polyimide or epoxy resin. The elongated hole 12 and the insulating sheet 3 increase the creepage distance between the two welding holes 11, thereby effectively avoiding electrical faults caused by insufficient creepage distance.

[0024] In a preferred embodiment, the insulating sheet 3 protrudes from the plane of the adapter plate 1 to further shield between the two pins 21. This arrangement can further improve the creepage distance between the two pins 21.

[0025] This solution significantly improves the creepage distance by adding an elongated hole 12 between the welding holes 11 and inserting an insulating sheet 3, thus solving the safety hazard problem caused by insufficient safety clearance in existing technologies. Secondly, by using a standard 4.2mm pitch 2-pin plug or socket 2, the need for customized plugs or removal of the middle pin 21 is avoided, thereby reducing production costs and operational complexity. Thirdly, the welding holes 11 and elongated holes 12 on the adapter plate 1 can be formed in one process, making the production process simple and reliable, without requiring additional complex operations. Finally, this design is fully compatible with existing standard plugs or sockets 2, avoiding supply chain limitations caused by special designs. In summary, this technical solution has significant advantages in terms of safety, cost savings, process simplification, and compatibility, providing reliable technical support for the miniaturization and energy-saving requirements of LED indoor display screens.

[0026] It should be understood that the above are only preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions that fall within the scope of the present utility model are protected by the present utility model.

[0027] The accompanying drawings used in the above description of the embodiments only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

Claims

1. An adapter plate high voltage power input structure, characterized by, Includes: an adapter plate, wherein the adapter plate is provided with two welding holes; A plug or socket with two pins is welded onto the welding hole to connect the plug or socket to the adapter board, and an elongated hole of a preset width is formed between the two welding holes. Insulating material is provided in the elongated hole to increase the creepage distance.

2. The high voltage power input structure on an adapter plate according to claim 1, wherein, The center-to-center distance between the two pins of the plug or socket is 4.2mm, and the center-to-center distance between the two solder holes on the adapter plate is the same as the center-to-center distance between the two pins of the plug or socket.

3. The high voltage power input structure on an adapter plate according to claim 2, wherein, The preset width of the elongated hole is not less than 2.0 mm.

4. The high voltage power input structure on an adapter plate according to claim 2, wherein, The two pins are 1.2mm x 1.2mm square pins.

5. The high voltage power input structure on an adapter plate according to claim 3, wherein, The insulating material is a 2mm thick insulating sheet placed inside the elongated hole.

6. The high voltage power input structure on an adapter plate of claim 1, wherein, The elongated holes and welding holes of the adapter plate are formed in one process.

7. The high voltage power input structure on an adapter plate according to claim 5, wherein, The insulating sheet protrudes beyond the plane of the adapter plate to shield between the two pins.

8. An LED indoor display screen, characterized by Includes the high-voltage power input structure on the adapter board according to any one of claims 1-7.

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