Large-current PCB assembly for automatic switching device

Abstract

The utility model discloses a large current PCB assembly used for an automatic switching device, comprising a power supply board and a signal board, the signal board and the power supply board are overlapped, one end and two sides of the power supply board are provided with a plurality of first pin holes and a plurality of via holes, one end and two sides of the signal plate are provided with openings for avoiding the plurality of first pin holes and a plurality of second pin holes in one-to-one butt joint with the plurality of via holes; the plurality of first pin holes, the plurality of via holes and the plurality of second pin holes are tightly arranged in an array manner; a signal line on the signal board is arranged on the board surface far away from the power board, and a power line on the power board is arranged on the board surface far away from the signal board; according to the scheme, one printed circuit board is changed into two printed circuit boards formed by stacking the signal board and the power board, board division and partition of large-current signals and common signals are achieved through the signal board and the power board, the electromagnetic compatibility is better, and interference of the large-current signals on transmission of the common signals is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB, and particularly relates to a large-current PCB component for an automatic switching device. Background Art

[0002] A PCB (Printed Circuit Board), whose Chinese name is printed circuit board, also known as printed wiring board, is an important electronic component that provides a support structure for the electrical connection of electronic components.

[0003] An automatic switching device is a device that switches and connects a signal input terminal to two signal output terminals respectively. Among them, both the signal input terminal and the signal output terminal include a plurality of current signal pins and a plurality of general signal pins, and the connection is realized through a printed circuit board.

[0004] However, for a printed circuit board that can simultaneously meet large current and multiple signals at present, the design and processing of the printed circuit board are difficult, and the size of the printed circuit board is large, the thickness is too thick, the occupied space is more, and the large current signal causes electromagnetic interference to the transmission of general signals. Content of the Utility Model

[0005] Aiming at the above deficiencies of the prior art, the utility model provides a large-current PCB component for an automatic switching device, which solves the problem that large-current signals in a printed circuit board are prone to generate electromagnetic interference to general signals.

[0006] To achieve the above object, the technical solution adopted by the utility model is as follows:

[0007] There is provided a large-current PCB component for an automatic switching device, which includes a power supply board and a signal board. The signal board and the power supply board are overlapped. A plurality of first pin holes and a plurality of vias are provided at one end and both sides of the power supply board, and openings for avoiding a plurality of first pin holes and a plurality of second pin holes in one-to-one correspondence with the plurality of vias are provided at one end and both sides of the signal board.

[0008] Furthermore, the plurality of first pin holes, the plurality of vias and the plurality of second pin holes are all arranged in a closely spaced array.

[0009] Furthermore, the signal lines on the signal board are arranged on the board surface far from the power supply board, and the power lines on the power supply board are arranged on the board surface far from the signal board.

[0010] Furthermore, positioning holes for overlapping positioning are provided on the signal board and the power supply board.

[0011] Furthermore, the vias and the second pin holes have the same aperture.

[0012] Further, first mounting holes and second mounting holes which are offset from each other are provided at the corners of the signal board and the power supply board.

[0013] Further, a plurality of switching switch pin holes are provided in the middle parts of the signal board and the power supply board, and the plurality of switching switch pin holes on the signal board and the power supply board are docked in pairs.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. In this solution, a printed circuit board is changed to two printed circuit boards stacked by a signal board and a power supply board, and the large-current signal and the ordinary signal are separated into boards and regions through the signal board and the power supply board, so that the electromagnetic compatibility is better, and the interference of the large-current signal on the transmission of the ordinary signal is reduced.

[0016] 2. Compared with the integrated printed circuit board, the board manufacturing process of the power supply board and the signal board is more mature, the cost is lower, the reliability is higher, and the wiring of the power supply board and the signal board is more standardized and orderly.

[0017] 3. The board-separated and region-separated signal transmission method adopted in this solution takes one end of the signal board and the power supply board as the signal input end, and takes both sides of the signal board and the power supply board as the signal output end. While facilitating the external connection of the input socket and the output socket, it is convenient for the power supply board and the signal board to be separately and standardly and orderly wired, and the space utilization rate is high, so as to facilitate the miniaturization and light-weight design of the printed circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the large-current PCB assembly cooperating with the signal input socket, the signal output socket and the switching switch.

[0019] Figure 2 It is a first schematic structural diagram of the large-current PCB assembly.

[0020] Figure 3 It is a second schematic structural diagram of the large-current PCB assembly.

[0021] Wherein, 1. Power supply board, 2. Signal board, 3. First pin hole, 4. Via hole, 5. Opening, 6. Second pin hole, 7. Positioning hole, 8. First mounting hole, 9. Second mounting hole, 10. Switching switch pin hole, 11. Signal input socket, 12. Signal output socket, 13. Power supply signal pin, 14. Ordinary signal pin, 15. Switching switch. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following describes the specific embodiments of the present utility model to facilitate those skilled in the art of this technology to understand the present utility model. However, it should be clear that the present utility model is not limited to the scope of the specific embodiments. For those of ordinary skill in the art of this technology, as long as various changes are within the spirit and scope of the present utility model defined and determined by the appended claims, these changes are obvious, and all utility models created using the concept of the present utility model are within the scope of protection.

[0023] As Figures 1 to 3 shown, the high-current PCB assembly of this solution is used for the electrical connection of high-current signals and ordinary signals between a signal input socket 11 and two signal output sockets 12 in an automatic switching device. It includes a power supply board 1 and a signal board 2. The signal board 2 and the power supply board 1 are overlapped. A number of first pin holes 3 and a number of vias 4 are provided at one end and both sides of the power supply board 1. Among them, the first pin holes 3 are used for fixedly connecting power signal pins 13, and the vias 4 facilitate the ordinary signal pins 14 to pass through the power supply board 1; openings 5 for avoiding a number of first pin holes 3 and a number of second pin holes 6 that are in one-to-one docking with the number of vias 4 are provided at one end and both sides of the signal board 2. The second pin holes 6 are used for fixedly connecting ordinary signal pins 14, and the vias 4 and the second pin holes 6 have the same aperture; a number of first pin holes 3, a number of vias 4, and a number of second pin holes 6 are all arranged in an array in a closely arranged manner; the signal lines on the signal board 2 are arranged on the board surface far from the power supply board 1, and the power lines on the power supply board 1 are arranged on the board surface far from the signal board 2.

[0024] Positioning holes 7 for overlapping positioning are provided on the signal board 2 and the power supply board 1 to avoid position deviation between the signal board 2 and the power supply board 1; first mounting holes 8 and second mounting holes 9 that are mutually offset are provided at the corners of the signal board 2 and the power supply board 1 to facilitate the installation of the signal board 2 and the power supply board 1 in the housing of the automatic switching device without affecting each other; a number of switching switch 15 pin holes 10 are provided in the middle of the signal board 2 and the power supply board 1, and the number of switching switch 15 pin holes 10 on the signal board 2 and the power supply board 1 are in one-to-one docking to facilitate the installation of the switching switch 15 and simultaneously control the switching connection of high-current signals and ordinary signals.

[0025] This solution consists of two printed circuit boards formed by overlapping the signal board 2 and the power supply board 1, and realizes the separation of high-current signals and ordinary signals into boards and zones through the signal board 2 and the power supply board 1, with better electromagnetic compatibility and reduced interference of high-current signals on the transmission of ordinary signals; taking one end of the signal board 2 and the power supply board 1 as the signal input end and both sides of the signal board 2 and the power supply board 1 as the signal output ends is convenient for corresponding external connection of the signal input socket 11 and the signal output socket 12, and at the same time facilitates the separate and standardized and orderly wiring of the power supply board 1 and the signal board 2, with high space utilization rate, so as to facilitate the miniaturization and lightweight design of the printed circuit board.

Claims

1. A high current PCB assembly for an automatic switching device, characterized in that: It includes a power board and a signal board, the signal board and the power board are overlapped, one end and both sides of the power board are provided with a plurality of first pin holes and a plurality of via holes, one end and both sides of the signal board are provided with openings for avoiding the plurality of first pin holes and a plurality of second pin holes connected one by one with the plurality of via holes.

2. The high current PCB assembly for an automatic switching device according to claim 1, characterized in that: The first pin holes, the via holes and the second pin holes are closely arranged in an array.

3. The high current PCB assembly for an automatic switching device according to claim 1, characterized in that: The signal lines on the signal board are arranged on a board surface away from the power board, and the power lines on the power board are arranged on a board surface away from the signal board.

4. The high current PCB assembly for an automatic switching device according to claim 1, characterized in that: The signal board and the power board are provided with positioning holes for overlapping positioning.

5. The high current PCB assembly for an automatic switching device according to claim 1, characterized in that: The via hole and the second pin hole have the same hole diameter.

6. The high current PCB assembly for an automatic switching device according to claim 1, characterized in that: The corners of the signal board and the power board are provided with a first mounting hole and a second mounting hole which are offset from each other.

7. The high current PCB assembly for an automatic switching device according to claim 1, characterized in that: A plurality of switch pin holes are arranged in the middle of the signal board and the power board, and the plurality of switch pin holes on the signal board and the power board are connected one by one.

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