CN216565723U

CN216565723U - PCB board level space antistatic circuit board

Info

Publication number: CN216565723U
Application number: CN202123296494.7U
Authority: CN
Inventors: 潘峥嵘; 武亚杰
Original assignee: Indimai Intelligent Technology Wuxi Co ltd
Current assignee: Indimai Intelligent Technology Wuxi Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-05-17
Anticipated expiration: 2031-12-24

Abstract

The utility model provides a PCB board-level space anti-static circuit board which comprises a PCB board, wherein a surrounding non-closed or closed static circuit is arranged on the periphery of the PCB board, the static circuit is connected with a grounding pad point, a mounting screw through hole and a positioning through hole are formed in the PCB board, a conduction path is led out from the static circuit to enable the mounting screw through hole and the positioning through hole to be in a closed surrounding manner, a multi-path branch conduction path is led out from the static circuit, various electronic devices are welded on the PCB board, the shell of each electronic device is in conduction connection with the static circuit through the branch conduction path, a 12V direct current circuit is further arranged on the PCB board, and the negative electrode of the 12V direct current circuit is connected with the static circuit. The utility model solves the problems of poor antistatic capability and poor effect in the prior art.

Description

PCB board level space antistatic circuit board

Technical Field

The utility model relates to the technical field of static prevention, in particular to a PCB board-level space static-prevention circuit board.

Background

In the traditional PCB layout, the layout requirements of the product such as the functions, high frequency, low frequency, heat dissipation, heat conduction, common mode, differential mode and the like of the product are mostly considered; the ESD anti-interference capability is not analyzed and demonstrated from the space and the layout.

In the traditional PCB layout, a blocking mode and an absorption mode are adopted for more static electricity, so that the capacities of a plurality of devices are larger, and the cost is increased.

Therefore, the new idea is to adopt a sparse mode to bypass the shortest path of the static energy, so that the anti-static capability of the product is rapidly improved; thereby promoting the product grade on the basis of not increasing the product cost.

SUMMERY OF THE UTILITY MODEL

The utility model provides a PCB board-level space anti-static circuit board, which solves the problems of poor anti-static capability and poor effect in the prior art.

In order to solve the technical problems, the utility model provides a PCB level space anti-static circuit board which comprises a PCB, wherein a surrounding non-closed or closed static circuit is arranged on the periphery of the PCB, the static circuit is connected with a grounding pad point, a mounting screw through hole and a positioning through hole are formed in the PCB, a conduction path is led out from the static circuit to close and surround the mounting screw through hole and the positioning through hole, a plurality of branch conduction paths are led out from the static circuit, various electronic devices are welded on the PCB, the shell of each electronic device is in conduction connection with the static circuit through the branch conduction path, a 12V direct current circuit is further arranged on the PCB, and the negative electrode of the 12V direct current circuit is connected with the static circuit.

The electronic device comprises a capacitor and a resistor, and the shells of the capacitor and the resistor are tightly attached to the PCB and are conducted with the electrostatic loop.

And connecting the grounding pad point in a grounding conduction mode.

The PCB is connected with the grounded metal shell, and the electrostatic loop, the grounding pad point and the metal shell are connected in a conduction mode.

And the electrostatic circuit positioned on the PCB edge adopts a metal copper foil, and is arranged along the PCB edge in a spreading manner.

The utility model has the following beneficial effects: according to the PCB-level space anti-static circuit board, the anti-interference capability of the PCB is improved, the static circuit on the PCB is reasonably planned, and the static discharge effect is good.

Drawings

Fig. 1 is a schematic structural view of a PCB-level space antistatic circuit board according to the present invention;

the circuit comprises a PCB (printed circuit board), a 2-electrostatic circuit, a 3-grounding pad point, a 4-screw through hole, a 5-positioning through hole, a 6-branch conducting circuit, a 7-12V direct current circuit, an 8-capacitor, a 9-resistor and a 10-cathode.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments.

As shown in fig. 1, the embodiment of the present invention provides a PCB board level space anti-static circuit board, which includes a PCB board 1, a surrounding non-closed or closed static circuit 2 is disposed on the periphery of the PCB board 1, the fullness of the structure depends on the grade and the structure allowance to be endured, the joint point of the static circuit 2 and the main circuit on the PCB board 1 conforms to the current circuit principle, so that the functional current and the ESD current do not interfere with each other, the static circuit 2 is connected with a ground pad point 3, the PCB board 1 is disposed with a mounting screw through hole 4 and a positioning through hole 5, the static circuit 2 is led out of a conduction path to close and surround the mounting screw through hole 4 and the positioning through hole 5, the static circuit 2 is led out of a multi-path conduction path 6, the PCB board 1 is welded with a plurality of electronic devices, the housing of the electronic devices is connected with the static circuit 2 through the path conduction path 6, the PCB board 1 is also provided with a 12V direct current circuit 7, and a negative electrode 10 of the 12V direct current circuit 7 is connected with the static circuit 2.

Furthermore, the electronic device comprises a capacitor 8 and a resistor 9, and the shells of the capacitor 8 and the resistor 9 are tightly attached to the PCB 1 and are conducted with the electrostatic loop 2.

Further, the ground pad point 3 is grounded and conductively connected to discharge static electricity.

Further, the PCB board 1 is connected to a grounded metal case, and the electrostatic loop 2 and the ground pad 3 are conductively connected to the metal case to discharge static electricity.

Further, the electrostatic circuit 2 located at the edge of the PCB board 1 is made of a metal copper foil and is spread along the edge of the PCB board 1.

Further, the allowable degree of the structure is combined, and the communication relation between static electricity absorption and flow guide configuration points, lines, surfaces and the shell is matched; forming surface protection; in particular, a specific antistatic ring can be set for a device such as an electrolytic device which is very close to the housing.

In conclusion, the PCB-level space anti-static circuit board provided by the utility model has the advantages that the anti-interference capability of the PCB is improved, the static circuit on the PCB is reasonably planned, and the static discharge effect is good.

The above description is only an example of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that various modifications and variations can be made in the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides a PCB board level space prevents static circuit board which characterized in that: including PCB board (1) go up PCB board (1) and be provided with non-closed or closed electrostatic circuit (2) that encircle along the periphery, electrostatic circuit (2) are connected with ground connection pad point (3), installation screw through-hole (4), positioning hole (5) have been seted up on PCB board (1), electrostatic circuit (2) are drawn conduction path and are installed screw through-hole (4), positioning hole (5) closure and encircle, multichannel branch road conduction path (6) are drawn out in electrostatic circuit (2), the welding has multiple electron device on PCB board (1), electron device's shell passes through branch road conduction path (6) and electrostatic circuit (2) turn-on connection, still be provided with 12V direct current circuit (7) on PCB board (1), negative pole (10) and electrostatic circuit (2) of 12V direct current circuit (7) are connected.

2. The PCB board-level space anti-static circuit board according to claim 1, wherein the electronic device comprises a capacitor (8) and a resistor (9), and the outer shells of the capacitor (8) and the resistor (9) are tightly attached to the PCB board (1) and are communicated with the static circuit (2).

3. The PCB board-level spatial antistatic circuit board of claim 1, wherein the ground pad point (3) is ground conductive connected.

4. The PCB board-level space antistatic circuit board of claim 1, wherein the PCB board (1) is connected with a grounded metal shell, and the electrostatic loop (2) and the grounding pad point (3) are conductively connected with the metal shell.

5. The PCB board-level space antistatic circuit board of claim 1, wherein the electrostatic loop (2) at the edge of the PCB board (1) is made of metal copper foil and is spread along the edge of the PCB board (1).