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CN-224233903-U - PCBA board antistatic structure

CN224233903UCN 224233903 UCN224233903 UCN 224233903UCN-224233903-U

Abstract

The utility model provides an antistatic structure of a PCBA (printed Circuit Board assembly) board, which belongs to the technical field of PCBA boards and further comprises an antistatic component, wherein the antistatic component comprises a mounting plate fixed on the circuit board, a protective cover is fixed on the top of the mounting plate, two rotating discs are rotatably connected to the top of the mounting plate, the two rotating discs are electrically connected with the circuit board, and a plurality of protrusions are fixed on the side surfaces of the rotating discs. According to the utility model, the rotating disc and the bulges are rotatably connected in the mounting plate and the protective cover, the rotating disc and the bulges are connected with the circuit board through the lead, when static electricity is generated by the circuit board, the charge is conducted to the rotating disc and the bulges through the lead, the static electricity consumption is carried out by utilizing the discharge gap between the adjacent bulges, carbon deposition can be formed on the surfaces of the bulges along with the increase of the service time, the discharge performance is influenced, and at the moment, the rotating disc is rotated to drive the bulges to rotate, so that the adjacent bulges form effective discharge gaps again, the discharge capacity is recovered, and the continuous and stable protection of the circuit board is ensured.

Inventors

  • YANG JUN

Assignees

  • 深圳圆机科技有限公司

Dates

Publication Date
20260512
Application Date
20250528

Claims (6)

  1. 1. The utility model provides an antistatic structure of PCBA board, includes circuit board (1), its characterized in that still includes: Antistatic subassembly (2), antistatic subassembly (2) are including fixing mounting panel (3) on circuit board (1), and the top of mounting panel (3) is fixed with protection casing (4), and the top rotation of mounting panel (3) is connected with two rolling disc (5), and two rolling disc (5) are all connected with circuit board (1) electricity, and the side of rolling disc (5) is fixed with a plurality of arch (6), is formed with discharge gap between adjacent arch (6), and rolling disc (5) top cylinder activity runs through protection casing (4).
  2. 2. The anti-static structure of the PCBA board according to claim 1, wherein a handle (8) is fixed at the end part of the top cylinder of the rotating disc (5), and the handle (8) is in a hollowed-out arrangement.
  3. 3. The PCBA board antistatic structure according to claim 2, characterized in that the top of the handle (8) is provided with a marking line (9), the marking line (9) corresponding to the position of the protrusion (6).
  4. 4. The PCBA board antistatic structure according to claim 1, wherein the protrusion (6) is in the shape of a pyramid, and the top and bottom planes of the protrusion (6) are inclined planes one (7).
  5. 5. The anti-static structure of the PCBA board according to claim 1, wherein two friction blocks (10) symmetrically arranged are fixed on the top of the inner wall of the protective cover (4) and the top of the mounting plate (3), after the protective cover (4) is fixed, the bottoms of the friction blocks (10) on the protective cover (4) are attached to the top of the friction blocks (10) on the mounting plate (3), inclined planes II (11) are formed on opposite surfaces of the friction blocks (10), the inclined planes I (7) and the inclined planes II (11) have the same inclination angle, and the inclined planes II (11) are attached to the surface of the inclined planes I (7).
  6. 6. The PCBA board antistatic structure according to claim 5, characterized in that the edge of the friction block (10) is provided with an arc chamfer.

Description

PCBA board antistatic structure Technical Field The utility model relates to the technical field of PCBA boards, in particular to an antistatic structure of a PCBA board. Background The PCBA board is a finished board formed by welding electronic components on a Printed Circuit Board (PCB) through a Surface Mount Technology (SMT) or a plug-in technology (THT), and is composed of the printed circuit board, the electronic components and welding materials, the anti-static structure of the PCBA board is generally characterized in that two electricity leading terminals are arranged, static protection is realized through a discharge gap between the terminals, when static is generated by the PCBA board, the electricity leading terminals attract the static and consume through the discharge gap, so that the circuit board is protected, however, under a dry environment, the static generation amount is remarkably increased, the electricity leading terminals need to continuously discharge, long-time work can lead the surface of the electricity leading terminals to form carbon deposit, the discharge capacity of the electricity leading terminals is reduced, and the protection effect on the PCBA board is further weakened, and the existing anti-static structure still needs to be optimized in the aspect of realizing stable protection. Disclosure of utility model The utility model aims to solve the technical problem that the anti-static structure of the PCBA board solves the problem that carbon deposition is formed on the surface of a power leading terminal when the PCBA board works for a long time, so that the discharging capability of the PCBA board is reduced, and the protection effect of the PCBA board is further weakened. In order to solve the technical problems, the utility model provides the following technical scheme: An antistatic structure of PCBA board, includes the circuit board, still includes: The anti-static assembly comprises a mounting plate fixed on a circuit board, a protective cover is fixed at the top of the mounting plate, two rotating discs are rotationally connected to the top of the mounting plate and are electrically connected with the circuit board, a plurality of protrusions are fixed on the side faces of the rotating discs, discharge gaps are formed between adjacent protrusions, and a cylinder at the top of the rotating disc movably penetrates through the protective cover. Preferably, a handle is fixed at the end part of the top cylinder of the rotating disc, and the handle is hollowed. Preferably, the top of the handle is provided with a marking line, and the marking line corresponds to the protruding position. Preferably, the protrusion is in a quadrangular pyramid shape, and the top and bottom planes of the protrusion are inclined planes I. Preferably, the inner wall top of protection casing and the top of mounting panel all are fixed with two friction blocks that the symmetry set up, and after the protection casing is fixed, the bottom laminating of the friction block on the protection casing is at the top of the friction block on the mounting panel, and inclined plane two has all been seted up to the opposite face of friction block, and inclined plane one is the same with the inclination of inclined plane two, and inclined plane two laminating is at the surface of inclined plane one. Preferably, an arc chamfer is arranged at the edge of the friction block. Compared with the prior art, the utility model has at least the following beneficial effects: In the above-mentioned scheme, through setting up rolling disc and arch, rolling disc and arch rotate to be connected in the inside of mounting panel and protection casing, rolling disc and arch pass through the wire and are connected with the circuit board, when the circuit board produced static, the charge was conducted to rolling disc and arch through the wire, utilize the discharge gap between adjacent arch to carry out static consumption, along with the live time increases, protruding surface can form the carbon deposit, influence discharge performance, rolling disc drives protruding rotation this moment, make adjacent arch form effective discharge gap again, resume the discharge capacity, ensure the continuous stable protection to the circuit board. Through setting up the handle and marking the line, handle top width is greater than the bottom, and this kind of design has increased the area of contact with the hand, and the operating personnel of being convenient for adjusts rolling disc and protruding position, because marking the line and corresponding with protruding position, whether the adjacent arch of operating personnel accessible marking the line quick judgment aligns to more conveniently adjust the bellied position on the rolling disc. Through setting up inclined plane one, friction disc and inclined plane two, upper and lower two friction disc laminating are at protruding surface and exert frictional force, and the rolling disc is d