CN212381461U - PCB circuit board capable of automatically releasing stress - Google Patents

Abstract

The utility model discloses a but PCB circuit board of automatic release stress, which comprises a fixing plate and i, fixed mounting anticollision frame on the fixed plate, a plurality of connecting rods of anticollision frame inner wall fixed mounting, the connecting rod encircles the even equidistance setting of anticollision frame inner wall level, connecting rod one end and anticollision frame inner wall fixed connection, the connecting rod other end and base plate sliding connection, the base plate lateral wall corresponds connecting rod department and has seted up the mounting hole, the mounting hole internal connection holds the chamber, it is close to outer wall department inside the base plate to hold the chamber setting, the connecting rod is kept away from anticollision frame one end and is run through the mounting hole, the connecting rod passes mounting hole one. The utility model discloses an elastic polyurethane plastic pole is connected PCB circuit board base plate and anticollision frame, can all have better guard action to vertical and horizontal direction's extrusion, and the fixed plate of circuit board base plate below has seted up the louvre, can assist the circuit board heat dissipation.

Description

PCB circuit board capable of automatically releasing stress

Technical Field

The utility model relates to a PCB circuit board field, specific but PCB circuit board of automatic release stress.

Background

Pcb (printed circuit board), i.e. printed wiring board, printed circuit board for short, is one of the important parts in the electronics industry. Almost every kind of electronic equipment, as small as electronic watches, calculators, as large as computers, communication electronics, military weaponry systems, has electronic components such as integrated circuits, and printed boards are used to electrically interconnect the various components. The printed circuit board consists of an insulating bottom plate, a connecting lead and a welding disc for assembling and welding electronic elements, and has double functions of a conductive circuit and the insulating bottom plate. The circuit can replace complex wiring to realize electrical connection among elements in the circuit, thereby simplifying the assembly and welding work of electronic products, reducing the wiring workload in the traditional mode and greatly lightening the labor intensity of workers; and the volume of the whole machine is reduced, the product cost is reduced, and the quality and the reliability of the electronic equipment are improved. The printed circuit board has good product consistency, can adopt standardized design, and is beneficial to realizing mechanization and automation in the production process. Meanwhile, the whole printed circuit board subjected to assembly and debugging can be used as an independent spare part, so that the exchange and maintenance of the whole product are facilitated.

The common PCB generally has no stress release function, and is easily damaged when being subjected to vertical or horizontal extrusion force, thereby affecting the use. The patent that publication number is CN209964369U discloses a PCB circuit board with stress release function, which comprises a circuit board, fixedly connected with connecting plate on the both sides outer wall of circuit board, the dovetail groove has been seted up to the last lateral wall of connecting plate, vertical subassembly between two dovetail grooves, vertical subassembly including be located the dovetail groove and with dovetail groove assorted dovetail block, the last lateral wall of two dovetail blocks is fixed with the extrusion strip of being made by elastic metal jointly, it is provided with logical groove to run through on the connecting plate, be equipped with horizontal assembly between two logical grooves, horizontal assembly includes that two symmetries set up the U type pole in the connecting plate outside. The device extrudees the release of the stress that the expanding spring extruded and produce through the deformation of extrusion strip and the removal of U type pole and offsets, and the structure is complicated, leads to the whole bulky too big of PCB circuit board, and the device passes through U type pole and wraps up the circuit board, can lead to circuit board thermal diffusivity variation, burns out electronic component on the circuit board easily.

SUMMERY OF THE UTILITY MODEL

For solving the not enough of mentioning in the above-mentioned background art, the utility model aims to provide a but PCB circuit board of automatic release stress is connected PCB circuit board base plate and anticollision frame through elastic polyurethane plastic pole, can all have better guard action to vertical and horizontal direction's extrusion, and the louvre has been seted up to the fixed plate of circuit board base plate below, can assist the circuit board heat dissipation.

The purpose of the utility model can be realized by the following technical scheme:

the utility model provides a but PCB circuit board of automatic release stress, which comprises a fixing plate and i, fixed mounting anticollision frame on the fixed plate, a plurality of connecting rods of anticollision frame inner wall fixed mounting, the connecting rod encircles the even equidistance setting of anticollision frame inner wall level, connecting rod one end and anticollision frame inner wall fixed connection, the connecting rod other end and base plate sliding connection, the base plate lateral wall corresponds connecting rod department and has seted up the mounting hole, the mounting hole internal connection holds the chamber, it is close to outer wall department inside the base plate to hold the chamber setting, the connecting rod is kept away from anticollision frame one end and is run through the mounting hole, the connecting rod.

Further preferably, a plurality of heat dissipation holes are formed in the middle of the fixing plate, and the heat dissipation holes are arranged on the surface of the fixing plate inside the anti-collision frame in a rectangular array mode.

Further preferably, the anti-collision frame is an annular steel frame body, the thickness of the anti-collision frame is 1-2mm, the shape of the anti-collision frame is matched with the substrate, and the distance between the inner wall of the anti-collision frame and the substrate is 2-5 mm.

Further preferably, the connecting rod is a polyurethane plastic rod.

Further preferably, the top of the substrate is provided with a circuit layer, the top of the circuit layer is flush with the top of the anti-collision frame, and the bottom of the substrate is fixedly provided with a heat-conducting plate.

The utility model has the advantages that:

the utility model discloses circuit board substrate lateral wall passes through the connecting rod to be connected with anticollision frame, and pressure makes anticollision frame produce deformation when the horizontal direction extrudees the circuit board, and anticollision frame promotes the connecting rod and slides along the mounting hole, can avoid the direct extrusion base plate, and when vertical direction extrusion circuit board, pressure makes the base plate displacement downwards, because the connecting rod is elastic polyurethane pole, plays certain cushioning effect to the base plate, all has better guard action to vertical and horizontal direction's extrusion. Just the utility model discloses seted up a plurality of louvres in the middle of the fixed plate, base plate bottom fixed mounting heat-conducting plate, the heat that electrical components on the base plate produced can spread through heat-conducting plate and louvre department, improves the radiating effect of high volume circuit board.

Drawings

The present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a disassembled schematic view of the present invention;

fig. 3 is a schematic top view of the present invention;

FIG. 4 is a front view of the present invention;

fig. 5 is an enlarged schematic view of the present invention at a position a in fig. 4.

In the figure:

1-fixing plate, 2-anti-collision frame, 3-connecting rod, 4-substrate, 5-mounting hole, 6-accommodating cavity, 7-limiting block, 8-radiating hole, 9-circuit layer and 10-heat-conducting plate

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

As shown in fig. 1-5, a PCB circuit board capable of releasing stress automatically, including fixed plate 1, fixed mounting anticollision frame 2 on fixed plate 1, a plurality of connecting rods 3 of 2 inner wall fixed mounting of anticollision frame, connecting rod 3 encircles the even equidistance setting of 2 inner wall levels of anticollision frame, 3 one end of connecting rod and 2 inner wall fixed connection of anticollision frame, the connecting rod 3 other end and 4 sliding connection of base plate, 4 lateral walls of base plate correspond connecting rod 3 department and have seted up mounting hole 5, 5 internal connection in mounting hole holds chamber 6, it sets up in 4 inside outer wall departments that are close to of base plate to hold chamber 6, connecting rod 3 is kept away from 2 one end of anticollision frame and is run through mounting hole 5, connecting rod 3 passes 5 one end fixed mounting stopper.

A plurality of heat dissipation holes 8 are formed in the middle of the fixing plate 1, and the heat dissipation holes 8 are arranged on the surface of the fixing plate 1 inside the anti-collision frame 2 in a rectangular array mode.

The anti-collision frame 2 is an annular steel frame body, the thickness of the anti-collision frame 2 is 1-2mm, the shape of the anti-collision frame 2 is matched with the base plate 4, and the distance between the inner wall of the anti-collision frame 2 and the base plate 4 is 2-5 mm.

The connecting rod 3 is a polyurethane plastic rod.

The top of base plate 4 is equipped with circuit layer 9, and the top on circuit layer 9 flushes with 2 tops of anticollision frame, and base plate 4 bottom fixed mounting heat-conducting plate 10.

The working principle is as follows:

the utility model discloses 4 lateral walls of circuit board base plate pass through connecting rod 3 and are connected with crashproof frame 2, wherein connecting rod 3, connecting rod 3 is kept away from crashproof frame 2 one end and is run through mounting hole 5, connecting rod 3 passes 5 one end fixed mounting stoppers 7 of mounting hole, pressure makes crashproof frame 2 produce deformation when the horizontal direction extrudees the circuit board, crashproof frame 2 promotes connecting rod 3 and slides along mounting hole 5, can avoid direct extrusion base plate 4, crashproof frame 2 resumes to original shape under the effect of self stress after pressure disappears, thereby pulling connecting rod 3 is fixed to base plate 4, when vertical direction extrusion circuit board, pressure makes base plate 4 displacement downwards, because connecting rod 3 is elastic polyurethane pole, play certain cushioning effect to base plate 4, pressure disappears back connecting rod 3 can stimulate base plate 4 to original position.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims (5)

1. A PCB circuit board capable of automatically releasing stress is characterized by comprising a fixing plate (1), an anti-collision frame (2) is fixedly arranged on the fixing plate (1), a plurality of connecting rods (3) are fixedly arranged on the inner wall of the anti-collision frame (2), the connecting rods (3) are horizontally, uniformly and equidistantly arranged around the inner wall of the anti-collision frame (2), one end of the connecting rod (3) is fixedly connected with the inner wall of the anti-collision frame (2), the other end of the connecting rod (3) is connected with the base plate (4) in a sliding way, the side wall of the base plate (4) is provided with a mounting hole (5) corresponding to the connecting rod (3), the inner part of the mounting hole (5) is connected with an accommodating cavity (6), the accommodating cavity (6) is arranged at the position close to the outer wall in the base plate (4), one end of the connecting rod (3) far away from the anti-collision frame (2) penetrates through the mounting hole (5), the connecting rod (3) penetrates through one end of the mounting hole (5) to fixedly mount a limiting block (7).

2. The PCB circuit board capable of automatically releasing stress according to claim 1, wherein a plurality of heat dissipation holes (8) are formed in the middle of the fixing plate (1), and the heat dissipation holes (8) are arranged on the surface of the fixing plate (1) inside the anti-collision frame (2) in a rectangular array.

3. The PCB circuit board capable of automatically releasing stress according to claim 1, wherein the anti-collision frame (2) is an annular steel frame body, the thickness of the anti-collision frame (2) is 1-2mm, the shape of the anti-collision frame (2) is matched with the substrate (4), and the distance between the inner wall of the anti-collision frame (2) and the substrate (4) is 2-5 mm.

4. The PCB circuit board capable of automatically releasing stress according to claim 1, wherein the connection bar (3) is a polyurethane plastic bar.

5. The PCB circuit board capable of automatically releasing stress according to claim 1, wherein a circuit layer (9) is arranged on the top of the substrate (4), the top of the circuit layer (9) is flush with the top of the anti-collision frame (2), and a heat conduction plate (10) is fixedly arranged on the bottom of the substrate (4).

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