CN211959663U

CN211959663U - PCB board protection component

Info

Publication number: CN211959663U
Application number: CN202021037593.6U
Authority: CN
Inventors: 杜兵
Original assignee: Suzhou Denabao Electronic Technology Co ltd
Current assignee: Suzhou Denabao Electronic Technology Co ltd
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2020-11-17
Anticipated expiration: 2030-06-08

Abstract

The utility model discloses a PCB board protection component, the PCB board is rectangular, mounting holes are arranged at four corners of the edge of the PCB board, and the protection component comprises a metal connecting column, a temperature-resistant rubber sleeve and a carbon fiber backboard; the metal connecting column is inserted into the mounting hole and is provided with a connecting end and a limiting end, the connecting end penetrates through the mounting hole, the end part of the limiting end is connected with a circular limiting sheet, the circular limiting sheet is pressed against the surface of the PCB, and a threaded hole is formed in the end part of the connecting end along the axial direction of the connecting end; the circular limiting sheet is abutted against the surface of the PCB, so that the stress area of the circular limiting sheet and the peripheral edge of the PCB mounting hole is increased, the pressure intensity of the circular limiting sheet and the peripheral edge of the PCB mounting hole when the circular limiting sheet and the PCB mounting hole are extruded is reduced, the mounting hole is protected, and holes or fracture caused by overlarge stress of the circular limiting sheet are avoided.

Description

PCB board protection component

Technical Field

The utility model relates to a PCB field, concretely relates to PCB board protection component.

Background

Pcb (printed Circuit board), which is called printed Circuit board in chinese, is an important electronic component, which is a support for electronic components and a carrier for electrical connection. It is called a "printed" circuit board because it is made using electronic printing.

When current PCB board is fixed in the equipment casing in the installation, it is directly fixed on the casing of equipment through the double-screw bolt tightening usually, it receives the extrusion or when striking at equipment shell, owing to lack corresponding buffer structure, the anti bending property of PCB board is relatively poor, the PCB board easily produces the bending, threaded connection hole and double-screw bolt rigid contact on the PCB simultaneously, produce opening or fracture easily, thereby directly cause the damage of PCB board, lead to the PCB board can not restore when serious, bring economic loss for the user.

Therefore, how to solve the defects of the prior art is a subject of the present invention.

Disclosure of Invention

In order to solve the problem, the utility model discloses a PCB board protection component.

In order to achieve the above purpose, the utility model provides a following technical scheme: a PCB protection assembly is rectangular, mounting holes are formed in four corners of the edge of the PCB, and the protection assembly comprises a metal connecting column, a temperature-resistant rubber sleeve and a carbon fiber back plate;

the metal connecting column is inserted into the mounting hole and is provided with a connecting end and a limiting end, the connecting end penetrates through the mounting hole, the end part of the limiting end is connected with a circular limiting sheet, the circular limiting sheet is pressed against the surface of the PCB, and a threaded hole is formed in the end part of the connecting end along the axial direction of the connecting end;

the temperature-resistant rubber sleeve is sleeved on the connecting end of the metal connecting column and is positioned between the metal connecting column and the hole wall of the mounting hole;

the carbon fiber backplate with the PCB board sets up relatively, and the marginal four corners of this carbon fiber backplate corresponds each the mounting hole is fixedly connected with support column respectively, seted up a through-hole along its axial on the support column, the through-hole runs through the carbon fiber backplate, wears to be equipped with a screw in this through-hole, the link of metal connecting post inserts in the through-hole, the screw thread end of screw is twisted and is in the screw hole of link, the support column with still be provided with compression spring between the PCB board, and the outer wall of temperature resistant rubber sleeve is located to the compression spring cover, a plurality of ventilation holes have evenly been seted up on the surface of carbon fiber backplate.

As an improvement of the utility model, the spacing groove has been seted up at the top of support column, the bottom of temperature resistant rubber sleeve is inserted in the spacing groove.

As an improvement of the utility model, correspond on the carbon fiber backplate the intermediate part of PCB board is provided with an elastic support piece, and the top of this elastic support piece supports and leans on the PCB board, the elastic support piece is the silica gel supporting shoe.

As an improvement of the utility model, the size of the carbon fiber back plate is greater than the size of the PCB plate.

As an improvement of the utility model, the metal connecting column is a red copper column.

Compared with the prior art, the utility model has the advantages of as follows: the utility model discloses wear to be equipped with the metal connecting post in the mounting hole of PCB board, be provided with temperature resistant rubber sleeve between this metal connecting post and the mounting hole, it has good elasticity and can play the cushioning effect, when receiving the vibration, can alleviate the influence that the vibration produced to the PCB board, have a circular spacing piece on the metal connecting post simultaneously, this circular spacing piece supports and leans on the surface of PCB board, increased its and PCB board mounting hole edge around the area of force, reduced its pressure that receives when receiving the extrusion, the protection mounting hole, avoid its atress too big to produce the breach or fracture; the carbon fiber back plate and the PCB are arranged oppositely and fixed together through the screws, and the carbon fiber back plate has the characteristics of high strength and light weight, so that the overall weight of the protection assembly can be reduced, and a good supporting effect can be formed on the PCB when the PCB is bent under an external force, and the bending resistance of the PCB is improved; a plurality of ventilation holes are uniformly formed in the carbon fiber back plate, so that the ventilation and heat dissipation capacity of the PCB can be improved; the support column of carbon fiber backplate with still be provided with compression spring between the PCB board, this compression spring can cushion the effect of metal connecting column axial upward force, further plays the guard action to it.

Drawings

Fig. 1 is a perspective view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a front view of the carbon fiber back plate of fig. 1.

List of reference numerals: 100-a PCB board; 200-metal connecting column; 201-circular limiting piece; 202-a threaded hole; 300-temperature resistant rubber sleeve; 400-a carbon fiber back sheet; 401-support column; 402-a via; 403-screws; 404-a compression spring; 405-a vent.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Example (b): referring to fig. 1-3, a PCB board protection assembly, wherein a PCB board 100 is rectangular, four corners of the edge of the PCB board 100 are provided with mounting holes, and the protection assembly comprises a metal connecting column 200, a temperature-resistant rubber sleeve 300 and a carbon fiber backboard 400;

the metal connecting column 200 is inserted into the mounting hole, the metal connecting column 200 is provided with a connecting end and a limiting end, the connecting end penetrates through the mounting hole, the end part of the limiting end is connected with a circular limiting sheet 201, the circular limiting sheet 201 is pressed against the surface of the PCB 100, and the end part of the connecting end is provided with a threaded hole 202 along the axial direction;

the temperature-resistant rubber sleeve 300 is sleeved on the connecting end of the metal connecting column 200 and is positioned between the metal connecting column 200 and the hole wall of the mounting hole; the temperature-resistant rubber sleeve 300 is made of polytetrafluoroethylene rubber, the PCB 100 can generate heat during working, and the polytetrafluoroethylene rubber sleeve has good high-temperature resistance and can prolong the service life of the PCB;

the carbon fiber backboard 400 is arranged opposite to the PCB 100, four corners of the edge of the carbon fiber backboard 400 are respectively and fixedly connected with supporting columns 401 corresponding to the mounting holes, a through hole 402 is formed in each supporting column 401 along the axial direction of the supporting column, the through hole 402 penetrates through the carbon fiber backboard 400, a screw 403 penetrates through the through hole 402, the connecting end of the metal connecting column 200 is inserted into the through hole 402, the threaded end of the screw 403 is screwed into the threaded hole 202 of the connecting end, a compression spring 404 is further arranged between each supporting column 401 and the PCB 100, the compression spring 404 is sleeved on the outer wall of the temperature-resistant rubber sleeve 300, and a plurality of vent holes 405 are uniformly formed in the surface of the;

the temperature-resistant rubber sleeve 300 is arranged between the metal connecting column 200 and the mounting hole, has good elasticity and can play a role in buffering, when the temperature-resistant rubber sleeve is vibrated, the influence of vibration on the PCB 100 can be reduced, meanwhile, the metal connecting column 200 is provided with the circular limiting sheet 201, the circular limiting sheet 201 is abutted against the surface of the PCB 100, the stress area of the circular limiting sheet and the peripheral edge of the mounting hole of the PCB 100 is increased, the pressure intensity of the circular limiting sheet when the circular limiting sheet is extruded is reduced, the mounting hole is protected, and holes are prevented from being broken or fractured due to overlarge stress; the carbon fiber back plate 400 and the PCB 100 are oppositely arranged and fixed together through the screws 403, and the carbon fiber back plate 400 has the characteristics of high strength and light weight, so that on one hand, the overall weight of the protection assembly can be reduced, on the other hand, when the PCB 100 is bent by external force, a good supporting effect can be formed on the PCB 100, and the bending resistance of the PCB 100 is improved; a plurality of vent holes 405 are uniformly formed in the carbon fiber back plate 400, so that the ventilation and heat dissipation capacity of the PCB 100 can be improved; a compression spring 404 is further arranged between the support column 401 of the carbon fiber backboard 400 and the PCB board 100, and the compression spring 404 can buffer the action of the axial upward force of the metal connecting column 200, so as to further protect the metal connecting column.

The spacing groove has been seted up at the top of support column 401, and the bottom of temperature resistant rubber sleeve 300 inserts in the spacing groove, and the spacing groove is used for fixing temperature resistant rubber sleeve 300.

An elastic supporting block is arranged on the carbon fiber backboard 400 corresponding to the middle part of the PCB 100, the top of the elastic supporting block is abutted against the PCB 100, the elastic supporting block is a silica gel supporting block, the elastic supporting block can support the middle part of the PCB 100, and the middle of the PCB 100 is prevented from being stressed and bent.

The size of the carbon fiber back plate 400 is larger than that of the PCB board 100.

The metal connection posts 200 are copper posts, and the copper posts are relatively soft, so that the possibility that the PCB 100 is damaged by the metal connection posts 200 due to extrusion can be reduced.

The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by the arbitrary combination of the above technical features. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also considered as the protection scope of the present invention.

Claims

1. The utility model provides a PCB board protection component, PCB board (100) are the rectangle form, and the mounting hole, its characterized in that have all been seted up in the edge four corners of this PCB board (100): the protection component comprises a metal connecting column (200), a temperature-resistant rubber sleeve (300) and a carbon fiber backboard (400);

the metal connecting column (200) is inserted into the mounting hole, the metal connecting column (200) is provided with a connecting end and a limiting end, the connecting end penetrates through the mounting hole, the end part of the limiting end is connected with a circular limiting sheet (201), the circular limiting sheet (201) is pressed on the surface of the PCB (100), and a threaded hole (202) is formed in the end part of the connecting end along the axial direction of the connecting end;

the temperature-resistant rubber sleeve (300) is sleeved on the connecting end of the metal connecting column (200) and is positioned between the metal connecting column (200) and the hole wall of the mounting hole;

the carbon fiber backboard (400) and the PCB (100) are arranged oppositely, four corners of the edge of the carbon fiber backboard (400) correspond to the mounting holes and are fixedly connected with supporting columns (401) respectively, a through hole (402) is formed in the supporting column (401) along the axial direction of the supporting column, the through hole (402) penetrates through the carbon fiber backboard (400), a screw (403) penetrates through the through hole (402), the connecting end of the metal connecting column (200) is inserted into the through hole (402), the threaded end of the screw (403) is screwed into the threaded hole (202) of the connecting end, a compression spring (404) is further arranged between the supporting column (401) and the PCB (100), the compression spring (404) is sleeved on the outer wall of the temperature-resistant rubber sleeve (300), and a plurality of ventilation holes (405) are formed in the surface of the carbon fiber backboard (400) uniformly.

2. A PCB board protection assembly according to claim 1, wherein: the top of the supporting column (401) is provided with a limiting groove, and the bottom end of the temperature-resistant rubber sleeve (300) is inserted into the limiting groove.

3. A PCB board protection assembly according to claim 1, wherein: an elastic supporting block is arranged on the carbon fiber back plate (400) corresponding to the middle part of the PCB (100), the top of the elastic supporting block abuts against the PCB (100), and the elastic supporting block is a silica gel supporting block.

4. A PCB board protection assembly according to claim 1, wherein: the size of the carbon fiber back plate (400) is larger than that of the PCB (100).

5. A PCB board protection assembly according to claim 1, wherein: the temperature-resistant rubber sleeve (300) is a polytetrafluoroethylene rubber sleeve.

6. A PCB board protection assembly according to claim 1, wherein: the metal connecting column (200) is a red copper column.