CN216146508U

CN216146508U - PCB with buffering protective structure

Info

Publication number: CN216146508U
Application number: CN202121665527.8U
Authority: CN
Inventors: 张金明
Original assignee: Suzhou Geruizhi Electronic Technology Co ltd
Current assignee: Suzhou Geruizhi Electronic Technology Co ltd
Priority date: 2021-07-21
Filing date: 2021-07-21
Publication date: 2022-03-29
Anticipated expiration: 2031-07-21

Abstract

The utility model discloses a PCB board with a buffer protection structure, which comprises mounting holes and a PCB main board, wherein the inner parts of the PCB main board close to four corners are all provided with the mounting holes, one side of the four mounting holes is provided with an internal reinforcing device, the PCB main board is formed by an epoxy resin basal layer, a copper foil and photoetching composite layer, a prepreg and a copper foil surface layer, the copper foil and photoetching composite layer, the prepreg and the copper foil surface layer are respectively provided with two, the two surfaces of the epoxy resin basal layer are respectively provided with the copper foil and the photoetching composite layer, a novel internal reinforcing device is additionally arranged in the four corners of the PCB board, the novel internal reinforcing device can play a role in reinforcing the PCB board while not influencing the normal use of an internal conductive part of the PCB board, and the whole PCB board is prevented from being easily subjected to layering and cracking after being pressed or excessively bent, thereby being capable of increasing the use stability and the service life of the whole PCB board.

Description

PCB with buffering protective structure

Technical Field

The utility model belongs to the technical field of PCB (printed circuit board) correlation, and particularly relates to a PCB with a buffer protection structure.

Background

The PCB is called as printed circuit board, also called as printed circuit board, is an important electronic component, is a support body of electronic components, is a carrier for electrical interconnection of electronic components, is called as printed circuit board because it is made by adopting electronic printing technology, and is formed from insulating base plate, connecting wire and welding pad for assembling and welding electronic components, and possesses double functions of conductive circuit and insulating base plate, and can be used for replacing complex wiring to implement electrical connection between all components in the circuit.

The prior PCB board technology has the following problems: because the PCB board is made by the lamination compounding of the different base plates of multilayer, after the PCB board receives external force collision and receives excessive bending, the condition that the layering fracture appears easily in the compound PCB board of multilayer, will influence the normal use of whole PCB board like this, can also influence the electrically conductive effect of PCB board simultaneously.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a PCB with a buffering protection structure, which aims to solve the problems that the normal use of the whole PCB is influenced and the conductive effect of the PCB is influenced when a multilayer composite PCB is easily layered and cracked after the PCB is collided by external force and excessively bent in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a PCB board with a buffering protection structure comprises mounting holes and a PCB main board, wherein the inner parts of the PCB main board close to four corners are all provided with the mounting holes, one side of each of the four mounting holes is provided with an inner reinforcing device, the PCB main board is composed of an epoxy resin base layer, a copper foil and photoetching composite layer, prepregs and a copper foil surface layer, the copper foil and photoetching composite layer, the prepregs and the copper foil surface layer are respectively provided with two, the two sides of the epoxy resin base layer are respectively provided with the copper foil and photoetching composite layer, the outer walls of the two copper foils and photoetching composite layers are respectively provided with the prepregs, the outer walls of the two prepregs are respectively provided with the copper foil surface layers, the inner reinforcing device comprises fixing round holes, connecting through holes, cylindrical connecting rods and fixing baffle plates, the two fixing round holes are respectively arranged on the two copper foil surface layers close to the inner corners, two be connected with between the fixed round hole and connect the perforation, connect the perforation and run through two prepregs, two copper foils and photoetching composite bed and epoxy stratum basale respectively, it has the cylinder connecting rod, two to connect fenestrate inside to run through fixed round hole's inside all is embedded to have fixed separation blade, two fixed separation blade cup joints the upper and lower both ends outside at the cylinder connecting rod respectively.

Preferably, the peripheral outer walls of the PCB main board manufactured by laminating and compounding the epoxy resin base layer, the copper foil and the photoetching composite layer, the prepreg and the copper foil surface layer are respectively kept in parallel, and the mutual connection positions of the epoxy resin base layer, the copper foil and the photoetching composite layer, and the prepreg and the copper foil surface layer are all free of bubbles.

Preferably, the surface layer of the copper foil is made of pure copper, and the surface of the surface layer of the copper foil is processed by adopting a grinding and polishing process.

Preferably, the epoxy resin base layer has elasticity and can carry out wide-angle bending, and the epoxy resin base layer can reset and play the cushioning effect through self elasticity after being bent.

Preferably, the mounting hole is a circular hole, the mounting hole completely penetrates through the PCB mainboard, and the inner reinforcement device is arranged on one side of the mounting hole and is not communicated with the mounting hole.

Preferably, the cylinder connecting rod all passes through tin soldering fixed connection with two fixed separation blade, two fixed separation blade homoenergetic is complete embedded in fixed round hole's inside, two the outer wall of fixed separation blade and the surface on two copper foil top layers are parallel and level respectively.

Compared with the prior art, the utility model provides a PCB with a buffer protection structure, which has the following beneficial effects:

1. according to the utility model, the novel internal reinforcing devices are additionally arranged in the four corners of the PCB, the novel internal reinforcing devices can reinforce the whole PCB while not influencing the normal use of the internal conductive parts of the PCB, because the PCB is formed by laminating and compounding a plurality of layers of different substrates, when the PCB is collided by external force and excessively bent, the multilayer compounded PCB is easy to generate the condition of layering cracking, thus the normal use of the whole PCB is influenced, and the conductive effect of the PCB is also influenced, and the internal reinforcing devices can reinforce the multilayer compounded PCB, so that the condition that the PCB is easy to generate layering cracking after being pressed or excessively bent is prevented, and the use stability and the service life of the whole PCB can be improved;

2. the specific principle of the internal reinforcing device of the utility model is that firstly, a connecting through hole of the internal reinforcing device sequentially penetrates through an epoxy resin basal layer, two copper foils, a photoetching composite layer and two prepregs which form a PCB, fixing round holes are respectively connected with two ends of the connecting through hole and are respectively arranged inside two copper foil surface layers, a cylindrical connecting rod penetrates through the inside of the connecting through hole, fixing baffle sheets are respectively fixed on the outer parts of two ends of the cylindrical connecting rod in a sleeved mode through tin soldering, and the two fixing baffle sheets are respectively embedded inside the two fixing round holes, so that a penetrating type connecting rod is formed inside the PCB, the cylindrical connecting rod can penetrate through and connect the inner layer of the PCB, the two fixing baffle sheets can connect and block at two ends, and when the PCB is excessively bent, the internal reinforcing device formed into an I-shaped structure can play a blocking type reinforcing role on two sides of the PCB, therefore, the condition that the PCB is excessively bent to generate layering cracking can be limited, and the PCB can be normally and stably used.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model without limiting the utility model in which:

fig. 1 is a schematic view of an overall three-dimensional structure of a PCB having a buffering protection structure according to the present invention;

fig. 2 is a schematic diagram illustrating a PCB layer number analyzing structure with a buffering protection structure according to the present invention;

fig. 3 is a schematic diagram of a vertical cross-sectional structure of a PCB having a buffering protection structure according to the present invention;

FIG. 4 is a schematic plan view of the inner reinforcement device according to the present invention;

in the figure: 1. mounting holes; 2. a PCB main board; 3. an inner reinforcement device; 4. an epoxy resin substrate layer; 5. copper foil and photoetching composite layer; 6. a prepreg; 7. a copper foil surface layer; 8. fixing the round hole; 9. connecting through holes; 10. a cylindrical connecting rod; 11. and fixing the blocking piece.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1, fig. 2 and fig. 3, the present invention provides a technical solution: a PCB board with a buffering protection structure comprises mounting holes 1 and a PCB main board 2, wherein the mounting holes 1 are all installed inside the PCB main board 2 close to four corners, one side of each of the four mounting holes 1 is provided with an inner reinforcing device 3, the mounting holes 1 are circular holes, the mounting holes 1 completely penetrate through the PCB main board 2, the inner reinforcing devices 3 are arranged on one side of the mounting holes 1 and are not communicated with the mounting holes 1, the mounting holes 1 are mainly used for installing and fixing the whole PCB board, the inner reinforcing devices 3 play a reinforcing role in the inner layer of the PCB board, the inner reinforcing devices and the outer reinforcing role do not interfere with each other, the PCB board can be reinforced and normally used, the PCB main board 2 is composed of an epoxy resin base layer 4, a copper foil and a photoetching composite layer 5, a copper foil 6 and a copper foil surface layer 7, the copper foil and the photoetching composite layer 5, the prepreg 6 and the surface layer 7 are respectively provided with two sides, the copper foil and the photoetching composite layer 5 are arranged on two sides of the epoxy resin base layer 4, prepregs 6 are arranged on the outer walls of the two copper foils and the photoetching composite layer 5, copper foil surface layers 7 are arranged on the outer walls of the two prepregs 6, the epoxy resin base layer 4, the copper foil and the photoetching composite layer 5, the prepregs 6 and the copper foil surface layers 7 are laminated and compounded to form the PCB mainboard 2, the peripheral outer walls are kept flush respectively, the joints of the epoxy resin base layer 4, the copper foil and the photoetching composite layer 5, the prepregs 6 and the copper foil surface layers 7 are free of bubbles, the copper foil surface layers 7 are made of pure copper, the surface of the copper foil surface layers 7 is processed by a grinding and polishing process, the epoxy resin base layer 4 has elasticity and can be bent at a large angle, the epoxy resin base layer 4 can reset through the elasticity and play a role in buffering after being bent, the epoxy resin base layer 4 has excellent toughness and elasticity, and thus the buffering effect of the whole PCB can be improved, thereby can play the guard action to the PCB board.

Example two

Referring to fig. 1, fig. 2, fig. 3, and fig. 4, the present invention provides a technical solution: a PCB board with a buffer protection structure, an inner reinforcing device 3 comprises two fixing round holes 8, two connecting through holes 9, a cylindrical connecting rod 10 and two fixing blocking pieces 11, the two fixing round holes 8 are respectively arranged inside two copper foil surface layers 7 close to corners, the connecting through hole 9 is connected between the two fixing round holes 8, the connecting through hole 9 respectively penetrates through two prepregs 6, two copper foil and photoetching composite layers 5 and an epoxy resin base layer 4, the cylindrical connecting rod 10 penetrates through the inside of the connecting through hole 9, the fixing blocking pieces 11 are embedded inside the two fixing round holes 8, the two fixing blocking pieces 11 are respectively sleeved outside the upper end and the lower end of the cylindrical connecting rod 10, the cylindrical connecting rod 10 and the two fixing blocking pieces 11 are fixedly connected through embedded tin soldering, the two fixing blocking pieces 11 can be completely arranged inside the fixing round holes 8, the outer walls of the two fixing blocking pieces 11 are respectively flush with the surfaces of the two copper foil surface layers 7, two fixed separation blade 11 are embedded respectively in the inside of two fixed round holes 8, then can form into a run-through connecting rod in PCB inboard like this, and cylinder connecting rod 10 can play the through connection effect to PCB inboard layer, and two fixed separation blade 11 then can play at both ends and connect and block the effect, when excessively buckling the PCB board like this, the interior reinforcing apparatus 3 that forms into i-shaped structure can all play at the two sides of PCB board and block formula reinforcing effect, thereby can restrict the PCB board excessively buckle and the condition that produces the layering fracture appears.

The working principle and the using process of the utility model are as follows: after the installation, when the PCB with the buffer protection structure is assembled and used, firstly, the epoxy resin base layer 4 with the buffer function is used as a base layer of the PCB mainboard 2, then, two copper foils and the photoetching composite layer 5 are laminated and compounded on two sides of the epoxy resin base layer 4 respectively, then, two prepregs 6 are laminated and compounded on the outer walls of the two copper foils and the photoetching composite layer 5 respectively, then, two copper foil surface layers 7 are compounded on the outer walls of the two prepregs 6 respectively, so that a complete PCB can be formed, then, the installation holes 1 are drilled in the positions, close to the four corners, of the PCB mainboard 2 through special drilling equipment, the installation holes 1 can be used for conveniently installing and fixing the whole PCB, and finally, the whole PCB can be normally used.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a PCB board with buffering protective structure, includes mounting hole (1) and PCB mainboard (2), its characterized in that: PCB mainboard (2) is close to inside all installing mounting hole (1), four of four corners department one side of mounting hole (1) all is provided with interior reinforcing apparatus (3), PCB mainboard (2) is equallyd divide by epoxy resin stratum basale (4), copper foil and photoetching composite bed (5), prepreg (6) and copper foil top layer (7) and constitutes jointly, the copper foil is equallyd divide with photoetching composite bed (5), prepreg (6) and copper foil top layer (7) and do not is provided with two, epoxy resin stratum basale (4) two sides all is provided with copper foil and photoetching composite bed (5), two all be provided with prepreg (6) on the outer wall of copper foil and photoetching composite bed (5), two all be provided with copper foil top layer (7) on the outer wall of prepreg (6), interior reinforcing apparatus (3) are including fixed round hole (8), connect perforation (9), Cylinder connecting rod (10) and fixed separation blade (11), fixed round hole (8) are provided with two, two inside fixed round hole (8) set up respectively and are close to the corner on two copper foil top layers (7), two be connected with between fixed round hole (8) and connect perforation (9), connect perforation (9) and run through two prepreg (6), two copper foils and photoetching composite bed (5) and epoxy stratum basale (4) respectively, the inside of connecting perforation (9) is run through there are cylinder connecting rod (10), two fixed round hole (8) inside all is embedded to have fixed separation blade (11), two fixed separation blade (11) cup joint respectively in the upper and lower both ends outside of cylinder connecting rod (10).

2. The PCB board with the buffering protection structure as claimed in claim 1, wherein: the PCB is characterized in that the outer walls of the periphery of the PCB are kept flush after the epoxy resin base layer (4), the copper foil and the photoetching composite layer (5), the prepreg (6) and the copper foil surface layer (7) are laminated and compounded to form the PCB main board (2), and the interconnection positions of the epoxy resin base layer (4), the copper foil and the photoetching composite layer (5), the prepreg (6) and the copper foil surface layer (7) are all bubble-free.

3. The PCB board with the buffering protection structure as claimed in claim 1, wherein: the copper foil surface layer (7) is made of pure copper, and the surface of the copper foil surface layer (7) is processed by adopting a grinding and polishing process.

4. The PCB board with the buffering protection structure as claimed in claim 1, wherein: the epoxy resin substrate layer (4) has elasticity and can be bent at a large angle, and the epoxy resin substrate layer (4) can reset through the elasticity of the epoxy resin substrate layer and play a role in buffering after being bent.

5. The PCB board with the buffering protection structure as claimed in claim 1, wherein: the mounting hole (1) is a circular hole, the mounting hole (1) completely penetrates through the PCB main board (2), and the inner reinforcing device (3) is arranged on one side of the mounting hole (1) and is not communicated with the mounting hole (1).

6. The PCB board with the buffering protection structure as claimed in claim 1, wherein: the cylinder connecting rod (10) and two fixed separation blade (11) all through tin soldering fixed connection, two fixed separation blade (11) homocan be complete embedded in the inside of fixed round hole (8), two the outer wall of fixed separation blade (11) and the surperficial parallel and level respectively of two copper foil top layers (7).