CN215187923U

CN215187923U - Mounting structure of multilayer PCB board

Info

Publication number: CN215187923U
Application number: CN202121386548.6U
Authority: CN
Inventors: 王宏; 欧阳辉绵; 吴清清; 姚新平
Original assignee: Jiangxi Redboard Technology Co Ltd
Current assignee: Jiangxi Redboard Technology Co Ltd
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2021-12-14
Anticipated expiration: 2031-06-22

Abstract

The utility model discloses a mounting structure of a multilayer PCB, which comprises more than two layers of PCBs, wherein each layer of PCB is provided with a mounting hole, and all PCBs are stacked, mounted and positioned through a stacking and stringing positioning assembly; wherein: the stacking string positioning assemblies are more than two, and each stacking string positioning assembly comprises a tandem connection rubber nail and a rubber mat with a hole; the tandem connection rubber nail is provided with a cap part and a rod part extending upwards from the top end of the cap part; the rod part penetrates through the corresponding mounting holes of the PCB plates from top to bottom, and the rubber pad with the hole is sleeved on the rod part and is arranged between the PCB plates which are adjacent from top to bottom at intervals; the top of the PCB plate on the uppermost layer is provided with a perforated spacer for the upper end of the rod part to pass through, and the upper end of the rod part is positioned on the perforated spacer through hot melting and riveting; the PCB is installed in a laminated mode, occupied space is saved, the structure is simple, installation and positioning are convenient, laminated intervals are easy to control, and the PCB is suitable for batch production.

Description

Mounting structure of multilayer PCB board

Technical Field

The utility model relates to a PCB board installation application field technique especially indicates a mounting structure of multilayer PCB board.

Background

At present, the PCB is generally applied to electronic products, and the area of the PCB determines the size of the mounting area of the PCB because the PCB is a flat structure. In order to reduce the size of the electronic product or facilitate layout and installation of other components in the electronic product, those skilled in the art consider that a plurality of PCB boards are stacked to save the space occupied by the PCB boards.

However, the PCB board of traditional stromatolite installation, the installation location structure is comparatively complicated, some fix a position each layer PCB board with the help of complicated frame, be equivalent to the PCB board is located the supporter, the frame is with high costs, to not unidimensional PCB board, need the not frame of special design unidimensional, also some utilize the telescopic link to connect between adjacent PCB board, compare frame construction, its structure is a little simpler, but, because its telescopic link comprises last flexible post, lower flexible post and layer isotructure that absorbs water, the production preparation is still more complicated, it is more troublesome to operate when stromatolite installation PCB board, and, although the telescopic link can realize flexible regulation, when actual installation uses, flexible height dimension uniformity is difficult to control, lead to the setting level degree of PCB board difficult assurance, be not suitable for mass production and application.

Therefore, in the present invention, the applicant has studied a new technical solution to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the disappearance that prior art exists, its main objective provides a mounting structure of multilayer PCB board, and it saves occupation space with PCB board stack installation, simple structure, and the installation location is convenient, and the stromatolite interval is easily controlled, is suitable for mass production.

In order to realize the purpose, the following technical scheme is adopted:

a mounting structure of a multilayer PCB comprises more than two layers of PCBs, each layer of PCB is provided with a mounting hole, and all the PCBs are stacked, mounted and positioned through a stacking and stringing positioning assembly; wherein:

the stacking string positioning assemblies are more than two, and each stacking string positioning assembly comprises a tandem connection rubber nail and a rubber mat with a hole; the tandem connection rubber nail is provided with a cap part and a rod part extending upwards from the top end of the cap part; the rod part penetrates through the corresponding mounting holes of the PCB plates from top to bottom, and the rubber pad with the hole is sleeved on the rod part and is arranged between the PCB plates which are adjacent from top to bottom at intervals;

and the top of the uppermost layer of the PCB board is provided with a perforated spacer for the upper end of the rod part to pass through, and the upper end of the rod part is positioned on the perforated spacer through hot melting riveting.

Further, the perforated partition is a high-temperature resistant insulating sheet.

Furthermore, the rubber mat with the holes is a soft rubber mat.

Further, the thickness of the rubber mat with holes is larger than that of the isolating sheet with holes.

Furthermore, the periphery of the upper end of the rubber mat with holes extends outwards to form a widened part, so that the upper end face of the rubber mat with holes is larger than the lower end face of the rubber mat with holes, and the upper end face of the rubber mat with holes is a horizontal plane.

Further, the stem portion is centrally disposed on the top end of the cap portion.

Furthermore, one side of the top end of each layer of PCB board is fixedly connected with a flat cable, and the free end of the flat cable is provided with a pluggable interface.

Furthermore, the flat cables of adjacent PCBs are inserted through the interfaces of the adjacent PCBs so as to connect all the PCBs into a whole, and one side of the top end of at least one layer of PCB is fixedly connected with an external connecting wire.

Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme, its design through folding cluster locating component, only need be provided with the mounting hole on the PCB board, the utilization concatenates the mounting hole that the plastic pin passed the PCB board in proper order, every one deck PCB board cover of passing is established a foraminiferous cushion and is used for keeping adjacent PCB board interval, at the PCB board top of superiors, utilize foraminiferous spacing piece to make the isolation, make things convenient for pole portion upper end to rivet through the hot melt and press the location of reaching pole portion upper end superiors in the PCB board above the foraminiferous spacing piece, so, simply realize the stromatolite installation to multilayer PCB board, save PCB board occupation space, especially, its simple structure who folds cluster locating component, the installation location is convenient, the stromatolite interval is easily controlled, change different foraminiferous cushions can, the flexibility is strong, be suitable for mass production.

To more clearly illustrate the structural features and functions of the present invention, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments:

drawings

FIG. 1 is a perspective sectional view of a first embodiment of the present invention;

fig. 2 is a cross-sectional view of a first embodiment of the present invention (the upper end of the rod portion is hot-melt riveted);

fig. 3 is a cross-sectional view of a first embodiment of the present invention (the upper end of the rod portion has not been heat staked);

FIG. 4 is an exploded view of a first embodiment of the present invention;

fig. 5 is a cross-sectional view of a second embodiment of the present invention (the upper end of the rod portion is hot-melt riveted);

fig. 6 is a cross-sectional view of a second embodiment of the present invention (the upper end of the rod part is not hot-melt riveted);

FIG. 7 is an exploded view of a second embodiment of the present invention;

fig. 8 is a perspective sectional view (with flat cable) of the first embodiment of the present invention;

fig. 9 is a perspective sectional view (with flat cables and external wires) of a first embodiment of the present invention.

The attached drawings indicate the following:

PCB board 1

Tandem connection rubber nail 2

Cap 201

Rod part 202

Riveting block 21

Rubber mat with holes 3

Widened portion 31

Perforated spacer 4

Flat cable 5

Interface 51

External connection 6

Detailed Description

Fig. 1 to 9 show specific structures of various embodiments of the present invention.

A mounting structure of a multilayer PCB comprises more than two layers of PCBs (printed circuit boards) 1, wherein each layer of PCB 1 is provided with a mounting hole, and all the PCBs 1 are stacked, mounted and positioned through a stacking and stringing positioning assembly; wherein:

the number of the stacking string positioning assemblies is more than two, and each stacking string positioning assembly comprises a tandem connection rubber nail 2 and a rubber mat 3 with holes; the tandem connection rubber nail 2 is provided with a cap part 201 and a rod part 202 extending upwards from the top end of the cap part 201, and the rod part 202 is centrally arranged at the top end of the cap part 201; the rod part 202 penetrates through the corresponding mounting holes of the PCB boards 1, and the rubber pad with holes 3 is sleeved on the rod part 202 and is arranged between the adjacent PCB boards 1 at intervals;

and the top of the uppermost PCB 1 is provided with a perforated spacer 4 for the upper end of the rod 202 to pass through, the upper end of the rod 202 is positioned on the perforated spacer 4 by hot-melt riveting, as shown in fig. 1 and 2, the upper end of the rod 202 forms a riveting block 21 after hot-melt riveting, and the size of the riveting block 21 is larger than that of the rod 202.

Typically, the perforated separator 4 is a high temperature resistant insulating sheet. The rubber mat 3 with holes is a soft rubber mat. The thickness of the porous rubber cushion 3 is larger than that of the porous isolating sheet 4. The distance between the adjacent PCB boards 1 can be controlled by selecting the perforated rubber pads 3 with different thicknesses, and the distance between the adjacent PCB boards 1 can be the same or different for the whole group of PCB boards 1.

In view of the convenience of sucking the perforated rubber mat 3, as shown in fig. 5 to 7, the upper end periphery of the perforated rubber mat 3 is extended with a widened portion 31 so that the upper end surface of the perforated rubber mat 3 is larger than the lower end surface, and the upper end surface of the perforated rubber mat 3 is a horizontal surface.

As shown in fig. 8, one side of the top end of each layer of PCB 1 is fixedly connected to the flat cable 5, and the free end of the flat cable 5 is provided with a pluggable interface 51. The interfaces 51 of the flat cables 5 of each layer of the PCB 1 may be electrically connected to the corresponding components, or as shown in fig. 9, the flat cables 5 of the adjacent PCB 1 are inserted through the interfaces 51 of the two, so as to connect all the PCBs 1 to form a whole, and one side of the top end of at least one layer of the PCB 1 is further fixedly connected with the external connection line 6.

The utility model discloses a design is emphasized, its design through folding cluster locating component, only need be provided with the mounting hole on PCB board 1, utilize to concatenate the mounting hole that the staple 2 passed PCB board 1 in proper order, every pass 1 cover of one deck PCB board and establish a band hole cushion 3 and be used for keeping adjacent PCB board 1 interval, at 1 top of PCB board in the superiors, utilize foraminiferous spacing block 4 to make the isolation, make things convenient for pole portion 202 upper end to rivet through the hot melt and press and fix a position in the location of reaching pole portion 202 upper end in superiors PCB board 1 above foraminiferous spacing block 4, so, simply realize the stromatolite installation to multilayer PCB board 1, save PCB board 1 occupation space, especially, its simple structure who folds cluster locating component, the installation location is convenient, the stromatolite interval is easily controlled, change different foraminiferous cushions 3 can, the flexibility commonality is strong, be suitable for mass production.

Claims

1. The utility model provides a mounting structure of multilayer PCB board which characterized in that: the PCB structure comprises more than two layers of PCBs, each layer of PCB is provided with a mounting hole, and all the PCBs are stacked, mounted and positioned through a stacking and stringing positioning assembly; wherein:

2. A mounting structure of a multi-layered PCB board according to claim 1, wherein: the porous isolating sheet is a high-temperature-resistant insulating sheet.

3. A mounting structure of a multi-layered PCB board according to claim 1, wherein: the rubber mat with the holes is a soft rubber mat.

4. A mounting structure of a multi-layered PCB board according to claim 1, wherein: the thickness of the rubber mat with the holes is larger than that of the isolating sheet with the holes.

5. A mounting structure of a multi-layered PCB board according to claim 1, wherein: the upper end periphery of foraminiferous cushion has the widening portion toward outer extension to make the up end of foraminiferous cushion be greater than down the terminal surface, just, the up end of foraminiferous cushion is the horizontal plane.

6. A mounting structure of a multi-layered PCB board according to claim 1, wherein: the stem portion is centrally disposed on the top end of the cap portion.

7. A mounting structure of a multi-layered PCB board according to claim 1, wherein: one side of the top end of each layer of PCB is fixedly connected with a flat cable, and the free end of the flat cable is provided with a pluggable interface.

8. A mounting structure of a multi-layered PCB board according to claim 7, wherein: the flat cables of adjacent PCB boards are inserted through the interfaces of the adjacent PCB boards so as to connect all the PCB boards to form a whole, and one side of the top end of at least one layer of PCB board is fixedly connected with an external connecting wire.