CN213907040U

CN213907040U - PCB jointed board

Info

Publication number: CN213907040U
Application number: CN202022831276.8U
Authority: CN
Inventors: 高祖远; 魏宏亮; 王斌; 岑洁妮
Original assignee: Ningbo Fuerda Smartech Co Ltd
Current assignee: Ningbo Fuerda Smartech Co Ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-08-06
Anticipated expiration: 2030-11-30

Abstract

The utility model discloses a PCB jointed board, which is formed by splicing a plurality of PCB sub-boards, wherein the PCB sub-boards and the peripheral sub-parts thereof are connected at the adjacent edges of the PCB sub-boards and the peripheral sub-parts through connecting points; and a processing line for dividing and processing is arranged between the PCB daughter board and a connection point connected with the PCB daughter board, and the processing line is recessed by a distance L towards the inside of the PCB daughter board relative to the edge of the substrate of the connection point of the PCB daughter board. The utility model discloses special structure setting makes the machining tolerance place processing line department of cutting apart processing bring remaining height promptly and protruding in the part of processing line can not surpass or too much surpass the base plate edge of PCB daughter board after processing to effectively solve the PCB daughter board and take place to interfere the problem of risk rather than peripheral structure.

Description

PCB jointed board

Technical Field

The utility model relates to a PCB field especially relates to a PCB makeup.

Background

Pcb (printed Circuit board), which is called printed Circuit board in chinese, is an important electronic component, is a support for electronic components, and is a carrier for electrical connection of electronic components.

Along with the development of electronic product industrialization, the mass production of the PCB industry is the inevitable demand of mature products, and the PCB jointed board can bring remarkable processing convenience and material saving advantages for batch PCB processing.

The PCB jointed board is formed by splicing a plurality of PCB sub-boards, and adjacent edges of adjacent PCB sub-boards are connected through connecting points; after the components are assembled, the PCB sub-boards are separated from the PCB jointed board along the processing line by the separation tool.

As shown in fig. 1-2, in the prior art, the processing line is flush with the substrate edge of the PCB sub-board; by adopting the structure, because the cutting processing has processing tolerance, the residual height, namely the part protruding from the processing line after the processing, can appear on the edge of the substrate of the PCB daughter board which is cut separately; the presence of the residual height risks interference with other structural members around the PCB daughterboard when mounted to its mounting location. Once interfering with the structure, the structure can only be modified, or the connection point moved elsewhere, or the precision of the segmentation process increased. The modification of the structural part requires the repair of the die, which increases unnecessary cost; the connection points are unevenly distributed due to the movement of the connection points, and the deformation risk of the PCB jointed board exists during welding; increasing the accuracy of routing processing increases cost.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of existence among the prior art, the utility model provides a PCB makeup, its special structure setting makes the machining tolerance place processing line department of cutting apart processing bring remaining height promptly and process the protruding base plate edge that can not surpass or too much surpass the PCB daughter board in the part of processing line after to effectively solve the PCB daughter board and take place the problem of interfering the risk rather than peripheral structure.

In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:

a PCB jointed board is formed by splicing a plurality of PCB sub-boards, wherein the PCB sub-boards and peripheral sub-parts thereof are connected at adjacent edges of the PCB sub-boards and the peripheral sub-parts through connecting points; and a processing line for dividing and processing is arranged between the PCB daughter board and a connection point connected with the PCB daughter board, and the processing line is recessed by a distance L towards the inside of the PCB daughter board relative to the edge of the substrate of the connection point of the PCB daughter board.

The processing line is recessed to the inner part of the PCB daughter board by a distance L, so that when the PCB daughter board is subjected to cutting processing, the processing line where the processing tolerance of the cutting processing is positioned brings residual height, namely the part protruding from the processing line after processing does not exceed or excessively exceeds the substrate edge of the PCB daughter board; by adopting the structure, when the processed PCB daughter board is installed to the installation position, the risk of interference with other peripheral structural components is greatly reduced.

"several" is understood to mean 1 or more.

The perimeter sub-assembly may be an adjacent PCB sub-board or an adjacent process edge.

Further, L is equal to or greater than a machining tolerance of the dividing machining.

By adopting the structure, the residual height brought by the processing tolerance of the cutting processing at the processing line is further ensured, namely, the part protruding from the processing line after the processing does not exceed the edge of the substrate of the PCB daughter board, and the interference between the PCB daughter board and other peripheral structural components is avoided.

Further, L is equal to the machining tolerance of the dividing machining.

By adopting the structure, under the condition that the residual height brought by the processing tolerance of the cutting processing at the processing line, namely the part which is protruded from the processing line after the processing can not exceed the edge of the substrate of the PCB daughter board, the usable area of the PCB daughter board for wiring and component mounting is increased.

Furthermore, transition sections connected with the edges of the base plates of the PCB sub-boards are formed on two sides of the connecting points which are not connected with the PCB sub-boards, and the transition sections are recessed towards the inner parts of the PCB sub-boards relative to the edges of the base plates of the PCB sub-boards; and connecting lines between points which are recessed to the deepest part inside the PCB daughter board on the transition sections at two sides of the connecting point form the processing lines.

By adopting the structure, the processing line is convenient to determine, and the actual processing of the PCB jointed board is convenient.

Further, the transition section is arc-shaped.

By adopting the structure, the cutting tool can be aligned to the processing line when the PCB is cut and processed conveniently, so that the PCB can be cut and processed more conveniently.

Furthermore, the radiuses of the transition sections on the two sides of the connecting point are equal, and a connecting line of the circle centers is parallel to the edge of the substrate of the PCB daughter board.

By adopting the structure, the processing line is parallel to the edge of the substrate of the PCB daughter board and is tangent to the circular arcs formed by the two sides of the connecting point and the transition section.

Specifically, the transition section and the side surface of the connecting point provided with the transition section are integrally arc-shaped.

Furthermore, the technical edge is arranged at the edge of the jointed PCB board, and the technical edge is connected with the PCB daughter board through the connecting point.

When the components are mounted on the PCB jointed board, the components at the edge of the PCB jointed board are not easy to mount, so that the structure is adopted, the arrangement of the process edge can effectively avoid the above situation, and the mounting of the components is convenient.

In the case where a process edge is provided, the PCB sub-board may have only one piece.

Furthermore, the two opposite side edges of the PCB jointed board or the four side edges of the PCB jointed board are provided with the technical edges.

And determining the arrangement condition of the process edge according to the position distribution of the components on the PCB jointed board.

Further, in some embodiments, several of the PCB daughter boards have the same shape, size; in some embodiments, the PCB daughter boards are of different shapes and sizes.

Furthermore, a plurality of gaps which are not communicated are arranged between adjacent edges of the adjacent PCB daughter boards, and the connecting points are formed between the adjacent gaps.

Further, the segmentation process is routing segmentation.

Specifically, after the components are completely assembled on the PCB jointed board, the connecting points are milled off along the processing line by using a milling cutter, and the PCB daughter board is separately cut off from the PCB jointed board.

Further, L takes a value of 0.2 mm.

Because the tolerance of the routing division is generally +/-0.2 mm, the structure can ensure that the residual height brought by the processing line where the processing tolerance of the division processing is positioned, namely the part protruding from the processing line after the processing does not exceed the substrate edge of the PCB daughter board.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the utility model discloses a processing line in the PCB makeup is for the inside concave yield of PCB daughter board at the base plate edge of PCB daughter board tie point for the processing tolerance place processing line department of cutting apart processing brings remaining height and protruding in the part of processing line can not surpass or too much surpass the base plate edge of PCB daughter board after processing promptly, thereby effectively solves the problem that PCB daughter board takes place to interfere the risk rather than peripheral structure.

(2) The utility model discloses a processing tolerance of processing is cut apart to the inside concave yield degree of depth more than or equal to of PCB daughter board to the base plate edge of PCB daughter board tie point to the processing line in the PCB makeup, further ensures that processing tolerance place processing line department brings remaining height and protruding in the part of processing line can not surpass the base plate edge of PCB daughter board after processing promptly.

(3) The utility model discloses a changeover portion's setting makes things convenient for the affirmation of processing line in the PCB makeup, and is convenient for cut apart the instrument of processing man-hour and aims at the processing line for it is more convenient to cut apart processing to PCB board.

(4) The utility model discloses a structural design of PCB makeup is reasonable.

Drawings

FIG. 1 is a schematic structural diagram of a PCB panel in the prior art;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is a schematic structural view of a PCB jointed board of the present invention;

FIG. 4 is an enlarged view at B in FIG. 3;

FIG. 5 is an enlarged view at C of FIG. 3;

reference numerals: 1, a PCB daughter board; 2, connecting points; 3, processing a line; 4, transition section; 5, the edge of the substrate; 6, processing; 7 gaps.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 3-5, a PCB jointed board is formed by splicing a plurality of PCB daughter boards 1, wherein the PCB daughter boards 1 are connected with peripheral daughter parts thereof at the adjacent edges of the two by connecting points 2; a processing line 3 for cutting processing is arranged between the PCB daughter board 1 and a connection point 2 connected with the PCB daughter board, and the processing line 3 is recessed to the inside of the PCB daughter board 1 by a distance L relative to a substrate edge 5 of the connection point 2 connected with the PCB daughter board 1.

Because the processing line 3 is recessed to the inner part of the PCB daughter board 1 by the distance L, when the cutting processing is carried out, the processing tolerance of the cutting processing brings residual height at the processing line 3, namely, the part protruding from the processing line 3 after the processing does not exceed or excessively exceeds the substrate edge 5 of the PCB daughter board 1; by adopting the structure, when the processed PCB daughter board 1 is installed to the installation position, the risk of interference with other peripheral structural components is greatly reduced.

"several" is understood to mean 1 or more.

The perimeter sub-element may be an adjacent PCB sub-board 1 or an adjacent technical edge 6.

Preferably, L is equal to or greater than a machining tolerance of the dividing process.

By adopting the structure, the residual height brought by the processing tolerance of the cutting processing at the processing line 3, namely the part protruding from the processing line 3 after the processing can not exceed the substrate edge 5 of the PCB daughter board 1, and the interference between the PCB daughter board 1 and other peripheral structural components can be avoided.

More preferably, L is equal to the machining tolerance of the dividing machining.

By adopting the structure, under the condition that the residual height brought by the processing tolerance of the cutting processing at the processing line 3, namely the part which is protruded out of the processing line 3 after the processing can not exceed the substrate edge 5 of the PCB daughter board 1, the available area of the PCB daughter board 1 for wiring and component mounting is increased.

Preferably, transition sections 4 connected with the substrate edges 5 of the PCB daughter board 1 are formed at two sides of the connection point 2 not connected with the PCB daughter board 1, and the transition sections 4 are recessed towards the inside of the PCB daughter board 1 relative to the substrate edges 5 of the PCB daughter board 1; and connecting lines between points which are recessed deepest towards the inside of the PCB daughter board 1 on the transition sections 4 at two sides of the connecting point 2 form the processing line 3.

By adopting the structure, the processing line 3 is convenient to determine and is convenient for the actual processing of the PCB jointed board.

Preferably, the transition section 4 is arc-shaped.

By adopting the structure, the cutting tool is aligned to the processing line 3 when the cutting processing is convenient, so that the cutting processing of the PCB is more convenient.

Preferably, the radii of the transition sections 4 at the two sides of the connection point 2 are equal, and a connection line of the circle centers is parallel to the substrate edge 5 of the PCB sub-board 1.

By adopting the structure, the processing line 3 is parallel to the substrate edge 5 of the PCB daughter board 1 and is tangent to the arc-shaped formed by the two sides of the connecting point 2 and the transition section 4.

Specifically, the transition section 4 and the side surface of the connection point 2 where the transition section 4 is arranged are integrally arc-shaped.

Preferably, the technical edge 6 is arranged at the edge of the jointed PCB board, and the technical edge 6 is connected with the PCB daughter board 1 through the connecting point 2.

When the components are mounted on the PCB jointed board, the components at the edge of the PCB jointed board are not easy to mount, so that the structure is adopted, and the arrangement of the technical edge 6 can effectively avoid the above situation, thereby facilitating the mounting of the components.

In case of providing the technical edge 6, the PCB sub-board 1 may have only one piece.

Preferably, the two opposite side edges of the PCB jointed board or the four side edges of the PCB jointed board are provided with the technical edges 6.

The arrangement condition of the technical edge 6 is determined according to the position distribution of the components on the PCB jointed board.

Preferably, in some embodiments, the plurality of PCB daughter boards 1 have the same shape and size; in some embodiments, the PCB daughter boards 1 have different shapes and sizes.

Preferably, a plurality of gaps 7 which are not communicated are arranged between adjacent edges of the adjacent PCB daughter boards 1, and the connection points 2 are formed between the adjacent gaps 7.

Preferably, the segmentation process is routing segmentation.

Specifically, after the components are completely assembled on the PCB jointed board, the connecting points 2 are milled off along the processing line 3 by using a milling cutter, and the PCB daughter board 1 is independently cut off from the PCB jointed board.

Preferably, L is 0.2 mm.

Because the tolerance of the routing division is generally +/-0.2 mm, the structure can ensure that the residual height brought by the processing tolerance of the division processing at the processing line 3, namely the part protruding from the processing line 3 after the processing does not exceed the substrate edge 5 of the PCB daughter board 1.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A PCB jointed board is formed by splicing a plurality of PCB sub-boards (1), wherein the PCB sub-boards (1) and peripheral sub-parts thereof are connected at the adjacent edges of the PCB sub-boards and the peripheral sub-parts through connecting points (2); the method is characterized in that: set up between PCB daughter board (1) and the tie point (2) of being connected with it and be used for cutting apart the processing line (3) of processing, processing line (3) for base plate edge (5) of PCB daughter board (1) tie point (2) to PCB daughter board (1) inside recess distance L.

2. The PCB panel of claim 1, wherein: l is equal to or greater than the machining tolerance of the dividing machining.

3. The PCB panel of claim 1, wherein: the two sides of the connection point (2) which are not connected with the PCB daughter board (1) form a transition section (4) which is connected with the substrate edge (5) of the PCB daughter board (1), and the transition section (4) is recessed towards the inside of the PCB daughter board (1) relative to the substrate edge (5) of the PCB daughter board (1); and connecting lines between points which are recessed deepest towards the inside of the PCB daughter board (1) on the transition sections (4) at two sides of the connecting point (2) form the processing line (3).

4. The PCB panel of claim 3, wherein: the transition section (4) is arc-shaped.

5. The PCB panel of claim 4, wherein: the radii of the transition sections (4) on the two sides of the connection point (2) are equal, and a connection line of the circle centers is parallel to the substrate edge (5) of the PCB daughter board (1).

6. The PCB panel of claim 1, wherein: l takes 0.2 mm.

7. The PCB panel of claim 1, wherein: the technical edge (6) is arranged at the edge of the jointed PCB board, and the technical edge (6) is connected with the PCB daughter board (1) through the connecting point (2).

8. The PCB panel of claim 7, wherein: the two opposite side edges of the PCB jointed board or the four side edges of the PCB jointed board are provided with the technical edges (6).

9. The PCB panel of claim 1, wherein: the PCB sub-boards (1) are of the same shape and size.

10. The PCB panel of claim 1, wherein: a plurality of gaps (7) which are not communicated are arranged between adjacent edges of the adjacent PCB daughter boards (1), and the connecting points (2) are formed between the adjacent gaps (7).