CN112954891A

CN112954891A - Conjoined strip-shaped circuit board containing multiple circuit boards and manufacturing method

Info

Publication number: CN112954891A
Application number: CN201911299789.4A
Authority: CN
Inventors: 王定锋; 徐文红; 冉崇友; 徐磊; 宋健
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2021-06-11

Abstract

The invention relates to a strip-shaped circuit board containing a plurality of circuit boards and a manufacturing method thereof, in particular to a strip-shaped circuit board which is designed into a plurality of parallel arrangements, and staggered jointed boards are arranged at intervals from top to bottom, odd-number positions and even-number positions are staggered, the position of each circuit board for welding all elements or the position of a part of the elements to be welded is designed to be wider, all blank positions or part blank positions of the elements without being welded are designed to be narrower, and the narrower part of each circuit board is the wider part of the left and right adjacent boards.

Description

Conjoined strip-shaped circuit board containing multiple circuit boards and manufacturing method

Technical Field

The invention relates to the field of circuit boards, in particular to a connected bar-shaped circuit board containing a plurality of circuit boards and a manufacturing method thereof.

Background

In order to improve the production efficiency during the production of the circuit board in the prior art, a plurality of narrow strip boards are spliced into a whole large board for production, the single circuit board is a rectangular board or a special-shaped batten occupying the largest space in the long direction in the production of the circuit board in the prior art, and the circuit board designed and manufactured has low material utilization rate and high cost.

In order to overcome the defects and the shortcomings, the invention adopts the following method for designing and manufacturing, realizes that the quantity of the circuit boards is increased by more than 25 percent on the same area, and is equivalent to that the strip-shaped circuit boards which are more than 25 percent more than the old technology can be bought with the same amount of money, thereby greatly saving the cost. The lamp strip manufactured by the circuit board is low in cost.

The strip-shaped circuit board is designed into a plurality of strips which are arranged side by side, and staggered jointed boards are arranged at intervals from top to bottom, odd-number circuit boards and even-number circuit boards are arranged in a staggered manner, each circuit board is designed to be wider at the position where all elements are welded or at the position where part of the elements are welded, two sides of each circuit board are designed to be narrowed towards the middle at all blank positions or part of blank positions where no elements are welded, the narrowed position of each circuit board is the widened position of the left adjacent board and the right adjacent board, the conjoined circuit board containing the plurality of circuit boards is manufactured by the design mode, the position where no elements are welded on the circuit boards is fully utilized and reduced, the position where the elements are welded on the two adjacent boards is widened, and the cost of the light bar manufactured by the circuit boards is low.

Disclosure of Invention

The invention provides a method for manufacturing a conjoined strip-shaped circuit board containing a plurality of circuit boards, which comprises the following steps of designing the strip-shaped circuit board into a plurality of parallel arrangements, arranging a staggered splicing board at intervals from top to bottom, arranging odd-number circuit boards and even-number circuit boards in a staggered way, designing each circuit board to be wider at the positions for welding all elements or at the positions for welding partial elements, designing all blank positions or partial blank positions for not designing the welding elements to be narrower, designing the narrower position of each board to be the wider position of the left and right adjacent boards, designing and manufacturing the conjoined strip-shaped circuit board containing the plurality of circuit boards by the method, fully utilizing and narrowing the positions for not designing the welding elements or the positions for partially not designing the welding elements of the circuit boards, and leading the positions to be used at the positions for welding all the elements or at the positions for welding partial elements of the two adjacent boards, and the strips are directly connected without intervals or are closely attached without intervals, the circuit board manufactured by the design has high utilization rate, the number of the circuit boards is increased on the same area, and the cost is saved.

According to a preferred embodiment of the present invention, the integrated strip-shaped circuit board including a plurality of circuit boards is characterized in that the circuit board is a flexible circuit board or a rigid circuit board.

According to a preferred embodiment of the present invention, the integrated strip-shaped circuit board including a plurality of circuit boards is characterized in that the circuit board is detached into a single piece for use after components are soldered thereon, or is detached into an integrated circuit board including a plurality of comb-shaped structures for use.

According to a preferred embodiment of the present invention, the integrated strip-shaped circuit board including a plurality of circuit boards is characterized in that when the length of the circuit board is less than or equal to 1500mm, two ends of the circuit board are in a staggered tooth-shaped structure.

According to a preferred embodiment of the present invention, the integrated strip-shaped circuit board comprising a plurality of circuit boards is characterized in that when the circuit board is a rigid circuit board, the rigid circuit board is a circuit board with a "comb" shaped structure, or a connecting piece circuit board with a double "comb" shaped structure formed by reassembling two circuit boards with "comb" shaped structures, and each circuit board is close to each other at a zero interval, and each connecting body connecting each circuit board together in the "comb" shaped structure is a connecting body comprising a functional circuit, or a connecting body not comprising a functional circuit.

The details of one or more embodiments of the invention are set forth in the accompanying drawings and the description below.

Drawings

The features, objects, and advantages of the present invention will become more apparent from the description set forth below when taken in conjunction with the drawings, a brief description of which follows.

FIG. 1 is a schematic plan view of a conventional bar design layout with a imposition number of 30 PCS.

FIG. 2 is a schematic plan view of a layout design with a layout number of 40 PCS.

Fig. 3 is a schematic plan view of an unformed web of film.

Fig. 4 is a schematic plan view of a formed web sheet with the left and right technical edges punched out.

Fig. 5 is a schematic plan view of a molded web flexible sheet having pre-severed connection points.

Fig. 6 is a schematic plan view of a molded web flexible sheet having pre-severed connection points.

Fig. 7 is a schematic plan view of the connected LED circuit board with a comb-shaped structure.

Fig. 8 is a schematic plan view of the connected LED circuit board with a comb-shaped structure.

Fig. 9 is a schematic plan view of the LED rigid circuit boards clamped to each other as a single unitary body.

Detailed Description

The present invention will be described in detail below by taking preferred embodiments as examples.

It will be understood by those skilled in the art that the following descriptions are provided for purposes of illustration and description of certain preferred embodiments only and are not intended to limit the scope of the present invention.

Example one

1. Design and production of data

The width of a used raw material is 250MM, the width of the widest part of a single product strip is 8.0MM, the conventional and old design scheme is a straight strip design, the number of the pieces is 30 (shown in figure 1), the invention adopts a new special-shaped staggered design scheme, the widest part of each strip is 8MM, the narrowest part of each strip is 4MM, and the number of the pieces is 40 (shown in figure 2).

2. Production of single-sided flexible board

According to the production method of the design data of the single-sided flexible board special-shaped staggered design and the splicing number of 40PCS, a flexible copper-clad board with the width of 250mm, a printed circuit, etching, solder printing and OSP (organic solderability preservative) are used for processing welding spots to manufacture unformed connecting piece flexible boards, and each connecting piece flexible board comprises 40 LED connecting light bar circuit boards (shown in figure 3) for standby.

3. Shaping of

3.1, punching edges of two end plates of the soft board to manufacture the two end plates of the soft board, wherein odd numbers and even numbers of the circuit boards are staggered to form a 'tooth-shaped' structure, and the 'tooth-shaped' structure is formed by cutting with a wave-shaped knife (shown in figure 4), namely the integrated LED light bar circuit board containing a plurality of circuit boards is manufactured.

3.2, punching the whole soft board into strips by using a cutting die, wherein most positions of the strips are separated, and a plurality of connecting points which are mutually connected are reserved to manufacture the integrated LED light bar circuit board of a plurality of circuit boards (shown in figures 5 and 6).

3.3, punching the whole board by using a die to form two separated connected LED circuit boards with a comb-shaped structure, and manufacturing the LED lamp bar circuit board containing a plurality of circuit boards. (shown in FIGS. 7 and 8).

Example two

1. Design and production of data

The width of a used raw material is 250MM, the width of the widest part of a single product strip is 8.0MM, the conventional traditional old design scheme is a straight strip design, the number of the pieces is 30 (shown in figure 1), the special-shaped staggered design is adopted in the invention, the widest part of each strip is 8MM, the narrowest part of each strip is 4MM, and the number of the pieces is 40 (shown in figure 2).

2. Production of rigid circuit board

According to the production method of the design data of the rigid circuit board with the special-shaped staggered design and the makeup quantity of 40PCS, the rigid copper-clad plate with the width of 250mm, the circuit is printed by silk, etched, solder-welded and OSP processed welding spots are used for manufacturing an unformed connected rigid circuit board, and each connected rigid circuit board light bar (shown in figure 3) containing 40 LEDs is reserved.

3. Shaping of

The production method is that the die of the circuit board with a comb-shaped structure is manufactured, the die of the circuit board is designed into an upper die and a lower die, the punching knives of the upper die and the lower die are all in a comb-shaped structure which is connected into a whole, the edge of the comb-shaped punching knife of the upper die is a continuous curved knife edge which is connected into a line, the edge of the comb-shaped punching knife of the lower die is also a continuous curved knife edge which is connected into a line, the upper knife and the lower knife are in staggered alignment, so that the knife edges of the upper knife and the lower knife form a scissor-type shearing relationship, the die is used for punching the connecting piece rigid circuit board, and the connecting piece rigid circuit board is punched into two connecting LED rigid circuit boards with the comb-shaped structure, then, the two connected LED rigid circuit boards with the comb-shaped structures are assembled back into a whole, and are mutually clamped into the whole connected LED rigid circuit board, and the two comb-shaped boards are actually completely disconnected (shown in fig. 9).

Description of the drawings: the schematic diagrams of the single-sided soft board and the rigid soft board are shared, and the straight lines or wavy lines among the bars in the schematic diagrams of fig. 1, 2 and 4 are the dividing lines when the circuit board is cut into single bars for use.

The invention has been described in detail with reference to the accompanying drawings, which illustrate an integrated strip-type circuit board having a plurality of circuit boards and a method for manufacturing the same. It will be understood by those skilled in the art, however, that the foregoing is merely illustrative and descriptive of some specific embodiments and is not to be construed as limiting the scope of the invention, especially the scope of the claims.

Claims

1. A method for manufacturing a strip-shaped circuit board containing a plurality of circuit boards in a connected mode includes designing the strip-shaped circuit board into a plurality of strips which are arranged in parallel, arranging a staggered splicing board at intervals from top to bottom, arranging odd-number circuit boards and even-number circuit boards in a staggered mode, designing each circuit board to be wider at positions for welding all elements or positions for welding partial elements, designing each circuit board to be narrower at all blank positions or partial blank positions for not designing the welded elements, designing each circuit board to be narrower at the narrow position of each circuit board, namely the wide position of the left and right adjacent circuit boards, designing and manufacturing the connected strip-shaped circuit board containing the plurality of circuit boards by the method, fully utilizing the positions of all the circuit boards which are not designed with the welded elements or the positions for welding partial elements to be narrower at the positions for welding all the elements or the positions for welding partial elements of the two adjacent circuit boards, and directly connecting the strips without intervals, or the circuit boards are close to each other without intervals, the utilization rate of the circuit boards manufactured by the design is high, the number of the circuit boards is increased on the same area, and the cost is saved.

2. The integrated strip circuit board with a plurality of circuit boards according to claim 1, wherein the circuit board is a flexible circuit board or a rigid circuit board.

3. The integrated strip circuit board comprising a plurality of circuit boards according to claim 1, wherein the circuit board is split into a single piece for use after components are soldered thereon, or split into an integrated circuit board comprising a plurality of comb-like structures for use.

4. The integrated strip circuit board with the plurality of circuit boards according to claim 1, wherein when the length of the circuit board is less than or equal to 1500mm, the two ends of the circuit board are in a staggered tooth-shaped structure.

5. The integrated strip circuit board containing a plurality of circuit boards according to claim 1, wherein when the circuit board is a rigid circuit board, the rigid circuit board is a circuit board with a "comb" shaped structure, or a connecting piece circuit board with a double "comb" shaped structure formed by reassembling two circuit boards with "comb" shaped structures, and each circuit board is close to each other with zero space, and the connecting body connecting each circuit board together in the "comb" shaped structure is a connecting body containing a functional circuit, or a connecting body without a functional circuit.