CN2802902Y

CN2802902Y - Obverse and reverse arrangement structure of flexible circuit board

Info

Publication number: CN2802902Y
Application number: CN 200520060689
Authority: CN
Inventors: 张春晓; 曹振辉; 马文耀
Original assignee: SHANGHAI HUASHIDE CIRCUIT TECHNOLOGY Co Ltd
Current assignee: SHANGHAI HUASHIDE CIRCUIT TECHNOLOGY Co Ltd
Priority date: 2005-06-24
Filing date: 2005-06-24
Publication date: 2006-08-02
Anticipated expiration: 2015-06-24

Abstract

The utility model discloses an obverse and reverse arrangement structure of a flexible circuit board. A batch of zigzag flexible circuit boards is arranged on the sheet material of the flexible circuit board. The zigzag flexible circuit boards are divided into a plurality of flexible circuit board units which are distributed on the sheet material of the flexible circuit board in an array mode. Each flexible circuit board unit comprises two flexible circuit boards of which the external shapes are tightly combined, one of the flexible circuit boards is arranged at the positive direction that the obverse surface is upward and the reverse surface is downward; the other flexible circuit board is arranged at reversal direction that the obverse surface is downward and the reverse surface is upward. As the flexible circuit boards are alternately arranged by obverse one and reverse one, the utility model enables the external shapes of the flexible circuit boards to be tightly combined. Thus, the arrangement utilization ratio of the sheet material of the flexible circuit boards is enhanced, so the sheet materials are fully used. Experiment shows that compared with the prior art, the arrangement number of the flexible circuit boards with the same structure arranged on the same flexible circuit board in the arrangement mode of the utility model can be increased by a half.

Description

The positive and negative composing structure of flexible PCB

Affiliated technical field

The utility model relates to a kind of composing structure of flexible PCB, relates in particular to a kind of positive and negative composing structure of flexible PCB.

Background technology

At present, in the electronic product field, flexible PCB (Flexible Printed Circuit is called for short FPC) because of the flexural property of its height and frivolous design feature, is widely used on the electronic product of many pursuit structures miniaturization.

Generally, flexible PCB manufacturer need be produced on a collection of flexible PCB on the one monoblock flexible PCB sheet material when carrying out the batch process of flexible PCB together, afterwards again with the single flexible circuit board one by one stamping-out get off.So how these flexible PCBs arrange, and can influence the utilance and the production efficiency of sheet material, and then influence production cost and enterprise strives power unexpectedly on a monoblock sheet material.If can be under the prerequisite of quality assurance the flexible PCB of arranging of maximal density, then can improve stock utilization, reduce production costs, improve production capacity.

As shown in Figure 3, promptly disclosed a kind of composing structure of existing flexible PCB.Wherein, shown in flexible PCB be multi-layer sheet, be irregularly shaped bending, be mainly used in the interface of flip phone.During composing, for the flexible PCB of arranging of maximal density, the designer is divided into some flexible PCB unit of arranging with array format with a monoblock sheet material.Two flexible PCBs of arranging on each unit, and wherein relative another piece is done level 180 degree rotations in plate plane so that two flexible PCBs toward each other, nested against one another and cross arrangement.

Yet, since the composing structure of above-mentioned existing flexible PCB be with all flexible PCBs face up, reverse side down forward arrange, taking all factors into consideration putting of the shape of flexible PCB, size and pilot pin, the clearance distance of dynamic area, the factor such as offer of steam vent and fabrication hole, the composing structure that should have flexible PCB now has to waste the space of a lot of sheet materials, and can't effectively improve the utilance of sheet material.Experiment shows, is about on 25 * 30 centimetres the flexible PCB sheet material at one, adopts this existing type-setting mode only can arrange 40 aforementioned applications in the flexible PCB of the interface of flip phone, and its composing utilance is about 21.9%.

The utility model content

The purpose of this utility model is the positive and negative composing structure that a kind of flexible PCB is provided at the defective that above-mentioned prior art exists, can improve sheet material the composing utilance so that sheet material be fully utilized.

For achieving the above object, the positive and negative composing structure of flexible PCB provided by the utility model is a collection of indentation flexible PCB of arranging on a flexible PCB sheet material, these flexible PCBs are divided into some flexible PCBs unit, these flexible PCB unit are distributed on the flexible PCB sheet material with array format, it is characterized in that: each flexible PCB unit comprises the flexible PCB that two profiles closely combine, wherein flexible PCB face up, reverse side down forward arrange, another piece flexible PCB face down, reverse side are oppositely arranged up.

As mentioned above, the utility model is by carrying out one positive one anti-alternately arranging to flexible PCB, make the positive and negative opposite circuit of flexible PCB all be positioned at the same one side of flexible PCB sheet material, simultaneously also the profile of flexible PCB is closely combined, thus improve sheet material the composing utilance so that sheet material be fully utilized.Experiment shows, be about in a same size on 25 * 30 centimetres the flexible PCB sheet material, adopt type-setting mode of the present utility model can arrange 60 and have flexible PCB with spline structure with prior art, compare prior art, the composing number increases half, and the composing utilance is also corresponding to be increased to 32.9%.

Description of drawings

Below in conjunction with drawings and Examples the utility model is described in further detail.

Fig. 1 is the plane graph of the utility model flexible PCB composing structure.

Fig. 2 is the plane graph that is shown in the flexible PCB unit of Fig. 1.

Fig. 3 is the plane graph of existing flexible PCB composing structure.

The description of reference numerals of each element is as follows among the figure: 100. flexible PCB sheet materials, 10. flexible PCB unit, 11. flexible PCBs.

Embodiment

By describing technology contents of the present utility model, structural feature in detail, realized purpose and effect, give explanation below in conjunction with execution mode and conjunction with figs. are detailed.

See also Fig. 1, the positive and negative composing structure of the utility model flexible PCB, comprise a collection of indentation flexible PCB 11 that is arranged on the rectangle flexible PCB sheet material 100, these flexible PCBs 11 are divided into some flexible PCBs unit 10, and these flexible PCB unit 10 also are distributed on the flexible PCB sheet material 100 with array format.

See also Fig. 2, each flexible PCB unit 10 comprises two flexible PCBs 11.Wherein flexible PCB 11 face up, reverse side down forward arrange, another piece flexible PCB 11 face down, reverse side are oppositely arranged up.

As mentioned above, the utility model is by carrying out one positive one anti-alternately arranging to flexible PCB 11, make the positive and negative opposite circuit of flexible PCB 11 all be positioned at the same one side of flexible PCB sheet material 100, simultaneously also the profile of flexible PCB 11 is closely combined, thus improve sheet material the composing utilance so that sheet material be fully utilized.Experiment shows, be about in a same size on 25 * 30 centimetres the flexible PCB sheet material 10, adopt type-setting mode of the present utility model can arrange 60 and have flexible PCB 11 with spline structure with prior art, compare prior art, the composing number increases half, and the composing utilance is also corresponding to be increased to 32.9%.

Claims

1. the positive and negative composing structure of a flexible PCB, it is a collection of indentation flexible PCB of on a flexible PCB sheet material, arranging, these flexible PCBs are divided into some flexible PCBs unit, these flexible PCB unit are distributed on the flexible PCB sheet material with array format, it is characterized in that: each flexible PCB unit comprises the flexible PCB that two profiles closely combine, wherein flexible PCB face up, reverse side down forward arrange, another piece flexible PCB face down, reverse side are oppositely arranged up.