CN100411498C - 一种fpc与pcb的组件 - Google Patents

一种fpc与pcb的组件 Download PDF

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CN100411498C
CN100411498C CNB2005101018554A CN200510101855A CN100411498C CN 100411498 C CN100411498 C CN 100411498C CN B2005101018554 A CNB2005101018554 A CN B2005101018554A CN 200510101855 A CN200510101855 A CN 200510101855A CN 100411498 C CN100411498 C CN 100411498C
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pcb
fpc
golden finger
baseplate
fpc substrate
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CN1802067A (zh
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邹群
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Heze Yangxin Photoelectric Technology Co ltd
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Huizhou TCL Mobile Communication Co Ltd
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Abstract

本发明公开一种FPC与PCB的组件,包括FPC基板,设于FPC基板端侧的金手指、PCB和位于PCB端侧的金手指,FPC基板上的金手指从FPC基板的外侧向内侧延伸,FPC基板上的金手指的前端相对于PCB上金手指前端后错并通过焊锡连接。采用FPC基板上金手指的前端与PCB上金手指前端后错的结构,由于金属对焊锡的吸附力很强,这样FPC基板上金手指与PCB上金手指之间多余的锡会沿着PCB上金手指前端超出FPC基板上金手指的前端的部分向外流动,可以实现FPC基板与PCB的有效桥接,使电气连接更加可靠。

Description

一种FPC与PCB的组件
技术领域
本发明涉及一种FPC与PCB的组件。
背景技术
FPC(柔性线路板)金手指数量大量增加,金手指的宽度与间隙在有限的空间下相应的减小,从而FPC金手指极易出现内部连锡,FPC与PCB(印制电路板)也难以有效桥接,造成焊接不良大量增加,焊接效率低下,严重影响了产品的焊接质量。
发明内容
本发明的目的就是为了解决以上问题,提供一种FPC与PCB的组件。
为实现上述目的,本发明提出一种FPC与PCB的组件,包括FPC基板,设于FPC基板端侧的金手指、PCB和位于PCB端侧的金手指,FPC基板上的金手指从FPC基板的外侧向内侧延伸,FPC基板上的金手指的前端相对于PCB上金手指前端后错并通过焊锡连接。
所述PCB上金手指前端超出FPC基板上金手指的前端的部分的距离a的范围为:0.5mm≤a≤0.8mm。
现有FPC基板上金手指前端与PCB上金手指前端对齐的结构,在焊接时,多余的焊锡可能会沿着PCB上金手指向内流动,由于FPC基板与PCB之间的间隙很小,多余的锡就会形成锡珠后被压扁,在横向上被压扁的锡相连后,会在FPC与PCB内部造成连锡;采用FPC基板上金手指的前端与PCB上金手指前端后错的结构,由于金属对焊锡的吸附力很强,这样FPC基板上金手指与PCB上金手指之间多余的锡会沿着PCB上金手指前端超出FPC基板上金手指的前端的部分向外流动,可以实现FPC基板与PCB的有效桥接,使电气连接更加可靠;在热压中可以使得多余的锡在PCB上金手指前端超出FPC基板上金手指的前端的部分形成锡珠,起到存放多余的锡的作用;在手工焊接时,FPC基板与PCB之间多余的锡被压出后置于PCB上金手指前端超出FPC基板上金手指的前端的部分,然后可以被烙铁拖走。采用本发明的技术方案,FPC基板上的金手指与PCB上的金手指之间能够有效桥接,电气连接可靠,提高FPC基板与PCB焊接后产品的可靠性和使用寿命;多余的锡向外流动,避免内部连锡,提高产品的焊接质量和产品的可靠性。
附图说明
下面通过具体的实施例并结合附图对本发明作进一步详细的描述。
图1是本发明的结构示意图。
具体实施方式
一种FPC与PCB的组件,如图1所示,包括FPC基板1,设于FPC基板端侧的金手指2、PCB3和位于PCB端侧的金手指4,FPC基板上的金手指2从FPC基板1的外侧向内侧延伸,FPC基板上的金手指2的前端相对于PCB上金手指4前端后错并通过焊锡连接。
FPC基板上的金手指是将FPC基板端侧的绝缘胶刮去后形成的。
现有FPC基板上金手指前端与PCB上金手指前端对齐的结构,在焊接时,多余的焊锡可能会沿着PCB上金手指向内流动,由于FPC基板与PCB之间的间隙很小,多余的锡就会形成锡珠后被压扁,在横向上被压扁的锡相连后,会在FPC基板与PCB内部造成连锡;采用FPC基板上金手指的前端与PCB上金手指前端后错的结构,由于金属对焊锡的吸附力很强,这样FPC基板上金手指与PCB上金手指之间多余的锡会沿着PCB上金手指前端超出FPC基板上金手指的前端的部分向外流动,可以实现FPC基板与PCB的有效桥接,使电气连接更加可靠;在热压中可以使得多余的锡在PCB上金手指前端超出FPC基板上金手指的前端的部分形成锡珠,起到存放多余的锡的作用;在手工焊接时,FPC基板与PCB之间多余的锡被压出后置于PCB上金手指前端超出FPC基板上金手指的前端的部分,然后可以被烙铁拖走。
由于FPC基板上金手指的前端端侧上设有便于吸附焊锡的弧线缺口,因此FPC基板上的金手指的前端与PCB上金手指前端的距离不能太大;同时,PCB上金手指前端超出FPC基板上金手指的前端的部分越少,对多余的锡的吸附作用也会相应的减小,因此,PCB上金手指前端超出FPC基板上金手指的前端的部分的距离a的范围为:0.5mm≤a≤0.8mm。

Claims (2)

1. 一种FPC与PCB的组件,其特征在于:包括FPC基板(1),设于FPC基板端侧的金手指(2)、PCB(3)和位于PCB端侧的金手指(4),FPC基板上的金手指(2)从FPC基板(1)的外侧向内侧延伸,FPC基板上的金手指(2)的前端相对于PCB上金手指(4)前端后错,焊锡连接FPC基板上的金手指(2)和PCB上金手指(4),并且所述焊锡沿着PCB上金手指(4)前端超出FPC基板上金手指(2)前端的部分顺延。
2. 根据权利要求1所述的FPC与PCB的组件,其特征在于:所述PCB上金手指前端超出FPC基板上金手指的前端的部分的距离a的范围为:0.5mm≤a≤0.8mm。
CNB2005101018554A 2005-11-25 2005-11-25 一种fpc与pcb的组件 Active CN100411498C (zh)

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Publication number Priority date Publication date Assignee Title
CN101511147B (zh) * 2008-04-23 2010-06-23 深圳市精诚达电路有限公司 一种四层软硬结合板的结构
CN104039080A (zh) * 2014-05-26 2014-09-10 京东方科技集团股份有限公司 一种电路板和显示装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5059756A (en) * 1988-11-29 1991-10-22 Amp Incorporated Self regulating temperature heater with thermally conductive extensions
US5155301A (en) * 1989-08-18 1992-10-13 Semiconductor Energy Laboratory Co., Ltd. Electrical connection and method for making the same
US6226862B1 (en) * 1998-04-30 2001-05-08 Sheldahl, Inc. Method for manufacturing printed circuit board assembly
US20010001464A1 (en) * 1999-10-08 2001-05-24 Molex Incorporated Apparatus and method for bonding conductors using induction heating
CN1347275A (zh) * 2000-10-10 2002-05-01 明棋电通股份有限公司 印刷电路板上金手指与可挠性印刷电路引脚间的焊接方法
US20040026116A1 (en) * 2000-10-13 2004-02-12 Helmut Kanbach Method for connecting flat film cables
US20050176271A1 (en) * 2003-08-21 2005-08-11 Li Xing Wu Electrical connection and component assembly for constitution of a hard disk drive

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5059756A (en) * 1988-11-29 1991-10-22 Amp Incorporated Self regulating temperature heater with thermally conductive extensions
US5155301A (en) * 1989-08-18 1992-10-13 Semiconductor Energy Laboratory Co., Ltd. Electrical connection and method for making the same
US6226862B1 (en) * 1998-04-30 2001-05-08 Sheldahl, Inc. Method for manufacturing printed circuit board assembly
US20010001464A1 (en) * 1999-10-08 2001-05-24 Molex Incorporated Apparatus and method for bonding conductors using induction heating
CN1347275A (zh) * 2000-10-10 2002-05-01 明棋电通股份有限公司 印刷电路板上金手指与可挠性印刷电路引脚间的焊接方法
US20040026116A1 (en) * 2000-10-13 2004-02-12 Helmut Kanbach Method for connecting flat film cables
US20050176271A1 (en) * 2003-08-21 2005-08-11 Li Xing Wu Electrical connection and component assembly for constitution of a hard disk drive

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