Structure for fixing flexible wiring board

A flexible wiring substrate and structure technology, applied in the structural connection of printed circuit, laminated printed circuit board, circuit bendable/stretchable parts, etc. and other problems to achieve the effect of preventing pull out

Inactive Publication Date: 2010-08-11
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Since the fixing structure of the conventional flexible wiring board is configured as above, the end face of the connector is short in the FPC insertion direction, and since the connector is further provided with claws for locking the FPC, there is a problem that the range of the end face that can be positioned Small, difficult to locate accurately
In addition, since the guide part is provided to cover the exposed part of the conductor of the FPC, there is a problem that when the FPC is inserted into the connector, the guide part comes into contact with the connector before the terminal part of the conductor, and operability decreases.
There is also a problem that when a force is applied to the FPC in the direction of pulling out from the connector, since the FPC is easily deformed, the FPC cannot be prevented from falling off.

Method used

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  • Structure for fixing flexible wiring board
  • Structure for fixing flexible wiring board
  • Structure for fixing flexible wiring board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0021] figure 1 It is a front view showing the structure of the FPC fixing structure according to Embodiment 1 of the present invention, figure 1 (a) shows the state before the FPC is fixed, figure 1 (b) shows the state of the FPC after fixation.

[0022] FPC (flexible printed circuit board) 1 is composed of conductor 11 , insulating member 12 , and reinforcing plate (reinforcing member) 13 , and is inserted into connector 2 arranged on board (fixed board) 3 to be electrically connected to board 3 . Conductor 11, which is a wiring pattern, is formed in flexible insulating member 12, but insulating member 12 is removed at one end of FPC 1, and conductor 11 is exposed to the outside to form connection terminal portion 11a for connector 2 connection. In addition, the insulating member 12 is formed with a pair of rectangular clamping members 14 facing toward the figure 1 The illustrated FPC 1 protrudes in a direction approximately perpendicular to the direction in which the con...

Embodiment approach 2

[0032] image 3 It is a front view showing the structure of the fixing structure of FPC concerning Embodiment 2 of this invention.

[0033] The fixed structure of the FPC is provided with a stepped portion, which is in the figure 1 In the FPC fixing structure according to Embodiment 1 shown, the base of the clamp member is wider than the front end. Hereinafter, the same reference numerals as those used in the first embodiment are attached to the same components as those of the fixing structure of the FPC according to the first embodiment, and descriptions thereof are omitted or simplified.

[0034] FPC1 is comprised from the conductor 11, the insulating member 12, and the reinforcement board 13. The insulating member 12 and the reinforcing plate 13 have a pair of clamping components 15, and the pair of clamping components 15 protrude in a direction approximately perpendicular to the direction of arrow A in which the FPC1 is inserted into the connector 2, and further formed o...

Embodiment approach 3

[0040] Figure 5 It is a figure which shows the structure of the FPC concerning Embodiment 3 of this invention, Figure 5 (a) is a front view showing the structure of the back of the FPC, Figure 5 (b) is its side view.

[0041] In the fixed structure of this FPC, the following structure is adopted: namely, figure 1 In the FPC fixing structure according to Embodiment 1 shown, the clamping member protruding from the insulating member and the reinforcing member in a direction approximately perpendicular to the insertion direction of the FPC is replaced by an insertion from the end of the reinforcing plate into the FPC. Clamping part provided with protruding direction. Hereinafter, the same reference numerals as those used in the first embodiment are attached to the same components as those of the fixing structure of the FPC according to the first embodiment, and descriptions thereof are omitted or simplified.

[0042] An insulating reinforcing plate 13 is bonded to the vicin...

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PUM

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Abstract

A flexible wiring board (1) is provided with an insulating member (12) whereupon a conductor (11) is formed; a reinforcing plate (13) for reinforcing the insulating member (12) in the vicinity of a connecting terminal section (11a) of the flexible wiring board (1); and a locking member (14) for locking the flexible wiring board to a board (3) having a connector (2). The board (3) has an opening section (31) for having the locking member (14) fit in, in a state where the connecting terminal section (11a) is connected and fixed to the connector (2).

Description

technical field [0001] The present invention relates to a fixing structure of a flexible printed circuit board (FPC) for electrically connecting electronic devices or circuit boards. Background technique [0002] Conventionally, in the connection of a flexible printed circuit (FPC, hereinafter referred to as FPC), when the FPC is inserted into a connector provided on an electronic device or a circuit board for fixing, the FPC may be fixed in a bent state, or may be fixed in a bent state. If the state of being not fully inserted into the connector is fixed, it will cause a problem of product failure in the constituted device. As a countermeasure against this, for example, in Patent Document 1, an FPC is provided with a square frame-shaped guide portion made of a flexible insulating member, which is integrally formed to surround the periphery of the exposed end of a plurality of conductors arranged in parallel. A U-shaped cutout is provided around the exposed portion of the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K1/14H05K1/02
CPCH05K1/0281H05K2201/2009H05K2201/09063H05K2201/10189H05K3/0058H05K2201/09109H05K1/118H05K2201/10598H05K2201/10446H05K2201/09145H05K2201/048H05K1/147
Inventor 永见哲郎芹泽新仁安井阳一
Owner MITSUBISHI ELECTRIC CORP
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