Shield flat cable

A flat cable and shielding film technology, applied in the direction of flat/ribbon cables, power cables, insulated cables, etc., can solve the problems of different height positions, unstable connection between ground conductors and ground pads, etc., and achieve the effect of reliable connection

Active Publication Date: 2018-03-13
SUMITOMO ELECTRIC IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the FFC in Patent Document 1 is connected to the connector, and the height positions in the thickness direction of the contact connection part and the ground conductor are diffe

Method used

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Examples

Experimental program
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Example

[0037] (First embodiment)

[0038] figure 1 It is a perspective view showing the outline of the shielded flat cable according to the first embodiment of the present invention. figure 2 From figure 1 The rear view of arrow A observed. image 3 From figure 1 The side view of the arrow B observed. Figure 4 It is a cross-sectional view showing the outline of the shielding film. Figure 5 It is a perspective view for explaining the connection of the shielded flat cable and the board according to the first embodiment of the present invention.

[0039] Such as figure 1 As shown, the shielded flat cable 10 according to this embodiment is composed of a plurality of flat conductors 11, insulating films 12 and 13, shielding films 14, and ground conductor 15. The shielded flat cable 10 is a flat cable in which, for example, a flat conductor 11 having a flat cross section and extending in the X-axis direction is arranged in parallel in the Y-axis direction, and the flat conductor 11 is sandwic...

Example

[0053] (Second embodiment)

[0054] Hereinafter, a second embodiment related to the shielded flat cable of the present invention will be described with reference to the drawings. Image 6 It is a perspective view showing the outline of the shielded flat cable according to the second embodiment of the present invention. Figure 7 From Image 6 The rear view of the arrow C observed. Figure 8 From Image 6 The arrow D observes the side view. and, Picture 9 From Image 6 The cross-sectional view of the arrow E observed. The shape and arrangement of the ground conductor are different between this embodiment and the first embodiment, and other structures are the same as those of the first embodiment, so only the different structures will be described.

[0055] Such as Figure 7 and Picture 9 As shown, the ground conductor 25 of the shielded flat cable 20 according to this embodiment is formed of a thin conductive metal foil in a "U" shape, and has a longitudinal extension of the flat ...

Example

[0060] (Third Embodiment)

[0061] Next, referring to the drawings, a third embodiment related to the shielded flat cable of the present invention will be described. Picture 11 It is a perspective view showing the outline of the shielded flat cable according to the third embodiment of the present invention. Picture 12 From Picture 11 The rear view of the arrow C observed. Figure 13 From Picture 11 The arrow D observes the side view. This embodiment is different from the second embodiment in that the end of the rectangular conductor is different, and the ground conductor is located between the insulating film and the shielding film as in the first embodiment. The other structure is the same as that of the second embodiment, so only the difference The structure is explained.

[0062] Such as Figure 11 to Figure 13 As shown, in this embodiment, all the surfaces of the flat conductor 11 may be exposed at the end of the shielded flat cable 40. By removing the insulating film 12 ...

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Abstract

The invention provides a shield flat cable, which can reliably connecting a grounding conductor with a grounding bonding pad. The shield flat cable (10) includes a plurality of flat conductors (11) inparallel, which are then wrapped with an insulation film (12, 13); the flat conductors (11) are exposed at at least one end to form cable ends (16); in the shield flat cable, the flat conductors (11)in the flat conductors (11) are covered with shield membrane (14); a grounding conductor (15), which has a stretched part (17) stretched out to the outer side of the shield membrane (14), is electrically contacted with the shield membrane (14); the stretched part (17) is located at the side of the exposed part that exposes the flat conductors (11).

Description

technical field [0001] The present invention relates to a shielded flat cable in which a plurality of conductors are arranged in parallel, covered with an insulating film, and the outer side of which is covered with a common shielding film, and has a conductor electrically connected to a substrate. terminal part. Background technique [0002] Flexible flat cables (FFC) are used in various fields such as AV equipment such as CD and DVD players, OA equipment such as copiers and printers, and internal wiring of other electronic and information equipment for the purpose of space saving and simple connection. use. In addition, as the frequency of use of the equipment increases, the influence of noise increases, so a shielded flat cable with shielding is used. [0003] The shielded flat cable has a terminal portion connected to a connector at the end. At the end portion, a structure (ground conductor) is required for electrically grounding the shielding film to the ground pad i...

Claims

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Application Information

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IPC IPC(8): H01R12/62H01R12/65H01B7/08
CPCH01B7/0838H01B7/0861H01R12/62H01R12/65H01B7/02H01B7/04H01B7/08H01B9/028
Inventor 松田龙男御影胜成小山惠司
Owner SUMITOMO ELECTRIC IND LTD
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