Assembly of a circuit board and a flexible flat cable, circuit board, and assembling method for a flexible flat cable

Patent metadata

Field	Value
Publication number	US-9426889-B2
Application number	US-201414231411-A
Country	US
Kind code	B2
Filing date	Mar 31, 2014
Priority date	Oct 25, 2013
Publication date	Aug 23, 2016
Grant date	Aug 23, 2016

Abstract

An assembly includes a circuit board and a flexible flat cable. The circuit board includes a board body having top, bottom and side faces, and a connection module. The board body is formed with a positioning slot that is formed through the top and bottom faces and that has a first length, and an opening that extends from the side face and that is in spatial communication with the positioning slot. The opening is formed through the top and bottom faces and has a second length shorter than the first length. The flexible flat cable includes a connection unit and a cable main body that has a width greater than the second length. The cable main body is able to pass through the opening, and extends through and is positioned in the positioning slot.

First claim

What is claimed is:

1. An assembly of a circuit board and a flexible flat cable, comprising:
a circuit board including a board body and a connection module disposed on the board body, the board body including a top face, a bottom face, and a side face connected between the top face and the bottom face, the connection module being disposed on the top face, the board body being formed with a positioning slot that is formed through the top face and the bottom face and that is spaced apart from and disposed between the connection module and the side face, and an opening that extends from the side face to the positioning slot and that is in spatial communication with the positioning slot, the positioning slot being elongated and having a first length, the opening being formed through the top face and the bottom face and having a second length shorter than the first length, the board body further including a long side that defines one side of the positioning slot adjacent to the connection module, the long side facing toward the opening; and
a flexible flat cable including a cable main body and a connection unit extending from one end of the cable main body, the connection unit being fixed to the connection module and connected electrically to the connection module, the cable main body having a width greater than the second length, the cable main body being able to pass through the opening and extending through and being positioned in the positioning slot;
wherein the board body includes at least one stop arm that faces toward the long side and that is spaced apart from the long side, the stop arm being configured to stop the cable main body; and
wherein the stop arm includes a guiding inclined face that is connected to the side face and that extends slantwise in a direction from the side face toward the long side, the guiding inclined face facing away from the positioning slot for abutting against the cable main body and for guiding entry of the cable main body through the opening.

2. The assembly of a circuit board and a flexible flat cable as claimed in claim 1 , wherein the first length of the positioning slot is greater than or equal to the width of the cable main body.

3. The assembly of a circuit board and a flexible flat cable as claimed in claim 1 , wherein the board body further includes two short sides that are respectively connected to opposite ends of the long side, the two short sides cooperatively defining the first length of the positioning slot therebetween, the stop arm extending from one of the two short sides and including an end face connected to the guiding inclined face, the other one of the two short sides extending to the side face and cooperating with the end face of the stop arm to define the second length of the opening therebetween.

4. The assembly of a circuit board and a flexible flat cable as claimed in claim 1 , wherein the board body includes two of the stop arms that are spaced apart from each other and that cooperate to define the opening, the stop arms facing toward the long side and being spaced apart from the long side, the stop arms being configured to stop the cable main body.

5. The assembly of a circuit board and a flexible flat cable as claimed in claim 4 , wherein each of the stop arms includes a guiding inclined face that is connected to the side face and that extends slantwise in a direction from the side face toward the long side, the guiding inclined face being configured to abut against the cable main body and guide entry of the cable main body through the opening.

6. The assembly of a circuit board and a flexible flat cable as claimed in claim 5 , wherein the board body further includes two short sides that are respectively connected to opposite ends of the long side, the two short sides cooperatively defining the first length of the positioning slot therebetween, the stop arms extending respectively from the two short sides, each of the stop arms further including an end face connected to the guiding inclined face, the end faces of the two stop arms cooperating to define the second length of the opening therebetween.

7. A circuit board suitable for assembling with a flexible flat cable, the flexible flat cable including a cable main body and a connection unit extending from one end of the cable main body, the cable main body having a width, the circuit board comprising:
a board body including a top face, a bottom face, and a side face connected between the top face and the bottom face, the board body being formed with a positioning slot that is formed through the top face and the bottom face and that is spaced apart from the side face, and an opening that extends from the side face to the positioning slot and that is in spatial communication with the positioning slot, the positioning slot being elongated and having a first length, the opening being formed through the top face and the bottom face and having a second length shorter than the first length, the width of the cable main body being greater than the second length, the cable main body being able to pass through the opening to extend through and be positioned in the positioning slot; and
a connection module disposed on the top face of the board body and configured to fix the connection unit and to connect electrically to the connection unit; and
the positioning slot of the board body being disposed between the connection module and the side face, the board body further including a long side that defines one side of the positioning slot adjacent to the connection module, the long side facing toward the opening;
wherein the board body includes at least one stop arm that faces toward the long side and that is spaced apart from the long side, the stop arm being configured to stop the cable main body; and
wherein the stop arm includes a guiding inclined face that is connected to the side face and that extends slantwise in a direction from the side face toward the long side, the guiding inclined face facing away from the positioning slot for abutting against the cable main body and for guiding entry of the cable main body through the opening.

8. The circuit board as claimed in claim 7 , wherein the first length of the positioning slot is greater than or equal to the width of the cable main body.

9. The circuit board as claimed in claim 7 , wherein the board body further includes two short sides that are respectively connected to opposite ends of the long side, the two short sides cooperatively defining the first length of the positioning slot therebetween, the stop arm extending from one of the two short sides and including an end face connected to the guiding inclined face, the other one of the two short sides extending to the side face and cooperating with the end face of the stop arm to define the second length of the opening therebetween.

10. The circuit board as claimed in claim 7 , wherein the board body includes two of the stop arms that are spaced apart from each other and that cooperate to define the opening, the stop arms facing toward the long side and being spaced apart from the long side, the stop arms being configured to stop the cable main body.

11. The circuit board as claimed in claim 10 , wherein each of the stop arms includes a guiding inclined face that is connected to the side face and that extends slantwise in a direction from the side face toward the long side, the guiding inclined face being configured to abut against the cable main body and guide entry of the cable main body through the opening.

12. The circuit board as claimed in claim 11 , wherein the board body further includes two short sides that are respectively connected to opposite ends of the long side, the two

Assignees

• Wistron Corp

Inventors

• Liu Yu-Ju
• Liu Che-Wen

Classifications

• H05K2201/10356

  Cables · CPC title

• H05K1/147 Primary

  at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit (H05K1/148 takes precedence) · CPC title

• H05K2201/09163

  Slotted edge · CPC title

• H05K1/117

  Pads along the edge of rigid circuit boards, e.g. for pluggable connectors · CPC title

• H05K2201/2027

  Guiding means, e.g. for guiding flexible circuits · CPC title