Flat cable with improved short-circuit prevention function

Patent metadata

Field	Value
Publication number	US-11264146-B2
Application number	US-201916615240-A
Country	US
Kind code	B2
Filing date	Jan 25, 2019
Priority date	Jan 25, 2018
Publication date	Mar 1, 2022
Grant date	Mar 1, 2022

Abstract

Disclosed is a flat cable with an improved function of preventing a short phenomenon that may occur when the flat cable is incorrectly inserted into a connector. The flat cable according to an embodiment of the present disclosure is a flat cable extending straight in a direction and having a front end that is inserted and connected to an external connector, and includes a plurality of conductors extending straight along a lengthwise direction of the flat cable, spaced apart a predetermined distance in a widthwise direction of the flat cable, and a cable body made of an insulating material, and extending straight along the lengthwise direction of the flat cable, wherein the conductors are mounted on at least one surface.

First claim

What is claimed is:

1. A flat cable extending straight in a lengthwise direction until a front edge, the flat cable comprising:
a plurality of conductors made of an electrical conductive material, and extending straight along the lengthwise direction of the flat cable to the front edge of the flat cable, wherein the plurality of conductors are spaced apart a predetermined distance in a widthwise direction of the flat cable;
a cable body made of an insulating material, and extending straight along the lengthwise direction of the flat cable, wherein the conductors are mounted on an upper surface of the cable body, wherein a cable insert portion of the cable body is configured to be inserted and connected to an external connector, wherein the cable insert portion of the cable body extends in the lengthwise direction until the front edge of the flat cable, and wherein the cable insert portion includes a protruding portion protruding out in the lengthwise direction of the flat cable beyond the plurality of conductors; and
a reinforcing portion positioned on the upper surface of the cable body, including at least part of the protruding portion, and configured to reinforce stiffness of the protruding portion, wherein the reinforcing portion extends in the lengthwise direction of the flat cable beyond the plurality of conductors,
wherein the reinforcing portion is positioned over a surface of the plurality of conductors such that the plurality of conductors are positioned between the cable body and the reinforcing portion.

2. The flat cable according to claim 1 , wherein the protruding portion is configured to protrude out a predetermined distance in the lengthwise direction beyond the plurality of conductors such that a gap is formed between an extension line defined by an end of the plurality of conductors and an extension line defined by an end of the protruding portion.

3. The flat cable according to claim 1 , wherein the protruding portion includes a plurality of protrusions, each protrusion extending in the lengthwise direction of the flat cable beyond the plurality of conductors.

4. The flat cable according to claim 3 , wherein the plurality of protrusions comprises at least two protrusions disposed at opposite ends of the cable body in the widthwise direction.

5. The flat cable according to claim 1 , wherein the protruding portion is configured to have a cuboid shape.

6. The flat cable according to claim 1 , wherein the cable insert portion of the cable body further includes at least one fixing portion formed concavely inward from opposing sides of the cable insert portion in the widthwise direction and configured to stably fix the cable insert part to the external connector when the cable insert part is inserted into the external connector.

7. The flat cable according to claim 1 , wherein the protruding portion is formed with a protrusion height that is higher than a height of a lead connected to a circuit board having the external connector.

8. A battery pack comprising the flat cable according to claim 1 .

9. The flat cable according to claim 1 , wherein the reinforcing portion extends from end to end of the cable insert part in the widthwise direction of the flat cable.

10. The flat cable according to claim 1 , wherein a front edge of the plurality of conductors is indented inward from a front edge of the protruding portion,
such that the front edge of the flat cable is a concave shape.

Assignees

• Lg Chemical Ltd
• Lg Energy Solution Ltd

Inventors

• Oh Kyu-Hwan
• Kim Bo-Sung
• Lee Chang-Bok
• Choi Yang-Lim

Classifications

• H01M50/519

  comprising printed circuit boards [PCB] · CPC title

• H01B7/0846 Primary

  Parallel wires, fixed upon a support layer · CPC title

• H01B7/02

  Disposition of insulation · CPC title

• H01B7/08 Primary

  Flat or ribbon cables · CPC title

• H01R12/79

  connecting to rigid printed circuits or like structures · CPC title