Circuit board and battery connection module

Patent metadata

Field	Value
Publication number	US-2018198110-A1
Application number	US-201715842335-A
Country	US
Kind code	A1
Filing date	Dec 14, 2017
Priority date	Jan 9, 2017
Publication date	Jul 12, 2018
Grant date	—

Abstract

A circuit board and a battery connection module are provided. The circuit board has an insulating substrate and a plurality of circuit traces provided thereto. At least one of the traces is provided with a fuse unit. The fuse unit has a main fuse and at least one spare fuse. The main fuse has two main trace connection end portions respectively positioned at two ends of the main fuse and connected to the trace and a main fuse section connected between the two main trace connection end portions. The spare fuse has two trace connection end portions respectively positioned at two ends of the spare fuse and a fuse section connected between the two trace connection end portions, the fuse section and the main fuse section are spaced apart from each other and arranged side by side, and at least one of the two trace connection end portions is not connected with the trace so as to form an electrical disconnection with the trace, and after the main fuse section forms an electrical disconnection, the two trace connection end portions are connected to the trace so that a current conductive path is formed by the spare fuse and the trace.

First claim

What is claimed is:

1 . A circuit board, comprising:
an insulating substrate; and a plurality of circuit traces provided to the insulating substrate, at least one of the circuit traces being provided with a fuse unit, the fuse unit comprising a main fuse and at least one spare fuse, the main fuse having two main trace connection end portions respectively positioned at two ends of the main fuse and connected to the circuit trace and a main fuse section connected between the two main trace connection end portions, the spare fuse having two trace connection end portions respectively positioned at two ends of the spare fuse and a fuse section connected between the two trace connection end portions, the fuse section and the main fuse section being spaced apart from each other and arranged side by side, and at least one of the two trace connection end portions being not connected with the circuit trace so as to form an electrical disconnection with the circuit trace, and after the main fuse section forms an electrical disconnection, the two trace connection end portions being connected to the circuit trace so that a current conductive path is formed by the spare fuse and the circuit trace.

2 . The circuit board of claim 1 , wherein one of the trace connection end portions of the spare fuse is connected with one of the main trace connection end portions of the main fuse, and the other trace connection end portion is adjacent to, spaced apart from and thus is not connected with the other main trace connection end portion, after the main fuse section forms the electrical disconnection, the other trace connection end portion and the other the main trace connection end portion which are adjacent to and spaced apart from each other are connected so that the current conductive path is formed by the spare fuse and the circuit trace.

3 . The circuit board of claim 2 , wherein the other trace connection end portion and the other main trace connection end portion which adjacent to and spaced apart from each other each have an enlarged soldering pad area.

4 . The circuit board of claim 1 , wherein
the fuse unit comprises a plurality of spare fuses, and two of the plurality of spare fuses are defined as a first spare fuse and a second spare fuse, the first spare fuse has two first trace connection end portions respectively positioned at two ends of the first spare fuse and a first fuse section connected between the two first trace connection end portions, the first fuse section and the main fuse section are spaced apart form each other and arranged side by side, the two first trace connection end portions are respectively adjacent to the two main trace connection end portions, and one of the first trace connection end portions and one of the main trace connection end portions which are adjacent to each other are connected, the other first trace connection end portion and the other the main trace connection end portion which are adjacent to each other are spaced apart from each other and are not connected with each other so that the other first trace connection end portion forms an electrical disconnection with the circuit trace, the second spare fuse has two second trace connection end portions respectively positioned at two ends of the second spare fuse and a second fuse section connected between the two second trace connection end portions, the second fuse section and the first fuse section are respectively positioned at two sides of the main fuse section, spaced apart from the main fuse section and arranged side by side with the main fuse section, the two second trace connection end portions are respectively adjacent to the two main trace connection end portions, and one of the second trace connection end portions and one of the main trace connection end portion which are adjacent to each other are connected, and the other second trace connection end portion and the other the main trace connection end portion which are adjacent to each other are spaced from each other so that the other second trace connection end portion forms an electrical disconnection with the circuit trace.

5 . The circuit board of claim 4 , wherein one of the two main trace connection end portions is connected with the first spare fuse and spaced apart from the second spare fuse, and the other two main trace connection end portion is connected with the second spare fuse and spaced apart from the first spare fuse.

6 . The circuit board of claim 1 , wherein the fuse section and the main fuse section of the fuse unit are fusing type.

7 . The circuit board of claim 1 , wherein the insulating substrate is a flexible material.

8 . A battery connection module used to connect a plurality of batteries arranged side by side, the battery connection module comprising:
an insulating frame used to be provided on the plurality of batteries; a plurality of busbars provided to the insulating frame, each busbar being used to electrically connect electrodes of at least two adjacent batteries; a circuit board comprising an insulating substrate and a plurality of circuit traces provided to the insulating substrate; and a plurality of conductive connecting tabs, two ends of each conductive connecting tab being respectively connected with the circuit board and one of the busbars, and each conductive connecting tab being connected with one of the circuit traces; the plurality of circuit traces respectively electrically connected to the plurality of conductive connecting tabs each being provided with a fuse unit, the fuse unit comprising a main fuse and at least one spare fuse, the main fuse having two main trace connection end portions respectively positioned at two ends of the main fuse and connected to the corresponding circuit trace and a main fuse section connected between the two main trace connection end portions, the spare fuse having two trace connection end portions respectively positioned at two ends of the spare fuse and a fuse section connected between the two trace connection end portions, the fuse section and the main fuse section being spaced apart from each other and arranged side by side, and at least one of the two trace connection end portions being not connected with the corresponding circuit trace so as to form an electrical disconnection with the corresponding circuit trace, and after the main fuse section forms an electrical disconnection, the two trace connection end portions being connected to the corresponding circuit trace so that a current conductive path is formed by the spare fuse and the corresponding circuit trace.

9 . The battery connection module of claim 8 , wherein one of the trace connection end portions of the spare fuse is connected with one of the main trace connection end portions of the main fuse, and the other trace connection end portion is adjacent to, spaced apart from and thus is not connected with the other main trace connection end portion, after the main fuse section forms the electrical disconnection, the other trace connection end portion and the other the main trace connection end portion which are adjacent to and spaced apart from each other are connected so that the current conductive path is formed by the spare fuse and the corresponding circuit trace.

10 . The battery connection module of claim 9 , wherein the other trace connection end portion and the other main trace connection end portion which adjacent to and spaced apart from each other each have an enlarged soldering pad area.

11 . The battery connection module of claim 8 , wherein
the fuse unit comprises a plurality of spare fuses, and two of the plurality of spare fuses are defined as a first spare fuse and a second spare fuse, the firs

Assignees

• Molex Llc

Inventors

• Zeng Shang Xiu

Classifications

• H05K2201/10181

  Fuse · CPC title

• H05K2201/10037

  Printed or non-printed battery · CPC title

• H05K1/118

  specially for flexible printed circuits, e.g. using folded portions · CPC title

• H05K1/0293

  Individual printed conductors which are adapted for modification, e.g. fusable or breakable conductors, printed switches · CPC title

• H05K1/028

  Bending or folding regions of flexible printed circuits (H05K1/0283 takes precedence) · CPC title