A battery pack that enhances the reliability and coupling force of a connection member electrically connecting two protective circuit boards is disclosed. The battery pack includes: a secondary battery including a positive electrode and a negative electrode; a first protective circuit board electrically connected to the battery; a second protective circuit board electrically connected to the first protective circuit board; and at least one conductive plate coupled to one surface of the first protective circuit board and one surface of the second protective circuit board.

Claims

20 · 1 independent · depth 4

20 granted claims

›1.independentA battery pack comprising:na secondary battery including a positive electrode and a negative electrode;a first protective circuit board electrically c…+19

›2.↳ 1The battery pack of claim 1, wherein the at least one conductive plate is a first conductive plate coupled to the first protective circuit board and t…d2+5

›3.↳ 2The battery pack of claim 2, wherein the first conductive plate is electrically connected to the positive electrode of the battery and the second cond…d3

›4.↳ 2The battery pack of claim 2, further comprising a flexible printed circuit board (FPCB) formed between the first conductive plate and the second condu…d3+1

›12.↳ 2The battery pack of claim 2, wherein the soldering portion corresponding to the first protective circuit board has a coupling area securing region for…d3

›13.↳ 2The battery pack of claim 2, wherein a distance between a first imaginary tangential line tangential to a full curve point of the first bending portio…d3

›6.↳ 1The battery pack of claim 1, wherein the conductive plate has a first electrical connection region in contact with the first protective circuit board,…d2+6

›7.↳ 6The battery pack of claim 6, wherein the soldering portion includes a first soldering portion formed between the first bending region and the first pr…d3

›8.↳ 6The battery pack of claim 6, wherein the first electrical connection region has a shape corresponding to that of the second electrical connection regi…d3

›9.↳ 6The battery pack of claim 6, wherein a central portion of the connection region is bent so as to maintain the angle between the first protective circu…d3

›10.↳ 6The battery pack of claim 6, wherein a portion of the first electrical connection region that makes contact with the first protective circuit board ha…d3

›11.↳ 6The battery pack of claim 6, wherein the first bending region has a first bending portion bent from the first electrical connection region and a secon…d3

›19.↳ 6The battery pack of claim 6, wherein the connection region is bendable so as to allow the second protective circuit to be mounted so as to extend in a…d3

›14.↳ 1The battery pack of claim 1, wherein the thickness of the conductive plate is 0.35 mm to 1.1 mm.d2

›15.↳ 1The battery pack of claim 1, wherein the first protective circuit board includes a first insulation substrate, a first printed circuit pattern coupled…d2+2

›18.↳ 1The battery pack of claim 1, wherein the conductive plate has soldering recesses around its surface in communication with the first protective circuit…d2

›20.↳ 1The battery pack of claim 1, wherein the conductive plate has a first and a second electrical connection region that respectively couples to the first…d2

Classifications

8 codes

IPC · International Patent Classification

Section H — Electricity

H01M2/22
H05K5/00
H01M2/10

USPC · US Patent Classification

429/121361/752439/65429/7439/500

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Pendency

3.5 y

1,272 days filing → grant

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non-final + final

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no RCE

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Examiner

John S Maples

art unit 1728 · TC 1700

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Citations: 25 back · 0 forward

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Priority chain

1 priority documents

›Priority documents — 1

Type	Document	Date
related publication	US 20090246627 A1	1 Oct 2009

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