Patent ID: 7479345

Claim:
A battery pack comprising: a housing for accommodating a set of batteries; and a circuit assembly accommodated in the housing at a corner thereof, the circuit assembly including a first substrate formed with a first wiring pattern, a second substrate formed with a second wiring pattern, and a joint member for electrically and/or mechanically connecting the first and the second substrates; wherein the joint member includes a set of leads physically and electrically separated from each other and extending generally parallel to each other, and a first and a second retainers transversely connecting the leads to each other; wherein each of the first and the second retainers is formed by molding a resin so as to be integral with the leads, the molding resin filling spaces between the leads, the retainer being spaced away from both the first substrate and the second substrate in a longitudinal direction of the leads; wherein the joint member further includes insulating tapes sandwiching the set of leads from above and below between the first retainer and the second retainer; and wherein the first retainer and the second retainer are spaced apart from each other in the longitudinal direction of the leads, and each of the retainers is spaced apart from the insulating tapes in the longitudinal direction of the leads.