US 12,278,386 B2
Battery pack and electronic device
Ken Sato, Kyoto (JP); Madoka Hamano, Kyoto (JP); Kenichi Ozawa, Kyoto (JP); Masashi Sato, Kyoto (JP); Mikio Yamamoto, Kyoto (JP); and Hiroyuki Ito, Kyoto (JP)
Assigned to Murata Manufacturing Co., Ltd., Kyoto (JP)
Filed by MURATA MANUFACTURING CO., LTD., Kyoto (JP)
Filed on Mar. 10, 2022, as Appl. No. 17/691,768.
Application 17/691,768 is a continuation of application No. PCT/JP2020/037608, filed on Oct. 2, 2020.
Claims priority of application No. 2019-184927 (JP), filed on Oct. 8, 2019.
Prior Publication US 2022/0209356 A1, Jun. 30, 2022
Int. Cl. H01M 50/284 (2021.01); H01M 50/107 (2021.01); H01M 50/566 (2021.01)
CPC H01M 50/284 (2021.01) [H01M 50/107 (2021.01); H01M 50/566 (2021.01); H01M 2220/30 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A battery pack comprising:
a circuit board;
a battery cell;
an exterior case having a cylindrical shape; and
a pair of external terminals respectively provided at both ends of the exterior case,
wherein
each of the external terminals includes an inserted portion to be inserted into the exterior case and an uninserted portion not to be inserted into the exterior case,
at least a part of the circuit board is disposed between the battery cell and the external terminals,
an elastic resin is provided so as to be in contact with the battery cell, the at least part of the circuit board, and the external terminals,
each of the external terminals includes a conductive portion and an insulating portion disposed around the conductive portion,
an outer end surface of the conductive portion is provided to be recessed inward with respect to an outer end surface of the insulating portion,
the inserted portion includes a cutout portion extending in a direction parallel to a longitudinal direction of the exterior case,
a recessed portion is formed at a position corresponding to the cutout portion in the exterior case, and
the cutout portion has a shape in which a width on a tip side is larger than a width on an open end side.