公开(公告)号：US20240055958A1

公开(公告)日：2024-02-15

申请号：US18267607

申请日：2021-12-15

Applicant: MAKITA CORPORATION

Inventor： Tsubasa YAGI ,  Hidekazu SUDA ,  Shunpei YAMAJI

IPC: H02K11/33 ,  B25F5/00

CPC classification number: H02K11/33 ,  B25F5/008 ,  H02K2211/03

Abstract: An electric work machine includes a motor, a circuit board, a case, at least one elastic member, and a filler. The circuit board includes a heat generating element mounted thereon, and the heat generating element generates heat due to the motor being driven. The case includes a heat dissipation part thermally coupled to the heat generating element and houses the circuit board therein. The at least one elastic member is placed between the circuit board and the case, and is housed inside the case. The filler is filled inside the case and fixes the circuit board and the at least one elastic member inside the case.