公开(公告)号：US20250047164A1

公开(公告)日：2025-02-06

申请号：US18570972

申请日：2021-06-16

Applicant: Techtronic Cordless GP

Inventor： Jin Cheng Li ,  Zheng Jun Wang ,  Dong Wei Li ,  Hai Yu Xu

IPC: H02K5/20 ,  A01B1/06 ,  A01B1/10 ,  B25F5/00 ,  F04D17/00 ,  F04D25/06 ,  H02K5/18 ,  H02K7/14 ,  H02K9/06

Abstract: Improved cooling systems for handheld devices are disclosed. In some aspects, the cooling system may utilize air inlets disposed behind a guard to prevent debris or liquids from entering the handheld device and potentially causing damage to internal components of the handheld device. In aspects, a vents may be disposed on the guard to divert cooling air into a housing of the handheld device to cool internal components, such as the motor or a printed circuit board (PCB). In additional or alternative aspects, a motor mount may be provided that includes ribs defining air channels to divert or direct cooling air to components to be cooled. The air channels provided by the motor mount may enable the cooling air to reach portions of the internal components that may be distant from the air inlets of the housing.