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.

公开(公告)号：US20240306522A1

公开(公告)日：2024-09-19

申请号：US18570990

申请日：2021-09-06

Applicant: Techtronic Cordless GP

Inventor： Zheng Jun Wang ,  Jin Cheng Li ,  Dong Wei Li

IPC: A01B1/06 ,  A01B1/14 ,  B25F5/00

CPC classification number: A01B1/065 ,  A01B1/14 ,  B25F5/008

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, 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 some 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. Transfer housings and gear guides may also be provided to improve stabilization and enhance cooling.

公开(公告)号：US20220143802A1

公开(公告)日：2022-05-12

申请号：US17523858

申请日：2021-11-10

Applicant: TECHTRONIC CORDLESS GP

Inventor： Yan Jia Wang ,  Wai Chung Lee ,  Zheng Jun Wang ,  Jin Cheng Li ,  Dong Wei Li ,  Zhi Yang Li ,  Koon For Chung

IPC: B25F5/02 ,  B25G1/06 ,  B25G3/38

Abstract: The utility model discloses a long-rod-type electric tool, comprising: a handle assembly, the handle assembly comprising a power supply unit; a machine head assembly, the machine head assembly comprising a driving unit and an operating unit connected to the driving unit; a long rod assembly, the long rod assembly being arranged between the handle assembly and the machine head assembly; and at least one interface. The long-rod-type electric tool is configured to make an orientation of the operating unit relative to the long rod assembly adjustable in at least one degree of freedom by means of the at least one interface.