公开(公告)号：US20240332983A1

公开(公告)日：2024-10-03

申请号：US18613743

申请日：2024-03-22

Applicant: Techtronic Cordless GP

Inventor： Ye ZHANG ,  Ren Jie WANG ,  Chao WEN ,  Hai Bo MA

IPC: H02J7/00 ,  H01M10/46 ,  H01M10/48

CPC classification number: H02J7/00032 ,  H01M10/46 ,  H01M10/486 ,  H02J7/00309 ,  H02J7/0047 ,  H02J7/0063 ,  H02J7/00711 ,  H01M2220/30

Abstract: A battery pack electrically comprising a temperature terminal and is configured such that when an external device is electrically connected to the battery pack, the device can detect the temperature of the battery pack, and the battery pack is further configured to receive a PWM signal from the external device when in the electrical connection state, and, on the basis of the PWM signal, determine the type and/or operating state of the external device. Also disclosed, a power tool system comprising the battery pack, as well as a communication system for the battery pack and the system. With the battery pack and the power tool system, it is possible to perform both a temperature sampling function and a function of identifying external device information only by a temperature terminal of the battery pack, thus same have the advantages of a simple and compact structure and low cost.

公开(公告)号：US20240396107A1

公开(公告)日：2024-11-28

申请号：US18670251

申请日：2024-05-21

Applicant: Techtronic Cordless GP

Inventor： Ren Jie WANG ,  Ya Bin LIU ,  Liang He WANG ,  Hai Bo MA

IPC: H01M10/48 ,  G01K1/143 ,  G01K1/16 ,  H01M10/653 ,  H01M50/213

Abstract: A battery pack, comprising: a housing; a battery cell assembly; a circuit board; and a battery cell supporting member. The battery pack further comprises a temperature detection device. The temperature detection device comprises: a temperature sensor for detecting the temperature of a battery cell surface; and a thermally conductive element disposed corresponding to the temperature sensor, wherein the thermally conductive element is located between the temperature sensor and the battery cell surface, transfers the temperature of the battery cell surface to the temperature sensor, and fixes the position of the temperature sensor relative to the battery cell surface, and wherein the cell supporting member is provided with a through hole corresponding to the position of the temperature detection device, and the through hole allows the temperature sensor and/or the thermally conductive element to be at least partially located in the through hole.

公开(公告)号：US20240055879A1

公开(公告)日：2024-02-15

申请号：US18365725

申请日：2023-08-04

Applicant: TECHTRONIC CORDLESS GP

Inventor： Ren Jie WANG ,  Xi GUO ,  Hai Bo MA

IPC: H02J7/00

CPC classification number: H02J7/0063 ,  H02J7/0047 ,  H02J7/00032

Abstract: A battery management circuit a logic control module configured to output a power control signal in response to receiving a logic-enable signal, and to skip outputting a power control signal in response to receiving no logic-enable signal; a power control module configured to turn on the power supply from a battery to the main control module in response to receiving a power control signal from the logic control module, and to turn off the power supply from the battery to the main control module in response to receiving no power control signal from the logic control module; a main control module configured to send a logic-enable signal to the logic control module when powered from a battery, and to skip sending the logic-enable signal to the logic control module when in a first predetermined state.