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：US20240275686A1

公开(公告)日：2024-08-15

申请号：US18436987

申请日：2024-02-08

Applicant: TECHTRONIC CORDLESS GP

Inventor： Xi GUO ,  Chao WEN ,  Hai Bo MA

IPC: H04L41/12 ,  G16Y40/35

CPC classification number: H04L41/12 ,  G16Y40/35

Abstract: An electrical appliance assembly for multiclient networking, comprising an electrical appliance and a battery unit, wherein the electrical appliance is configured to obtain electric energy from the battery unit or provide electric energy to the battery unit, wherein the electrical appliance, as a first client, comprises a first communication interface and a second communication interface, wherein the first communication interface is configured to communicate with a peripheral device, and the second communication interface is configured to communicate with the battery unit. The battery unit, as a second client, comprises a third communication interface and a fourth communication interface, wherein the third communication interface is configured to communicate with a peripheral device, and the fourth communication interface is configured to communicate with the electrical appliance.

公开(公告)号：US20250125632A1

公开(公告)日：2025-04-17

申请号：US18988320

申请日：2024-12-19

Applicant: TECHTRONIC CORDLESS GP

Inventor： Ye ZHANG ,  Chao WEN ,  Hai Bo MA

IPC: H02J7/00

Abstract: A communication control unit for establishing a communication line between an electrical unit and a battery unit, wherein there is an electrical power transmission line between the electrical unit and the battery unit, the communication control unit being configured to: in response to determining that a communication interference occurs between the communication control unit and the electrical unit and/or the battery unit during a period when the electrical unit supplies electrical power to the battery unit or acquires electrical power from the battery unit, switch a first communication protocol currently used for communication between the communication control unit and the electrical unit and/or the battery unit to a second communication protocol, wherein the second communication protocol has a higher anti-interference capability than the first communication protocol.

公开(公告)号：US20240333826A1

公开(公告)日：2024-10-03

申请号：US18597199

申请日：2024-03-06

Applicant: TECHTRONIC CORDLESS GP

Inventor： Zi Cong CHEN ,  Chao WEN

IPC: H04M1/02 ,  H04W4/06 ,  H04W76/11

CPC classification number: H04M1/0262 ,  H04W4/06 ,  H04W76/11

Abstract: A system including a battery pack provided with a connecting terminal and a wireless communication module, the battery pack configured to establish an electrical connection and communication connection with a terminal device via the connecting terminal and configured to issue broadcast information via the wireless communication module, the broadcast information including identity information of the terminal device connected to the battery pack.

公开(公告)号：US20240088804A1

公开(公告)日：2024-03-14

申请号：US18264149

申请日：2021-02-10

Applicant: TECHTRONIC CORDLESS GP

Inventor： Bao An ZHANG ,  Zi Cong CHEN ,  Li Hua XIE ,  Chao WEN ,  Yong Min LI

IPC: H02P3/22

CPC classification number: H02P3/22

Abstract: Provided is a motor braking device for a N-phase brushless motor. The motor braking device includes a switching circuit adapted to connect the N-phase brushless motor to a power supply, the switching circuit comprising a high side switch group and a low side switch group, each of the high side switch group and the low side switch group comprising N switching elements, and a control unit configured to control the switching circuit to brake the motor based on occurrence of a first event, the first event chosen from a group consisting of release of a trigger by a user, and occurrence of a predetermined condition as detected by a sensor. The control unit is configured to, upon occurrence of the first event, switch all the switching elements of one of the high side switch group or the low side switch group to an on-state, and simultaneously switch all the switching elements of the other one of the high side switch group and the lower side switch group to an off-state.