EP4076859A4 - Power tool having variable output - Google Patents

Power tool having variable output Download PDF

Info

Publication number
EP4076859A4
EP4076859A4 EP21851657.3A EP21851657A EP4076859A4 EP 4076859 A4 EP4076859 A4 EP 4076859A4 EP 21851657 A EP21851657 A EP 21851657A EP 4076859 A4 EP4076859 A4 EP 4076859A4
Authority
EP
European Patent Office
Prior art keywords
power tool
variable output
variable
output
tool
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21851657.3A
Other languages
German (de)
French (fr)
Other versions
EP4076859A1 (en
Inventor
Zhongkang FANG
Hai Bo Ma
Chao Wen
Yongmin Li
Huan Fa XI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Techtronic Cordless GP
Original Assignee
Techtronic Cordless GP
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Techtronic Cordless GP filed Critical Techtronic Cordless GP
Publication of EP4076859A1 publication Critical patent/EP4076859A1/en
Publication of EP4076859A4 publication Critical patent/EP4076859A4/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
    • H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
    • H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
    • H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
    • H02P7/285—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
    • H02P7/29—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using pulse modulation
EP21851657.3A 2021-02-25 2021-02-25 Power tool having variable output Pending EP4076859A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2021/077945 WO2022178774A1 (en) 2021-02-25 2021-02-25 Power tool having variable output

Publications (2)

Publication Number Publication Date
EP4076859A1 EP4076859A1 (en) 2022-10-26
EP4076859A4 true EP4076859A4 (en) 2023-09-20

Family

ID=83047676

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21851657.3A Pending EP4076859A4 (en) 2021-02-25 2021-02-25 Power tool having variable output

Country Status (3)

Country Link
EP (1) EP4076859A4 (en)
CN (1) CN115551679A (en)
WO (1) WO2022178774A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0808018A1 (en) * 1996-05-13 1997-11-19 Black & Decker Inc. Electrical power tool having a motor control circuit for providing improved control over the torque output of the power tool
US20160190965A1 (en) * 2014-12-26 2016-06-30 Panasonic Intellectual Property Management Co., Ltd. Impact rotation tool
US20200220485A1 (en) * 2015-04-07 2020-07-09 Black & Decker Inc. Power tool with automatic feathering mode

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6424799B1 (en) * 1993-07-06 2002-07-23 Black & Decker Inc. Electrical power tool having a motor control circuit for providing control over the torque output of the power tool
JP2014069253A (en) * 2012-09-28 2014-04-21 Hitachi Koki Co Ltd Power tool
JP6107385B2 (en) * 2013-04-26 2017-04-05 日立工機株式会社 Electric tool
CN105093973A (en) * 2014-05-16 2015-11-25 苏州宝时得电动工具有限公司 Electric tool and control method thereof
US10243491B2 (en) * 2014-12-18 2019-03-26 Black & Decker Inc. Control scheme to increase power output of a power tool using conduction band and advance angle
CN109873578B (en) * 2017-12-04 2023-03-24 南京泉峰科技有限公司 Electric tool and control method thereof
CN110572089B (en) * 2019-09-30 2024-03-19 南京泉峰科技有限公司 Electric tool and control method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0808018A1 (en) * 1996-05-13 1997-11-19 Black & Decker Inc. Electrical power tool having a motor control circuit for providing improved control over the torque output of the power tool
US20160190965A1 (en) * 2014-12-26 2016-06-30 Panasonic Intellectual Property Management Co., Ltd. Impact rotation tool
US20200220485A1 (en) * 2015-04-07 2020-07-09 Black & Decker Inc. Power tool with automatic feathering mode

Also Published As

Publication number Publication date
WO2022178774A1 (en) 2022-09-01
CN115551679A (en) 2022-12-30
EP4076859A1 (en) 2022-10-26

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Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

RIN1 Information on inventor provided before grant (corrected)

Inventor name: XI, HUAN FA

Inventor name: LI, YONGMIN

Inventor name: WEN, CHAO

Inventor name: MA, HAI BO

Inventor name: FANG, ZHONGKANG

A4 Supplementary search report drawn up and despatched

Effective date: 20230821

RIC1 Information provided on ipc code assigned before grant

Ipc: H02P 7/29 20160101ALI20230814BHEP

Ipc: B25F 5/00 20060101AFI20230814BHEP