CA2810536C - Portable electric power tool with radio communication device - Google Patents

Portable electric power tool with radio communication device Download PDF

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Publication number
CA2810536C
CA2810536C CA2810536A CA2810536A CA2810536C CA 2810536 C CA2810536 C CA 2810536C CA 2810536 A CA2810536 A CA 2810536A CA 2810536 A CA2810536 A CA 2810536A CA 2810536 C CA2810536 C CA 2810536C
Authority
CA
Canada
Prior art keywords
voltage supply
power tool
supply source
voltage
radio communication
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.)
Active
Application number
CA2810536A
Other languages
French (fr)
Other versions
CA2810536A1 (en
Inventor
Carl Johan Erik Wallgren
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.)
Atlas Copco Industrial Technique AB
Original Assignee
Atlas Copco Industrial Technique AB
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 Atlas Copco Industrial Technique AB filed Critical Atlas Copco Industrial Technique AB
Publication of CA2810536A1 publication Critical patent/CA2810536A1/en
Application granted granted Critical
Publication of CA2810536C publication Critical patent/CA2810536C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/147—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for electrically operated wrenches or screwdrivers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/46—Accumulators structurally combined with charging apparatus
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/002—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which a reserve is maintained in an energy source by disconnecting non-critical loads, e.g. maintaining a reserve of charge in a vehicle battery for starting an engine
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Abstract

A portable electric power tool including a housing (10) with a connection terminal (20) for connection of a voltage supply source (22), an electric motor (14), an onboard operation control unit (16) and a radio communication device(17) for communicating tool operation and operation result data between the operation control (16) unit and a stationary data processing unit (18), and a back-up voltage accumulating device (25) arranged to keep up continuously a voltage supply to the control unit (16) and a radio communication device (17) at disconnection of the voltage supply source (22).

Description

Portable electric power tool with radio communication device.
The invention relates to a portable electric power tool including a housing with a connection terminal for connection of a voltage supply source, an electric motor, an onboard operation control unit and a radio communication device for communicating tool operation data and operation result data between the operation control unit and a stationary data processing unit.
The invention concerns battery as well as mains connected electric power tools, wherein the voltage supply source is disconnected from the tool from time to time such that the radio communication device and the operation control unit are temporarily left without any voltage supply.
In prior art electric power tools, for instance battery powered tools, there has been a problem related to an undesirable delay in reassuming the radio communication device operation and the start-up of tool operation from the instant the voltage supply, i.e. the power battery unit, is removed from the tool until another re-charged battery unit is connected to the tool and power voltage supply is restored. This is due to the fact that the radio communication device and the control unit require 10-15 seconds to start up the wireless communication with the stationary data processing unit to, thereby, enable start-up of the tool after a new battery unit has been connected and power voltage is again supplied. This delay in reassuming the power tool operation condition is considered to be too long in for instance assembly line applications
2 as it will influence negatively on the productivity of the tool.
It is an object of the invention to improve the productivity of portable electric power tools having an on-board control unit and a radio communication device by reducing substantially the delay in radio communication between the tool and a stationary data processing unit and thereby the delay in reassuming the tool operation condition at disconnection of the voltage supply source.
According to the present invention, there is provided a portable electric power tool, comprising a housing (10) with a connection terminal (20) for connection of a voltage supply source (22), an electric motor (14), an on-board operation control unit (16), and a radio communication device (17) for communicating operation data and operation result data between the power tool and a stationary data processing unit (18), characterized in that a back-up voltage accumulating device (25) is provided on-board the power tool to keep up continuously a voltage supply to the operation control unit (16) and the radio communication device (17) when the voltage supply source (22) is disconnected, so as to reduce the delay for reassuming the operation condition of the tool after re-connection of the voltage supply source (22).
Still further objects and advantages of the invention will appear from the following specification.

..
2a One embodiment of the invention is described below with references to the accompanying drawing.
In the drawing there is shown a power tool in the form of an electric angle wrench which comprises a housing 10 with an angle head 11, an output shaft 12 carrying a nut socket 13, and an electric motor 14. The tool further includes a schematically illustrated operation control unit 16 and a radio communication device 17 for communicating operation data as well as operation result data between the power
3 tool and a stationary remotely located data processing unit 18. The housing 10 of the power wrench shown in the drawing is provided with a docking portion 20 for receiving a rechargeable battery unit 22. The latter is exchangeable with one or more identical battery units for enable recharging of the battery units after a service period.
In order to keep up continuously a voltage supply to the radio communication device 17 and the control unit 16 at disconnection of the battery unit 22 there is provided a back-up voltage accumulating device 25. This back-up voltage accumulating device 25 may be an auxiliary battery unit or any other type of voltage accumulating means available, for instance a condenser, a super CAP or any other similar device.
Although the power tool illustrated in drawing is powered by a battery unit the invention is as well related to electric mains connected tools, wherein the tool housing 10 instead of the battery docking portion 20 is provided with a non-illustrated connection device for a mains connected cable. Also in power tools having a stationary electric mains network as a voltage supply source it is essential for keeping up the productivity of the power tool to keep up continuously the voltage supply to the radio communication device 17 and the control unit 16 to thereby avoid delays in bringing the tool back into operation condition after a temporary disconnection of the voltage supply cable. Therefore, the back-up voltage accumulating device 25 is an essential part also in this non-illustrated embodiment of the invention.
4 Either the power tool according to the invention uses a battery unit or an electric mains as a voltage supply source the back-up voltage accumulating device 25 is arranged to supply voltage to the radio communication device 17 and control unit 16 during the time interval the voltage supply source is disconnected only, but to be recharged at reconnection of the voltage supply source.
Thereby, the back-up voltage accumulating device 25 will always be fully charged to be able to keep up the voltage supply to the radio communication device 17 and the control unit 16 when the voltage supply source is disconnected next time. As stated above, the back-up voltage accumulating device 25 could be in the form an auxiliary battery unit and be arranged as a built-in component in the tool housing or as a detachable module easily exchangeable without dismantling the tool as required.

Claims (5)

WHAT IS CLAIMED IS :
1. Portable electric power tool, comprising a housing (10) with a connection terminal (20) for connection of a voltage supply source (22), an electric motor (14), an on-board operation control unit (16), and a radio communication device (17) for communicating operation data and operation result data between the power tool and a stationary data processing unit (18), characterized in that a back-up voltage accumulating device (25) is provided on-board the power tool to keep up continuously a voltage supply to the operation control unit (16) and the radio communication device (17) when the voltage supply source (22) is disconnected, so as to reduce the delay for reassuming the operation condition of the tool after re-connection of the voltage supply source (22).
2. Power tool according to claim 1, wherein said back-up voltage accumulating device (25) is arranged to supply voltage when the voltage supply source (22) is disconnected only and to be recharged by the voltage supply source (22) when the voltage supply source (22) is re-connected.
3. Power tool according to claim 1 or 2, wherein said voltage supply source (22) is a rechargeable battery unit, and said connection terminal (20) comprises a docking portion formed on the housing (10) and adapted to receive one of at least two exchangeable battery units (22).
4.
Power tool according to any one of claims 1 to 3, wherein said back-up voltage accumulating device (25) comprises an auxiliary battery unit detachably mounted on the housing (10).
5. Power tool according to claim 1 or 2, wherein said voltage supply source is an electric mains system connected to the power tool via a cable, and said connection terminal is a cable connecting device.
CA2810536A 2010-09-30 2011-06-29 Portable electric power tool with radio communication device Active CA2810536C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE1051017-0 2010-09-30
SE1051017A SE535458C2 (en) 2010-09-30 2010-09-30 Portable electric tool with a backup voltage accumulator
PCT/EP2011/060966 WO2012041547A1 (en) 2010-09-30 2011-06-29 Portable electric power tool with radio communication device

Publications (2)

Publication Number Publication Date
CA2810536A1 CA2810536A1 (en) 2012-04-05
CA2810536C true CA2810536C (en) 2016-04-19

Family

ID=44483736

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2810536A Active CA2810536C (en) 2010-09-30 2011-06-29 Portable electric power tool with radio communication device

Country Status (12)

Country Link
US (1) US20130277078A1 (en)
EP (1) EP2621683B1 (en)
JP (2) JP6144624B2 (en)
KR (1) KR101868175B1 (en)
CN (1) CN103097083B (en)
BR (1) BR112013007568B1 (en)
CA (1) CA2810536C (en)
ES (1) ES2533029T3 (en)
MX (1) MX2013003272A (en)
RU (1) RU2564371C2 (en)
SE (1) SE535458C2 (en)
WO (1) WO2012041547A1 (en)

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Also Published As

Publication number Publication date
SE535458C2 (en) 2012-08-14
JP6144624B2 (en) 2017-06-07
WO2012041547A1 (en) 2012-04-05
EP2621683A1 (en) 2013-08-07
ES2533029T3 (en) 2015-04-07
CN103097083B (en) 2015-03-11
CA2810536A1 (en) 2012-04-05
SE1051017A1 (en) 2012-03-31
BR112013007568B1 (en) 2021-01-19
KR20130116246A (en) 2013-10-23
KR101868175B1 (en) 2018-06-15
CN103097083A (en) 2013-05-08
JP2013538700A (en) 2013-10-17
EP2621683B1 (en) 2015-02-25
BR112013007568A2 (en) 2020-06-02
RU2564371C2 (en) 2015-09-27
US20130277078A1 (en) 2013-10-24
MX2013003272A (en) 2013-08-21
JP2017104978A (en) 2017-06-15
JP6490116B2 (en) 2019-03-27
RU2013119998A (en) 2014-11-10

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