SE531997C2 - Power supply unit for electric portable tools - Google Patents

Power supply unit for electric portable tools

Info

Publication number
SE531997C2
SE531997C2 SE0702835A SE0702835A SE531997C2 SE 531997 C2 SE531997 C2 SE 531997C2 SE 0702835 A SE0702835 A SE 0702835A SE 0702835 A SE0702835 A SE 0702835A SE 531997 C2 SE531997 C2 SE 531997C2
Authority
SE
Sweden
Prior art keywords
tool
tools
control section
built
power supply
Prior art date
Application number
SE0702835A
Other languages
Swedish (sv)
Other versions
SE0702835L (en
Inventor
Karl Johan Lars Elsmark
Tobias Axel Lindbaeck
Original Assignee
Atlas Copco 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 Ab filed Critical Atlas Copco Ab
Priority to SE0702835A priority Critical patent/SE531997C2/en
Publication of SE0702835L publication Critical patent/SE0702835L/en
Publication of SE531997C2 publication Critical patent/SE531997C2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • 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
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
    • H01R25/006—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits the coupling part being secured to apparatus or structure, e.g. duplex wall receptacle
    • 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
    • H02P4/00—Arrangements specially adapted for regulating or controlling the speed or torque of electric motors that can be connected to two or more different electric power supplies
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/222—Demand response systems, e.g. load shedding, peak shaving

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Numerical Control (AREA)

Description

Ytterligare ändamål och fördelar med uppfinningen framgår av den följande beskrivningen och patentkraven. Further objects and advantages of the invention will become apparent from the following description and claims.

En foredragen utföringsform av uppfinningen beskrivs nedan i detalj under hänvisning till bifogade ritning.A preferred embodiment of the invention is described below in detail with reference to the accompanying drawing.

Ritningsförteckning Fig. l visar en perspektivvy av en kraftförsörjningsenhet enligt uppfinningen ansluten till två portabla verktyg.List of drawings Fig. 1 shows a perspective view of a power supply unit according to the invention connected to two portable tools.

Fig. 2 visar schematiskt en kraftförsörjningsenhet enligt uppfinningen ansluten till två verktyg.Fig. 2 schematically shows a power supply unit according to the invention connected to two tools.

Kraftförsörjningsenheten l0 som illustreras i ritningsfigurerna är avsedd att mata växelspänning till ett antal alternativa kabelanslutna portabla elektriska verktyg lla,c innefattande borstlösa motorer, i första hand men inte uteslutande portabla slipmaskiner.The power supply unit 10 illustrated in the drawing figures is intended to supply alternating voltage to a number of alternative wired portable power tools 11a, c including brushless motors, primarily but not exclusively portable grinding machines.

Kraftförsörjningsenheten 10 innefattar en spänningsomvandlare 13 kopplad till ett växelströmsnät via en kabel 15, och en programmerbar styrsektion 14 anordnad att anpassa den levererade drivkraften från spänningsomvandlaren l3 vad avser spänning, frekvens m.m. i enlighet med de arbetsparametervärden som krävs för vart och ett av de anslutna verktygen. Kraftförsörjningsenheten som illustreras är försedd med fyra utgångar l2a-d till vilka endast två verktyg lla,c är fysiskt anslutna via kablar. Vilket antal verktyg som helst mellan ett och fyra kan fysiskt anslutas till kraftförsörjningsenheten 10.The power supply unit 10 comprises a voltage converter 13 connected to an alternating current network via a cable 15, and a programmable control section 14 arranged to adapt the delivered driving force from the voltage converter 13 in terms of voltage, frequency, etc. in accordance with the working parameter values required for each of the connected tools. The power supply unit illustrated is provided with four outputs 12a-d to which only two tools 11a, c are physically connected via cables. Any number of tools between one and four can be physically connected to the power supply unit 10.

I ett system som det ovan beskrivna innefattar varje verktyg lla,c ett programmerbart inbyggt minne i vilket verktygsspecifika arbetsparametervärden lagras. Aktuella arbetsparametrar kan vara motorvarvtalet som bestäms av spänningsfrekvensen, och avgivet moment vilket bestäms av 531 H3? spännings- och strömstyrkenivàer m.m. Under arbete har dessa parametervärden kommunicerats från det i verktyget inbyggda minnet till styrsektionen 14 hos kraftforsörjningsenheten 10 for att få den senare att anpassa den levererade drivkraften till det aktuella verktygets behov. Kraftförsörjningsenheten 10 är emellertid anordnad att mata drivkraft till ett i taget av de fysiskt anslutna verktygen lla,c, vilket innebär att styrsektionen 14 kommunicerar med och anpassar drivkraftens parametervärden till behovet hos endast ett i taget av verktygen. För att upprätta kommunikation mellan de alternativa utgàngarna l2a-d och de anslutna verktygen lla,c à ena sidan och styrsektionen 14 å den andra sidan är anordnad en utgàngsomkopplare 16. Denna utgàngsomkopplare 16 kommunicerar konstant med utgàngarna l2a-d och är anordnad att öppna upp kommunikation mellan styrsektionen 14 och den av utgångarna l2a-d till vilken är anslutet ett verktyg som initieras att starta.In a system such as the one described above, each tool 11a, c comprises a programmable built-in memory in which tool-specific working parameter values are stored. Current working parameters can be the motor speed which is determined by the voltage frequency, and the torque delivered which is determined by 531 H3? voltage and current levels, etc. During operation, these parameter values have been communicated from the memory built into the tool to the control section 14 of the power supply unit 10 to cause the latter to adapt the delivered driving force to the needs of the tool in question. However, the power supply unit 10 is arranged to supply driving force to one at a time of the physically connected tools 11a, c, which means that the control section 14 communicates with and adapts the parameter values of the driving force to the need of only one of the tools at a time. To establish communication between the alternative outputs l2a-d and the connected tools 11a, c on the one hand and the control section 14 on the other hand, an output switch 16 is arranged. This output switch 16 constantly communicates with the outputs l2a-d and is arranged to open up. communication between the control section 14 and that of the outputs 12a-d to which is connected a tool which is initiated to start.

Innan arbetet av något av verktygen påbörjas genomförs en bekräftelsefas där alla de till utgàngarna l2a-d fysiskt anslutna verktygen lla,c sekventiellt kopplas till styrsektionen 14 för identifikation, en s.k. "mapping”- procedur. Detta innebär att styrsektionen 14 senare snabbt kan känna igen vilket av verktygen som för tillfället är kopplat till styrsektionen 14 via utgàngsomkopplaren 16 och som initierats att starta.Before the work of any of the tools begins, a confirmation phase is carried out in which all the tools 11a, c physically connected to the outputs 12a-d are sequentially connected to the control section 14 for identification, a so-called "mapping" procedure. This means that the control section 14 can later quickly recognize which of the tools is currently connected to the control section 14 via the output switch 16 and which has been initiated to start.

Vid drift av ett av verktygen lla,c styr styrsektionen 14 verktygets arbete genom styrning av den levererade drivkraften från spänningsomvandlaren 13 i enlighet med de arbetsdata som finns lagrade i det inbyggda minnet hos verktyget. Exempelvis styrs verktyget så att ett önskat varvtal upprätthålls genom justering av frekvensen, och den utgående effekten genom justering av spänningen Och strömstyrkan hos den levererade drivkraften.When operating one of the tools 11a, c, the control section 14 controls the operation of the tool by controlling the delivered driving force from the voltage converter 13 in accordance with the working data stored in the built-in memory of the tool. For example, the tool is controlled so that a desired speed is maintained by adjusting the frequency, and the output power by adjusting the voltage and current of the delivered driving force.

Andra styrparametrar kan vara verktygets temperatur vilken kontinuerligt övervakas av en temperaturgivare (icke visad) och jämförs med ett önskat gränsvärde som lagrats i det inbyggda minnet, varvid styrsektionen 14 instrueras att åtminstone åstadkomma en väsentlig reduktion av den tillförda drivkraften till verktyget då denna temperaturgrans uppnås.Other control parameters may be the temperature of the tool which is continuously monitored by a temperature sensor (not shown) and compared with a desired limit value stored in the built-in memory, the control section 14 being instructed to at least significantly reduce the driving force applied to the tool when this temperature limit is reached.

En annan styrande parameter kan vara den ackumulerade driftstiden hos verktyget, vilket innebär att driftstiden registreras och ackumhleras i verktygets inbyggda minne, varvid styrsektionen 14 är anordnad att då en förutbestämd total driftstid uppnåtts avge en signal för att Varna operatören att verktyget som för tillfället används bör tas ur produktion och överses.Another controlling parameter may be the accumulated operating time of the tool, which means that the operating time is registered and accumulated in the tool's built-in memory, the control section 14 being arranged to emit a signal when a predetermined total operating time has been reached to warn the operator that the tool currently used taken out of production and overlooked.

Claims (2)

LH Nya Patentkrav.LH New Patent Claims. 1. Kraftförsörjningsenhet för matning av drivkraft via kabel till ett elektriskt portabelt verktyg (l1a,c) av den typ som är försett med ett inbyggt minne i vilket är lagrat lämpliga arbetsparametervärden, innefattande en programmerbar styrsektion (14) anordnad att styra kraftmatningen till verktyget (11a,c) i enlighet med de arbetsparametervärden som lagrats i nämnda inbyggda minne, k ärin et:e c} 0 att två eller fler utgångar (l2a-d) är anordnade för samtidig fysisk anslutning av tvâ eller fler verktyg av nämnda typ, 0 att en utgàngsomkopplare (16) för alternativ sammankoppling av styrsektionen (14) med just den av nämnda två eller fler utgångar (l2a-d) vilken kommunicerar med just det av nämnda två eller fler verktyg (11a,c) som initieras att startas, och 0 att nämnda utgàngsomkopplare (16) är anordnad att i en förberedande ”mapping”~procedur sekventiellt koppla samtliga fysiskt anslutna verktyg till styrsektionen (14) for identifiering av varje verktyg (lla,c) genom de arbetsparametervärden som lagrats i nämnda inbyggda minne hos respektive verktyg och för snabbt igenkännande av ett visst verktyg (1la,c) vid en senare inkoppling av detta via utgàngsomkopplaren (16), varvid 0 styrsektionen (14) är anordnad att styra arbetet hos just det verktyg av nämnda två eller fler verktyg (1la,c) som för tillfället är inkopplat via utgångsomkopplaren (16) i enlighet med de arbetsparametervärden som lagrats i detta verktygs inbyggda minne och som identifierats av styrsektionen (14) i nämnda ”mapping”-procedur.A power supply unit for supplying propulsion via cable to an electrically portable tool (11a, c) of the type provided with a built-in memory in which suitable working parameter values are stored, comprising a programmable control section (14) arranged to control the power supply to the tool ( 11a, c) in accordance with the working parameter values stored in said built-in memory, it is stated that two or more outputs (12a-d) are arranged for simultaneous physical connection of two or more tools of said type, 0 that an output switch (16) for alternative interconnection of the control section (14) with just that of said two or more outputs (12a-d) which communicates with just that of said two or more tools (11a, c) which is initiated to be started, and that said output switch (16) is arranged to sequentially in a preparatory "mapping" procedure sequentially connect all physically connected tools to the control section (14) for identification of each tool (11a, c) by the working parameters values stored in said built-in memory of the respective tool and for rapid recognition of a certain tool (11a, c) at a later connection thereof via the output switch (16), the control section (14) being arranged to control the work of that particular tool. of said two or more tools (1la, c) which are currently connected via the output switch (16) in accordance with the working parameter values stored in this tool's built-in memory and identified by the control section (14) in said "mapping" procedure. 2. Kraftförsörjningsenhet enligt kravet 1, k ärin et:e c kr1a d av att de arbetsparametervärden som lagrats i det inbyggda minnet hos nämnda två eller fler verktyg (lla,c) innefattar en önskad temperaturgräns, och att varje verktyg är försett med en temperaturgivare, varvid styrsektionen (14) är anordnad 0 att inhämta information från det inbyggda minnet huruvida nämnda temperaturgräns har uppnåtts, och 0 att åtminstone väsentligt reducera kraftmatningen till verktyget (l1a,c) då nämnda temperaturgräns nåtts.A power supply unit according to claim 1, characterized in that the working parameter values stored in the built-in memory of said two or more tools (11a, c) comprise a desired temperature limit, and that each tool is provided with a temperature sensor, wherein the control section (14) is arranged 0 to obtain information from the built-in memory whether said temperature limit has been reached, and 0 to at least substantially reduce the power supply to the tool (11a, c) when said temperature limit has been reached.
SE0702835A 2007-12-20 2007-12-20 Power supply unit for electric portable tools SE531997C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE0702835A SE531997C2 (en) 2007-12-20 2007-12-20 Power supply unit for electric portable tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0702835A SE531997C2 (en) 2007-12-20 2007-12-20 Power supply unit for electric portable tools

Publications (2)

Publication Number Publication Date
SE0702835L SE0702835L (en) 2009-06-21
SE531997C2 true SE531997C2 (en) 2009-09-22

Family

ID=40863491

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0702835A SE531997C2 (en) 2007-12-20 2007-12-20 Power supply unit for electric portable tools

Country Status (1)

Country Link
SE (1) SE531997C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106161489A (en) * 2015-01-29 2016-11-23 苏州宝时得电动工具有限公司 The data transmission system of electric tool

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106161489A (en) * 2015-01-29 2016-11-23 苏州宝时得电动工具有限公司 The data transmission system of electric tool
US11330771B2 (en) 2015-01-29 2022-05-17 Positec Power Tools (Suzhou) Co., Ltd. Intelligent gardening system and external device communicating therewith

Also Published As

Publication number Publication date
SE0702835L (en) 2009-06-21

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