EP3028822A1 - Machine-outil portative, partie de réseau sans ventilateur et système d'outil - Google Patents

Machine-outil portative, partie de réseau sans ventilateur et système d'outil Download PDF

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Publication number
EP3028822A1
EP3028822A1 EP14195557.5A EP14195557A EP3028822A1 EP 3028822 A1 EP3028822 A1 EP 3028822A1 EP 14195557 A EP14195557 A EP 14195557A EP 3028822 A1 EP3028822 A1 EP 3028822A1
Authority
EP
European Patent Office
Prior art keywords
tool
power supply
fanless
opening portion
vent
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.)
Withdrawn
Application number
EP14195557.5A
Other languages
German (de)
English (en)
Inventor
Holger Cecchin
Bernd Ziegler
Ralf Meixner
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.)
Hilti AG
Original Assignee
Hilti AG
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 Hilti AG filed Critical Hilti AG
Priority to EP14195557.5A priority Critical patent/EP3028822A1/fr
Priority to CN201580056118.9A priority patent/CN107073695B/zh
Priority to US15/531,977 priority patent/US10569407B2/en
Priority to PCT/EP2015/078015 priority patent/WO2016087344A1/fr
Priority to EP15801837.4A priority patent/EP3227060B1/fr
Publication of EP3028822A1 publication Critical patent/EP3028822A1/fr
Withdrawn legal-status Critical Current

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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
    • 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
    • B25F5/008—Cooling means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/20—Devices for cleaning or cooling tool or work
    • 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
    • B25F5/02—Construction of casings, bodies or handles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D2217/0057—Details related to cleaning or cooling the tool or workpiece
    • B25D2217/0061—Details related to cleaning or cooling the tool or workpiece related to cooling

Definitions

  • the present invention relates to a hand tool, in particular a hammer drill or combi hammer.
  • the handheld power tool has a tool housing, which has a receptacle bay designed for interchangeable reception of a rechargeable battery or mains current part.
  • the portable power tool also has an electric drive motor with a cooling fan and a first vent opening section arranged on the tool housing outside the receiving bay. By means of this first ventilation opening section, a volumetric flow generated by the cooling fan of the handheld power tool can be guided. In this way, the electric drive motor of the power tool, which develops heat during operation, can be cooled.
  • Hand tool in particular a rotary hammer or combi hammer, can be optionally supplied by an accumulator or a mains power supply with electrical energy when they are connected to the power tool.
  • the power supply part has for this purpose a power cable, which establishes a connection to a mains power source (also called socket).
  • the present invention also relates to a fanless mains power supply for a hand tool, wherein the fanless mains power supply is designed for interchangeable recording within a receiving bay of a power tool.
  • the present invention relates to a tool system with a hand tool and a fanless mains power supply.
  • the object is achieved in that the tool housing has a second ventilation opening section, which is different from the first ventilation opening section, which is arranged within the receiving bay and through which the volume flow generated by the cooling fan can be guided at least partially.
  • a volume flow generated by the cooling fan of the handheld power tool can now be guided at least partially through the second ventilation opening section into the receiving bay and used there for cooling tasks.
  • the second ventilation opening section is provided such that a closed surface accumulator (tool accumulator of the prior art) accommodated in the receiving bay closes the second ventilation opening section.
  • a closed-surface accumulator accommodated in the receptacle can be force-cooled (by a volumetric flow generated by the cooling ventilator and passing through the first vent opening and past the accumulator via the second vent opening section).
  • the first and / or the second vent opening section are open when the intake bay is empty to the ambient air.
  • the receiving bay is designed for tool-less interchangeable receiving a battery or mains power supply.
  • the first ventilation opening section is arranged on the housing such that a volumetric flow component produced by the cooling ventilator and passing through the first ventilation opening section flows axially to a ventilation axis of the cooling ventilator.
  • the second ventilation opening section is preferably arranged on the housing in such a way that a volume flow component generated by the cooling fan and flowing through the second ventilation opening section flows transversely to the ventilation axis of the cooling ventilator.
  • the handheld power tool has a flow control means which is designed to distribute a volume flow generated by the cooling fan between the first and second ventilation sections as a function of a rechargeable battery or mains current part to be accommodated in the receiving bay.
  • a higher proportion of volumetric flow through the first vent opening section may be associated with a battery operation, a higher volumetric flow rate through the second vent section may be associated with a mains power split operation of the portable power tool.
  • the flow control means is designed as externally operable switchover.
  • the externally actuable reversing flap can close the first vent opening section in a first switching position.
  • the flow control means designed as externally operable switchover flap can close the second vent opening section in a second switch position.
  • first ventilation opening section and the second ventilation opening section are associated with different ventilation openings.
  • first vent portion and the second vent portion belong to a same ventilation opening.
  • the first vent opening section and the second vent opening section are arranged substantially perpendicular to each other.
  • the present object is achieved in that the fanless power supply part has an inner and open to the outside ventilation duct.
  • the fanless mains power supply when it is received in a formed for interchangeable receiving the mains power part receiving bay of a power tool, be forcibly cooled by means of a volume flow generated by the cooling fan of the power tool.
  • the inner ventilation duct preferably extends between a front ventilation opening and a return ventilation opening of the mains power part. These can be arranged on opposite end faces of the mains power supply. Particularly preferably, the front ventilation opening is arranged on the mains power part such that when the mains power part is received in the receiving bay, the front ventilation opening is substantially congruent with the second ventilation opening section.
  • the invention includes the recognition that a volumetric flow generated by the cooling fan of a handheld power tool, in particular in the form of sucked cooling air, can be used to cool a mains power part designed for interchangeable reception in a receiving bay with an internal and open ventilation duct according to the invention.
  • a volumetric flow generated by the cooling fan of a handheld power tool in particular in the form of sucked cooling air
  • a mains power part designed for interchangeable reception in a receiving bay with an internal and open ventilation duct according to the invention.
  • the fanless mains power supply part has a closure element which is designed to effect at least partial closure of a first ventilation opening section arranged outside the receiving bay of the handheld power tool when the fanless mains power supply is accommodated in the receiving bay. In this way, an increased proportion of the volume flow generated by the cooling fan can be passed through the second vent section and thus used for cooling.
  • the closure element may be formed as a cantilevered sealing plate which covers the first vent opening portion of the machine tool. In this way, a particularly simple and robust closure element can be provided.
  • the locking element formed as a projecting sealing plate may have a rubber seal, which is arranged to surround and / or seal the first vent portion when the fanless power supply is received in the receptacle bay.
  • the closure element may be a push element, which is designed to switch a provided in the hand tool externally operable switching flap from a second to a first switching position.
  • a second, arranged within the receiving bay of the power tool vent section can be opened to the inner ventilation duct of the fan-less mains power supply, so that the fanless mains power supply via the second vent section is zwangssühlbar.
  • the closure element may be formed, for example, as a push rod or push bar.
  • the pusher element is arranged and designed such that it engages in the housing of the power tool when the fanless mains power supply is received in the receiving bay.
  • the fanless mains power supply can be designed for tool-less interchangeable recording in a receiving bay of a power tool.
  • the present object is achieved by a tooling system having a prescribed hand tooling machine and a fanless power supply portion as described above.
  • the tool system further comprises an accumulator, which is designed for interchangeable recording in a receiving bay of a hand tool.
  • Fig. 1 shows a prior art accumulator 200 having a closed surface.
  • the accumulator 200 is designed for tool-less replaceable recording in a receiving bay, not shown, in the present case has been dispensed with a representation of fasteners.
  • a fanless power supply part 300 is in Fig. 2 shown in perspective and has an inner ventilation duct 310, via which the fanless power supply part 300 is forcibly cooled. How out Fig. 2 As can be seen, the inner ventilation channel 310 extends between a front ventilation opening 311 and a return ventilation opening 312, which are arranged on opposite end sides of the mains power part 300. In the intended use of the fanless power supply part 300, a sucked via a cooling fan, not shown, flow through the return vent 312 in the inner ventilation duct 310 to from the front vent 311, which is arranged on the front side of the fanless power supply part 300 and for contact with a second vent section a power tool, not shown, are determined out of the fanless power supply part 300 out.
  • a tool system 500 in Fig. 3 has a hand tool 100, in this case a hammer drill.
  • the hand tool 100 has a tool housing 90, which has a receptacle 80 designed for interchangeable reception of a rechargeable battery 200.
  • the handheld power tool 100 has an electric drive motor 70 with a cooling fan 60.
  • a first ventilation opening section 50 is arranged outside of the receiving bay 80.
  • a second vent opening portion 40 is disposed on the tool housing 90 so that the closed surface accumulator 200 accommodated in the receptacle bay 80 closes the second vent opening portion 40.
  • the first ventilation opening section 50 and the second ventilation opening section 40 are associated with mutually different ventilation openings, which are arranged perpendicular to one another on the tool housing 90.
  • a volume flow V drawn in by the cooling fan 60 only flows through the first ventilation opening section 50, since the second ventilation opening section 40 is closed by the exchangeable closed-cell accumulator 200 received in the receiving bay 80.
  • forced refrigeration of the accumulator 200 already results from the closed second vent opening section 40 through portions of the volumetric flow V flowing along the second Ventilation opening portion 40 past the accumulator 200, however, the accumulator 200 does not flow through.
  • An inventive tool system 500 in Fig. 4 has a hand tool 100, with respect to Fig. 3 Hand tool 100 described matches.
  • a fanless power supply part 300 according to the invention is shown, which is already in the vicinity of a receiving bay 80, but not yet completely absorbed in selbiger.
  • the fanless power supply 300 of the Fig. 8 has a locking element designed as a projecting sealing plate 320, which is intended to cover the first vent opening section 50 of the machine tool 100.
  • the inner ventilation duct 310 extends between the front ventilation opening 311 and the return opening 312 of the fanless mains power part 300 Fig. 4
  • the front ventilation opening 311 of the power supply part 300 is disposed on the power supply part 300 such that when the power supply part 300 is accommodated in the accommodation bay 80, the front ventilation opening 311 is congruent with the second ventilation opening part 40.
  • Fig. 5 shows the tooling system 500 Fig. 4 wherein the fanless power supply part 300 is now completely received in the receiving bay 80.
  • the shutter member of the fanless power supply part 300 formed as a cantilevered sealing plate 320 now completely covers the first vent opening portion 50 of the tool housing 90, so that a volume flow V generated by the cooling fan 60 operated by the electric drive motor 70 can not pass through the first vent opening portion 50 , Rather, the volume flow V flows completely through the second vent section 40, wherein an intake via the return vent 312 of the power supply part 300 takes place.
  • the sucked volume flow flows through the inner ventilation duct 310 of the mains power part 300 in order to cool it.
  • the volume flow V flows through the second vent opening portion 40 in the tool housing 90 of the power tool to simultaneously be used for cooling the electric drive motor 70.
  • the further course of the volume flow V is not shown for reasons of simplicity.
  • a further ventilation opening is provided on the tool housing 90 in the upper region of the drill chuck, through which the volume flow V can escape from the housing.
  • Fig. 6 shows another embodiment of a tool system according to the invention 500.
  • the hand tool 100 has a designed as externally operable switchover valve 20 flow control means.
  • the flow control means embodied as externally actuable changeover flap 20 is designed to distribute a volume flow V generated by the cooling fan 60 between the first 50 and second vent section 40 as a function of a mains current part 300 to be accommodated in the receiving bay 80.
  • the second vent opening section 40 is substantially fully closed.
  • the fanless mains power supply part 300 has a closure element which is designed as a thrust element 330 and which is designed to effect a closure of the first ventilation opening section 50 arranged outside the receiving bay 80 of the handheld power tool 100 when the fanless mains power part 300 is received in the receiving bay 80 , Since the fanless mains power supply 300 in Fig. 6 is not received in the receiving bay 80, the first vent portion 50 is not closed.
  • the thrust element 330 of the fanless power supply part 300 is configured to engage in the tool housing 90 during insertion of the fanless power supply part 300 into the receiving bay 80 through the second vent opening section 40 and thus to move the externally actuable changeover door 20 out of its shown second switching position 20N.
  • Fig. 7 It is now shown how the pusher element 330 acts on the externally actuable changeover flap 20. By moving further in the direction of the arrow, the externally actuable change-over flap 20 is folded in the direction of the first vent opening section 50 in order, as shown in FIG Fig. 8 shown to finally close.
  • Fig. 8 the fanless power supply part 300 is now completely received in the receiving bay 80.
  • the closure element designed as a thrust element 330 has completely switched over the externally actuable changeover flap 20 into a first switching position 20A, so that the first vent opening section 50 is completely closed and the second vent opening section 40 is completely opened.
  • a volume flow V drawn in through the cooling fan 60 can now flow through the return vent 312 of the mains current part 300 into the inner ventilation duct 310 of the fanless mains current part 300 in order to cool it.
  • the volume flow V flows through the front ventilation opening 311 and the second ventilation opening section 40 aligned therewith into the tool housing 90.
  • the fanless mains power supply 300 in the receiving bay 80 is arranged, designed as a thrust element 330 closure element holds the externally operable switchover flap 20 in the in Fig. 8 shown first switching position 20A fixed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Power Tools In General (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Battery Mounting, Suspending (AREA)
EP14195557.5A 2014-12-01 2014-12-01 Machine-outil portative, partie de réseau sans ventilateur et système d'outil Withdrawn EP3028822A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP14195557.5A EP3028822A1 (fr) 2014-12-01 2014-12-01 Machine-outil portative, partie de réseau sans ventilateur et système d'outil
CN201580056118.9A CN107073695B (zh) 2014-12-01 2015-11-30 手持式工具机、无风机的电网电流部件和工具系统
US15/531,977 US10569407B2 (en) 2014-12-01 2015-11-30 Handheld power tool, fanless power supply unit and tool system
PCT/EP2015/078015 WO2016087344A1 (fr) 2014-12-01 2015-11-30 Machine-outil portative, élément de courant secteur sans ventilateur et système d'outil
EP15801837.4A EP3227060B1 (fr) 2014-12-01 2015-11-30 Machine-outil portative, partie de réseau sans ventilateur et système d'outil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14195557.5A EP3028822A1 (fr) 2014-12-01 2014-12-01 Machine-outil portative, partie de réseau sans ventilateur et système d'outil

Publications (1)

Publication Number Publication Date
EP3028822A1 true EP3028822A1 (fr) 2016-06-08

Family

ID=52000728

Family Applications (2)

Application Number Title Priority Date Filing Date
EP14195557.5A Withdrawn EP3028822A1 (fr) 2014-12-01 2014-12-01 Machine-outil portative, partie de réseau sans ventilateur et système d'outil
EP15801837.4A Active EP3227060B1 (fr) 2014-12-01 2015-11-30 Machine-outil portative, partie de réseau sans ventilateur et système d'outil

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP15801837.4A Active EP3227060B1 (fr) 2014-12-01 2015-11-30 Machine-outil portative, partie de réseau sans ventilateur et système d'outil

Country Status (4)

Country Link
US (1) US10569407B2 (fr)
EP (2) EP3028822A1 (fr)
CN (1) CN107073695B (fr)
WO (1) WO2016087344A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3028823A1 (fr) 2014-12-01 2016-06-08 HILTI Aktiengesellschaft Machine-outil portative, accumulateur sans ventilateur
US10223821B2 (en) 2017-04-25 2019-03-05 Beyond Imagination Inc. Multi-user and multi-surrogate virtual encounters
CN109290818A (zh) * 2018-11-21 2019-02-01 洪海洋 一种高速直驱机床第四轴
EP3825065B8 (fr) * 2019-11-19 2024-05-29 Andreas Stihl AG & Co. KG Appareil de travail fonctionnant sur accumulateur doté d'un conduit d'air de refroidissement
EP3875225A1 (fr) * 2020-03-05 2021-09-08 Hilti Aktiengesellschaft Dispositif d'alimentation électrique pour une machine-outil

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0940864A2 (fr) * 1998-03-05 1999-09-08 Black & Decker Inc. Système de refroidissement pour paquet de batteries
US20050202310A1 (en) * 2003-10-03 2005-09-15 Yahnker Christopher R. Thermal management systems for battery packs
DE102007039828B3 (de) * 2007-08-23 2008-11-20 Robert Bosch Gmbh Elektrohandwerkzeugmaschine mit einem Lüfter und einem Akku
DE102008060703A1 (de) * 2007-12-07 2009-06-10 Johnson Electric S.A., La Chaux-De-Fonds Angetriebenes Werkzeug
DE102009015422A1 (de) * 2008-03-28 2009-10-01 Johnson Electric S.A., La Chaux-De-Fonds Angetriebenes Werkzeug

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4691981B2 (ja) * 2004-12-14 2011-06-01 パナソニック株式会社 電池パック
DE102010030059A1 (de) * 2010-06-15 2011-12-15 Hilti Aktiengesellschaft Handgeführtes Eintreibgerät

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0940864A2 (fr) * 1998-03-05 1999-09-08 Black & Decker Inc. Système de refroidissement pour paquet de batteries
US20050202310A1 (en) * 2003-10-03 2005-09-15 Yahnker Christopher R. Thermal management systems for battery packs
DE102007039828B3 (de) * 2007-08-23 2008-11-20 Robert Bosch Gmbh Elektrohandwerkzeugmaschine mit einem Lüfter und einem Akku
DE102008060703A1 (de) * 2007-12-07 2009-06-10 Johnson Electric S.A., La Chaux-De-Fonds Angetriebenes Werkzeug
DE102009015422A1 (de) * 2008-03-28 2009-10-01 Johnson Electric S.A., La Chaux-De-Fonds Angetriebenes Werkzeug

Also Published As

Publication number Publication date
CN107073695B (zh) 2020-03-17
EP3227060A1 (fr) 2017-10-11
US10569407B2 (en) 2020-02-25
WO2016087344A1 (fr) 2016-06-09
US20170334055A1 (en) 2017-11-23
CN107073695A (zh) 2017-08-18
EP3227060B1 (fr) 2018-07-11

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