EP2585243A1 - Handwerkzeugmaschine - Google Patents

Handwerkzeugmaschine

Info

Publication number
EP2585243A1
EP2585243A1 EP11716271.9A EP11716271A EP2585243A1 EP 2585243 A1 EP2585243 A1 EP 2585243A1 EP 11716271 A EP11716271 A EP 11716271A EP 2585243 A1 EP2585243 A1 EP 2585243A1
Authority
EP
European Patent Office
Prior art keywords
collector
housing
motor housing
air flow
hand 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.)
Withdrawn
Application number
EP11716271.9A
Other languages
German (de)
English (en)
French (fr)
Inventor
Nils Braselmann
Juergen Gairing
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2585243A1 publication Critical patent/EP2585243A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D51/00—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D59/00—Accessories specially designed for sawing machines or sawing devices
    • B23D59/04—Devices for lubricating or cooling straight or strap saw blades
    • 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

Definitions

  • the drive motor is designed as a DC motor with a built-in motor housing fan.
  • the seated on the rotor shaft of the drive motor fan generates a cooling air flow, which is passed for cooling the drive motor axially through the motor housing and discharged via radial outlet openings again from the motor housing.
  • an air outlet opening is arranged, via which the cooling air flow exits from the motor housing.
  • the air outlet opening in the motor housing is connected to an outflow channel, which leads to an air outlet opening in the housing of the handheld power tool.
  • the air outlet opening in the motor housing is enclosed by an annular channel, which extends in the circumferential direction at least partially around the motor housing and which is connected to the outflow channel.
  • annular channel which extends in the circumferential direction at least partially around the motor housing and which is connected to the outflow channel.
  • air outlet openings in the motor housing can be connected to the outflow channel via the annular channel.
  • the outflow channel which connects the air outlet opening in the motor housing with the air outlet opening in the housing of the portable power tool, is guided in the direction of the working field of the hand tool.
  • the air flow in the discharge channel is used in this embodiment as blowing air, which is directed to the work area and blown away chips from the work area.
  • the advantage of this embodiment in addition to the free-blown working area, lies in the short path that the heated engine air has to travel between the air outlet opening in the motor housing and the air outlet opening in the housing of the handheld power tool.
  • first slot-shaped air inflow openings 18 are introduced, via the outside of a first cooling air flow 13a in the housing interior for cooling the drive motor 3 is performed.
  • cooling air is sucked from the outside through the inlet openings 18 during rotation of the fan wheel 12 and passed as a cooling air flow 13a in the interior of the motor housing 10, the axially guided to the air outlet opening 1 1 through the motor housing.
  • a second cooling air flow 13b is guided from the air inflow openings 18 axially along the outside of the motor housing 10 to the front side facing the transmission 4, at which the second cooling air flow 13b is directed axially into the interior of the motor housing 10 until reaching the impeller 12.
  • the first cooling air flow 13a cools the drive motor 3
  • the second cooling air flow 13b first cools the drive motor 3 and then, with the reaching of the

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)
EP11716271.9A 2010-06-23 2011-04-27 Handwerkzeugmaschine Withdrawn EP2585243A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010030376 DE102010030376A1 (de) 2010-06-23 2010-06-23 Handwerkzeugmaschine
PCT/EP2011/056632 WO2011160871A1 (de) 2010-06-23 2011-04-27 Handwerkzeugmaschine

Publications (1)

Publication Number Publication Date
EP2585243A1 true EP2585243A1 (de) 2013-05-01

Family

ID=44350779

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11716271.9A Withdrawn EP2585243A1 (de) 2010-06-23 2011-04-27 Handwerkzeugmaschine

Country Status (5)

Country Link
EP (1) EP2585243A1 (zh)
CN (1) CN102947036A (zh)
DE (1) DE102010030376A1 (zh)
RU (1) RU2013102749A (zh)
WO (1) WO2011160871A1 (zh)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10369672B2 (en) 2012-10-19 2019-08-06 Husqvarna Ab Outdoor power device internal cooling system
JP6127840B2 (ja) * 2013-09-02 2017-05-17 日立工機株式会社 電動工具
JP6557207B2 (ja) * 2016-12-23 2019-08-07 本田技研工業株式会社 バッテリパック
CN108262719A (zh) * 2016-12-30 2018-07-10 苏州宝时得电动工具有限公司 动力工具及其吹尘部件
EP3489481B1 (de) * 2017-11-23 2020-05-13 Andreas Stihl AG & Co. KG Handgeführtes arbeitsgerät
DE102018206874A1 (de) * 2018-05-04 2019-11-07 Robert Bosch Gmbh Stichsägengehäuse
CN115138895B (zh) * 2022-09-06 2022-11-08 烟台汇金精密机械有限公司 一种切割机

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2704941A (en) * 1952-04-03 1955-03-29 Black & Decker Mfg Co Power driven reciprocating tool
US2866485A (en) * 1958-03-19 1958-12-30 Anton Nicholas Power tools
US4961016A (en) * 1989-08-09 1990-10-02 General Motors Corporation Dual-face cooling fan for a dynamoelectric machine
DE59600774D1 (de) * 1996-01-08 1998-12-10 Kress Elektrik Gmbh & Co Handwerkzeug mit Anordnung zum Kühlen
JP4075540B2 (ja) * 2002-09-10 2008-04-16 松下電工株式会社 電動工具
DE10358027A1 (de) * 2003-12-11 2005-07-21 Hilti Ag Handwerkzeug
JP4557555B2 (ja) * 2004-01-08 2010-10-06 株式会社マキタ 電動工具
DE102005062697A1 (de) * 2005-12-28 2007-07-12 Robert Bosch Gmbh Handgeführtes Elektrowerkzeug
DE102006041398A1 (de) * 2006-09-04 2008-03-13 Robert Bosch Gmbh Handwerkzeugmaschine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011160871A1 *

Also Published As

Publication number Publication date
WO2011160871A1 (de) 2011-12-29
CN102947036A (zh) 2013-02-27
RU2013102749A (ru) 2014-07-27
DE102010030376A1 (de) 2011-12-29

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