EP2465647A3 - Hand tool machine with air circulation element - Google Patents

Hand tool machine with air circulation element Download PDF

Info

Publication number
EP2465647A3
EP2465647A3 EP11189463A EP11189463A EP2465647A3 EP 2465647 A3 EP2465647 A3 EP 2465647A3 EP 11189463 A EP11189463 A EP 11189463A EP 11189463 A EP11189463 A EP 11189463A EP 2465647 A3 EP2465647 A3 EP 2465647A3
Authority
EP
European Patent Office
Prior art keywords
housing wall
surface contour
intake means
air
outflow
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Withdrawn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
EP11189463A
Other languages
German (de)
French (fr)
Other versions
EP2465647A2 (en
Inventor
Torsten Luettich
Armin Hoffmann
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
Publication of EP2465647A2 publication Critical patent/EP2465647A2/en
Publication of EP2465647A3 publication Critical patent/EP2465647A3/en
Withdrawn legal-status Critical Current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
    • B25F5/008—Cooling means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Power Tools In General (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Die Erfindung betrifft eine Handwerkzeugmaschine (100), aufweisend eine Gehäusewand (110) und eine Lüftereinrichtung (118) mit einem Luftansaugmittel (114) und einem Luftauslass (116) in der Gehäusewand (110). Erfindungsgemäß ist dabei vorgesehen, dass die Lüftereinrichtung (118) zusätzlich ein Luftführungselement (130) aufweist und ein Abströmraum (141, 142, 143) zwischen der Gehäusewand (110) am Luftauslass (116) einerseits und einer Abströmseite (124) des Luftansaugmittels (114) andererseits sowie seitlich über eine erste Flächenkontur (161) und eine zweite Flächenkontur (162) des Luftführungselementes (130) begrenzt ist. Dabei verlaufen die erste Flächenkontur (161) und die zweite Flächenkontur (162) jeweils von der Gehäusewand (110) zu der Abströmseite (124) des Luftansaugmittels (114) und das Luftführungselement (130) ist derart geformt, dass sich eine Querschnittsfläche (Q) des Abströmraumes (141) quer zu einer Abströmrichtung (127) des Luftansaugmittels (120) in der Abströmrichtung vergrößert.

Figure imgaf001
The invention relates to a handheld power tool (100), comprising a housing wall (110) and a fan device (118) with an air intake means (114) and an air outlet (116) in the housing wall (110). According to the invention, it is provided that the fan device (118) additionally has an air guide element (130) and an outflow space (141, 142, 143) between the housing wall (110) at the air outlet (116) on the one hand and an outflow side (124) of the air intake means (114 ) on the other side and laterally over a first surface contour (161) and a second surface contour (162) of the air guide element (130) is limited. In this case, the first surface contour (161) and the second surface contour (162) each extend from the housing wall (110) to the downstream side (124) of the air intake means (114) and the air guide element (130) is shaped such that a cross-sectional area (Q) of the outflow space (141) transversely to an outflow direction (127) of the air intake means (120) in the outflow direction increases.
Figure imgaf001
EP11189463A 2010-12-20 2011-11-17 Hand tool machine with air circulation element Withdrawn EP2465647A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010063525 2010-12-20

Publications (2)

Publication Number Publication Date
EP2465647A2 EP2465647A2 (en) 2012-06-20
EP2465647A3 true EP2465647A3 (en) 2013-01-16

Family

ID=45350643

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11189463A Withdrawn EP2465647A3 (en) 2010-12-20 2011-11-17 Hand tool machine with air circulation element

Country Status (2)

Country Link
US (1) US20120152504A1 (en)
EP (1) EP2465647A3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130299207A1 (en) * 2012-05-10 2013-11-14 Black & Decker, Inc. Power tool cooling
WO2016121463A1 (en) * 2015-01-30 2016-08-04 日立工機株式会社 Work machine
CN113510664A (en) * 2020-04-10 2021-10-19 苏州宝时得电动工具有限公司 Electric tool

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991011297A1 (en) * 1990-02-02 1991-08-08 Robert Bosch Gmbh Hand machine-tool with radial fan
DE102005062697A1 (en) * 2005-12-28 2007-07-12 Robert Bosch Gmbh Hand-held power tool
DE102006038756A1 (en) * 2006-08-17 2008-02-21 Marquardt Gmbh Power tool e.g. drilling machine, has fixed and/or flexible air channel, which is arranged in housing and directs air flow and/or distributing air flow to cool heat source, where one end of air channel is turned towards fan wheel
EP1911547A2 (en) * 2006-10-13 2008-04-16 Black & Decker, Inc. Angle grinder
EP2191940A1 (en) * 2008-11-28 2010-06-02 AEG Electric Tools GmbH Electrical tool
DE102009001501A1 (en) * 2009-03-12 2010-09-16 Robert Bosch Gmbh Hand tool

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2201867A (en) * 1938-06-24 1940-05-21 Gen Electric Centrifugal fan casing
US2456571A (en) * 1947-09-13 1948-12-14 Singer Mfg Co Portable electric tool
NL7014555A (en) * 1970-10-03 1972-04-05
US3829721A (en) * 1973-07-30 1974-08-13 Black & Decker Mfg Co Air flow baffle construction for electric motor devices
US3824684A (en) * 1973-08-27 1974-07-23 Black & Decker Mfg Co Method of assembling an electric motor device and heat sink
JP3152131B2 (en) * 1995-11-02 2001-04-03 日立工機株式会社 Battery tool
US6043575A (en) * 1999-03-05 2000-03-28 Snap-On Tools Company Power tool with air deflector for venting motor exhaust air
JP4075540B2 (en) * 2002-09-10 2008-04-16 松下電工株式会社 Electric tool
DE10358027A1 (en) 2003-12-11 2005-07-21 Hilti Ag hand tool
USD534645S1 (en) * 2004-11-17 2007-01-02 Matsushita Electric Industrial Co., Ltd. Air guide
US8508084B2 (en) * 2008-06-26 2013-08-13 Techtronic Power Tools Technology Limited Power tool including hybrid electric motor design

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991011297A1 (en) * 1990-02-02 1991-08-08 Robert Bosch Gmbh Hand machine-tool with radial fan
DE102005062697A1 (en) * 2005-12-28 2007-07-12 Robert Bosch Gmbh Hand-held power tool
DE102006038756A1 (en) * 2006-08-17 2008-02-21 Marquardt Gmbh Power tool e.g. drilling machine, has fixed and/or flexible air channel, which is arranged in housing and directs air flow and/or distributing air flow to cool heat source, where one end of air channel is turned towards fan wheel
EP1911547A2 (en) * 2006-10-13 2008-04-16 Black & Decker, Inc. Angle grinder
EP2191940A1 (en) * 2008-11-28 2010-06-02 AEG Electric Tools GmbH Electrical tool
DE102009001501A1 (en) * 2009-03-12 2010-09-16 Robert Bosch Gmbh Hand tool

Also Published As

Publication number Publication date
US20120152504A1 (en) 2012-06-21
EP2465647A2 (en) 2012-06-20

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