Movatterモバイル変換


[0]ホーム

URL:


DE3147501A1 - Motor housing for electrical tools - Google Patents

Motor housing for electrical tools

Info

Publication number
DE3147501A1
DE3147501A1DE19813147501DE3147501ADE3147501A1DE 3147501 A1DE3147501 A1DE 3147501A1DE 19813147501DE19813147501DE 19813147501DE 3147501 ADE3147501 ADE 3147501ADE 3147501 A1DE3147501 A1DE 3147501A1
Authority
DE
Germany
Prior art keywords
housing
motor housing
motor
armature
spaces
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.)
Granted
Application number
DE19813147501
Other languages
German (de)
Other versions
DE3147501C2 (en
Inventor
Wilhelm Ing.(Grad.) 7057 Leutenbach Geis
Günter 7151 Auenwald Huber
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs 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 Licentia Patent Verwaltungs GmbHfiledCriticalLicentia Patent Verwaltungs GmbH
Priority to DE19813147501priorityCriticalpatent/DE3147501A1/en
Publication of DE3147501A1publicationCriticalpatent/DE3147501A1/en
Application grantedgrantedCritical
Publication of DE3147501C2publicationCriticalpatent/DE3147501C2/de
Grantedlegal-statusCriticalCurrent

Links

Classifications

Landscapes

Abstract

A motor housing for electrical tools of conventional construction is intended to be used to reduce the fan noise and the air flow noise. This is achieved according to the invention in that the cooling air flow sucked in by the fan of the drive motor through air inlet slots in the motor housing, via the commutator, the winding overhang on the commutator side of the armature, and intermediate spaces between the field and armature and the winding overhang on the output drive side of the armature is conducted into the free spaces in the housing, in the opposite direction to its original flow direction, by means of deflection walls provided in the area surrounding the fan, and, after being deflected once again by barriers fitted in the end region of the free spaces in the housing, is guided to the exterior via air outlet openings located in the motor housing. <IMAGE>

Description

Translated fromGerman

Motorgehäuse für Elektrowerkzeuge Motor housings for power tools

Das bei mittels eines Universalmotors angetriebenen Elektrowerkzeugenim wesentlichen durch die Motorabmessungen und die Bürstenlänge einschließlich desKollektordurchmessers und gegebenenfalls durch ein Ubersetzungsgetriebe bestimmteBauvolumen beinhaltet in der Regel ober- und unterhalb des Motors Freiräume, diemeist gar nicht oder allenfalls zur Aufnahme von Bauelementen für Entstör- oderRegelzwecke genutzt werden.This is the case with power tools driven by a universal motoressentially by the motor dimensions and the brush length including theCollector diameter and possibly determined by a transmission gearConstruction volume usually includes free spaces above and below the enginemostly not at all or at most to accommodate components for interference suppression orControl purposes are used.

Der vorliegenden Erfindung liegt die Aufgabe-zugrunde, diese Freiräumezur Verminderung des Ventilatorgeräusches sowie des iuftströmungsgeräusches unddamit des abgestrahlten Gesamtgeräusches nutzbar zu machen.The object of the present invention is to provide these free spacesto reduce fan noise and air flow noise andthus making the emitted overall noise usable.

Zur Lösung dieser Aufgabe sieht die Erfindung vor, daß der von Ventilatordes Antriebsmotors durch Lufteinlaßschlitze im Motorengehäuse über den Kollektor,den kollektorseitigen Wickelkopf des Ankers, die Zwischenräume zwischen Feld undAnker und den abtriebseitigen Wickelkopf des Ankers angesaugte Kühlluftstrom durchim Umgebungsbereich des Ventilators vorgesehene Umlenkwände entgegen seiner ursprünglichenStrömungsrichtung in die Gehäusefreiräume geleitet wird und nach nochmaliger Umlenkungdurch in Endbereich der Gehäusefreiräume angebrachte Barrieren über im Notorgehäusebefindliche Luftaustrittsöffnungen nach außen geführt wird.To solve this problem, the invention provides that the fanthe drive motor through air inlet slots in the motor housing via the collector,the collector-side winding head of the armature, the gaps between field andArmature and the output-side winding head of the armature sucked in cooling air flowin the vicinity of the fan provided deflection walls opposite to its originalDirection of flow is directed into the housing spaces and after repeated deflectionby means of barriers in the end area of the housing clearances over the notor housinglocated air outlet openings is led to the outside.

Ein Ausführungsbeispiel der Erfindung wird im nachstehenden anhandder Zeichnung erläutert.An embodiment of the invention is based on the followingthe drawing explained.

Es zeigen: Fig. 1 einen Iangsschnitt durch das Motorgehäuse einerBohrmaschine, Fig. 2 eine Ansicht längs des Schnittes A-B durch Fig. 1.1 shows a longitudinal section through the motor housing of aDrilling machine, FIG. 2 a view along the section A-B through FIG. 1.

Beim Ausführungsbeispiel gemäß den Figuren 1 und 2 sind in den mit1 und 2 bezeichneten Freiräumen des Notorengehäuses 3 weder Bauelemente für dieFunkentstörung noch Bausteine für die Regelung der Drehzahl des Antriebsmotors 4,5untergebrasht; flr daß diese Räume vollständig für eine im Hinblick auf eine Veminderung des tuftströmungsgeräuschs vorteilhafte Bührung der Kühlluft nutzbar sind.Die besagten Entstor- und Regelbausteine sind allesamt in der Handgrirfschale 6des Gehäuses 3 angeordnet.In the embodiment according to Figures 1 and 2 are in the with1 and 2 designated spaces of the Notorengehäuses 3 neither components for theRadio interference suppression modules for regulating the speed of the drive motor 4.5crashed down; for that these spaces are completely for one in terms of a vereduction of the tuft flow noise advantageous guidance of the cooling air can be used.The aforementioned anti-interference and rule modules are all in the handle shell 6of the housing 3 arranged.

Durch im Bürstenbereich des Motorgehäuses 3 angebrachte Lufteinlaßschlitze7 gelangt die vom auf der Welle 8 des Ankers 4 angeordneten Ventilator 9 angesaugteKühlluft über den Kollektor 10, den kollektorseitigen Wickelkopf 11 des Ankers 4,die Zwischenräume 12 und 13 zwischen Anker 4 und Stator 5 und den getriebeseitigenWickelkopf 14 zum abtriebseitigen Lagerschild 15 und wird von diesem entsprechendgeformten Lagerschild in die Freiräume 1 und 2 umgelenkt.Through air inlet slots made in the brush area of the motor housing 37 is taken in by the fan 9 arranged on the shaft 8 of the armature 4Cooling air over the collector 10, the collector-side end winding 11 of the armature 4,the spaces 12 and 13 between armature 4 and stator 5 and the transmission-sideEnd winding 14 to the output end shield 15 and is accordinglyshaped bearing shield deflected into the spaces 1 and 2.

Die Kühl luft durchströmt somit infolge ihrer Umlenkung die Freiräume1 und 2 in der der ursprünglichen Ansaugrichtung entgegengesetzten Richtung biszu dem gekrümmt ausgebildeten Innenteil 16 des Motorgehäuses und tritt durch dieUmleitwirkung dieser Barriere durch die Luftaustrittsöffnungen 17 aus den Motorgehäuse3 aus (siehe Strömungspfeile in Fig. 1). Die Luftaustrittsöffnungen 17 sind dabeiso angeordnet, daß die abströmende Luft die Bedienungsperson nicht stört.The cooling air thus flows through the free spaces as a result of its deflection1 and 2 in the direction opposite to the original suction direction toto the curved inner part 16 of the motor housing and passes through theDiverting effect of this barrier through the air outlet openings 17 from the motor housing3 (see flow arrows in Fig. 1). The air outlet openings 17 are includedarranged so that the outflowing air does not disturb the operator.

Im Vergleich mit der bei Elektrowerkzeugen bisher üblichen Luftführung,derart, daß die Kühlluft unmittelbar im Ventilatorbereich nach außen befördert wird,zeitigt dle erfindungsgemäße Luftführung durch die Schallkammern (Schallberuhigungsräume)hindurch den erheblichen Vorteil, daß eine beträchtliche Reduzierung des Geräuschpegelserzielt wird. Dieser Vorteil ist darauf zurückzuführen, daß die Kühlluft durch derenUmweg durch die Schallkammern abgebremst und beruhigt wird, wobei ein Teil der Schallenergiein Wärme umgesetzt wird.In comparison with the air ducting previously used in power tools,in such a way that the cooling air is conveyed to the outside directly in the fan area,produces the air duct according to the invention through the sound chambers (sound calming rooms)through the considerable advantage that a considerable reduction in the noise levelis achieved. This advantage is due to the fact that the cooling air through theirDetour through the sound chambers is slowed down and calmed down, with part of the sound energyis converted into heat.

In weiterer Ausgestaltung der Erfindung werden, wie aus Fig. 2 ersichtlichist, die Räume zwischen dem Stator 5 des Antriebsmotors und dem Motorgehäuse 3 mitschalldämmendem und/oder schalldämpfendem Material 18 ausgekleidet. Gegebenenfallskönnen auch die Begrenzungswandungen der Freiräume 1 und 2 mit einem schalldämpfendenBelag versehen sein.In a further embodiment of the invention, as can be seen from FIGis, the spaces between the stator 5 of the drive motor and the motor housing 3 withsound-absorbing and / or sound-absorbing material 18 lined. Possiblycan also the boundary walls of the free spaces 1 and 2 with a sound-absorbingBe provided with a covering.

LeerseiteBlank page

Claims (3)

Translated fromGerman
Pat entansprüche für Elektrowerkzeuge mit zwischen dem als Universalmotorausgebildeten Antriebsmotor und der Gehäuseaußenwandung vorhandenen Freiräumen,dadurch gekennzeichnet, daß der vom Ventilator fdes Antriebsmotors durch tufteinlaßschlitzeim Motorengehäuse über den Kollektor, den kollektorseitigen Wickelkopf des Ankersdie Zwischenräume zwischen Feld und Anker und den abtriebseitigen Wickelkopf desAnkers angesaugte Kühlluftstrom durch im Umgebungsbereich des -vrentilators vorgeseheneUmlenkwände entgegen seiner ursprünglichen Strömungsrichtung in die Gehäusefreiräumegeleitet wird und nach nochmaliger Umlenkung durch im Endbereich der Gehäusefreiräumeangebrachte Barrieren über im Motorgehause befindliche DuftaustrittsöfInungen nachaußen geführt wird. Patent claims for power tools with between the universal motortrained drive motor and the housing outer wall existing free spaces,characterized in that the fan f of the drive motor through tuft inlet slotsin the motor housing via the collector, the collector-side winding head of the armaturethe gaps between the field and armature and the end winding of theArmature sucked in cooling air flow through provided in the area surrounding the ventilatorDeflection walls against its original flow direction in the housing spacesis directed and after another redirection through in the end area of the housing spacesinstalled barriers via fragrance outlet openings in the engine housingis guided outside. 2. Motorgehäuse nach Anspruch 1, dadurch gekennzeichnet, daß dieventilatorseitigen Umlenkwände durch das abtriebsseitige Lagerschild und die imEndbereich der Freiräume befindlichen Barrieren durch einen freiraumseitig gekrümmtausgebildeten Innenteil des Motorgehäuses verkörpert sind. 2. Motor housing according to claim 1, characterized in that thebaffles on the fan side through the end shield on the output side and the imBarriers located at the end of the free spaces are curved by a free space sidetrained inner part of the motor housing are embodied. 3. Motorgehäuse nach den Ansprüchen 1 und 2, dadurch gekennzeichnet,daß die Räume zwischen dem Stator des Antriebsmotors und dem Motorgehäuse mit schalidämmendemund/oder schalldämpfendem Material ausgekleidet sind. 3. Motor housing according to claims 1 and 2, characterized in thatthat the spaces between the stator of the drive motor and the motor housing with sound-absorbingand / or sound-absorbing material are lined.
DE198131475011981-12-011981-12-01Motor housing for electrical toolsGrantedDE3147501A1 (en)

Priority Applications (1)

Application NumberPriority DateFiling DateTitle
DE19813147501DE3147501A1 (en)1981-12-011981-12-01Motor housing for electrical tools

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
DE19813147501DE3147501A1 (en)1981-12-011981-12-01Motor housing for electrical tools

Publications (2)

Publication NumberPublication Date
DE3147501A1true DE3147501A1 (en)1983-06-09
DE3147501C2 DE3147501C2 (en)1988-01-21

Family

ID=6147615

Family Applications (1)

Application NumberTitlePriority DateFiling Date
DE19813147501GrantedDE3147501A1 (en)1981-12-011981-12-01Motor housing for electrical tools

Country Status (1)

CountryLink
DE (1)DE3147501A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
DE3340799A1 (en)*1983-11-111985-05-23Licentia Patent-Verwaltungs-Gmbh, 6000 FrankfurtElectric tool
EP0261295A1 (en)*1986-08-221988-03-30S.A. Acec TransportSelf-cooled electrical motor
WO1988009077A1 (en)*1987-05-081988-11-17Firma Karl LutzElectric motor, in particular a drive motor for a drum pump or submersible pump
EP0484305B1 (en)*1990-10-311996-05-22ITT INDUSTRIES, INC. (a Delaware corporation)High speed whirlpool pump
WO2005050819A3 (en)*2003-11-172005-09-15Emerson Electric CoLow noise ventilation system for electric motor
US8292001B2 (en)2007-11-212012-10-23Black & Decker Inc.Multi-mode drill with an electronic switching arrangement
US9391491B2 (en)2007-04-272016-07-12Hitachi Koki Co., Ltd.Power tool
JP2016159381A (en)*2015-02-272016-09-05日立工機株式会社 Electric working machine
WO2019145091A1 (en)*2018-01-262019-08-01Bombardier Transportation GmbhAn electric machine
EP3534504A1 (en)*2018-03-022019-09-04Black & Decker Inc.Motor having an external heat sink for a power tool

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US7717191B2 (en)2007-11-212010-05-18Black & Decker Inc.Multi-mode hammer drill with shift lock
US7735575B2 (en)2007-11-212010-06-15Black & Decker Inc.Hammer drill with hard hammer support structure
US7762349B2 (en)2007-11-212010-07-27Black & Decker Inc.Multi-speed drill and transmission with low gear only clutch
US7770660B2 (en)2007-11-212010-08-10Black & Decker Inc.Mid-handle drill construction and assembly process
US7854274B2 (en)2007-11-212010-12-21Black & Decker Inc.Multi-mode drill and transmission sub-assembly including a gear case cover supporting biasing
US7717192B2 (en)2007-11-212010-05-18Black & Decker Inc.Multi-mode drill with mode collar

Citations (6)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
FR869298A (en)*1940-09-271942-01-28 Device for vacuum cleaning
GB676305A (en)*1949-07-081952-07-23Rollnick & Gordon LtdImprovements in electric motors for vacuum cleaning and like machines
DE1030443B (en)*1956-05-071958-05-22Wilhelm Bender Electric motor with dust filter device
DE1173981B (en)*1960-12-301964-07-16Nikolaus Laing Sound insulation of a small device driven by a ventilated electric motor
DE1628835A1 (en)*1966-04-021971-06-16Altenburg Elektrowaerme Device for noise reduction on devices driven by electric motors
DE1613396A1 (en)*1967-06-151971-12-30Siemens Ag Noise-absorbing fastening of the stator core for electrical machines of medium or low power

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
FR869298A (en)*1940-09-271942-01-28 Device for vacuum cleaning
GB676305A (en)*1949-07-081952-07-23Rollnick & Gordon LtdImprovements in electric motors for vacuum cleaning and like machines
DE1030443B (en)*1956-05-071958-05-22Wilhelm Bender Electric motor with dust filter device
DE1173981B (en)*1960-12-301964-07-16Nikolaus Laing Sound insulation of a small device driven by a ventilated electric motor
DE1628835A1 (en)*1966-04-021971-06-16Altenburg Elektrowaerme Device for noise reduction on devices driven by electric motors
DE1613396A1 (en)*1967-06-151971-12-30Siemens Ag Noise-absorbing fastening of the stator core for electrical machines of medium or low power

Cited By (15)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
DE3340799A1 (en)*1983-11-111985-05-23Licentia Patent-Verwaltungs-Gmbh, 6000 FrankfurtElectric tool
EP0261295A1 (en)*1986-08-221988-03-30S.A. Acec TransportSelf-cooled electrical motor
WO1988009077A1 (en)*1987-05-081988-11-17Firma Karl LutzElectric motor, in particular a drive motor for a drum pump or submersible pump
EP0484305B1 (en)*1990-10-311996-05-22ITT INDUSTRIES, INC. (a Delaware corporation)High speed whirlpool pump
WO2005050819A3 (en)*2003-11-172005-09-15Emerson Electric CoLow noise ventilation system for electric motor
US7157818B2 (en)2003-11-172007-01-02Emerson Electric Co.Low noise ventilation system for electric motor
US9391491B2 (en)2007-04-272016-07-12Hitachi Koki Co., Ltd.Power tool
US8292001B2 (en)2007-11-212012-10-23Black & Decker Inc.Multi-mode drill with an electronic switching arrangement
JP2016159381A (en)*2015-02-272016-09-05日立工機株式会社 Electric working machine
WO2019145091A1 (en)*2018-01-262019-08-01Bombardier Transportation GmbhAn electric machine
CN111630756A (en)*2018-01-262020-09-04勃姆巴迪尔运输有限公司 motor
US11505218B2 (en)2018-01-262022-11-22Bombardier Transportation GmbhCooling of an electric motor
CN111630756B (en)*2018-01-262024-01-30勃姆巴迪尔运输有限公司 Motor
EP3534504A1 (en)*2018-03-022019-09-04Black & Decker Inc.Motor having an external heat sink for a power tool
US11139722B2 (en)2018-03-022021-10-05Black & Decker Inc.Motor having an external heat sink for a power tool

Also Published As

Publication numberPublication date
DE3147501C2 (en)1988-01-21

Similar Documents

PublicationPublication DateTitle
DE3147501A1 (en)Motor housing for electrical tools
DE2441045C2 (en) Soundproof housing for machine units with cooler
DE60037496T2 (en) Ventilation device and electric traction traction motor equipped with such a device
DE3942083A1 (en)Hand-held power tool with enhanced motor cooling - has radial and axial fans juxtaposed and keyed to motor armature shaft in space immediately ahead of downstream stator winding heads
DE3340799C2 (en)
DE1003844B (en) Electric drive for ship winches or the like.
DE2743826B2 (en) Electric motor, which is attached with its output-side end to the wall of a machine, in particular a dishwasher
DE2406489B2 (en) Ventilation device to be installed axially on the outside of electrical machines
DE1203013B (en) Projection device with fan for cooling the lamp house and picture stage
DE69921930T2 (en) Fan with cooling duct for the engine
DE69323011T2 (en) Air conditioning, in particular for a motor vehicle
DE2441687A1 (en)Roof mounted building ventilator device - has sub divided air conduction pipe for air input and output which penetrates the roof
DE19546250C2 (en) Vehicle heater with a combustion air blower driven by an electric motor
DE9400454U1 (en) Venting and ventilation system
DE3325344A1 (en) ROOM HEATER FOR SMALL ROOMS
DE8130338U1 (en) FOREIGN VENTILATED ELECTRIC MOTOR DRIVE
DE1288773B (en) Elevator gearbox with external rotor motor
DE2017947C3 (en) fan
DE2435974A1 (en)Rotary frequency converter with forced air cooling - has switching system in separate air-cooled chamber with air baffles
DE1756938B2 (en) ELEVATOR GEAR WITH EXTERNAL RUNNER MOTOR
DE3130265A1 (en)Regenerative heat exchanger arrangement
DE2643767A1 (en)Electric hand tool high speed gear - has shaft section vent channel with check valve at gear chamber inlet
DE425953C (en) Fan with a deflector plate on the outlet side of the impeller
DE2833680A1 (en)Lateral duct compressor or vacuum pump - has cooling fan impeller on shaft between external motor and internal impeller with air guided by cowls
DE2854860A1 (en)Air circulating electric fan - has suction hole and outlet on housing with entry and exit ducts connected to them and connected to motor

Legal Events

DateCodeTitleDescription
8110Request for examination paragraph 44
D2Grant after examination
8363Opposition against the patent
8339Ceased/non-payment of the annual fee

[8]ページ先頭

©2009-2025 Movatter.jp