DE20021796U1 - Electric motor, in particular external rotor motor, and blower with such an electric motor - Google Patents

Electric motor, in particular external rotor motor, and blower with such an electric motor

Info

Publication number
DE20021796U1
DE20021796U1 DE20021796U DE20021796U DE20021796U1 DE 20021796 U1 DE20021796 U1 DE 20021796U1 DE 20021796 U DE20021796 U DE 20021796U DE 20021796 U DE20021796 U DE 20021796U DE 20021796 U1 DE20021796 U1 DE 20021796U1
Authority
DE
Germany
Prior art keywords
electric motor
stator
motor according
bearing tube
blower
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.)
Expired - Lifetime
Application number
DE20021796U
Other languages
German (de)
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.)
Ebm Papst Mulfingen GmbH and Co KG
Original Assignee
Ebm Werke GmbH and Co KG
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 Ebm Werke GmbH and Co KG filed Critical Ebm Werke GmbH and Co KG
Priority to DE20021796U priority Critical patent/DE20021796U1/en
Publication of DE20021796U1 publication Critical patent/DE20021796U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
    • H02K5/1735—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at only one end of the rotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/40—Structural association with grounding devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H02K5/136—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas explosion-proof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans

Landscapes

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

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (16)

1. Elektromotor (3), insbesondere Außenläufermotor, vorzugsweise zur Verwendung zum Antrieb eines, insbesondere ein aus Kunststoff bestehendes Lüfterrad aufweisenden Gasgebläses, mit einem auf einer elektrisch leitfähigen Welle (14) sitzenden Rotor (5), mit einem Stator (4), der ein Statorblechpaket (6) und ein aus elektrisch isolierendem Material bestehendes Lagerrohr (9) mit Lagern (12, 13) für die Welle (14) aufweist und der, mittels einer Isolation (8), insbesondere aufgrund einer Umspritzung des Statorblechpaketes (6), von der Welle (14) und dem Rotor (5) elektrisch isoliert ist, wobei die Welle (14) über mindestens ein Lager (12) und mindestens ein, das Lager (12) statorseitig kon­ taktierendes elektrisch leitfähiges Verbindungsteil mit einem Schutzleiter (16) in Verbindung steht, gekennzeichnet durch ein die Isolation (8) des Stators (4) durchdringendes, den Stator (4) mit dem Schutzleiter (16) verbindendes Leiter­ stück (17).1. Electric motor ( 3 ), in particular external rotor motor, preferably for use to drive a gas blower, in particular a fan wheel consisting of plastic, with a rotor ( 5 ) seated on an electrically conductive shaft ( 14 ), with a stator ( 4 ) which has a stator laminated core ( 6 ) and a bearing tube ( 9 ) made of electrically insulating material with bearings ( 12 , 13 ) for the shaft ( 14 ) and which, by means of insulation ( 8 ), in particular due to an extrusion coating of the stator laminated core ( 6 ), is electrically insulated from the shaft ( 14 ) and the rotor ( 5 ), the shaft ( 14 ) having at least one bearing ( 12 ) and at least one electrically conductive connecting part with a protective conductor ( 16 ) contacting the bearing ( 12 ) on the stator side. is connected, characterized by an insulation ( 8 ) of the stator ( 4 ) penetrating, the stator ( 4 ) with the protective conductor ( 16 ) connecting conductor piece ( 17 ). 2. Elektromotor nach Anspruch 1, dadurch gekennzeichnet, daß das Leiterstück (17) das Statorblechpaket (6) elektrisch kontaktiert.2. Electric motor according to claim 1, characterized in that the conductor piece ( 17 ) electrically contacts the stator core ( 6 ). 3. Elektromotor nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Leiterstück (17) durch das Verbindungsteil gebildet ist.3. Electric motor according to claim 1 or 2, characterized in that the conductor piece ( 17 ) is formed by the connecting part. 4. Elektromotor nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Leiterstück(17)eine ringförmige, auf die Stirnseite des Lagerrohres (9) aufsetzbare Federscheibe ist.4. Electric motor according to one of claims 1 to 3, characterized in that the conductor piece ( 17 ) is an annular, on the end face of the bearing tube ( 9 ) attachable spring washer. 5. Elektromotor nach Anspruch 4, dadurch gekennzeichnet, daß am Innenumfang der Federscheibe abgewinkelte Federarme (17a) angeordnet sind, die in montiertem Zustand derart auf einen Außenring (12a) des Lagers (12) drücken, daß sie eine elektrisch leitende Verbindung herstellen. .5. Electric motor according to claim 4, characterized in that angled spring arms ( 17 a) are arranged on the inner circumference of the spring washer, which in the assembled state press such an outer ring ( 12 a) of the bearing ( 12 ) that they produce an electrically conductive connection , , 6. Elektromotor nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß am Außenumfang der Feder­ scheibe abgewinkelte Federbeine (17b) angeordnet sind, die stirnseitige Öffnungen (18) des Lagerrohres (9) durchgreifen und den Stator (4) elektrisch kontaktieren.6. Electric motor according to claim 4 or 5, characterized in that on the outer periphery of the spring washer angled struts ( 17 b) are arranged, reach through the end openings ( 18 ) of the bearing tube ( 9 ) and electrically contact the stator ( 4 ). 7. Elektromotor nach Anspruch 6, dadurch gekennzeichnet, daß die stirnseitigen Öffnungen (18) des Lagerrohres (9) in zumindest einem Lagerrohransatz (10) angeordnet sind.7. Electric motor according to claim 6, characterized in that the end openings ( 18 ) of the bearing tube ( 9 ) are arranged in at least one bearing tube extension ( 10 ). 8. Elektromotor nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß die stirnseitigen Öffnungen (18) des Lagerrohres (9) bis zur metallischen Oberfläche des Statorblechpaketes (6) hin geöffnet sind.8. Electric motor according to claim 6 or 7, characterized in that the end openings ( 18 ) of the bearing tube ( 9 ) to the metallic surface of the stator core ( 6 ) are open. 9. Elektromotor nach einem der Ansprüche 4 bis 8, dadurch gekennzeichnet, daß im Ringbereich der Federscheibe Durchtrittsöffnungen (19) zur Verschraubung mit dem Lagerrohr (9) und im Lagerrohr (9) korrespondierende Schraubenaufnahmen (20) angeordnet sind.9. Electric motor according to one of claims 4 to 8, characterized in that passage openings ( 19 ) for screwing to the bearing tube ( 9 ) and in the bearing tube ( 9 ) corresponding screw receptacles ( 20 ) are arranged in the annular region of the spring washer. 10. Elektromotor nach einem der Ansprüche 1 bis 9, gekennzeichnet durch eine elektronische Kommutierung bei Gleich­ strombetrieb.10. Electric motor according to one of claims 1 to 9, characterized by an electronic commutation at Gleich power operation. 11. Elektromotor nach einem der Ansprüche 1 bis 9, gekennzeichnet durch eine Drehzahleinstellung des Rotors (5) mittels einer Steuer- bzw. Regeleinrichtung auf der Basis pulsweiten-modulierter Signale.11. Electric motor according to one of claims 1 to 9, characterized by a speed setting of the rotor ( 5 ) by means of a control device on the basis of pulse-width-modulated signals. 12. Gebläse, insbesondere zur Förderung brennbarer Gase, mit einem Gehäuse (1) und mit einem Lüfterrad (2), das mittels eines Elektomotors angetrieben ist, gekennzeichnet durch einen Elektromotor (3) nach einem der Ansprüche 1 bis 11.12. Blower, in particular for conveying combustible gases, with a housing ( 1 ) and with a fan wheel ( 2 ) which is driven by an electric motor, characterized by an electric motor ( 3 ) according to one of claims 1 to 11. 13. Gebläse nach Anspruch 12, dadurch gekennzeichnet, daß das Gehäuse (1) aus einem elektrisch leitenden Material besteht und der Schutzleiter (16) für den Elektromotor (3) an dem Gehäuse (1) angeschlossen ist.13. Blower according to claim 12, characterized in that the housing ( 1 ) consists of an electrically conductive material and the protective conductor ( 16 ) for the electric motor ( 3 ) is connected to the housing ( 1 ). 14. Gebläse nach Anspruch 12 oder 13, dadurch gekennzeichnet, daß das Leiterstück (17) das Gehäuse (1) kontaktiert.14. Blower according to claim 12 or 13, characterized in that the conductor piece ( 17 ) contacts the housing ( 1 ). 15. Gebläse nach einem der Ansprüche 12 bis 14, dadurch gekennzeichnet, daß das Leiterstück (17) als Feder­ scheibe ausgebildet ist, die, insbesondere mittels einer Verschraubung (Schrauben 15) von Gehäuse (1) und Elektromotor (3), zwischen dem Gehäuse (1) und einer Stirnseite des Lagerrohres (9) gehalten ist.15. Blower according to one of claims 12 to 14, characterized in that the conductor piece ( 17 ) is designed as a spring washer, which, in particular by means of a screw (screws 15 ) of the housing ( 1 ) and electric motor ( 3 ), between the housing ( 1 ) and an end face of the bearing tube ( 9 ) is held. 16. Gebläse nach einem der Ansprüche 12 bis 15, dadurch gekennzeichnet, daß das Leiterstück (17) als vorzugsweise aus Federstahl bestehendes Biege-Stanz-Teil gefertigt ist.16. Blower according to one of claims 12 to 15, characterized in that the conductor piece ( 17 ) is made as a preferably made of spring steel bending-stamped part.
DE20021796U 2000-12-22 2000-12-22 Electric motor, in particular external rotor motor, and blower with such an electric motor Expired - Lifetime DE20021796U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20021796U DE20021796U1 (en) 2000-12-22 2000-12-22 Electric motor, in particular external rotor motor, and blower with such an electric motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE20021796U DE20021796U1 (en) 2000-12-22 2000-12-22 Electric motor, in particular external rotor motor, and blower with such an electric motor

Publications (1)

Publication Number Publication Date
DE20021796U1 true DE20021796U1 (en) 2002-05-02

Family

ID=7950486

Family Applications (1)

Application Number Title Priority Date Filing Date
DE20021796U Expired - Lifetime DE20021796U1 (en) 2000-12-22 2000-12-22 Electric motor, in particular external rotor motor, and blower with such an electric motor

Country Status (1)

Country Link
DE (1) DE20021796U1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7586228B2 (en) 2005-02-07 2009-09-08 Ebm-Papst Mulgingen Gmbh & Co. Kg Stator of an electric motor
DE102011113029A1 (en) * 2011-09-10 2013-03-14 Minebea Co., Ltd. Electric motor i.e. external rotor, for fan, has bearing seat for accommodating bearing, and spring element arranged at circumference of bearing seat and provided for exerting pressing force on bearing in radial direction
WO2013174626A1 (en) * 2012-05-25 2013-11-28 Robert Bosch Gmbh Electronically commutated dc motor with shielding
WO2015197574A1 (en) * 2014-06-26 2015-12-30 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Electric machine
DE102015211800B4 (en) * 2014-06-26 2017-06-01 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Electric machine
DE102016205252A1 (en) 2016-03-30 2017-10-05 Mahle International Gmbh Bearing arrangement of a motor shaft of an electric motor
CN108397400A (en) * 2017-02-08 2018-08-14 信浓绢糸株式会社 Blowing plant
EP3468013A1 (en) * 2017-10-06 2019-04-10 KACO GmbH + Co. KG Shaft grounding ring and discharge body for a shaft grounding ring
DE102019211530A1 (en) * 2019-08-01 2021-02-04 Vitesco Technologies GmbH Purge air pump and vehicle

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7586228B2 (en) 2005-02-07 2009-09-08 Ebm-Papst Mulgingen Gmbh & Co. Kg Stator of an electric motor
DE102011113029A1 (en) * 2011-09-10 2013-03-14 Minebea Co., Ltd. Electric motor i.e. external rotor, for fan, has bearing seat for accommodating bearing, and spring element arranged at circumference of bearing seat and provided for exerting pressing force on bearing in radial direction
WO2013174626A1 (en) * 2012-05-25 2013-11-28 Robert Bosch Gmbh Electronically commutated dc motor with shielding
US9673686B2 (en) 2012-05-25 2017-06-06 Robert Bosch Gmbh Electronically commutated DC motor with shielding
WO2015197574A1 (en) * 2014-06-26 2015-12-30 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Electric machine
DE102015211800B4 (en) * 2014-06-26 2017-06-01 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Electric machine
DE102016205252A1 (en) 2016-03-30 2017-10-05 Mahle International Gmbh Bearing arrangement of a motor shaft of an electric motor
WO2017167586A1 (en) 2016-03-30 2017-10-05 Mahle International Gmbh Bearing assembly of a motor shaft of an electric motor
CN108432092A (en) * 2016-03-30 2018-08-21 马勒国际公司 The bearing arrangement of the motor shaft of motor
US10523069B2 (en) 2016-03-30 2019-12-31 Mahle International Gmbh Bearing assembly of a motor shaft of an electric motor
CN108432092B (en) * 2016-03-30 2020-03-20 马勒国际公司 Bearing device for motor shaft of motor
CN108397400A (en) * 2017-02-08 2018-08-14 信浓绢糸株式会社 Blowing plant
EP3468013A1 (en) * 2017-10-06 2019-04-10 KACO GmbH + Co. KG Shaft grounding ring and discharge body for a shaft grounding ring
US10840778B2 (en) 2017-10-06 2020-11-17 Kaco Gmbh + Co. Kg Shaft grounding ring and dissipation body for a shaft grounding ring
DE102019211530A1 (en) * 2019-08-01 2021-02-04 Vitesco Technologies GmbH Purge air pump and vehicle

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20020606

R081 Change of applicant/patentee

Owner name: EBM-PAPST MULFINGEN GMBH & CO. KG, DE

Free format text: FORMER OWNER: EBM WERKE GMBH & CO. KG, 74673 MULFINGEN, DE

Effective date: 20040310

R150 Term of protection extended to 6 years

Effective date: 20040421

R151 Term of protection extended to 8 years

Effective date: 20070308

R152 Term of protection extended to 10 years

Effective date: 20090311

R071 Expiry of right