EP1275190A1 - Moteur electrique - Google Patents

Moteur electrique

Info

Publication number
EP1275190A1
EP1275190A1 EP01931430A EP01931430A EP1275190A1 EP 1275190 A1 EP1275190 A1 EP 1275190A1 EP 01931430 A EP01931430 A EP 01931430A EP 01931430 A EP01931430 A EP 01931430A EP 1275190 A1 EP1275190 A1 EP 1275190A1
Authority
EP
European Patent Office
Prior art keywords
stator
housing
electric motor
rotor
decoupling elements
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.)
Ceased
Application number
EP01931430A
Other languages
German (de)
English (en)
Inventor
Wolfgang Kehrer
Wolfgang Frank
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 EP1275190A1 publication Critical patent/EP1275190A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
    • H02K1/185—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to outer stators

Definitions

  • the invention relates to an electric motor, in particular for driving a fan in air conditioning systems, according to the preamble of claim 1.
  • Electric motor as a blower motor of an air conditioning system are emitted as airborne sound and as structure-borne noise via the blower housing and produce quite disturbing noises in the vehicle interior. Measures are therefore taken to largely reduce this noise.
  • the stator is supported on the bearing sleeves of the rotor bearings by means of spring-elastic elements which are each formed as two concentrically connected concentric rings. The inner ring is on the
  • Bearing sleeve and the outer ring attached to the stator are in turn fixed in an external device, e.g. on the housing of a vacuum cleaner.
  • the rotor bearings are each accommodated in a bearing bracket, and the bearing bracket is fastened to the stator via noise-damping elements.
  • the bearing brackets are cap-shaped and, together with the cylindrical pole tube of the stator which carries permanent magnetic poles, form a closed housing which is used as a complete structural unit in the unit to be driven.
  • the electric motor according to the invention has the advantage that noise reduction goes hand in hand with a structurally simple and robust construction of the motor. Manufacturing technically complex and difficult mounting brackets for the
  • Rotor bearings are eliminated. Rather, the rotor bearings are rigidly attached to the housing with their bearing sleeves and can be injection molded in a simple manner during the manufacture of the housing. Since the rotor bearings, which are preferably designed as slide bearings, cannot transmit tangential forces from the rotor, they are decoupled from the stator. By the resilient fastening of the stator to the housing is not a rigid connection between the stator and the housing, so that structure-borne noise transmission from the stator to the housing is prevented.
  • decoupling elements spaced apart from one another in the circumferential direction and on which the stator is held in a non-positive and / or positive manner are fastened to the inner wall of the housing for the spring-elastic suspension of the stator.
  • the decoupling elements consist of an elastomer and are also molded onto the housing molded from plastic in a two-component process.
  • FIG. 2 shows a side view of an electric motor without a housing, which is somewhat modified compared to FIG. 3 shows a section of a section along the line III-III in Fig. 2,
  • FIG. 4 shows a detail of a plan view in the direction of arrow IV in FIG. 2.
  • a rotor winding (not shown for the sake of clarity) lies in the axial slots of the rotor body 16 and is electrically connected to a current transformer or commutator 17 which is fixed on the rotor shaft 13 in a rotationally fixed manner.
  • Commutator or carbon brushes 18, which are guided radially displaceably in so-called quivers 19 of a brush holder 20 and are pressed against the commutator 17 with spring preload, are used for the current supply to the rotor winding.
  • Stator 11 and rotor 12 are accommodated in a housing 10 with a housing pot 21 which is closed with a housing cover 22.
  • a housing pot 21 which is closed with a housing cover 22.
  • Housing pot 21 facing away from the pot end of the housing cover 22 receiving radial flange 24 is formed, with which the housing cover 22 is screwed, for example, by screw connections 25, which are indicated in FIG. 1 by dot-dash lines.
  • the housing cover 22 in turn carries a one-piece with the housing cover 22
  • Fastening flange 26 The fastening flange 26 is provided with fastening holes 27, through which fastening screws can be inserted, for example, in order to fasten the electric motor in an assembly, for example in the blower housing of an air conditioning system.
  • the rotor bearings 14, 15 for receiving the rotor shaft 13 are fixed on the housing side, the rotor bearing 14 being integrated in the pot base 23 of the housing pot 21 and the rotor bearing 15 being integrated in the housing cover 22. Housing pot 21 and
  • Housing covers 22 are, for example, made of plastic and, for example, injection molded, and the rotor bearings 14, 15 are injected, for example, during the injection process.
  • the stator 11 is suspended on the housing pot 21 in a spring-elastic manner.
  • decoupling elements 28, which are spaced apart from one another in the circumferential direction and on which the stator 11 is held in a non-positive and / or positive manner, are fastened to the inner wall 211 of the housing pot 21.
  • the stator 11 consisting of a pole tube 30 equipped with permanent magnet poles 29 is supported with its pole tube 30, for example, directly on the decoupling elements 28.
  • decoupling elements 28 are provided, which are each arranged offset by 90 ° 'rotation angle so as to be in the sectional view of two decoupling elements 28 are seen.
  • the decoupling elements 28 extend, for example, over the entire axial length of the pole tube 30 and protrude somewhat at the end.
  • decoupling elements 28 there are a total of three decoupling elements 28 which are offset from one another by an angle of rotation of 120 ° and which in turn extend over the entire length of the pole tube 30.
  • the decoupling elements 28 consist, for example, of an elastomer and are molded onto the housing pot 21 molded from plastic
  • the elastomer TO..623 / 60A from TCT is suitable as the elastomer for the decoupling elements 28.
  • each decoupling element 28 has a C-profile with a longitudinal web 281, which is molded onto the inner wall 211 of the housing pot 21 (FIG. 4), with one from the longitudinal web 281 to the rotor shaft 13 short leg 282 projecting at right angles and with a long leg 283 projecting at right angles from the longitudinal web 281 to the rotor shaft.
  • a long leg 283 from the inside of the leg facing the short leg 282, an arcuate or ring-section-shaped groove 31 is introduced, which extends over the circumferential width of the long leg 283 '.
  • This groove 31 is designed such that the pole tube 30 can be inserted into the groove 31 in a form-fitting manner with a portion of its one end 301.
  • a form-locking element is formed which is connected to the outer jacket of the pole tube 30 cooperates near the other end face 302 formed form-locking element.
  • the two positive locking elements are formed by groove 33 and tongue 32 of a dovetail connection 34, whereby - as can be seen in FIG. 4 - the tongue 32 on the short leg 282 of the decoupling element 28 and the groove 33 on the pole tube 30 is arranged.
  • the groove 33 of the dovetail connection 34 incorporated in the pole tube 30 is open towards the end face 302 of the pole tube 30, so that the spring 32 on the elastic decoupling element 28 can be pressed axially into the groove 33.
  • the assembly completely pre-assembled with the stator 11, rotor 12, rotor shaft 13 and commutator 17 is inserted into the housing pot 21 from above, the brush holder 20 fixed on the housing pot 21 having been mounted beforehand.
  • the commutator 17 must be pushed between the carbon brushes 18 of the brush holder 20 until the end of the rotor shaft can be inserted into the rotor bearing 14 in the pot base 23.
  • the pole tube 30 dips with its front end 301 into the grooves 31 in the lower long leg 283 of the decoupling elements 28 and is formed with its grooves 33 of the dovetail connections 34 onto the spring-elastic decoupling elements 28
  • the pole tube 30 is thus positively engaged in the lower long legs 283 at three points offset from one another by an angle of rotation of 120 ° on the other hand positively held on the upper short legs 282 of the three decoupling elements 28.
  • the pole tube 30 need not be a closed hollow cylinder, but can be composed of hollow cylindrical wall segments, each of which extends in the circumferential direction over at least one pair of poles. Such pole tube segments are held in the same way in the decoupling elements 28 as described above, but at least two decoupling elements 28 are then required per pole tube segment.
  • a positive fit between the pole tube 30 and the decoupling elements 28 can also be dispensed with by designing the decoupling elements 28 such that the pole tube 30 jams in the radial direction between the decoupling elements 28 and thus between the Decoupling elements 28 is held non-positively.
  • a frictional engagement allows for easier formation of the decoupling elements 28 that need to be injected only as a shell-shaped segments of the 'inner wall 211 of the casing pot 21st Possibly. an anti-rotation device would still have to be provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

L'invention concerne un moteur électrique comprenant un stator (11) et un rotor (12) logé de manière rotative dans des paliers de rotor (14, 15) par l'intermédiaire de son arbre de rotor (13). Dans ce moteur, le stator (11) et les paliers de rotor (14, 15) sont désaccouplés de manière efficace afin de permettre de réduire le bruit aérien et le bruit de structure. L'invention vise à créer un moteur très silencieux, conçu de manière simple et robuste. A cet effet, on fixe les paliers de rotor (14, 15) sur un boîtier (10) entourant le stator (11), et on réalise le désaccouplement en suspendant, de manière élastique, le stator (11) au boîtier (10), au moyen d'éléments de désaccouplement élastiques (28) placés entre le stator (11) et le boîtier (10).
EP01931430A 2000-04-12 2001-04-11 Moteur electrique Ceased EP1275190A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10018156 2000-04-12
DE10018156A DE10018156A1 (de) 2000-04-12 2000-04-12 Elektromotor
PCT/DE2001/001421 WO2001078213A1 (fr) 2000-04-12 2001-04-11 Moteur electrique

Publications (1)

Publication Number Publication Date
EP1275190A1 true EP1275190A1 (fr) 2003-01-15

Family

ID=7638487

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01931430A Ceased EP1275190A1 (fr) 2000-04-12 2001-04-11 Moteur electrique

Country Status (7)

Country Link
US (1) US20030006660A1 (fr)
EP (1) EP1275190A1 (fr)
JP (1) JP2003530808A (fr)
KR (1) KR20020025071A (fr)
BR (1) BR0105793A (fr)
DE (1) DE10018156A1 (fr)
WO (1) WO2001078213A1 (fr)

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US6789526B2 (en) * 2001-02-08 2004-09-14 Denso Corporation Apparatus for controlling throttle valve and manufacturing method for the same and motor
DE10143713B4 (de) * 2001-08-30 2005-11-03 Siemens Ag Elektrische Antriebseinrichtung für ein Schiff
DE10249157A1 (de) * 2002-10-22 2004-05-06 Robert Bosch Gmbh Kontaktelementhalter
DE50211524D1 (de) * 2002-11-16 2008-02-21 Minebea Co Ltd Miniaturmotor mit Dauermagnetläufer
DE10261617A1 (de) * 2002-12-27 2004-07-22 Robert Bosch Gmbh Elektrische Maschine
DE10305649A1 (de) * 2003-02-12 2004-08-26 Robert Bosch Gmbh Außenläufermotor
US8993055B2 (en) 2005-10-27 2015-03-31 Asm International N.V. Enhanced thin film deposition
JP5551681B2 (ja) 2008-04-16 2014-07-16 エーエスエム アメリカ インコーポレイテッド アルミニウム炭化水素化合物を使用する金属炭化物膜の原子層堆積
JP5968182B2 (ja) * 2012-09-28 2016-08-10 アスモ株式会社 回転電機
US9412602B2 (en) 2013-03-13 2016-08-09 Asm Ip Holding B.V. Deposition of smooth metal nitride films
US8841182B1 (en) 2013-03-14 2014-09-23 Asm Ip Holding B.V. Silane and borane treatments for titanium carbide films
US8846550B1 (en) 2013-03-14 2014-09-30 Asm Ip Holding B.V. Silane or borane treatment of metal thin films
KR102114382B1 (ko) * 2013-12-30 2020-06-05 엘지이노텍 주식회사 모터
US9394609B2 (en) 2014-02-13 2016-07-19 Asm Ip Holding B.V. Atomic layer deposition of aluminum fluoride thin films
US10643925B2 (en) 2014-04-17 2020-05-05 Asm Ip Holding B.V. Fluorine-containing conductive films
KR102180737B1 (ko) * 2014-08-27 2020-11-19 엘지이노텍 주식회사 모터 및 이를 포함하는 동력 전달 장치
KR102216575B1 (ko) 2014-10-23 2021-02-18 에이에스엠 아이피 홀딩 비.브이. 티타늄 알루미늄 및 탄탈륨 알루미늄 박막들
DE102014221492A1 (de) 2014-10-23 2016-04-28 Bayerische Motoren Werke Aktiengesellschaft Elektrische Maschine mit einer reduzierten Schallemission
FR3029963B1 (fr) * 2014-12-11 2020-01-17 Valeo Systemes De Controle Moteur Machine electrique
DE102015226721A1 (de) * 2015-07-15 2017-01-19 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Elektromotor
US9941425B2 (en) 2015-10-16 2018-04-10 Asm Ip Holdings B.V. Photoactive devices and materials
US9786491B2 (en) 2015-11-12 2017-10-10 Asm Ip Holding B.V. Formation of SiOCN thin films
US9786492B2 (en) 2015-11-12 2017-10-10 Asm Ip Holding B.V. Formation of SiOCN thin films
KR102378021B1 (ko) 2016-05-06 2022-03-23 에이에스엠 아이피 홀딩 비.브이. SiOC 박막의 형성
JP6783679B2 (ja) * 2017-02-03 2020-11-11 シナノケンシ株式会社 モータ及びブロワ
US11699937B2 (en) * 2017-02-03 2023-07-11 Shinano Kenshi Kabushiki Kaisha Blower
US10847529B2 (en) 2017-04-13 2020-11-24 Asm Ip Holding B.V. Substrate processing method and device manufactured by the same
US10504901B2 (en) 2017-04-26 2019-12-10 Asm Ip Holding B.V. Substrate processing method and device manufactured using the same
JP7249952B2 (ja) 2017-05-05 2023-03-31 エーエスエム アイピー ホールディング ビー．ブイ． 酸素含有薄膜の制御された形成のためのプラズマ増強堆積プロセス
US10991573B2 (en) 2017-12-04 2021-04-27 Asm Ip Holding B.V. Uniform deposition of SiOC on dielectric and metal surfaces
KR102097806B1 (ko) * 2019-03-11 2020-04-06 (주)케이이엠 일체형 수냉식 모터 하우징 제조방법
CN110247530A (zh) * 2019-07-23 2019-09-17 中达电机股份有限公司 转轴固定装置
CN111371240B (zh) * 2020-03-23 2021-05-28 浙江聚强机电有限公司 一种基于非牛顿流体的电机震动缓冲装置
JP7420665B2 (ja) 2020-06-30 2024-01-23 株式会社日立製作所 鉄道車両台車
DE102022208436A1 (de) 2022-08-12 2024-02-15 Robert Bosch Gesellschaft mit beschränkter Haftung Stator für eine elektrische Maschine, eine elektrische Maschine, sowie Verfahren zum Herstellen eines solchen Stators

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Also Published As

Publication number Publication date
DE10018156A1 (de) 2001-10-25
JP2003530808A (ja) 2003-10-14
US20030006660A1 (en) 2003-01-09
KR20020025071A (ko) 2002-04-03
WO2001078213A1 (fr) 2001-10-18
BR0105793A (pt) 2002-02-26

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