WO2007051668A1 - Moteur électrique avec des éléments magnétiques arqués fixés à la périphérie interne du boîtier du moteur - Google Patents

Moteur électrique avec des éléments magnétiques arqués fixés à la périphérie interne du boîtier du moteur Download PDF

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Publication number
WO2007051668A1
WO2007051668A1 PCT/EP2006/066333 EP2006066333W WO2007051668A1 WO 2007051668 A1 WO2007051668 A1 WO 2007051668A1 EP 2006066333 W EP2006066333 W EP 2006066333W WO 2007051668 A1 WO2007051668 A1 WO 2007051668A1
Authority
WO
WIPO (PCT)
Prior art keywords
electric motor
spring
springs
magnetic elements
motor housing
Prior art date
Application number
PCT/EP2006/066333
Other languages
German (de)
English (en)
Inventor
Robert Hessdörfer
Ute Nawarotzky
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2007051668A1 publication Critical patent/WO2007051668A1/fr

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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
    • H02K1/17—Stator cores with permanent magnets

Definitions

  • the invention relates to an electric motor with fixed on the inner circumference of the motor housing curved magnetic elements.
  • an electric motor is already known.
  • This known electric motor has a motor housing, on whose inner circumference magnetic shells are fixed.
  • clamping elements are used, which are imprinted between the tangential faces of adjacent magnetic shells.
  • These clamping elements are Bugel plug springs, which have an M-shaped appearance in the printed state.
  • the two side legs of the Bugel plug springs with the respective adjacent magnetic shell in conjunction and print them to the inner circumference of the motor housing.
  • the leg connecting the side legs together curved in the imprinted state of the respective Bugel-plug spring inward, so that the middle part of the arc from the inner circumference of the motor housing is farther away than the outer regions of the arc.
  • the Bugel plug-in spring is contacted in the printed state in each case in the transition region between a side leg and the base leg with the inner circumference of the motor housing.
  • the springs receive a bias that forces the magnetic shells against the inner circumference of the motor housing.
  • magnetic forces and vibrations act on the Bugel stiffeners, causing them to vibrate in the radial direction.
  • the known springs are provided with a motor housing-side sound-absorbing coating, in particular a plastic coating.
  • the invention has for its object to provide an electric motor with fixed on the inner circumference of the motor housing by means of springs bent magnetic elements, wherein the fixation of the bent magnetic elements is improved.
  • the advantages of the invention are in particular that adapt the side leg segments of the springs to the shape tolerances of the magnetic elements, whereby the fixation of the magnetic elements is improved on the inner circumference of the motor housing. In particular, a better stability and a better distribution of force is ensured.
  • the springs can be fed fully automatically and without contact with respect to the magnetic elements.
  • the spring is gripped by tool arms and compressed to a dimension that is smaller than the installation space. In this biased state, an axial, contactless positioning of the springs between two adjacent magnetic elements is possible. In such a procedure, splintering of the magnetic edges during assembly is avoided.
  • FIG. 1 shows a perspective view of a part of an electric motor with inserted magnetic elements and inserted springs
  • FIG. 2 is a perspective view of the front view of a spring
  • FIG. 3 is a perspective view of the rear view of a spring
  • FIG. 4 shows a plan view of a part of the electric motor shown in FIG.
  • Figure 5 is a bottom view of a portion of the electric motor shown in Figure 1.
  • FIG. 1 shows a perspective view of a
  • the electric motor shown in FIG. 1 has a cylinder-shaped motor housing 11. On the inner circumference of this motor housing 11 arcuate magnetic elements 1 are fixed. To fix the position of these magnetic elements serve springs 2. Each of these springs is between the side surfaces 3 of two adjacent barter magnetic elements 1 used. Two adjacent inserted springs 2 press the respective magnetic element 1 arranged between these springs against the inner periphery of the motor housing 11.
  • the reference numeral 8 in FIG. 1 designates the upper sides of the magnetic elements 1.
  • FIG. 2 shows a perspective view of the front view of a spring 2, which is provided between two adjacent magnetic elements 1.
  • the spring 2 has a base leg 12 and two side legs 13 and 14.
  • the base leg 12 is curved inwards. Furthermore, the base leg 12 in its central region on a bend 9, which is directed outwards and upwards.
  • the side leg 13 has a plurality of side leg segments 13 a, which are each separated by a slot 4. Each of the side leg segments 13 a is bent inwardly both in its middle part and in its end region 5 remote from the base leg 12. The bend in the end region 5 is preferably designed semicircular.
  • the side leg 14 has a plurality of side leg segments 14 a, which are each separated by a slot 4. Each of the side leg segments 14 a is bent inwardly both in its middle part and in its end region 5 remote from the base leg 12. The bend in the end region 5 is preferably designed semicircular.
  • FIG. 3 shows a perspective view of the rear view of the spring shown in FIG. From this rear view, in particular, the bulge 9 provided in the middle region of the base leg 12, the side limb 13 with the three side limb segments 13a, the spring arms 6 provided in the upper region and the spring arms 7 provided in the region of the slots can be seen.
  • FIG. 4 shows a plan view of a part of the electric motor shown in FIG. From this representation, it is apparent, in particular, that a spring 2 pressing against the inner circumference of the motor housing 11 is provided between two magnetic elements 1 resting against the inner circumference of the motor housing 11. This has an inwardly arched base leg 12. The emerging from this leg bending 9 is placed in the inserted state of the spring in a survey 10 of the motor housing 11. This prevents the spring from slipping upwards. As an alternative, this can also be achieved by the motor housing 11 having a recess and the deflection 9 being placed in this recess of the motor housing in the inserted state of the spring.
  • the side leg segments 13a of the side leg 13 and the side leg segments 14a of the side leg 14 of the spring 2 are bent.
  • the bend provided in the central part of the side leg segments presses in each case in a line on the side surface of the respective magnet element 1 which tapers in the shape of a wedge.
  • the bend provided in the end region 5 of the side leg segments runs in each case in a semicircle.
  • FIG. 4 it is illustrated in FIG. 4 that the spring arms 6 provided in the upper region of the spring run above the magnetic elements 1. This ensures during operation that the magnetic elements 1 can not slip upwards. Furthermore, it can be seen from FIG. 4 that, with the spring inserted, the spring arms 7 rest against the wedge-shaped side surfaces of the magnetic elements 1 in the rear part of the latter. This ensures that the springs during operation can not fall inward in the radial direction, ie in the direction of the rotor of the electric motor.
  • FIG. 5 shows a bottom view of part of the electric motor shown in FIG. It also follows from this illustration that between the two magnetic elements 1 resting on the inner circumference of the motor housing, a spring 2 which presses the magnetic elements against the inner circumference of the motor housing 11 is provided. Also from this figure, the inwardly curved base leg 12, emerging from the base leg 12 deflection 9 and the elevation 10 of the motor housing 11 can be seen. Furthermore, it is also illustrated in FIG.
  • the magnetic elements 1 are first placed on the inner circumference of the motor housing 11.
  • the springs 2 are inserted non-contact with respect to the magnetic elements 1 in the axial direction.
  • the springs are gripped for this purpose by tool arms and to a degree that smaller than the available installation space, compressed.
  • the axial, contactless positioning of the respective spring takes place between two adjacent magnetic elements. Only in their final position after removal of the tool arms, the springs go on so that they press the respective adjacent magnetic elements to the inner circumference of the motor housing.

Landscapes

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

Abstract

La présente invention concerne un moteur électrique qui comporte un boîtier de moteur et des éléments magnétiques arqués fixés à la périphérie interne du boîtier de moteur au moyen de ressorts. Un ressort est ainsi placé à chaque fois entre les surfaces latérales de deux éléments magnétiques contigus. Chaque ressort comporte en outre deux colonnes latérales et une colonne fondamentale reliant les colonnes latérales entre elles. Chacune des colonnes latérales comporte au moins deux segments de colonnes latérales qui sont séparés l’un de l’autre par une fente.
PCT/EP2006/066333 2005-11-07 2006-09-13 Moteur électrique avec des éléments magnétiques arqués fixés à la périphérie interne du boîtier du moteur WO2007051668A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005053021.4 2005-11-07
DE102005053021 2005-11-07

Publications (1)

Publication Number Publication Date
WO2007051668A1 true WO2007051668A1 (fr) 2007-05-10

Family

ID=37441386

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/066333 WO2007051668A1 (fr) 2005-11-07 2006-09-13 Moteur électrique avec des éléments magnétiques arqués fixés à la périphérie interne du boîtier du moteur

Country Status (1)

Country Link
WO (1) WO2007051668A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010038449A1 (de) * 2010-07-27 2012-02-02 Robert Bosch Gmbh Elektrische Maschine
WO2014000907A3 (fr) * 2012-06-25 2014-09-12 Robert Bosch Gmbh Moteur électrique
CN106877614A (zh) * 2017-03-31 2017-06-20 苏州金莱克汽车电机有限公司 一种开放式电机
EP3531434A1 (fr) * 2018-02-26 2019-08-28 Honeywell International Inc. Support d'aimant et ensemble de support d'aimant

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2513227A (en) * 1945-07-11 1950-06-27 Redmond Company Inc Field structure for rotating electrical equipement
FR2125756A5 (fr) * 1971-02-19 1972-09-29 Ferodo Sa
GB1492638A (en) * 1974-04-24 1977-11-23 Siemens Ag Electrical motor having permanent magnet excitation
US4225799A (en) * 1979-07-11 1980-09-30 General Motors Corporation Field magnet assembly
US4412145A (en) * 1981-02-16 1983-10-25 Siemens Aktiengesellschaft Stator for an electric machine excited by permanent magnets
US4445060A (en) * 1980-12-20 1984-04-24 Robert Bosch Gmbh Electric starter motor with holder for permanent magnets
US4580072A (en) * 1983-11-05 1986-04-01 Mitsubishi Denki Kabushiki Kaisha Stator for magnet-type rotating machines
FR2572862A1 (fr) * 1984-11-07 1986-05-09 Peugeot Aciers Et Outillage Stator de machine electrique tournante, comprenant notamment une culasse cylindrique dans laquelle sont fixees des aimants permanents, procede et appareil de montage de stator
US4636107A (en) * 1982-03-30 1987-01-13 Plus Manufacturing Co., Inc. Reformed in place resilient retention springs
US4859892A (en) * 1987-02-23 1989-08-22 Mitsubishi Denki Kabushiki Kaisha Apparatus for securing magnetic poles of magnet-type rotating machines
EP1035629A2 (fr) * 1999-03-12 2000-09-13 Denso Corporation Agencement d'aimants permanent pour moteur
EP1211778A2 (fr) * 2000-11-30 2002-06-05 Valeo Mando Electrical Systems Korea Limited Support d'aimant pour démarreur
WO2004107528A2 (fr) * 2003-05-30 2004-12-09 Valeo Equipements Electriques Moteur Dispositif de fixation d’aimants permanents a l’interieur d’une culasse d’un inducteur de moteur electrique

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2513227A (en) * 1945-07-11 1950-06-27 Redmond Company Inc Field structure for rotating electrical equipement
FR2125756A5 (fr) * 1971-02-19 1972-09-29 Ferodo Sa
GB1492638A (en) * 1974-04-24 1977-11-23 Siemens Ag Electrical motor having permanent magnet excitation
US4225799A (en) * 1979-07-11 1980-09-30 General Motors Corporation Field magnet assembly
US4445060A (en) * 1980-12-20 1984-04-24 Robert Bosch Gmbh Electric starter motor with holder for permanent magnets
US4412145A (en) * 1981-02-16 1983-10-25 Siemens Aktiengesellschaft Stator for an electric machine excited by permanent magnets
US4636107A (en) * 1982-03-30 1987-01-13 Plus Manufacturing Co., Inc. Reformed in place resilient retention springs
US4580072A (en) * 1983-11-05 1986-04-01 Mitsubishi Denki Kabushiki Kaisha Stator for magnet-type rotating machines
FR2572862A1 (fr) * 1984-11-07 1986-05-09 Peugeot Aciers Et Outillage Stator de machine electrique tournante, comprenant notamment une culasse cylindrique dans laquelle sont fixees des aimants permanents, procede et appareil de montage de stator
US4859892A (en) * 1987-02-23 1989-08-22 Mitsubishi Denki Kabushiki Kaisha Apparatus for securing magnetic poles of magnet-type rotating machines
EP1035629A2 (fr) * 1999-03-12 2000-09-13 Denso Corporation Agencement d'aimants permanent pour moteur
EP1211778A2 (fr) * 2000-11-30 2002-06-05 Valeo Mando Electrical Systems Korea Limited Support d'aimant pour démarreur
WO2004107528A2 (fr) * 2003-05-30 2004-12-09 Valeo Equipements Electriques Moteur Dispositif de fixation d’aimants permanents a l’interieur d’une culasse d’un inducteur de moteur electrique

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010038449A1 (de) * 2010-07-27 2012-02-02 Robert Bosch Gmbh Elektrische Maschine
CN102347649A (zh) * 2010-07-27 2012-02-08 罗伯特·博世有限公司 电机
EP2413473A3 (fr) * 2010-07-27 2012-11-07 Robert Bosch GmbH Machine électrique
WO2014000907A3 (fr) * 2012-06-25 2014-09-12 Robert Bosch Gmbh Moteur électrique
CN104412489A (zh) * 2012-06-25 2015-03-11 罗伯特·博世有限公司 电机
CN106877614A (zh) * 2017-03-31 2017-06-20 苏州金莱克汽车电机有限公司 一种开放式电机
CN106877614B (zh) * 2017-03-31 2023-08-22 江苏莱克智能电器有限公司 一种开放式电机
EP3531434A1 (fr) * 2018-02-26 2019-08-28 Honeywell International Inc. Support d'aimant et ensemble de support d'aimant

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