EP2115856A2 - Moteur électrique et élément de bobine pour un tel moteur - Google Patents

Moteur électrique et élément de bobine pour un tel moteur

Info

Publication number
EP2115856A2
EP2115856A2 EP08707367A EP08707367A EP2115856A2 EP 2115856 A2 EP2115856 A2 EP 2115856A2 EP 08707367 A EP08707367 A EP 08707367A EP 08707367 A EP08707367 A EP 08707367A EP 2115856 A2 EP2115856 A2 EP 2115856A2
Authority
EP
European Patent Office
Prior art keywords
winding
flat
elements
stator
electric motor
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Withdrawn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
EP08707367A
Other languages
German (de)
English (en)
Inventor
Peter Ortloff
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.)
BINOVA GmbH
Ortloff Helene
Original Assignee
Ortloff Helene
Walter Soehner 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 Ortloff Helene, Walter Soehner GmbH and Co KG filed Critical Ortloff Helene
Publication of EP2115856A2 publication Critical patent/EP2115856A2/fr
Withdrawn legal-status Critical Current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
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/26—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors consisting of printed conductors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/03—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets

Definitions

  • the invention relates to an electric motor, in particular a DC motor, with a rotor having at least one magnetic ring with at least one magnetic element, and with a stator having at least one Statorwicklungs- element with coil elements, wherein the rotor and stator against each other movable and through at least one air gap Distance are kept.
  • the invention further relates to a coil element for such a motor.
  • an electric motor and a generator are to be regarded as similar in construction and thus as machines, which differ only by their operating form, so that the invention - mutatis mutandis - extends to a generator for generating electric power.
  • Iron does not amplify the magnetic field in the sense that it adds a field of its own to the magnetic field of the coil, but only shortens the lossy path of the field lines through the air.
  • the magnetic field lines are real energy lines that lose much of their energy in the air as they move away from the source. Iron has the property to conduct the flow much better than the medium air.
  • Ironless motors and generators are furthermore known from DE-A-103 51 815 and DE-A-103 35 688.
  • brushless motors there are a variety of published protective rights, especially in the field of small engines.
  • brushless electric motors are known from US-B-3 988 654 and DE-A-10 2005 013, respectively.
  • Such motors can be operated with a control loop.
  • the coil elements of the stator winding are formed as flat body coils having at least one flat winding element consisting of in an (imaginary) plane adjacent cable trains, in which at least their ends at least partially connected to each other, at least a portion of the flat-body coils are adjacent to each other at least part of their volume embedded in a StatorbuchStoff moments and two types of magnetic elements are present, namely in the radial direction south-north-polarized and in the north-south polarity in the radial direction, which alternately in Peripheral direction of the magnetic ring are arranged.
  • an assignment is selected in which a part or the entirety of flat body coils is arranged in the stator winding element so that about 0.75 to 1.5 flat body coils each face a magnetic element, so that the ratio of magnet to winding between 3: 4 to 4 : 3.
  • the motor is characterized by compact design, low weight, high efficiency, low environmental impact, high strength, short field lines and closed field line course.
  • the choice of materials results in low production costs.
  • Another advantage is that with low power consumption, a high starting torque is generated.
  • the development result is, for example, a plastic motor with an injection-molded stator as a base part and a rotor made of magnet compound, which is characterized in that the stator and rotor form a construction unit without iron.
  • the motor can optionally be operated without sensors with commutation or else with sensors and thus for precision positioning.
  • the stator that is a mixture of linear and torque motor.
  • the stator around which the rotor turns is equipped with standing windings. Another advantage is that operation without a sensor is possible, that is, that current measurements are used to determine the position.
  • Another advantage is that the production technology differs from the conventional, that is, no wound coils, no metal housing, but punching technology and injection molding technology can be used in principle.
  • the annular structure of the rotor and stator do not require special bearings.
  • a significant advantage is that the engine is made without iron. This is a plastic motor, which is in problematic areas such. B. can be installed in cavities of vehicles in which moisture, dirt, high temperature fluctuations and the like. to rule.
  • the electric motor is preferably characterized in that the rotor consists of an inner and an outer magnetic ring, which are held on a first support member so that between them, leaving an inner and an outer air gap, the stator is arranged with a Statorwicklungselement.
  • the rotor consists of a magnetic ring which is held on a second support member so that the magnetic ring is disposed leaving an inner and an outer air gap between two stator winding elements of the stator.
  • a further variant is characterized in that the rotor consists of two magnetic ring elements which are held on a carrier element so that they are each arranged leaving four inner stator and one outer air gap between four stator winding elements of the stator.
  • the engine can also be wheel or disc motor.
  • the disc motor can, for. B. a micromotor with the dimensions 5x2mm be designed as a disc.
  • the opposite magnet rings ensure a straight magnetic field course. In addition, short field lines are possible.
  • the magnetic elements may consist of magnetizable materials which are formed by plastic-bonded material and which can be alternately magnetized as south-north and north-south-poled magnetic elements.
  • the shaped magnetic ring element is very hard and brittle, so that its strength suffers. Therefore, another ring made of plastic is formed around the magnetic ring element. This structure is manufactured in a two-component injection molding process.
  • the magnetic ring can consist of the following magnetic materials:
  • Neodymium Iron Boron NdFeB
  • the invention also relates to a coil element according to the subclaims 14 to 21.
  • the flat winding elements may be formed in pairs opposite each other, that a winding end of a first flat winding element can be connected to a winding end of a second flat winding element.
  • the winding start of a second flat winding element of a first flat winding element pair can be connected to the winding start of a folded or flat winding element of a second flat winding element pair.
  • the connection can be made by soldering, ultrasonic welding, pressing.
  • At least one insulating element can be arranged between the flat winding elements.
  • the insulating member may be a sheet member or an insulating varnish, which by dipping, spraying, rolling, printing and / or the like. is applied. If a film is used, the thin film material also presses into the spaces between the cable runs when compressed.
  • the film may be about 1 to 150 microns thick.
  • the cable runs of the flat winding elements may be made of a conductive material, such. As copper, brass, aluminum, tin, zinc, silver, gold, their mixtures and Compounds and the like be.
  • the cable runs can have a thickness of approx. 0.1 to 2.5 mm.
  • the flat winding element pairs may be formed as a geometric configuration.
  • the geometric configuration of the flat winding element pairs may be a square, a rectangle, a hexagon, an oval, a circular shape, an octagon, or a trapezoid.
  • the metal foil used for the flat winding elements may preferably have a thickness between 0.1 to 2.5 mm. If the conditions of use require other thicknesses, these should be used.
  • insulating elements are introduced; the winding package is joined together to form a flat body coil element. In this case, the package can be pressed, so that in a simple manner an insulation between the flat windings and the conductor tracks is brought when a film is used.
  • FIG. 2 shows a partial section B of the rotor and stator of a DC motor according to FIG. 1
  • FIG. 3 shows a star connection of flat body coils of a stator winding element according to FIG. 1 in a diagrammatically represented side view
  • FIG. 4 shows a double flat element for a flat body coil according to FIG. 3 in a schematically illustrated plan view, FIG.
  • Fig. 5 to a flat body coil element connected double flat elements in a schematic, perspective view sideways seen from above and
  • FIG. 6 shows a further embodiment of a brushless DC motor in a schematic sectional view seen from the side
  • Fig. 7 is a schematic representation of FIG. 1 with a flat winding element in detail.
  • a brushless DC motor In Fig. 1, a brushless DC motor is shown. It consists of a rotor 1 and a stator 2, which are rotatable relative to each other and separated by one or more air gaps 22, 23.
  • the rotor 1 has two adjacent magnetic rings 11, 12, which are arranged on a carrier element (not shown).
  • the inner magnetic ring 11 terminates with an inner ring 14, the outer magnetic ring 12 with an outer ring 13.
  • Both magnetic rings 11, 12 are produced in single or multi-component injection molding, such. B. first, a construction ring made of plastic - to increase the strength even with inlaid metal - and then the magnetic material.
  • Neodymium Iron Boron NdFeB
  • stator winding element 21 which consists of coil elements in the form of flat body coils 21.1, 21.2, 21.3, as shown in FIGS.
  • the coil elements are embedded in a stator body 24 made of plastic.
  • Fig. 3 shows a possible interconnection of the flat-body coils 21.1, 21.2, 21.3 as a star connection.
  • the star point 8 is led out and the U-winding with 5, the V-winding with 6 and the W-winding with 7.
  • a delta connection can also be realized.
  • the coil elements can also be controlled individually.
  • a flat-body coil 21.1 consists of a plurality of interconnected flat winding elements 3, 4, as shown in Fig. 4. Although in the following terms from the conventional coil manufacturing technique such as “winding”, “winding”, “fall” do not have to be strictly expert, they can best make the relationship from the known to the new.
  • the flat winding elements 3, 4 actually no “windings", which are "wound up”. Rather, these are two in a plane opposing plurality of circuit traces 31.1, ..., 31. n, 41.1, ..., 41. n, starting from a winding start 32, 42 spaced apart from each other and in a rectangular shape a winding end 33, 43 are guided. Another special feature is that the winding ends 33, 43 are connected to a folding 33/43. This is a flat winding pair 3, 4, which looks like an 8 in the plan view. Of course, other geometric shapes such as a double hexagon or the like. possible.
  • the flat winding elements 3, 4 are folded in such a way that a flat winding element 3 comes to rest on a flat winding element 4.
  • the folding 33/43 is the plane of rotation or also fulcrum and comes to lie up. Of course, the folding direction can also be reversed.
  • winding start 42 of the second flat winding element 4 is connected to the winding start 32 of the first flat winding element 3 of the following flat winding element pair.
  • the conductor tracks 31.1, ..., 31. n, 41.1, ..., 4l.n the flat winding pairs 3, 4 part of the respective coil element and thus determine the desired number of turns.
  • the joining can be a pressing.
  • the pressing pressure can be varied accordingly. Regardless of the type of assembly is made possible by selecting appropriate materials that the insulating material penetrates into the distances between the cable runs 31.1, ..., 41.1 and the flat winding elements against each other.
  • the motors can be manufactured in micro construction.
  • a coil package of a coil element can here z. B. have a height of about 10 to 15 mm and a width of about 5 to 10 mm. They can also be produced in macro construction.
  • FIG. 6 shows a further embodiment 100 of a brushless DC motor.
  • the stator has two opposing paired Statorwicklungsele- 21, which are each held by three stator bodies 24 made of plastic.
  • the stator bodies are molded onto a base element.
  • the rotor 1 has a carrier element 115 on which a magnetic ring 11 and radially spaced therefrom a second magnetic ring 12 are arranged. These parts are manufactured in a two-component injection molding process. Both magnetic rings 11, 12 move in the limited by the stator winding elements 21 trenches.
  • This motor 100 is a hollow shaft motor. In the resulting space 26, a gear, a shaft or the like. be recorded.
  • soot pigments, Teflon particles or the like can be dispersed in successive surfaces of the rotor and the stator. As a result, a "maintenance-free lubrication" is realized.
  • the engine Due to its design, its material and its size, the engine can be used wherever long transit times without accessibility are required.
  • the film elements can be about 5 microns thick.
  • the magnetic rings 11, 12 and the carrier element 15 holding them are injected to the rotor 1.
  • the shaped magnetic ring is very hard and brittle, so that its strength suffers. Therefore, another ring made of plastic is formed around the magnetic ring. This construction is made in a two-component injection molding process. Subsequently, the magnetizable substances are magnetized to permanent magnets.
  • Fig. 7 shows schematically the DC motor of FIG. 1 with stator 2 and rotor 1.
  • the stator 2 is a flat winding element 3 removed and shown enlarged.
  • the folded flat-body coils 21 can be seen.
  • At least one insulating element can be arranged between the flat winding elements.
  • the insulating element can be a film element, an insulating varnish, by dipping, spraying, rolling, printing and / or the like. be applied. Even a screen printing is possible. If a film is used, the thin film material also presses into the spaces between the cable runs when compressed.
  • the insulating film may be about 0.05 to 150 microns thick.
  • the cable runs of the flat winding elements may be made of a conductive material, such. As copper, brass, aluminum, tin, zinc, silver, gold, their mixtures and compounds and the like. Be.
  • the cable runs can have a thickness of approx. 0.05 to 2.5 mm.
  • the flat winding element pairs may be formed as a geometric configuration.
  • the geometric configuration of the flat coil element pairs may be square, rectangular, hexagonal, oval, round, octagonal, trapezoidal, or the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Windings For Motors And Generators (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Brushless Motors (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

L'invention concerne un moteur électrique comprenant un rotor (1) et un stator (2), qui présente au moins un élément d'enroulement statorique (21) avec des éléments de bobine, le rotor et le stator (1, 2) pouvant être déplacés l'un par rapport à l'autre et étant maintenus à distance mutuelle par un entrefer (23, 24). Les éléments de bobine de l'élément d'enroulement statorique (21) se présentent sous forme de bobines à corps plat (21,1, 21,2, 21,3), qui présentent des éléments d'enroulement plats (3, 4), composés de sections de câble juxtaposées en un plan, dont au moins les extrémités (33, 43) sont interconnectées au moins en partie. Les bobines à corps plat (21.1, 21.2, 21.3) sont noyées à plat, les unes à côté des autres, dans un corps statorique en matière plastique (24). Il est prévu en outre dans le rotor, deux types d'éléments magnétiques (12.1, 12.2) notamment des éléments polarisés sud-nord dans le sens radial et des éléments polarisés nord-sud dans le sens du rayon, lesdits élément étant disposés de manière alternée dans le sens périphérique du noyau magnétique. Les bobines à corps plat (21.1; 21.2) sont de préférence disposées dans l'élément d'enroulement statorique (21), de sorte qu'approximativement 0,75 à 1,5 bobines à corps plat (21.1; 21;2) se trouvent opposées dans chaque cas à un élément magnétique (12.1; 12.2).
EP08707367A 2007-01-29 2008-01-29 Moteur électrique et élément de bobine pour un tel moteur Withdrawn EP2115856A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710004359 DE102007004359A1 (de) 2007-01-29 2007-01-29 Kunststoff-Elektromotor
PCT/EP2008/000665 WO2008092630A2 (fr) 2007-01-29 2008-01-29 Moteur électrique et élément de bobine pour un tel moteur

Publications (1)

Publication Number Publication Date
EP2115856A2 true EP2115856A2 (fr) 2009-11-11

Family

ID=39563873

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08707367A Withdrawn EP2115856A2 (fr) 2007-01-29 2008-01-29 Moteur électrique et élément de bobine pour un tel moteur

Country Status (3)

Country Link
EP (1) EP2115856A2 (fr)
DE (2) DE102007004359A1 (fr)
WO (1) WO2008092630A2 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007004359A1 (de) 2007-01-29 2008-07-31 Ortloff, Helene Kunststoff-Elektromotor
DE202008004028U1 (de) 2008-03-20 2009-07-30 Söhnergroup GmbH Flachspule
DE202008004102U1 (de) 2008-03-25 2009-08-06 Söhnergroup GmbH Scheibenartige Flachspule
DE102009032389A1 (de) 2008-07-08 2010-01-14 Ortloff, Helene Kunststoff-Flachmotor mit hochfester stehender Metallfolienwicklung
DE202008016005U1 (de) * 2008-12-01 2009-08-06 Ortloff, Helene Kunststoff-Getriebe-Motor
DE102009024959A1 (de) 2009-06-12 2010-12-16 Monika Kirchhoff Kettenblatt-Antrieb für muskelkraft unterstützte ein- und mehrspurige Fahrzeuge
DE202009015390U1 (de) 2009-11-13 2010-02-25 Söhnergroup GmbH Kunststoffgleichstrommotor
DE102010060482B4 (de) 2010-11-10 2017-07-13 Binova Gmbh Elektrischer Scheibenläufermotor und Elektrofahrrad oder Pedelec mit einem Scheibenläufermotor

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5092405A (fr) 1973-12-21 1975-07-23
US4446393A (en) * 1976-10-29 1984-05-01 The Globe Tool & Engineering Company Dynamoelectric field assembly and winding therefor
JPH036149Y2 (fr) 1981-01-13 1991-02-15
US4633149A (en) * 1985-09-10 1986-12-30 Buehler Products, Inc. Brushless DC motor
NZ232333A (en) * 1990-02-01 1993-12-23 Cadac Holdings Ltd Motor stator wound with high permeability material.
DE4414527C1 (de) * 1994-04-26 1995-08-31 Orto Holding Ag Elektronisch kommutierte Gleichstrommaschine
US5945766A (en) * 1996-01-18 1999-08-31 Amotron Co., Ltd. Coreless-type BLDC motor and method of producing stator assembly having axial vibration attenuation arrangement
US6222437B1 (en) * 1998-05-11 2001-04-24 Nidec America Corporation Surface mounted magnetic components having sheet material windings and a power supply including such components
DE60100948D1 (de) * 2001-06-21 2003-11-13 Magnetek Spa Rechteckige Flachspulen sowie induktives Bauelement, welches mit einer oder mehreren dieser Spulen hergestellt wird
DE10208564A1 (de) 2002-02-27 2003-09-11 Joerg Bobzin Luftspule für rotierende elektrische Maschinen und deren Herstellungsverfahren
JP4803525B2 (ja) 2004-04-12 2011-10-26 株式会社一宮電機 ブラシレスモータ用ロータ、及びブラシレスモータ
DE102005048570A1 (de) 2005-10-10 2007-04-12 Ortloff-Technologie Gmbh Motorgetriebe mit Torquemotor und Spannungswellgetriebe
DE102007004359A1 (de) 2007-01-29 2008-07-31 Ortloff, Helene Kunststoff-Elektromotor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008092630A3 *

Also Published As

Publication number Publication date
WO2008092630A3 (fr) 2009-08-27
DE102008032112A1 (de) 2010-01-14
WO2008092630A2 (fr) 2008-08-07
DE102007004359A1 (de) 2008-07-31

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