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DE29718421U1 - Electric motor - Google Patents

Electric motor

Info

Publication number
DE29718421U1
DE29718421U1 DE29718421U DE29718421U DE29718421U1 DE 29718421 U1 DE29718421 U1 DE 29718421U1 DE 29718421 U DE29718421 U DE 29718421U DE 29718421 U DE29718421 U DE 29718421U DE 29718421 U1 DE29718421 U1 DE 29718421U1
Authority
DE
Germany
Prior art keywords
poles
electric motor
stator
recesses
coils
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
DE29718421U
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 AG, Siemens Corp filed Critical Siemens AG
Priority to DE29718421U priority Critical patent/DE29718421U1/en
Publication of DE29718421U1 publication Critical patent/DE29718421U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12Stationary parts of the magnetic circuit
    • H02K1/14Stator cores with salient poles
    • H02K1/146Stator cores with salient poles consisting of a generally annular yoke with salient poles
    • H02K1/148Sectional cores
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K41/00Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02Linear motors; Sectional motors
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/02Details of the magnetic circuit characterised by the magnetic material
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K3/00Details of windings
    • H02K3/04Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/18Windings for salient poles

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Glass Compositions (AREA)
  • Valve Device For Special Equipments (AREA)

Description

Die Erfindung betrifft einen Elektromotor, insbesondere Linearmotor mit einem aus einzelnen Statorblechen gebildeten Statorblechpaket, wobei die Statorbleche Aussparungen aufweisen, in die Pole einsetzbar sind.The invention relates to an electric motor, in particular a linear motor with a stator lamination stack formed from individual stator laminations, wherein the stator laminations have recesses into which the poles can be inserted.

Die DE-42 41 085 Al beschreibt einen Stator für Linearmotoren mit einem aus einzelnen Statorblechen gebildeten Statorblechpaket, wobei die Statorbleche Nuten zur Aufnahme von aus
Drähten vorgefertigten Formspulen aufweisen, die durch entlang
wenigstens einer Seite des Statorblechpaketes beabstan-
DE-42 41 085 Al describes a stator for linear motors with a stator lamination package formed from individual stator laminations, wherein the stator laminations have grooves for receiving
Wires prefabricated coils that are passed through
at least one side of the stator core

dete Stege und an den freien Enden dieser Stege sich zur Seite erstreckende, die Nuten jeweils teilweise überragende Zähne gebildet sind, wobei diese Stege Aussparungen aufweisen,
in die die Zähne aufweisende Zahnkopfelemente automatisch
verriegelnd einschiebbar sind.
formed webs and teeth extending to the side at the free ends of these webs, each partially projecting beyond the grooves, said webs having recesses,
into which the teeth have tooth head elements automatically
can be inserted and locked.

Durch diese Anordnung können Formspulen vor Ort in einer relativ
einfachen Weise in den Nuten des Stators plaziert werden,
ohne daß Biegeoperationen an den Formspulen erforderlich sind. Nachteilig dabei ist, daß durch die vielen Schlitze
This arrangement allows preformed coils to be produced on site in a relatively
easily placed in the slots of the stator,
without the need for bending operations on the coils. The disadvantage is that the many slots

zwischen Zahnkopfelementen und Statorblechpaket ein hoher magnetischer Widerstand auftritt.a high magnetic resistance occurs between the tooth tip elements and the stator core.

Der Erfindung liegt die Aufgabe zugrunde, gattungsgemäße Motoren
bezüglich der Polbefestigung fertigungstechnisch zu optimieren, ohne daß dabei Wirkungsgradverluste des Motors auftreten.
The invention is based on the object of developing generic engines
to optimize the manufacturing process for pole fastening without causing any loss of motor efficiency.

Die Lösung der gestellten Aufgabe gelingt dadurch, daß die
Aussparungen trapezförmig sind und sich in Richtung des Statorblechpaketes
verjüngen, wobei die eingesetzten Pole mit
The solution to the problem is achieved by
Recesses are trapezoidal and extend in the direction of the stator core
tapered, whereby the inserted poles are

GR 97 G 3777GR 97 G 3777

formschlüssigen und/oder reibschlüssigen und/oder stoffschlüssigen Befestigungsmitteln fixiert sind und dabei die zu Zahnspulen entarteten vorgefertigten Spulen in ihrer Position halten.
5
positive and/or frictional and/or material-locking fastening means and thereby hold the prefabricated coils degenerated into toothed coils in their position.
5

Trapezförmige Aussparungen sind fertigungstechnisch leicht herzustellen, und durch die in Richtung des Statorblechpakets verjüngende Form stellt sich eine Selbstjustage der Pole ein. Es stellt sich ein magnetischer Leitwert ein, der mit einer einstückigen Kombination von Pol und Statorblechpaket vergleichbar ist. Durch Sperrstifte wird eine gute reibschlüssige Verbindung zwischen Statorblechpaket und Pol hergestellt. Außerdem wird vorallem auf der dem gegenüber den Sperrstift liegenden Schenkel der trapezförmigen Aussparungen ein ausgezeichneter magnetischer Leitwert erreicht. Es können sowohl geblechte, als auch massive Pole aus elektrisch isolierendem und magnetisch gut leitendem Material eingesetzt werden, wie z.B. Eisencompositwerkstoff. In Verbindung mit vorgefertigten Zahnspulen, die durch die Pole in ihrer Lage fixiert sind wird die Herstellung wesentlich vereinfacht.Trapezoidal recesses are easy to manufacture, and the shape tapering towards the stator laminated core allows the poles to adjust themselves. The result is a magnetic conductivity that is comparable to a one-piece combination of pole and stator laminated core. Locking pins create a good frictional connection between the stator laminated core and the pole. In addition, an excellent magnetic conductivity is achieved, particularly on the side of the trapezoidal recesses opposite the locking pin. Both laminated and solid poles made of electrically insulating and magnetically highly conductive material can be used, such as iron composite material. In conjunction with prefabricated tooth coils that are fixed in position by the poles, production is made much easier.

Die Erfindung wird anhand eines möglichen Ausführungsbeispiels näher erläutert. Es zeigt:The invention is explained in more detail using a possible embodiment. It shows:

FIG 1 einen Pol, der durch einen Sperrstift im Statorblechpaket fixiert ist,FIG 1 a pole which is fixed in the stator core by a locking pin,

FIG 2 einen Pol, der durch Kleber im Statorblechpa ket fixiert ist.FIG 2 a pole which is fixed by adhesive in the stator lamination package.

FIG 1 zeigt ein Statorblechpaket 1 eines Linearmotors, in dem in eine im wesentlichen zur Polachse achsensymmetrischen, trapezförmigen Aussparung 2 ein geblechter Pol 3 mittels eines Sperrstiftes 4 befestigt ist. Dadurch wird außerdem eine diesem Pol 3 zugeordnete, vorgefertigte Polspule,5 fixiert.FIG 1 shows a stator laminated core 1 of a linear motor in which a laminated pole 3 is secured by means of a locking pin 4 in a trapezoidal recess 2 that is essentially axially symmetrical to the pole axis. This also fixes a prefabricated pole coil 5 assigned to this pole 3.

GR 91 G 3777 ·· &khgr;\\ *\ ·";GR 91 G 3777 ·· &khgr;\\ *\ ·";

FIG 2 zeigt ebenfalls ein Statorblechpaket 1 eines Linearmotors, in dem in eine im wesentlichen zur Polachse achsensymmetrischen, trapezförmigen Aussparung 2, ein geblechter Pol 3 mittels einer Klebverbindung 6 befestigt ist. Dadurch wird ebenfalls eine vorgefertigte Polspule 5 fixiert.FIG 2 also shows a stator laminated core 1 of a linear motor, in which a laminated pole 3 is fastened by means of an adhesive connection 6 in a trapezoidal recess 2 that is essentially axially symmetrical to the pole axis. This also fixes a prefabricated pole coil 5.

Claims (4)

1. Elektromotor, insbesondere Linearmotor mit einem aus einzelnen Statorblechen gebildeten Statorblechpaket (1) und vorgefertigten Spulen (5), wobei die Statorbleche Aussparungen (2) aufweisen, in die Pole (3) einsetzbar sind, dadurch gekennzeichnet, daß in die Aussparungen (2) trapezförmig sind und sich in Richtung des Statorblechpaketes (1) verjüngen, wobei die eingesetzten Pole (3) mit formschlüssigen und/oder reibschlüssigen und/oder stoffschlüssigen Befestigungsmitteln fixiert sind und dabei die zu Zahnspulen entarteten vorgefertigten Spulen (5) in ihrer Position halten.1. Electric motor, in particular linear motor with a stator lamination stack (1) formed from individual stator laminations and prefabricated coils (5), whereby the stator laminations have recesses (2) into which poles (3) can be inserted, characterized in that the recesses (2) are trapezoidal and taper in the direction of the stator lamination stack (1), whereby the inserted poles (3) are fixed with positive and/or frictional and/or material-locking fastening means and thereby hold the prefabricated coils (5) degenerated into tooth coils in their position. 2. Elektromotor nach Anspruch 1,, dadurch gekennzeichnet , daß die Pole (3) durch Sperrstifte (4) und/oder Kleber (6) in ihren bezüglich ihrer Polachse achsensymmetrischen Aussparungen (2) fixiert sind.2. Electric motor according to claim 1, characterized in that the poles (3) are fixed in their recesses (2) which are axially symmetrical with respect to their pole axis by locking pins (4) and/or adhesives (6). 3. Elektromotor nach Anspruch 1 oder 2, , dadurch gekennzeichnet, daß die Pole (3) aus3. Electric motor according to claim 1 or 2, characterized in that the poles (3) are made of geblechten Paketen oder aus ganzstückigem Material bestehen, das magnetisch gut leitfähig, aber elektrisch isolierend wirkt.laminated packages or made of a single piece of material that is magnetically conductive but electrically insulating. 4. Elektromotor nach Anspruch 3,, dadurch gekennzeichnet, , daß die ganzstückigen Pole (3) aus Eisencompositwerkstoff bestehen.4. Electric motor according to claim 3, characterized in that the integral poles (3) consist of iron composite material.
DE29718421U 1997-10-16 1997-10-16 Electric motor Expired - Lifetime DE29718421U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29718421U DE29718421U1 (en) 1997-10-16 1997-10-16 Electric motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29718421U DE29718421U1 (en) 1997-10-16 1997-10-16 Electric motor

Publications (1)

Publication Number Publication Date
DE29718421U1 true DE29718421U1 (en) 1997-12-11

Family

ID=8047349

Family Applications (1)

Application Number Title Priority Date Filing Date
DE29718421U Expired - Lifetime DE29718421U1 (en) 1997-10-16 1997-10-16 Electric motor

Country Status (1)

Country Link
DE (1) DE29718421U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004058369A1 (en) * 2004-12-03 2006-06-08 Daimlerchrysler Ag Linear motor e.g. synchronous linear motor, unit, has teeth arranged along longitudinal extension of sheet metal body, where metal body is formed from partial body and another partial body comprising teeth

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3740600A (en) * 1971-12-12 1973-06-19 Gen Electric Self-supporting coil brace
US5057733A (en) * 1988-11-10 1991-10-15 Matsushita Electric Industrial Co., Ltd. Modular coil cores for electric motor
DE4241085A1 (en) * 1991-12-16 1993-06-17 Blum Gmbh

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3740600A (en) * 1971-12-12 1973-06-19 Gen Electric Self-supporting coil brace
US5057733A (en) * 1988-11-10 1991-10-15 Matsushita Electric Industrial Co., Ltd. Modular coil cores for electric motor
DE4241085A1 (en) * 1991-12-16 1993-06-17 Blum Gmbh

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004058369A1 (en) * 2004-12-03 2006-06-08 Daimlerchrysler Ag Linear motor e.g. synchronous linear motor, unit, has teeth arranged along longitudinal extension of sheet metal body, where metal body is formed from partial body and another partial body comprising teeth
DE102004058369B4 (en) * 2004-12-03 2008-07-17 Daimler Ag Primary part of a linear motor

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 19980129

R163 Identified publications notified

Effective date: 19980311

R150 Utility model maintained after payment of first maintenance fee after three years

Effective date: 20010207

R151 Utility model maintained after payment of second maintenance fee after six years

Effective date: 20040129

R158 Lapse of ip right after 8 years

Effective date: 20060503