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WO2013029677A1 - Dispositif à manchons pour un moteur électrique à segments - Google Patents

Dispositif à manchons pour un moteur électrique à segments Download PDF

Info

Publication number
WO2013029677A1
WO2013029677A1 PCT/EP2011/065015 EP2011065015W WO2013029677A1 WO 2013029677 A1 WO2013029677 A1 WO 2013029677A1 EP 2011065015 W EP2011065015 W EP 2011065015W WO 2013029677 A1 WO2013029677 A1 WO 2013029677A1
Authority
WO
WIPO (PCT)
Prior art keywords
bolt
sleeve
cuff
parts
electrical machine
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
PCT/EP2011/065015
Other languages
German (de)
English (en)
Inventor
Jens Makuth
Markus Reinhard
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 PCT/EP2011/065015 priority Critical patent/WO2013029677A1/fr
Publication of WO2013029677A1 publication Critical patent/WO2013029677A1/fr
Anticipated expiration legal-status Critical
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
    • H02K1/14—Stator cores with salient poles
    • H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
    • H02K1/148—Sectional cores
    • 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
    • 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 present invention relates to a sleeve device for a segmented electric machine.
  • ⁇ of the present invention relates to a entspre ⁇ sponding segmented electrical machine.
  • Plastics and soft ferrites, some of which are already in use.
  • the advantages lie in the simple processing of these materials (eg injection molding technology, compression molding) and in the high electrical resistance, which allows a high supply frequency and thus high speeds, since eddy currents are effectively suppressed.
  • new forms can be implemented with the mentioned magnetic materials.
  • the yoke is subdivided into several segments. If the machine has teeth, the yoke is split so that each segment has a proportional yoke segment.
  • motors made of SMC and ferrite are suitable for this technique.
  • the teeth can be easily fitted with a single-toothed winding ("toothed coil technique") After the winding has been applied, the individual segments can be joined together to form a complete motor stand (stator)
  • the segments can be pressed together in various ways: Tubes , Housing, Bandage, etc.
  • the object of the present invention is thus to propose a structurally simple mounting device for segmented electrical machines.
  • the plurality of cuff parts are joined together to form a closed ring by
  • a bolt is arranged around which grip the hooks of the two adjacent sleeve parts, so that the sleeve parts in the circumferential direction of the ring positively miteinan ⁇ are connected.
  • the cuff device thus only has a plurality of cuff parts and bolts, which the
  • all parts of the collar of the ring are the same ⁇ formed. So if all parts of the sleeve have an identical shape, they are cheaper to manufacture and also have advantages in logistics.
  • the number of cuff parts forming the closed ring can be two. This is especially for small machines advantage, as can the electric Ma ⁇ machine installed with a few simple steps.
  • the bolt has a tool holder at one of its ends.
  • This may for example be a Schrau ⁇ benkopf or a hexagon socket, so that the bolt can be reliably turned on with the tool play as ⁇ .
  • the bolt may have a thread or a bayonet closure element or the like. This has the advantage that the bolt can be fastened to a mounting surface, or that another component can be fastened to it with simple rotary motion.
  • the bolt may have a chamfer at one of its ends. This leads to the advantage that the bolt can be easily inserted during assembly in the interstices, which are formed by the hooks of two adjacent mounting parts.
  • the bolt may have a groove or a waisted area. The groove and the waisted area allow a positive fixation on the sleeve parts.
  • segmented electric machine whose segments are clamped in an abovementioned sleeve device.
  • the segments may be parts of a segmented engine.
  • the stator not only the stator but also, for example, the external rotor of an electrical machine can be segmented and held together by the sleeve device.
  • the segmented electric machine with the bolt or the bolt is attached to a carrier. So that the bolts have not only the radio ⁇ tion of holding together the cuff device, but also the function of fixing the electrical machine to another component.
  • a bearing, a frequency converter, a sensor or an encoder, etc. may be attached to the bolt or to the bolt. This additionally gives the bolt the functionality of holding another component, which is necessary for the operation of the electric machine.
  • FIG. 1 shows the basic structure of the Verriegelungsmechanis ⁇ mechanism of a sleeve device.
  • FIG. 2 shows a concrete embodiment of a sleeve device with two identical sleeve parts
  • segmented electrical machines have numerous advantages in the production and in particular also in the winding of individual coils of the magnetic active parts.
  • the following embodiments may refer to any types of such segmented electrical machines (particularly motors as well as generators).
  • the rotor can only be stored on one side, as it must be possible to pull the rotor at any time.
  • the axis is perpendicular to these spindles.
  • Price pressure in textile machinery is very high. Therefore, highly efficient and made of low-cost materials SMC / ferrite motors are particularly suitable. Accordingly, the mounting of the stand must also be installed quickly and be very cost-effective.
  • This is realized by a multi-part sleeve device (see FIG. 2).
  • the bolt (s) for closing the sleeve device preferably serve as attachment to the surrounding structure at the same time.
  • a sleeve device can be a solid packaging, for example, the stator segments of a Mo ⁇ gate reach. The tensile strength of the bracket around the Seg ⁇ ments can be easily and accurately by the
  • the screws / bolts integrated in the sleeve device can be designed to be captive and used to fasten the stator to a construction. Over the length of the bolt can then be the distance between, for example, the stator and set a mounting surface.
  • a small frequency converter or an opti ⁇ onalen encoder via the integrated bolts, as shown in more detail below.
  • the cuff device can also be used to realize efficient heat dissipation by choosing suitable materials.
  • the sleeve device has according to the schematic diagram of FIG. 1 at least two sleeve parts 1, 2.
  • FIG. 1 shows only a section of the collar device forming a closed ring in the region of a connecting section whose central element is a bolt 3.
  • each part has bent-over ends 4, 5, each having a hook bil ⁇ .
  • the sleeve parts are placed, for example, around the stator to be molded for mounting the motor segments.
  • the sleeve portions 1, 2 together so that the hook at ⁇ bent ends into each other according to Fig. 1
  • the bent-over ends 4, 5 each surround the bolt 3.
  • the bolt 3 clamps the two adjacent sleeve parts against the stator. Due to the diameter of the bolt, the tensile force F can be adjusted.
  • the bolt 3 may additionally, as mentioned, serve as a fastening element for fastening, for example, the stator on a carrier or a mounting surface.
  • On top of the bolt 3 can have a form-fitting tool holder (z. B. Allen, hexagonal bolt head, etc.) Availability checked ⁇ gene, which is explained below in connection with FIG 3 in greater detail.
  • the underside of the bolt should have a thread, a Baj onettver gleich or a similar Vor ⁇ direction for attachment. This device engages in the design environment in a corresponding counterpart. For example, need when using threaded bolts in the mounting surface threaded holes may be present.
  • the bolts 3 can be provided with a chamfer and / or countersunk the holes.
  • the material of the sleeve must either be sufficiently flexible (thin sheet metal, plastic, reinforced textile tape) or the segments must be approximated to the radius of the finished motor.
  • FIG. 1 speaks the shape of the sleeve parts 1, 2 the personally twistmes ⁇ ser of the assembled stator.
  • the connecting section 6 in the region of the bolt 3 is designed here such that the finished assembled sleeve device has a circular inner contour 7.
  • one man ⁇ schettenteil 1 has a fork-like shape with two teeth 7 and 8.
  • the inner tooth 7 extends in the circumferential direction of the cuff device approximately to the middle of the bolt 3. It forms the inner contour of the sleeve device.
  • the outer tooth 8 surrounds the bolt 3 in about half its circumference.
  • the curved end 9 of the second sleeve part 2 fits between the two teeth 7 and 8 of the first sleeve part 1.
  • This bent end 9 likewise surrounds the bolt about its half circumference.
  • the outer tooth 8 of the first sleeve part 1 is so ge ⁇ forms that results in a positive connection together with the bolt 3 in the circumferential direction of the sleeve device.
  • the two sleeve parts 1 and 2 are thus coupled firmly together in the circumferential direction.
  • the two sleeve parts 1 and 2 for example, in the axial direction of the bolt 3, which also corresponds to the axial direction of the annular sleeve device and thus the axial direction of the electric machine, are joined together.
  • the bent ends 4, 5 or 9 together with the teeth 7, 8 shaped so that they can also be plugged into one another in the circumferential direction or can be screwed.
  • the complete engine, ie the assembled segments with the sleeve device are usually not joined until the assembly of the textile machine, for example.
  • the Mo ⁇ tor is instead made as an assembly before and ge provides ⁇ . Therefore, it is important to make sure that the structure does not fall apart. This can be ensured by the bolt (s).
  • FIG. 3 a specific embodiment of a threaded bolt 3 is shown, as it can be used for a cuff device according to the invention.
  • the bolt 3 has a head 10, which can be designed, for example, with an in-hex. At the other end, it has an external thread 11, which terminates at its outermost end in a chamfer 12. Between the head 10 and the thread 11 there is an area 13 of reduced cross-section, ie the pin 3 is fitted at this point, and the pin 3 is captive by this area 13 of reduced cross-section if the collar parts 1, 2 surround the pin 3 only in this area greatly exaggerated in FIG 3 for demonstration purposes.
  • Another way to secure the bolt would be a small circular groove on the bolt 3.
  • a specially provided plastic nose can there be snapped at one of the ⁇ schettenmaschine Man.
  • the bolt 3 is gesi ⁇ chert and can still be rotated.
  • the head 10 is the point of application for tightening the screw.
  • the thread 11 allows the attachment of the complete Sta ⁇ sector on a mounting surface. Over the length of the bolt 3, the distance between the stator and mounting surface can be adjusted. This is necessary to z. B. for the winding head, the Warehouse, a dealer, etc. to create space.
  • the bearing can then be pressed either with the cuff or sleeve device, or it is, as indicated, clamped between Ak ⁇ tivteil and the design environment.
  • a frequency converter and, if necessary, an encoder could also be attached with the same bolt 3.
  • the inventive Fas ⁇ sung the segments of the electric machine with the cuff ⁇ tenvoriques allows, for example, to assemble the entire stand safely.
  • bearings, frequency converters, sensors, encoders or the like can also be attached to the sleeve device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

L'invention vise à simplifier l'assemblage d'un moteur électrique à segments. A cet effet, l'invention concerne un dispositif à manchons comportant plusieurs éléments manchons (1, 2) présentant sur leurs extrémités respectivement un crochet (8, 9). La pluralité d'éléments manchons (1, 2) est assemblée sous forme d'anneau fermé du fait qu'un boulon (3) est disposé entre deux éléments manchons respectifs, les crochets (8, 9) des deux éléments manchons (1, 2) entourant le boulon de telle manière que les éléments manchons (1 et 2) sont reliés mutuellement par complémentarité de forme dans la direction périphérique de l'anneau.
PCT/EP2011/065015 2011-08-31 2011-08-31 Dispositif à manchons pour un moteur électrique à segments Ceased WO2013029677A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2011/065015 WO2013029677A1 (fr) 2011-08-31 2011-08-31 Dispositif à manchons pour un moteur électrique à segments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2011/065015 WO2013029677A1 (fr) 2011-08-31 2011-08-31 Dispositif à manchons pour un moteur électrique à segments

Publications (1)

Publication Number Publication Date
WO2013029677A1 true WO2013029677A1 (fr) 2013-03-07

Family

ID=44759655

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/065015 Ceased WO2013029677A1 (fr) 2011-08-31 2011-08-31 Dispositif à manchons pour un moteur électrique à segments

Country Status (1)

Country Link
WO (1) WO2013029677A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4560884A1 (fr) * 2023-11-21 2025-05-28 Hilti Aktiengesellschaft Stator à dents enfichables

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE969387C (de) * 1955-05-19 1958-05-29 Lorenz C Ag Gehaeuseloser Kleinmotor, bei dem das genietete Blechpaket gleichzeitig als Traeger fuer die Lagerschilde verwendet wird
US4155020A (en) * 1977-10-18 1979-05-15 Sundstrand Corporation Snap-fit fastening system for attaching member to an electric motor
DE102007049596A1 (de) * 2007-10-15 2009-04-16 Isel Automation Gmbh & Co. Kg Rotor oder Stator für eine elektrodynamische Maschine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE969387C (de) * 1955-05-19 1958-05-29 Lorenz C Ag Gehaeuseloser Kleinmotor, bei dem das genietete Blechpaket gleichzeitig als Traeger fuer die Lagerschilde verwendet wird
US4155020A (en) * 1977-10-18 1979-05-15 Sundstrand Corporation Snap-fit fastening system for attaching member to an electric motor
DE102007049596A1 (de) * 2007-10-15 2009-04-16 Isel Automation Gmbh & Co. Kg Rotor oder Stator für eine elektrodynamische Maschine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4560884A1 (fr) * 2023-11-21 2025-05-28 Hilti Aktiengesellschaft Stator à dents enfichables

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