WO2015048955A2 - Joint à ajustement serré pour rotor comportant des saillies de liaison et/ou évidements de déformation dans le paquet de tôles rotoriques - Google Patents

Joint à ajustement serré pour rotor comportant des saillies de liaison et/ou évidements de déformation dans le paquet de tôles rotoriques Download PDF

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Publication number
WO2015048955A2
WO2015048955A2 PCT/DE2014/200460 DE2014200460W WO2015048955A2 WO 2015048955 A2 WO2015048955 A2 WO 2015048955A2 DE 2014200460 W DE2014200460 W DE 2014200460W WO 2015048955 A2 WO2015048955 A2 WO 2015048955A2
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
main body
spindle
shaft
projection
Prior art date
Application number
PCT/DE2014/200460
Other languages
German (de)
English (en)
Other versions
WO2015048955A3 (fr
Inventor
Julian Botiov
Original Assignee
Schaeffler Technologies AG & 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 Schaeffler Technologies AG & Co. KG filed Critical Schaeffler Technologies AG & Co. KG
Priority to CN201480054103.4A priority Critical patent/CN105594100A/zh
Priority to DE112014004545.4T priority patent/DE112014004545A5/de
Publication of WO2015048955A2 publication Critical patent/WO2015048955A2/fr
Publication of WO2015048955A3 publication Critical patent/WO2015048955A3/fr

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
    • H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
    • H02K1/30—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures using intermediate parts, e.g. spiders
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/024—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with slots
    • H02K15/028—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with slots for fastening to casing or support, respectively to shaft or hub

Definitions

  • the invention relates to a rotor for an electrically operated actuator or a motor, with a rotatably mounted spindle or shaft which is arranged in a hole of a main body, and wherein the main body is non-rotatably pressed onto the spindle or shaft.
  • an actuator / actuator for a motor vehicle having a housing, with a stator and a rotor rotatable relative to this stator having, electromagnetic drive means, wherein the rotor is connected via a transducer unit with a trigger element, wherein further the converter unit Rotational movement of the rotor converts into a translational movement of the trigger element, and with an electrically connected to the drive means, the drive means controlling electronic control unit, wherein the drive means comprises at least on the control unit side facing an existing of an electrically insulating material encapsulation.
  • a rotor has a front end which projects into a rotor extrusion.
  • the rotor is designed as a laminated core.
  • the laminated core has a plurality of adjacent discs and is held in the Rotorumspritzung.
  • the laminated core and the Rotorumspritzung and the rotor drive magnets therefore form the rotor.
  • a rod of a spindle drive is inserted in the operating state in the laminated core and held in rotation therewith.
  • the invention is currently in the field of integration of a "blazed" rotor in a brushless DC motor on a spindle / shaft in a drive unit.
  • the rotor is usually press-fitted onto the spindle.
  • the contact forces that occur when the rotor is pressed onto the spindle, however, are often too large
  • a "bladed" rotor is formed from laminated and / or insulated sheets in packages or as a wound ribbon core.
  • the use of a press fit for the assembly of the rotor in mass production with different drive modules is very common, inexpensive and represents a reliable connection.
  • the aim is in particular to make possible a robust design of the interference fit between the laminated rotor and the drive spindle even under boundary conditions of a series production and thereby to fulfill the requirements for a torque transmission / transmission of the interference fit even under difficult boundary conditions.
  • a blazed rotor of a brushless DC motor (BLDC motor) on the spindle in a drive unit is then improved.
  • the rotor is pressed onto the spindle, in particular the main body of the rotor is pressed onto the spindle.
  • the contact forces that arise when pressing the main body of the rotor onto the spindle are reduced compared with known solutions.
  • the (sheet) topology of the rotor in the area of the interference fit is optimized so that a stronger deformation in elastic-plastic areas of the stress-strain curve of the (sheet) material is permitted without increasing the maximum permissible assembly force of the rotor in order to fall below the requirements for a maximum torque to be transmitted.
  • the invention can be implemented in particular in projects involving the integration of rotor laminations on a shaft with interference fit, for example in BLDC internal rotors.
  • An UZSB rotor is understood to mean a "subassembly of the rotor.” By this is meant that the rotor is part of the drive module.
  • a plurality of projections is present, the same distributed on the inner circumference of the expediently "lathed" main body of the rotor radially inwardly project, for example, 3, 4, 5, 6, 7, 8, 9 or more projections.
  • the projection is formed as an axially extending tooth / rib, wherein the projection is pointed or concave, preferably adapted to the outer contour of the spindle or shaft, is formed, a particularly efficient non-rotatable press connection is provided, the unwanted Deformations avoids.
  • the "bleached" main body is made up of a laminated and / or insulated set of sheets, preferably combined as packages, Alternatively, the main body can also be designed as a cut strip core.
  • An advantageous embodiment is also characterized in that present in the contact region between the main body and the spindle / shaft in the elastic-plastic area dimensioned interference fit.
  • the invention also relates to an actuator for a clutch with a rotor according to the invention and an electric motor with a rotor according to the invention.
  • the electric motor may preferably be designed as a brushless electric motor and more preferably as a brushless DC electric motor.
  • a new and inventive type of connection is proposed for the spindle drive of a HZA.
  • a high-quality design of a rotor and a spindle arranged therein for shaping an actuator, which is driven or driven, is possible, whereby a proven interference fit between the rotor and the spindle remains usable.
  • load limits for the press fit and the maximum torque transmission must be taken into account.
  • the inner circumference of the rotor is segmented. Several segments, in particular five segments, in the form of teeth are present, which contact the spindle.
  • additional or alternative recesses are provided in the rotor assembly.
  • the rotor is preferably a "gummed" main body, ie a main body in laminated core construction.
  • the interfaces of the interference fit of the laminated rotor are now performed segmented, preferably five segments are arranged distributed every 72 °.
  • material recesses are used radially over each of the segments, at the locations where the rotor lamination / lamination stack contacts the spindle.
  • press bandages are designed to be higher in the classical range of deformation, without exceeding the permissible stress of the material and the breaking elongation limit of the material.
  • higher tolerance variations are allowed from the outer diameter of the drive shaft / drive spindle to the inner diameter of the rotor / main body of the rotor.
  • FIG. 1 is a perspective view of a first main body of a rotor according to the invention with a centrally arranged (through) hole into which protrude five projections,
  • Fig. 2 is a front view, i. in the axial direction on the main body of the rotor
  • Fig. 3 shows a second embodiment of a main body of an inventive
  • Fig. 4 is a front view, i. in the axial direction, on the main body of the rotor
  • FIG. 3 The figures are merely schematic in nature and are only for the understanding of the invention. The same elements are provided with the same reference numerals. Features of one embodiment may be incorporated into the other embodiment. The individual features are therefore interchangeable.
  • FIGS. 1 to 4 variants for the integration of a rotor lamination stack by means of a press fit are shown with reduction of the maximum assembly force by tooth segments.
  • no further additional reduction of the pressing force is enforced, whereas this is possible in the embodiments of Figs. 3 and 4 through the material cutouts.
  • a rotor 1 is shown in part.
  • the spindle or shaft to be inserted in a (through) hole 2 of the rotor 1 is not shown yet. It is not mounted yet.
  • the (through) hole 2 can of course also be configured as a blind hole and is arranged concentrically in a main body 3 of the rotor 1.
  • the main body 3 is formed as a "bleached" main body and is composed of individual louvers (not shown in more detail) .
  • Integrated projections 4 of the main body 3 protrude into the hole 2. This can be seen particularly well in FIG Rotor 1, as shown in Fig. 1, determines the axial direction.
  • the recesses 6 are arranged exactly radially outside the projections 4. They are responsible for a relief for those occurring during assembly deformations and thus responsible for a significant reduction in assembly force and reduction of material stresses compared to the first variant.
  • An integration of a rotor laminated core by means of a press fit and the reduction of the maximum assembly force by the tooth-segment-like projections 4 on the inner circumference of the sheet-like main body 3 is possible in both embodiments.

Landscapes

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

Abstract

L'invention concerne un rotor pour un actionneur ou moteur électrique, comprenant un axe ou un arbre monté mobile en rotation qui est placé dans un trou d'un corps principal, le corps principal étant emmanché à force, solidaire en rotation, sur l'axe ou l'arbre, et ledit corps principal comportant au moins une saillie s'étendant à l'intérieur du trou. L'invention concerne également un actionneur ou un moteur électrique muni d'un tel rotor.
PCT/DE2014/200460 2013-10-01 2014-09-09 Joint à ajustement serré pour rotor comportant des saillies de liaison et/ou évidements de déformation dans le paquet de tôles rotoriques WO2015048955A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201480054103.4A CN105594100A (zh) 2013-10-01 2014-09-09 在转子叠片中具有连接凸起部和/或变形凹部的转子压配合部
DE112014004545.4T DE112014004545A5 (de) 2013-10-01 2014-09-09 Rotorpressverband mit Verbindungsvorsprüngen und/oder Deformationsausnehmungen im Rotorpaket

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102013219923 2013-10-01
DE102013219923.6 2013-10-01
DE102014205693 2014-03-27
DE102014205693.4 2014-03-27

Publications (2)

Publication Number Publication Date
WO2015048955A2 true WO2015048955A2 (fr) 2015-04-09
WO2015048955A3 WO2015048955A3 (fr) 2015-10-01

Family

ID=51798952

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2014/200460 WO2015048955A2 (fr) 2013-10-01 2014-09-09 Joint à ajustement serré pour rotor comportant des saillies de liaison et/ou évidements de déformation dans le paquet de tôles rotoriques

Country Status (3)

Country Link
CN (1) CN105594100A (fr)
DE (1) DE112014004545A5 (fr)
WO (1) WO2015048955A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017111955A1 (de) 2017-05-31 2018-12-06 Schaeffler Technologies AG & Co. KG Kostenoptimierter Rotor einer elektrischen Maschine
EP3793066A1 (fr) 2019-09-13 2021-03-17 Metabowerke GmbH Tôle de rotor pour un rotor d'un moteur électrique, rotor pour un moteur électrique et moteur électrique

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9401565U1 (de) * 1994-01-31 1994-12-01 Siemens Ag Elektromotorantrieb, insbesondere Kraftfahrzeug-Fensterheberantrieb
US8035273B2 (en) * 2005-12-08 2011-10-11 A.O. Smith Corporation Rotor assembly having two core portions each with a reduced back portion
DE102008004876A1 (de) * 2007-02-01 2008-08-07 Robert Bosch Gmbh Elektrische Maschine
DE102007029738A1 (de) * 2007-06-27 2009-01-08 Robert Bosch Gmbh Rotor für einen Elektromotor und Elektrowerkzeugmaschine mit einem Elektromotor und einem Rotor
CN101888125B (zh) * 2009-05-12 2013-07-31 德昌电机(深圳)有限公司 电机转子
CN201994745U (zh) * 2011-04-08 2011-09-28 李明山 一种交流电动机用永磁转子
EP2549624B1 (fr) * 2011-07-22 2019-05-01 LG Innotek Co., Ltd. Noyau de rotor de moteur

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017111955A1 (de) 2017-05-31 2018-12-06 Schaeffler Technologies AG & Co. KG Kostenoptimierter Rotor einer elektrischen Maschine
WO2018219390A1 (fr) 2017-05-31 2018-12-06 Schaeffler Technologies AG & Co. KG Rotor présentant des coûts optimisés d'un moteur électrique
EP3793066A1 (fr) 2019-09-13 2021-03-17 Metabowerke GmbH Tôle de rotor pour un rotor d'un moteur électrique, rotor pour un moteur électrique et moteur électrique

Also Published As

Publication number Publication date
DE112014004545A5 (de) 2016-07-21
CN105594100A (zh) 2016-05-18
WO2015048955A3 (fr) 2015-10-01

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