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WO2010066491A2 - Moteur électrique, en particulier servomoteur ou moteur d'entraînement dans des véhicules automobiles - Google Patents

Moteur électrique, en particulier servomoteur ou moteur d'entraînement dans des véhicules automobiles Download PDF

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Publication number
WO2010066491A2
WO2010066491A2 PCT/EP2009/063531 EP2009063531W WO2010066491A2 WO 2010066491 A2 WO2010066491 A2 WO 2010066491A2 EP 2009063531 W EP2009063531 W EP 2009063531W WO 2010066491 A2 WO2010066491 A2 WO 2010066491A2
Authority
WO
WIPO (PCT)
Prior art keywords
electric motor
carrier
stator
motor according
teeth
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/EP2009/063531
Other languages
German (de)
English (en)
Other versions
WO2010066491A3 (fr
Inventor
Johannes Duerr
Stefan Keil
Wolfgang Hilgers
Adolf Dillmann
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to CN200980149939.1A priority Critical patent/CN102246391B/zh
Publication of WO2010066491A2 publication Critical patent/WO2010066491A2/fr
Publication of WO2010066491A3 publication Critical patent/WO2010066491A3/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
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/52—Fastening salient pole windings or connections thereto
    • H02K3/521—Fastening salient pole windings or connections thereto applicable to stators only
    • H02K3/522—Fastening salient pole windings or connections thereto applicable to stators only for generally annular cores with salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/15—Mounting arrangements for bearing-shields or end plates
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/06—Magnetic cores, or permanent magnets characterised by their skew
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2203/00—Specific aspects not provided for in the other groups of this subclass relating to the windings
    • H02K2203/09—Machines characterised by wiring elements other than wires, e.g. bus rings, for connecting the winding terminations

Definitions

  • the invention relates to an electric motor, in particular an actuating or drive motor in motor vehicles.
  • a permanent-magnet internal-rotor DC motor is described, the stator of which comprises in a housing a fixedly arranged stator packet, which is constructed from a plurality of individual lamellae.
  • the lamellae are arranged axially one behind the other and support a stator winding, via which a magnetic field is generated, which with
  • Permanent magnet on the rotor shaft cooperates.
  • the lamellae form a coherent package and are held together axially by suitable clamping means.
  • the invention is based on the object to form an electric motor in such a way that with simple adaptation measures different electric motor sizes can be realized.
  • the electric motor according to the invention is used, for example, as a positioning or drive motor in motor vehicles. Applications may be considered
  • Starter motor as a steering motor or for operating an auxiliary unit such as For example, a windshield wiper, a window lifter or a Wegverstellmotors.
  • the electric motor has a stator in a motor housing and a rotor shaft rotatably mounted in the stator.
  • a bearing plate is arranged in each case, wherein in each bearing plate, a bearing part is received for the rotor shaft.
  • the bearing plates are directly connected to the stator housing.
  • the bearing plates are welded to the motor housing or shrunk onto the motor housing, whereby an improved connection between bearing plates and motor housing is given.
  • the increased rigidity has a positive effect on the torque curve.
  • the heat dissipation is improved since the bearing plates themselves as well as the motor housing participate in the heat radiation.
  • sealing elements which are required in the prior art, between bearing plates and
  • Motor housing can be omitted. Due to the cohesive connection between the bearing plates and motor housing a sufficient tightness is given. The material bond between the bearing plates and the motor housing is produced in particular by welding, wherein in principle also mechanical connection measures such as the above-mentioned shrinking come into consideration. In a preferred embodiment, the bearing plates are fastened exclusively to the motor housing, so that in particular no further connecting elements such as the already mentioned tie rods or the like for the assembly of bearing plates and motor housing are required.
  • At least one of the bearing plates can be a carrier for electronic components which generate actuating signals which act on the electric motor.
  • the relevant bearing plate thus assumes, in addition to its function, the motor housing frontally final function and their task to receive the bearing part for the rotor shaft, an additional component-bearing function.
  • the bearing parts are expediently designed as independent components, in particular as bearing rings, which are used in the bearing plates and are supported by them. Due to the fixed connection between the bearing plates and the motor housing, a secure and centric mounting of the rotor shaft in the electric motor is achieved in this way.
  • the stator consists of a plurality of circumferentially arranged single stator elements, which form carrier teeth, each carrier tooth being provided with a wound coil.
  • the coils on the carrier teeth are electrically connected to each other or are electrically energized from the outside.
  • the electrical contact is produced in particular by means of a contact ring, which is preferably a carrier of contact elements for electrical connection to the coils on the carrier teeth.
  • the contact ring is connected to one of the bearing plates or is held by a bearing plate. This is done in particular in such a way that the contact ring on the end face of the stator is fixed by the bearing plate, which is connected to the motor housing.
  • the electronic components and the contact ring are located on the same bearing plate, contact ring, bearing plate and electronic components expediently form a coherent, prefabricated unit, whereby the assembly is simplified.
  • the carrier teeth are arranged at an angle relative to the stator longitudinal axis, such that the tooth longitudinal axis of each carrier tooth forms an angle with the stator longitudinal axis.
  • This angle is preferably in an angular range of up to about 30 °, in particular up to 10 ° or slightly less than 10 °, with basically any angle values up to the specified maximum values being considered.
  • the angular arrangement of the carrier teeth and the coils located thereon has the advantage that a smoothing of the torque output by the electric motor is achieved.
  • Fig. 1 in an exploded view, the components of an electric motor, wherein the stator is composed of individual carrier teeth, each with a coil which are electrically connected to each other using a contact ring and disposed thereon insulation displacement terminals, as well as disposed on a front side, output side bearing plate, directly with the Motor housing of the electric motor is connected,
  • FIG. 3 is a side view of the stator of the electric motor, which consists of a plurality of circumferentially distributed carrier teeth, which are arranged at an angle relative to the stator longitudinal axis,
  • 4a is a perspective detail view of a carrier tooth with a coil
  • 4b is a side view of a carrier tooth with coil
  • 5 shows a section through a carrier tooth with coil
  • 6 is a plan view of a carrier tooth with coil, wherein the wire ends of the coil winding are each guided over an introduced into the front side of the carrier tooth receiving pocket
  • Fig. 8 is an enlarged view of realized via a clip connection
  • FIG. 9 is a perspective view of a contact ring, consisting of a plurality of individual rings, each having a plurality of insulation displacement terminals, which form contact elements,
  • 1 1 is a perspective view from above of the mounted electric motor
  • FIG. 12 shows a section through the electric motor with a magnet inserted into the front side of the rotor shaft as part of a rotor position sensor system.
  • the electric motor 1 is designed as an internal rotor motor and comprises a rotor shaft 2, which is the carrier of a rotor stack 3.
  • the rotor shaft 2 including the rotor core 3 is in the assembled state in a stator 4, which is the carrier of several, distributed over the circumference coils, which are electrically contacted and supplied with power via an axially arranged on the stator contact ring 5 and disposed thereon insulation displacement terminals 6.
  • a bearing plate 7 which receives a bearing part 8 for the rotor shaft 2.
  • the A-bearing plate 7 is fixedly connected to a motor housing 10 which receives the stator 4 including the rotor shaft 2.
  • On the A-bearing plate 7 axially opposite end face is another bearing part 9 for supporting the rotor shaft 2.
  • the bearing part 9 is in the assembled state in a further bearing plate 1 1 (B-bearing plate, shown in Fig. 2) added.
  • the bearing plate 1 1 is also a carrier of electronic components 12, via which the control or regulation of the electric motor 1 takes place.
  • the A-bearing plate 7 and the B-bearing plate 1 1 grasp the motor housing 10 at opposite axial end faces and are directly or directly connected to the motor housing 10.
  • it is an exclusive connection of each bearing plate 7, 1 1 with the motor housing 10, so that beyond this connection, no further connection measures such as tie rods between the bearing plates or the like are required.
  • the connection is made by welding between the end face of the motor housing 10 and the bearing plates 7 and 1 1 or by shrinking. In any case, a tight connection is achieved, so that can be dispensed with the use of additional sealing elements between the bearing plates and the motor housing.
  • Another advantage is the improved stiffness, which is increased due to the direct connection of bearing plates and motor housing. The improved stiffness also has a positive influence on the torque curve.
  • the contact ring 5 with the contact elements designed as insulation displacement terminals 6 is expediently held by the B support plate 11, just like the bearing part 9.
  • the stator 4 consists of a multiplicity of individual carrier teeth 13, which are distributed over the circumference and which each support a coil 17.
  • the carrier teeth 13 close with the stator longitudinal axis 14, which also forms the longitudinal axis of the electric motor, (FIG. 1), an angle ⁇ .
  • Fig. 3 is a tooth longitudinal axis 15 registered by a support tooth 13, wherein the side edges of each support tooth 13 extend parallel to the tooth longitudinal axis 15.
  • the angle ⁇ under which each carrier tooth 13 is aligned at an angle relative to the stator longitudinal axis 14 lies in the exemplary embodiment in an angular range of less than 10 °, in particular about 8 °.
  • the angle ⁇ can advantageously also assume value ranges greater than 10 °, for example up to 30 °, or even significantly smaller values than 10 °. Basically, ranges of values in arbitrary gradations between approximately 1 ° and approximately 30 ° or possibly even beyond should be possible.
  • the angular arrangement of the carrier teeth 13 with respect to the stator longitudinal axis 14 has the advantage that a smoothing or equalization of the torque curve can be achieved thereby. Since a magnetic field is generated in each individual coil, each coil contributes to the generation of the torque, due to the discrete number and positioning of the coils
  • stator 4 basically sets in a rectilinear positioning of carrier teeth and coils a non-circular torque curve.
  • inclination of the carrier teeth of the non-round torque curve is smoothed.
  • Each carrier tooth 13 has an end portion 16 into which the coil wire ends 17a and 17b are received in cuts 18. Via the coil wire ends 17a and 17b, the electrical contact between the insulation displacement terminals 6 takes place on the contact ring 5 (FIG. 1).
  • each support tooth 13 is aligned coaxially or axially parallel to the stator longitudinal axis 14, so that each end portion 16 with the angularly oriented tooth base body 19 of each support tooth 13 also includes an angle ⁇ . This facilitates the axial placement or insertion of the insulation displacement terminals 6, which are held on the contact ring 5, on the
  • FIGS. 4a, 4b, 5 and 6 each show a carrier tooth 13, which forms a single stator element, in a single representation. 4a and 4b it can be seen that the coil 17 is wound around the base body 19 of the carrier tooth 13 and that the free coil wire ends 17a and 17b in the region of the end portion 16, which is formed integrally with the base body 19, are guided by the cuts 18 in the end portion 16.
  • the tooth base body 19 is formed in cross-section double-T-shaped, so that lateral boundaries for the coil 17 are formed and the coil wire is securely held on the tooth base body 19.
  • the surface of the tooth base body 19, which is formed as a laminated core is encapsulated with a plastic casing 20, whereby the coil 17 is electrically insulated from the base body 19.
  • the other areas of the tooth base 19 have no plastic coating.
  • two parallel, mutually staggered receiving pockets 21 are introduced into the upper end face of the end portion 16, over which the coil wire ends 17 a and 17 b are guided.
  • the incisions 18, in which the coil wire ends 17 a, 17 b are inserted, are introduced into the receiving pockets 21 defining walls.
  • the receiving pockets 21 serve on the one hand for receiving a chip (baubles), which can arise during the connection process with the insulation displacement contacts on the contact ring by shearing.
  • the receiving pockets 21 serve to receive the axially projecting part of the insulation displacement terminals, whereby a compact design is achieved in the axial direction.
  • connection between immediately adjacent carrier teeth 13 is shown.
  • the connection is preferably made exclusively by mechanical means using latching elements, which in the exemplary embodiment are designed as a clip connection 22.
  • Each clip connection 22 comprises two latching elements, which are each arranged on a carrier tooth 13 and designed to be complementary to each other.
  • this is a Klipsvorsprung 23 on a first carrier tooth 13 and an associated, complementary formed KArchitectusEnglishung 24 on the immediately adjacent carrier tooth 13.
  • the Klipsvorsprung 23 is ball or teilku- executed gel-shaped or cylindrical, accordingly, the KBAusEnglishung 24 is also provided with a spherical or part-spherical or cylindrical recess.
  • the elements of the clip connection made of a material with sufficient elasticity and / or the clip elements are formed relatively thin-walled or a thin-walled portion with the respective Carrier tooth 13 connected.
  • the clip elements of the clip connection 22 from a plastic material by molding the clip elements directly onto each carrier tooth. But it is also possible a version made of metal.
  • Figures 9 and 10 relate to the contact ring 5, which is carrier of the insulation displacement terminals 6, electrically connected to one another via the coils of different carrier teeth and supplied with current.
  • the contact ring 5 consists of a plurality of individual rings 25, which are each carrier of the insulation displacement terminals 6 and which are axially stacked. Between each two axially adjacent individual rings 25 is a separating ring 27. Axially at the bottom is a base ring 26 as a carrier of all individual rings 25 and separating rings 27th
  • Fig. 1 the electric motor 1 1 is shown in the assembled position, wherein the bearing plate 1 1, which carrier of the electronic components 12 is (Fig. 2), indicated only schematically.
  • the contact ring 5 with the insulation displacement terminals 6 is placed on the front side of the stator for electrical connection with the coils on each support tooth of the stator.
  • axially superior contact elements 28 for e- lektrischen connection to the electronics or the power supply are arranged.
  • a magnetic element 29 is inserted into the axial end face of the rotor shaft 2 on the side facing the contact ring 5. This is preferably located in a recess in the end face of the rotor shaft. 2
  • the magnetic element 29 is part of a rotor position sensor via which the current rotor position of the rotor shaft 2 can be determined.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

L'invention concerne un moteur électrique qui comprend un stator dans un carter de moteur, ainsi qu'un arbre de rotor logé dans le stator. Selon l'invention, une plaque d'appui est placée respectivement sur les faces frontales opposées du carter de moteur et une pièce d'appui pour l'arbre de rotor est montée dans chaque plaque d'appui. Les plaques d'appui sont reliées directement au carter de moteur.
PCT/EP2009/063531 2008-12-11 2009-10-16 Moteur électrique, en particulier servomoteur ou moteur d'entraînement dans des véhicules automobiles Ceased WO2010066491A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200980149939.1A CN102246391B (zh) 2008-12-11 2009-10-16 电动机特别是汽车中的伺服电动机或者驱动电动机

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810054529 DE102008054529A1 (de) 2008-12-11 2008-12-11 Elektromotor, insbesondere Stell- oder Antriebsmotor in Kraftfahrzeugen
DE102008054529.5 2008-12-11

Publications (2)

Publication Number Publication Date
WO2010066491A2 true WO2010066491A2 (fr) 2010-06-17
WO2010066491A3 WO2010066491A3 (fr) 2011-01-06

Family

ID=42168273

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/063531 Ceased WO2010066491A2 (fr) 2008-12-11 2009-10-16 Moteur électrique, en particulier servomoteur ou moteur d'entraînement dans des véhicules automobiles

Country Status (3)

Country Link
CN (1) CN102246391B (fr)
DE (1) DE102008054529A1 (fr)
WO (1) WO2010066491A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9660495B2 (en) 2013-03-27 2017-05-23 Maxon Motor Ag Stator for a high-temperature electric motor and electric motor
CN111277064A (zh) * 2018-12-05 2020-06-12 罗伯特·博世有限公司 用于电机的定子、电机和用于制造这种定子的方法

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DE102010039336A1 (de) 2010-08-16 2012-02-16 Robert Bosch Gmbh Kontakteinrichtung in einem Stator einer elektrischen Maschine
DE102010039340A1 (de) 2010-08-16 2012-02-16 Robert Bosch Gmbh Kontakteinrichtung in einem Stator einer elektrischen Maschine
DE102010039335A1 (de) 2010-08-16 2012-02-16 Robert Bosch Gmbh Kontakteinrichtung in einem Stator einer elektrischen Maschine
DE202010017081U1 (de) 2010-08-16 2011-03-17 Robert Bosch Gmbh Kontakteinrichtung in einem Stator einer elektrischen Maschine
DE102010062385A1 (de) 2010-12-03 2012-06-06 Robert Bosch Gmbh Ringförmiger Permanentmagnet in einer elektrischen Maschine
CN105226865A (zh) * 2014-06-26 2016-01-06 苏州三星电子有限公司 一种冰箱、直流电机及其组装方法
DE102015222642A1 (de) 2015-11-17 2017-05-18 Robert Bosch Gmbh Elektromotor
US10181658B2 (en) 2016-03-31 2019-01-15 Borgwarner Inc. Electric machine with electrical connector
DE102016206657A1 (de) 2016-04-20 2017-10-26 Robert Bosch Gmbh Verschaltungsring und Verfahren zum Verschalten von Wicklungsdrähten eines Stators
DE102016211599A1 (de) 2016-06-28 2017-12-28 Robert Bosch Gmbh Segmentierter Stator und Verfahren zum Verschalten des Stators
DE102016224783A1 (de) 2016-12-13 2018-06-14 Robert Bosch Gmbh Verschaltungsplatte in einem Stator einer elektrischen Maschine
DE102017219861A1 (de) * 2017-11-08 2019-05-09 Robert Bosch Gmbh Schneid-Klemm-Verbindung, sowie Stator für eine elektrische Maschine und eine elektrische Maschine umfassend eine Schneid-Klemm-Verbindung und Verfahren zum Herstellen eines solchen Stators
DE102017222076B4 (de) * 2017-12-06 2025-07-03 Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg Elektromotor sowie Schalteinheit hierfür
DE102018200065A1 (de) 2018-01-04 2019-07-04 Robert Bosch Gmbh Verfahren zur Herstellung einer stromleitenden Schneidklemmen-Draht-Verbindung
DE102018103260A1 (de) 2018-02-14 2019-08-14 Seg Automotive Germany Gmbh Anschlussplatte für einen Stator einer elektrischen Maschine
FR3083024B1 (fr) * 2018-06-26 2022-04-22 Valeo Equip Electr Moteur Dispositif d'interconnexion pour une machine electrique tournante destinee a un vehicule automobile
DE102018214111A1 (de) 2018-08-21 2020-02-27 Robert Bosch Gmbh Stator für eine elektrische Maschine, eine elektrische Maschine und Verfahren zum Herstellen einer solchen elektrischen Maschine
DE102018221040A1 (de) 2018-12-05 2020-06-10 Robert Bosch Gmbh Stator für eine elektrische Maschine, eine elektrische Maschine und Verfahren zum Herstellen eines solchen Stators
US20210044159A1 (en) * 2019-08-06 2021-02-11 Hamilton Sundstrand Corporation Segmented and individually wound stator core for electric propulsion motor
DE102020200182A1 (de) * 2020-01-09 2021-07-15 Robert Bosch Gesellschaft mit beschränkter Haftung Verfahren zur Verbindung einer Anschlussplatte mit Wicklungen eines Stators einer elektrischen Maschine
DE102020200283A1 (de) 2020-01-11 2021-07-15 Robert Bosch Gesellschaft mit beschränkter Haftung Stator für eine elektrische Maschine, eine elektrische Maschine und Verfahren zum Herstellen eines solchen Stators
DE102020200294A1 (de) 2020-01-13 2021-07-15 Robert Bosch Gesellschaft mit beschränkter Haftung Stator für eine elektrische Maschine, eine elektrische Maschine und Verfahren zum Herstellen eines solchen Stators
DE102021203093A1 (de) 2021-03-29 2022-09-29 Robert Bosch Gesellschaft mit beschränkter Haftung Stator für eine elektrische Maschine, eine elektrische Maschine und Verfahren zum Herstellen eines solchen Stators
DE102022213976A1 (de) * 2022-12-20 2024-06-20 Zf Friedrichshafen Ag Elektrische Maschine mit einer an einem Lagerschild befestigten Verschaltungseinrichtung sowie Verfahren zur Montage der elektrischen Maschine
DE102023202149A1 (de) 2023-03-10 2024-09-12 Robert Bosch Gesellschaft mit beschränkter Haftung Stator für eine elektrische Maschine, eine elektrische Maschine und Verfahren zum Herstellen eines solchen Stators
DE102023205469A1 (de) * 2023-06-13 2024-12-19 Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg Kontaktvorrichtung für einen Stator eines Elektromotors

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DE10152006B4 (de) * 2001-10-22 2011-06-01 Zf Sachs Ag Stator für eine elektrische Maschine
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9660495B2 (en) 2013-03-27 2017-05-23 Maxon Motor Ag Stator for a high-temperature electric motor and electric motor
CN111277064A (zh) * 2018-12-05 2020-06-12 罗伯特·博世有限公司 用于电机的定子、电机和用于制造这种定子的方法

Also Published As

Publication number Publication date
DE102008054529A1 (de) 2010-06-17
CN102246391A (zh) 2011-11-16
WO2010066491A3 (fr) 2011-01-06
CN102246391B (zh) 2014-05-28

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