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WO2017162568A1 - Plaque de câblage pour un stator d'une machine électrique et procédé de fabrication d'une machine électrique - Google Patents

Plaque de câblage pour un stator d'une machine électrique et procédé de fabrication d'une machine électrique Download PDF

Info

Publication number
WO2017162568A1
WO2017162568A1 PCT/EP2017/056522 EP2017056522W WO2017162568A1 WO 2017162568 A1 WO2017162568 A1 WO 2017162568A1 EP 2017056522 W EP2017056522 W EP 2017056522W WO 2017162568 A1 WO2017162568 A1 WO 2017162568A1
Authority
WO
WIPO (PCT)
Prior art keywords
conductor elements
stator
wiring plate
plate
portions
Prior art date
Application number
PCT/EP2017/056522
Other languages
German (de)
English (en)
Inventor
Christian Meyer
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
Publication of WO2017162568A1 publication Critical patent/WO2017162568A1/fr

Links

Classifications

    • 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
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
    • 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
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H02K5/225—Terminal boxes or connection arrangements
    • 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 a circuit board for a stator of an electric machine, and to an electric machine and to a method for producing such an electric machine according to the preamble of the independent claims.
  • a stator of an electric machine in which axially on a laminated plate package, an insulating plate and a Verschaltungsin are arranged.
  • the stator is wound for example by means of needle winding, wherein the individual partial coils are connected to each other by means of connecting wires on the outer periphery of the Verschaltungside.
  • the phase terminals for the coils are led out of the stator for example by means of a flexible cable and connected to a spatially separated control unit of the electric motor.
  • the object of the invention is therefore to provide a shock-resistant and temperature-resistant contacting of the stator coils with an axially arranged above the stator plug housing for the power supply.
  • the electrical contacts are reliably isolated from each other and can not be solved even at high temperature and / or shaking stress. If the conductor elements formed as bending-stamping parts, the
  • Circuit board are made very flat design, the rectangular conductor cross-sections still allow low resistance values for connecting the electric coils with each other and for connecting to a connector plug. Due to the separate preprocessing of the circuit board, these process technology can be very favorable connected both with the electrical windings and with the connector pins. This creates a compact electric machine that is also suitable for use at very high temperatures (over 140 degrees Celsius) and high shaking loads (up to 30g).
  • Receiving sleeve are inserted, and welded to this or otherwise electrically contacted. If the receiving sleeves are aligned axially, the interconnecting plate can be joined directly axially onto the coil wire ends protruding in the axial direction, so that no additional bending process is necessary any more. Due to the cylindrical design of the receiving sleeves, the wire ends received therein are almost completely surrounded by the attachment sections. This can be created in a very simple manner, a reliable weld between the wire ends and the receiving sleeves. For easier insertion of the wire ends, the receiving sleeve may also have a conical portion which extends over a part or all of the axial length of the receiving sleeve.
  • a complete receiving sleeve can be easily produced by a deep-drawing process.
  • a hole is pressed axially into the punching plate of the fastening sections, which extends in a plane transverse to the rotor shaft, wherein a sleeve is formed around the axial depression of the mandrel around it.
  • Attachment sections punched out side flaps, which are then bent together to form a sleeve with an axial seam.
  • the radial attachment portion is bent axially, so that the receiving sleeves in
  • connection pins extend in the axial direction, they can be welded very favorably to the connector pins, which extend axially from a connector housing above the connection plate to the latter. To compensate for tolerances in the connection process and
  • connection pins are connected via a resilient region with the connecting portions of the conductor elements.
  • This resilient region is outside the plastic body, preferably in one
  • the conductor elements approximately over their entire extension in the direction of current conduction approximately a constant electrical cross-section. Since the conductor elements are preferably manufactured as bending stamped parts, here the constant rectangular cross-section for both Connecting portions, as well as for the mounting portions and the connecting pins can be realized.
  • connection pins for the phases U, V, W which are connected via three separate conductor elements with corresponding wire ends of the coils. It is particularly advantageous to arrange exactly a fourth conductor element, which forms a star point connection of the individual coils with each other.
  • Be plastic body formed large enough so that the bearing plate can be arranged with the bearing for the rotor shaft therein.
  • Connecting sections also radially offset from each other, or are arranged radially adjacent to each other
  • the connecting portion of the conductor element which is the
  • Star connection forms arranged in a single axial plane.
  • Connecting portions of the other conductor elements on which the axial pins are formed are arranged on a different radius so that they are arranged partially axially in the same plane as the fourth conductor element and partially in a second axial spaced plane to the first plane.
  • all four connecting sections can be arranged with only partial overlapping in a total of exactly two axially spaced-apart planes, so that the plastic body can be made very compact both radially and axially.
  • axial projections are integrally formed on the plastic body on the radially outer edge, which are supported axially on the stator.
  • the wiring plate can be pressed by the bearing plate axially down against the stator, in particular by means arranged on the bearing plate
  • both the rotor and the wiring plate can be reliably fixed in one operation. Due to the force acting on the wiring plate axial resilient contact pressure, different
  • the manufacturing method of the electrical machine according to the invention has the advantage that all components can be axially mounted with a few process steps and electrically contacted in a simple manner.
  • two adjacent windings of the stator are always formed as double coils with a continuous wire, so that each pair of coils has only two wire ends.
  • the connection pins can be contacted with the corresponding connector pins. Due to the resilient connection of the connection pins position inaccuracies can be compensated during welding and the
  • Figure 1 individual conductor elements of a circuit board according to the invention, a circuit board according to Figure 1 with molded
  • FIG. 3 shows a detail of a receiving sleeve according to FIG. 1,
  • Figure 4 shows an alternative embodiment of a receiving sleeve
  • Figure 5 is an inserted into a pole pot interconnecting plate according to Figure 2 and
  • FIG. 6 shows a section through a further embodiment of a
  • Inserts with a plastic body 21 are molded around a
  • the circuit board 22 serves to connect electrical windings 17 of an electric machine 10 with the electrical contacts 30 of a plug housing 33.
  • the circuit board 22 serves to connect electrical windings 17 of an electric machine 10 with the electrical contacts 30 of a plug housing 33.
  • Conductor elements 23 fastening portions 25 for the coil wire ends 19, which are integrally formed on connecting portions 24 which extend in the circumferential direction 2.
  • the conductor elements 23 are here as bending-punching parts of a
  • the electrical cross section 58 of the conductor elements 23 is rectangular. In this case, the cross-section 58 has a greater extent in the radial direction 3 than in the axial direction 4. As a result, the conductor elements 23 can be arranged at least partially axially one above the other.
  • the connecting portions 24 partially overlap in the circumferential direction 2. Therefore, at least some of the connecting portions 24 on an axial step 28, so that in this embodiment, all the conductor elements 23 with all
  • Overlaps 29 in exactly a first and a second axial planes 8, 9 can be arranged.
  • the connecting portions 24 are partially arranged in the radial direction 3 next to each other. After all the conductor elements 23 are nested together in such a way, without these touching each other, the inserts are in a corresponding tool with a
  • a receiving sleeve 27 is formed at each of the radial ends 31, which extends in the axial direction 4.
  • the receiving sleeves 27 each have a hole 35 in that the coil wire ends 19 of the electrical windings 17 can be inserted.
  • there all receiving sleeve 27 have a same position in the axial direction 4, regardless of whether they are connected to connecting portions 24 in the first axial plane 8 or in the second axial plane 9.
  • a part of the conductor elements 23 have connection pins 26, by means of which the electrical windings 17 via the
  • connection pins 26 extend in
  • connection pins 26 are in this case
  • the resilient portions 38 are also outside the plastic body 21- preferably in the radial recesses 39 - arranged to develop a spring action, in particular in the circumferential direction 2 can.
  • Embodiment exactly three conductor elements 23 each have a connection pin
  • Each of these three conductor elements 23 has exactly two receiving sleeves 27.
  • a fourth conductor element 13 has no
  • the fourth conductor element 13 is formed as a star point element, which electrically connects coil pairs 7 formed by the electrical windings 17.
  • the fourth conductor element 13 exactly six
  • Coil pair 7 are connected.
  • a coil pair 7 is formed for example by two adjacent electric coils 17, which are connected to a winding wire
  • Coil ends 19 has.
  • Coil pairs 7 is connected to a receiving sleeve 17 of the other three conductor elements 23, whereby a star connection for the three phases U, V, W is realized.
  • Circuit board 23 is placed on a stator 16 which is inserted in a housing 14 of an electric machine 10.
  • the stator 16 has coil carriers 36, which are formed separately, for example, as individual segments 62, and are wound with the electrical windings 17.
  • the housing 14 serves as a pole pot 15, which forms a magnetic yoke for the electric coil 17.
  • Coil wire ends 19 extend beyond the electric coils 17 in the axial direction 4.
  • the wiring plate 22 is axially mounted on the stator 16 that the
  • Coil ends 19 are inserted into the holes 35 of the receiving sleeves 27. Subsequently, electrical connections between the coil wire ends 19 and the receiving sleeves 27, for example by welding, soldering or crimping can be formed.
  • the plastic body 21 is supported in the axial direction
  • the plastic body 21 is annular, so that in its central recess 44, a rotor shaft 20 of the rotor 18 can protrude.
  • the pole pot 15 has in its open end a flange 32 on which further housing parts 33 can be placed. in the
  • Embodiment all on one half of the stator 16 so that they can be easily connected to the corresponding contacts 30 of the connector plug 37.
  • FIG. 3 shows an enlarged view of a receiving sleeve 27 according to FIGS. 1 and 2.
  • the receiving sleeve 27 is formed from the formed as a punch-bending part conductor element 23 by means of bending. These are on the axial
  • the receiving sleeve 27 is cylindrical, wherein the diameter of the hole 35 is determined by the length of the tangential tabs 46.
  • the conductor elements 23 can be produced solely by punching and bending.
  • this is produced by means of a deep-drawing process. It is in the mounting portion 25 which extends flat in the radial direction 3, at the radially outer end 31 in
  • Axial direction 4 a punch pressed, which completely penetrates the material of the mounting portion 25.
  • a cone 51 are formed. This cone 50 may be formed over the entire axial extent 52 of the receiving sleeve 27, or only over a partial area. The cone 51 serves as an insertion aid for the
  • Coil wire ends 19 If the receiving sleeve 27 is formed as a deep-drawn part, this is formed continuously closed over its entire circumference.
  • the receiving sleeves 27 can also be prepared in a combination of thermoforming process and bending-punching process.
  • FIG. 6 shows a further exemplary embodiment of a fully assembled electrical machine 10, in which the interconnection plate 22 is connected both to the coil wire ends 19 and to the electrical contacts 30 of the connection plug 37.
  • the spacers 42 of the interconnection plate 22 are integrally formed on the radially outer edge thereof. These spacers 42 supported axially on the stator 16. in the
  • the spacers 42 are applied directly to the coil support elements 36, on which the electrical windings 17 are wound.
  • an insulating mask 61 for the electrical windings 17 is arranged radially inside the spacers 42.
  • the bearing plate 54 is arranged, which is welded, for example, at its radially outer edge with the pole pot 15.
  • the bearing plate 54 has a bearing seat 55 which engages axially in the central recess 44 of the wiring plate 22.
  • a rolling bearing 56 is received, by means of which the rotor shaft 20 is rotatably mounted in the stator 16.
  • the roller bearing 56 is axially in the same plane as the
  • Interconnecting plate 22 arranged so that the electric machine 10 in
  • Axial direction 4 is very compact.
  • the interconnection plate 22 is pressed axially against the stator 16 by the end shield 54. These are on the
  • End shield 54 integrally formed axially acting spring tabs, or an axial spring ring between the bearing plate 54 and the wiring plate 22 biased.
  • End shield 54 has in the exemplary embodiment individual radial webs 59, between which the receiving sleeves 27 project axially upwards.
  • the coil wire ends 19 are inserted, which are slightly upwards, for example, in the axial direction 4 on the receiving sleeve 27 addition.
  • a plug housing 33 is arranged, on which an unspecified outer connector 37 for powering the electrical Machine 10 is arranged.
  • electrical contacts 30 are arranged on the inside, which are connected to the connection pins 26 of
  • Circuit board 22 are connected.
  • the electrical contacts 30 extend axially as contact lugs 34, so that they are arranged immediately adjacent to the connection pins 26 and then, for example, welded together.
  • the interconnection plate 22 relative to the bearing plate 54 - as also preferably relative to the stator 16 - positioning elements 60 on.
  • the plug housing 33 is positioned relative to the bearing plate 54 by means of a rotation lock. On average by the
  • Plastic body 21, the connecting portions 24 of different conductor elements 23, 13 can be seen in cross section.
  • the flattened cross sections 58 are offset relative to one another both with respect to the axial direction 4 and with respect to the radial direction 3.
  • 4 individual conductor elements 23 in exactly two axial planes 8, 9 are arranged.
  • axial holes can be seen in the plastic body 21, which result from holding elements for the conductor elements 23, 13 in the injection molding tool. However, these axial holes do not affect the insulating effect of the plastic body 21 for the conductor elements 23.
  • stator 16 may also have more or fewer coils 17, which may also be formed as individual coils 17.
  • receiving sleeves 27 the stator 16 may also have more or fewer coils 17, which may also be formed as individual coils 17.
  • connection pins 26 to the corresponding connector housing 33rd
  • the electric machine 10 is preferably used in a transmission drive unit as an engine compartment actuator in the motor vehicle,

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

L'invention concerne une plaque de câblage (22) d'un stator (16) d'une machine électrique (10), ainsi qu'un procédé de fabrication d'une machine électrique (10). La plaque de câblage (22) permet de mettre en contact des enroulements électriques (17) du stator (16) avec un connecteur de branchement (37) en vue de leur alimentation électrique. La plaque de câblage (22) comprend des éléments conducteurs (23), qui comprennent des secteurs de branchement (24) s'étendant dans la direction circonférentielle (2) et reliant les enroulements (17), ayant des sections transversales (58) aplaties - en particulier approximativement rectangulaires - dont la dilatation dans la direction axiale (4) est moindre que leur dilatation dans la direction radiale (3). Les secteurs de branchement (24) sont recouverts par un corps en matière synthétique (21) de forme annulaire, moulé par injection, qui isole les éléments conducteurs (23) les uns des autres.
PCT/EP2017/056522 2016-03-24 2017-03-20 Plaque de câblage pour un stator d'une machine électrique et procédé de fabrication d'une machine électrique WO2017162568A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016204935.6 2016-03-24
DE102016204935.6A DE102016204935A1 (de) 2016-03-24 2016-03-24 Verschaltungsplatte für einen Stator einer elektrischen Maschine und Verfahren zum Herstellen einer elektrischen Maschine

Publications (1)

Publication Number Publication Date
WO2017162568A1 true WO2017162568A1 (fr) 2017-09-28

Family

ID=58361014

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/056522 WO2017162568A1 (fr) 2016-03-24 2017-03-20 Plaque de câblage pour un stator d'une machine électrique et procédé de fabrication d'une machine électrique

Country Status (2)

Country Link
DE (1) DE102016204935A1 (fr)
WO (1) WO2017162568A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019179558A1 (fr) * 2018-03-20 2019-09-26 Schaeffler Technologies AG & Co. KG Interconnexion de « n » barres omnibus dans un moteur électrique
WO2020015856A1 (fr) * 2018-07-19 2020-01-23 Sew-Eurodrive Gmbh & Co. Kg Moteur électrique comprenant une unité de câblage et procédé de réalisation d'un moteur électrique comprenant une unité de câblage
FR3084538A1 (fr) * 2018-07-30 2020-01-31 Valeo Equipements Electriques Moteur Machine electrique tournante
EP3758196A1 (fr) * 2019-06-26 2020-12-30 Atieva, Inc. Anneau de connecteur d'enroulement de moteur
CN113381213A (zh) * 2020-02-25 2021-09-10 安徽威灵汽车部件有限公司 汇流排主体、汇流排、电机、电动助力转向系统和车辆
EP3985845A4 (fr) * 2019-08-20 2022-09-07 Anhui Welling Auto Parts Co., Ltd. Barre omnibus, corps principal de barre omnibus, moteur, système de direction assistée électrique et véhicule

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DE102018209493A1 (de) * 2018-06-14 2019-12-19 Robert Bosch Gmbh Elektronisch kommutierter Motor
DE102019004589A1 (de) 2018-07-19 2020-01-23 Sew-Eurodrive Gmbh & Co Kg Elektromotor mit einer Verschaltungseinheit und Verfahren zur Herstellung eines Elektromotors mit einer Verschaltungseinheit
DE102019004591A1 (de) 2018-07-19 2020-01-23 Sew-Eurodrive Gmbh & Co Kg Elektromotor mit einer Verschaltungseinheit und Verfahren zur Herstellung eines Elektromotors mit einer Verschaltungseinheit
DE102019111340A1 (de) 2019-05-02 2020-11-05 Schaeffler Technologies AG & Co. KG Stator und Verfahren zur Herstellung eines Stators
DE102020121273A1 (de) 2020-08-13 2022-02-17 Schaeffler Technologies AG & Co. KG Elektrische Maschine mit Schutzmechanismus an einer Schweißverbindung; sowie Verfahren zur Montage der elektrischen Maschine
DE102020129828A1 (de) 2020-11-12 2022-05-12 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Stator einer elektrischen Maschine
DE102021123833B3 (de) * 2021-09-15 2023-03-16 Schaeffler Technologies AG & Co. KG Elektrische Maschine
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

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WO2009113520A1 (fr) * 2008-03-11 2009-09-17 日本電産株式会社 Moteur
US20120319512A1 (en) * 2010-03-03 2012-12-20 Nidec Corporation Busbar unit and motor
DE102012224153A1 (de) 2012-12-21 2014-06-26 Robert Bosch Gmbh Stator für eine elektrische Maschine
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DE102015200093A1 (de) 2015-01-07 2016-07-07 Robert Bosch Gmbh Verschaltungsplatte eines Stators für eine elektrische Maschine und Verfahren zum Herstellen einer solchen

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JP4789676B2 (ja) * 2006-03-29 2011-10-12 トヨタ自動車株式会社 回転電機用端末モジュールおよび回転電機
DE102013003024A1 (de) * 2013-02-22 2014-08-28 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Elektromotor, insbesondere einer Fahrzeugkomponente

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JPH06233483A (ja) * 1993-01-29 1994-08-19 Honda Motor Co Ltd ステータに於けるコイル巻線の結線構造
WO2009113520A1 (fr) * 2008-03-11 2009-09-17 日本電産株式会社 Moteur
US20120319512A1 (en) * 2010-03-03 2012-12-20 Nidec Corporation Busbar unit and motor
DE102012224153A1 (de) 2012-12-21 2014-06-26 Robert Bosch Gmbh Stator für eine elektrische Maschine
US20160036187A1 (en) * 2013-03-08 2016-02-04 Kayaba Industry Co., Ltd. Manufacturing method of bus bar unit
DE102015200093A1 (de) 2015-01-07 2016-07-07 Robert Bosch Gmbh Verschaltungsplatte eines Stators für eine elektrische Maschine und Verfahren zum Herstellen einer solchen

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019179558A1 (fr) * 2018-03-20 2019-09-26 Schaeffler Technologies AG & Co. KG Interconnexion de « n » barres omnibus dans un moteur électrique
CN111869055A (zh) * 2018-03-20 2020-10-30 舍弗勒技术股份两合公司 电动机中“n”个导电轨的互连件
WO2020015856A1 (fr) * 2018-07-19 2020-01-23 Sew-Eurodrive Gmbh & Co. Kg Moteur électrique comprenant une unité de câblage et procédé de réalisation d'un moteur électrique comprenant une unité de câblage
CN112425042A (zh) * 2018-07-19 2021-02-26 索尤若驱动有限及两合公司 具有接线单元的电机和用于制造具有接线单元的电机的方法
CN112425042B (zh) * 2018-07-19 2024-12-31 索尤若驱动有限及两合公司 具有接线单元的电机和用于制造具有接线单元的电机的方法
FR3084538A1 (fr) * 2018-07-30 2020-01-31 Valeo Equipements Electriques Moteur Machine electrique tournante
WO2020025405A1 (fr) * 2018-07-30 2020-02-06 Valeo Equipements Electriques Moteur Machine électrique tournante
US12212202B2 (en) 2018-07-30 2025-01-28 Valeo Equipements Electriques Moteur Rotary electrical machine
EP3758196A1 (fr) * 2019-06-26 2020-12-30 Atieva, Inc. Anneau de connecteur d'enroulement de moteur
US11133719B2 (en) 2019-06-26 2021-09-28 Atieva, Inc. Motor winding connector ring
EP3985845A4 (fr) * 2019-08-20 2022-09-07 Anhui Welling Auto Parts Co., Ltd. Barre omnibus, corps principal de barre omnibus, moteur, système de direction assistée électrique et véhicule
CN113381213A (zh) * 2020-02-25 2021-09-10 安徽威灵汽车部件有限公司 汇流排主体、汇流排、电机、电动助力转向系统和车辆

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