EP3669442A1 - Système de stator muni d'une plaque d'extrémité de connexion pour moteur électrique et utilisation dudit système de stator - Google Patents

Système de stator muni d'une plaque d'extrémité de connexion pour moteur électrique et utilisation dudit système de stator

Info

Publication number
EP3669442A1
EP3669442A1 EP19700213.2A EP19700213A EP3669442A1 EP 3669442 A1 EP3669442 A1 EP 3669442A1 EP 19700213 A EP19700213 A EP 19700213A EP 3669442 A1 EP3669442 A1 EP 3669442A1
Authority
EP
European Patent Office
Prior art keywords
winding
windings
stator
verschaltetringe
end plate
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.)
Pending
Application number
EP19700213.2A
Other languages
German (de)
English (en)
Inventor
Thirza Weiser
Christian Rudel
Achim Honold
Hassan Ghodsi-Khameneh
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.)
Ebm Papst St Georgen GmbH and Co KG
Original Assignee
Ebm Papst St Georgen GmbH and 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 Ebm Papst St Georgen GmbH and Co KG filed Critical Ebm Papst St Georgen GmbH and Co KG
Publication of EP3669442A1 publication Critical patent/EP3669442A1/fr
Pending legal-status Critical Current

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
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/28—Layout of windings or of connections between windings
    • 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

  • Stator device with interconnected end plate for an electric motor and use of the stator device
  • the present invention relates to a stator for an electric motor according to the preamble of the main claim. Furthermore, the present invention relates to a use of such a stator device.
  • stator devices are well known; these have an angle carrier on or on which a plurality of stator windings wound with suitable angle wire are seated. Depending on the realization principle of the electric motor realized with such a stator device, these windings are connected or connected in a suitable manner; For example, it is known as a typical use of such a generic stator device to set up and to connect the stator device with the windings provided thereon for generating a rotating electrical field, which in turn can be connected to a suitable rotor rotatably mounted about the central axis (as external rotor or rotor) Inner rotor) cooperates.
  • a typical implementation of a stator device for generating a three-phase rotating field for realizing a three-phase motor requires the connection of the windings in star connection (Y-circuit), alternatively in a delta connection, again alternatively in mixed forms of these generic circuit topologies, in particular also several, typically in Circumferentially arranged circumferentially offset from each other of the windings in a typical three-phase system can be connected in parallel to each other.
  • the free wire ends typically realized with the winding connections
  • are led out separately and interconnectably arranged windings are connected via connection or connection arrangements in order to achieve the desired topology and, for example, Effecting parallel circuits to ensure a correct operating power supply of the overall arrangement.
  • stator devices having a larger number of individual windings, approximately twelve or more individually contactable windings on a winding support are not uncommon, but then an electrotechnically and mechanically complex connection structure arises, which not only, for instance for mechanized or automated purposes Production, is complicated to produce, but also space-related disadvantages and disadvantages in terms of failure and failure endangered operating environments has.
  • connection or carrier body voluminous, difficult in automated handling, especially in the actual (non-detachable) producing an electrical contact and not unproblematic in the fixation in the context of a respective motor to be assigned housing structure;
  • the present invention is therefore based on the object of further improving an upper conceptual stator device for an electric motor with regard to mounting and manufacturability and in terms of higher product quality.
  • annular deflecting disk is provided on the interconnected end disk, on the inside of which deflecting pegs which are arranged distributed circumferentially and distributed for deflecting the winding wire are integrally formed.
  • stator arrangement has therefore been supplemented according to the invention by a separate deflecting disk, which bears concentrically against the interconnected end disk at its side facing away from the winding carrier.
  • the deflecting pins arranged distributed circumferentially on the inside of the deflecting disk allow the winding wire to be deflected in such a way that it can be guided precisely through an opening of the welding hooks without a high winding tension.
  • the resulting strain relief of the winding wire and the mechanical relief of the welds on the welding hooks represent a further advantage with regard to increased manufacturing quality.
  • the locking rings are stacked in the interconnected end disk such that the winding terminals of a winding guided at least in sections parallel to the central axis and / or without crossover in each case have a welding hook formed radially on the inside of two of the locking rings to reach.
  • the present invention combines high reliability with simple and reliable manufacturability, since the radially inboard welding hooks with automation tools, such as a welding gun, can be achieved.
  • the number of contact connections to be produced is only determined by the number of windings which, in the preferred application, are simply configurable on the winding support and either by suitable design of a respective winding carrier, alternatively by only partial or suitable winding of a winding carrier with the desired number of windings, suitable for a particular purpose.
  • the deflecting pins in the axial direction and are axially aligned on the interstices of the welding hooks aligning bar, so that the winding wire on the deflection pin is feasible.
  • winding wires can thus advantageously be guided with strain relief over the deflecting pins and without crossovers parallel to the respective welding hooks of the locking rings and are contacted at the welding hooks so that the contact reliability is ensured in every configuration with simple manufacturability.
  • the locking rings are designed as punched parts and the switching end plate is designed as an injection-molded component with overmolded Verschaltringen.
  • the design of the Verschaltetringe as stamped parts simplifies their manufacturing process and allows their easy integration by reprecipitate, so that the boarding end plate with the embedded United shell rings can be produced as a compact injection molded part in large quantities kos ten officer.
  • the three stamped parts of the faceplate can be used as identical parts and underline a cost-optimized approach.
  • the integrally formed on the Verschaltringen welding hooks axially adjacent Verschaltetringe along a circumferential direction are arranged offset and / or jump offset.
  • the arrangement of the welding hooks of the Verschalttringe so that along the circumferential direction, these welding hooks are offset from each other.
  • Such an arrangement especially when used with a plurality of, for example, twelve or more windings, reduces the risk of unintentional contact between winding wires of different phases and, in addition, simplifies automated contacting, for example by the intervention of welding tongs.
  • the result of the present invention is a stator device which is suitable for any use, phase and pole numbers and number of turns, but in particular with more than six, preferably more than nine or even more than twelve windings considerable advantages in the beginning has described problem context.
  • the present invention is suitable for applications in automotive or manufacturing technology, where often mechanical or thermal stressing environmental conditions can be expected, but the invention is not limited to this application context and application.
  • the present invention is in principle independent of a realization of the stator device according to the invention for a Rotorrealisie- tion as internal or external rotor.
  • FIG. 1 shows a circuit diagram for clarifying the interconnection of the windings in the exemplary embodiment of FIG. 3 as a triangular circuit with four parallel windings each;
  • FIG. 2 shows a connection and winding diagram for the windings according to FIG. 1;
  • FIG. 3 is a perspective view of a stator device according to a first preferred embodiment of the present invention in a 12-pole configuration for an internal rotor;
  • Fig. 4 is a perspective view of a Verschaltrings with molded
  • Fig. 5 is a perspective view of a stacked arrangement of three
  • Fig. 6 is a perspective view of the interconnected end plate with integated, encapsulated Verschaltringen and Fig. 7 is a perspective view of the deflection plate.
  • FIG. 1 and FIG. 2 illustrate in a circuit diagram that the windings 1 'to 12' are supplied with a three-phase rotating field with the phases (terminal polarities) U, V, W, wherein in FIG. 1 or FIG In each case, four of the windings 1 'to 12' form a branch of the delta connection shown in parallel and are nested along the circumferential direction of a winding support 4 (FIG. 3) according to their numbering in the circumferential direction.
  • FIG. 3 is a perspective view of an inventive Statorvor device 2 is shown in 12-pin configuration for an internal rotor according to a first preferred embodiment of the present invention.
  • the stator device 2 comprises as essential components a winding support 4 for receiving the windings V to 12 ', a connected End plate 6 with embedded embedded Verschaltetringen 8u, 8 v, 8w and a deflection plate 10 with integrally formed deflection pin 12th
  • the twelve windings V to 12 ' are arranged in a circular shape for realizing the illustrated 12-pole stator device, the windings 1' to 12 'each being projected on a (not shown in detail, as generally known - adding) stator and yoke plate arrangement are provided and each winding 1 'to 12' inside pole pieces 14 are assigned to interact with a (not shown) inside running rotor.
  • the rotor is rotatably mounted about an axis of rotation, which corresponds to the central or (rotational) axis of symmetry of the device according to FIG.
  • FIG. 4 shows a perspective view of a locking ring 8u, 8v, 8w with molded welding hooks 20.
  • the Verschauftring 8u, 8v, 8w has four welding hooks 20, via which the two times four winding connections of the same terminal polarity U, V, W of the windings V to 12 'are connected together.
  • a switching ring 8u, 8v, 8w is thus provided for each of the terminal polarities U, V, W (phases of the three-phase power supply system).
  • the welding hooks 20 extend in the manner of a fork radially in the direction of the axis of rotation and permit an axial approach of the winding terminals as well as a non-detachable contacting by welding.
  • FIG. 5 shows a perspective view of a stacked arrangement of three Verschauftringen 8u, 8v, 8w.
  • Fig. 5 shows a perspective view of a stacked arrangement of three Verschauftringen 8u, 8v, 8w.
  • the circumferentially offset arrangement of the concentrically stacked Verschalttringe 8u, 8v, 8w which leads to a circumferentially equidistant distribution of integrally formed on the Verschalttrin- gene 8u, 8v, 8w welding hook 20.
  • FIG. 6 shows a perspective view of the interconnected end plate 6 with integrated, encapsulated Verschadtringen 8u, 8v, 8w.
  • the Verschalt-end plate 6 is realized as an injection molded component, wherein the shift rings 8u, 8v, 8w in a stacked arrangement against rotation and fixed in the axial direction in the interconnected End plate 6 are embedded.
  • Fig. 7 shows a deflection plate 10 in perspective view.
  • the deflection plate 10 has on its outer shell a diameter which is aligned with the outer shell portion of the winding support 6 and has at its inner diameter circumferentially distributed deflection pin 12.
  • the number and orientation of the deflection pin 12 is dimensioned in the present example so that in the circumferential direction immediately to the right and left next to a welding hook 20, a deflection pin 12 comes to rest Fig. 3).
  • the deflection plate 10 thus has 24 deflection pins 12, via which the winding wires can be guided largely relieved of strain.
  • a stator could be created, with the assembly and manufacturability was simplified by the integration of the Verschadtringe in a Verschalt- end plate on the one hand and the product quality could be increased by the separate deflection pulley for deflecting the winding wires.
  • the present invention is not limited to the illustrated embodiment of a 12-pole stator for internal rotor, but both the number of windings, as on their interconnection (about star-shaped, with other parallel circuits or with a completely different, even individually externally controlled assignment), as well as the present invention is equally suitable for external rotor, in which case the respective arrangement and assignment of the welding hooks would be done radially on the outside.

Landscapes

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

Abstract

L'invention concerne un système de stator (2) pour moteur électrique, comprenant une pluralité d'enroulements (1' à 12') placés sur un support d'enroulements (4), conçus pour coopérer par moteur électrique avec un rotor pouvant tourner autour d'un axe médian par rapport au support d'enroulements (4), s'étendant parallèlement les uns par rapport aux autres et parallèlement à l'axe médian et suivant un tracé en arc de cercle, et conçus pour venir individuellement en contact électrique avec les raccordements d'enroulement d'un fil d'enroulement. Au moins deux bagues de connexion (8u, 8v, 8w) électroconductrices en forme de plaque et/ou de bague sont associées aux enroulements (1' à 12') de telle manière que, isolées électriquement les uns des autres, elles sont agencées sur le support d'enroulements (4) dans une direction axiale de l'axe médian, de sorte que les raccordements d'enroulement présentant la même polarité de raccordement électrique (U ; V ; W) des enroulements (1' à 12) soient raccordés à la bague de connexion (8u, 8v, 8w) associée à ladite polarité de raccordement (U ; V ; W) pour la mise en contact commune extérieure à demeure au moyen de crochets à souder (20) formés sur la bague de connexion (8u, 8v, 8w) radialement sur la face intérieure. Les bagues de connexion (8u, 8v, 8w) sont intégrées dans une plaque d'extrémité de connexion (6) cylindrique creuse et une poulie de renvoi (10) annulaire présentant sur la face intérieure de la poulie de renvoi (10) des tourillons de renvoi (12) répartis sur la circonférence pour le renvoi des fils de l'enroulement est agencée en direction axiale sur la plaque d'extrémité de connexion (6).
EP19700213.2A 2018-01-30 2019-01-07 Système de stator muni d'une plaque d'extrémité de connexion pour moteur électrique et utilisation dudit système de stator Pending EP3669442A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018102033.3A DE102018102033A1 (de) 2018-01-30 2018-01-30 Statorvorrichtung mit Verschalt-Endscheibe für einen Elektromotor und Verwendung der Statorvorrichtung
PCT/EP2019/050264 WO2019149475A1 (fr) 2018-01-30 2019-01-07 Système de stator muni d'une plaque d'extrémité de connexion pour moteur électrique et utilisation dudit système de stator

Publications (1)

Publication Number Publication Date
EP3669442A1 true EP3669442A1 (fr) 2020-06-24

Family

ID=65010786

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19700213.2A Pending EP3669442A1 (fr) 2018-01-30 2019-01-07 Système de stator muni d'une plaque d'extrémité de connexion pour moteur électrique et utilisation dudit système de stator

Country Status (5)

Country Link
US (1) US11387702B2 (fr)
EP (1) EP3669442A1 (fr)
CN (1) CN111247717B (fr)
DE (1) DE102018102033A1 (fr)
WO (1) WO2019149475A1 (fr)

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DE102018102033A1 (de) * 2018-01-30 2019-08-01 Ebm-Papst St. Georgen Gmbh & Co. Kg Statorvorrichtung mit Verschalt-Endscheibe für einen Elektromotor und Verwendung der Statorvorrichtung
CN110931998B (zh) * 2019-11-18 2021-02-02 芜湖侨云友星电气工业有限公司 一种高压线束插接器
CN113541339A (zh) * 2020-04-14 2021-10-22 上海鸣志电器股份有限公司 一种注塑步进电机

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DE50313509D1 (de) * 2003-10-22 2011-04-14 Brose Fahrzeugteile Verschaltungseinheit für einen Stator eines Elektromotors
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KR20210017838A (ko) * 2019-08-09 2021-02-17 현대모비스 주식회사 구동모터용 환형터미널 유닛의 온도센서 조립구조 및 이의 조립방법
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Also Published As

Publication number Publication date
US20210075290A1 (en) 2021-03-11
US11387702B2 (en) 2022-07-12
CN111247717B (zh) 2023-08-01
WO2019149475A1 (fr) 2019-08-08
DE102018102033A1 (de) 2019-08-01
CN111247717A (zh) 2020-06-05

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