EP2019460B1 - Drehbare elektrische Schleifringanordnung - Google Patents

Drehbare elektrische Schleifringanordnung Download PDF

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Publication number
EP2019460B1
EP2019460B1 EP08157572A EP08157572A EP2019460B1 EP 2019460 B1 EP2019460 B1 EP 2019460B1 EP 08157572 A EP08157572 A EP 08157572A EP 08157572 A EP08157572 A EP 08157572A EP 2019460 B1 EP2019460 B1 EP 2019460B1
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EP
European Patent Office
Prior art keywords
rotor
ring assembly
slip ring
stator
transmission unit
Prior art date
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Active
Application number
EP08157572A
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English (en)
French (fr)
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EP2019460A3 (de
EP2019460A2 (de
Inventor
Giorgio Daidone
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Ravioli SpA
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Ravioli SpA
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Publication date
Application filed by Ravioli SpA filed Critical Ravioli SpA
Publication of EP2019460A2 publication Critical patent/EP2019460A2/de
Publication of EP2019460A3 publication Critical patent/EP2019460A3/de
Application granted granted Critical
Publication of EP2019460B1 publication Critical patent/EP2019460B1/de
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/64—Devices for uninterrupted current collection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/02—Details for dynamo electric machines
    • H01R39/08—Slip-rings

Definitions

  • the present invention relates to a rotary electrical slip ring assembly.
  • stator When energy has to be transmitted between a fixed source and a rotary electrical machine, it is known to use appropriate devices provided with a part (the stator) arranged for coupling to a fixed source, and a part (the rotor) arranged for coupling to the rotary electrical machine; the stator and rotor are coupled together by a plurality of sliding contacts.
  • a rotary electrical machine usually requires the transmission of very high currents (for example for powering the machine) and also of low intensity currents (for example for signals for controlling and verifying machine operation).
  • DE2306792 (A1) describes a rotary electrical slip ring assembly according to the precharacterizing portion of claim 1.
  • US 2003176082 (A1) describes an improved electrical cylindrical circuit collector ring assembly.
  • the assembly includes an axial stack of multiple torodial-shaped spacer members and at least one electrical conductor ring member.
  • the spacer members each include one insulating face and one electrically conductive face.
  • the ring assembly also includes a general adhesive for mounting the insulator face to the ring members and an electrically conductive adhesive for mounting the conductive face to the ring members and for mounting ring members to ring members where applicable.
  • the ring assembly also includes a radial extension on each of the conductive faces of the spacer members beyond the ring member diameter providing for an electrical connecting point. Finally, radial tabs provide lead wire channels and means of improved electrical shielding.
  • the technical aim of the present invention is therefore to provide a rotary slip ring assembly by which the stated technical drawbacks of the known art are eliminated.
  • an object of the invention is to provide a rotary slip ring assembly of small dimensions (in particular along its axis of rotation or height).
  • the rotary slip ring assembly of the present invention also has a lesser weight than a traditional slip ring assembly with the same number of sliding contacts.
  • this shows a rotary slip ring assembly indicated overall by the reference numeral 1.
  • the electrical slip ring assembly 1 comprises a first electrical energy transmission unit 2 defined by a first rotor 3 slidably associated with a first stator 4.
  • the slip ring assembly 1 comprises a second electrical energy transmission unit 6 having a structure similar to that of the first unit 2 and hence defined by a second rotor associated with a second stator.
  • the second electrical energy transmission unit 6 is housed in a chamber 7 within the first rotor 3.
  • the chamber 7 of the first rotor 3 is formed on the same axis 9 as the first rotor 3 and is symmetrical about this axis 9.
  • the first rotor 3, the second rotor and the chamber 7 are all mutually coaxial (about the axis 9), the first rotor 3 and the second rotor being fixed to the same shaft 11.
  • the slip ring assembly 1 presents a frame composed of a first and a second plate 15, 16 which oppose each other and are joined together by ties 17, the first stator 4 being fixed between the first and second plate 15, 16.
  • the first plate 15 presents a hole 19 on the axis 9 of the first and second rotor, the conductor cables (not shown) connected to the second stator (of the transmission unit 6) passing through this hole 19.
  • the second electrical energy transmission unit 6 is positioned at the hole 19 and is fixed to the first plate 15.
  • the first rotor 3 is defined by first electrically conducting rings 25 electrically insulated from each other by rings of insulating material (typically plastic material) 26.
  • the first stator 4 comprises first electrical contacts 27 each connected to first brushes 29 slidable on the first conducting rings 25.
  • the second rotor presents a structure identical to that of the first rotor 3 and is defined by second electrically conducting rings insulated electrically from each other; in the same manner the second stator presents a structure similar to that of the first stator 4 and comprises second electrical contacts each connected to second brushes slidable on the second conducting rings.
  • the chamber 7 is defined within the first conducting rings 25 (in a position corresponding with the first plate 15 and the hole 19).
  • the electric cables (not shown) are firstly connected to achieve the correct electrical connections between the various parts of the electrical machine.
  • the first transmission unit 2 is able to transmit greater current intensities than the second transmission unit 6 because of the greater dimensions of the first and second brushes and of the first and second rings.
  • power for the electrical machine and the high-power signals is preferably provided via the first transmission unit 2, while power for the control and verification signals is preferably provided via the second transmission unit 6.
  • Operation is similar to that of a rotary slip ring assembly of traditional type.
  • the number of transmission units inserted one into the other can be greater than two; for example in the case of groups of electrical signals of mutually different intensity, a slip ring assembly provided with numerous transmission units could be provided, each within another and each suitable for transferring a predetermined current intensity.
  • the plates 15 and 16 can be of circular shape (simplifying its construction) and can be of plastic material.

Landscapes

  • Motor Or Generator Current Collectors (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Multiple-Way Valves (AREA)
  • Valve Housings (AREA)

Claims (9)

  1. Drehbarer elektrischer Schleifringkörper (1) umfassend eine erste Übertragungseinheit (2) für elektrische Energie, welche durch einen ersten Rotor (3) definiert ist, welcher einem ersten Stator (4) verschiebbar zugeordnet ist, mindestens eine zweite Übertragungseinheit (6) für elektrische Energie, welche durch einen zweiten Rotor definiert ist, der einem zweiten Stator zugeordnet ist, wobei die zweite Übertragungseinheit (6) für elektrische Energie in einer Kammer (7) des ersten Rotors (3) untergebracht ist, dadurch gekennzeichnet, dass der erste Rotor (3) durch gegeneinander elektrisch isolierte erste elektrisch leitende Ringe (25) definiert ist, wobei der erste Stator (4) erste elektrische Kontakte (27) umfasst, die jeweils mit auf den ersten leitenden Ringen (25) verschiebbaren ersten Bürsten (29) verbunden sind, wobei der zweite Rotor durch gegeneinander elektrisch isolierte zweite leitende Ringe definiert ist, wobei der zweite Stator zweite elektrische Kontakte umfasst, die jeweils mit auf den zweiten leitenden Ringen verschiebbaren zweiten Bürsten verbunden sind, wobei die Kammer (7) innerhalb der ersten leitenden Ringe (25) definiert ist.
  2. Schleifringkörper (1) nach Anspruch 1, dadurch gekennzeichnet, dass die Kammer (7) des ersten Rotors (3) auf der Achse (9) des ersten Rotors (3) vorgesehen ist und in Bezug auf diese Achse (9) symmetrisch ist.
  3. Schleifringkörper (1) nach einem oder mehreren der voranstehenden Ansprüche, dadurch gekennzeichnet, dass der erste Rotor (3), der zweite Rotor und die Kammer (7) koaxial sind.
  4. Schleifringkörper (1) nach einem oder mehreren der voranstehenden Ansprüche, dadurch gekennzeichnet, dass der erste Rotor (3) und der zweite Rotor an ein und derselben Welle (1) befestigt sind.
  5. Schleifringkörper (1) nach einem oder mehreren der voranstehenden Ansprüche, dadurch gekennzeichnet, dass er ein Gestell bereitstellt, welches aus einer ersten und einer zweiten Platte (15, 16), die einander gegenüberliegen und aneinander durch Bindebalken (17) gekoppelt sind, zusammengesetzt ist, wobei der erste Stator (4) zwischen der ersten und zweiten Platte (15, 16) befestigt ist.
  6. Schleifringkörper (1) nach einem oder mehreren der voranstehenden Ansprüche, dadurch gekennzeichnet, dass mindestens die erste Platte (15) ein Loch (19) auf der Achse (9) des ersten und zweiten Rotors bereitstellt, wobei mit dem zweiten Stator verbundene Leiterkabel durch das Loch (19) hindurch laufen.
  7. Schleifringkörper (1) nach einem oder mehreren der voranstehenden Ansprüche, dadurch gekennzeichnet, dass die zweite Übertragungseinheit (6) für elektrische Energie in einer mit dem Loch (19) korrespondierenden Position angeordnet ist.
  8. Schleifringkörper (1) nach einem oder mehreren der voranstehenden Ansprüche, dadurch gekennzeichnet, dass die zweite Übertragungseinheit (6) für elektrische Energie an der ersten Platte (15) befestigt ist.
  9. Schleifringkörper (1) nach Anspruch 1, dadurch gekennzeichnet, dass die Kammer (7) innerhalb des ersten Rotors (4) liegt.
EP08157572A 2007-07-24 2008-06-04 Drehbare elektrische Schleifringanordnung Active EP2019460B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT001486A ITMI20071486A1 (it) 2007-07-24 2007-07-24 Collettore elettrico rotante

Publications (3)

Publication Number Publication Date
EP2019460A2 EP2019460A2 (de) 2009-01-28
EP2019460A3 EP2019460A3 (de) 2010-09-29
EP2019460B1 true EP2019460B1 (de) 2011-10-26

Family

ID=39941473

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08157572A Active EP2019460B1 (de) 2007-07-24 2008-06-04 Drehbare elektrische Schleifringanordnung

Country Status (3)

Country Link
EP (1) EP2019460B1 (de)
AT (1) ATE531105T1 (de)
IT (1) ITMI20071486A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014071147A1 (en) * 2012-11-01 2014-05-08 Hypertronics Corporation Rotary electrical interconnect device

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011006820A1 (de) * 2011-04-06 2012-10-11 Schleifring Und Apparatebau Gmbh Vibrationsfeste Schleifringanordnung
DE102012220293A1 (de) * 2012-11-07 2014-05-08 Wobben Properties Gmbh Schleifringübertrager
CN103151670B (zh) * 2013-04-03 2016-03-02 上海航天测控通信研究所 一种适用于大功率传输的滚动汇流环装置
RU168408U1 (ru) * 2016-10-14 2017-02-02 Александр Сергеевич Гущин Токоприемник кольцевой
CN108321649B (zh) * 2017-12-29 2020-02-14 杭州驰宏科技有限公司 一种多功能组合旋转连接器及其装配方法
CN108666839A (zh) * 2018-05-18 2018-10-16 深圳超磁机器人科技有限公司 一种机器人关节集电环
CN113638843A (zh) * 2021-08-12 2021-11-12 新疆金风科技股份有限公司 组合式能量传输装置及风力发电机组

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT957144B (it) * 1972-02-14 1973-10-10 Franceschini R Gruppo elettrovariatore della velocita
FR2790614A1 (fr) * 1999-03-03 2000-09-08 Francois Carre Generateur de courant electrique a vitesse de rotation variable et tension et (ou) frequence constantes
US6767217B2 (en) * 2002-03-12 2004-07-27 Peter E. Jacobson Rotating electrical transfer components

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014071147A1 (en) * 2012-11-01 2014-05-08 Hypertronics Corporation Rotary electrical interconnect device

Also Published As

Publication number Publication date
EP2019460A3 (de) 2010-09-29
ITMI20071486A1 (it) 2009-01-25
EP2019460A2 (de) 2009-01-28
ATE531105T1 (de) 2011-11-15

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