EP3912232B1 - Module de bague collectrice encliquetable - Google Patents

Module de bague collectrice encliquetable Download PDF

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Publication number
EP3912232B1
EP3912232B1 EP20700171.0A EP20700171A EP3912232B1 EP 3912232 B1 EP3912232 B1 EP 3912232B1 EP 20700171 A EP20700171 A EP 20700171A EP 3912232 B1 EP3912232 B1 EP 3912232B1
Authority
EP
European Patent Office
Prior art keywords
module
slipring
holder
slipring module
fingers
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.)
Active
Application number
EP20700171.0A
Other languages
German (de)
English (en)
Other versions
EP3912232A1 (fr
Inventor
Stephan Löhrmann
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.)
Schleifring GmbH
Original Assignee
Schleifring GmbH
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Publication date
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Publication of EP3912232A1 publication Critical patent/EP3912232A1/fr
Application granted granted Critical
Publication of EP3912232B1 publication Critical patent/EP3912232B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • H01R39/14—Fastenings of commutators or slip-rings to shafts
    • 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
    • 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
    • H01R39/643—Devices for uninterrupted current collection through ball or roller bearing

Definitions

  • the invention relates to a slipring module bearing sliding tracks of a slipring. Sliprings are used for transferring electrical signals and power between rotating parts.
  • EP 1 320 155 A2 A slipring module held by cylindrical metal tube is disclosed in EP 1 320 155 A2 .
  • This assembly is comparatively stiff and solid. The disadvantage is a high weight and the expensive and complex manufacturing process.
  • US 9,742,135 B2 discloses a slipring having sliding tracks mounted to a structured shaft. This is also complex and expensive.
  • EP 1482 604 A2 discloses a method of gluing multiple contact rings together with a flange. The flange is used as a chuck in a lathe and as mechanical reference. This method is also complex and expensive.
  • WO 90/05395 discloses a slip ring assembly relating to the preamble of claims 1 and 2.
  • the body has a circular cylindrical shape around a center axis and comprises an electrically insulating material.
  • the body may have structural or structure enhancing metal components. It is preferred, if the body comprises insulating material only.
  • the insulating material may be any suitable monomer or preferably polymer, for example epoxy or polyurethane.
  • the insulating material may also comprise a preferably non-conductive filler, for example ceramic, aluminum oxide or others.
  • the modules might also be strengthened by glass fiber mats or metal wire meshes incorporated into the insulating material.
  • the modules may be hollow bodies with free inner bores.
  • the slip-ring module For mounting the slipring module into a slipring device, at least one slip-ring holder is provided. Preferably, there are two slipring holders. The slip-ring holders are attached to one or both ends of the slipring module like end caps.
  • the slip-ring module has a groove at least at one end, preferably at both ends.
  • the groove preferably is at the outside of the cylinder - shaped body, but it may also be at the inner side.
  • the groove may have a distance from the end in a range of 2mm and 20mm, preferably between 3mm and 10mm, most preferably between 5mm and 8mm.
  • the groove may have a depth in a range of 1mm to 10mm, preferably between 2mm and 6mm, most preferably between 3mm and 5mm.
  • the at least one holder preferably comprises a plastic material, preferably made from thermosets or thermoplastics. Preferably, it is an injection molded part or a 3D printed part. Alternatively, it may be made of any metal or any other material as long as it provides enough flexibility to the fingers to snap into a groove of the module.
  • the at least one holder has a round outer shape. It may have a free inner bore. This inner bore may be used to guide wires to the module or to insert another rotary joint like another slipring, a RF joint, an optical joint or a media joint.
  • the at least one holder has a bearing seat for a ball bearing. Such a ball bearing may provide a rotatable support within a housing.
  • the at least one sealing ring preferably comprises an elastic material like a polymer or rubber.
  • the at least one sealing ring may be compressed by the holding force generated by the fingers.
  • the at least one sealing ring generates friction between the module and the holder, such that there is no movement and specifically no rotational movement between the at least one holder and the module. This increases mechanical stability.
  • the sealing ring could also be realized by 3D printing a ring shaped or wavy structure into the groove of the module or onto the modules front side.
  • a slipring assembly comprising a module assembly which further comprises a slipring module and at least one, preferably two holders.
  • the assembly may further comprise a stationary part holding a first holder by a first bearing and a rotating part holding a second holder by a second bearing.
  • the slipring holders may be coded by different pilot diameters lathed into the front side to prevent a wrong combination of slipring holder and module or a wrong orientation of the module.
  • the interface between slipring module and slipring holder may have integrated teeth oriented axially or radially to transfer torque or to code different modules (e.g. for data, signal or power transmission) and ensure their correct orientation during assembly.
  • FIG 2 a sectional view of a slip-ring assembly 200 is shown.
  • the slip-ring assembly 200 comprises a stationary part 210 and a rotating part 220 forming a housing for the slip-ring module assembly 100 and holding the slip-ring module assembly 100.
  • the slip-ring module assembly 100 comprises at least a slip-ring module body 105 and a plurality of sliding tracks 120.
  • the slip-ring module assembly 100 preferably is cylindrical and rotational symmetrical about an axis of rotation 101. There may be minor deviations like the sliding track contact pins 122.
  • figure 3 a detail of figure 2 is shown. Here, the section comprising a finger 181 at the second holder 170 is shown enlarged.
  • a modified finger 181 is shown.
  • the protrusion 192 has an undercut which may interface with a protrusion in groove 182 and which may lock the finger 181 within the module 105.
  • Figure 8 shows a double slipring module assembly.
  • two modules 105, 315 are connected together by a double holder 320.
  • the double holder has fingers 181 on two axially opposing sides and around a common rotation axis.
  • here may be holders 160, 170 (not shown) at the ends of the modules.

Landscapes

  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
  • Rolling Contact Bearings (AREA)
  • Power Steering Mechanism (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Claims (15)

  1. Ensemble de modules de bague collectrice (100) comprenant un module de bague collectrice (105) et un premier support (160) et/ou un second support (170),
    le module de bague collectrice (105) ayant une forme cylindrique autour d'un axe central (101) et ayant une première extrémité (175a) et une seconde extrémité (175b) opposée à la première extrémité, et comprenant :
    - un corps de module de bague collectrice (110), le corps comprenant au moins un matériau électriquement isolant,
    - au moins une gorge de coulissement (120), l'au moins une gorge de coulissement (120) comprenant un matériau électriquement conducteur,
    caractérisé en ce que
    a) le module de bague collectrice (105) a une première rainure radiale (182a) à la première extrémité (175a), et le premier support (160) se conforme à la première extrémité (175a) du module de bague collectrice (105), et le premier support (160) comprend une pluralité de doigts (181) arrivant dans la première rainure radiale (182) lorsqu'ils sont attachés au module de bague collectrice (105), les doigts (181) verrouillant le premier support (160) sur le module (105),
    et/ou
    b) le module de bague collectrice (105) a une seconde rainure radiale (182b) à la seconde extrémité (175b), et le second support (170) se conforme à la seconde extrémité (175b) du module de bague collectrice (105), et le second support (170) comprend une pluralité de doigts (181) arrivant dans la seconde rainure radiale (182) lorsqu'ils sont attachés au module de bague collectrice (105), les doigts (181) verrouillant le second support (170) sur le module (105).
  2. Ensemble de modules de bague collectrice (100) comprenant un premier module de bague collectrice (105), un second module de bague collectrice (315) et un double support (320),
    le premier module de bague collectrice (105) et le second module de bague collectrice (315) ayant chacun une forme cylindrique autour d'un axe central (101) et ayant chacun une première extrémité (175a) et une seconde extrémité (175b) opposée à la première extrémité, et comprenant en outre chacun :
    - un corps de module de bague collectrice (110), le corps comprenant au moins un matériau électriquement isolant,
    - au moins une gorge de coulissement (120), l'au moins une gorge de coulissement (120) comprenant un matériau électriquement conducteur,
    caractérisé en ce que
    le premier module de bague collectrice (105) a une première rainure radiale (182a) à la première extrémité, et le second module de bague collectrice (315) a une seconde rainure radiale (182b) à la seconde extrémité, et
    le double support (320) a deux extrémités axialement opposées (331, 332) comprenant une pluralité de doigts (181) autour d'un axe central (101) commun, et une première extrémité de double support (331) se conforme à la première extrémité du premier module de bague collectrice (105), la pluralité de doigts sur la première extrémité de double support arrivent dans la première rainure radiale (182) lorsqu'ils sont attachés au premier module de bague collectrice (105),
    et une seconde extrémité de double support (332) se conforme à la seconde extrémité du second module de bague collectrice (315), la pluralité de doigts sur la seconde extrémité de double support arrivent dans la seconde rainure radiale (182) lorsqu'ils sont attachés au second module de bague collectrice (315),
    les doigts verrouillent le double support (320) sur les modules (105, 315).
  3. Ensemble de modules de bague collectrice (100) selon la revendication 1,
    caractérisé en ce que
    l'un ou l'autre du premier support (160) et du second support (170) est un double support (320),
    l'ensemble de modules de bague collectrice (100) comprenant en outre un premier module de bague collectrice (105) et un second module de bague collectrice (315),
    le second module de bague collectrice (315) ayant une forme cylindrique autour d'un axe central (101) et ayant une première extrémité (175a) et une seconde extrémité (175b) opposée à la première extrémité, et le second module de bague collectrice (315) comprenant en outre :
    - un corps de module de bague collectrice (110), le corps comprenant au moins un matériau électriquement isolant,
    - au moins une gorge de coulissement (120), l'au moins une gorge de coulissement (120) comprenant un matériau électriquement conducteur,
    caractérisé en ce que
    le premier module de bague collectrice (105) a une première rainure radiale (182a) à la première extrémité, et le second module de bague collectrice (315) a une seconde rainure radiale (182b) à la seconde extrémité, et
    le double support (320) a deux extrémités axialement opposées (331, 332) comprenant une pluralité de doigts (181) autour d'un axe central (101) commun, et une première extrémité (331) de double support se conforme à la première extrémité du premier module de bague collectrice (105), la pluralité de doigts sur la première extrémité de double support arrivent dans la première rainure radiale (182) lorsqu'ils sont attachés au premier module de bague collectrice (105),
    et une seconde extrémité de double support (332) se conforme à la seconde extrémité du second module de bague collectrice (315), la pluralité de doigts sur la seconde extrémité de double support arrivent dans la seconde rainure radiale (182) lorsqu'ils sont attachés au second module de bague collectrice (315),
    les doigts verrouillent le double support (320) sur les modules (105, 315).
  4. Ensemble de modules de bague collectrice (100) selon les revendications 1 et 2 ou la revendication 3, comprenant un double support (320) entre une seconde extrémité d'un premier module de bague collectrice (105) et une première extrémité d'un second module de bague collectrice (315), et
    un premier support (160) à une première extrémité du premier module de bague collectrice (105) et un second support (170) à une seconde extrémité du premier module de bague collectrice (315).
  5. Ensemble de modules de bague collectrice (100) selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le module de bague collectrice (105) comprend une pluralité de gorges de coulissement (120) isolées les unes des autres.
  6. Ensemble de modules de bague collectrice (100) selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    au moins une face d'extrémité (130) du corps de module (110) a un verrou pour recevoir des ressorts contrarotatifs de l'au moins un support (160).
  7. Ensemble de modules de bague collectrice (100) selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'au moins une face d'extrémité (130) du corps de module (110) a une rainure pour une bague d'étanchéité (184).
  8. Ensemble de modules de bague collectrice (100) selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    au moins l'un des supports (160, 170) a une face concordant avec au moins une face d'extrémité (130) du corps de module (110) comprenant une rainure pour une bague d'étanchéité (184).
  9. Ensemble de modules de bague collectrice (100) selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    au moins une bague d'étanchéité (184) est située entre au moins une face d'extrémité (130) du corps de module (110) et au moins l'un des supports (160, 170).
  10. Ensemble de modules de bague collectrice (100) selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    au moins l'un des supports (160, 170) a une rainure (186) pour une bague de verrouillage de tige (185).
  11. Ensemble de modules de bague collectrice (100) selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    au moins l'un des supports (160, 170) a un siège de palier pour un palier à billes (211, 221) ou un palier lisse.
  12. Ensemble de modules de bague collectrice (100) selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    au moins l'un des supports (160, 170, 310) comporte un ressort axial (311, 321) pour exercer une force axiale entre l'au moins un support et le module de bague collectrice.
  13. Ensemble de modules de bague collectrice (100) selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    au moins deux modules de bague collectrice (105, 315) sont conjointement reliés par un double support comprenant une pluralité de doigts sur deux côtés axialement opposés et autour d'un axe central commun.
  14. Ensemble de modules de bague collectrice (100) selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'ensemble de modules de bague collectrice (100) présente un alésage interne libre.
  15. Ensemble de bague collectrice (200) comprenant un ensemble de modules de bague collectrice (100) selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    une partie fixe (210) maintenant le premier support (160) par un premier palier (211) et une partie rotative (220) maintenant le second support (170) par un second palier (221) sont fournies.
EP20700171.0A 2019-01-17 2020-01-13 Module de bague collectrice encliquetable Active EP3912232B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19152302.6A EP3683902B1 (fr) 2019-01-17 2019-01-17 Module de bague collectrice encliquetable
PCT/EP2020/050668 WO2020148221A1 (fr) 2019-01-17 2020-01-13 Module d'anneau de glissement à encliquetage

Publications (2)

Publication Number Publication Date
EP3912232A1 EP3912232A1 (fr) 2021-11-24
EP3912232B1 true EP3912232B1 (fr) 2024-07-03

Family

ID=65036676

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19152302.6A Active EP3683902B1 (fr) 2019-01-17 2019-01-17 Module de bague collectrice encliquetable
EP20700171.0A Active EP3912232B1 (fr) 2019-01-17 2020-01-13 Module de bague collectrice encliquetable

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP19152302.6A Active EP3683902B1 (fr) 2019-01-17 2019-01-17 Module de bague collectrice encliquetable

Country Status (3)

Country Link
EP (2) EP3683902B1 (fr)
CN (1) CN112868142B (fr)
WO (1) WO2020148221A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023206469A1 (de) 2023-07-07 2025-01-09 Vitesco Technologies Germany Gmbh Schleifringmodul, Rotor für eine fremderregte elektrische Maschine und Verfahren zur Herstellung eines Rotors

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2524212A1 (fr) * 1982-03-23 1983-09-30 Mecanismes Comp Ind De Collecteur pour moteur electrique miniature
DE3838436C2 (de) * 1988-11-12 2002-09-19 Bosch Gmbh Robert Schleifringanordnung
GB2339635B (en) * 1998-06-24 2003-01-29 Jasun Engineering Ltd Slip ring assembly
DE10161740B4 (de) 2001-12-15 2006-01-26 Stemmann-Technik Gmbh Schleifringübertrager
DE10324708A1 (de) 2003-05-30 2004-12-16 Ltn Servotechnik Gmbh Schleifringelement und Verfahren zu dessen Herstellung
JP2008092706A (ja) * 2006-10-03 2008-04-17 Nippon Densan Corp ブラシレスモータおよびこれを搭載するディスク駆動装置
DK200801474A (en) * 2008-10-27 2009-11-19 Vestas Wind Sys As Slip ring assembly with shaft holder
DE102012220293A1 (de) 2012-11-07 2014-05-08 Wobben Properties Gmbh Schleifringübertrager
CN205985694U (zh) * 2016-07-12 2017-02-22 杭州欣扬科技有限公司 一种分体式过孔导电滑环

Also Published As

Publication number Publication date
EP3912232A1 (fr) 2021-11-24
CN112868142B (zh) 2023-11-07
EP3683902B1 (fr) 2022-07-27
WO2020148221A1 (fr) 2020-07-23
CN112868142A (zh) 2021-05-28
EP3683902A1 (fr) 2020-07-22

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