EP3683902B1 - Einrastbares schleifringmodul - Google Patents

Einrastbares schleifringmodul Download PDF

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Publication number
EP3683902B1
EP3683902B1 EP19152302.6A EP19152302A EP3683902B1 EP 3683902 B1 EP3683902 B1 EP 3683902B1 EP 19152302 A EP19152302 A EP 19152302A EP 3683902 B1 EP3683902 B1 EP 3683902B1
Authority
EP
European Patent Office
Prior art keywords
slipring
module
holder
modules
ring
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
EP19152302.6A
Other languages
English (en)
French (fr)
Other versions
EP3683902A1 (de
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
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 Schleifring GmbH filed Critical Schleifring GmbH
Priority to EP19152302.6A priority Critical patent/EP3683902B1/de
Priority to EP20700171.0A priority patent/EP3912232B1/de
Priority to CN202080005769.6A priority patent/CN112868142B/zh
Priority to PCT/EP2020/050668 priority patent/WO2020148221A1/en
Publication of EP3683902A1 publication Critical patent/EP3683902A1/de
Application granted granted Critical
Publication of EP3683902B1 publication Critical patent/EP3683902B1/de
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 assembly with slipring modules bearing sliding tracks of a slipring.
  • the problem to be solved by the invention is to provide a slipring module which is easy and inexpensive to manufacture and which can easily be exchanged in a slipring assembly.
  • a slipring module comprises a body and at least one sliding track. There may be at least one of 2, 3, 4, 5, 6, 7, 8, 9, 10 sliding tracks. The maximum number of tracks is determined by the diameter of the module and the technology of contacting the rings. Multiple slipring modules can e.g. be added from a modular construction kit.
  • 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 sliding tracks are on or at least partially embedded into the insulating material.
  • the sliding tracks comprise an electrically conductive material.
  • at least two sliding tracks are insulated from each other.
  • they are solid conductive bodies. They may comprise any conductive metal or an alloy of metals.
  • the slip-ring holders have a plurality of fingers reaching into the groove when mounted to the slipring module.
  • the holders have a circular shape and the fingers are arranged circularly and preferably evenly spaced.
  • the fingers provide together with the groove a snap - fit connection which may also be opened if necessary.
  • the fingers have at least a certain degree of elasticity to be deformed in such a way that they can reach over the rim of the groove.
  • the fingers have an arm and at the end of the arm a protrusion, which fits into the groove.
  • the protrusion and the groove may have rounded edges, such that the finger may be removed after assembly.
  • the fingers and groove that connect holder and slipring module when mounted may also be located at the inside diameter of the module.
  • the slipring module may be preassembled before mounting into a slip-ring housing by attaching at least one holder (if only one holder is used) or two holders to the ends of the slip-ring module. Such a preassembled slip-ring module may then be inserted into the housing from one side and along its center axis. This is the same way, as slip-ring modules known from prior art are mounted. If a slip-ring housing is already installed in an application, it may be difficult to access the housing from one side to insert the module along its center axis. Here, the slipring module may simply be displaced in a radial direction and the holders may be attached or removed, when they module is in place.
  • the module may be moved laterally (in a radial direction) into its final position and then one or two holders are pushed on the ends of the slipring modules.
  • one or two holders are removed sideward thus releasing the module which may be moved out of the housing laterally (in a radial direction).
  • 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.
  • 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.
  • This shaft lock ring may be used to fix the holder and therefore the module assembly within a slipring housing.
  • a shaft lock ring also a snap ring could be used.
  • a double slipring module assembly is provided.
  • two modules are connected together by a double holder.
  • the double holder has fingers on two axially opposing sides and around a common rotation axis. Double holders allow connecting two or more modules together.
  • a double holder may comprise any of the features described herein.
  • 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.
  • 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.
  • holders 160 and the 170 are provided, which are held rotatably by ball bearings 211 and 221.
  • the holders may have bearing seats 162 and 172.
  • at least one sealing ring 184 is placed between the holder and the slip-ring module.
  • the sealing ring preferably comprises an elastic material like a polymer or rubber.
  • the sealing ring furthermore provides a pre-load to the fingers and results in a more stable connection and may provide dampening of vibrations. It is preferred, if there is a sealing ring groove 183 within one of the holders 160, 170 and/or within at least one of the ends of the slip-ring module 105.
  • This figure further shows connecting pins 122 of the sliding tracks 120.
  • the axial stops 316 are shorter in axial direction compared to the locking pin 313 and define the axial position of the holder to a module.
  • Figure 8 shows a double slipring module assembly according to this invention.
  • 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.

Landscapes

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

Claims (8)

  1. Schleifringmodulanordnung umfassend zwei Schleifringmodule (105, 315) und einen Doppelhalter (320),
    wobei die Schleifringmodule (105, 315) eine zylindrische Form um eine Mittelachse (101) haben, und Folgendes umfassen:
    - einen Schleifringmodulkörper (110), wobei der Körper mindestens ein elektrisch isolierendes Material umfasst,
    - mindestens eine Schleifbahn (120), wobei mindestens eine Schleifbahn (120) ein elektrisch leitfähiges Material umfasst,
    dadurch gekennzeichnet, dass
    die Schleifringmodule an einem Ende oder an beiden Enden eine radiale Nut (182) aufweisen, der Doppelhalter (320) angepasst ist, um an das mindestens eine Ende von jedem der Schleifringmodule (105, 315) zu passen, und der Doppelhalter (320) mehrere Finger (181) an zwei axial gegenüberliegenden Seiten und herum um die gemeinsame Mitte (101) umfasst, welche in die radialen Nuten (182) hineinreichen, wenn sie an den Schleifringmodulen (105, 315) angebracht sind, wobei die Finger den Doppelhalter (320) an die Schleifringmodule (105, 315) verriegeln.
  2. Schleifringmodulanordnung (100) nach Anspruch 1,
    dadurch gekennzeichnet, dass
    mindestens eines der Schleifringmodule (105) mehrere voneinander isolierte Schleifbahnen (120) umfasst.
  3. Schleifringmodulanordnung (100) nach einem der vorangehenden Ansprüche,
    dadurch gekennzeichnet, dass
    mindestens eine Endfläche (130) des Modulkörpers (110) eine Rastnase aufweist, um gegenläufige Federn (324) des Doppelhalters (320) aufzunehmen.
  4. Schleifringmodulanordnung (100) nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass
    die mindestens eine Endfläche (130) des Modulkörpers (110) eine Nut (183) für einen Dichtungsring (184) aufweist, und/oder
    der Doppelhalter (320) eine zu mindestens einer Endfläche (130) des Modulkörpers (110) passende Fläche mit einer Nut (183) für einen Dichtring (184) aufweist.
  5. Schleifringmodulanordnung (100) nach einem der vorangehenden Ansprüche,
    dadurch gekennzeichnet, dass
    mindestens ein Dichtungsring (184) zwischen mindestens einer Endfläche (130) des Modulkörpers (110) und dem Doppelhalter (320) angeordnet ist.
  6. Schleifringmodulanordnung (100) nach einem der vorangehenden Ansprüche,
    dadurch gekennzeichnet, dass
    der Doppelhalter (320) eine Nut (186) für einen Wellenverriegelungsring (185) aufweist.
  7. Schleifringmodulanordnung (100) nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass
    der Doppelhalter (320) einen Lagersitz für ein Kugellager (211, 221) oder ein Gleitlager aufweist.
  8. Schleifringmodulanordnung (100) nach einem der vorangehenden Ansprüche,
    dadurch gekennzeichnet, dass
    der Doppelhalter (320) eine Axialfeder (311, 321) zum Aufbringen einer Axialkraft zwischen dem Doppelhalter (320) und den Schleifringmodulen aufweist.
EP19152302.6A 2019-01-17 2019-01-17 Einrastbares schleifringmodul Active EP3683902B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP19152302.6A EP3683902B1 (de) 2019-01-17 2019-01-17 Einrastbares schleifringmodul
EP20700171.0A EP3912232B1 (de) 2019-01-17 2020-01-13 Einrastbarer schleifringmodul
CN202080005769.6A CN112868142B (zh) 2019-01-17 2020-01-13 咬接式滑环模块
PCT/EP2020/050668 WO2020148221A1 (en) 2019-01-17 2020-01-13 Snap-in slipring module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19152302.6A EP3683902B1 (de) 2019-01-17 2019-01-17 Einrastbares schleifringmodul

Publications (2)

Publication Number Publication Date
EP3683902A1 EP3683902A1 (de) 2020-07-22
EP3683902B1 true EP3683902B1 (de) 2022-07-27

Family

ID=65036676

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19152302.6A Active EP3683902B1 (de) 2019-01-17 2019-01-17 Einrastbares schleifringmodul
EP20700171.0A Active EP3912232B1 (de) 2019-01-17 2020-01-13 Einrastbarer schleifringmodul

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP20700171.0A Active EP3912232B1 (de) 2019-01-17 2020-01-13 Einrastbarer schleifringmodul

Country Status (3)

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

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
EP3912232B1 (de) 2024-07-03
WO2020148221A1 (en) 2020-07-23
EP3683902A1 (de) 2020-07-22
EP3912232A1 (de) 2021-11-24
CN112868142B (zh) 2023-11-07
CN112868142A (zh) 2021-05-28

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