EP3631911A1 - Dispositif de dérivation servant à la dérivation de courants électriques - Google Patents

Dispositif de dérivation servant à la dérivation de courants électriques

Info

Publication number
EP3631911A1
EP3631911A1 EP18728323.9A EP18728323A EP3631911A1 EP 3631911 A1 EP3631911 A1 EP 3631911A1 EP 18728323 A EP18728323 A EP 18728323A EP 3631911 A1 EP3631911 A1 EP 3631911A1
Authority
EP
European Patent Office
Prior art keywords
contact element
contact
contact surface
spring
guide
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
EP18728323.9A
Other languages
German (de)
English (en)
Inventor
Florian Huber
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.)
Schunk Carbon Technology GmbH
Original Assignee
Schunk Carbon Technology 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 Schunk Carbon Technology GmbH filed Critical Schunk Carbon Technology GmbH
Publication of EP3631911A1 publication Critical patent/EP3631911A1/fr
Pending legal-status Critical Current

Links

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
    • H01R39/64—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
    • H01R39/18—Contacts for co-operation with commutator or slip-ring, e.g. contact brush
    • H01R39/26—Solid sliding contacts, e.g. carbon brush
    • 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
    • H01R39/18—Contacts for co-operation with commutator or slip-ring, e.g. contact brush
    • H01R39/20—Contacts for co-operation with commutator or slip-ring, e.g. contact brush characterised by the material thereof

Definitions

  • the invention relates to a discharge device for discharging electric currents from a rotor part of a machine designed in particular with a shaft into a stator part of the machine and to a machine having a discharge device, comprising a contact element, a holding device and a spring device, wherein the holding device can be electrically conductively connected to a stator part is, wherein the contact element is formed predominantly of carbon, wherein the contact element is axially slidably received on the holding means and electrically conductively connected thereto, wherein by means of the spring means the contact element for forming an electrically conductive sliding contact between a provided for forming the sliding contact sliding contact surface of the contact element and an axial shaft contact surface of the shaft can be acted upon by a contact force.
  • Discharge devices of the type mentioned above are known in various embodiments from the prior art.
  • coal use brushes, which are arranged on a slip ring in radial distribution around a shaft and contacted via connecting leads with a stator.
  • the case recorded in a holding device or a brush holder carbon brushes allow due to their low electrical resistance direct dissipation of electrical currents and thus can avoid unwanted current flow through bearings of the shaft, which could lead to surface damage of the bearing body or bearing rings due to selective welding.
  • shaft is used here as a synonym for the term “rotor part” or “axle.” Therefore, the term “shaft” to understand all rotating machine parts, via the derivation of currents in a fixed stator or machine part a machine can be done.
  • Discharge devices are also regularly used in railway technology, where alternating currents or even a working current can flow off via wheel axles.
  • a discharge device in which at one axial end of a shaft or wheel axle of a wheel set, an electrically conductive end cap is mounted, which arranged with a plurality of axially held relative to the shaft held by the brush holders carbon brushes is contactable.
  • the carbon brushes are connected directly to a grounding cable via a stranded wire, and a contact force is produced on sliding contact surfaces of the carbon brushes via a spring.
  • the present invention is therefore based on the object to propose a discharge device, which has a low contact resistance and is easy to install with a small space. This object is achieved by a discharge device having the features of claim 1 and a machine having the features of claim 23.
  • the discharge device is accordingly designed for mounting on a rotating shaft or axis of a machine. It is provided to arrange the discharge device at one axial end of the shaft and form the electrically conductive sliding contact by the contacting of the axial shaft contact surface of the shaft at the axial end of the shaft or an end face of the shaft with the contact element.
  • the contact element can then be acted upon by the contact force acting axially in the direction of an axis of rotation of the shaft, so that the contact element with its sliding contact surface is pressed against the shaft contact surface. Since the contact element is disc-shaped or designed in the manner of a disc or plate, space can be saved compared to a conventional contact block, since the contact element is then comparatively short or thin in terms of its axial extent.
  • the contact element Due to the disc shape or plate shape of the contact element, it is further possible to form the contact element with an at least annular sliding contact surface, which can then be arranged coaxially relative to the wave contact surface.
  • the circular shape sliding contact surface results from a rotational movement of the shaft or shaft contact surface.
  • the disk shape or plate shape of the contact element can also be selected so that a contour of the contact element projects beyond the sliding contact surface. Accordingly, the contact element can also be polygonal and yet have a circular sliding contact surface.
  • the contact element can also be disc-shaped or thin, without it wears much earlier than a known from the prior art contact element with a small sliding contact surface and long length. Also, it is then no longer necessary to mount a plurality of contact elements to achieve a low contact resistance to the shaft, since even a single disk-shaped contact element can form a sufficiently large sliding contact.
  • the discharge device thus requires a small space and can also be easily mounted.
  • the holding device has a base plate, wherein the spring element is arranged between the base plate and a contact surface side facing away from the sliding contact surface pressure side of the contact element.
  • the spring element is then easily arranged between the base plate and the contact element.
  • this can then consist of only three components that can be inserted into each other.
  • An assembly of the discharge device is characterized particularly easy to carry out. If the spring device or the spring element is a particularly flat spring, such as a plate spring, an installation space of the discharge device can be further reduced.
  • An attachment of the base plate to a stator of a machine can be done easily by means of a screw, plug or adhesive connection.
  • An electrically conductive connection of the base plate can be formed via this connection with the stator part or else via a direct connection of a grounding cable to the base plate.
  • An outer diameter or a maximum outer dimension of the disk-shaped contact element can amount to a multiple of a thickness of the contact element.
  • the contact element can be combined with a be formed from outside to thickness of 2: 1, 3: 1, 4: 1, 5: 1 or 10: 1.
  • the sliding contact surface or an end face of the contact element may be sized so large relative to the axial end of the shaft that the contact element projects in its radial dimensions a diameter of the shaft at the axial end.
  • the sliding contact surface may be formed in the manner of a full circle.
  • the contact element can also be designed such that in its radial extension it approximates or corresponds to a diameter of the axial end of the shaft, since a particularly large sliding contact can then be formed.
  • the contact element may be formed in one piece and consist predominantly of carbon.
  • the contact element may be a carbon molded body which is formed by pressing and firing or sintering.
  • the contact element can be made of graphite,
  • the holding device may be made of metal, preferably of steel, aluminum, copper or an alloy of these substances. The holding device can then be produced inexpensively in large quantities by, for example, injection molding or simple mechanical processing of semi-finished products from these materials.
  • the holding device can directly with a stator or a housing part of a
  • the holding device can be formed in one piece or also in several parts.
  • the holding device and the contact element can together form an anti-rotation device for the contact element.
  • the holding device can be fixedly attached to the stator and the contact element can then also be fixed, relative to a rotating shaft, arranged on the holding device and contacted with the shaft.
  • the contact element could otherwise follow a rotation of the shaft, which is why there would be no sliding contact with the shaft.
  • the rotation can be easily formed by a positive reception of the contact element on the holding device, which allows an axial movement of the contact element on the holding device and prevents radial movement of the contact element relative to the holding device.
  • the spring device can have a spring element, preferably a spiral spring, compression spring, plate spring, leaf spring, conical spring, annular spring or diaphragm spring, wherein the spring element can be arranged coaxially relative to the sliding contact surface or a rotational axis of the shaft.
  • a spring element preferably a spiral spring, compression spring, plate spring, leaf spring, conical spring, annular spring or diaphragm spring, wherein the spring element can be arranged coaxially relative to the sliding contact surface or a rotational axis of the shaft.
  • the contact element may be formed from at least two layers with mutually different material mixtures.
  • the contact element can accordingly have at least two layers which have different physical properties and thus different functionalities.
  • the layers may be formed successively in the axial direction, wherein the sliding contact surface of a sliding layer with a copper content of ⁇ 60 percent by mass and the pressure side of a bonding layer can be formed with a copper content of> 80 percent by mass, preferably between the sliding Layer and the bonding layer can be formed an expansion layer.
  • the bonding layer can be formed solderable and weldable with a copper content of 90 to 99 percent by mass with additions of tin or zinc to 9 percent by mass, and a graphite content of not more than 3 percent by mass. As a result, the bonding layer becomes particularly wettable with lead-free solders and is also capable of perspiration.
  • the bonding layer has a high flexural strength of more than 100 MPa, whereby the bonding layer is given a high resistance to mechanical tensile, shear and pressure stresses.
  • the sliding layer can also have a copper content of ⁇ 50% by mass or even be completely free of copper. This results in good sliding properties with low wear and thus a long life and chemical stability.
  • the different layers can also differ by their isotropy / anisotropy.
  • the tie layer may be isotropic while the slip layer may be both isotropic and anisotropic.
  • the lubricating effect of the graphite used in the sliding layer can then be optimally used, in particular by a graphite preferred orientation parallel to the sliding plane.
  • a thermal expansion behavior of the sliding layer can be adjusted by the isotropy / anisotropy.
  • the optional stretch layer can serve to level different coefficients of thermal expansion of the sliding layer and the bonding layer.
  • the contact element may be formed with a contoured transition zone between the layers by sintering.
  • the respective layers can be easily formed by appropriately selected powder mixtures.
  • a contouring is formed in the transition zone between the respective layers so that the layers intermesh in the axial direction. The formation of the contouring can take place in that first a first layer with a correspondingly contoured stamp in a mold compacted and then the second layer is filled up as a powder mixture and compacted.
  • the holding device may have at least one guide element arrangement which extends in the axial direction and on which the contact element is axially displaceable.
  • the guide element arrangement can form a profile, which is formed continuously in the axial direction or a rotation axis of the shaft, so that the axial displaceability of the contact element can be ensured.
  • a length of the guide element arrangement in the axial direction can always be dimensioned such that the contact element can be partially or completely consumed by abrasive wear, without the contact element being able to detach from the guide element arrangement during the displacement in the axial direction by means of the spring device.
  • the contact element may have at its periphery a guide contour which is inserted into the guide element arrangement. The guide element arrangement can therefore encompass the contact element partially or completely around its circumference.
  • the circumference or the guide contour of the contact element may be polygonal or partially or completely round. Thus notches or grooves can also be formed on the circumference in the axial direction, in which the guide element arrangement engages.
  • the contact element may also have a guide recess into which the guide element arrangement or a guide pin of the shaft can engage.
  • the guide recess may be formed along a longitudinal axis of the contact element in the manner of a bore, so that the contact element then forms the annular sliding contact surface.
  • the guide recess may have a passage opening in the contact element or else a blind hole-shaped recess in the contact element. be ment.
  • the guide recess may be formed as a central bore on the contact element, so that the contact element can be plugged onto a guide pin or a stepped diameter of the shaft.
  • the shaft can thus serve for the radial fixing of the contact element.
  • the guide recess and the guide element arrangement can have matching cross sections.
  • j e can be formed after selection of the cross-sectional shape by the then matching cross sections a rotation.
  • it may be a circular, square, rectangular or polygonal cross-section.
  • a polygonal guide recess with a matching guide pin can be provided, which together form an anti-twist device.
  • a clearance fit can then also be formed between the guide recess and the guide element arrangement.
  • the guide element arrangement can be arranged coaxially with the sliding contact surface. So it can be ensured that the contact element is always centered relative to a rotational axis of the shaft at the axial end of the shaft can be arranged. It is then also possible for a center of gravity of the sliding contact surface to always coincide with a center of gravity of the shaft contact surface, with both center of gravity points then also being able to lie on the axis of rotation of the shaft. Also, the contact element may be rotationally symmetrical.
  • the guide element arrangement may have at least one guide element, preferably a plurality of guide elements.
  • a guide element may for example be a simple pin-shaped extension of the holding device.
  • the guide element can also be a be in cross-section polygonal extension and in principle have j any arbitrary cross-sectional shape. Furthermore, it may be provided to use a plurality of guide elements with the cross-sectional shapes described above, if appropriate.
  • the guide element can be integrally formed on a base plate of the holding device or inserted into the base plate. In a simple embodiment, the guide element may be a pin which is merely inserted into a bore of the base plate. Likewise, a pin-shaped guide element in the manner of an extension can be formed on the base plate. Also, the base plate may have a central bore into which a screw is inserted or screwed.
  • the holding device can also be formed in one piece.
  • the holding device can be formed simply by means of an injection molding process or by machining a semifinished product.
  • An inner surface of the guide recess may be contacted with an outer surface of the guide member in an electrically conductive manner.
  • the inner surface of the bore may be contacted with an outer surface of a pin or pin as a guide member.
  • the inner surface and the outer surface or the j dcrowded diameter can form a clearance, which always ensures a low contact resistance.
  • An axial displaceability can already be ensured by the carbon of the contact element and a so advantageously formed friction pairing of the inner surface and outer surface.
  • the guide element may be arranged concentrically relative to the wave contact surface on the holding device. Consequently, the guide element can always also be arranged centrically to the wave contact surface. Additionally or alternatively, the guide element can be arranged eccentrically relative to the shaft contact surface on the holding device. Then, however, a plurality of guide elements may be present, which are arranged eccentrically to the shaft contact surface on the holding device, such that the guide elements relative to a
  • Rotation axis of the shaft always evenly, for example, equidistant from each other, are distributed.
  • At least one groove running in the axial direction can be formed in the sliding contact surface.
  • a plurality of grooves may further be formed in the sliding contact surface, which extend radially outward, for example, from a central center.
  • the groove may have a depth corresponding to a maximum depth of wear of the contact element.
  • oil can be collected on the formed sliding contact or even particles of abrasion and be removed radially in the groove.
  • the groove may also run helically or be arranged in the manner of aêt relative to a center of the sliding contact surface.
  • the contact element is connected to the holding device via at least one electrically conductive strand or a flexible metal flat strip.
  • the strand can be arranged in the production of the contact element within this or attached to the contact element, for example by means of soldering or gluing.
  • the contact element then also has a plurality of strands which are attached to a circumference of the contact element and equidistant from each other.
  • the strand can also be easily attached to the fixture by means of clamps, screws or soldering.
  • a stranded wire By using a stranded wire, a contact resistance can be further reduced. It can also be provided to connect the stranded wire directly to a stator part of the machine.
  • the machine according to the invention has a discharge device according to the invention. Advantageous embodiments of a Machine result from the features of the dependent claims on the device claim 1 dependent claims.
  • FIG. 1 is a sectional view of a first embodiment of a
  • Fig. 2 a plan view of a contact element after the first
  • FIG. 3 shows a side view of the contact element from FIG. 2;
  • FIG. 4 shows a plan view of a base plate according to the first embodiment of the discharge device
  • Fig. 5 is a side view of the base plate of Fig. 4;
  • FIG. 6 is a plan view of a second embodiment of a
  • FIG. 7 shows a side view of the contact element from FIG. 6;
  • FIG. 8 is a plan view of a second embodiment of a
  • Fig. 9 is a side view of the base plate of Fig. 8.
  • FIG. 10 is a plan view of a third embodiment of a
  • FIG. 11 shows a side view of the contact element from FIG. 10;
  • Fig. 12 a plan view of a fourth embodiment of a
  • FIG. 13 a side view of the contact element from FIG. 12; FIG.
  • Fig. 14 a plan view of a fifth embodiment of a
  • FIG. 15 is a side view of the contact element of FIG. 14;
  • FIG. 16 is a plan view of a sixth embodiment of a
  • FIG. 17 is a side view of the contact element of FIG. 16; FIG.
  • FIG. 18 is a plan view of a seventh embodiment of a
  • FIG. 19 is a side view of the contact element of FIG. 18; FIG.
  • Fig. 20 is a plan view of an eighth embodiment of a
  • FIG. 21 is a side view of the contact element of FIG. 20; FIG.
  • Fig. 22 is a plan view of a ninth embodiment of a
  • FIG. 23 is a side view of the contact element of FIG. 22; FIG.
  • Fig. 24 is a plan view of a tenth embodiment of a
  • FIG. 25 is a side view of the contact element of FIG. 24;
  • FIG. FIG. 26 shows a second embodiment of a discharge device in a sectional view on a shaft;
  • FIG. 27 shows a third embodiment of a discharge device in a sectional view on a shaft
  • FIG. 28 shows a fourth embodiment of a discharge device in a sectional view on a shaft
  • FIG. 29 shows a fifth embodiment of a discharge device in a sectional view on a shaft
  • Fig. 30 shows a sixth embodiment of a discharge device in a sectional view on a shaft.
  • Fig. 1 shows a discharge device 10 on a shaft 1 1 in a sectional view.
  • the discharge device 10 is formed from a contact element 12, a holding device 13 and a spring device 14.
  • the contact element 12 consists predominantly of carbon, is annular and has a sliding contact surface 15 which rests against a frontal or axial shaft contact surface 16 of the shaft 1 1, whereby an electrically conductive sliding contact 1 7 is formed.
  • the spring device 14 is formed by a plate spring 1 8, which bears against a pressure side 19 of the contact element 12 and the contact element 12 with a contact force in the axial direction relative to a rotational axis 20 of the shaft 1 1 applied.
  • the holding device 13 is formed from a base plate 21 with an integrally formed thereon guide element 22, which is formed here circular.
  • the contact element 12 Due to its annular shape, the contact element 12 has a guide recess 23, with which the guide element 22 is formed in such a way that the contact element 12 on the holding device 13 is axially displaceable relative to the axis of rotation 20.
  • the plate spring 1 8 is plugged onto the guide element 22 and is supported against the base plate 21.
  • the base plate 21 and the guide element 22 are integrally formed from a metal and fixed to a stationary component of an electric machine, which is not shown here. Overall, such a good electrically conductive connection with low contact resistance of the shaft 1 1 on the holding device 1 3 via the contact element 12th be formed. Also, the discharge device 10 can be mounted very quickly and easily on an electric machine.
  • FIGS. 2 and 3 show a contact element 24, which is annular and rotationally symmetrical.
  • the contact element 24 forms a sliding contact surface on an end face 25.
  • FIG. 4 and 5 show a holding device 27, which is integrally formed and a rectangular base plate 28 with an integrally formed therein guide member 29, which is pin-shaped or bolt-shaped has. On an outer surface 30 of the guide element 29, the contact element of FIG. 2 can be plugged.
  • FIG. 6 to 9 shows a contact element 3 1, which is disc-shaped and has a central bore 32 which forms a guide recess 33 has.
  • a holding device 34 has on a base plate 35 as a guide element 36 on a guide pin 37 which is formed in accordance with the bore 32.
  • square guide pins 38 are formed on the base plate 35, which together with the guide pin 37 form a guide element arrangement 39.
  • the guide pins 38 can engage in grooves 40 in a circumference 41 of the contact element 3 1 and thus form an anti-rotation 42 for the contact element 32 on the holding device 34.
  • FIGS. 10 and 11 show a contact element 43 which, unlike the contact element from FIG. 6, has a recess 44.
  • the recess 44 is formed in a sliding contact surface 45 and serves to receive a screw head of a screw not shown here, which can serve for fastening and guiding the contact element 43 to a holding device or base plate.
  • FIGS. 12 and 13 show a contact element 46 with three guide recesses 47, which are not here relative to a rotation axis 48 of one shown shaft eccentrically and equidistantly spaced from each other in the contact element 46 are formed.
  • FIGS. 14 to 15 show a contact element 49 with a slot-shaped guide recess 50.
  • FIGS. 16 and 17 show a contact element 5 1 with a polygonal guide recess.
  • FIGS. 18 and 19 show a contact element 53 with strands 55 emerging from it at a circumference 54 of the contact element 53, here only shown in sections, which can be connected to a holding device, not shown here.
  • a centric guide recess 56 and an equidistant arrangement of the strands 55 ensures centering of the contact element 53 on the holding device.
  • FIGS. 20 and 21 show a contact element 57, which, unlike the contact element from FIG. 2, has grooves 60 running in a sliding contact surface 58 in the radial direction relative to a rotation axis 59 of a shaft (not illustrated here).
  • a radial depth T of the grooves corresponds to a wear length of the contact element 57th
  • FIGS. 22 to 23 show a contact element 6 1 which, unlike the contact element from FIG. 20, has a comparatively small guide recess 62.
  • FIGS. 24 and 25 show a contact element 63 which, in contrast to the contact element from FIG. 22, has grooves 64 which run in the manner of a pass-edge relative to a rotation axis 65 of a shaft, not shown here, and thus do not intersect the rotation axis 65, but nevertheless are arranged in the radial direction.
  • FIG. 26 shows a discharge device 66 on a shaft 67 which has a central recess 69 in an end face 68.
  • the derivation Device 66 is formed from a holding device 70 with a base plate 7 1 and an attached screw 72 as a guide element 73, wherein a contact element 74 of the discharge device 66 has a recess 75 which serves to receive a screw head 76 of the screw 72.
  • the recess 69 is sized so large that the screw head 76 can not come into contact with the end face 68 in a wear of the contact element 74.
  • a plate spring 77 is arranged to form a contact force.
  • FIG. 27 shows a discharge device 78 with a contact element 79, which forms a conical sliding contact surface 80.
  • a shaft 8 1 also forms a conical shaft contact surface 82, which is adapted to the sliding contact surface 80.
  • FIG. 28 shows a discharge device 83 on a shaft 84 which has a pin 85 on an end face 86.
  • the discharge device 83 comprises an annular contact element 87, which is plugged onto the pin 85, a holding device 88 with a base plate 89, a plate spring 90 and strands 91, which emerge from this on a circumference 92 of the contact element 87 and secured to the base plate 89 , Thus, a particularly good electrically conductive connection between the contact element 87 and the base plate 89 can be achieved.
  • FIG. 29 shows a discharge device 93 which, unlike the discharge device from FIG. 1, has a contact element 94 which is formed with a sliding layer 95 and a connection layer 96.
  • the sliding layer 95 has a copper content of ⁇ 60 percent by mass
  • the bonding layer 96 has a copper content of> 80 percent by mass.
  • a transition zone 97 between the sliding layer 95 and the bonding layer 96 is contoured.
  • a production the contact element 94 is made by sintering various powder mixtures.
  • FIG. 30 shows a discharge device 98 which, in contrast to the discharge device from FIG. 29, has a contact element 99 with a sliding layer 100 and a connection layer 101, wherein an expansion layer 102 is formed between them.
  • the expansion layer 102 levels different thermal expansion coefficients of the sliding layer 100 and the bonding layer 01.

Landscapes

  • Motor Or Generator Frames (AREA)
  • Motor Or Generator Current Collectors (AREA)

Abstract

L'invention concerne un dispositif de dérivation (10) servant à la dérivation de courants électriques depuis une partie de rotor, réalisée en particulier avec un arbre, d'une machine dans une partie de stator de la machine. Le dispositif de dérivation comprend un élément de contact (12), un système de maintien (13) et un système de ressort (14). Le système de maintien peut être relié de manière électroconductrice à une partie de stator. L'élément de contact est réalisé majoritairement à partir de carbone. L'élément de contact est logé de manière à pouvoir coulisser axialement sur le système de maintien et est relié de manière électroconductrice à ce dernier. L'élément de contact peut être soumis à l'action d'une force de contact au moyen du système de ressort afin de réaliser un contact glissant (17) électroconducteur entre une surface de contact glissant (15), prévue pour réaliser le contact glissant, de l'élément de contact et une surface de contact d'arbre (16) axiale de l'arbre. L'élément de contact est réalisé de manière à présenter une forme de disque. La surface de contact est réalisée de manière à présenter au moins une forme annulaire circulaire et peut être disposée de manière coaxiale par rapport à la surface de contact d'arbre.
EP18728323.9A 2017-06-01 2018-05-17 Dispositif de dérivation servant à la dérivation de courants électriques Pending EP3631911A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017209340.4A DE102017209340B4 (de) 2017-06-01 2017-06-01 Ableitvorrichtung zur Ableitung elektrischer Ströme
PCT/EP2018/062854 WO2018219658A1 (fr) 2017-06-01 2018-05-17 Dispositif de dérivation servant à la dérivation de courants électriques

Publications (1)

Publication Number Publication Date
EP3631911A1 true EP3631911A1 (fr) 2020-04-08

Family

ID=62486552

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18728323.9A Pending EP3631911A1 (fr) 2017-06-01 2018-05-17 Dispositif de dérivation servant à la dérivation de courants électriques

Country Status (10)

Country Link
US (1) US11139625B2 (fr)
EP (1) EP3631911A1 (fr)
JP (1) JP7044806B2 (fr)
KR (1) KR102509145B1 (fr)
CN (1) CN110679044A (fr)
BR (1) BR112019025514A2 (fr)
CA (1) CA3064319A1 (fr)
DE (1) DE102017209340B4 (fr)
MX (1) MX2019014276A (fr)
WO (1) WO2018219658A1 (fr)

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Publication number Priority date Publication date Assignee Title
EP3794688B1 (fr) * 2019-05-06 2023-04-26 Schunk Transit Systems GmbH Contact de masse et procédé pour la dissipation de courants électriques

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JPS51133913U (fr) * 1975-04-21 1976-10-28
DE19920384C1 (de) * 1999-05-04 2000-08-03 Stemmann Technik Gmbh Erdungskontakt
EP1136340A2 (fr) * 2000-03-20 2001-09-26 Schunk Metall und Kunststoff GmbH Contact de mise à la terre
WO2005064756A1 (fr) * 2003-12-19 2005-07-14 Hoffmann & Co. Elektrokohle Aktiengesellschaft Balai de charbon ainsi que procede et materiau pour la fabrication dudit balai
DE102008059994A1 (de) * 2007-12-12 2009-06-18 Denso Corp., Kariya-shi Bürste für eine elektrische Drehmaschine
DE102015110428A1 (de) * 2015-06-29 2016-12-29 Solayer Gmbh Gleitkontaktelement

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DE1091605B (de) 1955-03-19 1960-10-27 Max Frost Auswechselbarer Erdungskontakt fuer die Achslager von elektrischen Schienen-Triebfahrzeugen
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US11139625B2 (en) 2021-10-05
DE102017209340A1 (de) 2018-12-06
KR102509145B1 (ko) 2023-03-10
CA3064319A1 (fr) 2018-12-06
JP7044806B2 (ja) 2022-03-30
BR112019025514A2 (pt) 2020-06-23
JP2020522223A (ja) 2020-07-27
KR20200019615A (ko) 2020-02-24
US20200203908A1 (en) 2020-06-25
CN110679044A (zh) 2020-01-10
DE102017209340B4 (de) 2022-12-15
MX2019014276A (es) 2020-02-19
WO2018219658A1 (fr) 2018-12-06

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