EP3785330A1 - Cosse de câble, broche de raccordement et système électrique à courant triphasé ainsi que système d'entraînement - Google Patents

Cosse de câble, broche de raccordement et système électrique à courant triphasé ainsi que système d'entraînement

Info

Publication number
EP3785330A1
EP3785330A1 EP19733658.9A EP19733658A EP3785330A1 EP 3785330 A1 EP3785330 A1 EP 3785330A1 EP 19733658 A EP19733658 A EP 19733658A EP 3785330 A1 EP3785330 A1 EP 3785330A1
Authority
EP
European Patent Office
Prior art keywords
pin
connection
coding
phase
cable lug
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.)
Withdrawn
Application number
EP19733658.9A
Other languages
German (de)
English (en)
Inventor
Damir ALIHODZIC
Frank Skrzypinski
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.)
Rolls Royce Solutions GmbH
Original Assignee
MTU Friedrichshafen 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 MTU Friedrichshafen GmbH filed Critical MTU Friedrichshafen GmbH
Publication of EP3785330A1 publication Critical patent/EP3785330A1/fr
Withdrawn legal-status Critical Current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
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/12—End pieces terminating in an eye, hook, or fork
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks
    • H01R9/2475—Means facilitating correct wiring, e.g. marking plates, identification tags
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/183—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section

Definitions

  • the present invention relates to a cable lug with a connection ring for connecting the cable lug to a pin and a pin; for connecting a connection ring of a cable lug.
  • the present invention further relates to a three-phase electrical system and a drive system with a three-phase electrical system.
  • Pins are hereby usually threaded pins, which continue to be regularly in the context of electrical Anschlußfeldem (e.g.
  • Terminal strips which are e.g. have two, three or more pins.
  • Fig. 1 shows a cable lug G according to the prior art.
  • the cable lug G has a connection ring 3 ', which is formed annular disk-shaped, wherein the connection ring 3' has a circular passage opening 5 ', that is for the connection or the mounting to a pin; T according to the state of the art, s. Fig. 2, which is e.g. as a threaded pin
  • confirmation copy (Thread not shown) may be provided (the pin 7 'is formed for example on a connection pad 9' or a terminal block (indicated in Fig. 2)).
  • the connecting pin 7 '- provided with a circular cross section and a corresponding dimension with respect to the passage opening 5' - passes through the passage opening 5 'with a section.
  • a fastening portion 11 ' is further formed, which of the
  • the cable lug G for example, for a squeeze or
  • Crimp connection set up, in particular by means of a slotted crimp sleeve of the
  • Connecting ring 3 'and sleeve are made of metal.
  • Pin 7 ' is insufficiently preventable, woneben also an unwanted rotation when connected to a pin 7' according to the prior art is possible.
  • the present invention seeks to minimize the risk of producing a faulty electrical connection when connecting a cable lug to a pin.
  • the cable lug according to the invention has a connection ring for connecting the cable lug to a connection pin.
  • a coding is formed, which corresponds to a coding formed on an outer side of the connecting pin.
  • the connecting ring of the cable lug is used in particular for mounting on the connecting pin, in particular in the form of a threaded pin (eg bolt-shaped).
  • the connection ring represents insofar an annular connection element.
  • the cable lug can also be referred to as a ring cable lug.
  • the terminal pin at least over a portion of the connection ring penetrate (in particular a through hole of the connection ring), after which a permanently positionally stable fixation, for example by (clamping) screwing with a screw, such as a nut, be provided can.
  • the cable lug can furthermore, for example as a projection or continuation, be integrally formed on the connection ring or formed integrally therewith, in a conventional manner have a fastening end for (electrically conductive) connection to a cable or a conductor strand.
  • the attachment end for example, for a customary with cable lugs connection, such as a crimp (crimp), a connector, a solder joint, a
  • connection ring in particular together with the fastening end (electrically conductive), may preferably be made of metal, for example of a sheet metal, furthermore punched, for example.
  • an insulating material may be provided for sheathing at the attachment end, e.g. a shrink tube or the like.
  • the connecting pin according to the invention for connecting a connecting ring of a cable lug has, on an outer side of the connecting pin, a coding which corresponds to a coding formed on an inner side of the connecting ring.
  • the connecting pin can be used together with the connecting ring of the cable lug mounted on it for the joint formation of an electrical connection.
  • the pin is a threaded pin, which is in particular bolt-shaped, in particular conductive, preferably made of metal.
  • connection solution for forming an electrical connection is provided, which by means of correspondence-coded connecting elements in the form of
  • For internal coding is preferably a structure or coding structure on
  • Connecting ring which mechanically interacts with or interacts with a structure or coding structure on the outside correspondence coded pin
  • connection ring inside
  • connecting pin outside
  • the passage opening of the connection ring including the inside coding has a cross section which corresponds to a cross section which is formed including the coding on the connection pin. This applies in particular to that section of the connecting pin which is provided for passage through the passage opening of the connecting ring.
  • Connecting ring and pin can preferably act locking or torsionally, for example, form Vernier- or locking elements, e.g. as it were a tongue and groove lock. Furthermore, a relative position between connecting ring and pin and
  • Pin can be advantageously specified via the arrangement of such coding structures. In this relative position then a connection of pin and correspondence coded connection ring (union of the connection ring on the pin) is only possible.
  • the coding of the cable lug on the inside of the connecting ring is externally designed so that they directly connect to the
  • Cable lug characterized. The same applies to an embodiment of the terminal pin, wherein the coding on its outer side is designed externally so that it directly characterizes a connection with the pin.
  • connection or the connection is advantageously symbolized or marked outwards to a viewer or user in a specific, predefined manner. The viewer or user can therefore immediately, immediately recognize what the cable lug and / or the connecting ring is or will be used.
  • These relationships may also be referred to such that the respective corresponding coding on the terminal pin and the terminal ring is designed to be "speaking" with respect to an intended use of the connection or terminal.
  • the matching, associated pin can be assigned directly. Mixing of cable lugs and / or pins can thus advantageously be virtually eliminated.
  • the complete connection is formed in particular with the connection pin and the cable lug connected to it.
  • the coding on the inside of the connection ring is designed such that it characterizes the type, the type, the function, the meaning and / or the purpose of the connection with the cable lug.
  • the connecting pin according to which the coding on the outside of the connecting pin is designed such that it characterizes the type, the type, the function, the meaning and / or the purpose of the connection with the connecting pin.
  • the coding on the inside of the connecting ring is designed such that it refers to a three-phase phase of a three-phase electrical system, which is assigned to the connection with the cable lug.
  • Terminal pin is designed so that it is dependent on a three-phase phase of an electric
  • Three-phase system which is assigned to the connection with the pin.
  • the reference to the three-phase phase takes place in particular immediately.
  • a viewer, user or user it is possible to recognize directly due to the design of the coding that a three-phase phase is assigned to the cable lug or pin and in particular which exactly.
  • the coding on the inside of the connecting ring is U-shaped, V-shaped or W-shaped.
  • Embodiment of the coding it is particularly easy to reliably recognize the assignment of the cable lug or the connecting ring to the three-phase phase.
  • the present invention further relates to a three-phase electrical three-phase system for three three-phase phases (U, V, W), wherein the terminals each having a cable lug according to the invention and / or each formed with a erfmdungswashen pin.
  • a three-phase electrical three-phase system for three three-phase phases (U, V, W), wherein the terminals each having a cable lug according to the invention and / or each formed with a erfmdungswashen pin.
  • the respective coding of the cable lugs and / or pins is configured in particular such that it directly refers to the three-phase phase of the electric three-phase system assigned to the respective connection.
  • a first of the codings of the cable lugs and / or pins of the connections for the three-phase current U-shaped, a second of the codes V-shaped and a third of the codes W-shaped be configured.
  • a connection field may have a plurality of connection pins according to the invention, the codes of the plurality of connection pins being different.
  • the connection field can be an electrical connection field.
  • Such a connection field can be provided, for example, for connecting an inverter to an electrical machine.
  • the connection field is designed, for example, as a connection strip.
  • it can be used particularly advantageously for an electric three-phase system, in particular for the connection of the three-phase phases U, V, W.
  • the individual pins of the connection field can each be assigned to a three-phase phase.
  • the outside codes of the pins are in particular U-, V- or W-shaped configured.
  • the respective cross-sectional area of the codings U-, V- or W-shaped configured.
  • such an arrangement may be provided in which the coded cable lug (via the connection ring) is connected to the correspondence-coded connection pin, for example to a connection pin of a connection field.
  • the connecting pin and the cable lug can be engaged with each other via corresponding codings, in particular in interlocking engagement.
  • a rotation of the cable lug on the pin causes.
  • the corresponding codes thus act as a (mechanical) locking structure.
  • the corresponding codes may be preferred symbolize or mark a connection type of the connection formed by the connection pin and cable lug. They represent a kind of "speaking coding".
  • an electrical machine or an inverter can be connected.
  • the electric machine and / or the inverter can be such an arrangement or such
  • correspondence-coded pin prevents (especially according to poka-yoke principle).
  • the present invention further relates to a drive system with a
  • the drive system may be provided in particular for a vehicle, for example a passenger vehicle, a commercial vehicle, a ship or a rail-bound vehicle.
  • the drive system can also be used for a stationary drive, the z. B. is used in a power generation system.
  • the drive system may preferably have a three-phase electric machine (with the phases U, V, W, for example a synchronous or asynchronous machine) and / or a converter (with the phases U, V, W), preferably one connection per one phase of the
  • Three-phase machine or the inverter is assigned.
  • This connection is formed by means of a coded connection pin and a correspondence coded cable lug (in particular in the form of a suitably designed arrangement on a three-phase machine or converter).
  • a coded connection pin and a correspondence coded cable lug in particular in the form of a suitably designed arrangement on a three-phase machine or converter.
  • a three-phase machine and a converter via correspondence coded cable lugs and pins and cables are connected to each other electrically.
  • Example creepage distances reliably adhered to and reversing the direction of rotation of an incorrectly connected to a three-phase electrical machine excluded.
  • Cable lugs according to the invention with different codes (each in plan view).
  • Fig. 4 a), b), c) are exemplary and schematic views of embodiments of
  • Terminal pins according to the invention with different codes (each in plan view of an end).
  • FIG. 5 shows an exemplary and schematic illustration of the cable lug according to FIG.
  • FIG. 6 shows an exemplary and schematic illustration of an embodiment of a drive system according to the invention with an exemplary embodiment of an electric three-phase system according to the invention.
  • FIG. 3a), b), c) each show a cable lug 1, which has a connecting ring 3 for connecting the cable lug 1 to a connecting pin 7, in particular a threaded pin, having.
  • the connecting ring 3 is formed annular disk-shaped, in particular as a perforated disc, and has a passage opening 5.
  • a fastening portion 11 protrudes from the connection ring 3 from.
  • the attachment portion 11 forms a mounting end 13 of the cable lug 1.
  • Fastening end 13 is configured, for example, for a crimped connection (with a conductor strand end).
  • the terminal lug 1 is electrically conductive, and the terminal ring 3 and the attachment portion 11 formed integrally therewith and the attachment end 13 are particularly made of metal (for example, stamped from a metal sheet).
  • the cable lug 1 can be referred to as a ring cable lug due to its ring-shaped connection option, the connection ring 3.
  • the terminal ring 3 of the cable lug 1 is coded on the inside for connection to a pin out on the outside korendetcod striv 7 (see Figures 4a), b), c)).
  • an encoding 15 in this case a coding structure, projects from the inner edge of the connection ring 3 into the passage opening 5 at the edge.
  • the coding 15 is formed by means of an extension or a lug 17 on the connection ring 3. With the coding 15 projecting into the passage opening, a coded cross section (or a coded cross sectional area) of the passage opening 5 is likewise formed.
  • the codings 15 of the cable lugs 1 according to Figures 3a), 3b) and 3c) are as
  • phase-design-shaped lugs or extensions 17 formed which directly refer to the three-phase phases U, V and W of a three-phase electrical system.
  • the codings 15 according to FIGS. 3a), 3b) and 3c) directly denote or symbolize one of the three three-phase phases U, V, W. In the present case this is also referred to as "speaking" coding.
  • the embodiments of the codes 15 themselves characterize the type, type, function, meaning and / or purpose of the terminal, which is or is to be formed with the cable lug 1.
  • the embodiments of the codes 15 themselves refer to which three-phase phases U, V, W and thus at which terminal, which is occupied by the respective three-phase U, V, W, the respective cable lug 1 is to be connected.
  • the coding 15 is U-shaped or formed as a U-shaped extension 17.
  • the coding 15 V-shaped or V-shaped extension 17 is formed.
  • the coding 15 W-shaped or as a W-shaped extension 17 is formed.
  • FIGS. 4a), b) and c) each show a connection pin 7 for mounting a connection ring 3 of a cable lug 1.
  • the connection pins 7 are coded on the outside for the respective connection to a connection ring 3 coded on the inside, ie in particular a correspondence-coded connection ring 3 according to one of the figures 3a), b), c).
  • the outside coding of a respective pin 7 is formed by means of a coding 19, here a coding structure, which extends over a portion of the pin 7, which is provided for connection of the correspondence coded terminal ring 3 thereto (the pin 7 when connecting the cable shoe 1 the
  • Connecting ring 3 passes through the section). Due to the codings of the pins 7, a coded cross-section (or a coded cross-sectional area) is formed by means of the respective coding 19 (analogous to the connecting rings 3 according to FIG. 3 a), b), c)) on a respective connecting pin 7. These coded cross sections correspond to those coded cross sections which have the passage openings 5 of the correspondence-coded connection rings 3 provided for connection to the connection pins 7.
  • a respective outside coding 19, in particular outside (axially) formed or extending on the connecting pin, is formed, for example, as a groove-shaped depression or recess 21.
  • the configuration of the coding 19 itself refers directly to the intended type, the type, the function, the meaning and / or the purpose of the terminal, which is or is to be formed with the respective pin 7.
  • the embodiments of the codes 19 themselves refer directly to which three-phase phase U, V, W, the respective pin 7 is assigned or which three-phase phase U, V, W is assigned to the terminal, which is formed or formed with the respective pin 7.
  • the respective codes 19 are formed as phase-like recesses 21.
  • the depressions 21 refer directly to the Three-phase phases U, V and W of a three-phase electrical system.
  • the codings 19 according to FIGS. 4 a), b) and c) directly designate or symbolize one of the three three-phase phases U, V, W.
  • the coding is 19 U förmigoder formed as a U-shaped recess 21.
  • the coding 19 W-shaped or as a W-shaped recess 21 is formed.
  • Pin 7 according to Fig. 4b corresponds to the inside coding 15, thus the coded cross-section of the fürgangsöffhung 5 of the connection ring 3 of FIG. 3b).
  • connection field 9 for the connection of three three-phase phases U, V, W can be formed in a simple manner.
  • the connection pins 7 of the connection field 9 are coded differently for the connection of a respective correspondence-coded connection ring 3 or a respective assigned phase U, V or W. A risk of confusion of the phase when connecting one of the pins 7 is thus considerably minimized by the respective coding 19. It should also be noted that the coding ensures that a terminal ring 3 of the U-, V- or W-coded terminal rings 3 is not encoded to a non-correspondence-coded one
  • FIG. 5 shows, by way of example, an arrangement 23 which has a cable lug 1 which is connected to a correspondence-coded connecting pin 7, for example a connecting field 9.
  • the cable lug 1 is a cable lug 1 according to Fig. 3a) with a U-shaped
  • Lug 1 and pin 7 of FIG. 5 form an electrical connection, for example an inverter or an electric machine, for connecting the Three-phase phase U.
  • corresponding codes engage each other, in particular in (mechanical) locking engagement.
  • the corresponding codes by means of which by means of engagement with each other and a rotation of the cable lug 1 on the pin 7, thus ensuring a predetermined relative orientation is so far formed by means of the inside coding 15 of the terminal ring 3 of the cable lug 1 and the outside code 19 of the pin 7.
  • FIG. 6 shows a schematic representation of a three-phase electrical system 25.
  • the three-phase electrical system 25 contains the arrangement 23 according to FIG. 5 with the U-shaped coding 15, 19. Furthermore, the three-phase electrical system 25 has a second arrangement 23 with V-shaped coding 15 , 19 and a third arrangement 23 with W-shaped coding 15, 19.
  • the second of the arrangements 23 has a cable lug 1 according to FIG. 3b) with a V-shaped coding 15 and a correspondence-coded connecting pin 7 according to FIG. 4b)
  • the third of the arrangements 23 has a cable lug 1 according to FIG. 3c) with W-shaped coding 15 and a correspondence-coded connecting pin 7 according to FIG. 4c) with corresponding W-shaped coding 19.
  • the three-phase electrical system 25 thus has the connection field 9 (FIG. 4) for the connection of the three three-phase phases U, V, W, wherein in each case a cable lug 1 provided with a corresponding coding 15 is connected to the three connection pins of the connection field 9.
  • the three-phase electrical system 25 is part of a drive system 27.
  • the drive system 27 further comprises a rotary electric machine 29, which via the electrical
  • Three-phase system 25 is connected to a converter 31.
  • the three three-phase connections, via which the three-phase machine 29 is connected to the converter 31, are designed according to the arrangement 23 of the three-phase electrical system 25.
  • the drive system 27 may be for driving a vehicle.
  • the electric rotary machine 29 can be operated by a motor in this case.
  • the drive system 27 may be part of a hybrid drive of such a vehicle, for example.
  • the drive system 27 may alternatively be part of a stationary one
  • the electric rotary machine 29 can be operated as a generator in this case.
  • the power generation system can be part of a power supply network into which it can feed energy.
  • the energy supply network can be in particular a so-called microgrid or smartgrid.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

La présente invention concerne une cosse de câble (1) dotée d'une bague de raccordement (3) pour le raccordement de la cosse de câble (1) à une broche de raccordement (7). Sur une face interne (14) de la bague de raccordement (3) est formé un codage (15) qui correspond à un codage (19) formé sur une face externe (18) de la broche de raccordement (7). La présente invention concerne en outre une broche de raccordement (7) pour le raccordement d'une bague de raccordement (3) d'une cosse de câble (1). Sur une face externe (18) de la broche de raccordement (7) est formé un codage (19) qui correspond à un codage (15) formé sur une face interne (14) de la bague de raccordement (3). La présente invention a trait en outre à un système électrique à courant triphasé (25) ayant trois raccordements pour trois phases de courant triphasé (U, V, W) et à un système d'entraînement (27) muni d'un système électrique à courant triphasé (25) de ce genre.
EP19733658.9A 2018-04-26 2019-04-18 Cosse de câble, broche de raccordement et système électrique à courant triphasé ainsi que système d'entraînement Withdrawn EP3785330A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018003391.1A DE102018003391B4 (de) 2018-04-26 2018-04-26 Anschlussfeld, Anordnung mit demselben und elektrischer Antriebsstrang
PCT/DE2019/000110 WO2019206354A1 (fr) 2018-04-26 2019-04-18 Cosse de câble, broche de raccordement et système électrique à courant triphasé ainsi que système d'entraînement

Publications (1)

Publication Number Publication Date
EP3785330A1 true EP3785330A1 (fr) 2021-03-03

Family

ID=67070509

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19733658.9A Withdrawn EP3785330A1 (fr) 2018-04-26 2019-04-18 Cosse de câble, broche de raccordement et système électrique à courant triphasé ainsi que système d'entraînement

Country Status (4)

Country Link
EP (1) EP3785330A1 (fr)
CN (1) CN112189282A (fr)
DE (1) DE102018003391B4 (fr)
WO (1) WO2019206354A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11502431B1 (en) * 2021-04-28 2022-11-15 Te Connectivity Germany Gmbh Terminal having a bolt section
FR3122784B1 (fr) * 2021-05-06 2023-06-30 Alstom Transp Tech Système de connexion électrique comprenant une pluralité d’ensembles de connexion, ensemble électrique comprenant un tel système et véhicule associé

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0713412Y2 (ja) * 1984-02-24 1995-03-29 三菱電機株式会社 接続装置
DE102011111931A1 (de) 2011-08-30 2013-02-28 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Terminalbefestigung
JP6075174B2 (ja) * 2013-04-15 2017-02-08 日立金属株式会社 モータ用接続部材及びモータ装置
JP6604712B2 (ja) * 2014-08-21 2019-11-13 Ｎｔｎ株式会社 車両用モータ駆動装置の端子取付構造
JP2017041398A (ja) 2015-08-21 2017-02-23 住友電装株式会社 ボルト締め端子の積層固定構造

Also Published As

Publication number Publication date
CN112189282A (zh) 2021-01-05
WO2019206354A1 (fr) 2019-10-31
DE102018003391A1 (de) 2019-10-31
DE102018003391B4 (de) 2020-06-25

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