EP2086066A1 - Variable motor connection - Google Patents

Variable motor connection Download PDF

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Publication number
EP2086066A1
EP2086066A1 EP08001993A EP08001993A EP2086066A1 EP 2086066 A1 EP2086066 A1 EP 2086066A1 EP 08001993 A EP08001993 A EP 08001993A EP 08001993 A EP08001993 A EP 08001993A EP 2086066 A1 EP2086066 A1 EP 2086066A1
Authority
EP
European Patent Office
Prior art keywords
adapter
connection
motor
lines
connecting device
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.)
Granted
Application number
EP08001993A
Other languages
German (de)
French (fr)
Other versions
EP2086066B1 (en
Inventor
Jürgen Zeltwanger
Andreas Schuffenhauer
Hans-Jörg Richter
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.)
Murrelektronik GmbH
Original Assignee
Murrelektronik 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 Murrelektronik GmbH filed Critical Murrelektronik GmbH
Priority to DE200850001199 priority Critical patent/DE502008001199D1/en
Priority to EP20080001993 priority patent/EP2086066B1/en
Publication of EP2086066A1 publication Critical patent/EP2086066A1/en
Application granted granted Critical
Publication of EP2086066B1 publication Critical patent/EP2086066B1/en
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
    • H01R29/00—Coupling parts for selective co-operation with a counterpart in different ways to establish different circuits, e.g. for voltage selection, for series-parallel selection, programmable connectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • H01R13/512—Bases; Cases composed of different pieces assembled by screw or screws
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/74—Devices having four or more poles, e.g. holders for compact fluorescent lamps
    • H01R33/76—Holders with sockets, clips, or analogous contacts adapted for axially-sliding engagement with parallely-arranged pins, blades, or analogous contacts on counterpart, e.g. electronic tube socket
    • H01R33/7607—Holders with sockets, clips, or analogous contacts adapted for axially-sliding engagement with parallely-arranged pins, blades, or analogous contacts on counterpart, e.g. electronic tube socket the parallel terminal pins having a circular disposition
    • H01R33/7614—Holders with sockets, clips, or analogous contacts adapted for axially-sliding engagement with parallely-arranged pins, blades, or analogous contacts on counterpart, e.g. electronic tube socket the parallel terminal pins having a circular disposition the terminals being connected to individual wires
    • H01R33/7621—Holders with sockets, clips, or analogous contacts adapted for axially-sliding engagement with parallely-arranged pins, blades, or analogous contacts on counterpart, e.g. electronic tube socket the parallel terminal pins having a circular disposition the terminals being connected to individual wires the wires being connected using screw, clamp, wrap or spring connection

Definitions

  • the invention relates to a connection device for the electrical connection of a polyphase electric motor with a voltage connection according to the preamble of claim 1.
  • Polyphase electric motors with a capacity of z. 2,000 watts are used in large numbers and - depending on the application on site - electrically wired either star connection or delta connection in the motor terminal box. This wiring is done manually on site and requires a lot of time. Changes to the circuit or the direction of rotation of the motor must always be carried out in the motor connection box by reconnecting the corresponding connections. As with all manual work, errors can occur.
  • the invention has for its object to simplify the electrical installation of multi-phase electric motors.
  • the adapter is arranged between the motor lines of the electric motor and the connection lines of the network, which is an independent, interchangeable component and is wired between its axial, front-side connection sides such that the adapter - depending on the application - each individual connection line of the voltage terminal with a single motor line of the electric motor connects.
  • the adapter is designed such that the motor cables are contacted on the motor side in a fixed, unchangeable assignment electrically to the adapter, as well as on the network connection side of the power connector is contacted in fixed association with the adapter.
  • the connections are wired depending on the application.
  • a first adapter for a delta electric circuit of the motor may be formed and another adapter for a star connection of the motor windings of the motor to be connected.
  • the user selects depending on the required electrical wiring one or the other adapter to connect the motor in star or delta connection. Since there is a fixed assignment to the motor cables or the connection lines on the connection sides, the user - regardless of the electrical wiring of the motor - closes the motor manually in always the same way. This largely avoids circuit errors.
  • the adapter connects depending on its rotational position, the lines in a predetermined assignment with each other. To this rotational position of the adapter too fix, this is accommodated in an adapter housing. This makes it possible that the adapter is used in a first rotational position for a clockwise rotation of the motor and in a second rotational position for a counterclockwise rotation of the motor in the adapter housing. If the user detects after connecting the motor that the motor has the wrong direction of rotation, he only has to reinsert the adapter part in the adapter housing rotated by 180 °. The connections on the motor side as well as on the mains connection side do not need to be changed.
  • the adapter is connected via connectors to the lines, so that another electrical wiring - star connection instead of delta connection - by replacing the adapter is easily possible.
  • the adapter housing is formed integrally with the plug connection of the motor cables, a conventional motor connection box can be dispensed with;
  • the adapter housing forms the motor connection box itself, while the adapter inserted into the adapter housing produces the necessary electrical wiring.
  • the adapter is designed as a stand-alone connector, wherein the adapter advantageously forms a mountable assembly together with the mains connection.
  • Fig. 1 shows a schematic representation of the connection of a motor M via a connection device 1 to a cabinet 2, via which the motor M is connected to the voltage network.
  • the connection device 1 is shown greatly enlarged and is fixed to the motor connection box 3.
  • an M20 connection 4 is provided, which is provided on the housing of the connection device.
  • the motor M is an electric motor with a power of, for example, up to 2,000 watts and is designed as a multi-phase motor with three motor windings.
  • the ends of the motor windings and the protective conductor PE are led by the motor M into the motor terminal box 3 to be wired in accordance with the use of the electric motor.
  • connection lines 6 are further connected via the connection device 1 with the connection lines 6 of a voltage connection from a cabinet 2.
  • the connection lines 6 consist of three phases L1, L2 and L3, a neutral conductor N and a protective conductor PE.
  • an adapter 10 is arranged between the connection lines 6 of the voltage connection and the motor lines 7 of the motor M.
  • the connection lines 6 of the mains connection are connected at one end of the adapter 10 to the adapter 10, while at the other end of the adapter 10, the motor lines 7 of the motor M are connected.
  • the adapter 10 is designed so that - depending on the intended circuit - each individual connection line of the voltage terminal 6 is connected to a single motor line 7a to 7d of the electric motor M.
  • the adapter 10 is an independent, interchangeable component with internal, fixed wiring, so that - depending on the connection requirement - a suitably designed adapter 10 can be used.
  • a first adapter 10a is wired between its ends such that each motor winding is associated with a single phase (delta connection).
  • the PIN 1 neutral
  • the PINs 2, 4 and 5 are each connected to a phase L1, L2 and L3, while the PIN 3 is connected to the protective conductor PE.
  • the adapter is wired between its ends such that the neutral conductor N - PIN 1 - are connected to one end of the winding and the phases L1, L2, L3 are connected via the PINs 2, 4 and 5 to one end of a motor winding.
  • the PIN 3 is again the connection with the protective conductor PE.
  • the adapter is used to wire the motor M in star connection.
  • FIGS. 2 and 3 show, all motor lines 7 of the electric motor M are connected to a plug connection 8, wherein the plug connection is associated with an adapter housing 9 for receiving the adapter 10.
  • the adapter housing 9 is formed integrally with the plug connection 8 or the housing 5 of the plug connection 8.
  • the adapter 10 has over its outer circumference projecting cams 11, which engage in associated recesses 12 of the adapter housing 9.
  • the recesses 12 are formed at the free end of the adapter housing 9 and have a U-shape, which are open to the front side of the adapter housing 9.
  • the adapter 10 is inserted axially into the adapter housing 9, wherein the cams 11 engage in the recesses 12 and set the adapter in a predetermined rotational position in the adapter housing 9.
  • the adapter 10 connects the connection lines 6 of the voltage connection with the motor lines 7 of the electric motor in a predetermined assignment with each other.
  • the insert 10a is used, which in a first rotational position - Fig. 4 - Connects the engine as a right-hander, while in a - rotated by 180 ° - rotational position according to Fig. 5 connects the engine as a left-hander.
  • the adapter 10 thus serves not only the wiring of the windings in star or triangle, but also the direction of rotation or the direction of rotation of the electric motor M.
  • the plug-in connection 8 of the motor is designed as a socket into which a plug of the adapter 10 engages. If the plug connection of the network is plugged onto the plug 13 of the adapter 10 and the cap nut is tightened on the thread 14 of the adapter housing 9, the mains connection of the connection lines 6 is firmly connected to the motor lines 7.
  • connection techniques at least on the side of the adapter 10 facing the net.
  • the adapter 10c has on the mains connection side 15 insertion openings 16 for the ends of the connecting lines L1, L2, L3, PE and N.
  • the connecting lines 6 are to be wired in a predetermined manner to the connection side 15, for which purpose spring terminals are provided inside the adapter on the connection side 15 in an advantageous embodiment, as they are known per se from electrical connection technology. After insertion and electrical contacting of the connection lines 6, the connection is secured by means of a union nut 17 and the adapter housing 9 is firmly closed.
  • connection of the connecting wires on the motor connection side and / or the power connection side 15 can be made according to the application in an adapted connection technology such as by insulation displacement terminals, solder terminals, screw terminals or the like.
  • the connector 20 consists of a terminal housing 21, which at its one power line end facing a crimp terminal 22, the crush nut 23 ensures by screwing into the terminal housing 21 a tensile, dust and moisture-tight connection.
  • the threaded into the crimp terminal 22 connecting cable of the power supply 6 is inserted with its individual wires in the insertion openings 16 of the adapter 10.
  • the individual wires of the mains connection 6 by means of spring terminals, solder terminals, insulation displacement terminals, screw terminals or the like can be electrically contacted and fixed to the adapter 10.
  • the so contacted to the connecting lines 6 of the power supply adapter 10 is inserted into the terminal housing 21 and screwed by turning the terminal housing 21 fixed to the thread 28 and so connected to this.
  • a ring seal 24 on the body of the adapter 10 ensures a tight connection between the terminal housing 21 and the adapter 10.
  • the crimp terminal 22 is closed by turning the Quetschmutter 23, so that on the Power connection side of the power connector housing 21 is a dustproof, moisture-proof connection is made.
  • the thus-built connector 20 (FIG. Fig. 11 ) now has at its motor end a plug connection 8, the - like Fig.
  • connection housing 21 shows - is plugged into the adapter housing 9 of the connection device 1 and enters via plug contacts an electrical connection with the motor cables 7.
  • the connection housing 21 has a union nut 27, which can be screwed onto a thread 25 of the adapter housing 9.
  • the adapter 10 seals with an annular seal 26 relative to the adapter housing 9, so that the contact area in the adapter housing 9 dusty and is sealed moisture-proof.
  • Fig. 14 the connection device 1 is shown in the mounted position.
  • the adapter 10 forms an independent connector ( Fig. 11, 12th ), which is inserted into the adapter housing 9, electrically contacted and mechanically tightly connected.
  • the connection device 1 can be easily solved and the engine to be replaced without the adapter 10 must be changed or individual wires of the connections must be solved.

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  • Motor Or Generator Frames (AREA)

Abstract

The device has a junction box in which motor lines (7) of an electric motor are connected with connecting lines of a power connector. An adapter (10) is arranged between the motor lines and the connecting lines, and is designed as an independent, replaceable connector. The adapter connects a single connecting line of the power connector with a single motor line (7a) of the electric motor. The adapter connects the lines with each other in a predetermined configuration based on its rotational position.

Description

Die Erfindung betrifft eine Anschlussvorrichtung zur elektrischen Verbindung eines mehrphasigen Elektromotors mit einem Spannungsanschluss nach dem Oberbegriff des Anspruchs 1.The invention relates to a connection device for the electrical connection of a polyphase electric motor with a voltage connection according to the preamble of claim 1.

Mehrphasige Elektromotoren mit einer Leistung von z. B. 2.000 Watt werden in großer Stückzahl eingesetzt und sind - je nach Einsatz vor Ort - elektrisch entweder in Sternschaltung oder Dreieckschaltung im Motoranschlusskasten zu verdrahten. Diese Verdrahtung erfolgt vor Ort manuell und erfordert viel Zeitaufwand. Änderungen der Schaltung bzw. der Drehrichtung des Motors müssen immer im Motoranschlusskasten durch Umklemmen der entsprechenden Anschlüsse durchgeführt werden. Wie bei allen manuellen Arbeiten können dabei Fehler auftreten.Polyphase electric motors with a capacity of z. 2,000 watts are used in large numbers and - depending on the application on site - electrically wired either star connection or delta connection in the motor terminal box. This wiring is done manually on site and requires a lot of time. Changes to the circuit or the direction of rotation of the motor must always be carried out in the motor connection box by reconnecting the corresponding connections. As with all manual work, errors can occur.

Der Erfindung liegt die Aufgabe zugrunde, die elektrische Installation von mehrphasigen Elektromotoren zu vereinfachen.The invention has for its object to simplify the electrical installation of multi-phase electric motors.

Die Aufgabe wird erfindungsgemäß nach den kennzeichnenden Merkmalen des Anspruchs 1 gelöst.The object is achieved according to the characterizing features of claim 1.

Nach der Erfindung wird zwischen den Motorleitungen des Elektromotors und den Anschlussleitungen des Netzes der Adapter angeordnet, der ein eigenständiges, auswechselbares Bauteil ist und zwischen seinen axialen, stirnseitigen Anschlussseiten derart verdrahtet ist, dass der Adapter - je nach Einsatzfall - jede einzelne Anschlussleitung des Spannungsanschlusses mit einer einzelnen Motorleitung des Elektromotors verbindet.According to the invention, the adapter is arranged between the motor lines of the electric motor and the connection lines of the network, which is an independent, interchangeable component and is wired between its axial, front-side connection sides such that the adapter - depending on the application - each individual connection line of the voltage terminal with a single motor line of the electric motor connects.

Der Adapter ist derart ausgebildet, dass die Motorleitungen auf der Motorseite in fester, unveränderbarer Zuordnung elektrisch mit dem Adapter kontaktiert werden, wie auch auf der Netzanschlussseite der Netzanschluss in fester Zuordnung mit dem Adapter kontaktiert wird. Innerhalb des Adapters sind die Verbindungen je nach Einsatzfall verdrahtet. So kann ein erster Adapter für eine elektrische Dreieckschaltung des Motors ausgebildet sein und ein anderer Adapter für eine Sternschaltung der Motorwicklungen des anzuschließenden Motors. Der Benutzer wählt je nach geforderter elektrischer Beschaltung den einen oder den anderen Adapter aus, um den Motor in Stern- bzw. in Dreieckschaltung anzuschließen. Da auf den Anschlussseiten eine feste Zuordnung zu den Motorleitungen bzw. den Anschlussleitungen gegeben ist, schließt der Benutzer - unabhängig von der elektrischen Beschaltung des Motors - den Motor selbst in immer gleicher Weise manuell an. Damit werden Schaltungsfehler weitgehend vermieden.The adapter is designed such that the motor cables are contacted on the motor side in a fixed, unchangeable assignment electrically to the adapter, as well as on the network connection side of the power connector is contacted in fixed association with the adapter. Within the adapter, the connections are wired depending on the application. Thus, a first adapter for a delta electric circuit of the motor may be formed and another adapter for a star connection of the motor windings of the motor to be connected. The user selects depending on the required electrical wiring one or the other adapter to connect the motor in star or delta connection. Since there is a fixed assignment to the motor cables or the connection lines on the connection sides, the user - regardless of the electrical wiring of the motor - closes the motor manually in always the same way. This largely avoids circuit errors.

In Weiterbildung der Erfindung verbindet der Adapter abhängig von seiner Drehlage die Leitungen in einer vorgegebenen Zuordnung miteinander. Um diese Drehlage des Adapters zu fixieren, wird dieser in einem Adaptergehäuse aufgenommen. Damit wird es möglich, dass der Adapter in einer ersten Drehlage für einen Rechtslauf des Motors und in einer zweiten Drehlage für einen Linkslauf des Motors in das Adaptergehäuse einsetzbar ist. Stellt der Benutzer nach Anschluss des Motors fest, dass dieser die falsche Drehrichtung hat, so muss er lediglich das Adapterteil im Adaptergehäuse um 180° verdreht wieder einsetzen. Die Anschlüsse auf der Motorseite wie auf der Netzanschlussseite müssen nicht verändert werden.In a further development of the invention, the adapter connects depending on its rotational position, the lines in a predetermined assignment with each other. To this rotational position of the adapter too fix, this is accommodated in an adapter housing. This makes it possible that the adapter is used in a first rotational position for a clockwise rotation of the motor and in a second rotational position for a counterclockwise rotation of the motor in the adapter housing. If the user detects after connecting the motor that the motor has the wrong direction of rotation, he only has to reinsert the adapter part in the adapter housing rotated by 180 °. The connections on the motor side as well as on the mains connection side do not need to be changed.

In Weiterbildung der Erfindung ist der Adapter über Steckverbindungen mit den Leitungen verbunden, so dass eine andere elektrische Beschaltung - Sternschaltung statt Dreieckschaltung - durch Austausch des Adapters leicht möglich ist.In a further development of the invention, the adapter is connected via connectors to the lines, so that another electrical wiring - star connection instead of delta connection - by replacing the adapter is easily possible.

Wird das Adaptergehäuse einteilig mit dem Steckanschluss der Motorleitungen ausgebildet, so kann ein üblicher Motoranschlusskasten entfallen; das Adaptergehäuse bildet den Motoranschlusskasten selbst, während der in das Adaptergehäuse eingesetzte Adapter die notwendige elektrische Verdrahtung herstellt.If the adapter housing is formed integrally with the plug connection of the motor cables, a conventional motor connection box can be dispensed with; The adapter housing forms the motor connection box itself, while the adapter inserted into the adapter housing produces the necessary electrical wiring.

In Weiterbildung der Erfindung ist der Adapter als eigenständiger Steckverbinder ausgeführt, wobei der Adapter vorteilhaft zusammen mit dem Netzanschluss eine montierbare Baueinheit bildet.In a further development of the invention, the adapter is designed as a stand-alone connector, wherein the adapter advantageously forms a mountable assembly together with the mains connection.

Weitere Merkmale der Erfindung ergeben sich aus den weiteren Ansprüchen, der Beschreibung und der Zeichnung, in der nachfolgend im Einzelnen beschriebene Ausführungsbeispiele der Erfindung dargestellt sind. Es zeigen:

Fig. 1
eine schematische Darstellung des Anschlusses eines Elektromotors an einem Schaltkasten,
Fig. 2
eine perspektivische Darstellung einer Anschlussvorrichtung mit entnommenem Adapter,
Fig. 3
eine perspektivische Darstellung des Steckanschlusses der Motorleitungen,
Fig. 4
eine Ansicht auf einen Adapter für eine Motordreieckschaltung in einer ersten Drehrichtung (Linkslauf),
Fig. 5
eine Ansicht auf einen Adapter für eine Motordreieckschaltung in einer zweiten Drehrichtung (Rechtslauf),
Fig. 6
eine Ansicht auf einen Adapter für eine Motorsternschaltung in einer ersten Drehrichtung (Linkslauf),
Fig. 7
eine Ansicht auf einen Adapter für eine Motorsternschaltung in einer zweiten Drehrichtung (Rechtslauf),
Fig. 8
eine perspektivische Ansicht auf eine Anschlussvorrichtung mit einem Adapter, der auf der Netzanschlussseite Federzugklemmen für die Anschlussleitungen zeigt,
Fig. 9
eine perspektivische Darstellung nach Fig. 8 mit im Adaptergehäuse eingesetzten Adapter und angeschlossenen Anschlussleitungen,
Fig. 10
eine perspektivische Darstellung nach Fig. 9 mit gesicherter Anschlussleitung,
Fig. 11
in perspektivischer Darstellung einen Netzanschluss mit Anschlussgehäuse und einem Adapter als gemeinsame Baueinheit,
Fig. 12
in perspektivischer Darstellung die demontiere Baueinheit nach Fig. 11,
Fig. 13
in perspektivischer Darstellung der als Steckanschluss ausgebildete Netzanschluss mit einem als Anschlussbuchse ausgeführten Motoranschluss,
Fig. 14
eine perspektivische Darstellung der montierten Anschlussvorrichtung nach Fig. 13.
Further features of the invention will become apparent from the other claims, the description and the drawing, in the following described in detail embodiments of the invention are shown. Show it:
Fig. 1
a schematic representation of the connection of an electric motor to a control box,
Fig. 2
a perspective view of a connection device with removed adapter,
Fig. 3
a perspective view of the connector of the motor cables,
Fig. 4
a view of an adapter for a motor delta connection in a first direction of rotation (left-hand rotation),
Fig. 5
a view of an adapter for a motor delta connection in a second direction of rotation (clockwise),
Fig. 6
a view of an adapter for a motor star connection in a first direction of rotation (left-hand rotation),
Fig. 7
a view of an adapter for a motor star connection in a second direction of rotation (clockwise),
Fig. 8
a perspective view of a connection device with an adapter, which shows on the line connection side spring terminals for the connection lines,
Fig. 9
a perspective view after Fig. 8 with adapter inserted in the adapter housing and connected connecting cables,
Fig. 10
a perspective view after Fig. 9 with secured connection cable,
Fig. 11
in a perspective view of a network connection with connection housing and an adapter as a common structural unit,
Fig. 12
in perspective the dismantled unit according to Fig. 11 .
Fig. 13
in a perspective view of the plug-in connection designed as a power supply with a connector designed as a motor connection,
Fig. 14
a perspective view of the assembled connection device according to Fig. 13 ,

Fig. 1 zeigt eine schematische Darstellung des Anschlusses eines Motors M über eine Anschlussvorrichtung 1 an einen Schaltschrank 2, über den der Motor M an das Spannungsnetz angeschlossen ist. Die Anschlussvorrichtung 1 ist stark vergrößert dargestellt und ist am Motoranschlusskasten 3 festgelegt. Hierzu ist ein M20-Anschluss 4 vorgesehen, der am Gehäuse der Anschlussvorrichtung vorgesehen ist. Fig. 1 shows a schematic representation of the connection of a motor M via a connection device 1 to a cabinet 2, via which the motor M is connected to the voltage network. The connection device 1 is shown greatly enlarged and is fixed to the motor connection box 3. For this purpose, an M20 connection 4 is provided, which is provided on the housing of the connection device.

Der Motor M ist ein Elektromotor mit einer Leistung von beispielsweise bis 2.000 Watt und ist als mehrphasiger Motor mit drei Motorwicklungen ausgebildet. Die Enden der Motorwicklungen und der Schutzleiter PE werden vom Motor M in den Motoranschlusskasten 3 geführt, um dort entsprechend dem Einsatz des Elektromotors verdrahtet zu werden.The motor M is an electric motor with a power of, for example, up to 2,000 watts and is designed as a multi-phase motor with three motor windings. The ends of the motor windings and the protective conductor PE are led by the motor M into the motor terminal box 3 to be wired in accordance with the use of the electric motor.

Die Motorleitungen 7 werden über die Anschlussvorrichtung 1 ferner mit den Anschlussleitungen 6 eines Spannungsanschlusses aus einem Schaltschrank 2 verbunden. Die Anschlussleitungen 6 bestehen aus drei Phasen L1, L2 und L3, einem Nullleiter N sowie einem Schutzleiter PE.The motor lines 7 are further connected via the connection device 1 with the connection lines 6 of a voltage connection from a cabinet 2. The connection lines 6 consist of three phases L1, L2 and L3, a neutral conductor N and a protective conductor PE.

In der Anschlussvorrichtung 1 ist zwischen den Anschlussleitungen 6 des Spannungsanschlusses und den Motorleitungen 7 des Motors M ein Adapter 10 angeordnet. Die Anschlussleitungen 6 des Netzanschlusses werden an dem einen Ende des Adapters 10 mit dem Adapter 10 verbunden, während an dem anderen Ende des Adapters 10 die Motorleitungen 7 des Motors M angeschlossen werden. Der Adapter 10 ist so ausgebildet, dass - je nach beabsichtigter Schaltung - jede einzelne Anschlussleitung des Spannungsanschlusses 6 mit einer einzelnen Motorleitung 7a bis 7d des Elektromotors M verbunden wird.In the connection device 1, an adapter 10 is arranged between the connection lines 6 of the voltage connection and the motor lines 7 of the motor M. The connection lines 6 of the mains connection are connected at one end of the adapter 10 to the adapter 10, while at the other end of the adapter 10, the motor lines 7 of the motor M are connected. The adapter 10 is designed so that - depending on the intended circuit - each individual connection line of the voltage terminal 6 is connected to a single motor line 7a to 7d of the electric motor M.

Der Adapter 10 ist ein eigenständiges, auswechselbares Bauteil mit innerer, fester Verdrahtung, so dass - je nach Anschlusserfordernis - ein geeignet ausgelegter Adapter 10 eingesetzt werden kann.The adapter 10 is an independent, interchangeable component with internal, fixed wiring, so that - depending on the connection requirement - a suitably designed adapter 10 can be used.

Bevorzugt ist ein erster Adapter 10a zwischen seinen Enden derart verdrahtet, dass jede Motorwicklung einer einzelnen Phase zugeordnet ist (Dreieckschaltung). Wie sich aus den Bildern der Figuren 4 und 5 ergibt, ist der PIN 1 (Nullleiter) nicht belegt; die PINs 2, 4 und 5 sind mit jeweils einer Phase L1, L2 und L3 verbunden, während der PIN 3 mit dem Schutzleiter PE verbunden ist.Preferably, a first adapter 10a is wired between its ends such that each motor winding is associated with a single phase (delta connection). As can be seen from the pictures of the FIGS. 4 and 5 results, the PIN 1 (neutral) is not used; the PINs 2, 4 and 5 are each connected to a phase L1, L2 and L3, while the PIN 3 is connected to the protective conductor PE.

Im Ausführungsbeispiel nach den Figuren 6 und 7 ist der Adapter zwischen seinen Enden derart verdrahtet, dass der Nullleiter N - PIN 1 - mit jeweils einem Wicklungsende und die Phasen L1, L2, L3 über die PINs 2, 4 und 5 mit jeweils einem Ende einer Motorwicklung verbunden sind. Der PIN 3 dient wieder der Verbindung mit dem Schutzleiter PE. Der Adapter dient zur Verdrahtung des Motors M in Sternschaltung.In the embodiment of the FIGS. 6 and 7 the adapter is wired between its ends such that the neutral conductor N - PIN 1 - are connected to one end of the winding and the phases L1, L2, L3 are connected via the PINs 2, 4 and 5 to one end of a motor winding. The PIN 3 is again the connection with the protective conductor PE. The adapter is used to wire the motor M in star connection.

Wie die Figuren 2 und 3 zeigen, sind alle Motorleitungen 7 des Elektromotors M mit einem Steckanschluss 8 verbunden, wobei dem Steckanschluss ein Adaptergehäuse 9 zur Aufnahme des Adapters 10 zugeordnet ist. Im Ausführungsbeispiel nach den Figuren 2 und 3 ist das Adaptergehäuse 9 einteilig mit dem Steckanschluss 8 bzw. dem Gehäuse 5 des Steckanschlusses 8 ausgebildet.As the FIGS. 2 and 3 show, all motor lines 7 of the electric motor M are connected to a plug connection 8, wherein the plug connection is associated with an adapter housing 9 for receiving the adapter 10. In the embodiment of the FIGS. 2 and 3 the adapter housing 9 is formed integrally with the plug connection 8 or the housing 5 of the plug connection 8.

Der Adapter 10 weist über seinen Außenumfang vorstehende Nocken 11 auf, die in zugeordnete Ausnehmungen 12 des Adaptergehäuses 9 eingreifen. Die Ausnehmungen 12 sind am freien Ende des Adaptergehäuses 9 ausgebildet und haben U-förmige Gestalt, die zur Stirnseite des Adaptergehäuses 9 offen sind. Der Adapter 10 wird axial in das Adaptergehäuse 9 eingeschoben, wobei die Nocken 11 in die Ausnehmungen 12 eingreifen und den Adapter in einer vorgegebenen Drehlage in dem Adaptergehäuse 9 festlegen. Abhängig von seiner Drehlage verbindet der Adapter 10 die Anschlussleitungen 6 des Spannungsanschlusses mit den Motorleitungen 7 des Elektromotors in einer vorgegebenen Zuordnung miteinander.The adapter 10 has over its outer circumference projecting cams 11, which engage in associated recesses 12 of the adapter housing 9. The recesses 12 are formed at the free end of the adapter housing 9 and have a U-shape, which are open to the front side of the adapter housing 9. The adapter 10 is inserted axially into the adapter housing 9, wherein the cams 11 engage in the recesses 12 and set the adapter in a predetermined rotational position in the adapter housing 9. Depending on its rotational position, the adapter 10 connects the connection lines 6 of the voltage connection with the motor lines 7 of the electric motor in a predetermined assignment with each other.

Wird z. B. der Motor in Dreieckschaltung betrieben, wird der Einsatz 10a verwendet, der in einer ersten Drehlage - Fig. 4 - den Motor als Rechtsläufer anschließt, während er in einer - um 180° verdrehten - Drehlage gemäß Fig. 5 den Motor als Linksläufer anschließt.If z. B. the motor operated in delta connection, the insert 10a is used, which in a first rotational position - Fig. 4 - Connects the engine as a right-hander, while in a - rotated by 180 ° - rotational position according to Fig. 5 connects the engine as a left-hander.

Der Adapter 10 dient somit nicht nur der Beschaltung der Wicklungen in Stern oder Dreieck, sonder auch der Drehrichtung bzw. der Drehrichtungsumkehr des Elektromotors M.The adapter 10 thus serves not only the wiring of the windings in star or triangle, but also the direction of rotation or the direction of rotation of the electric motor M.

Entsprechend ist in Sternschaltung in der einen Drehlage des Adapters 10b im Adaptergehäuse 9 der Motor für Rechtslauf beschaltet und in einer - um 180° verdrehten - Drehlage nach Fig. 7 für Linkslauf beschaltet.Accordingly, in star connection in the one rotational position of the adapter 10b in the adapter housing 9, the motor for clockwise connected and in a - rotated by 180 ° - rotational position after Fig. 7 wired for left-hand rotation.

Im Ausführungsbeispiel nach den Figuren 2 bis 7 ist der Steckanschluss 8 des Motors als Buchse ausgebildet, in die ein Stecker des Adapters 10 eingreift. Wird der Steckanschluss des Netzes auf den Stecker 13 des Adapters 10 aufgesteckt und die Überwurfmutter auf dem Gewinde 14 des Adaptergehäuses 9 festgedreht, ist der Netzanschluss der Anschlussleitungen 6 fest mit den Motorleitungen 7 verbunden.In the embodiment of the FIGS. 2 to 7 the plug-in connection 8 of the motor is designed as a socket into which a plug of the adapter 10 engages. If the plug connection of the network is plugged onto the plug 13 of the adapter 10 and the cap nut is tightened on the thread 14 of the adapter housing 9, the mains connection of the connection lines 6 is firmly connected to the motor lines 7.

Werden die Verdrahtungen als Festinstallation ausgeführt, ist es zweckmäßig, zumindest auf der dem Netz zugewandten Seite des Adapters 10 andere Anschlusstechniken zu verwenden. Im Ausführungsbeispiel nach den Figuren 8 bis 10 ist dies dargestellt. Der Adapter 10c weist auf der Netzanschlussseite 15 Einführöffnungen 16 für die Enden der Anschlussleitungen L1, L2, L3, PE und N auf. Die Anschlussleitungen 6 sind in vorgegebener Weise mit der Anschlussseite 15 zu verdrahten, wozu innerhalb des Adapters auf der Anschlussseite 15 in einer vorteilhaften Ausführung Federzugklemmen vorgesehen sind, wie sie aus der elektrischen Verbindungstechnik an sich bekannt sind. Nach Einstecken und elektrischer Kontaktierung der Anschlussleitungen 6 wird der Anschluss mittels einer Überwurfmutter 17 gesichert und das Adaptergehäuse 9 fest verschlossen. Dabei wird der Innenraum des Adaptergehäuses 9 gegen Eindringen von Schmutz und Feuchtigkeit entsprechend den bekannten Sicherheitsklassen abgeschlossen. Die Verbindung der Anschlussdrähte auf der Motoranschlussseite und/oder der Netzanschlussseite 15 können dem Einsatzfall entsprechend in angepasster Anschlusstechnik wie durch Schneidklemmen, Lötanschlüssen, Schraubklemmen oder dgl. erfolgen.If the wiring is executed as a permanent installation, it is expedient to use other connection techniques, at least on the side of the adapter 10 facing the net. In the embodiment of the FIGS. 8 to 10 this is shown. The adapter 10c has on the mains connection side 15 insertion openings 16 for the ends of the connecting lines L1, L2, L3, PE and N. The connecting lines 6 are to be wired in a predetermined manner to the connection side 15, for which purpose spring terminals are provided inside the adapter on the connection side 15 in an advantageous embodiment, as they are known per se from electrical connection technology. After insertion and electrical contacting of the connection lines 6, the connection is secured by means of a union nut 17 and the adapter housing 9 is firmly closed. In this case, the interior of the adapter housing 9 is closed against ingress of dirt and moisture according to the known safety classes. The connection of the connecting wires on the motor connection side and / or the power connection side 15 can be made according to the application in an adapted connection technology such as by insulation displacement terminals, solder terminals, screw terminals or the like.

Im Ausführungsbeispiel nach den Fig. 11 bis 14 ist ein selbst anschließbarer Steckverbinder gezeigt, der als Adapter ausgeführt ist. Wie die Fig. 11 und 12 zeigen, besteht der Steckverbinder 20 aus einem Anschlussgehäuse 21, der an seinem einer Netzleitung zugewandten Ende einen Quetschanschluss 22 zeigt, dessen Quetschmutter 23 durch Eindrehen in das Anschlussgehäuse 21 einen zugfesten, staub- und feuchtigkeitsdichten Anschluss gewährleistet.In the embodiment of the Fig. 11 to 14 a self-connectable connector is shown, which is designed as an adapter. As the FIGS. 11 and 12 show, the connector 20 consists of a terminal housing 21, which at its one power line end facing a crimp terminal 22, the crush nut 23 ensures by screwing into the terminal housing 21 a tensile, dust and moisture-tight connection.

Das in den Quetschanschluss 22 eingefädelte Anschlusskabel des Netzanschlusses 6 wird mit seinen Einzeladern in die Stecköffnungen 16 des Adapters 10 eingesteckt. Dabei können die Einzeladern des Netzanschlusses 6 mittels Federzugklemmen, Lötanschlüssen, Schneidklemmen, Schraubklemmen oder dgl. elektrisch kontaktiert und am Adapter 10 festgelegt werden.The threaded into the crimp terminal 22 connecting cable of the power supply 6 is inserted with its individual wires in the insertion openings 16 of the adapter 10. In this case, the individual wires of the mains connection 6 by means of spring terminals, solder terminals, insulation displacement terminals, screw terminals or the like can be electrically contacted and fixed to the adapter 10.

Der so an die Anschlussleitungen 6 des Netzanschlusses kontaktierte Adapter 10 wird in das Anschlussgehäuse 21 eingeschoben und durch Drehen des Anschlussgehäuses 21 fest auf das Gewinde 28 aufgeschraubt und so mit diesem verbunden. Eine Ringdichtung 24 auf dem Körper des Adapters 10 gewährleistet eine dichte Verbindung zwischen dem Anschlussgehäuse 21 und dem Adapter 10. Nachdem das Anschlussgehäuse 21 fest auf den Adapter 10 aufgeschraubt ist, wird der Quetschanschluss 22 durch Drehen der Quetschmutter 23 geschlossen, so dass auch auf der Netzanschlussseite des Netzanschlussgehäuses 21 ein staubdichter, feuchtigkeitsdichter Anschluss hergestellt ist. Der so gebaute Steckverbinder 20 (Fig. 11) weist nun an seinem motorseitigen Ende einen Steckanschluss 8 auf, der - wie Fig. 13 zeigt - in das Adaptergehäuse 9 der Anschlussvorrichtung 1 eingesteckt wird und über Steckkontakte eine elektrische Verbindung mit den Motorleitungen 7 eingeht. Um eine mechanisch feste Verbindung zu erreichen, weist das Anschlussgehäuse 21 eine Überwurfmutter 27 auf, die auf ein Gewinde 25 des Adaptergehäuses 9 aufschraubbar ist. Dabei dichtet der Adapter 10 mit einer Ringdichtung 26 gegenüber dem Adaptergehäuse 9 ab, so dass der Kontaktbereich im Adaptergehäuse 9 staub- und feuchtigkeitsdicht abgedichtet ist. In Fig. 14 ist die Anschlussvorrichtung 1 in montierter Stellung gezeigt.The so contacted to the connecting lines 6 of the power supply adapter 10 is inserted into the terminal housing 21 and screwed by turning the terminal housing 21 fixed to the thread 28 and so connected to this. A ring seal 24 on the body of the adapter 10 ensures a tight connection between the terminal housing 21 and the adapter 10. After the terminal housing 21 is screwed tightly to the adapter 10, the crimp terminal 22 is closed by turning the Quetschmutter 23, so that on the Power connection side of the power connector housing 21 is a dustproof, moisture-proof connection is made. The thus-built connector 20 (FIG. Fig. 11 ) now has at its motor end a plug connection 8, the - like Fig. 13 shows - is plugged into the adapter housing 9 of the connection device 1 and enters via plug contacts an electrical connection with the motor cables 7. In order to achieve a mechanically strong connection, the connection housing 21 has a union nut 27, which can be screwed onto a thread 25 of the adapter housing 9. In this case, the adapter 10 seals with an annular seal 26 relative to the adapter housing 9, so that the contact area in the adapter housing 9 dusty and is sealed moisture-proof. In Fig. 14 the connection device 1 is shown in the mounted position.

Im Ausführungsbeispiel nach den Fig. 11 bis 14 bildet somit der Adapter 10 einen eigenständigen Steckverbinder (Fig. 11, 12), der in das Adaptergehäuse 9 gesteckt, elektrisch kontaktiert und mechanisch dicht verbunden wird. Im Servicefall - z. B. bei einem defekten Motor - kann die Anschlussvorrichtung 1 einfach gelöst und der Motor ausgetauscht werden, ohne dass der Adapter 10 gewechselt oder Einzeladern der Anschlüsse gelöst werden müssen.In the embodiment of the Fig. 11 to 14 Thus, the adapter 10 forms an independent connector ( Fig. 11, 12th ), which is inserted into the adapter housing 9, electrically contacted and mechanically tightly connected. In case of service - z. As in a defective engine - the connection device 1 can be easily solved and the engine to be replaced without the adapter 10 must be changed or individual wires of the connections must be solved.

Claims (12)

Anschlussvorrichtung zur elektrischen Verbindung eines mehrphasigen Elektromotors (M) mit einem Spannungsanschluss, bestehend aus einem Anschlusskasten (3), in dem die Motorleitungen (7) des Elektromotors (M) mit den Anschlussleitungen (6) des Spannungsanschlusses verbunden sind,
dadurch gekennzeichnet, dass zwischen den Motorleitungen (7) und den Anschlussleitungen (6) ein Adapter (10) angeordnet ist, wobei der Adapter (10) als eigenständiges, auswechselbares Bauteil ausgebildet ist, und dass der Adapter eine einzelne Anschlussleitung (L1, L2, L3, N, PE) des Spannungsanschlusses (6) mit einer einzelnen Motorleitung (7a, 7b, 7c, 7d, 7e) des Elektromotors (M) verbindet.Connection device for electrically connecting a polyphase electric motor (M) to a voltage connection, consisting of a connection box (3), in which the motor lines (7) of the electric motor (M) are connected to the connection lines (6) of the voltage connection,
characterized in that between the motor lines (7) and the connecting lines (6) an adapter (10) is arranged, wherein the adapter (10) is formed as an independent, interchangeable component, and that the adapter is a single connecting line (L1, L2, L3, N, PE) of the voltage terminal (6) to a single motor line (7a, 7b, 7c, 7d, 7e) of the electric motor (M) connects. Anschlussvorrichtung nach Anspruch 1,
dadurch gekennzeichnet, dass der Adapter (10) abhängig von seiner Drehlage die Leitungen in einer vorgegebenen Zuordnung miteinander verbindet.Connecting device according to claim 1,
characterized in that the adapter (10) depending on its rotational position, the lines in a predetermined association with each other. Anschlussvorrichtung nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass der Adapter (10) in einer vorgegebenen Drehlage in einem Adaptergehäuse (9) aufgenommen ist.Connecting device according to claim 1 or 2,
characterized in that the adapter (10) is received in a predetermined rotational position in an adapter housing (9). Anschlussvorrichtung nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass der Adapter (10) in einer ersten Drehlage für einen Rechtslauf des Motors und in einer zweiten Drehlage für einen Linkslauf des Motors in ein Adaptergehäuse (9) einsetzbar ist.Connecting device according to one of claims 1 to 3,
characterized in that the adapter (10) is insertable in a first rotational position for a clockwise rotation of the motor and in a second rotational position for a counterclockwise rotation of the motor in an adapter housing (9). Anschlussvorrichtung nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, dass der Adapter (10) über Steckverbindungen (8) mit den Leitungen (6, 7) verbunden ist.Connecting device according to one of claims 1 to 4,
characterized in that the adapter (10) via plug connections (8) with the lines (6, 7) is connected. Anschlussvorrichtung nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, dass alle Motorleitungen (7) des Elektromotors (M) mit einem gemeinsamen Steckanschluss (8) verbunden sind.Connecting device according to one of claims 1 to 5,
characterized in that all motor lines (7) of the electric motor (M) are connected to a common plug connection (8). Anschlussvorrichtung nach Anspruch 6,
dadurch gekennzeichnet, dass der Steckanschluss (8) ein drehlagefestes Adaptergehäuse (9) zur Aufnahme des Adapters (10) aufweist.Connecting device according to claim 6,
characterized in that the plug connection (8) has a rotationally fixed adapter housing (9) for receiving the adapter (10). Anschlussvorrichtung nach Anspruch 7,
dadurch gekennzeichnet, dass das Adaptergehäuse (9) einteilig mit dem Steckanschluss (8) ausgebildet ist.Connecting device according to claim 7,
characterized in that the adapter housing (9) is formed integrally with the plug connection (8). Anschlussvorrichtung nach einem der Ansprüche 6 bis 8,
dadurch gekennzeichnet, dass der Steckanschluss (8) eine Motorbuchse ist, in die ein Stecker des Adapters (10) eingreift.Connecting device according to one of claims 6 to 8,
characterized in that the plug connection (8) is a motor socket, in which a plug of the adapter (10) engages. Anschlussvorrichtung nach einem der Ansprüche 1 bis 9,
dadurch gekennzeichnet, dass der Adapter (10) auf einer Anschlussseite (15) vorzugsweise Federzugklemmen, Lötanschlüsse, Schneidklemmen oder Schraubklemmen zum Anschließen der Anschlussleitungen (6) aufweist.Connecting device according to one of claims 1 to 9,
characterized in that the adapter (10) on a connection side (15) preferably spring terminals, solder terminals, insulation displacement terminals or screw terminals for connecting the connecting lines (6). Anschlussvorrichtung nach einem der Ansprüche 1 bis 10,
dadurch gekennzeichnet, dass der Adapter (10) als eigenständiger Steckverbinder ausgeführt ist.Connecting device according to one of claims 1 to 10,
characterized in that the adapter (10) is designed as a stand-alone connector. Anschlussvorrichtung nach Anspruch 11,
dadurch gekennzeichnet, dass der Adapter (10) zusammen mit dem Anschlussgehäuse (21) des Netzanschlusses eine montierbare Baueinheit bildet.Connecting device according to claim 11,
characterized in that the adapter (10) forms a mountable assembly together with the connection housing (21) of the mains connection.
EP20080001993 2008-02-02 2008-02-02 Variable motor connection Active EP2086066B1 (en)

Priority Applications (2)

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DE200850001199 DE502008001199D1 (en) 2008-02-02 2008-02-02 Variable motor connection
EP20080001993 EP2086066B1 (en) 2008-02-02 2008-02-02 Variable motor connection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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EP2086066B1 EP2086066B1 (en) 2010-08-25

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2237381A1 (en) 2009-03-31 2010-10-06 Harting Electric GmbH & Co. KG Connection device for electric connection of an AC engine
EP3128626A1 (en) * 2015-08-06 2017-02-08 EUCHNER GmbH + Co. KG Module interface

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Publication number Priority date Publication date Assignee Title
US3525971A (en) * 1968-07-22 1970-08-25 Pennsylvania Sewing Res Co Electric plug adapter for connecting in a three phase power circuit
US4258969A (en) * 1979-11-19 1981-03-31 Stallard Jerrel L Reversing plug connector
FR2597271A1 (en) * 1986-04-10 1987-10-16 Soupene Henri Device for reversing the direction of rotation of a movable three-phase electric motor
FR2617651A1 (en) * 1987-07-01 1989-01-06 Boursier Christian One-piece male-female reversing connector
US20040253876A1 (en) * 2003-06-16 2004-12-16 Tae Woo Kim Connecting apparatus for three phase induction motor of electric vehicle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3525971A (en) * 1968-07-22 1970-08-25 Pennsylvania Sewing Res Co Electric plug adapter for connecting in a three phase power circuit
US4258969A (en) * 1979-11-19 1981-03-31 Stallard Jerrel L Reversing plug connector
FR2597271A1 (en) * 1986-04-10 1987-10-16 Soupene Henri Device for reversing the direction of rotation of a movable three-phase electric motor
FR2617651A1 (en) * 1987-07-01 1989-01-06 Boursier Christian One-piece male-female reversing connector
US20040253876A1 (en) * 2003-06-16 2004-12-16 Tae Woo Kim Connecting apparatus for three phase induction motor of electric vehicle

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2237381A1 (en) 2009-03-31 2010-10-06 Harting Electric GmbH & Co. KG Connection device for electric connection of an AC engine
DE102009015705A1 (en) * 2009-03-31 2010-10-14 Harting Electric Gmbh & Co. Kg Connection device for the electrical connection of a three-phase motor
US8395290B2 (en) 2009-03-31 2013-03-12 Harting Electric Gmbh & Co. Kg Connecting device for electrically connecting a three-phase motor
DE102009015705B4 (en) * 2009-03-31 2014-11-13 Harting Electric Gmbh & Co. Kg Connection device for the electrical connection of a three-phase motor
EP3128626A1 (en) * 2015-08-06 2017-02-08 EUCHNER GmbH + Co. KG Module interface

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EP2086066B1 (en) 2010-08-25

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