EP2513920B1 - Device for removably fixing a conductor to a current transformer housing - Google Patents

Device for removably fixing a conductor to a current transformer housing Download PDF

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Publication number
EP2513920B1
EP2513920B1 EP10795351.5A EP10795351A EP2513920B1 EP 2513920 B1 EP2513920 B1 EP 2513920B1 EP 10795351 A EP10795351 A EP 10795351A EP 2513920 B1 EP2513920 B1 EP 2513920B1
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EP
European Patent Office
Prior art keywords
conductor
current transformer
end portion
transformer housing
fastening element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP10795351.5A
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German (de)
French (fr)
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EP2513920A1 (en
Inventor
Christoph Leifer
Carsten THÖRNER
Dat-Minh Trinh
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.)
Phoenix Contact GmbH and Co KG
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Phoenix Contact GmbH and Co KG
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Publication of EP2513920A1 publication Critical patent/EP2513920A1/en
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Publication of EP2513920B1 publication Critical patent/EP2513920B1/en
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    • 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
    • H01R4/28—Clamped connections, spring connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/22—Instruments transformers for single phase ac
    • H01F38/28—Current transformers
    • H01F38/30—Constructions

Definitions

  • the invention relates to a device for releasably securing a current conductor to a current transformer housing by means of a fastening element, which is guided by a holding element arranged on the current transformer housing and at least partially bears against the surface of the current conductor in a fixed state of the current conductor to the current transformer housing.
  • a current conductor is usually passed through an opening provided on the current transformer housing.
  • the attachment of the conductor to the current transformer housing is usually carried out via two screws or set screws, which are guided in two arranged on a current transformer housing holding elements.
  • the screws or the threaded pins are rotated within the holding elements by a purely rotational movement in the direction of the conductor until they rest with their cross-sectional area on the surface of the conductor.
  • the fixing of the conductor takes place on the current transformer housing.
  • the disadvantage here is that the screws or screws must cover a relatively long path for attachment to the conductor, which is done exclusively by a purely rotational movement, which is very power consuming and time-consuming, especially with a larger number to be fixed current transformer housing on a conductor.
  • a two-part current transformer housing which can be fastened by means of a fastening element as a clamp or cable tie to a current conductor.
  • a fastening element as a clamp or cable tie to a current conductor.
  • the fastening element rests in an annular groove of a holding element, wherein the holding element surrounds the conductor cylindrically and the current transformer housing bears against the end face thereof.
  • the two parts of the current transformer housing can be connected to another clamp or a further cable tie.
  • the invention is therefore based on the object to provide a device for releasably securing a conductor to a current transformer housing available, which is characterized by a simplified and faster installation.
  • a device comprising a current transformer housing and a fastening element, wherein the current transformer housing is designed such that a current conductor on the Stromwandlergeophuse is releasably fastened, the current transformer housing has a holding element and the holding element is arranged on the current transformer housing, the fastener is passed through the holding element, the fastener rests in a fixed state of the conductor to the current transformer housing at least partially on the surface of the conductor, the fastener in fastened state is looped around the peripheral surface of the conductor, the fastener having a first end portion and a first end portion opposite the second end portion, the first end portion is guided by a provided on the holding member first passage opening, and the fastener in a fixed position on the holding element can be fixed.
  • the holding element is preferably designed in the form of a flange, which is arranged on the current transformer on the outer surface of the current transformer housing.
  • two such holding elements are respectively arranged on two opposite side surfaces of the current transformer housing to the current transformer housing, so that in each case an inventive fastener can be passed through both the first holding element and by the second holding element.
  • the attachment of the conductor takes place according to the invention in that in the fastened state, the guided in the holding element fastener is looped around the peripheral surface of the conductor.
  • the fastener is preferably formed in the form of an elongated rod, which is elastic and thus flexible bendable.
  • the fastening element is preferably made of a plastic.
  • the conductor When attached, the conductor is located on the pointing in the direction of the conductor outer surface of the loop-shaped fastener and is held by this in position. The conductor is thus passed through the loop of the fastener and is held by this loop and secured to the current transformer housing.
  • the fastening element is preferably guided around the transversely extending to the longitudinal axis of the conductor circumferential surface of the conductor. Characterized in that the fastener is looped around the conductor to attach the current transformer housing to the conductor, a particularly simple and quick installation for fixing the conductor is made possible.
  • the fastener flexibly adaptable to the dimension of the peripheral surface of the conductor, so that regardless of the dimensions of the peripheral surface of the conductor of the conductor is fixed and secure against slipping by means of the fastener.
  • the fastening element can be fixed by the inventive design in a fixed position on the holding element.
  • the fastening element is preferably guided, starting from the end section of the fastening element held in the first through-opening, by means of the second end section in a loop around the circumferential surface of the current conductor.
  • the first portion has a recess through which the second end portion can be passed.
  • Fixing the conductor by the fastener is guided bent in the form of a loop.
  • the fastening element can be flexibly adapted to the size of the peripheral surface of the conductor, so that regardless of the Size of the conductor of the conductor is firmly fixed by means of the fastener. This allows a particularly flexible attachment or assembly.
  • the fastener may be formed for example in the form of a cable tie.
  • the second end portion is passed through a provided on the holding member second passage opening.
  • the first passage opening and the second passage opening are preferably formed parallel to each other on the holding element.
  • the fastener is first performed with its first end portion through the first passage opening, then the fastener is guided around the peripheral surface of the conductor until the second end portion can be passed through the second passage opening.
  • the first end portion and / or at the second end portion Detent means are formed.
  • the latching means which may be formed, for example, as latching lugs
  • the one or more end portions of the fastener can be fixed within the through holes, depending on the number of latching means provided, the implementation of the end sections through the through holes arbitrarily and very flexible to the size of the peripheral surface of the Power conductor can be adjusted.
  • the first through opening and / or the second through opening preferably each have a hook element, in which the latching means of the first end portion and / or the second end portion can engage, so that an attachment of the end portions in the desired position is possible. If both end sections are provided with latching means, both end sections can be guided uniformly through the two through openings provided in the retaining element, so that a uniform load distribution in the fastened state can act on the fastening element.
  • an actuating element for releasing the first end portion from the first passage opening and / or for releasing the second end portion from the second passage opening is provided according to a further preferred embodiment of the invention on the holding element.
  • a hook element provided within the first passage opening and / or the second passage opening can be actuated for fixing the first end section and / or the second end section within the first passage opening and / or the second passage opening.
  • the hook element may be detachable from the latching means provided on the end sections or that the hook element may be unhooked from the latching means such that the first end section and / or the second end section are free within the first passage opening and / or the second passage opening are movable or displaceable.
  • the actuating element is preferably provided in the form of a push button arranged on the holding element.
  • a device according to a first embodiment is shown, which is not included in the present claims.
  • a current conductor 10 is passed through a provided on the current transformer housing 12 through opening 14 and by means of two provided on the current transformer housing 12 fasteners 18, which are each guided through a two opposing side surfaces of the power converter housing 12 arranged holding elements 16 attached.
  • the retaining elements 16 each have a first passage opening 20, through which the fastening elements 18 are guided.
  • a fastening element 18 has a first end section 22, which is guided through the passage opening 20 of the retaining element 16.
  • a second end section 24 of the fastening element 18 lying opposite the first end section 22 is passed through a recess 26 provided on the fastening element 18.
  • Fig. 1 the device is shown in a state in which the current conductor 10 is not yet fastened by means of the fastening element 18, since the second end portion 24 of the fastening element 18 is not yet passed through the recess 26 of the first end portion 22.
  • the fastening element 18 is in this case preferably designed in the form of a cable tie. In the attached state, not shown here, the fastening element 18 is looped around the peripheral surface of the conductor 10.
  • Fig. 2 and 3 show a device according to the invention according to a second embodiment, in which a conductor 10 is passed through a provided on the current transformer housing 12 through opening 14.
  • a fastening element 18 is provided on both side surfaces of the current transformer housing 12, which in the fastened state is looped around the peripheral surface of the conductor 10, as shown in FIG Fig. 2 is recognizable.
  • the fastener 18 is in the form of an elongate rod made of a flexible material.
  • the fastening element 18 has a first end section 22 and a second end section 24, the first end section 22 being guided through a first through opening 20 formed on the retaining element 16 and the second end section 24 through a second through opening 28 formed on the retaining element 16.
  • first end portion 22 and at the second end portion 24 each have a plurality of locking means 30 are formed in the form of locking lugs, which can be passed through the through holes 20, 28 and, for example, on within the through holes 20, 28 formed hook elements, not shown, are latched, which can engage in the locking means 30.
  • a provided on the holding element 16 actuating element 32 is provided, for example in the form of a push button. By actuating the actuating element 30, the hook elements are hooked out of the latching means so that the latching means 30 are released and the first end section 22 and the second end section 24 of the fastening element 18 are freely displaceable in the first through opening 20 and the second through opening 28.
  • Fig. 3 shows a more detailed representation of the device according to the invention according to the second embodiment in the form of a plan view from above of the current transformer housing 12 and the current conductor 10, in which case the holding member 16 is shown in a sectional view. It can be seen here that the actuating element 32 can engage in spring arms 34 provided within the retaining element 16.
  • Fig. 3 For example, the fastener 18 is shown in a position where the fastener 18 is fixed within the through holes 20, 28 and held in position by the actuator 32.
  • the fastening element 32 engages in the spring arms 34 and is held by them in this position, whereby the fastening element 18 is released by the actuating element 32 and thereby freely movable within the through holes 20, 28 is.
  • the spring arms 34 Once the user lets go of the actuator 32, it is due to the spring arms 34 in his in Fig. 3 move back shown position so that the end portions 22, 24 of the fastener 18 are fixed again and no longer within the through holes 20, 28 are displaced.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Connection Of Plates (AREA)
  • Mounting Components In General For Electric Apparatus (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zur lösbaren Befestigung eines Stromleiters an einem Stromwandlergehäuse mittels eines Befestigungselementes, welches durch ein am Stromwandlergehäuse angeordnetes Halteelement geführt ist und in einem befestigten Zustand des Stromleiters an dem Stromwandlergehäuse zumindest teilweise an der Oberfläche des Stromleiters anliegt.The invention relates to a device for releasably securing a current conductor to a current transformer housing by means of a fastening element, which is guided by a holding element arranged on the current transformer housing and at least partially bears against the surface of the current conductor in a fixed state of the current conductor to the current transformer housing.

Ein Stromleiter wird üblicherweise durch eine an dem Stromwandlergehäuse vorgesehene Öffnung geführt. Die Befestigung des Stromleiters an dem Stromwandlergehäuse erfolgt üblicherweise über zwei Schrauben oder Gewindestifte, welche in zwei an einem Stromwandlergehäuse angeordneten Halteelementen geführt sind. Zur Befestigung werden die Schrauben bzw. die Gewindestifte innerhalb der Halteelemente durch eine rein rotatorische Bewegung in Richtung des Stromleiters gedreht bis sie mit ihrer Querschnittsfläche an der Oberfläche des Stromleiters anliegen. Durch ein weiteres Drehen der Schrauben bzw. der Gewindestifte erfolgt die Fixierung des Stromleiters an dem Stromwandlergehäuse.A current conductor is usually passed through an opening provided on the current transformer housing. The attachment of the conductor to the current transformer housing is usually carried out via two screws or set screws, which are guided in two arranged on a current transformer housing holding elements. For attachment, the screws or the threaded pins are rotated within the holding elements by a purely rotational movement in the direction of the conductor until they rest with their cross-sectional area on the surface of the conductor. By further turning the screws or the threaded pins, the fixing of the conductor takes place on the current transformer housing.

Nachteilig hierbei ist, dass die Schrauben bzw. die Gewindestifte einen relativ langen Weg zur Befestigung an dem Stromleiter zurücklegen müssen, wobei dies ausschließlich durch eine rein rotatorische Bewegung erfolgt, was sehr kraftaufwändig und zeitintensiv ist, insbesondere bei einer größeren Anzahl zu fixierender Stromwandlergehäuse an einem Stromleiter.The disadvantage here is that the screws or screws must cover a relatively long path for attachment to the conductor, which is done exclusively by a purely rotational movement, which is very power consuming and time-consuming, especially with a larger number to be fixed current transformer housing on a conductor.

Aus der FR 2 707 037 A1 ist ein zweiteiliges Stromwandlergehäuse bekannt, das mittels eines Befestigungselements als Schelle bzw. Kabelbinder an einem Stromleiter befestigbar ist. Konkret ist vorgesehen, dass das Befestigungselement in einer Ringnut eines Halteelements anliegt, wobei das Halteelement den Leiter zylindrisch umgibt und das Stromwandlergehäuse an dessen Stirnfläche anliegt. Die zwei Teile des Stromwandlergehäuses sind mit einer weiteren Schelle oder einem weiteren Kabelbinder verbindbar.From the FR 2 707 037 A1 a two-part current transformer housing is known, which can be fastened by means of a fastening element as a clamp or cable tie to a current conductor. Specifically, it is provided that the fastening element rests in an annular groove of a holding element, wherein the holding element surrounds the conductor cylindrically and the current transformer housing bears against the end face thereof. The two parts of the current transformer housing can be connected to another clamp or a further cable tie.

Aus der DE 197 33 852 A1 ist ein Schienenstromwandler bekannt, der eine Schraubbefestigung zur Montage an einer Stromschiene aufweist.From the DE 197 33 852 A1 a rail current transformer is known which has a screw fastening for mounting on a busbar.

Aus der JP H03 13797 U ist ein Schienenstromwandler nach dem Oberbegriff von Anspruch 1 bekannt.From the JP H03 13797 U a rail current transformer according to the preamble of claim 1 is known.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung zur lösbaren Befestigung eines Stromleiters an einem Stromwandlergehäuse zur Verfügung zu stellen, welche sich durch eine vereinfachtere und schnellere Montage auszeichnet.The invention is therefore based on the object to provide a device for releasably securing a conductor to a current transformer housing available, which is characterized by a simplified and faster installation.

Die Lösung der Aufgabe erfolgt erfindungsgemäß durch die Merkmale des Anspruchs 1. Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.The object is achieved by the features of claim 1. Advantageous embodiments of the invention are specified in the dependent claims.

Erfindungsgemäß ist somit eine Vorrichtung angegeben, aufweisend ein Stromwandlergehäuse und ein Befestigungselement, wobei das Stromwandlergehäuse derart ausgestaltet ist, dass ein Stromleiter an dem Stromwandlergehäuse lösbar befestigbar ist, das Stromwandlergehäuse ein Halteelement aufweist und das Halteelement an dem Stromwandlergehäuse angeordnet ist, das Befestigungselement durch das Halteelement hindurchgeführt ist, das Befestigungselement in einem befestigten Zustand des Stromleiters an dem Stromwandlergehäuse zumindest teilweise an der Oberfläche des Stromleiters anliegt, das Befestigungselement im befestigten Zustand schlaufenförmig um die Umfangsfläche des Stromleiters herumgeführt ist, das Befestigungselement einen ersten Endabschnitt und einen dem ersten Endabschnitt gegenüberliegenden zweiten Endabschnitt aufweist, der erste Endabschnitt durch eine an dem Halteelement vorgesehene erste Durchgangsöffnung führbar ist, und das Befestigungselement in einer festen Position an dem Halteelement fixierbar ist.According to the invention, therefore, a device is provided, comprising a current transformer housing and a fastening element, wherein the current transformer housing is designed such that a current conductor on the Stromwandlergehäuse is releasably fastened, the current transformer housing has a holding element and the holding element is arranged on the current transformer housing, the fastener is passed through the holding element, the fastener rests in a fixed state of the conductor to the current transformer housing at least partially on the surface of the conductor, the fastener in fastened state is looped around the peripheral surface of the conductor, the fastener having a first end portion and a first end portion opposite the second end portion, the first end portion is guided by a provided on the holding member first passage opening, and the fastener in a fixed position on the holding element can be fixed.

Das Halteelement ist vorzugsweise in Form eines Flansches ausgebildet, welches an dem Stromwandler an der Außenfläche des Stromwandlergehäuses angeordnet ist. Dabei sind vorzugsweise zwei derartige Halteelemente jeweils an zwei sich gegenüberliegenden Seitenflächen des Stromwandlergehäuses an dem Stromwandlergehäuse angeordnet, so dass sowohl durch das erste Halteelement als auch durch das zweite Halteelement jeweils ein erfindungsgemäßes Befestigungselement hindurchgeführt werden kann. Die Befestigung des Stromleiters erfolgt erfindungsgemäß dadurch, dass im befestigten Zustand das in dem Halteelement geführte Befestigungselement schlaufenförmig um die Umfangsfläche des Stromleiters geführt ist. Das Befestigungselement ist dabei vorzugsweise in Form eines länglichen Stabes ausgebildet, welcher elastisch ausgebildet ist und damit flexibel biegbar ist. Das Befestigungselement ist vorzugsweise aus einem Kunststoff hergestellt. Im befestigten Zustand liegt der Stromleiter an der in Richtung Stromleiter zeigenden Außenfläche des als Schlaufe geformten Befestigungselements an und wird durch diese in seiner Position gehalten. Der Stromleiter ist somit durch die Schlaufe des Befestigungselements geführt und wird durch diese Schlaufe gehalten und an dem Stromwandlergehäuse befestigt. Das Befestigungselement ist dabei vorzugsweise um die quer zur Längsachse des Stromleiters verlaufende Umfangsfläche des Stromleiters geführt. Dadurch, dass das Befestigungselement schlaufenförmig um den Stromleiter geführt ist, um das Stromwandlergehäuse an dem Stromleiter zu befestigen, ist eine besonders einfache und schnelle Montage zur Fixierung des Stromleiters ermöglicht. Zudem ist durch die schlaufenförmige Ausgestaltung des Befestigungselements im befestigten Zustand das Befestigungselement flexibel an die Dimension der Umfangsfläche des Stromleiters anpassbar, so dass unabhängig von den Abmessungen der Umfangsfläche des Stromleiters der Stromleiter fest und verrutschsicher mittels des Befestigungselements fixierbar ist.The holding element is preferably designed in the form of a flange, which is arranged on the current transformer on the outer surface of the current transformer housing. In this case, preferably two such holding elements are respectively arranged on two opposite side surfaces of the current transformer housing to the current transformer housing, so that in each case an inventive fastener can be passed through both the first holding element and by the second holding element. The attachment of the conductor takes place according to the invention in that in the fastened state, the guided in the holding element fastener is looped around the peripheral surface of the conductor. The fastener is preferably formed in the form of an elongated rod, which is elastic and thus flexible bendable. The fastening element is preferably made of a plastic. When attached, the conductor is located on the pointing in the direction of the conductor outer surface of the loop-shaped fastener and is held by this in position. The conductor is thus passed through the loop of the fastener and is held by this loop and secured to the current transformer housing. The fastening element is preferably guided around the transversely extending to the longitudinal axis of the conductor circumferential surface of the conductor. Characterized in that the fastener is looped around the conductor to attach the current transformer housing to the conductor, a particularly simple and quick installation for fixing the conductor is made possible. In addition, by the loop-shaped configuration of the fastener in the fastened state, the fastener flexibly adaptable to the dimension of the peripheral surface of the conductor, so that regardless of the dimensions of the peripheral surface of the conductor of the conductor is fixed and secure against slipping by means of the fastener.

Das Befestigungselement kann durch die erfindungsgemäße Ausgestaltung in einer festen Position an dem Halteelement fixiert sein. Zur Fixierung des Stromleiters wird das Befestigungselement vorzugsweise ausgehend von dem in der ersten Durchgangsöffnung gehaltenen Endabschnitts des Befestigungselements mittels des zweiten Endabschnittes schlaufenförmig um die Umfangsfläche des Stromleiters geführt.The fastening element can be fixed by the inventive design in a fixed position on the holding element. In order to fix the current conductor, the fastening element is preferably guided, starting from the end section of the fastening element held in the first through-opening, by means of the second end section in a loop around the circumferential surface of the current conductor.

In einer nicht von den vorliegenden Ansprüchen umfassten Ausführungsform weist der erste Abschnitt eine Ausnehmung auf, durch welche der zweite Endabschnitt hindurchführbar ist. Bei der Durchführung des zweiten Endabschnittes durch die Ausnehmung an dem ersten Endabschnitt erfolgt die Befestigung des Stromleiters, indem das Befestigungselement in Form einer Schlaufe gebogen geführt wird. Dadurch, dass der zweite Endabschnitt durch eine an dem ersten Endabschnitt vorgesehene Ausnehmung durchführbar ist, wobei der zweite Endabschnitt dabei vorzugsweise beliebig weit durch die Ausnehmung hindurchführbar ist, kann das Befestigungselement flexibel an die Größe der Umfangsfläche des Stromleiters angepasst werden, so dass unabhängig von der Größe des Stromleiters der Stromleiter mittels des Befestigungselements fest fixierbar ist. Dadurch ist eine besonders flexible Befestigung bzw. Montage ermöglicht. Das Befestigungselement kann dabei beispielsweise in Form eines Kabelbinders ausgebildet sein.In an embodiment not encompassed by the present claims, the first portion has a recess through which the second end portion can be passed. In the implementation of the second end portion through the recess at the first end portion of the takes place Fixing the conductor by the fastener is guided bent in the form of a loop. Characterized in that the second end portion is feasible by a recess provided on the first end portion, wherein the second end portion is preferably guided arbitrarily far through the recess, the fastening element can be flexibly adapted to the size of the peripheral surface of the conductor, so that regardless of the Size of the conductor of the conductor is firmly fixed by means of the fastener. This allows a particularly flexible attachment or assembly. The fastener may be formed for example in the form of a cable tie.

Gemäß der vorliegenden Erfindung wird der zweite Endabschnitt durch eine an dem Halteelement vorgesehene zweite Durchgangsöffnung hindurchgeführt. Die erste Durchgangsöffnung und die zweite Durchgangsöffnung sind dabei vorzugsweise parallel zueinander an dem Halteelement ausgeformt. Vorzugsweise wird das Befestigungselement zunächst mit seinem ersten Endabschnitt durch die erste Durchgangsöffnung durchgeführt, anschließend wird das Befestigungselement um die Umfangsfläche des Stromleiters herumgeführt bis der zweite Endabschnitt durch die zweite Durchgangsöffnung hindurchführbar ist. Dadurch ist es möglich, sowohl den ersten Endabschnitt als auch den zweiten Endabschnitt sicher an dem Halteelement zu befestigen, wodurch insbesondere eine besonders einfache Handhabung der erfindungsgemäßen Vorrichtung zur Befestigung eines Stromleiters für einen Benutzer ermöglicht ist.According to the present invention, the second end portion is passed through a provided on the holding member second passage opening. The first passage opening and the second passage opening are preferably formed parallel to each other on the holding element. Preferably, the fastener is first performed with its first end portion through the first passage opening, then the fastener is guided around the peripheral surface of the conductor until the second end portion can be passed through the second passage opening. This makes it possible to secure both the first end portion and the second end portion to the holding element, which in particular a particularly simple handling of the device according to the invention for securing a conductor is made possible for a user.

Ferner ist es bevorzugt vorgesehen, dass an dem ersten Endabschnitt und/oder an dem zweiten Endabschnitt Rastmittel ausgebildet sind. Mittels der Rastmittel, welche beispielsweise als Rastnasen ausgebildet sein können, können der oder die Endabschnitte des Befestigungselements innerhalb der Durchgangsöffnungen fixiert werden, wobei in Abhängigkeit der Anzahl der vorgesehenen Rastmittel die Durchführung der Endabschnitte durch die Durchgangsöffnungen beliebig und sehr flexibel an die Größe der Umfangsfläche des Stromleiters angepasst werden kann. Die erste Durchgangsöffnung und/oder die zweite Durchgangsöffnung weisen dabei vorzugsweise jeweils ein Hakenelement auf, in welche die Rastmittel des ersten Endabschnittes und/oder des zweiten Endabschnittes eingreifen können, so dass eine Befestigung der Endabschnitte in der gewünschten Position ermöglicht ist. Sind beide Endabschnitte mit Rastmittel versehen, so können beide Endabschnitte gleichmäßig durch die beiden in dem Halteelement vorgesehenen Durchgangsöffnungen hindurchgeführt werden, so dass eine gleichmäßige Lastverteilung im befestigten Zustand auf das Befestigungselement wirken kann.Furthermore, it is preferably provided that at the first end portion and / or at the second end portion Detent means are formed. By means of the latching means, which may be formed, for example, as latching lugs, the one or more end portions of the fastener can be fixed within the through holes, depending on the number of latching means provided, the implementation of the end sections through the through holes arbitrarily and very flexible to the size of the peripheral surface of the Power conductor can be adjusted. The first through opening and / or the second through opening preferably each have a hook element, in which the latching means of the first end portion and / or the second end portion can engage, so that an attachment of the end portions in the desired position is possible. If both end sections are provided with latching means, both end sections can be guided uniformly through the two through openings provided in the retaining element, so that a uniform load distribution in the fastened state can act on the fastening element.

Um eine verbesserte Handhabung der erfindungsgemäßen Vorrichtung zu ermöglichen, ist nach einer weiter bevorzugten Ausgestaltung der Erfindung an dem Halteelement ein Betätigungselement zum Lösen des ersten Endabschnittes aus der ersten Durchgangsöffnung und/oder zum Lösen des zweiten Endabschnittes aus der zweiten Durchgangsöffnung vorgesehen. Mittels des Betätigungselements kann beispielsweise ein innerhalb der ersten Durchgangsöffnung und/oder der zweiten Durchgangsöffnung vorgesehenes Hakenelement zum Fixieren des ersten Endabschnittes und/oder des zweiten Endabschnittes innerhalb der ersten Durchgangsöffnung und/oder der zweiten Durchgangsöffnung betätigbar sein. Beispielsweise kann durch ein Betätigen des Betätigungselements das in der oder den Durchgangsöffnungen vorgesehene Hakenelement aus den an den Endabschnitten vorgesehenen Rastmitteln lösbar sein bzw. dass das Hakenelement kann aus den Rastmitteln ausgehakt werden, so dass der erste Endabschnitt und/oder der zweite Endabschnitt frei innerhalb der ersten Durchgangsöffnung und/oder der zweiten Durchgangsöffnung bewegbar bzw. verschiebbar sind. Das Betätigungselement ist vorzugsweise in Form eines an dem Halteelement angeordneten Druckknopfes vorgesehen. Durch das Vorsehen eines derartigen Betätigungselements kann eine besonders einfache und schnelle Montage des Befestigungselements realisiert werden.In order to enable improved handling of the device according to the invention, an actuating element for releasing the first end portion from the first passage opening and / or for releasing the second end portion from the second passage opening is provided according to a further preferred embodiment of the invention on the holding element. By means of the actuating element, for example, a hook element provided within the first passage opening and / or the second passage opening can be actuated for fixing the first end section and / or the second end section within the first passage opening and / or the second passage opening. For example, by pressing the hook element may be detachable from the latching means provided on the end sections or that the hook element may be unhooked from the latching means such that the first end section and / or the second end section are free within the first passage opening and / or the second passage opening are movable or displaceable. The actuating element is preferably provided in the form of a push button arranged on the holding element. By providing such an actuating element, a particularly simple and quick installation of the fastening element can be realized.

Nachfolgend wird die Erfindung unter Bezugnahme auf die anliegenden Zeichnungen anhand bevorzugter Ausführungsformen näher erläutert.The invention will be explained in more detail with reference to the accompanying drawings with reference to preferred embodiments.

Es zeigen:

Fig. 1
eine schematische Darstellung einer Vorrichtung gemäß einer ersten Ausführungsform, die nicht von den vorliegenden Ansprüchen umfasst ist;
Fig. 2
eine schematische Darstellung einer erfindungsgemäßen Vorrichtung gemäß einer zweiten Ausführungsform; und
Fig. 3
eine schematische Draufsicht auf die in Fig. 2 gezeigte erfindungsgemäße Vorrichtung, wobei das Halteelement in einer Schnittdarstellung gezeigt ist.
Show it:
Fig. 1
a schematic representation of a device according to a first embodiment, which is not covered by the present claims;
Fig. 2
a schematic representation of a device according to the invention according to a second embodiment; and
Fig. 3
a schematic plan view of the in Fig. 2 shown inventive device, wherein the holding element is shown in a sectional view.

In Fig. 1 ist eine Vorrichtung gemäß einer ersten Ausführungsform gezeigt, die nicht von den vorliegenden Ansprüchen umfasst ist. Bei dieser Vorrichtung ist ein Stromleiter 10 durch eine an dem Stromwandlergehäuse 12 vorgesehene Durchgangsöffnung 14 hindurchgeführt und mittels zweier an dem Stromwandlergehäuse 12 vorgesehener Befestigungselemente 18, welche durch jeweils ein zwei sich gegenüberliegenden Seitenflächen des Stromwandlergehäuses 12 angeordneten Halteelementen 16 hindurchführbar sind, befestigt. Bei der in Fig. 1 gezeigten Ausführungsform weisen die Halteelemente 16 jeweils eine erste Durchgangsöffnung 20 auf, durch welche die Befestigungselemente 18 geführt sind. Dabei weist ein Befestigungselement 18 einen ersten Endabschnitt 22 auf, welcher durch die Durchgangsöffnung 20 des Halteelements 16 geführt ist. Zur Befestigung des Stromleiters 10 an dem Stromwandlergehäuse 12 wird ein dem ersten Endabschnitt 22 gegenüberliegender zweiter Endabschnitt 24 des Befestigungselements 18 durch eine an dem Befestigungselement 18 vorgesehene Ausnehmung 26 hindurchgeführt. In Fig. 1 ist die Vorrichtung in einem Zustand gezeigt, bei der der Stromleiter 10 noch nicht mittels des Befestigungselements 18 befestigt ist, da der zweite Endabschnitt 24 des Befestigungselements 18 noch nicht durch die Ausnehmung 26 des ersten Endabschnittes 22 hindurchgeführt ist. Das Befestigungselement 18 ist hierbei vorzugsweise in Form eines Kabelbinders ausgebildet. Im hier nicht gezeigten befestigten Zustand ist das Befestigungselement 18 schlaufenförmig um die Umfangsfläche des Stromleiters 10 geführt.In Fig. 1 a device according to a first embodiment is shown, which is not included in the present claims. In this device, a current conductor 10 is passed through a provided on the current transformer housing 12 through opening 14 and by means of two provided on the current transformer housing 12 fasteners 18, which are each guided through a two opposing side surfaces of the power converter housing 12 arranged holding elements 16 attached. At the in Fig. 1 In the embodiment shown, the retaining elements 16 each have a first passage opening 20, through which the fastening elements 18 are guided. In this case, a fastening element 18 has a first end section 22, which is guided through the passage opening 20 of the retaining element 16. For fixing the current conductor 10 to the current transformer housing 12, a second end section 24 of the fastening element 18 lying opposite the first end section 22 is passed through a recess 26 provided on the fastening element 18. In Fig. 1 the device is shown in a state in which the current conductor 10 is not yet fastened by means of the fastening element 18, since the second end portion 24 of the fastening element 18 is not yet passed through the recess 26 of the first end portion 22. The fastening element 18 is in this case preferably designed in the form of a cable tie. In the attached state, not shown here, the fastening element 18 is looped around the peripheral surface of the conductor 10.

Fig. 2 und 3 zeigen eine erfindungsgemäße Vorrichtung gemäß einer zweiten Ausführungsform, bei welcher ein Stromleiter 10 durch eine an dem Stromwandlergehäuse 12 vorgesehenen Durchgangsöffnung 14 hindurchgeführt ist. Fig. 2 and 3 show a device according to the invention according to a second embodiment, in which a conductor 10 is passed through a provided on the current transformer housing 12 through opening 14.

Zur Befestigung des Stromleiters 10 ist an beiden Seitenflächen des Stromwandlergehäuses 12 ein Befestigungselement 18 vorgesehen, welches im befestigten Zustand schlaufenförmig um die Umfangsfläche des Stromleiters 10 herumgeführt ist, wie dies in Fig. 2 erkennbar ist. Das Befestigungselement 18 ist in Form eines länglichen aus einem flexiblen Material hergestellten Stabes ausgebildet. Das Befestigungselement 18 weist einen ersten Endabschnitt 22 und einen zweiten Endabschnitt 24 auf, wobei der erste Endabschnitt 22 durch eine erste an dem Halteelement 16 ausgebildete Durchgangsöffnung 20 und der zweite Endabschnitt 24 durch eine zweite an dem Halteelement 16 ausgebildete Durchgangsöffnung 28 hindurchgeführt ist. An dem ersten Endabschnitt 22 und an dem zweiten Endabschnitt 24 sind jeweils mehrere Rastmittel 30 in Form von Rastnasen ausgebildet, welche durch die Durchgangsöffnungen 20, 28 hindurchführbar sind und beispielsweise an innerhalb der Durchgangsöffnungen 20, 28 ausgebildeten Hakenelemente, hier nicht gezeigt, einrastbar sind, welche in die Rastmittel 30 eingreifen können. Zum Lösen des Befestigungselements 18 ist ein an dem Halteelement 16 vorgesehenes Betätigungselement 32 beispielsweise in Form eines Druckknopfes vorgesehen. Durch Betätigen des Betätigungselements 30 haken die Hakenelemente aus den Rastmitteln aus, so dass die Rastmittel 30 freigegeben werden und der erste Endabschnitt 22 und der zweite Endabschnitt 24 des Befestigungselements 18 in der ersten Durchgangsöffnung 20 und der zweiten Durchgangsöffnung 28 frei verschiebbar sind.For attachment of the conductor 10, a fastening element 18 is provided on both side surfaces of the current transformer housing 12, which in the fastened state is looped around the peripheral surface of the conductor 10, as shown in FIG Fig. 2 is recognizable. The fastener 18 is in the form of an elongate rod made of a flexible material. The fastening element 18 has a first end section 22 and a second end section 24, the first end section 22 being guided through a first through opening 20 formed on the retaining element 16 and the second end section 24 through a second through opening 28 formed on the retaining element 16. At the first end portion 22 and at the second end portion 24 each have a plurality of locking means 30 are formed in the form of locking lugs, which can be passed through the through holes 20, 28 and, for example, on within the through holes 20, 28 formed hook elements, not shown, are latched, which can engage in the locking means 30. To release the fastening element 18, a provided on the holding element 16 actuating element 32 is provided, for example in the form of a push button. By actuating the actuating element 30, the hook elements are hooked out of the latching means so that the latching means 30 are released and the first end section 22 and the second end section 24 of the fastening element 18 are freely displaceable in the first through opening 20 and the second through opening 28.

Fig. 3 zeigt eine detailliertere Darstellung der erfindungsgemäßen Vorrichtung gemäß der zweiten Ausführungsform in Form einer Draufsicht von oben auf das Stromwandlergehäuse 12 und den Stromleiter 10, wobei hierbei das Halteelement 16 in einer geschnittenen Darstellung gezeigt ist. Hierbei ist zu erkennen, dass das Betätigungselement 32 in innerhalb des Halteelements 16 vorgesehener Federarme 34 eingreifen kann. Fig. 3 shows a more detailed representation of the device according to the invention according to the second embodiment in the form of a plan view from above of the current transformer housing 12 and the current conductor 10, in which case the holding member 16 is shown in a sectional view. It can be seen here that the actuating element 32 can engage in spring arms 34 provided within the retaining element 16.

In Fig. 3 ist das Befestigungselement 18 in einer Position gezeigt, bei der das Befestigungselement 18 fest innerhalb der Durchgangsöffnungen 20, 28 fixiert ist und mittels des Betätigungselements 32 in der Position gehalten wird. Durch ein Betätigen des Betätigungselements 32 in Richtung des Stromwandlergehäuses 12 greift das Befestigungselement 32 in die Federarme 34 ein und wird von diesen in dieser Position gehalten, wobei dadurch das Befestigungselement 18 von dem Betätigungselement 32 freigegeben wird und dadurch innerhalb der Durchgangsöffnungen 20, 28 frei beweglich ist. Sobald der Benutzer das Betätigungselement 32 wieder los lässt, wird es sich aufgrund der Federarme 34 in seine in Fig. 3 gezeigte Position zurückbewegen, so dass die Endabschnitte 22, 24 des Befestigungselements 18 wieder fixiert sind und nicht mehr innerhalb der Durchgangsöffnungen 20, 28 verschiebbar sind. Dadurch ist es möglich, eine flexible Anpassung des Befestigungselements 18 an die Größe der Umfangsfläche des zu fixierenden Stromleiters 10 zu realisieren, so dass der Stromleiter 10 mittels eines um die Umfangsfläche geführten gespannten Zustands des Befestigungselements 18 gehalten werden kann. Bezugszeichenliste Stromleiter 10 Stromwandlergehäuse 12 Durchgangsöffnung 14 Halteelement 16 Befestigungselement 18 Erste Durchgangsöffnung 20 Erster Endabschnitt 22 Zweiter Endabschnitt 24 Ausnehmung 26 Zweite Durchgangsöffnung 28 Rastmittel 30 Betätigungselement 32 Federarm 34 In Fig. 3 For example, the fastener 18 is shown in a position where the fastener 18 is fixed within the through holes 20, 28 and held in position by the actuator 32. By actuating the actuating element 32 in the direction of the current transformer housing 12, the fastening element 32 engages in the spring arms 34 and is held by them in this position, whereby the fastening element 18 is released by the actuating element 32 and thereby freely movable within the through holes 20, 28 is. Once the user lets go of the actuator 32, it is due to the spring arms 34 in his in Fig. 3 move back shown position so that the end portions 22, 24 of the fastener 18 are fixed again and no longer within the through holes 20, 28 are displaced. This makes it possible to realize a flexible adaptation of the fastening element 18 to the size of the peripheral surface of the current conductor 10 to be fixed, so that the current conductor 10 can be held by means of a tensioned state of the fastening element 18 guided around the peripheral surface. LIST OF REFERENCE NUMBERS conductor 10 Current transformer casing 12 Through opening 14 retaining element 16 fastener 18 First passage opening 20 First end section 22 Second end section 24 recess 26 Second passage opening 28 latching means 30 actuator 32 spring arm 34

Claims (5)

  1. A device, comprising a current transformer housing (12) and a fastening element (18), wherein
    the current transformer housing (12) is configured in such a way that a conductor (10) can be releasably fastened to the current transformer housing (12),
    the current transformer housing (12) has a retaining element (16) and the retaining element (16) is arranged on the current transformer housing (12),
    the fastening element (18) is guided through the retaining element (16),
    the fastening element (18) bears at least in part against the surface of the conductor (10) in a state in which the conductor (10) is fastened to the current transformer housing (12),
    the fastening element (18) in the fastened state is guided in a loop-like manner around the peripheral face of the conductor (10),
    the fastening element (18) has a first end portion (22) and a second end portion (24), which is opposite the first end portion (22), and
    the first end portion (22) can be guided through a first through-opening (20) provided on the retaining element (16),
    characterised in that
    the fastening element (18) can be fixed to the retaining element (16) in a secure position.
  2. The device according to claim 1, wherein
    the first end portion (22) has a recess (26), through which the second end portion (24) can be guided.
  3. The device according to claim 1, wherein
    the second end portion (24) can be guided through a second through-opening (28) provided on the retaining element (16).
  4. The device according to claim 3, wherein
    detent means (30) are formed on the first end portion (22) and/or on the second end portion (24).
  5. The device according to any one of claims 1 to 4, wherein
    an actuation element (32) for releasing the first end portion (22) from the first through-opening (20) and/or for releasing the second end portion (24) from the second through-opening (28) is provided on the retaining element (16).
EP10795351.5A 2009-12-17 2010-12-17 Device for removably fixing a conductor to a current transformer housing Active EP2513920B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009059006A DE102009059006A1 (en) 2009-12-17 2009-12-17 Device for releasably securing a conductor to a current transformer housing
PCT/EP2010/070088 WO2011073397A1 (en) 2009-12-17 2010-12-17 Device for removably fixing a conductor to a current transformer housing

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EP2513920A1 EP2513920A1 (en) 2012-10-24
EP2513920B1 true EP2513920B1 (en) 2018-01-31

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US (1) US9231317B2 (en)
EP (1) EP2513920B1 (en)
JP (1) JP2013514648A (en)
CN (1) CN102714088A (en)
BR (1) BR112012014589A2 (en)
CA (1) CA2783695C (en)
DE (2) DE202009018995U1 (en)
MX (1) MX2012006976A (en)
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MX2012006976A (en) 2012-11-22
JP2013514648A (en) 2013-04-25
EP2513920A1 (en) 2012-10-24
BR112012014589A2 (en) 2017-04-04
DE202009018995U1 (en) 2015-03-26
CA2783695C (en) 2015-01-27
DE102009059006A1 (en) 2011-08-18
US9231317B2 (en) 2016-01-05
RU2544899C1 (en) 2015-03-20
US20120326823A1 (en) 2012-12-27
CA2783695A1 (en) 2011-06-23
CN102714088A (en) 2012-10-03
WO2011073397A1 (en) 2011-06-23

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