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EP2208256B1 - Fixing device and switchgear or detection appliance comprising a fixing device - Google Patents

Fixing device and switchgear or detection appliance comprising a fixing device Download PDF

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Publication number
EP2208256B1
EP2208256B1 EP07846560A EP07846560A EP2208256B1 EP 2208256 B1 EP2208256 B1 EP 2208256B1 EP 07846560 A EP07846560 A EP 07846560A EP 07846560 A EP07846560 A EP 07846560A EP 2208256 B1 EP2208256 B1 EP 2208256B1
Authority
EP
European Patent Office
Prior art keywords
electrical conductor
fastening
insertion channel
opening
fastening 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.)
Not-in-force
Application number
EP07846560A
Other languages
German (de)
French (fr)
Other versions
EP2208256A1 (en
Inventor
Werner Puri
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to EP10007575A priority Critical patent/EP2264835B1/en
Priority to AT10007575T priority patent/ATE520171T1/en
Publication of EP2208256A1 publication Critical patent/EP2208256A1/en
Application granted granted Critical
Publication of EP2208256B1 publication Critical patent/EP2208256B1/en
Not-in-force 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
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks
    • H01R9/2416—Means for guiding or retaining wires or cables connected to terminal blocks
    • 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
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/34—Conductive members located under head of screw

Definitions

  • the present invention relates to a fastening device for fastening at least one electrical conductor to at least one fixed electrical contact, comprising at least one fastening element and at least one opening for introducing the at least one electrical conductor into the fastening device. Furthermore, the invention relates to a switching device or a detection device, with at least one fastening device for fastening at least one electrical conductor to at least one fixed electrical contact of the switching device or detection device, comprising at least one fastening element and at least one opening for introducing the at least one electrical conductor into the fastening device.
  • electrical conductors are connected to switching devices or detection devices, such as position switches.
  • ASI actuator sensor interface
  • the electrical conductors are usually fastened by means of screws, cage clamps, tension clamps or insulation displacement clamps.
  • FIG. 1 is an electrical conductor 2 perpendicular to the screw, ie the fastening screw 4, introduced into a fastening device 1.
  • the electrical conductor 2 is firmly seated in the fastening device 1.
  • the electrically conductive end of the electrical conductor 2 contacts the fixed electrical contact 3 of the fastening device 1
  • Fixing screw 4 a mounting plate 13 is provided for additional support for the attachment of the end of the electrical conductor 2.
  • Fig. 2 shows a similar attachment of the end of an electrical conductor 2.
  • the insertion 5 is located laterally in the housing of the fastening device 1.
  • the insertion 5 in Fig. 2 is in contrast to the insertion 5 in Fig. 1 arranged obliquely in the housing wall.
  • Fig. 3 shows a further fastening device 1 of an electrical conductor 2 to a fixed electrical contact 3 of the fastening device 1.
  • the insertion opening 5 for the electrical conductor 2 is on the same side as the opening 8 for passing the fastening screw 4 and for performing a tool for actuation the fastening screw 4 is provided.
  • the end of the electrical conductor 2 is bent during attachment.
  • the fixed electrical contact 3 is arranged obliquely in the fastening device 1 for better attachment of the end of the electrical conductor 2.
  • Such fastening devices have the following disadvantages.
  • the electrical conductor must be threaded through the insertion opening underneath the fastening disc. In this case, the end of the electrical conductor can bend or be damaged, so that the contacting of the fixed electrical contact is faulty.
  • the electrical conductor must be kept in the threaded position after threading to the screw.
  • both hands of the installer are necessary because the electrical conductor otherwise can easily slip out of the insertion. This means that the installer must hold the electrical conductor in the fastening device with one hand and actuate the fastening element with the other hand.
  • a lateral introduction or an oblique introduction of the electrical conductor requires the Further, a large volume of the fastening device and according to the switching device or the detection device in which the fastening device is arranged.
  • the electrical conductor according to the prior art can also be fixed by so-called cage-clamp connections or other clamping connections, thus creating an electrical connection to a fixed electrical contact within the fastening device.
  • cage-clamp connections or other clamping connections
  • WO 02/15336 A discloses an electrical appliance comprising a retaining element. Through an opening of the holding element, a conductor can be looped through the holding element, so that the conductor can be looped through an opening of another holding element again. The conductor can thus be looped through several holding elements of the electrical device. By displacing the respective movable holding element, an electrical contact is brought about with a cutting clamp of the electrical appliance associated with the holding element.
  • the object of the invention is to provide a fastening device and a switching device or a detection device, which do not have the aforementioned disadvantages of the prior art.
  • the insertion of the electrical conductor into the fastening device is to be simplified and the assembly effort is reduced.
  • the object is achieved by a fastening device for fastening at least one electrical conductor to at least one fixed electrical contact, comprising at least one fastening element and at least one opening for introducing the at least one electrical conductor into the fastening device, wherein between the at least one fastening element and the at least one opening at least one insertion channel for guiding the at least one electrical conductor to the at least one fastening element is provided, which is at least partially curved, wherein the at least one opening axially parallel to a second opening through which the at least one fastening element or a tool for the actuation of the fastening element in the fastening device is inserted, runs, solved.
  • Core of the invention is at least partially curved trained insertion channel.
  • an electrical conductor or the end of an electrical conductor can be guided precisely to the fastening element.
  • the end of the electrical conductor can not bend, but is also bent according to the bent portion of the insertion channel.
  • the electrical conductor adjusts to the specially trained insertion channel during insertion.
  • the diameter of the insertion channel is advantageously only slightly larger than the diameter of the electrical conductor or the end of the electrical conductor.
  • the at least one opening through which the electrical conductor is inserted into the fastening device may be arranged on the same side as the opening through which the fastening element, for example a fastening screw, or a tool for actuating the fastening element is introduced.
  • the construction volume of the fastening device be kept low when the electrical conductor is attached to the fixed electrical contact of the fastening device.
  • the insertion channel may have an area that is bent. It is also conceivable that the entire insertion channel is formed bent.
  • the insertion channel forms a hose-like guide for the electrical conductor.
  • a fastening device for fastening an electrical conductor to a fixed electrical contact, comprising a fastener and an opening for insertion of the electrical conductor in the fastening device, wherein between the fastening element and the opening an insertion channel for guiding the electrical conductor is provided to the fastener, which is at least partially curved, spoken.
  • the fastening device can have a plurality of fastening elements and a plurality of openings for introducing a plurality of electrical conductors into the fastening device. Between one of the fastening elements and a corresponding opening, an insertion channel for guiding one of the electrical conductors to a fastening element is then provided in each case, which is designed to be bent at least in regions.
  • the insertion channel has a frustoconical or funnel-shaped first region, which tapers from the opening in the direction of the interior of the fastening device.
  • the frusto-conical shaped first area facilitates insertion of the electrical conductor into the insertion channel. Due to the frusto-conical or funnel-shaped first region of the insertion channel, the end of the electrical conductor is guided in a targeted manner to the arcuate region of the insertion channel. As a result, a complicated threading of the end of the electrical conductor is avoided in the fastening device.
  • the broad side of the frusto-conical shaped area lies directly on the at least one opening through which the electrical conductor is inserted.
  • the truncated cone-shaped region can form approximately one-third or approximately half of the insertion channel.
  • the bent portion of the insertion channel begins directly at the frustoconical portion of the insertion channel.
  • a direct transition between these two areas takes place.
  • the first region is tapered towards the interior of the fastening device.
  • the overall volume of the fastening device can be reduced, compared to a fastening device in which the at least an opening for the passage of the electrical conductor on a side other than the second opening for passage of the fastening element, for example a fastening screw, or the tool is located.
  • a fastening device in which the fastening element is a fastening screw or a clamping element is particularly preferred.
  • the fastening element may be formed, for example, as a tension clamp.
  • the attachment of the electrical conductor or the end of the electrical conductor by a fastening screw provides a simple and inexpensive attachment.
  • the electrical conductor is guided after insertion through the insertion channel to the fastening screw. That is, the end of the electrical conductor is guided between the head of the fastening screw and the fixed electrical contact, so that the head of the fastening screw fixed after tightening the fastening screw, the end of the electrical conductor to the fixed electrical contact.
  • a mounting plate is inserted on the shank of the fastening screw, the electrical conductor, after tightening the fixing screw, fixed to the fixed contact.
  • the fastening element can also be designed as a cage-clamp connection or as another clamping connection. It is crucial how the end of the electrical conductor is guided by means of the at least partially bent portion of the insertion channel to the fastening element. The bent portion of the insertion channel allows exact positioning of the end of the electrical conductor.
  • a fastening device wherein the insertion channel to the channel center has protruding fixing elements, by which the electrical conductor or the sheath of the electrical conductor in the insertion channel can be fixed is.
  • the electrical conductor is sheathed to the end of the electrical conductor by a plastic sheath.
  • the unenclosed end of the electrical conductor is guided through the insertion opening, the frusto-conical first region of the insertion channel and the curved further region of the insertion channel to the fastening element.
  • the sheathed region of the electrical conductor is advantageously inserted into the further region of the insertion channel adjacent to the end of the frustoconical first region or up to the beginning of the further region of the insertion channel adjacent to the frustoconical first region.
  • the fixing elements of the insertion channel protruding toward the channel center are preferably provided in the region of the transition from the frustoconical first region and the further bent region of the introduction channel.
  • the fixing elements can be designed such that they support the insertion of the electrical conductor or not hinder that prevent withdrawal or slipping out of the electrical conductor, however, or at least complicate.
  • the fixing elements may be formed, for example, as barbs.
  • the fixing elements are tapered projections, which project in the direction of the fastener inclined in the insertion channel.
  • the fixing elements may also be formed by an annular projection.
  • the fixing elements can also protrude perpendicular to the central axis of the insertion channel from the inner circumferential surface of the insertion channel.
  • a fastening device in which the insertion channel is formed at least partially elastically and / or plastically deformable. By applying pressure to the insertion channel this can be deformed.
  • the deformation can be permanent.
  • a force can be exerted on a housing side of the fastening device, on which the insertion channel is located, by means of which the insertion channel can be elastically or plastically deformed at least partially.
  • the fixing elements for example in the form of pointed, needle-like projections, in the electrical conductor, in particular in the sheath of the electrical conductor, penetrate to fix this in the insertion channel. This type of fixation of the electrical conductor to the fastening device is particularly simple and quick to carry out.
  • this can be done by a single hand of a mechanic. That is, after the insertion of the electrical conductor through the insertion channel to the fastening element, the electrical conductor is fixed in the insertion channel, so that it can not slip out. Then, the fitter can use the same hand, for example, to tighten the fastening screw to then make the electrical contact between the end of the electrical conductor and the fixed electrical contact.
  • the assembly of the electrical conductor in the fastening device can be done quickly and easily by such a fastening device. In particular, a one-hand assembly can be performed, which is necessary due to the often lack of space and the sometimes difficult to access position of the fastening device.
  • the fixing elements are therefore preferably provided on the elastically and / or plastically deformable region of the insertion channel.
  • the curved region of the insertion channel can be designed differently. In particular, the degree of bending can vary.
  • the bent portion serves to deform when inserting the electrical conductor into the insertion channel, the end of the electrical conductor to guide this optimally to the fastener. As a result, a defined position of the electrical conductor is achieved within the fastening device.
  • the bent portion of the insertion channel allows the opening for insertion of the electrical conductor to be inclined to the opening of the insertion channel facing the fixing member.
  • a preferred embodiment of the fastening device provides that the insertion channel has a bent by 75-95 ° region.
  • a bent by 90 ° region of the insertion channel is particularly preferred. This allows the at least one opening for insertion of the electrical conductor by 90 ° inclined to the opening of the insertion channel, which faces the fastening element may be formed. This allows the volume of construction of the fastening device to be kept low because the electrical conductor does not have to be inserted from a side other than the fastening element into the interior of the fastening device.
  • the bent portion of the insertion channel of the fastening device preferably has a bent by 90 ° course, which emanates from the tapered end of the frusto-conical shaped first portion.
  • the end of the electrical conductor is guided by the frusto-conical first portion directly after introduction through the subsequent curved portion to the fastener.
  • the course of the electrical conductor is deflected by 90 °.
  • the end of the electrical conductor is perpendicular to the central axis of the screw-fastening screw. In this way, the electrical conductor can be optimally secured by the fastening screw to the fixed electrical contact of the fastening device.
  • the fixing elements of the fastening device preferably sit at the beginning of the bent portion of the insertion channel, wherein the beginning of the bent portion facing the tapered end of the frusto-conical shaped first portion of the insertion channel.
  • the fixing elements can be arranged on a rib-shaped projection on the inner circumferential surface of the insertion channel. Due to the position of the fixing elements, the inserted electrical conductor can be secured against slipping out directly at the beginning of the bent region. In this case, the fixing elements preferably engage in the sheathed region of the electrical conductor. The free end of the electrical conductor runs along the bent portion of the insertion channel to the fastening element.
  • the object is further achieved by a switching device or by a detection device, with a fastening device for fastening at least one electrical conductor to at least one fixed electrical contact of the switching device or the detection device, comprising at least one fastening element and at least one opening for insertion at least an electrical conductor in the fastening device, wherein the fastening device is formed according to the first aspect of the invention solved.
  • the fastening device can be arranged in a variety of switching devices or detection devices.
  • a switching device may be, for example, a circuit breaker, a semiconductor switching device, a relay, a contactor, a motor protection relay or switch, a circuit breaker or a circuit breaker.
  • the detection device may be, for example, an inductive or capacitive proximity switch, an optoelectronic sensor, an ultrasonic sensor or a pressure sensor.
  • the detection device is a position switch.
  • the position switches can also have AS-Interface.
  • Switchgear or detection devices with such a fastening device described above can be very easily and quickly connected to an electrical conductor or an electrical conductor can be very easily and quickly connected to a switching device or a detection device with such a fastening device described above.
  • the electrical conductor due to the fixing of the insertion of the fastening device can be fixed with one hand on the switching device or the detection device and an electrically conductive connection to the fixed electrical contact of the fastening device can be made.
  • the electrical conductor can additionally be held by a cover element on the switching device or the detection device.
  • Fig. 1-3 show fastening devices according to the prior art. These figures have been described in the introduction to the description.
  • FIG. 4 is a schematic side view of an embodiment of the fastening device 1 is shown.
  • an insertion channel 6 for guiding the electrical conductor 2 to the fastening element 4 is arranged.
  • the insertion channel 6 has a first frusto-conical region 7. This frustoconical shaped first region 7 runs from the opening 5 in Direction of the interior of the fastening device 1 pointed.
  • the frustoconical shaped first region 7 facilitates the insertion of the electrical conductor 2 in the insertion channel 6.
  • the end of the electrical conductor 2 is guided to the arcuate portion 12 of the insertion channel 6.
  • a complicated threading of the end of the electrical conductor 2 in the fastening device 1 is thereby avoided.
  • the broad side of the truncated cone-shaped region 7 is located directly at the opening 5, through which the electrical conductor 5 can be inserted.
  • the bent portion 12 of the insertion channel 6 follows directly the frusto-conical portion 7 of the insertion channel 6. It takes place in this embodiment of the fastening device 1, a direct transition between these two areas.
  • an electrical conductor 2 or the end of an electrical conductor 2 can be guided precisely to the fastening element 4 in order to be clamped by the latter to the fixed electrical contact 3 of the fastening device 1.
  • the end of the electrical conductor can not bend incorrectly, but is bent according to the bent portion 12 of the insertion channel 6.
  • the electrical conductor 2 adapts to the specially designed insertion channel 6 during insertion.
  • the diameter of the insertion channel 6 is advantageously only slightly larger than the diameter of the electrical conductor 2 and the end of the electrical conductor 2.
  • the insertion channel 6 forms a tubular guide for the electrical conductor. 2
  • the opening 5, through which the electrical conductor is inserted into the fastening device, is arranged on the same side of the housing of the fastening device 1, as the second opening 8, through which the fastening element 4, here a fastening screw, can be inserted.
  • the fastening element 4 here a fastening screw
  • the fastening device 1 for fastening an electrical conductor 2 to a fixed electrical contact 3 two or more fasteners 4 and corresponding openings 5 for the introduction of several electrical conductors 2 in the fastening device 1, wherein between the fastening elements 4 and The openings 5 are each provided with an insertion channel 6 for guiding one of the electrical conductors 2 to the respective fastening elements 4, which is formed curved at least in certain areas.
  • the end of the electrical conductor 2 is deformed by the insertion channel 6 such that it extends perpendicular to the central axis of the shank of the fastening screw 4.
  • the fastening screw 4 or the mounting plate 13 plugged onto the fastening screw 4 can fix the end of the electrical conductor 2 optimally to the fixed electrical contact 3 of the fastening device 1.
  • the curved portion 12 of the insertion channel 6, here the course of the insertion channel 6 is bent by 90 °, allows for a compact design of the fastening device 1 and on the other hand, the optimal guidance of the end of the electrical conductor 2 to the fastener. 4
  • FIG. 5 is a plan view of the fastening device 1 according to Fig. 4 shown.
  • the opening 5 for the passage of the electrical conductor 2 is axially parallel to the second opening 8, which serves for the introduction of the fastening element 4 or a tool for actuating the fastening element 4, respectively.
  • For openings 5, 8 are thus accessible from one side, so that the overall volume of the fastening device 1 can be kept low when the electrical conductor 2 is attached to the fastening device 1.
  • Fig. 6 is the same fastening device 1, as Fig. 4 shown. The only difference is that the fastening device 1 is covered by a cover element 11 of a switching device or a detection device, so that the electrical conductor 2 or the sheathed region 10 of the electrical conductor 2 outside the fastening device 1 is bent off.
  • Fig. 7 is the in Fig. 6 Area marked A is shown enlarged.
  • the electrical conductor 2 has been inserted through the frusto-conical first portion 7 of the insertion channel 6 in this.
  • the unjacketed end of the electrical conductor 2 follows the bent portion 12 of the insertion channel 6.
  • the bent portion 12 of the insertion channel 6 is seated directly at the tapered end of the truncated conical first portion 7.
  • fixing elements 9 are provided in the transition region from the truncated conical first portion 7 and the bent portion 12 of the insertion channel 6 . These fixing elements 9 serve to hold the once introduced electrical conductor 2 in the insertion channel 6 and in the fastening device 1.
  • the fixing elements 9 barb-shaped direction of the central axis of the insertion channel 6 protrude.
  • the fixing elements 9 are arranged such that they only prevent slipping out of the electrical conductor 2 from the insertion channel 6.
  • the insertion channel 6 is at least partially formed elastically and / or plastically deformable.
  • the fixing elements 9 projecting toward the center axis of the insertion channel 6, which are preferably formed in the form of pointed needle-shaped projections, can be pressed into the electrical conductor so that it is fixed in the insertion channel 6. In this case, the fixing elements 9 are pressed in particular into the sheathing 10 of the electrical conductor 2.
  • the fixation of the electrical conductor 2 in the insertion channel 6 remains permanent. Is the insertion channel at least partially elastically formed, the fixation can solve by itself again after a while. However, the fixation continues until the end of the electrical conductor 2 is fixed by the fastening element 4 to the fixed electrical contact 3 of the fastening device 1. Since the attachment of the end of the electrical conductor 2 is usually carried out immediately after the passage of the electrical conductor 2 through the insertion channel 6, a short-term fixation of the electrical conductor 2 by means of the fixing elements 9 is sufficient.
  • a preferred embodiment of the fastening device 1 provides that the insertion channel 6 has an area bent by 75-95 °.
  • a 90 ° bent portion 12 of the insertion channel 6 is particularly preferred, as in Fig. 4 and 7 shown.
  • the opening 5 for insertion of the electrical conductor inclined by 90 ° to the opening 14 of the insertion channel 6, which faces the fastening element 4 may be formed. This allows the volume of the fixture 1 to be kept low because the electrical conductor 2 on the same side as the fixture 4 or tool for actuating the fixture 4 must be inserted into the interior of the fixture 1.

Landscapes

  • Clamps And Clips (AREA)
  • Breakers (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)

Abstract

The device (1) has an opening (5) for inserting an electrical conductor (2) into the device. An insertion channel (6) is provided between a fastening element (4) i.e. fastening screw, and the opening, where the insertion channel guides the electrical conductor to the fastening element. The insertion channel is formed in a curved manner sectionally. The opening runs axially parallel to another opening (8), where the fastening element is insertable into the device through the opening (8). The insertion channel is formed in an elastically and plastically deformable manner. An independent claim is also included for a switchgear or detection device comprising a cover element.

Description

Die vorliegende Erfindung betrifft eine Befestigungsvorrichtung zur Befestigung wenigstens eines elektrischen Leiters an wenigstens einem fixen elektrischen Kontakt, aufweisend wenigstens ein Befestigungselement und wenigstens eine Öffnung zur Einführung des wenigstens einen elektrischen Leiters in die Befestigungsvorrichtung. Ferner betrifft die Erfindung ein Schaltgerät oder ein Erfassungsgerät, mit wenigstens einer Befestigungsvorrichtung zur Befestigung wenigstens eines elektrischen Leiters an wenigstens einem fixen elektrischen Kontakt des Schaltgerätes oder Erfassungsgerätes, aufweisend wenigstens ein Befestigungselement und wenigstens eine Öffnung zur Einführung des wenigstens einen elektrischen Leiters in die Befestigungsvorrichtung.The present invention relates to a fastening device for fastening at least one electrical conductor to at least one fixed electrical contact, comprising at least one fastening element and at least one opening for introducing the at least one electrical conductor into the fastening device. Furthermore, the invention relates to a switching device or a detection device, with at least one fastening device for fastening at least one electrical conductor to at least one fixed electrical contact of the switching device or detection device, comprising at least one fastening element and at least one opening for introducing the at least one electrical conductor into the fastening device.

Zur Erfüllung ihrer Funktionen werden an Schaltgeräten oder Erfassungsgeräten, wie beispielsweise Positionsschaltern, elektrische Leiter angeschlossen. Die elektrischen Leiter werden dabei direkt oder indirekt, beispielsweise als AS-Interface (ASI = Aktor-Sensor-Interface) oder als Steckverbinder, an das Schaltgerät oder das Erfassungsgerät angeschlossen. Die Befestigung der elektrischen Leiter erfolgt üblicherweise durch Schrauben, Cage-Clamps, Zugklemmen oder Schneidklemmen.To fulfill their functions, electrical conductors are connected to switching devices or detection devices, such as position switches. The electrical conductors are connected directly or indirectly, for example as an AS interface (ASI = actuator sensor interface) or as a connector to the switching device or the detection device. The electrical conductors are usually fastened by means of screws, cage clamps, tension clamps or insulation displacement clamps.

In den Fig. 1 bis 3 sind drei aus dem Stand der Technik bekannte Schraubverbindungen dargestellt. In Fig. 1 ist ein elektrischer Leiter 2 senkrecht zu der Schraubverbindung, d.h. der Befestigungsschraube 4, in eine Befestigungsvorrichtung 1 eingebracht. Nach dem Einschrauben der Befestigungsschraube 4 sitzt der elektrische Leiter 2 fest in der Befestigungsvorrichtung 1. Das elektrisch leitende Ende des elektrischen Leiters 2 kontaktiert dabei den fixen elektrischen Kontakt 3 der Befestigungsvorrichtung 1. Auf den Schaft der Befestigungsschraube 4 ist eine Befestigungsscheibe 13 zur zusätzlichen Unterstützung für die Befestigung des Endes des elektrischen Leiters 2 vorgesehen. Fig. 2 zeigt eine ähnliche Befestigung des Endes eines elektrischen Leiters 2. Auch hier liegt die Einführöffnung 5 seitlich im Gehäuse der Befestigungsvorrichtung 1. Die Einführöffnung 5 in Fig. 2 ist im Gegensatz zu der Einführöffnung 5 in Fig. 1 schräg in der Gehäusewandung angeordnet. Durch Anziehen der Befestigungsschraube 4 wird das Ende des elektrischen Leiters 2 von der Befestigungsscheibe 13 an den fixen elektrischen Kontakt 3 gedrückt und dort fixiert.In the Fig. 1 to 3 three known from the prior art screw connections are shown. In Fig. 1 is an electrical conductor 2 perpendicular to the screw, ie the fastening screw 4, introduced into a fastening device 1. After screwing in the fastening screw 4, the electrical conductor 2 is firmly seated in the fastening device 1. The electrically conductive end of the electrical conductor 2 contacts the fixed electrical contact 3 of the fastening device 1 Fixing screw 4, a mounting plate 13 is provided for additional support for the attachment of the end of the electrical conductor 2. Fig. 2 shows a similar attachment of the end of an electrical conductor 2. Again, the insertion 5 is located laterally in the housing of the fastening device 1. The insertion 5 in Fig. 2 is in contrast to the insertion 5 in Fig. 1 arranged obliquely in the housing wall. By tightening the fastening screw 4, the end of the electrical conductor 2 is pressed by the mounting plate 13 to the fixed electrical contact 3 and fixed there.

Fig. 3 zeigt eine weitere Befestigungsvorrichtung 1 eines elektrischen Leiters 2 an einen fixen elektrischen Kontakt 3 der Befestigungsvorrichtung 1. Die Einführöffnung 5 für den elektrischen Leiter 2 ist an der gleichen Seite, wie die Öffnung 8 zur Durchführung der Befestigungsschraube 4 bzw. zur Durchführung eines Werkzeuges zur Betätigung der Befestigungsschraube 4 vorgesehen. Das Ende des elektrischen Leiters 2 wird bei der Befestigung abgeknickt. Der fixe elektrische Kontakt 3 ist zur besseren Befestigung des Endes des elektrischen Leiters 2 schräg in der Befestigungsvorrichtung 1 angeordnet. Fig. 3 shows a further fastening device 1 of an electrical conductor 2 to a fixed electrical contact 3 of the fastening device 1. The insertion opening 5 for the electrical conductor 2 is on the same side as the opening 8 for passing the fastening screw 4 and for performing a tool for actuation the fastening screw 4 is provided. The end of the electrical conductor 2 is bent during attachment. The fixed electrical contact 3 is arranged obliquely in the fastening device 1 for better attachment of the end of the electrical conductor 2.

Derartige Befestigungsvorrichtungen weisen folgende Nachteile auf. Zum einen muss der elektrische Leiter durch die Einführöffnung unter die Befestigungsscheibe eingefädelt werden. Hierbei kann das Ende des elektrischen Leiters abknicken oder beschädigt werden, so dass die Kontaktierung des fixen elektrischen Kontaktes fehlerhaft ist. Ferner muss der elektrische Leiter nach dem Einfädeln bis zur Verschraubung in der eingefädelten Position gehalten werden. Hierzu sind beide Hände des Monteurs notwendig, da der elektrische Leiter sonst leicht aus der Einführöffnung herausrutschen kann. D.h., der Monteur muss mit einer Hand den elektrischen Leiter in der Befestigungsvorrichtung halten und mit der anderen Hand das Befestigungselement betätigen. Eine seitliche Einführung bzw. eine schräge Einführung des elektrischen Leiters bedingt des Weiteren ein großes Bauvolumen der Befestigungsvorrichtung und entsprechend des Schaltgerätes oder des Erfassungsgerätes, in dem die Befestigungsvorrichtung angeordnet ist.Such fastening devices have the following disadvantages. On the one hand, the electrical conductor must be threaded through the insertion opening underneath the fastening disc. In this case, the end of the electrical conductor can bend or be damaged, so that the contacting of the fixed electrical contact is faulty. Furthermore, the electrical conductor must be kept in the threaded position after threading to the screw. For this purpose, both hands of the installer are necessary because the electrical conductor otherwise can easily slip out of the insertion. This means that the installer must hold the electrical conductor in the fastening device with one hand and actuate the fastening element with the other hand. A lateral introduction or an oblique introduction of the electrical conductor requires the Further, a large volume of the fastening device and according to the switching device or the detection device in which the fastening device is arranged.

Anstatt durch Befestigungsschrauben kann der elektrische Leiter gemäß des Standes der Technik auch durch sogenannte Cage-Clamp-Verbindungen oder andere Klemmverbindungen befestigt werden und so eine elektrische Verbindung zu einem fixen elektrischen Kontakt innerhalb der Befestigungsvorrichtung geschaffen werden. So sind aus dem Stand der Technik u.a. Printklemmen, Zugklemmen und Stecker mit Federkraftdoppelanschlüssen bekannt.Instead of fastening screws, the electrical conductor according to the prior art can also be fixed by so-called cage-clamp connections or other clamping connections, thus creating an electrical connection to a fixed electrical contact within the fastening device. Thus, from the prior art u.a. PCB terminal blocks, tension clamps and plugs with spring-cage double connections are known.

WO 02/15336 A offenbart ein elektrisches Gerät, welches ein Halteelement umfasst. Durch eine Öffnung des Halteelements kann ein Leiter durch das Halteelement durchgeschleift werden, so dass der Leiter durch eine Öffnung eines weiteren Halteelements wiederum durchgeschleift werden kann. Der Leiter kann somit durch mehrere Halteelemente des elektrischen Geräts durchgeschleift werden. Durch ein Verschieben des jeweiligen beweglichen Halteelements wird ein elektrischer Kontakt mit einer dem Halteelement zugehörigen Schneidklemme des elektrischen Geräts herbeigeführt. WO 02/15336 A discloses an electrical appliance comprising a retaining element. Through an opening of the holding element, a conductor can be looped through the holding element, so that the conductor can be looped through an opening of another holding element again. The conductor can thus be looped through several holding elements of the electrical device. By displacing the respective movable holding element, an electrical contact is brought about with a cutting clamp of the electrical appliance associated with the holding element.

Die Aufgabe der Erfindung besteht darin, eine Befestigungsvorrichtung und ein Schaltgerät oder ein Erfassungsgerät zu schaffen, die die zuvor genannten Nachteile des Standes der Technik nicht aufweisen. Insbesondere soll das Einführen des elektrischen Leiters in die Befestigungsvorrichtung vereinfacht werden und der Montageaufwand verringert werden.The object of the invention is to provide a fastening device and a switching device or a detection device, which do not have the aforementioned disadvantages of the prior art. In particular, the insertion of the electrical conductor into the fastening device is to be simplified and the assembly effort is reduced.

Diese Aufgabe wird erfindungsgemäß durch eine Befestigungsvorrichtung mit den Merkmalen gemäß dem unabhängigen Patentanspruch 1 sowie durch ein Schaltgerät oder ein Erfassungsgerät mit den Merkmalen gemäß dem unabhängigen Patentanspruch 9 gelöst. Weitere Merkmale und Details der Erfindung ergeben sich aus den Unteransprüchen, der Beschreibung sowie den Zeichnungen. Merkmale und Details die im Zusammenhang mit der Befestigungsvorrichtung beschrieben sind gelten dabei selbstverständlich auch im Zusammenhang mit dem Schaltgerät oder dem Erfassungsgerät, und jeweils umgekehrt.This object is achieved by a fastening device with the features according to independent claim 1 and by a switching device or a detection device with the features according to independent claim 9. Further features and details of the invention will become apparent from the dependent claims, the description and the drawings. Features and details associated with the Fixing device are described are of course also in connection with the switching device or the detection device, and in each case vice versa.

Gemäß dem ersten Aspekt der Erfindung wird die Aufgabe durch eine Befestigungsvorrichtung zur Befestigung wenigstens eines elektrischen Leiters an wenigstens einem fixen elektrischen Kontakt, aufweisend wenigstens ein Befestigungselement und wenigstens eine Öffnung zur Einführung des wenigstens einen elektrischen Leiters in die Befestigungsvorrichtung, wobei zwischen dem wenigstens einen Befestigungselement und der wenigstens einen Öffnung wenigstens ein Einführkanal zur Führung des wenigstens einen elektrischen Leiters zu dem wenigstens einen Befestigungselement vorgesehen ist, der zumindest bereichsweise gebogen ausgebildet ist, wobei die wenigstens eine Öffnung achsparallel zu einer zweiten Öffnung, durch die das wenigstens eine Befestigungselement oder ein Werkzeug zur Betätigung des Befestigungselementes in die Befestigungsvorrichtung einführbar ist, verläuft, gelöst.According to the first aspect of the invention, the object is achieved by a fastening device for fastening at least one electrical conductor to at least one fixed electrical contact, comprising at least one fastening element and at least one opening for introducing the at least one electrical conductor into the fastening device, wherein between the at least one fastening element and the at least one opening at least one insertion channel for guiding the at least one electrical conductor to the at least one fastening element is provided, which is at least partially curved, wherein the at least one opening axially parallel to a second opening through which the at least one fastening element or a tool for the actuation of the fastening element in the fastening device is inserted, runs, solved.

Kern der Erfindung ist der zumindest bereichsweise gebogen ausgebildete Einführkanal. Durch einen derart ausgebildeten Einführkanal kann ein elektrischer Leiter bzw. das Ende eines elektrischen Leiters zielgenau zu dem Befestigungselement geführt werden. Das Ende des elektrischen Leiters kann nicht abknicken, sondern wird entsprechend dem gebogenen Bereich des Einführkanals ebenfalls gebogen. Der elektrische Leiter passt sich beim Einführen dem speziell ausgebildeten Einführkanal an. Der Durchmesser des Einführkanals ist vorteilhafterweise nur geringfügig größer, als der Durchmesser des elektrischen Leiters bzw. des Endes des elektrischen Leiters. Durch den zumindest bereichsweise gebogenen Einführkanal kann die wenigstens eine Öffnung, durch die der elektrische Leiter in die Befestigungsvorrichtung eingeführt wird, an der gleichen Seite angeordnet sein, wie die Öffnung, durch die das Befestigungselement, beispielsweise eine Befestigungsschraube, oder ein Werkzeug zur Betätigung des Befestigungselement eingeführt wird. Hierdurch kann das Bauvolumen der Befestigungsvorrichtung gering gehalten werden, wenn der elektrische Leiter an dem fixen elektrischen Kontakt der Befestigungsvorrichtung befestigt ist. Der Einführkanal kann einen Bereich aufweisen, der gebogen ausgebildet ist. Es ist auch denkbar, dass der gesamte Einführkanal gebogen ausgeformt ist. Der Einführkanal bildet eine schlauchartige Führung für den elektrischen Leiter.Core of the invention is at least partially curved trained insertion channel. Through an insertion channel formed in this way, an electrical conductor or the end of an electrical conductor can be guided precisely to the fastening element. The end of the electrical conductor can not bend, but is also bent according to the bent portion of the insertion channel. The electrical conductor adjusts to the specially trained insertion channel during insertion. The diameter of the insertion channel is advantageously only slightly larger than the diameter of the electrical conductor or the end of the electrical conductor. Due to the at least partially curved insertion channel, the at least one opening through which the electrical conductor is inserted into the fastening device may be arranged on the same side as the opening through which the fastening element, for example a fastening screw, or a tool for actuating the fastening element is introduced. As a result, the construction volume of the fastening device be kept low when the electrical conductor is attached to the fixed electrical contact of the fastening device. The insertion channel may have an area that is bent. It is also conceivable that the entire insertion channel is formed bent. The insertion channel forms a hose-like guide for the electrical conductor.

Im weiteren Verlauf der Beschreibung wird meist von einer Befestigungsvorrichtung zur Befestigung eines elektrischen Leiters an einem fixen elektrischen Kontakt, aufweisend ein Befestigungselement und eine Öffnung zur Einführung des elektrischen Leiters in die Befestigungsvorrichtung, wobei zwischen dem Befestigungselement und der Öffnung ein Einführkanal zur Führung des elektrischen Leiters zu dem Befestigungselement vorgesehen ist, der zumindest bereichsweise gebogen ausgebildet ist, gesprochen. Es ist selbstverständlich, dass die Befestigungsvorrichtung mehrere Befestigungselemente und mehrere Öffnungen zur Einführung mehrerer elektrischer Leiter in die Befestigungsvorrichtung aufweisen kann. Zwischen einem der Befestigungselemente und einer entsprechenden Öffnung ist dann jeweils ein Einführkanal zur Führung eines der elektrischen Leiter zu einem Befestigungselement vorgesehen ist, der zumindest bereichsweise gebogen ausgebildet ist.In the further course of the description is usually of a fastening device for fastening an electrical conductor to a fixed electrical contact, comprising a fastener and an opening for insertion of the electrical conductor in the fastening device, wherein between the fastening element and the opening an insertion channel for guiding the electrical conductor is provided to the fastener, which is at least partially curved, spoken. It goes without saying that the fastening device can have a plurality of fastening elements and a plurality of openings for introducing a plurality of electrical conductors into the fastening device. Between one of the fastening elements and a corresponding opening, an insertion channel for guiding one of the electrical conductors to a fastening element is then provided in each case, which is designed to be bent at least in regions.

Bevorzugt ist eine Befestigungsvorrichtung, bei der der Einführkanal einen kegelstumpfförmigen bzw. trichterförmig ausgebildeten ersten Bereich aufweist, der ausgehend von der Öffnung in Richtung des Inneren der Befestigungsvorrichtung spitz zuläuft. Der kegelstumpfförmig ausgebildete erste Bereich erleichtert das Einführen des elektrischen Leiters in den Einführkanal. Durch den kegelstumpfförmigen bzw. trichterförmigen ersten Bereich des Einführkanals wird das Ende des elektrischen Leiters gezielt zu dem bogenförmig ausgebildeten Bereich des Einführkanals geführt. Hierdurch wird ein kompliziertes Einfädeln des Endes des elektrischen Leiters in die Befestigungsvorrichtung vermieden. Die breite Seite des kegelstumpfförmig ausgebildeten Bereiches liegt direkt an der wenigstens einen Öffnung, durch die der elektrische Leiter eingeführt wird. Der kegelstumpfförmig ausgebildete Bereich kann dabei ungefähr ein Drittel oder ungefähr die Hälfte des Einführkanals bilden. Vorteilhafterweise beginnt der gebogene Bereich des Einführkanals direkt an dem kegelstumpfförmig ausgebildeten Bereich des Einführkanals. Hier findet vorteilhafterweise ein direkter Übergang zwischen diesen beiden Bereichen statt. Der erste Bereich verläuft verjüngend in Richtung des Inneren der Befestigungsvorrichtung.Preference is given to a fastening device in which the insertion channel has a frustoconical or funnel-shaped first region, which tapers from the opening in the direction of the interior of the fastening device. The frusto-conical shaped first area facilitates insertion of the electrical conductor into the insertion channel. Due to the frusto-conical or funnel-shaped first region of the insertion channel, the end of the electrical conductor is guided in a targeted manner to the arcuate region of the insertion channel. As a result, a complicated threading of the end of the electrical conductor is avoided in the fastening device. The broad side of the frusto-conical shaped area lies directly on the at least one opening through which the electrical conductor is inserted. The truncated cone-shaped region can form approximately one-third or approximately half of the insertion channel. Advantageously, the bent portion of the insertion channel begins directly at the frustoconical portion of the insertion channel. Here, advantageously, a direct transition between these two areas takes place. The first region is tapered towards the interior of the fastening device.

Dadurch, dass die wenigstens eine Öffnung achsparallel zu einer zweiten Öffnung, durch die das Befestigungselement oder ein Werkzeug zur Betätigung des Befestigungselementes in die Befestigungsvorrichtung einführbar ist, verläuft, kann das Bauvolumen der Befestigungsvorrichtung reduziert werden, im Vergleich zu einer Befestigungsvorrichtung, bei der die wenigstens eine Öffnung zur Durchführung des elektrischen Leiters an einer anderen Seite, als die zweite Öffnung zur Hindurchführung des Befestigungselementes, beispielsweise einer Befestigungsschraube, oder des Werkzeuges liegt.Characterized in that the at least one opening axially parallel to a second opening through which the fastening element or a tool for actuating the fastening element is inserted into the fastening device, extends, the overall volume of the fastening device can be reduced, compared to a fastening device in which the at least an opening for the passage of the electrical conductor on a side other than the second opening for passage of the fastening element, for example a fastening screw, or the tool is located.

Eine Befestigungsvorrichtung, bei der das Befestigungselement eine Befestigungsschraube oder ein Klemmelement ist, ist besonders bevorzugt. Das Befestigungselement kann beispielsweise als Zugklemme ausgebildet sein.A fastening device in which the fastening element is a fastening screw or a clamping element is particularly preferred. The fastening element may be formed, for example, as a tension clamp.

Insbesondere die Befestigung des elektrischen Leiters bzw. des Endes des elektrischen Leiters durch eine Befestigungsschraube stellt eine einfache und kostengünstige Befestigung dar. Der elektrische Leiter wird nach dem Einführen durch den Einführkanal zu der Befestigungsschraube geführt. D.h., das Ende des elektrischen Leiters wird zwischen den Kopf der Befestigungsschraube und den fixen elektrischen Kontakt geführt, so dass der Kopf der Befestigungsschraube nach dem Anziehen der Befestigungsschraube das Ende des elektrischen Leiters fest an dem fixen elektrischen Kontakt fixiert. Bevorzugt ist auf dem Schaft der Befestigungsschraube eine Befestigungsscheibe gesteckt, die den elektrischen Leiter, nach dem Anziehen der Befestigungsschraube, an dem fixen Kontakt befestigt. Das Befestigungselement kann auch als Cage-Clamp-Verbindung oder als andere Klemmverbindung ausgebildet sein. Entscheidend ist, wie das Ende des elektrischen Leiters mittels des zumindest teilweise gebogenen Bereiches des Einführkanals zu dem Befestigungselement geführt wird. Der gebogene Bereich des Einführkanals erlaubt eine exakte Positionierung des Endes des elektrischen Leiters.In particular, the attachment of the electrical conductor or the end of the electrical conductor by a fastening screw provides a simple and inexpensive attachment. The electrical conductor is guided after insertion through the insertion channel to the fastening screw. That is, the end of the electrical conductor is guided between the head of the fastening screw and the fixed electrical contact, so that the head of the fastening screw fixed after tightening the fastening screw, the end of the electrical conductor to the fixed electrical contact. Preferably, a mounting plate is inserted on the shank of the fastening screw, the electrical conductor, after tightening the fixing screw, fixed to the fixed contact. The fastening element can also be designed as a cage-clamp connection or as another clamping connection. It is crucial how the end of the electrical conductor is guided by means of the at least partially bent portion of the insertion channel to the fastening element. The bent portion of the insertion channel allows exact positioning of the end of the electrical conductor.

Besonders bevorzugt ist eine Befestigungsvorrichtung, bei der der Einführkanal zur Kanalmitte hervorstehende Fixierelemente aufweist, durch die der elektrische Leiter oder die Ummantelung des elektrischen Leiters in dem Einführkanal fixierbar ist. Der elektrische Leiter ist bis auf das Ende des elektrischen Leiters durch eine Kunststoffhülle ummantelt. Das nichtummantelte Ende des elektrischen Leiters wird durch die Einführöffnung, den kegelstumpfförmig ausgebildeten ersten Bereich des Einführkanals und den gebogenen weiteren Bereich des Einführkanals zu dem Befestigungselement geführt. Der ummantelte Bereich des elektrischen Leiters wird vorteilhafterweise nur bis zu dem Ende des kegelstumpfförmig ausgebildeten ersten Bereichs bzw. bis zu dem Beginn des an den kegelstumpfförmig ausgebildeten ersten Bereiches angrenzenden weiteren Bereiches des Einführkanals in diesen eingeführt. Die zur Kanalmitte hervorstehenden Fixierelemente des Einführkanals sind bevorzugt in dem Bereich des Übergangs von dem kegelstumpfförmig ausgebildeten ersten Bereich und dem weiteren gebogenen Bereich des Einführkanals vorgesehen. Die Fixierelemente können dabei derart ausgebildet sein, dass sie das Einführen des elektrischen Leiters unterstützen bzw. nicht hindern, dass Herausziehen oder Herausrutschen des elektrischen Leiters jedoch verhindern oder zumindest erschweren. Die Fixierelemente können beispielsweise als Widerhaken ausgebildet sein. Hierzu sind die Fixierelemente spitz zulaufende Vorsprünge, die in Richtung des Befestigungselementes geneigt in den Einführkanal hineinragen. Die Fixierelemente können auch durch einen ringförmigen Vorsprung gebildet sein. Die Fixierelemente können aber auch senkrecht zur Mittelachse des Einführkanals aus der Innenmantelfläche des Einführkanals hervorstehen.Particularly preferred is a fastening device, wherein the insertion channel to the channel center has protruding fixing elements, by which the electrical conductor or the sheath of the electrical conductor in the insertion channel can be fixed is. The electrical conductor is sheathed to the end of the electrical conductor by a plastic sheath. The unenclosed end of the electrical conductor is guided through the insertion opening, the frusto-conical first region of the insertion channel and the curved further region of the insertion channel to the fastening element. The sheathed region of the electrical conductor is advantageously inserted into the further region of the insertion channel adjacent to the end of the frustoconical first region or up to the beginning of the further region of the insertion channel adjacent to the frustoconical first region. The fixing elements of the insertion channel protruding toward the channel center are preferably provided in the region of the transition from the frustoconical first region and the further bent region of the introduction channel. The fixing elements can be designed such that they support the insertion of the electrical conductor or not hinder that prevent withdrawal or slipping out of the electrical conductor, however, or at least complicate. The fixing elements may be formed, for example, as barbs. For this purpose, the fixing elements are tapered projections, which project in the direction of the fastener inclined in the insertion channel. The fixing elements may also be formed by an annular projection. However, the fixing elements can also protrude perpendicular to the central axis of the insertion channel from the inner circumferential surface of the insertion channel.

Bevorzugt ist eine Befestigungsvorrichtung, bei der der Einführkanal zumindest bereichsweise elastisch und/oder plastisch verformbar ausgebildet ist. Durch eine Druckausübung auf den Einführkanal kann dieser verformt werden. Dabei kann die Verformung dauerhaft sein. So kann auf eine Gehäuseseite der Befestigungsvorrichtung, an der der Einführkanal liegt, eine Kraft ausgeübt werden, durch die der Einführkanal zumindest bereichsweise elastisch oder plastisch verformt werden kann. Durch die Verformung können die Fixierelemente, beispielsweise in Form von spitzen, nadelartigen Vorsprüngen, in den elektrischen Leiter, insbesondere in die Ummantelung des elektrischen Leiters, eindringen, um diesen in dem Einführkanal zu fixieren. Diese Art der Fixierung des elektrischen Leiters an der Befestigungsvorrichtung ist besonders einfach und schnell durchführbar. Insbesondere kann dies durch nur eine Hand eines Monteurs erfolgen. D.h., nach dem Einführen des elektrischen Leiters durch den Einführkanal zu dem Befestigungselement, wird der elektrischen Leiter in dem Einführkanal fixiert, so dass er nicht mehr herausrutschen kann. Dann kann der Monteur die gleiche Hand benutzen, um beispielsweise die Befestigungsschraube anzuziehen, um dann die elektrische Kontaktierung zwischen dem Ende des elektrischen Leiters und dem fixen elektrischen Kontakt herzustellen. Die Montage des elektrischen Leiters in der Befestigungsvorrichtung kann durch eine derartige Befestigungsvorrichtung schnell und einfach erfolgen. Insbesondere kann eine Einhandmontage durchgeführt werden, was aufgrund des oft wenig vorhandenen Bauraumes und der manchmal schwer zugänglichen Lage der Befestigungsvorrichtung notwendig ist. Die Fixierelemente sind daher bevorzugt an dem elastisch und/oder plastisch verformbaren Bereich des Einführkanals vorgesehen.Preferred is a fastening device in which the insertion channel is formed at least partially elastically and / or plastically deformable. By applying pressure to the insertion channel this can be deformed. The deformation can be permanent. Thus, a force can be exerted on a housing side of the fastening device, on which the insertion channel is located, by means of which the insertion channel can be elastically or plastically deformed at least partially. Due to the deformation, the fixing elements, for example in the form of pointed, needle-like projections, in the electrical conductor, in particular in the sheath of the electrical conductor, penetrate to fix this in the insertion channel. This type of fixation of the electrical conductor to the fastening device is particularly simple and quick to carry out. In particular, this can be done by a single hand of a mechanic. That is, after the insertion of the electrical conductor through the insertion channel to the fastening element, the electrical conductor is fixed in the insertion channel, so that it can not slip out. Then, the fitter can use the same hand, for example, to tighten the fastening screw to then make the electrical contact between the end of the electrical conductor and the fixed electrical contact. The assembly of the electrical conductor in the fastening device can be done quickly and easily by such a fastening device. In particular, a one-hand assembly can be performed, which is necessary due to the often lack of space and the sometimes difficult to access position of the fastening device. The fixing elements are therefore preferably provided on the elastically and / or plastically deformable region of the insertion channel.

Der gebogene Bereich des Einführkanals kann unterschiedlich ausgebildet sein. Insbesondere der Grad der Verbiegung kann variieren. Der gebogene Bereich dient dazu, beim Einführen des elektrischen Leiters in den Einführkanal das Ende des elektrischen Leiters zu verformen, um dieses optimal zu dem Befestigungselement zu führen. Hierdurch wird eine definierte Lage des elektrischen Leiters innerhalb der Befestigungsvorrichtung erreicht. Der gebogene Bereich des Einführkanals ermöglicht es, dass die Öffnung zur Einführung des elektrischen Leiters geneigt zu der Öffnung des Einführkanals, die dem Befestigungselement zugewandt ist, ausgebildet ist.The curved region of the insertion channel can be designed differently. In particular, the degree of bending can vary. The bent portion serves to deform when inserting the electrical conductor into the insertion channel, the end of the electrical conductor to guide this optimally to the fastener. As a result, a defined position of the electrical conductor is achieved within the fastening device. The bent portion of the insertion channel allows the opening for insertion of the electrical conductor to be inclined to the opening of the insertion channel facing the fixing member.

Eine bevorzugte Ausführungsform der Befestigungsvorrichtung sieht vor, dass der Einführkanal einen um 75-95° gebogenen Bereich aufweist. Insbesondere ein um 90° gebogener Bereich des Einführkanals ist besonders bevorzugt. Hierdurch kann die wenigstens eine Öffnung zur Einführung des elektrischen Leiters um 90° geneigt zu der Öffnung des Einführkanals, die dem Befestigungselement zugewandt ist, ausgebildet sein. Dies ermöglicht, dass das Bauvolumen der Befestigungsvorrichtung gering gehalten werden kann, da der elektrische Leiter nicht von einer anderen Seite, als das Befestigungselement in das Innere der Befestigungsvorrichtung eingeführt werden muss.A preferred embodiment of the fastening device provides that the insertion channel has a bent by 75-95 ° region. In particular, a bent by 90 ° region of the insertion channel is particularly preferred. This allows the at least one opening for insertion of the electrical conductor by 90 ° inclined to the opening of the insertion channel, which faces the fastening element may be formed. This allows the volume of construction of the fastening device to be kept low because the electrical conductor does not have to be inserted from a side other than the fastening element into the interior of the fastening device.

Der gebogene Bereich des Einführkanals der Befestigungsvorrichtung weist bevorzugt einen um 90° gebogenen Verlauf auf, der von dem spitz zulaufenden Ende des kegelstumpfförmig ausgebildeten ersten Bereichs ausgeht. Hierdurch wird das Ende des elektrischen Leiters nach der Einführung durch den kegelstumpfförmig ausgebildeten ersten Bereich direkt durch den anschließenden gebogenen Bereich zu dem Befestigungselement geführt. Dabei wird der Verlauf des elektrischen Leiters um 90° umgelenkt. Nach der Durchführung durch den gebogenen Bereich verläuft das Ende des elektrischen Leiters senkrecht zu der Mittelachse der einschraubbaren Befestigungsschraube. Hierdurch kann der elektrische Leiter optimal von der Befestigungsschraube an dem fixen elektrischen Kontakt der Befestigungsvorrichtung befestigt werden.The bent portion of the insertion channel of the fastening device preferably has a bent by 90 ° course, which emanates from the tapered end of the frusto-conical shaped first portion. As a result, the end of the electrical conductor is guided by the frusto-conical first portion directly after introduction through the subsequent curved portion to the fastener. The course of the electrical conductor is deflected by 90 °. After passing through the bent portion, the end of the electrical conductor is perpendicular to the central axis of the screw-fastening screw. In this way, the electrical conductor can be optimally secured by the fastening screw to the fixed electrical contact of the fastening device.

Die Fixierelemente der Befestigungsvorrichtung sitzen bevorzugt am Anfang des gebogenen Bereiches des Einführkanals, wobei der Anfang des gebogenen Bereiches dem spitz zulaufenden Ende des kegelstumpfförmig ausgebildeten ersten Bereiches des Einführkanals zugewandt ist. Die Fixierelemente können dabei an einem rippenförmigen Vorsprung an der Innenmantelfläche des Einführkanals angeordnet sein. Durch die Lage der Fixierelemente kann der eingeführte elektrische Leiter direkt am Anfang des gebogenen Bereiches gegen ein Herausrutschen gesichert werden. Dabei greifen die Fixierelemente bevorzugt in den ummantelten Bereich des elektrischen Leiters ein. Das freie Ende des elektrischen Leiters verläuft entlang des gebogenen Bereiches des Einführkanals bis zum Befestigungselement.The fixing elements of the fastening device preferably sit at the beginning of the bent portion of the insertion channel, wherein the beginning of the bent portion facing the tapered end of the frusto-conical shaped first portion of the insertion channel. The fixing elements can be arranged on a rib-shaped projection on the inner circumferential surface of the insertion channel. Due to the position of the fixing elements, the inserted electrical conductor can be secured against slipping out directly at the beginning of the bent region. In this case, the fixing elements preferably engage in the sheathed region of the electrical conductor. The free end of the electrical conductor runs along the bent portion of the insertion channel to the fastening element.

Gemäß dem zweiten Aspekt der Erfindung wird die Aufgabe ferner durch ein Schaltgerät oder durch ein Erfassungsgerät, mit einer Befestigungsvorrichtung zur Befestigung wenigstens eines elektrischen Leiters an wenigstens einem fixen elektrischen Kontakt des Schaltgerätes oder des Erfassungsgerätes, aufweisend wenigstens ein Befestigungselement und wenigstens eine Öffnung zur Einführung wenigstens eines elektrischen Leiters in die Befestigungsvorrichtung, wobei die Befestigungsvorrichtung gemäß dem ersten Aspekt der Erfindung ausgebildet ist, gelöst.According to the second aspect of the invention, the object is further achieved by a switching device or by a detection device, with a fastening device for fastening at least one electrical conductor to at least one fixed electrical contact of the switching device or the detection device, comprising at least one fastening element and at least one opening for insertion at least an electrical conductor in the fastening device, wherein the fastening device is formed according to the first aspect of the invention solved.

Die Befestigungsvorrichtung kann in verschiedensten Schaltgeräten oder Erfassungsgeräten angeordnet sein. Ein Schaltgerät kann beispielsweise ein Leistungsschalter, ein Halbleiterschaltgerät, ein Relais, ein Schütz, ein Motorenschutzrelais oder -schalter, ein Leistungsschalter oder ein Leitungsschutzschalter sein. Das Erfassungsgerät kann beispielsweise ein induktiver oder kapazitiver Näherungsschalter, ein optoelektronischer Sensor, ein Ultraschallsensor oder ein Drucksensor sein. Bevorzugt ist das Erfassungsgerät ein Positionsschalter. Die Positionsschalter können zusätzlich AS-Interface aufweisen. Schaltgeräte oder Erfassungsgeräte mit einer derartigen zuvor beschriebenen Befestigungsvorrichtung können sehr einfach und schnell an einem elektrischen Leiter angeschlossen bzw. ein elektrischer Leiter kann sehr einfach und schnell an ein Schaltgerät oder ein Erfassungsgerät mit einer derartigen zuvor beschriebenen Befestigungsvorrichtung angeschlossen werden. Dabei kann der elektrische Leiter aufgrund der Fixierelemente des Einführkanals der Befestigungsvorrichtung mit einer Hand an dem Schaltgerät oder dem Erfassungsgerät fixiert werden und eine elektrisch leitende Verbindung zu dem fixen elektrischen Kontakt der Befestigungsvorrichtung hergestellt werden.The fastening device can be arranged in a variety of switching devices or detection devices. A switching device may be, for example, a circuit breaker, a semiconductor switching device, a relay, a contactor, a motor protection relay or switch, a circuit breaker or a circuit breaker. The detection device may be, for example, an inductive or capacitive proximity switch, an optoelectronic sensor, an ultrasonic sensor or a pressure sensor. Preferably, the detection device is a position switch. The position switches can also have AS-Interface. Switchgear or detection devices with such a fastening device described above can be very easily and quickly connected to an electrical conductor or an electrical conductor can be very easily and quickly connected to a switching device or a detection device with such a fastening device described above. In this case, the electrical conductor due to the fixing of the insertion of the fastening device can be fixed with one hand on the switching device or the detection device and an electrically conductive connection to the fixed electrical contact of the fastening device can be made.

Der elektrische Leiter kann zusätzlich durch ein Deckelelement an dem Schaltgerät oder dem Erfassungsgerät gehalten werden.The electrical conductor can additionally be held by a cover element on the switching device or the detection device.

Die Erfindung wird nun anhand von Ausführungsbeispielen unter Bezugnahme auf die beiliegenden Zeichnungen näher erläutert.The invention will now be explained in more detail by means of embodiments with reference to the accompanying drawings.

Es zeigen:

Figur 1
eine schematische Seitenansicht einer Befestigungs- vorrichtung gemäß des Standes der Technik;
Figur 2
eine zweite schematische Seitenansicht einer Befes- tigungsvorrichtung gemäß des Standes der Technik;
Figur 3
eine dritte schematische Seitenansicht einer Befes- tigungsvorrichtung gemäß des Standes der Technik;
Figur 4
eine schematische Seitenansicht einer erfindungsge- mäßen Befestigungsvorrichtung;
Figur 5
eine schematische Draufsicht auf eine die Befesti- gungsvorrichtung gemäß Fig. 4;
Figur 6
eine weitere Seitenansicht einer erfindungsgemäßen Befestigungsvorrichtung;
Figur 7
eine vergrößerte Darstellung des Bereichs des Ein- führkanal mit Fixierelementen.
Show it:
FIG. 1
a schematic side view of a fastening device according to the prior art;
FIG. 2
a second schematic side view of a fastening device according to the prior art;
FIG. 3
a third schematic side view of a fastening device according to the prior art;
FIG. 4
a schematic side view of a fastening device according to the invention;
FIG. 5
a schematic plan view of a fastening device according to Fig. 4 ;
FIG. 6
a further side view of a fastening device according to the invention;
FIG. 7
an enlarged view of the region of the insertion channel with fixing elements.

Die Fig. 1-3 zeigen Befestigungsvorrichtungen gemäß dem Stand der Technik. Diese Figuren sind in der Beschreibungseinleitung beschrieben worden.The Fig. 1-3 show fastening devices according to the prior art. These figures have been described in the introduction to the description.

In der Fig. 4 ist eine schematische Seitenansicht einer Ausführungsform der Befestigungsvorrichtung 1 dargestellt. Zwischen der Öffnung 5 zur Durchführung des elektrischen Leiters 2 und dem Befestigungselement 4 ist ein Einführkanal 6 zur Führung des elektrischen Leiters 2 zu dem Befestigungselement 4 angeordnet. Der Einführkanal 6 weist einen ersten kegelstumpfförmigen Bereich 7 auf. Dieser kegelstumpfförmig ausgebildete erste Bereich 7 läuft ausgehend von der Öffnung 5 in Richtung des Inneren der Befestigungsvorrichtung 1 spitz zu. Der kegelstumpfförmig ausgebildete erste Bereich 7 erleichtert das Einführen des elektrischen Leiters 2 in den Einführkanal 6. Durch den kegelstumpfförmigen bzw. trichterförmigen ersten Bereich 7 des Einführkanals 6 wird das Ende des elektrischen Leiters 2 zu den bogenförmig ausgebildeten Bereich 12 des Einführkanals 6 geführt. Ein kompliziertes Einfädeln des Endes des elektrischen Leiters 2 in die Befestigungsvorrichtung 1 wird hierdurch vermieden. Die breite Seite des kegelstumpfförmig ausgebildeten Bereiches 7 liegt direkt an der Öffnung 5, durch die der elektrische Leiter 5 eingeführt werden kann. Der gebogene Bereich 12 des Einführkanals 6 folgt direkt dem kegelstumpfförmig ausgebildeten Bereich 7 des Einführkanals 6. Es findet in dieser Ausführungsform der Befestigungsvorrichtung 1 ein direkter Übergang zwischen diesen beiden Bereichen statt.In the Fig. 4 is a schematic side view of an embodiment of the fastening device 1 is shown. Between the opening 5 for the passage of the electrical conductor 2 and the fastening element 4, an insertion channel 6 for guiding the electrical conductor 2 to the fastening element 4 is arranged. The insertion channel 6 has a first frusto-conical region 7. This frustoconical shaped first region 7 runs from the opening 5 in Direction of the interior of the fastening device 1 pointed. The frustoconical shaped first region 7 facilitates the insertion of the electrical conductor 2 in the insertion channel 6. By the frusto-conical or funnel-shaped first portion 7 of the insertion channel 6, the end of the electrical conductor 2 is guided to the arcuate portion 12 of the insertion channel 6. A complicated threading of the end of the electrical conductor 2 in the fastening device 1 is thereby avoided. The broad side of the truncated cone-shaped region 7 is located directly at the opening 5, through which the electrical conductor 5 can be inserted. The bent portion 12 of the insertion channel 6 follows directly the frusto-conical portion 7 of the insertion channel 6. It takes place in this embodiment of the fastening device 1, a direct transition between these two areas.

Durch einen derart ausgebildeten Einführkanal 6 kann ein elektrischer Leiter 2 bzw. das Ende eines elektrischen Leiters 2 zielgenau zu dem Befestigungselement 4 geführt werden, um von diesem an den fixen elektrischen Kontakt 3 der Befestigungsvorrichtung 1 geklemmt zu werden. Das Ende des elektrischen Leiters kann nicht fehlerhaft abknicken, sondern wird entsprechend dem gebogenen Bereich 12 des Einführkanals 6 gebogen. Der elektrische Leiter 2 passt sich beim Einführen dem speziell ausgebildeten Einführkanal 6 an. Der Durchmesser des Einführkanals 6 ist vorteilhafterweise nur geringfügig größer, als der Durchmesser des elektrischen Leiters 2 bzw. des Endes des elektrischen Leiters 2. Der Einführkanal 6 bildet eine schlauchartige Führung für den elektrischen Leiter 2.By means of such an insertion channel 6, an electrical conductor 2 or the end of an electrical conductor 2 can be guided precisely to the fastening element 4 in order to be clamped by the latter to the fixed electrical contact 3 of the fastening device 1. The end of the electrical conductor can not bend incorrectly, but is bent according to the bent portion 12 of the insertion channel 6. The electrical conductor 2 adapts to the specially designed insertion channel 6 during insertion. The diameter of the insertion channel 6 is advantageously only slightly larger than the diameter of the electrical conductor 2 and the end of the electrical conductor 2. The insertion channel 6 forms a tubular guide for the electrical conductor. 2

Die Öffnung 5, durch die der elektrische Leiter in die Befestigungsvorrichtung eingeführt wird, ist an derselben Gehäuseseite der Befestigungsvorrichtung 1 angeordnet, wie die zweite Öffnung 8, durch die das Befestigungselement 4, hier eine Befestigungsschraube, eingeführt werden kann. Hierdurch kann das Bauvolumen der Befestigungsvorrichtung 1 gering gehalten werden, wenn der elektrische Leiter 2 an dem fixen elektrischen Kontakt 3 der Befestigungsvorrichtung 1 befestigt ist.The opening 5, through which the electrical conductor is inserted into the fastening device, is arranged on the same side of the housing of the fastening device 1, as the second opening 8, through which the fastening element 4, here a fastening screw, can be inserted. As a result, the overall volume of the fastening device 1 can be kept low are when the electrical conductor 2 is fixed to the fixed electrical contact 3 of the fastening device 1.

Es ist selbstverständlich denkbar, dass die Befestigungsvorrichtung 1 zur Befestigung eines elektrischen Leiters 2 an einem fixen elektrischen Kontakt 3, zwei oder mehr Befestigungselemente 4 und entsprechende Öffnungen 5 zur Einführung von mehreren elektrischen Leitern 2 in die Befestigungsvorrichtung 1 aufweist, wobei zwischen den Befestigungselementen 4 und den Öffnungen 5 jeweils ein Einführkanal 6 zur Führung eines der elektrischen Leiter 2 zu den jeweiligen Befestigungselementen 4 vorgesehen sind, der zumindest bereichsweise gebogen ausgebildet ist.It is of course conceivable that the fastening device 1 for fastening an electrical conductor 2 to a fixed electrical contact 3, two or more fasteners 4 and corresponding openings 5 for the introduction of several electrical conductors 2 in the fastening device 1, wherein between the fastening elements 4 and The openings 5 are each provided with an insertion channel 6 for guiding one of the electrical conductors 2 to the respective fastening elements 4, which is formed curved at least in certain areas.

Das Ende des elektrischen Leiters 2 wird durch den Einführkanal 6 derart verformt, dass dieses senkrecht zu der Mittelachse des Schaftes der Befestigungsschraube 4 verläuft. Hierdurch kann die Befestigungsschraube 4 bzw. die auf der Befestigungsschraube 4 aufgesteckte Befestigungsscheibe 13 das Ende des elektrischen Leiters 2 optimal an dem fixen elektrischen Kontakt 3 der Befestigungsvorrichtung 1 befestigen.The end of the electrical conductor 2 is deformed by the insertion channel 6 such that it extends perpendicular to the central axis of the shank of the fastening screw 4. As a result, the fastening screw 4 or the mounting plate 13 plugged onto the fastening screw 4 can fix the end of the electrical conductor 2 optimally to the fixed electrical contact 3 of the fastening device 1.

Der gebogenen Bereich 12 des Einführkanals 6, hier ist der Verlauf des Einführkanals 6 um 90° gebogen, ermöglicht zum einen den kompakten Aufbau der Befestigungsvorrichtung 1 und zum anderen die optimale Führung des Endes des elektrischen Leiters 2 zu dem Befestigungselement 4.The curved portion 12 of the insertion channel 6, here the course of the insertion channel 6 is bent by 90 °, allows for a compact design of the fastening device 1 and on the other hand, the optimal guidance of the end of the electrical conductor 2 to the fastener. 4

In der Fig. 5 ist eine Draufsicht auf die Befestigungsvorrichtung 1 gemäß Fig. 4 dargestellt. Die Öffnung 5 zur Durchführung des elektrischen Leiters 2 ist achsparallel zu der zweiten Öffnung 8, die zur Einführung des Befestigungselementes 4 bzw. eines Werkzeuges zum Betätigen des Befestigungselementes 4 dient, angeordnet. Bei Öffnungen 5, 8 sind somit von einer Seite zugänglich, so dass das Bauvolumen der Befestigungsvorrichtung 1 gering gehalten werden kann, wenn der elektrischen Leiter 2 an der Befestigungsvorrichtung 1 befestigt ist.In the Fig. 5 is a plan view of the fastening device 1 according to Fig. 4 shown. The opening 5 for the passage of the electrical conductor 2 is axially parallel to the second opening 8, which serves for the introduction of the fastening element 4 or a tool for actuating the fastening element 4, respectively. For openings 5, 8 are thus accessible from one side, so that the overall volume of the fastening device 1 can be kept low when the electrical conductor 2 is attached to the fastening device 1.

In der Fig. 6 ist die gleiche Befestigungsvorrichtung 1, wie Fig. 4 gezeigt. Der einzige Unterschied ist, dass die Befestigungsvorrichtung 1 durch ein Deckelelement 11 eines Schaltgerätes oder eines Erfassungsgerätes abgedeckt ist, so dass der elektrischen Leiter 2 bzw. der ummantelte Bereich 10 des elektrischen Leiters 2 außerhalb der Befestigungsvorrichtung 1 abgenickt wird.In the Fig. 6 is the same fastening device 1, as Fig. 4 shown. The only difference is that the fastening device 1 is covered by a cover element 11 of a switching device or a detection device, so that the electrical conductor 2 or the sheathed region 10 of the electrical conductor 2 outside the fastening device 1 is bent off.

In der Fig. 7 ist der in Fig. 6 mit A gekennzeichnete Bereich vergrößert dargestellt. Der elektrische Leiter 2 ist durch den kegelstumpfförmigen ersten Bereich 7 des Einführkanals 6 in diesen eingeführt worden. Das nicht ummantelte Ende des elektrischen Leiters 2 folgt dem gebogenen Bereich 12 des Einführkanals 6. Der gebogene Bereich 12 des Einführkanals 6 sitzt direkt an dem spitz zulaufenden Ende des kegelstumpfförmigen ersten Bereiches 7. In dem Übergangsbereich von dem kegelstumpfförmigen ersten Bereich 7 und dem gebogenen Bereich 12 des Einführkanals 6 sind Fixierelemente 9 vorgesehen. Diese Fixierelemente 9 dienen dazu den einmal eingeführten elektrischen Leiter 2 in dem Einführkanal 6 bzw. in der Befestigungsvorrichtung 1 zu halten. Hierzu können die Fixierelemente 9 widerhakenförmig Richtung der Mittelachse des Einführkanals 6 hervorstehen. Dabei sind die Fixierelemente 9 derart angeordnet, dass sie lediglich das Herausrutschen des elektrischen Leiters 2 aus dem Einführkanal 6 verhindern. In einer anderen bevorzugten Ausführungsform der Befestigungsvorrichtung 1 kann vorgesehen sein, dass der Einführkanal 6 zumindest bereichsweise elastisch und/oder plastisch verformbar ausgebildet ist. Hierdurch können die zur Mittelachse des Einführkanals 6 hervorstehenden Fixierelemente 9, die bevorzugt in Form von spitzen nadelförmigen Vorsprüngen gebildet sind, in den elektrischen Leiter eindrückt werden, so dass diese in dem Einführkanal 6 fixiert ist. Dabei werden die Fixierelemente 9 insbesondere in die Ummantelung 10 des elektrischen Leiters 2 eingedrückt. Durch die plastische Verformung des Einführkanals 6 bleibt die Fixierung des elektrischen Leiters 2 in dem Einführkanal 6 dauerhaft. Ist der Einführkanal zumindest bereichsweise elastisch ausgebildet, kann sich die Fixierung nach einer Weile von alleine wieder lösen. Die Fixierung besteht aber solange, bis das Ende des elektrischen Leiters 2 durch das Befestigungselement 4 an dem fixen elektrischen Kontakt 3 der Befestigungsvorrichtung 1 befestigt ist. Da die Befestigung des Endes des elektrischen Leiters 2 in der Regel unmittelbar nach der Durchführung des elektrischen Leiters 2 durch den Einführkanal 6 erfolgt, ist eine kurzfristige Fixierung des elektrischen Leiters 2 mittels der Fixierelemente 9 ausreichend.In the Fig. 7 is the in Fig. 6 Area marked A is shown enlarged. The electrical conductor 2 has been inserted through the frusto-conical first portion 7 of the insertion channel 6 in this. The unjacketed end of the electrical conductor 2 follows the bent portion 12 of the insertion channel 6. The bent portion 12 of the insertion channel 6 is seated directly at the tapered end of the truncated conical first portion 7. In the transition region from the truncated conical first portion 7 and the bent portion 12 of the insertion channel 6 fixing elements 9 are provided. These fixing elements 9 serve to hold the once introduced electrical conductor 2 in the insertion channel 6 and in the fastening device 1. For this purpose, the fixing elements 9 barb-shaped direction of the central axis of the insertion channel 6 protrude. The fixing elements 9 are arranged such that they only prevent slipping out of the electrical conductor 2 from the insertion channel 6. In another preferred embodiment of the fastening device 1 can be provided that the insertion channel 6 is at least partially formed elastically and / or plastically deformable. As a result, the fixing elements 9 projecting toward the center axis of the insertion channel 6, which are preferably formed in the form of pointed needle-shaped projections, can be pressed into the electrical conductor so that it is fixed in the insertion channel 6. In this case, the fixing elements 9 are pressed in particular into the sheathing 10 of the electrical conductor 2. Due to the plastic deformation of the insertion channel 6, the fixation of the electrical conductor 2 in the insertion channel 6 remains permanent. Is the insertion channel at least partially elastically formed, the fixation can solve by itself again after a while. However, the fixation continues until the end of the electrical conductor 2 is fixed by the fastening element 4 to the fixed electrical contact 3 of the fastening device 1. Since the attachment of the end of the electrical conductor 2 is usually carried out immediately after the passage of the electrical conductor 2 through the insertion channel 6, a short-term fixation of the electrical conductor 2 by means of the fixing elements 9 is sufficient.

Eine bevorzugte Ausführungsform der Befestigungsvorrichtung 1 sieht vor, dass der Einführkanal 6 einen um 75-95° gebogenen Bereich 12 aufweist. Insbesondere ein um 90° gebogener Bereich 12 des Einführkanals 6 ist besonders bevorzugt, wie in Fig. 4 und 7 dargestellt. Hierdurch kann die Öffnung 5 zur Einführung des elektrischen Leiters um 90° geneigt zu der Öffnung 14 des Einführkanals 6, die dem Befestigungselement 4 zugewandt ist, ausgebildet sein. Dies ermöglicht, dass das Bauvolumen der Befestigungsvorrichtung 1 gering gehalten werden kann, da der elektrische Leiter 2 an der gleichen Seite, wie das Befestigungselement 4 oder das Werkzeug zur Betätigung des Befestigungselementes 4 in das Innere der Befestigungsvorrichtung 1 eingeführt werden muss.A preferred embodiment of the fastening device 1 provides that the insertion channel 6 has an area bent by 75-95 °. In particular, a 90 ° bent portion 12 of the insertion channel 6 is particularly preferred, as in Fig. 4 and 7 shown. As a result, the opening 5 for insertion of the electrical conductor inclined by 90 ° to the opening 14 of the insertion channel 6, which faces the fastening element 4 may be formed. This allows the volume of the fixture 1 to be kept low because the electrical conductor 2 on the same side as the fixture 4 or tool for actuating the fixture 4 must be inserted into the interior of the fixture 1.

Claims (11)

  1. Fastening apparatus (1) for fastening at least one electrical conductor (2) to at least one fixed electrical contact (3), having at least one fastening element (4) and at least one opening (5) for inserting the at least one electrical conductor (2) into the fastening apparatus (1), characterized in that at least one insertion channel (6) for guiding the at least one electrical conductor (2) to the at least one fastening element (4) is provided between the at least one fastening element (4) and the at least one opening (5), at least a region of said insertion channel being bent, wherein the at least one opening (5) runs axially parallel with respect to a second opening (8), through which the at least one fastening element (4) or a tool for actuating the fastening element (4) can be inserted into the fastening apparatus (1).
  2. Fastening apparatus (1) according to Claim 1, characterized in that the at least one insertion channel (6) has a first region (7), which is in the form of a truncated cone and, starting from the at least one opening (5), tapers to a point in the direction of the interior of the fastening apparatus (1).
  3. Fastening apparatus (1) according to either of Claims 1 and 2, characterized in that the at least one fastening element (4) is a fastening screw or a clamping element.
  4. Fastening apparatus (1) according to one of Claims 1 to 3, characterized in that the at least one insertion channel (6) has fixing elements (9) which protrude towards the centre of the channel and by means of which the electrical conductor (2) or the sheath (10) of the electrical conductor (2) can be fixed in the insertion channel (6).
  5. Fastening apparatus (1) according to one of Claims 1 to 4, characterized in that at least a region of the at least one insertion channel (6) is elastically and/or plastically deformable.
  6. Fastening apparatus (1) according to Claim 5, characterized in that the fixing elements (9) are provided on the elastically and/or plastically deformable region of the at least one insertion channel (6).
  7. Fastening apparatus (1) according to one of Claims 1 to 6, characterized in that the at least one insertion channel (6) has a region which is bent through 75-95°.
  8. Fastening apparatus (1) according to one of Claims 1 to 7, characterized in that the at least one insertion channel (6), starting from that end of the first region (7) in the form of a truncated cone which tapers to a point, has a profile which is bent through 90°.
  9. Fastening apparatus (1) according to one of Claims 4 to 8, characterized in that the fixing elements (9) are positioned at the start of the bent region of the at least one insertion channel (6), wherein the start of the bent region faces that end of the region (7) in the form of a truncated cone which tapers to a point of the at least one insertion channel (6).
  10. Switching device or detection device, with a fastening apparatus for fastening at least one electrical conductor to at least one fixed electrical contact of the switching device or detection device, having at least one fastening element and at least one opening for inserting the at least one electrical conductor into the fastening apparatus, characterized in that the fastening apparatus (1) is designed according to one of Claims 1 to 9.
  11. Switching device or detection device according to Claim 10, characterized in that the at least one electrical conductor (2) is held on the switching device or the detection device by a cover element (11).
EP07846560A 2007-11-12 2007-11-12 Fixing device and switchgear or detection appliance comprising a fixing device Not-in-force EP2208256B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP10007575A EP2264835B1 (en) 2007-11-12 2007-11-12 Fixing device and switching device or recording device with a fixing device
AT10007575T ATE520171T1 (en) 2007-11-12 2007-11-12 FASTENING DEVICE AND SWITCHING DEVICE OR DETECTION DEVICE WITH A FASTENING DEVICE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2007/009772 WO2009062523A1 (en) 2007-11-12 2007-11-12 Fixing device and switchgear or detection appliance comprising a fixing device

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP10007575.3 Division-Into 2010-07-21

Publications (2)

Publication Number Publication Date
EP2208256A1 EP2208256A1 (en) 2010-07-21
EP2208256B1 true EP2208256B1 (en) 2011-05-18

Family

ID=39590468

Family Applications (2)

Application Number Title Priority Date Filing Date
EP07846560A Not-in-force EP2208256B1 (en) 2007-11-12 2007-11-12 Fixing device and switchgear or detection appliance comprising a fixing device
EP10007575A Not-in-force EP2264835B1 (en) 2007-11-12 2007-11-12 Fixing device and switching device or recording device with a fixing device

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP10007575A Not-in-force EP2264835B1 (en) 2007-11-12 2007-11-12 Fixing device and switching device or recording device with a fixing device

Country Status (4)

Country Link
EP (2) EP2208256B1 (en)
CN (1) CN101855785B (en)
AT (2) ATE520171T1 (en)
WO (1) WO2009062523A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4117119A1 (en) * 2021-07-08 2023-01-11 Sacopa, S.A.U. Electrical connector

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2786611B1 (en) * 1998-11-26 2001-02-09 Jean Jacques Lefebvre CONNECTION TERMINAL FOR THE LOOP SUPPLY OF ELECTRICAL APPLIANCES
ATE252772T1 (en) * 1999-03-23 2003-11-15 Andreas Moehlenhoff DEVICE FOR ELECTRICALLY CONNECTING AT LEAST TWO ELECTRICAL DEVICES
DE10039961C1 (en) 2000-08-16 2002-02-28 Siemens Ag Electric device
EP1679766A1 (en) * 2005-01-10 2006-07-12 3M Innovative Properties Company Wire guide plate and assembly as well as a telecommunications module comprising at least one wire guide plate

Also Published As

Publication number Publication date
CN101855785B (en) 2013-04-03
EP2264835A1 (en) 2010-12-22
ATE510327T1 (en) 2011-06-15
WO2009062523A1 (en) 2009-05-22
CN101855785A (en) 2010-10-06
EP2264835B1 (en) 2011-08-10
ATE520171T1 (en) 2011-08-15
EP2208256A1 (en) 2010-07-21

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