EP3207594A1 - Terminal device having a busbar - Google Patents

Terminal device having a busbar

Info

Publication number
EP3207594A1
EP3207594A1 EP15778270.7A EP15778270A EP3207594A1 EP 3207594 A1 EP3207594 A1 EP 3207594A1 EP 15778270 A EP15778270 A EP 15778270A EP 3207594 A1 EP3207594 A1 EP 3207594A1
Authority
EP
European Patent Office
Prior art keywords
busbar
clamping device
slot
housing
contact part
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP15778270.7A
Other languages
German (de)
French (fr)
Other versions
EP3207594B1 (en
Inventor
Wjatscheslaw Janzen
Holger Steinhage
Andrea Götze
Oliver PETHIG
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Phoenix Contact GmbH and Co KG
Original Assignee
Phoenix Contact GmbH and Co KG
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 Phoenix Contact GmbH and Co KG filed Critical Phoenix Contact GmbH and Co KG
Publication of EP3207594A1 publication Critical patent/EP3207594A1/en
Application granted granted Critical
Publication of EP3207594B1 publication Critical patent/EP3207594B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • 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
    • H01R9/26—Clip-on terminal blocks for side-by-side rail- or strip-mounting
    • H01R9/2675—Electrical interconnections between two blocks, e.g. by means of busbars
    • 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
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
    • H01R4/242—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members being plates having a single slot
    • 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
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48185—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end
    • 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
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4846—Busbar details
    • 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
    • H01R9/26—Clip-on terminal blocks for side-by-side rail- or strip-mounting
    • 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
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48185—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end
    • H01R4/4819—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end the spring shape allowing insertion of the conductor end when the spring is unbiased
    • H01R4/4821—Single-blade spring
    • 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
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4846—Busbar details
    • H01R4/485—Single busbar common to multiple springs

Definitions

  • the invention relates to a clamping device according to the preamble of claim 1.
  • a clamping device may be formed in particular as a so-called jumper terminal, which are used for wiring of equipment and serve to distribute one or more electrical potentials.
  • a multiplicity of electrical lines can be connected to a jumper terminal, with different jumper terminal connections lying at one or more potentials.
  • a clamping device of the present type has a housing which forms at least one slot. At the at least one slot, a contact part is arranged, to which at least one electrical line for electrical contact with the contact part can be infected. On the housing, a bus bar is also arranged, which is electrically connected to the contact part and extends with a busbar section along a contour line.
  • Shunting clamps are known for example from EP 2 393 160 A1, DE 10 2007 059 640 A1, WO 2009/052949 A1 and WO 2010/091984 A1.
  • terminal device in the form of a jumper terminal each have a plurality of slots are formed on different sides of a housing housing, on each of which a contact part is arranged.
  • the slots on one side of the housing are connected in pairs via busbars with the slots on the other side of the housing, so that the slots are in pairs at the same potential.
  • the fundamental problem is that the terminal devices are exposed to changing environmental conditions during operation when used, for example, on an industrial plant.
  • temperature changes can occur at a terminal device, which leads to a spatial expansion of the different components of the clamping device, which can be problematic especially if different components expand in different ways due to different thermal expansion coefficients and thus there is a spatial change in position of the components to each other ,
  • a busbar Due to its elongated extension along a contour line, a busbar usually expands along the contour line.
  • a compensation area with sections of the busbar which extend at an angle to one another and are used as compensating means for compensating relative length changes is provided approximately centrally on each busbar.
  • a busbar has end sections which adjoin a busbar section perpendicularly and which are fixedly connected to contact parts.
  • a clamping device known from WO 2010/091 984 A1
  • obliquely extended end sections adjoin a central busbar section and produce a fixed connection with contact sections arranged at the end sections.
  • Object of the present invention is to provide a clamping device available that allows a simple, inexpensive, space-saving way compensation for relative changes in position due to different thermal expansion coefficients of components of the terminal device and ensure a secure, reliable electrical connection of a busbar with associated contact parts at slots can.
  • the bus bar portion includes an end portion which extends along an oblique direction at an oblique angle to the contour line and is movable along the contour line relative to the contact part.
  • This is based on the idea of compensating for changes in position due to expansion of components of the different thermal expansion coefficient clamping means by moving the end portion of the bus bar to the contact part to which the bus bar is electrically connected.
  • the end portion extends along an oblique angle at an oblique angle to the contour line along which the (middle) bus bar portion of the bus bar is elongate.
  • the busbar section in this case represents the line section of the busbar, which extends, for example, between different slots of the terminal device and thus provides a potential distribution.
  • the end portion is extended along an oblique direction at an oblique angle to the contour line and thus obliquely to the busbar section.
  • the oblique angle can in this case, for example, have a value between 20 ° and 70 °, preferably between 30 ° and 45 °, for example between 35 ° and 40 °.
  • the oblique angle can in this case, for example, depending on a predetermined insertion, in which a line can be inserted into a slot of the housing, be selected.
  • a slot is configured, for example, such that a line can be inserted into the slot in a plug-in direction that is oblique to the slot assigned to the slot
  • the end section is preferably extended to the contact part associated with the slot such that the skew direction is perpendicular facing the insertion direction.
  • Both the Insertion direction and the oblique direction thus describe an oblique angle to the contour line and are arranged at right angles to each other.
  • the contact part has two contact pins, between which the end section of the busbar is arranged in an electrically contacting manner.
  • the contact pins protrude, for example along the insertion direction of a bracket of the contact part and form between them a gap in which the end portion is arranged.
  • the end portion of the busbar is in this case movable in the space between the contact pins along the contour line such that at a longitudinal extension of the busbar relative to the housing, the end portion along the contour line can be pressed into the space between the contact pins, without thereby the electrical contact between the end portion and the contact pin is impaired.
  • the busbar and the contact part which serve to distribute the potential between connected lines, are expediently made of an electrically conductive material, in particular a metal, for example copper.
  • the housing is expediently made of an electrically insulating material, for example plastic.
  • the busbar has two end sections, which connect to the busbar section on different sides and serve for the electrical connection to two contact parts of two slots.
  • the busbar extends with its busbar section along an associated contour line and is used for potential distribution between both sides of the busbar arranged slots.
  • each busbar extends here with its busbar section along an associated contour line, wherein the busbars are spaced apart in the vertical direction perpendicular to the contour lines.
  • the busbars may have different lengths depending on the exact design of the terminal device along their associated contour lines.
  • the housing has, for example, at least one first slot on a first side of the housing of the clamping device and at least one second slot on another, second side of the housing of the clamping device.
  • a plurality of first slots may be provided on the first side of the housing and a plurality of second slots on the second side of the housing, wherein in each case a first slot and a second slot are assigned to a contour line and electrically connected to one another via a busbar for the purpose of potential distribution.
  • Such a clamping device in the form of a jumper terminal for example, have a fir-tree-like shape, in which an upper busbar along its associated contour line is shorter than a lower busbar.
  • the busbar is fixed to the housing, for example, made of an electrically insulating material, for example mechanically latched to the housing.
  • the busbar can be formed for example by a round conductor, which allows a simple, cost-effective production of the busbar with its obliquely angled end portions and allows easy mounting of the busbar to the housing.
  • FIG. 1 shows a side view of a clamping device in the form of a jumpering clamp
  • FIG. an enlarged view of a section of the view of FIG. 1
  • the clamping device 1 shows a side view of a clamping device 1 in the form of a jumper terminal, in which a plurality of first slots 100 are arranged on a first housing side 10 and a plurality of second slots 110 are arranged on a second housing side 11.
  • the clamping device 1 has a housing 12 made of an electrically insulating material, in particular plastic, and can for example, be plugged in the manner of a terminal together with other terminal devices to a common DIN rail to create in this way a terminal arrangement with a variety of different terminals.
  • a line 3 can in this case be inserted with a line end 30 in a plug-in direction E1, E2 in a slot 100, 1 10 and passes when plugged into a slot 100, 1 10 in electrical contact with a contact portion 13 at the respective slot 100, 1 10th ,
  • the contact parts 13 of the slots 100 on the first housing side 10 are each connected in pairs via busbars 2 with contact parts 13 of the slots 1 10 on the second side of the housing 1 1.
  • the busbars 2 are used for potential distribution between the slots 100 on the first side of the housing 10 and the slots 1 10 on the second side of the housing 1 1, extending along different contour lines L1 -L8 and are - in the vertical direction Z perpendicular to the contour lines L1-L8 - respectively spaced in pairs by a distance H from each other.
  • a line 3 can be inserted with its line end 30 in a plug-in direction E1 obliquely to the contour lines L1 -L8 in a slot 100 on the first side of the housing 10.
  • the insertion of a line 3 in a slot 1 10 on the second side of the housing 1 takes place - mirror-symmetrical to the vertical direction Z - in a plug-in direction E2, which is also directed obliquely to the contour lines L1 -L8.
  • Both the insertion direction E1 for the first housing side 10 and the insertion direction E2 for the second housing side 1 1 describe an angle ⁇ to the contour lines L1-L8.
  • the busbars 2 extend with a middle busbar section 20 along a respectively assigned contour line L1-L8.
  • each end section 21, 22 extends along an associated oblique direction S at an angle ⁇ obliquely to the contour line L1-L8 assigned to the busbar 2.
  • the angle ⁇ can be, for example, between 20 ° and 70 °, in particular between 30 ° and 45 °.
  • the angle ⁇ at which the oblique direction S of an associated end portion 21 extends to an associated contour line L1-L8, and the angle a at which the insertion direction E1, E2 for the respective slot 100, 1 10 extends to the contour line L1-L8 is, in total, 90 °.
  • the plug-in direction E1, E2 for a slot 100, 1 10 is thus perpendicular to the oblique direction S, along which the slot 100, 1 10 associated end portion 21 22 is directed.
  • each end section 21, 22 lies in a gap 133 between contact pins 130 of the contact part 13.
  • the contact pins 130 protrude from a bracket 131 along the associated insertion direction E1, E2 and are contacted via the bracket 131 electrically connected to a contact spring 132.
  • the line end 30 comes into electrical contact with the contact spring 132 and thus electrically contacts the contact part 13th
  • the contact part 13 is mechanically held on a holding part 14, which surrounds the associated end portion 21, 22 with pin 140 and the contact part 13 mechanically at the associated slot 100, 1 10 determines.
  • a retaining leg 141 holds the contact spring 132 in position.
  • the end sections 21, 22 on both sides of the middle busbar section 20 each extend obliquely at an angle ⁇ to the busbar section 20, a reliable electrical connection is provided between the busbar 2 and the respectively associated contact members 13.
  • the end sections 21, 22 are in this case arranged in the intermediate space 133 between the pins 130 of the respective associated contact part 13, that each end portion 21, 22 along the contour line L1 -L8, along which the busbar section 20 extends, at least to some extent in the Interspace 133 is movable. If, during operation of the clamping device 1, heating occurs on the different components of the clamping device 1, it may be due to different components at the different components
  • Thermal expansion coefficient come to different changes in length. Due to the longitudinal extent along the contour lines L1-L8, it is preferable for the busbars 2 to change in length along the contour lines L1-L8. However, such a change in length does not lead to an impairment of the electrical connection of the busbars 2 with the associated contact parts 13, because the end portions 21, 22 can move at least over a certain distance relative to the contact parts 13 and upon expansion of the busbars 2 in the interstices 133rd between the pins 130 of the respective associated contact parts 13 are pressed.
  • an end portion 21, 22 moves at least slightly in the gap 133 between the pin 130 of the associated contact part 13 and is in the Interspace 133 is pushed in the extension direction A, so that the electrical connection between the end portion 21, 22 and the contact part 13 amplified, but in any case does not affect the electrical transition between the contact part 13 and the busbar 2.
  • the busbar 2 with its different sections 20-22 is formed in one piece by a round conductor.
  • the busbar 2 is, as well as the associated contact parts 13, made of a metallic, electrically good conductive material, such as copper.
  • busbars of the type described here can also be used in other terminal devices as jumper terminals.
  • a clamping device is not necessarily mirror-symmetrical.
  • multiple busbars are available.
  • a clamping device can also use only a single busbar with one or more end sections.

Landscapes

  • Installation Of Bus-Bars (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Connection Or Junction Boxes (AREA)

Abstract

A terminal device comprises a housing which has at least one slot, a contact part which is arranged at the at least one slot and to which at least one electrical line for making electrical contact with the contact part can be plugged, and at least one busbar which is arranged on the housing and is electrically connected to the contact part and a busbar section of which extends along an elevation line. In this case, provision is made for an end section (21, 22) to adjoin the busbar section (20), which end section extends along an oblique direction (S) at an oblique angle (ß) with respect to the elevation line (L1 - L8) and can be moved relative to the contact part (13) along the elevation line (L1 - L8). This provides a terminal device which makes it possible to compensate for relative positional changes on account of different coefficients of thermal expansion at components of the terminal device in a simple, cost-effective and space-saving manner and makes it possible to ensure a safe, reliable electrical connection between a busbar and associated contact parts at slots.

Description

Klemmeneinrichtung mit einer Stromschiene  Terminal device with a busbar
Die Erfindung betrifft eine Klemmeneinrichtung nach dem Oberbegriff des Anspruchs 1. Eine solche Klemmeneinrichtung kann insbesondere als sogenannte Rangierklemme ausgebildet sein, die zum Verkabeln von Anlagen eingesetzt werden und zum Verteilen eines oder mehrerer elektrischer Potentiale dienen. An eine Rangierklemme können üblicherweise eine Vielzahl von elektrischen Leitungen angeschlossen werden, wobei unterschiedliche Anschlüsse der Rangierklemme auf einem oder mehreren Potentialen liegen. The invention relates to a clamping device according to the preamble of claim 1. Such a clamping device may be formed in particular as a so-called jumper terminal, which are used for wiring of equipment and serve to distribute one or more electrical potentials. Usually, a multiplicity of electrical lines can be connected to a jumper terminal, with different jumper terminal connections lying at one or more potentials.
Eine Klemmeneinrichtung der hier vorliegenden Art weist ein Gehäuse auf, das mindestens einen Steckplatz ausbildet. An dem mindestens einen Steckplatz ist ein Kontaktteil angeordnet, an das mindestens eine elektrische Leitung zum elektrischen Kontaktieren mit dem Kontaktteil angesteckt werden kann. An dem Gehäuse ist zudem eine Stromschiene angeordnet, die elektrisch mit dem Kontaktteil verbunden ist und sich mit einem Stromschienenabschnitt entlang einer Höhenlinie erstreckt. A clamping device of the present type has a housing which forms at least one slot. At the at least one slot, a contact part is arranged, to which at least one electrical line for electrical contact with the contact part can be infected. On the housing, a bus bar is also arranged, which is electrically connected to the contact part and extends with a busbar section along a contour line.
Rangierklemmen sind beispielsweise aus der EP 2 393 160 A1 , der DE 10 2007 059 640 A1 , der WO 2009/052949 A1 und der WO 2010/091984 A1 bekannt. Shunting clamps are known for example from EP 2 393 160 A1, DE 10 2007 059 640 A1, WO 2009/052949 A1 and WO 2010/091984 A1.
Bei einer aus der EP 2 393 160 A1 bekannten Klemmeneinrichtung in Form einer Rangierklemme sind an unterschiedlichen Gehäuseseiten eines Gehäuses jeweils mehrere Steckplätze ausgebildet, an denen jeweils ein Kontaktteil angeordnet ist. Die Steckplätze an der einen Gehäuseseite sind hierbei paarweise über Stromschienen mit den Steckplätzen an der anderen Gehäuseseite verbunden, so dass die Steckplätze paarweise auf dem gleichen Potential liegen. In a known from EP 2 393 160 A1 terminal device in the form of a jumper terminal each have a plurality of slots are formed on different sides of a housing housing, on each of which a contact part is arranged. The slots on one side of the housing are connected in pairs via busbars with the slots on the other side of the housing, so that the slots are in pairs at the same potential.
Bei solchen Klemmeneinrichtungen in Form von Rangierklemmen besteht das grundsätzliche Problem, dass die Klemmeneinrichtungen im Betrieb bei Verwendung beispielsweise an einer Industrieanlage sich ändernden Umgebungsbedingungen ausgesetzt sind. So können an einer Klemmeneinrichtung Temperaturänderungen auftreten, die zu einer räumlichen Ausdehnung an den unterschiedlichen Komponenten der Klemmeinrichtung führt, was insbesondere dann problematisch sein kann, wenn unterschiedliche Komponenten sich aufgrund unterschiedlicher Wärmeausdehnungskoeffizienten in unterschiedlicher Weise ausdehnen und es somit zu einer räumlichen Lageänderung der Komponenten zueinander kommt. Eine Stromschiene dehnt sich aufgrund ihrer länglichen Erstreckung entlang einer Höhenlinie üblicherweise vorzugsweise entlang der Höhenlinie aus. Dehnt sich bei Erwärmung beispielsweise das Gehäuse, an dem die Stromschiene angeordnet ist, in anderer Weise aus als die Stromschiene, weil sich der Wärmeausdehnungskoeffizient des beispielsweise aus Kunststoff hergestellten Gehäuses von dem Wärmeausdehnungskoeffizienten des Materials der metallischen Stromschiene unterscheidet, so kann sich die Lage der Stromschiene zu den Kontaktteilen, mit denen die Stromschiene verbunden ist, ändern, was zu einer Beeinträchtigung des elektrischen Übergangs zwischen der Stromschiene und den Kontaktteilen führen kann. In such terminal devices in the form of jumper terminals, the fundamental problem is that the terminal devices are exposed to changing environmental conditions during operation when used, for example, on an industrial plant. Thus, temperature changes can occur at a terminal device, which leads to a spatial expansion of the different components of the clamping device, which can be problematic especially if different components expand in different ways due to different thermal expansion coefficients and thus there is a spatial change in position of the components to each other , Due to its elongated extension along a contour line, a busbar usually expands along the contour line. Expands when heated, for example, the housing to which the busbar is arranged in a different way than the busbar, because the coefficient of thermal expansion of the example made of plastic housing differs from the coefficient of thermal expansion of the material of the metallic busbar, the position of the busbar to the contact parts with which the busbar is connected, change, which can lead to a deterioration of the electrical transition between the busbar and the contact parts.
Aus diesem Grund ist beispielsweise bei der Klemmeneinrichtung der EP 2 393 160 A1 in etwa mittig an jeder Stromschiene ein Ausgleichsbereich mit winklig zueinander erstreckten Abschnitten der Stromschiene, die als Ausgleichseinrichtung zum Ausgleichen von relativen Längenveränderungen dienen, vorgesehen. For this reason, in the case of the clamping device of EP 2 393 160 A1, for example, a compensation area with sections of the busbar which extend at an angle to one another and are used as compensating means for compensating relative length changes is provided approximately centrally on each busbar.
Bei einer aus der DE 10 2007 059 640 A1 bekannten Klemmeneinrichtung weist eine Stromschiene senkrecht an einen Stromschienenabschnitt anschließende Endabschnitte auf, die fest mit Kontaktteilen verbunden sind. In a clamping device known from DE 10 2007 059 640 A1, a busbar has end sections which adjoin a busbar section perpendicularly and which are fixedly connected to contact parts.
Bei einer aus der WO 2010/091 984 A1 bekannten Klemmeneinrichtung schließen an einen mittigen Stromschienenabschnitt schräg erstreckte Endabschnitte an, die eine feste Verbindung mit an den Endabschnitten angeordneten Kontaktteilen herstellen. Aufgabe der vorliegenden Erfindung ist es, eine Klemmeneinrichtung zur Verfügung zu stellen, die auf einfache, kostengünstige, bauraumsparende Weise einen Ausgleich für relative Lageveränderungen aufgrund unterschiedlicher Wärmeausdehnungskoeffizienten an Komponenten der Klemmeneinrichtung ermöglicht und eine sichere, zuverlässige elektrische Verbindung einer Stromschiene mit zugeordneten Kontaktteilen an Steckplätzen gewährleisten kann. In a clamping device known from WO 2010/091 984 A1, obliquely extended end sections adjoin a central busbar section and produce a fixed connection with contact sections arranged at the end sections. Object of the present invention is to provide a clamping device available that allows a simple, inexpensive, space-saving way compensation for relative changes in position due to different thermal expansion coefficients of components of the terminal device and ensure a secure, reliable electrical connection of a busbar with associated contact parts at slots can.
Diese Aufgabe wird durch einen Gegenstand mit den Merkmalen des Anspruchs 1 gelöst. This object is achieved by an article having the features of claim 1.
Demnach schließt an den Stromschienenabschnitt ein Endabschnitt an, der sich entlang einer Schrägrichtung unter einem schrägen Winkel zur Höhenlinie erstreckt und entlang der Höhenlinie relativ zu dem Kontaktteil bewegbar ist. Dies geht von dem Gedanken aus, einen Ausgleich für Lageveränderungen infolge einer Ausdehnung von Komponenten der Klemmeneinrichtung mit unterschiedlichem Wärmeausdehnungskoeffizienten dadurch zu schaffen, dass der Endabschnitt der Stromschiene zu dem Kontaktteil, mit dem die Stromschiene elektrisch verbunden ist, bewegbar ist. Der Endabschnitt erstreckt sich entlang einer Schrägrichtung unter einem schrägen Winkel zur Höhenlinie, entlang derer der (mittlere) Stromschienenabschnitt der Stromschiene längserstreckt ist. Der Stromschienenabschnitt stellt hierbei den Leitungsabschnitt der Stromschiene dar, der sich beispielsweise zwischen unterschiedlichen Steckplätzen der Klemmeneinrichtung erstreckt und somit eine Potentialverteilung zur Verfügung stellt. Accordingly, to the bus bar portion includes an end portion which extends along an oblique direction at an oblique angle to the contour line and is movable along the contour line relative to the contact part. This is based on the idea of compensating for changes in position due to expansion of components of the different thermal expansion coefficient clamping means by moving the end portion of the bus bar to the contact part to which the bus bar is electrically connected. The end portion extends along an oblique angle at an oblique angle to the contour line along which the (middle) bus bar portion of the bus bar is elongate. The busbar section in this case represents the line section of the busbar, which extends, for example, between different slots of the terminal device and thus provides a potential distribution.
Bei einer Erwärmung der Klemmeneinrichtung wird es insbesondere an dem entlang der zugeordneten Höhenlinie erstreckten Stromschienenabschnitt zu einer Längenänderung entlang der Höhenlinie kommen, was dazu führt, dass sich der an den Stromschienenabschnitt anschließende Endabschnitt entlang der Höhenlinie relativ zu dem Kontaktteil bewegt, was aufgrund der Bewegbarkeit des Endabschnitts zu dem Kontaktteil ohne weiteres möglich ist und insbesondere nicht zu einer Beeinträchtigung der elektrischen Verbindung zwischen dem Endabschnitt und dem Kontaktteil führt. Dadurch, dass sich der Endabschnitt schräg zur Höhenlinie erstreckt, wird der Endabschnitt bei einer Längenänderung der Stromschiene aufgrund einer Ausdehnung bei Erwärmung entlang der Höhenlinie vielmehr in Richtung des Kontaktteils gedrückt, ohne dass sich die elektrische Verbindung zwischen dem Endabschnitt und dem Kontaktteil löst. Der Endabschnitt ist entlang einer Schrägrichtung unter einem schrägen Winkel zur Höhenlinie und somit schräg zum Stromschienenabschnitt erstreckt. Der schräge Winkel kann hierbei beispielsweise einen Wert zwischen 20° und 70°, vorzugsweise zwischen 30° und 45°, beispielsweise zwischen 35° und 40° aufweisen. Der schräge Winkel kann hierbei beispielsweise in Abhängigkeit einer vorbestimmten Einsteckrichtung, in die eine Leitung in einen Steckplatz des Gehäuses eingesteckt werden kann, gewählt sein. Ist ein Steckplatz beispielsweise so ausgestaltet, dass eine Leitung in eine Einsteckrichtung, die schräg zu der dem Steckplatz zugeordneten Höhenlinien erstreckt ist, in den Steckplatz eingesteckt werden kann, so ist der Endabschnitt vorzugsweise derart zu dem dem Steckplatz zugeordneten Kontaktteil erstreckt, dass die Schrägrichtung senkrecht zur Einsteckrichtung weist. Sowohl die Einsteckrichtung als auch die Schrägrichtung beschreiben somit einen schrägen Winkel zur Höhenlinie und sind rechtwinklig zueinander angeordnet. Upon a heating of the clamping device, a length change along the contour line will occur, in particular at the busbar section extending along the associated contour line, which results in the end section adjoining the busbar section moving along the contour line relative to the contact part, which owing to the mobility of the End portion to the contact part readily possible and in particular does not lead to a deterioration of the electrical connection between the end portion and the contact part. The fact that the end portion extends obliquely to the contour line, the end portion is pressed in a change in length of the busbar due to expansion when heated along the contour line rather in the direction of the contact part, without the electrical connection between the end portion and the contact part dissolves. The end portion is extended along an oblique direction at an oblique angle to the contour line and thus obliquely to the busbar section. The oblique angle can in this case, for example, have a value between 20 ° and 70 °, preferably between 30 ° and 45 °, for example between 35 ° and 40 °. The oblique angle can in this case, for example, depending on a predetermined insertion, in which a line can be inserted into a slot of the housing, be selected. If a slot is configured, for example, such that a line can be inserted into the slot in a plug-in direction that is oblique to the slot assigned to the slot, then the end section is preferably extended to the contact part associated with the slot such that the skew direction is perpendicular facing the insertion direction. Both the Insertion direction and the oblique direction thus describe an oblique angle to the contour line and are arranged at right angles to each other.
Das Kontaktteil weist in einer Ausgestaltung zwei Kontaktzapfen auf, zwischen denen der Endabschnitt der Stromschiene elektrisch kontaktierend angeordnet ist. Die Kontaktzapfen stehen beispielsweise entlang der Einsteckrichtung von einem Bügel des Kontaktteils vor und bilden zwischen sich einen Zwischenraum aus, in dem der Endabschnitt angeordnet ist. Der Endabschnitt der Stromschiene ist hierbei in dem Zwischenraum zwischen den Kontaktzapfen entlang der Höhenlinie bewegbar derart, dass bei einer Längenausdehnung der Stromschiene relativ zu dem Gehäuse der Endabschnitt entlang der Höhenlinie in den Zwischenraum zwischen den Kontaktzapfen hineingedrückt werden kann, ohne dass dadurch die elektrische Kontaktierung zwischen dem Endabschnitt und den Kontaktzapfen beeinträchtigt ist. Die Stromschiene und das Kontaktteil, die zur Potentialverteilung zwischen angeschlossenen Leitungen dienen, sind zweckmäßigerweise aus einem elektrisch leitfähigen Material, insbesondere einem Metall, beispielsweise Kupfer, hergestellt. Das Gehäuse ist demgegenüber zweckmäßigerweise aus einem elektrisch isolierenden Material, beispielsweise Kunststoff, hergestellt. In one embodiment, the contact part has two contact pins, between which the end section of the busbar is arranged in an electrically contacting manner. The contact pins protrude, for example along the insertion direction of a bracket of the contact part and form between them a gap in which the end portion is arranged. The end portion of the busbar is in this case movable in the space between the contact pins along the contour line such that at a longitudinal extension of the busbar relative to the housing, the end portion along the contour line can be pressed into the space between the contact pins, without thereby the electrical contact between the end portion and the contact pin is impaired. The busbar and the contact part, which serve to distribute the potential between connected lines, are expediently made of an electrically conductive material, in particular a metal, for example copper. In contrast, the housing is expediently made of an electrically insulating material, for example plastic.
In einer konkreten Ausgestaltung weist die Stromschiene zwei Endabschnitten auf, die an unterschiedlichen Seiten an den Stromschienenabschnitt anschließen und zur elektrischen Verbindung mit zwei Kontaktteilen zweier Steckplätze dienen. Die Stromschiene erstreckt sich mit ihrem Stromschienenabschnitt entlang einer zugeordneten Höhenlinie und dient zur Potentialverteilung zwischen beidseits der Stromschiene angeordneten Steckplätzen. In a specific embodiment, the busbar has two end sections, which connect to the busbar section on different sides and serve for the electrical connection to two contact parts of two slots. The busbar extends with its busbar section along an associated contour line and is used for potential distribution between both sides of the busbar arranged slots.
Bei einer Klemmeneinrichtung in Form einer Rangierklemme in Etagenbauform sind mehrere Stromschienen auf unterschiedlichen Höhen zur Potentialverteilung zwischen paarweise zueinander versetzten, auf unterschiedlichen Etagen befindlichen Steckplätzen angeordnet. Jede Stromschiene erstreckt sich hierbei mit ihrem Stromschienenabschnitt entlang einer zugeordneten Höhenlinie, wobei die Stromschienen in Vertikalrichtung senkrecht zu den Höhenlinien voneinander beabstandet sind. Die Stromschienen können hierbei abhängig von der genauen Bauform der Klemmeneinrichtung entlang ihrer zugeordneten Höhenlinien unterschiedliche Längen aufweisen. Das Gehäuse weist beispielsweise mindestens einen ersten Steckplatz an einer ersten Gehäuseseite der Klemmeneinrichtung und mindestens einen zweiten Steckplatz an einer anderen, zweiten Gehäuseseite der Klemmeneinrichtung auf. Beispielsweise können an der ersten Gehäuseseite mehrere erste Steckplätze und an der zweiten Gehäuseseite mehrere zweite Steckplätze vorgesehen sein, wobei jeweils ein erster Steckplatz und ein zweiter Steckplatz einer Höhenlinie zugeordnet und über eine Stromschiene zum Zwecke der Potentialverteilung elektrisch miteinander verbunden sind. In a terminal device in the form of a jumper terminal in multi-level design several busbars at different heights for potential distribution between pairs offset from each other, located on different floors slots are arranged. Each busbar extends here with its busbar section along an associated contour line, wherein the busbars are spaced apart in the vertical direction perpendicular to the contour lines. The busbars may have different lengths depending on the exact design of the terminal device along their associated contour lines. The housing has, for example, at least one first slot on a first side of the housing of the clamping device and at least one second slot on another, second side of the housing of the clamping device. For example, a plurality of first slots may be provided on the first side of the housing and a plurality of second slots on the second side of the housing, wherein in each case a first slot and a second slot are assigned to a contour line and electrically connected to one another via a busbar for the purpose of potential distribution.
Eine solche Klemmeneinrichtung in Form einer Rangierklemme kann beispielsweise eine tannenbaumähnliche Form aufweisen, bei der eine obere Stromschiene entlang der ihr zugeordneten Höhenlinie kürzer ist als eine untere Stromschiene. Such a clamping device in the form of a jumper terminal, for example, have a fir-tree-like shape, in which an upper busbar along its associated contour line is shorter than a lower busbar.
Die Stromschiene ist an dem beispielsweise aus einem elektrisch isolierenden Material hergestellten Gehäuse festgelegt, beispielsweise mit dem Gehäuse mechanisch verrastet. Die Stromschiene kann beispielsweise durch einen Rundleiter ausgebildet sein, was eine einfache, kostengünstige Fertigung der Stromschiene mit ihren schräg abgewinkelten Endabschnitten ermöglicht und eine einfache Montierbarkeit der Stromschiene an dem Gehäuse erlaubt. The busbar is fixed to the housing, for example, made of an electrically insulating material, for example mechanically latched to the housing. The busbar can be formed for example by a round conductor, which allows a simple, cost-effective production of the busbar with its obliquely angled end portions and allows easy mounting of the busbar to the housing.
Der der Erfindung zugrunde liegende Gedanke soll nachfolgend anhand der Figuren dargestellten Ausführungsbeispiele näher erläutert werden. Es zeigen: eine Seitenansicht einer Klemmeneinrichtung in Form einer Rangierklemme; eine vergrößerte Ansicht eines Ausschnitts der Ansicht gemäß Fig. 1 ; eine vergrößerte, perspektivische Ansicht der Klemmeneinrichtung im Bereich eines Kontaktteils an einem Steckplatz; und eine vergrößerte Ansicht eines Ausschnitts der Ansicht gemäß Fig. 3. The idea underlying the invention will be explained in more detail with reference to the figures illustrated embodiments. FIG. 1 shows a side view of a clamping device in the form of a jumpering clamp; FIG. an enlarged view of a section of the view of FIG. 1; an enlarged perspective view of the clamping device in the region of a contact part at a slot; and an enlarged view of a detail of the view of FIG. 3.
Fig. 1 zeigt in einer Seitenansicht eine Klemmeneinrichtung 1 in Form einer Rangierklemme, bei der an einer ersten Gehäuseseite 10 eine Mehrzahl von ersten Steckplätzen 100 und an einer zweiten Gehäuseseite 1 1 eine Mehrzahl von zweiten Steckplätzen 1 10 angeordnet sind. Die Klemmeneinrichtung 1 weist ein Gehäuse 12 aus einem elektrisch isolierenden Material, insbesondere Kunststoff, auf und kann beispielsweise nach Art einer Reihenklemme zusammen mit anderen Klemmeneinrichtungen an eine gemeinsame Tragschiene angesteckt werden, um auf diese Weise eine Klemmenanordnung mit einer Vielzahl von unterschiedlichen Klemmen zu schaffen. 1 shows a side view of a clamping device 1 in the form of a jumper terminal, in which a plurality of first slots 100 are arranged on a first housing side 10 and a plurality of second slots 110 are arranged on a second housing side 11. The clamping device 1 has a housing 12 made of an electrically insulating material, in particular plastic, and can for example, be plugged in the manner of a terminal together with other terminal devices to a common DIN rail to create in this way a terminal arrangement with a variety of different terminals.
An die Steckplätze 100, 1 10 der Klemmeneinrichtung 1 können jeweils ein oder mehrere elektrische Leitungen 3 angesteckt werden. Eine Leitung 3 kann hierbei mit einem Leitungsende 30 in eine Einsteckrichtung E1 , E2 in einen Steckplatz 100, 1 10 eingesteckt werden und gelangt bei Einstecken in einen Steckplatz 100, 1 10 in elektrischen Kontakt mit einem Kontaktteil 13 an dem jeweiligen Steckplatz 100, 1 10. At the slots 100, 1 10 of the terminal device 1 one or more electrical lines 3 can be infected in each case. A line 3 can in this case be inserted with a line end 30 in a plug-in direction E1, E2 in a slot 100, 1 10 and passes when plugged into a slot 100, 1 10 in electrical contact with a contact portion 13 at the respective slot 100, 1 10th ,
Bei der Klemmeneinrichtung 1 gemäß Fig. 1 sind die Kontaktteile 13 der Steckplätze 100 an der ersten Gehäuseseite 10 jeweils paarweise über Stromschienen 2 mit Kontaktteilen 13 der Steckplätze 1 10 an der zweiten Gehäuseseite 1 1 verbunden. Die Stromschienen 2 dienen zur Potentialverteilung zwischen den Steckplätzen 100 an der ersten Gehäuseseite 10 und den Steckplätzen 1 10 an der zweiten Gehäuseseite 1 1 , erstrecken sich entlang unterschiedlicher Höhenlinien L1 -L8 und sind - in Vertikalrichtung Z senkrecht zu den Höhenlinien L1-L8 - jeweils paarweise um einen Abstand H voneinander beabstandet. In the terminal device 1 according to FIG. 1, the contact parts 13 of the slots 100 on the first housing side 10 are each connected in pairs via busbars 2 with contact parts 13 of the slots 1 10 on the second side of the housing 1 1. The busbars 2 are used for potential distribution between the slots 100 on the first side of the housing 10 and the slots 1 10 on the second side of the housing 1 1, extending along different contour lines L1 -L8 and are - in the vertical direction Z perpendicular to the contour lines L1-L8 - respectively spaced in pairs by a distance H from each other.
Bei dem dargestellten Ausführungsbeispiel ergeben sich acht Paare von Steckplätzen 100, 1 10, die jeweils über eine Stromschiene 2 auf dem gleichen Potential liegen. In the illustrated embodiment, there are eight pairs of slots 100, 1 10, each lying on a busbar 2 at the same potential.
Eine Leitung 3 kann mit ihrem Leitungsende 30 in eine Einsteckrichtung E1 schräg zu den Höhenlinien L1 -L8 in einen Steckplatz 100 an der ersten Gehäuseseite 10 eingesteckt werden. Das Einstecken einer Leitung 3 in einen Steckplatz 1 10 an der zweiten Gehäuseseite 1 1 erfolgt hingegen - spiegelsymmetrisch zur Vertikalrichtung Z - in eine Einsteckrichtung E2, die ebenfalls schräg zu den Höhenlinien L1 -L8 gerichtet ist. Sowohl die Einsteckrichtung E1 für die erste Gehäuseseite 10 als auch die Einsteckrichtung E2 für die zweite Gehäuseseite 1 1 beschreiben einen Winkel α zu den Höhenlinien L1-L8. A line 3 can be inserted with its line end 30 in a plug-in direction E1 obliquely to the contour lines L1 -L8 in a slot 100 on the first side of the housing 10. The insertion of a line 3 in a slot 1 10 on the second side of the housing 1 1, however, takes place - mirror-symmetrical to the vertical direction Z - in a plug-in direction E2, which is also directed obliquely to the contour lines L1 -L8. Both the insertion direction E1 for the first housing side 10 and the insertion direction E2 for the second housing side 1 1 describe an angle α to the contour lines L1-L8.
Die Stromschienen 2 erstrecken sich mit einem mittleren Stromschienenabschnitt 20 entlang einer jeweils zugeordneten Höhenlinie L1 -L8. An den mittleren Stromschienenabschnitt 20, über den die Stromschiene 2 mechanisch an dem Gehäuse 12 festgelegt, beispielsweise mechanisch mit dem Gehäuse 12 verrastet ist, schließen beidseitig Endabschnitte 21 , 22 an, die eine elektrische Verbindung mit den Kontaktteilen 13 der jeweils zugeordneten Steckplätze 100, 1 10 herstellen. The busbars 2 extend with a middle busbar section 20 along a respectively assigned contour line L1-L8. To the middle busbar section 20, via which the busbar 2 mechanically fixed to the housing 12, for example, is mechanically locked to the housing 12, close on both sides end portions 21, 22, which produce an electrical connection with the contact parts 13 of the respective associated slots 100, 1 10.
Wie aus Fig. 1 in Zusammenschau mit der vergrößerten Ansicht gemäß Fig. 2 ersichtlich ist, erstreckt sich jeder Endabschnitt 21 , 22 entlang einer zugeordneten Schrägrichtung S unter einem Winkel ß schräg zu der der Stromschiene 2 zugeordneten Höhenlinie L1 -L8. Der Winkel ß kann beispielsweise zwischen 20° und 70°, insbesondere zwischen 30° und 45° liegen. Der Winkel ß, unter dem die Schrägrichtung S eines zugeordneten Endabschnitts 21 zu einer zugeordneten Höhenlinie L1 -L8 erstreckt ist, und der Winkel a, unter dem die Einsteckrichtung E1 , E2 für den jeweiligen Steckplatz 100, 1 10 zu der Höhenlinie L1-L8 erstreckt ist, ergeben in Summe 90°. Die Einsteckrichtung E1 , E2 für einen Steckplatz 100, 1 10 ist somit senkrecht zur Schrägrichtung S, entlang derer der dem Steckplatz 100, 1 10 zugeordnete Endabschnitt 21 22 erstreckt ist, gerichtet. Wie aus Fig. 2 bis Fig. 4 ersichtlich, liegt jeder Endabschnitt 21 , 22 in einem Zwischenraum 133 zwischen Kontaktzapfen 130 des Kontaktteils 13 ein. Die Kontaktzapfen 130 stehen von einem Bügel 131 entlang der zugeordneten Einsteckrichtung E1 , E2 vor und sind über den Bügel 131 elektrisch mit einer Kontaktfeder 132 kontaktiert. Bei Einstecken einer Leitung 3 in einen Steckplatz 100, 1 10 gelangt das Leitungsende 30 in elektrischen Kontakt mit der Kontaktfeder 132 und kontaktiert somit elektrisch das Kontaktteil 13. As can be seen from FIG. 1 in conjunction with the enlarged view according to FIG. 2, each end section 21, 22 extends along an associated oblique direction S at an angle β obliquely to the contour line L1-L8 assigned to the busbar 2. The angle β can be, for example, between 20 ° and 70 °, in particular between 30 ° and 45 °. The angle β at which the oblique direction S of an associated end portion 21 extends to an associated contour line L1-L8, and the angle a at which the insertion direction E1, E2 for the respective slot 100, 1 10 extends to the contour line L1-L8 is, in total, 90 °. The plug-in direction E1, E2 for a slot 100, 1 10 is thus perpendicular to the oblique direction S, along which the slot 100, 1 10 associated end portion 21 22 is directed. As can be seen from FIGS. 2 to 4, each end section 21, 22 lies in a gap 133 between contact pins 130 of the contact part 13. The contact pins 130 protrude from a bracket 131 along the associated insertion direction E1, E2 and are contacted via the bracket 131 electrically connected to a contact spring 132. When inserting a line 3 into a slot 100, 1 10, the line end 30 comes into electrical contact with the contact spring 132 and thus electrically contacts the contact part 13th
Das Kontaktteil 13 wird mechanisch an einem Halteteil 14 gehalten, das den zugeordneten Endabschnitt 21 , 22 mit Zapfen 140 umgreift und das Kontaktteil 13 mechanisch an dem zugeordneten Steckplatz 100, 1 10 festlegt. Ein Halteschenkel 141 hält die Kontaktfeder 132 in Position. The contact part 13 is mechanically held on a holding part 14, which surrounds the associated end portion 21, 22 with pin 140 and the contact part 13 mechanically at the associated slot 100, 1 10 determines. A retaining leg 141 holds the contact spring 132 in position.
Dadurch, dass die Endabschnitte 21 , 22 beidseitig des mittleren Stromschienenabschnitts 20 sich jeweils schräg unter einem Winkel ß zum Stromschienenabschnitt 20 erstrecken, wird eine zuverlässige elektrische Verbindung zwischen der Stromschiene 2 und den jeweils zugeordneten Kontaktteilen 13 bereitgestellt. Die Endabschnitte 21 , 22 sind hierbei derart in dem Zwischenraum 133 zwischen den Zapfen 130 des jeweils zugeordneten Kontaktteils 13 angeordnet, dass jeder Endabschnitt 21 , 22 entlang der Höhenlinie L1 -L8, entlang derer sich der Stromschienenabschnitt 20 erstreckt, zumindest in gewissem Maße in dem Zwischenraum 133 beweglich ist. Kommt es im Betrieb der Klemmeneinrichtung 1 zu einer Erwärmung an den unterschiedlichen Komponenten der Klemmeneinrichtung 1 , so kann es an den unterschiedlichen Komponenten aufgrund unterschiedlicherDue to the fact that the end sections 21, 22 on both sides of the middle busbar section 20 each extend obliquely at an angle β to the busbar section 20, a reliable electrical connection is provided between the busbar 2 and the respectively associated contact members 13. The end sections 21, 22 are in this case arranged in the intermediate space 133 between the pins 130 of the respective associated contact part 13, that each end portion 21, 22 along the contour line L1 -L8, along which the busbar section 20 extends, at least to some extent in the Interspace 133 is movable. If, during operation of the clamping device 1, heating occurs on the different components of the clamping device 1, it may be due to different components at the different components
Wärmeausdehnungskoeffizienten zu unterschiedlichen Längenänderungen kommen. An den Stromschienen 2 kommt es hierbei aufgrund der Längserstreckung entlang der Höhenlinien L1-L8 vorzugsweise zu einer Längenänderung entlang der Höhenlinien L1 - L8. Eine solche Längenänderung führt jedoch nicht zu einer Beeinträchtigung der elektrischen Verbindung der Stromschienen 2 mit den zugeordneten Kontaktteilen 13, weil die Endabschnitte 21 , 22 sich zumindest über einen gewissen Weg relativ zu den Kontaktteilen 13 bewegen können und bei Ausdehnung der Stromschienen 2 in die Zwischenräume 133 zwischen den Zapfen 130 der jeweils zugeordneten Kontaktteile 13 hineingedrückt werden. Thermal expansion coefficient come to different changes in length. Due to the longitudinal extent along the contour lines L1-L8, it is preferable for the busbars 2 to change in length along the contour lines L1-L8. However, such a change in length does not lead to an impairment of the electrical connection of the busbars 2 with the associated contact parts 13, because the end portions 21, 22 can move at least over a certain distance relative to the contact parts 13 and upon expansion of the busbars 2 in the interstices 133rd between the pins 130 of the respective associated contact parts 13 are pressed.
Kommt es zu einer Ausdehnung A längs entlang der Höhenlinie L1 -L8 an einer Stromschiene 2 (siehe Fig. 4), so bewegt sich ein Endabschnitt 21 , 22 zumindest geringfügig in dem Zwischenraum 133 zwischen den Zapfen 130 des zugeordneten Kontaktteils 13 und wird in den Zwischenraum 133 in Ausdehnungsrichtung A hineingedrückt, so dass sich die elektrische Verbindung zwischen dem Endabschnitt 21 , 22 und dem Kontaktteil 13 verstärkt, es in jedem Fall aber nicht zu einer Beeinträchtigung des elektrischen Übergangs zwischen dem Kontaktteil 13 und der Stromschiene 2 kommt. If there is an extension A along along the contour line L1 -L8 on a busbar 2 (see FIG. 4), then an end portion 21, 22 moves at least slightly in the gap 133 between the pin 130 of the associated contact part 13 and is in the Interspace 133 is pushed in the extension direction A, so that the electrical connection between the end portion 21, 22 and the contact part 13 amplified, but in any case does not affect the electrical transition between the contact part 13 and the busbar 2.
Wie aus Fig. 3 und 4 ersichtlich, ist die Stromschiene 2 mit ihren unterschiedlichen Abschnitten 20-22 einstückig durch einen Rundleiter ausgebildet. Die Stromschiene 2 ist, genauso wie die zugeordneten Kontaktteile 13, aus einem metallischen, elektrisch gut leitfähigen Material, beispielsweise Kupfer, gefertigt. As can be seen from FIGS. 3 and 4, the busbar 2 with its different sections 20-22 is formed in one piece by a round conductor. The busbar 2 is, as well as the associated contact parts 13, made of a metallic, electrically good conductive material, such as copper.
Der der Erfindung zugrunde liegende Gedanke ist nicht auf die vorangehend geschilderten Ausführungsbeispiele beschränkt, sondern lässt sich grundsätzlich auch bei gänzlich anders gearteten Ausführungsformen verwirklichen. Insbesondere können Stromschienen der hier beschriebenen Art auch bei anderen Klemmeneinrichtungen als Rangierklemmen eingesetzt werden. The idea underlying the invention is not limited to the above-described embodiments, but can in principle be realized even in completely different types of embodiments. In particular, busbars of the type described here can also be used in other terminal devices as jumper terminals.
Der Aufbau einer solchen Klemmeneinrichtung ist nicht notwendigerweise spiegelsymmetrisch. Zudem sind nicht notwendigerweise mehrere Stromschienen vorhanden. Grundsätzlich kann eine Klemmeneinrichtung auch nur eine einzelne Stromschiene mit einem oder mehreren Endabschnitten verwenden. The construction of such a clamping device is not necessarily mirror-symmetrical. In addition, not necessarily multiple busbars are available. In principle, a clamping device can also use only a single busbar with one or more end sections.
Bezugszeichenliste LIST OF REFERENCE NUMBERS
1 Rangierklemme 1 jumper terminal
10, 1 1 Gehäuseseite  10, 1 1 housing side
100, 1 10 Steckplatz  100, 1 10 slot
12 Gehäuse  12 housing
13 Kontaktteil  13 contact part
130 Zapfen  130 cones
131 Bügel  131 Temple
132 Kontaktfeder  132 contact spring
133 Zwischenraum  133 gap
14 Halteteil  14 holding part
140 Zapfen  140 cones
141 Halteschenkel  141 retaining leg
2 Stromschiene  2 busbar
20 Stromschienenabschnitt 20 busbar section
21 , 22 Endabschnitt 21, 22 end section
3 Leitung  3 line
30 Leitungsende α, ß Winkel  30 line end α, ß angle
A Ausdehnungsrichtung A direction of expansion
E1 , E2 EinsteckrichtungE1, E2 insertion direction
H Abstand H distance
L1 -L8 Höhenlinie  L1 -L8 contour line
S Schrägrichtung  S oblique direction
X Horizontalrichtung X horizontal direction
Z Vertikalrichtung Z vertical direction

Claims

Patentansprüche claims
Klemmeneinrichtung, mit Terminal device, with
einem Gehäuse, das mindestens einen Steckplatz aufweist,  a housing having at least one slot,
einem an dem mindestens einen Steckplatz angeordneten Kontaktteil, an das mindestens eine elektrische Leitung zum elektrischen Kontaktieren mit dem Kontaktteil ansteckbar ist, und  a contact part arranged on the at least one slot, to which at least one electrical line for electrical contacting with the contact part can be connected, and
mindestens einer an dem Gehäuse angeordneten Stromschiene, die elektrisch mit dem Kontaktteil verbunden ist und sich mit einem Stromschienenabschnitt entlang einer Höhenlinie erstreckt,  at least one busbar disposed on the housing, which is electrically connected to the contact part and extends with a busbar section along a contour line,
dadurch gekennzeichnet, dass an den Stromschienenabschnitt (20) ein Endabschnitt (21 , 22) anschließt, der sich entlang einer Schrägrichtung (S) unter einem schrägen Winkel (ß) zur Höhenlinie (L1 -L8) erstreckt und entlang der Höhenlinie (L1-L8) relativ zu dem Kontaktteil (13) bewegbar ist.  characterized in that adjoining the busbar section (20) is an end section (21, 22) extending along an oblique direction (S) at an oblique angle (β) to the contour line (L1-L8) and along the contour line (L1-L8 ) is movable relative to the contact part (13).
Klemmeneinrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass der schräge Winkel (ß) zwischen 20° und 70°, vorzugsweise zwischen 30° und 45°, beispielsweise zwischen 35° und 40°, beträgt. Clamping device according to claim 1, characterized in that the oblique angle (β) is between 20 ° and 70 °, preferably between 30 ° and 45 °, for example between 35 ° and 40 °.
Klemmeneinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass in den mindestens einen Steckplatz (100, 1 10) mindestens eine Leitung (3) entlang einer Einsteckrichtung (E1 , E2), die schräg zu der dem mindestens einen Steckplatz (100, 1 10) zugeordneten Höhenlinie (L1-L8) weist, einsteckbar ist. Clamping device according to claim 1 or 2, characterized in that in the at least one slot (100, 1 10) at least one line (3) along a plug-in direction (E1, E2) obliquely to the at least one slot (100, 1 10th ) associated elevation line (L1-L8) points, can be inserted.
Klemmeneinrichtung nach Anspruch 3, dadurch gekennzeichnet, dass der Endabschnitt (21 , 22) mit der Schrägrichtung (S) senkrecht zur Einsteckrichtung (E1 , E2) erstreckt ist. Clamping device according to claim 3, characterized in that the end portion (21, 22) with the oblique direction (S) perpendicular to the insertion direction (E1, E2) is extended.
Klemmeneinrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass das Kontaktteil (13) zwei Kontaktzapfen (130) aufweist, zwischen denen der Endabschnitt (21 , 22) der Stromschiene (2) elektrisch kontaktierend angeordnet und zu denen der Endabschnitt (21 , 22) entlang der Höhenlinie (L1-L8) bewegbar ist. Clamping device according to one of the preceding claims, characterized in that the contact part (13) has two contact pins (130), between which the end section (21, 22) of the busbar (2) is arranged to make electrical contact and to which the end section (21, 22) along the contour line (L1-L8) is movable.
Klemmeneinrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Kontaktzapfen (130) senkrecht zur Schrägrichtung (S) von einem Bügel (131 ) des Kontaktteils (13) vorstehen und zwischen sich einen Zwischenraum (133) ausbilden, in dem der Endabschnitt (21 , 22) angeordnet ist. Clamping device according to claim 5, characterized in that the contact pins (130) protrude perpendicular to the oblique direction (S) of a bracket (131) of the contact part (13) and between them form a gap (133) in which the end portion (21, 22 ) is arranged.
7. Klemmeneinrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Stromschiene (2) zwei Endabschnitte (21 , 22) aufweist, die an unterschiedlichen Seiten an den Stromschienenabschnitt (20) anschließen. 7. Clamping device according to one of the preceding claims, characterized in that the busbar (2) has two end portions (21, 22) which connect at different sides to the busbar section (20).
8. Klemmeneinrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Klemmeneinrichtung (1 ) mehrere Stromschienen (2) aufweist, die jeweils einen entlang einer Höhenlinie (L1 -L8) erstreckten Stromschienenabschnitt (20) aufweisen und in Vertikalrichtung (Z) senkrecht zu den8. Clamping device according to one of the preceding claims, characterized in that the clamping device (1) has a plurality of busbars (2) each having along a contour line (L1 -L8) extending busbar section (20) and in the vertical direction (Z) perpendicular to the
Höhenlinien (L1 -L8) voneinander beabstandet sind. Contour lines (L1 -L8) are spaced apart.
9. Klemmeneinrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass das Gehäuse (12) mindestens einen ersten Steckplatz (100) an einer ersten Gehäuseseite (10) der Klemmeneinrichtung (1 ) und mindestens einen zweiten Steckplatz (1 10) an einer anderen, zweiten Gehäuseseite (1 1 ) der Klemmeneinrichtung (1 ) aufweist. 9. Clamping device according to one of the preceding claims, characterized in that the housing (12) at least one first slot (100) on a first side of the housing (10) of the clamping device (1) and at least one second slot (1 10) to another, second housing side (1 1) of the clamping device (1).
10. Klemmeneinrichtung nach Anspruch 9, dadurch gekennzeichnet, dass das Gehäuse (12) an der ersten Gehäuseseite (10) mehrere erste Steckplätze (100) und an der zweiten Gehäuseseite (1 1 ) mehrere zweite Steckplätze (1 10) aufweist, wobei jeweils ein erster Steckplätz (100) und ein zweiter Steckplatz (1 10) einer Höhenlinie (L1-L8) zugeordnet und über eine Stromschiene (2) elektrisch miteinander verbunden sind. 10. Clamping device according to claim 9, characterized in that the housing (12) on the first housing side (10) a plurality of first slots (100) and on the second housing side (1 1) a plurality of second slots (1 10), wherein in each case one first slot (100) and a second slot (1 10) associated with a contour line (L1-L8) and are electrically connected to each other via a busbar (2).
1 1 . Klemmeneinrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Stromschiene (2) durch einen Rundleiter ausgebildet ist. 1 1. Clamping device according to one of the preceding claims, characterized in that the busbar (2) is formed by a round conductor.
EP15778270.7A 2014-10-16 2015-10-07 Terminal device having a busbar Active EP3207594B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014115048.1A DE102014115048A1 (en) 2014-10-16 2014-10-16 Terminal device with a busbar
PCT/EP2015/073152 WO2016058889A1 (en) 2014-10-16 2015-10-07 Terminal device having a busbar

Publications (2)

Publication Number Publication Date
EP3207594A1 true EP3207594A1 (en) 2017-08-23
EP3207594B1 EP3207594B1 (en) 2019-06-12

Family

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EP15778270.7A Active EP3207594B1 (en) 2014-10-16 2015-10-07 Terminal device having a busbar

Country Status (7)

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US (1) US10044119B2 (en)
EP (1) EP3207594B1 (en)
JP (1) JP6408714B2 (en)
CN (1) CN106797078B (en)
DE (1) DE102014115048A1 (en)
ES (1) ES2742437T3 (en)
WO (1) WO2016058889A1 (en)

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JP7501327B2 (en) * 2020-11-27 2024-06-18 オムロン株式会社 Terminal block

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Also Published As

Publication number Publication date
EP3207594B1 (en) 2019-06-12
WO2016058889A1 (en) 2016-04-21
JP2017530540A (en) 2017-10-12
ES2742437T3 (en) 2020-02-14
CN106797078B (en) 2020-03-13
US20170244181A1 (en) 2017-08-24
US10044119B2 (en) 2018-08-07
DE102014115048A1 (en) 2016-04-21
CN106797078A (en) 2017-05-31
JP6408714B2 (en) 2018-10-17

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