EP3275049B2 - Klemmanordnung,federkraftklemme und schaltgerät mit dieser klemmanordnung - Google Patents

Klemmanordnung,federkraftklemme und schaltgerät mit dieser klemmanordnung Download PDF

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Publication number
EP3275049B2
EP3275049B2 EP16709800.3A EP16709800A EP3275049B2 EP 3275049 B2 EP3275049 B2 EP 3275049B2 EP 16709800 A EP16709800 A EP 16709800A EP 3275049 B2 EP3275049 B2 EP 3275049B2
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EP
European Patent Office
Prior art keywords
spring
clamping
loaded
electrical
insertion direction
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.)
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Application number
EP16709800.3A
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German (de)
English (en)
French (fr)
Other versions
EP3275049B1 (de
EP3275049A1 (de
Inventor
Karsten Gerving
Ralf Thar
Sergei ECK
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Eaton Intelligent Power Ltd
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Eaton Intelligent Power Ltd
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Application filed by Eaton Intelligent Power Ltd filed Critical Eaton Intelligent Power Ltd
Priority to PL16709800T priority Critical patent/PL3275049T3/pl
Publication of EP3275049A1 publication Critical patent/EP3275049A1/de
Application granted granted Critical
Publication of EP3275049B1 publication Critical patent/EP3275049B1/de
Publication of EP3275049B2 publication Critical patent/EP3275049B2/de
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • 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
    • H01R9/2458—Electrical interconnections between 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
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
    • H01R11/07—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations being of the same type but different sizes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
    • H01R11/09—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations being identical
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/514—Bases; Cases composed as a modular blocks or assembly, i.e. composed of co-operating parts provided with contact members or holding contact members between them
    • 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
    • H01R4/4828—Spring-activating arrangements mounted on or integrally formed with the spring housing
    • H01R4/4833—Sliding arrangements, e.g. sliding button
    • 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
    • H01R4/28—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 present invention relates to a terminal arrangement with at least two spring terminals, and an electrical switching device, in particular a circuit breaker, a motor protection switch, a contactor or a relay, with such a terminal arrangement.
  • Switching devices such as circuit breakers, motor protection switches, relays or contactors are used to protect against electrical loads and/or to switch on the loads, for example motors, lighting systems, production plants or the like, preferably when large electrical loads are to be switched.
  • loads for example motors, lighting systems, production plants or the like
  • Switching devices are often installed in distribution boards. There they are often lined up interchangeably on rails or attached to installation walls provided for this purpose, in particular screwed on.
  • Electrical conductors are connected after they have been arranged in the distribution board, usually using direct plug-in terminals (push-in) from the front, i.e. on the top of the device, or using screw terminals from above or below, i.e. on the wide or long side of the switching device.
  • direct plug-in terminals two or more electrical conductors are often connected together. However, this is often not possible with electrical conductors with a large cable cross-section.
  • the publication discloses DE 102 36 790 C1 a switching device with a plurality of connection contacts for connecting electrical conductors, in which at least one of the connection contacts has a connection for a second electrical conductor.
  • the connection is designed as a central hole for receiving a plug contact.
  • the pamphlet DE 10 2014 113 086 A1 discloses a series connection device with at least two connection modules, which have a terminal cage and a common busbar, which are each made of a flat strip, so that the terminal cage is made of a highly conductive material, and the connection modules and the series connection device can still be produced inexpensively.
  • the pamphlet DE 203 13 855 U1 discloses a connecting device with a busbar on which a plurality of spring legs for connecting electrical conductors are arranged. In these publications, the connection modules or the spring legs can be arranged at an angle to one another.
  • the publication WAGO Main Catalog Terminal Block Systems Volume 1 2012/2013 discloses a series connection device with a large number of push-in terminals arranged in rows at an angle to one another.
  • the DE 296 06 759 U1 discloses a multi-part housing for low-voltage switching devices for accommodating screw terminals whose connectors are arranged in the area of stepped gradations.
  • WO 2009/141084 A1 relates to a terminal arrangement with two spring terminals that can be contained in an electrical switching device. Both spring clamps each have a clamping cage and a spring for clamping an electrical conductor to a clamping wall of the respective clamping cage. An operating element is provided in each case for releasing an electrical conductor inserted in one of the spring-loaded terminals.
  • the electrical conductor can be inserted in a first direction of insertion into the first spring-loaded terminal and in a second direction of insertion into the second spring-loaded terminal, with the directions of insertion being arranged at an angle that is greater than 0°, for example at a right angle to one another.
  • WO2014/075967 discloses a spring clamp according to the preamble of claim 9.
  • EP2752944 discloses a clamp assembly according to the preamble of claim 1.
  • the object of the present invention is to create an electrical switching device which, with the same or reduced space requirement, is further improved in terms of its operability and connection options, and in particular enables connection options for at least two or more electrical conductors with a large cable cross section, is easy to handle, in particular with regard to the assembly in a cramped distribution board, and which is also inexpensive to produce.
  • the task is solved with a clamp arrangement that has two spring clamps.
  • Both spring-loaded terminals each have a terminal cage and a spring, with an electrical conductor being able to be pushed into each of the two terminal cages in an insertion direction and clamped between it and the spring.
  • One of the two spring clamps, its clamp cage and its spring are described below referred to as the first spring clamp, the first clamp cage and the first spring.
  • the other of the two spring clamps, its clamp cage and its spring are referred to below as the second spring clamp, second clamp cage and second spring.
  • the first direction of insertion of the first spring-loaded terminal and the second direction of insertion of the second spring-loaded terminal are arranged at an angle to one another that is greater than 0°. This allows the operator to choose between two operating directions.
  • the clamp arrangement is characterized in that the first insertion direction of the first spring-loaded clamp and the second insertion direction of the second spring-loaded clamp are arranged at right angles or opposite one another, for example opposite one another on an imaginary line of symmetry.
  • Two electrical conductors can be inserted independently of one another into this clamping arrangement, namely the first electrical conductor in the first spring-loaded terminal and the second electrical conductor in the second spring-loaded terminal.
  • the electrical conductor inserted into the first spring-loaded terminal and the electrical conductor inserted into the second spring-loaded terminal do not interfere with one another, since their position is arranged separately from one another.
  • both electrical conductors with a small cable cross-section and those with a large cable cross-section can be used.
  • electrical conductors with wire end sleeves with plastic collars can also be used.
  • the clamping arrangement enables spatial separation, which is advantageous for the clarity and ease of connection of the electrical conductors.
  • the clamping arrangement allows only one of the two spring-loaded terminals to be used, with the insertion direction then being selectable according to the spatial conditions, and an electrical conductor then either in the first insertion direction into the first spring-loaded terminal, or in the second insertion direction into the second spring-loaded terminal and in the Angle to the first insertion direction is inserted.
  • either a larger number of electrical conductors can be connected to the clamping arrangement, namely at least two or, if two electrical conductors are crimped twice, even more, or if the two spring-loaded terminals are used for only one electrical conductor each, electrical conductors with a larger cable cross-section can be used, or If only one of the two spring clamps is used, the direction of insertion can be selected and the handling of the clamp arrangement is therefore simplified, particularly in cramped spatial conditions.
  • the clamping arrangement is further characterized in that the two spring-loaded terminals are arranged one behind the other in the first direction of insertion or in the second direction of insertion of the electrical conductor. This enables a nested, and thus space-saving, arrangement of the two spring-loaded terminals. It is particularly preferred that the spring clamps at least partially overlap or are even arranged one above the other.
  • the two spring clamps are arranged at right angles. These embodiments can be manufactured in a structurally simple manner and require little installation space.
  • the spring clamps are also preferably arranged on opposite sides of a busbar.
  • the clamping arrangement comprises a busbar which is electrically conductively connected to the two clamping cages. At least two electrical conductors can be connected to the same busbar.
  • the busbar is therefore a common busbar.
  • the first clamping cage of the first spring-loaded terminal and the second clamping cage of the second spring-loaded terminal are preferably arranged on opposite sides of the busbar.
  • the two clamping cages of the spring terminals are manufactured in one piece with the busbar.
  • the clamping cages and the busbar can be produced inexpensively as stamped and bent parts from a flat strip material.
  • the terminal cages of the spring-loaded terminals are integrally connected to the busbar.
  • both spring clamps each have a control element for opening the spring.
  • the operating elements can each be displaced in the direction of insertion associated with their spring-loaded terminal.
  • at least one of the operating elements can also be actuated at the angle to the insertion direction associated with its spring-loaded terminal.
  • the operating element of this spring-loaded terminal can therefore be actuated both in the first and in the second direction of insertion. This spring-loaded terminal therefore enables the operator to handle it very flexibly, even when releasing the electrical conductor inserted into this spring-loaded terminal.
  • the clamping arrangement also has a housing.
  • the housing is preferably designed as an insulating material housing and is preferably made of a plastic.
  • An insertion opening for inserting the electrical conductor and an actuating opening for actuating the operating element, in particular for inserting the tool, are provided in the housing for each of the two spring-loaded terminals.
  • One clamping point of the spring clamps is accessible from the outside through the insertion openings.
  • the operating element of the spring-loaded terminals is accessible from the outside through the actuating openings.
  • the insertion opening and the actuating opening of the same spring clamp are arranged parallel to one another and at the right angle to the insertion opening and the actuating opening of the other spring clamp.
  • the spring clamps are arranged at right angles to one another on opposite sides of the busbar.
  • spring-loaded terminals with essentially the same structure can be used.
  • the spring-loaded terminals are very particularly preferably arranged on opposite sides of the common busbar, in particular one above the other, at right angles to one another.
  • the housing for this spring-loaded terminal also has the second actuating opening, which extends at an angle to the insertion opening assigned to its spring-loaded terminal.
  • the same springs and/or operating elements can be used for both spring terminals.
  • the variety of components is small and the costs for the clamping arrangement are lower compared to a clamping arrangement with a greater variety of components.
  • the operating element in the first insertion direction preferably has a first means, and to actuate it at right angles to the insertion direction, it has a second means.
  • the means are preferably designed to be actuated with a tool.
  • a means for manually actuating the operating element in at least one or both directions is also preferred.
  • the first means is preferably designed as a recess, in particular a notch, and is provided for engaging the tool.
  • the second means is preferably designed as an integral part, in particular an edge or a web, and is provided for applying the tool.
  • the tool is either inserted into the notch and the operating element is then pushed in the direction of insertion with the tool.
  • the tool is placed against the projection at the angle to the direction of insertion and the operating element is then displaced in the direction of insertion by a lever movement of the tool.
  • a screwdriver is preferably used as a tool for this. Due to the lever movement, the effort required for this is very low.
  • the object is also achieved with a switching device, in particular a circuit breaker, a motor protection switch, a contactor or a relay, with at least one such terminal arrangement.
  • the switching device has two such terminal arrangements.
  • the two clamping arrangements are arranged mirror-symmetrically to a mirror plane, which is arranged in particular in the middle of the switching device.
  • the clamping arrangement or the clamping arrangements enable the connection of two electrical conductors, electrical conductors with a larger cable cross-section, and/or easy handling by choosing the spring-loaded terminal that is easier to access/operate.
  • the switching device preferably has an electrical assembly that is provided to protect an electrical load.
  • An electrical network for example an energy network, can be connected to the switching device.
  • an electrical switching device is also preferred to which another network, for example a communication network, can be connected.
  • the electrical switching device has an incoming electrical connection and an outgoing electrical connection for at least one electrical network line of the network, preferably for all electrical network lines of the network. It is preferred that the electrical assembly is arranged between the incoming and the outgoing electrical connection. It is preferably designed as or includes a switch for opening or closing an electrical connection between the incoming and the outgoing connection.
  • the incoming connection and/or the outgoing connection are designed as such a clamping arrangement. Both the incoming connection and the outgoing connection are particularly preferably designed as such a clamping arrangement.
  • the incoming connection and the outgoing connection of the same network line are very particularly preferably arranged mirror-symmetrically to the mirror plane.
  • the switching device comprises an upper housing part and a lower housing part, the terminal arrangement or the terminal arrangements being arranged in the upper housing part and the electrical assembly in the lower housing part.
  • the terminal arrangements of this switching device are also easily accessible for the operator.
  • the electrical switching device is very easy to handle in the cramped interior of an installation distribution board, since it enables one or two electrical conductors to be connected in the first and/or in the second insertion direction. If only a single electrical conductor is to be connected to the incoming or outgoing connection, the operator has the choice of connecting it in the direction of insertion or at an angle to the direction of insertion, depending on which direction of insertion the operator finds easier to handle. Since the terminal arrangements for the incoming and/or outgoing connection each have two spring-loaded terminals, electrical conductors with a large cable cross-section can be connected to the electrical switching device. Despite this, the electrical switching device requires only a small overall width due to the arrangement of the spring-loaded terminals on opposite sides of the busbar. Furthermore, it is also easy to open the spring of the spring-loaded terminals and therefore to release the conductors jammed in them. This applies all the more to a spring-loaded terminal with an operating element that can be operated both through the first and through the second actuating opening.
  • the electrical switching devices 1 of 1 and 2 each have a housing 11 with a housing upper part 18, in which the connection technology for connecting electrical conductors 3 to the switching devices 1 are arranged, and a housing lower part 19, in each of which an electrical assembly (not shown) is arranged.
  • the switching devices 1 can be arranged in a row on a busbar (not shown) in a rowing direction 23 by means of joining means 161, or can be arranged on an installation wall (not shown) by means of fastening means (not shown). Examples are in 1(a) shown for through holes 162 for screwing the electrical switching device 1.
  • the invention is first based on the electrical switching device 1 of 1 described. Subsequently, the differences of the embodiment of the 2 to 1 received.
  • the switching device 1 has an incoming connection 8 I and an outgoing connection 8 II for a plurality of network lines 33 , here for three network lines.
  • the incoming and outgoing connections 8 I , 8 II are arranged mirror-symmetrically to a fictitious mirror plane S running in the middle of the switching device 1 .
  • the mirror plane S separates the electrical switching device 1 into a first device part I with the incoming connections 8 I and a second device part II with the outgoing connections 8 II .
  • the incoming connections 8 I and the outgoing connections 8 II are each arranged in modular connection housings 12 which can be snapped into the housing 11 of the electrical switching device 1 .
  • locking means 121 see Fig. Fig.1(b) provided, which in counter-locking means 111 (s. Fig.1(b) ) of the housing 11 engage.
  • the incoming and outgoing connections 8 I , 8 II each comprise a clamping arrangement 8 (see Fig. Fig. 1(e) ) with two spring terminals 81, 82 (see Fig. 1 (e) ), In each of which an electrical conductor 3 can be inserted.
  • two spring-loaded terminals 81, 82 are therefore available, via which the network line 33 can be connected to the electrical switching device 1.
  • the terminal arrangements 8 have a connection housing 12 in which an insertion opening 131 , 132 for inserting the electrical conductors 3 is provided for each spring-loaded terminal 81 , 82 .
  • the clamping arrangements 8 have an actuating opening 141, 142 for each spring force clamp 81, 82, which is arranged parallel to the insertion opening 131, 132.
  • the clamping arrangements 8 each have a second actuating opening 143 for one of the spring-loaded terminals 81, 82, namely here for the second spring-loaded terminal 82.
  • Fig.1(b) shows a section through the housing upper part 18. Visible is the mirror-symmetrical arrangement of the incoming and outgoing connections 8 1 , 8 II .
  • the connection housings 12 of the terminal arrangements 8 are here latched with their latching means 121 on counter-latching means 111 of the housing 11 .
  • FIG.1(b) electrical conductors 3 which have an electrically conductive core 30, which are surrounded by an insulating sheath 31.
  • a stripped end 32 of the electrical conductors 3 is clamped in each of the clamping points K1, K2.
  • 1(c) shows a section through a single terminal arrangement 8 of the electrical switching device 1 arranged in the connection housing 12 in a perspective view, 1(d) in a side view.
  • Fig. 1(e)-(g) the terminal arrangement 8 is shown without the connection housing 12 .
  • the clamp assembly 8 is in the following based on the Fig. 1 (c) - (g) described. It has the two spring-loaded terminals 81, 82, which are referred to below as the first spring-loaded terminal 81 and as the second spring-loaded terminal 82. Both spring terminals 81, 82 each have a clamping cage 511, 512 and a spring 611, 612, which are each arranged in the clamping cage 511, 512.
  • the clamping cage of the first spring clamp 81 is referred to below as the first clamping cage 511 .
  • the spring of the first spring force clamp 81 is referred to below as the first spring 611 .
  • An electrical conductor 3 can be pushed into the first clamping cage 511 in an insertion direction, hereinafter the first insertion direction 21 . It is pushed against the force of the first spring 611 into a first clamping point K1 between the first clamping cage 511 and the first spring 611, and clamped with the force of the first spring 611 in the first clamping point K1.
  • the clamping cage of the second spring clamp 82 is referred to below as the second clamping cage 512 .
  • the spring of the second spring force clamp 82 is referred to below as the second spring 612 .
  • An electrical conductor 3 can be pushed into the second clamping cage 512 in a second insertion direction 22 , which is arranged at an angle 9 to the first insertion direction 21 . It is pushed against the force of the second spring 612 into a second clamping point K2 between the second clamping cage 512 and the second spring 612, and clamped with the force of the second spring 612 in the second clamping point K2. It is visible that the angle 9 is approximately a right angle here.
  • the first and the second spring force clamp 81, 82 are arranged one behind the other in the first insertion direction 21.
  • the clamping arrangement 8 has a busbar 50 which is electrically connected to the two clamping cages 511, 512.
  • the first clamping cage 511 of the first spring-loaded terminal 81 and the second clamping cage 512 of the second spring-loaded terminal 82 are arranged on opposite sides of the busbar 50 .
  • the two spring clamps 81, 82 are arranged one above the other in the first insertion direction 21.
  • the clamping arrangement 8 is very narrow.
  • the clamping cages 511, 512 each have a retaining wall 51 (see Fig. Fig. 1 (f) ) and a clamping wall 52 (s. Fig. 1 (f) ) on. Furthermore, the springs 611, 612 each have a holding leg 61 (see Fig. Figure 1(c) ) and a clamping leg 62 (see Figure 1(c) ) on. They are approximately V-shaped. In addition, they are each mounted around a pin-shaped bearing 171, 172 (see Fig. Fig.1(b) , (c) ) stored. The springs 611, 612 are supported on the retaining wall 51 of their clamping cage 511, 512 when an electrical conductor 3 is clamped in one of the clamping points K1, K2.
  • an open end 620 of the clamping leg 62 of the spring 611, 612 of the spring clamp 81, 82 is preferably in contact with the clamping wall 52 of the clamping cage 511, 512 of the spring clamp 81, 82.
  • a clamping state K in which the electrical conductor 3 is pushed into one of the spring-loaded terminals 81, 82, it is held between the clamping wall 52 of the clamping cage 511, 512 of this spring-loaded terminal 81, 82 and the open end 620 (see Fig.
  • FIG.1(b) shows the spring terminals in the first housing part I 81, 82 each with an electrical conductor 3 inserted therein.
  • the electrical conductors 3 are shown there in the clamped state K.
  • the spring clamps 81, 82 are shown here, but each time the electrical conductors 3 are released.
  • the two spring-loaded terminals 81, 82 each have an operating element 711, 712 (see Fig. Fig. 1 (d) ) on.
  • the operating element 711, 712 With the operating element 711, 712, the spring 611, 612 of the spring clamp 81, 82 is opened.
  • the operating element 711 of the first spring clamp 81 is also referred to below as the first operating element.
  • the operating element 712 of the second spring-loaded terminal 82 is also referred to below as the second operating element.
  • the operating elements 711, 712 can each be actuated in the insertion direction 21, 22 assigned to their spring force clamp 81, 82.
  • the operating elements 711, 712 are each accessible through their actuating openings 141, 142. You are then in the insertion direction 21, 22 of their spring clamp 81, 82 slidably.
  • the clamping leg 62 of their spring 611, 612 is pressed in this direction of insertion 21, 22, so that the clamping point K1, K2 of their spring-loaded terminal 81, 82 opens. In doing so, it is pivoted about its bearing 171 , 172 .
  • An electrical conductor 3 inserted into one of the spring-loaded terminals 81, 82 can then be removed from this spring-loaded terminal 81, 82 by pulling it back against the insertion direction 21, 22 associated with the spring-loaded terminal 81, 82.
  • first means 70 which is designed to be actuated with a tool 4, here a screwdriver.
  • the first means 70 is designed here as a notch and is provided for engaging the tool 4 . It is located at an operating end 74 located opposite the operating end 72 .
  • the tool 4 is pushed into the notch 70 in the insertion direction 21, 22 of the spring clamp 81, 82 and the operating element 711, 712 is actuated by moving the tool 4 in this insertion direction 21, 22.
  • Fig. 1 (d) shows this for the first spring clamp 81.
  • the operating elements 711, 712 have a second means 71 here.
  • the second means 71 is designed as an integral part, here as a web.
  • the web 71 is provided for applying the tool 4 and for moving the operating element 711, 712 in the direction of insertion of its spring clamp 81, 82.
  • the web 71 can only be used with the second spring-loaded terminal 82 (see Fig. Fig. 1 (d) ).
  • This has the second actuating opening 143 .
  • the second actuating opening 143 of the second spring-loaded terminal 82 is arranged at right angles 9 to the first actuating opening 142 of the second spring-loaded terminal 82 , which extends parallel to the second insertion direction 22 .
  • the second actuating opening 143 therefore extends in the first insertion direction 21. It is wide enough so that the tool 4 can be placed against the web 71 at the angle 9 to the second insertion direction 22, and therefore in the first insertion direction 21.
  • the second operating element 712 can therefore be actuated through its first operating opening 142 at the angle 9 to the first insertion direction 21 . It can thus be actuated in the second insertion direction 22 through its first actuating opening 142 . In addition, it can be actuated through the second actuation opening 143 in the first insertion direction 21 .
  • the operating element 712 can be displaced in the second insertion direction 22 by a lever movement.
  • the tool 4 is rotated in a direction of rotation 24 about an axis of rotation 25 which extends transversely to the first and to the second insertion direction 21, 22 in an extension direction 23.
  • the axis of rotation 25 is arranged at a contact point P of the tool 4 on the connection housing 12, namely at one end 144 of the second actuating opening 143.
  • the second spring clamp 82 is therefore both in the second direction of insertion 22, and in the right angle 9 to the second direction of insertion 22, d. H. in the first insertion direction 21, operable.
  • the operating elements 711, 712 In order to prevent the operating elements 711, 712 from being pushed out of their spring clamp 81, 82 by the spring 611, 612, in particular by the clamping leg 62 of the spring 611, 612, the operating elements 711, 712 each have an edge 73 which is a stop 15 of the connection housing 12 interacts. In the basic state G, the edge 73 of the operating elements 711, 712 is pressed against the stop 15 with the spring 611, 612 of their spring clamp 81, 82, so that they cannot slide out of their actuating opening 141, 142.
  • connection housing 12 of the two device parts I, II are each grouped so that each of the connection housing 12 includes all incoming or outgoing connections 8 I , 8 II .
  • the electrical switching device 1 of 2 although a total of five incoming and five outgoing connections 8 I , 8 II .
  • the connection housing 12 of the electrical switching device 1 of 2 are not grouped and each have only a single incoming or outgoing port 8 I , 8 II .
  • the electrical switching devices differ 1 and 2 in the clamp assembly 8.
  • the first clamp cage 511 and the second clamp cage 512 of the clamp assembly 8 of 1 are made in one piece with the busbar 50 .
  • the first clamp cage 511 and the second clamp cage 512 of the clamp assembly 8 of 2 materially connected, in particular by welding, to the conductor rail 50.
  • the clamping cages 51, 52 of this clamping arrangement 8 are manufactured identically and are only rotated by the angle 9 to one another on the opposite side Lying sides of the busbar 50 attached.
  • the controls 711, 712 of the terminal assemblies 8 of 2 in each case no additional second means 71 in order to actuate them through the second actuating opening 143 .
  • the tool 4 is placed on the operating end 74 for this purpose.
  • the operating end 74 also has an edge that can be used to move the operating elements 711, 712.
  • the second spring-loaded clamp 82 has two actuating openings 142, 143 for actuating its operating element 712 (see Fig. Figure 2(b) ).
  • the second actuating opening 143 of the second spring-loaded terminal 82 widens for actuation.
  • the tool 4 can be inserted through the second actuating opening 143 behind the operating element 712 of the second spring-loaded terminal 82 .
  • the operating element 712 of the incoming connections 8 I in or of the outgoing connections 8 II can be displaced counter to the second insertion direction 22 as a result of the lever movement.
  • the clamping leg 62 of the spring 612 is pressed in or against the second insertion direction 22, so that the second clamping point K2 opens.
  • connection technology from above or below that is usually possible with screw connections
  • connection technology from the front that is usually used with spring-loaded terminals 8 .
  • FIG. 3 shows a further embodiment of a clamping arrangement 8 for an electrical switching device 1.
  • This clamping arrangement 8 also has two spring terminals 81, 82. However, these are arranged at an angle 9 of 180° to one another. In the embodiment shown, they are also arranged in alignment one above the other. The spring clamps can therefore be actuated in opposite directions here.
  • electrical conductors can be inserted into the spring-loaded terminals in opposite insertion directions 21, 22.
  • the insertion directions 21, 22 are arranged opposite to one another.
  • the spring clamps 81, 82 each have a spring 611, 612 and a clamping cage 511, 512.
  • the retaining wall 51 and the clamping wall 52 of the clamping cages 511, 512 are visible here.
  • the clamping arrangement 8 has a busbar 50 .
  • the busbar 50 and the terminal cages 511, 512 of the spring clamps 81, 82 are made in one piece here.
  • the spring-loaded terminals 81, 82 are arranged mirror-symmetrically to the common busbar 50.
  • the first spring clamp 81 has the first insertion opening 131 .
  • the electrical conductor 3 can be inserted into the first spring-loaded terminal 81 through the first insertion opening 131 in the first insertion direction 21 .
  • the first spring force clamp 81 has the first actuation opening 141 .
  • the actuating tool 4 can be inserted into the first spring-loaded terminal 81 through the first actuating opening 141 in the first actuating direction, which extends parallel to the first insertion direction 21 .
  • the first spring-loaded terminal 81 has the first operating element 711 which is provided for releasing the electrical conductor 3 inserted into the first spring-loaded terminal 81 .
  • the first operating element 711 is accessible through the first operating opening 141 .
  • it can be displaced, in particular with the actuating tool 4, in the first actuating direction, that is to say parallel to the first insertion direction 21.
  • the clamping leg 61 of the first spring 611 is pressed with the first operating element 711 in the first insertion direction 21 .
  • the clamping leg 61 of the first spring 611 is pivoted about the first bearing 171 . This opens the first clamping point K1.
  • An electrical conductor 3 inserted into the first spring-loaded terminal 81 can then be removed by pulling it back against the first insertion direction 21 .
  • the second spring force clamp 82 has the second insertion opening 132 .
  • the electrical conductor 3 ′ can be inserted into the second spring-loaded terminal 82 in the second insertion direction 22 , which here extends counter to the first insertion opening 21 .
  • the second spring force clamp 82 has the second actuating opening 142 .
  • the actuating tool 4 ′ can be inserted into the second spring-loaded terminal 82 through the second actuating opening 142 in the second actuating direction, ie counter to the first insertion direction 21 .
  • the second spring-loaded terminal 82 has a second operating element 712 which is provided for releasing an electrical conductor 3 ′ inserted into the second spring-loaded terminal 82 .
  • the second operating element 712 is accessible through the second actuation opening 142 .
  • it can be displaced, in particular with the actuating tool 4 ′, in the second actuating direction, ie parallel to the second insertion direction 22 and counter to the first insertion direction 21 .
  • the clamping leg 61 ′ of the second spring 612 is pressed with the second operating element 712 in the second insertion direction 22 .
  • the clamping leg 61 'of the second spring 612 to the second bearing 172 pivots. This opens the second clamping point K2.
  • An electrical conductor 3 inserted into the second spring-loaded terminal 82 can then be removed by pulling it back against the second insertion direction 22 .
  • the insertion and actuation directions 21, 22 of the two spring clamps 81, 82 each extend in opposite directions.
  • the connection and disconnection of the electrical conductors 3 and 3' can therefore take place in opposite directions.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Clamps And Clips (AREA)
EP16709800.3A 2015-03-23 2016-03-14 Klemmanordnung,federkraftklemme und schaltgerät mit dieser klemmanordnung Active EP3275049B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16709800T PL3275049T3 (pl) 2015-03-23 2016-03-14 Układ zaciskowy, zacisk sprężynowy i łącznik z tym układem zaciskowym

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015104268.1A DE102015104268A1 (de) 2015-03-23 2015-03-23 Elektrisches Schaltgerät mit elektrischen Klemmanschlüssen
PCT/EP2016/055447 WO2016150743A1 (de) 2015-03-23 2016-03-14 Elektrisches schaltgerät mit elektrischen klemmanschlüssen

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EP3275049A1 EP3275049A1 (de) 2018-01-31
EP3275049B1 EP3275049B1 (de) 2020-07-29
EP3275049B2 true EP3275049B2 (de) 2023-08-30

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US (1) US10355377B2 (pl)
EP (1) EP3275049B2 (pl)
CN (1) CN107408766B (pl)
DE (1) DE102015104268A1 (pl)
PL (1) PL3275049T3 (pl)
WO (1) WO2016150743A1 (pl)

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WO2019048067A1 (de) * 2017-09-11 2019-03-14 Comatreleco Ag Relaissockel
JP6624241B2 (ja) * 2018-06-13 2019-12-25 富士電機機器制御株式会社 配線用接続器具、電気機器及び回路遮断器
WO2021075056A1 (ja) * 2019-10-18 2021-04-22 三菱電機株式会社 接点開閉器及び接続補助ピン
CN113972506B (zh) * 2020-07-24 2022-12-16 菲尼克斯亚太电气（南京）有限公司 一种带有操作声音反馈的接线端子
DE102021111100B4 (de) 2021-04-29 2023-10-12 Weidmüller Interface GmbH & Co. KG Anschlussvorrichtung und Verfahren zum Montieren einer solchen Anschlussvorrichtung

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Also Published As

Publication number Publication date
WO2016150743A1 (de) 2016-09-29
PL3275049T3 (pl) 2021-03-08
EP3275049B1 (de) 2020-07-29
DE102015104268A1 (de) 2016-09-29
CN107408766B (zh) 2021-03-26
EP3275049A1 (de) 2018-01-31
US20180131106A1 (en) 2018-05-10
CN107408766A (zh) 2017-11-28
US10355377B2 (en) 2019-07-16

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