EP2107660B1 - Connecteur de rails conducteurs - Google Patents

Connecteur de rails conducteurs Download PDF

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Publication number
EP2107660B1
EP2107660B1 EP09002863.0A EP09002863A EP2107660B1 EP 2107660 B1 EP2107660 B1 EP 2107660B1 EP 09002863 A EP09002863 A EP 09002863A EP 2107660 B1 EP2107660 B1 EP 2107660B1
Authority
EP
European Patent Office
Prior art keywords
legs
busbar
recess
busbars
busbar connector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP09002863.0A
Other languages
German (de)
English (en)
Other versions
EP2107660A2 (fr
EP2107660A3 (fr
Inventor
Rüdiger Kassühlke
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.)
Gustav Hensel GmbH and Co KG
Original Assignee
Gustav Hensel 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 Gustav Hensel GmbH and Co KG filed Critical Gustav Hensel GmbH and Co KG
Publication of EP2107660A2 publication Critical patent/EP2107660A2/fr
Publication of EP2107660A3 publication Critical patent/EP2107660A3/fr
Application granted granted Critical
Publication of EP2107660B1 publication Critical patent/EP2107660B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
    • H01R25/14—Rails or bus-bars constructed so that the counterparts can be connected thereto at any point along their length
    • H01R25/145—Details, e.g. end pieces or joints

Definitions

  • the present invention relates to a busbar connector with an electrically conductive body member having at least two fork-shaped, a recess for receiving a busbar-forming legs, wherein the legs are biased by a spring element.
  • Busbar connectors are devices that are required to electrically connect busbars, which are used in particular in the field of electrical power supply, so that the electrical energy can be conveyed to the intended consumer points or collected by generating points. Bus bars are therefore widely used in power supply, especially when large currents in the range of about 50 amps are used upwards. Busbars have in addition to the electrical conductivity to a suitable mechanical strength, so that the influence of mechanical forces, such as may occur, for example in a short circuit, can be easily absorbed without the busbar loses its intended function. In addition, busbars are thermally highly resilient, so that they can continue to perform their intended function essentially even in thermally exposed areas or under overload with appropriate heating. Busbars are often formed of metals such as aluminum, copper, alloys thereof, optionally with other metals and the like.
  • Busbars find a wide range of application in switchgear, especially in medium-voltage and low-voltage switchgear.
  • a generic busbar connector is a so-called busbar connector from the DE 201 14 580 U1 known.
  • the busbar connector described here is used for electrically connecting busbars of juxtaposed electrical distributors, for which purpose a connecting bridge is provided, the contacting of which is effected at the end pieces of the busbars by means of pairs trained as plug contacts contact points.
  • connection and connection terminal for busbars is described here.
  • the terminal is used for mounting on busbars, whereby the busbar is clasped on both sides.
  • the clamp housing consists of two pivotally interconnected clamping parts whose clamping legs engage around the busbar laterally.
  • the spreadable clamping legs are under the action of a tension spring, which is mounted with its two ends in the clamping parts and which bears against a pressure plate with threaded pin. This threaded pin passes through a threaded plate which is arranged within the clamping housing and which locks the two clamping parts laterally.
  • a shield terminal for clamping a cable with an exposed shield on a busbar is from the DE 197 16 762 A1 known.
  • the shield connection terminal has four clamping legs, all of which are to be fastened to one and the same busbar.
  • the four clamping legs are held by a guide pressure piece, which is displaceable relative to the clamping legs. Depending on the displacement position of the guide pressure piece, the clamping legs are spread more or less wide.
  • the DE 197 55 513 A1 relates to a Dehnverbinder for successive busbars of a conductor rail.
  • the DE 195 13 063 A1 relates to a terminal, in particular for mounting on busbars of a distributor of the electrical installation.
  • a further conductor can be clamped, so that an electrically conductive connection between the busbar and the conductor can be formed.
  • a connection of two busbars with each other is not discussed.
  • busbars An important point in the use of busbars lies in the connection or electrical contact selbiger to form corresponding nodes can.
  • the busbars are usually not provided with an electrical insulation, so that an electrical contact between the rails can be made by the clamping connection, so that energy distribution is made possible.
  • the electrical insulation of busbars is usually done by air gaps and electrically insulating brackets.
  • Another possibility of the connection is to arrange terminals of the busbars opposite and electrically connected by means of a coupling piece which is screwed to the end points of the busbars.
  • connection techniques partially have a large footprint and at the same time require a high assembly cost.
  • This disadvantage is also liable to the above-described busbar connector according to the DE 201 14 580 U1 and the above-described connection and connection terminal after the DE 42 35 444 C1 on. So it turns out with the busbar connector after the DE 201 14 580 U1 as particularly disadvantageous in that contact points designed as plug contacts are provided here. These are relatively expensive to assemble and are also prone to external influences such. B. Contact corrosion causing influences. In addition, a malfunction is possible in a disadvantageous manner. The from the DE 42 35 444 C1 known construction also proves to be expensive to assemble or disassemble.
  • the invention has set itself the task of reducing the space required for the connection point and an assembly effort.
  • the busbar connector can simply be plugged onto the busbar.
  • the legs of the busbar connector are inventively formed integrally with the body member of the busbar connector, resulting in an overall compact design.
  • a simple production and handling is possible, since the entire body element and leg formed body of the busbar connector represents a single, one-piece unit.
  • the consisting of body member and leg body of the busbar connector can be made in a very simple way.
  • a sheet of a suitable metal such as copper, aluminum and / or the like can serve.
  • This flat material can then be formed by a simple punching process with subsequent bending forming process to final body.
  • the geometry of the legs is included Preferably designed such that in the case of intended use already a certain clamping effect by bias from the legs emanates, so that even in the case of the unlikely failure of a spring element, a still secure hold of the power connector recorded busbars is reached. In this way, a particularly high level of operational reliability is achieved.
  • Another advantage of the embodiment according to the invention is that, in contrast to previously known from the prior art constructions is little susceptible to interference.
  • the construction of the invention consists of comparatively few parts, which already provides the reason for reliability and a low susceptibility to interference.
  • the overall structure of the power connector according to the invention is not very complicated, so that also by design, a low susceptibility is guaranteed.
  • the busbar connector may have cable terminals, for example to form a voltage tap. But it can also be used for the electrical connection of multiple busbars.
  • the busbar connector may also have a mounting position and a contacting position. In the contacting position, the bus bar connector is in electrical contact with the bus bar. In the mounting position, the busbar can be easily introduced into the recess of the busbar connector without much mechanical force.
  • the busbar connector is preferably formed of the same material as the busbar and at least in the region of the recess electrically conductive, so that a good electrical contact with the busbar can be made. In the simplest case, the busbar connector is formed entirely of a metal such as copper, aluminum, alloys thereof, or the like, and is electrically conductive in its entirety on its surface.
  • the busbar connector is at least partially provided with an electrical insulation, so that the safety during assembly and operation can be improved.
  • the recess is preferably formed slightly larger in size than the busbar to be contacted.
  • the recess is reduced in such a way that good electrical contact with the busbar can be produced.
  • the spring element can be interchangeably arranged on the busbar connector in order to be able to set an individually favorable contact force for the respective connection.
  • the spring element is preferably formed from a spring steel. Particularly preferred is a material for the spring element, which reduces or avoids a contact corrosion with the body member and / or the legs. Of course, barrier layers, coatings and / or the like may be provided to suppress the contact corrosion.
  • a texture, projections, recesses, mixtures thereof or the like may be provided in a contacting region of the recess, with which a reliable contact, which can be electrically high in electrical current, can be achieved.
  • the recess may be formed, for example, elastically changeable between the mounting position and the contacting position. This can be achieved, for example, in that the legs themselves are elastically changeable and can be moved, for example, by means of an external force from one position to the other position.
  • a rest position of the busbar connector either the mounting position and / or the contacting position, wherein it is particularly preferred that a rest position is formed by the contacting position.
  • the latter has the advantage that by automatically assuming the rest position of the busbar connector is reliably and permanently connected to the busbar, so that safe operation can be achieved even under unfavorable conditions. Especially in the technical field of electrical switchgear, this proves to be advantageous in order to achieve a high level of safety during normal operation.
  • the busbar connector can be used as a single-pole component be designed for contacting a single busbar, multiple busbars of the same electrical voltage and phase or the like.
  • a plurality of busbar connectors can be combined to form an in particular multi-pole unit, for example by a common housing or the like.
  • multipolar connections can be made or dismantled in one go.
  • the leg may be elastically formed with the body member, but the leg is formed integrally with the body member. In this way, the leg can be made without much additional effort together with the body member.
  • legs which in turn form one or more recesses, so that at least one bus bar can be connected to the busbar connector.
  • the legs may for example be arranged next to each other, so that they form adjacent recesses into which also juxtaposed busbars can be introduced. In this way, a multi-rail connector can be created in a very compact form.
  • the recess is adjustable. This makes it possible to adapt the recess to different dimensions of busbars and in this way to achieve a highly flexible busbar connector.
  • the adjustability of the recess can be achieved, for example, in that the legs can be variably arranged in their position on the body member.
  • the variability can also be generated by an elastic element such as a spring element or the like, which moves the legs in different mounting positions and / or contacting positions.
  • the leg can be fixed at one of a plurality of discrete positions on the body element. This can be achieved for example by hook connections, screw or the like.
  • the busbar can be clamped in the contacting position in the recess.
  • a good electrical contact in addition to a mechanical attachment can be achieved by an increased level of Reliability can be achieved.
  • mechanical forces and moments can also be transferred from the busbar to the busbar connector and vice versa by means of the clamping connector. This simplifies, among other things, the assembly.
  • more than two legs can form the recess in order to be able to achieve, for example, increased requirements with regard to the strength of the connection, of the electrical contact or the like.
  • the legs can be biased by elastic elements, spring elements or the like against each other.
  • the spring element is arranged in the region of the recess. This acts on the leg, for example, to bias him into a rest position.
  • the spring element can also be provided for particular simultaneous biasing of several legs. With the spring element, a defined bias of the leg can be achieved with which the busbar connector can be attached to a power rail. At the same time, the maintenance of the contact force during load changes can be achieved, in particular in the case of a short-circuit current load.
  • the legs may have a chamfer.
  • the chamfer can be arranged for example on a rail-side edge of the recess. It may be formed by a phase or the like.
  • an insertion aid may be provided by the bevel in the region of the insertion of the recess, for example at the ends of the legs or the like.
  • the body element as a whole has an elasticity. This proves to be advantageous if the busbars to be connected are not aligned due to mounting tolerances and a balance is to be created with the busbar connector. Of course, this function can also be achieved by appropriately adjustable or movable legs, which can be aligned according to the offset. Combination solutions can also be provided.
  • the body element has a mounting unit or an attachment for a mounting unit.
  • the assembly unit can be formed, for example, by a separate tool which engages in the region of the recess and moves it from the contacting position into the assembly position.
  • the tool can also be integrated into the body element, so that no separate tool is required.
  • an approach may be provided on the body member, for example in the form of a bore, recess or the like.
  • the mounting unit may comprise, for example, a threaded pin rotatably guided in a threaded bore.
  • the threaded bore is preferably arranged in the region of the recess in the body element.
  • the grub screw is guided in such a way in the threaded bore that it can reach different positions in the longitudinal direction. Preferably, it acts at a position opposite to the recess, so that the recess between the mounting position and the contacting position can be easily moved by only the threaded pin is driven to rotate in the desired manner.
  • the threaded pin has a drive lug, which may be formed, for example, by a square, a slot, a cross slot or the like.
  • the mounting unit is provided for moving from the mounting position to the contacting position. With the mounting unit, the recess can be moved from the rest position to the other position.
  • Body member 16 on which pairwise opposite two legs 18, 20 are arranged.
  • a pair of legs 18, 20 forms a recess 36, 38, in which, as will be explained later, each a bus bar is inserted.
  • the body element 16 and the limbs 18, 20 integrally formed thereon are produced in one piece from a copper sheet, which is selected in terms of thickness such that it will conduct both the electrical current flowing during normal operation with sufficiently low electrical resistance and a sufficiently low contact resistance can make the busbar.
  • the legs 18, 20 are angled perpendicularly projecting from the body member 16 respectively in the same direction.
  • Each leg 18, 20 has opposite to its connection to the body member 16 has an end portion 24 and 26, in each of which a pin 28, 30 is formed outwardly projecting.
  • the pins 28, 30 are circular cylindrical.
  • the legs 18, 20 are arranged in each case a spring 22, which in the present case is essentially bow-shaped and in each case has an annular region 32, 34 in its end regions.
  • the annular portion 32, 34 forms a bore which is formed in accordance with the diameter corresponding to the pins 28, 30.
  • a spring can also be arranged on the opposite side of the legs 18, 20 below the body element 16.
  • the spring 22 is presently formed from a spring steel having a barrier layer on the surface side to reduce corrosion.
  • a shoulder 40, 42 is formed on the legs 18, 20 on the recess side, in the form of a projection. As will be seen later, the shoulders 40, 42 together form a stop for the busbar 12, 14 to be received in the recess 36, 38.
  • not designated openings in the body member 16 are used in addition to the Material redesign as an approach for a tool with which the busbar connector 10 on the busbar 12, 14 placed or can be deducted.
  • Fig. 2 now shows a proper use of the busbar connector 10 according to the invention Fig. 1 in the connection of two opposite ends of busbars 12, 14.
  • the busbars 12, 14 have a rectangular cross section and are formed from copper, the same material from which the busbar connector 10 is formed.
  • the busbars 12, 14 have substantially the same cross-sectional areas in this embodiment.
  • the busbar connector according to the invention can also be used for connecting busbars of different cross-sectional dimensions. If necessary, the legs are adjusted accordingly.
  • the legs 18, 20 loaded for mounting or dismounting against the bias applied by the spring 22, so that the recess 36, 40 slightly widened to lead out the busbar 12 and 14 from their respective recess or this to introduce into the respective recess.
  • This position corresponds to the mounting position.
  • the legs 18, 20 at their ends opposite the body member 16 on the recess side bevels 44. This facilitates the insertion of the respective busbar 12, 14 in the corresponding recess 36, 38.
  • the busbar connector 10 is simply plugged onto the busbars 12, 14 to make the electrical connection. A removal of the busbar connector 10 can be achieved by means of a non-designated rectangular opening of the body member 16 engaging tool.
  • the tool After completion of the respective assembly work, the tool is relaxed or removed, so that the spring 22 can again exert its force in the form of a bias on the legs 18, 20, whereby the corresponding terminal of the busbar connector 10 is transferred from the mounting position to the contacting position.
  • paragraphs 40, 42 are provided on the respective legs 18, 20 here. In the present case, these are arranged at the same height, so that the rectangular busbars 12, 14 strike against the respective shoulders 40, 42 during assembly. In this position, the busbars 12, 14 have reached their final position for mounting on the busbar connector 10.
  • the recess-side regions of the legs 18, 20, which adjoin the respective shoulders 40, 42 are aligned in the contacting position substantially parallel to unspecified side surfaces of the busbars 12, 14, so that a the largest possible contact surface between the busbars 12, 14 and the respective legs 18, 20 can be formed.
  • a low contact resistance can be achieved, so that a high current carrying capacity can be achieved with low thermal degradation.
  • a significantly more compact design compared to conventional screw connectors can be achieved because the design causes a significant loss of power reduction compared to screw connectors.
  • the present busbar connector 10 comes with a minimum amount of moving parts. Therefore, high reliability can already be achieved due to the small number of moving parts. Due to the terminal properties of the busbar connector 10 is also particularly safe when the arrangement is for example subjected to a short-circuit current. This is precisely where the advantage of the invention proves, since in a compact design a high conductivity can be achieved in the connection of the busbars 12, 14. Consequently, not only the thermal but also the mechanical stress required due to the high current surges is given.
  • busbar connector 10 can be used quasi in plug-in technology for connecting the busbars 12, 14. This allows a reliable connection of the busbars 12, 14 to achieve reliable even in the tightest mounting conditions.
  • textures are provided on the legs on the recess side. In the present case, the textures consist of net-shaped narrow formations. In the contacting position, these engage in the side surfaces of the rectangular busbars 12, 14.
  • the body member 16 and the spring 22 have an electrically insulating coating outside the electrical contact region.
  • the coating is formed by a coating, but it can also be formed by an anodization or the like.

Landscapes

  • Installation Of Bus-Bars (AREA)

Claims (7)

  1. Connecteur de rails conducteurs (10) ayant un élément de corps (16) électriquement conducteur et comprenant au moins deux branches (18, 20) disposées en forme de fourche et formant un évidement (36) pour recevoir un rail conducteur (12), les branches (18, 20) étant précontraintes par moyen d'un élément de ressort (22), caractérisé en ce que les branches (18, 20) sont formées d'un seul tenant avec l'élément de corps (16), un épaulement (40, 42) étant respectivement formé sur les branches (18, 20), les épaulements (40, 42) formant ensemble une butée pour le rail conducteur (12), qui est à recevoir dans l'évidement (36).
  2. Connecteur selon la revendication 1, caractérisé en ce que les branches (18, 20) sont élastiques.
  3. Connecteur selon l'une des revendications 1 à 2, caractérisé en ce que le rail conducteur (12) peut être serré dans la position de mise en contact dans l'évidement (36).
  4. Connecteur selon l'une des revendications 1 à 3, caractérisé en ce que les branches (18, 20) sont précontraintes dans la position de mise en contact.
  5. Connecteur selon l'une des revendications 1 à 4, caractérisé en ce que les branches (18) comprennent un chanfrein (44).
  6. Connecteur selon l'une des revendications 1 à 5, caractérisé en ce que l'élément de corps (16) et l'élément de ressort (12) comprennent un revêtement électriquement isolant à l'extérieur de la zone de contact électrique.
  7. Connecteur selon la revendication 6, caractérisé en ce que le revêtement est formé par un vernissage.
EP09002863.0A 2008-03-31 2009-02-27 Connecteur de rails conducteurs Active EP2107660B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202008004431U DE202008004431U1 (de) 2008-03-31 2008-03-31 Stromschienenverbinder

Publications (3)

Publication Number Publication Date
EP2107660A2 EP2107660A2 (fr) 2009-10-07
EP2107660A3 EP2107660A3 (fr) 2015-02-25
EP2107660B1 true EP2107660B1 (fr) 2019-05-08

Family

ID=39466295

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09002863.0A Active EP2107660B1 (fr) 2008-03-31 2009-02-27 Connecteur de rails conducteurs

Country Status (2)

Country Link
EP (1) EP2107660B1 (fr)
DE (1) DE202008004431U1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011056710A1 (de) * 2011-12-20 2013-06-20 Telegärtner Karl Gärtner GmbH Koaxiales elektrisches Übertragungselement
RU2015133169A (ru) * 2013-02-15 2017-03-17 Мульти-Холдинг Аг Устройство для обеспечения контакта с токопроводящей шиной
CN106077374B (zh) * 2016-06-21 2018-09-25 苏州凯艾帝电气有限公司 母线加工装置以及母线加工方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4235444C1 (de) 1992-10-21 1994-01-13 Woehner Alfred Gmbh Anschluß- und Verbindungsklemme für Sammelschienen
DE19513063C2 (de) * 1995-04-07 2002-06-27 Hager Electro Gmbh Anschlußklemme
DE19716762C2 (de) * 1997-04-12 2002-02-28 Wago Verwaltungs Gmbh Schirmanschlußklemme
DE19755513C2 (de) * 1997-12-13 1999-10-14 Fahrleitungsbau Gmbh Dehnverbinder für aufeinanderfolgende Stromschienen einer Schleifleitung
DE20114580U1 (de) * 2001-09-04 2001-11-15 Geyer Ag Sammelschienenverbinder

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
DE202008004431U1 (de) 2008-05-29
EP2107660A2 (fr) 2009-10-07
EP2107660A3 (fr) 2015-02-25

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