DE102017125270B3 - Abgriffsteckverbinder - Google Patents

Abstract

A tap-off connector with an insulating material housing and with a contact element (7) movably mounted in the insulating housing is described. The contact element (7) is designed for the electrically conductive contacting of electrical conductors of a current-carrying profile. A spring element is arranged between a bearing (20) of the insulating material housing and the contact element (7) and the contact element (7) can be acted upon by the spring element with a spring force. The spring element is a U-shaped curved leaf spring (18) with a spring leg (22), one on the spring leg (22) subsequent spring bow (21) and one of the spring bow (21) adjoining plant leg (19). The contact element (7) is relatively movable to the spring leg (22) on the spring leg (22). The bearing limb (19) is supported on the support (20) of the insulating housing and has a conductor connection contact (25).

Description

The invention relates to a Abgriffsteckverbinder with a Isolierstoffgehäuse and with a plurality of movably mounted in the insulating material contact elements, which are designed for electrically conductive contacting of electrical conductors of a current-carrying profile, wherein each one spring element between a support of the insulating material and one of the contact elements is arranged and each contact element can be acted upon by its spring element with a spring force.

For distribution of electrical energy in a building and for connecting lights at selectively selected positions, bus bar systems with profile elements are known, which have a comb-like cross section with webs and grooves formed therethrough, as well as electrical conductors accommodated in the slots. In such current-carrying profiles, these electrical conductors are inserted into the grooves, e.g. received on the side walls of the webs and can be contacted by a tap connector with protruding into the grooves contacts electrically conductive.

DE 10 2011 056 043 B4 shows a Stromschienenabgriffelement with an insulating housing and provided for contacting an electrical conductor of a comb-like busbar electrically conductive contact arm. An electrically conductive holding arm extends parallel to the contact arm, with a clearance for receiving a comb-toothed connection of the busbar between the contact arm and the holding arm. The electrical conductors are laterally contacted by the contact arm electrically conductive.

Likewise is from the DE 10 2007 033 945 B4 a connector assembly with a connector known, which contacted with the side of contact lugs additional springs electrical conductor of a comb-like connector contacted.

US 3 771 103 A discloses a system for installing electrical wiring in buildings having a current-carrying profile in whose slots electrical conductors are received. For Leiterabgriff a tap connector is provided which has pin contacts, which dive into the grooves of the current-carrying profile and rest on the electrical conductor to be contacted. The pin contacts are pressed against the electrical conductors with a spring preload. The contact lug of a connecting cable can be clamped, for example, with a contact screw, which is also provided for fixing the spring for a contact lug.

The DE 20 2015 106 730 U1 discloses a connector for through-wiring to a luminaire, the housing of which has a plurality of through-openings arranged in two rows. To the through holes, tap openings for electrical tapping extend from the through-wiring. For the tap a tapping element is provided with a contact element. The contact element is for example a one-piece, U-shaped bent contact spring which is detachably arranged in the tapping element. The electrical conductors of the through-wiring are contacted electrically via contact ends of the contact spring.

The US 4,997,378 A describes a two-part contact element for IC contacts with a U-shaped contact spring and a loosely surrounding the end of the contact spring contact plate. The contact pad is vertically displaceable in an opening and is pressed by the end of the contact spring in the direction of a conductor to be contacted. By means of this two-part solution, an enlarged contact surface with respect to the end of the contact spring is to be provided with the contact plate in order to ensure reliable contacting.

Of the US 2003/0211787 A1 is to remove an electrical connector, which is to produce an electrical contact between two electrical parts to be connected, for example, a printed circuit board and an electrical appliance via a U-shaped contact spring. The housing of the electrical connector is mounted on at least one of the two electrical parts. By connecting to a contact spring a more compact design should be possible.

The WO 02/27870 A1 shows an electrical connector in the form of a pin contact, which is axially displaceable in a guide against the force of a contact spring. By using a leaf spring as a contact spring a more compact and durable design compared to the use of coil springs is to be made possible.

Proceeding from this, it is an object of the present invention to provide an improved tapping connector, which ensures a reliable connection contact for an electrical conductor of a current-carrying profile in a very compact structure, wherein the contact elements can be reliably and easily connected to an electrical conductor.

The object is achieved by the terminal connector with the features of claim 1. Advantageous embodiments are described in the subclaims.

For a generic tap connector is proposed that the spring elements each formed as a U-shaped leaf spring with a spring leg, an adjoining the spring leg spring bow and an adjoining the spring bow plant leg. Each contact element is relatively movable to its spring leg on the spring leg. The plant leg is supported on the support of the insulating material and has a conductor connection contact for connecting an electrical connection conductor, for example for a supply or discharge or a data connection.

By using a U-shaped leaf spring for the spring element of each contact element of Abgriffsteckverbinder can be made very flat, while still a sufficient contact force or contact pressure of the contact element on the electrical conductor can be realized. Characterized in that the contact element is not integrally or integrally connected to the spring element, but relatively movable rests on the spring leg on the spring leg, the pivotal movement of the spring leg of the spring element is decoupled from the linear movement of the contact element. Thus, the contact force of the spring leg is transferred at full deflection largely without friction losses on the movably mounted in the insulating housing contact element and tilting of the contact element upon application of force by the U-shaped leaf spring is prevented. Due to the decoupled or two-part design of the contact element and of the spring element, an optimized material selection with regard to the required properties, e.g. Spring elasticity and current conductivity. Due to the two-part design of the contact element and the spring element, the conductor connection contact and the contact element are also decoupled from each other, so that a force caused by a conductor pull advantageous not from the conductor connection contact on the contact element and thus not on the contact point between the contact element and an electrical conductor of the power supply profile transmits.

It has been shown that the electrically conductive contact between the electrical conductor and a terminal lead connected to the leaf spring is still very reliable, even if the contact element is not formed integrally with the leaf spring, but only a support between the contact element and leaf spring is present. In addition, an at least partial coating can take place at the contact surfaces or contact sections in order to optimize the current transfer on the one hand and / or the friction on the other hand.

The plant leg is supported on the support of the insulating material, so that the spring force of the leaf spring is concentrated on the relative to the superposed, resting plant leg movable spring leg on the contact element. By virtue of the fact that the plant limb has a conductor connection contact, in the case of a very compact construction and relatively short current paths, an electrical connection conductor clamped to the conductor connection contact of the installation limb can be electrically connected via the leaf spring and the contact element to the electrical conductor of a current-carrying profile (for example a bus bar). The contact resistances are sufficiently low.

Each contact element may be mounted in a respective web of the insulating material. Thus, each contact element is received linearly displaceable in a web of the insulating material. This web of the insulating material can then be immersed in a groove of the current-carrying profile, in which the electrical conductor of the current-carrying profile is arranged. The web thus serves on the one hand to support and guide the contact element by a corresponding space for receiving the contact element is present in the web, and on the other hand for guiding and supporting the Abgriffsteckverbinders in the chamber-like power supply profile. The web can then provide an electrical insulation of the side surfaces of the contact element.

The conductor connection contact may be integrally formed with the leaf spring of the sheet material of the leaf spring and have at least one spring arm for clamping an electrical connection conductor. This has the advantage that in a simple and compact design and inexpensive production in the forming process of the conductor connection contact can be formed directly on the leaf spring. The leaf spring provides with their intended for the application of force to the contact element resilient properties and the desired for the clamping of an electrical connection conductor by spring force by the spring arm spring properties. An electrical connection conductor can be easily inserted in this way in the conductor connection contact of the leaf spring to be clamped there by means of the spring arm to the conductor connection contact. Such plug contacts for the electrical connection conductor with a spring arm have proven themselves in the conductor connection technology.

The conductor terminal contact may have two spaced-apart spring arms which have a decreasing distance towards their spring arm ends and are designed to clamp an electrical connection conductor between the spring arm ends. Such a pair of facing spring arms forms a conductor entry funnel for the electrical lead to be clamped. By the two facing each other spring arms is the clamped electrical connection conductor between the spring arm ends, wherein the contact force is optimally concentrated on the relatively small contact surfaces of the Federarmenden with the electrical connection conductor. As a result, the surface pressure is increased and the clamping force of the spring arms optimally utilized. The contact resistance can be reduced in this way and the power line cross sections can be increased by the use of two spring arms.

From the plant leg of the leaf spring can be bent at least one side wall. The spring bow may be formed on a part of the side wall which is made free from the bearing limb. By means of such a bent from the plant leg side wall is provided by the refolding a stable surface from which protrudes integrally formed from the side wall spring arm. In addition, the side wall provides a guide wall for the electrical connection conductor, which passes on a side wall to the at least one spring arm, in order then to be clamped by the spring arm end.

The insulating housing may have a plurality of webs extending parallel to each other. The contact elements are then stored in the webs. In this way, a comb-like current-carrying profile can then be contacted by the tap-off connector such that a plurality of electrical conductors arranged next to one another in grooves of the current-carrying profile are contacted by the contact elements that dip into the slots.

It is conceivable that the contact elements at a distance in a row next to each other and in at least two rows in succession in the insulating material can be positioned. In this way it is possible to increase the creepage distances and to provide a conductor connection for the input and output lines to be tapped onto the tapping connector on several levels or of two mutually opposite end faces of the tapping connector.

By the term "side-by-side" is meant that the elements are directly adjacent or indirectly with intervening elements in a yet adjacent relationship to one another.

The insulating material can be composed of several parts of a base body and insert elements. The insert elements are then designed to receive and support each one of the contact elements and for optional insertion into slots of the body. In this way, a tapping connector can be adjusted by inserting and fixing inserts at selected slots of the body so that the tapping connector meets a desired contacting requirement of selected electrical conductors of the current-carrying profile. By means of this equipment of a basic body with insert elements, a tapping connector can also be adapted to be rotated optionally 180 degrees, depending on the equipment of the insert elements, to be plugged onto the current-carrying profile. The insert elements further preferably receive the spring elements. The insert elements can also be arranged displaceably for a phase selection within a row.

The contact elements can each be designed as a flat sheet-metal part with a contact end tapering towards a contact tip. In this way, a tip-contacting of the electrical conductor of a current-carrying profile is provided with the contact tip, in which the contact force of the U-shaped leaf spring is concentrated on the contact tip of the contact element and from there to the electrical conductor to be contacted. The contact tip is also capable of burrowing into the electrical conductor so as to penetrate oxide layers. Thus, the contact resistance can be further reduced. The flat design of the trained as a blade contact contact element is particularly advantageous for receiving in recesses of a narrow portion of the insert element, which dive into grooves of a current-carrying profile suitable.

The contact end diametrically opposite end of a contact element may be widened by bending, folding or punching by and form a support for the spring element. This can be formed from a sheet metal element, a contact element, which provides a sufficient support surface for the spring element by the widened end and is otherwise kept narrow for immersion in a groove of the current-carrying profile.

• 1 - Perspektivische Ansicht eines Abgriffsteckverbinders mit Blick schräg von vorne,
• 2 - Perspektivische Ansicht des Abgriffsteckverbinders aus 1 mit Blick schräg von hinten;
• 3 a) - Schnittansicht eines Einsatzelementes für den Abgriffsteckverbinder;
• 3 b) - Schnittansicht eines modifizierten Einsatzelementes für den Abgriffsteckverbinder;
• 4 a) - Perspektivische Ansicht des Einsatzelementes aus 3 a);
• 4 b) - Perspektivische Ansicht des Einsatzelementes aus 3 b);
• 5 a) - Seiten-Schnittansicht des Einsatzelementes aus 3 a) und 4 a) im unbelasteten Zustand;
• 5 b) - Seiten-Schnittansicht des Einsatzelementes aus 3 b) und 4 b) im unbelasteten Zustand;
• 6 a) - Seiten-Schnittansicht des Einsatzelementes aus 5 a) im Kontaktzustand;
• 6 b) - Seiten-Schnittansicht des Einsatzelementes aus 5 b) im Kontaktzustand;
• 7 a) - Perspektivische Ansicht eines Kontaktelementes mit U-förmig gebogener Blattfeder;
• 7 b) - Perspektivische Ansicht des Kontaktelementes mit U-förmig gebogener Blattfeder aus 7 a) in 180 Grad gedrehter Ansicht;
• 8 a) - Perspektivische Ansicht eines modifizierten Kontaktelementes mit U-förmig gebogener Blattfeder;
• 8 b) - Perspektivische Ansicht des modifizierten Kontaktelementes mit U-förmig gebogener Blattfeder aus 8 a) in 180 Grad gedrehter Ansicht;
• 9 - Teilschnittansicht eines Abgriffsteckverbinders mit U-förmig gebogenen Blattfedern und darauf aufgelagerten Kontaktelementen;
• 10 - Perspektivische Ansicht des Abgriffsteckverbinders aus 9;
• 11 - Perspektivische Ansicht des Abgriffsteckverbinders aus 10 mit Blick auf die Unterseite mit Deckelteil;
• 12 - Perspektivische Ansicht eines Isolierstoffgehäuseteils für den Abgriffsteckverbinder aus 9 bis 11;
• 13 - Perspektivische Ansicht der Unterseite des Deckelteils;
• 14 - Perspektivische Ansicht des Isolierstoffgehäuseteils aus 12 von der Unterseite;
• 15 - Seiten-Schnittansicht einer weiteren Variante des Einsatzelementes mit mehreren Kontaktspitzen.

The invention will be explained in more detail with reference to embodiments with the accompanying drawings. Show it:

• 1 - Perspective view of a tap connector with a view obliquely from the front,
• 2 - Perspective view of the tapping connector 1 with a view obliquely from behind;
• 3 a) - Section view of an insert element for the tap connector;
• 3 b) - Section view of a modified insert element for the tap connector;
• 4 a) - Perspective view of the insert element 3 a) ;
• 4 b) - Perspective view of the insert element 3 b) ;
• 5 a) - Side sectional view of the insert element 3 a) and 4 a) in the unloaded condition;
• 5 b) - Side sectional view of the insert element 3 b) and 4 b) in the unloaded condition;
• 6 a) - Side sectional view of the insert element 5 a) in contact state;
• 6 b) - Side sectional view of the insert element 5 b) in contact state;
• 7 a) - Perspective view of a contact element with a U-shaped bent leaf spring;
• 7 b) - Perspective view of the contact element with a U-shaped bent leaf spring 7 a) in 180 degrees rotated view;
• 8 a) - Perspective view of a modified contact element with a U-shaped bent leaf spring;
• 8 b) - Perspective view of the modified contact element with a U-shaped bent leaf spring 8 a) in 180 degrees rotated view;
• 9 - Partial sectional view of a Abgriffsteckverbinders with U-shaped bent leaf springs and contact elements mounted thereon;
• 10 - Perspective view of the tapping connector 9 ;
• 11 - Perspective view of the tapping connector 10 overlooking the bottom with lid part;
• 12 - Perspective view of a Isolierstoffgehäuseteils for the tap connector 9 to 11 ;
• 13 - Perspective view of the underside of the lid part;
• 14 - Perspective view of Isolierstoffgehäuseteils from 12 from the bottom;
• 15 - Side sectional view of another variant of the insert element with a plurality of contact tips.

1 shows a first embodiment of a tapping connector 1 , the one made of several parts Isolierstoffgehäuse 2 Has. The insulating material housing 2 is from a main body 3 and of insert elements 4 composed, which also each have a housing element formed of insulating material.

At the front has the main body 3 of the insulating material housing 2 a transversely extending, slot-like conductor insertion opening 5 , which is used to insert several electrical connection conductors 6 in the insulating material housing 2 is trained. This allows the electrical connection conductors 6 in associated, selected insert elements 4 be brought in and clamped there.

It becomes clear that from the insert elements 4 contact elements 7 protrude into the Isolierstoffgehäuseteil the insert elements 4 are mounted linearly displaceable. The contact elements 7 are as a flat sheet metal part with one to a contact tip 8th tapered contact end formed. This contact tip 8th protrudes from the one web having insert element 4 at the upper edge of the insert element 4 out and can by the action of a compressive force in the insert element 4 be pushed in, leaving the contact tip 8th then approximately flush with the top edge of the insert element 4 concludes or even continues to dive into it.

It becomes clear that the basic body 3 web-like projecting web elements 9 has, where the insert elements 4 each in the space between two such web elements 9 can be used. You web elements 9 form together with the insert element 4 a footbridge. This space between two such web elements 9 , which are arranged in a row one behind the other, thus provides a slot 10 for inserting an insert element 4 ready.

It is still recognizable that the basic body 3 on the outer sides two side walls 11a . 11b has, between which the web elements 9 are arranged in a plurality of webs forming rows. These sidewalls 11a . 11b can embrace a current-carrying profile laterally. The bridge elements 9 can with the insert elements 4 as webs dive in grooves of the current guide profile to contact the electrical conductors located there.

2 shows a perspective view of the tapping connector 1 out 1 with a view obliquely to the back. It can be seen that there is also a slot-shaped conductor insertion opening 5 for holding several electrical connection conductors 6 is available. Furthermore, there are two separate conductor entry openings 12 in the form of individual channels for receiving in each case an electrical connection conductor 6 to an associated insert element 4 intended. One of these ladder entry openings 12 For example, for a protective earth PE is provided to pass through this separate conductor insertion opening 12 To provide sufficient electrical insulation with the largest possible creepage distances and creepage distances to the electrical potential leading lines.

Another such separate conductor insertion opening may also be provided for receiving data lines which are also sensitive to influences by electrical voltage potential.

Furthermore, it will be appreciated that in the body 3 in the intermediate space between the respective web elements arranged one behind the other in a row 9 slots 10 are available through an appropriate space to insert elements there 4 take. These could optionally be used at selected, required slots.

It is also recognizable that between two web elements 9 in the transverse direction, ie transverse to each one longitudinal web, much lower web elements 13 protrude. These are designed and provided to immerse in shallower grooves, which are arranged in the current guide profile to be contacted alternately to deeper grooves. Thus, the electrical conductors are arranged in the current-carrying profile transversely to the longitudinal direction of the webs and grooves alternately on two levels, so that the contact elements 7 also be positioned transversely to the web direction alternately in two height levels.

3 a) shows a perspective sectional view of an insert element 4 with an insulating housing part 14 , in which a sword-like, formed of a flat sheet material contact element 7 is included. It becomes clear that the triangular contact tip 8th of the contact element 7 from the insert element housing 14 protrudes. In the insert element housing 14 is a guide slot 15 for receiving the contact element 7 present such that the contact element 7 linearly displaceable in the insert element housing 14 is stored. The contact element 7 is the side of corresponding side wall portions of the insert element housing 14 covered, provide the appropriate guide walls.

It can be seen that the insert element housing 14 a lower, wide base section 16 and an adjoining, narrower bridge section 17 Has. The contact element 7 is in the bridge section 17 stored. The broader base section 16 has a recess for receiving a U-shaped leaf spring 18 that with a plant thigh 19 on a support 20 of the insert element 14 as part of the insulating material housing 2 is superimposed. To the plant leg 19 closes a feather bow 21 on, in a plant thigh 19 opposite spring leg 22 passes. The spring leg 22 exerts a spring force in the form of a compressive force on the separate contact element 7 out with a support 23 at his contact point 8th opposite end on the spring leg 22 rests. For this purpose, the end portion of the spring leg 22 U-shaped bent to a reduced contact surface 24 to build. The adjoining free end of the spring leg 22 is this from the contact element 7 in the direction of the plant thigh 19 bent.

The contact element 7 is thus on the U-shaped leaf spring 18 supported and not with the leaf spring 18 connected. The contact element 7 and the spring leg 22 the leaf spring 18 are thus relatively movable to each other, wherein the spring leg 22 a spring force on the contact element 7 exerts, which is the contact element 7 in contact direction K from the leaf spring 18 moved away, leaving the contact tip 8th from the front edge of the web section 17 is forced out to contact an electrical conductor. This is a contact force through the contact tip 8th exerted on a to be contacted electrical conductor of a current-carrying profile, by the leaf spring 18 is determined. The leaf spring 18 also has a conductor connection contact 25 , This is in the illustrated embodiment in one piece from the plant leg 19 educated. These are two opposing side walls 26 from the side edge of the plant leg 19 bent. These sidewalls 26 protrude in the same direction to the contact element 7 down and form together with the ground providing an investment thigh 19 a channel for guiding a stripped end of an electrical connection conductor 6 towards a nip. The nip is bent by two mutually curved, ie from the plane of the side walls 26 to the opposite level of the opposite side wall 26 bent out spring arms 27 provided. These spring arms 27 are in one piece from the side walls 26 trained and of the plant leg 19 cut free. This is the spring arms 27 movable and can with their free end the stripped end of an electrical connection conductor 6 Connect. This one is between the two spring arms 27 jammed.

It becomes clear that from the electrical connection conductor 6 a current path via the conductor connection contact 25 and the integrally formed U-shaped leaf spring 18 to the separate contact element 7 leads. This is relatively short due to the compact design and has only the contact point on the spring arms 27 (Spring tongues) to the stripped end of the electrical connection conductor 6 and between the spring leg 22 and the contact element 7 on. However, these contact points are so reduced in their contact surface that the respective spring force is concentrated on these contact points. The contact resistance is therefore very low, so that a good power transition is ensured.

3 b) shows a perspective sectional view of a modified insert element 4 , It can be seen that the guide slot 15 for receiving the contact element 7 from the leaf spring 18 extended to the opposite outlet. The guide slot 15 may, for example, have a conically increasing width. This will be the contact element 7 still through the parallel side walls of the web section 17 that the guide slot 15 limit, led. However, it can perform tilting movements in the widening, V-shaped receiving shaft. This is particularly advantageous for changes in length of the contacted electrical conductor.

The contact element 7 has a concave bearing surface of the support 23 for the spring leg 22 , Because of that the bearing surface 24 the leaf spring 18 facing end face of the support 23 arcuately shaped, the friction between the support 23 and the bearing surface 24 reduced.

Furthermore, the conductor connection contact 25 on the spring leg 22 opposite side of the plant leg 19 arranged so that the plant leg 19 on lateral elevations of the cover part 30 rests. Thus, the assembly can be simplified.

4 a) shows a perspective view of the insert element 4 out 3 a) , It becomes clear that from the broader base section 16 the narrower bridge section 17 protrudes, which approximately centered on the base section 16 is positioned. It is also recognizable that the insert element 4 in its base part 16 a ladder entry opening 28 for inserting an electrical connection conductor 6 to the conductor connection contact 25 Has.

It can also be seen that from the upper edge of the web section 17 the contact tip 8th of the contact element 7 protrudes.

4 b) shows a perspective view of the insert element 4 out 3 b) , It becomes clear that the mouth of the guide slot 15 significantly wider than the contact element received therein 7 is, which can thus perform a tilting movement.

5 a) shows a side sectional view of the insert element 4 now with one above the contact tip 8th arranged electrical conductors 29 a current-carrying profile to be contacted (not shown). It becomes clear that the contact point 8th of the contact element 7 by the clamping force of the U-shaped leaf spring 18 in the contact direction K on the electrical conductor 29 is pressed. This can be the contact tip 8th in the surface of the electrical conductor 29 penetrate and penetrate any oxide layers and a good electrically conductive contact between the conductor connection contact 25 clamped electrical connection conductor 6 and with the contact element 7 to be contacted electrical conductors 29 to ensure a current-carrying profile.

It also becomes clear that the conductor connection contact 25 the U-shaped leaf spring 18 is aligned so that there to be clamped electrical connection conductor 6 approximately parallel to that with the contact element 7 to be contacted electrical conductors 29 a current-carrying profile extends. These are the spring arms 27 of the conductor connection contact 25 transverse to the longitudinal direction of the contact element 7 and the contact direction K aligned. The contact element 7 is located above the conductor connection contact 25 the U-shaped leaf spring 18 , whose feather bow 21 in Leitereinsteckrichtung for the electrical connection conductor 6 into the conductor connection contact 25 behind the conductor connection contact 25 lies.

It is clear that the insert element 4 a lid part 30 has, with which the base section 16 after insertion of the U-shaped bent leaf spring 18 and the contact element 7 is closed in a corresponding receiving space and that is a support 20 for the plant leg 19 the leaf spring 18 provides.

It can also be seen that the contact element 7 on the side, the contact tip 8th opposite, a widened support 23 Has. This support 23 can also be formed for example by bending, folding or upsetting of the sheet metal element from which the contact element 7 is formed. In the illustrated embodiment, the support is by out of the plane of the contact element 7 laterally projecting fingers and the front edge of the contact element 7 educated.

5 b) shows a side sectional view of the modified insert element 4 out 3 b) and 4 b) now with one above the contact tip 8th arranged electrical conductors 29 a current-carrying profile to be contacted (not shown). It becomes clear that the contact element 7 due to the V-shaped widened receiving shaft, ie the guide slot 15 , upon movement of the contacted electrical conductor 29 can perform a tilting movement, leaving the contact tip 8th on the electrical conductor 29 continues to rest. Thus, a length shift without affecting the contact transition is possible in a tolerance range.

6 a) shows a side view of the insert element 4 out 5 a) now in a state in which the contact element 7 opposite to the contact direction K in the direction of the conductor connection contact 25 and plant thighs 29 the leaf spring 18 is moved. It becomes clear that the contact element 7 linearly displaceable in the insert element housing 16 of the insert element 4 is stored. The fact that the distance between the electrical conductor to be clamped 29 a current-carrying profile (not shown) and the insert element 4 compared to the state in 5 is reduced, the contact element 7 in the insert element 4 pushed in further. The leaf spring 18 exercises now by the displacement of the spring leg caused thereby 22 to the plant leg 19 towards a spring force in the contact direction K off, the contact tip 8th relatively strong against the electrical conductor to be clamped 29 of the current-carrying profile presses. This provides a very reliable electrical contact. This is in the area in which the contact element 7 free in the insert element 4 moved and not on boundary walls of the insert element 4 abuts, from the distance of the insert element 4 and the electrical conductor to be clamped 29 a power supply profile largely independent.

6 b) shows in a corresponding manner a side view of the modified insert element 4 out 5 b) in the deflected contact state. Also in this contact state, the contact element 7 due to the guide slot widening towards the orifice 15 perform a tilting movement through which the contact tip 8th in the extension direction of the contacted electrical Leisters 29 can move so as to change the length of the electrical conductor 29 compensate.

7 a) shows a perspective view of the U-shaped leaf spring 18 with the integrally molded conductor connection contact 25 , It becomes clear that the plant leg 19 in the area of the conductor connection contact 25 Tapered, ie narrowed. It is also recognizable that from the investment thigh 19 from the side edges opposite side walls 26 are bent. On these side walls 26 then close in the direction of the spring bow 21 protruding spring arms 27 at. These are inclined towards each other and out of the respective plane of the side wall 26 bent.

It can also be seen that the spring leg 22 with a U-shaped bend at the free end of a contact surface 24 having. This contact surface 24 lies on a support 23 from the separate contact element 7 on. This support 23 is through the contact tip 8th diametrically opposite end face of the contact element 7 educated. To fall out of the contact pin 7 This support can be prevented 23 in comparison with adjoining main section of the contact element 7 as shown widened in the width direction. It is also conceivable that the contact element 7 in this area is still bent transversely to the surface of the contact element to form a support surface and a stop.

Furthermore, it is clear that in this embodiment, the contact element 7 an impression 31 Has. Here, for example, is a contact in direction K extending approximately central region of the main plane of the contact element 7 bent. By this transformation of the contact element 7 for the formation of the impression 31 is the buckling stiffness of the contact element 7 improved.

7 b) shows a perspective view of the U-shaped leaf spring 18 with the contact element 7 with compared to 7 180 ° rotated viewing direction. It can be seen that the contact element 7 relatively movable to the spring leg 22 is and on the arched contact surface 24 is superimposed. Furthermore, those of the mutually parallel spaced side walls 26 protruding and facing each other spring arms 27 recognizable, through which the channel width starting from the side walls 26 reduces and with their free end edges an electrical connection conductor 6 can clamp.

8 a) shows a perspective view of the modified contact element 7 with a U-shaped curved leaf spring 18 , Here is the conductor connection contact 25 with the spring arms 27 on the side of the plant leg 19 arranged, which the spring leg 22 and the contact element 7 diametrically opposed. The plant thigh 19 thus limits the conductor receiving space to the spring leg 22 down while the lid member 30 bounded on the opposite side of the conductor receiving space. Thus wear the plant leg 19 and the lid member 30 for guiding the electrical conductor to the clamping point on the spring arms 27 at.

It is clear that the support 23 at its the bearing surface 24 of the spring leg 22 is concavely curved. This is the friction between the support surface 24 and the support 23 reduced.

8 b) shows a perspective view of the modified contact element 7 out 8 a) in a 180 degree rotated view. It becomes clear that the contact surface 24 of the spring leg 22 into the hollow of the support 23 dips, resulting from the arcuate curvature.

9 shows another embodiment of a tap connector 1 in semi-transparent representation. It can be seen that the insulating material housing 2 is constructed in several parts and a basic body 3 has, in which the U-shaped bent leaf springs 18 with the contact elements 7 are included. This basic body 3 has in this embodiment, integrally molded therewith webs, which extend parallel to each other and leaving a free space and are adapted to corresponding grooves of a current-carrying profile to be contacted. These bridges 9 For example, have different heights alternately, so that alternate low and high bars alternately. In this case, the contact elements 7 slidably inserted in recesses of such webs or in conjunction with separate insert elements 4 in spaces between such webs 9 built-in.

In the illustrated embodiment, the intended for the low webs contact elements 7 and leaf springs 18 directly in the body 3 added.

It is still recognizable that the basic body 3 at the bottom by a cover element 32 is covered, as a support for the plant leg 19 the leaf springs 18 serves. This allows the contact elements 7 and leaf springs 18 into the main body 3 be used. Subsequently, the main body 3 through the cover element 32 closed, which with the main body 3 locked by suitable locking elements or is connected by joining, for example by means of gluing or welding.

10 shows a perspective view of the tapping connector 1 out 9 , It becomes clear that contact elements 7 in the distance in a row R1 . R2 into the main body 3 are built in, with two rows R1 . R2 one behind the other in the insulating housing 2 are positioned. It is also conceivable that more than two rows R1 . R2 , such as three or four rows or even a single row R1 is available.

In the illustrated embodiment, the contact elements 7 for the lower bridges 9 in the first row R1 and the contact elements 7 for the higher bridges 9 in the second row R2 arranged. Thus, the contact distance and the air and creepage distances between the adjacent webs 9 in comparison to a variant in which the adjacent webs 9 in the same row their contact elements 7 have increased.

11 shows a partially transparent view of the tapping connector 1 out 9 and 10 , It is clear that the main body 3 through the lid element 32 is closed, which serves as a support for the first row in the main body 3 built-in U-shaped curved leaf springs 18 serves.

12 shows a perspective view of the body 3 the tap connector 1 out 9 to 11 , It becomes clear that the basic body 3 receiving chambers 33 has that in a row R1 next to each other and separated by partitions. These are adapted to the U-shaped curved leaf springs 18 take. From the reception rooms 33 lead approximately rectangular guide openings 34 in the non-visible webs on the opposite side to a contact element 7 each record.

13 shows a perspective view of the lid part 32 from the bottom, the juxtaposed, cuboidal supports 35 has, which are positioned in a row at a distance from each other. These cuboidal supports 35 are adapted to get into the receiving chambers 33 of the basic body 3 out 12 immerse and there a support for the plant leg 19 a leaf spring 18 provide.

14 shows a perspective view of the body 3 from the compared to 12 opposite side. Here it becomes clear that in the lower webs 9 the guide opening 34 are attached, which to the respective receiving chamber 33 open and receive a contact element 7 are adjusted. It is also clear that the side by side arranged in the transverse direction and extending in a common longitudinal direction parallel webs 9 in a free space 35 ends, which has a slot for separate insert elements 4 provides contact elements for the higher webs 9 to arrange.

15 shows a side sectional view of another variant of the insert element 4 in which the contact element 7 several contact tips 8th Has. These contact tips 8th claw into the electrical conductor to be contacted 29 one. At a change in length of the electrical conductor 29 there is a relative movement of the support 23 to the bearing surface 24 the leaf spring 18 , The guide slot 15 is so wide that the contact element 7 in the direction to the right and left back and forth. The contact element 7 can in this way the movement of the electrical conductor 29 follow in its extension direction.

Claims (12)

Tap connector (1) with an insulating housing (2) and with a plurality of movably mounted in the insulating housing (2) contact elements (7), which are designed for the electrically conductive contacting of electrical conductors (29) of a current-carrying profile, wherein a respective spring element between a support (20, 35) of the insulating material (2) and one of the contact elements (7) is arranged and each contact element (7) can be acted upon by its spring element with a spring force, wherein the spring elements in each case as a U-shaped leaf spring (18) with a spring leg (22), one on the spring leg (22) subsequent spring bow (21) and one on the Each contact element (7) rests relative to its spring leg (22) on the spring leg (22) and the abutment leg (19) on the support (20, 35) of the insulating housing (2) is superimposed and has a conductor connection contact (25). Tap connector (1) after Claim 1 , characterized in that each contact element (7) is mounted in a respective web of the insulating housing (2). Tap connector (1) after Claim 1 or 2 , characterized in that the conductor connection contact (25) is formed integrally with the leaf spring (18) from the sheet material of the leaf spring (18) and at least one spring arm (27) for clamping an electrical connection conductor (6). Tap connector (1) after Claim 3 , characterized in that the conductor terminal contact (25) has two spaced apart spring arms (27) which have a decreasing distance towards their spring arm ends and are designed to clamp an electrical connection conductor (6) between the spring arm ends. Tap connector (1) according to one of Claims 3 or 4 , characterized in that from the abutment leg (19) of the leaf spring (18) at least one side wall (26) is bent, the free of the plant leg (19) part each forms one of the spring arms (27). Tap connector (1) according to one of the preceding claims, characterized in that the insulating housing (2) has a plurality of mutually parallel webs (9, 17) and the contact elements (7) in the webs (9, 13) are mounted. Tap connector (1) according to one of the preceding claims, characterized in that the contact elements (7) at a distance in a row (R1, R2) side by side and in at least two rows (R1, R2) are successively positionable in the insulating housing (2). Tap connector (1) according to one of the preceding claims, characterized in that the insulating housing (2) is multi-part and has a base body (3) and insert elements (4), wherein the insert elements (4) for receiving and supporting one of the contact elements ( 7) and for optional insertion into slots (10) of the base body (3) are formed. Tap connector (1) according to one of the preceding claims, characterized in that the at least one contact element (7) is designed as a flat sheet-metal part with a contact end having at least one contact tip (8). Tap connector (1) after Claim 9 , characterized in that the contact end diametrically opposite end of the contact element (7) is widened and forms a support (23) for the spring element. Tap connector (1) with an insulating housing (2) which is formed from a base body (3) and optionally insertable into the main body insert elements (4), and with a plurality of contact elements (7) for electrically conductive contacting of electrical conductors (29) of a Stromführungsprofils are formed, wherein the insert elements (4) for receiving and storage of one of the contact elements (7) and for optional insertion into slots (10) of the base body (3) are formed, wherein each one spring element between a respective support (20, 35) of each insert element (4) and its contact element (7) is arranged and the contact element (7) can be acted upon by the spring element with a spring force, wherein the spring element has a U-shaped leaf spring (18) with a spring leg (22), a on the spring leg (22) adjoining spring bow (21) and on the spring bow (21) adjoining bearing limb (19), wherein the contacts Lement (7) relative to the spring leg (22) rests on the spring leg (22) and wherein the abutment leg (19) on the support (20, 35) of the insert element (4) is superimposed and has a conductor connection contact (25). Tap connector (1) according to one of the preceding claims, characterized in that each contact element (7) in a free space (15) tiltable or is mounted displaceably transversely to the extension direction.

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