EP1885025B1 - Device for electrically connecting at least two isolated main conductors of a power supply cable, in particular tapping clamp - Google Patents
Device for electrically connecting at least two isolated main conductors of a power supply cable, in particular tapping clamp Download PDFInfo
- Publication number
- EP1885025B1 EP1885025B1 EP07009151.7A EP07009151A EP1885025B1 EP 1885025 B1 EP1885025 B1 EP 1885025B1 EP 07009151 A EP07009151 A EP 07009151A EP 1885025 B1 EP1885025 B1 EP 1885025B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure plate
- conductor
- receiving body
- housing part
- screw connection
- 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
Links
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- 238000010079 rubber tapping Methods 0.000 title 1
- 238000009413 insulation Methods 0.000 claims description 13
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- 238000000926 separation method Methods 0.000 claims 2
- 230000000284 resting effect Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
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- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 2
- 239000011151 fibre-reinforced plastic Substances 0.000 description 2
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- 238000005382 thermal cycling Methods 0.000 description 2
- 210000002105 tongue Anatomy 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
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- 150000001875 compounds Chemical class 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
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- 229910052751 metal Inorganic materials 0.000 description 1
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- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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Images
Classifications
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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
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
- H01R4/2404—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation
- H01R4/2408—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation actuated by clamping screws
-
- 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
- H01R4/38—Clamped connections, spring connections utilising a clamping member acted on by screw or nut
- H01R4/44—Clamping areas on both sides of screw
-
- 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
- H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
- H01R9/031—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for multiphase cables, e.g. with contact members penetrating insulation of a plurality of conductors
Definitions
- the invention relates to a device according to the preamble of claim 1.
- the housing has two half-shell-shaped housing parts, which are connectable by means of a centrally passing connecting screw. At least one end of the connecting screw, a pressure plate is arranged, by means of which the force exerted by the connecting screw screw force is introduced as evenly as possible in the housing half.
- the pressure plate is, as well as with the EP 1 139 496 A2 formed particularly solid and rigid so as to prevent deformation due to the screwing of the connecting screw as far as possible so that the force applied by the screw is completely inserted into the housing half and is completely available for penetrating the insulation of the main and branch conductors available.
- a connecting device in which a sitting on a relation to the terminal parts projecting end of the threaded bolt coil spring maintains the clamping pressure.
- the supernatant of the threaded bolt caused by the helical spring is disadvantageous in particular with regard to casting of the mounted clamp and in particular can not be easily separated.
- a connecting device in which an arcuate connecting plate connects several, in the longitudinal direction of the conductor one behind the other terminal parts together and thereby full surface in contact with an arcuately curved lateral surface of the terminal parts.
- the invention is based on the problem to provide a generic device, which has even better properties.
- the device should ensure a permanent and good electrical connection between the main conductor and the respective branch conductor.
- the assembly of the device is further simplified and safety during assembly on be elevated.
- the dimensions of the cable branch terminal and thus the volume of a potting compound, the in a sleeve closing the cable branching clamp is to be further minimized for economic and ecological reasons.
- the pressure plate is force-storing deformable due to the material used for this purpose and the geometric configuration.
- the pressure plate may have at least two sections, which have a different bending stiffness due to their different geometric configuration, and of which at least one is force-storing deformable when tightening the screw.
- the stored force in the pressure plate is initiated after completion of the tightening and thus after complete installation of the device in the device, thereby maintaining the contact force for the electrical connection between the main conductor and branch conductor permanently to a high degree.
- pressure plates are arranged on both sides of the screw connection, in particular a pressure plate is assigned in each case to a housing part.
- the pressure plate connects the function of a connecting or reinforcing element with that of a spring element, in particular, no separate spring element is required.
- the pressure plate in the undeformed state is not the entire surface of a housing part.
- the pressure plate can deform resiliently, without deforming by the deformation of the pressure plate by positive engagement and the housing part to which the pressure plate is in abutment.
- the size of the device is not increased, in particular in the direction of the longitudinal axis of the threaded bolt, which is particularly advantageous.
- the spring force can be initiated by the use of a plate exactly where it is most effective for maintaining the electrical contact, namely above or below the branch conductor or the associated contact elements.
- the pressure plate for this purpose, optionally in conjunction with a receiving body, acts directly on the branch conductor.
- the pressure plate on a preferably integrally formed rigid stop, by which the spring travel of the pressure plate and in particular a resiliently deformable portion of the pressure plate is limited.
- a portion of the pressure plate when tightening the screw in abutment against the stop can be brought, so that overstretching of the pressure plate and thereby a plastic deformation is reliably prevented.
- the stopper also makes it possible to transmit higher forces via the pressure plate than would be possible on account of the spring constant and the elastic deformation.
- the stop is formed by bending a stop forming portion from a base portion of the pressure plate forming the further portion.
- the pressure plate can be made as a stamped / bent part of a suitable spring steel.
- the pressure plate is formed symmetrically to a longitudinal plane and symmetrical to a transverse plane, in particular axially symmetrical to an axis passing through an opening in the pressure plate, which coincides with the longitudinal axis of the screw of the screw connection.
- the pressure plate in the center on a particular rigid contact surface for a screw connection element are connected to the introduction sections for the introduction of the spring force via a resiliently deformable portion.
- the introduction sections are arranged on opposite sides of the contact surface. At right angles to the elastically deformable sections, the contact surface is connected to sections projecting at right angles to the base surface, which form the stop for the introduction sections.
- the pressure plate can be inserted in a preferably made of an electrically insulating material receiving body.
- the pressure plate is preferably not the entire surface of the receiving body, but especially in a first region, which is opposite to a second region, with the Receiving body can be brought into contact with the branch conductor.
- the spring force is initiated exactly where it is most effective. In any case, a spring-elastic deformation of the pressure plate does not initially lead to a deformation of the receiving body.
- the insertion of the pressure plate in the receiving body is preferably spring latched, including the receiving body and the pressure plate having cooperating locking means.
- the receiving body has a first contact surface for the installation of the associated branch conductor, which are formed in particular by transverse to the longitudinal extent of the branch conductor aligned ridges or ribs whose contour of the outer contour of the branch conductor can be modeled.
- the pressure plate derives its spring force predominantly or exclusively in the region of the first contact surface in the receiving body.
- this can in any case be in the unstressed state of the contact surface for the screw connection having portion of the pressure plate in abutment with the receiving body, so tightening the screw leads to deformation of the pressure plate, but not on the receiving body and thus not on the associated housing part the device is transmitted. Rather, the deformation of the pressure plate leads to an initiation of the spring force only in the areas in which the receiving body with its first contact surface is in contact with the associated branch conductor.
- the device is symmetrical in that the forces introduced by the oppositely disposed pressure plates are aligned with each other and the force flow in a straight line from the first pressure plate via the first receiving body, the first branch conductor and is introduced via a first contact element in the associated first main conductor, from there via an introduced support wedge on the second main conductor, from this via a second contact element on the second branch conductor, which in turn is in contact with a second receiving body, on the the spring force of the second pressure plate acts.
- the resulting power flow stabilizes the main and branch conductors to be connected together in the desired position and leads to a permanently secure electrical connection.
- the screw connection of the housing parts can basically be designed as known from the prior art, in particular from US Pat DE 103 41 997 A1 ,
- a so-called carriage bolt is used, which is non-rotatably connected at one end to a first housing part, in particular rotationally fixed to the first housing part associated with the first pressure plate, and on the opposite end of a nut is screwed on when tightening in Appendix the second housing part associated second pressure plate comes.
- the housing has two in a front view along the longitudinal direction of the main and branch conductors to be joined together in a substantially U-shaped housing halves.
- the two legs of the U-shaped housing half have guide means by means of which the two housing halves are plugged together.
- the section connecting the two legs of the housing half has the receiving opening for the contact elements.
- the housing halves are formed as equal parts.
- each housing half on at least one leg on a guide web and on the other leg a guide groove into which the guide web of the other housing half can be inserted.
- the two housing parts can be easily attached to the main conductor.
- the main conductors are previously spaced by the driving of a support wedge to the extent necessary from each other. Should not all the main conductors have matching outer dimensions, the optimum positioning of the main conductors within the housing of the device can also be brought about by the use of a supporting wedge having different dimensions on its two sides, in particular a different thickness or a different wedge angle.
- the support wedges are color-coded according to their geometric design, possibly also two-tone with different colors on the thick and thin side, so that a confusion or inadvertent rotation of the support wedges for the untrained mechanic is almost impossible.
- At least one housing part on a preferably integrally formed stop means When manual merging or mating of the housing parts while embracing the main conductor, the stop means comes into contact with an insulation of the associated main conductor. Under normal force application, the two housing parts are now not further merge.
- the two housing parts on locking means by means of which the mated state of the two housing parts is latched, in particular that state is latched as a pre-assembly in which the stop means is in contact with the insulation of the main conductor.
- this latching is releasable, so that if necessary, the housing parts from the pre-assembly can be taken out again, if necessary.
- the stop means are positioned such that in the pre-assembly position penetration of the arranged on the housing part contact elements in the insulation of the main conductor is reliably prevented, so there is no danger that the contact elements in the pre-assembly already electrically contact the main conductor and thus are live.
- the branch conductors are bent toward the housing parts, in particular brought into a position close to the contact elements arranged in the housing parts.
- the open before the onset of the pressure plate or the receiving body for the pressure plate insertion channel for the branch conductor can be used as a template both for the bending and for cutting the branch conductor, whereby an optimal cutting is guaranteed even for the inexperienced technician.
- the pressure plate which forms a kind of cover for the insertion channel of the branch conductor together with the receiving body, is placed in the insertion channel only after inserting the branch conductor and preferably releasably locked to the associated housing part.
- the housing part On the side facing the branch conductor, the housing part preferably forms integrally formed insertion and positioning means, for example wedge-shaped webs, by means of which an optimal alignment and positioning of the branch conductor with respect to the housing part, in particular with respect to the arranged in the housing part contact element is ensured.
- the branch conductor is inserted into the housing part and then placed the pressure plate, in particular in conjunction with the associated receiving body, and by screwing the screw are the Branch conductor fixed in the device without it immediately comes to an electrical contact of the main or branch conductor.
- the housing part and / or the receiving body has at least one opening, by means of which the correct positioning of the associated branch conductor can be controlled, in particular whether the branch conductor is positioned in the region of the associated contact elements. Such a check can be done before tightening the screw, so if necessary, even a correction can be made.
- the screw is tightened.
- the overcoming may be, for example, by breaking a previously existing connection of the stop means with the housing part.
- the stop means is connected to more than one point to the housing part and remains even after overcoming still connected at least one point with the housing part, for example by an elastically deformable connecting portion, which chipping and throwing away the stop means is prevented, otherwise Even a void-free filling of the device enclosing sleeve could hinder.
- the elements of the screw with the respective associated pressure plate are locked captively, wherein the detent can also be solved.
- the power supply cable containing the continuous main conductors is preferably a multi-conductor cable, as is customary, for example, for domestic connection lines with a cross-sectional area of the main conductor of, for example, approximately 150 mm 2 and of the branch conductor of, for example, approximately 50 mm 2 .
- the main conductors and / or branch conductors may be single or multi-wire.
- a typical application of the device according to the invention is in a three- or four-phase (including earth) power supply cable with operating voltages less than 1000 V of the low-voltage power supply network.
- the device according to the invention can also be used for cables laid underground.
- the device is closed after electrical connection to a sleeve and cast resin poured therein.
- the housing parts of the device according to the invention are preferably made of electrically insulating plastic, in particular a fiber-reinforced plastic, and it is preferably with the device mounted and closed connection between the main and branch conductors from the outside no live parts can be felt.
- voltage loads of 5000 V between old metal parts which have no connection do not lead to an insulation breakdown.
- the contact element is plate-shaped, and preferably formed as a stamped part.
- the material used is preferably a high-strength copper alloy, for example a CuFe2P alloy which has a high electrical conductance of, for example, more than 32 MS / m with good mechanical strength
- a Vickers hardness HV of more than 140.
- Typical material thicknesses are in the range between 0.5 and 5 mm, in particular about 1 to 2 mm.
- the surface of the contact elements is provided with a preferably electrodeposited tin pad with a layer thickness of 3 to 20 microns, in particular about 5 microns.
- the device has at least two contact elements per connection of a main conductor with an associated branch conductor.
- the distance between the contact elements to each other in the longitudinal direction of the conductor to be contacted is chosen to be as large as possible in order to switch the conductor to be contacted in parallel in the contact region and thus to reduce the total resistance of the arrangement.
- the distance between the contact elements to each other in the longitudinal direction of the conductor to be contacted is chosen to be as large as possible in order to switch the conductor to be contacted in parallel in the contact region and thus to reduce the total resistance of the arrangement.
- the twist of the cable conductor it is ensured that different individual wires of the conductors are contacted by the axially spaced contact elements.
- the screw head preferably tears off after the breakaway torque has been exceeded.
- This predefinable torque depends on the geometry of the contact elements, the insulating material of the main or branch conductor, the conductor cross-section, as well as the geometry of the housing parts.
- one and the same device can be used for different conductor cross-sections by the predeterminable Abr utilizatmoment.
- the device according to the invention in particular a working under tension is possible. For this, it is ensured that the live parts are always covered in a safe manner during each phase of the assembly. This also includes protection against direct contact due to incorrect handling of tools. There is no possibility of bridging live parts due to incorrect handling of a tool. A stripping of the branch conductor is not required, which is why when Absetzmann for stripping the insulation no errors can occur that could lead to bare protruding wire ends after closing the device, which then lead stress.
- the device has a support wedge in a parting plane of the two housing parts, which forms a preferably elastically deformable abutment for the main conductor.
- the Fig. 1 shows a perspective view of a first embodiment of a device 1 according to the invention for electrically connecting at least two insulated main conductors 2, 4, 6, 8 of a power cable with at least one insulated branch conductor 12, 14, 16, 18, with a housing, the at least two by a screw 22 connectable housing parts 10, 20, wherein for each connection to be produced between a main conductor 2, 4, 6, 8 and the associated branch conductor 12, 14, 16, 18 at least one contact element 32, 34, 36, 38 ( Fig. 2 ) is arranged in a housing part 10, 20. Since the first housing part 10 and the second housing part 20 are formed in the illustrated embodiment as equal parts, the first housing part 10 will be described in the following priority. The same applies in each case also for the second housing part 20.
- the device 1 has a first pressure plate 30, which is operatively connected to the screw connection 22, by means of which the connection force of the screw connection 22 is introduced into the device 1, in particular into the first housing part 10.
- the first pressure plate 30 is resiliently deformable and elastically deforms Tightening the screw 22. After completing the tightening of the screw 22, the force stored by the elastic deformation of the first pressure plate 30 force in the device 1 can be introduced. Thereby, the contact force for the electrical connection between the main conductors 2, 4, 6, 8 and the branch conductors 12, 14, 16, 18 is maintained.
- the first housing part 10 is constructed identically to the second housing part 20. These are, in particular, identical parts made of a fiber-reinforced plastic.
- a pre-assembly is shown, in which the two housing parts 10, 20 are latched together, but the contact elements 32, 34, 36, 38 ( Fig. 2 ) are not yet in contact with the main conductors 2, 4, 6, 8 and the branch conductors 12, 14, 16, 18.
- This pre-assembly is taken by the installation of a one-piece formed by the first housing part 10 stop means 24 which is connected at a total of four locations with the first housing part 10. Approximately in the middle of its arcuate extent the stop means 24 at a first and second connection point 26, 28 connected to the first housing part 10 ( Fig.
- junctions 26, 28 are rigid and bring the holding force through which in normal force application in the Fig. 1 shown pre-assembly position is not surmountable.
- the stop means 24 is still preferably after the breaking of the first and second connection point 26, 28, preferably in one piece with the first Housing part 10 connected.
- the Fig. 3 shows a perspective view of the first housing part 10 and the Fig. 4 shows a rear view of a cross section through the first housing part 10.
- the first housing part 10 is substantially U-shaped and has on the side of a first leg two preferably integrally formed by the first housing part 1, parallel to each other and in its cross-section to its longitudinal axis in turn also substantially U-shaped profile webs 46, 48, which are connected near their free end to increase the stability by a preferably integrally formed connecting web 52 ( Fig. 1 ).
- the two profile webs 46, 48 as a guide means on a guide groove 54 into which a guide web 56 is inserted, which is preferably integrally formed by a third profile web 58, which is opposite to the first leg second leg of the first housing part 10 is formed.
- the third profile web 58 has on its outer side, at least in sections, a regular surface structure 62, in particular a toothed strip.
- the connecting web 52 in particular a one-piece formed by the connecting web 52 locking tab 64 on its inwardly facing surface, a locking tooth as a latching means, so that the two housing parts 10, 20 are releasably spring latching together.
- the section connecting the two legs of the first housing part 10 forms on its outwardly facing surface a receiving space for two branch conductors 12, 14, 16, 18 from.
- For each branch conductor 12, 14, 16, 18 are two axially spaced and at least partially spherical curved bearing surfaces 66, 68 are provided.
- Each of these bearing surfaces 66, 68 is interrupted approximately in the middle of its axial extent by a receiving opening 72 for receiving a contact element 32, 34, 36, 38. Consequently, at least two contact elements 32, 34, 36, 38 are provided for each branch conductor, by means of which the branch conductor 12, 14, 16, 18 with the respectively associated, in particular in the mounted terminal underlying main conductors 2, 4, 6, 8, electrically connected is.
- the contact elements 32, 34, 36, 38 may be bent in a U-shape and at both ends have a toothing for the electrical contact.
- the first housing part 10 also forms an abutment surface 74 at an axial end, to which the branch conductors 12, 14, 16, 18 can be brought into abutment.
- the first housing part 10 forms on the axial end sides of the insertion channels for inserting the branch conductors 12, 14, 16, 18 V-shaped Pads 76, on which the branch conductors 12, 14, 16, 18 can be placed in a pre-assembly.
- the support surface of the V-shaped support 76 is slightly increased relative to the support surface 66, 68, so that in the pre-assembly position penetration of the contact elements 32, 34, 36, 38 in the isolation of the branch conductors 12, 14, 16, 18 is reliably prevented.
- the V-shaped pads 36 can either deform or break sufficiently, so that then the branch conductor 12, 14, 16, 18 comes into contact with the bearing surfaces 66, 68 and thereby the contact elements 32, 34, 36, 38 in the branch conductors 12, 14, 16, 18 penetrate.
- first guide pins 78 are arranged adjacent to an opening for the passage of a screw of the screw 22 and serve as a placeholder for the screw to be used.
- the second guide pins 82 formed at the axial ends of the first housing part 10 and preferably integrally therefrom also protrude into the interior of the device 1 and are arranged somewhat outside the middle in the transverse direction; they essentially serve a simplified combination of the two housing parts 10, 20 and are slightly longer than the first guide pins 78th
- the Fig. 2 shows a cross section through a completely assembled device 1, but without screw 22.
- the first contact element 32 penetrates the insulation of both the first main conductor 2 and the insulation of the first branch conductor 12 and provides an electrical connection between the first main conductor 2 and the first Branch conductor 12 ago.
- the other main conductors 4, 6, 8 via the respectively associated contact element 34, 36, 38 connected to the respectively associated branch conductor 14, 16, 18.
- the screwing force is introduced via a first pressure plate 30 and a first receiving body 60 to the first branch conductor 12 and via the first contact element 32 to the first main conductor 2, which is supported on the first support wedge 70.
- the screwing force is introduced via a second pressure plate 50 of the second housing part 20, the associated second receiving body 80 in the second branch conductor 14, via this into the second contact element 34 and the second main conductor 4 extending from the opposite side to the first supporting wedge 70 is supported.
- the forces introduced by the opposing pressure plates 50 are substantially aligned, resulting in a favorable force flow.
- the Fig. 5 shows a perspective view of the first housing part 10 facing the underside of the first receiving body 60.
- Axially end and in the transverse direction centric to the first receiving body 60 preferably integrally formed from two spring tongues 84 which have on their surface a regular structure 86, in particular a rack.
- the spring tongues 84 are in corresponding receiving openings on the first housing part 10 (FIG. Fig. 3 ) can be inserted and fixed releasably latched by the structure 86 on the first housing part 10.
- the position of the first receiving body 60 with respect to the first housing part 10 is predetermined.
- Axial in the region of the bearing surfaces 66, 68 (FIG. Fig.
- the first receiving body 60 forms as a contact surface circular-shaped Antikstege 92, via which the screwing of the first receiving body 60 on the associated branch conductor 12, 14, 16, 18 is transmitted.
- the first receiving body 60 preferably forms an integral positioning means 94, for positioning the branch conductor 12, 14, 16, 18 when placing the first receiving body 60 on the first housing part 10.
- the positioning means 94 may be arranged in the axial direction in particular centrally and, for example, triangular or curved, so that as a result of Aufsteckens the first receiving body 60 of the branch conductor 12, 14, 16, 18 along the inclined edge or curvature in its position is displaceable.
- the first receiving body 60 openings 96 by means of which, in particular in a pre-assembly of the device 1, the correct positioning of the branch conductors 12, 14, 16, 18 can be controlled.
- the Fig. 6 shows a perspective view of the first receiving body 60 on the side facing away from the first housing part 10 side.
- the receiving body 60 has a peripheral edge 98 for receiving the first pressure plate 30.
- the present in the center opening 102 for the passage of the connecting screw is also at least partially bounded by a collar 104 which can form a guide when placing the first pressure plate 30 and in particular locking means 106 forms by means of which the first pressure plate 30 latching to the first receiving body 60th is determinable.
- the pressing forces on the branch conductor 12, 14, 16, 18 transmits forms the first receiving body 60 on the Top one preferably plane contact surface 108 for the installation of the first pressure plate 30 from.
- the remaining area, in particular the area around the opening 102 for the connecting screw, is lowered in contrast, so that the first pressure plate 30 can lower in this area as a result of the elastic deformation, without coming into contact with the surface of the first receiving body 60.
- the Fig. 7 shows a plan view of the first pressure plate 30, the Fig. 8 shows a cross section along VIII-VIII of Fig. 7 , the Fig. 9 shows a cross section along IX-IX of Fig. 7 , and the Fig. 10 shows a perspective view of the first pressure plate 30th
- the pressure plate 30 is preferably made by punching and bending in one piece from a rectangular board.
- the pressure plate 30 is symmetrical to the two in the Fig. 7 Plotted sectional planes and beyond symmetrical to the sectional plane formed by the cutting plane, which by a central and provided for the passage of the connecting screw opening 114 perpendicular to the plane of the Fig. 7 runs.
- the longitudinal edges are raised and cut free at their axial ends and bent inwards, thereby forming a stop 112, by which a deflection of an introduction portion 116 of the pressure plate 30 is limited, which abuts against the contact surface 108 of Receiving body 60 is.
- the introduction section 116 is connected via a resiliently deformable, in particular web-shaped section 118 with a provided in the center of the pressure plate 30 and preferably rigid contact surface 122 for a screw connection element.
- the contact surface 122 may, for example, have a crank 124 or a bead, in particular transversely to the extent of the resiliently deformable portion 118.
Landscapes
- Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
Description
Die Erfindung betrifft eine Vorrichtung gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a device according to the preamble of
Gattungsgemäße Vorrichtungen sind beispielsweise aus der
Wenn es nach Abschluss des Verbindungsvorgangs zu einem Setzverhalten der Vorrichtung kommt, beispielsweise aufgrund von Temperaturwechselbeanspruchungen oder aufgrund eines Materialkriechens, wird dadurch die ursprünglich durch die Schraubverbindung erreichte Klemmkraft herabgesetzt, was unerwünscht ist, weil sich dadurch der Übergangswiderstand zwischen einander zugeordneten Haupt- und Abzweigleitern erhöhen kann.When it comes to a setting behavior of the device after completion of the connection process, for example due to Thermal cycling or due to a material creep, thereby the originally achieved by the screw clamping force is reduced, which is undesirable because this can increase the contact resistance between the associated main and branch conductors.
Aus der
Aus der
Aus der
Der Erfindung liegt das Problem zugrunde, eine gattungsgemäße Vorrichtung bereitzustellen, welche noch bessere Eigenschaften aufweist. In einer Ausführungsart soll die Vorrichtung eine dauerhafte und gute elektrische Verbindung zwischen dem Hauptleiter und dem jeweiligen Abzweigleiter gewährleisten. In einer Ausführungsart soll die Montage der Vorrichtung weiter vereinfacht und die Sicherheit bei der Montage weiter erhöht sein. In einer Ausführungsart sollen die Abmessungen der Kabelabzweigklemme und damit das Volumen einer Vergussmasse, die in eine die Kabelabzweigklemme verschließende Muffe einzubringen ist, aus ökonomischen und ökologischen Gründen weiter minimiert werden.The invention is based on the problem to provide a generic device, which has even better properties. In one embodiment, the device should ensure a permanent and good electrical connection between the main conductor and the respective branch conductor. In one embodiment, the assembly of the device is further simplified and safety during assembly on be elevated. In one embodiment, the dimensions of the cable branch terminal and thus the volume of a potting compound, the in a sleeve closing the cable branching clamp is to be further minimized for economic and ecological reasons.
Das Problem ist durch die im Anspruch 1 bestimmte Vorrichtung gelöst. Besondere Ausführungsarten der Erfindung sind in den Unteransprüchen bestimmt.The problem is solved by the device defined in
In einer Ausführungsart ist die Druckplatte aufgrund des hierfür verwendeten Werkstoffs und der geometrischen Ausgestaltung kraftspeichernd verformbar. Die Druckplatte kann mindestens zwei Abschnitte aufweisen, die aufgrund ihrer unterschiedlichen geometrischen Ausgestaltung eine unterschiedliche Biegesteifigkeit aufweisen, und von denen mindestens einer beim Anziehen der Schraubverbindung kraftspeichernd verformbar ist. In einer Ausführungsart ist ein Abschnitt der Druckplatte, in den die Schraubverbindungskraft eingeleitet wird, biegesteif ausgebildet, und ein daran anschließender Abschnitt kraftspeichernd verformbar. Dadurch kommt es beim Festziehen der Schraubverbindung zu einer elastischen Verformung der Druckplatte in einem vorgegebenen Bereich. Die in der Druckplatte gespeicherte Kraft wird nach Beendigung des Festziehens und damit nach vollständiger Montage der Vorrichtung in die Vorrichtung eingeleitet und dadurch die Kontaktkraft für die elektrische Verbindung zwischen Hauptleiter und Abzweigleiter dauerhaft in hohem Maße aufrechterhalten. In einer Ausführungsart sind auf beiden Seiten der Schraubverbindung Druckplatten angeordnet, insbesondere ist jeweils einem Gehäuseteil eine Druckplatte zugeordnet.In one embodiment, the pressure plate is force-storing deformable due to the material used for this purpose and the geometric configuration. The pressure plate may have at least two sections, which have a different bending stiffness due to their different geometric configuration, and of which at least one is force-storing deformable when tightening the screw. In one embodiment, a portion of the pressure plate, in which the Schraubverbindungskraft is introduced, formed rigid, and an adjoining portion force-storing deformable. This results in tightening the screw to an elastic deformation of the pressure plate in a predetermined range. The stored force in the pressure plate is initiated after completion of the tightening and thus after complete installation of the device in the device, thereby maintaining the contact force for the electrical connection between the main conductor and branch conductor permanently to a high degree. In one embodiment, pressure plates are arranged on both sides of the screw connection, in particular a pressure plate is assigned in each case to a housing part.
In einer Ausführungsart verbindet die Druckplatte die Funktion eines Verbindungs- oder Armierungselements mit dem eines Federelements, insbesondere ist kein separates Federelement erforderlich. Vorzugsweise liegt die Druckplatte im unverformten Zustand nicht vollflächig an einem Gehäuseteil an. Die Druckplatte kann sich federelastisch verformen, ohne dass sich durch die Verformung der Druckplatte durch Formschluss auch das Gehäuseteil verformt, an dem die Druckplatte in Anlage ist.In one embodiment, the pressure plate connects the function of a connecting or reinforcing element with that of a spring element, in particular, no separate spring element is required. Preferably the pressure plate in the undeformed state is not the entire surface of a housing part. The pressure plate can deform resiliently, without deforming by the deformation of the pressure plate by positive engagement and the housing part to which the pressure plate is in abutment.
Durch die Verwendung einer Druckplatte ist die Baugröße der Vorrichtung insbesondere in Richtung der Längsachse des Gewindebolzens nicht erhöht, was besonders vorteilhaft ist. Außerdem kann durch die Verwendung einer Platte die Federkraft genau dort eingeleitet werden, wo sie für die Aufrechterhaltung der elektrischen Kontaktierung am wirksamsten ist, nämlich oberhalb bzw. unterhalb der Abzweigleiter bzw. der zugehörigen Kontaktelemente. In einer Ausführungsart wirkt die Druckplatte hierzu, gegebenenfalls in Verbindung mit einem Aufnahmekörper, unmittelbar auf den Abzweigleiter.By using a pressure plate, the size of the device is not increased, in particular in the direction of the longitudinal axis of the threaded bolt, which is particularly advantageous. In addition, the spring force can be initiated by the use of a plate exactly where it is most effective for maintaining the electrical contact, namely above or below the branch conductor or the associated contact elements. In one embodiment, the pressure plate for this purpose, optionally in conjunction with a receiving body, acts directly on the branch conductor.
In einer Ausführungsart weist die Druckplatte einen vorzugsweise einstückig ausgebildeten biegesteifen Anschlag auf, durch den der Federweg der Druckplatte und insbesondere eines federelastisch verformbaren Abschnitts der Druckplatte begrenzt ist. In einer Ausführungsart ist ein Abschnitt der Druckplatte beim Festziehen der Schraubverbindung in Anlage an den Anschlag bringbar, sodass ein Überdehnen der Druckplatte und dadurch eine plastische Verformung zuverlässig verhindert ist. Durch den Anschlag ist es außerdem möglich, über die Druckplatte höhere Kräfte zu übertragen, als dies aufgrund der Federkonstante und der elastischen Verformung möglich wäre. Dadurch können insbesondere während des Festziehens der Schraubverbindung oder der Montage der Vorrichtung hohe Kräfte mittels der Druckplatte übertragen werden, beispielsweise um ein Durchdringen der Isolation von Haupt- und Abzweigleiter durch die Kontaktelemente zu gewährleisten, welche die einander zugeordneten Haupt- und Abzweigleiter im montierten Zustand der Vorrichtung miteinander elektrisch verbinden. Beispielsweise kann durch den Anschlag eine drei- oder fünffach so hohe Kraft mittels der Druckplatte übertragen werden, als dies allein aufgrund der elastischen Verformung möglich wäre.In one embodiment, the pressure plate on a preferably integrally formed rigid stop, by which the spring travel of the pressure plate and in particular a resiliently deformable portion of the pressure plate is limited. In one embodiment, a portion of the pressure plate when tightening the screw in abutment against the stop can be brought, so that overstretching of the pressure plate and thereby a plastic deformation is reliably prevented. The stopper also makes it possible to transmit higher forces via the pressure plate than would be possible on account of the spring constant and the elastic deformation. As a result, in particular during the tightening of the screw connection or the assembly of the device, high forces can be transmitted by means of the pressure plate, for example to ensure penetration of the insulation of the main and branch conductors through the contact elements, which electrically connect the mutually associated main and branch conductors in the mounted state of the device. For example, can be transmitted by the stop a three or five times as strong force by means of the pressure plate, as would be possible only due to the elastic deformation.
In einer Ausführungsart ist der Anschlag durch Abbiegen eines den Anschlag ausbildenden Abschnitts aus einer den weiteren Abschnitt ausbildenden Grundfläche der Druckplatte gebildet. Die Druckplatte kann als Stanz-/Biegeteil aus einem geeigneten Federstahl hergestellt sein. In einer Ausführungsart ist die Druckplatte symmetrisch zu einer Längsebene und symmetrisch zu einer Querebene ausgebildet, insbesondere achsensymmetrisch zu einer durch eine Öffnung in der Druckplatte hindurchtretende Achse, die mit der Längsachse der Schraube der Schraubverbindung zusammenfällt. In einer Ausführungsart weist die Druckplatte im Zentrum eine insbesondere biegesteife Anlagefläche für ein Schraubverbindungselement auf, mit der Einleitungsabschnitte für das Einleiten der Federkraft über einen federelastisch verformbaren Abschnitt verbunden sind. Die Einleitungsabschnitte sind auf einander gegenüberliegenden Seiten der Anlagefläche angeordnet. Rechtwinklig zu den federelastisch verformbaren Abschnitten ist die Anlagefläche mit rechtwinklig zur Grundfläche abstehenden Abschnitten verbunden, welche den Anschlag für die Einleitungsabschnitte bilden.In one embodiment, the stop is formed by bending a stop forming portion from a base portion of the pressure plate forming the further portion. The pressure plate can be made as a stamped / bent part of a suitable spring steel. In one embodiment, the pressure plate is formed symmetrically to a longitudinal plane and symmetrical to a transverse plane, in particular axially symmetrical to an axis passing through an opening in the pressure plate, which coincides with the longitudinal axis of the screw of the screw connection. In one embodiment, the pressure plate in the center on a particular rigid contact surface for a screw connection element, are connected to the introduction sections for the introduction of the spring force via a resiliently deformable portion. The introduction sections are arranged on opposite sides of the contact surface. At right angles to the elastically deformable sections, the contact surface is connected to sections projecting at right angles to the base surface, which form the stop for the introduction sections.
In einer Ausführungsart ist die Druckplatte in einen vorzugsweise aus einem elektrisch isolierenden Werkstoff bestehenden Aufnahmekörper einsetzbar. Im unverformten Zustand liegt die Druckplatte vorzugsweise nicht vollflächig an dem Aufnahmekörper an, sondern vorallem in einem ersten Bereich, der einem zweiten Bereich gegenüberliegt, mit dem der Aufnahmekörper in Anlage an die Abzweigleiter bringbar ist. Dadurch wird die Federkraft exakt dort eingeleitet, wo sie am wirksamsten ist. Eine federelastische Verformung der Druckplatte führt jedenfalls anfänglich auch nicht zu einer Verformung des Aufnahmekörpers.In one embodiment, the pressure plate can be inserted in a preferably made of an electrically insulating material receiving body. In the undeformed state, the pressure plate is preferably not the entire surface of the receiving body, but especially in a first region, which is opposite to a second region, with the Receiving body can be brought into contact with the branch conductor. As a result, the spring force is initiated exactly where it is most effective. In any case, a spring-elastic deformation of the pressure plate does not initially lead to a deformation of the receiving body.
Das Einsetzen der Druckplatte in den Aufnahmekörper ist vorzugsweise federverrastbar, wozu der Aufnahmekörper und die Druckplatte miteinander zusammenwirkende Rastmittel aufweisen. Der Aufnahmekörper weist eine erste Anlagefläche für die Anlage des zugeordneten Abzweigleiters auf, die insbesondere durch quer zur Längserstreckung des Abzweigleiters ausgerichtete Stege oder Rippen gebildet sind, deren Kontur der Außenkontur des Abzweigleiters nachgebildet sein können. Die Druckplatte leitet ihre Federkraft überwiegend oder ausschließlich in den Bereich der ersten Anlagefläche in den Aufnahmekörper ein. Insbesondere kann hierfür jedenfalls im unverspannten Zustand der die Anlagefläche für das Schraubenverbindungselement aufweisende Abschnitt der Druckplatte nicht in Anlage an dem Aufnahmekörper sein, sodass ein Festziehen der Schraubverbindung zu einer Verformung der Druckplatte führt, die aber nicht auf den Aufnahmekörper und damit nicht auf das zugehörige Gehäuseteil der Vorrichtung übertragen wird. Vielmehr führt die Verformung der Druckplatte zu einem Einleiten der Federkraft nur in den Bereichen, in denen der Aufnahmekörper mit seiner ersten Anlagefläche in Anlage an dem zugeordneten Abzweigleiter ist.The insertion of the pressure plate in the receiving body is preferably spring latched, including the receiving body and the pressure plate having cooperating locking means. The receiving body has a first contact surface for the installation of the associated branch conductor, which are formed in particular by transverse to the longitudinal extent of the branch conductor aligned ridges or ribs whose contour of the outer contour of the branch conductor can be modeled. The pressure plate derives its spring force predominantly or exclusively in the region of the first contact surface in the receiving body. In particular, this can in any case be in the unstressed state of the contact surface for the screw connection having portion of the pressure plate in abutment with the receiving body, so tightening the screw leads to deformation of the pressure plate, but not on the receiving body and thus not on the associated housing part the device is transmitted. Rather, the deformation of the pressure plate leads to an initiation of the spring force only in the areas in which the receiving body with its first contact surface is in contact with the associated branch conductor.
In einem Ausführungsbeispiel ist die Vorrichtung dahingehend symmetrisch, dass die von den einander gegenüberliegend angeordneten Druckplatten eingeleiteten Kräfte miteinander fluchten und der Kraftfluss in gerader Linie von der ersten Druckplatte über den ersten Aufnahmekörper, den ersten Abzweigleiter und über ein erstes Kontaktelement in den zugeordneten ersten Hauptleiter eingebracht wird, von dort über einen eingebrachten Stützkeil auf den zweiten Hauptleiter, von diesem über ein zweites Kontaktelement auf den zweiten Abzweigleiter, der wiederum in Anlage an einem zweiten Aufnahmekörper ist, auf den die Federkraft der zweiten Druckplatte wirkt. Der dadurch entstehende Kraftfluss stabilisiert die miteinander zu verbindenden Haupt- und Abzweigleiter in der gewünschten Position und führt zu einer dauerhaft sicheren elektrischen Verbindung.In one embodiment, the device is symmetrical in that the forces introduced by the oppositely disposed pressure plates are aligned with each other and the force flow in a straight line from the first pressure plate via the first receiving body, the first branch conductor and is introduced via a first contact element in the associated first main conductor, from there via an introduced support wedge on the second main conductor, from this via a second contact element on the second branch conductor, which in turn is in contact with a second receiving body, on the the spring force of the second pressure plate acts. The resulting power flow stabilizes the main and branch conductors to be connected together in the desired position and leads to a permanently secure electrical connection.
Die Schraubverbindung der Gehäuseteile kann grundsätzlich so ausgestaltet sein, wie dies aus dem Stand der Technik bekannt ist, insbesondere aus der
In einer Ausführungsart weist das Gehäuse zwei in einer Vorderansicht entlang der Längsrichtung der miteinander zu verbindenden Haupt- und Abzweigleiter im Wesentlichen U-förmigen Gehäusehälften auf. Die beiden Schenkel der U-förmigen Gehäusehälfte weisen Führungsmittel auf, mittels denen die beiden Gehäusehälften zusammensteckbar sind. Der die beiden Schenkel verbindende Abschnitt der Gehäusehälfte weist die Aufnahmeöffnung für die Kontaktelemente auf. In einer Ausführungsart sind die Gehäusehälften als Gleichteile ausgebildet.In one embodiment, the housing has two in a front view along the longitudinal direction of the main and branch conductors to be joined together in a substantially U-shaped housing halves. The two legs of the U-shaped housing half have guide means by means of which the two housing halves are plugged together. The section connecting the two legs of the housing half has the receiving opening for the contact elements. In one embodiment, the housing halves are formed as equal parts.
In einer Ausführungsart weist jede Gehäusehälfte an mindestens einem Schenkel einen Führungssteg auf und an dem anderen Schenkel eine Führungsnut, in welche der Führungssteg der anderen Gehäusehälfte einschiebbar ist. Dadurch können die beiden Gehäuseteile einfach auf die Hauptleiter aufgesteckt werden. Erforderlichenfalls werden zuvor die Hauptleiter durch das Eintreiben eines Stützkeils in dem erforderlichen Maß voneinander beabstandet. Sollten nicht alle Hauptleiter übereinstimmende Außenabmessungen aufweisen, kann die optimale Positionierung der Hauptleiter innerhalb des Gehäuses der Vorrichtung auch durch die Verwendung eines Stützkeils herbeigeführt werden, der auf seinen beiden Seiten unterschiedliche Abmessungen aufweist, insbesondere eine unterschiedliche Dicke oder einen unterschiedlichen Keilwinkel.In one embodiment, each housing half on at least one leg on a guide web and on the other leg a guide groove into which the guide web of the other housing half can be inserted. As a result, the two housing parts can be easily attached to the main conductor. If necessary, the main conductors are previously spaced by the driving of a support wedge to the extent necessary from each other. Should not all the main conductors have matching outer dimensions, the optimum positioning of the main conductors within the housing of the device can also be brought about by the use of a supporting wedge having different dimensions on its two sides, in particular a different thickness or a different wedge angle.
In einer Ausführungsart werden die Stützkeile entsprechend ihrer geometrischen Ausgestaltung farblich gekennzeichnet, gegebenenfalls auch zweifarbig mit unterschiedlichen Farben auf der dicken und dünnen Seite, damit ein Verwechseln oder unbeabsichtigtes Verdrehen der Stützkeile auch für den ungeübten Monteur nahezu ausgeschlossen ist.In one embodiment, the support wedges are color-coded according to their geometric design, possibly also two-tone with different colors on the thick and thin side, so that a confusion or inadvertent rotation of the support wedges for the untrained mechanic is almost impossible.
In einer Ausführungsart weist mindestens ein Gehäuseteil ein vorzugsweise einstückig ausgebildetes Anschlagmittel auf. Beim manuellen Zusammenführen oder Zusammenstecken der Gehäuseteile unter Umgreifen der Hauptleiter kommt das Anschlagmittel in Anlage an eine Isolierung des zugeordneten Hauptleiters. Unter normaler Kraftanwendung sind nun die beiden Gehäuseteile nicht weiter zusammenführbar. In einer Ausführungsart weisen die beiden Gehäuseteile Rastmittel auf, mittels denen der zusammengesteckte Zustand der beiden Gehäuseteile rastbar ist, insbesondere jener Zustand als eine Vormontagestellung rastbar ist, in dem das Anschlagmittel in Anlage an der Isolierung des Hauptleiters ist.In one embodiment, at least one housing part on a preferably integrally formed stop means. When manual merging or mating of the housing parts while embracing the main conductor, the stop means comes into contact with an insulation of the associated main conductor. Under normal force application, the two housing parts are now not further merge. In one embodiment, the two housing parts on locking means, by means of which the mated state of the two housing parts is latched, in particular that state is latched as a pre-assembly in which the stop means is in contact with the insulation of the main conductor.
Vorzugsweise ist diese Verrastung lösbar, sodass erforderlichenfalls die Gehäuseteile aus der Vormontagestellung heraus wieder abgenommen werden können, sofern dies erforderlich ist. Die Anschlagmittel sind derart positioniert, dass in der Vormontagestellung ein Eindringen der an dem Gehäuseteil angeordneten Kontaktelemente in die Isolation des Hauptleiters zuverlässig verhindert ist, sodass keine Gefahr besteht, dass die Kontaktelemente in der Vormontagestellung bereits den Hauptleiter elektrisch kontaktieren und dadurch spannungsführend sind.Preferably, this latching is releasable, so that if necessary, the housing parts from the pre-assembly can be taken out again, if necessary. The stop means are positioned such that in the pre-assembly position penetration of the arranged on the housing part contact elements in the insulation of the main conductor is reliably prevented, so there is no danger that the contact elements in the pre-assembly already electrically contact the main conductor and thus are live.
Anschließend werden ausgehend von der Vormontagestellung die Abzweigleiter auf die Gehäuseteile zugebogen, insbesondere in eine Position nahe der in den Gehäuseteilen angeordneten Kontaktelemente gebracht. Der vor dem Einsetzen der Druckplatte oder des Aufnahmekörpers für die Druckplatte offene Einführkanal für den Abzweigleiter kann als Schablone sowohl für das Ausbiegen als auch für das Ablängen der Abzweigleiter verwendet werden, wodurch ein optimales Ablängen auch für den ungeübten Monteur gewährleistet ist. Die Druckplatte, die zusammen mit dem Aufnahmekörper eine Art Deckel für den Einführkanal des Abzweigleiters bildet, wird erst nach dem Einlegen der Abzweigleiter in den Einführkanal aufgesetzt und vorzugsweise lösbar mit dem zugehörigen Gehäuseteil verrastet. Auf der dem Abzweigleiter zugewandten Seite bildet das Gehäuseteil vorzugsweise einstückig ausgebildete Einführ- und Positioniermittel aus, beispielsweise keilförmige Stege, mittels denen eine optimale Ausrichtung und Positionierung des Abzweigleiters in Bezug auf das Gehäuseteil, insbesondere in Bezug auf das in dem Gehäuseteil angeordnete Kontaktelement gewährleistet ist. Der Abzweigleiter wird in das Gehäuseteil eingelegt und anschließend die Druckplatte aufgesetzt, insbesondere in Verbindung mit dem zugehörigen Aufnahmekörper, und durch Eindrehen der Schraubverbindung werden die Abzweigleiter in der Vorrichtung fixiert, ohne dass es dabei sofort zu einer elektrischen Kontaktierung des Haupt- oder Abzweigleiters kommt.Subsequently, starting from the pre-assembly position, the branch conductors are bent toward the housing parts, in particular brought into a position close to the contact elements arranged in the housing parts. The open before the onset of the pressure plate or the receiving body for the pressure plate insertion channel for the branch conductor can be used as a template both for the bending and for cutting the branch conductor, whereby an optimal cutting is guaranteed even for the inexperienced technician. The pressure plate, which forms a kind of cover for the insertion channel of the branch conductor together with the receiving body, is placed in the insertion channel only after inserting the branch conductor and preferably releasably locked to the associated housing part. On the side facing the branch conductor, the housing part preferably forms integrally formed insertion and positioning means, for example wedge-shaped webs, by means of which an optimal alignment and positioning of the branch conductor with respect to the housing part, in particular with respect to the arranged in the housing part contact element is ensured. The branch conductor is inserted into the housing part and then placed the pressure plate, in particular in conjunction with the associated receiving body, and by screwing the screw are the Branch conductor fixed in the device without it immediately comes to an electrical contact of the main or branch conductor.
In einer Ausführungsart weist das Gehäuseteil und/oder der Aufnahmekörper mindestens eine Öffnung auf, mittels der die korrekte Positionierung des zugehörigen Abzweigleiters kontrollierbar ist, insbesondere ob der Abzweigleiter im Bereich der zugeordneten Kontaktelemente positioniert ist. Eine dahingehende Kontrolle kann noch vor dem Festziehen der Schraubverbindung erfolgen, mithin kann gegebenenfalls auch noch eine Korrektur vorgenommen werden.In one embodiment, the housing part and / or the receiving body has at least one opening, by means of which the correct positioning of the associated branch conductor can be controlled, in particular whether the branch conductor is positioned in the region of the associated contact elements. Such a check can be done before tightening the screw, so if necessary, even a correction can be made.
In einer Ausführungsart wird anschließend die Schraubverbindung festgezogen. Dadurch kommt es zunächst zu einem Überwinden des Anschlagmittels, mit dem das Gehäuseteil in Anlage an der Isolierung des Hauptleiters war. Das Überwinden kann beispielsweise durch Brechen einer zuvor vorhandenen Verbindung des Anschlagmittels mit dem Gehäuseteil sein. In einer Ausführungsart ist das Anschlagmittel an mehr als einer Stelle mit dem Gehäuseteil verbunden und bleibt auch nach dem Überwinden noch an mindestens einer Stelle mit dem Gehäuseteil verbunden, beispielsweise durch einen elastisch verformbaren Verbindungsabschnitt, wodurch ein Abplatzen und Wegschleudern des Anschlagmittels verhindert ist, das andernfalls auch ein lunkerfreies Befüllen der die Vorrichtung umschließenden Muffe behindern könnte.In one embodiment, then the screw is tightened. This initially leads to overcoming the stop means, with which the housing part was in contact with the insulation of the main conductor. The overcoming may be, for example, by breaking a previously existing connection of the stop means with the housing part. In one embodiment, the stop means is connected to more than one point to the housing part and remains even after overcoming still connected at least one point with the housing part, for example by an elastically deformable connecting portion, which chipping and throwing away the stop means is prevented, otherwise Even a void-free filling of the device enclosing sleeve could hinder.
In einer Ausführungsart sind die Elemente der Schraubverbindung mit der jeweils zugehörigen Druckplatte verliersicher verrastet, wobei die Rastung auch lösbar sein kann.In one embodiment, the elements of the screw with the respective associated pressure plate are locked captively, wherein the detent can also be solved.
Bei dem die durchgehenden Hauptleiter enthaltenden Energieversorgungskabel handelt es sich vorzugsweise um ein Mehrleiterkabel, wie es beispielsweise für Hausanschlußleitungen üblich ist mit einer Querschnittsfläche des Hauptleiters von beispielsweise etwa 150 mm2 und des Abzweigleiters von beispielsweise etwa 50 mm2. Die Hauptleiter und/oder Abzweigleiter können ein- oder mehrdrähtig sein. Eine typische Anwendung der erfindungsgemäßen Vorrichtung ist bei einem drei- bzw. vierphasigen (einschließlich Erde) Energieversorgungskabel mit Betriebsspannungen kleiner 1000 V des Niederspannungs-Energieversorgungsnetzes.The power supply cable containing the continuous main conductors is preferably a multi-conductor cable, as is customary, for example, for domestic connection lines with a cross-sectional area of the main conductor of, for example, approximately 150 mm 2 and of the branch conductor of, for example, approximately 50 mm 2 . The main conductors and / or branch conductors may be single or multi-wire. A typical application of the device according to the invention is in a three- or four-phase (including earth) power supply cable with operating voltages less than 1000 V of the low-voltage power supply network.
Die erfindungsgemäße Vorrichtung ist auch für unterirdisch verlegte Kabel einsetzbar. Dabei wird die Vorrichtung nach dem elektrischen Verbinden mit einer Muffe und darin eingegossenes Gießharz verschlossen. Die Gehäuseteile der erfindungsgemäßen Vorrichtung bestehen vorzugsweise aus elektrisch isolierendem Kunststoff, insbesondere einem faserverstärkten Kunststoff, und es sind vorzugsweise bei montierter Vorrichtung und geschlossener Verbindung zwischen Haupt- und Abzweigleiter von außen keine spannungsführenden Teile ertastbar. Vorzugsweise führen Spannungsbelastungen mit 5000 V zwischen alten Metallteilen, die keine Verbindung aufweisen, nicht zu einem isolationsdurchschlag.The device according to the invention can also be used for cables laid underground. In this case, the device is closed after electrical connection to a sleeve and cast resin poured therein. The housing parts of the device according to the invention are preferably made of electrically insulating plastic, in particular a fiber-reinforced plastic, and it is preferably with the device mounted and closed connection between the main and branch conductors from the outside no live parts can be felt. Preferably, voltage loads of 5000 V between old metal parts which have no connection do not lead to an insulation breakdown.
In einer Ausführungsform der Erfindung ist das Kontaktelement plattenförmig, und vorzugsweise als Stanzteil ausgebildet. Für einige Anwendungen kann es vorteilhaft sein, das Kontaktelement als beispielsweise U-förmiges Stanz-/Biegeteil auszubilden. Als Werkstoff wird vorzugsweise eine hochfeste Kupferlegierung eingesetzt, beispielsweise eine CuFe2P-Legierung, die einen hohen elektrischen Leitwert von beispielsweise mehr als 32 MS/m bei guter mechanischer Festigkeit aufweist, vorzugsweise eine Vickershärte HV von mehr als 140. Typische Materialstärken liegen im Bereich zwischen 0,5 und 5 mm, insbesondere etwa 1 bis 2 mm. Zur Verbesserung der elektrischen Kontakteigenschaften und/oder zur Vermeidung von elektrolytischer Korrosion, beispielsweise bei einem Kontakt zu Aluminiumleitern, wird die Oberfläche der Kontaktelemente mit einer vorzugsweise galvanisch aufgebrachten Zinnauflage mit einer Schichtstärke von 3 bis 20 µm versehen, insbesondere etwa 5 µm.In one embodiment of the invention, the contact element is plate-shaped, and preferably formed as a stamped part. For some applications, it may be advantageous to form the contact element as, for example, U-shaped punched / bent part. The material used is preferably a high-strength copper alloy, for example a CuFe2P alloy which has a high electrical conductance of, for example, more than 32 MS / m with good mechanical strength Preferably, a Vickers hardness HV of more than 140. Typical material thicknesses are in the range between 0.5 and 5 mm, in particular about 1 to 2 mm. To improve the electrical contact properties and / or to avoid electrolytic corrosion, for example, in contact with aluminum conductors, the surface of the contact elements is provided with a preferably electrodeposited tin pad with a layer thickness of 3 to 20 microns, in particular about 5 microns.
In einer Ausführungsart der Erfindung weist die Vorrichtung mindestens zwei Kontaktelemente je Verbindung eines Hauptleiters mit einem zugeordneten Abzweigleiter auf. Vorzugsweise ist der Abstand der Kontaktelemente zueinander in Längsrichtung der zu kontaktierenden Leiter möglichst groß gewählt, um im Kontaktbereich die zu kontaktierenden Leiter parallel zu schalten und damit den Gesamtwiderstand der Anordnung zu senken. Außerdem ist bei mehrdrähtigen Leitern unter Berücksichtigung des Dralls des Kabelleiters sichergestellt, dass durch die axial beabstandeten Kontaktelemente unterschiedliche Einzeldrähte der Leiter kontaktiert werden.In one embodiment of the invention, the device has at least two contact elements per connection of a main conductor with an associated branch conductor. Preferably, the distance between the contact elements to each other in the longitudinal direction of the conductor to be contacted is chosen to be as large as possible in order to switch the conductor to be contacted in parallel in the contact region and thus to reduce the total resistance of the arrangement. In addition, in the case of stranded conductors, taking into account the twist of the cable conductor, it is ensured that different individual wires of the conductors are contacted by the axially spaced contact elements.
In einer besonderen Ausführungsart der Erfindung weist die Verbindungsschraube ein vorgebbares Abreißdrehmoment auf. Vorzugsweise reißt insbesondere der Schraubenkopf nach Überschreiten des Abreißdrehmomentes ab. Für viele Anwendungsfälle wird es möglich sein, die Vorrichtung mit einer einzigen zentralen Verbindungsschraube auszustatten. Erforderlichenfalls können auch mehrere Verbindungsschrauben vorgesehen sein, insbesondere in Richtung des zu kontaktierenden Hauptleiters oder Abzweigleiters hintereinander und/oder nebeneinander angeordnet sein. Entsprechend einer besonderen Ausführungsart wird die Vorrichtung durch die Verbindungsschraube entgegen dem Stand der Technik nicht bis zu einem Formschluss eingeschraubt, sondern bis zu einem vorgebbaren Drehmoment. Dieses vorgebbare Drehmoment hängt von der Geometrie der Kontaktelemente, dem Isolationswerkstoff des Haupt- bzw. Abzweigleiters, dem Leiterquerschnitt, sowie der Geometrie der Gehäuseteile ab. Insbesondere kann durch das vorgebbare Abreißdrehmoment ein und dieselbe Vorrichtung für verschiedene Leiterquerschnitte eingesetzt werden.In a particular embodiment of the invention, the connecting screw to a predetermined Abreißdrehmoment on. In particular, the screw head preferably tears off after the breakaway torque has been exceeded. For many applications, it will be possible to equip the device with a single central connecting screw. If necessary, a plurality of connecting screws can be provided, in particular in the direction of the main conductor or branch conductor to be contacted, one behind the other and / or next to each other. According to a special one Embodiment, the device is not screwed by the connecting screw contrary to the prior art to a positive connection, but up to a predetermined torque. This predefinable torque depends on the geometry of the contact elements, the insulating material of the main or branch conductor, the conductor cross-section, as well as the geometry of the housing parts. In particular, one and the same device can be used for different conductor cross-sections by the predeterminable Abreißdrehmoment.
Durch die erfindungsgemäße Vorrichtung ist insbesondere ein Arbeiten unter Spannung möglich. Hierzu ist sichergestellt, dass in jeder Phase der Montage die spannungsführenden Teile immer berührungssicher abgedeckt sind. Hierzu gehört auch ein Schutz gegen eine direkte Berührung bei falscher Handhabung von Werkzeugen. Es besteht keine Überbrückungsmöglichkeit von spannungsführenden Teilen durch falsche Handhabung eines Werkzeugs. Ein Abisolieren des Abzweigleiters ist nicht erforderlich, weshalb beim Absetzmaß für das Abmanteln der Isolierung keine Fehler auftreten können, die nach dem Schließen der Vorrichtung zu blanken überstehenden Adernenden führen könnten, die dann Spannung führen.By the device according to the invention in particular a working under tension is possible. For this, it is ensured that the live parts are always covered in a safe manner during each phase of the assembly. This also includes protection against direct contact due to incorrect handling of tools. There is no possibility of bridging live parts due to incorrect handling of a tool. A stripping of the branch conductor is not required, which is why when Absetzmaß for stripping the insulation no errors can occur that could lead to bare protruding wire ends after closing the device, which then lead stress.
In einer besonderen Ausführungsart weist die Vorrichtung in einer Trennebene der beiden Gehäuseteile einen Stützkeil auf, der ein vorzugsweise elastisch verformbares Widerlager für den Hauptleiter bildet. Dadurch wird die erforderliche Kontaktkraft auch bei Temperaturwechselbeanspruchungen dauerhaft gewährleistet.In a particular embodiment, the device has a support wedge in a parting plane of the two housing parts, which forms a preferably elastically deformable abutment for the main conductor. As a result, the required contact force is permanently ensured even with thermal cycling.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus den Unteransprüchen sowie der nachfolgenden Beschreibung, in der unter Bezugnahme auf die Zeichnungen mehrere Ausführungsbeispiele im Einzelnen beschrieben ist. Dabei können die in den Ansprüchen und in der Beschreibung erwähnten Merkmale jeweils einzeln für sich oder in beliebiger Kombination erfindungswesentlich sein.
- Fig. 1
- zeigt eine perspektivische Ansicht eines ersten Ausführungsbeispieles einer erfindungsgemäßen Vorrichtung,
- Fig. 2
- zeigt einen Querschnitt durch eine komplett montierte Vorrichtung,
- Fig. 3
- zeigt eine perspektivische Ansicht des ersten Gehäuseteils,
- Fig. 4
- zeigt eine Rückansicht eines Querschnitts durch das erste Gehäuseteil,
- Fig. 5
- zeigt eine perspektivische Ansicht der dem ersten Gehäuseteil zugewandten Unterseite des ersten Aufnahmekörpers,
- Fig. 6
- zeigt eine perspektivische Ansicht des ersten Aufnahmekörpers auf die dem ersten Gehäuseteil abgewandte Seite,
- Fig. 7
- zeigt eine Draufsicht auf die Druckplatte,
- Fig. 8
- zeigt einen Querschnitt entlang VIII-VIII der
Fig. 7 , - Fig. 9
- zeigt einen Querschnitt entlang IX-IX der
Fig. 7 , und - Fig. 10
- zeigt eine perspektivische Ansicht der Druckplatte.
- Fig. 1
- shows a perspective view of a first embodiment of a device according to the invention,
- Fig. 2
- shows a cross section through a completely assembled device,
- Fig. 3
- shows a perspective view of the first housing part,
- Fig. 4
- shows a rear view of a cross section through the first housing part,
- Fig. 5
- shows a perspective view of the first housing part facing the underside of the first receiving body,
- Fig. 6
- shows a perspective view of the first receiving body on the side facing away from the first housing part,
- Fig. 7
- shows a plan view of the printing plate,
- Fig. 8
- shows a cross section along VIII-VIII of
Fig. 7 . - Fig. 9
- shows a cross section along IX-IX of
Fig. 7 , and - Fig. 10
- shows a perspective view of the printing plate.
Die
Die Vorrichtung 1 weist eine mit der Schraubverbindung 22 in Wirkverbindung stehende erste Druckplatte 30 auf, mittels welcher die Verbindungskraft der Schraubverbindung 22 in die Vorrichtung 1 eingeleitet wird, insbesondere in das erste Gehäuseteil 10. Die erste Druckplatte 30 ist kraftspeichernd verformbar und verformt sich elastisch beim Festziehen der Schraubverbindung 22. Nach Beendigung des Festziehens der Schraubverbindung 22 ist die durch die elastische Verformung der ersten Druckplatte 30 gespeicherte Kraft in die Vorrichtung 1 einleitbar. Dadurch wird die Kontaktkraft für die elektrische Verbindung zwischen den Hauptleitern 2, 4, 6, 8 und den Abzweigleitern 12, 14, 16, 18 aufrechterhalten.The
Das erste Gehäuseteil 10 ist identisch aufgebaut wie das zweite Gehäuseteil 20. Es handelt sich insbesondere um Gleichteile aus einem faserverstärkten Kunststoff. In der
Die
Der die beiden Schenkel verbindende Abschnitt des ersten Gehäuseteils 10 bildet auf seiner nach außen weisenden Oberfläche einen Aufnahmeraum für zwei Abzweigleiter 12, 14, 16, 18 aus. Für jeden Abzweigleiter 12, 14, 16, 18 sind zwei axial beabstandete und jedenfalls abschnittsweise sphärisch gekrümmte Auflageflächen 66, 68 vorgesehen. Jede dieser Auflageflächen 66, 68 ist etwa mittig ihrer axialen Erstreckung von einer Aufnahmeöffnung 72 für die Aufnahme eines Kontaktelements 32, 34, 36, 38 unterbrochen. Mithin sind für jeden Abzweigleiter mindestens zwei Kontaktelemente 32, 34, 36, 38 vorgesehen, mittels denen der Abzweigleiter 12, 14, 16, 18 mit dem jeweils zugehörigen, insbesondere in der montierten Klemme darunterliegenden Hauptleiter 2, 4, 6, 8, elektrisch verbunden ist. Die Kontaktelemente 32, 34, 36, 38 können U-förmig gebogen sein und an beiden Schenkeln endseitig eine Zahnung für die elektrische Kontaktierung aufweisen.The section connecting the two legs of the
Vorzugsweise einstückig bildet das erste Gehäuseteil 10 außerdem an einem axialen Ende eine Anschlagfläche 74 aus, an welche die Abzweigleiter 12, 14, 16, 18 in Anlage gebracht werden können. Außerdem bildet das erste Gehäuseteil 10 an den axialen Endseiten der Einführkanäle für das Einlegen der Abzweigleiter 12, 14, 16, 18 V-förmige Auflagen 76 aus, auf welche die Abzweigleiter 12, 14, 16, 18 in einer Vormontageposition aufgelegt werden können. Die Auflagefläche der V-förmigen Auflage 76 ist dabei gegenüber der Auflagefläche 66, 68 etwas erhöht, damit in der Vormontageposition ein Eindringen der Kontaktelemente 32, 34, 36, 38 in die Isolation der Abzweigleiter 12, 14, 16, 18 zuverlässig verhindert ist. Beim Festziehen der Schraubverbindung können die V-förmigen Auflagen 36 sich entweder ausreichend verformen oder abbrechen, sodass anschließend der Abzweigleiter 12, 14, 16, 18 in Anlage auf die Auflageflächen 66, 68 kommt und dadurch die Kontaktelemente 32, 34, 36, 38 in die Abzweigleiter 12, 14, 16, 18 eindringen.Preferably, in one piece, the
Die etwa mittig in Richtung der axialen Erstreckung des ersten Gehäuseteils 10 angeordneten und von dem ersten Gehäuseteil 10 einstückig ausgebildeten ersten Führungsstifte 78 sind neben einer Öffnung für den Durchtritt einer Schraube der Schraubverbindung 22 angeordnet und dienen als Platzhalter für die einzusetzende Schraube. Die an den axialen Enden des ersten Gehäuseteils 10 und vorzugsweise einstückig von diesem ausgebildeten zweiten Führungsstifte 82 ragen ebenfalls in das Innere der Vorrichtung 1 und sind etwas außerhalb der Mitte in Querrichtung angeordnet; sie dienen im Wesentlichen einer vereinfachten Zusammenführung der beiden Gehäuseteile 10, 20 und sind etwas länger als die ersten Führungsstifte 78.The approximately centrally arranged in the direction of the axial extent of the
Die
Hierzu wird die Schraubkraft über eine erste Druckplatte 30 und einen ersten Aufnahmekörper 60 auf den ersten Abzweigleiter 12 und über das erste Kontaktelement 32 auf den ersten Hauptleiter 2 eingebracht, der sich an dem ersten Stützkeil 70 abstützt. Von der gegenüberliegenden Seite wird die Schraubkraft über eine zweite Druckplatte 50 des zweiten Gehäuseteils 20, den zugehörigen zweite Aufnahmekörper 80 in den zweiten Abzweigleiter 14, über diesen in das zweite Kontaktelement 34 und den zweiten Hauptleiter 4 eingeleitet, der sich von der gegenüberliegenden Seite an dem ersten Stützkeil 70 abstützt. Die von den einander gegenüberliegenden Druckplatten 50 eingeleiteten Kräften fluchten dabei im Wesentlichen, sodass sich ein günstiger Kraftfluss ergibt.For this purpose, the screwing force is introduced via a
Die
Axial endseitig weist der erste Aufnahmekörper 60 Öffnungen 96 auf, mittels denen insbesondere in einer Vormontageposition der Vorrichtung 1 die korrekte Positionierung der Abzweigleiter 12, 14, 16, 18 kontrollierbar ist.Axial end, the first receiving
Die
In jenem Bereich, in dem der erste Aufnahmekörper 60 auf der Unterseite die Andruckstege 92 aufweist, mithin in dem Bereich, in dem der erste Aufnahmekörper 60 die Andruckkräfte auf den Abzweigleiter 12, 14, 16, 18 überträgt, bildet der erste Aufnahmekörper 60 auf der Oberseite eine vorzugsweise plane Anlagefläche 108 für die Anlage der ersten Druckplatte 30 aus. Der übrige Bereich, insbesondere der Bereich um die Öffnung 102 für die Verbindungsschraube, ist demgegenüber abgesenkt, sodass sich die erste Druckplatte 30 in diesem Bereich infolge der elastischen Verformung absenken kann, ohne in Anlage an die Oberfläche des ersten Aufnahmekörpers 60 zu kommen. Auf diese Weise ist gewährleistet, dass die in der ersten Druckplatte 30 gespeicherte Federkraft nur in jene Bereiche in den ersten Aufnahmekörper 60 eingeleitet wird, in denen sie unmittelbar und insbesondere ohne Verformung des ersten Aufnahmekörpers 60 in eine Kontaktkraft für den zugeordneten Abzweigleiter 12, 14, 16, 18 umgewandelt wird.In the region in which the first receiving
Die
Die Druckplatte 30 ist vorzugsweise durch Stanzen und Biegen einstückig aus einer rechteckförmigen Platine hergestellt. Die Druckplatte 30 ist symmetrisch zu den beiden in der
Die längsseitigen Ränder sind hochgezogen und an ihren axialen Enden freigeschnitten und nach innen gebogen und bilden dadurch einen Anschlag 112, durch den ein Auslenken eines Einleitungsabschnittes 116 der Druckplatte 30 begrenzt ist, der in Anlage an der Anlagefläche 108 des Aufnahmekörpers 60 ist. Der Einleitungsabschnitt 116 ist über einen federelastisch verformbaren, insbesondere stegförmigen Abschnitt 118 mit einer im Zentrum der Druckplatte 30 vorgesehenen und vorzugsweise biegesteifen Anlagefläche 122 für ein Schraubverbindungselement verbunden. Hierzu kann die Anlagefläche 122 beispielsweise eine Kröpfung 124 oder eine Sicke aufweisen, insbesondere quer verlaufend zur Erstreckung des federelastisch verformbaren Abschnitts 118.The longitudinal edges are raised and cut free at their axial ends and bent inwards, thereby forming a
Claims (15)
- A device (1) for electrically connecting at least two prime conductors (2, 4, 6, 8) of an energy supply cable having respectively at least one branch conductor (12, 14, 16, 18), in particular a cable branch terminal, comprising a housing that has at least two housing parts (10, 20) that can be connected by a screw connection (22), the device (1) having a pressure plate (30, 50) operatively connected to the screw connection (22) for introducing the screw connection force into the device (1), the pressure plate (30, 50) being deformable, storing energy, and deforming elastically when the screw connection (22) is tightened, and when the tightening is complete introducing the energy stored by the elastic deformation into the device (1) in order to maintain the contact force for the electrical connection between prime conductors (2, 4, 6, 8) and branch conductors (12, 14, 16, 18), characterised in that the pressure plate (30, 50) has a flexurally rigid stop (112) against which a further section (116) of the pressure plate (30, 50) can rest when tightening the screw connection (22) as a result of the elastic deformation of the pressure plate (30, 50) that occurs.
- The device according to Claim 1, characterised in that the further section (116) is connected by a section (118) that can deform spring-elastically when tightening the screw connection (22) to a contact surface (122) for a screw connection element.
- The device (1) according to Claim 1 or 2, characterised in that the stop (112) and the further section (116) are formed in one piece by the pressure plate (30, 50), in particular by bending a section forming the stop (112) from a base surface of the pressure plate (30, 50) forming the further section.
- The device (1) according to any of the preceding claims, characterised in that the pressure plate (30, 50) can be inserted into a receiving body (60, 80) that has a first contact surface for resting against the assigned branch conductor (12, 14, 16, 18), and that the pressure plate (30, 50) introduces its spring force into the receiving body (60, 80) predominantly or exclusively in the region of the first contact surface.
- The device (1) according to Claim 4, characterised in that the receiving body (60, 80) can be fixed lockably onto the assigned housing part (10, 20).
- The device (1) according to Claim 4 or 5, characterised in that the receiving body (60, 80) has an opening (96) by means of which, in particular in the not yet tightened state of the screw connection (22), the correct positioning of the assigned branch conductor (12, 14, 16, 18) can be monitored.
- The device (1) according to any of Claims 4 to 6, characterised in that the receiving body (60, 80) has a positioning means (94) preferably formed in one piece for positioning the branch conductor (12, 14, 16, 18) when placing the receiving body (60, 80) on the assigned housing part (10, 20).
- The device (1) according to any of the preceding claims, characterised in that at least one housing part (10, 20) has a stop means (24) preferably made in one piece and that comes to rest against insulation of the assigned prime conductor (2, 4, 6, 8) when the housing parts (10, 20) are brought together manually and thus prevents accidental electrical contacting of the assigned prime conductor (2, 4, 6, 8).
- The device (1) according to Claim 8, characterised in that the stop means (24) can be overridden as a result of tightening the screw connection (22) but nevertheless remains connected to the housing part (10, 20).
- The device (1) according to any of the preceding claims, characterised in that for every connection to be made between a prime conductor (2, 4, 6, 8) and an assigned branch conductor (12, 14, 16, 18) at least one contact element (32, 34, 36, 38) is positioned in a housing part (10, 20) and that upon screwing in the screw connection (22) the contact element (32, 34, 36, 38) penetrates both insulation of the prime conductor (2, 4, 6, 8) and insulation of the branch conductor (12, 14, 16, 18).
- The device (1) according to any of the preceding claims, characterised in that two housing parts (10, 20) can be placed together, in particular by a relative movement in a straight line and thereby encompass the prime conductors (2, 4, 6, 8).
- The device (1) according to Claim 11, characterised in that the two housing parts (10, 20) have locking means by means of which the placed together state can be locked as a pre-assembly position, and in particular can be releaseably locked.
- The device (1) according to Claim 11 or 12, characterised in that the two housing parts (10, 20) have guide means for guiding the relative movement in a straight line when placing together.
- The device (1) according to any of Claims 11 to 13, characterised in that the two housing parts (10, 20) are made as identical parts.
- The device (1) according to any of the preceding claims, characterised in that the device (1) has in the separation plane of the two housing parts a supporting wedge (70) that has different thicknesses to both sides of the separation plane.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL07009151T PL1885025T3 (en) | 2006-08-03 | 2007-05-07 | Device for electrically connecting at least two isolated main conductors of a power supply cable, in particular tapping clamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006037720A DE102006037720A1 (en) | 2006-08-03 | 2006-08-03 | Device for electrically connecting at least two main conductors of a power supply cable, in particular cable branch terminal |
Publications (3)
Publication Number | Publication Date |
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EP1885025A2 EP1885025A2 (en) | 2008-02-06 |
EP1885025A3 EP1885025A3 (en) | 2012-02-15 |
EP1885025B1 true EP1885025B1 (en) | 2013-04-17 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP07009151.7A Active EP1885025B1 (en) | 2006-08-03 | 2007-05-07 | Device for electrically connecting at least two isolated main conductors of a power supply cable, in particular tapping clamp |
Country Status (4)
Country | Link |
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EP (1) | EP1885025B1 (en) |
DE (1) | DE102006037720A1 (en) |
ES (1) | ES2405334T3 (en) |
PL (1) | PL1885025T3 (en) |
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DE4240001A1 (en) * | 1992-11-27 | 1994-06-01 | Arcus Elektrotech | Multi-phase branch terminal |
DE19526345C2 (en) * | 1995-07-19 | 1997-04-30 | Langmatz Lic Gmbh | Device for the electrical connection of preferably two electrical conductors |
DE19946885C1 (en) * | 1999-09-30 | 2001-05-23 | Arne Karusseit | Cable branch clamp |
FR2802712B1 (en) * | 1999-12-16 | 2002-02-08 | Fci Electr France | DEVICE FOR ELECTRICALLY CONNECTING AT LEAST ONE BYPASS CABLE TO A MAIN CABLE |
FI106994B (en) * | 2000-03-31 | 2001-05-15 | Ensto Sekko Oy | Connection for an overhead power line |
DE20020084U1 (en) * | 2000-11-22 | 2001-03-08 | Pfisterer Kontaktsysteme GmbH & Co. KG, 70327 Stuttgart | Device for the simultaneous electrical connection of the main conductors of a power supply line to at least one branch conductor, in particular screw compact terminal |
DE10341997A1 (en) * | 2003-09-03 | 2005-03-31 | Pfisterer Kontaktsysteme Gmbh & Co. Kg | Device for electrically connecting at least two insulated main conductors of a power supply cable, in particular a cable branch terminal |
DE20314087U1 (en) * | 2003-09-09 | 2003-12-18 | ESV Werkzeuge und Zubehör für die elektrische Stromverteilung GmbH | Cable connector has clamping blocks that provide location for main cable cores that are forced into contact with ancillary cable using blade contacts |
JP4100319B2 (en) * | 2003-10-08 | 2008-06-11 | 住友電装株式会社 | Splice absorption structure for automobile |
ATE309628T1 (en) * | 2003-12-31 | 2005-11-15 | Gph Gmbh | CABLE CONNECTION CLAMP |
DE102004047157B4 (en) * | 2004-09-29 | 2009-02-26 | Höhne GmbH | Branch clamping sleeve |
-
2006
- 2006-08-03 DE DE102006037720A patent/DE102006037720A1/en not_active Withdrawn
-
2007
- 2007-05-07 ES ES07009151T patent/ES2405334T3/en active Active
- 2007-05-07 EP EP07009151.7A patent/EP1885025B1/en active Active
- 2007-05-07 PL PL07009151T patent/PL1885025T3/en unknown
Also Published As
Publication number | Publication date |
---|---|
EP1885025A2 (en) | 2008-02-06 |
ES2405334T3 (en) | 2013-05-30 |
PL1885025T3 (en) | 2013-09-30 |
EP1885025A3 (en) | 2012-02-15 |
DE102006037720A1 (en) | 2008-02-07 |
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