EP3155694A1 - Vorrichtung zum kontaktieren eines elektrischen leiters sowie anschluss- oder verbindungseinrichtung mit einer solchen vorrichtung - Google Patents
Vorrichtung zum kontaktieren eines elektrischen leiters sowie anschluss- oder verbindungseinrichtung mit einer solchen vorrichtungInfo
- Publication number
- EP3155694A1 EP3155694A1 EP15727559.5A EP15727559A EP3155694A1 EP 3155694 A1 EP3155694 A1 EP 3155694A1 EP 15727559 A EP15727559 A EP 15727559A EP 3155694 A1 EP3155694 A1 EP 3155694A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- conductor
- contact
- contacted
- force
- connecting body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/01—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the form or arrangement of the conductive interconnection between the connecting locations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R3/00—Electrically-conductive connections not otherwise provided for
- H01R3/08—Electrically-conductive connections not otherwise provided for for making connection to a liquid
-
- 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
- H01R4/26—Connections in which at least one of the connecting parts has projections which bite into or engage the other connecting part in order to improve the contact
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/12—End pieces terminating in an eye, hook, or fork
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/28—End pieces consisting of a ferrule or sleeve
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/32—End pieces with two or more terminations
-
- 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
- H01R4/10—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/18—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
- H01R4/183—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section
- H01R4/186—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section using a body comprising a plurality of cable-accommodating recesses or bores
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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
- H01R4/10—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/18—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
- H01R4/20—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve
-
- 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
- H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
- H01R4/36—Conductive members located under tip of screw
Definitions
- the invention relates to a device for contacting an electrical conductor, in particular a stranded conductor of a power supply cable, and a connection or connection device with such a device.
- the conductors are preferably divided into several segments, which are assembled with bands or other insulating layers to cross-sectionally circular conductors.
- the individually insulated individual wires are also twisted and pulled through a forming die, so that the current is later in the individual wires are routed again and again following the wire path in the longitudinal direction of the cable from the outer layer into the interior of the conductor.
- the segments are usually wound in the outside with ribbons and are electrically isolated from each other.
- Such cable ladder constructions are known for example from US 1, 904, 162 A and are also referred to as MILLIKEN type.
- a device having the features of the preamble of claim 1 is known from EP 2 226 899 A1, in which a wedge-shaped tip can be screwed radially into a tubular clamp body as the contact medium, thereby into abutting contact with the front ends of the two on opposite sides Pages in the clamp body axially inserted conductor can be brought, and thereby an electrical connection between the two conductors can be produced.
- the invention has for its object to provide a device for
- connection or connection device with such a device, which overcome the disadvantages of the prior art.
- assembly of such devices and thus the production of connection or connection devices according to the invention should be simplified while still ensuring a high contact reliability and a high current carrying capacity.
- the device according to the invention for contacting an electrical conductor in particular a cable conductor of a power supply cable, a connecting body, in which the conductor to be contacted is used with its front end;
- the device also has a contact medium, with which the front end of the conductor is electrically contacted and the one
- the contact body Having a plurality of electrically conductive contact bodies, of which at least one part can be brought into electrically contacting system to the front end of the conductor, preferably to the entire end face of the conductor; by the contact body, the contact force on adjacent contact body and / or the conductor to be contacted and / or the connection body is transferable, in particular from a force introduction point of the connecting body, for example, a screwed into the connecting body pressure screw, up to the frontal
- the Device can be used for electrically connecting two or more conductors as well as for connecting one or more conductors to an electrical equipment.
- the connecting body may be in one piece, whereby, for example, the recording of the acting clamping and contact forces is simplified, or be multi-part, whereby, for example, the assembly of the device is simplified by, for example, already laid cable in the
- the connecting body may be sleeve-shaped at least in sections so that the conductor to be contacted or the conductors to be connected to one another can be inserted or inserted into the sleeve-shaped section. At least a part and preferably all contact bodies can have an identical shape and preferably also an identical size.
- the present invention decisively improves the functional level of the compounds known from the prior art by not or at least not, as hitherto customary, the peripheral surface at the conductor end
- Power transmission is used, but also or even exclusively the end face of the conductor, preferably the entire end face of the conductor.
- this design allows the use of relatively short connecting systems that claim a smaller installation space and thus allow the use of smaller, easier to install and cheaper to produce insulating systems in trimmings.
- the end face of the ladder grows geometrically proportionally with its cross section.
- the face is the only surface in all known different conductor constructions, which is available in a particularly simple way metallic blank. So the cables are in the installation in the Usually cut to the appropriate length, preferably sawn off. All other surfaces of the conductor to be contacted must be prepared in a separate operation more or less consuming.
- no transverse force must be exerted on the conductor to produce the electrical transverse conductivity between the individual wires and the connecting body. This is advantageous because such a transverse conductivity is increasingly difficult to achieve for larger cross-sections and / or partially insulated conductor designs.
- the electrical and mechanical functions of the contact device can be divided into two, spatially possibly also separated or even spaced sections, namely a first section, which is responsible for the current transport and a low electrical resistance with short current paths using metallic masses with good Provides thermal conductivity, and a second section, which is responsible for the mechanical fixation and power transmission and provides a high mechanical strength and a robust and site-specific design with sufficient tolerance to deviations between planned and delivered conductor execution with small size, and thus a fail-safe and time-saving installation guaranteed.
- Inventive devices can therefore be made very slim and short, since the power supply leads directly from one end of the conductor to the other end of the conductor or to a contact surface.
- the sleeve-shaped connector body is designed primarily for mechanical stress, which can be met when using high-strength materials with smaller wall thicknesses than is usual today. This allows the use of smaller and less expensive insulating body of cable fittings.
- the contact force is transferable substantially independently of direction to adjacent adjacent contact bodies and / or the conductor to be contacted and / or the connecting body bar. As a result, a quasi-hydrostatic pressure and thus power distribution is achieved. This leads to the fact that the electrical contacting of the conductor takes place over a short connecting distance.
- the contact body has an at least partially curved surface, in particular an at least partially spherical surface, and preferably at least a portion of the contact body is spherical.
- the electrically conductive contact bodies have an electrically conductive surface coating which, compared to the material of the contact bodies, has a permanently lower contact contact resistance.
- the contact bodies may be made of copper or aluminum
- the coating may consist of gold or silver, or of tin or zinc, or of an alloy using at least one of these elements.
- the thickness of the surface coating may be more than 1 ⁇ m and less than 25 ⁇ m, in particular more than 2 ⁇ m and less than 10 ⁇ m, and preferably more than 2.5 ⁇ m and less than 6 ⁇ m.
- the size of the contact body on the one hand to be chosen so that they can not penetrate expected cavities or isolierstoff Marsh Marsh Marsh Marshage interstices at the conductor end faces, and on the other hand to choose so small that a quasi-hydrostatic balance of the contact body at point load is achieved and possible borrowed each individual wire on the front side of at least one, preferably contacted by at least two contact bodies.
- the ball diameter should be much smaller than the individual wire diameter of the conductor.
- the contact medium has a pasty and, at room temperature, preferably viscoelastic mass, in which the contact bodies are embedded.
- the mass may allow a homogeneous distribution of the contact bodies, and / or allow a dimensionally stable application of the contact body on the prepared conductor end face, and / or not adhere to the assembly tool when used as intended, and / or prevent oxidation of the electrical contacts, and / or not in remaining voids diffuse and do not react chemically with the known insulating materials, and / or do not alter the electrical properties of a conductor smoothing layer or cable primary insulation.
- the device has a force introduction element acting on the contact medium and in particular the contact bodies, with which the contact force in the contact medium can be introduced.
- the necessary contact force can be generated in the receiving space bounded by the deformation body and the conductor to be contacted, for example by means of one or more pressure screws which can be screwed into the deformation body.
- the device has a force accumulator acting on the contact medium and in particular the contact bodies, with which the contact force can be permanently maintained.
- the minimum holding force required for undisturbed operation should be compensated for and maintained by a suitable spring accumulator after all settling losses have subsided and taking into account the operationally reversible volume changes due to thermal expansion of the materials.
- the energy accumulator can also be integrated into the force introduction element.
- the desired preload can be easily applied by the installer by tightening the pressure screw (s) and controlled by the applied torque, for example by screws with Abr occidentalgropfen.
- indicators may indicate that the springs are sufficiently tensioned. This gives the installer clear feedback that the installation has been carried out correctly and that the connection can thus withstand maintenance-free operation requirements.
- the device has at least one force indicator or at least one signal element which respectively indicates that the contact medium is sufficiently braced by means of the force or contact memories.
- a display for example, with signal elements in the form of force indicators simplifies assembly while ensuring a relatively tight tolerances of the contact means.
- the device has a fixing device for fixing the conductor to be contacted to the connecting body, in particular for fixing the axial position of the conductor to be contacted with respect to the connecting body. Above all, the fixing device absorbs forces in the longitudinal direction of the conductor, which act on the conductor from the outside during installation and during operation.
- the fixing device fixes, for example in the case of a stranded conductor, the individual wire structure at the clamping point in the transverse direction of the conductor, clamps the individual wires on the end face of the prepared conductor ends as formally as possible and forms a stable counter bearing for the contact bodies under the pressure of the contact force.
- the invention also relates to a connection and connection device with a device as described above and with a contacted electrical conductor, in particular a stranded cable conductor of a power supply cable, wherein at least a part of the contact body is in electrically contacting system at the front end of the conductor.
- At least a part of the contact body has an at least partially curved surface, in particular an at least partially spherical surface, and preferably at least a part of the contact body is spherical.
- the radius of the curved surface is less than 50% of a narrow side of the front surface of the contacted conductor or the wires of a stranded conductor, in particular less than 40% and preferably less than 25%. This ensures that at least one contact body rests on each individual wire of the conductor.
- the conductor is stranded, and in the front end of the contacted conductor at least one expansion element is used, preferably, a spreading element is inserted centrally in the frontal end of the contacted conductor.
- a radial expansion of the conductor is achieved, which is advantageous in order to clamp the conductor pressure-stable at the contact point can.
- the radial load from the outside in the direction of the center Absorbs pressure load in an undesirable manner and dissipates in the circumferential direction. The radially applied clamping force would then not act on the inner wire layers.
- the expansion element may be at least partially conical or wedge-shaped.
- the expansion element may have one or more, preferably detachable without tools sections, so that after a sufficient driving of the expansion element in the conductor, the expansion element on the front side of the conductor is separable, preferably without the remaining part in the conductor protrudes beyond the end face of the conductor.
- radially acting clamping screws In order to clamp the individual wires of a stranded conductor in the radially outermost position and to fix sufficiently, for example, distributed on the circumference of the connecting body arranged radially acting clamping screws can be used.
- the clamping screws in be arranged at a small distance on the circumference. If necessary, the clamping screws can be arranged in two or more rows in the axial direction one behind the other. Ring cutting or conical surfaces on the heads of the clamping screws are advantageous for large-area clamping contact of preferably several individual wires.
- the remaining gap must be smaller than the contact body used to prevent penetration of the contact body in the gap. For example, by conical shaping of the conductor receiving bore and axial displaceability of the contact part, this gap can be sufficiently reduced during installation.
- an annular element whose outer diameter is adapted to the receiving space of the connecting body is placed at or near the front end on the contacted conductor, in particular the outer diameter of the annular element can substantially correspond to the clear width of the receiving space of the connecting body;
- the inner diameter of the annular element may be adapted to the outer diameter of the conductor to be contacted, in particular, the inner diameter of the annular element may substantially correspond to the outer diameter of the conductor to be contacted.
- annular element when the annular element is installed before driving in the expansion element, it serves as a radial delimitation and fixation of the conductor and secures its circumferential contour when subsequently the expansion element is driven and therefore the conductor assembly tries to expand radially.
- the positive connection between the individual wires is reduced in the transverse direction and improved to the annular element.
- the gap on the outer diameter of the conductor closes, the clamping force for later mechanical fixation of the conductor composite can act through the clamping screws to the center.
- the sawed end face of a stranded conductor is metallically bare in the case of the manually executed installation, but very undulating and can also be sawed off at an angle to the cable direction; These form deviations occurring during cable preparation can not be defined.
- the end face that is available for contacting corresponds to the delivered conductor cross-section, which is generally slightly smaller than the nominal cross-section from the data sheet of the cable.
- the end face to be contacted may consist of individual wires with possibly different diameters; The individual wires may be coated on the wire surface with thin insulating layers and may have different cross-sectional shapes due to compaction during production, which may differ from the ideal circular shape.
- the individual wires can not be connected to each other in the transverse direction and can be moved conditionally to each other in the longitudinal and transverse directions; they are held in the longitudinal association only by twisting and positive locking.
- Insulating materials in the form of powders, tapes or homogeneous plastic fillings can be present individually or in combination between the individual wires.
- the insulating materials are usually less pressure stable than the end faces of the wires and therefore evade under mechanical stress. Relaxation and setting behavior in the case of punctual and / or surface compressive load correspond to the values typical for plastics, far below the characteristic values to be expected with pure metals. Larger gussets between conductor segments and / or centrally inserted waveguide or plastic cords may be present.
- Fig. 1 shows a longitudinal section through a first embodiment of the
- Fig. 4 shows a longitudinal section through a third embodiment
- Fig. 5 shows a longitudinal section through a fourth embodiment
- Fig. 6 shows a longitudinal section through a fifth embodiment
- Fig. 7 shows a longitudinal section by a sixth embodiment
- Fig. 8 shows a longitudinal section through a seventh embodiment.
- FIG. 1 shows a longitudinal section through a first embodiment of the invention with a device 1 according to the invention for contacting a multi-wire electrical conductor 10, in the present case for connecting the first multi-wire electrical conductor 10 with a second stranded electrical conductors 20, which are the cable conductors 10, 20 of a first power supply cable 12 and a second power supply cable 22, respectively.
- the two conductors 10, 20 are in the region of the device 1 coaxial with the longitudinal axis 2 of
- FIG. 2 also shows a longitudinal section through the device 1, in which the device 1, however, is rotated by 90 ° about the longitudinal axis 2.
- the first embodiment serves to connect cross-section equal conductors 10, 20 and uses as an outer contact system, the tubular
- Connecting body 4 which is like a normal press connector left and right on the prepared ends of the ladder 10, 20 is pushed and pressed, for example, with hydraulic tools. Similar to a conventional compression connector, the connection body 4 can be used with appropriate conductivity for power transmission from the contacted on the surface bare conductor wires of the two conductors 10, 20. However, because possible insulating layers were not removed from the individual wires and, according to experience, only the two outer layers are involved in current transport in the case of multi-layered cables, this alone does not produce sufficient electrical contact. Therefore, the pressing ensures, above all, that the two ends of the conductors 10, 20 fixed to the connecting body 4 and thus are mechanically stable connected to each other. The fact that so that the front ends 14, 24 of the conductors 10, 20 are radially clamped and only slightly or not at all
- a receiving space 6 are introduced into the contact body 32, which are embedded in a pasty mass 34 and together with the contact medium 30 of Form device 1, which is only partially drawn for reasons of clarity.
- the contact bodies 32 are formed by balls made of copper, which have a uniform size and are coated with a 3 p to 5 ⁇ thick layer of tin.
- the diameter of the balls is more than 10% and less than 100% of the extension of the narrow side of a wire of the conductor 10, 20, in particular more than 15% and less than 90% and preferably more than 20% and less than 85%.
- the pasty mass 34 may comprise a silicone gel or other paste of suitable viscosity.
- a threaded pin or a tear-off screw are screwed into these threaded openings 16 as force introduction element 18 and thereby the receiving space. 6 closed and the further screwing the contact medium 30 is pressurized.
- the device also has two force accumulators 28, each having a package of disc springs 38 and are inserted radially on the axially opposite sides in the connecting body 4, in particular screwed into corresponding second threaded holes 26 and then glued therein.
- the two force introduction elements 18 are screwed and tightened so far in the connecting body 4 until force indicators in the form of signal elements 36 indicate to the force accumulators 28 that the contact medium 30 is sufficiently braced.
- the energy storage 28 are sized so that they maintain the minimum required holding force, even if due to thermal load cycles and permanent relaxation losses the Volume between the two conductors 10, 20 should expand or the ends of the two conductors 10, 20 should still move a little.
- FIG. 3 shows a longitudinal section through a second embodiment of the invention with a device 101, in which a one-piece tube is pushed as a connecting body 104 over the ends of the two different or cross-sectionally identical conductor 1 10, 120.
- the two conductors 1 10, 120 are fixed with the axially outermost retaining screws 142 on the connecting body 104, which form part of a fixing device of the device 301; the central part 144 with the force accumulators 128 or spring packs 138 is already installed in the connecting body 104 and fixed there axially and radially in the middle.
- part of the current load can flow via the retaining screws 142 and the connecting body 104, but this is not absolutely necessary and therefore permits shorter designs of the device 101.
- the preferably spherical contact body 132 are introduced via the still open holes 16 1 for the force introduction elements 1 18 until the receiving space 106 between the conductors 1 10, 120 is completely filled.
- the contact force is applied by the force introduction elements 1 18, which are formed for example by screws and are finally screwed into the holes 1 16 and tightened until no more screw overhang can be seen.
- the centering screw 146 in the middle of the connecting body 104 fixes the preloaded force accumulators 128 with their packages of disc springs 138.
- the contact body 1 32 are pressurized and the energy storage 128 biased.
- the connecting body 104 can be formed from a tube or also from connectable half-shells, which can be laid around the conductors 110, 120 and can be clamped to one another and to the conductors 110, 120 by means of a suitable device.
- annular element 148 is placed at its front end, whose outer diameter is adapted to the receiving space 106 of the connecting body 104, in particular substantially corresponds to the clear width of the receiving space 106 of the connecting body 104, and its inner diameter the outer diameter of the conductor to be contacted 1 10, 120 is adapted, in particular substantially the outer diameter of the conductor to be contacted 1 10, 120 corresponds.
- the conductors 1 10, 120 centered in the connecting body 104 and their peripheral contour is secured, preferably circular.
- the annular elements 148 engage over the front end of the conductor 1 10, 120 to form an annular and radially inwardly directed web 1 52, the at
- a spreader element 150 is used centrally, which has a plurality of sections, of which at least one part is in each case frusto-conical and which are preferably separated from each other without tools. Also, the contour of the illustrated longitudinal section through the expansion element 1 50 is conical, so that the associated conductor 1 10, 120 is more spread and thus pressed into contact with the inside of the annular member 148, the deeper the spreader 150 in the conductor 1 10th , 120 is driven.
- Figure 4 shows a longitudinal section through a third embodiment of the invention with a device 201, in which the installation is facilitated by a second part 204b, in particular a second half, of the two-part or multi-part tubular connecting body 204 are removed from a first part 204a can and can be put back on the first part 204a and fixed there, for example with a ring, as soon as the connecting body 204 is in the correct position to the conductors 210, 220. Both sides of the connecting body 204 may also be designed in this way.
- one side of the connecting body 204 is pushed onto the end of the first conductor 210 and fixed there by the retaining screws 242.
- Half shell on the other side of the connecting body 204 are inserted and in particular does not have to be inserted in the longitudinal direction. This is advantageous because an axial displacement of such cable ladder due to their large mass is possible only with the use of high forces.
- FIG. 5 shows a longitudinal section through a fourth exemplary embodiment of the invention with a device 301 in which in each case a first part 304a of the connecting body is mounted on one end of a conductor 310, 320. Subsequently, the two first parts 304a are connected to a connecting element 340, which in turn can be connected to the two first parts 304a.
- the contact bodies 332 are introduced and rotate the force introduction elements 318 compressed and pressurized.
- the self-adjusting bias voltage on the force accumulators 328 can be read from outside the device 301 on the basis of the axial position of pin-shaped signal elements 354 which are arranged in the force accumulators 328 and extend radially outwards, passing through radial bores in the connecting element 340.
- the signal element 354 When the conical sections of the energy accumulators move axially toward the center of the device 301, for example, the signal element 354 is entrained and at the axial position of the signal element 354 it can be read from outside the device 301 how strongly the energy accumulator 328 is biased.
- the radial bore in the connecting element 340 for the passage of the signal element 354 can only be considerably larger than the dimension of the signal element 354, so that no axial relative movement of the signal element 354 with respect to the connecting element 340 is possible.
- the receiving opening for the signal element 354 present in the energy accumulator 328 has an oblique surface, so that upon an axial relative movement of the energy accumulator 328 relative to the connecting element 340, the signal element 354 slides along the inclined surface and is thereby displaced radially in the radial bore, so that the bias of the energy accumulator 328 can be read from outside the device 301 on the basis of the radial position of the signal element 354.
- the signal element 354 is only visible or is flush with the connecting element 340 when the energy accumulator 328 is sufficiently preloaded and thus the contact force is sufficient.
- the signal element 354 may be axially and / or radially displaceable with spring force loading in order, for example, to eliminate the influence of the weight.
- 6 shows a longitudinal section through a likewise three-part fifth embodiment of the invention with a device 401, in which the two first parts 404a of the connecting body are also each mounted on one end of a conductor 410, 420, then these two first parts 404a but with a multi-part connecting element 440 are connected, for example, by two strigoubbare half shells together.
- a holding body of the energy accumulator 428 comprising the spring elements can project axially into the two first parts 404a of the connecting body, in particular at its end, each having an external thread and thus can be screwed into the first two parts 404a, and through an end-side inner cone section form an axial stop for the ends of the two conductors 410, 420.
- An advantage of the described three-part embodiments is that both conductor ends can be pre-assembled individually and independently of each other. The sliding of the two ends of the device 301, 401 assigned to the conductors 310, 410, 320, 420 is thus very easily possible, in particular the associated cables do not have to be moved for this purpose.
- the conductors 310, 410, 320, 420 are centered and the end faces firmly clamped.
- FIG. 7 shows a longitudinal section through a sixth exemplary embodiment of the invention with a device 501 which can be used for a plug-in system with lamellar contacts. In such a plug-in connector part, no high demands are placed on the axial tensile load capacity of the conductor connection as a rule.
- the conductor end face is prepared and the connection body 504
- the connecting body 504 has on the outside a circumferential groove into which a contact blade 556 is inserted.
- the connecting body 504 is filled with the contact medium 530 and pushed onto the end of the conductor 510 and mechanically fixed with the retaining screws 542 on the conductor end.
- Connecting body 504 takes over the centering and sealing of the edge of the end face of the conductor 510. Subsequently, the contact force is biased by the force accumulator 528, which is on the opposite end of the conductor 510 in the connecting body 504
- FIG. 8 shows a longitudinal section through a seventh exemplary embodiment of the invention with a device 601 which can be used, for example, for screw connection bolts on cable end closures and can be constructed on the same construction principle as the devices described above.
- the end section for accommodating the connection fitting of an overhead line or the screw connection to a busbar system can be designed as a cable lug 660, for example as a solid round bolt, as a flat, rectangular connection lug with bores or, as shown in dashed lines in FIG.
- a cable lug 660 for example as a solid round bolt, as a flat, rectangular connection lug with bores or, as shown in dashed lines in FIG.
- For tressleiter textbooken end is an example of a screwed version shown with retaining screws 642, pressed or other types of connection types are also possible.
- the energy accumulator 628 can be screwed into a bore in the connecting body 604, which forms an acute angle of preferably more than 15 ° and less than 80 ° with the longitudinal axis of the device 601, in particular more than 20 ° and less than 65 ° and preferably more than 30 ° and less than 45 °.
Landscapes
- Cable Accessories (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
- Multi-Conductor Connections (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL15727559T PL3155694T3 (pl) | 2014-06-12 | 2015-06-05 | Urządzenie do stykania przewodu elektrycznego oraz zespół przyłączeniowy lub łączący z takim urządzeniem |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014008756.5A DE102014008756A1 (de) | 2014-06-12 | 2014-06-12 | Vorrichtung zum Kontaktieren eines elektrischen Leiters sowie Anschluss- oder Verbindungseinrichtung mit einer solchen Vorrichtung |
| PCT/EP2015/001140 WO2015188923A1 (de) | 2014-06-12 | 2015-06-05 | Vorrichtung zum kontaktieren eines elektrischen leiters sowie anschluss- oder verbindungseinrichtung mit einer solchen vorrichtung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3155694A1 true EP3155694A1 (de) | 2017-04-19 |
| EP3155694B1 EP3155694B1 (de) | 2019-10-02 |
Family
ID=53365966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15727559.5A Active EP3155694B1 (de) | 2014-06-12 | 2015-06-05 | Vorrichtung zum kontaktieren eines elektrischen leiters sowie anschluss- oder verbindungseinrichtung mit einer solchen vorrichtung |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US9876290B2 (de) |
| EP (1) | EP3155694B1 (de) |
| KR (1) | KR102398131B1 (de) |
| CN (1) | CN106471679B (de) |
| DE (2) | DE202014010576U1 (de) |
| ES (1) | ES2763523T3 (de) |
| PL (1) | PL3155694T3 (de) |
| SA (1) | SA516380487B1 (de) |
| WO (1) | WO2015188923A1 (de) |
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| CN118970808B (zh) * | 2024-10-17 | 2025-04-11 | 山东华能线缆有限公司 | 一种线缆连接承载装置 |
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2015
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- 2015-06-05 EP EP15727559.5A patent/EP3155694B1/de active Active
- 2015-06-05 ES ES15727559T patent/ES2763523T3/es active Active
- 2015-06-05 KR KR1020177000852A patent/KR102398131B1/ko active Active
- 2015-06-05 PL PL15727559T patent/PL3155694T3/pl unknown
- 2015-06-05 CN CN201580031186.XA patent/CN106471679B/zh active Active
- 2015-06-05 WO PCT/EP2015/001140 patent/WO2015188923A1/de not_active Ceased
-
2016
- 2016-12-12 SA SA516380487A patent/SA516380487B1/ar unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015188923A1 (de) | 2015-12-17 |
| KR20170016001A (ko) | 2017-02-10 |
| DE202014010576U1 (de) | 2016-01-07 |
| US9876290B2 (en) | 2018-01-23 |
| DE102014008756A1 (de) | 2015-12-17 |
| CN106471679A (zh) | 2017-03-01 |
| ES2763523T3 (es) | 2020-05-29 |
| US20170104283A1 (en) | 2017-04-13 |
| KR102398131B1 (ko) | 2022-05-17 |
| PL3155694T3 (pl) | 2020-05-18 |
| CN106471679B (zh) | 2019-05-07 |
| SA516380487B1 (ar) | 2021-07-13 |
| EP3155694B1 (de) | 2019-10-02 |
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