WO2003049238A1 - Stromschienensystem - Google Patents
Stromschienensystem Download PDFInfo
- Publication number
- WO2003049238A1 WO2003049238A1 PCT/EP2002/013723 EP0213723W WO03049238A1 WO 2003049238 A1 WO2003049238 A1 WO 2003049238A1 EP 0213723 W EP0213723 W EP 0213723W WO 03049238 A1 WO03049238 A1 WO 03049238A1
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- WO
- WIPO (PCT)
- Prior art keywords
- profile
- busbar
- conductor
- current
- spacer
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
- H01R25/14—Rails or bus-bars constructed so that the counterparts can be connected thereto at any point along their length
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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
- H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
- H01R25/14—Rails or bus-bars constructed so that the counterparts can be connected thereto at any point along their length
- H01R25/142—Their counterparts
Definitions
- the present invention relates to a busbar system and a method for installing the same.
- Busbar systems are used to feed and distribute electrical energy.
- Known busbar systems are built on a modular principle, so that complex electrical installations can be efficiently implemented with them.
- the consumers are connected to the power rails at the appropriate point.
- Busbar systems are used in particular in building installation as a main power line in transformer switchgear connections, in the supply of individual floors and in floor distribution, but also in DataComCenters and in the industrial area for further distribution of electrical energy, such as in painting lines, conveyor systems, transport systems, Assembly lines, printing and paper machines, production machines.
- busbar systems compared to cables result from the reduction in project planning time by using a modular system, less space required by the compact design, predefined, type-tested technical data that is independent of installation conditions, shorter commissioning times by less wiring, high service and ease of maintenance, in comparison, short cable routes for less space requirements, as well as high reuse value for renovation measures.
- Busbar systems for the above-mentioned purposes are designed for currents from approx. 100 to 8000 A and alternating operating voltages up to approx. 1 kV and direct operating voltages of approx. 1.5 kV.
- a typical conflict of objectives in the design of busbar systems for such high currents is to ensure a safe and low-loss power line at the contact point between two busbar elements with a housing that is relatively small, light and solid in relation to the conductor cross-section of the busbar and with one At the same time, good accessibility to the current conductor, as is known, for example, from conductor rails for lighting purposes or for smaller outputs.
- the non-operational current-conducting profile of a busbar which has a current conductor held in its interior by insulators, must be open, for example in a C, V or U shape or in the form of a slotted "O", in order to make the electrical connection to the current conductor on each
- the high contact forces between the current pick-up or the rail connector on one side and the busbar on the other side bend the open profile, as a result of which the contact forces decrease and the electrical contact is adversely affected.
- Typical high-current rail systems have a mechanically stable housing that is not intended for the power line, in the interior of which electrical conductors with a sufficient cross section are guided. So that the conductor does not touch the housing or neighboring conductors and a certain mechanical stability for the has usable scrapers, it is held on the inside by a sufficient number of support points of insulators, for example made of plastic or ceramic. It is understood that in the high-current rail described, an insulator must be provided at both ends for mechanical support of the conductors at the contact points, so that two adjacent high-current rails can be contacted.
- the electrical installer has to keep the rails in different lengths ready, which ties up his capital, stresses the warehouse and therefore makes the product more expensive for the buyer.
- the busbar system comprises a busbar in the form of a profile which has one or more open profiles, for example U-shaped profiles, in the interior of which one or more conductor profiles are held by one or more insulating spacers which extend over the entire length of the profile ,
- the spacer not only keeps the conductor at certain support intervals, but also without interruption over the entire length extends the busbar, it is achieved that the operational busbar with current conductor and insulator, for example by means of a saw, can be cut to length at any point without it being necessary that the resulting end face is expensive, for example by inserting or gluing one, possibly also supporting insulating piece to have to treat.
- a leakage current path is formed on the cut surface between the current conductor and the housing or other current conductors. It is therefore often necessary to take further measures such as: B. the separate sheathing of the conductor or the provision of grooves in the end face of the spacer in the region of the cut surface forming the end face. Post-treatment measures of this type can be avoided if the spacers provide for a minimum leakage current path dimensioned according to the relevant standards. B. max. 1 kV AC voltage of at least 5.6 mm long enough.
- the ability to cut to length results in a greater flexibility for the installer of the busbars, who can, for example, easily jump over unpredictable obstacles during assembly or compensate for the incorrect dimensions used in the planning. It also enables the installer to compensate for existing construction tolerances directly on site and without further planning steps. Furthermore, the work of the planner is made easier, since the determination of the main geometric dimensions is sufficient for the installation. Geometric detailed planning can therefore be dispensed with, so that the
- the main focus of planning is on the electrical design, for example current, mechanical load and load profile.
- the omission of the detailed planning phase not only reduces the overall project effort, but also financially. There are no unforeseen delays due to deviations from the planning.
- the components of the busbar system are made in one piece, they can be manufactured more cheaply and easily. It is in particular possible to produce the connecting profile together with the busbar housings made of metal or else the busbar housing together with the spacer made of plastic.
- the busbar system also includes, for example, a connection profile to be fastened to a wall or ceiling, to which the busbar profiles can be clicked and fixed.
- this connection profile enables easy assembly of the conductor rail system, since the comparatively light connection profile, which has no heavy parts, such as the solid conductor, is first attached to the ceiling or wall using conventional means, e.g. screws, bolts, dowels, and then the heavier conductor rails via a clamping mechanism along the connection profile be clicked.
- the locking lugs of the connection professional which snap into place, can then be fixed, for example by means of a screw, in such a way that the busbars are secured against unintentional removal / falling out, that is to say are firmly connected to one another.
- connection profile has connections for receiving two conductor rails on both sides
- the system can be used particularly flexibly, that is to say the phases and current strengths can be varied by combining conductor rails, which can also be configured differently in terms of performance.
- fastening means for connecting to the connection profile 1 are provided on at least two sides, preferably three sides, of the conductor rail profile.
- Seals that connect the face of two contacting busbars protect the inside of the busbar system from dirt, dust and moisture, i.e. the so-called industrial atmosphere.
- leakage currents can be more difficult and the distances necessary to avoid leakage currents (e.g. the spacer) can be shorter, which makes the system more compact, lighter and cheaper.
- the seals are therefore not measures to extend the leakage current paths, such as the separate sheathing of the current conductor described above or the provision of grooves in the end face of the spacer in the region of the cut surface forming the end face.
- the overall construction cannot be bent open. This ensures that the individual elements for assembly purposes (e.g. when clicking) Although they can be bent up elastically, the cover results in a closed design after assembly, so that the mechanical contact forces introduced, for example by the current pickups or busbar connectors, do not lead to a disadvantageously acting deformation of the busbars. As a result, the system tolerances required for electrical contact are adhered to.
- the closed form thus makes contacting safer, enables a more compact design and less material consumption, enables a favorable ratio of housing to current conductor, ensures a small external dimension and more mechanical stability. It is important that the cover not only has a touch and privacy function, but that together with the busbar system it forms a closed unit in the mechanical sense. The cover therefore fulfills a dual function according to the invention.
- the closed system according to the invention therefore has the effect, in particular, that the contact forces, which are in any case reduced in any case by spring elements in comparison to direct contacting, partially cancel one another and the load on the housing material due to the all-round closed design of the housing, essentially as in the case of a pipe subjected to internal pressure, essentially limited to uncritical mechanical tensile stresses instead of critical bending stresses.
- An open, for example C-shaped profile, would be opened by the contact forces.
- the wall thicknesses of the housing can therefore be significantly smaller than the thickness of the current conductors and the essential requirement for economy can be met.
- the cover to achieve a closed design can be interrupted in sections or have openings for making connections in such a way that the mechanical stability of the still closed busbar system described above is not impaired. This enables the busbars to be contacted at any point, for example by means of taps.
- the opening for the passage of cables is closed by a seal so that the inside of the busbar is protected against dirt and insects.
- the closed design also enables the fastening of Loads, for example junction boxes, on the busbar system. At least 10 kg per meter length can be attached.
- Short-circuit-related forces on the current conductors like the contact forces described, act in such a way that essentially uncritical tensile stresses occur instead of critical bending stresses in the housing material, so that large housing material cross sections can also be dispensed with in this case. Even when cutting to length, for example sawing off, it is ensured that the current conductor does not suffer any mechanical deformation, such as bending, and therefore remains true to size.
- the spacers are preferably designed in the form of a hollow chamber profile. This leads to material savings and weight savings compared to, for example, full profiles.
- the individual hollow chambers serve as an air insulator and also reduce the thermal conductivity of the insulator. If the profile cross section of the
- Spacer has a profile made of struts that form the cavities, the spacer fitted into the conductor rail profile, which must have a certain thickness in particular to avoid leakage currents, is nevertheless mechanically sufficiently stable. Therefore, it is possible to use the conductor rails with the conductor held therein as a whole by means of, for. B. to a saw. Also, the current forces that occur during operation cannot deform the current conductor, which is why the electrical contact to connectors or taps, for example, is not reduced, and contact with other phase conductors with the housing of the busbar (short circuit) is avoided.
- the mechanical compressive stresses in the spacer / insulator profile caused by the contact forces of the resilient contact elements are to be designed together with the plastic used so that there is no significant flow of the plastic in the region of the webs of the spacer even during the period of use of the busbar system.
- the resilient contact elements are also in this sense interpret that a slight setting or flow of the plastic can be compensated for without a negative impact on the intended current carrying capacity. This ensures the functionality of the busbar system and pantographs for the intended period of use of several years.
- the person skilled in the art can determine the necessary design by systematic tests while changing the parameters, in particular spring force, number of springs, spring material, conductivity of the spring surface and choice of material for the spacer.
- the hollow chamber profile also makes it possible to manufacture the spacers shaped by a profile-shaping process, such as extrusion, more precisely, in particular by means of a calibration path or subsequent processing, such as grinding, for example, to bring the profiles to the desired dimension.
- a profile-shaping process such as extrusion
- subsequent processing such as grinding
- This ensures that its external dimensions are of the order of a few hundredths of a millimeter true to size. This is important for the electrical contact between the current conductor and the wiper / connector.
- the hollow chambers are pressurized and / or a vacuum is applied outside the cooling section, so that the profile to be calibrated is pressed against the mold when it cools, resulting in particularly precise dimensions and compensating for shrinkage.
- the spacers have contact surfaces on their outer wall and the conductor rail profiles have a plurality of contact surfaces on their inner wall.
- the spacers are fixed in the interior of the conductor rail profile via these contact surfaces.
- the correct positioning of the current conductors held by the spacers also depends on the dimensional accuracy of the contact surfaces of the busbar. If those
- Stromschienenpro file or profiles in general is subject to ongoing wear when pressing the aluminum material through the extrusion die.
- the wall thickness therefore increases with each kilometer of profile produced.
- To the small tolerances of a total of less necessary for a safe electrical contact To be able to adhere to 0.2 mm, it would normally be necessary to identify the finished profiles by lot, for example, to be able to assign them to suitably manufactured spacers.
- the serrated profile on the other hand, enables simple recalibration in such a way that the tips of the serrated contact surface can be compressed to size using a roller / tube.
- the tapping elements have connecting elements designed as spring elements
- the springs make it possible to compensate for certain tolerances in the distance between, for example, the connector and the current conductor.
- the common screwing of two current conductors shows poorer long-term behavior, since force must be applied over a much larger area in order to achieve a comparable and necessary for a reliable current transfer
- the lower contact forces which are sufficient for the current transfer and which act on the current conductor, exert a comparatively small force on the spacers. These can therefore advantageously be made lighter and as hollow profiles.
- the taps / connectors are over Spring contacts create the current flow, easier and more flexible to insert without tools at any point of the busbar system.
- the spring elements also have the advantage that the contact pressure is defined in the range of the defined spring travel. However, the spring travel is limited by the current carrying capacity on the one hand, i.e. the area where the spring force becomes too low or goes to zero and on the other hand by the plastic deformation in the event of excessive compression of the spring. The spring travel desired for the application with an approximately constant spring force must therefore be greater than the tolerance of the busbar system.
- two similar, advantageously identical, contact elements are provided which are arranged one above the other in such a way that the springs of one element are located in the gap between two adjacent springs of the other element, hereinafter referred to as a double contact element.
- a double contact element This ensures that the amount of current that can be conducted by the double contact element is doubled for the same area used.
- the busbar system is generally more short-circuit proof, since the contact elements are not immediately overheated in the event of a short circuit and therefore do not have to be replaced.
- double contact elements are particularly inexpensive because they can be manufactured uniformly if they consist of two identical contact elements which are offset from one another. It should be noted that the contact elements have springs that protrude slightly asymmetrically above and below a central plane. With a suitable design, the springs of the two contact elements placed one on top of the other end in one plane and ensure a uniform current carrying capacity of both contact elements.
- Another advantage of the movable connection instead of the screw connection of the current conductors is that the system can expand thermally without any stresses that lead to deformation being built up. Depending on the load, there may be temperature differences of up to 100 ° C between zero and full load during operation for the power conductor. Since the current conductor is movably mounted in the longitudinal direction in the spacer and this in turn in the housing, they can extend differently and stress-free in the longitudinal direction. The spring fins of the connectors slide over the surface of the current conductors when they move against each other as a result of thermal expansion. This scraping tears open the oxide skin that forms in the contact area between the connector and the current conductor, and improves the current carrying capacity in the long term.
- the flexible spring lamellae also make it possible to contact the conductor with the connector by pushing it in the longitudinal direction of the conductor rail. This means that any thin oxide layer that may be present is scraped off during initial assembly and good electrical contact is made. In addition, this additional mounting option significantly simplifies the mounting of the busbars in narrow installation situations, such as in floor connecting shafts.
- Screwed connections are therefore more susceptible to faults and therefore require maintenance.
- the invention also includes current conductors which are held parallel to one another along the two U-legs of the current rail in the interior of the spacer.
- the current conductors can have different cross-sections and thereby make the system suitable for different currents.
- the opposing current conductors can, for example, have a different phase, so that four-phase systems with lower demands on the current strength can be realized with a single double-U busbar profile.
- the cross section of the two current conductors is combined and thereby further increased, that they are connected to one another by a further leg and thereby form a U-shaped conductor profile.
- the cover can only be removed with a tool or special tool.
- a tool or special tool can be, for example, a screwdriver or a lever that acts on the nose of the cover, comparable to a bottle opener.
- two current conductors are provided in each cavity of the busbars, which are applied to different phases.
- a double U-track profile is sufficient, with each U-profile holding two conductors with different phases, i.e. two phases. This reduces the stray field magnetic area of the conductors and thus the stray field magnetic effect. Fewer eddy currents are therefore induced in the metallic housing of the busbar, which is why the power loss and heating of the system are reduced. Therefore, more current can be transported in the busbar that is switched off in this way with the same losses.
- the connector or gripper must be designed with two poles, ie two pieces with a connecting insulation. This makes contacting particularly easy.
- Busbars This is achieved either by a connection profile, which is designed to accommodate one or more busbars, or the repeated connection of alternating connection profile to the busbar.
- the current intensity conveyed by the busbar system can also be influenced by a changed cross section of the current conductors. It is important to ensure that the current conductor with a reduced cross-section also has external dimensions such that contact with the taps / connectors is ensured and the current conductor can be securely fixed in the spacer. This avoids oversizing the cross sections in systems for small
- Fig. 1 shows a section through the busbar with built-in connectors on the
- FIG. 5 shows a consumer for tapping the current from a power rail with a consumer element equipped with connecting conductors and an unpopulated consumer element
- FIG. 6 shows a connecting element with a contact element for contacting two pairs of busbars abutting one another
- FIG. 7 shows a detailed view of the jagged contact surface of the busbar
- FIG. 8 shows various options for executing the components in one piece.
- Fig. 1 shows a section through the busbar with built-in connectors at the joint of two busbars. It can be seen that the connection profile 1 forms a closed system together with the two busbars 2 and the cover 4, as a result of which a high mechanical stability of the busbar system is achieved with less use of material.
- the cover 4 also protects the current-carrying components, such as the current conductor 40 and the connector 30, against environmental influences and unintentional contact.
- connection profile 1 which is designed here as a triangular connector, is attached to a ceiling or wall.
- Fastening means for connecting to the busbars 2 are provided on the two side legs of the triangular connector 1.
- the attachment is carried out in the exemplary embodiment by double-sided clamp-like profile lugs 8 for snapping into the double-sided profile grooves 9 of the busbars 2. Clamping fastening is effected, for example, by the profile lugs 8 of the triangular connector opening and then closing when the busbar 2 penetrates, the profile lugs then 8 then snap into the profile groove 9 and thereby hold the busbar.
- the profile lugs 8 are provided at the end of an upper or lower tongue 50 and 51, the lower tongue 51 being elastically bendable to the side as long as the clamping rail 5 for fixing the tongue 51 has not yet been installed.
- the lower tongue 51 also forms a stop 10 against which the busbar 2 abuts with a stop surface 11 in the installed state. A particularly dimensionally stable connection between triangular profile 1 and busbar 2 is thereby achieved.
- the profile lugs 8 and also the rails 2 are fixed on one of their sides, that is to say secured against unintentional pulling out of the connecting profile.
- the busbars it must not be possible for the busbars to be torn out of the connecting profile by the attachment of loads, for example junction boxes.
- the cover 4 fixes the rail on one of its other sides, so that the rail is thus fixed on two of its long sides or edges.
- the space between the upper and lower tongues 50 and 51 is easily accessible before the busbars 2 are clamped in and therefore forms a tube space 13, which is used, for example, as a cable duct for control, measurement and data lines, bus systems, fiber optic cables or for carrying technical gases, such as B. compressed air, oxygen, etc. can be used, openings in the connection profile can be provided in an advantageous manner to lead these lines out of the pipe space serving as a cable duct.
- This is advantageous if, along the busbar system, there are provided distribution boxes attached to the busbar system, which can be controlled and monitored via a bus, or are equipped, for example, with a compressed air line.
- the busbar system then fulfills several tasks at the same time: 1) It feeds the current to the distribution box via the current conductors 40 in conjunction with taps not shown in FIG. 1. 2) It carries the distribution box because of its high mechanical stability. 3) Finally, it carries the data lines or technical gases intended for the control / monitoring of the distribution box.
- the exemplary embodiment shown in FIG. 1 shows that the busbars 2 have an opening 12 for tapping current inwards, that is to say in the direction of the cover 4.
- the busbars can also be latched the other way around in the connection profile, as a result of which power can also be tapped from the outside.
- the busbars 2, like the connecting profile 1, are made of a high-strength material, for example an aluminum-magnesium alloy, such as AlMgSi0.5, by a profile-shaping process, such as edges, extrusion or extrusion.
- Each busbar 2 consists in principle of two U-profiles, each with a profile opening 12 for receiving the spacer 20 and the current conductors 40 held therein.
- the spacer 20 does not support the two current conductors 40 in sections at certain support intervals, but continuously over the entire length of the busbars , This ensures a short-circuit protection to a particular extent and the conductor rail can be cut to length at any point, for example by sawing.
- the spacer is also produced particularly inexpensively as an endless profile, it not being of solid construction, but rather having a cross-section of cavities 27 formed from webs, which leads to a saving in material and as a result of which the insulating effect of the air is used. Any insulating, extrudable and mechanically sufficiently stable material is suitable as material, in particular plastics such as PC, PC-ABS, PPS, PPOetc.
- the spacer 20 is mirror-symmetrical about its longitudinal axis, that is to say it partially clasps with its two side walls in each case a current conductor 40 which is designed, for example, as an essentially rectangular, band-like profile.
- the rectangular profile of the current conductor 40 tapers at its two ends to form a wedge-shaped tongue 42, which is held in a corresponding groove 24 in the spacer 20.
- This free side 41 is used for contact with the taps or connectors 30 which are in the 2 to 6 are explained in more detail.
- the free side 41 of the current conductor 40 is aligned very precisely with respect to the longitudinal axis of the busbar 2, that is to say with a tolerance of less than 0.2 mm.
- the tolerances of the busbar, spacer and current conductor components add up, the spacer and busbar profile components being particularly critical in the production by extrusion processes.
- the hollow chamber profile of the spacers 20 is deformed during extrusion during cooling. In that runs through a vacuum calibration section after the pressing process, its external dimensions can be manufactured with a tolerance of a few hundredths of a millimeter. However, it is more difficult to continuously manufacture the walls of the conductor rail profile with a comparable tolerance. The more the extrusion mold wears out, the thicker the walls become and thus the contact surface 21 on the inside of the profile, which positions the spacer 20, changes its position.
- the spacer 20 is not only held in the profile opening 12, but is also largely held in shape by it.
- Known busbar systems for example light bars, carry a spacer element with current conductors which serves as an isolator, the strength and shape retention of which alone determine the position of the current conductors.
- the spacer is only attached to the housing. According to the invention, however, the housing itself contributes to the positioning and fixing of the current conductors without being directly connected to them.
- FIG. 7 explains the serrated contact surface 21 of the housing 3 of the busbar, consisting of grooves 101 and serrations 102 produced by the extrusion tool.
- the profile shown in FIG. 7 is generated.
- the pressing tool is particularly stressed and is therefore subject to greater wear than in the recesses in the pressing tool, which form the contact teeth 102. Therefore, the wear on the pressing tool is particularly noticeable by a flattening of the grooves 101, as indicated by the broken line 101 'in FIG. 7B.
- the outer side of the spacer 20 bears against the prongs 102, which changes less as a result of the wear of the extrusion tool, the wear for the positioning of the spacer 20 is not noticeably less noticeable.
- Another advantage of the contact surface of the busbar profile 2 formed by serrations is that such a profile can easily be recalibrated by rolling or rolling, i.e. the tips of the prongs 102 become comparatively light since only a little
- Material is to be shaped to size by compression, as shown in Fig. 7A, by the dashed line.
- the busbar configuration shown in Fig. 1 is designed so that each chamber of the busbars can each hold two current conductors 40 which carry the same current phase.
- each chamber of the busbars can each hold two current conductors 40 which carry the same current phase.
- the two-pole connector 30 shown here consists of the two highly conductive solid poles 34, 35, which are conductively connected to the conductors 40.
- the poles are held by an insulator frame 11, which forms a mechanical unit 30 with them.
- the insulator 11 forms a handle 33 at its free end, which facilitates the insertion or removal of the connector 30 into the opening 12 of the profile 2.
- the mounting direction can run both in the drawing plane and perpendicular to it. In the assembled state, the handle 33 protrudes slightly beyond the profile opening 12 for this purpose. An unintentional electrical contact between the connector 30 and the environment after its assembly is prevented by the insulator rail 11.
- the connector is therefore manageable in operation.
- FIG. 6 shows a cover clip 10, preferably made of spring steel, which finally closes the profile opening 12 and fixes the connector in the conductor rail profile. It also protects the connector against accidental contact and the contacts against the ingress of dirt or unintentional additional mechanical loads.
- the connector 30 is thus completely fixed all around, also on the other side through the head region of the spacer 20.
- the Cross sections of the profile strips, and optionally the spacers 20, are provided with a seal, for example in the form of cellular rubber provided with a one-sided or two-sided adhesive coating.
- a sufficiently elastic material also enables the sealing of interconnected busbars that are not exactly aligned in their longitudinal axes. An elastic seal can therefore absorb certain “kinks” without the sealing ability being adversely affected.
- Fig. 2A illustrates that for the construction of a busbar system, even a single busbar profile with two U-shaped openings for receiving the spacers and current conductors is sufficient to implement a three-phase + zero busbar system.
- Each of the current conductors P1, P2, P3 and N is connected to a phase or zero. Because the conductors lie close together, their stray field magnetic area is reduced, which results in lower power loss and heating of the busbar housing.
- Another use of the conductors for example a 2- or 6-phase or to convey direct current, is also conceivable.
- the cover 4 closes the opening of the busbar 2 and at the same time fixes its free leg against undesired bending.
- the system shown in Fig. 2B includes a total of four bus bars 2, so that in
- connection profile 1 is not designed here as a triangular profile, but as a double triangular profile. This is a one-piece, compact connection of two triangular profiles known from FIG. 1.
- the busbars 2 and the cover 4 can be adopted unmodified from the embodiment in FIG. 1.
- FIG. 2C shows an exemplary embodiment for six times the current strength compared to FIG. 2A.
- a triangular connection profile 1 as is known from FIG. 1, is mounted here alternately with a busbar 2, so that there is an overall zigzag cross section. Every second connecting profile is attached to the ceiling.
- the examples shown in FIGS. 2A to C are intended to show that the busbars can be combined in order to implement busbar systems for different current intensities.
- 2A-2C have a closed design in the sense of the invention, since the busbars 2 are each fixed on two sides.
- FIGS. 4A and 4B show the configuration of a contact element 60 which forms the surface of the tapper or connector 30 in the region of the electrical contact to be produced.
- Free-standing lamellae 61 run between two parallel webs 62 and are twisted out of the web plane. The twist in the central section of the lamella 61 is greater than at the two ends on the web side. The upper and lower ends of the central region of the twisted slats form a contact zone 63 which the
- FIG. 4A in connection with FIG. 1 explains, by way of example, a possibility of fastening a contact element 60 to the connector 30, which is also analogously applicable to the tapper.
- the two webs 62 are pressed against the ends of the insulator frame 11, which also holds the poles 34, 35 together.
- the free ends of the insulator frame have grooves 38 for receiving the side edges of the webs 32. This particularly prevents the contact element 60 from moving out of the image plane if, for example, during the installation of the connector 30 in a direction perpendicular to the sheet plane between the current conductors 40, which exert a clamping pressure on the contact elements.
- Fig. 5 shows a pickup for tapping the current from a busbar.
- the pickup 70 comprises two similar tapping elements 71, which, like the connector 30, is designed with two poles with two poles 34, 35 connected by an insulator frame 11.
- Each of the poles 34, 35 has a free-standing connection contact surface 74, which is conductively connected, for example by welding, to a connection conductor 73.
- the connection conductor has an opening for connection to the current conductor by means of connecting parts that are common in electrical installations.
- the two poles 34, 35 of the tapping element 71, like the connector 30, are provided with contact elements 60, with a smaller number of contact lamellae 61 than with the connector 30 being sufficient, since the tapper generally only part of the one
- Rail 72 interconnected tapping elements 71 has particularly easy to insert into the two openings 12 of a double-U busbar, so that by plugging in a particularly simple connection of the three phases and neutral conductors to a consumer, distribution box or the like can be realized.
- the busbar system is particularly flexible if, in addition to the straight connectors already described, 30 flexible angle connectors, not shown, are provided. These can be formed, for example, from two taps connected by a cable, such as, for example, a spiral cable or, preferably, a cable consisting of highly flexible strands (see also FIG. 5).
- the cuff is advantageously both flexible in terms of length and angle, ie it can be used for all conceivable connection problems, even with two angular planes.
- the flexible connecting piece also serves as an expansion joint, for example when using the busbar system in technical systems that are subject to high thermal or mechanical expansion or in which individual system parts vibrate.
- the connection cable lying inside the sleeve with a lot of play is able to absorb the change in length without any force acting on the rest of the conductor rail.
- the flexible angle connector according to the invention can therefore be used for all angles from 0 to 180 °, preferably 0 to 135 °, and moreover solves all connection problems which can occur due to an offset or a relative movement of two busbars to one another.
- a common cavity can be provided in the interior of the bellows for receiving all connecting cables.
- a common cavity makes it possible, for example, to accommodate the cable running, compressing or compressing inside a bend, while the cable running in the outer region of the curve is almost taut.
- the bellows should be tightly connected at the connection point to the end faces of the busbars for safety and contamination reasons, for example by gluing or mechanical fastening.
- the bellows can also be designed so that two rails 2 can be connected to each other, or that an entire busbar system profile (several busbars 2 simultaneously) are connected to each other.
- the cable pipe can be guided around bends, for example for data lines or glass fibers.
- the flexible angle connector allows an unrestricted change of direction in the route of the conductor rail.
- Unpredictable obstacles can also be easily skipped during assembly.
- a handicap caused by other trades, e.g. piping due to air conditioning and ventilation, can also be reacted to promptly.
- the planner can also achieve a planning goal by simply defining the main routes, even in the case of demanding architectural structures. Determining the exact
- Angle dimensions are done by the installer during assembly on site. Dates and costs are therefore not negatively affected by unforeseeable events and the planning effort is reduced.
- Fig. 8A shows one piece manufactured together
- the shafts 13 are closed instead of being open laterally, as in FIG. 1.
- the shafts can serve as cable ducts or compressed air or cooling water pipes.
- the heat generated in the system by the current resistance can be dissipated via the cooling water.
- plastic housings and connecting profiles can be in one of the open or closed shafts, for. B. 13A a grounding conductor (PE).
- PE grounding conductor
- FIG. 8B essentially corresponds to FIG. 8 A, but the busbar and connecting profile are connected to one another in two pieces. However, the shafts 13 cannot be opened laterally either. However, unlike the embodiment from FIG. 1, the connection here is not made by clicking, but rather by pushing it in in the longitudinal direction.
- the busbar system according to the invention is superior in conceptual clarity to the known busbar systems. It consists of essentially six components. This includes the connection profile 1, the busbar 2, the straight connector 30, the angle connector, the feed element and the universal current collector.
- the small number of individual components ensures maximum clarity on the Construction site reached. The site preparation time is reduced and the actual start of assembly takes place shortly after delivery of the components. Due to the small number of components, the creation of the material lists is extremely easy during the planning phase. The administrative effort for tendering, ordering and tracking deadlines is reduced to a minimum. The clear concept makes efficient cost compliance and warehousing easier.
- the current tapping in the busbars according to the invention is not subject to any system-related grid dimensions. Power can be tapped at any point, the current being tapped via special spring contacts 60 which, together with the tapper, are inserted at any point on the busbar between the current conductors 40. In particular, no fixed rail contact point is necessary. If necessary, the tap can even be pulled under voltage during operation and reinserted at another location. This makes it easier to make changes to the electrical installation within the term of a building or an industrial system. Thanks to the flexible tappers that can be used at any point, the busbar system can be easily adapted to any change in use. For the operator, there is a high degree of flexibility in use, or flexibility in the use of space with DataComCenters.
- Another advantage of the invention lies in its fastening technology.
- the click system described above between the connection profile and the individual busbars or the cover ensures simple, fast, problem-free and harmless, even overhead installation at any location.
- the heavy loads (busbar) simply have to be clicked in overhead, after which they are already being held temporarily.
- the final fixation by the screw 7 and the clamping rail 5 can then take place without physical strain on the fitter. Installation and maintenance are carried out using simple standard tools, e.g. screwdrivers, dowel drills, etc.
- the track system is also visually appealing because of its clear and simple elements. 1, only the material, for example aluminum in the shape of a triangle, can be seen. By the The system can therefore be installed in public areas with attractive design, even in the visible area, where it is even perceived as a design element. The costs for hiding the busbar behind the coverings and the installation of expensive inspection flaps in the ceiling construction are therefore eliminated. The free access also makes maintenance and modification of the system easier, as the facings do not have to be removed beforehand.
- the system can be fully integrated, for example, in suspended ceiling constructions thanks to easy-to-install additional connection profiles.
- the individual components of the busbar system are made of sorted materials (no paint or insulating material-coated metals), which enable later separation and recycling without problems.
- the materials are particularly environmentally friendly when halogen-free, non-toxic plastics are processed in the spacers 20.
- a particular advantage arises when additional materials are used that minimize the fire load in the event of a fire, which is positive for operational safety. In the event of a fire, there is in particular no additional damage to buildings or operating equipment caused by toxic substances and the risk of endangering people is minimized.
- each system component e.g. Busbars, housings, connectors, consumers, contact lamellae, spacers, current conductors, etc. also develop their effect according to the invention independently of a busbar system and are not bound to it.
- the invention is therefore not limited to a busbar system as a whole. Rather, the components mentioned can also be the subject of a further application.
Landscapes
- Installation Of Bus-Bars (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2002358604A AU2002358604A1 (en) | 2001-12-04 | 2002-12-04 | Conductor rail system |
EP02792889A EP1451906A1 (de) | 2001-12-04 | 2002-12-04 | Stromschienensystem |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10159401.1 | 2001-12-04 | ||
DE2001159401 DE10159401A1 (de) | 2001-12-04 | 2001-12-04 | Stromschienensystem |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003049238A1 true WO2003049238A1 (de) | 2003-06-12 |
Family
ID=7707906
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2002/013723 WO2003049238A1 (de) | 2001-12-04 | 2002-12-04 | Stromschienensystem |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1451906A1 (de) |
AU (1) | AU2002358604A1 (de) |
DE (1) | DE10159401A1 (de) |
WO (1) | WO2003049238A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8286768B2 (en) | 2007-06-11 | 2012-10-16 | Conductix-Wampfler Ag | Insulating profile for a conductor line |
US8302750B2 (en) | 2007-06-11 | 2012-11-06 | Conductix-Wampfler Ag | Multi-pole conductor line |
EP3175516A4 (de) * | 2014-07-31 | 2018-09-26 | Power Distribution Inc. | Stromschienenspleissverbinder |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10359541A1 (de) * | 2003-12-17 | 2005-07-14 | Paul Vahle Gmbh & Co. Kg | Kompakte mehrpolige Schleifleitung hoher Stabilität |
DE102007034930A1 (de) * | 2007-07-24 | 2009-01-29 | Rehau Ag + Co | Isolierprofil, Verfahren zur Montage eines Isolierprofils sowie Stromschiene |
DE102011052482A1 (de) * | 2011-08-08 | 2013-02-14 | Demag Cranes & Components Gmbh | Schleifleitungsschiene mit Aufnahmetaschen für Stromschienen |
DE102021123913A1 (de) | 2021-09-15 | 2023-03-16 | Preh Gmbh | Stromschienenanordnung insbesondere zur elektrischen, mehrpoligen Hochstromverbindung in einem elektrisch angetriebenen Kraftfahrzeug |
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DE2119572A1 (de) * | 1971-04-22 | 1972-11-09 | Hoffmeister-Leuchten KG, 5880 Lüdenscheid | Metallische Stromschiene von U-förmigem Querschnitt für die Aufnahme in die Schienenöffnung einsetzbarer Stromabnehmer für Leuchten oder sonstige ortsveränderliche Stromverbraucher |
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2001
- 2001-12-04 DE DE2001159401 patent/DE10159401A1/de not_active Ceased
-
2002
- 2002-12-04 WO PCT/EP2002/013723 patent/WO2003049238A1/de not_active Application Discontinuation
- 2002-12-04 EP EP02792889A patent/EP1451906A1/de not_active Withdrawn
- 2002-12-04 AU AU2002358604A patent/AU2002358604A1/en not_active Abandoned
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DE2119572A1 (de) * | 1971-04-22 | 1972-11-09 | Hoffmeister-Leuchten KG, 5880 Lüdenscheid | Metallische Stromschiene von U-förmigem Querschnitt für die Aufnahme in die Schienenöffnung einsetzbarer Stromabnehmer für Leuchten oder sonstige ortsveränderliche Stromverbraucher |
US4494808A (en) * | 1981-12-17 | 1985-01-22 | Harald Widell | Electrical collector rail with connectable adapter |
EP0215753A2 (de) * | 1985-09-19 | 1987-03-25 | TARGETTI SANKEY S.p.A. | Elektrische Schiene mit zylindrischer Evolute für Beleuchtungsvorrichtungen (Adapter) |
US5261840A (en) * | 1991-06-27 | 1993-11-16 | Sotax Ag | Contact element and process for the production of a contact element |
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GB2311419A (en) * | 1996-03-22 | 1997-09-24 | Caradon Mk Electric Ltd | Stop end for electrical trunking |
DE19845321A1 (de) * | 1998-10-01 | 2000-04-13 | Unitec Gmbh Tech Entwicklungen | Vorrichtung und Verfahren zur Herstellung von dünnwandigen Glattrohren aus Kunststoff mit gewellten Sektionen in unterschiedlichen Abständen zueinander |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8286768B2 (en) | 2007-06-11 | 2012-10-16 | Conductix-Wampfler Ag | Insulating profile for a conductor line |
US8302750B2 (en) | 2007-06-11 | 2012-11-06 | Conductix-Wampfler Ag | Multi-pole conductor line |
EP3175516A4 (de) * | 2014-07-31 | 2018-09-26 | Power Distribution Inc. | Stromschienenspleissverbinder |
Also Published As
Publication number | Publication date |
---|---|
EP1451906A1 (de) | 2004-09-01 |
DE10159401A1 (de) | 2003-06-12 |
AU2002358604A1 (en) | 2003-06-17 |
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