FI89844C - Current rail system - Google Patents

Description

89 844

BUSBAR SYSTEM - STRÖMSKENSYSTEM

The present invention relates to a busbar system according to the preamble of claim 1.

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Today, there are various electrical installation systems in use, which include busbars as well as various connecting parts with which busbars can be connected to each other as well as to various electrical devices.

10 In this application, the electrical installation system is referred to as a busbar system. In the context of this application, a connecting part means a connecting part by means of which an electrical device, such as a luminaire, is connected to a busbar or the rails 15 are connected to each other by an extension or branch connection.

In this context, a busbar means a rail with a uniform cross-section, in which electrical conductors run in the longitudinal direction of the rail to carry current.

20

It is known that homes, shops, restaurant halls and exhibition and other premises use busbars on which electrical equipment, for example lamps, can be easily installed anywhere on the rail. In such a rail 25, the conductors generally run in grooves inside the trough-like rail, and the rails can be extended or branched by means of various connectors.

The disadvantage of these systems has been that the joint • 3-0; can be implemented with respect to the cross-section of the rail only in a certain direction as an extension, angle or branch connection, and that electrical devices, which are usually luminaires, can be connected to the rail only from one side. Such a rigid busbar connection method is structurally limited.

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WO 90/11471 discloses a luminaire system with one or more low voltage luminaires operating in the voltage range 6 to 24 V connected to supporting, branched arms. The arms act as electrically conductive elements in the system 5. The arms, which are at least substantially circular in cross-section, are formed partly of electrically conductive and partly of insulating material, and the branches are arranged in such a way that the arms can move relative to each other at the branches. In addition, the branch points 10 are implemented in such a way that the switching on of the current by making contact between the electrically conductive parts of the different arms and the disconnection of the current by disengaging said parts from each other takes place by mutual movement of the arms.

15 A limitation of the solution according to said publication is that the power is in all cases switched on in certain positions of the conductors and switched off in other positions.

Thus, due to the structure of the system, current cannot flow from one arm to another in all positions. This limits the scope for the application of Annex 20. Another limitation of such a system is that since the conductors run in the longitudinal direction of the arm and the branching is made in this way, there can in practice be only two conductors. The third drawback of the system is that the joint-25; According to the van, the conductors must be located on the surface of the arm, in which case only small voltages can be used, the so-called protection of tension. When a protective voltage is used to supply power to several luminaires, the currents are high and the arc generated in the event of a fault can pose a dangerous risk factor. When the conductors are located on the surface of the arm, an arc can be generated by inadvertently contacting the conductors simultaneously with an electrically conductive pliers or scissors. Another disadvantage of the system is that the conductor must be substantially 35 due to the connection method; round, which limits, for example, the aesthetic and functional possibilities of the invention.

C 'Γϊ O A · ι 3 The present invention provides a more versatile and secure system than known solutions. In the busbar system according to the invention, the rails can be connected to other rails or electrical devices by means of separate connecting parts according to the appended claims.

The busbar system according to the invention is particularly well suited for use in lighting, but other electrical devices can also be connected to the system.

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The solution according to the invention can be applied even more safely in electrical installation systems in which a protective voltage of 6 to 24 V is used, as well as at higher voltages.

This is made possible in particular by the fact that by means of the intermediate conductors according to the invention 15, the conductors are no longer on the surface of the rail in the busbar, but can be mounted in grooves in the rail, even partially or completely in the so-called shield. to a blind spot so that it is not possible to generate an arc between them or to receive an electric shock.

By means of the system according to the invention, a connection between two or more busbars can be established so that the connection point can be oriented in different directions in the cross-sectional direction of the busbar or the connection can be rotated in any direction around the rail without interruption. This provides new two- and three-dimensional structural possibilities and makes possible structures other than those based on a rectangular joint.

On the other hand, the system makes it possible to make a connection in which the power is switched off in some positions at the connection point. Such a connection can be applied, for example, in a connection part between two rails and in a connection part between a rail and an electrical device .35, for example an example is connected to the rail; 9 n 4 4 keksi luminaire, in which case the connecting part also acts as a circuit breaker.

Furthermore, the connecting part according to the invention makes it possible for the busbar used in the system, although the connecting part can be rotated around the rail, to be of any cross-section, for example rectangular, oval, triangular, etc., even if two or more 10 pairs of busbars of different shapes or sizes, i.e. profiles, while the connecting parts remain the same. There may also be more than two current conductors in the rail and the connecting part, because the conductors of the connecting part are arranged in succession in the longitudinal direction of the rail.

15

The connecting part according to the invention also makes it possible to lock the connection to the rail in its longitudinal direction. This is an advantage especially in dependent systems.

The connecting part according to the invention also provides a connection which can be slid in the direction of the busbar, and thus, for example, the position of the lamp arm or its length can be adjusted without dismantling the system.

.25 In addition, the system according to the invention is advantageous and the system is easy to assemble and complete.

The invention is described in more detail below. with reference to the accompanying drawings, io in which

Figures 1a to 1e show a busbar with intermediate conductors.

Figures 2a to 2d show a busbar, intermediate conductors and a connecting part.

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Figures 3a and 3b show the connection between two rails.

Figure 4 shows another connection between two rails.

Figure 5 shows the attachment of the spacer ring to the rail.

Figure 6 shows an intermediate ring consisting of two halves.

Figures 7a to 7e show busbar connections according to the invention.

Figures 8a to 8e show rails.

Figures 9a to 9i show application examples of the invention.

Fig. 1a shows a busbar of rectangular cross-section (section A -A in Fig. 1b) with an insulating body 1 and current conductors 3a and 3b arranged in grooves 2a and 2b on opposite sides of the rail 20. Two conductive intermediate conductors 4a and 4b for each conductor are arranged on the rail at a small distance from each other. The inner hole of the conductors is in the shape of the outer diameter of the rail and the outer surface is preferably round. The intermediate conductors have internal projections 5 which fit into the groove and which contact the conductors 3a and 3b. If there are several conductors, for example four, an equivalent number of intermediate conductors is also required.

Fig. 2a shows the intermediate conductors of Fig. 1a connected to a connecting part 6 with conductors. The connecting part has two connecting conductors 6a and 6b placed inside the insulating body 7 of the connecting part. The connecting conductor 6b has a curved end 8 (section B-B, Fig. 2b) about the length of a circular quarter, which is placed on the protrusion-35 of the intermediate conductor 4b. The connecting part can therefore rotate around the rail in the plane of its diameter as indicated by arrow so that the stream 9 9 of 4 4 6 passes all the time. The conductors of the connecting part can be connected to another rail, to other intermediate conductors or to an electrical device such as a lamp or a transformer.

Fig. 1e shows a solution in which the intermediate conductor consists of two halves 4c and 4d, of which the left-hand 4c is a conductive material and the right-hand one is an insulating material. In this case, a cutting operation can be achieved at the busbar connection. Depending on the position of the connecting wire end 8, the current flow may either be interrupted (Fig. 2c) if the end 8 does not touch the conductive part, or current may flow (Fig. 2d with the connecting part turned 180 ° around the rail compared to Fig. 2c) if the end 8 contacts leading part. Of course, the conductive and insulating parts may be of different lengths and may consist of several adjacent conductive and insulating parts, whereby the cutting movement is shorter. The length of the end of the connecting conductors can also be selected as desired, for example according to the length of the conductive and insulating parts.

Fig. 3a further shows the body of the connecting part, which consists of two halves, an upper half 7a and a lower half 7b. The connecting part connects the rail to the second rail 9 according to Fig. 3b so that the other ends 10a and 10b of the connecting conductors are bent to contact the conductors 2.5 of the rail 9 directly without the intermediate conductors. The gap between the conductors 4a and 4b is an insulator 4c, whereby together they form an intermediate conductor ring. In Fig. 4, on the other hand, the second rail also has an intermediate conductor ring 11, which consists of intermediate conductors and the insulation between them, just like in the first rail.

3-Q The connecting ends 12a and 12b of the conductors are bent into the outer circumference of the conductors, whereby the connecting part rotatably moves in the transverse plane of both rails.

Fig. 5 shows an intermediate ring consisting of intermediate conductors 13a and 13b and an insulator 13c, which is fixed to the rail by a screw 14 extending into its conductor.

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Figure 6 shows an intermediate ring consisting of two halves, the upper and lower halves. The upper half has an insulating body 15a, a front intermediate conductor 16a of about three-membered circles and a second intermediate conductor 17a of about four-quarters of a length. The lower half has corresponding parts 15b to 17b so that the halves can be printed in the so-called by snap-fitting into place on a circular rail.

Figures 7a and 7b show a T-joint according to the invention for connecting rails 18 and 19 with a circular cross-section. The connecting piece has an insulating body with a circular quarter-length curved connecting part 21a and ring parts 21b and 21c to protect the intermediate rings 22 and 23. Conductors 24 passing inside the body 15. Fig. 7c shows a cross-connection for three rails 18-20, Fig. 7d shows an angle connection for two rails 18 and 19 and still Fig. 7e shows a three-dimensional connection for three rails 18-20. 20 ta.

Figures 8a to 8e still show various rail cross-sections suitable for the system. Figure 8a shows a rail with a square 24 in the shape of a square. Each side of its 'Z6' has a straight groove 25 with a conductor 26 at the bottom. Figure 8b also has a square-shaped rail 27. Its opposite sides have grooves 28 with an angle so that the conductor 29 does not "appear" outwards at all, But is at a "dead" angle to the outside, and a rail of two different voltages with a circular body 30 is shown in Fig. 8c, and grooves 28 and conductors 29 for a higher voltage are shown, as in Fig. 8b, and lower voltage grooves 25 and conductors 26 as in Fig. 8a Fig. 8d shows a circular rail 25 with grooves according to Fig. 8a and current conductors therein Fig. 8e further shows a triangular rail 31, 8 89 0 4 4 with grooves according to Fig. 8a and The depth of the grooves varies depending on the application and voltage, as well as the cross-sectional area and shape of the conductors.

Figures 9a to 9i further show some embodiments of the invention in which electrical devices, lamps 32 and transformers 33 are connected to rails 18 to 20. Figures 9a and 9b show floor lamps with transformers, Figures 9c and 9d table lamps, Figures 9e and 9f wall lamps 10 and 9g - 9i ceiling lights. In particular, Fig. 9i shows a suspended three-dimensional rail consisting of several rails 18, in which the connections are made according to Fig. 7e.

It will be apparent to those skilled in the art that the various embodiments of the invention are not limited to the examples set forth above, but may vary within the scope of the claims set forth below.

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Claims (18)

A busbar system comprising one or more busbars, consisting of two or more longitudinal conductors of the rail (3a, 3b, 26.29) with intermediate insulating material (1,9,18-20,24,27,30,31), wherein the rails are interconnected or with an electrical device by means of one or more coupling parts of the system and where the conductors of the rails are located in rafters or recesses (2a, 2b, 25, 28) in the insulating material, characterized in that the electrical connection between the rails or the rail and the electrical apparatus or rail and the coupling part are carried out by means of special, substantially rotatably arranged intermediate conductors (4a, 4b) in such a way that the coupling part can be rotated around the rail or the coupling part can be adjusted in the desired position in relation to the rail in a perpendicular direction. against this. '; 20 Current rail system according to claim 1, characterized. by means that the intermediate conductors can be arranged in such a way that the current flows between the properly connected parts in all the positions of the coupling part. 25 Current rail system according to claim 1, characterized in that the intermediate conductors can be arranged in such a way that the current is blocked in one or more of the positions of the coupling part. 4. A busbar system according to claim 1, 2 or 3, characterized in that the coupling part can be rotated an entire turn or an unlimited number of turns around the rail or can be adjusted in any position as a hoist in a pane perpendicular to the rail. 8 9 Π 4 4 Current rail system according to any of claims 1 to 4, characterized in that the intermediate conductors connect the conductors of the current rail and the coupling part with each other and are located between the current rail and the coupling part. 5 6. A rail system according to claim 5, characterized in that the intermediate conductors are mounted in the longitudinal direction at the desired location of the rail and the intermediate conductors are rotatably arranged in relation to the coupling part. 10 Current rail system according to any of the preceding claims, characterized in that the intermediate conductors are located one after the other in the longitudinal direction of the rail. 8. A rails system according to claim 6 or 7, characterized in that the intermediate conductors are designed to form in themselves or in association with the insulating material around the rail a uniform intermediate conductor part or an intermediate conductor ring with a substantially round outer surface. 20 9. A rails system according to claim 8, characterized in that the intermediate conductor part or ring is inserted in place by being threaded at the end of the rail. Power rail system according to claim 8, characterized in that the intermediate conductor part or ring consists of two opposing halves (15a, 15b, 16a, 16b) or several discs which are assembled around the rail without being pressed on. 11. A busbar system according to claim 9 or 10, characterized in that the intermediate conductor part or ring is read to the rail, for example with reading screws (14). Current rail system according to any of the preceding claims, characterized in that the coupling part consists of two Current rail system according to any of the preceding claims, characterized in that the coupling part is provided with conductors (10a, 10b, 12a, 12b) for conducting the current from the intermediate conductors to the current rail or from the intermediate conductors to the electrical devices or from the intermediate conductors to the intermediate conductors in another current rail. Current rail system according to any of the preceding claims, characterized in that the coupling part is designed so that a perpendicular connection and a T-connection can be made between the two rails and by connecting two such coupling parts to the the same rail is a connection between three rails, where two rails are in the same piano. Power rail system according to claim 1, characterized in that the rail has a substantially round, oval, rectangular or triangular cross-section. SSS44 resistor pieces (7a, 7b) which are inserted in place from either side of the busbar with intermediate conductor, intermediate conductor part or intermediate conductor ring and are read in place for example with a screw connection. 5 16. A rail system according to claim 1, characterized in that the electrical apparatus is a transformer (33). Current rail system according to claim 1, characterized in that conductors (26,29) for at least two different voltages are arranged in the same rail section. 30 Power rail system according to claim 1, characterized in that the rail conductor consists of electrically conductive plastic or a metal, such as copper or aluminum and the insulating material of plastic or with fiber, such as fiberglass, reinforced plastic.