MXPA98002271A - A method of fixing various functions of relay yuna provision of multiple relay configured in accordance with met - Google Patents

Abstract

To reduce the cost of providing a multiple relay arrangement, the arrangement has been constructed with a common fixed part (6) having permanent magnets (7), a common movable part (10) having permanent magnets (11), and fixed coils (9) having movable magnetically operable cores (8) connected with a respective contact means (12). By connecting the coils to a source of electrical current, the magnetically actuable cores can be caused to move in one or the other direction, depending on the direction of the current. When it is desired to establish an electrical contact through the coupling means (12) of the multiple relay arrangement, the current is passed through the coil (9 ') in one direction and through the remaining coils (9) in the opposite direction. In the state of contacting the arrangement, the core (8 ') will be repelled by the permanent magnet (7') in the fixed part (6) and attracted by the permanent magnet (11 ') in the movable part (10) during his movement The coupling means (12 ') connected to the core (8') can then be used to connect telecommunication conductors together, for example. The remaining cores (8) are attracted by the fixed permanent magnets (7) and do not move, even though the piece (10) will move away from the fixed piece (6) due to the repulsive force acting between the cores (8). ) and magnets (1

Description

"A METHOD OF ARRANGING VARIOUS RELAY FUNCTIONS AND A MULTIPLE RELAY PROVISION CONFIGURED IN CONFORMITY WITH THE METHOD" FIELD OF THE INVENTION The present invention relates to a method of arranging various relay functions and also to a multiple relay arrangement configured in accordance with the method. The so-called multiple relays are used in many fields. A common field of use is related to telecommunications equipment, where these relays are used in large numbers to connect and disconnect pairs of telephone lines for example.

DESCRIPTION OF THE BACKGROUND TECHNIQUE Electromechanical components are still used in the field of telecommunications, and also in other fields, often in the form of relays, selector switches and similar components. Relays often have multiple functions, for example, test access functions for line interfaces, in a digital telephone station. These access functions can be of the multiple type in which a plurality of relays having mutually the same function, are mounted on a circuit board. A large number of electromagnets are frequently used in the provision of these multiple functions, each of the electromagnets acting in a spring unit or the like. In constructions where several relays are collected in a unit, only the force of the electromagnet or the electromagnets where the effect is desired is used, only the magnets being used only one at a time. Functions often involve only a few devices that initiate the function of many of these devices and the large number of electromagnets included is unnecessarily large, since each electromagnet is strong enough on its own to perform a function. Since electromagnets with magnets and coils require space and each incur an individual cost, it is important that the electromagnets have the smallest possible size and that they are economical. Patent Publications Number SE 129 171, 343 718, 359 194 and CH 46807 disclose multiple relays for telecommunications applications that include permanent magnets that are frequently only effective in establishing or interrupting an electrical contact.

EXHIBITION OF THE INVENTION With the intention of decreasing the cost of providing a so-called multiple relay, a multiple relay arrangement including a common fixed part carrying several permanent magnets, a common moving part carrying several permanent magnets, is provided according to the invention. , and several fixed coils that are placed between the common fixed part and the common movable part and which have cores operable by the magnetic force and displaceable connected with the electrical connection elements. When each of the coils carries current, the cores that are capable of driving by the magnetic forces will either move to a new position or be held in their present position at that point in time, depending on the direction in which the current flows. current through the coil and the polarity of the permanent magnets. When it is desired to make electrical contact through an electrical contact means in the multiple relay arrangement, the coil is connected so that current will flow therethrough in an appropriate direction thereto, and the remaining coils are co-connected with each other. so that the current will flow in another direction, where all the nuclei will be magnetized. In the contact position, the core will be repelled by the permanent magnet in the fixed part and attracted by the permanent magnet in the movable part during its movement. Telecommunication conductors, for example, can then connect to each other together with the contact means connected to the movable cores. The remaining cores are attracted and retained by fixed permanent magnets, that is, they do not move, while the movable part connected to the permanent magnets will be driven and moved away from the fixed part by the repulsion forces acting between the now fixed cores and the permanent magnets of the movable part. All the magnetic forces have coercion to move the nucleus which is movable in this case with a repelling force and an attractive force for the electrical contact that performs the function and displacement of the moving part with the permanent magnets and with attractive forces for the switching functions excluded but with repellent forces to move the moving part with the permanent magnets and the core connected with these parts.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 shows relays placed in a row in accordance with a known technique.

Figure 2 illustrates a multiple relay arrangement according to the invention, without a contact means. Figure 3 illustrates a multiple relay arrangement operated in accordance with the invention, without a contact means. Figure 4 illustrates a multiple relay arrangement of the invention with a contact means. Figure 5 illustrates a multiple relay arrangement of the invention operated with an activated contact means.

DETAILED DESCRIPTION OF A PREFERRED MODALITY Figure 1 illustrates a known technique in which a plurality of relays l, 2..n are placed in a row in a multiple relay. Each coil 3 is intended to drive a coupling means 4 having its own spring group, the force required in this respect being represented by the force F. Each coil is capable of generating this force, and the force actually available is nxF , where n is the number of coils present, even though only the force F is actually required to open or close the switch.

In accordance with the present invention, several functions have been incorporated in a single unit. In this regard, a multiple relay device 5 includes a common fixed part 6 that can be provided with n numbers of permanent magnets 7, n numbers of movable cores 8, each of which is capable of moving relative to a fixed coil 9 connected, v.gr, the fixed part 6, and a common movable part 10, is provided with a number of permanent magnets 11; see Figure 2 in this regard (n = 5, 6, 7..10-40 ...). The permanent magnets provide a definable base position where no current is supplied to the circuit. This can be achieved without requiring the use of counter-springs. In certain applications, permanent magnets can be replaced with electromagnets. The fixed side 6 (Ml) having n number of permanent magnets 7 and the movable side 10 (M2) having n number of permanent images 11 can be biased in accordance with Figure 2, wherein all the air spaces between the cores and magnets will close when no power is supplied to the coils. When the current is supplied to the circuit containing the coils in such a way as to polarize the cores in accordance with Figure 3, all the cores will be attracted by Ml with the exception of nucleus n, which is now attracted by M2. The nucleus nw will repel Ml and all the other nuclei will repel M2, using in this way the force of all the nuclei. The force of attraction between the core nw and M2 is very strong due to the fact that in principle, the air space can be zero. Therefore, one or more of the cores can be caused to coerce with the respective contact elements with the help of all the other cores, reversing the polarity of one or more coils. When the power supply is interrupted, all circuits are helped to return the core / cores to their base positions. Because the nuclei in the non-energized circuits do not move, friction losses are not experienced there. Figure 4 illustrates a multiple relay of the invention in rest position and connected to the contact means 12 with open contacts 13 for the connection or disconnection of the conductors. Figure 5 shows the coil nw 9 'connected to an electrical circuit and the remaining coils with another circuit that is opposite to the first circuit, the core 9' having moved with it to the right in the Figure and having interrupted the supply of the current 13 'through the co-operation in the contact means 12'. The core 8 'has been moved by the repulsion force of the fixed permanent magnet 7' and the attraction force of the movable permanent magnet 11 '. The remaining cores 8 have not moved, since they are attracted by the fixed magnets and repulsed by the movable permanent magnets 11. The combined magnetic forces have moved the movable part 10 and the core 8 'and the contact device 12' connected thereto. The fixed magnets 7 can be mounted in a row on a fixed frame 6, towards which the coils 9 can be connected. The movable magnets 11 can be arranged or placed in a row in a frame 10, which is movable relative to the fixed frame. The cores 8 and the movable part 10 can be caused to move by directing the current towards the fixed coils 9. The nucleus or nuclei that moves will initiate the closing function of the circuit, while the nuclei that do not move will not perform a switching function, that is, the circuits will remain open but the repulsion force that acts between these nuclei and the magnets movable will help to move the contacts in the contact medium. A magnetic force nxf of all electromagnets with a magnetic force f is required to close the current in a commutator where f can be chosen to be much smaller than a corresponding force F for the electromagnetically controlled, individual contact devices.

Claims (5)

CLAIMS;

1. A method of placing various relay functions for use in a telecommunications equipment, for example to connect or disconnect pairs of telephone lines, characterized by placing a plurality of movable cores between a plurality of fixed magnets and a plurality of commonly placed movable magnets; supplying the electric current to the fixed coils in such a manner as to cause each core to either move away from the fixed magnet to a position displaced relative thereto, or remain in its initial position where the core connects with the medium contact to connect or disconnect conductors.

2. The multiple relay arrangement having a plurality of relay functions to be used, e.g., in a telecommunications equipment to connect or disconnect pairs of telephone lines, characterized in that a plurality of movable cores (8) are positioned to act between a plurality of commonly placed fixed magnets (7) and a plurality of commonly placed movable magnets (11); wherein each core (8) has a fixed coil (9) that when the current passes through it works to move the core (8) together with the movable magnet (11) away from a corresponding fixed magnet (7), or causes the core (8) to remain on the corresponding fixed magnet (7) and move a corresponding movable magnet (11), wherein a contact means (12) is connected to the core for the connection or disconnection of a conductor.

3. A multiple relay arrangement according to claim 2, characterized in that the fixed magnets (7) are placed in a row in a fixed frame (6) to which the coils (9) are also connected; in which the movable magnets (11) are placed in a row in a frame (10) that is movable relative to the fixed frame (6); and in which each nucleus is destined to act between a magnet (7) of the fixed frame (6), and a magnet (11) in the movable frame (10).

4. A multiple relay arrangement according to claim 2, characterized in that the magnets (7, 11) are permanent magnets.

5. A multiple relay arrangement according to claim 2, characterized in that the magnets (7, 11) are electromagnets. SUMMARY OF THE INVENTION To reduce the cost of providing a multiple relay arrangement, the arrangement has been constructed with a common fixed part (6) having permanent magnets (7), a common movable part (10) having permanent magnets (11), and coils fixed (9) having magnetically operable movable cores (8) connected with a respective contact means (12). By connecting the coils to a source of electrical current, the magnetically actuable cores can be caused to move in one or the other direction, depending on the direction of the current. When it is desired to establish an electrical contact through the coupling means (12) of the multiple relay arrangement, the current is passed through the coil (9 ') in one direction and through the remaining coils (9) in the opposite direction. In the state of contacting the layout, the core (8 ') will be repelled by the permanent magnet (71) in the fixed part (6) and attracted by the permanent magnet (11') in the movable part (10) during its movement. The coupling means (12 ') connected to the core (8') can then be used to connect telecommunication conductors together, for example. The remaining cores (8) are attracted by the fixed permanent magnets (7) and do not move, even though the piece (10) will move away from the fixed piece (6) due to the repulsive force acting between the cores ( 8) and the magnets (11).