DE2602630A1 - COUPLING ARRANGEMENT WITH BISTABLE RELAYS, IN PARTICULAR FOR REMOTE COMMUNICATION SYSTEMS - Google Patents

Description

Patent attorney
Dipl.-Phys. Leo Thul
Stuttgart

E.M.A.Jammes-J.L.M.H.Bordier 3-1

INTERNATIONAL STANDARD ELECTRIC CORPORATION, NEW YORK

Coupling arrangement with bistable relays, especially for Pern message switching systems

The present invention relates to a coupling arrangement, the coupling points of which are formed from relays and their Contact pairs can connect at least single-core feeder and collector lines to one another, each relay to achieve a first and a second stable switching position with at least one magnet and adjustment units excitable windings is provided, especially for Pernmeldevermittlungsanlagen.

Such a coupling arrangement is known from French patent 1,316,290. The familiar arrangement contains relays with two windings around a glass bulb in which two contact tongues are enclosed. Disadvantageous With this coupling arrangement, an additional work step must be carried out before each new setting of the relay.

January 21, 1976
Sat / Mr

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must be carried out: the relays involved in the previous connection must be dropped.

From DT-PS 1 295 667 is a coupling arrangement with two Pairs of control windings known per relay, which can do without the additional work step mentioned above. This is achieved by having the relay response excitation required for readjustment at the same time as the ejection excitation is used for relays involved in the previous connection. However, the disadvantage is greater effort on the relays, which require additional windings.

The invention is based on the object of specifying a coupling arrangement of the type mentioned, which without the The above additional work step and the Relay with only two windings required.

This is achieved according to the invention in that each of the setting units has at least two successive ones Current pulses with successively alternating polarity generated, the polarity of the pulses from the one setting unit in at least one period of time opposite to the polarity of the pulses from the other setting unit is and is the same in at least one other time period, and that the windings are arranged such that the Magnetic fields generated by the current impulses in one period of time relay into the first stable Bring the switching position and in the other time segments into the second stable switching position.

This has the advantage that the coupling arrangement is particularly easy to set up and works reliably,

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Further developments of the invention can be found in the subclaims.

The invention is explained in more detail using the exemplary embodiment shown in the accompanying drawings. Show it:

Fig.l a coupling arrangement according to the invention,

2 shows a relay from the coupling arrangement according to Pig. 1,

Pig.3a-3c Course of impulses from the setting units,

Fig. 4 opening and closing characteristics of the used Relay,

5a-5c a second example of suitable pulse curves for controlling the coupling arrangement,

-Fig.6a-6c a third example of suitable pulse curves for controlling the coupling arrangement,

Pig.7a-7c a fourth example of suitable pulse curves to control the coupling arrangement and

8 shows another type of relay for the coupling arrangement.

To simplify the description, the in Fig.l shown coupling arrangement only seven single-core transmission lines. Three of these lines with the reference symbols xl, x2 and x3 are arranged parallel to one another,

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whereby they form a first wire plane, while the lines yl, y2, y3 and y4, which are also arranged parallel to one another, are perpendicular to the lines xl, x2 and x3 and form a second plane. Between these two levels are relays Rl ₃ I, Rl, 2, Rl, 3, R2, l, R2,2, R2,3 _S R3,1, H3,2, R3,3, R4,1, r4,2, and R4,3 arranged in a two-coordinate pattern to connect a line of one level to a line of the other level. For example, relay R3,2 can connect line y3 to line x2.

2 shows an example of a suitable relay with a glass bulb which ^{includes two tongues 2 and 2 1} made of magnetizable material. Two coils Bx and By with the same winding are wound around the glass bulb, one on top of the other. One winding has connections bx and b'x and the other winding has connections by and b ^f y. The various relays are energized and released by setting units 3 and 4. The setting units 3 and 4 contain pulse generators 5 and 6, which are connected to the relays via voltage-controlled switches. The windings BX of the relays Rl, 1, R2, l, R3, l and R * », l are connected in series and connected to the generator 5 via the voltage-controlled switch ICl. The windings BX of the relays Rl, 2, R2,2, R3,2 and R4,2 are connected to the same generator via switch IC2, while the windings of the relays Rl, 3, R2,3, R3> 3 and R4,3 with Switch IC3 are connected. The windings By of relays R2, l, R2,2 and R2,3 are connected to switch IR2, while the windings By of relays R3, 1, R3,2 and R3,3 are connected to switch IR3 and the windings By of relays R4, l, R4 _a 2 and R4,3 are connected to switch IR ¹ I.

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The setting units 3 and 4 contain the generators 5 and 6, the at least two consecutive degaussing pulses generate, the curves of which are shown by way of example in FIGS. 3a and 3b. the demagnetize the impulse currents fed to the relay the tongues, which puts the relays in their first stable state. The excitation windings shown in Figure 2 Bx and By cause the current pulses generated by the generators 5 and 6 to have magnetic fields build up that overlap, i.e. add up. Fig.3c shows the superposition of those shown in Figures 3a and 3b Impulses.

The superposition causes a pulse amplitude to arise which puts the relay in a second stable state.

The coupling arrangement according to the invention is detailed below described.

It should be remembered that to close the relay shown in Figure 2, a magnetic field strength is required that is sufficient to attract. For this purpose, the material from which the tongues 2 and 2 ¹ are made is magnetized by a current pulse through the windings BX or BY. This current pulse should be able to generate a field H around the tongues that _{exceeds the strength of I f} in Figure 4.

To open the relay, the tongues must be demagnetized will. For this purpose, a current pulse is generated, the direction of which is opposite to the closing current, and the one Field strength H builds up, which is less than -Io but greater than -I-p. Otherwise the relay would close again.

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In practice there are no relays whose values I _f and I exactly match, since these values vary within a tolerance range; they lie within the interval I _f or I, where the first interval through 1 ^ ₁ and I "p and the second through -I ₀₁ and -!"? is determined. The same intervals can be found symmetrically to the O-line on the other side.

In the example given, the relays are closed by a positive pulse.

To close all relays, the excitation field strength I must be greater than I _n , ie

P Ic

i _p > i _f2 (D

The excitation _{field strength I p} is derived from the superposition of I ^ and ΙΛ. applied by the windings Bx and BY, which are excited by the current pulses from the generators 4 and 5. Assuming that the field strengths I and I ^ 'are equal, the following applies:

l _p = I <+> ♦ iW. 2I < ⁺ > (2)

The current pulses from the generators 5 and 6 should throw off all relays where no superposition occurs. That Shedding is achieved by negative values I and I, which are also assumed to be equal to each other. The values I ^ ~ 'and Iy should be in the following range:

-I _fl <4 -) <I _o2 (3)

If I ^ ~ ^ -I ", then the pulse amplitude is insufficient to demagnetize the tongues and the relay throws

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not off. If I Zl ^ ₁ , then the amplitude is too large and causes magnetization in the other direction, so that the relay picks up.

It is assumed that those shown in Fig.l. Lines y2 and x3 are to be connected to one another. The central unit 7 closes the switches IR2 and IC3, while the others remain open. The relays R2, l and R2,2 are with a current, the course of which is shown in Fig.3b is excited. These relays are caused to be devalued regardless of their starting position. The same thing happens with the relays Rl, 3, R3,3 and R4,3. Only in the relay R2,3 these fields are superimposed; it closes and lines y2 and x3 are connected to one another.

There are other pulse waveforms for accomplishing the above Functions.

With the pulse waveforms shown in FIGS. 5a, 5b and 5c it is possible to have the relays open before the relay in which the overlay closes he follows.

In FIGS. 6a, 6b and 6c, the impulses, starting from a value that produce the excitations I ^ and I,

X Jx.

calls, values that decrease over the course of time, resulting in a more complete demagnetization.

Due to the different times that are required for the build-up of the magnetic fields, the fields can change overlap only imprecisely, with these fields then appearing in the wrong direction, so that the opening of the relay is incorrect

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he follows. For this reason, the pulses that generate fields I and I are made wider than that

y (_) (_) Pulses that generate fields I and I (see Fig. 7a and 7b). The superposition of these fields creates an overall field, the course of which is shown in FIG. 7c. One sees, that additional pulses are generated, but which are of the same polarity and of which at least one an excitation field I "is generated. The mode of operation is thus not changed and there is a time shift of the in Fig.7a The pulses shown in and 7b change that shown in FIG. 7c Impulse hardly in its breadth.

It should be noted that the relay shown in Fig.2 with a winding body can be equipped, which carries the windings on the outside and which is pushed over the glass tube 1 will. Likewise, it is also possible to produce the two windings in one winding process by simultaneously two wires are wound.

It is also possible to use a relay of the type shown in Fig.8 Type to use.

In this case, a non-remanent material is used for the contact tongues 10 and 11, which are enclosed in a glass tube. The windings BX ^f and BY ¹ are wound around a bar magnet 30, the north-south pole direction of which is parallel to the tongues 10 and 11.

It should be noted that the response characteristics shown in FIG the relay can be changed as a function of the pulse width, allowing greater leeway is achieved in the choice of both positive and negative amplitudes.

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Claims (7)

2602B30 - 9 E.M.A. Jammes et al 3-1 Claims > (JLY coupling arrangement, the coupling points of the relay are formed and their contact pairs at least single-core Zubringerund trunk lines can connect with each other, wherein each relay in order to obtain a first and a second stable switching position with at least one magnet and excitable by setting units windings is provided, in particular for Fernmeldevermittüungsanlagen, characterized characterized in that each of the setting units (3, 4) generates at least two successive current pulses (I, 1) with successively changing polarity, the polarity of the pulses (I) from the one setting unit (3) in at least one time segment relative to the polarity of the pulses ( I) from the other setting unit (4) is opposite and is the same in at least one other time segment, and that the windings (BX, BY) are arranged in such a way that the magnetic fields generated by the current pulses in the one time segments relay (R) in the first stable Schaltla ge and in the other periods of time in the second stable switching position. 2. Coupling arrangement according to claim 1, characterized in that each relay (R) carries two windings (BX, BY), of which all the first Wick lungs (Bx) of the relays (Rl, 1 to R4, l) are hinder connected in series and all of which second windings (by) of the connected to the same trunk line (zByl) relay (RL are prevents cascaded ₃ I to R13) and in that one of the adjusting units (3,4) pulses (I _x) for the first windings supplies, while the other of the setting _{units supplies pulses (I y} ) for the second windings. 609832/0632 - 10 E.M.A. Jammes et al 3-1 3. Coupling arrangement according to claim 1, characterized in that the one setting unit (e.g. 4) generates a pulse (I) which is longer than that generated by the other setting unit (3) and that during the occurrence of the longer pulse, the response excitation (1 ™ ) is achieved. 4. Coupling arrangement according to claim 1, characterized in that the amplitude of the current pulses (1,1) from each setting unit (3 ₃ 4) is not greater than half the required for response excitation (Ip). 5. Coupling arrangement according to claim H _3, characterized in that the amplitudes are falling. 6. Coupling arrangement according to claim 1, characterized in that the contact pairs (2 ₃ 2 ^f ) of the relay (R) are made of magnetizable material and are enclosed in glass bulbs (1) around which the windings (BX, BY) are wound, wherein the contact pairs are held in the first switching position by spring force and when the response excitation (Ip) is reached, which turns the contact pairs into magnets, they adopt the second switching position, in which they remain after the response excitation (Ip) has subsided until a demagnetization pulse (Ιλ) comes. 7. Coupling arrangement according to claim 1, characterized in that the contact pairs (10, 11) of the relay (R) are made of non-retentive material and are enclosed in glass bulbs (20) and that a permanent magnet (3o) is provided which supports the windings (Bx , By) and which together with the contact pairs forms a magnetic circuit. Blank page