SU63864A1 - Electromagnetic double-winding relay - Google Patents

Description

One of the main parts of the telecontroller with time signals (i.e., with signals in which the pulse duration is the different duration of the pulses and the intervals between them) are pulse generators with a lengthening of the pulses and intervals. Usually, the lengthening of pulses and intervals in these generators is achieved by switching on at certain times the delayed relays blocking or breaking with their contacts for an additional time equal to the lengthening of the pulse or interval, the circuit of one of the relays pulsating, giving pulses.

The use of these relays complicates the circuit and also slows down the action of the pulse generator.

The proposed double-winding relay allows the pulses to be extended and the intervals between them without an additional relay.

It belongs to the type of relay operating with deceleration, implemented using a capacitor connected to the relay. From the known relays of this type, the proposed one is different in that the capacitor is connected in series with the auxiliary winding connected together with the capacitor to the network supplying the main winding, directly, in the case of counter winding of these windings, or through a cross looper in the case of a consistent winding connection. In addition, the relay can be provided with an additional winding, which is connected to the auxiliary winding and to the capacitor and wound towards the main and auxiliary windings.

The foregoing summary is illustrated in FIG. 1–3 of which the switching circuits of three variants of the proposed relay are shown, and in FIG. 4 and 5 are diagrams of pulse generators in which the proposed relay is applied.

Slowdown of the relay 1 for activation is carried out according to the scheme of FIG. 1. Here, when relay 1 is turned on, simultaneously with its main winding a, an auxiliary winding b is turned on, in the circuit of which capacitor C is located. Coils winding. b are directed opposite to the turns of the main winding a and therefore, as long as a current flows through it (for the period of the capacitor charge), it

will counteract the increase of the magnetic flux in the core of the relay 1 and thereby slow down its activation.

The shutdown slowdown can be achieved in two ways:

1. When the relay winding is turned on (Fig. 2), an additional winding b is turned on, the turns of which are directed equally to the turns of the main winding and in the circuit of which a capacitor is turned on. During the charge time of the capacitor, this winding will maintain the magnetic flux, preventing its decay, and thereby slow down the switching off of the relay.

2. The relay is turned off (Fig. 3) by demagnetizing it, by turning on an additional winding 8, the turns of which are directed opposite to the turns of the main winding a relay. Simultaneously with the winding, winding b is turned on, in the circuit of which the capacitor is turned on and the turns of which are directed equally to the turns of the main winding a of the relay. The current flowing in the winding b during the charging time of the capacitor will counteract the demagnetizing action of the winding in and this will slow down the relay.

In a pulse generator as shown in FIG. 4, the deceleration is obtained using a relay connected in accordance with the scheme of FIG. 2. The generator is started by acting on the start button KP. The contacts of this button closes the circuit of the first position of the contact range Pa Pa of the step-by-step switching device (for example, a telephone finder can be used as such a device in the pulse generator) and a working winding of the relay 1. Relay 1 is activated. By contact 1a it switches on the circuit of the electromagnet of the EM switching device, and by contact 16 sends a pulse to the communication line. The EM electromagnet with its contacts breaks the circuit of relay 1. Relay 1 releases, breaking the electromagnet day and stopping the nodal of the pulse to the communication line.

Switching brushes go to the next contact. The brush in the contact line do Pa, through its shorted contacts, connects to the current source in addition to the start button KP, whereby the relay 1 is triggered again, again closing the electromagnet circuit and the communication line. The electromagnet contacts again interrupt the circuit of relay 1, etc. The relay 1 and the switch electromagnet form a pulsar which moves the brushes of the switch from one contact to another, sending simultaneously pulses to the communication line until the switch brushes reach zero position If the KP start button is open at this moment, the movement of the switch will stop, as the winding circuit and relay 1 will be broken. To extend the pulses and intervals, the contact rows of PB and Pv of the switching device and the selectable buttons Ki - KyPu are connected when one of the buttons Ki - Ks is turned on when the switch brushes reach the corresponding contact and when the electromagnet EM and the relay 1 are located in the released state, and their contacts in the position shown in FIG. 4, through the contact switch row PB and the capacitor Ci, an additional winding circuit b of relay 1 is formed.

The coils of the winding b then turn on opposite to the turns of the winding a and, therefore, the relay 1 described above will get a slowdown to turn on. Due to this, its contacts 1b turn on for a longer period of time and an extended interval is obtained in the communication line. When the relay 1 trips, it contacts the capacitor Ci with its contacts 1 d and thus discharges it, preparing to switch on the next contacts of the switching device.

When you turn on one of the buttons KB - Kyu at the moment when the brushes

the switching device will reach the corresponding contact and when the EM electromagnet to the relay 1 is in the turned-on state, through the contact series the PV switch switches on the winding circuit b and the capacitor € 2. In this case, the turns of the winding b are turned on in the same way as the turns of the winding a, and the relay as described above gets a slowdown to turn off. Due to this, its contacts are turned on for a longer time and an increased impulse is obtained in the line. When the relay 1 is released, its contacts 1d short-circuit the capacitor Ca and, discharging it, prepare it for switching on the following contacts of the switch.

In a pulse generator as shown in FIG. 5, the deceleration is received by a relay connected in accordance with the scheme of FIG. 3. The action of this circuit occurs in the same way as the previous one, with the only difference that when relay 1 is turned on from winding a, it locks in the on state, and additional winding b serves as to get a deceleration to turn on when it is turned on in series with capacitor C and off when the winding b is turned on without a capacitor.

Subject invention

Claims (2)

1. An electromagnetic two-winding relay of direct current, working with deceleration, carried out with the help of a capacitor, characterized in that, in order to increase the zoom, capacitor C is connected in series with the auxiliary winding b, wound towards or on the main winding a and connected together with capacitor C to the network supplying the winding a either directly (in the case of a counter-winding connection) or via switch K. (in the case of a willing connection of the windings). 2. The form of the relay according to claim 1, characterized by the use of an additional winding, which is parallel to winding 6 and wound towards the latter and the winding a. FIG. 2 FIG. 3 . cJ L il