RU10940U1 - SHORT-CLOSE DISPOSABLE ACTION - Google Patents

Abstract

1. Short-circuit short-circuiting, containing a heat-resistant, heat-conducting housing, two electrical leads and a source of thermal energy in the form of a winding of high resistance material with a lead for connection to an external current source, characterized in that one additional electrical lead of the short-circuit is connected to the anode of the element with one-side conductivity , the cathode of this element is connected to one terminal of the winding, and its other terminal is connected to the second terminal of the short circuit. 2. Short-circuiting device according to claim 1, characterized in that it is equipped with a second winding with leads, analogous to the first and electrically isolated from it, for connection to an external current source.

Description

The useful model belongs to the field of electrical engineering and can be used for one-time closure of electrical circuits in various operating conditions.

Lime single-action short-circuiting switches (KZOD), containing an insulating casing and two terminals with a gap between them, which, when heated, is bridged I.

These KZOD are applied, in particular, at the autonomous objects having storage batteries. Such batteries consist of several series-connected elements (accumulators) and each KZOD is connected in parallel to each of them. In the event of failure of any element, the corresponding short circuit is heated using a heat source (for example, a winding of an electric heater, to which a control signal from an external current source is automatically supplied by an analyzer or manually by the operator), the short circuit detects and shunts the failed battery, restoring the battery .

Closest to the technical nature of the claimed utility model is a one-time short-circuit breaker containing a heat-resistant, heat-conducting housing, an electrical output terminal and a thermal energy source in the form of a winding of high-resistance material with leads for connection to an external current source 2.

The disadvantages of such KZOD are the limited application area (they cannot be used in power supply systems that do not have an external control signal supply to the KZOD).

The proposed technical solution is aimed at expanding the scope of KZOD and increasing the reliability of its operation.

For this, one electrical terminal of the short-circuiting switch is connected to the anode of the element with one-sided conductivity (for example, a diode), the cathode of this element is connected to one winding of the winding, and its other terminal is connected to the second terminal of the short-circuiting device.

In FIG. The electrical circuit of the proposed KZOD is shown. The electrical terminals I and 2, shorted by a fusible jumper H, are connected to the terminals of the battery that is being monitored, with terminal I connected to the + terminal and terminal 2 to -. The ITE thermal energy source (an electric heater in the form of a winding made of high-resistance material) has conclusions 3 and 4 for connecting to an external current source. The cathode of the diode D is connected to terminal 2, the anode to terminal 4 .. and the terminals I and 3 are connected.

such that the diode has a maximum resistance and no current flows through the winding. When the accs of the modulator begins to fail, its internal resistance gradually increases, the output voltage drops and further degradation of the battery leads to the fact that it becomes an additional load on the day of the battery, the voltage at its terminals changes polarity, and then, as the degradation, the voltage value changes polarity increases again. When this voltage exceeds a certain threshold value, the diode resistance becomes minimal (it goes into the open state) and current flows through the winding, heating the KZOD and putting it in a closed state. Closed current leads I and 2 shunt the battery and current flow through the winding stops.

To short-circuit the KZOD with other types of battery failure, the control system or the operator passes constant current from the external source through the ITE winding in such a direction that the diode remains closed.

If it is necessary to completely galvanically decouple views 1.2 and 3, 4 (for example, when heating the KZOD winding from an external AC source), the KZOD can be equipped with an additional source of thermal energy in the form of a similar first and electrically isolated winding with the findings of the day connected to external power source.

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Literature:

1Olyanin Yu.V., Savchenko M.G. The decision to issue a certificate for the PM on the application No. 96120263/20 Short-circuit breaker single-use.

2Olyanin Yu.V., Kirillov V.A. Certificate 4856 for the application for PM No. 94080053/20 Short-circuit breaker of one-time action.

Claims (2)

1. Short-circuit short-circuiting, containing a heat-resistant, heat-conducting housing, two electrical leads and a source of thermal energy in the form of a winding of high resistance material with a lead for connection to an external current source, characterized in that one additional electrical lead of the short-circuit is connected to the anode of the element with one-side conductivity , the cathode of this element is connected to one terminal of the winding, and its other terminal is connected to the second terminal of the short circuit. 2. The short circuit according to claim 1, characterized in that it is equipped with a second winding with leads, analogous to the first and electrically isolated from it, for connection to an external current source.