SU587514A1

SU587514A1 - Electromagnet overloading device

Info

Publication number: SU587514A1
Application number: SU681240223A
Authority: SU
Inventors: Виталий Ефремович Репин
Original assignee: Предприятие П/Я А-7374
Priority date: 1968-05-17
Filing date: 1968-05-17
Publication date: 1978-01-05

Description

(54) УСТРОЙСТВО ДЛЯ ФОРСИРОВКИ ЭЛЕКТРОАЛГНИТА(54) DEVICE FOR MOLDING ELECTRIC ALGNET

1one

Изобретение относитс к электроаппаратостроению .The invention relates to electrical equipment.

Известные устройства дл форсировки электромагнита имеют дополнительны элементы в цепи катушки (сопротивлени и блокконтакт) , а потери модности в добавочном сопротивлении составл ют 200-400% от мощности, потребл емой ка .тушкой l .The known devices for forcing an electromagnet have additional elements in the coil circuit (resistance and blocking contact), and the loss of modem in the additional resistance is 200-400% of the power consumed by the power l.

Известно также устройство дл форсировки электромагнита, со ержшаев катушку, последовательно с ней включенный токоограничивающий резистор, полупроводниковый элемент, например триод, включенный паргшлельно токоограничиваххаему резистору .It is also known a device for forcing an electromagnet with a coil, a current-limiting resistor connected in series with it, a semiconductor element, such as a triode, connected with a current-limiting resistor.

Однако в указанном устройстве триод управл етс от напр жени , снимаемого со вторичной обмотки трансформатора , первичной обмоткой которого вл етс катуижа .электромагнита.However, in this device, the triode is controlled from the voltage taken from the secondary winding of the transformer, the primary winding of which is the electrodes of the electromagnet.

Недостатком этого устройства вл етс наличие вторичной обмотки, так как требуютс дополнительные затраты меди. Кроме того, во вторичной обмотке могут возникнуть межвитковые короткие замыкани , в результате которых управл ювда с обмотка сгорает и устройство выходит из стро . Кроме того, A disadvantage of this device is the presence of a secondary winding, since additional copper costs are required. In addition, interturn short-circuits may occur in the secondary winding, as a result of which the control winding burns and the device goes out of service. Besides,

дл защиты триода при отключении цепи требуетс наличие диода.a diode is required to protect the triode when the circuit is disconnected.

Целью изобретени вл етс увеличение надежности в работе и упрощение конструкции.The aim of the invention is to increase reliability in operation and simplify the design.

Дл этого устройство содержит магиитоуправл емый контакт, подключенный к управл ющему электроду полупроводникового элемента и расположенный между корем электромагнита и его катушкой таким образом, что потоки выпучивани с сердечника на корь, проход через геркон, действует иа него только в момент срабатывани .For this, the device contains a magneto-controlled contact connected to the control electrode of the semiconductor element and located between the electromagnet core and its coil in such a way that the bulging flows from core to measles, the passage through the reed switch, act only at the moment of actuation.

На фиг. I предсчгавлена схема предлагаемого устройства; на фиг. 2 - расположение гёркона относительно элект ромагнита.FIG. I predschgavlen scheme of the proposed device; in fig. 2 - the location of the reed switch relative to the electromagnet.

Claims

The device consists of a coil 1 electromagnet, a current-limiting resistor 2 connected in series with it, a shunt semiconductor trio 3 that is controlled from the supply voltage by a reed switch 4 located between the core 5 and coil 1. When voltage is applied, the swell flows pass core to measles through a reed switch, close it. Through a closed reed switch 4, a negative bias is applied to the base of the semi-cavity triode 3. The latter opens and shunts the current-limiting resistor 2. In the tightened position, the core of the bulging flows through only one contact of the hermetic, the last is closed, the triode is locked, and the current-limiting resistor 2. Formula of the invention A device for forcing electromagite containing a coil, in series with 1 | it included current-limiting resistor, semiconductor alemeite, for example, a triode, connected in parallel current-limiting resistor, characterized by that. that, in order to increase reliability and simplify the design, the device contains a magnetically controlled contact connected to the control electrode 1 of the semiconductor element and located between the electromagnet core and its coil in such a way that the bulging flows from the core affect the passage through the reed switch. at the time of actuation. Sources of information taken into account in the examination: 1. Rodstein L; A. Low Voltage Electrical Apparatus, Energy, 1964, p. 293-294.

2. Author's certificate D146829, cl. H 01 H 47/06, 1961.

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