| 简介 |
FIELD : electricity.
SUBSTANCE : in a polarised magnetically operated sealed switch comprising contacts from magnetic soft material with external leads, and also a permanent magnet, one of poles of which adjoins the contact lead, the permanent magnet is formed by ring sectors rigidly connected into a radially magnetised magnet, and such sectors are made from a highly coercive magnetic material on the basis of the rare earth elements, and is coaxially installed at least on one of leads of the magnetically operated sealed switch. At the same time the polarised magnetically operated sealed switch may contain an additional lead of that contact, on the cut lead of which the magnet is placed. The middle part of the additional lead is arranged along the magnetically operated sealed switch, its one bent end is located between the magnetically operated sealed switch and the magnet and is electrically connected with the main lead, the length of which corresponds to the height of the magnet placed on it, and its other end is brought out at the magnetically operated sealed switch side, which is opposite relative to the magnet.
EFFECT : reduced dimensions and weight, simplified design an technology of manufacturing, facilitated selection of a magnet with parameters providing for development of a magnetomotive force required for actuation of a magnetically operated sealed switch and a switchboard in combination with their functional purpose, depending on type and purpose of a device, in which they are applied.
10 cl, 8 dwg |
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