SU1356033A1 - Magnet-controlled-contact - Google Patents

Abstract

The invention relates to electrical engineering, in particular to devices on magnetically controlled contacts. The purpose of the invention is to reduce chatter and expand switching capabilities. During the switching process, the horizontal part 8 of the movable contact core (CS) is attracted to the fixed CSs 2 and 3, as a result of which the twisted portion 7 of the vertical part 6 of the movable CS is unwound. Section 9 of the vertical part 6 smoothly closes with additional fixed CS 4 and 5. 1 sludge. So ate about: About SLE So

Description

The invention relates to electrical engineering, in particular, to devices on magnetically controlled sealed contacts.

The aim of the invention is to reduce chatter and increase switching capacity.

The drawing shows a magnetically controlled contact, a longitudinal section.

The magnetic contact contains a sealed balloon 1, main fixed contact cores 2 and 3, additional fixed contact cores 4 and 5, a movable contact core made of a T-shape, the vertical part 6 of which is rigidly fixed in the wall of the sealed balloon and has a twisted section 7 , the ends of the horizontal part 8 form closing contact pairs with the main fixed contact cores 2 and 3. The vertical part 6 is provided with a section 9, which is its continuation and with additional contact cores 4 and 5 closing contact pairs.

The device works as follows.

The magnetically controlled contact is placed in the excitation coil. When a control signal is applied, the contact cores 9, 2 and 3 are magnetized and the fixed cores 2 and 3 begin to attract the horizontal part 8 of the movable contact core 4. Torques are created and the ends of the horizontal part 6 of the balanced movable contact core move towards the fixed 2 and 3 overcoming the rigidity of the vertical part 6. The twisted section 7 is unwound, and the length of the vertical part 6 is increased. At that moment, when the horizontal part 8 of the movable contact core collides with the fixed cores 2 and 3, the section 9 connects with the contacting surfaces of the additional fixed contact cores 4 and 5, and bridges them. The process of closing the movable contact core with additional fixed contact cores occurs smoothly and without chatter.

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since the rigidity of the vertical part 6 in the axial direction is large and makes it impossible to bounce. The contacting surfaces do not burn, so you can switch large currents.

When the control signal is removed, the movable contact core as a result of the action of the twisted portion 7 opens with the fixed contact cores and returns to its original position.

In the case when two excitation coils are used to control the magnetically controlled contact, either the right coil can be separately controlled, the right part of the moving contact core and the fixed contact core 3 can be controlled by magnetizing the left part of the moving contact core and the fixed contact core 2. Despite the increased control power of one coil, all contact pairs of the magnetically controlled contact are closed. This explains the increased reliability of the device in the case when the power supply system of one control coil is malfunctioning.

Claims (1)

Invention Formula Magnetically controlled contact containing a sealed cylinder, fixed contact cores installed in opposite ends of a sealed container, a movable contact core made of a T-shape, the vertical part of which is rigidly installed in the wall of the sealed cylinder, and the ends of the horizontal part form closing contact with fixed contact cores pair, characterized in that, in order to reduce chatter and increase switching capacity, it is equipped with two additional cores fixed contact mounted in the ends of the sealed proti- vopolozhnps parallel main cylinder-nepod Vision cores pin M, the vertical portion of the movable core pin is rigidly mounted in a wall of the sealed container. 313560334 It has a twisted section and is equipped with additional moving contact-section, which is a continuation of the closing contact-vertical part of the core, which forms a pair.