BG112130A - Polarized electromagnet - Google Patents

Abstract

The invention relates to a polarized electromagnet with vibratory drive applications or a single and two-stroke actuation of mechanical, hydraulic, pneumatic, electrical switchgear and apparatus for building automated systems. The polarized electromagnet is a structure comprising a magnet (1), fixed permanent magnets (3 and 4), a movable permanent magnet - anchor (2) and controllable electromagnetic screens (5 and 6). The position of the movable permanent magnet - anchor (2) relative to the fixed permanent magnets (3 and 4) is controlled by the electromagnetic screens (5 and 6). One advantage of the electromagnet is the possibility that, depending on the selected control mode, the anchor (2) can occupy one or two steady positions or perform a vibratory movement. 1 claim, 1 figure

Description

FIELD OF THE INVENTION

The invention relates to a polarized electromagnet with applications in the field of electrical engineering for vibration drive or drive with one and two fixed positions of mechanical, hydraulic, pneumatic, electrical switching devices and apparatus for building automated systems.

BACKGROUND OF THE INVENTION

Polarized electromagnets [1, 2, 3] are known, consisting of a magnetic conductor, windings and a permanent magnet - anchor. Depending on the positions occupied by the permanent magnet - anchor, polarized electromagnets can be vibrating, with one or two fixed positions of the permanent magnet - anchor in different designs.

A disadvantage of these polarized electromagnets is that the same design cannot be used for the different operating modes of the polarized electromagnets, since the position of the permanent armature magnet is determined by the selected design.

TECHNICAL ESSENCE

The objective of the invention is to provide a polarized electromagnet in which in the same construction the permanent magnet - anchor can be used for different modes of operation.

The problem is solved by a polarized electromagnet consisting of a magnetic conductor and a permanent magnet - anchor, in which axially at both ends of the magnetic conductor are placed a permanent permanent magnet, and between them is a permanent magnet - anchor, on both sides between it and fixed permanent magnets are located two controllable electromagnetic screens.

The advantage of the polarized electromagnet is that the permanent armature magnet can be used in different operating modes.

DESCRIPTION OF THE ATTACHED FIGURES

The invention is better illustrated by the appended fig. 1 is a diagram of a polarized electromagnet.

EXAMPLE OF IMPLEMENTATION

The polarized electromagnet consists of a magnetic conductor 1 and a permanent magnet - anchor 2, in which axially at both ends of the magnetic conductor 1 are permanently placed one permanent magnet 3 and 4, and between them is the permanent magnet - anchor 2, on both sides between it and the fixed permanent magnets 3 and 4 are located two controllable electromagnetic screens 5 and 6.

USE OF THE INVENTION

The action of the polarized electromagnet, for example as a vibrator, is as follows: in the initial position, with the electromagnetic screens 5 and 6 off, the armature 2 occupies a neutral position between the two fixed permanent magnets 3 and 4. When one electromagnetic screen (eg 5) is switched on, the armature 2 moves in the direction of the permanent magnet 3. At a certain moment the electromagnetic screen 5 turns off. As a result, a repulsive force begins to act on the armature 2 between the respective poles of the same name of the fixed magnet 3 and the movable magnet 2, which drives it in the opposite direction to the fixed permanent magnet 4. Its approach is provided by the included electromagnetic screen 6 and so on. n. the movement of the armature 2 continues as long as the control of the electromagnetic screens 5 and 6. When powering only one of them, the armature 2 is set in one of the two end positions (in the area of the included electromagnetic screen).

LITERATURE

[1] Linear Actuators, Moving Magnet Technologies, www.movingmagnet.com ·

[2] Prospectus by Electrical Machines & Drives Group ”, www.shef.ac.uk/eee/emd/index.htm.

[3] Prospectus of Isotech, Inc., www.isotechinc.com.

Claims (2)

PATENT CLAIM 1. The polarized electromagnet consists of a magnetic conductor (1) and a permanent magnet - anchor (2) CHARACTERIZED by the fact that axially at both ends of the magnetic conductor (1) are placed a permanent permanent magnet (3) and (4), and between them is the permanent magnet - anchor (2), as of its two sides between it and the fixed permanent magnets (3) and (4) are located two controllable electromagnetic screens (5) and (6).