Electromagnetic switching device

Abstract

The invention relates to an electromagnetic switchgear housing (6+7) in which an excitation coil (1), a yoke (2), an armature (3) and at least one contact (4) are arranged. The excitation coil (1), the yoke (2) and the armature (3) are inductively coupled to each other, so that the armature ( 3) Shifting into an actuated position, whereby the contact (4) can be actuated directly or indirectly. The yoke (2) and / or the armature (3) contain powdered magnetic material (9).

Description

technical field [0001] The invention relates to an electromagnetic switching device, in particular a contactor or circuit breaker, which has a housing, a field coil, a yoke, an armature and at least one contact, [0002] wherein the excitation coil, the yoke, the armature and at least one contact are arranged in the housing, [0003] wherein the field coil, the yoke and the armature are inductively coupled to each other, so that the armature can be shifted to an attractive position by applying an inrush current to the field coil, [0004] Wherein, the contact can be directly or indirectly controlled through the deflection of the armature to the suction position, [0005] Wherein, the magnetic yoke contains powdered magnetic material. Background technique [0006] Such electromagnetic switching devices are known, for example from document EP-A-0 505 194 . [0007] Magnetic switching devices, such as circuit breakers and contactors, have an electromagnetic drive consisting ...

AI Technical Summary

Problems solved by technology

Furthermore, in the prior art, the collision of the yoke and the armature would limit the lifetime of the magnetic system

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