Polarized power relay
AssigneeSiemens Aktiengesellschaft
InventorHelmut Schedele
Life of this patent
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Abstract
A relay has a polarized magnetic system (2) with a three-pole magnet (17) arranged above a coil (14) and rocking armature (18) which actuates a contact spring (30) arranged beneath the coil by means of a frontally arranged slide (23). The contact spring (30) is inserted from one side into the base body, by means of an elongated spring carrier (29), whereas a counter contact element (33) is inserted therein from the opposite side. This relay allows with a compact design long insulating sections between the magnetic system and the set of contacts, as well as a short circuit-resistant design of the set of contacts.
Claims13
A polarized electromagnetic relay comprising:
- a coil having a coil axis;
- an elongated permanent magnet which is arranged above the coil and parallel to the coil axis and which has like end poles at each of two ends thereof and a center pole opposite thereto in a center thereof,
- a core which is arranged inside the coil and which is coupled at both ends thereof to the two ends of the permanent magnet by means of yoke legs,
- an elongated rocking armature which is mounted above the center pole of the permanent magnet and which forms a working air gap with each of the two yoke legs
- the armature being mounted by means of a bearing spring which is attached directly to a center section thereof and which can be latched on both sides to the permanent magnet,
- a contact assembly having at least one contact spring arranged approximately parallel to the coil axis and having at least one fixed contact element arranged underneath the coil, and
- a slide arranged in front of one end face of the coil which is movable perpendicular to the coil axis and which is made of insulating material and which is coupled to a movable end of the armature and to a movable end of the contact spring.
Dependencies are inferred from the claim text.