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US 9,058,951 B2Granted
Electrical switch
AssigneeSiemens Aktiengesellschaft
InventorsZbynek Augusta, Filip Musil
Life of this patent
Estimating the term…
Abstract
An electrical switch, in particular an electrical circuit breaker, is disclosed including an overcurrent trip device which cuts off the flow of current through the switch in the event of an overcurrent situation. In at least one embodiment, a partial current of the current flowing through the electrical switch flows through a tripping arrangement of the overcurrent trip device and at least one further partial current of the current flowing through the electrical switch is conducted past the tripping arrangement.
Claims11
An electrical switch, comprising:
- an overcurrent trip device configured to cut off a flow of current through the switch in an overcurrent situation, the overcurrent trip device including a tripping arrangement configured such that a first partial current of the current flowing through the electrical switch flows through the tripping arrangement, and such that at least one second partial current of the current flowing through the electrical switch is conductable past the tripping arrangement, the tripping arrangement including,
- a yoke part through which the first partial current flows, and
- an armature part configured to interact with the yoke part, the armature part being movable or swivelable in response to a magnetic flux caused by only the first partial current flowing through the yoke part in the event of an overcurrent situation such that the first partial current alone is sufficient to move or swivel the armature part,
- wherein the overcurrent trip device includes a sheet metal part, the sheet metal part including a first section that has at least one opening into which the yoke part is insertable, and
- wherein the first partial current flows through the yoke part in a same direction as the at least one second partial current that flows through the first section.
2 more elements
Dependencies are inferred from the claim text.