Switch assembly
AssigneeABB AB
InventorsMarko Takala, Jari Elomaa, Matti Kähkipuro, Veikko Puumala, Lauri Kettunen, Tommi Forsberg, Pertti Arjanne, Mikko Helminen, Mikko Vehkaperä
Life of this patent
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Abstract
A switch assembly (1) for switching electric circuits comprises a contributory switch (3), a main switch (2), and a flexible element (4). The contributory switch (3) and the main switch (2) are connected electrically in series, the contributory switch (3) and the main switch (4) each comprise at least one movable contact and the flexible element is connected to one movable contact of the contributory switch, a first contact (5a), and one movable contact of the main switch, a second contact (6a).
Claims16
A switch assembly for switching an electric circuit, wherein the switch assembly, wherein the switch assembly comprises:
- a contributory switch;
- a main switch;
- and
- a flexible element, wherein the contributory switch and the main switch are connected electrically in series, the contributory switch and the main switch each comprise at least one movable contact and the flexible element is connected to one movable contact of the contributory switch, a first contact, and one movable contact of the main switch, a second contact, and wherein opening of the contributory switch is arranged to compress the flexible element and the decompression of the flexible element is arranged to cause opening of the main switch.
A method of switching an electric circuit by a switch assembly, wherein the switch assembly comprises
- a contributory switch and a main switch, which are connected electrically in series, and where movable contacts of each switch are mechanically connected to each other by a flexible element, and by the method comprising:
- opening the contributory switch such that the flexible element becomes compressed, whereby the decompression of the flexible element is arranged to cause opening of the main switch.
Dependencies are inferred from the claim text.