Power switch device
OwnerTsung-Mou Yuinventor
Life of this patent
Estimating the term…
Abstract
A power switch device includes a switch box with a button pivotally connected thereto which is pivotally connected to an actuating member. An engaging member is movably connected to the actuating member and removably engaged with a block. A head connected to the actuating member movably compresses a conduct plate so that when the conduct plate contacts a terminal plate, the circuit is closed. A bimetal plate connected to the terminal plate has a pushing end contacting the engaging member so that when the current is overloaded, the pushing end is thermally deformed to push the engaging member away from the block and the engaging member drops due to gravity. The head is then lifted to release the conduct plate from the terminal plate to open the circuit.
Claims8
A power switch device comprising:
- a switch box having a button pivotally connected to a top of said switch box, a tongue extending centrally from a bottom of said button, a first rod and a block respectively extending from an inside of said switch box, a first terminal plate and a second terminal plate respectively engaged with said switch box and extending from said switch box, a first conduct point connected to said second terminal plate;
- an inverted U-shaped bimetal plate having two legs on one end of said bimetal plate and the other end of said bimetal plate being a pushing end, one of said two legs connected to said first terminal plate and the other leg connected to a first end of a conduct plate, a second conduct point connected to a second end of said conduct plate;
- an actuating member having a head on a first end of said actuating member and an engaging member movably mounted to a second end of said actuating member, a slot defined through said head so that said head movably mounted to said first rod received in said slot, said head pressing said second end of said conduct plate toward said second terminal plate, said tongue of said button pivotally connected to said actuating member, and
- a resilient plate having a first end thereof fixedly connected to said switch box and the other end of said resilient plate engaged with one end of said button.
Dependencies are inferred from the claim text.