| 摘要 |
In one embodiment of the present invention, a temperature sensitive tip switch comprises a first conductive arm, a second conductive arm disposed in a parallel, spaced apart relation beneath the first conductive arm, a third conductive arm disposed in a parallel relation beneath the second conductive arm, and a temperature sensitive actuator blade disposed in a parallel, spaced apart relation beneath the third conductive arm. The second conductive arm includes a cut-out portion which is capable of downward flexion and the third conductive arm includes a cut-out portion which is capable of downward flexion and which is engaged with the cut-out portion in the second conductive arm. A first pair of normally closed, electrical contacts are mounted on the actuator blade and the third conductive arm. A second pair of normally closed, electrical contacts are mounted on the second conductive arm and the first conductive arm. In use, an adjustable thermostat shaft assembly is disposed to contact and selectively urge the cut-out portion in the second conductive arm in a downward direction so as to open the first pair of electrical contacts in a fast-action manner. In addition, an insulated button is mounted on the actuator blade and is disposed to contact and selectively urge the third conductive arm upwards upon the application of heat so as to open the first pair of electrical contacts in a fast-action manner. Furthermore, a gravity sensitive tip-over device is mounted on the actuator blade and is disposed to selectively urge the first conductive arm away from the second conductive arm upon a change in the orientation of the switch so as to open the second pair of electrical contacts.
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