Electricity: electrothermally or thermally actuated switches – Thermally actuated switches – With bimetallic element
Patent
1993-07-28
1994-08-09
Donovan, Lincoln
Electricity: electrothermally or thermally actuated switches
Thermally actuated switches
With bimetallic element
337365, H01H 3744
Patent
active
053370368
ABSTRACT:
A thermal protector for protecting an electrical accessory in a current carrying circuit is actuated when abnormal changes occur for any reason in the ambient temperature about the accessory has, a conductive first terminal defining a stationary contact and is connected to one side of the current carrying circuit, an insulator coacts with the first terminal for isolating the first terminal except for the stationary contact thereon from the other conductive elements of the thermal protector, a conductive actuating assembly having a leaf spring formed thereon and a contact fixedly connected and movable with the leaf spring is aligned for engagement and disengagement with said stationary contact, a second conductive terminal member is connected to the opposite side of said current carrying circuit and has a connector assembly for joining the first conductive terminal, the conductive actuating assembly and the second conductive terminal member to each other, a bimetallic element freely positioned in the thermal protector for operative engagement with the leaf spring actuates the leaf spring responsive to the abnormal changes in the said ambient temperature about the accessory to cause the contact thereon to engage and disengage the stationary contact for opening and closing the current carrying circuit for the electrical accessory to be protected.
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Texas Instruments Brochure 34-8099A (Jul. 1988) 7AM Thermal Protectors.
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