Thermal fuse employing thermosensitive pellet
AssigneeNEC SCHOTT Components Corporation
InventorTokihiro Yoshikawa
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Abstract
To faster respond to switch at an operating temperature a thermal fuse employing a thermosensitive pellet includes a metallic casing, a first lead member having a first electrode formed at an end thereof, a second lead member having a second electrode formed at an internal wall surface of the casing, a switching function member including a spring member pressing the thermosensitive pellet and a movable conductor. At the operating temperature as the thermosensitive pellet softens and melts, the thermal fuse switches an electrical circuit between the first and second electrodes, and it is characterized in that the thermosensitive pellet undergoes a process to facilitate activation to allow the thermal fuse to faster respond to switch at the operating temperature.
Claims9
A thermal fuse employing a thermosensitive pellet, comprising a metallic casing accommodating a thermosensitive pellet of thermoplastic resin, a first lead member firmly attached to one end of said casing and having a first electrode formed at an end thereof, a second lead member fixed at the other end of said casing and having a second electrode formed at an internal wall surface of said casing, a switching function member including a spring member disposed internal to said casing and pressing said thermosensitive pellet and a movable conductor disposed internal to said casing, the thermal fuse switching an electrical circuit between softens and melts, characterized in, that said thermosensitive pellet undergoes a process to facilitate activation to allow the thermal fuse to faster respond to switch at said operating temperature.
Dependencies are inferred from the claim text.