Electricity: electrothermally or thermally actuated switches – Electrothermally actuated switches – Fusible element actuated
Patent
1977-08-01
1979-08-14
Harris, George
Electricity: electrothermally or thermally actuated switches
Electrothermally actuated switches
Fusible element actuated
337252, 339 19, 339258R, 29623, H01H 8502
Patent
active
041647254
ABSTRACT:
A three-piece solderless plug-in electrically conducting component is provided for mounting in an electrical connector. An elongate conducting element is transversely disposed across two spaced-apart generally parallel blades and is secured at each of its ends to a spring clip near the end of each blade. In the preferred embodiment of the present invention, the component functions as a fuse wherein the elongate conducting element is a generally cylindrical fuse wire and wherein a solid unitary body of electrically insulating material encapsulates the fuse wire and spring clip of each of the blades with the external surfaces of the fuse wire and blade spring clip portions being in intimate contact with the encapsulating material. The spring clip has a pair of spaced-apart rear bearing members and a flexibly hinged front bearing tongue between the rear bearing members. Each of the rear bearing members has a cradle with a substantially V-shaped cross section for receiving a portion of the fuse wire in self-aligning, vibration resistant, clamping engagement and for accommodating fuse wires of varying diameter.
The fuse of the present invention is preferably formed by providing generally rectangular blades in spaced-apart parallel relationship, bending the front bearing tongue away from the rear bearing members on each blade to provide an opening, inserting the fuse wire through the opening into the cradles of the rear bearing members, releasing the front bearing tongue on each blade to clamp the fuse wire in the cradles, and encapsulating the assembly with a transparent thermoplastic material except for the ends of the blades opposite the fuse wire which are left projecting from the thermoplastic material for being received in female pressure clip connectors.
REFERENCES:
patent: 3493915 (1970-02-01), Cox
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