Electrical coil assembly and terminal therefor
First Claim
1. An electrical coil assembly adapted for connection to at least one electrical lead wire comprising:
- a bobbin having a coil receiving central portion and a pair of generally radially outwardly extending end flanges disposed on opposite ends of said coil receiving portion, said flanges and said central portion thereby defining a coil receiving channel;
a coil of electrically conductive material wound on the central portion of said bobbin within said channel; and
,one of said end flanges having at least one terminal-receiving recess formed therein;
at least one electrically conductive terminal having one end thereof provided with push-in engagement surfaces with other portions thereof defining wire retaining surfaces, said retaining surfaces converging in a direction away from said one end, said terminal having a lug extending therefrom and disposed generally distal said one end;
said at least one terminal having the one end thereof received in said bobbin flange recess in engagement therewith in a first position, said wire retaining surface being operative in said terminal first position to permit an electrically conductive lead to be inserted into said terminal therebetween, said terminal operative, upon movement of said one end to a second position further engaging said recess, to cause an electrical lead inserted through said terminal in said first position to be forced against adjacent portions of said flange and wedged between said retaining surfaces for retention therein; and
said coiled having an end thereof secured to said terminal lug in electrically conductive engagement.
4 Assignments
0 Petitions
Accused Products
Abstract
An electrical coil assembly includes a bobbin having a pair of generally parallel end plates with a pair of terminals inserted into holes in an edge in one of the end plates. A wall is attached to that one of the end plates and extends radially outward therefrom, being formed with a pair of crossholes each aligned with one of the blind holes. A pair of terminals are partially inserted into the blind holes. Each of the terminals includes an elongated slot of reduced width at the end remote from the end plate. A portion of the terminal slot material is lanced out to form a tab at that remote end of the terminal. The close in ends of the terminal slots are lined up with the crossholes. Magnet wire is then wound on the bobbin hub and the two ends of the magnet wire are dressed through respective terminal tabs and then resistance welded thereto. A layer of protective tape is then applied over the surface of the wound coil. Prestripped lead wires are inserted through the crossholes of the wall and through the lower end of the terminal slots. Finally, the terminals are driven in the remainder of the blind hole depth. As a result, the reduced terminal slot widths cut into the lead wires, creating both electrical and mechanical connections.
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Citations
6 Claims
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1. An electrical coil assembly adapted for connection to at least one electrical lead wire comprising:
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a bobbin having a coil receiving central portion and a pair of generally radially outwardly extending end flanges disposed on opposite ends of said coil receiving portion, said flanges and said central portion thereby defining a coil receiving channel; a coil of electrically conductive material wound on the central portion of said bobbin within said channel; and
,one of said end flanges having at least one terminal-receiving recess formed therein; at least one electrically conductive terminal having one end thereof provided with push-in engagement surfaces with other portions thereof defining wire retaining surfaces, said retaining surfaces converging in a direction away from said one end, said terminal having a lug extending therefrom and disposed generally distal said one end; said at least one terminal having the one end thereof received in said bobbin flange recess in engagement therewith in a first position, said wire retaining surface being operative in said terminal first position to permit an electrically conductive lead to be inserted into said terminal therebetween, said terminal operative, upon movement of said one end to a second position further engaging said recess, to cause an electrical lead inserted through said terminal in said first position to be forced against adjacent portions of said flange and wedged between said retaining surfaces for retention therein; and said coiled having an end thereof secured to said terminal lug in electrically conductive engagement. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification