Foil heater, bobbin assembly utilizing same and method of...

Details Foil heater, bobbin assembly utilizing same and method of... Foil heater, bobbin assembly utilizing same and method of...

H - Electricity

05

K

309/103, 26/123,

H05K 3/34 (2006.01) B23K 3/03 (2006.01) H05B 3/16 (2006.01) H05B 3/58 (2006.01)

Patent

CA 1259109

ABSTRACT OF THE DISCLOSURE A bobbin assembly for a soldering/desoldering device may be readily produced by utilization of a heater assembly comprising an electrically insulating tape-having an etched foil heater bonded to one side thereof. The bobbin assembly is formed by wrapping the heater assembly about a cylindrical bobbin so as to form a first insulating layer in contact with the bobbin, a layer comprising the heater in contact with the first layer and a second insu- lating layer in contact with the heater. A wire is then wound about the entire assembly, in a helical manner, to hold all elements in place. Additionally, a dissimilar metal lead may be spot welded to the bobbin to form a thermocouple junction used for sensing the bobbin assembly temperature.

509896

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