Automatic welding apparatus for solar cells

Details Automatic welding apparatus for solar cells Automatic welding apparatus for solar cells

1981-07-24

1983-06-28

Reynolds, B. A.

Electric heating

Metal heating

Wire, rod, or bar bonding

219 80, 219 85F, 219 867, 219 911, B23K 1110

Patent

active

043907709

ABSTRACT:
Automatic welding apparatus is provided for welding contact tabs to solar lls which are particularly adapted for use in space vehicular solar generators. The apparatus comprises a plurality of welding electrodes arranged to extend across the direction of movement of a solar cell conveying table. The electrodes are movable in two directions perpendicular to each other and both perpendicular to the direction of movement of the conveying table. Furthermore, the apparatus is provided with the capacity for controlling the conveying table to effect automatic positioning of welding points on the solar cells beneath the welding electrodes, high-power current supply for enabling control of the welding current applied to the electrode heads, a protective gas line for feeding each of the electrode heads, an ohmmeter for monitoring the effective contact resistance of each of the welding points, a device for enabling individual visual inspection of the welds produced by each of the electrode heads, and a program control for monitoring the operational parameters of the apparatus, including the number of welds produced, the welding period, the voltage and current, and other parameters whereby the operation of the apparatus may be appropriately managed.

REFERENCES:
patent: 3430028 (1969-02-01), Goforth et al.
patent: 3544754 (1970-12-01), Buttke et al.
patent: 3695501 (1972-10-01), Radobenko
patent: 3696985 (1972-10-01), Herring et al.
patent: 3708648 (1973-01-01), Croucher et al.
patent: 3774006 (1973-11-01), Pasquire et al.
patent: 4041271 (1977-08-01), Lorans
patent: 4121084 (1978-10-01), Wear

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