Electrical arrangement in power tools--power tool with slide swi

Details Electrical arrangement in power tools--power tool with slide swi Electrical arrangement in power tools--power tool with slide swi

1994-11-25

1996-08-06

Martin, David S.

Electricity: motor control systems

Open loop speed control system for dc motor with commutator

Analog armature control

388937, 15412, 200 6172, 200252, H02P 7288

Patent

active

055442749

ABSTRACT:
A power tool such as a hand held vacuum cleaner, has a housing and nozzle. The housing mounts a motor and switch carrier. A battery pack powers the motor. The electrical arrangements comprise conductors punched from a single strip and fixed in guides formed on the carrier. Terminals of the motor and battery are pressed through slits in some conductors. The conductors pass into tracks formed on a tray of the switch. A mask is positioned on the tray to expose the conductors in discrete switch positions of slide connectors mounted in a switch slide slidably mounted on the tray. A mask (78) is positioned on the tray to expose the conductors in discrete switch positions (A, B, C) of slide connectors (68) mounted in a switch slide (64) slidably mounted on the tray.

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