Direct current signal trigger switch based on Hall signal control

Abstract

The invention provides a direct current signal trigger switch based on Hall signal control. The switch comprises a base body, an upper cover and a push shaft, wherein one end of the push shaft is arranged in a box body formed by the base body and the upper cover, the other end of the push shaft extends out of the box body, a circuit board assembly is arranged on one side of the push shaft, an on-off Hall element is arranged on the side, away from the push shaft, of the circuit board assembly, and an on-off magnet matched with the on-off Hall element is arranged on the side, close to the circuit board assembly, of the push shaft. The direct-current signal trigger switch based on Hall signal control is advantaged in that by arranging the magnet, after the switch trigger is loosened, the circuit board is almost not electrified, so the quiescent current of the switch is almost zero, the service life of the battery of the electric tool can be effectively prolonged, the risk caused by excessive discharge of the battery is reduced, and the national safety standard requirement is met.

Description

technical field [0001] The present disclosure relates to a trigger switch, in particular to a DC signal trigger switch controlled based on a Hall signal. Background technique [0002] Such DC trigger switches currently on the market generally realize the control of electronic signals through mechanical structures such as shrapnel and circuit board contact, contact contact, etc., which have the following defects: [0003] 1. The mechanical contact is unstable, so that when the electric tool is used for vibration, the mechanical contact is not reliable, and there is an instantaneous disconnection phenomenon, resulting in unstable operation of the electric tool; [0004] 2. When the mechanical contact of reversing is disconnected in an instant, it will cause the steering of the electric tool to reverse, which will cause harm to the human body; Speed ​​jump and instability; when the on-off mechanical contact is not good, it will cause instantaneous shutdown or speed instability...

AI Technical Summary

Problems solved by technology

[0003] 1. The mechanical contact is unstable, so that when the electric tool is used for vibration, the mechanical contact is not reliable, and there is an instantaneous disconnection phenomenon, resulting in unstable operation of the electric tool;

[0004] 2. When the mechanical contact of reversing is disconnected in an instant, it will cause the steering of the electric tool to reverse, which will cause harm to the human body; Speed ​​jump and instability; when the on-off mechanical contact is not good, it will cause instantaneous shutdown or speed instability of the electric tool;

[0005] 3. The service life of mechanical contact is short, and the service life cycle of current users on electric tools is increasing day by day, and the wear and tear of machinery can no longer meet the increasing demand for electric tools in the current market

Images