Controlling device and controlling method for speed adjustment of electric tool

Abstract

The present invention relates to a speed regulation control apparatus for an electric tool, and at the same time, also relates to a control method therefor, which belong to the technical field of electric tools. The apparatus comprises a switch device arranged at the holding position of an electric tool, a control circuit which receives a control signal of the switch device and a rotation power apparatus controlled by the control circuit, the switch device being two control buttons which correspond to two finger positions in a holding posture respectively, and the pressing states of the two control buttons corresponding to the forward rotation and reverse rotation control positions of the rotation power apparatus respectively. Thus, when using an electric tool, two fingers which correspond to buttons only have to apply a force respectively when forward / reverse rotation control is needed, and the fingers which apply the force only have to control the degree of the force when speed regulation is needed, which is very convenient, and during the whole operation process, a holding posture need not be changed, thereby being capable of ensuring safety.

Description

technical field [0001] The invention relates to a speed regulation control device, in particular to a speed regulation control device of an electric tool, and also relates to a control method thereof, belonging to the technical field of electric tools. Background technique [0002] Power tools such as electric hand drills generally need to perform operations such as reversing and speed regulation. According to the applicant's understanding, although through continuous improvement, the above-mentioned operations have been realized with one hand, but because the operation control parts need to be set separately in the existing operations, it is necessary to vacate the operation fingers from the five fingers that originally held the tool for corresponding operations. operation control. For example, hand electric drills generally separate the reversing button and speed regulating switch, so when reversing or speed regulating operations, the holding posture must be changed-for e...

AI Technical Summary

Problems solved by technology

For example, hand electric drills generally separate the reversing button and speed regulating switch, so when reversing or speed regulating operations, the holding posture must be changed-for example, the thumb is freed for switching operations, which is not only inconvenient to operate, but also It is easy to affect the grip and control of electric tools due to movement deformation, which poses a safety hazard

The search found that the U.S. patent application with the publication number US20120068633 discloses an electric tool for speed regulation by pressing operation. Although it is convenient to change the grip state during speed regulation, the reversing button and the speed regulation switch are still Separate settings, so the reversing operation still requires a change of holding posture (usually requires freeing the thumb to press the reversing button above the handle)

Images