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Electric tool, and control method and device thereof

A control method, technology of electric tools, applied in the direction of electromechanical device, single motor speed/torque control, connection with control/drive circuit, etc.

Inactive Publication Date: 2017-03-08
POSITEC POWER TOOLS (SUZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is that in the prior art, it is impossible to adjust according to the change of load

Method used

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  • Electric tool, and control method and device thereof
  • Electric tool, and control method and device thereof
  • Electric tool, and control method and device thereof

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Embodiment Construction

[0074]The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0075] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, o...

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Abstract

The invention relates to the field of electric tools, in particular to a control method of an electric tool, a control device of the electric tool, and the electric tool. The control method of the electric tool comprises the steps of: detecting a force applied on a workpiece by an operating head; and controlling a rotational speed of a motor to accelerate when the force applied on the workpiece by the operating head increases. Through detecting the change of the force applied on the workpiece by the operating head, the change of the rotational speed of the motor is controlled accordingly, thereby achieving the purpose of adjusting the rotational speed of the motor according to user requirements and load change.

Description

technical field [0001] The invention relates to the field of electric tools, in particular to a control method and device for the electric tool and the electric tool. Background technique [0002] A motor is an electromagnetic device that converts or transmits electrical energy according to the law of electromagnetic induction. Its main function is to generate driving torque as a power source for electric tools, electrical appliances or various machinery. [0003] For electric tools, effective control of the motor according to the load size can greatly improve work efficiency. At present, during the use of electric tools, there is usually a first gear speed for no-load and a first gear speed for load, and the load speed is greater than the no-load speed. The speed adjustment scheme makes the motor always keep a certain load speed constant under the load state, and does not increase the speed of the motor correspondingly when the load increases. This adjustment method cann...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P6/06H02K11/21H02K11/30A01D34/00
CPCA01D34/008H02P6/06
Inventor 张传兵黄文进顾华
Owner POSITEC POWER TOOLS (SUZHOU) CO LTD
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