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Power tool protection method and system

A technology for power tools and protection systems, applied in the field of power tools to achieve the effect of increasing safety

Active Publication Date: 2020-01-14
POSITEC POWER TOOLS (SUZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Based on this, it is necessary to provide a power tool protection method and system for the problem of how to protect power tools

Method used

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  • Power tool protection method and system
  • Power tool protection method and system
  • Power tool protection method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] Such as figure 1 As shown, the protection method of the power tool of the first embodiment includes steps:

[0028] S1: Collect the state signal of the speed control device and the on-off state of the switching element.

[0029] Specifically, the power tool includes a motor, a power source, a switching element disposed between the motor and the power source, and a speed regulating device. The speed regulating device is electrically connected to the speed regulating sampling circuit, and the signal acquisition circuit arranged in the power tool adopts the state signal of the speed regulating device in the speed regulating sampling circuit. The speed regulating device is installed on the casing of the power tool, and the speed regulating device is adjusted to change the rotational speed of the motor of the power tool. In this embodiment, the speed regulating device is a speed regulating switch.

[0030] The switch element is electrically connected to the duty cycle adj...

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Abstract

The invention relates to a protecting method and system for a power tool. The protecting method includes the steps that state signals of a speed regulation device and the on-off state of a switching element are collected; a preset on-off state of the switching element is determined according to the state signals of the speed regulation device, and the collected on-off state of the switching element is compared with the preset on-off state; and if the collected on-off state of the switching element is beyond the preset on-off state, the power tool is subjected to abnormality treatment. According to the protecting method and system for the power tool, whether the power tool deviates from a normal working state to be abnormal can be judged, the power tool can be protected, and the safety is improved.

Description

technical field [0001] The present invention relates to the technical field of power tools, in particular to a method and system for protecting power tools. Background technique [0002] During the use of power tools, there will be abnormal operation and so on. Generally, whether the power tool deviates from the normal state is identified through the user's perception during the use of the power tool. This way of perception by the user often has a hysteresis phenomenon, that is, the power tool has been abnormal for a period of time during the working process before the user discovers the abnormality of the power tool, which in turn makes the power tool work under abnormal conditions. Security Risk. Contents of the invention [0003] Based on this, it is necessary to provide a power tool protection method and system for the problem of how to protect the power tool. [0004] A protection method for a power tool, the power tool comprising a motor, a power supply, a switchi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B25F3/00
CPCB25F3/00
Inventor 黄文进
Owner POSITEC POWER TOOLS (SUZHOU) CO LTD
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