Wireless Power Tool Dust Collector Pairing Mechanism

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Solution Overview

Problem

Conventional electric power tools with dust collectors require manual registration of identification information, which is cumbersome and limits usability, especially when the power tool and dust collector are not in close proximity.

Innovation Solution

The electric power tool and dust collector system employs a wireless transmission unit and control unit to enable pairing without the need for manual registration, using a pairing request signal to shift operation modes and register the power tool as a link target, allowing for easy registration and reduced risk of incorrect linking.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual registration of identification information is required, then the dust collector can be inhibited from erroneously operating, but the registration process becomes cumbersome and usability is limited

Engineering Contradiction:

Improveprevention of erroneous operationVSAvoidregistration process convenience

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The electric power tool automatically transmits its identification information to the dust collector through wireless communication without requiring manual registration. The tool's control unit autonomously performs the pairing process by transmitting identification information when the dust collector is in pairing mode, eliminating the need for users to manually register devices while maintaining reliable device matching

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent replaces the manual mechanical registration process (pressing switches, typing information) with wireless electromagnetic communication. The identification information is transmitted automatically via radio waves between the electric power tool and dust collector, substituting physical manual operations with automated electronic signal exchange

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If the power tool and dust collector are not in close proximity during registration, then user mobility is improved, but reliable pairing becomes more difficult

Engineering Contradiction:

Improveuser mobility during registrationVSAvoidpairing reliability at distance

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The dust collector operates in different modes (normal mode and pairing mode) that dynamically change its reception characteristics. In pairing mode, the dust collector actively searches for and receives identification information from electric power tools within range, enabling reliable pairing even when devices are not in immediate proximity. The mode switching optimizes reception sensitivity for the specific task at hand

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS10039137B2Electric power tool and dust collector

Publication Date: 2018.07.31 MAKITA CORP

AI summary

An electric power tool includes a wireless transmission unit and a transmission control unit that causes the wireless transmission unit to transmit a linking signal to a dust collector to thereby cause the dust collector to operate in a linked manner. An operation mode of the transmission control unit is shifted from a normal mode to a pairing mode by operation of an operation unit. When in the pairing mode, the transmission control unit causes the wireless transmission unit to transmit a pairing request signal to the dust collector. In this way, the electric power tool can be registered in the dust collector as a link target appliance.