Electric Chainsaw Intake Filtration for Cleaner Motor Cooling
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Solution Overview
Problem
Conventional electric chainsaws face efficiency issues due to dust accumulation in the cooling route, which decreases motor cooling and driving efficiency, and makes maintenance difficult.
Innovation Solution
An electric working tool with a retention chamber housing an air filter, positioned between the intake and the cooling route, filters dust from the air before it enters the cooling system, allowing for easy maintenance by facilitating the attachment and removal of the air filter through a dedicated hole.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If air is taken through an intake into a cooling route to cool the motor, then cooling efficiency is improved, but dust enters the cooling route and accumulates, reducing motor efficiency
Solution Approach 1:
An air filter is introduced as an intermediary component between the intake and the cooling route. The air filter includes a filter member that traps dust particles while allowing air to pass through, thus preventing dust accumulation in the cooling route while maintaining effective motor cooling
2Object-affected harmful factors
If the air filter is integrated into the body case, then dust prevention is improved, but maintenance becomes difficult
Solution Approach 1:
The air filter is designed as a separate, detachable component from the body case. The filter housing can be removed independently, allowing users to access, clean, or replace the filter member without disassembling the entire tool, thus maintaining effective dust prevention while significantly improving ease of maintenance
3Productivity
If the intake is opened on the outer side surface of the body case, then air intake efficiency is improved, but dust entry is facilitated
Solution Approach 1:
The air filter serves as a mediator positioned at the intake opening on the outer side surface. It allows efficient air intake while blocking dust particles, thus maintaining high air intake efficiency without facilitating dust entry into the cooling route
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The air filter effectively prevents dust from entering the cooling route, maintaining motor efficiency and simplifying maintenance by allowing easy cleaning and replacement of the filter.
Implementation Method 1
an air filter removes dust existing in air flowing through the intake
Data Source
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AI summary
A chainsaw (1) (electric working tool) includes a body case (10), a cutting part (20) (working implement), and a motor (30), wherein the motor (30) is mounted in a motor case (35) disposed in a cooling route (60); an intake (70) communicating with the cooling route (60) is opened on the body case (10) and communicates through the retention chamber (80) with the cooling route (60); an air filter (100) is inserted into the body case (10) and arranged adjacent to the intake (70); the body case (10) has a filter insertion/extraction hole (90) opened thereon and the hole (90) communicates with the retention chamber (80), through which hole (90) the air filter (100) is attachable to and removable from the retention chamber (80) and be a cover for it.