An electric chainsaw with a heat dissipation structure

By incorporating a heat dissipation component into the electric chainsaw and utilizing a fan and duct system to achieve directional forced air cooling, the problem of poor heat dissipation in electric chainsaws is solved, extending the equipment's service life and improving maintenance convenience.

CN224275424UActive Publication Date: 2026-05-26ZHANGJIAGANG CHUANGJI MACHINERY MFG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHANGJIAGANG CHUANGJI MACHINERY MFG
Filing Date
2025-05-15
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing electric chainsaws have limited heat dissipation during prolonged use, leading to heat buildup and mechanical failure.

Method used

By setting up a heat dissipation component, the motor drives the saw blade to rotate and simultaneously drives the fan to rotate through the transmission shaft. This allows external air to enter the upper and lower air ducts through the air inlet, enter the motor housing, and be blown onto the surface of the heat dissipation fins. The heat is then blown out through the air outlet, forming directional forced air cooling. Combined with the upper and lower air ducts and fins, this achieves efficient heat dissipation.

Benefits of technology

It achieves efficient heat dissipation of the motor, avoids mechanical failures caused by overheating, extends the service life of the equipment, and prevents sawdust clogging through the filter screen, improving the convenience of maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses an electric chainsaw with a heat dissipation structure, relating to the field of power tool technology. The utility model includes a main housing and a heat dissipation assembly. The main housing includes a motor housing with a motor fixedly connected inside. The heat dissipation assembly includes a fixing block with a fan inside. An air inlet is fixedly connected to the front of the fixing block, an upper air duct is fixedly connected to the top of the fixing block, and a lower air duct is fixedly connected to the bottom of the fixing block. The sides of the upper and lower air ducts away from the fixing block are fixedly connected to the outer surface of the motor housing. Heat dissipation fins are fixedly connected to the outer surface of the motor. By setting up the heat dissipation assembly, specifically with the fan rotating, external air enters the motor housing through the air inlet and the upper and lower air ducts, blowing onto the outer surface of the heat dissipation fins and expelling the motor heat through the air outlet. This achieves efficient heat dissipation of the motor, solving the problem of limited heat dissipation in existing electric chainsaws, which may lead to heat accumulation and mechanical failure during prolonged operation.
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Citation Information

Patent Citations

  • Electric chain saw

    CN220681077U