Work machine

By introducing a fan into the working machine for cooling, the problem of increasing heat generation of the control unit as the working load increases is solved, and the workingability and stability of the working machine are improved.

CN119730993APending Publication Date: 2025-03-28KOKI HLDG CO LTD
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Patent Information

Application Number
CN202380060123.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2022-08-19
Filing Date
2023-08-10
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

In the working machine, as the working load increases, the heat generated by the control unit increases, which may lead to problems such as stopping the work, reducing the workingability.

Method used

A working machine is designed, which includes a motor, a controller and a fan that generates airflow by receiving the driving force of the motor, and cools the controller, especially in areas with high heat generation.

Benefits of technology

Through effective cooling measures, the workingability of the working machine is improved and stable operation is ensured when the load increases.

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Abstract

The workability of a working machine is improved. A brush cutter (10) includes a motor (32), a control unit (38), a fan (36), a housing (62), and a front cover (112). The control unit (38) is provided with a microcomputer for controlling the driving of the motor (32). The fan (36) generates an air flow (K) by receiving the driving force of the motor (32). The housing (62) houses the motor (32), the control unit (38), and the fan (36), and has an opening (66). The control unit (38) has a flat plate shape in which the size of the outer shape is the largest when viewed from the front-rear direction, and is disposed between the opening (66) and the fan (36) in the front-rear direction. The front cover (112) is erected from the inner wall surface (62A) of the housing (62) so as to overlap the control unit (38) when viewed from the front-rear direction.
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