Efficient heat dissipation electric actuator

By using a dynamic filling and hydraulic transmission mechanism, combined with a coaxially linked water pump and fan, the electric actuator motor achieves adaptive heat dissipation, solving the problem of a single motor heat dissipation mode and improving the motor's operational stability and lifespan.

CN122339128APending Publication Date: 2026-07-03CHANGZHOU TIANQIN ELECTRIC POWER EQUIP CO LTD
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Patent Information

Application Number
CN202610298226.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-12
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The existing electric actuators have a relatively simple motor cooling mode, which makes it difficult to adjust flexibly according to actual needs and affects the service life of the motor.

Method used

It adopts a dynamic filling mechanism and a hydraulic transmission mechanism, adjusts the amount of heat transfer oil by means of a bimetallic strip, and combines a coaxially linked water pump and fan to achieve adaptive adjustment of motor heat dissipation, and blocks reverse heat transfer by means of a hydraulic transmission mechanism.

Benefits of technology

It achieves adaptive heat dissipation of the motor under different loads and temperatures, improving operational stability and service life, while simplifying the structure, reducing energy consumption, and protecting the temperature stability of the core drive components.

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Abstract

The invention discloses an efficient heat dissipation electric actuator, and relates to the technical field of energy-saving motors. A dynamic filling mechanism is arranged between a motor and an annular wall, a piston block is driven to move by means of the principle that a bimetallic strip changes the bending degree in real time according to the internal temperature of the motor, and the amount of heat conduction oil filled into a filling cavity is changed; the effective heat conduction contact area and the heat conduction efficiency between the end wall of the motor and the external annular wall are flexibly adjusted, the heat dissipation capability can be adaptively adjusted according to the real-time temperature in the motor under the condition that the motor is used for constantly driving a water pump and a fan, the motor is effectively ensured to always work in a proper temperature interval, overheating damage is prevented, and the service life of the motor is prolonged. And the problems of large low-temperature starting resistance, low efficiency, condensation corrosion and the like are avoided, and the operation stability and the service life of the motor are remarkably improved.
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