Drive Motor Cooling via Segmented Casing Gaps
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Solution Overview
Problem
Existing drive motors generate excessive heat over time, leading to increased internal temperatures and reduced service life.
Innovation Solution
A drive device design incorporating a casing with a gap between the motor housing and casing to facilitate airflow, along with heat-dissipating fans and a cooling pipeline to enhance heat dissipation, including a control device with additional heat-dissipation fins and fans to manage heat from the controller.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the motor housing is enclosed without gaps, then the structural integrity and protection are improved, but the heat dissipation efficiency deteriorates
Solution Approach 1:
The casing is divided into multiple segments with gaps between them, allowing the structure to maintain integrity while creating airflow channels for heat dissipation. The segmented design enables both protection and thermal management functions simultaneously.
Solution Approach 2:
The casing has different properties in different regions: solid enclosed sections for structural integrity and protection, and gap sections for heat dissipation. This local differentiation allows each region to fulfill its specific function optimally.
2Object-affected harmful factors
If the motor housing is enclosed without gaps, then the protection against external factors is improved, but the heat dissipation capability deteriorates
Solution Approach 1:
The protective casing is segmented to include both enclosed sections for protection and gap sections for heat dissipation, allowing simultaneous achievement of protection and thermal management.
Solution Approach 2:
The gaps in the casing act as intermediaries that allow heat to escape while still providing a protective enclosure. The gap structure mediates between the need for protection and the need for heat dissipation.
3Temperature
If heat dissipation structures are added to the control box, then the heat dissipation efficiency is improved, but the device complexity increases
Solution Approach 1:
The heat dissipation fins are merged with the control box structure, and the fan is integrated into the same assembly. This combining of functions reduces overall complexity compared to having separate heat dissipation systems.
Solution Approach 2:
The control box structure serves multiple functions: housing the controller, providing heat dissipation surfaces through fins, and supporting the fan for active cooling. This multi-functionality reduces the need for additional separate components.
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 design significantly improves heat dissipation efficiency, prolonging the service life of the drive device by effectively managing heat generated by both the motor and control components.
Implementation Method 1
The first heat-dissipating fan is connected to the end of the motor shaft away from the end cover to rotate with the motor shaft... The casing and the motor housing are spaced apart at certain intervals to form a gap between the casing and the motor housing for air flow to pass through
Implementation Method 2
The control device may also include a heat dissipation fin. The heat dissipation fin may be arranged on an outer surface of the control box and may be arranged opposite to the controller. The second heat-dissipating fan may be connected to the heat dissipation fin.
Data Source
AI summary
The present invention provides a drive device including a drive motor. The drive motor includes an end cover, a motor housing, a stator, a rotor, a motor shaft, and a bearing. The drive motor further includes a casing and a first heat-dissipating fan used for dissipating heat for the motor housing. The casing is fixedly mounted on a side of the end cover to contain the motor housing into a chamber formed by the casing. The casing and the motor housing are spaced apart at certain intervals to form a gap between the casing and the motor housing for air flow to pass through. The first heat-dissipating fan is connected to the end of the motor shaft away from the end cover to rotate with the motor shaft. The casing is provided with an air inlet and an air outlet for air flow to pass through.