Motor Cooling Fan Air Guiding Structure
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Solution Overview
Problem
Motors experience heat accumulation in their housings, leading to reduced performance and potential damage due to inadequate heat dissipation, with existing cooling fans only effectively dissipating heat on the outer surface.
Innovation Solution
The motor design incorporates a housing with multiple heat dissipation paths, including a cover with air collecting rings and wind-catching projections that guide air currents into the housing and along its surface, enhancing internal and external heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a cooling fan is provided to dissipate heat, then heat dissipation on the outer surface is improved, but heat accumulation in the motor housing cannot be completely solved because air current cannot flow into the interior
Solution Approach 1:
The housing is segmented with multiple inlet holes and outlet holes distributed at different locations, allowing air current to flow through multiple separate paths both inside and outside the housing, thereby solving heat accumulation through divided airflow channels
Solution Approach 2:
The air guiding channels are nested within the housing structure, with inlet holes penetrating the housing wall and channels extending inward to guide air along the stator winding, creating a nested airflow path that efficiently cools internal 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
This design effectively prevents heat accumulation, allowing the motor to operate safely in high-temperature environments without burning out, thereby increasing performance and service life.
Implementation Method 1
a central portion of a whirling, ongoing air current generated by the cooling fan can flow through the space between the air collecting ring and the central hub of the cover and then flow through the first inlet holes of the cover to enter the inner space of the housing and finally flow out of the housing via the outlet holes for dissipating the heat generated in the housing
Implementation Method 2
an outer portion of the air current generated by the cooling fan can flow through the air guiding channels and the second inlet holes to enter the inner space of the housing for further dissipating the heat generated in the housing
Data Source
AI summary
A motor generally includes a housing, a cover, and a cooling fan. The cover defines multiple first inlet holes and is provided with an air collecting ring around the first inlet holes for collecting some of the air current generated by the cooling fan. Furthermore, the cover is provided with multiple wind-catching projections. The housing defines multiple second inlet holes near its opening. The cover is installed to the housing such that the wind-catching projections are respectively located above the second inlet holes of the housing, so as to collect some of the air current. Furthermore, multiple recesses are defined between the wind-catching projections, so that some of the air current may flow along the outer surface of the housing via the recesses to further cool down the housing.