Integrated Disc Motor Fan Structure for Cooling and Lower Rotor Inertia
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Solution Overview
Problem
Traditional disc-type motors have low power density and output efficiency, which limits their performance in generators, particularly in terms of power input and heat management.
Innovation Solution
A combined fixed fan structure for disc-type motors, featuring a motor fan fixing frame with rotating sheets and a fan, which reduces the rotor's weight and rotational inertia, and enhances heat dissipation by using aluminum alloy or graphene materials, allowing for improved alignment and mounting of permanent magnets, and integrating a stator with a non-contact heat-generating component.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional disc-type motor structure is used, then manufacturing is simpler, but power density and output efficiency are low
Solution Approach 1:
The patent combines the fan structure with the rotor assembly by integrating the fan blades directly onto the rotor core, eliminating separate fan components and simplifying the overall structure while improving power density and cooling efficiency
2Weight of moving object
If rotor weight is reduced, then rotational inertia decreases and efficiency improves, but structural strength may be compromised
Solution Approach 1:
The patent employs composite material construction for the rotor, combining lightweight materials with high-strength components to reduce overall rotor weight and rotational inertia while maintaining sufficient structural strength for operational demands
3Loss of energy
If heat dissipation is enhanced, then output efficiency improves, but device complexity increases
Solution Approach 1:
The patent merges the cooling fan function with the rotor assembly, where the rotor itself serves as the driving element for heat dissipation, eliminating the need for separate cooling systems and reducing overall device complexity while enhancing heat dissipation efficiency
4Productivity
If permanent magnets are precisely aligned, then output efficiency improves, but manufacturing precision requirements increase
Solution Approach 1:
The patent incorporates preliminary alignment features directly into the rotor core structure, such as pre-positioned mounting holes and alignment pins, that guide permanent magnet placement during assembly, ensuring precise alignment without requiring extremely high manufacturing precision in the final assembly step
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 solution reduces energy consumption, improves output efficiency by at least 3%, decreases rotor temperature by over 5°C, and simplifies production processes, leading to cost reductions and increased stability.
Implementation Method 1
enhances heat dissipation by using aluminum alloy or graphene materials
Implementation Method 2
a plurality of fan blades arranged around the shaft hole are fixed in the spacing frame; and a side surface of the spacing frame is provided with a plurality of air outlet channels
Data Source
AI summary
A combined fixed fan for a disc-type motor includes a front fixing sheet (1), a fan (2) and a rear fixing sheet (3) in sequence in an axial direction, wherein the front fixing sheet and the rear fixing sheet are both circular sheets with a central hole (10), and are provided with magnet fixing holes (4) evenly arranged in a circle, the fan (2) is integrally provided with an annular column-shaped spacing frame (11), a center of the fan (2) is axially provided with a shaft hole (15) for a motor rotating shaft to pass through, and a plurality of fan blades (13) arranged around the shaft hole (15) are arranged in the spacing frame (11); and a side surface of the spacing frame is provided with a plurality of air outlet channels (16) evenly arranged in a circle.