Motor with bracket
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
High-speed rotation in motors can lead to overheating of bearings, reducing their lifespan and motor performance due to inadequate heat dissipation.
Innovation Solution
A motor design incorporating a bearing supporter with pores to facilitate air flow between the bearing and a bracket, creating a heat dissipation flow path that efficiently dissipates heat away from the bearing, while also aligning the bearing position to prevent overheating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the rotating shaft is rotated at high speed, then the motor can generate sufficient driving force, but the bearing may be overheated and its lifespan shortened
Solution Approach 1:
The bearing heat dissipation flow path is segmented into multiple sections: air inlet from the impeller, passage through pores in the bearing supporter, flow between bearing and bracket, and discharge through bracket through-hole. This segmentation allows systematic heat dissipation at different stages, effectively managing bearing temperature during high-speed rotation
Solution Approach 2:
The bearing supporter acts as an intermediary component with porous structure, facilitating heat transfer from the bearing to the air flow. The pores in the bearing supporter enable air to penetrate and carry heat away, while the supporter itself conducts heat from the bearing inner and outer races to the cooling air
2Temperature
If a complex cooling system is added to dissipate bearing heat, then heat dissipation performance improves, but device complexity increases
Solution Approach 1:
The bearing supporter serves multiple functions: it supports the bearing, provides structural alignment, and acts as a heat dissipation device through its porous structure. The bracket also serves dual purposes as a mounting structure and a heat dissipation component with integrated through-holes. This multi-functionality eliminates the need for separate cooling systems
Solution Approach 2:
The motor's own operational components (impeller, air flow, bracket) are utilized for heat dissipation purposes. The air flow generated by impeller rotation naturally passes through the bearing cooling path without requiring external fans or pumps, making the system self-sufficient
3Manufacturing precision
If the bearing is tightly fixed in the bracket, then positioning precision improves, but heat dissipation efficiency decreases
Solution Approach 1:
The bearing supporter has different structural properties at different locations: it provides rigid support and precise positioning where needed, while maintaining porous structure in other areas to facilitate air flow and heat dissipation. The bracket similarly provides precise mounting holes for positioning while having through-holes for heat dissipation pathways
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 minimizes overheating within the motor, maximizes bearing lifespan, and enhances heat dissipation performance through a simple structure, ensuring optimal motor performance.
Implementation Method 1
a bearing heat dissipation flow path between an outer surface of the bearing and an inner surface of the bracket, and the bearing heat dissipation flow path is configured to pass air therethrough
Implementation Method 2
the bearing heat dissipation flow path is configured to pass air therethrough
Data Source
AI summary
A motor includes a motor body, a bracket installed in the motor body, a rotating shaft, a bearing accommodated inside the bracket and supporting the rotating shaft, and a bearing supporter defining a plurality of pores. The bracket and the bearing define a bearing heat dissipation flow path between an outer surface of the bearing and an inner surface of the bracket, and the bearing heat dissipation flow path is configured to pass air therethrough. The bearing supporter is disposed in the bearing heat dissipation flow path, and the bracket defines a bracket through-hole configured to discharge air that has passed through the plurality of pores of the bearing supporter.