Rotating Machine Ventilation Channel Layout for Compact Cooling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing rotating devices face challenges in achieving high-speed rotation and size reduction while effectively cooling heat generation sources such as the coil and stator core, which tend to generate higher temperatures.
Innovation Solution
The rotating device incorporates a shaft member, a rotating body with a tubular shape, bearings, and coupling members with ventilation channels and blades oriented in specific directions to facilitate efficient gas flow for cooling, allowing for size reduction without additional ventilation ports.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the rotating device is designed for high-speed rotation and size reduction, then the device becomes more compact and achieves higher performance, but the heat generation from the coil and stator core increases, making cooling more difficult
Solution Approach 1:
The patent combines the bearing support function with the cooling function by integrating ventilation channels directly into the bearing structure. The bearing housing incorporates air intake and discharge ports that create cooling passages through which air flows to remove heat from the stator core and coil, eliminating the need for separate cooling components and enabling effective heat dissipation in a compact design
Solution Approach 2:
The bearing structure serves multiple functions simultaneously: it provides mechanical support for rotation while also functioning as a cooling system. The bearing housing acts as both a structural component and a thermal management system with integrated ventilation channels that intake and discharge air to cool the heat-generating components
2Temperature
If additional ventilation ports are added to improve cooling, then heat dissipation improves, but the device complexity and size increase
Solution Approach 1:
The patent merges the ventilation ports with the bearing housing structure, so that the bearing components themselves serve as the cooling passages. The air intake port and discharge port are integrated into the bearing assembly, eliminating the need for separate ventilation components and reducing overall device complexity while maintaining effective cooling
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 enables efficient cooling of the stator and heat generation sources, stabilizes rotation, and achieves high performance with a compact design by utilizing the ventilation channels between the bearings and rotor, enhancing cooling efficiency and preventing disruption of the gas flow.
Implementation Method 1
a gas can flow inside the rotating body in the axial direction
Implementation Method 2
the plurality of blades may be oriented in a direction inclined with respect to an axial direction of the shaft member
Data Source
AI summary
Provided is a rotating device having excellent performance of cooling a heat generation source. Included are a shaft member, a rotating body having a tubular shape and rotatable about the shaft member, a bearing supporting the rotating body with respect to the shaft member, and a coupling member disposed between the bearing and the rotating body in a radial direction. The coupling member includes a ventilation channel communicating with an inside and an outside of the rotating body.