Insulated Coil Cooling Pipeline for Disc Motor Stators
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Solution Overview
Problem
Motors experience temperature rise due to energy loss in the coil, which can lead to burning if not adequately cooled.
Innovation Solution
A motor cooling system with insulated cooling pipelines that contact the coil and stator iron core, utilizing circulating coolant for heat conduction, and a separate iron core cooling passage to manage temperature, while maintaining the magnetic gap integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If cooling pipelines are installed to cool the motor coil, then the temperature control is improved, but the structural complexity increases
Solution Approach 1:
The cooling pipeline is integrated directly into the stator housing structure, merging the cooling function with the structural component. This eliminates the need for separate cooling brackets or additional mounting structures, thereby reducing overall device complexity while maintaining effective cooling capability.
Solution Approach 2:
The stator housing serves dual functions: it provides structural support and houses the cooling pipeline. This multi-functionality reduces the number of separate components needed, simplifying the overall structure while achieving both mechanical support and thermal management.
2Temperature
If the cooling pipeline contacts the coil directly for cooling, then the cooling efficiency is improved, but the risk of electrical short circuit increases
Solution Approach 1:
An insulating layer is introduced between the cooling pipeline and the coil, serving as an intermediary that allows thermal contact for cooling while preventing electrical conduction. This mediator maintains both cooling efficiency and electrical insulation, resolving the contradiction between thermal and electrical requirements.
Solution Approach 2:
The cooling pipeline incorporates insulating materials in its construction, creating a composite structure that provides both thermal conduction pathways for cooling and electrical insulation barriers. This composite design enables simultaneous achievement of cooling efficiency and electrical safety.
3Temperature
If the cooling pipeline is positioned to maximize cooling contact, then the temperature control is improved, but the magnetic gap integrity may be compromised
Solution Approach 1:
The cooling pipeline is strategically positioned to contact only specific regions of the coil that generate the most heat, rather than uniformly contacting the entire coil assembly. This localized cooling approach maintains temperature control in critical areas while preserving the overall magnetic gap integrity and flux distribution.
Solution Approach 2:
The cooling system is designed with segmented cooling zones that target specific high-heat areas of the coil, allowing effective temperature control in those regions without interfering with the magnetic gap in other areas. This segmentation enables selective cooling that maintains magnetic field integrity.
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
Effectively cools the motor coil and stator, preventing overheating and potential failure, while ensuring the magnetic field interaction between the rotor and stator remains undisturbed.
Implementation Method 1
a bottom surface of the insulated cooling pipeline is in contact with the coils of the disc motor stator for cooling the coils
Implementation Method 2
utilizing circulating coolant for heat conduction
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
A motor cooling system, a motor stator and a disc motor. The motor cooling system comprises an insulated cooling pipeline (2); the insulated cooling pipeline (2) is mounted on a stator housing (3), the top surface of the insulated cooling pipeline (2) is lower than or flush with the top surface of a stator iron core (4), and the bottom surface of the insulated cooling pipeline (2) touches a coil (5) of the motor stator for use in cooling the coil (5); the top surface of the stator iron core (4) is configured to being arranged relative to a rotor, so that a magnetic field generated by the coil (5) can interact with a rotor permanent magnet. Since the outer bottom surface of the insulated cooling pipeline (2) touches the coil (5) of the motor stator, a liquid coolant in the insulated cooling pipeline (2) can cool the coil (5) by means of heat conduction, thus preventing the motor from burning out due to the temperature of the motor increasing.