Contactless Cooling Pump Assembly With Universal Axial-Radial Drive
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Solution Overview
Problem
Existing computer water cooling systems are limited by the need for specific magnetic flux orientations between the rotor and stator, restricting versatility and increasing system volume due to separate pump and water chamber structures.
Innovation Solution
A cooling assembly with a contactless drive structure that allows for either axial or radial magnetic flux configurations, utilizing a stator and rotor with tangential magnetic fields, and incorporates a flow guide channel for enhanced heat exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If separate structures for pump and water chamber are used, then the cooling system can be assembled, but the volume of the cooling system increases
Solution Approach 1:
The patent merges the pump structure and water chamber into an integrated assembly where the pump seat serves dual purposes as both a mounting structure for the drive device and a containment structure for the water chamber. This integration eliminates the need for separate pump housing and water chamber components, reducing overall system volume while maintaining assembly capability through modular sub-components.
2Reliability
If specific magnetic flux orientations are required between rotor and stator, then the drive mechanism can function, but versatility is restricted
Solution Approach 1:
The pump seat is designed as a universal mounting structure that can accommodate different configurations of drive devices (axial flux or radial flux motors) and impellers. The standardized interface and mounting features on the pump seat allow various motor types to be interchangeably mounted, enabling the same base structure to support multiple drive configurations without requiring custom housing designs for each variant.
3Weight of stationary object
If axial drive device is installed, then the pump body becomes flattened and lightweight, but thermal management becomes more challenging
Solution Approach 1:
The water chamber is nested within or adjacent to the axial drive device assembly, with the heat conduction surface positioned to maximize thermal contact with the motor housing or mounting structure. This nested arrangement allows the compact axial motor design to be combined with an integrated cooling pathway where the water chamber serves as both a functional component and a heat dissipation structure, managing thermal loads in the lightweight design.
4Temperature
If radial drive device is installed, then thermal management is straightforward, but the pump body loses flattened shape and increases weight
Solution Approach 1:
The pump seat and housing structures are optimized with localized reinforcement and thermal conduction paths specifically at the mounting regions for radial drive devices. The heat conduction surface is positioned to leverage the natural thermal pathways of the radial motor configuration, providing straightforward thermal management only where needed rather than requiring the entire pump body to be optimized for heat dissipation, thus minimizing unnecessary weight addition.
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
Enables flexible production with universal housing designs, lightweight axial operation, continuous high-load thermal management, and improved cooling efficiency through direct heat exchange.
Implementation Method 1
magnetic fields of the rotor and the stator are axially or radially tangent to each other; the drive device is configured to drive the impeller to rotate via the stator and the rotor
Implementation Method 2
a bottom of the housing is provided with a heat conduction surface
Data Source
AI summary
A cooling assembly based on a contactless drive structure includes a housing and a drive device. The housing is provided with a cavity inside, and an impeller is rotatably disposed in the cavity; the housing is further provided with a fluid inlet and a fluid outlet, and both the fluid inlet and the fluid outlet are in communication with the cavity. The drive device includes a stator and a rotor, a pump seat is detachably disposed on an upper portion of the housing, the stator is disposed on the pump seat, the rotor is directly or indirectly connected to the impeller, and magnetic fields of the rotor and the stator are axially or radially tangent to each other; the drive device is configured to drive the impeller to rotate via the stator and the rotor.