Submersible Pump Assembly Modular Covers Thermal Management
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Solution Overview
Problem
Vehicle pump assemblies face challenges in meeting unique size, shape, and performance constraints while minimizing part numbers and reducing complexity and costs, due to varying vehicle designs and requirements.
Innovation Solution
A submersible pump assembly with a stator housing and rotatable rotor, coupled with a positive displacement pump and a printed circuit board (PCB) that transfers heat to the fluid, allowing for interchangeable pump covers and parts to adapt to different transmission systems, maximizing common parts usage and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If pump assemblies are customized for each vehicle model to meet unique size, shape, and performance constraints, then vehicle-specific performance requirements are satisfied, but part numbers increase, inventory complexity increases, and manufacturing costs increase
Solution Approach 1:
The pump assembly is divided into modular components including a pump body, pump cover, and interchangeable mounting brackets. Each module can be independently manufactured and assembled, allowing customization through different combinations of standard parts rather than requiring completely unique assemblies for each vehicle model.
Solution Approach 2:
The pump body and pump cover are designed as universal components that can be used across multiple vehicle models. The interchangeable mounting brackets provide vehicle-specific adaptation while the core pump mechanism remains standardized, reducing part numbers while maintaining versatility.
2Adaptability or versatility
If pump assemblies are customized for each vehicle model, then individual vehicle constraints are met, but manufacturing costs per part increase due to low volume runs
Solution Approach 1:
The pump body and pump cover are designed as universal components that can be used across multiple vehicle models. The interchangeable mounting brackets provide vehicle-specific adaptation while the core pump mechanism remains standardized, reducing part numbers while maintaining versatility.
Solution Approach 2:
The mounting brackets are designed with adjustable parameters and configurations that can be modified to accommodate different vehicle models without changing the core pump assembly. This allows a single base design to serve multiple applications through parameter variations rather than requiring completely different assemblies.
3Temperature
If heat is transferred from PCB to fluid in the channel, then thermal management of the PCB is improved, but the pump assembly design becomes more complex
Solution Approach 1:
The PCB mounting structure is integrated with the pump body, combining the thermal management function with the structural support function. The pump body serves dual purposes: as a mechanical housing and as a heat sink for the PCB, eliminating the need for separate cooling components and reducing overall design complexity.
Solution Approach 2:
The pump assembly itself provides thermal management for the PCB through its structural components. The fluid channels in the pump body naturally serve as heat dissipation pathways, allowing the system to self-regulate PCB temperature without requiring additional active cooling mechanisms.
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 pump assemblies to meet individual vehicle requirements with reduced part numbers and complexity, lowering costs and increasing production efficiency while maintaining performance across various transmission systems.
Implementation Method 1
The PCB is coupled with the pump body proximate the channel, such that heat is transferred from the PCB to the fluid in the channel
Data Source
AI summary
A pump assembly includes an electric motor and different selectable pump covers, and is suitable for mounting within a transmission fluid reservoir for transferring automatic transmission fluid. The pump assembly includes a stator housing having a cylindrical cavity for receiving ATF contained in the transmission fluid reservoir. A rotor is rotatably coupled within the cylindrical cavity and has a plurality of magnets arranged about a rotational axis thereof. A flux collector is coupled with the stator housing adjacent to the cylindrical cavity for transferring magnetic flux from one of the plurality of magnets from a first portion to a second portion thereof. A hall sensor is disposed proximate the second portion for sensing magnetic flux in the flux collector, such that the magnetic flux is used to determine a rotated position of the rotor.