Electric Water Pump Sealing Can for Waterproofing
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Solution Overview
Problem
Conventional electric water pumps for vehicle engines face challenges in ensuring reliable waterproof and cooling performance, durability, and operational reliability while maintaining a compact structure, often requiring multiple parts and complex sealing mechanisms.
Innovation Solution
The electric water pump design incorporates a rotating shaft, a rotor assembly, a stator assembly with magnetic force, and a sealing can that forms a gap between the stator and rotor assemblies, using injection-molded PPS and BMC materials for enhanced waterproofing and heat dissipation, reducing the number of parts by integrating components and eliminating the need for additional sealing members.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple sealing members and complex sealing mechanisms are used, then waterproof performance is improved, but device complexity increases
Solution Approach 1:
The sealing can integrates multiple sealing functions into a single component that encloses both the rotor assembly and rotating shaft. This merging of sealing functions reduces the number of separate sealing members needed while maintaining reliable waterproof performance through the integrated sealing structure.
Solution Approach 2:
The sealing can serves multiple functions simultaneously: it seals the waterproof gap between stator and rotor assemblies, supports the rotating shaft, and provides a unified enclosure structure. This multi-functionality eliminates the need for separate sealing mechanisms, reducing device complexity while maintaining reliability.
2Reliability
If multiple parts are used to ensure waterproof and cooling performance, then reliability is improved, but the structure becomes less compact
Solution Approach 1:
The sealing can combines multiple components (sealing members, support structures, and cooling passages) into a single integrated housing. This merging reduces the overall number of parts and consolidates their functions, achieving a more compact structure while maintaining reliable waterproof and cooling performance through the integrated design.
3Reliability
If additional sealing members are added, then operational reliability is improved, but manufacturing complexity increases
Solution Approach 1:
The sealing can is designed as a single integrated component that can be manufactured as one piece, eliminating the need to assemble multiple separate sealing members. This merging simplifies the manufacturing process while maintaining operational reliability through the unified sealing structure that encloses both the rotor assembly and rotating shaft.
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 achieves superior waterproof and cooling performance, increased durability, and operational reliability, with a more compact structure and reduced part count, enhancing the overall efficiency and reliability of the electric water pump.
Implementation Method 1
a stator assembly enclosing the rotor assembly and providing magnetic force for rotating the rotor assembly using electricity supplied from an outside
Implementation Method 2
the sealing can forming an inner surface of the stator assembly such that a gap is defined between the inner surface of the stator assembly and a circumferential outer surface of the rotor assembly
Implementation Method 3
a rotor assembly fitted over a circumferential outer surface of the rotating shaft, the rotor assembly being rotatably installed in a space through which a pumped coolant is able to flow
Data Source
AI summary
An electric water pump, which can not only ensure more reliable waterproof and cooling performance, provides enhanced durability and operational reliability, and is able to reduce the number of parts and has a more compact structure, compared to the conventional technique.