Electric Oil Pump Terminal Support for Reliable Stator Connections
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Solution Overview
Problem
The existing electric oil pumps face issues with deformation of the connecting terminal when connected to the stator assembly and electric control board, leading to unreliable connections and potential performance degradation.
Innovation Solution
The electric oil pump design incorporates a supporting member with a main body portion and connecting terminal that is fitted tightly or fixed via injection molding, providing circumferential support to the connecting terminal, thereby reducing deformation and enhancing the reliability of connections between the stator assembly and electric control board.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the connecting terminal is connected to the stator assembly and electric control board without sufficient support, then the device complexity is reduced, but the connecting terminal deforms leading to unreliable connections
Solution Approach 1:
A supporting member is introduced as an intermediary component between the stator assembly and electric control board. This supporting member provides structural support to the connecting terminal, preventing deformation while maintaining reliable electrical connections. The supporting member acts as a mediator that solves the connection reliability issue without significantly increasing overall device complexity.
2Reliability
If the connecting terminal is made more rigid to prevent deformation, then the connection reliability improves, but the manufacturing difficulty increases
Solution Approach 1:
The connecting terminal system is segmented into multiple components: the connecting terminal itself and a separate supporting member. This segmentation allows the connecting terminal to maintain its electrical function while the supporting member provides the necessary structural rigidity. The separation simplifies manufacturing as each component can be produced and assembled independently.
3Reliability
If the connecting terminal is supported circumferentially to reduce deformation, then the connection reliability improves, but the device complexity increases
Solution Approach 1:
The supporting member is designed to be integrally formed with the stator assembly, merging two functions into a single component. The supporting member both supports the connecting terminal circumferentially and serves as part of the stator assembly structure. This merging reduces overall device complexity while achieving the desired connection reliability.
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 effectively reduces deformation of the connecting terminal and improves the reliability of connections, ensuring stable operation and easier maintenance of the electric oil pump.
Implementation Method 1
the main portion is disposed between the first connecting portion and the second connecting portion, and at least partially fitted tightly with the main body portion or at least partially fixed with the main body portion by injection molding
Data Source
AI summary
Related is an electric oil pump, and the electric oil pump includes a pump housing having an inner pump cavity, where the inner pump cavity includes a first cavity and a second cavity; a first rotor assembly disposed in the first cavity; a stator assembly and a second rotor assembly that are disposed in the second cavity; an electric control board; a supporting member at least partially disposed between the stator assembly and the electric control board; and a connecting terminal. The electric oil pump can reduce deformation of the connecting terminal when the connecting terminal is respectively connected to the stator assembly and the electric control board.