Modular Resolver Terminal for Vehicle Motor Repair
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Solution Overview
Problem
Conventional electric driving motor resolvers have complex manufacturing and repair processes due to integrated terminal structures, making it difficult to diagnose and address malfunctions, and require additional coupling processes that increase costs.
Innovation Solution
A modularized terminal structure for electric driving motor resolvers, featuring a detachable connector module with a sealant applied to protect the terminal end, allowing for easy identification and repair of issues without additional coupling processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the terminal structure is integrated with the coil protecting cover, then the structural strength is improved, but the ease of repair deteriorates
Solution Approach 1:
The patent divides the terminal structure into separate modules: the terminal pin, the coil protecting cover, and the swelling part are distinct components that can be independently replaced. This segmentation allows the terminal pin to be replaced without removing the coil protecting cover, improving ease of repair while maintaining structural integrity through designed connection interfaces.
2Manufacturing precision
If the swelling part is integrally formed with the coil protecting cover, then the manufacturing precision is improved, but the ease of operation deteriorates
Solution Approach 1:
The swelling part is separated from the coil protecting cover as an independent component. The coil protecting cover includes a swelling part receiving space that accommodates the swelling part, allowing the terminal pin to be accessed and replaced without disassembling the coil protecting cover, thus improving ease of operation.
Solution Approach 2:
The swelling part is received within the swelling part receiving space of the coil protecting cover, creating a nested structure. This allows the swelling part to be positioned and secured within the cover while maintaining independent replaceability, balancing manufacturing precision with operational ease.
3Strength
If the terminal pin and protrusion are supported together by the undercover and plastic member, then the structural strength is improved, but the device complexity increases
Solution Approach 1:
The terminal pin is extracted as a separate replaceable component from the integrated structure. The undercover and plastic member continue to provide support, but the terminal pin can now be independently removed and replaced without replacing the entire assembly, reducing device complexity and improving maintainability.
4Reliability
If the protrusion is covered by the swelling part, then the protection of the terminal function is improved, but the difficulty of detecting and measuring increases
Solution Approach 1:
The swelling part is designed to be removable or accessible while maintaining protection during normal operation. This allows continuous protection of the terminal function during operation, while enabling easy access for inspection and diagnosis when needed, eliminating the need to disassemble the entire coil protecting cover.
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
Simplifies manufacturing and repair processes, reduces costs, and ensures stable contact between the coil and terminal end through a simple structure, enabling easy replacement of faulty modules and direct visualization of terminal end states.
Implementation Method 1
a sealant applied to the connector main body to cover and protect the exposed terminal end
Data Source
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AI summary
The present invention relates to a resolver of an electric driving motor for vehicle which comprises a rotor, a stator comprising a stator main body which encircles the rotor and teeth which extend from the stator main body to be wound by a coil, a terminal module comprising a terminal end which contacts the coil for an electric connection and a terminal main body which supports the terminal end, and a connector module comprising a connector main body which is detachably coupled to the terminal main body and a lead line which is connected to an outer device and supported by the connector main body and which contacts the terminal end for an electric connection if the connector main body is coupled to the terminal main body, thus simplifying manufacturing process and repairing process and reducing cost.