Lock Structure for Electrical Connection Box Assembly
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Solution Overview
Problem
Conventional lock structures for assembly members do not effectively facilitate engagement between components during relative rotation, leading to potential misalignment and incomplete assembly in electrical connection boxes and wire harnesses.
Innovation Solution
A lock structure comprising a first engagement body with opposing wall parts and a second engagement body, both positioned orthogonally relative to a rotational axis, allowing for relative rotation and engagement between the components, with defined spaces enabling continued rotation until complete engagement is achieved, ensuring secure assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional lock structures are used for assembly members, then assembly can be maintained, but engagement between components during relative rotation is not effectively facilitated, leading to potential misalignment and incomplete assembly
Solution Approach 1:
The engagement body is divided into multiple functional elements: first and second opposing wall parts that define rotation spaces, engagement members for interlocking, and guide surfaces. This segmentation allows each component to perform its specific function during the relative rotation operation, ensuring smooth engagement without misalignment.
Solution Approach 2:
The first and second opposing wall parts act as intermediary elements that define spaces allowing controlled rotation of engagement members. These wall parts mediate between the rotating assembly members, guiding the engagement members through the rotation process until complete engagement is achieved, preventing misalignment.
2Volume of moving object
If engagement members are positioned close to the rotational axis for compact design, then device size is reduced, but the engagement operation cannot adapt to relative assembly operation during rotation
Solution Approach 1:
The engagement body utilizes spatial arrangement in multiple dimensions: opposing wall parts extend in directions orthogonal to the rotational axis, creating three-dimensional rotation spaces. This dimensional arrangement allows engagement members to rotate freely while maintaining compact overall size, adapting to the relative assembly operation during rotation.
Solution Approach 2:
The structure allows dynamic parameter changes during assembly: the engagement members can rotate through defined spaces, changing their angular position and orientation until engagement is complete. This parameter flexibility enables the engagement operation to adapt to the relative rotation between assembly members while maintaining a compact engagement body design.
Data Source
AI summary
A first engagement body is provided to one of two assembly members to be assembled with each other through a relative rotation operation pivoted about a relative rotational axis, and a second engagement body is provided to the other assembly member. The first engagement body includes a first and a second spaces, the first space being provided to allow rotation of a third opposing wall part of the second engagement body relative to the first engagement body, which is pivoted about the relative rotational axis until engagement between the first engagement member and a second engagement member of the second engagement body is completed, the second space being provided to allow rotation of a fourth opposing wall part of the second engagement body relative to the first engagement body, which is pivoted about the relative rotational axis until engagement of the first and the second engagement members is completed.