Electrical Connection Box Hinge Guide Mechanism
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Solution Overview
Problem
Existing electrical connection boxes face inefficiencies in assembly due to the lack of positioning guides, leading to difficulties in accurately aligning board cases, potential connector damage, and increased risk of defective assemblies.
Innovation Solution
An electrical connection box design featuring a body with a mounting surface and a mounting member with a shaft portion that includes a bearing portion with a receiving portion and a limiting portion, allowing for easy alignment and secure attachment through a hinge mechanism, preventing disengagement and connector interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If no guide means is provided for positioning board cases, then the structure remains simple, but it becomes very difficult to properly position board cases when combining them together, requiring careful operation and reducing assembly efficiency
Solution Approach 1:
A guide means comprising a guide groove and guide projection is introduced as an intermediary element between the board cases. The guide groove is formed in one board case and the guide projection in the other, allowing the board cases to be properly positioned during assembly without requiring careful manual operation, thus improving assembly efficiency while adding minimal structural complexity
Solution Approach 2:
The guide means is preliminarily formed in the board cases during manufacturing. The guide groove and guide projection are pre-configured to automatically guide the positioning of board cases when they are brought together, eliminating the need for complex positioning operations during assembly
2Reliability
If board cases are combined without proper positioning, then assembly operation is simpler, but connectors strike against each other causing deformation or damage
Solution Approach 1:
The guide means acts as an intermediary that automatically positions the board cases correctly as they are brought together. The guide groove and guide projection work together to prevent misalignment, ensuring connectors do not strike against each other during assembly, thus protecting connector integrity while maintaining ease of operation
Solution Approach 2:
The guide means provides preliminary anti-action by preventing incorrect positioning before connectors can make harmful contact. The guide groove and guide projection are designed to automatically correct or prevent misalignment, countering potential positioning errors before they can cause connector damage
3Ease of operation
If the insertion port is narrow without guide means, then the structure remains compact, but the insertion of the cover-side hook becomes difficult, reducing operation efficiency
Solution Approach 1:
The guide means with guide groove and guide projection serves as an intermediary that facilitates the insertion of the cover-side hook through the narrow insertion port. The guide structures automatically align the hook with the insertion port, making insertion easy despite the port's narrow dimensions, without requiring additional structural complexity
Solution Approach 2:
The guide groove and guide projection are preliminarily formed to automatically guide the cover-side hook during insertion. This preliminary guidance structure ensures smooth insertion through the narrow port without requiring the port itself to be enlarged or complicated
Data Source
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AI summary
An electrical connection box includes a body which includes a mounting surface and a mounting member, including a shaft portion, attached to the body. The body includes a bearing portion which receives the shaft portion rotatably. The bearing portion has a receiving portion which receives the shaft portion, a limiting portion provided at a position separate from the mounting surface for a predetermined distance, and an insertion port, having a length of the predetermined distance defined by the mounting surface and the limiting portion, through which the shaft portion is inserted into the receiving portion. The limiting portion limits a movement of the shaft portion in a direction parallel to the mounting surface based on an inclining condition of the mounting member.