High Voltage Connector Guide Slot Locking Mechanism
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Solution Overview
Problem
Conventional high voltage connectors for electric vehicle chargers lack a guide mechanism, resulting in a gap between the outer flange and the connector, which prevents firm fixation and poses safety concerns during electrical connections.
Innovation Solution
The proposed high voltage connector features a housing body with guide slots and prop blocks, a shielding case with prop members, L-shaped conductive and signal terminals, and a seal ring, allowing the shielding case to slide and lock into place within the housing body, ensuring secure fixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the conventional high voltage connector uses a simple outer flange without guide mechanism, then the device complexity is reduced, but the fixation stability deteriorates due to gap formation between the outer flange and connector
Solution Approach 1:
The guide slots and prop blocks act as intermediary elements between the outer flange and the connector body. The guide slots provide a controlled path for the prop blocks, which in turn guide the shielding case during insertion. This intermediary mechanism ensures stable fixation by preventing gap formation while maintaining a relatively simple overall structure.
Solution Approach 2:
The fixation mechanism is segmented into distinct functional elements: guide slots formed on the outer flange, prop blocks positioned within the guide slots, and corresponding prop members on the shielding case. This segmentation allows each element to perform its specific function (guiding, limiting movement, providing friction) while collectively achieving stable fixation without excessive complexity.
2Ease of operation
If the shielding case is inserted without guide slots and prop blocks, then the ease of operation is improved, but the reliability deteriorates due to unstable connection and safety concerns
Solution Approach 1:
The guide slots and prop blocks are designed to automatically guide the shielding case during insertion without requiring manual alignment or additional fastening operations. The friction fit between the prop members and prop blocks provides self-locking functionality, ensuring reliable connection while maintaining ease of operation through a simple push-in action.
3Stability of the object's composition
If guide slots and prop blocks are added to the housing body, then the fixation stability is improved, but the device complexity increases due to additional structural components
Solution Approach 1:
The guide slots are formed directly on the outer flange of the housing body, merging the guiding function into an existing structural element. The prop blocks are integrated into the housing body's guide slots, and the prop members are part of the shielding case structure. This merging approach minimizes the number of separate components while achieving stable fixation.
Data Source
AI summary
A high voltage connector is disclosed. The high voltage connector principally consists of a housing body, a shielding case, a plurality of L-shaped conductive terminals, two L-shaped signal terminals, and a seal ring. The housing body is provided with a terminal accommodating body therein, and the shielding case is embedded in the housing body for covering the terminal accommodating body. Particularly, four guide slots are formed on a lateral side of the terminal accommodating body, four prop blocks are respectively formed in the four guide slots, and the shielding case is designed to have four prop members. In case of the shielding case being disposed to cover the terminal accommodating body, the four prop members slide in the four guide slots, and then are consequently stopped by the four prop blocks, thereby being fixed in the housing body.