Connector Moving Plate Locking Arm Deflection Prevention
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Solution Overview
Problem
Existing connectors for high-voltage applications, such as hybrid and electric vehicles, face reliability issues in preventing electric shocks due to the failure of locking mechanisms at high temperatures, where the moving plate's locking hook remains deflected and cannot return to its original state, compromising the electric shock prevention structure.
Innovation Solution
A connector design featuring a housing with a mating connector receiving passageway and a moving plate with locking arms and insertion holes, where the raised portions within the housing prevent deflection of the locking arms, ensuring the moving plate remains effective in both mating and extraction states, even at high temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a moving plate with a locking hook is used to prevent electric shock, then electric shock prevention is achieved, but at high temperatures the locking hook remains deflected and cannot return to its original state, causing failure of the electric shock prevention function
Solution Approach 1:
The locking mechanism is divided into two independent parts: the locking hook (elastic member) and the locking protrusion (fixed member). The locking protrusion is formed separately on the housing, while the locking hook is formed separately on the moving plate. This segmentation allows the locking protrusion to serve as a stable reference that prevents the locking hook from remaining deflected at high temperatures, ensuring the moving plate can return to its original position and maintain electric shock prevention functionality.
2Stability of the object's composition
If the locking hook is constantly stressed to maintain locking state, then locking function is achieved, but the locking hook cannot return to original locking state at high temperatures, compromising reliability
Solution Approach 1:
The locking protrusion acts as an intermediary between the locking hook and the housing structure. When the moving plate is in the locked position, the locking protrusion abuts the locking hook, providing a stable reference point. This intermediary structure ensures that even when the locking hook is constantly stressed, it has a fixed reference (the locking protrusion) to return to, preventing permanent deformation and maintaining reliability at high temperatures.
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
The solution provides a highly reliable electric shock prevention structure by maintaining the moving plate's functionality across temperature variations, ensuring the terminal ends are safely retracted or extended, thus preventing accidental contact and electric shocks.
Implementation Method 1
The raised portion abuts the locking arm and prevents deflection of the locking arm when the moving plate is located out of the front position
Data Source
AI summary
A connector is disclosed. The connector has a housing, a terminal, and a moving plate. The housing has a mating connector receiving passageway and a raised portion formed inside the mating connector receiving passageway. The terminal is disposed in the housing and extends into the mating connector receiving passageway. The moving plate has a locking arm and an insertion hole into which the terminal is inserted. The moving plate is disposed in the mating connector receiving passageway and is movable between a front position in which a front end of the terminal is retracted inside the insertion hole and a rear position in which the terminal extends beyond the insertion hole. The raised portion abuts the locking arm and prevents deflection of the locking arm when the moving plate is located out of the front position.