Service Plug Terminal Current Capacity Adjustment
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Solution Overview
Problem
Current service plugs face challenges in easily adjusting their current-carrying capacity to accommodate varying current values across different vehicles, leading to increased manufacturing costs due to the need for thicker or additional terminal components.
Innovation Solution
A service plug design featuring a connection terminal part with interlinking plates that can be easily added or removed to adjust current-carrying capacity, where interlinking plates are attached removably to the terminals, allowing for increased or decreased capacity as needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If plate-like terminal components are made thicker or additional components are provided to increase current-carrying capacity, then the current-carrying capacity is improved, but the manufacturing cost increases
Solution Approach 1:
The service plug is divided into separable components: a housing containing male terminals and a separate connector containing female terminals. This segmentation allows the current-carrying capacity to be adjusted by selecting different connector configurations without redesigning the entire plug, thereby reducing manufacturing costs while maintaining reliability.
Solution Approach 2:
The service plug incorporates a rotatable lever mechanism that dynamically changes the connection state between male and female terminals. The lever can rotate between a locked position (connecting terminals for normal operation) and an unlocked position (disconnecting terminals for maintenance), providing dynamic adaptability without requiring multiple static components.
2Reliability
If plate-like terminal components are made thicker or additional components are provided to accommodate higher current values, then the current-carrying capacity is improved, but the device complexity increases
Solution Approach 1:
The housing with male terminals serves multiple functions: it provides structural support, contains the terminal connection mechanism, and interfaces with different connector types. This multi-functionality reduces the need for additional specialized components, thereby accommodating various current requirements without increasing device complexity.
Solution Approach 2:
The female terminals are nested within the connector housing, which itself is nested within the overall service plug assembly. This nested structure allows for compact design where multiple functional elements are integrated into each other, reducing overall device complexity while maintaining the ability to handle different current values.
3Reliability
If the service plug uses a fixed configuration with thicker terminal components, then the current-carrying capacity is improved, but the adaptability to different current values decreases
Solution Approach 1:
Different regions of the service plug are designed with different properties: the housing provides structural integrity, the male terminals provide connection points, and the removable connector contains the female terminals. This local differentiation allows the connector portion to be customized for different current requirements while the main housing remains standardized, improving adaptability without sacrificing reliability.
Data Source
AI summary
This service plug (1) has a connection terminal part (49), and the connection terminal part (49) has a pair of terminals (8) and an interlinking part (9) that is tailored to the spacing between the terminals (8) and joins the terminals (8) together. By removing the connection terminal part (49) from a power-supply circuit, the power-supply circuit is interrupted. The interlinking part (9) includes one or more thin interlinking plates (20) that are removably attached to the connection terminal part (49).