Fuse Holder Segmentation and Blocking Mechanism
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Solution Overview
Problem
Existing fuse holders in electrical circuits face challenges with accessibility and safety when replacing fuses, especially in poorly located fuse boxes, as they require safe disconnection from live power lines and often lack space for easy handling of large fuses, leading to compromised access and potential electrical hazards.
Innovation Solution
A fuse holder design featuring a toggle switch with a blocking device that ensures electrical isolation before fuse removal, allowing for safe handling and minimizing the size of the fuse holder by enabling the fuse carrier to be separable along its longitudinal axis, and incorporating an indicating module for faulty fuses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the fuse box is minimized in size to improve space efficiency, then the device complexity is reduced, but accessibility for fuse replacement becomes difficult
Solution Approach 1:
The fuse holder is divided into a stationary body and a removable carrier that can be extracted from the body. This segmentation allows the carrier with the fuse to be removed and replaced independently, improving accessibility while maintaining a compact overall fuse box design.
2Ease of operation
If the toggle switch is allowed to engage without blocking to improve ease of operation, then fuse replacement becomes simpler, but electrical safety is compromised when fuse carrier is absent
Solution Approach 1:
A blocking device is incorporated that prevents the toggle switch from engaging in the closed position when the fuse carrier is absent. This preliminary prevention mechanism eliminates the possibility of electrical hazards before they can occur, while still allowing normal operation when the carrier is properly installed.
3Object-affected harmful factors
If the fuse holder requires manual disconnection before fuse removal to improve safety, then electrical hazards are reduced, but the operation becomes more complex and time-consuming
Solution Approach 1:
The blocking device automatically performs the disconnection action by preventing the toggle switch from engaging when the fuse carrier is removed. This preliminary automatic action eliminates the need for manual disconnection procedures, maintaining safety while simplifying the operation.
4Ease of operation
If the fuse carrier is made separable to improve accessibility and reduce size, then ease of operation and device compactness are improved, but the device complexity increases due to additional components
Solution Approach 1:
The fuse holder is segmented into a stationary body and a removable carrier, allowing the carrier to be extracted and replaced independently. This segmentation improves accessibility and enables a compact design while the integration of the blocking device into the existing structure minimizes additional complexity.
Data Source
AI summary
A fuse holder for holding a fuse is provided. The fuse holder includes a body, a line side connector supported by the body, and a load side connector supported by the body. The fuse holder also includes a fuse carrier supported by the body. The fuse carrier is adapted for holding the fuse and the fuse carrier is adapted to be removed from the fuse holder. The fuse carrier defines a longitudinal axis thereof. The fuse carrier is separable from the body in a direction along the longitudinal axis of the fuse carrier.