Bus Bar Connector Structure With Replaceable Fuse Access
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Solution Overview
Problem
Traditional bus bar connectors in server chassis face challenges with large fuses that require a large fuse holder, which is impractical due to limited space, and replacing soldered fuse elements is complicated and time-consuming.
Innovation Solution
A bus bar connector design with a replaceable fuse that includes a casing, terminal assemblies, and cable assemblies, allowing fuse elements to be positioned in accommodating portions, enabling easy replacement without disassembling the server device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional fuses suitable for high current are used, then the circuit protection function is achieved, but the fuse holder becomes large in size which cannot be installed inside the server chassis
Solution Approach 1:
The fuse holder is divided into a fixed portion (integrated into the connector housing) and a movable portion (containing the fuse element), allowing the fuse to be replaced without replacing the entire large fuse holder structure
Solution Approach 2:
The fuse element is nested within the movable portion of the fuse holder, which itself is nested within the connector assembly, enabling compact integration while maintaining circuit protection functionality
2Reliability
If fuse elements are soldered on the motherboard for circuit protection, then the protection function is realized, but the replacement process becomes complicated and time-consuming requiring disassembly of external mechanisms
Solution Approach 1:
The fuse element is extracted from the motherboard and relocated to the connector assembly, allowing it to be replaced independently without removing the motherboard or disassembling external mechanisms
Solution Approach 2:
The fuse holder incorporates a movable portion that can be easily opened and closed, enabling dynamic access to the fuse element for quick replacement without permanent installation
3Ease of operation
If a larger fuse holder is used to accommodate high current fuses, then the fuse can be replaced more easily, but the server chassis interior space becomes insufficient
Solution Approach 1:
The fuse holder is segmented into fixed and movable portions, allowing the replacement mechanism to be compact while maintaining ease of operation through the movable component design
Solution Approach 2:
The fuse holder structure is merged with the connector housing, integrating multiple functions into a single compact assembly that saves space while preserving replaceability
Data Source
AI summary
A bus bar connector with a replaceable fuse are provided. A first terminal assembly inside the casing includes a first connecting element and plural first resilient contacts electrically connected with the first connecting element. A second terminal assembly inside the casing includes a second connecting element and plural second resilient contacts. An end of the second connecting element is electrically connected with the plural second resilient contacts, and another end of the second connecting element extends to form a cable connecting portion. The first cable assembly includes a first cable body extending from at least one of the left and right sides of the casing, and a cable connection portion connected to one side of the first cable body. The fuse element is connected in series between the cable connection portion and the first connecting element. The second cable assembly is electrically connected to the cable connecting portion.