Substrate Surface-Mounted Fuse With Replaceable Terminal Attachment
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Solution Overview
Problem
Conventional substrate surface-mounted fuses require replacement of the entire substrate when the fuse part melts, causing an interruption in the electric circuit and disrupting the functioning of electrical components in vehicles until a new substrate is installed.
Innovation Solution
A substrate surface-mounted fuse design that includes a housing with a fuse part and terminal parts, where the terminal parts have an attachment mechanism for a replacement fuse, allowing for immediate electrical connection and restoration of the circuit by attaching a replacement fuse without needing to replace the substrate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the substrate surface-mounted fuse is fixed to the substrate surface using solder, then the fuse can be securely mounted and electrically connected, but when the fuse part melts, the entire substrate must be replaced causing circuit interruption
Solution Approach 1:
The invention divides the fuse assembly into separable components: the substrate-mounted base unit and the replaceable fuse unit. The fuse part is positioned on the substrate surface and electrically connected through terminal parts, allowing the fuse to be replaced independently without removing the entire substrate or disrupting other mounted components.
Solution Approach 2:
The invention introduces a dynamic replacement mechanism where the fuse can be easily removed and replaced on the substrate surface. The terminal parts are designed to accommodate connection and disconnection of the fuse, enabling quick restoration of electrical circuits after fuse failure without permanent substrate damage.
2Reliability
If the substrate is replaced when the fuse melts, then the electric circuit can be restored, but the process is time-consuming and causes prolonged interruption
Solution Approach 1:
The substrate is pre-prepared with terminal parts and mounting structures that anticipate future fuse replacement needs. The terminal parts are positioned and configured in advance to receive the fuse, enabling immediate replacement without requiring substrate removal, drilling, or complex reassembly procedures.
3Ease of manufacture
If the fuse is mounted on the substrate surface, then the fuse box and substrate can be miniaturized and manufacturing simplified, but the fuse cannot be easily replaced without substrate replacement
Solution Approach 1:
The terminal parts serve multiple functions: providing electrical connection points for the fuse during normal operation and serving as attachment points for easy fuse replacement. The substrate surface mounting structure universally supports both miniaturization goals and future maintenance needs through its design.
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
Enables quick and simple restoration of the electric circuit and components by allowing a replacement fuse to be easily attached to the terminal parts, preventing circuit interruption and facilitating rapid recovery of vehicle electrical systems.
Implementation Method 1
when an unintended overcurrent flows in an electric circuit, a fuse part of a fuse element built into the fuse melts under the heat generated by the overcurrent
Implementation Method 2
a fuse part of a fuse element built into the fuse melts under the heat generated by the overcurrent
Data Source
AI summary
The present invention provides a substrate surface-mounted fuse that uses a replacement fuse to enable an electric circuit to be electrically connected simply and immediately even when a fuse part melts.A substrate surface-mounted fuse 100 mounted on the surface of a substrate 300 comprises: a housing 110; a fuse part 120 that is disposed in the housing 110; and a terminal part 130 that is coupled to both ends of the fuse part 120 and exposed to the outside of the housing 110, wherein a portion of the terminal part 130 is provided with a fixed section 134 for fixing to the surface of the substrate 300 and is provided with an attachment part 140 enabling attachment of a terminal part 230 of a replacement fuse 200.