Fuse Strip Lateral Outlet Contacts Screwless Connection
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Solution Overview
Problem
Conventional fuse strips require screws for connecting outgoing lines, which complicates the design and increases the length and complexity of the safety strip, necessitating additional insulation and line paths.
Innovation Solution
A bridge-shaped fuse strip with lateral outgoing contacts and clamping springs allows for screwless connection of outgoing lines, eliminating the need for front-side connection terminals and reducing the strip's length and complexity, while optional adapter strips can convert the fuse strip to have face-side connection terminals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional fuse strips use front-side connection terminals with screws for connecting outgoing lines, then reliable electrical connection is achieved, but the strip length increases and design complexity increases
Solution Approach 1:
The patent moves the connection function from the front side (longitudinal direction) to the lateral sides (transverse direction) of the fuse strip. By positioning outgoing contacts on the lateral sides and allowing outgoing lines to connect directly at these side positions, the need for long front-side connection terminals is eliminated, thereby reducing strip length while maintaining connection reliability
Solution Approach 2:
The patent extracts the connection function from the traditional screw terminal structure and implements it through lateral outgoing contacts with direct connection capability. This removes the need for screws and associated insulation structures, simplifying the design and reducing the overall strip length
2Reliability
If conventional fuse strips include front-side connection terminals and insulation structures, then proper electrical insulation is achieved, but the number of components and assembly complexity increases
Solution Approach 1:
The patent merges the outgoing contact function with the housing structure itself. The lateral outgoing contacts are integrated into the housing sides, eliminating the need for separate front-side connection terminals and associated insulation ribs, thereby reducing component count while maintaining insulation reliability
Solution Approach 2:
The patent removes the complex insulation rib structures that would be needed for front-side connection terminals. By using lateral outgoing contacts, the insulation requirements are simplified and integrated directly into the housing design, reducing the number of separate insulation components
3Reliability
If screw terminals are used for connecting outgoing lines, then secure electrical connection is achieved, but installation time increases and ease of operation decreases
Solution Approach 1:
The lateral outgoing contacts are designed to enable direct connection of outgoing lines without requiring screws or additional fastening operations. The connection structure allows the outgoing lines to be directly attached to the lateral sides, making the installation process simpler and faster while maintaining secure electrical connection
Solution Approach 2:
Instead of requiring outgoing lines to connect to front-side terminals through a complex screwing process, the patent inverts the approach by allowing direct connection at the lateral sides. This reverses the traditional connection sequence and methodology, simplifying the installation operation
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 design enables a more compact, user-friendly fuse strip with simplified assembly and insulation, allowing for direct and secure connection of outgoing lines without screws, and the ability to adapt for face-side terminals if needed.
Implementation Method 1
The outgoing contacts are equipped with clamping springs
Data Source
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AI summary
The strip has a housing (1) made of plastic, and two retaining devices for safety fuse units that are arranged in the housing. Clamping bases are provided at a lower side of the housing, and contact units are designed for contacting conductor lines with the clamping bases. Laterally formed terminal blocks have terminals that are provided lateral to the housing in a region of the clamping bases. The terminal blocks respectively contain outlet contacts that are formed lateral to the fuse strip for connecting outlet lines.