Relay With Integrated Fuse And Insulating Plate
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Solution Overview
Problem
Relays in existing technologies lack overload protection, arc-extinguishing functions, and have poor internal insulating capabilities, leading to potential damage and short service life, requiring additional protection components that increase electrical component usage and installation space.
Innovation Solution
A relay design incorporating an insulating housing, binding posts, an insulating plate with connecting contacts, a fuse for overload protection, and a push rod for switching, along with arc-extinguishing gas and grids to enhance reliability and security, reducing the number of electrical elements and installation space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a copper plate is used for electrical connection in the relay, then electrical connection is achieved, but overload protection function is lost and component damage risk increases
Solution Approach 1:
The fuse is integrated directly into the relay structure, combining the switching function and overload protection function into a single device. The fuse body is disposed within the insulating housing and electrically connected between the binding posts, eliminating the need for separate protection apparatus while maintaining both relay and fuse functions.
Solution Approach 2:
The relay device now serves multiple functions: it acts as both a switching device and an overload protection device. The fuse element is incorporated into the relay's electrical path, allowing the same component to perform both circuit switching and current protection functions simultaneously.
2Reliability
If additional protection apparatus such as individual fuse apparatus is applied in the peripheral circuit, then overload protection is achieved, but the amount of electrical components and installation space increases
Solution Approach 1:
The fuse is integrated directly into the relay structure, combining the switching function and overload protection function into a single device. The fuse body is disposed within the insulating housing and electrically connected between the binding posts, eliminating the need for separate protection apparatus while maintaining both relay and fuse functions.
3Reliability
If additional protection apparatus is applied in the peripheral circuit, then overload protection is achieved, but installation space increases
Solution Approach 1:
The fuse is integrated directly into the relay structure, combining the switching function and overload protection function into a single device. The fuse body is disposed within the insulating housing and electrically connected between the binding posts, eliminating the need for separate protection apparatus while maintaining both relay and fuse functions.
4Reliability
If the relay lacks arc-extinguishing function and internal insulating capability, then structure remains simple, but damage or breakdown occurs easily and service life shortens
Solution Approach 1:
An insulating plate is introduced as an intermediary component between the binding posts and the fuse body. This insulating plate provides internal insulation and arc-extinguishing capability, preventing direct arcing between binding posts while maintaining the overall structural simplicity of the relay device.
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 solution provides reliable electrical connections with overload protection, extends the service life of electrical devices, and reduces the number of components and installation space needed, while improving system security and reliability.
Implementation Method 1
the fuse is disposed between the two connecting contacts, and two ends of the fuse are electrically connected to the two connecting contacts respectively... can an overload protection function on the external circuit be realized, so as to prevent an electrical device of the external circuit form being burnt and damaged when a current therein is extremely high
Implementation Method 2
along with arc-extinguishing gas and grids to enhance reliability and security
Data Source
AI summary
A relay (100) is provided. The relay (100) includes an insulating housing (10) defining an accommodating cavity (11) therein; two binding posts (12) disposed to the insulating housing (10), each having an end extending into the accommodating cavity (11); an insulating plate (20) disposed within the accommodating cavity (11), movable between a first position and a second position, and having two connecting contacts (21) disposed on a first side of the insulating plate (20) facing the binding posts (12); a fuse (30) disposed between the two connecting contacts (21); a mounting base (40) connected to the insulating housing (10); and a push rod (41) movably disposed to the mounting base (40) and connected to the insulating plate (20), in which when the insulating plate (20) is located at the first position, the two connecting contacts (21) abut against the two binding posts (12) respectively, and when the insulating plate (20) is located at the second position, the two connecting contacts (21) detach from the two binding posts (12) respectively.