Integrated Relay Unit with Built-in Resistor for Simplified Wiring
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Solution Overview
Problem
Conventional power-circuit breaking relay units require separate preparation and electrical connection of resistors, making the connection process cumbersome and reducing workability.
Innovation Solution
A relay unit design where a resistor, a first relay connected in series with the resistor, and a second relay connected in parallel with both, are accommodated in the same housing, eliminating the need for separate resistor connection and facilitating simplified electrical connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the resistor is separately prepared and electrically connected in conventional relay units, then the electrical connection function is achieved, but the connection work becomes troublesome and workability degrades
Solution Approach 1:
The patent combines the resistor and relay into a single integrated unit where the resistor is built-in within the relay housing. This merging eliminates the need for separate preparation and connection of the resistor, directly resolving the technical contradiction by reducing connection work complexity while maintaining the electrical circuit breaking function.
2Ease of operation
If multiple electronic components are accommodated in the same housing, then the connection process is simplified, but the housing size and profile may increase
Solution Approach 1:
The patent employs a nested structure where the resistor is positioned within the housing space, and the relay components are arranged around it in a compact configuration. This nesting approach allows multiple electronic components to coexist in the same housing without significantly increasing the overall volume, thus simplifying the connection process while controlling the housing size.
3Length of moving object
If the second relay is positioned with its winding shaft center along the opening, then the profile is reduced, but the internal space arrangement becomes more constrained
Solution Approach 1:
The patent repositions the second relay's winding shaft center to align with the opening direction, effectively utilizing the vertical dimension to reduce the profile height. This dimensional reconfiguration allows the relay components to be arranged in a compact vertical layout, achieving a low-profile design while managing internal space constraints through careful three-dimensional positioning.
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 simplifies the connection process, enhances workability, and results in a high-productivity, low-profile, and safe relay unit with improved insulating characteristics.
Implementation Method 1
a coil, a movable armature, and a contact are provided in the relay
Data Source
AI summary
A relay unit electrically opens and closes between a power supply and a power-consuming device. The relay unit includes electronic components in a housing including a case and a cover, the electronic components including a resistor, a first relay connected in series with the resistor, and a second relay, the second relay connecting the power supply and the power-consuming device through an external connection terminal and being connected in parallel with the resistor and the first relay.