Switch Wire Connection Device With Restriction Unit
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Solution Overview
Problem
Conventional switch wire connection devices face challenges with complex structures, increased manufacturing costs, and miniaturization issues due to guide channels and guide ribs, as well as operational difficulties such as loosening screws and complicated assembly processes, especially in environments with vibration.
Innovation Solution
A redesigned switch wire connection device featuring a simplified structure with a restriction unit and contact plate integrated with a metal leaf spring, allowing direct plugging of conductive wires without tools, enhanced rigidity, and improved stability, where the metal leaf spring is restricted to prevent deflection and ensure secure electrical contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If guide channels and guide ribs are added to the insulation case and electrical contact, then the screw positioning and wire locking reliability is improved, but the device structure becomes more complicated and the manufacturing cost increases
Solution Approach 1:
The patent removes the guide channels and guide ribs from the insulation case and electrical contact structure. Instead, it uses a spring-loaded electrical contact with inherent elasticity to provide guiding and positioning functions, thereby simplifying the overall structure while maintaining reliability
Solution Approach 2:
The electrical contact is designed to perform multiple functions: electrical conduction, mechanical guiding, and positioning. The spring-loaded structure provides both the guiding function (through its movement path) and the positioning function (through its elastic force), eliminating the need for separate guide channels and guide ribs
2Reliability
If guide channels and guide ribs are added to the insulation case and electrical contact, then the screw positioning and wire locking reliability is improved, but the volume of the case is enlarged
Solution Approach 1:
The patent eliminates the need for additional guiding structures that would increase case volume. The spring-loaded electrical contact itself provides the necessary guidance and positioning within the existing case space, avoiding volume enlargement
3Reliability
If a screw mechanism is used to lock the conductive wire, then the electrical connection reliability is improved, but the ease of operation deteriorates due to tool requirement and alignment difficulty
Solution Approach 1:
The spring-loaded electrical contact automatically performs the connection function when the wire is inserted. The elastic force of the spring provides self-latching action, eliminating the need for external tools or complex alignment procedures required by screw mechanisms
Solution Approach 2:
The patent replaces the screw mechanism (threaded fastening system) with a spring-loaded elastic contact system. This substitution maintains reliable electrical connection through elastic force while dramatically improving ease of operation by eliminating tool requirements and alignment difficulties
4Volume of stationary object
If the switch wire connection device is miniaturized, then the device compactness is improved, but the stability of the metal leaf spring deteriorates due to increased deflection
Solution Approach 1:
The patent combines the restriction unit with the electrical contact structure, creating an integrated component that provides both mechanical restriction and electrical contact functions. This merging allows for compact design while maintaining spring stability through the constrained movement path provided by the integrated structure
Solution Approach 2:
The patent introduces a restriction unit that dynamically guides the metal leaf spring's movement. The restriction unit allows the spring to flex within a controlled path, maintaining stability even in miniaturized configurations by preventing excessive deflection while preserving the spring's essential elastic functionality
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 a stable, easy-to-operate switch wire connection device that maintains secure electrical contact without tools, reduces manufacturing complexity, and enhances miniaturization without increasing the device's volume, addressing the shortcomings of conventional designs.
Implementation Method 1
a metal leaf spring (70) assembled in the restriction unit (50)
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A switch wire connection device has a simplified structure and is easy to operate with enhanced stability of operation. The switch wire connection device includes a conductive component (30) mounted in an insulation case (10), a switch pushbutton (20) assembled with the conductive component (30) and an electrical contact (40). The electrical contact (40) has a restriction unit (50) and a contact plate (60) connected with the restriction unit (50). By means of operating the pushbutton (20), the conductive component (30) is driven to selectively electrically contact or separate from the contact plate (60). The restriction unit (50) defines a space (55), in which a metal leaf spring (70) is assembled. The wiring circuit or conductive wire (90) of a machine or equipment can be easily directly plugged into the space (55) of the restriction unit (50) and held by the metal leaf spring (70). The metal leaf spring (70) is prevented from deflecting in the operation process.