Power Plug Cable Stability via Latch and Fastener
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Solution Overview
Problem
Current high-current and high-voltage power plugs with quick couplings pose safety concerns due to exposed cables and instability, as the thick cables with considerable weight can loosen easily without additional fixing means.
Innovation Solution
A power plug design featuring an electrical connector with wiring holes, an insulation sleeve, latch members with resilience arms, and fasteners with screws, which securely fasten the cables and electrical connector, providing stability and insulation through injection molding of the insulation sleeve.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If cables are connected to metal terminals and inserted in plastic shells, then the wiring method is simple, but safety concerns arise due to exposed cables
Solution Approach 1:
The patent applies nesting by placing the metal terminal and cable assembly inside the plastic shell, which is then inserted into the electrical connector housing. This nested structure encapsulates the exposed cable elements, maintaining the simple wiring method while eliminating safety hazards from exposed cables.
2Device complexity
If power plugs are fixed only by plastic shells during insertion, then the structure is simple, but the junction becomes unstable due to cable weight
Solution Approach 1:
The patent segments the fixing function into multiple independent components: the plastic shell provides initial positioning, the latch member provides mechanical locking, and the fastener provides additional securing. This segmentation allows each component to perform its specific function while collectively achieving stable junction fixation.
Solution Approach 2:
The latch member is pre-configured with a resilient arm and hook structure that automatically engages with the electrical connector housing during insertion. This preliminary action ensures that the cable weight is compensated for and the junction is stabilized before full insertion is complete.
3Power
If thick diameter cables are used for high current and high voltage, then the current carrying capacity is improved, but the cable weight increases and causes loosening
Solution Approach 1:
The latch member with its resilient arm and hook structure provides a mechanical counteracting force that opposes the downward pull of the heavy cable. The fastener with base and screw further anchors the assembly, creating a balanced system where the cable weight is compensated for, preventing loosening while maintaining high current capacity.
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 enhances safety and stability by securely fastening high-current and high-voltage cables, preventing loosening and ensuring reliable electrical connections while providing insulation against exposure.
Implementation Method 1
The latch member includes a resilience arm; one end of the resilience arm is connected to the side of the electrical connector and rest parts of the resilience arm are spaced from the side of the electrical connector, and a hook is formed at the other side of the resilience arm
Implementation Method 2
Each fastener includes a base and a screw penetrating the base, and the base is formed on the side of the electrical connector
Implementation Method 3
the insulation can also fix the bend of the cables
Data Source
AI summary
The present invention provides an electrical connector, cables, an insulation sleeve, a latch member, and a fastener. One end of the electrical connector is provided with a coupling portion, and wiring holes are defined on the other end of the electrical connector opposite to the coupling portion. The cables are inserted in the wiring holes respectively. The insulation sleeve covers the junction of the electrical connector and each of the cables, and the coupling portion protrudes out of the insulation sleeve. The latch member is disposed corresponding to one side of the electrical connector. The fastener is disposed corresponding to the other side of the electrical connector.