Rotatable Power Plug With Elastic Vibration Damping
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Solution Overview
Problem
Existing power plugs with fixed orientations between insertion terminals and electric wires can lead to mechanical stress, distortion, and jump sparks when the orientation needs to change, particularly with appliances requiring frequent reorientation, resulting in inefficient current transmission and potential short-circuiting.
Innovation Solution
A power plug design featuring a planar armature that displaces axially within a seat, with a coaxial turntable and elastic arch element to absorb mechanical vibrations, ensuring continuous contact between conducting slip rings and terminals, and elastic conducting probes to absorb gap jumps, allowing for smooth rotation and stable current flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the orientation between insertion terminals and electric wire is fixed, then the structure is simple and stable, but mechanical stress and distortion occur when reorientation is needed
Solution Approach 1:
The patent implements a rotatable turntable mechanism that allows the insertion terminals to rotate relative to the electric wire, transforming the fixed orientation into a dynamic, adjustable configuration. This enables the plug to adapt to different wiring orientations while maintaining proper electrical connection through the rotating interface.
Solution Approach 2:
The patent changes the orientation parameter of the insertion terminals relative to the electric wire by introducing a rotatable turntable. This allows the angular parameter to be adjusted freely, enabling the plug to accommodate different wiring directions without mechanical stress or distortion.
2Adaptability or versatility
If indirect conducting elements are used to enable rotation, then reorientation is possible, but contact imperfection causes jump sparks and energy loss
Solution Approach 1:
The patent introduces conducting slip rings as intermediary elements between the rotating turntable and the stationary body. These slip rings maintain continuous electrical contact during rotation, serving as a reliable mediator that eliminates jump sparks and energy loss while enabling rotational freedom.
Solution Approach 2:
The patent ensures continuous electrical contact through the conducting slip rings that maintain constant connection between the rotating turntable and the stationary body throughout the rotation process. This continuous contact prevents interruption of current flow, eliminating jump sparks and ensuring reliable electrical connection during reorientation.
3Reliability
If vibration damping elements are added, then jump sparks are prevented, but device complexity increases
Solution Approach 1:
The patent combines the vibration damping function with the conducting slip rings and turntable structure. The elastic conducting probes serve dual purposes: maintaining electrical contact and damping vibrations. This merging of functions prevents jump sparks without significantly increasing device complexity.
Solution Approach 2:
The patent changes the mechanical parameters of the conducting elements by introducing elasticity through spring-loaded probes and flexible slip rings. This parameter change allows the conducting elements to absorb vibrations and maintain stable contact without requiring separate damping components, thus preventing jump sparks while minimizing complexity increase.
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 free rotation of the plug and wire orientation, preventing jump sparks and ensuring efficient electric current transmission while maintaining mechanical stability, thus enhancing operational reliability and safety.
Implementation Method 1
an elastic arch element is provided between an interior of the seat and the armature to effectively absorb a mechanical vibration wave when the terminals rotate relatively to the armature
Implementation Method 2
an end of each terminal is provided with a conducting slip ring which contacts with and conducts the armature respectively
Implementation Method 3
plate-typed conducting probes with an elastic shear are indirectly provided between the insertion terminals and the armature. By an elastic stress action between the elastic arch element and the conducting probes, a mechanical vibration wave of motion can be absorbed to avoid gap jump
Data Source
AI summary
A power plug with a freely rotatable delivery point is disclosed, wherein a relative orientation between a delivery point element (e.g. an electric wire) and insertion terminals of the plug can change freely on a plane. A plug seat includes an armature which displaces axially. An open end of the seat is loosely connected with a turntable which is coaxial with the armature. The turntable is assembled with the insertion terminals which loosely contact with the armature by relative rotation. Between the seat and the armature, an elastic arch element is axially provided and parts of the insertion terminals relative to the armature are indirectly provided with plate-shaped conducting probes with an elastic shear. By the elastic arch element and the conducting probes, a mechanical vibration wave occurring during rotation of the turntable is absorbed, such that the armature can actually contact with the terminals to avoid jump sparks.