Telescopic Adapter Plug Linkage for Shorter Pin Extension Stroke
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Solution Overview
Problem
Existing power adapter plugs require a large space due to the need for two stages of stroke to extend plug pins, hindering miniaturization.
Innovation Solution
A telescopic structure with a plug sleeve and plug pin assembly, utilizing a fixing rod, first rocker, and second rocker hingedly connected, where the included angle between rockers increases to enable two stages of displacement with one stage of push tab stroke, facilitated by a driving chute and driving protrusion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the push tab is designed to complete two stages of stroke to extend plug pins, then the plug pins can be properly extended for use, but the plug requires large space and volume
Solution Approach 1:
The plug pin assembly is nested within the plug sleeve, which is in turn nested within the housing. The plug pins are stored inside the plug sleeve when retracted, and the plug sleeve is received within the housing. This nested arrangement allows the two-stage stroke function to be achieved within a compact volume, resolving the contradiction between operational functionality and compact size.
Solution Approach 2:
The patent transforms the linear two-stage stroke motion into a rotational mechanism using rockers. The push tab connects to the first rocker, which connects to the second rocker, creating a multi-dimensional motion path. This dimensional transformation allows the plug pins to be extended with a shorter linear stroke of the push tab, reducing the required space.
2Ease of operation
If a large position and space is reserved on the plug for the push tab to complete two stages of stroke, then the two-stage stroke can be completed, but the product miniaturization is hindered
Solution Approach 1:
The patent employs dynamic rockers instead of fixed linear guides to achieve the two-stage stroke. The first rocker and second rocker are hinged connections that can rotate, providing dynamic motion paths. This dynamic mechanism allows the push tab to achieve two-stage displacement with a shorter stroke distance, reducing the space required for push tab movement while maintaining the functional requirement.
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 structure achieves a compact design by reducing the required push tab stroke and minimizing the overall product volume.
Implementation Method 1
the driving protrusion can be slidably mounted on the driving chute; when the plug sleeve slides out of the housing, the driving protrusion slides from a first end of the driving chute to a second end of the driving chute, an included angle between the first rocker and the second rocker increases
Implementation Method 2
a fixing rod, a first rocker and a second rocker hingedly connected successively, where one end of the fixing rod away from the first rocker is fixed to the housing, and one end of the second rocker away from the first rocker is hingedly connected to the plug pin assembly
Data Source
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AI summary
A telescopic structure of a power adapter plug is disclosed, which includes a housing, a push tab, a plug sleeve and a plug pin assembly, the plug sleeve being slidably mounted to the housing in a Z-axis direction, and the push tab being mounted to the plug sleeve; and further includes a fixing rod, a first rocker and a second rocker hingedly connected successively, where one end of the fixing rod away from the first rocker is fixed to the housing, and one end of the second rocker away from the first rocker is hingedly connected to the plug pin assembly, and the plug sleeve is provided with a driving chute; one end of the first rocker away from the fixing rod is provided with a driving protrusion, and the driving protrusion can be slidably mounted on the driving chute; by pushing the push tab to move so as to make the plug sleeve extend out of the housing, and at the same time, the driving chute on the plug sleeve cooperates with the driving protrusion on the first rocker, so that an included angle between the first rocker and the second rocker increases, thereby enabling the plug pin assembly to generate two stages of displacement while the plug sleeve moves, and the stroke of the push tab can be set to be shorter, so as to reduce the proportion of space when the push tab moves.