Electric Wire Positioning Member for Attachment Plug Downsizing
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Solution Overview
Problem
Conventional power plugs face challenges in downsizing due to exposed inner wires, which compromise protection and aesthetics, and make it difficult to connect wires effectively when the extra length is short, affecting working efficiency.
Innovation Solution
An electric wire positioning member with first and second positioning restriction parts to hold exposed wire roots and tip ends, respectively, ensuring correct alignment with terminal blocks, and a protruding portion for engagement with a body block, preventing the sheath from inserting beyond a predetermined position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the extra length of inner wires is accommodated in the external cover, then the inner wires are protected and covered, but the external cover enlarges in size
Solution Approach 1:
The patent extracts the wire positioning function from the external cover by introducing a separate positioning member. This positioning member is specifically designed to hold the extra length of inner wires, allowing the external cover to be downsized while still providing necessary wire protection and management. The positioning member acts as an independent component that solves the wire accommodation problem without increasing the main cover volume.
Solution Approach 2:
The patent segments the wire management system into distinct functional components: the external cover for protection, a positioning member for holding extra wire length, and connection terminals for electrical connection. This segmentation allows each component to be optimized independently, with the positioning member specifically addressing the wire extra length issue without requiring the external cover to be enlarged.
2Volume of stationary object
If the extra length of inner wires is disposed outside the external cover, then the power plug is downsized, but the inner wires are exposed and protection becomes insufficient
Solution Approach 1:
The patent introduces a positioning member as an intermediary component between the external cover and the inner wires. This positioning member provides the necessary protection and support for the extra length of inner wires, allowing them to be disposed outside the external cover for downsizing purposes while still maintaining adequate protection through the positioning member's structure.
3Volume of stationary object
If the extra length of inner wires is shortened for downsizing, then the power plug size is reduced, but it becomes difficult to connect inner wires to corresponding connecting terminals
Solution Approach 1:
The positioning member performs preliminary action by pre-positioning the extra length of inner wires in alignment with the corresponding connecting terminals. This preliminary positioning ensures that when the wire connection process begins, the wires are already in the correct position, eliminating the need for manual alignment and making the connection process efficient even with shortened wire extra length.
Solution Approach 2:
The positioning member acts as an intermediary that facilitates the connection process between the inner wires and connecting terminals. It provides the necessary guidance and positioning, ensuring that even with minimal wire extra length, the wires can be effectively connected to the corresponding terminals without compromising working efficiency.
4Volume of stationary object
If the inner wires are exposed outside the external cover, then the power plug is downsized, but the external appearance deteriorates
Solution Approach 1:
The patent extracts the aesthetic and protective function from the external cover by introducing a dedicated positioning member. This positioning member is specifically designed to neatly accommodate and present the extra length of inner wires, allowing the external cover to be minimized for downsizing while the positioning member maintains a clean, organized appearance for the exposed wires.
Data Source
AI summary
An attachment plug includes: a plurality of plug pins; a plurality of screw terminal blocks electrically connected to the corresponding plug pins, respectively; a body block accommodated within a shell for holding the screw terminal blocks; and an electric wire positioning member for holding the electric cords included in a multi-core cable introduced into the shell from outside in the state where the electric cords are positioned to correspond to the respective screw terminal blocks. The electric wire positioning member includes a plurality of hooking pieces for holding the electric cords exposed outside by stripping a sheath of the multi-core cable in the state where the electric cord are positioned to correspond to the respective screw terminal blocks.