Crosswise Contact Socket Structure to Prevent Misplug Shock
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Solution Overview
Problem
Traditional sockets pose significant safety hazards due to mis-contact issues, leading to electric shock injuries and short circuits.
Innovation Solution
The anti-misplug socket design features crosswise first and second conducting strips with movable contacts that engage only when a plug pin is fully inserted, maintaining an off state if only one plug pin is inserted, thereby preventing accidental contact and ensuring safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional sockets use simple fixed conducting strips connected to all jacks, then the structure is simple and easy to manufacture, but safety performance deteriorates due to mis-contact hazards and electric shock risks
Solution Approach 1:
The conducting strips are divided into multiple independent segments (first conducting strip with first movable contact, second conducting strip with second movable contact, third conducting strip with plug-in part). Each segment can be independently controlled to make or break contact, allowing the socket to selectively connect or disconnect individual jacks based on proper plug insertion, thereby improving safety while maintaining manufacturing feasibility.
2Adaptability or versatility
If all jacks are connected to power supply through fixed conducting strips, then power supply function is ensured, but safety deteriorates when conductive objects are inserted into wrong jacks
Solution Approach 1:
The socket employs movable contacts that remain separated by default and only make contact when the plug pin is properly inserted into the plug-in part. The first movable contact and second movable contact are positioned such that they only simultaneously contact their respective fixed contacts when the plug is correctly inserted, preventing harmful electric shock hazards before they can occur by blocking improper current paths in advance.
Solution Approach 2:
The movable contacts act as intermediaries between the power supply and the jacks. Instead of direct fixed connections, the movable contacts mediate the electrical connection, allowing current to flow only when properly activated by correct plug insertion. This intermediary mechanism ensures power supply function while preventing harmful effects from mis-insertion.
3Reliability
If movable contacts are added to control each jack independently, then safety performance is improved, but device complexity increases
Solution Approach 1:
The first movable contact and second movable contact are integrated onto the same first conducting strip structure, sharing common mounting and support elements. The plug-in part combines multiple functional elements (contact activation mechanism, positioning features) into a single integrated component. This merging approach reduces the number of separate parts and simplifies assembly while maintaining the safety functions.
Solution Approach 2:
The first conducting strip serves multiple functions: it provides the first movable contact for circuit connection, acts as a support structure for the second movable contact, and includes the plug-in part for plug insertion. The second conducting strip similarly provides the second movable contact and supports the first movable contact. This multi-functionality reduces the overall number of components needed while achieving the safety objectives.
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 effectively prevents electric shock and short-circuit hazards by maintaining a safe off state when only one plug pin is inserted, enhancing overall safety and reducing the risk of mis-contact incidents.
Implementation Method 1
a first elastic segment bent from one end of the connecting segment and a second elastic segment bent from the other end of the connecting segment
Data Source
AI summary
The invention relates to an anti-misplug socket, an electrical contact component of the anti-misplug socket comprises two first conducting strips, two second conducting strips and two third conducting strips, the two first conducting strips are arranged crosswise, a first movable contact and a second movable contact are arranged at one end of each first conducting strip, each second conducting strip is provided with a first fixed contact, each third conducting strip is provided with a second fixed contact and a plug-in part, the first movable contact and the second movable contact near one plug-in part are in respective contact with the corresponding first fixed contact and second fixed contact when only one plug pin is plugged into the plug-in part, and the first movable contact and the second movable contact near the other plug-in part respectively are spaced apart from the corresponding first fixed contact and second fixed contact.