Safety Shutter Socket Structure for Dust Isolation and Alignment

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Solution Overview

Problem

Existing sockets are prone to corrosion due to humidity and dust, pose a risk of electric shock from foreign objects, have complex structures leading to assembly and repair difficulties, and suffer from misaligned safety shutters.

Innovation Solution

A socket with a safety shutter featuring interpenetrating first and second sliding structures, a base plate with reverse placement prevention bulges, and a stable structure design that includes grounding and conducting plates, allowing easy plug insertion and preventing foreign object entry.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a fixed structure of a shell is used, then assembly is simple, but stability is insufficient leading to safety shutter misalignment

Engineering Contradiction:

Improveassembly simplicityVSAvoidsafety shutter alignment stability

Core Design Contradiction:

Ease of manufactureVSStability of the object's composition

Solution Approach 1:

The shell is divided into an upper shell and a lower shell that can be separated and reassembled. The safety shutter device is integrated into the lower shell, which provides a stable base structure. This segmentation allows for easy assembly and disassembly while maintaining stability through the interpenetrating sliding structures that are firmly anchored in the lower shell.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The safety shutter mechanism employs dynamic sliding structures instead of a completely fixed configuration. The interpenetrating sliding structures allow controlled movement and adjustment during assembly, enabling proper alignment while maintaining stability once assembled. The sliding blocks can adjust their positions to accommodate manufacturing tolerances.

Inventive Principle:

Principle #15Dynamics

2Ease of operation

If the socket is open to allow plug insertion, then ease of operation is improved, but conducting plates are exposed to humidity and dust causing corrosion

Engineering Contradiction:

Improveplug insertion easeVSAvoidcorrosion from humidity and dust

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The safety shutters perform a preliminary protective action by covering the conducting plates before any plug insertion occurs. The shutters are positioned to automatically reveal the jack holes only when a plug is being inserted, providing continuous protection against humidity and dust while maintaining ease of operation.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The safety shutters act as intermediary elements between the external environment and the conducting plates. These shutters can move to allow plug insertion while maintaining protection, serving as a mediator that enables operation without direct exposure to harmful factors.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Reliability

If safety shutters are made movable to prevent foreign object entry, then safety is improved, but misalignment occurs leading to overall locking

Engineering Contradiction:

Improveelectric shock preventionVSAvoidshutter alignment

Core Design Contradiction:

ReliabilityVSStability of the object's composition

Solution Approach 1:

The sliding blocks are nested within the interpenetrating sliding structures, with each block confined to its own chute but interacting with the other structure. This nesting provides stable guidance and prevents misalignment while allowing the necessary movement for safety shutter operation. The nested configuration ensures that each component remains properly positioned.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

Inventive Principle:

Principle #15Dynamics

4Reliability

If complex structures are used to solve safety and protection problems, then reliability is improved, but assembly and repair become difficult

Engineering Contradiction:

Improvesafety protection effectivenessVSAvoidassembly and repair ease

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The socket is segmented into modular components: an upper shell containing the jack holes, a lower shell containing the conducting plates and safety shutter device, and a base. This segmentation allows each component to be manufactured and assembled separately, simplifying the overall assembly process while maintaining the reliability of the safety protection mechanisms.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The interpenetrating sliding structures serve multiple functions: they guide the sliding blocks, provide stable mounting for the safety shutter device, enable controlled movement, and ensure proper alignment. This multi-functionality reduces the need for additional separate components, simplifying assembly while maintaining reliability.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS12542393B2Socket with safety shutter

Publication Date: 2026.02.03 JIANGSU BAREP INTELLIGENCE TECH CO LTD

AI summary

The present disclosure discloses a socket with a safety shutter, including a safety shutter device, a socket upper cover, and a socket base; the safety shutter device includes a base plate, and a first sliding structure, a second sliding structure, and a third sliding structure which are slidably connected in the base plate; the first sliding structure and the second sliding structure are connected in an interpenetrating manner; a plurality of jack groups are formed in the socket upper cover; each jack group includes a grounding jack, an I-shaped jack, and a T-shaped jack; and the socket base is provided with a grounding conducting plate, a first conducting plate, and a three-pin second conducting plate corresponding to the T-shaped jack.