Rotatable Handle Power Plug for Frost-Resistant Low-Temperature Connection
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Solution Overview
Problem
Conventional power connection apparatuses in low-temperature showcases face issues with electrical leakage, rusting, and frost-induced detachment due to humidity and temperature-related expansion, complicating the connection and disconnection process, and often result in incomplete power supply and equipment damage.
Innovation Solution
A power connection apparatus featuring a power socket with an engagement portion and a rotatable handle on the power plug, allowing the engaging claw to disengageably engage with the socket's engagement portion, and an abutment portion that releases the connection when rotated to a right angle, ensuring secure engagement and preventing terminal deformation, while a drip-proof cover and seal member enhance waterproofing and ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a preventive structure is employed in the connecting portion between the power plug and the power socket to protect against humidity and frost, then the reliability is improved, but the ease of operation deteriorates due to obstructed attachment/detachment operation
Solution Approach 1:
The connecting portion is divided into a seal member (for protection) and engagement portions (for connection). The seal member is separable from the engagement portions, allowing the power plug to be attached/detached from the engagement portions while the seal member remains as a protective barrier when not in use.
Solution Approach 2:
The seal member is designed to be movable between a sealed state (when power plug is not connected) and an open state (when power plug is connected). This dynamic structure allows the seal member to automatically adjust its position based on the connection status, maintaining protection when needed and allowing operation when required.
2Reliability
If engagement portions and a rotatable handle with engaging claws are provided to secure the connection between the power plug and the power socket, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The engaging claws and abutment portion are integrated into a single handle structure. The handle combines multiple functions (engagement, rotation, and abutment) into one component, reducing the number of separate parts while maintaining the secure connection mechanism.
Solution Approach 2:
The handle serves multiple functions: it provides engaging claws for secure attachment, acts as a rotation mechanism for connection confirmation, and includes an abutment portion for preventing over-insertion. This multi-functional design reduces overall structural complexity while achieving reliable connection.
3Reliability
If the power plug is pressed onto the power socket to ensure terminal contact with the electrode portion, then the electrical connection is improved, but the terminals are susceptible to deformation and damage from frost and humidity
Solution Approach 1:
The seal member acts as an intermediary between the power plug terminals and the external environment (frost and humidity). It provides a protective barrier that allows electrical connection to be maintained while preventing harmful substances from reaching the terminals.
Solution Approach 2:
The seal member is positioned to prevent frost and humidity from reaching the terminals before damage can occur. By establishing this protective barrier in advance, the system prevents the harmful effects of frost and humidity accumulation that would otherwise lead to terminal damage.
Data Source
AI summary
There is disclosed a power connection apparatus which can secure connection between a power socket and a power plug with a simple constitution and which can simplify the connecting operation properties thereof. A handle rotatably attached to the power plug having terminals includes engaging claw disengageably engaged with engagement portion of the power socket having an electrode portion, an abutment portion which abuts on the power socket, and a grip portion. In a state where the handle is rotated to such an angle that the handle is at substantially right angles to the power socket, the abutment portion abuts on the power socket, thereby releasing connection between the electrode portion and the terminals or the like.