Rotary coupling structure, power supply device and sofa
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Solution Overview
Problem
Existing power supply devices for electric products, such as smart home appliances and electric sofas, face challenges with unstable connections and inefficient assembly/disassembly processes, leading to reduced production efficiency.
Innovation Solution
A rotary coupling structure with a fixing base and rotating member, featuring a sleeve with a lock slot and limit buckle, and a rotary coupling plug with a rotary lock blade, which allows for secure electrical connection and easy installation/disinstallation by rotating within a limited angle range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the plug is directly inserted into the power input interface, then the installation process is simple, but the connection stability is poor and assembly/disassembly difficulty increases
Solution Approach 1:
The patent applies the dynamics principle by introducing a rotary coupling mechanism where the plug can rotate relative to the interface. The coupling structure transitions from a static direct insertion to a dynamic rotary connection, allowing the plug to rotate into a locked position for stable connection while maintaining ease of assembly and disassembly through simple rotational motion.
Solution Approach 2:
The patent uses an intermediary coupling structure between the plug and the power input interface. This rotary coupling mechanism acts as a mediator that provides both stable connection through its locking feature and ease of operation through its simple rotary engagement, resolving the contradiction between connection stability and assembly convenience.
2Ease of manufacture
If the plug is directly inserted into the power input interface, then the structure is simple, but the assembly and disassembly process becomes difficult
Solution Approach 1:
The rotary coupling mechanism introduces dynamic rotational motion to the assembly process, replacing difficult manual manipulation with a simple rotate-engage-disrotate-disengage sequence. This maintains structural simplicity while dramatically improving assembly and disassembly convenience for production efficiency.
Solution Approach 2:
The rotary coupling structure incorporates self-aligning and self-locking features that guide the assembly process. The plug automatically engages with the coupling mechanism and locks into position through rotation, reducing the need for precise manual alignment and making the assembly process easier and faster for production.
3Reliability
If a rotary coupling mechanism is introduced, then the connection stability is improved, but the device complexity increases
Solution Approach 1:
The rotary coupling mechanism is segmented into distinct functional components: the coupling body, the locking feature, and the engagement interface. This segmentation allows each component to perform its specific function efficiently while keeping the overall structure manageable and not excessively complex, achieving stable electrical connection with controlled complexity.
Solution Approach 2:
The rotary coupling mechanism is designed to perform multiple functions: mechanical connection, electrical connection, positioning, and locking. By integrating these functions into a single unified structure rather than separate components, the patent achieves stable electrical connection without proportionally increasing device complexity.
Data Source
AI summary
Described herein is a rotary coupling structure which comprises a fixing base and a rotary coupling plug; and the fixing base comprises a mounting member and a rotating member; the mounting member comprises a sleeve provided on the inner wall with a lock slot, a limit buckle disposed at the end of the sleeve, and a side boss disposed on the side wall of the sleeve; the rotary coupling plug, configured to be inserted into the sleeve and connected with a connector, is provided with a rotary lock blade rotatively disposed in the lock slot.