Rotating Charger Plug Structure for Multi-Angle Socket Alignment
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Solution Overview
Problem
Existing chargers are inconvenient due to their fixed relative position between the pin and charger body, making them difficult to use in sockets with different receptacle directions and are bulky for carrying.
Innovation Solution
A charger design featuring a plug with a rotating mechanism and tooth ring system that allows the plug to rotate at multiple angles, enabling the pin to be inserted into charging sockets at various orientations without affecting usability, and includes a pendulum block mechanism for safety and compactness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the relative position of the pin and charger body is fixed, then the charger structure is simple, but it causes great inconvenience when used in sockets with different receptacle directions
Solution Approach 1:
The patent applies the dynamics principle by making the plug rotatable within the receiving cavity. The plug can rotate to different angles (0°, 45°, 90°, 135°) to adapt to sockets with different receptacle directions. This dynamic adjustment capability resolves the contradiction by enabling the charger to adapt to various socket orientations while maintaining a relatively simple overall structure through the use of a rotating mechanism rather than multiple fixed configurations.
2Ease of operation
If the charger size is reduced for portability, then carrying convenience is improved, but safety regulation requirements on creepage distance become harder to meet
Solution Approach 1:
The patent applies the dimensionality change principle by utilizing the rotational dimension of the plug. Instead of increasing the charger's length or width to meet creepage distance requirements, the solution allows the plug to rotate within the compact charger body. This enables the charging pins to achieve proper spacing and orientation for safety compliance while maintaining a compact form factor that is convenient for carrying.
3Adaptability or versatility
If the plug can rotate to multiple angles, then usability in different socket orientations is improved, but the device complexity increases due to rotating mechanism
Solution Approach 1:
The patent applies the segmentation principle by dividing the plug structure into distinct components: the connecting part, positioning part, and pin. The positioning part with clamping grooves and the tooth ring with clamping teeth work together to enable discrete angular positions. This segmentation allows the plug to achieve multi-angle rotation capability while keeping each component relatively simple and easy to manufacture.
Solution Approach 2:
The patent applies the self-service principle through the self-limiting rotation mechanism. The clamping tooth on the tooth ring automatically engages with one of the clamping grooves on the positioning part when the plug is rotated, naturally limiting the rotation angle without requiring external control systems. This self-service mechanism enables multi-angle adaptability while minimizing the complexity of control and actuation systems.
Data Source
AI summary
Provided is a charger, comprising a charger body, a plug and a tooth ring; the charger body is provided with a receiving cavity for receiving the plug, and the tooth ring is arranged in the charger body; the plug comprises a connecting part, a positioning part and a pin, an upper surface of the connecting part exposes the receiving cavity, and the pin is installed on the upper surface, one end of the positioning part is connected to a lower surface of the connecting part, and another end of the positioning part extends into a central through hole of the tooth ring, which is provided with a clamping tooth, the positioning part is provided with a plurality of clamping grooves, and when the plug in the receiving cavity is rotated, the clamping tooth is clamped into one of the clamping grooves to limit the rotation angle of the plug.