Power Track Protective Door With Spring-Reset Dust Shielding
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Solution Overview
Problem
Dust easily enters the interior of power tracks through the track opening, causing wear on the internal conductive plate and shortening the service life of the power track.
Innovation Solution
A protective door with a door base, door leaf, and reset spring mechanism is implemented, where the door leaf moves to shield the track opening when not in use and is guided by limiting structures for snap-fit assembly, using plastic materials to resist deformation and enhance durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the track opening is kept open to allow adapter insertion, then ease of operation is improved, but dust enters the interior causing wear and reliability deteriorates
Solution Approach 1:
The protective door is pre-positioned in a closed state to shield the track opening before adapter insertion occurs. The door automatically opens only when the adapter is being inserted, and automatically closes after insertion is complete, preventing dust ingress during idle periods while maintaining ease of operation during actual use.
Solution Approach 2:
The protective door transitions from a static closed state to a dynamic state that automatically opens and closes based on adapter insertion events. This dynamic behavior allows the system to maintain reliability during idle periods while ensuring ease of operation during actual adapter insertion, resolving the contradiction between keeping the opening closed for protection and open for operation.
2Reliability
If a protective door is added to prevent dust ingress, then reliability is improved, but device complexity increases
Solution Approach 1:
The protective door system is designed to automatically open and close without requiring external control mechanisms or additional actuators. The door utilizes the physical presence of the adapter during insertion to trigger opening, and automatically returns to closed position afterward, eliminating the need for complex control systems while maintaining improved reliability.
Solution Approach 2:
The protective door acts as an intermediary element between the external environment (dust) and the internal components (conductive plate). By positioning the door as a movable barrier that selectively opens only during necessary operations, the system protects internal components from dust ingress without requiring complete enclosure, thus maintaining simplicity while improving reliability.
3Ease of operation
If the door leaf is made movable to allow adapter passage, then ease of operation is improved, but stability of composition worsens
Solution Approach 1:
The door leaf is extracted from a fixed structural component and transformed into a movable protective element that can be separated from the main housing during operation. This extraction allows the door to move independently for adapter passage while maintaining a stable connection to the housing through the snap-fit mechanism, resolving the contradiction between movability for operation and stability for structural integrity.
Solution Approach 2:
The door assembly is segmented into distinct components: the door leaf, the snap-fit engagement structures, and the housing mounting points. This segmentation allows the door leaf to move independently for adapter passage while the snap-fit structures maintain stable connection during idle periods, achieving both ease of operation and stability of composition through modular design.
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 solution effectively prevents dust ingress, prolongs the service life of the power track, and enhances user experience by ensuring smooth adapter movement with reduced friction and noise.
Implementation Method 1
a reset spring disposed between the door base and the door leaf, wherein an extension and contraction direction of the reset spring is parallel to a moving direction of the door leaf
Data Source
Figure 1~2
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Figure 5~6
AI summary
A protective door, a power track and a track socket, belonging to the technical field of sockets. The protective door (2) comprises a door base (21), door sheets (22) and reset springs (23), the door base (21) being provided with first limiting structures (211), each door sheet (22) being provided with a second limiting structure (221), the door sheets (22) being snap-fit on the door base (21) by means of cooperation of the first limiting structures (211) and the second limiting structures (221), and the door sheets (22) being capable of moving relative to the door base (21). The reset springs (23) are located between the door seat (21) and the door sheets (22), and the stretching and retraction direction of the reset springs (23) is parallel to the moving direction of the door sheets (22). Using the protective door (2) enables users to insert adapters into the power track or pull out the adapters from the power track with relatively small forces, thereby improving the smoothness of inserting and removing the adapters; moreover, the protective door (2) is not prone to deformation and aging, is not easily affected by oil smoke and salt stains, and has relatively high durability, thus further prolonging the service life of the power track, and enhancing user experience.