Coil Spring Guide Structure for Stable Solar Panel Contacts
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Solution Overview
Problem
Existing electronic devices, such as wristwatches, face issues with coil spring buckling due to stress increases from buckling prevention sections, leading to unstable connections between circuit boards and solar panels, resulting in increased loads on the solar panel.
Innovation Solution
The implementation of a resilient guide holding member with a guide portion and a resilient holding portion to guide and hold the coil spring in opposing directions, preventing buckling and reducing stress, thereby ensuring a stable connection between the circuit board and the solar panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a buckling prevention section is formed on the coil spring to prevent deformation, then buckling is suppressed, but stress in the coil spring increases and loads on the solar panel increase
Solution Approach 1:
A guide member is introduced as an intermediary component between the coil spring and the solar panel. The guide member includes a guide hole that guides the coil spring in the thickness direction, preventing buckling without requiring structural modifications to the coil spring itself. This separates the buckling prevention function from the coil spring, allowing the coil spring to maintain its original stress characteristics while still achieving stable connection.
Solution Approach 2:
The buckling prevention function is segmented from the coil spring and assigned to a separate guide member. The guide member is divided into a guide portion (with the guide hole) and a resilient holding portion, where only the guide portion performs the buckling prevention through lateral guidance, while the resilient holding portion provides flexible support. This segmentation allows the coil spring to focus on its primary elastic connection function without additional stress from buckling prevention structures.
2Stress or pressure
If the coil spring is allowed to move freely to reduce stress, then loads on the solar panel decrease, but deformation such as buckling may occur
Solution Approach 1:
The guide member acts as a mediator that provides lateral guidance to the coil spring through its guide hole, preventing buckling without constraining the coil spring's vertical movement. The guide hole has a width that allows the coil spring to pass through while restricting lateral deviation, thus maintaining stability without increasing stress or loads on the solar panel.
Solution Approach 2:
The resilient holding portion of the guide member is designed with flexible characteristics, allowing it to deform elastically in response to coil spring movement. This flexibility enables the guide member to provide guidance and support without creating rigid constraints that would increase stress on the coil spring, thereby maintaining low loads on the solar panel while preventing buckling.
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
This solution effectively prevents coil spring buckling, reduces stress and repulsive forces, and minimizes loads on the solar panel, ensuring reliable electrical connections and optimal performance.
Implementation Method 1
a resilient conductive member which electrically connects the first contact member with the second contact member
Implementation Method 2
a resilient guide holding member having a guide portion which guides the resilient conductive member in opposing directions, and a resilient holding portion which holds the guide portion such that the guide portion is resiliently movable
Data Source
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AI summary
An electronic device including a first contact member (16), a second contact member (25) which is arranged opposing the first contact member (16), a resilient conductive member (30) which electrically connects the first contact member (16) with the second contact member (25), and a resilient guide holding member (32) having a guide portion (34) which guides the resilient conductive member (30) in opposing directions of the first contact member (16) and the second contact member (25), and a resilient holding portion (35) which holds the guide portion (34) such that the guide portion (34) is resiliently movable in the opposing directions of the first contact member (16) and the second contact member (25).