Display Screen Holder With Constant-Force Torque Balancing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing rotary display screen support holders face issues with incomplete torque balancing due to the linear force-varying characteristic of coil springs, leading to user discomfort and limited screen rotation range, often requiring complex structures and high precision.
Innovation Solution
A display screen support holder featuring a constant force spring with a moving end on the stand and a swinging end connected to the screen connecting base, ensuring the spring torque dynamically balances the screen torque, allowing for effortless and flexible screen rotation up to 180°.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a coil spring is used to balance the gravity of the display screen, then the gravitational torque can be partially balanced, but the torque fluctuates around a balance value due to the linear force-varying characteristic of the coil spring, resulting in incomplete balancing and unpleasant handfeel
Solution Approach 1:
The patent changes the force characteristic parameter of the spring from linear (coil spring) to constant force characteristic. The constant force spring maintains a substantially constant force throughout its extension and retraction, which directly addresses the torque balancing inaccuracy caused by the linear spring's varying force. This parameter change enables complete torque balancing without fluctuation.
2Reliability
If multiple gears, non-circular gears, and cams are used to achieve precise torque balancing, then the torque can be balanced accurately, but the structure becomes complex with many parts, requiring high precision and high processing complexity
Solution Approach 1:
The patent extracts and eliminates the complex mechanical transmission components (gears, non-circular gears, cams) from the system. By using a constant force spring directly connected to the screen connecting base, the invention achieves torque balancing without these intermediate components, thereby simplifying the structure while maintaining accurate torque balancing.
Solution Approach 2:
The patent replaces the complex mechanical transmission system (gears and cams) with a constant force spring mechanism. This substitution achieves the same torque balancing function with a simpler, more reliable mechanical system that has fewer parts and lower processing requirements.
3Reliability
If a complex structure with multiple gears and cams is used, then torque balancing can be achieved, but the rigidity of the structure decreases
Solution Approach 1:
The patent removes the multiple gear and cam components that reduce structural rigidity. The simplified structure with the constant force spring directly connected to the screen connecting base eliminates weak points introduced by multiple connection interfaces and mechanical transmission elements, thereby maintaining high structural rigidity.
4Device complexity
If the screen connecting base is limited to swing only within a range of 90° due to structural limitations, then the structure remains simple, but the usability is very inconvenient
Solution Approach 1:
The constant force spring enables the screen connecting base to swing beyond the traditional 90° limitation. The spring's constant force characteristic allows it to maintain effective torque balancing throughout a wider rotation range, enabling the screen to be swung by 180° or more while keeping the structure relatively simple.
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 provides a simple structure that maintains equal and opposite spring and screen torques, enhancing user experience by allowing smooth and stable screen rotation, and enabling the screen to be stopped at any angle, while being suitable for mass production.
Implementation Method 1
a constant force spring configured to dynamically balance the screen torque
Implementation Method 2
a screen torque which the combined gravity generates with respect to the screen rotation center
Data Source
AI summary
A display screen support holder is provided, including a stand, a screen connecting base, and a constant force spring; wherein the screen connecting base is pivotally connected with the stand and configured to be connected with a display; after a display screen is mounted to the screen connecting base, a gravity center of combined gravity of the display screen and the screen connecting base is set to be deviated from a screen rotation center of the screen connecting base; two ends of the constant force spring include a moving end and a swinging end, the moving end is movably arranged on the stand, and the swinging end is swingably and pivotally connected with the screen connecting base. In the process of swinging of the display screen, the spring torque generated by the constant force spring and the screen torque are always kept equal in magnitude and opposite in direction.