Dual Torque Generator Hinge Stabilizes Tablet Screen
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Solution Overview
Problem
Existing electronic apparatuses face inaccuracies in touch control operations due to display screen shaking and risk of damage from torque rebound when closing, primarily caused by inadequate balancing of push forces and gravitation.
Innovation Solution
Incorporating a connection device with two torque generators, where the first torque generator balances gravitational torque and the second torque generator engages only when the angle exceeds a preset threshold to counteract composite forces, preventing screen shaking and torque rebound.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a single torque generator is used to balance the push force of touch control operation, then the display screen shaking is reduced, but torque rebound phenomenon occurs when closing the electronic apparatus
Solution Approach 1:
The single torque generator is divided into two separate torque generators: a first torque generator that engages always to balance gravitational torque, and a second torque generator that engages only when the angle exceeds a preset threshold to balance composite forces. This segmentation allows each generator to have specialized functions, preventing torque rebound while maintaining screen stability.
Solution Approach 2:
The system dynamically adjusts which torque generator engages based on the angle between the first and second bodies. When the angle is within the preset threshold, only the first torque generator engages. When the angle exceeds the threshold, the second torque generator engages in addition to the first. This dynamic engagement strategy prevents torque rebound during closing while maintaining screen stability during operation.
2Measurement precision
If the torque generator engages continuously to balance all forces, then touch control accuracy is improved, but damage to the electronic apparatus occurs due to torque rebound
Solution Approach 1:
The torque generation system dynamically adjusts based on operating conditions. The second torque generator engages only when the angle between bodies exceeds a preset threshold, providing additional balancing force during touch operations to improve accuracy, while disengaging before closing to prevent torque rebound damage.
Solution Approach 2:
The system prevents torque rebound damage by ensuring the second torque generator disengages before the closing process begins. The preset threshold is set such that the second torque generator stops providing balancing force before the bodies approach the closed position, thereby preventing the harmful rebound effect while maintaining accuracy during normal operation.
3Device complexity
If no torque generator is used, then the device complexity is reduced, but the display screen shakes during touch control operation
Solution Approach 1:
The torque balancing function is segmented into two distinct torque generators with specialized roles. The first torque generator handles gravitational balancing always, while the second torque generator provides additional support only when needed. This segmentation achieves screen stability without requiring an overly complex single-generator system.
Solution Approach 2:
The torque generators utilize the gravitational force and push forces naturally acting on the system to provide balancing torques. The first torque generator automatically balances gravitational torque, and the second torque generator automatically engages to balance composite forces when the angle exceeds the threshold, reducing the need for complex control mechanisms.
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
Ensures accurate touch control operations by stabilizing the display screen and extends the electronic apparatus's service life by preventing damage from torque rebound.
Implementation Method 1
a first elastic device which has a hollow structure and is sleeved outside the crossbar
Implementation Method 2
a second elastic device which has a hollow structure and is sleeved outside the crossbar
Implementation Method 3
a first torque generator generates a first torque for balancing a second torque generated by gravitation of the first body
Data Source
AI summary
An electronic apparatus includes a first body; a second body; a connection device including: a connection body through which the first body is connected with the second body; with a first torque generator and a second torque generator provided inside the connection body. When an angle value is in a first preset threshold range, the first torque generator generates a first torque for balancing a second torque generated by gravitation of the first body. When the angle value is larger than a maximum value of the first preset threshold range, the first torque generator generates a third torque and the second torque generator generates a fourth torque; the third torque and the fourth torque balancing a fifth torque generated by a first composite force, which is the composite force of the gravitation of the first body and a push force acting on a touch control unit.