Hinge Module With Differential Friction Curling Part
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Solution Overview
Problem
Electronic devices with existing hinge structures have a large thickness when display devices or cases are superimposed, limiting their flexibility and allowing only specified rotary motion angles.
Innovation Solution
A hinge module that connects multiple display devices or cases, allowing a slim coupled state and easy rotation to desired angles, while preventing twisting and facilitating signal line arrangement between devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a hinge structure is used to connect display devices or cases, then the devices can be arranged at various angles, but the thickness becomes large when devices are superimposed
Solution Approach 1:
The hinge module is inserted into a groove formed in the case, with the groove receiving the hinge module. This nesting arrangement allows the hinge structure to be concealed within the case thickness, reducing the overall thickness when display devices are superimposed while maintaining the ability to arrange devices at various angles.
2Stability of the object's composition
If a hinge structure with large thickness is used, then the connection is stable, but the devices cannot be easily rotated and maintained at specified angles
Solution Approach 1:
The hinge module includes a curling part that provides differential frictional forces to hinge shafts, enabling dynamic control of rotation. The curling part can be rotated relative to hinge shafts, allowing easy rotation to desired angles while maintaining stability at specified positions through friction control.
Solution Approach 2:
The curling part changes the friction parameter dynamically by rotating relative to the hinge shafts. This allows the hinge to transition between easy rotation mode and stable position mode, enabling both easy rotation to desired angles and maintenance of specified angles.
3Adaptability or versatility
If a hinge structure is used to connect display devices, then the devices can rotate, but twisting occurs during rotation
Solution Approach 1:
The first and second hinge shafts have different diameters, and the curling part provides different frictional forces to each hinge shaft. This asymmetric design allows differential rotation of the hinge shafts, preventing twisting while enabling rotation capability.
Solution Approach 2:
The curling part changes the friction parameter applied to each hinge shaft differently, allowing one hinge shaft to rotate before the other. This parameter change prevents simultaneous rotation that would cause twisting while maintaining overall rotation capability.
4Reliability
If a hinge structure with complex arrangement is used, then the connection is secure, but signal lines are difficult to arrange between devices
Solution Approach 1:
The hinge module extracts the complex mechanical connection function into a separate, self-contained unit that can be easily installed in the groove of the case. This separation simplifies the overall device structure and makes signal line arrangement between devices more straightforward while maintaining secure connection.
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
Enables flexible arrangement and maintenance of display devices at desired angles with reduced thickness, preventing twisting during rotation and simplifying signal line integration.
Implementation Method 1
a curling part that provides a frictional force to the first hinge shaft, at least a portion of which is inserted into the curling part, to allow the first hinge shaft to rotate with a first torque and provides a frictional force to the second hinge shaft, at least a portion of which is inserted into the curling part, to allow the second hinge shaft to rotate with a second torque different from the first torque
Data Source
Figure 1A
Figure 1B
Figure 1C
AI summary
Disclosed are a hinge module, and a case and an electronic device that include the same. The hinge module includes a first case connection connected to a first case, a second case connection connected to a second case, a first hinge shaft having one end connected to the first case connection, a second hinge shaft having one end connected to the second case connection, and a curling part that provides a frictional force to the first hinge shaft, at least a portion of which is inserted into the curling part, to allow the first hinge shaft to rotate with a first torque and provides a frictional force to the second hinge shaft, at least a portion of which is inserted into the curling part, to allow the second hinge shaft to rotate with a second torque different from the first torque.