Display Stand Center of Gravity Optimization
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Solution Overview
Problem
Existing display devices have a large installation area due to the protrusion of the rack, which compromises the compactness and stability of the device.
Innovation Solution
A display device design featuring a stand with a contact portion positioned inside a triangle formed by lines representing the center of gravity and falling angles, with a weight object placed on the back face to optimize the center of gravity and reduce the installation area, allowing the stand to be shallower while maintaining stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a rack is provided to support the display section, then the display device achieves stability, but the installation area becomes large due to rack protrusion
Solution Approach 1:
A weight object is provided on the back face side of the display section to counterbalance the moment caused by the display section's weight. This allows the stand's contact portion to be positioned closer to the front, reducing the installation area while maintaining stability through proper center of gravity control
Solution Approach 2:
The position and weight of the weight object are optimized to adjust the assembly's center of gravity. By changing these parameters, the contact portion can be placed inside the first triangle (reducing installation area) while ensuring the center of gravity remains above the contact portion (maintaining stability)
2Area of stationary object
If the stand depth is reduced to minimize installation area, then the installation area decreases, but the assembly becomes prone to falling down
Solution Approach 1:
The weight object compensates for the reduced stand depth by providing a counterbalancing moment. This allows the assembly to maintain adequate falling resistance even with a shallow stand, as the weight object's strategic placement creates the necessary rotational equilibrium
Solution Approach 2:
Instead of increasing stand depth (one dimension) to prevent falling, the solution moves the weight object to the back face side (utilizing depth dimension strategically) to create a balancing moment, thereby achieving falling resistance without proportionally increasing the stand's physical depth
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 design effectively reduces the installation area and ensures the display device remains stable by positioning the center of gravity above the stand's contact point, even with a shallow stand depth, thereby enhancing balance and preventing falling.
Implementation Method 1
the center of gravity of the assembly is determined based on a weight ratio between the display section and the weight object on a straight line that connects the center of gravity of the display section and the center of gravity of the weight object
Data Source
AI summary
A display device includes an assembly including a stand placed on an installation plane, a flat-plate-like display section supported by the stand, and a weight object provided on a back face side of the display section, the stand having a contact portion in contact with the installation plane, the contact portion being provided inside a first triangle formed by second and third straight lines and the installation plane, the second and third straight lines both passing through center of gravity of the display section and forming, with respect to a first straight line, an angle equal to a back-falling angle and a front-falling angle of the assembly, respectively, and the first straight line passing through the center of gravity of the display section and being perpendicular to the installation plane.