Rotatable Display Stand With Wireless Power and Signal Transfer
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Solution Overview
Problem
Conventional display devices require a separate power supply system for their supporting stands, which increases production costs and limits their use without access to power sockets, and they lack the ability to pivotally rotate between portrait and landscape orientations.
Innovation Solution
A display device with a transmitting coil on the display and a receiving coil on the supporting stand, allowing wireless power transmission and signal control, enabling the supporting stand to rotate between portrait and landscape orientations without a separate power connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a separate power supply system is installed in the supporting stand to power LEDs, then the LEDs can be illuminated, but the production cost increases and external power sockets are required
Solution Approach 1:
The patent combines the power supply function into the display device itself by integrating a power transmission coil in the display and a power receiving coil in the supporting stand. This merging eliminates the need for a separate external power supply system in the supporting stand, reducing device complexity while maintaining LED illumination capability through wireless power transfer.
Solution Approach 2:
The patent replaces the traditional mechanical/electrical power connection system with a wireless electromagnetic power transmission system. Instead of using physical power cables and external power sockets, the system uses electromagnetic induction between transmitting and receiving coils to power the LEDs, simplifying the power supply structure.
2Stability of the object's composition
If the supporting stand is fixed to provide stable installation, then stability is achieved, but the display cannot be rotated between portrait and landscape orientations
Solution Approach 1:
The patent introduces a rotating mechanism with a bearing unit that allows the display to dynamically change orientation between portrait and landscape positions while maintaining stable installation. The bearing unit enables rotational movement, transforming the fixed structure into a dynamic one that adapts to different viewing preferences without compromising stability.
Solution Approach 2:
The patent divides the supporting stand into separate functional components including a rotating mechanism and a bearing unit. This segmentation allows the rotational function to be independently implemented while maintaining the overall structural stability of the installation system.
3Ease of operation
If wireless power transmission is implemented between display and supporting stand, then external power connections are eliminated, but the distance between coils must be precisely controlled
Solution Approach 1:
The patent pre-positions the transmitting coil in the display and the receiving coil in the supporting stand during the manufacturing and assembly process. This preliminary action ensures that the coils are initially placed at the correct distance and alignment, facilitating wireless power transmission while managing the precision requirements through careful design and assembly procedures.
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 the display device to supply power and control signals to the supporting stand's electrical components wirelessly, reducing production costs and allowing flexible orientation without the need for external power sources, while allowing the display to pivot between orientations.
Implementation Method 1
When the display is powered on, the current flows through the transmitting coil, the transmitting coil generates a magnetic field, and the receiving coil generates an induced current in response to the magnetic field
Data Source
AI summary
A display device is provided. The display device includes a supporting stand, a display, a wireless charging module and a control module. The display is disposed on the supporting stand and the orientation of the display is changeable between portrait and landscape relative to the supporting stand. The wireless charging module includes a transmitting unit and a receiving unit disposed on the display and the supporting stand respectively. The transmitting unit has a transmitting coil. The receiving unit is coupled to the electronic component. The receiving unit has a receiving coil. The control module controls the transmitting unit to transmit mixed signals. When the distance between the receiving coil and the transmitting coil is less than a maximum sensing distance, the receiving unit receives the mixed signals and selectively transmits the enabling signal to at least one of the electronic components according to the mixed signal.