Flexible Driving Device for Lighting Adaptability
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Solution Overview
Problem
Conventional lighting devices and advertising panels require separate pivoting mechanisms to adjust illumination angles and directions, limiting their flexibility and installation options, and are unable to adapt to user movement or environmental changes.
Innovation Solution
A flexible driving device comprising a first driving unit maintaining a specific shape at room temperature and a second driving unit that bends at a preset temperature to adjust the direction and angle of a coupled object, using shape memory alloys and sensing units to adapt to user movement and environmental conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a separate pivoting device such as a motor is used to change illumination angle, then the lighting device can be rotated to lighten moving objects, but the device requires additional mechanical components and is pivoted within only a limited path
Solution Approach 1:
The patent replaces the conventional motor-based mechanical pivoting system with a shape memory alloy-based flexible driving unit. The shape memory alloy wire changes its shape in response to temperature changes, enabling the lighting device to bend and adjust its illumination angle without complex mechanical pivoting mechanisms, thereby reducing device complexity while maintaining adaptability.
Solution Approach 2:
The patent utilizes temperature as a control parameter to change the shape of the shape memory alloy wire. By applying heat (e.g., through Joule heating when current is applied), the shape memory alloy transitions from a bent state to a straight state, enabling dynamic adjustment of the lighting device's angle without mechanical actuators.
2Adaptability or versatility
If the lighting device is pivoted within a limited path by a pivoting shaft, then the device can be rotated, but it may not irradiate light to objects at various positions
Solution Approach 1:
The patent replaces the pivoting shaft mechanism with a flexible driving unit based on shape memory alloy. This allows the lighting device to bend along a curved path rather than being constrained to rotation around a fixed pivot point, enabling light to be irradiated to objects at various positions while eliminating the pivoting shaft mechanism.
3Adaptability or versatility
If a separate rotation device is required to rotate the panel for displaying advertising information in various directions, then the panel can be viewed from multiple directions, but the device complexity increases
Solution Approach 1:
The patent replaces the separate rotation device with a flexible driving unit that uses shape memory alloy to bend the panel support structure. This allows the panel to be tilted and rotated to various viewing angles without requiring a complex mechanical rotation device, thereby reducing device complexity while maintaining multi-directional visibility.
4Adaptability or versatility
If the conventional lighting device has a fixed shape, then the structure is simple, but the device has a limitation in that it should be installed only at a limited place
Solution Approach 1:
The patent introduces a flexible driving unit with shape memory alloy that enables the lighting device to dynamically change its shape between bent and straight states. This dynamic shape adjustment capability allows the device to be installed in various locations and orientations, adapting to different installation environments without requiring multiple fixed-configuration devices.
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 versatile adjustment of direction and angle, allows installation at various locations, and optimizes brightness and direction based on user movement and environmental information, enhancing adaptability and functionality.
Implementation Method 1
a second driving unit adapted to be bent at a preset temperature or higher according to an electric signal supplied from an outside
Implementation Method 2
The second driving may have a larger elastic force than the first driving unit in a superelasticity state
Implementation Method 3
a sensing unit adapted to sense a movement or an environmental state around the driving device
Implementation Method 4
a control unit adapted to supply a current to the driving unit on the basis of attribute information on a movement or an environmental state sensed by the sensing unit
Data Source
AI summary
A flexible driving device includes: a first driving unit adapted to maintain a specific shape at room temperature; and a second driving unit adapted to be bent at a preset temperature or higher according to an electric signal supplied from an outside, thereby adjusting at least one of a direction and an angle of an object to be driven, which is coupled to the driving device. It is possible to adjust the direction and angle of the object to be driven, which is coupled to the driving device, install the driving device at different places by changing the shape thereof, change brightness and angle of a light source or a panel to an optimum brightness or direction on the basis of the user's movement and peripheral environment information, and change the brightness and angle of the light source or the panel according to a command received from the outside.