Vibration-Damped Motor Drive in Awning Roller Tube
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Solution Overview
Problem
Existing awning systems with automatic intelligent controls face noise issues due to mechanical drive operation, which is exacerbated by the need for noise reduction methods that compromise shading area, such as vibration-damped mounting or complex sound actuator systems.
Innovation Solution
A vibration decoupling device is integrated within the roller tube between the motor drive and side wall, using a radial damping element and support head with a bearing head for form-fitting engagement, allowing for complete vibration decoupling without reducing the shading area, and featuring a compact design with adjustable components for optimal damping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If vibration-damped mounting is used to reduce noise, then noise reduction is improved, but the roller tube has to be shortened and the fabric made correspondingly narrower, resulting in a smaller shading area
Solution Approach 1:
The vibration decoupling device is nested completely inside the roller tube, with the motor drive housed within the roller tube and the damping components arranged within the hollow interior space. This nesting approach allows vibration damping without requiring additional external space that would reduce the fabric width and shading area.
Solution Approach 2:
The vibration damping function is achieved by adding components in the radial and axial dimensions within the roller tube's hollow space, rather than reducing the fabric width. The radial damping element engages in the radial direction while the support head and bearing head engage in the axial direction, utilizing the three-dimensional interior space of the roller tube.
2Object-affected harmful factors
If a noise control system with sound actuator is used to generate counter-sound, then noise and vibration damping is improved, but the system becomes more complex due to additional acoustic components
Solution Approach 1:
The patent replaces the complex acoustic noise control system with a purely mechanical vibration decoupling device. Instead of using sound actuators and counter-sound generation, the invention uses mechanical damping elements made of vibration-damping materials to absorb and dissipate mechanical vibrations at their source, eliminating the need for complex acoustic control systems.
3Stability of the object's composition
If the motor drive is securely mounted to the side wall for stable operation, then operational stability is improved, but vibration and noise transmission to the building structure increases
Solution Approach 1:
The vibration decoupling device acts as an intermediary between the motor drive and the side wall. The support head and bearing head provide secure mechanical mounting for operational stability, while the radial damping element made of vibration-damping material serves as a mediator that decouples the vibration transmission path to the building structure.
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
This solution effectively dissipates motor drive torque while maintaining the awning's shading area, providing improved noise reduction and durability through flexible materials and a torsional stop mechanism, ensuring reliable operation and reduced noise disturbance.
Implementation Method 1
a radial damping element made of a vibration-damping, flexible material engages with the support head in a form-fitting manner in the direction of rotation
Implementation Method 2
The supporting torque of the motor drive, which occurs when the roller tube is actuated, is transferred to the side wall via the form-fitting engagement between the components mentioned, with the radial damping element being naturally compressed due to its flexibility
Data Source
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AI summary
An awning comprises: - two side panels (1) arranged on a base, between which a fabric roller (3) is rotatably mounted, - an awning fabric (4) that can be wound onto and off the fabric roller (3), - a motor drive (5) integrated within the fabric roller (3) that sets the roller in rotation and is mounted on one of the side panels (1) with vibration damping, and - a vibration decoupling device (50) arranged completely within the fabric roller (3) between the motor drive (5) and the side panel (1) with: = a support head (11) that holds the motor drive (5) rotationally fixed, = a radial damping element (16) made of a vibration-damping, flexible material that engages with the support head (11) in a form-fitting manner in the direction of rotation, and = a bearing head (19) arranged rotationally fixed on the side panel (1), which engages with the radial damping element (16) in the direction of rotation engages in a form-fitting manner.