Radiating surface structure with absorption device
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing radiant surface structures for temperature control in rooms, such as radiant ceiling panels, fail to effectively reduce noise levels, particularly in the low-frequency range, despite incorporating insulating and sound-absorbing materials, as they rely on perforated absorption devices that are complex to produce and do not achieve satisfactory noise reduction.
Innovation Solution
A radiant surface structure featuring a radiant ceiling panel with a pipe register and an absorption device made of aluminum or steel with closed, non-perforated walls filled with sound-absorbing material, complemented by additional absorption devices with perforation openings, which improves sound absorption across the frequency spectrum, especially in the low-frequency range, while maintaining constant temperature control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If perforated absorption devices are used for sound reduction, then sound absorption is achieved, but manufacturing complexity increases and low-frequency noise reduction remains insufficient
Solution Approach 1:
The patent uses porous sound-absorbing material (such as mineral wool or foam) filled inside closed hollow bodies to create sound absorption devices. The porous structure allows sound waves to penetrate and be absorbed by the material, achieving effective noise reduction particularly in the low-frequency range without requiring complex perforated wall designs.
2Temperature
If insulating layer is added for heat insulation, then temperature control efficiency improves, but device complexity and weight increase
Solution Approach 1:
The patent integrates multiple functions into the absorption devices by positioning them on the rear side of the radiant panel where they simultaneously serve as sound absorption elements and provide thermal insulation support. The hollow bodies filled with sound-absorbing material create air gaps that contribute to thermal insulation, allowing one component to fulfill multiple roles and reducing overall system complexity.
3Ease of manufacture
If closed non-perforated absorption devices are used, then manufacturing is simplified, but sound absorption effectiveness may be reduced
Solution Approach 1:
The patent introduces sound-absorbing material as an intermediary substance filled inside the closed hollow bodies. This material acts as a mediator that enables sound absorption without requiring the walls themselves to be perforated. The sound waves enter the hollow bodies through openings and are absorbed by the porous material inside, achieving effective sound reduction while maintaining simple closed-wall construction for ease of manufacturing.
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 proposed structure achieves significantly improved sound absorption in the low-frequency range with a simplified manufacturing process, ensuring effective noise reduction and maintaining temperature control, with sound absorption coefficients exceeding 0.8 in relevant frequency ranges.
Implementation Method 1
an absorption device (5) in the form of a sound-absorbing mat or consisting of sound-absorbing material
Implementation Method 2
an insulating layer is provided on the side of the radiant surface structure facing away from the room
Data Source
Figure 1~3
Figure 4
AI summary
A radiant heating system for temperature control of a room is proposed, comprising a ceiling radiant panel facing the room to be heated and a pipe register through which a heat transfer medium flows. On the side facing away from the room to be heated, at least one additional absorption device 5 filled with a sound-absorbing material is provided for sound absorption. According to the invention, the absorption device has a closed and perforation-free structure on its side walls 8, wherein the absorption device 5 is preferably made of aluminum or steel and is arranged extending longitudinally along the upper side of the ceiling radiant panel, facing away from the room to be heated.