Loudspeaker Dehumidifier for Humidity-Stable Volume
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Solution Overview
Problem
Conventional loudspeaker systems with gas adsorbers experience a reduction in volume increasing effect due to humidity, as water molecules pass through hydrophobic treatments and damp air enters the system, leading to noise issues in microphone devices.
Innovation Solution
Incorporating a dehumidifier into the loudspeaker system to discharge damp air externally when a DC voltage is applied, thereby stabilizing the volume increasing effect regardless of ambient humidity, and using a humidity detector to control the dehumidifier's operation for efficient power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a hydrophobic treatment is applied to the gas adsorber and bag, then water vapor adsorption is reduced, but water molecules still pass through the mesh to reach the gas adsorber, limiting the dampness preventing effect
Solution Approach 1:
The patent introduces a dehumidifier as an intermediary device between the external environment and the gas adsorber. The dehumidifier actively removes water molecules from the air before they can reach the gas adsorber, working as a mediator to protect the gas adsorber from humidity without interfering with its gas adsorption function.
Solution Approach 2:
The patent changes the approach from passive hydrophobic treatment to active humidity control by applying electrical energy to the dehumidifier. This parameter change enables dynamic adjustment of the internal environment to maintain optimal conditions for the gas adsorber regardless of external humidity variations.
2Reliability
If a dehumidifier is added to discharge damp air, then the volume increasing effect is stabilized, but device complexity increases
Solution Approach 1:
The patent makes the dehumidifier serve multiple functions: it discharges damp air to protect the gas adsorber, stabilizes the volume increasing effect, and can be controlled based on humidity detection. This multi-functionality justifies the added complexity by providing comprehensive protection against humidity-related issues.
Solution Approach 2:
The system incorporates a humidity detector that automatically monitors the internal environment and controls the dehumidifier operation accordingly. This self-service mechanism allows the system to maintain optimal conditions without constant manual intervention, reducing the operational burden despite the increased structural complexity.
3Reliability
If the dehumidifier operates continuously to maintain low humidity, then the gas adsorber performance is protected, but power consumption increases
Solution Approach 1:
The patent implements periodic action by having the dehumidifier operate only when the humidity detector identifies high humidity conditions. This on-demand operation pattern allows the system to protect the gas adsorber effectively while minimizing unnecessary power consumption during already dry conditions.
Solution Approach 2:
The humidity detector provides continuous feedback to the dehumidifier control system, creating a closed-loop control mechanism. This feedback system allows the dehumidifier to respond dynamically to actual humidity levels, operating only when necessary to maintain optimal conditions, thereby balancing protection effectiveness with energy efficiency.
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 dehumidifier effectively prevents the reduction in volume increasing effect across varying humidity levels, maintaining sound quality and reducing noise issues, while minimizing power consumption.
Implementation Method 1
The gas adsorber 912 includes a porous material having a large number of pores, such as activated carbon. The pore has a size of, for example, the order of nanometers, and therefore, can physically adsorb air.
Implementation Method 2
a DC voltage is applied between the electrodes of the dehumidifier 14, which in turn performs ion decomposition, thereby discharging damp air through the opening 922h to the outside
Data Source
AI summary
A loudspeaker system according to the present invention includes a cabinet, a loudspeaker unit attached to an opening formed in the cabinet, a gas adsorber provided in the cabinet and operable to physically adsorb gas in the cabinet to equivalently increase a volume of an inside of the cabinet, and a dehumidifier attached to an opening formed in the cabinet and operable to discharge damp air in the cabinet to the outside when a DC voltage is applied thereto.