RV Pump Noise Reduction via Sound-Insulating Housing
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Solution Overview
Problem
Recreational vehicles with inflatable elements, such as lifting roofs and mattresses, face noise disruptions from air pumps used for inflation, which affect sleep quality and comfort due to air leakage over time.
Innovation Solution
A sound-insulating housing for the pump, equipped with a fan for cooling and an intake air filter, is integrated into the recreational vehicle, along with a valve arrangement to manage air flow efficiently, reducing noise and maintaining air pressure, and the pump is designed as a radial or annular gap type for compactness and versatility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pump is used to inflate the inflatable element, then the inflatable element can be filled with air, but noise is generated that is audible and disruptive during sleep
Solution Approach 1:
The pump is extracted from the living space and placed in a separate location (such as a storage compartment or exterior housing), isolating the noise source from the sleeping area. This allows the inflation function to be maintained while the harmful noise is removed from the environment where comfort is needed.
Solution Approach 2:
A flexible hose or conduit acts as an intermediary between the pump and the inflatable element, allowing air to be transferred over a distance. This enables the pump to be positioned away from the living space while still effectively inflating the mattress or cushion inside the living area.
2Loss of energy
If the pump is positioned close to the inflatable element for efficient air delivery, then air loss is reduced, but noise becomes more disruptive to sleep
Solution Approach 1:
The pump is extracted from the immediate vicinity of the inflatable element and placed in a separate location. A flexible hose connects the two, allowing the pump to be positioned in a noise-isolated area while maintaining efficient air delivery through the hose connection, thus reducing both air loss and noise disruption.
Solution Approach 2:
The system transitions from a direct adjacent positioning to a distributed arrangement where the pump and inflatable element are separated in space but connected through a three-dimensional flexible conduit system, allowing optimal positioning for both efficiency and noise reduction.
3Reliability
If the pump runs continuously to compensate for air loss, then the inflatable element maintains pressure, but noise disruption increases
Solution Approach 1:
The pump is relocated to a separate housing or storage compartment away from the sleeping area. This allows the pump to operate continuously or periodically to maintain air pressure in the inflatable element without the noise being disruptive to sleep, as the sound source is isolated from the living space.
4Ease of operation
If the pump is integrated into the living space for convenience, then access is improved, but noise and air loss affect comfort
Solution Approach 1:
The pump is extracted from the living space and placed in an exterior housing or storage compartment. A flexible hose provides access for inflation and deflation operations, maintaining ease of operation while removing the noise and air loss issues from the living environment.
Solution Approach 2:
The flexible hose serves as an intermediary that extends the pump's functionality into the living space without requiring the pump itself to be located there. This allows convenient access for inflation and deflation while keeping the noise-generating pump outside the living area.
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 solution significantly reduces perceivable noise during operation and maintains air pressure in inflatable elements, enhancing sleep quality and comfort by isolating pump noise and ensuring reliable air delivery.
Implementation Method 1
at least one fan is provided which is arranged on a housing wall of the housing, wherein the fan generates an air flow along an axis of the fan and wherein the axis of the fan runs along a direction which is directed from the fan to a cooling element, in particular a cooling plate, of the pump
Implementation Method 2
at least one pump which serves at least to compress air
Data Source
Figure 1~2
Figure 3
AI summary
Arrangement (2) for a recreational vehicle (1), in particular a motorhome or caravan, comprising at least one pump (3) for compressing air, a valve arrangement (4) comprising at least one valve (5A-5E), and at least one inflatable element (6, 7) of the recreational vehicle (1), in particular an inflatable side wall (7) of a pop-up roof (30) and/or an inflatable mattress (6). During operation, air compressed by the pump (3) can be directed via the valve arrangement (4) to the at least one inflatable element (6, 7). Furthermore, a sound-insulating housing (8) is provided in which at least one pump (3) is arranged, and at least one fan (9) is provided, which is arranged on a housing wall (10) of the housing (8).The fan (9) generates an airflow along an axis (15) of the fan (9), the axis (15) of the fan (9) extending in a direction (16) that is directed from the fan (9) towards a cooling element (17), in particular a cooling plate (17), of the pump (3). Furthermore, a recreational vehicle (1) with such an arrangement (2) is specified.