Compressor Soundproofing Layout to Prevent Drainage Absorption
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In heat pump water-heater outdoor units, the soundproofing material covering the compressor can absorb drainage that collects on the bottom plate, leading to corrosion and degradation of soundproofing properties, especially when the unit is installed at an angle.
Innovation Solution
A heat pump water-heater outdoor unit design featuring a soundproofing material placement portion on the bottom plate that covers the corner closest to the compressor and arcs around its periphery, positioning the lower end of the soundproofing material higher than the bottom surface to prevent water absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the soundproofing material is placed directly on the bottom plate to prevent drainage contact, then the compressor is protected from corrosion, but the soundproofing material cannot be properly positioned when the unit is tilted
Solution Approach 1:
The soundproofing material placement portion is designed to extend upward from the bottom plate, creating a vertical dimension that elevates the soundproofing material above the drainage level. This dimensional change ensures that even when the unit is tilted, the soundproofing material remains positioned above accumulated drainage, preventing water contact and corrosion while maintaining effective soundproofing.
2Reliability
If the soundproofing material placement portion is designed to arc around the compressor, then the soundproofing material is effectively protected from drainage, but the device complexity increases
Solution Approach 1:
The soundproofing material placement portion is designed as an arc-shaped structure that conforms to the contour of the compressor. This curved design naturally directs drainage away from the soundproofing material while maintaining a relatively simple single-piece structure that can be integrated into the bottom plate without requiring multiple complex components.
3Reliability
If the soundproofing material is elevated above the bottom surface, then drainage contact is prevented, but the area available for soundproofing coverage is reduced
Solution Approach 1:
The soundproofing material placement portion is strategically positioned only at the critical area where drainage accumulates (the corner closest to the compressor). This localized elevation approach prevents water contact at the most vulnerable point while maintaining full soundproofing coverage over the entire compressor surface, optimizing both protection and coverage 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
This design effectively prevents the soundproofing material from absorbing drainage, thus protecting the compressor from corrosion and maintaining soundproofing effectiveness regardless of installation environment tilts.
Implementation Method 1
The soundproofing material includes a substance having water absorption properties such as, e.g., felt. When the soundproofing material absorbs the drainage, there is a possibility that the compressor will be corroded by water in the drainage.
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
A heat pump water-heater outdoor unit has a bottom plate which has a rectangular bottom surface, a compressor which is provided on the bottom plate and compresses a refrigerant, a soundproofing material which covers a side surface of the compressor, and a soundproofing material placement portion which is provided on the bottom plate and holds a lower end of the soundproofing material at a position higher than the bottom surface. The soundproofing material placement portion covers corner portion that is closest to the compressor out of corner portions of the bottom plate. The bottom plate includes an edge portion which extends upward from each side of the bottom surface. The soundproofing material placement portion holds the lower end of the soundproofing material at a position higher than an upper end of the edge portion.