Heat Pump Mounting Box Airflow Guidance for Dryer Performance
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Solution Overview
Problem
In heat pump dryers or washer-driers, the obstruction of fins in the evaporator and condenser limits drying air flow to only the center, resulting in low air utilization and poor drying performance.
Innovation Solution
A heat pump mounting box with an air guide wall and passage design that directs drying air from the two-device mounting chamber directly into the fan air inlet, enhancing air utilization and drying efficiency by using a combination of arc and straight segments to guide air from the longitudinal side walls into the fan inlet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If drying air flows through the center of the two-device mounting chamber, then the air can enter the fan air inlet directly, but the air utilization rate is low and drying performance is poor
Solution Approach 1:
The air guide wall is divided into multiple segments including a first air guide sub-wall and a second air guide sub-wall, each with outer arc segments and inner arc segments. This segmentation allows different portions of the mounting chamber to be guided independently, enabling comprehensive air collection from all regions while maintaining direct airflow to the fan inlet.
Solution Approach 2:
The air guide wall extends into the mounting chamber from the fan air inlet side, creating a three-dimensional air guidance structure. The arc segments protrude into the chamber volume, transforming the air flow path from a restricted center-line flow to a multi-dimensional flow pattern that collects air from longitudinal side walls and directs it to the fan inlet.
2Temperature
If fins of evaporator and condenser are present, then heat exchange function is provided, but they obstruct drying air flow
Solution Approach 1:
The air guide wall acts as an intermediary structure between the evaporator and condenser fins and the fan air inlet. It creates a dedicated airflow channel that guides air around the heat exchange devices, allowing the fins to perform their heat exchange function while preventing them from obstructing the overall air flow path to the fan inlet.
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 significantly improves the utilization rate of drying air and enhances clothes drying performance by ensuring all drying air enters the fan inlet, facilitating better heat exchange and circulation within the system.
Implementation Method 1
an air guide wall configured to guide air in the two-device mounting chamber into the fan air inlet
Implementation Method 2
facilitating better heat exchange and circulation within the system
Data Source
AI summary
A heat pump mounting box for a heat pump drier or washer-drier, and a heat pump drier or washer-drier having the same are provided. The heat pump mounting box includes a base provided with an air suction port, a two-device mounting chamber, a fan mounting chamber, and a fan air inlet for communicating the two-device mounting chamber and the fan mounting chamber; an air passage guide plate mounted to the base and defining, together with the base, an air guide passage that has a drying air inlet in communication with the air suction port and a drying air outlet in communication with the two-device mounting chamber; an air guide wall disposed in the two-device mounting chamber and opposite the drying air outlet; and a cover plate mounted over the base and at least covering the two-device mounting chamber. The heat pump mounting box according to the present invention has a high utilization rate of the drying air and a good drying performance.