Heat pump dishwasher
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Solution Overview
Problem
The accumulation of condensed water in the installation cavity of a heat pump dishwasher leads to rusting and potential safety hazards for electrical components due to prolonged contact.
Innovation Solution
A heat pump dishwasher design featuring a liquid collecting groove at the chassis with a compressor installed, supported by a supporting member, and a liquid storage box with a heat transfer fluid, which evaporates condensed water using the compressor's heat, preventing long-term accumulation and cooling the compressor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the compressor is installed directly on the chassis without a liquid collecting groove, then the structure is simpler, but condensed water accumulates causing rust and safety hazards
Solution Approach 1:
The chassis is segmented by adding a liquid collecting groove that divides the installation cavity into a dry area (where electrical components are located) and a wet area (where condensed water collects). This segmentation prevents condensed water from contacting electrical components, eliminating rust and safety hazards while maintaining structural integrity.
Solution Approach 2:
The liquid collecting groove acts as an intermediary structure between the condensed water source and the electrical components. It intercepts and collects condensed water before it can reach the electrical components, serving as a protective barrier that prevents direct contact and potential damage.
2Reliability
If the compressor is installed away from the liquid collecting groove, then condensed water collection is improved, but the compressor cannot utilize the heat for evaporating condensed water
Solution Approach 1:
The compressor installation position is merged with the liquid collecting groove, combining two functions into one location: (1) collecting condensed water that falls during heat pump operation, and (2) utilizing the compressor's waste heat to evaporate the collected condensed water. This merging eliminates corrosion risks while recovering thermal energy.
Solution Approach 2:
The compressor's waste heat, which would otherwise be dissipated as useless thermal energy, is converted into a beneficial resource for evaporating condensed water. By positioning the compressor at the liquid collecting groove, the harmful effect of waste heat is transformed into a useful function that prevents corrosion and improves 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
Effectively collects and evaporates condensed water, preventing corrosion and ensuring safe operation by maintaining electrical components, while also reducing noise and compacting the dishwasher's structure.
Implementation Method 1
the condensed water in the liquid collecting groove will be evaporated due to the heat released by the compressor during the operation process
Implementation Method 2
Heat transmission usually occurs when the heat pump dishwasher operates
Data Source
AI summary
A heat pump dishwasher includes a chassis and a heat pump system. A liquid collecting groove is provided at an upper side of the chassis. The heat pump system includes an evaporator and a compressor, both the evaporator and the compressor are installed at the chassis, and the compressor is installed at the liquid collecting groove. Condensed water may be collected, and condensation water may be avoided in the liquid collecting groove and may reduce the corrosion of the liquid collecting groove and may reduce interruptions to the operation of electrical components.