Dishwasher with heat pump
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Solution Overview
Problem
Conventional dishwashers with heat pump systems experience higher noise levels and electronic component overheating, leading to malfunctions due to the compressor and electrical components heating up excessively.
Innovation Solution
The dishwasher incorporates a heat pump system with a condenser acting as a heater, where the condenser and its chamber are fixed on a bearing plate, and the evaporator is placed below, using elastic feet to dampen vibrations and an electronic card housing suspended between the bearing plate and evaporator cabinet to facilitate cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a heat pump system with compressor is used for water heating, then energy efficiency is improved, but noise level increases
Solution Approach 1:
Elastic feet are introduced as intermediary elements between the condenser bearing plate and the evaporator cabinet/chassis. These elastic feet act as vibration isolators that absorb and dampen mechanical vibrations generated by the compressor, preventing their transmission to the dishwasher body and thereby reducing noise levels while maintaining the heat pump system's energy efficiency
Solution Approach 2:
The vibrations and heat generated by the compressor and heat pump system, which are harmful factors, are converted into beneficial effects. The elastic feet convert vibration energy into dampened mechanical energy, while the heat generated is utilized for water heating through the condenser, transforming previously harmful thermal energy into a useful resource
2Adaptability or versatility
If electrical components are placed in the heat pump system, then system functionality is improved, but temperature of electronic card increases causing malfunctions
Solution Approach 1:
The electronic card housing is positioned in a three-dimensional space between the condenser bearing plate and the evaporator cabinet, utilizing the vertical dimension and available gap space. This spatial arrangement allows the electronic components to be located away from heat-generating components while still being integrated into the system, enabling effective thermal management through proximity to the evaporator's cooling airflow
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 configuration enables silent operation by reducing noise and prevents electronic component malfunctions by effectively cooling the control card, ensuring reliable operation.
Implementation Method 1
The feet of elastic structure damp the vibrations forming on the condenser during operation of the compressor provided in the heat pump system, and prevent the vibrations from reaching the evaporator cabinet
Implementation Method 2
The electronic card housing is placed by being suspended to the elastic feet in the space between the condenser bearing plate and the evaporator cabinet, enabling cooling of the electronic card through the air passed via the evaporator by the evaporator fan
Implementation Method 3
the condenser acts as a heater, and the washing water is heated by the condenser placed in a chamber
Data Source
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AI summary
The present invention relates to a dishwasher comprising a body (2), a tub (3) in which washing, rinsing and drying is performed, at least one basket (4) in which the items to be washed are placed, a circulation pump (6) enabling sending of the washing water on the items to be washed by means of at least one spray arm (5), a valve (7) of multi-port type directing the washing water to the spray arms (5), and a heat pump system (8) provided on the lower side of the tub (3), enabling heating of the washing water and used in drying process.