Device for heating a treatment liquid for a laundry treatment device and laundry treatment device
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Solution Overview
Problem
Laundry treatment appliances, such as washing machines and washer-dryers, face inefficiencies in heating treatment liquids due to reliance on electric heaters, which consume expensive energy and produce CO2 emissions.
Innovation Solution
A device utilizing a heat pump system with a condenser to heat treatment liquids, where the evaporator extracts thermal energy from fluids or process air, and a distribution device switches between fluid and air interfaces based on operating states to optimize energy use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If electric heaters are used to heat treatment liquid, then heating function is achieved, but energy consumption is high and CO2 emissions occur
Solution Approach 1:
The patent changes the heating method from direct electrical resistance heating to heat pump-based heating, fundamentally altering the energy conversion parameters. The heat pump system converts electrical energy into mechanical work to drive the refrigeration cycle, achieving heating with much higher energy efficiency and lower environmental impact
Solution Approach 2:
The patent utilizes phase transitions of refrigerant (evaporation and condensation) to transfer heat. The refrigerant absorbs heat during evaporation in the evaporator and releases heat during condensation in the condenser, enabling efficient heat transfer from the treatment liquid to the refrigeration system and back, reducing overall energy consumption
2Use of energy by moving object
If heat pump system is used to heat treatment liquid, then energy efficiency is improved, but device complexity increases
Solution Approach 1:
The patent designs the heat pump system to serve multiple functions: heating the treatment liquid during washing, drying laundry during drying cycles, and potentially providing domestic hot water. This multi-functionality justifies the increased device complexity by delivering multiple benefits from a single integrated system
Solution Approach 2:
The patent introduces a refrigerant as an intermediary substance to transfer heat between different components. The refrigerant circulates through the evaporator, compressor, condenser, and expansion valve, mediating heat transfer between the treatment liquid, ambient air, and laundry, simplifying the overall heat management architecture
3Adaptability or versatility
If distribution device is added to switch between fluid and air interfaces, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent implements a dynamic distribution device that can switch between different operating modes (washing and drying) by redirecting fluid flow paths. The distribution device dynamically connects or disconnects the evaporator and condenser to different interfaces based on the current operating state, enabling the system to adapt to varying operational requirements
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 approach significantly reduces electrical energy consumption and enhances energy efficiency by leveraging heat pump technology for both washing and drying processes, offering a more environmentally friendly and cost-effective heating method.
Implementation Method 1
an evaporator which is designed to evaporate a liquid refrigerant using a fluid for providing thermal energy and to provide it as a gaseous refrigerant
Implementation Method 2
a condenser configured to heat the treatment liquid using the gaseous refrigerant and provide it as the heated treatment liquid
Data Source
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AI summary
The invention relates to a device (102) for heating a treatment liquid for a laundry treatment appliance (100), in particular a washing machine or a washer-dryer. The device has an inlet-side circulation interface (106) for supplying the treatment liquid from a laundry treatment chamber (104) of the laundry treatment appliance (100), an evaporator (112) which is designed to evaporate a liquid refrigerant using a fluid to provide thermal energy and to provide as a gaseous refrigerant, a condenser (114) which is designed to heat the treatment liquid using the gaseous refrigerant and to provide it as a heated treatment liquid, and an outlet-side circulation interface (108) for discharging the heated treatment liquid to the laundry treatment room (104) on.