Laundry treating machine
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Solution Overview
Problem
Condensation type washing machines with drying functions face inefficiencies due to limited condensing duct area, leading to increased cooling water consumption and drying time, and operational issues from lint accumulation, which reduces condensing efficiency and poses risks to the heating system.
Innovation Solution
The design includes a tub with a larger condensing surface utilizing cooling water to enhance moisture removal from humid air, a lint filter to prevent lint introduction into the condensing system, and a filter cleaning device to maintain air flow and prevent overheating, along with an optimized air supply and heating system to improve drying efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a condensation type washing machine with a drying function uses a limited condensing duct area, then the machine structure remains compact, but cooling water consumption increases and drying time is extended
Solution Approach 1:
The patent transitions from a one-dimensional duct-based condensing system to a two-dimensional surface-based condensing system by forming a condensing film on the inner circumferential surface of the tub. This dimensional change dramatically increases the condensing area without increasing the machine's overall footprint, thereby reducing drying time while maintaining a compact structure.
Solution Approach 2:
The patent changes the physical state and distribution of the condensing medium from a confined duct flow to a widespread film coating on the tub surface. By altering how cooling water is applied (as a film rather than through ducts) and where it contacts the humid air (on the tub surface rather than in a duct), the system achieves much higher condensing efficiency and faster drying.
2Area of stationary object
If a condensation type washing machine with a drying function uses a limited condensing duct area, then the machine structure remains compact, but cooling water consumption increases
Solution Approach 1:
The patent transitions from a one-dimensional duct-based condensing system to a two-dimensional surface-based condensing system by forming a condensing film on the inner circumferential surface of the tub. This dimensional change dramatically increases the condensing area without increasing the machine's overall footprint, thereby reducing drying time while maintaining a compact structure.
Solution Approach 2:
The patent changes the physical state and distribution of the condensing medium from a confined duct flow to a widespread film coating on the tub surface. By altering how cooling water is applied (as a film rather than through ducts) and where it contacts the humid air (on the tub surface rather than in a duct), the system achieves much higher condensing efficiency and faster drying.
3Device complexity
If lint accumulates in the condensing system, then the system structure remains simple, but condensing efficiency decreases and overheating risks increase
Solution Approach 1:
The patent extracts the lint filtration function from the condensing system itself by introducing a separate lint filter in the air supply path. This separation allows the condensing system to focus solely on its condensing function without being compromised by lint accumulation, thereby maintaining high reliability and condensing efficiency.
Solution Approach 2:
The lint filter acts as an intermediary component between the air supply and the condensing system. It intercepts and removes lint particles before they can enter and accumulate in the condensing system, protecting the condensing surfaces and maintaining efficient heat and mass transfer.
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 reduces cooling water consumption, enhances condensing efficiency, prevents operational issues from lint accumulation, and ensures safer operation by maintaining air flow and preventing overheating, thereby improving the overall drying performance.
Implementation Method 1
cooling water to a rear inner surface of the tub, thereby generating condensed water
Implementation Method 2
remove moisture from the air using condensed water, heat the air
Data Source
AI summary
A laundry treating machine is provided. The laundry treating machine may include a tub to receive wash water, a drum rotatably provided in the tub, an air supply device to supply air to the tub, a lint filter to filter lint from the air circulated by the air supply device, a filter cleaning device to supply cleaning water to the lint filter to remove the lint from the lint filter, and a cooling water supply device to supply cooling water to an inner surface of the tub such that moisture contained in air is condensed at the inner surface of the tub.