Clothes drying device
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Solution Overview
Problem
Conventional heat pump type washer-dryers face challenges with water discharge and energy efficiency due to the arrangement of heat pump components, which leads to increased complexity and high wind resistance from long ventilation pipelines.
Innovation Solution
The design includes an obliquely arranged evaporator and condenser within a casing, with a draught fan and a drainage system that eliminates the need for additional pumps and long air ducts, optimizing energy efficiency and space usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the heat pump system components (compressor, evaporator, condenser) are arranged at the bottom of the washer-dryer, then the available space at the bottom is utilized, but additional drainage pumps are required and the structure becomes complicated
Solution Approach 1:
The patent transitions from a horizontal arrangement of heat pump components at the bottom to a vertical arrangement where the evaporator and condenser are positioned above the drum. This dimensional change allows condensate water to flow downward by gravity into the drainage pump without requiring additional pumps or complex piping, thus resolving the contradiction between space utilization and structural complexity.
2Volume of moving object
If the heat pump system is arranged at the bottom, then space is utilized, but long ventilation pipelines are required which generate large wind resistance
Solution Approach 1:
By repositioning the evaporator and condenser vertically above the drum rather than horizontally at the bottom, the ventilation pipeline length is significantly reduced. This dimensional rearrangement minimizes wind resistance and energy loss while still effectively utilizing the available space within the washer-dryer structure.
3Ease of manufacture
If conventional horizontal arrangement is used, then manufacturing is simplified, but condensate water cannot flow into drainage pump spontaneously
Solution Approach 1:
The vertical positioning of the evaporator and condenser above the drum creates a natural gravity-driven flow path for condensate water. This dimensional change eliminates the need for complex drainage piping while ensuring efficient water discharge into the drainage pump, thus resolving the contradiction between manufacturing simplicity and operational 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
This configuration enhances energy efficiency, reduces the volume of the drying device, and prevents condensate water from re-entering the drum, improving the overall performance and reducing costs.
Implementation Method 1
an evaporator and a condenser... the evaporator is located between the draught fan and the condenser
Implementation Method 2
a draught fan... configured to induce air to be drawn in from the drum through the inducing pipe
Implementation Method 3
a heat pump system... including a compressor, an evaporator and a condenser which are connected via refrigerant connecting pipelines
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A clothes drying device includes a housing, a drying system, and a drum (11), and the drying system and the drum (11) are arranged in the housing. The drying system includes a compressor (21), a draught fan (31), a casing (3), a throttling device, an evaporator (23) and a condenser (22). The casing (3) includes an inducing pipe (30) and a main body portion, the main body portion of the casing (3) includes a draught fan fixing portion (331), a condenser accommodating portion (321) and an evaporator accommodating portion (322). The evaporator (23) is arranged at an angle with respect to a horizontal direction, the condenser (22) is arranged in the condenser accommodating portion of the casing at an angle with respect to the horizontal direction, and the evaporator (23) is located between the draught fan (31) and the condenser (22). The evaporator (23) and the condenser (22) are located laterally above the drum (11); and the casing (3) has a high point A at a portion where the condenser accommodating portion is arranged and a high point B at a portion where the evaporator accommodating portion is arranged, and the high point A is approximately same as the high point B. The drying system has a relatively small volume, and is easy to install.