A laundry dryer machine having a filter for condensed water
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Solution Overview
Problem
Laundry dryer machines face challenges in maintaining a clean hydraulic circuit and removable drain container due to impurities carried by condensed water, requiring frequent maintenance and cleaning, and also struggle to keep the condenser and air filters in a satisfactory state.
Innovation Solution
Incorporating a collection tank with filtering means, featuring two parallel walls with offset slots to trap impurities in the condensed water, preventing them from reaching the pump and ensuring effective filtration without hindering water flow, along with a rinsing mechanism to maintain cleanliness without laborious procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a collection tank is used to collect condensed water, then the condensed water can be gathered and pumped to the drain container, but impurities in the condensed water will contaminate the hydraulic circuit and pump, requiring frequent maintenance and cleaning
Solution Approach 1:
The patent applies preliminary action by installing filtering means at the bottom of the collection tank before the condensed water enters the hydraulic circuit and pump. The filtering means pre-remove impurities from the condensed water, preventing contamination of downstream components. This preliminary filtration action eliminates the need for frequent maintenance and cleaning of the hydraulic circuit and pump, resolving the contradiction between reliability and ease of operation.
2Reliability
If filtering means are added to remove impurities from condensed water, then the hydraulic circuit remains clean, but the device complexity increases
Solution Approach 1:
The patent employs porous materials by using filtering means with a porous structure at the bottom of the collection tank. This porous filter allows condensed water to pass through while trapping impurities, achieving effective filtration without adding complex mechanical components. The simple porous structure maintains device simplicity while ensuring the hydraulic circuit remains clean, resolving the contradiction between reliability and device complexity.
3Reliability
If filters are installed in the condenser and air outlet, then the condenser and air filter remain clean, but the device complexity and maintenance burden increase
Solution Approach 1:
The patent applies the taking out principle by extracting the filtration function from the condenser and air filter systems and concentrating it in a single collection tank with filtering means. Instead of installing multiple filters throughout the system, all impurity removal is performed at one location where condensed water is collected. This centralized extraction of the filtration function simplifies the overall device structure and reduces maintenance complexity while keeping the condenser and air filter clean.
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
The solution effectively maintains the hydraulic circuit, air filter, and condenser in a clean state without requiring burdensome maintenance, ensuring a simple and cost-effective structure for the laundry dryer machine.
Implementation Method 1
a collection tank provided with filtering means, designed to trap the impurities in the condensed water
Implementation Method 2
a condenser for removing the moisture contained in the drying air at the exit of the rotary drum
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The present invention concerns a laundry dryer machine comprising a rotary drum (13) with a cavity (41) for receiving the laundry to be dried, heating means (14) for heating a drying air, a condenser (15) for removing moisture from the drying air and conveying means (16), for successively circulating the drying air through the drum (13), the condenser (15) and the heating means (14), the machine further comprising a collection tank (30) for collecting by gravity the water condensed in the condenser (15) and means (31) for drawing the water collected in said tank (30). The machine also comprises means for carrying the condensed water from the condenser (15) to a first area (40) of the collection tank (30), said drawing means (31) being adapted to draw water from a second area (41) of the tank (30), water filtering means (43, 44) being provided between the first (40) and the second (41) areas.