Laundry washing apparatus
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Solution Overview
Problem
Conventional laundry processing apparatuses face issues such as low detergent solubility, slow cloth wetting, limited contact between the impeller and laundry, excessive wear due to high rotational speeds, increased component costs, and potential performance reduction due to water penetration in power transmission portions.
Innovation Solution
A laundry processing apparatus with a pulsator and blade that rotate independently, using a single driving motor to transmit power through a gear module outside the outer tub, which increases the rotational speed of the blade and decreases the pulsator's speed, enhancing pumping pressure and reducing wear while maintaining efficient water flow and detergent solubility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a separate circulation pump is provided to pump washing water to the upper portion of the washing tub, then washing water circulation and cloth wetting are improved, but manufacturing cost and control complexity increase
Solution Approach 1:
The patent combines the circulation pump function with the existing driving motor by integrating a blade that rotates independently from the pulsator. The blade is driven by the same motor through a gear module, merging two functions (pulsating and pumping) into a single motor system, thereby reducing component count and control complexity while maintaining washing water circulation efficiency
2Speed
If the pulsator rotates at high speed to increase water flow, then washing water circulation is improved, but wear on laundry increases
Solution Approach 1:
The patent segments the rotation function into two independent components: the pulsator and the blade. The pulsator rotates at a lower speed to minimize laundry wear, while the blade rotates at a higher speed (driven by the same motor through gear reduction) to generate sufficient pumping pressure and water flow circulation. This segmentation allows each component to operate at optimal speeds for their specific functions
3Device complexity
If detergent dissolving and cloth wetting are accomplished by rotating only the pulsator, then the structure is simple, but washing performance is lowered due to low detergent solubility and slow wetting
Solution Approach 1:
The patent segments the water circulation function by introducing a separate blade that rotates independently from the pulsator. The blade creates strong water currents that rapidly distribute washing water and detergent throughout the drum, significantly improving detergent dissolving speed and cloth wetting efficiency while maintaining structural simplicity through shared motor drive
4Adaptability or versatility
If the pulsator and blade are driven by separate motors, then rotational speed control is flexible, but manufacturing cost and device complexity increase
Solution Approach 1:
The patent introduces a gear module as an intermediary mechanism between the single driving motor and the two rotating components (pulsator and blade). The gear module differentially transmits rotational speed and torque to each component, allowing the pulsator to rotate at a lower speed for gentle washing while the blade rotates at a higher speed for effective pumping, all controlled by a single motor
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 solution enables rapid detergent dissolving and cloth wetting with reduced water usage, simplifies motor control, reduces wear on laundry, and enhances the waterproofing of the power transmission portion, improving overall washing efficiency and reducing operational costs.
Implementation Method 1
a gear module which transmits a rotational force of the washing shaft to the pulsator connecting shaft and the blade connecting shaft respectively
Implementation Method 2
the gear module transmits a rotational force of the washing shaft to the pulsator connecting shaft and the blade connecting shaft respectively... increases the rotational speed of the blade... enhancing pumping pressure
Data Source
AI summary
A laundry processing apparatus includes an outer tub for accommodating washing water therein, an inner tub disposed inside the outer tub and containing laundry therein, a pulsator provided in a lower portion of the inner tub, a blade provided below the pulsator, a driving motor disposed outside the outer tub for rotating a washing shaft, a pulsator connecting shaft penetrating a lower side surface of the outer tub for rotating the pulsator, a blade connecting shaft which also penetrates a lower side surface of the outer tub for rotating the blade, and a gear module disposed outside the outer tub for transmitting a rotational force of the washing shaft to the pulsator connecting shaft and the blade connecting shaft respectively.