Detergent Solution Pump With Removable Chamber Filter
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Solution Overview
Problem
Conventional laundry care appliances face challenges in effectively pumping and cleaning the drain pump system, particularly in separating and maintaining the suction and pump-over pressure chambers, which complicates the cleaning process and requires additional maintenance components like fluff filters.
Innovation Solution
A drain pump design with a filter element having a wall section that separates the suction and pump-over pressure chambers, allowing for fluid connection and easy removal for cleaning, combined with a compact design and a foreign body trap to eliminate the need for a fluff filter, utilizing a bayonet lock and brushless DC motor for efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a filter element is installed in the suction chamber to separate the suction chamber and pump-over pressure chamber, then the chambers are effectively separated and filtering is improved, but the cleaning process becomes more complex and time-consuming
Solution Approach 1:
The filter element is designed as a separate, removable component that divides the pump housing into suction chamber and pump-over pressure chamber. This segmentation allows the filter to be independently removed for cleaning without disassembling the entire pump, reducing cleaning time while maintaining effective chamber separation during operation.
Solution Approach 2:
The filter element can be easily extracted from the suction chamber through a filter housing opening. This extraction capability allows users to remove and clean the filter element separately, eliminating the need to disassemble the pump housing for maintenance, thus significantly reducing cleaning time while preserving chamber separation functionality.
2Productivity
If the pump housing is designed to separate suction and pump-over pressure chambers, then effective pumping is achieved, but the device becomes more complex and requires additional components
Solution Approach 1:
The filter element serves dual functions: it acts as a separator between the suction chamber and pump-over pressure chamber, and simultaneously functions as a filtering component. This merging of separation and filtration functions into a single component reduces device complexity while maintaining pumping efficiency.
Solution Approach 2:
The filter element with its integrated wall section performs multiple functions: chamber separation, fluid filtration, and structural support. This multi-functionality eliminates the need for separate separation structures, simplifying the overall pump design while ensuring effective pumping operation.
3Reliability
If a fluff filter is used to filter washing liquid, then filtration is improved, but maintenance requirements increase and the device becomes more complex
Solution Approach 1:
The filter element is designed to be easily extracted from the pump housing through a dedicated opening, allowing users to remove and clean the filter without special tools or complex disassembly procedures. This extraction design significantly reduces maintenance effort while maintaining effective filtration of washing liquid.
Solution Approach 2:
The filter element is positioned and designed to be accessible for user maintenance without requiring professional service or pump disassembly. Users can independently remove, clean, and reinstall the filter element, eliminating the need for specialized maintenance procedures and reducing overall maintenance complexity.
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 design simplifies the cleaning process, ensures effective separation of chambers, reduces maintenance needs, and maintains a compact and efficient operation of the drain pump, allowing for effective pumping and circulation without a fluff filter, enhancing the appliance's reliability and user experience.
Implementation Method 1
the filter element has a wall section which is arranged between the suction chamber and the pump-over pressure chamber in order to separate the suction chamber and the pump-over pressure chamber from one another
Implementation Method 2
the wall section having a wall opening to fluidly connect the suction chamber and the pumping pressure chamber with each other
Implementation Method 3
Drain pumps are used in conventional laundry care appliances in order to ensure that washing liquid is efficiently pumped out of the laundry care appliance through a pump-out line
Data Source
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AI summary
The invention relates to a laundry care appliance (100) having a detergent solution pump (105), wherein the detergent solution pump (150) has a suction chamber (107) having a suction connector (109) for fluidically connecting to a suction line, a recirculation pressure chamber (115) having a recirculation connector (117) for fluidically connecting to a recirculation line, and a drainage pressure chamber (111) having a drainage connector (113) for fluidically connecting to a drainage line, and a filter element (123) accommodated in the suction chamber (107). The filter element (123) has a wall section (125) arranged between the suction chamber (107) and the recirculation pressure chamber (115) in order to delimit the suction chamber (107) and the recirculation pressure chamber (115) from one another, wherein the wall section (125) has a wall opening (127) in order to fluidically connect the suction chamber (107) and the recirculation pressure chamber (115) with one another.