Dishwasher Pump Pot Drainage Layout for Leakage Diversion
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Solution Overview
Problem
Existing dishwashers face issues with reliable leakage protection when tilted, as the crescent-shaped collecting channel can form a liquid sink, causing leakage liquid to accumulate and potentially drip onto electrical components, risking damage.
Innovation Solution
A collecting trough with a diverting element is implemented, which directs leakage liquid past electrical components, and includes a liquid outlet opening leading to a drip nozzle and a diverter rib that directs the liquid to a safety float, ensuring reliable drainage even when the dishwasher is tilted.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a crescent-shaped collecting channel is used to collect leakage liquid, then leakage protection is improved, but when the dishwasher is tilted, the central region forms a liquid sink causing liquid to accumulate and potentially drip onto electrical components
Solution Approach 1:
The collecting channel is divided into multiple drainage paths: a first drainage path with a first outlet opening and a second drainage path with a second outlet opening. This segmentation ensures that liquid can drain through multiple routes, preventing accumulation in the central region even when tilted.
Solution Approach 2:
Different regions of the collecting channel are designed with different functions: the central region includes outlet openings for drainage, while the end regions are positioned to drain toward specific areas. This local differentiation ensures effective drainage regardless of tilt direction.
2Device complexity
If electrical components are arranged directly on the pump pot in a space-saving manner, then device complexity is reduced, but the collecting channel must extend at a large circumferential angle taking up more space
Solution Approach 1:
The drainage function is extracted from the traditional continuous crescent-shaped channel and implemented through discrete outlet openings in the pump pot base. This allows the collecting channel to be more compact while still providing effective drainage through the extracted drainage paths.
3Length of stationary object
If the collecting channel is designed with small channel height due to limited space between pump pot and washing container, then space utilization is improved, but capillary action may override drainage function
Solution Approach 1:
Outlet openings are provided in the pump pot base to establish drainage paths before liquid can accumulate. This preliminary drainage action prevents liquid from rising high enough for capillary action to become dominant, ensuring drainage reliability despite the small channel height.
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 effectively guides leakage liquid away from electrical components, preventing damage and ensuring reliable operation even in tilted positions without the need for complex covers or additional protection measures.
Implementation Method 1
the diverting element is arranged approximately centrally between the two end sides of the collecting channel
Implementation Method 2
If the gap is too small, the capillary action in this gap can override the drainage function of the collecting channel
Data Source
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AI summary
The invention relates to a dishwasher with a washing container (4) and a pump pot (3) arranged under the washing container base (17), to which a retaining means is assigned, which catches leakage liquid in the event of a liquid leakage occurring via the upper edge of the pump pot. According to the invention, the retaining means is designed as a collecting channel (31), which is assigned at least one diverting element (35), which diverts the leakage liquid collected in the collecting channel (31) past electrical components (9, 11, 15) arranged in the area of the pump pot (3). .