Detergent dispensing apparatus and dish washer
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Solution Overview
Problem
Existing detergent dispensing devices in dishwashers occupy large space and have inefficient storage, lacking in compact design and accurate detergent delivery mechanisms.
Innovation Solution
A detergent dispensing device with a storage box, discharge pump, and pipeline module, featuring separate storage cavities and channels for multiple detergents, and a discharge pump that accurately extracts and dispenses detergents, integrated with a sensing system for liquid level monitoring and one-way valves for stable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of stationary object
If a detergent dispensing device uses a compact storage box design, then space utilization is improved, but the storage capacity for multiple detergents is reduced
Solution Approach 1:
The storage box is divided into multiple storage cavities (first storage cavity, second storage cavity, third storage cavity) that are segmented by partition walls. Each cavity can store different types of detergents independently, allowing the compact storage box to accommodate multiple detergent types without requiring a single large undivided space, thus resolving the contradiction between compact size and multi-detergent storage capacity.
Solution Approach 2:
The patent utilizes three-dimensional spatial arrangement within the storage box, with storage cavities positioned at different heights and locations (upper, lower, front, rear positions). The pump accommodating space is integrated within the storage box structure, utilizing vertical and horizontal dimensions efficiently. This multi-dimensional space utilization allows the compact box to store multiple detergents while maintaining small overall volume.
2Device complexity
If the detergent dispensing device integrates the pump within the storage box, then device complexity is reduced, but the discharge pump accommodation space requirement increases
Solution Approach 1:
The pump accommodating space is merged with the storage box structure, where the discharge pump is positioned within the storage box and utilizes the same structural framework. The pipeline module is also integrated with the storage box, with filling channels, inlet channels, and outlet channels all connected to the storage cavities. This merging of components reduces the number of separate parts and simplifies the overall device structure while accommodating the pump within the existing storage volume.
Solution Approach 2:
The storage box serves multiple functions: it stores multiple types of detergents in separate cavities, accommodates the discharge pump within its structure, and provides mounting positions for the pipeline module. This multi-functionality allows the storage box to fulfill storage, structural support, and component housing roles simultaneously, reducing device complexity without requiring additional dedicated space for the pump.
3Quantity of substance
If separate storage cavities are used for different detergents, then detergent separation is improved, but the pipeline module complexity increases
Solution Approach 1:
The pipeline module is segmented into separate filling channels, inlet channels, and outlet channels that correspond to each storage cavity. The first filling channel connects to the first storage cavity, the second filling channel connects to the second storage cavity, and so on. This segmented pipeline architecture allows each channel to handle a specific detergent type independently, maintaining clear separation between different detergents while organizing the pipeline complexity into manageable, functionally-separated segments rather than a single complex integrated system.
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 device provides efficient storage and accurate dispensing of detergents, improving space utilization and operational reliability while maintaining compact dimensions and ensuring stable detergent delivery.
Implementation Method 1
The discharge pump is configured to suck the detergent from the storage cavity and to dispense the detergent to the outside of the detergent dispensing device
Implementation Method 2
The discharge pump is configured to suck the detergent from the storage cavity and to dispense the detergent to the outside of the detergent dispensing device
Data Source
Figure 1~2
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AI summary
A detergent dispensing apparatus 3 used for a dish washer and a dish washer comprising the detergent dispensing apparatus 3. The detergent dispensing apparatus 3 comprises a liquid storage box, a liquid outlet pump 32 and a pipeline module. The liquid storage box comprises a first half housing and a second half housing, and the first half housing and the second half housing fixedly connect each other in a first direction so as to define a liquid storage cavity used for storing detergent. The liquid outlet pump 32 is configured to suction the detergent from the liquid storage cavity and dispense the detergent to the exterior of the detergent dispensing apparatus 3. The pipeline module comprises a liquid adding channel used for adding the detergent to the liquid storage cavity, a liquid inlet channel used by the liquid outlet pump 32 for extracting the detergent from the liquid storage cavity, and a liquid outlet channel used by the liquid outlet pump 32 for dispensing the detergent. The second half housing defines at least a portion of a pump accommodating space that is used for accommodating the liquid outlet pump.