Dishwasher Door Dosing Reservoir With Movable Detergent Pipe
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Solution Overview
Problem
Automatic dishwashers require manual dosing of cleaning agents for each cycle, which is inconvenient and can lead to clumping, reducing user experience and machine reliability.
Innovation Solution
A dosing device with a movable pipe connects the cleaning agent reservoir to the washing compartment, allowing for automated delivery only when needed, preventing moisture ingress and simplifying handling, and featuring a flexible tube for easy cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual dosing of cleaning agent is required for each cycle, then the user can control the amount of cleaning agent used, but the operation becomes inconvenient and time-consuming
Solution Approach 1:
The dosing device pre-fills a reservoir with cleaning agent before the washing cycle begins. The reservoir is automatically positioned and connected to the dispensing system, eliminating the need for users to manually dose cleaning agent during each cycle. This preliminary preparation of dosing materials resolves the contradiction by automating what would otherwise be a time-consuming manual operation.
2Reliability
If the pipe is fixed in position, then the structure is simple and reliable, but moisture can ingress into the reservoir causing cleaning agent clumping
Solution Approach 1:
The pipe connecting the reservoir to the dispensing system is designed to be movable rather than fixed. It can dynamically change its position - remaining retracted during storage to prevent moisture ingress into the reservoir, and extending during the washing cycle to enable cleaning agent delivery. This dynamic positioning resolves the contradiction by adapting the pipe's state to different operational requirements.
3Reliability
If the pipe is rigid, then the fluid connection is stable, but the pipe cannot be easily cleaned and maintained
Solution Approach 1:
The pipe is constructed from flexible material that allows it to be bent and manipulated during maintenance operations. During normal operation, the flexible pipe maintains a stable fluid connection between the reservoir and dispensing system. During cleaning, the pipe can be flexed and positioned to allow access for removing hardened cleaning agent residues, resolving the contradiction between connection stability and maintainability.
4Ease of operation
If a movable pipe is used, then moisture ingress is prevented and the device is easier to maintain, but the device complexity increases
Solution Approach 1:
The movable pipe system is designed to be automatically positioned by the dosing device's control mechanism without requiring manual intervention. The pipe retracts and extends autonomously based on the operational state, and the connection to the reservoir is self-aligning. This self-service capability resolves the contradiction by minimizing the complexity burden on the user while maintaining the benefits of movability for prevention and maintenance.
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 eliminates the need for manual dosing, reduces clumping, and enhances user convenience and machine reliability by ensuring the cleaning agent is delivered efficiently and easily accessible for maintenance.
Implementation Method 1
the pipe (16) is designed to be movable such that a fluidic connection for introducing the cleaning agent into the washing compartment is given or interrupted, depending on the position of the pipe (16)
Implementation Method 2
the tube (16) is designed to be flexible and deformable
Data Source
Figure 1
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AI summary
The invention relates to an automatic dishwasher, in particular a household dishwasher, with a washing compartment (3) that provides a washing chamber (4) and has a loading opening (5), and with a washing chamber door (6) that is pivotably mounted about a horizontal pivot axis for fluid-tight sealing of the loading opening ( 5) and with a dosing device (7) provided by the washing chamber door (6) for the metered delivery of pourable cleaning agent, the dosing device (7) having a reservoir for storing cleaning agent for a plurality of cleaning cycles, the dosing device (7) having a cleaning agent delivery opening (14) and the washing compartment door (6) have a detergent outlet (8) opening into the washing compartment (4), with a pipe (16) providing a discharge channel (17) being provided for the fluidic connection of detergent delivery opening (14) and detergent outlet (8). , there s is designed to be movable.