Dishwasher Sprinkler with Movable Arm for Corner Cleaning Coverage
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Solution Overview
Problem
Conventional sprinkler devices in dishwashers struggle to effectively supply cleaning fluid to the corners of rectangular cleaning chambers, leading to inadequate cleaning of dishes positioned near the corners, and existing solutions either complicate production or increase costs.
Innovation Solution
A sprinkler device with a rotatable carrier body, fixed and movable arms, and a movement mechanism outside the carrier body, allowing the movable arm to extend towards corners without external energy, reducing production costs and maintaining efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the sprinkler arm is extended towards the corners using a telescopic connection with a movement line, then the cleaning fluid can reach the corners of the cleaning chamber more effectively, but extra space is required in the cleaning chamber and the production process becomes more complicated
Solution Approach 1:
The movable arm is extracted from the carrier body as a separate component that can be independently positioned. The arm can be extended or retracted relative to the carrier body without requiring a complex telescopic connection system within the carrier body itself, simplifying the overall structure while maintaining corner-reach capability
Solution Approach 2:
The sprinkler device incorporates a movable arm that can dynamically adjust its position between extended and retracted states. This dynamic adjustment allows the arm to reach corner areas when needed while maintaining a compact configuration during rotation, eliminating the need for permanent extra space and complex production assemblies
2Area of stationary object
If the movable arm is extended to reach corners, then cleaning coverage is improved, but the machine's volume and energy consumption increase
Solution Approach 1:
The movable arm transitions from a static extended structure to a dynamic component that extends only when needed for corner cleaning. During normal rotation operations, the arm remains retracted, maintaining a compact machine volume. The arm extends dynamically to reach corners during specific phases of the cleaning cycle, providing full coverage without permanent volume increase
Solution Approach 2:
The movable arm operates periodically, extending to reach corners at specific intervals during the cleaning cycle when the carrier body is in appropriate positions. This periodic extension provides comprehensive cleaning coverage while keeping the arm retracted for most of the operation time, avoiding continuous volume occupation and reducing energy consumption compared to continuously extended configurations
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 ensures effective cleaning fluid distribution across the entire cleaning chamber without increasing the machine's volume or energy consumption, reducing maintenance and technical service costs.
Implementation Method 1
the spray arm causes the sprinkler device to rotate about an axis by the action of the water exiting the angular nozzle (water jet)
Implementation Method 2
spraying a cleaning fluid onto the dishes
Data Source
AI summary
A sprinkler device (T) according to the present invention which is suitable for use in a dishwasher (B) comprising a cleaning chamber (B1), for spraying a cleaning fluid onto the dishes by positioning it to rotate about a first axis (E1) comprises a carrier body (T1) which is rotatable about the first axis (E1); a fixed arm (T2) which is located on the carrier body (T1), which is fixed relative to the carrier body (T1) and rotatable with the carrier body (T1), which has a one hole (P) thereon, and through which the cleaning fluid is sprayed on the dishes through the hole (P) to thus rotate the carrier body (T1); a movable arm (T3) which is connected with an edge of the carrier body (T1), a part of which passes through an opening on the edge of the carrier body (T1) and projects from the carrier body (T1), which has a hole (P) thereon, which allows the carrier body (T1) to rotate about the first axis (E1) by spraying, through the hole (P), the cleaning fluid passing therethrough by means of a passage opening on its side facing the carrier bod (T1), which is movable towards the center of the carrier body (T1); a movement mechanism located outside the carrier body (T1), which enables said movement of the movable arm (T3) by means of the rotational movement of the carrier body (T1); and a transmission mechanism which transmits the movement received from the movement mechanism to the movable arm (T3).