Cable-Suspended Circulation Pump for Dishwasher Vibration Isolation
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Solution Overview
Problem
Conventional dishwashing appliances face issues with excessive noise generation and increased installation complexity due to rigid connections between the circulation pump and sump, which transfer vibrations and require multiple connection points.
Innovation Solution
The circulation pump is suspended using a mounting cable, allowing it to be connected to the tub or sump, thereby reducing vibration transfer and simplifying the installation process by providing a more flexible and efficient mounting mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the circulation pump is rigidly connected to the sump, then the connection is stable and reliable, but vibrations are transferred to the sump resulting in excessive noise generation
Solution Approach 1:
A mounting cable is introduced as an intermediary element between the circulation pump and the sump. The cable allows the pump to be suspended from the sump while isolating vibrations, thus maintaining connection reliability while reducing noise transmission to the sump.
2Reliability
If multiple connection points are used to connect the circulation pump to the sump, then the connection is more stable, but the installation time and difficulty increase
Solution Approach 1:
The mounting connection is segmented into a single cable element that attaches at two points (one at the sump, one at the pump). This segmentation simplifies the installation process compared to conventional multi-point rigid connections, reducing installation time while maintaining connection stability through the cable's inherent flexibility and strength.
Data Source
AI summary
A dishwashing appliance includes a tub defining a wash chamber for receipt of articles for washing. A sump is a sump positioned at a bottom of the wash chamber for receiving fluid from the wash chamber. A circulation pump is connected to the sump. The dishwashing appliance also includes a mounting cable extending from the circulation pump. The circulation pump is suspended by the mounting cable.