Sealed Peristaltic Pump Layout for Tube Rupture Containment
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Solution Overview
Problem
Peristaltic pumps used in household appliances, particularly hair styling tools, face issues with hose wear leading to leaks or ruptures, which can cause liquid to spill into electrical components, posing safety risks and device malfunction.
Innovation Solution
A peristaltic pump design with a chamber containing a deformable tube, equipped with multiple sealing elements and a controlled drainage system to contain and direct liquid flow, ensuring it does not escape into the device, even in the event of a rupture, and a compact layout with angled connectors to minimize size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a peristaltic pump with deformable tube is used in household appliances, then fluid transport is simplified and sealed, but the tube deteriorates over time causing leaks or ruptures that spill liquid into electrical components
Solution Approach 1:
The patent applies beforehand cushioning by providing a sealed pump chamber that contains any potential liquid leakage before it can reach electrical components. The chamber acts as a pre-established protective barrier, ensuring that even if the deformable tube deteriorates or ruptures, the liquid remains confined and cannot cause damage to external components.
2Reliability
If the pump chamber is made completely sealed to prevent liquid leakage, then safety is improved, but compactness is reduced
Solution Approach 1:
The patent employs flexible shells and thin films by using a deformable tube within a sealed chamber. The deformable tube itself acts as a flexible containment structure that can be compressed during operation while maintaining the integrity of the overall sealed chamber. This approach provides effective liquid containment without requiring excessive chamber volume.
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 design effectively contains and directs liquid within the pump, preventing contact with electrical components and ensuring safe operation, even when the hose deteriorates, thus enhancing safety and reliability.
Implementation Method 1
a peristaltic pump moves a fluid, particularly water, to produce steam. The use of this type of pump results in a sealed fluid circuit. Indeed, in a peristaltic pump, the transported fluid does not come into contact with any moving parts, as it remains contained within the pump's deformable tube. This tube is regularly compressed by one or more rollers mounted on the pump's rotor, which sets the fluid in motion.
Data Source
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AI summary
The invention relates to a peristaltic pump (6) for household appliances comprising a pump body (60) defining a chamber (68) in which there is a deformable pipe (63) intended to contain a liquid to be moved, characterized in that the peristaltic pump (6) includes a sealing device (661, 662, 663) designed to contain the liquid inside the chamber (68) in the event of rupture of the deformable pipe (63).