Household Vacuum Sealer Isobaric Pumping Chamber
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Solution Overview
Problem
Household vacuum sealers often cause fluids in vacuum packaging bags to leak out during the vacuuming process due to pressure differences, leading to overflow and potential damage to internal components.
Innovation Solution
A household vacuum sealer design featuring a holder and cap with a control circuit, air pump, and seal rings that maintain equal pressure inside and outside the vacuum packaging bag, preventing fluid leakage by accommodating fluids in an isobaric space and using a flexible strap to manage fluid flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the household vacuum sealer pumps air inside the vacuum packaging bag to achieve better preservation effect, then the preservation effect is improved, but the fluids in the vacuum packaging bag will flow toward the opening and overflow the opening
Solution Approach 1:
The patent introduces an intermediary chamber between the vacuum packaging bag and the air pump. This chamber acts as a buffer zone that receives fluids flowing from the vacuum bag during pumping operations, preventing them from directly entering the pump and causing overflow. The intermediary chamber serves as a mediator that decouples the fluid flow from the pumping mechanism.
Solution Approach 2:
The patent designs a fluid accumulation chamber that is prepared in advance to receive and accommodate fluids before they can cause damage. This pre-positioned chamber acts as a cushioning zone that absorbs the harmful effect of fluid overflow during the vacuuming process, protecting the air pump and other internal components from direct exposure to fluids.
2Object-affected harmful factors
If a detection element is fixed inside the air pumping groove to control the vacuum sealer to stop pumping when fluids are detected, then fluid leakage is prevented, but the preservation effect is compromised
Solution Approach 1:
Instead of using a detection element that stops pumping when fluids are detected, the patent introduces an intermediary chamber that passively receives and accommodates fluids. This intermediary structure allows the vacuum sealer to continue pumping operations without interruption, as the chamber absorbs the fluid overflow before it can affect the pump or compromise the vacuum sealing process.
Solution Approach 2:
The patent converts the harmful effect of fluid overflow into a beneficial feature by designing a fluid accumulation chamber that intentionally captures and contains these fluids. Rather than trying to detect and stop the overflow, the system embraces the fluid flow and directs it into a designated chamber, transforming the potential damage into a controlled accommodation process that protects the pump while maintaining preservation effectiveness.
3Object-affected harmful factors
If the vacuum packaging bag is sealed tightly to prevent fluid leakage, then fluid leakage is prevented, but the pressure difference causes fluids to flush into the air pumping groove
Solution Approach 1:
The patent introduces an intermediary chamber between the vacuum packaging bag and the air pump that mediates the pressure difference effect. This chamber acts as a buffer zone that receives fluids pushed by the pressure difference during vacuuming, preventing them from directly entering the pump groove while allowing the pressure differential to continue functioning effectively for preservation.
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
Prevents fluid leakage and overflow, enhancing safety by maintaining equal pressure and accommodating fluids within the vacuum sealer, thus protecting internal components and improving the preservation effect.
Implementation Method 1
When a household vacuum sealer evacuates a vacuum packaging bag with fluids in the vacuum packaging bag, due to a pressure difference between the interior and exterior of the vacuum packaging bag, the fluids in the vacuum packaging bag will flow toward an opening of the vacuum packaging bag
Implementation Method 2
a closed space is defined between the vacuuming portion and the pumping portion so that a vacuuming pressure is equal to a pressure of the is equal to the pumping room, and a pressure of the vacuum packaging bag is equal to a pressure of an isobaric pumping space
Data Source
AI summary
A household vacuum sealer provided by the present invention contains: a holder and a cap. The holder includes a circuit board and an air pump, and the cap includes two hooks corresponding to two locking positions of the holder. The holder further includes a vacuuming portion, a bag feeding portion, and a cutter platform. The cap includes a pumping portion, a first seal ring, a flexible strap, and a pumping orifice. The holder further includes a second seal ring. After the cap is locked on the holder, the first seal ring contacts with the second seal ring, and a closed space is defined between the vacuuming portion and the pumping portion so that a vacuuming pressure is equal to a pressure of the is equal to the pumping room, and a pressure of the vacuum packaging bag is equal to a pressure of an isobaric pumping space.