Ink Cartridge Refilling Device with Sealed Cover
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Solution Overview
Problem
Ink cartridges with sponges tend to become supersaturated after refilling, leading to ink dropping phenomena when removed, causing environmental pollution and user contamination.
Innovation Solution
A negative-pressure ink cartridge refilling device with a cover component featuring first and second sealing sections, an aspirator, and an ink injection channel, allowing for controlled air and ink flow to prevent ink from flowing back during refilling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If traditional refilling method is used with sponge to control negative pressure, then ink refilling can be achieved, but the sponge becomes supersaturated causing ink dropping phenomenon
Solution Approach 1:
The patent applies preliminary action by sealing the air inlet hole before the ink refilling process begins. This pre-sealing action prevents air from entering the ink container during refilling, ensuring that negative pressure is maintained throughout the process and preventing the sponge from becoming supersaturated with ink, thereby eliminating the ink dropping phenomenon.
Solution Approach 2:
The patent extracts the harmful factor by removing the air inlet hole sealing function from the traditional open design and implementing it as a separate, controllable sealing mechanism. The sealing component is designed to specifically seal the air inlet hole, isolating the ink refilling process from atmospheric pressure changes and preventing ink overflow.
2Ease of operation
If air inlet channel is opened during refilling, then air can be replenished to ink container, but negative pressure cannot be maintained preventing ink flow control
Solution Approach 1:
The patent applies preliminary anti-action by pre-sealing the air inlet hole before refilling begins and maintaining this seal throughout the ink injection process. This counteracts the natural tendency for air to enter the container, ensuring negative pressure is preserved and ink flow is precisely controlled without premature air replenishment that would disrupt the refilling process.
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 ink dropping by maintaining negative pressure in the ink cartridge during refilling, ensuring the ink cartridge remains sealed until air is replenished, thus preventing redundant ink from flowing back into the container.
Implementation Method 1
an aspirator for sucking air in the ink cartridge to be refilled
Implementation Method 2
the cover component is provided with a first sealing section for sealing the ink cartridge to be refilled and a second sealing section for sealing the air inlet channel
Data Source
AI summary
The invention relates to an ink cartridge refilling device and an ink cartridge refilling system. The ink cartridge refilling device comprises an ink container, an ink injection channel, an air inlet channel, an aspirator and a cover component, wherein the cover component is provided with a first sealing section for sealing an ink cartridge to be refilled and a second sealing section for sealing the air inlet channel. During the ink refilling, air in a sealed ink cartridge can be sucked to enable ink in the ink container to flow into the sealed ink cartridge, so that negative pressure is formed in the ink container and the ink is conveyed from the ink container to the ink cartridge under the negative pressure, thus the refilling of the ink into the ink cartridge and the replenishing of air into the ink container may not be carried out at the same time.