Liquid ejecting head and liquid ejecting apparatus
By designing an optimized width connecting channel and a shared liquid chamber structure in the liquid jet head, the problem of high channel resistance is solved, the jetting efficiency is improved, and it is suitable for liquid jetting in printing equipment.
CN116552122BActive Publication Date: 2026-07-21SEIKO EPSON CORP
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SEIKO EPSON CORP
- Filing Date
- 2023-02-01
- Publication Date
- 2026-07-21
AI Technical Summary
Technical Problem
The existing liquid jet head has high flow resistance, resulting in poor jetting efficiency.
Method used
The design employs a connecting flow channel that connects the nozzle formed on the nozzle plate to multiple pressure chambers. The width of the connecting flow channel is set to be greater than the width of the pressure chamber. The flow channel resistance is reduced through structural optimization of the shared liquid chamber and the independent flow channel of the nozzle.
Benefits of technology
It effectively reduces flow channel resistance and improves liquid jetting efficiency, making it suitable for jetting various liquids such as inks and coatings.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN116552122B_ABST
Abstract
The present disclosure provides a liquid ejecting head and a liquid ejecting apparatus that reduce the flow channel resistance from a pressure chamber to a nozzle. The liquid ejecting head includes a nozzle plate on which a first nozzle that ejects liquid is formed; first and second pressure chambers that are arranged side by side in a first direction; third and fourth pressure chambers that are arranged side by side in the first direction; a first communication flow channel that is a flow channel extending along the nozzle plate, that is connected to the first nozzle, and that communicates with the first to fourth pressure chambers; a first common liquid chamber that communicates with the first and second pressure chambers; and a second common liquid chamber that communicates with the third and fourth pressure chambers. The first and second pressure chambers are offset from the third and fourth pressure chambers in a second direction that is orthogonal to the first direction. When a first width of the first communication flow channel in the first direction at a position overlapping the first nozzle when viewed in plan view as viewed toward the nozzle plate is set as a first width, and a width of the first pressure chamber in the first direction is set as a pressure chamber width, the first width is equal to or greater than the pressure chamber width.
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