Flow path device and method for manufacturing the same

By setting electrodes on both sides of the substrate of the flow path device and using a flexible printed substrate manufacturing method, the problem of limited electric field range is solved, achieving efficient separation of particles at higher flow rates and reducing costs.

CN122122097APending Publication Date: 2026-05-29NOK CORP +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NOK CORP
Filing Date
2024-10-28
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

In existing technologies, the limited distance between electrode pairs restricts the range of electric field action, making it impossible to effectively separate particles at higher flow rates or reducing throughput at lower flow rates.

Method used

A flow path device is designed, which employs electrodes on both sides of a substrate and forms an electric field along the flow path over a long range using a flexible printed circuit board manufacturing method. The device includes electrodes and a cover component on both sides of the flow path, and uses laser ablation to form the electrodes and the flow path.

Benefits of technology

It achieves effective separation of particles at higher flow rates and increases throughput, while reducing costs by simplifying manufacturing processes. It is suitable for flow path devices on flexible printed circuit boards.

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Abstract

The present invention relates to a flow path device and a manufacturing method thereof. A flow path device (1) includes a substrate (4) having a first face (4a) and a second face (4b) facing away from each other, and a pair of a first electrode (10) and a second electrode (11). The substrate (4) has a flow path (7) extending along the first face (4a) and the second face (4b), and the pair of the first electrode (10) and the second electrode (11) forms an electric field intersecting the flow path (7) in a direction in which the first face (4a) and the second face (4b) face away from each other.
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