CN-224221378-U - Microfluidic fluid converter

CN224221378UCN 224221378 UCN224221378 UCN 224221378UCN-224221378-U

Abstract

The utility model relates to the technical field of fluid conversion and discloses a microfluidic fluid converter, which comprises at least one group of conversion pipeline structures and a shell for coating the conversion pipeline structures, wherein the conversion pipeline structures comprise a liquid inlet channel, a liquid outlet channel and a communication pipeline for communicating the liquid inlet channel and the liquid outlet channel, the liquid inlet channel is arranged on the side surface of the shell, the pore diameter of the liquid inlet channel is gradually reduced from outside to inside, the liquid outlet channel is arranged on the side surface of the shell different from the liquid inlet channel, and the pore diameter of the liquid outlet channel is gradually increased from inside to outside. The method not only solves the technical bottlenecks of single interface, single function and difficult expansion of the traditional microfluidic system, but also greatly improves the tightness, modularization, integration and maintainability, and meets the application requirements of the modern microfluidic technology on high throughput, multiple functions, low consumption and quick switching.

Inventors

ZHAO YAOLIN
CHEN YANHONG

Assignees

广州纳微流控科技有限公司

Dates

Publication Date: 20260512
Application Date: 20250723

Claims (10)

1. A microfluidic fluid transducer, wherein the transducer comprises at least one set of switching tube structures and a housing encasing the switching tube structures; The switching pipeline structure comprises a liquid inlet channel, a liquid outlet channel and a communication pipeline for communicating the liquid inlet channel with the liquid outlet channel; the liquid inlet channel is arranged on the side surface of the shell, and the aperture of the liquid inlet channel is gradually reduced from outside to inside; the liquid outlet channel is arranged on the side surface of the shell different from the liquid inlet channel, and the aperture of the liquid outlet channel is gradually increased from inside to outside.
2. The fluid converter of claim 1, wherein the outlet channel further comprises an outer body disposed outside the housing, the outer body shape including, but not limited to, a cylinder; the liquid outlet channel in the cylinder is a taper hole, and the taper hole is 90.5-95 degrees.
3. The fluid converter according to claim 1 or 2, wherein the liquid inlet channel comprises a liquid inlet channel A and a liquid inlet channel B, the liquid inlet channel A is embedded in the shell, the liquid outlet channel is a conical hole and is a conical hole with 90.5-95 degrees, the liquid inlet channel B comprises an outer main body, the outer main body comprises a cylinder, the liquid inlet channel in the cylinder is a conical hole with 90.5-95 degrees, and the liquid inlet channel and the liquid outlet channel can be mutually converted in application.
4. A fluid transducer according to claim 3, wherein the communication line is a right-angle line, the liquid inlet channel and the liquid outlet channel are arranged vertically to each other, the liquid inlet and the liquid outlet are respectively arranged on the side surfaces of the housing which are vertical to each other, and the liquid inlet channel and the liquid outlet channel are mutually convertible when in use.
5. A fluid transducer according to claim 3, wherein the cylinder is provided as a 90 degree cylinder, the angle being the angle of inclination of the plane of the cylinder to the side of the cylinder.
6. The fluid converter according to claim 1, wherein the external connection of the feed channel includes, but is not limited to, a male or threaded connection; The male connector is arranged corresponding to the inner hole of the liquid inlet channel and comprises a straight-mouth injector, a luer head injector and a luer head; The threaded connection is that threads are arranged in an inner hole of the liquid inlet channel and are connected with an external connector through threads, and the external connector comprises a threaded luer connector.
7. The fluid converter according to claim 1, wherein the converter is provided with a double-lug converting pipeline structure, the converting pipeline structures are arranged on the same plane of the cavity side by side, the cavity is a rectangular cavity, and the liquid inlet channel and the liquid outlet channel are arranged on two planes which are adjacent and perpendicular to each other.
8. The fluid transducer of claim 1, wherein the transducer further comprises, but is not limited to, three transducer tube structures disposed side-by-side.
9. A fluid transducer according to claim 3, wherein the transducer further comprises a filter structure provided at the inlet/outlet channel; Wherein, any one channel or all channels of the liquid inlet/outlet channels are provided with one or a combination of a filtering membrane, a filtering sheet or a filter in the inner hole.
10. The fluid converter of claim 5, further comprising a temperature control module disposed within the converter housing for controlling the temperature of the fluid of the converter.

Description

Microfluidic fluid converter Technical Field The utility model relates to the technical field of fluid conversion, in particular to a microfluidic fluid converter. Background With the wide application of microfluidic technology in the fields of life science, chemical synthesis, material preparation and the like, the requirements of microfluidic systems on interface stability, multifunctional integration and modularization expansibility are increasingly improved. At present, the microfluidic platform mainly comprises an injection pump and a microfluidic chip, and the following disadvantages exist in a fluid conveying and connecting mode: 1. The inlet connection mode is single and fragile, and current system adopts direct butt joint of straight mouth syringe needle or Luer (Luer) lock to connect more, lacks general compatibility, and easy production leakage or stress concentration in the connection process leads to interface damage and operation unstable. 2. The outlet connection mode lacks diversity, and most microfluidic chips are only provided with the same type of interface at the outlet, do not support various connection modes such as threads or double heads (threads+luer/threads+straight ports), and are difficult to meet flexible connection with a downstream mixer, a collection pipeline or an online analysis device. 3. The functional module is difficult to expand, and the conventional microfluidic device generally has only a single fluid conveying function, cannot realize downstream processing requirements such as fluid filtration, temperature control, high-pressure homogenization or micro-jet, and cannot be rapidly integrated with an external mixing reactor, a temperature control module or an online filtering component. Based on the above-mentioned shortcomings, there is an urgent need for a microfluidic fluid converter that is compatible with multiple connection modes, integrates multiple functional modules, and can rapidly switch and implement multiphase/multistage fluid processing, so as to meet the application requirements of modern microfluidic systems for high throughput, multiple functions, and integration. Disclosure of utility model The utility model provides a microfluidic fluid converter, which not only solves the technical bottlenecks of single interface, single function and difficult expansion of the traditional microfluidic system, but also greatly improves the tightness, modularization, integration and maintainability, and meets the application requirements of the modern microfluidic technology on high-flux, multifunctional, low-consumption and quick switching. The utility model solves the technical problems by the following technical proposal: A microfluidic fluid transducer comprising at least one set of a switching tube structure and a housing encasing the switching tube structure; The switching pipeline structure comprises a liquid inlet channel, a liquid outlet channel and a communication pipeline for communicating the liquid inlet channel with the liquid outlet channel; the liquid inlet channel is arranged on the side surface of the shell, and the aperture of the liquid inlet channel is gradually reduced from outside to inside; the liquid outlet channel is arranged on the side surface of the shell different from the liquid inlet channel, and the aperture of the liquid outlet channel is gradually increased from inside to outside. In a specific embodiment, the liquid outlet channel further comprises an outer body, wherein the outer body is arranged outside the shell, and the shape of the outer body comprises but is not limited to a cylinder; the liquid outlet channel in the cylinder is a taper hole, and the taper hole is 90.5-95 degrees. In a specific embodiment, the liquid inlet channel comprises a liquid inlet channel A and a liquid inlet channel B, wherein the liquid inlet channel A is embedded in the shell, the liquid inlet channel is a conical hole and is a conical hole with the angle of 90.5-95 degrees, the liquid inlet channel B comprises an outer main body, the shape of the outer main body comprises but is not limited to a cylinder, and the liquid inlet channel in the cylinder is a conical hole and is a conical hole with the angle of 90.5-95 degrees. In a specific embodiment, the communication pipeline is a right-angle pipeline, the liquid inlet channel and the liquid outlet channel are mutually perpendicular, the liquid inlet and the liquid outlet are respectively arranged on the side surfaces of the mutually perpendicular shells, and the liquid inlet channel and the liquid outlet channel can be exchanged. In a specific embodiment, the cylinder is set to be a cylinder with 90 degrees, and the angle is the inclination angle between the plane of the cylinder and the side surface of the cylinder. In a specific embodiment, the external connection mode of the liquid inlet channel comprises but is not limited to plug-in connection or threaded connection; The male connector is arra