WO2020252604A1

WO2020252604A1 - Fluid quantitative supply device and method

Info

Publication number: WO2020252604A1
Application number: PCT/CN2019/091440
Authority: WO
Inventors: 王东红
Original assignee: 王东红
Priority date: 2019-06-15
Filing date: 2019-06-15
Publication date: 2020-12-24

Abstract

A fluid quantitative supply method. By applying an external force to a substrate (1), the micro holes (11) located on the substrate (1) are stressed to deform, and the micro holes (11) use a surface where an axial central position thereof is located as a reference surface, and perform multi-dimensional gradual expansion and contraction at the axial two ends of the reference surface, so as to achieve the entrance and discharge of a fluid by means of the micro holes (11). The fluid is conveyed from one surface of the substrate (1) to the other surface, and the micro holes (11) are used as fluid conveying pipes, thereby achieving the quantitative conveyance of the fluid by means of precise control. A fluid quantitative supply device, comprising: a micro-deformation region (16) is controlled by means of a servo driving body (2) to deform, and the micro holes (11) are enabled to use the surface where the axial central position thereof is located as the reference surface, and perform multi-dimensional gradual expansion and contraction at the axial two ends of the reference surface. The device is artful in design, and by using a microstructure design idea, performs quantitative separation on fluid molecules by means of micro-nanoscale micro holes (11), thereby achieving quantitative conveyance.

Description

Fluid quantitative supply device and method

Technical field

The invention relates to a fluid quantitative supply device and method.

Background technique

The existing aerosol generating device includes an oil storage bin (liquid bin), an atomizer, a control board, and a battery, the battery is connected to the control board, the control board is connected to the atomizer, and the fog is controlled through the control board The working method of the carburetor, the atomizer atomizes the e-liquid (liquid) in the oil storage bin. The atomizer is equipped with an oil-conducting cotton. Both ends of the oil-conducting cotton are immersed in the e-liquid. Ability to absorb liquid (e-liquid), so the oil-conducting cotton absorbs the e-liquid in the oil storage bin, and the heating wire inside the atomizer atomizes the e-liquid absorbed by the oil-conducting cotton. However, the ability of the oil-conducting cotton to absorb e-liquid by its own adsorption function is limited, and the rate of the oil-conducting cotton’s absorption of the e-liquid is also not fixed and cannot be quantitatively transmitted; and the existing aerosol generating device also includes a smoker Incense, this kind of incense equipment can not supply incense oil quantitatively, of course, these will not be listed one by one. When the oil-conducting cotton absorbs too much e-liquid, the heating wire cannot atomize all the adsorbed e-liquid, causing the excess e-liquid to fall off the oil-conducting cotton, which is often referred to as oil leakage; therefore, in order to increase the amount of smoke , It is necessary to adopt a high-power working mode for the heating wire, the power of the heating wire is increased, and the smoke oil absorbed by the oil guiding cotton cannot be supplied in time. The insufficient amount of smoke oil in the oil guiding cotton may cause the heating wire to dry up, or even The scorching of the oil-conducting cotton produces an unpleasant smell, and even the precipitation of heavy metals at high temperatures is a great hazard to human health.

Summary of the invention

The purpose of the present invention is to overcome the defects of the prior art and provide a fluid quantitative supply device and method, which have the characteristics of quantitatively transferring liquid and precise control.

The present invention is realized as follows: a method for quantitative fluid supply, which includes the following steps:

Providing a substrate with at least one micropore;

When an external force is applied to the substrate, the micro-holes located on the substrate are deformed by the force. The micro-holes use its axial center position as the reference plane, and the axial ends of the reference plane are expanded and contracted in a multi-dimensional gradient to realize the fluid passing through the micro-holes. In and out.

In the same micropore, when the micropore at one end of the reference surface expands in the radial direction, the micropore at the other end of the reference surface shrinks in the radial direction. In the same micropore, at one end of the reference surface, the distance from the reference surface increases. Larger, the greater the radial expansion of the microhole; at the other end of the reference surface, the greater the distance from the reference surface, the greater the radial contraction of the microhole.

The micropores are micro-nano micropores, and the pore diameter of the micropores is between 5 nanometers and 200 micrometers.

The substrate is in the shape of a flat plate, and the substrate is horizontally arranged, the micropores penetrate through the upper and lower surfaces of the substrate, the external force is piezoelectric ceramics arranged on the substrate, and the piezoelectric ceramic makes the substrate It stretches and contracts along the direction of the plate surface, so that the aperture of the micropore is enlarged/reduced to realize the liquid transmission in the micropore.

A fluid quantitative supply device, which includes:

A substrate having a first surface and a second surface disposed oppositely, the substrate having a slightly changing area, the slightly changing area is provided with a plurality of micropores, the micropores penetrating the first surface and the second surface surface;

A servo driving body is arranged on the substrate, and the servo driving body controls the deformation of the micro-deformation area, so that the micro-holes are expanded and contracted in a multi-dimensional gradual manner at the axial ends of the reference surface based on the axial center position of the micro-hole.

The substrate is an insulating substrate made of non-metallic materials, the servo driver is piezoelectric ceramics, the piezoelectric ceramics are crimped on the substrate, and one side of the micro-change area is recessed from the surface of the substrate. The other side of the variable area protrudes from the surface of the substrate.

The slightly changing area includes a first area and a second area that are adjacently arranged, the first area is provided with a plurality of micro holes, and the second area is provided with a heating component.

The heating component is fixed on the first surface and/or the second surface, and the orthographic projection of the heating component on the substrate is dislocated from the microhole.

The heating component is erected on the first surface and/or the second surface, and the orthographic projection of the heating component on the substrate and the microhole are arranged in a misaligned manner.

The substrate is a metal substrate made of a metal material, the surface of the metal substrate is covered with a first insulating layer, and the first insulating layer covers the first surface, the second surface and the inner wall surface of the micropores. A heating component is arranged on the surface of the first insulating layer, and the servo driving body is piezoelectric ceramics, and the piezoelectric ceramics are crimped on the substrate.

One side of the slightly changed area is recessed from the surface of the substrate, the other side of the slightly changed area protrudes from the surface of the substrate, the surface of the heating component is covered with a second insulating layer, and the heating component is on the substrate The orthographic projection and the micro-hole are arranged in a misaligned manner.

The slight change area is provided with one or more of physical sensors, chemical sensors, and biological sensors.

A method for quantitative fluid supply, which includes the following steps;

A substrate is provided to define a three-dimensional rectangular coordinate system, the plane of the substrate is the XOY plane of the three-dimensional rectangular coordinate system, the thickness direction of the substrate is the Z-axis direction of the three-dimensional rectangular coordinate system, and at least one micro-hole penetrates the substrate along the Z-axis direction ；

When an external force is applied to the substrate, the substrate expands and contracts in the XOY plane, so that the projected area of the microholes at different ordinates of the Z axis on the XOY plane changes.

The side defining the substrate coincides with the XOY plane, the substrate is located above the XOY plane, and the microholes extend along the positive direction of the Z axis. When the substrate coincides with the XOY plane, the microholes do not deform; when the microholes face the positive Z axis When the direction is shifted, the microhole will deform. The larger the ordinate value of the microhole in the Z-axis direction, the larger the positive projection area on the XOY plane; when the microhole is displaced in the negative direction of the Z-axis, the microhole occurs Deformation, the smaller the ordinate value of the micro-hole in the Z-axis direction, the larger its positive projection area on the XOY plane, and the micro-hole moves periodically in the positive and/or negative direction of the Z-axis.

The external force is a servo drive body, the servo drive body is arranged on the substrate, and the servo drive body is used as a power source to make the substrate expand and contract on the XOY plane to change the area of the microhole. The specific action of the microhole is: Deformation, the micropores move periodically in the positive and/or reverse direction of the Z axis, and the micropores located at different ordinates shrink and expand to different degrees in a plane parallel to the XOY plane.

The substrate has a slight change area, the micropores are located in the slight change area, the two sides of the slight change area respectively have a first channel docking area and a second channel docking area along the Z axis direction, the first channel The docking area and the second channel docking area are connected through the microholes, the first channel docking area is located below the XOY plane, the second channel docking area is located above the XOY plane, and the servo driver is located in the first channel docking area and/ Or the second channel docking area.

When the first channel docking area is the liquid inlet channel, the liquid inlet channel of the servo drive body is connected to the first channel docking area, and the first channel docking area is provided with the micro-change area provided with physical sensors, chemical sensors, One or more types of biosensors.

The second channel docking area is connected to the lead-out channel of another servo driver. The second channel docking area is provided with one or more of physical sensors, chemical sensors, and biosensors in the micro-change area, and the first channel docking area is provided There is a liquid guide, and one end of the liquid guide is in contact with the surface of the substrate.

The two sides of the substrate are respectively provided with the servo drive bodies, and the two servo drive bodies are respectively connected to the control board.

The present invention provides a method for quantitatively supplying fluid. By applying external force to a substrate, the micropores located in the substrate are deformed by the force. The micropores take their axial center position as the reference plane, and perform multi-dimensional on both ends of the reference plane in the axial direction. Gradual expansion and contraction to achieve fluid entry and discharge through the micropores. The liquid is transported from one side of the substrate to the other side, and the micropores are used as the liquid infusion pipeline, and the quantitative transmission of the liquid is realized through precise control.

The present invention also provides a fluid quantitative supply device, which includes: controlling the deformation of the micro-deformation area through a servo drive body, so that the micro-holes take their axial center position as the reference surface, and perform multi-dimensional gradual expansion at the axial ends of the reference surface And shrink. The device is designed ingeniously, using microscopic design ideas to quantitatively separate liquid molecules through the deformation of micro-nano-level micropores, and then achieve quantitative transmission.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor.

FIG. 1 is a schematic diagram of the entire coordinate system of the first embodiment provided by the present invention;

2 is a schematic diagram of the balance state on the YOZ plane of the first embodiment provided by the present invention;

FIG. 3 is a schematic diagram of the YOZ moving upwards according to the first embodiment of the present invention;

4 is a schematic diagram of the YOZ moving face down according to the first embodiment of the present invention;

FIG. 5 is a cross-sectional view of the microhole according to the second embodiment of the present invention;

Fig. 6 is a cross-sectional view of a microhole according to a third embodiment of the present invention;

FIG. 7 is a cross-sectional view of the micro-holes and the heating element according to the third embodiment of the present invention;

Fig. 8 is a cross-sectional view of an insulating substrate and a heating component provided by the present invention;

Fig. 9 is another schematic diagram of the insulating substrate and the heating component provided by the present invention;

Figure 10 is a cross-sectional view of the metal substrate and heating components provided by the present invention;

Figure 11 is another schematic diagram of the metal substrate and the heating component provided by the present invention;

Figure 12 is a schematic diagram of a heating component provided by the present invention;

Figure 13 is another schematic diagram of the heating component provided by the present invention;

Figure 14 is a schematic diagram of the heating element provided by the present invention located inside the piezoelectric ceramic.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

As shown in Figure 1-14, the embodiment of the present invention provides a method and device for quantitatively supplying fluid. For details, please refer to the following description.

A method for quantitative fluid supply, which includes the following steps:

A substrate 1 is provided, which has at least one micropore 11; the micropores are micro-nano micropores, and the pore diameter of the micropores is between 5 nanometers and 200 micrometers, and the cross section of the micropores is a symmetrical pattern And/or asymmetrical pattern, the diameter of the holes at both ends of the micro-hole in the axial direction is equal or not equal; when an external force is applied to the substrate 1, the micro-hole 11 in the substrate 1 is deformed by the force, and the axial center of the micro-hole 11 is The reference plane is expanded and contracted in multiple dimensions at the axial ends of the reference plane to realize the fluid entry and discharge through the micropores 11. There are many ways of external force. For example, human hands control the substrate 1 to cause the substrate 1 to expand and contract laterally. The expansion and contraction causes convex and concave deformation of the micropores, the diameter of the micropores changes, and the axial length of the micropores also changes. Or various servo drive bodies 2 can make the substrate 1 expand and contract laterally, so as to cause deformation of the microhole 11. This kind of micro-nano-level micropores is designed to solve the problem of small molecules passing. For example, when the pore diameter is 10 nanometers, it is suitable for molecules of high fluidity liquid to pass. If the micropores do not deform, the high Molecules of fluid liquid cannot pass through the micropores, and the micropores contain or do not allow high-fluidity liquids (such as ultra-clean water) to pass. Only when the micropores are deformed can the high-fluidity liquid pass; When designing 200-micron micropores, it is suitable for low-fluidity liquids (such as viscous liquids) to pass. If the micropores do not deform, and at this time, the molecules of the low-fluidity liquid cannot pass through the micropores, and the micropores contain or It is said that the low-fluidity liquid is not allowed to pass, and only when the micropores are deformed can the low-fluidity liquid pass.

The substrate 1 is provided with a plurality of micro-holes 11. For the convenience of description, one of the micro-holes 11 is taken as an example. In the same micro-hole 11, when the micro-hole 11 at one end of the reference surface expands in the radial direction, the other end of the reference surface The pores 11 shrink in the radial direction. In the same microhole 11, at one end of the reference surface, the greater the distance from the reference surface, the greater the radial expansion of the microhole 11; at the other end of the reference surface, the greater the distance from the reference surface, the greater the distance from the reference surface. The shrinkage of the hole 11 in the radial direction is greater.

The substrate 1 is in the shape of a flat plate, and the substrate 1 is horizontally arranged, the microholes 11 penetrate the upper and lower surfaces of the substrate 1, the external force is piezoelectric ceramics arranged on the substrate 1, the Piezoelectric ceramics make the substrate move along the direction of the plate surface, which makes the aperture of the micropores larger/reduced, so as to realize the liquid transmission in the micropores. The plate shape can be interpreted as a roughly plate shape, that is, the part with micropores (micropores). The variable area) can slightly protrude downward, and the part without micropores is flat. Looking at this movement from a macro point of view, the slightly changed area moves upward or bulges upward, or moves downward or bulges downward, making this movement periodically.

The specific structure of this design is as follows, and one of the embodiments is described.

A fluid quantitative supply device, comprising: a substrate 1 having a first surface 12 and a second surface 13 opposed to each other, the substrate 1 having a slight change area 16, the slight change area 16 is opened with a plurality of The micro-hole 11 penetrates the first surface 12 and the second surface 13; a servo driver 2 is arranged on the substrate 1. The servo driver 2 controls the micro-deformation area 16 to deform, so that the micro-hole 11 Taking its axial center position as the reference plane, multi-dimensional gradual expansion and contraction are carried out at both ends of the reference plane in the axial direction. The specific explanation is as follows. Taking the horizontally placed substrate 1 as an example, the micro holes extend up and down, and the reference surface of the substrate is also That is, the substrate assumes a surface at the center of the vertical direction (thickness direction). This assumed surface is horizontal. The axial direction of the microhole 11 is also the vertical direction. The expansion and contraction correspond to the expansion and contraction, such as the expansion of the diameter of the micropore, Scaling, of course, here is just an example for convenience, so it cannot be limited to this design.

The substrate 1 (also referred to as a substrate) is generally introduced as follows: The materials constituting the substrate 1 include, but are not limited to, various metal materials, alloy materials, semiconductor materials, insulator materials, organic materials, inorganic materials, solid materials, and semi-solid materials. Materials, liquid materials, composite materials, artificial synthetic materials, natural materials, biological materials, ionic materials, thin-film materials, micron nano materials and other materials; the geometric shapes of the substrate 1 include but are not limited to various circles, cuboids, cubes , Equilateral triangles and other symmetrical shapes and/or other asymmetrical shapes; the micropores 11 in the slightly variable area 16 (micropore area) include but are not limited to various axially symmetric micropores, geometrically symmetric micropores, asymmetric micropores, Linear holes and/or curved holes of symmetrical shapes and/or other asymmetric shapes such as equal diameter micropores, variable diameter micropores, single-layer micropores, and multilayer composite micropores; the cross-sectional area of the micropores includes but not It is limited to the cross-sectional area of sub-square nanometer, square nanometer, square micrometer, square millimeter level; its porosity and through-hole ratio include, but are not limited to, between 1% and 99%.

The materials of the servo drive body 2 include, but are not limited to, various inverse piezoelectric materials and quartz crystal materials and other electric drive material deformation materials, various magnetostriction and other magnetic drive deformation materials, various photodeformation materials, various Thermally deformable materials, various cold deformable materials, various wave-driven deformable materials, various mechanical force-driven deformable materials, various phase-change-driven deformable materials, conforming deformable materials and other materials; their driving methods include but are not limited to various Motor drive mode, pneumatic drive mode, energy storage drive, thermal energy drive, chemical reaction drive, various manual drives, compound cross drive and other drive modes; its geometric shapes include but not limited to various circles, cuboids, cubes, equilateral triangles, etc. Symmetrical shapes and/or other asymmetrical shapes.

The substrate 1 is an insulating substrate made of a non-metallic material, and the insulating substrate is not conductive. For example, the servo driver 2 is a piezoelectric ceramic as an example. The piezoelectric ceramic is crimped on the substrate 1, and The electric ceramic is energized to give a vibration to the substrate 1, and the substrate 1 periodically expands and contracts in the vertical direction. The slightly changing area 16 includes a first area 14 and a second area 15 adjacently arranged. The first area 14 is provided with a plurality of micro holes 11, and the second area 15 is provided with a heating component 3. The heating component 3 may be a heating wire.

The heating component 3 is fixed on the first surface 12 and/or the second surface 13, and the orthographic projection of the heating component 3 on the substrate 1 and the microhole 11 are arranged in an offset manner. The staggered design of the micro-holes 11 and the heating element 3 is intended to indicate that the heating element 3 is fixed on the first surface 12 and/or the second surface 13, and cannot be disassembled or replaced, such as heating The component 3 is fixed to the first surface 12 and/or the second surface 13 by a high-temperature adhesive, or the heating component 3 is partially deposited on the first surface 12 and/or the second surface 13, such as by etching, laser, etc. The process lays a good position on the substrate 1, and then embeds and fixes the heating component 3 on the substrate 1. The heating component 3 and the periphery of the substrate 1 are covered with a first insulating layer 4.

Another embodiment also includes laying a layer of heating components on the surface of the substrate, such as a layer of heating resistors. This layer of heating resistors are opened at positions with micropores for the liquid flowing out of the micropores to pass through, or for the liquid to pass through. Of course, this layer of heating component needs to be electrically insulated from the substrate. One end of this layer of heating resistor is connected to the positive pole of the power supply, and the other end is connected to the negative pole of the power supply. After power on, this layer of heating resistor generates heat and will The liquid discharged from the micropores is processed, or the liquid entering the micropores is preheated.

The heating component 3 is erected on the first surface 12 and/or the second surface 13, and the orthographic projection of the heating component 3 on the substrate 1 and the microhole 11 are arranged in an offset manner. The design of this erection is intended to It indicates that the heating component 3 can be disassembled and replaced. The heating component 3 is directly supported on the first surface 12 and/or the second surface 13 through an external component. The heating component 3 is connected to the first surface 12 and/or the second surface 13 The surface 13 does not make direct contact. There is a gap between the heating element 3 and the first surface 12 and/or the second surface 13, and this gap is small. In other designs, the heating element 3 is in contact with the first surface 12 and/or Or the second surface 13 makes direct contact, which does not affect the heating of the liquid by the heating part 3.

The materials of the heating component 3 include, but are not limited to, various metal heating materials, alloy heating materials, semiconductor heating materials and other materials; its heating methods include, but are not limited to, various resistance heating, induction heating, infrared heating, physical heating, steam Heating and chemical heating methods; its geometric shapes include, but are not limited to, symmetrical shapes such as circles, cuboids, cubes, equilateral triangles, and/or other asymmetrical shapes. The heating component 3 can be a mesh design or a mesh的等。 If you look at the heating component 3 alone, it can be a resistance wire. When multiple resistance wires are laid together, they form a net shape, which can be simply understood as laying a net resistance wire on the first surface 12 and/or On the second surface 13, the projection of the resistance wire on the substrate 1 does not fall on the micro-hole 11, which means that the micro-hole 11 is not arranged directly under the resistance wire, or the micro-hole 11 is located on the side of the resistance wire.

The substrate 1 is a metal substrate made of a metal material. The metal substrate can conduct electricity at this time, and insulation treatment is required for the metal substrate. The surface of the metal substrate is covered with a first insulating layer 4, and the first insulating layer 4 covers Covering the first surface 12, the second surface 13 and the inner wall surface of the micropore 11, the surface of the first insulating layer 4 is provided with a heating component 3, the servo driver 2 is piezoelectric ceramics, and the piezoelectric ceramics In the substrate 1, the first insulating layer 4 can completely cover and seal the metal substrate to prevent the precipitation of the metal substrate during the heating process, can block the precipitation of the metal material, and prevent the liquid material from contacting the metal during the heating process. , To ensure the safety performance and health of the liquid. The surface of the heating component 3 is covered with the second insulating layer 5, the orthographic projection of the heating component 3 on the substrate 1 and the microhole 11 are arranged in a staggered manner, and the understanding of the staggered arrangement is the same as that described above.

The micro-change area is provided with one or more of physical sensors, chemical sensors, and biological sensors. Examples of physical sensors are temperature sensors, voltage sensors, current sensors, pressure sensors, vibration sensors, etc. Examples of chemical sensors: pH sensor, voltammetric scanning sensor, nicotine sensor, ion activity sensor, etc. Examples of biosensors: bioenzyme sensors, glucose sensors, filial piezo sensors, etc.

The slight change area 16 is provided with one or more of a temperature sensor, a PH sensor, a voltammetry scan sensor, and a nicotine sensor. The temperature sensor is used to detect the temperature of the liquid in the slight change area 16, and the PH sensor detects the temperature in the slight change area 16. For the PH value of the liquid, the voltammetric scanning sensor detects the voltage and current conditions in the slight change area 16, and the nicotine sensor detects whether there is nicotine in the slight change area 16.

In the present invention, a microporous 11 substrate constitutes a liquid isolation exchange unit, a servo driver 2 constitutes a power servo unit, a microporous 11 substrate and a servo driver 2 constitute a liquid quantitative supply body, and the liquid isolation exchange unit or The main body is isolated, with the substrate 1 as the main body. The two sides of the substrate 1 are the first liquid storage and analysis cavity and the second liquid storage and analysis cavity. The slightly variable area 16 of the substrate 1 constitutes a liquid isolation storage unit to be arranged in the first The liquid storage analysis cavity and the second liquid storage analysis cavity and/or the liquid isolation exchange unit, that is, the heating components 3 on both sides of the slight change area 16 constitute a heating unit. The configuration of the heating unit can increase the liquid when the liquid enters. When the liquid flows out, the liquid can also be atomized or heated, etc., depending on specific needs.

The substrate 1 is provided with a micro-changing area 16, the micro-holes 11 in the micro-changing area 16 are used as a liquid controlled discharge channel for a quantitative liquid supply, and the micro-changing area 16 is in the original structure state. See the example of the substrate 1 being in a horizontal state, namely When it is not deformed, it is the valve function of the microhole 11 (the liquid cannot pass through under the action of the surface tension); the servo drive body 2 is used as the servo drive component, and the substrate 1 is controlled by the pulse type telescopic mechanical force issued by the drive body to expand and contract laterally to change the substrate The area of the micropores 11 in the micro-change area 16 of 1 makes the micro-pores 11 in the micro-change area 16 produce concave---original state---convex periodic deformation. The pore 11 of the pore 11 takes its axial center position as the reference surface, and performs 360-degree multi-dimensional gradual expansion and contraction at both ends of the reference surface in the axial direction. The expansion and contraction are based on the axial direction of the reference surface toward the first liquid When the end of the storage analysis cavity (when the substrate is displaced downwards) starts to expand, the liquid is drawn in the first liquid storage analysis cavity, and when it starts to contract, the drawn liquid is pushed toward the second liquid storage analysis cavity in the axial direction of the reference plane One end of the body (when the substrate is displaced upwards) is released into the second liquid storage and analysis cavity in the form of pulsed fluid and/or aerosol. The expansion and contraction are controlled by the integrated control unit, and are controlled by the servo drive body 2. Control, the servo driver 2 then controls the micro-holes 11 in the micro-change area 16 of the substrate 1 to produce a controlled periodic movement of concave---original state---convex deformation, that is, the micro-holes 11 in the micro-change area 16 are on the basis of reference When the axial direction of the surface begins to shrink toward one end of the first liquid storage analysis cavity, the micropores 11 of the slightly changed area 16 start to expand toward the end of the second liquid storage analysis cavity with the axial direction of the reference plane. The frequency control signal and power amplitude of the controllable periodic motion controlled by the integrated control unit control the flow rate and dosage of the liquid transported from the first liquid storage analysis cavity to the second liquid storage analysis cavity, thereby realizing quantitative liquid injection.

When the function is extended, when the integrated control unit does not give the servo driver 2 control commands and drive power, the servo driver 2 does not act, that is, the micro-changing area 16 of the substrate 1 does not produce a controllable periodic movement of uneven deformation. At this time, the substrate 1 The micro-change area 16 and the micro-holes 11 in the micro-change area 16 are in the original structure state, that is, the micro-hole 11 is valved at this time (the liquid cannot pass under the action of the surface tension); when the integrated control unit outputs to the servo driver 2 When the power range is a certain range of constant power, and the duty cycle of the output frequency control signal is zero, that is, when the DC constant power, the servo driver 2 maintains the deformed state driven by the constant power, and then the slight change area 16 of the substrate 1 The microholes 11 in the slightly changed area 16 are in a deformed state driven by a constant power.

A method for quantitative fluid supply, which includes the following steps;

A substrate 1 is provided to define a three-dimensional rectangular coordinate system, the plane of the substrate 1 is the XOY plane of the three-dimensional rectangular coordinate system, the thickness direction of the substrate 1 is the Z-axis direction of the three-dimensional rectangular coordinate system, and the substrate 1 runs along the Z-axis direction At least one micro-hole 11; when an external force is applied to the substrate 1, the substrate 1 expands and contracts in the XOY plane, so that the projected area of the micro-hole 11 on the XOY plane at different ordinates of the Z axis changes. It is defined that one side of the substrate 1 coincides with the XOY plane, the substrate 1 is located above the XOY plane, and the microhole 11 extends along the positive direction of the Z axis. When the substrate 1 coincides with the XOY plane, the microhole 11 does not deform, and the liquid is also Cannot pass through the micropore 11 or be contained by the micropore 11, but blocked by the micropore 11; when the substrate 1 is displaced in the negative direction of the Z axis, the micropore 11 deforms, and the ordinate value of the micropore 11 in the Z axis direction The smaller the size, the larger the area of its orthographic projection on the XOY plane. The microholes 11 move periodically in the positive and/or negative direction of the Z axis, that is, the opening angle of the microholes 11 at the bottom of the substrate 1 is the largest. Entering the microhole 11 through this large angle, based on the restoring force of the substrate 1, the substrate 1 will move toward the positive direction of the Z axis. When the substrate 1 returns to the horizontal position, that is, coincides with the XOY plane, the substrate 1 contains the liquid , The liquid is taken out at this time; when the substrate 1 is displaced in the positive direction of the Z-axis, the microhole 11 is deformed. The larger the ordinate value of the microhole 11 in the Z-axis direction, the orthographic projection area on the XOY plane The larger the size, the greater the shrinkage of the micropore 11 located at the bottom. This shrinkage will squeeze the liquid that enters the micropore 11 upwards, make the liquid escape from the micropore 11, and realize the quantitative transmission of the liquid by the micropore 11. Vibration for a cycle, the liquid is transmitted through the micropore 11 once, and the size of the micropore 11 is fixed, and the amount of the micropore 11 extruded is a certain amount. The micropore 11 transmits the liquid once in a cycle, and the passage time can be accurately realized. The quantitative transmission of liquid completes a cycle of movement. Of course, the completion of this vibration requires the help of a servo drive body 2, such as piezoelectric ceramics, which is energized to make the substrate 1 periodically expand and contract laterally.

The external force is a servo drive body 2, the servo drive body 2 is arranged on the substrate 1, and the servo drive body 2 is used as a power source to make the substrate 1 expand and contract on the XOY plane to change the area of the microhole 11. The specific action is that the microhole 11 deforms, the microhole 11 moves periodically in the positive and/or reverse direction of the Z axis, and the microhole 11 at different ordinates shrinks and expands to different degrees in a plane parallel to the XOY plane. .

The substrate 1 has a slight change area 16, the micro holes 11 are located in the slight change area 16, the two sides of the slight change area 16 respectively have a first channel docking area and a second channel docking area along the Z-axis direction, The first channel docking area and the second channel docking area are connected through the microhole 11, the first channel docking area is located below the XOY plane, the second channel docking area is located above the XOY plane, and the servo driver 2 is located The first channel docking area and/or the second channel docking area. The docking area of the first channel can be provided with a liquid adsorption material, such as a liquid adsorption member, a liquid guide, etc. One end of the liquid guide is in contact with the micropore 11 of the micro-change area 16, and the liquid guide can adsorb the liquid to the micro-change area 16.

When the first channel docking area is the liquid inlet channel, the liquid inlet channel of the servo drive body 2 is connected to the first channel docking area, and the first channel docking area is provided with a temperature sensor, a PH sensor, a voltammetric scanning sensor, and nicotine One or more types of sensors.

The second channel docking area is connected to the lead-out channel of another servo driver 2, and the second channel docking area is provided with one or more of a temperature sensor, a PH sensor, a voltammetry scan sensor, and a nicotine sensor.

Both sides of the substrate 1 are provided with the servo drive bodies 2 respectively, and the two servo drive bodies 2 are respectively connected to a control board, and different excitation sources are applied to the servo drive body 2 through the control board to realize the substrate 1 The different vibrations of the servo driver 2 on both sides, for example, the servo driver 2 on the upper side of the substrate 1 vibrates separately, the servo driver 2 on the lower side of the substrate 1 vibrates separately, the servo driver 2 on the upper side of the substrate 1 and the substrate 1 The servo driver 2 on the lower side of the substrate 1 vibrates together, or the frequency of the servo driver 2 on the upper side of the substrate 1 is greater than the frequency of the servo driver 2 on the lower side of the substrate 1, so as to realize the liquid in different directions in the microhole 11 Liquid delivery.

The flow control analysis framework method of the present invention is to set up the drive body on the substrate 1 including but not limited to single-sided and double-sided, and set up the drive body on the single-sided and double-sided, including but not limited to the substrate 1. The single end, symmetric end, and asymmetric end of 1 are provided with a driving body.

The liquid injection unit composed of the liquid injection channel (liquid inlet channel): its materials include, but are not limited to, various metal materials, alloy materials, semiconductor materials, insulator materials, organic materials, inorganic materials, solid materials, semi-solid materials, Liquid materials, composite materials, synthetic materials, natural materials, biological materials, ionic materials, thin-film materials, micro-nano materials and other materials; its geometric shapes include but are not limited to various circles, cuboids, cubes, equilateral triangles, etc. Symmetrical shapes and/or other asymmetrical shapes.

The said liquid discharge channel (export channel) constitutes a reactive substance release unit: its materials include but are not limited to various metal materials, alloy materials, semiconductor materials, insulator materials, organic materials, inorganic materials, solid materials, semi-solid materials, Liquid materials, composite materials, synthetic materials, natural materials, biological materials, ionic materials, thin-film materials, micro-nano materials and other materials; its geometric shapes include but are not limited to various circles, cuboids, cubes, equilateral triangles, etc. Symmetrical shapes and/or other asymmetrical shapes.

The liquid injection channel provided on the first liquid storage analysis cavity constitutes a liquid injection unit, and the liquid discharge channel provided on the second liquid storage analysis cavity constitutes a reaction substance release unit, which is arranged in the first liquid storage analysis cavity The valves on the body and the second liquid storage and analysis cavity and/or the valves on the liquid injection unit and the reaction substance release unit constitute an internal pressure balance servo unit.

The above descriptions are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the present invention. Within the scope of protection.

Claims

A method for quantitative fluid supply, characterized in that it comprises the following steps:

Providing a substrate with at least one micropore;

When an external force is applied to the substrate, the micro-holes located on the substrate are deformed by the force. The micro-holes use its axial center position as the reference plane, and the axial ends of the reference plane are expanded and contracted in a multi-dimensional gradient to realize the fluid passing through the micro-holes. In and out.
A method for quantitative fluid supply according to claim 1, characterized in that: in the same micropore, when the micropore at one end of the reference surface expands in the radial direction, the micropore at the other end of the reference surface contracts in the radial direction. , In the same micro-hole, at one end of the reference surface, the greater the distance from the reference surface, the greater the radial expansion of the micro-hole; at the other end of the reference surface, the greater the distance from the reference surface, the greater the micro-hole The greater the contraction in the radial direction is performed.
A method of quantitatively supplying fluid according to claim 1, wherein the micropores are micro-nano micropores, and the pore diameter of the micropores is between 5 nanometers and 200 micrometers. The cross-section of the hole is a symmetrical pattern and/or an asymmetrical pattern, and the diameters of the holes at both ends of the axial direction of the microhole are equal or unequal.
The method for quantitatively supplying fluid according to claim 1, wherein the substrate is in the shape of a flat plate, and the substrate is arranged horizontally, the micro-holes penetrate the upper and lower surfaces of the substrate, and the The external force is the piezoelectric ceramic arranged on the substrate, and the piezoelectric ceramic causes the substrate to expand and contract along the direction of the plate surface, so that the aperture of the micropore is enlarged/reduced, so as to realize the liquid transmission in the micropore.
A fluid quantitative supply device is characterized by comprising:

A substrate having a first surface and a second surface disposed oppositely, the substrate having a slightly changing area, the slightly changing area is provided with a plurality of micropores, the micropores penetrating the first surface and the second surface surface;

A servo driving body is arranged on the substrate, and the servo driving body controls the deformation of the micro-deformation area, so that the micro-holes are expanded and contracted in a multi-dimensional gradual manner at the axial ends of the reference surface based on the axial center position of the micro-hole.
The fluid quantitative supply device according to claim 5, wherein the substrate is an insulating substrate made of a non-metallic material, the servo drive body is a piezoelectric ceramic, and the piezoelectric ceramic is crimped on the substrate, One side of the slightly changed region is recessed from the surface of the substrate, and the other side of the slightly changed region protrudes from the surface of the substrate.
The fluid quantitative supply device according to claim 6, wherein the micro-change area includes a first area and a second area that are adjacently arranged, the first area is provided with a plurality of micro holes, and the second area is provided with a heating element .
The fluid quantitative supply device according to claim 7, wherein the heating component is fixed on the first surface and/or the second surface, and the orthographic projection of the heating component on the substrate and the microhole are arranged in a misaligned manner. .
The fluid quantitative supply device according to claim 7, wherein the heating component is installed on the first surface and/or the second surface, and the orthographic projection of the heating component on the substrate is misaligned with the microhole Set up.
The fluid quantitative supply device according to claim 5, wherein the substrate is a metal substrate made of a metal material, the surface of the metal substrate is covered with a first insulating layer, and the first insulating layer covers the first insulating layer. A surface, a second surface and an inner wall surface of the micropores, the surface of the first insulating layer is provided with a heating component, the servo drive body is piezoelectric ceramics, and the piezoelectric ceramics are crimped on the substrate.
The fluid quantitative supply device according to claim 10, wherein one side of the slightly changed area is recessed from the surface of the substrate, and the other surface of the slightly changed area is protruded from the surface of the substrate, and the heating member The surface of the heating element is covered with a second insulating layer, and the orthographic projection of the heating component on the substrate and the microhole are arranged in a staggered manner.
The fluid quantitative supply device according to claim 5, wherein the slight change area is provided with one or more of a physical sensor, a chemical sensor, and a biological sensor.
A method for quantitative fluid supply, characterized in that it comprises the following steps:

A substrate is provided to define a three-dimensional rectangular coordinate system, the plane of the substrate is the XOY plane of the three-dimensional rectangular coordinate system, the thickness direction of the substrate is the Z-axis direction of the three-dimensional rectangular coordinate system, and at least one micro-hole penetrates the substrate along the Z-axis direction ；

When an external force is applied to the substrate, the substrate expands and contracts in the XOY plane, so that the projected area of the microholes at different ordinates of the Z axis on the XOY plane changes.
The method of quantitatively supplying fluid according to claim 13, characterized in that: the side defining the substrate coincides with the XOY plane, the substrate is located on the XOY plane, and the microholes extend along the positive direction of the Z axis. When the substrate and the XOY plane coincide When the micro-hole is not deformed; when the micro-hole is displaced in the positive direction of the Z-axis, the micro-hole is deformed. The larger the ordinate value of the micro-hole in the Z-axis direction, the larger the orthographic projection area on the XOY plane. ; When the microhole is displaced in the negative direction of the Z-axis, the microhole is deformed. The smaller the ordinate value of the microhole in the Z-axis direction, the larger the area of the positive projection on the XOY plane, and the microhole toward the Z-axis Do periodic movement in positive and/or negative directions.
The method of quantitatively supplying fluid according to claim 14, wherein the external force is a servo drive body, the servo drive body is arranged on the substrate, and the servo drive body is used as a power source to make the substrate perform on the XOY plane. The expansion and contraction changes the area of the micro-hole. The specific action of the micro-hole is that the micro-hole is deformed, and the micro-hole moves in the positive and/or negative direction of the Z axis. The micro-holes at different ordinates are in a plane parallel to the XOY plane. Perform different degrees of contraction and expansion.
The method for quantitatively supplying fluid according to claim 13, wherein the substrate has a slight change area, the micropores are located in the slight change area, and both sides of the slight change area have a Z-axis The first channel docking area and the second channel docking area are connected with each other through the micropores, the first channel docking area is located below the XOY plane, and the second channel docking area Located above the XOY plane, the servo drive body is located in the first channel docking area and/or the second channel docking area.
The method for quantitatively supplying fluid according to claim 16, wherein when the first channel docking area is a liquid inlet channel, the liquid inlet channel of the servo drive body is connected to the first channel docking area, and the first channel docking area is One channel docking area is provided with one or more of physical sensors, chemical sensors, and biosensors in the micro-change area.
The method for quantitatively supplying fluid according to claim 17, wherein the second channel docking area is connected to the outlet channel of another servo driver, and the second channel docking area is provided with the micro-change area provided with a physical sensor One or more of chemical sensors and biosensors, the first channel docking area is provided with a liquid guide, and one end of the liquid guide is in contact with the surface of the substrate.
The method of quantitatively supplying fluid according to claim 13, wherein the servo drive bodies are respectively provided on both sides of the substrate, and the two servo drive bodies are respectively connected to the control board.
The method for quantitatively supplying fluid according to claim 13, wherein the micropores are micro-nano-level micropores, and the pore diameter of the micropores is between 5 nanometers and 200 micrometers. The cross-section of the hole is a symmetrical pattern and/or an asymmetrical pattern, and the diameters of the holes at both ends of the axial direction of the microhole are equal or unequal.