RO125556A2 - Micro pump and process for making the same - Google Patents

Micro pump and process for making the same Download PDF

Info

Publication number
RO125556A2
RO125556A2 ROA200800656A RO200800656A RO125556A2 RO 125556 A2 RO125556 A2 RO 125556A2 RO A200800656 A ROA200800656 A RO A200800656A RO 200800656 A RO200800656 A RO 200800656A RO 125556 A2 RO125556 A2 RO 125556A2
Authority
RO
Romania
Prior art keywords
micropump according
thermopneumatic actuator
resistive layer
thermopneumatic
channels
Prior art date
Application number
ROA200800656A
Other languages
Romanian (ro)
Inventor
Marin Gheorghe
Original Assignee
Marin Gheorghe
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Marin Gheorghe filed Critical Marin Gheorghe
Priority to ROA200800656A priority Critical patent/RO125556A2/en
Publication of RO125556A2 publication Critical patent/RO125556A2/en

Links

Landscapes

  • Micromachines (AREA)

Abstract

The invention relates to a micro pump applicable in chemical synthesis, for small amounts of substances, biotechnological processes, laboratory tests, press printing etc. According to the invention, the micro pump consists of two miniaturized electromagnetic valves (1) fixed on a printed circuit board (2), which act in tandem with a thermal-pneumatic actuator consisting of a capillary glass tube (3) closed at one end by using oxyhydrogen or oxyacetylene flame and having an external resistive platinum coating (4), of a polydimethylsiloxane foil (5) in which there are cut two perpendicular channels (6), the thermal-pneumatic actuator being placed in one of said channels, and of some ferromagnetic pads (7) which are perpendicularly arranged in one of the channels (6).

Description

Cerere de brevet de invențiePatent application

MICROPOMPA SI PROCEDEU DE REALIZARE A ACESTEIAMICROPUMP AND PROCEDURE FOR MAKING IT

Rezumat: Invenția se refera la o micropompa si la un prpocedeu de realizare a acesteia. Micropompa, conform invenției este constituita din următoarele parti componente: doua valve electromagnetice identice (1), fixate intr-un circuit imprimat (2), dintr-un actionator termopneumatic format dintr-un tub închis la un capat (3) care prezintă un strat de metal depus pe suprafața exterioara a acestuia (4), dintr-o folie de polidimetilsiloxan (5) in care sunt practicate doua canale perpendiculare unul pe celalalt (6). La unul din canale se conectează actionatorul termopneumatic. Păduri feromagnetice (7) sunt atașate perpendicular pe unul din canalele (cel poziționat deaupra electromagnetilor) practicate in folia de PDMS.Abstract: The invention relates to a micropump and to a process for its realization. The micropump according to the invention consists of the following components: two identical solenoid valves (1), fixed in a printed circuit (2), of a thermopneumatic actuator formed by a closed tube at one end (3) having a layer of metal deposited on its outer surface (4), of a polydimethylsiloxane foil (5) in which two channels perpendicular to each other are applied (6). The thermopneumatic actuator is connected to one of the channels. Ferromagnetic forests (7) are attached perpendicular to one of the channels (the one positioned above the electromagnets) practiced in the PDMS foil.

Descrierea invențieiDescription of the invention

Invenția se refera la o micropompa constituita din doua valve electromagnetice care ationeaza in tandem cu un actionator termopneumatic si la un procedeu de realizarea a acesteia.The invention relates to a micropump consisting of two solenoid valves that operate in tandem with a thermopneumatic actuator and a method of making it.

Transportul fluidelor in format microfluidic are o arie imensa de aplicatii, cum ar fi sinteza chimica pentru mici cantitati de substanțe, procese biotehnologice, analize de laborator, imprimerie tipografica etc. Pentru a se realiza acest transport de lichide se utilizează pompe miniaturale sau micropompe care, in majoritatea cazurilor conțin piese (cum ar fi pistoane, roti dintate etc.) prin mișcarea carora se realizează pomparea lichidului. Aceste tipuri de pompe avand piese in mișcare sunt predispuse la uzura de frecare, cu consecința scăderii fiabilității echipamentului care conține o astfel de micropompa. Ele au deasemenea o construcție complicata.The transport of fluids in microfluidic format has a huge range of applications, such as chemical synthesis for small quantities of substances, biotechnological processes, laboratory analysis, printing, etc. Miniature pumps or micropumps are used to carry out this transport of liquids, which in most cases contain parts (such as pistons, gears, etc.) by the movement of which the liquid is pumped. These types of pumps with moving parts are prone to frictional wear, with the consequence of decreasing the reliability of the equipment containing such a micropump. They also have a complicated construction.

In patentul SUA nr. 7 299 815/2007 este descrisa o micropompa care utilizează fenomenul piezoelectric pentru transportul lichidelor. Pompele piezoelectrice prezintă dezavantajul ca necesita tensini de lucru de ordinul zecilor sau sutelor de volti.In the US patent no. 7 299 815/2007 describes a micropump that uses the piezoelectric phenomenon to transport liquids. Piezoelectric pumps have the disadvantage that they require operating voltages of tens or hundreds of volts.

I 1—_ u. I - — -------- - ------ - - .. ....... * .· - - ...-·’ . ’ * * prw xz kvxuvji.w mtvxkviw wx/ww UVWU €4 l'VM.llZAAlIl U11V1 1111VI VjJUl lip V, VU1 necestia tensiuni de lucru mici, care are un număr redus de componente in mișcare si care are o construcție simpla.I 1 — _ u. I - - -------- - ------ - - .. ....... *. · - - ...- · ’. ’* * Prw xz kvxuvji.w mtvxkviw wx / ww UVWU € 4 l'VM.llZAAlIl U11V1 1111VI VjJUl lip V, VU1 the need for small working voltages, which has a small number of moving components and has a simple construction.

Micropompa, conform invenției, înlătură dezavantajele pe care alte tipuri de micropompe le au, prin aceea ca utilizează un actionator termopneumatic in tandem cu doua valve elecromagnetice miniaturale.The micropump, according to the invention, removes the disadvantages that other types of micropumps have, in that it uses a thermopneumatic actuator in tandem with two miniature solenoid valves.

Micropompa, conform invenției, prezintă următoarele avantaje:The micropump, according to the invention, has the following advantages:

- necesita o tensiune mica de lucru (mai mica de 10 V);- requires a low working voltage (less than 10 V);

- are un consum energetic redus;- has a low energy consumption;

- are o construcție simpla; .- has a simple construction; .

- elementul actuator termopneumatic nu are elemente in mișcare, ceea ce permite efectuarea unui număr mare de acționari fara uzura.- the thermopneumatic actuator element has no moving elements, which allows a large number of actuators to be carried out without wear.

Se da in continuare un exemplu de realizare a invenției, conform Figurii 1.An embodiment of the invention is given below, according to Figure 1.

Micropompa, conform invenției, este constituita din doua valve electromagnetice miniaturale (1) fixate intr-o placa de-eîfeuiGmprimaE(2)caF^acfieneaza4ntandem-eu-tmactionator termopneumatic format dintr-un tub capilar de sticla (3) închis la un capat in flacara oxihidrica, oxiacetilenica etc., care are depus pe exterior un strat rezistiv din platina (4), dintr-o folie de polidimetilsiloxan (5) in care sunt practicate doua canaleThe micropump, according to the invention, consists of two miniature solenoid valves (1) fixed in a plate (2) as a thermopneumatic actuator consisting of a glass capillary tube (3) closed at one end. oxyhydric flame, oxyacetylene flame, etc., which has on the outside a resistive layer of platinum (4), from a polydimethylsiloxane foil (5) in which two channels are practiced

Claims (1)

6 ”08 2008 perpendiculare unul pe celalalt (6). Intr-unui din canale se introduce actionatorul termopneumatic. Păduri feromagnetice (7) sunt atașate pependicular pe unul din canalele practicate in folia de PDMS.6 ”08 2008 perpendicular to each other (6). The thermopneumatic actuator is inserted in one of the channels. Ferromagnetic forests (7) are attached perpendicular to one of the channels practiced in the PDMS foil. Când stratului rezistiv ii este aplicata o tensiune electrica, temperatura acestuia creste, iar gazul din interiorul capilarului expandeaza, ceea ce are ca efect pomparea fluidului din canalul practicat in folia de PDMS. La răcire, gazul se contracta, realizând astfel suctiunea lichidului. Prin inchidearea si deschiderea celor doua valve electromagnetice se poate controla sensul pompării fluidului.When an electric voltage is applied to the resistive layer, its temperature rises and the gas inside the capillary expands, which has the effect of pumping the fluid from the channel practiced in the PDMS foil. Upon cooling, the gas contracts, thus sucking the liquid. By closing and opening the two solenoid valves, the direction of the pumping of the fluid can be controlled. Revendicăridemand 1. Micropompa, caracterizata prin aceea ca este realizata din doua valve electromagnetice miniaturale (1) care actioneaza in tandem cu un actionator termopneumatic.1. Micropump, characterized in that it is made of two miniature solenoid valves (1) that act in tandem with a thermopneumatic actuator. T. Micropompa conform revendicării 1, caracterizata prin aceea ca actionatorul termopneumatic este realizat dintr-un capilar de sticla închis la unul din capete care are aplicat pe suprafața exterioara un strat rezistiv (4).A micropump according to claim 1, characterized in that the thermopneumatic actuator is made of a closed glass capillary at one end which has a resistive layer applied to the outer surface (4). T Micropompa conform revendicării 1, caracterizata prin aceea ca actionatorul termopneumatic este realizat dintr-un tub metalic închis la unul din capete.Micropump according to Claim 1, characterized in that the thermopneumatic actuator is made of a closed metal tube at one end. *. Micropompa conform revendicării 1, caracterizata prin aceea ca actionatorul termopneumatic este realizat dintr-un tub ceramic închis la unul din capete, care are aplicat pe suprafața sa un strat rezistiv (4).*. The micropump according to Claim 1, characterized in that the thermopneumatic actuator is made of a ceramic tube closed at one end, which has a resistive layer applied to its surface (4). °. Micropompa conform revendicării 1, caracterizata prin aceea ca actionatorul termopneumatic este realizat dintr-un tub închis la unul din capete, din material plastic, care are aplicat pe suprafața exterioara un strat rezistiv (4).°. The micropump according to claim 1, characterized in that the thermopneumatic actuator is made of a closed tube at one end, made of plastic, which has a resistive layer applied on the outer surface (4). 1. Micropompa conform revendicării 1, caracterizata prin aceea ca actionatorul termopneumatic este realizat dintr-un tub din polimer conductor.Micropump according to Claim 1, characterized in that the thermopneumatic actuator is made of a conductive polymer tube. V. Micropompa conform revendicării 1, caracterizata prin aceea ca actionatorul termopneumatic are depus pe el un strat rezistiv care poate fi metalic (platina, aur, nichel etc.), semicondutor (oxid de ruteniu, oxid de staniu dopat cu indiu, aluminiu etc.).The micropump according to Claim 1, characterized in that the thermopneumatic actuator has a resistive layer on it which can be metallic (platinum, gold, nickel, etc.), semiconductor (ruthenium oxide, tin oxide doped with indium, aluminum, etc.). ). Λ. Micropompa conform revendicării 1, caracterizata prin aceea ca actionatorul termopneumatic are depus pe el un strat rezistiv care poate fi din carbon.. The micropump according to claim 1, characterized in that the thermopneumatic actuator has a resistive layer deposited thereon which can be made of carbon. 1. Micropompa conform revendicării 1, caracterizata prin aceea ca actionatorul termopneumatic are depus pe el o rezistenta bobinată realizata dintr-un conductor metalic.Micropump according to Claim 1, characterized in that the thermopneumatic actuator has a coiled resistor made of a metal conductor on it. 1 ·. Micropompa conform revendicării 1, construita din doua canale in polidimetilsiloxan, sou orice alt material elastic.1 ·. The micropump according to claim 1, constructed of two channels in polydimethylsiloxane, or any other elastic material. Micropompa conform revendicării 1 care are in construcția sa păduri feromagnetice, prin atracția carora de către electromagneti, realizează funcția de valva.The micropump according to claim 1, which has in its construction ferromagnetic forests, by the attraction of which, by electromagnets, performs the function of a valve.
ROA200800656A 2008-08-26 2008-08-26 Micro pump and process for making the same RO125556A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ROA200800656A RO125556A2 (en) 2008-08-26 2008-08-26 Micro pump and process for making the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ROA200800656A RO125556A2 (en) 2008-08-26 2008-08-26 Micro pump and process for making the same

Publications (1)

Publication Number Publication Date
RO125556A2 true RO125556A2 (en) 2010-06-30

Family

ID=64362143

Family Applications (1)

Application Number Title Priority Date Filing Date
ROA200800656A RO125556A2 (en) 2008-08-26 2008-08-26 Micro pump and process for making the same

Country Status (1)

Country Link
RO (1) RO125556A2 (en)

Similar Documents

Publication Publication Date Title
Kim et al. Recovery of nonwetting characteristics by surface modification of gallium-based liquid metal droplets using hydrochloric acid vapor
Khan et al. Giant and switchable surface activity of liquid metal via surface oxidation
Ainla et al. Electrical textile valves for paper microfluidics
KR101230247B1 (en) Micro pump
Wang et al. A compact and high flow-rate piezoelectric micropump with a folded vibrator
Diguet et al. Photoreversible fragmentation of a liquid interface for micro-droplet generation by light actuation
WO2016107974A1 (en) Microfluidic pump apparatus and methods
Sato et al. Electrohydrodynamic conduction pump with asymmetrical electrode structures in the microchannels
Ni et al. An integrated planar magnetic micropump
Caputo et al. Polydimethylsiloxane material as hydrophobic and insulating layer in electrowetting-on-dielectric systems
Gu et al. The use of polyurethane as an elastomer in thermoplastic microfluidic devices and the study of its creep properties
Flores et al. Low consumption single-use microvalve for microfluidic PCB-based platforms
CN103573576B (en) Magnetohydrodynamic micropump
Zhang et al. Manipulation of microfluidic droplets by electrorheological fluid
Rahbar et al. Design, fabrication and characterization of an arrayable all-polymer microfluidic valve employing highly magnetic rare-earth composite polymer
Hale et al. Electrowetting-based microfluidic operations on rapid-manufactured devices for heat pipe applications
Kawai et al. Microfluidic valve array control system integrating a fluid demultiplexer circuit
CN102428273A (en) Micropump
RO125556A2 (en) Micro pump and process for making the same
Ilami et al. Magnetically actuated tunable soft electronics
Kumar et al. Development of a solenoid actuated planar valveless micropump with single and multiple inlet–outlet arrangements
Pugliese et al. In-plane cost-effective magnetically actuated valve for microfluidic applications
Yoon et al. Development of an electrohydrodynamic ion-drag micropump using three-dimensional carbon micromesh electrodes
Chang et al. Electrostatically-driven elastomer components for user-reconfigurable high density microfluidics
CN109759153A (en) A kind of electrowetting valve and its control method for capillarity micro-fluidic chip