DK173129B1 - Coupling microelectro valve with a single membrane - Google Patents

Abstract

The solenoid provides flow switching to at least two ways and comprises a body with a recess from which the fluid arrival and departure conduits open and a single membrane, serving the role of shutter to these positioned by means of a rocker which closes it against one or the other of the conduits in e to the alteration of the position of a slider which moves in the valve body under the action of an electromagnet. The membrane (23) is made up of an external flexible part (36) and a central part (37) in which is embedded the rocker (24), which has a rod perpendicular to the plane of the membrane and engaging in a recess (12) in the slider (3). The slider is pivoted on an axis (21) traversing the rocker.

Description

DK 173129 B1DK 173129 B1

Opfindelsen angår en koblings-mikroelektroventil beregnet til brug med et fluidum af vilkårlig art, navnlig aggressive eller forurenede væsker. Den angår navnlig en mikroelektroventil med vippearm og en enkelt 5 membran.The invention relates to a coupling microelectro valve intended for use with a fluid of any kind, in particular aggressive or contaminated liquids. In particular, it relates to a rocker arm microelectro valve and a single membrane.

Der kendes mikroelektroventiler, der har to fleksible membraner af plastmateriale som en elektromagnet kan deformere, når man ønsker at lukke visse åbninger og åbne andre åbninger. Sådanne ventiler kan 10 imidlertid udvise ulemper, idet det er vanskeligt at få dem indstillet på grund af de mange bestanddele, der indgår i deres konstruktion. DK-patentansøgningen nr.Microelectro valves are known which have two flexible plastic material membranes that an electromagnet can deform when one wishes to close certain openings and open other openings. However, such valves may exhibit drawbacks as it is difficult to adjust them due to the many components included in their construction. DK patent application no.

97/88 omhandler en mikroelektroventil beregnet til at afhjælpe disse ulemper, hvilken to-vejsventil har et 15 ventilhus udformet med en fordybning forbundet med et fluidindløb og et fluidudløb, samt et bevægeligt organ, der virker som lukkeorgan for indløbet eller udløbet og som aktiveres af kernen i en elektromagnet. I denne mikroelektroventil udgøres det bevægelige organ af en 20 membran, der har en orienteret deformation og som ved hjælp af en vippearm presses mod en af de porte, der skal lukkes, idet vippearmen bringes til at vippe bort fra en af sine hvilestillinger svarende til en hvilken som helst af sine to lukkepositioner for membranen, ved 25 hjælp af et styreorgan, der langs ventilhuset bevæges ved hjælp af kernen i en elektromagnet.97/88 discloses a microelectro valve intended to alleviate these drawbacks, said two-way valve having a valve housing formed with a recess connected to a fluid inlet and a fluid outlet, as well as a movable member which acts as a closure means for the inlet or outlet and which is actuated by the core of an electromagnet. In this microelectro valve, the movable member is constituted by a diaphragm having an oriented deformation and which, by means of a rocker arm, is pressed against one of the gates to be closed, the rocker arm being flung away from one of its resting positions corresponding to a any of its two closing positions for the diaphragm, by means of a control means which is moved along the valve housing by means of the core of an electromagnet.

Hensigtsmæssigt udgøres dette styreorgan af en glider, der er forskydelig i ventilhuset, hvilen glider er opstillet i en brønd eller boring, som er udformet i 30 ventilhuset langs dettes akse. Den ene ende af boringen munder ud i den ene ende af huset, medens en central del af glideren er udformet med en åbning indrettet til at komme i indgreb med en stav, der er ud i ét med vip- 2 DK 173129 B1 > pearmen. DK-patentansøgning nr. 97/88 beskriver en fo-retrukken udførelsesform, hvor vippearmen er tag-formet med en fortrinsvis tilspidsende flade, som en fjeder presser imod en tilsvarende flade af lukkemembranen for 5 at presse den mod mindst én port, medens en hosliggende port holdes fri. Membranen, der således har forbindelse med vippearmens bevægelse, kan vippe om en akse, idet der til dette formål findes en kugle, der er beliggende i et sæde i ventilhuset og tjener til centrering af mem-10 branen.Conveniently, this guide is constituted by a slide which is slidable in the valve housing, the slide being arranged in a well or bore formed in the valve housing along its axis. One end of the bore ends at one end of the housing, while a central portion of the slider is formed with an opening arranged to engage a rod integral with the flip-flop. DK patent application No. 97/88 discloses a preferred embodiment in which the rocker arm is roof-shaped with a preferably tapered surface, which a spring presses against a corresponding surface of the closing membrane to press it against at least one port, while an adjacent gate kept free. The diaphragm thus associated with the movement of the rocker arm can tilt about an axis, for this purpose there is a ball located in a seat in the valve housing and serves to center the membrane.

For at begrænse antallet af bestanddele og gøre samlearbejdet enklere er det blevet foreslået direkte at støbe den med porte udformede part sammen med kuglen, samt også at udforme membranen ud i ét med vippe-15 armen.In order to limit the number of components and simplify the assembly work, it has been proposed to directly cast the port-shaped part together with the ball, as well as to form the membrane in unison with the rocker arm.

De af ansøgeren foretagne forsøg i dette område har ført til udformning af en elektroventil af dem i DK-ansøgning nr. 97/88 angivne art, men forenklet med hensyn til miniaturiseringen, den nemme fabrikation og 20 nøjagtigheden.The tests carried out by the applicant in this area have led to the design of an electro-valve of the kind specified in DK Application No. 97/88, but simplified in terms of miniaturization, ease of manufacture and accuracy.

Opfindelsen angår følgelig en mikroelektroventil til omstilling mellem mindst to stillinger, og som omfatter et ventilhus, som via en fordybning er forbundet med fluidindløbs- og fluidudløbskanaler, samt en enkelt 25 membran til lukning af disse kanaler ved, at membranen er indrettet til at blive bevæget via en vippearm ved hjælp af kernen i en elektromagnet for derved at bringe membranen mod den ene eller anden kanal afhængigt af den stilling, som indtages af en glidemuffe inde i ven-30 tilhuset ved bevægelse i ventilhusets længderetning ved hjælp af elektromagnetkernen, og hvor nævnte membran og vippearm udgør en enhed, idet membranen omfatter en ydre del, som er bøjelig, og en midterste del, i hvilken -j i > DK 173129 B1 r 3 vippearmen er Indlejret, samt en del af vippearmen er udformet som en knast vinkelret på membranens plan og indrettet til at kunne placeres i en udsparing i nævnte muffe.Accordingly, the invention relates to a microelectro valve for switching between at least two positions, comprising a valve housing connected via a depression to fluid inlet and fluid outlets, and a single diaphragm for closing these channels in that the diaphragm is arranged to be moved. via a rocker arm by means of the core of an electromagnet, thereby bringing the diaphragm towards one or the other channel depending on the position taken by a sliding sleeve inside the valve housing by movement in the longitudinal direction of the valve housing by means of the electromagnetic core, and said the diaphragm and rocker arm constitute a unit, the diaphragm comprising an outer part which is flexible and a middle part in which -j> DK 173129 B1 r 3 the rocker arm is embedded, and a part of the rocker arm is formed as a cam perpendicular to the diaphragm plan and arranged to be placed in a recess in said sleeve.

5 På baggrund af principielt kendt teknik fra nævnte danske patentansøgning samt DE-A-3 503 357, US-A-3 067 764 og 4 251 053 og GB patentskrift nr 1 226 481 er mikroventilen ifølge opfindelsen ejendommelig ved, at nævnte enhed omfattende membran og vippe-10 arm er tilsluttet en aksel, som er ført gennem vippearmen og lejret i vinger, der er ud i ét med ventilhuset.Based on known prior art from said Danish patent application and DE-A-3,503,357, US-A-3 067 764 and 4,251,053 and GB patent specification 1 226 481, the micro-valve according to the invention is characterized in that said unit comprising membrane and the rocker arm is connected to a shaft which is passed through the rocker arm and enclosed in wings integral with the valve body.

Hensigtsmæssigt kan membranen være fastklemt mellem kanterne af en i en del af ventilhusets side tilvejebragt udsparing og en profileret holder, der af-15 lukker denne udsparing, idet nævnte sidedel i hovedsagen har form som et V med stor åbningsvinkel, med to langsgående, ligeledes V-formede flanger på hver sin side af denne udsparing.Conveniently, the diaphragm may be clamped between the edges of a recess provided in a portion of the valve body side and a profiled holder that seals this recess, said side portion generally having the shape of a large opening angle V, having two longitudinal, also V -shaped flanges on either side of this recess.

Opfindelsen forklares nærmere i det følgende un-20 der henvisning til den skematiske tegning, hvor fig. 1 viser et tværsnitsbillede af mikroelek-troventilen, fig. 2 et tværsnitsbillede af ventilhuset, fig. 3 et planbillede af undersiden af ventilhu- 25 set, fig. 4 i større målestok et tværsnitsbillede af en til ventilhuset fastgjort holder, fig. 5 i større målestok et planbillede af oversiden af den med ventilhuset forbundne holder, og 30 fig. 6 og 7 henholdsvis et planbillede og et tværsnitsbillede af den i fig. 4 viste holder.The invention will be explained in more detail below with reference to the schematic drawing, in which fig. 1 is a cross-sectional view of the microelectro valve; FIG. 2 is a cross-sectional view of the valve body; FIG. 3 is a plan view of the underside of the valve body; FIG. 4 is an enlarged cross-sectional view of a holder attached to the valve housing; FIG. 5 is an enlarged plan view of the upper side of the holder connected to the valve housing; and FIG. 6 and 7 are respectively a plan view and a cross-sectional view of the one shown in FIG. 4.

Den viste mikroelektroventil har i hovedsagen form som et rektangulært hus, der består af plast, og *· 4 DK 173129 B1 som udgør ventilhuset 1. Dette ventilhus 1 er udformet med en cylindrisk brønd eller boring 2 i ventilhuset l's længdeakseretning AA' og i denne brønd eller boring er der anbragt en styreglider. En cylindrisk en-5 de 4 af den i boringen 2 forskydelige glider kan flugte med boringens udgangsende. Mellem bunden af boringen og gliderens modstående ende findes der et kammer 6, der gennem en åbning står i forbindelse med den bevægelige kerne 7 af en på tegningen ikke vist 10 elektromagnet. I den ene ende af kernen er der tilvejebragt et hoved med en knop 8 til indgreb med en kæbe 5 ved enden af glideren 3. Der er anbragt en fjeder 10 mellem bunden af kammeret 6 og glideren. Glideren er udformet med et hul af dybde mindre end gliderens 15 tykkelse, hvilket hul strækker sig radialt i forhold til aksen AA'.The microelectro valve shown is generally in the form of a rectangular housing consisting of plastic, and * · 4 DK 173129 B1 constituting the valve housing 1. This valve housing 1 is formed with a cylindrical well or bore 2 in the longitudinal axis AA 'of the valve housing 1 and in this in a well or bore a guide slider is arranged. A cylindrical end of 4 of the slides slidable in the bore 2 may align with the outlet end of the bore. Between the bottom of the bore and the opposite end of the slider there is a chamber 6 which communicates through an opening with the movable core 7 of an electromagnet not shown in the drawing. At one end of the core is provided a head with a knob 8 for engagement with a jaw 5 at the end of the slide 3. A spring 10 is arranged between the bottom of the chamber 6 and the slide. The slider is formed with a hole of depth less than the thickness of the slider 15, which extends radially with respect to the axis AA '.

Den ene side 34 af ventilhuset l har i hovedsagen form som et V med stor åbningsvinkel og er udformet med en aflang udskæring 32 i retning vinkelret 20 på blindhullet 12 i glideren. Som det nærmere fremgår af fig. 2 og 3, er denne aflange udskæring 32 centreret i en i hovedsagen oval skålflade frembragt ved støbning af den pågældende væg 34 af ventilhuset.One side 34 of the valve housing 1 is generally shaped as a V with a large opening angle and is formed with an oblong cut 32 in the direction perpendicular 20 to the blind hole 12 in the slide. As will be more apparent from FIG. 2 and 3, this elongate cut 32 is centered in a generally oval bowl surface formed by molding the respective wall 34 of the valve housing.

Skålfladen 33 og udskæringen 32 er centreret på I 25 toppen af V'et. På begge sider af de langsgående kanter i af skålfladen 33 er der således tilvejebragt to langsgående, v-formede flader ovenover og omkring skålen 33 og udskæringen 32 og langs dennes længdekant. Kanterne af skålfladen 33 er således udformede, 30 at de danner sæde for en tætnemembran 23, som er fastklemt mellem ventilhuset og en i dette fastskruet holder 16. Membranen og holderen 16 afgrænser et lille kammer 17.The bowl surface 33 and the cutout 32 are centered on the top 25 of the V. Thus, on both sides of the longitudinal edges of the bowl surface 33, two longitudinal v-shaped surfaces are provided above and around the bowl 33 and the cutout 32 and along its longitudinal edge. The edges of the bowl surface 33 are formed so as to form a seat for a seal diaphragm 23 which is clamped between the valve housing and a retained screw 16. The diaphragm and holder 16 define a small chamber 17.

.« “ Γ·ίΙη. ”“ Γ · ίΙη

IIII

!1 5 DK 173129 B1! 1 5 DK 173129 B1

Holderen 16 er udformet med tre små kanaler 18, 19, 20 for tilførsel og bortledning af fluidum.The holder 16 is formed with three small channels 18, 19, 20 for supply and discharge of fluid.

Hver af disse kanaler munder ud i kammeret 17, idet kanalerne 18 og 19 munder ud i dette kammer ved en fra 5 bunden i holderen udragende krave, mens den tredje kanal 20 direkte munder ud i bunden af holderen. Den særlige udformning af holderen ses klarere i fig. 4 og 5. Den har en øvre, V-formet flade svarende til ventilhusets sidevæg 34. De tre kanaler 18, 19, 20 munder ud 10 i en aflang fordybning 41, der også kan komme i indgreb med membranen 33. I begge sider af holderen 16 er der tilvejebragt sideribber 42, indbyrdes modstående i forhold til fordybningen 41. Disse ribber er indrettet til at samvirke med modsvarende fordybninger i 15 ventilhusets sidevæg 34, således at holdere får præcis placering på ventilhuset, og at akselen 21 får præcis placering.Each of these channels opens into the chamber 17, the channels 18 and 19 opening into this chamber at a collar protruding from the bottom of the holder, while the third channel 20 opens directly into the bottom of the holder. The particular design of the holder is seen more clearly in FIG. 4 and 5. It has an upper, V-shaped surface corresponding to the sidewall of the valve body 34. The three ducts 18, 19, 20 open out 10 in an elongate recess 41, which may also engage the diaphragm 33. On both sides of the the retainer 16 is provided with side ridges 42, mutually opposed to the recess 41. These ribs are adapted to cooperate with corresponding recesses in the side wall 34 of the valve housing, so that holders get precise placement on the valve body and the shaft 21 gets precise placement.

Membranen har en særlig udformning, som klarere ses i fig. 6 og 7. Den omfatter en yderpart 36 af me-20 get bøjeligt materiale i V-formet profilering svarende i hovedsagen til formen af ventilen og med oval form i størrelse svarende til skål-fladen 33, samt en central, aflang part 37, hvori der er indpresset eller lejret en vippearm 24. Formen af undersiden af vippe-25 armen svarer til membranprofilen, medens vippearmen på oversiden er udformet med en tap, der strækker sig vinkelret på membranplanet og gennem udskæringen 32 trænger ind i hullet 12 i glideren 3. Vippearmen er udformet med en tværgående åbning 38, der har aflang 30 tværsnitsform for at forhindre translationen af membranen 23. Når membranen 23 fastklemmes mellem ventilhuset 1 og holderen 16, placeres åbningen 38 på linie med åbninger 39 i de v-formede, langsgående si- ir 6 DK 173129 B1 deflanger af ventilhuset, hvilke sideflanger danner ψ sidevinger ovenover skålfladen 33. En tap 21 indlagt i åbningerne 39 og åbningen 38 i vippearmen tjener til placering af membranen og udgør drejetap for 5 denne. Det bemærkes, at denne drejetap befinder sig på den side af membranen, som ikke kommer i kontakt med fluidet.The diaphragm has a special design which is more clearly seen in FIG. 6 and 7. It comprises an outer portion 36 of a plurality of flexible material in V-shaped profiling substantially similar to the shape of the valve and of oval shape in size corresponding to the bowl surface 33, as well as a central, elongate portion 37, wherein a rocker arm is squeezed or mounted 24. The shape of the underside of the rocker arm corresponds to the diaphragm profile, while the rocker arm at the top is formed with a tab extending perpendicular to the diaphragm plane and through the cutout 32 penetrates the hole 12 in the slide 3. The rocker arm is formed with a transverse opening 38 having elongate 30 cross-sectional shape to prevent translation of the membrane 23. When the diaphragm 23 is clamped between the valve housing 1 and the holder 16, the opening 38 is aligned with openings 39 in the v-shaped longitudinal side. ir 6 DK 173129 B1 deflector of the valve body, which side flanges form ψ side wings above the bowl surface 33. A pin 21 inserted in the openings 39 and the opening 38 in the rocker arm serves to position the m the diaphragm and constitutes a pivot pin for this It is noted that this pivot is on the side of the membrane which does not come into contact with the fluid.

Som det fremgår af fig. 1 er vippearmens knast 27 således placeret, at den hælder lidt indad i hullet 10 21, således at den kommer i anlæg mod kanten af hullet.As shown in FIG. 1, the arm 27 of the rocker arm is positioned slightly inclined inwardly into the hole 10 21 so that it abuts against the edge of the hole.

I denne stilling af vippearmen kommer den bløde del 37 af membranen 23 i lukkende stilling for kanalen 19's udmunding, medens kanalen 18 har fri forbindelse med kammeret. Denne stilling er hvilestillingen for elek-15 troventilen, når elektromagneten ikke er aktiveret.In this position of the rocker arm, the soft portion 37 of diaphragm 23 is in the closing position of the outlet of the duct 19, while the duct 18 has free communication with the chamber. This position is the resting position of the electric valve when the electromagnet is not activated.

Fjederen 10 holder glideren 3 i den i fig. 1 viste højre stilling, hvor enden af glideren flugter med kanten af boringen 2. Det fluidum, som kammeret 17 modtager fra kanalen 20, kan frit strømme til kanalen 20 18.The spring 10 holds the slide 3 in the embodiment shown in FIG. 1, where the end of the slider aligns with the edge of the bore 2. The fluid that the chamber 17 receives from the channel 20 can flow freely to the channel 20 18.

Når elektromagneten aktiveres, trækker kernen 7 enden af glideren 3 gennem hovedet 8 imod fjederen 10's kraft. Glideren 3 bevæger sig til venstre bort fra den i fig. 1 viste stilling. Under denne bevægelse 25 kommer knasten 27’s side i anlæg mod kanten af hullet i] 12, hvorved vippearmen 24 bringes til at vippe. Da kommer membranen 23 til, ved vipning om sin tap 21, at ! indtage en hældende stilling modsat sin tidligere stil ling og den forlader kanalen 19 og lægger an mod ka-30 nalen 18, hvorved fluidet kan cirkulere mellem kanalerne 20 og 19. Da udmundingen af kanalerne 18 og 19 rager op over bunden af skålfladen, kan membranen 23's part 37 presses mod det tilhørende sæde, hvor-When the electromagnet is activated, the core 7 pulls the end of the slide 3 through the head 8 against the force of the spring 10. Slider 3 moves left away from the one shown in FIG. 1. During this movement 25, the side of the cam 27 bears against the edge of the hole in 12, thereby causing the rocker arm 24 to tilt. Then the diaphragm 23 arrives, by tilting its pin 21, that! assuming an inclined position opposite to its previous position and leaving the channel 19 and abutting the channel 18, whereby the fluid can circulate between the channels 20 and 19. As the mouth of the channels 18 and 19 protrudes above the bottom of the bowl surface, the membrane can Part 37 of 23 is pressed against the associated seat where

.-ii F.-ii F

=m 7 DK 173129 B1 ved undgås en manglende tætning på grund af eventuelle urenheder.= m 7 DK 173129 B1 by avoiding a missing seal due to possible impurities.

Når elektromagneten ikke længere aktiveres bringer fjederen 10 glideren 3 tilbage i sin oprindelig 5 stilling, fig. 1, og fjederkraften sikrer via vippearmen, at der er lukning i denne stilling. Det bemærkes, at brugeren også kan betjene ventilen ved at trykke på den tilgængelige endeflade 4, der flugter med elektro-ventilens endeflade, således at ventilen kan aktiveres 10 manuelt, skulle elektromagneten fejle.When the electromagnet is no longer activated, the spring 10 returns the slider 3 to its original 5 position. 1, and the spring force ensures via this rocker arm that there is a closure in this position. It is noted that the user can also operate the valve by pressing the available end face 4 which aligns with the end face of the electro-valve so that the valve can be actuated manually should the electromagnet fail.

Da kammeret 17 mellem membranen 23 og holderen 16 har lille størrelse, er der kun en lille fluidmængde deri, hvilket gør renholdelsen nemmere. Enkeltmembranen virker ikke alene som aflukkende skive på 15 sit sæde, men den sikrer også perfekt aflukning mellem fluidet og den boring 2, hvori glideren 3 kan bevæge sig. Denne tætte aflukning sikres for såvel trykvæsker som gasfluida under højt eller lavt tryk eller endog overfor vakuum. Der er for ventilhuset l opnået be-20 skedne dimensioner, uden at dette går ud over fluidgennemstrømningsarealet i kanalerne 18, 19 og 20.Since the chamber 17 between the diaphragm 23 and the holder 16 is small in size, there is only a small amount of fluid therein, which makes cleaning easier. Not only does the single diaphragm act as a sealing disc on its seat, but it also ensures perfect closure between the fluid and the bore 2 in which the slider 3 can move. This tight closure is ensured for both pressurized liquids and gas fluids under high or low pressure or even in the face of vacuum. For the valve body 1, small dimensions have been obtained, without going beyond the fluid flow area in the ducts 18, 19 and 20.

Den beskrevne koblings-mikroelektroventil kan seriemonteres i et piadsbegrænset rum og kanalerne på én og samme side gør monteringsarbejdet nemmere. Mik-25 roelektroventilen kan hensigtsmæssigt fremstilles i materialer, der kan modstå aggressive fluida, og vil fortrinsvis anvendes i medicinske analyseapparater eller i anlæg til behandling af konsumprodukter.The described coupling microelectro valve can be mounted in series in a space-limited space and the channels on one and the same side make assembly work easier. The microelectro valve may conveniently be made from materials that can withstand aggressive fluids and will preferably be used in medical analyzers or in plants for the treatment of consumer products.

Claims (6)

8 DK 173129 B18 DK 173129 B1 1. Mikroelektroventil til omstilling mellem mindst to stillinger, og som omfatter et ventilhus (i), som via en fordybning (17) er forbundet med fluidindløbs- og fluidudløbskanaler (18,19,20), samt en enkelt 5 membran (23) til lukning af disse kanaler ved, at membranen er indrettet til at blive bevæget via en vippearm (24) ved hjælp af kernen i en elektromagnet for derved at bringe membranen mod den ene eller anden kanal afhængigt af den stilling, som indtages af en gli-10 demuffe (3) inde i ventilhuset ved bevægelse i ventilhusets længderetning ved hjælp af elektromagnetkernen, og hvor nævnte membran (23) og vippearm (24) udgør en enhed, idet membranen omfatter en ydre del (36), som er bøjelig, og en midterste del (37), i hvilken vippearmen 15 (24) er indlejret, samt en del af vippearmen er udformet som en knast (27) vinkelret på membranens plan og indrettet til at kunne placeres i en udsparing (12) i nævnte muffe (3), kendetegnet ved, at nævnte enhed omfattende membran (23) og vippearm (24) er til-20 sluttet en aksel (21), som er ført gennem vippearmen og lejret i vinger (35), der er ud i ét med ventilhuset ; (i).A microelectro valve for switching between at least two positions, comprising a valve body (i) connected via a depression (17) to fluid inlet and fluid outlet channels (18,19,20), and a single membrane (23) to closure of these channels by the diaphragm being arranged to be moved via a rocker arm (24) by means of the core of an electromagnet, thereby bringing the diaphragm towards one or the other channel depending on the position occupied by a slide 10. demuffer (3) inside the valve body by movement in the longitudinal direction of the valve body by means of the electromagnetic core, said membrane (23) and rocker arm (24) forming a unit, the membrane comprising an outer portion (36) which is flexible and a middle member. part (37) in which the rocker arm 15 (24) is embedded, and a part of the rocker arm is formed as a cam (27) perpendicular to the plane of the diaphragm and arranged to be placed in a recess (12) in said sleeve (3) , characterized in that said unit comprising membrane ( 23) and rocker arm (24) is connected to a shaft (21) which is passed through the rocker arm and mounted in wings (35) integral with the valve body; (in). 2. Mikroelektroventil ifølge krav 1, k e n d e - · •TI '] tegnet ved, at udsparingen (12), som vippearmens 1 25 knastformede del (27) er udformet til at blive inde- ~ holdt i, har en ringe dybde, som er mindre end tykkel sen af muffen (3), samt er radialt orienteret i forhold TI til ventilhusets akse (AA’ ). 3. ventil ifølge krav 1, og omfattende en mem-30 bran (23), der er fastklemt mellem kanterne af en i ventilhusets sidedel tilvejebragt udsparing (32) og en Il T il DK 173129 B1 ’ 9 profileret holder (16), der aflukker denne udsparing, kendetegnet ved, at nævnte sidedel (34) i hovedsagen har form som et V med bred åbningsvinkel, med to ligeledes v-formede, langsgående flanger (35) på 5 hver sin side af udsparinge (32).Microelectro valve according to claim 1, characterized in that the recess (12), in which the cam-shaped part (27) of the rocker arm (25) is designed to be contained, has a small depth which is less than the thickness of the sleeve (3), and is radially oriented relative to T1 to the valve body axis (AA '). A valve according to claim 1, comprising a membrane (23) which is clamped between the edges of a recess (32) provided in the side portion of the valve housing and a profile (16) profiled holder (16) which closes this recess, characterized in that said side portion (34) is substantially shaped as a V with a wide opening angle, with two similarly v-shaped longitudinal flanges (35) on each side of recesses (32). 4. Ventil ifølge ethvert af kravene 1-3, k e n -detegnet ved, at udsparingen (32) er centreret i en skålformet, i hovedsagen oval flade, frembragt ved støbning i ventilhusets sidedel (34), hvilken skålflade 10 danner sæde for tætnemembranen (23).Valve according to any one of claims 1-3, characterized in that the recess (32) is centered in a bowl-shaped, generally oval surface, produced by molding in the side part (34) of the valve housing, which bowl surface 10 forms a seat for the sealing membrane ( 23). 5. Ventil ifølge krav 2, kendetegnet ved, at der i begge sider af holderen (16) findes ribber (42) indrettede til at samvirke med modsvarende fordybninger (35) i ventilhusets sidedel (34).Valve according to claim 2, characterized in that on both sides of the holder (16) there are ribs (42) arranged to cooperate with corresponding recesses (35) in the side part (34) of the valve housing. 6. Ventil ifølge krav 1, kendetegnet ved, at toppen (21) er ført igennem en åbning (38), der strækker sig tværs igennem vippearmen (24) og har aflang tværsnitsform. TValve according to claim 1, characterized in that the top (21) is passed through an opening (38) extending transversely through the rocker arm (24) and having elongated cross-sectional shape. T