NO137465B

NO137465B - KITCHEN FAN.

Info

Publication number: NO137465B
Application number: NO763751A
Authority: NO
Inventors: Nils Randolf Bergmark; Thord Ingvar Eugen Westermark
Original assignee: Futurumverken Ab
Priority date: 1975-11-05
Filing date: 1976-11-04
Publication date: 1977-11-21
Also published as: NL179557B; AU506348B2; DE2649154A1; FR2330469B1; AU1923176A; FI58830C; ES224261U; DK149585B; DD127274A5; FI58830B; IT1075179B; GB1569147A; DK499876A; NL7612262A; DK149585C; ES224261Y; NO137465C; ATA819376A; SE385092B; CA1045886A

Abstract

Kjøkkenventilator.Kitchen fan.

Description

Foreliggende oppfinnelse angår en kjøkkenventilator som angitt i innledningen til vedlagte krav 1. The present invention relates to a kitchen ventilator as stated in the introduction to the attached claim 1.

Kjente kjøkkenventilato.rer av denne type er vanlig-vis bygget opp som en under overskapets underside foreliggende luftinnsugningshette, hvilken stikker frem foran skapets form, samt en over denne hette, inne i overskapet montert viftedel. Kjøkkenventilatoren blir derved plasskrevende og vanskelig å montere. På grunn av sin uregelmessige form blir den også vanskelig å pakke kompakt for lagring og transport mellom pro-dusent og monteringsstedet. Known kitchen ventilators of this type are usually constructed as an air intake hood present under the upper side of the upper cabinet, which protrudes in front of the shape of the cabinet, as well as a fan part mounted above this hood, inside the upper cabinet. The kitchen ventilator therefore takes up space and is difficult to install. Due to its irregular shape, it is also difficult to pack compactly for storage and transport between the producer and the assembly site.

Hensikten med oppfinnelsen er å unngå disse ulemper The purpose of the invention is to avoid these disadvantages

og skaffe til veie en kjøkkenventilator som har kompakt konstruk-sjon og regelmessige konturer. and provide a kitchen ventilator that has a compact construction and regular contours.

Ifølge oppfinnelsen oppnås dette med en kjøkken-ventilator som har de i vedlagte hovedkravs karakteristikk angitte trekk. According to the invention, this is achieved with a kitchen ventilator which has the features specified in the characteristics of the main requirements attached.

En kjøkkenventilator utformet i samsvar med oppfinnelsen kan fremstilles som en regelmessig kasse med seks plane sider uten fremstikkende partier. Ved at kjøkkenventilatorens komponenter er anordnet i sideretning utenfor viftehuset kan ventilatorens totale byggehøyde bestemmes av det rom som kreves for viften. Derved er det mulig å utføre viften lav og med stor diameter fordi den i motsetning til hva som tidligere var mulig, kan tillates å stikke ut utenfor overskapets kontur. Hele kjøkkenventilatoren kan derfor utføres med meget lav bygge- A kitchen ventilator designed in accordance with the invention can be produced as a regular box with six flat sides without protruding parts. As the kitchen ventilator's components are arranged laterally outside the ventilator housing, the ventilator's overall height can be determined by the space required for the ventilator. Thereby, it is possible to design the fan low and with a large diameter because, in contrast to what was previously possible, it can be allowed to protrude beyond the contour of the upper cabinet. The entire kitchen ventilator can therefore be made with very low construction

høyde, f.eks. bare 8 cm og derved lett monteres under foreliggende overskap fordi det ikke er nødvendig å anordne huller i skapet for oppstikkende viftehus. Ved.at luftkanalenes vegger helt danner bro over avstanden mellom bunnplaten og overdelens øvre vegg dannes også en ut fra forpaknings- og transportssyns- height, e.g. only 8 cm and thus easily installed under the existing overhead cabinet because it is not necessary to arrange holes in the cabinet for protruding fan housings. By the fact that the walls of the air ducts completely form a bridge over the distance between the bottom plate and the upper wall of the upper part, a

punkt trykkfast enhet. point pressure resistant unit.

Hvis kjøkkenventilatorens elektriske komponenter samles i overdelen og de luftledende detaljer anordnes på den løsbare bunnplate vinnes meget god adgang for rengjøring. If the kitchen ventilator's electrical components are collected in the upper part and the air-conducting details are arranged on the detachable bottom plate, very good access for cleaning is gained.

Fettoppsamlingsfilteret anordnes hensiktsmessig i form av en tynn filterkake som er løsbart festet til bunnplaten og direkte uten forbindende luftkanaler leder luften inn i radialviftens viftehjul. Derved spares inn plasskrevende inn-sugningsluftkanaler. The grease collection filter is appropriately arranged in the form of a thin filter cake which is releasably attached to the base plate and directs the air into the radial fan's fan wheel without connecting air ducts. This saves space-consuming intake air ducts.

Når kjøkkenventilatoren er forsynt med nedover rettede lamper, formes lampehusene hensiktsmessig av gjennomskinnelig plastmateriale og anordnes løsbart forbundet med den av plate fremstilte bunnplate. Som et alternativ kan hele bunnplaten utføres av gjennomskinnelig plastmateriale. When the kitchen ventilator is equipped with lamps directed downwards, the lamp housings are appropriately formed from translucent plastic material and arranged to be releasably connected to the bottom plate made of sheet metal. As an alternative, the entire bottom plate can be made of translucent plastic material.

Kjøkkenventilatoren ifølge oppfinnelsen utformes fortrinnsvis som kombinert evakuerings- og resirkulåsjons-vehtilator, idet en ventil er anordnet for å lede den fra viften kommende luft til den ene eller begge av to utblåsningsåpninger i kjøkkenventilatoren. Ventilen består i dette tilfelle hensiktsmessig av en ventilklaff som strekker seg mellom bunnplaten og overdelens øvre vegg og bidrar derved til å avstive kjøkkenventilatoren under transport samtidig som der fåes en billig og strømningsteknisk gunstig ventilkonstruksjon. Lukt-fjerningsfilteret kan anordnes i en holder på undersiden av overdelens øvre vegg langs dennes forreste kant, idet et luftkammer dannes av bunnplaten under filterenheten. På dette om-rådet kan bunnplaten forsynes med nedover rettede luftavløps-åpninger, hvorved der frembringes et skjermluftslør som hindrer at damper som stiger opp fra kjøkkenkomfyren skal kunne strømme ut i sideretningen forbi kjøkkenventilatoren. Anordningen har den fordel at skjermluftsløret frembringes bare når kjøkken-ventilatoren gjennom ventilen er innstilt for resirkulering av luften. I denne driftstilstand kan nemlig den utstrømmende re-sirkulerte luft frembringe forstyrrende luftstrømninger oppover forbi kjøkkenventilatoren. Når kjøkkenventilatoren er innstilt for evakuering av innsuget luft, tilstrebes maksimalt evakue-ringsvolum, samtidig som behovet for avskjermende luftslør er mindre. The kitchen ventilator according to the invention is preferably designed as a combined evacuation and recirculation ventilator, with a valve arranged to direct the air coming from the fan to one or both of two exhaust openings in the kitchen ventilator. In this case, the valve appropriately consists of a valve flap that extends between the bottom plate and the upper wall of the upper part and thereby helps to stiffen the kitchen ventilator during transport, while at the same time obtaining a cheap and flow-technically favorable valve construction. The odor removal filter can be arranged in a holder on the underside of the upper part's upper wall along its front edge, an air chamber being formed by the bottom plate below the filter unit. In this area, the base plate can be provided with downwards-directed air drainage openings, whereby a screen air veil is created which prevents vapors rising from the kitchen stove from being able to flow out in the lateral direction past the kitchen ventilator. The device has the advantage that the screen air veil is produced only when the kitchen ventilator through the valve is set to recirculate the air. In this operating condition, the flowing re-circulated air can create disturbing air currents upwards past the kitchen ventilator. When the kitchen ventilator is set to evacuate sucked-in air, maximum evacuation volume is sought, while the need for shielding air curtains is smaller.

En ytterligere fordel med den ovenfor beskrevne utformning av ventilatoren med ventilklaff er at betjenings-organet for ventilen kan utformes direkte på ventilklaffen og være tilgjengelig gjennom en åpning i bunnplaten, slik at over-føringsmekanismer mellom betjeningsorgan og ventil unngås, samtidig som ingen betjeningsorgan stikker frem utenfor kjøkken-ventilatorens kontur. A further advantage of the above-described design of the ventilator with valve flap is that the operating member for the valve can be designed directly on the valve flap and be accessible through an opening in the bottom plate, so that transfer mechanisms between operating member and valve are avoided, while no operating member protrudes outside the contour of the kitchen ventilator.

Ytterligere egenskaper og fordeler ved oppfinnelsen vil fremgå av følgende beskrivelse og et utførelses-eksempel i form av en for både evakuering og resirkulasjon beregnet kjøkkenventilator, under henvisning til tegningene, hvor fig. 1 viser kjøkkenventilatoren i perspektiv demonert i sine tre hovedkomponenter,, idet fig. la viser overdelen, fig. lb bunnplaten og fig. lc frontkappen, fig. 2 viser et snitt av kjøkkenventilatoren etter linjen II-II på fig. 1, idet dog fettfilteret er skåret langs den på fig. 3 viste snittlinje II-II, fig. 3 viser fettfilteret sett fra ventilatorens innerside, fig. 4 viser i perspektiv skrått bakfra ventilatorens ene bakre hjørne med to alternative avløpstilkoblinger tegnet ut, fig. 5 viser kjøkkenventilatorens ventil og ventilbetjenings-organ sett i vertikalsnitt etter linjen V-V på fig. 1, og fig. 6 viser hovedsakelig samme riss med ventilen under demontering. Further properties and advantages of the invention will be apparent from the following description and an embodiment in the form of a kitchen ventilator intended for both evacuation and recirculation, with reference to the drawings, where fig. 1 shows the kitchen ventilator in perspective, demonstrated in its three main components, as fig. la shows the upper part, fig. lb base plate and fig. lc front cover, fig. 2 shows a section of the kitchen ventilator along the line II-II in fig. 1, although the grease filter is cut along it in fig. 3 showed section line II-II, fig. 3 shows the grease filter seen from the inside of the ventilator, fig. 4 shows in perspective obliquely from the rear one rear corner of the ventilator with two alternative drain connections drawn out, fig. 5 shows the kitchen ventilator's valve and valve operating device seen in vertical section along the line V-V in fig. 1, and fig. 6 shows essentially the same drawing with the valve during disassembly.

Kjøkkenventilatoren er bygget opp av tre hovedsakelig av platemateriale utførte hovedkomponenter: en ovérdel 1, en bunnplate 2 og en frontkappe 3. I sammensatt tilstand danner disse tre hovedkomponenter en kasseformet kjøkkenventi-latorenhet med seks plane sider. Overdelen 1 dannes av en nedover åpen kasse med en øvre vegg 4, samt fra denne vertikalt nedover rettede side-og bakvegger 5, 6 henholdsvis 7. Bunn-flaten .2 er utformet som en hovedsakelig plan plate med en vertikalt oppstående bakvegg 8. Frontkappen 3 er utformet som en nedover og bakover åpen kasse med en øvre vegg 9 og fra.denne vertikalt nedover ragende side- og frontvegger 10, 11 henholdsvis 12. I arbeidsstilling bæres bunnplaten 2 ved sin bakre kant av en smal platehylle 13 som stikker frem horisontalt fra underkanten av overdelens 1 bakre vegg 7. På forsiden bæres bunnplaten 2 ved hjelp av frontkappen 3, hvis side- og frontvegger 10-12 har en langs underkanten løpende, horisontalt innover i frontkappen rettet platehylle 14, hvilken når kappen 3 er skjøvet inn på overdelen 1, griper opp under bunnplaten 2 langs dennes forreste kant, og forreste deler av dens sidekanter og derved bærer denne. Overdelens 1 øvre vegg 4 og sidevegger 5, 6 er trykket inn henholdsvis ned innenfor overdelens en forreste parti som omsluttes av frontkappen 3, slik at yttersidene av-frontkappens 3 og de bakre deler av overdelens 1 øvre vegger og sidevegger vil komme til å ligge i plan med hverandre ved påskjøvet frontkappe 3. Den inntrykkede kant 15 er vist for sideveggene 5 og 6 på fig. 1 og for den øvre vegg 4 på fig. 2, hvorav også fremgår hvordan frontkappens øvre vegg ligger i plan med den bakre del av overdelens 1 Øvre vegg 4. The kitchen ventilator is made up of three main components made mainly of sheet material: an upper part 1, a bottom plate 2 and a front cover 3. When assembled, these three main components form a box-shaped kitchen ventilator unit with six flat sides. The upper part 1 is formed by a downwardly open box with an upper wall 4, as well as from this vertically downwards directed side and rear walls 5, 6 and 7 respectively. The bottom surface .2 is designed as a mainly flat plate with a vertically raised rear wall 8. The front cover 3 is designed as a downwards and backwards open box with an upper wall 9 and side and front walls 10, 11 and 12 projecting vertically downwards from this. In working position, the bottom plate 2 is supported at its rear edge by a narrow plate shelf 13 which protrudes horizontally from the lower edge of the rear wall 7 of the upper part 1. On the front, the bottom plate 2 is carried by means of the front cover 3, whose side and front walls 10-12 have a plate shelf 14 running along the lower edge, horizontally inward into the front cover, which when the cover 3 is pushed in on the upper part 1, grips up under the bottom plate 2 along its front edge, and front parts of its side edges and thereby supports it. Upper part 1's upper wall 4 and side walls 5, 6 are pressed respectively down into a front part of the upper part which is enclosed by the front cover 3, so that the outer sides of the front cover 3 and the rear parts of the upper part 1's upper walls and side walls will lie in level with each other when the front cover 3 is pushed on. The impressed edge 15 is shown for the side walls 5 and 6 in fig. 1 and for the upper wall 4 in fig. 2, which also shows how the upper wall of the front cover lies flush with the rear part of the upper part 1 Upper wall 4.

Kjøkkenventilatoren er beregnet på opphengning under et skap eller konsoll over en kjøkkenkomfyr. For dette for-mål er overdelens 1 øvre vegg 4 forsynt med på hensiktsmessig, måte anbragte huller for festeskruer. Fig. la viser en utførelse med 4 huller 16, hvorav 2 er skjult av veggen 6. The kitchen ventilator is intended for suspension under a cabinet or console above a kitchen stove. For this purpose, the upper wall 4 of the upper part 1 is provided with suitably arranged holes for fastening screws. Fig. la shows an embodiment with 4 holes 16, of which 2 are hidden by the wall 6.

Samtlige elektriske detaljer er samlet i overdelen 1. Viften elektriske motor 17 er skrudd fast hovedsakelig sentralt på undersiden av den øvre vegg (se fig. 1 og 2). Motorens rotor 18 bærer et radial viftehjul 19 som omfatter en ytre krans av viftéblader 20 stående vertikalt i arbeidsstillingen hvilke viftéblader rager ut fra en viftehjulskive 21 i Vifte-bladenes 20 frie ender bindes sammen.av en ring 22. Hele viftehjulet 19 er utført i ett stykke av ettergivende plastmateriale, idet viftehjulskivens 21 indre- del er bøyd ned for dannelsen av et nav 23 som er forsynt med vertikale slisser 24. Derved kan viftehjulet 19 festes løsbart til elektromotorens 17 rotor 18 ved at en vulst 25 på navet 23 griper fjærende inn i et ring-formet spor 26 på.rotoren 18. All electrical details are gathered in the upper part 1. The fan electric motor 17 is screwed mainly centrally to the underside of the upper wall (see fig. 1 and 2). The motor's rotor 18 carries a radial fan wheel 19 which comprises an outer ring of fan blades 20 standing vertically in the working position, which fan blades protrude from a fan wheel disk 21 in which the free ends of the fan blades 20 are tied together by a ring 22. The entire fan wheel 19 is made in one piece of flexible plastic material, the inner part of the fan wheel disk 21 being bent down to form a hub 23 which is provided with vertical slots 24. Thereby, the fan wheel 19 can be releasably attached to the rotor 18 of the electric motor 17 by a bead 25 on the hub 23 springing in in a ring-shaped groove 26 on the rotor 18.

Strømtilførselen til motoren 17 foregår ved hjelp av ikke nærmere viste elektriske ledere som er trukket i en kanal dannet av en under overdelens 1 øvre vegg fastsveiset platekanal 27. Denne strekker seg på tvers over den største del av overdelens 1 bredde. Ved den venstre éride av platerennen- 27 er festet en lampeholder 28 for en glødelampe 29. Den elektriske leder 30 for strømforsyning til lampen er likeledes trukket i platekanalen 27. På tilsvarende måte er der ved' den høyre ende av platekanalen 27 festet én lampeholder 31 for en glødelampe 32. The power supply to the motor 17 takes place by means of electrical conductors, not shown in more detail, which are drawn in a channel formed by a plate channel 27 welded under the upper wall of the upper part 1. This extends transversely over the largest part of the width of the upper part 1. At the left edge of the plate channel 27, a lamp holder 28 for an incandescent lamp 29 is attached. The electrical conductor 30 for power supply to the lamp is likewise drawn in the plate channel 27. In a similar way, at the right end of the plate channel 27, one lamp holder 31 is attached for an incandescent lamp 32.

En del av platekanalens 27 høyre parti og eventuelt lampeholderen 31 omsluttes av en boks 33 laget av platemateriale eller plast, hvilken boks slutter seg til den øvre vegg 4 og har vertikale sidevegger 34, en vertikal frontvegg 35 og en hovedsakelig plan bunn 36. Boksen 33 strekker seg fra platekanalen 27 helt frem til overdelens 1 forreste kant og har sin forreste vegg 35 i plan med denne. Platekanalen 27 er på ikke vist måte åpnet inne i boksen 33 og denne inneholder f.eks. koblingsklemmer, strømbrytere og kondensatorer for innkobling av turtallsregulering for viftemotoren 17, såvel som innkobling av lampene 29, 32. Disse i bg for seg kjente komponenter er ikke vist i detalj på tegningen, men fig. 1 viser 3. trykk-knapper 37 som rager ut fra' den forreste vegg 35 av boksen 33 Part of the right part of the plate channel 27 and possibly the lamp holder 31 is enclosed by a box 33 made of plate material or plastic, which box joins the upper wall 4 and has vertical side walls 34, a vertical front wall 35 and a mainly flat bottom 36. The box 33 extends from the plate channel 27 all the way to the front edge of the upper part 1 and has its front wall 35 flush with this. The plate channel 27 is opened in a manner not shown inside the box 33 and this contains e.g. connection terminals, circuit breakers and capacitors for switching on the speed control for the fan motor 17, as well as switching on the lamps 29, 32. These components known in the art are not shown in detail in the drawing, but fig. 1 shows 3rd push-buttons 37 projecting from the front wall 35 of the box 33

og stikker frem gjennom en åpning 37 markert i frontkappens 3 forreste vegg 12 og. utnyttes til manøvrering eller betjening av bryteren i boksen 33. Strømtilførselen til boksen 33 foregår ved hjelp av en elektrisk tilførselsledning 38 som er ført i en fra boksen 33 rett bakover under den øvre vegg 4 forløpende kabelrenne 39 av plast. Kabelrennens 39 forreste ende bæres av boksens 33 bakre vegg {ikke vist). Kabelrennens 39 bakre ende strekker seg gjennom et hull anordnet i overgangen mellom overdelens 1 bakre vegg 7 og den øvre vegg 4, samt er forsynt med en vinkelflens 40 som utenfra ligger an mot disse vegger på overdelen 1 (se fig. 4). Kabelen 38 kan derved trekkes ut av overdelen i retning bakover eller oppover uten å strekke seg Utenfor overdelens kontur i den ikke anvendte retning. and protrudes through an opening 37 marked in the front wall 12 of the front cover 3 and. is used for maneuvering or operating the switch in the box 33. The power supply to the box 33 takes place by means of an electrical supply line 38 which is led in a plastic cable channel 39 running from the box 33 directly backwards under the upper wall 4. The front end of the cable tray 39 is supported by the rear wall of the box 33 (not shown). The rear end of the cable duct 39 extends through a hole arranged in the transition between the rear wall 7 of the upper part 1 and the upper wall 4, and is provided with an angle flange 40 which abuts from the outside against these walls on the upper part 1 (see fig. 4). The cable 38 can thereby be pulled out of the upper part in the direction backwards or upwards without extending Outside the contour of the upper part in the direction not used.

De til føring av luftstrømmer beregnede detaljer kjøkkenventilatoren er hovedsakelig samlet i bunnplaten 2. Således dannes viftehuset av et vertikalt opprettstående platebånd 41 (fig. lb) som er sveiset fast til bunnplaten 2 og er bøyd i spiralform og har den ene ende sveiset fast til bunnplatens 2 bakvegg 8. Platebåndets 41 annen ende ligger i en avstand fra bakveggen 8. Platebåndet 41 har samme høyde som bakveggen 8 og denne høyde er slik tilpasset at platebåndet med sin overkant ligger tettende an mot overdelens øvre vegg 4 når bunnplaten 2 er hengt opp i arbeidsstilling i overdelen 1. Viftehuset begrenses således oppad av overdelens øvre vegg 4, nedad av bunnplaten 2 og i sideretning av platebåndet 41 som danner viftehusveggen. Viftens avløpsåpning dannes .mellom platebåndets 41 frie ende og bakveggen 8. Platebåndet 41 er ved sin overkant forsynt-med utsparinger 42 beregnet på å gripe over og slutte seg tettende inntil overdelens 1 platekanal 27. The details designed to guide the air currents of the kitchen ventilator are mainly collected in the base plate 2. Thus, the fan housing is formed by a vertically upright plate band 41 (fig. 1b) which is welded to the base plate 2 and is bent in a spiral shape and has one end welded to the base plate 2 rear wall 8. The other end of the sheet band 41 is at a distance from the back wall 8. The sheet band 41 has the same height as the back wall 8 and this height is adapted so that the sheet band with its upper edge rests tightly against the upper wall 4 of the upper part when the bottom plate 2 is suspended in working position in the upper part 1. The fan housing is thus limited upwards by the upper wall 4 of the upper part, downwards by the bottom plate 2 and laterally by the sheet band 41 which forms the fan housing wall. The fan's drain opening is formed between the free end of the sheet band 41 and the rear wall 8. The sheet band 41 is provided at its upper edge with recesses 42 designed to grip over and connect tightly to the sheet channel 27 of the upper part 1.

Bunnplaten 2 er innenfor platebåndet 41 som danner <y>iftehuset, og sentralt under overdelens viftehjul 19 forsynt med en luftinnsugningsåpning 43, hvori er anbragt et fettopp-samlingsfilter 44. Det spesielt på fig. 2 og 3 viste fett-filter 44 er utformet som en flat sirkulær filterenhet be-stående av en øvre og en nedre filterholder 45 henholdsvis 46 og en mellomliggende, ring 47 av fettfUtrerende materiale, såsom ekspandert med tall i flere skikt, fibermaterlalé eller porøs skumplast. Filteringen 47 hviler på den nedre filterholder 46 som er utført som et ekehjul uten senter og har en aksialt rettet, langs sin ytre omkrets forløpende vegg 4 8 beregnet på å passe inn i en fra bunnplaten 2 opprettstående platehals 49. Den nedre filterholder 46 er i likhet med den øvre filterholder 45 utført av ettergivende plastmateriale og er ved veggens 48 overkant utformet langs omkretsen med jevnt fordelte, radialt fremstikkende knaster 50 som er innrettet for å gripe over platehalsens 49 overkant og derved holde fast filterenheten 44 til bunnplaten 2. Filterenhetens 44 stilling defineres av en ringflens 51 som stikker ut radialt frå veggens 48 underkant og griper inn i en ombøyning 52 mellom bunnplaten The bottom plate 2 is inside the plate band 41 which forms the <y>ifte housing, and centrally under the fan wheel 19 of the upper part is provided with an air intake opening 43, in which is placed a grease collection filter 44. The particular in fig. The grease filter 44 shown in 2 and 3 is designed as a flat circular filter unit consisting of an upper and a lower filter holder 45 and 46, respectively, and an intermediate ring 47 of grease-filtering material, such as expanded with numbers in several layers, fiber mater lalé or porous foam plastic . The filter ring 47 rests on the lower filter holder 46, which is designed as a spoke wheel without a center and has an axially directed wall 48 running along its outer circumference intended to fit into a plate neck 49 standing up from the bottom plate 2. The lower filter holder 46 is in similar to the upper filter holder 45 made of flexible plastic material and at the upper edge of the wall 48 is designed along the circumference with evenly distributed, radially protruding knobs 50 which are designed to grip over the upper edge of the plate neck 49 and thereby hold the filter unit 44 to the bottom plate 2. Position of the filter unit 44 is defined by an annular flange 51 which protrudes radially from the lower edge of the wall 48 and engages in a bend 52 between the bottom plate

2 og dennes platehals 49. Veggen 48 er ved hjelp av radiale 2 and its plate neck 49. The wall 48 is by means of radials

eker 53 forbundet med en indre opprettstående vegg 54. Ekene avstives av to konsentriske sirkulære ribber 55 og 56. Kjøkken-ventilatoren danner dessuten en stiv trykksterk enhet ved at viftehusets platebånd 41, lampehusenes vegger 70-72 og 76-78, samt ventilklaffen 97 danner bro over hele avstanden mellom bunnplaten 2 og overdelens 1 øvre vegg 4. Under transport kan dessuten den forreste del av kjøkkenventilatoren avstives ved at tilkoblingsstussen 86 utformes såvidt høy at den nøyaktig passer inn mellom bunnplaten 2 og filterkarets 89 bunn 89'. spokes 53 connected to an inner upright wall 54. The spokes are braced by two concentric circular ribs 55 and 56. The kitchen ventilator also forms a rigid, pressure-resistant unit by the fact that the fan housing's sheet band 41, the lamp housing's walls 70-72 and 76-78, as well as the valve flap 97 form bridge over the entire distance between the bottom plate 2 and the upper wall 4 of the upper part 1. During transport, the front part of the kitchen ventilator can also be stiffened by designing the connection spigot 86 high enough that it fits exactly between the bottom plate 2 and the bottom 89' of the filter vessel 89.

Claims

1. Kitchen ventilator with a housing comprising part one for mounting especially on the underside of an upper cabinet above one kitchen stove designed upper part (1) which is equipped with a radial fan (17, 19) with a vertical shaft and at least one exhaust opening (83, 84), partly a base plate (2) removably connected to the upper part (1), which kitchen fan has a an air intake opening (43) located on its underside (2) and preferably a grease capture filter (44) located in the path of the air flow between said opening (43) and the fan (17, 19), characterized in that the kitchen ventilator's air intake opening (43) is in a known manner. taken up in the bottom plate (2) below the fan (17, 19), that the air flowing from the fan is led into channels delimited by the bottom plate (2), the downwardly open upper part (1)'s mainly flat upper delimiting wall (4), as well as side walls (8 . (17, 19) included in the kitchen ventilator, e.g. lamps (29, 32) and lamp housing (69, 79), damper (97), operating device (33) and odor removal filter (90) are located laterally outside the fan housing (41) between the base plate (2) and the upper wall plane of the upper part (1) 4).

2. Ventilator according to claim 1, characterized in that all electrical components, such as electric motor (17, 18), lamps (29, 32) and operating device (33, 37) are arranged in the upper part (1) and that the bottom plate (2) is equipped, with the side walls (8, 41, 77, 78) which form the air channels.

3. Ventilator according to claim 1 or 2, characterized in that a grease capture filter (44) in the form of a thin filter unit is releasably attached to the bottom plate (2) and that the air from the grease filter is led directly into the radial fan's impeller (19) without connecting air ducts.

4. Ventilator according to et ay claims 1-3, characterized in that its front boundary is formed by a front cover (31 with upper side (91, side walls (10, 11) and front wall (12), which cover can be pushed from the front onto the upper part (1 ) with the bottom plate (2) in the working position and in the pushed-on position supports the bottom plate (2) by means of support members (14) which are located at the lower edge of its front and side walls (12, 10, 11).

5. Ventilator according to claim 4, characterized in that the front wall (12) of the front cover (3) has at least one opening (37'), through which maneuvering means (37) located in the upper part (1) can be influenced.

6. Ventilator according to one of claims 1-5 with. at least one downward-illuminating lamp (29, 32), characterized in that the lamp is placed in the upper part (1) and radiates downwards through a translucent part (72, 79) of the bottom plate. (2), which part is formed in one piece with substantially perpendicular walls (70 -72, 76-78), which bridge the distance to the upper wall (4) of the upper part (1) to form a lamp housing (69, 75 ).

7. Ventilator according to one of claims 1-6 with a holder (89) for an odor removal filter (90), characterized in that the holder is designed as an upwardly open filter vessel (89) provided with air flow openings that extends along the front edge of the upper part (1).

8. - Ventilator according to claims 4 and 7, characterized in that the upper side (9) of the front cover (3) is provided with air flow openings (91) at its part situated above the filter vessel (89) in the pushed position.

9.. Ventilator according to claim 7 or 8 with partly a first air duct (77, 82) which leads to a first release opening (83, 84) for evacuation air, partly another air duct (41, 78, 92) which leads to the tub ( 89) for the air removal filter (901, as well as partly a valve (97). in order to direct compressed air from the fan (17, 19) to the first and/or the second air channel, characterized in that the second air channel forms one between the filter vessel's (89) air chamber (92) located between the bottom (89') and the bottom plate (2) and that at least one unlocking opening (93) designed to create a downwardly directed screen air curtain is arranged in the bottom plate (2) up to its front edge.

10. Ventilator according to one of the claims 7-9, characterized in that the first air duct (8, 77, 82) extends along the rear side (7) of the housing to a first exhaust opening (83, 84) for evacuation air, that another air duct (41, 78, 92) extends along the outside of the fan housing (41) to the vessel (89) for the odor reduction filter (90), and that a valve (97) to direct compressed air from the fan (17, 19) to the first and /or the second air channel has a valve element in the form of a -swivelable valve flap (97) with a pivot axis directed mainly perpendicular to the base plate (2), the edge of the valve flap removed from the axis in a first position lies tightly against the fan housing wall (41) and thus blocks it second, but frees the first air duct, and in a second position rests tightly against a rear wall (8) standing perpendicularly from the bottom plate (2) and thus blocks the first, but frees the second air duct.

11. Ventilator according to claim 10, characterized in that the valve flap (97) has a fixedly connected handle directly accessible from the underside of the base plate (2) in the form of a turntable (101), which is rotatable and sealed in a seat (103 ) in an opening in the bottom plate (2, 79, 104), that the bottom plate (2, 79, 104) has a perpendicular upright channel wall section (98) which extends over the turntable (101) and adjoins this and the valve flap (97) , as well as preventing the turntable (101) from inadvertently leaving the seat (103) and that the seat (103) and the channel wall section (98) are designed in one piece with the lamp housing walls (76-78) and a part of the bottom plate (2, 79) made, translucent lamp housing window (79) for the formation of a releasably connected unit (75) with the remainder (2) of the base plate.

12. Ventilator according to claim 11, characterized in that the wall of the filter vessel (89) and the lamp housing wall (76) made of compliant material have mutually interacting hook members (96, 95) which carry the bottom plate (2) to the upper part (1).

13. Ventilator according to one of claims 1-12, characterized in that the exhaust opening (84, 83) intended for evacuation connection is designed as a hole arranged in the upper wall (4) or rear wall (7) of the upper part (1) 84, 83) without a connecting device and that a connection spigot (86, 85) is extendable from the inside of the upper part through the hole (84, 83) until a flange (88, 87) on the spigot rests against the wall (4, 7) which surrounds the hole, as the spigot (86, 85) is dimensioned in such a way that, in transport position, it is accommodated in the interior of the kitchen ventilator between the upper part (1) and upper wall (4) and the base plate (2). o