DK2613096T3

DK2613096T3 - Hood with four parallel filter plates

Info

Publication number: DK2613096T3
Application number: DK12008522.0T
Authority: DK
Inventors: Thomas Degelo
Original assignee: V-Zug Ag
Priority date: 2012-01-05
Filing date: 2012-12-21
Publication date: 2016-09-05
Also published as: EP2613096B1; EP2613096A1; CH703630A2; AU2013200049B2; CH703630B1; AU2013200049A1

Description

Field of the Invention

The invention relates to a rangehood for a domestic cooker having a hood for collecting fumes, a duct above the hood, a fan arranged in the duct, and a filter arrangement which is arranged in the duct, wherein the filter arrangement comprises a plurality of filter panels .

Background A rangehood of this type is described in EP 1 705 430. It includes a hood open at the bottom to collect the fumes rising from a cooktop. A duct, in which a fan and a filter arrangement are provided, is mounted on the hood. The filter arrangement includes a plurality of filter panels. A rangehood is shown in EP 2 375 173 Al, for which filter channels are closed alternatingly on the inlet side and on the outlet side.

In EP 1 563 889 Al a filtering separator for particle-contaminated gases is shown, comprising a block-type filter element.

Summary of the Invention

It is an object to provide a domestic rangehood of this type with improved filter efficiency. This objective is accomplished by the rangehood in accordance with claim 1.

Accordingly, the filter arrangement thus comprises at least one set of at least four spaced-apart, mutually parallel, vertical filter panels at the same height level. Between these filter panels there are formed at least one downwardly open inlet chamber and at least one upwardly open outlet chamber. The air sucked into the inlet chamber passes through one of the filter panels to reach the outlet chamber and continue from there to the fan.

Additionally, at least one further chamber is formed between said at least four vertical filter panels, which also preferably forms an upwardly open outlet chamber. In this case, there is provided advantageously an inlet chamber between the two outlet chambers. This has the advantage that air from the cooktop can also enter the outlet chambers from the outside through vertical filter panels.

Based on the same consideration, it is also advantageous if each input chamber is horizontally adjacent on all sides to at least one outlet chamber. The inlet chamber is located again at the centre, so that air can also pass from the cooktop through the outside of vertical filter panels into the output chamber(s).

According to the claims at least two sets of mutually parallel vertical filter panels are provided. The filter panels of the two sets are arranged at an angle to each other. In this way, at least nine chambers can be formed between the plates. Preferably, the plates of the two sets are arranged perpendicularly to one another, so as to form rectangular or square chambers. However, they may in principle also be arranged at an angle of 60° or 120° to each other, so as to form triangular or hexagonal chambers .

Brief Description of the Drawings

Further embodiments, advantages and applications of the invention can be found in the dependent claims and in the following description making reference to the figures, in which:

Fig. 1 shows a rangehood with a duct with partially cut walls,

Fig. 2 a first embodiment of a filter arrangement,

Fig. 3 a rotated view of the filter arrangement according to Fig. 2,

Fig. 4 a view of the filter assembly of Fig 2 from below,

Fig. 5 a schematic cross section through the filter assembly of Fig. 2,

Fig. 6 an exploded view of the filter arrangement according to Fig. 2,

Fig. 7 a side view of a second embodiment of a filter arrangement,

Fig. 8 a horizontal section through the filter arrangement along line A-A of Fig. 7,

Fig. 9 a vertical section through the filter assembly along line B-B of Fig. 7,

Fig. 10 a representation of the filter arrangement of Fig. 7 with partially disassembled filter panels, and

Fig. 11 a representation of the filter assembly of Fig. 7, wherein the bottom filter panels are shown completely disassembled.

Ways of Implementing the invention

Definitions :

The directions "down and "up" are defined by the direction of air flow in the filter arrangement, with the air flow passing through the filter arrangement from the bottom to the top. Accordingly, the hood is arranged below the duct.

The expressions "horizontal" and "vertical" are defined in the same manner. Accordingly, a filter panel is arranged vertically when it is oriented parallel to the longitudinal direction of the duct and horizontally when it is perpendicular thereto.

Fig. 1 shows a rangehood with a downwardly open hood 1, over which a duct 2 is mounted. In duct 2, there is provided a fan 3 as well as a filter arrangement 4. The fan 3 transports the air or the fumes from the hood 1 through the filter arrangement 4 and passes them through an outlet opening 5.

The rangehood can be an open rangehood, which re-emits air cleaned by the filter assembly 4 back into the room, or a vented rangehood that passes the clean air to an exhaust system through which it is extracted from the room and released for example into the open.

Fig. 2-6 show a first version of the filter arrangement 4. Its structure is described below.

Basically, the filter arrangement 4 has an upper and a lower section 4a, 4b, respectively. The two sections have essentially the same outside diameter. The upper section 4a forms a fan chamber 6 (Fig. 5, 6) , in which the fan 3 is arranged. The lower section 4b forms a filter area, in which most of the air is filtered.

In the lower section there are provided the above mentioned vertical filter panels 8, 9 which are all arranged at the same height level. In the embodiment shown, these filter panels form a first, inner module 10 of four inner filter panels 8 arranged perpendicular to each other, as well as an external module 11 of four outer filter panels 9 arranged perpendicular to each other (Fig. 6). The second module 11 surrounds the first module 10. Each module 10, 11 is formed by four mutually perpendicular filter panels 8, 9, respectively, and has a rec tangular, preferably square, cross-section. It is also conceivable that the modules are each formed from three or more than four filter panels and have for example triangular or hexagonal cross sections.

The first module 10 surrounds an inlet chamber 14 (see Fig. 4), which is open at the bottom, i.e. in direction of the hood 1, and closed from above by a lid 15 (see Fig. 5, 6) . The lid 15 can be rendered airtight or as a filter.

At least one outlet chamber 16 is formed between the filter panels 8 or 9 of the first and the second module (Fig. 5) . It is open at the top, i.e. in direction of the fan 3, but closed from below by a bottom 17. The bottom 17 can be airtight or designed as a filter .

As can be further seen in Fig. 5, the plates 8 or 9 are arranged at a distance from the wall 18 of the duct 2, so that between the wall 18 and plates a riser channel 19 is formed for the fumes from the hood 1.

The fan chamber 6 is arranged above the vertical filter panels 8, 9. At least one of the vertical walls of the fan chamber 6 is formed by a fan chamber filter panel 20. This is arranged spaced from the wall 19, so that the riser channel 19 continues upwardly along the outside of the filter panel 20 of the fan chamber.

An airtight wall section 22 forms at least one more vertical exterior wall of the fan chamber. This has the advantage that the wall in this area can be made thinner, leaving more space for the fan 3.

In operation, the extracted fumes enter from the hood into the inlet chamber 14, as illustrated in Fig. 5, from where they can pass via the vertical filter panel 8 of the first module into the outlet chamber 16. From the outlet chamber 16, the air rises upwards into the fan chamber 6 and thus to the fan 3. At the same time the air rises from the hood 1 also within the riser channel 19, from where it can either enter from the outside into the outlet chamber 16 or directly into the fan chamber 6 .

In the embodiment shown, a middle section 4c formed by four middle section filter panels 24 is located between the upper section 4a and the lower section 4b. Thus, the fan chamber 6 can be enlarged.

As shown particularly in Fig. 6, the filter panels 8, 9, 20, 24 are preferably made each from identical, preferably square, filter elements 25. In the embodiment shown, the filter panels 8 of the first module 10 have each one-third of the filter area of the filter panels 9 of the second module. Thus, the filter panels 9 can be built from three times the number of filter elements 25 than the filter panels 8 of the first module. In the present embodiment, the filter panel 8 of the first module 10 are each made of three filter elements 25 and the filter panels 9 of the second module 11 of nine.

For example, a frame 28 of profiled bars is provided for mounting the filter arrangement 4. The frame 28 is attached to the cap 29 of the duct 2 and is suspended within the duct 2. The outer filter panels 9, 20 and 24, which are adjacent to the riser channel 19, are mounted directly into the frame 28. To attach the first module 10 to the second module 11, braces 30 (Fig. 4, 6) are provided, which extend from the lower edge of the first module to the lower edge of the second module and are hooked there onto the frame 28.

Figs. 7-11 show a second embodiment of a rangehood, which differs primarily from the first embodiment in the way the filter panels are arranged and built.

The filter arrangement 4 has again an upper and a lower section 4a, 4b, respectively, which operate like those of the first embodiment.

In the embodiment as shown, a total of four sets of filter panels 9a - 9d, 9e - 9h, 9i - 91, 9m -9p are provided in the lower section. Two of these sets are referred to as "upper sets" and include a first upper filter set 9a - 9d, and a second upper filter set 9e -9h. The two remaining sets are referred to as "lower sets" and include a first lower filter set 9i - 91, as well as a second lower filter set 9m - 9p.

The filter panels of each individual set are parallel to each other and preferably arranged equidis-tantly. In the embodiment shown, each set includes four filter panels.

Regarding the upper filter sets 9a - 9h, the filter panels are arranged all at the same height level. In the embodiment shown, the filter panels of the two sets 9a - 9d and 9e - 9h are mounted perpendicularly to each other and intersect to form in the spaces between them nine rectangular chamber sections. The filter panels 9a - 9d have each slots 32 extending vertically from their top edge to the inside (i.e. downwards), whereas the filter panels 9e - 9h have each slots 32 extending vertically from the bottom to the inside (i.e. upwards). The respective width of the slots 32 is chosen to essentially match the thickness of the filter panels such that the filter panels of the two sets can be joined to cross each other in the area of the slots.

The two lower filter sets 9i - 9p are built in the same manner.

When stacked, the chamber sections, which are formed by the sets, become vertically aligned and form the inlet and outlet chambers 14, 16, respectively (Fig. 8), the structures of which are described in the following in more detail.

Above the two upper sets of filter panels, an upper panel 33 is provided having openings 34 near the outlet chambers 16, while being closed near the inlet chambers 14. Below the two lower sets of filter panels, a lower panel 35 is provided with openings 36 near the inlet chambers 14, while being closed near the outlet chambers 16.

In this way, four inlet chambers 14 open at the bottom and five outlet chambers 16 open to the top 16 are created.

All filter panels 9a - 9p are built identically and are interchangeable. In addition to the slots 32 already mentioned, they exhibit each interlocking steps 38 on their vertical lateral edges (Fig. 11).

The upper section 4a is essentially built like the one of the first embodiment. Again, the fan chamber 6 is enclosed on three vertical sides by fan chamber filter panels 20, while one exterior wall of the fan chamber is made of an airtight wall section 22.

The air flow in the second embodiment is similar to the first embodiment, with the air entering the outlet chambers 16 through the inlet chambers 14 or the riser channels 19 or directly into the fan chamber 6 through the fan chamber filter panels 20.

To attach the filter panels, guide means are provided in the area of the vertical edges of the filter arrangement. In the embodiment of Figs. 10 and 11 these are rods 40 which are fixed to the cap 29 of the duct 2 and suspended therefrom. Fastening means are provided at the bottom of the guide means, e.g. in the form of nuts 42 (Fig. 9) screwed to the rods 40.

The rods 4 0 can be replaced by corner profiles 43 mounted in the corners of the duct 1, as shown in Fig. 8 using dotted lines.

The filter panels and their filter elements, respectively, include preferably two spaced-apart, airtight covering layers, between which the actual filter material, in particular activated carbon, is arranged.

The lower section 4b of the filter arrangement can be adapted to the required specifications, or filter arrangement of different stages of expansion can be offered based on the same design. For example a simpler arrangement with smaller filter areas can replace the lower sections 4b. E.g, the lower two sets of filter panels of the embodiment of Figs. 7-11 can be eliminated and the lower panel 35 is mounted adjacent to the upper sets of filter panels, such that the inlet and outlet chambers are reduced to only half the height. In a further variant, the rangehood can be delivered even without the entire lower section 4b. In this case, the bottom of the fan chamber 6 is replaced by a horizontally arranged filter panel or cap.

In summary, it can be stated that the domestic rangehood has a filter arrangement which has at least one set of four spaced apart and mutually parallel vertical filter panels 9a - 9p arranged at the same height. Between the filter panels 9a - 9p at least one inlet chamber 14 open at the bottom and at least one outlet chamber 16 open at the top are formed. This increases the available surface area of the filter in a compact construction .

The number of parallel filter panels can be higher than four, e.g. six or eight, which increases the number of inlet and outlet chambers accordingly.

While in the present description preferred embodiments of the invention are described, it should be noted that the invention is not limited to those and can be implemented in other ways within the scope of the following claims.

Claims

1. Emhætte med en hætte (1) til opfangning af os, en skorsten (2) over hætten (1), en blæser, der er anbragt i skorstenen (2), og en filteranordning (4), der er anbragt i skorstenen (2), hvor filteranordningen (4) omfatter flere filterplader (8, 9a - 9p), hvor filteranordningen (4) omfatter mindst et sæt af fire vertikale filterplader (8, 9a - 9p) i samme højde, der er anbragt med afstand til hinanden og er parallelle med hinanden, og mellem hvilke der er dannet mindst et indgangskammer (14), der er åbent nedadtil, og mindst et udgangskammer (16), der er åbent opadtil, på en sådan måde at den luft, der suges ind i indgangskammeret, kommer gennem filterpladerne og på den måde havner i udgangskammeret, og hvor filterpladerne omfatter to dæklag, der er anbragt med afstand til hinanden og er luftgennemtrængelige, og mellem hvilke det egentlige filtermateriale er anbragt, kendetegnet ved, at der er tilvejebragt mindst to sæt vertikale filterplader (9a - 9p), der er parallelle med hinanden, hvor de to sæts filterplader (9a - 9p) er anbragt på tværs af hinanden.1. Hood with a hood (1) for capturing us, a chimney (2) over the hood (1), a fan disposed in the chimney (2), and a filter device (4) disposed in the chimney ( 2), wherein the filter device (4) comprises several filter plates (8, 9a - 9p), the filter device (4) comprising at least one set of four vertical filter plates (8, 9a - 9p) at the same height spaced apart and are parallel to each other, and between which at least one downwardly open inlet chamber (14) is formed and at least one upwardly open upwardly extending chamber (16) in such a way that the air sucked into the inlet chamber , through the filter plates and thus end up in the exit chamber, and wherein the filter plates comprise two cover layers which are spaced apart and air permeable and between which the actual filter material is arranged, characterized in that at least two sets of vertical are provided. filter plates (9a - 9p) which are parallel e with each other, where the filter sets (9a - 9p) of the two sets are arranged transversely.

2. Emhætte ifølge krav 1, hvor der mellem de parallelle, vertikale filterplader (8, 9a - 9p) dannes mindst to udgangskamre (16), der er åbne opadtil, hvor det mindst ene indgangskammer (14) er anbragt mellem udgangskamrene (16).A hood according to claim 1, wherein between the parallel vertical filter plates (8, 9a - 9p) at least two exit chambers (16) are opened upwardly, the at least one input chamber (14) being arranged between the output chambers (16) .

3. Emhætte ifølge et af de foregående krav, hvor hvert indgangskammer (14) horisontalt på alle sider grænser op til mindst et udgangskammer (16).A hood according to one of the preceding claims, wherein each input chamber (14) is horizontally adjacent to at least one output chamber (16) on all sides.

4. Emhætte ifølge krav 3, hvor det mindst ene indgangskammer (14) er omgivet af et første modul (10) af fire indvendige filterplader (8), der er anbragt vinkelret på hinanden, hvor det første modul (10) på sin side er omgivet af et andet modul (11) af fire udvendige filterplader (9), der er anbragt vinkelret på hinanden, og hvor der mellem det første og andet moduls (10, 11) filterplader er dannet mindst et udgangskammer (16).Hood according to claim 3, wherein the at least one input chamber (14) is surrounded by a first module (10) of four inner filter plates (8) arranged perpendicular to each other, the first module (10) being in its side surrounded by a second module (11) of four outer filter plates (9) arranged perpendicular to each other and at least one output chamber (16) being formed between the first and second module (10, 11).

5. Emhætte ifølge krav 4, hvor det første moduls (10) filterplader (8) omfatter en tredjedel af det andet moduls (11) filterpladers (9) filterareal.A hood according to claim 4, wherein the filter plates (8) of the first module (10) comprise one third of the filter area (9) filter area (9) filter area.

6. Emhætte ifølge et af kravene 4 eller 5, hvor der til fastgørelse af det første modul (10) på det andet modul (11) er tilvejebragt mindst en stiver (30), der strækker sig fra en underkant af det første modul (10) til en underkant af det andet modul (11).A hood according to any one of claims 4 or 5, wherein at least one strut (30) extending from a bottom edge of the first module (10) is provided for attaching the first module (10) to the second module (11). ) to a lower edge of the second module (11).

7. Emhætte ifølge et af de foregående krav, hvor de to sæt filterplader (9a -9p) er anbragt vinkelret på hinanden.Hood according to one of the preceding claims, wherein the two sets of filter plates (9a -9p) are arranged perpendicular to each other.

8. Emhætte ifølge et af de foregående krav, hvor filterpladerne (9a - 9p) omfatter udsparinger (32), der strækker sig vertikalt indad fra en øvre eller nedre kant, og ved hjælp af hvilke de er sat ind i hinanden.Hood according to one of the preceding claims, wherein the filter plates (9a - 9p) comprise recesses (32) extending vertically inwards from an upper or lower edge and by means of which they are inserted into each other.

9. Emhætte ifølge et af de foregående krav, hvor der over de to sæt filterplader (9a - 9p) er anbragt et øvre panel (33), hvor det øvre panel (33) har åbninger (34) i udgangskamrenes (16) område og er lukket i indgangskamrenes (14) område, og/eller hvor der under de to sæt filterplader (9a - 9p) er anbragt et nedre panel (35), hvor det nedre panel (35) har åbninger (36) i indgangskamrenes (14) område og er lukket i udgangskamrenes (16) område.Hood according to one of the preceding claims, wherein over the two sets of filter plates (9a - 9p) is arranged an upper panel (33), the upper panel (33) having openings (34) in the area of the output chambers (16) and is closed in the area of the input chambers (14) and / or where a lower panel (35) is provided below the two sets of filter plates (9a - 9p), the lower panel (35) having apertures (36) in the input chambers (14) area and is closed in the area of the exit chambers (16).

10. Emhætte ifølge et af de foregående krav, hvor der er tilvejebragt mindst to nedre og to øvre sæt (9a - 9h; 9i - 9p) filterplader, hvor de nedre sæt er anbragt under de øvre sæt, og hvor ind- og udgangskamrene (14, 16) strækker sig gennem de nedre og øvre sæt.A hood according to one of the preceding claims, wherein at least two lower and two upper sets (9a - 9h; 9i - 9p) are provided with filter plates, wherein the lower sets are located below the upper sets and wherein the input and output chambers ( 14, 16) extend through the lower and upper sets.

11. Emhætte ifølge et af de foregående krav, hvor filterpladerne (8, 9a - 9p) er anbragt med afstand til en væg (18) af skorstenen (2) på en sådan måde, at der mellem væggen (18) og filterpladerne (8, 9a - 9p) dannes en stigkanal (19) til os fra hætten (1).Hood according to one of the preceding claims, wherein the filter plates (8, 9a - 9p) are spaced apart to a wall (18) of the chimney (2) in such a way that between the wall (18) and the filter plates (8) , 9a - 9p) form a ladder channel (19) for us from the cap (1).

12. Emhætte ifølge et af de foregående krav, hvor der over de vertikale filterplader (8, 9a - 9p) er anbragt et blæserrum (6), som blæseren (3) befinder sig i, hvor mindst en vertikal ydervæg af blæserrummet (6) er dannet af en blæserrum-filterplade (20), som er anbragt med afstand til en væg (18) af skorstenen (2).Hood according to one of the preceding claims, wherein a fan compartment (6) is located above the vertical filter plates (8, 9a - 9p) in which the fan (3) is located, wherein at least one vertical outer wall of the fan compartment (6) is formed by a blower chamber filter plate (20) spaced apart from a wall (18) of the chimney (2).

13. Emhætte ifølge krav 12, hvor mindst en vertikal ydervæg af blæserrummet (6) er dannet af et luftuigennemtrængeligt vægafsnit (22).The hood of claim 12, wherein at least one vertical outer wall of the blower compartment (6) is formed by an air-impermeable wall section (22).

14. Emhætte ifølge et af de foregående krav, hvor der i området ved filteranordningens (4) vertikale kanter er anbragt føringsmidler (40, 43), hvori mindst en del af, især alle, filterpladerne (8, 9a - 9p) holdes højdeforskydeligt, og hvor der i en nedre ende af føringsmidlerne (40, 43) er tilvejebragt sikringsmidler (42) til at holde filterpladerne (8, 9a - 9p) i vertikal retning.Hood according to one of the preceding claims, wherein guide means (40, 43) are arranged in the region at the vertical edges of the filter device (4), in which at least part of, in particular all, the filter plates (8, 9a - 9p) are held height-adjustable, and wherein at a lower end of the guide means (40, 43), securing means (42) are provided for holding the filter plates (8, 9a - 9p) in a vertical direction.