DE102019103845A1 - Cleaning box for a cooking device and cooking device - Google Patents

Abstract

The invention relates to a cleaning box (22) for liquids coming from a cooking appliance (10), with a tub (30), a cover (32), a circulating pump chamber (58), which is used to hold a pump wheel (68) Circulation pump (66) is suitable, an emptying pump chamber (60), which is suitable for receiving an impeller (68) of an emptying pump (64), and an outlet chamber (76) that connects to the emptying pump chamber via a delivery line (82) (60) is connected, the pump chambers (58, 60), the drain chamber (76) and the delivery line (82) being formed by structures in the tub (30) and in the cover (32). The invention also relates to a cooking appliance with such a cleaning box.

Description

The invention relates to a cleaning box for liquids that originate from a cooking device, as well as a cooking device with such a cleaning box.

Liquids from the cooking space of the cooking appliance collect in the cleaning box (sometimes also referred to as a "collection box"). The cooking appliance is in particular a so-called combi steamer, that is to say a cooking appliance for professional areas of application, for example in restaurants, canteens and large-scale catering. With the cooking device, food can be cooked in hot air, superheated steam or a cooking space atmosphere with adjustable moisture content and adjustable temperature. In addition, a microwave generator can also be provided with which microwave radiation can be generated which supports the cooking process in the cooking appliance.

The liquids that collect in the cleaning box can be condensate that drips off the walls of the cooking space and / or foodstuffs and food trays in the cooking space, or washing liquor that is used in a cleaning process around the cooking space to remove residues from the cooking process. Water can also collect in the cleaning box, which is brought in to precipitate / condense steam from the cooking space.

Common to the usual cooking appliances is that the cleaning box and thus also the cooking appliance should meet a whole range of requirements. Apart from the usual requirements such as low manufacturing costs, ease of assembly, tightness and ease of repair, the cleaning box must also be able to manage the amount of water in the desired manner, i.e. to allow pumping or pumping out in the normal case and the water in an unscheduled operating state to lead to an emergency overflow. Furthermore, the cleaning box should make it possible to meet the requirements for drinking water safety.

The object of the invention is to create a cleaning box in which the desired functions are integrated as completely as possible.

To solve this problem, a cleaning box for liquids that come from a cooking device is created according to the invention, with a tub, a cover, a circulating pump chamber which is suitable for receiving an impeller of a circulating pump, an emptying pump chamber which is used to accommodate a pump impeller a drainage pump is suitable, and a drainage chamber which is connected to the drainage pump chamber via a delivery line, the pump chambers, the drainage chamber and the delivery line being formed by structures in the tub and in the cover. This cleaning box is characterized by a maximum integration of various functions in very few components, namely in particular in the tub and the lid.

The delivery line can in particular be formed in the cover so that the function of a riser can be realized at the same time.

According to one embodiment of the invention, a guide wall, which can be designed as a separate component, is arranged within the delivery line. This makes it easier to manufacture the lid using injection molding technology.

According to one embodiment of the invention, the guide wall defines a flushing slot through which water from the delivery line is sprayed into the tub. This water can be used to carry deposits in the tub to the drainage pump.

Starting from the emptying pump chamber, the delivery line runs in a curved manner towards the drainage chamber, an apex of the delivery line being above the level defined by the tub. This ensures that the evacuation pump chamber cannot run completely empty.

The emptying pump chamber and the circulating pump chamber are preferably arranged on one and the same side of the cleaning box, so that the two pumps can be electrically connected from one side. This makes assembly easier.

A drain pipe can be arranged between the emptying pump chamber and the circulating pump chamber, by means of which the pumped-off liquid is led to a sewage system. This arrangement of the pump chambers results in a compact design.

The bottom of the tub of the cleaning box is preferably inclined towards the side of the cleaning box on which the emptying pump chamber and the circulating pump chamber are arranged, so that a comparatively small volume of water remains in the collecting area when the pumps are in operation.

A collecting trough can extend along the edge of the trough on which the evacuation pump chamber and the circulation pump chamber are arranged, in which impurities collect, which are then pumped out of the collecting area by the evacuation pump.

The bottom of the trough is preferably inclined along the side on which the emptying pump chamber and the circulating pump chamber are arranged, the lower level being in the region of the emptying pump chamber. As a result, dirt particles automatically migrate away from the circulation pump to the drainage pump, so that they are removed.

According to one embodiment of the invention, each pump chamber is assigned a suction nozzle which is arranged on the inside of the tub and extends to just above the bottom of the tub. This makes it possible to pump down reliably down to a low water level in the collection area.

The drain pipe is preferably connected in one piece to the drain chamber, so that the assembly effort is minimized.

A grille can be arranged in the tub, which separates a suction opening of the circulating pump chamber from a suction opening of the evacuation pump chamber. An inlet opening for water into the collection area is arranged on the side of the grille on which the suction opening of the emptying pump chamber is also located. This prevents larger dirt particles from reaching the circulation pump.

An overflow wall, which defines a maximum level of liquid in the collection area, is preferably provided between the collecting area and the drainage chamber. The overflow edge formed in this way also serves as a grease trap and enables foam to be discharged from the collecting area to the drainage chamber.

According to one embodiment, a receptacle for a circulation pump and a receptacle for an emptying pump are provided, on which the pumps or their motors can be attached directly to the cleaning box, the receptacles being assigned bayonet structures that are used to fasten the pumps. The pumps can then simply be attached to the cleaning box and fixed there by turning a small angle.

The receptacles preferably differ from one another geometrically, so that incorrect assembly of the pumps is reduced.

The cleaning box can have an inlet for dripping water so that, for example, a collecting channel for dripping water can be connected from a door seal; Any dripping water is then automatically directed into the cleaning box.

The cleaning box can also be provided with an emergency emptying opening so that, in the event of maintenance, that water can be drained that cannot be pumped out of the cleaning box with the emptying pump or that is present in the cleaning box if the emptying pump is defective.

Furthermore, an inlet for cleaning chemicals can be provided, with which cleaning chemicals can be introduced directly into the cleaning box, so that a washing liquor is formed that can be introduced into the cooking space with the circulating pump.

• - 1 in einer schematischen Schnittansicht ein erfindungsgemäßes Gargerät mit Reinigungsbox;
• - 2 eine Rückansicht des Gargeräts von 1;
• - 3 eine teilgeschnittene Seitenansicht des Gargeräts von 1;
• - 4 die Reinigungsbox des Gargeräts der 1 bis 3 in einer perspektivischen Ansicht;
• - 5 die Reinigungsbox von 4 in einer Draufsicht, wobei der Einlaufstutzen und der Notüberlaufkanal nicht dargestellt sind;
• - 6 in einer perspektivischen Ansicht die Wanne der Reinigungsbox von 4;
• - 7 einen Schnitt durch die Reinigungsbox entlang der Ebene VII-VII von 5;
• - 8 einen Schnitt durch die Reinigungsbox entlang der Ebene VIII-VIII von 5;
• - 9 einen Schnitt entlang der Ebene IX-IX von 5;
• - 10 in einem Schnitt entlang der Ebene X-X von 5 ein Detail der Reinigungsbox;
• - 11 einen Schnitt entlang der Ebene Xl-Xl von 5;
• - 12 einen Schnitt entlang der Ebene XII-XII von 5;
• - 13 einen Schnitt entlang der Ebene XIII-XIII von 5;
• - 14 eine Detailansicht des Sammelbereichs der Reinigungsbox in einer perspektivischen Ansicht;
• - 15 eine Draufsicht auf den in 14 gezeigten Bereich;
• - 16 einen Schnitt entlang der Ebene XVI-XVI von 5, wobei der Schnitt zur Verdeutlichung der Überlauf-Funktion dient,
• - 17 eine mit 16 vergleichbare, jedoch leicht versetzte Schnittansicht, wobei der Schnitt zur Verdeutlichung einer Spülfunktion beim Abpumpen dient, und
• - die 18a bis 18d verschiedene Details der Verriegelung des Zulaufstutzens im Deckel der Reinigungsbox.

The invention is described below with reference to an embodiment which is shown in the accompanying drawings. In these show:

• - 1 in a schematic sectional view a cooking device according to the invention with a cleaning box;
• - 2 a rear view of the cooking appliance of 1 ;
• - 3 a partially sectioned side view of the cooking device of 1 ;
• - 4th the cleaning box of the cooking appliance 1 to 3 in a perspective view;
• - 5 the cleaning box from 4th in a plan view, wherein the inlet connection and the emergency overflow channel are not shown;
• - 6th in a perspective view the tub of the cleaning box from 4th ;
• - 7th a section through the cleaning box along the plane VII-VII of 5 ;
• - 8th a section through the cleaning box along the plane VIII-VIII of 5 ;
• - 9 a section along the plane IX-IX of 5 ;
• - 10 in a section along the plane XX from 5 a detail of the cleaning box;
• - 11 a section along the plane Xl-Xl of 5 ;
• - 12 a section along the plane XII-XII of 5 ;
• - 13th a section along the plane XIII-XIII of 5 ;
• - 14th a detailed view of the collecting area of the cleaning box in a perspective view;
• - 15th a top view of the in 14th area shown;
• - 16 a section along the plane XVI-XVI of 5 , whereby the section serves to illustrate the overflow function,
• - 17th one with 16 Comparable, but slightly offset sectional view, the section serving to illustrate a flushing function during pumping, and
• - the 18a to 18d various details of the locking of the inlet connection in the lid of the cleaning box.

In the 1 to 3 is schematically a cooking device 10 to see, only those components are shown here that are essential for understanding the invention.

The cooking device is a so-called combi steamer, in which food can be cooked in a cooking space by means of a cooking space atmosphere that can be controlled with regard to temperature, humidity and circulation speed. In particular, it is a cooking device for professional applications, for example in restaurants, canteens and large-scale catering.

From the cooking appliance 10 here is a so-called inner box 12 to see that surrounds the cooking space. In the cooking space there is also a fan wheel, shown schematically here 14th arranged.

The inner box 12 has a bottom 16 on, the one with a slope towards a drain opening 18th is executed. The drain opening 18th leads to a drainage channel 20th that is below the floor 16 is arranged and runs slightly obliquely.

There is a cleaning box at the deepest end of the drainage channel 22nd arranged over an inlet nozzle 24 with the drainage channel 20th is in flow connection. Liquids coming out of the drain hole 18th in the drainage channel 20th flow towards the cleaning box 22nd directed.

The slightly rising area of the drainage channel 20th that of inlet nozzle 24 viewed from beyond the drain opening 18th is used in particular to absorb, store and condense water vapor from the cooking space. A fresh water connection is required for this 26th at the top of the inlet nozzle 24 distant end of the drainage channel provided. At this point, in particular, a water mist can enter the drainage channel 20th be introduced.

At the top of the drainage channel 20th is also a vent pipe 28 connected.

The following is based on the 4th to 17th the cleaning box 22nd described in detail.

The cleaning box 22nd is an integrated component made of plastic that is a tub 30th (see in particular 6th ) and a lid 32 having. The lid 32 closes the tub 30th on their top.

For connection between the tub 30th and the lid 32 several snap-in connections are used, here through to the tub 30th provided latching hooks are formed in latching lugs on the cover 32 snap into place.

The lid 32 is with a circumferential groove 34 provided, in which a seal is arranged.

In the lid 32 is an inlet opening 35 provided, in which the above-mentioned inlet connection 24 is arranged.

The tub 30th is in a collecting area 36 and an emergency overflow area 38 divided by a partition 40 are separated from each other. The collection area 36 is used, usually during the operation of the cooking device in the cleaning box 22nd to absorb discharged amounts of liquid. The emergency overflow area 38 is used to absorb the amount of liquid that occurs during unplanned operating conditions and exceeds the volume flow from the collection area 36 can be recorded, and to lead to the emergency overflow channel.

The lid 32 engages with a landing strip 33 (see the 10 and 12 ) so far over the partition 40 that a level below the maximum level N of the water (see 7th ) is achieved in the collecting area. This creates a reliable seal between the collecting area 36 and the emergency overflow area 38 educated.

To check that the liquid is in the collection area 36 or the emergency overflow area 38 flows, is the inlet nozzle 24 graduated (see in particular the 4th , 7th and 18d ), in the inlet connection 24 a collective inlet channel 42 and an emergency overflow inlet channel 44 are integrated. The two inlet channels 42 , 44 are through a wall 46 separated from each other, which are above the level of the collecting inlet channel 42 extends upwards.

The inlet nozzle 24 is to the drainage channel 20th connected so that the collective inlet channel 42 flush with the bottom of the drainage channel 20th is arranged. The level of the emergency overflow inlet channel is located accordingly 44 above the bottom of the drainage channel 20th . As in particular in 1 can be seen here is the collective inlet channel 42 closer to the drain opening 18th arranged as the emergency overflow inlet channel 44 . Accordingly, liquid hits the drainage channel 20th towards the cleaning box 22nd is led, first to the collective inlet channel 42 . It is only when the latter cannot discharge the resulting volume of liquid that it accumulates in the drainage channel 20th to the extent that it is in the emergency overflow inlet channel 44 flows.

Both the collective inlet channel 42 as well as the emergency overflow inlet channel 44 are provided with a grille on the top to prevent the entry of coarse dirt particles. The mesh size of the grid is for the emergency overflow inlet channel 44 larger at the collective inlet channel 42 .

Due to the stepped design of the inlet connection 24 This also ensures that the waste water from the cooking space with the particles it contains (lime, fat, food residues) usually goes to the collection area 36 flows and not into the emergency overflow area 38 . This means that it remains free of deposits that could lead to blockages.

As in the 18a to 18b can be seen is the inlet connection 24 releasably locked on the lid 32 the cleaning box 22nd appropriate.

A spring clip is required for this 48 used that on the lid 32 is stored and behind the two locking projections 50 of the inlet connection 24 can snap into place. Around the inlet nozzle 24 again to loosen the spring clip 48 pushed in a little further (based on 18a so moved up) so that the two legs are slightly and the inlet connection 24 can be pulled out upwards.

In the area of the inlet opening 35 of the lid, through which the inlet nozzle extends 24 extends is a seal 52 provided that seals there. This is slightly above the maximum level N of the water level in the cleaning box 22nd .

From the collective inlet channel 42 the liquid gets into a tank 53 (see the ground 54 ) through a siphon edge 56 from the actual collection area 36 is separated. The siphon edge 56 lies above the lower level of the collecting inlet channel 42 so that a siphon is formed.

The one from the front tub 53 and the inlet connection 24 The siphon formed is used to prevent steam from escaping and the associated loss of energy from the cooking chamber into the sewage system. The siphon also offers temperature protection as there is no hot air from the cooking space into the collecting area 36 can flow.

The front tub 53 Is aerodynamically designed, in particular gently curved, so that deposits in the front tub and any dirt particles are flushed out by the inflowing liquid and into the collecting area 36 reach.

In the tub 30th Two pump chambers for pumps are also integrated, namely a circulation pump chamber 58 and an evacuation pump chamber 60 . These are each located above the intake port 62 with the collection area 36 in connection.

In the area of the circulation pump chamber 58 and the evacuation pump chamber 60 are reception structures 63 for a circulation pump 64 and a drain pump 66 intended. These are designed here as bayonet structures with which the pumps can be attached to the tub with little effort 30th can be locked. The receiving structures can also interact directly with the pump motors.

It is also provided that the receptacles differ geometrically from one another so that only the correct pump can be mounted on the corresponding receptacle. When the pump is installed, the corresponding pump wheel extends (see, for example, the pump wheel 68 the in 9 visible circulation pump 64 ) into the corresponding pump chamber.

The two pump chambers 58 , 60 are spaced from each other on a side wall of the tub 30th educated. On the one hand, the bottom of the tub is inclined towards the two pumps (see in 9 the slope of the bottom of the tub 30th ), and on the other hand, the floor is perpendicular to this at least in the area of a collecting channel 70 , from which the two intake ports 62 suction, inclined so that the collecting channel in the area of the drainage pump 66 is lower than in the area of the intake port for the circulation pump 64 (see also 12 ). This ensures that any dirt particles are in the area of the intake manifold 62 for the drain pump 66 and not in front of the circulation pump 64 .

To get rid of the pollution in the tub 30th To be able to measure the liquid present is a turbidity sensor 72 intended. This is assigned to the collective area. As in the embodiment shown, it is preferably arranged between the two pump chambers.

The turbidity sensor 72 is near the bottom of the collection area 36 and in particular near the bottom of the gutter 70 arranged in order to receive an evaluable signal even when the fill level is low.

Further holders for other sensors can also be provided on the tub, for example in order to detect the conductance or the temperature of the liquid in the tub or also the fill level.

One piece with the tub 30th is a drain pipe 74 executed. This is used to remove liquids from the cleaning box 22nd to lead to the sewage system.

The drain pipe 74 is to a drain chamber 76 connected by the collection area 36 through an overflow wall 78 is separated.

The overflow wall 78 defines an overflow edge (see also 16 ), through the liquid into the drainage chamber 76 flows when more liquid enters the collection area 36 is directed than this can grasp. The then overflowing liquid runs from the drainage chamber 76 into the drain pipe by itself 74 .

The one from the overflow wall 78 The defined overflow edge defines the level N of the maximum water level in the cleaning box 22nd .

The overflow edge of the overflow wall 78 also serves as a grease trap. When the collection area 36 is filled to the maximum, fats and cooking residues that float on the surface of the water are over the overflow edge into the drainage chamber 76 washed up, where they then passed through the drainpipe 74 be discharged. This becomes the gathering area 36 protected from contamination.

It is also used by the overflow wall 78 formed overflow edge for separating foam that can arise during cleaning. The foam is created by varying the delivery rate of the circulation pump 64 and the resulting changes in the water level in the collecting area during cleaning regularly against the lid 32 the cleaning box 22nd pressed and thereby over the overflow edge and into the drainage chamber 76 forced. Would the foam in the collecting area 36 remained, there would be a higher water consumption as the foam adheres strongly to the walls in the oven and more water is required to remove it. In addition, there is the risk that the foam will escape from the emergency overflow channel explained later due to the increase in volume associated with its formation 94 got outside.

The drain pump 66 serves to remove liquid from the collection area 36 towards the drain pipe 74 to pump. The drain pump pumps 66 the liquid from the pump chamber 60 via an exit 80 in a delivery line 82 that through one in the lid 32 molded channel is formed.

It can also be provided that an insert part in the area of the channel 84 on the lid 32 is attached, which forms a baffle. With the use of the separate insert part 84 can be the injection molding production of the lid 32 simplify.

The delivery line 82 is, as it initially extends upwards, designed as a riser. Specifically, it describes a 180 ° bend in the drainage chamber 76 ends. From there, the pumped-out liquid runs through the drain pipe 74 from.

Because the delivery line 82 inside the cleaning box 22nd is formed, a closed system is obtained that does not have to be sealed separately. In the event of a leak, the liquid remains inside the cleaning box 22nd .

The delivery line 82 is arranged so that a small part of the volume flow flowing through it through a flushing slot on the side of the overflow wall 78 exits, on which the collecting area 36 is located (see the arrows in 17th ). Because this part of the volume flow into the collection area 36 is guided to a point that is higher than the floor in the area of the intake port 62 the drain pump 66 , any particles deposited there mechanically become the intake manifold 62 conveyed by the drain pump.

Within the collection area 36 is a sieve 86 arranged, which acts as a filter or grid. It separates an area in which the front tub 53 and the one to the drain pump 66 belonging intake manifold 62 are arranged, of an area in which the circulation pump 64 belonging intake manifold 62 is arranged. The sieve 86 ensures that coarse dirt particles from the cooking space into the collecting area 36 not from the circulation pump 64 can be sucked in.

The circulation pump 64 serves to bring a wash liquor out of the collection area 36 pump into the cooking space in order to clean it. For this purpose, cleaning chemicals are supplied in a suitable manner by means of a metering device not shown here.

The circulation line to the cooking space is in the 2 and 3 with the reference symbols 90 designated.

Liquid flowing through the emergency overflow inlet channel 44 in the emergency overflow area 38 reaches, can from this through a compensation opening 92 in the partition 40 in the collection area 36 reach. From there this liquid is discharged in the usual way.

The level of the floor in the emergency overflow area 38 near the equalization opening 92 in the partition 40 is higher than the level of the floor in the adjacent collecting area 36 . This ensures that dirt particles do not enter the emergency overflow area 38 can get.

The top level of the compensation opening 92 is lower than the minimum liquid level in the collection area 36 (defined by the position of the intake manifold 62 ), so that a kind of siphon is formed here, which is the collecting area 36 from the emergency overflow area 38 separates.

On the lid 32 is an emergency overflow channel 94 attached, with a nozzle through an emergency overflow opening 95 in the lid 32 right into the emergency overflow area 38 extends.

The emergency overflow nozzle 96 and the emergency overflow channel 94 can be made in one piece and on the lid 32 be attached, or they can be designed as separate components, with the emergency overflow nozzle 96 integral with the lid 32 is executed and the emergency overflow channel 94 attached to the lid.

The emergency overflow nozzle 96 extends to below the level of the deepest water level in the collection area 36 so that a kind of siphon is formed with which the emergency overflow channel 94 on the internal volume of the tub 30th is separated.

As in particular in 11 can be seen, the cross-section of the emergency louise channel increases 94 immediately after the passage through the lid 32 . This means that a lot of water can be stored there. In addition, a separating distance is formed in which water droplets, which are carried away when pressure builds up, can separate from the air so that they do not come out of the opening of the emergency overflow channel 94 splash out and get into the vicinity of the cooking appliance.

Inside the emergency overflow channel 94 is still a drip edge 98 provided with which further liquid can be retained. As the bottom of the emergency overflow channel 94 towards the emergency overflow nozzle 96 is inclined, the liquid collected there can return to the emergency overflow area 38 be returned.

At the tub 30th an emergency emptying opening is provided, by means of which, in the event of maintenance, the liquid can be drained off which the drain pump 66 cannot be pumped out.

In the embodiment shown, an emergency emptying hose is attached to the emergency emptying opening 100 connected, which is closed at its free end with a plug or a clamp.

There is also an inlet 102 provided with the liquids in the cleaning box 22nd can be initiated elsewhere in the cooking appliance 10 be collected, for example in a drip edge below a door seal.

About the inlet 102 cleaning chemicals can also be added directly to the cleaning box.

Claims (22)

Cleaning box (22) for liquids that come from a cooking device (10), with a tub (30), a lid (32), a circulating pump chamber (58) which is used to hold a pump wheel (68) of a circulating pump (66) is suitable, an emptying pump chamber (60), which is suitable for receiving a pump wheel (68) of an emptying pump (64), and an outlet chamber (76) which is connected to the emptying pump chamber (60) via a delivery line (82) is, the pump chambers (58, 60), the drain chamber (76) and the delivery line (82) are formed by structures in the tub (30) and in the cover (32). Cleaning box (22) Claim 1 , characterized in that the delivery line (82) is formed in the cover (32). Cleaning box (22) Claim 1 or Claim 2 , characterized in that a guide wall (84) is arranged within the conveying line (82). Cleaning box (22) Claim 3 , characterized in that the baffle (84) defines a flushing slot through which water is sprayed from the delivery line (82) into the tub (30). Cleaning box (22) according to one of the preceding claims, characterized in that the delivery line (82) extends from the emptying pump chamber (60) in a curved manner towards the drainage chamber (76), with an apex of the delivery line (82) above that of the tub (30) defined levels. Cleaning box (22) according to one of the preceding claims, characterized in that the emptying pump chamber (60) and the Circulation pump chamber (58) are arranged on one and the same side of the cleaning box (22). Cleaning box (22) according to one of the preceding claims, characterized in that a drain pipe (74) is arranged between the emptying pump chamber (60) and the circulating pump chamber (58). Cleaning box (22) according to one of the preceding claims, characterized in that the bottom of the tub (30) is inclined towards the side of the cleaning box (22) on which the emptying pump chamber (60) and the circulating pump chamber (58) are arranged are. Cleaning box (22) according to one of the preceding claims, characterized in that a collecting channel (70) extends along the edge of the tub (30) on which the emptying pump chamber (60) and the circulating pump chamber (58) are arranged . Cleaning box (22) according to one of the preceding claims, characterized in that the bottom of the tub (30) is inclined along the side on which the emptying pump chamber (60) and the circulating pump chamber (58) are arranged, wherein the The lower level is in the area of the emptying pump chamber (60). Cleaning box (22) according to one of the preceding claims, characterized in that each pump chamber (58, 60) is assigned a suction nozzle (62) which is arranged on the inside of the tub (30) and extends to just above the bottom of the tub ( 30) extends. Cleaning box (22) according to one of the preceding claims, characterized in that the drainage chamber (76) is followed by a drainage pipe (74) made in one piece with the latter. Cleaning box (22) according to one of the preceding claims, characterized in that a grille (86) is arranged in the tub (30) which connects a suction opening (62) of the circulating pump chamber (58) from a suction opening (62) of the emptying Pump chamber (60) separates. Cleaning box (22) according to one of the preceding claims, characterized in that an overflow wall (78) is provided between the collecting area (36) and the drainage chamber (76). Cleaning box (22) according to one of the preceding claims, characterized in that a receptacle (63) for a circulation pump (66) and a receptacle for an emptying pump (64) are provided, on which the pumps (64, 66) are directly on the cleaning box (22) can be attached, with the receptacles (63) being assigned bayonet structures which are used to attach the pumps. Cleaning box (22) Claim 15 , characterized in that the receptacles (63) differ geometrically from one another. Cleaning box (22) according to one of the preceding claims, characterized in that an inlet (102) for dripping water is provided. Cleaning box (22) according to one of the preceding claims, characterized in that a holder for a turbidity sensor (72) is provided between the two pump chambers. Cleaning box (22) according to one of the preceding claims, characterized in that an emergency emptying opening (100) is provided. Cooking appliance (10) with a cleaning box (22) according to one of the preceding claims. Cooking appliance (10) Claim 20 , characterized in that a collecting channel for dripping water from a door seal is provided, the collecting channel being connected to the cleaning box (22). Cooking appliance (10) Claim 20 or Claim 21 , characterized in that an inlet (102) for cleaning chemicals is provided, with which cleaning chemicals can be introduced directly into the cleaning box.

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