GB2545993A - Cooking appliance - Google Patents
Cooking appliance Download PDFInfo
- Publication number
- GB2545993A GB2545993A GB1620212.9A GB201620212A GB2545993A GB 2545993 A GB2545993 A GB 2545993A GB 201620212 A GB201620212 A GB 201620212A GB 2545993 A GB2545993 A GB 2545993A
- Authority
- GB
- United Kingdom
- Prior art keywords
- water
- cooking appliance
- fresh water
- storage container
- water supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/14—Cooking-vessels for use in hotels, restaurants, or canteens
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/04—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C14/00—Stoves or ranges having self-cleaning provisions, e.g. continuous catalytic cleaning or electrostatic cleaning
- F24C14/005—Stoves or ranges having self-cleaning provisions, e.g. continuous catalytic cleaning or electrostatic cleaning using a cleaning liquid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/003—Details moisturising of air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/32—Arrangements of ducts for hot gases, e.g. in or around baking ovens
- F24C15/322—Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation
- F24C15/327—Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation with air moisturising
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/08—Arrangement or mounting of control or safety devices
- F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
- F24C7/085—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination on baking ovens
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Food Science & Technology (AREA)
- Cookers (AREA)
Abstract
A cooking appliance 10 is disclosed comprising a fresh water supply system 14 and a water storage container 18 into which the fresh water supply system 14 opens via a free outlet 16. Preferably a central overflow 32 for back-flooding water is provided in the region of the fresh water supply system. Water may be supplied to a module such as a steam generator or cleaning system of the cooking appliance. The cooking appliance may further include a pump 24, a sensor unit 30 for detecting the water level in the container and a valve 26 for regulating the fresh water supply. A control system 28 may detect when the cooking module requires water and control the pump accordingly. The cooking appliance may also include a central overflow 32 for backflooding water. The free outlet 16 is preferably situated a distance D from the upper edge of the water storage container 18, which is substantially twice as large as the diameter d of the fresh water supply system 14.
Description
Cooking appliance
The invention relates to a cooking appliance comprising a fresh water supply system.
The cooking appliances used in professional and industrial kitchens usually have a fresh water terminal arranged externally on the cooking appliance via which the cooking appliance can be supplied with fresh water. The cooking appliance accordingly comprises a fresh water supply system provided in the cooking appliance via which individual modules of the cooking appliance are supplied with fresh water, for example a steam generator or a cleaning system. For this purpose, a plurality of supply lines proceed from the central fresh water supply system and lead to the individual modules.
Usually, a check valve is provided in each of the supply lines, in such a way that the supply lines can be blocked. Further, the individual outlets of the supply lines have to be protected with a drinking water protection means, in such a way that water cannot be sucked back from the appliance into the drinking water network.
It has been found to be disadvantageous that the complexity of the protection is high, resulting in correspondingly high costs when the cooking appliances are manufactured.
The object of the invention is to provide a cooking appliance in which a drinking water protection means can be provided in a simple manner.
The object is achieved according to the invention by a cooking appliance comprising a fresh water supply system and a water storage container into which the fresh water supply system opens via a free outlet.
The basic idea of the invention is to form a central drinking water protection means in the cooking appliance in such a way that the outlets do not each have to be protected individually. A free outlet, such as is provided according to the invention, is recognised worldwide as the highest level of drinking water protection. Further, the water storage container may serve as a water reservoir by means of which gaps or fluctuations in supply in the fresh water supply can be covered. A free outlet means an outlet or discharge that is arranged at a particular distance from the highest possible water level in the water container, in other words above this level. This ensures that the water stored in the water container and any splash water cannot come into contact with the free outlet.
The water storage container is in particular a water storage container in which fresh water for passing on or for further processing is temporarily stored. The fresh water entering the water reservoir container is thus kept in reserve untreated in the water storage container, in particular for components of the cooking appliance which require fresh water. Accordingly, no cleaning agents or the like are introduced into the water storage container, since in this case the fresh water temporarily stored in the water storage container could only be used for cleaning.
One aspect of the invention provides a central overflow for backflooding water in the region of the fresh water supply. The central overflow ensures that backflooding water does not enter the fresh water supply system. The central overflow thus forms a central drinking water protection means of the cooking appliance in a simple manner.
In particular the water storage container forms the central overflow for the cooking appliance, in such a way that backflooding water can run off via the water storage container. Any backflooding water initially accumulates in the water storage container, and runs off via said container when the water storage container is completely full. Since the fresh water supply opens into the water storage container via a free outlet, backflooding water cannot enter the fresh water supply system or reach the fresh water terminal. It is thus ensured in a simple manner that backflooding water can run off out of the cooking appliance centrally and does not contaminate the fresh water supply in doing so. A further aspect provides that a valve is assigned to the fresh water supply system. The valve may be a balanced electrically or mechanically actuated valve. Via the valve, the fresh water supply into the water storage container via the fresh water supply system can be generally controlled or regulated.
Further, at least one supply line, via which at least one module of the cooking appliance is supplied with water, may proceed from the water storage container, a pump being provided in the supply line. Accordingly, the cooking appliance itself comprises a pump which passes the water, which is at least temporarily stored in the water storage container, to a corresponding module of the cooking appliance. The module which is supplied with the temporarily stored water may be a module of the cooking appliance which requires a water supply, for example a steam generator or a cleaning system. The pump provides a uniform water supply, by means of which a constant flow rate and/or a constant pressure can be made available. The fresh water supply is additionally independent of the installation terminal at the installation site of the cooking appliance. The pump may be formed as a suction pump which sucks the water out of the water storage container. A central pump may be provided, which is arranged in a central supply line from which a plurality of sub-lines lead to the corresponding modules. Alternatively, each module may be assigned to its own pump, in such a way that for example the delivery rate can be set accordingly for the associated assembly. This may alternatively also be controlled by a control system, which is accordingly connected to the pump. A further aspect provides that the cooking appliance comprises a sensor unit for detecting the water level in the water storage container. By way of the sensor unit, the valve assigned to the fresh water supply system can be controlled in such a way that as a function of the detected water level the water storage container is filled up with fresh water or the flow in the fresh water supply system is blocked. This ensures that there is always sufficient water in the water storage container so as to be able to cover any disruptions to the fresh water supply.
In an embodiment, the sensor unit may comprise a buoyancy body. The sensor unit is formed purely mechanically, it being possible for the buoyancy body to actuate the valve directly. Alternatively, it may be provided that the buoyancy body activates a switch via which the valve is controlled accordingly. In particular, for this purpose it may be provided that the switch generates a signal which is detected and converted accordingly by a control system of the cooking appliance.
Alternatively or additionally, the sensor unit may comprise an ultrasound or structure-borne sound sensor, by way of which it is possible to detect the water level in the water storage container. Further, the sensor unit may comprise an optical sensor and/or a weight sensor which also detect the amount of water in the water storage container. A further aspect provides that the cooking appliance comprises a control system which among other things is connected to the sensor unit and in particular controls the pump and/or the valve. The control system forms the central control or regulation unit of the cooking appliance, by way of which the fresh water supply into the water storage container via the fresh water supply system is controlled or regulated. Further, the control system controls or regulates the supply to the individual modules via the pump. The control system may adjust the power of the pump as a function of the module which requires a fresh water supply.
In particular, the distance of the free outlet from the edge of the water storage container is twice as large as the diameter of the fresh water supply. This provides that the amount of fresh water flowing through the fresh water supply system into the water storage container flows at a sufficiently large distance therefrom that the fresh water is not contaminated, even if the water storage container is already completely full and further fresh water is to be delivered.
Further advantages and characteristics of the invention may be derived from the following description and the drawings, to which reference is made and in which:
Fig. 1 is a schematic drawing of a cooking appliance according to the invention in accordance with a first embodiment, and
Fig. 2 is a schematic drawing of a cooking appliance according to the invention in accordance with a second embodiment.
Fig. 1 schematically shows a cooking appliance 10 which comprises an external fresh water terminal 12 via which the cooking appliance 10 can be supplied with fresh water. For this purpose, the fresh water terminal 12 is connected to an installation terminal (not shown) at the installation site.
The fresh water terminal 12 is in a flow connection with a fresh water supply system 14 arranged in the cooking appliance 10. The fresh water supply system 14 comprises, at the end thereof opposite the fresh water terminal 12, a free outlet 16 via which fresh water flowing through the fresh water supply system 14 can flow into a water storage container 18.
Among other things, the water storage container 18 serves as a water reservoir for the cooking appliance 10, inasmuch as the fresh water flowing from the fresh water supply system 14 into the water storage container 18 can be temporarily stored. As a result, it is possible to cover disruptions to the fresh water terminal 12 or the water supply in general at least temporarily. Therefore, a cooking or cleaning programme running in the cooking appliance 10 does not necessarily have to be interrupted if the fresh water supply via the installation terminal is interrupted. A central supply line 20 proceeds from the water storage container 18, and is in a flow connection with at least one module 22 via at least one sub-line 21. The module 22 may be a steam generator or a cleaning system of the cooking appliance 10 or some other module which needs to be supplied with fresh water.
Generally, a plurality of modules 22 may be provided, which are each in a flow connection with the supply line 20 via a sub-line 21.
The central supply line 20 and the sub-line 21 assigned to the module 22 in question are both supply lines via which fresh water is guided out of the water reservoir 18. A pump 24 is provided between the central supply line 20 and the at least one sub-line 21, and is formed as a suction pump in the embodiment shown. The pump 24 conveys the water temporarily stored in the water storage container 18 to the relevant module 22 via the central supply line 20 and the sub-line 21.
If a plurality of modules 22 provided with water are provided, correspondingly a plurality of sub-lines 21 may proceed from the pump 24, the number thereof being dependent on the number of modules 22. Alternatively, a plurality of pumps 24 may be arranged at the central supply line 20, each being assigned to one of the plurality of modules 22.
The pump 24 ensures that the fresh water supplied to the module 22 always has the desired flow rate, which is as constant as possible. In particular, as a result of the internal pump 24 the flow rate of the fresh water is independent of the connection conditions or the installation terminal at the installation site of the cooking appliance 10.
Further, the cooking appliance 10 comprises a valve 26 which is assigned to the fresh water supply system 14. Generally, the valve 26 serves to control or regulate the amount of fresh water flowing into the water storage container 18 via the fresh water supply system 14.
In the embodiment shown, the valve 26 is arranged within the fresh water supply system 14. The valve 26 may be arranged in the region of the free outlet 16 or in the vicinity of the fresh water terminal 12. Alternatively, the valve 26 may also be provided directly on the fresh water terminal 12.
In the embodiment shown, the valve 26 is coupled to a control system 28, which among other things is also connected to the pump 24. The control system 28 accordingly controls or regulates the valve 26 and the pump 24.
The control or regulation is carried out among other things by way of a signal conveyed to the control system 28 by a sensor unit 30. The sensor unit 30 detects the water level or amount of water in the water storage container 18 and transmits a corresponding signal to the control system 28. As a result, the control system 28 detects whether there is sufficient water in the water reservoir or water storage container 18. As a function of this, the control system 28 controls or regulates the valve 26 or the pump 24.
The sensor unit 30 in the embodiment shown may comprise an ultrasound sensor, a structure-borne sound sensor and/or an optical sensor. The sensor unit 30 is arranged in the cooking appliance 10 in such a way that the water level in the water storage container 18 can be reliably detected.
The control system 28 is additionally coupled to the module 22 in such a way that the control system 28 detects when the module 22 requires fresh water. For this purpose, the module 22 transmits a corresponding signal to the control system 28. Once a corresponding signal is received at the control system 28, the control system 28 controls the pump 24 in such a way that water is passed from the water storage container 18 to the module 22.
Alternatively or additionally, the control system 28 may comprise or be connected to a cooking process memory, in such a way that the fresh water requirements are transmitted directly to the control system 28.
Correspondingly, the at least one module 22 can be supplied reliably with fresh water. Further, the sensor unit 30 and the control of the valve 26 ensure that there is always a desired amount of fresh water temporarily stored in the water storage container 18.
If water is backflooding in the cooking appliance 10 as a result of a fault, in can flow off in a simple manner, since the cooking appliance 10 comprises a central overflow 32 for backflooding water.
The central overflow 32 is provided in the region of the fresh water supply system 14, ensuring that the fresh water supply system 14 is not contaminated with the backflooding water. Accordingly, the central overflow 32 simultaneously forms a central drinking water protection means 33 of the cooking appliance 10, in such a way that outlets of the supply lines 20, 21 do not have to be protected individually.
Generally, the central drinking water protection means 33 and the central overflow 32 are formed in that the water storage container 18 is not formed closed and the fresh water supply system 14 opens into the water storage container 18 via the free outlet 16.
The water storage container 18 accordingly comprises at least one unclosed side, and is thus formed cup-shaped. Via the unclosed side of the water storage container 18, the backflooding water can thus overflow and run off.
The free outlet 16 is at a correspondingly large distance D from the upper edge of the water storage container 18, which is substantially twice as large as the diameter d of the fresh water supply system 14. This distance is sufficiently large to ensure that the fresh water is not contaminated even if the water storage container 18 is completely full as a result of backflooding water and further fresh water is to be delivered.
Fig. 2 shows an alternative embodiment of the cooking appliance 10 in which the sensor unit 30 is formed purely mechanically.
For this purpose, the sensor unit 30 comprises a buoyancy body 34 which is pivotable about a bearing point 36. The buoyancy body 34 actuates the valve 26 mechanically, the buoyancy body 34 cooperating with a permanent magnet 38 which actuates the valve 26. In the embodiment shown, the valve 26 is formed as a balanced valve.
Once the water level in the water storage container 18 falls, the buoyancy body 34 moves towards the base of the water storage container 18, causing the permanent magnet 38 to be adjusted with respect to the valve 26 and to open it, in such a way that fresh water can flow into the water storage container 18 via the fresh water supply system 14.
Thereupon, the water level in the water storage container 18 rises, causing the buoyancy body 34 likewise to rise upwards and to adjust the permanent magnet 38 again with respect to the valve 26. The valve 26 is thus closed, in such a way that fresh water is no longer supplied to the water storage container 18 via the fresh water supply system 14.
In the embodiment shown a return spring 40 is assigned to the permanent magnet 38, and urges the permanent magnet 38 into an initial position.
Alternatively or additionally, a permanent magnet 42 may be arranged on the buoyancy body 34 itself, and cooperates with a magnetic switch 44, which in the embodiment shown is arranged below the water storage container 18. As a result, an electrically formed valve 26 can be switched if it is arranged in the fresh water supply system 14.
Once the water level falls to a particular level, the permanent magnet 42 switches the magnetic switch 44, whereupon the valve 26 is actuated directly into the open position or a signal is conveyed to the control system (not shown here), which correspondingly switches the valve 26.
Generally, a cooking appliance 10 is provided which can be manufactured cost- effectively, since not every individual outlet of the supply lines 20, 21 has to be protected.
Instead, a central drinking water protection means is formed by the central overflow 32, which is provided among other things by the free outlet 16.
Claims (9)
1. Cooking appliance (10) comprising a fresh water supply system (14) and a water storage container (18) into which the fresh water supply system (14) opens via a free outlet (16).
2. Cooking appliance (10) according to claim 1, characterised in that a central overflow (32) for backflooding water is provided in the region of the fresh water supply system (14).
3. Cooking appliance (10) according to claim 2, characterised in that the water reservoir container (18) forms the central overflow (32) for the cooking appliance (10), in such a way that backflooding water can run off via the water storage container (18).
4. Cooking appliance (10) according to any of the preceding claims, characterised in that a valve (26) is assigned to the fresh water supply system (14).
5. Cooking appliance (10) according to any of the preceding claims, characterised in that at least one supply line (20, 21), via which at least one module (22) of the cooking appliance (10) is supplied with water, proceeds from the water storage container (18), a pump (24) being provided in the supply line (20, 21).
6. Cooking appliance (10) according to any of the preceding claims, characterised in that a sensor unit (30) for detecting the water level in the water storage container (18) is provided.
7. Cooking appliance (10) according to claim 6, characterised in that the sensor unit (30) comprises a buoyancy body (34).
8. Cooking appliance (10) according to any of the preceding claims, characterised in that a control system (28) is provided, which among other things is connected to the sensor unit (30) and in particular controls the pump (24) and/or the valve (26).
9. Cooking appliance (10) according to any of the preceding claims, characterised in that the distance of the free outlet (16) from the edge of the water storage container (18) is twice as large as the diameter of the fresh water supply system.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015120807.5A DE102015120807A1 (en) | 2015-12-01 | 2015-12-01 | Cooking appliance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB201620212D0 GB201620212D0 (en) | 2017-01-11 |
| GB2545993A true GB2545993A (en) | 2017-07-05 |
Family
ID=58073481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1620212.9A Withdrawn GB2545993A (en) | 2015-12-01 | 2016-11-29 | Cooking appliance |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE102015120807A1 (en) |
| GB (1) | GB2545993A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4108967A1 (en) * | 1991-03-19 | 1992-09-24 | Schubert & Salzer Gmbh & Co In | System isolator, esp. for protecting drinking water systems against contamination - has float and float switch controlling delivery valve and pumps according to level of medium |
| DE4303656A1 (en) * | 1993-02-09 | 1994-08-11 | Imp Werke Gmbh & Co | Household steam cooker |
| JP2000184965A (en) * | 1998-12-21 | 2000-07-04 | Maruyasu Industries Co Ltd | Pot for boiling noodle |
| EP1314387A1 (en) * | 2001-11-27 | 2003-05-28 | Bernhard Rzemieniuk | Apparatus for preparing food by steam and/or hot air |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH698530B1 (en) * | 2005-02-15 | 2009-08-31 | Bsh Bosch Siemens Hausgeraete | A steamer. |
| DE202006003349U1 (en) * | 2006-03-01 | 2007-07-12 | Sinnotec Entwicklungsgesellschaft Ltd. | Cleaning system e.g. for cleaning agents inserted from outside system through equipment drip pan, has door, lockable chamber, exhaust fan, heater, and flowing chamber discharging into discharge box |
| DE102007005502A1 (en) * | 2007-01-30 | 2008-07-31 | Rational Ag | Method for cleaning of cooking device, particularly combi-steamer or steam cooker, involves feeding cleaning fluid, particularly under high pressure into inner space by circulating device, which is connected with fluid feeding device |
-
2015
- 2015-12-01 DE DE102015120807.5A patent/DE102015120807A1/en active Pending
-
2016
- 2016-11-29 GB GB1620212.9A patent/GB2545993A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4108967A1 (en) * | 1991-03-19 | 1992-09-24 | Schubert & Salzer Gmbh & Co In | System isolator, esp. for protecting drinking water systems against contamination - has float and float switch controlling delivery valve and pumps according to level of medium |
| DE4303656A1 (en) * | 1993-02-09 | 1994-08-11 | Imp Werke Gmbh & Co | Household steam cooker |
| JP2000184965A (en) * | 1998-12-21 | 2000-07-04 | Maruyasu Industries Co Ltd | Pot for boiling noodle |
| EP1314387A1 (en) * | 2001-11-27 | 2003-05-28 | Bernhard Rzemieniuk | Apparatus for preparing food by steam and/or hot air |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201620212D0 (en) | 2017-01-11 |
| DE102015120807A1 (en) | 2017-06-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |