DE102016109136A1 - Front cooking station - Google Patents

Abstract

The invention relates to a front cooking station (10) comprising: - a food preparation area (12), - an air cleaning device comprising: - a channel system having at least one suction opening (14, 16) for sucking vapor contaminated by the food preparation Air and at least one exhaust port (18, 20) for discharging sucked and purified by the air cleaner in the surrounding area (22) of the front cooking station (10), - at least one fan (24, 26), the air from the at least one suction opening (14, 16) to the at least one exhaust air opening (18, 20) promotes, - at least one grease (28, 30) and / or odor filter (32, 34) arranged in the channel system, a sensor arrangement with at least one pressure sensor (106, 108), which with respect to the air flow direction, the pressure in front of the at least one grease (28, 30) and / or odor filter (32, 34) detect and report. It is provided according to the invention that it has a control device (114) for controlling at least the air-cleaning device, that the control device (114) detects a missing, defective and / or incorrectly installed grease filter (28, 30) and / or odor filter (32, FIG. 34) closes when the pressure sensor (106, 108) delivers a value that is below a predetermined pressure threshold, and / or when a difference between the value provided by the pressure sensor (106, 108) and another pressure value is less than predetermined pressure difference threshold value, and that the control device (114) stops the operation of the at least one blower (24, 26) after being tested for a missing, defective and / or incorrectly installed grease (28, 30) and / or odor filter ( 32, 34) has closed.

Description

The invention relates to a front cooking station with a food preparation area and with an air cleaning device. The air cleaning device comprises: a duct system having at least one suction port for sucking air contaminated with vapor by the food preparation and at least one exhaust port of sucked air cleaned by the air cleaner into the surrounding area of the front cooking station, a fan containing the air from the at least one suction opening to the at least one exhaust air opening, at least one grease and / or odor filter arranged in the channel system, and a sensor arrangement having at least one pressure sensor related to the air flow direction, the pressure before the at least one grease and / or odor filter capture and report.

Such a front cooking station is for example from the US 5,133,786 A known. According to the teaching of this document, the exhaust opening is provided in the bottom of an exhaust box, wherein the exhaust box is connected downstream of the blower. The exhaust port is covered with a stack of multiple filter mats forming an odor filter. Within the exhaust box, a pressure sensor is provided to detect the pressure in the exhaust box and to close at too high pressure on an overly added odor filter. Too much added odor filter is then signaled to the user by a corresponding warning light.

Starting from the US 5,133,786 A The object of the invention is to be able to recognize not only an over-added filter, but also a missing, defective and / or incorrectly installed filter.

This object is achieved with the features of claim 1.

According to the invention, the front cooking station has a control device for controlling at least the air cleaning device, that the control device closes on a missing, defective and / or incorrectly installed grease and / or odor filter when the pressure sensor delivers a value that is below a predetermined pressure threshold, and / or when a difference between the value supplied by the pressure sensor and another pressure value is less than a predetermined pressure difference threshold, and that the control means prohibits the operation of the at least one fan after being applied to one missing, defective and / or incorrectly installed grease and / or odor filter has closed. Thus, the benefit of a possibly existing anyway pressure sensor can be significantly increased. Without being limited to this, the monitoring of an odor filter arranged in an exhaust box is particularly appropriate because the pressures prevailing in such an exhaust box during trouble-free operation are known or easily detectable.

In this connection, a further development of the front cooking station according to the invention provides that the sensor arrangement has at least one further pressure sensor which can detect and report the pressure behind the at least one fat and / or odor filter in relation to the air flow direction, the pressure difference being the pressure in front of and behind the at least one fat and / or odor filter is formed. For example, in the case of an odor filter, the pressure within an odor filter receiving exhaust box with the pressure in the vicinity of the front cooking station can be compared so that changes in ambient pressure can be considered, which is a particularly accurate monitoring option.

According to another embodiment of the invention, it is provided that the sensor arrangement has at least one position sensor which can detect and report the correct mounting position of the at least one fat and / or odor filter, wherein the control device prevents the operation of the at least one fan when the at least one Position sensor reports that the at least one grease and / or odor filter is not installed correctly. For example, a wrong built-in grease filter can cause excessive fat in the channel system reflected, which is undesirable for both hygienic and fire safety reasons and what can be prevented by this measure.

In this connection, it is considered particularly advantageous that the sensor arrangement has further position sensors which can detect and report the correct mounting positions of all parts of the front cooking station whose position must be changed to remove the at least one fat and / or odor filter , It can not be ruled out that, although the filter itself is correctly inserted, the incorrect (re) installation of other parts leads to the fact that proper operation of the front cooking station is still not possible.

Similarly, it is preferred for the front cooking station according to the invention that it has at least one inspection door and that the sensor arrangement has at least one closure sensor which can detect and report a correct closure of the at least one inspection door, wherein the control device controls the operation of the prevents at least one fan when the at least one closure sensor reports that the at least one inspection door is not closed correctly. For example, non-closed inspection doors can cause the intake air to escape from the front cooking station without having passed the odor filter. This state can be avoided if the control device permits operation of the at least one blower only if all the inspection doors are correctly closed.

According to a further basic idea of the invention, it is provided that the front cooking station has an extinguishing device with at least one extinguishing agent nozzle and with at least one temperature sensor for detecting overheating and / or a fire. A fire can occur, for example, when the flames of food flames are sucked into a provided adjacent to the suction fat filter and set the very easily flammable fat deposits on fire.

In this connection, it is preferred that the front cooking station has a first holder for an extinguishing agent tank and a piping system, which leads from the region in which the first holder is provided to the at least one extinguishing agent nozzle. In this way, the front cooking station can be equipped with a self-sufficient extinguishing agent tank and it is not necessary to connect at the respective operating location of the mobile front-cooking station any extinguishing agent sources, as for example in the CN 102062430 A is proposed.

In preferred embodiments of the front cooking station according to the invention, provision is made for the first holder to be provided in a region which is protected by a flame arrester both with respect to the food preparation region and with respect to the channel system. Under flame arresting in this context are less known from the classical explosion protection measures, but it is sufficient to provide the first holder and thus the extinguishing agent tank in a range which is sufficiently sealed off against potential fire sources, for example by flame retardant material such as sheets or similar.

It is considered particularly advantageous in this connection that the flame arrester is formed by a separate compartment. A separate compartment here means any compartment which is not part of fire-prone sections of the front cooking station, because, for example, a compartment belonging to the channel system would be unsuitable for providing the first holder.

It is preferred that the separate compartment is a compartment closed in the operating state of the front cooking station. For example, a compartment formed from sheet metal walls constitutes a sufficient flame arrester.

Furthermore, it is preferred in this context that the separate compartment is provided in an outer side area of the front cooking station. If the compartment is located in a side area of the front cooking station, a closed inspection opening of the compartment may form part of the side wall of the front cooking station, so that the compartment is readily accessible, for example, to exchange the extinguishing agent tank. In addition, the compartment and thus the contained therein extinguishing agent tank in this arrangement has the maximum possible distance from potential fire sources.

With regard to the arrangement of the extinguishing agent nozzles, it is preferred that at least one extinguishing agent nozzle is assigned to the food preparation area. The spray angle of the extinguishing agent nozzle or the extinguishing agent nozzles is preferably selected so that the entire food preparation area is covered.

Furthermore, it is preferred in this context that at least one extinguishing agent nozzle is assigned to the at least one fan. This solution is advantageous because ultimately each electric motor represents a potential source of fire, so that it can happen in a very unlikely, but not completely excluded case that the fan catches fire due to overheating.

Moreover, in connection with the arrangement of the extinguishing agent nozzles, it is considered particularly advantageous that at least one extinguishing agent nozzle is assigned to the at least one grease filter. This measure is advantageous because it may occur, for example, in the case of short-term flame beers of food, that flames are sucked through the fat filters and ignite these or the fat deposited thereon.

Finally, in connection with the arrangement of the extinguishing agent nozzles, it is considered advantageous that at least one extinguishing agent nozzle is assigned to the at least one odor filter. This measure makes sense because, for example, a fan fire can lead to the odor filter, which is usually arranged behind the blower, being set on fire.

According to a particularly preferred development of the front cooking station according to the invention, it is provided that the at least one exhaust air opening is equipped with a closure device. By this measure, the at least one exhaust port in case of fire in the channel system of the front cooking station can be closed, so that it can be ruled out that flames from the at least one exhaust port and in the worst case to a spread of fire in the surrounding area of the front -Cooking station lead.

In this context, it is conceivable, for example, that the closure device comprises a grid with lamellae, which can be brought into a closed position by a drive device. The lamellae are preferably rotatably mounted about their longitudinal axis. The actuation or rotation of the slats can then be effected by a drive device in the form of a cylinder, which is acted upon if necessary with a propellant gas.

The security can be further increased by the fact that the extinguishing device automatically activates the closure device in the event of overheating and / or fire in order to close the at least one exhaust air opening. For example, it is conceivable for the cylinder or cylinders of the drive device to be charged automatically with a propellant gas when the at least one temperature sensor detects overheating and / or a fire.

According to a further advantageous embodiment of the invention, it is provided that the extinguishing device comprises a manual actuating device with which the extinguishing device can be actuated independently of the fact that the at least one temperature sensor detects overheating and / or fire. By this measure, the extinguishing device can be operated, for example, even if the front cooking station is not yet connected to the mains, which will be necessary for the proper operation of the at least one temperature sensor, and still for some reason to a fire in the Front cooking station area comes, for example, because a vessel with burning fat on the front cooking station is turned off.

At least in some cases, it is considered advantageous for the front cooking station of the invention to include a second holder for an extinguishing agent propellant tank. If the extinguishing agent and the propellant are stored in different tanks, it is for example possible to remove the usually smaller propellant tank with a longer transport of the front cooking station and to transport separately. Furthermore, the extinguishing agent and the propellant in the form of, for example, propellant gas can be durable for different lengths of time or the tanks can be subject to different testing intervals, so that it is less expensive to renew only the agent currently being exchanged.

It is considered particularly advantageous for all embodiments if it is provided that the control device is designed to report a missing, defective and / or incorrectly installed grease and / or odor filter (or another incorrectly installed element) to a service center. In this case, the service center can be, for example, a data center of the distributor of the front cooking station or a cooperating organization that can be reached via the Internet. In any case, it enables selected third parties to initiate appropriate support measures in case of failure. The message can be done for example via a telephone and / or Internet connection.

An embodiment of the invention will be explained by way of example with reference to the accompanying drawings.

Show it:

1 a perspective view of an embodiment of the front cooking station according to the invention;

2 a perspective view of the front cooking station of 1 with removed doors;

3 a front view of the front cooking station of 1 ;

4 a front view of the front cooking station of 1 with removed doors;

5 a view of the right side of the front cooking station of 1 ;

6 a view of the right side of the front cooking station of 1 with removed side door;

7 a view of the left side of the front cooking station of 1 ;

8th a view of the left side of the front cooking station of 1 with removed side door;

9 a perspective view of the front cooking station of 1 partially cut;

10 the detail B of 9 ;

11 a perspective view of the upside-down front cooking station of 1 ; and

12 the detail A of 11 ,

Because the 1 to 12 show the same embodiment of the front cooking station according to the invention, these will be described together below. It should be noted that not in all figures, all elements are provided with reference numerals but only the well recognizable elements.

The illustrated front cooking station 10 has a food preparation area 12 which is intended to be equipped with suitable thermal devices, for example with hobs, griddles, fryers, woks or pasta cookers and corresponding combinations. Although in principle gas-powered thermal devices come into question, electrically operated thermal devices are preferred. A rich selection of suitable devices, for example, the product group with the name "Varithek" the company Rieber GmbH & Co. KG available.

The front cooking station 10 comprises an air cleaning device, which in the illustrated case comprises two channel systems, namely a left channel system and a right channel system. The left channel system leads from a left above the food preparation area 12 located first intake port 14 to a first exhaust port 18 in the bottom of the front cooking station 10 , The left channel system forms a first exhaust box with a relatively large volume, in the bottom of the first exhaust port 18 is provided. In the case shown, the first exhaust port 18 significantly larger than the first suction port 14 , which has the consequence that the outflow velocity of the first exhaust port 18 Exiting air significantly lower than the inflow velocity into the first intake port 14 is. This is advantageous because high exit velocities provide comfort to those in the surrounding area 22 the front cooking station 10 stop, impair. In addition, too quickly from the exhaust port 18 escaping air cause, for example, dust in the surrounding area 22 the front cooking station 10 is whirled up and possibly gets into the food.

The right channel system leads practically identical reference meadow mirror-symmetrically from a second suction port 16 , which is right above the food preparation area 12 is provided, to a second exhaust port 20 standing in the bottom of the front cooking station 10 or a right exhaust duct formed by the right channel system is provided. About the intake openings 14 . 16 is sucked by the food preparation with air contaminated air, then cleaned and returned to the surrounding area 22 the front cooking station 10 to be led.

To get the air from the intake ports 14 . 16 to the exhaust air openings 18 . 20 to promote, in the case illustrated, a first blower 24 and a second blower 26 intended. The left or first blower 24 is upstream of the left exhaust box and thus arranged in the duct system, as shown in the 2 and 4 can be seen, in which the duct system is shown partially cut in the blower area. The second or right blower 26 is installed in the right channel system accordingly.

In the left channel system is a first fat filter 28 provided, while in the right channel system, a second grease filter 30 is installed, but not visible in the figures and therefore only indicated schematically. The grease filters 28 . 30 are immediately behind the intake openings 14 . 16 arranged so that only the smallest possible part of the channel systems is contaminated by grease.

The two exhaust openings 18 . 20 are with odor filters 32 . 34 covered, which may be, for example, activated carbon filter.

The fact that in the case shown, a left channel system and a right channel system, each with its own blower 24 . 26 are provided, is due to the fact that the illustrated front cooking station 10 a very wide front cooking station is, for example, three thermal appliances 132 . 134 . 136 (in 3 indicated). In particular, in cases where it is a less wide front cooking station, such as a front cooking station, which can accommodate only one or two thermal devices, it is often sufficient to provide only one duct system with only one fan ,

The illustrated front cooking station 10 has a quenching device containing a plurality of extinguishing agent nozzles 36 to 54 and a variety of temperature sensors 56 to 74 for detecting overheating and / or fire. The temperature sensors can at least in some cases be structurally combined with the extinguishing agent nozzles. But it is also conceivable to provide at least some of the temperature sensors independent of any extinguishing agent nozzles. In the case shown are in the food preparation area 12 four extinguishing agent nozzles 36 to 42 assigned. Adjacent to these extinguishing agent nozzles, a temperature sensor is provided in each case, so that above the food preparation area 12 also four temperature sensors 56 to 62 are provided.

Each of the blowers 24 . 26 is a extinguishing agent nozzle 48 respectively 50 associated with, including two corresponding temperature sensors 68 and 70 are provided to overheating or fires in the range of blowers 24 . 26 to be able to detect.

Also, each of the fat filters 28 . 30 an extinguishing agent nozzle 44 respectively 46 and a temperature sensor 64 respectively 66 assigned, for example, by the grease filter 28 . 30 to detect sucked flames.

Finally, it is also in the field of odor filters 32 and 34 one extinguishing agent nozzle each 52 . 54 and a temperature sensor 72 . 74 intended.

In one on the right side of the front cooking station 10 provided, closed in normal operation compartment 88 is a first holder 76 for an extinguishing agent tank 78 intended. The extinguishing agent tank 78 may for example contain a powdered extinguishing agent, although of course, liquid or foam-like extinguishing agents are basically possible. The normal operation of the front cooking station 10 closed compartment 88 has a top 84 and a left sidewall 86 on, which fulfill the function of a flame arrester. The provision of such a flame arrester is also advantageous in cases where the first holder 76 not in a separate compartment 88 is arranged.

In the case illustrated, a piping system leads only parts, namely a section 80 in 6 and a section 82 in 8th are shown by the extinguishing agent tank 78 to the variety of extinguishing agent nozzles 36 to 54 ,

In the subject 88 is a second bracket 102 for an extinguishant propellant tank 104 intended. The propellant may be, for example, pressurized nitrogen, which may be used as needed in the extinguishing agent tank 78 contained powders from the extinguishing agent nozzles 36 to 54 to let out.

The extinguishing device can also be operated manually, via a manual actuator 100 , which may be formed purely mechanically, for example, that when pulling out a handle mechanically coupled to this valve of the propellant tank 104 is opened.

The illustrated front cooking station 10 has a closure device 90 on, with the two exhaust vents 18 . 20 can be closed in the event of a fire. For this purpose, the closure device in each case comprises a grid with slats rotatable about its longitudinal axis 92 . 94 , Each exhaust air opening 18 . 20 is a drive device 96 . 98 assigned to the slats 92 . 94 If necessary, turn so that the exhaust vents 18 . 20 getting closed. In this way it can be safely avoided that in the event of a fire flames from the exhaust vents 18 . 20 beat. Also, the influx of a fire-igniting oxygen is prevented or at least reduced.

The illustrated front cooking station 10 has a sensor arrangement comprising a first pressure sensor 106 , a second pressure sensor 108 , a third pressure sensor 110 , a fourth pressure sensor 112 , a first position sensor 116 , a second position sensor 118 , a third position sensor 120 , a fourth position sensor 122 , a first closure sensor 128 and a second closure sensor 130 includes. These sensors are connected to a control device 114 connected to the operation of at least the blower 24 . 26 , but preferably at least controls and / or regulates the entire air cleaning device.

In the case shown, the first pressure sensor in the left exhaust box and thus in relation to the flow direction in front of the first odor filter 32 arranged while the second pressure sensor 108 in a similar way the second odor filter 34 upstream. A third pressure sensor 110 Measures in the case illustrated, the ambient pressure in the region of the first exhaust port 18 while a fourth pressure sensor 112 the ambient pressure in the region of the second exhaust port 20 detected. As a rule, the ambient pressure in the area of the two exhaust air openings should be 18 . 20 be at least nearly identical, so that optionally on one of the pressure sensors 110 . 112 can be waived. About the pressure sensors 106 to 112 can be determined if the odor filter 32 . 34 are installed correctly and work as expected. For missing, defective and / or incorrectly installed odor filters 32 . 34 cause the pressure in the exhaust boxes to be lower than expected. For correctly working odor filters 32 . 34 results after a short start-up time of the fan 24 . 26 a pressure difference between the higher pressures in the exhaust boxes and the ambient pressure. If this pressure difference is smaller than expected, it can be assumed that the corresponding odor filter 32 . 34 not working correctly. In addition, upstream of the respective filters Pressure sensors are also used to detect added filters, because then results in a higher pressure than in the normal state.

In the illustrated embodiment of the front cooking station according to the invention 10 It is further provided that the correct installation position of all parts that are necessary to remove the grease filter 28 . 30 be mined or at least moved, is monitored. For this purpose, the first grease filter 28 a first position sensor 116 assigned, which may be, for example, a magnetic switch. The grease filter 28 can then wear a magnet that only with correctly inserted grease filter 28 This causes the first position sensor 116 in the form of the magnetic switch provides a positive signal.

In the same way, the second grease filter 30 a second position sensor 118 be assigned. The third position sensor 120 and the fourth position sensor 122 In the case shown serve to correct the position of the grease filters 28 . 30 detect laterally shielding sheets, wherein in 9 at least to recognize that there is missing the left sheet to the grease filter 28 to be able to take out.

At the illustrated front cooking station 10 is the left exhaust box with a first inspection door 124 closed, while the right exhaust box with a second inspection door 126 is closed. These inspection doors 124 . 126 can either be opened or removed, for example, the odor filter 32 . 34 to be able to remove. The first inspection door 124 is a first closure sensor 128 assigned during the second inspection door 126 a second closure sensor 130 assigned. Also with the closure sensors 128 . 130 it may be, for example, magnetic switch.

The control device 114 Leaves a permanent operation of the blower 24 . 26 only if all elements are correctly installed and working as expected. Under continuous operation of the blower 24 . 26 In this context it is understood that it is necessary to check the odor filter 32 . 34 by means of pressure monitoring or pressure difference formation is required, the blower 24 . 26 at least to let run until the expected pressure or the expected pressure difference should have built up under normal circumstances.

In all embodiments, it may be provided that the control device 114 is designed to report a missing, defective and / or improperly installed grease and / or odor filter (or other improperly installed element) to a service center. In this case, the service center can be, for example, a data center of the distributor of the front cooking station or a cooperating organization that can be reached via the Internet. In any case, it enables selected third parties to initiate appropriate support measures in case of failure. The message can be done for example via a telephone and / or Internet connection. For this purpose, the front-cooking station 10 For example, be equipped with a wireless interface.

Although in the case illustrated two fans and two separate duct systems are provided, this need not necessarily be the case, as mentioned, but solutions may well be considered in which only one duct system and only one blower are used.

The features of the invention disclosed in the foregoing description, in the drawings and in the claims may be essential to the realization of the invention both individually and in any combination.

LIST OF REFERENCE NUMBERS

10

 Front cooking station

12

 Food preparation area

14

 First intake opening

16

 Second suction opening

18

 First exhaust opening

20

 Second exhaust opening

22

 surrounding area

24

 First blower

26

 Second blower

28

 First grease filter

30

 Second grease filter

32

 First odor filter

34

 Second odor filter

36-54

 Extinguishing nozzles

56-74

 temperature sensors

76

 First bracket

78

 The extinguisher

80, 82

 Piping

84, 86

 Flame arrester

88

 subject

90

 closure device

92

 First lamellae

94

 Second slats

96

 First drive device

98

 Second drive device

100

 Manual actuator

102

Second bracket

104

 Extinguishing propellant tank

106

 First pressure sensor

108

 Second pressure sensor

110

 Third pressure sensor

112

 Fourth pressure sensor

114

 control device

116

 First position sensor

118

 Second position sensor

120

 Third position sensor

122

 Fourth position sensor

124

 First inspection door

126

 Second revision door

128

 First closure sensor

130

 Second closure sensor

132

 First thermal device

134

 Second thermal device

136

 Third thermal device

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• US 5133786 A [0002, 0003]
• CN 102062430A [0011]

Claims (21)

Front cooking station ( 10 ) with: - a food preparation area ( 12 ), - an air cleaning device, comprising: - a channel system, the at least one suction port ( 14 . 16 ) for sucking air charged by the food preparation with fumes and at least one exhaust air opening ( 18 . 20 ) for discharging sucked and purified by the air cleaner means purified air in the surrounding area ( 22 ) of the front cooking station ( 10 ), - at least one fan ( 24 . 26 ), the air from the at least one suction port ( 14 . 16 ) to the at least one exhaust air opening ( 18 . 20 ), - at least one fat ( 28 . 30 ) and / or odor filter ( 32 . 34 ), which is arranged in the channel system, - a sensor arrangement with at least one pressure sensor ( 106 . 108 ), which relative to the air flow direction, the pressure before the at least one fat ( 28 . 30 ) and / or odor filter ( 32 . 34 ), characterized in that it comprises a control device ( 114 ) for controlling at least the air cleaning device, that the control device ( 114 ) to a missing, defective and / or improperly installed grease ( 28 . 30 ) and / or odor filter ( 32 . 34 ) closes when the pressure sensor ( 106 . 108 ) provides a value which is below a predetermined pressure threshold value and / or if a difference from that of the pressure sensor ( 106 . 108 ) and a further pressure value is less than a predetermined pressure difference threshold value, and that the control device ( 114 ) the operation of the at least one blower ( 24 . 26 ), after responding to a missing, defective and / or improperly installed fat ( 28 . 30 ) and / or odor filter ( 32 . 34 ) has closed. Front cooking station ( 10 ) according to claim 1, characterized in that the sensor arrangement comprises at least one further pressure sensor ( 110 . 112 ), which in relation to the direction of air flow, the pressure behind the at least one grease ( 28 . 30 ) and / or odor filter ( 32 . 34 ), and the pressure difference from the pressure in front of and behind the at least one grease 28 . 30 ) and / or odor filter ( 32 . 34 ) is formed. Front cooking station ( 10 ) according to claim 1 or 2, characterized in that the sensor arrangement at least one position sensor ( 116 . 118 ) having the correct mounting position of the at least one grease ( 28 . 30 ) and / or odor filter ( 32 . 34 ), and the control device ( 114 ) the operation of the at least one blower ( 24 . 26 ) is inhibited if the at least one position sensor ( 116 . 118 ) reports that the at least one fat ( 28 . 30 ) and / or odor filter ( 32 . 34 ) is not installed correctly. Front cooking station ( 10 ) according to claim 3, characterized in that the sensor arrangement further position sensors ( 120 . 122 ), the correct installation positions of all parts of the front cooking station ( 10 ), whose position for removing the at least one fat ( 28 . 30 ) and / or odor filter ( 32 . 34 ) must be changed. Front cooking station ( 10 ) according to one of the preceding claims, characterized in that it has at least one inspection door ( 124 . 126 ), that the sensor arrangement comprises at least one closure sensor ( 128 . 130 ), the correct closure of the at least one inspection door ( 124 . 126 ), and the control device ( 114 ) the operation of the at least one blower ( 24 . 26 ) is prevented if the at least one closure sensor ( 128 . 130 ) reports that the at least one inspection door ( 124 . 126 ) is not closed correctly. Front cooking station ( 10 ) according to one of the preceding claims, characterized in that it comprises an extinguishing device with at least one extinguishing agent nozzle ( 36 - 54 ) and at least one temperature sensor ( 56 - 74 ) for detecting overheating and / or fire. Front cooking station ( 10 ) according to claim 6, characterized in that the front cooking station ( 10 ) a first holder ( 76 ) for an extinguishing agent tank ( 78 ) and a piping system ( 80 . 82 ) of the area in which the first holder ( 76 ), is provided to the at least one extinguishing agent nozzle ( 36 - 54 ) leads. Front cooking station ( 10 ) according to claim 6 or 7, characterized in that the first holder ( 76 ) is provided in an area which faces both the food preparation area ( 12 ) as well as with respect to the duct system by a flame arrester ( 84 . 86 ) is protected. Front cooking station ( 10 ) according to claim 8, characterized in that the flame arrester ( 84 . 86 ) through a separate compartment ( 88 ) is formed. Front cooking station ( 10 ) according to claim 9, characterized in that the separate compartment ( 88 ) in the operating state of the front cooking station ( 10 ) closed compartment ( 88 ). Front cooking station ( 10 ) according to claim 9 or 10, characterized in that the separate compartment ( 88 ) in an outer side area of the front cooking station ( 10 ) is provided. Front cooking station ( 10 ) according to one of claims 6 to 11, characterized in that at least one extinguishing agent nozzle ( 36 - 42 ) the food preparation area ( 12 ) assigned. Front cooking station ( 10 ) according to one of claims 6 to 12, characterized in that at least one extinguishing agent nozzle ( 48 . 50 ) the at least one blower ( 24 . 26 ) assigned. Front cooking station ( 10 ) according to one of claims 6 to 13, characterized in that in the channel system at least one grease filter ( 28 . 30 ), and that at least one extinguishing agent nozzle ( 44 . 46 ) the at least one grease filter ( 28 . 30 ) assigned. Front cooking station ( 10 ) according to any one of claims 6 to 14, characterized in that in the channel system at least one odor filter ( 32 . 34 ), and that at least one extinguishing agent nozzle ( 52 . 54 ) the at least one odor filter ( 32 . 34 ) assigned. Front cooking station ( 10 ) according to one of the preceding claims, characterized in that the at least one exhaust air opening ( 18 . 20 ) with a closure device ( 90 ) Is provided. Front cooking station ( 10 ) according to claim 16, characterized in that the closure device ( 90 ) a grid with lamellas ( 92 . 94 ) provided by a drive device ( 96 . 98 ) can be brought into a closed position. Front cooking station ( 10 ) according to claim 17 and any one of claims 6 to 16, characterized in that the extinguishing device is the closure device ( 90 ) is activated automatically in the event of overheating and / or fire in order to prevent the at least one exhaust air opening ( 18 . 20 ) to close. Front cooking station ( 10 ) according to one of claims 6 to 18, characterized in that the extinguishing device is a manual actuating device ( 100 ), with which the extinguishing device can be actuated independently of the fact that the at least one temperature sensor ( 56 - 74 ) detects overheating and / or fire. Front cooking station ( 10 ) according to one of claims 6 to 19, characterized in that it comprises a second holder ( 102 ) for an extinguishing agent propellant tank ( 104 ) having. Front cooking station ( 10 ) according to one of the preceding claims, characterized in that the control device ( 114 ) is designed to detect a missing, defective and / or improperly installed grease ( 28 . 30 ) and / or odor filter ( 32 . 34 ) to a service center.

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