OVEN DEVICE

Description

[0001] The invention relates to an oven device according to the preamble of the claim.

[0002] A furnace device comprising a blower unit is already known in the prior art. The blower unit includes a fan wheel and at least one drive motor, which drives the fan wheel during operation. A sensor unit of the furnace device detects an electrical characteristic of the blower unit during operation. A control unit of the furnace device evaluates this characteristic during operation and monitors the function of the drive motor based on this characteristic.

[0003] The object of the invention is, in particular, to provide a generic device with improved user-friendliness. This object is achieved according to the invention by the features of claim 1, while advantageous embodiments and further developments of the invention can be found in the dependent claims.

[0004] The invention relates to an oven device, in particular an induction oven device, with at least one blower unit, which in particular has at least one blower wheel and in particular at least one drive motor for driving the blower wheel, and with at least one sensor unit, which is provided for detecting at least one electrical and / or electronic blower characteristic of the blower unit, in particular of the drive motor.

[0005] It is proposed that the furnace device shall have at least one control unit which is intended to determine, depending on the blower characteristic, at least one filter characteristic of at least one filter unit which is assigned to the blower unit.

[0006] This design allows for a high level of user-friendliness. In particular, it eliminates the need for a separate and / or additional sensor unit for detecting filter parameters, resulting in a more cost-effective design and / or reduced inventory. Knowing the filter parameters ensures proper operation and / or prevents damage to the filter unit. This eliminates the need for manual verification of proper operation by the operator, further enhancing user-friendliness.

[0007] The term "oven device", in particular "induction oven device", shall be understood to mean at least a part, in particular a sub-assembly, of an oven, in particular an induction oven.

[0008] In particular, the oven appliance has at least one muffle, which in particular defines and / or delimits at least a cooking chamber, at least partially. The oven appliance has in particular at least one door, which in particular defines and / or delimits the cooking chamber, at least partially. The phrase "at least partially defines and / or delimits" an object is to be understood in particular as meaning that the object defines and / or delimits the cooking chamber alone or together with at least one other object. In particular, in an operating state, the muffle and the door jointly define and / or delimit the cooking chamber, in particular at least to a large extent, advantageously at least substantially, and most advantageously completely.The term "at least to a large extent" shall be understood to mean, in particular, a proportion, especially a mass proportion and / or a volume proportion and / or a proportion of a number, of at least 70%, in particular of at least 80%, advantageously of at least 90% and preferably of at least 95%.

[0009] A "blower unit" is understood to be, in particular, a unit which, especially by means of the blower wheel, provides at least one, in particular directed, airflow, in particular of at least one gaseous dispersion medium. The blower unit blows, in particular by means of the blower wheel, in particular in at least one specific direction. In particular, the blower unit draws in at least one gaseous dispersion medium, in particular air, by means of an intake pressure and supplies the drawn-in gaseous dispersion medium by means of an exhaust pressure. In particular, the drive unit drives the blower wheel in an operating state. The drive unit has, in particular, at least one electric motor and is, in particular, designed as an electric motor.

[0010] A "sensor unit" shall be understood to mean, in particular, a unit which has at least one detector for detecting at least one sensor parameter and which is specifically designed to output a value characterizing the sensor parameter, wherein the sensor parameter is advantageously a physical and / or chemical quantity. For example, the sensor unit could actively detect the sensor parameter in an operating state, in particular by generating and transmitting a measurement signal, especially an electrical and / or optical measurement signal. Alternatively or additionally, the sensor unit could passively detect the sensor parameter in an operating state, in particular by detecting at least one change in the properties of at least one sensor component and / or the detector.The sensor parameter has, in particular, at least the blower parameter and is specifically designed as the blower parameter.

[0011] The blower characteristic could, for example, include at least an electrical current that the blower unit, in particular the drive motor, could draw, especially in an operating state, and / or which could be intended, in particular, for operating the drive motor. Alternatively or additionally, the blower characteristic could include at least an electrical voltage that could be applied to the blower unit, especially the drive motor, in an operating state, and / or which could be intended, in particular, for operating the drive motor. Alternatively or additionally, the blower characteristic could include at least an electrical power that could be intended, in particular, for driving the blower unit, especially the drive motor, and / or which could be intended, in particular, for operating the drive motor.In particular, alternatively or additionally, the blower parameter could include at least a rotational speed, especially of the drive motor and / or the blower wheel. The sensor unit could, for example, alternatively or additionally, detect at least a temperature, especially of the blower unit and / or advantageously of the drive motor.

[0012] The term "control unit" shall be understood to mean, in particular, an electronic unit which, in an operating state, controls and / or regulates at least one cooking appliance function and / or at least one main cooking appliance function, in particular the heating of the muffle. The control unit shall, in particular, have at least one processing unit and, in addition to the processing unit, at least one storage unit in which, in particular, at least one control and / or regulation program is stored, which is intended, in particular, for execution by the processing unit. In particular, the control unit is intended to control and / or regulate at least one cooking appliance component, other than itself, in particular an electrical and / or electronic component. The term "cooking appliance component" shall, in particular, be understood to mean at least one part, in particular a subassembly, of a cooking appliance, in particular an induction cooking appliance.At least one cooking appliance object could, for example, be at least a user interface and / or at least a heating unit and / or at least an inverter and / or at least the fan unit and / or at least cooking appliance electronics.

[0013] The oven device includes, in particular, at least one filter unit, and advantageously at least the filter unit. The phrase "assigned" to the blower unit means, in particular, that the filter unit is designed to filter at least one airflow generated by the blower unit. This airflow could, for example, be an intake flow and / or an exhaust flow. When the filter unit is installed, it is located, in particular, in close proximity to the blower unit, especially the blower wheel.

[0014] The filter unit is advantageously designed to filter at least one intake stream generated by the blower unit, which the blower unit draws in, in particular, from the cooking chamber. A "filter unit" is understood to be, in particular, a unit designed to filter, and especially to at least partially remove, dissolved particles from at least one air stream generated, in an operating state. These particles could, for example, be grease particles.

[0015] The term "intended" should be understood to mean specifically programmed, designed, and / or equipped. The fact that an object is intended for a specific function should be understood to mean, in particular, that the object fulfills and / or executes this specific function in at least one application and / or operating state.

[0016] Furthermore, it is proposed that the control unit, for the purpose of determining the filter parameter, keeps at least one other blower parameter, in particular each other blower parameter, at least substantially and advantageously completely constant.

[0017] The additional blower parameter could, for example, include at least an electric current and / or at least an electric voltage and / or at least an electric power and / or at least a rotational speed. In particular, if the blower parameter includes at least an electric current, the control unit could, for determining the filter parameter, keep at least one additional blower parameter, which includes at least an electric voltage and / or at least a rotational speed, essentially constant.The phrase "the control unit keeps at least one other fan parameter at least substantially constant" for determining the filter parameter means, in particular, that the control unit maintains a value of the other fan parameter within a range that is limited and / or defined by a minimum and a maximum value, and in which the ratio of the minimum value to the maximum value is at least 0.8, in particular at least 0.85, advantageously at least 0.9, particularly advantageously at least 0.92, preferably at least 0.95, and most preferably at least 0.98. This allows, in particular, for an optimal evaluation of the filter parameter, as it minimizes other influencing factors.

[0018] The control unit could consider at least one reference fan parameter when determining the filter parameter. In particular, the control unit could obtain the reference fan parameter from at least one other unit. This other unit could, for example, have a user interface and / or be configured as a user interface. Advantageously, the other unit could have at least one external unit and / or be configured as an external unit. The external unit could, for example, be a mobile device and / or a network, such as the internet. Preferably, the control unit has at least one storage unit in which at least one reference fan parameter is stored, which the control unit considers when determining the filter parameter. The reference fan parameter is, in particular, configured as a reference parameter that is assigned to the fan parameter.In particular, the control unit compares the fan characteristic with the reference fan characteristic to determine the filter characteristic. The storage unit stores, for example, at least two, in particular at least three, advantageously at least four, particularly advantageously at least six, preferably at least eight, and particularly preferably a plurality of reference fan characteristics. This allows the filter characteristic to be determined with particular accuracy, thus ensuring a high level of user-friendliness.

[0019] Furthermore, it is proposed that the oven device, in particular at least, comprises the filter unit and at least one air guide unit, which is specifically designed to guide at least one airflow generated by the blower unit and on which the filter unit can be reversibly arranged. In particular, the filter unit can be attached to and / or detached from the air guide unit in a non-destructive, tool-free manner. For example, in a mounted state, the filter unit could be attached to the air guide unit by means of at least one screw connection, at least one snap-fit ​​connection, at least one clamping connection, and / or at least one locking connection. This allows for a high degree of flexibility.In particular, the filter unit can be arranged on the air duct unit in selected cooking processes where its presence is especially advantageous, and can be omitted in other cooking processes where its presence is not required. This allows for a more durable design, particularly of the filter unit. Specifically, the selected cooking process could include at least one cooking process designated as "pyrolysis" and / or at least one cooking process designated as "barbecue." The other cooking process could include at least one cooking process designated as "hot air."

[0020] Furthermore, it is proposed that the filter unit includes at least one smoke filter and is specifically designed as a smoke filter. In particular, the filter unit includes at least one filter element with a defined pore size, which specifically determines the particle size that can be filtered by the filter unit. By selecting and / or adjusting the pore size, a pressure in the cooking chamber can be set. The pore size is selected to be sufficiently large to allow and / or ensure the intake of smoke from the cooking chamber by the blower unit. The pore size is selected to be as small as possible to allow and / or ensure the filtration of particles of a specific size in the airflow.This allows smoke extracted from the cooking chamber to be filtered, thereby preventing contamination of the blower unit and / or reducing cleaning frequency for the operator. In particular, a more durable design can be achieved.

[0021] Furthermore, it is proposed that the oven device includes at least one muffle, which at least partially delimits a cooking chamber within which the filter unit is arranged in at least one assembled state. In particular, the filter unit, when assembled, is located on the side of the blower unit facing the cooking chamber. This allows for easy access to the filter unit, enabling an operator to assemble and / or disassemble it with ease. This, in turn, provides a particularly high level of user-friendliness.

[0022] The fan parameter could, for example, include at least an electrical voltage and / or at least an electrical power and / or at least a rotational speed. Preferably, the fan parameter includes at least an electrical current, which is intended, in particular, for operating the drive motor. The sensor unit could, for example, include at least one ammeter, which could be intended, in particular, for detecting the fan parameter. This allows the fan parameter to be detected particularly easily, resulting in a simple and / or cost-effective design.

[0023] Furthermore, it is proposed that the filter parameter includes at least one presence parameter and, in particular, indicates and / or characterizes the presence and / or absence of the filter unit on the blower unit. Specifically, the control unit determines, based on the filter parameter, at least the presence and / or absence of the filter unit on the blower unit. For example, in the case of a cooking process where the presence of the filter unit is advantageous, the control unit could output, based on the filter parameter, at least one piece of information by which the control unit could prompt an operator to install the filter unit and / or by which the control unit could confirm the presence of the filter unit on the blower unit to an operator.The control unit could, for example, be designed to output information, depending on the filter's characteristics, during a cooking process where the filter unit is not required. This information could then be used to prompt the operator to detach the filter unit and / or confirm its absence from the blower unit. This would significantly improve ease of use. Specifically, it would allow the operator to be easily informed about the presence and / or absence of the filter unit, thus eliminating the need for time-consuming checks.

[0024] Furthermore, it is proposed that the filter parameter includes at least one contamination parameter and, in particular, identifies and / or characterizes the contamination and / or degree of contamination of the filter unit. The control unit determines, in particular, at least one degree of contamination of the filter unit as a function of the filter parameter. The oven device has, in particular, at least one pressure sensor unit, which is designed, in particular, to detect at least one pressure parameter. The pressure parameter defines and / or characterizes, in particular, at least one pressure drop across the filter unit. The control unit stores, in particular, at the start of at least one cooking process, especially under certain and / or existing boundary conditions, at least one pressure parameter, detected, in particular, by means of the pressure sensor unit, in the storage unit.In particular, the control unit, especially by means of the pressure sensor unit, repeatedly detects the pressure parameter at a later time, for example, during and / or at the end of the cooking process. The control unit determines the contamination parameter and / or the degree of contamination of the filter unit by comparing the pressure parameter at the start of the cooking process with the pressure parameter at a later time. The control unit determines the contamination parameter, especially exclusively, in cooking processes where the filter unit is located on the air distribution unit. For example, the control unit could be designed to output at least one piece of information, depending on the contamination parameter, which could prompt an operator to clean the filter unit.The control unit could, for example, allow and / or block a cooking process depending on the level of contamination. Specifically, the control unit could block the cooking process if the level of contamination is too high and prompt the operator to clean the filter unit. This allows for easy detection of filter unit contamination, thus preventing cooking with a dirty filter unit. In particular, this enables a more efficient cooking process, as it prevents suction through a dirty filter unit and thus allows for energy-saving cooking.

[0025] The control unit could, in determining the filter characteristic, consider at least one additional blower characteristic, for example, besides the blower characteristic. Preferably, the furnace device has at least one door, the open state of which the control unit considers when determining the filter characteristic, particularly with regard to saturation of the blower characteristic. The control unit's storage unit stores, in particular, at least one reference blower characteristic associated with an open state of the door and at least one reference blower characteristic associated with a closed state of the door. In particular, the blower characteristic exhibits different saturations depending on the open state of the door. Saturation of the blower characteristic depends, in particular, on the open state of the door.This allows for a particularly precise determination of the filter parameters, which in turn provides a high level of user-friendliness.

[0026] Particularly high ease of use can be achieved in particular by an oven, especially an induction oven, with at least one oven device according to the invention.

[0027] The furnace device is not to be limited to the application and embodiment described above. In particular, the furnace device may, to achieve a functionality described herein, have a different number of individual elements, components, and units than specified herein.

[0028] Further advantages become apparent from the following description of the drawings. The drawings illustrate exemplary embodiments of the invention. The drawings, the description, and the claims contain numerous features in combination. A person skilled in the art will expediently consider the features individually and combine them into meaningful further combinations.

[0029] They show: Fig. 1 shows a cooking appliance designed as an oven with a cooking appliance device designed as an oven device in a schematic representation; Fig. 2 shows the cooking appliance with the cooking appliance device in a disassembled state with a filter unit of the cooking appliance device in a schematic sectional view; Fig. 3 shows the cooking appliance with the cooking appliance device in an assembled state with a filter unit of the cooking appliance device in a schematic sectional view; and Fig. 4 shows a diagram of a method for operating the cooking appliance device in a schematic representation.

[0030] Figure 1 Figure 28a shows a cooking appliance designed as an oven, which is in particular formed by an induction cooking appliance designed as an induction oven.

[0031] The cooking appliance 28a has in particular at least one and advantageously exactly one cooking appliance device 10a designed as an oven device, which is in particular formed by an induction cooking appliance device designed as an induction oven device.

[0032] The cooking appliance 10a has, in particular, at least one and advantageously exactly one muffle 24a. The muffle 24a, in particular, at least partially delimits at least one and advantageously exactly one cooking chamber 22a. The muffle 24a, in particular together with an appliance door 26a, delimits the cooking chamber 22a, at least substantially. The cooking appliance 10a has, in particular, at least one and advantageously at least one appliance door 26a.

[0033] In the present embodiment, the cooking appliance 10a has, in particular, five cooking chamber walls 50a. The cooking chamber walls 50a are, in particular, part of the muffle 24a. Specifically, the muffle 24a comprises the cooking chamber walls 50a. The cooking chamber walls 50a, together with the appliance door 26a, define, at least substantially, the cooking chamber 22a.

[0034] One of the cooking chamber walls 50a is specifically designed as a floor wall 52a. One of the cooking chamber walls 50a is specifically designed as a ceiling wall 54a. One of the cooking chamber walls 50a is specifically designed as a rear wall 56a. Two of the cooking chamber walls 50a are specifically designed as side walls 58a and 60a, respectively. In the following, only one of the cooking chamber walls 50a will be described in detail.

[0035] The cooking appliance 10a has, in particular, at least one and advantageously exactly one operator interface 30a, especially for the input and / or selection of operating parameters, for example, a heating power and / or a heating power density and / or a heating zone. The operator interface 30a is specifically designed for outputting a value of an operating parameter to an operator.

[0036] The cooking appliance 10a has, in particular, at least one and advantageously exactly one control unit 16a. The control unit 16a is specifically designed to execute actions and / or change settings depending on operating parameters entered via the operator interface 30a. In particular, the control unit 16a regulates the energy supply to at least one heating element 32a during a heating operation.

[0037] In the present embodiment, the cooking appliance 10a has, in particular, at least one, and advantageously exactly one, heating element 32a. The heating element 32a is, in particular, designed as a ring heating element. In particular, the heating element 32a is designed as a resistance heating element.

[0038] The heating element 32a is arranged, in particular, in a rear area of ​​the muffle 24a. Specifically, the heating element 32a is arranged within the cooking chamber 22a.

[0039] In addition to the heating element 32a, the cooking appliance 10a could, for example, have at least one second heating element and advantageously at least one third heating element (not shown). The second heating element and / or the third heating element could, in particular, be designed as an inductor.

[0040] In particular, the second heating element could be arranged outside the cooking chamber 22a. The second heating element could be installed in a position particularly above the ceiling wall 54a and particularly in the immediate vicinity of the ceiling wall 54a. In particular, the second heating element could be designed to provide top heat. In an operating state in which the control unit 16a operates the second heating element, the second heating element provides top heat.

[0041] In particular, the third heating element could be arranged outside the cooking chamber 22a. The third heating element could be installed in a position particularly below the bottom wall 52a and particularly in the immediate vicinity of the bottom wall 52a. In particular, the third heating element could be designed to provide bottom heat. In an operating state in which the control unit 16a operates the third heating element, the third heating element provides bottom heat.

[0042] The cooking appliance 10a has, in particular, at least one and advantageously exactly one blower unit 12a. In particular, the blower unit 12a has at least one blower wheel 36a. The blower unit 12a is provided, in particular by means of the blower wheel 36a, for providing at least one airflow.

[0043] The blower unit 12a has, in particular, at least one and advantageously exactly one drive motor 40a for driving the blower wheel 36a (see Figures 2 and 3 In particular, the drive motor 40a is designed as an electric motor. In an operating state, the drive motor 40a drives the blower wheel 36a, in particular by means of a drive torque.

[0044] The cooking appliance 10a has in particular at least one and advantageously exactly one air guidance unit 34a (cf. Figures 1 to 3 The air guidance unit 34a is arranged, in particular, within the cooking chamber 22a. In an assembled state, a main extension plane of the air guidance unit 34a is aligned, in particular, at least substantially parallel to a main extension plane of the rear wall 56a.

[0045] A "principal extension plane" of an object is understood to be, in particular, a plane that is parallel to a largest face of a smallest imaginary geometric cuboid that just completely encloses the object, and in particular passes through the center of the cuboid. "Substantially parallel" here is understood to mean, in particular, an orientation of a direction relative to a reference direction, especially in a plane, wherein the direction has a deviation from the reference direction of, in particular, a maximum of 8°, advantageously a maximum of 5°, and most advantageously a maximum of 2°.

[0046] In its assembled state, the blower unit 12a, in particular the blower wheel 36a and / or the drive motor 40a, is arranged on one side of the air guide unit 34a facing the rear wall 56a. The air guide unit 34a is specifically designed to guide an airflow generated by the blower unit 12a. In an operating state, the air guide unit 34a specifically guides an airflow generated by the blower unit 12a.

[0047] The air distribution unit 34a has, in particular, at least one passage area 38a, which is specifically designed for the passage of at least one airflow. In particular, the blower unit 12a, especially by means of the blower wheel 36a, draws air from a cooking area of ​​the cooking chamber 22a through the passage area 38a during operation.

[0048] The cooking appliance 10a has in particular at least one and advantageously exactly one filter unit 18a (cf. Figure 3 The filter unit 18a is specifically designed to filter at least one airflow generated by the blower unit 12a in an operating state and, in particular, to at least partially remove particles contained in the airflow from the airflow.

[0049] The filter unit 18a has, in particular, at least one and advantageously exactly one smoke filter. In particular, the filter unit 18a, by means of the smoke filter, filters at least one airflow generated by the blower unit 12a in an operating state and, in particular, removes particles contained in the airflow, at least partially. The filter unit 18a is, in particular, associated with the blower unit 12a.

[0050] The filter unit 18a can be arranged on the air duct unit 34a in a reversible manner. In its assembled state, the filter unit 18a can be detached from the air duct unit 34a without tools. For example, in its assembled state, the filter unit 18a could be attached to the air duct unit 34a by means of a snap-fit ​​connection.

[0051] In its assembled state, the filter unit 18a is arranged, in particular, within the cooking chamber 22a. Specifically, in its assembled state, the filter unit 18a is arranged on the side of the air duct unit 34a facing away from the rear wall 56a.

[0052] The filter unit 18a, when assembled, is arranged upstream of the passage area 38a, particularly when viewed in the fluid flow direction of an intake stream. Specifically, when assembled, the passage area 38a and the filter unit 18a are arranged overlapping, particularly when viewed perpendicularly to a main extension plane of the air distribution unit 34a. When viewed perpendicularly to a main extension plane of the air distribution unit 34a, the passage area 38a is arranged within a surface spanned by the filter unit 18a.

[0053] The cooking appliance 10a has in particular at least one and advantageously exactly one sensor unit 14a (cf. Figures 2 and 3 ). In the Figures 2 and 3The sensor unit 14a is shown only schematically. The sensor unit 14a is specifically designed to detect at least one electrical blower characteristic of the blower unit 12a. In an operating state, the sensor unit 14a specifically detects the electrical blower characteristic of the blower unit 12a.

[0054] The sensor unit 14a detects, in particular, an electrical blower characteristic of the drive motor 40a of the blower unit 12a during operation. In the present embodiment, the blower characteristic includes at least an electrical current, which is intended, in particular, for the operation of the drive motor 40a.

[0055] The control unit 16a determines, in an operating state, at least one filter characteristic of the filter unit 18a, which is assigned to the blower unit 12a, particularly depending on the blower characteristic. Specifically, the control unit 16a is designed to determine the filter characteristic of the filter unit 18a, which is assigned to the blower unit 12a, depending on the blower characteristic.

[0056] To determine the filter parameter, the control unit 16a keeps at least one further blower parameter at least substantially constant (see also the table below). In the present embodiment, the further blower parameter includes, in particular, at least an electrical voltage, which is provided especially for operating the drive motor 40a. In particular, the further blower parameter includes at least a rotational speed.

[0057] The control unit 16a includes, in particular, at least one storage unit 20a (see Figure 1 In storage unit 20a, at least one reference fan parameter is stored. Advantageously, storage unit 20a can store a large number of reference fan parameters. For example, the reference fan parameters could be stored in storage unit 20a in the form of a table and / or as a mathematical function. Only one of the reference fan parameters will be described below.

[0058] In particular, the control unit 16a takes the reference fan parameter into account when determining the filter parameter. Specifically, when determining the filter parameter, the control unit 16a compares the detected fan parameter with the stored reference fan parameter. The control unit 16a determines the filter parameter specifically by comparing the detected fan parameter with the reference fan parameter.

[0059] The following table presents, in particular, an excerpt from an experiment to determine the filter characteristic. Specifically, the table shows the test conditions and the detected fan characteristics. Theo. RPM filter Tür Voltage [V] Current [A] Power [W] Expert. RPM 1625 No To 23,819 0,338 9,100 1603 1625 No On 23,829 0,379 9,000 1603 1625 Yes To 23,869 0,225 5,400 1603 1625 Yes On 23,871 0,225 5,300 1603 1625 No To 23,840 0,316 7,500 1600 1625 No On 23,800 0,336 8,000 1600 1625 Yes To 23,870 0,196 4,590 1600 1625 Yes On 23,871 0,200 4,750 1600

[0060] The first column, labelled "Theo. RPM", shows a theoretical value for a revolution. The second column, labelled "Filter", shows the presence of filter unit 18a. The third column, labelled "Door", shows the open / closed state of the device door 26a.

[0061] In a fourth column, labelled "Voltage [V]", a detected value of an electrical voltage intended for operating the drive motor 40a is shown, in particular in volts. In a fifth column, labelled "Current [A]", a detected value of an electrical current intended for operating the drive motor 40a is shown, in particular in amperes. In a sixth column, labelled "Power [W]", a detected value of an electrical power intended for operating the drive motor 40a is shown, in particular in watts. In a seventh column, labelled "Expert. RPM", a detected value of a revolutions per minute is shown.

[0062] The table shows in particular that the blower parameter, which includes an electric current, depends on the presence of filter unit 18a.

[0063] In particular, a value of the blower parameter, which includes an electrical current, is smaller in the case of the presence of filter unit 18a than in the case of the absence of filter unit 18a. The filter parameter, which the control unit 16a determines as a function of the blower parameter, includes in particular at least one presence parameter of filter unit 18a.

[0064] As can be seen in particular from the table, the dependence of the blower parameter is independent of the presence parameter of the filter unit 18a. The table shows in particular that the control unit 16a keeps the other blower parameter, which includes at least one revolution speed, at least substantially constant in order to determine the filter parameter. In particular, the control unit 16a keeps the other blower parameter, which includes at least one electrical voltage, at least substantially constant in order to determine the filter parameter.

[0065] When determining the filter characteristic, the control unit 16a takes into account at least one opening state of the device door 26a. In particular, the opening state of the device door 26a influences a saturation value of the fan characteristic.

[0066] In addition to the filter parameter, which includes at least one presence parameter of the filter unit 18a, the control unit 16a determines, as a function of the blower parameter, at least one filter parameter, which includes at least one contamination parameter of the filter unit 18a. The filter parameter determined by the control unit 16a as a function of the blower parameter includes, in particular, at least one contamination parameter of the filter unit 18a.

[0067] In a method for operating the cooking appliance 10a, at least one filter characteristic of the filter unit 18a, which is assigned to the blower unit 12a, is determined depending on the blower characteristic. In particular, in a detection step 42a, the electrical blower characteristic of the blower unit 12a is detected, especially by means of the sensor unit 14a (see figure). Figure 4 ).

[0068] In particular, in determination step 44a, the filter characteristic of filter unit 18a, which is assigned to blower unit 12a, is determined depending on the blower characteristic. When determining the filter characteristic, the reference blower characteristic is taken into account, especially in determination step 44a. Specifically, the other blower characteristic is kept constant for the determination of the filter characteristic, particularly in detection step 42a and / or in determination step 44a.

[0069] In particular, in action step 46a, at least one action is initiated and advantageously executed, especially by the control unit 16a, particularly depending on the determined filter parameter. The action could, for example, be the output of at least one piece of information to an operator. Alternatively or additionally, the action could be the execution of a cooking program and / or a cooking process. Reference sign

[0070] 10 Cooking appliance device 12 Blower unit 14 Sensor unit 16 Control unit 18 Filter unit 20 Storage unit 22 Cooking chamber 24 Muffle 26 Appliance door 28 Cooking appliance 30 Operator interface 32 Heating element 34 Air guide unit 36 ​​Blower wheel 38 Passage area 40 Drive motor 42 Detection step 44 Determination step 46 Action step 50 Cooking chamber wall 52 Floor wall 54 Ceiling wall 56 Rear wall 58 Side wall 60 Side wall

Claims

1. Oven apparatus, in particular induction oven apparatus, having at least one fan unit (12a) and having at least one sensor unit (14a) that is provided for a detection of at least one electrical fan parameter of the fan unit (12a), characterised by at least one control unit (16a) that is provided so as to determine, in dependence upon the fan parameter, at least one filter parameter of at least one filter unit (18a), which is allocated to the fan unit (12a).

2. Oven apparatus according to claim 1, characterised in that the control unit (16a) maintains at least one further fan parameter as at least essentially constant for the determination of the filter parameter.

3. Oven apparatus according to claim 1 or 2, characterised in that the control unit (16a) has at least one storage unit (20a) and at least one reference fan parameter is stored in said storage unit and the control unit (16a) takes said reference fan parameter into consideration in the case of determining the filter parameter.

4. Oven apparatus according to one of the preceding claims, characterised by the filter unit (18a) and by at least one air guiding unit (34a) and it is possible to arrange the filter unit (18a) in a reversible manner on said air guiding unit.

5. Oven apparatus according to claim 4, characterised in that the filter unit (18a) has at least one smoke filter.

6. Oven apparatus according to claim 4 or 5, characterised by at least one muffle (24a) that at least in part delimits at least one cooking compartment (22a) and the filter unit (18a) is arranged within said cooking compartment in at least one assembled state of the filter unit (18a).

7. Oven apparatus according to one of the preceding claims, characterised in that the fan parameter comprises at least one electrical current.

8. Oven apparatus according to one of the preceding claims, characterised in that the filter parameter comprises at least one presence parameter.

9. Oven apparatus according to one of the preceding claims, characterised in that the filter parameter comprises at least one soiling parameter.

10. Oven apparatus according to one of the preceding claims, characterised by at least one appliance door (26a) and the control unit (16a) takes into consideration the opening state of said appliance door in the case of determining the filter parameter.

11. Oven, in particular an induction oven, having at least one oven apparatus according to one of the preceding claims.