Cooking appliance with switching device

Abstract

Cooking appliance comprising at least one cooking chamber with at least one cooking chamber opening closable by means of at least one cooking chamber door (1) and at least one locking device (5) by means of which the cooking chamber door (1) can be locked, wherein the locking device (5) interacts with at least one switching device for controlling an energy supply to at least one first consumer of the cooking appliance depending on a position of the locking device (5), wherein the cooking chamber door (1) has at least one open position in which the cooking chamber is accessible through the cooking chamber opening and at least one closed position in which the cooking chamber opening is closed, characterized in that the cooking chamber door (1) has at least one ventilation position in which at least one cooking chamber atmosphere located in the cooking chamber can escape between the cooking chamber door (1) and the cooking chamber opening.has and the switching device comprises at least two independently operating switching devices (25, 25').

Description

[0001] The present invention relates to a cooking appliance comprising at least one cooking chamber with at least one cooking chamber opening which can be closed by means of at least one cooking chamber door and at least one locking device by means of which the cooking chamber door can be locked, wherein the locking device interacts with at least one switching device for controlling a power supply to at least one first consumer of the cooking appliance as a function of a position of the locking device, wherein the cooking chamber door has at least one open position in which the cooking chamber is accessible through the cooking chamber opening, and at least one closed position in which the cooking chamber opening is closed.

[0002] Various cooking appliances with locking devices are known from the prior art. For example, DE 101 43 640 C1 discloses a safety device for walk-in interior spaces, in particular of cooking appliances. It is proposed that a cooking chamber door have an operating lever and a bolt connected to the operating lever in a rotationally secure manner. When the cooking chamber door is closed, the bolt can engage a safety catch. This depends on the position of the safety catch. It is proposed that the position of the safety catch can be changed mechanically or via an electrical circuit via a release lever arranged in the interior of the cooking appliance. By means of the circuit, the current supply to an electromagnet can be changed in such a way that the position of the safety catch is changed via a permanent magnet arranged on the safety catch by an electric field generated by the electromagnet.

[0003] Furthermore, cooking appliances with locking devices are known from the prior art, which make it possible to detect the position of a locking element.

[0004] For example, DE 10 2004 007 235 B4 discloses a generic cooking appliance comprising a switching device for controlling the cooking appliance. It is proposed that a movable door handle with a door latch movable in accordance with its movement be provided on a door. It is proposed that a magnet be arranged in the door latch, specifically at a location that is positioned adjacent to a switch when the door handle is in a closed position. The switch is fixed to the housing. The switching device is intended to be operable when the door is in the closed position, but not operable when the door handle is in other positions.

[0005] Another cooking appliance of this type is known from US 4,995,313 A. It is proposed that a bolt be arranged on a cooking chamber door. This bolt can be brought into engagement with a latch rotatably arranged on the housing of the cooking appliance. For this purpose, the latch has a handle to enable rotation of the latch. The cooking chamber door can only be opened if the engagement between the bolt and the latch is released, while the cooking chamber door is otherwise locked by means of the latch. It is proposed that a magnet be arranged in the region of the latch, which interacts with a sensor arrangement arranged on the housing in order to be able to detect the position of the latch.

[0006] The switching device described in the previously described cooking appliances serves to interrupt the power supply to a consumer within the cooking appliance, in particular a heating device or a steam generator, as soon as the door is moved from a closed position to a ventilation position. This is intended to prevent injury to a user during ventilation due to continued operation of the steam generator and the heating device or fan.

[0007] A disadvantage of these cooking appliances known from the prior art, however, is that malfunctions of the switching device can occur, so that a desired interruption of the power supply to the consumer is not guaranteed when the cooking chamber door is opened, in particular the cooking chamber door cannot be moved from a locked to an unlocked position without the power supply being interrupted. The switching devices described in the prior art can also be easily “outsmarted” by positioning a permanent magnet on the sensor, which is generally freely accessible. For example, a user can use this to try to prevent a heating process or a cooking process from being interrupted in order to avoid an extension of the cooking time. For example, the user may want to carry out a rotating loading of the cooking chamber without the power supply to the cooking chamber being reduced or interrupted.

[0008] Other cooking appliances of this type are known from DE 34 15 271 A1 and DE 10 2005 050 832 A1.

[0009] It is therefore an object of the present invention to further develop the generic cooking appliance in such a way that the disadvantages known from the prior art are overcome, in particular to provide a cooking appliance which meets higher safety requirements.

[0010] This object is achieved according to the invention in that the cooking chamber door has at least one ventilation position in which at least a cooking chamber atmosphere located in the cooking chamber can escape between the cooking chamber door and the cooking chamber opening, and the switching device comprises at least two independently operating switching devices.

[0011] Furthermore, the invention proposes that in the ventilation position, the cooking chamber atmosphere in the cooking chamber can escape through a gap between, on the one hand, at least one sealing device and, on the other hand, the cooking chamber door and / or the cooking chamber opening and / or between at least two sealing devices.

[0012] In the two aforementioned embodiments, it is particularly preferred that the locking device has at least one locking position and at least one unlocking position, wherein a transition from the unlocking position to the locking position is preferably prevented in the open position and / or the ventilation position of the cooking chamber door and / or is only possible in the closed position.

[0013] A cooking appliance according to the invention can also be characterized in that the locking device comprises at least one manipulation element, such as at least one door handle, by means of which the locking device can be transferred at least into the locking position and / or the unlocking position and / or the cooking chamber door can be moved between at least two different positions, in particular the open position, the closed position and / or the ventilation position, at least one locking element, such as a door latch, which can be brought into engagement with at least one engagement element, such as a catch block, and / or at least one connecting element by means of which the manipulation element and the locking element are in mechanical operative connection.

[0014] In the aforementioned embodiment, it is particularly preferred that the manipulation element and the locking element are securely connected to one another by means of the connecting element.

[0015] As an alternative to the aforementioned embodiment, it can be provided that the manipulation element, the connecting element and / or the locking element is or are designed in such a way that a relative movement between the manipulation element and the locking element is possible.

[0016] The invention also proposes that the engagement element is mounted in a stationary manner relative to the cooking chamber opening, the cooking chamber and / or a cooking appliance housing, wherein in particular the cooking chamber door is movable relative to the cooking appliance housing and / or the manipulation element, the connecting element and / or the locking element is / are mounted in a manner that prevents it from being moved along with the cooking chamber door, preferably relative to the cooking chamber door, in particular between the locking position and the unlocking position.

[0017] It is particularly preferred that the locking device comprises the switching device at least in some areas.

[0018] Furthermore, a cooking appliance according to the invention can be characterized in that the switching devices each comprise at least one first switching element and at least one second switching element, wherein preferably a switching state of the switching device can be changed depending on a relative position and / or a relative distance of the first switching element and the second switching element, wherein in particular the position and / or the distance is detected without contact, preferably without contact and / or can be detected mechanically, optically, electrically, electromagnetically and / or magnetically.

[0019] In the aforementioned embodiment, it is particularly preferred that the first switching element is arranged in a fixed position relative to the cooking chamber opening, the housing, the engagement element and / or a door leaf of the cooking chamber door and / or the second switching element is arranged in a fixed position relative to the locking element, the connecting element and / or the manipulation element.

[0020] A cooking appliance according to the invention can also be characterized by at least one detection device with at least one detection apparatus, wherein the at least one position of the cooking chamber door, in particular of the door leaf, can be detected by means of the detection apparatus, wherein preferably at least two independently operating detection apparatuses are present and / or the detection apparatus comprises at least a first detection element and at least one second detection element, wherein preferably a switching state of the detection device can be changed depending on a relative position and / or a relative distance between the first detection element and the second detection element, wherein in particular the position and / or the distance is detected without contact, preferably without contact and / or can be detected mechanically, optically, electrically, electromagnetically and / or magnetically.

[0021] According to the invention, it is also proposed that the energy supply to the first consumer can be controlled by means of the detection device and / or the energy supply to at least one second consumer can be controlled by means of the detection device, in particular independently of the switching device.

[0022] It is particularly preferred that the first consumer and / or the second consumer comprises at least one microwave generator, at least one steam generator, at least one blower device, at least one heating device and / or at least one cleaning device.

[0023] The invention also proposes that a connection of the consumer to an electrical phase can be switched by means of the first switching device and a connection of the consumer to an electrical ground can be switched by means of the second switching device.

[0024] In the aforementioned embodiment, it is particularly preferred that the first switching device and the first detection device are electrically connected in series and / or the second switching device and the second detection device are electrically connected in series.

[0025] The invention also proposes that the first switching element and / or the first detection element comprises at least one magnetic switch, in particular a reed contact, and the second switching element and / or the second detection element comprises at least one magnet, preferably a permanent magnet, the first switching element and / or the first detection element comprises at least one optical switch, in particular a photosensor, and the second switching element and / or the second detection element comprises at least one emission device for light, preferably invisible or visible light.

[0026] A further development of the invention can be characterized in that the first switching element, the second switching element, the first detection element and / or the second detection element comprises at least one manipulation detection device, wherein by means of the manipulation detection device in particular an attempt to trigger the switching device by positioning an element different from the second switching element in the region of the first switching element, an element different from the first switching element in the region of the second switching element, an element different from the second detection element in the region of the first detection element and / or an element different from the first detection element in the region of the second detection element can be detected.

[0027] Finally, for the aforementioned embodiment, the invention proposes that the manipulation detection device comprises at least one safety switch, preferably a safety magnetic switch, and / or at least one safety light sensor, wherein the safety switch interrupts the power supply for the first consumer and / or the second consumer upon approach of an element different from the first switching element, second switching element, first detection element, second detection element.

[0028] The invention is therefore based on the surprising discovery that, by having a switching device comprising two switching apparatuses that operate independently of one another, redundancy in the detection of a locked or unlocked state of a door can be achieved. Particularly when using a microwave generator, it is essential that the power supply to the microwave generator is reliably interrupted when the door is unlocked. Otherwise, considerable danger could arise for the user if the generation of microwave radiation was not interrupted when the cooking chamber door was opened. It is essential that the power supply to the microwave generator is interrupted when the cooking chamber door leaf is still in the closed position but the cooking chamber door is already being moved from a locked to an unlocked position.This ensures that the consumer is switched off as soon as the locking device moves from the locked to the unlocked position, which is preferably only possible when the cooking chamber door is in the closed position, before the door can be moved from a closed position to another position, such as the ventilation or open position.

[0029] The switching device preferably operates contactlessly, so that a user cannot "outsmart" the switching device, for example by mechanically manipulating the locking device or locking mechanism. Furthermore, it is preferred that a switching element is not arranged directly on the manipulation element, such as a door handle, or the locking element, such as a door latch. This means that these elements are freely accessible from the outside, and it is recognizable at which point a further switching element is arranged that interacts with the switching element arranged in the door latch or door handle. This would enable the user to outsmart the actuation of the switching device by arranging an external element in a position where the switching element arranged on the door handle and the door latch is normally arranged.If, however, the switching element is arranged in an area of ​​a connecting element between the door handle and the door latch that is not accessible from the outside and cannot be seen, it is no longer possible for a user to determine the position of the switching element interacting with the switching element, and thus manipulation of the switching device or switching mechanism is effectively prevented.

[0030] In particularly preferred embodiments, a tamper-detection device is provided in the region of a switching element. For example, in the case of contactless magnetic interaction between the switching elements, the tamper-detection device can comprise a safety switch. This safety switch is preferably arranged in the region of the second switching element, such as a reed contact, and has the property that, while it detects the interaction with the switching element, it does not react to a switching element that differs from the switching element. This effectively prevents external tampering with the switching device.

[0031] The redundant design of the switching device ensures that a corresponding power supply to a load, such as a microwave generator, is only established when both switching devices are actuated. If one of the switching devices malfunctions, the power supply is not established, thus effectively preventing any danger to the user. For example, a malfunction could result in one of the switching devices not detecting the unlocking of the locking device and not ensuring an interruption of the power supply when the locking device is moved from the locked to the unlocked position. However, the redundant design of the switching device ensures this interruption.

[0032] In addition to the switching device, the cooking appliance can also comprise a detection device. This detection device detects, in particular, the position of the door leaf or cooking chamber door. In particular, it can thus be determined whether the door is in a closed, a vented, or an open position. Safety can be further increased by the detection device. For example, the safety devices and the detection device can be wired in such a way that the power supply to the consumer is only activated when both switching devices detect that the locking device is in a locked position and, at the same time, the door leaf is in a closed position, which is detected by the detection device. It is particularly preferred here for the detection device to also be designed redundantly, i.e. to comprise at least two detection devices.

[0033] It is also possible for the signals supplied by the detection device to detect when the door is moved into the closed position, but at the same time the locking device is not yet in the locked position.

[0034] In such a case, the power supply to a second consumer, such as a ventilation system, can be activated in order to utilize the time between the locking device moving from the unlocked to the locked position to even out the cooking chamber atmosphere. This allows a user to bring the cooking chamber door into a closed position, resting it against the door frame, but not yet locking the door, thus initiating the evening out of the cooking chamber atmosphere.

[0035] Without having to move the door from the locked to the unlocked position, the door can then be opened to load the cooking chamber. The power supply to the ventilation system is preferably interrupted when the door is moved from the closed position. The door is then moved back to the closed position, and circulation of the cooking chamber atmosphere is resumed before the cooking chamber door is finally locked. In other words, it is possible to control less "dangerous" functions of the cooking appliance via the detection device, while those loads that pose a danger to the user if they operate when the cooking chamber door is in the unlocked position are switched via the locking or switching device.

[0036] Further features and advantages of the invention will become apparent from the following description, in which preferred embodiments of the invention are explained with reference to schematic drawings. Herein: Fig. 1 is a partial view of a cooking appliance showing a cooking chamber door in a closed, unlocked position; Fig. 2 a view of the cooking chamber door of the Fig. 1 in a locked, closed position; Fig. 3 a partial view according to section A of the figure in the unlocked position of the cooking chamber door; Fig. 4 a detailed view according to the Fig. 3 in a locked position of the door; Fig. 5 a plan view of the locking device D in Fig. 1; and Fig. 6 a schematic circuit diagram of the switching device and detection device of the cooking chamber door of the Fig. 1 to 5.

[0037] In Fig. Figure 1 shows a perspective view of a cooking chamber door 1 of a cooking appliance according to the invention. The cooking chamber door 1 serves to close or open a cooking chamber opening of the cooking appliance. For this purpose, the cooking chamber door 1 is mounted so as to be rotatable about hinges 3.

[0038] The hinges 3 are attached to a door frame or housing of the cooking appliance (not shown) on the side facing away from the cooking chamber door 1.

[0039] The cooking chamber door 1 has a locking device 5. The locking device 5 comprises a manipulation element in the form of a door handle 7, a locking element in the form of a latch 9, and a connecting element 11 by means of which the door handle 7 is mechanically connected to the latch 9.

[0040] In Fig. 1, the cooking chamber door 1 is in a closed position, but is unlocked. In Fig. 2, the cooking chamber door 1 is shown in a closed and locked position.

[0041] As in the Fig. 2, a rotation of the door handle 7, which is indicated by the arrow 13, leads to a translational movement of the bolt 9, as indicated by arrows 15. This translational movement of the bolt 9 leads to the bolt 9 mechanically engaging in a Fig. 1 and Fig. 2, the engaging element designated 19 is located. This engagement ensures that the cooking chamber door 1, in its locked state, cannot be moved from the closed position to another position.

[0042] In Fig. 3 and Fig. 4 is a detailed view according to section A in Fig. 1. In the Fig. 3 and Fig. 4, a door frame 17 is partially shown. In addition, in the Fig. 3 and Fig. 4 the engagement element 19, in which the bolt 9 in the in Fig. 4 shown locked position of door 1 mechanical intervention is shown more clearly. Fig. 3 and Fig. 4, the locking device 5 has a first switching device 25 with a second switching element in the form of a permanent magnet 21 arranged on the connecting element 11 and a first switching element in the form of a reed contact 23 arranged in the region of the door frame 17.

[0043] As can be seen particularly from a comparison of the Fig. 3 and Fig. 4, a movement of the latch 9 results in the relative position of the magnet 21 and the reed contact 23 in the unlocked state of the cooking chamber door 1, as shown in Fig. 3, is larger than in the locked state as shown in Fig. 4. If the permanent magnet 21 or the second switching element is in the position shown in Fig. 3, the reed contact 23 is not triggered, thus interrupting the energy supply to a consumer not shown, such as a microwave generator.

[0044] However, if the bolt 9 is moved into the Fig. 4, the distance between the permanent magnet 21 and the reed contact 23 is minimal, so that the reed contact 23 triggers and releases the energy supply for the consumer, in particular the microwave generator.

[0045] As in particular the Fig. 1 and Fig. 2, the cooking appliance according to the invention has two switching devices 25 and 25'. The first switching device 25 comprises the permanent magnet 21 and the reed contact 23, while the second switching device 25' has a first switching element in the form of a reed switch, and a second switching element in the form of a permanent magnet 21', wherein the reed switch in the locked state of the cooking chamber door 1 at the position indicated by 23' in Fig. 1 is arranged adjacent to the permanent magnet 21'.

[0046] In other words, the monitoring of the position of the locking device 5, in particular of the bolt 9, is implemented redundantly. Thus, a movement of the connecting element 11 leads to a shift in the position of the permanent magnet 21 or permanent magnet 21' and thus to an actuation of the first switching device 25 or the second switching device 25'. The switching devices 25, 25' thus enable detection of the unlocked or locked state of the locking device or door 1.

[0047] In addition to the switching device with switching devices 25, 25', the Fig. 1 to 4, the cooking chamber door 1 further comprises a detection device with two detection devices 26, 26'. The detection devices 26, 26' comprise a second detection element in the form of permanent magnets 27 and 27', respectively. These are arranged in the cooking chamber door 1 in such a way that they are arranged adjacent to first detection elements in the form of reed contacts 29, 29' when the cooking chamber door 1 is in a closed position. As in particular Fig. 3 and Fig. 4, the permanent magnet 27, 27' is arranged in the region of the door leaf that is spaced from the connecting element or locking device. The second detection element is thus arranged in a fixed position in the door leaf of the cooking chamber door 1. This enables the closed position of the cooking chamber door 1 to be detected by means of the detection device 26, 26', regardless of whether the cooking chamber door 1 is in a locked or unlocked state. In any other position of the cooking chamber door 1, the reed contact 29, 29' is not triggered, and it is thus detected that the cooking chamber door 1 is outside the closed position.

[0048] The detection devices 26, 26' are thus also designed redundantly in order to achieve reliable detection of the closed position of the cooking chamber door 1. Fig. 5 is a cross-sectional view of the cooking chamber door 1 along the direction B in Fig. 1 shown.

[0049] Finally, in Fig. 6 shows an exemplary interconnection of the previously described switching devices and detection devices or switching elements and detection elements.

[0050] How Fig. As can be seen from Figure 6, the reed contact 23 of the first switching device 25 and the reed contact 29 of the first detection device 26 are essentially connected in series, and the reed contact 23' of the second switching device 25' is connected in series with the reed contact 29' of the second detection device 26'. The input of the first reed contact 23 is connected to an electrical phase L1, while the input of the reed contact 23' of the second switching device 25' is connected to an electrical ground.

[0051] Through the Fig. The circuit shown in Figure 6 ensures that a voltage is only applied between the outputs A1 and A2 when both the switching devices 25, 25' and the detection devices 26, 26' are closed. In all other switching states, no voltage is applied between the outputs A1 and A2. A first consumer connected to the outputs A1 and A2 is therefore only supplied with energy when both a closed position of the cooking chamber door is redundantly detected via the reed contacts 29, 29' of the detection device 26, 26' and, at the same time, a locked state of the cooking chamber door 1 is detected by means of the reed contacts 23, 23' of the switching devices 25, 25'. Fig. 6 shows the open, unlocked position of the cooking chamber door 1, since both the reed contacts 23, 23' and 29, 29' are open.

[0052] In an alternative, not shown embodiment of the circuitry, it can also be provided that a second consumer is switched by means of the detection device 26, 26', for example a ventilation device, so that as soon as the door is closed, regardless of whether it is locked or unlocked, the ventilation device is operated in order to achieve a homogenization of the cooking chamber atmosphere within the cooking chamber.

[0053] The features presented in the above description, in the claims and in the figures may be essential to the invention in its various embodiments, both individually and in any combination. List of reference symbols 1 cooking chamber door 3 hinges 5 Locking device 7 Door handle 9 bars 11 Connecting element 13 Arrow 15 Arrow 17 door frames 19 engagement element 21, 21' permanent magnet, switching element 23, 23' reed contact, switching element 25, 25' switching device 26, 26' detection device 27, 27' permanent magnet, detection element 29, 29' reed contact, detection element A1, A2 output R1 resistor A section B direction

Claims

[1] Cooking appliance, comprising at least one cooking chamber with at least one cooking chamber opening which can be closed by means of at least one cooking chamber door (1) and at least one locking device (5) by means of which the cooking chamber door (1) can be locked, wherein the locking device (5) interacts with at least one switching device for controlling a power supply to at least one first consumer of the cooking appliance depending on a position of the locking device (5), wherein the cooking chamber door (1) has at least one open position in which the cooking chamber is accessible through the cooking chamber opening, and at least one closed position in which the cooking chamber opening is closed, characterized bythat the cooking chamber door (1) has at least one ventilation position in which at least a cooking chamber atmosphere located in the cooking chamber can escape between the cooking chamber door (1) and the cooking chamber opening, and the switching device comprises at least two independently operating switching devices (25, 25'). [2] Cooking appliance according to claim 1, characterized by that in the ventilation position, the cooking chamber atmosphere in the cooking chamber can escape through a gap between, on the one hand, at least one sealing device and, on the other hand, the cooking chamber door (1) and / or the cooking chamber opening and / or between at least two sealing devices. [3] Cooking appliance according to claim 1 or 2, characterized bythat the locking device (5) has at least one locking position and at least one unlocking position, wherein a transition from the unlocking position to the locking position is preferably prevented in the open position and / or the ventilation position of the cooking chamber door (1) and / or is only possible in the closed position. [4] Cooking appliance according to one of the preceding claims, characterized bythat the locking device (5) comprises at least one manipulation element (7), such as at least one door handle (7), by means of which the locking device (5) can be transferred at least into the locking position and / or the unlocking position and / or the cooking chamber door (1) can be moved between at least two different positions, in particular the open position, the closed position and / or the ventilation position, at least one locking element (9), such as a door bolt, which can be brought into engagement with at least one engagement element (19), such as a catch block, and / or at least one connecting element (11) by means of which the manipulation element (7) and the locking element (9) are in mechanical operative connection. [5] Cooking appliance according to claim 4, characterized by that the manipulation element (7) and the locking element (9) are securely connected to one another by means of the connecting element (11). [6] Cooking appliance according to claim 4, characterized by that the manipulation element (7), the connecting element (11) and / or the locking element (9) is / are designed in such a way that a relative movement between the manipulation element (7) and the locking element (9) is possible. [7] Cooking appliance according to one of claims 4 to 6, characterized by that the engagement element (19) is mounted in a stationary manner relative to the cooking chamber opening, the cooking chamber and / or a cooking appliance housing, wherein in particular the cooking chamber door (1) is movable relative to the cooking appliance housing and / or the manipulation element (7), the connecting element (11) and / or the locking element (9) is / are mounted in a movable manner with the cooking chamber door (1), preferably relative to the cooking chamber door (1), in particular between the locking position and the unlocking position. [8] Cooking appliance according to one of the preceding claims, characterized bythat the locking device (5) comprises the switching devices (25, 25') at least in regions. [9] Cooking appliance according to one of the preceding claims, characterized by in that the switching devices (25, 25') each comprise at least one first switching element (23, 23') and at least one second switching element (21, 21'), wherein preferably a switching state of the switching device (25, 25') can be changed depending on a relative position and / or a relative distance of the first switching element (23, 23') and the second switching element (21, 21'), wherein in particular the position and / or the distance is detected without contact, preferably without contact and / or can be detected mechanically, optically, electrically, electromagnetically and / or magnetically. [10] Cooking appliance according to claim 9, characterized bythat the first switching element (23, 23') is arranged in a stationary manner relative to the cooking chamber opening, the housing, the engagement element (19) and / or a door leaf of the cooking chamber door (1) and / or the second switching element (21, 21') is arranged in a stationary manner relative to the locking element (9), the connecting element (11) and / or the manipulation element (7). [11] Cooking appliance according to one of the preceding claims, characterized byat least one detection device with at least one detection device (26, 26'), wherein the at least one position of the cooking chamber door (1), in particular of the door leaf, can be detected by means of the detection device (26, 26'), wherein preferably at least two independently operating detection devices (26, 26') are present and / or the detection device (26, 26') comprises at least one first detection element (29, 29') and at least one second detection element (27, 27'), wherein preferably a switching state of the detection device (26, 26') can be changed depending on a relative position and / or a relative distance of the first detection element (29, 29') and the second detection element (27, 27'), wherein in particular the position and / or the distance is detected in a contactless manner, preferably in a contactless manner and / or is mechanically, optically, electrically, electromagnetically and / or magnetically detectable. [12] Cooking appliance according to claim 11 characterized by that the energy supply to the first consumer can be controlled by means of the detection device and / or the energy supply to at least one second consumer can be controlled by means of the detection device, in particular independently of the switching device. [13] Cooking appliance according to claim 12, characterized by that the first consumer and / or the second consumer comprises at least one microwave generator, at least one steam generator, at least one blower device, at least one heating device, and / or at least one cleaning device. [14] Cooking appliance according to one of the preceding claims, characterized by that a connection of the consumer to an electrical phase can be switched by means of the first switching device (25) and a connection of the consumer to an electrical ground can be switched by means of the second switching device (25'). [15] Cooking appliance according to claim 14, characterized bythat the first switching device (25) and the first detection device (26) are electrically connected in series and / or the second switching device (25') and the second detection device (26') are electrically connected in series. [16] Cooking appliance according to one of claims 11 to 15, characterized in that the first switching element (23, 23') and / or the first detection element (29, 29') comprises at least one magnetic switch, in particular a reed contact, and the second switching element (21, 21') and / or the second detection element (27, 27') comprises at least one magnet, preferably a permanent magnet, the first switching element (23, 23') and / or the first detection element (29, 29') comprises at least one optical switch, in particular a photosensor, and the second switching element (21, 21') and / or the second detection element (27, 27') comprises at least one emission device for light, preferably invisible or visible light. [17] Cooking appliance according to one of claims 11 to 16, characterized by that the first switching element (23, 23'), the second switching element (21, 21'), the first detection element (29, 29') and / or the second detection element (27, 27') comprises at least one manipulation detection device, wherein by means of the manipulation detection device in particular an attempt to trigger the switching device by positioning an element different from the second switching element (21, 21') in the region of the first switching element (23, 23'), an element different from the first switching element (23, 23') in the region of the second switching element (21, 21'), an element different from the second detection element (27, 27') in the region of the first detection element (29, 29') and / or an element different from the first detection element (29, 29') in the region of the second detection element (27, 27'), is recognizable. [18] Cooking appliance according to claim 17, characterized by that the manipulation detection device comprises at least one safety switch, preferably a safety magnetic switch, and / or at least one safety light sensor, wherein the safety switch interrupts the power supply for the first consumer and / or the second consumer upon approach of an element different from the first switching element (23, 23'), second switching element (21, 21'), first detection element (29, 29'), second detection element (27, 27').

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