ACCESSORY FOR A KITCHEN APPLIANCE

Description

[0001] The application relates to an accessory for a kitchen appliance. Furthermore, the application relates to a kitchen appliance and a method.

[0002] Kitchen appliances, for example in the form of food processors, are known from the prior art, which are designed for the at least semi-automatic preparation of food. Such kitchen machines, as well as other kitchen appliances, can comprise at least one accessory, for example a pot and / or a lid of a container arrangement. Examples of non-exhaustive accessories include, in particular, a Varoma, a stirring attachment, a knife cover, a measuring cup, a lid, a pot, a cooking basket, and / or the like. An accessory can be coupled or connected to the kitchen appliance, in particular to the appliance base of the kitchen appliance.

[0003] EP 3 285 627 B1 discloses a kitchen appliance in the form of a mixing system in which an accessory coupled to a device base is identified using RFID (radio frequency identification). For this purpose, EP 3 285 627 B1 provides a passive RFID transponder with a readable accessory identifier in the accessory, and an RFID reading arrangement for reading the RFID transponder (for example, an NFC (nearfield communication) transponder) in the device base. US 2018 255975 A1 and US 2014 203010A1 disclose further prior art kitchen appliances.

[0004] A disadvantage of the prior art is that the accessory can be identified without ensuring that the accessory is properly or correctly positioned on the kitchen appliance, in particular the appliance base. This means that, regardless of the accessory's operating position, the RFID transponder is always read when the RFID transponder is within range of the RFID reader. However, for safe operation of the kitchen appliance, a kitchen appliance function should only be enabled when the accessory has been properly coupled to the appliance base and / or another accessory or has been correctly positioned. In particular, incorrect positioning can result in damage to the kitchen appliance and / or the accessory.

[0005] The application is therefore based on the object of creating a way to operate a kitchen appliance safely and, in particular, to reduce damage to the kitchen appliance and / or the accessory.

[0006] This object is achieved according to a first aspect of the application by a kitchen appliance according to claim 1.

[0007] The accessory is equipped with a readable transponder arrangement. The transponder arrangement comprises an accessory position sensor connected to a transponder, which detects at least one accessory position parameter. This allows correct positioning of the accessory to be detected in a kitchen appliance. This can improve the operational reliability of the kitchen appliance. Damage to the kitchen appliance and / or the accessory due to improper positioning of the accessory on the kitchen appliance can be reduced.

[0008] The accessory according to the application is designed for use in a kitchen appliance. The kitchen appliance is, in particular, a food processor designed for preparing food. The preparation can be carried out at least partially automatically. Preferably, the kitchen appliance can be designed for the at least partially automated preparation of cold and hot dishes.

[0009] The at least one accessory according to the application may preferably be an accessory from the group comprising Blade cover, stirring attachment, lid, lid with additional function, e.g. cutting device for vegetables, pot, measuring cup, cooking basket, and / or Varoma.

[0010] Preferably, a kitchen appliance can comprise a vessel assembly. The vessel assembly can comprise at least one pot and at least one first lid structurally corresponding to the pot. This means, in particular, that a (pot) opening can be closed or covered by the first lid, and the lid can, in particular, be placed over the pot opening.

[0011] According to the application, a pot, also called a cooking pot, is understood to mean, in particular, a fillable vessel or container designed for preparing food, in particular for cooking or boiling hot dishes. Preferably, the pot corresponds (structurally) to a base of the kitchen appliance.

[0012] An accessory may, for example, be made at least partially of plastic, at least partially of metal and / or at least partially of glass.

[0013] According to the application, a lid is understood to mean, in particular, at least one closure and / or covering element with which the opening of the pot can be (completely) closed or covered. The lid can, in turn, have a lid opening, for example, for coupling with another accessory. In variants of the application, the lid can also have additional functions, such as a cutting function.

[0014] According to the application, the lid can be locked to the pot. In particular, the first lid is movable relative to the pot between an unlocked position and a (defined) locked position. In the locked position, the lid or the vessel arrangement is in a (mechanical) locked state. The locking mechanism according to the application is, in particular, a mechanical locking or blocking of the lid.

[0015] At least one further accessory can be arranged in the pot, such as a cutting tool and / or a stirring tool.

[0016] In particular, an accessory according to the application is configured for (direct and / or indirect) positioning on a base of the kitchen appliance. For example, the accessory can be positioned directly on the base of the appliance, in particular coupled thereto. Alternatively, the accessory can be positioned on another accessory, in particular coupled thereto, which is arranged or positioned (directly or indirectly) on the base of the appliance.

[0017] The kitchen appliance comprises a reading arrangement. The reading arrangement comprises a reading controller and at least one reading antenna connectable to the reading controller. The reading arrangement can be at least partially integrated into a device base of the kitchen appliance and / or at least partially integrated into the accessory. In particular, the reading controller (in particular comprising an evaluation module) can be integrated into a device base of the kitchen appliance or into the accessory (e.g., pot). In one embodiment, only the evaluation module can be integrated into the accessory and the remaining reading controller can be integrated into the device base.

[0018] The accessory comprises a transponder arrangement. The transponder arrangement comprises at least one wirelessly or contactlessly readable transponder. The transponder can be read, in particular, by the aforementioned reading arrangement. In particular, the transponder corresponds to the reading arrangement.

[0019] According to the application, the transponder is connected to and / or includes at least one accessory position sensor. The at least one accessory position sensor is configured to detect at least one accessory position parameter of the accessory. In particular, a (current) accessory position parameter or a (current) accessory position parameter value can be measured by the accessory position sensor.

[0020] Preferably, the at least one accessory position parameter can be a transverse axis angle, a longitudinal axis angle and / or a vertical axis angle. A transverse axis is understood to mean, in particular, the body axis that is transverse to the longest extent of a body (e.g., accessory part, device base, etc.). The angle of rotation about this axis is, in particular, the transverse axis angle. A longitudinal axis is understood to mean, in particular, the body axis that corresponds to the direction of the greatest extent of a body (e.g., accessory part, device base, etc.). The angle of rotation about this axis is, in particular, the longitudinal axis angle. A vertical axis is understood to mean, in particular, the body axis that is vertical to the longest extent of a body (e.g., accessory part, device base, etc.). The angle of rotation about this axis is, in particular, the vertical axis angle.

[0021] As already described, the transponder arrangement according to the application comprises the transponder and the at least one accessory position sensor. This allows the at least one detected accessory position parameter to be read out by reading the transponder arrangement. In particular, the at least one accessory position sensor makes the at least one accessory position parameter available to the transponder (at least upon request by the transponder), so that in particular the at least one accessory position parameter can be read out by reading the transponder. In other words, a readable transponder enables the at least one accessory position parameter to be read out. The transponder arrangement is thus configured at least to transmit the at least one detected accessory position parameter to the reading arrangement.

[0022] According to a preferred embodiment of the accessory according to the application, the transponder can be an RFID transponder. An RFID transponder (including, in particular, NFC transponders) can be implemented easily and cost-effectively. Furthermore, an RFID transponder can be read reliably.

[0023] An RFID transponder may include a transponder antenna coil. The transponder antenna coil may be configured to receive a reading field or interrogation field of a reading device.

[0024] Preferably, the transponder can be a passive transponder. Passive means, in particular, that the transponder cannot actively transmit a transmission field, but can only manipulate or encode a received reading field (depending on the information to be transmitted). Passive also means, in particular, that the transponder does not have its own power source (e.g., a battery), but is powered by the reading field or transmission field of the reading antenna.

[0025] As described, the transponder can preferably have a coil as a receiving antenna. A capacitor of the transponder can be charged by induction, similar to a transformer. This energy can be used by the transponder, in particular, to respond to a request contained in the reading field. This allows for a simple and reliable transponder to be provided.

[0026] According to a preferred embodiment of the accessory according to the application, the transponder can be configured to supply the accessory position sensor with electrical energy based on a received reading field of the reading antenna. As already described, the transponder can utilize the energy contained in the reading field. This energy can be made available, at least in part, to the at least one accessory position sensor. In particular, a correspondingly configured capacitor can be arranged in the transponder.

[0027] It is understood that in other variants of the application, the transponder arrangement can also have its own power source, such as a (rechargeable) battery. In this variant, the transponder is then capable of actively transmitting a transmission field or responding to a received reading field or signal.

[0028] According to a further embodiment of the accessory according to the application, the transponder can comprise at least one readable (data) memory. At least one accessory identifier and / or an accessory type identifier can be stored in the memory. An accessory identifier can uniquely identify an accessory throughout the system. An accessory type identifier can uniquely identify a specific accessory type from a plurality of accessory types throughout the system. In one variant of the application, the accessory type identifier can be contained in the accessory identifier. The accessory identifier and / or accessory type identifier can be read out, in particular via the reading antenna, by the reading controller. In particular, the accessory transponder can be configured to respond to the receipt of a reading field with the accessory identifier and / or accessory type identifier. In particular, the readability of the accessory identifier and / or accessory type identifier enables identification of the accessory or the accessory type.

[0029] It is understood that in variants of the application, at least one further piece of data can be stored in the memory and, in particular, can be read out (e.g. at least one permissible and / or impermissible device function of the accessory, etc.).

[0030] Preferably, a specific appliance function of the kitchen appliance can be enabled for a user depending on an identified accessory or accessory type. This means, in particular, that a specific appliance function can only be enabled if at least one specific accessory type is identified. If a different accessory type is identified, this appliance function can be or remain locked. Safety during operation of the kitchen appliance can be improved.

[0031] According to a further embodiment of the accessory according to the application, the transponder can comprise at least one readable (data) memory. At least one piece of calibration information for the accessory position sensor can be stored in the memory. Preferably, the calibration information for the accessory position sensor can be stored in the memory in addition to the accessory identifier and / or accessory type identifier.

[0032] In particular, it has been recognized that production-related variations can occur during the manufacture of an accessory and / or transponder arrangements. Preferably, a factory calibration can be performed, particularly for each accessory (and each kitchen appliance). This allows, for example, production-related variations during the attachment and / or positioning of the accessory position sensor on or in the accessory to be taken into account, particularly when evaluating a read accessory position parameter.

[0033] According to a preferred embodiment of the accessory according to the application, the accessory position sensor can be an acceleration sensor, in particular a 3-axis acceleration sensor. The axes can in particular be the transverse axis, longitudinal axis, and vertical axis. The at least one accessory position parameter can preferably be an inclination angle of the accessory relative to the acceleration due to gravity. For example, the inclination angle of the accessory relative to the acceleration due to gravity can be determined from a detected transverse axis angle, longitudinal axis angle, and / or vertical axis angle. The inclination angle relative to the acceleration due to gravity can then be used particularly advantageously to estimate the correct positioning of the accessory.

[0034] The kitchen appliance comprises at least one accessory as described above. The kitchen appliance comprises a (previously described) reading arrangement comprising a reading controller and at least one reading antenna connectable to the reading controller. The reading arrangement is configured at least to read the accessory position parameter from the transponder arrangement.

[0035] The reading controller is preferably an RFID reading controller. In particular, the reading controller can be an RFID reader (e.g., formed by a microcontroller). The reading antenna is, in particular, an antenna coil. In particular, the antenna coil can be an RFID-based antenna coil. The antenna coil can be formed from copper. It is understood that other electrically conductive materials, in particular metals, can also be used, for example, aluminum or the like. The number of turns of the antenna coil can preferably be between 1 and 10, more preferably between 1 and 5, most preferably in particular 3 or 4.

[0036] Preferably, the kitchen appliance may comprise an appliance base. Furthermore, the kitchen appliance may comprise a vessel assembly. As described, in one embodiment, the vessel assembly may be an accessory and / or comprise an accessory (e.g., a pot or lid).

[0037] The device base and / or the container assembly and / or the accessory may comprise the reading assembly. Preferably, the reading control may be integrated into the device base, for example, into the device control of the device base. However, it is also conceivable for the accessory (e.g., a pot) to comprise the reading control.

[0038] The at least one reading antenna can preferably be arranged in or on the container arrangement, for example, on or in the pot and / or on or in the lid. The at least one reading antenna can also be arranged in the device base. In variants of the application, two or more reading antennas can also be provided.

[0039] The device base can preferably have a pot receptacle corresponding to the pot of the receptacle assembly. When the reading antenna is arranged in or on the receptacle assembly, an electrical connection can be established between a first lower pot contact of the pot and a first base contact of the device base, and an electrical connection can be established between a second lower pot contact of the pot and a second base contact of the device base when the pot is arranged in the pot receptacle.

[0040] The pot receptacle is preferably configured to receive the pot, in particular at least the pot base. The pot receptacle can (structurally) correspond to the pot of the vessel arrangement in such a way that an electrical connection between the first lower pot contact and a first electrical base contact of the device base, and an electrical connection between the second lower pot contact and a second electrical base contact of the device base, is established (only) when the pot is (correctly) arranged in the pot receptacle.

[0041] The reading controller can be electrically connected to the first base contact and the second base contact. The at least one reading antenna can be electrically connected to the lower pot contacts. For example, at least one winding can be integrated into the pot wall (e.g., made of plastic).

[0042] In a preferred embodiment described in more detail below, the reading antenna can be arranged on or in the cover. In this embodiment, the cover can have at least one reading antenna connected to a first cover contact and a second cover contact. The pot can have at least one first pot connection running between a first upper pot contact and the first lower pot contact, and a second pot connection running between a second upper pot contact and the second lower pot contact.

[0043] The first lid contact and the second lid contact may be arranged such that an electrical connection between the first lid contact and the first upper pot contact and an electrical connection between the second lid contact and the second upper pot contact is only established in the locked position of the lid (i.e. when the lid is correctly positioned).

[0044] In other words, in this embodiment, a reading antenna can be arranged in or on the lid, which can only be supplied with electrical energy or receive an antenna signal when the lid is in the locked position. Therefore, only when the lid is in the locked position can the reading antenna emit electromagnetic signals, particularly in the form of a reading field (also called an interrogation field). In other words, a transponder (also called a tag) of a transponder arrangement can only be read by the lid's reading antenna when the lid is (properly) locked to the pot.

[0045] Particularly preferably, the at least one turn of the reading antenna can run along the edge of the lid and / or be bent accordingly. The at least one turn can, for example, be inserted into a lid base body during production and subsequently provided with a cover (preferably made of plastic). The cover can be attached to the lid base body, for example, by ultrasonic welding. A reading antenna can be provided in a simple manner.

[0046] According to a further embodiment of the kitchen appliance according to the application, the reading control can be configured to apply an antenna signal to the reading antenna, so that a reading field or interrogation field is emitted by the reading antenna. The reading control can be configured to provide the antenna signal. In particular, the reading control can generate the antenna signal and apply it to the reading antenna, so that a corresponding reading field is emitted by the reading antenna.

[0047] According to a preferred embodiment of the kitchen appliance according to the application, the reading control can comprise an evaluation module. The evaluation module can be configured to determine an operating position of the accessory based on the read accessory position parameter and an operating position criterion.

[0048] The evaluation module can be integrated in particular in the device base or the accessory part, such as the vessel arrangement.

[0049] An operating position of the accessory is understood to mean, in particular, a proper or correct (direct or indirect) positioning of the accessory on the kitchen appliance, in which, in particular, the accessory can be used or operated as intended. For example, the accessory can be (properly) placed, placed, plugged in, etc. in the operating position. As already described, positioning the accessory on the kitchen appliance comprises positioning a first accessory on another accessory of the kitchen appliance. In one embodiment, the operating position can be a locking position in which the accessory is (mechanically) locked to the kitchen appliance or another accessory (e.g., a lid locked to a pot, as described).

[0050] The evaluation module can be configured to determine whether an accessory is properly positioned or arranged on the kitchen appliance by evaluating the at least one read accessory position parameter. Preferably, the evaluation module can compare the at least one read accessory position parameter (for example, an aforementioned angle, in particular an angle of inclination relative to the acceleration due to gravity) with the operating position criterion.

[0051] The operating position criterion can define when proper or operational positioning exists (or when it does not). For example, the operating position criterion can define an angular range in which proper positioning exists. If the read angle (value) lies within the angular range, the evaluation module can determine that the accessory is properly positioned or arranged on the kitchen appliance. In other words, an operating position can be determined. If the read angle (value) does not lie within the angular range, the evaluation module can determine that the accessory is not properly positioned or arranged on the kitchen appliance. In other words, a non-operating position can be determined.

[0052] Preferably, the kitchen appliance and / or the at least one accessory part incorporates design or structural measures that allow the correct accessory position parameter (i.e., the parameter value that meets the operating position criterion) to be set only in the correct operating position, and in particular within the reading range or detection range of the reading antenna. This can be achieved, for example, by guide elements such as curves, thickened portions, grooves, and / or recesses on the kitchen appliance and / or the at least one accessory part (e.g., an accessory in the form of a mixing attachment must be correctly placed on another accessory in the form of a knife, otherwise the knife will fall over).

[0053] Preferably, the geometric arrangement or position of the accessory position sensor in the accessory can be known to the evaluation module. In one embodiment, the accessory position sensor can always be positioned and aligned the same in every accessory, or at least in every accessory type.

[0054] In a further embodiment of the kitchen appliance according to the application, the reading arrangement can be configured to read at least the accessory identifier and / or the accessory type identifier from the transponder arrangement. The evaluation module can be configured to determine the operating position of the accessory based on the accessory identifier and / or the accessory type identifier.

[0055] Preferably, an accessory type criterion can be predefined and, in particular, stored in the reading controller. The accessory type criterion can be an assignment table in which a (type-specific) operating position criterion can be assigned to each accessory type. Preferably, the respective accessory type can be a respective accessory type identifier.

[0056] The reading controller can read the accessory type identifier. The read accessory type identifier can be compared with the stored accessory type identifiers. If the reading controller, in particular the evaluation module, determines that a stored accessory type identifier is identical to the read accessory type identifier, the operating position criterion assigned to this stored accessory type identifier can be used (for the described comparison). The correct positioning of the respective accessory type can be reliably determined even with different accessory types.

[0057] If at least one piece of calibration information is further stored in the transponder's data memory, the reading arrangement can preferably be configured to read the at least one piece of calibration information. Furthermore, the evaluation module can be configured to correct the at least one read-out accessory position parameter based on the at least one piece of calibration information. The at least one corrected accessory position parameter, such as a corrected inclination angle with respect to gravitational acceleration, can then be evaluated, in particular compared, with the operating position criterion, for example. The reliability of the evaluation can be further improved.

[0058] The kitchen appliance (in particular the appliance base) comprises at least one kitchen appliance position sensor. The kitchen appliance position sensor is configured to detect a kitchen appliance position parameter. The kitchen appliance position sensor can, in particular, be designed like an accessory position sensor. Preferably, the kitchen appliance position sensor can be an acceleration sensor, in particular a 3-axis acceleration sensor. The axes can, in particular, be the transverse axis, longitudinal axis, and vertical axis. The at least one accessory position parameter can preferably be an angle of inclination of the kitchen appliance (in particular the appliance base) relative to the acceleration due to gravity. For example, the angle of inclination of the kitchen appliance (in particular the appliance base) relative to the acceleration due to gravity can be determined from a detected transverse axis angle, longitudinal axis angle, and / or vertical axis angle.The angle of inclination in relation to the acceleration due to gravity can then be used particularly advantageously to estimate the correct positioning of the kitchen appliance (especially the appliance base).

[0059] The operating position criterion can preferably be based on the detected kitchen appliance position parameter. For example, the at least one currently detected kitchen appliance position parameter value can form the operating position criterion. It is understood that a tolerance range or

[0060] Angular range around the currently recorded kitchen appliance position parameter value can be provided.

[0061] If the accessory position sensor and the kitchen appliance position sensor are positioned or aligned identically, the evaluation module can compare the read accessory position parameter value with the kitchen appliance position parameter value or the specified tolerance range. In particular, the evaluation module can be configured to compare the read accessory position parameter (in particular the specified accessory inclination angle in relation to gravitational acceleration) with the kitchen appliance position parameter (in particular the kitchen appliance inclination angle in relation to gravitational acceleration). The evaluation module can be configured to determine the correct positioning or operating position of the accessory based on the comparison result. If the read angle (value) lies within the specified tolerance or angle range, the evaluation module can determine that the accessory is correctly positioned or arranged on the kitchen appliance, so that it is, in particular, ready for operation.In other words, an operating position can be determined. If the read angle (value) is not within the tolerance or angle range, the evaluation module can determine that the accessory is not properly positioned or arranged on the kitchen appliance. In particular, the accessory is not operational. In other words, a non-operating position can be determined.

[0062] In particular, the kitchen appliance position sensor allows any inclination of the entire system or kitchen appliance, caused, for example, by a tilted kitchen countertop or the like, to be taken into account in the evaluation. The reliability of the evaluation can be further improved.

[0063] If the accessory position sensor and the kitchen appliance position sensor are not positioned or aligned identically for an accessory type, this can happen, particularly in the

[0064] The different orientation can be defined by the accessory type criterion. In particular, one of the parameters can be standardized using the accessory type criterion. This allows the accessory type criterion to be taken into account in the comparison by first reading the accessory type identifier and then determining the corresponding accessory type criterion based on the read accessory type identifier (as described).

[0065] According to a further embodiment of the kitchen appliance according to the application, the reading control can comprise at least one (data) memory. At least one piece of calibration information of the kitchen appliance position sensor can be stored in the memory. It has been recognized, in particular, that production-related fluctuations can occur during the manufacture of a kitchen appliance. Preferably, a factory calibration can be carried out, in particular, for each kitchen appliance. This allows, for example, production-related fluctuations when attaching the kitchen appliance position sensor to or in the kitchen appliance (in particular the appliance base) to be taken into account, in particular when evaluating a read accessory position parameter and the kitchen appliance position parameter value or the aforementioned tolerance range.

[0066] Another aspect of the application is a method for determining the operating position of a previously described accessory. The method comprises Reading, by a reading arrangement of a kitchen appliance, the accessory position parameter of the accessory detected by the accessory position sensor, and determining, by an evaluation module of the reading arrangement, an operating position of the accessory based on the read accessory position parameter and an operating position criterion.

[0067] The reading arrangement can, in particular, be a previously described reading arrangement. Preferably, a device base of a previously described kitchen appliance can comprise the reading control.

[0068] The method can be used to determine the operating position of a previously described accessory on a previously described kitchen appliance. Preferably, the method can also be used to identify the accessory type, as previously described.

[0069] A module, an arrangement, or the like can be implemented at least partially by hardware elements and / or software elements. In principle, data can be transmitted directly or first collected and temporarily stored, for example, to be transmitted together at specific times. Furthermore, terms such as "top," "upper," "bottom," "below," etc., refer to the direction running vertically to a horizontal plane and to a vessel arrangement and / or kitchen appliance placed on a horizontal surface. Unless otherwise stated, expressions such as "first," "second," etc., serve merely to distinguish between two elements and do not indicate a sequence.

[0070] The features of the vessel arrangements, kitchen appliances, and methods can be freely combined with one another. In particular, features of the description and / or the dependent claims, even if they completely or partially circumvent features of the independent claims, can be independently inventive, either alone or freely combined with one another.

[0071] There are now numerous possibilities for designing and further developing the accessory, kitchen appliance, and method according to the application. Reference is made, on the one hand, to the claims subordinate to the independent patent claims and, on the other hand, to the description of exemplary embodiments in conjunction with the drawing. The drawing shows: Fig. 1 is a schematic view of an embodiment of an accessory according to the present application, Fig. 2 is a schematic view of an embodiment of a kitchen appliance according to the present application, Fig. 3 is a schematic view of another embodiment of a kitchen appliance according to the present application, Fig. 4a is a schematic view of an embodiment of a pot of a kitchen appliance according to the present application, Fig. 4b is an enlarged view of an upper pot contact of the pot according to Figure 4a, Fig. 4c is a schematic view of an embodiment of an exemplary accessory in the form of a lid of a kitchen appliance according to the present application, Fig. 5a is a schematic view of an embodiment of an accessory according to the present application in an operating position, Fig. 5b is a schematic view of an embodiment of an accessory according to the present application in a non-operating position, Fig. 6 is a schematic view of a further embodiment of a kitchen appliance according to the present application, and Fig. 7 is a diagram of an embodiment of a method according to the present application.

[0072] In the following, similar reference numerals are used for similar elements.

[0073] The Figure 1shows a schematic view of an embodiment of an accessory 100 for a kitchen appliance (not shown). The kitchen appliance is, in particular, a food processor configured for the at least partially automated preparation of food. As will be described in more detail below, the kitchen appliance comprises a reading arrangement with a reading controller and at least one reading antenna connectable to the reading controller.

[0074] The accessory 100 is, for example, a Varoma, stirring attachment, blade cover, measuring cup, lid, cooking basket, or the like. The accessory 100 can be coupled directly or indirectly to the kitchen appliance.

[0075] In order to be able to detect, in particular, a correct positioning of the accessory 100 on or to the kitchen appliance, i.e., in particular, to be able to detect the operating position of the accessory 100, the accessory 100 comprises, according to the application, a transponder arrangement 102.

[0076] The transponder arrangement 102 can be read, in particular, by the reading antenna at least in the operating position of the accessory 100. The transponder arrangement 102 comprises a transponder 104 and an accessory position sensor 108 coupled to the transponder 104. The accessory position sensor 108 is preferably an acceleration sensor 108. The accessory position sensor 108 is configured to detect at least one accessory position parameter (e.g., vertical axis angle, transverse axis angle, and / or longitudinal axis angle) of the accessory 100. The accessory position sensor 108 can preferably be configured to detect the inclination angle of the accessory 100 in relation to the acceleration due to gravity.

[0077] The transponder 104 is preferably an RFID transponder 104. In particular, the accessory position sensor 108 can provide the (instantaneously) detected accessory position parameter or value to the transponder 104. In the case of a passive transponder 104, the accessory position sensor 108 can, for example, be activated by the transponder 104 supplying the accessory position sensor 108 with energy based on the received reading field of the reading antenna. The accessory position sensor 108 can then provide the (instantaneously) detected accessory position parameter or value to the transponder 104. This is subsequently transmitted by the transponder 104 to the reading arrangement. In particular, the transponder 104 can encode or manipulate the reading field according to the at least one (instantaneously) detected accessory position parameter. This can be decoded by the reading controller (in particular an RFID reader).

[0078] Optionally, the transponder 104 can comprise at least one readable memory 101. As described, at least one accessory identifier (such as a serial number or a Universally Unique Identifier (UUID)) and / or origin information (such as manufacturer identity, time of manufacture, place of manufacture, and / or authentication information) and / or an accessory type identifier and / or calibration information of the accessory position sensor 108 can be stored in the memory 101. This could be stored before distribution, during or at the end of production, or during a dedicated calibration step. Corresponding data can be read out, in particular, by the reading arrangement in addition to the (currently) detected accessory position parameter.

[0079] The Figure 2shows a schematic view of an embodiment of a kitchen appliance 230 according to the present application. The kitchen appliance 230 comprises an appliance base 232, a pot 216, and a lid 200 as an accessory according to the application. It is understood that the pot is also an accessory and, in variants of the application, can have a transponder arrangement according to the application.

[0080] The pot 216 and the lid 200 can, in particular, form a vessel arrangement of the kitchen appliance 230. The pot 216 has a circumferential pot wall and a pot base.

[0081] The lid 200 is configured to close an opening of the pot 216. This closed state of the vessel arrangement is in the Figure 2 In particular, the cover 200 is located in the Figure 1in the locked position. This means, in particular, that the lid 200 is (correctly) mechanically locked to the pot 216, i.e., the vessel arrangement is in the locked state. In the present case, this is equivalent to the accessory 200 being in the operating position, i.e., positioned or arranged on the kitchen appliance 230 in a ready-to-use manner.

[0082] In particular, the lid 200 is movable relative to the pot 216 between an unlocked position and a (defined) locked position. The locking mechanism can be, for example, a bayonet lock or a similar mechanical lock.

[0083] The illustrated kitchen appliance 230 comprises an appliance base 232 with a pot receptacle 234. The pot receptacle 234 is configured to receive the pot 216, in particular at least the pot base. As can be seen, the pot receptacle 234 corresponds to the pot 216 of the vessel arrangement in such a way that an electrical connection is established between a first lower electrical pot contact 220 and a first electrical base contact 236 of the appliance base 232 and an electrical connection is established between a second lower electrical pot contact 222 and a second electrical base contact 238 of the appliance base 232 when the pot 216 is (correctly) arranged in the pot receptacle 232.

[0084] The kitchen appliance 230 comprises a reading arrangement 221. The reading arrangement 221 comprises a reading controller 226, in particular an RFID reader, and a reading antenna 206, in particular an antenna coil. In the present embodiment, the reading controller 226 is connected to the first base contact 236 and the second base contact 238 via an optional filter and matching network 240. The reading antenna 206 is presently connected to the first lower pot contact 220 and the second lower pot contact 222.

[0085] When the pot 216 is arranged in the pot receptacle 234 as shown, the reading controller 226 can apply an antenna signal to the reading antenna 206 so that the reading antenna 206 emits a reading field.

[0086] The accessory part 200 in the form of the cover 200 comprises a transponder arrangement 202. The transponder arrangement 202 can in particular be designed like the transponder arrangement according to Figure 1be formed so that in order to avoid repetition, the explanations on the Figure 1 is referred to.

[0087] The reading arrangement 221 is particularly configured to read the transponder arrangement 202.

[0088] The Figure 3 shows a schematic view of another embodiment of a kitchen appliance 330 according to the present application. To avoid repetition, only the differences from the previous embodiments are described below, and otherwise reference is made to the previous explanations. In particular, an accessory part has been omitted for the sake of clarity.

[0089] The reading controller 326 of the reading arrangement 321 here comprises an evaluation module 370 and a kitchen appliance position sensor 372. The kitchen appliance position sensor 372 can be configured to detect a kitchen appliance position parameter. The kitchen appliance position sensor 372 can preferably be an acceleration sensor, in particular a 3-axis acceleration sensor. The axes can in particular be the transverse axis, longitudinal axis, and vertical axis. The at least one accessory position parameter can preferably be a (current) angle of inclination of the kitchen appliance 330 (in particular the appliance base 332) with respect to the acceleration due to gravity. For example, the angle of inclination of the kitchen appliance 330 (in particular the appliance base 332) with respect to the acceleration due to gravity can be determined from a detected transverse axis angle, longitudinal axis angle, and / or vertical axis angle.

[0090] The evaluation module 370 can be configured to determine whether the accessory comprising the transponder arrangement is properly positioned or arranged on the kitchen appliance 330. For this purpose, at least one accessory position parameter can be read from the transponder arrangement and, in particular, the at least one read accessory position parameter can be evaluated.

[0091] Preferably, the evaluation module 370 can compare the at least one read accessory position parameter (for example, an aforementioned angle, in particular an angle of inclination relative to the acceleration due to gravity) with the operating position criterion. The operating position criterion can define when proper positioning is present (or when not). For example, the operating position criterion can define a corresponding angular range. The angular range can be based in particular on the at least one kitchen appliance position parameter (e.g., the aforementioned angle of inclination). For example, the angular range can be a tolerance range around the current angle of inclination.

[0092] If the read angle (value) is within the angular range, the evaluation module 370 can determine that the accessory is properly positioned or arranged on the kitchen appliance 330. If the read angle (value) is not within the angular range, the evaluation module 370 can determine that the accessory is not properly positioned or arranged on the kitchen appliance 330.

[0093] As already described, the evaluation module 370 can additionally use further read data in the evaluation, such as an accessory identifier (such as a serial number or a Universally Unique Identifier (UUID)) and / or origin information (such as manufacturer identity, time of manufacture, place of manufacture and / or authentication information) and / or an accessory type identifier and / or calibration information of the accessory and / or calibration information of the kitchen appliance 330, in particular of the appliance base 332.

[0094] The Figure 4a shows a schematic side view of an embodiment of a pot 416 of a kitchen appliance according to the present application and the Figure 4c a schematic plan view of an embodiment of a lid 400 of the kitchen appliance according to the present application, structurally corresponding to the pot 416. The Figure 4b shows an enlarged section, in particular a top view, of the pot 416 according to Figure 4a .

[0095] The pot 416 is preferably formed partly from metal and partly from plastic. In particular, a portion 442 can be formed from plastic. This portion 442 can also form the handle and, in particular, can have an at least partially, preferably completely, annular portion 443 arranged on the pot rim 403.

[0096] In this case, a first upper electrical pot contact 412 is arranged on the upper pot edge 403. A second upper electrical pot contact (not shown) is preferably arranged on the opposite side of the upper pot edge 403.

[0097] The first electrical pot connection 418 extends from the first upper electrical pot contact 412, in particular through the section 442, to the first lower pot contact 420. In particular, the first pot connection 418 can be integrated into the plastic section 442. The first lower pot contact 420 is arranged in particular in or on the pot base. The further pot connection (not shown) can be designed accordingly.

[0098] The upper first pot contact 412 and the second pot contact are preferably embedded in the annular plastic section 443. This section 443 preferably comprises part of the locking mechanism of the vessel assembly. In particular, the section 443 can have contours for locking the lid 400 to the pot 416 in the defined locking position.

[0099] As the top view of the corresponding cover 400 in Figure 4c As can be seen, a first cover contact 411 and a second cover contact 413 are arranged on the cover 400, in particular on the outer cover edge 405.

[0100] In the present case, the reading antenna 406 of the reading arrangement 421 of the kitchen appliance is, in particular, an antenna coil 406. In particular, the antenna coil 406 can be formed by at least one winding 409, preferably a plurality of windings 409, as shown. The at least one winding 409 can, in particular, be formed from a metal, preferably from copper.

[0101] As from the Figure 4c As can be seen, the at least one turn 409 runs in particular along the cover edge 405 or in the vicinity of the cover edge 405 from the first cover contact 411 to the second cover contact 413. The second cover contact 413 is located in particular on a side of the cover edge 405 opposite the first cover contact 411.

[0102] The at least one winding 409 is preferably inserted into the lid base body during production and then provided with a cover (not shown) (preferably made of plastic), which can be fastened to the lid base body, for example, by ultrasonic welding.

[0103] Preferably, the first lid contact 411 and the second lid contact 413 can be arranged on the lid 40 and relative to the upper pot contacts 412 such that an electrical connection between the first lid contact 411 and the first upper pot contact 412 and an electrical connection between the second lid contact 410 and the second upper pot contact are only established in the locked position of the lid 400. In other words, an antenna signal can only be applied to the reading antenna 406 by the reading controller when the lid 400 is in the locked position. Only in the locked position is the circuit closed.

[0104] In the present embodiment, the respective connections between the lid contact and pot contact are contact-type connections.

[0105] In the present embodiment, the cover contacts 411, 413 and the upper pot contacts 412 are formed as exposed electrical contacts 411, 412, 413. Preferably, the cover contacts 411, 413 have a first longitudinal extension in a first direction, and the respective associated upper pot contact 412 has a second longitudinal extension in a second direction. As can be seen, an angle of between 10° and 90° exists between the first and second directions (which are in particular in the same plane), in this case in particular approximately 90°.

[0106] When the cover 400 is moved from the unlocked position to the locked position (which can be done, for example, by rotating the cover), the respective contacts 411, 412, 413 slide off each other or contact each other. This prevents a deterioration of the contact resistance at the respective contacts 411, 412, 413, since any contaminants adhering to the contacts 411, 412, 413 are scraped off.

[0107] In addition, a backing 444 with an elastic material (e.g. silicone) can be provided on the cover contact 411, 413 or pot contact 412.

[0108] Preferably, the cover 400 further comprises a transponder assembly 402 as an accessory. In other words, in a preferred embodiment, the transponder assembly 402 and the reading antenna 406 of the reading assembly 421 can be arranged in one accessory.

[0109] The transponder 404 is arranged within the range of the antenna coil 406. In particular, the transponder 408 is surrounded by at least one winding 409. In In one embodiment there may be 3 or 4 turns.

[0110] The transponder connected to a previously described accessory position sensor 408 has a second antenna coil 425. For example, the transponder arrangement 402 can be adhesively bonded. The transponder arrangement 402, in particular the antenna coil 425, can be covered by a cover (not shown), for example, made of plastic.

[0111] Instead of a respective contact-based electrical connection, a contactless electrical connection can generally also be provided between a lid contact and a pot contact.

[0112] The first cover contact can be formed as a first cover surface element (e.g. by a film made of an electrically conductive material, for example a metal foil) and the second cover contact can be formed as a second cover surface element (e.g. by a film made of an electrically conductive material, for example a metal foil).

[0113] The first upper pot contact can be formed as a first pot surface element (e.g. by a foil made of an electrically conductive material, for example a metal foil) and the second upper pot contact (e.g. by a foil made of an electrically conductive material, for example a metal foil) can be formed as a second pot surface element.

[0114] In a locked position of the cover, the first cover surface element and the first pot surface element can form a first coupling capacitor. The second cover surface element and the second pot surface element can form a second coupling capacitor.

[0115] In particular, the aforementioned surface elements form a respective coupling capacitor only when the cover is in the locked position. In other words, the antenna signal provided by the reading controller can only be transmitted to the reading antenna (e.g., a (schematically indicated) antenna coil) via the aforementioned coupling capacitors in the locked position.

[0116] The dielectric of the respective coupling capacitor is determined in particular by air and / or the plastic used.

[0117] Finally, it should be noted that reference numeral 450 designates the vertical axis of the accessory 400, reference numeral 452 designates the longitudinal axis of the accessory 400, and reference numeral 454 designates the transverse axis of the accessory 400.

[0118] The Figure 5a shows a schematic view of an embodiment of an accessory 500.1 according to the present application in an operating position and the Figure 5b (compared to Figure 5a ) shows a schematic view of an embodiment of the accessory part 500.1 in a non-operating position. To avoid repetition, only the differences from the previous embodiments are described below, and otherwise reference is made to the previous explanations. In particular, details (e.g., transponder arrangement) have been omitted for the sake of clarity.

[0119] Again Figure 5aAs can be seen, the accessory 500.1 is linked to the kitchen appliance 530 and is ready for operation. In this case, the accessory 500.1 is coupled or connected to the lid 500.2 of the kitchen appliance 530. In other words, the accessory 500.1 is in the operating position.

[0120] Pot 516 and lid 500.2 can, for example, be used as pot and lid of the Figure 4 be educated.

[0121] In this case, the evaluation module of a reading arrangement will determine that, for example, the detected angle of inclination in relation to the gravitational acceleration of the accessory 500.1 satisfies the operating position criterion. For example, the operating position criterion can be a detected angle of inclination in relation to the gravitational acceleration of the kitchen appliance 530 (or a tolerance range around this angle of inclination). The operating position criterion is met in particular when the angle of inclination in relation to the gravitational acceleration of the accessory 500.1 essentially corresponds to the angle of inclination in relation to the gravitational acceleration of the kitchen appliance 500.1, i.e., in particular, lies within the angle range or tolerance range. This means, in particular, that the angle of inclination between the two sensors (within a tolerance range) is equal to zero.

[0122] Additionally, an accessory type criterion and, if applicable, calibration information can be taken into account. In particular, at least one of the inclination angles can be corrected or adjusted using the accessory type criterion and / or calibration information.

[0123] In particular, the evaluation module can therefore determine the operating position of the accessory part 500.1 based on the read-out accessory position parameter and an operating position criterion.

[0124] Again Figure 5bAs can be seen, the accessory 500.1 is not positioned correctly or in an operational manner on the kitchen appliance 530. Rather, the accessory 500.1 lies at an angle in the edge region of the lid 500.2 and thus due to the design and / or structural measures taken on the accessory 500.1 and / or the additional accessory 500.2. The accessory 500.1 is therefore not coupled to the lid 500.2 of the kitchen appliance 530 or is not positioned correctly. In other words, the accessory 500.1 is in a non-operating position. Proper operation is not possible in this position, in particular.

[0125] In this case, the evaluation module of a reading arrangement will determine that, for example, the detected angle of inclination relative to the acceleration due to gravity of the accessory 500.1 does not meet the operating position criterion. For example, the operating position criterion can be a detected angle of inclination relative to the acceleration due to gravity of the kitchen appliance 530 (or a tolerance range around this angle of inclination).

[0126] The operating position criterion is not met in particular if the angle of inclination in relation to the acceleration due to gravity of the accessory part 500.1 does not essentially correspond to the angle of inclination in relation to the acceleration due to gravity of the kitchen appliance 500.1, i.e. in particular if it lies outside the angle range or tolerance range.

[0127] Additionally, an accessory type criterion and, if applicable, calibration information can be taken into account. In particular, at least one of the inclination angles can be corrected or adjusted using the accessory type criterion and / or calibration information.

[0128] In particular, the evaluation module can therefore determine the non-operating position of the accessory part 500.1 based on the read-out accessory position parameter and an operating position criterion.

[0129] The Figure 6 shows a schematic view of another embodiment of a kitchen appliance 630 according to the present application. To avoid repetition, only the differences from the previous embodiments are described below, and otherwise reference is made to the previous explanations.

[0130] As can be seen, the appliance base 632 has a tool drive 660. The tool drive 660 is configured to drive or operate an (accessory in the form of) a kitchen appliance tool 662, which can be located in particular in the pot 616. A cutting tool 662 is shown as an example of the kitchen appliance tool 662. Furthermore, the kitchen base can comprise a control device that controls and monitors the heater integrated in the pot 602.

[0131] In the present case, an accessory 600.1 in the form of a stirring attachment 600.1 is positioned on or on the kitchen appliance tool 662. As shown, the accessory 600.1 is correctly positioned or, in the present case, coupled to the kitchen appliance tool 662 (and thus to the kitchen appliance 630). In particular, the illustrated accessory 600.1 is in an operating position.

[0132] As can be seen, the kitchen appliance 630 comprises a further accessory 600.2 in the form of a lid 600.2. Pot 616 and lid 600.2 can, for example, correspond to the pot and lid of the Figure 4a and 4b be educated.

[0133] In the present case, the reading controller 626 comprises, in particular, an evaluation module 670 and a kitchen appliance position sensor 672. The evaluation module 670 is, in particular, configured to detect or determine the operating position or an operating state of the accessories 600.1, 600.2 based on the data read from the transponder arrangements 602.1, 602.2 (at least the respective currently detected accessory position parameters).

[0134] For example, the lid 600.2 can be moved into the locked position by a user. Once the lid 600.2 is in the locked position, an electrical connection is established between the first lid contact 611 and the first upper pot contact 612, and an electrical connection is established between the second lid contact 613 and the second upper pot contact 614. Via the established connections, an antenna signal is applied by the reading controller 626 to the reading antenna 606, so that, in particular, a reading field is generated and transmitted.

[0135] The transponders 604.1, 604.2 arranged within range receive the reading field and, in particular, extract the instructions contained therein. Based on the instructions, the respective transponder 604.1, 604.2 generates a response. For example, the respective transponder 604.1, 604.2 outputs the respective currently detected accessory position parameters and, optionally, the respective stored data, such as an accessory identifier and / or origin information and / or an accessory type identifier and / or calibration information of the respective accessory position sensor 608.1, 608.2. In particular, the respective transponder 604.1, 604.2 influences the reading field accordingly. This can be detected by the reading controller 626, so that the aforementioned data is read out.

[0136] In the manner described above, an operating position or a non-operating position of the accessories 600.1, 600.2 can be determined.

[0137] Furthermore, in the present case, the device base 632 comprises an enabling module 674. The enabling module 674 is configured, in particular, to enable at least one device function, in particular depending on the accessory type of the at least one accessory 600.1, 600.2 (properly) positioned on the device base 632 and / or another accessory. The enabling module 674 can, in particular, be communicatively connected to the evaluation module 670. If no properly positioned accessory is detected, the at least one device function can remain blocked.

[0138] Preferably, the evaluation module 670 can additionally be configured to determine the accessory type based on the read data, in particular the accessory type identifier and a stored accessory type criterion. Preferably, the accessory type criterion can be a previously described assignment table. In particular, the assignment table can additionally store, for each accessory type, the at least one device function permitted for this accessory type.

[0139] Exemplary and non-exhaustive kitchen appliance functions or appliance functions are a first cutting function with a first maximum permissible target speed and / or target torque, a further cutting function with a second maximum permissible target speed and / or target torque (different from the first maximum permissible target speed and / or target torque), a first stirring function with a first maximum permissible target speed and / or target torque, a further stirring function with a second maximum permissible target speed and / or target torque (different from the first maximum permissible target speed and / or target torque), a first motor direction of rotation, a second opposite motor direction of rotation, a first target temperature (or heating output) and / or a first target temperature range (orheating power range) of a heater integrated in the feed receiving element, a second set temperature (different from the first set temperature) and / or a second set temperature range (different from the first set temperature range) of a heater integrated in the feed receiving element, control programs and / or control program set parameters for certain operations, etc.

[0140] In particular, after determining the accessory type of the at least one arranged accessory part 600.1, 600.2, the at least one device function permitted for this accessory type can be released by the release module 674. The accessory type and optionally the permitted device function can be determined in particular by comparing the read accessory type identifier with the accessory type identifiers stored in the assignment table.

[0141] If the permissible device function includes a maximum permissible drive target parameter value, enabling a device function may include, in particular, limiting, for example by the enabling module 674, the operation of the tool drive 660 to the drive target parameter value stored for this accessory type (e.g., a maximum permissible target speed and / or a maximum permissible torque).

[0142] Optionally, the kitchen appliance 630 can have a (visual) indicator 666, for example, a display. The indicator 666 can be configured to display the identified accessory type. Optionally, an error message (for example, if an operating position or a coupling state was detected, but no accessory type could be determined, or if a non-operating position or a non-coupling state was detected) and / or an advisory message (for example, a cleaning request) can be displayed.

[0143] The functionality of a kitchen appliance, such as the kitchen appliance 630, is explained in more detail below with the help of the Figure 7 described. The Figure 7 shows a diagram of an embodiment of a method according to the present application. The method is used to detect or determine the operating position of an accessory.

[0144] In a step 701, the accessory position parameter of the accessory detected by the accessory position sensor is read out by a reading arrangement of the kitchen appliance, as already described.

[0145] In a further step 702, an evaluation module of the reading arrangement determines an operating position of the accessory based on the read-out accessory position parameter and an operating position criterion. Reference symbol list

[0146] 100, 200, 400, 500, 600 Accessory 101 Memory 102, 202, 402, 602 Transponder arrangement 403 Pot rim 104, 204, 404, 604 Transponder 405 Lid rim 106, 206, 306, 406, 606 Reading antenna 108, 208, 408, 608 Accessory position sensor 409 Winding 411, 611 First lid contact 412, 612 First upper pot contact 413, 613 Second lid contact 614 Second upper pot contact 216, 416, 516, 616 Pot 418, 618 First pot connection 619 Second pot connection 220, 420, 620 First lower pot contact 221, 321, 421, 621 Reading arrangement 622 Second lower pot contact 425 Antenna coil 226, 326, 626 Reading control 230, 330, 530, 630 Kitchen appliance 232, 332, 632 Appliance base 234, 634 Pot holder 236, 636 First base contact 238, 638 Second base contact 240, 640 Filter and matching network 442 Pot section 443 Annular section of the pot section 444 Backing 450 Vertical axis 452 Longitudinal axis 454 Transverse axis 660 Tool drive 662 Kitchen appliance tool 666 Display 370, 670 Evaluation module 372, 672Kitchen appliance position sensor 674Release module

Claims

1. A kitchen appliance (230, 330, 530, 630), comprising: - at least one accessory (100, 200, 400, 500, 600) , wherein the accessory (100, 200, 400, 500, 600) comprises: - at least one transponder arrangement (102, 202, 402, 602), - wherein the transponder arrangement (102, 202, 402, 602) comprises a transponder (104, 204, 404, 604) and an accessory position sensor (108, 208, 408, 608) connected to the transponder (104, 204, 404, 604), - wherein the accessory position sensor (108, 208, 408, 608) is configured to detect at least one accessory position parameter of the accessory (100, 200, 400, 500, 600), and - wherein the transponder arrangement (102, 202, 402, 602) is configured to transmit the detected accessory position parameter to the reading arrangement (221, 321, 421, 621), - a reading arrangement (221, 321, 421, 621) comprising a reading controller (226, 326, 626) and at least one reading antenna (106, 206, 306, 406, 606) connectable to the reading controller (226, 326, 626), - wherein the reading controller (226, 326, 626) comprises an evaluation module (370, 670) configured to determine an operating position of the accessory (100, 200, 400, 500, 600) based on the read accessory position parameter and an operating position criterion., characterized in that - the kitchen appliance (230, 330, 530, 630) comprises at least one kitchen appliance position sensor (372, 672) configured to detect a kitchen appliance position parameter, - where the operating position criterion is based on the detected kitchen appliance position parameter.

2. The kitchen appliance (230, 330, 530, 630) of claim 1, characterized in that the kitchen appliance (230, 330, 530, 630) further comprises: - an appliance base (232, 332, 632), and - at least one container arrangement, - wherein the appliance base (232, 332, 632) and / or the container arrangement comprises the reading arrangement (221, 321, 421, 621), and - the reading arrangement (221, 321, 421, 621) is configured to at least read the accessory position parameter from the transponder arrangement (102, 202, 402, 602).

3. The kitchen appliance (230, 330, 530, 630) according to claim 1 or 2, characterized in that - the reading controller (226, 326, 626) is configured to apply an antenna signal to the reading antenna (106, 206, 306, 406, 606) so that a reading field is transmitted by the reading antenna (106, 206, 306, 406, 606).

4. The kitchen appliance (230, 330, 530, 630) according to any one of the preceding claim, characterized in that - the evaluation module (370, 670) is configured to compare the accessory position parameter with the kitchen appliance position parameter, and - the evaluation module (370, 670) is configured to determine the operating position of the accessory based on the comparison result.

5. The kitchen appliance (230, 330, 530, 630) according to any one of the preceding claims, characterized in that - the reading arrangement (221, 321, 421, 621) is configured at least to read the accessory identifier and / or the accessory type identifier from the transponder arrangement (102, 202, 402, 602), and - the evaluation module (370, 670) is configured to determine the operating position of the accessory (100, 200, 400, 500, 600) based on the accessory identifier and / or the accessory type identifier.

6. The kitchen appliance (230, 330, 530, 630) according to any one of the preceding claims, characterized in that - the transponder (104, 204, 404, 604) is an RFID transponder (104, 204, 404, 604).

7. The kitchen appliance (230, 330, 530, 630) according to any one of the preceding claims,, characterized in that - the transponder (104, 204, 404, 604) is a passive transponder (104, 204, 404, 604).

8. The kitchen appliance (230, 330, 530, 630) according to any one of the preceding claims, characterized in that - the transponder (104, 204, 404, 604) is configured to provide electrical power to the accessory position sensor (108, 208, 408, 608) based on a received reading field of the reading antenna (106, 206, 306, 406, 606).

9. The kitchen appliance (230, 330, 530, 630) according to any one of the preceding claims,, characterized in that - the transponder (104, 204, 404, 604) comprises at least one readable memory, - wherein at least one accessory identifier and / or accessory type identifier is / are stored in the memory.

10. The kitchen appliance (230, 330, 530, 630) according to any one of the preceding claims, characterized in that - the transponder (104, 204, 404, 604) comprises at least one readable memory, - wherein at least one calibration information of the accessory position sensor (108, 208, 408, 608) is stored in the memory (101).

11. The kitchen appliance (230, 330, 530, 630) according to any one of the preceding claims, characterized in that - the accessory position sensor (108, 208, 408, 608) is an acceleration sensor, and / or - the accessory position parameter is an angle of inclination of the accessory (100, 200, 400, 500, 600) with respect to the acceleration due to gravity.

12. Kitchen appliance (230, 330, 530, 630) according to one of the previous claims, characterized in that - the accessory is an accessory from the group comprising: - knife cover, - stirring attachment, - lid, - lid with additional function, e.g. cutting device for vegetables - pot, - measuring cup, - cooking basket, and / or - varoma.

13. A method of determining the operating position of an accessory (100, 200, 400, 500, 600) of the kitchen appliance (230, 330, 530, 630) according to any one of the preceding claims, comprising: - reading, by a reading arrangement (221, 321, 421, 621) of a kitchen appliance (230, 330, 530, 630), the accessory position parameter of the accessory (100, 200, 400, 500, 600) detected by the accessory position sensor (108, 208, 408, 608), and - determining, by an evaluation module (370, 670) of the reading arrangement (221, 321, 421, 621), an operating position of the accessory (100, 200, 400, 500, 600) based on the read accessory position parameter and an operating position criterion.