Portable operating element and operating device with ring magnet and special magnetic field influencer

Abstract

The invention relates to a portable operating element (9) for an operating device (7) of a cooking appliance (1), the operating element being designed to be non-destructively mounted on and removed from an operating element receptacle (8) of the operating device (7) and being operable in the mounted state for setting operating conditions of the cooking appliance (1), wherein the operating element (9) comprises a housing (17) and an annular magnet (28) which is arranged in the housing (17), and the operating element (9) comprises a magnetic field influencer (29) which is separate from the annular magnet (28). The magnetic field influencer is arranged in a housing (17), wherein the magnetic field influencer (29) has a ring (30) which is arranged above the annular magnet (28) and is arranged overlapping the annular magnet (28) in the radial direction of the operating element (9), wherein the magnetic field influencer (29) additionally has at least one web (31) which is arranged at the inner edge (30a) of the ring (30) and is oriented vertically axially downward, so that the web is arranged overlapping the annular magnet (28) in the direction of the longitudinal axis (A) of the operating element (9). The invention also relates to an operating device (7).

Description

Technical Field

[0001] One aspect of the invention relates to a portable operating element for an operating device of a cooking appliance. The operating element is designed to be non-destructively mounted on and removed from an operating element receptacle of the operating device. The portable operating element can be operated in the state of being mounted on the operating element receptacle to set operating conditions of the cooking appliance. The operating element has a housing. In addition, the operating element also has an annular magnet arranged in the housing. In addition, the operating element also has a magnetic field influencer separated from the annular magnet. The magnetic field influencer is arranged in the housing. Another aspect of the invention relates to an operating device with such a portable operating element. Background Art

[0002] An operating device with a portable operating element as discussed above is known, for example, from DE 102012001997A1. It is provided there that a circular flux concentrator is arranged on the upper side of the transmitter unit. This flux concentrator is positioned directly above the annular magnet. This planar, disc-shaped flux concentrator is therefore a disc plate. On the one hand, this disc plate is relatively large and therefore has a relatively large weight under the above-mentioned mutual relationship. In addition, through the design of this geometric shape related to this, the field lines of the annular magnet can only be specifically influenced under certain conditions. Therefore, although it is possible to detect the manipulation of the portable operating element in terms of tilting and / or rotation based on this magnetic field detection, it may not be sufficient for extremely special and / or slight manipulations. Summary of the invention

[0003] The object of the present invention is to provide a portable operating element and an operating device with which the detection of an actuation of the operating element based on magnetic fields and magnetic field changes can be improved.

[0004] This object is achieved by a portable operating element and an operating device according to the invention.

[0005] One aspect of the present invention relates to a portable operating element for an operating device of a cooking appliance. The portable operating element is designed to be non-destructively mounted on and removed from an operating element receiving portion of an operating device. In the mounted state of the portable operating element, the operating element can be operated to set the operating conditions of the cooking appliance. The operating element has a housing. In addition, the operating element also has an annular magnet arranged in the housing. In addition, the operating element also has a separate and specific magnetic field influencer from the annular magnet. The magnetic field influencer is arranged in the housing. The magnetic field influencer has a ring. The ring is arranged above the annular magnet. The ring is arranged to overlap with the annular magnet in the radial direction of the operating element. In this regard, the radial direction is observed relative to the longitudinal axis of the portable operating element. In addition, the magnetic field influencer also has at least one connecting piece. The connecting piece is arranged at the inner edge of the ring. In addition, the connecting piece is also oriented vertically downward in the axial direction, so that the connecting piece is arranged to overlap with the annular magnet in the direction of the longitudinal axis of the operating element. By this special design of the portable operating element, in particular the magnetic field influencer, the magnetic field of the annular magnet can be better oriented as follows, so that more special and / or slight manipulations of the operating element can also be better detected. Therefore, by this geometrically specified magnetic field influencer, the magnetic field lines of the annular magnet can be influenced in this way, so that in particular the special tilting movement of the portable operating element can also be detected. In particular, this tilting movement can be detected with a higher probability and a higher accuracy. This is especially a slight tilting movement coming out of the horizontal basic position of the portable operating element. In addition, the rotational movement of the portable operating element around its longitudinal axis can also be better detected by this design. Under the above relationship, multiple scattered rotational positions around the longitudinal axis can therefore be detected more accurately. The resolution of each scattered position can thus be improved in view of the correct detection. The number of scattered rotational positions associated with the operating condition setting and formed along the circumferential direction around the longitudinal axis can therefore be improved compared to the prior art. The resolution of this position detection is improved or refined by this design of the portable operating element according to the above aspects.

[0006] The magnetic field influencer is therefore no longer constructed as a completely continuous horizontal plate with its ring. To be more precise, the ring is set to a certain extent in the radial area where the ring magnet is also arranged under the said mutual relationship. In a design scheme as a ring, the ring has a thin structure along the axial direction oriented in the direction of the longitudinal axis. This means that the ring has a smaller size in this axial direction than in the radial direction. The ring is therefore constructed as a flat ring. This means that the ring is a ring strip to a certain extent. A very flat structure can be achieved in the axial direction. In addition, a supplementary structure of the magnetic field influencer is formed by an additional connecting piece, which mainly helps to influence the magnetic field in an individualized and special manner. They are oriented perpendicular to the ring in a vertical section in an advantageous embodiment. This connecting piece is a separate component when observed by itself. Therefore, a closed connecting piece ring that is hung and connected and constructed in a circumferential direction around the longitudinal axis will not be formed. More precisely, an annular segment is formed by at least one connecting piece, which is preferably bent around the longitudinal axis. In addition, this connecting piece is dimensioned in its cross-sectional view so that the connecting piece has a smaller size in the radial direction than in the axial direction. Therefore, a vertically oriented connecting piece strip is also advantageously formed again by the connecting piece. This geometry results in a certain axial orientation of the web. The web, viewed in the axial direction, points further downward than the ring. In particular, it is provided that at the location of the ring and web, where the magnetic field influencer is formed, this magnetic field influencer is designed in an L-shaped manner in a vertical section. At the location with the ring and web, an angled section is formed, in particular in a vertical section. In this relationship, the ring and web are oriented at an angle of 85° to 95°, in particular 90°, to each other in an advantageous embodiment.

[0007] In particular, it is provided that the web is positioned radially further inwards than the ring, viewed in the radial direction and therefore perpendicularly to the longitudinal axis. In particular, it is provided that the radially inner end of the ring is at a radial position at which the web extends axially. In particular, the upper end of the web does not protrude upwards beyond the ring, viewed in the axial direction. The upper end of the web terminates in particular at the radially inner end of the ring.

[0008] In an advantageous embodiment, there are a plurality of webs which are arranged equidistant from one another when viewed in a circumferential direction about the longitudinal axis. This results in a pattern which is symmetrical with respect to this, which alternately has webs and then free spaces or interruptions in this azimuthal direction. Thus, a web-free space pattern is formed in a circumferential direction about the longitudinal axis. In particular, a magnetic field influencer is thus created which, in terms of its design, is designed with webs in a toothed manner.

[0009] By configuring the web in this way with regard to its orientation and arrangement, the detection of specific actuations, in particular small tilting movements and / or individual rotational movements, can be improved and carried out more accurately.

[0010] In particular, it is provided that at least one connecting piece, in particular a plurality of connecting pieces, respectively extend between 20° and 80° in a circumferential direction around the longitudinal axis. This means that the azimuthal length of the connecting piece is configured to exceed an angular range that may be between 20° and 80°.

[0011] In particular, it is provided that at least three such webs are formed in a circumferential direction around the longitudinal axis. In particular, four such webs are formed in a circumferential direction around the longitudinal axis.

[0012] In an advantageous embodiment, the ring of the magnetic field influencer and at least one connecting piece of the magnetic field influencer are formed in one piece. This can reduce the number of components. In particular, this achieves that the relative position between the connecting piece and the ring is always and permanently maintained.

[0013] Preferably, it is provided that the magnetic field influencing device is formed from a ferromagnetic material. This is a further extremely advantageous embodiment, since a specific and extremely precise influencing of the magnetic field of the ring magnet can thereby be achieved.

[0014] In an advantageous embodiment, it is provided that the ring of the magnetic field influencer lies directly on the upper side of the annular magnet. It can also be provided that the ring of the magnetic field influencer protrudes radially outwards from the annular magnet relative to the longitudinal axis. In particular, the upper side of the annular magnet is completely covered by the position of the ring. This further improves the above-mentioned advantages.

[0015] Preferably, provision is made for the connecting piece of the magnetic field influencer to be arranged radially further inwards relative to the longitudinal axis than the annular magnet and to be radially spaced apart from the annular magnet. This is also a further advantageous embodiment in order to further improve the above-mentioned advantages.

[0016] Preferably, it is provided that the connecting piece of the magnetic field influencing device extends axially further downward than the annular magnet. This also improves the influencing of the magnetic field so that a specific actuation of the operating element can be detected more precisely.

[0017] Preferably, the ring magnet is cast from a plastic-bonded rare earth material or from a plastic-bonded hard ferrite. These special materials, on the one hand, allow a particularly advantageous influencing of the magnetic field. On the other hand, this allows simple production. It is therefore also possible to provide a stable and as compact a ring magnet as possible.

[0018] It is provided that the housing of the portable operating element is closed. The housing has in particular a housing upper part and a housing lower part separated therefrom. In an advantageous embodiment, the two housing parts can be connected in a manner that allows for non-destructive detachment. For example, a screw connection or a snap connection or a snap connection can be provided. In the closed state of the housing, an interior space is formed, in which components are arranged. These are in particular the annular magnet and the magnetic field influencer.

[0019] It can be provided that the portable operating element has only a housing, in which only the additional components of the portable operating element are contained. Further components belonging to the operating element are then not arranged outside the housing. The outer geometry of the portable operating element is thus formed by the housing. The portable operating element can be designed in the shape of a disk or a discus.

[0020] In an alternative embodiment, it is provided that the portable operating element has, in addition to the housing and the components arranged in the housing, another sub-element, which is arranged outside the housing. This other sub-element can be, in particular, a stator. It can then be provided that the housing can be coupled to the stator. The stator can be configured as a bearing seat for the housing in the described relationship. This means that the housing can be mounted on the stator and can move relative to the stator. The housing can, for example, be tilted relative to the stator and / or rotated about a longitudinal axis of the operating element, which is the longitudinal axis of the stator.

[0021] If the portable operating element is formed only by the housing as the outer part, the lower side of the housing can be designed, for example, in the form of a truncated cone, in particular in the radial outer region. The housing can then be placed with the truncated cone-shaped central region onto the operating element receptacle of the operating device. A tilting movement can also be performed by the truncated cone walls that continue outwards, which can then be tilted obliquely upwards and arranged in a contactless manner relative to the upper side of the operating element receptacle in the basic position of the portable operating element. By means of this tilting movement, the truncated cone-shaped side walls can then be moved toward the upper side of the operating element receptacle.

[0022] In an embodiment in which the operating element has, in addition to the housing, a stator arranged outside the housing, such an underside of the housing can also be designed flat in the radial outer region of the underside. However, the underside can also be designed in the shape of a truncated cone.

[0023] In particular, the stator is designed in such a way that in the basic position in which the housing is mounted on the stator, the lower side of the housing does not rest on the upper side of the operating element receptacle of the operating device. Preferably, a recess is formed on the lower side of the housing. When the housing is mounted on the stator, the stator is inserted into this recess. The top of the recess has a downwardly directed protrusion, which engages in a groove formed in the upper side of the stator. As a result, the housing can lie flatter on the stator. This prevents the housing from sliding sideways relative to the stator. As a result, the relative movement of the housing relative to the stator can be carried out extremely precisely and accurately. As a result, the corresponding operation can also be detected relatively precisely and accurately.

[0024] In particular, it is provided that in an embodiment with a housing and a stator, at least the housing can be removed from the stator in a manner that can be removed without damage. It can be provided that the stator is mounted in a fixed position on the operating element receptacle of the operating device. However, it can also be provided that the stator can also be removed from the operating element receptacle in a manner that can be removed without damage.

[0025] In an advantageous embodiment, it is provided that the projection is designed as a truncated cone. In addition or as an alternative thereto, it can be provided that the recess is designed as a truncated cone-shaped recess. This can improve the above-mentioned advantages in terms of secure positioning. However, this also enables a smooth-running and precise relative movement of the housing relative to the stator. In particular, rotational movements and tilting movements can be carried out particularly precisely.

[0026] Another aspect of the present invention relates to an operating device for a cooking appliance. The operating device has an operating element receptacle. The operating device also has at least one portable operating element, which is configured according to the above aspect or according to an advantageous embodiment of this aspect. The portable operating element can be mounted on and removed from the operating element receptacle in a non-destructive manner at least in parts. This particularly relates to the housing of the operating element and the components contained in the housing.

[0027] Another aspect of the present invention relates to a household appliance with such an operating device. The household appliance can be configured to cook food, in particular a cooking appliance, which can be, for example, a stove or an oven.

[0028] The terms "above", "below", "front", "back", "horizontal", "vertical", "depth direction", "width direction", "height direction", etc., describe the position and orientation that is given when the operating device or the appliance is used in accordance with the provisions and arranged in accordance with the provisions and for an observer who is in particular in front of the operating device or the appliance and looking in the direction of the operating device or the appliance.

[0029] Further features of the invention are apparent from the drawings and the description of the drawings. Features and feature combinations mentioned previously in the description and those mentioned later in the description of the drawings and / or shown individually in the drawings can be used not only in the respectively described combination but also in other combinations or individually without departing from the scope of the invention. Therefore, embodiments of the invention which are not explicitly shown and explained in the drawings but which are derived and can be produced from the explained embodiments by means of individual feature combinations are also considered to be included and disclosed.

[0030] Exemplary embodiments of the invention are explained in more detail below with reference to schematic diagrams. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a perspective view of an embodiment of a cooking appliance;

[0032] Figure 2 is a vertical sectional view of an embodiment of an operating device according to the invention with an embodiment of a portable operating element according to the invention;

[0033] Figure 3 is an isolated diagram of an operating element according to one embodiment; and

[0034] Figure 4 Yes Figure 2 and Figure 3 Exploded view of some components of the portable operating unit.

[0035] In the figures, identical elements or elements having the same function are provided with the same reference symbols. DETAILED DESCRIPTION

[0036] exist Figure 1 , a simplified diagram of a cooking appliance, which is a cooktop 1 in this case, is shown. The cooktop 1 has a cooktop plate 2, on which cooking zones 3, 4, 5 and 6 are shown, which are to be understood only as examples in terms of position, number and geometric design. The cooktop 1 also has an operating device 7. The operating device 7 has an operating element holder 8 and a portable operating element 9 separated therefrom. The operating element 9 is designed in the form of a flat cylinder or discus. It can be removed from the operating element holder 8 and put on it again in a non-destructive detachable manner. When the operating element 9 is put on the operating element holder 8, the operating conditions of the cooktop 1 can be set. For example, cooking zones 3 to 6 can be selected and / or the cooking level of the selected cooking zones 3 to 6 can be set.

[0037] exist Figure 2, an embodiment of an operating device 7 is shown in a vertical section. The portable operating element 9 is arranged in a basic position on the operating element receptacle 8. The operating element receptacle 8 can be a component of the cooktop 2. Instead of the cooktop 2, other cooking appliances, such as an operating panel of an operating device, can have such an operating element receptacle 8.

[0038] The operating device 7 has a detection unit 10. The detection unit 10 is arranged below the cooktop plate 2. The detection unit 10 has a magnet 11. This magnet is configured as a holding magnet. This means that the holding magnet interacts with a magnet 12 of the portable operating element 9 to hold the position of the portable operating element 9 on the operating element receiving portion 8 by a magnetic holding force. The magnet 12 is therefore a holding magnet.

[0039] In addition, the detection unit 10 has a grounding plate 13. This grounding plate is in particular designed as a grounding plate strip. The grounding plate is in particular designed to be ferromagnetic. In addition, the detection unit 10 also has a circuit board 14. Electronic components are arranged on this circuit board. This circuit board 14 has sensors so that it can detect the operation of the portable operating element 9 in interaction with the components of the portable operating element 9. Sensors 15 are also arranged on this circuit board 14. These sensors are in particular Hall sensors.

[0040] In the exemplary embodiment described, the detection unit 10 also has a main circuit board 16. The main circuit board 16 has a display element. The main circuit board is also electronically connected to a circuit board 14, which can also be referred to as a sensor circuit board.

[0041] The operating device 7 has a longitudinal axis A. This longitudinal axis is oriented perpendicularly to the operating element receptacle 8. As can be seen in the exemplary embodiment, the holding magnet 11 is polarized in the direction of this longitudinal axis A and thus in the axial direction. In the exemplary embodiment, the north pole N is at the top and the south pole S is at the bottom. The magnet 12 provided for holding is accordingly magnetized in the axial direction. The south pole S is at the bottom and the north pole N is at the top.

[0042] The portable operating element 9 has a housing 17 in the illustrated embodiment. The housing 17 has a housing upper part 18. The housing also has a housing lower part 19 separated from the housing upper part. The housing parts 18 and 19 are connected to each other. In particular, a connection that can be disassembled without damage is provided. The housing 17 is completely closed by the two housing parts 18 and 19. As a result, an interior space 20 is formed in the housing 17. Other components of the portable operating element 9 are arranged in the interior space 20. In particular, another magnet 21 is arranged in the housing 17. This other magnet is also centrally positioned like the magnet 12. The magnets 12 and 21 are in magnetic interaction. As a result, a magnetic holding force is established. The housing 17 is placed on another sub-element 22 of the portable operating element 9 in the above-mentioned relationship. This sub-element 22 is a stator in the embodiment. The stator is arranged separately from the housing 17 and arranged outside the housing 17. The stator is especially arranged directly on the upper side 2a of the cooktop plate 2. The stator is arranged directly on the upper side 8a of the operating element receptacle 8 in particular. In this embodiment, the housing 17 is arranged directly flat or placed on this sub-element 22. By means of the magnets 12 and 21, a magnetic holding force is generated here, so that the housing 17 is placed on the sub-element 22 in a magnetically held manner. The magnet 21 is also magnetized in the axial direction. In the embodiment described, the north pole N is at the top and the south pole S is at the bottom. The housing 17 is formed in this relationship so that it has a recess 23 on the lower side formed by the housing lower part 19 in the embodiment described. The sub-element 22 is inserted into this recess 23. As can be seen, a downwardly formed projection 25 is formed on the top 24 that delimits the recess 23 toward the top. This projection 25 is particularly designed in the form of a truncated cone. In the embodiment, it is provided that a recess 27 is formed on the upper side 26 of the sub-element 22. This recess 27 is preferably designed in the form of a truncated cone. It is particularly preferred that a complementary geometric design is formed between the projection 25 and the recess 27.

[0043] The housing upper part 18 , which can also be referred to as a cap, is preferably made of a ferromagnetic material.

[0044] In particular, a ring magnet 28 is arranged which is closed around the periphery in the housing 17. In the exemplary embodiment, the ring magnet 28 is preferably magnetized in the axial direction. Its south pole S is at the top and its north pole N is at the bottom. This ring magnet 28 which is completely closed in the circumferential direction around the longitudinal axis A is arranged in such a way with respect to its radial dimensions that in the illustrated basic position or basic position of the portable operating element 9, this ring magnet 28 is positioned axially to a certain extent above the Hall sensor 15.

[0045] In addition, the portable operating element 9 has a magnetic field influencer 29. This magnetic field influencer is a component separated from the annular magnet 28. This magnetic field influencer 29 is preferably composed of a ferromagnetic material. The magnetic field influencer 29 is completely arranged in the interior 20. The magnetic field influencer 29 has a ring 30. This ring 30 is positioned so that the ring completely covers the upper side 28a of the annular magnet 28 from above in the radial direction relative to the longitudinal axis A. The relatively flat ring 30 is constructed without interruption along the circumferential direction around the longitudinal axis A. The ring is radially farther outward than the annular magnet 28 in the radial direction relative to the longitudinal axis A. In addition, the ring is radially more inward than the annular magnet 28. The magnetic field influencer 29 also has a plurality of connecting pieces 31. At least two connecting pieces 31 are constructed, which are constructed at the ring 30 in the circumferential direction around the longitudinal axis A. The connecting pieces are formed as annular segments in the circumferential direction around the longitudinal axis A and are therefore not completely circumferential. They are arranged equidistantly from each other in the circumferential direction around the longitudinal axis A. More than two such connecting pieces 31 may be provided, for example, three or four or more than four.

[0046] The connecting piece 31 is constructed integrally with the ring 30. Figure 2 In the vertical section of the ring 30, the magnetic field influencing device 29 is not oriented horizontally, but vertically. This orientation is also observed in particular with reference to the main extension direction of the ring 30. In the vertical section, the magnetic field influencing device 29 is configured in an L-shape at this position where the ring 30 and the connecting piece 31 are present. The two sides of this L-shape are formed by the ring 30 on the one hand and by the connecting piece 31 on the other hand. The connecting piece 31 extends axially downward from the upper end 31a. The lower end 31b of the connecting piece 31 extends further downward than the ring magnet 28 in the embodiment. As can be seen, the connecting piece 31 is positioned radially relative to the longitudinal axis A to be closer to the inside than the ring magnet 28. In particular, it is provided that a spacing is formed between the ring magnet 28 and the connecting piece 31 in this radial direction. The connecting piece 31 does not protrude upward relative to the ring 30 in the axial direction. The transition between the ring 30, in particular the radially inner end or inner edge 30a of the ring 30, and the connecting piece 31 is configured in particular with rounding.

[0047] In particular, it is provided that an axial web 32 is formed on the inner side 18a of the housing upper part 18. The axial web 32 is arranged at the location where the ring 30 is arranged, viewed radially relative to the longitudinal axis A. This axial web 32 is placed on the ring 30 from above. The web 32 is especially made of a ferromagnetic material. The web 32 is especially formed around the longitudinal axis A, especially without interruption. The web is thus formed in a completely closed manner in the circumferential direction around the longitudinal axis A.

[0048] In this basic position of the portable operating element 9 and in Figure 2In the embodiment shown, the underside 33 of the portable operating element 9 is designed to be flat. This is the surface formed outside the recess 23. However, it is also possible to Figure 2 As shown in , a slight inclination is formed. It can be provided that this inclination is oriented upward from a radially inner position toward a radially outer position.

[0049] This makes it possible in particular to easily implement a tilting movement of the housing 17 relative to the sub-element 22. The special form of the mounting of the housing 17 on the sub-element 22 also contributes in particular to this.

[0050] In order to adjust the operating conditions of the cooktop 1, the housing 17 can be tilted on the one hand. This tilting movement is detected by the Hall sensor 15. In the described relationship, the axial distance between the annular magnet 28 and the magnetic field influencer 29 and in particular the Hall sensor 15 decreases at this point, while it increases on the opposite side.

[0051] In addition, it is also possible to rotate the housing 17 about the longitudinal axis A in order to set the operating conditions of the cooktop 1. For example, a cooking zone 3 to 6 can be selected by a tilting movement and a cooking level of the selected cooking zone 3 to 6 can be set by a rotational movement about the longitudinal axis A.

[0052] In particular, it is provided that the housing 17 can be rotated relative to the sub-element 22. In the exemplary embodiment, the housing 17 can be removed from the sub-element 22 in a non-destructively removable manner and can be put back on.

[0053] It can be provided that in another embodiment, the portable operating element 9 is formed only by the housing 17. It then has no external sub-element 22. In this embodiment, the housing bottom 19 is not formed with a recess 23. Rather, a flat wall is then formed in this central, centering region, which wall rests directly on the top side 8a.

[0054] As can be seen, in the illustrated embodiment, the recess 23 extends radially at a height which at least partially corresponds to the height of the magnetic field influencer 29, in particular the connecting piece 31. This recess 23 is therefore arranged axially at least partially overlapping the magnetic field influencer 29. In the embodiment, the side wall 34 which delimits the recess 23 extends completely overlapping the entire height of the magnetic field influencer 29. In particular, this side wall 34 extends further upward than the ring 30. This side wall 34 is arranged radially spaced apart from the magnetic field influencer 29, in particular the connecting piece 31. The magnet 21 is arranged in the housing 17 in a receptacle 35 of the housing lower part 19, which is open upward. A downwardly protruding projection 36 of the cover or housing upper part 18 is inserted into this receptacle.

[0055] exist Figure 3 An exemplary embodiment of a portable operating element 9 is shown in a separate figure.

[0056] exist Figure 4 2 shows an embodiment of a portable operating element 9 in an exploded view. In the embodiment shown, four connecting pieces 31 are formed here.

[0057] In the portable operating element 9 Figures 2 to 4 In the embodiment of the present invention, the housing 17 can be called a rotor assembly and the sub-element 22 can be called a stator assembly. The housing 17 can move relative to the sub-element 22, in particular tilt or tilt relative to the longitudinal axis A and / or rotate around the longitudinal axis A when mounted on the sub-element 22.

[0058] By means of the portable operating element 9 explained, a smaller tilting angle than before can be detected. In addition, the rotational movement can also be resolved much more accurately, which means that more stages and thus decentralized rotational positions around the longitudinal axis A can also be achieved with this embodiment. In addition, the portable operating element 9 can be used for different household appliances. For example, for stoves and ovens and fully automatic coffee machines. This specific enumeration of household appliances is not final and is only exemplary. The most diverse other household appliances can also be specified, such as household appliances for washing care, such as washing machines and dryers. Other household appliances can also be specified, such as household appliances for cleaning dishes or for storing and storing food, such as refrigerators or freezers or refrigeration-freezer combinations. Other household appliances can also be specified for this, such as fryers or range hoods or the like.

[0059] Reference numerals list

[0060] 1 Cooktop

[0061] 2 Cooktop Plate

[0062] 2a Upper side

[0063] 3 cooking zones

[0064] 4 cooking zones

[0065] 5 Cooking Zones

[0066] 6 Cooking Zones

[0067] 7 Operating device

[0068] 8 Operating element holder

[0069] 8a Upper side

[0070] 9 Operating elements

[0071] 10 Detection unit

[0072] 11 Magnet

[0073] 12 Magnets

[0074] 13 Ground plate

[0075] 14 Circuit Board

[0076] 15 Sensors

[0077] 16 Main circuit board

[0078] 17 Housing

[0079] 18 Upper shell

[0080] 18a Inside

[0081] 19 Lower part of the housing

[0082] 20 Interior Space

[0083] 21 Magnet

[0084] 22 components

[0085] 23 recess

[0086] 24 Top

[0087] 25 Protrusion

[0088] 26 upper side

[0089] 27 Grooves

[0090] 28 Ring magnet

[0091] 28a upper side

[0092] 29 Magnetic Field Influencer

[0093] 30 rings

[0094] 30a Inner edge

[0095] 31 Connector

[0096] 31a Upper end

[0097] 31b Lower end

[0098] 32 Axial tab / lower side

[0099] 33 Lower side

[0100] 34 Sidewall

[0101] 35 Accommodation

[0102] 36 Protrusion

[0103] 37 Elements

[0104] A Longitudinal axis

[0105] N Arctic

[0106] S Antarctica

Claims

1. A portable operating element (9) for an operating device (7) of a cooking appliance (1), the operating element being designed to be non-destructively mounted on and removed from an operating element receptacle (8) of the operating device (7) and being operable in a tilting and rotating manner in order to set operating conditions of the cooking appliance (1) in the mounted state, wherein: The operating element (9) comprises a housing (17) and an annular magnet (28), the annular magnet being arranged in the housing (17), and the operating element (9) comprises a magnetic field influencer (29) which is separate from the annular magnet (28) and is arranged in the housing (17), characterized in that the magnetic field influencer (29) comprises a ring (30) which is arranged above the annular magnet (28) and overlaps the annular magnet (28) in the radial direction of the operating element (9), wherein the magnetic field influencer (29) further comprises at least one web (31) which is arranged at an inner edge (30a) of the ring (30) and is oriented vertically downward in the axial direction, so that the web is arranged overlapping the annular magnet (28) in the direction of the longitudinal axis (A) of the operating element (9).

2. The portable operating element (9) according to claim 1, characterized in that There are a plurality of connecting pieces (31) which are arranged equidistantly in a circumferential direction around the longitudinal axis (A).

3. The portable operating element (9) according to claim 2, characterized in that The webs (31) each extend between 20° and 80° in a circumferential direction around the longitudinal axis (A).

4. The portable operating element (9) according to claim 1, characterized in that The ring (30) and the at least one connecting piece (31) are designed integrally.

5. The portable operating element (9) according to any one of claims 1 to 3, characterized in that The magnetic field influencer (29) is formed from a ferromagnetic material.

6. The portable operating element (9) according to claim 1, characterized in that The ring (30) lies directly on the upper side (28a) of the ring magnet (28) and / or the ring (30) protrudes radially outwardly from the ring magnet (28) relative to the longitudinal axis (A).

7. The portable operating element (9) according to claim 1, characterized in that The at least one connecting piece (31) is arranged radially inwardly relative to the longitudinal axis (A) than the ring magnet (28) and is arranged radially spaced apart from the ring magnet (28).

8. The portable operating element (9) according to claim 1, characterized in that The at least one connecting piece (31) extends further downward in the axial direction than the annular magnet (28).

9. The portable operating element (9) according to claim 1, characterized in that The annular magnet (28) is cast from a plastic-compounded rare earth material or a plastic-compounded hard ferrite.

10. The portable operating element (9) according to claim 1, characterized in that The housing (17) is closed and has a housing upper part (18) and a housing lower part (19).

11. The portable operating element (9) according to claim 1, characterized in that The housing (17) has a bottom side (33) which is designed in the form of a truncated cone, in particular in a radially outer region.

12. The portable operating element (9) according to claim 11, characterized in that The operating element (9) comprises the housing (17) and a sub-element (22) which is separate from the housing (17), the housing (17) being mounted on the sub-element and on which the housing (17) can be moved relative to the sub-element (22).

13. The portable operating element (9) according to claim 12, characterized in that The housing (17) has a recess (23) on the underside (33), into which the component (22) is inserted, wherein the top (24) of the recess (23) has a projection (25) which engages in a groove (27) on the upper side of the component (22).

14. The portable operating element (9) according to claim 13, characterized in that The projection (25) is configured as a truncated cone and / or the recess (27) is configured as a truncated cylindrical recess.

15. An operating device (7) for a cooking appliance (1), comprising an operating element receptacle (8) and a portable operating element (9) according to any one of claims 1 to 14, which can be inserted into and removed from the operating element receptacle (8) in a non-destructively removable manner.

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