Operating device for a domestic appliance

Abstract

An operating device (3) for a household appliance (1, 2) has a control element (6) and a display device (8), wherein the control element (6) is movable such that in a first displacement position the display device (8) is covered and in the second displacement position the display device (8) is released.

Description

[0001] The content of the German patent application DE 10 2024 210 083.8 is incorporated herein by reference.

[0002] The invention relates to a control device for a household appliance. The invention also relates to a cooktop, a combination appliance, and a range hood with such a control device.

[0003] Household appliances are usually operated via touch-sensitive controls (so-called touch panels) or by means of control knobs.

[0004] Control knobs for operating a hob are known, for example, from DE 10 2020 207 162 A1 and from DE 20 2009 009 727 U1.

[0005] It is an object of the present invention to improve an operating device for a household appliance.

[0006] This problem is solved by an operating device according to the present invention.

[0007] The claims of the present application relate only to a selection of the (partial) aspects of the invention. This selection is not to be understood as restrictive.

[0008] As is immediately and unambiguously apparent to a person skilled in the art from the following general description and from the description of exemplary embodiments, the invention comprises a plurality of at least partially independent (partial) aspects. These aspects, in particular those highlighted below, especially aspects of the design of an operating element with different displacement positions of the operating element, aspects of the display device of the operating device, aspects of the lighting device, and aspects of the use of the operating device, can each, individually, i.e., independently of one another, or in combination with other partial aspects, lead to advantages. In particular, they can form the subject matter of claims independently of other features.

[0009] The following is optional (“ can " / " canFeatures shown in the figure are to be understood specifically as such. Corresponding components or measures may be provided, but are not necessarily required to be.

[0010] The disclosure of an optional feature should, in particular, include the disclosure of the corresponding complementary feature, even if this is not explicitly stated again in the description in a specific case. Specifically, this means: if the following is stated: "The device can have feature A", This means that the device does not necessarily have feature A, in particular that the device also has feature " not-A " can exhibit.

[0011] Furthermore, the order in which the characteristics are disclosed should not be interpreted as restrictive. In particular, characteristics mentioned later should not be understood as subordinate to or dependent on those mentioned earlier.

[0012] According to one aspect, the operating device can comprise a control element and a display device. The control element can, in particular, be repositionable such that in a first repositioned position, also referred to as the off position, the display device is concealed. A concealed display device is, in particular, not enabled. The display device can, in particular, be concealed by the control element in the off position. The display device can thus be protected by the control element. This is not a mandatory feature. This aspect can be implemented or omitted independently of the other features of the invention.

[0013] The display device is, in particular, invisible in the first displacement position of the control element, especially from a typical viewing angle for operating the household appliance, particularly obliquely from the front and / or from at least one side and / or from below. In the first displacement position of the control element, a normal of the display device passes through the control element. In the first displacement position of the control element, all normals of the display device may, in particular, pass through the control element.

[0014] In a second position of the control element, the display may be enabled. An enabled display is, in particular, not obscured. The display is visible in the second position of the control element, especially from a typical viewing angle for operating the appliance, particularly from an oblique front view. In the second position of the control element, no normal of the display passes through the control element. In the second position of the control element, none of the normals of the display pass through the control element. An enabled display may also be understood to mean the provision of a functionality. In an enabled position, the display may, in particular, allow a specific function, especially an adjustable setting.

[0015] In the second relocation position of the control element, at least one function of the household appliance can be controlled or adjusted using the control element.

[0016] The travel distance between the switch-off position and the second displacement position is, for example, in the range of 10 mm to 30 mm and / or in the range of 10° to 90°, in particular 10° to 45°.

[0017] The movement from the first displacement position, the off position, to the second displacement position is also called the release movement.

[0018] According to one aspect, the control element (6) can be moved in such a way that it releases the operation of the household appliance (1, 2) with a release movement.

[0019] The control element can, in particular in the off position, cover and thus protect the display device, and release it in a second repositioned position when switched on.

[0020] According to one aspect, the operating device can have a display device which remains stationary when the operating element is actuated.

[0021] This allows for a particularly robust design and arrangement of the display unit. Furthermore, the display unit can be designed and / or arranged in a particularly ergonomic manner.

[0022] This feature is independent of the other features of the invention.

[0023] The operating device is not necessarily a control knob, especially a rotary knob.

[0024] One aspect of the invention is to design the control element to be movable in such a way that a first displacement movement releases the operation of the household appliance.

[0025] This aspect is not a necessary feature of the invention.

[0026] The first relocation movement could be the release movement.

[0027] The travel distance of the release movement is, for example, in the range of 10 mm to 30 mm and / or in the range of 10° to 90°, in particular 10° to 45°.

[0028] The operating element can be movable in particular electrically, mechanically, especially manually, or magnetically.

[0029] The release movement can be a linear movement, a movement along a helix, or a tilting motion.

[0030] The release movement can be a guided movement. The displacement path can be defined, in particular, by a backdrop, especially a backdrop guide.

[0031] The release movement can be used to unlock the operating device. It can, for example, serve as a child safety lock.

[0032] The household appliance in question may include, in particular, a cooktop, a range hood, a cooktop with integrated range hood, an oven, a microwave, a dishwasher, a coffee machine, a kettle, a pasta boiler, a steamer, an air fryer, a table grill / teppanyaki grill, or a deep fryer. This list is neither limited nor exhaustive.

[0033] The operating device includes a mounting device for attaching it to a kitchen cabinet. For details of the mounting device, reference is made to DE 10 2020 207 162 A1 and DE 10 2024 206 141.7, which are hereby fully incorporated into the present application.

[0034] The control unit can be integrated into the front panel of a kitchen base cabinet, a tall kitchen cabinet, or a drawer. Alternatives are possible. The control unit can also be installed in a worktop, a wall, or another flat surface.

[0035] According to one aspect, the operating device can have different operating levels, in particular different hierarchical operating levels. The operating device can, in particular, enable a hierarchical control concept.

[0036] In this context, a control level refers to a selection of different setting options.

[0037] Different operating levels allow for menu-driven control and / or operation of the device.

[0038] An operating level can also be mechanically predetermined. It can correspond to a displacement position, especially in a direction perpendicular to a rotational axis about which the operating element can be rotated.

[0039] Different operating levels can be accessed, in particular, by pulling out and / or pushing in the control element.

[0040] A mechanical movement, particularly a horizontal movement, such as pulling out or pushing in the control element, is not strictly necessary to switch between different operating levels. Switching between different operating levels can also be achieved via a touch function and / or by tapping, particularly a spring-loaded tap, for example, clicking or double-clicking the control element or a part thereof. Generally, switching between different operating levels can be done using the control element, particularly by actuating the control element.

[0041] One control level allows for settings such as power levels or temperature levels. Another control level allows for selecting the kitchen appliance to be operated, for example, choosing between a cooktop (especially different cooking zones) and a range hood. A further control level allows for system settings or other adjustments.

[0042] According to one aspect, the control element can be moved in such a way that it is possible to switch between different operating levels by means of a moving movement.

[0043] This feature is not absolutely necessary.

[0044] The shifting movement used to switch between different operating levels is also called the switching shift movement.

[0045] The control unit may include a lighting unit.

[0046] The lighting system can be linked to the position of the control element. In particular, it can be activated differently depending on the position of the control element. Different operating levels can be indicated, for example, by different colored lights.

[0047] This allows for particularly intuitive operation.

[0048] The lighting system may, in particular, include different LEDs or a controllable LED.

[0049] It may be provided that at least a part of the display device, in particular a visible part of the display device, in particular the entire visible area of ​​the display device, moves along with the control element when it is moved.

[0050] In particular, it may be provided that the display unit moves along with the control element when it is pulled out.

[0051] Another aspect is that a function of the household appliance can be controlled or adjusted by operating a control element. This can involve a sliding movement of the control element, or input via a touch-sensitive sensor. Combinations of these methods are also possible.

[0052] The displacement movement for actuating the control element can, in particular, have a movement component different from the release movement. This is not absolutely necessary.

[0053] A rotary displacement movement, particularly a twisting motion, can be used to control or adjust the function of the household appliance. It is also possible to control or adjust a function of the household appliance by applying frontal and / or lateral pressure to the control element, and / or by axially and / or laterally displacing the control element, and / or by tilting the control element.

[0054] This enables a very flexible functionality of the operating device.

[0055] According to another aspect, the control element can have different displacement positions, whereby different functions of the household appliance can be controlled or adjusted using the control element in different displacement positions.

[0056] This means in particular that the control element has a first displacement position and at least a second displacement position different from the first, wherein at least one first function of the household appliance is controllable or adjustable in the first displacement position, and wherein at least one second function of the household appliance different from the first function is controllable or adjustable in the second displacement position.

[0057] The control element can, in particular, have a first displacement position and at least a second displacement position different from the first, wherein at least one function of the household appliance can be controlled or adjusted in at least one of the displacement positions, which is not the case in the other displacement position. The different displacement positions can correspond to different operating levels.

[0058] The control element can, in particular, have a first displacement position and at least a second displacement position different from the first, wherein at least one function of the household appliance can be controlled or adjusted in both the first and second displacement positions, and especially in each of the displacement positions, which is not the case in the other displacement position. The control element can, in particular, control one or more functions of the household appliance in both the first and second displacement positions, and especially in each of the different displacement positions. This is not mandatory. Other aspects are independent of this.

[0059] Positions of the control element in which at least one function of the device can be controlled or adjusted are also referred to as functional positions. In addition to the functional positions, the control element may have an off position in which no functions of the device can be controlled. It is also possible that one of the positions constitutes the off position, and at least one function of the device can be controlled in the off position.

[0060] The control element can have, in particular, two, three, four, or five different displacement positions. It can be provided that the household appliance is switched off when the control element is in a specific displacement position, especially in the first displacement position, which is also referred to as the off position.

[0061] Functions may include, in particular, the selection of a specific device from a list of available devices, the power or power level of a hob, the power or power level of an extractor device, the control of a gas flame, a timer, a temperature setting, general settings of the cooking appliance, in particular a date setting, time setting, location setting or a setting of other individual details, a volume setting, a lighting setting, a program selection, in particular from a selection of cooking programs, or others.

[0062] In particular, it may be provided that a cooktop can be controlled by means of the control element in a first relocation position and that another cooktop or a range hood can be controlled by means of the control element in a second relocation position.

[0063] In particular, it may be provided that a first cooking zone can be controlled by means of the control element in a first displacement position, another cooking zone can be controlled by means of the control element in a second displacement position, and both cooking zones can be controlled together in a so-called bridging function by means of the control element in a third displacement position.

[0064] The control element can be moved into different positions, which correspond to different operating levels, in particular by a linear displacement, especially a horizontal displacement such as pulling it out or pushing it in.

[0065] The device can be controlled, for example, as follows: Initially, the control element is in its home position. This can be the first adjustment position, particularly the off position. The display can be enabled (visible) or hidden. By pushing in and / or pulling out the control element, especially a knob, it can be moved to a second adjustment position. This change in the horizontal position of the control element allows access to a specific operating level. The display can also move horizontally with the control element. In this operating level, a specific function can be set, for example, by rotating the control element and, in principle, the display as well. For instance, the power level of a cooktop or extractor hood can be adjusted, or a menu item can be selected within a control menu.By pushing the control element in further and / or pulling it out, another position can be reached. This further change in horizontal position allows access to another operating level. The display can also move horizontally in this way. In this operating level, a specific function can be set, for example, by rotating the control element and, in principle, the display as well. For instance, the power level of a cooktop or extractor hood can be adjusted, or a menu item can be selected in a control menu. Finally, the control element and the display can be returned to their home position.

[0066] The display device can be oriented, in particular at least partially, and especially completely, horizontally, obliquely, especially obliquely forwards, or vertically.

[0067] This can improve the ergonomics of the operating device.

[0068] The display orientation can be adapted, in particular, to the arrangement of the operating device in the kitchen furniture.

[0069] The display device can be arranged, in particular, with an angle of inclination in the range of 0° to 60°, in particular of at most 45°, in particular at most 30°, in particular at most 15°.

[0070] The angle of attack can also be at least 10°.

[0071] The display device can have a viewing angle of no more than 70°, in particular no more than 60°, in particular no more than 50°.

[0072] This improves the visibility of the display setup.

[0073] The viewing angle is the maximum angle between the viewing direction of an average user in a typical position in front of the appliance and a surface normal of the display. The surface normal can have a location-dependent orientation for curved displays. A small viewing angle allows for good visibility of the display. If the viewing angle becomes too large, the readability of the display deteriorates.

[0074] The display device, in particular a display surface, can be flat or curved. It can be arranged on a ring, in particular a cylindrical shell or section thereof, or on a truncated conical shell or section thereof. Alternative arrangements are possible.

[0075] The display device, in particular a display surface, can extend around a central axis of the operating device. It can extend around the central axis of the operating device over an angular range b of 5° to 120°, in particular at most 100°, in particular at most 90°, in particular at most 80°.

[0076] This ensures good readability.

[0077] An extension over the entire circumference (b = 360°) is also possible.

[0078] The display device, in particular the display area, can be designed as a single piece or in multiple parts.

[0079] The display area can be a single, continuous surface. It can also have several separate, and in particular spaced-apart, sub-areas, especially simply connected sub-areas.

[0080] The operating device can have one or more operating areas. In particular, it can have different operating areas, for example, a rotary area and a touch area.

[0081] The control unit can have one or more display areas. It can, in particular, have different display areas. It can, in particular, have an alphanumeric display and a graphic display. The control unit can also be linked to a display, in particular a separate display. The display can be attached to the cooktop, in particular integrated into the cooktop. It can also be an external display. The control unit can, in particular, be linked to the display of a mobile device, in particular a mobile phone, tablet, laptop, or wearable. This can improve, and in particular simplify, the menu-driven control and / or operation of the device.

[0082] The display device can include a screen (display). This can be, in particular, an LED display, an LCD display, a TFT display, or an OLED, AMOLED, MicroLED, or matrix LED display. It can also be an ePaper display. Alternatives are also possible.

[0083] The operating device, in particular the display device, may also have a touch-sensitive display.

[0084] The display unit may also include a projection unit. The projection unit may be a DLP (Digital Light Processing) projector or a DMD (Digital Micro-Mirror Device) projector.

[0085] The projection device can be designed to project information for setting the household appliance onto a surface of the control unit. In particular, the information can be projected onto the surface of the control element, for example, an outer and / or inner surface and / or its front surface. The projection device can also project such information onto a floor, ceiling, or wall. Furthermore, the projection device can project information onto other objects, such as pots or pans, or onto transparent surfaces (head-up display technology).

[0086] The display device may, in particular, include a projection device that projects from the surface of the hollow knob. It can project to the rear or to the front.

[0087] The projection device may include optical components, in particular one or more mirrors, lenses or prisms.

[0088] The display device may not be permanently visible. It may be concealed, particularly invisible, in a specific position of the control element, especially in the off position. For example, the display device may not be visible to the user in a specific position of the control element.

[0089] The control element can be transparent or translucent.

[0090] The control element can be made of metal, plastic, wood, stone, or glass. Combinations are also possible. Alternatives are also available.

[0091] According to another aspect, the display device can be arranged axially behind the control element. In particular, it can be positioned between a wall of kitchen furniture, especially a front panel, and the control element.

[0092] In this case, it can be particularly reliably protected against damage by the control element.

[0093] According to another aspect, the display device can be axially planar and radially convex, or axially diagonal and radially convex, or axially diagonal and radially rectangular. The terms axial and radial refer specifically to the axis of rotation around which the control element can be turned. The axial direction can be oriented perpendicular to the front of the kitchen unit on which the control device is located. The radial direction is perpendicular to the axial direction.

[0094] Each of these training methods enables particularly good readability of the display device.

[0095] According to another aspect, the operating element can be ring-shaped, elliptical, or polygonal. In particular, the operating element can be designed as a hollow toggle.

[0096] It can have a circular or a non-circular, in particular an elliptical or polygonal, cross-section.

[0097] This makes it possible to use the space surrounding the control element for other functional components and / or for displaying information.

[0098] The display device can be located, in particular, on an outside of the mounting device and / or on an inside of the control element.

[0099] According to another aspect, the operating device may include a lighting device with one or more light sources, especially in the form of LEDs.

[0100] The LEDs can be of different colors. They can also be controllable LEDs.

[0101] According to another aspect, the control element can have a touch-sensitive sensor. It can also have a button and / or a switch.

[0102] The touch-sensitive sensor can be flat or curved. In particular, it can have a flat or a curved surface.

[0103] The touch-sensitive sensor can be arranged on an outer surface of the control element, particularly on its circumference. This means that the control element can be operated by touching its outer surface.

[0104] Particularly in the case of a hollow toggle, the touch-sensitive sensor can be arranged on an inside of the operating element, especially on the circumferential side.

[0105] The operating device can, in particular, enable a hybrid operating concept. This means that different input methods are possible for operation. Input methods can include, in particular, a selection of mechanical representations, touch signals, visual signals (especially gesture control), and acoustic signals (especially voice control).

[0106] The operating device may, in particular, include one or more optical sensors. This enables gesture control.

[0107] The operating device may, in particular, include one or more acoustic sensors, especially microphones. This enables voice control.

[0108] According to another aspect, the operating device may include means for generating haptic feedback, in particular in the form of a structure-borne sound transducer or an eccentric.

[0109] This enables haptic feedback.

[0110] According to another aspect, the operating device can be designed to be context-sensitive.

[0111] This means that it is adaptable to different requirements, especially to different household appliances. In particular, it can be designed to automatically adapt to different requirements, especially to different household appliances.

[0112] Further objectives of the invention are to improve a cooktop and a range hood.

[0113] These tasks are solved by a cooktop and a range hood with a control unit as described above.

[0114] The cooktop can be a combination appliance consisting of a cooktop and a range hood. Such a combination appliance is also known as a cooktop extractor.

[0115] According to one aspect, the control element can be used in a first relocation position to control the hob and in a second relocation position to control the extractor fan.

[0116] The cooktop, in particular the cooktop extractor, can be modular in design. It can also be designed as a prefabricated unit. For details of such a prefabricated unit, reference is made to WO 2012 / 146 237 A1, in particular the embodiment shown therein. Figures 12 to 16 , referred.

[0117] The following section briefly describes further optional details and advantages of the operating system. The following features are not mandatory. They can be implemented individually, in combination with each other, or in combination with one or more of the features described above.

[0118] When switched off, the control element can cover and thus protect the display unit.

[0119] When the kitchen appliance is switched on, the control element can be moved into an operating position. In particular, it can be moved forward in an axial direction. This may expose the display unit, making it visible.

[0120] The display unit can feature a high-resolution graphic display.

[0121] The control panel allows for particularly ergonomic operation of the kitchen appliance.

[0122] The operating device allows for particularly ergonomic readability of the display.

[0123] The operating system enables a flexible, intuitive operating and / or display concept.

[0124] The flexible arrangement and / or orientation of the display unit allows for additional flexibility in the design of the operating unit.

[0125] The operating device allows for easy assembly.

[0126] The control unit can control different kitchen appliances and / or their components.

[0127] The control element can have one or more touch-sensitive areas. In particular, it can have a touch control surface axially centered. In particular, it can have one or more touch control surfaces around its circumference.

[0128] The display unit can have one or more 7-segment displays.

[0129] The display setup may feature backlit icons.

[0130] The mounting device is suitable for installation in a drilled hole with a diameter of 10 mm to 70 mm. Alternatives are possible.

[0131] The mounting device can, in particular, enclose a receiving space. It can preferably be tubular in shape. Elements of the control device, in particular control electronics, especially one or more printed circuit boards with control electronics, can be arranged in the receiving space. For details, reference is made to DE 10 2020 207 162 A1.

[0132] The control element can have different degrees of freedom of displacement. In particular, it can have a combination of one or more of the following degrees of freedom of displacement: linear displacement, rotational displacement, and pivoting, especially about an axis perpendicular to the axial direction of the control device, and especially about an axis parallel to a front face of the kitchen furniture into which the control device is installed.

[0133] A multi-component travel path can be provided to unlock and / or activate the operating device. For example, it is possible to design the operating device such that the operating element must be both linearly displaced and rotated for activation. For example, the operating device can be unlocked and / or activated by pushing in and simultaneously or subsequently rotating a component, in particular the operating element.

[0134] The travel distance of the release movement is, for example, in the range of 10 mm to 30 mm and / or in the range of 10° to 90°, in particular 10° to 45°.

[0135] To provide haptic feedback, magnets or mechanical elements, such as a toothed ring with a spring that presses into the toothed ring, can be used.

[0136] Repositioning the control element can be assisted by lifting cylinders. In particular, a push-pull mechanism can be provided. Repositioning the control element can be activated by pushing. A push-to-turn mechanism can also be provided.

[0137] The operating device may include a hollow shaft.

[0138] The control element can be arranged on a hollow shaft.

[0139] Electronic components of the operating device can be integrated into the hollow shaft.

[0140] The operating element can be designed as an operating ring, in particular as a glass ring or metal ring.

[0141] The control element can release the display device by a linear displacement, particularly forwards, and / or by a tilting, particularly about a horizontal axis.

[0142] The operating element can be mounted without stops. In particular, it can be mounted without stops on the mounting device.

[0143] A stop may also be provided to define an endpoint, in particular a zero point.

[0144] The control element may be removable. In particular, it may be removable and mounted on the mounting device.

[0145] The operating device can be designed in such a way that the display device remains attached to the kitchen furniture when the operating element is removed.

[0146] The display device can also be arranged internally, in particular internally on or within the control element. It can be arranged, in particular, on an inwardly facing surface, especially a surface facing the axis of the control element. This surface can be cylindrical or frustoconical. Alternative geometries are possible.

[0147] The display area can be formed by a portion of the control element. This is particularly possible if the control element is translucent.

[0148] The display area can be formed in particular by an area on the front of the control element and / or by a circumferential area of ​​the control element.

[0149] The control element can be backlit.

[0150] The display unit may be backlit.

[0151] The operating device may include a rotary encoder.

[0152] The mounting device may include a mounting sleeve. The sleeve may be formed as a single unit with the central piece. Alternatively, the sleeve and central piece may be separate components. The sleeve may be connected to the central piece, particularly during the installation of the operating device.

[0153] The cuff can, particularly when installed, rest against the furniture front or be set back from the furniture front by a maximum of 2 mm, and in particular by a maximum of 1 mm. An intermediate element, especially an intermediate ring, can be arranged between the cuff and the furniture front. This allows for the compensation of unevenness. The intermediate element can also be used to insulate the cuff from the furniture front.

[0154] The display device can be integrated into the cuff.

[0155] The display device may, in particular, be oriented and / or designed such that it has an upward-facing component and a forward-facing component.

[0156] The display unit can be adapted to different installation situations and / or different user configurations, especially different body sizes. For example, the orientation of the display unit, particularly the viewing angle, can be selected depending on the installation position of the operating unit and / or the user's height.

[0157] The display device, in particular its display surface, can be designed such that the display area is optimized, and in particular maximized, so that a maximum specified viewing angle for a typical user is not exceeded. The maximum specified viewing angle can be at most 80°, and in particular at most 70°. A typical user can be assumed to have their eyes positioned, for example, at a height of 140 cm to 180 cm and at a distance of, for example, 5 cm to 25 cm from the appliance, which is, for example, installed in a kitchen base cabinet with a maximum height of 95 cm.

[0158] Further advantages and details of the invention will become apparent from the description of an exemplary embodiment with reference to the figures. These show: Fig. 1 a schematic representation of a household appliance in the form of a cooktop extractor system with two cooktops, an extractor fan and five control knobs, Figs. 2A and 2B sectional views of a control knob according to one variant, Fig. 2C a view of the control knob according to the Fig. 2A and 2B From the front, Figs. 3A to 3C views according to the Figs. 2A to 2C Another variant of a control knob, Figs. 4A to 4C views according to the Figs. 2A to 2C Another variant of a control knob, Fig. 5A and 5B views according to the Fig. 2B and 2C Another variant of a control knob, Fig. 5C, a corresponding view Fig. 5B according to another variant, Fig. 6A a view according to Fig. 2B Another variant of a control knob, Fig. 6: Legs View of the control knob according to Fig. 6A From the front, with the operating element removed to illustrate the design of a display device, Figs. 7A and 7B. Views according to the Fig. 6A and 6BAnother variant of a control knob, Fig. 8A and 8B views according to the Fig. 6A and 6B another variant of a control knob, Fig. 9 a view according to Fig. 2B Another variant of a control knob, Fig. 10A and 10B views according to the Fig. 2B and 2C Another variant of a control knob, Fig. 11A and 11B views according to the Fig. 2B and 2C a further variant of a control knob, Fig. 12 a sectional view of a further variant of a control knob, Fig. 13 a sectional view of a further variant of a control knob, Fig. 14A and 14B views according to the Fig. 2A and B another variant of a control knob, Fig. 14C a sectional view along line AA in Fig. 14BFig. 15 a perspective view of another variant of a control knob, Fig. 16 a sectional view of another variant of a control knob, Fig. 17 a perspective view of another variant of a control knob, Fig. 18 a perspective sectional view of another variant of a control knob, Fig. 19 a sectional view of another variant of a control knob, Figs. 20A and 20B views according to Fig. 2A and 2B Views of another variant of a control knob, Fig. 21A and 21B; views of another variant of a control knob in the switched-off state, Fig. 22A and 22B; views of the control knob according to the Figs. 21A and 21B Views of another control knob in the switched-on state, Figs. 23A and 23B; views of the control knob in the switched-off state, Figs. 24A and 24B. Fig. 23A and 23BIn the switched-on state, Fig. 25 shows a schematic view to illustrate the viewing angle, and Fig. 26 shows a schematic view to illustrate the angle of inclination of the display device. Figs. 27A to 40C show further views of different variants of a control knob. Figs. 41A to 41E show views of another variant of a control knob.

[0159] The following section describes the general components of a kitchen appliance, specifically a cooktop extractor system 1. The cooktop extractor system 1 comprises at least one cooktop 2. In the case of the Fig. 1 The cooktop extractor system 1, shown as an example, provides for two cooktops 2. The cooktop extractor system 1 includes at least one extractor hood (50). In the example shown in the Fig. 1 In the exemplary cooktop extraction system 1, exactly one extraction device (50) is provided.

[0160] The cooktops in section 2 can be any type of cooktop. In particular, they can be induction cooktops, electric cooktops, infrared cooktops, gas cooktops, teppanyaki cooktops, wok cooktops, warming plates, grills, or other types of cooktops.

[0161] During the Fig. 1 In the exemplary configurations shown, control knobs 3 are provided for each of the cooktops 2. In principle, a single control knob 3 may suffice for operating the cooktops (2) and / or the extractor hoods (50). Operation via touch-sensitive sensors, which can be integrated into the cooktops 2 or the control knobs 3, is also possible. Operation via a separate control module is also conceivable.

[0162] The different operating methods can also be combined with each other.

[0163] The following section describes different variants of an operating device in the form of a control knob 3 in more detail.

[0164] Obvious similarities between the different variants of the control knob 3 are not described anew for each variant. In this regard, please refer to the preceding description.

[0165] The control device is not limited to operating cooktops (2) or extractor hoods (50). It can be used universally, i.e., for any household appliance.

[0166] The operating devices described below are particularly suitable for operating, and especially controlling, kitchen appliances or household appliances. They can be used specifically for operating, and especially controlling, cooktops, extractor hoods, cooktops with integrated extractor hoods, ovens, steam cookers, warming drawers, deep fryers, dishwashers, microwaves, and other household appliances, such as washing machines, tumble dryers, or other electrical appliances.

[0167] The control knobs 3 can be installed in the front panel 4 of a kitchen unit, particularly in the form of a kitchen base cabinet 5. This is not to be understood as a limitation.

[0168] In the Figures 2A to 2C A first variant of the control knob 3 is shown. Further schematic views of a corresponding variant are shown in the Figures 27A to 27D and 28A to 28D depicted.

[0169] In the Fig. 2A ( Figs. 28A to 28D ) a control element 6 is in an off position.

[0170] The operating element 6 can be displaced in an axial direction 7. It is particularly evident from the one in the Fig. 2A shown off position in one in the Fig. 2B ( Figs. 27A to 27D The second storage position shown is movable. The second relocation position is also referred to as the operating position.

[0171] In the first relocation position, display unit 8 is concealed by the control element. In the second relocation position, display unit 8 is uncovered and is then clearly visible.

[0172] The display device 8 can be arranged, in particular, on a cuff 12 of the mounting device. This is not absolutely necessary.

[0173] The cuff 12 can essentially rest against the front panel 4 of the kitchen furniture. However, it can be separated from the front panel 4 by an intermediate element 13. The intermediate element 13 can, in particular, be made of an elastic and / or electrically insulating material.

[0174] The control knob 3 has a mounting device with a central piece 9. The central piece 9 can surround a receiving space 10. Components, in particular electronic components, especially printed circuit boards, particularly circuit boards of the control electronics, can be arranged in the receiving space 10. The mounting device serves in particular to attach the control knob 3 to the front panel 4. It can also serve as a mounting socket for components of a control device. For further details, reference is made to DE 10 2020 207 162 A1.

[0175] The mounting device can be secured with a lock nut 11 in the front panel 4. Alternative mounting concepts are possible.

[0176] In a front view ( Fig. 2C In particular, only control element 6 may be visible.

[0177] The control element 6 can be made of metal or plastic. Alternatives are also possible.

[0178] In the Fig. 2A and 2B ( Figs. 27A to 27D and Figs. 28A to 28D In the examples shown, the display unit 8 is slanted.

[0179] In the Figs. 3A to 3C Figure 3 shows another variant of the control knob. Further schematic views of a corresponding or similar variant are shown in the Figures 31A to 31D and 32A to 32D depicted.

[0180] In this variant, the display device 8 is horizontally oriented. It can be flat or curved. In particular, it can be arranged on a cylindrical section of the mounting device, especially the central piece 9. It can completely surround the central axis 16 of the mounting device ( Fig. 31A to D and 32A to D ) or only partially surrounded ( Fig. 3A to C ).

[0181] The operating device, in particular the operating element 6, may have a touch sensor. This is possible regardless of other details of the operating knob 3.

[0182] In another in the Figs. 39A to 39E In the illustrated variant of the control knob 3, the display area 22 of the display device 8 is arranged on the inside of a ring-shaped control element 6.

[0183] The display area 22 can be used here as in the variants according to the Fig. 3 , 31 , and 32horizontally or as in the variants according to the Fig. 2 , 27 and 28 be angled diagonally forwards.

[0184] In this variant, the control element 6 can be fixed in the axial direction. It can also be moved in the axial direction, as in other variants.

[0185] The control element 6 according to the Figs. 4A to 4C The control element 6 has a rotating ring 14. It also has a touch-sensitive surface 15 (touch field; touch sensor). The touch-sensitive surface 15 is centrally located around a central axis 16. Alternative arrangements are possible.

[0186] The touch-sensitive surface 15 can be circular. Alternative designs are possible.

[0187] The touch-sensitive area 15 can be part of a touch display. In particular, it can also be used to output information.

[0188] In the Fig. 5A and 5B , Figs. 35A to 335E and Figs. 37A to 37E In the illustrated variants of the control knob 3, the cuff 12, in particular the display device 8, extends radially beyond the control element 6.

[0189] The display unit 8 is therefore in a frontal view ( Fig. 5B ) visible.

[0190] The cuff 12 is visible in the front view as a ring around the control element 6.

[0191] The display unit 8 can be oriented obliquely upwards and forwards. It can, in particular, occupy only a relatively small angular range b around the central axis 16. The angular range b can, for example, be in the range of 5° to 10°. It can also be up to 15°, up to 30°, up to 45°, up to 60°, or up to 90°. Alternative angular ranges are also possible. The display unit 8 can, in particular, completely surround the central axis 16 ( Fig. 35A to E ). The angle b is then 360°.

[0192] The display unit 8 can, especially in a frontal view ( Fig. 5B ) be shaped like a circular sector. The display device 8 can also be rectangular, particularly in a frontal view or in a top view ( Fig. 37A and B ).

[0193] A variant with a relatively large angular range b of a circular sector-shaped variant of the display device 8 is exemplified in the Fig. 5C depicted.

[0194] The display device 8 can, in particular, extend over a section of the surface of a truncated cone. The front face of the display device 8 can also be curved. In particular, it can be convex or concave. This is also possible for the other variants of the control knob 3.

[0195] In the Fig. 6A and 6BAn exemplary control knob 3 is shown, in which the display device 8 is axially planar and radially convex. The display device 8 can, in particular, extend over a section of a cylindrical surface.

[0196] In the Figs. 7A and 7B , Figs. 33A to 33D and Figs. 34A to 34D Variants are shown in which the display device 8 is axially diagonal and radially convex. The display device can, in particular, extend over a section of the surface of a truncated cone.

[0197] In the Figs. 8A and 8B , Figs. 29A to 29D and Figs. 30A to 30D Variants are shown in which the display device 8 is axially diagonal and radially rectangular.

[0198] In all three variants ( Fig. 6 , Fig. 7 , 33 and 34 and Fig. 8 , 29 and 30) the display unit 8 can be completely obscured by the control element 6 in a frontal view.

[0199] In the Figs. 9A and 9B A sectional view and a frontal view of another variant of the control knob 3 are shown as examples. In this variant, the display unit 8 includes a projection unit 17. The projection unit 17 includes a light source 18. It may have a deflecting element, in particular in the form of a prism 19 and / or a mirror.

[0200] The projection device 17 can have one or more imaging optical elements, in particular in the form of lenses 20 or mirrors.

[0201] The projection device 17, in particular the light source 18, can be arranged on a circuit board 21. The circuit board 21 can in particular be arranged in the receiving space 10 of the central piece 9.

[0202] The projection device 17 and in particular the display device 8, which in this case may be a projection display, are integrated in particular in the control knob 3, especially in the mounting device.

[0203] A freeform surface can serve as the display area 22 of the display unit 8. This is possible with all variants and can lead to advantages, particularly with regard to the arrangement and geometric design of the display area 22.

[0204] In the Fig. 10A and 10B , Fig. 40A Variants of the control knob 3 are shown for temperatures up to 40°C, in which the control element 6 is designed as a hollow knob. In this case, the control element 6 is specifically ring-shaped.

[0205] The variants according to the Figures 10 and 40They differ, among other things, with regard to the details of the fastening device. The details of the fastening device can essentially be combined arbitrarily with the other details of the operating knob 3. For different variants and details of the fastening device, reference is made to DE 10 2024 206 141.7, which is hereby fully incorporated into the present application.

[0206] In a frontal view, the front panel 4 may be visible in the central area of ​​the control element 6. It is also possible that, in a frontal view, the front of the central piece 9 may be visible in the central area of ​​the control knob 3.

[0207] In the variant according to Fig. 10 The display device 8 can include the projection device 17, by means of which information can be projected onto a display surface 22 located outside the control element 6.

[0208] In the variant according to Fig. 40The display device 8 can include a projection device 17, by means of which information can be projected onto a display surface 22 located inside the control element 6.

[0209] The display area can also be integrated into the control element 6.

[0210] Combinations are also possible.

[0211] In the Figs. 11A and 11B Another variant of the control knob 3 is shown. In this variant, the display unit has two projection units 17 and 23. The projection units 17 and 23 can each have their own light sources 18 and 24. They can have completely independent, in particular separate, light paths. They can also have partially overlapping light paths. In particular, they can also share optical components. This simplifies the design and reduces costs.

[0212] The projection device 23 can have its own light source 24. The projection device 23 can be used for a high-quality projection into the central area of ​​the control knob 3.

[0213] In the variant shown only schematically according to Fig. 12 The projection device 23 can be used for projection onto the front panel 4 of the kitchen furniture.

[0214] In the variant, which is also only shown schematically according to Fig. 13 The projection device 23 can be used for projection onto a floor area 25.

[0215] Using the projection device 23, control parameters for the household appliance, such as power levels, and / or a time and / or a date and / or a temperature reading can be projected.

[0216] This is independent of the other details of the different variants of the control knob 3.

[0217] In the Figs. 14A to 14C The schematic diagram shows details of another variant of the control knob 3.

[0218] According to this variant, the control element 6 can be moved electrically. In particular, it can be moved by motor.

[0219] In the Fig. 14B A schematic representation of an extension mechanism 26 is shown.

[0220] Furthermore, in the Fig. 14C A mechanical detent 27 is shown schematically.

[0221] The mechanical detent 27 enables haptic feedback.

[0222] In the schematic representation in the Fig. 15 In the illustrated variant of the control knob 3, the movement of the control element 6 can be assisted by a spiral spring 28. Generally, the movement of the control element 6 can be assisted by mechanical, magnetic, or electrical means. Combinations of these are also possible. This is independent of the further details of the different variants of the control knob 3.

[0223] The travel path of the control element 6 can be guided by means of a cam guide 29.

[0224] In the Fig. 17 It is schematically indicated that magnets 30 can be used to give the user haptic feedback.

[0225] In general, the operating device may include means for generating haptic feedback. Haptic feedback can be generated mechanically, for example via a toothed ring, magnetically, in particular using one or more magnets, or using a structure-borne sound transducer. This is independent of the other details of the different variants of the control knob 3.

[0226] In the Fig. 18 The schematic representation shows that the relocation of the control element 6 can be supported by means of a lifting cylinder 31.

[0227] In the variant of the control knob 3 according to Fig. 19The fastening device is a hollow shaft 32. The operating element 6 is arranged on the hollow shaft 32. The operating element 6 can be designed as a ring, in particular as a glass ring or a plastic ring.

[0228] The operating element 6 can be designed to be translucent.

[0229] The operating element 6 can be slidably arranged on the shaft 32.

[0230] The display unit 8 can be located axially 7 behind the control element 6.

[0231] Electrical and / or electronic components, in particular circuit boards, can be arranged in the hollow shaft 32.

[0232] During the Fig. 20A and 20B In the schematically depicted variant of the control knob 3, the control element 6 can be pivoted about a horizontal pivot axis 33. The control element 6 can, in particular, be moved into a release position ( Fig. 20B) be pivoted, in which the display unit 8 is enabled.

[0233] The pivoting movement can be combined with a linear movement, particularly in the axial direction 7. This ensures that the control element 6 does not strike the front panel 4 when pivoting.

[0234] A tiltable version of the control knob 3 can advantageously be combined with the provision of a projection device 17 and 23 (not shown). The control element 6 can, in particular, serve as a light guide element.

[0235] The control element 6 may also include components of the projection device 17, 23, in particular optical components, especially a mirror, a prism, a lens or a combination of corresponding components.

[0236] In the Figs. 21 to 23 , 24A , 24B , 36A to 36E and 38A to 38EIn the illustrated variants of the control knob 3, the control element 6 can be transparent or translucent. The control element 6 can, in particular, be made of glass or a transparent or translucent plastic. It can, in particular, be made of clear glass or frosted glass. It can have a roughened surface.

[0237] In these variants, the operating element 6 does not need to be movable. It can be fixed, particularly in the axial direction. However, it can also be movable in these variants, especially rotatable.

[0238] At the in Fig. 21 and 22 In the variant shown, the operating element 6 is disc-shaped.

[0239] While in the switched-off state ( Figs. 21A and 21B ) in a frontal view ( Fig. 21B ) essentially only the control element 6 is visible, when switched on ( Figs. 22A and 22B ) in the frontal view ( Fig. 22B) the display unit 8 is visible. It may be visible in particular through the control element 6.

[0240] This is accordingly the case in the Fig. 23A and 23B and 24A and 24B The case is the variant of the control knob 3 shown.

[0241] In contrast to the one in the Fig. 20A and 20B and 22A and 22B In the depicted variant, the operating element 6 is used in the variant according to the Figures 23A and 23B and 24A and 24B It is cylindrical or bowl-shaped. It has a cylindrical outer circumference and a top plate. The cylindrical outer circumference serves primarily as a handle.

[0242] During the Fig. 23 and 24 In the intended variant, the control unit includes a lighting element. The lighting element can comprise one or more LED 40s. Sectional drawings 23A and 24A show two LED 40s as examples.

[0243] Furthermore, the operating device, according to the variant in the Fig. 23 and 24 a touch-sensitive sensor 41 (touch sensor). The touch-sensitive sensor 41 can be arranged on the circumferential side of the control element 6.

[0244] The touch-sensitive sensor 41 can completely surround the central axis 16. Alternatively, the touch-sensitive sensor 41 can extend only over a partial area, in particular over a maximum of 180°, in particular over a maximum of 120°, in particular over a maximum of 110°, in particular over a maximum of 90°. In particular, it can correspond essentially to the clearly visible area of ​​the control element 6.

[0245] "Clearly visible" here means that the viewing angle for a user in a normal position in front of the household appliance is at most 80°, in particular at most 70°, and in particular at most 60°.

[0246] The control element 6 can also be fixed in place, particularly when using a touch-sensitive sensor 41. It can be fixed on the mounting device, or fixed relative to the front panel 4. In this case, operation can be via the touch-sensitive sensor 41. Alternatively, the control element can also have other sensors, particularly optical and / or acoustic sensors. Such sensors can enable gesture control and / or voice control of the household appliance.

[0247] In the Fig. 25 The concept of the viewing angle EW is explained schematically. The viewing angle EW denotes the angle between a user's viewing direction and a normal to the display device 8, in particular a local normal to the display surface 22.

[0248] A smaller viewing angle results in better visibility. However, from a viewing angle of approximately 80°, the display becomes difficult to read.

[0249] In the Fig. 26 The concept of the angle of attack bA is explained schematically. The angle of attack bA denotes the angle of the front of the display device 8 to a horizontal 36, in particular the angle between the display surface 22 and the horizontal 36.

[0250] An angle of inclination bA > 0, i.e. an oblique orientation of the display surface 22 of the display device 8, facilitates the reading of the display, especially from a distance in the axial direction 7.

[0251] In the Figures 41A to 41E Another variant of control element 6 is shown as an example. In this variant, control element 6 has a so-called "push-to-turn functionality".

[0252] The following are some examples of aspects of the push-to-turn variant: Initially, the control element (6) is in the basic or starting position ( Fig. 41A ). This can be, in particular, the off position. Starting from the basic position, the knob can be moved to a further position, in particular a menu position ( Fig. 41B ), can be pulled out. In the menu position, menu settings can be made (fan, etc.). Starting from the basic position, the knob can be pushed into another displacement position, the basic position Push ( Fig. 41C In this position, both the display and the knob move inwards. In the default "Push" position, the power level can be adjusted. Fig. 41DThe image shows an example of a position at performance level 1. From the basic Push position, the knob can be pulled out to another menu position ( Fig. 41E In this position, menu settings can be adjusted without changing the power level. The display remains pressed in.

[0253] Possible menu settings include: child lock, fan, cooking zone timer, pot detection.

Claims

1. Operating device (3) for a household appliance (2) comprising 1.

1. an operating element (6), 1.

2. a display device (8) and 1.

3. a fastening device for attaching the operating device (3) to a kitchen cabinet (5), 1.

4. wherein the operating element (6) has a first displacement position and at least a second displacement position different from the first, wherein at least one first function of the household appliance is controllable or adjustable in the first displacement position, and wherein at least one second function of the household appliance different from the first function is controllable or adjustable in the second displacement position.

2. Operating device (3) according to claim 1, characterized by the fact that it has a display device (8) which remains stationary when the control element (6) is actuated.

3. Operating device (3) according to one of the preceding claims characterized by the fact thatit has different operating levels, whereby it is possible to switch between different operating levels using the control element (6).

4. Operating device (3) according to one of the preceding claims characterized by the fact that by means of an actuation of the control element (6) a function of the household appliance (1, 2) can be controlled or adjusted, wherein for actuation 4.

1. a displacement movement of the control element (6) serves and / or 4.

2. a touch-sensitive sensor (15) serves.

5. Operating device (3) according to one of the preceding claims characterized by the fact that the control element (6) can be moved in such a way that in a first relocation position the display device (8) is covered and in a second relocation position the display device (8) is uncovered.

6. Operating device (3) according to one of the preceding claims characterized by the fact thatthe display device (8) is arranged in an axial direction behind the control element (6).

7. Operating device (3) according to one of the preceding claims characterized by the fact that the display device (8) 7.

1. is axially planar and radially convex, or 7.

2. is axially diagonal and radially convex, or 7.

3. is axially diagonal and radially rectangular.

8. Operating device (3) according to one of the preceding claims characterized by the fact that the operating element (6) is ring-shaped.

9. Operating device (3) according to one of the preceding claims characterized by the fact that it has a lighting device with one or more light sources (18).

10. Operating device (3) according to one of the preceding claims characterized by the fact that the control element (6) has a touch-sensitive sensor (15).

11. Operating device (3) according to one of the preceding claims characterized by the fact thatit has a structure-borne sound transducer.

12. Operating device (3) according to one of the preceding claims characterized by the fact that She is trained to be context-sensitive.

13. Cooking surface (2) with 13.

1. one or more cooking points and 13.

2. a control device (3) according to one of the preceding claims.

14. Combination appliance comprising 14.

1. a cooktop (2), 14.

2. a range hood and 14.

3. a control unit (3) with at least one control element (6), 14.

4. wherein the control element (6) has a first displacement position and at least a second displacement position different from the first, wherein in the first displacement position the cooktop (2) can be controlled by means of the control element (6) and in the second displacement position the range hood (50) can be controlled by means of the control element (6).

15. Extractor hood (50) with an operating device (3) according to one of claims 1 to 12.

Images