Induction cooking device

Abstract

The invention relates to an induction cooking device. The induction cooking device comprises: a bearing base provided with a control unit and configured to be arranged below a console; and-a frame connected in use to the carrier base and configured to be placed in an opening arranged in the console, where the frame comprises an induction device comprising an induction coil for heating by induction a pot placeable on the frame, where the induction device is connectable to the carrier base.

Description

[0001] This invention relates to an induction cooking device. It also relates to a method for integrating an induction cooking device.

[0002] Induction heating plates are known in practice. An induction heating plate is a heating plate in which a pot can be heated by induction heating. Known induction heating plates typically include an induction coil for generating a magnetic field configured to heat a pot made at least partially of a magnetizable material. In the induction coil, a power supply voltage is converted into alternating current with a defined frequency, according to the required heat generation. Heating is generated by eddy currents that begin to flow through the pot due to changes in the magnetic field. These eddy currents are converted into heat due to the pot's resistance. In known induction heating plates, the induction coil and control unit are covered by a glass-ceramic plate fixedly connected to it.

[0003] Known heating plates typically have a glass-ceramic plate on which multiple cooking pans are mounted. For this purpose, multiple induction coils are arranged beneath the glass-ceramic plate, one for each cooking pan. Alternatively, induction cooking devices also exist, in which each cooking pan comprises a separate glass-ceramic plate.

[0004] Known induction cooking devices are typically fixedly attached (e.g., glued or bonded) to an opening in the kitchen countertop. A disadvantage is that the glass-ceramic surface is difficult to clean thoroughly, reducing hygiene during cooking. Another drawback is the difficulty in replacing the glass of an induction cooking device if it is damaged (e.g., due to scratches).

[0005] The purpose of this invention is to eliminate or at least reduce the aforementioned problems. A specific object of this invention is to provide a sensor-activated cooking device that improves hygiene during the cooking process and facilitates cleaning.

[0006] This objective is achieved by a sensor-controlled cooking device, wherein the sensor-controlled cooking device includes:

[0007] - A support base, which houses the control unit and is configured to be positioned below the control panel;

[0008] - A frame, which is connected to a support base in use and is configured to be placed in an opening arranged in a worktable, wherein the frame includes a sensing device including an induction coil for inductively heating a pot that can be placed on the frame, wherein the sensing device can be connected to the support base.

[0009] The interconnected support base and frame enable the integration of induction cooking devices in a simple manner.

[0010] Another advantage is that, due to the structure of the induction cooking appliance, a distance can be provided between the frame in which the induction device is housed and the worktable. Alternatively or additionally, the distance between the pot and the worktable is also increased. This results in less heat being transferred to the worktable, thereby reducing the likelihood of the worktable cracking and / or splitting during the use of the induction cooking appliance.

[0011] The structure of this invention provides additional thermal separation between the frame and the control panel. This protects the control panel from overheating, thereby greatly reducing the likelihood of the control panel cracking and / or splitting.

[0012] Another advantage is that the frame is securely anchored in the opening of the operating table through the connection between the frame and the load-bearing base. This largely or completely prevents undesirable movement of the frame arranged in the opening.

[0013] Because the support base is located below the operating table, and the frame can be placed into the opening from above, a clamping connection is achieved between the support base and the frame during use when they are connected, with the operating table at least partially positioned between them. This clamping can optionally be achieved by adjusting screws arranged on the support base and abutting against the underside of the operating table. The supporting edges of the frame preferably rest on the upper side of the operating table.

[0014] The sensing device can be connected to a support base, such that the control unit of the support base is operatively connected to the induction coil. This allows the control unit to set the amount of current passing through the induction coil. The control unit can be configured to set the frequency of the induction coil. The support base may include a power supply connection configured to be connected to mains voltage. The sensing device can be operatively connected to the support base.

[0015] The frame may be a receptacle in which the induction coil is positioned. At least during use, the support base is connected to the frame. The support base is preferably physically connected to the frame. During use, the induction coil is operatively connected to a control unit of the support base, enabling the support base to set the amount of current passing through the induction coil, thereby setting the heat released to the removable pot support element.

[0016] The frame may include a coil support and a pot support element. The coil support is preferably fixedly connected to the support base, for example, via a bracket. The coil support may include a sensing device. The pot support element is preferably connected to the coil support, preferably by a physical connection. For mounting the induction cooking device, the support base and frame can be positioned under the work surface. The frame can then be placed through an opening in the work surface, and the pot support element is then connected to the coil support. This connection may include a bayonet closure or a snap-fit ​​connection. Other connections, such as clamp connections or screw connections, are also possible. The pot support element may have a supporting edge configured to rest on the outer peripheral edge of an opening in the work surface. This enables efficient mounting of the induction cooking device on the work surface.

[0017] Another advantage is that the pot support element can be easily replaced using this structure. This is particularly advantageous when the pot support element is a glass plate, as the glass plate may be scratched during use.

[0018] The frame may be made at least in part of ceramic materials, ABS, heat-resistant plastics (such as Ketron PEEK, Techtron, polyamide 66 or nylon 66, PPS, Fluorosint and / or Symalit PVDF), stainless steel, steel and / or aluminum.

[0019] The support base preferably has an upper side that extends parallel to the lower side of the operating table during use. The upper side of the support base faces the lower side of the operating table. The upper side of the support base is preferably plate-shaped.

[0020] In use, connection can also be understood as connection to the load-bearing base of the frame, or alternatively, connection to the load-bearing base of the frame.

[0021] In one embodiment of the invention, a plurality of frames are disposed on each support base, each frame being configured to be placed through a corresponding opening arranged in the operating table. In the context of this application, "a plurality of frames" should be understood to mean at least two, at least three, at least four, at least five, or at least six frames.

[0022] In one embodiment of the invention, the frame can be placed from above the worktable into an opening to connect to a support base disposed below the worktable.

[0023] Since the frame can be placed above the worktop and the support base can be placed below the worktop, the arrangement of the induction cooking device is greatly simplified.

[0024] In an alternative embodiment of the invention, at least a portion of the support base and frame may be placed from below into an opening in the worktable to connect to a pot support element arranged above the worktable.

[0025] Since both the support base and frame can be placed from below, only the pot support element still needs to be connected to the rest of the frame from above the worktop. This greatly simplifies the placement of the induction cooking device on, within, or on the worktop.

[0026] In the context of this application, the pot support element can be considered as part of the frame because it is connected to the frame.

[0027] In one embodiment of the invention, the induction cooking device further includes a removable pot support element arranged on a frame and configured to support the pot.

[0028] The advantage of the pot support element is that it, or a portion thereof, can be easily removed from the frame. This makes the pot support element easier to clean. Therefore, with the induction cooking device according to the invention, the pot support element can be washed in a dishwasher. This allows the pot support element to be cleaned better than the fixed glass-ceramic plates of known induction cooking devices. This improves the hygiene of the induction cooking device, thereby reducing the likelihood of illness or food poisoning for the user.

[0029] Another advantage of removable pot supports is that the edge formed between the removable pot support and the kitchen countertop can be cleaned easily. By removing the removable pot support, any food residue that may have remained under the edge can be easily removed. This further improves the hygiene of the sensor cooking appliance.

[0030] By arranging the pot support elements on the frame, the pot support elements become part of the frame.

[0031] The pot support element is preferably circular. Thus, a pot, which is usually also circular, can be stably placed on the pot support element.

[0032] At least in use, the removable pot support element is preferably positioned on the upper side of the worktable. The pot support element is preferably positioned on the upper side of the frame. The lower side of the frame is preferably connected to the upper side of the support base. The upper side of the support base preferably faces the lower side of the worktable. The lower side of the support base preferably faces the ground.

[0033] The removable pot support element may be made at least in part of cast iron, stainless steel, steel, silicone, heat-resistant plastics (such as Ketron PEEK, Techtron, PPS, Fluorosint and / or Symalit PVDF) and / or aluminum.

[0034] In one embodiment of the invention, the detachable pot support element includes at least a portion of a glass plate.

[0035] At least a portion of the glass plate is made of glass. In this application, "at least a portion of the glass plate" is also understood to mean a glass-ceramic plate.

[0036] In one embodiment, the (removable) pot support element is made of mica sheet with a layer of high-pressure laminate (HPL), ceramic material, stone, or glass. Any possible combination of materials is possible.

[0037] One advantage of having at least a partial glass plate is its ease of cleaning. Another advantage is that at least a partial glass plate has a flat surface, which means less residual dirt will remain on it. This improves the hygiene of the removable pot support element.

[0038] In one embodiment of the invention, the removable pot support element includes a filling body, wherein the filling body preferably includes a body that can be removed from an opening in the worktable.

[0039] The dimensions of the body are preferably substantially equal to the opening in the worktable. This can be achieved by using the body removed from the opening as a removable pot support element and / or as a filler body in the removable pot support element.

[0040] The body removed from the opening can alternatively be fixedly attached to the frame. This can optionally be achieved by adhesive bonding. In this embodiment, a removable pot support element, optionally equipped with at least a partial glass plate, can be arranged on the body fixedly attached to the frame. The filling body can be made of any suitable material, such as ceramic.

[0041] One advantage of the main body is that it is made of the same material as the worktable. Because the main body uses the same material, material savings are achieved for the induction cooking device. This reduces the manufacturing cost of the induction cooking device. Another advantage is that the worktable can be integrated into the pot support base.

[0042] In one embodiment of the invention, a temperature conducting element is arranged in the filling body, the temperature conducting element being configured to conduct heat to a temperature sensor arranged below the pot support element, wherein the temperature conducting element is preferably made of a non-magnetic material.

[0043] The temperature-conducting element is preferably made of a non-magnetizable material so that the element itself does not heat up under the influence of the induction coil. The non-magnetizable material preferably includes copper.

[0044] The advantage of a temperature-conducting element is that a temperature sensor positioned below the pot support element can at least partially measure the heat of the pot placed on top of the pot support element. This prevents the pot and the upper part of the pot support element from overheating. This increases the safety of the induction cooking device. This is especially important when the filling body is made of a material with poor thermal conductivity, such as polyphenylene sulfide (PPS).

[0045] In one embodiment, the temperature-conducting element comprises two different materials, wherein the first material is a thermal conductor and the second material has an insulating function. Therefore, the second material is also referred to as an insulator. The desired thermal conductivity of the temperature-conducting element can be achieved through the combination of the first and second materials. The selected material thickness and material type are preferably such that the thermal conductivity of the temperature-conducting element is similar to that of ceramic glass.

[0046] Achieving a thermal conductivity equivalent to that of ceramic glass has the advantage of allowing the use of standard temperature sensors and control units. This reduces the production cost of the device.

[0047] In one embodiment, the first material is copper with a thermal conductivity of 150 W / (m·K), and the second material is an organosilicon material with a thermal conductivity of 0.2 W / (m·K). By placing a layer of the second material above or below the first material, a thermal conductivity of approximately 0.9 W / (m·K) can be achieved in the ceramic glass.

[0048] In one embodiment of the invention, the device further includes a temperature sensor disposed below the pot support element.

[0049] The temperature sensor is preferably operatively connected to the control unit. Based on the temperature measurement transmitted by the temperature sensor, the control unit can shut off the induction coil or, in any case, reduce the power frequency. The temperature sensor prevents the pot and / or pot support elements from overheating, which could lead to damage. The temperature sensor is preferably positioned above the induction coil.

[0050] In one embodiment of the invention, the device further includes a plurality of electronic knobs operatively connected to a second control unit, wherein each electronic knob includes a start switch configured to send a start signal to the control unit based on a start operation.

[0051] The start switch is preferably a physical switch. The physical switch is preferably activated by a start operation. The start operation can be, for example, a push-button action. The second control unit is configured to turn off multiple electronic knobs to a sleep state. The start operation sends a start signal to the control unit, which can then activate power to the multiple electronic knobs based on the start signal. The multiple electronic knobs are thus switched to an operating state.

[0052] Multiple electronic knobs may include physical switches operatively connected to the interface and also include a display. The operating status of the induction coil can be displayed on the display. Pushing or pressing the electronic knobs engages the physical switches.

[0053] Multiple electronic knobs are preferably connected in parallel to the second control unit. Thus, when one of the knobs is activated, each of the multiple electronic knobs can be activated by the second control unit.

[0054] In one embodiment of the invention, a plurality of electronic knobs have a sleep state and an operating state, wherein in the sleep state, a second control unit does not supply power to the electronic knobs, wherein in the operating state, the second control unit supplies power to the electronic knobs, making the induction coil controllable, and wherein the second control unit switches the plurality of electronic knobs from the sleep state to the operating state based on a received start signal.

[0055] The control unit mentioned in the remainder of this application may also be referred to as the first control unit. The first control unit and the second control unit are preferably separate control units connected to each other via a bus. In one embodiment, the second control unit receives power from the first control unit.

[0056] The control unit can switch the induction coil from sleep mode to operating mode by turning on the power supply to multiple electronic knobs. Conversely, the control unit can switch the induction coil from operating mode to sleep mode by turning off the power supply to multiple electronic knobs. The advantage of sleep mode is that the power consumption of the multiple electronic knobs is zero. This reduces the energy consumption of the device throughout its entire lifespan.

[0057] The multiple electronic knobs may include one, two, three, four, five or more electronic knobs. Each of the multiple electronic knobs is preferably configured to control an induction coil associated with it.

[0058] In one embodiment of the invention, the induction cooking device further includes a connecting device for connecting the frame to the support base.

[0059] The advantage of the connection device between the frame and the support base is that multiple induction cooking devices can be easily connected to a single support base. The support base can then serve as a central control for the different induction devices, allowing for efficient control of the various induction coils. Therefore, the frame can also be integrated into the worktable in a modular manner.

[0060] Alternatively or additionally, this connection provides the carrier base with the option to regulate the current passing through different induction coils, thereby preventing the induction cooking device from requiring excessive current. This prevents the fuse in the meter box from blowing.

[0061] In one embodiment of the invention, the connecting device includes a bayonet-type sealing device.

[0062] A bayonet-type closure secures the frame to the load-bearing base in a manner that prevents it from loosening. Pins or protrusions that can move within a groove can be provided on the load-bearing base, for example, with the groove arranged within the frame. Alternatively or additionally, pins or protrusions that can move within a groove can also be provided on the frame, with the groove arranged within the load-bearing base.

[0063] In one embodiment of the invention, the connecting device includes a clamping ring.

[0064] The induction cooking device can be stably installed in the opening of the countertop using a clamping ring.

[0065] In an embodiment of the invention, the pot support element and the frame are provided with a support element locking device for locking the pot support element to the frame.

[0066] The removable pot support element is held in the desired position above the frame by a support element locking device. This reduces the possibility of the pot sliding, tipping over, or falling. This increases the safety of the inductive cooking device according to the invention during the cooking process.

[0067] In one embodiment of the invention, the support element locking device includes a form locking device.

[0068] The shape-locking device can be implemented, for example, by having a removable pot support element including a circular recess on its underside, wherein the circular recess can be positioned above the circular upper plate of the frame. The shape-locking device prevents displacement of the pot support element, while allowing for easy removal of the pot support element.

[0069] In one embodiment of the invention, the support element locking device includes a bayonet-type closure device.

[0070] A secure connection between the removable pot support element and the frame is achieved through a bayonet-type closure. This reduces the likelihood of the removable pot support element shifting during cooking. For example, pins or protrusions that can be displaced in slots arranged in the frame can be provided on the pot support element. Alternatively or additionally, pins or protrusions that can be displaced in slots arranged in the removable pot support element can also be provided on the frame.

[0071] In one embodiment of the invention, the support base is provided with an adjustment device for fixing the support base to the operating table.

[0072] The induction cooking device can be adjusted to fit countertops of varying thicknesses using an adjustment mechanism. This results in an induction cooking device that can be integrated into different countertops and / or kitchens. The adjustment mechanism allows the induction cooking device to be integrated into countertops with thicknesses ranging from 4 mm to 35 mm.

[0073] In one embodiment of the invention, the adjusting device includes an adjusting screw.

[0074] The adjusting screw is preferably positioned through the upper side of the support base. The length of the adjusting screw extending from the support base can be adjusted by tightening the adjusting screw. After the frame and support base are placed through the opening, and optionally after the frame and support base are connected, the adjusting screw can thus be positioned to extend from the support base to the underside of the worktable. This securely locks the entire induction cooking device to or onto the worktable. Another advantage is that the induction cooking device can be watertight against the worktable via the adjusting screw. This reduces the possibility of water damage to the induction device.

[0075] In one embodiment of the invention, the sensing device includes a protective element disposed above the induction coil.

[0076] Protective elements protect the sensing device from dust and / or water, which improves the safety of the device.

[0077] The protective element may be made at least in part of mica, mica sheet, ceramic material, mica sheet reinforced glass, fiber reinforced glass and / or heat-resistant plastic (e.g., Ketron PEEK, Techtron, PPS, Fluorosint and / or Symalit PVDF).

[0078] In one embodiment of the invention, the protective element comprises a glass plate.

[0079] In one embodiment of the invention, the induction cooking device further includes a spring element configured to push the induction coil toward a protective element.

[0080] The advantage of the spring element is that the induction coil is pushed against the pot support element (preferably a glass plate) and thus upwards. The induction coil is thus positioned as close as possible to the surface of the pot. This improves the efficiency of the induction cooking device in heating the pot.

[0081] In one embodiment of the invention, the protective element includes a waterproof membrane disposed above the induction coil.

[0082] If the pot support element breaks or cracks, the waterproof membrane prevents moisture from leaking into the induction coil. This minimizes the possibility of hazardous situations such as short circuits. The waterproof membrane is particularly advantageous if the pot support element is made of glass. The waterproof membrane is also suitable for removable pot support elements.

[0083] In one embodiment of the invention, the waterproof membrane comprises a silicone elastomer membrane.

[0084] Silicone elastomer films possess the following advantageous properties: thermal conductivity, temperature resistance, flame extinguishing within 10 seconds (UL94 V0 rating), sufficient robustness to withstand potential damage from debris, and electrical insulation. Good temperature conductivity is important for any temperature sensor that may be present. It will be apparent to those skilled in the art that any waterproof membrane with similar or better properties than silicone elastomer films would be suitable.

[0085] In one embodiment of the invention, the frame includes a support edge configured to support the outer peripheral edge of the opening in the worktable after placement.

[0086] The support edge allows the frame to be easily placed on the outer periphery of the opening in the worktable. The diameter of the support edge is preferably substantially larger than the diameter of the opening in the worktable.

[0087] In one embodiment of the invention, a clamping ring positioned between the support edge and the outer peripheral edge during use is arranged around the support edge.

[0088] In this application, the clamping ring may also be referred to as a mounting ring. The clamping ring allows the induction cooking device to be stably mounted in an opening in the work surface. The clamping ring can be connected to a pot support element. After connecting the pot support element, the clamping ring is positioned on the outer peripheral edge of the opening, and the induction cooking device is effectively connected to the work surface.

[0089] In one embodiment of the invention, a ring is arranged around the pot support element, preferably a metal ring, such as an aluminum ring.

[0090] The pot support element is further reinforced by a ring arranged around it. This reduces the likelihood of damage to the removable pot support element in the event of a fall. The ring around the pot support element specifically ensures protection against lateral impacts, which can occur, for example, when a pot is placed on it. The ring thus reduces the likelihood of the pot support element breaking and / or cracking.

[0091] The ring is preferably attached to the pot support element via a shape connection. This allows the ring to be easily removed from the pot support element. An advantage is that the ring is easy to clean, for example, by placing it in a dishwasher.

[0092] In one embodiment of the invention, the control unit includes a wireless communication device for connecting to a mobile device.

[0093] The wireless communication device enables the control unit to connect to a mobile device. This allows the status of the induction cooking device to be monitored, for example, via an application. The amount of current fed to the induction device can be adjusted, either alternatively or additionally. This allows the induction device to be turned off even when the user is not present. This prevents the possibility of overheating and / or fire, thereby improving the safety of the invention.

[0094] In one embodiment of the invention, a heat-conducting element, preferably a plate-shaped element, is disposed on a support base, wherein the heat-conducting element is configured to be positioned against the lower side of the operating table.

[0095] The temperature difference that accumulates in the operating table is reduced by a heat-conducting element, which is preferably made of substantially aluminum. This reduces the tension that may build up in the operating table. This prevents the operating table from cracking during use of the device according to the invention.

[0096] Another advantage of the heat-conducting element is that the point load caused by the adjusting screw is evenly distributed on the worktable. This reduces the possibility of breakage and / or cracking in the worktable.

[0097] In one embodiment, a heat-conducting element may also be provided within the frame. This heat-conducting element is then preferably positioned below the main body or below the removable pot support element.

[0098] The present invention also relates to a kitchen equipped with a sensor-controlled cooking device according to the present invention.

[0099] This kitchen has similar effects and advantages as those described for induction cooking devices.

[0100] The present invention also relates to a method for integrating an induction cooking device, wherein the method includes the following steps:

[0101] - Provides an induction cooking apparatus according to the present invention;

[0102] - Place the frame in the opening of the control panel;

[0103] -A support base is arranged below the control panel; and

[0104] - The frame and the load-bearing base are connected to each other by a connecting device.

[0105] This method has similar effects and advantages to those described for induction cooking devices and kitchens.

[0106] Other features, advantages, and details of the invention are described based on embodiments thereof, with reference to the accompanying drawings, wherein:

[0107] - Figure 1 A first example of an induction cooking apparatus according to the present invention is shown;

[0108] - Figure 2 A second example of the induction cooking device according to the present invention is shown;

[0109] - Figure 3 A third example of an induction cooking apparatus according to the present invention is shown;

[0110] - Figure 4 An example of a kitchen according to the present invention is shown;

[0111] - Figure 5 An example of multiple electronic knobs connected to the control unit is shown;

[0112] - Figures 6A-6B A fourth example of an induction cooking apparatus according to the present invention is shown;

[0113] - Figure 7 A fifth example of an induction cooking apparatus according to the present invention is shown;

[0114] - Figure 8 A schematic diagram of a sixth example of an induction cooking apparatus according to the present invention is shown;

[0115] - Figure 9 An enlarged view of a sixth example of an induction cooking apparatus according to the present invention is shown;

[0116] - Figure 10 A three-dimensional cross-section of a sixth example of an induction cooking device is shown; and

[0117] - Figure 11 A perspective view of a sixth example of an induction cooking apparatus according to the present invention is shown.

[0118] Induction cooking device 2 ( Figure 1 The induction cooking device 2 is installed in the worktable 4 of the kitchen 6. The worktable 4 includes an opening 8 in which the induction cooking device 2 is placed. The induction cooking device 2 includes a frame 10 and a support base 12 connected to the frame. The support base 12 is connected to the frame 10 by a bayonet closure device 14. The bayonet closure device includes a pin 15 fixedly connected to the support base 12. In the attached state shown, the pin 15 has been displaced into a slot 17, which is arranged in the frame 10. In the illustrated embodiment, the frame 10 is made of plastic.

[0119] The frame 10 is provided with a support edge 16. The support edge 16 is positioned on the outer periphery 18 of the opening 8 of the operating table 4. Because the diameter of the support edge 16 is larger than the diameter of the outer periphery 18, the frame 10 remains positioned within the opening 8. The frame 10 includes an induction coil 20. The induction coil 20 is pressed against a glass plate 24 by a spring 22. This increases the magnitude of the magnetic field positioned above the glass plate 24. In the illustrated embodiment, the glass plate 24 is a circular glass plate. The glass plate 24 is mounted on the frame 10.

[0120] A removable pot support element 40 is also arranged on top of the frame 10. The removable pot support element 40 includes a glass plate 42. The glass plate 42 is surrounded by a ring 44. The ring 44 is provided with four protrusions 28. Due to the protrusions 28, the removable pot support element 40 can be easily gripped and removed. In the illustrated embodiment, the ring 44 is made of metal. The glass plate 42 is form-fitted to the frame 10. This makes the removable pot support element 40 easy to remove for cleaning and also makes it a stable base for placing pots for cooking.

[0121] The support base 12 is also provided with a control unit 30. The control unit 30 is operatively connected to the induction coil 20 and the adjustment unit 32. The adjustment unit 32 extends through the opening 34 of the worktable 4 of the kitchen 6. By rotating the knob 36 of the adjustment unit 32, the amount of current and / or frequency passing through the induction coil 20 can be set. The support base 12 is also provided with an adjustment device 46. In the illustrated embodiment, the adjustment device 46 is implemented as an adjustment screw. By tightening the adjustment screw 46, the support edge 16 of the frame 10 is firmly pressed against the outer periphery 18, thereby stably connecting the frame 10 and the support base 12 together to the worktable 4.

[0122] Induction cooking device 102 ( Figure 2 This is an alternative to the induction cooking device 2. The induction cooking device 102 is also located in the worktable 104 of the kitchen 106 and includes a frame 110 and a support base 112 connected to the frame. The support base 112 is connected to the frame 110 via a bayonet closure device 114. The bayonet closure device includes a pin 115 fixedly connected to the support base 112. In the attached state shown, the pin 115 has been displaced into a slot 117, which is arranged in the frame 110.

[0123] Frame 110 also has a support edge 116 positioned on the outer periphery 118 of the opening 108 of the operating table 104. Because the diameter of the support edge 116 is larger than the diameter of the outer periphery 118, frame 110 remains positioned within the opening 108. Frame 110 includes an induction coil 120. The induction coil 120 is pressed against the body 124 by a spring 122. This increases the strength of the magnetic field positioned above the body 124. In the illustrated embodiment, the body 124 is a circular body removed from the opening 118 of the operating table 104. The body 124 is mounted on frame 110. A metal ring 126 is arranged around the body 124. The metal ring 126 is provided with four protrusions 128. Figure 1 The removable pot support element 40 can also be arranged on the main body 124.

[0124] like Figure 1 As shown, the support base 112 is equipped with a first control unit 130, which is connected to the induction coil 120 and the adjustment unit 132. The adjustment unit 132 extends through the opening 134 of the worktable 104 of the kitchen 106. The amount of current passing through the induction coil 120 can be adjusted by rotating the knob 136 of the adjustment unit 132.

[0125] The induction cooking device 202 shown in the exploded diagram ( Figure 3 This also includes a frame 210. The frame 210 is provided with an induction coil 220. In the illustrated embodiment, the frame 210 is fixedly connected to the support base 212 during use, therefore... Figure 3 Not shown. A removable pot support element 240 is arranged on top of the frame 210. To mount the induction cooking device 202 to the worktable 204, the frame 210 is placed through the opening 208 of the worktable 204, and then the clamping and sealing ring 248 is fastened to the lower side 250 of the frame 210. The adjusting screw 246 can then be tightened to securely fasten the induction cooking device 202. A heat-conducting plate 252 is arranged on the support base 212. In the illustrated embodiment, the heat-conducting plate 252 is made of aluminum with a thickness of approximately 5 mm. The heat-conducting plate 252... Figure 3 The heat-conducting plate is shown transparently in the center. During use, the heat-conducting plate is pressed against the lower side 254 of the operating table 204 by adjusting screw 246. The heat-conducting plate 252 includes an opening 256 through which the frame 210 is placed during use. In one embodiment, the heat-conducting plate can also be disposed within the frame 210. The heat-conducting plate is then preferably disposed below the body 124 or below the removable pot support element 40.

[0126] Kitchen 306 Figure 4 A control panel 304 is provided. An induction cooking device 302 is arranged in the control panel 304. An adjustment unit 332 is configured to control the amount of current passing through the induction coil of the induction cooking device 302.

[0127] Second control unit 430 Figure 5 It is configured to control the induction coil 420. Figure 5 The induction coil unit 420 is schematically shown, but it can be a single induction coil or multiple induction coils, such as two, three, four, or five induction coils. Electronic knobs 432a, 432b, 432c, 432d, and 432e are operatively connected to a second control unit 430. The second control unit 430 can be powered and communicated (based on RS-485 in the illustrated embodiment) via cable 462. Electronic knobs 432a, 432b, 432c, 432d, and 432e are connected in parallel to the second control unit 430 via start cables 464a, 464b, 464c, 464d, and 464e.

[0128] Physical switches 466a, 466b, 466c, 466d, and 466e are located at the ends of start cables 464a, 464b, 464c, 464d, and 464e. Physical switches 466a, 466b, 466c, 466d, and 466e can be activated by pressing electronic knobs 432a, 432b, 432c, 432d, and 432e. By pressing one of the electronic knobs 432a, 432b, 432c, 432d, or 432e, a start signal is sent to the second control unit 430 via the corresponding start cable 464a, 464b, 464c, 464d, or 464e. The second control unit 430 can then connect the power supply voltage to all electronic knobs 432a, 432b, 432c, 432d, and 432e based on the start signal. Electronic knobs 432a, 432b, 432c, 432d, and 432e are thus switched from sleep mode to operating mode. In sleep mode, no power is supplied to electronic knobs 432a, 432b, 432c, 432d, and 432e. Therefore, in sleep mode, energy is saved because no power is used, and the user can easily reactivate all electronic knobs 432a, 432b, 432c, 432d, and 432e by simply pushing or pressing the knob.

[0129] Induction coil 520 ( Figure 6AA pot 570 is disposed below the pot support element 540. The pot support element 540 can be a removable pot support element or a fixed pot support element. In the illustrated embodiment, the pot support element 540 is a fixed pot support element made of ceramic glass. A temperature sensor 568 is disposed below the pot support element 540. The temperature sensor 568 is operatively connected to a first control unit 530. Based on the temperature measured by the temperature sensor 568, the first control unit 530 can shut off the induction coil 520, or alternatively reduce the frequency of the current passing through the induction coil 520.

[0130] In this alternative embodiment, the pot support element 640 ( Figure 6B The pot support element 670 is made of polyphenylene sulfide (PPS). PPS has poor thermal conductivity compared to ceramic glass. If the pot support element 640 is entirely made of PPS, this results in the temperature sensor 668 not receiving sufficient information about the temperature of the pot 670. To eliminate this problem, a temperature conducting element 672 is arranged at the center of the pot support element 640. In the illustrated embodiment, the temperature conducting element 672 is made of copper. It will be apparent to those skilled in the art that the temperature conducting element 672 can be made of any non-magnetized thermally conductive material. Therefore, in one embodiment, the temperature conducting element 672 can be made of two different materials, for example, partially made of copper and partially made of silicone. This allows the desired thermal conductivity of the temperature conducting element 672 to be obtained by varying the thickness and arrangement of the different materials. Thus, the thermal conductivity of ceramic glass can be achieved with the temperature conducting element 672. The silicone layer is preferably placed above or below the copper portion of the temperature conducting element 672. The temperature conducting element 672 preferably extends over the entire thickness of the pot support element 640. Since the temperature conducting element 672 is positioned above the temperature sensor 668, the temperature sensor 668 can measure the temperature of the pot 670. The first control unit 630 can control the induction coil 620 based on the measured temperature.

[0131] Induction coil 720 ( Figure 7The induction coil 720 includes a coil and mica sheets 721 arranged on the upper and lower sides. The mica sheets 721 comprise mica paper, glass cloth, and ceramic paper, bonded together with a silicone adhesive. The induction coil 720 is arranged within an induction housing 723. The induction housing 723 is connected to a pot support element 740. In the illustrated embodiment, the pot support element 740 is made of ceramic glass. The pot support element 740 is supported on a worktable 704 by a mounting ring 741. A waterproof membrane 774, made of a silicone elastomer film, is disposed between the pot support element 740 and the induction coil 720. The waterproof membrane 774 is suspended above the face of the induction coil 720 by sidewalls 776. This makes the waterproof membrane 774 U-shaped. Thus, if the pot support element 740 is damaged, all faces of the induction coil 720 are well protected from moisture. It will be apparent to those skilled in the art that the waterproof membrane 774 can also be arranged on the induction coil 720 without the mica sheets 721.

[0132] Induction Cooking Device 802 ( Figure 8 and Figure 9 The device includes a support base 812 and a frame 810 connected thereto. The frame 810 includes a bracket 878, a coil support 880, and a pot support element 840. The bracket 878 extends from the support base 812 to the coil support 880. A coil 820 is arranged in the coil support 880. The frame 810 is positioned in an opening 808 of an operating table 804. The pot support element 840 is provided with a glass plate 842. A mounting ring 882 is attached to the glass plate 842. In the illustrated embodiment, the glass plate 842 is bonded to the mounting ring 882. The mounting ring 882 is provided with a support edge 816 positioned on the outer peripheral edge 818 of the opening 808 in the operating table 804. It will be apparent to those skilled in the art that, in alternative embodiments, the element 842 may also be made of a material other than glass, such as ceramic or polyphenylene sulfide.

[0133] Frame 810 ( Figure 10 The device includes a bracket 878 connected to the lower side 881 of a coil support 880. In the illustrated embodiment, the coil support 880 is in the form of a receiving groove. A coil 820 is arranged in the coil support 880. The coil support 880 is provided with an opening 886. The opening 886 is configured to receive a pin 884 of a mounting ring 882. The mounting ring 882 is provided with a support edge 816 positioned on the outer peripheral edge 818 of the opening 808. The mounting ring 882 is also provided with a connecting member 833. The connecting member 883 is attached to a glass plate 842, thereby connecting the mounting ring 882 to the glass plate 842. The mounting ring 882 and the glass plate 842 together form a pot support element 840. Due to its connection with the coil support 880, the pot support element 840 forms part of a frame 810.

[0134] Adjustment unit 832 ( Figure 11 The control panel includes a knob 833 with a display 835. An adjustment unit 832 extends through the control panel 804 along with a screw 841. The screw 841 is threaded 837. A nut 839 can be tightened onto the thread 837, securing the nut 839 against the lower side 803 of the control panel 804. This effectively secures the adjustment unit 832 to the control panel 804.

[0135] In one embodiment of the invention, a support base 812 and a frame 810, fixedly connected to each other, are positioned below an operating table 804. The support base 812 and frame 810 are then moved upward toward the operating table 804, such that the frame 810 is positioned in an opening 808 of the operating table 804. A coil support 880 of the frame 810 must be inserted through the opening 808, such that the opening 886 of the bayonet-type closure device 814 extends above the upper side 805 of the operating table 804.

[0136] The pot support element 840 can then be connected to the rest of the frame 810. For this purpose, a pin 884 of the mounting ring 882 is inserted into the opening 886 of the coil holder 880. It will be apparent to those skilled in the art that the pin 884 can reach the opening 886 of the coil holder 880 through a slot. Arranging the pin 884 in the opening 886 connects the pot support element 840 to the coil holder 880. The entire induction cooking device 802 can then be positioned such that the support edge 816 of the mounting ring 882 engages with the outer peripheral edge 818 of the opening 808. The adjusting screw 846 is then tightened, pressing it against the lower side 803 of the worktable 804. This achieves an effective clamping connection, with the support edge 816 pressing against the upper side 805 of the worktable 804 and the adjusting screw 846 pressing against the lower side 803 of the worktable 804. Thus, the induction cooking device 802 is effectively mounted in the worktable 804. Additional locking screws may be arranged to extend through the mounting ring 882 and the coil bracket 880.

[0137] This invention is by no means limited to the embodiments described above. The sought rights are defined by the following claims, and many modifications may be contemplated within their scope.

Claims

1. An induction cooking device, comprising: - A support base, which houses the control unit and is configured to be positioned below the control panel; and - A frame, which is connected to the support base in use and is configured to be placed in an opening arranged in the worktable, wherein the frame includes a sensing device, the sensing device including an induction coil for inductively heating a pot that can be placed on the frame, wherein the sensing device can be connected to the support base.

2. The induction cooking device according to claim 1, wherein, At least a portion of the frame can be placed in the opening from below the worktable to connect to a pot support element arranged above the worktable.

3. The induction cooking apparatus according to claim 1 or 2 further includes a plurality of frames connected to the support base, wherein each of the plurality of frames is configured to be placed through a corresponding opening arranged in the worktable.

4. The induction cooking apparatus according to claim 1, 2 or 3 further includes a removable pot support element disposed on the frame and configured to support the pot.

5. The induction cooking device according to claim 4, wherein, The removable pot support element includes a glass plate.

6. The induction cooking device according to claim 4, wherein, The removable pot support element includes a filling body, wherein the filling body preferably includes a body that can be removed from an opening in the worktable.

7. The induction cooking apparatus according to claim 6, wherein, A temperature conducting element is arranged in the filling body and is configured to conduct heat to a temperature sensor arranged below the pot support element. The temperature conducting element is preferably made of a non-magnetic material.

8. The induction cooking apparatus according to any one of the preceding claims further includes a temperature sensor disposed below the pot support element.

9. The induction cooking apparatus according to any one of the preceding claims further includes a plurality of electronic knobs operatively connected to the control unit, wherein each electronic knob includes a start switch configured to send a start signal to the control unit based on a start operation.

10. The induction cooking apparatus according to claim 9, wherein, The plurality of electronic knobs have a sleep state and an operating state, wherein in the sleep state, the control unit does not supply power to the electronic knobs, and in the operating state, the control unit supplies power to the electronic knobs to control the induction coils, and wherein the control unit switches the electronic knobs from the sleep state to the operating state based on the received start signal.

11. The induction cooking apparatus according to any one of the preceding claims further includes a connecting device for connecting the frame to the support base.

12. The induction cooking apparatus according to claim 11, wherein, The connecting device includes a bayonet-type sealing device.

13. The induction cooking apparatus according to claim 11 or 12, wherein, The connecting device includes a clamping ring.

14. The induction cooking apparatus according to any one of the preceding claims, wherein, The pot support element and the frame are provided with a support element locking device for locking the pot support element to the frame.

15. The induction cooking apparatus according to claim 14, wherein, The support element locking device includes a shape locking device.

16. The induction cooking apparatus according to claim 14 or 15, wherein, The support element locking device includes a bayonet-type sealing device.

17. The induction cooking apparatus according to any one of the preceding claims, wherein, The support base is provided with an adjustment device for fixing the support base to the operating table.

18. The induction cooking apparatus according to claim 17, wherein, The adjusting device includes an adjusting screw.

19. The induction cooking apparatus according to any one of the preceding claims, wherein, The sensing device includes a protective element disposed above the induction coil.

20. The induction cooking apparatus according to claim 19, wherein, The protective element includes a glass plate.

21. The induction cooking apparatus of claim 19 or 20, further comprising a spring element configured to push the induction coil toward the support element.

22. The induction cooking apparatus according to any one of claims 19 to 21, wherein, The protective element includes a waterproof membrane disposed above the induction coil.

23. The induction cooking apparatus according to claim 22, wherein, The waterproof membrane includes an organosilicon elastomer membrane.

24. The induction cooking apparatus according to any one of the preceding claims, wherein, The frame includes a support edge configured to rest on the outer peripheral edge of the opening in the worktable after placement.

25. The induction cooking apparatus according to claim 24, wherein, During use, a clamping ring positioned between the support edge and the outer peripheral edge is arranged around the support edge.

26. The induction cooking apparatus according to any one of the preceding claims, wherein, A metal ring is arranged around the pot support element.

27. The induction cooking apparatus according to any one of the preceding claims, wherein, The control unit includes a wireless communication device for connecting to a mobile device.

28. The induction cooking apparatus according to any one of the preceding claims, wherein, A heat-conducting element, preferably a plate-shaped element, is disposed on the support base, wherein the heat-conducting element is configured to be positioned against the lower side of the operating table.

29. A kitchen provided with an induction cooking device according to any one of claims 1 to 28.

30. A method for integrating an induction cooking device, comprising: - Provides an induction cooking apparatus according to any one of claims 1 to 28; - Place the frame in the opening of the operating table; - The supporting base is arranged from below the operating table; and - The frame and the load-bearing base are connected to each other by the connecting device.

31. The method according to claim 30, wherein, Placing the frame in the opening of the worktable includes placing the frame through the opening from below the worktable, and connecting the frame and the support base to each other includes connecting the frame to a pot support element arranged above the worktable.

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