A rotatable heating induction cooker

Abstract

This invention discloses a rotatable heating induction cooker, relating to the field of induction cooker technology. It includes a housing, a glass panel, and an operation panel. Both the operation panel and the glass panel are located on the upper part of the housing. A fixed support platform is provided on the upper part of the housing and the glass panel. The central axis of the fixed support platform corresponds to the center of the glass panel. The fixed support platform has an arc-shaped structure, and its ends are connected to the housing. Anti-slip protrusions are provided on the fixed support platform, and its lower bottom is opposite to the glass panel. This invention uses the aforementioned rotatable heating induction cooker. A rotating mechanism drives the coil assembly to rotate, enabling the coil assembly to heat the workpiece omnidirectionally and evenly, avoiding localized overheating. The arc-shaped fixed support platform adapts to the bottom contour of the workpiece, and the anti-slip protrusions effectively increase friction, preventing the workpiece from sliding during heating and rotation.

Description

Technical Field

[0001] This invention relates to the field of induction cooker technology, and in particular to an induction cooker with rotatable heating. Background Technology

[0002] Induction cookers, as efficient and energy-saving cooking appliances, are widely used in homes and restaurants. Their core principle is to generate an alternating magnetic field through an electromagnetic coil, which induces eddy currents at the bottom of the pot, thereby generating heat. However, traditional induction cookers and existing rotating induction cookers both have significant technical shortcomings, especially the problem of uneven heating, which has not yet been effectively solved.

[0003] Traditional fixed-heat induction cookers use a single-center dense coil, where the magnetic field is concentrated in the central area. This results in the center of the cookware receiving significantly more heat than the edges, making it prone to problems such as burnt food in the center and undercooked or undercooked food at the edges, severely impacting the taste and user experience. Existing technology includes rotating induction cookers, but the rotation of the pot can easily cause spills and the cookware to slip, posing safety hazards. Summary of the Invention

[0004] The purpose of this invention is to provide a rotatable induction cooker that solves the problems of uneven heating and safety hazards caused by the rotation of the pot in existing rotatable induction cookers.

[0005] To achieve the above objectives, the present invention provides a rotatable heating induction cooker, comprising a housing, a glass panel, and an operation panel. The operation panel and the glass panel are both disposed on the upper part of the housing. A fixed support platform is disposed on the upper part of the housing and the glass panel. The central axis of the fixed support platform corresponds to the center of the glass panel. The fixed support platform is configured with an arc-shaped structure. The end of the fixed support platform is connected to the housing. Anti-slip protrusions are provided on the fixed support platform. The lower bottom of the fixed support platform is disposed opposite to the glass panel.

[0006] Preferably, a rotating mechanism and a coil assembly are provided at the lower part of the glass panel. The coil assembly is connected to the rotating mechanism. The rotating mechanism includes a DC geared motor and a synchronous belt pulley transmission assembly. The synchronous belt pulley transmission assembly includes a driving pulley and a driven pulley. The driven pulley is connected to the driving pulley via a synchronous belt. A keyway is provided in the inner hole of the driving pulley. The keyway is connected to the output shaft of the DC geared motor via a key. The DC geared motor is connected to the housing.

[0007] Preferably, the driven wheel is connected to a rotary bearing, one end of the rotary bearing is connected to a positioning seat, and the other end of the rotary bearing is connected to a coil assembly.

[0008] Preferably, the coil assembly includes a coil support and an annular coil group, the annular coil group is connected to the coil support, the coil support is coaxially arranged with the fixed support platform, the bottom of the coil support is fixedly connected to the upper end of the rotary bearing, and multiple magnetic cores are embedded in the bottom of the coil support.

[0009] Preferably, the annular coil group uses copper core enameled wire, and the number of turns of the copper core enameled wire is different, with the number of turns increasing sequentially about the axis of the fixed support.

[0010] Preferably, a conductive slip ring is provided on the outer side of the rotary bearing, one end of which is electrically connected to the annular coil group and the other end is electrically connected to the main control board.

[0011] Preferably, the main control board is disposed inside the housing, and the main control board is electrically connected to the DC geared motor ring coil group, the power supply and the control panel.

[0012] Preferably, the lower part of the housing is provided with heat dissipation holes and a cooling fan.

[0013] Therefore, this invention employs a rotatable heating induction cooker, where a rotating mechanism drives the coil assembly to rotate, enabling the coil assembly to heat the workpiece in an all-around and uniform manner, avoiding localized overheating. The annular coil assembly is wound with copper core enameled wire with unequal turns, the number of turns increasing sequentially about the axis of the fixed support platform. This allows for differentiated heating according to the needs of different areas of the workpiece. Simultaneously, the magnetic core enhances the magnetic field strength, further improving heating efficiency and reducing energy waste. Compared to traditional coils with equal turns, it also reduces copper consumption and weakens high-order harmonics. The arc-shaped fixed support platform adapts to the bottom contour of the workpiece, and with anti-slip protrusions, effectively increases friction, preventing the workpiece from sliding during heating and rotation. The glass panel is made of tempered glass, which is high-temperature resistant and high-strength. The sealant improves the device's sealing, preventing soup and water stains from entering the casing. These multiple design features ensure safe use.

[0014] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of a rotatable heating induction cooker according to the present invention; Figure 2 This is a side view of a rotatable heating induction cooker according to the present invention; Figure 3 This is a schematic diagram of the synchronous belt pulley structure of a rotatable heating induction cooker according to the present invention; Figure 4This is a side view of the synchronous belt pulley of a rotatable heating induction cooker according to the present invention; Figure Labels 1. Housing; 2. Control panel; 3. Fixed support platform; 4. Glass panel; 5. Heat dissipation holes; 6. Support legs; 7. Cooling fan; 8. Circular coil; 9. Positioning seat; 10. Synchronous belt; 11. DC geared motor; 12. Rotary bearing; 13. Drive wheel; 14. Keyway; 15. Output shaft; 16. Driven wheel; 17. Coil bracket. Detailed Implementation

[0016] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0018] Example Please see Figures 1-4 This invention provides a rotatable heating induction cooker, including a housing 1, a glass panel 4, and an operation panel 2. Both the operation panel 2 and the glass panel 4 are located on the upper part of the housing 1. The operation panel 2 is a touch-sensitive operation panel, which is convenient for users to adjust parameters such as heating power and rotation speed. The glass panel 4 is made of high-temperature resistant and high-strength tempered glass, and the surface is provided with a scratch-resistant coating. The space between the glass panel 4 and the housing 1 is filled with sealant to improve the sealing performance of the device and prevent soup and water stains from entering the interior of the housing 1. The lower part of the housing 1 is provided with support legs 6.

[0019] A fixed support platform 3 is provided on the upper part of the shell 1 and the glass panel 4. The central axis of the fixed support platform 3 corresponds to the center of the glass panel 4. The fixed support platform 3 is designed with an arc-shaped structure to match the bottom contour of common cookware and containers. The end of the fixed support platform 3 is integrally formed with the shell 1 and is firmly connected. The upper surface of the fixed support platform 3 is evenly provided with multiple anti-slip protrusions. The anti-slip protrusions are made of high-temperature resistant silicone material, which can increase the friction between the heated part and the fixed support platform 3, prevent the heated part from sliding, and improve the safety of use. The lower bottom of the fixed support platform 3 is set opposite to the glass panel 4, which does not affect the heat transfer of the glass panel 4 and the heating effect of the coil assembly. The rotating mechanism drives the coil assembly to rotate around the central axis of the fixed support platform 3 to achieve uniform heating of the heated part.

[0020] The lower part of the glass panel 4 is provided with a rotating mechanism and a coil disk assembly. The coil disk assembly is connected to the rotating mechanism. The rotating mechanism includes a DC geared motor and a synchronous belt 10 pulley transmission assembly. The synchronous belt 10 pulley transmission assembly includes a driving pulley 13 and a driven pulley 16. Most of the driven pulleys 16 are connected to the driving pulley 13 through the synchronous belt 10. The driving pulley 13 has a keyway 14 in its outline. The keyway 14 is connected to the output shaft 15 of the DC geared motor through a key. The connection is firm and avoids slippage during transmission. The DC geared motor is fixedly connected to the inside of the housing 1 by bolts. The speed of the DC geared motor can be adjusted by the main control board to adapt to different heating requirements.

[0021] Driven wheel 16 is connected to rotary bearing 11. One end of rotary bearing 11 is connected to positioning seat 9. Positioning seat 9 is fixedly connected to the inside of housing 1 by bolts to position and support rotary bearing 11, ensuring the rotational stability of rotary bearing 11; driving coil disk assembly to rotate smoothly. The other end of rotary bearing 11 is connected to coil disk assembly.

[0022] The coil assembly includes a coil support 17 and eight sets of annular coils. The eight sets of annular coils are connected to the coil support 17. The coil support 17 is coaxially arranged with the fixed support platform 3 to ensure that the coil assembly can correspond to the center area of ​​the heated part when it rotates. The bottom of the coil support 17 is fixedly connected to the upper end of the rotary bearing 11. Multiple magnetic cores are embedded in the bottom of the coil support 17. The magnetic cores are evenly distributed on the bottom of the coil support 17 to enhance the magnetic field strength generated by the eight sets of annular coils, improve electromagnetic heating efficiency, reduce magnetic field leakage, and reduce energy waste. The coil support 17 is coaxially arranged with the fixed support platform 3.

[0023] The eight sets of toroidal coils use copper core enameled wire with different numbers of turns. The number of turns increases sequentially with respect to the axis of the fixed support platform 3, meaning that the area closer to the axis has fewer turns and the area farther from the axis has more turns. This results in differences in the magnetic field strength of different areas of the eight sets of toroidal coils, enabling differentiated heating according to the different needs of the heated parts. This avoids the problem of uneven heating between the center and the edges of the heated parts. At the same time, compared with winding with the same number of turns, it can effectively reduce copper consumption, lower production costs, and weaken the influence of high-order harmonics.

[0024] A conductive slip ring is fitted on the outer side of the rotary bearing 11. The conductive slip ring adopts a high temperature resistant design and is a through-hole slip ring adapted to 220V heating current. One end of the slip ring is electrically connected to the 8 sets of ring coils through a wire, and the other end is electrically connected to the main control board through a wire. This enables stable power supply during the rotation of the coil disk assembly, avoids problems such as poor contact and power failure, and ensures the continuity of the heating process. Its precious metal plating design can improve service life and signal transmission stability.

[0025] The main control board is fixedly installed inside the housing 1. The main control board is electrically connected to the DC geared motor, the 8 sets of ring coils, the power supply, and the operation board 2 via wires. The main control board has a built-in control chip that can receive control commands from the operation board 2 to control the start, stop, and speed of the DC geared motor, and adjust the heating power of the 8 sets of ring coils to achieve precise control of the heating process. At the same time, the main control board has overload protection and overheat protection functions. When the device is overloaded or overheated, it will automatically cut off the power supply to improve the safety of the device.

[0026] Multiple heat dissipation holes 5 are evenly arranged at the bottom of the housing 1. A cooling fan 7 is installed inside the housing 1 at the position corresponding to the heat dissipation holes 5. The cooling fan 7 is electrically connected to the main control board. The main control board can automatically control the start, stop and speed of the cooling fan 7 according to the internal temperature of the housing 1 through the built-in temperature sensor. The heat dissipation holes 5 and the cooling fan 7 work together to form air convection, which quickly dissipates the heat generated by the electronic components inside the housing 1 when they are working, avoids heat accumulation that may damage the electronic components and extends the service life of the device.

[0027] Working process: During use, the pot is placed on the fixed support platform 3. The anti-slip protrusions limit the heating of the pot to prevent slippage. The heating parameters are input through the operation panel 2. After receiving the command, the main control board controls the power supply to the ring coil 8. The ring coil 8 generates a magnetic field, which heats the pot through the glass panel 4. At the same time, the DC geared motor is started. The DC geared motor drives the drive wheel 13 to rotate. The drive wheel 13 drives the driven wheel 16 to rotate through the synchronous belt 10. The driven wheel 16 drives the rotating bearing 11 and the coil disk assembly to rotate, so as to achieve uniform heating of the pot from all directions. During the heating process, the conductive slip ring ensures a stable power supply when the coil disk assembly rotates, and the magnetic core enhances the magnetic field strength and improves the heating efficiency. The cooling fan 7 works automatically according to the internal temperature of the housing 1 and exhausts the heat through the heat dissipation holes 5.

[0028] Therefore, this invention employs a rotatable heating induction cooker, where a rotating mechanism drives the coil assembly to rotate, enabling the coil assembly to heat the workpiece in an all-around and uniform manner, avoiding localized overheating. The annular coil assembly is wound with copper core enameled wire with unequal turns, the number of turns increasing sequentially about the axis of the fixed support platform. This allows for differentiated heating according to the needs of different areas of the workpiece. Simultaneously, the magnetic core enhances the magnetic field strength, further improving heating efficiency and reducing energy waste. Compared to traditional coils with equal turns, it also reduces copper consumption and weakens high-order harmonics. The arc-shaped fixed support platform adapts to the bottom contour of the workpiece, and with anti-slip protrusions, effectively increases friction, preventing the workpiece from sliding during heating and rotation. The glass panel is made of tempered glass, which is high-temperature resistant and high-strength. The sealant improves the device's sealing, preventing soup and water stains from entering the casing. These multiple design features ensure safe use.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A rotary heating induction cooker, characterized in that: The device includes a housing, a glass panel, and an operating panel. The operating panel and the glass panel are both located on the upper part of the housing. A fixed support platform is provided on the upper part of the housing and the glass panel. The central axis of the fixed support platform corresponds to the center of the glass panel. The fixed support platform is configured with an arc-shaped structure. The end of the fixed support platform is connected to the housing. Anti-slip protrusions are provided on the fixed support platform. The lower bottom of the fixed support platform is positioned opposite to the glass panel.

2. The rotatable heating induction cooker according to claim 1, characterized in that: The lower part of the glass panel is provided with a rotating mechanism and a coil assembly. The coil assembly is connected to the rotating mechanism. The rotating mechanism includes a DC geared motor and a synchronous belt pulley transmission assembly. The synchronous belt pulley transmission assembly includes a driving pulley and a driven pulley. The driven pulley is connected to the driving pulley via a synchronous belt. A keyway is provided in the inner hole of the driving pulley. The keyway is connected to the output shaft of the DC geared motor via a key. The DC geared motor is connected to the housing.

3. The rotatable heating induction cooker according to claim 2, characterized in that: The driven wheel is connected to a rotary bearing, one end of which is connected to a positioning seat, and the other end of which is connected to a coil assembly.

4. The rotatable heating induction cooker according to claim 3, characterized in that: The coil assembly includes a coil support and an annular coil group. The annular coil group is connected to the coil support. The coil support is coaxially arranged with the fixed support platform. The bottom of the coil support is fixedly connected to the upper end of the rotary bearing. Multiple magnetic cores are embedded in the bottom of the coil support.

5. The rotatable heating induction cooker according to claim 4, characterized in that: The ring coil assembly uses copper core enameled wire, and the number of turns of the copper core enameled wire varies, with the number of turns increasing sequentially about the axis of the fixed support platform.

6. The rotatable heating induction cooker according to claim 5, characterized in that: A conductive slip ring is provided on the outer side of the rotary bearing. One end of the conductive slip ring is electrically connected to the annular coil group, and the other end is electrically connected to the main control board.

7. A rotatable heating induction cooker according to claim 6, characterized in that: The main control board is located inside the housing and is electrically connected to the DC geared motor ring coil group, power supply, and control panel.

8. The rotatable heating induction cooker according to claim 7, characterized in that: The lower part of the housing is provided with heat dissipation holes and a cooling fan.

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