Portable cooking cup
By integrating a turntable assembly and a metal inner liner into a portable cooking cup, combined with a heating coil and a power bank, it achieves convenient heating and stirring functions, solving the portability and efficiency issues of outdoor cooking, and providing multiple control modes to ensure temperature stability and cooking results.
Patent Information
- Application Number
- CN202511961821.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-24
- Publication Date
- 2026-01-30
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing technologies lack devices that integrate heating and easy cooking functions for easy outdoor use, and cannot meet the needs for hot food and hot water in outdoor environments.
A portable blending cup was designed, integrating a rotatable turntable assembly and a metal inner liner. Combined with a heating coil, a power source, a drive mechanism, a temperature sensor, and a controller, it achieves integrated heating and blending, and enables precise temperature control through multiple control modes.
It features convenient heating and cooking functions, ensuring temperature stability and cooking results, solving the problem of obtaining hot food outdoors, and improving portability and user experience.
Smart Images

Figure CN121421349A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of portable heating appliances, and more specifically, to a portable cooking cup. Background Technology
[0002] Currently, people often face the problem of not being able to easily obtain hot food or hot water while traveling, camping, or commuting outdoors. The conventional solution relies on storing hot water in a thermos or consuming ready-made food products that do not require heating.
[0003] However, insulated cups can only slow down heat loss and cannot actively heat the food. The need for hot food and water is particularly urgent in cold environments or when the user is unwell. Current technology lacks an all-in-one portable device that integrates heating, simple cooking functions, and is easy to carry outdoors. Summary of the Invention
[0004] In view of the above-mentioned problems in the prior art, the purpose of the present invention is to provide a portable cooking cup that enables portable heating and cooking.
[0005] To address the above problems, the present invention provides a portable cooking cup, the portable cooking cup comprising: The cup body has a first opening at its top; A cup lid that can cover the first opening, and the cup lid and the cup body that can be closed to form a first cavity; A turntable assembly, rotatably disposed at the bottom of the interior of the cup body, the turntable assembly including a heating coil; A metal inner liner is housed within the first cavity, and its bottom is connected to the upper surface of the turntable assembly. A second opening is formed at the top of the metal inner liner, and the height of the second opening is lower than the height of the first opening. Inner cover, which can cover the second opening; A portable power source, which is electrically connected to at least the heating coil.
[0006] Furthermore, the turntable assembly also includes: The plate is formed in a columnar shape and has a first chamber inside that accommodates the heating coil. A ring track assembly, comprising an inner ring and an outer ring capable of relative rotation, wherein the outer wall of the outer ring is connected to the side wall of the cup body, and the inner wall of the inner ring is connected to the outer wall of the plate body.
[0007] Furthermore, the portable cooking cup also includes: A driving mechanism, comprising a rotating shaft passing through the bottom of the cup body and connected to the bottom of the plate body, the rotating shaft being capable of driving the plate body to rotate, and the driving mechanism being connected to the mobile power supply.
[0008] Furthermore, the drive mechanism includes: The bottom shell has a second chamber inside, and the bottom shell is detachably connected to the bottom of the outside of the cup body. The upper surface of the bottom shell is adapted to the shape of the lower surface of the outside of the cup body. A flat motor, the bottom of which is fixed to the bottom of the interior of the bottom shell, and its shaft passes through the bottom of the bottom shell and the bottom of the cup body, and is connected to the bottom of the plate body.
[0009] Furthermore, the portable cooking cup also includes: A temperature sensor is disposed on the inner wall of the metal liner to detect the temperature inside the metal liner.
[0010] Furthermore, the portable cooking cup also includes: The controller is connected to the power bank, the temperature sensor, the heating coil, and the flat motor. The controller controls the operation of the heating coil according to the control mode and receives the temperature signal detected by the temperature sensor. The controller adjusts the heating power or on / off state of the heating coil to make the temperature detected by the temperature sensor reach and maintain within the predetermined temperature range corresponding to the control mode.
[0011] Furthermore, the control mode includes: In the water boiling mode, the preset temperature is the boiling point temperature. When the temperature reaches the boiling point, the controller controls the heating coil to stop heating or switch to low-power heat preservation. In the stewing mode, the predetermined temperature range is the first constant temperature range. The controller controls the flat motor to drive the plate and the metal inner pot to rotate back and forth at a first speed. At the same time, the controller controls the heating coil to work intermittently to maintain the temperature within the first constant temperature range. In the stir-frying mode, the controller controls the flat motor to drive the pan and the metal inner liner to reciprocate at a second speed higher than the first speed, while simultaneously controlling the heating coil to operate, so that the temperature reaches and is maintained in a second constant temperature range higher than the first constant temperature range.
[0012] Furthermore, the inner cover is made of silicone, and vent holes are formed on the inner cover.
[0013] Furthermore, the metal inner liner is magnetically connected to the disc body.
[0014] Furthermore, the mobile power supply is formed in a column shape and is detachably connected to the bottom of the drive mechanism.
[0015] Due to the above technical solution, the present invention has the following beneficial effects: The portable cooking cup of the present invention integrates heating and stirring by incorporating a heating coil into a rotatable turntable assembly and combining it with a rotating metal inner liner. The metal inner liner, due to its excellent thermal conductivity, efficiently and evenly transfers the heat generated by the heating coil. The integration of a power source completely eliminates dependence on a fixed power source, making it a truly portable heating and cooking device.
[0016] The sandwich structure between the cup body and the metal inner liner, along with the independent inner lid, helps to keep food warm and prevents spillage during cooking, thus contaminating the cup. This overall solution addresses the challenge of obtaining hot food outdoors as described in the background section. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the present invention, the accompanying drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.
[0018] Figure 1 This is a structural diagram of a portable cooking cup according to an embodiment of the present invention; Figure 2 yes Figure 1 A structural diagram of a portable cooking cup without the lid and inner cover; Figure 3 yes Figure 1 A structural diagram of the portable cooking cup without the lid, inner lid, and metal inner liner; Figure 4 yes Figure 3 A magnified view of region A in the image.
[0019] Figure label: 110. Cup body; 120. Cup lid; 200. Power bank; 310. Metal inner liner; 400. Temperature sensor; 500. Plate body; 600. Circular track assembly; 610. Inner ring; 620. Outer ring; 630. Needle roller; 700. Drive mechanism. Detailed Implementation
[0020] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0021] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.
[0022] The portable cooking cup of the present invention will now be described in an embodiment.
[0023] like Figures 1 to 4 As shown, the portable cooking cup of this invention includes: a cup body 110, a cup lid 120, a turntable assembly, a metal inner liner 310, an inner cover, and a power bank 200.
[0024] First, let's describe the cup body 110 and the cup lid 120. The top of the cup body 110 has a first opening. The cup lid 120 can cover the first opening, and the cup lid 120 and the cup body 110 can be closed to form a first cavity.
[0025] The cup body 110 serves as the main support and external container for the portable cooking cup, and its top has a first opening. The shape, size, and heat-resistant material of the cup body 110 are highly selectable, for example, it can be cylindrical, square, or other ergonomic streamlined shapes, and the material can be heat-resistant plastic, metal, or heat-resistant composite material (preferably metal) to provide structural strength and heat insulation.
[0026] The lid 120 is used to cover the first opening of the cup body 110. The lid 120 and the cup body 110 can be connected in a closable manner through various means such as threads, snaps, and hinges. When the lid 120 is closed, it and the cup body 110 together form a first cavity. This first cavity constitutes the main internal space of the portable cooking cup.
[0027] Next, the turntable assembly will be described. The turntable assembly is rotatably disposed at the bottom of the interior of the cup body 110, and the turntable assembly includes a heating coil.
[0028] The turntable assembly is rotatably mounted inside the bottom of the cup body 110. The turntable assembly integrates a heating coil. This means that the turntable assembly is not only a support platform, but also a rotating component capable of actively heating. The heating coil can be embedded, attached, or otherwise fixed inside or on the surface of the turntable assembly.
[0029] The turntable assembly can be rotated manually or automatically, enabling food to be stirred and increasing the evenness of heating.
[0030] Next, the metal inner liner 310 and the inner cover will be described. The metal inner liner 310 is housed within the first cavity, and its bottom is connected to the upper surface of the turntable assembly. A second opening is formed at the top of the metal inner liner 310, the height of which is lower than the height of the first opening. The inner cover can cover the second opening.
[0031] The metal inner liner 310 is housed within the first cavity enclosed by the lid 120 and the cup body 110. Its bottom is connected to the upper surface of the turntable assembly, allowing it to rotate with the turntable assembly. A second opening is formed at the top of the metal inner liner 310, and the height of this second opening is designed to be lower than the height of the first opening in the cup body 110. This structure naturally creates a sandwich or buffer space between the metal inner liner 310 and the sidewall of the cup body 110.
[0032] The inner lid is specifically designed to cover the second opening of the metal inner liner 310. The inner lid design allows for a more direct seal of the cooking chamber (i.e., the interior of the metal inner liner 310), reducing heat loss and liquid splashing into the space between the inner liner and the cup body 110 during rotation.
[0033] Finally, let's discuss the power bank 200. The power bank 200 is electrically connected to the heating coil at least.
[0034] The power bank 200 is electrically connected to the heating coil in the turntable assembly, providing power for the heating function. A key feature of the power bank 200 is its detachable design, facilitating individual charging and replacement, and ensuring the blender cup's continued operation even when disconnected from a fixed power source. The power bank 200 can also be connected to the turntable assembly's drive mechanism, providing rotational power to the turntable assembly.
[0035] The portable cooking cup described above integrates heating and stirring by combining the heating coil with a rotatable turntable assembly and a rotating metal inner pot 310. The metal inner pot 310, due to its excellent thermal conductivity, efficiently and evenly transfers the heat generated by the heating coil. The integration of the power bank 200 completely eliminates reliance on a fixed power source, making it a truly portable heating and cooking device.
[0036] The sandwich structure between the cup body 110 and the metal inner liner 310, along with the independent inner lid, helps to keep food warm and prevents soup from overflowing and contaminating the cup body 110 during cooking. The overall solution solves the problem of obtaining hot food outdoors as mentioned in the background art.
[0037] In some embodiments of the present invention, such as Figure 3 As shown, the turntable assembly also includes a disc body 500 and an annular track assembly 600. The disc body 500 is cylindrical, and a first chamber for accommodating the heating coil is formed inside it. The annular track assembly 600 includes an inner ring 610 and an outer ring 620 that are rotatable relative to each other. The outer wall of the outer ring 620 is connected to the side wall of the cup body 110, and the inner wall of the inner ring 610 is connected to the outer wall of the disc body 500.
[0038] The disc body 500 is formed in a cylindrical shape (such as a cylinder), and has a first chamber inside for housing and protecting the heating coil. The disc body 500 serves as the carrier of the heating coil and the connecting base for the metal inner liner 310.
[0039] The annular track assembly 600 includes an inner ring 610 and an outer ring 620 that are rotatable relative to each other. The outer wall of the outer ring 620 is connected (e.g., by interference fit, snap-fit, or adhesive) to the side wall of the cup body 110, providing a fixed support. The inner wall of the inner ring 610 is connected (also by various mechanical connections) to the outer wall of the disc body 500. This structure allows the disc body 500 (along with its heating coil and metal inner liner 310) to rotate smoothly relative to the fixed outer ring 620 (and the cup body 110) via the inner ring 610.
[0040] like Figure 3 and Figure 4 As shown, the annular track assembly 600 includes an inner ring 610, an outer ring 620, and a needle roller 630.
[0041] The use of the disc body 500 structure makes the installation of the heating coil more stable and safe. The annular track assembly 600 (such as a bearing or a specially designed low-friction rotating ring) provides stable, low-resistance rotational support, ensuring that the turntable assembly can still rotate smoothly and flexibly when bearing the weight of the metal inner liner 310 and its contents, reducing the load on the drive mechanism 700 and improving overall reliability and service life.
[0042] Furthermore, such as Figure 1 and Figure 2 As shown, the portable cooking cup also includes a drive mechanism 700. The drive mechanism 700 includes a rotating shaft that passes through the bottom of the cup body 110 and is connected to the bottom of the plate body 500. The rotating shaft can drive the plate body 500 to rotate.
[0043] The drive mechanism 700 includes a rotating shaft. This shaft passes through the bottom of the cup body 110 (typically via sealed bearings or other components to ensure waterproofing and leak-proofing) and connects to the center of the bottom of the plate body 500 or a specific location. The torque generated by the drive mechanism 700 is transmitted to the plate body 500 via the rotating shaft, thereby driving the entire turntable assembly (including the plate body 500, heating coil, and metal inner liner 310) to rotate. The drive mechanism 700 is connected to a power source 200.
[0044] The power bank 200 supplies power to the drive mechanism 700, which automates the rotation of the turntable assembly, eliminating the need for manual operation. By controlling the drive mechanism 700, the rotation speed, direction, and rotation mode (such as continuous rotation or reciprocating oscillation) of the turntable (and inner pot) can be precisely controlled, thus adapting to different cooking needs (such as slow stirring and stewing or rapid stirring and stir-frying), greatly improving cooking results and convenience.
[0045] Furthermore, the drive mechanism 700 includes a bottom shell and a flat motor. A second chamber is formed inside the bottom shell, which is detachably connected to the bottom of the outside of the cup body 110. The upper surface of the bottom shell is adapted to the shape of the lower surface of the outside of the cup body 110. The bottom of the flat motor is fixed to the bottom inside the bottom shell, and its shaft passes through the bottom shell and the bottom of the cup body 110, connecting to the bottom of the plate body 500.
[0046] As a space-efficient power source, the flat motor is fixed to the bottom of the bottom shell. The output shaft of the flat motor constitutes or connects to the aforementioned rotating shaft. This shaft passes through the bottom shell and the bottom of the cup 110 in sequence, and finally connects to the bottom of the plate 500, directly transmitting the rotational motion of the flat motor to the plate 500.
[0047] The base design modularizes the drive mechanism (700), facilitating assembly, maintenance, and cleaning. The flat motor, due to its small thickness, effectively reduces the overall height of the blender cup, making it more compact and portable. The detachable base connection also facilitates inspection or replacement of the drive unit when necessary.
[0048] Furthermore, such as Figure 2 As shown, the portable cooking cup also includes a temperature sensor 400, which is disposed on the inner wall of the metal inner liner 310 to detect the temperature inside the metal inner liner 310.
[0049] Temperature sensor 400 is installed on the inner wall (such as the side wall or bottom) of the metal inner liner 310 to directly detect the real-time temperature of food or liquid in the inner liner. The sensor type can be a thermocouple, thermistor, etc.
[0050] The introduction of the temperature sensor 400 enables real-time monitoring of cooking temperature. This provides the necessary data foundation for subsequent precise temperature control, allowing the blender cup to be upgraded from a simple heating device into a cooking appliance with intelligent temperature control capabilities, preventing overheating or underheating and ensuring cooking safety and quality.
[0051] Furthermore, the portable blender also includes a controller, which is connected to a power bank 200, a temperature sensor 400, a heating coil, and a flat motor. The controller controls the operation of the heating coil according to the control mode and receives the temperature signal detected by the temperature sensor 400. By adjusting the heating power or on / off state of the heating coil, the controller ensures that the temperature detected by the temperature sensor 400 reaches and is maintained within the predetermined temperature range of the corresponding control mode.
[0052] The controller acts as the "brain" of the cooking cup, and it is connected to the power bank 200 (which obtains power and may manage its output), the temperature sensor 400 (which receives temperature signals), the heating coil (which controls its on / off state and power), and the flat motor (which controls its start / stop, speed, and direction).
[0053] The controller coordinates heating and rotation according to the control mode selected by the user. It receives feedback signals from the temperature sensor 400 and forms a closed-loop temperature control system by adjusting the heating power of the heating coil (such as PWM regulation) or its on / off state, so that the actual temperature inside the inner tank reaches and is maintained within the predetermined temperature range corresponding to the selected mode.
[0054] The integrated controller enables intelligent linkage between heating, stirring, and temperature control. Closed-loop temperature control greatly improves temperature stability and accuracy. Users only need to select a mode, and the controller will automatically complete complex power and flat motor control, achieving convenient one-button operation and obtaining repeatable and ideal cooking results.
[0055] Furthermore, the control modes include a boiling mode, a stewing mode, and a stir-frying mode. In the boiling mode, the preset temperature is the boiling point. Once the temperature reaches the boiling point, the controller controls the heating coil to stop heating or switch to low-power heat preservation. In the stewing mode, the preset temperature range is a first constant temperature range. The controller controls the flat motor to drive the pan 500 and the metal inner pot 310 to rotate back and forth at a first speed. At the same time, the controller controls the heating coil to work intermittently to maintain the temperature within the first constant temperature range. In the stir-frying mode, the controller controls the flat motor to drive the pan 500 and the metal inner pot 310 to rotate back and forth at a second speed higher than the first speed. At the same time, the controller controls the heating coil to work, so that the temperature reaches and is maintained in a second constant temperature range higher than the first constant temperature range.
[0056] For example, the target temperature for the water boiling mode is the boiling point (e.g., 100°C, which can be calibrated according to altitude). The controller controls the heating coil to work at full power until the temperature sensor 400 detects that the water temperature has reached the boiling point. Then, the controller controls the heating coil to stop heating or switch to very low power to maintain a gentle boil / keep the water warm. During this period, the flat motor may not work or may rotate intermittently at low speed.
[0057] For example, the stewing mode has a preset temperature range of the first constant temperature zone (e.g., 80°C-95°C). In this mode, the controller controls the flat motor to drive the plate 500 and the metal inner pot 310 to reciprocate at a low first speed (simulating slow stirring), while controlling the heating coil to work intermittently (e.g., PID control) to precisely maintain the temperature within the range and achieve gentle stewing.
[0058] For example, the pre-set temperature range for the stir-fry mode is a higher second constant temperature range (e.g., 120°C-180°C). The controller controls the flat motor to drive the inner pot to reciprocate at a higher second speed (simulating rapid turning), while controlling the heating coil to work at higher power, so that the temperature can be quickly reached and maintained in this high temperature range, achieving a cooking effect similar to stir-frying.
[0059] With a variety of preset control modes, this cooking cup expands its functionality from simple heating to multi-functional cooking. The boiling mode is highly efficient and energy-saving; the stewing mode ensures even heating of broth and food, preventing sticking; and the stir-fry mode, through a combination of high temperature and rapid stirring, can handle some ingredients that require stir-frying or reducing sauces. These three modes cover the most common hot food needs outdoors, greatly enriching the user experience.
[0060] In some embodiments of the present invention, the inner cover is made of silicone and has ventilation holes.
[0061] The inner cover is made of silicone, which has good flexibility, heat resistance, and sealing properties. Ventilation holes are formed on the inner cover; these holes can be single or multiple tiny pores.
[0062] The silicone inner lid fits snugly to the minute tolerances of different inner pot openings, ensuring a tight seal and preventing liquid from splashing out during rotation. Its flexibility also makes it easy to open and close. The vent holes prevent excessive pressure buildup caused by a complete steam seal when heating liquids, improving safety. Slight venting also helps develop flavor in certain cooking processes (such as stewing).
[0063] In some embodiments of the present invention, the metal inner liner 310 is magnetically connected to the disc body 500.
[0064] Magnetic connection refers to setting magnets or magnetic materials that attract each other on the bottom of the metal inner liner 310 and the upper surface of the plate 500 respectively (such as the bottom of the inner liner being made of magnetic stainless steel and the plate 500 having embedded magnets), so that the two can be detachably fixed by magnetic force.
[0065] The magnetic connection makes it very convenient to put in and take out the metal inner liner 310, without the need for knobs or clips for alignment. This facilitates cleaning the inner liner and placing / removing it into the cup body 110. The connection is reliable and will not fall off at normal speeds, but it can be easily separated under certain external force, improving the user experience and ease of use.
[0066] In some embodiments of the present invention, the mobile power supply 200 is formed in the shape of a column and is detachably connected to the bottom of the drive mechanism 700.
[0067] The power bank 200 is formed in a cylindrical shape, and its shape can be coordinated with the bottom contour of the cup body 110.
[0068] For example, the top of the power bank 200 has a threaded or strong snap-fit interface that matches the bottom of the casing, enabling simultaneous physical and electrical connection.
[0069] The columnar design facilitates grip and integrates seamlessly with the cup body 110, maintaining an overall aesthetic appeal. The detachable connection to the bottom of the drive mechanism 700 (base shell) allows the power bank 200 to function as an independent energy module. It can not only power the blending cup but also charge mobile devices via other output interfaces (such as USB), enhancing its versatility. Furthermore, it facilitates individual charging, replacement, or upgrades of the power bank 200, allowing users to carry a backup power source to extend outdoor usage time.
[0070] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A portable food and beverage cup comprising: The portable cooking cup comprises: a cup body, a top of the cup body being formed with a first opening; a cup cover, the cup cover being capable of covering the first opening, the cup cover and the cup body being capable of enclosing a first cavity; a turntable assembly, the turntable assembly being rotatably arranged at a bottom of an inside of the cup body, the turntable assembly comprising a heating coil; a metal liner, the metal liner being contained in the first cavity, a bottom of the metal liner being connected to an upper surface of the turntable assembly, a top of the metal liner being formed with a second opening, a height of the second opening being lower than a height of the first opening; an inner cover, the inner cover being capable of covering the second opening; a mobile power supply, the mobile power supply being electrically connected to at least the heating coil.
2. The portable blending cup of claim 1, wherein, The turntable assembly further comprises: a disc body, the disc body being formed in a columnar shape, an inside of the disc body being formed with a first chamber for containing the heating coil; a ring-shaped track assembly, the ring-shaped track assembly comprising an inner ring and an outer ring capable of relative rotation, an outer wall of the outer ring being connected to a side wall of the cup body, an inner wall of the inner ring being connected to an outer wall of the disc body.
3. The portable blending cup of claim 2, wherein, The portable cooking cup further comprises: a driving mechanism, the driving mechanism comprising a rotating shaft, the rotating shaft being connected to a bottom of the disc body through a bottom of the cup body, the rotating shaft being capable of driving the disc body to rotate, the driving mechanism being connected to the mobile power supply.
4. The portable culinary cup of claim 3, wherein, The driving mechanism comprises: a bottom shell, an inside of the bottom shell being formed with a second chamber, the bottom shell being detachably connected to a bottom of an outside of the cup body, an upper surface of the bottom shell being adapted to a shape of a lower surface of the outside of the cup body; a flat motor, a bottom of the flat motor being fixed to a bottom of an inside of the bottom shell, a rotating shaft of the flat motor being connected to a bottom of the disc body through the bottom of the bottom shell and the bottom of the cup body.
5. The portable culinary cup according to claim 4, characterized in that, The portable cooking cup further comprises: a temperature sensor, the temperature sensor being arranged on an inner wall of the metal liner to detect a temperature in the metal liner.
6. The portable culinary cup of claim 5, wherein, The portable cooking cup further comprises: a controller, the controller being connected to the mobile power supply, the temperature sensor, the heating coil and the flat motor, the controller controlling the heating coil to work according to a control mode, and receiving a temperature signal detected by the temperature sensor, the controller adjusting a heating power or an on-off state of the heating coil to make the temperature detected by the temperature sensor reach and maintain in a predetermined temperature range corresponding to the control mode.
7. The portable blending cup of claim 6, wherein, The control mode comprises: a boiling mode, the predetermined temperature being a boiling point temperature, when the temperature reaches the boiling point, the controller controls the heating coil to stop heating or to switch to a low-power heat preservation; a stewing mode, the predetermined temperature range being a first constant temperature interval, the controller controls the flat motor to drive the disc body and the metal liner to reciprocatingly rotate at a first rotating speed, and controls the heating coil to intermittently work to maintain the temperature in the first constant temperature interval; a stir-frying mode, the controller controls the flat motor to drive the disc body and the metal liner to reciprocatingly rotate at a second rotating speed higher than the first rotating speed, and controls the heating coil to work to make the temperature reach and maintain in a second constant temperature interval higher than the first constant temperature interval.
8. The portable culinary cup of claim 1, wherein, The material of the inner cover is silica gel, and the inner cover is provided with air permeable holes.
9. The portable culinary cup of claim 2, wherein, The metal inner container is magnetically connected with the disc body.
10. The portable culinary cup of claim 3, wherein, The mobile power supply is formed in a columnar shape, and the bottom of the driving mechanism is detachably connected.