Cooking apparatus and cooking control method

By using a rotating heating element and circulating airflow design, the problems of difficult cleaning, large space occupation, and limited functionality of existing cooking equipment are solved, achieving self-cleaning and multi-functional heating effects.

CN115553630BActive Publication Date: 2026-01-23GREE ELECTRIC APPLIANCE INC OF ZHUHAI
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Patent Information

Application Number
CN202211287663.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-10-20
Publication Date
2026-01-23
Estimated Expiration
2042-10-20

AI Technical Summary

Technical Problem

Existing cooking equipment has a complex structure for its heat source and fan, making it difficult to clean, taking up a lot of space, and having limited functionality.

Method used

It uses a rotatable heating element as a heat source, combined with air duct and damper design, to form a circulating airflow, achieving self-cleaning and multi-functional heating.

Benefits of technology

It improves the utilization rate of the internal space of cooking equipment, enhances the functional diversity of the heat source, and achieves a self-cleaning effect through centrifugal force, simplifying the cleaning process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to a kind of cooking equipment and cooking control method, it is related to cooking equipment technical field.The cooking control method of the present application includes the following operating steps: control the heating body of cooking equipment heat generation, judge whether the internal temperature of the cooking equipment reaches first preset temperature;When temperature reaches first preset temperature, control the heating body rotation to output first airflow to the heating target in the cooking equipment;The heating target is heated for first preset time by the first airflow, judge whether the heating target reaches preset state;When the heating target reaches preset state, control the heating body to stop heating.It is convenient to improve the self-cleaning ability of heat source, and reduce the space size occupied by heat source and air source, increase the functional diversity of heat source.
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Description

Technical Field

[0001] This invention relates to the field of cooking equipment technology, and particularly to a cooking device and a cooking control method. Background Technology

[0002] Existing cooking equipment such as steam ovens, air fryers, and electric stoves are popular kitchen appliances due to their versatility, ease of operation, and ability to cook a variety of delicious dishes.

[0003] Common cooking appliances such as steam ovens and air fryers typically use a fixed heat source (heating element) to heat food. A fan inside the appliance circulates air, ensuring even high-temperature cooking. However, using a fixed heat source (heating element) and fan for cooking presents several problems: 1. Difficult to clean: The heating element has a complex structure and is stationary, making it prone to accumulating dirt and grime. 2. Space-consuming: In addition to the heating element, the fan also takes up space, compressing the overall space of the cooking appliance. 3. Limited functionality: The fan's function is limited to blowing air to promote hot air circulation and even heating; its function is singular. Summary of the Invention

[0004] This invention provides a cooking device and cooking control method that facilitates the improvement of the self-cleaning ability of the heat source, reduces the space occupied by the heat source and air source, and increases the functional diversity of the heat source.

[0005] In a first aspect, the present invention provides a cooking control method, comprising the following steps: controlling the heating element of a cooking device to heat up, determining whether the internal temperature of the cooking device has reached a first preset temperature; when the temperature reaches the first preset temperature, controlling the heating element to rotate to output a first airflow to a heating target inside the cooking device; heating the heating target for a first preset time using the first airflow, and determining whether the heating target has reached a preset state.

[0006] In one embodiment, after controlling the heating element to stop heating when the heating target reaches a preset state, the method further includes the following steps: maintaining the heating element in rotation for a second preset time, determining whether the heating target has reached a second preset temperature; and controlling the heating element to stop rotating when the heating target reaches the second preset temperature. Through this embodiment, after the heating element stops heating, rotating the heating element increases the airflow speed inside the cooking device, thereby improving the heat dissipation efficiency of the heating target.

[0007] In one embodiment, after controlling the heating element to stop heating when the heating target reaches a preset state, the method further includes the following steps: controlling the heating element to rotate in the opposite direction for a third preset time to output a second airflow to the heating target in the opposite direction to the first airflow; determining whether the heating target has reached a third preset temperature; and controlling the heating element to stop rotating when the heating target reaches the third preset temperature. This embodiment achieves the extraction of hot air from the cooking device and the output of cold outside air to the heating target, improving the cooling efficiency of the heating target and enabling it to quickly cool to a suitable temperature for consumption.

[0008] In one embodiment, before heating the target for a first preset time using the first airflow, the method further includes the following steps: determining whether the rotation speed of the heating element has reached a preset speed; if not, controlling the heating element to increase its rotation speed until it reaches the preset speed; if so, maintaining the rotation speed of the heating element unchanged and heating for the first preset time. This embodiment stabilizes the rotation speed of the heating element before heating for the first preset time, ensuring stable airflow speed, uniform heating of the target, and improved cooking results.

[0009] In one embodiment, the preset rotational speed is greater than or equal to 120 rpm.

[0010] In one embodiment, the first preset temperature is greater than or equal to 150°C.

[0011] Secondly, the present invention provides a cooking device, including a housing, wherein a rotatable shaft is disposed inside the housing, and a heating element is sleeved on the shaft, the heating element being blade-shaped.

[0012] In one embodiment, a plurality of spaced-apart heating elements are mounted on the rotating shaft. This embodiment ensures the stability of the airflow generated during rotation.

[0013] In one embodiment, the housing is provided with an air duct communicating with the interior of the housing, and an air damper is provided on the side wall of the housing. The air duct and the air damper are located on both sides of the heating element along the airflow direction. The heating element rotates to keep the airflow inside the housing flowing. By using the air duct and air damper in this embodiment, circulating air can be formed during the rotation of the heating element, ensuring the stability of the airflow inside the housing.

[0014] In one embodiment, the surface of the heating element is provided with a lotus leaf-inspired coating. Through this embodiment, during the rotation of the heating element, the centrifugal force causes oil stains adhering to the surface of the heating element to automatically detach, achieving a certain degree of self-cleaning effect. Compared to a fixed heat source, this effectively prevents oil stains from adhering to the heating element for extended periods, thus avoiding interference with its normal operation.

[0015] Compared with existing technologies, the advantages of this invention are that the heat source and air source within the cooking device are integrated into one unit, reducing the need for fans and the space occupied by fans, thus increasing the usable space inside the cooking device. This also allows the heating element to have both air intake and exhaust functions, enhancing its functionality. Furthermore, the heating element itself can rotate, allowing centrifugal force to remove oil and dirt from its surface, thus providing a degree of self-cleaning. Attached Figure Description

[0016] The invention will now be described in more detail with reference to embodiments and the accompanying drawings.

[0017] Figure 1 This is a logical diagram of the first cooking stage in an embodiment of the present invention;

[0018] Figure 2 This is a logical diagram of the second cooking stage in an embodiment of the present invention;

[0019] Figure 3 This is an overall schematic diagram of the cooking equipment;

[0020] Figure 4 This is the first schematic diagram of the heating element;

[0021] Figure 5 This is a second schematic diagram of the heating element;

[0022] Figure 6 This is a schematic diagram of airflow movement when the heating element rotates clockwise;

[0023] Figure 7 This is a schematic diagram of airflow movement when the heating element reverses.

[0024] Figure label:

[0025] 1. Motor; 2. Shaft; 3. Heating element; 4. Housing; 5. Top cover; 6. Damper; 7. Door structure; 8. Air duct. Detailed Implementation

[0026] The invention will now be further described with reference to the accompanying drawings.

[0027] Example 1

[0028] This invention proposes a cooking control method, comprising the following steps:

[0029] S10. Control the heating element of the cooking device to generate heat, and determine whether the internal temperature of the cooking device has reached the first preset temperature.

[0030] Specifically, the first preset temperature is greater than or equal to 150°C, and a temperature sensor is installed inside the cooking device to monitor the internal temperature of the cooking device in real time.

[0031] S20. When the temperature reaches the first preset temperature, control the heating element to rotate so as to output the first airflow to the heating target in the cooking device.

[0032] Specifically, the gas flow direction of the cooking equipment is as follows: Figure 6 As shown, the heating element rotates, allowing outside air to enter the cooking device through the upper air duct. The air inside the device is then exhausted through the side wall vents. When the internal temperature of the cooking device has not reached the preset temperature, the heating element continues to heat until the preset temperature is reached. The heating element is mounted on the rotating shaft and rotates synchronously with it. Furthermore, the upper end of the rotating shaft is mounted to the housing of the cooking device via bearings, while the lower end is suspended. The rotating shaft is directly driven by a motor. Another method of shaft rotation involves mounting a driven gear on the shaft and then mounting a driving gear on the motor's output shaft, meshing with the driven gear. This gear transmission enables the shaft to rotate around its own axis. It should be noted that during the rotation of the heating element with the shaft, the wiring on the heating element will not become tangled. For example, a conductive slip ring or similar structure can be used to connect the heating element to the power supply, or the power supply can rotate synchronously with the heating element. The heating element can be a PTC heating element or made of silicon carbide.

[0033] S21. Determine whether the rotation speed of the heating element has reached the preset rotation speed.

[0034] S22. If the rotation speed of the heating element does not reach the preset rotation speed, control the heating element to increase its rotation speed until the preset rotation speed is reached.

[0035] Specifically, the preset rotation speed is preferably greater than or equal to 120 rpm.

[0036] S23. If the rotation speed of the heating element reaches the preset speed, then the rotation speed of the heating element is kept constant, and the heating is continued for the first preset time.

[0037] S30. The heating target is heated for a first preset time by the first airflow, and it is determined whether the heating target has reached the preset state.

[0038] Specifically, one of the preset states of the heating target is that the heating target is mature, or reaches the desired edible state.

[0039] S40. When the heating target reaches the preset state, control the heating element to stop heating and complete the cooking process.

[0040] Example 2

[0041] like Figure 1 As shown, the present invention proposes a cooking control method, comprising the following steps:

[0042] S10. Control the heating element of the cooking device to generate heat, and determine whether the internal temperature of the cooking device has reached the first preset temperature.

[0043] S20. When the temperature reaches the first preset temperature, control the heating element to rotate so as to output the first airflow to the heating target in the cooking device.

[0044] S30. The heating target is heated for a first preset time by the first airflow, and it is determined whether the heating target has reached the preset state.

[0045] S40. When the heating target reaches a preset state, control the heating element to stop heating.

[0046] S50. Continue rotating the heating element for a second preset time, and determine whether the heating target has reached the second preset temperature.

[0047] Specifically, the heating element is located at the top of the cooking device. The heating element does not continue to generate heat. By rotating the heating element, cold air from outside the cooking device enters the cooking device and pushes out the manhole inside the cooking device, allowing the heating target to quickly stop heating, avoiding damage to the preset state of the food and causing cooking failure. At the same time, it accelerates the heat dissipation of the heating target, making it convenient for the user to remove the heating target from the cooking device.

[0048] S60. When the heating target reaches the second preset temperature, control the heating element to stop rotating.

[0049] Specifically, the second preset temperature can be greater than or equal to 75°C. If the second preset temperature is not reached, the heating element will continue to rotate until the second preset temperature is reached to complete the cooking process.

[0050] Example 3

[0051] This invention proposes a cooking control method, comprising the following steps:

[0052] S10. Control the heating element of the cooking device to generate heat, and determine whether the internal temperature of the cooking device has reached the first preset temperature.

[0053] S20. When the temperature reaches the first preset temperature, control the heating element to rotate so as to output the first airflow to the heating target in the cooking device.

[0054] S30. The heating target is heated for a first preset time by the first airflow, and it is determined whether the heating target has reached the preset state.

[0055] S40. When the heating target reaches a preset state, control the heating element to stop heating.

[0056] S50. Control the heating element to rotate in the opposite direction for a third preset time, so as to output a second airflow to the heating target that is opposite to the direction of the first airflow;

[0057] Specifically, such as Figure 2 As shown, the heating element is reversed, and the heating element directly draws the hot air inside the cooking device out of the cooking device through the air duct, further improving the heat dissipation efficiency of the heating target inside the cooking device.

[0058] S60. Determine whether the heating target has reached the third preset temperature;

[0059] Specifically, the third preset temperature is less than or equal to 55℃.

[0060] S61. After the heating target reaches the preset third temperature, if the user has set a palatable temperature, the heating target will be further reduced to the palatable temperature according to the user's usage needs.

[0061] S70. When the heating target reaches the third preset temperature, control the heating element to stop rotating to complete the cooking process.

[0062] Example 4

[0063] like Figure 3 As shown, the present invention provides a cooking device, including a housing 4, a rotating shaft 2 is provided inside the housing 4, and a heating element 3 is sleeved on the rotating shaft 2. The heating element 3 is blade-shaped.

[0064] Specifically, the cooking equipment includes air fryers, ovens, etc.

[0065] In one embodiment, the blade shape is that of a fan blade. This embodiment ensures the stability of the airflow generated during its rotation.

[0066] In one embodiment, a plurality of heating elements 3 are arranged at intervals on the rotating shaft 2.

[0067] Specifically, multiple spaced heating elements 3 are evenly distributed along the axial direction of the rotating shaft 2.

[0068] In one embodiment, the rotating shaft 2 can rotate clockwise or counterclockwise around its own axis to form a first airflow and a second airflow with opposite airflow directions inside the housing 4, respectively. The heating element 3 is located in the upper space of the cooking device, that is, the first airflow is generated when the heating element 3 rotates clockwise, that is, the flow direction of the first airflow is from the air duct 8 to the air damper 6.

[0069] Specifically, the flow direction of the first airflow is as follows: Figure 6 As shown, the flow direction of the second airflow is as follows Figure 7 As shown, Figure 6 and Figure 7 The arrows in the diagram indicate the direction of airflow.

[0070] In one embodiment, the housing 4 is provided with an air duct 8 communicating with the interior of the housing 4, and an air damper 6 is provided on the side wall of the housing 4. The air duct 8 and the air damper 6 are located on both sides of the heating element 3 along the airflow direction. The heating element 3 rotates to keep the airflow inside the housing 4 in a flowing state. By using the air duct 8 and the air damper 6 in this embodiment, circulating air can be formed during the rotation of the heating element 3, ensuring the stability of the airflow inside the housing 4. Figure 4 and Figure 5 As shown, a motor 1 connected to the rotating shaft 2 is also provided on the housing 4. A door structure 7 is also provided on the side wall of the housing 4 located between the two dampers 6.

[0071] Specifically, the top of the housing 4 has a removable top cover 5, which is detachably connected to the housing 4 by bolts. An air duct 8 passes through the top cover 5, and an air damper 6 is located on the side wall of the housing 4. The air damper 6 has a louvered structure, and the opening size of the air damper 6 can be adjusted by adjusting the louvered structure.

[0072] In one embodiment, the surface of the heating element 3 is provided with a lotus leaf-inspired coating. Through this embodiment, during the rotation of the heating element 3, the centrifugal force causes oil stains adhering to its surface to automatically detach, achieving a certain degree of self-cleaning effect. Compared to a fixed heat source, this effectively prevents oil stains from adhering to the heating element 3 for extended periods, thus avoiding interference with its normal operation.

[0073] Although the invention has been described with reference to preferred embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A cooking control method, characterized in that, The following steps are included: Control the heating element of the cooking device to generate heat, and determine whether the internal temperature of the cooking device has reached a first preset temperature; When the temperature reaches the first preset temperature, the heating element is controlled to rotate to output a first airflow to the heating target inside the cooking device; wherein, the first airflow enters the interior of the cooking device through the air duct at the upper end of the cooking device, and then exits through the air dampers on both sides of the cooking device; The heating target is heated for a first preset time by the first airflow, and it is determined whether the heating target has reached a preset state. When the heating target reaches a preset state, the heating element is controlled to stop heating; The heating element is controlled to rotate in the opposite direction for a third preset time to output a second airflow to the heating target in the opposite direction to the first airflow; wherein the second airflow enters the cooking device through the dampers on both sides of the cooking device and is then discharged through the air duct at the top of the cooking device; Determine whether the heating target has reached the third preset temperature; When the heating target reaches the third preset temperature, the heating element is controlled to stop rotating.

2. The cooking control method according to claim 1, characterized in that, After controlling the heating element to stop heating when the heating target reaches the preset state, the following steps are also included: The heating element is kept rotating for a second preset time, and it is determined whether the heating target has reached a second preset temperature. When the heating target reaches the second preset temperature, the heating element is controlled to stop rotating.

3. The cooking control method according to claim 1 or 2, characterized in that, Before the target is heated for a first preset time by the first airflow, the following steps are also included: Determine whether the rotational speed of the heating element has reached the preset speed; If not, the heating element is controlled to increase its rotation speed until the preset rotation speed is reached; If so, the rotation speed of the heating element remains constant, and heating continues for the first preset duration.

4. The cooking control method according to claim 3, characterized in that, The preset rotation speed is greater than or equal to 120 rpm.

5. The cooking control method according to claim 1 or 2, characterized in that, The first preset temperature is greater than or equal to 150°C.

6. A cooking apparatus employing the cooking control method according to any one of claims 1-5, characterized in that, It includes a housing, inside which is a rotatable shaft, and a heating element is sleeved on the shaft. The heating element is blade-shaped.

7. The cooking apparatus according to claim 6, characterized in that, Multiple heating elements are arranged at intervals on the rotating shaft.

8. The cooking apparatus according to claim 6, characterized in that, The housing is provided with an air duct that communicates with the interior of the housing, and the side wall of the housing is provided with a damper. The heating element rotates to keep the airflow inside the housing in a flowing state.

9. The cooking apparatus according to claim 6, characterized in that, The surface of the heating element is provided with a lotus leaf-inspired coating.

Citation Information

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