Control method of steaming and baking equipment and steaming and baking equipment

Abstract

The invention relates to the technical field of household appliances, particularly provides a control method of steaming and baking equipment and the steaming and baking equipment, and aims to solve the problem of non-uniform steaming and baking of the existing steaming and baking equipment. Therefore, the steaming and baking equipment comprises a box body and a baking tray installed in the box body, the baking tray is divided into a plurality of areas in the circumferential direction of the baking tray, and the control method comprises the steps that the temperature of each area of the baking tray is obtained, and according to the temperature of each area, the baking tray is selectively rotated so that the area with the low temperature on the baking tray can be rotated to the position of the area with the high temperature. According to the steaming and baking equipment, the baking tray is controlled to rotate, so that the low-temperature area on the baking tray rotates to the high-temperature area, food can be uniformly heated in the steaming and baking process, and the problems of non-uniform steaming and baking coloring and the like are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and particularly provides a control method and a steaming and baking device for a steaming and baking device. Background Art

[0002] At present, steam ovens have become one of the commonly used kitchen appliances in many families. Through steam ovens, various foods such as meat, bread, and pastries can be baked. When the existing steam ovens steam and bake foods, due to the uneven temperature field distribution in the heating cavity, the foods are not heated evenly, resulting in uneven coloring of the foods during steaming and baking, which affects the edible taste of the foods.

[0003] Some steam ovens solve the problem of uneven steaming and baking by setting a rotatable baking tray. During the cooking process, the baking tray can rotate continuously. However, the effect is not ideal, and it causes serious power consumption of the steam oven.

[0004] Therefore, a new technical solution is needed in this field to solve the above problems. Summary of the Invention

[0005] The present invention aims to solve the above technical problems, that is, to solve the problem of uneven steaming and baking of the existing steaming and baking devices.

[0006] In a first aspect, the present invention provides a control method for a steaming and baking device. The steaming and baking device includes a box body and a baking tray installed in the box body. The baking tray is divided into a plurality of regions along its circumferential direction. The control method includes: obtaining the temperature of each region of the baking tray, and selectively rotating the baking tray according to the temperature of each region so that the region with a lower temperature on the baking tray rotates to the position of the region with a higher temperature.

[0007] In a preferred technical solution of the above control method for a steaming and baking device, the number of the regions is two, denoted as a first region and a second region. The step of "selectively rotating the baking tray according to the temperature of each region so that the region with a lower temperature on the baking tray rotates to the position of the region with a higher temperature" specifically includes: calculating the difference between the temperature of the first region and the temperature of the second region, and selectively rotating the baking tray according to the difference so that the first region rotates to the position of the second region.

[0008] In a preferred technical solution of the above control method for a steaming and baking device, the step of "selectively rotating the baking tray according to the difference so that the first region rotates to the position of the second region" specifically includes: comparing the absolute value of the difference with a first preset value, and selectively rotating the baking tray according to the comparison result so that the first region rotates to the position of the second region.

[0009] In the preferred technical solution of the control method of the above steaming and baking device, the step of "selectively rotating the baking tray according to the comparison result so that the first area rotates to the position of the second area" specifically includes: if the absolute value of the difference is greater than the first preset value, rotate the baking tray so that the first area rotates to the position of the second area; if the absolute value of the difference is not greater than the first preset value, do not rotate the baking tray.

[0010] In the preferred technical solution of the control method of the above steaming and baking device, the number of the areas is at least three, and the step of "selectively rotating the baking tray according to the temperature of each area so that the area with a lower temperature on the baking tray rotates to the position of the area with a higher temperature" specifically includes: calculating the difference between the temperature of the area with the highest temperature and the temperature of the area with the lowest temperature, and selectively rotating the baking tray according to the difference so that the area with the lowest temperature rotates to the position of the area with the highest temperature.

[0011] In the preferred technical solution of the control method of the above steaming and baking device, the step of "selectively rotating the baking tray according to the difference so that the area with the lowest temperature rotates to the position of the area with the highest temperature" specifically includes: comparing the difference with a second preset value, and selectively rotating the baking tray according to the comparison result so that the area with the lowest temperature rotates to the position of the area with the highest temperature.

[0012] In the preferred technical solution of the control method of the above steaming and baking device, the step of "selectively rotating the baking tray according to the comparison result so that the area with the lowest temperature rotates to the position of the area with the highest temperature" specifically includes: if the difference is greater than the second preset value, rotate the baking tray so that the area with the lowest temperature rotates to the position of the area with the highest temperature; if the difference is not greater than the second preset value, do not rotate the baking tray.

[0013] In the preferred technical solution of the control method of the above steaming and baking device, the step of "acquiring the temperature of each area of the baking tray" specifically includes: detecting the temperature of each area of the baking tray multiple times at intervals of a set time, and taking the average value of the multiple temperatures of the area as the temperature of the area.

[0014] In a second aspect, the present invention further provides a steaming and baking device, which includes a controller configured to be able to execute the above control method.

[0015] In the preferred technical solution of the above steaming and baking device, the steaming and baking device is a steamer, an oven or a steam oven.

[0016] Those skilled in the art can understand that during the operation of traditional steam cooking equipment, due to the uneven temperature field distribution in the heating chamber of the steam cooking equipment, the temperature distribution on the baking tray is different, resulting in uneven heating of the food during steaming and baking. Eventually, the food is unevenly colored during steaming and baking, affecting the taste of the food. Some steam cooking equipment solves the problem of uneven steaming and baking by setting the baking tray as a continuously rotating baking tray, but the steaming and baking effect is not ideal, and the power consumption of the steam cooking equipment is increased. The steam cooking equipment of the present invention divides the baking tray into multiple regions along its circumferential direction. The steam cooking equipment can regularly obtain the temperature of each region, and then selectively control the rotation of the baking tray according to the temperature of each region, so that the region with a lower temperature on the baking tray rotates to the position of the region with a higher temperature. Therefore, during the steaming and baking process of the food, it can be evenly heated, avoiding problems such as uneven coloring during steaming and baking. At the same time, the steam cooking equipment controls the directional rotation of the baking tray according to the temperature of each region on the baking tray, saving electric energy compared with the traditional continuously rotating baking tray.

[0017] Further, the present invention determines whether to rotate the turntable by comparing the absolute value of the difference between the temperature of the first region and the temperature of the second region with a first preset value. In this way, only when the difference between the temperature of the first region and the temperature of the second region is greater than a certain value, the controller controls the baking tray to rotate, which can avoid the situation that the baking tray rotates even when the temperature difference between the first region and the second region is not large, thus being more energy-saving.

[0018] Furthermore, the present invention divides the baking tray of the steam cooking equipment into at least three regions. The more regions the baking tray is divided into, the more beneficial it is for the steam cooking equipment to steam and bake evenly.

[0019] Furthermore, the present invention takes the average value of multiple temperatures in each region as the temperature of each region, which can avoid misjudgment caused by temperature fluctuations, thereby improving the accuracy of the control of the steam cooking equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The following describes the preferred embodiments of the present invention with reference to the drawings. In the drawings:

[0021] Figure 1 is a schematic structural diagram of the steam cooking equipment of the present invention;

[0022] Figure 2 is a flowchart of the control method of the steam cooking equipment of the present invention;

[0023] Figure 3 is a schematic structural diagram of the first embodiment of the steam cooking equipment of the present invention;

[0024] Figure 4 is a flowchart of the first embodiment of the control method of the steam cooking equipment of the present invention;

[0025] Figure 5 It is a schematic structural diagram of the second embodiment of the steaming and baking device of the present invention;

[0026] Figure 6 It is a flowchart of the second embodiment of the control method of the steaming and baking device of the present invention.

[0027] List of reference numerals:

[0028] 1. Cabinet;

[0029] 2. Baking tray;

[0030] 3. Driving motor;

[0031] 4. Temperature sensor. Detailed implementation manners

[0032] The following describes the preferred implementation manners of the present invention with reference to the accompanying drawings. Those skilled in the art should understand that these implementation manners are only used to explain the technical principle of the present invention and are not intended to limit the protection scope of the present invention.

[0033] It should be noted that in the description of the present invention, the terms indicating directions or positional relationships such as "inside", "outside", "above", "below", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0034] In addition, it should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "connected", and "installed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0035] Based on the problem of uneven steaming and baking of existing steaming and baking devices pointed out in the background art, the present invention provides a control method for a steaming and baking device, aiming to control the rotation of the baking tray by enabling the steaming and baking device to obtain the temperature of each area on the baking tray, so that the area with a lower temperature on the baking tray rotates to the position of the area with a higher temperature, thereby enabling the food to be evenly heated during the steaming and baking process and avoiding problems such as uneven coloring during steaming and baking.

[0036] Specifically, first refer to Figure 1 , Figure 1 It is a schematic structural diagram of the steaming and baking device of the present invention.

[0037] As Figure 1As shown in the figure, the present invention provides a steaming and baking device, including a box body 1 and a baking tray 2 installed in the box body 1. The baking tray 2 is circumferentially divided into multiple regions.

[0038] Exemplarily, as Figure 1 shown in the figure, the steaming and baking device of the present invention includes a box body 1 and a baking tray 2 installed in the box body 1. There is a heating chamber in the box body 1, the baking tray 2 is installed in the heating chamber, a driving motor 3 is also installed in the box body 1, an opening is provided at the bottom of the heating chamber, and the driving motor 3 is fixedly connected to the baking tray 2 through the opening. The baking tray 2 is circumferentially divided into multiple regions along its circumference, and a temperature sensor 4 is provided on each region. The temperature sensor 4 is electrically connected to the controller of the steaming and baking device. The temperature sensor 4 can transmit the temperature information of each region on the baking tray 2 to the controller. The controller can control the driving motor 3 to drive the baking tray 2 to rotate by discriminating and screening the temperature information, so that the region with a lower temperature on the baking tray 2 rotates to the position of the region with a higher temperature, so that the food can be evenly heated during the steaming and baking process, avoiding problems such as uneven coloring during steaming and baking.

[0039] It should be noted that the present invention does not limit the connection method between the driving motor 3 and the baking tray 2. For example, those skilled in the art can snap, plug, or integrally set the driving motor 3 and the baking tray 2, etc. Such adjustments and changes to the specific connection method between the driving motor 3 and the baking tray 2 do not deviate from the principle and scope of the present invention, and should all be limited within the protection scope of the present invention.

[0040] It should also be noted that the present invention does not limit the number of temperature sensors 4 installed in each region of the baking tray 2. For example, those skilled in the art can install one, two, or multiple temperature sensors 4 in each region, etc. Such adjustments and changes to the specific number of temperature sensors 4 installed in each region on the tray do not deviate from the principle and scope of the present invention, and should all be limited within the protection scope of the present invention.

[0041] Certainly, the present invention preferably installs one temperature sensor 4 in each region of the baking tray 2 and installs it in the center to save costs.

[0042] It should be further noted that the present invention does not limit the number of regions divided on the baking tray 2. For example, those skilled in the art can divide the regions on the baking tray 2 into two, three, or four, etc. Such adjustments and changes to the specific number of regions divided on the baking tray 2 do not deviate from the principle and scope of the present invention, and should all be limited within the protection scope of the present invention.

[0043] Then refer to Figure 2 , Figure 2 which is a flowchart of the control method of the steaming and baking device of the present invention.

[0001] On the other hand, based on the above-described steaming and baking device, the present invention also provides a control method for a steaming and baking device. As Figure 2 shown, the control method of the present invention includes the following steps:

[0044] S100: Obtain the temperature of each area of the baking tray 2.

[0045] Exemplarily, as Figure 3 and Figure 5 shown, a temperature sensor 4 is installed at the center position of each area on the baking tray 2 of the present invention. The temperature sensor 4 is electrically connected to the controller of the steaming and baking device. The temperature sensor 4 can transmit the temperature information of each area on the baking tray 2 to the controller, so that the controller obtains the temperature information of each area on the baking tray 2.

[0002] Preferably, in the above step S100, the step of "obtaining the temperature of each area of the baking tray 2" specifically includes:

[0046] S110: Detect the temperature of each area of the baking tray 2 multiple times at intervals of a set time, and use the average value of the multiple temperatures of the area as the temperature of the area.

[0047] Exemplarily, the preset heating time of the steaming and baking device is 30 min. The temperature sensors 4 in each area of the baking tray 2 detect the temperature of each area 50 times every 5 min, and transmit the detected data information electrically to the controller. The controller uses the average value of the 50 temperature values of each area as the temperature value of that area.

[0048] That is to say, every 5 min, the controller can collect and calculate the temperature value of each area on the baking tray 2.

[0049] It should be noted that the present invention does not limit the temperature detection interval and number of times of the temperature sensor 4. For example, those skilled in the art can set the temperature detection interval of the temperature sensor 4 to 3 min, 8 min, 10 min, etc., and set the temperature detection number of times of the temperature sensor 4 to 10 times, 40 times, 60 times, etc. Such adjustments and changes to the specific temperature detection interval and number of times of the temperature sensor 4 do not deviate from the principle and scope of the present invention and should all be limited within the protection scope of the present invention.

[0050] S200: Selectively rotate the baking tray 2 according to the temperature of each area so that the area with a lower temperature on the baking tray 2 rotates to the position of the area with a higher temperature.

[0051] That is to say, the controller can, according to the temperature information of each area on the baking tray 2 obtained, through discrimination and screening, locate the positions of the areas with low temperature and high temperature, and control the driving electromechanics to drive the baking tray 2 to rotate, so as to rotate the area with low temperature on the baking tray 2 to the position where the area with high temperature is located.

[0003] It should be noted that in practical applications, the highest temperature and the lowest temperature on the baking tray 2 can be directly compared to select whether the baking tray 2 needs to rotate. Or, the difference between the highest temperature and the lowest temperature on the baking tray 2 can be calculated first, and then whether the baking tray 2 needs to rotate can be selected according to the magnitude of this difference. Or, the ratio of the highest temperature to the lowest temperature on the baking tray 2 can be calculated first, and then whether the baking tray 2 needs to rotate can be selected according to the magnitude of this ratio, and so on. Such flexible adjustments and changes do not deviate from the principle and scope of the present invention and should all be limited within the protection scope of the present invention.

[0052] The control method of the steaming and baking device of the present invention will be introduced in detail below in combination with two specific embodiments.

[0053] Embodiment 1

[0054] The following combines Figure 3 and Figure 4 to introduce the first embodiment of the control method of the steaming and baking device of the present invention.

[0055] As Figure 3 shown, the baking tray 2 of this embodiment is circumferentially divided into two areas, denoted as the first area and the second area.

[0056] Exemplarily, the baking tray 2 of this embodiment is evenly divided into two areas by its diameter, denoted as the first area (seen as the left half area from Figure 3 and the second area (seen as the right half area from Figure 3 ), and a temperature sensor 4 is provided at the middle position of both the first area and the second area.

[0057] Exemplarily, as Figure 4 shown, step S200 includes steps S211 to S214.

[0058] S211: Calculate the difference △1 between the temperature of the first area and the temperature of the second area.

[0059] Wherein, the difference △1 = the temperature T1 of the first area - the temperature T2 of the second area.

[0060] S212: Compare the absolute value of the difference △1 with the first preset value A1.

[0061] That is, the absolute value of the difference Δ1 obtained by subtracting the temperature T2 of the second region from the temperature T1 of the first region is compared with the first preset value A1.

[0062] It should be noted that those skilled in the art can flexibly set the first preset value A1 according to the predetermined temperature and time of steaming and baking. For example, the first preset value A1 is set to 1 °C, 3 °C, or 5 °C, etc. Such adjustments and changes to the specific value of the first preset value A1 do not deviate from the principle and scope of the present invention and should all be limited within the protection scope of the present invention.

[0063] S213: If the absolute value of the difference Δ1 is greater than the first preset value A1, the baking tray 2 is rotated to make the first region rotate to the position of the second region.

[0064] Exemplarily, the temperature T1 of the first region is 110 °C, the temperature T2 of the second region is 105 °C, the difference Δ1 between the temperature T1 of the first region and the temperature T2 of the second region is 5 °C, and the first preset value A1 is set to 3 °C. At this time, the difference Δ1 has exceeded the first preset value A1. In this case, the controller controls the drive motor 3 to drive the baking tray 2 to rotate, so that the first region rotates to the position of the second region, that is, the first region and the second region are swapped.

[0065] S214: If the absolute value of the difference Δ1 is not greater than the first preset value A1, the baking tray 2 is not rotated.

[0066] Exemplarily, the temperature T1 of the first region is 100 °C, the temperature T2 of the second region is 102 °C, the difference Δ1 between the temperature T1 of the first region and the temperature T2 of the second region is 2 °C, and the first preset value A1 is set to 3 °C. At this time, the difference Δ1 is not greater than the first preset value A1. In this case, the foods in the first region and the second region are both in a state of uniform heating. At this time, the baking tray 2 is not rotated, so that the foods on the baking tray 2 are continuously and uniformly heated.

[0067] Embodiment 2

[0068] The following combines Figure 5 and Figure 6 to introduce the second embodiment of the control method of the steaming and baking device of the present invention.

[0069] As Figure 5 shown, the baking tray 2 of this embodiment is circumferentially divided into four regions.

[0070] Exemplarily, the baking tray 2 of this embodiment is evenly divided into four regions, denoted as region A, region B, region C, and region D, by two perpendicular diameters, and a temperature sensor 4 is provided at the middle position of each region.

[0071] Exemplarily, asFigure 6 As shown, step S200 includes steps S221 to S224.

[0072] S221: Calculate the difference △2 between the temperature of the area with the highest temperature and the temperature of the area with the lowest temperature.

[0073] Wherein, the difference △2 = the temperature Tmax of the area with the highest temperature - the temperature Tmin of the area with the lowest temperature.

[0074] S222: Compare the difference △2 with the second preset value A2.

[0075] That is to say, compare the difference △2 obtained by subtracting the temperature Tmin of the area with the lowest temperature from the temperature Tmax of the area with the highest temperature with the second preset value A2.

[0076] It should be noted that those skilled in the art can flexibly set the second preset value A2 according to the predetermined temperature and time of steaming and baking. For example, the second preset value A2 can be set to 1°C, 3°C or 5°C, etc. Such adjustments and changes to the specific value of the second preset value A2 do not deviate from the principle and scope of the present invention and should all be limited within the protection scope of the present invention.

[0077] S223: If the difference △2 is greater than the second preset value A2, rotate the baking tray 2 so that the area with the lowest temperature rotates to the position of the area with the highest temperature.

[0078] Exemplarily, the temperature of area A with the highest temperature is the highest, Tmax is 110°C, the temperature of area C with the lowest temperature is the lowest, Tmin is 105°C, the difference △2 between the temperature Tmax of area A with the highest temperature and the temperature Tmin of area C with the lowest temperature is 5°C, and the second preset value A2 is set to 3°C. At this time, the difference △2 has exceeded the second preset value A2. In this case, the controller controls the drive motor 3 to drive the baking tray 2 to rotate, so that the area C with the lowest temperature rotates to the position where area A with the highest temperature is located.

[0079] S224: If the difference △2 is not greater than the second preset value A2, do not rotate the baking tray 2.

[0080] Exemplarily, the temperature Tmax of area A with the highest temperature is 100°C, the temperature Tmin of area C with the lowest temperature is 99°C, the difference △2 between the temperature Tmax of area A with the highest temperature and the temperature Tmin of area C with the lowest temperature is 1°C, and the second preset value A2 is set to 3°C. At this time, the difference △2 is not greater than the second preset value A2. In this case, the food in the area with the lowest temperature and the area with the highest temperature is in a state of uniform heating. At this time, do not rotate the baking tray 2 to make the food on the baking tray 2 continue to be heated evenly.

[0081] Those skilled in the art will understand that although some of the embodiments described herein include certain features included in other embodiments rather than other features, the combination of features of different embodiments means that it is within the scope of this application and forms different embodiments. For example, in the claims of this application, any one of the claimed embodiments can be used in any combination.

[0082] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.

Claims

1. A control method for a steaming and baking device, characterized in that, the steaming and baking device includes a box body and a baking tray installed in the box body, the baking tray is circumferentially divided into a plurality of regions, and the control method includes: obtaining the temperature of each of the regions of the baking tray; selectively rotating the baking tray according to the temperature of each region so that the region with a lower temperature on the baking tray rotates to the position of the region with a higher temperature.

2. The control method for a steaming and baking device according to claim 1, characterized in that, the number of the regions is two, denoted as a first region and a second region, and the step of "selectively rotating the baking tray according to the temperature of each region so that the region with a lower temperature on the baking tray rotates to the position of the region with a higher temperature" specifically includes: calculating the difference between the temperature of the first region and the temperature of the second region; selectively rotating the baking tray according to the difference so that the first region rotates to the position of the second region.

3. The control method for a steaming and baking device according to claim 2, characterized in that, the step of "selectively rotating the baking tray according to the difference so that the first region rotates to the position of the second region" specifically includes: comparing the absolute value of the difference with a first preset value; selectively rotating the baking tray according to the comparison result so that the first region rotates to the position of the second region.

4. The control method for a steaming and baking device according to claim 3, characterized in that, the step of "selectively rotating the baking tray according to the comparison result so that the first region rotates to the position of the second region" specifically includes: if the absolute value of the difference is greater than the first preset value, rotating the baking tray so that the first region rotates to the position of the second region; if the absolute value of the difference is not greater than the first preset value, not rotating the baking tray.

5. The control method for a steaming and baking device according to claim 1, characterized in that, the number of the regions is at least three, and the step of "selectively rotating the baking tray according to the temperature of each region so that the region with a lower temperature on the baking tray rotates to the position of the region with a higher temperature" specifically includes: calculating the difference between the temperature of the region with the highest temperature and the temperature of the region with the lowest temperature; selectively rotating the baking tray according to the difference so that the region with the lowest temperature rotates to the position of the region with the highest temperature.

6. The control method for a steaming and baking device according to claim 5, characterized in that, the step of "selectively rotating the baking tray according to the difference so that the region with the lowest temperature rotates to the position of the region with the highest temperature" specifically includes: comparing the difference with a second preset value; selectively rotating the baking tray according to the comparison result so that the region with the lowest temperature rotates to the position of the region with the highest temperature.

7. The control method for a steaming and baking device according to claim 6, characterized in that, The step of "selectively rotating the baking tray so that the area with the lowest temperature rotates to the position of the area with the highest temperature according to the comparison result" specifically includes: If the difference is greater than the second preset value, rotate the baking tray so that the area with the lowest temperature rotates to the position of the area with the highest temperature; If the difference is not greater than the second preset value, do not rotate the baking tray.

8. The control method of a steaming and baking device according to any one of claims 1 to 7, characterized in that the step of "obtaining the temperature of each area of the baking tray" specifically includes: Detect the temperature of each area of the baking tray multiple times at regular intervals, and take the average value of the multiple temperatures of the area as the temperature of the area.

9. A steaming and baking device, characterized in that it includes a controller configured to be able to execute the control method according to any one of claims 1 to 8.

10. The steaming and baking device according to claim 9, characterized in that the steaming and baking device is a steamer, an oven or a steam oven.

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