CN109124343B

CN109124343B - Cooking utensil cover body, cooking utensil and bubble breaking and overflow preventing method

Info

Publication number: CN109124343B
Application number: CN201710451299.6A
Authority: CN
Inventors: 杨保民; 潘典国; 刘小凯; 杨长胜; 龚弦; 孙毅; 周亚; 瞿月红
Original assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Priority date: 2017-06-15
Filing date: 2017-06-15
Publication date: 2022-01-28
Anticipated expiration: 2037-06-15
Also published as: CN109124343A

Abstract

The invention relates to the technical field of overflow prevention of cooking utensils, and discloses a cooking utensil cover, a cooking utensil and a bubble breaking and overflow prevention method. Culinary art kitchen utensils and appliances lid includes the body, and this internal anti-overflow chamber that is formed with is provided with fan, temperature sensor and controlling means in this, and controlling means is connected with temperature sensor and fan electricity, and controlling means can control the fan according to the culinary art temperature signal that the temperature sensor detected. According to the cooking temperature, whether the fan operates or not can be controlled by the control device, the fan operates at a gear position, the fan can supply air flow with a cooling cutting effect to the anti-overflow cavity during operation, the temperature near the air flow is relatively low, so that high-temperature steam bubbles passing through the vicinity of the air flow can exchange heat and are rapidly cooled and broken into condensate water to flow back, and when the high-temperature steam bubbles without breaking pass through the air flow, the high-temperature steam bubbles are cut by the air flow and are broken, and therefore the overflow of the steam bubbles is effectively avoided.

Description

Cooking utensil cover body, cooking utensil and bubble breaking and overflow preventing method

Technical Field

The invention relates to the technical field of overflow prevention of cooking utensils, in particular to a cooking utensil cover, a cooking utensil and a bubble breaking and overflow prevention method.

Background

Along with the improvement of life quality of people, intelligent cooking utensils are more and more popularized. For example, an electric cooker is a cooking device that converts electric energy into internal energy, and can perform various operation functions such as steaming, boiling, stewing, and simmering on food to shorten cooking time, and is convenient to use, clean and sanitary.

In a conventional structure of a rice cooker product such as an electric cooker, a steam valve is provided on an upper cover of the electric cooker in order to appropriately discharge steam generated inside during use. The steam valve is assembled on the upper cover of the electric cooker through the installation part at the bottom of the steam valve. And a steam channel is formed in the steam valve, so that steam enters the steam valve from a steam inlet at the bottom of the steam channel and is discharged through a steam outlet.

At present, the steam valve is used as a steam discharge channel and also has the function of supplementing the return stroke of rice water and steam, so that the cavity of the steam valve is designed to be as large as possible, but the larger the steam valve is, the larger the influence on the appearance surface of the upper cover is, and the anti-overflow effect of the steam valve cannot be solved necessarily due to the fact that the size of the steam valve is increased. Therefore, in order to prevent the overflow during the cooking process, especially the built-in steam valve structure, it is necessary to control the bubbles and the rice water which may overflow from the pot.

Accordingly, the present application will proceed to substantially solve or mitigate the overflow problem of the prior art.

Disclosure of Invention

The invention aims to provide a cooking utensil cover body, which can control a fan according to cooking temperature in practical use, and the air flow sprayed by the fan can cool and cut high-temperature steam bubbles, so that the overflow of the steam bubbles is effectively avoided.

In order to achieve the above purpose, the present invention provides a cooking utensil cover, comprising a body, wherein an anti-overflow cavity having a steam inlet and a steam outlet is formed in the body, a fan capable of supplying air flow to the anti-overflow cavity, a temperature sensor for detecting cooking temperature in a cooking cavity and a control device are arranged in the body, the control device is electrically connected with the temperature sensor and the fan, and the control device can control the fan according to a cooking temperature signal detected by the temperature sensor.

Through the technical scheme, because controlling means can control the fan according to the culinary art temperature signal that the temperature sensor detected, and the fan can supply with the distinguished and admirable wind to the anti-overflow intracavity, thus, according to the culinary art temperature, controlling means can control whether the fan operates, and fan operation gear, make the fan operation can supply with the distinguished and admirable wind that has the cooling cutting effect to the anti-overflow intracavity, because the temperature near distinguished and admirable is lower relatively, make near high temperature steam bubble through distinguished and admirable will carry out the heat exchange and cool off the breakage into the comdenstion water backward rapidly, and do not have when broken high temperature steam bubble then through distinguished and admirable, will be carried out "cutting" by distinguished and admirable and by the cut, thereby avoided spilling over of steam bubble effectively.

Further, the control device is provided with a first preset operation temperature, and when the cooking temperature detected by the temperature sensor reaches the first preset operation temperature, the control device controls the fan to start to operate from a stop state.

Further, the first preset operating temperature is 50-60 degrees, and preferably, the first preset operating temperature is 55 degrees.

In addition, the control device is provided with a second preset operation temperature, and after the fan operates, when the cooking temperature detected by the temperature sensor reaches the second preset operation temperature, the control device controls the fan to be switched from a low air volume gear to a high air volume gear to operate.

Further, the control device is arranged to control the fan to increase the air volume in real time along with the real-time increase of the cooking temperature detected by the temperature sensor.

Further, the second preset operating temperature is 95-100 °, and preferably, the second preset operating temperature is 98 °.

In addition, when the fan is operated at a high air quantity gear, the air flow supplied into the anti-overflow cavity forms a wind wall to divide the anti-overflow cavity into a high-temperature cavity with the steam inlet and a low-temperature cavity with the steam outlet.

In addition, a blast nozzle is arranged on the side wall or the top wall of the anti-overflow cavity, wherein the blast nozzle is communicated with the fan through an air duct.

In addition, a bottom surface of the spill-proof chamber is disposed obliquely downward toward the steam inlet in a height direction of the cooking utensil cover body.

Further, a bottom surface of the steam passage between the steam outlet and the steam discharge port on the body is disposed obliquely downward from the steam discharge port toward the steam outlet.

The invention also provides a cooking utensil which comprises a cooking utensil body with a cooking cavity, wherein any one of the cooking utensil covers is arranged on the cooking utensil body, and the steam inlet and the temperature sensor are in direct contact with the cooking cavity.

Thus, as described above, the anti-overflow effect of the cooking utensil is remarkably improved, and the overall quality and the user experience are remarkably improved.

Correspondingly, the invention provides a bubble-breaking and overflow-preventing method for cooking kitchenware, which comprises the following steps: detecting the cooking temperature of the cooking cavity through a temperature sensor and sending a cooking temperature signal to a control device; and the control device receives the cooking temperature signal to control a fan communicated with an anti-overflow cavity in the cooking utensil cover body.

Like this, as mentioned above, because can control the fan according to the culinary art temperature signal that the temperature sensor detected through controlling means, and the fan can supply the distinguished and admirable to the anti-overflow intracavity, like this, according to the culinary art temperature, controlling means can control whether the fan operates, and fan operation gear, make the fan operation can supply the distinguished and admirable that has the cooling cutting effect to the anti-overflow intracavity, because the temperature near distinguished and admirable is relatively lower, make the high temperature steam bubble near passing through distinguished and admirable will carry out the heat exchange and cool off the breakage rapidly into the comdenstion water backward flow, and the high temperature steam bubble that does not have the breakage is then when passing through distinguished and admirable, will be carried out "cutting" by distinguished and admirable and broken, thereby avoided overflowing of steam bubble effectively.

Further, when the cooking temperature detected by the temperature sensor reaches a first preset operation temperature, the control device controls the fan to start to operate from a stop state.

In addition, after the fan operates, when the cooking temperature detected by the temperature sensor reaches a second preset operation temperature, the control device controls the fan to be switched from a low air volume gear to a high air volume gear to operate.

Further, along with the real-time increase of the cooking temperature detected by the temperature sensor, the control device controls the fan to increase the air volume in real time.

In addition, when the fan is in high-air-volume gear operation, the air flow supplied into the anti-overflow cavity forms a wind wall to divide the anti-overflow cavity into a high-temperature cavity and a low-temperature cavity, wherein the high-temperature cavity is provided with a steam inlet of the anti-overflow cavity, and the low-temperature cavity is provided with a steam outlet of the anti-overflow cavity.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic diagram of a simple structure of a cover of a cooking utensil according to an embodiment of the present invention, wherein a fan is not operated during a natural cooling stage;

FIG. 2 is a schematic view of the cooking utensil cover of FIG. 1 in a weak drain phase with the blower operating in a low air volume gear;

fig. 3 is a schematic view of the cooking utensil cover of fig. 1 in a forced discharge phase, wherein the fan is operating in a high wind range.

Description of the reference numerals

The cooking utensil comprises a main body 1, a steam inlet 2, a steam outlet 3, an anti-overflow cavity 4, a fan 5, a temperature sensor 6, a control device 7, a high-temperature cavity 8, a low-temperature cavity 9, a tuyere 10, an air duct 11, a steam discharge port 12, a steam channel 13, a cooking inner cavity 14 and a cooking utensil main body 15.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

Referring to the structure shown in fig. 1, the cooking utensil cover provided by the invention comprises a body 1, wherein an anti-overflow cavity 4 with a steam inlet 2 and a steam outlet 3 is formed in the body 1, of course, in the practical use of the cooking utensil cover, the steam inlet 2 is communicated with a cooking cavity of the cooking utensil, a fan 5 (the fan 5 can have various arrangement positions) capable of supplying air flow to the anti-overflow cavity 4 is arranged in the body 1, a temperature sensor 6 and a control device 7 for detecting the cooking temperature in the cooking cavity are arranged in the cooking utensil, the control device 7 is electrically connected with the temperature sensor 6 and the fan 5, and the control device 7 can control the fan 5 according to a cooking temperature signal detected by the temperature sensor 6, for example, whether the fan 5 operates, and the operating air quantity or operating gear position are controlled.

In the technical scheme, because the fan 5 can be controlled according to the cooking temperature signal that the temperature sensor 6 detected by the control device 7, and the fan 5 can supply wind current to the anti-overflow cavity 4, thus, according to the cooking temperature, whether the fan 5 operates can be controlled by the control device 7, and the fan 5 operates the gear, so that the fan 5 can supply wind current with cooling and cutting effects to the anti-overflow cavity 4 during operation, because the temperature near the wind current is relatively low, so that the high-temperature steam bubbles passing through the wind current will carry out heat exchange and rapidly cool and break into condensate water backflow, and when the high-temperature steam bubbles without breakage do not pass through the wind current, the high-temperature steam bubbles will be cut by the wind current and be cut, thereby effectively avoiding the overflow of the steam bubbles.

In the cover of the cooking utensil of the present invention, the control device 7 can control the operation state of the fan 5, for example, after the cooking utensil starts to cook, the fan 5 can start to operate. Or, in order to reduce the energy consumption, in a preferred embodiment, the control device 7 is provided with a first preset operation temperature, when the cooking temperature detected by the temperature sensor 6 reaches the first preset operation temperature, the control device 7 controls the fan 5 to start to operate from a stop state, for example, after the cooking utensil starts to cook, the temperature in the cooking inner cavity starts to rise, before the first preset operation temperature is not reached, the fan 5 does not operate, at this time, the cooking cavity does not generate a large amount of steam bubbles, the overflow prevention can be realized by using the size changes of the steam inlet 2 and the overflow prevention cavity 4, and thus, the structure of the cover body of the cooking utensil is fully utilized to reduce the consumption of electric quantity.

Or, when the temperature sensor 6 detects that the cooking temperature is lower than the first preset operation temperature, the control device 7 may control the fan 5 to stop operating, so as to reduce the consumption of electric quantity.

Of course, in the cooking utensil cover body of the present invention, the first preset operation temperature can be selected according to actual conditions, for example, the first preset operation temperature can be 50-60 degrees, and preferably, the first preset operation temperature is 55 degrees.

After the fan 5 starts to operate, the control device 7 can control the fan 5 to operate at a constant speed all the time, or can also control the rotating speed of the fan 5 to increase in real time according to the increase of the temperature;

or, in a preferred embodiment, in order to improve the anti-overflow effect and save the electric quantity, the control device 7 is provided with a second preset operation temperature, and after the fan 5 operates, when the cooking temperature detected by the temperature sensor 6 reaches the second preset operation temperature, the control device 7 controls the fan 5 to switch from the low air volume gear to the high air volume gear for operation. For example, after the fan 5 operates, and the cooking temperature reaches the first preset operating temperature, the fan 5 starts to operate at a low air volume gear to accelerate the cooling reflux of the vapor in the anti-overflow cavity, so as to break the bubble and prevent the overflow through disturbance, as shown in fig. 2, at this time, the fan 5 can operate at a constant speed or gradually accelerate with the increase of the temperature, until the cooking temperature reaches the second preset operating temperature, the control device 7 controls the fan 5 to switch to the high air volume gear to operate, so as to further accelerate the cooling reflux of the vapor in the anti-overflow cavity, and further improve the effects of breaking the bubble and preventing the overflow.

It should be understood that the second preset operating temperature is not limited to a specific temperature value, that is, the second preset operating temperature may be a determined temperature value (the fan 5 has two operating gears), or may be a plurality of elevated temperature values (the fan 5 has a plurality of operating gears increased by 1, for example, after having two second preset operating temperatures, the fan 5 will have 3 operating gears, such as a low air volume gear, a medium air volume gear, and a high air volume gear).

Further, in order to promote the anti-overflow effect, the control device 7 is set to control the fan 5 to increase the air volume in real time along with the real-time increase of the cooking temperature detected by the temperature sensor 6, for example, when the cooking temperature is between the first preset operation temperature and the second preset operation temperature, the fan 5 can increase the speed along with the real-time increase of the cooking temperature, or after the cooking temperature exceeds the second preset operation temperature, the fan can be operated for a period at a constant speed, and then increase the speed along with the increase of the cooking temperature, and this can be realized through the control device 7.

Of course, in the cooking utensil cover body of the present invention, the second preset operation temperature can be selected according to actual conditions, for example, the second preset operation temperature is 95-100 degrees, and preferably, the second preset operation temperature is 98 degrees.

In addition, after the cooking temperature is high, such as after the second preset operation temperature is reached, in order to enhance the anti-overflow effect, it is preferable that the fan 5 is operated at a high air volume gear position, and the air flow supplied into the anti-overflow chamber 4 forms a wind wall (shown by a dotted line in fig. 3) to divide the anti-overflow chamber 4 into a high temperature chamber 8 having the steam inlet 2 and a low temperature chamber 9 having the steam outlet 3. Thus, as shown in fig. 3, the high temperature chamber and the low temperature chamber in the spill-proof chamber will exchange heat rapidly through the wind wall (as shown by the dotted line and solid line arrows in fig. 3), and the rice water or steam bubbles with a large amount of heat is isolated in the high temperature chamber, so that only the steam with a large amount of heat in the low temperature chamber is discharged through the steam outlet 3, and the rice water or steam bubbles is isolated in the high temperature chamber and enters the circulation or is broken by the wind wall to flow back.

In addition, fan 5 can directly blow to the anti-overflow intracavity, for example, a plurality of fans 5 set up side by side to form the wind post that meets, and a plurality of wind posts then can form the brattice.

Alternatively, in order to simplify the structure, with one fan 5, preferably, as shown in fig. 1, the side wall (which may form the upper and lower high temperature chambers 8 and low temperature chambers 9) or the top wall (which may form the left and right high temperature chambers 8 and low temperature chambers 9) of the spill-proof chamber 4 is provided with a tuyere 10, wherein the tuyere 10 and the fan 5 are communicated through an air duct 11.

Preferably, the tuyere 10 may have a flat air outlet.

In addition, in order to facilitate the backflow, it is preferable that a bottom surface of the spill-preventing chamber 4 is disposed obliquely downward toward the steam inlet 2 in a height direction of the cooking utensil cover body. Thus, liquid formed by the broken vapor bubbles will flow down the sloped bottom surface and back into the cooking cavity through the vapor inlet 2.

Further, the bottom surface of the steam passage 13 between the steam outlet 3 and the steam discharge port 12 on the body 1 is arranged obliquely downward from the steam discharge port 12 toward the steam outlet 3. In this way, the liquid cooled by the steam channel 13 can also flow back into the spill-proof chamber 4 along the inclined bottom surface and further return into the cooking cavity.

In addition, as described in any of the above, the present invention provides a cooking utensil, such as an electric rice cooker, comprising a cooking utensil body 15 having a cooking cavity 14, as shown in fig. 1 to 3, any of the above-described cooking utensil covers being provided on the cooking utensil body 15, wherein the steam inlet 2 and the temperature sensor 6 are in direct contact with the cooking cavity 14.

Like this, according to the culinary art temperature, controlling means 7 can control whether fan 5 operates to and fan 5 operation gear, can supply the air current that has the cooling cutting effect to anti-overflow chamber 4 when making fan 5 operate, because the temperature near the air current is lower relatively, make through near high temperature steam bubble of air current will carry out the heat exchange and cool off the breakage fast and become the comdenstion water backward flow, and do not have when broken high temperature steam bubble then passes through the air current, will be carried out "cutting" by the air current and cut broken, thereby avoided overflowing of steam bubble effectively.

Correspondingly, the invention also provides a bubble-breaking and overflow-preventing method of the cooking utensil, which comprises the following steps: detecting the cooking temperature of the cooking cavity through a temperature sensor and sending a cooking temperature signal to a control device; the control device receives a cooking temperature signal to control the fan communicated with the anti-overflow cavity in the cooking utensil cover body.

Like this, and above similar, owing to can control the fan according to the culinary art temperature signal that the temperature sensor detected through controlling means, and the fan can supply with the distinguished and admirable wind to the anti-overflow intracavity, like this, according to the culinary art temperature, controlling means can control whether the fan operates, and fan operation gear, make the fan operation can supply with the distinguished and admirable wind that has the cooling cutting effect to the anti-overflow intracavity, because the temperature near the distinguished and admirable is lower relatively, make through near high temperature steam bubble of distinguished and admirable will carry out the heat exchange and cool off the breakage into the comdenstion water backward rapidly, and do not have when broken high temperature steam bubble then passes through the distinguished and admirable, will be carried out "cutting" by the distinguished and admirable and broken, thereby avoided overflowing of steam bubble effectively.

Further, the control device can control the operation state of the fan, for example, after the cooking utensil starts to cook, the fan can start to operate. Alternatively, in order to reduce power consumption, in a preferred embodiment, the control device controls the fan to start operating from a stopped state when the cooking temperature detected by the temperature sensor reaches a first preset operating temperature. For example, after the cooking utensil begins to cook, the temperature in the cooking inner cavity begins to rise, and before not reaching first preset operating temperature, the fan does not operate, and at this moment, the cooking cavity does not produce the steam bubble of a large amount, can utilize the change of steam inlet and anti-overflow chamber self size to come the anti-overflow to make full use of cooks the consumption that the structure of kitchen utensil lid self reduces the electric quantity.

Of course, the first preset operating temperature may be selected according to actual conditions, for example, the first preset operating temperature may be 50 ° to 60 °, and preferably, the first preset operating temperature is 55 °.

In order to improve the anti-overflow effect and save the electric quantity, the control device is provided with a second preset operation temperature, and after the fan operates, when the cooking temperature detected by the temperature sensor reaches the second preset operation temperature, the control device controls the fan to be switched to the high air quantity gear operation from the low air quantity gear. For example, after the fan operates, after the cooking temperature reaches the first preset operating temperature, the fan starts to operate at a low air volume gear to accelerate the cooling reflux of the vapor in the anti-overflow cavity, so as to break bubbles and prevent overflow through disturbance, as shown in fig. 2, at this time, the fan can operate at a constant speed or gradually accelerate along with the increase of the temperature, until the cooking temperature reaches the second preset operating temperature, the control device controls the fan to switch to the high air volume gear to operate, so as to further accelerate the cooling reflux of the vapor in the anti-overflow cavity, and further improve the effects of breaking bubbles and preventing overflow.

It should be understood that the second preset operating temperature is not limited to a specific temperature value, that is, the second preset operating temperature may be a determined temperature value (the fan has two operating gears), or may be a plurality of increased temperature values (the fan has a plurality of operating gears increased by 1, for example, after having two second preset operating temperatures, the fan will have 3 operating gears, for example, a low air volume gear, a medium air volume gear, and a high air volume gear).

Further, in order to improve the anti-overflow effect, the control device controls the fan to increase the air quantity in real time along with the real-time increase of the cooking temperature detected by the temperature sensor. For example, when the cooking temperature is between the first preset operation temperature and the second preset operation temperature, the fan can be accelerated along with the real-time increase of the cooking temperature, or after the cooking temperature exceeds the second preset operation temperature, the fan can be operated at a constant speed for a period of time, and then accelerated along with the increase of the cooking temperature, and the acceleration can be realized through the control device.

Of course, the second preset operating temperature may be selected according to actual conditions, for example, the second preset operating temperature is 95-100 degrees, and preferably, the second preset operating temperature is 98 degrees.

In addition, after the cooking temperature is high, for example, after the second preset operation temperature is reached, in order to improve the anti-overflow effect, it is preferable that the fan is operated at a high air volume gear, and the air flow supplied into the anti-overflow chamber forms a wind wall to divide the anti-overflow chamber into a high temperature chamber having a steam inlet and a low temperature chamber having a steam outlet. Thus, as shown in fig. 3, the high temperature chamber and the low temperature chamber in the spill-proof chamber can exchange heat rapidly through the wind wall, and the rice water or steam bubbles with a large amount of heat is isolated in the high temperature chamber, so that only the steam with a large amount of heat in the low temperature chamber is discharged through the steam outlet, and the rice water or steam bubbles is isolated in the high temperature chamber and enters the circulation or is broken by the wind wall to flow back.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.

In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.

Claims

1. A cooking utensil cover body comprises a body (1), and is characterized in that an anti-overflow cavity (4) with a steam inlet (2) and a steam outlet (3) is formed in the body (1), the internal contour dimension of the anti-overflow cavity (4) is larger than the dimension of the steam inlet (2), a fan (5) capable of supplying wind flow with a cooling and cutting effect into the anti-overflow cavity (4), a temperature sensor (6) for detecting the cooking temperature in the cooking cavity and a control device (7) are arranged in the body (1), the control device (7) is electrically connected with the temperature sensor (6) and the fan (5), and the control device (7) can control the fan (5) according to a cooking temperature signal detected by the temperature sensor (6);

the control device (7) is provided with a first preset operation temperature and a second preset operation temperature, and when the cooking temperature detected by the temperature sensor (6) reaches the first preset operation temperature, the control device (7) controls the fan (5) to start to operate from a stop state; when the culinary art temperature that temperature sensor (6) detected reached the preset operating temperature of second, controlling means (7) control fan (5) are followed low amount of wind gear and are converted into the operation of high amount of wind gear, fan (5) are in the operation of high amount of wind gear, supply to the wind current in anti-overflow chamber (4) forms the wind wall, in order with anti-overflow chamber (4) are separated and are had high temperature cavity (8) of steam inlet (2) and have low temperature cavity (9) of steam outlet (3).

2. The cooking utensil cover of claim 1 wherein the first predetermined operating temperature is between 50 ° and 60 °.

3. The cooking utensil cover of claim 2 wherein the first preset operating temperature is 55 °.

4. A cooking utensil cover according to claim 1 wherein the control means (7) is arranged to control the fan (5) to increase the air volume in real time with a real time increase in the cooking temperature detected by the temperature sensor (6).

5. The cooking utensil cover of claim 1 wherein the second predetermined operating temperature is between 95 ° and 100 °.

6. The cooking utensil cover of claim 5 wherein the second preset operating temperature is 98 °.

7. The cooking utensil cover according to claim 1 wherein the spill-proof chamber (4) is provided with air nozzles (10) on the side walls or top wall, wherein the air nozzles (10) and the fan (5) are in communication by an air duct (11).

8. The cooking utensil cover according to any one of claims 1 to 7 wherein the bottom surface of the spill-proof chamber (4) is arranged obliquely downwards towards the steam inlet (2) in the height direction of the cooking utensil cover.

9. The cooking utensil cover according to claim 8 wherein the bottom surface of the steam channel (13) between the steam outlet (3) and the steam discharge opening (12) on the body (1) is arranged obliquely downwards from the steam discharge opening (12) towards the steam outlet (3).

10. A cooking utensil comprising a cooking utensil body (15) with a cooking cavity (14), characterized in that a cooking utensil cover according to any one of claims 1 to 9 is provided on the cooking utensil body (15), wherein,

the steam inlet (2) and the temperature sensor (6) are in direct contact with the cooking cavity (14).

11. A method for preventing overflow of cooking utensils according to claim 10, wherein the method comprises:

detecting the cooking temperature of the cooking cavity through a temperature sensor and sending a cooking temperature signal to a control device;

and the control device receives the cooking temperature signal to control a fan communicated with an anti-overflow cavity in the cooking utensil cover body.