Cooking vessel and cooking appliance employing the same

Abstract

This invention discloses a cooking container, comprising a cylindrical container wall with hollow, protruding heat-conducting ducts on its outer surface. The heat-conducting ducts form several polygonal structures filled with a heat-conducting medium. At least one polygonal structure has a pressure-relief section. The pressure-bearing capacity of the pressure-relief section is lower than that of the other heat-conducting ducts. When the pressure inside the heat-conducting duct exceeds the pressure-bearing capacity of the pressure-relief section, the pressure-relief section is destroyed, releasing pressure. A cooking utensil is also disclosed, comprising a utensil body and a lid. The utensil body has a cavity containing the aforementioned cooking container. This invention solves the problem of heat-conducting duct walls rupturing into splattering fragments under pressure. When the pressure-relief section breaks, a rupture point is formed instead of localized fragments, reducing damage to the utensil body and other components, and improving user safety.

Description

[Technical Field]

[0001] This invention relates to the field of kitchen appliances, and more particularly to cooking containers and cooking utensils using the cooking containers. [Background Technology]

[0002] With the widespread adoption of high-efficiency heating IH rice cookers, consumers have higher demands for the appearance, materials, and functions of rice cookers. To improve the cooking effect of rice in the inner pot, manufacturers have conducted extensive research on heating methods and inner pot materials; among these, inner pots using uniform heating technology have emerged to improve the evenness of heating.

[0003] The principle behind the homogeneous heating inner liner is the use of a homogeneous heating plate process. This involves a sandwich layer in the middle of the liner, into which an appropriate amount of heat-conducting liquid is poured. The liner is then evacuated and sealed to create a negative pressure effect inside. When the liner is heated, the negative pressure inside allows water to boil and vaporize at a very low temperature, absorbing a large amount of heat. Simultaneously, the vaporized water vapor rapidly carries the heat to the cooler areas of the inner liner, instantly dispersing the heat energy to all parts of the inner liner.

[0004] Some heat-spreading inner liner (made of aluminum) adopts an inflatable plate structure, which is two layers of composite aluminum sheets with graphite tubes screen-printed between the layers. Because of the presence of graphite, the printed tubes do not stick together during high-temperature bonding. Then, through pressure inflation, the unbonded parts shrink and arch up to form a hollow vascular tube structure.

[0005] Under negative pressure inside the heat transfer tube, the heat transfer fluid rapidly vaporizes and collides. The higher the temperature, the higher the internal pressure of the heat transfer tube, and the greater the internal pressure it bears. Because this heat transfer tube has an arched structure (close to a circular arc), its stress is evenly distributed, unlike the traditional flat-plate heat spreader which has a cantilever structure. Therefore, the heat transfer tube can withstand higher steam pressure, and its structure can be used for higher temperature heating. Its pressure relief value is significantly higher than that of a traditional heat spreader. However, if the rice cooker's temperature protection fails to control, the temperature continues to rise, and the pressure inside the pipe exceeds the pipe's tensile strength, causing the pipe wall to expand rapidly. Although the entire system is under uniform pressure, when the pipe wall eventually breaks and releases pressure, localized block-shaped pipe wall ruptures may occur.

[0006] Because the ultimate pressure that breaks through the pipe wall is very high at this time, when the pipe wall ruptures, the high-pressure steam may impact the already ruptured pipe wall fragments, causing fragments to fly and damage other parts of the rice cooker, which is dangerous. [Summary of the Invention]

[0007] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and to propose a cooking container that prevents the heat-conducting duct wall from rupturing into splashing fragments under pressure, and a cooking utensil using the cooking container.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0009] A cooking container includes a cylindrical container wall with hollow, protruding heat-conducting ducts on its outer surface. The heat-conducting ducts form several polygonal structures and are filled with a heat-conducting medium. At least one polygonal structure has a pressure relief section. The pressure-bearing capacity of the pressure relief section is lower than that of the other heat-conducting ducts. When the pressure inside the heat-conducting duct exceeds the pressure-bearing capacity of the pressure relief section, the pressure relief section is destroyed to release pressure.

[0010] In the cooking container described above, at least two heat-conducting tubes intersect at an angle on the polygonal structure to form the pressure relief section, and the other heat-conducting tubes in the polygonal structure are connected with rounded corners.

[0011] In the cooking container described above, the polygonal structure is at least a quadrilateral structure, and the polygonal structure is provided with at least two pressure relief parts, with a rounded corner between adjacent pressure relief parts.

[0012] In the cooking container described above, within the same polygonal structure, the number of pressure relief sections is less than the number of rounded corners.

[0013] In the cooking container described above, the wall thickness of the pressure relief section is less than the wall thickness of the other heat-conducting ducts.

[0014] A cooking utensil includes a utensil body and a lid, wherein the utensil body has a cavity in which the aforementioned cooking container is disposed.

[0015] In the cooking appliance described above, the appliance body is also provided with a pressure relief channel communicating with the cavity. When the cooking container is placed in the cavity, the pressure relief part corresponds to the pressure relief channel.

[0016] In the aforementioned cooking appliances, the pressure relief channel is open at both ends and has built-in sound-dampening components to reduce the noise of the pressure relief fluid.

[0017] In the aforementioned cooking appliance, the silencer is constructed with a tortuous flow path within the pressure relief channel to buffer and reduce noise in the pressure relief fluid.

[0018] In the above-mentioned cooking appliance, the appliance body is provided with a heat preservation cover and a heating plate. The heat preservation cover surrounds the cavity, the heating plate is located at the bottom of the heat preservation cover, the pressure relief part is provided in a polygonal structure on the side of the container wall, and the pressure relief channel penetrates through the side wall of the heat preservation cover.

[0019] Alternatively, the appliance body is provided with an electromagnetic coil and a heat-insulating ring, the heat-insulating ring and the electromagnetic coil forming the cavity, the pressure relief part is provided with a polygonal structure on the side of the container wall, and the pressure relief channel passes through the heat-insulating ring.

[0020] The beneficial effects of this invention are:

[0021] A cooking container includes a cylindrical container wall with hollow, protruding heat-conducting tubes on its outer surface. These heat-conducting tubes form several polygonal structures filled with a heat-conducting medium. At least one polygonal structure has a pressure-relief section. The pressure-bearing capacity of this section is lower than that of the other heat-conducting tubes. When the pressure inside the heat-conducting tube exceeds the pressure-bearing capacity of the pressure-relief section, the section is destroyed, releasing pressure. By providing a pressure-relief section on the polygonal structure formed by the heat-conducting tubes, the problem of heat-conducting tube walls rupturing into flying fragments under pressure is solved. Because the strength of the pressure relief section is lower than that of other heat-conducting pulses, when the pressure inside the heat-conducting pulse exceeds the pressure-bearing capacity of the pressure relief section, the pressure relief section will be ruptured to release pressure. The pressure relief section is located on the polygonal structure formed by the heat-conducting pulses, that is, at the edge of the heat-conducting pulses. When the pressure relief section is damaged, a rupture opening is formed, rather than a local rupture block. High-pressure gas is released from the rupture opening formed by the pressure relief section, avoiding damage to surrounding components during pressure release.

[0022] In a further embodiment, at least two heat-conducting tubes intersect at an angle to form the pressure relief section on the polygonal structure, while the other heat-conducting tubes in the polygonal structure are connected with rounded corners. Positioning the pressure relief section at the intersection of two heat-conducting tubes facilitates stress concentration, making it easier for ruptures to form when the pressure inside the heat-conducting tubes is too high. The rounded corner connections of the other heat-conducting tubes prevent ruptures from forming outside the pressure relief section.

[0023] In a further embodiment, the polygonal structure is at least a quadrilateral structure, and at least two pressure relief sections are provided in the polygonal structure, with a rounded corner between adjacent pressure relief sections. Providing at least two pressure relief sections prevents the failure of a single pressure relief section from causing cracks in the heat-conducting duct wall, further improving the pressure relief safety of the cooking container. The rounded corner between adjacent pressure relief sections prevents the rupture points of two pressure relief sections from connecting during pressure relief, thus preventing localized cracking of the entire outer wall of the container and the formation of cracked blocks.

[0024] In a further embodiment, the number of pressure-relieving sections in the same polygonal structure is less than the number of rounded corners. This reduction in the number of pressure-relieving sections compared to the number of rounded corners ensures that the polygonal structure has sufficient strength to remain connected to the container wall during pressure relief, preventing it from being torn apart into fragments by the pressure generated by the simultaneous rupture of the pressure-relieving sections.

[0025] In a further embodiment, the wall thickness of the pressure relief section is less than that of the other heat-conducting pulses. The thinner wall thickness of the pressure relief section means it can withstand less pressure compared to other heat-conducting pulses, making it more likely to rupture and release pressure when the pressure inside the heat-conducting pulses becomes too high.

[0026] A cooking utensil includes a utensil body and a lid. The utensil body has a cavity in which the aforementioned cooking container is placed. When a cooking utensil using this cooking container malfunctions during cooking, excessive pressure in the heat-conducting pulse tubes of the cooking container will be released directly from the pressure relief section of the cooking container, preventing rupture and reducing damage to the utensil body and other components, thus improving user safety.

[0027] In a further embodiment, the appliance body is also provided with a pressure relief channel communicating with the cavity. When the cooking container is placed in the cavity, the pressure relief part corresponds to the pressure relief channel. By providing a pressure relief channel on the appliance body, a safe path is planned to allow the pressure in the heat-conducting pulse tube to be released through the pressure relief channel in the event of a rupture in the pressure relief part, thus preventing the pressure in the heat-conducting pulse tube from damaging other components within the appliance body.

[0028] In a further embodiment, the pressure relief channel is open at both ends and has built-in silencing components to reduce the noise of the pressure relief fluid. Because the internal pressure of the heat-conducting pulsator is high after heating, a strong airflow is generated during pressure relief. This airflow generates significant noise as it flows through the pressure relief channel. Installing silencing components within the pressure relief channel effectively reduces the noise of the pressure relief fluid, preventing it from startling users.

[0029] In a further embodiment, the silencer component constructs a tortuous flow path within the pressure relief channel to buffer and reduce noise in the pressure relief fluid. By setting a tortuous flow path, the velocity of the pressure relief fluid is reduced, and its energy is absorbed, thus buffering the pressure relief fluid and achieving the purpose of noise reduction.

[0030] In a further embodiment, the appliance body is provided with a heat insulation cover and a heating plate. The heat insulation cover forms the cavity, and the heating plate is located at the bottom of the heat insulation cover. The pressure relief part is a polygonal structure located on the side of the container wall, and the pressure relief channel penetrates through the side wall of the heat insulation cover. Alternatively, the appliance body is provided with an electromagnetic coil and a heat insulation ring. The heat insulation ring, together with the electromagnetic coil, forms the cavity. The pressure relief part is a polygonal structure located on the side of the container wall, and the pressure relief channel penetrates through the heat insulation ring. Placing the pressure relief part on the side of the container wall reduces the impact on the heating plate or electromagnetic coil and does not significantly alter the existing appliance body structure, making full use of the space on the side of the existing appliance body to create the pressure relief channel.

[0031] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. [Attached Image Description]

[0032] The invention will be further described below with reference to the accompanying drawings:

[0033] Figure 1 This is a schematic diagram of the structure of the cooking container of the present invention;

[0034] Figure 2 This is a schematic diagram of a single polygonal structure inside the cooking container of the present invention;

[0035] Figure 3 This is a cross-sectional view of the cooking container of the present invention;

[0036] Figure 4 This is a cross-sectional view of the cooking appliance of the present invention;

[0037] Figure 5 This is a perspective view of the pressure relief channel in the cooking appliance of the present invention;

[0038] Figure 6 This is a cross-sectional view of the pressure relief channel in the cooking appliance of the present invention.

[0039] Figure label:

[0040] Cooking container 100, container wall 110, heat conduction duct 120, polygonal structure 130, pressure relief part 140, rounded corner 150;

[0041] Appliance body 200, pressure relief channel 210, silencer 211, flow channel 212, pressure relief port 213, air outlet 214, electromagnetic coil 220, heat preservation ring 230;

[0042] Cover 300.

Detailed Implementation Methods

[0043] A cooking container includes a cylindrical container wall with hollow, protruding heat-conducting tubes on its outer surface. These heat-conducting tubes form several polygonal structures filled with a heat-conducting medium. At least one polygonal structure has a pressure-relief section. The pressure-bearing capacity of this section is lower than that of the other heat-conducting tubes. When the pressure inside the heat-conducting tube exceeds the pressure-bearing capacity of the pressure-relief section, the section is destroyed, releasing pressure. By providing a pressure-relief section on the polygonal structure formed by the heat-conducting tubes, the problem of heat-conducting tube walls rupturing into flying fragments under pressure is solved. Because the strength of the pressure relief section is lower than that of other heat-conducting pulses, when the pressure inside the heat-conducting pulse exceeds the pressure-bearing capacity of the pressure relief section, the pressure relief section will be ruptured to release pressure. The pressure relief section is located on the polygonal structure formed by the heat-conducting pulses, that is, at the edge of the heat-conducting pulses. When the pressure relief section is damaged, a rupture opening is formed, rather than a local rupture block. High-pressure gas is released from the rupture opening formed by the pressure relief section, avoiding damage to surrounding components during pressure release.

[0044] A cooking utensil includes a utensil body and a lid. The utensil body has a cavity in which the aforementioned cooking container is placed. When a cooking utensil using this cooking container malfunctions during cooking, excessive pressure in the heat-conducting pulse tubes of the cooking container will be released directly from the pressure relief section of the cooking container, preventing rupture and reducing damage to the utensil body and other components, thus improving user safety.

[0045] The technical solutions of the embodiments of the present invention will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present invention.

[0046] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more, unless explicitly defined otherwise.

[0048] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0049] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0050] Example 1

[0051] like Figure 1 , Figure 2 , Figure 3 As shown, the cooking container 100 includes a cylindrical container wall 110. The container wall 110 has hollow heat-conducting pulsators 120 protruding from its outer surface. The container wall 110 consists of an inner wall and an outer wall. A portion of the outer wall arches outward to form the heat-conducting pulsators 120 between it and the inner wall. The heat-conducting pulsators 120 form several polygonal structures 130. In this embodiment, the polygons formed by the heat-conducting pulsators 120 are all hexagonal. The heat-conducting pulsators 120 are filled with a heat-conducting medium. A pressure relief section 140 is provided on at least one of the polygonal structures 130. The pressure-bearing strength of the pressure relief section 140 is lower than that of the other heat-conducting pulsators 120. When the pressure inside the heat-conducting pulsators 120 exceeds the pressure-bearing strength of the pressure relief section 140, the pressure relief section 140 is destroyed to release pressure. Since the pressure relief section 140 is located on one of the polygonal structures 130, and the polygonal structure 130 is located at the edge of the heat conduction pulse tube 120, when the pressure relief section 140 is broken by the pressure inside the heat conduction pulse tube 120, a rupture will be formed instead of a ruptured piece. In this way, no fragments will be ejected during pressure relief, thereby avoiding damage to surrounding objects or people.

[0052] To ensure that the strength of the pressure relief section 140 is lower than the pressure-bearing strength of the other heat-conducting pulses 120, the pressure relief section 140 can be positioned at the corner formed by the intersection of at least two heat-conducting pulses 120 on the polygonal structure 130. Due to the angle, the stress at this position will be more concentrated, and when the pressure inside the heat-conducting pulse 120 is too high, this position will be the first to be damaged, thus forming the pressure relief section 140. The other heat-conducting pulses 120 of the polygon are connected with rounded corners 150 to increase the strength at the intersection of the other heat-conducting pulses 120, thereby fixing the position of the pressure relief section 140.

[0053] Furthermore, at least two pressure relief sections 140 can be provided in the polygonal structure 130. If one pressure relief section 140 fails, the other pressure relief section 140 can serve as a backup. Of course, there is also a situation where two pressure relief sections 140 are working at the same time. If the two pressure relief sections 140 are the corners of two adjacent polygons, the edge of the polygon may detach when the two pressure relief sections 140 are working at the same time, resulting in fragments. Therefore, in order to avoid this situation, there must be at least one rounded corner 150 between adjacent pressure relief sections 140 to prevent the pressure relief ports formed by the two pressure relief sections 140 from connecting.

[0054] Since the edges of the polygonal structure 130 are connected to form a closed loop, under the condition of satisfying the above-mentioned pressure relief part 140, in order to avoid the outer wall of the polygon being torn into fragments as much as possible, the number of pressure relief parts 140 in the same polygonal structure 130 is less than the number of rounded corners 150.

[0055] like Figure 4 , Figure 5 As shown, the present invention also discloses a cooking utensil, including an utensil body 200 and a lid 300. The utensil body 200 has a cavity, and the cooking container 100 is placed in the cavity. During cooking, if the cooking container 100 needs to be depressurized, it will not break, thus avoiding damage to the cooking utensil. During cooking, the lid 300 covers the cooking container 100, and the cavity and lid 300 together form a sealed or relatively enclosed space. If the cooking container 100 is depressurized at this time, the pressure inside the cavity will become too high, causing damage to the utensil body 200 or the lid 300. Therefore, the utensil body 200 is provided with a pressure relief channel 210 communicating with the cavity. When the cooking container 100 is placed in the cavity, the pressure relief part 140 corresponds to the pressure relief channel 210, so that the high-pressure gas released during pressure relief by the pressure relief part 140 can be discharged from the cavity through the pressure relief channel 210. To ensure that the pressure relief part 140 is aligned with the pressure relief channel 210 after the cooking container 100 is placed into the cavity, an indicator component can be made on the cooking container 100, such as a hanging ear on the cooking container 100 and a groove for accommodating the hanging ear on the utensil body 200. The lid 300 can only be closed when the hanging ear is placed into the groove. The hanging ear can also make it convenient to pick up and remove the cooking utensil under normal circumstances.

[0056] like Figure 6As shown, when pressure is released in the pressure relief section 140, excessive pressure will generate significant fluid noise, disturbing the user. Therefore, a silencer 211 is installed in the pressure relief channel 210 to absorb the energy of the high-pressure airflow and reduce noise. Specifically, a tortuous flow channel 212 can be provided in the pressure relief channel 210 to form the silencer 211. Because the flow channel 212 is tortuous, most of the energy of the high-pressure airflow is lost when it flows through it. Furthermore, the flow channel 212 can be made of a soft material, which can further improve the noise reduction effect. The end of the pressure relief channel 210 near its cooking container 100 is the pressure relief port 213. The pressure relief port 213 can be made as large as possible to better collect the high-pressure airflow released from the pressure relief section 140. The other end of the pressure relief channel 210 is the air outlet 214, which can be directly connected to the outside or to an open area provided inside the appliance body 200.

[0057] like Figure 4 As shown, the appliance body 200 is equipped with a heat preservation cover and a heating plate. The heat preservation cover forms a cavity, and the heating plate is located at the bottom of the heat preservation cover. The heating plate heats the bottom of the cooking container 100, and then the heat is transferred to the container wall 110 of the cooking container 100 through the heat conduction pulse tube 120 to heat the food inside the cooking container 100. The pressure relief part 140 is located on the polygonal structure 130 on the side of the container wall 110, and the corresponding pressure relief channel 210 penetrates through the side wall of the heat preservation cover. The reason for placing the pressure relief part 140 on the side wall of the container wall 110 is that there is a heating plate at the bottom of the cavity, making it inconvenient to set up a pressure relief channel 210. Generally, the side wall of the cooking container 100 has relatively extra space to set up a pressure relief channel 210, so the existing component layout inside the cooking container 100 does not need to be significantly modified.

[0058] Alternatively, the appliance body 200 may be equipped with an electromagnetic coil 220 and a heat-insulating ring 230. The heat-insulating ring 230, together with the electromagnetic coil 220, forms a cavity, which, relative to the heating plate, can expand the heating area of ​​the cooking container 100, while simultaneously heating the bottom and side walls of the cooking container 100. Similarly, a pressure relief part 140 is provided on the polygonal structure 130 on the side of the container wall 110, and a pressure relief channel 210 passes through the heat-insulating ring 230, preventing the pressure relief channel 210 from affecting the layout of the electromagnetic coil 220.

[0059] Example 2

[0060] The difference from Embodiment 1 is that the pressure relief part 140 is not located at the corner formed by the rubber of the two heat-conducting pulsators 120 on the polygonal structure 130, but at any position on the polygonal structure 130. The wall thickness at this position is less than the wall thickness of the other heat-conducting pulsators 120. Due to the thinner wall thickness, the pressure that the pressure relief part 140 can withstand is relatively low. When the pressure inside the heat-conducting pulsator 120 is too high, the pressure relief port will be torn out from the pressure relief part 140 first to relieve the pressure. Of course, it is necessary to control the size of the thinner wall position to avoid tearing the entire polygon into fragments that could cause damage to other parts or personnel.

[0061] The above solution can also be combined with the solution of the pressure relief section 140 in one embodiment. That is, the pressure relief section 140 is set at the position where the two heat conduction pulses 120 intersect at an angle. At the same time, the wall thickness of the heat conduction pulse 120 at this angle is smaller than the wall thickness of the heat conduction pulses 120 in other parts, so as to ensure that when the pressure inside the heat conduction pulse 120 is too high, the pressure can be relieved from the pressure relief section 140.

[0062] Other content not described in this embodiment can be found in Embodiment 1.

[0063] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of the present invention will be included within the scope of the claims.

Claims

1. A cooking container, comprising a cylindrical container wall having hollow, heat-conducting ducts protruding from its outer surface, the heat-conducting ducts forming a plurality of polygonal structures and filled with a heat-conducting medium, characterized in that, At least one of the polygonal structures is provided with a pressure relief section. The pressure-bearing strength of the pressure relief section is lower than that of the other heat-conducting tubes. When the pressure inside the heat-conducting tube exceeds the pressure-bearing strength of the pressure relief section, the pressure relief section is destroyed and pressure is released. At least two heat-conducting tubes intersect at an angle to form the pressure relief section on the polygonal structure. The other heat-conducting tubes in the polygonal structure are connected with rounded corners. At least two pressure relief sections are provided in the polygonal structure, and there is at least one rounded corner between adjacent pressure relief sections.

2. The cooking container as described in claim 1, characterized in that, The polygonal structure is at least a quadrilateral structure, with a rounded corner between adjacent pressure relief sections.

3. The cooking container as described in claim 2, characterized in that, In the same polygonal structure, the number of pressure relief sections is less than the number of rounded corners.

4. The cooking container as described in claim 1, characterized in that, The wall thickness of the pressure relief section is less than that of the other heat-conducting ducts.

5. A cooking utensil, comprising a utensil body and a lid, wherein the utensil body has a cavity, characterized in that, The cavity is provided with a cooking container as described in any one of claims 1 to 4.

6. The cooking appliance as described in claim 5, characterized in that, The appliance body is also provided with a pressure relief channel communicating with the cavity. When the cooking container is placed in the cavity, the pressure relief part corresponds to the pressure relief channel.

7. The cooking utensil as described in claim 6, characterized in that, The pressure relief channel is open at both ends and has built-in sound-absorbing components to reduce the noise of the pressure relief fluid.

8. The cooking appliance as described in claim 7, characterized in that, The silencing component constructs a tortuous flow path within the pressure relief channel to buffer and reduce noise in the pressure relief fluid.

9. The cooking utensil as described in claim 6, characterized in that, The appliance body is provided with a heat insulation cover and a heating plate. The heat insulation cover forms the cavity. The heating plate is located at the bottom of the heat insulation cover. The pressure relief part is a polygonal structure located on the side of the container wall. The pressure relief channel penetrates the side wall of the heat insulation cover. Alternatively, the appliance body is provided with an electromagnetic coil and a heat-insulating ring, the heat-insulating ring and the electromagnetic coil forming the cavity, the pressure relief part is provided with a polygonal structure on the side of the container wall, and the pressure relief channel passes through the heat-insulating ring.

Images