CN109744863B

CN109744863B - Cooking utensil

Info

Publication number: CN109744863B
Application number: CN201711092848.1A
Authority: CN
Inventors: 罗绍生; 苏畅; 蒙剑友; 王帅; 曹达华
Original assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Priority date: 2017-11-08
Filing date: 2017-11-08
Publication date: 2021-12-21
Anticipated expiration: 2037-11-08
Also published as: CN114052482A; CN109744863A

Abstract

The invention provides a cooking appliance, which comprises a shell, an outer pot and an upper cover, wherein the shell is a cavity with an opening at the upper end, the outer pot is arranged in the cavity, the upper cover covers the opening end of the cavity, and the cooking appliance also comprises: the inner pot can be arranged in the outer pot; the coil disc assembly is arranged on the inner pot or the base plate of the outer pot; the wireless power supply device is arranged on the shell or the inner pot; wherein, the pot in wireless power supply unit and coil panel subassembly heat with mutual inductance's mode. The inner pot is heated in a mutual inductance mode through the wireless power supply device and the coil panel assembly; further, the structure setting of coil disc subassembly makes cooking utensil accomplish lighter, thinner, has reduced manufacturing cost, simultaneously, has reduced cooking utensil's whole overall dimension, has guaranteed the thermally equivalent of interior pot, has improved the heating efficiency of product. Simultaneously, cooking utensil's structural setting can avoid coil panel subassembly thermal concentration to the temperature rise of coil panel subassembly has been reduced.

Description

Cooking utensil

Technical Field

The invention relates to the field of household appliances, in particular to a cooking appliance.

Background

The electric pressure cooker is taken as an electric heating product, and is loved by consumers due to the advantages of rapidness, tasty performance and the like. With the development of technology, in order to make the heating uniformity of the electric pressure cooker better and the heating firepower finer, the electric pressure cooker also gradually uses an electromagnetic heating platform. The electromagnetic heating platform brings uniform and fine firepower to the electric pressure cooker and also brings the problem of heat dissipation of the coil panel. Meanwhile, in order to improve the uniformity, the winding of the coil panel of the electromagnetic heating platform tends to be multilayered, and the magnetic strip of the electromagnetic heating platform tends to be placed in a three-dimensional manner, so that the thickness of the electromagnetic heating platform is thicker and thicker, and the light and thin design of a product is influenced.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art or the related art.

To this end, a first aspect of the invention proposes a cooking appliance.

In view of this, a first aspect of the present invention provides a cooking appliance, the cooking appliance includes a casing, an outer pot and an upper cover, the casing is a cavity with an upper end opened, the outer pot is disposed in the cavity, the upper cover covers the open end of the cavity, the cooking appliance further includes: the inner pot can be arranged in the outer pot; the coil disc assembly is arranged on the inner pot or the base plate of the outer pot; the wireless power supply device is arranged on the shell or the inner pot; wherein, the pot in wireless power supply unit and coil panel subassembly heat with mutual inductance's mode.

The invention provides a cooking appliance comprising: interior pot, coil panel subassembly and wireless power supply unit. When the inner pot is arranged in the outer pot and the cooking utensil works, the wireless power supply device and the coil panel assembly heat the inner pot in a mutual inductance mode; furthermore, the coil disc assembly is arranged on the inner pot or the base plate of the outer pot, so that the cooking appliance can be lighter and thinner, the production cost is reduced, meanwhile, the occupancy rate of the inner space of the cooking appliance is reduced, the overall appearance size of the cooking appliance is reduced, and the use performance and the user experience of the product are improved; further, the coil disc assembly is arranged on the inner pot or the base plate of the outer pot, so that heat generated by the cooking appliance during working can directly act on the inner pot in the first time and in a large area, uniform heating of the inner pot is guaranteed, heat loss is reduced, heating efficiency of products is improved, meanwhile, heat concentration of the coil disc assembly can be avoided due to the structural arrangement, temperature rise of the coil disc assembly is reduced, and use safety of the cooking appliance is guaranteed.

According to the cooking utensil of the invention, the following additional technical characteristics can be provided:

in the above technical solution, preferably, when the coil disc assembly is disposed on the substrate of the outer pot, at least one first pressure-bearing device is disposed on the substrate, and the at least one first pressure-bearing device and the coil disc assembly are respectively disposed on two opposite end faces of the substrate; wherein the fastener passes through the at least one first pressure-bearing device to assemble the at least one first pressure-bearing device on the outer pot or the shell.

In this technical scheme, when the coil panel subassembly sets up on the base plate of outer pot, through set up at least one first pressure-bearing device on the base plate, make the fastener pass at least one first pressure-bearing device and assemble at least one first pressure-bearing device on outer pot or casing, when cooking utensil during operation, its inside pressure rises, interior pot can extrude at least one first pressure-bearing device of base plate downwards because of the effect of pressure, and then the clearance between pot and the upper cover in the increase, make the leakproofness between the two reduce, and then carry out the pressure release through this clearance, in order to ensure that cooking utensil's operating pressure is in reasonable safe within range. This structure setting makes cooking utensil possible lighter, thinner, has reduced manufacturing cost, simultaneously, has reduced the occupancy to cooking utensil inner space, has reduced cooking utensil's whole overall dimension, has promoted the performance and the user experience of product.

In any of the above technical solutions, preferably, an area of an end surface of the at least one first pressure-containing device facing the end of the inner pan is greater than or equal to 3% of an area of an outer bottom wall of the inner pan.

In this technical scheme, through the terminal surface area that sets up the one end of pot in the reasonable at least one pressure-bearing device orientation, make 3% of its outer bottom wall area of pot in more than or equal to, avoid leading to interior pot and at least one pressure-bearing device contact segment local pressure too big because of terminal surface area is less than 3% of interior pot outer bottom wall area, and then cause the condition of interior pot deformation to take place.

In any of the above technical solutions, preferably, the at least one first pressure-bearing device includes any one or a combination of the following: at least one ceramic pressure-bearing device, at least one high-temperature-resistant plastic pressure-bearing device and at least one aluminum pressure-bearing device.

In this solution, the at least one first pressure-bearing device comprises any one or a combination of the following: at least one ceramic pressure-bearing device, at least one high temperature resistant plastic pressure-bearing device and at least one aluminum pressure-bearing device, thereby reducing the heat of the coil panel assembly transferred to the outer pot by the at least one first pressure-bearing device and reducing the temperature rise of the outer pot and the shell.

In any of the above technical solutions, preferably, when the coil disc assembly is disposed on the inner pot, the air valve is disposed on the upper cover, and the air valve is communicated with the inner pot.

In this technical scheme, when coil disc subassembly setting was on interior pot, the upper cover was airtight together with interior pot lock, when cooking utensil during operation, carries out the pressure release control through the pneumatic valve that links to each other with interior pot to ensure that cooking utensil's operating pressure is in reasonable safe within range. The structure ensures the use safety of the cooking utensil, has simple processing technology, low production cost and convenient mass production, and simultaneously, the structure ensures that the cooking utensil can be lighter and thinner, reduces the production cost, reduces the occupancy rate of the inner space of the cooking utensil, reduces the overall dimension of the cooking utensil, and promotes the use performance and the user experience of the product.

In any of the above technical solutions, preferably, when the coil disc assembly is disposed on the inner pan, the at least one second pressure-bearing device is located below the coil disc assembly, and the disposition position of the at least one second pressure-bearing device includes any of: the outer bottom wall of the inner pot, the shell and the outer pot.

In this technical scheme, through the setting position of reasonable at least one second pressure-bearing device that sets up, make it include following arbitrary department: on the outer diapire of interior pot, on the casing and on the outer pot, rational utilization cooking utensil's inner space for cooking utensil during operation, its inside pressure rises, and interior pot can extrude at least one second pressure-bearing device downwards owing to the effect of pressure, and then the clearance between pot and the upper cover in the increase makes the leakproofness between the two reduce, and then carries out the pressure release through this clearance, is in reasonable safe within range with the operating pressure who ensures cooking utensil. The structure ensures the use safety of the cooking utensil, and has the advantages of simple processing technology, low production cost and convenient mass production.

In any of the above technical solutions, preferably, a contact area of the at least one second pressure-containing device with the inner pan is greater than or equal to 3% of an area of an outer bottom wall of the inner pan.

In this technical scheme, through the area of contact of reasonable setting at least one second pressure-containing device with interior pot, make its 3% of outer bottom wall area of pot in more than or equal to, avoid being less than 3% of inner pot outer bottom wall area because of area of contact, and lead to interior pot and at least one second pressure-containing device contact segment local pressure too big, and then cause the condition of interior pot deformation to take place.

In any of the above technical solutions, preferably, the at least one second pressure-bearing device includes any one or a combination of the following: at least one ceramic pressure-bearing device, at least one high-temperature-resistant plastic pressure-bearing device and at least one aluminum pressure-bearing device.

In this technical solution, the at least one second pressure-bearing device includes any one of or a combination of the following: at least one ceramic pressure-bearing device, at least one high-temperature-resistant plastic pressure-bearing device and at least one aluminum pressure-bearing device, so that the heat of the coil panel assembly transferred to the outer pot from the at least one second pressure-bearing device is reduced, and the temperature rise of the outer pot and the shell is reduced.

In any one of the above technical solutions, preferably, the coil disk assembly includes: the coil layer and the soft magnetic layer, the soft magnetic layer sets up the outside at the coil layer.

In any of the above technical solutions, preferably, the cooking appliance is an electric pressure cooker.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 shows a sectional view of a cooking appliance of a first embodiment of the present invention;

fig. 2 shows a sectional view of a cooking appliance of a second embodiment of the present invention;

fig. 3 shows a sectional view of a cooking appliance of a third embodiment of the present invention;

fig. 4 shows a schematic structural view of an inner pan and a second pressure containing device of a third embodiment of the present invention;

fig. 5 shows a sectional view of a cooking appliance of a fourth embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 5 is:

1 cooking utensil, 10 shells, 20 outer pots, 202 base plates, 30 upper covers, 40 inner pots, 50 coil disc assemblies, 60 wireless power supply devices, 70 first pressure-bearing devices and 80 second pressure-bearing devices.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

The cooking appliance 1 according to some embodiments of the present invention is described below with reference to fig. 1 to 5.

As shown in fig. 1 to 5, an embodiment of the first aspect of the present invention provides a cooking appliance 1, where the cooking appliance 1 includes a housing 10, an outer pot 20, and an upper cover 30, the housing 10 is a cavity with an open upper end, the outer pot 20 is disposed in the cavity, the upper cover 30 covers the open end of the cavity, and the cooking appliance 1 further includes: an inner pot 40 which can be arranged in the outer pot 20; a coil disc assembly 50 disposed on the inner pot 40 or on the base plate 202 of the outer pot 20; a wireless power supply device 60 arranged on the shell 10 or the inner pot 40; wherein, the wireless power supply device 60 and the coil disc assembly 50 heat the inner pot 40 in a mutual inductance manner.

The present invention provides a cooking appliance 1 comprising: inner pot 40, coil panel assembly 50 and wireless power supply 60. By arranging the coil disc assembly 50 on the inner pan 40 or on the base plate 202 of the outer pan 20, when the inner pan 40 is placed in the outer pan 20 and the cooking appliance 1 is operated, the wireless power supply device 60 and the coil disc assembly 50 heat the inner pan 40 in a mutual inductance manner; further, the coil panel assembly 50 is arranged on the inner pot 40 or the substrate 202 of the outer pot 20, so that the cooking appliance 1 can be lighter and thinner, the production cost is reduced, meanwhile, the occupancy rate of the inner space of the cooking appliance 1 is reduced, the overall dimension of the cooking appliance 1 is reduced, and the use performance and the user experience of the product are improved; further, coil panel assembly 50 sets up on interior pot 40 or set up on outer pot 20's base plate 202 for the heat that cooking utensil 1 during operation produced can be very first time, large area ground direct action on interior pot 40, the thermally equivalent of interior pot 40 has been guaranteed, and then thermal loss has been reduced, the heating efficiency of product has been improved, and simultaneously, the thermal concentration of coil panel assembly 50 can be avoided in this structural arrangement, thereby the temperature rise of coil panel assembly 50 has been reduced, the security that cooking utensil 1 used has been guaranteed.

In one embodiment of the present invention, preferably, as shown in fig. 1, when the coil disc assembly 50 is disposed on the base plate 202 of the outer pot 20, at least one first pressure-bearing device 70 is disposed on the base plate 202, and at least one first pressure-bearing device 70 and the coil disc assembly 50 are disposed on two opposite end surfaces of the base plate 202, respectively; wherein the fastening member passes through the at least one first bearing device 70 to assemble the at least one first bearing device 70 on the outer pot 20 or the housing 10.

In a specific embodiment, the base plate 202 and the at least one first pressure-bearing device 70 are of a split structure, the at least one first pressure-bearing device 70 is connected to the base plate 202 through a first screw, when the coil disc assembly 50 is disposed on the base plate 202 of the outer pot 20, a second screw penetrates through the at least one first pressure-bearing device 70 to mount the at least one first pressure-bearing device 70 on the outer pot 20 or on the housing 10, when the cooking appliance 1 works, the pressure inside the cooking appliance rises, the inner pot 40 presses the at least one first pressure-bearing device 70 of the base plate 202 downwards due to the pressure, so that a gap between the inner pot 40 and the upper cover 30 is increased, the sealing performance between the inner pot and the upper cover is reduced, and pressure relief is performed through the gap, so as to ensure that the working pressure of the cooking appliance 1 is within a reasonable and safe range. This structure setting makes cooking utensil 1 can do lighter, thinner, has reduced manufacturing cost, simultaneously, has reduced the occupancy to 1 inner space of cooking utensil, has reduced cooking utensil 1's whole overall dimension, has promoted the performance and the user experience of product.

In an embodiment, the at least one first pressure-bearing device 70 is of an integral structure with the base plate 202, and when the coil disc assembly 50 is disposed on the base plate 202 of the outer pan 20, a screw passes through the at least one first pressure-bearing device 70 to mount the at least one first pressure-bearing device 70 on the outer pan 20 or the housing 10. The at least one first pressure-bearing device 70 and the substrate 202 are formed by injection molding integrally, and the structure is compact, stable and reliable, occupies a small space area, and is convenient to assemble and subsequently replace.

In one embodiment of the present invention, it is preferable that an area of an end surface of the at least one first pressure containing device 70 facing the end of the inner pot 40 is equal to or greater than 3% of an area of an outer bottom wall of the inner pot 40.

In this embodiment, the area of the end surface of the end of the at least one first pressure-containing device 70 facing the inner pan 40 is set reasonably, so that the area is greater than or equal to 3% of the area of the outer bottom wall of the inner pan 40, and the situation that the inner pan 40 deforms due to the fact that the local pressure of the contact part of the inner pan 40 and the at least one first pressure-containing device 70 is too large because the area of the end surface is less than 3% of the area of the outer bottom wall of the inner pan 40 is avoided.

In one embodiment of the present invention, preferably, the at least one first bearing device 70 comprises any one or a combination of the following: at least one ceramic pressure-bearing device, at least one high-temperature-resistant plastic pressure-bearing device and at least one aluminum pressure-bearing device.

In this embodiment, the at least one first bearing device 70 comprises any one or a combination of: at least one ceramic pressure-bearing device, at least one high-temperature-resistant plastic pressure-bearing device and at least one aluminum pressure-bearing device, so that the heat of the coil disc assembly 50 transferred to the outer pot 20 from the at least one first pressure-bearing device 70 is reduced, and the temperature rise of the outer pot 20 and the shell 10 is reduced.

In one embodiment of the present invention, preferably, when the coil disc assembly 50 is disposed on the inner pot 40, the air valve is disposed on the upper cover 30, and the air valve communicates with the inner pot 40.

In this embodiment, when the coil panel assembly 50 is disposed on the inner pan 40, the upper cover 30 is fastened and sealed with the inner pan 40, and when the cooking appliance 1 is in operation, the pressure relief control is performed through the air valve connected to the inner pan 40 to ensure that the operating pressure of the cooking appliance 1 is within a reasonably safe range. The structure ensures the use safety of the cooking appliance 1, the processing technology is simple, the production cost is low, the mass production is convenient, meanwhile, the structure enables the cooking appliance 1 to be lighter and thinner, the production cost is reduced, the occupancy rate of the inner space of the cooking appliance 1 is reduced, the overall shape size of the cooking appliance 1 is reduced, and the use performance and the user experience of the product are improved.

In one embodiment of the present invention, preferably, as shown in fig. 2 to 4, when the coil disc assembly 50 is disposed on the inner pan 40, the at least one second bearing device 80 is located below the coil disc assembly 50, and the at least one second bearing device 80 is disposed at any one of the following positions: the outer bottom wall of the inner pot 40, the shell 10 and the outer pot 20.

In this embodiment, the arrangement position of the at least one second pressure-bearing device 80 is properly arranged, so that any one of the following positions is included: on the outer diapire of interior pot 40, on the casing 10 and on outer pot 20, the inner space of rational utilization cooking utensil 1 for cooking utensil 1 during operation, its inside pressure rises, interior pot 40 can extrude at least one second pressure-bearing device 80 downwards owing to the effect of pressure, and then the clearance between pot 40 and the upper cover 30 in the increase, make the leakproofness between the two reduce, and then carry out the pressure release through this clearance, in order to ensure that cooking utensil 1's operating pressure is in reasonable safe within range. The structure ensures the use safety of the cooking appliance 1, the processing technology is simple, the production cost is low, the mass production is convenient, meanwhile, the structure enables the cooking appliance 1 to be lighter and thinner, the production cost is reduced, the occupancy rate of the inner space of the cooking appliance 1 is reduced, the overall shape size of the cooking appliance 1 is reduced, and the use performance and the user experience of the product are improved.

In one embodiment of the present invention, it is preferable that the contact area of the at least one second pressure containing device 80 with the inner pan 40 is equal to or greater than 3% of the area of the outer bottom wall of the inner pan 40.

In this embodiment, the contact area between the at least one second pressure-containing device 80 and the inner pan 40 is reasonably set to be greater than or equal to 3% of the outer bottom wall area of the inner pan 40, so as to avoid the occurrence of the situation that the inner pan 40 deforms due to the fact that the local pressure of the contact part between the inner pan 40 and the at least one second pressure-containing device 80 is too large because the contact area is smaller than 3% of the outer bottom wall area of the inner pan 40.

In one embodiment of the present invention, preferably, the at least one second bearing device 80 comprises any one or a combination of the following: at least one ceramic pressure-bearing device, at least one high-temperature-resistant plastic pressure-bearing device and at least one aluminum pressure-bearing device.

In this embodiment, the at least one first bearing device 70 comprises any one or a combination of: at least one ceramic pressure-bearing device, at least one high-temperature-resistant plastic pressure-bearing device and at least one aluminum pressure-bearing device, so that the heat of the coil disc assembly 50 transferred to the outer pot 20 from the at least one second pressure-bearing device 80 is reduced, and the temperature rise of the outer pot 20 and the shell 10 is reduced.

In one embodiment of the present invention, it is preferable that the coil disk assembly 50 includes: the coil layer and the soft magnetic layer, the soft magnetic layer sets up the outside at the coil layer.

In one embodiment of the present invention, preferably, the cooking appliance 1 is an electric pressure cooker.

In a specific embodiment, as shown in fig. 1, the coil disc assembly 50 is disposed on the base plate 202, at least one first pressure-bearing device 70 is disposed on the base plate 202, the at least one first pressure-bearing device 70 and the coil disc assembly 50 are disposed on two opposite end surfaces of the base plate 202, respectively, and the fastening member passes through the at least one first pressure-bearing device 70 to assemble the at least one first pressure-bearing device 70 on the outer pot 20. Of course, the substrate 202 may be fixed to the housing 10. The first pressure bearing device 70 may be a non-magnetic metal member, such as aluminum, and the first pressure bearing device 70 may also be a non-metal member, such as ceramic or high temperature plastic. The number of the at least one first pressure containing means 70 may be one, two, three, etc., but the uniform support of the bottom of the inner pan 40 is ensured regardless of the number of the at least one first pressure containing means 70. The area of the end surface of the end of the at least one first pressure-bearing device 70 facing the inner pan 40 is greater than or equal to 3% of the area of the outer bottom wall of the inner pan 40, the pressure-bearing strength of the first pressure-bearing device 70 is not lower than 420kpa, and if the pressure-bearing area is too small, the local pressure of the contact part of the inner pan 40 and the at least one first pressure-bearing device 70 is too large, so that the inner pan 40 is deformed. When the cooking utensil 1 works, the pressure inside the cooking utensil 1 rises, the inner pot 40 can downwards extrude the at least one first pressure-bearing device 70 of the base plate 202 under the action of the pressure, so that the gap between the inner pot 40 and the upper cover 30 is increased, the tightness between the inner pot 40 and the upper cover 30 is reduced, and the pressure is relieved through the gap, so that the working pressure of the cooking utensil 1 is within a reasonable and safe range. This structure setting makes cooking utensil 1 can do lighter, thinner, has reduced manufacturing cost, simultaneously, has reduced the occupancy to 1 inner space of cooking utensil, has reduced cooking utensil 1's whole overall dimension, has promoted the performance and the user experience of product. And this structural setting makes the heat that cooking utensil 1 during operation produced can be in the very first time, directly act on interior pot 40 in large area, guaranteed interior pot 40's thermally equivalent, and then reduced thermal loss, improved the heating efficiency of product, simultaneously, this structural setting can avoid coil disc subassembly 50 thermal concentrated to reduce coil disc subassembly 50's temperature rise, guaranteed the security that cooking utensil 1 used.

In the embodiment, as shown in fig. 5, the coil disc assembly 50 is disposed on the inner pot 40 by printing, etching, spraying, etc., and the bottom of the inner pot 40 has no pressure-bearing structure, i.e. the cooking utensil 1 has no elastic pressure-releasing device. The upper cover 30 of the cooking appliance 1 is buckled and sealed with the inner pot 40, and when the cooking appliance 1 works, the pressure relief control is carried out through the air valve connected with the inner pot 40, so that the working pressure of the cooking appliance 1 is ensured to be in a reasonable and safe range. The wireless power supply device 60 is disposed on the housing 10 or on the inner pot 40, and when the inner pot 40 is placed in the outer pot 20 and the cooking appliance 1 is operated, the wireless power supply device 60 and the coil disc assembly 50 heat the inner pot 40 in a mutual inductance manner. This structure setting makes cooking utensil 1 can do lighter, thinner, has reduced manufacturing cost, has reduced the occupancy to 1 inner space of cooking utensil, has reduced cooking utensil 1's whole overall dimension, has promoted the performance and the user experience of product. And this structural setting makes the heat that cooking utensil 1 during operation produced can be in the very first time, directly act on interior pot 40 in large area, guaranteed interior pot 40's thermally equivalent, and then reduced thermal loss, improved the heating efficiency of product, simultaneously, this structural setting can avoid coil disc subassembly 50 thermal concentrated to reduce coil disc subassembly 50's temperature rise, guaranteed the security that cooking utensil 1 used.

In an embodiment, as shown in fig. 3 and 4, the coil disc assembly 50 is disposed on the inner pan 40 by printing, etching, spraying, etc., and the three second pressure-bearing devices 80 are fixed on the inner pan 40 by welding, riveting, screwing, etc. The sum of the contact areas of the three second pressure-bearing devices 80 and the inner pot 40 is more than or equal to 3 percent of the area of the outer bottom wall of the inner pot 40. The three second pressure means 80 are positioned to ensure even support of the bottom of the inner pan 40. When the cooking appliance 1 works, the pressure inside the cooking appliance rises, the inner pot 40 can downwards extrude the three second pressure-bearing devices 80 under the action of the pressure, so that the gap between the inner pot 40 and the upper cover 30 is increased, the tightness between the inner pot 40 and the upper cover 30 is reduced, and the pressure is relieved through the gap, so that the working pressure of the cooking appliance 1 is ensured to be within a reasonable and safe range. When the inner pot 40 is placed in the outer pot 20 and the cooking appliance 1 is operated, the wireless power supply device 60 and the coil disc assembly 50 heat the inner pot 40 in a mutual inductance manner. This structure setting makes cooking utensil 1 can do lighter, thinner, has reduced manufacturing cost, has reduced the occupancy to 1 inner space of cooking utensil, has reduced cooking utensil 1's whole overall dimension, has promoted the performance and the user experience of product. And this structural setting makes the heat that cooking utensil 1 during operation produced can be in the very first time, directly act on interior pot 40 in large area, guaranteed interior pot 40's thermally equivalent, and then reduced thermal loss, improved the heating efficiency of product, simultaneously, this structural setting can avoid coil disc subassembly 50 thermal concentrated to reduce coil disc subassembly 50's temperature rise, guaranteed the security that cooking utensil 1 used.

In an exemplary embodiment, as shown in fig. 2, the coil disc assembly 50 is disposed on the inner pot 40 by printing, etching, spraying, etc., and the at least one second pressure-bearing device 80 is fixed on the outer pot 20 by welding, riveting, screwing, etc. The sum of the contact areas of the at least one second pressure-containing device 80 and the inner pan 40 is greater than or equal to 3% of the area of the outer bottom wall of the inner pan 40. The at least one second pressure containing means 80 is positioned to ensure even support of the bottom of the inner pan 40. When the cooking appliance 1 works, the pressure inside the cooking appliance rises, the inner pot 40 can downwards extrude the at least one second pressure-bearing device 80 under the action of the pressure, so that the gap between the inner pot 40 and the upper cover 30 is increased, the tightness between the inner pot 40 and the upper cover 30 is reduced, and the pressure is relieved through the gap, so that the working pressure of the cooking appliance 1 is ensured to be in a reasonable and safe range. When the inner pot 40 is placed in the outer pot 20 and the cooking appliance 1 is operated, the wireless power supply device 60 and the coil disc assembly 50 heat the inner pot 40 in a mutual inductance manner. This structure setting makes cooking utensil 1 can do lighter, thinner, has reduced manufacturing cost, has reduced the occupancy to 1 inner space of cooking utensil, has reduced cooking utensil 1's whole overall dimension, has promoted the performance and the user experience of product. And this structural setting makes the heat that cooking utensil 1 during operation produced can be in the very first time, directly act on interior pot 40 in large area, guaranteed interior pot 40's thermally equivalent, and then reduced thermal loss, improved the heating efficiency of product, simultaneously, this structural setting can avoid coil disc subassembly 50 thermal concentrated to reduce coil disc subassembly 50's temperature rise, guaranteed the security that cooking utensil 1 used.

In a particular embodiment, the coil disk assembly 50 includes: coil layer and soft magnetic layer, soft magnetic layer set up in the outside on coil layer, and soft magnetic layer can be with the produced magnetic field gathering of coil layer circular telegram for the heat gathering that electromagnetic heating produced, and then improve heating efficiency, simultaneously, through the distribution on reasonable design soft magnetic layer and coil layer, make the even distribution in interior pot 40 of heat that electromagnetic heating produced, make interior pot 40 be heated evenly, thereby improve the culinary art effect.

In the present invention, the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a cooking utensil, cooking utensil includes casing, outer pot and upper cover, the casing is upper end open-ended cavity, outer pot sets up in the cavity, the upper cover lid closes the open end of cavity, its characterized in that, cooking utensil still includes:

the inner pot can be placed in the outer pot;

a coil disc assembly disposed on the inner pan;

the wireless power supply device is arranged on the shell or the inner pot;

wherein the wireless power supply device and the coil panel assembly heat the inner pot in a mutual inductance mode;

the coil panel assembly includes: the soft magnetic layer is arranged on the outer side of the coil layer;

the coil disc assembly is arranged on the inner pot in a printing, etching and spraying mode;

when the coil panel assembly is arranged on the inner pot, at least one second pressure-bearing device is positioned below the coil panel assembly, and the arrangement position of the at least one second pressure-bearing device comprises any one of the following positions: the outer bottom wall of the inner pot, the shell and the outer pot.

2. The cooking appliance of claim 1,

when the coil disc assembly is arranged on the inner pot, the air valve is arranged on the upper cover and communicated with the inner pot.

3. The cooking appliance of claim 1,

the contact area of the at least one second pressure-bearing device and the inner pot is more than or equal to 3% of the area of the outer bottom wall of the inner pot.

4. The cooking appliance of claim 1,

the at least one second bearing device comprises any one or combination of the following: at least one ceramic pressure-bearing device, at least one high-temperature-resistant plastic pressure-bearing device and at least one aluminum pressure-bearing device.

5. The cooking appliance according to any one of claims 1 to 4,

the cooking appliance is an electric pressure cooker.