CN220141357U - Pressure cooking utensil - Google Patents

Abstract

The utility model discloses a pressure cooking appliance which comprises an inner container, a heat preservation cover positioned on the outer side of the inner container and an electromagnetic heating device positioned below the inner container, wherein a supporting step used for supporting the inner container and a mounting step positioned below the supporting step and used for fixing the electromagnetic heating device are arranged on the side wall of the heat preservation cover, one side of the supporting step, which faces the center of the inner container, is provided with a reinforcing wall, and at least part of the region of the reinforcing wall is positioned between the supporting step and the mounting step. The reinforcing wall connects the support step and the installation step into a whole, so that the attractiveness of the heat preservation cover is improved, the integrity of the heat preservation cover is better, the electromagnetic heating device is more stable in connection with the heat preservation cover, and meanwhile, the bearing stability of the heat preservation cover to the liner is also improved. The reinforcing wall is positioned on one side of the supporting step, which faces the center of the liner, so that the reinforcing wall is closer to the center of the heat preservation cover, and further the strength of the heat preservation cover is improved.

Description

Pressure cooking utensil

Technical Field

The utility model belongs to the technical field of household appliances, and particularly relates to a pressure cooking appliance.

Background

The pressure cooker generally comprises an inner container with a cooking cavity, a heat preservation cover arranged on the outer side of the inner container and a heating device arranged below the inner container and connected to the bottom of the heat preservation cover. In order to obtain higher heating efficiency and heating uniformity, an electromagnetic coil is generally used as a heating device on some high-end models, so that the liner is heated by using an electromagnetic heating mode.

The inner bag is generally placed inside the heat preservation cover, and the bearing structure of heat preservation cover from bottom to top holds the inner bag to the heat preservation cover still is provided with the fixed knot who is used for installing electromagnetic wire dish in bearing structure's below, through screw with electromagnetic wire dish and fixed knot construct fastening connection, bearing structure and below's fixed knot construct for independent structure relatively, consequently structural strength is lower.

And the heat preservation cover is usually a thin-wall structure, after the electromagnetic wire coil is fixed with the heat preservation cover, under the pretightening force action of a fastener, the fixed structure is easy to deform, so that the bottom of the heat preservation cover is out of round, the installation stability of the electromagnetic wire coil is further affected, and the bearing stability of the liner is further affected.

In addition, when carrying out pressure cooking, the inside pressure of inner bag risees, can make the inner bag downwardly moving under the pressure effect, and then forms great axial pressure to the bearing structure of heat preservation cover, just so further increased the atress of heat preservation cover for the whole easy deformation that takes place of heat preservation cover, lead to the life of heat preservation cover lower, influence user's use experience.

Disclosure of Invention

The utility model provides a pressure cooking utensil which aims at solving the problems that the structural strength of a heat preservation cover at the part for supporting an inner container and the part for fixing an electromagnetic wire coil is low and the heat preservation cover is easy to deform.

The technical scheme adopted by the utility model is as follows:

the utility model provides a pressure cooking utensil, includes the inner bag, is located the heat preservation cover in the inner bag outside and be located electromagnetic heating device of inner bag below, the lateral wall of heat preservation cover is provided with and is used for the bearing the support step of inner bag, and be located support step below and be used for fixing electromagnetic heating device's installation step, support step orientation one side at the inner bag center is provided with the stiffening wall, at least partial region of stiffening wall is located support step with between the installation step.

The pressure cooking appliance of the utility model is also characterized by the following accessories:

the reinforcing wall is arranged in an annular shape so as to encircle the periphery of the inner container.

The reinforcing wall extends downward to have a first reinforcing section located between the support step and the mounting step, and a second reinforcing section located below the mounting step, the second reinforcing section encircling the outer periphery of the electromagnetic heating device.

The second reinforcing section is provided with a supporting rib position protruding towards the center of the electromagnetic heating device, and the supporting rib position is abutted with the electromagnetic heating device to support the electromagnetic heating device.

The supporting step is provided with a supporting surface for bearing the inner container, and the supporting surface is horizontally arranged; alternatively, the support surface is disposed obliquely downward.

The support steps are provided with a plurality of concave parts at intervals along the circumferential direction of the heat preservation cover, and the concave parts are sunken downwards to form the installation steps.

The mounting step is provided with a mounting plane, and the mounting plane is horizontally arranged.

The electromagnetic heating device comprises a wire coil and an electromagnetic coil wound on the wire coil, wherein an installation part protruding outwards along the radial direction of the wire coil is arranged on the periphery of the wire coil, and the installation part is lapped against the installation step.

The mounting step is provided with a first fixed position and a second fixed position, the wire coil is fixed on the first fixed position, the cooking utensil further comprises a base, and the base is fixed on the second fixed position.

The reinforcing wall is connected with the supporting step and the mounting step, and the connection part adopts arc transition.

By adopting the technical scheme, the utility model has the following beneficial effects:

1. according to the utility model, the supporting step for bearing the liner and the mounting step for fixing the electromagnetic heating device are arranged on the side wall of the heat preservation cover, the reinforcing wall is arranged between the supporting step and the mounting step, and connects the supporting step and the mounting step into a whole, so that the attractiveness of the heat preservation cover is improved, the integrity of the heat preservation cover is better, the heat preservation cover has higher structural strength, and the reinforcing wall extends along the axial direction of the heat preservation cover, so that the heat preservation cover has better axial compression performance and can bear larger axial pressure, and the risk of deformation caused by the pressure of the liner on the heat preservation cover is reduced. And the improvement of intensity makes the bottom of heat preservation cover is difficult for losing the circle to guaranteed the stability of structure, make electromagnetic heating device with the connection of heat preservation cover is more stable, has also improved simultaneously the heat preservation cover is right the bearing stability of inner bag.

In addition, the reinforcing wall is located the support step is towards one side at the inner bag center, makes it be close to more in one side the center of heat preservation cover to make it can bear bigger axial pressure, further improves the intensity of heat preservation cover, on the other hand, when the inner bag is arranged in on the support step, especially when the support step is the inclined plane, the inner bag can keep centering with the heat preservation cover under the action of gravity, and the inner bag is right at this moment the pressure of support step is concentrated support step is close to the one end at inner bag center, consequently will the reinforcing wall sets up here, can show improvement support step's intensity guarantees right the stability of inner bag bearing.

Moreover, because the reinforcing wall promotes the bulk strength of heat preservation cover, consequently the thickness of heat preservation cover just can attenuate, not only the cost is reduced to also be convenient for install, reduce complete machine weight simultaneously, convenience of customers gets and puts.

2. As a preferred embodiment of the present utility model, the reinforcing wall is disposed in a ring shape so as to surround the outer circumference of the inner container. The reinforcing wall is of a continuous and uninterrupted annular structure, the integrity is improved, the support step is supported by the heat-insulating cover circumferentially in a circle, a circle of complete structural reinforcing area is formed at the support step and the mounting step of the heat-insulating cover, the risk of deformation of the heat-insulating cover is further reduced, and the problem that the heat-insulating cover forms a weak strength area due to the fact that the reinforcing wall is discontinuous is avoided, so that the heat-insulating cover is locally deformed.

3. As a preferred embodiment of the present utility model, the reinforcing wall extends downward to have a first reinforcing section located between the support step and the mounting step, and a second reinforcing section located below the mounting step, the second reinforcing section surrounding the outer periphery of the electromagnetic heating device. The reinforcing wall extends downwards for a longer length to improve the supporting effect of the reinforcing wall on the upper area by increasing the strength of the reinforcing wall. Meanwhile, the second reinforcing section not only can further improve the structural strength below the installation step, namely the bottom of the heat preservation cover, but also surrounds the periphery of the electromagnetic heating device, the magnetic field generated by the electromagnetic heating device is isolated in the space surrounded by the second reinforcing section, the radiation protection effect is achieved, and electromagnetic radiation leakage is avoided.

4. As a preferred embodiment of the present utility model, the second reinforcing section has a support rib protruding toward the center of the electromagnetic heating device, and the support rib abuts against the electromagnetic heating device to support the electromagnetic heating device. After the electromagnetic heating device is fixed with the installation step, the installation step can be pressed downwards or pulled under the gravity action of the electromagnetic heating device, the strength of the reinforcing wall is further improved by the aid of the arrangement of the supporting ribs, the bottom of the heat preservation cover is prevented from being deformed out of round, the supporting ribs can bear the electromagnetic heating device from the lower part of the electromagnetic heating device, so that the stress of the installation step is shared, the installation stability of the electromagnetic heating device is improved, and meanwhile, the stress of the heat preservation cover is dispersed more, and the deformation caused by stress concentration is avoided.

5. As a preferred embodiment of the present utility model, the electromagnetic heating device includes a wire coil and an electromagnetic coil wound around the wire coil, and the outer periphery of the wire coil is provided with a mounting portion protruding radially outward of the wire coil, and the mounting portion abuts against the mounting step. When the electromagnetic heating device is assembled, the installation part can be firstly abutted against the installation step, so that the electromagnetic heating device and the heat preservation cover are positioned, the positioning mode is simple and convenient, the subsequent fixing operation is convenient, the assembly steps are optimized, the assembly difficulty is further reduced, and the assembly efficiency is improved. In addition, the heat preservation cover with electromagnetic heating device's joint force not only provides by the connecting piece, the installation step also can be right the installation department plays the bearing effect to alleviate the atress of connecting piece, reduce the risk that the connecting piece damaged, improve electromagnetic heating device's connection stability.

Drawings

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

FIG. 1 is a schematic view of the heat-insulating cover according to an embodiment of the present utility model;

FIG. 2 is a schematic view of the heat insulation cover according to another embodiment of the present utility model;

FIG. 3 is a cross-sectional view of a partial area of the pressure cooking appliance according to an embodiment of the present utility model;

FIG. 4 is an enlarged view of area A of FIG. 3;

FIG. 5 is an enlarged view of region B of FIG. 3;

fig. 6 is a schematic structural view of the electromagnetic heating device according to an embodiment of the present utility model;

FIG. 7 is a cross-sectional view of a portion of the cooking appliance according to an embodiment of the present utility model;

fig. 8 is an enlarged view of region C in fig. 7.

Wherein:

1, a heat preservation cover; 11 supporting steps; a 111 support surface; 12 mounting steps; 121 a first fixed position; 122 a second fixed location; 13 reinforcing walls; 131 a first reinforcing section; 132 a second reinforcing section; 1321 support the rib position; 14 a recess;

2, an inner container; 21 mating parts; 22 a first cavity; 23 a second cavity;

3 an electromagnetic heating device; 31 wire coil; 311 mounting parts; a 32 electromagnetic coil;

4, a base; 41 fixing the post.

Detailed Description

In order to more clearly illustrate the general inventive concept, a detailed description is given below by way of example with reference to the accompanying drawings.

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

In addition, in the description of the present utility model, it should be understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, the descriptions of the terms "implementation," "embodiment," "one embodiment," "example," or "particular example" and the like mean 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 present utility model. In this specification, schematic representations of the above terms are not necessarily directed 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.

As shown in fig. 1 to 8, a pressure cooking appliance comprises a liner 2, a heat insulation cover 1 positioned outside the liner 2 and an electromagnetic heating device 3 positioned below the liner 2, wherein a supporting step 11 for supporting the liner 2 and a mounting step 12 positioned below the supporting step 11 and used for fixing the electromagnetic heating device 3 are arranged on the side, facing the center of the liner 2, of the supporting step 11, a reinforcing wall 13 is arranged on one side, facing the center of the liner 2, of the supporting step 11, and at least part of the area of the reinforcing wall 13 is positioned between the supporting step 11 and the mounting step 12.

According to the utility model, the supporting step 11 for bearing the liner 2 and the mounting step 12 for fixing the electromagnetic heating device 3 are arranged on the side wall of the heat preservation cover 1, the reinforcing wall 13 is arranged between the supporting step 11 and the mounting step 12, and the supporting step 11 and the mounting step 12 are connected into a whole by the reinforcing wall 13, so that the appearance of the heat preservation cover 1 is improved, the integrity of the heat preservation cover 1 is better, the heat preservation cover 1 has higher structural strength, and the reinforcing wall 13 extends along the axis direction of the heat preservation cover 1, so that the heat preservation cover 1 has better axial compression performance and can bear larger axial compression, and the risk that the heat preservation cover 1 is deformed due to the compression of the liner 2 is reduced. And the improvement of intensity makes the bottom of heat preservation cover 1 is difficult for losing the circle to guaranteed the stability of structure, make electromagnetic heating device 3 with the connection of heat preservation cover 1 is more stable, has also improved simultaneously heat preservation cover 1 is right the bearing stability of inner bag 2.

In addition, the reinforcing wall 13 is located on one side of the supporting step 11 facing the center of the liner 2, so that on one hand, the supporting step is closer to the center of the heat insulation cover 1, and therefore, the strength of the heat insulation cover 1 is further improved, on the other hand, when the liner 2 is placed on the supporting step 11, particularly when the supporting step 11 is an inclined plane, as shown in fig. 3, the liner 2 and the heat insulation cover 1 can keep centering under the action of gravity, and at the moment, the pressure of the liner 2 on the supporting step 11 is concentrated on one end of the supporting step 11, which is close to the center of the liner 2, so that the reinforcing wall 13 is arranged at the end, the strength of the supporting step 11 can be remarkably improved, and the stability of the bearing of the liner 2 is ensured.

Moreover, because the reinforcing wall 13 promotes the overall strength of the heat-insulating cover 1, the thickness of the heat-insulating cover 1 can be reduced, the cost is reduced, the installation is convenient, the weight of the whole machine is reduced, and the heat-insulating cover is convenient for a user to take and put.

Specifically, as shown in fig. 1 and 2, a local area of the side wall of the heat-insulating cover 1 protrudes inward to form the supporting step 11, the supporting step 11 extends along the circumferential direction of the heat-insulating cover 1, the supporting step 11 is partially recessed downward to form the mounting step 12 in the circumferential direction of the supporting step 11, and the supporting step 11 and the mounting step 12 are bent downward toward one end of the center of the liner 2 and extend downward along the axis of the heat-insulating cover 1 to form the reinforcing wall 13. Therefore, the reinforcing wall 13, the supporting step 11 and the mounting step 12 are integrally formed, the strength of the joint is further improved, and the possibility of deformation is reduced.

In a preferred embodiment, as shown in fig. 1 to 3, the reinforcing wall 13 extends downward to form a part of a side wall of the heat insulation cover 1, so that the heat insulation cover 1 has a reducing structure, an upper cavity is defined by a side wall of the heat insulation cover 1 above the supporting step 11, the reinforcing wall 13 extends downward from the supporting step 11 to define the lower cavity, and the diameter of the upper cavity is larger than that of the lower cavity.

Of course, the heat-insulating cover 1 may not be configured as a variable diameter structure with different diameters of the upper and lower cavities, and the supporting step 11 may be formed to protrude only in a partial area of the side wall, and the supporting step 11 may have a certain thickness so that the side wall of the supporting step 11 forms the reinforcing wall 13.

It should be noted that, the present utility model does not limit the bearing position of the liner 2 by the supporting step 11, and it may be one of the following embodiments:

embodiment one: in this embodiment, the bottom wall of the liner 2 is disposed on the supporting step 11, so that the supporting step 11 supports the bottom of the liner 2, and when the pressure inside the liner 2 increases and moves downward, the pressure is transmitted to the supporting step 11 through the bottom of the liner 2.

Embodiment two: as a preferred embodiment, as shown in fig. 3, the side wall of the inner container 2 is provided with a matching portion 21 that matches with the supporting step 11, the supporting step 11 supports the matching portion 21, so as to transfer the bearing position from the bottom to the waist, and release the bottom space of the inner container 2, and as the bottom of the inner container 2 is further provided with the electromagnetic heating device 3, the temperature measuring member, and other components, the bearing position is transferred to the waist, so that the internal structure of the cooking appliance is more reasonable, the space utilization is improved, and the interference between the concentrated arrangement of all components and the bottom of the inner container 2 is avoided.

Further, as shown in fig. 3, the side wall of the liner 2 protrudes inwards to form the matching portion 21, so as to divide the inner space of the liner 2 into a first cavity 22 and a second cavity 23 located below the first cavity 22, where the inner diameter of the first cavity 22 is greater than that of the second cavity 23, so that the liner 2 is of a variable diameter structure, the overall wall thickness of the liner 2 is more uniform, the processing difficulty is reduced, and meanwhile the liner 2 is uniformly heated.

Of course, the inner container 2 may be provided with a protrusion structure only on the outer wall to form the engaging portion 21, which is not limited herein.

In a preferred embodiment, as shown in fig. 1 and 2, the reinforcement wall 13 is disposed in a ring shape so as to surround the outer circumference of the liner 2.

The reinforcing wall 13 is of a continuous and uninterrupted annular structure, the integrity is improved, the support step 11 is supported by the heat-insulating cover 1 circumferentially in a circle, a complete structural reinforcing area is formed at the support step 11 and the mounting step 12 of the heat-insulating cover 1, the risk of deformation of the heat-insulating cover 1 is further reduced, and the problem that a weak strength area is formed in the heat-insulating cover 1 due to the fact that the reinforcing wall 13 is discontinuous is avoided, so that the heat-insulating cover 1 is locally deformed is solved.

Preferably, as shown in fig. 1 and 2, the bottom of the heat-insulating cover 1 has an opening to fit the different shape of the inner container 2 (for example, the spherical inner container shown in fig. 3, or the straight wall inner container, etc.), and the bottom of the different shape of the inner container 2 can pass through the opening without interfering with the heat-insulating cover 1. And meanwhile, the opening can improve the heat dissipation effect of the heat insulation cover 1.

The present utility model is not limited to the extension length of the reinforcement wall 13, and may be one of the following embodiments:

embodiment one: in the present embodiment, the reinforcing wall 13 extends downward from the support surface of the support step 11 to the step surface of the mounting step 12. Specifically, the mounting step 12 and the supporting step 11 form a step surface having a height unevenness in the circumferential direction of the heat-retaining cover 1, the reinforcing wall 13 extending downward is provided at the supporting surface of the supporting step 11, and the reinforcing wall 13 is not provided below the mounting step 12.

Embodiment two: in the present embodiment, as shown in fig. 2 and 3, the reinforcing wall 13 extends downward to have a first reinforcing section 131 located between the support step 11 and the mounting step 12, and a second reinforcing section 132 located below the mounting step 12, the second reinforcing section 132 surrounding the outer periphery of the electromagnetic heating device 3.

It will be appreciated that the larger the extension distance of the reinforcing wall 13, the larger the volume of the reinforcing wall 13 and the higher the strength thereof, and the reinforcing wall 13 extends downward by a longer length, so as to enhance the supporting effect of the reinforcing wall 13 on the upper region by increasing the strength thereof.

Meanwhile, the second reinforcing section 132 not only can further improve the structural strength below the mounting step 12, that is, at the bottom of the heat insulation cover 1, but also the second reinforcing section 132 also surrounds the periphery of the electromagnetic heating device 3, so that the magnetic field generated by the electromagnetic heating device 3 is isolated in the space surrounded by the second reinforcing section 132, thereby playing a role in radiation protection and avoiding electromagnetic radiation leakage.

Specifically, as shown in fig. 3, the lower edge of the second reinforcing section 132 is not higher than the lower edge of the electromagnetic heating device 3, and the second reinforcing section 132 is a circumferentially closed ring structure, so as to block the electromagnetic radiation generated by the electromagnetic heating device 3 by 360 °.

Preferably, as shown in fig. 2, the second reinforcing section 132 has a supporting rib position 1321 protruding toward the center of the electromagnetic heating device 3, and the supporting rib position 1321 abuts against the electromagnetic heating device 3 to support the electromagnetic heating device 3.

Specifically, the supporting rib portion 1321 may be formed by bending the second reinforcing section 132 as shown in fig. 2, or the wall thickness of a partial region of the second reinforcing section 132 may be increased to form the supporting rib portion 1321 protruding toward the inside.

After the electromagnetic heating device 3 is fixed with the installation step 12, under the gravity action of the electromagnetic heating device 3, the installation step 12 can be pressed downwards or pulled, the setting of the supporting rib position 1321 not only further improves the strength of the reinforcing wall 13 and prevents the deformation of the bottom of the heat preservation cover 1 from being out of round, but also enables the supporting rib position 1321 to support the electromagnetic heating device 3 from the lower part of the electromagnetic heating device 3 so as to share the stress of the installation step 12, and when improving the installation stability of the electromagnetic heating device 3, the stress of the heat preservation cover 1 is more dispersed and avoids the deformation caused by stress concentration.

Preferably, the supporting rib 1321 is in an annular structure, so as to support the electromagnetic heating device 3 circumferentially and completely, thereby improving the bearing stability of the electromagnetic heating device 3.

As a preferred embodiment of the present utility model, as shown in fig. 5, the supporting step 11 has a supporting surface 111 for supporting the liner 2, but the present utility model is not limited to the arrangement of the supporting surface 111, and may be one of the following embodiments:

embodiment one: in this embodiment, the supporting surface 111 is horizontally disposed to improve the stability of the support of the liner 2.

Embodiment two: as a preferred embodiment, as shown in fig. 5, the supporting surface 111 is disposed obliquely downward so as to form an angle with the horizontal plane. The inclined supporting surface 111 makes the included angle between the supporting surface and the side wall of the heat preservation cover 1 above the supporting step 11 be an obtuse angle, which is convenient for the user to clean the corner and avoids generating sanitary dead angles.

In addition, when the liner 2 is placed on the supporting step 11, due to the inclination of the supporting surface 111, the liner 2 will slide along the supporting surface 111 under the action of gravity, so that the liner 2 slides under the action of gravity to keep the central position of the heat insulation cover 1, and the axis of the liner 2 coincides with the axis of the heat insulation cover 1. And then make pot cover sealing washer with the good contact of inner bag 2 mouth edge forms the round and seals, prevent the sealing washer with the partial region in inner bag 2 mouth edge contact failure leads to the gas leakage.

Preferably, as shown in fig. 1 and 2, the supporting step 11 is provided with a plurality of concave portions 14 at intervals along the circumferential direction of the heat insulation cover 1, and the concave portions 14 are concave downward to form the mounting step 12.

Specifically, as shown in fig. 1, the support steps 11 are multi-segmented along the circumferential direction of the heat-insulating cover 1, and the mounting steps 12 are located between two adjacent support steps 11. The supporting step 11 and the mounting step 12 are integrally formed, so that the heat-insulating cover 1 has better integrity, and higher strength is obtained.

Further, the mounting step 12 has a mounting plane, which is disposed horizontally.

The installation plane that the level set up not only conveniently with electromagnetic heating device 3 cooperation, the assembly of being convenient for has increased moreover heat preservation cover 1 with electromagnetic heating device 3 is the area of contact of junction for the two is the face contact, improves joint strength.

The way in which the electromagnetic heating device 3 is mated with the mounting step 12 is not limited, and may be one of the following embodiments:

embodiment one: in the present embodiment, the electromagnetic heating device 3 includes a coil 31 and an electromagnetic coil 32 wound around the coil 31, the coil 31 has a mounting portion 311, and the mounting portion 311 is fixed to the lower side of the mounting step 12 in a mating manner.

Embodiment two: in this embodiment, as shown in fig. 4 and 6, the electromagnetic heating device 3 includes a coil 31 and an electromagnetic coil 32 wound around the coil 31, and an installation portion 311 protruding radially outward is provided on the outer periphery of the coil 31, and the installation portion 311 is abutted against the installation step 12 so that the installation portion 311 is fixed to the upper side of the installation step 12 in a fitting manner.

When the electromagnetic heating device 3 is assembled, the mounting part 311 can be firstly abutted against the mounting step 12, so that the electromagnetic heating device 3 and the heat preservation cover 1 are positioned, the positioning mode is simple and convenient, the subsequent fixing operation is convenient, the assembly steps are optimized, the assembly difficulty is further reduced, and the assembly efficiency is improved. In addition, the connection force of the heat preservation cover 1 and the electromagnetic heating device 3 is not only provided by a connecting piece, but also the mounting step 12 can play a bearing role on the mounting part 311, so that the stress of the connecting piece is relieved, the risk of damage of the connecting piece is reduced, and the connection stability of the electromagnetic heating device 3 is improved.

Specifically, the assembly mode of the wire coil 31 is as follows: the wire coil 31 is placed into the heat-insulating cover 1 from the top opening of the heat-insulating cover 1, the mounting portion 311 is made to abut against the mounting step 12, and then the mounting portion 311 is fixedly connected with the mounting step 12 by screws or other fixing means.

Further, as shown in fig. 1 and 7, the mounting step 12 is provided with a first fixing location 121 and a second fixing location 122, the wire coil 31 is fixed to the first fixing location 121, and the cooking appliance further includes a base 4, and the base 4 is fixed to the second fixing location 122.

In the prior art, some cooking appliances are directly fixed with the base and the wire coil, and when the cooking appliances fall or collide and extrude in the product transportation or use process, the base deforms, so that the base drives the position of the wire coil to move, the distance between the wire coil and the liner is changed, the electromagnetic heating efficiency is affected, or the wire coil interferes with other parts, and the wire coil is damaged.

In this embodiment, the first fixing portion 121 and the second fixing portion 122 are respectively disposed on the mounting step 12, so that the base 4 and the wire coil 31 are respectively fixed at different positions of the heat insulation cover 1, thereby reducing the influence of deformation of the base 4 on the position of the wire coil 31. And, the first fixing position 121 and the second fixing position 122 are arranged in a staggered manner, so that the first fixing position 121 and the second fixing position 122 are not interfered with each other during assembly.

Specifically, as shown in fig. 7 and 8, the base 4 has a fixing post 41 protruding upward, and the fixing post 41 is fixedly connected to the underside of the mounting step 12.

After the assembly, the wire coil 31 is positioned on the upper side of the mounting step 12, and the fixing post 41 of the base 4 is positioned on the lower side of the mounting step 12. For example, in one embodiment, as shown in fig. 8, the first fixing portion 121 is connected to the wire coil 31 by a screw, the second fixing portion 122 is connected to the fixing post 41 of the base 4 by a screw, and both screws are fixed by a bottom-up operation.

Preferably, as shown in fig. 1 and 2, the reinforcement wall 13 is connected to the support step 11 and the mounting step 12, and the connection uses an arc transition.

The reinforcing wall 13 with the junction of supporting step 11 and installation step 12 all adopts the circular arc transition for the inner wall of heat preservation cover 1 is whole more mellow and more, reduces the edges and corners, and then the user is getting when putting inner bag 2, even inner bag 2 with the inner wall of heat preservation cover 1 bumps, also can not take place violently scraping, reduces inner bag 2 with heat preservation cover 1 is by the risk of fish tail, guarantees appearance quality and performance, improves the use experience.

The utility model can be realized by adopting or referring to the prior art at the places which are not described in the utility model.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments.

The foregoing is merely exemplary of the present utility model and is not intended to limit the present utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are to be included in the scope of the claims of the present utility model.

Claims (10)

1. The pressure cooking utensil comprises an inner container, a heat preservation cover positioned at the outer side of the inner container and an electromagnetic heating device positioned below the inner container, and is characterized in that,

the side wall of the heat preservation cover is provided with a supporting step used for bearing the inner container, and a mounting step which is arranged below the supporting step and used for fixing the electromagnetic heating device, one side of the supporting step, which faces towards the center of the inner container, is provided with a reinforcing wall, and at least part of the area of the reinforcing wall is positioned between the supporting step and the mounting step.

2. The pressure cooking appliance of claim 1, wherein the pressure cooker is configured to control the pressure of the air,

the reinforcing wall is arranged in an annular shape so as to encircle the periphery of the inner container.

3. The pressure cooking appliance of claim 1, wherein the pressure cooker is configured to control the pressure of the air,

the reinforcing wall extends downward to have a first reinforcing section located between the support step and the mounting step, and a second reinforcing section located below the mounting step, the second reinforcing section encircling the outer periphery of the electromagnetic heating device.

4. A pressure cooking appliance according to claim 3, wherein,

the second reinforcing section is provided with a supporting rib position protruding towards the center of the electromagnetic heating device, and the supporting rib position is abutted with the electromagnetic heating device to support the electromagnetic heating device.

5. The pressure cooking appliance of claim 1, wherein the pressure cooker is configured to control the pressure of the air,

the supporting step is provided with a supporting surface for bearing the inner container, and the supporting surface is horizontally arranged; alternatively, the support surface is disposed obliquely downward.

6. The pressure cooking apparatus according to claim 5, wherein,

the support steps are provided with a plurality of concave parts at intervals along the circumferential direction of the heat preservation cover, and the concave parts are sunken downwards to form the installation steps.

7. The pressure cooking appliance of claim 6, wherein the pressure cooker is configured to control the pressure of the air,

the mounting step is provided with a mounting plane, and the mounting plane is horizontally arranged.

8. The pressure cooking appliance of claim 1, wherein the pressure cooker is configured to control the pressure of the air,

the electromagnetic heating device comprises a wire coil and an electromagnetic coil wound on the wire coil, wherein an installation part protruding outwards along the radial direction of the wire coil is arranged on the periphery of the wire coil, and the installation part is lapped against the installation step.

9. The pressure cooking appliance of claim 8, wherein the pressure cooker is configured to control the pressure of the air,

the mounting step is provided with a first fixed position and a second fixed position, the wire coil is fixed on the first fixed position, the cooking utensil further comprises a base, and the base is fixed on the second fixed position.

10. The pressure cooking appliance of claim 1, wherein the pressure cooker is configured to control the pressure of the air,

the reinforcing wall is connected with the supporting step and the mounting step, and the connection part adopts arc transition.