CN216960238U

CN216960238U - Electromagnetic heating device and cooking utensil

Info

Publication number: CN216960238U
Application number: CN202123345608.2U
Authority: CN
Inventors: 吕顺召; 王志锋; 覃琼; 张任; 陈秋杉
Original assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-07-12
Anticipated expiration: 2031-12-27

Abstract

The utility model discloses an electromagnetic heating device and a cooking utensil, wherein the electromagnetic heating device comprises a base, a circuit board and an insulating part, wherein the base is provided with an open installation cavity, and the installation cavity is provided with an installation surface facing the opening; the circuit board is arranged in the mounting cavity and supported on the mounting surface; the insulating member is elastically deformable and is arranged between the circuit board and the mounting surface in a compression mode. According to the utility model, the insulating piece is elastically deformable and is compressed between the circuit board and the mounting surface, so that elastic abutting force is applied to the circuit board and the mounting surface by the insulating piece, the elastic abutting force can increase the tight connection between the insulating piece and the mounting surface and can abut the circuit board towards the opening, and the circuit board and the stove panel are fully pressed close to each other when the stove panel is mounted at the opening; the insulating part has both insulating property and elastic propping property, and is favorable for simplifying the structure and the installation procedure of the circuit board during installation.

Description

Electromagnetic heating device and cooking utensil

Technical Field

The utility model relates to the technical field of electromagnetic heating cooking appliances, in particular to an electromagnetic heating device and a cooking appliance.

Background

The circuit board in the multi-head stove widely used nowadays is accommodated in the base and needs to be close to the stove panel as much as possible when in use. Therefore, the multi-head stove in the prior art needs to be provided with a layer of insulating part and an elastic part below the circuit board, and the insulating part, the elastic part and the circuit board need to be sequentially installed in installation, so that the complexity of structure and installation is increased, and the installation position accuracy of the insulating part, the elastic part and the circuit board needs to be considered, so that the processing is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide an electromagnetic heating device and a cooking utensil, and aims to solve the problem that a traditional circuit board is inconvenient to process during installation.

In order to achieve the above object, the present invention provides an electromagnetic heating apparatus, including:

the base is provided with an installation cavity with an opening at one end, and the installation cavity is provided with an installation surface facing the opening;

the circuit board is arranged in the mounting cavity and supported on the mounting surface; and the number of the first and second groups,

and the insulating piece is arranged in an elastic deformable manner and is arranged between the circuit board and the mounting surface in a compression manner.

Optionally, the insulating member is made of a silicone material.

Optionally, a projection area of the insulating member on the mounting surface is not smaller than a projection area of the circuit board on the mounting surface.

Optionally, the insulator has a first side facing the circuit board and a second side facing the mounting surface;

a plurality of elastic bulges are dispersedly distributed on the first side.

Optionally, a part of the second side is recessed towards the first side to form the resilient protrusion at the first side.

Optionally, the mounting surface is convexly provided with a connecting piece;

connecting holes are respectively formed in the circuit board and the insulating part corresponding to the connecting parts, and the connecting parts sequentially penetrate through the connecting holes of the circuit board and the insulating part.

Optionally, the bottom wall and/or the side wall of the mounting cavity are/is provided with a supporting protrusion towards the opening;

the end face of the supporting protrusion constitutes the mounting surface.

Optionally, the outer wall of the base is inwardly domed to define the support boss within the mounting cavity;

and the outer wall of the base is provided with a heat dissipation port communicated to the mounting cavity at the arch.

Optionally, the electromagnetic heating device further comprises:

the shielding piece is arranged in the mounting cavity and divides the mounting cavity into a first cavity and a second cavity which are sequentially distributed in the direction away from the opening;

a plurality of electromagnetic heating components accommodated in the first chamber; and (c) a second step of,

and the electric control component is accommodated in the second chamber.

Optionally, a supporting protrusion is convexly arranged on the cavity wall of the second cavity, and the shielding element and the circuit board are jointly supported on the supporting protrusion; wherein, the first and the second end of the pipe are connected with each other,

the supporting bulge is provided with a supporting surface for supporting the shielding piece, and the protruding height of the supporting surface is smaller than that of the mounting surface; and/or the presence of a gas in the gas,

the shielding part comprises a first plate section and a second plate section which is supported on the supporting protrusion, and the second plate section is bent and extended in the direction away from the first plate section and in the direction away from the opening.

Optionally, the shielding member is provided with a buckling hole along the thickness direction thereof;

the protruding elasticity buckle that is equipped with of diapire of installation cavity, the free end side direction protrusion of elasticity buckle forms the backstop step, the backstop step is used for the elasticity buckle passes when detaining the hole, support in detaining the week side in hole.

Further, to achieve the above object, the present invention also provides a cooking appliance including an electromagnetic heating apparatus, the electromagnetic heating apparatus including:

In the technical scheme provided by the utility model, the insulating piece is elastically deformable and is compressed between the circuit board and the mounting surface, so that elastic propping force is applied to the circuit board and the mounting surface by the insulating piece, the elastic propping force can increase the tight connection between the insulating piece and the mounting surface and prop the circuit board towards the opening, and when the stove panel is arranged at the opening, the circuit board is fully close to the stove panel, thereby being beneficial to increasing the sensitivity of operating the circuit board at the stove panel and improving the use experience of a user; in addition, the insulating part has insulating properties and elasticity simultaneously and pushes up the performance, helps simplifying structure and installation procedure when the circuit board is installed, improves the processing convenience.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is an exploded schematic view of an electromagnetic heating device provided by the present invention;

FIG. 2 is a schematic longitudinal sectional view of the electromagnetic heating apparatus of FIG. 1 from a first perspective;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;

FIG. 4 is a schematic view of the bottom housing and shield assembly of FIG. 1;

FIG. 5 is an enlarged view of the structure at B in FIG. 4;

FIG. 6 is an enlarged view of the structure at C in FIG. 4;

FIG. 7 is a schematic view of the assembly of the insulator of FIG. 1;

FIG. 8 is an enlarged view of the insulator assembly of FIG. 7;

FIG. 9 is an assembly view of the circuit board of FIG. 1;

FIG. 10 is an enlarged schematic view of the circuit board of FIG. 9 assembled;

FIG. 11 is a top perspective view of the base of FIG. 1;

fig. 12 is a bottom perspective view of the base of fig. 1.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

In view of the above, the present invention provides an electromagnetic heating device that can be applied to a household appliance, such as a cooking appliance.

Referring to fig. 1 to 12, an embodiment of an electromagnetic heating device applied to a cooking appliance is shown in the drawings.

It should be noted that, in the present design, a specific application manner of the electromagnetic heating device 1 is not limited, for example, an application orientation of the electromagnetic heating device 1 is not limited, but for convenience of understanding, in the following embodiments, the electromagnetic heating device 1 is set with a heating end facing upward for explanation.

Referring to fig. 1 to 3, an electromagnetic heating apparatus 1 according to the present invention includes a base 100, a circuit board 200, and an insulating member 300. The base 100 is provided with a mounting cavity 110 with an opening 111 at one end, and the mounting cavity 110 is provided with a mounting surface 120 facing the opening 111; the circuit board 200 is arranged in the mounting cavity 110 and supported on the mounting surface 120; the insulating member 300 is elastically deformable, and the insulating member 300 is compressed between the circuit board 200 and the mounting surface 120.

In the technical scheme provided by the utility model, the insulating piece 300 is elastically deformable and is compressed between the circuit board 200 and the mounting surface 120, so that elastic abutting force is applied to the circuit board 200 and the mounting surface 120 by the insulating piece 300, the elastic abutting force can increase the tight connection between the insulating piece 300 and the mounting surface 120 and can abut the circuit board 200 towards the opening 111, when the stove panel 700 is mounted at the opening 111, the circuit board 200 is sufficiently close to the stove panel 700, the sensitivity of operating the circuit board 200 at the stove panel 700 is increased, and the use experience of a user is improved; in addition, the insulating member 300 has both insulating performance and elastic abutting performance, which helps to simplify the structure and the mounting process of the circuit board 200 during mounting, and improves the processing convenience.

In this design, base 100 has relative upper end, the lower extreme that sets up and connects the upper end the lateral wall of lower extreme, the inside of base 100 forms installation cavity 110, the upper end opening 111 of installation cavity 110. It can be understood that the electromagnetic heating device 1 has a heating end as a whole, and the heating end can be used for placing and heating a heated object such as a cooker. In this embodiment, the electromagnetic heating device 1 generally further includes a cooktop panel 700, the cooktop panel 700 is connected with the base 100, and is covered at the opening 111, and the cooktop panel 700 and the base 100 jointly enclose to form the closed installation cavity 110. The cooktop plate 700 constitutes a heating end of the electromagnetic heating device 1. Based on this, the cooking top plate 700 is made of microcrystalline glass, and has sufficient mechanical impact resistance, temperature resistance, high corrosion resistance and the like.

It is understood that the circuit board 200 is generally provided with a triggering element, such as an infrared, capacitance, pressure, or other sensing key, or a mechanical key. When the circuit board 200 is installed in the installation cavity 110, a user needs to trigger the triggering element of the circuit board 200 through a corresponding region of the cooktop panel 700, and therefore, in order to increase the operation sensitivity of the triggering element, the circuit board 200 at least the triggering element needs to be as close to the cooktop panel 700 as possible. The mounting surface 120 protrudes upward from the shield 400, so that the mounting height of the circuit board 200 can be increased, and the upper end surface of the circuit board 200 can be directly or indirectly pressed against the lower end surface of the cooktop panel 700.

Based on this, the setting of insulator 300, can not only separate below electric field etc. right the influence of circuit board 200, simultaneously, because it has elastic deformation performance, be the even spreading of platelike when insulator 300 the installation face 120 with between the circuit board 200, can be in under the precompression state, right each position of circuit board 200 provides balanced ascending elasticity top offset force, makes circuit board 200 hugs closely completely range panel 700.

Can be through right the material of insulating part 300 is selected, makes insulating part 300 has concurrently the elastic property, the material is for example silica gel, rubber etc. and is difficult for electrically conductive, can produce elastic deformation under the exogenic action. In addition, the performance of the materials such as the silica gel is relatively stable, and the circuit board 200 can be protected by flexibly abutting the circuit board 200 and the mounting surface 120; and, materials such as silica gel can cushion external force, have antidetonation effect.

In order to fully insulate the circuit board 200 and apply a uniform and appropriate elastic abutting force to each part of the circuit board 200, in an embodiment, a projection area of the insulating member 300 on the mounting surface 120 is not smaller than a projection area of the circuit board 200 on the mounting surface 120. That is, the insulating member 300 is disposed to cover the entire bottom surface of the circuit board 200.

In one embodiment, the insulating member 300 has a first side facing the circuit board 200 and a second side facing the mounting surface 120; a plurality of elastic protrusions 310 are dispersedly arranged on the first side.

The specific shape, size, etc. of the elastic protrusion 310 are not limited, and the end surface thereof may be planar or arc-surface; the heights of the plurality of elastic protrusions 310 may be set to be the same or at least partially different. When the heights of the elastic bumps 310 are different at least partially, the protruding height of each elastic bump 310 can be determined specifically according to the magnitude of the abutting force required by the circuit board 200 at the corresponding position. The arrangement of the elastic protrusions 310 on the insulating member 300 is not limited, and may be arranged in an array, a radial arrangement, a spiral arrangement, or the like.

The elastic lug 310 can be directly arranged on the insulating piece 300 body in a protruding manner and is in a solid state; alternatively, in one embodiment, a portion of the second side is recessed toward the first side to form the elastic protrusion 310 on the first side. That is, the elastic protrusion 310 has a concave space at the second side, and the concave space can be avoided when the elastic protrusion 310 receives an external force, so that the elastic protrusion 310 can also increase the deformation amount by displacing relative to the concave space, thereby enhancing the elastic deformation capability of the elastic protrusion 310 and optimizing the elastic abutting effect.

In one embodiment, the bottom wall and/or the side wall of the mounting cavity 110 is provided with a supporting protrusion 140 facing the opening 111; the end surfaces of the support protrusions 140 constitute the mounting surface 120. It is understood that the support protrusions 140 provide an upward supporting force to the circuit board 200 and elevate the circuit board 200 to a desired height, so that the amount of elastic deformation of the insulating member 300, for example, the thickness of the insulating member 300, can be adjusted according to actual needs.

In addition, referring to fig. 11 to 12, in one embodiment, the outer wall of the base 100 is arched inward to define the supporting protrusion 140 in the installation cavity 110; the outer wall of the base 100 is provided with a heat sink 150 communicating with the mounting cavity 110 at the arch. The arching arrangement can form the supporting protrusions 140 at a predetermined position, and can reduce the wall thickness of the supporting protrusions 140, so that the wall thickness of the base 100 at the installation cavity 110 is as uniform as possible.

The heat dissipation opening 150 is directly arranged at the arch, and the air volume of the heat dissipation opening 150 can be increased by means of the gap formed by the outer wall of the bottom wall at the arch, and the circuit board 200 can be dissipated with pertinence, which is beneficial to enhancing the heat dissipation effect.

The number of the heat dissipation openings 150 may be one or more than one, wherein when the number of the heat dissipation openings 150 is multiple, the arrangement of the plurality of the heat dissipation openings 150 is not limited, and may be an array arrangement, a grid arrangement, a radial arrangement, or other arrangements; the plurality of heat dissipation openings 150 may be configured in the same size and shape, for example, each may be configured as a rectangular hole or a circular hole; of course, the size and shape of the plurality of heat dissipation openings 150 may be at least partially different.

In addition, in an embodiment, the outer wall of the base 100 may further include a reinforcing rib at the arch to increase the strength of the arch. The reinforcing ribs can be distributed at intervals along the length direction of the arch.

Referring to fig. 4 to 10, in an embodiment, the mounting surface 120 is convexly provided with a connecting member 130; connecting holes are respectively formed in the circuit board 200 and the insulating member 300 corresponding to the connecting member 130, and the connecting member 130 sequentially passes through the connecting holes of the circuit board 200 and the insulating member 300.

Specifically, the connecting members 130 may be pin-shaped structures protruding from the mounting surface 120, and at least two connecting members 130 may be arranged at intervals along at least one dimension of the mounting surface 120. For easy understanding, the connection hole of the circuit board 200 is defined as a first connection hole 210, the connection hole of the insulating member 300 is defined as a second connection hole 320, and the first connection hole 210 and the second connection hole 320 are one or more holes adapted to the connection member 130.

In addition, the cross-sectional shape of the connecting member 130 may be circular, oval, quasi-circular, polygonal, or other irregular shapes, wherein when the cross-sectional shape of the connecting member 130 has an angular shape, such as a polygonal shape, the relative rotation between the connecting member 130 and the connecting holes may be limited when the connecting member is inserted into the first connecting hole 210 and the second connecting hole 320.

Specifically, referring to fig. 4 and 6, the connecting member 130 can be connected to the mounting surface 120. The connecting member 130 and the mounting surface 120 may be integrally formed or may be separately assembled. When the connecting member 130 and the mounting surface 120 are assembled separately, there are various assembling methods, such as snap-fit fixing, adhesive fixing, and suction fixing. Then, referring to fig. 7 and 8, when the insulating member 300 is mounted to the mounting surface 120, each of the plug-in connectors is inserted into each of the second connecting holes 320. Referring to fig. 9 to 10, when the circuit board 200 is mounted to the insulating member 300, each of the plug connectors is inserted into each of the first connecting holes 210, and the circuit board 200 is pressed on the insulating member 300.

Based on any of the above embodiments, referring to fig. 1, the electromagnetic heating apparatus 1 further includes a shielding element 400, a plurality of electromagnetic heating components 500, and an electric control component 600, wherein the shielding element 400 is disposed in the installation cavity 110 and divides the installation cavity 110 into a first chamber 112 and a second chamber 113 sequentially arranged in a direction away from the opening 111; a plurality of electromagnetic heating components 500 are accommodated in the first chamber 112; the electric control part 600 is accommodated in the second chamber 113.

The shielding member 400 may be a component capable of shielding at least one of an influence of a magnetic field, an influence of an electric field, or an influence of a thermal field, which is ineffective between the electric control member 600 and the electromagnetic heating member 500. Specifically, for example, the shield 400 may be used to shield against back heating, and the like. The shielding member 400 may be made of aluminum or the like.

The shielding member 400 is generally disposed in a plate shape, and can be designed into any shape according to actual needs, such as a circle, a circle-like shape, an ellipse, a polygon, or a special shape. Of course, the shield 400 may be partially bent or deformed such as concave-convex according to the installation environment. The shielding member 400 may be set to have a uniform wall thickness, or may be set to have a thickened thickness in a local region with a large shielding requirement, or to have a thinned thickness or a hollowed-out thickness in a local region with a small shielding requirement.

The electromagnetic heating device 1 is provided with an electromagnetic heating component 500, and the electromagnetic heating component 500 may be any component capable of achieving an electromagnetic heating function, such as a coil disc formed in different shapes and different winding manners. The electromagnetic heating components 500 are all arranged in the first chamber 112 and are dispersedly distributed along the horizontal direction to form a plurality of heating regions for heating different parts of the same pot or a plurality of pots corresponding to one.

The electronic control component 600 is received in the second chamber 113 and is generally fixedly coupled to the base 100. The connection mode between the electronic control component 600 and the base 100 is not limited, and may be one or more of a screw fastening mode, a snap fastening mode, an adhesive fastening mode, and the like.

Since the electric control member 600, the shield 400 and the electromagnetic heating member 500 are all accommodated in the mounting cavity 110, the thicknesses of the three are offset by the thickness of the base 100, and the layout of the three is ensured to be more compact.

Based on any of the above embodiments, the installation manner between the shielding element 400 and the base 100 is not limited, but in order to simplify the installation structure and the installation process of the shielding element 400, referring to fig. 3, in an embodiment, a protruding rib for supporting and fixing the shielding element 400 is protruded from a bottom wall and/or a side wall of the installation cavity 110, and the protruding rib separates the shielding element 400 from the bottom wall of the installation cavity 110 to define the second cavity 113.

The number of the ribs and the projection area on the bottom wall of the mounting cavity 110 need to be set within a reasonable range, and if the space occupation ratio of the ribs in the second chamber 113 is too large, the mounting space of the electronic control component 600 is compressed; on the contrary, if the space occupation ratio of the rib in the second chamber 113 is too small, the supporting capability of the shielding member 400 is weakened, and the components such as the shielding member 400 and the electromagnetic heating member 500 are not stably mounted.

Specifically, in an embodiment, the ribs may respectively extend from the side wall of the mounting cavity 110 to the middle of the mounting cavity 110 and/or extend upward from the bottom wall near the periphery of the mounting cavity 110, and the ribs may be arranged at intervals along the circumference of the mounting cavity 110 to support the whole circumference of the shielding element 400. It should be noted that, when the ribs are respectively connected to the side wall and the bottom wall of the mounting cavity 110, the ribs simultaneously form the reinforcing ribs of the base 100, so as to increase the overall strength of the base 100.

Of course, in another embodiment, the rib may also be disposed at the middle region of the bottom wall of the mounting cavity 110 to increase the upward supporting force of the middle portion of the shielding member 400.

The convex ribs can be set to have different heights, different cross-sectional shapes with different cross-sectional areas, different materials and the like according to actual needs, and the position is not limited.

Of course, the supporting protrusions 140 may be used for supporting and fixing the circuit board 200 alone, or used for supporting and fixing the circuit board 200 and other components, and specifically, for example, the supporting protrusions 140 may constitute the above-mentioned ribs at the same time. In one embodiment, the shielding element 400 does not extend horizontally to the entire horizontal plane of the mounting cavity 110, but at least one side edge of the shielding element is spaced from the corresponding side wall of the mounting cavity 110, the supporting protrusion 140 has a supporting surface 141 for supporting the shielding element 400, and a mounting surface 120 for supporting the circuit board 200, and the mounting surface 120 is disposed to extend upward through the space and protrude from the shielding element 400.

Further, referring to fig. 6, in an embodiment, the protruding height of the supporting surface 141 is smaller than the protruding height of the mounting surface 120, so that when the shielding element 400 is supported on the supporting surface 141, the height of the supporting surface 141 does not exceed the height of the mounting surface 120, and interference on the installation of the circuit board 200 and the insulating element 300 on the mounting surface 120 is avoided; and/or the shielding element 400 comprises a first plate segment 410 and a second plate segment 420 supported on the supporting protrusion 140, wherein the second plate segment 420 extends in a bending manner in a direction away from the first plate segment 410 and in a direction away from the opening 111. The bent and extended arrangement of the second plate segment 420 can also reduce the height of the shielding element 400 on the supporting surface 141, and avoid interference with the installation of the circuit board 200 and the insulating element 300 on the installation surface 120.

In the above, by using one support protrusion 140 to support and fix two or more components at the same time, on one hand, the structure and processing of the support protrusion 140 can be simplified, and on the other hand, multiple components sharing the support protrusion 140 can be adjacent to each other to increase the layout compactness between the components.

Further, in an embodiment, a bottom wall of the mounting cavity 110 and/or an end of the electromagnetic heating component 500 facing the shielding member 400 is provided with a convex portion; the shielding member 400 is provided with a concave portion corresponding to the convex portion, and the concave portion is in concave-convex connection with the convex portion.

Specifically, referring to fig. 4 to 5, in an embodiment, the recess includes a fastening hole 430 penetrating through the shielding element 400 in a thickness direction; the protrusion includes an elastic clip 160 protruding from the bottom wall of the mounting cavity 110, and when the elastic clip 160 passes through the fastening hole 430, the elastic clip can be fastened and connected with the fastening hole 430.

The specific expression form of the elastic buckle 160 is not limited, and may be a cylindrical structure made of an elastic material, or may be provided with two elastic arms including a cylindrical body and arranged at an interval, and the same end of the two elastic arms and the cylindrical body may be turned or deformed in directions approaching and departing from each other when driven by an external force.

In addition, since the rib can provide an upward supporting force for the shielding element 400, further, the free end of the elastic clip 160 protrudes laterally to form the stopping step 161, and the stopping step 161 forms a downward step surface, when the free end of the elastic clip 160 is in a natural state, the dimension of at least one direction of the step surface is larger than the aperture of the fastening hole 430, so that when the elastic clip 160 passes through the fastening hole 430, the step surface can be supported on the peripheral side of the fastening hole 430, the shielding element 400 is limited from being separated from the elastic clip 160 upwards, and the installation stability of the shielding element 400 is increased.

The elastic clip 160 may be provided in one or more, and the clip hole 430 may be adapted to the arrangement of the elastic clip 160. When the two elastic buckles 160 are provided, the two elastic buckles 160 may be provided corresponding to two opposite sides of the shield 400; when the number of the elastic buckles 160 is two or more, the elastic buckles may be arranged along the circumferential direction of the shielding member 400 and at least arranged corresponding to each side of the shielding member 400.

The concave part comprises a positioning hole which penetrates through the shielding piece 400 in the thickness direction, the convex part comprises a positioning column which protrudes downwards from the electromagnetic heating device 1, and the positioning column penetrates through the positioning hole downwards, so that the accurate installation position of the electromagnetic heating part 500 on the shielding piece 400 can be ensured.

The utility model also provides a cooking appliance comprising an electromagnetic heating device 1 as described above. It is understood that the electromagnetic heating apparatus 1 may directly constitute the electromagnetic cooking appliance, or may be one of the components of the electromagnetic cooking appliance, for example, when the cooking appliance combines a plurality of devices having a plurality of functions, the electromagnetic heating apparatus 1 constitutes one of the plurality of devices.

It should be noted that, for the detailed structure of the electromagnetic heating device 1 in the cooking appliance, reference may be made to the embodiment of the electromagnetic heating device 1, and details are not described herein again; since the electromagnetic heating device 1 is used in the cooking appliance of the present invention, the embodiment of the cooking appliance of the present invention includes all technical solutions of all embodiments of the electromagnetic heating device 1, and the achieved technical effects are completely the same, and are not described herein again.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the technical solutions of the present invention, which are made by using the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. An electromagnetic heating device, comprising:

the insulating piece is arranged in an elastic deformable mode and is arranged between the circuit board and the mounting surface in a compressed mode;

the mounting surface is convexly provided with a connecting piece;

and connecting holes are respectively formed in the circuit board and the insulating part corresponding to the connecting pieces in a penetrating manner, and the connecting pieces sequentially penetrate through the connecting holes of the circuit board and the insulating part.

2. The electromagnetic heating device of claim 1, wherein said insulating member is made of a silicone material.

3. The electromagnetic heating apparatus according to claim 1, wherein a projected area of said insulating member on said mounting surface is not smaller than a projected area of said circuit board on said mounting surface.

4. The electromagnetic heating apparatus of claim 1, wherein said insulating member has a first side facing said circuit board and a second side facing said mounting surface;

a plurality of elastic bulges are distributed on the first side in a dispersed manner.

5. Electromagnetic heating device according to claim 4, characterized in that a part of said second side is recessed towards said first side to form said elastic bulge at said first side.

6. Electromagnetic heating device according to claim 1, characterised in that the bottom wall and/or the side walls of said installation cavity are provided with supporting projections towards said opening;

the end face of the supporting protrusion constitutes the mounting surface.

7. The electromagnetic heating device of claim 6, wherein an outer wall of said base is inwardly arched to define said support boss within said mounting cavity;

8. The electromagnetic heating apparatus according to claim 1, characterized in that the electromagnetic heating apparatus further comprises:

a plurality of electromagnetic heating components accommodated in the first chamber; and the number of the first and second groups,

and the electric control component is accommodated in the second chamber.

9. The electromagnetic heating apparatus according to claim 8, wherein a supporting projection is provided on the wall of the second chamber, and the shield and the circuit board are supported on the supporting projection; wherein the content of the first and second substances,

10. The electromagnetic heating apparatus according to claim 8, wherein said shield member has a snap hole formed therethrough in a thickness direction thereof;

11. A cooking appliance comprising an electromagnetic heating device as claimed in any one of claims 1 to 10.