CN221202796U - Heating device and cooking utensil - Google Patents

Abstract

The utility model discloses a heating device and a cooking utensil, wherein the heating device comprises a shell, at least one electric component and a fan component, wherein an air inlet and an air outlet are formed in the shell; the electric component is arranged in the shell and comprises an electromagnetic heating component, the electromagnetic heating component comprises a bracket and a coil unit, the bracket is provided with a first side and a second side which are oppositely arranged in a first direction, the coil unit comprises a plurality of turns of coils, each turn of coils comprises a first wire segment and a second wire segment which are mutually connected and have opposite currents, and each turn of coils is wound and arranged on the first side and the second side of the bracket, so that the first side of the bracket is provided with a plurality of first wire segments, and the second side of the bracket is provided with a plurality of second wire segments; through setting up fan subassembly in the casing, blow to electromagnetic heating subassembly for electromagnetic heating subassembly's heat dissipation to make electromagnetic heating subassembly work in-process can the temperature rise not exceed standard.

Description

Heating device and cooking utensil

Technical Field

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

Background

The winding mode of the conventional wire coil is unilateral winding and is limited by working parameters such as working current and frequency, the heating height of the wire coil after being coupled with a cooker is low, vortex can be generated at the bottom of the cooker, the area beyond an electromagnetic heating coil such as the position of a cooker wall cannot be heated, the bottom of the cooker is hot and the cooker wall is cool, the bottom and the side of the cooker to be heated can be heated by the conventional electromagnetic oven, three-dimensional heating is realized, a cooker panel is arranged to be matched with the cooker in a cambered shape, the electromagnetic oven is correspondingly made into a cambered surface, and the cooker is difficult to be compatible with types of different radians or pans, so that the market acceptance is low.

Disclosure of utility model

According to the utility model, aiming at the technical problems, the winding mode of the electromagnetic heating coil is considered to be improved, the winding can be wound on the first side and the second side of the wire coil, the heating height after being coupled with the cookware is improved, the side wall of the cookware on the first side of the wire coil can be heated by the coupling magnetic field, and the heating quantity of the wire coil is higher than that of a conventional wire coil because the winding is also arranged on the reverse side of the wire coil. How to realize three-dimensional heating of the side wall of the cooker and also ensure that the temperature rise is not out of standard is a further problem facing the design.

To achieve the above object, the present utility model provides a heating device, wherein the heating device includes:

the shell is provided with an air inlet and an air outlet;

At least one electrical component disposed within the housing, the electrical component comprising an electromagnetic heating component, the electromagnetic heating component comprising a bracket having a first side and a second side disposed opposite in a first direction, and a coil unit comprising a plurality of turns of a coil, each turn of the coil comprising a first wire segment and a second wire segment connected to each other and having opposite currents, each turn of the coil being wound around the first side and the second side of the bracket such that the first side of the bracket has a plurality of the first wire segments and the second side of the bracket has a plurality of the second wire segments; and

The fan assembly is arranged in the shell and used for blowing air to the electromagnetic heating assembly so as to radiate heat.

Optionally, the electrical components are provided in plurality, and the plurality of electrical components further comprises a circuit board assembly, and the circuit board assembly is provided in the housing;

The fan assembly is also used for blowing the circuit board assembly.

Optionally, the fan assembly includes a fan and a casing, and two fan outlets are disposed on the casing corresponding to the electromagnetic heating assembly and the circuit board assembly.

Optionally, the circuit board assembly is located on a peripheral side of the electromagnetic heating assembly;

The periphery of the shell is provided with the two fan outlets.

Optionally, the fan includes an axial flow fan, and a rotation shaft of the axial flow fan extends along the first direction;

The casing is including setting up the side wall on the bottom of casing and lid close the apron that the side wall set up, the apron is in the position that corresponds the fan export is equipped with the guide plate, the guide plate is followed the edge orientation of fan export is skew the direction of fan export extends.

Optionally, the air guide plate includes a first air guide plate, and the first air guide plate extends from an edge of the fan outlet corresponding to the electromagnetic heating assembly towards the direction of the air outlet corresponding to the electromagnetic heating assembly; and/or the number of the groups of groups,

The air guide plate comprises a second air guide plate, and the second air guide plate extends from the edge of the fan outlet corresponding to the circuit board assembly towards the direction of the air outlet corresponding to the circuit board assembly.

Optionally, a third guide plate is further arranged on the second guide plate, and extends from the edge of the second guide plate corresponding to the circuit board assembly towards the electromagnetic heating assembly.

Optionally, the second baffle is concavely provided with a mounting groove for mounting the display panel assembly.

Optionally, a flow guiding channel is further arranged in the shell, and the electrical component and the fan component are located on the flow guiding channel.

Optionally, an air guide rib structure is arranged in the shell, and the air guide rib structure defines the flow guide channel.

Optionally, the electromagnetic heating assembly further includes a shielding member disposed on a second side of the support and located on a side of the plurality of second wire segments opposite to the support, and an air-passing hollow portion is disposed on the shielding member.

Optionally, the shield comprises:

a shielding main body part which is arranged on the second side of the bracket and is positioned on one side of the plurality of second wire segments, which is opposite to the bracket; and

A shield side portion extending from the shield main body portion to a first side of the bracket, the shield side portion being located outside an outer periphery of the bracket;

the shielding main body part and/or the shielding side part is/are provided with the over-wind hollowed-out part.

Optionally, a plurality of heat dissipation holes are formed in the shielding main body part to form the over-wind hollowed-out part; and/or the number of the groups of groups,

The shielding lateral part is provided with a notch to form the over-wind hollowed-out part.

The utility model also provides a cooking appliance comprising a heating device comprising:

the shell is provided with an air inlet and an air outlet;

At least one electrical component disposed within the housing, the electrical component comprising an electromagnetic heating component, the electromagnetic heating component comprising a bracket having a first side and a second side disposed opposite in a first direction, and a coil unit comprising a plurality of turns of a coil, each turn of the coil comprising a first wire segment and a second wire segment connected to each other and having opposite currents, each turn of the coil being wound around the first side and the second side of the bracket such that the first side of the bracket has a plurality of the first wire segments and the second side of the bracket has a plurality of the second wire segments; and

The fan assembly is arranged in the shell and used for blowing air to the electromagnetic heating assembly so as to radiate heat.

Optionally, the magnetic fields generated by the plurality of first wire segments are used for coupling with the bottom of the piece to be heated placed on the first side of the bracket, and are also used for coupling with the side wall portion of the piece to be heated so as to heat the side wall portion of the piece to be heated.

According to the technical scheme provided by the utility model, in the two side end areas of the first side of the support, the magnetic induction lines generated by each first wire segment extend from one side end of the working area along the first side to the direction away from the plurality of first wire segments, and then extend to the other side end of the working area to form a closed magnetic field, so that the magnetic fields formed by the plurality of first wire segments extend to the periphery of the outer side end areas of the plurality of first wire segments on one side, so that the magnetic field areas are wider, and extend to the outer side of the first side of the plurality of first wire segments to have a higher magnetic field distribution area, and therefore, when the heating container is heated, the magnetic induction lines can extend to the side wall of the pot to heat the side of the pot, a strong heating effect can be generated on the side wall of the pot placed above the working surface of the wire disc component, the plurality of first wire segments on the first side of the support can generate heat on the other side when the magnetic field is electrified, and the electromagnetic wire segments to be coupled with a piece to be heated can be heated, and the electromagnetic fan can heat the electromagnetic component can be heated in the second side of the support when the electromagnetic component is electrified, so that the electromagnetic component can heat can not heat the electromagnetic component can heat in the electromagnetic component.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

Fig. 1 to 3 are schematic views of an electromagnetic heating cooking device of the prior art;

FIG. 4 is a schematic perspective view of an electromagnetic heating assembly according to the present utility model;

FIG. 5 is a perspective view of an electromagnetic heating assembly according to another aspect of the present utility model;

FIG. 6 is a schematic diagram of the current direction of the coil unit in FIG. 4;

FIG. 7 is a schematic diagram of the magnetic field distribution of the electromagnetic heating assembly of FIG. 4;

Fig. 8 is a schematic cross-sectional view of an embodiment of a cooking appliance provided by the present utility model;

FIG. 9 is a schematic view illustrating an internal structure of an embodiment of a heating device according to the present utility model;

FIG. 10 is a schematic cross-sectional view of the heating device of FIG. 9;

FIG. 11 is a perspective view of the blower assembly of FIG. 9;

FIG. 12 is a schematic view showing the internal structure of another embodiment of the heating device according to the present utility model;

FIG. 13 is a schematic view of an embodiment of the cover plate of FIG. 12;

FIG. 14 is a schematic view showing the internal structure of a heating device according to another embodiment of the present utility model;

FIG. 15 is a schematic view of another embodiment of the cover plate of FIG. 14;

FIG. 16 is a schematic perspective view of the electromagnetic heating assembly of FIG. 9;

Fig. 17 is a perspective view of the electromagnetic heating assembly of fig. 9 from another perspective.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The conventional wire coil is wound on a single side, referring to fig. 1 to 3, the conventional single side winding is limited by working parameters such as working current and frequency, and the heating height of the wire coil after being coupled with a cooker is low, eddy current can only be generated at the bottom of the cooker, and the area beyond an electromagnetic heating coil such as the position of the cooker wall can not be heated, so that the bottom of the cooker is hot and the cooker wall is cool. In order to improve the heating effect of the wire coil on the side wall of the pot, the inventor thinks that the winding mode of the electromagnetic heating coil is improved, the winding can be wound on the first side and the second side of the wire coil, the heating height after being coupled with the pot is improved, the side wall of the pot on the first side of the wire coil can be heated by the coupling magnetic field, and the winding is also arranged on the back side of the wire coil, so that the heating quantity of the wire coil is higher than that of a conventional wire coil.

In order to solve the above problems, the present utility model provides a heating device, and fig. 1 to 3 are schematic diagrams of an electromagnetic heating cooking device in the prior art; FIG. 4 is a schematic perspective view of an electromagnetic heating assembly according to the present utility model; FIG. 5 is a perspective view of an electromagnetic heating assembly according to another aspect of the present utility model;

FIG. 6 is a schematic diagram of the current direction of the coil unit in FIG. 4; FIG. 7 is a schematic diagram of the magnetic field distribution of the electromagnetic heating assembly of FIG. 4; fig. 8 is a schematic cross-sectional view of an embodiment of a cooking appliance provided by the present utility model;

FIG. 9 is a schematic view illustrating an internal structure of an embodiment of a heating device according to the present utility model; FIG. 10 is a schematic cross-sectional view of the heating device of FIG. 9; FIG. 11 is a perspective view of the blower assembly of FIG. 9; FIG. 12 is a schematic view showing the internal structure of another embodiment of the heating device according to the present utility model; FIG. 13 is a schematic view of an embodiment of the cover plate of FIG. 12; FIG. 14 is a schematic view showing the internal structure of a heating device according to another embodiment of the present utility model; FIG. 15 is a schematic view of another embodiment of the cover plate of FIG. 14; FIG. 16 is a schematic perspective view of the electromagnetic heating assembly of FIG. 9; fig. 17 is a perspective view of the electromagnetic heating assembly of fig. 9 from another perspective.

Referring to fig. 4 to 9, the heating device 100 includes a housing 1, at least one electrical component and a fan component 3, wherein an air inlet 1a and an air outlet 1b are provided on the housing 1; the electrical component is arranged in the shell 1, the electrical component comprises an electromagnetic heating component 2, the electromagnetic heating component 2 comprises a bracket 21 and a coil unit 22, the bracket 21 is provided with a first side and a second side which are oppositely arranged in a first direction, the coil unit 22 comprises a plurality of turns of coils, each turn of the coils comprises a first wire segment 221 and a second wire segment 222 which are mutually connected and have opposite currents, and each turn of the coils is wound and installed on the first side and the second side of the bracket 21, so that the first side of the bracket 21 is provided with a plurality of the first wire segments 221, and the second side of the bracket 21 is provided with a plurality of the second wire segments 222; the fan assembly 3 is disposed in the housing 1, and is configured to blow air to the electromagnetic heating assembly 2, so as to dissipate heat of the electromagnetic heating assembly.

It will be appreciated that, in the housing 1, an air supply duct is formed on the inner wall of the housing 1 to communicate the air inlet 1a and the air outlet 1b, and when the blower assembly 3 blows air to the electromagnetic heating assembly 2, an air flow flowing from the air inlet 1a to the air outlet 1b is formed in the housing 1. And generally, when the electromagnetic heating assembly 2 is installed, the electromagnetic heating assembly 2 is installed as close to a side where a panel or a piece 200 (pot) to be heated is installed as possible, a gap is formed between the electromagnetic heating assembly 2 and the bottom of the housing 1, so that two heat dissipation channels are formed on the outer sides of two side portions of the electromagnetic heating assembly 2, and when the fan assembly 3 blows air to the electromagnetic heating assembly 2, air flows through the heat dissipation channels on the peripheral side of the electromagnetic heating assembly 2, so that part of heat generated by the plurality of first wire segments 221 and the plurality of second wire segments 222 is taken away.

In the technical scheme provided by the utility model, in the two side end areas of the first side of the bracket 21, the magnetic induction lines generated by each first wire segment 221 extend from one side end of the working area along the first side to the direction far away from the plurality of first wire segments 221, and then extend to the other side end of the working area to form a closed magnetic field, so that one side of the magnetic field formed by the plurality of first wire segments 221 extends to the periphery of the outer side end area of the plurality of first wire segments 221 to have a wider magnetic field area, and extend to the outside of the first side of the plurality of first wire segments 221 to have a higher magnetic field distribution area, thereby being capable of heating the side part of the pot in a wider area at the bottom of the heating container, and being capable of extending to the side wall of the pot, thereby being capable of generating a stronger heating effect on the side wall of the pot placed above the working surface of the wire disc component, so that the plurality of first wire segments 221 on the first side of the bracket 21 are to generate heat to be generated by themselves when being electrified, and the wire segments 200 are coupled with the electromagnetic fan 200 are to be heated, and the electromagnetic component 200 is also capable of generating heat to be heated in the second electromagnetic component 2 when the electromagnetic component is heated, and the electromagnetic component is heated 2 is heated, and the electromagnetic component is not heated, and the electromagnetic component is heated 2 is heated in the electromagnetic component is heated at the side 2.

It will be appreciated that because the operation of the electromagnetic heating assembly 2 is controlled electrically by means of the circuit board assembly 4, the electronic components on the circuit board assembly 4 generate heat during operation of the heating device 100. If not effectively controlled and dissipated, the heat can cause the temperature of the circuit board and the surrounding environment to rise, thereby affecting the working performance and reliability of the circuit board, and even possibly causing damage to the circuit board or causing safety problems. Therefore, in order to ensure that the circuit board can work normally and stably, an effective heat dissipation design is required for the circuit board. Thus, in the present embodiment, the electrical components are provided in plurality, the plurality of electrical components further including the circuit board assembly 4, the circuit board assembly 4 being provided within the housing 1; the fan assembly 3 is also used for blowing air to the circuit board assembly 4. So, fan subassembly 3 is except dispelled the heat to electromagnetic heating subassembly 2, is dispelled the heat to circuit board subassembly 4 simultaneously, has effectively reduced two-sided heating the temperature rise on electromagnetic heating subassembly 2 positive and negative surface, has also realized the heat dissipation to the circuit board simultaneously, has saved the cost of a heat dissipation fan 31.

In this embodiment, referring to fig. 9, 12 and 14, the fan assembly 3 includes a fan 31 and a housing 32, and two fan outlets 32a are disposed on the housing 32 corresponding to the electromagnetic heating assembly 2 and the circuit board assembly 4. It will be appreciated that two air outlets 1b may be provided corresponding to the electromagnetic heating assembly 2 and the circuit board assembly 4, so that a heat dissipation flow channel is formed between one air outlet 32a and one air outlet 1b, another heat dissipation flow channel is formed between the other air outlet 32a and the other air outlet 1b, and the electromagnetic heating assembly 2 and the circuit board assembly 4 are respectively located on the respective heat dissipation flow channels, so that the electromagnetic heating assembly 2 and the circuit board assembly 4 can fully dissipate heat.

In this embodiment, referring to fig. 11, the circuit board assembly 4 is located on the peripheral side of the electromagnetic heating assembly 2; the two fan outlets 32a are provided on the peripheral side of the casing 32. In this way, the electromagnetic heating assembly 2 and the circuit board assembly 4 are tiled at the bottom of the casing 1, so as to reduce the thickness of the heating device 100, and the two fan outlets 32a are reasonably arranged according to the positions of the two electrical assemblies, so that the air flow sent out by each fan outlet 32a can have more directionality.

In the prior art, a centrifugal radiator fan or an axial flow radiator fan is generally selected as the radiator fan 31, and in an installation environment where a relatively flat shape is required, the centrifugal radiator fan is generally selected, the fan blade of the centrifugal radiator fan is generally designed to be installed radially, the shape of the centrifugal radiator fan is generally flat, and the axial flow fan is installed along the axial direction, and the shape of the axial flow fan is relatively thick. However, in terms of noise and wind volume and pressure, since the fan blades of the centrifugal radiator fan are radially installed, it brings about loud noise during operation, and the wind volume and pressure are relatively small. The fan blades of the axial flow cooling fan are arranged along the axial direction, so that noise generated during operation is relatively small, more air can be moved under the same condition, and a better cooling effect is achieved.

In this embodiment, referring to fig. 11 to 15, in order to make the heating device 100 have a better heat dissipation effect, the fan 31 includes an axial fan 31, and a rotation axis of the axial fan 31 extends along the first direction. However, since the air outlet direction of the axial flow fan 31 is along the axial direction of the fan blade, that is, the air outlet direction is different from the heat dissipation direction required by the electromagnetic heating assembly 2 and the circuit board assembly 4, in order to better utilize the air outlet amount of the axial flow fan 31, the casing 32 includes a side 321 disposed on the bottom of the casing 1, and a cover plate 322 covering the side wall 321, and the cover plate 322 is provided with a baffle 33 at a position corresponding to the fan outlet 32a, and the baffle 33 extends from the edge of the fan outlet 32a toward a direction deviating from the fan outlet 32 a. Since the baffle 33 is disposed at the fan outlet 32a, the baffle 33 can guide the air flowing out of the axial flow fan 31 to flow along the extending direction of the baffle 33, and thus, the air flowing out direction can flow according to a set path by the inner wall of the casing 32 and the guide of the baffle 33.

In this embodiment, referring to fig. 13, the baffle 33 includes a first baffle 331, and the first baffle 331 extends from an edge of the fan outlet 32a corresponding to the electromagnetic heating assembly 2 toward the air outlet 1b corresponding to the electromagnetic heating assembly 2. It will be appreciated that the first baffle 331 is disposed obliquely, and is inclined from the edge of the fan outlet 32a toward the first side away from the bracket 21 in the direction approaching the electromagnetic heating assembly 2, so that a part of the air flow generated by the axial flow fan 31 can be directed to the upper side of the electromagnetic heating assembly 2.

In this embodiment, referring to fig. 14 to 15, the baffle 33 includes a second baffle 332, and the second baffle 332 extends from an edge of the fan outlet 32a corresponding to the circuit board assembly 4 toward the air outlet 1b corresponding to the circuit board assembly 4. So configured, the second baffle 332 may direct a portion of the airflow generated by the axial fan 31 toward the circuit board assembly 4.

In this embodiment, a third baffle 333 is further disposed on the second baffle 332, and the third baffle 333 extends from the edge of the second baffle 332 corresponding to the circuit board assembly 4 toward the electromagnetic heating assembly 2. Because the heat generated by the circuit board assembly 4 is not larger than the heat generated by the electromagnetic heating assembly 2, and the thickness of the circuit board assembly 4 is not as thick as the electromagnetic heating assembly 2, after the air generated by the axial flow fan 31 flows through the circuit board assembly 4, part of the air flow can be utilized to dissipate the heat of the electromagnetic heating assembly 2 with larger heat, and the third flow guide plate 333 well guides the air flow guided by the second flow guide plate 332 to dissipate the heat of the circuit board assembly 4, and then the air flow continuously dissipates the heat of the electromagnetic heating assembly 2 through the electromagnetic heating assembly 2.

In this embodiment, referring to fig. 15, the second baffle 332 is recessed with a mounting groove 332a for mounting the display panel assembly. In this way, the second baffle 332 provides the mounting component for the display panel assembly in addition to the flow guiding function, thereby saving the manufacturing cost of the mounting component.

It should be noted that, the first baffle 331, the second baffle 332, and the third baffle 333 may be integrally formed with the cover plate 322, so that each baffle can be installed in place while the cover plate 322 is installed, thereby saving installation procedures and procedures.

Because the fan assembly 3 is disposed in the housing 1, the air flow generated by the fan assembly 3 flows in a space formed by enclosing the inner wall of the housing 1, so that the heat dissipation of the fan assembly 3 is more targeted, in this embodiment, a flow guiding channel is further disposed in the housing 1, and the electrical assembly and the fan assembly 3 are disposed on the flow guiding channel. The air guide channel may be an inner shell which is separately disposed in the casing 1, and the inner shell encloses to form the air guide channel, or of course, a plurality of air deflectors may be disposed in the casing 1, and the plurality of air deflectors and the inner wall of the casing 1 enclose together to form the air guide channel, which may be specifically designed according to practical situations, and this embodiment of the present disclosure is not limited.

In this embodiment, referring to fig. 9, an air guiding rib structure 5 is disposed in the housing 1, and the air guiding rib structure 5 defines the air guiding channel. It is to be appreciated that the wind-guiding rib structure 5 includes a first wind-guiding rib section and a second wind-guiding rib section, the first wind-guiding rib section and the second wind-guiding rib section are respectively disposed on the periphery of the fan assembly 3, the first wind-guiding rib section extends from the outer side of the fan assembly 3 towards the air outlet 1b corresponding to the electromagnetic heating assembly 2, and the second wind-guiding rib section extends from the outer side of the fan assembly 3 towards the air outlet 1b corresponding to the circuit board heating assembly, so that the first wind-guiding rib section, the second wind-guiding rib section and the inner wall surface of the casing 1 can be jointly enclosed to form the air-guiding channel, the fan assembly 3 is disposed at the air inlet end of the air-guiding channel, the two air outlets 1b are disposed at the air outlet end of the air-guiding channel, and the electrical assembly and the fan assembly 3 are disposed on the air-guiding channel.

When the first wire segment 221 and the second wire segment 222 are energized, the first wire segment 221 is coupled with a pot disposed on the working side of the first side of the support 21 to heat the pot, when the electromagnetic heating structure is disposed in the electromagnetic oven and the supporting table is a metal table, the electromagnetic field of the second wire segment 222 diffuses toward the metal table to heat the metal table, or when the side of the second wire segment 222 facing away from the support 21 is provided with the circuit board assembly 4, the circuit board assembly 4 is heated, in this embodiment, referring to fig. 16 to 17, the electromagnetic heating assembly 2 further includes a shielding member 23 disposed on the second side of the support 21 and on the side of the plurality of second wire segments 222 facing away from the support 21. The shielding member 23 can prevent the second wire segment 222 from generating magnetic field, prevent the magnetic field from leaking to the outside, and avoid coupling inductance between the non-working side of the electromagnetic heating assembly 2 and the external or circuit board assembly 4 components on the opposite side of the coil.

However, after the shielding member 23 is disposed on the side of the plurality of second wire segments 222 opposite to the support 21, heat dissipation of the plurality of second wire segments 222 may be negatively affected, in order to avoid that the air flow is blocked by the shielding member 23 and the electromagnetic heating assembly 2 cannot dissipate heat well, in this embodiment, an over-wind hollowed-out portion 233 is disposed on the shielding member 23, and the over-wind hollowed-out portion 233 is used for allowing the air flow generated by the fan assembly 3 to pass through.

Specifically, in the present embodiment, the shielding member 23 includes a shielding main body 231 and a shielding side 232, where the shielding main body 231 is disposed on the second side of the support 21 and is located on a side of the plurality of second wire segments 222 facing away from the support 21, so as to shield the magnetic field generated by the plurality of second wire segments 222 and facing away from the support 21. The shielding side portion 232 extends from the shielding main body portion 231 to the first side of the bracket 21, the shielding side portion 232 is located outside the outer circumference of the bracket 21, and each turn of the coil further includes a third wire segment connecting the first wire segment 221 and the second wire segment 222, the third wire segment being wound around the circumference of the bracket 21, because of the convenience of winding; in this way, the coil can be wound around the first side and the second side of the bracket 21 without interruption. In this way, the magnetic field is also present on the circumference of the plurality of third wire segments, so that the magnetic conductive objects near the plurality of third wire segments are heated, and the shielding side 232 can avoid the influence of the magnetic conductive objects on the circumference of the bracket 21.

In order to facilitate the passing of the heat dissipation air flow, in the present embodiment, the shielding main body 231 and/or the shielding side 232 are provided with the over-wind hollow 233. It should be noted that, when the coil is wound on the bracket 21 through the winding slot, a gap exists between the coil and the winding slot of the bracket 21, so that the wind blown from the side direction of the electromagnetic heating assembly 2 can pass through the wind through hollow portion 233 of the shielding side portion 232, and after passing through the gap between the winding slots, can pass through the wind through hollow portion 233 of the shielding main portion 231 or pass through the other wind through hollow portion 233 of the shielding side portion 232, so that the heat on the first wire segment 221 and the second wire segment 222 disposed in the winding slot is taken away, thereby achieving the heat dissipation purpose.

Specifically, in this embodiment, a plurality of heat dissipation holes 233a are formed in the shielding main body 231 to form the over-wind hollow portion 233; and/or, the shielding side portion 232 is provided with a notch 233b to form the over-wind hollow portion 233. It should be understood that the heat dissipation holes 233a may be configured as a bar-shaped hole, a square-shaped hole or a round hole, and of course, other possible configurations may be adopted, which may be specifically determined according to practical situations, and the embodiment of the present disclosure is not limited thereto.

The present utility model also provides a cooking appliance, referring to fig. 8, the cooking appliance includes the heating device 100, and the cooking appliance includes an electric cooker, an electric pressure cooker or an electromagnetic oven, because the cooking appliance includes the heating device 100, the specific structure of the heating device 100 refers to the above embodiment, and because the heating device 100 of the cooking appliance adopts all the technical solutions of all the embodiments, at least all the beneficial effects brought by the technical solutions of the embodiments are not described herein again.

In this embodiment, the to-be-heated member 200 is disposed on the heating device 100, and the magnetic fields generated by the plurality of first wire segments 221 are used for coupling with the bottom of the to-be-heated member 200 (such as a pot) disposed on the first side of the bracket 21, and are also used for coupling with the side wall 201 of the to-be-heated member, so as to heat the side wall 201 of the to-be-heated member. Under the current packaging shell, under the limited prerequisite of heating surface, because coil unit 22 has bigger heating radiation scope, the effective coupling area of magnetic field that coil unit 22 produced and wait to heat piece 200 is bigger, not only can wait to heat the bottom of piece 200, can also wait to heat the side wall portion 201 of piece 200 to heat, realizes three-dimensional heating for wait to heat piece 200 heating effect better even, and can promote the efficiency of heating, reduce user's use cost.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (15)

1. A heating device, comprising:

the shell is provided with an air inlet and an air outlet;

At least one electrical component disposed within the housing, the electrical component comprising an electromagnetic heating component, the electromagnetic heating component comprising a bracket having a first side and a second side disposed opposite in a first direction, and a coil unit comprising a plurality of turns of a coil, each turn of the coil comprising a first wire segment and a second wire segment connected to each other and having opposite currents, each turn of the coil being wound around the first side and the second side of the bracket such that the first side of the bracket has a plurality of the first wire segments and the second side of the bracket has a plurality of the second wire segments; and

The fan assembly is arranged in the shell and used for blowing air to the electromagnetic heating assembly so as to radiate heat.

2. The heating device of claim 1, wherein the electrical components are provided in a plurality, the plurality of electrical components further comprising a circuit board assembly disposed within the housing;

The fan assembly is also used for blowing the circuit board assembly.

3. The heating device of claim 2, wherein the fan assembly comprises a fan and a housing, and two fan outlets are provided on the housing corresponding to the electromagnetic heating assembly and the circuit board assembly.

4. A heating device according to claim 3, wherein the circuit board assembly is located on a peripheral side of the electromagnetic heating assembly;

The periphery of the shell is provided with the two fan outlets.

5. The heating device of claim 4, wherein the fan comprises an axial flow fan, a rotational axis of the axial flow fan extending along the first direction;

The casing is including setting up the side wall on the bottom of casing and lid close the apron that the side wall set up, the apron is in the position that corresponds the fan export is equipped with the guide plate, the guide plate is followed the edge orientation of fan export is skew the direction of fan export extends.

6. The heating apparatus of claim 5, wherein the baffle comprises a first baffle extending from an edge of the fan outlet disposed in correspondence with the electromagnetic heating assembly toward the air outlet in correspondence with the electromagnetic heating assembly; and/or the number of the groups of groups,

The air guide plate comprises a second air guide plate, and the second air guide plate extends from the edge of the fan outlet corresponding to the circuit board assembly towards the direction of the air outlet corresponding to the circuit board assembly.

7. The heating device of claim 6, wherein a third baffle is further disposed on the second baffle, the third baffle extending from an edge of the second baffle corresponding to the circuit board assembly toward the electromagnetic heating assembly.

8. The heating apparatus of claim 6, wherein the second baffle is recessed with a mounting slot for mounting the display panel assembly.

9. The heating device of any one of claims 1 to 8, wherein a flow guide channel is further provided in the housing, the electrical assembly and the fan assembly being located on the flow guide channel.

10. The heating device of claim 9, wherein a wind-deflector structure is disposed within the housing, the wind-deflector structure defining the flow-deflector channel.

11. The heating device of claim 10, wherein the electromagnetic heating assembly further comprises a shielding member disposed on a second side of the support and on a side of the plurality of second wire segments opposite the support, and wherein the shielding member is provided with an over-wind hollowed-out portion.

12. The heating device of claim 11, wherein the shield comprises:

a shielding main body part which is arranged on the second side of the bracket and is positioned on one side of the plurality of second wire segments, which is opposite to the bracket; and

A shield side portion extending from the shield main body portion to a first side of the bracket, the shield side portion being located outside an outer periphery of the bracket;

the shielding main body part and/or the shielding side part is/are provided with the over-wind hollowed-out part.

13. The heating device of claim 12, wherein a plurality of heat dissipation holes are formed in the shielding main body portion to form the over-wind hollowed-out portion; and/or the number of the groups of groups,

The shielding lateral part is provided with a notch to form the over-wind hollowed-out part.

14. A cooking appliance comprising a heating device as claimed in any one of claims 1 to 13.

15. The cooking appliance of claim 14 wherein the magnetic fields generated by the plurality of first wire segments are used to couple with a bottom portion of a piece to be heated disposed on the first side of the bracket and are also used to couple with a side wall portion of the piece to be heated to heat the side wall portion of the piece to be heated.