CN221202791U - Wire coil assembly and cooking utensil - Google Patents

Abstract

The utility model discloses a wire coil assembly and a cooking utensil, wherein the wire coil assembly comprises a bracket, at least one electromagnetic heating coil and a magnetism isolating structure, the bracket is provided with a first side and a second side which are opposite in a first direction, the bracket is provided with a working area, at least one installation area is arranged on the working area, the electromagnetic heating coil is installed in the installation area and comprises a plurality of coils, each coil comprises a first wire segment and a second wire segment with opposite current directions, the plurality of coils are arranged around the first side and the second side of the installation area, the first side and the second side of the installation area are correspondingly provided with a plurality of first wire segments and a plurality of second wire segments, and the magnetism isolating structure comprises side magnetism isolating pieces which are positioned on the periphery of the working area and used for isolating the magnetic field of the electromagnetic heating coil from being distributed towards the periphery of the working area.

Description

Wire coil assembly and cooking utensil

Technical Field

The utility model relates to the technical field of cooking devices, in particular to a wire coil assembly and a cooking appliance.

Background

The wire coil winding mode of the conventional electromagnetic cooking utensil is unilateral winding, is limited by working parameters such as unilateral winding working current and frequency, and the heating height of the wire coil after being coupled with the cooker is low, vortex can only be generated at the bottom of the cooker, and effective heating of the side wall of the cooker is difficult, so that the problem of how to improve the heating effect on the side wall of the cooker is a technical problem which needs to be solved by a person skilled in the art.

Disclosure of utility model

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, and the heating height after coupling with the pot is improved, but when the double-side winding wire coil works, partial winding at the side edge of the wire coil can generate magnetic induction wires extending towards the periphery of the wire coil, further a side magnetic field is generated, the side magnetic field can influence the heating magnetic field, and the magnetic induction wires of the heating magnetic field are not concentrated.

The utility model mainly aims to provide a wire coil assembly and a cooking utensil, and aims to solve the problem that a side magnetic field is generated by the wire coil assembly, so that magnetic induction lines of a heating magnetic field are not concentrated.

To achieve the above object, the present utility model provides a wire coil assembly, comprising:

a bracket having first and second sides opposite in a first direction, the bracket having a working area with at least one mounting area disposed thereon;

The electromagnetic heating coil is arranged in the installation area and comprises a plurality of turns of coils, each coil comprises a first wire segment and a second wire segment with opposite current directions, and the plurality of turns of coils are arranged around the first side and the second side of the installation area, so that the first side and the second side of the installation area are provided with a plurality of first wire segments and a plurality of second wire segments correspondingly; and

The magnetic isolation structure comprises side magnetic isolation pieces positioned on the periphery of the working area and used for isolating the magnetic field of the electromagnetic heating coil from being distributed towards the periphery of the working area.

In an embodiment, the working area is provided with a plurality of the mounting areas, and the plurality of the mounting areas are distributed along the circumferential direction of the working area.

In one embodiment, the side magnetism insulator is located on a peripheral side of the bracket.

In one embodiment, the distance between the side magnetism isolating piece and the circumferential side of the bracket is D1, and D1 is more than or equal to 0.5mm and less than or equal to 50mm.

In one embodiment, the side magnetism isolating piece has a thickness D2, and D2 is more than or equal to 0.5mm and less than or equal to 10mm.

In one embodiment, the side magnetic separator has a first end side and a second end side, the first end side of the side magnetic separator is disposed near the first side of the bracket, and a height difference between the first end side of the side magnetic separator and the first side of the bracket is D3, 0.ltoreq.D3.ltoreq.10mm.

In one embodiment, the side magnetic separator has a dimension D4 in the first direction, D4 being less than or equal to 50mm.

In one embodiment, a magnetic strip is arranged in the bracket, and one end of the magnetic strip extends to the periphery of the bracket;

the side magnetism isolating piece is correspondingly positioned on the outer peripheral side of the bracket and is arranged corresponding to the end part of the magnetic strip.

In one embodiment, the bracket comprises a first split and a second split arranged in layers in a first direction;

The spool assembly also includes a magnetic strip positioned between the first segment and the second segment.

In one embodiment, the second split body is provided with a mounting groove at a position close to the outer periphery;

the side magnetism isolating piece is inserted and installed in the installation groove.

In one embodiment, the magnetic shielding structure further comprises a bottom magnetic shielding member, the bottom magnetic shielding member being located on the second side of the bracket.

In an embodiment, a through hole is further formed in the bottom magnetic isolation member, and the through hole and the plurality of second wire segments are arranged in a staggered manner.

In an embodiment, the side magnetism isolating piece is fixedly connected with the bottom magnetism isolating piece, and a heat dissipation hole is formed at the joint of the side magnetism isolating piece and the bottom magnetism isolating piece.

In an embodiment, the magnetic isolation structure is made of metal.

The utility model also provides a cooking appliance comprising a wire coil assembly comprising:

a bracket having first and second sides opposite in a first direction, the bracket having a working area with at least one mounting area disposed thereon;

The electromagnetic heating coil is arranged in the installation area and comprises a plurality of turns of coils, each coil comprises a first wire segment and a second wire segment with opposite current directions, and the plurality of turns of coils are arranged around the first side and the second side of the installation area, so that the first side and the second side of the installation area are provided with a plurality of first wire segments and a plurality of second wire segments correspondingly; and

The magnetic isolation structure comprises side magnetic isolation pieces positioned on the periphery of the working area and used for isolating the magnetic field of the electromagnetic heating coil from being distributed towards the periphery of the working area.

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.

In the technical scheme provided by the utility model, the wire coil assembly comprises a bracket, at least one electromagnetic heating coil and a magnetism isolating structure, wherein the bracket is provided with a working area, the working area is provided with at least one installation area for the electromagnetic heating coil to wind on two sides so as to form a first conducting wire section close to a first side of the bracket and a second conducting wire section close to a second side of the bracket, and as the electromagnetic heating coil is electrified to work, part of the magnetism conducting wire can extend along the peripheral side of the working area, in addition, in the technical scheme of the utility model, the magnetism isolating structure is also provided for isolating the magnetism conducting wire, the magnetism isolating structure comprises a side magnetism isolating part, and the side magnetism isolating part is arranged on the peripheral side of the working area, so that the magnetism conducting wire extending along the peripheral side of the working area can be effectively isolated, thereby enhancing the coupling of the electromagnetic heating coil, laying a foundation for subsequent high-power heating, and in addition, the side magnetism isolating part can effectively shield a side magnetic field, thereby reducing electromagnetic radiation of the wire coil assembly and preventing the metal device positioned on the peripheral side from being scalded.

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 embodiment of a wire coil assembly provided by the present utility model;

FIG. 5 is an enlarged schematic view of FIG. 4 at section A;

Fig. 6 is an exploded perspective view of the wire coil assembly of fig. 4;

fig. 7 is a schematic perspective view of another embodiment of a wire coil assembly provided by the present utility model;

FIG. 8 is an enlarged schematic view of FIG. 7 at section B;

fig. 9 is an exploded perspective view of the wire coil assembly of fig. 7;

FIG. 10 is a schematic top view of an embodiment of a cooking appliance (after removal of the lid) according to the present utility model;

FIG. 11 is a perspective view of the cooking appliance of FIG. 10, shown in section;

Fig. 12 is a schematic cross-sectional view of another embodiment of the cooking appliance provided by the present utility model.

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 present utility model proposes a cooking apparatus 1000, as shown in fig. 10 and fig. 11, which is an embodiment of the cooking apparatus 1000 provided by the present utility model, the cooking apparatus 1000 may be an induction cooker, a pressure cooker, a cooking machine, etc., and the cooking apparatus 1000 includes a wire coil assembly 100, and generally, the cooking apparatus 1000 further includes a housing 200, where the wire coil assembly 100 is accommodated in the housing 200, and of course, an electric control assembly is further disposed in the housing 200.

It should be noted that the coil assembly 100 may be sold as a separate intermediate product or component, and for this purpose, the utility model also provides a coil assembly 100.

That is, the present utility model provides a wire coil assembly 100 and a cooking appliance 1000 having the same wire coil assembly 100.

When the wire coil assembly 100 in the cooking apparatus 1000 is wound on both sides, the side magnetic field generated by the wire coil assembly 100 is very strong, that is, the side magnetic field generated by the side winding connecting the upper layer winding (i.e., the first wire segment 21) and the lower layer winding (i.e., the second wire segment 22), so that the side magnetic field of the wire coil assembly 100 may affect the heating magnetic field, and the induction lines of the heating magnetic field are not concentrated.

In order to solve the above-mentioned problems, the present utility model provides a new wire coil assembly 100 and a cooking apparatus 1000 having the wire coil assembly 100, please refer to fig. 4 to 9, fig. 1 is a schematic perspective view of an embodiment of the wire coil assembly 100 provided by the present utility model, fig. 5 is an enlarged schematic view of an embodiment of the wire coil assembly 100 provided by the present utility model at a, fig. 6 is a split schematic view of an embodiment of the wire coil assembly 100 provided by the present utility model, fig. 7 is a schematic perspective view of another embodiment of the wire coil assembly 100 provided by the present utility model, fig. 8 is an enlarged schematic view of another embodiment of the wire coil assembly 100 provided by the present utility model at B, and fig. 9 is a split schematic view of another embodiment of the wire coil assembly 100 provided by the present utility model.

Referring further to fig. 4 to 6, the wire coil assembly 100 includes a support 1, at least one electromagnetic heating coil 2, and a magnetism isolating structure 3. The support 1 is used for winding and supporting the electromagnetic heating coil 2, a working area is provided on the support 1, a mounting area 111 is correspondingly provided on the working area so that the electromagnetic heating coil 2 is wound on both sides, the working area is an area distributed by the mounting area, when one mounting area is provided, the corresponding working area is basically overlapped with the mounting area, when a plurality of mounting areas are provided, the working area is an area distributed by the plurality of mounting areas, in the embodiments of fig. 4 to 6, the mounting area is a plurality of mounting areas, and the working area is a corresponding distributed area of the mounting area. In addition, since the wire coil assembly 100 further includes the magnetism isolating structure 3, the magnetism isolating structure 3 includes the side magnetism members 31, the side magnetism members 31 are used for shielding side magnetic fields, and thus preventing the magnetic fields on the periphery of the working area from leaking outwards, so as to avoid adverse effects caused by diffusion of electromagnetic fields.

The electromagnetic heating coil 2 has a plurality of turns of coil, each turn of coil includes a first wire segment 21 and a second wire segment 22 which are connected to each other and have opposite currents, and it is apparent that the current flows of the plurality of first wire segments 21 are arranged from one end corresponding to each other toward the other end corresponding to each other, that is, the current flows are substantially uniform from both ends. The plurality of first wire segments 21 together form a working side line group, and one side of the working side line group is used for corresponding to the heating container so as to electromagnetically heat the heating container.

It should be noted that the "coil" in the "multi-turn coil" according to the present application is not only circular, but may be square or oval, and "coil" means a coil formed by bending a coil to form a substantially whole turn, and therefore, in a coil, the direction of current is clockwise or counterclockwise, but when the "coil" is cut from the middle area, the current direction of one wire section is from one end to the other end, and the current direction of the other wire section is from the other end to one end, that is, the current direction is opposite, so that each turn of the coil includes a first wire section 21 and a second wire section 22 which are connected to each other and have opposite currents.

In the technical scheme provided by the utility model, the wire coil assembly 100 comprises a support 1, at least one electromagnetic heating coil 2 and a magnetism isolating structure 3, wherein the support 1 is provided with a working area, the working area is provided with at least one mounting area 111 for the electromagnetic heating coil 2 to wind around on both sides so as to form a first conducting wire section 21 close to a first side of the support 1 and a second conducting wire section 22 close to a second side of the support 1, and as the electromagnetic heating coil 2 is electrified to work, part of magnetism induction wires extend along the peripheral side of the working area, in addition, in the technical scheme of the utility model, the magnetism isolating structure 3 is also provided for isolating magnetism induction wires, and the magnetism isolating structure 3 comprises a side magnetism isolating piece 31, and the side magnetism isolating piece 31 is arranged on the peripheral side of the working area, so that the magnetism induction wires extending along the peripheral side of the working area can be effectively isolated, the coupling of the electromagnetic heating coil 2 is enhanced, a subsequent high-power heating basis is laid, and in addition, the side magnetism isolating piece 31 can effectively reduce the magnetism induction wires from being burnt by the electromagnetic heating coil assembly, and further the metal device is prevented from being scalded from being located on the peripheral side of the working area 100.

In the embodiment of the present invention, the working area is provided with a plurality of mounting areas 111, and a plurality of mounting areas 111 are arranged along the circumferential direction of the working area, so that the induction lines in the electromagnetic heating coil 2 are distributed from the circumferential side of the working area, and enough induction lines can be distributed on each side of the working area, and since the electromagnetic heating coil 2 is wound on the mounting area 111, a plurality of first wire segments 21 and a plurality of second wire segments 22 are correspondingly provided, and the number of the first wire segments 21 and the second wire segments 22 is a plurality, otherwise, the current passing through the first wire segments 21 and the second wire segments 22 is required to be large enough to achieve the heating effect, and the excessive current easily causes a safety hazard.

In addition, it should be noted that, referring to fig. 4, the "plurality of mounting areas 111" may be referred to, in an embodiment of the present application, the working area is circularly disposed, the working area has a middle portion, the number of mounting areas 111 is 4, and the mounting areas are respectively located on each module divided by four bisectors of the working area, and the first wire segment 21 is bent from two ends to the middle portion thereof away from the middle portion of the working area, so as to reduce the number of magnetic induction lines in the middle portion of the working area, and further improve the problem that the heating of the working area is too concentrated to cause uneven heating. In addition, the working area has a middle part, and the first wire segment 21 surrounding the working area is bent from two ends to the middle part to be close to the middle part of the working area, so that the heating effect of the middle part of the working area is better.

In other embodiments, the number of the installation areas 111 may be set to 2 or 3, and when the number of the installation areas 111 is set to 2, the electromagnetic heating coils 2 are distributed along the circumferential direction of the working area, so as to better facilitate the distribution of the induction lines in each electromagnetic heating coil 2 from each direction of the circumferential side of the working area, and the two sides of the working area are distributed with the electromagnetic heating coils 2, so that the two sides of the working area are distributed with enough induction lines, and the problem that the heating effect is poor because the induction lines are less in the middle of the working area is solved. When the installation areas 111 are set to 3, the same effect as above is achieved, and a detailed description thereof will be omitted.

In order to ensure the shielding effect of the magnetic shielding structure 3, the side magnetic shielding members 31 are located at the periphery of the bracket 1, specifically, the side magnetic shielding members 31 are arranged around the periphery of the bracket 1, when the electromagnetic heating coil 2 located at the mounting area 111 of the bracket 1 works and generates side magnetic induction lines, the side magnetic shielding members 31 can attenuate electromagnetic fields due to absorption loss, on the one hand, and on the other hand, due to the eddy current effect generated by the side magnetic shielding members 31, eddy current can generate heat in the side magnetic shielding members 31 to cause energy loss, and the energy loss also means attenuation of the electromagnetic fields, and besides, due to the fact that the eddy current itself also generates a magnetic field, the direction of the magnetic field is opposite to the direction of the interference magnetic field, and some cancellation is performed on the original magnetic field, so that the side magnetic shielding members 31 can effectively reduce the influence of the side magnetic field generated by the electromagnetic heating coil 2 on the outside.

Further, in the embodiment of the present application, the distance between the side magnetic shield 31 and the circumferential side of the bracket 1 is D1, D1 ranges from 0.5mm to 50mm, wherein when the distance D1 between the side magnetic shield 31 and the circumferential side of the bracket 1 is smaller than 0.5mm, the electromagnetic heating coil 2 wound around the circumferential sides of the side magnetic shield 31 and the bracket 1 is too close, and as the electromagnetic heating coil 2 and the side magnetic shield 31 both increase in temperature during operation, spark may occur, thereby damaging the internal structure of the wire coil assembly 100, and when the distance D1 between the side magnetic shield 31 and the circumferential side of the bracket 1 is larger than 50mm, the shielding effect of the side magnetic shield 31 is poor, and as the distance of the side magnetic shield 31 to the bracket 1 is far, the circumference of the side magnetic shield 31 is increased correspondingly required, thereby increasing the cost of the product between the circumferential sides of the side magnetic shield 31 and the bracket 1 to 50mm, and the cost of the application between the side magnetic shield 31 and the circumferential side of the bracket 1 is 0.5 mm.

In view of the dual consideration of cost saving and use safety, the thickness of the side magnetic shield 31 is D2, D2 ranges from 0.5mm to 10mm, and when the thickness of the side magnetic shield 31 is less than 0.5mm, the side magnetic shield 31 generates heat during operation due to the relatively thin thickness of the side magnetic shield 31, so that the heat generation amount of the side magnetic shield 31 is greatly increased due to the excessively thin thickness, which creates a safety hazard, and when the thickness of the side magnetic shield 31 is greater than 10mm, the use cost of raw materials is greatly increased, which causes unnecessary waste, so that in the embodiment of the present application, the thickness D2 of the side magnetic shield 31 ranges from 0.5mm to 10 mm.

It should be noted that the side magnetic separator 31 has a first end side and a second end side that are disposed opposite to each other, it is understood that the first end side of the side magnetic separator 31 is disposed close to the first side of the support 1, and the height difference between the first end side of the side magnetic separator 31 and the first side of the support 1 is D3, where D3 ranges from 0 to 10mm, the height difference in the present document refers to the height of the first end side of the side magnetic separator 31 that is higher than the first side of the support 1, that is, the first end side of the side magnetic separator 31 is higher than or flush with the first side of the support 1, so as to achieve a better shielding effect, when the first end side of the side magnetic separator 31 is lower than the first side of the support 1, the portion of the electromagnetic heating coil 2 wound to the mounting area 111 is higher than the side magnetic separator 31, and at this time, the side magnetic separator 31 cannot shield a portion of the magnetic induction coil higher than the magnetic induction line, resulting in that the side of the side magnetic separator 31 is not required to absorb the electromagnetic induction coil 1 to the first side of the support 1.

In addition, the dimension of the side magnetic shielding member 31 in the first direction is D4, that is, the distance from the first end side to the second end side of the side magnetic shielding member 31 is D4, where D4 is less than or equal to 50mm, and the height of the side magnetic shielding member 31 is not limited, specifically, the height of the side magnetic shielding member 31 needs to be determined according to the heights of the electromagnetic heating coil 2 and the bracket 1, where appropriate, the height of the side magnetic shielding member 31 cannot exceed 50mm, so that, on one hand, the waste of materials and the increase of cost are avoided, and on the other hand, the height of the whole wire coil assembly 100 is influenced due to the fact that the height of the side magnetic shielding metal member is too high, and the heating effect of the wire coil assembly 100 may be reduced due to the fact that the shielding magnet induction line is not needed.

In some embodiments, in order to reduce the mutual influence of the magnetic induction lines generated by energizing between the first wire segment 21 and the second wire segment 22, a magnetic strip 4 is correspondingly disposed in the bracket 1, and the magnetic strip 4 is disposed between the first wire segment 21 and the second wire segment 22 to shield the influence of the magnetic induction lines generated by the second wire segment 22 on the first wire segment 21, and one end of the magnetic strip 4 extends to the periphery of the bracket 1, and since the head of the magnetic strip 4 correspondingly generates the magnetic induction lines with the direction facing the side, in the embodiment of the present application, the side magnetic isolation member 31 is correspondingly disposed on the periphery of the bracket 1 and is correspondingly disposed on the end of the magnetic strip 4 to shield the magnetic induction lines generated by the end of the magnetic strip 4.

In some embodiments, the side magnetic shielding member 31 is disposed in a ring shape so as to be disposed around the outer periphery of the bracket 1, so as to entirely enclose the side magnetic field generated by the electromagnetic heating coil 2, thereby achieving the best insulation effect, while in other embodiments, referring to fig. 4 to 9, the side magnetic shielding member 31 is disposed in a plurality of side magnetic sheets 311, and the plurality of side magnetic sheets 311 are disposed corresponding to the ends of the magnetic stripe 4.

Referring to fig. 4 to 7, it may be understood that the bracket 1 includes a first split 11 and a second split 12 that are layered in a first direction, where the working area is located on the first split 11, and it may be understood that the mounting area 111 is correspondingly located on the first split, and a slot is correspondingly located on the first split 11, so that the corresponding electromagnetic heating coil 2 is mounted in the slot, where a winding gap exists between the slot and the slot, and in an embodiment of the present application, at least one of the winding gaps is greater than or equal to 2mm, so that a magnetic field generated between the two adjacent first wire segments 21 is less likely to overlap, and further, a problem of heat concentration may be better improved, and in other embodiments, the mounting area 111 may be located as a tooth on a side periphery of the first split 11, or an adhesive may be used to fix the electromagnetic heating coil 2 in a suitable position. The coil assembly 100 further includes a magnetic stripe 4, where the magnetic stripe 4 is located between the first split 11 and the second split 12 to isolate the first wire segment 21 and the second wire segment 22.

In the embodiment of the present application, the second sub-body 12 is provided with a mounting groove 121 near the outer periphery, the mounting groove 121 is used for mounting the side magnetic shielding member 31, the side magnetic shielding member 31 is inserted into the second sub-body 12 through the mounting groove 121, the assembly and the disassembly are simple, and in other embodiments, the side magnetic shielding member 31 can also be mounted on the second sub-body 12 through a fastening, gluing or screwing structure, which is not limited herein.

The magnetism isolating structure 3 further includes a bottom magnetism isolating member 32, specifically, the bottom magnetism isolating member 32 is disposed on the second side of the support 1, the bottom magnetism isolating member 32 can be used for isolating the bottom magnetic field generated by the second wire segment 22 on the second side of the support 1, thereby avoiding bad influence caused by diffusion of the bottom magnetic field, specifically, the increase of the overall inductance of the whole wire coil assembly 100 caused by the generation of the bottom magnetic field can be avoided, and further, the coupling parameters of the wire coil assembly 100 are improved, and the requirement of high-power heating can be met by matching with an electric control scheme, besides, the bottom magnetism isolating member 32 can isolate the bottom magnetic field to interfere with the electronic component below the wire coil assembly 100, so that the electronic component cannot work normally, and more, if the cooking utensil 1000 including the wire coil assembly 100 is placed on a metal table, the bottom magnetic field can heat the metal table reversely, and damage the cooking utensil 1000 is caused, so that the bottom magnetism isolating member 32 can effectively avoid the problems.

Referring to fig. 9, in order to ensure heat dissipation inside the wire coil assembly 100, the bottom magnetic shielding member 32 is further provided with a through hole 321, so that a ventilation channel is formed at the second side of the support 1, and in order to ensure that the magnetic shielding function is not affected, the through hole 321 and the plurality of second wire segments 22 are arranged in a staggered manner, in the embodiment of the application, the plurality of second wire segments 22 are located in a region divided by four bisectors of the support 1, and the second wire segments 22 in the middle of the support 1 are bent toward the middle of the support 1, so that the through hole 321 is formed in the middle of the bottom magnetic shielding member 32, avoiding the region around which the second wire segments 22 are wound, and further improving heat dissipation capability on the premise of ensuring the magnetic shielding effect.

Therefore, the positions of the through holes 321 are not limited herein, and only need to avoid the area around which the second wire segments 22 are wound, it is understood that the number of the through holes 321 may be multiple, and the positions of the through holes 321 may be set at the gap positions between the second wire segments 22, so as to achieve a better ventilation effect.

Referring to fig. 7 to 9, in this embodiment, the side magnetic separator 31 and the bottom magnetic separator 32 are fixedly connected, the side magnetic separator 31 and the bottom magnetic separator 32 are integrally disposed, in some embodiments, a portion of the bottom magnetic separator 32 is folded toward the first side of the bracket 1 to form the side magnetic separator, or the side magnetic separator is fixed to the bottom magnetic separator 32 by gluing, welding, slot inserting, or the like, which is not limited herein, so long as the fixed connection of the bottom magnetic separator 32 and the side magnetic separator 32 can be completed, further, the junction of the side magnetic separator 31 and the bottom magnetic separator 32 is provided with heat dissipation holes 33, it will be understood that the highest position of the heat dissipation holes 33 cannot exceed the lowest position of the second wire segment 22, otherwise the magnetic separator effect of the side magnetic separator will be affected, in embodiments of the present application, the number of the heat dissipation holes 33 is set to be the plurality of heat dissipation coils 100 for safe operation, and the heat dissipation stability is ensured.

In addition, in order to ensure a better magnetic shielding effect, which is also called an electromagnetic shielding effect, the electromagnetic shielding is a measure for isolating the magnetic field coupling, and the low-frequency magnetic shielding is difficult because the absorption loss is not favored due to the low frequency, and the wave impedance is low and the reflection loss is not favored due to the magnetic field source. In this case, the magnetic flux path may be artificially formed using a high magnetic permeability material starting from a low reluctance path angle, changing the direction or range of the magnetic flux. The isolation and the change of the relative direction of the source and the return path are made so as to be as non-perpendicular to each other as possible (only the magnetic flux component perpendicular to the return path induces a voltage). The high permeability can improve absorption loss for low frequency energy, such as steel, nickel-iron alloy and permalloy, but the permeability of the materials can be reduced along with the increase of the frequency, so that copper or aluminum with high conductivity can be more effective when the frequency is higher, and the magnetic isolation structure 3 is made of metal because the application scene is alternating current with high frequency change in the application, on one hand, the absorption loss is depended on, and on the other hand, the eddy current can generate heat in a conductor by utilizing the eddy current effect generated by the high-conductivity shielding body, so that the energy loss is caused, and the partial loss is actually attenuation of an electromagnetic field. The higher the frequency of the alternating magnetic field and the smaller the resistivity of the conductor, the stronger the losses. In addition, the eddy current can generate a magnetic field, and the direction of the magnetic field is always opposite to the direction of the interference magnetic field, so that the original magnetic field is counteracted to some extent, and the electromagnetic shielding effect is achieved.

Referring to fig. 10 to 11, the present utility model further provides a cooking apparatus 1000 including a wire coil assembly 100, and the cooking apparatus 1000 includes all the functions and effects of the wire coil assembly 100, so that the details thereof will not be described herein. Specifically, the cooking appliance 1000 includes an induction cooker, a pressure cooker, a cooking machine, and the like, in addition, the cooking appliance 1000 includes a housing 200, a receiving space is provided in the housing 200, the wire coil assembly 100 is installed in the receiving space, besides, the cooking appliance 1000 further includes a temperature measuring element 300, a cooling fan 400, a display panel 500, and a main control panel 600, the temperature measuring element 300 is disposed on the wire coil assembly 100, specifically, in the present utility model, the temperature measuring element 300 is disposed at a center of the wire coil assembly 100, a portion not wound with a coil is disposed in the receiving space, the cooling fan 400 is disposed near the wire coil assembly 100 for circulating ventilation to dissipate heat of the wire coil assembly 100, and the display panel 500 is disposed on a surface of the housing 200, so that on one hand, an aesthetic effect can be achieved, and on the other hand, a user can operate the cooking appliance 1000 conveniently; the main control board 600 is disposed in the accommodating space, and is electrically connected to the wire coil assembly 100, the cooling fan 400, and the display board 500, so as to control the operation of the above devices.

Referring to fig. 12, in the present embodiment, the to-be-heated member 2000 is disposed on the wire coil assembly 100, and the magnetic fields generated by the plurality of first wire segments 21 are used for coupling with the bottom of the to-be-heated member 2000 (pot, etc.) disposed on the first side of the bracket 1, and are also used for coupling with the side wall portion 2001 of the to-be-heated member, so as to heat the side wall portion 2001 of the to-be-heated member. Under the limited prerequisite of heating surface, because of wire coil assembly 100 has bigger heating radiation scope, the magnetic field that wire coil assembly 100 produced is bigger with the effective coupling area of treating heating piece 2000, not only can treat the bottom heating of heating piece 2000, can also treat the side wall portion 2001 heating of heating piece 2000, realizes three-dimensional heating for treat heating piece 2000 heating effect is 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 (16)

1. A wire coil assembly, comprising:

a bracket having first and second sides opposite in a first direction, the bracket having a working area with at least one mounting area disposed thereon;

The electromagnetic heating coil is arranged in the installation area and comprises a plurality of turns of coils, each coil comprises a first wire segment and a second wire segment with opposite current directions, and the plurality of turns of coils are arranged around the first side and the second side of the installation area, so that the first side and the second side of the installation area are provided with a plurality of first wire segments and a plurality of second wire segments correspondingly; and

The magnetic isolation structure comprises side magnetic isolation pieces positioned on the periphery of the working area and used for isolating the magnetic field of the electromagnetic heating coil from being distributed towards the periphery of the working area.

2. The wire coil assembly of claim 1, wherein the working area is provided with a plurality of the mounting areas, the plurality of mounting areas being disposed along a circumference of the working area.

3. A wire coil assembly as claimed in claim 1 or claim 2, wherein the side magnetic barriers are located on the peripheral side of the support.

4. A wire coil assembly as set forth in claim 3 wherein the distance between said side magnetic shield and the peripheral side of said bracket is D1,0.5mm ∈d1 ∈50mm.

5. The wire coil assembly of claim 1, wherein the side magnetic shield has a thickness D2,0.5mm ∈d2 +.10 mm.

6. The wire coil assembly of claim 1, wherein the side magnetic shield has a first end side and a second end side, the first end side of the side magnetic shield being disposed adjacent the first side of the bracket, the first end side of the side magnetic shield having a height difference D3 from the first side of the bracket of 0.ltoreq.d3.ltoreq.10mm.

7. The wire coil assembly of claim 1 wherein said side magnetic barriers have a dimension D4 in said first direction, D4 being less than or equal to 50mm.

8. The wire coil assembly of claim 1, wherein a magnetic strip is disposed within the bracket, one end of the magnetic strip extending to a peripheral side of the bracket;

the side magnetism isolating piece is correspondingly positioned on the outer peripheral side of the bracket and is arranged corresponding to the end part of the magnetic strip.

9. A wire coil assembly according to claim 1 or 8, wherein the support comprises first and second segments arranged in layers in a first direction;

The spool assembly also includes a magnetic strip positioned between the first segment and the second segment.

10. The wire coil assembly of claim 9, wherein the second segment is provided with a mounting groove adjacent the outer periphery;

the side magnetism isolating piece is inserted and installed in the installation groove.

11. The wire coil assembly of claim 1, wherein the magnetic barrier structure further comprises a bottom magnetic barrier, the bottom magnetic barrier being located on the second side of the bracket.

12. The wire coil assembly of claim 11, wherein the bottom magnetic shield is further provided with a through hole, the through hole being offset from the plurality of second wire segments.

13. The wire coil assembly of claim 11, wherein the side magnetic shield is fixedly connected to the bottom magnetic shield, and a heat dissipating aperture is provided at the junction of the side magnetic shield and the bottom magnetic shield.

14. The wire coil assembly of claim 1, wherein the magnetic isolation structure is metallic.

15. A cooking appliance comprising a wire coil assembly as claimed in any one of claims 1 to 14.

16. The cooking appliance of claim 15 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.