CN219761362U - Coil panel assembly and cooking equipment - Google Patents

Abstract

The utility model provides a coil panel assembly and cooking equipment, wherein the coil panel assembly comprises: coil panel support, coil and magnetic shielding piece, the coil panel support has relative first face and second face, the coil set up in first face, the connecting hole has been seted up to the coil panel support, the connecting hole runs through first face with the second face, the connecting hole is used for connecting the fastener, the magnetic shielding piece set up in the edge of connecting hole. The utility model is used for solving the technical problem that the temperature of a fastener for fixing the coil panel assembly is easy to be excessively increased.

Description

Coil panel assembly and cooking equipment

Technical Field

The utility model relates to the field of kitchen appliances, in particular to a coil panel assembly and cooking equipment.

Background

With the development of electromagnetic heating technology, electromagnetic heating has become a main heating mode of cooking equipment such as an electric cooker and an electromagnetic oven, a coil panel assembly is usually arranged in the cooking equipment, when the cooking equipment works, alternating current is connected to a coil of the coil panel assembly, an alternating magnetic field is generated around the coil, and a large amount of eddy current is generated in a metal part at the bottom of the cooker, so that heat required for cooking is generated.

The coil panel subassembly adopts the screw fixation at the interior wall surface of cooking equipment drain pan under the general condition, and the cooking equipment during operation, and the electromagnetism of production can also cause the screw heating of screw fixed coil panel subassembly to the screw overheat except that acting on the pan and adding realization culinary art effect, influences the security of using.

Disclosure of Invention

The utility model provides a coil panel assembly and cooking equipment, which are used for solving the technical problem that a fastener for fixing the coil panel assembly is easy to excessively raise temperature.

In order to achieve the above object, the present utility model provides a coil panel assembly comprising: coil panel support, coil and magnetic shielding piece, the coil panel support has relative first face and second face, the coil set up in first face, the connecting hole has been seted up to the coil panel support, the connecting hole runs through first face with the second face, the connecting hole is used for connecting the fastener, the magnetic shielding piece set up in the edge of connecting hole.

According to the coil panel assembly, the magnetic shielding piece is arranged at the edge of the connecting hole, so that the magnetic force lines around the fastening piece can be shielded, the influence of the magnetic force lines generated by the coil on the fastening piece is reduced, the fastening piece is prevented from being excessively heated, and the use safety is improved.

In one possible embodiment, the magnetic shield includes magnetic shielding pieces, at least two of which are spaced apart from each other along the circumferential direction of the connection hole at the edge of the connection hole. The magnetic isolating sheet has good electromagnetic isolation performance and can isolate magnetic lines of force, so that when the coil panel assembly works, the fastening piece penetrating through the connecting hole 14 is prevented from being heated to cause abnormal high temperature of the fastening piece, and the use safety is improved.

In one possible embodiment, the magnetic shield comprises a magnetism isolating ring, a first hole is formed in the magnetism isolating ring, and the first hole and the connecting hole are communicated with each other. The magnetism isolating ring is arranged on the periphery of the fastener in a surrounding mode, no magnetic leakage gap exists in the range of 360 degrees in the circumferential direction of the fastener, the magnetism isolating effect is better, and the assembly process can be simplified.

In one possible implementation, the magnetic shield includes a magnetic shield covering at least one end of the fastener, the magnetic shield including a capping portion and a peripheral portion connected to an edge of the capping portion, the capping portion and the peripheral portion enclosing an isolation cavity, the at least one end of the fastener being located within the isolation cavity.

In one possible implementation manner, the magnetism isolating cover further comprises a connecting portion, wherein the connecting portion is connected with one end, far away from the sealing top, of the surrounding edge portion, the connecting portion is turned over to the outside of the isolation cavity, and the connecting portion is connected with the coil panel support.

In one possible implementation, the magnetic shield is a low permeability magnetic shield.

In one possible implementation, the magnetic shield is disposed on the first face of the coil disk support with a spacing between the magnetic shield and the coil; and/or the number of the groups of groups,

the magnetic shield is disposed on the second face of the coil disk holder.

In one possible embodiment, the diameter D of the coil former holder satisfies: d is more than or equal to 200mm.

In one possible implementation manner, the first surface of the coil panel support includes an inner winding area, a spacing area and an outer winding area, the inner winding area, the spacing area and the outer winding area are sequentially arranged from the center of the coil panel support to the edge of the coil panel support along the radial direction of the coil panel support, the inner winding area and the outer winding area are both provided with the coils, and the connecting hole is located in the spacing area.

In one possible implementation manner, the coil panel bracket further comprises a magnetism collecting assembly, wherein the magnetism collecting assembly comprises a plurality of magnetic strips, and the magnetic strips are distributed on the second face of the coil panel bracket at intervals along the radial direction of the coil panel bracket.

The utility model also provides cooking equipment which comprises the bottom shell and the coil panel assembly, wherein the coil panel assembly is connected to the inner bottom wall surface of the bottom shell through the fastening piece penetrating through the connecting hole.

According to the coil panel assembly, the connecting holes for connecting the fasteners are formed in the spacing areas, so that the occupied area of the coil panel assembly during installation can be effectively reduced, and the length and the width of cooking equipment can be reduced.

According to the coil panel assembly and the cooking equipment, the magnetic shielding piece is arranged, so that the density and the strength of magnetic force lines penetrating around the fastening piece in the connecting hole can be reduced when the coil panel assembly works, the concentration of the magnetic force lines is changed, the heated temperature of the fastening piece is reduced, and abnormal overheating of the fastening piece of the screw is prevented.

In addition to the technical problems, technical features constituting the technical solutions, and beneficial effects caused by the technical features of the technical solutions described above, other technical problems that can be solved by the coil panel assembly and the cooking device provided by the embodiments of the present utility model, other technical features included in the technical solutions, and beneficial effects caused by the technical features will be described in further detail in the detailed description.

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 some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of an internal structure of a cooking apparatus according to an embodiment of the present utility model;

FIG. 2 is an exploded view of a coil disk assembly according to an embodiment of the present utility model;

fig. 3 is a schematic perspective view of a coil disc assembly according to an embodiment of the present utility model;

FIG. 4 is an enlarged view of the structure at A of FIG. 2;

FIG. 5 is a top view of a magnetic separator sheet of a coil disk assembly according to an embodiment of the present utility model;

fig. 6 is a left side view of a magnetic separator sheet of a coil disc assembly according to an embodiment of the present utility model;

FIG. 7 is an exploded view of yet another coil disk assembly provided in accordance with an embodiment of the present utility model;

FIG. 8 is a top view of yet another coil disk assembly provided in accordance with an embodiment of the present utility model;

FIG. 9 is a bottom view of yet another coil disk assembly provided in accordance with an embodiment of the present utility model;

FIG. 10 is an enlarged view of the structure at B of FIG. 7;

FIG. 11 is a schematic diagram of a magnetic shield of a coil disk assembly according to an embodiment of the present utility model;

fig. 12 is an exploded view of a cooking apparatus according to an embodiment of the present utility model.

Reference numerals illustrate:

10-coil panel bracket;

11-an inner winding area;

12-spacers;

13-an outer winding area;

14-connecting holes;

15-a first rib;

16-a second rib;

17-a temperature measuring hole;

18-mounting slots;

20-coils;

30-magnetic shield;

31-magnetism isolating sheet;

32-magnetism isolating rings;

321-a first hole;

322-a first vertical plane;

323-a second vertical plane;

33-a magnetism isolating cover;

331-capping the top;

332-isolating the cavity;

333-connecting part;

334-a peripheral edge portion;

40-magnetism gathering component;

41-magnetic strips;

50-bottom shell;

51-upper cover;

511-mounting holes;

52-radiating holes;

53-panel;

54-supporting legs;

60-a temperature measuring element;

70-a lamp panel;

80-fans;

90-control panel.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, not all embodiments. 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.

In the existing electromagnetic heating type cooking devices, the diameter of the coil panel assembly is generally smaller than 180mm, the size is smaller, and screws for fixing the coil panel assembly are generally connected to the edge positions of the coil panel. With such a structure, the coil panel assembly with a larger diameter occupies a larger area, and the assembly requirement cannot be satisfied without increasing the length and width of the cooking device.

In order to reduce the occupation area of the coil panel assembly, the screws for fixing the coil panel are arranged in the middle of the coil panel and are in a strong magnetic field environment, and eddy currents can be generated by the screws when the cooking equipment works, so that a large amount of heat is generated, the coil panel bracket for fixing the screws is easy to locally soften or even deform, and the use safety is affected.

In view of this, the coil panel assembly provided by the utility model can shield magnetic force lines around the connecting hole of the fixed screw by arranging the magnetic shielding piece, reduce the influence of the magnetic force lines generated by the coil on the screw, prevent the screw from excessively increasing temperature and improve the use safety.

The following describes a coil panel assembly and a cooking device according to an embodiment of the present utility model with reference to the accompanying drawings.

Referring to fig. 1 and 2, the present utility model provides a coil disk assembly including: the coil panel support 10, the coil 20 and the magnetic shielding piece 30, the coil panel support 10 has opposite first face and second face, and the coil 20 sets up in first face, and the coil panel support 10 has seted up connecting hole 14, and connecting hole 14 runs through first face and second face, and connecting hole 14 is used for connecting the fastener, and the magnetic shielding piece 30 sets up in the edge of connecting hole 14.

According to the coil panel assembly provided by the utility model, the magnetic lines of force around the connecting hole 14 can be shielded by arranging the magnetic shielding piece 30, so that the influence of the magnetic lines of force generated by the coil 20 on the fastening piece is reduced, the excessive temperature rise of the fastening piece is prevented, and the use safety is improved.

In one possible implementation, the first surface of the coil disc support 10 includes an inner winding region 11, a spacer region 12 and an outer winding region 13, the inner winding region 11, the spacer region 12 and the outer winding region 13 are sequentially arranged from the center of the coil disc support 10 to the edge of the coil disc support 10 in the radial direction of the coil disc support 10, coils 20 are disposed in the inner winding region 11 and the outer winding region 13, and the connection hole 14 is located in the spacer region 12.

According to the coil panel assembly provided by the utility model, the connecting holes 14 for connecting the fasteners are formed in the spacing area 12, so that the occupied area of the coil panel assembly during installation can be effectively reduced, and the length and the width of cooking equipment can be reduced.

In order to improve the stability of the fixation of the coil panel assembly, the spacer 12 is provided with a plurality of connection holes 14, for example, the number of the connection holes 14 may be 2, 3 or 4, and they are distributed at intervals. The connecting hole 14 may be a circular hole or a threaded hole.

In one possible implementation, the fastener may be a screw, or the like.

The inner winding region 11 and the outer winding region 13 are provided with a plurality of convex ribs on the bottom wall, the convex ribs are arranged at intervals along the radial direction of the coil panel bracket 10, so that a plurality of winding grooves are respectively formed in the inner winding region 11 and the outer winding region 13 along the radial direction of the coil panel bracket 10 at intervals, the winding grooves are used for accommodating coils 20, and the positioning effect of the coils 20 is improved. The number of the wire grooves is not particularly limited, and the number of the wire grooves of the inner winding region 11 and the number of the wire grooves of the outer winding region 13 may be flexibly selected according to the use requirement.

In one possible implementation, the coils 20 may be in a non-closed configuration, i.e., end-to-end, or in a closed configuration, i.e., end-to-end.

In one possible implementation, the center of the coil panel bracket 10 is provided with a temperature measuring hole 17, and a temperature measuring element 60 is installed in the temperature measuring hole 17, and the temperature measuring element 60 is used for detecting the heating temperature. The temperature measuring element 60 may be a negative temperature coefficient thermistor (Negative Temperature Coefficient, abbreviated as NTC), and of course, the temperature measuring element 60 may be a thermocouple or the like.

In one possible implementation, referring to fig. 8, the diameter D of the coil disk holder 10 satisfies: d is more than or equal to 200mm. Increasing the diameter of the coil former support 10 is advantageous in improving the uniformity of heating.

In the coil panel assembly provided by the utility model, the coil panel bracket 10 is larger in diameter, and the occupied length and width space is larger during assembly, so that the occupied length and width space is saved, the appearance of cooking equipment is prevented from being larger, the connecting holes 14 are formed in the spacing area 12, and compared with the existing coil panel assembly, the connecting holes 14 are prevented from being formed by arranging the protruding parts at the edge of the coil panel bracket 10, and the occupied area is reduced.

In one possible implementation, the diameter D of the coil former support 10 may be 200mm, 206mm, 210mm, or the like.

In one possible embodiment, as shown with reference to fig. 2, 3 and 4, the magnetic shield 30 includes magnetic shielding pieces 31, at least two of the magnetic shielding pieces 31 being spaced apart at the edge of the coupling hole 14 in the circumferential direction of the coupling hole 14. The magnetic shield 30 has excellent electromagnetic isolation performance and can isolate magnetic lines of force, thereby preventing the fasteners penetrating through the connecting holes 14 from being heated to cause abnormal high temperature when the coil panel assembly works, and improving the use safety.

In one possible implementation, two magnetic shielding sheets 31 may be distributed on two opposite side edges of each connecting hole 14, so as to improve the magnetic shielding effect on the fastener. In addition, because the gaps are arranged between the adjacent magnetic isolating sheets 31, air flow can pass through the gaps between the adjacent magnetic isolating sheets 31, thereby being beneficial to radiating heat for the fastener and reducing the temperature rise of the fastener.

In one possible embodiment, the number of magnetism blocking sheets 31 may be two, which are spaced apart along the circumferential direction of the coupling hole 14, in consideration of the limited radial width of the spacing region 12, to avoid inconvenience in assembly. Of course, the number of the magnetism blocking sheets 31 may be three or more, which are distributed at intervals along the circumferential direction of the connection hole 14.

In one possible embodiment, referring to fig. 4, 5 and 6, the magnetism isolating sheet 31 may be rectangular parallelepiped, and its length l1×width l2×height H may be 6mm×1mm×3mm, or 8mm×2mm×6mm, to perform an effective magnetism isolating function, and to control the cost increase. Of course, the magnetism blocking sheet 31 may be in the shape of an arc segment or the like.

In one possible implementation, the magnetism isolating sheet 31 may be fixedly connected with the coil panel bracket 10 in a clamping and/or bonding manner, so that the installation is convenient and simple.

In one possible implementation, referring to fig. 7 and 8, the magnetic shield 30 includes a magnetism blocking ring 32, and a first hole 321 is formed inside the magnetism blocking ring 32, and the first hole 321 and the connection hole 14 communicate with each other. After the fastener is installed, the magnetism isolating ring 32 is arranged around the periphery of the fastener in a surrounding mode, so that no magnetic leakage gap exists in the 360-degree range of the circumference of the fastener, and the magnetism isolating effect is better. In addition, the magnetism isolating ring 32 is convenient to install, and the assembly process can be simplified.

In one possible implementation, the cross section of the magnetism blocking ring 32 may be circular or polygonal, for example, rectangular ring, regular hexagonal ring, or the like. The first hole 321 may be a circular hole or a square hole.

In one possible implementation, the magnetism isolating ring 32 may be fixedly connected with the coil panel bracket 10 in a clamping and/or bonding manner, so that the installation is convenient and easy.

In one possible implementation, referring to FIG. 11, the magnetic shield 30 includes a magnetic shield 33 covering at least one end of a fastener, the magnetic shield 33 including a top-sealed portion 331 and a peripheral portion 334 connected to an edge of the top-sealed portion 331, the top-sealed portion 331 and the peripheral portion 334 enclosing an isolation cavity 332, at least one end of the fastener being located within the isolation cavity 332. Under the action of the magnetism isolating cover 33, magnetic force lines radiated by the coil panel assembly during operation can be shielded and reflected by the magnetism isolating cover 33, so that the density and strength of magnetic force lines around the fastening piece are effectively reduced, the possibility of electromagnetic heating of the fastening piece is reduced, and the problem of overheating of the fastening piece is prevented.

In the case of a screw or a screw, the opening of the isolation cavity 332 faces the fastener, and the magnetism isolating cover 33 covers the head of the screw or the screw, so that magnetic force lines around the head of the fastener are isolated, thereby being beneficial to reducing the heating temperature of the fastener and improving the use safety.

In one possible implementation, the magnetic shielding cover 33 further includes a connection portion 333, the connection portion 333 is connected to an end of the peripheral edge portion 334 away from the top sealing portion 331, and the connection portion 333 is turned over to the outside of the shielding cavity 332, and the connection portion 333 is connected to the coil panel bracket 10. By providing the connection portion 333, the magnetism isolating cover 33 is facilitated to be fixed. The connection part 333 may be fixedly connected to the coil panel bracket 10 by means of a snap-fit and/or adhesive.

In one possible implementation, the capping portion 331 may be a plane or a curved surface, such as an arc surface, and the surrounding edge portion 334 may be inclined or vertical, which is flexibly selected according to the use requirement.

In one possible implementation, the capping portion 331, the peripheral edge portion 334, and the connecting portion 333 may be an integrally connected unitary structure.

In one possible implementation, considering the high cost of using high permeability materials, the magnetic shield 30 is a low permeability magnetic shield, i.e., the magnetic shield 30 is made of a low permeability material, such as aluminum or a surface aluminized composite, which prevents excessive cost increases while functioning as an electromagnetic shield.

In one possible implementation, referring to fig. 8, the magnetic shield 30 is disposed on the first surface of the coil disk support 10, and the magnetic shield 30 has a space between the coil 20, that is, a space > 0, so that the magnetic shield 30 is prevented from directly contacting the coil 20, and the safety of use is improved.

In one possible embodiment, the magnetic shield 30 is arranged on the second side of the coil disk carrier 10, i.e. the magnetic shield 30 is arranged on the side of the coil disk carrier 10 facing away from the coil 20. The magnetic shield 30 has an electromagnetic shielding effect on the fastener penetrating into the connection hole 14.

In one possible embodiment, it is also possible that the first face of the coil disk holder 10 is provided with a magnetic shield 30, and the second face of the coil disk holder 10 is also provided with a magnetic shield 30, improving the electromagnetic shielding effect against the fastener penetrating into the connection hole 14, preventing the fastener from being heated.

In one possible embodiment, the upper disk surface of the coil disk support 10 is provided with a first blocking rib 15 and a second blocking rib 16, the first blocking rib 15 is located between the inner winding region 11 and the spacing region 12, the second blocking rib 16 is located between the outer winding region 13 and the spacing region 12, and the magnetic shield 30 is abutted between the first blocking rib 15 and the second blocking rib 16.

In one possible embodiment, referring to fig. 10, a side of the magnetism blocking ring 32 facing the inner winding area 11 is a first vertical plane 322, and a side of the magnetism blocking ring 32 facing the outer winding area 13 is a second vertical plane 323. The occupation space of the magnetism isolating ring 32 is reduced, the first vertical plane 322 can be abutted with the first blocking rib 15, and the second vertical plane 323 can be abutted with the second blocking rib 16.

In one possible implementation, referring to fig. 7 and 9, the present utility model provides a coil disc assembly further including a magnetism collecting assembly 40, wherein the magnetism collecting assembly 40 includes a plurality of magnetic strips 41, and the plurality of magnetic strips 41 are distributed on the second surface of the coil disc support 10 in a radial direction of the coil disc support 10, that is, a surface of the coil disc support 10 facing away from the coil 20. The magnetic strip 41 has a magnetic focusing effect on the magnetic field, and simultaneously shields the magnetic force lines radiated downwards, prevents the metal table top or the metal object on which the cooking device is placed from being heated, and reduces electromagnetic leakage.

In one possible embodiment, the plurality of magnetic strips 41 are radially disposed on a side of the coil disk holder 10 facing away from the coil 20, i.e., one end of the magnetic strip 41 faces the center of the coil disk holder 10, and the other end of the magnetic strip 41 faces the edge of the coil disk holder 10. In order to improve the stability of the installation of the magnetic stripe 41, the bottom of the coil panel bracket 10 is provided with the installation groove 18, and the magnetic stripe 41 can be arranged in the installation groove 18 by pasting or in-mold injection molding.

In the present utility model, as shown in fig. 8, by providing the magnetic shield 30, the density and strength of magnetic lines of force passing around the fastener provided in the connection hole 14 are reduced when the coil panel assembly is in operation, and the concentration of magnetic lines of force is changed, thereby reducing the temperature at which the fastener is heated and preventing abnormal overheating of the screw fastener.

Referring to fig. 1 and 12, the present utility model also provides a cooking apparatus including a bottom chassis 50 and the above-described coil panel assembly coupled to an inner bottom wall surface of the bottom chassis 50 by a fastener penetrating into the coupling hole 14.

The cooking device provided by the utility model comprises, but is not limited to, an electromagnetic oven, an electric rice cooker or an electric pressure cooker.

In one possible implementation, the present utility model provides a coil disk assembly in which the side of the magnetic shield 30 remote from the coil disk support 10 is higher than the end of the fastener after installation, thereby improving the electromagnetic shielding effect.

In the case that the cooking apparatus provided in the embodiment of the present utility model is an induction cooker, the top of the bottom shell 50 is connected with the upper cover 51, the upper cover 51 and the bottom shell 50 are mutually buckled to form a containing cavity, the coil panel assembly is located in the containing cavity, the upper cover 51 is provided with a mounting hole 511, the mounting hole 511 may be a circular hole, the mounting hole 511 is fixedly connected with the panel 53, the panel is located right above the coil panel assembly, and the cooking container such as a pot is placed on the panel 53 during cooking.

A plurality of radiating holes 52 are formed in the periphery of the bottom shell 50 and used for radiating heat of the cooking equipment, four supporting feet 54 are connected to the bottom of the bottom shell 50, the four supporting feet 54 are respectively connected to four corner positions, and the placement stability of the cooking equipment is improved.

The accommodating cavity is also internally provided with a control board 90, a fan 80 and a lamp panel 70, wherein the fan 80, a coil panel assembly, a temperature measuring element 60 and the lamp panel 70 are electrically connected with the control board 90, the coil panel assembly is used for heating cookware and the like placed on cooking equipment, the power of the coil panel assembly is adjusted by the control board 90 according to the temperature detected by the temperature measuring element 60, the fan 80 is used for accelerating the convection speed of air in the accommodating cavity and outside air, the heat dissipation and cooling effects are achieved, and operating devices such as keys and indicator lamps and/or display devices can be arranged on the lamp panel 70.

When the cooker is used, the coil panel assembly is supplied with alternating current, an alternating magnetic field is generated around the coil 20, magnetic lines of force of the alternating magnetic field pass through the metal cooker bottom, and a large amount of eddy current is generated in the cooker bottom, so that heat required for cooking is generated.

In contrast, the coil disk assembly without the magnetic shield 30 can be operated at a temperature of up to 100 ℃ with the fastener, which is prone to softening, collapsing, etc. of the coil disk holder 10 to which the fastener is secured. In this embodiment, by providing the magnetic shield 30, the influence of magnetic lines of force generated by the coil 20 on the fastener can be reduced, the temperature of the fastener can be reduced by 40%, the possibility of abnormal high temperature of the fastener can be reduced, and the use safety can be improved.

It should be noted that, the numerical values and numerical ranges referred to in the present utility model are approximate values, and may have a certain range of errors due to the influence of the manufacturing process, and those errors may be considered to be negligible by those skilled in the art.

In the description of the present utility model, it should be understood that the terms "center", "length", "width", "thickness", "top", "bottom", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "axial", "circumferential", etc. are used to indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the referred location or element must have a specific orientation, in a specific configuration and operation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are 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 one or more such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

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

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (11)

1. A coil disk assembly, comprising: coil panel support (10), coil (20) and magnetic screen piece (30), coil panel support (10) have relative first face and second face, coil (20) set up in first face, connecting hole (14) have been seted up to coil panel support (10), connecting hole (14) run through first face with the second face, connecting hole (14) are used for connecting the fastener, magnetic screen piece (30) set up in the edge of connecting hole (14).

2. The coil disk assembly according to claim 1, wherein the magnetic shield (30) includes magnetic shield pieces (31), at least two of the magnetic shield pieces (31) being distributed at intervals along a circumferential direction of the connection hole (14) at edges of the connection hole (14).

3. The coil disk assembly according to claim 1, wherein the magnetic shield (30) includes a magnetism blocking ring (32), a first hole (321) is provided inside the magnetism blocking ring (32), and the first hole (321) and the connection hole (14) are mutually communicated.

4. The coil disk assembly as set forth in claim 1, wherein the magnetic shield (30) includes a magnetic shield (33) covering at least one end of the fastener, the magnetic shield (33) including a top-hat portion (331) and a peripheral edge portion (334) connected to an edge of the top-hat portion (331), the top-hat portion (331) and the peripheral edge portion (334) enclosing an isolation cavity (332), the at least one end of the fastener being located within the isolation cavity (332).

5. The coil disc assembly according to claim 4, wherein the magnetic shield (33) further comprises a connecting portion (333), the connecting portion (333) is connected to an end of the peripheral edge portion (334) away from the top sealing portion (331), the connecting portion (333) is folded towards the outside of the isolation cavity (332), and the connecting portion (333) is connected to the coil disc support (10).

6. Coil disc assembly according to any one of claims 1 to 5, characterized in that the magnetic shield (30) is a low permeability magnetic shield.

7. The coil disc assembly according to any one of claims 1 to 5, wherein the magnetic shield (30) is provided to the first face of the coil disc holder (10) with a space between the magnetic shield (30) and the coil (20); and/or the number of the groups of groups,

the magnetic shield (30) is provided on the second surface of the coil disk holder (10).

8. Coil disc assembly according to any of claims 1-5, characterized in that the diameter D of the coil disc holder (10) is such that: d is more than or equal to 200mm.

9. Coil disc assembly according to any of claims 1-5, characterized in that the first side of the coil disc holder (10) comprises an inner winding area (11), a spacer area (12) and an outer winding area (13), the inner winding area (11), the spacer area (12) and the outer winding area (13) are arranged in sequence from the centre of the coil disc holder (10) to the edge of the coil disc holder (10) in the radial direction of the coil disc holder (10), the coils (20) are arranged in the inner winding area (11) and the outer winding area (13), and the connecting holes (14) are located in the spacer area (12).

10. The coil disc assembly according to any one of claims 1-5, further comprising a magnetic focusing assembly (40), the magnetic focusing assembly (40) comprising a plurality of magnetic strips (41), the plurality of magnetic strips (41) being distributed at the second face of the coil disc support (10) at intervals from each other in a radial direction of the coil disc support (10).

11. A cooking apparatus comprising a bottom case (50) and the coil panel assembly according to any one of claims 1 to 10, the coil panel assembly being attached to an inner bottom wall surface of the bottom case (50) by a fastener penetrating into an attachment hole (14).