WO2016090814A1

WO2016090814A1 - Solenoid coil disk and electric cooking appliance having same

Info

Publication number: WO2016090814A1
Application number: PCT/CN2015/077547
Authority: WO
Inventors: 吴金华; 黄庶锋
Original assignee: 佛山市顺德区美的电热电器制造有限公司; 美的集团股份有限公司
Priority date: 2014-12-12
Filing date: 2015-04-27
Publication date: 2016-06-16
Also published as: CN105744666A; CN105744666B

Abstract

Disclosed is a solenoid coil disk, comprising a winding disk base assembly (3), a first coil (1) and a second coil (2), wherein the winding disk base assembly (3) has a first winding region (A1) and a second winding region (A2), and the winding disk base assembly (3) is provided with magnetic strips (4); and the first coil (1) is wound in the first winding region (A1), and the second coil (2) is wound in the second winding region (A2), wherein projections of the first winding region (A1) and the second winding region (A2) on a horizontal plane are staggered with each other.

Description

Electromagnetic coil disk and electric cooker having the same

Technical field

The invention belongs to the technical field of electric cookers, and in particular to an electromagnetic coil disk and an electric cooker having the electromagnetic coil disk.

Background technique

Current electric cookers, such as electromagnetic heating products (such as electromagnetic heating rice cookers, induction cookers, etc.), have electromagnetic coil plate parts, and some of the designed electric heating products are respectively wound around the bottom and the side of the coil disk, with the heating mode The demand for diversity increases, and the coils of different heating zones need to be independently controlled and have good heat dissipation performance. The existing structure of the coil disk has a large limitation and cannot meet the performance requirements of the product.

Summary of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Accordingly, it is an object of the present invention to provide an electromagnetic coil disk.

Another object of the present invention is to provide an electric cooker having the electromagnetic coil disk.

An electromagnetic coil disk according to an embodiment of the first aspect of the present invention, comprising: a bobbin holder assembly, the bobbin holder assembly having a first winding area and a second winding area, the bobbin holder assembly a magnetic strip is disposed thereon; a first coil, the first coil is wound around the first winding area; and a second coil is disposed around the second winding area, wherein the The first winding area is offset from the projection of the second winding area in the horizontal plane.

According to the electromagnetic coil disk of the embodiment of the present invention, by projecting the staggered first coil and the second coil on the horizontal plane, more heating modes can be realized by independently controlling the coils of different heating regions, so that the heating effect is good.

In some embodiments, the reel hub assembly has a bottom and a side surrounding the bottom, wherein a first winding area is disposed on one of the bottom and sides, and the second winding The area is provided on the other of the bottom and the side.

In some embodiments, the reel hub assembly includes a first bracket and a second bracket, the first bracket being coupled to the second bracket.

In some embodiments, the first bracket and the second bracket are fixed by a locking member, by a hot melt bracket or by a rotating snap structure.

In some embodiments, the first bracket and the second bracket are each formed in a concave shape and each include a bottom wall and an annular side wall surrounding the bottom wall, wherein the annular side of the first bracket and the second bracket The wall constitutes the side of the reel seat assembly, and the bottom walls of the first and second brackets form the bottom of the reel seat assembly.

Optionally, the first coil is wound around a first winding area at the bottom, and the second coil is wound at a second winding area at the side.

Optionally, the first coil is rounded or circular and is located on a bottom wall of the second bracket, and the second coil forms a circular shape around a sidewall of the first bracket.

The cross section of the annular side wall of the first bracket may be configured to be curved outwardly from top to bottom, wherein at least a portion of the second coil is wound around a side of the second bracket.

In some embodiments, the magnetic strip extends in a radial direction of the second bracket and is radially disposed on the second bracket.

Optionally, the magnetic strip includes: a first magnetic strip disposed at a bottom of the second bracket; a second magnetic strip disposed on a sidewall of the second bracket, wherein an imaginary length of the first magnetic strip is extended The imaginary length extension lines of the line and the second magnetic strip are staggered in the circumferential direction of the second holder.

In some embodiments, one of the first bracket and the second bracket has a concave shape.

Optionally, the second bracket is formed in a flat shape, the first bracket is formed in the concave shape and includes a bottom wall and an annular side wall surrounding the bottom wall, wherein the first bracket is An annular side wall constituting the side portion of the bobbin holder assembly, and a bottom of the bobbin holder assembly is constituted by the second bracket and a bottom wall of the first bracket; wherein the first coil Winding around the first winding area on the second bracket, and the second coil is wound around the second winding area on the side.

Optionally, the first bracket is formed in a flat shape, the second bracket is formed in the concave shape and includes a bottom wall and an annular side wall surrounding the bottom wall, wherein the second bracket is An annular side wall constituting the side portion of the bobbin holder assembly, and a bottom of the bobbin holder assembly is constituted by the second bracket and a bottom wall of the first bracket; wherein the first coil Winding around the first winding area on the first bracket, and the second coil is wound around a second winding area on the side.

In some embodiments, the first coil has a first inner lead and a first outer lead, the second coil has a second inner lead and a second outer lead; wherein the first outer lead and the first The two inner leads are connected to each other and form a common end connected to the circuit board, or the first outer lead and the second inner lead are connected to the same connection point of the circuit board.

In some embodiments, the first coil and the second coil are connected in parallel to a circuit board.

In some embodiments, the winding directions of the first coil and the second coil are the same, and the second coil loop Provided around the first coil, and the first coil is disposed coaxially with the second coil.

In some embodiments, the first winding region is formed by a plurality of first arcuate ribs in a radial and circumferential array, respectively, the first arcuate rib being integrally formed on the bobbin holder assembly bottom of.

The second winding region is formed by a plurality of second arcuate ribs in a radial and circumferential array, respectively, and the second arcuate rib is integrally formed on a side of the bobbin holder assembly.

An electric cooker according to an embodiment of the second aspect of the present invention, comprising: a pot body; an inner pot, the inner pot being disposed in the pot; and the electromagnetic coil disc according to the first aspect embodiment, the electromagnetic coil disc Between the inner pot and the pot body.

DRAWINGS

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from

1 is a plan view of a second bracket in an electromagnetic coil disk in accordance with an embodiment of the present invention;

Figure 2 is a perspective view of the second bracket shown in Figure 1;

Figure 3 is a perspective view of another angle of the second bracket shown in Figure 1;

4 is a plan view of a first bracket in an electromagnetic coil disk in accordance with an embodiment of the present invention;

Figure 5 is a perspective view of the first bracket shown in Figure 4;

Figure 6 is a plan view of an electromagnetic coil disk in accordance with an embodiment of the present invention;

Figure 7 is an exploded view of the electromagnetic coil disk shown in Figure 6.

Reference mark:

First coil 1; first inner lead 11; first outer lead 12;

a second coil 2; a second inner lead 21; a second outer lead 22;

a bobbin holder assembly 3; a first bracket 31; a second bracket 32;

a first winding area A1; a first curved rib A11;

a second winding area A2; a second curved rib A21;

Magnetic strip 4; first magnetic strip 41; second magnetic strip 42

detailed description

The embodiments of the present invention are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The following reference The embodiments described in the drawings are intended to be illustrative of the invention and are not to be construed as limiting.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "horizontal", "top", "bottom", "inner", "outer", "clockwise", The orientation or positional relationship of the "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present invention and simplifying the description. It is not intended or implied that the device or component that is referred to has a particular orientation, is constructed and operated in a particular orientation, and thus is not to be construed as limiting the invention. Moreover, the terms "first" and "second" 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, features defining "first" and "second" may include one or more of the features either explicitly or implicitly. In the description of the present invention, "a plurality" means two or more unless otherwise stated.

In the description of the present invention, it should be noted that the terms "installation", "connected", and "connected" are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components. The specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.

An electromagnetic coil disk according to an embodiment of the present invention, which is used in an electric cooker such as a rice cooker, an induction cooker or the like for heating, will be described below with reference to Figs.

An electromagnetic coil disk according to an embodiment of the present invention includes: a first coil 1, a second coil 2, and a reel base assembly 3. As shown in FIG. 7, the reel base assembly 3 has a first winding area A1 and a second winding area A2. The first coil 1 is wound around the first winding area A1, and the second coil 2 is wound around the second. The winding area A2, wherein the projection of the first winding area A1 and the second winding area A2 in the horizontal plane is staggered, wherein the first coil 1 and the second coil 2 can be separately controlled to be heated, can work simultaneously, or can work independently Two heat sources can be formed, and the two heat sources can be heated at the same time or independently. A magnetic strip 4 is disposed on the bobbin holder assembly 3, and the magnetic strip 4 may be disposed on the first bracket 31 and/or the second bracket 32. Further, the magnetic strip 4 may be radially disposed at the junction of the first coil 1 and the second coil 2 to generate an electromagnetic reaction with the first coil 1 and the second coil 2.

Thus, according to the electromagnetic coil disk of the embodiment of the present invention, by projecting the staggered first coil and the second coil on a horizontal plane, more heating modes can be realized by independently controlling coils of different heating regions, thereby heating effect it is good.

According to an embodiment of the invention, the reel base assembly 3 has a bottom and a side surrounding the bottom, wherein the first winding area A1 is provided on one of the bottom and the side, and the second winding area A2 is provided The bottom and the other side of the side. In this way, the first coil 1 and the second coil 2 can be corresponding to different heating regions, thereby achieving various heating effects. Easy to control independently by region. It will be understood that the directional terms "upper", "lower" and "bottom" and the like in this specification are merely relative concepts and should not be construed as limiting.

In a preferred embodiment of the present invention, as shown in FIG. 6 and FIG. 7, the winding directions of the first coil 1 and the second coil 2 are the same, the second coil 2 is looped around the first coil 1, and the first coil is 1 is coaxial with the second coil 2, that is, the axes of the first coil 1 and the second coil 2 may coincide or substantially coincide. It should be noted that the constraints such as coaxiality and coincidence described in this embodiment are considered. Processing error, assembly error, measurement error and other factors, which may also be substantially coaxial or coincident, are not coaxial in the strict sense of geometry. The first coil 1 and the second coil 2 can work simultaneously or independently. Two heat sources can be formed. The two heat sources can be heated simultaneously or independently. In specific applications, the first coil can be started simultaneously. 1. The second coil 2 can also alternately activate the first coil 1 and the second coil 2, or independently activate the first coil 1 or the second coil 2, which has many heating modes, good heating effect, and the first coil 1, the first coil The current passed by the two coils 2 is reversed, and there is a large mutual inductance and an equivalent self-inductance due to the proximity of the two coils. When the circuit is working, the generation of the equivalent self-inductance will change the charging and discharging momentum of the electromagnetic oscillation circuit. The IGBT may not be turned on and off at a lower voltage, the switching loss is large, and the device is easily damaged. Since the winding directions of the first coil 1 and the second coil 2 are the same and concentrically arranged, the direction of current passing through the two coils (the first coil 1 and the second coil 2) can be reversed during operation, thereby greatly reducing the inter-coil The coupled inductor reduces the influence on the resonant circuit, improves the reliability of the circuit, and has high heating efficiency and long service life.

Specifically, when viewed from the front of the reel assembly, the first coil 1 and the second coil 2 are all wound in a counterclockwise direction or both in a clockwise direction, regardless of whether they are viewed from the front or the back of the electromagnetic coil disc. The two coils (the first coil 1 and the second coil 2) are all in the same winding direction. For example, in the example shown in FIG. 6, the first coil 1 and the second coil 2 are all wound in a counterclockwise direction. In some alternative examples, such as shown in Figures 6 and 7, the projections of the first coil 1 and the second coil 2 on a horizontal plane are formed as a plurality of concentric circular rings.

Of course, those skilled in the art can understand that the third coil or the third coil and the fourth coil can be further disposed outside the second coil 2, and the number of the coils can be two or more, and the heating source The number can be set according to the actual situation.

In some embodiments of the present invention, as shown in FIG. 7, the reel base assembly 3 may include a first bracket 31 and a second bracket 32, and the first bracket 31 is coupled to the second bracket 32, wherein the first coil 1 The second coil 2 can be wound around the first bracket 31 or/and the second bracket 32. Thus, by dividing the bobbin holder assembly 3 into two portions and winding the different coils at different positions, the performance of the coil discs of different heating regions can be independently controlled.

Optionally, the first bracket 31 and the second bracket 32 are fixed by a locking member, by a heat fusion bracket or by a rotating snap structure. For example, the locking member may be a screw (not shown) or the like. In specific applications, the first bracket 31 and the first The two brackets 32 can also be fixed by a snap structure or the like.

A specific structure of the reel base assembly 3 according to an embodiment of the present invention will be described below with reference to Figs.

As shown in FIG. 1 to FIG. 5, the first bracket 31 and the second bracket 32 are each formed in a concave shape and each include a bottom wall and an annular side wall surrounding the bottom wall. Specifically, as shown in FIG. 5, the first The bracket 31 includes a first bottom wall 311 and a first annular side wall 312 surrounding the first bottom wall 311. As shown in FIG. 2, the second bracket 32 includes a second bottom wall 321 and a second ring surrounding the second bottom wall 321 The side wall 322, wherein the annular side wall 312 of the first bracket 31 and the annular side wall 322 of the second bracket 32 constitute a side portion of the reel base assembly 3, and the bottom wall 311 and the second bracket 32 of the first bracket 31 The bottom wall 321 constitutes the bottom of the reel base assembly 3, as shown in Figures 6 and 7. When the reel base assembly 3 according to an embodiment of the present invention is used for an electric cooker such as a rice cooker, the first bracket 31 is adjacent to the inner pot (not shown) of the rice cooker and the second bracket 32 is disposed away from the inner pot of the rice cooker.

In the following description, the first coil 1 is wound around the first winding area A1 at the bottom, and the second coil 2 is wound around the second winding area A2 located at the side as an example. Of course, it can be understood that the first coil 1 can also be wound around the side and the second coil 2 can be wound around the bottom and the like.

In the example shown in FIGS. 1-7, the first coil 1 is wound in a circular or circular shape and is located on the bottom wall 321 of the second bracket 32, and the second coil 2 surrounds the annular side wall 312 of the first bracket 31. An annular shape is formed, that is, the first coil 1 is wound around the bottom wall 321 of the second bracket 32, and the second coil 2 is wound around the annular side wall 312 of the first bracket 31. Of course, the first coil 1 is rounded or circular and is located on the bottom wall 311 of the first bracket 31 and the second coil 2 surrounds the side wall 322 of the second bracket 32 (not shown), and will also fall. It is within the scope of protection of the present invention.

Alternatively, as shown in FIG. 5, the cross section of the annular side wall of the first bracket 31 may be configured to be curved from top to bottom outward, wherein at least part of the second coil 2 is wound around the first The annular side wall 312 of the bracket 31 is on. This facilitates the arrangement of the second coil 2 in the circumferential direction, and the plurality of turns of the second coil 2 on the horizontal projection are spaced apart from each other in the radial direction, as shown in Figs.

As shown in FIG. 3, the first winding area A1 is formed by a plurality of first curved ribs A11 in a radial and circumferential array, respectively, and the first curved rib A11 is integrally formed on the bottom wall of the second bracket 32. In order to wind the first coil 1. Similarly, as shown in FIG. 5, the second winding area A2 is formed by a plurality of second curved ribs A21 in a radial and circumferential array, respectively, and the second curved rib A21 is integrally formed on the first bracket 31. On the annular side wall to wind the second coil 2.

According to some embodiments of the invention, the magnetic strip 4 may be incident on the second bracket 32. As shown in FIGS. 2 and 3, the magnetic strip 4 extends in the radial direction of the second bracket 32 and is radially disposed on the second bracket 32 to further improve the performance of the electromagnetic coil disk. Specifically, the magnetic strip 4 includes: a first magnetic strip 41 disposed at the bottom of the second bracket 32 and a second magnetic strip 42 disposed at a sidewall of the second bracket 32, wherein the imaginary length extension line of the first magnetic strip 41 and the first The imaginary length extension lines of the two magnetic strips 42 are staggered in the circumferential direction of the second holder 32.

The specific structure (not shown) of the reel base assembly 3 according to further two embodiments of the present invention will be briefly described below, wherein one of the first bracket 31 and the second bracket 32 has a concave shape.

According to a first alternative embodiment of the present invention, the second bracket 32 is formed in a flat shape, and the first bracket 31 is formed in a concave shape and includes a bottom wall 311 and an annular side wall 312 surrounding the bottom wall 311, wherein the first bracket The annular side wall 312 of the 31 constitutes the side of the reel base assembly 3, and the bottom of the reel base assembly 3 is constituted by the second bracket 32 and the bottom wall 311 of the first bracket 31; wherein the first coil 1 is wound around Located at the first winding area A1 on the second bracket 32, and the second coil 2 is wound around the second winding area A2 located on the side. At this time, the winding directions of the first coil 1 and the second coil 2 are the same, the second coil 2 is looped around the first coil 1, and the first coil 1 and the second coil 2 are coaxially disposed. The first winding area A1 is formed by a plurality of first curved ribs A11 in a radial and circumferential array, respectively. The first curved rib A11 is integrally formed on the second bracket 32, and the second winding area A2 is composed of The second curved ribs A21 are respectively formed in the radial and circumferential arrays, and the second curved ribs A21 are integrally formed on the annular side wall 312 of the first bracket 31. The rest of the settings are similar to the embodiments described above with reference to Figures 1 - 7, and will not be described in detail herein.

According to a second alternative embodiment of the present invention, the first bracket 31 is formed in a flat shape, and the second bracket 32 is formed in a concave shape and includes a bottom wall 321 and an annular side wall 322 surrounding the bottom wall 321, wherein the second The annular side wall 322 of the bracket 32 constitutes a side portion of the reel base assembly 3, and the bottom of the reel base assembly 3 is constituted by the bottom wall 321 of the second bracket 32 and the first bracket 31; wherein the first coil 1 is wound At the first winding area A1 on the first bracket 31, and the second coil 2 is wound around the second winding area A2 located on the side. At this time, the winding directions of the first coil 1 and the second coil 2 are the same, the second coil 2 is looped around the first coil 1, and the first coil 1 and the second coil 2 are coaxially disposed. The first winding area A1 is formed by a plurality of first curved ribs A11 in a radial and circumferential array, respectively. The first curved rib A11 is integrally formed on the first bracket 31, and the second winding area A2 is composed of The second arcuate ribs A21 are respectively formed in the radial and circumferential arrays, and the second arcuate ribs A21 are integrally formed on the annular side wall 322 of the second bracket 32. Similarly, the remaining settings are similar to the above-described embodiments with reference to FIGS. 1-7, and will not be described in detail herein.

In the above-mentioned embodiment, the first coil 1 can be wound around the second bracket 32, and the second coil 2 can be wound around the first bracket 31. Of course, the above embodiment is merely an illustrative description. The first coil 1 and the second coil 2 may also be wound around the first bracket 31 or simultaneously wound around the second bracket 32 (not shown).

In addition, according to some embodiments of the present invention, as shown in FIGS. 1 to 7, the first coil 1 has a first inner lead 11 and a first outer lead 12, and the second coil 2 has a second inner lead 21 and a second outer side. a lead 22; wherein the first outer lead 12 and the second inner lead 21 are connected to each other and form a common end connected to the circuit board, or the first outer lead 12 and the second inner lead 21 are connected to the same connection point of the circuit board; The inner lead 11 and the second outer lead are respectively connected to different connection points on the circuit board. Thus, the first coil 1 and the second coil 2 can be connected in parallel On the circuit board, the direction of current flowing through the first coil 1 and the second coil 2 may be reversed.

The present invention also provides an electric cooker (not shown), comprising: a cover body, a pot body, an inner pot and the electromagnetic coil disc according to the above embodiment, the cover body is rotatably coupled to the pot body, and the inner pot is disposed at In the pot body, the electromagnetic coil is disposed between the inner pot and the pot body, and the first coil 1 and the second coil 2 can form two independent heat sources, and the inner pot can be heated simultaneously or independently. Optionally, the second bracket 32 is disposed away from the inner pot, and the first bracket 31 is disposed adjacent to the outer pot. Specifically, the electric cooker may be a rice cooker or an electric pressure cooker or an electric cooker or an electric steamer or an induction cooker.

Since the winding directions of the first coil 1 and the second coil 2 are the same and concentrically arranged, the direction of current passing through the two coils can be reversed during operation, thereby greatly reducing the coupling inductance between the coils, thereby reducing the influence on the resonant circuit. Improve the reliability of the circuit, high heating efficiency and long service life. The first coil 1 and the second coil 2 can work simultaneously or independently. Two heat sources can be formed. The two heat sources can be heated simultaneously or independently. In specific applications, the first coil can be started simultaneously. 1. The second coil 2 can also alternately activate the first coil 1 and the second coil 2, or independently activate the first coil 1 or the second coil 2, which has many heating modes and good heating effect.

An electromagnetic coil disk and an electric cooker having the same according to an embodiment of the present invention, wherein the first coil and the second coil of the electromagnetic coil disk are respectively disposed in different winding regions, and the first winding region and the first winding region are respectively The projection of the two winding regions in the horizontal plane is staggered, so that the coupling inductance between the coils can be greatly reduced, thereby reducing the influence on the resonant circuit, the switching loss is small, the device is not easily damaged, the reliability of the circuit is improved, and the product heating efficiency is high. long lasting. The first coil 1 and the second coil 2 can work simultaneously or independently. Two heat sources can be formed. The two heat sources can be heated simultaneously or independently. In specific applications, the first coil can be started simultaneously. 1. The second coil 2 can also alternately activate the first coil 1 and the second coil 2, or independently activate the first coil 1 or the second coil 2, which has many heating modes and good heating effect.

Compared with the prior art, the coil disc of the present invention can respectively coil the coil to the first bracket and the second bracket in the production, and then fix the first bracket and the second bracket, and the operation of each process is simple and convenient, and the overall production efficiency is effective. The length of the lead wire can also be designed according to the standard design; the two coils can also be wound with wires of different specifications, different materials and different parameters to meet the different heating effects of different heating zones; in addition, the heat generated by the coils after energization respectively The first bracket and the second bracket are transmitted to each other, which greatly improves the heat dissipation effect; at the same time, the first bracket and the second bracket are coupled to each other, and have the function of pressing the coils to each other, thereby effectively preventing the coil from falling off.

In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples", etc. Particular features, structures, materials or features described in the examples or examples are included in at least one embodiment or example of the invention. In the present specification, the schematic representation of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or materials described The features may be combined in any suitable manner in any one or more embodiments or examples.

While the embodiments of the present invention have been shown and described, the embodiments of the invention may The scope of the invention is defined by the claims and their equivalents.

Claims

An electromagnetic coil disk, comprising:

a bobbin holder assembly (3) having a first winding area (A1) and a second winding area (A2), the winding reel assembly (3) being disposed There is a magnetic strip (4);

a first coil (1), the first coil (1) being wound around the first winding area (A1);

a second coil (2), the second coil (2) being wound around the second winding area (A2), wherein the first winding area (A1) and the second winding area (A2) The projections in the horizontal plane are staggered.
The electromagnetic coil disk according to claim 1, wherein said bobbin holder assembly (3) has a bottom portion and a side portion surrounding said bottom portion, wherein a first winding area (A1) is provided at said bottom portion And one of the side portions, and the second winding area (A2) is provided on the other of the bottom and the side.
The electromagnetic coil disk according to claim 2, wherein said reel base assembly (3) comprises a first bracket (31) and a second bracket (32), said first bracket (31) being connected On the second bracket (32).
The electromagnetic coil disk according to claim 3, wherein the first bracket (31) and the second bracket (32) are fixed by a locking member, fixed by a heat fusion bracket or by a rotary snap structure.
The electromagnetic coil disk according to claim 3, wherein said first bracket (31) and said second bracket (32) are each formed in a concave shape and each include a bottom wall and an annular side surrounding said bottom wall a wall, wherein the annular side walls of the first bracket (31) and the second bracket (32) constitute the side portion of the reel seat assembly (3), and the first bracket (31) and the The bottom wall of the second bracket (32) constitutes the bottom of the reel base assembly (3).
The electromagnetic coil disk according to claim 5, wherein said first coil (1) is wound around a first winding area (A1) at said bottom portion, and said second coil (2) is wound It is provided at the second winding area (A2) at the side.
The electromagnetic coil disk according to claim 6, wherein said first coil (1) is rounded or circular and is located on a bottom wall of said second bracket (32), said second The coil (2) forms a circular shape around the side wall of the first bracket (31).
The electromagnetic coil disk according to claim 7, wherein a cross section of the annular side wall of the first bracket (31) is configured to be curved from the top to the bottom, wherein the At least a portion of the two coils (2) are wound around a side of the second bracket.
The electromagnetic coil disk according to claim 5, wherein said magnetic strip (4) extends in a radial direction of said second holder (32) and is radially disposed on said second holder (32) )on.
The electromagnetic coil disk according to claim 9, wherein said magnetic strip (4) comprises:

a first magnetic strip (41) disposed at the bottom of the second bracket (32);

a second magnetic strip (42) disposed on a sidewall of the second bracket (32), wherein an imaginary length extension of the first magnetic strip (41) and an imaginary length of the second magnetic strip (42) are extended The wires are staggered in the circumferential direction of the second bracket (32).
The electromagnetic coil disk according to claim 3, wherein one of said first bracket (31) and said second bracket (32) has a concave shape.
The electromagnetic coil disk according to claim 11, wherein the second bracket (32) is formed in a flat shape, and the first bracket (31) is formed in the concave shape and includes a bottom wall and a surrounding The annular side wall of the bottom wall,

Wherein the annular side wall of the first bracket (31) constitutes the side portion of the bobbin holder assembly (3), and the bottom of the bobbin holder assembly (3) is covered by the second a bracket (32) and a bottom wall of the first bracket (31);

Wherein the first coil (1) is wound around the first winding area (A1) on the second bracket (32), and the second coil (2) is wound around the At the second winding area (A2) on the side.
The electromagnetic coil disk according to claim 11, wherein said first holder (31) is formed in a flat shape, and said second holder (32) is formed in said concave shape and includes a bottom wall and a surrounding The annular side wall of the bottom wall,

Wherein the annular side wall of the second bracket (32) constitutes the side of the reel base assembly (3), and the bottom of the reel base assembly (3) is covered by the second a bracket (32) and a bottom wall of the first bracket (31);

Wherein the first coil (1) is wound around the first winding area (A1) on the first bracket (31), and the second coil (2) is wound around At the second winding area (A2) on the side.
The electromagnetic coil disk according to any one of claims 1 to 13, characterized in that the first coil (1) has a first inner lead (11) and a first outer lead (12), the second The coil (2) has a second inner lead (21) and a second outer lead (22);

Wherein the first outer lead (12) is in contact with the second inner lead (21) and constitutes a common end connected to the circuit board, or the first outer lead (12) and the second inner lead (21) Connect to the same connection point on the board.
The electromagnetic coil disk according to claim 14, wherein said first coil (1) and said second coil (2) are connected in parallel to a circuit board.
The electromagnetic coil disk according to any one of claims 1 to 15, wherein a winding direction of the first coil (1) and the second coil (2) is the same, and the second coil ( 2) A ring is disposed around the first coil (1), and the first coil (1) is disposed coaxially with the second coil (2).
The electromagnetic coil disk according to any one of claims 1 to 16, wherein the first winding area (A1) is radially and circumferentially respectively formed by a plurality of first curved ribs (A11) The array is formed, and the first curved rib (A11) is integrally formed at the bottom of the reel base assembly (3).
The electromagnetic coil disk according to any one of claims 1 to 17, wherein the second winding area (A2) is radially and circumferentially respectively formed by a plurality of second curved ribs (A21) The array is formed, and the second curved rib (A21) is integrally formed on a side of the reel base assembly (3).
An electric cooker characterized by comprising:

Pot body

An inner pot, the inner pot being disposed in the pot body;

The electromagnetic coil disk according to any one of claims 1 to 18, wherein the electromagnetic coil disk is disposed between the inner pot and the pot body.