CN211656430U - Coil panel and electromagnetic heating device - Google Patents

Coil panel and electromagnetic heating device Download PDF

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Publication number
CN211656430U
CN211656430U CN201922497600.4U CN201922497600U CN211656430U CN 211656430 U CN211656430 U CN 211656430U CN 201922497600 U CN201922497600 U CN 201922497600U CN 211656430 U CN211656430 U CN 211656430U
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China
Prior art keywords
coil
disk
coil heating
magnetic
heating units
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CN201922497600.4U
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Chinese (zh)
Inventor
范吉昌
易亮
吴金华
张翼飞
郭兴家
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Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
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Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
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Priority to CN201922497600.4U priority Critical patent/CN211656430U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

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Abstract

The utility model discloses a coil panel and electromagnetic heating device. The coil panel comprises a panel seat, a plurality of coil heating units and a shielding piece, wherein the panel seat is provided with a mounting side; the coil heating units are arranged on the mounting side of the disc seat at intervals in a dispersed manner, and a spacing area is formed between every two adjacent coil heating units; the shielding piece is arranged on the installation side of the disk seat and corresponds to the coil heating unit, and is used for weakening the distribution of the magnetic field of the coil heating unit to the interval area. The magnetic isolation effect of the shielding piece is utilized, the distribution of the magnetic field of the weak coil heating unit to the interval area is reduced, so that the mutual interference or superposition of the magnetic fields of the adjacent coil heating units in the interval area is avoided, the problem of poor heating effect caused by the magnetic field interference or the magnetic field superposition is solved, and the product is safer to use.

Description

Coil panel and electromagnetic heating device
Technical Field
The utility model relates to an electromagnetic heating device technical field, concretely relates to coil panel and electromagnetic heating device.
Background
In the electromagnetic heating coil panel of the existing multi-coil heating unit, because a plurality of coil heating units are distributed on the panel seat, the magnetic field formed by the coil heating units can interfere or overlap with the area between the coil heating units at the adjacent positions, and further the heating effect of the adjacent positions is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a coil panel and electromagnetic heating device aims at improving the magnetic field interference and the superimposed problem that exist between the adjacent coil heating unit among the current many coil heating unit coil panel.
In order to achieve the above object, the present invention provides a coil panel, including:
a tray base having a mounting side;
the coil heating units are arranged on the installation side of the disc seat and are arranged at intervals in a dispersed manner, and an interval area is formed between every two adjacent coil heating units; and the number of the first and second groups,
and the shielding piece is arranged on the mounting side of the disk seat and corresponds to the coil heating unit and is used for weakening the distribution of the magnetic field of the coil heating unit to the interval area.
Optionally, the shield is disposed between two adjacent coil heating units.
Optionally, the number of the shielding members is multiple, and the shielding members are arranged in a radial manner from the center of the tray to the edge of the tray;
the plurality of coil heating units are correspondingly arranged in the areas among the plurality of shielding pieces.
Optionally, two adjacent coil heating units are symmetrically arranged about the shield.
Optionally, the shield comprises a magnetic strip.
Optionally, the coil disk further comprises a magnetic strip support, and the magnetic strip is mounted on the mounting side of the disk seat through the magnetic strip support.
Optionally, the magnetic stripe support has an inner end close to the center of the disk seat and an outer end close to the edge of the disk seat, and the inner end and the outer end are both provided with mounting grooves for accommodating the magnetic stripe.
Optionally, the shielding piece includes a magnetism isolating sheet, the magnetism isolating sheet extends from the disk seat to a direction away from the disk seat.
Optionally, a clamping groove is formed in the mounting side of the disk seat, and the magnetic shielding sheet is inserted into the clamping groove.
Optionally, the thickness of the magnetism isolating sheet is 0.2-2 mm.
Optionally, the magnetism isolating sheet is arranged to protrude from the coil heating unit in a direction away from the disk seat; and/or the presence of a gas in the gas,
the magnetism isolating sheet is arranged to protrude out of the coil heating unit in the direction from the center of the disk seat to the edge of the disk seat; and/or the presence of a gas in the gas,
the magnetic shielding sheet is arranged to protrude from the coil heating unit in a direction from the edge of the tray seat to the center of the tray seat.
Optionally, the shielding member includes a magnetic shielding portion, and the magnetic shielding portion is disposed on a side of the coil heating unit away from the tray and at least partially covers the coil heating unit.
Optionally, the coil panel further includes a plurality of outer magnetic strips, and is correspondingly disposed on a side of the coil heating unit away from the panel seat, and the magnetic isolation portion is disposed on a side of the outer magnetic strip away from the coil heating unit.
Optionally, the coil heating unit has an inner end close to the center of the tray, an outer end far from the center of the tray, and two side portions close to the adjacent coil heating units, wherein in any two adjacent coil heating units, at least one cover of the two adjacent side portions is provided with the magnetism isolating portion.
Optionally, the thickness of the magnetism isolating part is 0.2-2 mm.
Optionally, the tray includes a bottom portion and a side portion extending from a periphery of the bottom portion toward one side.
Optionally, a plurality of the coil heating units are uniformly distributed along the circumferential direction of the tray, and each of the coil heating units is simultaneously distributed on the bottom portion, the side portion and the connecting portion of the bottom portion and the side portion.
Optionally, each coil heating unit extends from the bottom of the tray to the side of the tray, and the coil heating units are arranged in a curved shape adapted to the tray in the circumferential direction of the tray and/or in the direction from the bottom to the side of the tray.
The utility model also provides an electromagnetic heating device, including the coil panel, the coil panel includes:
a tray base having a mounting side;
the coil heating units are arranged on the installation side of the disc seat and are arranged at intervals in a dispersed manner; and the number of the first and second groups,
and the shielding piece is arranged on the mounting side of the disk seat and corresponds to the coil heating units and is used for shielding at least part of magnetic field interference among the coil heating units.
The utility model provides an among the technical scheme, set up a plurality of coil heating units that are dispersion interval and set up on the disk seat, it sets up the shielding part to correspond coil heating unit, utilize the magnetism effect that separates of shielding part, the magnetic field that has reduced coil heating unit is to interval regional distribution, thereby the magnetic field of having avoided adjacent coil heating unit disturbs each other or superposes at interval region, and then solved because of the relatively poor problem of heating effect that magnetic field interference or magnetic field stack lead to, also make the use of product safer.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of a coil panel according to the present invention;
FIG. 2 is an exploded view of the coil disk of FIG. 1;
fig. 3 is a schematic structural diagram of another embodiment of a coil panel according to the present invention;
FIG. 4 is an exploded view of the coil disk of FIG. 3;
FIG. 5 is a top view of the coil disk of FIG. 3;
FIG. 6 is a detail view taken at A in FIG. 3;
fig. 7 is a schematic structural diagram of another embodiment of a coil panel according to the present invention;
fig. 8 is an exploded view of the coil disk of fig. 7.
The reference numbers illustrate:
reference numerals Name (R) Reference numerals Name (R)
100 Coil panel 4 Shielding element
1 Dish seat 4a Magnetic strip
2 Coil heating unit 41 Magnetic strip support
21 Coil heating unit α 411 Inner end
211 Right side portion α 412 Outer end of
22 Coil heating unit β 4b Magnetic isolation sheet
221 Left side β 4c Magnetic isolation part
3 Outer magnetic strip 5 Clamping groove
The object of the present invention is to provide a novel and advantageous solution for the above mentioned problems.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
In an existing electromagnetic heating coil panel with multiple coil heating units, due to the fact that the coil heating units are distributed on a panel seat, magnetic fields formed by the coil heating units at adjacent positions can interfere with each other, and heating intensity and heating area of the adjacent positions are further affected.
In view of this, the utility model provides an electromagnetic heating device, electromagnetic heating device include but not limited to electromagnetism stove, electric rice cooker, fry in shallow oil roast machine or pressure cooker. Specifically, the electromagnetic heating device is provided with a coil panel 100 (the specific structure of the coil panel 100 is described in detail below), and the electromagnetic heating device provided with the coil panel 100 is the electromagnetic heating device of the present invention. For understanding the technical solution and the effect of the utility model, now explain with electric rice cooker as an example, coil panel 100 is set up the below at electric rice cooker's interior pot usually, and the magnetic field that coil panel 100 produced acts on the interior pot of magnetic conduction material, and turns into the heat field on the pot including, makes interior pot generate heat to reach the purpose that the edible material that holds in the pot heats in to.
Fig. 1 to 8 illustrate an embodiment of a coil panel 100 according to the present invention.
Referring to fig. 1, 3 and 7, in the present embodiment, the coil plate 100 includes a plate base 1, a plurality of coil heating units 2 and a shielding member 4. The tray base 1 has a mounting side; the coil heating units 2 are arranged on the installation side of the disc seat 1 at intervals, and an interval area is formed between every two adjacent coil heating units 2; the shielding member 4 is disposed on the mounting side of the tray 1 and corresponding to the coil heating unit 2, so as to weaken the magnetic field of the coil heating unit 2 toward the spaced area.
When a plurality of coil heating units 2 are disposed at discrete intervals on the tray 1, the winding direction of each coil heating unit 2 may be either counterclockwise or clockwise, and therefore, the winding direction of two adjacent coil heating units 2 may be the same or the winding direction of two adjacent coil heating units 2 may be opposite. When the winding directions of two adjacent coil heating units 2 are the same, the directions of the magnetic fields generated by the two coil heating units 2 are the same, so that superposition can be formed in the interval region, and the temperature of the inner pot corresponding to the interval region is far higher than the temperature of the inner pot corresponding to other positions; when the winding directions of the two adjacent coil heating units 2 are opposite, the directions of the magnetic fields generated by the two coil heating units 2 are opposite, so that magnetic field interference is formed in the interval region, and further, the heating intensity of the interval region is reduced and the heating area is reduced. In this embodiment, the shielding member 4 is disposed corresponding to the coil heating unit 2, and the magnetic shielding effect of the shielding member 4 is utilized to weaken the distribution of the magnetic field of the coil heating unit 2 to the spacing region, specifically, for the condition of magnetic field superposition, the shielding member 4 blocks the magnetic field of the coil heating unit 2 distributed to the spacing region, so that the superposition of the magnetic fields in the same direction of two adjacent coil heating units 2 is improved, the overhigh temperature of the spacing region due to magnetic field reinforcement is avoided, the coil panel 100 is uniformly heated at each position, and the heating effect is improved; for the condition of magnetic field interference, the shielding part 4 obstructs the magnetic fields distributed from the coil heating units 2 to the interval area, thereby avoiding mutual interference of the magnetic fields in different directions of the two adjacent coil heating units 2, solving the problems of reduction of heating intensity and reduction of heating area caused by the magnetic field interference, and further improving the heating effect. In addition, the shielding part 4 can also obstruct the magnetic field generated by the coil heating unit 2 and facing away from the direction of the coil base 1, thereby preventing the magnetic leakage of the coil panel 100, further strengthening the heating effect and ensuring the use of the product to be safer.
Specifically, the coil heating unit 2 has a heating effect on the inner pot by forming a magnetic field. Referring to fig. 1, taking the case that the coil panel 100 includes four coil heating units 2 as an example, in this embodiment, four coil heating units 2 are provided, and the four coil heating units 2 are dispersedly and alternately arranged on the tray base 1, the four coil heating units 2 correspondingly form four heating points on the inner pot, thereby forming four thermal fields distributed at intervals, because the food material can roll to the low temperature zone along the high temperature zone of each thermal field, the rolling path of the food material is no longer single, thereby the food material in the inner pot is rolled more vigorously, and further the nutrient components in the food material are more thoroughly separated out. In addition, the shielding element 4 may be any component having a magnetic shielding function, such as a magnetic strip 4a, a baffle plate or a cover body made of a magnetic shielding material, and the like, and the shielding element 4 is installed corresponding to the coil heating unit 2, for example, below or on one side of the coil heating unit 2, so as to help shield at least a part of magnetic field interference existing between the coil heating units 2, and solve the problems of reduced heating strength and reduced heating area caused by the magnetic field interference.
The shield 4 has different mounting manners depending on the structure of the shield 4.
Referring to fig. 1 and 3, in the present embodiment, a plurality of coil heating units 2 are disposed at the mounting side of the tray 1 at intervals, so as to form a plurality of mutually independent heating areas, a spacing area is reserved between the corresponding mounting positions of two adjacent coil heating units 2 on the mounting side of the tray 1, and the shielding member 4 is disposed at the spacing area.
Since a plurality of coil heating units 2 are provided, a plurality of spaced-apart regions correspondingly exist, and therefore, a plurality of shields 4 are provided, specifically, one shield 4 is provided for each spaced-apart region. Each shielding piece 4 all extends the setting to the direction at base 1 edge along base 1 center, and demonstrate a plurality of shielding pieces 4 on the whole and be radial arrangement from base 1 center to base 1 edge, thereby make and all be provided with shielding piece 4 between arbitrary two adjacent coil heating unit 2, make the magnetic field that each coil heating unit 2 produced can both be relatively independent and can not receive the influence in 2 magnetic fields of adjacent coil heating unit, thereby the even heating effect of a plurality of heating regions has been promoted.
In this embodiment, the shielding element 4 is used to separate the magnetic fields generated by the two adjacent coil heating units 2 in the separation area from each other at two sides of the shielding element 4, so as to avoid the magnetic fields generated by the two coil heating units 2 from causing interference or superposition in the separation area due to the superposition, and further to influence the heating effect, therefore, the installation position of the shielding element 4 only needs to be controlled in the separation area and can ensure that the magnetic fields of the coil heating units 2 at two sides can have the magnetic separation effect, but in consideration of the magnetic separation effect balance of the coil heating units 2 at two sides, the two adjacent coil heating units 2 in this embodiment are symmetrically arranged with respect to the shielding element 4, so that the coil heating units 2 at two sides are uniformly heated.
In an embodiment of the invention shown in fig. 1-2, the shielding 4 comprises a magnetic strip 4 a. The magnetic strips 4a are arranged in the spacing areas to intercept the magnetic energy in the spacing areas, so that part of the magnetic field distributed to the spacing areas by the coil heating unit 2 is blocked. When the winding directions of the two coil heating units 2 on the two sides of the magnetic stripe 4a are the same, the temperature of the interval area is too high due to the fact that the magnetic fields are overlapped in the interval area due to the fact that the magnetic fields distributed to the interval area by the two coil heating units 2 are blocked; when the two coil heating units 2 on both sides of the magnetic stripe 4a are wound in opposite directions, the magnetic fields of the two coil heating units 2 cannot interfere with each other in the gap region accordingly. Simultaneously, because magnetic stripe 4a self also can produce certain magnetic field, through the extending direction of adjustment magnetic stripe 4a to can increase coil heating unit 2's magnetic field intensity, and then promote coil panel 100's heating effect.
The utility model discloses do not restrict the shape of magnetic stripe 4a, its shape can be linear type or arc etc. and specific shape can adapt to the regional shape in interval and adjust.
The magnetic strip 4a is installed in various ways, such as gluing, installation through an installation structure, etc., the fixing effect of the gluing way is poor, the production efficiency is low, and the way of installing the magnetic strip 4a through the installation structure is preferred in the embodiment. Specifically, this embodiment coil panel still includes magnetic stripe support 41, and magnetic stripe 4a passes through magnetic stripe support 41 to be installed on the installation side of disk seat 1, and like this, can install magnetic stripe support 41 on disk seat 1 earlier, settle magnetic stripe 4a on magnetic stripe support 41 again, and not only the installation effectiveness is high, helps dismouting and change magnetic stripe 4a moreover. The magnetic strip support 41 can be fixed on the installation side through screws or other connectors, and the magnetic strip support 41 can also be fixed on the installation side through a welding mode by arranging a hot melting column on the installation side.
Further, the magnetic strip support 41 is provided with an inner end 411 close to the center of the disk seat 1 and an outer end 412 close to the edge of the disk seat 1, the inner end 411 and the outer end 412 are both provided with mounting grooves, and the magnetic strip 4a is embedded in the mounting grooves. The magnetic stripe 4a sets up respectively at the inner 411 and the outer end 412 of magnetic stripe support 41, and magnetic stripe support 41 can adapt to the structure of the shape selection of interval region and the shape adaptation of interval region, not only makes the fixed effect of magnetic stripe support 41 and disk seat 1 more firm, still makes the shape and the mounting means of magnetic stripe 4a more nimble, need not adjust the shape of magnetic stripe 4a, can suit with the shape of interval region well, separates magnetism effectually.
In another embodiment of the present invention shown in fig. 3 to 6, the shielding member 4 includes a magnetic shielding sheet 4b, and the magnetic shielding sheet 4b may be a metal sheet, such as an aluminum sheet, or may be a sheet structure made of other shielding materials. In this embodiment, magnetism isolating sheet 4b installs in the installation side of disk seat 1 and is located the interval region, and extend the setting to the direction of keeping away from disk seat 1, under magnetism isolating sheet 4 b's demagnetization, the magnetic field of magnetism isolating sheet 4b one side can't pass magnetism isolating sheet 4b and produce the influence to the magnetic field of opposite side, thereby reduced the magnetic field interference or the stack between two adjacent two liang of coil heating units 2 well, and then strengthened the heating stability of multicoil heating unit 2.
In order to install the magnetism isolating sheet 4b, as shown in fig. 6, a clamping groove 5 is formed on the installation side of the disk seat 1 in the embodiment, the clamping groove 5 extends along the center of the disk seat 1 towards the edge of the disk seat 1, and the magnetism isolating sheet 4b is inserted into the clamping groove 5.
The thickness of the magnetism-isolating sheet 4b is too small, the magnetism-isolating effect is too poor, and the thickness is too large, the cost of the magnetism-isolating sheet 4b is increased, and the thickness of the magnetism-isolating sheet 4b in the embodiment is preferably 0.2-2 mm.
In addition, the height and the extension length of the magnetism isolating sheet 4b can be optimized to better block magnetic field interference. Specifically, there may be the following three schemes: referring to fig. 6, in the direction away from the seat 1, the magnetism isolating sheet 4b is disposed protruding from the coil heating unit 2, that is, on the same circumference of the seat 1, the height a1 of the magnetism isolating sheet 4b is higher than the height a2 of the coil heating unit 2, so as to isolate magnetism well in the vertical direction; referring to fig. 4, in the direction from the center of the seat 1 to the edge of the seat 1, the magnetic shielding sheet 4B protrudes from the coil heating unit 2, i.e. the distance B1 is smaller than the distance B2; the magnetic shield 4b is disposed to protrude from the coil heating unit 2 in a direction from the edge of the disk holder 1 toward the center of the disk holder 1, i.e., the interval C1 is smaller than the interval C2.
It should be noted that, in the specific implementation, one of the three schemes may be selected to set the magnetism isolating sheet 4b, or two or three schemes may be simultaneously selected and combined to set the magnetism isolating sheet 4b, and obviously, when the three schemes are combined, the magnetism isolating sheet 4b has the best shielding effect on the magnetic field.
In addition, in another embodiment of the present invention shown in fig. 7 to 8, the shielding member 4 may further include a magnetic shielding portion 4 c. The magnetic shielding portion 4c may be a cover plate or a metal sheet made of metal, such as an aluminum sheet, or may be made of other shielding materials. Since the magnetic field entering the magnetic shielding portion 4c is absorbed by the magnetic shielding portion 4c, and the magnetic shielding portion 4c covers the coil heating unit 2, the magnetic field can be blocked from passing through the magnetic shielding portion 4c, so as to achieve a shielding effect.
The magnetic shielding portion 4c may be fixed by a screw or other connecting member, or may be fixed by heat fusion.
The coil heating units 2 have an inner end portion near the center of the tray 1, an outer end portion away from the center of the tray 1, a left side portion near the left-side adjacent coil heating unit 2, and a right side portion near the right-side adjacent coil heating unit 2. When the magnetism isolating portion 4c partially covers the coil heating units 2, in any adjacent two coil heating units 2, at least one of the adjacent two side portions is provided with the magnetism isolating portion 4 c. As shown in fig. 7, when the coil heating unit α 21 is adjacent to the coil heating unit β 22, and the right side portion α 211 of the coil heating unit α 21 is adjacent to the left side portion β 221 of the coil heating unit β 22, the magnetic shielding portion 4c may be covered on the right side portion α 211 or the left side portion β 221, or the magnetic shielding portions 4c may be covered on both the right side portion α 211 and the left side portion β 221, so that magnetic field interference or magnetic field superposition between the coil heating unit α 21 and the coil heating unit β 22 can be reduced, and the heating stability of the coil heating unit α 21 and the coil heating unit β 22 can be ensured. Further, providing the magnetism isolating portion 4c partially covering the coil heating unit 2 not only can save the amount of use of the raw material of the magnetism isolating portion 4c, but also can avoid overheating of the coil heating unit 2.
The thickness of the magnetic shield 4c is preferably 0.2 to 2 mm.
In order to further strengthen the heating intensity and the heating range of the coil panel, the coil panel 100 of the present embodiment may further include a plurality of outer magnetic strips 3, the plurality of outer magnetic strips 3 are correspondingly disposed on one side of the plurality of coil heating units 2 away from the panel base 1, and the outer magnetic strips 3 may guide the magnetic flux density of the magnetic field generated by the coil heating units 2 to be more balanced, so as to improve the heating intensity and the heating range.
Further, in the present embodiment, the magnetic isolation portion 4c is disposed on a side of the outer magnetic stripe 3 away from the coil heating unit 2, which helps to better dissipate heat, and also avoids the magnetic isolation portion 4c interfering with the magnetic field of the outer magnetic stripe 3.
Besides, in the technical solution of the present invention, the tray base 1 includes a bottom and a side portion extending from the periphery of the bottom toward one side.
In order to ensure the uniform heating effect of the coil panel 100, the present embodiment has a plurality of coil heating units 2 uniformly distributed along the circumferential direction of the coil base 1, and ensures that each coil heating unit 2 is simultaneously distributed at the bottom, the side, and the connection between the bottom and the side, so that the heating areas of the coil panel 100 are uniformly distributed, and the heating effect of the coil panel 100 is equivalent at all positions.
Specifically, each coil heating unit 2 extends to the lateral part of dish seat 1 from the bottom of dish seat 1, and in the direction from the bottom of dish seat 1 to the lateral part, coil heating unit 2 is the crooked form setting with dish seat 1 looks adaptation, the shape of coil heating unit 2 cooperation dish seat 1's installation side changes promptly, thereby make in this direction, coil heating unit 2 keeps equivalent with the interval of dish seat 1 each department, correspondingly, coil heating unit 2 also can keep equivalent with interior pot distance in this direction, and then make coil heating unit 2 can be to interior pot even heating in this direction.
The coil heating unit 2 of the present embodiment may also be disposed in a curved shape in the circumferential direction of the tray base 1, so that the coil heating unit 2 is adapted to the shape of the mounting side of the tray base 1 in the circumferential direction, and therefore, in the circumferential direction, the coil heating unit 2 is also equivalent to the distance between the tray base 1 and the coil heating unit 2 in each position, accordingly, the distance between the coil heating unit 2 and the inner pot in the circumferential direction is also equivalent to the distance between the inner pot and the inner pot in the circumferential direction, and further, the coil heating unit 2 may heat the inner pot uniformly in the circumferential direction.
As a preferred embodiment, the coil heating unit 2 of the present embodiment is disposed in a curved shape adapted to the dish seat 1 in the circumferential direction of the dish seat 1 and in the direction from the bottom to the side of the dish seat 1, so that the coil heating unit 2 can uniformly heat the inner pot in both the circumferential direction and the direction from the bottom to the side of the dish seat 1.
The above is only the optional embodiment of the present invention, and not the limit of the patent scope of the present invention, all the equivalent structures made by the contents of the specification and the drawings are utilized, or directly or indirectly applied to other related technical fields, and all the same principles are included in the patent protection scope of the present invention.

Claims (19)

1. A coil disc, comprising:
a tray base having a mounting side;
the coil heating units are arranged on the installation side of the disc seat and are arranged at intervals in a dispersed manner, and an interval area is formed between every two adjacent coil heating units; and the number of the first and second groups,
and the shielding piece is arranged on the mounting side of the disk seat and corresponds to the coil heating unit and is used for weakening the distribution of the magnetic field of the coil heating unit to the interval area.
2. The coil disk as claimed in claim 1, wherein said shield is disposed between adjacent two of said coil heating units.
3. The coil disk as claimed in claim 2, wherein said shield member is provided in plurality, and a plurality of said shield members are arranged radially from the center of said disk seat toward the edge of said disk seat;
the plurality of coil heating units are correspondingly arranged in the areas among the plurality of shielding pieces.
4. The coil disk as claimed in claim 2, wherein adjacent two of said coil heating units are disposed symmetrically with respect to said shield.
5. Coil disk according to one of claims 2 to 4, characterized in that the shielding comprises a magnetic strip.
6. The coil disk as claimed in claim 5, further comprising a magnetic strip holder, the magnetic strip being mounted on the mounting side of the disk holder by the magnetic strip holder.
7. The coil disk as claimed in claim 6, wherein said magnetic strip holder has an inner end near the center of said disk seat and an outer end near the edge of said disk seat, said inner end and said outer end each being provided with a mounting groove for receiving said magnetic strip.
8. A coil disk according to any one of claims 2 to 4, wherein the shield comprises a magnetic shield sheet which is provided so as to extend from the disk seat in a direction away from the disk seat.
9. The coil panel according to claim 8, wherein a mounting side of the panel base is provided with a slot, and the magnetic shielding sheet is inserted into the slot.
10. The coil disk as claimed in claim 8, wherein the thickness of the magnetic shield sheet is 0.2 to 2 mm.
11. The coil disk as claimed in claim 8, wherein said magnetic shield sheet is disposed to protrude from said coil heating unit in a direction away from said disk holder; and/or the presence of a gas in the gas,
the magnetism isolating sheet is arranged to protrude out of the coil heating unit in the direction from the center of the disk seat to the edge of the disk seat; and/or the presence of a gas in the gas,
the magnetic shielding sheet is arranged to protrude from the coil heating unit in a direction from the edge of the tray seat to the center of the tray seat.
12. The coil disk according to claim 1, wherein the shield includes a magnetism shielding portion that is provided on a side of the coil heating unit away from the disk holder and that at least partially covers the coil heating unit.
13. The coil panel as claimed in claim 12, wherein the coil panel further comprises a plurality of outer magnetic strips correspondingly disposed on a side of the plurality of coil heating units away from the panel base, and the magnetic shielding portion is disposed on a side of the outer magnetic strips away from the coil heating units.
14. The coil disk as claimed in claim 12, wherein said coil heating units have an inner end portion near the center of said disk seat, an outer end portion far from the center of said disk seat, and two side portions near adjacent ones of said coil heating units, wherein in any adjacent two of said coil heating units, at least one of the covers in adjacent two of said side portions is provided with said magnetism isolating portion.
15. The coil disk as claimed in claim 12, wherein the thickness of the magnetism isolating part is 0.2 to 2 mm.
16. The coil disk as claimed in claim 1, wherein said disk holder includes a bottom portion and a side portion extending from a periphery of said bottom portion toward one side.
17. The coil disk as claimed in claim 16, wherein a plurality of said coil heating units are uniformly distributed along a circumference of said disk holder, and each of said coil heating units is simultaneously distributed at said bottom portion, said side portion and a junction of said bottom portion and said side portion.
18. The coil disk as claimed in claim 16, wherein each of said coil heating units extends from the bottom of said disk seat to the side of said disk seat, and said coil heating units are disposed in a curved shape adapted to said disk seat in the circumferential direction of said disk seat and/or in the direction from the bottom to the side of said disk seat.
19. An electromagnetic heating device comprising a coil disk as claimed in any one of claims 1 to 18.
CN201922497600.4U 2019-12-31 2019-12-31 Coil panel and electromagnetic heating device Active CN211656430U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922497600.4U CN211656430U (en) 2019-12-31 2019-12-31 Coil panel and electromagnetic heating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922497600.4U CN211656430U (en) 2019-12-31 2019-12-31 Coil panel and electromagnetic heating device

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