CN107259967A - A kind of cooking ware, electromagnetic heating apparatus and magnetic conductive board - Google Patents

A kind of cooking ware, electromagnetic heating apparatus and magnetic conductive board Download PDF

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Publication number
CN107259967A
CN107259967A CN201610217233.6A CN201610217233A CN107259967A CN 107259967 A CN107259967 A CN 107259967A CN 201610217233 A CN201610217233 A CN 201610217233A CN 107259967 A CN107259967 A CN 107259967A
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CN
China
Prior art keywords
cooking ware
bottom wall
slot segmentation
side wall
magnetic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610217233.6A
Other languages
Chinese (zh)
Inventor
马志海
王志锋
伍世润
江太阳
区达理
冯江平
刘志才
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Original Assignee
Midea Group Co Ltd
Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Midea Group Co Ltd, Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd filed Critical Midea Group Co Ltd
Priority to CN201610217233.6A priority Critical patent/CN107259967A/en
Publication of CN107259967A publication Critical patent/CN107259967A/en
Pending legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00Cooking-vessels
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00Cooking-vessels
    • A47J27/08Pressure-cookers; Lids or locking devices specially adapted therefor
    • A47J27/086Pressure-cookers; Lids or locking devices specially adapted therefor with built-in heating means
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00Parts, details or accessories of cooking-vessels
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00Parts, details or accessories of cooking-vessels
    • A47J36/02Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00Parts, details or accessories of cooking-vessels
    • A47J36/24Warming devices
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00Parts, details or accessories of cooking-vessels
    • A47J36/24Warming devices
    • A47J36/2483Warming devices with electrical heating means
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J37/00Baking; Roasting; Grilling; Frying
    • A47J37/06Roasters; Grills; Sandwich grills
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J37/00Baking; Roasting; Grilling; Frying
    • A47J37/06Roasters; Grills; Sandwich grills
    • A47J37/0623Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity
    • A47J37/0629Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity with electric heating elements
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J37/00Baking; Roasting; Grilling; Frying
    • A47J37/06Roasters; Grills; Sandwich grills
    • A47J37/08Bread-toasters

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Induction Heating Cooking Devices (AREA)
  • Cookers (AREA)
  • Baking, Grill, Roasting (AREA)

Abstract

Magnetic conductive board the present invention relates to the electromagnetic heating apparatus of a kind of cooking ware including cooking ware and for cooking ware.The cooking ware includes bottom wall and side wall, the bottom wall and side wall at least within one outer surface be provided with slot segmentation, the bottom wall and/or side wall are divided into several magnetic inductive blocks by the slot segmentation, and the single magnetic inductive block interior energy produces independent circular induced current during Electromagnetic Heating.Using technical scheme, the noise that cooking ware is sent in Electromagnetic Heating can be effectively reduced.

Description

A kind of cooking ware, electromagnetic heating apparatus and magnetic conductive board
Technical field
The present invention relates to household electrical appliance technical field, more particularly to a kind of cooking ware, electromagnetic heating apparatus and magnetic conductive board.
Background technology
Fig. 1 is electromagnetic heating circuit schematic diagram.Civil power (assuming that civil power is just 50HZ, without deviation) passes through rectifier bridge Afterwards, become as shown in (1), i.e., not only there are 100HZ fundamental waves, and produce new harmonic wave, such as 200,300,400,500hz etc. Deng, these harmonic waves by electric capacity and rear class electrical equipment, but it is corresponding strengthen, and eventually arrive at coil panel and cooking ware.IGBT In switching process (assuming that switching frequency is 20Khz), then new fundamental wave, i.e. 20Khz are produced again, because IGBT is operated in high pressure Environment (more than 1KV), is easy to interfere with each other by PCB trace at higher frequencies, between high pressure, produces new harmonic wave, 5K~more than 20Khz as shown in figure (2), but human auditory system scope is 20hz~20Khz, and compared with human ear, more than 20Khz makes an uproar Sound can be ignored, therefore mainly civil power fundamental wave 100HZ, harmonic wave (200,300,400,500 etc.) and 5K~20Khz scope harmonic waves Load on cooking ware bottom wall so that cooking ware vibrates, outside radiated noise.Wherein 100hz~500hz frequency ranges show as drone Boom, 5K~20Khz frequency ranges show as squeak.
The outside radiation current of actual coil disk such as Fig. 2 a, have forward current also while there is negative current;Here choose positive Electric current is analyzed, as shown in Figure 2 b.In Fig. 2 b current load to Electromagnetic Heating bottom wall current direction as shown in Figure 3 a, in a cycle Property closed circuit, because conductor Kelvin effect is present, above-mentioned IGBT has a constant switching frequency (i.e. coil panel working frequency) in addition, logical Cross skin depth calculation formula:, it can be deduced that electric current is largely presented in cooking ware bottom wall surface, and gradually inwards after subtracting, such as Shown in Fig. 3 b.
Conductor is moved or is in the magnetic field of change in magnetic field, can produce induced electromotive force, vortex is formed, because of this whirlpool The presence of stream so that when magnetic flux increase, magnetic field hinders conductor to advance, when magnetic flux reduces, and magnetic field hinders conductor to leave, such as Shown in Fig. 4.
It is reacted in actual electromagnetic heat protocol:Left side taper (correspondence IGBT switching frequencies are 20Khz) in such as Fig. 5, Repel each other in rising edge, it is attracting in trailing edge;Such as a taper in Fig. 5 in the curved line of the right, (corresponding to commercial power rectification fundamental wave is 100hz), repel each other in rising edge, attracting in trailing edge, similarly for 200hz, 300hz, 400hz, 500hz etc. harmonic wave is also deposited In same theory.Therefore it is this attracting, repel each other and just constitute the fundamental of cooking ware vibration, while this vibration is also sent Corresponding frequencies sound, produces electromagnetic noise.
The content of the invention
The technical problems to be solved by the invention are that there is provided a kind of small cooking pot of energy noise in view of the shortcomings of the prior art The electromagnetic heating apparatus of ware including cooking ware and the magnetic conductive board for cooking ware.
The technical scheme that the present invention solves above-mentioned technical problem is as follows:A kind of cooking ware, including bottom wall and side wall, it is described The outer surface of bottom wall and side wall one at least within is provided with slot segmentation, and the bottom wall and/or side wall be divided into by the slot segmentation Several magnetic inductive blocks, the single magnetic inductive block interior energy produces independent circular induced current during Electromagnetic Heating.
For achieving the above object, the present invention also provides a kind of electromagnetic heating apparatus, including described in above-mentioned technical proposal Cooking ware.The electromagnetic heating apparatus be electric pressure cooking saucepan, electric cooker, baking machine, bread producing machine, the slaughterhouse for electromagnetic oven or Frying pan for electromagnetic oven.
For achieving the above object, present invention also offers a kind of magnetic conductive board, for cooking ware, the magnetic conductive board tool Have installed in cooking ware bottom wall and the side wall upper surface of at least one, the lower surface of the magnetic conductive board is provided with slot segmentation, described The magnetic conductive board is divided into several magnetic inductive blocks by slot segmentation so that can be produced in the single magnetic inductive block in Electromagnetic Heating solely Vertical circular induced current.
The beneficial effects of the invention are as follows:The bottom wall and/or side wall are divided into several magnetic inductive blocks by the present invention, according to becoming Skin effect, electric current can be mostly present in the surface of conductor, therefore when carrying out Electromagnetic Heating to cooking ware, electric current is most of Concentrate in magnetic inductive block, and independent ring current can be formed in single magnetic inductive block;According to long-range navigation magnetic force formula, coil panel The conductor volume that is functioned to the active force of cooking ware is related, and the present invention equivalent to by the bottom wall of cooking ware and/or Side wall is divided into magnetic inductive block one by one, and the conductor volume that coil panel is acted on is reduced on the whole, is subtracted on the whole accordingly Long-range navigation magnetic force of the coil panel to cooking ware is lacked.Further according to kindred effect, the induced-current side produced in adjacent magnetic inductive block To on the contrary, both namely adjacent magnetic inductive blocks are attracting, by this neighbouring attracting effect, cooking ware bottom wall electric current can be offset The overall externally active force of circulation, is reduced to respective independent magnetic inductive block active force to external world, with further by overall externally active force Effectively reduce the overall vibration of cooking ware bottom wall.Therefore technical scheme is used, coil panel pair can be greatly reduced The long-range navigation magnetic force of cooking ware, can reduce the amplitude of cooking ware, and then reduce cooking ware in Electromagnetic Heating when institute accordingly The noise sent.
Brief description of the drawings
Fig. 1 is Electromagnetic Heating solution principle figure;
Fig. 2 a are the outside radiation current schematic diagram of coil panel;
Fig. 2 b are selection forward current schematic diagram of the coil panel to external radiation;
Fig. 3 a-3b are the bottom wall sense of current schematic diagram of prior art cooking ware;
Fig. 4 is conductor stress diagram in magnetic field;
Fig. 5 is conductor stress diagram in actual electromagnetic heat protocol;
Fig. 6 is kindred effect schematic diagram;
Fig. 7 a-7b are the bottom wall sense of current schematic diagram of cooking ware of the present invention;
Current direction schematic diagram in the two neighboring magnetic inductive block that Fig. 8 chooses for the present invention;
Fig. 9 a-9b are first kind embodiment schematic diagram of the present invention;
Figure 10 a-10c are Equations of The Second Kind embodiment schematic diagram of the present invention;
Figure 11 a-11b are the 3rd class embodiment schematic diagram of the invention;
Figure 12 a-12c are the 4th class embodiment schematic diagram of the invention;
Figure 13 is the 5th class embodiment schematic diagram of the invention;
Figure 14 is the bottom wall of prior art cooking ware and the bottom wall noise line comparison diagram of cooking ware of the present invention.
In accompanying drawing, the list of parts representated by each label is as follows:
1st, the ring current of magnetic inductive block, 2, the integral ring-shaped electric current of cooking ware bottom wall, 3, slot segmentation.
Embodiment
The principle and feature of the present invention are described below in conjunction with accompanying drawing, the given examples are served only to explain the present invention, and It is non-to be used to limit the scope of the present invention.
Embodiment 1
The present invention provides a kind of cooking ware, including bottom wall and side wall, the bottom wall and side wall one at least within it is outer Surface is provided with slot segmentation, and the bottom wall and/or side wall are divided into several magnetic inductive blocks by the slot segmentation, single during Electromagnetic Heating The magnetic inductive block interior energy produces independent circular induced current.
Only it can split to form magnetic inductive block in the bottom wall of cooking ware, can also be only in the side wall segmentation shape of cooking ware Into magnetic inductive block, it can also split to form magnetic inductive block in the bottom wall and side wall of cooking ware simultaneously, but in general in cooking ware Bottom wall it is in the majority.
Bottom wall and/or side wall are integrally made up of magnetic conductive material in the present embodiment.
According to Kelvin effect, electric current is merely present in the surface of conductor, and electromagnetic frequency is higher, and electric current is more concentrated on and led The surface of body.Therefore by bottom wall and side the wall at least within outer surface of one segmentation have multiple magnetic inductive blocks, the big portion of electric current Divide and flowed in magnetic inductive block, flowed only in gap of the fraction in magnetic inductive block.
The calculation formula of skin depth depth isElectromagnetic Heating working frequency f span is generally 15*103Hz~40*103Hz, the value of the magnetic permeability μ of magnetic inductive block is 4 π * 10-7, conductivityσ=1*10 of magnetic inductive block7S/m。
The present embodiment selects suitable slot segmentation depth bounds according to the calculation formula of skin depth so that magnetic conduction electric current is use up It may be flowed in magnetic inductive block.According to the above-mentioned parameter of magnetic inductive block, the depth bounds of slot segmentation is set to be set in the present invention 0.79mm~2.2mm.
In electrodynamics, Lorentz force (Lorentz force) is to move the power suffered by the charged particle in electromagnetic field. According to Lorentz force law, Lorentz force can use equation, referred to as Lorentz force equation, be expressed as:F=q (E+v × B), its In, F is Lorentz force, and q is the quantity of electric charge of charged particle, and E is electric-field intensity, and v is the speed of charged particle, and B is that magnetic induction is strong Degree.The integrated form of Lorentz force equation is:
F=∫ V (pE+J × B) dr,
Wherein, V is the volume of integration, and p is charge density, and J is current density, and dr is small element of volume.According to Lorentz The integrated form of power equation can be seen that in p, J, and in the case that dr keeps constant, Lorentz force F and volume V are proportional, That is volume V is bigger, and long-range navigation magnetic force F is bigger.The present invention sets the outer surface of cooking ware bottom wall and/or side wall one at least within There is slot segmentation, the bottom wall and/or side wall are divided into several magnetic inductive blocks by the slot segmentation.It is only right with prior art coil panel Bottom wall applies long-range navigation magnetic force and compareed, and the volume of conductor is the whole area of bottom wall and the product of skin depth in the prior art;This Embodiment sets magnetic inductive block by the bottom wall in cooking ware, because most electric current flows in magnetic inductive block, therefore conductor Volume for area and the skin depth of magnetic inductive block product.Because the gross area of all magnetic inductive blocks is less than the area of whole bottom wall, Therefore the volume of conductor is less than the volume of conductor in the prior art in the present embodiment, therefore the Lorentz force being subject to also subtracts relatively It is small, it is corresponding because the vibrating noise produced by long-range navigation magnetic force is also smaller.
The areal extent of magnetic inductive block is greater than or equal to 4.84mm2, less than or equal to 1/4 the bottom of a pan area (with the current the bottom of a pan Diameter 20cm is calculated, approximately less than 314cm2).If the area of magnetic inductive block is too small and adjacent magnetic inductive block between spacing it is also small Words, then the conductor volume that coil panel is acted on is still very big, it is impossible to effectively reduce the long-range navigation magnetic force suffered by cooking ware, Noise produced during cooking ware heating cannot effectively be reduced.If the too small and adjacent magnetic inductive block of the area of magnetic inductive block it Between spacing it is larger if, region that cooking ware bottom is effectively heated is not enough, it is necessary to which coil panel provides larger heating power.Such as The area of Tab phenolphthaleinum magnetic patch it is excessive, it is impossible to the effective volume for reducing conductor, the long-range navigation suffered by conductor can not be reduced accordingly Magnetic force, cannot also effectively reduce noise.The present invention can effectively eliminate the noise of low frequency part, and the low frequency, which refers to, to be less than 1KHz。
Further, since two wires of kindred effect, i.e. two-wire line respectively by alternating current in opposite direction when, The alternating magnetic field each produced mutually produces vortex on another adjacent wire.This electric current on adjacent wires is at this The vortex that wire is excited is superimposed with the original operating current of this wire, the actual current in conductor is distributed into section close to phase Concentrate the side (inner side) of adjacent wire.As shown in Figure 6.By the outer of cooking ware bottom wall and side wall one at least within the present invention Surface is provided with slot segmentation, and the bottom wall and/or side wall are divided into several magnetic inductive blocks by the slot segmentation, such as Fig. 7 a, 7b for pair The schematic diagram that cooking ware bottom wall is split:1st, the ring current of magnetic inductive block;2nd, the integral ring-shaped electric current of cooking ware bottom wall;3、 Slot segmentation.
As shown in figure 8, two neighboring magnetic inductive block, because of current direction on the contrary, can be analyzed from kindred effect, schemes upper two Both adjacent magnetic inductive blocks are attracting, by this neighbouring attracting effect, can offset the overall externally effect of cooking ware electric current circulation Power.Overall externally active force is also reduced to respective independent magnetic inductive block active force to external world simultaneously, so as to effectively reduce The overall vibration of cooking ware, reduces vibration, and the electromagnetic noise of generation reduces.
In the present embodiment, the width range of the slot segmentation is 0.79mm~2.2mm.The spacing of adjacent magnetic inductive block can not mistake It is small, such that being difficult to produce kindred effect between adjacent magnetic inductive block.The spacing of adjacent magnetic inductive block can not be excessive, excessive Words need coil panel to provide bigger specified heating power, can propose higher requirement to the parameter of coil panel.
The form of heretofore described slot segmentation can have many kinds, be exemplified below several representative.
As shown in Fig. 9 a-9b, the bottom wall is split by some from the slot segmentation extended centrally out of the bottom wall.
Such as Figure 10 a-10c, the bottom wall is split by some slot segmentations being parallel to each other, and the slot segmentation is one or one Group parallel straight line grooving or curve grooving.
As shown in Figure 11 a-11b and 12a-12c, the bottom wall is divided groove segmentation, and the slot segmentation includes some The first parallel grooving second grooving parallel with some, first grooving intersects with second grooving.
As shown in figure 13, the bottom wall is divided groove segmentation, and the slot segmentation includes several using bottom wall central as the center of circle Sub- grooving.
In addition, for the segmentation of cooking ware, can extend according to above example on the basis of bottom wall segmentation to side wall .Or remove bottom wall partitioning portion, only retain the part of side wall extension.In the present invention, the bottom wall of the cooking ware and/ Or side wall also has a variety of segmentation situations, will not enumerate herein.
Embodiment 2, bottom wall and/or side wall include substrate and are attached to leading for outer surface of substrate as different from Example 1 Magnetic sheet, cutting groove is arranged on the magnetic conductive board.
Embodiment 3, the present invention also provides a kind of electric pressure cooking saucepan, and the interior pot of the electric pressure cooking saucepan is above-described embodiment 1 or real Apply the cooking ware described in example 2.
Embodiment 4, the present invention also provides a kind of electric cooker, and the interior pot of the electric cooker is described in embodiment 1 or embodiment 2 Cooking ware.
Embodiment 5, the present invention also provides a kind of baking machine, and the baking tray of the baking machine is described in embodiment 1 or embodiment 2 Cooking ware.
Embodiment 6, the present invention also provides a kind of bread producing machine, and the bread barrel of the bread producing machine is embodiment 1 or the institute of embodiment 2 The cooking ware stated.
Embodiment 7, the present invention also provides a kind of slaughterhouse for electromagnetic oven, and it is used described in embodiment 1 or embodiment 2 Cooking ware.
Embodiment 8, the present invention also provides a kind of frying pan for electromagnetic oven, and it is used described in embodiment 1 or embodiment 2 Cooking ware.
Embodiment 9, present invention also offers a kind of magnetic conductive board, for the cooking ware disclosed by embodiment 2, magnetic conductive board tool Have installed in cooking ware bottom wall and the side wall upper surface of at least one, the lower surface of magnetic conductive board is provided with slot segmentation, and slot segmentation will The magnetic conductive board is divided into several magnetic inductive blocks so that can produce independent annular in the single magnetic inductive block in Electromagnetic Heating Induced-current.
The present invention does experiment to boil water to stainless steel slaughterhouse using 2000W power electromagnets stove, and the weight of the slaughterhouse is 400g, bottom Wall and side wall are made of 430 stainless steels, and the slaughterhouse is only provided with slot segmentation in bottom, and slot segmentation is from the center of bottom wall to extension Stretch (using the partitioning scheme shown in Fig. 9 a), segmentation groove depth is 0.8mm, segmentation well width is 0.8mm, and the area of segmentation block is 1/8 the bottom of a pan area, about 157cm2.Cooking ware bottom wall has non-division actual measurement noise dB such as Figure 14 (to use state every household in noise room Electric research institute's standard noise laboratory):
It can be seen that, in 100hz, 200hz, 300hz, 400hz, during 500hz, bottom wall has slot segmentation groove more non-division than bottom wall Situation noise reduce 3dB, 1dB, 2dB, 2dB, 1dB respectively.
In the description of this specification, reference term " embodiment one ", " example ", " specific example " or " some examples " Deng description mean to combine specific method, device or feature that the embodiment or example describe and be contained at least the one of the present invention In individual embodiment or example.In this manual, identical implementation is necessarily directed to the schematic representation of above-mentioned term Example or example.Moreover, specific features, method, device or the feature of description can be in any one or more embodiments or examples In combine in an appropriate manner.In addition, in the case of not conflicting, those skilled in the art can be by this specification The not be the same as Example of description or the feature of example and non-be the same as Example or example are combined and combined.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and Within principle, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.

Claims (13)

1. a kind of cooking ware, including bottom wall and side wall, it is characterised in that the appearance of the bottom wall and side wall one at least within Face is provided with slot segmentation, and the bottom wall and/or side wall are divided into several magnetic inductive blocks by the slot segmentation, single institute during Electromagnetic Heating State magnetic inductive block interior energy and produce independent circular induced current.
2. a kind of cooking ware according to claim 1, it is characterised in that the depth bounds of the slot segmentation is 0.79mm ~2.2mm.
3. a kind of cooking ware according to claim 1, it is characterised in that the width range of the slot segmentation is 0.79mm ~2.2mm.
4. a kind of cooking ware according to claim 1, it is characterised in that the areal extent of the magnetic inductive block be greater than or Equal to 4.84mm2, less than or equal to 1/4 the bottom of a pan area.
5. a kind of cooking ware according to claim 1, it is characterised in that the slot segmentation includes some from the bottom The grooving extended centrally out of wall.
6. a kind of cooking ware according to claim 1, it is characterised in that the slot segmentation is parallel to each other including some Grooving.
7. a kind of cooking ware according to claim 1, it is characterised in that the slot segmentation includes some articles parallel the One grooving, second grooving parallel with some, first grooving intersects with second grooving.
8. a kind of cooking ware according to claim 1, it is characterised in that the slot segmentation includes several with bottom wall The heart is the sub- grooving in the center of circle.
9. the cooking ware according to claim 1 to 8 any one, it is characterised in that the bottom wall and/or side wall are overall It is made up of magnetic conductive material.
10. the cooking ware according to claim 1 to 8 any one, it is characterised in that the bottom wall and/or side wall bag Include substrate and be attached to the magnetic conductive board of outer surface of substrate, the cutting groove is arranged on the magnetic conductive board.
11. a kind of electromagnetic heating apparatus, it is characterised in that including the cooking ware described in claim 1-10 any one.
12. the electromagnetic heating apparatus according to claim 11, it is characterised in that the electromagnetic heating apparatus be electric pressure cooking saucepan, Electric cooker, baking machine, bread producing machine, the slaughterhouse for electromagnetic oven or the frying pan for electromagnetic oven.
13. a kind of magnetic conductive board, for cooking ware, the magnetic conductive board have installed in cooking ware bottom wall and side wall at least one Upper surface, it is characterised in that the lower surface of the magnetic conductive board is provided with slot segmentation, and the magnetic conductive board is divided into by the slot segmentation Several magnetic inductive blocks so that independent circular induced current can be produced in the single magnetic inductive block in Electromagnetic Heating.
CN201610217233.6A 2016-04-08 2016-04-08 A kind of cooking ware, electromagnetic heating apparatus and magnetic conductive board Pending CN107259967A (en)

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN111743377A (en) * 2019-03-26 2020-10-09 佛山市顺德区美的电热电器制造有限公司 Induction heating container and heating appliance

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2652283Y (en) * 2003-09-19 2004-11-03 潘少平 Heating utensil for electromagnetic oven
CN103988576A (en) * 2011-07-14 2014-08-13 Tsi技术有限公司 Induction heating system employing induction-heated switched-circuit vessels
JP2015080632A (en) * 2013-10-23 2015-04-27 東洋製罐グループホールディングス株式会社 Induction heating element, and induction heating vessel
CN204427752U (en) * 2015-02-13 2015-07-01 佛山市顺德区美的电热电器制造有限公司 For pan and the electromagnetic heating cooking utensil of Electromagnetic Heating culinary art
CN204483874U (en) * 2015-02-13 2015-07-22 佛山市顺德区美的电热电器制造有限公司 For pan and the electromagnetic heating cooking utensil of Electromagnetic Heating culinary art
CN204445324U (en) * 2015-02-27 2015-07-08 佛山市顺德区美的电热电器制造有限公司 Pan and electromagnetic heating cooking utensil
CN204445448U (en) * 2015-02-27 2015-07-08 佛山市顺德区美的电热电器制造有限公司 Interior pot and electric cooker
CN205006604U (en) * 2015-07-10 2016-02-03 佛山市顺德区美的电热电器制造有限公司 Pan and electromagnetic heating system for electromagnetism stove

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111743377A (en) * 2019-03-26 2020-10-09 佛山市顺德区美的电热电器制造有限公司 Induction heating container and heating appliance

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Application publication date: 20171020