CN100387100C - Method for reducing electromagnetic interference of electromagnetic oven and anti-leakage electromagnetic over coiler - Google Patents

Method for reducing electromagnetic interference of electromagnetic oven and anti-leakage electromagnetic over coiler Download PDF

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Publication number
CN100387100C
CN100387100C CNB2006100432405A CN200610043240A CN100387100C CN 100387100 C CN100387100 C CN 100387100C CN B2006100432405 A CNB2006100432405 A CN B2006100432405A CN 200610043240 A CN200610043240 A CN 200610043240A CN 100387100 C CN100387100 C CN 100387100C
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China
Prior art keywords
coil
electromagnetic
magnetic stripe
magnetic
leakage
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CNB2006100432405A
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Chinese (zh)
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CN1863418A (en
Inventor
朱泽春
金延东
吴树德
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Joyoung Co Ltd
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Joyoung Co Ltd
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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

Abstract

The present invention discloses a method for reducing the electromagnetic interference of an electromagnetic oven and a leakage-proof wire coil of the electromagnetic oven, which belongs to the technical field of the design of electromagnetic ovens. A magnetism guiding passage is arranged on the outer edge of the wire coil of the electromagnetic oven, the magnetism guiding passage and a strip-shaped magnetic strip are integrated, and magnetic fields dispersed on the outer edge of a coil are intensively guided to the bottom of a boiler, so that the leakage of electromagnetism is reduced. The leakage-proof wire coil is composed of magnetic stripes and a coil fixed on a supporting frame, wherein the magnetic stripes are radially distributed in the supporting frame and covered by the coil. The present invention is characterized in that one end of the magnetic stripes, which is adjacent to the outer edge of the coil, is provided with magnetic stripe corners for enveloping the coil. The present invention has the advantages that the leakage of the magnetic fields is reduced greatly, the influence of the electromagnetic oven on ambient environment during operation is reduced, and the heating efficiency is increased.

Description

Anti-leakage electromagnetic over coiler
Affiliated technical field
The invention discloses a kind of anti-leakage electromagnetic over coiler, belong to the electromagnetic oven design field.
Background technology
Electromagnetic oven is the electroheat equipment that the eddy current that utilizes electromagnetic induction principle to produce heats pan.Its heater is an electromagnetic oven wire coil, is made of coil, support, magnetic stripe.Existing electromagnetic oven wire coil magnetic stripe is a strip, and radially distributing is embedded in the support, and coil places above the support.The electromagnetic oven wire coil of this structure part magnetic line of force in the course of the work can depart from pan, to the electromagnetic oven external leakage, external environment condition on every side and electrical equipment is produced serious electromagnetic interference, can also influence the efficiency of heating surface.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, a kind of anti-leakage electromagnetic over coiler is provided.
Experiment shows, cause the main cause of existing electromagnetic oven electromagnetic interference, be that traditional magnetic stripe that radially distributes in support can not be effectively gathers the bottom of a pan to greatest extent with the magnetic field of coil outer, constitute effectively heating magnetic field, form radiated interference and be dispersed in the coil outer.Therefore, increase the magnetism guiding access of drum outer, the magnetic resistance that reduces the coil outer is the effective ways that reduce the electromagnetic oven electromagnetic interference.
At above-mentioned reason, the method for the minimizing electromagnetic oven electromagnetic interference that the present invention discloses is: the outer at electromagnetic oven wire coil is provided with the magnetic conduction passage that constitutes one with the strip magnetic stripe, with being dispersed in the magnetic field concentration guiding pot bottom of coil outer, to reduce electromagnetic leakage.
Specifically, be exactly the permeability magnetic material that constitutes one with the strip magnetic stripe to be set in the outer of electromagnetic oven wire coil, formation from magnetic stripe to the drum outer, comprise the outer closed magnetism guiding access vertically of drum, reduce traditional electromagnetic oven wire coil and comprise outside the drum magnetic resistance at position vertically from magnetic stripe to drum outer, with being dispersed in the magnetic field concentration guiding pot bottom of coil outer, reduce the electromagnetic radiation of electromagnetic oven, reach the purpose that reduces the electromagnetic oven electromagnetic interference.
In view of the above, the anti-leakage electromagnetic over coiler that the present invention relates to, by the magnetic stripe that radially distributes in support, the coil that the covering magnetic stripe is fixed on the support constitutes, and it is characterized in that described magnetic stripe has the magnetic stripe turning of envelope coil near coil outer one end.
Specifically can adopt an end to have the magnetic stripe at envelope turning, the flux circuit of increase coil outer reduces magnetic resistance, and the magnetic line of force of shielding electromagnetic oven wire coil outer leaks.
Can also adopt the annular magnetic guiding loop that matches and be connected with magnetic stripe, place the coil periphery to form the magnetic conduction passage.
Magnetic stripe and magnetic stripe turning can be integrative-structures, also can adopt at least two blocks of permeability magnetic materials to combine.
Magnetic stripe turning and magnetic stripe meet at right angles, and also can in the arc-shapedly connect, and be whole L-shaped.
Magnetic stripe turning end face flushes with coil plane up.
In case of necessity, the ceramic panel that magnetic stripe turning end face sees through electromagnetic oven flushes with plane, the bottom of a pan, and its effect is better.The shape of magnetic stripe adopts narrow segment, can reduce material consumption, increases and the contact-making surface that places coil peripheral annular magnetic guiding loop.The shape that the magnetic stripe that also can adopt strip is connected with the nature transition of circular-arc turning.
During electromagnetic oven heating work, because drum magnetic stripe end has the turning, the leakage field that coil is produced is most of to form the loop by magnetic stripe corner, make magnetic field concentration be distributed in the pan bottom, reduced leaking of magnetic field widely, to the influence of surrounding environment, and can improve the efficiency of heating surface when having reduced electromagnetic oven work.Contrast by experiment (with the drum of common operating mode relatively), be 5CM place in distance electromagnetic stove ceramic panel edges 10CM, test height, record the leakage field value and on average reduce by 30%, Q value is improve 15% on average.
Description of drawings
Be described further below in conjunction with accompanying drawing:
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a magnetic stripe stereogram of the present invention.
Fig. 3 is the longitudinal sectional view of Fig. 2.
Fig. 4 is the schematic diagram of arc turning and magnetic stripe body fabricated structure.
Wherein: 1, magnetic stripe; 2, coil; 3, support; 4, magnetic stripe turning.
Embodiment
Embodiment 1:
A kind of anti-leakage electromagnetic over coiler, by the magnetic stripe 1 that radially distributes in support 3, the coil 2 that covering magnetic stripe 1 is fixed on the support 3 constitutes, and it is characterized in that described magnetic stripe 1 has the magnetic stripe turning 4 of envelope coil near coil 2 outers one end.
As Fig. 1, shown in Figure 4, comprise support 3, coil 2, magnetic stripe 1, eight magnetic stripes 1 radially distribute in support 3, coil 2 covers magnetic stripe 1 and is fixed on the support 3, the T shape is formed at magnetic stripe 1 and turning 4, turning 4 end faces are towards ceramic panel direction and vertical with coil 2 planes, turning height and coil upper surface flush.
Embodiment 2:
Shown in Fig. 2,3, magnetic stripe turning and magnetic stripe meet at right angles, and whole L-shaped, turning 4 end faces are towards ceramic panel direction and vertical with coil 2 planes, turning height and coil upper surface flush.

Claims (3)

1. anti-leakage electromagnetic over coiler, by the magnetic stripe (1) that radially distributes in support (3), the coil (2) that covering magnetic stripe (1) is fixed on the support (3) constitutes, it is characterized in that described magnetic stripe (1) has the magnetic stripe turning (4) of envelope coil near coil (2) outer one end, it is characterized in that the T shape is formed in magnetic stripe (1) and magnetic stripe turning (4).
2. anti-leakage electromagnetic over coiler according to claim 1 is characterized in that, magnetic stripe turning (4) end face is towards ceramic panel direction and vertical with coil (2) plane, the height of magnetic stripe turning (4) and coil (2) upper surface flush.
3. anti-leakage electromagnetic over coiler according to claim 2 is characterized in that, magnetic stripe turning (4) are the whole magnetic guiding loop that forms an interruption on coil (2) plane, outer.
CNB2006100432405A 2006-03-21 2006-03-21 Method for reducing electromagnetic interference of electromagnetic oven and anti-leakage electromagnetic over coiler Active CN100387100C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2006100432405A CN100387100C (en) 2006-03-21 2006-03-21 Method for reducing electromagnetic interference of electromagnetic oven and anti-leakage electromagnetic over coiler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2006100432405A CN100387100C (en) 2006-03-21 2006-03-21 Method for reducing electromagnetic interference of electromagnetic oven and anti-leakage electromagnetic over coiler

Publications (2)

Publication Number Publication Date
CN1863418A CN1863418A (en) 2006-11-15
CN100387100C true CN100387100C (en) 2008-05-07

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100403853C (en) * 2007-04-30 2008-07-16 九阳股份有限公司 Electromagnetic heating device and electromagnetic stove, soya-bean milk machine and electric pot
WO2017193531A1 (en) * 2016-05-13 2017-11-16 佛山市顺德区美的电热电器制造有限公司 Cooking utensil

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003151745A (en) * 2001-11-09 2003-05-23 Matsushita Electric Ind Co Ltd Induction heating cooker
CN2702572Y (en) * 2004-05-10 2005-05-25 广东美的集团股份有限公司 An electromagnetic oven coil panel

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003151745A (en) * 2001-11-09 2003-05-23 Matsushita Electric Ind Co Ltd Induction heating cooker
CN2702572Y (en) * 2004-05-10 2005-05-25 广东美的集团股份有限公司 An electromagnetic oven coil panel

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