CN205666983U - Electromagnetism stove and coil panel - Google Patents

Electromagnetism stove and coil panel Download PDF

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Publication number
CN205666983U
CN205666983U CN201620523242.3U CN201620523242U CN205666983U CN 205666983 U CN205666983 U CN 205666983U CN 201620523242 U CN201620523242 U CN 201620523242U CN 205666983 U CN205666983 U CN 205666983U
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China
Prior art keywords
coil
kink
panel
electromagnetic oven
flat part
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CN201620523242.3U
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Chinese (zh)
Inventor
马强
黄理水
史庭飞
杨剑
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SEB SA
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SEB SA
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Abstract

The utility model provides an electromagnetism stove and coil panel, this electromagnetism stove lies in the drain pan including heating panel, coil panel and drain pan, coil panel, and the heating panel is dull and stereotyped, and the heating panel lies in the drain pan top, the coil panel includes coil plate rail (1) and coil (2), and coil (2) are around establishing on coil plate rail (1), coil (2) include the central straight portion (21) of coil panel of being close to, keep away from kink (22) that the central direction of coil panel is upwards buckled and is extended along straight portion (21) orientation, and the wire winding layer number of straight portion (21) equals that the wire winding layer number of kink (22) varies. On the basis that reduces peripheral region of coil and heating panel distance, according to the different zone of kink and the concrete wire winding layer number apart from definite kink different zone of heating panel to realize whole kink magnetic field intensity's equilibrium, make the magnetic field intensity of straight portion of coil and kink tend to equal, realized the homogeneity of electromagnetism stove heating.

Description

Electromagnetic oven and coil panel
Technical field
This utility model relates to household electrical appliance technical field, particularly relates to a kind of electromagnetic oven and coil panel.
Background technology
Electromagnetic oven have heating quickly, the flames of anger, the advantage such as safe ready, increasingly by the favor of consumer with recognize Can.Electromagnetic oven includes heating panel, coil panel and drain pan, and coil panel is positioned at drain pan, and heating panel is flat board, heating panel position In drain pan top.Wherein, coil panel mainly includes coil and coil plate rail, and coil is plane, and coil winding is at coil plate rail On.During electromagnetic oven work, utilize the electric current of high frequency to pass through coil, thus produce the magnetic field force of countless closing, the magnetic line of force in magnetic field Countless little eddy current can be produced by pan, so that the pan heating being placed on electromagnetic oven panel.
Owing to coil is plane, hot Temperature Distribution during electromagnetic oven work has the strongest and the weakest district along the radial direction of coil panel Territory point, wherein, enclose regional temperature in the coil panel center higher, away from coil panel center outer peripheral areas temperature relatively Low, cause pan to be heated uneven.In order to solve this problem, Chinese patent CN204482064U discloses a kind of electromagnetic oven, its The layer windings such as coil are on coil plate rail, and coil includes the flat part near coil panel center and the bending away from coil panel center Portion, thus reduce the distance between coil periphery region and heating panel, the region making heating weak is close to heating panel, thus Improve the uniformity of electromagnetic oven heating, make pan be heated evenly.
But due to the heating intensity of the electromagnetic oven distance dependent not only and between coil and heating panel, also produce with coil Magnetic field intensity relevant, and owing to heating panel is flat board, the limited angle of coil bent folding part bending, it is difficult to ensure kink magnetic The equilibrium of field intensity, causes electromagnetic oven heating to yet suffer from non-uniform phenomenon.
Utility model content
In order to solve at least one problem mentioned in background technology, this utility model provides a kind of electromagnetic oven and coil Dish, it is possible to realize the uniformity of electromagnetic oven heating.
To achieve these goals, this utility model provides a kind of electromagnetic oven, including heating panel, coil panel and drain pan, Described coil panel is positioned at described drain pan, and described heating panel is flat board, and described heating panel is positioned at described drain pan top;Described Coil panel includes coil plate rail and coil, and described coil is around being located on described coil plate rail;Described coil includes near coil panel The flat part at center, it is directed away from the kink that the direction at coil panel center is folded upward at extending along described flat part, described flat The coiling number of plies in straight portion is equal, the coiling number of plies of described kink.So by coil being set to flat part and bending Portion, on the basis of reducing coil periphery region and heating panel distance, is set to the coiling number of plies of kink, with basis The concrete distance of the zones of different of kink and heating panel determines the coiling number of plies of kink zones of different, thus realizes whole The equilibrium of kink magnetic field intensity, makes the magnetic field intensity of coil flat part and kink tend to equal, it is achieved that electromagnetic oven heating Uniformity, make pan be heated evenly.
Optionally, the coiling number of plies that the coiling number of plies of kink outer end is inner less than kink.Due to kink outer end from Heating panel is nearest, is arranged such and can equalize the magnetic field intensity that kink outer end is inner with kink further, makes whole bending The magnetic field intensity that portion produces is more uniform.
Optionally, the longitudinal section shape of described kink is arc.The coiling that so can make coil is more uniform, improves The aesthetic property of product.
Optionally, the outer end of described kink is 5mm~15mm with the difference in height of described flat part place plane.At this height In the range of degree, it is ensured that the magnetic line of force can cut to the bottom of pan effectively, it is ensured that the efficiency of heating surface of electromagnetic oven.
Optionally, there is ring-type isolation strip between described flat part and described kink.So by by flat part and curved The spaced setting in folding part, to avoid both junction magnetic lines of force the most intensive, prevents this region heat too high.
Optionally, the external diameter of described ring-type isolation strip is less than or equal to 120mm, and the internal diameter of described ring-type isolation strip is more than In 40mm.If this region exists coil, when coil produces alternating magnetic field, the dissection of the magnetic line of force is the most obvious, is produced pan Raw heat effect is the most maximum, in order to the heat preventing this region from producing is excessive, is protected in the region that flat part and kink disconnect Hold within the range, it is possible to the situation farthest avoiding the magnetic line of force uneven occurs.
Optionally, the mating shapes of magnetic stripe, the shape of described magnetic stripe and described coil it is provided with below described coil plate rail. By arranging magnetic stripe, to prevent the magnetic line of force from leaking so that the magnetic line of force that coil electricity produces concentrates on above coil, to improve electricity The efficiency of heating surface of magnetic stove.Meanwhile, the shape of magnetic stripe is mated with coil, can improve convenience and structure that whole coil panel is installed Compactedness, save space.
Optionally, described magnetic stripe is multiple, and multiple described magnetic stripes are with the center of described coil plate rail for the center of circle radially Arrangement, the distribution that so can make the magnetic line of force is more uniform, improves the uniformity of heating further.
Optionally, the center of described coil plate rail is provided with the opening cannelure towards described heating panel, described flat part It is positioned at described ring slot outside, in described cannelure, is provided with magnet ring.So can further improve the efficiency of heating surface and heating uniformity, And make the space within electromagnetic oven be effectively used, meanwhile, when installing coil, the lateral wall of cannelure can be straight to coil The inner side in portion carries out spacing, so that the installation of coil is more quickly with accurate.
On the other hand, this utility model provides a kind of coil panel, and including coil plate rail and coil, described coil is around being located at State on coil plate rail;Described coil includes the flat part near coil panel center, is directed away from coil panel along described flat part The direction of the heart is folded upward at the kink extended, and the coiling number of plies of described flat part is equal, and the coiling number of plies of described kink is not Deng.So by coil being set to flat part and kink, on the basis reducing coil periphery region and heating panel distance On, the coiling number of plies of kink is set to, determines with the concrete distance of the zones of different according to kink with heating panel The coiling number of plies of kink zones of different, thus realize the equilibrium of whole kink magnetic field intensity, make coil flat part and bending The magnetic field intensity in portion tends to equal, it is achieved that the uniformity of electromagnetic oven heating, makes pan be heated evenly.
Structure of the present utility model and its other purposes and beneficial effect will by combine accompanying drawing and to the most real Execute the description of example and become apparent from understandable.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, the accompanying drawing in describing below is Embodiments more of the present utility model, for those of ordinary skill in the art, in the premise not paying creative work Under, it is also possible to other accompanying drawing is obtained according to these accompanying drawings.
The structure sectional view of the electromagnetic oven coil dish that Fig. 1 provides for this utility model one embodiment;
The plan structure figure of the electromagnetic oven coil dish that Fig. 2 provides for this utility model one embodiment.
Description of reference numerals:
1 coil plate rail;2 coils;21 flat parts;22 kinks;221 kink outer ends;222 kinks Inner;23 ring-type isolation strip;31 magnetic stripes;32 magnet rings;11 installation portions;12 screens;13 cannelures;14 annulars Block reinforcement.
Detailed description of the invention
Embodiment one
The structure sectional view of the electromagnetic oven coil dish that Fig. 1 provides for this utility model one embodiment.Fig. 2 is that this practicality is new The plan structure figure of the electromagnetic oven coil dish that type one embodiment provides, referring to the drawings shown in 1 and accompanying drawing 2, the present embodiment provides A kind of electromagnetic oven, including heating panel, coil panel and drain pan.Coil panel is positioned at drain pan, and heating panel is flat board, heating panel It is positioned at drain pan top.Wherein, coil panel includes coil plate rail 1 and coil 2, and coil 2 winding is on coil plate rail 1.Implement Time, installation portion 11 can be set in the outer of coil plate rail 1, coil panel is fixed in drain pan by installation portion 11.Utilize electromagnetic oven When heating flat pan, being placed on heating panel by flat pan, coil electricity produces the magnetic field force of countless closings, The magnetic force line cutting pan in magnetic field produces countless little eddy current, so that the heating of flat pan.
Coil 2 in the present embodiment includes the flat part 21 near coil panel center, is directed away from coil along flat part 21 The direction of disk center is folded upward at the kink 22 extended.Wherein, the coiling number of plies of flat part 21 is equal, the coiling of kink 22 The number of plies.Formed on coil plate rail 1 it is to be understood that coil 2 is enclosed winding by enamel-covered wire one, in kink 22 The coiling number of plies of different circles is unequal.Specifically can different and true according to the zones of different in kink 22 and heating panel distance Determine the number of plies of coiling.
The electromagnetic oven that the present embodiment provides, so by coil 2 is set to flat part 21 and kink 22, is reducing line On the basis of circle outer peripheral areas and heating panel distance, the coiling number of plies of kink 22 is set to, with according to kink The concrete distance of zones of different and heating panel determines the coiling number of plies of kink zones of different, thus realizes whole kink magnetic The equilibrium of field intensity, makes the magnetic field intensity of coil flat part and kink tend to equal, it is achieved that the uniformity of electromagnetic oven heating, Pan is made to be heated evenly.
In the present embodiment, the coiling number of plies of kink outer end 221 is less than the coiling number of plies of kink the inner 222.Due to Kink outer end 221 is nearest from heating panel, is arranged such and can equalize kink outer end 221 and kink the inner 222 further Magnetic field intensity, the heating making whole kink is more uniform.It should be noted that kink outer end 221 refers to kink The side of the close coil panel outer edge of 22, kink the inner 222 refers to the side of the close flat part 21 of kink 22.
When implementing, the longitudinal section shape of kink 22 can be set to arc, i.e. the kink of coil 2 be with Arching trajectory upwardly extends, and the coiling making coil 2 is more uniform, improves the aesthetic property of product.Certainly, in other embodiments, Kink 22 can also upwardly extend with straight path.More preferred, the outer end of kink 22 and flat part 21 place plane Difference in height 5mm~15mm.In this altitude range, it is ensured that the magnetic line of force can cut to the bottom of pan effectively, it is ensured that The efficiency of heating surface of electromagnetic oven.
Further, in the present embodiment, there is ring-type isolation strip 23, namely between flat part 21 and kink 22 Say, between flat part 21 and kink 22, there is certain interval.The external diameter of this ring-type isolation strip 23 is less than or equal to 120mm, and ring The internal diameter of shape isolation strip is more than or equal to 40mm.If owing to this region exists coil, when coil produces alternating magnetic field, cutting of the magnetic line of force The effect of cutting is the most obvious, the most maximum to heat effect produced by pan, in order to the heat preventing this region from producing is excessive, by straight Portion 21 and kink 22 interval are arranged, thus the situation avoiding the magnetic line of force uneven occurs, to improve heating uniformity further.
Also temperature sensor can be set in ring-type isolation strip 23, be monitored electromagnetic oven heating face by temperature sensor in real time The operating temperature of plate, it is ensured that the equilibrium of electromagnetic oven heating temperature, and it is effectively utilized space.
Coil plate rail 1 could be arranged to plane, it is also possible to the mating shapes of coil 2.In the present embodiment, coil Plate rail 1 specifically includes horizontal part and curved portions, and arc part is outside horizontal part, and horizontal part and curved portions are integral type structure. During assembling, the flat part 21 of coil is around being located on horizontal part, and the kink 22 of coil is around being located in curved portions.By by coil panel The shape of frame 1 is corresponding with the form fit of coil 2, thus facilitates the installation of coil 2, and improves the tight of whole coil disk structure Gathering property, saves space.
Multiple annular block reinforcement 14 being arranged concentrically, adjacent annular block reinforcement can also be set at the upper surface of coil plate rail 1 The wire casing for installing coil 2 is formed between 14.Wherein, outermost annular block reinforcement 14 and coil on the horizontal part of coil plate rail In the curved portions of plate rail, the space between the annular block reinforcement 14 of inner side is formed as above-mentioned ring-type isolation strip 23.During assembling, by line Enclose around being located in the wire casing that annular block reinforcement 14 is formed, easy to assembly and can effectively flat part 21 and kink 22 be carried out Isolation.It is outside that each lead end of flat part 21 and kink 22 all extend out to coil plate rail 1, with the power supply in electromagnetic oven bottom shell Plate connects, so that coil electrically connects with power panel, can produce the magnetic line of force after coil electricity, magnetic force line cutting pan, thus Make the pan heating being placed on electromagnetic oven.Also screens 12 can be set in the outer of coil plate rail 1, by screens 12 to flat part 21 or each lead end of kink 22 carry out spacing so that the trend of the lead end of flat part 21 and kink 22 is more neat, Make each lead end more reliable and more stable with the connection of power panel.
On the basis of above-described embodiment, the lower section of coil plate rail 1 is provided with magnetic stripe 31.The shape of magnetic stripe 31 and coil 2 Mating shapes.By arranging magnetic stripe 31, thus prevent the magnetic line of force from leaking so that the magnetic line of force that coil 2 energising produces concentrates on Above coil 2, to improve the efficiency of heating surface of electromagnetic oven.Meanwhile, the shape of magnetic stripe 31 is mated with coil 2, can improve whole coil The convenience of dish installation and the compactedness of structure, save space.Specifically, magnetic stripe 31 can be multiple, multiple magnetic stripes 31 with The center of coil plate rail 1 is that the center of circle is arranged in below coil plate rail 1 radially, and the distribution that so can make the magnetic line of force is more equal Even, improve the uniformity of electromagnetic oven heating further.Can be by arranging groove at the lower surface of coil plate rail 1, by solid for magnetic stripe 31 It is scheduled in this groove.Groove can be multiple, and with multiple magnetic stripe 31 one_to_one corresponding.That is, each magnetic stripe 31 correspondence one is recessed Groove.The concrete shape of groove can be changed with the concrete shape of magnetic stripe 31.
Further, the center of coil plate rail 1 is additionally provided with cannelure 13, and flat part 21 is positioned at the outside of cannelure 13, Magnet ring 32 is installed in cannelure 13, by arranging the magnet ring 32 efficiency of heating surface with raising corresponding region, coil panel center, enters one Step improves the heating uniformity of electromagnetic oven.And it is arranged so that the space within electromagnetic oven is effectively used.Meanwhile, exist When installing coil 2, flat part the inner of coil 2 can be carried out spacing by the lateral wall of cannelure 13, so that the installation of coil 2 is more Quickly with accurate.
Embodiment two
On the basis of above-described embodiment, this utility model also provides for a kind of coil panel.This coil panel includes coil plate rail 1 With coil 2, coil 2 winding is on coil plate rail 1.Coil 2 includes the flat part 21 near coil panel center, along flat part 21 court The kink 22 extended it is folded upward to the direction away from coil panel center.Wherein, the coiling number of plies of flat part 21 is equal, bending The coiling number of plies in portion 22.
Other technologies feature is identical with embodiment one, and can reach identical technique effect, and this is no longer going to repeat them.
The coil panel that the present embodiment provides, so by coil 2 is set to flat part 21 and kink 22, is reducing line On the basis of circle outer peripheral areas and heating panel distance, the coiling number of plies of kink 22 is set to, with according to kink The concrete distance of zones of different and heating panel determines the coiling number of plies of kink zones of different, thus realizes whole kink magnetic The equilibrium of field intensity, makes the magnetic field intensity of coil flat part and kink tend to equal, it is achieved that the uniformity of electromagnetic oven heating, Pan is made to be heated evenly.
Last it is noted that various embodiments above is only in order to illustrate the technical solution of the utility model, rather than it is limited System;Although being described in detail this utility model with reference to foregoing embodiments, those of ordinary skill in the art should Understand: the technical scheme described in foregoing embodiments still can be modified by it, or to the most some or all of Technical characteristic carries out equivalent;And these amendments or replacement, do not make the essence of appropriate technical solution depart from this practicality new The scope of type each embodiment technical scheme.

Claims (10)

1. an electromagnetic oven, including heating panel, coil panel and drain pan, described coil panel is positioned at described drain pan, described heating Panel is flat board, and described heating panel is positioned at described drain pan top;Described coil panel includes coil plate rail (1) and coil (2), institute State coil (2) around being located on described coil plate rail (1);Described coil (2) includes near the flat part (21) at coil panel center, edge Described flat part (21) is directed away from the kink (22) that the direction at coil panel center is folded upward at extending, described flat part (21) The coiling number of plies equal, it is characterised in that the coiling number of plies of described kink (22).
Electromagnetic oven the most according to claim 1, it is characterised in that the coiling number of plies of described kink outer end (221) is less than The coiling number of plies of described kink inner (222).
Electromagnetic oven the most according to claim 1 and 2, it is characterised in that the longitudinal section shape of described kink (22) is Arc.
Electromagnetic oven the most according to claim 1 and 2, it is characterised in that the outer end of described kink (22) is straight with described The difference in height of portion (21) place plane is 5mm~15mm.
Electromagnetic oven the most according to claim 1 and 2, it is characterised in that described flat part (21) and described kink (22) Between there is ring-type isolation strip (23).
Electromagnetic oven the most according to claim 5, it is characterised in that the external diameter of described ring-type isolation strip (23) is less than or equal to 120mm, and the internal diameter of described ring-type isolation strip (23) is more than or equal to 40mm.
Electromagnetic oven the most according to claim 1 and 2, it is characterised in that described coil plate rail (1) lower section is provided with magnetic stripe (31), the shape of described magnetic stripe (31) and the mating shapes of described coil (2).
Electromagnetic oven the most according to claim 7, it is characterised in that described magnetic stripe (31) is multiple, multiple described magnetic stripes (31) it is to arrange radially in the center of circle with the center of described coil plate rail (1).
Electromagnetic oven the most according to claim 7, it is characterised in that the center of described coil plate rail (1) be provided with opening towards The cannelure (13) of described heating panel, described flat part (21) is positioned at described cannelure (13) outside, described cannelure (13) Inside it is provided with magnet ring (32).
10. a coil panel, including coil plate rail (1) and coil (2), described coil (2) is around being located at described coil plate rail (1) On;Described coil (2) includes the flat part (21) near coil panel center, is directed away from coil panel along described flat part (21) The direction of the heart is folded upward at the kink (22) extended, and the coiling number of plies of described flat part (21) is equal, it is characterised in that described The coiling number of plies of kink (22).
CN201620523242.3U 2016-06-01 2016-06-01 Electromagnetism stove and coil panel Active CN205666983U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620523242.3U CN205666983U (en) 2016-06-01 2016-06-01 Electromagnetism stove and coil panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620523242.3U CN205666983U (en) 2016-06-01 2016-06-01 Electromagnetism stove and coil panel

Publications (1)

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CN205666983U true CN205666983U (en) 2016-10-26

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020140990A1 (en) * 2019-01-03 2020-07-09 佛山市顺德区美的电热电器制造有限公司 Coil disk and cooking appliance

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020140990A1 (en) * 2019-01-03 2020-07-09 佛山市顺德区美的电热电器制造有限公司 Coil disk and cooking appliance

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