CN103415099B - Electromagnetic induction heater - Google Patents
Electromagnetic induction heater Download PDFInfo
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- CN103415099B CN103415099B CN201310242415.5A CN201310242415A CN103415099B CN 103415099 B CN103415099 B CN 103415099B CN 201310242415 A CN201310242415 A CN 201310242415A CN 103415099 B CN103415099 B CN 103415099B
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- electromagnetic induction
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Abstract
The present invention relates to electromagnetic induction heater.The present invention solves prior art existence and has had a strong impact on the practicality of electromagnetic oven, flexibility, the even problem of fail safe, its drip irrigation device is: for carrying out Electromagnetic Heating to container, comprise some shielding magnetic stripes, connecting base plate, closed cumulative magnetic core and electromagnetic induction coil, all shielding magnetic stripe length is equal, the upper surface of all shielding magnetic stripes is all parallel with the lower surface of electromagnetic induction coil, the first end of all shielding magnetic stripes is all connected with connecting base plate, the center of connecting base plate upper surface is fixedly connected with the bottom of closed cumulative magnetic core, second end of shielding magnetic stripe is the free end extended to electromagnetic induction coil radial direction, angle between arbitrary neighborhood shielding magnetic stripe is equal, electromagnetic induction coil coils the top being located at connecting base plate and shielding magnetic stripe centered by closed cumulative magnetic core.The present invention can be fully balanced Distribution of Magnetic Field, controlling magnetic field magnetic effectively, reaches the object of single coil non-blind area homogeneous heating.
Description
Technical field
The present invention is a kind of heater, particularly relates to a kind of electromagnetic induction heater.
Background technology
At present, the planar heating device of all electromagnetic induction heating products especially non-tubular structure, induction coil is wound on same plane, a upper circle is by the following coiling of a secondary circle envelope, due to induction coil winding method and cause being coupled between it unbalanced with the reasons in structure of heating appliances (pan), Distribution of Magnetic Field is uneven, thus utensil (pan) is caused to heat uneven, be mainly manifested in the region having about 50mm in the middle part of the bottom of a pan not heat---" blind area " (see accompanying drawing 4), have a strong impact on the practicality of electromagnetic oven stove, flexibility, even fail safe, although also have Some Enterprises and product to have made some improvements, but produce little effect, all fundamentally do not solve and go wrong.
China Patent Publication No.: CN201387050Y, publication date on January 20th, 2010, disclose a kind of Combined type heating wire coil of electromagnetic oven, comprise support, embed the magnetic stripe of internal stent, coil the coil on support, and the sleeve pipe to be connected with end winding and binding post, above-mentioned support is dish type, radiation buttress is had between support inner ring and support outer ring, the magnetic stripe embedding internal stent also radially distributes, support inner ring with support outer ring is distributed with the corresponding draw-in groove in position, fixed by 4 ~ 10 band lock catch battens and support above coil, in the inner ring draw-in groove that support is inserted at two of belt lock catch press strip respectively and outer ring draw-in groove, above-mentioned internal stent is fixed with inner ring magnetic-leakage preventing magnetic core at support inner ring place, is fixed with outer shroud magnetic-leakage preventing magnetic core at support outer ring place.The present invention not only has combination function and inside and outside magnetic-leakage preventing function, also greatly can improve the heat-sinking capability of coil self, safe and environmentally friendly, improves the heat efficiency, can also save material simultaneously, reduces energy consumption.But this technical scheme still exists the region having about 50mm in the middle part of the bottom of a pan not to be heated---" blind area ", has had a strong impact on the problem of the practicality of electromagnetic oven stove, flexibility, even fail safe.
Summary of the invention
The object of the invention is to have had a strong impact on the practicality of electromagnetic oven stove, the problem of flexibility, even fail safe for solving current technical scheme existence, a kind of fully equilibrium Distribution of Magnetic Field is provided, reaches the electromagnetic induction heater of single coil non-blind area homogeneous heating.
The technical solution adopted for the present invention to solve the technical problems is: a kind of electromagnetic induction heater, for carrying out Electromagnetic Heating to container, comprise some shielding magnetic stripes, connecting base plate, closed cumulative magnetic core and electromagnetic induction coil, all shielding magnetic stripe length is equal, the upper surface of all shielding magnetic stripes is all parallel with the lower surface of described electromagnetic induction coil, the first end of all shielding magnetic stripes is all connected with described connecting base plate, the center of described connecting base plate upper surface is fixedly connected with the bottom of closed cumulative magnetic core, second end of described shielding magnetic stripe is the free end extended to electromagnetic induction coil radial direction, angle between described arbitrary neighborhood shielding magnetic stripe is equal, described electromagnetic induction coil coils the top being located at connecting base plate and shielding magnetic stripe centered by closed cumulative magnetic core.Such setting, due to the effect of closed cumulative magnetic core, there has been change the position of the magnetic line of force, blind zone position of the prior art, for the close quarters that the magnetic line of force is closed, by the bottom centre position of a large amount of magnetic line of force through container, fully balanced Distribution of Magnetic Field, change the problem that the blind area efficiency of heating surface is low, reach the object of single coil non-blind area homogeneous heating.The form of the mainly solid bar magnet of the closed cumulative magnetic core in the present invention, also can be other form of magnets playing closed cumulative, shielding magnetic stripe and the connected mode of connecting base plate are the form that is directly connected or connect with the form directly connected be indirectly connected mixing, second end of direct connection and all shielding magnetic stripes all and connecting base plate, direct connection is then directly be connected with connecting base plate with at least two main shielding magnetic stripes with being indirectly connected that the form mixed connects, all the other shielding magnetic stripes do with main shielding magnetic stripe and are connected, indirectly be connected with connecting base plate, connecting base plate material in the present invention is consistent with shielding magnetic strip material, for by integrated molding.
As preferably, described closed cumulative magnetic core entirety is in cylinder, described closed cumulative magnetic core is vertical with all shielding magnetic stripes, the middle part of described closed cumulative magnetic core offers through hole, the cross section of closed cumulative magnetic core is circular or regular polygon, and described through hole is the cylindricality through hole matched with closed cumulative core shapes.Such setting, the further refinement shape of the magnetic line of force, reach the fully equilibrium object of Distribution of Magnetic Field, in described through hole, transducer is set, the data monitoring of less electromagnetic interference can be reached like this, same, the closed cumulative magnetic core weight arranged so also can alleviate, and cost also can reduce further.
As preferably, described electromagnetic induction coil comprises interior electromagnetic induction coil and outer electromagnetic induction coil, described outer electromagnetic induction coil winding is in the outside of interior electromagnetic induction coil, described interior electromagnetic induction coil is double-layer overlapped coiling, described outer electromagnetic induction coil is individual layer row coiling, and the hub of a spool of described interior electromagnetic induction coil and the hub of a spool of outer electromagnetic induction coil are closed cumulative magnetic core.It is more balanced that the magnetic line of force can adjust by double-layer overlapped coiling further, as far as possible by the center of close container bottom intensive for the magnetic line of force.
As preferably, between described interior electromagnetic induction coil and outer electromagnetic induction coil, free coiling is set.
As preferably, the inner side and outer side of described interior electromagnetic induction coil is all pasted with temperature-resistant insulation layer, and the inner side and outer side of described outer electromagnetic induction coil is also all pasted with temperature-resistant insulation layer.Temperature-resistant insulation layer serves the effect of safeguard protection, helps electromagnetic induction heater to carry out high temperature resistant and insulation protection.
As preferably, in the middle part correspondence of described shielding magnetic stripe, electromagnetic induction coil outer fix place is provided with the inner ring projection vertical with shielding magnetic stripe, fit outside the interior electromagnetic induction coil that described inner ring is protruding and described, the outer electromagnetic induction coil outer fix place of free end correspondence of shielding magnetic stripe is provided with the outer lug vertical with shielding magnetic stripe, fit outside described outer lug and described outer electromagnetic induction coil, the inner side of the outer electromagnetic induction coil of described shielding magnetic stripe correspondence is provided with internal projection, fits in the inner side of described internal projection and described outer electromagnetic induction coil.The present invention is arranged like this, and internal projection and outer lug play effect Distribution of Magnetic Field being become inner and outer magnetic field respectively, can also play the effect of fixing interior electromagnetic induction coil and outer electromagnetic induction coil.
As preferably, the top of described closed cumulative magnetic core is provided with that several concentric circless are protruding or point-like is protruding, and the distance between all concentric circless is equal, and the distance between described arbitrary neighborhood point-like projection is equal.Be " ditch-beam " or " peak-paddy " type structure like this by the tip designs of closed cumulative magnetic core, closed cumulative magnetic core can more effectively controlling magnetic field magnetic, reaches ideal distribution.
As preferably, the described closed top of cumulative magnetic core abuts with the bottom of container.Such setting, further defines the magnetic line of force through density during container, and can try one's best the many central authorities magnetic line of force being concentrated on container bottom.
As preferably, the top of described closed cumulative magnetic core is 15 millimeters with the maximum spacing of the bottom of distance container.Such setting, if the distance of the top of closed cumulative magnetic core with the bottom of distance container widened, the magnetic line of force, by the so not intensive bottom through container, causes the efficiency of heating surface of container bottom again low, little with the difference of prior art.
As preferably, the top of described outer lug is provided with that several concentric circless are protruding or point-like is protruding, and the distance between all concentric circless is equal, and the distance between described arbitrary neighborhood point-like projection is equal.Such setting, is also designed to " ditch-beam " or " peak-paddy " type structure by the end face of shielding magnetic stripe, effectively can reaches ideal distribution by controlling magnetic field magnetic.
Substantial effect of the present invention is: fully balanced Distribution of Magnetic Field, controlling magnetic field magnetic reaches ideal distribution effectively, reaches the object of single coil non-blind area homogeneous heating.
Accompanying drawing explanation
Fig. 1 is a kind of overall structure schematic diagram of the present invention;
Fig. 2 is a kind of method for winding schematic diagram of the electromagnetic induction coil in the present invention;
Fig. 3 is a kind of structural representation shielding magnetic stripe and closed cumulative magnetic core in the present invention;
Fig. 4 is a kind of schematic diagram of background technology in the present invention.
In figure: 1, the magnetic line of force, 2, closed cumulative magnetic core, 3, concentric circles is protruding, 4, shielding magnetic stripe, 5, electromagnetic induction coil, 6, inner ring is protruding, 7, internal projection, 8, outer lug, 9, container, 10, connecting base plate, 11, the magnetic line of force in background technology, 12, heating appliances in background technology.
Embodiment
Below by specific embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment 1:
A kind of electromagnetic induction heater (see accompanying drawing 1 and Fig. 2), for carrying out Electromagnetic Heating to container 9, comprise four shielding magnetic stripes 4, a connecting base plate 10, a closed cumulative magnetic core 2 and electromagnetic induction coil 5, article four, shield that magnetic stripe length is equal and the upper surface of all shielding magnetic stripes is all parallel with the lower surface of described electromagnetic induction coil, the first end of all shielding magnetic stripes is all connected with described connecting base plate, angle between arbitrary neighborhood shielding magnetic stripe is equal is 90 degree, the center of connecting base plate upper surface is fixedly connected with the bottom of closed cumulative magnetic core, second end of described shielding magnetic stripe extends to electromagnetic induction coil radial direction, second end of shielding magnetic stripe is free end, described electromagnetic induction coil is centered by closed cumulative magnetic core, integral disc is located at the top of connecting base plate and shielding magnetic stripe.Closed cumulative magnetic core entirety is in cylindrical shape, closed cumulative magnetic core is vertical with all shielding magnetic stripes, the middle part of closed cumulative magnetic core offers through hole, and the cross section of closed cumulative magnetic core is circular, and described through hole is the cylindrical hole matched with closed cumulative core shapes.Electromagnetic induction coil comprises interior electromagnetic induction coil and outer electromagnetic induction coil, interior electromagnetic induction coil is established around closed cumulative magnetic core dish, outer electromagnetic induction coil winding is in the outside of interior electromagnetic induction coil, and described interior electromagnetic induction coil is double-layer overlapped coiling (see accompanying drawing 3).The dish of the interior electromagnetic induction coil of the present embodiment sets sequence as from inside to outside, get on, get off the order be arranged in order, described outer electromagnetic induction coil is individual layer row coiling, and the hub of a spool of described interior electromagnetic induction coil and the hub of a spool of outer electromagnetic induction coil are closed cumulative magnetic core.Between described interior electromagnetic induction coil and outer electromagnetic induction coil, free coiling is set.Inner side edge and the outer side edges of described interior electromagnetic induction coil are all pasted with temperature-resistant insulation layer, and inner side edge and the outer side edges of described outer electromagnetic induction coil are also all pasted with temperature-resistant insulation layer.In the middle part correspondence of described shielding magnetic stripe, electromagnetic induction coil outer fix place is provided with the inner ring projection 6 vertical with shielding magnetic stripe, fit in order to fixing interior electromagnetic induction coil outside the interior electromagnetic induction coil that described inner ring is protruding and described, the outer electromagnetic induction coil outer fix place of free end correspondence of shielding magnetic stripe is also provided with the outer lug 8 vertical with shielding magnetic stripe, fit outside described outer lug and described outer electromagnetic induction coil, the inner side place of the outer electromagnetic induction coil of described shielding magnetic stripe correspondence is provided with internal projection 7, fit in the inner side of described internal projection and described outer electromagnetic induction coil.Internal projection and the outer electromagnetic induction coil of outer lug clamping, play fixing effect, the top of described closed cumulative magnetic core is provided with several concentric circles projections 3, forms hook-girder construction, distance between all concentric circless is equal, and the described closed top of cumulative magnetic core abuts with the bottom of container.It is protruding that the top of described outer lug is also provided with several concentric circless, forms hook-girder construction, and distance between concentric circles is equal.
Embodiment 2:
Embodiment 2 is substantially the same manner as Example 1, and its difference is, be provided with space between the top of closed cumulative magnetic core and the bottom of distance container, described space is 15 millimeters to the maximum spacing on the top of closed cumulative magnetic core.The closed top of cumulative magnetic core and the top of outer lug are provided with the projection of several point-like, and the distance between described arbitrary neighborhood point-like projection is equal, and the closed top of cumulative magnetic core and the top of outer lug all form peak and valley structure.Closed cumulative magnetic core in the present embodiment is positive 8 limit shape columns, arranges transducer in through hole.
When above-mentioned two embodiments use, arrange transducer, can reach the data monitoring of less electromagnetic interference like this in described through hole, same, the closed cumulative magnetic core weight arranged so also can alleviate, and cost also can reduce further.The magnetic line of force 1 in two embodiments is all closed cumulative restriction that magnetic core collects, density when making the magnetic line of force pass container, and can try one's best the many central authorities magnetic line of force being concentrated on container bottom.And the version on the top of closed cumulative magnetic core also can reach ideal distribution by controlling magnetic field magnetic effectively.Interior electromagnetic induction coil is double-layer overlapped coiling, the dish of interior electromagnetic induction coil sets sequence as from inside to outside, and get on, get off the order be arranged in order, can be fully balanced Distribution of Magnetic Field.Thus reach the effect of single coil non-blind area homogeneous heating.
Above-described embodiment is one of the present invention preferably scheme, not does any pro forma restriction to the present invention, also has other variant and remodeling under the prerequisite not exceeding the technical scheme described in claim.
Claims (8)
1. an electromagnetic induction heater, for carrying out Electromagnetic Heating to container, it is characterized in that: comprise some shielding magnetic stripes, connecting base plate, closed cumulative magnetic core and electromagnetic induction coil, all shielding magnetic stripe length is equal, the upper surface of all shielding magnetic stripes is all parallel with the lower surface of described electromagnetic induction coil, the first end of all shielding magnetic stripes is all connected with described connecting base plate, the center of described connecting base plate upper surface is fixedly connected with the bottom of closed cumulative magnetic core, second end of described shielding magnetic stripe is the free end extended to electromagnetic induction coil radial direction, angle between the shielding magnetic stripe of arbitrary neighborhood is equal, described electromagnetic induction coil coils the top being located at connecting base plate and shielding magnetic stripe centered by closed cumulative magnetic core, the top of described closed cumulative magnetic core is provided with that several concentric circless are protruding or point-like is protruding, distance between all concentric circless is equal, distance between the described point-like projection of arbitrary neighborhood is equal, the top of described closed cumulative magnetic core is 15 millimeters with the maximum spacing of the bottom of distance container.
2. electromagnetic induction heater according to claim 1, it is characterized in that: described closed cumulative magnetic core entirety is in cylinder, described closed cumulative magnetic core is vertical with all shielding magnetic stripes, the middle part of described closed cumulative magnetic core offers through hole, the cross section of closed cumulative magnetic core is circular or regular polygon, and described through hole is the cylindricality through hole matched with closed cumulative core shapes.
3. electromagnetic induction heater according to claim 1, it is characterized in that: described electromagnetic induction coil comprises interior electromagnetic induction coil and outer electromagnetic induction coil, described outer electromagnetic induction coil winding is in the outside of interior electromagnetic induction coil, described interior electromagnetic induction coil is double-layer overlapped coiling, described outer electromagnetic induction coil is individual layer row coiling, and the hub of a spool of described interior electromagnetic induction coil and the hub of a spool of outer electromagnetic induction coil are closed cumulative magnetic core.
4. electromagnetic induction heater according to claim 3, is characterized in that: arrange free coiling between described interior electromagnetic induction coil and outer electromagnetic induction coil.
5. the electromagnetic induction heater according to claim 3 or 4, is characterized in that: the inner side and outer side of described interior electromagnetic induction coil is all pasted with temperature-resistant insulation layer, and the inner side and outer side of described outer electromagnetic induction coil is also all pasted with temperature-resistant insulation layer.
6. electromagnetic induction heater according to claim 5, it is characterized in that: in the middle part correspondence of described shielding magnetic stripe, electromagnetic induction coil outer fix place is provided with the inner ring projection vertical with shielding magnetic stripe, fit outside the interior electromagnetic induction coil that described inner ring is protruding and described, the outer electromagnetic induction coil outer fix place of free end correspondence of shielding magnetic stripe is provided with the outer lug vertical with shielding magnetic stripe, fit outside described outer lug and described outer electromagnetic induction coil, the inner side of the outer electromagnetic induction coil of described shielding magnetic stripe correspondence is provided with internal projection, fit in the inner side of described internal projection and described outer electromagnetic induction coil.
7. electromagnetic induction heater according to claim 1, is characterized in that: the described closed top of cumulative magnetic core abuts with the bottom of container.
8. electromagnetic induction heater according to claim 6, it is characterized in that: the top of described outer lug is provided with that several concentric circless are protruding or point-like is protruding, distance between all concentric circless is equal, and the distance between the described point-like projection of arbitrary neighborhood is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310242415.5A CN103415099B (en) | 2013-06-18 | 2013-06-18 | Electromagnetic induction heater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310242415.5A CN103415099B (en) | 2013-06-18 | 2013-06-18 | Electromagnetic induction heater |
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| Publication Number | Publication Date |
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| CN103415099A CN103415099A (en) | 2013-11-27 |
| CN103415099B true CN103415099B (en) | 2015-12-23 |
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| CN201310242415.5A Active CN103415099B (en) | 2013-06-18 | 2013-06-18 | Electromagnetic induction heater |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107041028A (en) * | 2017-06-06 | 2017-08-11 | 乐山师范学院 | A kind of coil disc of electric stove and its processing technology |
| CN107567121A (en) * | 2017-09-27 | 2018-01-09 | 高雄 | A kind of post pot core, heating source, heating head and heater |
| CN107623957A (en) * | 2017-09-27 | 2018-01-23 | 高雄 | A kind of electromagnetic heating coil, heating source, heating head and heater |
| CN108401311A (en) * | 2018-04-28 | 2018-08-14 | 张小鹏 | A kind of electromagnetic heater |
| CN109237445B (en) * | 2018-06-11 | 2019-11-15 | 广东念智节能科技有限公司 | A kind of annular crack electromagnetic induction heater and its manufacturing method |
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| CN201352864Y (en) * | 2008-12-25 | 2009-11-25 | 九阳股份有限公司 | Electromagnetic wire coil |
| CN201418168Y (en) * | 2009-04-03 | 2010-03-03 | 美的集团有限公司 | Heating coil panel of electromagnetic oven |
| EP2429260A2 (en) * | 2010-09-08 | 2012-03-14 | Delta Electronics, Inc. | Heating module |
| CN202663581U (en) * | 2012-07-09 | 2013-01-09 | 珠海格力电器股份有限公司 | Induction cooker coil panel and induction cooker with same |
| CN203482435U (en) * | 2013-06-18 | 2014-03-12 | 余姚三倍厨电科技有限公司 | Electromagnetic induction heating device |
-
2013
- 2013-06-18 CN CN201310242415.5A patent/CN103415099B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201352864Y (en) * | 2008-12-25 | 2009-11-25 | 九阳股份有限公司 | Electromagnetic wire coil |
| CN201418168Y (en) * | 2009-04-03 | 2010-03-03 | 美的集团有限公司 | Heating coil panel of electromagnetic oven |
| EP2429260A2 (en) * | 2010-09-08 | 2012-03-14 | Delta Electronics, Inc. | Heating module |
| CN202663581U (en) * | 2012-07-09 | 2013-01-09 | 珠海格力电器股份有限公司 | Induction cooker coil panel and induction cooker with same |
| CN203482435U (en) * | 2013-06-18 | 2014-03-12 | 余姚三倍厨电科技有限公司 | Electromagnetic induction heating device |
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| CN103415099A (en) | 2013-11-27 |
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