CN104376957A - Magnetizer for electromagnetic heating and manufacturing technology thereof - Google Patents
Magnetizer for electromagnetic heating and manufacturing technology thereof Download PDFInfo
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- CN104376957A CN104376957A CN201410118990.9A CN201410118990A CN104376957A CN 104376957 A CN104376957 A CN 104376957A CN 201410118990 A CN201410118990 A CN 201410118990A CN 104376957 A CN104376957 A CN 104376957A
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- magnetic conductor
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- electromagnetic heating
- thin soft
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Abstract
The invention relates to a magnetizer for electromagnetic heating and a manufacturing technology of the magnetizer for electromagnetic heating. The magnetizer for electromagnetic heating comprises soft magnetic sheets which are arranged inside in a stacked mode, wherein at least two soft magnetic sheets are continuous at the end of the magnetizer. In this way, the situation that heating is caused due to the fact that a vortex is formed by a magnetic line of force at the end of the magnetizer when the magnetizer is in use, and thus electromagnetic heating efficiency is reduced is avoided. In addition, by the adoption of the continuous structure, the end of a magnetic stripe does not need to be cut, material waste is avoided, and the risk that permeability efficiency is reduced due to cutting damage is lowered. In this way, the process of cutting soft magnetic sheets in a traditional manufacturing technology is omitted, manufacturing time is shortened, and technological cost is reduced; damage, caused by cutting, to the soft magnetic sheets is avoided, and then the defect that the end face of the magnetizer is oxidized is overcome.
Description
[technical field]
The present invention relates to a kind of Electromagnetic Heating field, particularly relate to a kind of Electromagnetic Heating magnetic conductor and manufacture craft thereof.
[background technology]
Because Electromagnetic Heating has safety, efficiently characteristic, by general use in field of household appliances.
But traditional electromagnetic heating wire coil, for promoting its efficiency, reduces magnetic and reveals, usually arrange magnetic stripe on drum.This magnetic stripe is repressed by ferrite powder, sintering is prepared from, and it exists the crisp factor such as easily broken of yielding, poor flatness, matter by press device and powder sintered goods affects, and cause the rate of finished products of this magnetic stripe low, transport difficulty is large.
In addition, this magnetic stripe is arranged on drum, usually has a larger face just to coil, make the alternating magnetic field of coil produce eddy current in magnetic stripe, cause magnetic stripe to generate heat, make the temperature rise of drum higher, easily make coil burn out, and reduce the efficiency of Electromagnetic Heating, be unfavorable for energy-conservation.
Given this, the applicant applied for a kind of Electromagnetic Heating drum early stage, and wherein magnetic stripe is nanocrystalline magnetic stripe, and the present invention improves above-mentioned application.
[summary of the invention]
The invention provides the Electromagnetic Heating magnetic conductor of a kind of safety, high energy efficiency, low-temperature-rise, and a kind of low cost, low-loss making magnetic conductor technique.
A kind of Electromagnetic Heating magnetic conductor, comprises the thin soft magnetic sheet of inner laminated, has at least two panels thin soft magnetic sheet to be continuous print in the end of magnetic conductor.
Described magnetic conductor turns to the repressed strip magnetic conductor formed of laminated substrate by thin soft magnetic sheet, and the thin soft magnetic sheet at the two ends of strip magnetic conductor is continuous print.
Described magnetic conductor comprises multiple magnetic stripe be disposed radially, and the end of magnetic stripe comprises the inner and outer end, and the thin soft magnetic sheet of adjacent magnetic stripe the inner is continuous print.
The star that described magnetic conductor is integrated penetrates shape.
Described magnetic conductor also comprises the sizing core at middle part, and thin soft magnetic sheet is wound on sizing core.
A manufacture craft for Electromagnetic Heating magnetic conductor, comprises the steps:
Step S1: the thin soft magnetic sheet of band shape is turned to multilayer laminated base material;
Step S2: the stacked base material that step S1 makes is pressed into the pending magnetic stripe of end continuous print;
Step S3: the high temperature anneal is carried out to the pending magnetic stripe of step S2;
Step S4: be placed on by the magnetic stripe after step S3 high annealing in insulation curing agent, flood, has flooded post-drying solidification.
In described step S1, the thin soft magnetic sheet of band shape is turned to multilayer laminated ring-type base material.
In described step S1, the thin soft magnetic sheet of band shape is turned to circular, oval ring-type or semi-annular shape.
Also be provided with sizing core in described step S1, thin soft magnetic sheet is wound on sizing core.
Described sizing core is magnetic core.
Also comprise after being pressed into pending magnetic stripe in described step S2, by the step of loosing core that sizing core is extracted out.
Beneficial effect of the present invention:
A kind of Electromagnetic Heating magnetic conductor of the present invention, comprises the thin soft magnetic sheet of inner laminated, has at least two panels thin soft magnetic sheet to be continuous print in the end of magnetic conductor.So, avoid magnetic conductor in use the magnetic line of force form eddy-current heating in end, and reduce the efficiency of Electromagnetic Heating.And due to this continuous print structure, magnetic stripe end, without the need to cutting, namely avoids the waste of material, reduce again the risk of the magnetic conduction efficiency reduction that cutting damage causes.
Further, described magnetic conductor turns to the repressed strip magnetic conductor formed of laminated substrate by thin soft magnetic sheet, and the thin soft magnetic sheet at the two ends of strip magnetic conductor is continuous print.So, directly compressing by the thin soft magnetic sheet of ring-type is strip magnetic conduction bar, and technique is simple.
Magnetic conductor of the present invention comprises multiple magnetic stripe be disposed radially, and the end of magnetic stripe comprises the inner and outer end, and the thin soft magnetic sheet of adjacent magnetic stripe the inner is continuous print.So, adjacent magnetic stripe forms a whole, and has supporting role, decreases the dependence of conventional magnetic stripe to drum, improves the intensity of its entirety.
Further, the star that described magnetic conductor is integrated penetrates shape.Star penetrates the magnetic conductor of shape structure, can cover the drum of whole Electromagnetic Heating, and magnetic conduction efficiency is high, and support effect is better, can replace the bobbin loader of existing electromagnetic heating wire coil.
Further, described magnetic conductor also comprises the sizing core at middle part, and thin soft magnetic sheet is wound on sizing core.Namely sizing core facilitates the coiling of thin soft magnetic sheet in manufacturing process, promotes magnetic conductor coiling and shaping consistency, improves again the intensity of magnetic conductor.
The manufacture craft of a kind of Electromagnetic Heating magnetic conductor of the present invention, comprises the steps:
Step S1: the thin soft magnetic sheet of band shape is turned to multilayer laminated base material;
Step S2: the stacked base material that step S1 makes is pressed into the pending magnetic stripe of end continuous print;
Step S3: the high temperature anneal is carried out to the pending magnetic stripe of step S2;
Step S4: be placed on by the magnetic stripe after step S3 high annealing in insulation curing agent, flood, has flooded post-drying solidification.
So, eliminate in traditional manufacturing technique the step needing to cut thin soft magnetic sheet, namely saved Production Time operation, reduced process costs; Avoid again cutting to cause damage to thin soft magnetic sheet, and then solve the drawback of magnetic conductor end face oxidation.
Further, in described step S1, the thin soft magnetic sheet of band shape is turned to multilayer laminated ring-type base material.The coiling of ring-type base material is convenient, reduces process costs further.When around, ring-type can be into circular, oval ring-type or semi-annular shape.
Also be provided with sizing core in step S1 of the present invention, thin soft magnetic sheet is wound on sizing core, and described sizing core is magnetic core.So, namely sizing core can realize coiling location, can realize again compressing location and strengthen supporting, can also strengthen the effect of magnetic conduction.
Certainly, also comprise after being pressed into pending magnetic stripe in described step S2, by the step of loosing core that sizing core is extracted out.So, sizing core can be reused, and process costs is lower.
[accompanying drawing explanation]
Below in conjunction with accompanying drawing, the present invention is described further:
Fig. 1 is the structural representation of a kind of Electromagnetic Heating magnetic conductor first of the present invention execution mode;
The fabrication processing figure of magnetic conductor shown in Fig. 2 Fig. 1;
Fig. 3 is the structural representation of a kind of Electromagnetic Heating magnetic conductor second of the present invention execution mode;
Fig. 4 is the structural representation of a kind of Electromagnetic Heating magnetic conductor the 3rd of the present invention execution mode;
Fig. 5 is the fabrication processing figure of magnetic conductor shown in Fig. 4;
Fig. 6 is the another kind of flow chart of a kind of Electromagnetic Heating of the present invention magnetic conductor manufacture craft stream.
[embodiment]
Execution mode one:
Refer to the first execution mode of a kind of Electromagnetic Heating magnetic conductor of the present invention shown in Fig. 1, comprise the thin soft magnetic sheet 11 of inner laminated, have at least two panels thin soft magnetic sheet to be continuous print in the end 101 of magnetic conductor 10.
Described magnetic conductor 10 turns to the repressed strip magnetic conductor formed of laminated substrate by thin soft magnetic sheet 11, and the thin soft magnetic sheet at the two ends 101 of strip magnetic conductor is continuous print.
Thin soft magnetic sheet 11 used in present embodiment, its preferred thickness range at 20 μm-30 μm, Ke Yishi: 20 μm, 21 μm, 22 μm, 23 μm, 24 μm, 25 μm, 26 μm, 27 μm, 28 μm, 29 μm, 30 μm.The thickness of magnetic conductor 10 entirety is controlled by the quantity of thin soft magnetic sheet 11 that (insulating lacquer layer or mucigel mainly play the effect reinforced the connection, its thickness can be ignored), magnetic conductor 10 thickness is usually at 0.1mm ~ 3mm, but because monolithic thin soft magnetic sheet 11 thickness is little, adopt the magnetic stripe that overlapped way is made, its thickness controllability is high, even controls at micron order, significantly reduces the thickness of traditional electromagnetic heating wire coil.
Refer to shown in Fig. 2, the fabrication processing figure of a kind of Electromagnetic Heating magnetic conductor of the present invention, comprises the steps:
Step S1: the thin soft magnetic sheet of band shape is turned to multilayer laminated base material;
Step S2: the stacked base material that step S1 makes is pressed into the pending magnetic conductor of end continuous print;
Step S3: the high temperature anneal is carried out to the pending magnetic conductor of step S2;
Step S4: be placed on by the magnetic conductor after step S3 high annealing in insulation curing agent, flood, has flooded post-drying solidification.
In the present embodiment, the thin soft magnetic sheet of band shape is wound on circular mould by described step S1, the demoulding subsequently, forms multilayer laminated circular base material.Adopt circular mould technique for coiling simple, and the tightness in the stacked gap of thin soft magnetic sheet in winding process can be ensured.
Circular base material direct pressing is the pending strip magnetic conductor of end continuous print by described step S2.In present embodiment, adopt and compressingly once to complete, saved processing step, greatly reduced cost.
Described step S3 carries out the high temperature anneal to pending strip magnetic conductor, 0.5 ~ 1.5 hour is placed in the environment of 500 ~ 600 DEG C by pending strip magnetic conductor, high annealing eliminates the stress formed in pressing process, and make thin soft magnetic sheet form nanocrystalline structure, improve its magnetic property.
In described step S4, the magnetic conductor after step S3 high annealing is placed in insulation curing agent, floods, flooded post-drying solidification.Described dip time 0.5 ~ 1.5 hour, to guarantee to insulate between adjacent thin soft magnetic sheet.After having flooded, magnetic conductor is placed in the environment of temperature 80 ~ 120 DEG C, solidifies 0.5 ~ 1.5 hour, guarantee the condensation of insulation curing agent.So namely complete the making of strip magnetic conduction bar.
Strip magnetic conductor inner laminated thin soft magnetic sheet of the present invention, when making alternating magnetic field enter magnetic conductor, enter every layer of thin soft magnetic sheet respectively, substantially reduce the contact-making surface in itself and magnetic field, avoid alternating magnetic field to produce the risk of eddy current on the contact surface, and then avoid the heating loss of magnetic conductor, effectively reduce the self-heating of drum, avoid temperature rise too high, safer.And the end of strip magnetic conductor is continuous print thin soft magnetic sheet structure, effectively prevent magnetic field produces eddy current risk in end, improve its magnetic conduction efficiency further, more stable.
Strip magnetic conductor of the present invention is by coiling, compacting straight forming, decrease the step of excision forming, avoid cutting the damage to thin soft magnetic sheet, cataclysm is there is in the material property of thin soft magnetic sheet because of the instantaneous high-temperature of cutting generation, the power consumption of the magnetic conductor produced is caused to increase, and then affect its magnetic conduction effect, reduce efficiency.In addition, the present invention, without the need to cutting, namely decreases cutting waste material, adds the utilization rate of material, cost-saving and environmental protection more.
Certainly, also can apply resistant to elevated temperatures insulating cement in advance in its lamination surface during described thin soft magnetic sheet coiling, the density of the multilayer laminated base material after the coiling being is shaping is better, the thin soft magnetic sheet loose risk causing compressing poor effect when avoiding the later stage to suppress.
Certainly, the end of described strip magnetic conductor also can be provided with magnetic-conductance portion, and this magnetic-conductance portion can be bonded on the end of magnetic conductor, forms " U " type magnetic stripe, promotes permeability further.
Certainly, turn to multilayer laminated base material in step sl, this multilayer laminated base material also can be oval ring-type or semi-annular shape, and the shape of coiling is according to mould and need the magnet shape made to determine.
Can connect, described magnetic conductor also can be the shape of various abnormal shape according to use scenes demand direct pressing, and as fan-shaped, triangle, " work " type etc., this nonessential change is also in protection scope of the present invention.
Execution mode two:
Refer to the second execution mode of a kind of Electromagnetic Heating magnetic conductor of the present invention shown in Fig. 3, the difference of itself and the first execution mode is: described magnetic conductor comprises multiple magnetic stripe 21 be disposed radially, the end of magnetic stripe 21 comprises inner 211 and outer end 212, and the thin soft magnetic sheet of adjacent magnetic stripe 21 the inner is continuous print.
Further, the star that described magnetic conductor is integrated penetrates shape.The magnetizer structure that one star penetrates shape is easy for installation, and can cover the drum of whole Electromagnetic Heating, magnetic conduction efficiency is high, and support effect is better, can replace the bobbin loader of existing electromagnetic heating wire coil.
In present embodiment, the star of one penetrates shape magnetic conductor, its manufacture craft is different from execution mode one to be: in step S2, during compacting, the mould adopting star to penetrate shape is supported in annular base material, the magnetic conductor that star penetrates shape is formed after compacting, it extends outward multiple magnetic conduction bar, and form the star project type of " rice " font state, multiple magnetic conduction bars of extension are minimum is 3.
Being appreciated that described star penetrates shape magnetic conductor also can be that the ribs of the fan type magnetic conductor of split connects to form.
Other beneficial effect of present embodiment is all consistent with the first execution mode with structure, repeats no more here.
Embodiment three:
Refer to shown in Fig. 4, the 3rd execution mode of a kind of Electromagnetic Heating magnetic conductor of the present invention, the difference of itself and execution mode one is: described magnetic conductor also comprises the sizing core 31 at middle part, and thin soft magnetic sheet is wound on sizing core 31.
Refer to the fabrication processing figure of a kind of Electromagnetic Heating magnetic conductor of present embodiment shown in Fig. 5, in described step S1, be also provided with sizing core 31, thin soft magnetic sheet is wound on sizing core 31, forms the ring-type base material around sizing core 31.Subsequently to the ring-type base material compacting with sizing core 31, be shaped to magnetic conductor.In present embodiment, utilize sizing core 31 coiling thin soft magnetic sheet, make coiling consistency good, adjacent thin soft magnetic sheet tightness is high, and later stage compressing step is simple, without the need to location.Simplify technique further.
Further, described sizing core is magnetic core.Magnetic core can increase suction-operated, promotes coiling consistency, and also can magnetic conduction in the middle part of the magnetic conductor made, and promotes the magnetic conduction efficiency of magnetic conductor.
Other beneficial effect of present embodiment is all consistent with the first execution mode with structure, repeats no more here.
Embodiment four:
Refer to shown in Fig. 6, the 4th execution mode of a kind of electromagnetic heater of the present invention, the difference of itself and execution mode three is: also comprise after being pressed into pending magnetic stripe in described step S2, by the step of loosing core that sizing core is extracted out.
In present embodiment, core of shaping is extracted out, and sizing core can be reused, and reduces process costs further.
Be appreciated that a kind of Electromagnetic Heating magnetic conductor of the present invention can be used in other electromagnetic heater or the equipment of electromagnetic stove, electromagnetic heating pressure pot, electromagnetic heating soybean milk making machine, cooking machine and various electromagnetic heating wire coil.
Claims (10)
1. an Electromagnetic Heating magnetic conductor, comprises the thin soft magnetic sheet of inner laminated, it is characterized in that, has at least two panels thin soft magnetic sheet to be continuous print in the end of magnetic conductor.
2. a kind of Electromagnetic Heating magnetic conductor as claimed in claim 1, is characterized in that, described magnetic conductor turns to the repressed strip magnetic conductor formed of laminated substrate by thin soft magnetic sheet, and the thin soft magnetic sheet at the two ends of strip magnetic conductor is continuous print.
3. a kind of Electromagnetic Heating magnetic conductor as claimed in claim 1, is characterized in that, described magnetic conductor comprises multiple magnetic stripe be disposed radially, and the end of magnetic stripe comprises the inner and outer end, and the thin soft magnetic sheet of adjacent magnetic stripe the inner is continuous print.
4. a kind of Electromagnetic Heating magnetic conductor as claimed in claim 3, it is characterized in that, the star that described magnetic conductor is integrated penetrates shape.
5. a kind of Electromagnetic Heating magnetic conductor as described in Claims 1-4 any one, is characterized in that, described magnetic conductor also comprises the sizing core at middle part, and thin soft magnetic sheet is wound on sizing core.
6. a manufacture craft for Electromagnetic Heating magnetic conductor, is characterized in that, comprises the steps:
Step S1: the thin soft magnetic sheet of band shape is turned to multilayer laminated base material;
Step S2: the stacked base material that step S1 makes is pressed into the pending magnetic conductor of end continuous print;
Step S3: the high temperature anneal is carried out to the pending magnetic conductor of step S2;
Step S4: be placed on by the magnetic conductor after step S3 high annealing in insulation curing agent, flood, has flooded post-drying solidification.
7. the manufacture craft of a kind of Electromagnetic Heating magnetic conductor as claimed in claim 8, is characterized in that, in described step S1, the thin soft magnetic sheet of band shape is turned to multilayer laminated ring-type base material, and described ring-type base material is circular, oval ring-type or semi-annular shape.
8. the manufacture craft of a kind of Electromagnetic Heating magnetic conductor as claimed in claims 6 or 7, is characterized in that, be also provided with sizing core in described step S1, and thin soft magnetic sheet is wound on sizing core.
9. the manufacture craft of a kind of Electromagnetic Heating magnetic conductor as claimed in claim 8, is characterized in that, described sizing core is magnetic core.
10. the manufacture craft of a kind of Electromagnetic Heating magnetic conductor as claimed in claim 8, is characterized in that, also comprises after being pressed into pending magnetic stripe in described step S2, by the step of loosing core that sizing core is extracted out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410118990.9A CN104376957A (en) | 2014-03-28 | 2014-03-28 | Magnetizer for electromagnetic heating and manufacturing technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410118990.9A CN104376957A (en) | 2014-03-28 | 2014-03-28 | Magnetizer for electromagnetic heating and manufacturing technology thereof |
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| Publication Number | Publication Date |
|---|---|
| CN104376957A true CN104376957A (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410118990.9A Pending CN104376957A (en) | 2014-03-28 | 2014-03-28 | Magnetizer for electromagnetic heating and manufacturing technology thereof |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59141351A (en) * | 1983-01-31 | 1984-08-14 | Pioneer Electronic Corp | Production of soft magnetic thin sheet |
| JPS6222414A (en) * | 1985-07-22 | 1987-01-30 | Toshiba Corp | Manufacture of core |
| JPH0574635A (en) * | 1991-09-13 | 1993-03-26 | Hitachi Metals Ltd | Molded iron core |
| CN2890692Y (en) * | 2006-03-20 | 2007-04-18 | 广州建龙电器有限公司 | Electromagnetic stove |
| US20130088401A1 (en) * | 2010-01-29 | 2013-04-11 | Vacuumschmelze Gmbh & Co Kg | Antenna core, antenna, and methods for producing an antenna core and an antenna |
| CN203179646U (en) * | 2013-03-28 | 2013-09-04 | 陈菊香 | Focus-fixing homopolar magnet |
| CN103369752A (en) * | 2013-07-09 | 2013-10-23 | 浙江芯特科技有限公司 | Permanent magnet eddy heating device |
| CN203387708U (en) * | 2013-06-05 | 2014-01-08 | 九阳股份有限公司 | An ultrathin electromagnetic wire reel and an electromagnetic cooking utensil |
-
2014
- 2014-03-28 CN CN201410118990.9A patent/CN104376957A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59141351A (en) * | 1983-01-31 | 1984-08-14 | Pioneer Electronic Corp | Production of soft magnetic thin sheet |
| JPS6222414A (en) * | 1985-07-22 | 1987-01-30 | Toshiba Corp | Manufacture of core |
| JPH0574635A (en) * | 1991-09-13 | 1993-03-26 | Hitachi Metals Ltd | Molded iron core |
| CN2890692Y (en) * | 2006-03-20 | 2007-04-18 | 广州建龙电器有限公司 | Electromagnetic stove |
| US20130088401A1 (en) * | 2010-01-29 | 2013-04-11 | Vacuumschmelze Gmbh & Co Kg | Antenna core, antenna, and methods for producing an antenna core and an antenna |
| CN203179646U (en) * | 2013-03-28 | 2013-09-04 | 陈菊香 | Focus-fixing homopolar magnet |
| CN203387708U (en) * | 2013-06-05 | 2014-01-08 | 九阳股份有限公司 | An ultrathin electromagnetic wire reel and an electromagnetic cooking utensil |
| CN103369752A (en) * | 2013-07-09 | 2013-10-23 | 浙江芯特科技有限公司 | Permanent magnet eddy heating device |
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Application publication date: 20150225 |