CN102088801A - Electromagnetic induction heating magnetic leakage absorbing coil of solenoid heating coil - Google Patents
Electromagnetic induction heating magnetic leakage absorbing coil of solenoid heating coil Download PDFInfo
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- CN102088801A CN102088801A CN 201110054167 CN201110054167A CN102088801A CN 102088801 A CN102088801 A CN 102088801A CN 201110054167 CN201110054167 CN 201110054167 CN 201110054167 A CN201110054167 A CN 201110054167A CN 102088801 A CN102088801 A CN 102088801A
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Abstract
The invention relates to an electromagnetic induction heating magnetic leakage absorbing coil of a solenoid heating coil, and a neighboring machine is generally damaged in practical operation due to greater interference caused by electromagnetic induction heating magnetic leakage of the solenoid heating coil. In the invention, by virtue of the characteristic that a closing coil has absorption effect on an alternating magnetic field, the absorbing coil (3) is made into the closing coil, and the absorbing coil and an induction heating coil (1) are arranged on the same heating element (2) so as to absorb induction heating magnetic leakage, thus achieving the purpose of reducing interference of magnetic leakage.
Description
Technical field
The present invention relates to a kind of electromagnetic induction heating leakage field absorbing coil of solenoid shape heater coil.
Background technology
Electromagnetic induction heating is divided with its heater coil shape, can be divided into two kinds of disccoil heating and solenoid shape coil heats.Belong to the disccoil heating as the family expenses electromagnetic oven; coil therefrom spaced winding to outer rim; heating member is positioned on the coil plane; as injection molding machine, plastic-wire drawing machine, plastic film blowing machine, plastic granulator screw rod, crude oil deferent, water pipe; the electromagnetic induction heating of metal smelting furnace; belong to the solenoid shape coil heats, around to the other end, heating member is positioned at coil axes in the heart to coil from an end.
Electromagnetic induction heating is to produce alternating magnetic field by the alternating current that flows through heater coil, and the magnetic line of force of alternating magnetic field enters heating member, makes heating member produce eddy current and generates heat.The disccoil heating can be placed high permeability material on coil plane, the guiding magnetic line of force is concentrated to heating member, and the solenoid shape coil heats can not guide the magnetic line of force by this way, and the spiral form coil heats can only rely on the good and bad magnetic line of force of guiding of the magnetic property of heating member own, enter what of the solenoid shape coil heats part magnetic line of force, relevant with this heating member magnetic property, magnetic property is good, enters many, magnetic property is poor, enters few.Ideal state is to wish that all magnetic lines of force all enter heating member, make heating member produce eddy current and heating, but heating member is not all to be good permeability magnetic material mostly, whole magnetic lines of force are focused on the heating member, the part magnetic line of force is arranged to external leakage, because the existence of heating member resistance can not absorb the magnetic line of force that enters heating member fully, there is the part magnetic line of force to continue on the other hand to the two ends radiation.We call leakage field to these two kinds of magnetic dispersions and the magnetic radiation in the electromagnetic induction of solenoid shape heater coil.
Leakage field reduces heating efficiency on the one hand and causes the surrounding environment electromagnetic interference, the more important thing is directly to interfere with adjacent electromagnetic induction heating machine.The electromagnetic induction heating of solenoid shape coil, a heating member is often wanted the multistage heating, two or two above heater will be installed on a heating member, perhaps heating member requires heating power bigger, two or two above heater will be installed on a heating member, because the existence of leakage field, contiguous heater meeting phase mutual interference, adjacent two heater phases mutual interference is the most terrible, an operating voltage 380V power 5KW, the induction heating machine of operating frequency 16KHz, leakage field when the plastic-wire drawing machine screw rod is heated can induce the electric current and voltage above 100V200mA on another adjacent identical induction heating machine coil, though electric current is little, but be everlasting and change under the turn-on and turn-off both of these case in the induction coil loop, disturb when induction coil runs into leakage field when turn-offing, also can induce higher voltage, therefore damage machine in the real work usually.
Goal of the invention
The present invention discloses a kind of electromagnetic induction heating leakage field absorbing coil of o shape heater coil, solves the problem that solenoid shape heater coil electromagnetic induction heating leakage field disturbs.
Technical scheme
The electromagnetic induction heating leakage field of solenoid shape heater coil is unavoidable, reduce its interference to environment, minimizing is to the interference of adjacent machines, a feasible way sponges it exactly, using closing coil to absorb is exactly a simple method, and the closing coil that the resistivity materials with smaller is made has good absorption to alternating electromagnetic field.
Method is that absorbing coil is just made closing coil, be around on the same heating member with load coil, the resistivity of absorbing coil material therefor is less than the resistivity of heating member material therefor, absorbing coil can adopt and the heater coil identical materials, the number of turns is at least 1 circle, general 1/2nd of the adjacent heater coil number of turns of selecting of the number of turns, how around only being subjected to the heating member spatial limitation, winding wire footpath is relevant with institute pitch of the laps number, and the number of turns is many, and the line footpath is little, the number of turns is few, the line footpath is big, when institute's pitch of the laps number is no less than the adjacent heater coil number of turns one half, selects for use identical wire rod coiling with heater coil to get final product.Absorbing coil can be installed on the optional position of heating member, generally is the position that is installed near the heater coil two ends, with not overlapping for agreeing with heater coil.Heating member has two or more heater coils simultaneously, and absorbing coil is around between two heater coils.Absorb needs according to leakage field, a heating member can be at different local a plurality of absorbing coils of installing, and the same place of heating member can only also can be around a plurality of absorbing coils around an absorbing coil.
For the heat that absorbing coil is produced returns to heating member, absorbing coil can be close to the heating member coiling.
Description of drawings
Below in conjunction with Figure of description, introduce the way of absorbing coil.
Fig. 1: plate-like electromagnetic induction heating coil schematic diagram.
Fig. 2: solenoid shape electromagnetic induction heating coil schematic diagram.
Fig. 3: solenoid shape coil electromagnetism induction heating leakage field absorbing coil scheme of installation.
As shown in Figure 1, heater coil 1 is a plate-like, heater coil 1 therefrom spaced winding to outer rim.
As shown in Figure 2, heater coil 1 is a solenoid shape, heater coil 1 from an end around to the other end.
As shown in Figure 3, absorbing coil 3 is a closing coil, and absorbing coil 3 is near heater coil 1 one ends, and is installed on the same heating member 2 with heater coil 1.
Claims (1)
1. the electromagnetic induction heating leakage field absorbing coil of a solenoid shape heater coil, it is characterized in that: absorbing coil (3) is made closing coil, absorbing coil (3) is around on the same heating member (2) with load coil (1), and the resistivity of absorbing coil (3) material therefor is less than the resistivity of heating member (2) material therefor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110054167 CN102088801A (en) | 2011-03-08 | 2011-03-08 | Electromagnetic induction heating magnetic leakage absorbing coil of solenoid heating coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110054167 CN102088801A (en) | 2011-03-08 | 2011-03-08 | Electromagnetic induction heating magnetic leakage absorbing coil of solenoid heating coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102088801A true CN102088801A (en) | 2011-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110054167 Pending CN102088801A (en) | 2011-03-08 | 2011-03-08 | Electromagnetic induction heating magnetic leakage absorbing coil of solenoid heating coil |
Country Status (1)
| Country | Link |
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| CN (1) | CN102088801A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103167658A (en) * | 2011-12-16 | 2013-06-19 | 浙江康盛股份有限公司 | Heating furnace induction coil structure and induction coil connecting method |
| CN105451379A (en) * | 2015-11-03 | 2016-03-30 | 北京自动化控制设备研究所 | Microminiature spiral winding ring type electric heating plate |
| CN111672417A (en) * | 2020-06-17 | 2020-09-18 | 胡雪娇 | Organic fertilizer granulator heating forming plate |
| CN112939451A (en) * | 2021-03-25 | 2021-06-11 | 泰安顺茂新材料技术有限公司 | Glass fiber drawing machine capable of reducing moisture of yarn cluster and using method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0722170A (en) * | 1993-06-30 | 1995-01-24 | Matsushita Electric Ind Co Ltd | Induction heating cooking apparatus |
| CN2797928Y (en) * | 2004-12-17 | 2006-07-19 | 朱正昌 | Double electromagnetic short-circuit loop type electromagnetic oven |
| CN201285098Y (en) * | 2008-09-28 | 2009-08-05 | 东莞市步步高家用电器有限公司 | Magnetic field absorption plant |
| CN201450612U (en) * | 2009-05-08 | 2010-05-05 | 梅超宏 | Electromagnetic radiation heating device |
| CN201550308U (en) * | 2009-12-22 | 2010-08-11 | 苏州国康能源科技有限公司 | Novel industrial electromagnetic induction heating device |
-
2011
- 2011-03-08 CN CN 201110054167 patent/CN102088801A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0722170A (en) * | 1993-06-30 | 1995-01-24 | Matsushita Electric Ind Co Ltd | Induction heating cooking apparatus |
| CN2797928Y (en) * | 2004-12-17 | 2006-07-19 | 朱正昌 | Double electromagnetic short-circuit loop type electromagnetic oven |
| CN201285098Y (en) * | 2008-09-28 | 2009-08-05 | 东莞市步步高家用电器有限公司 | Magnetic field absorption plant |
| CN201450612U (en) * | 2009-05-08 | 2010-05-05 | 梅超宏 | Electromagnetic radiation heating device |
| CN201550308U (en) * | 2009-12-22 | 2010-08-11 | 苏州国康能源科技有限公司 | Novel industrial electromagnetic induction heating device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103167658A (en) * | 2011-12-16 | 2013-06-19 | 浙江康盛股份有限公司 | Heating furnace induction coil structure and induction coil connecting method |
| CN105451379A (en) * | 2015-11-03 | 2016-03-30 | 北京自动化控制设备研究所 | Microminiature spiral winding ring type electric heating plate |
| CN111672417A (en) * | 2020-06-17 | 2020-09-18 | 胡雪娇 | Organic fertilizer granulator heating forming plate |
| CN112939451A (en) * | 2021-03-25 | 2021-06-11 | 泰安顺茂新材料技术有限公司 | Glass fiber drawing machine capable of reducing moisture of yarn cluster and using method thereof |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110608 |