CN103041740B - Electromagnetic heating type electromagnet Direct driver magnetic stirring apparatus - Google Patents
Electromagnetic heating type electromagnet Direct driver magnetic stirring apparatus Download PDFInfo
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- CN103041740B CN103041740B CN201210589805.5A CN201210589805A CN103041740B CN 103041740 B CN103041740 B CN 103041740B CN 201210589805 A CN201210589805 A CN 201210589805A CN 103041740 B CN103041740 B CN 103041740B
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- iron core
- heating plate
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- stirring apparatus
- direct driver
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Abstract
Electromagnetic heating type electromagnet Direct driver magnetic stirring apparatus of the present invention, comprise the cylindrical metal box of the nonmagnetic substance inlayed in the middle of shell, round-meshed heating plate and circular hole, multipole DM, heat-insulating shield, coil, magnetic stripe and control circuit, described coil is helically line formula coiling in one plane, to be fixedly mounted on below described heating plate and to be connected with described control circuit electricity, heat-insulating shield is fixedly mounted between heating plate and coil, outside coil, magnetic stripe is housed; Its advantage and good effect are: by coil produce alternating magnetic field make heating plate produce eddy-current heating, heat-insulating shield thickness is thin, heating plate and winding space little, electromagnetic conversion efficiency is high, and meanwhile, electric heating is completely isolated, improves security performance; Magnetic agitation adopts electromagnet to produce rotating excitation field Direct driver, decreases intermediate link, and conversion efficiency improves, and because electromagnet can obtain the magnetic field intensity being greater than permanent magnet, so mixing torque can improve greatly, applicability is stronger.
Description
Technical field
The present invention relates to heating and stirring device, particularly a kind of electromagnetic heating type electromagnet Direct driver magnetic stirring apparatus.
Background technology
Electric heating magnetic stirring apparatus is applicable to stirring, heating or agitating heating to carry out simultaneously, and being applicable to viscosity is not very large liquid or solidliquid mixture.During use, stirrer is put into liquid in container, after producing rotating excitation field under heating plate, drive stirrer become circumferential cycle to move thus reach the object of agitated liquid.Coordinate temperature control equipment, can control according to concrete requirement of experiment and maintain sample temperature, help experimenter to set experiment condition, greatly improve the repeatability of experiment.The chemistry of school, medical science, Biochemical Lab, analysis room, the widely used heating liquid agitating device in laboratory of the scientific research departments such as biology, heredity, medicine, environment-friendly laboratory and food, epidemic prevention, medical treatment.
The electrical heating magnetic stirring apparatus of current use comprises base, control circuit, heating plate, heater element and rotary magnet, wherein heating plate heater element generally adopts nickel-cadmium heating wire as exothermic material, with high temperature resistant mica sheet as insulating materials, be placed under heating plate using wrapping in outside with mica sheet again after nickel-cadmium heating wire is on mica sheet as insulating barrier; Heater element is communicated with control circuit, and control circuit controls the break-make of electric current in heater element by temperature controller or controls the size of the electric current passed through, to keep the temperature of heating plate in suitable temperature.The heater element that this kind of electrical heating magnetic stirring apparatus adopts is resistance element, not only the thermal efficiency is lower, and heater element and the panel of electric heating one, housing contacts closely, especially under high temperature insulating materials easily inefficacy heating plate, housing can be caused charged, easily there is personal injury accident; Magnetic stirring apparatus adopts motor to drive permanent magnet to rotate and produces rotating excitation field, and mixing torque is little, and has noise, failure rate of machinery high during motor running.
Summary of the invention
Object of the present invention is exactly the above-mentioned defect that will overcome prior art, provides a kind of efficient, safe electromagnetic heating type electromagnet Direct driver magnetic stirring apparatus.
For achieving the above object, electromagnetic heating type electromagnet Direct driver magnetic stirring apparatus provided by the invention, comprise cylindrical metal box, the multipole DM of the nonmagnetic substance inlayed in the middle of shell, the round-meshed heating plate of Intermediate Gray and circular hole, also comprise the control circuit in described shell and heat-insulating shield, coil and the magnetic stripe under described heating plate; It is characterized in that: the round-meshed heating plate of described Intermediate Gray is bearing in the top of described shell, described multipole DM occupy circular hole intermediate support in the cylindrical metal box of described nonmagnetic substance and to be connected with described control circuit electricity, described coil is helically line formula coiling in one plane, to be fixedly mounted on below described heating plate and to be connected with described control circuit electricity, producing alternating magnetic field by coil makes heating plate produce eddy-current heating, described heat-insulating shield is fixedly mounted between described heating plate and described coil, and magnetic stripe is equipped with in the outside of described coil; The cylindrical metal box of the nonmagnetic substance inlayed in the middle of heating plate circular hole, except supporting multipole DM, can also conduct heat energy and make the center of heating plate not have heated blank district not affect the conduction of rotating excitation field simultaneously.
Electromagnetic heating type electromagnet Direct driver magnetic stirring apparatus of the present invention, wherein said multipole DM adopts the U-shaped iron core superposition of 2,3 or 4 differing heights, and 4,6 or 8 iron core column are evenly distributed in a concentric circumferences, two iron core column of each U-shaped iron core are respectively wound with a magnet exciting coil, each iron core column magnet exciting coil around to and the sense of current that passes through make it all to produce magnetic pole N pole of the same name, each iron core column magnet exciting coil is connected with control circuit electricity respectively, control circuit is successively in turn for each iron core column magnet exciting coil be evenly distributed in a concentric circumferences is powered, a certain moment one iron core column magnet exciting coil power this iron core column produce N pole, another iron core column of the U-shaped iron core be attached thereto then produces synonyms pole S pole, the iron core column magnet exciting coil that subsequent time is adjacent power this iron core column produce N pole, another iron core column of the U-shaped iron core be attached thereto then produces synonyms pole S pole so go round and begin again and just create rotating excitation field.
Electromagnetic heating type electromagnet Direct driver magnetic stirring apparatus of the present invention, the U-shaped iron core of wherein said multipole DM adopts pure iron.
Electromagnetic heating type electromagnet Direct driver magnetic stirring apparatus of the present invention, wherein said heating plate adopts ferrimagnet to make, and is magnetic stainless steel material.
Electromagnetic heating type electromagnet Direct driver magnetic stirring apparatus of the present invention, the material of the cylindrical metal box of wherein said nonmagnetic substance is aluminium, copper, non-magnetic stainless steel.
Advantage and the good effect of electromagnetic heating type electromagnet Direct driver magnetic stirring apparatus of the present invention are: make heating plate generation eddy current that heating plate is heated up owing to being produced alternating magnetic field by coil, heating plate is exactly heater, so thermal inertia is little, after switching electricity, heating plate can heating-cooling rapidly.Heat-insulating shield adopts glass mat or asbestos board to form, and its thickness is thin, and between heating plate and coil, gap is less, so electromagnetic conversion efficiency is higher, more saves electric energy, easy to maintenance, long service life.Meanwhile, due to coil integral sealing and and have nonmetallic heat-insulating shield between heating plate, electric heating is completely isolated, and thus security performance improves greatly, ensure that the personal safety of user.
Be described in detail with reference to accompanying drawing below in conjunction with embodiment.
Accompanying drawing explanation
Fig. 1 is the front sectional view of electromagnetic heating type electromagnet Direct driver magnetic stirring apparatus embodiment of the present invention;
Fig. 2 is that 2 U-shaped iron cores superpose 4 iron core column and magnet exciting coil is evenly distributed on top view in concentric circumferences;
Fig. 3 is that 3 U-shaped iron cores superpose 6 iron core column and magnet exciting coil is evenly distributed on top view in concentric circumferences;
Fig. 4 is that 4 U-shaped iron cores superpose 8 iron core column and magnet exciting coil is evenly distributed on top view in concentric circumferences.
Detailed description of the invention
The embodiment of electromagnetic heating type electromagnet Direct driver magnetic stirring apparatus of the present invention is described in detail below in conjunction with accompanying drawing.
With reference to Fig. 1, electromagnetic heating type electromagnet Direct driver magnetic stirring apparatus provided by the invention, comprise cylindrical metal box 3, the multipole DM 4 of the nonmagnetic substance inlayed in the middle of shell 1, the round-meshed heating plate 2 of Intermediate Gray and circular hole, also comprise and control circuit 8 in heat-insulating shield 5, coil 6, magnetic stripe 7 and described shell 1 under described heating plate 2; It is characterized in that: described heating plate 2 is bearing in the top of described shell 1, described multipole DM 4 occupy circular hole intermediate support in the cylindrical metal box 3 of described nonmagnetic substance and to be connected with described control circuit 8 electricity, described coil 6 is helically line formula coiling in one plane, to be fixedly mounted on below described heating plate 2 and to be connected with described control circuit 8 electricity, producing alternating magnetic field by coil 6 makes heating plate 2 produce eddy-current heating, described heat-insulating shield 5 is fixedly mounted between described heating plate 2 and described coil 6, and magnetic stripe 7 is equipped with in the outside of described coil 6; The cylindrical metal box 3 of the nonmagnetic substance inlayed in the middle of heating plate circular hole, except supporting multipole DM 4, can also conduct heat energy and make the center of heating plate 2 not have heated blank district not affect the conduction of rotating excitation field simultaneously.
With reference to Fig. 2, Fig. 3, Fig. 4, electromagnetic heating type electromagnet Direct driver magnetic stirring apparatus of the present invention, wherein said multipole DM 4 adopts the U-shaped iron core 41 of 2,3 or 4 differing heights to superpose, and 4,6 or 8 iron core column are evenly distributed in a concentric circumferences; Two iron core column of each U-shaped iron core 41 are respectively wound with a magnet exciting coil 42, each iron core column magnet exciting coil 42 around to and the sense of current that passes through make it all to produce magnetic pole N pole of the same name, each iron core column magnet exciting coil 42 is connected control circuit 8 respectively successively in turn for each iron core column magnet exciting coil 42 be evenly distributed in a concentric circumferences is powered generation rotating excitation field with control circuit 8 electricity.Below with 3 U-shaped iron cores 41, 6 iron core column are that example describes in detail, 6 iron core column are denoted as A successively containing magnet exciting coil, B, C, D, E, F, a certain moment A iron core column magnet exciting coil 42 power A iron core column produce N pole, another the iron core column D of the U-shaped iron core 41 be attached thereto then produces synonyms pole S pole, subsequent time B iron core column magnet exciting coil 42 power B iron core column produce N pole, another the iron core column E of the U-shaped iron core 41 be attached thereto then produces synonyms pole S pole, then C iron core column produces N pole, F produces synonyms pole S pole simultaneously, then D iron core column produces N pole, A produces synonyms pole S pole simultaneously, E iron core column produces N pole thereupon, B produces synonyms pole S pole simultaneously, last F iron core column produces N pole, C produces synonyms pole S pole simultaneously, then a new circulation is started so go round and begin again and just create rotating excitation field.
Electromagnetic heating type electromagnet Direct driver magnetic stirring apparatus of the present invention, the U-shaped iron core 41 of wherein said multipole DM 4 adopts pure iron.
Electromagnetic heating type electromagnet Direct driver magnetic stirring apparatus of the present invention, wherein said heating plate 2 adopts ferrimagnet to make, and is magnetic stainless steel material.
Electromagnetic heating type electromagnet Direct driver magnetic stirring apparatus of the present invention, the material of the cylindrical metal box 3 of wherein said nonmagnetic substance is aluminium, copper, non-magnetic stainless steel.
In the embodiment of electromagnetic heating type electromagnet Direct driver magnetic stirring apparatus of the present invention, the temperature-controlled portion in control circuit is similar with the electric heating magnetic stirring apparatus of prior art, carrys out the break-make of control circuit or control the size of the electric current passed through by temperature controller; The circuit of control coil is similar with the widely used control circuit of prior art electromagnetic oven, can be simplified in the multistage adjustment and testing circuit of power output according to actual needs.
Advantage and the good effect of electromagnetic heating type electromagnet Direct driver magnetic stirring apparatus of the present invention are: make heating plate generation eddy current that heating plate is heated up owing to being produced alternating magnetic field by coil, heating plate is exactly heater, so thermal inertia is little, after switching electricity, heating plate can heating-cooling rapidly.Heat-insulating shield adopts glass mat or asbestos board to form, and its thickness is thin, and between heating plate and coil, gap is less, magnetic stripe is equipped with in the outside of coil, can effectively prevent electromagnetic energy from revealing, so electromagnetic conversion efficiency is higher, more save electric energy, easy to maintenance, long service life; Meanwhile, due to coil integral sealing and and have nonmetallic heat-insulating shield between heating plate, electric heating is completely isolated, and thus security performance improves greatly, ensure that the personal safety of user.
Magnetic agitation adopts electromagnet to produce rotating excitation field Direct driver, and decrease the intermediate link of electric energy → mechanical energy → rotating excitation field, conversion efficiency is improved.Simultaneously because electromagnet can obtain by regulation voltage, electric current the magnetic field intensity being greater than permanent magnet, so mixing torque can improve greatly, applicability is stronger.
Owing to there is no the mechanical movement of motor, noise when not only eliminating motor running and reduce fault rate.
Embodiment recited above is only be described the preferred embodiment of the present invention, not limits the spirit and scope of the present invention.Under the prerequisite not departing from design concept of the present invention; the various modification that this area ordinary person makes technical scheme of the present invention and improvement; all should drop into protection scope of the present invention, the technology contents of request protection of the present invention, all records in detail in the claims.
Claims (5)
1. an electromagnetic heating type electromagnet Direct driver magnetic stirring apparatus, comprise cylindrical metal box (3), the multipole DM (4) of the nonmagnetic substance inlayed in the middle of shell (1), the round-meshed heating plate of Intermediate Gray (2) and circular hole, also comprise the control circuit (8) in the heat-insulating shield (5) under described heating plate (2), coil (6), magnetic stripe (7) and described shell (1); It is characterized in that: produce alternating magnetic field by coil (6) and make heating plate (2) produce eddy-current heating; Described heating plate (2) is bearing in the top of described shell (1), described multipole DM (4) is bearing in and occupy in the middle of circular hole in the cylindrical metal box (3) of described nonmagnetic substance, described coil (6) is helically line formula coiling in one plane, to be fixedly mounted on below described heating plate (2) and to be connected with described control circuit (8) electricity, described heat-insulating shield (5) is fixedly mounted between described heating plate (2) and described coil (6), and magnetic stripe (7) is equipped with in the outside of described coil (6).
2. electromagnetic heating type electromagnet Direct driver magnetic stirring apparatus according to claim 1, it is characterized in that: wherein said multipole DM (4) adopts U-shaped iron core (41) superposition of 2,3 or 4 differing heights, 4,6 or 8 iron core column are evenly distributed in a concentric circumferences; Two iron core column of each U-shaped iron core (41) are respectively wound with a magnet exciting coil (42), each iron core column magnet exciting coil (42) around to and the sense of current that passes through make it all to produce magnetic pole N pole of the same name, another iron core column of U-shaped iron core (41) produces synonyms pole S pole, each iron core column magnet exciting coil (42) is connected with control circuit (8) electricity respectively, and control circuit (8) is successively in turn for each iron core column magnet exciting coil (42) power supply be evenly distributed in a concentric circumferences produces rotating excitation field.
3. electromagnetic heating type electromagnet Direct driver magnetic stirring apparatus according to claim 1, is characterized in that: the material of the U-shaped iron core (41) of wherein said multipole DM (4) is pure iron.
4. electromagnetic heating type electromagnet Direct driver magnetic stirring apparatus according to claim 1, is characterized in that: wherein said heating plate (2) adopts ferrimagnet to make, and is magnetic stainless steel material.
5. electromagnetic heating type electromagnet Direct driver magnetic stirring apparatus according to claim 1, is characterized in that: the material of the cylindrical metal box (3) of wherein said nonmagnetic substance is aluminium, copper, non-magnetic stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210589805.5A CN103041740B (en) | 2012-12-16 | 2012-12-16 | Electromagnetic heating type electromagnet Direct driver magnetic stirring apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210589805.5A CN103041740B (en) | 2012-12-16 | 2012-12-16 | Electromagnetic heating type electromagnet Direct driver magnetic stirring apparatus |
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| CN103041740A CN103041740A (en) | 2013-04-17 |
| CN103041740B true CN103041740B (en) | 2015-08-26 |
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| CN201210589805.5A Expired - Fee Related CN103041740B (en) | 2012-12-16 | 2012-12-16 | Electromagnetic heating type electromagnet Direct driver magnetic stirring apparatus |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106240966A (en) * | 2016-08-24 | 2016-12-21 | 济南浩隆生物科技有限公司 | A kind of Full-automatic culture medium filling machine |
| CN108126612A (en) * | 2016-12-01 | 2018-06-08 | 广州国睿科学仪器有限公司 | A kind of electromagnetic agitation component of magnetic stirring apparatus and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2411842Y (en) * | 2000-02-29 | 2000-12-27 | 陈妙凤 | Heating magnetic agitator |
| CN2838811Y (en) * | 2005-10-26 | 2006-11-22 | 秦皇岛首钢长白结晶器有限责任公司 | Electromagnetic mixer cooling device |
| CN201313043Y (en) * | 2009-04-16 | 2009-09-23 | 上海一恒科学仪器有限公司 | Constant-temperature heating magnetic stirring apparatus |
| CN201852269U (en) * | 2010-11-18 | 2011-06-01 | 苏州兆丰塑胶有限公司 | Heating device with stirring function |
-
2012
- 2012-12-16 CN CN201210589805.5A patent/CN103041740B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2411842Y (en) * | 2000-02-29 | 2000-12-27 | 陈妙凤 | Heating magnetic agitator |
| CN2838811Y (en) * | 2005-10-26 | 2006-11-22 | 秦皇岛首钢长白结晶器有限责任公司 | Electromagnetic mixer cooling device |
| CN201313043Y (en) * | 2009-04-16 | 2009-09-23 | 上海一恒科学仪器有限公司 | Constant-temperature heating magnetic stirring apparatus |
| CN201852269U (en) * | 2010-11-18 | 2011-06-01 | 苏州兆丰塑胶有限公司 | Heating device with stirring function |
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