CN104916385A - Axial cooling and radial coil type high-speed electromagnet - Google Patents
Axial cooling and radial coil type high-speed electromagnet Download PDFInfo
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- CN104916385A CN104916385A CN201510349619.8A CN201510349619A CN104916385A CN 104916385 A CN104916385 A CN 104916385A CN 201510349619 A CN201510349619 A CN 201510349619A CN 104916385 A CN104916385 A CN 104916385A
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- 238000001816 cooling Methods 0.000 title claims abstract description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 67
- 230000005540 biological transmission Effects 0.000 claims description 21
- 239000012809 cooling fluid Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 6
- 238000002955 isolation Methods 0.000 claims description 4
- 238000002347 injection Methods 0.000 abstract description 10
- 239000007924 injection Substances 0.000 abstract description 10
- 230000004044 response Effects 0.000 abstract description 5
- 239000011162 core material Substances 0.000 description 32
- 239000000446 fuel Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 5
- 239000000295 fuel oil Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241001347978 Major minor Species 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
- Electromagnets (AREA)
Abstract
The invention aims to provide an axial cooling and radial coil type high-speed electromagnet, which comprises an axial cooling type iron core and radial coils. the axial cooling type iron core is cylindrical, and is provided with a cylindrical through hole in the center and concentric ring-shaped grooves in the end surfaces, so that a master magnetic pole and a secondary magnetic pole are formed outside and inside. at least two through holes are axially formed in the ring-shaped grooves, the cross-sections of the through holes are fan-shaped or waist-shaped, the through holes are uniformly distributed in the central circumferences of the ring-shaped grooves, or at least two fan-shaped grooves are formed in the the surface of the iron core and uniformly distributed in the circumference of the iron core, and the inner diameter of each fan-shaped groove is smaller than or equal to that of each ring-shaped groove. an iron core part between two adjacent through holes or two fan-shaped grooves forms a coil inner core, and a radial coil is wound on the coil inner core. According to the axial cooling and radial coil type high-speed electromagnet, conventional single multi-turn coils are dispersedly arranged, so as to lower the inductance of the coils, increase the raising speed and the attenuation speed of the current in the coils, accelerate the response speed of the electromagnet, further improve the control precision of oil injection, improve the economic performance of a diesel engine and lower emission.
Description
Technical field
What the present invention relates to is a kind of electromagnet, specifically diesel fuel system electromagnet.
Background technology
Electronic Control for Fuel Injection System of Diesel Engine has high injection pressure because of it, and the flexible feature such as controlled of injection timing and fuel injection characteristic, is the effective means improving Diesel Engine Fuel Economy at present and reduce hazardous emission etc., obtains and apply widely.And no matter be electrically-controlled pump nozzle, monoblock pump, dispensing pump, or high pressure common rail electric-controlled fuel injection system with fastest developing speed at present, high-speed electro-magnet is all the most critical, the most crucial parts that ensure that can they normally work.The accurate control that Electronic Control for Fuel Injection System of Diesel Engine is moved to high-speed electro-magnet by ECU (Electrical Control Unit) is to realize the accurate control of circulating fuel injection quantity, injection timing and fuel injection characteristic.
Diesel engine is a kind of periodically output rotary motion dynamic power machine, especially for high rotary speed working diesel engine, the electromagnet high frequency ground of work is magnetized, repeatedly due to the permeance of electromagnet material itself, inevitably make magnetic hysteresis and eddy current loss increase, cause quantity of heat production to increase; In addition, for meeting the height response requirement of electromagnet, the normal large driven current density that adopts is to accelerate its response speed, and the caloric value of coil is increased, and therefore work of electromagnet temperature raises.And along with the rising of work of electromagnet temperature, the magnetic property of its permeability magnetic material declines, reduce the dynamic responding speed of electromagnet; The resistance of coil copper conductor increases simultaneously, reduces its electric conductivity, causes power output to increase, reduce the security reliability of coil.
Disclose a kind of combined high-speed electro-magnet iron core in the patent document of publication number CN 201204109Y, be made up of iron-core workpiece, circular iron core seat and non-magnetic metal-coating, iron-core workpiece is added together by the shaping silicon steel sheet stack of multi-disc, forms iron core group component; Iron core base is that soft magnetic material overall processing forms, and has a horizontal groove in the middle part of it.This electromagnet core have employed the combining form of silicon steel sheet and soft magnetism integral material, reduce eddy current to a certain extent, electromagnet core temperature can be reduced, but it is still traditional E type structure, only cored upper surface can contact with cooling fluid carries out heat convection efficiently, then heat exchange is carried out mainly through heat transfer form with coil in the middle part of iron core, and thermal resistance is large, heat exchange efficiency is low, good cooling cannot be carried out in the middle part of coil and iron core, cause the temperature of coil and iron core effectively not reduce.
Summary of the invention
The object of the present invention is to provide high response, dispel the heat axis cooling radial transmission line ring type high-speed electro-magnet that is good, high reliability.
The object of the present invention is achieved like this:
The present invention axially cools radial transmission line ring type high-speed electro-magnet, it is characterized in that: comprise axial cooled iron core, radial coil, axial cooled iron core is cylindrical structure, its center has a cylindrical hole, upper and lower two end faces of cylinder all have concentric ring recesses, part between the annular groove on two sides is coil inner core, coil inner spindle to having at least two through holes, coiling radial coil on coil inner core.
The program can also comprise:
1, the cross section of through hole is fan-shaped or kidney-shaped, and the height of radial coil is no more than the degree of depth of annular groove, leaves louvre between adjacent two radial coils, and radial coil surface scribbles the inductance loop seclusion body that insulation heat proof material forms isolation cooling fluid.
The present invention axially cools radial transmission line ring type high-speed electro-magnet, it is characterized in that: comprise axial cooled iron core, radial coil, axial cooled iron core is cylindrical structure, its center has a cylindrical hole, cylinder end face has annular groove, part between annular groove and another end face of cylinder is coil inner core, coil inner spindle to having at least two through holes, coiling radial coil on coil inner core.
The program can also comprise:
1, the cross section of through hole is fan-shaped or kidney-shaped, and a radial coil part is positioned in annular groove, and another part is positioned at outside axial cooled iron core end face.
The present invention axially cools radial transmission line ring type high-speed electro-magnet, it is characterized in that: comprise axial cooled iron core, radial coil, axial cooled iron core is cylindrical structure, its center has a cylindrical hole, upper and lower two end faces of cylinder all have concentric ring recesses, part between the annular groove on two sides is coil inner core, the cylinder axis outside coil inner core and coil inner core to having at least two scalloped recess, coiling radial coil on coil inner core.
The program can also comprise:
1, the height of radial coil is no more than the degree of depth of annular groove, leaves louvre between adjacent two radial coils, and radial coil surface scribbles the inductance loop seclusion body that insulation heat proof material forms isolation cooling fluid.
The present invention axially cools radial transmission line ring type high-speed electro-magnet, it is characterized in that: comprise axial cooled iron core, radial coil, axial cooled iron core is cylindrical structure, its center has a cylindrical hole, cylinder end face has annular groove, part between annular groove and another end face of cylinder is coil inner core, the cylinder axis outside coil inner core and coil inner core to having at least two scalloped recess, coiling radial coil on coil inner core.
1, a radial coil part is positioned in annular groove, and another part is positioned at outside axial cooled iron core end face.
Advantage of the present invention is: axially cooling radial transmission line ring type high-speed electro-magnet of the present invention, have employed the structure of axial cooled iron core and radial coil, make that coil can be radial around on the coil inner core of iron core, and between adjacent two coils, leave louvre or groove, and then increase the area of dissipation of coil and iron core, the heat convection of core interior axis can be made to be achieved simultaneously, make core interior and coil obtain good cooling, ensure that the magnetic property that the electric conductivity that coil is good and security reliability and core material are good; Liquid in addition between armature and iron core can be gone out by louvre or concentrated flow, make between armature and iron core less by the liquid compressed, armature surface hydraulic coupling reduces, and reduces the damping force acted on armature, also traditional single multiturn coil is carried out dispersed placement simultaneously, reduce the inductance of coil, the rate of climb and the rate of decay of electric current in coil can be improved, accelerate the response speed of electromagnet, and then improve the control precision of oil spout, improve engine fuel economy, reduce discharge.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the vertical view of axial cooled iron core 1 and radial coil 2 in Fig. 1;
Fig. 3 is the stereogram of axial cooled iron core 1 in Fig. 1;
Fig. 4 a is the through hole cross section in Fig. 1 on axial cooled iron core 1 is fan-shaped form, and Fig. 4 b is through hole 8 cross section in Fig. 1 on axial cooled iron core 1 is the form of kidney-shaped;
Fig. 5 a is the form that axial cooled iron core 1 two end faces all open concentric ring recesses, and Fig. 5 b is axial cooled iron core 1 opens concentric ring recesses form near armature side end face;
Fig. 6 is the form that in Fig. 1, axial cooled iron core 1 annular groove 9 axially has two through hole;
Fig. 7 is the form that in Fig. 1, scalloped recess is opened on axial cooled iron core 1 surface;
Fig. 8 a is the form that two scalloped recess are opened on axial cooled iron core 1 surface, and Fig. 8 b is the form that 3 scalloped recess are opened on axial cooled iron core 1 surface;
Fig. 9 is axial cooled iron core 1 has the axis cooling radial transmission line ring type high-speed electro-magnet of concentric ring recesses structural representation near armature end face;
Figure 10 is operation principle schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing citing, the present invention is described in more detail:
Composition graphs 1, Fig. 2, Fig. 3, Fig. 4 a, Fig. 4 b, Fig. 5 a and Fig. 6, axially cooling radial transmission line ring type high-speed electro-magnet of the present invention the composition of the first execution mode comprise axial cooled iron core 1, radial coil 2, inductance loop seclusion body 3, armature 4, valve rod 5.Axial cooled iron core 1 center has a cylindrical hole 6, and all has concentric ring recesses 11 in the middle of upper and lower both ends of the surface, makes inside and outside formation major-minor magnetic pole.Annular groove 11 axially has at least two through holes 8 (Fig. 4 a, Fig. 6 are respectively out the form of 3 holes and holes), and through hole cross section is fan-shaped or kidney-shaped, respectively as shown in Fig. 4 a, Fig. 4 b, and is distributed in annular groove center circumferential.Core portion between adjacent two through hole forms coil inner core 9, radial coil 2 is wound on coil inner core 9, the height of coil is no more than the degree of depth of annular groove 11, leave louvre 7 between adjacent two coils, coil surface scribbles resin or other insulation heat proof materials form inductance loop seclusion body 3 with retarder and cooling fluid.
Composition graphs 2, Fig. 4 a, Fig. 4 b, Fig. 5 b, Fig. 6 and Fig. 9, the second execution mode of axially cooling radial transmission line ring type high-speed electro-magnet of the present invention is the axial cooled iron core 1 changed in the first execution mode, become only opening concentric ring recesses 11 at close armature end by all opening concentric ring recesses 11 in the middle of its upper and lower both ends of the surface, iron core height can be reduced like this, save core material, one end of coil does not then embed in iron core simultaneously, the contact area of itself and cooling fluid is increased further, strengthens heat radiation.
Composition graphs 1, Fig. 5 a, Fig. 7, Fig. 8 a and Fig. 8 b, the third execution mode of axially cooling radial transmission line ring type high-speed electro-magnet of the present invention is the axial cooled iron core 1 changed in the first execution mode, annular groove 11 is axially had at least two through holes 8 to become and at least have two scalloped recess 13 on iron core surface, Fig. 8 a, Fig. 8 b are respectively the form having 3 scalloped recess 13 and two scalloped recess 13, scalloped recess 13 is distributed on iron core circumferentially, and scalloped recess 13 internal diameter is less than or equal to annular groove 11 internal diameter.Core portion between adjacent two scalloped recess 11 forms coil inner core 9, radial coil 2 is wound on coil inner core 9, the height of coil is no more than the degree of depth of annular groove, leaves radiating groove 12 between adjacent two coils, and coil surface scribbles resin or other insulation heat proof materials are isolated.Greatly can save core material like this, increase the contact area with cooling fluid simultaneously, enhance heat radiation, reduced by the liquid compressed between armature and iron core in addition, armature surface hydraulic coupling is reduced, and damping force reduces, and contributes to the dynamic responding speed improving electromagnet.
Composition graphs 5b, Fig. 7, Fig. 8 a, Fig. 8 b and Fig. 9,4th kind of execution mode of axially cooling radial transmission line ring type high-speed electro-magnet of the present invention is the axial cooled iron core 1 changed in the third execution mode, become only opening concentric ring recesses 11 at close armature end by all opening concentric ring recesses 11 in the middle of its upper and lower both ends of the surface, iron core height can be reduced like this, further saving core material, one end of coil does not then embed in iron core simultaneously, the contact area of further increase coil and cooling fluid, strengthens heat radiation.
Figure 10 shows the operation principle of axially cooling radial transmission line ring type high-speed electro-magnet, when radial coil 2 is energized, its magnetic flux Φ produced arrives coil inner core 9 again through coil inner core 9, secondary magnetic pole 14, outer working gas gap 15, armature 4, interior working gas gap 16, main pole 17 and closes, armature is attracted by iron core, when suction is greater than resistance suffered by armature, armature starts towards iron core motion, until arrive maximum displacement place.In armature attracting process, it is in fuel oil (being simultaneously above-mentioned cooling fluid) environment always, fuel oil between armature and iron core is squeezed, and iron core has central through hole 6 and louvre 7 or radiating groove 12, extruded fuel oil can be got rid of from central through hole 6 and louvre 7 or radiating groove 12, reduce armature surface hydraulic coupling, reduce damping force suffered by it, improve electromagnet dynamic responding speed, simultaneously fuel oil flows through from central through hole 6 and louvre 7 or radiating groove 12, take away the heat of a large amount of coil and iron core generation, coil and iron core is made to obtain good cooling, ensure that the magnetic property that the electric conductivity that coil is good and security reliability and core material are good.When radial coil 2 power-off, magnetic flux Φ disappears, and armature is no longer attracted by iron core, and it resets under the effect of back-moving spring.
Claims (8)
1. axially cool radial transmission line ring type high-speed electro-magnet, it is characterized in that: comprise axial cooled iron core, radial coil, axial cooled iron core is cylindrical structure, its center has a cylindrical hole, upper and lower two end faces of cylinder all have concentric ring recesses, part between the annular groove on two sides is coil inner core, coil inner spindle to having at least two through holes, coiling radial coil on coil inner core.
2. axially cooling radial transmission line ring type high-speed electro-magnet according to claim 1, it is characterized in that: the cross section of through hole is fan-shaped or kidney-shaped, the height of radial coil is no more than the degree of depth of annular groove, leave louvre between adjacent two radial coils, radial coil surface scribbles the inductance loop seclusion body that insulation heat proof material forms isolation cooling fluid.
3. axially cool radial transmission line ring type high-speed electro-magnet, it is characterized in that: comprise axial cooled iron core, radial coil, axial cooled iron core is cylindrical structure, its center has a cylindrical hole, cylinder end face has annular groove, part between annular groove and another end face of cylinder is coil inner core, coil inner spindle to having at least two through holes, coiling radial coil on coil inner core.
4. axially cooling radial transmission line ring type high-speed electro-magnet according to claim 3, it is characterized in that: the cross section of through hole is fan-shaped or kidney-shaped, and a radial coil part is positioned in annular groove, another part is positioned at outside axial cooled iron core end face.
5. axially cool radial transmission line ring type high-speed electro-magnet, it is characterized in that: comprise axial cooled iron core, radial coil, axial cooled iron core is cylindrical structure, its center has a cylindrical hole, upper and lower two end faces of cylinder all have concentric ring recesses, part between the annular groove on two sides is coil inner core, the cylinder axis outside coil inner core and coil inner core to having at least two scalloped recess, coiling radial coil on coil inner core.
6. axially cooling radial transmission line ring type high-speed electro-magnet according to claim 5, it is characterized in that: the height of radial coil is no more than the degree of depth of annular groove, leave louvre between adjacent two radial coils, radial coil surface scribbles the inductance loop seclusion body that insulation heat proof material forms isolation cooling fluid.
7. axially cool radial transmission line ring type high-speed electro-magnet, it is characterized in that: comprise axial cooled iron core, radial coil, axial cooled iron core is cylindrical structure, its center has a cylindrical hole, cylinder end face has annular groove, part between annular groove and another end face of cylinder is coil inner core, the cylinder axis outside coil inner core and coil inner core to having at least two scalloped recess, coiling radial coil on coil inner core.
8. axially cooling radial transmission line ring type high-speed electro-magnet according to claim 7, it is characterized in that: a radial coil part is positioned in annular groove, another part is positioned at outside axial cooled iron core end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510349619.8A CN104916385B (en) | 2015-06-23 | 2015-06-23 | Axially cool down RADIAL ring type high-speed electro-magnet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510349619.8A CN104916385B (en) | 2015-06-23 | 2015-06-23 | Axially cool down RADIAL ring type high-speed electro-magnet |
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| Publication Number | Publication Date |
|---|---|
| CN104916385A true CN104916385A (en) | 2015-09-16 |
| CN104916385B CN104916385B (en) | 2017-07-11 |
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| CN201510349619.8A Expired - Fee Related CN104916385B (en) | 2015-06-23 | 2015-06-23 | Axially cool down RADIAL ring type high-speed electro-magnet |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105448454A (en) * | 2015-12-10 | 2016-03-30 | 哈尔滨工程大学 | Radial multi-coil high-speed electromagnet |
| CN105448457A (en) * | 2015-12-10 | 2016-03-30 | 哈尔滨工程大学 | Radial multi-coil combined high-speed bidirectional electromagnet |
| CN105448458A (en) * | 2015-12-10 | 2016-03-30 | 哈尔滨工程大学 | Radial multi-coil high-speed electromagnet employing parallel magnetic circuit and multiple pickup surfaces |
| CN105575586A (en) * | 2015-12-10 | 2016-05-11 | 哈尔滨工程大学 | Multi-permanent magnet and radial multi-coil combined high-speed bidirectional electromagnet |
| CN105931800A (en) * | 2016-05-19 | 2016-09-07 | 哈尔滨工程大学 | Double-oil-way cooling type high-speed electromagnet |
| CN107516572A (en) * | 2017-09-30 | 2017-12-26 | 深圳振华富电子有限公司 | SMD power inductor and its manufacture method |
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| EP1179675A2 (en) * | 2000-08-10 | 2002-02-13 | Robert Bosch Gmbh | Solenoid valve controlling the injection valve of an internal combustion engine and electromagnet for it |
| WO2003002868A1 (en) * | 2001-06-28 | 2003-01-09 | Robert Bosch Gmbh | Magnetic valve for controlling an injection valve in an internal combustion engine |
| CN101499700A (en) * | 2008-10-30 | 2009-08-05 | 王铂仕 | Permanent magnetic push-pull brushless motor |
| CN101571206A (en) * | 2009-06-15 | 2009-11-04 | 哈尔滨工程大学 | Dual-coil electromagnetic valve |
| CN101620913A (en) * | 2009-06-15 | 2010-01-06 | 哈尔滨工程大学 | Double electromagnet |
| CN203205172U (en) * | 2013-04-28 | 2013-09-18 | 江阴林格科技有限公司 | High-speed electromagnet core |
| CN204680497U (en) * | 2015-06-23 | 2015-09-30 | 哈尔滨工程大学 | Axially cooling radial transmission line ring type high-speed electro-magnet |
-
2015
- 2015-06-23 CN CN201510349619.8A patent/CN104916385B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1179675A2 (en) * | 2000-08-10 | 2002-02-13 | Robert Bosch Gmbh | Solenoid valve controlling the injection valve of an internal combustion engine and electromagnet for it |
| WO2003002868A1 (en) * | 2001-06-28 | 2003-01-09 | Robert Bosch Gmbh | Magnetic valve for controlling an injection valve in an internal combustion engine |
| CN101499700A (en) * | 2008-10-30 | 2009-08-05 | 王铂仕 | Permanent magnetic push-pull brushless motor |
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| CN204680497U (en) * | 2015-06-23 | 2015-09-30 | 哈尔滨工程大学 | Axially cooling radial transmission line ring type high-speed electro-magnet |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105448454A (en) * | 2015-12-10 | 2016-03-30 | 哈尔滨工程大学 | Radial multi-coil high-speed electromagnet |
| CN105448457A (en) * | 2015-12-10 | 2016-03-30 | 哈尔滨工程大学 | Radial multi-coil combined high-speed bidirectional electromagnet |
| CN105448458A (en) * | 2015-12-10 | 2016-03-30 | 哈尔滨工程大学 | Radial multi-coil high-speed electromagnet employing parallel magnetic circuit and multiple pickup surfaces |
| CN105575586A (en) * | 2015-12-10 | 2016-05-11 | 哈尔滨工程大学 | Multi-permanent magnet and radial multi-coil combined high-speed bidirectional electromagnet |
| CN105448454B (en) * | 2015-12-10 | 2017-06-20 | 哈尔滨工程大学 | Radial direction multi-coil high-speed electro-magnet |
| CN105931800A (en) * | 2016-05-19 | 2016-09-07 | 哈尔滨工程大学 | Double-oil-way cooling type high-speed electromagnet |
| CN105931800B (en) * | 2016-05-19 | 2018-06-12 | 哈尔滨工程大学 | Double oil circuits cool down high-speed electro-magnet |
| CN107516572A (en) * | 2017-09-30 | 2017-12-26 | 深圳振华富电子有限公司 | SMD power inductor and its manufacture method |
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|---|---|
| CN104916385B (en) | 2017-07-11 |
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Granted publication date: 20170711 |