CN104916385B - Axially cool down RADIAL ring type high-speed electro-magnet - Google Patents
Axially cool down RADIAL ring type high-speed electro-magnet Download PDFInfo
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- CN104916385B CN104916385B CN201510349619.8A CN201510349619A CN104916385B CN 104916385 B CN104916385 B CN 104916385B CN 201510349619 A CN201510349619 A CN 201510349619A CN 104916385 B CN104916385 B CN 104916385B
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Abstract
It is an object of the invention to provide axially cool down RADIAL ring type high-speed electro-magnet, including axial cooled iron core, radial coil.Axial cooled iron core is cylinder, and center is provided with a cylindrical hole, and end face is provided with concentric ring recesses, makes inside and outside formation major-minor magnetic pole.Annular groove is axially provided with least two through holes, through hole section is fan-shaped or kidney-shaped, and is distributed in annular groove center circumferential, or is at least provided with iron core surface two scalloped recess, scalloped recess is distributed on iron core circumference, and scalloped recess internal diameter is less than or equal to annular groove internal diameter.Core portion formation coil inner core between adjacent two through hole or two scalloped recess, radial coil winding is on coil inner core.Traditional single multiturn coil is carried out dispersed placement by the present invention, is reduced the inductance of coil, can be improved the rate of climb and the rate of decay of electric current in coil, accelerate the response speed of electromagnet, and then the control accuracy of oil spout is improved, improve engine fuel economy, reduction discharge.
Description
Technical field
The present invention relates to a kind of electromagnet, specifically diesel fuel system electromagnet.
Background technology
Electronic Control for Fuel Injection System of Diesel Engine has a high injection pressure because of it, and injection timing and fuel injection characteristic are flexible controllable etc.
Feature, is the current effective means for improving Diesel Engine Fuel Economy and reduction hazardous emission etc., has obtained widely applying.
Regardless of whether 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 to ensure that can they the most critical of normal work, most crucial part.Diesel engine electric controlled fuel injection system
The precise control that system is moved to high-speed electro-magnet by ECU is to realize circulating fuel injection quantity, injection timing and fuel injection characteristic
Precise control.
Diesel engine is a kind of periodically output rotary motion dynamic power machine, particularly with high rotary speed working diesel engine, work
Electromagnet high frequency be magnetized repeatedly, due to the permeance of electromagnetism iron material in itself, inevitably cause magnetic hysteresis and whirlpool
Stream loss increase, causes quantity of heat production to increase；In addition, required for the high response for meeting electromagnet, frequently with large driven current density to add
Its fast response speed so that the caloric value increase of coil, therefore the rise of work of electromagnet temperature.And with work of electromagnet temperature
Rise, the magnetic property of its permeability magnetic material declines, and reduces the dynamic responding speed of electromagnet；While the electricity of coil copper conductor
Resistance increase, reduces its electric conductivity, causes power output to increase, reduce the security reliability of coil.
A kind of combined high-speed electro-magnet iron core is disclosed in publication number CN 201204109Y patent document, by iron core
Body, circular iron core seat and non-magnetic metal-coating are constituted, and iron-core workpiece is added together by many sheetmolding silicon steel sheet stacks, forms iron core group
Component；Iron core base forms for soft magnetic materials overall processing, and there is a horizontal groove at its middle part.The electromagnet core employs silicon steel sheet
With the combining form of soft magnetism integral material, vortex is reduced to a certain extent, it is possible to decrease electromagnet core temperature, but it is still
Traditional E type structures, only cored upper surface can be contacted with coolant carries out efficiently heat convection, and iron core middle part and line
Circle is then mainly exchanged heat by heat transfer form, and thermal resistance is big, and heat exchange efficiency is low, it is impossible to good to being carried out in the middle part of coil and iron core
Good cooling, causing the temperature of coil and iron core can not be effectively reduced.
The content of the invention
RADIAL ring type is cooled down it is an object of the invention to provide the axial direction of height response, the good, high reliability that radiates at a high speed
Electromagnet.
The object of the present invention is achieved like this：
Axially cooling RADIAL ring type high-speed electro-magnet of the invention, it is characterized in that：Including axial cooled iron core, radial
Coil, axial cooled iron core is cylindrical structure, and its center is provided with two end faces above and below a cylindrical hole, cylinder and is provided with
Part between concentric ring recesses, the annular groove on two sides is coil inner core, and coil inner core is axially provided with least two through holes,
Coiling radial coil on coil inner core.
The program can also include：
1st, the section of through hole is fan-shaped or kidney-shaped, and the height of radial coil is no more than the depth of annular groove, adjacent two
Leave heat emission hole between radial coil, radial coil surface scribble insulation heat proof material constitute the coil of isolation coolant every
In vitro.
Axially cooling RADIAL ring type high-speed electro-magnet of the invention, it is characterized in that：Including axial cooled iron core, radial
Coil, axial cooled iron core is cylindrical structure, and its center is provided with a cylindrical hole, and it is recessed that one end face of cylinder is provided with annular
Part between another end face of groove, annular groove and cylinder is coil inner core, and coil inner core is axially provided with least two and led to
Coiling radial coil on hole, coil inner core.
The program can also include：
1st, the section of through hole is fan-shaped or kidney-shaped, and a radial coil part is located in annular groove, and another part is located at
On the outside of axial cooled iron core end face.
Axially cooling RADIAL ring type high-speed electro-magnet of the invention, it is characterized in that：Including axial cooled iron core, radial
Coil, axial cooled iron core is cylindrical structure, and its center is provided with two end faces above and below a cylindrical hole, cylinder and is provided with
Part between concentric ring recesses, the annular groove on two sides is the cylinder on the outside of coil inner core, coil inner core and coil inner core
Body is axially provided with coiling radial coil at least two scalloped recess, coil inner core.
The program can also include：
1st, the height of radial coil is no more than between the depth of annular groove, adjacent two radials coil and leaves radiating
Hole, radial coil surface scribbles the inductance loop seclusion body that insulation heat proof material constitutes isolation coolant.
Axially cooling RADIAL ring type high-speed electro-magnet of the invention, it is characterized in that：Including axial cooled iron core, radial
Coil, axial cooled iron core is cylindrical structure, and its center is provided with a cylindrical hole, and it is recessed that one end face of cylinder is provided with annular
Part between another end face of groove, annular groove and cylinder is the circle on the outside of coil inner core, coil inner core and coil inner core
Cylinder is axially provided with coiling radial coil at least two scalloped recess, coil inner core.
1st, a radial coil part is located in annular groove, and another part is located on the outside of axial cooled iron core end face.
Advantage of the invention is that：The axial direction cooling RADIAL ring type high-speed electro-magnet of the present invention, employs axial cooling
The structure of formula iron core and radial coil so that coil energy radial direction is wound on the coil inner core of iron core, and between adjacent two coil
Heat emission hole or groove are left, and then increases the area of dissipation of coil and iron core, while may be such that the convection current of core interior axial direction is changed
Heat is achieved, and core interior and coil is obtained good cooling, it is ensured that the good electric conductivity of coil and safe and reliable
Property and the good magnetic property of core material；The liquid between armature and iron core can be flowed out by heat emission hole or groove in addition so that rank
The liquid compressed between iron and iron core is less, the reduction of armature surface hydraulic coupling, reduces the damping force acted on armature, simultaneously
Also traditional single multiturn coil is subjected to dispersed placement, reduces the inductance of coil, the upper raising speed of electric current in coil can be improved
Degree and the rate of decay, accelerate the response speed of electromagnet, and then improve the control accuracy of oil spout, improve engine fuel economy, drop
Low emission.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is the top 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 are that the section of through hole 8 on axial cooled iron core 1 is fan-shaped form in Fig. 1, and Fig. 4 b are axially cold in Fig. 1
But the section of through hole 10 on formula iron core 1 is the form of kidney-shaped；
Fig. 5 a are the form that axial cooled 1 two end faces of iron core open concentric ring recesses, and Fig. 5 b are axial cooled
Iron core 1 opens the form of concentric ring recesses close to armature side end face；
Fig. 6 is axially provided with the form of two through hole for 1 annular groove of axial cooled iron core 9 in Fig. 1；
Fig. 7 opens the form of scalloped recess for the axial surface of cooled iron core 1 in Fig. 1；
Fig. 8 a are the form that two scalloped recess are opened on the axial surface of cooled iron core 1, and Fig. 8 b are the axial table of cooled iron core 1
Open the form of 3 scalloped recess in face；
Fig. 9 is the axial direction cooling RADIAL ring type that axial cooled iron core 1 is provided with concentric ring recesses close to armature end face
The structural representation of high-speed electro-magnet；
Figure 10 is operation principle schematic diagram of the invention.
Embodiment
Illustrate below in conjunction with the accompanying drawings and the present invention is described in more detail：
With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4 a, Fig. 4 b, Fig. 5 a and Fig. 6, axial direction cooling RADIAL ring type of the invention is electric at a high speed
The composition of the first embodiment of magnet includes axial cooled iron core 1, radial coil 2, inductance loop seclusion body 3, armature
4th, valve rod 5.The axial center of cooled iron core 1 is provided with a cylindrical hole 6, and is provided with concentric ring recesses in the middle of upper and lower ends face
11, make inside and outside formation major-minor magnetic pole.Annular groove 11 is axially provided with least two through holes 8, and (Fig. 4 a, Fig. 6 are respectively out 3 holes and two
The form in hole), through hole section is fan-shaped or kidney-shaped, respectively as shown in Fig. 4 a, Fig. 4 b, and is distributed on annular groove center circumferential
On.Core portion formation coil inner core 9 between adjacent two through hole, radial coil 2 is wound on coil inner core 9, coil
Highly it is no more than between the depth of annular groove 11, adjacent two coil and leaves heat emission hole 7, coil surface scribbles resin or other are exhausted
Edge heat proof material constitutes inductance loop seclusion body 3 with retarder and coolant.
With reference to Fig. 2, Fig. 4 a, Fig. 4 b, Fig. 5 b, Fig. 6 and Fig. 9, cooling RADIAL ring type high-speed electro-magnet in axial direction of the invention
Second of embodiment be to change the axial cooled iron core 1 in the first embodiment, by it up and down in the middle of both ends of the surface
Open concentric ring recesses 11 to be changed into only opening concentric ring recesses 11 close to armature end, so can reduce iron core highly, save
Core material, while one end of coil is then not embedded into iron core, makes it further increase with the contact area of coolant, strengthens dissipating
Heat.
With reference to Fig. 1, Fig. 5 a, Fig. 7, Fig. 8 a and Fig. 8 b, the of cooling RADIAL ring type high-speed electro-magnet in axial direction of the invention
Three kinds of embodiments are to change the axial cooled iron core 1 in the first embodiment, by annular groove 11 be axially provided with to
Few two through holes 8 are changed at least being provided with two scalloped recess 13 on iron core surface, and Fig. 8 a, Fig. 8 b are respectively that to be provided with 3 sectors recessed
The form of groove 13 and two scalloped recess 13, scalloped recess 13 is distributed on iron core circumference, and the internal diameter of scalloped recess 13 is less than or waited
In the internal diameter of annular groove 11.Core portion formation coil inner core 9 between adjacent two scalloped recess 11, the coiling of radial coil 2
On coil inner core 9, the height of coil is no more than between the depth of annular groove, adjacent two coil and leaves radiating groove 12, coil
Surface scribbles resin or other insulation heat proof materials are isolated.Core material can so be greatlyd save, at the same increase with it is cold
But the contact area of liquid, enhances radiating, and the liquid compressed in addition between armature and iron core reduces so that armature surface hydraulic pressure
Power is reduced, and damping force reduces, and is favorably improved the dynamic responding speed of electromagnet.
With reference to Fig. 5 b, Fig. 7, Fig. 8 a, Fig. 8 b and Fig. 9, the of cooling RADIAL ring type high-speed electro-magnet in axial direction of the invention
Four kinds of embodiments are to change the axial cooled iron core 1 in the third embodiment, will be opened in the middle of its up and down both ends of the surface
Concentric ring recesses 11 are changed into only opening concentric ring recesses 11 close to armature end, so can reduce iron core highly, further section
Core material is saved, while one end of coil is then not embedded into iron core, further the contact area of increase coil and coolant, strengthens
Radiating.
Figure 10 shows the operation principle of axially cooling RADIAL ring type high-speed electro-magnet, when radial coil 2 is powered,
Its produce magnetic flux Φ through coil inner core 9, secondary magnetic pole 14, outer working gas gap 15, armature 4, interior working gas gap 16, main pole 17 again
Closed to coil inner core 9 so that armature is attracted by iron core, when suction is more than resistance suffered by armature, armature is initially towards iron
Core is moved, until reaching at maximum displacement.In armature attracting process, it is constantly in fuel oil (while being above-mentioned coolant) ring
In border, the fuel oil between armature and iron core is squeezed, and central through hole 6 and heat emission hole 7 or radiating groove 12 are provided with iron core, by crowded
The fuel oil of pressure can be excluded from central through hole 6 and heat emission hole 7 or radiating groove 12, reduced armature surface hydraulic coupling, reduced it and be obstructed
Buddhist nun's power, improves electromagnet dynamic responding speed, while fuel oil flows through from central through hole 6 and heat emission hole 7 or radiating groove 12, takes away big
Measure the heat that coil and iron core are produced, coil and iron core is obtained good cooling, it is ensured that the good electric conductivity of coil and
Security reliability and the good magnetic property of core material.When radial coil 2 is powered off, magnetic flux Φ disappears, and armature is no longer by iron
Wicking is drawn, and it resets in the presence of back-moving spring.
Claims (8)
1. RADIAL ring type high-speed electro-magnet is axially cooled down, it is characterized in that：Including axial cooled iron core, radial coil, axle
It is cylindrical structure to cooled iron core, its center is provided with two end faces above and below a cylindrical hole, cylinder and is provided with concentric ring
Part between connected in star, the annular groove on two sides is coil inner core, and coil inner core is axially provided with least two through holes, coil
Coiling radial coil on core.
2. axially cooling RADIAL ring type high-speed electro-magnet according to claim 1, it is characterized in that：The section of through hole is fan
Shape or kidney-shaped, the height of radial coil are no more than between the depth of annular groove, adjacent two radials coil and leave heat emission hole,
Radial coil surface scribbles the inductance loop seclusion body that insulation heat proof material constitutes isolation coolant.
3. RADIAL ring type high-speed electro-magnet is axially cooled down, it is characterized in that：Including axial cooled iron core, radial coil, axle
It is cylindrical structure to cooled iron core, its center is provided with a cylindrical hole, and one end face of cylinder is provided with annular groove, annular
Part between groove and cylinder another end face is coil inner core, and coil inner core is axially provided with least two through holes, coil
Coiling radial coil on inner core.
4. axially cooling RADIAL ring type high-speed electro-magnet according to claim 3, it is characterized in that：The section of through hole is fan
Shape or kidney-shaped, a radial coil part are located in annular groove, and another part is located on the outside of axial cooled iron core end face.
5. RADIAL ring type high-speed electro-magnet is axially cooled down, it is characterized in that：Including axial cooled iron core, radial coil, axle
It is cylindrical structure to cooled iron core, its center is provided with two end faces above and below a cylindrical hole, cylinder and is provided with concentric ring
Part between connected in star, the annular groove on two sides be cylinder axis on the outside of coil inner core, coil inner core and coil inner core to
It is provided with coiling radial coil at least two scalloped recess, coil inner core.
6. axially cooling RADIAL ring type high-speed electro-magnet according to claim 5, it is characterized in that：The height of radial coil
Degree is no more than between the depth of annular groove, adjacent two radials coil and leaves heat emission hole, and radial coil surface scribbles insulation
Heat proof material constitutes the inductance loop seclusion body of isolation coolant.
7. RADIAL ring type high-speed electro-magnet is axially cooled down, it is characterized in that：Including axial cooled iron core, radial coil, axle
It is cylindrical structure to cooled iron core, its center is provided with a cylindrical hole, and one end face of cylinder is provided with annular groove, annular
Part between groove and cylinder another end face be cylinder axis on the outside of coil inner core, coil inner core and coil inner core to
It is provided with coiling radial coil at least two scalloped recess, coil inner core.
8. axially cooling RADIAL ring type high-speed electro-magnet according to claim 7, it is characterized in that：Radial coil one
Divide and be located in annular groove, another part is located on the outside of axial cooled iron core end face.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510349619.8A CN104916385B (en) | 2015-06-23 | 2015-06-23 | Axially cool down RADIAL ring type high-speed electro-magnet |
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| CN201510349619.8A CN104916385B (en) | 2015-06-23 | 2015-06-23 | Axially cool down RADIAL ring type high-speed electro-magnet |
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| CN104916385B true CN104916385B (en) | 2017-07-11 |
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| CN105448458B (en) * | 2015-12-10 | 2017-08-04 | 哈尔滨工程大学 | The many adhesive face high-speed electro-magnets of radial direction multi-coil parallel circuits |
| CN105448454B (en) * | 2015-12-10 | 2017-06-20 | 哈尔滨工程大学 | Radial direction multi-coil high-speed electro-magnet |
| CN105575586B (en) * | 2015-12-10 | 2017-07-11 | 哈尔滨工程大学 | Many permanent magnetic radial multi-coil combined high-speed bidirectional electromagnets |
| CN105448457B (en) * | 2015-12-10 | 2018-01-19 | 哈尔滨工程大学 | Radial direction multi-coil combined high-speed bidirectional 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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| DE10039039A1 (en) * | 2000-08-10 | 2002-02-21 | Bosch Gmbh Robert | Solenoid valve for controlling an injection valve for internal combustion engines and electromagnet therefor |
| DE10131199A1 (en) * | 2001-06-28 | 2003-01-16 | Bosch Gmbh Robert | Solenoid valve for controlling an injection valve of an internal combustion engine |
| CN101499700A (en) * | 2008-10-30 | 2009-08-05 | 王铂仕 | Permanent magnetic push-pull brushless motor |
| CN101571206B (en) * | 2009-06-15 | 2010-12-01 | 哈尔滨工程大学 | Dual-coil electromagnetic valve |
| CN101620913B (en) * | 2009-06-15 | 2012-06-06 | 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 |
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