CN101364478B - Manufacturing method for combined high-speed electro-magnet iron core - Google Patents
Manufacturing method for combined high-speed electro-magnet iron core Download PDFInfo
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- CN101364478B CN101364478B CN2008100447128A CN200810044712A CN101364478B CN 101364478 B CN101364478 B CN 101364478B CN 2008100447128 A CN2008100447128 A CN 2008100447128A CN 200810044712 A CN200810044712 A CN 200810044712A CN 101364478 B CN101364478 B CN 101364478B
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Abstract
The invention relates to a production method of a combined high-speed electromagnet iron core. The iron core comprises an iron core assembly, an iron core base and a non-magnetic conducting metal housing. The production method comprises the steps of preparing a silicon steel sheet into single sheet formed iron core sheets; laminating to obtain the iron core assembly; integrally embedding into the groove of the iron core base made from a soft magnetic material; removing the part of the iron core assembly over the groove to obtain a combined iron core body; processing the end of the combined iron core body to be a ring-shaped step; loading into the non-magnetic conducting metal housing; filling epoxy glue into the reserved space therebetween; drying and solidifying; processing a ring-shaped groove on the end surface of the solidified combined iron core body, which is positioned above the iron core body and between the outer side of the iron core assembly and the non-magnetic conducting metal housing and is concentric with the round combined iron core body; and forming two coil leading holes in the groove, which pass through the bottom of the iron core base and the bottom of the non-magnetic conducting metal housing. The method combines the silicon steel sheet with the integral soft magnetic material, and carries out mechanical processing after the combination.
Description
Technical field
The present invention relates to a kind of manufacture method of electromagnet core, particularly a kind of manufacture method that is used for the combined high-speed electro-magnet iron core of all kinds of diesel electric-controlled injection systems.
Technical background
High-speed electro-magnet is the crucial control actuating component in the diesel electric-controlled injection system, in diesel electric-controlled injection system, the high of fuel injection amount precisely controlled for reaching, it is little to require employed high-speed electro-magnet to have an eddy current, response speed is fast, it is little to generate heat, and can produce enough characteristics of big electromagnetic force.Present diesel electric-controlled injection system electromagnet extensively adopts E type laminated core structure, the electronically controlled unit pump that BOSCH company produces, and the electrically-controlled pump nozzle that DELPHI company produces all adopts E type laminated core.Because the volume of the electromagnet that this lamination mode is made is big, is not suitable for some small diesel engines.Japan DENSO company adopts spiral lamination shape iron core, has reduced the electromagnet volume, but this iron core forms by 100 multi-disc U-shaped spiral type stack of laminations, needs shaping equipment, and cost of manufacture is higher.
The Chinese patent application number disclosed a kind of miniaturized high-speed electromagnet of 200410081417.1 grant number CN100385106C, because the iron core of this electromagnet is for adopting the whole processing of electrical pure iron or silicon steel material, the eddy current of electromagnet is bigger, heating is big, it is fast to the response speed of high-speed electro-magnet to satisfy diesel electric-controlled injection system, the requirement that electromagnetic force is enough big, more difficult practical application.
The objective of the invention is to overcome the deficiency of above-mentioned prior art, provide a kind of response speed fast, actuating force is powerful, and is simple in structure, and volume is little, is easy to adopt the manufacture method of the high-speed electro-magnet iron core that the universal machine process equipment produces in enormous quantities.
Summary of the invention
The object of the present invention is achieved like this:
The invention provides a kind of manufacture method of combined high-speed electro-magnet iron core, this combined high-speed electro-magnet iron core is a kind of toroidal iron core, is made of iron core group component, iron core base, non-magnetic conductive metal overcoat, and its procedure of processing feature is as follows:
One, with impact style silicon steel sheet is produced the moulding lamination, some moulding laminations are superimposed as the iron core group component, if adopt the orientation silicon steel sheet to be made into the sections chip, then the orientation of orientation silicon steel sheet is vertical with the iron core working face, if adopt non-orientation silicon steel sheet to be made into the sections chip, then the silicon steel material rolling direction is vertical with the iron core working face;
Two, with the machining mode whole soft magnetic material is processed into the cylinder-shaped iron core seat, and is the center with a diameter, radially process a groove, process the annular chamfer of 0.3-0.5mm * 45 ° in the iron core base bottom in the upper surface of cylinder-shaped iron core seat;
The iron core group component integral body that three, will adapt with the groove size of iron core base embeds in the groove of iron core base, removes to exceed iron core base groove part, forms the assembling iron core body;
Four, the mode with machining processes annular indent step on assembling iron core body top;
Five, process non-magnetic conductive metal overcoat in the machining mode, process annular groove on the wall within it, groove depth 0.4-0.5mm;
Six, the assembling iron core body that will have an annular indent step is packed in the non-magnetic conductive metal overcoat that processes, and requiring annular indent step on the iron core group zoarium and the level between the boss of non-magnetic conductive metal overcoat end and the gap of vertical direction is 0.4-0.5mm;
Seven, embedding epoxy glue in the gap between iron core group zoarium and non-magnetic conductive metal overcoat, simultaneously, epoxy glue fills up the annular groove of non-magnetic conductive metal outer casing inner wall, with embedding the assembling iron core body of epoxy glue put into vacuum drying oven and dry, 120 ℃-130 ℃ of temperature continue 2 hours, make epoxy glue solidify, the assembling iron core body firmly is fixed in the non-magnetic conductive metal overcoat, epoxy glue must be anti-high temperature more than 150 ℃; Or the gap location between assembling iron core body cannelure and non-magnetic conductive metal overcoat fills up scolder with welding manner, and the assembling iron core body is fixed in the non-magnetic conductive metal overcoat 4;
Eight, the mode with machining processes cannelure on the end face of the assembling iron core body of drying epoxy glue or fixing with welding manner, and the position of cannelure is on iron-core workpiece, with the same center of circle of cylindrical assembling iron core body;
Nine, process two lead-out wires of coil holes in the bottom of the cannelure of combinations thereof iron-core workpiece, these two lead-out wire holes should penetrate the bottom of iron core base and non-magnetic conductive metal overcoat, promptly get the cylindrical combined high-speed electro-magnet iron core of this method manufacturing.
Combined high-speed electro-magnet iron core of the present invention, the I of the external diameter of its non-magnetic conductive metal overcoat reaches Φ 20mm.
The present invention compared with prior art has following remarkable result:
Simple in structure, be convenient to processing, volume is little, and minimum outer diameter can reach Φ 20mm, is applicable to small diesel engine.Adopt general machining equipment just can form batch process, production cost can reduce 10%-20%.
The present invention is owing to adopt the compound mode of silicon steel sheet and soft magnetism integral material, and after combination, implement machining, both solved the big problem of whole soft magnetic material eddy current, solved again and adopted the big defective of full E type silicon steel sheet stacked volume, under the situation of the equal electromagnetic force of needs, reduced volume, mating under the suitable coil situation, only need the electric current of keeping of the drive current of 12A-16A and 4A-8A, electromagnetic force is at 150N-350N, when reducing coil heating, improve the response speed of electromagnet, also alleviated the burden of control unit ECU.
Description of drawings
Fig. 1 assembly structure schematic diagram of the present invention
The schematic diagram of Fig. 2 iron core group component lamination monolithic
Fig. 3 iron core group component schematic diagram
The vertical view of Fig. 4 Fig. 3
Fig. 5 iron core base schematic diagram
The schematic diagram of Fig. 6 assembling iron core body
The vertical view of Fig. 7 Fig. 6
Fig. 8 assembling iron core body indent step processing schematic diagram
The vertical view of Fig. 9 Fig. 8
The schematic diagram of the non-magnetic conductive metal overcoat of Figure 10
Figure 11 assembling iron core body and non-magnetic conductive metal overcoat assembling schematic diagram
Figure 12 has processed the toroidal iron core vertical view of cannelure
The A-A cutaway view of Figure 13 Figure 12
Figure 14 has processed the vertical view behind the lead-out wires of coil hole
The B-B cutaway view of Figure 15 Figure 14
Figure 16 coil of packing into is drawn the product profile behind the coil lead
The assembly structure schematic diagram of Figure 17 assembling iron core body and the welding of non-magnetic conductive metal overcoat
The schematic diagram of the non-magnetic conductive metal overcoat of Figure 18
Figure 19 assembling iron core body and non-magnetic conductive metal overcoat assembling schematic diagram
Figure 20 has processed the toroidal iron core vertical view of cannelure
The C-C cutaway view of Figure 21 Figure 20
Figure 22 has processed the vertical view behind the lead-out wires of coil hole
The D-D cutaway view of Figure 23 Figure 22
Figure 24 coil of packing into is drawn the product cutaway view behind the coil lead
Embodiment
Present embodiment provides a kind of manufacture method of combined high-speed electro-magnet iron core, the combined high-speed electro-magnet iron core of processing is a kind of cylinder-shaped iron core, as shown in Figure 1, be made up of iron core group component 1, iron core base 2, non-magnetic conductive metal overcoat 4, its procedure of processing feature is as follows:
One, as shown in Figure 2, with cold punching mode blanking forming iron core group component lamination monolithic 1-1, in the mode of laminating some moulding lamination monolithic 1-1 are superimposed as iron core group component 1 again, adopt the orientation silicon steel sheet to be made into the sections chip, the orientation of orientation silicon steel sheet is vertical with the iron core working face, referring to Fig. 3 and Fig. 4;
Two, in the machining mode whole soft magnetic material is processed into cylinder-shaped iron core seat 2, and be the center with a diameter in the upper surface of cylinder-shaped iron core seat 2, radially process a groove 2-1, process the annular chamfer 2-2 of 0.3mm * 45 ° in iron core base bottom, as shown in Figure 5;
Among the groove 2-1 at iron core group component 1 whole embedding iron core base 2 middle parts that three, will adapt, remove the part of stretching out outside the iron core base groove, form the assembling iron core body, see Fig. 6, Fig. 7 with the mode of machining with the groove 2-1 size of iron core base 2;
Four, process a ring-type indent step 3 in assembling iron core body upper end in the machining mode, see Fig. 8, Fig. 9;
Five, in the machining mode non-magnetic conductive metal materials processing is gone out non-magnetic conductive metal overcoat 4.For fixed combination iron-core workpiece 2 preferably, on non-magnetic conductive metal overcoat 4 inwalls, process two annular groove 4-1,4-2, groove depth is 0.5mm, and the outside of groove 4-1 forms boss 4-3, sees Figure 10;
Six, the assembling iron core body that will process indent step 3 with press-fit approach presses fit in the non-magnetic conductive metal overcoat 4, and horizontal direction and vertical direction spacing between annular indent step 3 on the assembling iron core body and the non-magnetic conductive metal overcoat 4 end boss 4-3 are 0.5mm;
Seven, pour into to the gap location between assembling iron core body and the non-magnetic conductive metal overcoat 4 with H907 epoxy glue 5, fill up in two annular grooves;
Eight, put into vacuum drying oven oven dry H907 epoxy glue, bake out temperature is 120 ℃, and drying time 2 hours by cured epoxy glue, is bonded in the assembling iron core body on the inwall of non-magnetic conductive metal overcoat 4, as Figure 11 firmly;
Nine, process cannelure 7 in the machining mode on the end face of combinations thereof iron-core workpiece, Figure 12, Figure 13 with the same center of circle of cylindrical assembling iron core body, are seen in the position of this cannelure 7 on the assembling iron core body;
Ten, process two lead-out wires of coil holes 6, the base of these two lead-out wire hole 6 break-through iron core bases 2 and the base of non-magnetic conductive metal overcoat 4 of symmetry in the bottom of above-mentioned cannelure 7 in the machining mode.See Figure 14, Figure 15, promptly get the combined high-speed electro-magnet iron core that manufacture method of the present invention is produced.
With the coil 8 iron core cannelure 7 of packing into, lead-out wires of coil 9 passes iron core fairlead 6, the binding post 10 and the encapsulating material 11 that are aided with needs again, and make its curing, polish the working face of composite type iron core then, can obtain good sealing effect, response speed is fast, electric current is little, volume miniaturization, the enough powerful high-speed electro-magnet that is applicable to diesel electric-controlled injection system of electromagnetic force.As shown in figure 16.
In the present embodiment, moulding lamination 1-1 adopts the orientation silicon steel sheet to make, and the orientation of orientation silicon steel sheet is vertical with the iron core working face.
Present embodiment provides a kind of manufacture method of combined high-speed electro-magnet iron core, the combined high-speed electro-magnet iron core of processing is a kind of cylinder-shaped iron core, as shown in Figure 1, be made up of iron core group component 1, iron core base 2, non-magnetic conductive metal overcoat 4, its procedure of processing feature is as follows:
One, as shown in Figure 2, with cold punching mode blanking forming iron core group component lamination monolithic 1-1, in the mode of laminating some moulding lamination monolithic 1-1 are superimposed as iron core group component 1 again, referring to Fig. 3 and Fig. 4;
Two, in the machining mode whole soft magnetic material is processed into cylinder-shaped iron core seat 2, and be the center with a diameter in the upper surface of cylinder-shaped iron core seat 2, radially process a groove 2-1, process the annular chamfer 2-2 of 0.5mm * 45 ° in its bottom, as shown in Figure 5;
Three, iron core group component 1 integral body that will adapt with the size of iron core base 2 with press-fit approach embeds among the horizontal groove 2-1 of iron core base 2, removes with the mode of machining and stretches out the outer part of iron core base groove 2-1, forms the assembling iron core body, sees Fig. 6, Fig. 7;
Four, process a ring-type indent step 3 in assembling iron core body upper end in the machining mode, see Fig. 8, Fig. 9;
Five, process non-magnet material in the machining mode, process non-magnetic conductive metal overcoat 4, process two annular groove 4-1,4-2 on non-magnetic conductive metal overcoat 4 inwalls, groove depth is 0.4mm, and the outside of groove 4-1 forms boss 4-3, sees Figure 10;
Six, the assembling iron core body that will have an indent step 3 with press-fit approach presses fit in the non-magnetic conductive metal overcoat 4, and the level between indent step 3 on the assembling iron core body and the end boss 4-3 and the gap of vertical direction are 0.4mm;
Seven, pour into to the gap location between assembling iron core body and the non-magnetic conductive metal overcoat 4 with EMS380-02 type epoxy glue 5, fill up in two annular grooves;
Eight, put into vacuum drying oven and dry epoxy glue, bake out temperature is 130 ℃, and drying time 2 hours by cured epoxy glue, is bonded in the assembling iron core body on the inwall of non-magnetic conductive metal overcoat 4, as Figure 11 firmly;
Nine, process cannelure 7 in the machining mode on the end face of the assembling iron core body of the above-mentioned operation of process, Figure 12, Figure 13 should with the same center of circle of assembling iron core body, be seen in the position of this cannelure 7 on iron-core workpiece;
Ten, process two lead-out wires of coil holes 6 in the bottom of above-mentioned cannelure 7 in the machining mode, these two lead-out wire holes penetrate the bottom of iron core base 2 bottoms and non-magnetic conductive metal overcoat 4, promptly get the combined high-speed electro-magnet iron core that manufacture method of the present invention is produced, see Figure 14, Figure 15.
As if iron core cannelure 7 that coil 8 is packed into, lead-out wires of coil 9 passes iron core fairlead 6, the binding post 10 and the encapsulating material 11 that are aided with needs again, and make its curing, polish the working face of assembling iron core then, can obtain good sealing effect, response speed is fast, electric current is little, volume miniaturization, the enough powerful high-speed electro-magnet that is applicable to diesel electric-controlled injection system of electromagnetic force.As shown in figure 16.
In the present embodiment, moulding lamination 1-1 adopts non-orientation silicon steel sheet to be made into the sections chip, and the silicon steel material rolling direction is vertical with the iron core working face.
Present embodiment provides a kind of manufacture method of combined high-speed electro-magnet iron core, the combined high-speed electro-magnet iron core of processing is a kind of cylinder-shaped iron core, as shown in figure 17, be made up of iron core group component 1, iron core base 2, non-magnetic conductive metal overcoat 4, its procedure of processing feature is as follows:
One, as shown in Figure 2, with cold punching mode blanking forming iron core group component lamination monolithic 1-1, in the mode of laminating some moulding lamination monolithic 1-1 are superimposed as iron core group component 1 again, referring to Fig. 3 and Fig. 4;
Two, in the machining mode whole soft magnetic material is processed into cylinder-shaped iron core seat 2, and be the center with a diameter in the upper surface of cylinder-shaped iron core seat 2, radially process a groove 2-1, process the annular chamfer 2-2 of 0.4mm * 45 ° in its bottom, as shown in Figure 5;
Three, iron core group component 1 integral body that will adapt with the groove size of iron core base 2 with press-fit approach embeds among the horizontal groove 2-1 of iron core base 2, removes with the mode of machining and stretches out the outer part of iron core base groove 2-1, forms the assembling iron core body, sees Fig. 6, Fig. 7;
Four, process a ring-type indent step 3 in assembling iron core body upper end in the machining mode, see Fig. 8, Fig. 9;
Five, in the machining mode whole non-magnet material is processed non-magnetic conductive metal overcoat 4.Process an annular groove 4-1 on non-magnetic conductive metal overcoat 4 inwalls, groove depth is 0.4mm, and the outside of groove 4-1 forms boss 4-3, sees Figure 18;
Six, the assembling iron core body that will have an indent step 3 with press-fit approach presses fit in the non-magnetic conductive metal overcoat 4, and the level between indent step 3 on the assembling iron core body and the non-magnetic conductive metal overcoat end boss 4-3 and the gap of vertical direction are 0.5mm;
Seven, gap location fills up the gap with the mode of welding with scolder 12 between assembling iron core body annular groove 3 and non-magnetic conductive metal overcoat 4, the assembling iron core body is fixed on firmly on the inwall of non-magnetic conductive metal overcoat 4, as Figure 19;
Eight, process cannelure 7 in the machining mode on the end face of combinations thereof iron-core workpiece, Figure 20, Figure 21 should with the same center of circle of cylindrical assembling iron core body, be seen in the position of this cannelure 7 on iron-core workpiece;
Nine, process two lead-out wires of coil holes 6 in the machining mode in above-mentioned cannelure 7, this lead-out wire hole 6 should be positioned at the bottom of cannelure 7, passes the base of iron core base 2 and the base of non-magnetic conductive metal overcoat 4, sees Figure 22, Figure 23.
As if iron core cannelure 7 that coil 8 is packed into, lead-out wires of coil 9 passes iron core fairlead 6, the binding post 10 and the encapsulating material 11 that are aided with needs again, and make its curing, polish the working face of assembling iron core then, can obtain good sealing effect, response speed is fast, electric current is little, volume miniaturization, the enough powerful high-speed electro-magnet that is applicable to diesel electric-controlled injection system of electromagnetic force.As shown in figure 24.
In the present embodiment, moulding lamination 1-1 adopts the orientation silicon steel sheet to make, and the orientation of orientation silicon steel sheet is vertical with the iron core working face.
Claims (1)
1. the manufacture method of a combined high-speed electro-magnet iron core, this combined high-speed electro-magnet iron core is a kind of cylinder-shaped iron core, is made of iron core group component (1), iron core base (2), non-magnetic conductive metal overcoat (4), its procedure of processing feature is as follows:
One, with impact style silicon steel sheet is produced moulding lamination (1-1), some moulding laminations (1-1) are superimposed as iron core group component (1), if adopt the orientation silicon steel sheet to be made into the sections chip, then the orientation of orientation silicon steel sheet is vertical with the iron core working face, if adopt non-orientation silicon steel sheet to be made into the sections chip, then the silicon steel material rolling direction is vertical with the iron core working face;
Two, with the machining mode whole soft magnetic material is processed into cylinder-shaped iron core seat (2), and be that the center radially processes a groove (2-1) in the upper surface of cylinder-shaped iron core seat (2) with a diameter, process the annular chamfer (2-2) of 0.3-0.5mm * 45 ° in the iron core base bottom;
Iron core group component (1) integral body that three, will adapt with the groove size of iron core base (2) embeds in the groove (2-1) of iron core base (2), removes to exceed iron core base groove part, forms the assembling iron core body;
Four, the mode with machining processes annular indent step (3) on assembling iron core body top;
Five, process non-magnetic conductive metal overcoat (4) in the machining mode, process annular groove on the wall within it, groove depth 0.4-0.5mm;
Six, the assembling iron core body that will have an annular indent step (3) is packed in the non-magnetic conductive metal overcoat (4) that processes, and requiring annular indent step (3) on the assembling iron core body and the level between non-magnetic conductive metal overcoat (4) the end boss (4-3) and vertical gap is 0.4-0.5mm;
Seven, embedding epoxy glue (5) in the annular groove of gap between assembling iron core body and non-magnetic conductive metal overcoat (4) and non-magnetic conductive metal overcoat (4) inwall, with embedding the assembling iron core body of epoxy glue put into vacuum drying oven and dry, 120 ℃-130 ℃ of temperature, continue 2 hours, make epoxy glue solidify, the assembling iron core body is fixed in the non-magnetic conductive metal overcoat (4), epoxy glue must be anti-high temperature more than 150 ℃; Or the gap location between assembling iron core body cannelure (3) and non-magnetic conductive metal overcoat (4) fills up the gap with welding manner with scolder (12), and the assembling iron core body is fixed in the non-magnetic conductive metal overcoat (4);
Eight, on the end face of assembling iron core body that oven dry epoxy glue (5) fixes or the assembling iron core body that fixes with scolder (12), process cannelure (7) with the mode of machining, the position of cannelure (7) is on iron-core workpiece, with the same center of circle of cylindrical assembling iron core body;
Nine, process two lead-out wires of coil holes (6) in above-mentioned cannelure (7) bottom, these two lead-out wire holes (6) should penetrate the bottom of iron core base (2) and non-magnetic conductive metal overcoat (4), promptly get the columniform combined high-speed electro-magnet iron core of this method manufacturing.
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| CN101770960B (en) * | 2009-12-25 | 2012-09-05 | 株洲南车时代电气股份有限公司 | Perfusion device of protection glue |
| WO2012075660A1 (en) * | 2010-12-07 | 2012-06-14 | 苏州和林精密科技有限公司 | Automatic stacking and welding process method and apparatus for micro iron cores |
| CN104766688B (en) * | 2015-04-26 | 2017-05-17 | 零八一电子集团四川力源电子有限公司 | Novel combined type connecting structure for high-speed electromagnet core and shell |
| CN104779048B (en) * | 2015-04-26 | 2017-03-01 | 零八一电子集团四川力源电子有限公司 | The processing method of combined high-speed electro-magnet iron core |
| CN107143448A (en) * | 2017-06-30 | 2017-09-08 | 南岳电控（衡阳）工业技术股份有限公司 | Miniature air-cooling single cylinder diesel engine fuel oil sprays single cylinder electric control pump |
| CN114360888B (en) * | 2022-01-18 | 2024-04-30 | 株洲南方机电制造有限公司 | Automatic lamination method of transformer core |
| CN116978690B (en) * | 2023-08-14 | 2024-01-02 | 常州敏杰电器有限公司 | Manufacturing process of coil iron core assembly of elevator band-type brake |
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| US5441233A (en) * | 1994-03-18 | 1995-08-15 | Smc Corporation | Electromagnetic valve |
| CN1696492A (en) * | 2004-12-08 | 2005-11-16 | 成都威特电喷有限责任公司 | Miniaturized high-speed electromagnet |
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Address after: Jin Feng Lu Zhao Jintang County town of 610400 Sichuan city of Chengdu province No. 298 Co-patentee after: Li Zhiqiang Patentee after: Yi Jun Address before: 610051 Sichuan city of Chengdu province Chenghua District Long Tan Xiang Cong Shu Cun, No. 8 Co-patentee before: Li Zhiqiang Patentee before: Yi Jun Address after: Jin Feng Lu Zhao Jintang County town of 610400 Sichuan city of Chengdu province No. 298 Co-patentee after: Li Zhiqiang Patentee after: Yi Jun Address before: 610051 Sichuan city of Chengdu province Chenghua District Long Tan Xiang Cong Shu Cun, No. 8 Co-patentee before: Li Zhiqiang Patentee before: Yi Jun |
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