CN105262286A - High frequency motor stator core molding method - Google Patents
High frequency motor stator core molding method Download PDFInfo
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- CN105262286A CN105262286A CN201510632568.XA CN201510632568A CN105262286A CN 105262286 A CN105262286 A CN 105262286A CN 201510632568 A CN201510632568 A CN 201510632568A CN 105262286 A CN105262286 A CN 105262286A
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- iron core
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- silicon steel
- stator core
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- Manufacture Of Motors, Generators (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention relates to a high frequency motor stator core molding method. According to the method, steps of glue joint, extrusion and molding are carried out, reasonable parameters are set, a stator core is formed, loss in the high power frequency environment is quite small as a micro insulation state is realized between punching sheets, and a problem that loss in the high power frequency environment in the prior art is especially large is solved. Through the method, aviation motor high power density requirements are satisfied, technology steps are simple, operation is convenient, and the method is suitable for small-quantity multi-model aviation motor mass production.
Description
Technical field
The present invention relates to a kind of iron core forming method, especially a kind of shaping stator iron core method of high-frequency electric machines.
Background technology
At present, produce electricity generator stator core technological process and be tending towards ripe, normally adopt high velocity ram machine punching press steel disc and be superimposed, it is shaping the silicon steel sheet even circumferential of superposition to be got 6 ~ 8 means of spot welds.More advanced technology utilizes mould to be washed into by high-quality mild-carbon steel strip material cover after two sides are respectively the narrow steel bar of T font double wedge, reel by spiral way on the winder, make each tooth mutually corresponding superimposed, it is shaping the silicon steel sheet even circumferential of winding to be got 6 ~ 8 means of spot welds.
But at aviation field, because aero dynamo has the advantages that quantity is little, model is many, electric frequency is high, in order to manufacture certain model motor stator core, to open separately diel Financial cost higher, and stator core loss in the electric frequency environment of height of welding fabrication structure is large especially; Visible existing mature technology is not suitable for the small lot batch manufacture of aviation high-frequency high-power density electrical machine stator core.
Summary of the invention
The object of this invention is to provide a kind of shaping stator iron core method of high-frequency electric machines, the method goes for small lot batch manufacture, has the advantages that good economy performance, loss are little, can meet the requirement of aero dynamo high-frequency high-power density.
Technical scheme of the present invention is, the shaping stator iron core method of described high-frequency electric machines comprises the following steps:
(1) to prepare material be the silicon steel sheet of 20WTG1500 and material is the corrosion resistant plate of 1Cr18Ni9Ti, described silicon steel sheet and corrosion resistant plate are that centre processes porose square, the diameter in described hole is less than stator core and requires more than internal diameter 2.5mm, and the outer edge lengths of square is greater than stator core requirement more than external diameter 4mm;
(2) be superimposed after silicon steel sheet endoporus and outside alignment, the thickness of superposition is greater than stator core more than required thickness 3.4mm, then carry out bonding with the two-sided glued membrane that material is J-245C, form iron core, for ensureing the smooth of iron core both ends of the surface, each bonding a slice corrosion resistant plate in iron core both sides, will ensure in bonding process that silicon steel sheet is smooth, endoporus is regular;
(3) apply pressure to iron core both sides, pressure is 2.8-3.5MPa, and the hot environment 8-10h then will the iron core of pressure being kept to be placed in 170-200 DEG C, makes glued membrane fully melt, and by glue unnecessary between pressure extrudate piece;
(4) will the iron core of pressure be kept to move in normal temperature environment, after solidification 45-50h, form iron core block;
(5) by linear cutter iron core flute profile;
(6) iron core block cylindrical, endoporus and oblique angle is processed to given size;
(7) clear up iron core surface residual iron filings, form stator core.
Described double faced adhesive tape film thickness is 0.05mm, and the thickness of silicon steel sheet is 0.2mm, and the thickness of corrosion resistant plate is 1mm.
The stator core that the present invention is formed, owing to there is glued membrane between punching, is in micro-state of insulation between punching, therefore entirety loss in the electric frequency environment of height is very little, meets the requirement of aero dynamo high power density; Processing step is simple and direct simultaneously, and convenient operation, need not spend the customized high velocity ram machine mould of wholesale fund, has adapted to batch production status that aero dynamo amount is little, model is many.
Embodiment
A shaping stator iron core method for high-frequency electric machines, comprises the following steps:
(1) to prepare material be the silicon steel sheet of 20WTG1500 and material is the corrosion resistant plate of 1Cr18Ni9Ti, described silicon steel sheet and corrosion resistant plate are that centre processes porose square, the diameter in described hole is less than stator core and requires more than internal diameter 2.5mm, and the outer edge lengths of square is greater than stator core requirement more than external diameter 4mm;
(2) be superimposed after silicon steel sheet endoporus and outside alignment, the thickness of superposition is greater than stator core more than required thickness 3.4mm, then carry out bonding with the two-sided glued membrane that material is J-245C, form iron core, for ensureing the smooth of iron core both ends of the surface, each bonding a slice corrosion resistant plate in iron core both sides, will ensure in bonding process that silicon steel sheet is smooth, endoporus is regular;
(3) apply pressure to iron core both sides, pressure is 2.8-3.5MPa, and the hot environment 8-10h then will the iron core of pressure being kept to be placed in 170-200 DEG C, makes glued membrane fully melt, and by glue unnecessary between pressure extrudate piece;
(4) will the iron core of pressure be kept to move in normal temperature environment, after solidification 45-50h, form iron core block;
(5) by linear cutter iron core flute profile;
(6) iron core block cylindrical, endoporus and oblique angle is processed to given size;
(7) clear up iron core surface residual iron filings, form stator core.
Described double faced adhesive tape film thickness is 0.05mm, and the thickness of silicon steel sheet is 0.2mm, and the thickness of corrosion resistant plate is 1mm.
Claims (2)
1. a shaping stator iron core method for high-frequency electric machines, is characterized in that, described method comprises the following steps:
(1) to prepare material be the silicon steel sheet of 20WTG1500 and material is the corrosion resistant plate of 1Cr18Ni9Ti, described silicon steel sheet and corrosion resistant plate are that centre processes porose square, the diameter in described hole is less than stator core and requires more than internal diameter 2.5mm, and the outer edge lengths of square is greater than stator core requirement more than external diameter 4mm;
(2) be superimposed after silicon steel sheet endoporus and outside alignment, the thickness of superposition is greater than stator core more than required thickness 3.4mm, then carry out bonding with the two-sided glued membrane that material is J-245C, form iron core, for ensureing the smooth of iron core both ends of the surface, each bonding a slice corrosion resistant plate in iron core both sides, will ensure in bonding process that silicon steel sheet is smooth, endoporus is regular;
(3) apply pressure to iron core both sides, pressure is 2.8-3.5MPa, and the hot environment 8-10h then will the iron core of pressure being kept to be placed in 170-200 DEG C, makes glued membrane fully melt, and by glue unnecessary between pressure extrudate piece;
(4) will the iron core of pressure be kept to move in normal temperature environment, after solidification 45-50h, form iron core block;
(5) by linear cutter iron core flute profile;
(6) iron core block cylindrical, endoporus and oblique angle is processed to given size;
(7) clear up iron core surface residual iron filings, form stator core.
2. the shaping stator iron core method of high-frequency electric machines as claimed in claim 1, it is characterized in that, described double faced adhesive tape film thickness is 0.05mm, and the thickness of silicon steel sheet is 0.2mm, and the thickness of corrosion resistant plate is 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510632568.XA CN105262286A (en) | 2015-09-29 | 2015-09-29 | High frequency motor stator core molding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510632568.XA CN105262286A (en) | 2015-09-29 | 2015-09-29 | High frequency motor stator core molding method |
Publications (1)
| Publication Number | Publication Date |
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| CN105262286A true CN105262286A (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510632568.XA Pending CN105262286A (en) | 2015-09-29 | 2015-09-29 | High frequency motor stator core molding method |
Country Status (1)
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| CN (1) | CN105262286A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105978176A (en) * | 2016-06-24 | 2016-09-28 | 无锡新大力电机有限公司 | Magnetic core of new energy automobile drive motor |
| CN109167490A (en) * | 2018-10-22 | 2019-01-08 | 浙江优力仕机电科技股份有限公司 | A kind of stator punching overlapping alignment device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003001651A1 (en) * | 2001-06-25 | 2003-01-03 | Ramesh Dasari Jai | A method of manufacturing low loss laminated magnetic core for magnetic circuits of rotating electrical machinery from thin ribbon of amorphous magnetic metal alloy |
| CN101286676A (en) * | 2008-02-22 | 2008-10-15 | 安泰科技股份有限公司 | Preparing method for amorphous alloy stator iron core of high-speed electric machine |
| CN101673986A (en) * | 2009-10-22 | 2010-03-17 | 湘潭电机股份有限公司 | Manufacturing method of adhesive type iron core of motor |
| CN102005831A (en) * | 2010-10-11 | 2011-04-06 | 南车株洲电机有限公司 | Stator core of large wind driven generator and manufacturing method thereof |
| CN102332760A (en) * | 2011-09-09 | 2012-01-25 | 山东大学威海分校 | Stator core and processing method thereof |
| CN102832761A (en) * | 2012-09-18 | 2012-12-19 | 哈尔滨电机厂有限责任公司 | Preparation method for bonding laminated pieces of silicon steel piece at edge section of iron core of stator into whole |
-
2015
- 2015-09-29 CN CN201510632568.XA patent/CN105262286A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003001651A1 (en) * | 2001-06-25 | 2003-01-03 | Ramesh Dasari Jai | A method of manufacturing low loss laminated magnetic core for magnetic circuits of rotating electrical machinery from thin ribbon of amorphous magnetic metal alloy |
| CN101286676A (en) * | 2008-02-22 | 2008-10-15 | 安泰科技股份有限公司 | Preparing method for amorphous alloy stator iron core of high-speed electric machine |
| CN101673986A (en) * | 2009-10-22 | 2010-03-17 | 湘潭电机股份有限公司 | Manufacturing method of adhesive type iron core of motor |
| CN102005831A (en) * | 2010-10-11 | 2011-04-06 | 南车株洲电机有限公司 | Stator core of large wind driven generator and manufacturing method thereof |
| CN102332760A (en) * | 2011-09-09 | 2012-01-25 | 山东大学威海分校 | Stator core and processing method thereof |
| CN102832761A (en) * | 2012-09-18 | 2012-12-19 | 哈尔滨电机厂有限责任公司 | Preparation method for bonding laminated pieces of silicon steel piece at edge section of iron core of stator into whole |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105978176A (en) * | 2016-06-24 | 2016-09-28 | 无锡新大力电机有限公司 | Magnetic core of new energy automobile drive motor |
| CN109167490A (en) * | 2018-10-22 | 2019-01-08 | 浙江优力仕机电科技股份有限公司 | A kind of stator punching overlapping alignment device |
| CN109167490B (en) * | 2018-10-22 | 2024-03-29 | 浙江优力仕电驱动科技有限公司 | Stator punching sheet overlapping alignment device |
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Application publication date: 20160120 |
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