CN105119448B - A kind of stacked amorphous motor stator core dipping lacquer curing - Google Patents
A kind of stacked amorphous motor stator core dipping lacquer curing Download PDFInfo
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- CN105119448B CN105119448B CN201510555750.XA CN201510555750A CN105119448B CN 105119448 B CN105119448 B CN 105119448B CN 201510555750 A CN201510555750 A CN 201510555750A CN 105119448 B CN105119448 B CN 105119448B
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Abstract
The present invention relates to field of motor manufacturing, and in particular to a kind of dipping lacquer curing molding method of stacked amorphous motor stator core, this method comprise the following steps:A. amorphous alloy strips are cut into multiple thin slices with same shape and thickness according to motor size；B., the thin slice is stacked into the column of predetermined altitude, provides axial compressive force to the both ends of the column using fixture, and the column and fixture are arranged in the vacuum paint dipping chamber with spin coater；C. the axial compressive force that the fixture provides is adjusted, controls the distance between described thin slice between 0.01~0.03mm；D. insulating epoxy glue dilution is injected into the vacuum paint dipping chamber, rotation is carried out using spin coater and gets rid of；E. the axial compressive force that the fixture provides is increased；F. d and e is repeated several times, until the resinous coat between the thin slice reaches predetermined thickness；G. be heating and curing processing.The stator core prepared according to the inventive method, there is the advantages of fill factor is big, iron loss is few.
Description
Technical field
The present invention relates to field of motor manufacturing, and in particular to a kind of dipping lacquer of stacked amorphous motor stator core is solidified into
Type method.
Background technology
Report is shown in recent years, and motor amount reaches the 50% of world's total electricity consumption in global range, in China even
Reach more than 60%.The loss of electric machine how is reduced, improves electric efficiency, develops high efficiency motor, is to solve energy shortage, is reduced dirty
Contaminate one of important channel of discharge.The characteristics of Amorphous Metal Motor has efficiency high compared with conventional motors, and energy consumption is low, efficiency
Up to more than 80%, more than 10% is improved than conventional motors efficiency, is the important directions of current motor research.Compared to conventional motors
Silicon steel material compare, non-crystalline material thickness is only 0.03mm, excessive high hardness and it is brittle, should not process and cut, should to machinery
The features such as power sensitivity so that motor difficulty of processing is big, and processing technology is complicated, high processing costs.Seriously limit amorphous motor
Application.1998, after Honeywell Corp. USA patent W099/66624 discloses a kind of amorphous band superposition camber
The dentation amorphous stator that dipping lacquer is formed by curing.Safe and sound house journal CN101286676A discloses a kind of amorphous alloy film within 2008
Lamination, dipping lacquer solidification, the stator core handling process of excision forming.2010, patent CN101908796A disclosed amorphous powder
The method that adhering and solidifying forms stator.The production program of the amorphous alloy stator iron core of these patents all employ dipping lacquer and solidification
Means cause amorphous thin slice molding bonded, but the dipping lacquer solidification between the uncontrollable amorphous thin slice of these dipping lacquer curings
Effect, cause air gap be present between thin slice, fill factor piece is small, increases magnetic circuit reluctance and motor operating current.Meanwhile thin slice it
Between dipping lacquer solidify uneven, easily cause that iron core is locally loose, easily produce vibration and larger noise, and in core interior
Larger stress is produced, causes the loss of stator core substantially to increase.
The content of the invention
The technical problems to be solved by the invention are the deficiencies for above amorphous iron core dipping lacquer curing, there is provided a kind of
Make the controllable dipping lacquer curing of fast amorphous iron core dipping lacquer curing rate, dipping lacquer solidification uniform ground, fill factor.
The present invention solves the technical scheme that uses of above-mentioned technical problem as a kind of, there is provided stacked amorphous motor stator core
Dipping lacquer curing molding method：Rotation spin coating glue is carried out to iron core amorphous thin slice during vacuum paint dipping；Revolved using multiple dipping lacquer
Spin coating gluing method；Control rotation spin coating glue speed successively, with the use of the resinous coat of different dilute strengths, and corresponding alignment jig
Fastening pressure, at a certain temperature curing molding.Specifically, this method comprises the following steps:
A. amorphous alloy strips are cut into multiple thin slices with same shape and thickness according to motor size；
B., the thin slice is stacked into the column of predetermined altitude on fixture, the fixture is to the both ends of the column
Axial compressive force is provided, the lower end of the fixture is fixedly connected with the electric machine rotational axis in spin coater vacuum paint dipping chamber, is made described
Column and fixture are in the vacuum paint dipping chamber of spin coater；
C. the axial compressive force is adjusted by fixture upper end pipe regulating screw nut with control between the thin slice away from
From the starting spacing between the thin slice is 0.01~0.03mm.
D. insulating epoxy glue dilution is injected into the vacuum paint dipping chamber, rotation is carried out using spin coater and gets rid of；
E. the axial compressive force that the fixture provides is increased；
F. d and e is repeated several times, until the resinous coat between the thin slice reaches predetermined thickness；
G. the processing that is heating and curing is carried out to the column.
On the basis of above-mentioned technical proposal, the present invention can also improve as follows:
Further, the stacking direction of the thin slice in step b is put down with the vacuum pressure difference direction in the vacuum paint dipping chamber
OK.
Further, the electric machine rotational axis of the spin coater in step b is parallel with the normal direction of the thin slice.
Both the above improvement project is advantageous to insulating epoxy glue and uniformly spread between amorphous thin slice when rotation is got rid of.
Further, the lower end of the fixture in step b is fixedly connected by bolt with the electric machine rotational axis of spin coater.
Further, the insulating epoxy glue dilution described in step d by insulating epoxy glue and acetone according to 1:3
~5 weight ratio is formulated, the insulating epoxy glue be epoxy resin, methylnadic anhydride and toughener according to
10:8:1 weight ratio mixes, and the viscosity of the epoxy resin is 20000~40000mPas, and softening temperature is 25 DEG C,
0.41~0.44/100g of epoxide number.
Further, the injection direction of the insulating epoxy glue and the vacuum pressure difference direction phase in the vacuum paint dipping chamber
Together.Be advantageous to insulating epoxy glue using this improvement project to penetrate between amorphous thin slice.
Further, in step f during each repeat step d and e, insulating epoxy gum concentration is gradually passed described in step d
Subtract, the motor speed gradually be incremented by, every time repeatedly when, insulating epoxy gum concentration is about the 0.5~0.8 of previous concentration
Times, motor speed is about 1.2~2.0 times of previous rotating speed.The concentration of insulating epoxy glue reduces, then its viscosity subtracts therewith
Small, permeability is stronger；Motor speed increase, also can diffusivity from reinforced insulation epoxide-resin glue to sheet gaps depths.
Further, the rotation of spin coater described in step d when getting rid of motor speed be 200~2000r/min, rotation get rid of the time be 5~
10min。
Further, the specific requirement of processing of being heating and curing described in step g is with 4~10 DEG C/min speed to be warming up to 100
2~4h is incubated after~120 DEG C.
It is of the invention compared with traditional dipping lacquer curing process, there is advantages below：Dipping lacquer is uniform between amorphous thin slice, and coating is put down
Whole, coating layer thickness is controllable；Iron space factor is bigger, and solidification intensity is more preferable, and iron core inter-laminar stress is small, and stator iron loss is reduced.
Embodiment
The method according to the invention, first on amorphous band production line, using the cutter device of routine by non-crystaline amorphous metal
Band cuts into multiple amorphous thin slices with same thickness and shape according to motor size.
Then the amorphous thin slice is stacked into the column of predetermined altitude, using the fixture steel plate of fixture to the column
The both ends of body provide axial compressive force, and fixture lower end is directly fixed on the electric machine main shaft of spin coater with nut.
Adjust the axial compressive force that the fixture provides, the pressure for the starting that fixture provides is smaller, the column be in by
Active state is limited, so that it is guaranteed that amorphous thin slice is smooth, and amorphous sheet gaps are larger, and gap is about 0.03mm, is easy to adhesive
Diffusion dipping.
Insulating epoxy glue dilution is injected into the vacuum paint dipping chamber, rotation is carried out using spin coater and gets rid of；Increase institute
The axial compressive force of fixture offer is provided；Above-mentioned injecting glue and pressurization steps are repeated, until the resinous coat between the thin slice reaches pre-
Determine thickness.The processing that is heating and curing finally is carried out to the column.
Embodiment 1：
The method according to the invention, a kind of stacked amorphous motor stator core is prepared, is comprised the following steps：
A. it is the Fe that 85mm, thickness are about 0.03mm by width80Si9B11(at.%) iron-based amorphous alloy ribbon material cutting
It is 85mm square amorphous thin slice into length and width.
B., the amorphous thin slice is stacked into the column of 40mm height on fixture, using fixture to the column
Both ends provide axial compressive force, and the column and fixture are arranged in the vacuum paint dipping chamber with TA series spin coaters；
C. the axial compressive force that the fixture provides is adjusted, it is about 0.03mm to control the distance between described thin slice；
D. insulating epoxy glue dilution is injected into the vacuum paint dipping chamber, rotation is carried out using spin coater and gets rid of；It is described
Insulating epoxy glue dilution by insulating epoxy glue and acetone according to 1:4 weight ratio is formulated, the insulation
Epoxide-resin glue is epoxy resin, methylnadic anhydride and toughener according to 10:8:1 weight ratio mixes, its middle ring
The viscosity of oxygen tree fat is in 25000~30000mPas, and softening temperature is 25 DEG C, 0.41~0.44/100g of epoxide number；The rotation
The rotation of painting machine when getting rid of motor speed be 1000r/min, revolve that to get rid of the time be 8min；
E. the axial compressive force that the fixture provides is increased；
F. d and e is repeated several times, until the resinous coat between the thin slice reaches 0.01mm；When repeating d and e every time, often
During secondary repetition, insulating epoxy gum concentration is about 0.8 times of previous concentration, and motor speed is about 1.3 times of previous rotating speed；
G. be heating and curing processing；3h is incubated after being warming up to 120 DEG C with 5 DEG C/min speed.
Using conventional cutting method, such as after spark cutting, plasma-torch cutting and laser cutting etc. are to above-mentioned solidification
Column cut, cut into high 40mm, internal diameter 30mm, external diameter 70mm annular core.Use Iwatsu SY8232B-
Core loss of the above-mentioned iron core that H analyzers measure in f=1kHz, B=1T is 40W/Kg, and other conditions are identical, with tradition
The core loss of iron core made from dipping lacquer curing is 45W/Kg, it is clear that the inventive method advantageously reduces the iron of stator core
Core loss.
Embodiment 2：
The method according to the invention, a kind of stacked amorphous motor stator core is prepared, is comprised the following steps：
D. it is the Fe that 75mm, thickness are about 0.03mm by width80Si9B11(at.%) iron-based amorphous alloy ribbon material cutting
It is 75mm square amorphous thin slice into length and width.
E., the amorphous thin slice is stacked into the column of 35mm height on fixture, using fixture to the column
Both ends provide axial compressive force, and the column and fixture are arranged in the vacuum paint dipping chamber with TA series spin coaters；
F. the axial compressive force that the fixture provides is adjusted, it is about 0.02mm to control the distance between described thin slice；
D. insulating epoxy glue dilution is injected into the vacuum paint dipping chamber, rotation is carried out using spin coater and gets rid of；It is described
Insulating epoxy glue dilution by insulating epoxy glue and acetone according to 1:5 weight ratio is formulated, the insulation
Epoxide-resin glue is epoxy resin, methylnadic anhydride and toughener according to 10:8:1 weight ratio mixes, its middle ring
The viscosity of oxygen tree fat is in 25000~30000mPas, and softening temperature is 25 DEG C, 0.41~0.44/100g of epoxide number；The rotation
The rotation of painting machine when getting rid of motor speed be 500r/min, revolve that to get rid of the time be 10min；
E. the axial compressive force that the fixture provides is increased；
F. d and e is repeated several times, until the resinous coat between the thin slice reaches 0.01mm；When repeating every time, dead ring
Oxygen tree fat gum concentration is about 0.6 times of previous concentration, and motor speed is about 1.6 times of previous rotating speed；
G. be heating and curing processing；4h is incubated after being warming up to 110 DEG C with 7 DEG C/min speed.
Using conventional cutting method, such as after spark cutting, plasma-torch cutting and laser cutting etc. are to above-mentioned solidification
Column cut, cut into high 40mm, internal diameter 30mm, external diameter 70mm annular core.Use Iwatsu SY8232B-
Core loss of the above-mentioned iron core that H analyzers measure in f=1kHz, B=1T is 38W/Kg, and other conditions are identical, with tradition
The core loss of iron core made from dipping lacquer curing is 44W/Kg, it is clear that the inventive method advantageously reduces the iron of stator core
Core loss.
Embodiment 3：
The method according to the invention, a kind of stacked amorphous motor stator core is prepared, is comprised the following steps：
G. it is the Fe that 90mm, thickness are about 0.03mm by width80Si9B11(at.%) iron-based amorphous alloy ribbon material cutting
It is 90mm square amorphous thin slice into length and width.
H., the amorphous thin slice is stacked into the column of 40mm height on fixture, using fixture to the column
Both ends provide axial compressive force, and the column and fixture are arranged in the vacuum paint dipping chamber with TA series spin coaters；
I. the axial compressive force that the fixture provides is adjusted, it is about 0.015mm to control the distance between described thin slice；
D. insulating epoxy glue dilution is injected into the vacuum paint dipping chamber, rotation is carried out using spin coater and gets rid of；It is described
Insulating epoxy glue dilution by insulating epoxy glue and acetone according to 1:3 weight ratio is formulated, the insulation
Epoxide-resin glue is epoxy resin, methylnadic anhydride and toughener according to 10:8:1 weight ratio mixes, its middle ring
The viscosity of oxygen tree fat is in 25000~30000mPas, and softening temperature is 25 DEG C, 0.41~0.44/100g of epoxide number；The rotation
The rotation of painting machine when getting rid of motor speed be 1400r/min, revolve that to get rid of the time be 10min；
E. the axial compressive force that the fixture provides is increased；
F. d and e is repeated several times, until the resinous coat between the thin slice reaches 0.01mm；When repeating every time, dead ring
Oxygen tree fat gum concentration is about 0.5 times of previous concentration, and motor speed is about 1.2 times of previous rotating speed；
G. be heating and curing processing；4h is incubated after being warming up to 100 DEG C with 10 DEG C/min speed.
Using conventional cutting method, such as after spark cutting, plasma-torch cutting and laser cutting etc. are to above-mentioned solidification
Column cut, cut into high 40mm, internal diameter 30mm, external diameter 70mm annular core.Use Iwatsu SY8232B-
Core loss of the above-mentioned iron core that H analyzers measure in f=1kHz, B=1T is 41W/Kg, and other conditions are identical, with tradition
The core loss of iron core made from dipping lacquer curing is 47W/Kg, it is clear that the inventive method advantageously reduces the iron of stator core
Core loss.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (8)
1. a kind of stacked amorphous motor stator core dipping lacquer curing, it is characterised in that comprise the following steps:
A. amorphous alloy strips are cut into multiple thin slices with same shape and thickness according to motor size；
B., the thin slice is stacked into the column of predetermined altitude on fixture, the fixture provides to the both ends of the column
Axial compressive force, the lower end of the fixture is fixedly connected with the electric machine rotational axis in spin coater vacuum paint dipping chamber, makes the column
Body and fixture are in the vacuum paint dipping chamber of the spin coater；
C. the axial compressive force is adjusted by fixture upper end pipe regulating screw nut to control the distance between described thin slice, institute
It is 0.01~0.03mm to state the starting spacing between thin slice；
D. insulating epoxy glue dilution is injected into the vacuum paint dipping chamber, rotation is carried out using spin coater and gets rid of；
E. the axial compressive force that the fixture provides is increased；
F. d and e is repeated several times, until the resinous coat between the thin slice reaches predetermined thickness, during repeat step d and e, step
Insulating epoxy gum concentration described in d gradually successively decreases, and the motor speed is gradually incremented by；
G. the processing that is heating and curing is carried out to the column.
A kind of 2. stacked amorphous motor stator core dipping lacquer curing according to claim 1, it is characterised in that step
The stacking direction of the thin slice in b is parallel with the vacuum pressure difference direction in the vacuum paint dipping chamber.
A kind of 3. stacked amorphous motor stator core dipping lacquer curing according to claim 1, it is characterised in that step
The electric machine rotational axis of the spin coater in b is parallel with the normal direction of the thin slice.
A kind of 4. stacked amorphous motor stator core dipping lacquer curing according to claim 1, it is characterised in that step
The lower end of the fixture in b is fixedly connected by bolt with the electric machine rotational axis of spin coater.
A kind of 5. stacked amorphous motor stator core dipping lacquer curing according to claim 1, it is characterised in that step
Insulating epoxy glue dilution described in d is by insulating epoxy glue and acetone according to 1:3~5 weight than preparing and
Into the insulating epoxy glue is epoxy resin, methylnadic anhydride and toughener according to 10:8:1 weight is than mixing
Forming, the viscosity of the epoxy resin is 20000~40000mPas, and softening temperature is 25 DEG C, epoxide number is 0.41~
0.44/100g。
6. a kind of stacked amorphous motor stator core dipping lacquer curing according to claim 1, it is characterised in that described
The injection direction of insulating epoxy glue is identical with the vacuum pressure difference direction in the vacuum paint dipping chamber.
7. a kind of stacked amorphous motor stator core dipping lacquer curing according to any one of claim 1 to 6, it is special
Sign is, motor speed be 200~2000r/min when the rotation of spin coater described in step d is got rid of, and revolves that to get rid of the time be 5~10min.
A kind of 8. stacked amorphous motor stator core dipping lacquer curing according to claim 7, it is characterised in that step
Be heating and curing described in rapid g processing specific requirement for insulation 2 after being warming up to 100~120 DEG C with 4~10 DEG C/min speed~
4h。
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106300709B (en) * | 2016-08-31 | 2018-09-14 | 常州市运控电子有限公司 | A kind of production technology for the stepper motor that can reduce electromagnetic noise |
| CN107394975A (en) * | 2017-09-01 | 2017-11-24 | 北京三电机系统有限责任公司 | A kind of lamination pressing ring laminating method and stack-press device |
| CN111463915A (en) * | 2019-01-22 | 2020-07-28 | 江西江特电机有限公司 | Insulating cured iron core and manufacturing method thereof |
| CN110815052A (en) * | 2019-11-04 | 2020-02-21 | 松山湖材料实验室 | Preparation method of iron-based amorphous alloy stator core based on water jet cutting and product thereof |
| CN111354563A (en) * | 2020-04-14 | 2020-06-30 | 全球能源互联网研究院有限公司 | Iron core for anode saturable reactor, preparation method and anode saturable reactor |
| CN112072868B (en) * | 2020-08-25 | 2022-03-29 | 上海和兰透平动力技术有限公司 | Method for manufacturing iron core lamination |
| CN113489254A (en) * | 2021-06-29 | 2021-10-08 | 陕西航天时代导航设备有限公司 | KH-225 glue gluing process for stator punching sheet, gluing process and tool for gluing process |
| CN113916929B (en) * | 2021-09-17 | 2023-04-07 | 东方电气集团东方电机有限公司 | Method for evaluating main insulation curing degree of generator stator bar |
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| US4173593A (en) * | 1977-04-05 | 1979-11-06 | Westinghouse Electric Corp. | Metal acetylacetonate latent accelerators for an epoxy-styrene resin system |
| CN102399349B (en) * | 2010-09-07 | 2013-09-11 | 上海电气集团上海电机厂有限公司 | Preparation method of vacuum pressure impregnation resin |
| CN102332760A (en) * | 2011-09-09 | 2012-01-25 | 山东大学威海分校 | Stator core and processing method thereof |
| CN102969847B (en) * | 2012-11-19 | 2015-08-26 | 苏州汇川技术有限公司 | Servo motor stator glue-pouring device and technique |
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