CN102945695B - Circular winding wire for new energy electric automobile motor and manufacturing method thereof - Google Patents
Circular winding wire for new energy electric automobile motor and manufacturing method thereof Download PDFInfo
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- CN102945695B CN102945695B CN201210380059.9A CN201210380059A CN102945695B CN 102945695 B CN102945695 B CN 102945695B CN 201210380059 A CN201210380059 A CN 201210380059A CN 102945695 B CN102945695 B CN 102945695B
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Abstract
The invention discloses a circular winding wire for a new energy electric automobile motor and a manufacturing method thereof; an adhesive glue layer is arranged on the external surface of a core wire; a corona-resistant insulating layer is arranged on the external surface of the adhesive glue layer; and an insulating layer capable of enhancing heat performance and chemical resistance is arranged on the external surface of the corona-resistant insulating layer. The manufacturing method comprises the following procedures of coarse wire drawing, semi-finished product annealing, fine wire drawing, finished product annealing, cooling, washing, painting, baking, lubricating and winding. Through the adoption of the method disclosed by the invention, a plurality of insulating layers with different performances are formed on the external surface layer of a copper core through repeated painting and baking, so that a corona-resistant enameled wire with a composite insulating layer is formed; and the corona-resistant enameled wire obtains very good adhesion property and corona resistance; and requirements on corona resistance and temperature resistant grade of a variable frequency motor can be satisfied.
Description
Technical field
The invention discloses a kind of new energy electric automobile motor circle winding wire, the invention also discloses the manufacture method of a kind of new energy electric automobile motor circle winding wire.
Background technology
Because regular fuel motor vehicle exhaust emission causes environmental problem, for this reason, developing new-energy automobile is reduce automotive fuel wastage, alleviate fuel oil disparities between supply and demand, reduce exhaust emissions, improve atmospheric environment, promote the Important Action of automobile industry technological progress and optimization and upgrading.
As the one of new-energy automobile, the composition of electric automobile comprises: electric-pneumatic and the mechanical system such as control system, actuating force transmission, complete the equipment etc. of assigned tasks.Driven by power and control system are the cores of electric automobile, and be also the maximum difference being different from internal-combustion engines vehicle, driven by power and control system are made up of the speed-regulating control device etc. of drive motor, power supply and motor.Drive motors for electric automobile requires to start frequently/stop usually, acceleration/deceleration, requires high torque (HT), require low torque, and require that slewing range is large when running at high speed when low speed or climbing.They have different requirement with conventional industrial motor:
1, driving motor for electric automobile needs the overload of 4 ~ 5 times to meet the requirement accelerated in short-term or climb; And industrial motor only requires that the overload of 2 times is just passable.
2, the maximum speed of electric automobile requires 4 ~ 5 times that reach base speed when cruising on highway, and industrial motor only needs to reach 2 times that invariable power is base speed.
3, driving motor for electric automobile needs the driving habits design according to vehicle and driver, and industrial motor only need according to typical design of operating modes.
4, driving motor for electric automobile requires the efficiency chart (having higher efficiency in the wider range of speeds and torque range) that height power density (General Requirements reach 1kg/kw within) is become reconciled, thus can reduce car weight, extending driving range; And industrial motor considers power density, efficiency and cost usually, near rated operation point, efficiency is optimized.
5, driving motor for electric automobile requirement work controllability is high, stable state accuracy is high, dynamic property good; And industrial motor only has a certain specific performance requirement.
6, driving motor for electric automobile is installed on motor vehicle, and space is little, under being operated in high temperature, bad weather and frequent vibration etc. adverse circumstances.And industrial motor works in some fixed positions usually.
Because driving motor for electric automobile has special requirement in load request, technical performance and operational environment etc., therefore, very high request be it is also proposed to the Inverter fed motor enamelled wire for this drive motors, especially improving the pliability of enamelled wire, corona-resistance property and temperature resistant grade, is the main path extending variable-frequency motor useful life.It is easily aging that common magnet wire insulation paint film is subject to pulse surge, make variable-frequency motor in use turn-to-turn be easy to puncture, shorten useful life of enamelled wire, reduce the useful life of motor.
Summary of the invention
An object of the present invention overcomes the deficiencies in the prior art, provides the new energy electric automobile motor circle that a kind of pliability is good, corona-resistance property is outstanding and temperature resistant grade is high winding wire.
Another object of the present invention is to provide the manufacture method of a kind of new energy electric automobile motor circle winding wire.
According to technical scheme provided by the invention, described new energy electric automobile motor circle winding wire, the outer surface of heart yearn is provided with glue line, the outer surface of glue line is provided with corona-resistant insulation layer, the outer surface of corona-resistant insulation layer is provided with the insulating barrier that can improve hot property and chemical-resistance; The shape of cross section of described heart yearn is circular, and the shape of cross section of glue line is annular, and the shape of cross section of corona-resistant insulation layer is annular, and the shape of cross section of corona-resistant insulation layer is annular.
The diameter of described heart yearn is 0.9 ~ 1.5mm.
The thickness of described glue line is 0.010 ~ 0.015mm.
The thickness of described corona-resistant insulation layer is 0.04 ~ 0.06mm.
The thickness of the insulating barrier of described raising hot property and chemical-resistance is 0.02 ~ 0.03mm.
The manufacture method of above-mentioned new energy electric automobile motor circle winding wire comprises the steps:
A, rough silk: semi-finished product bare wire oxygen-free copper bar being pulled on wire drawing machine required diameter;
B, semi-finished product are annealed: by semi-finished product bare wire by electric anneal, inert gas environment is controlled in electricity annealing furnace, at the uniform velocity heat up and within 1.5 ~ 2.5 hours, make the temperature in electric annealing furnace rise to the annealing temperature of 300 ~ 400 DEG C, be incubated 4 ~ 6 hours at an annealing temperature, after insulation, at the uniform velocity lower the temperature and within 1.5 ~ 2.5 hours, make the temperature in electric annealing furnace be down to 35 ~ 45 DEG C;
C, finish draw silk: the semi-finished product bare wire after annealing is placed in the Constant-tension pay-off rack of the enamel-cover circle line machine that Lian Lalian is coated with, by the online wire drawing of the brilliant mould of height to the finished product bare wire requiring specification;
D, finished products: finished product bare wire is carried out finished products by the speed order of 25 ~ 35 ms/min by the annealing pipe upper strata of annealing furnace and annealing pipe lower floor, and annealing pipe top level control is 550 ~ 600 DEG C in temperature, and annealing pipe lower floor temperature controls at 520 ~ 550 DEG C;
E, cooling cleaning: the finished product bare wire through finished products operation is passed into bosh and carry out cooling cleaning, it is the deionized water of temperature 80 ~ 90 DEG C in bosh, dry up finished product bare wire with blower fan after cooling cleaning, make the temperature of finished product bare wire control at 35 ~ 50 DEG C;
F, japanning: the surface of the finished product bare wire through supercooling matting is coated with last layer glue line, 8 ~ 9 road polyester-imide Inverter fed motor paints are applied again as corona-resistant insulation layer on the surface of glue line, then at surface-coated 1 ~ 3 road polyamidoimide paint of corona-resistant insulation layer as the insulating barrier improving hot property and chemical-resistance, obtain semi-finished product enamelled wire;
G, to cure: the speed order of semi-finished product enamelled wire by 25 ~ 35 ms/min is cured by enameling furnace lower floor and enameling furnace upper strata, the inlet temperature of enameling furnace controls at 195 ~ 205 DEG C, lower floor's temperature of enameling furnace controls at 275 ~ 285 DEG C, before a catalysis of enameling furnace, temperature controls at 355 ~ 365 DEG C, after the catalysis of enameling furnace, supplementary heating temperature controls at 445 ~ 455 DEG C, the major cycle rotation speed of fan of enameling furnace controls at 1560r/min, the waste discharge rotation speed of fan of enameling furnace controls at 700r/min, and the lower fire door rotation speed of fan of enameling furnace controls at 1300r/min;
H, lubrication: by the semi-finished product enamelled wire surface coating winding displacement oil through curing operation, obtain finished product enamelled wire;
I, take-up: by finished product enamelled wire around on take-up reel.
Method of the present invention by japanning repeatedly, cure the insulating barrier forming multilayer different performance at copper core extexine, thus form a kind of Inverter fed motor enamelled wire with composite insulation layer, this Inverter fed motor enamelled wire has good tack and corona-resistance property, can meet variable-frequency motor corona-resistance property and temperature resistant grade requirement.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with concrete drawings and Examples, the invention will be further described.
Embodiment 1
The manufacture method of new energy electric automobile motor circle winding wire comprises the steps:
A, rough silk: oxygen-free copper bar is pulled on wire drawing machine the semi-finished product bare wire that diameter is 2.000cm;
B, semi-finished product are annealed: by semi-finished product bare wire by electric anneal, inert gas environment is controlled in electricity annealing furnace, at the uniform velocity heat up and within 1.5 ~ 2.5 hours, make the temperature in electric annealing furnace rise to the annealing temperature of 300 ~ 400 DEG C, be incubated 4 ~ 6 hours at an annealing temperature, after insulation, at the uniform velocity lower the temperature and within 1.5 ~ 2.5 hours, make the temperature in electric annealing furnace be down to 35 ~ 45 DEG C;
C, finish draw silk: being placed in by the semi-finished product bare wire after annealing in the Constant-tension pay-off rack of the enamel-cover circle line machine that Lian Lalian is coated with, is the finished product bare wire of 1.120cm to diameter by the online wire drawing of the brilliant mould of height;
D, finished products: finished product bare wire is carried out finished products by the speed order of 25 ~ 35 ms/min by the annealing pipe upper strata of annealing furnace and annealing pipe lower floor, and annealing pipe top level control is 550 ~ 600 DEG C in temperature, and annealing pipe lower floor temperature controls at 520 ~ 550 DEG C;
E, cooling cleaning: the finished product bare wire through finished products operation is passed into bosh and carry out cooling cleaning, it is the deionized water of temperature 80 ~ 90 DEG C in bosh, dry up finished product bare wire with blower fan after cooling cleaning, make the temperature of finished product bare wire control at 35 ~ 50 DEG C;
F, japanning: the surface of the finished product bare wire through supercooling matting is coated with last layer glue line, 8 ~ 9 road polyester-imide Inverter fed motor paints are applied again as corona-resistant insulation layer on the surface of glue line, then at surface-coated 1 ~ 3 road polyamidoimide paint of corona-resistant insulation layer as the insulating barrier improving hot property and chemical-resistance, obtain semi-finished product enamelled wire;
G, to cure: the speed order of semi-finished product enamelled wire by 25 ~ 35 ms/min is cured by enameling furnace lower floor and enameling furnace upper strata, the inlet temperature of enameling furnace controls at 195 ~ 205 DEG C, lower floor's temperature of enameling furnace controls at 275 ~ 285 DEG C, before a catalysis of enameling furnace, temperature controls at 355 ~ 365 DEG C, after the catalysis of enameling furnace, supplementary heating temperature controls at 445 ~ 455 DEG C, the major cycle rotation speed of fan of enameling furnace controls at 1560r/min, the waste discharge rotation speed of fan of enameling furnace controls at 700r/min, and the lower fire door rotation speed of fan of enameling furnace controls at 1300r/min;
H, lubrication: by the semi-finished product enamelled wire surface coating winding displacement oil through curing operation, obtain finished product enamelled wire;
I, take-up: by finished product enamelled wire around on take-up reel.
The performance data of the finished product enamelled wire that embodiment 1 obtains is in table 1.
Embodiment 2
The manufacture method of new energy electric automobile motor circular cross-section winding wire comprises the steps:
A, rough silk: oxygen-free copper bar is pulled on wire drawing machine the semi-finished product bare wire that diameter is 1.900cm;
B, semi-finished product are annealed: by semi-finished product bare wire by electric anneal, inert gas environment is controlled in electricity annealing furnace, at the uniform velocity heat up and within 1.5 ~ 2.5 hours, make the temperature in electric annealing furnace rise to the annealing temperature of 300 ~ 400 DEG C, be incubated 4 ~ 6 hours at an annealing temperature, after insulation, at the uniform velocity lower the temperature and within 1.5 ~ 2.5 hours, make the temperature in electric annealing furnace be down to 35 ~ 45 DEG C;
C, finish draw silk: being placed in by the semi-finished product bare wire after annealing in the Constant-tension pay-off rack of the enamel-cover circle line machine that Lian Lalian is coated with, is the finished product bare wire of 0.800cm to diameter by the online wire drawing of the brilliant mould of height;
D, finished products: finished product bare wire is carried out finished products by the speed order of 25 ~ 35 ms/min by the annealing pipe upper strata of annealing furnace and annealing pipe lower floor, and annealing pipe top level control is 550 ~ 600 DEG C in temperature, and annealing pipe lower floor temperature controls at 520 ~ 550 DEG C;
E, cooling cleaning: the finished product bare wire through finished products operation is passed into bosh and carry out cooling cleaning, it is the deionized water of temperature 80 ~ 90 DEG C in bosh, dry up finished product bare wire with blower fan after cooling cleaning, make the temperature of finished product bare wire control at 35 ~ 50 DEG C;
F, japanning: the surface of the finished product bare wire through supercooling matting is coated with last layer glue line, 8 ~ 9 road polyester-imide Inverter fed motor paints are applied again as corona-resistant insulation layer on the surface of glue line, then at surface-coated 1 ~ 3 road polyamidoimide paint of corona-resistant insulation layer as the insulating barrier improving hot property and chemical-resistance, obtain semi-finished product enamelled wire;
G, to cure: the speed order of semi-finished product enamelled wire by 25 ~ 35 ms/min is cured by enameling furnace lower floor and enameling furnace upper strata, the inlet temperature of enameling furnace controls at 195 ~ 205 DEG C, lower floor's temperature of enameling furnace controls at 275 ~ 285 DEG C, before a catalysis of enameling furnace, temperature controls at 355 ~ 365 DEG C, after the catalysis of enameling furnace, supplementary heating temperature controls at 445 ~ 455 DEG C, the major cycle rotation speed of fan of enameling furnace controls at 1560r/min, the waste discharge rotation speed of fan of enameling furnace controls at 700r/min, and the lower fire door rotation speed of fan of enameling furnace controls at 1300r/min;
H, lubrication: by the semi-finished product enamelled wire surface coating winding displacement oil through curing operation, obtain finished product enamelled wire;
I, take-up: by finished product enamelled wire around on take-up reel.
The performance data of the finished product enamelled wire that embodiment 2 obtains is in table 1.
Embodiment 3
The manufacture method of new energy electric automobile motor circular cross-section winding wire comprises the steps:
A, rough silk: oxygen-free copper bar is pulled on wire drawing machine the semi-finished product bare wire that diameter is 1.900cm;
B, semi-finished product are annealed: by semi-finished product bare wire by electric anneal, inert gas environment is controlled in electricity annealing furnace, at the uniform velocity heat up and within 1.5 ~ 2.5 hours, make the temperature in electric annealing furnace rise to the annealing temperature of 300 ~ 400 DEG C, be incubated 4 ~ 6 hours at an annealing temperature, after insulation, at the uniform velocity lower the temperature and within 1.5 ~ 2.5 hours, make the temperature in electric annealing furnace be down to 35 ~ 45 DEG C;
C, finish draw silk: being placed in by the semi-finished product bare wire after annealing in the Constant-tension pay-off rack of the enamel-cover circle line machine that Lian Lalian is coated with, is the finished product bare wire of 0.8500cm to diameter by the online wire drawing of the brilliant mould of height;
D, finished products: finished product bare wire is carried out finished products by the speed order of 25 ~ 35 ms/min by the annealing pipe upper strata of annealing furnace and annealing pipe lower floor, and annealing pipe top level control is 550 ~ 600 DEG C in temperature, and annealing pipe lower floor temperature controls at 520 ~ 550 DEG C;
E, cooling cleaning: the finished product bare wire through finished products operation is passed into bosh and carry out cooling cleaning, it is the deionized water of temperature 80 ~ 90 DEG C in bosh, dry up finished product bare wire with blower fan after cooling cleaning, make the temperature of finished product bare wire control at 35 ~ 50 DEG C;
F, japanning: the surface of the finished product bare wire through supercooling matting is coated with last layer glue line, 8 ~ 9 road polyester-imide Inverter fed motor paints are applied again as corona-resistant insulation layer on the surface of glue line, then at surface-coated 1 ~ 3 road polyamidoimide paint of corona-resistant insulation layer as the insulating barrier improving hot property and chemical-resistance, obtain semi-finished product enamelled wire;
G, to cure: the speed order of semi-finished product enamelled wire by 25 ~ 35 ms/min is cured by enameling furnace lower floor and enameling furnace upper strata, the inlet temperature of enameling furnace controls at 195 ~ 205 DEG C, lower floor's temperature of enameling furnace controls at 275 ~ 285 DEG C, before a catalysis of enameling furnace, temperature controls at 355 ~ 365 DEG C, after the catalysis of enameling furnace, supplementary heating temperature controls at 445 ~ 455 DEG C, the major cycle rotation speed of fan of enameling furnace controls at 1560r/min, the waste discharge rotation speed of fan of enameling furnace controls at 700r/min, and the lower fire door rotation speed of fan of enameling furnace controls at 1300r/min;
H, lubrication: by the semi-finished product enamelled wire surface coating winding displacement oil through curing operation, obtain finished product enamelled wire;
I, take-up: by finished product enamelled wire around on take-up reel.
The performance data of the finished product enamelled wire that embodiment 3 obtains is in table 1.
Table 1
Claims (1)
1. a new energy electric automobile motor manufacture method for circle winding wire, is characterized in that: comprise the steps:
A, rough silk: semi-finished product bare wire oxygen-free copper bar being pulled on wire drawing machine required diameter;
B, semi-finished product are annealed: by semi-finished product bare wire by electric anneal, inert gas environment is controlled in electricity annealing furnace, at the uniform velocity heat up and within 1.5 ~ 2.5 hours, make the temperature in electric annealing furnace rise to the annealing temperature of 300 ~ 400 DEG C, be incubated 4 ~ 6 hours at an annealing temperature, after insulation, at the uniform velocity lower the temperature and within 1.5 ~ 2.5 hours, make the temperature in electric annealing furnace be down to 35 ~ 45 DEG C;
C, finish draw silk: the semi-finished product bare wire after annealing is placed in the Constant-tension pay-off rack of the enamel-cover circle line machine that Lian Lalian is coated with, by the online wire drawing of the brilliant mould of height to the finished product bare wire requiring specification;
D, finished products: finished product bare wire is carried out finished products by the speed order of 25 ~ 35 ms/min by the annealing pipe upper strata of annealing furnace and annealing pipe lower floor, and annealing pipe top level control is 550 ~ 600 DEG C in temperature, and annealing pipe lower floor temperature controls at 520 ~ 550 DEG C;
E, cooling cleaning: the finished product bare wire through finished products operation is passed into bosh and carry out cooling cleaning, it is the deionized water of temperature 80 ~ 90 DEG C in bosh, dry up finished product bare wire with blower fan after cooling cleaning, make the temperature of finished product bare wire control at 35 ~ 50 DEG C;
F, japanning: the surface of the finished product bare wire through supercooling matting is coated with last layer glue line, 8 ~ 9 road polyester-imide Inverter fed motor paints are applied again as corona-resistant insulation layer on the surface of glue line, then at surface-coated 1 ~ 3 road polyamidoimide paint of corona-resistant insulation layer as the insulating barrier improving hot property and chemical-resistance, obtain semi-finished product enamelled wire;
G, to cure: the speed order of semi-finished product enamelled wire by 25 ~ 35 ms/min is cured by enameling furnace lower floor and enameling furnace upper strata, the inlet temperature of enameling furnace controls at 195 ~ 205 DEG C, lower floor's temperature of enameling furnace controls at 275 ~ 285 DEG C, before a catalysis of enameling furnace, temperature controls at 355 ~ 365 DEG C, after the catalysis of enameling furnace, supplementary heating temperature controls at 445 ~ 455 DEG C, the major cycle rotation speed of fan of enameling furnace controls at 1560r/min, the waste discharge rotation speed of fan of enameling furnace controls at 700r/min, and the lower fire door rotation speed of fan of enameling furnace controls at 1300r/min;
H, lubrication: by the semi-finished product enamelled wire surface coating winding displacement oil through curing operation, obtain finished product enamelled wire;
I, take-up: by finished product enamelled wire around on take-up reel;
In described (f) step, the thickness of glue line (3) is 0.010 ~ 0.015mm; In described (f) step, the thickness of corona-resistant insulation layer (2) is 0.04 ~ 0.06mm; The thickness improving the insulating barrier (1) of hot property and chemical-resistance in described (f) step is 0.02 ~ 0.03mm.
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| CN102945695B true CN102945695B (en) | 2015-04-29 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104167244A (en) * | 2014-05-27 | 2014-11-26 | 浙江长城电工科技股份有限公司 | Anti-corona special enameled wire for wind power generation and production method |
| CN103985442A (en) * | 2014-05-27 | 2014-08-13 | 浙江长城电工科技股份有限公司 | 200-level impulse-voltage-resistant composite enameled wire and production method |
| CN106128575A (en) * | 2016-07-29 | 2016-11-16 | 先登高科电气有限公司 | High adhesion force enamel-covered wire and production method |
| CN107359018A (en) * | 2017-08-14 | 2017-11-17 | 浙江昌泰电力电缆有限公司 | A kind of medium-pressure power cable and its production method |
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| CN201438386U (en) * | 2009-05-22 | 2010-04-14 | 东莞宇隆电工材料有限公司 | Enamelled wire with polyester coating priming coat film |
| CN101958158A (en) * | 2010-10-22 | 2011-01-26 | 株洲时代电气绝缘有限责任公司 | Method for preparing corona-resistant enameled wire and product |
| CN201975104U (en) * | 2010-12-28 | 2011-09-14 | 江苏亚洛科技有限公司 | Enameled round aluminum wire |
| CN202917199U (en) * | 2012-10-09 | 2013-05-01 | 无锡统力电工有限公司 | Round winding wire for new-energy electromobile |
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| CN201438386U (en) * | 2009-05-22 | 2010-04-14 | 东莞宇隆电工材料有限公司 | Enamelled wire with polyester coating priming coat film |
| CN101958158A (en) * | 2010-10-22 | 2011-01-26 | 株洲时代电气绝缘有限责任公司 | Method for preparing corona-resistant enameled wire and product |
| CN201975104U (en) * | 2010-12-28 | 2011-09-14 | 江苏亚洛科技有限公司 | Enameled round aluminum wire |
| CN202917199U (en) * | 2012-10-09 | 2013-05-01 | 无锡统力电工有限公司 | Round winding wire for new-energy electromobile |
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