CN201054519Y - Dual-intensity, zero-gas clearance and electric faint resisting insulation system for no gear permanent magnetic traction machine electromotor - Google Patents
Dual-intensity, zero-gas clearance and electric faint resisting insulation system for no gear permanent magnetic traction machine electromotor Download PDFInfo
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- CN201054519Y CN201054519Y CNU2007200382957U CN200720038295U CN201054519Y CN 201054519 Y CN201054519 Y CN 201054519Y CN U2007200382957 U CNU2007200382957 U CN U2007200382957U CN 200720038295 U CN200720038295 U CN 200720038295U CN 201054519 Y CN201054519 Y CN 201054519Y
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Abstract
The utility model relates to a double-strength, null-air gap, corona-proof insulation system for the gearless permanent magnetism drawing motor, in particular to a double-strength, null-air gap, corona-proof insulation system and an insulation method for the rare earth permanent magnetism synchronous drawing motor which is gearless, low in rotation speed and high in torque. The utility model is applicable for the rare earth permanent magnetism synchronous motor of which low-speed torque is caused by the AC requency conversion and the frequent braking. The insulation system includes an electromagnetic wire, a major insulation, a phase insulation, a coil terminal insulation, an insulating sleeve insulation, an electromagnetic wire insulation, a leading-out wire insulation, a slot wedge, an out-leading wire plate and a dip varnish. The major insulation includes groove insulation, terminal pad insulation and internal groove valve insulation, wherein, the terminal pad insulation, the internal groove valve insulation and the phase insulation adopt a polyester film PAR fiber paper. The electromagnetic wire of the rotor coil of the motor adopts a corona-proof enamel covered cooper wire. The iron core of the winding rotor is dipped, and the dip varnish adopts the solvent-free immersion paint which takes the epoxy resin and the unsaturated resin as the lacquer base, with the utilization of vacuum immersion.
Description
Technical field
What the utility model gearless permanent-magnet traction machine motor dual intensity, zero-air-gap, corona-resistant insulation system related to is a kind of gearless, the slow-speed of revolution, the synchronous hoisting motor dual intensity of high torque (HT) rare earth permanent magnet, zero-air-gap, corona-resistant insulation system and insulating method thereof, is applicable to AC frequency conversion power supply and the frequent rare-earth permanent-magnet synchronous motor that plays the slow-speed of revolution torque of braking.
Background technology:
At present, gearless permanent-magnet traction machine motor insulation system is only noticed electric strength, has ignored mechanical strength, and the motor winding is full of air gap, has caused pulsed discharge, electrion, and motor is often burnt out.Frequent rising braked, electromagnetism floats the power of shaking and vibrates the repeat pressure that causes, cause motor to quicken to change, very big at frequency conversion rate scope built-in motor noise, having influenced the elevator comfort level. the control of conversion power supply is long to the tie cable length of motor terminals in addition, be easy to generate partial discharge, around having lacked motor useful life.Problems cause elevator traction motor reliability decrease.
Summary of the invention
The purpose of this utility model is to provide a kind of gearless permanent-magnet traction machine dual intensity, zero-air-gap, corona-resistant insulation system at above-mentioned weak point, for this significant problem of elevator traction motor reliability decrease, study the damage mechanism of the various materials of seeking insulation from the mechanism of damaging, formulate novel insulation system and insulating process then, address the above problem to practice from mechanism, thereby realized that the gearless permanent-magnet traction machine reaches the purpose of mechanical strength height, electric strength height, zero-air-gap, anti-corona.
Gearless permanent-magnet hoisting motor dual intensity, zero-air-gap, the corona-resistant insulation system takes following scheme to realize:
Gearless permanent-magnet hoisting motor dual intensity, zero-air-gap, the corona-resistant insulation system comprises electromagnetic wire, main insulation, insulation mutually, end winding insulation, insulating sleeve insulation, electromagnetic wire insulation, lead-out wire insulation, slot wedge, outlet board, impregnating varnish.
Main insulation comprises interlayer insulation in slot liner, overhang packing insulation, the groove, slot liner adopts polyester film aramid fiber paper, for two layers of liner of composite flexible material (extrusion coating paper) NMN 0.25mm at the motor stator core slot part, solve the insulation against ground of stator winding.
Polyester film aramid fiber paper is adopted in the overhang packing insulation, be composite flexible material (extrusion coating paper) NMN 0.3mm one deck, liner is in the end of electric machine iron core groove, and is strong with mechanical insulated lining, prevent coil under the effect of motor, coil is cut bad by the motor stator core notch.
Polyester film aramid fiber paper is adopted in the interlayer insulation in the groove, for composite flexible material (extrusion coating paper) NMN 0.35mm one deck liner at motor stator core at the middle and upper levels between winding and the lower floor's winding, because upper and lower layer winding adheres to different phases separately, produces potential difference, also needs insulation.
Polyester film aramid fiber paper is adopted in insulation mutually, for one to two layer of liner of composite flexible material (411 maos of paper) N411-M-N411 0.25mm at stator winding between phase and phase, when electrical machine insulation floods, hair paper absorbs the electrical machine insulation lacquer to enter, to strengthen stator winding mechanical strength between phase and phase.
End winding insulation, winding roll off the production line finish after, the stator winding coil that each stator core slot is stretched out carries out colligation, adopts insulating adhesive tape and glass fiber winding tapes to carry out colligation.
The insulating sleeve insulation, adopt the silicon rubber glass fiber insulating sleeve to be sleeved on each phase lead-out wire at each lead-out wire of stator winding coil, because silicon rubber has good electrical strength and performance, but mechanical strength is relatively poor, at rubber combined last layer glass fibre with mechanical reinforcement.
The electromagnetic wire insulation: the electromagnetic wire that coil of stator of motor uses adopts the enamel covered wire of anti-the corona, and wire enamel requires to have 35% match gram group (" THECK " group), and electromagnetic wire adopts complex polyester imines acid imide two-layer compound line, has anticorona power.
Lead-out wire adopts rubber-covered motor lead-out wire, has the function that anti-dipping does not chap.
Slot wedge is contained in the stator core slot upper notch, with 15mm3240 ring chlorophenol aldehyde glass cloth laminated board, after the processing, needs preimpregnation insulating varnish once.
Outlet board, the outlet board that is contained in the motor cabinet outlet box adopts polyester fiber to strengthen the poly-resin-molded plastic plate of thermosetting.
Impregnating varnish: the stator core impregnation process that has winding, it is the solvent-free immersion paint of lacquer base that impregnating varnish adopts with cyclochloride resin and insatiable hunger resin, its curing rate is fast, volatile quantity is less than 5% in the solidification process, and adopt vacuum impregnation, rotary roasting to solidify impregnation technology, basically can become zero-air-gap insulation, through test with put into practice engineering application note impregnating varnish and wire enamel has good compatibility.
Gearless permanent-magnet traction machine motor dual intensity, zero-air-gap, corona-resistant insulation system characteristics:
1, the stator core impregnation process that has winding of the present utility model, owing to adopt vacuum paint dipping, rotation baking process of smelting, vacuum impregnation energy right to use impregnating resin fully permeates and puts in place, fill up the air-gap in the electrical machine insulation, hanging the lacquer amount increases, rotation baking blowization can prevent that then impregnating varnish runs off in a large number by temperature-sticking curve law, and has realized dipping again.Can guarantee like this to form " no air-gap insulation ".No air-gap-insulated obtains to seem very important, is beneficial to heat radiation (heat loss through conduction) on the one hand, has also stopped the air gap on the other hand and has produced ionization, and high voltage (sometimes up to 3Kv) punctures insulation.Also greatly improve mechanism's intensity of insulation system simultaneously, resisted sharp power and resonance that variable-frequency motor produces, reduced the noise in the operating frequency range.
2, very strong electric strength is arranged: openpore circle examination 3600V
Withstand voltage over the ground 2760V/ minute
Can resist high-frequency impulse 1.6Kv
3, very strong mechanical strength is arranged, can resist the electro-magnetic exciting force that high-frequency impulse forms.
4, can under moist (95% humidity has condensation), salt fog, mould condition, work
5, the ac variable frequency speed regulation rare earth permanent magnet synchronous hoisting motor of this power below 300KW:
A. thermal endurance class: H level and 200 ℃ of levels
To wire enamel, the special requirement of THECK group＞35%.
B. lacquer is touched continuity (pinhole test)
Requirement is: 3.5KV 35m " O " pin hole.
6, ability corona.Low voltage motor has been proposed the specific (special) requirements of the anti-corona of high-voltage motor requirement:
Initial corona voltage 660V
Anti-pulse voltage performance its life-span under following test condition is 〉=60 hours
Test condition:
Pulse frequency 20KhHz
Pulse rise time 50ns
Pulse spacing 0.08-0.25s
The impulse waveform square wave
Pulse polarity is bipolar
Voltage 3000V
90 ℃ of temperature
Anti-pulse index: life of product/unidimensional and isostructural MW-35 〉=60
Description of drawings
The utility model is described in further detail below with reference to accompanying drawing.
Fig. 1 is gearless permanent-magnet traction machine motor dual intensity, zero-air-gap, corona-resistant insulation system partial structurtes schematic diagram.
Embodiment
With reference to accompanying drawing 1, gearless permanent-magnet hoisting motor dual intensity, zero-air-gap, the corona-resistant insulation system comprises main insulation, insulation mutually, end winding insulation, insulating sleeve insulation, electromagnetic wire insulation, lead-out wire insulation, slot wedge, outlet board, impregnating varnish.
Main insulation comprises interlayer insulation 5 in slot liner 1, overhang packing insulation 2, the groove, slot liner 1 adopts polyester film aramid fiber paper, for two layers of liner of composite flexible material paper thickness 0.25mm (NMN0.25mm) at motor stator core 7 slot parts, solve the insulation against ground of stator winding.
Polyester film aramid fiber paper is adopted in overhang packing insulation 2, be composite flexible material paper thickness 0.3mm (NMN 0.3mm) one deck, liner is in the end of electric machine iron core groove, and is strong with mechanical insulated lining, prevent coil under the effect of motor, coil is cut bad by the motor stator core notch.
Polyester film aramid fiber paper is adopted in interlayer insulation 5 in the groove, for composite flexible material paper thickness 0.35mm (NMN 0.35mm) one deck liner at motor stator core at the middle and upper levels between winding and the lower floor's winding, because upper and lower layer winding adheres to different phases separately, produces potential difference, also needs insulation.
6 employing polyester film aramid fiber paper mutually insulate, for one to two layer of liner of composite flexible material hair paper thickness 0.25mm (411 maos of paper) N411-M-N411 0.25mm at stator winding between phase and phase, when electrical machine insulation floods, hair paper absorbs the electrical machine insulation lacquer to enter, to strengthen stator winding mechanical strength between phase and phase.
End winding insulation 4, winding roll off the production line finish after, the stator winding coil that each stator core slot is stretched out carries out colligation, adopts insulating adhesive tape and glass fiber winding tapes 10, colligation.
Insulating sleeve insulation 8, adopt the silicon rubber glass fiber insulating sleeve to be sleeved on each phase lead-out wire at each lead-out wire of stator winding coil, because silicon rubber has good electrical strength and performance, but mechanical strength is relatively poor, at rubber combined last layer glass fibre with mechanical reinforcement.
Electromagnetic wire insulation 3: the electromagnetic wire that coil of stator of motor uses adopts the enamel covered wire of anti-the corona, and wire enamel requires to have 35% match gram group (" THECK " group), and electromagnetic wire adopts complex polyester imines acid imide two-layer compound line, has anticorona power.
Lead-out wire 11 adopts rubber-covered motor lead-out wire, has the function that anti-dipping does not chap.
Slot wedge 9 is contained in the stator core slot upper notch, with 15mm3240 ring chlorophenol aldehyde glass cloth laminated board, after the processing, needs preimpregnation insulating varnish once.
Outlet board, the outlet board in the dress motor cabinet outlet box adopt polyester fiber to strengthen the poly-resin-molded plastic plate of thermosetting.
Impregnating varnish: have the stator core impregnation process of winding, it is the solvent-free immersion paint of lacquer base that impregnating varnish adopts with cyclochloride resin and insatiable hunger resin.Its curing rate is fast, and volatile quantity adopts vacuum impregnation, rotary roasting to solidify impregnation technology less than 5% in the solidification process, can become the zero-air-gap insulation basically, through test with put into practice engineering application note impregnating varnish and wire enamel has good compatibility.
Claims (6)
1. gearless permanent-magnet hoisting motor dual intensity, zero-air-gap, the corona-resistant insulation system is characterized in that system comprises electromagnetic wire, main insulation, insulation mutually, end winding insulation, insulating sleeve insulation, electromagnetic wire insulation, lead-out wire insulation, slot wedge, outlet board, impregnating varnish;
Main insulation comprises interlayer insulation in slot liner, overhang packing insulation, the groove, and slot liner adopts two layers of liner of polyester film aramid fiber paper at the motor stator core slot part, solves the insulation against ground of stator winding;
Polyester film aramid fiber paper one deck is adopted in the overhang packing insulation, and liner is in the end of electric machine iron core groove;
The interlayer insulation adopts polyester film aramid fiber paper one deck liner at motor stator core at the middle and upper levels between winding and the lower floor's winding in the groove;
Insulation is adopted one to two layer of liner of polyester film aramid fiber paper hair paper at stator winding between phase and phase mutually;
End winding insulation, winding roll off the production line finish after, the stator winding coil that each stator core slot is stretched out adopts insulating adhesive tape and glass fiber winding tapes colligation;
Insulating sleeve insulation adopts silicon rubber glass fiber insulating sleeve to be sleeved on each phase lead-out wire at each lead-out wire of stator winding coil, at rubber combined last layer glass fibre with mechanical reinforcement;
The electromagnetic wire insulation, the electromagnetic wire that coil of stator of motor uses adopts the enamel covered wire of anti-the corona; Lead-out wire adopts rubber-covered motor lead-out wire;
Slot wedge is contained in the stator core slot upper notch, adopts ring chlorophenol aldehyde glass cloth laminated board, after the processing, and preimpregnation insulating varnish;
Outlet board, the outlet board that is contained in the motor cabinet outlet box adopts polyester fiber to strengthen the poly-resin-molded plastic plate of thermosetting;
Impregnating varnish has the stator core impregnation process of winding, and it is the solvent-free immersion paint of lacquer base that impregnating varnish adopts with cyclochloride resin and insatiable hunger resin, and adopts vacuum impregnation.
2. gearless permanent-magnet hoisting motor dual intensity according to claim 1, zero-air-gap, the corona-resistant insulation system is characterized in that electromagnetic wire adopts complex polyester imines acid imide two-layer compound line, wire enamel requires to have 35% match gram group.
3. gearless permanent-magnet hoisting motor dual intensity according to claim 1, zero-air-gap, the corona-resistant insulation system is characterized in that it is composite flexible material paper thickness 0.25mm that slot liner adopts polyester film aramid fiber paper.
4. gearless permanent-magnet hoisting motor dual intensity according to claim 1, zero-air-gap, the corona-resistant insulation system is characterized in that it is composite flexible material paper thickness 0.3mm that polyester film aramid fiber paper is adopted in the overhang packing insulation.
5. gearless permanent-magnet hoisting motor dual intensity according to claim 1, zero-air-gap, the corona-resistant insulation system is characterized in that polyester film aramid fiber paper is adopted in the interlayer insulation in the groove, is composite flexible material paper thickness 0.35mm.
6. gearless permanent-magnet hoisting motor dual intensity according to claim 1, zero-air-gap, the corona-resistant insulation system is characterized in that insulating mutually and adopts polyester film aramid fiber paper, is composite flexible material hair paper thickness 0.25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200382957U CN201054519Y (en) | 2007-06-15 | 2007-06-15 | Dual-intensity, zero-gas clearance and electric faint resisting insulation system for no gear permanent magnetic traction machine electromotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200382957U CN201054519Y (en) | 2007-06-15 | 2007-06-15 | Dual-intensity, zero-gas clearance and electric faint resisting insulation system for no gear permanent magnetic traction machine electromotor |
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| Publication Number | Publication Date |
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| CN201054519Y true CN201054519Y (en) | 2008-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2007200382957U Expired - Lifetime CN201054519Y (en) | 2007-06-15 | 2007-06-15 | Dual-intensity, zero-gas clearance and electric faint resisting insulation system for no gear permanent magnetic traction machine electromotor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001402A (en) * | 2012-11-20 | 2013-03-27 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Binding method for processing loosened tooth pressure plate of motor stator |
| CN103427523A (en) * | 2012-05-23 | 2013-12-04 | 上海万德风力发电股份有限公司 | Large and permanent magnet wind turbine generator scatteredly embedded winding stator insulation mechanism |
| CN103563220A (en) * | 2011-05-27 | 2014-02-05 | 日立汽车***株式会社 | Rotating electric machine and method of manufacturing same |
| CN106208554A (en) * | 2016-08-27 | 2016-12-07 | 南昌康富科技股份有限公司 | A kind of Novel stator end connection technique |
| CN108886289A (en) * | 2016-04-01 | 2018-11-23 | 三菱电机株式会社 | Rotating electric machine magnetic wedge, rotating electric machine and elevator hoist |
| CN113567324A (en) * | 2021-07-30 | 2021-10-29 | 华域汽车电动***(上海)有限公司 | Method for checking impregnating varnish filling and permeating state in motor stator slot |
-
2007
- 2007-06-15 CN CNU2007200382957U patent/CN201054519Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103563220A (en) * | 2011-05-27 | 2014-02-05 | 日立汽车***株式会社 | Rotating electric machine and method of manufacturing same |
| CN103563220B (en) * | 2011-05-27 | 2016-04-06 | 日立汽车***株式会社 | Electric rotating machine and manufacture method thereof |
| CN103427523A (en) * | 2012-05-23 | 2013-12-04 | 上海万德风力发电股份有限公司 | Large and permanent magnet wind turbine generator scatteredly embedded winding stator insulation mechanism |
| CN103001402A (en) * | 2012-11-20 | 2013-03-27 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Binding method for processing loosened tooth pressure plate of motor stator |
| CN108886289A (en) * | 2016-04-01 | 2018-11-23 | 三菱电机株式会社 | Rotating electric machine magnetic wedge, rotating electric machine and elevator hoist |
| CN106208554A (en) * | 2016-08-27 | 2016-12-07 | 南昌康富科技股份有限公司 | A kind of Novel stator end connection technique |
| CN106208554B (en) * | 2016-08-27 | 2019-05-24 | 康富科技股份有限公司 | A kind of Novel stator end connection technique |
| CN113567324A (en) * | 2021-07-30 | 2021-10-29 | 华域汽车电动***(上海)有限公司 | Method for checking impregnating varnish filling and permeating state in motor stator slot |
| CN113567324B (en) * | 2021-07-30 | 2023-12-05 | 华域汽车电动***(上海)有限公司 | Inspection method for filling penetration state of impregnating varnish in motor stator slot |
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Legal Events
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| C14 | Grant of patent or utility model | ||
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| PP01 | Preservation of patent right |
Effective date of registration: 20130809 Granted publication date: 20080430 |
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| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20140209 Granted publication date: 20080430 |
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| RINS | Preservation of patent right or utility model and its discharge | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080430 |