CN109327096A - The slot insulation method of flat wire motor stator - Google Patents

The slot insulation method of flat wire motor stator Download PDF

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Publication number
CN109327096A
CN109327096A CN201811009964.7A CN201811009964A CN109327096A CN 109327096 A CN109327096 A CN 109327096A CN 201811009964 A CN201811009964 A CN 201811009964A CN 109327096 A CN109327096 A CN 109327096A
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CN
China
Prior art keywords
layer
flat wire
motor stator
insulation
wire motor
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Granted
Application number
CN201811009964.7A
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Chinese (zh)
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CN109327096B (en
Inventor
程成
何立志
罗运福
鲁其龙
熊兵
熊一兵
曹文涛
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FUSHENG INSULATION MATERIALS Co Ltd
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FUSHENG INSULATION MATERIALS Co Ltd
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Priority to CN201811009964.7A priority Critical patent/CN109327096B/en
Priority to PCT/CN2018/106202 priority patent/WO2020042245A1/en
Publication of CN109327096A publication Critical patent/CN109327096A/en
Application granted granted Critical
Publication of CN109327096B publication Critical patent/CN109327096B/en
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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K3/00Details of windings
    • H02K3/32Windings characterised by the shape, form or construction of the insulation
    • H02K3/34Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
    • H02K3/345Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation between conductor and core, e.g. slot insulation
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02Non-macromolecular additives
    • C09J11/04Non-macromolecular additives inorganic
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/08Macromolecular additives
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J183/00Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Adhesives based on derivatives of such polymers
    • C09J183/04Polysiloxanes
    • C09J183/06Polysiloxanes containing silicon bound to oxygen-containing groups
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K15/00Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/10Applying solid insulation to windings, stators or rotors
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/011Nanostructured additives
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K2213/00Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03Machines characterised by numerical values, ranges, mathematical expressions or similar information

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Abstract

The present invention provides a kind of slot insulation method of flat wire motor stator, including flat wire motor stator, is equipped with stator slot in the flat wire motor stator, which is characterized in that insulation tube, the insulation tube that the insulation tube is integrally formed are equipped in the stator slot;The insulation tube is symmetrically inserted into inside stator slot.The present invention realizes slot insulation by way of being inserted into insulation tube inside the stator slot in flat wire motor stator, high production efficiency and stable product quality, good insulation preformance.

Description

The slot insulation method of flat wire motor stator
Technical field
The invention belongs to driving motor for electric automobile technical fields, and in particular to a kind of slot insulation side of flat wire motor stator Method.
Background technique
Driving motor for electric automobile (containing permanent magnet DC brushless motor, AC induction motor) is with semiconductor electronic skill The novel all-in-one motor of art development and appearance, it is the product that present electronic technology, control theory and motor technology combine, Have many advantages, such as that high-efficient, the service life is long, Maintenance free, is particularly suitable for application as the engine of electric car.
A kind of existing driving motor for electric automobile, stator include cricoid iron core, and iron core inner wall is equipped with wire casing, wire casing In be wound with enameled wire as winding.But magnetic field strength caused by above-mentioned winding is low, cannot provide for electric car enough Power.And increase weight, volume that winding quantity will increase motor, cause electric car cruising ability to decline.It is existing The metal strip that setting can produce magnetic field after being powered in wire casing can produce stronger magnetic field as electric car and provide foot as winding Enough power and it can effectively extend course continuation mileage.For the effect for realizing insulation, need to insulate between metal strip and wire casing Processing.After the prior art generally uses wrapped with insulation metal strip, then will be among metal strip insertion wire casing.Showed using above-mentioned There is technology, the movement for wrapping up metal strip is complex, the promotion of labor intensive and limit production efficiency.At the same time, using biography Insulating materials is arranged in the mode of the package of system outside metal strip, and insulating materials is difficult to closely be easy pine in conjunction with metal strip It is de-.Especially for fixed metal strip, the width of wire casing and the width of metal strip are closer to, gap between wire casing and metal strip Smaller, by wrapped with insulation, the movement of rear insertion wire casing is easy to make insulating layer breakage, generates gauffer outside metal strip, influences absolutely Edge effect limits the popularization and application of above-mentioned motor.
Summary of the invention
In view of this, the present invention provides a kind of slot insulation method of flat wire motor stator, in the present invention, by flat wire electricity The mode of insertion insulation tube realizes slot insulation inside the stator slot of machine stator, high production efficiency and stable product quality, insulation Performance is good.
The technical solution of the present invention is as follows: the slot insulation method of flat wire motor stator, including flat wire motor stator, the flat wire Stator slot is equipped in motor stator, which is characterized in that insulation tube is equipped in the stator slot, the insulation tube is integrated into The insulation tube of type;The insulation tube is symmetrically inserted into inside stator slot.
Further, the insulation tube includes one or more layers insulating layer and one or more layers wearing layer, the insulation tube Section be rectangle, track type, ellipse or circle;Inner surface and/or the outer surface of insulation tube is arranged in the wearing layer.
Further, the insulating layer includes the polyimide layer set gradually, polyethylene layer, Nomex layer, dioxy SiClx layer, polypropylene layer, the polyimide layer, polyethylene layer, Nomex layer, silicon dioxide layer, polypropylene layer thickness Than for 2:1:2:1:1.
In the present invention, the polyimide layer be polyimides be using tetracarboxylic dianhydride and aromatic diamine monomers as raw material, The polymer being combined to by amidation and imines.Dielectric constant of the Kapton within the scope of room temperature to liquid helium temperature exists Between 3.0~3.2, dielectric loss angle tangent is 10-4~10-3Between, the resistivity under liquid nitrogen temperature is 2.0 × 1017 Ω cm, disruptive field intensity are higher than 150kV/mm].Meanwhile polyimides also has preferable corona resistance and tensile strength.But it is poly- Imido dielectric constant is relatively high, by introducing fluorine atom, aliphatic structure unit, siloxy group can be to some extent Reduce its dielectric constant.
The setting of the silicon dioxide layer, facilitates the transfer of partial charge, to avoid corona caused by charge buildup Breakdown.
The polyethylene layer is polyethylene through high-energy ray irradiation or the addition available cross-linked polyethylene layer of crosslinking agent. Compared with polyethylene, ageing-resistant performance, the environmental stress cracking resistance of crosslinked polyethylene are more preferable, and brittle temperature is lower than polyethylene (crosslinked polyethylene: -76 °C, polyethylene: -70 °C).The dielectric constant and dielectric loss angle tangent of crosslinked polyethylene and poly- second Alkene is close, and insulation resistance is larger.At room temperature, the resistivity of crosslinked polyethylene is higher than 1016Ω cm, dielectric constant are 2.3, dielectric loss angle tangent is 5.0 × 10-4
The Nomex layer is to pass through wet process using poly staple fiber and pulp fibers as raw material Copy paper, dry hot rolling obtain.Dielectric constant of the Nomex under liquid nitrogen temperature is 3.1, and dielectric loss angle tangent is 1.0 × 10-3, disruptive field intensity 35kV/mm.
The polypropylene layer is insulating materials made of being suppressed using porous paper pulp material, polypropylene film as raw material.In liquid At a temperature of nitrogen, the resistivity of PPLP is 2.9 × 1016Ω cm, dielectric constant 2.21, dielectric loss angle tangent 1.0 × 10-4Hereinafter, disruptive field intensity reaches 103.78kV/mm.In addition, polypropylene layer at low temperature also have good mechanical performance and absolutely Edge performance is a kind of insulating materials for being suitable for cold insulation hyperconductive cable.
In the present invention, the research of a large amount of creative works is passed through by present inventor, passes through setting for each layer of insulating layer It sets and is all had very excellent either in the environment of high temperature, low temperature or high humility by their synergistic effect Insulation performance can meet the needs of different insulative situation.
Further, it is fixedly connected between each layer by adhesive, the group of the following parts by weight of described adhesive Point: 23-38 parts of polyvinyl alcohol, 6-13 parts of nano silica, 15-27 parts of polyvinyl pyrrolidone, Epoxy-silsesquioxanes 38-56 parts of acroleic acid resin.
Adhesive in the present invention passes through polyvinyl alcohol, polyvinyl pyrrolidone, Epoxy-silsesquioxanes acroleic acid resin Synergistic effect, can effectively improve the fitment stability of adhesive and layers of material, and increase the Thermal Resistant Surface of layers of material The properties such as property, inoxidizability, hardness can achieve the effect of 100% insulation so that the internal stability of insulating layer is greatly improved.
Further, the insulation tube is helically-wound shaped insulation tube, extrusion forming insulation tube, injection molding insulation Any one of pipe, blow molding insulation tube.
Further, the section of the insulation tube is orthogonal rectangle or arc chord angle rectangle or track type.
Further, the insulation tube is combined along an axis by spiral winding by band side by side, the band Edge be equipped with the first overlay region and the second overlay region along the direction of band, the first overlay region and the second overlapping between adjacent tapes Area overlapping.
Further, the spiral winding refers to band along an axis spiral winding, and first overlay region is set to In front of two overlay regions.
Further, the wearing layer is two layers, is separately positioned on outer surface and the inner surface of insulation tube, the insulating layer It is arranged between two layers of wearing layer.
Further, the insulation tube be symmetrically inserted into the method inside stator slot the following steps are included:
S1. the profiled insulation pipe sleeve to match with flat wire motor stator wire casing size is chosen, the size according to stator is to insulation sleeve The length of pipe carries out cutting preprocessing;
S2. flat wire motor stator to be intubated is put into fixed in positioning cage plate;
S3. the insulative pipe sleeve Jing Guo preprocessing is put into feeding mechanism, is sent by transport mechanism to the positioning mechanism at rear;
S4. the insulative pipe sleeve clamping of positioning mechanism is sent to transverse plane on flat wire motor stator wire casing by feeding clip mechanism;
S5. guiding mechanism is moved to above the flat wire motor stator of positioning cage plate;Step S4, S5 is synchronous carries out;
S6. insulating sleeve is sent into inside flat wire motor stator wire casing by feeding clip mechanism by guiding mechanism;
S7. insulating sleeve is all filled in flat wire motor stator wire casing by flattening mechanism;
S8. machined flat wire motor stator is taken out, new flat wire motor stator is put into, each reset repeats S1-S7 step.
It is Promethean to be realized by the way of being directly inserted into insulation tube to the stator slot of flat wire motor stator in the present invention Slot insulation can guarantee the consistency of the insulation pipe size of insertion, while profiled insulation pipe does not have gap, and insulation performance is more It is good.The present invention greatly improves the effect of processing in such a way that finished sleeve batch is mechanically inserted flat wire motor stator wire casing Rate can be further ensured that the copper factor of flat wire motor stator, provide safeguard for the flexibility of winding wire size design.
In the present invention, slot insulation is realized by way of being inserted into insulation tube inside the stator slot in flat wire motor stator, High production efficiency and stable product quality, while being inserted into metal strip in insulation tube and the admittance of stator can be realized, it is inserted into metal The movement of item is relatively simple, and mechanical automation can be selected and complete.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of insulation tube of the present invention;
Fig. 2 is the structural schematic diagram of stator of the present invention;
Fig. 3 is the partial enlarged view of stator of the present invention;
Fig. 4 is the structural schematic diagram of stator of the present invention;
Fig. 5 is the structural schematic diagram of another embodiment of the present invention;
Fig. 6 is the structural schematic diagram of the embodiment of the present invention 5;
Fig. 7 is the structural schematic diagram of the embodiment of the present invention 6;
Fig. 8 is the sectional view of the embodiment of the present invention 6;
Fig. 9 is the structural schematic diagram of the embodiment of the present invention 7;
Figure 10 is the structural schematic diagram of the embodiment of the present invention 8;
Figure 11 is the partial enlarged view of the embodiment of the present invention 8;
Figure 12 is a kind of structural schematic diagram of insulating layer of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
The slot insulation method of flat wire motor stator, including flat wire motor stator, the flat wire motor stator is interior to be equipped with stator slot, It is characterized in that, being equipped with insulation tube, the insulation tube that the insulation tube is integrally formed in the stator slot;The insulation tube pair Title is inserted into inside stator slot.
Further, the insulation tube be symmetrically inserted into the method inside stator slot the following steps are included:
S1. the profiled insulation pipe sleeve to match with flat wire motor stator wire casing size is chosen, the size according to stator is to insulation sleeve The length of pipe carries out cutting preprocessing;
S2. flat wire motor stator to be intubated is put into fixed in positioning cage plate;
S3. the insulative pipe sleeve Jing Guo preprocessing is put into feeding mechanism, is sent by transport mechanism to the positioning mechanism at rear;
S4. the insulative pipe sleeve clamping of positioning mechanism is sent to transverse plane on flat wire motor stator wire casing by feeding clip mechanism;
S5. guiding mechanism is moved to above the flat wire motor stator of positioning cage plate;Step S4, S5 is synchronous carries out;
S6. insulating sleeve is sent into inside flat wire motor stator wire casing by feeding clip mechanism by guiding mechanism;
S7. insulating sleeve is all filled in flat wire motor stator wire casing by flattening mechanism;
S8. machined flat wire motor stator is taken out, new flat wire motor stator is put into, each reset repeats S1-S7 step.
Such as Fig. 1, the winding insulation casing of the present embodiment, tube wall includes 2 layer insulatings and 1 layer of wearing layer, the insulation The section of casing is track type.
Further, the insulating sleeve is formed by 3 bands arranged side by side around an axis spiral winding, and shape respectively At the insulating layer and wearing layer, the edge of the band is equipped with the first overlay region 11 and the second overlay region along the direction of band 12, the first overlay region 11 and the overlapping of the second overlay region 12 between adjacent tapes.3 bands are respectively insulate band 1, insulation Band 2 and wear-resisting band 3, the setting of insulation band 1 is in 2 inside of insulation band, and the setting of insulation band 2 is in wear-resisting 3 inside of band.Through After crossing spiral winding, 3 overlapped bands form interlaced the first insulating layer, second insulating layer and wearing layer.It is resistance to Mill layer is wrapped in the outer surface of casing.
Further, first overlay region 11 is set to 12 front of the second overlay region.
In the present embodiment, the insulating layer is made of fire-retardant, high temperature high voltage resistant, corrosion resistant insulating materials, such as commercially available PI film strips, the wearing layer are made of fire-retardant, high temperature resistant, corrosion-resistant, wear-resisting insulating materials, such as commercially available NOMEX insulating paper.
Embodiment 2
The present embodiment provides the flat wire motor stators on a kind of driving motor for electric automobile, such as Fig. 2 and Fig. 3, including stator body 5 And the stator teeth 6 of stator body inner ring is set, the stator for accommodating stator winding is formed between the adjacent stators teeth portion Wire casing 7, inserted with 2 driving motor for electric automobile stator insulation casings 4 as described in Example 1 in the stator slot.
In the present embodiment, the stator body is overrided to form by multi-layer annular silicon steel sheet piece, after laminating molding, using punching machine Go out the stator slot.
Embodiment 3
The present embodiment provides a kind of flat wire motor stator of driving motor for electric automobile, such as Fig. 4, including stator body 5 and The stator teeth 6 of stator body inner ring is set, forms the stator slot for accommodating stator winding between the adjacent stators teeth portion 7, inserted with 2 brushless DC motor stator insulating sleeves 4 as described in Example 1 in the stator slot;The insulation sleeve Inserted with metal strip 8 in pipe 4.
Further, the stator body is formed by multi-layer annular silicon steel plate stacking.
Further, the both ends of the stator body are equipped with the short-circuited conducting sleeve 9 for metal strip in adjacent stators wire casing to be connected.
In the present embodiment, metal strip is commercially available enamel-cover copper bar or bare bar copper.
Embodiment 4
The present embodiment provides the present embodiment provides a kind of flat wire motor stator of driving for electric vehicle, such as Fig. 5, including stator sheets Body 5 and the stator teeth 6 that stator body inner ring is arranged in form between the adjacent stators teeth portion and accommodate determining for stator winding Sub-line slot 7, inserted with 1 driving motor for electric automobile stator insulation casing 4 as described in Example 1 in the stator slot; Inserted with metal strip 8 in the insulating sleeve 4.
Further, the stator body is formed by multi-layer annular silicon steel plate stacking.
Embodiment 5
Such as Fig. 6, the present embodiment provides the insulation tube of the flat wire motor stator for driving motor for electric automobile, tube wall includes 1 layer insulating and 2 layers of wearing layer, the section of the insulating sleeve are track type.
Further, the insulating sleeve is formed by 3 bands arranged side by side around an axis spiral winding, and shape respectively At the insulating layer and wearing layer, the edge of the band is equipped with the first overlay region 11 and the second overlay region along the direction of band 12, the first overlay region 11 and the overlapping of the second overlay region 12 between adjacent tapes.3 bands are respectively the band 1, wear-resisting of insulating Band 10 and wear-resisting band 3, the setting of insulation band 1 are arranged in wear-resisting band 3 in wear-resisting 10 inside of band, wear-resisting band 10 Side.After spiral winding, it is wear-resisting that 3 overlapped bands form interlaced insulating layer, the first wearing layer and second Layer.First wearing layer and the second wearing layer are wrapped in the surfaces externally and internally of insulating sleeve.
Further, the first overlay region 11 of three bands is set to 12 front of the second overlay region.
In the present embodiment, the insulating layer is made of commercially available PI film strips, and the wearing layer is insulating paper wear-resistant material system At.
Embodiment 6
Such as Fig. 7, the present embodiment provides the insulation tube of the flat wire motor stator for driving motor for electric automobile, tube wall includes 1 layer insulating and 1 layer of wearing layer, such as Fig. 8, the section of the insulating sleeve are round rectangle.
Further, the insulating sleeve is formed by 2 bands arranged side by side around an axis spiral winding, and shape respectively At the insulating layer and wearing layer, the edge of the band is equipped with the first overlay region and the second overlay region, phase along the direction of band The first overlay region and the second overlapping area overlapping between the material of adjacent band.3 bands respectively insulation band 1 and wear-resisting band 3, absolutely Wear-resisting 3 inside of band is arranged in marginal zone material 1.After spiral winding, 2 overlapped bands form interlaced insulating layer And wearing layer.
Further, the first overlay region of 2 bands is set in front of the second overlay region.
In the present embodiment, the insulating layer is made of commercially available PI film strips, and the wearing layer is insulating paper wear-resistant material system At.
Embodiment 7
Such as Fig. 9, the present embodiment provides the insulation tube of the flat wire motor stator for driving motor for electric automobile, tube wall includes 2 layer insulatings and 2 layers of wearing layer, the section of the insulating sleeve are track type.
Further, the insulating sleeve is formed by 4 bands arranged side by side around an axis spiral winding, and shape respectively At the insulating layer and wearing layer, the edge of the band is equipped with the first overlay region and the second overlay region, phase along the direction of band The first overlay region and the second overlapping area overlapping between the material of adjacent band.4 bands are respectively wear-resisting band 14, insulation from the inside to the outside Band 1, insulation band 2 and wear-resisting band 3,4 overlapped bands form interlaced insulating layer and wearing layer.It is wear-resisting Band 14 and wear-resisting band 3 are formed by outer surface and the inner surface that wearing layer is located at insulating sleeve.
Further, first overlay region is set in front of the second overlay region.
In the present embodiment, the insulating layer is made of commercially available PI film strips, and the wearing layer is insulating paper wear-resistant material system At.
Embodiment 8
The present embodiment provides the present embodiment provides a kind of flat wire motor stators of driving motor for electric automobile, such as Figure 10 and figure 11, including stator body 15 and the stator teeth 16 of stator body outer ring is set, is formed between the adjacent stators teeth portion The stator slot 17 of stator winding is accommodated, is driven in the stator slot inserted with 1 electric car as described in Example 1 electric Machine stator insulating sleeve 4;Inserted with metal strip 8 in the insulating sleeve 4.
Further, the both ends of the stator body are equipped with the short-circuited conducting sleeve 9 for metal strip in adjacent stators wire casing to be connected.
Embodiment 9
The present embodiment provides a kind of consistent with embodiment 1, the difference is that the insulating layer includes the polyamides Asia set gradually Amine layer 100, polyethylene layer 200, Nomex layer 300, silicon dioxide layer 400, polypropylene layer 500, the polyimide layer gather Pvdf layer, Nomex layer, silicon dioxide layer, polypropylene layer thickness ratio be 2:1:2:1:1.
In the present invention, the research of a large amount of creative works is passed through by present inventor, passes through setting for each layer of insulating layer It sets and is all had very excellent either in the environment of high temperature, low temperature or high humility by their synergistic effect Insulation performance can meet the needs of different insulative situation.
Further, it is fixedly connected between each layer by adhesive, the group of the following parts by weight of described adhesive Point: 29 parts of polyvinyl alcohol, 9 parts of nano silica, 21 parts of polyvinyl pyrrolidone, Epoxy-silsesquioxanes acrylic acid tree 43 parts of ester.
Adhesive in the present invention passes through polyvinyl alcohol, polyvinyl pyrrolidone, Epoxy-silsesquioxanes acroleic acid resin Synergistic effect, can effectively improve the fitment stability of adhesive and layers of material, and increase the Thermal Resistant Surface of layers of material The properties such as property, inoxidizability, hardness can achieve the effect of 100% insulation so that the internal stability of insulating layer is greatly improved.
Embodiment 10
The present embodiment provides a kind of consistent with embodiment 1, the difference is that the insulating layer includes the polyamides Asia set gradually Amine layer, polyethylene layer, Nomex layer, silicon dioxide layer, polypropylene layer, the polyimide layer, polyethylene layer, Nomex Layer, silicon dioxide layer, polypropylene layer thickness ratio be 2:1:2:1:1.
In the present invention, the research of a large amount of creative works is passed through by present inventor, passes through setting for each layer of insulating layer It sets and is all had very excellent either in the environment of high temperature, low temperature or high humility by their synergistic effect Insulation performance can meet the needs of different insulative situation.
Further, it is fixedly connected between each layer by adhesive, the group of the following parts by weight of described adhesive Point: 33 parts of polyvinyl alcohol, 8 parts of nano silica, 24 parts of polyvinyl pyrrolidone, Epoxy-silsesquioxanes acrylic acid tree 53 parts of ester.
Adhesive in the present invention passes through polyvinyl alcohol, polyvinyl pyrrolidone, Epoxy-silsesquioxanes acroleic acid resin Synergistic effect, can effectively improve the fitment stability of adhesive and layers of material, and increase the Thermal Resistant Surface of layers of material The properties such as property, inoxidizability, hardness can achieve the effect of 100% insulation so that the internal stability of insulating layer is greatly improved.
Embodiment 11
The present embodiment provides a kind of consistent with embodiment 1, the difference is that the insulating layer includes the polyamides Asia set gradually Amine layer, polyethylene layer, Nomex layer, silicon dioxide layer, polypropylene layer, the polyimide layer, polyethylene layer, Nomex Layer, silicon dioxide layer, polypropylene layer thickness ratio be 2:1:2:1:1.
In the present invention, the research of a large amount of creative works is passed through by present inventor, passes through setting for each layer of insulating layer It sets and is all had very excellent either in the environment of high temperature, low temperature or high humility by their synergistic effect Insulation performance can meet the needs of different insulative situation.
Further, it is fixedly connected between each layer by adhesive, the group of the following parts by weight of described adhesive Point: 23 parts of polyvinyl alcohol, 6 parts of nano silica, 15 parts of polyvinyl pyrrolidone, Epoxy-silsesquioxanes acrylic acid tree 38 parts of ester.
Adhesive in the present invention passes through polyvinyl alcohol, polyvinyl pyrrolidone, Epoxy-silsesquioxanes acroleic acid resin Synergistic effect, can effectively improve the fitment stability of adhesive and layers of material, and increase the Thermal Resistant Surface of layers of material The properties such as property, inoxidizability, hardness can achieve the effect of 100% insulation so that the internal stability of insulating layer is greatly improved.
Embodiment 12
The present embodiment provides a kind of consistent with embodiment 1, the difference is that the insulating layer includes the polyamides Asia set gradually Amine layer, polyethylene layer, Nomex layer, silicon dioxide layer, polypropylene layer, the polyimide layer, polyethylene layer, Nomex Layer, silicon dioxide layer, polypropylene layer thickness ratio be 2:1:2:1:1.
In the present invention, the research of a large amount of creative works is passed through by present inventor, passes through setting for each layer of insulating layer It sets and is all had very excellent either in the environment of high temperature, low temperature or high humility by their synergistic effect Insulation performance can meet the needs of different insulative situation.
Further, it is fixedly connected between each layer by adhesive, the group of the following parts by weight of described adhesive Point: 38 parts of polyvinyl alcohol, 13 parts of nano silica, 27 parts of polyvinyl pyrrolidone, Epoxy-silsesquioxanes acrylic acid tree 56 parts of ester.
Adhesive in the present invention passes through polyvinyl alcohol, polyvinyl pyrrolidone, Epoxy-silsesquioxanes acroleic acid resin Synergistic effect, can effectively improve the fitment stability of adhesive and layers of material, and increase the Thermal Resistant Surface of layers of material The properties such as property, inoxidizability, hardness can achieve the effect of 100% insulation so that the internal stability of insulating layer is greatly improved.
Embodiment 13
The present embodiment provides a kind of consistent with embodiment 1, the difference is that the insulating layer includes the polyamides Asia set gradually Amine layer 100, polyethylene layer 200, Nomex layer 300, silicon dioxide layer 400, polypropylene layer 500, the polyimide layer gather Pvdf layer, Nomex layer, silicon dioxide layer, polypropylene layer thickness ratio be 2:1:2:1:1.
In the present invention, the research of a large amount of creative works is passed through by present inventor, passes through setting for each layer of insulating layer It sets and is all had very excellent either in the environment of high temperature, low temperature or high humility by their synergistic effect Insulation performance can meet the needs of different insulative situation.
Further, it is fixedly connected between each layer by adhesive, the group of the following parts by weight of described adhesive Point: 29 parts of polyvinyl alcohol, 9 parts of nano silica, 21 parts of polyvinyl pyrrolidone.
Embodiment 14
The present embodiment provides a kind of consistent with embodiment 1, the difference is that the insulating layer includes the polyamides Asia set gradually Amine layer 100, polyethylene layer 200, Nomex layer 300, silicon dioxide layer 400, polypropylene layer 500, the polyimide layer gather Pvdf layer, Nomex layer, silicon dioxide layer, polypropylene layer thickness ratio be 2:1:2:1:1.
In the present invention, the research of a large amount of creative works is passed through by present inventor, passes through setting for each layer of insulating layer It sets and is all had very excellent either in the environment of high temperature, low temperature or high humility by their synergistic effect Insulation performance can meet the needs of different insulative situation.
Further, it is fixedly connected between each layer by adhesive, the group of the following parts by weight of described adhesive Point: 29 parts of polyvinyl alcohol, 9 parts of nano silica, 21 parts of polyvinyl pyrrolidone.
Adhesive performance evaluation
By the adhesive of embodiment 9-14, each is respectively coated on pressing plate, carries out pre-hardening by precuring.By adding After heat, polishing and similar step, friction material is made by known preparation method.Shearing resistance examination is carried out to friction material at normal temperature It tests (according to JISD4422), measures shearing strength and base material area of cracks, as a result as shown in the table.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, and do not carrying on the back In the case where from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter from which From the point of view of a bit, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is wanted by appended right Ask rather than above description limit, it is intended that by all changes that come within the meaning and range of equivalency of the claims It is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.It is noted that the technical characteristic being not described in detail in the present invention, it can be by appointing One prior art is realized.

Claims (10)

1. the slot insulation method of flat wire motor stator, including flat wire motor stator, the flat wire motor stator is interior to be equipped with stator line Slot, which is characterized in that insulation tube, the insulation tube that the insulation tube is integrally formed are equipped in the stator slot;The insulation Pipe is symmetrically inserted into inside stator slot.
2. the slot insulation method of flat wire motor stator according to claim 1, which is characterized in that the insulation tube includes one Layer or multilayer dielectric layer and one or more layers wearing layer, the section of the insulation tube are rectangle, track type, ellipse or circle; Inner surface and/or the outer surface of insulation tube is arranged in the wearing layer.
3. the slot insulation method of flat wire motor stator according to claim 2, which is characterized in that the insulation tube is spiral Any one of Wrapping formed insulation tube, extrusion forming insulation tube, injection molding insulation tube, blow molding insulation tube.
4. the slot insulation method of flat wire motor stator according to claim 3, which is characterized in that the section of the insulation tube For orthogonal rectangle or arc chord angle rectangle or track type.
5. the slot insulation method of flat wire motor stator according to claim 4, which is characterized in that the insulation tube is by side by side Band be combined along an axis by spiral winding, the edge of the band along the direction of band be equipped with the first overlay region and Second overlay region, the first overlay region and the second overlapping area overlapping between adjacent tapes.
6. the slot insulation method of flat wire motor stator according to claim 5, which is characterized in that the spiral winding refers to Along an axis spiral winding, first overlay region is set in front of the second overlay region band.
7. the slot insulation method of flat wire motor stator according to claim 6, which is characterized in that the wearing layer is two Layer, is separately positioned on outer surface and the inner surface of insulation tube, and the insulating layer is arranged between two layers of wearing layer.
8. the slot insulation method of flat wire motor stator according to claim 2, which is characterized in that the insulating layer include according to The polyimide layer of secondary setting, polyethylene layer, Nomex layer, silicon dioxide layer, polypropylene layer, the polyimide layer gather Pvdf layer, Nomex layer, silicon dioxide layer, polypropylene layer thickness ratio be 2:1:2:1:1.
9. the slot insulation method of flat wire motor stator according to claim 8, which is characterized in that pass through between each layer Adhesive is fixedly connected, the component of the following parts by weight of described adhesive: 23-38 parts of polyvinyl alcohol, nano silica 6- 13 parts, 15-27 parts of polyvinyl pyrrolidone, 38-56 parts of Epoxy-silsesquioxanes acroleic acid resin.
10. the slot insulation method of flat wire motor stator according to claim 1, which is characterized in that the insulation tube is symmetrical The method that is inserted into inside stator slot the following steps are included:
S1. the profiled insulation pipe to match with flat wire motor stator wire casing size is chosen, the size according to stator is to insulating sleeve Length carry out cutting preprocessing;
S2. flat wire motor stator to be intubated is put into fixed in positioning cage plate;
S3. the insulation tube Jing Guo preprocessing is put into feeding mechanism, is sent by transport mechanism to the positioning mechanism at rear;
S4. the insulation tube clamping of positioning mechanism is sent to transverse plane on flat wire motor stator wire casing by feeding clip mechanism;
S5. guiding mechanism is moved to above the flat wire motor stator of positioning cage plate;Step S4, S5 is synchronous carries out;
S6. insulating sleeve is sent into inside flat wire motor stator wire casing by feeding clip mechanism by guiding mechanism;
S7. insulating sleeve is all filled in flat wire motor stator wire casing by flattening mechanism;
S8. machined flat wire motor stator is taken out, new flat wire motor stator is put into, each reset repeats S1-S7 step.
CN201811009964.7A 2018-08-31 2018-08-31 Slot insulation method of flat wire motor stator Active CN109327096B (en)

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PCT/CN2018/106202 WO2020042245A1 (en) 2018-08-31 2018-09-18 Slot insulation method for flat-wire motor stator

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