CN104795923B - High heat conductive insulating structure and preparation method thereof - Google Patents
High heat conductive insulating structure and preparation method thereof Download PDFInfo
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- CN104795923B CN104795923B CN201510193368.9A CN201510193368A CN104795923B CN 104795923 B CN104795923 B CN 104795923B CN 201510193368 A CN201510193368 A CN 201510193368A CN 104795923 B CN104795923 B CN 104795923B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
- H02K3/345—Windings 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/024—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with slots
- H02K15/026—Wound cores
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/10—Applying solid insulation to windings, stators or rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/30—Windings characterised by the insulating material
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The invention discloses a kind of high heat conductive insulating structures and preparation method thereof, including iron core, the electromagnetic wire being embedded in the iron core, heat conduction film, mica tape, alkali-free glass silk ribbon are surrounded by between the electromagnetic wire and iron core successively, the opening of the iron core is sealed with slot wedge, and impregnating varnish is impregnated in the internal voids of the iron core.High heat conductive insulating structure provided by the invention is surrounded by heat conduction film, mica tape, alkali-free glass silk ribbon successively between electromagnetic wire and iron core, passage of heat is formed in entire insulation system, improve heat transfer efficiency inside motor, its internal heat is set to be transmitted to faster at cooling medium, to reduce motor operation Wen Sheng, the operating ambient temperature of insulation is set to be declined to achieve the purpose that improve motor insulation life.
Description
Technical field
The present invention relates to design of electrical motor technical fields, and in particular to a kind of high heat conductive insulating knot suitable for mesohigh motor
Structure and preparation method thereof.
Background technology
Insulation system is the important component of motor, its performance and state determine the safety of motor in operation and
Service life.Motor electrical insulation system in operation, for a long time by hot (Thermal), electric (Electrical), environment (Ambient) and
Mechanical (Mechanical) stress, referred to as TEAM stress, thermal stress are generally acknowledged insulation to be caused to gradually degrade and eventually lead to
The factor of failure., studies have shown that the running temperature of insulation often increases 10 DEG C, the thermal life just about shortens half for some.Heat is answered
Power comes from the running temperature of winding, and temperature first choice comes from the I in copper conductor2R, vortex and stray load loss, then add
Upper iron core is lost and the heat of the generations such as wind moussing loss, and the generation of these heats is that can not avoid under the scope of current technology
's.
To improve the insulation life of motor, it is more higher than motor operation temperature that temperature resistant grade is commonly used in the design process
Insulating materials improves the manufacturing cost of motor simultaneously although this method can improve the service life of motor insulation, more important
Be that the characteristic of insulating materials determines that its temperature resistant grade has the upper limit, when design of electrical motor running temperature reaches 200 degrees Celsius
This method can not just be implemented when left and right.As it can be seen that not only price increases the high insulating materials of performance but also its requirement
Also it can increase, therefore manufacturing process requirement is also improved while increasing cost of goods manufactured using this method.Currently, absolutely
It is to be not added with the insulating materials of heat filling, therefore insulation system overall thermal conductivity is below 0.25w/ used in edge structure
(mk), it is metal material 1 percent between one thousandth, far below conductor, iron core, engine base, becomes motor form portion
It is hindered in point " arch-criminal " of heat transfer.Therefore, insulation system low heat conductivity conducts as restriction heat inside motor main
Factor, improving insulation system heat conductivility is particularly important.
Invention content
In view of this, it is an object of the invention to propose a kind of high heat conductive insulating structure and preparation method thereof, to improve electricity
The heat conductivility of machine insulation system.
Based on above-mentioned purpose, high heat conductive insulating structure provided by the invention includes iron core, the electricity that is embedded in the iron core
Magnet-wire, is surrounded by heat conduction film, mica tape, glass tape successively between the electromagnetic wire and iron core, the opening of the iron core is close
Envelope has slot wedge, and impregnating varnish is impregnated in the internal voids of the iron core.
In some embodiments of the invention, it is sub- to be selected from the polyester film containing Heat Conduction Material, polyamides for the heat conduction film
At least one of amine film and polyether ketone film.
In some embodiments of the invention, the Heat Conduction Material in the heat conduction film is selected from metal oxide, metal nitrogen
At least one of compound, diamond, silicon carbide.
In some embodiments of the invention, the glass tape is alkali-free glass silk ribbon, wherein the Heat Conduction Material contained
Selected from least one of metal oxide, metal nitride, diamond, silicon carbide.
In some embodiments of the invention, the Heat Conduction Material contained in the slot wedge is selected from metal oxide, metal nitrogen
At least one of compound, diamond, silicon carbide.
In some embodiments of the invention, the Heat Conduction Material contained in the impregnating varnish is selected from metal oxide, metal
At least one of nitride, diamond, silicon carbide.
In some embodiments of the invention, it is aoxidized selected from metal containing Heat Conduction Material in the insulating layer of the electromagnetic wire
At least one of object, metal nitride, diamond, silicon carbide.
In some embodiments of the invention, contain Heat Conduction Material in the mica paper and supporting material of the mica tape,
The Heat Conduction Material is selected from least one of metal oxide, metal nitride, diamond, silicon carbide.
In some embodiments of the invention, the metal oxide in aluminium oxide, magnesia, zinc oxide at least
One kind, the metal nitride are selected from least one of aluminium nitride, magnesium nitride, zinc nitride.
The present invention also provides the methods for making above-mentioned high heat conductive insulating structure, include the following steps：
Electromagnetic wire is subjected to fusiformis coiling on fusiformis machine, is carried out after wrapping up tape around the fusiformis electromagnetic wire 3 made
The type that rises and integer；
The tape on gained electromagnetic wire is removed, wraps up heat conduction film, mica tape, glass tape successively outside electromagnetic wire；
Wrapping is had in the electromagnetic wire insertion stator core of heat conduction film, mica tape and glass tape, using containing leading
The slot wedge of hot material is fixed, and then carries out line, uses heat conduction film, mica tape and glass tape to electromagnetic wire after line
Between junction carry out insulation processing；
Gained rule stator iron core is integrally subjected to dipping lacquer, the high heat conductive insulating structure is obtained after solidification.
From the above it can be seen that high heat conductive insulating structure provided by the invention is wrapped successively between electromagnetic wire and iron core
There are heat conduction film, mica tape, alkali-free glass silk ribbon, passage of heat is formed in entire insulation system, improves heat conduction inside motor
Efficiency makes its internal heat be transmitted to faster at cooling medium, to reduce motor operation Wen Sheng, makes the running environment of insulation
Temperature is declined to achieve the purpose that improve motor insulation life.
Description of the drawings
Fig. 1 is the structural schematic diagram along iron core axial direction of the high heat conductive insulating structure of the embodiment of the present invention；
Fig. 2 is the sectional view along the directions A-A in Fig. 1.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in more detail.
Embodiment 1
The production method of high heat conductive insulating structure provided by the invention includes implementation steps in detail below：
1) the fusiformis coiling of formed coil and the type that rises
Electromagnetic wire 3 (its insulating layer contains Heat Conduction Material) is subjected to fusiformis coiling on fusiformis machine, in entire winding process
Uniform tension in order is kept, rise type and integer are carried out after dressing outside tape (as protective layer) around the fusiformis electromagnetic wire 3 made.
In the present embodiment, the tape can select electrician's tape.Optionally, contain heat conduction in the insulating layer of the electromagnetic wire 3
Material, the Heat Conduction Material are selected from least one of metal oxide, metal nitride, diamond, silicon carbide.Such as it aoxidizes
Aluminium, magnesia, zinc oxide, aluminium nitride, magnesium nitride, zinc nitride etc..
2) insulating wrapping of electromagnetic wire
Removal step 1) tape on gained electromagnetic wire 3, it is thin to wrap up outside electromagnetic wire 3 heat conduction successively according to insulating requirements
Film 4 and the folded packet of mica tape 5 each 1/2 are primary, last 1/2 glass tape 6 of folded packet.The wrapping number of plies is decided by motor operation electricity
Pressure, insulation thickness, wrapping packet stack rate, each wrapping being not limited only in the present embodiment are primary.It should be noted that 1/2 is folded
Packet refers to the 50% of the width that next all binders push down one week binder, and binder is twined along the radial direction of electromagnetic wire on one side
Around on one side along electromagnetic wire axially winding, to complete the wrapping of whole electromagnetic wire.
Alternatively it is also possible to wrap up heat conduction film 4, mica tape 5 and glass tape 6 by the way of flat packet.The cloud
Master tape 5 can use low resin mica tape 5.The heat conduction film 4 is selected from the polyester film containing Heat Conduction Material, Kapton
At least one of with polyether ketone film.Heat Conduction Material in the heat conduction film 4 can be selected from metal oxide, nitride metal
At least one of object, diamond, silicon carbide.Such as aluminium oxide, magnesia, zinc oxide, aluminium nitride, magnesium nitride, zinc nitride etc..
Contain Heat Conduction Material in the mica paper and supporting material of the mica tape 5, which aoxidizes selected from metal
At least one of object, metal nitride, diamond, silicon carbide.The glass tape 6 selects alkali glass silk ribbon.Preferably, institute
It states in alkali-free glass silk ribbon and contains Heat Conduction Material, which is selected from metal oxide, metal nitride, diamond, carbonization
At least one of silicon makes glass tape have high thermal conductivity.Such as aluminium oxide, magnesia, zinc oxide, aluminium nitride, nitridation
Magnesium, zinc nitride etc..
3) embedding and line insulation
By electromagnetic wire 3 (wrapping has heat conduction film 4, mica tape 5 and glass tape 6) obtained by step 2) according to design requirement
It in embedded stator core 2, is fixed using the slot wedge 8 containing Heat Conduction Material, then carries out line, line according to design requirement
The junction of heat conduction film 4, mica tape 5 and glass tape 6 between electromagnetic wire is used to carry out insulation processing afterwards.Preferably, institute
It states the Heat Conduction Material contained in slot wedge 8 and is selected from least one of metal oxide, metal nitride, diamond, silicon carbide.Example
Such as aluminium oxide, magnesia, zinc oxide, aluminium nitride, magnesium nitride, zinc nitride.
4) vacuum pressure impregnation
Rule stator iron core obtained by step 3) is integrally put into vacuum pressure impregnated with varnish and carries out dipping lacquer, is then placed in baking
Case is cured according to impregnating varnish solidifying requirements.It is preferable to use the impregnating varnishes 7 containing Heat Conduction Material, to obtain high heat conductive insulating
Structure, referring to Fig. 1 and Fig. 2.Determination of conductive coefficients, the heat conduction measured are carried out to the heat conductive insulating structure using high heat conduction tester
Coefficient is 0.43w/ (mk).
Preferably, the Heat Conduction Material contained in the impregnating varnish 7 is selected from metal oxide, metal nitride, diamond, carbon
At least one of SiClx.Such as aluminium oxide, magnesia, zinc oxide, aluminium nitride, magnesium nitride, zinc nitride etc..
Embodiment 2
The production method of high heat conductive insulating structure provided by the invention includes implementation steps in detail below：
1) the fusiformis coiling of formed coil and the type that rises
Electromagnetic wire 3 (its insulating layer contains Heat Conduction Material) is subjected to fusiformis coiling on fusiformis machine, in entire winding process
Uniform tension in order is kept, rise type and integer are carried out after dressing outside tape (as protective layer) around the fusiformis electromagnetic wire 3 made.
In the present embodiment, the tape can select electrician's tape.Optionally, contain heat conduction in the insulating layer of the electromagnetic wire 3
Material, the Heat Conduction Material are selected from least one of metal oxide, metal nitride, diamond, silicon carbide.Such as it aoxidizes
Aluminium, magnesia, zinc oxide, aluminium nitride, magnesium nitride, zinc nitride etc..
2) insulating wrapping of electromagnetic wire
Removal step 1) tape on gained electromagnetic wire 3, it is thin to wrap up outside electromagnetic wire 3 heat conduction successively according to insulating requirements
Film 4 and the folded packet of mica tape 5 each 1/3 are primary, last 1/2 glass tape 6 of folded packet.The wrapping number of plies is decided by motor operation electricity
Pressure, insulation thickness, wrapping packet stack rate.It should be noted that 1/3 folded packet, which refers to next all binders, pushes down wrapping in one week
The 33.33% of the width of band, binder are wound along the radial direction of electromagnetic wire on one side, are axially wound along electromagnetic wire on one side, to
Complete the wrapping of whole electromagnetic wire.
Alternatively it is also possible to wrap up heat conduction film 4, mica tape 5 and glass tape 6 by the way of flat packet.The cloud
Master tape 5 can use low resin mica tape 5.The heat conduction film 4 is selected from the polyester film containing Heat Conduction Material, Kapton
At least one of with polyether ketone film.Heat Conduction Material in the heat conduction film 4 can be selected from metal oxide, nitride metal
At least one of object, diamond, silicon carbide.Such as aluminium oxide, magnesia, zinc oxide, aluminium nitride, magnesium nitride, zinc nitride etc..
Contain Heat Conduction Material in the mica paper and supporting material of the mica tape 5, which aoxidizes selected from metal
At least one of object, metal nitride, diamond, silicon carbide.The glass tape 6 selects alkali glass silk ribbon.Preferably, institute
It states in alkali-free glass silk ribbon and contains Heat Conduction Material, which is selected from metal oxide, metal nitride, diamond, carbonization
At least one of silicon makes glass tape have high thermal conductivity.Such as aluminium oxide, magnesia, zinc oxide, aluminium nitride, nitridation
Magnesium, zinc nitride etc..
3) embedding and line insulation
By electromagnetic wire 3 (wrapping has heat conduction film 4, mica tape 5 and glass tape 6) obtained by step 2) according to design requirement
It in embedded stator core 2, is fixed using the slot wedge 8 containing Heat Conduction Material, then carries out line, line according to design requirement
The junction of heat conduction film 4, mica tape 5 and glass tape 6 between electromagnetic wire is used to carry out insulation processing afterwards.Preferably, institute
It states the Heat Conduction Material contained in slot wedge 8 and is selected from least one of metal oxide, metal nitride, diamond, silicon carbide.Example
Such as aluminium oxide, magnesia, zinc oxide, aluminium nitride, magnesium nitride, zinc nitride.
4) vacuum pressure impregnation
Rule stator iron core obtained by step 3) is integrally put into vacuum pressure impregnated with varnish and carries out dipping lacquer, is then placed in baking
Case is cured according to impregnating varnish solidifying requirements.It is preferable to use the impregnating varnishes 7 containing Heat Conduction Material, to obtain high heat conductive insulating
Structure, referring to Fig. 1 and Fig. 2.Determination of conductive coefficients, the heat conduction measured are carried out to the heat conductive insulating structure using high heat conduction tester
Coefficient is 0.44w/ (mk).
Preferably, the Heat Conduction Material contained in the impregnating varnish 7 is selected from metal oxide, metal nitride, diamond, carbon
At least one of SiClx.Such as aluminium oxide, magnesia, zinc oxide, aluminium nitride, magnesium nitride, zinc nitride etc..
Embodiment 3
The production method of high heat conductive insulating structure provided by the invention includes implementation steps in detail below：
1) the fusiformis coiling of formed coil and the type that rises
Electromagnetic wire 3 (its insulating layer contains Heat Conduction Material) is subjected to fusiformis coiling on fusiformis machine, in entire winding process
Uniform tension in order is kept, rise type and integer are carried out after dressing outside tape (as protective layer) around the fusiformis electromagnetic wire 3 made.
In the present embodiment, the tape can select electrician's tape.Optionally, contain heat conduction in the insulating layer of the electromagnetic wire 3
Material, the Heat Conduction Material are selected from least one of metal oxide, metal nitride, diamond, silicon carbide.Such as it aoxidizes
Aluminium, magnesia, zinc oxide, aluminium nitride, magnesium nitride, zinc nitride etc..
2) insulating wrapping of electromagnetic wire
Removal step 1) tape on gained electromagnetic wire 3, it is thin to wrap up outside electromagnetic wire 3 heat conduction successively according to insulating requirements
Film 4 and the folded packet of mica tape 5 each 2/3 are primary, last 1/3 glass tape 6 of folded packet.The wrapping number of plies is decided by motor operation electricity
Pressure, insulation thickness, wrapping packet stack rate.It should be noted that 2/3 folded packet, which refers to next all binders, pushes down wrapping in one week
The 66.67% of the width of band, binder are wound along the radial direction of electromagnetic wire on one side, are axially wound along electromagnetic wire on one side, to
Complete the wrapping of whole electromagnetic wire.
Alternatively it is also possible to wrap up heat conduction film 4, mica tape 5 and glass tape 6 by the way of flat packet.The cloud
Master tape 5 can use low resin mica tape 5.The heat conduction film 4 is selected from the polyester film containing Heat Conduction Material, Kapton
At least one of with polyether ketone film.Heat Conduction Material in the heat conduction film 4 can be selected from metal oxide, nitride metal
At least one of object, diamond, silicon carbide.Such as aluminium oxide, magnesia, zinc oxide, aluminium nitride, magnesium nitride, zinc nitride etc..
Contain Heat Conduction Material in the mica paper and supporting material of the mica tape 5, which aoxidizes selected from metal
At least one of object, metal nitride, diamond, silicon carbide.The glass tape 6 selects alkali glass silk ribbon.Preferably, institute
It states in alkali-free glass silk ribbon and contains Heat Conduction Material, which is selected from metal oxide, metal nitride, diamond, carbonization
At least one of silicon makes glass tape have high thermal conductivity.Such as aluminium oxide, magnesia, zinc oxide, aluminium nitride, nitridation
Magnesium, zinc nitride etc..
3) embedding and line insulation
By electromagnetic wire 3 (wrapping has heat conduction film 4, mica tape 5 and glass tape 6) obtained by step 2) according to design requirement
It in embedded stator core 2, is fixed using the slot wedge 8 containing Heat Conduction Material, then carries out line, line according to design requirement
The junction of heat conduction film 4, mica tape 5 and glass tape 6 between electromagnetic wire is used to carry out insulation processing afterwards.Preferably, institute
It states the Heat Conduction Material contained in slot wedge 8 and is selected from least one of metal oxide, metal nitride, diamond, silicon carbide.Example
Such as aluminium oxide, magnesia, zinc oxide, aluminium nitride, magnesium nitride, zinc nitride.
4) vacuum pressure impregnation
Rule stator iron core obtained by step 3) is integrally put into vacuum pressure impregnated with varnish and carries out dipping lacquer, is then placed in baking
Case is cured according to impregnating varnish solidifying requirements.It is preferable to use the impregnating varnishes 7 containing Heat Conduction Material, to obtain high heat conductive insulating
Structure, referring to Fig. 1 and Fig. 2.Determination of conductive coefficients, the heat conduction measured are carried out to the heat conductive insulating structure using high heat conduction tester
Coefficient is 0.42w/ (mk).
Preferably, the Heat Conduction Material contained in the impregnating varnish 7 is selected from metal oxide, metal nitride, diamond, carbon
At least one of SiClx.Such as aluminium oxide, magnesia, zinc oxide, aluminium nitride, magnesium nitride, zinc nitride etc..
Embodiment 4
The production method of high heat conductive insulating structure provided by the invention includes implementation steps in detail below：
1) the fusiformis coiling of formed coil and the type that rises
Electromagnetic wire 3 (its insulating layer contains Heat Conduction Material) is subjected to fusiformis coiling on fusiformis machine, in entire winding process
Uniform tension in order is kept, rise type and integer are carried out after dressing outside tape (as protective layer) around the fusiformis electromagnetic wire 3 made.
In the present embodiment, the tape can select electrician's tape.Optionally, contain heat conduction in the insulating layer of the electromagnetic wire 3
Material, the Heat Conduction Material are selected from least one of metal oxide, metal nitride, diamond, silicon carbide.Such as it aoxidizes
Aluminium, magnesia, zinc oxide, aluminium nitride, magnesium nitride, zinc nitride etc..
2) insulating wrapping of electromagnetic wire
Removal step 1) tape on gained electromagnetic wire 3, it is thin to wrap up outside electromagnetic wire 3 heat conduction successively according to insulating requirements
Film 4 and folded one layer of the packet of mica tape 5 each 1/2, last 2/3 one layer of glass tape 6 of folded packet.The wrapping number of plies is decided by motor operation electricity
Pressure, insulation thickness, wrapping packet stack rate.
Alternatively it is also possible to wrap up heat conduction film 4, mica tape 5 and glass tape 6 by the way of flat packet.The cloud
Master tape 5 can use low resin mica tape 5.The heat conduction film 4 is selected from the polyester film containing Heat Conduction Material, Kapton
At least one of with polyether ketone film.Heat Conduction Material in the heat conduction film 4 can be selected from metal oxide, nitride metal
At least one of object, diamond, silicon carbide.Such as aluminium oxide, magnesia, zinc oxide, aluminium nitride, magnesium nitride, zinc nitride etc..
Contain Heat Conduction Material in the mica paper and supporting material of the mica tape 5, which aoxidizes selected from metal
At least one of object, metal nitride, diamond, silicon carbide.The glass tape 6 selects alkali glass silk ribbon.Preferably, institute
It states in alkali-free glass silk ribbon and contains Heat Conduction Material, which is selected from metal oxide, metal nitride, diamond, carbonization
At least one of silicon makes glass tape have high thermal conductivity.Such as aluminium oxide, magnesia, zinc oxide, aluminium nitride, nitridation
Magnesium, zinc nitride etc..
3) embedding and line insulation
By electromagnetic wire 3 (wrapping has heat conduction film 4, mica tape 5 and glass tape 6) obtained by step 2) according to design requirement
It in embedded stator core 2, is fixed using the slot wedge 8 containing Heat Conduction Material, then carries out line, line according to design requirement
The junction of heat conduction film 4, mica tape 5 and glass tape 6 between electromagnetic wire is used to carry out insulation processing afterwards.Preferably, institute
It states the Heat Conduction Material contained in slot wedge 8 and is selected from least one of metal oxide, metal nitride, diamond, silicon carbide.Example
Such as aluminium oxide, magnesia, zinc oxide, aluminium nitride, magnesium nitride, zinc nitride.
4) vacuum pressure impregnation
Rule stator iron core obtained by step 3) is integrally put into vacuum pressure impregnated with varnish and carries out dipping lacquer, is then placed in baking
Case is cured according to impregnating varnish solidifying requirements.It is preferable to use the impregnating varnishes 7 containing Heat Conduction Material, to obtain high heat conductive insulating
Structure, referring to Fig. 1 and Fig. 2.Determination of conductive coefficients, the heat conduction measured are carried out to the heat conductive insulating structure using high heat conduction tester
Coefficient is 0.43w/ (mk).
Preferably, the Heat Conduction Material contained in the impregnating varnish 7 is selected from metal oxide, metal nitride, diamond, carbon
At least one of SiClx.Such as aluminium oxide, magnesia, zinc oxide, aluminium nitride, magnesium nitride, zinc nitride etc..
It can be seen that be surrounded by heat conduction successively between electromagnetic wire and iron core thin for high heat conductive insulating structure provided by the invention
Film, mica tape, alkali-free glass silk ribbon form passage of heat in entire insulation system, improve heat transfer efficiency inside motor, make it
Internal heat is transmitted to faster at cooling medium, to reduce motor operation Wen Sheng, has made the operating ambient temperature of insulation
Decline to achieve the purpose that improve motor insulation life.
Those of ordinary skills in the art should understand that：The above is only a specific embodiment of the present invention, and
It is not used in the limitation present invention, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done,
It should be included within protection scope of the present invention.
Claims (9)
1. a kind of high heat conductive insulating structure, which is characterized in that including iron core, the electromagnetic wire being embedded in the iron core, the electricity
Heat conduction film, mica tape, glass tape are surrounded by between magnet-wire and iron core successively, the opening of the iron core is sealed with slot wedge, institute
It states and is impregnated with impregnating varnish in the internal voids of iron core, it is sub- that the heat conduction film is selected from the polyester film containing Heat Conduction Material, polyamides
At least one of amine film and polyether ketone film.
2. high heat conductive insulating structure according to claim 1, which is characterized in that the Heat Conduction Material choosing in the heat conduction film
From at least one of metal oxide, metal nitride, diamond, silicon carbide.
3. high heat conductive insulating structure according to claim 1, which is characterized in that the glass tape is alkali-free glass wool
Band, wherein the Heat Conduction Material contained is selected from least one of metal oxide, metal nitride, diamond, silicon carbide.
4. high heat conductive insulating structure according to claim 1, which is characterized in that the Heat Conduction Material choosing contained in the slot wedge
From at least one of metal oxide, metal nitride, diamond, silicon carbide.
5. high heat conductive insulating structure according to claim 1, which is characterized in that the Heat Conduction Material contained in the impregnating varnish
Selected from least one of metal oxide, metal nitride, diamond, silicon carbide.
6. high heat conductive insulating structure according to claim 1, which is characterized in that contain in the insulating layer of the electromagnetic wire and lead
Hot material is selected from least one of metal oxide, metal nitride, diamond, silicon carbide.
7. high heat conductive insulating structure according to claim 1, which is characterized in that the mica paper and reinforcing material of the mica tape
Contain Heat Conduction Material in material, the Heat Conduction Material in metal oxide, metal nitride, diamond, silicon carbide at least
It is a kind of.
8. the high heat conductive insulating structure according to any one of claim 2-7, which is characterized in that the metal oxide choosing
At least one of self-alumina, magnesia, zinc oxide, the metal nitride is in aluminium nitride, magnesium nitride, zinc nitride
It is at least one.
9. a kind of method making high heat conductive insulating structure according to any one of claims 1-7, which is characterized in that
Include the following steps：
Electromagnetic wire is subjected to fusiformis coiling on fusiformis machine, is risen after wrapping up tape around the fusiformis electromagnetic wire (3) made
Type and integer；
The tape on gained electromagnetic wire is removed, wraps up heat conduction film, mica tape, glass tape successively outside electromagnetic wire；
Wrapping is had in the electromagnetic wire insertion stator core of heat conduction film, mica tape and glass tape, using containing heat conduction material
The slot wedge of material is fixed, and then carries out line, uses heat conduction film, mica tape and glass tape between electromagnetic wire after line
Junction carry out insulation processing；
Gained rule stator iron core is integrally subjected to dipping lacquer, the high heat conductive insulating structure is obtained after solidification.
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| CN106300848B (en) * | 2016-08-30 | 2019-07-12 | 北京精密机电控制设备研究所 | A kind of compound dipping lacquer is without the high power to weight ratio permanent magnet synchronous motor of sensor |
| CN107394975A (en) * | 2017-09-01 | 2017-11-24 | 北京三电机系统有限责任公司 | A kind of lamination pressing ring laminating method and stack-press device |
| CN111030409A (en) * | 2019-12-31 | 2020-04-17 | 英格（阳江）电气股份有限公司 | Special generator for nonlinear load |
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