CN106533013B - Motor stator insulation structure and manufacturing method thereof and motor applying motor stator insulation structure - Google Patents
Motor stator insulation structure and manufacturing method thereof and motor applying motor stator insulation structure Download PDFInfo
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- CN106533013B CN106533013B CN201611077048.8A CN201611077048A CN106533013B CN 106533013 B CN106533013 B CN 106533013B CN 201611077048 A CN201611077048 A CN 201611077048A CN 106533013 B CN106533013 B CN 106533013B
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- foaming
- stator core
- coil winding
- stator
- module
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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
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
-
- 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
- H02K15/105—Applying solid insulation to windings, stators or rotors to the windings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
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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 motor stator insulation structure, a manufacturing method thereof and a motor using the same, wherein the motor stator insulation structure comprises a stator core, a slot insulation piece and a coil winding, the stator core comprises a yoke part and tooth parts, two adjacent tooth parts form a slot, the slot insulation piece is arranged in the slot, the middle part of the coil winding is nested in the slot, the slot insulation piece isolates the coil winding from the stator core, part of the coil winding protrudes out of two end faces of the stator core, at least one end face of the stator core is injected with a foaming material to form an end part foaming module, the end part foaming module wraps the part of the coil winding protruding out of one end face of the stator core, and after the foaming material is solidified, the end part foaming module forms a hard shell type protection, so that the motor stator insulation structure is better in flame retardant, insulation and environmental protection performance and strong.
Description
The technical field is as follows:
the invention relates to a motor stator insulation structure, a manufacturing method thereof and a motor using the same.
Background art:
current motor stator module carries out long-term electrical insulation and enameled wire line body fixed etc. through adopting the dip coating, stator module includes stator core, coil winding and power supply lead-out wire, coil winding is on stator core, the lead-out wire is connected with coil winding through the electric welding, the stator connects the line after, whole stator core is taken off and is soaked mucus form insulated paint, soak time needs 3 hours, soak the completion back, taking off the stoving, the stoving is accomplished the back recooling, cooling time needs 1 hour, the problem exists:
1) the paint dipping process is long in time, consumes time and slows down the working progress;
2) the coil winding is insulated by dipping paint, so that the physical isolation effect is insufficient, and the electromagnetic noise is large;
3) the coil winding and the lead-out wire have no stable state.
4) The stator assembly has poor integrity, and the outer surface of the stator assembly is not protected by a hard shell and is easy to damage; the characteristics of flame retardance, insulation and environmental protection are poor;
the invention content is as follows:
the invention aims to provide an insulation structure of a motor stator, which has the advantages that the connection between a coil winding and a power supply outgoing line is more stable through an end foaming module, the physical isolation effect is good, the integrity is strong, the outer surface is protected by a foaming hard shell, and the flame retardant, insulation and environmental protection performances are better.
The invention also aims to provide the motor which has more stable performance, better flame retardant, insulating and environment-friendly performances and can reduce the noise of the motor.
The invention also aims to provide a manufacturing method of the insulation structure of the motor stator, which is simple to manufacture, shortens the insulation time of the stator and can quickly improve the production.
The purpose of the invention is realized by the following technical scheme.
The utility model provides a stator insulation system, including stator core, slot insulation and coil winding, stator core includes yoke portion and tooth portion, two adjacent tooth portions form the rule groove, at rule groove inside mounting groove insulation, coil winding's middle part is nested in the rule groove, slot insulation keeps apart coil winding and stator core, the terminal surface protrusion of two of stator core is followed to partial coil winding, it forms tip foaming module to mould plastics the foaming material on a terminal surface of stator core at least, the coil winding of the part that a terminal surface protrusion from stator core was lived to tip foaming module parcel.
The two end faces of the stator core are respectively provided with an end foaming module in an injection molding mode, and the end foaming modules wrap the coil windings protruding from the two end faces of the stator core.
The foaming material also enters the wire embedding groove to form a groove foaming module, and the groove foaming module wraps the middle part of the coil winding in the wire embedding groove.
The two end foaming modules and the groove foaming module form a whole body to wrap the whole coil winding.
The end foaming module extends to the end face of the stator core and is attached to the end face.
The outer side surface of the stator core is provided with a plurality of axial grooves distributed at intervals, and the positions, corresponding to the axial grooves, on the end foaming module are also provided with pits.
The end foaming module is annular, the annular inner side face of the end foaming module leans against the inner circle of the stator core, and the annular outer side face of the end foaming module is located within the outer edge of the stator core.
An electrical machine comprising a stator, a rotor, a shaft, a bearing and a housing assembly, wherein the stator incorporates a stator insulation arrangement to isolate a stator core from a coil winding, the stator insulation arrangement being any one of the stator insulation arrangements described above.
A method for manufacturing an insulation structure of a motor stator comprises the following steps,
step A), a slot insulation piece is placed in a slot of a stator core, then a coil winding is wound on a tooth part of the stator core, the middle part of the coil winding is embedded in the slot, the coil winding and the stator core are isolated by the slot insulation piece, and part of the coil winding protrudes out of two end faces of the stator core;
step B), manufacturing a foaming mold, combining the foaming mold with the stator iron core, enabling the inner side wall surface of the foaming mold to shield the opening of the wire embedding groove, and wrapping coil windings protruding from the two end surfaces of the stator iron core by the two ends of the foaming mold;
and C) performing a foam injection process in a cavity of the foaming mold to enable the injection molding foaming material to form an end foaming module, wherein the end foaming module wraps the coil winding protruding out of the end face of the stator core, the foaming material also enters the slot to form a slot foaming module, and the slot foaming module wraps the middle part of the coil winding in the slot.
Compared with the prior art, the invention has the following effects:
1) according to the motor stator insulation structure, the foaming material is injected and molded on at least one end face of the stator core to form the end foaming module, the end foaming module wraps the coil winding protruding out of one end face of the stator core, the foaming material is quickly cured to form the module, the end foaming module enables the coil winding to be more stably connected with the power supply outgoing line, and the physical isolation effect is good; the end foaming module forms a hard shell type protection, and has better flame retardant, insulation and environmental protection performances and strong integrity.
2) The two end faces of the stator core are respectively formed with an end foaming module in an injection molding mode, the end foaming modules wrap coil windings which protrude from the two end faces of the stator core, the foaming material also enters the wire embedding grooves to form the groove foaming modules, the groove foaming modules wrap the middle parts of the coil windings in the wire embedding grooves, the foaming material completely wraps the coil windings, the motor noise can be reduced, the integrity is strong, and the flame retardant, insulating and environment-friendly performances are better;
3) a plurality of axial grooves distributed at intervals are formed in the outer side surface of the stator core, and pits are formed in the positions, corresponding to the axial grooves, on the end foaming module, so that bolts can conveniently penetrate through the stator core during the whole machine assembly;
4) placing a slot insulator in a slot of a stator core, then winding coil windings on a tooth part of the stator core, enabling the middle part of the coil windings to be nested in the slot, separating the coil windings and the stator core by the slot insulator, enabling part of the coil windings to protrude from two end faces of the stator core, manufacturing a foaming mould, combining the foaming mould and the stator core to enable the inner side wall face of the foaming mould to shield the opening of the slot, enabling two ends of the foaming mould to wrap the part of the coil windings protruding from the two end faces of the stator core, performing a foam injection process in a cavity of the foaming mould, enabling injection-molded foaming materials to form an end foaming module, wrapping the part of the coil windings protruding from the end face of the stator core by the end foaming module, enabling the foaming materials to enter the slot to form the foaming module, and wrapping the middle part of the coil windings in the slot by the slot foaming module, the manufacturing is simple, the insulation time of the stator is shortened, the time from foaming to foam forming and curing of the motor stator is not more than 30 seconds, the foam has the characteristics of flame retardance, insulation and environmental protection after being formed, and the production capacity can be rapidly improved.
5) The motor of the invention adopts the motor stator insulation structure, so that the motor has more stable performance, better flame retardant, insulation and environmental protection performances, and can effectively reduce the noise of the motor.
Description of the drawings:
FIG. 1 is a schematic perspective view of a non-foamed stator structure of the present invention;
FIG. 2 is a front view of a non-foamed stator structure of the present invention;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is a schematic perspective view of a stator structure of the present invention in which one end face is finished with foaming;
FIG. 5 is a front view of a stator structure of the present invention in which one end face is finished with foaming;
FIG. 6 is a cross-sectional view B-B of FIG. 5;
FIG. 7 is a schematic perspective view of a stator structure of the present invention with both ends foamed;
fig. 8 is a partial view of a stator structure with both ends foamed according to the present invention.
The specific implementation mode is as follows:
the present invention will be described in further detail below with reference to specific embodiments and with reference to the accompanying drawings.
The first embodiment is as follows: as shown in fig. 1 to 8, the present embodiment is a stator insulation structure, including a stator core 1, a slot insulator 2 and a coil winding 3, where the stator core 1 includes a yoke portion 11 and tooth portions 12, two adjacent tooth portions 12 form a slot 121, the slot insulator 2 is installed in the slot 121, the middle of the coil winding 3 is embedded in the slot 121, the slot insulator 2 isolates the coil winding 3 from the stator core 1, and part of the coil winding 3 protrudes from two end faces of the stator core 1, where a foam material is injected on at least one end face of the stator core 1 to form an end foam module 4, and the end foam module 4 wraps the part of the coil winding 3 protruding from one end face of the stator core 1.
Both end faces of the stator core 1 are molded with an end foaming module 4, and the end foaming module 4 wraps the coil winding 3 protruding from the two end faces of the stator core 1.
The foaming material also enters the embedding groove 121 to form a groove foaming module 5, and the groove foaming module 5 wraps the middle part of the coil winding 3 in the embedding groove 121.
The two end foaming modules 4 and the slot foaming module 5 form a whole body, and wrap the whole coil winding 3.
The end foaming module 4 extends to the end face of the stator core 1 and is attached to the end face.
A plurality of axial grooves 13 distributed at intervals are arranged on the outer side surface of the stator core 1, and pits 41 are also arranged on the end foaming module 4 corresponding to the axial grooves 13.
The circle plays the expanded material of moulding plastics in stator core 1, and the excircle diameter ratio of tip foaming module 4 is little than stator core 1 excircle diameter, makes the expanded material evenly distributed in the cavity between tip foaming module 4 and the stator core 1.
Example two: an electrical machine comprising a stator, a rotor, a shaft, a bearing and a housing assembly, wherein the stator has a stator insulation applied thereto to isolate a stator core 1 from a coil winding 3, said stator insulation being any of the stator insulations described in the first embodiment above.
The invention also discloses a manufacturing method of the insulation structure of the motor stator, which comprises the following steps:
step A), a slot insulator 2 is placed in a slot 121 of a stator core 1, then a coil winding 3 is wound on a tooth part 12 of the stator core 1, the middle part of the coil winding 3 is embedded in the slot 121, the slot insulator 2 isolates the coil winding 3 from the stator core 1, and part of the coil winding 3 protrudes out of two end faces of the stator core 1;
step B), manufacturing a foaming mold, combining the foaming mold with the stator core 1, enabling the side wall surface in the foaming mold to shield the opening of the wire embedding groove 121, and wrapping the coil winding 3 protruding from the two end surfaces of the stator core 1 by the two ends of the foaming mold;
and step C) performing a foam injection process in a cavity of the foaming mold to enable injection molding foaming materials to form an end foaming module 4, wherein the end foaming module 4 wraps the coil winding 3 protruding out of the end face of the stator core 1, the foaming materials further enter the slot 121 to form a slot foaming module 5, and the slot foaming module 5 wraps the middle part of the coil winding 3 in the slot 121.
The above embodiments are only preferred embodiments of the present invention, but the present invention is not limited thereto, and any other changes, modifications, substitutions, combinations, simplifications, which are made without departing from the spirit and principle of the present invention, are all equivalent replacements within the protection scope of the present invention.
Claims (6)
1. The utility model provides a stator insulation system, including stator core (1), slot insulator (2) and coil winding (3), stator core (1) is including yoke portion (11) and tooth portion (12), two adjacent tooth portions (12) form rule groove (121), at rule groove (121) inside mounting groove insulator (2), the middle part nestification of coil winding (3) is in rule groove (121) the inside, slot insulator (2) keep apart coil winding (3) and stator core (1), the both ends face protrusion of stator core (1) is followed in coil winding (3) of part, its characterized in that: directly injecting and molding a foaming material on at least one end face of the stator core (1) to form an end foaming module (4), wherein the end foaming module (4) wraps a part of the coil winding (3) protruding from one end face of the stator core (1);
end foaming modules (4) are directly formed on two end faces of the stator core (1) in an injection molding mode, and the end foaming modules (4) wrap coil windings (3) protruding from the two end faces of the stator core (1);
the foaming material also enters the embedding groove (121) to form a groove foaming module (5), and the groove foaming module (5) wraps the middle part of the coil winding (3) in the embedding groove (121);
the two end foaming modules (4) and the groove foaming module (5) form a whole body to wrap the whole coil winding (3).
2. A stator insulation structure according to claim 1, wherein: the end foaming module (4) extends to the end face of the stator core (1) and is attached to the end face.
3. A stator insulation structure according to claim 2, wherein: a plurality of axial grooves (13) distributed at intervals are formed in the outer side face of the stator core (1), and pits (41) are formed in the positions, corresponding to the axial grooves (13), on the end foaming modules (4).
4. A stator insulation structure according to claim 3, wherein: the end foaming module (4) is annular, the annular inner side face of the end foaming module (4) leans against the inner circle of the stator core (1), and the annular outer side face of the end foaming module (4) is located within the outer edge of the stator core (1).
5. An electric machine comprising a stator, a rotor, a shaft, bearings and a housing assembly, wherein a stator insulation is applied to the stator to isolate a stator core (1) from a coil winding (3), characterized in that: the stator insulation structure is the stator insulation structure according to any one of claims 1 to 4.
6. A manufacturing method of an insulation structure of a motor stator is characterized in that: the method comprises the following steps of,
step A), a slot insulation piece (2) is placed in a slot (121) of a stator core (1), then a coil winding (3) is wound on a tooth part (12) of the stator core (1), the middle part of the coil winding (3) is embedded in the slot (121), the coil winding (3) and the stator core (1) are isolated by the slot insulation piece (2), and part of the coil winding (3) protrudes out of two end faces of the stator core (1);
step B), manufacturing a foaming mold, combining the foaming mold with the stator core (1), enabling the side wall surface in the foaming mold to shield the opening of the wire embedding groove (121), and wrapping the coil winding (3) protruding from the two end surfaces of the stator core (1) by the two ends of the foaming mold;
and C) performing a foam injection process in a cavity of the foaming mold to enable the injection molding foaming material to form an end foaming module (4), wherein the end foaming module (4) wraps the coil winding (3) protruding from the end face of the stator core (1), the foaming material also enters the wire embedding groove (121) to form a groove foaming module (5), and the groove foaming module (5) wraps the middle part of the coil winding (3) in the wire embedding groove (121).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611077048.8A CN106533013B (en) | 2016-11-30 | 2016-11-30 | Motor stator insulation structure and manufacturing method thereof and motor applying motor stator insulation structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611077048.8A CN106533013B (en) | 2016-11-30 | 2016-11-30 | Motor stator insulation structure and manufacturing method thereof and motor applying motor stator insulation structure |
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| Publication Number | Publication Date |
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| CN106533013A CN106533013A (en) | 2017-03-22 |
| CN106533013B true CN106533013B (en) | 2020-01-03 |
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| CN201611077048.8A Active CN106533013B (en) | 2016-11-30 | 2016-11-30 | Motor stator insulation structure and manufacturing method thereof and motor applying motor stator insulation structure |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6680199B2 (en) * | 2016-12-27 | 2020-04-15 | トヨタ自動車株式会社 | Method for manufacturing stator of rotating electric machine |
| CN109245375B (en) * | 2018-10-19 | 2024-01-05 | 苏州源源机械设备有限公司 | Winding structure of low-torque motor of small wind driven generator |
| CN110311496A (en) * | 2019-07-04 | 2019-10-08 | 珠海凯邦电机制造有限公司 | A kind of plastic structure of stator, stator module, motor and air-conditioning |
| CN110544993B (en) * | 2019-08-23 | 2022-03-08 | 奇鋐科技股份有限公司 | Stator structure |
| CN110495842A (en) * | 2019-09-30 | 2019-11-26 | 江苏雷利电机股份有限公司 | Motor, water segregator and the dish-washing machine with the water segregator |
| CN112421897B (en) * | 2020-08-19 | 2024-04-12 | 沈阳工业大学 | Method for manufacturing stator core of yoke-free segmented armature axial flux motor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10322959A (en) * | 1997-05-19 | 1998-12-04 | Ebara Corp | Geared motor and manufacture thereof |
| CN203774920U (en) * | 2014-01-26 | 2014-08-13 | 广东威灵电机制造有限公司 | Motor and stator structure thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58192459A (en) * | 1982-05-06 | 1983-11-09 | Matsushita Electric Ind Co Ltd | Manufacture of resin-molded motor |
| JP6307876B2 (en) * | 2013-12-26 | 2018-04-11 | トヨタ自動車株式会社 | Stator and stator manufacturing method |
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2016
- 2016-11-30 CN CN201611077048.8A patent/CN106533013B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10322959A (en) * | 1997-05-19 | 1998-12-04 | Ebara Corp | Geared motor and manufacture thereof |
| CN203774920U (en) * | 2014-01-26 | 2014-08-13 | 广东威灵电机制造有限公司 | Motor and stator structure thereof |
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| CN106533013A (en) | 2017-03-22 |
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