CN113224864A - Stator and rotor comprising motor concentrated winding and winding method thereof - Google Patents

Stator and rotor comprising motor concentrated winding and winding method thereof Download PDF

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Publication number
CN113224864A
CN113224864A CN202110507560.6A CN202110507560A CN113224864A CN 113224864 A CN113224864 A CN 113224864A CN 202110507560 A CN202110507560 A CN 202110507560A CN 113224864 A CN113224864 A CN 113224864A
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CN
China
Prior art keywords
tooth head
die
winding
stator
yoke
Prior art date
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Pending
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CN202110507560.6A
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Chinese (zh)
Inventor
王健欢
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Changying Xinzhi Technology Co ltd
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Changying Xinzhi Technology Co ltd
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Publication date
Application filed by Changying Xinzhi Technology Co ltd filed Critical Changying Xinzhi Technology Co ltd
Priority to CN202110507560.6A priority Critical patent/CN113224864A/en
Publication of CN113224864A publication Critical patent/CN113224864A/en
Priority to PCT/CN2021/134035 priority patent/WO2022237133A1/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12Stationary parts of the magnetic circuit
    • H02K1/14Stator cores with salient poles
    • H02K1/146Stator cores with salient poles consisting of a generally annular yoke with salient poles
    • H02K1/148Sectional cores
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22Rotating parts of the magnetic circuit
    • H02K1/24Rotor cores with salient poles ; Variable reluctance rotors
    • H02K1/243Rotor cores with salient poles ; Variable reluctance rotors of the claw-pole type
    • 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
    • H02K15/04Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings, prior to mounting into machines
    • H02K15/0435Wound windings
    • H02K15/0442Loop windings
    • H02K15/045Form wound coils
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K3/00Details of windings
    • H02K3/46Fastening of windings on the stator or rotor structure
    • H02K3/52Fastening salient pole windings or connections thereto

Abstract

The invention discloses a stator and a rotor containing a motor concentrated winding and a winding method thereof, belonging to the technical field of motor stators and rotors and comprising tooth head splicing blocks (1) and yoke splicing blocks (2), wherein the tooth head splicing blocks (1) are positioned on the same circumferential line, every two adjacent tooth head splicing blocks (1) are connected by the yoke splicing blocks (2), tooth socket groove surfaces (6) are arranged at two sides of the tooth head splicing blocks (1), and lead wire grooves (5) are arranged on the yoke splicing blocks (2). The winding method of the invention can enable the surfaces of adjacent coil windings to be mutually crossed, can fully utilize the space in the tooth slot, and further can improve the slot filling rate of the stator and the rotor and improve the product quality.

Description

Stator and rotor comprising motor concentrated winding and winding method thereof
Technical Field
The invention belongs to the technical field of motor stators and rotors, and particularly relates to a stator or a rotor containing a motor concentrated winding, which is applied to the stator or the rotor, and a winding method for manufacturing the stator or the rotor containing the motor concentrated winding.
Background
The motor stator and the rotor are important components of a motor such as a driving machine, and generally include a tooth portion in which a coil is provided and a yoke portion. In the prior art, generally, stator or rotor punching sheets which are integrally punched and formed are manufactured firstly, the stator or rotor punching sheets are fixed with each other in a welding mode and the like, and then the formed stator or rotor is wound and installed.
In order to improve the slot fullness rate of a stator or a rotor, the chinese patent application No. 201910728716.6 on 08/2019 discloses a stator core, a wound stator, a concentrated winding motor and a production method thereof, wherein the stator core comprises: yoke portion structure and a plurality of tooth portion structure, yoke portion structure divide into a plurality of yoke portion structure section the same with tooth portion structure quantity, adopt tenon fourth of the twelve earthly branches connected mode with every yoke portion structure section and every tooth portion structure connection, a plurality of yoke portion structure sections end to end connection in proper order constitutes annular yoke portion structure of circle, a plurality of tooth portion structure are located same circumference. This stator core, wound-rotor stator, concentrated winding motor through inciting somebody to action the tooth structure and the yoke portion structure of wound-rotor stator are the isolating construction, demountable installation, adopt the foretell yoke portion structure of present stamping process preparation its current preparation that has reduced integrated into one piece's stator core's the technology degree of difficulty, the volume of scrapping of material when having reduced the preparation has reduced manufacturing cost.
However, the stator core, the wound stator, the concentrated winding motor and the production method have the advantages that the coil is directly wound on the stator core, the winding is not tight enough, and the insulating layers are arranged on the two sides of the stator core, so that the insulating layers are easily damaged during winding, and the quality of the motor is influenced.
Disclosure of Invention
The invention aims to solve the technical problems that in the prior art, a coil is directly wound on a stator core, the winding is not tight enough, an insulating layer is easy to damage during winding, and the quality of a motor is influenced, and provides a stator and a rotor which are convenient to process, can not damage a tooth part, can increase the slot fullness rate of the motor, and improve the product quality and contain a motor concentrated winding, wherein the stator and the rotor are provided with a plurality of coils; meanwhile, the invention also provides a winding method for manufacturing the stator and the rotor containing the concentrated winding of the motor.
In order to achieve the purpose, the invention provides a stator and a rotor containing a motor concentrated winding, which comprise tooth head splicing blocks for winding and placing coil windings and yoke splicing blocks for locking and fixing adjacent tooth head splicing blocks, wherein the tooth head splicing blocks comprise tooth head punching sheets, the yoke splicing blocks comprise yoke punching sheets, the tooth head splicing blocks and the yoke splicing blocks are correspondingly arranged and grouped, the tooth head splicing blocks are positioned on the same circumferential line, every two adjacent tooth head splicing blocks are connected through the yoke splicing blocks, tooth socket groove surfaces are arranged on two sides of the tooth head splicing blocks, splicing parts are arranged on the positions, opposite to the yoke splicing blocks, of the tooth socket groove surfaces, winding parts are arranged at the positions, where the coil windings are placed, and lead grooves for leading out lead wires are arranged at the positions, close to the tooth head, of the inner side surface of the yoke splicing blocks.
As a further improvement measure of the present invention, the above-mentioned stator and rotor including concentrated windings of the motor, the cross section of the lead slot is configured to be semicircular or square.
As a further improvement measure of the present invention, the stator and the rotor including the concentrated winding of the motor are provided, wherein two side tooth socket surfaces of the tooth head split are inclined, the inner side width of the tooth head split is greater than the outer side width of the tooth head split, two side locking surfaces of the yoke split are inclined, and the locking surfaces are matched with the splicing parts on the tooth socket surfaces.
As another improvement measure of the invention, the stator and the rotor comprising the motor concentrated winding are characterized in that the tooth socket groove surfaces on the two sides of the tooth head splicing block are parallel to each other, the inner width and the outer width of the tooth head splicing block are equal, the locking surfaces on the two sides of the yoke splicing block are arranged in an inclined shape, and the locking surfaces are matched with the splicing parts on the tooth socket groove surfaces.
As a further improvement measure of the invention, the stator and the rotor comprising the motor concentrated winding are characterized in that the splicing part is provided with a fixing groove, the width of a notch of the fixing groove is smaller than the width of the inside of the groove body, the locking surfaces on two sides of the yoke splicing block are provided with fixing blocks, and the fixing blocks are matched with the fixing groove.
As a further improvement measure of the present invention, in the above-mentioned stator and rotor including the concentrated winding of the motor, the inner surface of the tooth head splicing block is provided with a limiting surface, the limiting surface includes a first limiting surface and a second limiting surface, and the first limiting surface and the second limiting surface are arranged in an inclined shape and respectively form an obtuse angle with an included angle of the corresponding tooth socket surface.
As another improvement measure of the present invention, in the above stator and rotor including the concentrated winding of the motor, the inner surface of the tooth head split block is provided with a limiting surface, and the limiting surface is provided with an arc shape.
As a further improvement measure of the invention, the stator and the rotor comprising the motor concentrated winding are characterized in that a first buckling point is arranged on the tooth head punching sheet, adjacent tooth head punching sheets are fixedly connected by the first buckling point, a second buckling point is arranged on the yoke punching sheet, and adjacent yoke punching sheets are fixedly connected by the second buckling point.
A winding method for manufacturing the stator and the rotor containing the motor concentrated winding, wherein the winding method comprises the following steps:
step one, a mould manufacturing process; the die comprises a tooth head die, the tooth head die and the winding part of the tooth head splicing block are the same in size and shape, a sealing die is arranged at the end part of the tooth head die, a fixing part is arranged between the tooth head die and the sealing die, and a die groove corresponding to the position of the lead groove is arranged on the sealing die;
step two, assembling the die; connecting the cover sealing mould with the tooth head mould, and fixedly connecting the cover sealing mould with the tooth head mould by using a fixing piece;
step three, winding the winding coil; installing a mould on a winding machine, fixing, embedding a leading-out wire at one end of a winding coil into a mould groove, rotating the mould to wind a lead on a tooth head mould, simultaneously lifting the mould to enable the lead to sequentially cover the surface of the tooth head mould from top to bottom when the mould is rotated, and lowering the mould to enable the lead to continuously rotate on the outer layer of the wound coil when the coil completely covers the surface of the tooth head mould, so that the coil continuously covers the inner layer of the coil, and the process is repeated to enable the lead to be wound on the surface of the tooth head mould in an overlapping manner, and the winding arrangement is tight
Step four, the cross-line winding process; when the wire is wound to the last half turn, the wire is obliquely crossed over the coil to the top of the next layer, the position of the wire outlet end is changed, and the wire is cut off;
step five, demolding; loosening the fixing piece, separating a tooth head mould and a sealing cover mould in the mould, and separating the coil wound on the tooth head mould from the tooth head mould;
step six, fixing the coil; sleeving the coil wound in the tooth head die into the tooth head splicing block;
step seven, splicing the stator and the rotor; embedding the outgoing lines into lead grooves of the yoke segments, and fixedly connecting two adjacent tooth head segments by using the yoke segments to form a circular stator and a circular rotor;
step eight, a wire arranging process; and collecting and combining the outgoing wires in all the outgoing wire slots, collecting and combining the tail ends of all the coils, and combining according to the phase line requirements of the stator and rotor wires.
As a further improvement of the present invention, in the above winding method, in the first step, the shapes of the upper and lower end portions of the tooth head die further include the shapes of the insulating plates at the two end portions of the tooth head split.
Compared with the prior art, the invention has the beneficial effects that: 1. by arranging the tooth head splicing blocks and the yoke splicing blocks, a coil winding which is formed by winding can be directly sleeved on the tooth head splicing blocks, and then the adjacent tooth head splicing blocks are fixedly locked by the yoke splicing blocks, so that the insulating layer can be prevented from being damaged when the coil is wound, the product quality is improved, and the wound coil is compact, and the slot filling rate can be improved; 2. the lead wire grooves are formed in the yoke splicing blocks, so that lead wires at one ends of the coil windings are embedded in the lead wire grooves, invalid occupation in the grooves is reduced, and the groove fullness rate can be improved; 3. the winding method of the invention firstly winds the coil on the die, thus the winding coil is compact and the slot fullness rate can be improved; 4. the winding method of the invention can enable the surfaces of adjacent coil windings to be mutually crossed, can fully utilize the space in the tooth slot and further can improve the slot filling rate of the stator and the rotor.
Drawings
FIG. 1 is a plan view showing a state in which tooth segments and yoke segments are assembled according to the present invention.
Fig. 2 is a perspective view showing a state in which tooth segments and yoke segments are assembled according to the present invention.
Fig. 3 is a top view of the tooth head segment of the present invention.
Fig. 4 is a perspective view of the tooth head segment of the present invention.
Fig. 5 is a top view of a yoke segment of the present invention.
Fig. 6 is a perspective view of a yoke segment of the present invention.
Fig. 7 is a top view of the capping mold of the present invention.
Fig. 8 is a perspective view of the capping mold of the present invention.
Fig. 9 is a top view of the inventive tooth head die.
Fig. 10 is a perspective view of the tooth head mold of the present invention.
Fig. 11 is a sectional view showing a combination of a tooth head mold and a cap mold according to the present invention.
Fig. 12 is a sectional view showing a combined state of a coil, a tooth head segment and a yoke segment according to the present invention.
FIG. 13 is a flow chart of the winding method of the present invention.
The reference numbers illustrate: 1-splicing tooth heads; 2-yoke segments; 3-splicing part; 4-a winding part; 5-lead slot; 6-gullet surface; 7-locking surface; 8, fixing grooves; 9-fixing block; 10-a first projection; 11-void portion one; 12-void part two; 13-convex part two; 14-a first buckling point; 15-a second buckling point; 16-a tooth head mold; 17-capping the mould; 18-a mold slot; 19-a first through hole; 20-a second through hole; 21-a groove body; 22-a first limiting surface; and 23, a second limiting surface.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 to 6, the stator and the rotor including the concentrated winding of the motor include a tooth head splicing block 1 for winding and placing a coil winding and a yoke splicing block 2 for locking and fixing the adjacent tooth head splicing block 1, the tooth head splicing block 1 is composed of tooth head punching sheets, a first fastening point 14 is arranged on each tooth head punching sheet, and the upper and lower adjacent tooth head punching sheets are fixedly connected by the first fastening point 14, that is, a protrusion of the first fastening point 14 of the tooth head punching sheet arranged on the upper side is clamped into a groove of the first fastening point 14 of the tooth head punching sheet arranged on the lower side for compressing and fixing, so that the connection is firm; similarly, the yoke split 2 is composed of yoke punching sheets, the yoke punching sheets are provided with two buckling points 15, and the yoke punching sheets adjacent to each other up and down are fixedly connected by the two buckling points 15. The tooth head segments 1 are arranged into 12 groups, and the yoke segments 2 are correspondingly arranged into 12 groups. The tooth head splicing blocks 1 are arranged on the same circumferential line in a surrounding mode, every two adjacent tooth head splicing blocks 1 are connected through the yoke splicing block 2, tooth groove surfaces 6 are arranged on two sides of the tooth head splicing blocks 1, as a scheme, the tooth groove surfaces 6 on two sides of the tooth head splicing blocks 1 are arranged in an inclined mode, and the width of the inner side of each tooth head splicing block 1 is larger than that of the outer side of the tooth head splicing block; as another scheme, the tooth groove surfaces 6 on the two sides of the tooth head splicing block 1 are parallel to each other, and the inner side width and the outer side width of the tooth head splicing block 1 are equal; the splicing part 3 is arranged on the tooth socket groove surface 6 opposite to the yoke splicing block 2 and used for connecting the yoke splicing block 2, the locking surfaces 7 on two sides of the yoke splicing block 2 are arranged in an inclined shape, and the locking surfaces 7 are matched with the inclined surfaces of the splicing part 3 on the tooth socket groove surface 6; and a winding part 4 is arranged on the slot surface 6 of the tooth slot and used for placing coil windings.
For the convenience of connection, a fixing groove 8 is formed in the splicing portion 3, the width of a notch of the fixing groove 8 is smaller than the width of the inside of the groove body, if the shape of the cross section of the fixing groove 8 is trapezoidal or circular arc, fixing blocks 9 are arranged on the locking surfaces 7 on the two sides of the yoke splicing block 2, and the fixing blocks 9 are matched with the cross section of the fixing groove 8. During the use, the fixed block 9 of piece 2 one side is pieced together to the yoke portion is aligned with fixed slot 8 on the concatenation portion 3, follow the top down insert the tooth head piece together 1, can reach the fixed action that the piece 2 is pieced together to the yoke portion and piece 1 with the tooth head, align the fixed block 9 of opposite side and the fixed slot 8 on the concatenation portion 3 of adjacent tooth head piece together piece 1, follow the top down insert the tooth head piece together 1 in, can piece 2 and piece 1 fixed adjacent tooth head piece together piece with the yoke portion, so the mode, can piece 1 annular stator or the rotor of one-tenth of tooth head piece together piece with the yoke portion piece together 2 connection tooth head.
The lead wire groove 5 that is used for the wire to draw forth is set up near tooth head piece together 1 department at yoke portion piece together 2 medial surfaces, the cross-section of lead wire groove 5 sets up to semi-circle or square, in order to match different coils, the wire decision that specific shape used in according to the motor, use semi-circle in this embodiment, the lead-out wire setting of wire is in lead wire groove 5, play the position of fixed wire lead-out wire on the one hand, on the other hand, make the lead-out wire not occupy the spatial position between tooth head piece together 1, can improve the groove filling rate, yoke portion piece together 2 can play the effect of restriction coil position simultaneously.
The inner surface of the yoke part splicing block 2 is provided with a limiting surface, the limiting surface comprises a first limiting surface 22 and a second limiting surface 23, the first limiting surface 22 and the second limiting surface 23 are arranged in an inclined shape, and an included angle between the first limiting surface 22 and the second limiting surface 23 is an obtuse angle; of course, the inner side surface of the yoke part splicing block 2 is provided with a limiting surface, and the limiting surface can also be in an arc shape; the limiting surface is arranged, and the effect of fixing the coil winding can be achieved. The outer surface of the yoke segment 2 is arc-shaped, so that the whole spliced tooth head segment 1 and the yoke segment 2 form a circle.
As shown in fig. 13, the present invention provides a winding method for manufacturing a stator and a rotor including concentrated windings of a motor, including a first step of manufacturing a mold; step two, assembling the die; step three, winding the winding coil; step four, the cross-line winding process; step five, demolding; step six, fixing the coil; step seven, splicing the stator and the rotor; step eight, a wire arranging process; the specific method is that firstly, a die is manufactured, as shown in fig. 1, fig. 2, and fig. 7 to fig. 12, the die comprises a tooth head die 16 and a cover die 17, the tooth head die 16 and the winding part 4 in the tooth head splicing block 1 are the same in size and shape, the cover die 17 is fixed at the end part of the tooth head die 16, a groove body 21 is arranged at the position of the cover die 17I opposite to the tooth head die 16, a through hole II 20 is arranged on the groove body 21, one end of the tooth head die 16 is clamped in the groove body 21 of the cover die 17, a through hole I19 is arranged on the tooth head die 16, an internal thread is arranged in the through hole I19, the through hole I19 is opposite to the through hole II 20, a screw passes through the through hole II 20 and the through hole I19, and the tooth head die 16 and the cover die 17 are fixedly connected. A die groove 18 corresponding to the lead groove 5 is provided on the capping die 17 near the tooth head die 16.
Then the mould is installed on a winding machine for fixing, an outgoing line at one end of a winding coil is embedded into a mould groove 18, the mould is rotated to enable the conducting wire to be wound on a tooth head mould 16, when the mould is rotated, the mould is lifted simultaneously to enable the conducting wire to sequentially cover the surface of the tooth head mould 16 from top to bottom, when the surface of the tooth head mould 16 is completely covered by the coil, a first layer of coil is formed, at the moment, the mould is lowered to enable the conducting wire to continuously revolve on the outer layer of the wound first layer of coil, the coil is continuously covered on the first layer of coil to form a second layer of coil, then the mould is lifted, the conducting wire is continuously wound on the outer side of the second layer of coil to form a third layer of coil, and the circulation is carried out, the conducting wire is wound on the surface of the tooth head mould 16 in an overlapping mode, and therefore, the winding arrangement is tight. When the wire is wound to the last half turn, the wire is obliquely crossed from the end part of the coil to the top of the outermost layer, the position of the wire outlet end is changed, and the wire is cut off.
Then loosening the fixing piece, separating the tooth head mould 16 and the cover mould 17 in the mould, and separating the coil wound on the tooth head mould 16 from the tooth head mould 16; sleeving the coils wound in the tooth head die 16 into the tooth head split blocks 1 respectively; two adjacent tooth head split blocks 1 are fixedly connected by a yoke split block 2, and lead wires are embedded into lead slots 5 of the yoke split block 2 to form a circular stator and a circular rotor. According to the winding obtained by the method, the first convex part 10 and the first gap part 11 are formed on one side of the coil at the bottom of the tooth head splicing block 1, the second gap part 12 and the second convex part 13 are formed on one side of the coil at the upper part, so that after two adjacent groups of tooth head splicing blocks 1 are combined, the first convex part 10 at the bottom of the adjacent coil is opposite to the first gap part 11 at the bottom of the other coil, and the second gap part 12 at the upper part of the adjacent coil is opposite to the second convex part 13 at the upper part of the other coil, so that the space of a groove body between the tooth head splicing blocks 1 can be fully utilized, and the groove filling rate is improved.
And finally, collecting and combining the outgoing wires in all the outgoing wire slots 5, collecting and combining the tail ends of all the coils, and combining according to the phase line requirements of the stator and rotor wires to form a complete stator or rotor.
By using the method, thicker winding coils, whether round or square, can be wound more tightly without damaging the stator and the rotor and wires, so that the slot filling rate of the stator and the rotor is improved, and the product quality is improved.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and it will be apparent to those skilled in the art that several modifications and improvements may be made without departing from the present invention, and these should be construed as falling within the scope of the present invention.

Claims (10)

1. The utility model provides a stator, rotor that contain motor concentrated winding, its characterized in that, stator, rotor including be used for the winding to place coil winding's tooth head piece together piece (1) and be used for locking the yoke portion piece together piece (2) of fixing adjacent tooth head piece together piece (1), tooth head piece together piece (1) constitute by the tooth head piece, yoke portion piece together piece (2) comprises the yoke portion piece, tooth head piece together piece (1) and yoke portion piece together piece (2) corresponding setting 6-48 group, tooth head piece together piece (1) be located same circumference, two liang of adjacent tooth head piece together piece (1) between connect through yoke portion piece (2), tooth head piece together piece (1) both sides be provided with tooth space slot face (6), tooth space slot face (6) on with yoke portion of piecing together piece (2) relative department set up concatenation portion (3), tooth space slot face (6) on be used for placing coil winding department and set up wire winding portion (4), and a lead groove (5) for leading out a lead is arranged on the inner side surface of the yoke section (2) close to the tooth head section (1).
2. A stator and a rotor comprising concentrated windings of an electric machine according to claim 1, characterized in that the cross-section of the lead slots (5) is arranged to be semicircular or square.
3. The stator and the rotor comprising the concentrated winding of the motor according to claim 2, wherein the slot surfaces (6) at both sides of the tooth head segment (1) are arranged to be inclined, the inside width of the tooth head segment (1) is greater than the outside width, the locking surfaces (7) at both sides of the yoke segment (2) are arranged to be inclined, and the locking surfaces (7) are matched with the splicing parts (3) on the slot surfaces (6).
4. The stator and the rotor comprising the concentrated winding of the motor according to claim 2, wherein the slot surfaces (6) at the two sides of the tooth head segment (1) are parallel to each other, the inside width and the outside width of the tooth head segment (1) are equal, the locking surfaces (7) at the two sides of the yoke segment (2) are arranged in an inclined shape, and the locking surfaces (7) are matched with the splicing parts (3) on the slot surfaces (6).
5. The stator and the rotor comprising the motor concentrated winding according to claim 3 or 4, wherein the splicing part (3) is provided with a fixing groove (8), the width of a notch of the fixing groove (8) is smaller than the width of the inside of the slot body, the locking surfaces (7) on two sides of the yoke splicing block (2) are provided with fixing blocks (9), and the fixing blocks (9) are matched with the fixing grooves (8).
6. The stator and the rotor comprising the concentrated winding of the motor according to claim 5, wherein the inner surface of the yoke segment 2 is provided with a limiting surface, the limiting surface comprises a first limiting surface (12) and a second limiting surface (13), and an included angle between the first limiting surface (12) and the second limiting surface (13) is an obtuse angle.
7. The stator and the rotor comprising the concentrated winding of the motor according to claim 5, wherein the inner surface of the yoke segment 2 is provided with a limiting surface, and the limiting surface is provided with an arc shape.
8. The stator and the rotor comprising the concentrated winding of the motor are characterized in that a first buckling point (14) is arranged on each tooth head punching sheet, adjacent tooth head punching sheets are fixedly connected through the first buckling point (14), a second buckling point (15) is arranged on each yoke punching sheet, and adjacent yoke punching sheets are fixedly connected through the second buckling point (15).
9. A winding method for manufacturing a stator and a rotor containing concentrated windings of a motor according to any one of claims 1 to 8, wherein the winding method comprises the following steps:
step one, a mould manufacturing process; the die comprises a tooth head die (16), the tooth head die (16) and a winding part (4) of the tooth head splicing block (1) are the same in size and shape, a cover die (17) is arranged at the end part of the tooth head die (16), a fixing piece is arranged between the tooth head die (16) and the cover die (17), and a die groove (18) corresponding to the lead groove (5) is arranged on the cover die (17);
step two, assembling the die; connecting the cover sealing mould (17) with the tooth head mould (16), and fixedly connecting the cover sealing mould (17) with the tooth head mould (16) by using a fixing piece;
step three, winding the winding coil; installing a die on a winding machine, fixing, embedding a leading-out wire at one end of a winding coil into a die groove (18), rotating the die to enable a lead to be wound on a tooth head die (16), simultaneously lifting the die to enable the lead to sequentially cover the surface of the tooth head die (16) from top to bottom when the die is rotated, descending the die to enable the lead to continuously revolve on the outer layer of the wound coil when the coil completely covers the surface of the tooth head die (16) to enable the coil to continuously cover the inner layer coil, circulating the above steps to enable the lead to be wound on the surface of the tooth head die (16) in an overlapping mode, and enabling the winding arrangement to be tight;
step four, the cross-line winding process; when the wire is wound to the last half turn, the wire obliquely crosses the end part of the wire coil to the top of the next layer, the position of the wire outlet end is changed, and the wire is cut off;
step five, demolding; loosening the fixing piece, separating a tooth head die (16) and a cover die (17) in the die, and separating the coil wound on the tooth head die (16) from the tooth head die (16);
step six, fixing the coil; sleeving the coil wound in the tooth head die (16) into the tooth head splicing block (1);
step seven, splicing the stator and the rotor; leading-out wires are embedded into lead slots (5) of the yoke segments (2), and the adjacent two tooth head segments (1) are fixedly connected by the yoke segments (2) to form a circular stator and a circular rotor;
step eight, a wire arranging process; and collecting and combining the outgoing lines in all the lead slots (5), collecting and combining the tail ends of all the coils, and combining according to the phase line requirements of the stator and rotor leads.
10. The winding method according to claim 9, wherein in the first step, the shapes of the upper and lower end portions of the tooth head die (16) further include the shapes of the insulating plates at the two end portions of the tooth head segment (1).
CN202110507560.6A 2021-05-10 2021-05-10 Stator and rotor comprising motor concentrated winding and winding method thereof Pending CN113224864A (en)

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Application Number Priority Date Filing Date Title
CN202110507560.6A CN113224864A (en) 2021-05-10 2021-05-10 Stator and rotor comprising motor concentrated winding and winding method thereof
PCT/CN2021/134035 WO2022237133A1 (en) 2021-05-10 2021-11-29 Stator and rotor comprising motor concentrated winding, and winding method therefor

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Application Number Priority Date Filing Date Title
CN202110507560.6A CN113224864A (en) 2021-05-10 2021-05-10 Stator and rotor comprising motor concentrated winding and winding method thereof

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022237133A1 (en) * 2021-05-10 2022-11-17 长鹰信质科技股份有限公司 Stator and rotor comprising motor concentrated winding, and winding method therefor
CN116526708A (en) * 2023-07-03 2023-08-01 北京精雕科技集团有限公司 Stator core, stator, motor and manufacturing process

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Publication number Priority date Publication date Assignee Title
WO2022237133A1 (en) * 2021-05-10 2022-11-17 长鹰信质科技股份有限公司 Stator and rotor comprising motor concentrated winding, and winding method therefor
CN116526708A (en) * 2023-07-03 2023-08-01 北京精雕科技集团有限公司 Stator core, stator, motor and manufacturing process
CN116526708B (en) * 2023-07-03 2023-09-26 北京精雕科技集团有限公司 Stator core, stator, motor and manufacturing process

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