WO2016078028A1 - Stator manufacturing method and stator - Google Patents
Stator manufacturing method and stator Download PDFInfo
- Publication number
- WO2016078028A1 WO2016078028A1 PCT/CN2014/091593 CN2014091593W WO2016078028A1 WO 2016078028 A1 WO2016078028 A1 WO 2016078028A1 CN 2014091593 W CN2014091593 W CN 2014091593W WO 2016078028 A1 WO2016078028 A1 WO 2016078028A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- stator
- split
- yoke
- manufacturing
- teeth
- Prior art date
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Classifications
-
- 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
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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
Definitions
- the invention belongs to the field of electric machines, and in particular relates to a method for manufacturing a stator and a stator produced by the method.
- a conventional manufacturing method of the motor stator is such that the stator punch is integrally punched out, and then the stator punch is laminated to form an integral stator core, and then the winding is wound on the integral stator core by a winding machine.
- the conventional manufacturing method of the stator has the following drawbacks in specific applications: due to the limitation of the winding space requirement, the slot full rate is not high, and the slot opening on the stator core needs to be designed to be large, thereby affecting Improvement in motor performance.
- the object of the present invention is to overcome the deficiencies of the prior art described above, and to provide a method for manufacturing a stator and a stator, which solves the problem that the accuracy of the stator roundness is reduced due to the split design of the stator core of the prior art, and the assembly process is complicated after the winding is completed. problem.
- the technical solution adopted by the present invention is: a method for manufacturing a stator, comprising the following steps:
- each of the splits around each of the divided winding coils is axially laminated to form the stator in such a manner that each of the stator teeth is offset from each other.
- the number of the split bodies in the core split manufacturing step, is at least three, and each of the split bodies has a circumferential seal and a thickness smaller than The sub-yoke of the thickness of the stator core and the at least one stator tooth provided on the sub-yoke and having a thickness equal to the thickness of the stator core;
- each of the split bodies is assembled in the axial direction in such a manner that each of the stator teeth is mutually offset, and adjacent sides of one of the stator teeth of any one of the split bodies are provided. They are respectively two of the stator teeth on the other two of the split bodies.
- the sum of the number of the stator teeth of the stator core is an integral multiple of three, the integer multiple is greater than or equal to one time, and in the core split manufacturing step, the split The number is three.
- the sum of the number of the stator teeth of the stator core is an even number greater than two, and in the core split manufacturing step, the number of the splits is made to be an even number greater than two.
- the number of the split bodies in the core split manufacturing step, is two, and one of the split bodies has a first yoke that is circumferentially closed. And a plurality of first teeth spaced apart from each other on the first yoke in a circumferential direction, such that the other of the split bodies has a second yoke that is circumferentially closed and a plurality of circumferentially spaced apart at the second a second tooth on the sub-yoke; at the same time, the sum of the thickness of the first yoke and the thickness of the second yoke, the thickness of the first tooth, and the thickness of the second tooth are equal to The thickness of the stator core;
- the first split body and the second split body are assembled in an axially stacked manner in such a manner that each of the first teeth and each of the second teeth are respectively shifted from each other and alternately arranged.
- the number of the split bodies in the core split manufacturing step, is equal to the number of stator teeth on the stator core, and each of the split bodies has a sub-yoke circumferentially closed and having a thickness smaller than a thickness of the stator core and a stator tooth provided on the sub-yoke such that a sum of thicknesses of the sub-yokes is equal to the stator core thickness of;
- each of the split bodies is assembled in the axial direction in such a manner that each of the stator teeth is shifted from each other.
- the thicknesses of the sub-yokes of each of the split bodies are equal.
- the first unit and the second unit are separately fabricated, and the first unit has the first yoke and the first portion having a thickness equal to the thickness of the yoke a second unit having a second thickness of the second unit having a thickness equal to a thickness of the first tooth; the first unit and the second unit being axially A laminated connection forms the split body.
- the first unit is formed by laminating a plurality of first punches
- the second unit is formed by stacking a plurality of second punches
- the first punching piece has a yoke piece and a first tooth piece integrally coupled to the yoke piece, such that the second punching piece has a second tooth piece.
- the first punching piece and the second punching piece are punched out on the same punching material, and the first tooth piece and the second piece are made A tooth piece is formed in a circumferential direction around the yoke piece.
- the assembling step when assembling each of the split bodies, fixing the sub-yoke on any of the split bodies to the stator teeth on the remaining split bodies by welding or plastic sealing Or the insulating frame is fixed or the snap connection is connected to each other.
- the present invention also provides a stator which is manufactured by the above-described method of manufacturing a stator.
- the manufacturing method of the stator provided by the present invention and the stator manufactured by the manufacturing method are separately processed and wound by dividing the stator core into at least two separate bodies in the axial direction, and then the respective wound bodies along the winding are completed.
- the axial direction is formed by laminating the stator teeth in a staggered manner to form an integral stator, which effectively realizes the production of the stator. Since the adjacent sides of one stator tooth of any one of the stators after the assembly is completed are two stator teeth on the other split body, that is, the stator teeth of the same split body on the assembled stator are not adjacently arranged.
- any one of the stator teeth on each of the split bodies before assembly has a large movable space, so that the windings on the stator teeth of each split body can have a larger winding space, so that
- it is beneficial to improve the winding efficiency of the stator core on the other hand, it is beneficial to increase the slot full rate of the stator, and on the premise of improving the groove full rate, the copper wire constituting the stator winding can be changed into an aluminum wire, which is beneficial to save the stator.
- the material cost; on the other hand, the slot opening on the stator core can be designed to be small, improving the performance of the motor.
- each of the sub-yokes is circumferentially closed and the split bodies are assembled in the axial direction, the roundness precision of the stator is ensured, and welding is not required between the split bodies, which simplifies the assembly process. In turn, it is beneficial to improve the production efficiency of the stator.
- FIG. 1 is an exploded perspective view of a stator core of a three-slot inner rotor motor according to a first embodiment of the present invention
- FIG. 2 is a schematic view showing the assembly of a stator core of a three-slot inner rotor motor according to Embodiment 1 of the present invention
- FIG. 3 is a schematic view showing the winding coils of the three-slot inner rotor motor respectively wound on the stator teeth according to the first embodiment of the present invention
- FIG. 4 is an exploded perspective view showing a split body of a three-slot inner rotor motor according to Embodiment 1 of the present invention
- FIG. 5 is an exploded perspective view of a stator core of a four-slot inner rotor motor according to Embodiment 1 of the present invention.
- FIG. 6 is a schematic view showing the assembly of a stator core of a four-slot inner rotor motor according to Embodiment 1 of the present invention
- FIG. 7 is an exploded perspective view showing a stator core of a nine-slot inner rotor motor according to Embodiment 1 of the present invention.
- FIG. 8 is a schematic view showing the assembly of a stator core of a nine-slot inner rotor motor according to a first embodiment of the present invention
- FIG. 9 is an exploded perspective view showing a stator core of a four-slot inner rotor motor according to a second embodiment of the present invention.
- FIG. 10 is a schematic view showing the assembly of a stator core of a four-slot inner rotor motor according to a second embodiment of the present invention.
- FIG. 11 is a schematic view showing the winding of each of the partial winding coils of the four-slot inner rotor motor in each of the separate bodies according to the second embodiment of the present invention
- FIG. 12 is a schematic view showing the winding of each of the partial winding coils of the four-slot inner rotor motor provided on each of the split bodies according to the second embodiment of the present invention
- FIG. 13 is an exploded perspective view showing a stator core of a six-slot inner rotor motor according to a second embodiment of the present invention.
- FIG. 14 is a schematic view showing the assembly of a stator core of a six-slot inner rotor motor according to a second embodiment of the present invention.
- FIG. 15 is an exploded perspective view showing a stator core of a twelve-slot inner rotor motor according to a second embodiment of the present invention.
- 16 is a schematic view showing the assembly of a stator core of a twelve-slot inner rotor motor according to a second embodiment of the present invention.
- FIG. 17 is an exploded perspective view showing a stator core of a twelve-slot outer rotor motor according to a second embodiment of the present invention.
- FIG. 18 is a schematic view showing the assembly of a stator core of a twelve-slot outer rotor motor according to a second embodiment of the present invention.
- FIG. 19 is an exploded perspective view showing a stator core of a three-slot inner rotor motor according to a third embodiment of the present invention.
- FIG. 20 is a schematic view showing the assembly of a stator core of a three-slot inner rotor motor according to a third embodiment of the present invention.
- 21 is a schematic view showing the winding coils of the three-slot inner rotor motor respectively wound on the respective split bodies according to the third embodiment of the present invention.
- FIG. 22 is an exploded perspective view showing a stator core of a four-slot inner rotor motor according to a third embodiment of the present invention.
- FIG. 23 is a schematic view showing the assembly of a stator core of a four-slot inner rotor motor according to a third embodiment of the present invention.
- Embodiment 1 is a diagrammatic representation of Embodiment 1:
- a method for manufacturing a stator according to Embodiment 1 of the present invention includes the following steps:
- each of the split bodies 11a capable of axially laminating to form the stator core 1a are manufactured, and each of the split bodies 11a has a circumferential seal and a thickness (axial thickness) smaller than that of the stator core 1a. a thickness of the sub-yoke 111a and at least one stator tooth 112a provided on the sub-yoke 111a;
- a winding step respectively, a sub-winding is formed on each of the split bodies 11a, and the sub-winding coils 2a are respectively formed on the sub-tooth of each of the split bodies 11a;
- each of the split bodies 11a around which the respective split windings 2a are wound is axially laminated to form a stator in such a manner that the stator teeth 112a are respectively shifted and alternately arranged, and one stator tooth 112a of any one of the split bodies 11a is formed.
- the adjacent sides are respectively two stator teeth 112a on the other split body 11a or two stator teeth 112a on the other two split bodies 11a.
- each of the divided bodies 11a is laminated and assembled into a stator core 1a, and each of the divided winding coils 2a is connected in series or in parallel to form a stator winding.
- any two adjacent stator teeth 112a are enclosed to form a wire groove 100a.
- each of the stator teeth 112a of each of the split bodies 11a is separately wound (wrap around the sub-winding), and then the wound partial bodies 11a are respectively axially coupled to each other by the stator teeth 112a.
- the staggered form is laminated to form an integral stator. Since the adjacent sides of one stator tooth 112a of any one of the split bodies 11a on the assembled stator are the two stator teeth 112a on the other split bodies 11a, that is, the stator teeth 112a of the same split body 11a on the assembled stator.
- any one of the stator teeth 112a on each of the split bodies 11a before assembly has a large movable space, so that the stator teeth separately in each of the split bodies 11a
- the winding wire 112a can have a large winding space, so that on the one hand, the winding efficiency of the stator core 1a is improved, and on the other hand, the slot fullness rate of the stator is improved, and under the premise that the groove full rate is improved,
- the copper wire constituting the stator winding can be changed to an aluminum wire to save the material cost of the stator; on the other hand, the opening of the wire groove 100a on the stator core 1a can be designed to be small, and even the wire groove 100a can be designed to be approximately closed.
- each of the sub-yokes 111a is circumferentially closed, the accuracy of the roundness of the stator is ensured, and welding between the split bodies 11a is not required, which simplifies the subsequent assembly process after the winding is completed, thereby facilitating the improvement of the stator. Production efficiency.
- each of the partial winding coils 2a can be a series winding (that is, a series connection between the respective winding coils 2a) or a parallel winding. (ie, the sub-winding coils 2a are connected in parallel).
- the number of the split bodies 11a is at least three, and each of the split bodies 11a has a circumferential seal and a thickness smaller than that.
- a sub-yoke 111a having a thickness of the stator core 1a and at least one stator tooth provided on the sub-yoke 111a and having a thickness equal to the thickness of the stator core 1a 112a;
- each of the split bodies 11a is assembled in the axial direction in such a manner that the stator teeth 112a are offset from each other, and the adjacent sides of one stator tooth 112a of any one of the split bodies 11a are respectively two points. body Two stator teeth 112a on 11a.
- each of the sub-yokes 111a is circumferentially closed, the accuracy of the roundness of the stator is ensured, and welding is not required between the split bodies 11a, which simplifies the subsequent assembly process after the winding is completed. In turn, it is beneficial to improve the production efficiency of the stator.
- the thicknesses of the sub-yokes 111a of the respective split bodies 11a are made equal, and the number of the stator teeth 112a on each of the split bodies 11a is made equal.
- the stator provided by the embodiment of the present invention can be applied to an inner rotor motor (the rotor is disposed on the outer side of the stator) or can be applied to the outer rotor motor (the rotor is disposed on the outer side of the stator).
- the sub-yoke 111a has an inner side wall 1111a and an outer side wall 1112a.
- each of the stator teeth 112a is respectively disposed on the inner side wall 1111a of each of the sub-yokes 111a; when the stator is applied to the outer rotor motor When on, each stator tooth 112a are respectively disposed on the outer side wall 1112a of each of the sub-yokes 111a.
- the split body 11a when the sum of the number of the stator teeth 112a on the stator core 1a is an integral multiple of three, and the integral multiple is greater than or equal to one time, the split body 11a The number is set to three.
- the thicknesses of the sub-yokes 111a of the three split bodies 11a are equal, and the number of the stator teeth 112a on the three split bodies 11a are equal, that is, the thickness of the sub-yoke 111a of the three split bodies 11a is the stator core 1a.
- the number of stator teeth 112a of the three split bodies 11a is one-third of the total number of stator teeth 112a of the stator core 1a, for example, when the motor is a three-slot motor (the number of the line slots 100a is three)
- the number of stator teeth 112a is three
- the number of the split bodies 11a is set to three, each of the split bodies 11a includes one sub-yoke 111a and one stator tooth 112a; when the motor is a six-slot motor, the split body The number of 11a is set to three, and each split 11a includes a sub-yoke 111a and two stator teeth 112a; when the motor is a nine-slot motor, the number of the split bodies 11a is set to three, and each of the split bodies 11a includes one sub-yoke 111a and three stator teeth 112a.
- the integral stator core 1a (the stator core 1a assembled by each of the split bodies 11a), the adjacent sides of one stator tooth 112a of any one of the split bodies 11a are respectively the stator teeth 112a on the other two split bodies 11a, thereby making any one One stator tooth 112a of the split body 11a has a large space on both sides (both having at least two slots 100a), which ensures the convenience of winding the individual wires 11a, and ensures the winding of the stator. Efficiency and slot full rate.
- the present embodiment can minimize the number of the split bodies 11a forming the stator core 1a under the premise of ensuring that the individual windings 11a are individually wound (the winding space is sufficiently large), thereby facilitating the reduction of the respective split bodies 11a. Assembly time, which in turn helps to improve the production efficiency of the stator.
- the number of the split bodies 11a when the sum of the number of the stator teeth 112a on the stator core 1a is an even number greater than two, the number of the split bodies 11a is an even number greater than two.
- the number of the split bodies 11a may be set to an even number greater than two or may be set to three.
- the thicknesses of the sub-yokes 111a of the respective split bodies 11a are equal, and the number of the stator teeth 112a on each of the split bodies 11a are equal, for example, when the motor is a four-slot motor (the number of the wires 100a is four).
- the number of the split bodies 11a can be set to four or two; when the motor is a six-slot motor, the number of the split bodies 11a can be set to two or three; when the motor is an eight-slot motor, the number of the split bodies 11a can be Set to eight or four or two.
- the adjacent sides of one stator tooth 112a of any one of the split bodies 11a may be another split body 11a, respectively.
- the two stator teeth 112a are the two stator teeth 112a of the other two split bodies 11a, so that any one of the splits
- a stator tooth 112a of 11a has a large space on both sides, which ensures the convenience of winding the individual wires on each of the split bodies 11a, and is advantageous for ensuring the winding efficiency and the slot full rate of the stator.
- the first unit and the second unit are separately fabricated, and the first unit has the sub-yoke 111a and the first split tooth 1121a having a thickness equal to the thickness of the sub-yoke 111a, so that the second The unit has a second dividing tooth 1122a having a thickness equal to the thickness of the first dividing tooth 1121a and equal to the thickness of the stator tooth 112a; the first unit and the second unit are then axially laminated to form a split body.
- the stator teeth 112a are divided into two parts: a first partial tooth 1121a and a second partial tooth 1122a, and the first partial teeth 1121a and the sub-yoke are formed.
- the thicknesses of 111a are uniform and processed together, which facilitates the simplification of the manufacturing process of each of the bodies 11a, thereby facilitating the improvement of the manufacturing efficiency of each of the bodies 11a.
- each of the second partial teeth 1122a is respectively laminated and fixed on each of the first partial teeth 1121a by riveting or laser welding or glue bonding to form the stator teeth 112a, and the installation process is simple and the fastening is reliable.
- each of the divided bodies 11a forming the stator core 1a includes two end-side splits respectively located at both ends of the stator core 1a in the axial direction.
- the tooth 1122a includes two portions respectively located on opposite sides of the first split tooth 1121a thereof, and the second split tooth of the intermediate split 11a when the intermediate split 11a is manufactured
- the two portions of 1122a are respectively press-fitted to their first split teeth 1121a from both sides of their first split teeth 1121a.
- the first unit is formed by laminating a plurality of first punching sheets (not shown), and the second unit is laminated by a plurality of second punching sheets (not shown). And forming the first punching piece with the yoke piece and the first tooth piece integrally connected to the yoke piece, so that the second punching piece has the second tooth piece.
- the first yoke 111a and the first dividing teeth 1121a are formed by laminating a plurality of first punching sheets formed by integral punching
- the second dividing teeth 1122a are formed by a plurality of second punching sheets integrally formed by punching.
- the manufacturing process of the first punching piece and the second punching piece is very simple, high in manufacturing efficiency, and suitable for mass production.
- the manufacturing process simplifies the manufacturing process of each of the bodies 11a, and improves the manufacturing efficiency of each of the bodies 11a.
- the circumferentially closed sub-yokes 111a are integrally formed and stamped with the respective first teeth 1121a, the roundness accuracy of the stator core 1a finally formed by the respective split bodies 11a is effectively ensured.
- the first punching piece and the second punching piece are punched out on the same punching material, and the first tooth piece and the second tooth piece are circumferentially punched around the yoke piece. form.
- the utilization rate of the raw materials is improved, and the manufacturing efficiency of the first punching sheet and the second punching sheet is improved.
- the stator when the stator is applied to the inner rotor motor, the first tooth piece and the second tooth piece are punched in the circumferential direction to be formed on the inner side of the yoke piece, and after the punching is formed, the first tooth piece and the yoke piece are kept connected, The two tooth pieces are disconnected from the yoke piece; when the stator is applied to the outer rotor motor, the first tooth piece and the second tooth piece are punched in the circumferential direction to be formed on the outer side of the yoke piece, and after the blank forming, the first tooth piece and the first tooth piece are The yoke remains connected and forms a first punch, the second blade being disconnected from the yoke and forming a second punch.
- the sub-yoke 111a on any of the split bodies 11a and the second split teeth 1122a on the remaining split bodies 11a are fixed by welding or plastic fixing or insulating frames or The snap connection is connected to each other.
- the fastening connection of each of the sub-yokes 111a on the 11a ensures the stable reliability of the connection between the respective sub-pieces 11a.
- the sub-yoke 111a on any of the split bodies 11a and the second split teeth 1122a on the remaining split bodies 11a are connected to each other by a snap connection.
- the first yoke 101a is provided with a first slot 101a
- the second slot 1122a of the stator teeth 112a is provided with a first boss 102a
- each of the splits 11a passes through the first slot 101a and the first protrusion respectively.
- the card insertion and fastening connection of the table 102a is such that, by the engagement of the first boss 102a with the first card slot 101a, the second partial teeth 1122a and the remaining split bodies 11a on any of the split bodies 11a can be effectively realized.
- Sub-yoke a snap connection of the 111a; or a second boss (not shown) is disposed on the sub-yoke 111a, and a second slot (not shown) is disposed on the second splitting tooth 1122a of the stator tooth 112a, and each of the splits 11a
- the connection between the second card slot and the second boss is fastened through the second card slot, so that the second branch of any of the split bodies 11a can be effectively realized by the card insertion and insertion of the second boss and the second card slot.
- the teeth 1122a are snap-fitted to the respective sub-yokes 111a on the remaining split bodies 11a.
- the first card slot 101a includes a notch 1011a of equal width and recessed on the sub-yoke 111a, Along the slot 1011a, the recessed shoulder 1012a is inclined toward the sub-yoke 111a in a gradually increasing width, and the groove bottom 1013a is recessed toward the sub-yoke 111a at a constant width along the shoulder 1012a.
- the first boss 102a includes The bottom 1021a having a width protruding from the second dividing tooth 1122a and engaging with the notch 1011 is obliquely protruded away from the second dividing tooth 1122a along the bottom of the base 1021a in a gradually increasing width and is matched with the shoulder 1012a. a shoulder 1022a, a body extending along the shoulder 1022a in a direction away from the second dividing tooth 1122a and engaging the groove bottom 1013a 1023a, in this way, the card-fitting connection of the first card slot 101a and the first boss 102a can be realized.
- the first card slot 101a and the first boss 102a may further include a groove tail (not shown) which is recessed toward the sub-yoke 111a at an equal position along the intermediate position of the groove bottom 1013a; the first boss In addition to the base 1021a, the shoulder 1022a and the platform 1023a, the 102a may further include a top (not shown) which is disposed on the table body 1023a and has a width corresponding to the groove tail along the intermediate position of the table body 1023a. This embodiment facilitates further improving the fastening reliability of the first boss 102a being engaged with the first card slot 101a.
- the first card slot 101a and the first boss 102a may further include a protrusion at the bottom of the groove. a positioning protrusion (not shown) in 1013a; the first boss 102a includes the above-mentioned base 1021a and the shoulder
- the 1022a and the body 1023a may further include a positioning groove (not shown) recessed on the table body 1023a and engaging with the positioning protrusion.
- This embodiment also facilitates further improving the fastening reliability of the first boss 102a being engaged with the first card slot 101a.
- the first card slot 101a and the first boss 102a may also be configured to be in a mutually inserted manner.
- the present invention also provides a stator which is manufactured by the above-described method of manufacturing a stator.
- the stator specifically includes the stator core 1a described above and a stator winding wound around the stator core 1a.
- the stator winding includes a number of winding coils 2a of the same number as the split body 11a, and the respective winding coils 2a are respectively wound around the respective split bodies.
- 11a is on the stator teeth 112a. Since it is manufactured by the above-described manufacturing method of the stator, on the one hand, the production efficiency of the stator is improved, on the other hand, the performance of the stator is improved, and on the other hand, the material cost of the stator is reduced.
- Embodiment 2 is a diagrammatic representation of Embodiment 1:
- the number of the split bodies 11b is two, and one of the split bodies 11b has a circumferentially closed state.
- a sub-yoke 111b and a plurality of first teeth 112b spaced apart from each other on the first sub-yoke 111b in the circumferential direction to make another split 11 has a second yoke 121b circumferentially closed and a plurality of second teeth 122b circumferentially spaced apart from each other on the second yoke 121b; at the same time, the thickness of the first yoke 111b and the thickness of the second yoke 121b
- the sum of the thickness of the first tooth 112b and the thickness of the second tooth 122b are equal to the thickness of the stator core 1b; in the winding step, the first winding coil 201b is wound on the first tooth 112b and the second tooth 122b, respectively.
- the present embodiment also solves the technical problem that the stator core core split design of the prior art causes the accuracy of the stator to be reduced, and the assembly process is complicated after the winding is completed.
- the first tooth 112b and the second tooth 122b are alternately arranged on the stator core 1b after the assembly is completed, so that any two adjacent first teeth 112b are spaced apart by one.
- the space of the second teeth 122b is spaced apart from any two adjacent second teeth 122b by a space of the first teeth 112b, so that the first teeth 11b2 and the second teeth of the two-part body 11b can also be made.
- the windings on the 122b have a large winding space, so that the winding efficiency of the stator core 1 and the slot fullness of the stator can be improved, and the copper constituting the stator winding can be increased on the premise of increasing the tank full rate.
- the wire is changed to an aluminum wire, which is advantageous for saving the material cost of the stator; and the opening of the wire groove 100b on the stator core 1b can also be designed to be small, improving the performance of the motor.
- the first winding coil 201 b and the second winding coil 202 are made b is formed on each of the first teeth 112b and the second teeth 122b by continuous winding, and the first winding coil 201b and the second winding coil 202b are in the two-part 11 A total of four wire ends are formed on b, wherein the first winding coil 201 b forms a first wire head and a second wire head on one of the bodies 11 b, and the second winding wire 202 is in another body 11 A third wire head and a fourth wire head are formed on b.
- the windings on any of the split bodies 11 b are continuously wound, that is, any of the split bodies 11
- the winding process of b does not need to cut the enameled wire, so that the wire breaking and wiring process can be saved on the one hand, thereby reducing the production cost of the stator and improving the production efficiency of the stator; on the other hand, the need for the PCB board can be saved, saving The cost of the PCB board further reduces the production cost of the motor.
- the first winding coil 201b and the second winding coil 202b may be respectively formed on the two-part body 11b by means of intermittent winding, that is, the first winding coil 201b.
- the first winding 112b is formed on each of the first teeth 112b of the one body 11b, and the second winding coil 202b is formed in the second tooth of the other partial body 11b by intermittent winding.
- the first winding coil 201b forms a two-wire head on each of the first teeth 112b
- the second winding coil 202b forms two wire ends on each of the second teeth 122, thus, at each of the first teeth 112b
- the windings on each of the second teeth 122b are intermittently wound. Each time the first tooth 112b is wound, the enameled wire is cut once, and the enameled wire is cut once for each second tooth 122b.
- the stator provided in this embodiment can also be applied to an inner rotor motor (the rotor is disposed outside the stator) and an outer rotor motor (the rotor is disposed outside the stator).
- the first yoke 111b has a first inner sidewall 1111b and a first outer sidewall 1112b
- the second yoke 121b has a second inner sidewall 1211b and a second outer sidewall 1212b, as shown in FIGS. 9-16, when the stator is applied In the inner rotor motor, the first teeth 112b are circumferentially distributed on the first inner side wall 1111b; the second teeth 122b are circumferentially distributed on the second inner side wall 1211b; as shown in FIGS.
- the sum of the number of the first teeth 112b and the number of the second teeth 122b is an even number greater than or equal to four, and the number of the first teeth 112b and the number of the second teeth 122b are equal, such that On the entire stator core 1, the first teeth 112b and the second teeth 122b are alternately arranged in the circumferential direction, which ensures that the winding head has a sufficiently large movable space when winding the two separate bodies 11b separately, thereby facilitating the improvement. Winding efficiency of the stator windings. Specifically, as shown in FIG. 9 to FIG.
- the first tooth 112b and the second tooth 122b are respectively provided with two, and the first tooth 112b.
- the second teeth 122b are alternately distributed in the circumferential direction; as shown in FIG. 113 and FIG. 14, when the motor is a six-slot motor (the number of the wires 100b is six), the first teeth 112b and the second teeth 122b are respectively provided. There are three, and the first tooth 112b and the second tooth 122b are alternately distributed in the circumferential direction; as shown in FIGS.
- the motor when the motor is a twelve-slot motor (the number of the wire slots 100b is twelve), the first The teeth 112b and the second teeth 122b are respectively provided with six, and the first teeth 112b and the second teeth 122b are alternately distributed in the circumferential direction.
- a first card slot 101b may be disposed on the first sub-yoke 111b and between any two adjacent first teeth 112b, and each of the first teeth 112b is provided with a first a second latching groove 103b is disposed on the second sub-yoke 121b and between any two adjacent second teeth 122b, and each of the second teeth 122b is provided with a second boss 104b, and each of the first latching slots 101b
- the second bosses 104b are respectively inserted into the card, and the first bosses 102b are respectively inserted and connected to the second card slots 103b.
- Embodiment 3 is a diagrammatic representation of Embodiment 3
- the number of the split bodies 11c is equal to the number of the stator teeth 112c on the stator core 1c, and the split bodies are made.
- Each of the 11c has a sub-yoke 111c which is circumferentially closed and has a thickness smaller than the thickness of the stator core 1c and a stator tooth 112c which is provided on the sub-yoke 111c so that the sum of the thicknesses of the respective sub-yokes 111c is equal to the thickness of the stator core 1c.
- the stator core 1c includes a stator yoke 10c and a plurality of stator teeth 112c provided on the stator yoke 10c.
- the number of the split bodies 11c is equal to the number of the stator teeth 112c, and the stator teeth 112c of the respective split bodies 11c are in the stator iron.
- the cores 1c are respectively arranged offset from each other in the circumferential direction; in the winding step, the sub-windings are separately wound on the respective sub-pieces 11c, and the respective sub-winding coils 2c are wound on the stator teeth 112c of the respective sub-pieces 11c; In the step, each of the split bodies 11c is stacked and assembled in the axial direction with the stator teeth 112c being shifted from each other and alternately arranged. On the stator after assembly, any two adjacent stator teeth 112c are enclosed to form a wire groove 100c.
- the main difference between the embodiment and the first embodiment and the second embodiment is the manner of setting the number of the splits.
- the number of the splits 11a in the first embodiment is set to be at least three, and the number of the splits 11b in the second embodiment is set to be
- the number of the split bodies 11c is the same as the number of the stator teeth 112c on the stator core 1c, and the embodiment also solves the problem that the stator roundness accuracy of the prior art stator core split design is reduced.
- stator teeth 112c on each of the split bodies 11c before assembly have a large movable space, thereby making The winding head can have a large winding space when wound on the stator teeth 112c of each of the split bodies 11c, so that on the one hand, it is advantageous to improve the winding efficiency of the stator core 1c, and on the other hand, it is advantageous to increase the slot of the stator.
- the copper wire constituting the stator winding can be changed to aluminum wire, which is beneficial to save the material cost of the stator; on the other hand, the opening of the wire slot 100c on the stator core 1 can be designed according to the design requirements.
- the flexible design allows the opening of the wire groove 100c to be designed to be small, and even the wire groove 100c can be designed in the form of an approximately closed groove, improving the performance of the motor.
- each of the sub-yokes 111c is circumferentially closed, it ensures the roundness precision of the stator, and welding between the split bodies 11c is not required, which simplifies the subsequent assembly process after the winding is completed, thereby facilitating the improvement of the stator. Production efficiency.
- stator core 1c provided in this embodiment may also be respectively applied to an inner rotor motor (the rotor is disposed on the outer side of the stator) and an outer rotor motor (the rotor is disposed on the outer side of the stator), that is, each of the stator teeth 112c may be separately provided.
- the inner side walls 1111c of the respective sub-yokes 111c may be provided on the outer side walls 1112c of the respective sub-yokes 111c, respectively.
- the motor when the motor is a three-slot motor (the number of the wire grooves 100c is three and the number of the stator teeth 112c is three), as shown in FIGS. 19 to 21, the number of the stator teeth 112c is three.
- the number of the split bodies 11c is correspondingly set to three, and each of the split bodies 11c includes a sub-yoke 111c and a stator tooth 112c which are circumferentially closed and have a thickness of one third of the thickness of the stator yoke 10c; when the motor is four In the case of the slot motor, as shown in FIGS.
- the number of the stator teeth 112c is four, and the number of the split bodies 11c is set to four, and each of the split bodies 11c includes a circumferentially closed one and a thickness of the stator yoke 10c. a quarter of the thickness of the sub-yoke 111c and a stator tooth 112c; when the motor is a nine-slot motor, the number of the stator teeth 112c is nine, and the number of the split bodies 11c is correspondingly set to nine, and each of the split bodies 11c includes a circumferentially closed and a thickness nine of the thickness of the stator yoke 10c.
- the number of the stator yokes 111c is less than one of the number of stator teeth 112c.
- the first card slot 101c is provided with a first boss 102c on the stator teeth 112c of each of the stator teeth 112c, and each of the split bodies 11 is inserted into and engaged with each of the first bosses 102c through the first card slots 101c.
- the fastening is fastened, so that the stator teeth of any of the split bodies 11c can be effectively realized by the snap fit of each of the first bosses 102c and the first card slots 101c. a fastening connection of 112c to each of the sub-yokes 111c of the remaining split body 11c;
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Abstract
A stator manufacturing method and a stator. The stator manufacturing method comprises the following steps: a manufacturing step for iron core split bodies (11a): manufacturing at least two split bodies (11a) that can be axially stacked to form a stator iron core (1a) and providing each split body (11a) with one circumferentially closed sub-yoke (111a) and at least one stator tooth (112a) disposed on the sub-yoke (111a); a winding step: winding stator windings around the split bodies (11a) respectively, and forming branch winding coils (2a) on the stator teeth (112a) of the split bodies (11a) respectively; and an assembling step: axially stacking the split bodies (11a) where the branch winding coils (2a) are wound to form a stator in a manner that the stator teeth (112a) are mutually staggered. By means of the stator manufacturing method and the stator, large spaces can be provided for winding performed on the split bodies (11a) independently, so that the winding efficiency of the stator iron core (1a) is improved, the slot fullness rate of the stator is increased, and the material cost of the stator is lowered; openings of winding slots in the stator iron core (1a) can be designed to be small, and the performance of a motor is improved; and meanwhile, the roundness precision of the stator is guaranteed, and the assembling process is simplified.
Description
本发明属于电机领域,尤其涉及定子的制造方法及采用该制造方法制成的定子。The invention belongs to the field of electric machines, and in particular relates to a method for manufacturing a stator and a stator produced by the method.
电机定子的一种传统制造方法是这样的:先整体冲裁出定子冲片,再将定子冲片叠压形成整体定子铁芯,然后利用绕线机在该整体定子铁芯上绕制定子绕组。该定子的传统制造方法在具体应用中存在以下缺陷:由于受绕线空间要求的限制,故,其槽满率不高,且定子铁芯上的线槽开口需设计得较大,从而影响了电机性能的提升。A conventional manufacturing method of the motor stator is such that the stator punch is integrally punched out, and then the stator punch is laminated to form an integral stator core, and then the winding is wound on the integral stator core by a winding machine. . The conventional manufacturing method of the stator has the following drawbacks in specific applications: due to the limitation of the winding space requirement, the slot full rate is not high, and the slot opening on the stator core needs to be designed to be large, thereby affecting Improvement in motor performance.
为了解决上述传统定子制造方法中的技术问题,现有技术提出了两种定子铁芯分体进行绕线的方案:In order to solve the technical problems in the above conventional stator manufacturing method, the prior art proposes two kinds of stator core split winding schemes:
1)一种方案是将定子铁芯的定子轭和定子齿进行完全分离设置,并单独在定子齿上绕线完毕后再将定子轭和绕设有定子绕组线圈的定子齿组装为整体定子。该方案虽然解决了传统定子制造方法中绕线受空间限制、槽满率低的技术问题,但是,其在具体应用中仍存在不足之处,具体体现在:一方面定子齿和定子轭的组装工序时间长、组装难度大;另一方面降低了定子的内圆圆度精度。1) One solution is to completely separate the stator yoke and the stator teeth of the stator core, and separately wind the stator teeth and then assemble the stator yoke and the stator teeth around the stator winding coils into an integral stator. Although this scheme solves the technical problem that the winding of the traditional stator manufacturing method is limited by space and the tank full rate is low, there are still some deficiencies in the specific application, which are embodied in the following: assembly of stator teeth and stator yoke on the one hand The process time is long and the assembly is difficult; on the other hand, the accuracy of the inner circularity of the stator is lowered.
2)另一种方案是将定子铁芯沿圆周方向分割成若干块分割体设置,并单独在每块分割体上单独绕线后,再将绕设有定子绕组线圈的各分割体沿圆周方向拼接组装成整体定子。该方案虽然同样解决了传统定子制造方法中绕线受空间限制、槽满率低的技术问题,但是,其在具体应用中仍存在不足之处,具体体现在:一方面降低了定子的内圆圆度精度;另一方面需要在各分割体的接合处进行焊接操作,操作过程复杂,且整个定子需要进行塑封操作,工序复杂,不利于整个定子的散热和整机重量的减轻。2) Another solution is to divide the stator core into a plurality of divided bodies in the circumferential direction, and separately wind the windings around each of the divided bodies, and then divide the divided bodies around the stator winding coils in the circumferential direction. The splicing is assembled into an integral stator. Although this scheme also solves the technical problem that the winding of the traditional stator manufacturing method is limited by space and the tank full rate is low, it still has some deficiencies in the specific application, which is embodied in the following: on the one hand, the inner circle of the stator is reduced. On the other hand, the welding operation is required at the joint of each divided body, the operation process is complicated, and the entire stator needs to be plastically sealed, and the process is complicated, which is disadvantageous to the heat dissipation of the entire stator and the weight reduction of the whole machine.
本发明的目的在于克服上述现有技术的不足,提供了定子的制造方法及定子,其解决了现有技术定子铁芯分体设计造成定子圆度精度降低、绕线完毕后组装工序复杂的技术问题。The object of the present invention is to overcome the deficiencies of the prior art described above, and to provide a method for manufacturing a stator and a stator, which solves the problem that the accuracy of the stator roundness is reduced due to the split design of the stator core of the prior art, and the assembly process is complicated after the winding is completed. problem.
为达到上述目的,本发明采用的技术方案是:定子的制造方法,包括如下步骤:In order to achieve the above object, the technical solution adopted by the present invention is: a method for manufacturing a stator, comprising the following steps:
铁芯分体制造步骤,制造至少两个可轴向叠压形成定子铁芯的分体,并使各所述分体都具有一个周向封闭的子轭和至少一个设于所述子轭上的定子齿;a core split manufacturing step of fabricating at least two split bodies axially laminated to form a stator core, and each of said split bodies having a circumferentially closed sub-yoke and at least one disposed on said sub-yoke Stator teeth;
绕线步骤,分别在各所述分体上绕制定子绕组,并使各所述分体的所述子齿上分别形成各分绕组线圈;a winding step of winding a sub-winding on each of the split bodies, and forming respective sub-winding coils on the sub-tooth of each of the split bodies;
组装步骤,将绕设有各所述分绕组线圈的各所述分体以各所述定子齿分别相互错开的形式沿轴向叠压形成所述定子。In the assembling step, each of the splits around each of the divided winding coils is axially laminated to form the stator in such a manner that each of the stator teeth is offset from each other.
作为分体设置数量的一具体实施方案,所述铁芯分体制造步骤中,使所述分体的数量为至少三个,并使各所述分体都具有一个周向封闭且厚度小于所述定子铁芯的厚度的所述子轭和至少一个设于所述子轭上且厚度与所述定子铁芯的厚度相等的所述定子齿;As a specific embodiment of the number of split bodies, in the core split manufacturing step, the number of the split bodies is at least three, and each of the split bodies has a circumferential seal and a thickness smaller than The sub-yoke of the thickness of the stator core and the at least one stator tooth provided on the sub-yoke and having a thickness equal to the thickness of the stator core;
所述组装步骤中,使各所述分体以各所述定子齿分别相互错开的形式沿轴向进行叠压组装,并使任意一所述分体的一个所述定子齿的相邻两侧都分别为另外两所述分体上的两所述定子齿。In the assembling step, each of the split bodies is assembled in the axial direction in such a manner that each of the stator teeth is mutually offset, and adjacent sides of one of the stator teeth of any one of the split bodies are provided. They are respectively two of the stator teeth on the other two of the split bodies.
具体地,所述定子铁芯的所述定子齿的数量之和为三的整数倍,该整数倍大于或等于一倍,且在所述铁芯分体制造步骤中,使所述分体的数量为三。Specifically, the sum of the number of the stator teeth of the stator core is an integral multiple of three, the integer multiple is greater than or equal to one time, and in the core split manufacturing step, the split The number is three.
或者,所述定子铁芯的所述定子齿的数量之和为大于二的偶数,且在所述铁芯分体制造步骤中,使所述分体的数量为大于二的偶数。Alternatively, the sum of the number of the stator teeth of the stator core is an even number greater than two, and in the core split manufacturing step, the number of the splits is made to be an even number greater than two.
作为分体设置数量的另一具体实施方案,所述铁芯分体制造步骤中,使所述分体的数量为两个,并使其中一个所述分体具有周向封闭的第一子轭和若干个沿圆周方向间隔设于所述第一子轭上的第一齿,使另外一个所述分体具有周向封闭的第二子轭和若干个沿圆周方向间隔设于所述第二子轭上的第二齿;同时,使所述第一子轭的厚度与所述第二子轭的厚度之和、所述第一齿的厚度、所述第二齿的厚度都等于所述定子铁芯的厚度;As another specific embodiment of the number of split bodies, in the core split manufacturing step, the number of the split bodies is two, and one of the split bodies has a first yoke that is circumferentially closed. And a plurality of first teeth spaced apart from each other on the first yoke in a circumferential direction, such that the other of the split bodies has a second yoke that is circumferentially closed and a plurality of circumferentially spaced apart at the second a second tooth on the sub-yoke; at the same time, the sum of the thickness of the first yoke and the thickness of the second yoke, the thickness of the first tooth, and the thickness of the second tooth are equal to The thickness of the stator core;
所述组装步骤中,使所述第一分体和所述第二分体以各所述第一齿与各所述第二齿分别相互错开并交替设置的形式沿轴向叠压组装。In the assembling step, the first split body and the second split body are assembled in an axially stacked manner in such a manner that each of the first teeth and each of the second teeth are respectively shifted from each other and alternately arranged.
作为分体设置数量的又一具体实施方案,所述铁芯分体制造步骤中,使所述分体的数量等于所述定子铁芯上定子齿的数量,并使各所述分体都具有一个周向封闭且厚度小于所述定子铁芯的厚度的所述子轭和一个设于所述子轭上的所述定子齿,使各所述子轭的厚度之和等于所述定子铁芯的厚度;As another specific embodiment of the number of split bodies, in the core split manufacturing step, the number of the split bodies is equal to the number of stator teeth on the stator core, and each of the split bodies has a sub-yoke circumferentially closed and having a thickness smaller than a thickness of the stator core and a stator tooth provided on the sub-yoke such that a sum of thicknesses of the sub-yokes is equal to the stator core thickness of;
所述组装步骤中,使各所述分体以各所述定子齿分别相互错开的形式沿轴向进行叠压组装。In the assembling step, each of the split bodies is assembled in the axial direction in such a manner that each of the stator teeth is shifted from each other.
优选地,所述铁芯分体制造步骤中,使各所述分体的所述子轭的厚度都相等。Preferably, in the core split manufacturing step, the thicknesses of the sub-yokes of each of the split bodies are equal.
优选地,所述铁芯分体制造步骤中,先分别制造第一单元和第二单元,并使所述第一单元具有所述子轭和厚度与所述子轭的厚度相等的第一分齿,使所述第二单元具有厚度与所述第一分齿的厚度之和等于所述定子齿的厚度的第二分齿;再将所述第一单元和所述第二单元沿轴向叠压连接形成所述分体。Preferably, in the core split manufacturing step, the first unit and the second unit are separately fabricated, and the first unit has the first yoke and the first portion having a thickness equal to the thickness of the yoke a second unit having a second thickness of the second unit having a thickness equal to a thickness of the first tooth; the first unit and the second unit being axially A laminated connection forms the split body.
优选地,所述铁芯分体制造步骤中,使所述第一单元由若干个第一冲片叠压而成,使所述第二单元由若干个第二冲片叠压而成,并使所述第一冲片具有轭片和一体连接于所述轭片上的第一齿片,使所述第二冲片具有第二齿片。Preferably, in the core split manufacturing step, the first unit is formed by laminating a plurality of first punches, and the second unit is formed by stacking a plurality of second punches, and The first punching piece has a yoke piece and a first tooth piece integrally coupled to the yoke piece, such that the second punching piece has a second tooth piece.
优选地,所述铁芯分体制造步骤中,使所述第一冲片和所述第二冲片在同一冲片原料上冲裁形成,并使所述第一齿片与所述第二齿片环绕所述轭片沿圆周方向冲裁形成。Preferably, in the core split manufacturing step, the first punching piece and the second punching piece are punched out on the same punching material, and the first tooth piece and the second piece are made A tooth piece is formed in a circumferential direction around the yoke piece.
优选地,所述组装步骤中,在组装各所述分体时,使任一所述分体上的所述子轭与其余所述分体上的所述定子齿之间通过焊接或塑封固定或绝缘框架固定或卡扣连接方式相互连接。Preferably, in the assembling step, when assembling each of the split bodies, fixing the sub-yoke on any of the split bodies to the stator teeth on the remaining split bodies by welding or plastic sealing Or the insulating frame is fixed or the snap connection is connected to each other.
进一步地,本发明还提供了定子,其采用上述的定子的制造方法制成。Further, the present invention also provides a stator which is manufactured by the above-described method of manufacturing a stator.
本发明提供的定子的制造方法及由该制造方法制成的定子,通过将定子铁芯沿轴向分成至少两个分体进行单独加工并绕线后,再将绕线完毕的各分体沿轴向以各定子齿分别相互错开的形式叠压形成整体定子,其有效实现了定子的生产制造。由于在组装完成后的定子上任意一分体的一个定子齿的相邻两侧都为其他分体上的两定子齿,即组装完成的定子上同一分体的定子齿是不相邻设置的,故,在组装前的各分体上的任意一个定子齿两侧都具有较大的活动空间,从而使得单独在各分体的定子齿上绕线都可具有较大的绕线空间,这样,一方面利于提高定子铁芯的绕线效率,另一方面利于提高定子的槽满率,且在槽满率提高的前提下,可将构成定子绕组的铜线改为铝线,利于节省定子的材料成本;再一方面使得定子铁芯上的线槽开口可设计得较小,改善了电机的性能。同时,由于各子轭都是圆周封闭的、各分体是沿轴向叠压组装的,故其保证了定子的圆度精度,且各分体之间不需进行焊接,简化了组装工序,进而利于提高定子的生产效率。The manufacturing method of the stator provided by the present invention and the stator manufactured by the manufacturing method are separately processed and wound by dividing the stator core into at least two separate bodies in the axial direction, and then the respective wound bodies along the winding are completed. The axial direction is formed by laminating the stator teeth in a staggered manner to form an integral stator, which effectively realizes the production of the stator. Since the adjacent sides of one stator tooth of any one of the stators after the assembly is completed are two stator teeth on the other split body, that is, the stator teeth of the same split body on the assembled stator are not adjacently arranged. Therefore, any one of the stator teeth on each of the split bodies before assembly has a large movable space, so that the windings on the stator teeth of each split body can have a larger winding space, so that On the one hand, it is beneficial to improve the winding efficiency of the stator core, on the other hand, it is beneficial to increase the slot full rate of the stator, and on the premise of improving the groove full rate, the copper wire constituting the stator winding can be changed into an aluminum wire, which is beneficial to save the stator. The material cost; on the other hand, the slot opening on the stator core can be designed to be small, improving the performance of the motor. At the same time, since each of the sub-yokes is circumferentially closed and the split bodies are assembled in the axial direction, the roundness precision of the stator is ensured, and welding is not required between the split bodies, which simplifies the assembly process. In turn, it is beneficial to improve the production efficiency of the stator.
图1是本发明实施例一提供的三槽内转子电机的定子铁芯的分解示意图;1 is an exploded perspective view of a stator core of a three-slot inner rotor motor according to a first embodiment of the present invention;
图2是本发明实施例一提供的三槽内转子电机的定子铁芯的装配示意图;2 is a schematic view showing the assembly of a stator core of a three-slot inner rotor motor according to Embodiment 1 of the present invention;
图3是本发明实施例一提供的三槽内转子电机的各分绕组线圈分别在各定子齿上绕制的示意图;3 is a schematic view showing the winding coils of the three-slot inner rotor motor respectively wound on the stator teeth according to the first embodiment of the present invention;
图4是本发明实施例一提供的三槽内转子电机的分体的分解示意图;4 is an exploded perspective view showing a split body of a three-slot inner rotor motor according to Embodiment 1 of the present invention;
图5是本发明实施例一提供的四槽内转子电机的定子铁芯的分解示意图;5 is an exploded perspective view of a stator core of a four-slot inner rotor motor according to Embodiment 1 of the present invention;
图6是本发明实施例一提供的四槽内转子电机的定子铁芯的装配示意图;6 is a schematic view showing the assembly of a stator core of a four-slot inner rotor motor according to Embodiment 1 of the present invention;
图7是本发明实施例一提供的九槽内转子电机的定子铁芯的分解示意图;7 is an exploded perspective view showing a stator core of a nine-slot inner rotor motor according to Embodiment 1 of the present invention;
图8是本发明实施例一提供的九槽内转子电机的定子铁芯的装配示意图;8 is a schematic view showing the assembly of a stator core of a nine-slot inner rotor motor according to a first embodiment of the present invention;
图9是本发明实施例二提供的四槽内转子电机的定子铁芯的分解示意图;9 is an exploded perspective view showing a stator core of a four-slot inner rotor motor according to a second embodiment of the present invention;
图10是本发明实施例二提供的四槽内转子电机的定子铁芯的装配示意图;10 is a schematic view showing the assembly of a stator core of a four-slot inner rotor motor according to a second embodiment of the present invention;
图11是本发明实施例二提供的四槽内转子电机的各分绕组线圈分别在各分体上连续绕制的示意图;11 is a schematic view showing the winding of each of the partial winding coils of the four-slot inner rotor motor in each of the separate bodies according to the second embodiment of the present invention;
图12是本发明实施例二提供的四槽内转子电机的各分绕组线圈分别在各分体上间断绕制的示意图;12 is a schematic view showing the winding of each of the partial winding coils of the four-slot inner rotor motor provided on each of the split bodies according to the second embodiment of the present invention;
图13是本发明实施例二提供的六槽内转子电机的定子铁芯的分解示意图;13 is an exploded perspective view showing a stator core of a six-slot inner rotor motor according to a second embodiment of the present invention;
图14是本发明实施例二提供的六槽内转子电机的定子铁芯的装配示意图;14 is a schematic view showing the assembly of a stator core of a six-slot inner rotor motor according to a second embodiment of the present invention;
图15是本发明实施例二提供的十二槽内转子电机的定子铁芯的分解示意图;15 is an exploded perspective view showing a stator core of a twelve-slot inner rotor motor according to a second embodiment of the present invention;
图16是本发明实施例二提供的十二槽内转子电机的定子铁芯的装配示意图;16 is a schematic view showing the assembly of a stator core of a twelve-slot inner rotor motor according to a second embodiment of the present invention;
图17是本发明实施例二提供的十二槽外转子电机的定子铁芯的分解示意图;17 is an exploded perspective view showing a stator core of a twelve-slot outer rotor motor according to a second embodiment of the present invention;
图18是本发明实施例二提供的十二槽外转子电机的定子铁芯的装配示意图;18 is a schematic view showing the assembly of a stator core of a twelve-slot outer rotor motor according to a second embodiment of the present invention;
图19是本发明实施例三提供的三槽内转子电机的定子铁芯的分解示意图;19 is an exploded perspective view showing a stator core of a three-slot inner rotor motor according to a third embodiment of the present invention;
图20是本发明实施例三提供的三槽内转子电机的定子铁芯的装配示意图;20 is a schematic view showing the assembly of a stator core of a three-slot inner rotor motor according to a third embodiment of the present invention;
图21是本发明实施例三提供的三槽内转子电机的各分绕组线圈分别在各分体上绕制的示意图;21 is a schematic view showing the winding coils of the three-slot inner rotor motor respectively wound on the respective split bodies according to the third embodiment of the present invention;
图22是本发明实施例三提供的四槽内转子电机的定子铁芯的分解示意图;22 is an exploded perspective view showing a stator core of a four-slot inner rotor motor according to a third embodiment of the present invention;
图23是本发明实施例三提供的四槽内转子电机的定子铁芯的装配示意图。23 is a schematic view showing the assembly of a stator core of a four-slot inner rotor motor according to a third embodiment of the present invention.
为了使本发明的目的、技术方案及优点更加清楚明白,以下结合附图及实施例,对本发明进行进一步详细说明。应当理解,此处所描述的具体实施例仅仅用以解释本发明,并不用于限定本发明。The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
实施例一:Embodiment 1:
如图1~8所示,本发明实施例一提供的定子的制造方法,包括如下步骤:As shown in FIG. 1 to FIG. 8 , a method for manufacturing a stator according to Embodiment 1 of the present invention includes the following steps:
铁芯分体制造步骤,制造至少两个可轴向叠压形成定子铁芯1a的分体11a,并使各分体11a都具有一个周向封闭且厚度(轴向厚度)小于定子铁芯1a厚度的子轭111a和至少一个设于子轭111a上的定子齿112a;In the core split manufacturing step, at least two split bodies 11a capable of axially laminating to form the stator core 1a are manufactured, and each of the split bodies 11a has a circumferential seal and a thickness (axial thickness) smaller than that of the stator core 1a. a thickness of the sub-yoke 111a and at least one stator tooth 112a provided on the sub-yoke 111a;
绕线步骤,分别在各分体11a上绕制定子绕组,并使各分体11a的子齿上分别形成各分绕组线圈2a;a winding step, respectively, a sub-winding is formed on each of the split bodies 11a, and the sub-winding coils 2a are respectively formed on the sub-tooth of each of the split bodies 11a;
组装步骤,将绕设有各分绕组线圈2a的各分体11a以各定子齿112a分别相互错开并交替设置的形式沿轴向叠压形成定子,且任意一分体11a的一个定子齿112a的相邻两侧都分别为另一分体11a上的两定子齿112a或者为另外两分体11a上的两定子齿112a。具体地,各分体11a叠压组装成定子铁芯1a,各分绕组线圈2a串联或并联连接形成定子绕组。在组装完成后的定子上,任意两相邻的定子齿112a之间围合形成一个线槽100a。In the assembling step, each of the split bodies 11a around which the respective split windings 2a are wound is axially laminated to form a stator in such a manner that the stator teeth 112a are respectively shifted and alternately arranged, and one stator tooth 112a of any one of the split bodies 11a is formed. The adjacent sides are respectively two stator teeth 112a on the other split body 11a or two stator teeth 112a on the other two split bodies 11a. Specifically, each of the divided bodies 11a is laminated and assembled into a stator core 1a, and each of the divided winding coils 2a is connected in series or in parallel to form a stator winding. On the stator after assembly, any two adjacent stator teeth 112a are enclosed to form a wire groove 100a.
本发明实施例,是先分别在各分体11a的定子齿112a上分别单独绕线(绕制定子绕组)后,再将绕线完毕的各分体11a沿轴向以各定子齿112a分别相互错开的形式叠压形成整体定子。由于在组装完成后的定子上任意一分体11a的一个定子齿112a的相邻两侧都为其他分体11a上的两定子齿112a,即组装完成的定子上同一分体11a的定子齿112a是不相邻设置的,故,在组装前的各分体11a上的任意一个定子齿112a两侧都具有较大的活动空间,从而使得单独在各分体11a的定子齿
112a上绕线都可具有较大的绕线空间,这样,一方面利于提高定子铁芯1a的绕线效率,另一方面利于提高定子的槽满率,且在槽满率提高的前提下,可将构成定子绕组的铜线改为铝线,利于节省定子的材料成本;再一方面使得定子铁芯1a上的线槽100a开口可设计得较小,甚至可使线槽100a设计成近似闭口槽的形式,进而利于改善电机的性能。同时,由于各子轭111a都是圆周封闭的,故其保证了定子的圆度精度,且各分体11a之间不需进行焊接,简化了绕线完毕后的后续组装工序,进而利于提高定子的生产效率。In the embodiment of the present invention, each of the stator teeth 112a of each of the split bodies 11a is separately wound (wrap around the sub-winding), and then the wound partial bodies 11a are respectively axially coupled to each other by the stator teeth 112a. The staggered form is laminated to form an integral stator. Since the adjacent sides of one stator tooth 112a of any one of the split bodies 11a on the assembled stator are the two stator teeth 112a on the other split bodies 11a, that is, the stator teeth 112a of the same split body 11a on the assembled stator. It is not adjacently disposed, so that any one of the stator teeth 112a on each of the split bodies 11a before assembly has a large movable space, so that the stator teeth separately in each of the split bodies 11a
The winding wire 112a can have a large winding space, so that on the one hand, the winding efficiency of the stator core 1a is improved, and on the other hand, the slot fullness rate of the stator is improved, and under the premise that the groove full rate is improved, The copper wire constituting the stator winding can be changed to an aluminum wire to save the material cost of the stator; on the other hand, the opening of the wire groove 100a on the stator core 1a can be designed to be small, and even the wire groove 100a can be designed to be approximately closed. The form of the groove, which in turn helps to improve the performance of the motor. At the same time, since each of the sub-yokes 111a is circumferentially closed, the accuracy of the roundness of the stator is ensured, and welding between the split bodies 11a is not required, which simplifies the subsequent assembly process after the winding is completed, thereby facilitating the improvement of the stator. Production efficiency.
具体地,各分绕组线圈2a的线头可直接焊接到PCB板上或直接引出电机外,且各分绕组线圈2a可为串联绕组(即各分绕组线圈2a之间串联连接)也可为并联绕组(即各分绕组线圈2a之间并联连接)。Specifically, the wire ends of the respective winding coils 2a can be directly soldered to the PCB board or directly drawn out of the motor, and each of the partial winding coils 2a can be a series winding (that is, a series connection between the respective winding coils 2a) or a parallel winding. (ie, the sub-winding coils 2a are connected in parallel).
具体地,如图1~3和图5~8所示,铁芯分体制造步骤中,使分体11a的数量为至少三个,并使各分体11a都具有一个周向封闭且厚度小于定子铁芯1a的厚度的子轭111a和至少一个设于子轭111a上且厚度与定子铁芯1a的厚度相等的定子齿
112a;Specifically, as shown in FIGS. 1 to 3 and FIGS. 5 to 8, in the core split manufacturing step, the number of the split bodies 11a is at least three, and each of the split bodies 11a has a circumferential seal and a thickness smaller than that. a sub-yoke 111a having a thickness of the stator core 1a and at least one stator tooth provided on the sub-yoke 111a and having a thickness equal to the thickness of the stator core 1a
112a;
组装步骤中,使各分体11a以各定子齿112a分别相互错开的形式沿轴向进行叠压组装,并使任意一分体11a的一个定子齿112a的相邻两侧都分别为另外两分体
11a上的两定子齿112a。本实施例中,由于各子轭111a都是周向封闭的,故其保证了定子的圆度精度,且各分体11a之间不需进行焊接,简化了绕线完毕后的后续组装工序,进而利于提高定子的生产效率。In the assembling step, each of the split bodies 11a is assembled in the axial direction in such a manner that the stator teeth 112a are offset from each other, and the adjacent sides of one stator tooth 112a of any one of the split bodies 11a are respectively two points. body
Two stator teeth 112a on 11a. In this embodiment, since each of the sub-yokes 111a is circumferentially closed, the accuracy of the roundness of the stator is ensured, and welding is not required between the split bodies 11a, which simplifies the subsequent assembly process after the winding is completed. In turn, it is beneficial to improve the production efficiency of the stator.
优选地,本实施例中,铁芯分体制造步骤中,使各分体11a的子轭111a的厚度都相等,并使各分体11a上的定子齿112a的数量都相等。这样,利于使各分体11a的子轭111a的结构形状都相同,从而利于简化各分体11a的设计加工过程,进而利于提高定子的生产效率。Preferably, in the present embodiment, in the core split manufacturing step, the thicknesses of the sub-yokes 111a of the respective split bodies 11a are made equal, and the number of the stator teeth 112a on each of the split bodies 11a is made equal. In this way, it is advantageous to make the structural shapes of the sub-yokes 111a of the respective split bodies 11a the same, thereby facilitating the simplification of the design process of each of the split bodies 11a, and further improving the production efficiency of the stator.
具体地,本发明实施例提供的定子可适用于内转子电机(转子设于定子的外侧)也可为适用于外转子电机(转子设于定子的外侧)。具体地,子轭111a具有内侧壁1111a和外侧壁1112a,当定子应用于内转子电机上时,各定子齿112a都分别设于各子轭111a的内侧壁1111a上;当定子应用于外转子电机上时,各定子齿
112a都分别设于各子轭111a的外侧壁1112a上。Specifically, the stator provided by the embodiment of the present invention can be applied to an inner rotor motor (the rotor is disposed on the outer side of the stator) or can be applied to the outer rotor motor (the rotor is disposed on the outer side of the stator). Specifically, the sub-yoke 111a has an inner side wall 1111a and an outer side wall 1112a. When the stator is applied to the inner rotor motor, each of the stator teeth 112a is respectively disposed on the inner side wall 1111a of each of the sub-yokes 111a; when the stator is applied to the outer rotor motor When on, each stator tooth
112a are respectively disposed on the outer side wall 1112a of each of the sub-yokes 111a.
具体地,如图1~3和图7~8所示,当定子铁芯1a上的定子齿112a的数量之和为三的整数倍、且该整数倍大于或等于一倍时,分体11a的数量设为三个。优选地,三个分体11a的子轭111a的厚度都相等,三个分体11a上的定子齿112a的数量都相等,即三个分体11a的子轭111a厚度都为定子铁芯1a的的厚度的三分之一,三个分体11a的定子齿112a的数量都为定子铁芯1a定子齿112a总数量的三分之一,例如当电机为三槽电机(线槽100a数量为三个、定子齿112a数量为三个的电机)时,分体11a的数量设为三个,每个分体11a包括一个子轭111a和一个定子齿112a;当电机为六槽电机时,分体11a的数量设为三个,每个分体11a包括一个子轭
111a和两个定子齿112a;当电机为九槽电机时,分体11a的数量设为三个,每个分体11a包括一个子轭111a和三个定子齿112a。本实施方案中,在整体定子铁芯
1a(由各分体11a组装形成的定子铁芯1a)上,任意一分体11a的一个定子齿112a的相邻两侧分别为另外两个分体11a上的定子齿112a,从而使得任意一分体11a的一个定子齿112a两侧都具有较大的空间(都具有至少两个线槽100a的空间),保证了在各分体11a上单独绕线的方便性,利于保证定子的绕线效率和槽满率。同时,本实施方案在保证各分体11a单独绕线都方便(绕线空间足够大)的前提下,可最少化形成定子铁芯1a的分体11a的数量,从而利于减少各分体11a的组装时间,进而利于提高定子的生产效率。Specifically, as shown in FIGS. 1 to 3 and FIGS. 7 to 8, when the sum of the number of the stator teeth 112a on the stator core 1a is an integral multiple of three, and the integral multiple is greater than or equal to one time, the split body 11a The number is set to three. Preferably, the thicknesses of the sub-yokes 111a of the three split bodies 11a are equal, and the number of the stator teeth 112a on the three split bodies 11a are equal, that is, the thickness of the sub-yoke 111a of the three split bodies 11a is the stator core 1a. One third of the thickness, the number of stator teeth 112a of the three split bodies 11a is one-third of the total number of stator teeth 112a of the stator core 1a, for example, when the motor is a three-slot motor (the number of the line slots 100a is three) When the number of stator teeth 112a is three, the number of the split bodies 11a is set to three, each of the split bodies 11a includes one sub-yoke 111a and one stator tooth 112a; when the motor is a six-slot motor, the split body The number of 11a is set to three, and each split 11a includes a sub-yoke
111a and two stator teeth 112a; when the motor is a nine-slot motor, the number of the split bodies 11a is set to three, and each of the split bodies 11a includes one sub-yoke 111a and three stator teeth 112a. In the present embodiment, the integral stator core
1a (the stator core 1a assembled by each of the split bodies 11a), the adjacent sides of one stator tooth 112a of any one of the split bodies 11a are respectively the stator teeth 112a on the other two split bodies 11a, thereby making any one One stator tooth 112a of the split body 11a has a large space on both sides (both having at least two slots 100a), which ensures the convenience of winding the individual wires 11a, and ensures the winding of the stator. Efficiency and slot full rate. In the meantime, the present embodiment can minimize the number of the split bodies 11a forming the stator core 1a under the premise of ensuring that the individual windings 11a are individually wound (the winding space is sufficiently large), thereby facilitating the reduction of the respective split bodies 11a. Assembly time, which in turn helps to improve the production efficiency of the stator.
或者,如图5和图6所示,当定子铁芯1a上的定子齿112a的数量之和为大于二的偶数时,分体11a的数量为大于二的偶数。当定子铁芯1a上的定子齿112a的数量之和既是大于二的偶数又是三的整数倍时,分体11a的数量可设为大于二的偶数也可设为三。优选地,各分体11a的子轭111a的厚度都相等,各分体11a上的定子齿112a的数量都相等,例如当电机为四槽电机(线槽100a数量为四个的电机)时,分体11a的数量可设为四个或两个;当电机为六槽电机时,分体11a的数量可设为两个或者三个;当电机为八槽电机时,分体11a的数量可设为八个或四个或两个。本实施方案中,在整体定子铁芯1a(由各分体11a组装形成的定子铁芯1a)上,任意一分体11a的一个定子齿112a的相邻两侧可分别为另外一个分体11a的两个定子齿112a或者为另外两个分体11a的两个定子齿112a,从而使得任意一分体
11a的一个定子齿112a两侧都具有较大的空间,保证了在各分体11a上单独绕线的方便性,利于保证定子的绕线效率和槽满率。Alternatively, as shown in FIGS. 5 and 6, when the sum of the number of the stator teeth 112a on the stator core 1a is an even number greater than two, the number of the split bodies 11a is an even number greater than two. When the sum of the number of the stator teeth 112a on the stator core 1a is both an even number greater than two and an integral multiple of three, the number of the split bodies 11a may be set to an even number greater than two or may be set to three. Preferably, the thicknesses of the sub-yokes 111a of the respective split bodies 11a are equal, and the number of the stator teeth 112a on each of the split bodies 11a are equal, for example, when the motor is a four-slot motor (the number of the wires 100a is four). The number of the split bodies 11a can be set to four or two; when the motor is a six-slot motor, the number of the split bodies 11a can be set to two or three; when the motor is an eight-slot motor, the number of the split bodies 11a can be Set to eight or four or two. In the present embodiment, on the integral stator core 1a (the stator core 1a assembled by the respective split bodies 11a), the adjacent sides of one stator tooth 112a of any one of the split bodies 11a may be another split body 11a, respectively. The two stator teeth 112a are the two stator teeth 112a of the other two split bodies 11a, so that any one of the splits
A stator tooth 112a of 11a has a large space on both sides, which ensures the convenience of winding the individual wires on each of the split bodies 11a, and is advantageous for ensuring the winding efficiency and the slot full rate of the stator.
优选地,铁芯分体制造步骤中,先分别制造第一单元和第二单元,并使第一单元具有子轭111a和厚度与子轭111a的厚度相等的第一分齿1121a,使第二单元具有厚度与第一分齿1121a的厚度之和等于定子齿112a的厚度的第二分齿1122a;再将第一单元和第二单元沿轴向叠压连接形成分体。本实施例,将定子齿112a分成第一分齿1121a和第二分齿1122a两部分设计加工,并使第一分齿1121a和子轭
111a的厚度一致且一起加工,这样,利于简化各分体11a的制造过程,从而利于提高各分体11a的生产制造效率。Preferably, in the core split manufacturing step, the first unit and the second unit are separately fabricated, and the first unit has the sub-yoke 111a and the first split tooth 1121a having a thickness equal to the thickness of the sub-yoke 111a, so that the second The unit has a second dividing tooth 1122a having a thickness equal to the thickness of the first dividing tooth 1121a and equal to the thickness of the stator tooth 112a; the first unit and the second unit are then axially laminated to form a split body. In this embodiment, the stator teeth 112a are divided into two parts: a first partial tooth 1121a and a second partial tooth 1122a, and the first partial teeth 1121a and the sub-yoke are formed.
The thicknesses of 111a are uniform and processed together, which facilitates the simplification of the manufacturing process of each of the bodies 11a, thereby facilitating the improvement of the manufacturing efficiency of each of the bodies 11a.
优选地,各第二分齿1122a通过铆扣或激光焊接或胶水粘接方式分别叠压固定于各第一分齿1121a上并形成定子齿112a,其安装过程简单、紧固可靠。Preferably, each of the second partial teeth 1122a is respectively laminated and fixed on each of the first partial teeth 1121a by riveting or laser welding or glue bonding to form the stator teeth 112a, and the installation process is simple and the fastening is reliable.
具体地,当形成定子铁芯1a的分体11a的数量大于或等于三个时,形成定子铁芯1a的各分体11a包括两个沿轴向分别位于定子铁芯1a两端的端侧分体11a和至少一个位于两端侧分体11a之间的中间分体11a,端侧分体11a的第二分齿1122a都位于其第一分齿1121a的单侧,中间分体11a的第二分齿1122a则包括分别位于其第一分齿1121a两侧的两个部分,在制造中间分体11a时,中间分体11a的第二分齿
1122a的两个部分分别从其第一分齿1121a的两侧叠压固定于其第一分齿1121a上。Specifically, when the number of the divided bodies 11a forming the stator core 1a is greater than or equal to three, each of the divided bodies 11a forming the stator core 1a includes two end-side splits respectively located at both ends of the stator core 1a in the axial direction. 11a and at least one intermediate split 11a between the end-side split bodies 11a, the second split teeth 1122a of the end-side splits 11a are located on one side of the first split teeth 1121a, and the second split of the intermediate splits 11a The tooth 1122a includes two portions respectively located on opposite sides of the first split tooth 1121a thereof, and the second split tooth of the intermediate split 11a when the intermediate split 11a is manufactured
The two portions of 1122a are respectively press-fitted to their first split teeth 1121a from both sides of their first split teeth 1121a.
优选地,铁芯分体制造步骤中,使第一单元由若干个第一冲片(图未示)叠压而成,使第二单元由若干个第二冲片(图未示)叠压而成,并使第一冲片具有轭片和一体连接于轭片上的第一齿片,使第二冲片具有第二齿片。本实施例,将子轭111a和第一分齿1121a由若干个一体冲裁形成的第一冲片叠压而成,将第二分齿1122a由若干个一体冲裁形成的第二冲片叠压而成,且由于第一冲片和第二冲片都可由冲压机一体冲压成型,故,第一冲片和第二冲片的制造过程非常简单、制造效率高、且适于大批量生产制造,从而简化了各分体11a的制造过程,提高了各分体11a的生产制造效率。同时,由于各周向封闭的子轭111a是与各第一分齿1121a一体冲压成型的,故有效保证了最终由各分体11a叠压形成的定子铁芯1a的圆度精度。Preferably, in the core split manufacturing step, the first unit is formed by laminating a plurality of first punching sheets (not shown), and the second unit is laminated by a plurality of second punching sheets (not shown). And forming the first punching piece with the yoke piece and the first tooth piece integrally connected to the yoke piece, so that the second punching piece has the second tooth piece. In this embodiment, the first yoke 111a and the first dividing teeth 1121a are formed by laminating a plurality of first punching sheets formed by integral punching, and the second dividing teeth 1122a are formed by a plurality of second punching sheets integrally formed by punching. Pressed, and since the first punching piece and the second punching piece can be integrally stamped by the punching machine, the manufacturing process of the first punching piece and the second punching piece is very simple, high in manufacturing efficiency, and suitable for mass production. The manufacturing process simplifies the manufacturing process of each of the bodies 11a, and improves the manufacturing efficiency of each of the bodies 11a. At the same time, since the circumferentially closed sub-yokes 111a are integrally formed and stamped with the respective first teeth 1121a, the roundness accuracy of the stator core 1a finally formed by the respective split bodies 11a is effectively ensured.
优选地,铁芯分体制造步骤中,使第一冲片和第二冲片在同一冲片原料上冲裁形成,并使第一齿片与第二齿片环绕轭片沿圆周方向冲裁形成。这样,利于提高原材料的利用率,并利于提高第一冲片和第二冲片的生产制造效率。具体地,当定子应用于内转子电机时,第一齿片和第二齿片沿圆周方向冲裁形成于轭片的内侧,且冲裁成型后,第一齿片与轭片保持连接,第二齿片与轭片脱离连接;当定子应用于外转子电机时,第一齿片和第二齿片沿圆周方向冲裁形成于轭片的外侧,且冲裁成型后,第一齿片与轭片保持连接并形成第一冲片,第二齿片与轭片脱离连接并形成第二冲片。Preferably, in the core split manufacturing step, the first punching piece and the second punching piece are punched out on the same punching material, and the first tooth piece and the second tooth piece are circumferentially punched around the yoke piece. form. In this way, the utilization rate of the raw materials is improved, and the manufacturing efficiency of the first punching sheet and the second punching sheet is improved. Specifically, when the stator is applied to the inner rotor motor, the first tooth piece and the second tooth piece are punched in the circumferential direction to be formed on the inner side of the yoke piece, and after the punching is formed, the first tooth piece and the yoke piece are kept connected, The two tooth pieces are disconnected from the yoke piece; when the stator is applied to the outer rotor motor, the first tooth piece and the second tooth piece are punched in the circumferential direction to be formed on the outer side of the yoke piece, and after the blank forming, the first tooth piece and the first tooth piece are The yoke remains connected and forms a first punch, the second blade being disconnected from the yoke and forming a second punch.
优选地,组装步骤中,在组装各分体11a时,使任一分体11a上的子轭111a与其余分体11a上的第二分齿1122a之间通过焊接或塑封固定或绝缘框架固定或卡扣连接方式相互连接。这样,可有效实现任一分体11a上第二分齿1122a与其余分体
11a上各子轭111a的紧固连接,保证了各分体11a之间连接的稳固可靠性。Preferably, in the assembling step, when assembling the respective split bodies 11a, the sub-yoke 111a on any of the split bodies 11a and the second split teeth 1122a on the remaining split bodies 11a are fixed by welding or plastic fixing or insulating frames or The snap connection is connected to each other. In this way, the second split tooth 1122a and the remaining split body on any split body 11a can be effectively realized.
The fastening connection of each of the sub-yokes 111a on the 11a ensures the stable reliability of the connection between the respective sub-pieces 11a.
优选地,任一分体11a上的子轭111a与其余分体11a上的第二分齿1122a之间通过卡扣连接方式相互连接。具体地,子轭111a上设有第一卡槽101a,定子齿112a的第二分齿1122a上设有第一凸台102a,各分体11a之间分别通过第一卡槽101a与第一凸台102a的卡插配合紧固连接,这样,通过第一凸台102a与第一卡槽101a的卡插配合,可有效实现任一分体11a上第二分齿1122a与其余分体11a上各子轭
111a的卡扣连接;或者,子轭111a上设有第二凸台(图未示),定子齿112a的第二分齿1122a上设有第二卡槽(图未示),各分体11a之间分别通过第二卡槽与第二凸台的卡插配合紧固连接,这样,通过第二凸台与第二卡槽的卡插配合,可有效实现任一分体11a上第二分齿1122a与其余分体11a上各子轭111a的卡扣连接。Preferably, the sub-yoke 111a on any of the split bodies 11a and the second split teeth 1122a on the remaining split bodies 11a are connected to each other by a snap connection. Specifically, the first yoke 101a is provided with a first slot 101a, and the second slot 1122a of the stator teeth 112a is provided with a first boss 102a, and each of the splits 11a passes through the first slot 101a and the first protrusion respectively. The card insertion and fastening connection of the table 102a is such that, by the engagement of the first boss 102a with the first card slot 101a, the second partial teeth 1122a and the remaining split bodies 11a on any of the split bodies 11a can be effectively realized. Sub-yoke
a snap connection of the 111a; or a second boss (not shown) is disposed on the sub-yoke 111a, and a second slot (not shown) is disposed on the second splitting tooth 1122a of the stator tooth 112a, and each of the splits 11a The connection between the second card slot and the second boss is fastened through the second card slot, so that the second branch of any of the split bodies 11a can be effectively realized by the card insertion and insertion of the second boss and the second card slot. The teeth 1122a are snap-fitted to the respective sub-yokes 111a on the remaining split bodies 11a.
具体地,如图4所示,作为上述第一卡槽101a和第一凸台102a的结构设置的一具体方案,第一卡槽101a包括等宽度凹设于子轭111a上的槽口1011a、沿槽口1011a以宽度逐渐增大的形式朝向子轭111a实体倾斜凹设的槽肩1012a、沿槽肩1012a以等宽度朝向子轭111a实体凹设的槽底1013a,第一凸台102a包括等宽度凸设于第二分齿1122a上且与槽口1011配合的台底1021a、沿台底1021a以宽度逐渐增大的形式朝远离第二分齿1122a的方向倾斜凸设且与槽肩1012a配合的台肩1022a、沿台肩1022a以等宽度朝远离第二分齿1122a的方向凸设且与槽底1013a配合的台身
1023a,这样,可实现第一卡槽101a与第一凸台102a的卡插配合连接。Specifically, as shown in FIG. 4, as a specific arrangement of the first card slot 101a and the first boss 102a, the first card slot 101a includes a notch 1011a of equal width and recessed on the sub-yoke 111a, Along the slot 1011a, the recessed shoulder 1012a is inclined toward the sub-yoke 111a in a gradually increasing width, and the groove bottom 1013a is recessed toward the sub-yoke 111a at a constant width along the shoulder 1012a. The first boss 102a includes The bottom 1021a having a width protruding from the second dividing tooth 1122a and engaging with the notch 1011 is obliquely protruded away from the second dividing tooth 1122a along the bottom of the base 1021a in a gradually increasing width and is matched with the shoulder 1012a. a shoulder 1022a, a body extending along the shoulder 1022a in a direction away from the second dividing tooth 1122a and engaging the groove bottom 1013a
1023a, in this way, the card-fitting connection of the first card slot 101a and the first boss 102a can be realized.
或者,作为上述第一卡槽101a和第一凸台102a的进一步改进方案,第一卡槽
101a除了包括上述槽口1011a、槽肩1012a和槽底1013a外,还可包括沿槽底1013a的中间位置以等宽度朝向子轭111a实体凹设的槽尾(图未示);第一凸台102a除了包括上述台底1021a、台肩1022a和台身1023a外,还可包括沿台身1023a的中间位置等宽度凸设于台身1023a上且与槽尾配合的台顶(图未示)。该实施方案,利于进一步提高第一凸台102a与第一卡槽101a卡插配合连接的紧固可靠性。Alternatively, as a further improvement of the first card slot 101a and the first boss 102a, the first card slot
In addition to the notch 1011a, the shoulder 1012a and the groove bottom 1013a, the 101a may further include a groove tail (not shown) which is recessed toward the sub-yoke 111a at an equal position along the intermediate position of the groove bottom 1013a; the first boss In addition to the base 1021a, the shoulder 1022a and the platform 1023a, the 102a may further include a top (not shown) which is disposed on the table body 1023a and has a width corresponding to the groove tail along the intermediate position of the table body 1023a. This embodiment facilitates further improving the fastening reliability of the first boss 102a being engaged with the first card slot 101a.
又或者,作为上述第一卡槽101a和第一凸台102a的另一改进方案,第一卡槽
101a除了包括上述槽口1011a、槽肩1012a和槽底1013a外,还可包括凸设于槽底
1013a内的定位凸起(图未示);第一凸台102a除了包括上述台底1021a、台肩
1022a和台身1023a外,还可包括凹设于台身1023a上且与定位凸起配合的定位槽(图未示)。该实施方案,也利于进一步提高第一凸台102a与第一卡槽101a卡插配合连接的紧固可靠性。当然了,具体应用中,第一卡槽101a和第一凸台102a也还可设为其他相互卡插配合的结构。Or alternatively, as another modification of the first card slot 101a and the first boss 102a, the first card slot
In addition to the slot 1011a, the shoulder 1012a and the groove bottom 1013a, the 101a may further include a protrusion at the bottom of the groove.
a positioning protrusion (not shown) in 1013a; the first boss 102a includes the above-mentioned base 1021a and the shoulder
The 1022a and the body 1023a may further include a positioning groove (not shown) recessed on the table body 1023a and engaging with the positioning protrusion. This embodiment also facilitates further improving the fastening reliability of the first boss 102a being engaged with the first card slot 101a. Of course, in a specific application, the first card slot 101a and the first boss 102a may also be configured to be in a mutually inserted manner.
进一步地,本发明还提供了定子,其采用上述的定子的制造方法制成。定子具体包括上述的定子铁芯1a和绕设于定子铁芯1a上的定子绕组,定子绕组包括数量与分体11a数量相同的分绕组线圈2a,各分绕组线圈2a分别绕设于各分体11a的定子齿112a上。其由于采用了上述的定子的制造方法制造,故,一方面提高了定子的生产效率,另一方面改善了定子的性能,再一方面利于降低定子的材料成本。Further, the present invention also provides a stator which is manufactured by the above-described method of manufacturing a stator. The stator specifically includes the stator core 1a described above and a stator winding wound around the stator core 1a. The stator winding includes a number of winding coils 2a of the same number as the split body 11a, and the respective winding coils 2a are respectively wound around the respective split bodies. 11a is on the stator teeth 112a. Since it is manufactured by the above-described manufacturing method of the stator, on the one hand, the production efficiency of the stator is improved, on the other hand, the performance of the stator is improved, and on the other hand, the material cost of the stator is reduced.
实施例二:Embodiment 2:
如图9~18所示,本实施例提供的定子的制造方法,在铁芯分体制造步骤中,使分体11b的数量为两个,并使其中一个分体11b具有周向封闭的第一子轭111b和若干个沿圆周方向间隔设于第一子轭111b上的第一齿112b,使另外一个分体
11具有周向封闭的第二子轭121b和若干个沿圆周方向间隔设于第二子轭121b上的第二齿122b;同时,使第一子轭111b的厚度与第二子轭121b的厚度之和、第一齿112b的厚度、第二齿122b的厚度都等于定子铁芯1b的厚度;绕线步骤,在第一齿112b和第二齿122b上分别绕制形成第一绕组线圈201b和第二绕组线圈
202b;组装步骤中,使两分体11 b以各第一齿112b与各第二齿122b分别相互错开并交替设置的形式沿轴向叠压组装。As shown in FIG. 9 to FIG. 18, in the manufacturing method of the stator provided in this embodiment, in the core split manufacturing step, the number of the split bodies 11b is two, and one of the split bodies 11b has a circumferentially closed state. a sub-yoke 111b and a plurality of first teeth 112b spaced apart from each other on the first sub-yoke 111b in the circumferential direction to make another split
11 has a second yoke 121b circumferentially closed and a plurality of second teeth 122b circumferentially spaced apart from each other on the second yoke 121b; at the same time, the thickness of the first yoke 111b and the thickness of the second yoke 121b The sum of the thickness of the first tooth 112b and the thickness of the second tooth 122b are equal to the thickness of the stator core 1b; in the winding step, the first winding coil 201b is wound on the first tooth 112b and the second tooth 122b, respectively. Second winding coil
202b. In the assembling step, the two-part body 11b is assembled in the axial direction by being offset from each other and alternately arranged in the form of the first teeth 112b and the second teeth 122b.
本实施例与实施例一的主要不同之处在于分体数量的设置方式,实施例一中的分体11a数量设为至少三个,本实施例中的分体11b数量只设有两个,但是,本实施例也解决了现有技术定子铁芯分体设计造成定子圆度精度降低、绕线完毕后组装工序复杂的技术问题。具体地,由于本实施例中,在组装完成后的定子铁芯1b上第一齿112b和第二齿122b是相互错开交替设置的,故,任意两相邻第一齿112b都间隔有一个第二齿122b的空间,任意两相邻第二齿122b之间都间隔有一个第一齿112b的空间,从而也可以使得在两分体11b的第一齿11b2和第二齿
122b上绕线都具有较大的绕线空间,这样,也可提高定子铁芯1的绕线效率和定子的槽满率,且在槽满率提高的前提下,可将构成定子绕组的铜线改为铝线,利于节省定子的材料成本;且也可使得定子铁芯1b上的线槽100b开口可设计得较小,改善了电机的性能。同时,由于第一子轭111b和第二子轭121b都是圆周封闭的,故其也保证了定子的圆度精度,且两分体11b之间不需进行焊接,简化了组装工序。The main difference between the embodiment and the first embodiment is that the number of the splits 11a is set to be at least three, and the number of the splits 11b in the embodiment is only two. However, the present embodiment also solves the technical problem that the stator core core split design of the prior art causes the accuracy of the stator to be reduced, and the assembly process is complicated after the winding is completed. Specifically, in the present embodiment, the first tooth 112b and the second tooth 122b are alternately arranged on the stator core 1b after the assembly is completed, so that any two adjacent first teeth 112b are spaced apart by one. The space of the second teeth 122b is spaced apart from any two adjacent second teeth 122b by a space of the first teeth 112b, so that the first teeth 11b2 and the second teeth of the two-part body 11b can also be made.
The windings on the 122b have a large winding space, so that the winding efficiency of the stator core 1 and the slot fullness of the stator can be improved, and the copper constituting the stator winding can be increased on the premise of increasing the tank full rate. The wire is changed to an aluminum wire, which is advantageous for saving the material cost of the stator; and the opening of the wire groove 100b on the stator core 1b can also be designed to be small, improving the performance of the motor. At the same time, since the first yoke 111b and the second yoke 121b are both circumferentially closed, the roundness accuracy of the stator is also ensured, and welding between the two divided bodies 11b is not required, which simplifies the assembly process.
优选地,如图11所示,本实施例,在绕线步骤中,使第一绕组线圈201 b和第二绕组线圈202
b分别采用连续绕线的方式形成于各第一齿112 b和各第二齿122 b上,并使第一绕组线圈201 b和第二绕组线圈202 b在两分体11
b上共形成四个线头,其中,第一绕组线圈201 b在一分体11 b上形成第一线头和第二线头,第二绕组线圈202在另一分体11
b上形成第三线头和第四线头。本实施例中,在任一分体11 b上绕线都是连续绕制的,即任一分体11
b的绕线过程都不需剪断漆包线,这样,一方面可节省断线和接线工序,从而降低了定子的生产成本,提高了定子的生产效率;另一方面可省去PCB板的需求,节省了PCB板的成本,进而进一步降低了电机的生产成本。当然了,如图12所示,具体应用中,也可使第一绕组线圈201b和第二绕组线圈202b分别采用间断绕线的方式形成于两分体11b上,即可使第一绕组线圈201b采用间断绕线的方式形成于一分体11b的各第一齿112b上,使第二绕组线圈202b采用间断绕线的方式形成于另一分体11b的各第二齿
122b上,并使第一绕组线圈201b在每个第一齿112b上都形成两线头,第二绕组线圈202b在每个第二齿122上都形成两个线头,这样,在各第一齿112b和各第二齿122b上绕线都是间断绕线的,每绕完一个第一齿112b需剪断漆包线一次,每绕完一个第二齿122b也需剪断漆包线一次。Preferably, as shown in FIG. 11, in the present embodiment, in the winding step, the first winding coil 201 b and the second winding coil 202 are made
b is formed on each of the first teeth 112b and the second teeth 122b by continuous winding, and the first winding coil 201b and the second winding coil 202b are in the two-part 11
A total of four wire ends are formed on b, wherein the first winding coil 201 b forms a first wire head and a second wire head on one of the bodies 11 b, and the second winding wire 202 is in another body 11
A third wire head and a fourth wire head are formed on b. In this embodiment, the windings on any of the split bodies 11 b are continuously wound, that is, any of the split bodies 11
The winding process of b does not need to cut the enameled wire, so that the wire breaking and wiring process can be saved on the one hand, thereby reducing the production cost of the stator and improving the production efficiency of the stator; on the other hand, the need for the PCB board can be saved, saving The cost of the PCB board further reduces the production cost of the motor. Of course, as shown in FIG. 12, in a specific application, the first winding coil 201b and the second winding coil 202b may be respectively formed on the two-part body 11b by means of intermittent winding, that is, the first winding coil 201b. The first winding 112b is formed on each of the first teeth 112b of the one body 11b, and the second winding coil 202b is formed in the second tooth of the other partial body 11b by intermittent winding.
122b, and the first winding coil 201b forms a two-wire head on each of the first teeth 112b, and the second winding coil 202b forms two wire ends on each of the second teeth 122, thus, at each of the first teeth 112b The windings on each of the second teeth 122b are intermittently wound. Each time the first tooth 112b is wound, the enameled wire is cut once, and the enameled wire is cut once for each second tooth 122b.
具体地,本实施例提供的定子也可分别适用于内转子电机(转子设于定子的外侧)和外转子电机(转子设于定子的外侧)。具体地,第一子轭111b具有第一内侧壁1111b和第一外侧壁1112b,第二子轭121b具有第二内侧壁1211b和第二外侧壁1212b,如图9~16所示,当定子应用于内转子电机上时,各第一齿112b沿圆周方向间隔分布于第一内侧壁1111b上;各第二齿122b沿圆周方向间隔分布于第二内侧壁1211b上;如图17和图18所示,当定子应用于外转子电机上时,各第一齿112b沿圆周方向间隔分布于第一外侧壁1112b上;各第二齿122b沿圆周方向间隔分布于第二外侧壁1212b上。Specifically, the stator provided in this embodiment can also be applied to an inner rotor motor (the rotor is disposed outside the stator) and an outer rotor motor (the rotor is disposed outside the stator). Specifically, the first yoke 111b has a first inner sidewall 1111b and a first outer sidewall 1112b, and the second yoke 121b has a second inner sidewall 1211b and a second outer sidewall 1212b, as shown in FIGS. 9-16, when the stator is applied In the inner rotor motor, the first teeth 112b are circumferentially distributed on the first inner side wall 1111b; the second teeth 122b are circumferentially distributed on the second inner side wall 1211b; as shown in FIGS. 17 and 18. It is shown that when the stator is applied to the outer rotor motor, the first teeth 112b are circumferentially distributed on the first outer sidewall 1112b; the second teeth 122b are circumferentially distributed on the second outer sidewall 1212b.
优选地,本实施例中,第一齿112b的数量和第二齿122b的数量之和为大于或等于四的偶数,且第一齿112b的数量和第二齿122b的数量相等,这样,使得整个定子铁芯1上,第一齿112b和第二齿122b是沿圆周方向交替设置的,其保证了在两分体11b上单独绕线时绕线头都具有足够大的活动空间,从而利于提高定子绕组的绕制效率。具体地,如图9~12所示,当电机为四槽电机(线槽100b数量为四个的电机)时,第一齿112b和第二齿122b分别设有两个,且第一齿112b和第二齿122b沿圆周方向交替分布;如113图和图14所示,当电机为六槽电机(线槽100b数量为六个的电机)时,第一齿112b和第二齿122b分别设有三个,且第一齿112b和第二齿122b沿圆周方向交替分布;如图15~18所示,当电机为十二槽电机(线槽100b数量为十二个的电机)时,第一齿112b和第二齿122b分别设有六个,且第一齿112b和第二齿122b沿圆周方向交替分布。Preferably, in this embodiment, the sum of the number of the first teeth 112b and the number of the second teeth 122b is an even number greater than or equal to four, and the number of the first teeth 112b and the number of the second teeth 122b are equal, such that On the entire stator core 1, the first teeth 112b and the second teeth 122b are alternately arranged in the circumferential direction, which ensures that the winding head has a sufficiently large movable space when winding the two separate bodies 11b separately, thereby facilitating the improvement. Winding efficiency of the stator windings. Specifically, as shown in FIG. 9 to FIG. 12, when the motor is a four-slot motor (the number of the wires 100b is four), the first tooth 112b and the second tooth 122b are respectively provided with two, and the first tooth 112b. And the second teeth 122b are alternately distributed in the circumferential direction; as shown in FIG. 113 and FIG. 14, when the motor is a six-slot motor (the number of the wires 100b is six), the first teeth 112b and the second teeth 122b are respectively provided. There are three, and the first tooth 112b and the second tooth 122b are alternately distributed in the circumferential direction; as shown in FIGS. 15 to 18, when the motor is a twelve-slot motor (the number of the wire slots 100b is twelve), the first The teeth 112b and the second teeth 122b are respectively provided with six, and the first teeth 112b and the second teeth 122b are alternately distributed in the circumferential direction.
优选地,为了实现两分体11b的连接,可于第一子轭111b上且于任意两相邻第一齿112b之间设有第一卡槽101b,各第一齿112b上设有第一凸台102b;第二子轭121b上且于任意两相邻第二齿122b之间设有第二卡槽103b,各第二齿122b上设有第二凸台104b,各第一卡槽101b分别卡插连接各第二凸台104b,各第一凸台102b分别卡插连接各第二卡槽103b。Preferably, in order to realize the connection of the two sub-pieces 11b, a first card slot 101b may be disposed on the first sub-yoke 111b and between any two adjacent first teeth 112b, and each of the first teeth 112b is provided with a first a second latching groove 103b is disposed on the second sub-yoke 121b and between any two adjacent second teeth 122b, and each of the second teeth 122b is provided with a second boss 104b, and each of the first latching slots 101b The second bosses 104b are respectively inserted into the card, and the first bosses 102b are respectively inserted and connected to the second card slots 103b.
本实施例的定子的制造方法的其它具体步骤可参照实施例一进行优化设计,在此不再详述。Other specific steps of the manufacturing method of the stator of the present embodiment can be optimized according to the first embodiment, and will not be described in detail herein.
实施例三:Embodiment 3:
如图19~23所示,本实施例提供的定子的制造方法,在铁芯分体制造步骤中,使分体11c的数量等于定子铁芯1c上定子齿112c的数量,并使各分体11c都具有一个周向封闭且厚度小于定子铁芯1c的厚度的子轭111c和一个设于子轭111c上的定子齿112c,使各子轭111c的厚度之和等于定子铁芯1c的厚度。具体地,定子铁芯1c包括定子轭10c和若干个设于定子轭10c上的定子齿112c,分体11c的数量与定子齿112c的数量相等,各分体11c的各定子齿112c在定子铁芯1c上沿圆周方向分别相互错开设置;绕线步骤,分别单独在各分体11c上绕制定子绕组,并分别在各分体11c的定子齿112c上绕制形成各分绕组线圈2c;组装步骤中,使各分体11c以各定子齿112c分别相互错开并交替设置的形式沿轴向进行叠压组装。在组装完成后的定子上,任意两相邻的定子齿112c之间都围合形成一个线槽100c。As shown in FIGS. 19 to 23, in the method of manufacturing the stator according to the present embodiment, in the core split manufacturing step, the number of the split bodies 11c is equal to the number of the stator teeth 112c on the stator core 1c, and the split bodies are made. Each of the 11c has a sub-yoke 111c which is circumferentially closed and has a thickness smaller than the thickness of the stator core 1c and a stator tooth 112c which is provided on the sub-yoke 111c so that the sum of the thicknesses of the respective sub-yokes 111c is equal to the thickness of the stator core 1c. Specifically, the stator core 1c includes a stator yoke 10c and a plurality of stator teeth 112c provided on the stator yoke 10c. The number of the split bodies 11c is equal to the number of the stator teeth 112c, and the stator teeth 112c of the respective split bodies 11c are in the stator iron. The cores 1c are respectively arranged offset from each other in the circumferential direction; in the winding step, the sub-windings are separately wound on the respective sub-pieces 11c, and the respective sub-winding coils 2c are wound on the stator teeth 112c of the respective sub-pieces 11c; In the step, each of the split bodies 11c is stacked and assembled in the axial direction with the stator teeth 112c being shifted from each other and alternately arranged. On the stator after assembly, any two adjacent stator teeth 112c are enclosed to form a wire groove 100c.
本实施例与实施例一、实施例二的主要不同之处在于分体数量的设置方式,实施例一中的分体11a数量设为至少三个,实施例二中的分体11b数量设为两个,本实施例中分体11c的数量设为与定子铁芯1c上的定子齿112c数量相同,且本实施例也解决了现有技术定子铁芯分体设计造成定子圆度精度降低、绕线完毕后组装工序复杂的技术问题。具体地,本实施例中,由于各分体11c上都只设有一个定子齿112c,故,在组装前的各分体11c上的定子齿112c两侧都具有较大的活动空间,从而使得单独在各分体11c的定子齿112c上绕线时绕线头都可具有较大的绕线空间,这样,一方面利于提高定子铁芯1c的绕线效率,另一方面利于提高定子的槽满率,且在槽满率提高的前提下,可将构成定子绕组的铜线改为铝线,利于节省定子的材料成本;再一方面使得定子铁芯1上的线槽100c开口可根据设计要求进行灵活设计,使得线槽100c的开口可设计得较小,甚至可使线槽100c设计成近似闭口槽的形式,改善了电机的性能。同时,由于各子轭111c都是圆周封闭的,故其保证了定子的圆度精度,且各分体11c之间不需进行焊接,简化了绕线完毕后的后续组装工序,进而利于提高定子的生产效率。The main difference between the embodiment and the first embodiment and the second embodiment is the manner of setting the number of the splits. The number of the splits 11a in the first embodiment is set to be at least three, and the number of the splits 11b in the second embodiment is set to be In the present embodiment, the number of the split bodies 11c is the same as the number of the stator teeth 112c on the stator core 1c, and the embodiment also solves the problem that the stator roundness accuracy of the prior art stator core split design is reduced. The technical problem of complicated assembly process after winding. Specifically, in this embodiment, since only one stator tooth 112c is provided on each of the split bodies 11c, the stator teeth 112c on each of the split bodies 11c before assembly have a large movable space, thereby making The winding head can have a large winding space when wound on the stator teeth 112c of each of the split bodies 11c, so that on the one hand, it is advantageous to improve the winding efficiency of the stator core 1c, and on the other hand, it is advantageous to increase the slot of the stator. Rate, and under the premise of increasing the tank full rate, the copper wire constituting the stator winding can be changed to aluminum wire, which is beneficial to save the material cost of the stator; on the other hand, the opening of the wire slot 100c on the stator core 1 can be designed according to the design requirements. The flexible design allows the opening of the wire groove 100c to be designed to be small, and even the wire groove 100c can be designed in the form of an approximately closed groove, improving the performance of the motor. At the same time, since each of the sub-yokes 111c is circumferentially closed, it ensures the roundness precision of the stator, and welding between the split bodies 11c is not required, which simplifies the subsequent assembly process after the winding is completed, thereby facilitating the improvement of the stator. Production efficiency.
具体地,本实施例提供的定子铁芯1c也可分别适用于内转子电机(转子设于定子的外侧)和外转子电机(转子设于定子的外侧),即各定子齿112c可都分别设于各子轭111c的内侧壁1111c上,也可都分别设于各子轭111c的外侧壁1112c上。Specifically, the stator core 1c provided in this embodiment may also be respectively applied to an inner rotor motor (the rotor is disposed on the outer side of the stator) and an outer rotor motor (the rotor is disposed on the outer side of the stator), that is, each of the stator teeth 112c may be separately provided. The inner side walls 1111c of the respective sub-yokes 111c may be provided on the outer side walls 1112c of the respective sub-yokes 111c, respectively.
具体地,本实施例中,当电机为三槽电机(线槽100c数量为三个、定子齿112c数量为三个的电机)时,如图19~21所示,定子齿112c的数量为三个,分体11c的数量对应设为三个,每个分体11c都包括一个周向封闭且厚度为定子轭10c厚度的三分之一的子轭111c和一个定子齿112c;当电机为四槽电机时,如图22和图23所示,定子齿112c的数量为四个,分体11c的数量对应设为四个,每个分体11c都包括周向封闭且一个厚度为定子轭10c厚度的四分之一的子轭111c和一个定子齿
112c;当电机为九槽电机时,定子齿112c的数量为九个,分体11c的数量对应设为九个,每个分体11c都包括周向封闭且一个厚度为定子轭10c厚度的九分之一的子轭111c和一个定子齿112c。Specifically, in the embodiment, when the motor is a three-slot motor (the number of the wire grooves 100c is three and the number of the stator teeth 112c is three), as shown in FIGS. 19 to 21, the number of the stator teeth 112c is three. The number of the split bodies 11c is correspondingly set to three, and each of the split bodies 11c includes a sub-yoke 111c and a stator tooth 112c which are circumferentially closed and have a thickness of one third of the thickness of the stator yoke 10c; when the motor is four In the case of the slot motor, as shown in FIGS. 22 and 23, the number of the stator teeth 112c is four, and the number of the split bodies 11c is set to four, and each of the split bodies 11c includes a circumferentially closed one and a thickness of the stator yoke 10c. a quarter of the thickness of the sub-yoke 111c and a stator tooth
112c; when the motor is a nine-slot motor, the number of the stator teeth 112c is nine, and the number of the split bodies 11c is correspondingly set to nine, and each of the split bodies 11c includes a circumferentially closed and a thickness nine of the thickness of the stator yoke 10c. One sub-yoke 111c and one stator tooth 112c.
优选地,为了实现任一分体11c上定子齿112c与其余分体11c上各子轭111c的紧固连接,本实施例,于各子轭111c上都设有数量比定子齿112c数量少一个的第一卡槽101c,各定子齿112c的定子齿112c上都设有第一凸台102c,各分体11之间分别通过各第一卡槽101c与各第一凸台102c的卡插配合紧固连接,这样,通过各第一凸台102c与各第一卡槽101c的卡插配合,可有效实现任一分体11c上定子齿
112c与其余分体11c上各子轭111c的紧固连接;Preferably, in order to achieve the fastening connection between the stator teeth 112c of any of the split bodies 11c and the respective sub-yokes 111c of the remaining split bodies 11c, in this embodiment, the number of the stator yokes 111c is less than one of the number of stator teeth 112c. The first card slot 101c is provided with a first boss 102c on the stator teeth 112c of each of the stator teeth 112c, and each of the split bodies 11 is inserted into and engaged with each of the first bosses 102c through the first card slots 101c. The fastening is fastened, so that the stator teeth of any of the split bodies 11c can be effectively realized by the snap fit of each of the first bosses 102c and the first card slots 101c.
a fastening connection of 112c to each of the sub-yokes 111c of the remaining split body 11c;
本实施例的定子的制造方法的其它具体步骤可参照实施例一进行优化设计,在此不再详述。Other specific steps of the manufacturing method of the stator of the present embodiment can be optimized according to the first embodiment, and will not be described in detail herein.
以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内所作的任何修改、等同替换或改进等,均应包含在本发明的保护范围之内。The above is only the preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. Within the scope.
Claims (12)
- 定子的制造方法,其特征在于:包括如下步骤: A method of manufacturing a stator, comprising: the following steps:铁芯分体制造步骤,制造至少两个可轴向叠压形成定子铁芯的分体,并使各所述分体都具有一个周向封闭的子轭和至少一个设于所述子轭上的定子齿;a core split manufacturing step of fabricating at least two split bodies axially laminated to form a stator core, and each of said split bodies having a circumferentially closed sub-yoke and at least one disposed on said sub-yoke Stator teeth;绕线步骤,分别在各所述分体上绕制定子绕组,并使各所述分体的所述子齿上分别形成各分绕组线圈;a winding step of winding a sub-winding on each of the split bodies, and forming respective sub-winding coils on the sub-tooth of each of the split bodies;组装步骤,将绕设有各所述分绕组线圈的各所述分体以各所述定子齿分别相互错开的形式沿轴向叠压形成所述定子。In the assembling step, each of the splits around each of the divided winding coils is axially laminated to form the stator in such a manner that each of the stator teeth is offset from each other.
- 如权利要求1所述的定子的制造方法,其特征在于:所述铁芯分体制造步骤中,使所述分体的数量为至少三个,并使各所述分体都具有一个周向封闭且厚度小于所述定子铁芯的厚度的所述子轭和至少一个设于所述子轭上且厚度与所述定子铁芯的厚度相等的所述定子齿;A method of manufacturing a stator according to claim 1, wherein in said core split manufacturing step, said number of said split bodies is at least three, and each of said split bodies has a circumferential direction The sub-yoke closed and having a thickness smaller than a thickness of the stator core and at least one of the stator teeth disposed on the sub-yoke and having a thickness equal to a thickness of the stator core;所述组装步骤中,使各所述分体以各所述定子齿分别相互错开的形式沿轴向进行叠压组装,并使任意一所述分体的一个所述定子齿的相邻两侧都分别为另外两所述分体上的两所述定子齿。In the assembling step, each of the split bodies is assembled in the axial direction in such a manner that each of the stator teeth is mutually offset, and adjacent sides of one of the stator teeth of any one of the split bodies are provided. They are respectively two of the stator teeth on the other two of the split bodies.
- 如权利要求2所述的定子的制造方法,其特征在于:所述定子铁芯的所述定子齿的数量之和为三的整数倍,该整数倍大于或等于一倍,且在所述铁芯分体制造步骤中,使所述分体的数量为三。A method of manufacturing a stator according to claim 2, wherein a sum of the number of said stator teeth of said stator core is an integral multiple of three, said integer multiple being greater than or equal to one time, and said iron In the core split manufacturing step, the number of the splits is three.
- 如权利要求2所述的定子的制造方法,其特征在于:所述定子铁芯的所述定子齿的数量之和为大于二的偶数,且在所述铁芯分体制造步骤中,使所述分体的数量为大于二的偶数。A method of manufacturing a stator according to claim 2, wherein a sum of the number of said stator teeth of said stator core is an even number greater than two, and in said core split manufacturing step, The number of said fragments is an even number greater than two.
- 如权利要求1所述的定子的制造方法,其特征在于:所述铁芯分体制造步骤中,使所述分体的数量为两个,并使其中一个所述分体具有周向封闭的第一子轭和若干个沿圆周方向间隔设于所述第一子轭上的第一齿,使另外一个所述分体具有周向封闭的第二子轭和若干个沿圆周方向间隔设于所述第二子轭上的第二齿;同时,使所述第一子轭的厚度与所述第二子轭的厚度之和、所述第一齿的厚度、所述第二齿的厚度都等于所述定子铁芯的厚度;A method of manufacturing a stator according to claim 1, wherein in said core split manufacturing step, said number of said split bodies is two, and one of said split bodies is circumferentially closed. a first yoke and a plurality of first teeth spaced apart from each other on the first yoke in a circumferential direction, such that the other of the split bodies has a circumferentially closed second yoke and a plurality of circumferentially spaced apart a second tooth on the second yoke; at the same time, a sum of a thickness of the first yoke and a thickness of the second yoke, a thickness of the first tooth, and a thickness of the second tooth Both equal to the thickness of the stator core;所述组装步骤中,使所述第一分体和所述第二分体以各所述第一齿与各所述第二齿分别相互错开并交替设置的形式沿轴向叠压组装。In the assembling step, the first split body and the second split body are assembled in an axially stacked manner in such a manner that each of the first teeth and each of the second teeth are respectively shifted from each other and alternately arranged.
- 如权利要求1所述的定子的制造方法,其特征在于:所述铁芯分体制造步骤中,使所述分体的数量等于所述定子铁芯上定子齿的数量,并使各所述分体都具有一个周向封闭且厚度小于所述定子铁芯的厚度的所述子轭和一个设于所述子轭上的所述定子齿,使各所述子轭的厚度之和等于所述定子铁芯的厚度;A method of manufacturing a stator according to claim 1, wherein in said core split manufacturing step, said number of said split bodies is equal to the number of stator teeth on said stator core, and said each The split body has a sub-yoke circumferentially closed and having a thickness smaller than a thickness of the stator core and a stator tooth provided on the sub-yoke, such that the sum of the thicknesses of the sub-yokes is equal to The thickness of the stator core;所述组装步骤中,使各所述分体以各所述定子齿分别相互错开的形式沿轴向进行叠压组装。In the assembling step, each of the split bodies is assembled in the axial direction in such a manner that each of the stator teeth is shifted from each other.
- 如权利要求1至6任一项所述的定子的制造方法,其特征在于:所述铁芯分体制造步骤中,使各所述分体的所述子轭的厚度都相等。The method of manufacturing a stator according to any one of claims 1 to 6, wherein in the core split manufacturing step, the thicknesses of the sub-yokes of the respective divided bodies are equal.
- 如权利要求1至6任一项所述的定子的制造方法,其特征在于:所述铁芯分体制造步骤中,先分别制造第一单元和第二单元,并使所述第一单元具有所述子轭和厚度与所述子轭的厚度相等的第一分齿,使所述第二单元具有厚度与所述第一分齿的厚度之和等于所述定子齿的厚度的第二分齿;再将所述第一单元和所述第二单元沿轴向叠压连接形成所述分体。The method of manufacturing a stator according to any one of claims 1 to 6, wherein in the core split manufacturing step, the first unit and the second unit are separately manufactured, and the first unit is provided The sub-yoke and a first partial tooth having a thickness equal to a thickness of the sub-yoke, the second unit having a second portion having a thickness equal to a thickness of the first partial tooth equal to a thickness of the stator tooth And locating the first unit and the second unit in an axial direction to form the split body.
- 如权利要求8所述的定子的制造方法,其特征在于:所述铁芯分体制造步骤中,使所述第一单元由若干个第一冲片叠压而成,使所述第二单元由若干个第二冲片叠压而成,并使所述第一冲片具有轭片和一体连接于所述轭片上的第一齿片,使所述第二冲片具有第二齿片。The method of manufacturing a stator according to claim 8, wherein in the step of manufacturing the core, the first unit is formed by laminating a plurality of first punches, and the second unit is The plurality of second punching sheets are laminated, and the first punching piece has a yoke piece and a first tooth piece integrally connected to the yoke piece, so that the second punching piece has a second tooth piece.
- 如权利要求9所述的定子的制造方法,其特征在于:所述铁芯分体制造步骤中,使所述第一冲片和所述第二冲片在同一冲片原料上冲裁形成,并使所述第一齿片与所述第二齿片环绕所述轭片沿圆周方向冲裁形成。The method of manufacturing a stator according to claim 9, wherein in the step of manufacturing the core, the first punch and the second punch are formed by punching on the same punch material. And forming the first tooth piece and the second tooth piece in a circumferential direction around the yoke piece.
- 如权利要求1至6任一项所述的定子的制造方法,其特征在于:所述组装步骤中,在组装各所述分体时,使任一所述分体上的所述子轭与其余所述分体上的所述定子齿之间通过焊接或塑封固定或绝缘框架固定或卡扣连接方式相互连接。The method of manufacturing a stator according to any one of claims 1 to 6, wherein in said assembling step, said sub-yoke on any of said split bodies is assembled when said each of said split bodies is assembled The stator teeth on the remaining split bodies are connected to each other by soldering or plastic sealing or insulating frame fixing or snap connection.
- 定子,其特征在于:该定子采用如权利要求1至11任一项所述的定子的制造方法制成。 A stator characterized in that the stator is produced by the method of manufacturing the stator according to any one of claims 1 to 11.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108347116A (en) * | 2018-04-27 | 2018-07-31 | 广东美的环境电器制造有限公司 | A kind of Insulating frame, field frame assembly and motor |
CN108566058A (en) * | 2018-06-05 | 2018-09-21 | 新誉轨道交通科技有限公司 | Electric machine iron core fixing device and electric machine iron core fixing means |
CN110350694A (en) * | 2019-08-21 | 2019-10-18 | 苏州金莱克汽车电机有限公司 | A kind of low noise and the strong permanent magnet synchronous AC motor of fan-out capability |
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CN103259348A (en) * | 2013-01-07 | 2013-08-21 | 广东威灵电机制造有限公司 | Stator |
JP2013223414A (en) * | 2012-04-19 | 2013-10-28 | Asmo Co Ltd | Stator |
CN104377845A (en) * | 2014-11-19 | 2015-02-25 | 广东威灵电机制造有限公司 | Stator iron core, stator and motor |
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JP2013223414A (en) * | 2012-04-19 | 2013-10-28 | Asmo Co Ltd | Stator |
CN103259348A (en) * | 2013-01-07 | 2013-08-21 | 广东威灵电机制造有限公司 | Stator |
CN104377845A (en) * | 2014-11-19 | 2015-02-25 | 广东威灵电机制造有限公司 | Stator iron core, stator and motor |
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CN108347116A (en) * | 2018-04-27 | 2018-07-31 | 广东美的环境电器制造有限公司 | A kind of Insulating frame, field frame assembly and motor |
CN108347116B (en) * | 2018-04-27 | 2024-04-16 | 广东美的环境电器制造有限公司 | Insulating frame, stator assembly and motor |
CN108566058A (en) * | 2018-06-05 | 2018-09-21 | 新誉轨道交通科技有限公司 | Electric machine iron core fixing device and electric machine iron core fixing means |
CN108566058B (en) * | 2018-06-05 | 2024-03-19 | 新誉轨道交通科技有限公司 | Motor iron core fixing device and motor iron core fixing method |
CN110350694A (en) * | 2019-08-21 | 2019-10-18 | 苏州金莱克汽车电机有限公司 | A kind of low noise and the strong permanent magnet synchronous AC motor of fan-out capability |
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