CN113162283A - Stator, motor, household appliance and manufacturing method of stator - Google Patents
Stator, motor, household appliance and manufacturing method of stator Download PDFInfo
- Publication number
- CN113162283A CN113162283A CN202110307008.2A CN202110307008A CN113162283A CN 113162283 A CN113162283 A CN 113162283A CN 202110307008 A CN202110307008 A CN 202110307008A CN 113162283 A CN113162283 A CN 113162283A
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- China
- Prior art keywords
- stator
- stator core
- winding
- core
- yoke
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/024—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with slots
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
Abstract
The invention provides a stator, a motor, a household appliance and a manufacturing method of the stator, wherein the stator comprises the following components: a stator core including a tooth portion and a yoke portion; the tooth part penetrates through the insulating part, and a first gap is formed between the insulating part and the yoke part; the choke ring is arranged between the yoke part and the insulating part and used for plugging the first gap. According to the invention, the choke ring is arranged between the yoke part and the insulating part, so that the gap between the yoke part and the insulating part is blocked. In the process of injection molding of the stator, the first gap between the yoke part of the stator core and the insulating part is arranged, so that the injection molding material cannot flow to the yoke part of the stator core, and the injection molding material cannot be remained in the stator when the injection molding process is completed.
Description
Technical Field
The invention belongs to the technical field of injection molding motors, and particularly relates to a stator, a motor, a household appliance and a manufacturing method of the stator.
Background
The motor is one of the necessary components of various electromechanical products. The injection molding of electrons is needed in the process of manufacturing the injection molding motor, and a part of injection molding material can remain in the stator after the injection molding is finished.
Disclosure of Invention
The present invention is directed to solving one of the technical problems of the prior art or the related art.
To this end, a first aspect of the invention proposes a stator.
A second aspect of the invention proposes an electric machine.
A third aspect of the invention proposes a household appliance.
A fourth aspect of the invention provides a method of manufacturing a stator.
A fifth aspect of the invention proposes a stator.
A sixth aspect of the invention provides an electric machine.
A seventh aspect of the present invention proposes a household appliance.
In view of this, a stator according to a first aspect of the present invention includes: a stator core including a tooth portion and a yoke portion; the tooth part penetrates through the insulating part, and a first gap is formed between the insulating part and the yoke part; the choke ring is arranged between the yoke part and the insulating part and used for plugging the first gap.
The invention provides a stator which comprises a stator core, an insulating piece and a choke ring. Wherein, stator core includes yoke portion and tooth portion. The insulating part encloses to close and is formed with the cavity, and tooth portion wears to establish with the cavity of insulating part, and the insulating part cover establish with stator core's tooth portion, the insulating part will be used for wrapping around the tooth portion of establishing the winding and carry out the cladding to improve stator core's tooth portion and the insulating properties between the winding. The tooth part and the yoke part of the stator core are connected, the insulator is sleeved on the tooth part, and a first gap is reserved between the insulator and the yoke part. The choke ring is arranged between the yoke part and the insulating part and can be arranged in the first gap, so that the gap between the yoke part and the insulating part is blocked. In the process of injection molding of the stator, the first gap between the yoke part of the stator core and the insulating part is arranged, so that the injection molding material cannot flow to the yoke part of the stator core, and the injection molding material cannot be remained in the stator when the injection molding process is completed.
Including a plurality of yokes and a plurality of tooth portion in the motor, a plurality of yokes can enclose and close and form the stator hole, in the assembling process of electron, need set up the rotor in the stator hole. According to the invention, the choke ring for plugging the first gap is arranged between the yoke part of the stator core and the insulating part, so that injection molding materials are prevented from directly entering the stator hole in the injection molding process. Therefore, the step of manually cleaning the stator hole is not required to be added, the additional processes are reduced, the labor cost is reduced, and the production efficiency of the motor is improved.
It will be appreciated that the choking ring may alternatively be of a resilient construction. Will have elastic choked flow ring setting between stator core's yoke portion and insulating part, choked flow ring can receive the extrusion production elastic deformation of yoke portion and insulating part, choked flow ring and the laminating degree between insulating part and the stator core, make and not leave the gap between choked flow ring and insulating part and the stator core, avoid the material of moulding plastics to enter into stator core's yoke portion through the gap and enclose the stator that closes the formation downthehole.
In addition, according to the stator in the above technical solution provided by the present invention, the following additional technical features may be further provided:
in one possible design, the contour line of the outer circumference of the choke ring is a regular polygon and the contour line of the inner circumference of the choke ring is a circle in a cross section perpendicular to the axis of the choke ring.
In this design, the choke ring is annular in shape, and the annular choke ring can be disposed at a position between the circumferentially distributed yoke portion and the insulating member. The section perpendicular to the axis of the flow blocking ring is cut, the flow blocking ring on the section is in a regular polygon with the outer contour line and is in a circular annular structure with the inner contour line. The outer fringe that closes the stator hole that forms is enclosed to stator core's yoke portion is circular, so set up the inside contour line of choking ring into circular, make choking ring and stator core's yoke portion laminate more. The insulating part selects to be insulating frame, and the contour line of the inboard that the insulating part encloses to close and forms is regular polygon, sets up the contour line through the periphery with the ring that chokes flow into regular polygon to the laminating degree of the ring that chokes flow with the insulating part has been improved. Through carrying out reasonable setting to the shape of choked flow ring, can improve the laminating degree of choked flow ring and insulator and stator core's yoke portion to choked flow ring is to injection molding material's shutoff effect.
In one possible design, the number of stator cores is at least three, and the number of stator cores is the same as the number of sides of the regular polygon.
In this design, the number of stator cores is set to be plural, and at least three. In the invention, a single stator core comprises a yoke part and a tooth part, and after the stator core and the insulating part are assembled, the insulating part is set to be a structure capable of being disassembled and assembled. And assembling a plurality of stator cores together through an insulating piece to form an integral stator structure. The choke ring is sleeved at the tooth part of the stator core, the yoke part of the stator core is surrounded to form a stator hole, and the stator hole is used for setting a rotor structure of the motor.
Choke ring is for setting up the position between stator core's yoke portion and insulating part, the insulating part selects to insulating frame structure, install a plurality of stator core on insulating frame, the contour line that insulating frame is close to one side of yoke portion is regular polygon, quantity through setting up regular polygon is the same with stator core's quantity, stator core's quantity is the same with insulating frame's the limit number of enclosing the profile that closes formation, can improve the laminating degree of choke ring and insulating part, further improve the shutoff effect of choke ring to injection moulding material, further avoid injection moulding material to enter into stator core and enclose and close the stator hole of formation downthehole.
It can be understood that the specific shape of the specific choke ring can be reasonably set according to the shape of the insulating member, so that the fit degree of the choke ring and the insulating member is improved.
In some embodiments, the number of the stator cores is eight, and the winding is wound on the insulator after the insulator is fitted over the teeth of the stator cores. The contour line of the inner periphery of the choke ring is set to be circular and matched with the yoke, and the contour line of the outer periphery of the insulating piece is set to be octagonal and matched with the insulating piece. The configuration hinders the position between choking ring to insulator and stator core's yoke portion to play the sealed effect of material of moulding plastics, carrying out the in-process that the compound die was moulded plastics to the stator, avoid the material of moulding plastics to enter into the stator core yoke portion and enclose the stator hole of closing the formation.
In one possible design, the number of the stator cores is at least three, a stator slot is defined between two adjacent yoke parts, and the choke ring comprises: a body located between the yoke and the insulator; and the shielding part is arranged on the body and extends along the axial direction of the body, and the shielding part is arranged corresponding to the stator slot.
In the design, the yoke parts of at least three stator cores surround to form a stator hole, any two adjacent yoke parts are arranged at intervals, and a stator slot is defined between the two adjacent yoke parts. In the injection molding process, the injection molding material is required to cover the injection molding layer outside the windings of the stator, and the injection molding material is filled between each stator core wound with the windings.
The choke ring comprises a body and a shielding part, the body is annular, the body is arranged at a position between the insulating part and the yoke part, the shielding part is connected with the body, and the shielding part extends along the axial direction of the body. The shielding part is in the projection range along the axial direction of the body. The shielding part is arranged corresponding to the stator slot and can block the stator slot, and injection molding materials are prevented from entering a stator hole formed by surrounding a yoke part of the stator core through the stator slot in the axial direction. According to the invention, the stator groove is blocked by the stator shielding part, so that the flow blocking ring can seal the stator groove, and the sealing effect of the flow blocking ring on the injection molding material is further improved.
In some embodiments, the blocking portion and the body are integrally formed, that is, the choke ring is integrally formed, so that the choke ring has better integrity.
In one possible design, the choke ring further includes: and the convex rib is arranged on the shielding part, extends into the stator slot and is used for plugging the stator slot.
In this design, the choking ring is still including setting up the protruding muscle on the occlusion part, and the protruding muscle sets up on the occlusion part, and the protruding muscle extends to the stator slot in, carries out the shutoff to the stator slot to the runner of the material of moulding plastics that the stator slot formed is plugged. In the injection molding process, the injection molding material is prevented from flowing into a stator hole formed by encircling of a yoke part of the stator core through the stator slot along the axial direction of the choke ring, and the sealing performance in the injection molding process is further improved.
In some embodiments, the rib, the shield portion and the body are all integrally formed structures.
In one possible design, the choking rings are two, and the two choking rings are respectively positioned at two ends of the yoke part along the axial direction of the choking rings.
In this design, the number of choke rings is set to two. The plurality of stator cores are assembled together by an insulator, and yoke portions of the plurality of stator cores are wound to form a stator hole. The stator hole and the choke ring are coaxially arranged, and two ends of a yoke part of the stator core are respectively provided with the choke ring in the axial direction of the choke ring.
In-process moulding plastics to the stator, the yoke portion that is located the stator bore both ends all contacts with the material of moulding plastics, both ends through yoke portion at stator core all set up the choking ring, then can avoid the material of moulding plastics to get into stator core's yoke portion through the both ends of yoke portion and enclose the stator bore of closing formation, all carry out the shutoff to the first clearance that is located yoke portion both ends promptly, make the inside of iron core form airtight space, guarantee that the material of moulding plastics that is located yoke portion both ends at the in-process of moulding plastics flows outside, it enters into inside the iron core to have avoided the material of moulding plastics, the step of carrying out secondary treatment to stator core inside after the completion of moulding plastics has been saved.
In one possible design, the stator further comprises a winding, the insulation comprising: the winding is wound on the sub-insulating pieces, and the number of the sub-insulating pieces is the same as that of the stator cores; and the connecting piece is arranged on the sub-insulating pieces, and at least two sub-insulating pieces are connected through the connecting piece.
In this design, the insulating part includes a plurality of sub-insulating parts, and stator core's quantity also sets up to a plurality ofly, and stator core's quantity is the same with sub-insulating part's quantity, all overlaps on an individual stator core's the tooth and establishes a sub-insulating part. The winding is wound on the sub-insulator, the winding is wound at a position corresponding to the tooth part of the stator core, and the sub-insulator is arranged at a position between the winding and the tooth part of the stator core, so that the insulating property between the tooth part of the stator core and the winding can be improved.
The insulating members further include connecting members provided between the sub-insulating members, by which the sub-insulating members can be connected together. In the process of assembling the stator, firstly, the independent sub-insulators and the independent stator core are assembled together, the windings are wound on the sub-insulators, then the plurality of sub-insulators are connected together through the connecting pieces arranged on the sub-insulators, and the yoke part of the stator core is surrounded to form a stator hole. And carrying out die assembly and injection molding on the assembled stator to complete the manufacture of the stator.
The insulator includes a plurality of detachably connected sub-insulators, which has an effect of facilitating assembly of the stator.
In one possible design, the sub-insulator includes: a first isolation section; the winding part is wound on the winding part, and two adjacent winding parts surround to form a winding groove; the second isolation part is connected with the other end of the winding part, and one side, away from the winding part, of the second isolation part is attached to the insulating part.
In this design, the sub-insulator includes a first isolation portion, a second isolation portion, and a winding portion. The first isolation part, the second isolation part and the winding part are connected, and the winding part is located between the first isolation part and the second isolation part. The middle part of the winding part is also provided with a cavity matched with the tooth part of the stator core, and the sub-insulator can be sleeved on the stator core through the cavity. Before the sub-insulator and the stator core are assembled, the winding can be wound on the winding of the sub-insulator, and then the sub-insulator with the winding is sleeved on the stator core, so that the effect of simplifying the assembly steps is realized.
First isolation portion and second isolation portion are located the both sides of winding respectively, and first isolation portion and second isolation portion can insulate the both sides of winding, improve the insulating properties of winding. The two sides of the second isolation part are respectively attached to the winding and the insulating part. One side laminating that winding was kept away from to insulating part and second isolation part is in the same place, can carry out the shutoff to the first clearance between second isolation part and stator core's yoke portion, avoids at the in-process of moulding plastics, and the material of moulding plastics enters into inside the stator through first clearance.
According to a second aspect of the present invention, there is provided an electric machine comprising: the stator as in the first aspect above, the stator comprising a stator bore; and the rotor assembly is arranged in the stator hole and is coaxial with the stator core.
The motor provided by the invention comprises a stator and a rotor assembly, wherein the stator is provided with a stator hole, the rotor assembly is assembled in the stator hole, and the rotor assembly and a stator iron core are coaxially arranged. The stator is any one of the stators possibly designed in the first aspect, so that the stator has all the beneficial technical effects of the stator in any one of the possible designs, and redundant description is not repeated herein.
In one possible design, the motor further comprises an output shaft, the output shaft is connected with the rotor assembly, and the output shaft and the stator core are arranged coaxially.
In the design, the stator is connected with a power supply, a magnetic field is generated after the stator is electrified, the rotor assembly drives the output shaft to rotate under the action of the magnetic field generated by the stator, and the stability of the operation of the motor is improved by coaxially arranging the output shaft, the rotor assembly and the stator iron core.
According to a third aspect of the present invention, there is provided a household appliance comprising: the motor as in the second aspect described above.
The present invention provides a household appliance comprising a motor as in the second aspect above. Therefore, the motor has all the beneficial technical effects of the motor in any possible design, and redundant description is not repeated herein.
In one possible design, the motor includes an output shaft that is coupled to the rotor assembly. The household appliance further comprises a driven member connected with the output shaft.
In some embodiments, the household appliance is selected as a fan, the fan comprises fan blades and a motor in any one of the possible designs described above, the motor further comprising an output shaft. The fan blades are connected with the output shaft.
It should be noted that the motor can also be installed in household appliances such as a dust collector, a range hood, an air conditioner, and a washing machine.
According to a fourth aspect of the present invention, there is provided a method of manufacturing a stator, for manufacturing a stator as in any one of the possible designs of the first aspect, comprising: assembling a winding and an insulating piece on a stator core, wherein a first gap is formed between the insulating piece and a yoke part of the stator core; assembling a choke ring in the first gap; and carrying out matched die injection molding on the stator core provided with the choking ring to obtain the stator.
The manufacturing method of the stator provided by the invention specifically comprises the following steps: the stator core is arranged on the insulating part in a penetrating mode, the winding is wound on the insulating part, a first gap is reserved between the insulating part and a yoke part of the stator core in the process of sleeving the insulating part, and therefore the stator body is manufactured. The choke ring is arranged at a position between the yoke part of the insulating part and the yoke part of the stator core, the first gap is blocked by the choke ring, and injection molding materials are prevented from entering the inside of the stator through the first gap in the injection molding process. And (3) putting the stator main body provided with the choking ring into a mould for injection molding to obtain the injection molded stator.
The stator manufactured by the method comprises a stator core, an insulating piece and a choke ring. Wherein, stator core includes yoke portion and tooth portion. The insulating part encloses to close and is formed with the cavity, and tooth portion wears to establish with the cavity of insulating part, and the insulating part cover establish with stator core's tooth portion, the insulating part will be used for wrapping around the tooth portion of establishing the winding and carry out the cladding to improve stator core's tooth portion and the insulating properties between the winding. The tooth part and the yoke part of the stator core are connected, the insulator is sleeved on the tooth part, and a first gap is reserved between the insulator and the yoke part. The choke ring is arranged between the yoke part and the insulating part and can be arranged in the first gap, so that the gap between the yoke part and the insulating part is blocked. In the process of injection molding of the stator, the first gap between the yoke part of the stator core and the insulating part is arranged, so that the injection molding material cannot flow to the yoke part of the stator core, and the injection molding material cannot be remained in the stator when the injection molding process is completed.
Including a plurality of yokes and a plurality of tooth portion in the motor, a plurality of yokes can enclose and close and form the stator hole, in the assembling process of electron, need set up the rotor in the stator hole. According to the invention, the choke ring for plugging the first gap is arranged between the yoke part of the stator core and the insulating part, so that injection molding materials are prevented from directly entering the stator hole in the injection molding process. Therefore, the step of manually cleaning the stator hole is not required to be added, the additional processes are reduced, the labor cost is reduced, and the production efficiency of the motor is improved.
It will be appreciated that the choking ring may alternatively be of a resilient construction. Will have elastic choked flow ring setting between stator core's yoke portion and insulating part, choked flow ring can receive the extrusion production elastic deformation of yoke portion and insulating part, choked flow ring and the laminating degree between insulating part and the stator core, make and not leave the gap between choked flow ring and insulating part and the stator core, avoid the material of moulding plastics to enter into stator core's yoke portion through the gap and enclose the stator that closes the formation downthehole.
In addition, according to the method for manufacturing the stator in the above technical solution provided by the present invention, the following additional technical features may be further provided:
in one possible design, the step of assembling the winding and the insulator to the stator core specifically includes: sleeving an insulator on a tooth part of a stator core, wherein a first gap is formed between the insulator and a yoke part; and winding the winding on the insulating part.
In this design, the insulating part includes a plurality of sub-insulating parts, and stator core's quantity also sets up to a plurality ofly, and stator core's quantity is the same with sub-insulating part's quantity, all overlaps on an individual stator core's the tooth and establishes a sub-insulating part. The winding is wound on the sub-insulator, the winding is wound at a position corresponding to the tooth part of the stator core, and the sub-insulator is arranged at a position between the winding and the tooth part of the stator core, so that the insulating property between the tooth part of the stator core and the winding can be improved.
The insulating members further include connecting members provided between the sub-insulating members, by which the sub-insulating members can be connected together. In the process of assembling the stator, firstly, the independent sub-insulators and the independent stator core are assembled together, the windings are wound on the sub-insulators, then the plurality of sub-insulators are connected together through the connecting pieces arranged on the sub-insulators, and the yoke part of the stator core is surrounded to form a stator hole. And carrying out die assembly and injection molding on the assembled stator to complete the manufacture of the stator.
In the process of assembling the insulating part, the windings and the stator iron cores, the windings are wound in the sub-insulating parts of the insulating part, and then the sub-insulating parts wound with the windings and the stator iron cores are assembled in a one-to-one correspondence mode. The sub-insulators which are assembled by the stator iron core are connected together through the connecting piece, so that a stator main body is formed, and the effect of facilitating assembly of the stator main body is achieved.
It is worth mentioning that the sub-insulator includes a first isolation portion, a second isolation portion and a winding portion. The first isolation part, the second isolation part and the winding part are connected, and the winding part is located between the first isolation part and the second isolation part. The middle part of the winding part is also provided with a cavity matched with the tooth part of the stator core, and the sub-insulator can be sleeved on the stator core through the cavity. Before the sub-insulator and the stator core are assembled, the winding can be wound on the winding of the sub-insulator, and then the sub-insulator with the winding is sleeved on the stator core, so that the effect of simplifying the assembly steps is realized.
First isolation portion and second isolation portion are located the both sides of winding respectively, and first isolation portion and second isolation portion can insulate the both sides of winding, improve the insulating properties of winding. The two sides of the second isolation part are respectively attached to the winding and the insulating part. One side laminating that winding was kept away from to insulating part and second isolation part is in the same place, can carry out the shutoff to the first clearance between second isolation part and stator core's yoke portion, avoids at the in-process of moulding plastics, and the material of moulding plastics enters into inside the stator through first clearance.
In a possible design, the step of performing mold clamping and injection molding on the stator core equipped with the choke ring specifically includes: sleeving the stator core assembled with the choking ring on the core, and enabling the core to be attached to the inner side wall of the choking ring; the core that will overlap and be equipped with stator core sets up in the outer mould, moulds plastics in the outer mould to form the layer of moulding plastics of cladding stator core and winding.
In this design, will establish on the core with the stator core cover that insulating part and winding assembly were accomplished, set up the core that is equipped with stator core in outer mould with the cover, to moulding plastics in the outer mould, pour into the material of moulding plastics in the outer mould to carry out the layer of moulding plastics of cladding at the surface of stator main part.
With the ring and the core cooperation setting of chocking the flow, can avoid moulding plastics the in-process, the material of moulding plastics enters into inside the stator through the core and the gap between the ring of chocking the flow.
According to a fifth aspect of the present invention, there is provided a stator manufactured by the method of manufacturing a stator according to any one of the possible designs of the fourth aspect.
The stator proposed by the present invention is manufactured by the manufacturing method of the stator in any one of the possible designs in the fourth aspect, and therefore, the present invention has all the beneficial technical effects of the manufacturing method of the stator in any one of the possible designs in the fourth aspect, and details are not repeated herein.
In one possible design, the stator includes a stator core including a yoke portion.
In this design, the number of stator cores is set to at least two, and at least two yoke portion enclose and form the stator hole, and the stator hole is used for holding the rotor subassembly. The stator generates a magnetic field in a power-on state, and a rotor assembly of the motor can rotate under the action of the magnetic field.
According to a sixth aspect of the present invention, there is provided an electric machine comprising: a stator as in any one of the possible designs of the fifth aspect above, the stator comprising a stator bore; and the rotor assembly is arranged in the stator hole and is coaxial with the stator core.
The motor provided by the invention comprises a stator and a rotor assembly, wherein the stator is provided with a stator hole, the rotor assembly is assembled in the stator hole, and the rotor assembly and a stator iron core are coaxially arranged. The stator is any one of the stators possibly designed in the first aspect, so that the stator has all the beneficial technical effects of the stator in any one of the possible designs, and redundant description is not repeated herein.
In one possible design, the motor further comprises an output shaft, the output shaft is connected with the rotor assembly, and the output shaft and the stator core are arranged coaxially.
According to a seventh aspect of the present invention, there is provided a household appliance comprising: the motor as set forth in the above sixth aspect.
The present invention provides a household appliance comprising the motor as in the sixth aspect described above. Therefore, the motor has all the beneficial technical effects of the motor in any possible design, and redundant description is not repeated herein.
In one possible design, the motor includes an output shaft that is coupled to the rotor assembly. The household appliance further comprises a driven member connected with the output shaft.
In some embodiments, the household appliance is selected as a fan, the fan comprises fan blades and a motor in any one of the possible designs described above, the motor further comprising an output shaft. The fan blades are connected with the output shaft.
It should be noted that the motor can also be installed in household appliances such as a dust collector, a range hood, an air conditioner, and a washing machine.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 shows one of the structural schematics of a stator in one embodiment of the invention;
FIG. 2 illustrates a second schematic structural view of a stator in one embodiment of the invention;
FIG. 3 illustrates a third exemplary stator structure in accordance with an embodiment of the present invention;
FIG. 4 shows one of the schematic structural diagrams of the choke ring in one embodiment of the present invention;
FIG. 5 is a second schematic view of a choke ring according to an embodiment of the present invention;
FIG. 6 is a third schematic view of a choke ring according to an embodiment of the present invention;
FIG. 7 shows a fourth schematic view of a choke ring in an embodiment of the invention;
FIG. 8 shows a schematic view of the structure of the insulator in one embodiment of the invention;
FIG. 9 shows a schematic structural diagram of an electric machine in one embodiment of the invention;
fig. 10 shows a schematic configuration of a home appliance in an embodiment of the present invention;
FIG. 11 shows one of the schematic flow diagrams of a method of manufacturing a stator in one embodiment of the invention;
figure 12 shows a second schematic flow diagram of a method of manufacturing a stator in an embodiment of the invention;
fig. 13 shows a third schematic flow chart of a method of manufacturing a stator in an embodiment of the invention;
FIG. 14 shows a schematic view of the construction of a mandrel in an embodiment of the invention;
fig. 15 shows a schematic structural view of a stator in another embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 15 is:
100 stators, 120 stator cores, 140 insulators, 142 insulators, 144 connecting pieces, 160 choking rings, 162 bodies, 164 shielding parts, 166 convex ribs, 200 motors, 220 rotor assemblies, 240 output shafts, 300 household appliances and 320 fan blades.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
A stator, a motor, a home appliance, and a method of manufacturing the stator according to some embodiments of the present invention will be described below with reference to fig. 1 to 15.
The first embodiment is as follows:
as shown in fig. 1, 2 and 3, another embodiment of the present invention provides a stator core 120 including: stator core 120 core, insulator 140, and choke ring 160. The stator core 120 includes a tooth portion and a yoke portion; the tooth part is arranged in the insulating part 140 in a penetrating way, and a first gap is arranged between the insulating part 140 and the yoke part; the choke ring 160 is disposed between the yoke portion and the insulating member 140, and the choke ring 160 is used to close the first gap.
In this embodiment, the stator core 120 includes a stator core 120 core, an insulator 140, and a choke ring 160. The stator core 120 includes a yoke portion and a tooth portion. Insulating part 140 encloses to close and is formed with the cavity, and the tooth wears to establish with insulating part 140's cavity, insulating part 140 cover establish with stator core 120 iron core's tooth, insulating part 140 will be used for the tooth package of establishing the winding and carry out the cladding to improve the insulating properties between stator core 120 iron core's tooth and the winding. The teeth and the yoke of the core of the stator core 120 are connected, the insulator 140 is sleeved on the teeth, and a first gap is left between the insulator 140 and the yoke. The choke ring 160 is disposed between the yoke and the insulator 140, and may be disposed in the first gap, so as to close the gap between the yoke and the insulator 140. In the process of injection molding of the stator core 120, the first gap is formed between the yoke portion of the core of the stator core 120 and the insulating member 140, so that the injection molding material does not flow to the yoke portion of the core of the stator core 120, and the injection molding material does not remain in the stator core 120 when the injection molding process is completed.
It is understood that the choking ring 160 may alternatively be a resilient structure. Will have elastic choked flow ring 160 and set up between yoke portion and insulating part 140 of stator core 120 iron core, choked flow ring 160 can receive yoke portion and insulating part 140's extrusion and produce elastic deformation, choked flow ring 160 and insulating part 140 and the laminating degree between the stator core 120 iron core, make choked flow ring 160 and insulating part 140 and stator core 120 iron core between can not leave the gap, avoid the material of moulding plastics to enter into stator core 120 iron core's yoke portion through the gap and enclose and close the stator core 120 that forms downthehole.
Example two:
as shown in fig. 1, 2 and 3, one embodiment of the present invention provides a stator core 120 including: stator core 120 core, insulator 140, and choke ring 160. The stator core 120 includes a tooth portion and a yoke portion; the tooth part is arranged in the insulating part 140 in a penetrating way, and a first gap is arranged between the insulating part 140 and the yoke part; the choke ring 160 is disposed between the yoke portion and the insulating member 140, and the choke ring 160 is used to close the first gap.
As shown in fig. 4 and 5, in a cross section perpendicular to the axis of the choke ring 160, the contour line of the outer circumference of the choke ring 160 is a regular polygon, and the contour line of the inner circumference of the choke ring 160 is a circle.
In this embodiment, a stator core 120 includes a stator core 120 core, an insulator 140, and a choke ring 160. The stator core 120 includes a yoke portion and a tooth portion. Insulating part 140 encloses to close and is formed with the cavity, and the tooth wears to establish with insulating part 140's cavity, insulating part 140 cover establish with stator core 120 iron core's tooth, insulating part 140 will be used for the tooth package of establishing the winding and carry out the cladding to improve the insulating properties between stator core 120 iron core's tooth and the winding. The teeth and the yoke of the core of the stator core 120 are connected, the insulator 140 is sleeved on the teeth, and a first gap is left between the insulator 140 and the yoke. The choke ring 160 is disposed between the yoke and the insulator 140, and may be disposed in the first gap, so as to close the gap between the yoke and the insulator 140. In the process of injection molding of the stator core 120, the first gap is formed between the yoke portion of the core of the stator core 120 and the insulating member 140, so that the injection molding material does not flow to the yoke portion of the core of the stator core 120, and the injection molding material does not remain in the stator core 120 when the injection molding process is completed.
It is understood that the choking ring 160 may alternatively be a resilient structure. Will have elastic choked flow ring 160 and set up between yoke portion and insulating part 140 of stator core 120 iron core, choked flow ring 160 can receive yoke portion and insulating part 140's extrusion and produce elastic deformation, choked flow ring 160 and insulating part 140 and the laminating degree between the stator core 120 iron core, make choked flow ring 160 and insulating part 140 and stator core 120 iron core between can not leave the gap, avoid the material of moulding plastics to enter into stator core 120 iron core's yoke portion through the gap and enclose and close the stator core 120 that forms downthehole.
The choke ring 160 is shaped as a ring, and the ring-shaped choke ring 160 can be disposed at a position between the circumferentially distributed yoke and the insulator 140. The cross section perpendicular to the axis of the choke ring 160 is taken, and the choke ring 160 on the cross section is in a ring structure with an outer contour line of a regular polygon and an inner contour line of a circle. The outer edge of the hole of the stator core 120, which is formed by enclosing the yoke part of the core of the stator core 120, is circular, so that the inner contour line of the choke ring 160 is set to be circular, and the choke ring 160 is more attached to the yoke part of the core of the stator core 120. Insulating part 140 selects as insulating frame, and the inside outline that insulating part 140 encloses to close and forms is regular polygon, sets up the outline through the periphery with choking ring 160 into regular polygon to the laminating degree of choking ring 160 and insulating part 140 has been improved. Through rationally setting up the shape of choking ring 160, can improve the laminating degree of choking ring 160 and insulator 140 and the yoke portion of stator core 120 iron core to choking ring 160 is to the shutoff effect of the material of moulding plastics.
In the above embodiment, the number of the cores of the stator core 120 is at least three, and the number of the cores of the stator core 120 is the same as the number of sides of the regular polygon.
In this embodiment, the number of the cores of the stator core 120 is provided in plurality and is at least three. In the present invention, a single stator core 120 includes a yoke portion and a tooth portion, and after the stator core 120 is assembled with the insulator 140, the insulator 140 is configured to be detachable. A plurality of stator cores 120 are assembled together through an insulator 140 to form an integrated stator core 120 structure. The choke ring 160 is sleeved at the tooth portion of the core of the stator core 120, the yoke portion of the core of the stator core 120 is enclosed to form a hole of the stator core 120, and the hole of the stator core 120 is used for setting the rotor structure of the motor 200.
It is understood that the specific shape of the choke ring 160 can be appropriately set according to the shape of the insulating member 140, so as to improve the fit between the choke ring 160 and the insulating member 140.
In some embodiments, the number of the cores of the stator core 120 is eight, and after the insulator 140 is sleeved on the teeth of the core of the stator core 120, the winding is wound on the insulator 140. The contour line of the inner circumference of the choke ring 160 is set to be a circle shape fitting the yoke portion, and the contour line of the outer circumference of the insulator 140 is set to be an octagon shape fitting the insulator 140. The choke ring 160 is disposed at a position between the insulator 140 and a yoke portion of the core of the stator core 120, so as to seal the injection molding material, and prevent the injection molding material from entering a hole of the stator core 120 formed by surrounding the yoke portion of the core of the stator core 120 in the process of mold closing and injection molding of the stator core 120.
As shown in fig. 6 and 7, in any of the above embodiments, the number of the cores of the stator core 120 is at least three, the stator core slots are defined between two adjacent yoke portions, and the choke ring 160 includes: a body 162 located between the yoke and the insulator 140; and a shielding portion 164 provided to the body 162 and extending in the axial direction of the body 162, the shielding portion 164 being provided to correspond to the stator core slot.
In this embodiment, the yoke portions of at least three stator cores 120 surround to form the stator core 120 hole, any two adjacent yoke portions are arranged at intervals, and a stator core slot is defined between the two adjacent yoke portions. In the injection molding process, the injection molding material is required to cover the outside of the winding of the stator core 120 with an injection molding layer, and the injection molding material is filled between the cores of each wound stator core 120.
The choke ring 160 includes a body 162 and a blocking portion 164, the body 162 is annular, the body 162 is disposed between the insulator 140 and the yoke, the blocking portion 164 is connected to the body 162, and the blocking portion 164 extends along an axial direction of the body 162. The shielding portion 164 is within a projection range in the axial direction of the body 162. The shielding part 164 corresponds the setting with the stator core slot, and shielding part 164 can carry out the shutoff to the stator core slot, avoids the material of moulding plastics to enter into the stator core 120 iron core yoke portion of stator core 120 iron core through the stator core slot in the axial and encloses the stator core 120 downthehole that closes the formation. According to the invention, the stator core slots are blocked by the blocking part 164 of the stator core 120, so that the choke ring 160 can seal the stator core slots, and the sealing effect of the choke ring 160 on injection molding materials is further improved.
In some embodiments, the blocking portion 164 and the body 162 are integrally formed, that is, the choke ring 160 is integrally formed, so that the choke ring 160 has better integrity.
As shown in fig. 7, in any of the above embodiments, the choke ring 160 further includes: and the convex rib 166 is arranged on the shielding part 164, and the convex rib 166 extends into the stator core slot and is used for sealing the stator core slot.
In this embodiment, the choke ring 160 further includes a rib 166 disposed on the shielding portion 164, the rib 166 is disposed on the shielding portion 164, and the rib 166 extends into the stator core slot to block the stator core slot, so as to block the flow channel of the injection molding material formed by the stator core slot. In the injection molding process, the injection molding material is prevented from flowing into the stator core 120 hole formed by the yoke part of the stator core 120 in a surrounding manner through the stator core slot along the axial direction of the choke ring 160, and the sealing performance in the injection molding process is further improved.
In some embodiments, the rib 166, the curtain portion 164, and the body 162 are all integrally formed structures.
In any of the above embodiments, the choking rings 160 are two, and the two choking rings 160 are respectively located at two ends of the yoke portion along the axial direction of the choking rings 160.
In this embodiment, the number of choke rings 160 is set to two. The plurality of stator cores 120 are assembled together by the insulator 140, and yoke portions of the plurality of stator cores 120 are wound to form the stator core 120 hole. The stator core 120 has holes coaxially arranged with the choke ring 160, and in the axial direction of the choke ring 160, one choke ring 160 is arranged at each end of the yoke portion of the stator core 120.
In-process moulding plastics stator core 120, the yoke portion that is located stator core 120 hole both ends all contacts with the material of moulding plastics, both ends through the yoke portion at stator core 120 core all set up choking ring 160, then can avoid the material of moulding plastics to get into stator core 120 core's yoke portion through the both ends of yoke portion and enclose the stator core 120 that closes formation downthehole, all block up the first clearance that is located yoke portion both ends promptly, make the inside of iron core form airtight space, guarantee that the material of moulding plastics that is located yoke portion both ends at the in-process of moulding plastics flows outside, it enters into inside the iron core to have avoided the material of moulding plastics to enter into inside the iron core, the step of carrying out secondary treatment to stator core 120 core inside after the completion of moulding plastics has been saved.
As shown in fig. 1 and 8, in any of the above embodiments, the stator core 120 further includes a winding, and the insulating member 140 includes: at least two sub-insulators 142, the windings are wound on the sub-insulators 142, and the number of the sub-insulators 142 is the same as that of the cores of the stator core 120; and a connecting member 144 disposed on the sub-insulators 142, wherein at least two of the sub-insulators 142 are connected by the connecting member 144.
In this embodiment, the insulating member 140 includes a plurality of sub-insulating members 142, the number of the cores of the stator core 120 is also set to be plural, the number of the cores of the stator core 120 is the same as that of the sub-insulating members 142, and one sub-insulating member 142 is sleeved on each tooth of one single core of the stator core 120. The winding is wound on the sub-insulator 142, the winding is wound at a position corresponding to the tooth portion of the core of the stator core 120, and the sub-insulator 142 is disposed at a position between the winding and the tooth portion of the core of the stator core 120, so that the insulating property between the tooth portion of the core of the stator core 120 and the winding can be improved.
The insulating members 140 further include connecting members 144 disposed between the sub-insulators 142, and the sub-insulators 142 can be connected together by the connecting members 144. In the process of assembling the stator core 120, the individual sub-insulators 142 and the individual stator core 120 are assembled together, the windings are wound on the sub-insulators 142, and then the plurality of sub-insulators 142 are connected together through the connecting pieces 144 arranged on the sub-insulators 142, and at this time, the yoke portion of the stator core 120 is surrounded to form the stator core 120 hole. The assembled stator core 120 is subjected to mold clamping and injection molding, and the stator core 120 is manufactured.
The insulator 140 includes a plurality of detachably coupled sub-insulators 142 to facilitate assembly of the stator core 120.
In any of the above embodiments, the sub-insulator 142 includes: a first isolation section; the winding part is wound on the winding part, and two adjacent winding parts surround to form a winding groove; and a second isolation part connected to the other end of the winding part, wherein one side of the second isolation part, which is far away from the winding part, is attached to the insulating member 140.
In this embodiment, the sub-insulator 142 includes a first isolation portion, a second isolation portion, and a winding portion. The first isolation part, the second isolation part and the winding part are connected, and the winding part is located between the first isolation part and the second isolation part. The middle of the winding part is also provided with a cavity matched with the tooth part of the iron core of the stator core 120, and the sub-insulator 142 can be sleeved on the iron core of the stator core 120 through the cavity. Before the sub-insulator 142 and the stator core 120 are assembled, the winding can be wound on the winding of the sub-insulator 142, and then the sub-insulator 142 with the winding is sleeved on the stator core 120, so that the effect of simplifying the assembly steps is achieved.
First isolation portion and second isolation portion are located the both sides of winding respectively, and first isolation portion and second isolation portion can insulate the both sides of winding, improve the insulating properties of winding. The two sides of the second partition are respectively attached to the winding and the insulating member 140. Insulating part 140 and the one side laminating that the winding was kept away from to the second isolation part are in the same place, can carry out the shutoff to the first clearance between the yoke portion of second isolation part and stator core 120 iron core, avoid in the process of moulding plastics, and the material of moulding plastics enters into inside stator core 120 through first clearance.
Example three:
as shown in fig. 9, in still another embodiment of the present invention, there is provided a motor 200 including: as with the stator core 120 and the rotor assembly 220 of the first or second embodiment, the stator core 120 includes a stator core 120 bore; the rotor assembly 220 is disposed in the stator core 120 hole and is coaxial with the stator core 120 core.
The motor 200 provided by the invention comprises a stator core 120 and a rotor assembly 220, wherein the stator core 120 is provided with a stator core 120 hole, the rotor assembly 220 is assembled in the stator core 120 hole, and the rotor assembly 220 and the stator core 120 core are coaxially arranged.
The stator core 120 is the stator core 120 in any of the above embodiments, and the stator core 120 includes the stator core 120, an insulator 140, and a choke ring 160. The stator core 120 includes a yoke portion and a tooth portion. Insulating part 140 encloses to close and is formed with the cavity, and the tooth wears to establish with insulating part 140's cavity, insulating part 140 cover establish with stator core 120 iron core's tooth, insulating part 140 will be used for the tooth package of establishing the winding and carry out the cladding to improve the insulating properties between stator core 120 iron core's tooth and the winding. The teeth and the yoke of the core of the stator core 120 are connected, the insulator 140 is sleeved on the teeth, and a first gap is left between the insulator 140 and the yoke. The choke ring 160 is disposed between the yoke and the insulator 140, and may be disposed in the first gap, so as to close the gap between the yoke and the insulator 140. In the process of injection molding of the stator core 120, the first gap is formed between the yoke portion of the core of the stator core 120 and the insulating member 140, so that the injection molding material does not flow to the yoke portion of the core of the stator core 120, and the injection molding material does not remain in the stator core 120 when the injection molding process is completed.
In the above embodiment, the motor 200 further includes the output shaft 240, the output shaft 240 is connected to the rotor assembly 220, and the output shaft 240 is coaxially disposed with the core of the stator core 120.
In this embodiment, the stator core 120 is connected to a power supply, the stator core 120 generates a magnetic field after being powered on, the rotor assembly 220 drives the output shaft 240 to rotate under the action of the magnetic field generated by the stator core 120, and the output shaft 240, the rotor assembly 220 and the stator core 120 are coaxially arranged, so that the operation stability of the motor 200 is improved.
Example four:
as shown in fig. 10, in still another embodiment of the present invention, there is provided a home appliance 300 including the motor 200 as in the third embodiment.
The electronics also include an output shaft 240, the output shaft 240 being coupled to the rotor assembly. The household appliance 300 further includes a driven member connected with the output shaft 240.
In some embodiments, the household appliance 300 is selected as a fan, the fan comprises the fan blades 320 and the motor 200 in any of the possible designs described above, and the motor 200 further comprises the output shaft 240. Fan blades 320 are coupled to output shaft 240.
It should be noted that the motor 200 may also be disposed in a household appliance 300 such as a vacuum cleaner, a range hood, an air conditioner, a washing machine, etc.
Example five:
as shown in fig. 11, a manufacturing method of a stator is provided in another embodiment of the present invention, and the manufacturing method is used to manufacture the stator in the first embodiment or the second embodiment.
The preparation method comprises the following steps:
and 406, carrying out die assembly and injection molding on the stator core assembled with the choke ring.
The manufacturing method of the stator in this embodiment specifically includes: the stator core is arranged on the insulating part in a penetrating mode, the winding is wound on the insulating part, a first gap is reserved between the insulating part and a yoke part of the stator core in the process of sleeving the insulating part, and therefore the stator body is manufactured. The choke ring is arranged at a position between the yoke part of the insulating part and the yoke part of the stator core, the first gap is blocked by the choke ring, and injection molding materials are prevented from entering the inside of the stator through the first gap in the injection molding process. And (3) putting the stator main body provided with the choking ring into a mould for injection molding to obtain the injection molded stator.
The stator manufactured by the method comprises a stator core, an insulating piece and a choke ring. Wherein, stator core includes yoke portion and tooth portion. The insulating part encloses to close and is formed with the cavity, and tooth portion wears to establish with the cavity of insulating part, and the insulating part cover establish with stator core's tooth portion, the insulating part will be used for wrapping around the tooth portion of establishing the winding and carry out the cladding to improve stator core's tooth portion and the insulating properties between the winding. The tooth part and the yoke part of the stator core are connected, the insulator is sleeved on the tooth part, and a first gap is reserved between the insulator and the yoke part. The choke ring is arranged between the yoke part and the insulating part and can be arranged in the first gap, so that the gap between the yoke part and the insulating part is blocked. In the process of injection molding of the stator, the first gap between the yoke part of the stator core and the insulating part is arranged, so that the injection molding material cannot flow to the yoke part of the stator core, and the injection molding material cannot be remained in the stator when the injection molding process is completed.
Including a plurality of yokes and a plurality of tooth portion in the motor, a plurality of yokes can enclose and close and form the stator hole, in the assembling process of electron, need set up the rotor in the stator hole. According to the invention, the choke ring for plugging the first gap is arranged between the yoke part of the stator core and the insulating part, so that injection molding materials are prevented from directly entering the stator hole in the injection molding process. Therefore, the step of manually cleaning the stator hole is not required to be added, the additional processes are reduced, the labor cost is reduced, and the production efficiency of the motor is improved.
It will be appreciated that the choking ring may alternatively be of a resilient construction. Will have elastic choked flow ring setting between stator core's yoke portion and insulating part, choked flow ring can receive the extrusion production elastic deformation of yoke portion and insulating part, choked flow ring and the laminating degree between insulating part and the stator core, make and not leave the gap between choked flow ring and insulating part and the stator core, avoid the material of moulding plastics to enter into stator core's yoke portion through the gap and enclose the stator that closes the formation downthehole.
As shown in fig. 12, in the above embodiment, the step of assembling the winding and the insulating member to the stator core specifically includes:
and step 504, winding the winding on the insulating part.
In this design, the insulating part includes a plurality of sub-insulating parts, and stator core's quantity also sets up to a plurality ofly, and stator core's quantity is the same with sub-insulating part's quantity, all overlaps on an individual stator core's the tooth and establishes a sub-insulating part. The winding is wound on the sub-insulator, the winding is wound at a position corresponding to the tooth part of the stator core, and the sub-insulator is arranged at a position between the winding and the tooth part of the stator core, so that the insulating property between the tooth part of the stator core and the winding can be improved.
The insulating members further include connecting members provided between the sub-insulating members, by which the sub-insulating members can be connected together. In the process of assembling the stator, firstly, the independent sub-insulators and the independent stator core are assembled together, the windings are wound on the sub-insulators, then the plurality of sub-insulators are connected together through the connecting pieces arranged on the sub-insulators, and the yoke part of the stator core is surrounded to form a stator hole. And carrying out die assembly and injection molding on the assembled stator to complete the manufacture of the stator.
In the process of assembling the insulating part, the windings and the stator iron cores, the windings are wound in the sub-insulating parts of the insulating part, and then the sub-insulating parts wound with the windings and the stator iron cores are assembled in a one-to-one correspondence mode. The sub-insulators which are assembled by the stator iron core are connected together through the connecting piece, so that a stator main body is formed, and the effect of facilitating assembly of the stator main body is achieved.
It is worth mentioning that the sub-insulator includes a first isolation portion, a second isolation portion and a winding portion. The first isolation part, the second isolation part and the winding part are connected, and the winding part is located between the first isolation part and the second isolation part. The middle part of the winding part is also provided with a cavity matched with the tooth part of the stator core, and the sub-insulator can be sleeved on the stator core through the cavity. Before the sub-insulator and the stator core are assembled, the winding can be wound on the winding of the sub-insulator, and then the sub-insulator with the winding is sleeved on the stator core, so that the effect of simplifying the assembly steps is realized.
First isolation portion and second isolation portion are located the both sides of winding respectively, and first isolation portion and second isolation portion can insulate the both sides of winding, improve the insulating properties of winding. The two sides of the second isolation part are respectively attached to the winding and the insulating part. One side laminating that winding was kept away from to insulating part and second isolation part is in the same place, can carry out the shutoff to the first clearance between second isolation part and stator core's yoke portion, avoids at the in-process of moulding plastics, and the material of moulding plastics enters into inside the stator through first clearance.
As shown in fig. 13, in any of the above embodiments, the step of performing mold clamping and injection molding on the stator core equipped with the choke ring specifically includes:
and step 604, arranging the core sleeved with the stator core in an outer mold, and performing injection molding in the outer mold to form an injection molding layer for coating the stator core and the winding.
In this design, will establish on the core with the stator core cover that insulating part and winding assembly were accomplished, set up the core that is equipped with stator core in outer mould with the cover, to moulding plastics in the outer mould, pour into the material of moulding plastics in the outer mould to carry out the layer of moulding plastics of cladding at the surface of stator main part.
As shown in fig. 14, the choke ring is disposed in cooperation with the core, so that the injection molding material can be prevented from entering the stator through the gap between the core and the choke ring during the injection molding process.
Example six:
as shown in fig. 15, a stator 100 is provided in another embodiment of the present invention, and is manufactured by the method of manufacturing the stator in the fifth embodiment.
The stator 100 provided by the present invention is manufactured by the manufacturing method of the stator in the fifth embodiment, so that all the beneficial technical effects of the manufacturing method of the stator in the fifth embodiment are achieved, and no further description is provided herein.
In one possible design, the stator 100 includes a stator core 120, and the stator core 120 includes a yoke portion.
In this design, the number of stator cores 120 is set to be at least two, and at least two yoke portions surround to form a stator 100 hole, and the stator 100 hole is used for accommodating the rotor assembly 220. The stator 100 generates a magnetic field when being energized, and the rotor assembly 220 of the motor 200 can rotate under the action of the magnetic field
Example seven:
as shown in fig. 9, in another embodiment of the present invention, there is provided a motor 200 including: as in the stator 100, the stator 100 and the rotor assembly 220 of the sixth embodiment, the stator 100 includes a stator 100 hole; the rotor assembly 220 is disposed in the bore of the stator 100, and the rotor assembly 220 is disposed coaxially with the stator core 120.
The motor 200 includes a stator 100 and a rotor assembly 220, the stator 100 is provided with a stator 100 hole, the rotor assembly 220 is assembled in the stator 100 hole, and the rotor assembly 220 is coaxially provided with a stator core 120.
The stator 100 is the stator 100 in the sixth embodiment, so that the stator 100 has all the beneficial technical effects of the stator 100 in the sixth embodiment, and redundant description is not repeated here.
In one possible design, the motor 200 further includes an output shaft 240, the output shaft 240 is connected to the rotor assembly 220, and the output shaft 240 is coaxially disposed with the stator core 120.
Example eight:
as shown in fig. 10, in another embodiment of the present invention, there is provided a home appliance 300 including the motor 200 as in the seventh embodiment.
The electronics also include an output shaft 240, the output shaft 240 being coupled to the rotor assembly 220. The household appliance 300 further includes a driven member connected with the output shaft 240.
In some embodiments, the household appliance 300 is selected as a fan, the fan comprises the fan blades 320 and the motor 200 in any of the possible designs described above, and the motor 200 further comprises the output shaft 240. Fan blades 320 are coupled to output shaft 240.
It should be noted that the motor 200 may also be disposed in a household appliance 300 such as a vacuum cleaner, a range hood, an air conditioner, a washing machine, etc.
It is to be understood that, in the claims, the specification and the drawings of the specification of the present invention, the term "plurality" means two or more, unless explicitly defined otherwise, the terms "upper", "lower", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for the purpose of more conveniently describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element so referred to must have the particular orientation described, be constructed in a particular orientation, and be operated, and thus the description should not be construed as limiting the present invention; the terms "connect," "mount," "secure," and the like are to be construed broadly, and for example, "connect" may refer to a fixed connection between multiple objects, a removable connection between multiple objects, or an integral connection; the multiple objects may be directly connected to each other or indirectly connected to each other through an intermediate. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art from the above data specifically.
In the claims, specification and drawings of the specification, the description of the term "one embodiment," "some embodiments," "specific embodiments," and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In the claims, specification and drawings of the present application, schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (16)
1. A stator, comprising:
a stator core including a tooth portion and a yoke portion;
the tooth part penetrates through the insulating part, and a first gap is formed between the insulating part and the yoke part;
and the choke ring is arranged between the yoke part and the insulating part and used for plugging the first gap.
2. The stator according to claim 1,
on the cross section perpendicular to the axis of the choking ring, the contour line of the outer periphery of the choking ring is a regular polygon, and the contour line of the inner periphery of the choking ring is a circle.
3. The stator according to claim 2,
the number of the stator cores is at least three, and the number of the stator cores is the same as that of the sides of the regular polygon.
4. The stator of claim 1, wherein the number of the stator cores is at least three, adjacent two of the yoke portions define a stator slot therebetween, and the choke ring comprises:
a body located between the yoke and the insulator;
and the shielding part is arranged on the body and extends along the axial direction of the body, and the shielding part and the stator slot are correspondingly arranged.
5. The stator of claim 4, wherein the choke ring further comprises:
and the convex rib is arranged on the shielding part, extends into the stator groove and is used for plugging the stator groove.
6. The stator according to any one of claims 1 to 4,
the choke ring is two, follows the axial of choke ring, two the choke ring is located respectively the both ends of yoke portion.
7. A stator according to any one of claims 1 to 4, further comprising a winding, the insulation comprising:
the winding is wound on the sub-insulators, and the number of the sub-insulators is the same as that of the stator cores;
and the connecting pieces are arranged on the sub-insulating pieces, and at least two sub-insulating pieces are connected through the connecting pieces.
8. The stator of claim 7, wherein the sub-insulator comprises:
a first isolation section;
the winding is wound on the winding parts, and the adjacent two winding parts surround to form the winding groove;
and the second isolating part is connected with the other end of the winding part, and one side of the second isolating part, which is far away from the winding part, is attached to the insulating part.
9. An electric machine, comprising:
the stator of any one of claims 1 to 8, comprising a stator bore;
and the rotor assembly is arranged in the stator hole and is coaxial with the stator core.
10. A household appliance, characterized in that it comprises:
an electrical machine as claimed in claim 9.
11. A method of manufacturing a stator for use in manufacturing a stator according to any one of claims 1 to 8, comprising:
assembling a winding and the insulator to the stator core with the first gap provided between the insulator and the yoke portion of the stator core;
fitting the choke ring to the first gap;
and carrying out matched die injection molding on the stator core assembled with the choke ring to obtain the stator.
12. The method for manufacturing a stator according to claim 11, wherein the step of assembling the winding and the insulator to the stator core specifically comprises:
sleeving the insulator on the tooth part of the stator core, wherein the first gap is formed between the insulator and the yoke part;
and winding the winding on the insulating part.
13. The method according to claim 11, wherein the step of performing the injection molding of the stator core fitted with the choke ring specifically includes:
sleeving the stator core assembled with the choke ring on a core, and enabling the core to be attached to the inner side wall of the choke ring;
and arranging the core, which is sleeved with the stator core, in an outer mold, and performing injection molding in the outer mold so as to form an injection molding layer for coating the stator core and the winding.
14. A stator manufactured by the manufacturing method according to any one of claims 11 to 13.
15. An electric machine, comprising:
the stator of claim 14, comprising a stator bore;
and the rotor assembly is arranged in the stator hole and is coaxial with the stator core.
16. A household appliance, characterized in that it comprises:
the electric machine of claim 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110307008.2A CN113162283A (en) | 2021-03-23 | 2021-03-23 | Stator, motor, household appliance and manufacturing method of stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110307008.2A CN113162283A (en) | 2021-03-23 | 2021-03-23 | Stator, motor, household appliance and manufacturing method of stator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113162283A true CN113162283A (en) | 2021-07-23 |
Family
ID=76888026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110307008.2A Pending CN113162283A (en) | 2021-03-23 | 2021-03-23 | Stator, motor, household appliance and manufacturing method of stator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113162283A (en) |
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2021
- 2021-03-23 CN CN202110307008.2A patent/CN113162283A/en active Pending
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