CN115001186A - Winding structure, stator assembly, motor and winding structure production process - Google Patents
Winding structure, stator assembly, motor and winding structure production process Download PDFInfo
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- CN115001186A CN115001186A CN202210759918.9A CN202210759918A CN115001186A CN 115001186 A CN115001186 A CN 115001186A CN 202210759918 A CN202210759918 A CN 202210759918A CN 115001186 A CN115001186 A CN 115001186A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
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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
- H02K15/04—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings, prior to mounting into machines
- H02K15/0435—Wound windings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/16—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors
- H02K17/18—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors having double-cage or multiple-cage rotors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/24—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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Abstract
The utility model relates to the technical field of electric machine, especially, relate to a winding structure, stator module, motor and winding structure production technology, this winding structure is including enclosing a plurality of phase winding that synthesize a section of thick bamboo structure, every phase winding is including a plurality of winding coils that establish ties and set up, a plurality of winding coils of every phase winding and a plurality of winding coils of other phase winding overlap each other around setting, this winding structure can make winding coil evenly distributed, effectively solve behind the circular telegram electromagnetic torque crisscross, the problem that partial moment offsets each other, the work efficiency of motor is improved.
Description
Technical Field
The application relates to the technical field of motors, in particular to a winding structure, a stator assembly, a motor and a winding structure production process.
Background
The coreless motor is a high-efficiency energy conversion device, is currently applied to the fields of direct current, permanent magnet and servo micro special motors, and the existing coreless motor technology is not involved in the field of alternating current asynchronous motors for a while. Specifically, the coreless motor is structurally characterized by adopting a coreless design, namely, the coreless motor has no teeth and slots, compared with a tooth socket motor under the same condition, the coreless motor has the advantages of large output power density, small torque fluctuation, small volume, light weight, small rotational inertia and no tooth slot effect, so that the quick response performance of the motor is improved, the running characteristic of the motor is greatly improved, and the coreless motor has the control and dragging characteristics which cannot be achieved by the tooth socket motor, and therefore, the coreless motor is more and more widely applied.
In the prior art of the motor, a winding coil for manufacturing the coreless motor mostly adopts an oblique winding form, namely, when the winding is unfolded into a plane, the winding coil and the horizontal direction form an angle and are obliquely distributed in parallel, and the winding coil is a cup-shaped winding which is randomly arranged or woven. The winding coils of the structure are unevenly distributed, and have the defects of mutual dislocation, complicated and crossed magnetic circuits and larger winding thickness. After the winding is electrified, electromagnetic torque generated between winding coils cannot be uniformly distributed, and partial torque counteracts each other, so that the working efficiency of the motor is low.
Disclosure of Invention
An object of the application is to provide a winding structure, stator module, motor and winding structure production technology, and this winding structure can make winding coil evenly distributed, effectively solves the electromagnetic torque crisscross after the circular telegram, and the problem that partial moment offsets each other improves the work efficiency of motor.
To this end, in a first aspect, embodiments of the present application provide a winding structure, including a plurality of phase windings enclosed in a cylindrical structure, each of the phase windings includes a plurality of winding coils arranged in series, and the plurality of winding coils of each of the phase windings and the plurality of winding coils of the other phase windings are arranged to overlap each other.
In one possible implementation, the plurality of winding coils are of an elliptical structure with the same size.
In a possible implementation manner, each of the phase windings includes a plurality of winding coils including a first winding coil and a second winding coil arranged at intervals, the number of turns of the first winding coil is equal to that of the second winding coil, and the winding direction of the first winding coil is opposite to that of the second winding coil.
In one possible implementation, the winding coil is a self-adhesive enameled wire.
In one possible implementation, the winding coils of each of the phase windings are reserved with terminals.
In a second aspect, an embodiment of the present application provides a stator assembly, including: the stator comprises a stator base, wherein a wiring terminal is arranged on the stator base; and the winding structure is arranged on the stator base, and the winding structure is connected with the wiring terminal of the stator base.
In a possible implementation, the stator base is provided with a first ventilation hole corresponding to the inner side of the winding structure.
In a third aspect, an embodiment of the present application provides an electric machine, including: a stator assembly as previously described; the rotor assembly comprises a connecting plate, an outer rotor squirrel cage guide bar and an inner rotor squirrel cage guide bar, the outer rotor squirrel cage guide bar and the inner rotor squirrel cage guide bar are arranged on one side of the connecting plate, the inner rotor squirrel cage guide bar is positioned in the outer rotor squirrel cage guide bar, and a placing space is reserved between the inner rotor squirrel cage guide bar and the outer rotor squirrel cage guide bar; the winding structure of the stator component is positioned in a placing space between the inner rotor squirrel cage conducting bars and the outer rotor squirrel cage conducting bars.
In a possible implementation manner, the unfolded length of the winding structure is greater than the outer circumference of the inner rotor squirrel cage conducting bar and less than the inner circumference of the outer rotor squirrel cage conducting bar, and the thickness of the winding structure is less than or equal to the width of a gap between the inner rotor squirrel cage conducting bar and the outer rotor squirrel cage conducting bar.
In a possible implementation manner, the connecting plate is provided with a second vent hole.
In a possible implementation manner, the middle part of the connecting plate is provided with a connecting end; the stator base is provided with a bearing chamber and a shaft hole, and the bearing chamber is positioned in the winding structure; the motor further includes: a bearing rotatably disposed within the bearing chamber of the stator base; and the transmission shaft penetrates through the stator assembly and the bearing, and the end part of the transmission shaft is connected with the connecting end of the connecting plate.
In a possible implementation, the winding structure, the bearing chamber and the shaft bore are arranged coaxially.
In a fourth aspect, an embodiment of the present application further provides a production process of a winding structure, including the following steps: preparing a planar winding, winding a plurality of phase windings, wherein each phase winding comprises a plurality of winding coils which are arranged in series, the winding coils of the phase windings are uniformly distributed at intervals in a crossed manner, and then pre-curing and pre-flattening are carried out to process the planar winding; and preparing a cylindrical winding, curling the planar winding into the cylindrical winding, and curing by baking and heating to obtain the cylindrical winding.
In one possible implementation, the winding coils of the winding structure are elliptical structures with the same size; the preparing of the planar winding in the winding structure production process further comprises: the plurality of winding coils of each phase winding are wound in an oval-shaped configuration of equal size.
In a possible implementation manner, the plurality of winding coils of the winding structure include a first winding coil and a second winding coil which are arranged at intervals, the number of turns of the first winding coil is equal to that of the second winding coil, and the winding direction of the first winding coil is opposite to that of the second winding coil; the preparation plane winding in the winding structure production process further comprises the following steps: when the phase winding is wound, a plurality of first winding coils and a plurality of second winding coils with the same number of turns are sequentially wound, the first winding coils and the second winding coils are arranged at intervals, and the winding direction of the first winding coils is opposite to that of the second winding coils.
In one possible implementation manner, the winding coil of the winding structure is a self-adhesive enameled wire; the preparation tube-shape winding in the winding structure production technology still includes: through baking and heating, the adjacent winding coils adopting the self-adhesive enameled wire are bonded to generate chemical crosslinking, so that a solid whole is formed.
According to the winding structure, the stator assembly, the motor and the production process of the winding structure, the winding structure is formed by alternately winding a plurality of winding coils of different phase windings at intervals, so that the winding coils are uniformly distributed, the problems that electromagnetic torque is intricately crossed and partial torque is mutually offset after electrification are effectively solved, and the working efficiency of the motor is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following descriptions are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts. In addition, in the drawings, like parts are denoted by like reference numerals, and the drawings are not drawn to actual scale.
Fig. 1 is a schematic perspective view illustrating a winding structure provided in an embodiment of the present application;
fig. 2 is a schematic diagram illustrating a distribution of a winding structure according to an embodiment of the present application;
fig. 3 is a schematic perspective view illustrating a stator assembly provided in an embodiment of the present application;
fig. 4 is a schematic perspective view illustrating a motor according to an embodiment of the present disclosure;
fig. 5 is a schematic diagram illustrating an exploded structure of a motor according to an embodiment of the present disclosure;
fig. 6 illustrates a perspective view of a rotor assembly provided in an embodiment of the present application.
Description of reference numerals:
1. a stator assembly; 11. a winding structure; 111. a phase winding; 1111. a first winding coil; 1112. a second winding coil; 12. a stator base; 121. a wiring terminal; 122. a first vent hole; 123. a bearing chamber; 124. a shaft hole;
2. a rotor assembly; 21. a connecting plate; 211. a second vent hole; 212. a connecting end; 22. inner rotor squirrel cage conducting bars; 23. outer rotor squirrel cage conducting bars;
3. a bearing;
4. a drive shaft.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the related technology, most of the winding coils for manufacturing the coreless motor adopt an oblique winding form, namely when the windings are unfolded into a plane, the winding coils and the horizontal direction form an angle and are obliquely distributed in parallel, and the winding coils are cup-shaped windings which are randomly arranged or woven. The winding coils of the structure are unevenly distributed, and have the defects of mutual dislocation, complicated and crossed magnetic circuits and larger winding thickness. After the winding is electrified, electromagnetic torque generated between winding coils cannot be uniformly distributed, and partial torque counteracts each other.
Fig. 1 is a schematic perspective view illustrating a winding structure provided in an embodiment of the present application;
fig. 2 shows a distribution diagram of a winding structure provided in an embodiment of the present application.
As shown in fig. 1 to 2, an embodiment of the present application provides a winding structure 11, which includes a plurality of phase windings 111 enclosing a cylindrical structure, each phase winding 111 includes a plurality of winding coils arranged in series, and the plurality of winding coils of each phase winding 111 and the plurality of winding coils of the other phase windings 111 are arranged to overlap each other.
In this application, this winding structure 11 is through setting up a plurality of winding coils alternately lap winding of different phase winding 111 at intervals, can make winding coil evenly distributed, effectively solves the electromagnetic torque after the circular telegram and crisscross, and the problem that partial moment was offset each other improves the work efficiency of motor.
Specifically, the number of the phase windings 111 is equal to the number of phases of the motor, specifically, the two-phase motor includes two phase windings 111, and the three-phase motor includes three phase windings 111.
The number of winding coils of each phase winding 111 is equal to twice of the number of pole pairs of the motor, namely, the motor with one pole pair number; each phase winding 111 comprises two winding coils, two pole pair motors, each phase winding 111 comprises four winding coils, and so on.
In some embodiments, the plurality of winding coils are of an elliptical configuration of equal size.
In the related technology, the winding coil adopts a square or diamond structure, so that the fluctuation of the force arm is large in the winding process of the winding coil, the tension stress is uneven in the winding process, the winding speed of the winding coil is limited, and the production effect is influenced.
In this application, the winding coil is through adopting the oval structure that the size is the same, can effectively avoid the winding coil winding in-process arm of force undulant great, the uneven condition of tension atress, thereby ensure the winding speed of winding coil, improve production efficiency, the winding coil adopts the oval structure that the size is the same simultaneously, when carrying out alternately interval lap winding to the winding coil of different phase winding 111, can further improve the homogeneity of 11 spatial distribution of winding structure, make the thickness of winding structure 11 thinner relatively, further avoid the circumstances that circular telegram back electromagnetic torque offset each other simultaneously.
In some embodiments, the plurality of winding coils of each phase winding 111 includes a first winding coil 1111 and a second winding coil 1112 arranged at intervals, the first winding coil has the same number of turns as the second winding coil 1112, and the first winding coil 1111 is wound in a direction opposite to the winding direction of the second winding coil 1112.
As shown in fig. 2, specifically, when the number of pole pairs of the motor is 1 and the number of phases of the motor is 2, each phase winding 111 includes a first winding coil 1111 and a second winding coil 1112.
When the number of pole pairs of the motor is 2, each phase winding 111 includes two first winding coils 1111 and two second winding coils 1112, which are arranged in the manner of the first winding coils 1111, the second winding coils 1112, the first winding coils 1111, and the second winding coils 1112, and so on for the motors of other number of pole pairs.
In some embodiments, the winding coil is self-adhesive enameled wire.
In the application, the self-adhesive layer is an adhesive, flows under heating, and chemical crosslinking is generated after adjacent conductors are bonded to form a solid whole and an infusible adhesive film. The self-adhesive layer glue is a formula formed by adding a latent curing agent, a toughening agent and a curing accelerator into solid resin, and the self-adhesive layer has toughness, so that the self-adhesive layer does not fall off in the winding and curling processes, can be quickly cured under heating, and further ensures that the rolled cylindrical winding structure 11 does not deform.
In some embodiments, the winding coils of each phase winding 111 are reserved with terminals.
In this application, the wiring end that winding coil reserved is used for the outside binding post 121 of later stage connection stator base 12, makes things convenient for the later stage to assemble processing to stator module 1.
Fig. 3 illustrates a perspective view of a stator assembly according to an embodiment of the present disclosure.
As shown in fig. 3, the present application further provides a stator assembly 1, including: stator base 12 and winding structure 11 described above, wherein:
the stator base 12 is provided with a connection terminal 121.
The winding structure 11 is disposed on the stator base 12, and the winding structure 11 is connected to the connection terminal 121 of the stator base 12.
Specifically, the cylindrical winding structure 11 and the stator base 12 are integrally formed by injection molding, and a terminal of the cylindrical winding structure 11 is connected to the inside of a terminal 121 outside the winding of the stator base 12, so that a rotating magnetic field is generated after an external power supply is electrified through the external terminal 121 of the stator base 12.
In some embodiments, the stator base 12 is provided with a first ventilation hole 122 corresponding to the inner side of the winding structure 11.
In this application, the first ventilation hole 122 on the stator base 12 improves the heat dissipation effect of the motor during operation.
Fig. 4 is a schematic perspective view illustrating a motor according to an embodiment of the present disclosure; fig. 5 is a schematic diagram illustrating an exploded structure of a motor according to an embodiment of the present disclosure; fig. 6 is a schematic perspective view illustrating a rotor assembly according to an embodiment of the present disclosure;
as shown in fig. 4 to 6, embodiments of the present application provide an electric machine including: the stator assembly 1 and the rotor assembly 2 described above, wherein:
the rotor assembly 2 comprises a connecting plate 21, and an outer rotor squirrel cage guide bar 23 and an inner rotor squirrel cage guide bar 22 which are arranged on one side of the connecting plate 21, wherein the inner rotor squirrel cage guide bar 22 is positioned in the outer rotor squirrel cage guide bar 23, and a placement space is reserved between the inner rotor squirrel cage guide bar 22 and the outer rotor squirrel cage guide bar 23.
The winding structure 11 of the stator assembly 1 is located in the placement space between the inner rotor cage bars 22 and the outer rotor cage bars 23.
In this application, stator module 1 and rotor subassembly 2 cooperation, produce rotating magnetic field after stator module 1's winding coil circular telegram, drive rotor subassembly 2 and rotate.
Specifically, the connecting plate 21, the inner rotor squirrel cage guide bars 22 and the outer rotor squirrel cage guide bars 23 are integrally formed by cast aluminum or cast copper, and the central axes of the inner rotor squirrel cage guide bars 22 and the outer rotor squirrel cage guide bars need to be overlapped.
In some embodiments, the winding structure 11 has an expanded length greater than an outer circumference of the inner rotor cage bars 22 and less than an inner circumference of the outer rotor cage bars 23, and the thickness of the winding structure 11 is less than or equal to a gap width between the inner rotor cage bars 22 and the outer rotor cage bars 23.
In this application, ensure that the winding structure 11 of cylinder-shape after the solidification can set up between inner rotor squirrel cage conducting bar 22 and outer rotor squirrel cage conducting bar 23, and can guarantee that rotor subassembly 2 rotates around stator module 1.
The axial length of the inner rotor squirrel cage conducting bars and the axial length of the outer rotor squirrel cage conducting bars are matched with the axial length of the winding structure, so that the rotating magnetic field generated after the winding structure is electrified can effectively drive the rotor assembly to rotate.
In some embodiments, the connection plate 21 is provided with a second vent hole 211.
In this application, dispel the heat through second venthole 211 to the motor, further improve the radiating effect.
Specifically, the whole structure of the motor is designed to be a hollow structure, and the motor has a good heat dissipation system in the axial direction and the radial direction in the rotating process, so that the generated heat can be quickly and effectively dissipated.
In some embodiments, the middle of the connection plate 21 is provided with a connection end 212; the stator base 12 is provided with a bearing chamber 123 and a shaft hole 124, and the bearing chamber 123 is positioned in the winding structure 11; the motor further includes: a bearing 3 rotatably disposed in the bearing chamber 123 of the stator base 12; and a transmission shaft 4, wherein the transmission shaft 4 penetrates through the stator assembly 1 and the bearing 3, and the end of the transmission shaft 4 is connected with the connecting end 212 of the connecting plate 21.
In the application, one end of the transmission shaft 4 is connected with the connecting end 212 of the connecting plate 21, the other end of the transmission shaft is matched with the bearing chamber 123 of the stator base 12 through the bearing 3, and the two ends of the transmission shaft 4 are in interference fit, so that the transmission shaft can generate driving force to synchronously rotate with the inner rotor squirrel cage guide bar 22 and the outer rotor squirrel cage guide bar 23.
In some embodiments, the winding structure 11, the bearing chamber 123 and the shaft bore 124 are coaxially arranged.
In this application, the stability of the rotor assembly when rotating.
The embodiment of the application provides a winding structure production process, which comprises the following steps:
s1, preparing a planar winding, winding a plurality of phase windings, wherein each phase winding comprises a plurality of winding coils which are connected in series, the winding coils of the phase windings are uniformly distributed at intervals in a crossed mode, and then pre-curing and pre-flattening are carried out to process the planar winding.
And S2, preparing a cylindrical winding, curling the planar winding into the cylindrical winding, and curing by baking and heating to process the cylindrical winding.
In some embodiments, the winding coils of the winding structure are of the same size elliptical structure; the preparing of the planar winding in the winding structure production process further comprises: and S11, winding a plurality of winding coils of each phase winding into an oval structure with the same size.
In some embodiments, the plurality of winding coils of the winding structure include a first winding coil and a second winding coil which are arranged at intervals, the number of turns of the first winding coil is equal to that of the second winding coil, and the winding direction of the first winding coil is opposite to that of the second winding coil; the preparation plane winding in the winding structure production technology further comprises: and S12, when the phase winding is wound, sequentially winding a plurality of first winding coils and a plurality of second winding coils with the same number of turns, wherein the first winding coils and the second winding coils are arranged at intervals, and the winding direction of the first winding coils is opposite to that of the second winding coils.
In some embodiments, the winding coil of the winding structure is self-adhesive enameled wire; the preparation tube-shape winding in the winding structure production process also comprises the following steps: and S21, through baking and heating, the adjacent winding coils adopting the self-adhesive enameled wires are bonded to generate chemical crosslinking, so that a solid whole is formed.
The embodiment of the application provides a winding structure production process, which comprises the following steps:
s1, preparing a planar winding, winding a plurality of phase windings, wherein each phase winding comprises a plurality of winding coils which are arranged in series, the winding coils of the phase windings are uniformly distributed at intervals in a crossed manner, and then pre-curing and pre-flattening are carried out to process the planar winding;
s11, winding a plurality of winding coils of each phase winding into elliptical structures with the same size;
s12, when phase windings are wound, sequentially winding a plurality of first winding coils and a plurality of second winding coils with the same number of turns, wherein the first winding coils and the second winding coils are arranged at intervals, and the winding direction of the first winding coils is opposite to that of the second winding coils;
s2, preparing a cylindrical winding, curling the planar winding into the cylindrical winding, and curing the cylindrical winding by baking and heating to process the cylindrical winding;
and S21, ensuring that adjacent winding coils adopting the self-adhesive enameled wire are bonded to generate chemical crosslinking through baking and heating to form a solid whole.
The embodiment of the application also provides a production process of the motor, which comprises the following steps:
s1, preparing a planar winding, winding a plurality of phase windings, wherein each phase winding comprises a plurality of winding coils which are connected in series, the winding coils of the phase windings are uniformly distributed at intervals in a crossed manner, and then pre-curing and pre-flattening are carried out to process the planar winding;
s11, winding a plurality of winding coils of each phase winding into an oval structure with the same size;
s12, when phase windings are wound, sequentially winding a plurality of first winding coils and a plurality of second winding coils with the same number of turns, wherein the first winding coils and the second winding coils are arranged at intervals, and the winding direction of the first winding coils is opposite to that of the second winding coils;
s2, preparing a cylindrical winding, curling the planar winding into the cylindrical winding, and curing the cylindrical winding by baking and heating to process the cylindrical winding;
s21, ensuring that adjacent winding coils adopting the self-adhesive enameled wire are bonded to generate chemical crosslinking through baking and heating to form a solid whole;
s3, performing circle correction and shape finishing on the cylindrical winding, and strictly controlling the size, roundness and appearance requirements of the inner circle and the outer circle of the cylindrical winding;
s4, connecting the terminal of the cured cylindrical winding structure with an external connecting terminal, and performing injection molding on the cylindrical winding structure and the connecting terminal by using an injection mold to form a stator assembly;
s5, die-casting the inner rotor squirrel cage conducting bars, the outer rotor squirrel cage conducting bars and the end ring connecting plates into a whole by using a die-casting die;
s6, connecting one end of the transmission shaft with the shaft hole of the rotor assembly connecting plate, and matching the other end of the transmission shaft with the bearing chamber of the stator base through a bearing to obtain the motor in the application.
It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
It should be readily understood that "on … …", "above … …" and "above … …" in this disclosure should be interpreted in its broadest sense such that "on … …" means not only "directly on something", but also includes the meaning of "on something" with intervening features or layers therebetween, and "above … …" or "above … …" includes not only the meaning of "above something" or "above" but also includes the meaning of "above something" or "above" with no intervening features or layers therebetween (i.e., directly on something).
Furthermore, spatially relative terms, such as "below," "lower," "above," "upper," and the like, may be used herein for ease of description to describe one element or feature's illustrated relationship to another element or feature. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may have other orientations (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly as well.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (16)
1. A winding structure comprising a plurality of phase windings wound in a cylindrical configuration, each of said phase windings comprising a plurality of winding coils arranged in series, said plurality of winding coils of each of said phase windings being arranged in a lap-wound relationship with said plurality of winding coils of the remaining of said phase windings.
2. The winding structure according to claim 1, wherein a plurality of the winding coils are in an elliptical structure having the same size.
3. The winding structure according to claim 1, wherein the plurality of winding coils of each of the phase windings includes a first winding coil and a second winding coil that are arranged at an interval, the number of turns of the first winding coil is equal to that of the second winding coil, and a winding direction of the first winding coil is opposite to that of the second winding coil.
4. The winding structure according to claim 1, wherein the winding coil is a self-adhesive enameled wire.
5. The winding structure according to claim 1, wherein the winding coil of each of the phase windings is reserved with a terminal.
6. A stator assembly, comprising:
the stator comprises a stator base, wherein a wiring terminal is arranged on the stator base; and
the winding structure according to any one of claims 1 to 5, which is provided on the stator base, and which is connected to a terminal of the stator base.
7. The stator assembly of claim 6, wherein the stator base is provided with a first vent hole corresponding to an inner side of the winding structure.
8. An electric machine, comprising:
the stator assembly of any of claims 6 to 7; and
the rotor assembly comprises a connecting plate, an outer rotor squirrel cage guide bar and an inner rotor squirrel cage guide bar, wherein the outer rotor squirrel cage guide bar and the inner rotor squirrel cage guide bar are arranged on one side of the connecting plate;
the winding structure of the stator assembly is positioned in a placing space between the inner rotor squirrel-cage conducting bars and the outer rotor squirrel-cage conducting bars.
9. The electric machine of claim 8, wherein the winding structure deployment length is greater than an outer ring perimeter of the inner rotor squirrel cage bars and less than an inner ring perimeter of the outer rotor squirrel cage bars, and a thickness of the winding structure is less than or equal to a gap width between the inner rotor squirrel cage bars and the outer rotor squirrel cage bars.
10. The electric machine of claim 8, wherein the connection plate is provided with a second vent hole.
11. The electric machine according to claim 8, wherein a connection end is provided at a middle portion of the connection plate; the stator base is provided with a bearing chamber and a shaft hole, and the bearing chamber is positioned in the winding structure;
the motor further includes:
a bearing rotatably disposed within the bearing chamber of the stator base; and
and the transmission shaft penetrates through the stator assembly and the bearing, and the end part of the transmission shaft is connected with the connecting end of the connecting plate.
12. The electric machine of claim 11 wherein the winding structure, the bearing housing and the shaft bore are coaxially disposed.
13. A process for producing a winding structure according to any one of claims 1 to 5, comprising the steps of:
preparing a planar winding, winding a plurality of phase windings, wherein each phase winding comprises a plurality of winding coils which are arranged in series, the winding coils of the phase windings are uniformly distributed at intervals in a crossed manner, and then pre-curing and pre-flattening are carried out to process the planar winding;
and preparing a cylindrical winding, curling the planar winding into the cylindrical winding, and curing by baking and heating to process the cylindrical winding.
14. The winding structure production process according to claim 13, wherein the winding coils of the winding structure are in an elliptical structure of the same size; the preparing of the planar winding in the winding structure production process further comprises: the plurality of winding coils of each phase winding are wound in an oval configuration of equal size.
15. The winding structure production process according to claim 13, wherein the plurality of winding coils of the winding structure comprise a first winding coil and a second winding coil which are arranged at intervals, the number of turns of the first winding coil is equal to that of the second winding coil, and the winding direction of the first winding coil is opposite to that of the second winding coil; the preparation plane winding in the winding structure production technology further comprises: when the phase winding is wound, a plurality of first winding coils and a plurality of second winding coils with the same number of turns are sequentially wound, the first winding coils and the second winding coils are arranged at intervals, and the winding direction of the first winding coils is opposite to that of the second winding coils.
16. The winding structure production process according to claim 13, wherein a self-adhesive enameled wire is adopted as a winding coil of the winding structure; the preparation tube-shape winding in the winding structure production process also comprises the following steps: through baking and heating, the adjacent winding coils adopting the self-adhesive enameled wires are bonded to generate chemical crosslinking, so that a solid whole is formed.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115800569A (en) * | 2022-12-06 | 2023-03-14 | 天津大学 | Tooth-slot-free stator with buckle type winding and manufacturing mold thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115800569A (en) * | 2022-12-06 | 2023-03-14 | 天津大学 | Tooth-slot-free stator with buckle type winding and manufacturing mold thereof |
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