CN215990340U - Stator single tooth - Google Patents
Stator single tooth Download PDFInfo
- Publication number
- CN215990340U CN215990340U CN202122354436.9U CN202122354436U CN215990340U CN 215990340 U CN215990340 U CN 215990340U CN 202122354436 U CN202122354436 U CN 202122354436U CN 215990340 U CN215990340 U CN 215990340U
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- Prior art keywords
- stator
- winding
- monodentate
- connecting groove
- single tooth
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- 238000004804 winding Methods 0.000 claims abstract description 49
- 230000013011 mating Effects 0.000 claims description 12
- 230000001154 acute effect Effects 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 12
- 238000011900 installation process Methods 0.000 abstract description 4
- 238000001125 extrusion Methods 0.000 description 8
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 238000003825 pressing Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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Abstract
The utility model provides a stator single tooth, which comprises a stator single tooth fixing part and a winding part, wherein the fixing part is provided with a connecting groove with an outward opening, at least one side surface of the connecting groove is convexly provided with a convex part, and the convex part is used for limiting the position of the fixing part in the opening direction of the connecting groove; the winding part is arranged on the inner side of the fixing part and used for winding. According to the utility model, each single tooth of the stator is independently wound and installed, the winding sequence and the installation sequence are not limited, so that the die cost is reduced, the mutual interference is avoided during winding, the installation process is simplified, and the winding accuracy can be improved; each stator single tooth is installed independently through the connecting piece, and the position of the stator single tooth in the radial direction of the stator (namely the opening direction of the connecting groove) is limited through the convex part, so that the connection stability of the stator single tooth is guaranteed.
Description
Technical Field
The utility model belongs to the technical field of permanent magnet motors, and particularly relates to a stator single tooth.
Background
The motor is a device for realizing the conversion between electric energy and mechanical energy, the stator is a very important part in the motor, and the stator is stationary and mainly used for being cut by magnetic lines of force in a rotating magnetic field to generate current.
The stator of a large motor is usually made into a fan-shaped piece structure, each fan-shaped piece is provided with a plurality of grooves, and a stator core is formed by one-third overlapping or one-half overlapping of stator punching pieces in a laminated mode.
The wire winding on the stator has multiple forms such as levogyration and dextrorotation, and the wire winding form on every adjacent coil is different, under this condition, just need carry out the wire winding on stator core in proper order, and the wire winding process is complicated, and under the condition that preceding wire winding was accomplished, can produce the interference to the wire winding process of back one to it influences the use to wind the mistake easily.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a stator single tooth, aiming at simplifying the stator winding process, improving the winding efficiency and accuracy and reducing the manufacturing cost.
In order to achieve the purpose, the utility model adopts the technical scheme that: provided is a stator single tooth including:
the fixing part is provided with a connecting groove with an outward opening, at least one side surface of the connecting groove is convexly provided with a convex part, and the convex part is used for limiting the position of the fixing part in the opening direction of the connecting groove; and
and the winding part is arranged on the inner side of the fixing part and used for winding.
In a possible implementation manner, the connecting groove is a through groove penetrating through the fixing portion in a thickness direction of the fixing portion.
In a possible implementation manner, the protruding portion is disposed on one side of the connecting groove, and an avoiding space is formed in the connecting groove on the opposite side of the protruding portion.
In one possible implementation, the protrusions are respectively disposed at two opposite sides of the connection groove.
In one possible implementation, the protrusion is a triangular prism, a side face of the triangular prism is fixed to the connecting groove, a fitting surface is formed towards an inner side face of the triangular prism, and an acute angle space is formed between the fitting surface and the groove bottom face of the connecting groove.
In one possible implementation, the mating surface is a flat surface or a jagged curved surface.
In a possible implementation manner, a pole shoe is further arranged at one end of the winding part, which is far away from the fixing part, and an inner side surface of the pole shoe is an arc surface.
In one possible embodiment, the thickness of the pole shoe decreases in the direction of the fixed side toward the free side.
In a possible implementation, the fixed part with wire winding portion equally divide and do not include along its thickness direction fold a plurality of lamellar structures of establishing in proper order, both ends on the thickness direction of fixed part are equipped with the end plate respectively, two through running through a plurality of between the end plate the threaded connection spare of lamellar structure connects.
In the embodiment of the application, compared with the prior art, each single tooth of the stator is independently wound and installed, the winding sequence and the installation sequence are not limited, the cost of a die is reduced, the single teeth do not interfere with each other during winding, the installation process is simplified, and the winding accuracy can be improved; each stator single tooth is installed independently through the connecting piece, and the position of the stator single tooth in the radial direction of the stator (namely the opening direction of the connecting groove) is limited through the convex part, so that the connection stability of the stator single tooth is guaranteed.
Drawings
FIG. 1 is a schematic view of a stator with a single tooth according to an embodiment of the present invention;
FIG. 2 is a schematic view showing an installation state of a single stator tooth according to a second embodiment of the present invention;
FIG. 3 is a schematic view of a stator with a single tooth according to a third embodiment of the present invention;
FIG. 4 is a schematic perspective view of a single stator tooth according to an embodiment of the present invention;
fig. 5 is a schematic perspective view of a single stator tooth according to a fourth embodiment of the present invention.
Description of reference numerals:
11-stator single tooth; 21-a connector; 30-a threaded connection;
12-a fixed part; 22-an extrusion;
13-connecting grooves;
14-a winding portion;
15-mating surfaces;
16-a projection;
17-pole shoe;
18-a lamellar structure;
19-an end plate;
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
In this application, the term "outer" refers to a direction away from the stator axis, and the term "inner" refers to a direction toward the stator axis.
Referring to fig. 1 to 4 together, the stator single tooth 11 of the present invention will now be described. The stator single tooth 11 comprises a fixed part 12 and a winding part 14, wherein the fixed part 12 is provided with a connecting groove 13 with an outward opening, at least one side surface of the connecting groove 13 is convexly provided with a convex part 16, and the convex part 16 is used for limiting the position of the fixed part 12 in the opening direction of the connecting groove 13; the winding portion 14 is provided inside the fixing portion 12 for winding.
Before the stator single teeth 11 are installed, the stator single teeth 11 with the corresponding number need to be subjected to left-handed winding and right-handed winding according to the number of left-handed coils and the number of right-handed coils needed by the stator, then the wound stator single teeth 11 are installed at a specified position, the stator single teeth 11 with the left-handed winding can be installed firstly, then the stator single teeth 11 with the right-handed winding can be installed, and the installation process is sequentially installed along the circumferential direction of the stator; the stator single teeth 11 of the left-hand winding and the stator single teeth 11 of the right-hand winding can be sequentially installed along the circumferential direction of the stator. When the stator is installed, the connecting piece 21 is required to extend into the connecting groove 13 of the stator single tooth 11, the pressing part 22 on the connecting piece 21 acts on the protruding part 16, so that the stator single tooth 11 is fixed in the radial direction of the stator (i.e. the opening direction of the connecting groove 13), and finally all the fixed stator single teeth 11 form the stator.
It can be understood that, in order to ensure the stability of the stator single teeth 11, the fixing portions 12 of two adjacent stator single teeth 11 are in contact with each other, but the winding portions 14 of two adjacent stator single teeth 11 are spaced apart, and the distance between two adjacent winding portions 14 is such that after the coils are wound, the coils on two winding portions 14 do not interfere with each other.
Compared with the prior art, the stator single teeth 11 are independently wound and installed, the winding sequence and the installation sequence are not limited, the die cost is reduced, the interference among the single teeth is avoided during winding, the installation process is simplified, and the winding accuracy can be improved; each stator single tooth 11 is individually installed by the connecting piece 21, and the position of the stator single tooth 11 in the radial direction of the stator (i.e. the opening direction of the connecting groove 13) is limited by the convex part 16, so that the connecting stability of the stator single tooth 11 is ensured.
In some embodiments, the connecting slot 13 may be configured as shown in fig. 1 to 4. Referring to fig. 1 to 4, the connection groove 13 is a through groove penetrating the fixing portion 12 in the thickness direction of the fixing portion 12. If the connecting groove 13 is only opened outwards, the connecting piece 21 needs to be inserted in the radial direction of the stator, and due to the interaction between the pressing part 22 on the connecting piece 21 and the protruding part 16, the pressing part 22 needs to be pried out from the bottom of the connecting groove 13 by means of a tool during disassembly; under the condition that connecting groove 13 link up for the thickness direction along fixed part 12, not only along the axial of stator or radial all can during the installation, beat extrusion portion 22 from the stator axle head during the dismantlement to demolish extrusion portion 22, the convenient operation of dismantling.
In some embodiments, the connecting slot 13 may be configured as shown in fig. 1, 2 and 4. Referring to fig. 1, 2 and 4, the protrusion 16 is provided at one side of the coupling groove 13, and an escape space is formed in the coupling groove 13 at an opposite side of the protrusion 16. Alternatively, the side surface of the coupling groove 13 on the opposite side of the protrusion 16 may form a right angle with the groove bottom surface of the coupling groove 13, or may form an obtuse angle. In this case, when the connecting member 21 is installed, the pressing portion 22 of the connecting member 21 mainly presses toward the side where the protruding portion 16 is provided, and all the stator single teeth 11 included in the stator have a pressing force in the clockwise direction or have a pressing force in the counterclockwise direction. Through the mutual squeezing action of stator monodentate 11, can also prevent to produce the installation that accumulative total error influences last stator monodentate 11 in the installation to dodge the space and can make things convenient for stretching into and taking out of connecting piece 21, can adjust the position of connecting piece 21 when the installation, prevent to block, make things convenient for the loading and unloading of connecting piece 21, and then conveniently fix a position the loading and unloading of monodentate 11.
In some embodiments, the connecting slot 13 may be configured as shown in fig. 2. Referring to fig. 2, the protrusions 16 are provided at opposite sides of the coupling groove 13, respectively. The two opposite bulges 16 can narrow the width of the opening of the connecting groove 13, the connecting piece 21 is embedded into the connecting groove 13 along the axial direction of the stator when being installed, and the connecting piece 21 and the stator single tooth 11 are more stably connected through the bulges 16 on the two opposite sides of the connecting groove 13, so that the installation effect of the stator single tooth 11 is optimized.
In some embodiments, the connecting groove 13 may be configured as shown in fig. 1 to 4. Referring to fig. 1 to 4, the protrusion 16 is a triangular prism, one side surface of which is fixed to the connection groove 13, and the side surface of which facing the inside forms a fitting surface 15, and the fitting surface 15 forms an acute angle space with the groove bottom surface of the connection groove 13. At this time, the included angle between the matching surface 15 and the groove bottom surface of the connecting groove 13 is an acute angle, after the connecting piece 21 is installed, the connecting piece 21 applies outward extrusion force to the matching surface 15, and the extrusion force has a component force perpendicular to the matching surface 15, so that the trend of extruding the stator single teeth 11 towards one side is automatically achieved after the connecting piece 21 is fixed, and the extrusion effect of the stator single teeth 11 can be achieved without adjusting the connecting piece 21 to extrude the stator single teeth 11 towards one side.
In this embodiment, the mating surface 15 is an inclined surface, and the side surface of the connecting groove 13 on the opposite side of the mating surface 15 may have the same inclination tendency as the mating surface 15, thereby forming an escape space.
As another alternative configuration of the protruding portion 16, the protruding portion 16 may have a rectangular parallelepiped shape, a cylindrical shape, a polyhedral shape, or the like, as long as the position of the stator single tooth 11 can be defined in the opening direction of the coupling groove 13 (the radial direction of the stator).
In some embodiments, the mating surface 15 may be configured as shown in fig. 1-4. Referring to fig. 1 to 4, the mating surface 15 is a flat surface or a zigzag curved surface. When the matching surface 15 is a plane, the installation is more convenient; when the matching surface 15 is a zigzag curved surface, the inclined surface on the extrusion part 22 matching with the matching surface is also in a corresponding shape, so that the contact area between the matching surface 15 and the extrusion part 22 is increased, and the fixing stability of the connecting piece 21 to the stator single tooth 11 is improved.
It should be noted that, when the mating surface 15 is a curved surface of a saw-tooth shape, the side surface on the opposite side of the mating surface 15 is only parallel to the general inclination tendency of the mating surface 15, that is, the side surface on the opposite side of the mating surface 15 is a plane satisfying the general inclination tendency thereof, so that an escape space is formed.
In some embodiments, the winding portion 14 may have a structure as shown in fig. 1 to 4. Referring to fig. 1 to 4, a pole shoe 17 is further disposed at an end of the winding portion 14 away from the fixing portion 12, and an inner side surface of the pole shoe 17 is an arc surface. The plurality of stator single teeth 11 need to be sequentially connected around the axial direction of the stator, the inner side surfaces of the pole shoes 17 are arc surfaces, after assembly is completed, the inner side surfaces of all the pole shoes 17 are concentric and non-concentric, and when the arc surfaces of the plurality of pole shoes 17 are non-concentric, non-uniform design of air gaps can be realized, so that air gap waveforms are more sinusoidal, and harmonic content is reduced; when the arc surfaces of the pole shoes 17 are concentric, better magnetic distribution of a magnetic field can be obtained; and the pole shoes 17 are respectively protruded at both sides of the winding part 14, and the width of the fixing part 12 is also larger than that of the winding part 14, so that the fixing part 12 and the pole shoes 17 limit the coil at both ends of the coil after the coil is wound on the winding part 14, and the coil is prevented from falling off.
In some embodiments, the pole piece 17 can be configured as shown in fig. 1 to 4. With reference to fig. 1 to 4, the pole shoe 17 tapers in thickness in the direction of the fixed lateral free side. In the installation, the pole shoes 17 on the adjacent stator single teeth 11 need not to generate mutual interference, when the length of the pole shoes 17 needs to be adjusted in the assembling process, the free sides of the pole shoes 17 can be ground, so that the length of the pole shoes 17 is reduced, the thickness of the free sides of the pole shoes 17 in the embodiment is small, the grinding is convenient, and the labor intensity is reduced.
In some embodiments, the fixing portion 12 may be configured as shown in fig. 5. Referring to fig. 5, each of the fixing portion 12 and the winding portion 14 includes sheet structures 18 sequentially stacked in the thickness direction thereof, end plates 19 are respectively disposed at both ends of the fixing portion 12 in the thickness direction, and the two end plates 19 are connected by a threaded connector 30 penetrating through the plurality of sheet structures 18. Alternatively, the threaded connector 30 is a screw and nuts connected to both ends of the screw. During installation, the screw rod penetrates through one end plate 19, the sheet structures 18 and the other end plate 19 in sequence, and then nuts at two ends of the screw rod are fixed, so that the structure is low in cost, and the fixing part 12 can be further fixed.
It should be noted that the shapes of the sheet structures 18 are the same, and the fixing portion 12 or the winding portion 14 is formed after being sequentially overlapped; the end plate 19 is identical in cross-sectional shape to the entire stator single tooth, so that tension is applied between the blade structures 18 when the screw connection 30 is fixed.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A stator monodentate comprising:
the fixing part is provided with a connecting groove with an outward opening, at least one side surface of the connecting groove is convexly provided with a convex part, and the convex part is used for limiting the position of the fixing part in the opening direction of the connecting groove; and
and the winding part is arranged on the inner side of the fixing part and used for winding.
2. The stator monodentate assembly of claim 1, wherein said connecting slots are through slots that extend through said fixed portion in a thickness direction of said fixed portion.
3. The stator monodentate assembly of claim 2 wherein said projections are disposed on one side of said connecting slots, and said connecting slots have relief spaces formed therein on an opposite side of said projections.
4. The stator monodentate of claim 2 wherein said projections are disposed on opposite sides of said connecting slot.
5. The stator monodentate assembly of claim 3 or 4 wherein said projections are triangular prisms having a side surface secured to said connecting slots, said inwardly facing side surface of said triangular prisms defining a mating surface that defines an acute angle space with said slot bottom surface of said connecting slots.
6. The stator monodentate assembly of claim 5 wherein said mating surface is planar or jagged.
7. The stator monodentate assembly of claim 1 wherein said winding portion further comprises a pole piece at an end of said winding portion remote from said fixed portion, an inner surface of said pole piece being a circular arc.
8. Stator monodentate according to claim 7, wherein the thickness of said pole shoes decreases in the direction of the fixed side towards the free side.
9. The stator monodentate assembly according to claim 1, wherein said fixed portion and said winding portion each comprise a plurality of lamellar structures stacked in series in a thickness direction thereof, and wherein said fixed portion has end plates at both ends in the thickness direction thereof, and wherein said end plates are connected to each other by a threaded connection passing through said plurality of lamellar structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122354436.9U CN215990340U (en) | 2021-09-26 | 2021-09-26 | Stator single tooth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122354436.9U CN215990340U (en) | 2021-09-26 | 2021-09-26 | Stator single tooth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215990340U true CN215990340U (en) | 2022-03-08 |
Family
ID=80571261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122354436.9U Active CN215990340U (en) | 2021-09-26 | 2021-09-26 | Stator single tooth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215990340U (en) |
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2021
- 2021-09-26 CN CN202122354436.9U patent/CN215990340U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Stator single tooth Effective date of registration: 20220507 Granted publication date: 20220308 Pledgee: Bank of China Limited Shijiazhuang Gaocheng sub branch Pledgor: HEBEI NEWSTAR ELECTRIC MOTOR Co.,Ltd. Registration number: Y2022130000030 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230710 Granted publication date: 20220308 Pledgee: Bank of China Limited Shijiazhuang Gaocheng sub branch Pledgor: HEBEI NEWSTAR ELECTRIC MOTOR Co.,Ltd. Registration number: Y2022130000030 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Single tooth stator Effective date of registration: 20230711 Granted publication date: 20220308 Pledgee: Bank of China Limited Shijiazhuang Gaocheng sub branch Pledgor: HEBEI NEWSTAR ELECTRIC MOTOR Co.,Ltd. Registration number: Y2023980048157 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |