CN220570370U - Stator structure and motor - Google Patents
Stator structure and motor Download PDFInfo
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- CN220570370U CN220570370U CN202322089960.7U CN202322089960U CN220570370U CN 220570370 U CN220570370 U CN 220570370U CN 202322089960 U CN202322089960 U CN 202322089960U CN 220570370 U CN220570370 U CN 220570370U
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- 238000004080 punching Methods 0.000 claims description 28
- 238000004804 winding Methods 0.000 claims description 5
- 238000003475 lamination Methods 0.000 claims 2
- 230000006978 adaptation Effects 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 4
- 238000009413 insulation Methods 0.000 description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model provides a stator structure and a motor. The stator structure comprises stator iron cores (1), wherein each stator iron core (1) comprises stator yoke parts (2), stator grooves (3) and stator teeth (8), the number of the stator grooves (3) is 12, the stator iron cores (1) are matched with 12S10P motors and 12S8P motors, and the width bt of each stator tooth (8) of each stator iron core (1) and the width eb of each stator yoke part (2) are smaller than or equal to 0.89mm and smaller than or equal to bt-eb and smaller than or equal to 1.5mm. According to the stator structure provided by the utility model, rotor structures with different pole numbers can be adapted, so that motors formed by the rotor structures with different pole numbers have higher performance.
Description
Technical Field
The utility model relates to the technical field of motors, in particular to a stator structure and a motor.
Background
The motor is used as a power source of an electric appliance or various machines, and mainly has the main function of converting mechanical energy into electric energy, and the motor mainly comprises: the stator is provided with a stator coil, the rotor is provided with magnetic steel, and the rotor is rotated by utilizing the cooperation of the magnetic steel and the stator coil.
The current motor stator structure is designed corresponding to a single rotor structure, so that the stator structure has poor adaptability and cannot adapt to rotor structures with different pole numbers.
Disclosure of Invention
The utility model mainly aims to provide a stator structure and a motor, which can be adapted to rotor structures with different pole numbers, so that the motor formed by the rotor structures with different pole numbers has higher performance.
In order to achieve the above object, according to an aspect of the present utility model, there is provided a stator structure including a stator core including a stator yoke, a number of stator slots, and stator teeth, the number of the stator slots being 12, the stator core being adapted to a 12S10P motor and a 12S8P motor, a width bt of the stator teeth of the stator core and a width eb of the stator yoke satisfying 0.89 mm-bt-eb 1.5mm.
Further, the outer diameter of the stator yoke is D1, and the inner diameter of the stator yoke is D2, wherein D2/D1 is more than or equal to 0.87 and less than or equal to 0.91.
Further, the stator structure further includes an insulation bobbin and coils wound on the insulation bobbin and the stator teeth.
Further, the 12S10P motor and the 12S8P motor share the same insulating skeleton.
Further, the insulating framework is compatible with three-phase symmetrical windings of 12S10P motors and 12S8P motors.
Further, the stator core comprises a first stator punching sheet and a second stator punching sheet, the stator outer diameter and the tooth top structure of the first stator punching sheet and the stator tooth top structure of the second stator punching sheet are the same, the groove types of the stator grooves are different, the width of the stator teeth of the first stator punching sheet is smaller than that of the stator teeth of the second stator punching sheet, and the width of the stator yoke part of the first stator punching sheet is smaller than that of the stator yoke part of the second stator punching sheet.
Further, the stator structure further comprises an insulating framework, the first stator punching sheet is overlapped to form a first stator section, the second stator punching sheet is overlapped to form a second stator section, the first stator section is located at two ends of the second stator section, and the insulating framework is embedded into the second stator section and wraps the first stator section.
Further, the axial height of the first stator section at one end of the second stator section is 1 mm-2 mm.
Further, the outer circumference of the stator core is provided with grooves corresponding to the stator teeth, and the depth of at least one groove is larger than the depths of other grooves.
Further, the circumferential width b of the groove satisfies 0.85 bt.ltoreq.b.ltoreq.1.05 bt; and/or the radial depth h of the groove is more than or equal to 0.2bt and less than or equal to 0.5bt.
According to another aspect of the utility model, there is provided an electric machine comprising a stator structure and a rotor structure, the stator structure being the stator structure described above, the stator structure being arranged around the rotor structure and forming an air gap with the rotor structure.
Further, the motor includes a 12S10P motor and a 12S8P motor, and the outer diameters of the rotor structures of the 12S10P motor and the 12S8P motor are the same.
By applying the technical scheme of the utility model, the stator structure comprises a stator core, the stator core comprises stator yokes, stator grooves and stator teeth, the number of the stator grooves is 12, the stator core is matched with a 12S10P motor and a 12S8P motor, and the width bt of the stator teeth of the stator core and the width eb of the stator yokes meet the requirement of 0.89 mm-bt-eb being less than or equal to 1.5mm. The stator structure limits the relation between the stator yoke part of the stator core and the width of the stator teeth, so that the obtained stator core is suitable in tooth width and yoke width, and can be applied to not only 12S10P motors but also 12S8P motors, so that motors can be designed with better efficiency under different rotor pole numbers, 10-pole and 8-pole motor performances are compatible, and better efficiency of 12S10P motors and 12S8P motors is obtained.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
fig. 1 shows a schematic structural view of a second stator segment of a stator structure of an embodiment of the utility model;
fig. 2 shows a schematic structural view of a first stator segment of a stator structure of an embodiment of the utility model;
fig. 3 shows a schematic structural diagram of a 12S8P motor according to an embodiment of the present utility model;
fig. 4 shows a schematic structural diagram of a 12S10P motor according to an embodiment of the present utility model;
fig. 5 shows a schematic perspective view of a stator structure of an embodiment of the present utility model; and
fig. 6 shows a schematic perspective view of the motor of the present utility model.
Wherein the above figures include the following reference numerals:
1. a stator core; 2. a stator yoke; 3. a stator groove; 4. an insulating skeleton; 5. a first stator segment; 6. a second stator segment; 7. a groove; 8. stator teeth; 9. a rotor structure.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1 to 6 in combination, according to an embodiment of the present utility model, a stator structure includes a stator core 1, the stator core 1 includes a stator yoke 2, stator slots 3 and stator teeth 8, the number of the stator slots 3 is 12, the stator core 1 is adapted to a 12S10P motor and a 12S8P motor, and a width bt of the stator teeth 8 of the stator core 1 and a width eb of the stator yoke 2 satisfy 0.89 mm-bt-eb 1.5mm.
In the motor scheme, a 12S10P structure and a 12S8P structure exist, and motors with different slot pole numbers generally have different stator structures and rotor structures, so that the 12S10P motor and the 12S8P motor have different rotor and stator structures. The application provides a 12 groove stator structure, can dispose different rotor structure respectively, constitutes the motor of two kinds of different pole numbers, and very big compatibility can guarantee the minimization of motor output cost.
In this embodiment, the stator structure defines the relationship between the stator yoke portion of the stator core and the widths of the stator teeth, so that the obtained stator core is suitable for not only 12S10P motors but also 12S8P motors, so that the motors can be designed with better efficiency under different rotor pole numbers, and the performances of the 10-pole and 8-pole motors are compatible, and better efficiency of the 12S10P motors and the 12S8P motors is obtained.
In one embodiment, the outer diameter of the stator yoke 2 is D1, the inner diameter of the stator yoke 2 is D2, and 0.87.ltoreq.D2/D1.ltoreq.0.91.
At any moment when the 12-slot motor operates, the main magnetic field passes through the stator tooth parts, and is generally and evenly split along the stator yokes at the two ends of the stator tooth parts, the yoke width has great influence on the main magnetic field, the motor efficiency is restricted, and the proper yoke width can be formed by limiting the proportional relation between the inner diameter and the outer diameter of the stator yokes, so that the main magnetic field can fully pass through the stator yokes, waste caused by the too wide stator yokes is avoided, and the motor efficiency can be effectively improved.
In one embodiment, the stator structure further comprises an insulating former 4 and coils wound on the insulating former 4 and the stator teeth 8.
In one embodiment, the 12S10P motor and the 12S8P motor share the same insulating framework 4, and the insulating framework 4 can be manufactured by a set of dies, so that the die sinking of the insulating frameworks is not required to be performed for the 12S10P motor and the 12S8P motor respectively, and the die sinking cost can be effectively reduced.
In one embodiment, the insulating skeleton 4 is compatible with three-phase symmetrical windings of the 12S10P motor and the 12S8P motor, so that the insulating skeleton 4 can simultaneously meet winding requirements of the 12S10P motor and the 12S8P motor.
In one embodiment, the insulation framework 4 comprises a lead end framework positioned at a lead end, a wire passing end framework positioned at a wire passing end and an insulation structure positioned between the lead end framework and the wire passing end framework, the coil is wound on the insulation framework 4, contact with the stator core 1 can be avoided through the insulation framework 4, and the working performance of the coil is guaranteed. The lead end framework is an external lead wire, the wire passing end framework is a copper wire wound on the tooth part and the outer wall of the framework is wound, and 8-pole and 10-pole winding can be supported.
In one embodiment, the stator core 1 includes a first stator punching sheet and a second stator punching sheet, the stator outer diameters and tooth tops of the first stator punching sheet and the second stator punching sheet are identical in structure, the slot types of the stator slots 3 are different, the width of the stator teeth 8 of the first stator punching sheet is smaller than the width of the stator teeth 8 of the second stator punching sheet, and the width of the stator yoke 2 of the first stator punching sheet is smaller than the width of the stator yoke 2 of the second stator punching sheet.
In one embodiment, the stator structure further comprises an insulating framework 4, the first stator punching sheet is laminated to form a first stator section 5, the second stator punching sheet is laminated to form a second stator section 6, the first stator section 5 is positioned at two ends of the second stator section 6, the insulating framework 4 is embedded into the second stator section 6 and wraps the first stator section 5, so that copper consumption can be effectively reduced, framework materials are saved, and cost is reduced.
In one embodiment, the axial height of the first stator segment 5 at one end of the second stator segment 6 is 1 mm-2 mm, the depth of the lead end framework embedded in the stator core is 1 mm-2 mm, and the depth of the lead end framework embedded in the stator core is 1 mm-2 mm, so that the depth of the lead end framework embedded in the stator core is consistent with the axial height of the first stator segment 5 at one side, the depth of the lead end framework embedded in the stator core is consistent with the axial height of the first stator segment 5 at the other side, the structures of the lead end framework and the lead end framework are consistent with the groove type of the first stator segment 5, the first stator segment 5 can be well wrapped, and the insulation structure between the lead end framework and the lead end framework is consistent with the groove type of the second stator segment 6, so that effective insulation is formed for the second stator segment 6.
In one embodiment, the outer circumference of the stator core 1 is provided with grooves 7 corresponding to the stator teeth 8, at least one groove 7 having a depth greater than the depth of the other grooves 7. The corresponding position of each stator tooth is provided with a groove 7, ventilation gas is used for a heat dissipation channel, the deeper groove is matched with the tool to position the stator, and the situation that the stator is specially provided with position requirements for the stator mounting shell is met.
In one embodiment, the circumferential width b of the groove 7 satisfies 0.85 bt.ltoreq.b.ltoreq.1.05 bt; and/or the radial depth h of the groove 7 satisfies 0.2 bt.ltoreq.h.ltoreq.0.5 bt. The circumferential width and the radial depth of the groove 7 are limited, so that the circumferential width and the radial depth are related to the tooth width of the stator teeth 8, an optimal flow channel can be limited according to the tooth width, the influence on the tooth width and the yoke width of the motor can be avoided, the motor efficiency is influenced, and good flow can be realized.
According to an embodiment of the utility model, the motor comprises a stator structure and a rotor structure 9, wherein the stator structure is the stator structure, and the stator structure is sleeved outside the rotor structure 9 and forms an air gap with the rotor structure 9.
In one embodiment, the motor comprises a 12S10P motor and a 12S8P motor, the outer diameters of the rotor structures 9 of the 12S10P motor and the 12S8P motor being the same. The stator inner and outer diameters of the two structures are the same, the rotor inner and outer diameters are the same, the compatibility is strong, and the mold gauge is unified.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (12)
1. The utility model provides a stator structure, its characterized in that includes stator core (1), stator core (1) include stator yoke (2), stator groove (3) and stator tooth (8), the quantity of stator groove (3) is 12, stator core (1) adaptation 12S10P motor and 12S8P motor, the width bt of stator tooth (8) of stator core (1) and the width eb of stator yoke (2) satisfy 0.89mm and are less than or equal to bt-eb and are less than or equal to 1.5mm.
2. The stator structure according to claim 1, characterized in that the outer diameter of the stator yoke (2) is D1, the inner diameter of the stator yoke (2) is D2,0.87 ∈d2/d1 ∈0.91.
3. The stator structure according to claim 1, characterized in that it further comprises an insulating skeleton (4) and coils wound on the insulating skeleton (4) and the stator teeth (8).
4. A stator structure according to claim 3, characterized in that the 12S10P motor and 12S8P motor share the same insulating skeleton (4).
5. The stator structure according to claim 4, characterized in that the insulating skeleton (4) is compatible with three-phase symmetrical windings of the 12S10P motor and 12S8P motor.
6. The stator structure according to any one of claims 1 to 5, characterized in that the stator core (1) comprises a first stator punching and a second stator punching, the stator outer diameters and tooth tops of the first stator punching and the second stator punching are identical in structure, the slot types of the stator slots (3) are different, the width of the stator teeth (8) of the first stator punching is smaller than the width of the stator teeth (8) of the second stator punching, and the width of the stator yoke (2) of the first stator punching is smaller than the width of the stator yoke (2) of the second stator punching.
7. The stator structure according to claim 6, characterized in that the stator structure further comprises an insulating skeleton (4), the first stator laminations are laminated to form a first stator segment (5), the second stator laminations are laminated to form a second stator segment (6), the first stator segment (5) is located at two ends of the second stator segment (6), and the insulating skeleton (4) is embedded in the second stator segment (6) and wraps the first stator segment (5).
8. Stator structure according to claim 7, characterized in that the axial height of the first stator segment (5) at one end of the second stator segment (6) is 1-2 mm.
9. Stator structure according to any one of claims 1 to 5, characterized in that the outer circumference of the stator core (1) is provided with grooves (7) corresponding to the stator teeth (8), the depth of at least one of the grooves (7) being greater than the depth of the other grooves (7).
10. The stator structure according to claim 9, characterized in that the circumferential width b of the groove (7) satisfies 0.85bt +.b +.1.05 bt; and/or the radial depth h of the groove (7) is more than or equal to 0.2bt and less than or equal to 0.5bt.
11. An electric machine comprising a stator structure and a rotor structure (9), characterized in that the stator structure is a stator structure according to any one of claims 1 to 10, which stator structure is arranged outside the rotor structure (9) and forms an air gap with the rotor structure (9).
12. The electric machine according to claim 11, characterized in that the electric machine comprises a 12S10P electric machine and a 12S8P electric machine, the outer diameters of the rotor structures (9) of the 12S10P electric machine and the 12S8P electric machine being identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322089960.7U CN220570370U (en) | 2023-08-03 | 2023-08-03 | Stator structure and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322089960.7U CN220570370U (en) | 2023-08-03 | 2023-08-03 | Stator structure and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220570370U true CN220570370U (en) | 2024-03-08 |
Family
ID=90096015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322089960.7U Active CN220570370U (en) | 2023-08-03 | 2023-08-03 | Stator structure and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220570370U (en) |
-
2023
- 2023-08-03 CN CN202322089960.7U patent/CN220570370U/en active Active
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