CN219938042U - Stator punching sheet, stator core, motor, compressor and refrigeration equipment - Google Patents
Stator punching sheet, stator core, motor, compressor and refrigeration equipment Download PDFInfo
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- CN219938042U CN219938042U CN202320827251.1U CN202320827251U CN219938042U CN 219938042 U CN219938042 U CN 219938042U CN 202320827251 U CN202320827251 U CN 202320827251U CN 219938042 U CN219938042 U CN 219938042U
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- yoke
- stator
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- 238000004080 punching Methods 0.000 title claims abstract description 38
- 238000005057 refrigeration Methods 0.000 title claims abstract description 10
- 230000002093 peripheral effect Effects 0.000 claims abstract description 32
- 238000003475 lamination Methods 0.000 claims description 13
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 5
- 230000005672 electromagnetic field Effects 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a stator punching sheet, a stator core, a motor, a compressor and refrigeration equipment, wherein the stator punching sheet comprises a yoke part, a plurality of tooth parts and a plurality of concave structures; the plurality of tooth parts are arranged on the inner peripheral surface of the yoke part, are distributed at intervals along the circumferential direction of the yoke part, and form stator grooves between two adjacent tooth parts; the plurality of concave structures are distributed at equal intervals along the outer peripheral surface of the yoke part, the concave structures comprise first concave parts and second concave parts which are arranged at intervals, the first concave parts are arranged on the yoke parts corresponding to two adjacent tooth parts in a crossing mode and the yoke parts corresponding to the stator grooves between the two tooth parts, and the second concave parts are arranged on the yoke parts corresponding to one tooth part. The technical scheme of the utility model can improve stator fixed frequency and reduce high-frequency carrier noise of the motor.
Description
Technical Field
The utility model relates to the technical field of refrigeration equipment, in particular to a stator punching sheet, a stator core, a motor, a compressor and refrigeration equipment.
Background
The existing household air conditioner compressor motor mainly adopts a variable frequency motor, the input current of the variable frequency motor is a modulation wave, and the carrier wave of the modulation wave is a high-frequency carrier wave. When the stator punching sheet in the motor is improperly designed, the noise and vibration of the frequency band near the carrier wave of the motor and the compressor can be deteriorated, so that the performance of the motor and the compressor is affected, and the hearing feeling of a user is also seriously affected.
Disclosure of Invention
The utility model mainly aims to provide a stator punching sheet, which aims to improve stator fixed frequency and reduce high-frequency carrier noise of a motor.
In order to achieve the above object, the present utility model provides a stator lamination, comprising:
a yoke;
a plurality of teeth arranged on the inner peripheral surface of the yoke part and distributed at intervals along the circumferential direction of the yoke part, wherein a stator groove is formed between two adjacent teeth; and
the plurality of concave structures are distributed at equal intervals along the outer peripheral surface of the yoke part, the concave structures comprise first concave parts and second concave parts which are arranged at intervals, the first concave parts are arranged on the yoke parts corresponding to two adjacent tooth parts in a crossing mode and the yoke parts corresponding to the stator grooves between the two tooth parts, and the second concave parts are arranged on the yoke parts corresponding to one tooth part.
Optionally, each of the first concave portions and each of the second concave portions are staggered with each other in a circumferential direction of the yoke portion.
Optionally, along the peripheral direction of the yoke, an included angle α between two ends of the first concave portion and the center of the yoke satisfies: alpha is more than or equal to 15 degrees and less than or equal to 60 degrees;
and/or, along the peripheral direction of the yoke, the included angle beta between the two ends of the second concave part and the center of the yoke meets the following conditions: beta is more than or equal to 5 degrees and less than or equal to 20 degrees.
Optionally, at the yoke portionA minimum distance L between the first concave part and the center of the yoke part 1 min, the relation between the outer diameter D of the yoke and the width b of the yoke satisfies: d/2-b < L 1 min≤D/2-b/5；
And/or, in the radial direction of the yoke, the minimum distance L between the second concave part and the center of the yoke 2 min, the relation between the outer diameter D of the yoke and the width b of the yoke satisfies: d/2-b < L 2 min≤D/2-b/5。
Optionally, k concave structures are provided, k is greater than or equal to 3 and less than or equal to 5.
Alternatively, k is equal to 4.
Optionally, the number Q of stator slots satisfies: q is less than or equal to 12.
Alternatively, Q is equal to 12.
The utility model also provides a stator core, which comprises a plurality of stator punching sheets, wherein each stator punching sheet is arranged in an axial lamination way.
The utility model also proposes an electric machine comprising a stator core as described above.
Optionally, the motor includes the stator core and a rotor that are mated, and a pole pair number p of the rotor is less than or equal to 5.
The utility model also proposes a compressor comprising a motor as described above.
The utility model also proposes a refrigeration device comprising a compressor as described above.
According to the technical scheme, the plurality of concave structures are arranged on the outer peripheral surface of the yoke part, the concave structures are distributed at equal intervals along the circumferential direction of the yoke part, each concave structure comprises a first concave part and two second concave parts which are arranged at intervals, the first concave parts are arranged on the yoke parts corresponding to two adjacent tooth parts in a crossing mode and the yoke parts corresponding to stator grooves between the two tooth parts, the second concave parts are arranged on the yoke parts corresponding to one tooth part, the number of concave structures formed on the outer peripheral surface of the yoke part is distributed reasonably, the outer peripheral surface of part of the yoke part is separated from the inner wall surface of the shell effectively, resonance is reduced, noise is reduced, the structural stability and strength of a stator punching sheet are met, meanwhile, the circulation of an electromagnetic field of the yoke part is guaranteed, and the efficiency of a motor with the stator punching sheet is improved. In addition, the manufacturing cost and the weight can be reduced.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an embodiment of a stator lamination of the present utility model;
FIG. 2 is a schematic view of parameters of each portion of the stator lamination of FIG. 1;
FIG. 3 is a graph showing the noise contrast of the compressor of the present utility model at 60 rps;
fig. 4 is a graph showing the noise contrast of the compressor of the present utility model at 90 rps.
Reference numerals illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the name |
| 10 | Yoke part | 30 | Concave structure |
| 20 | Tooth part | 31 | First concave part |
| 21 | Stator groove | 32 | Second concave part |
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout is meant to include three side-by-side schemes, for example, "a and/or B", including a scheme, or B scheme, or a scheme that is satisfied by both a and B. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
The utility model provides a stator punching sheet.
Referring to fig. 1 to 4, in an embodiment of the present utility model, the stator punching sheet includes a yoke 10, a plurality of teeth 20 and a plurality of concave structures 30, wherein the plurality of teeth 20 are disposed on an inner circumferential surface of the yoke 10 and are arranged at intervals along a circumferential direction of the yoke 10, and a stator slot 21 is formed between two adjacent teeth 20; the plurality of concave structures 30 are arranged at equal intervals along the outer peripheral surface of the yoke 10, the concave structures 30 include a first concave portion 31 and a second concave portion 32 which are arranged at intervals, the first concave portion 31 spans over the yoke 10 corresponding to two adjacent tooth portions 20 and the yoke 10 corresponding to the stator slot 21 between two tooth portions 20, and the second concave portion 32 is arranged on the yoke 10 corresponding to one tooth portion 20. Therefore, parameters of the stator punching sheet can be reasonably optimized, the optimal performance requirement is achieved, and further high-frequency carrier noise of a motor with the stator punching sheet is reduced by improving stator frequency fixing.
The compressor includes the motor, and the motor includes stator core, and stator core includes the stator towards piece that a plurality of stacks set up, and the stator towards piece can be the silicon steel sheet, and the stator towards piece includes yoke 10 and a plurality of tooth portion 20, and yoke 10 is cyclic annular structure, and wherein, the inner peripheral surface of yoke 10 is equipped with a plurality of tooth portions 20, and each tooth portion 20 is arranged along the circumference of yoke 10 evenly at intervals, and radially inwards extends along yoke 10, and the stator groove 21 that supplies the winding coil to place is defined between each adjacent tooth portion 20, and then is used for driving the rotor to rotate.
The outer peripheral surface of the yoke 10 is provided with a plurality of concave structures 30, each concave structure 30 is arranged on the outer peripheral surface of the yoke 10, and each concave structure 30 is distributed at equal intervals along the circumferential direction of the yoke 10 so as to ensure the structural stability of stator punching sheets, the opening of each concave structure 30 is arranged in the direction away from the corresponding tooth 20, so that the gap between the yoke 10 and a motor shell is increased, wherein each concave structure 30 comprises a first concave part 31 and two second concave parts 32 which are arranged at intervals, the first concave part 31 spans the yoke 10 corresponding to the adjacent two teeth 20 and the yoke 10 corresponding to a stator groove 21 between the two teeth 20, the second concave parts 32 are arranged on the yoke 10 corresponding to one tooth 20, in other words, the concave structures 30 are arranged on the yoke 10 corresponding to the three adjacent teeth 20, the number of the concave structures 30 formed on the outer peripheral surface of the yoke 10 is reasonably distributed, the outer peripheral surface of the yoke 10 and the inner wall surface of the shell are effectively separated, the occurrence of the reduction of noise is reduced, the stability of the stator punching sheets is satisfied, the stator punching sheets have high-flow efficiency performance of the stator punching sheets are ensured, and the stator punching sheets have high-flow efficiency performance. However, in other embodiments, the first recess 31 may span the yoke 10 to which the plurality of teeth 20 are connected, and the plurality may refer to two or more, specifically, may be configured according to the outer diameter of the yoke 10. In addition, the manufacturing cost and the weight can be reduced.
According to the technical scheme of the utility model, the plurality of concave structures 30 are arranged on the outer peripheral surface of the yoke 10, and the concave structures 30 are uniformly distributed at intervals along the circumferential direction of the yoke 10, wherein each concave structure 30 comprises a first concave part 31 and two second concave parts 32 which are arranged at intervals, the first concave part 31 is arranged on the yoke 10 corresponding to two adjacent teeth 20 and the yoke 10 corresponding to a stator groove 21 between the two teeth 20 in a straddling way, the second concave part 32 is arranged on the yoke 10 corresponding to one tooth 20, the number of the concave structures 30 formed on the outer peripheral surface of the yoke 10 is favorably distributed reasonably, the outer peripheral surface of part of the yoke 10 is effectively separated from the inner wall surface of the shell, resonance is reduced, noise is reduced, the structural stability and strength of a stator punching sheet are met, the electromagnetic field circulation of the yoke 10 is ensured, and the efficiency of a motor with the stator punching sheet is improved. In addition, the manufacturing cost and the weight can be reduced.
Referring to fig. 1, in an embodiment, each of the first concave portions 31 and each of the second concave portions 32 are staggered and uniformly distributed along the circumferential direction of the yoke 10, so as to effectively improve the structural stability of the stator lamination, so as to optimize the magnetic circuit structure from the tooth portion 20 to the yoke 10, ensure the electromagnetic field circulation of the yoke 10, and improve the performance efficiency of the motor. However, in other embodiments, two second concave portions 32 are disposed between two first concave portions 31.
Referring to fig. 2, in an embodiment, along the outer circumferential direction of the yoke 10, the included angle α between the two ends of the first recess 31 and the center of the yoke 10 satisfies: alpha is more than or equal to 15 degrees and less than or equal to 60 degrees; and/or, along the peripheral direction of the yoke 10, the included angle β between the two ends of the second concave portion 32 and the center of the yoke 10 satisfies: and 5 DEG.ltoreq.beta.ltoreq.20 DEG, the opening widths of the first recess 31 and the second recess 32 on the outer peripheral surface of the yoke 10 are reasonably optimized, and most of the outer peripheral surface of the yoke 10 and the inner wall of the motor housing are reliably separated. Specifically, when the value of the included angle α is smaller than 15 ° and the value of the included angle β is smaller than 5 °, because the opening widths of the first concave portion 31 and the second concave portion 32 are smaller, risks such as stress deformation and distortion of the stator lamination cannot be effectively reduced due to a larger contact area, vibration transmitted to the housing cannot be effectively reduced, the natural frequency of the housing and the working frequency of the motor during operation are staggered, and therefore resonance and noise cannot be avoided; when the value of the included angle α is greater than 60 ° and the value of the included angle β is greater than 20 °, the connection stability of the stator laminations is easily affected, and the magnetic flux from the tooth portion 20 to the yoke portion 10 is easily affected due to the large opening widths of the first recess 31 and the second recess 32, thereby reducing the performance efficiency of the motor.
Therefore, the specific value of the included angle alpha is set between 15 degrees and 60 degrees, the specific value of the included angle beta is set between 5 degrees and 20 degrees, the stator punching is reliably fixed, and meanwhile, the outer peripheral surface of most of the yoke part 10 and the inner wall of the motor shell are reliably separated, so that the electromagnetic field distortion caused by deformation and distortion of the stator punching is effectively reduced, the vibration transmitted to the shell is effectively reduced, the natural frequency of the shell is staggered with the working frequency of the motor during working, resonance is effectively avoided, noise is reduced, meanwhile, the magnetic circuit structure from the tooth part 20 to the yoke part 10 is optimized, the magnetic force acting on the shell is further reduced, the reaction force acting on the stator core formed by lamination of the stator punching is effectively reduced, the stability of the stator core during rotation is improved, the iron loss during the motor operation is reduced, and the performance efficiency of the motor is improved.
Specifically, the specific value of the included angle alpha can be 15 degrees, 20 degrees, 25 degrees, 30 degrees, 35 degrees, 40 degrees, 45 degrees, 50 degrees, 55 degrees, 60 degrees and the like; the specific value of the included angle β may be 5 °, 6 °, 7 °, 8 °, 9 °, 10 °, 11 °, 12 °, 13 °, 14 °, 15 °, 16 °, 17 °, 18 °, 19 °, 20 °, and the like.
Referring to fig. 2, in an embodiment, in a radial direction of the yoke 10, a minimum distance L between the first recess 31 and a center of the yoke 10 1 min, the relation between the outer diameter D of the yoke 10 and the width b of the yoke 10 satisfies: d/2-b < L 1 min is less than or equal to D/2-b/5; and/or, in the radial direction of the yoke 10, a minimum distance L between the second recess 32 and the center of the yoke 10 2 min, the relation between the outer diameter D of the yoke 10 and the width b of the yoke 10 satisfies: d/2-b < L 2 min is less than or equal to D/2-b/5, and the unit is millimeter. The depths of the first concave part 31 and the second concave part 32 in the radial direction of the yoke 10 are reasonably optimized, the gap between the outer peripheral surface of part of the yoke 10 and the inner wall of the motor shell is reliably increased, the weight of the stator punching sheet is reduced, and the magnetic circuit structure from the tooth part 20 to the yoke 10 is optimized。
Specifically, since the first concave portion 31 spans the yoke 10 to which the two teeth 20 are connected, the second concave portion 32 is provided in the yoke 10 corresponding to the teeth 20, and L is defined as 1 min is less than D/2-b, L 2 When min is less than D/2-b, the adjacent two teeth 20 cannot be reliably connected through the yoke 10, the yoke 10 of the stator punching sheet has a fracture, and the yoke 10 corresponding to the teeth 20 is easy to deform, distort, break and the like due to stress, so that the structure of the stator punching sheet is invalid, and the structure of the stator punching sheet and the magnetic circuit structure from the teeth 20 to the yoke 10 are easily affected. When L 1 min is greater than D/2-b/5 and L 2 When min is greater than D/2-b/5, the gap between the outer peripheral surface of the yoke part 10 and the inner wall of the motor shell is too small, so that the yoke part 10 and the motor shell cannot be well separated, and vibration transmitted to the shell cannot be effectively reduced to avoid resonance, so that larger noise is easily generated to a great extent, the use comfort and experience are reduced, the service life of the motor is shortened, and the performance efficiency of the motor is reduced.
Thus, L is 1 min and L 2 The specific value setting of min is between D/2-b and D/2-b/5, and through reasonable setting of the depths of the first concave part 31 and the second concave part 32 in the radial direction, the clearance between the outer peripheral surface of part of the yoke part 10 and the inner wall of the motor shell is increased, the weight of the stator punching sheet is reduced, the magnetic circuit structure from the tooth part 20 to the yoke part 10 is optimized, thereby reducing noise, and improving the running stability and the performance efficiency of the motor with the stator punching sheet.
In addition, the clearance between the stator punching sheet and the motor shell is reasonably arranged, and a circulation channel can be additionally arranged for the refrigerant, so that the refrigerant can reliably flow, and the service life of the motor is prolonged.
Optionally, in an embodiment, k recessed structures 30 are provided, where k is greater than or equal to 3 and less than or equal to 5; specifically, when the number of the concave structures 30 is less than 3, most of the outer peripheral surfaces of the yokes 10 are connected with the motor housing, the vibration transmitted to the housing is larger, the natural frequency of the housing cannot be staggered from the working frequency of the motor during working, and the gaps between the yokes 10 and the housing are smaller, so that resonance is easy to occur, the heat dissipation effect is poor, the noise is increased, the service life of the motor is shortened, the performance efficiency of the motor is reduced, and the use experience of a user is reduced; when the quantity of concave structure 30 is greater than 5, influence the structural stability of stator towards the piece easily, and then influence the stability when the motor operation, reduce the performance efficiency of motor, increase noise, reduce user's use experience and feel. Therefore, the number of the concave structures 30 is set between 3 and 5, so that most of the outer peripheral surface of the yoke portion 10 can be reliably separated from the inner wall of the motor housing, vibration transmitted to the housing can be reduced, resonance is effectively avoided, noise is reduced, meanwhile, the magnetic circuit structure from the tooth portion 20 to the yoke portion 10 is optimized, the stability of the stator core during rotation is improved, the iron loss of the motor during operation is reduced, and the performance efficiency of the motor is improved. The number of the concave structures 30 may be 3, 4, or 5. The number of the recess structures 30 on the stator lamination shown in fig. 1 is 4.
Specifically, in one embodiment, k is equal to 4, that is, the number of the concave structures 30 on the stator lamination is 4, and the 4 concave structures 30 are distributed along the outer peripheral surface of the yoke 10, so that most of the outer peripheral surface of the yoke 10 is reliably separated from the inner wall of the motor housing, thereby being beneficial to improving the performance efficiency of the motor.
Alternatively, in an embodiment, the number Q of stator slots 21 satisfies: q is less than or equal to 12; the number of stator slots 21 can be selected according to practical needs. Specifically, Q is equal to 12.
The utility model also provides a stator core, which comprises a plurality of stator punching sheets, and the specific structure of the stator punching sheets refers to the embodiment, and as the stator core adopts all the technical schemes of all the embodiments, the stator core at least has all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted herein. The stator punching sheets are arranged in an overlapping mode along the axial direction so as to reduce iron loss when the motor provided with the stator core runs.
The utility model also provides a motor, which comprises a stator core, wherein the specific structure of the stator core refers to the embodiment, and the motor adopts all the technical schemes of all the embodiments, so that the motor has at least all the beneficial effects brought by the technical schemes of the embodiments, and the details are not repeated here.
Specifically, the motor includes a stator core and a rotor that are mated, wherein the pole pair number p of the rotor is less than or equal to 5, i.e., the pole number may be 4, 6, 8, etc. When the stator slot number Q is 12, the motor may be a 12 slot 8 pole motor.
The utility model also provides a compressor, which comprises a motor, wherein the specific structure of the motor refers to the embodiment, and as the compressor adopts all the technical schemes of all the embodiments, the compressor at least has all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted herein. According to the definition of relevant parameters of stator punching sheets in the motor, the noise pair of the compressor of the utility model and the comparison model is shown in a graph in figure 3 at 60rps, and the noise pair of the compressor of the utility model and the comparison model is shown in a graph in figure 4 at 90rps, so that the performance of the compressor of the utility model is obviously better than that of the comparison model.
The utility model also provides a refrigeration device which comprises a compressor, wherein the specific structure of the compressor refers to the embodiment, and as the refrigeration device adopts all the technical schemes of all the embodiments, the refrigeration device at least has all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted herein.
The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.
Claims (13)
1. A stator lamination, comprising:
a yoke;
a plurality of teeth arranged on the inner peripheral surface of the yoke part and distributed at intervals along the circumferential direction of the yoke part, wherein a stator groove is formed between two adjacent teeth; and
the plurality of concave structures are distributed at equal intervals along the outer peripheral surface of the yoke part, the concave structures comprise first concave parts and second concave parts which are arranged at intervals, the first concave parts are arranged on the yoke parts corresponding to two adjacent tooth parts in a crossing mode and the yoke parts corresponding to the stator grooves between the two tooth parts, and the second concave parts are arranged on the yoke parts corresponding to one tooth part.
2. The stator plate of claim 1, wherein each of the first recesses and each of the second recesses are staggered with respect to each other in a circumferential direction of the yoke.
3. The stator punching sheet according to claim 1, wherein an angle α between both ends of the first concave portion and a center of the yoke portion in an outer circumferential direction of the yoke portion satisfies: alpha is more than or equal to 15 degrees and less than or equal to 60 degrees;
and/or, along the peripheral direction of the yoke, the included angle beta between the two ends of the second concave part and the center of the yoke meets the following conditions: beta is more than or equal to 5 degrees and less than or equal to 20 degrees.
4. The stator punching sheet according to claim 1, characterized in that, in a radial direction of the yoke, a minimum distance L between the first recess and a center of the yoke 1 min, the relation between the outer diameter D of the yoke and the width b of the yoke satisfies: d/2-b < L 1 min≤D/2-b/5；
And/or, in the radial direction of the yoke, the minimum distance L between the second concave part and the center of the yoke 2 min, the relation between the outer diameter D of the yoke and the width b of the yoke satisfies: d/2-b < L 2 min≤D/2-b/5。
5. The stator plate of claim 1 wherein k recessed features are provided, k being greater than or equal to 3 and less than or equal to 5.
6. The stator plate of claim 5 wherein k is equal to 4.
7. The stator core of claim 1 wherein the number Q of stator slots satisfies: q is less than or equal to 12.
8. The stator plate of claim 7 wherein Q is equal to 12.
9. A stator core comprising a plurality of stator laminations as claimed in any one of claims 1 to 8, each of said stator laminations being arranged in axial compression.
10. An electric machine comprising the stator core of claim 9.
11. The electric machine of claim 10, wherein the electric machine comprises the stator core and a rotor mated, the rotor having a pole pair number p of less than or equal to 5.
12. A compressor comprising an electric machine as claimed in any one of claims 10 to 11.
13. A refrigeration apparatus comprising the compressor of claim 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320827251.1U CN219938042U (en) | 2023-04-13 | 2023-04-13 | Stator punching sheet, stator core, motor, compressor and refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320827251.1U CN219938042U (en) | 2023-04-13 | 2023-04-13 | Stator punching sheet, stator core, motor, compressor and refrigeration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219938042U true CN219938042U (en) | 2023-10-31 |
Family
ID=88498332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320827251.1U Active CN219938042U (en) | 2023-04-13 | 2023-04-13 | Stator punching sheet, stator core, motor, compressor and refrigeration equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219938042U (en) |
-
2023
- 2023-04-13 CN CN202320827251.1U patent/CN219938042U/en active Active
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