WO2023045263A1 - 定子铁芯、电机结构和衣物处理装置 - Google Patents

定子铁芯、电机结构和衣物处理装置 Download PDF

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Publication number
WO2023045263A1
WO2023045263A1 PCT/CN2022/078899 CN2022078899W WO2023045263A1 WO 2023045263 A1 WO2023045263 A1 WO 2023045263A1 CN 2022078899 W CN2022078899 W CN 2022078899W WO 2023045263 A1 WO2023045263 A1 WO 2023045263A1
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WO
WIPO (PCT)
Prior art keywords
stator
punching piece
punching
punches
stator core
Prior art date
Application number
PCT/CN2022/078899
Other languages
English (en)
French (fr)
Inventor
杨雄
李文瑞
吴越虹
Original Assignee
佛山市威灵洗涤电机制造有限公司
美的威灵电机技术（上海）有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority claimed from CN202111148516.7A external-priority patent/CN113890218A/zh
Priority claimed from CN202122349761.6U external-priority patent/CN216056509U/zh
Application filed by 佛山市威灵洗涤电机制造有限公司, 美的威灵电机技术（上海）有限公司 filed Critical 佛山市威灵洗涤电机制造有限公司
Publication of WO2023045263A1 publication Critical patent/WO2023045263A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/16—Stator cores with slots for windings
    • 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
    • H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
    • 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

Definitions

  • the present application relates to the technical field of clothes treating devices, and in particular, relates to a stator core, a motor structure and a clothes treating device.
  • the performance of the motor inside it is an important factor that determines the use of the laundry treatment device.
  • the noise is generally due to the radial direction between the stator and the rotor.
  • the stator crown is usually cut arc treatment, but when the machined motor is wound, the slot fullness of the stator winding will decrease, which will affect the efficiency of the motor have a certain impact.
  • This application aims to solve at least one of the technical problems existing in the prior art or related art.
  • the embodiment of the first aspect of the present application provides a stator core.
  • the embodiment of the second aspect of the present application provides a motor structure.
  • the embodiment of the third aspect of the present application provides a clothes treatment device.
  • the embodiment of the first aspect of the present application provides a stator core, including: a plurality of stator punching pieces, and a plurality of stator punching pieces are stacked; each stator punching piece includes: a stator yoke and a plurality of stator punching pieces For the stator teeth on the stator yoke, a plurality of stator teeth are distributed around the axis of the stator core in the circumferential direction, and winding slots are formed between two adjacent stator teeth; among them, the slots of the winding slots of at least two stator punching pieces The mouth width varies.
  • the stator core is provided by axially stacking a plurality of stator punches, and each stator punch is provided with a stator yoke, stator teeth and winding slots.
  • the teeth are arranged on the stator yoke, and a winding slot is formed between two adjacent stator teeth, so that the stator winding can be wound on the winding slot, and a magnetic field can be generated on the rotor to realize the stator effect.
  • the slot widths of the winding slots are different, so that at least two types of stator punches with slot widths can , that is, under the joint action of the large notch and the small notch, the slot fullness rate is increased to reduce the noise during use when it is applied to the motor.
  • the definition of the notch width of the winding slot is the circumferential width between the tooth shoes of two adjacent stator teeth.
  • the air gap permeance will be optimized, which can significantly Reduce the electromagnetic radial force, but it will have a certain impact on the slot fullness of the stator winding on the entire winding slot. Therefore, this scheme uses a variety of stator punches with different slot widths on a stator core, which can take into account the noise. and slot full rate, effectively improving the product competitiveness of the motor.
  • the motor type applied to the stator core may be different, for example, it can be a bidirectional motor or a unidirectional motor rotating in a specified direction, so for different types of poles, the slots of the winding slots on the stator punches There are also differences in mouth shape.
  • stator core in the above solution provided by this application may also have the following additional technical features:
  • the stator punch includes: a first punch, the stator teeth of the first punch are symmetrical to the shoe, and the symmetry axis of the tooth shoe passes through the axis of the stator core.
  • the stator punching piece includes a first punching piece, wherein, generally, the stator tooth itself is roughly fan-shaped.
  • the first punching piece adopts a tooth shoe of a symmetrical stator tooth, and at the same time, the symmetry axis of the tooth shoe is limited.
  • the axis of the stator core, that is, the tooth shoe is symmetrical with respect to the center line of the winding slot, and the basic electromagnetic performance of the stator can be realized on the basis of the first punching sheet, and after the stacking of multiple first punching sheets , can realize winding operation.
  • it also includes: a second punching piece, the tooth shoes of the stator teeth of the second punching piece are symmetrical, and the symmetry axis of the tooth shoe passes through the axis of the stator core; wherein, the slot width of the first punching piece is larger than that of the second punching piece.
  • the slot width of the punch is larger than that of the second punching piece.
  • a second punching piece is also provided.
  • the stator teeth themselves are generally fan-shaped.
  • the second punching piece adopts a symmetrical stator tooth tooth. shoe, while restricting the axis of symmetry of the tooth shoe to pass through the axis of the stator core, that is, the tooth shoe of the second punch is symmetrical with respect to the center line of the winding slot, at this time, the first punch and the second punch Under the combined action of the multiple first punches and second punches, the winding operation can be realized.
  • the notch widths of the first punch and the second punch are different, so during use, the requirements for slot fullness and noise reduction will be greatly met.
  • the width of the notch of the second punch is relatively small, so as to optimize the air gap magnetic permeability under the action of the larger first punch.
  • the slot fullness of the winding is ensured by the action of the smaller second punch, so that the performance of the stator core is improved under the joint action of the two.
  • the number of the first punches is greater than the number of the second punches.
  • the air gap permeance can be optimized by limiting the number of the first punches to a large number, while the number of the second punches is small. Since the slot width of the second punches is small, the The insulating paper or the insulating frame acts as a limiter. It can be understood that the width of the notch of the second punch is smaller, the length of the tooth shoe is larger, and the part in contact with the insulating paper is the edge of the tooth shoe.
  • the stator punching piece also includes: a third punching piece, the tooth shoes of the stator teeth of the third punching piece are asymmetrical, and on the third punching piece, one end of the stator tooth in the circumferential direction and the axis of the stator punching piece
  • a first angle ⁇ 3 is formed between a connection line OA and the center line OC of the stator tooth
  • a second angle ⁇ 3 is formed between the second connection line OB between the other circumferential end of the stator tooth and the axis of the stator punch and the center line OC of the stator tooth.
  • the stator punching piece also includes a third punching piece.
  • its tooth shoe is asymmetrical.
  • the first angle of the tooth shoe is relatively large, and the second angle is small.
  • the first angle ⁇ 3 is formed between the first connecting line OA between the circumferential end of the stator tooth and the axis of the stator punch and the center line OC of the stator tooth
  • the second angle v3 is the circumferential direction of the stator tooth It is formed between the second line OB connecting the other end to the axis of the stator punch and the centerline OC of the stator teeth.
  • the notch width of the third punch is smaller than that of the first punch; the number of the third punch is greater than that of the first punch.
  • the stator punching sheet includes a first punching sheet, a second punching sheet and a third punching sheet, and the number of the third punching sheet is greater than that of the first punching sheet; or the number of the third punching sheet is larger than that of the second punching sheet quantity.
  • the motor by restricting the stator punching sheets to include three kinds of punching sheets, namely the first punching sheet, the second punching sheet and the third punching sheet, under the action of the three punching sheets, the motor can be realized to perform unidirectional Radial force density during rotation, so as to meet the requirements of noise reduction and slot fullness.
  • the number of the third punching pieces is greater than the number of the first punching pieces or the second punching pieces, so that the third punching pieces are used as a structure mainly to prevent the overflow of the winding and improve the slot fullness rate.
  • the stator punching piece also includes: a fourth punching piece, the tooth shoes of the stator teeth of the fourth punching piece are asymmetrical, and on the fourth punching piece, one end of the stator tooth in the circumferential direction is at the first axis of the stator punching piece.
  • a first angle ⁇ 4 is formed between a connecting line OA and the center line OC of the stator tooth
  • a second angle ⁇ 4 is formed between the second connecting line OB between the other circumferential end of the stator tooth and the axis of the stator punch and the center line OC of the stator tooth.
  • the stator punching piece also includes a fourth punching piece.
  • its tooth shoe is asymmetrical, the first angle of the tooth shoe is relatively small, and the second angle is relatively large.
  • An angle ⁇ 4 is formed between the first line OA between the circumferential end of the stator tooth and the axis of the stator punch and the center line OC of the stator tooth, and the second angle v4 is formed between the other circumferential end of the stator tooth and the stator It is formed between the second connecting line OB of the axis of the punching sheet and the centerline OC of the stator teeth.
  • the tooth shoe there are two pole shoes in the tooth shoe, one is the front pole shoe, that is, the part corresponding to ⁇ AOC, and the width of this part is small, and the other is the rear pole shoe, that is, the part corresponding to ⁇ BOC, and the width of this part is larger , so that the tooth shoe itself deviates from the center line of the winding groove.
  • the air gap permeance is optimized under the action of the first punching piece, and at the same time, the slot fullness of the winding is guaranteed under the action of the second punching piece with a smaller width.
  • the fourth punching piece of this scheme It is more suitable for unidirectional motors.
  • the rotation direction of the specific motor is counterclockwise, so that the width of the front pole shoe is larger, and the notch at the corresponding position is smaller, while the width of the rear pole shoe is smaller, and the notch at the corresponding position is smaller. larger.
  • the notch width of the fourth punch is smaller than the notch width of the first punch; wherein, the number of the fourth punch is greater than the number of the first punch.
  • the stator punching sheet includes a first punching sheet, a second punching sheet and a fourth punching sheet, and the number of the fourth punching sheet is greater than that of the first punching sheet; or the number of the fourth punching sheet is larger than that of the second punching sheet quantity.
  • the stator punching includes three kinds of punching, that is, the first punching, the second punching and the fourth punching. Under the action of the three punchings, the motor can be realized when the motor rotates in one direction. Radial force density, so as to meet the requirements of noise reduction and slot fullness.
  • the fourth punches are used as a structure to mainly prevent winding overflow and improve the slot fill rate.
  • the embodiment of the second aspect of the present application provides a motor structure, including: a rotor structure; the stator core as in the above-mentioned technical solution of the first aspect is arranged coaxially with the rotor structure, and the rotor structure can be relatively The stator core rotates in one direction or in two directions.
  • the motor structure provided by the embodiment of the second aspect of the present application, it includes a rotor structure and a stator core, wherein the motor structure is provided with the stator core in the technical solution of the first aspect above, so it has the advantages of any stator core above. effect, which will not be repeated here.
  • the motor structure includes the above-mentioned stator core, the noise of the motor structure during use can be reduced on the basis of increasing the slot fill rate.
  • the rotor structure is provided with a plurality of permanent magnet slots, and the plurality of permanent magnet slots are annularly arranged along the circumference of the rotor structure for insertion of permanent magnets so as to be rotated by the magnetic field after the stator is energized.
  • the embodiment of the third aspect of the present application provides a clothes treatment device, comprising: a casing; and the motor structure as in the above-mentioned technical solution of the second aspect is disposed in the casing.
  • the laundry treatment device includes a housing and a motor structure disposed in the housing.
  • the laundry treatment device is provided with the motor structure in the technical solution of the second aspect, so it has the advantages of the above motor structure. effect, which will not be repeated here.
  • FIG. 1 shows a schematic structural diagram of a first punching sheet according to an embodiment of the present application
  • Fig. 2 shows a schematic structural diagram of a second punching sheet according to an embodiment of the present application
  • FIG. 3 shows a schematic structural view of a third punch according to an embodiment of the present application
  • FIG. 4 shows a schematic structural view of a fourth punch according to an embodiment of the present application
  • Fig. 5 shows a schematic structural view of a stator core according to an embodiment of the present application
  • Fig. 6 shows a schematic structural view of a stator core according to an embodiment of the present application
  • Fig. 7 shows a schematic structural view of a stator core according to an embodiment of the present application.
  • Fig. 8 shows a schematic structural view of a stator core according to an embodiment of the present application
  • Fig. 9 shows a schematic structural diagram of a motor structure according to an embodiment of the present application.
  • Fig. 10 shows a schematic structural diagram of a clothes treatment device according to an embodiment of the present application.
  • Fig. 11 shows a schematic diagram of the coordinates of the notch width ratio of the first punch and the second punch and the electromagnetic radial force density according to an embodiment of the present application.
  • stator core 100: stator core; 102: stator punch; 1022: stator yoke; 1024: stator tooth; 1026: winding slot; 1042: first punch; 1044: second punch; 1046: third punch; 1048 : fourth punch; 1062: front pole piece; 1064: rear pole piece; 200: motor structure; 202: rotor structure; 204: permanent magnet slot; 300: clothes processing device; 302: shell.
  • a stator core 100 proposed in this embodiment is formed by stacking a plurality of stator punches 102 in the axial direction, and each stator punch 102 is provided with a stator yoke 1022, a stator Teeth 1024 and winding slots 1026.
  • the stator teeth 1024 are arranged on the stator yoke 1022, and a winding slot 1026 is formed between two adjacent stator teeth 1024, so that the stator winding can be wound on the winding slots 1026, and the rotor A magnetic field is generated for stator action.
  • the slot widths of the winding slots 1026 are different, so that at least two types of stator punches with slot widths can be used.
  • the noise generated by the motor during use is reduced, and the slot fullness rate can be improved at the same time.
  • the definition of the slot width of the winding slot 1026 is the circumferential width between the tooth shoes of two adjacent stator teeth 1024.
  • the air gap permeance will be optimized.
  • the electromagnetic radial force can be significantly reduced, but it will have a certain impact on the slot fullness of the stator winding on the entire winding slot 1026. Therefore, this solution uses a variety of stator punches with different slot widths on one stator core 100. 102, which can take into account both noise and slot fullness, effectively improving the product competitiveness of the motor.
  • the type of motor applied to the stator core 100 may be different, for example, it may be a bidirectional motor or a unidirectional motor rotating in a specified direction, so for different types of poles, the winding on the stator punch 102 There may also be differences in the notch shape of slot 1026 .
  • a stator core 100 proposed in this embodiment is formed by stacking a plurality of stator punches 102 in the axial direction, and each stator punch 102 is provided with a stator yoke 1022, a stator Teeth 1024 and winding slots 1026.
  • the stator teeth 1024 are arranged on the stator yoke 1022, and a winding slot 1026 is formed between two adjacent stator teeth 1024, so that the stator winding can be wound on the winding slots 1026, and the rotor A magnetic field is generated for stator action.
  • the slot widths of the winding slots 1026 are different, so that at least two types of stator punches with slot widths can be used.
  • the noise generated by the motor during use is reduced, and the slot fullness rate can be improved at the same time.
  • the definition of the slot width of the winding slot 1026 is the circumferential width between the tooth shoes of two adjacent stator teeth 1024, and when the size is large, the air gap permeance will be optimized, The electromagnetic radial force can be significantly reduced, but it will have a certain impact on the slot fullness of the stator winding on the entire winding slot 1026, so this solution uses a variety of stator punches with different slot widths on a stator core 100 102, which can take into account both noise and slot fullness, effectively improving the product competitiveness of the motor.
  • the type of motor applied to the stator core 100 may be different, for example, it may be a bidirectional motor or a unidirectional motor rotating in a specified direction, so for different types of poles, the winding on the stator punch 102 There may also be differences in the notch shape of slot 1026 .
  • the stator punching piece 102 mainly includes a first punching piece 1042 and a second punching piece 1044, wherein, generally, the stator teeth 1024 themselves are roughly fan-shaped, and this
  • both the first punching piece 1042 and the second punching piece 1044 adopt symmetrical stator teeth 1024 tooth shoes, and at the same time limit the symmetrical axis of the tooth shoes to pass through the axis of the stator core 100, that is, the two tooth shoes are relatively
  • the centerline of slot 1026 is symmetrical.
  • the notch width of the first punching piece 1042 is larger, the notch width of the second punching piece 1044 is smaller, so as to optimize the air gap magnetic permeability under the action of the larger first punching piece 1042 , under the function of the second punching piece 1044 with a smaller width, the slot fill ratio of the winding is ensured, so that the performance of the stator core 100 is improved under the joint function of the two.
  • the notch width of the first punching piece is w1
  • the angle ⁇ AOC of the first punching piece of the stator core is ⁇ 1
  • the angle ⁇ BOC of the first punching piece of the stator core is ⁇ 1
  • the angle ⁇ AOC of the second punching piece of the stator core is ⁇ 2
  • the angle ⁇ BOC of the second punching piece of the stator core is ⁇ 2
  • the notch width of the second punching piece of the stator core is w2.
  • the number of the first punches 1042 is large, which can optimize the air gap permeability, while the number of the second punches 1044 is small, because the width of the slot of the second punches 1044 is small, it can optimize the insulation.
  • the paper or the insulating frame acts as a limiter. It can be understood that the width of the notch of the second punch 1044 is smaller, the length of the tooth shoe is larger, and the part in contact with the insulating paper is the edge of the tooth shoe.
  • a stator core 100 proposed in this embodiment is formed by axially stacking a plurality of stator punches 102, and each stator punch 102 is provided with a stator yoke 1022, stator teeth 1024 and winding slots 1026, the stator teeth 1024 are arranged on the stator yoke 1022, and winding slots 1026 are formed between two adjacent stator teeth 1024, so that the stator windings are wound on the winding slots 1026, A magnetic field can be generated on the rotor for stator action.
  • the slot widths of the winding slots 1026 are different, so that at least two types of stator punches with slot widths can be used.
  • the noise generated by the motor during use is reduced, and the slot fullness rate can be improved at the same time.
  • the definition of the slot width of the winding slot 1026 is the circumferential width between the tooth shoes of two adjacent stator teeth 1024, and when the size is large, the air gap permeance will be optimized, The electromagnetic radial force can be significantly reduced, but it will have a certain impact on the slot fullness of the stator winding on the entire winding slot 1026, so this solution uses a variety of stator punches with different slot widths on a stator core 100 102, which can take into account both noise and slot fullness, effectively improving the product competitiveness of the motor.
  • the type of motor applied to the stator core 100 may be different, for example, it may be a bidirectional motor or a unidirectional motor rotating in a specified direction, so for different types of poles, the winding on the stator punch 102 There may also be differences in the notch shape of slot 1026 .
  • the stator punching piece 102 mainly includes a first punching piece 1042, a second punching piece 1044 and a third punching piece 1046, wherein generally the stator teeth 1024 themselves are roughly fan-shaped, and in this solution, the first punching piece 1042 and the third punching piece 1046
  • the second punching pieces 1044 all use symmetrical stator teeth 1024 tooth shoes, and at the same time limit the symmetrical axis of the tooth shoes to pass through the axis of the stator core 100, that is, the two tooth shoes are symmetrical with respect to the center line of the winding groove 1026 .
  • the third punching piece 1046 As shown in Fig. 3, its tooth shoe is not symmetrical, specifically, the first angle of the tooth shoe is relatively large, and the second angle is small, wherein the first angle ⁇ 3 is the stator tooth
  • the second angle v3 is formed between the other circumferential end of the stator tooth and the first line OA of the axis of the stator punch and the center line OC of the stator tooth. It is formed between the two connecting line OB and the centerline OC of the stator teeth.
  • the x effect of optimizing the air gap magnetic permeability can be realized, and at the same time, the effect of ensuring the slot fullness of the winding under the action of the third punching piece 1046,
  • the third punching piece 1046 of this solution it is more suitable for a one-way motor, and the rotation direction of the specific motor is counterclockwise, so that the width of the front pole piece 1062 is larger, and the notch at the corresponding position is smaller, while the rear pole piece
  • the shoe 1064 has a smaller width and a correspondingly larger notch.
  • the notch width of the third punching piece of the stator core is w3
  • the angle ⁇ AOC of the third punching piece of the stator core is ⁇ 3
  • the angle ⁇ BOC of the third punching piece of the stator core is ⁇ 3, and satisfy ⁇ 3> ⁇ 3, w1>w3>w2.
  • the notch width of the third punching piece 1046 is smaller, smaller than the notch width of the first punching piece 1042, so that the third punching piece can play a main role in limiting the insulating paper or the insulating frame, thereby preventing the overflow of the winding It plays a blocking role and improves the slot full rate.
  • the stator punching piece also includes a second punching piece 1044, which can jointly realize the radial force density of the motor when the motor is rotating in one direction under the action of the three kinds of punching pieces, so as to achieve both noise reduction requirements and slot fullness. rate demand.
  • the slot width of the third punch 1046 is between the slot widths of the second punch 1044 and the first punch 1042, without affecting the limiting effect of the second punch 1044 on the insulating paper or the insulating frame
  • the width of the notch can be smaller than that of the first punching piece 1042, so that together with the second punching piece 1044, it can prevent the overflow of the winding and improve the slot filling rate.
  • the number of the third punching pieces 1046 is greater than the number of the first punching pieces 1042 or the second punching pieces 1044, so that the third punching pieces 1046 are mainly used as a structure to prevent the overflow of the winding and improve the slot fullness.
  • a stator core 100 proposed in this embodiment is formed by axially stacking a plurality of stator punches 102 , and each stator punch 102 is A stator yoke 1022, a stator tooth 1024 and a winding slot 1026 are provided.
  • the stator tooth 1024 is arranged on the stator yoke 1022, and a winding slot 1026 is formed between two adjacent stator teeth 1024, so that the stator winding is wound on the winding wire.
  • a magnetic field can be generated on the rotor to realize the stator effect.
  • the slot widths of the winding slots 1026 are different, so that at least two types of stator punches with slot widths can be used.
  • the noise generated by the motor during use is reduced, and the slot fullness rate can be improved at the same time.
  • the definition of the slot width of the winding slot 1026 is the circumferential width between the tooth shoes of two adjacent stator teeth 1024, and when the size is large, the air gap permeance will be optimized, The electromagnetic radial force can be significantly reduced, but it will have a certain impact on the slot fullness of the stator winding on the entire winding slot 1026, so this solution uses a variety of stator punches with different slot widths on a stator core 100 102, which can take into account both noise and slot fullness, effectively improving the product competitiveness of the motor.
  • the type of motor applied to the stator core 100 may be different, for example, it may be a bidirectional motor or a unidirectional motor rotating in a specified direction, so for different types of poles, the winding on the stator punch 102 There may also be differences in the notch shape of slot 1026 .
  • the stator punching piece 102 mainly includes a first punching piece 1042 and a fourth punching piece 1048, wherein the stator teeth 1024 are generally fan-shaped, and the first punching piece 1042 adopts a symmetrical stator tooth 1024 in this solution.
  • the axis of symmetry of the tooth shoes is restricted to pass through the axis of the stator core 100 , that is, the two tooth shoes are symmetrical with respect to the center line of the winding slot 1026 .
  • the fourth punching piece 1048 As shown in Figure 4, its tooth shoes are not symmetrical, specifically, the first angle of the tooth shoe is relatively small, and the second angle is relatively large, wherein the first angle ⁇ 4 is the stator tooth
  • the second angle v4 is formed between the other circumferential end of the stator tooth and the first line OA of the axis of the stator punch and the center line OC of the stator tooth. It is formed between the two connecting line OB and the centerline OC of the stator teeth.
  • the tooth shoe there are two pole shoes in the tooth shoe, one is the front pole shoe, that is, the part corresponding to ⁇ AOC, and the width of this part is small, and the other is the rear pole shoe, that is, the part corresponding to ⁇ BOC, and the width of this part is larger , so that the tooth shoe itself deviates from the center line of the winding groove.
  • the air gap permeance is optimized under the action of the first punching piece 1042, and at the same time, the slot fullness of the winding is guaranteed under the action of the second punching piece 1044 with a smaller width.
  • the fourth punching piece of this solution In the case of 1048, it is more suitable for unidirectional motors.
  • the rotation direction of the specific motor is counterclockwise, so that the width of the front pole shoe is larger, and the notch at the corresponding position is smaller, while the width of the rear pole shoe is smaller, and the corresponding position The notch is larger.
  • stator punching includes three kinds of punching, that is, the first punching 1042, the second punching 1044 and the fourth punching 1048, and under the action of the three punchings, the motor can be unidirectionally rotated.
  • the radial force density at the same time can meet the requirements of noise reduction and slot fullness.
  • the notch width of the fourth punch of the stator core is w4
  • the angle of the fourth punch of the stator core ⁇ AOC is ⁇ 4
  • the angle of ⁇ BOC of the fourth punch of the stator core is ⁇ 4.
  • the slot width of the fourth punch 1048 is between the slot widths of the second punch 1044 and the first punch 1042, without affecting the limiting effect of the second punch 1044 on the insulating paper or the insulating frame,
  • the width of the notch can be smaller than that of the first punching piece 1042 , so that together with the second punching piece 1044 , it can prevent the overflow of the winding and improve the slot fullness rate.
  • the number of the fourth punching pieces 1048 is greater than the number of the first punching pieces 1042, so that the fourth punching pieces 1048 are mainly used as a structure to prevent the overflow of the winding and improve the slot fullness rate.
  • the stator punching piece 102 includes a first punching piece 1042 and a second punching piece 1044, the second punching piece 1044 is at both axial ends and the middle, and the number of the first punching piece 1042 is Larger than the second punch 1044.
  • the stator stamping 102 of this specific embodiment is applied to a bidirectional rotating electrical machine.
  • the stator punching piece 102 includes a second punching piece 1044 and a third punching piece 1046, the second punching piece 1044 is at both ends and the middle of the In the middle part, the number of the third punches 1046 is greater than that of the second punches 1044 .
  • the stator stamping 102 of this specific embodiment is applied to a unidirectional rotating motor.
  • the stator punching piece 102 includes a second punching piece 1044 and a fourth punching piece 1048. In the middle, the fourth punches 1048 are larger in number than the second punches 1044 .
  • the stator stamping 102 of this specific embodiment is applied to a unidirectional rotating motor.
  • the stator punching piece 102 includes a first punching piece 1042 , a second punching piece 1044 , a third punching piece 1046 and a fourth punching piece 1048 , and the second punching piece 1044 is At both axial ends, the third punching piece 1046 and the fourth punching piece 1048 are in the middle, and the number of the first punching piece 1042 is greater than that of the second punching piece 1044 , the third punching piece 1046 , and the fourth punching piece 1048 .
  • the stator stamping 102 of this specific embodiment is applied to a bidirectional rotating electrical machine.
  • a motor structure 200 proposed in this embodiment includes a rotor structure 202 and a stator core 100, and the rotor structure 202 can rotate relative to the stator core 100, wherein the motor structure 200 is provided with any of the above-mentioned
  • the stator core 100 of the embodiment therefore has the beneficial effects of any of the above embodiments, which will not be repeated here.
  • the motor structure 200 includes the above-mentioned stator core 100 , the noise of the motor structure 200 during use can be reduced on the basis of increasing the slot fill rate.
  • the rotor structure is provided with a plurality of permanent magnet slots 204, and the plurality of permanent magnet slots 204 are annularly arranged along the circumference of the rotor structure for insertion of permanent magnets so that the stator is driven by a magnetic field to rotate after energization .
  • a clothes processing device 300 proposed in this embodiment includes a housing 302 and a motor structure 200 disposed in the housing 302 , and the housing 302 is provided with the motor structure 200 in the fifth embodiment above. Therefore, it has the beneficial effects of the motor structure 200 described above, which will not be repeated here.
  • stator punches with large slots there are both stator punches with large slots and stator punches with small slots, so that Under the action of at least two types of stator punches with slot widths, the noise generated by the motor during use can be reduced, and the slot fullness rate can be improved at the same time.
  • connection can be fixed connection, detachable connection, or integral connection; “connection” can be directly or indirectly through an intermediary.

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Abstract

本申请的实施例提供了一种定子铁芯、电机结构和衣物处理装置，其中，定子铁芯包括：多个定子冲片，多个定子冲片层叠设置；每个定子冲片包括：定子轭和多个设于定子轭上的定子齿，多个定子齿绕定子铁芯的轴线周向分布，相邻的两个定子齿之间形成绕线槽；其中，至少两个定子冲片的绕线槽的槽口宽度不同。本申请的技术方案中，在组成定子铁芯的多个定子冲片中，既存在大槽口的定子冲片，又存在小槽口的定子冲片，从而可在至少两类槽口宽度的定子冲片的作用下，降低了电机在使用过程中产生的噪音，同时又可提高槽满率。

Description

定子铁芯、电机结构和衣物处理装置
本申请要求于2021年09月27日提交中国国家知识产权局、申请号为“202111148516.7”、申请名称为“定子铁芯、电机结构和衣物处理装置”和于2021年09月27日提交中国国家知识产权局、申请号为“202122349761.6”、申请名称为“定子铁芯、电机结构和衣物处理装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及衣物处理装置技术领域，具体而言，涉及一种定子铁芯、一种电机结构和一种衣物处理装置。
背景技术
对于衣物处理装置而言，其内部设置的电机的性能是决定衣物处理装置使用优劣的重要因素，目前，对于电机而言，在运行过程中，噪音一般是由于定子和转子之间的径向力作用从而产生，现有技术中，为了降低噪音，通常会将对定子齿冠削弧处理，但加工后的电机在进行绕线时，定子绕组的槽满率会下降，从而会对电机效率产生一定的影响。
发明内容
本申请旨在至少解决现有技术或相关技术中存在的技术问题之一。
有鉴于此，本申请第一方面的实施例提供了一种定子铁芯。
本申请第二方面的实施例提供了一种电机结构。
本申请第三方面的实施例提供了一种衣物处理装置。
为了实现上述目的，本申请第一方面的实施例提供了一种定子铁芯，包括：多个定子冲片，多个定子冲片层叠设置；每个定子冲片包括：定子轭和多个设于定子轭上的定子齿，多个定子齿绕定子铁芯的轴线周向分布，相邻的两个定子齿之间形成绕线槽；其中，至少两个定子冲片的绕线槽的槽口宽度不同。
根据本申请第一方面的实施例提供的定子铁芯，是由多个定子冲片轴向层叠设置而成的，在每个定子冲片上均设置有定子轭、定子齿以及绕线槽，定子齿设置在定子轭上，相邻的两个定子齿之间形成有绕线槽，以便于定子绕组绕在绕线槽上，可对转子产生磁场，以实现定子作用。需要特别强调的是，本方案中，在组成定子铁芯的多个定子冲片中，绕线槽的槽口宽度各有不同，从而可在至少两类槽口宽度的定子冲片的作用下，即大槽口和小槽口的共同作用下，提高槽满率，以降低在应用至电机上时，使用过程中的噪音。
可以理解，对于绕线槽的槽口宽度的定义，即为相邻两个定子齿的齿靴之间的周向宽度，在该尺寸较大时，会将气隙磁导进行优化，可显著降低电磁径向力，但会对整个绕线槽上的定子绕组的槽满率产生一定的影响，故而本方案在一个定子铁芯上采用多种槽口宽度不同的定子冲片，可兼顾噪音和槽满率两个方面，有效提高电机的产品竞争力。
进一步地，由于定子铁芯所应用的电机类别可能有所差异，例如可以为双向电机，也可以为指定方向转动的单向电机，故而对于不同类型的电极，定子冲片上的绕线槽的槽口形状也会存在差异。
另外，本申请提供的上述方案中的定子铁芯还可以具有如下附加技术特征：
上述技术方案中，定子冲片包括：第一冲片，第一冲片的定子齿的齿靴对称，齿靴的对称轴过定子铁芯的轴线。
在该技术方案中，定子冲片包括第一冲片，其中，一般定子齿自身大致呈扇形，本方案中第一冲片采用对称状的定子齿的齿靴，同时限制齿靴的对称轴过定子铁芯的轴线，也即齿靴相对于绕线槽的中心线是对称的，可在第一冲片的基础上实现定子的基本电磁性能，以及在多个第一冲片的层叠设置后，可实现绕线操作。
上述技术方案中，还包括：第二冲片，第二冲片的定子齿的齿靴对称，齿靴的对称轴过定子铁芯的轴线；其中，第一冲片的槽口宽度大于第二冲片的槽口宽度。
在该技术方案中，在设置第一冲片的基础上，还设置有第二冲片，同 样地，一般定子齿自身大致呈扇形，本方案中第二冲片采用对称状的定子齿的齿靴，同时限制齿靴的对称轴过定子铁芯的轴线，也即第二冲片的齿靴相对于绕线槽的中心线是对称的，此时可在第一冲片和第二冲片的共同作用下，在多个第一冲片和第二冲片层叠设置后，可实现绕线操作。需要强调的是，由于在本方案中，第一冲片和第二冲片的槽口宽度不同，故而在使用过程中，会极大的满足槽满率需求和降噪需求。
在此基础上，通过限定第一冲片的槽口宽度较大，第二冲片的槽口宽度较小，以便于在较大的第一冲片的作用下优化气隙磁导，在宽度较小的第二冲片的作用下保证绕组的槽满率，从而在二者共同的作用下提高定子铁芯的性能。
上述技术方案中，第一冲片的数量大于第二冲片的数量。
在该技术方案中，通过限制第一冲片的数量较多，可对气隙磁导进行优化，而第二冲片的数量较少，由于第二冲片的槽口宽度较小，可对绝缘纸或绝缘框架起到限位的作用，可以理解，第二冲片的槽口宽度更小，齿靴的长度越大，而与绝缘纸相接触的部分即为齿靴的边缘。
上述技术方案中，定子冲片还包括：第三冲片，第三冲片的定子齿的齿靴不对称，且在第三冲片上，定子齿的周向一端与定子冲片的轴线的第一连线OA与定子齿的中心线OC之间形成第一角度μ3，定子齿的周向另一端与定子冲片的轴线的第二连线OB与定子齿的中心线OC之间形成第二角度v3，第一角度μ3＞第二角度v3。
在该技术方案中，定子冲片还包括有第三冲片，对于第三冲片而言，其齿靴并不对称，具体而言，齿靴的第一角度较大，第二角度较小，其中，第一角度μ3为定子齿的周向一端与定子冲片的轴线的第一连线OA与定子齿的中心线OC之间形成的，而第二角度v3则是定子齿的周向另一端与定子冲片的轴线的第二连线OB与定子齿的中心线OC之间形成的。换言之，齿靴存在两个极靴，其一为前极靴，即∠AOC对应的部分，该部分宽度较大，其二为后极靴，即∠BOC对应的部分，该部分的宽度较小，使得齿靴自身偏离于绕线槽的中心线。本方案中，第一冲片和第三冲片的共同作用下，可实现优化气隙磁导的效果，同时第三冲片的作用下保证绕组的槽满 率的效果，在本方案的第三冲片的情况下，更适用于单向电机，具体电机的旋转方向为逆时针，使得前极靴的宽度较大，其对应位置的槽口较小，而后极靴的宽度较小，其对应位置的槽口较大。
上述技术方案中，第三冲片的槽口宽度小于第一冲片的槽口宽度；第三冲片的数量大于第一冲片的数量。
在该技术方案中，通过限定第三冲片的槽口宽度较小，小于第一冲片的槽口宽度，可使得第三冲片对绝缘纸或绝缘框架起到主要的限位作用，从而对绕组的外溢起到阻止作用，提高槽满率。上述技术方案中，定子冲片包括第一冲片、第二冲片和第三冲片，第三冲片的数量大于第一冲片的数量；或第三冲片的数量大于第二冲片的数量。
在该技术方案中，通过限制定子冲片包括有三种冲片，即第一冲片、第二冲片和第三冲片，可在三种冲片的作用下，共同实现电机在进行单向旋转时的径向力密度，从而实现可兼顾降噪需求和槽满率需求。
需要说明的是，第三冲片的数量大于第一冲片或第二冲片的数量，使得第三冲片作为主要阻止绕组外溢的结构，提高槽满率。
上述技术方案中，定子冲片还包括：第四冲片，第四冲片的定子齿的齿靴不对称，且在第四冲片上，定子齿的周向一端与定子冲片的轴线的第一连线OA与定子齿的中心线OC之间形成第一角度μ4，定子齿的周向另一端与定子冲片的轴线的第二连线OB与定子齿的中心线OC之间形成第二角度v4，第一角度μ4＜第二角度v4。
在该技术方案中，定子冲片还包括有第四冲片，对于第四冲片而言，其齿靴并不对称，齿靴的第一角度较小，第二角度较大，其中，第一角度μ4为定子齿的周向一端与定子冲片的轴线的第一连线OA与定子齿的中心线OC之间形成的，而第二角度v4则是定子齿的周向另一端与定子冲片的轴线的第二连线OB与定子齿的中心线OC之间形成的。换言之，齿靴存在两个极靴，其一为前极靴，即∠AOC对应的部分，该部分宽度较小，其二为后极靴，即∠BOC对应的部分，该部分的宽度较大，使得齿靴自身偏离于绕线槽的中心线。本方案中，在第一冲片的作用下优化气隙磁导，同时在宽度较小的第二冲片的作用下保证绕组的槽满率，此外，在本方案的 第四冲片的情况下，更适用于单向电机，具体电机的旋转方向为逆时针，使得前极靴的宽度较大，其对应位置的槽口较小，而后极靴的宽度较小，其对应位置的槽口较大。
上述技术方案中，第四冲片的槽口宽度小于第一冲片的槽口宽度；其中，第四冲片的数量大于第一冲片的数量。
在该技术方案中，通过限定第四冲片的槽口宽度较小，小于第一冲片的槽口宽度，可使得第四冲片对绝缘纸或绝缘框架起到主要的限位作用，从而对绕组的外溢起到阻止作用，提高槽满率。上述技术方案中，定子冲片包括第一冲片、第二冲片和第四冲片，第四冲片的数量大于第一冲片的数量；或第四冲片的数量大于第二冲片的数量。
在该技术方案中，定子冲片包括有三种冲片，即第一冲片、第二冲片和第四冲片，可在三种冲片的作用下，共同实现电机在进行单向旋转时的径向力密度，从而实现可兼顾降噪需求和槽满率需求。
需要说明的是，通过限制第四冲片的数量大于第一冲片或第二冲片的数量，使得第四冲片作为主要阻止绕组外溢的结构，提高槽满率。
本申请第二方面的实施例提供了一种电机结构，包括：转子结构；如上述第一方面技术方案中的定子铁芯，与所述转子结构同轴设置，且所述转子结构能够相对于所述定子铁芯单向或双向转动。
根据本申请第二方面实施例提供的电机结构，包括转子结构和定子铁芯，其中，电机结构内设有上述第一方面技术方案中的定子铁芯，故而具有上述任一定子铁芯的有益效果，在此不再赘述。
需要强调的是，由于电机结构包括上述定子铁芯，可在提高槽满率的基础上，降低电机结构在使用过程中的噪音。
更进一步地，转子结构上设有多个永磁体槽，多个永磁体槽沿所述转子结构的周向环形设置，以供永磁体插入，以便于在定子通电后受磁场驱动发生旋转。
本申请第三方面的实施例提供了一种衣物处理装置，包括：壳体；如上述第二方面技术方案中的电机结构，设于壳体内。
根据本申请第三方面实施例提供的衣物处理装置，包括壳体以及设于 壳体内的电机结构，衣物处理装置内设有上述第二方面技术方案中的电机结构，故而具有上述电机结构的有益效果，在此不再赘述。
本申请的附加方面和优点将在下面的描述部分中变得明显，或通过本申请的实践了解到。
附图说明
图1示出了根据本申请的一个实施例的第一冲片的结构示意图；
图2示出了根据本申请的一个实施例的第二冲片的结构示意图；
图3示出了根据本申请的一个实施例的第三冲片的结构示意图；
图4示出了根据本申请的一个实施例的第四冲片的结构示意图；
图5示出了根据本申请的一个实施例的定子铁芯的结构示意图；
图6示出了根据本申请的一个实施例的定子铁芯的结构示意图；
图7示出了根据本申请的一个实施例的定子铁芯的结构示意图；
图8示出了根据本申请的一个实施例的定子铁芯的结构示意图；
图9示出了根据本申请的一个实施例的电机结构的结构示意图；
图10示出了根据本申请的一个实施例的衣物处理装置的结构示意图；
图11示出了根据本申请的一个实施例的第一冲片和第二冲片的槽口宽度比值与电磁径向力密度的坐标示意图。
其中，图1至图11中附图标记与部件名称之间的对应关系为：
100：定子铁芯；102：定子冲片；1022：定子轭；1024：定子齿；1026：绕线槽；1042：第一冲片；1044：第二冲片；1046：第三冲片；1048：第四冲片；1062：前极靴；1064：后极靴；200：电机结构；202：转子结构；204：永磁体槽；300：衣物处理装置；302：壳体。
具体实施方式
为了能够更清楚地理解本申请的实施例的上述目的、特征和优点，下面结合附图和具体实施方式对本申请的实施例进行进一步的详细描述。需要说明的是，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本申请，但是，本申请的实施例还可以采用其他不同于在此描述的其他方式来实施，因此，本申请的保护范围并不限于下面公开的具体实施例的限制。
下面参照图1至图11描述根据本申请的一些实施例。
实施例一
如图1所示，本实施例提出的一种定子铁芯100，是由多个定子冲片102轴向层叠设置而成的，在每个定子冲片102上均设置有定子轭1022、定子齿1024以及绕线槽1026，定子齿1024设置在定子轭1022上，相邻的两个定子齿1024之间形成有绕线槽1026，以便于定子绕组绕在绕线槽1026上，可对转子产生磁场，以实现定子作用。需要特别强调的是，本方案中，在组成定子铁芯100的多个定子冲片102中，绕线槽1026的槽口宽度各有不同，从而可在至少两类槽口宽度的定子冲片102的作用下，即大槽口和小槽口的共同作用下，既存在大槽口的定子冲片，又存在小槽口的定子冲片，从而可在至少两类槽口宽度的定子冲片的作用下，降低了电机在使用过程中产生的噪音，同时又可提高槽满率。
可以理解，对于绕线槽1026的槽口宽度的定义，即为相邻两个定子齿1024的齿靴之间的周向宽度，在该尺寸较大时，会将气隙磁导进行优化，可显著降低电磁径向力，但会对整个绕线槽1026上的定子绕组的槽满率产生一定的影响，故而本方案在一个定子铁芯100上采用多种槽口宽度不同的定子冲片102，可兼顾噪音和槽满率两个方面，有效提高电机的产品竞争力。
进一步地，由于定子铁芯100所应用的电机类别可能有所差异，例如可以为双向电机，也可以为指定方向转动的单向电机，故而对于不同类型的电极，定子冲片102上的绕线槽1026的槽口形状也会存在差异。
实施例二
如图1所示，本实施例提出的一种定子铁芯100，是由多个定子冲片102轴向层叠设置而成的，在每个定子冲片102上均设置有定子轭1022、定子齿1024以及绕线槽1026，定子齿1024设置在定子轭1022上，相邻的两个定子齿1024之间形成有绕线槽1026，以便于定子绕组绕在绕线槽 1026上，可对转子产生磁场，以实现定子作用。需要特别强调的是，本方案中，在组成定子铁芯100的多个定子冲片102中，绕线槽1026的槽口宽度各有不同，从而可在至少两类槽口宽度的定子冲片102的作用下，即大槽口和小槽口的共同作用下，既存在大槽口的定子冲片，又存在小槽口的定子冲片，从而可在至少两类槽口宽度的定子冲片的作用下，降低了电机在使用过程中产生的噪音，同时又可提高槽满率。
可以理解，对于绕线槽1026的槽口宽度的定义，即为相邻两个定子齿1024的齿靴之间的周向宽度，在该尺寸较大时，会将气隙磁导进行优化，可显著降低电磁径向力，但会对整个绕线槽1026上的定子绕组的槽满率产生一定的影响，故而本方案在一个定子铁芯100上采用多种槽口宽度不同的定子冲片102，可兼顾噪音和槽满率两个方面，有效提高电机的产品竞争力。
进一步地，由于定子铁芯100所应用的电机类别可能有所差异，例如可以为双向电机，也可以为指定方向转动的单向电机，故而对于不同类型的电极，定子冲片102上的绕线槽1026的槽口形状也会存在差异。
在一个具体的实施例中，进一步地，如图1和图2所示，定子冲片102主要包括第一冲片1042和第二冲片1044，其中，一般定子齿1024自身大致呈扇形，本方案中第一冲片1042和第二冲片1044均采用对称状的定子齿1024的齿靴，同时限制齿靴的对称轴过定子铁芯100的轴线，也即两个齿靴相对于绕线槽1026的中心线是对称的。
在此基础上，通过限定第一冲片1042的槽口宽度较大，第二冲片1044的槽口宽度较小，以便于在较大的第一冲片1042的作用下优化气隙磁导，在宽度较小的第二冲片1044的作用下保证绕组的槽满率，从而在二者共同的作用下提高定子铁芯100的性能。
其中，如图1所示，第一冲片的槽口宽度为w1，定子铁芯的第一冲片∠AOC角度为μ1，定子铁芯的第一冲片∠BOC角度ν1，如图2所示，定子铁芯的第二冲片∠AOC角度为μ2，定子铁芯的第二冲片∠BOC角度为ν2，定子铁芯的第二冲片的槽口宽度为w2。其中，w1>w2，μ1＝ν1，μ2＝ν2。
更进一步地，第一冲片1042的数量较多，可对气隙磁导进行优化，而 第二冲片1044的数量较少，由于第二冲片1044的槽口宽度较小，可对绝缘纸或绝缘框架起到限位的作用，可以理解，第二冲片1044的槽口宽度更小，齿靴的长度越大，而与绝缘纸相接触的部分即为齿靴的边缘。
实施例三
如图4和图5所示，本实施例提出的一种定子铁芯100，是由多个定子冲片102轴向层叠设置而成的，在每个定子冲片102上均设置有定子轭1022、定子齿1024以及绕线槽1026，定子齿1024设置在定子轭1022上，相邻的两个定子齿1024之间形成有绕线槽1026，以便于定子绕组绕在绕线槽1026上，可对转子产生磁场，以实现定子作用。需要特别强调的是，本方案中，在组成定子铁芯100的多个定子冲片102中，绕线槽1026的槽口宽度各有不同，从而可在至少两类槽口宽度的定子冲片102的作用下，即大槽口和小槽口的共同作用下，既存在大槽口的定子冲片，又存在小槽口的定子冲片，从而可在至少两类槽口宽度的定子冲片的作用下，降低了电机在使用过程中产生的噪音，同时又可提高槽满率。
可以理解，对于绕线槽1026的槽口宽度的定义，即为相邻两个定子齿1024的齿靴之间的周向宽度，在该尺寸较大时，会将气隙磁导进行优化，可显著降低电磁径向力，但会对整个绕线槽1026上的定子绕组的槽满率产生一定的影响，故而本方案在一个定子铁芯100上采用多种槽口宽度不同的定子冲片102，可兼顾噪音和槽满率两个方面，有效提高电机的产品竞争力。
进一步地，由于定子铁芯100所应用的电机类别可能有所差异，例如可以为双向电机，也可以为指定方向转动的单向电机，故而对于不同类型的电极，定子冲片102上的绕线槽1026的槽口形状也会存在差异。
在本实施例中，定子冲片102主要包括第一冲片1042、第二冲片1044和第三冲片1046，其中，一般定子齿1024自身大致呈扇形，本方案中第一冲片1042和第二冲片1044均采用对称状的定子齿1024的齿靴，同时限制齿靴的对称轴过定子铁芯100的轴线，也即两个齿靴相对于绕线槽1026的中心线是对称的。
对于第三冲片1046而言，如图3所示，其齿靴并不对称，具体而言， 齿靴的第一角度较大，第二角度较小，其中，第一角度μ3为定子齿的周向一端与定子冲片的轴线的第一连线OA与定子齿的中心线OC之间形成的，而第二角度v3则是定子齿的周向另一端与定子冲片的轴线的第二连线OB与定子齿的中心线OC之间形成的。换言之，齿靴存在两个极靴，其一为前极靴1062，即∠AOC对应的部分，该部分的宽度较大，其二为后极靴1064，即∠BOC对应的部分，该部分的宽度较小，使得齿靴自身偏离于绕线槽1026的中心线。本方案中，第一冲片1042和第三冲片1046的共同作用下，可实现优化气隙磁导的x效果，同时在第三冲片1046的作用下保证绕组的槽满率的效果，在本方案的第三冲片1046的情况下，更适用于单向电机，具体电机的旋转方向为逆时针，使得前极靴1062的宽度较大，其对应位置的槽口较小，而后极靴1064的宽度较小，其对应位置的槽口较大。
具体地，如图3所示，定子铁芯的第三冲片的槽口宽度为w3，定子铁芯的第三冲片∠AOC角度为μ3，定子铁芯的第三冲片∠BOC角度为ν3，且满足μ3>ν3，w1>w3>w2。
其中，第三冲片1046的槽口宽度较小，小于第一冲片1042的槽口宽度，可使得第三冲片对绝缘纸或绝缘框架起到主要的限位作用，从而对绕组的外溢起到阻止作用，提高槽满率。
更进一步地，定子冲片还包括第二冲片1044，可在三种冲片的作用下，共同实现电机在进行单向旋转时的径向力密度，从而实现可兼顾降噪需求和槽满率需求。其中，第三冲片1046的槽口宽度在第二冲片1044和第一冲片1042的槽口宽度之间，在不影响第二冲片1044对绝缘纸或绝缘框架的限位作用的情况下，可其槽口宽度小于第一冲片1042的槽口宽度，从而与第二冲片1044一同对绕组的外溢起到阻止作用，提高槽满率。
第三冲片1046的数量大于第一冲片1042或第二冲片1044的数量，使得第三冲片1046作为主要阻止绕组外溢的结构，提高槽满率。
实施例四
如图1所示，本实施例提出的一种本实施例提出的一种定子铁芯100，是由多个定子冲片102轴向层叠设置而成的，在每个定子冲片102上均设置有定子轭1022、定子齿1024以及绕线槽1026，定子齿1024设置在定子 轭1022上，相邻的两个定子齿1024之间形成有绕线槽1026，以便于定子绕组绕在绕线槽1026上，可对转子产生磁场，以实现定子作用。需要特别强调的是，本方案中，在组成定子铁芯100的多个定子冲片102中，绕线槽1026的槽口宽度各有不同，从而可在至少两类槽口宽度的定子冲片102的作用下，即大槽口和小槽口的共同作用下，既存在大槽口的定子冲片，又存在小槽口的定子冲片，从而可在至少两类槽口宽度的定子冲片的作用下，降低了电机在使用过程中产生的噪音，同时又可提高槽满率。
可以理解，对于绕线槽1026的槽口宽度的定义，即为相邻两个定子齿1024的齿靴之间的周向宽度，在该尺寸较大时，会将气隙磁导进行优化，可显著降低电磁径向力，但会对整个绕线槽1026上的定子绕组的槽满率产生一定的影响，故而本方案在一个定子铁芯100上采用多种槽口宽度不同的定子冲片102，可兼顾噪音和槽满率两个方面，有效提高电机的产品竞争力。
进一步地，由于定子铁芯100所应用的电机类别可能有所差异，例如可以为双向电机，也可以为指定方向转动的单向电机，故而对于不同类型的电极，定子冲片102上的绕线槽1026的槽口形状也会存在差异。
在本实施例中，定子冲片102主要包括第一冲片1042和第四冲片1048，其中，一般定子齿1024自身大致呈扇形，本方案中第一冲片1042采用对称状的定子齿1024的齿靴，同时限制齿靴的对称轴过定子铁芯100的轴线，也即两个齿靴相对于绕线槽1026的中心线是对称的。
对于第四冲片1048而言，如图4所示，其齿靴并不对称，具体而言，齿靴的第一角度较小，第二角度较大，其中，第一角度μ4为定子齿的周向一端与定子冲片的轴线的第一连线OA与定子齿的中心线OC之间形成的，而第二角度v4则是定子齿的周向另一端与定子冲片的轴线的第二连线OB与定子齿的中心线OC之间形成的。换言之，齿靴存在两个极靴，其一为前极靴，即∠AOC对应的部分，该部分宽度较小，其二为后极靴，即∠BOC对应的部分，该部分的宽度较大，使得齿靴自身偏离于绕线槽的中心线。本方案中，在第一冲片1042的作用下优化气隙磁导，同时在宽度较小的第二冲片1044的作用下保证绕组的槽满率，此外，在本方案的第四冲片1048 的情况下，更适用于单向电机，具体电机的旋转方向为逆时针，使得前极靴的宽度较大，其对应位置的槽口较小，而后极靴的宽度较小，其对应位置的槽口较大。
更进一步地，定子冲片包括有三种冲片，即第一冲片1042、第二冲片1044和第四冲片1048，可在三种冲片的作用下，共同实现电机在进行单向旋转时的径向力密度，从而实现可兼顾降噪需求和槽满率需求。
具体如图4所示，定子铁芯的第四冲片的槽口宽度为w4，定子铁芯的第四冲片∠AOC角度为μ4，定子铁芯的第四冲片∠BOC角度为ν4，且满足μ4<ν4，w1>w4>w2。
第四冲片1048的槽口宽度在第二冲片1044和第一冲片1042的槽口宽度之间，在不影响第二冲片1044对绝缘纸或绝缘框架的限位作用的情况下，可其槽口宽度小于第一冲片1042的槽口宽度，从而与第二冲片1044一同对绕组的外溢起到阻止作用，提高槽满率。
第四冲片1048的数量大于第一冲片1042的数量，使得第四冲片1048作为主要阻止绕组外溢的结构，提高槽满率。
需要说明的是，通过限制第四冲片1048的数量大于第一冲片1042或第二冲片1044的数量，使得第四冲片1048作为主要阻止绕组外溢的结构，提高槽满率。在一个具体的实施例中，如图5所示，定子冲片102包括第一冲片1042和第二冲片1044，第二冲片1044在轴向两端和中部，第一冲片1042数量大于第二冲片1044。本具体实施例的定子冲片102应用于双向旋转电机。
其中，对第一冲片1042的槽口宽度w1和第二冲片1044的槽口宽度w2之间的比值进行径向力密度仿真的结果如图11所示，可看出，随着比值的增大，电磁径向力密度会随之下降，可满足使用过程中的降噪需求。
在一个具体的实施例中，如图7所示，定子冲片102包括第二冲片1044和第三冲片1046，第二冲片1044在轴向两端和中部，第三冲片1046在中部，第三冲片1046数量大于第二冲片1044。本具体实施例的定子冲片102应用于单向旋转电机。
在另一个具体的实施例中，如图8所示，定子冲片102包括第二冲片 1044和第四冲片1048，第二冲片1044在轴向两端和中部，第四冲片1048在中部，第四冲片1048数量大于第二冲片1044。本具体实施例的定子冲片102应用于单向旋转电机。
在另一个具体的实施例中，如图6所示，定子冲片102包括第一冲片1042、第二冲片1044、第三冲片1046和第四冲片1048，第二冲片1044在轴向两端，第三冲片1046和第四冲片1048在中部，第一冲片1042数量大于第二冲片1044、第三冲片1046、第四冲片1048。本具体实施例的定子冲片102应用于双向旋转电机。
实施例五
如图9所示，本实施例提出的一种电机结构200，包括转子结构202和定子铁芯100，转子结构202可相对于定子铁芯100转动，其中，电机结构200内设有上述任一实施例的定子铁芯100，故而具有上述任一实施例的有益效果，在此不再赘述。
需要强调的是，由于电机结构200包括上述定子铁芯100，可在提高槽满率的基础上，降低电机结构200在使用过程中的噪音。
更进一步地，转子结构上设有多个永磁体槽204，多个永磁体槽204沿所述转子结构的周向环形设置，以供永磁体插入，以便于在定子通电后受磁场驱动发生旋转。
实施例六
如图10所示，本实施例提出的一种衣物处理装置300，包括壳体302以及设于壳体302内的电机结构200，壳体302内设有上述实施例五中的电机结构200，故而具有上述电机结构200的有益效果，在此不再赘述。
根据本申请提供的定子铁芯、电机结构和衣物处理装置，在组成定子铁芯的多个定子冲片中，既存在大槽口的定子冲片，又存在小槽口的定子冲片，从而可在至少两类槽口宽度的定子冲片的作用下，降低了电机在使用过程中产生的噪音，同时又可提高槽满率。
在本申请中，术语“第一”、“第二”、“第三”仅用于描述的目的，而不能理解为指示或暗示相对重要性；术语“多个”则指两个或两个以上，除非另有明确的限定。术语“安装”、“相连”、“连接”、“固定”等术语均应做广义理 解，例如，“连接”可以是固定连接，也可以是可拆卸连接，或一体地连接；“相连”可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
本申请的描述中，需要理解的是，术语“上”、“下”、“左”、“右”、“前”、“后”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或单元必须具有特定的方向、以特定的方位构造和操作，因此，不能理解为对本申请的限制。
在本说明书的描述中，术语“一个实施例”、“一些实施例”、“具体实施例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或实例。而且，描述的具体特征、结构、材料或特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (15)

  1. 一种定子铁芯，其中，包括：
    多个定子冲片，多个所述定子冲片层叠设置；
    每个所述定子冲片包括：定子轭和多个设于所述定子轭上的定子齿，多个所述定子齿绕所述定子铁芯的轴线周向分布，相邻的两个所述定子齿之间形成绕线槽；
    其中，至少两个所述定子冲片的绕线槽的槽口宽度不同。
  2. 根据权利要求1所述的定子铁芯，其中，所述定子冲片包括：
    第一冲片，所述第一冲片的所述定子齿的齿靴对称，所述齿靴的对称轴过所述定子铁芯的轴线。
  3. 根据权利要求2所述的定子铁芯，其中，还包括：
    第二冲片，所述第二冲片的所述定子齿的齿靴对称，所述齿靴的对称轴过所述定子铁芯的轴线；
    其中，所述第一冲片的槽口宽度大于所述第二冲片的槽口宽度。
  4. 根据权利要求3所述的定子铁芯，其中，所述第一冲片的数量大于所述第二冲片的数量。
  5. 根据权利要求2或3所述的定子铁芯，其中，所述定子冲片还包括：
    第三冲片，所述第三冲片的所述定子齿的齿靴不对称，且在所述第三冲片上，所述定子齿的周向一端与所述定子冲片的轴线的第一连线OA与所述定子齿的中心线OC之间形成第一角度μ3，所述定子齿的周向另一端与所述定子冲片的轴线的第二连线OB与所述定子齿的中心线OC之间形成第二角度v3，所述第一角度μ3＞所述第二角度v3。
  6. 根据权利要求5所述的定子铁芯，其中，所述第三冲片的槽口宽度小于所述第一冲片的槽口宽度；
    其中，所述第三冲片的数量大于所述第一冲片的数量。
  7. 根据权利要求5所述的定子铁芯，其中，所述定子冲片包括第一冲片、第二冲片和第三冲片，所述第三冲片的槽口宽度大于所述第二冲片的槽口宽度，且小于所述第一冲片的槽口宽度。
  8. 根据权利要求7所述的定子铁芯，其中，
    所述第三冲片的数量大于所述第一冲片的数量；或
    所述第三冲片的数量大于所述第二冲片的数量。
  9. 根据权利要求2或3所述的定子铁芯，其中，所述定子冲片还包括：
    第四冲片，所述第四冲片的所述定子齿的齿靴不对称，且在所述第四冲片上，所述定子齿的周向一端与所述定子冲片的轴线的第一连线OA与所述定子齿的中心线OC之间形成第一角度μ4，所述定子齿的周向另一端与所述定子冲片的轴线的第二连线OB与所述定子齿的中心线OC之间形成第二角度v4，所述第一角度μ4＜所述第二角度v4。
  10. 根据权利要求9所述的定子铁芯，其中，所述第四冲片的槽口宽度小于所述第一冲片的槽口宽度；
    其中，所述第四冲片的数量大于所述第一冲片的数量。
  11. 根据权利要求9所述的定子铁芯，其中，所述定子冲片包括第一冲片、第二冲片和第四冲片，所述第四冲片的槽口宽度大于所述第二冲片的槽口宽度，且小于所述第一冲片的槽口宽度。
  12. 根据权利要求11所述的定子铁芯，其中，
    所述第四冲片的数量大于所述第一冲片的数量；或
    所述第四冲片的数量大于所述第二冲片的数量。
  13. 一种电机结构，其中，包括：
    转子结构；
    如权利要求1至12中任一项所述的定子铁芯，与所述转子结构同轴设置，且所述定子铁芯能够相对于所述定子铁芯单向或双向转动。
  14. 根据权利要求13所述的电机结构，其中，所述转子结构上设有多个永磁体槽，多个永磁体槽沿所述转子结构的周向环形设置。
  15. 一种衣物处理装置，其中，包括：
    壳体；
    如权利要求13或14所述的电机结构，设于所述壳体内。
PCT/CN2022/078899 2021-09-27 2022-03-02 定子铁芯、电机结构和衣物处理装置 WO2023045263A1 (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002136003A (ja) * 2000-10-24 2002-05-10 Mitsubishi Electric Corp 回転電機の固定子
JP2010263786A (ja) * 2010-08-23 2010-11-18 Mitsubishi Electric Corp 回転電機の製造方法
CN113300501A (zh) * 2021-05-17 2021-08-24 安徽威灵汽车部件有限公司 定子铁芯、电机、压缩机和车辆
CN113890218A (zh) * 2021-09-27 2022-01-04 佛山市威灵洗涤电机制造有限公司 定子铁芯、电机结构和衣物处理装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002136003A (ja) * 2000-10-24 2002-05-10 Mitsubishi Electric Corp 回転電機の固定子
JP2010263786A (ja) * 2010-08-23 2010-11-18 Mitsubishi Electric Corp 回転電機の製造方法
CN113300501A (zh) * 2021-05-17 2021-08-24 安徽威灵汽车部件有限公司 定子铁芯、电机、压缩机和车辆
CN113890218A (zh) * 2021-09-27 2022-01-04 佛山市威灵洗涤电机制造有限公司 定子铁芯、电机结构和衣物处理装置

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