CN219477686U - Stator, claw pole motor and vehicle - Google Patents
Stator, claw pole motor and vehicle Download PDFInfo
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- CN219477686U CN219477686U CN202320264049.2U CN202320264049U CN219477686U CN 219477686 U CN219477686 U CN 219477686U CN 202320264049 U CN202320264049 U CN 202320264049U CN 219477686 U CN219477686 U CN 219477686U
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- claw
- stator
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- claw pole
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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Abstract
The utility model provides a stator, a claw pole motor and a vehicle, wherein the stator is used for the claw pole motor and comprises the following components: claw pole, claw pole includes: the magnetic conduction ring and the plurality of claw parts are connected to the inner side of the magnetic conduction ring and are circumferentially distributed; wherein, set up at least one slit on a plurality of claw portions, the slit extends along the axial of stator, and the length of slit is less than the length of claw portion.
Description
Technical Field
The utility model belongs to the technical field of motors, and particularly relates to a stator, a claw pole motor and a vehicle.
Background
The claw pole motor can produce the vortex when the during operation, and eddy current loss can cause claw pole motor to generate heat, and claw pole motor produces the heat loss because of generating heat, leads to the efficiency of claw pole motor to reduce easily.
Disclosure of Invention
The present utility model aims to solve one of the technical problems existing in the prior art or related technologies.
In view of this, the present utility model proposes, in a first aspect, a stator for a claw-pole motor, the stator comprising: claw pole, claw pole includes: the magnetic conduction ring and the plurality of claw parts are connected to the inner side of the magnetic conduction ring and are circumferentially distributed; the claw part is provided with at least one slit, the slit extends along the axial direction of the stator, the slit penetrates through the thickness of the claw part, and the length of the slit is smaller than that of the claw part.
The stator provided by the utility model is provided with the claw poles, the number of the claw poles is usually two, and the two claw poles are connected. In one claw pole, a plurality of claw parts are connected with the magnetic conducting ring, and the claw parts and the magnetic conducting ring can be of an integrated structure. Each claw part is provided with a slit, namely an elongated strip-shaped opening is formed in the claw part, the slit penetrates through the thickness of the claw part, namely the slit penetrates through the claw part along the thickness direction of the claw part, so that the conduction of magnetic force lines can be blocked by arranging the slit on the claw part, the loss caused by silicon steel sheet vortex when the claw pole motor is loaded can be effectively blocked, the iron loss of the claw pole motor can be reduced, and the efficiency of the claw pole motor is further improved.
Because the slit is of an elongated strip-shaped structure, the torque performance of the claw pole motor is less influenced, and therefore, the efficiency of the motor can be improved on the basis of ensuring the torque performance of the claw pole motor by arranging the slit on the claw part.
The slit is of an elongated structure, the slit is formed along the axial direction of the stator, so that the slit can block the conduction of more magnetic force lines, the blocking effect on eddy current loss can be improved, the iron loss of the claw-pole motor is further reduced, and the efficiency of the claw-pole motor is further improved.
In addition, the stator in the technical scheme provided by the utility model can also have the following additional technical characteristics:
of course, in other embodiments, the slit may be provided to extend in other directions, and it is within the scope of the present utility model as long as the slit is provided in the claw portion.
In any of the above technical solutions, the width W1 of the slit is satisfied, W1 is less than or equal to 0.2mm.
In the technical scheme, when the width of the slit is larger than 0.2mm, the width of the slit is larger, and the torque performance of the motor can be greatly influenced at the moment, so that the width of the slit is limited in the range that W1 is less than or equal to 0.2mm, and the efficiency of the motor is improved on the basis of ensuring the torque performance of the claw-pole motor.
In any of the above technical solutions, the magnetic ring is provided with a lightening hole for lightening the weight of the magnetic ring.
In the technical scheme, the weight reducing holes are formed in the magnetic guide ring, the weight of the magnetic guide ring can be reduced by forming the weight reducing holes, and the weight of the claw-pole motor can be reduced under the condition of not reducing the torque by reducing the weight of the magnetic guide ring, so that the power density of the claw-pole motor can be improved, and the performance of the claw-pole motor is further improved.
In any one of the above technical solutions, a plurality of notches are provided on the magnetic ring, the notches are located between two adjacent claw portions, and the lightening holes are located on the radial outer sides of the notches.
In the technical scheme, a plurality of lightening holes are formed in the magnetic conduction ring, the lightening holes are distributed along the circumferential direction of the stator, and the lightening holes are uniformly distributed on the magnetic conduction ring, so that the performance of the motor can be kept stable, and fluctuation is not easy to occur.
The lightening hole is arranged at the middle position of the outer sides of the two adjacent claw parts, and the lightening hole is arranged to reduce the performance influence on the claw-pole motor, so that the power density of the claw-pole motor is improved on the basis of ensuring the performance of the claw-pole motor.
In any of the above embodiments, at least a part of the weight-reducing hole has a width decreasing in a direction away from the axis of the stator.
In this embodiment, the width of a part of the lightening hole is reduced or the width of the entire lightening hole is gradually reduced in a direction away from the axis of the stator.
In this embodiment, the lightening holes are pear-shaped holes.
In any of the above technical solutions, the included angle K between the center lines of two adjacent lightening holes is satisfied, k=360/a, and a is the number of claw portions in the claw pole.
In the technical scheme, the plurality of lightening holes are uniformly distributed along the circumferential direction of the stator, the included angles of the central lines of the two adjacent lightening holes are related to the number of the claw parts, so that the opening positions of the lightening holes can be obtained according to the number of the claw parts, the convenience for determining the opening positions of the lightening holes is improved, and the processing difficulty is reduced.
In any of the above embodiments, the maximum width of the claw portion is W2,0.55× (3.14×D1/A). Ltoreq.W2.ltoreq.0.65× (3.14×D1/A), and D1 is the diameter of the inner ring of the claw portion.
In this embodiment, the maximum width of the claw portion is related to the diameter of the claw portion inner ring and the number of claw portions. For claw pole motors with different sizes, the width of the claw parts can be correspondingly changed, the range of the maximum width of the claw parts is limited according to the diameter of the inner ring of the claw parts and the number of the claw parts, the maximum width of the claw parts can be limited in a reasonable range, and the stable operation of the claw pole motor is ensured.
In any of the above embodiments, the number of lightening holes is equal to the number of claw portions.
In any technical scheme, the thickness L of the claw pole is more than or equal to 0.6mm and less than or equal to 1mm.
In this technical scheme, if the thickness of claw pole is greater than 1mm, the inside wire winding space of claw pole is restricted, if the thickness of claw pole is less than 0.6mm, the magnetic permeability of claw pole will reduce, consequently, limit the thickness of claw pole between 0.6mm to 1mm, can guarantee on the basis of the magnetic permeability of claw pole, improve the inside wire winding space of claw pole.
In any of the above technical solutions, the claw pole includes: the first claw pole and the second claw pole are connected along the axial direction of the stator; along the axial direction of the stator, in the first claw pole, the length of the claw part is H1, the sum of the lengths of the first claw pole and the second claw pole is H2, and the condition that H1 = H2-aL is more than or equal to 0.8 and less than or equal to 1.3 is satisfied.
In the technical scheme, the number of the claw poles is two, the two claw poles are a first claw pole and a second claw pole respectively, and when the length H1 of the claw part in the first claw pole is equal to the sum H2 of the lengths of the first claw pole and the second claw pole, the torque performance of the claw pole motor is higher under the condition that H1 = H2-aL.
In a second aspect, the present utility model provides a claw-pole motor comprising: a rotor; as in the stator of the first aspect, the stator configuration forms an assembly cavity within which the rotor is disposed.
In a third aspect, the present utility model provides a vehicle comprising: the claw pole motor as in the second aspect.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 shows one of the schematic structural views of a claw pole in an embodiment of the utility model;
FIG. 2 shows a second schematic view of the claw pole in an embodiment of the utility model;
FIG. 3 shows a third schematic view of the claw pole in an embodiment of the utility model;
fig. 4 shows a schematic structural view of a motor in an embodiment of the present utility model;
fig. 5 shows an exploded view of a motor in an embodiment of the utility model.
Reference numerals:
110 claw poles, 111 magnetic conduction rings, 112 claw parts, 113 slits, 114 lightening holes, 118 notches, 200 shells, 210 mounting holes, 400 permanent magnet rings, 500 rotating shafts, 600 bearings, 700 magnetic ring supporting plates and 800 stator frameworks.
Detailed Description
In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced in other ways than those described herein, and therefore the scope of the present utility model is not limited to the specific embodiments disclosed below.
A stator, a claw pole motor, and a vehicle provided according to some embodiments of the present utility model are described below with reference to fig. 1 to 5.
As shown in conjunction with fig. 1, 2 and 3, in an embodiment of the present utility model, a stator for a claw-pole motor is provided, the stator including: claw pole 110, claw pole 110 includes: the magnetic conduction ring 111 and the plurality of claw parts 112, wherein the plurality of claw parts 112 are connected to the inner side of the magnetic conduction ring 111 and are circumferentially arranged; wherein, at least one slit 113 is formed on the plurality of claw portions 112, the slit 113 extends along the axial direction of the stator, and the length of the slit 113 is smaller than the length of the claw portions 112.
In the stator provided in this embodiment, the claw poles 110 are disposed in the stator, and the number of the claw poles 110 is usually two, and the two claw poles 110 are connected. In one claw pole 110, a plurality of claw portions 112 are connected to the magnetically conductive ring 111, and the claw portions 112 and the magnetically conductive ring 111 may be of an integral structure. Each claw portion 112 is provided with a slit 113, namely, the claw portion 112 is provided with an elongated strip-shaped opening, the slit penetrates through the thickness of the claw portion, namely, the slit penetrates through the claw portion along the thickness direction of the claw portion, so that the conduction of magnetic force lines can be blocked by arranging the slit 113 on the claw portion 112, loss caused by silicon steel sheet eddy current when the claw pole motor is loaded can be effectively blocked, iron loss of the claw pole motor can be reduced, and efficiency of the claw pole motor is improved.
Because the slit 113 is of an elongated strip-shaped structure, the torque performance of the claw-pole motor is less affected, and therefore, the efficiency of the motor can be improved on the basis of ensuring the torque performance of the claw-pole motor by arranging the slit 113 on the claw portion 112.
In one possible application, the jaw 112 is in the shape of an isosceles trapezoid or triangle. A loop-structured multi-turn copper wire winding is disposed in the interior cavity of the claw pole 110.
The slit 113 is of an elongated structure, and the slit 113 is formed along the axial direction of the stator, so that the slit 113 can block the conduction of more magnetic force lines, thereby improving the blocking effect on eddy current loss, further reducing the iron loss of the claw-pole motor, and further improving the efficiency of the claw-pole motor.
The utility model is shown in FIG. 2, in any of the above embodiments, the width W1 of the slit 113 is satisfied, W1 is 0.2mm or less.
In this embodiment, when the width of the slit 113 is greater than 0.2mm, the width of the slit 113 is greater, which has a greater influence on the torque performance of the motor, so that the width of the slit 113 is limited to be within the range of W1-0.2 mm, and the efficiency of the motor is improved on the basis of ensuring the torque performance of the claw-pole motor.
As shown in fig. 1 and 2, in any of the above embodiments, the magnetic conductive ring 111 is provided with a lightening hole 114 for lightening the weight of the magnetic conductive ring 111.
In this embodiment, the weight reducing holes 114 are formed in the magnetic ring 111, and by forming the weight reducing holes 114, the weight of the magnetic ring 111 can be reduced, and by reducing the weight of the magnetic ring 111, the weight of the claw-pole motor can be reduced without reducing the torque, so that the power density of the claw-pole motor can be increased, and the performance of the claw-pole motor can be improved.
As shown in fig. 2, in any of the above embodiments, a plurality of notches 118 are provided on the magnetic conductive ring 111, the notches 118 are located between two adjacent claw portions 112, and the weight-reducing holes 114 are located radially outside the notches 118.
In this embodiment, a plurality of lightening holes 114 are formed on the magnetic ring 111, the lightening holes 114 are distributed along the circumferential direction of the stator, and the lightening holes 114 are uniformly distributed on the magnetic ring 111, so that the performance of the motor can be kept stable and is not easy to fluctuate.
The lightening holes 114 are provided at intermediate positions outside the adjacent two claw portions 112, and the lightening holes 114 are provided so as to reduce the influence on the performance of the claw-pole motor, thereby improving the power density of the claw-pole motor on the basis of ensuring the performance of the claw-pole motor.
As shown in fig. 2, in any of the above embodiments, at least a portion of the weight-reducing hole 114 decreases in width in a direction away from the axis of the stator.
In this embodiment, the width of a portion of the lightening hole 114 is reduced, or the width of the entire lightening hole 114 is gradually reduced, in a direction away from the axis of the stator.
As shown in fig. 2, in any of the above embodiments, the included angle K between the center lines of two adjacent lightening holes 114 is satisfied, k=360/a, and a is the number of claw portions 112 in the claw pole 110.
In this embodiment, the plurality of lightening holes 114 are equally distributed along the circumference of the stator, and the included angles between the central lines of two adjacent lightening holes 114 are related to the number of the claw portions 112, so that the opening positions of the lightening holes 114 can be obtained according to the number of the claw portions 112, which is beneficial to improving the convenience of determining the opening positions of the lightening holes 114, thereby reducing the processing difficulty.
In any of the above embodiments, the maximum width of the claw portion 112 is W2, 0.55X (3.14 XD 1/A). Ltoreq.W2.ltoreq.0.65X (3.14 XD 1/A), D1 being the diameter of the inner ring of the claw portion 112.
In this embodiment, the maximum width of the jaws 112 is related to the diameter of the inner ring of jaws 112 and the number of jaws 112. For claw pole motors with different sizes, the width of the claw parts 112 also changes correspondingly, the range of the maximum width of the claw parts 112 is limited according to the diameter of the inner ring of the claw parts 112 and the number of the claw parts 112, the maximum width of the claw parts 112 can be limited in a reasonable range, and the stable operation of the claw pole motor is ensured.
In this embodiment, the lightening holes 114 are pear-shaped holes.
In any of the above embodiments, the number of lightening holes 114 is equal to the number of claw portions 112.
In any of the above embodiments, the thickness L of the claw pole 110 is 0.6 mm.ltoreq.L.ltoreq.1 mm.
In this embodiment, if the thickness of the claw pole 110 is greater than 1mm, the winding space inside the claw pole 110 is limited, and if the thickness of the claw pole 110 is less than 0.6mm, the magnetic permeability of the claw pole 110 is reduced, so that the thickness of the claw pole 110 is limited to between 0.6mm and 1mm, and the winding space inside the claw pole 110 can be increased on the basis of ensuring the magnetic permeability of the claw pole 110.
In any of the above embodiments, the claw pole 110 includes: the first claw pole and the second claw pole are connected along the axial direction of the stator. In the axial direction of the stator, in the first claw pole, the length of the claw portion 112 is H1, the sum of the lengths of the first claw pole and the second claw pole is H2, and the condition that H1=H2-aL is satisfied, and a is more than or equal to 0.8 and less than or equal to 1.3 is satisfied.
In this embodiment, the number of the claw poles 110 is two, the two claw poles 110 are a first claw pole and a second claw pole, respectively, and when the sum H2 of the length H1 of the claw 112 in the first claw pole and the lengths of the first claw pole and the second claw pole is satisfied, the torque performance of the claw pole motor is high in the case where h1=h2—al.
In an embodiment of the present utility model, a claw-pole motor is provided, including: the rotor and the stator in the above embodiments, the stator is constructed to form an assembly chamber in which the rotor is disposed.
The stator is provided with claw poles 110, and the number of the claw poles 110 is usually two, and the two claw poles 110 are connected. In one claw pole 110, a plurality of claw portions 112 are connected to the magnetically conductive ring 111, and the claw portions 112 and the magnetically conductive ring 111 may be of an integral structure. Each claw portion 112 is provided with a slit 113, namely, the claw portion 112 is provided with an elongated strip-shaped opening, and the slit 113 is arranged on the claw portion 112, so that the slit 113 can block the conduction of magnetic force lines, thereby effectively blocking the loss caused by the eddy current of the silicon steel sheet when the claw pole motor is loaded, reducing the iron loss of the claw pole motor and further improving the efficiency of the claw pole motor.
Because the slit 113 is of an elongated strip-shaped structure, the torque performance of the claw-pole motor is less affected, and therefore, the efficiency of the motor can be improved on the basis of ensuring the torque performance of the claw-pole motor by arranging the slit 113 on the claw portion 112.
In one possible application, the jaw 112 is in the shape of an isosceles trapezoid or triangle. A loop-structured multi-turn copper wire winding is disposed in the interior cavity of the claw pole 110.
As shown in connection with fig. 4 and 5, the claw-pole motor further includes: the permanent magnet ring 400, the permanent magnet ring 400 is arranged on the rotor, and the material of the permanent magnet ring 400 is a magnetic injection neodymium iron boron or mould pressing neodymium iron boron material. The magnetizing mode of the permanent magnet ring 400 is sine wave magnetizing or saddle wave magnetizing.
The claw-pole motor further includes a housing 200 into which the stator and the rotor are assembled, and a mounting hole 210 is provided in the housing 200, and the claw-pole motor can be mounted by a locking member passing through the mounting hole 210.
The claw pole motor further comprises: the magnetic ring comprises a rotating shaft 500, a bearing 600, a magnetic ring supporting plate 700 and a stator framework 800, wherein the magnetic ring supporting plate 700 is connected with a permanent magnetic ring 400, the bearing 600 is sleeved on the rotating shaft 500, and the stator framework 800 is connected with a claw pole 110.
In an embodiment of the present utility model, there is provided a vehicle including: the claw pole motor in the above embodiment can achieve the technical effects in the above embodiment, and is not described herein.
The vehicle can be a traditional fuel vehicle or a new energy vehicle. The new energy automobile comprises a pure electric automobile, a range-extended electric automobile, a hybrid electric automobile, a fuel cell electric automobile, a hydrogen engine automobile and the like.
In the present utility model, the term "plurality" means two or more, unless explicitly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. 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.
In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
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 (11)
1. A stator for a claw-pole motor, the stator comprising:
claw pole, the claw pole includes: the magnetic conduction ring and the plurality of claw parts are connected to the inner side of the magnetic conduction ring and are circumferentially distributed;
wherein the claw part is provided with at least one slit which extends along the axial direction of the stator, the slit penetrates through the thickness of the claw portion, and the length of the slit is smaller than the length of the claw portion.
2. The stator of claim 1, wherein the width W1 of the slot is such that W1 is less than or equal to 0.2mm.
3. A stator according to claim 1 or 2, wherein the magnetically permeable ring is provided with lightening holes for lightening the magnetically permeable ring.
4. A stator according to claim 3, wherein the magnetic ring is provided with a plurality of notches, the notches being located between adjacent two of the claw portions, and the lightening holes being located radially outwardly of the notches.
5. A stator according to claim 3, wherein at least a portion of the lightening holes taper in width in a direction away from the axis of the stator.
6. A stator according to claim 3, wherein the angle K between the centre lines of two adjacent lightening holes is such that K = 360/a, a being the number of said claw portions in said claw pole.
7. The stator according to claim 6, wherein the maximum width of the claw portion is W2,0.55× (3.14×d1/a) +.w2+.0.65× (3.14×d1/a), and D1 is the diameter of the claw portion inner ring.
8. The stator according to claim 1 or 2, characterized in that the thickness L of the claw pole is 0.6mm +.l +.1 mm.
9. The stator of claim 8, wherein the claw pole comprises: the first claw pole and the second claw pole are connected along the axial direction of the stator;
along the axial direction of the stator, in the first claw pole, the length of the claw part is H1, the sum of the lengths of the first claw pole and the second claw pole is H2, and the condition that H1 = H2-aL is satisfied, and a is more than or equal to 0.8 and less than or equal to 1.3 is satisfied.
10. A claw pole motor comprising:
a rotor;
a stator as claimed in any one of claims 1 to 9, the stator being configured to form a mounting cavity within which the rotor is disposed.
11. A vehicle, characterized by comprising:
the claw-pole motor of claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320264049.2U CN219477686U (en) | 2023-02-21 | 2023-02-21 | Stator, claw pole motor and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320264049.2U CN219477686U (en) | 2023-02-21 | 2023-02-21 | Stator, claw pole motor and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219477686U true CN219477686U (en) | 2023-08-04 |
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ID=87464944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320264049.2U Active CN219477686U (en) | 2023-02-21 | 2023-02-21 | Stator, claw pole motor and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219477686U (en) |
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2023
- 2023-02-21 CN CN202320264049.2U patent/CN219477686U/en active Active
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