CN204012965U - Stator core construction and there is its motor - Google Patents

Stator core construction and there is its motor Download PDF

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Publication number
CN204012965U
CN204012965U CN201420420646.0U CN201420420646U CN204012965U CN 204012965 U CN204012965 U CN 204012965U CN 201420420646 U CN201420420646 U CN 201420420646U CN 204012965 U CN204012965 U CN 204012965U
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China
Prior art keywords
iron core
stator core
skewed slot
core construction
via openings
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CN201420420646.0U
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Chinese (zh)
Inventor
殷鹏冬
夏宝
王周叶
杨光力
焦雷
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Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd
Zhuhai Kaibang Motor Manufacture Co Ltd
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Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd
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Priority to CN201420420646.0U priority Critical patent/CN204012965U/en
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Abstract

The utility model provides a kind of stator core construction and has had its motor.Stator core construction of the present utility model, stator core construction is the cylinder with axially extending bore, it comprises: a plurality of iron core through holes, around cylindrical axis, circumferentially arrange, the axis of iron core through hole parallels with cylindrical axis, and each iron core through hole has the iron core via openings being arranged on cylindrical inner surface; A plurality of skewed slots, are arranged on inner surface, between at least part of two adjacent iron core via openings, have at least one skewed slot, and the bearing of trend of skewed slot and cylindrical axis have angle, and skewed slot runs through cylindrical two end faces.Owing to having set up skewed slot on inner surface, cogging torque stack is offset and reach minimum.Thereby the utility model can effectively reduce cogging torque reduces load noise.

Description

Stator core construction and there is its motor
Technical field
The utility model relates to field of household appliances, in particular to a kind of stator core construction and have its motor.
Background technology
Permagnetic synchronous motor relies on the advantages such as the speed adjusting performance of its wide region and high power density, is promoted widely at present.Yet due to the existence of cogging torque, cause noise of motor larger, to the higher field of noise requirements, will be subject to certain restrictions as air-conditioning.Therefore, how to reduce the emphasis that cogging torque becomes current research.
Utility model content
Thereby the utility model aims to provide a kind of motor that cogging torque reduces the stator core construction of load noise and has it that effectively reduces.
To achieve these goals, according to an aspect of the present utility model, a kind of stator core construction is provided, stator core construction is the cylinder with axially extending bore, it comprises: a plurality of iron core through holes, around cylindrical axis, circumferentially arrange, the axis of iron core through hole parallels with cylindrical axis, and each iron core through hole has the iron core via openings being arranged on cylindrical inner surface; A plurality of skewed slots, are arranged on inner surface, between at least part of two adjacent iron core via openings, have at least one skewed slot, and the bearing of trend of skewed slot and cylindrical axis have angle, and skewed slot runs through cylindrical two end faces.
Further, between two adjacent iron core via openings, all there is a skewed slot.
Further, a plurality of skewed slots are uniform on inner surface around cylindrical axis.
Further, a plurality of iron core through holes are circumferentially uniform around cylindrical axis.
Further, the cross section of skewed slot is rectangular.
Further, the cross section of skewed slot is rounded.
Further, the center line of adjacent skewed slot is parallel to each other.
Further, the line at the center of at least two iron core through holes is by cylindrical axis.
Further, the line at the center of the center of through hole and iron core via openings is by the axis of iron core through hole.
Further, iron core through hole, iron core via openings and skewed slot are 12.
According to another aspect of the present utility model, a kind of motor is also provided, comprise stator core construction, stator core construction is above-mentioned stator core construction.
Application the technical solution of the utility model, stator core construction is the cylinder with axially extending bore.Stator core construction comprises a plurality of iron core through holes and a plurality of skewed slot.A plurality of iron core through holes circumferentially arrange around cylindrical axis, and the axis of iron core through hole parallels with cylindrical axis, and each iron core through hole has the iron core via openings being arranged on cylindrical inner surface.A plurality of skewed slots are arranged on inner surface, between at least part of two adjacent iron core via openings, have at least one skewed slot, and the bearing of trend of skewed slot and cylindrical axis have angle, and skewed slot runs through cylindrical two end faces.Owing to having set up skewed slot on inner surface, cogging torque stack is offset and reach minimum.Therefore, thus stator core construction of the present utility model and the motor with it can effectively reduce cogging torque reduces load noise.
Accompanying drawing explanation
The Figure of description that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the perspective view of stator core construction of the present utility model;
Fig. 2 shows the front view of stator core construction of the present utility model; And
Fig. 3 shows the cutaway view of stator core construction of the present utility model.
Embodiment
It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
As shown in Figure 1, the utility model provides a kind of stator core construction.Particularly, stator core construction is the cylinder with axially extending bore 10.This stator core construction comprises a plurality of iron core through holes 20 and a plurality of skewed slot 40.
Wherein, a plurality of iron core through holes 20 circumferentially arrange around cylindrical axis, and the axis of iron core through hole 20 parallels with cylindrical axis.The opening at the two ends of each iron core through hole 20 is opened in respectively on cylindrical two end faces 50, and each iron core through hole 20 has the iron core via openings 21 being arranged on cylindrical inner surface 30.Iron core via openings 21 is interconnected iron core through hole 20 and through hole 10.
A plurality of skewed slots 40 are arranged on inner surface 30, between at least part of two adjacent iron core via openings 21, have at least one skewed slot 40, and the bearing of trend of skewed slot 40 and cylindrical axis have angle, and skewed slot 40 runs through cylindrical two end faces 50.That is to say, can be to have one or more skewed slot 40 between two adjacent iron core via openings 21 partly, can be also to have one or more skewed slot 40 between each two adjacent iron core via openings 21.
Owing to having set up skewed slot 40 on inner surface, cogging torque stack is offset and reach minimum, offer skewed slot 40 less on electromagnetic torque and back electromotive force impact, torque pulsation also reduces, thereby improves and reduced load noise.Particularly, E=4.44Nkf Φ, E back electromotive force wherein, N is umber of turn, and K is winding coefficient, and Φ is magnetic flux, and f is electric frequency.Stator core inner surface otch, wherein N, K, f are constant, the amplitude of Φ is had to the trend reducing, but impact is little, tackle mutually back electromotive force impact less, T=3*EI/ Ω, wherein when Ω, I are invariant, be that electromagnetic torque and back electromotive force are proportional relations, so electromagnetic torque decline is smaller.Therefore, thus stator core construction of the present utility model and to have its electric machine structure simple and can effectively reduce cogging torque and reduce load noise.
As shown in Figure 1 to Figure 3, preferably, between two adjacent iron core via openings 21, all there is a skewed slot 40.Only between two adjacent iron core via openings 21, a skewed slot 40 is set, such design is to reduce, under the prerequisite of cogging torque, can also to reach effect simple in structure, simple for production.
As shown in Figure 1 to Figure 3, a plurality of skewed slots 40 are uniform on inner surface 30 around cylindrical axis, and the center line of adjacent skewed slot 40 is parallel to each other.
A plurality of iron core through holes 20 are circumferentially uniform around cylindrical axis, and the line at least two iron core through hole 20 centers is by cylindrical axis.
The line at through hole 10 center and iron core via openings 21 center is by the axis of iron core through hole 20.
In the preferred embodiment that the utility model provides, the cross section of skewed slot 40 is rectangular, and certainly, the cross section of skewed slot 40 also can be rounded.The shape of rectangle and circle shape is regular, easy to make, and reduce the effect of cogging torque can be better.
Preferably, iron core through hole 20, iron core via openings 21 and skewed slot 40 are 12.
The fabrication processing of stator core construction of the present utility model mainly divides following three steps:
(1) punching press stator punching profile: silicon steel sheet is carried out to punching press and form stator punching profile except skewed slot 40;
(2) processing skewed slot 40: complete after above-mentioned Sheet Metal Forming Technology, will process skewed slot 40 to stator punching, and need the certain angle that staggers between every stator punching skewed slot 40;
(3) laminate stator core: said stator punching slices are laminated and form stator core.
According to another aspect of the present utility model, a kind of motor is also provided, comprise stator core construction, stator core construction is above-mentioned stator core construction.
As can be seen from the above description, the utility model the above embodiments have realized following technique effect:
Owing to having set up skewed slot 40 on inner surface, cogging torque stack is offset and reach minimum, offer skewed slot 40 less on electromagnetic torque and back electromotive force impact, torque pulsation also reduces, thereby improves and reduced load noise.Therefore, thus stator core construction of the present utility model and to have its electric machine structure simple and can effectively reduce cogging torque and reduce load noise stator core construction.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.

Claims (11)

1. a stator core construction, is characterized in that, described stator core construction is for having the cylinder of axially extending bore (10), and it comprises:
A plurality of iron core through holes (20), around described cylindrical axis, circumferentially arrange, the axis of described iron core through hole (20) parallels with described cylindrical axis, and described in each, iron core through hole (20) has the iron core via openings (21) being arranged on described cylindrical inner surface (30);
A plurality of skewed slots (40), be arranged on described inner surface (30), between at least part of adjacent two described iron core via openings (21), there is skewed slot (40) described at least one, the bearing of trend of described skewed slot (40) and described cylindrical axis have angle, and described skewed slot (40) runs through described cylindrical two end faces (50).
2. stator core construction according to claim 1, is characterized in that, between adjacent two described iron core via openings (21), all has a described skewed slot (40).
3. stator core construction according to claim 2, is characterized in that, a plurality of described skewed slots (40) are upper uniform in described inner surface (30) around described cylindrical axis.
4. stator core construction according to claim 1, is characterized in that, described a plurality of iron core through holes (20) are circumferentially uniform around described cylindrical axis.
5. stator core construction according to claim 1, is characterized in that, the cross section of described skewed slot (40) is rectangular.
6. stator core construction according to claim 1, is characterized in that, the cross section of described skewed slot (40) is rounded.
7. according to the stator core construction described in claim 1 or 5 or 6, it is characterized in that, the center line of adjacent described skewed slot (40) is parallel to each other.
8. stator core construction according to claim 1, is characterized in that, the line at the center of at least two described iron core through holes (20) is by described cylindrical axis.
9. stator core construction according to claim 1, is characterized in that, the line at the center of the center of described through hole (10) and described iron core via openings (21) is by the axis of described iron core through hole (20).
10. stator core construction according to claim 1, is characterized in that, described iron core through hole (20), described iron core via openings (21) and described skewed slot (40) are 12.
11. 1 kinds of motors, comprise stator core construction, it is characterized in that, described stator core construction is the stator core construction described in any one in claim 1 to 10.
CN201420420646.0U 2014-07-28 2014-07-28 Stator core construction and there is its motor Active CN204012965U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420420646.0U CN204012965U (en) 2014-07-28 2014-07-28 Stator core construction and there is its motor

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105119398A (en) * 2015-09-15 2015-12-02 锐奇控股股份有限公司 Stator iron core and motor
CN105322670A (en) * 2014-07-28 2016-02-10 珠海格力节能环保制冷技术研究中心有限公司 Stator core structure and motor possessing the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105322670A (en) * 2014-07-28 2016-02-10 珠海格力节能环保制冷技术研究中心有限公司 Stator core structure and motor possessing the same
CN105119398A (en) * 2015-09-15 2015-12-02 锐奇控股股份有限公司 Stator iron core and motor

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20160415

Address after: Doumen Longshan Town of Doumen District of Zhuhai city in Guangdong province 519110 two West Road No. six

Patentee after: Zhuhai Kaibang Motor Manufacture Co., Ltd.

Patentee after: Zhuhai Gree Energy Saving & Refrigerating Technology Resarch Center Co., Ltd.

Address before: 519070 Guangdong city of Zhuhai province Rooster Hill Road No. 789 building

Patentee before: Zhuhai Gree Energy Saving & Refrigerating Technology Resarch Center Co., Ltd.