CN211127360U - Super-efficient motor stator magnetism slot wedge and motor stator - Google Patents
Super-efficient motor stator magnetism slot wedge and motor stator Download PDFInfo
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- CN211127360U CN211127360U CN201922250348.7U CN201922250348U CN211127360U CN 211127360 U CN211127360 U CN 211127360U CN 201922250348 U CN201922250348 U CN 201922250348U CN 211127360 U CN211127360 U CN 211127360U
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Abstract
The utility model provides a super high-efficient motor stator magnetism slot wedge and motor stator, to current super high-efficient motor stator efficiency, the unqualified not enough of temperature rise, the utility model discloses a following technical scheme: the super-efficient motor stator comprises a stator punching sheet and a magnetic slot wedge, wherein the magnetic slot wedge consists of a slot wedge long transverse edge, two slot wedge side edges, two slot wedge bevel edges, two slot wedge straight edges and a slot wedge short transverse edge from inside to outside in sequence. The utility model discloses a motor stator can become level and smooth with the air gap magnetic field distribution curve of motor, air gap magnetic field's higher harmonic greatly reduced to reduce the stray loss of motor, make motor efficiency reach 1 level energy efficiency index requirement stipulated in the GB18613-2012 standard, motor efficiency can improve 0.7%, and the temperature rise reduces 5~8K, cost reduction 15%.
Description
Technical Field
The utility model belongs to the technical field of motor stator, concretely relates to super high-efficient motor stator magnetism slot wedge and motor stator.
Background
With the popularization and the popularization of high-efficiency motors, the requirements of customers on the efficiency of the motors are continuously improved, and the loss, particularly the stray loss of the motors is often greatly different from the design value due to the influences of the process, the assembly, the manufacture and the like, so that the efficiency and the temperature rise are unqualified; in order to improve the efficiency, reduce the temperature rise and solve the stray consumption, three basic modes of groove type changing, copper wire adding and punching sheet material changing are generally adopted in the general design aspect, and the three methods cause the cost of the motor to be increased but the efficiency is not obviously increased.
When the stator notch adopts a non-magnetic conducting material, the magnetic permeability of the stator notch is very low, so that the air gap magnetic resistance change under the tooth slot is aggravated, the air gap magnetic field distribution pulsates and contains higher harmonic components, and thus the surface loss and the pulse vibration loss of the motor are increased, the temperature rise of the motor is increased, the efficiency is reduced, the vibration and noise (electromagnetic noise) are increased, and other electrical properties are reduced.
If the magnetic slot wedge is adopted in the stator open slot, the influence of the slot on the distribution of the air gap magnetic field can be reduced, so that the magnetic density distribution in the air gap tends to be uniform, and the open slot motor can obtain the electromagnetic characteristics of a semi-open slot or a semi-closed slot. The distribution curve of the air-gap magnetic field of the motor becomes smooth, and the higher harmonics of the air-gap magnetic field are greatly reduced, so that the stray loss of the motor is reduced, reflected by the reduction of the total iron consumption, the efficiency of the motor is improved, the temperature rise is reduced, and the vibration and noise characteristics of the motor can be improved.
Disclosure of Invention
The utility model discloses to current super high efficiency motor stator efficiency, the unqualified not enough of temperature rise, provide a super high efficiency motor stator magnetism slot wedge and motor stator, satisfy relevant standard requirement.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the magnetic slot wedge consists of a long transverse edge, two slot wedge side edges, two slot wedge bevel edges, two slot wedge straight edges and a slot wedge short transverse edge from inside to outside in sequence.
A super-efficient motor stator comprises a stator punching sheet and a magnetic slot wedge, wherein the magnetic slot wedge is the magnetic slot wedge of the super-efficient motor stator.
As an improvement of a motor stator, winding grooves extending inwards are uniformly distributed on the inner diameter circular edge of the stator punching sheet, the winding grooves are sequentially formed by punching sheet circular arc edges, two punching sheet side edges, two punching sheet bevel edges and two punching sheet straight edges from inside to outside, and the groove width formed at the connecting positions of the two punching sheet side edges and the punching sheet circular arc edges is the same as the diameter of the punching sheet circular arc edges.
As an improvement of a motor stator, the short transverse edge of the magnetic slot wedge is tangent to the notch of the stator punching sheet. Since the iron loss and no-load current decrease as the thickness of the magnetic slot wedge increases, the magnetic slot wedge is most effective when tangent to the iron core slot opening.
As an improvement of the motor stator, the side edge of the magnetic slot wedge is parallel to the side edge of the stator punching sheet.
As an improvement of the motor stator, the bevel edge of the magnetic slot wedge is parallel to the bevel edge of the stator punching sheet.
As an improvement of the motor stator, the straight edge of the magnetic slot wedge is parallel to the straight edge of the stator punching sheet.
As an improvement of the motor stator, the long transverse edge of the slot wedge of the magnetic slot wedge is parallel to the short transverse edge of the slot wedge.
As an improvement of the motor stator, the distance between the parallel part of the magnetic slot wedge and the winding slot is between 0.15 mm and 0.2 mm.
As an improvement of a motor stator, the inner diameter of the stator punching sheet is phi 230mm, the outer diameter of the stator punching sheet is phi 350mm, the number of the winding grooves is 48, the depth of each winding groove is 48.25mm, the diameter of the circular arc edge of the punching sheet is 11.9mm, the depth of the straight edge of the punching sheet is 0.8mm, the width of a groove formed at the joint of the side edge of the punching sheet and the bevel edge is 9.1mm, the tangential included angle formed by the bevel edge of the punching sheet and the inner diameter of the stator punching sheet is 30 degrees, and the width of a groove formed by the straight edge of the punching sheet is 3.
As an improvement of a motor stator, the stator punching sheet is processed by adopting a 50W310 non-oriented silicon steel sheet material.
The utility model discloses a motor stator can become level and smooth with the air gap magnetic field distribution curve of motor, air gap magnetic field's higher harmonic greatly reduced to reduce the stray loss of motor, make motor efficiency reach 1 level energy efficiency index requirement stipulated in the GB18613-2012 standard, motor efficiency can improve 0.7%, and the temperature rise reduces 5~8K, cost reduction 15%. Therefore, the load can be improved, the overload capacity can be allowed to reach 120% -125%, and the device can operate for a long time. The utility model discloses a motor stator, extendible to YE2, YE3 series product.
Drawings
Fig. 1 is a schematic structural diagram of a stator punching sheet according to a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a winding slot of a stator punching sheet according to a first embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a magnetic slot wedge of a stator punching sheet according to a first embodiment of the present invention.
Fig. 4 is a schematic view illustrating the cooperation between the magnetic slot wedge and the winding slot of the stator punching sheet according to the first embodiment of the present invention.
In the figure, 1, a stator punching sheet; 1A, a winding slot; 11. punching a circular arc edge; 12. punching a side edge; 13. the bevel edge of the punching sheet; 14. straight edges of the punched sheets; 2. a magnetic slot wedge; 21. the long transverse edge of the slot wedge; 22. the side edge of the slot wedge; 23. a slot wedge bevel edge; 24. straight edges of the slot wedges; 25. the slot wedge is short and transverse.
Detailed Description
The technical solutions of the embodiments of the present invention will be explained and explained below with reference to the drawings of the embodiments of the present invention, but the embodiments described below are only preferred embodiments of the present invention, and are not all embodiments. Other embodiments obtained by persons skilled in the art without any inventive work based on the embodiments in the embodiment belong to the protection scope of the invention.
Referring to fig. 1 to 4, the utility model discloses a super high-efficient motor stator, including stator punching 1 and magnetism slot wedge 2, magnetism slot wedge 2 comprises slot wedge long transverse edge 21, two slot wedge sides 22, two slot wedge hypotenuses 23, two slot wedge straight flanges 24 and slot wedge short transverse edge 25 from inside to outside in proper order.
As an improvement of a motor stator, winding grooves 1A extending inwards are uniformly distributed on the inner diameter circular edge of the stator punching sheet 1, the winding grooves 1A are sequentially composed of a punching sheet circular arc edge 11, two punching sheet side edges 12, two punching sheet bevel edges 13 and two punching sheet straight edges 14 from inside to outside, and the groove width formed at the joint of the two punching sheet side edges 12 and the punching sheet circular arc edge 11 is the same as the diameter of the punching sheet circular arc edge 11.
As an improvement of the motor stator, the short transverse edge 25 of the magnetic slot wedge 2 is tangent to the notch of the stator punching sheet 1. Since the iron loss and no-load current decrease as the thickness of the magnetic slot wedge increases, the magnetic slot wedge 2 is most effective when it is tangent to the core slot opening.
As an improvement of the motor stator, the slot wedge side 22 of the magnetic slot wedge 2 is parallel to the punching sheet side 12 of the stator punching sheet 1.
As an improvement of the motor stator, the slot wedge bevel edge 23 of the magnetic slot wedge 2 is parallel to the punching sheet bevel edge 13 of the stator punching sheet 1.
As an improvement of the motor stator, the slot wedge straight edge 24 of the magnetic slot wedge 2 is parallel to the punching sheet straight edge 14 of the stator punching sheet 1.
As an improvement of the motor stator, the long wedge transverse edge 21 of the magnetic wedge 2 is parallel to the short wedge transverse edge 25.
As an improvement of the motor stator, the distance between the parallel part of the magnetic slot wedge 2 and the winding slot 1A is between 0.15 mm and 0.2 mm. Namely, the distances between the side edge 22 of the magnetic slot wedge 2 and the side edge 12 of the stator punching sheet 1, between the oblique edge 23 of the magnetic slot wedge 2 and the oblique edge 13 of the stator punching sheet 1, and between the straight edge 24 of the magnetic slot wedge 2 and the straight edge 14 of the stator punching sheet 1 are all 0.15 mm to 0.2 mm.
As an improvement of a motor stator, the inner diameter of the stator punching sheet 1 is phi 230mm, the outer diameter of the stator punching sheet is phi 350mm, the number of the winding grooves 1A is 48, the depth of the winding grooves 1A is 48.25mm, the diameter of the punching sheet circular arc edge 11 is 11.9mm, the depth of the punching sheet straight edge 14 is 0.8mm, the groove width formed at the joint of the punching sheet side edge 12 and the bevel edge is 9.1mm, the tangential included angle formed by the punching sheet bevel edge 13 and the inner diameter of the stator punching sheet 1 is 30 degrees, and the groove width formed by the punching sheet straight edge 1414 is 3.8 mm.
As an improvement of a motor stator, the stator punching sheet 1 is processed by adopting a 50W310 non-oriented silicon steel sheet material.
The embodiment of the utility model provides a motor stator can become the air gap magnetic field distribution curve of motor level and smooth, air gap magnetic field's higher harmonic greatly reduced to reduce the stray loss of motor, make motor efficiency reach 1 level energy efficiency index requirement stipulated in the GB18613-2012 standard, motor efficiency can improve 0.7%, and the temperature rise reduces 5~8K, cost reduction 15%. Therefore, the load can be improved, the overload capacity can be allowed to reach 120% -125%, and the device can operate for a long time.
While the invention has been described with reference to specific embodiments thereof, it will be understood by those skilled in the art that the invention is not limited thereto but is intended to cover various modifications and changes, including but not limited to the details shown in the drawings and described in the foregoing detailed description. Any modification which does not depart from the functional and structural principles of the invention is intended to be included within the scope of the following claims.
Claims (10)
1. The utility model provides a super high efficiency motor stator magnetism slot wedge (2), its characterized in that: the magnetic slot wedge (2) is composed of a long slot wedge transverse edge (21), two slot wedge side edges (22), two slot wedge bevel edges (23), two slot wedge straight edges (24) and a slot wedge short transverse edge (25) from inside to outside in sequence.
2. The utility model provides a super high efficiency motor stator, includes stator punching (1) and magnetism slot wedge (2), its characterized in that: the magnetic slot wedge (2) is the magnetic slot wedge (2) of the super-efficient motor stator in claim 1.
3. The ultra high efficiency motor stator according to claim 2, wherein: evenly distributed has inside extension wire winding groove (1A) on stator punching (1) internal diameter circle limit, wire winding groove (1A) is from inside to outside in proper order by punching a piece circular arc limit (11), two towards piece side (12), two towards piece hypotenuses (13) and two towards piece straight flange (14) and constitutes, and the groove width that two towards piece side (12) and punching a piece circular arc limit (11) junction formed is the same with the diameter of punching a piece circular arc limit (11).
4. The ultra high efficiency motor stator according to claim 2, wherein: and the short transverse edge (25) of the magnetic slot wedge (2) is tangent to the notch of the stator punching sheet (1).
5. The ultra high efficiency motor stator according to claim 2, wherein: and the slot wedge side edge (22) of the magnetic slot wedge (2) is parallel to the punching sheet side edge (12) of the stator punching sheet (1).
6. The ultra high efficiency motor stator according to claim 2, wherein: and the slot wedge bevel edge (23) of the magnetic slot wedge (2) is parallel to the punching sheet bevel edge (13) of the stator punching sheet (1).
7. The ultra high efficiency motor stator according to claim 2, wherein: and the slot wedge straight edge (24) of the magnetic slot wedge (2) is parallel to the punching sheet straight edge (14) of the stator punching sheet (1).
8. The ultra high efficiency motor stator according to claim 2, wherein: the long transverse edge (21) of the magnetic slot wedge (2) is parallel to the short transverse edge (25) of the slot wedge.
9. The ultra high efficiency motor stator according to claim 2, wherein: the distance between the magnetic slot wedge (2) and the parallel position of the winding slot (1A) is between 0.15 mm and 0.2 mm.
10. The ultra high efficiency motor stator according to claim 3, wherein: the inner diameter of the stator punching sheet (1) is phi 230mm, the outer diameter of the stator punching sheet is phi 350mm, the number of the winding grooves (1A) is 48, the depth of the winding grooves (1A) is 48.25mm, the diameter of the punching sheet circular arc edge (11) is 11.9mm, the depth of the punching sheet straight edge (14) is 0.8mm, the groove width formed at the joint of the punching sheet side edge (12) and the bevel edge is 9.1mm, the tangential included angle formed by the punching sheet bevel edge (13) and the inner diameter of the stator punching sheet (1) is 30 degrees, and the groove width formed by the punching sheet straight edge (14) is 3.8 mm; the stator punching sheet (1) is processed by adopting a 50W310 non-oriented silicon steel sheet material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922250348.7U CN211127360U (en) | 2019-12-13 | 2019-12-13 | Super-efficient motor stator magnetism slot wedge and motor stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922250348.7U CN211127360U (en) | 2019-12-13 | 2019-12-13 | Super-efficient motor stator magnetism slot wedge and motor stator |
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| CN211127360U true CN211127360U (en) | 2020-07-28 |
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| CN201922250348.7U Active CN211127360U (en) | 2019-12-13 | 2019-12-13 | Super-efficient motor stator magnetism slot wedge and motor stator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112422020A (en) * | 2020-11-27 | 2021-02-26 | 广西科技大学 | Motor energy-saving technology |
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2019
- 2019-12-13 CN CN201922250348.7U patent/CN211127360U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112422020A (en) * | 2020-11-27 | 2021-02-26 | 广西科技大学 | Motor energy-saving technology |
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