CN208862650U - Motor rotor structure and motor - Google Patents
Motor rotor structure and motor Download PDFInfo
- Publication number
- CN208862650U CN208862650U CN201821802336.XU CN201821802336U CN208862650U CN 208862650 U CN208862650 U CN 208862650U CN 201821802336 U CN201821802336 U CN 201821802336U CN 208862650 U CN208862650 U CN 208862650U
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- Prior art keywords
- magnetic
- motor
- rotor core
- aperture
- magnetic bridge
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 238000010276 construction Methods 0.000 claims description 18
- 230000004907 flux Effects 0.000 abstract description 6
- 238000002955 isolation Methods 0.000 abstract 2
- 230000004075 alteration Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
An electric motor rotor structure and an electric motor, wherein the electric motor rotor structure comprises: the rotor core is provided with a plurality of magnetic steel grooves, the magnetic steel grooves are provided with notches located on the circumference of the rotor core, magnetic isolation bridges are connected in the notches, and at least one magnetic isolation bridge is provided with a plurality of holes. The utility model discloses a mode of trompil changes short magnetic bridge on magnetic bridge, can reduce the magnetic flux through this position to make more magnetic fluxes form the return circuit through the tooth portion of stator, air gap magnetic field intensity amplitude increases, obtains bigger electromagnetic torque, has increased the efficiency of motor.
Description
Technical field
The utility model relates to motor field, more specifically a kind of motor rotor construction and use the rotor knot
The motor of structure.
Background technique
Country advocates Green Development road now, encourages enterprise to improve motor energy efficiency, therefore people are dedicated to promoting electricity
The efficiency of machine, wherein the thickness of magnetic bridge has a great impact to motor performance, but due to the limitation of technology, leads to magnetic bridge
Thickness is also restrained, can be reached to a certain extent by reducing magnetic bridge height with effect similar in thin magnetic bridge.
So the efficiency for how improving motor is this field urgent problem to be solved.
Utility model content
The purpose of the utility model is to provide a kind of motor rotor construction and motors, can increase the efficiency of motor.
In order to achieve the above object, the technical solution adopted in the utility model is as follows:
A kind of motor rotor construction, the rotor core including being equipped with multiple magnetic slots, the magnetic slot are equipped with positioned at described
Notch on rotor core lateral wall is connected with magnetic bridge in the notch, at least one described magnetic bridge is equipped with several
The aperture of quantity.
Preferably, the number of openings in every magnetic bridge is identical or different.
Preferably, the shape of aperture is identical or different in every magnetic bridge.
Preferably, the total height of all apertures is no more than the 3/ of the rotor core height in every magnetic bridge
4。
Preferably, the shape of the aperture is one of circle, rectangle, arc and abnormity or a variety of.
It preferably, further include the magnet steel being mounted in the magnetic slot, the length of the magnet steel is less than the rotor core
Height.
Preferably, the aperture is located at any position of the magnetic bridge.
Preferably, the rotor core is equipped with a number of button point.
A kind of motor including above-mentioned motor rotor construction.
It preferably, further include the stator being set in outside the rotor core, between the rotor core and the stator
Equipped with gap.
Compared with prior art, the utility model at least has the advantages that
The utility model motor rotor construction changes short magnetic bridge by way of the aperture in magnetic bridge, it is possible to reduce logical
The magnetic flux at the position is crossed, so that more magnetic fluxs be made to cross stator teeth forming circuit, air-gap field intensity amplitude increases, and obtains more
Big electromagnetic torque；Counter electromotive force aberration rate is reduced, the fluctuation of speed is reduced, motor noise is reduced, makes motor more even running,
Improve motor performance.
Detailed description of the invention
Fig. 1 is the structure chart of the rotor core of an embodiment；
Fig. 2 is the installation diagram of magnetic slot and magnet steel；
Fig. 3 is the structure chart that aperture is located at magnetic bridge end；
Fig. 4 is that aperture is located at the structure chart in the middle part of magnetic bridge;
Fig. 5 is rotor core and stator matching chart.
Specific embodiment
The utility model is described further with reference to the accompanying drawings and examples.
Referring to Fig.1, a kind of motor rotor construction provided for one embodiment of the utility model, the motor rotor construction
Include rotor core 1, multiple magnetic slots 2 are provided on rotor core, the notch of magnetic slot 2 is located at the circle of rotor core 1
Zhou Shang has also set the magnetic bridge 3 for connecting the notch in notch, has set a number of aperture at least one magnetic bridge 3
4.This structure can reduce the magnetic flux by magnetic bridge, so that the teeth portion for making more magnetic fluxs cross stator is formed into a loop, air gap magnetic
Field intensity amplitude increases, and obtains bigger electromagnetic torque；This also reduces counter electromotive force aberration rate, reduces the fluctuation of speed, reduces electricity
Machine noise makes motor more even running, improves motor performance.
Wherein, the quantity of the aperture in different magnetic bridges 3 can be identical, can not also be identical.Such as the embodiment of Fig. 4,
An aperture wherein has been set in a magnetic bridge 3, two apertures are provided in another magnetic bridge 3.Aperture 4 is in rotor core 1
Length in axial direction can not also be identical.The shape of aperture in every magnetic bridge is identical or not identical, the shape of aperture
It is either a variety of for one of circle, rectangle, arc and abnormity, or crescent etc..
More preferably, the sum of the length of aperture all in every magnetic bridge 3 in 1 axial direction of rotor core, which is no more than, turns
The 3/4 of sub- 1 height of iron core, may insure the intensity of rotor core in this way.
Wherein, as shown in Fig. 2, being additionally provided with magnet steel 5 in magnetic slot 2, the length of magnet steel 5 is less than the height of rotor core 1
It spends, magnet steel 5 is fitted in each magnetic slot 2, is only shown in figure and is mounted with a magnet steel.
In some embodiments, shown in as shown in Figure 1, Figure 3 and Figure 4, any part in magnetic bridge 3 is can be set in aperture 4, than
The end or middle part of magnetic bridge as described in being located at aperture.
More preferably, multiple button points have also been set on rotor core.Rotor core is the structure of formation together of being layering,
For the stability of structure, a number of button point is gone out on single layer rotor core, it so between layers can be mutual
It is buckled together, and also facilitates positioning and installation.
The utility model also protects a kind of motor including above-mentioned motor rotor construction.It is also set in the outside of rotor core
Stator 7(is as shown in Figure 5), gap is equipped between the lateral wall of the rotor core and the inner sidewall of the stator.
The utility model is described in detail above by specific embodiment, these detailed description are only limited to
The content of the utility model is helped skilled in the art to understand, the limit to scope of protection of the utility model can not be interpreted as
System.Those skilled in the art should all wrap various retouchings, the equivalent transformation etc. that above scheme carries out under the utility model design
It is contained in the protection scope of the utility model.
Claims (10)
1. a kind of motor rotor construction, comprising: be equipped with the rotor core (1) of multiple magnetic slots (2), the magnetic slot (2) is equipped with
Notch on the rotor core (1) lateral wall is connected with magnetic bridge (3) in the notch, it is characterised in that: at least
One magnetic bridge (3) is equipped with a number of aperture (4).
2. motor rotor construction according to claim 1, it is characterised in that: opened described on every magnetic bridge (3)
The quantity in hole (4) is identical or different.
3. motor rotor construction according to claim 1, it is characterised in that: the shape of aperture on every magnetic bridge (3)
Shape is identical or different.
4. motor rotor construction according to claim 3, it is characterised in that: all described on every magnetic bridge (3)
The total height of aperture (4) is no more than the 3/4 of the rotor core (1) height.
5. motor rotor construction according to claim 1, it is characterised in that: the shape of the aperture (4) is round, square
One of shape, arc and abnormity are a variety of.
6. motor rotor construction according to claim 1, it is characterised in that: further include being mounted in the magnetic slot (2)
Magnet steel (5), the length of the magnet steel (5) is less than the height of the rotor core (1).
7. motor rotor construction according to claim 1, it is characterised in that: the aperture (4) is located at the magnetic bridge (3)
Any position.
8. motor rotor construction according to claim 1, it is characterised in that: the rotor core (1) is equipped with several numbers
The button point (6) of amount.
9. a kind of motor, it is characterised in that: including such as described in any item motor rotor constructions of claim 1-8.
10. motor according to claim 9, it is characterised in that: further include being set in determining for the rotor core (1) outside
Sub (7) are equipped with gap between the rotor core (1) and the stator (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821802336.XU CN208862650U (en) | 2018-11-02 | 2018-11-02 | Motor rotor structure and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821802336.XU CN208862650U (en) | 2018-11-02 | 2018-11-02 | Motor rotor structure and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208862650U true CN208862650U (en) | 2019-05-14 |
Family
ID=66421941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821802336.XU Active CN208862650U (en) | 2018-11-02 | 2018-11-02 | Motor rotor structure and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208862650U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245364A (en) * | 2018-11-02 | 2019-01-18 | 珠海凌达压缩机有限公司 | Motor rotor structure and motor |
-
2018
- 2018-11-02 CN CN201821802336.XU patent/CN208862650U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245364A (en) * | 2018-11-02 | 2019-01-18 | 珠海凌达压缩机有限公司 | Motor rotor structure and motor |
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