CN209170072U - Electric machine - Google Patents
Electric machine Download PDFInfo
- Publication number
- CN209170072U CN209170072U CN201821744410.7U CN201821744410U CN209170072U CN 209170072 U CN209170072 U CN 209170072U CN 201821744410 U CN201821744410 U CN 201821744410U CN 209170072 U CN209170072 U CN 209170072U
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- China
- Prior art keywords
- rotor
- magnetic
- magnetic part
- magnet steel
- stator
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- 230000005291 magnetic effect Effects 0.000 claims abstract description 70
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000005389 magnetism Effects 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract 1
- 230000004907 flux Effects 0.000 description 16
- 230000035699 permeability Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000005292 diamagnetic effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model relates to a motor field particularly, relates to a motor, stator and rotor established including overlapping each other, the rotor has the magnet steel that a plurality of circumference distribute, the rotor is provided with keeps off magnetism spare, it is located to keep off magnetism spare the magnet steel with between the stator. The magnetism blocking piece reduces the occurrence of the magnetic leakage phenomenon of the rotor and improves the magnetic density and the torque density of the motor.
Description
Technical field
The utility model relates to technical field of motors, in particular to a kind of motor.
Background technique
In magneto, in order to improve motor performance, it usually needs higher magnetic property is obtained, due to by permanent-magnet material
Price limit, under finite structure, compared to surface-mount type and embedded radial rotor, built-in tangential formula rotor structure can effectively increase
Magnetic flux area improves effective air gap magnetic flux, and then promotes motor performance.
But the permanent magnet of embedded tangential structure, there are different degrees of leakages for the inner and outer of the radial direction of permanent magnet
Magnetic phenomenon can reduce the efficiency and stability of motor, the setting of magnetic bridge influences whether rotor because of leakage field caused by intereelectrode short-circuit
Structural strength, therefore the structural strength of rotor is mutually restricted with magnetism isolating effect, cannot effectively reduce the generation of magnetic flux leakage.
Utility model content
The purpose of this utility model is to provide a kind of motors, can reduce rotor leakage, improve motor flux density and turn
Square density.
The embodiments of the present invention are achieved in that
A kind of motor, including the stator and rotor being mutually arranged, the rotor has multiple circumferentially distributed magnet steel；
The rotor is provided with gear magnetic part, and the gear magnetic part is located at the magnet steel towards the stator side.
Preferably, above-mentioned rotor opens up the groove for accommodating the gear magnetic part, and the groove is located at the magnet steel direction
The side of the stator.
Preferably, above-mentioned groove extends along the axis direction of the rotor.
Preferably, the material of above-mentioned gear magnetic part is copper alloy.
Preferably, above-mentioned gear magnetic part is connect by way of pouring with the rotor.
Preferably, above-mentioned rotor is set in the stator interior, and the gear magnetic part is located at the magnet steel towards the rotor
The side of peripheral side.
Preferably, said stator is set in the internal rotor.
Preferably, above-mentioned rotor has the magnetic slot for accommodating the magnet steel, and the magnetic slot is outer with the rotor
Side connection；
The two sides of the magnetic slot towards the rotor outer periphery side direction are provided with the card for being clamped the gear magnetic part
Slot.
Preferably, above-mentioned rotor has the magnetic slot for accommodating the magnet steel, and the magnetic slot is arranged with the rotor
The inner circumferential side of the stator is connected to；
The two sides of the magnetic slot towards the rotor inner circumferential side direction are provided with the card for being clamped the gear magnetic part
Slot.
The beneficial effect of the utility model embodiment is:
Separate the leakage path of motor, increase motor flux density and its torque density, improves motor load capacity.
The magnetic permeability of magnetic part is kept off close to space permeability, the leakage path that magnetic part has separated rotor is kept off, it is existing to reduce leakage field
The generation of elephant improves motor flux density and torque density.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the utility model embodiment structural schematic diagram；
Fig. 2 is that this practical new rotor leakage emulates schematic diagram.
Icon: 1- magnet steel；2- keeps off magnetic part.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, or
The utility model product using when the orientation or positional relationship usually put, be merely for convenience of description the utility model and letter
Change description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation construct and
Operation, therefore should not be understood as limiting the present invention.In addition, term " first ", " second ", " third " etc. are only used for area
Divide description, is not understood to indicate or imply relative importance.
In addition, the terms such as term "horizontal", "vertical" are not offered as requiring component abswolute level or pendency, but can be slightly
Low dip.It is not to indicate that the structure has been had to if "horizontal" only refers to that its direction is more horizontal with respect to for "vertical"
It is complete horizontal, but can be slightly tilted.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or it is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediary can also be passed through
It is indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, it can be managed with concrete condition
Solve the concrete meaning of above-mentioned term in the present invention.
Embodiment 1:
Fig. 1-2 is please referred to, the present embodiment provides a kind of motors, including the stator and rotor being mutually arranged, the rotor tool
There are multiple circumferentially distributed magnet steel, magnet steel extends along the axial direction of rotor；The rotor is provided with gear magnetic part, the gear magnetic part
Positioned at the magnet steel towards the side of the stator.
When the motor rotates, gear magnetic part stops the leakage path of rotor, changes the trend of the magnetic line of force, improves motor flux density
And torque density.Motor can be default sub-motor or external stator motor, i.e., stator is set in internal rotor or rotor is set in
Stator interior.
Non-magnetic elastic component has separated the leakage path of rotor, reduces the generation of magnetic flux leakage, improves motor flux density
And torque density.
Rotor opens up the groove for accommodating the gear magnetic part 2, and groove extends along the axis direction of the rotor, described recessed
Slot position is between the magnet steel 1 and stator.
The material for keeping off magnetic part 2 is copper alloy, and gear magnetic part 2 is connect by way of pouring with rotor, and gear magnetic part 2 and rotor connect
The stability connect is good, and keeps off magnetic part 2 and improve rotor integral strength, flies out when preventing rotor magnetic shoe from rotating.
Copper alloy structural strength is high, and magnetic permeability can effectively separate the leakage path of rotor close to space permeability, improves electricity
Machine flux density.
Rotor has magnetic slot, when stator is set in rotor outer periphery side, the peripheral side of magnetic slot and the rotor
Connection；The magnetic slot is provided with the card slot for being clamped gear magnetic part 2 in the two sides towards the rotor outer periphery side direction, keeps off magnetic
Part 2 is fixed on rotor.
When stator is set in internal rotor, magnetic slot is connected to the inner circumferential side of rotor, in magnetic slot towards rotor inner circumferential
Two sides be provided with card slot, gear magnetic part is fixed in card slot, while stopping magnet steel, prevents magnet steel from flying in rotor rotation process
Out.
It is good to keep off the diamagnetic performance of magnetic part 2, gear magnetic part 2 is same preventing magnet steel from flying out by being arranged on rotor by card slot
After power machine leakage path.
As shown in connection with fig. 2, a kind of motor, rotor are socketed in stator interior, and machine shaft drives rotor rotation, and rotor is in magnetic
The side magnetic flux leakage of steel towards rotor outer periphery side is reduced, and is reduced the generation of motor flux leakage phenomenon, is improved the flux density of motor
And torque density, motor performance improve.
It should be noted that the magnetic permeability of the gear magnetic part 2 in the utility model is very low, close to space permeability.Keep off magnetic part
2 include two kinds of set-up modes, one is replacing magnetic bridge to be arranged on rotor, blocks the leakage path of motor, another kind be
It slots at magnetic bridge, as a part of magnetic bridge, achievees the effect that separate motor flux leakage path.Motor flux leakage is reduced, is improved
Motor flux density and torque density.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (9)
1. a kind of motor, which is characterized in that including the stator and rotor being mutually arranged, the rotor has multiple circumferentially distributed
Magnet steel (1)；
The rotor is provided with gear magnetic part (2), and the gear magnetic part (2) is located at the magnet steel (1) towards the side of the stator.
2. motor according to claim 1, which is characterized in that the rotor is opened up for accommodating gear magnetic part (2)
Groove, the groove are located at the magnet steel (1) towards the side of the stator.
3. motor according to claim 2, which is characterized in that the groove extends along the axis direction of the rotor.
4. motor according to claim 1, which is characterized in that the material of gear magnetic part (2) is copper alloy.
5. motor according to claim 4, which is characterized in that the gear magnetic part (2) by way of pouring with described turn
Son connection.
6. motor according to claim 1, which is characterized in that the rotor is set in the stator interior, the gear magnetic
Part (2) is located at side of the magnet steel (1) towards the rotor outer periphery side.
7. motor according to claim 1, which is characterized in that the stator sleeve is located in the rotor portion.
8. motor according to claim 6, which is characterized in that the rotor has the magnetic for accommodating the magnet steel (1)
Steel tank, the magnetic slot are connected to the peripheral side of the rotor；
The two sides of the magnetic slot towards the rotor outer periphery side direction are provided with the card for being clamped gear magnetic part (2)
Slot.
9. motor according to claim 7, which is characterized in that the rotor has the magnetic for accommodating the magnet steel (1)
Steel tank, the magnetic slot are connected to the inner circumferential side of the rotor；
The two sides of the magnetic slot towards the rotor inner circumferential side direction are provided with the card slot for being clamped gear magnetic part (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821744410.7U CN209170072U (en) | 2018-10-25 | 2018-10-25 | Electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821744410.7U CN209170072U (en) | 2018-10-25 | 2018-10-25 | Electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209170072U true CN209170072U (en) | 2019-07-26 |
Family
ID=67335206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821744410.7U Active CN209170072U (en) | 2018-10-25 | 2018-10-25 | Electric machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209170072U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109510348A (en) * | 2018-10-25 | 2019-03-22 | 珠海格力电器股份有限公司 | Electric machine |
-
2018
- 2018-10-25 CN CN201821744410.7U patent/CN209170072U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109510348A (en) * | 2018-10-25 | 2019-03-22 | 珠海格力电器股份有限公司 | Electric machine |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |