CN109510348A - A kind of motor - Google Patents
A kind of motor Download PDFInfo
- Publication number
- CN109510348A CN109510348A CN201811251400.4A CN201811251400A CN109510348A CN 109510348 A CN109510348 A CN 109510348A CN 201811251400 A CN201811251400 A CN 201811251400A CN 109510348 A CN109510348 A CN 109510348A
- Authority
- CN
- China
- Prior art keywords
- rotor
- magnetic part
- magnetic
- magnet steel
- stator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
Abstract
The present invention relates to motor fields, and in particular to a kind of motor, including the stator and rotor being mutually arranged, the rotor has multiple circumferentially distributed magnet steel, and the rotor is provided with gear magnetic part, and the gear magnetic part is between the magnet steel and the stator.The generation that magnetic part reduces rotor leakage phenomenon is kept off, motor flux density and torque density are improved.
Description
Technical field
The present invention 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.
Summary of the invention
The purpose of the present invention is to provide a kind of motors, can reduce rotor leakage, improve motor flux density and torque is close
Degree.
The embodiment of the present invention is 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 embodiment of the present invention 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
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is structural schematic diagram of the embodiment of the present invention；
Fig. 2 is that this practical new rotor leakage emulates schematic diagram.
Icon: 1- magnet steel；2- keeps off magnetic part.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
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.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, or be somebody's turn to do
Invention product using when the orientation or positional relationship usually put, be merely for convenience of description of the present invention and simplification of the description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and cannot manage
Solution is indication or suggestion 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 is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of 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 present invention is very low, close to space permeability.Magnetic part 2 is kept off to wrap
Two kinds of set-up modes are included, one is replacing magnetic bridge to be arranged on rotor, block the leakage path of motor, another kind is every magnetic
It slots at bridge, as a part of magnetic bridge, achievees the effect that separate motor flux leakage path.Motor flux leakage is reduced, motor is improved
Flux density and torque density.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
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 |
|---|---|---|---|
| CN201811251400.4A CN109510348A (en) | 2018-10-25 | 2018-10-25 | A kind of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811251400.4A CN109510348A (en) | 2018-10-25 | 2018-10-25 | A kind of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109510348A true CN109510348A (en) | 2019-03-22 |
Family
ID=65745919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811251400.4A Pending CN109510348A (en) | 2018-10-25 | 2018-10-25 | A kind of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109510348A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116667567A (en) * | 2023-07-31 | 2023-08-29 | 江苏嘉轩智能工业科技股份有限公司 | Motor rotor and high-speed motor thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100277028A1 (en) * | 2009-04-30 | 2010-11-04 | General Electric Company | High speed internal permanent magnet machine |
| CN105071569A (en) * | 2015-08-19 | 2015-11-18 | 广东威灵电机制造有限公司 | Rotor and motor |
| CN209170072U (en) * | 2018-10-25 | 2019-07-26 | 珠海格力电器股份有限公司 | A kind of motor |
-
2018
- 2018-10-25 CN CN201811251400.4A patent/CN109510348A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100277028A1 (en) * | 2009-04-30 | 2010-11-04 | General Electric Company | High speed internal permanent magnet machine |
| CN105071569A (en) * | 2015-08-19 | 2015-11-18 | 广东威灵电机制造有限公司 | Rotor and motor |
| CN209170072U (en) * | 2018-10-25 | 2019-07-26 | 珠海格力电器股份有限公司 | A kind of motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116667567A (en) * | 2023-07-31 | 2023-08-29 | 江苏嘉轩智能工业科技股份有限公司 | Motor rotor and high-speed motor thereof |
| CN116667567B (en) * | 2023-07-31 | 2023-10-27 | 江苏嘉轩智能工业科技股份有限公司 | Motor rotor and high-speed motor thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190322 |
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| RJ01 | Rejection of invention patent application after publication |