CN107070028A - The permanent magnet machine rotor and motor of a kind of low magnetism leakage - Google Patents
The permanent magnet machine rotor and motor of a kind of low magnetism leakage Download PDFInfo
- Publication number
- CN107070028A CN107070028A CN201710182096.1A CN201710182096A CN107070028A CN 107070028 A CN107070028 A CN 107070028A CN 201710182096 A CN201710182096 A CN 201710182096A CN 107070028 A CN107070028 A CN 107070028A
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- China
- Prior art keywords
- rotor
- support hub
- permanent magnet
- rotor core
- punching
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- 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]
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
A kind of permanent magnet machine rotor of low magnetism leakage, it is characterised in that：Also include the support hub of a non-magnet material, the rotor core is sheathed on the periphery of the support hub, also, the periphery of support hub is provided with multiple clamping convex bodys, and each clamping convex body of correspondence is provided with matching caulking groove in the punching；The clamping convex body is the strip convex tendon extended along rotor axial, and the end portion width of the strip convex tendon on the radial section of rotor is more than its width by the root of support hub side；And, two ends in the axial direction of the rotor core be stacked with non-magnet material every magnetic fastening plates, fastening bolt is equipped with along rotor axial on the position between adjacent magnet steel groove of rotor core, specific fastening bolt is to run through to set and with nut coordinate every magnetic fastening plates every magnetic fastening plates, rotor core to the other end through one end to be fastenedly connected.
Description
Technical field
The present invention relates to motor, and in particular to the permanent magnet machine rotor and motor of a kind of low magnetism leakage.
Background technology
Magneto, refers to that motor uses permanent magnet excitation without using coil excitation, this motor does not have magnetic force winding,
Not only save a large amount of copper and iron materials for making coil so that machine volume is smaller, weight is lighter, additionally it is possible to save magnetizing coil
The electric energy consumed during work, is conducive to improving the electromechanical conversion efficiency of motor.
The rotor of magneto is made up of rotating shaft, rotor core, permanent magnet and additional support, and rotor core is all by rushing
Piece is stacked to be formed, in punching around rotor axle center it is rotationally symmetrical uniformly open up magnet steel groove, permanent magnet is embedded in magnet steel groove, forever
Leakage field is more on the inside of magnet, thus it is general open up magnet isolation tank formation magnetic bridge on the inside of permanent magnet, but there is magnetic flux leakage asking greatly
Topic, this adds increased the input of permanent magnet, making the cost of product increases, volume increase.
The content of the invention
It is an object of the present invention to provide a kind of permanent magnet machine rotor of low magnetism leakage and motor, to drop leakage field with cost declining and contracting
Small size.
To reach above-mentioned purpose, the rotor technology scheme that the present invention is used is：A kind of permanent magnet machine rotor of low magnetism leakage, bag
Rotor core and permanent magnet are included, the rotor core is stacked to by punching, rotated in each punching around the axle center of rotor
It is arranged symmetrically multiple magnet steel grooves for being used to accommodate permanent magnet；Also include the support hub of a non-magnet material, the rotor core
On the periphery for being sheathed on the support hub, an accommodating cavity is left at the center of the support hub；The magnet steel groove is towards support hub
One end open formation fracture；Also, the periphery of support hub is provided with multiple clamping convex bodys, and each clamping of correspondence is convex in the punching
Body is provided with matching caulking groove；The clamping convex body is the strip convex tendon extended along rotor axial, and the strip convex tendon is in rotor
Radial section on end portion width be more than its by support hub side root width；The support hub by each clamping convex body with
The clamping engagement composition of corresponding caulking groove and being fixedly connected for punching in punching；Also, two in the axial direction of the rotor core
End be stacked with non-magnet material every in magnetic fastening plates, the position between adjacent magnet steel groove of rotor core along rotor
Fastening bolt axially is equipped with, specific fastening bolt is every magnetic fastening plates through one end every magnetic fastening plates, rotor core to the other end
It is fastenedly connected through setting and coordinating with nut.
In such scheme, cross sectional shape of the strip convex tendon on rotor radial section is trapezoidal, rectangle or circle.
In such scheme, the support hub is the aluminium section bar of a ring section.
In such scheme, the side of magnet steel groove towards the air gap, which is also interrupted, sets fracture.
In such scheme, the quantity of the fastening bolt is identical with magnet steel slot number amount, i.e., each adjacent on rotor core
Magnet steel groove between respectively set a fastening bolt on position.
To reach above-mentioned purpose, the magneto technical scheme that the present invention is used is：A kind of magneto of low magnetism leakage, bag
Include rotor, the rotor includes rotor core and permanent magnet, and the rotor core is stacked to by punching, in each punching around
The axle center of rotor is in a rotationally symmetrical arrangement multiple magnet steel grooves for being used to accommodate permanent magnet；Also include the support of a non-magnet material
Hub, the rotor core is sheathed on the periphery of the support hub, and an accommodating cavity is left at the center of the support hub；The magnetic
One end open formation fracture of the steel tank towards support hub；Also, the periphery of support hub is provided with multiple clamping convex bodys, and the punching
Upper each clamping convex body of correspondence is provided with matching caulking groove；The clamping convex body is the strip convex tendon extended along rotor axial, should
End portion width of the strip convex tendon on the radial section of rotor is more than its width by the root of support hub side；The support hub is led to
Cross each clamping convex body and the clamping engagement composition of the corresponding caulking groove in punching and being fixedly connected for punching；Also, the rotor iron
Two ends in the axial direction of core be stacked with non-magnet material every magnetic fastening plates, rotor core between adjacent magnet steel groove
Fastening bolt is equipped with position along rotor axial, and specific fastening bolt is to another through one end every magnetic fastening plates, rotor core
One end is fastenedly connected through setting and with nut cooperation every magnetic fastening plates.
In such scheme, cross sectional shape of the strip convex tendon on rotor radial section is trapezoidal, rectangle or circle.
In such scheme, the support hub is the aluminium section bar of a ring section.
In such scheme, the side of magnet steel groove towards the air gap, which is also interrupted, sets fracture.
In such scheme, the quantity of the fastening bolt is identical with magnet steel slot number amount, i.e., each adjacent on rotor core
Magnet steel groove between respectively set a fastening bolt on position.
The principle of the invention and advantage：The center axis in each punching each magnet steel groove towards rotor of the present invention set fracture,
And be also non-magnet material with the support hubs of iron core interior side contacts, so as to interrupt the leakage field loop on the inside of permanent magnet, improve
Leakage reluctance, efficiently reduces leakage field, improves the utilization rate of permanent magnet, so as to reduce the volume that cost reduces rotor.Again
Person, the present invention supports rotor core using support hub, and sets the tight every magnetic of non-magnet material in two axial endlaps of punching
Gu plate, two ends together compress to be fastenedly connected be integrated by fastening bolt and nut every all punchings in magnetic fastening plates and middle part,
Fastening bolt is equipped between each adjacent magnet steel groove, i.e., it is equal to the part between each adjacent magnet steel groove in punching
There is the fixation of fastening bolt, it is ensured that the intensity of rotor, so that suitable for the workplace of high-power and high-speed.
Brief description of the drawings
Fig. 1 is that the spindle portion of internal rotor in the rotor full section schematic diagram of the embodiment of the present invention one, figure is not shown；
Fig. 2 is Fig. 1 left view schematic diagram；
Fig. 3 cuts open schematic diagram for Fig. 1 A-A.
In the figures above：1st, rotor core；11st, punching；111st, magnet steel groove；1111st, fracture；112nd, caulking groove；2nd, permanent magnet；
3rd, support hub；31st, accommodating cavity；32nd, clamping convex body；4th, every magnetic fastening plates；5th, fastening bolt；6th, nut.
Embodiment
Below in conjunction with the accompanying drawings and embodiment the invention will be further described：
Embodiment one：Referring to Fig. 1-Fig. 3：
A kind of permanent magnet machine rotor of low magnetism leakage, including rotating shaft（Not shown in figure）, rotor core 1 and permanent magnet 2, the rotor
Iron core 1 is stacked to by punching 11, in each punching 11 around rotor axle center it is in a rotationally symmetrical arrangement have multiple be used to accommodate forever
The magnet steel groove 111 of magnet 2.
Referring to Fig. 1-Fig. 3, permanent magnet machine rotor also includes the support hub 3 of a non-magnet material, and the rotor core 1 is arranged
In on the periphery of the support hub 3, an accommodating cavity 31 is left at the center of the support hub 3.The magnet steel groove 111 is towards support hub
3 one end open formation fracture 1111.Also, the periphery of support hub 3 is provided with multiple clamping convex bodys 32, and in the punching 11
Each clamping convex body 32 of correspondence is provided with matching caulking groove 112.
Referring to Fig. 1-Fig. 3, the clamping convex body 32 is the strip convex tendon extended along rotor axial, and the strip convex tendon is in rotor
Radial section on end portion width be more than its by the side of support hub 3 root width.The support hub 3 passes through each clamping convex body
32 are constituted and punching 11 is fixedly connected with the clamping engagement of corresponding caulking groove 112 in punching 11.
Also, referring to Fig. 1-Fig. 3, the two ends in the axial direction of the rotor core 1 be stacked with non-magnet material every magnetic
Fastening bolt 5 is equipped with along rotor axial on fastening plates 4, the position between adjacent magnet steel groove 111 of rotor core 1,
Specific fastening bolt 5 is through setting and and nut through one end every magnetic fastening plates 4, rotor core 1 to the other end every magnetic fastening plates 4
6 cooperations are fastenedly connected.
Cross sectional shape of the strip convex tendon on rotor radial section is trapezoidal, rectangle or circle.
The support hub 3 is the aluminium section bar of a ring section.The accommodating cavity 31 of support hub 3 is used to accommodate rotating shaft and each
Plant accessory, such as speed changer, clutch, brake.
The rotating shaft side in each punching 11 each magnet steel groove 111 towards rotor of the present embodiment is all provided with fracture 1111, and and iron
The support hub 3 of in-core side contacts is also non-magnet material, so as to interrupt the leakage field loop of the inner side of permanent magnet 2, improves leakage field
Magnetic resistance, efficiently reduces leakage field, improves the utilization rate of permanent magnet 2, so as to reduce the volume that cost reduces rotor.Also,
Rotor core, and the clamping of each clamping convex body 32 of ingenious utilization and the corresponding caulking groove 112 in punching 11 are supported using support hub 3
Coordinate, support hub 4 is reliably fixedly connected with rotor core 1, rotor strength is so ensure that, so that suitable for high-power high turn
The workplace of speed.
The magnet steel groove 111 can also be interrupted towards the side of air gap sets fracture 1111, so as to interrupt the leakage in the outside of permanent magnet 2
Magnetic loop, eliminates magnetic bridge leakage field.
Embodiment two：
A kind of magneto of low magnetism leakage, including rotor and stator, described in specific rotor structure be the same as Example one, no longer go to live in the household of one's in-laws on getting married here
State.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand present disclosure and implement according to this, and it is not intended to limit the scope of the present invention.It is all according to the present invention
The equivalent change or modification that Spirit Essence is made, should all be included within the scope of the present invention.
Claims (10)
1. a kind of permanent magnet machine rotor of low magnetism leakage, including rotor core and permanent magnet, the rotor core are stacked by punching
Into in a rotationally symmetrical arrangement there are multiple magnet steel grooves for being used to accommodate permanent magnet in the axle center in each punching around rotor；Its feature
It is：Also include the support hub of a non-magnet material, the rotor core is sheathed on the periphery of the support hub, the support
Leave an accommodating cavity in the center of hub；One end open formation fracture of the magnet steel groove towards support hub；Also, the periphery of support hub
Multiple clamping convex bodys are provided with, and each clamping convex body of correspondence is provided with matching caulking groove in the punching；The clamping convex body
For the strip convex tendon extended along rotor axial, the end portion width of the strip convex tendon on the radial section of rotor is more than it by support
The width of the root of hub side；The support hub is made up of and punching each clamping convex body with the clamping engagement of the corresponding caulking groove in punching
Piece is fixedly connected；Also, the two ends in the axial direction of the rotor core be stacked with non-magnet material every magnetic fastening plates, turn
Be equipped with fastening bolt along rotor axial on the position between adjacent magnet steel groove of sub- iron core, specific fastening bolt be through
One end is fastenedly connected through setting and with nut cooperation every magnetic fastening plates, rotor core to the other end every magnetic fastening plates.
2. the permanent magnet machine rotor of low magnetism leakage according to claim 1, it is characterised in that：The strip convex tendon is in rotor radial
Cross sectional shape on section is trapezoidal, rectangle or circle.
3. the permanent magnet machine rotor of low magnetism leakage according to claim 1, it is characterised in that：The support hub is a ring section
Aluminium section bar.
4. the permanent magnet machine rotor of low magnetism leakage according to claim 1, it is characterised in that：The magnet steel groove is towards the side of air gap
Also interrupt and set fracture.
5. the permanent magnet machine rotor of low magnetism leakage according to claim 1, it is characterised in that：The quantity and magnetic of the fastening bolt
Steel tank quantity is identical, i.e., respectively set a fastening bolt on position between each adjacent magnet steel groove on rotor core.
6. a kind of magneto of low magnetism leakage, including rotor, the rotor include rotor core and permanent magnet, the rotor core
It is stacked to by punching, the axle center in each punching around rotor in a rotationally symmetrical arrangement there are multiple magnet steel for being used to accommodate permanent magnet
Groove；It is characterized in that：Also include the support hub of a non-magnet material, the rotor core is sheathed on the periphery of the support hub
On, an accommodating cavity is left at the center of the support hub；One end open formation fracture of the magnet steel groove towards support hub；Also,
The periphery of support hub is provided with multiple clamping convex bodys, and each clamping convex body of correspondence is provided with matching caulking groove in the punching；
The clamping convex body is the strip convex tendon extended along rotor axial, the end portion width of the strip convex tendon on the radial section of rotor
More than its width by the root of support hub side；The support hub passes through clamping of each clamping convex body with the corresponding caulking groove in punching
Cooperation composition is fixedly connected with punching；Also, the two ends in the axial direction of the rotor core are stacked with non-magnet material
Every being equipped with fastening bolt along rotor axial in magnetic fastening plates, the position between adjacent magnet steel groove of rotor core, have
Body fastening bolt is through setting and tight with nut cooperation every magnetic fastening plates every magnetic fastening plates, rotor core to the other end through one end
It is solidly connected.
7. the magneto of low magnetism leakage according to claim 6, it is characterised in that：The strip convex tendon is in rotor radial section
On cross sectional shape be trapezoidal, rectangle or circle.
8. the permanent magnet machine rotor of low magnetism leakage according to claim 6, it is characterised in that：The support hub is a ring section
Aluminium section bar.
9. the permanent magnet machine rotor of low magnetism leakage according to claim 6, it is characterised in that：The magnet steel groove is towards the side of air gap
Also interrupt and set fracture.
10. the permanent magnet machine rotor of low magnetism leakage according to claim 6, it is characterised in that：The quantity of the fastening bolt with
Magnet steel slot number amount is identical, i.e., respectively set a fastening bolt on position between each adjacent magnet steel groove on rotor core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710182096.1A CN107070028B (en) | 2017-03-24 | 2017-03-24 | Permanent magnet motor rotor with low magnetic leakage and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710182096.1A CN107070028B (en) | 2017-03-24 | 2017-03-24 | Permanent magnet motor rotor with low magnetic leakage and motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107070028A true CN107070028A (en) | 2017-08-18 |
| CN107070028B CN107070028B (en) | 2023-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710182096.1A Active CN107070028B (en) | 2017-03-24 | 2017-03-24 | Permanent magnet motor rotor with low magnetic leakage and motor |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111313627A (en) * | 2020-03-03 | 2020-06-19 | 杨帅军 | Rotor iron core |
| CN112087082A (en) * | 2020-09-04 | 2020-12-15 | 东南大学 | Permanent magnet synchronous motor rotor, assembling mode and motor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202524266U (en) * | 2012-02-28 | 2012-11-07 | 珠海格力电器股份有限公司 | Permanent magnet rotor and permanent magnet motor |
| CN206685994U (en) * | 2017-03-24 | 2017-11-28 | 李致真 | The permanent magnet machine rotor and motor of a kind of low magnetism leakage |
-
2017
- 2017-03-24 CN CN201710182096.1A patent/CN107070028B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202524266U (en) * | 2012-02-28 | 2012-11-07 | 珠海格力电器股份有限公司 | Permanent magnet rotor and permanent magnet motor |
| CN206685994U (en) * | 2017-03-24 | 2017-11-28 | 李致真 | The permanent magnet machine rotor and motor of a kind of low magnetism leakage |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111313627A (en) * | 2020-03-03 | 2020-06-19 | 杨帅军 | Rotor iron core |
| CN111313627B (en) * | 2020-03-03 | 2022-03-29 | 安徽博克士电子有限公司 | Rotor iron core |
| CN112087082A (en) * | 2020-09-04 | 2020-12-15 | 东南大学 | Permanent magnet synchronous motor rotor, assembling mode and motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107070028B (en) | 2023-09-12 |
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