CN105978192A - Rotor punching plate, rotor and motor - Google Patents
Rotor punching plate, rotor and motor Download PDFInfo
- Publication number
- CN105978192A CN105978192A CN201610292397.5A CN201610292397A CN105978192A CN 105978192 A CN105978192 A CN 105978192A CN 201610292397 A CN201610292397 A CN 201610292397A CN 105978192 A CN105978192 A CN 105978192A
- Authority
- CN
- China
- Prior art keywords
- magnetic
- rotor
- rotor punching
- conduction sheet
- magnetic shoe
- 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.)
- Granted
Links
- 238000004080 punching Methods 0.000 title claims abstract description 39
- 238000009827 uniform distribution Methods 0.000 claims description 2
- 230000004907 flux Effects 0.000 abstract description 5
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 244000079889 Cymbidium pendulum Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
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]
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a rotor punching plate, a rotor and a motor. The rotor punching plate comprises an annular connecting piece and magnetic conductive sheets uniformly distributed along the circumferential direction of the connecting piece, and magnetic tile grooves are arranged between adjacent magnetic conductive sheets and extend radially along the connecting piece and close to the outer peripheral groove bottom of the connecting piece. First projections are arranged on the groove bottoms and on the periphery of the connecting piece. When magnetic tiles are installed in the magnetic tile grooves, contact area between the magnetic tiles and the connecting piece can be reduced through the first projections, and air gaps between the magnetic tiles and the connecting piece can be further increased. Air gaps between adjacent two magnetic tiles are increased, and the magnetic conductive connection part is reduced, so that magnetic leakage occurrence is greatly reduced. The magnetic property of a rotor employing the rotor punching plate in such a structure is improved, and the magnetic flux area is increased.
Description
Technical field
The present invention relates to technical field of motors, particularly relate to a kind of rotor punching, more specifically to one
Plant the rotor using this rotor punching and the motor comprising this rotor.
Background technology
The structure of the rotor of the most common magneto is surface-mount type structure and built-in tangential structure, relative to
Surface-mount type structure, the rotor of built-in tangential structure can effectively reduce the demagnetization caused by armature-reaction, and increase
Magnetic flux area, can improve the constant power speed range of motor, improves and exist motor while improving performance
Centrifugal force protection when running up.As it is shown in figure 1, this built-in rotor punching includes punching body 1 ',
Arranging the magnetic shoe groove 2 ' of some enclosed constructions on punching body 1 ', each magnetic shoe groove 2 ' is all along punching originally
Radially extending of body 1 ', has the length and width of setting.Owing to magnetic shoe groove 2 ' uses enclosed construction,
Make to connect full by magnetic conductor between the interior magnetic shoe of adjacent two magnetic shoe grooves 2 ', make rotor punching exist further
There is more leakage field during use, reduce the performance of rotor.
Summary of the invention
It is an object of the present invention to provide a kind of rotor punching, its simple in construction, be effectively reduced rotor
Leakage field.
Further object is that a kind of rotor of offer, its leakage field is few, and magnetic property is good, magnetic flux area
Greatly.
A further object of the present invention is to provide a kind of motor, and its leakage field is few, quality better.
For reaching this purpose, the present invention by the following technical solutions:
On the one hand, it is provided that a kind of rotor punching, including connector ringwise with along the circumference of described connector
Equally distributed magnetic conduction sheet, arranges magnetic shoe groove between adjacent described magnetic conduction sheet, described magnetic shoe groove is along described connection
Radially extending of part, and have the bottom land of periphery near described connector, on described bottom land and be positioned at institute
The perimembranous stating connector is provided with the first protuberance.
On the other hand, a kind of rotor is also provided for, including described rotor punching.
Another aspect, also provides for a kind of motor, including described rotor.
The invention have the benefit that rotor punching that the present invention provides can by the first protuberance reduce magnetic shoe with
The contact area of connector, increases the air gap between magnetic shoe and connector, the most adjacent two magnetic further
The air gap between watt increases, and magnetic conduction connecting portion reduces, and greatly reduces the generation of leakage field situation,
Thus improve the magnetic property of the rotor of the rotor punching using this structure, increase magnetic flux area.
Accompanying drawing explanation
Fig. 1 is the structural representation of traditional built-in rotor punching.
Fig. 2 is the structural representation of the rotor punching described in the embodiment of the present invention.
Fig. 3 is the cross-sectional schematic of the rotor punching described in the embodiment of the present invention.
Fig. 4 is the partial structurtes schematic diagram of the rotor punching described in the embodiment of the present invention.
Fig. 5 is the structural representation of the rotor of the rotor punching using the present invention.
In Fig. 1:
1 ', punching body；2 ', magnetic shoe groove.
In Fig. 2 to 5:
1, connector；2, magnetic conduction sheet；21, external arc；3, magnetic shoe groove；4, the first protuberance；5, inner side
Air gap；6, fixed part；7, the second protuberance；8, magnetic shoe.
Detailed description of the invention
Further illustrate technical scheme below in conjunction with the accompanying drawings and by detailed description of the invention.
As shown in Figures 2 to 4, the rotor punching of the embodiment of the present invention includes connector 1 ringwise and along institute
State the equally distributed magnetic conduction sheet of circumference 2 of connector 1, between adjacent described magnetic conduction sheet 2, magnetic shoe groove 3 be set,
Described magnetic shoe groove 3 radially extending along described connector 1, and there is the periphery near described connector 1
Bottom land, on described bottom land and be positioned at the perimembranous of described connector 1 and be provided with the first protuberance 4.
When being provided with magnetic shoe in magnetic shoe groove 3, connecing of magnetic shoe and connector 1 can be reduced by the first protuberance 4
Contacting surface is amassed, and increases the air gap between magnetic shoe and connector 1 further, between the most adjacent two magnetic shoes
The air gap increases, and magnetic conduction connecting portion reduces, and greatly reduces the generation of leakage field situation, thus promotes
Use the magnetic property of the rotor of the rotor punching of this structure, increase magnetic flux area.
In the present embodiment, described connector 1, described magnetic conduction sheet 2 and the first protuberance 4 integrated punching molding.
The most whole rotor punching uses impact style molding.
Further, arranging inner side air gap 5 in described magnetic conduction sheet 2, described inner side air gap 5 is along described connector
1 radially extend, and described inner side air gap 5 connects with described magnetic shoe groove 3 near one end of described connector 1.
By arranging the inner side air gap 5 radially extended along connector 1 in magnetic conduction sheet 2, and make gas inside this
Gap 5 connects with magnetic shoe groove 3, adds the air gap between magnetic shoe and connector 1, further reduces
The generation of leakage field situation.
Concrete, described inner side air gap 5 away from one end of described connector 1 not through described magnetic conduction sheet 2.
Preferably, described magnetic conduction sheet 2 is connected with described connector 1, at described fixed part 6 by fixed part 6
Both sides be provided with described inner side air gap 5, two described inner side air gaps 5 respectively with two adjacent described magnetic
Watt groove 3 connects.
By being respectively provided with in the both sides of fixed part 6 and the inner side air gap 5 of adjacent two magnetic shoe groove 3 connections, can
To ensure between magnetic conduction sheet 2 with adjacent two magnetic shoes of increase tried one's best while the intensity that connector 1 connects
The air gap, reduce leakage field.
In a preferred embodiment of the present invention, described magnetic shoe groove 3 is semi-closed structure, itself and described bottom land
Relative side arranges notch, at the extended line of the external arc 21 that described notch is positioned at described magnetic conduction sheet 2.
By magnetic shoe groove 3 is set to semi-closed structure, the magnetic conduction between adjacent two magnetic shoes can be made to connect
Position is reduced, and further reduces the generation of leakage field situation.
Preferably, external arc 21 both sides of described magnetic conduction sheet 2 are provided with the second protuberance 7, are positioned at same
Two described second protuberances 7 in described magnetic shoe groove 3 are set in distance, and at two described second protuberances 7
Between form described notch.
By arranging two the second protuberances 7 at notch position, it is possible not only to increase between the air between adjacent magnetic shoe
Gap, to reduce leakage field, it is also possible to the first protuberance 4 mating reaction, firm for magnetic shoe is limited in magnetic shoe groove 3
In, effectively prevent magnetic shoe from moving radially in magnetic shoe groove 3.
In a preferred embodiment of the invention, the external arc 21 of described magnetic conduction sheet 2 is eccentric arc
Structure.
By the external arc 21 of magnetic conduction sheet 2 being set to the external arc 21 of eccentric arc structure, i.e. magnetic conduction sheet 2
The center of circle the most concentric with the center of rotor punching (i.e. connector), it is possible to reduce the torque pulsation of rotor, shape
Become the non-uniform gap being prone to produce sine wave magnetic field, the back-emf ripple of motor can be obviously improved, reduce load
Time Cymbidium aloifolium, and then reduce motor torque pulsation.
Preferably, described magnetic conduction sheet 2 is in sector structure, so that the described magnetic between adjacent described magnetic conduction sheet 2
Watt groove 3 is in rectangular configuration.
In a preferred embodiment of the invention, described magnetic conduction sheet 2 is near the side of described magnetic shoe groove 3
It is provided with multiple 3rd protuberance.
By arranging the 3rd protuberance, it is possible to reduce the side of magnetic shoe and the contact area of magnetic conduction sheet 2 so that magnetic
Watt both sides and magnetic conduction sheet 2 between all there is the air gap, reduce leakage field.
Preferably, multiple described 3rd protuberances are along the radially uniform distribution of connector 1.
3rd protuberance of radially even distribution, the active force that can make support magnetic shoe is more uniform.
In a preferred embodiment of the invention, the width of described magnetic shoe groove 3 and the thickness of described magnetic shoe
Matching, the width of described first protuberance 4 is not more than 1/3rd of the width of described magnetic shoe groove 3, is positioned at
The spacing between two described second protuberances 7 in same described magnetic shoe groove 3 and the width of described magnetic shoe groove 3
The difference of degree is not less than 5mm, and the length of described inner side air gap 5 is not less than the half of the external arc 21 of described magnetic conduction sheet 2
/ 6th of footpath.
Concrete, the width of described magnetic shoe groove 3 and the thickness of described magnetic shoe are L1, described first protuberance 4
Width is L2, and the spacing between two described second protuberances 7 in same described magnetic shoe groove 3 is L3,
The a length of L4 of described inner side air gap 5, the radius of the external arc 21 of described magnetic conduction sheet 2 is R.
Preferably, L2=L1*1/3, L3=L1-(2mm～3mm)；L4=R*1/5.
By being matched with the thickness of magnetic shoe by the width of magnetic shoe groove 3, magnetic shoe groove 3 can be encased at magnetic shoe
Time interior, prevent magnetic shoe groove 3 in tangential direction from rocking, to increase the fixation to magnetic shoe, and convex by first
The width in portion 4 is set to 1/3rd of the width of magnetic shoe groove 3, then be to increase between air as far as possible
First protuberance 4 support strength to magnetic shoe is ensured while gap.
Embodiments of the invention additionally provide a kind of rotor, including rotor punching as above, rotor punching
Structure can refer to Fig. 2 to 4 and above-described embodiment, here is omitted.As it is shown in figure 5, rush at rotor
Being provided with magnetic shoe 8 in the magnetic shoe groove 3 of sheet, magnetic shoe 8 is near the top of one end of connector 1 Yu the first protuberance 4
Abutting, the other end is limited by two the second protuberances 7 respectively.
In a preferred embodiment of the invention, the both sides of magnetic shoe 8 can also arrange protuberance, to reduce
Magnetic shoe 8 and the contact area of magnetic conduction sheet 2, and then between magnetic shoe 8 and magnetic conduction sheet 2, form more air
Gap.
Embodiments of the invention additionally provide a kind of motor, including rotor as above.The structure of rotor can
With reference to Fig. 5 and above-described embodiment, here is omitted.
The know-why of the present invention is described above in association with specific embodiment.These describe and are intended merely to explain this
The principle of invention, and limiting the scope of the invention can not be construed to by any way.Based on herein
Explaining, those skilled in the art need not pay performing creative labour can associate other tool of the present invention
Body embodiment, within these modes fall within protection scope of the present invention.
Claims (10)
1. a rotor punching, it is characterised in that include connector ringwise and the week along described connector
To equally distributed magnetic conduction sheet, arranging magnetic shoe groove between adjacent described magnetic conduction sheet, described magnetic shoe groove is along described company
Radially extending of fitting, and have the bottom land of periphery near described connector, on described bottom land and be positioned at
The perimembranous of described connector is provided with the first protuberance.
Rotor punching the most according to claim 1, it is characterised in that inner side is set in described magnetic conduction sheet
Air gap, described inner side air gap radially extending along described connector, and described inner side air gap is near described connection
One end of part connects with magnetic shoe groove.
Rotor punching the most according to claim 2, it is characterised in that described magnetic conduction sheet passes through fixed part
It is connected with described connector, is provided with described inner side air gap in the both sides of described fixed part, in two described
Side air gap connects with two adjacent described magnetic shoe grooves respectively.
Rotor punching the most according to claim 2, it is characterised in that described magnetic shoe groove is semiclosed knot
Structure, its side relative with described bottom land arranges notch, and described notch is positioned at the external arc of described magnetic conduction sheet
At extended line.
Rotor punching the most according to claim 4, it is characterised in that the external arc two of described magnetic conduction sheet
Side is provided with the second protuberance, and two described second protuberances being positioned at same described magnetic shoe groove are that interval sets
Put, and form described notch between two described second protuberances.
Rotor punching the most according to claim 5, it is characterised in that the external arc of described magnetic conduction sheet is
Eccentric arc structure.
7. according to the rotor punching described in any one of claim 1 to 6, it is characterised in that described magnetic conduction sheet
The side of described magnetic shoe groove is provided with multiple 3rd protuberance.
Rotor punching the most according to claim 7, it is characterised in that multiple described 3rd protuberances are along even
The radially uniform distribution of fitting.
9. a rotor, it is characterised in that include the rotor punching as described in any one of claim 1 to 8.
10. a motor, it is characterised in that include rotor as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610292397.5A CN105978192B (en) | 2016-05-05 | 2016-05-05 | A kind of rotor punching, rotor and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610292397.5A CN105978192B (en) | 2016-05-05 | 2016-05-05 | A kind of rotor punching, rotor and motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105978192A true CN105978192A (en) | 2016-09-28 |
| CN105978192B CN105978192B (en) | 2018-11-13 |
Family
ID=56991109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610292397.5A Active CN105978192B (en) | 2016-05-05 | 2016-05-05 | A kind of rotor punching, rotor and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105978192B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107231048A (en) * | 2017-08-03 | 2017-10-03 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor, embedded rotor, rotor core and its rotor punching |
| CN109818439A (en) * | 2017-11-22 | 2019-05-28 | 大银微系统股份有限公司 | The rotor of rotating electric machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201726214U (en) * | 2010-05-09 | 2011-01-26 | 天津市松正电动科技有限公司 | High-air gap flux density permanent magnet motor or generator stator |
| 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 |
| CN102931795A (en) * | 2011-08-11 | 2013-02-13 | 中山大洋电机制造有限公司 | Motor structure |
| CN104254963A (en) * | 2012-05-02 | 2014-12-31 | 罗伯特·博世有限公司 | Positioning a permanent magnet in a rotor or stator |
| CN205753714U (en) * | 2016-05-05 | 2016-11-30 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of rotor punching, rotor and motor |
-
2016
- 2016-05-05 CN CN201610292397.5A patent/CN105978192B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201726214U (en) * | 2010-05-09 | 2011-01-26 | 天津市松正电动科技有限公司 | High-air gap flux density permanent magnet motor or generator stator |
| CN102931795A (en) * | 2011-08-11 | 2013-02-13 | 中山大洋电机制造有限公司 | Motor structure |
| 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 |
| CN104254963A (en) * | 2012-05-02 | 2014-12-31 | 罗伯特·博世有限公司 | Positioning a permanent magnet in a rotor or stator |
| CN205753714U (en) * | 2016-05-05 | 2016-11-30 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of rotor punching, rotor and motor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107231048A (en) * | 2017-08-03 | 2017-10-03 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor, embedded rotor, rotor core and its rotor punching |
| CN107231048B (en) * | 2017-08-03 | 2023-05-23 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor, embedded rotor, rotor core and rotor punching sheet thereof |
| CN109818439A (en) * | 2017-11-22 | 2019-05-28 | 大银微系统股份有限公司 | The rotor of rotating electric machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105978192B (en) | 2018-11-13 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20181012 Address after: 519070, Jinji Hill Road, front hill, Zhuhai, Guangdong Applicant after: GREE ELECTRIC APPLIANCES,Inc.OF ZHUHAI Address before: 519070 science and technology building, 789 Jinji Road, Qianshan, Zhuhai, Guangdong Applicant before: GREE GREEN REFRIGERATION TECHNOLOGY CENTER Co.,Ltd. OF ZHUHAI |
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| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |