CN205945294U - Permanent -magnetic synchronous motor rotor - Google Patents
Permanent -magnetic synchronous motor rotor Download PDFInfo
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- CN205945294U CN205945294U CN201620969123.0U CN201620969123U CN205945294U CN 205945294 U CN205945294 U CN 205945294U CN 201620969123 U CN201620969123 U CN 201620969123U CN 205945294 U CN205945294 U CN 205945294U
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- magnet steel
- iron core
- permanent
- synchronous motor
- motor rotor
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Abstract
The utility model relates to a permanent -magnetic synchronous motor rotor, cylindrical iron core adorn admittedly in the pivot, cooperate the M piece tile shape magnet steel N S utmost point alternately at the equal cloth piece dress in iron core surface with indisputable core outside surface. There is the less shoulder of the thickness of step the magnet steel both sides. There is the M root cross section of generating line direction iron core cylinder side for the sand grip of T shape, and the magnet steel inserts between two sand grips from iron core one end, and the T of sand grip shape roof pressure is at the shoulder of magnet steel, the radial displacement of restriction magnet steel, and the magnet steel is fixed at rotor core surperficially. The rand is fixed in the both ends of iron core and magnet steel with annular end cover, and the axial displacement of restriction magnet steel realizes the fixed of magnet steel. The utility model discloses need not to cramp the part, also need not to bond, the iron core sand grip fixes the magnet steel on the rotor core surface steadily, the iron core is hugged closely to the magnet steel, and the clearance is minimum, and the magnetic leakage is less, and the magnet steel utilization ratio improves, the zero clearance that closely cooperates between magnet steel and the iron core is fixed, it is easy to make, assembles simple and conveniently.
Description
Technical field
This utility model is related to magneto manufacturing technology, specially a kind of permanent-magnetic synchronous motor rotor.
Background technology
Permagnetic synchronous motor is because its power density is big, torque density is high, and energy-efficient obtains increasingly extensive application.
The rotor structure of permagnetic synchronous motor is：Iron core is installed in rotating shaft, and tile-shaped magnet steel is fixedly installed in iron core surface.
Rotor speed is big, particularly large-size machine, and root diameter increases, and the centrifugal force that its peripheral magnet steel is subject to is bigger.
With the impact of electromagnetic torque, once magnet steel gets rid of to take off causes motor accident.Therefore the structure of rotor is permagnetic synchronous motor manufacture
One of important content of research.
Magneto industry fixed rotor magnet steel mainly has three kinds of modes at present：
The first, embedded, magnet steel is embedded in hole or the groove of iron core, the magnet steel that this mode is installed get rid of de- possible minimum,
But there is magnet short-cut path problem, leakage field is big, and magnet steel utilization rate is low.And due to mismachining tolerance, unavoidably exist between magnet steel and iron core
Gap, although inserting adhesive, under the electromagnetic torque of longtime running impacts, magnet steel is fragile.
Magnet steel is fixed on the outer surface of cylinder iron core by second, cranse formula with banding cranse or bowl formula cranse, but hoop
The metal level that circle is formed on magnet steel surface can be because of eddy-current heating, and the pulling force that cranse is born is much larger than centrifugal force, and cranse is normal
It is pulled off, " embracing " does not live magnet steel, causes " sweeping hall " (rotor and stator inner circle phase grazing), damage motor；
The third, adhesive type, with adhesive, magnet steel is bonded at iron core surface, the requirement to glue is very high, not only will hold
Long bonding force, and require there is weatherability it is difficult to obtain to this 2 points all guaranteed adhesive.So planting magnet steel fixing meanss
It is generally used for little micro machine.
Other than these three, also have using advanced new material, such as celion etc. binds magnetic in the form of being wound around
Steel.But binding material to take motor gas-gap, and material cost and processing cost all higher.
In a word, the fixing attachment of the magnet steel on current permanent-magnetic synchronous motor rotor iron core surface not yet has preferable solution party
Case.
Utility model content
The purpose of this utility model is to design a kind of permanent-magnetic synchronous motor rotor, outside the tile-shaped magnet steel matching with iron core
The shoulder of the both sides step on surface, the thickness of shoulder is less than magnet steel body, and there is the raised line of generatrix direction the side of cylinder iron core,
The cross section of raised line is T-shaped, and magnet steel inserts between two raised lines from iron core one end, and the T-shaped top pressure of raised line, in the shoulder of magnet steel, is incited somebody to action
Magnet steel is fixed on rotor core surface, without banding part, without bonding, assembles simple and convenient.
A kind of permanent-magnetic synchronous motor rotor of this utility model design, including rotating shaft, the cylinder that is installed in rotating shaft
Iron core, M block tile-shaped magnet steel is matched with core exterior surface, and M is 4～20 even number, and the N pole of magnet steel and S pole are alternately in iron core
Surface uniformly mounts, and the bus of described magnet steel is parallel with the bus of iron core cylinder, the length phase of the length of described magnet steel and iron core
Deng.There is the shoulder of step magnet steel both sides of the present utility model, and the thickness of shoulder is less than magnet steel body thickness.The cylindrical side of iron core
There is the M root raised line of generatrix direction in face, and the cross section of raised line is T-shaped, and magnet steel inserts between two raised lines from iron core one end, raised line
T-shaped top pressure, in the shoulder of magnet steel, limits the radial displacement of magnet steel, and magnet steel is fixed on rotor core surface.Collar in rotating shaft
Annular end cap is fixed on the two ends of iron core and magnet steel, limits the axial displacement of magnet steel, realize the fixation of magnet steel.
The shoulder width L of described magnet steel is 1mm～5mm, and the shoulder of described magnet steel is 88 °～92 ° with the angle of magnet steel main body.
The thickness of described magnet steel, that is, the distance of magnet steel surfaces externally and internally is D, and the thickness d of magnet steel shoulder is (D/2)～(2D/
3).
Described iron core raised line lower width, the width h that is, section T-shaped one is erected is 1mm～6mm, the height that section T-shaped one is erected
For d.
Described h is the interval of adjacent magnet steel, iron core cylinder Zhou Changwei S, inner surface arc length s=(the S/M)-h of every block of magnet steel.
Described iron core raised line upper width, that is, the width H of section T-shaped one horizontal stroke is 2L+h.
Described iron core raised line upper thickness, that is, the height a of section T-shaped one horizontal stroke is 1mm～4mm, and a+d≤D.
There is chamfering described iron core raised line top both sides, and that is, the top of section T-shaped one horizontal stroke becomes umbrella shape.
Compared with prior art, a kind of advantage of permanent-magnetic synchronous motor rotor of this utility model is：1st, without banding part,
Without bonding, using iron core raised line T-shaped top pressure in the shoulder of magnet steel, limit the radial displacement of magnet steel, magnet steel is by stably solid
It is scheduled on rotor core surface；2nd, iron core is close to by magnet steel, and gap is minimum therebetween, and leakage field is less, and magnet steel utilization rate improves；3rd, ferrum
The circumferential elastic tubular tolerance of core raised line, makes tight fit gapless between magnet steel and iron core fix；4th, iron core raised line and magnet steel
Shoulder only needs standard machinery processing can complete, and during installation, magnet steel inserts between its raised line by iron core end face, easy to manufacture, assembling
Simple and convenient.
Brief description
Fig. 1 is this permanent-magnetic synchronous motor rotor embodiment side structure schematic view；
Fig. 2 is the transversal schematic diagram of this permanent-magnetic synchronous motor rotor embodiment；
Fig. 3 is the enlarged diagram of certain raised line and magnet steel binding site in Fig. 2.
In figure is numbered：
1st, rotating shaft, 2, baffle plate, 3, iron core, 31, raised line, 4, magnet steel, 41, shoulder 41.
Specific embodiment
Below according to embodiment and its accompanying drawing, this utility model is further described.
This permanent-magnetic synchronous motor rotor embodiment as shown in Figures 1 to 3, including rotating shaft 1, the cylinder that is installed in rotating shaft 1
Iron core 3, the magnet steel 4 of 6 pieces of shoe is matched with iron core 3 outer surface, and the N pole of magnet steel 4 and S pole are alternately uniform on iron core 3 surface
Attachment；The bus of this example magnet steel 4 is parallel with the bus of iron core 3 cylinder, the equal length of the length of this example magnet steel 4 and iron core 3, this
The thickness D=4.5mm of example magnet steel 4.There is the shoulder 41 of step the both sides of this example magnet steel 4, and the wide L of this example shoulder 41 is 2.5mm,
Thickness d=2D/3=2.3mm, magnet steel 4 shoulder 41 is 90 ° with the angle of magnet steel 4 main body.
The cylindrical side of this example iron core 3 has 6 raised lines 31 of generatrix direction, and the cross section of raised line 31 is T-shaped, this example raised line
31 lower width, the width h that is, section T-shaped one is erected is 3mm.H is the interval of adjacent magnet steel 4, iron core 3 cylinder Zhou Changwei S, every piece
Inner surface arc length s=(the S/M)-h of magnet steel 4.The height that section T-shaped one is erected is d=2.3mm, identical with magnet steel 4 Shoulder thickness.
This example iron core 3 raised line 31 upper width, that is, the width H of section T-shaped one horizontal stroke is 9mm, and raised line 31 upper thickness cuts
The height a of face T-shaped one horizontal stroke is 1.1mm, and a+d=3.4mm.
There is chamfering this example iron core 3 raised line 31 top both sides, and that is, the top of section T-shaped one horizontal stroke becomes umbrella shape.
This example magnet steel 4 inserts between two raised lines 31 from iron core 3 one end, and the T-shaped top pressure of raised line 31 is in the shoulder of magnet steel 4
41, limit the radial displacement of magnet steel, magnet steel 4 is fixed on rotor core 3 surface；Collar in rotating shaft 1 is solid by annular end cap 2
Due to the two ends of iron core 3 and magnet steel 4, limit the axial displacement of magnet steel.
Above-described embodiment, only further describes to the purpose of this utility model, technical scheme and beneficial effect
Specific case, this utility model is not limited to this.All any modifications made within scope of disclosure of the present utility model,
Equivalent, improvement etc., are all contained within protection domain of the present utility model.
Claims (9)
1. a kind of permanent-magnetic synchronous motor rotor, including rotating shaft (1), the cylinder-shaped iron core (3) that is installed in rotating shaft (1), M block shoe
Magnet steel (4) match with iron core (3) outer surface, M is 4～20 even number, and the N pole of magnet steel (4) and S pole are alternately in iron core
(3) surface uniformly mounts；The bus of described magnet steel (4) is parallel with the bus of iron core (3) cylinder, the length of described magnet steel (4) with
The equal length of iron core (3)；It is characterized in that：
There is the shoulder (41) of step the both sides of described magnet steel (4), and the thickness of its shoulder (41) is less than magnet steel (4) body thickness；
The cylindrical side of iron core (3) has M root raised line (31) of generatrix direction, and the cross section of raised line (31) is T-shaped, and magnet steel (4) is from iron core
(3) one end is inserted between two raised lines (31), the T-shaped top pressure of raised line (31) shoulder (41) in magnet steel (4), and magnet steel (4) is consolidated
It is scheduled on rotor core (3) surface；Annular end cap (2) is fixed on the two of iron core (3) and magnet steel (4) by the collar in rotating shaft (1)
End.
2. permanent-magnetic synchronous motor rotor according to claim 1 it is characterised in that：
Shoulder (41) the width L of described magnet steel (4) is 1mm～5mm.
3. permanent-magnetic synchronous motor rotor according to claim 2 it is characterised in that：
The shoulder (41) of described magnet steel (4) and the angle of magnet steel (4) main body are 88 °～92 °.
4. permanent-magnetic synchronous motor rotor according to claim 1 it is characterised in that：
The thickness of described magnet steel (4), that is, the distance of magnet steel (4) surfaces externally and internally is D, and the thickness d of magnet steel (4) shoulder (41) is (D/
2)～(2D/3).
5. permanent-magnetic synchronous motor rotor according to claim 1 it is characterised in that：
Raised line 31 lower width of described iron core (3), the width h that is, section T-shaped one is erected is 1mm～6mm；Section T-shaped one is erected
It is highly d.
6. permanent-magnetic synchronous motor rotor according to claim 5 it is characterised in that：
Described h is the interval of adjacent magnet steel (4), iron core (3) cylinder Zhou Changwei S, the inner surface arc length s=(S/ of every piece of magnet steel (4)
M)-h.
7. permanent-magnetic synchronous motor rotor according to claim 1 it is characterised in that：
Described iron core (3) raised line (31) upper width, that is, the width H of section T-shaped one horizontal stroke is 2L+h.
8. permanent-magnetic synchronous motor rotor according to claim 1 it is characterised in that：
Described iron core (3) raised line (31) upper thickness, that is, the height a of section T-shaped one horizontal stroke is 1mm～4mm, and a+d≤D.
9. permanent-magnetic synchronous motor rotor according to claim 8 it is characterised in that：
There is chamfering described iron core (3) raised line (31) top both sides, and that is, the top of section T-shaped one horizontal stroke becomes umbrella shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620969123.0U CN205945294U (en) | 2016-08-29 | 2016-08-29 | Permanent -magnetic synchronous motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620969123.0U CN205945294U (en) | 2016-08-29 | 2016-08-29 | Permanent -magnetic synchronous motor rotor |
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| Publication Number | Publication Date |
|---|---|
| CN205945294U true CN205945294U (en) | 2017-02-08 |
Family
ID=57952952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620969123.0U Active CN205945294U (en) | 2016-08-29 | 2016-08-29 | Permanent -magnetic synchronous motor rotor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160288A (en) * | 2016-08-29 | 2016-11-23 | 桂林星辰科技股份有限公司 | A kind of permanent-magnetic synchronous motor rotor |
| CN107332378A (en) * | 2017-08-25 | 2017-11-07 | 苏州德迈科电机技术有限公司 | Permanent magnet synchronous servo motor rotor magnetic steel Surface Mount fixed structure |
| CN109713820A (en) * | 2018-12-24 | 2019-05-03 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | A kind of oil immersed type magneto |
-
2016
- 2016-08-29 CN CN201620969123.0U patent/CN205945294U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160288A (en) * | 2016-08-29 | 2016-11-23 | 桂林星辰科技股份有限公司 | A kind of permanent-magnetic synchronous motor rotor |
| CN107332378A (en) * | 2017-08-25 | 2017-11-07 | 苏州德迈科电机技术有限公司 | Permanent magnet synchronous servo motor rotor magnetic steel Surface Mount fixed structure |
| CN109713820A (en) * | 2018-12-24 | 2019-05-03 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | A kind of oil immersed type magneto |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |