CN204068476U - A kind of rotor of magneto - Google Patents
A kind of rotor of magneto Download PDFInfo
- Publication number
- CN204068476U CN204068476U CN201420551035.XU CN201420551035U CN204068476U CN 204068476 U CN204068476 U CN 204068476U CN 201420551035 U CN201420551035 U CN 201420551035U CN 204068476 U CN204068476 U CN 204068476U
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- Prior art keywords
- permanent magnets
- iron core
- rotor
- fin
- groove
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 68
- 239000000463 material Substances 0.000 claims abstract description 8
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- 230000000694 effects Effects 0.000 abstract description 8
- 230000017525 heat dissipation Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 238000004804 winding Methods 0.000 description 8
- 230000005284 excitation Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000001464 adherent effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000005662 electromechanics Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model provides a kind of rotor of magneto, belongs to field of electrical equipment.The rotor of this magneto, comprise iron core, the through hole that power supply machine rotating shaft is inserted is offered in iron core, the outer wall of iron core have several along iron mandrel to the groove arranged, one place's inwall of groove has screwed hole, have in groove with groove match and in the permanent magnets of strip, through hole is offered along its length in permanent magnets, the friction tight fixed axis with through hole is equipped with in through hole, fixed axis adopts plastic material to make, one end of fixed axis has screw thread, the other end of fixed axis has guide vane end stop, side and the permanent magnets of guide vane end stop fit tightly, there is between permanent magnets and the outer wall of iron core curved fin, fin one end is fixed in permanent magnets, the other end of fin fits in iron core outer wall, the outer wall of guide vane end stop has anti-skidding burr.The rotor connective stability of this magneto is high, good heat dissipation effect.
Description
Technical field
the utility model belongs to field of electrical equipment, relates to a kind of rotor of magneto.
Background technology
compared with electro-magnetic motor, it is simple that magneto, particularly rare-earth permanent-magnet electric machine have structure, reliable; Volume is little, and quality is light; Loss is little, and efficiency is high; The shape and size of motor versatile and flexiblely can wait remarkable advantage, and thus range of application is very extensive, almost throughout the every field of Aero-Space, national defence, industrial or agricultural and product and daily life.
magneto is also known as permagnetic synchronous motor, compared with common electro-magnetic motor, below for three phase alternating current motor, its stationary part is identical with the stator in three phase alternating current motor, be the stator winding composition that three is 120 degree, rotor portion, three phase alternating current motor has rotor windings on iron core, by the mode of electric excitation, rotor is rotated, and the rotor of magneto does not possess rotor windings, the rotation of rotor is realized by the rotor be made up of permanent magnet, this rotor no longer needs external energy just can set up very strong permanent-magnetic field after magnetizing, be used for the electric exciting field of alternative conventional motors, magneto not only efficiency is high, and structure is simple, reliable, also can accomplish that volume is little, lightweight.Both can reach the incomparable high-performance of traditional electrical excitation electromotor (as extra-high effect, ultrahigh-speed, extra-high response speed), the specific type of electric machine that can meet specific run requirement can have been made again, as elevator hoisting motor, automobile specified motor etc.Magneto combines with power electronic technology and Control Technique of Microcomputer, more makes the performance of motor and drive system bring up to a brand-new level.Thus improve performance and the level of supporting technical equipment, be the important development direction of electromechanics trade industry restructuring.
but the rotor matrix of existing magneto is iron core, and permanent magnet is increased on iron core, present increase mode has adherent and plug-in type, adherent adopts viscosity glue energy material to make, and permanent magnet is sticky to be posted on iron core, this kind of mode rotor service life of making, facilitation glue came off long afterwards, and also easily come off produce high temperature in the continual work of motor after, current plug-in type carries out clamping by offering the groove matched with permanent magnet on iron core, this mode Problems existing is easily in the work of machine operation, permanent magnet easily throws away, and because most permanent magnet is all positioned at core interior, radiating effect is poor, easily make permanent magnet reach point in office and occur the generation of magnet loss phenomenon.
Summary of the invention
the purpose of this utility model is for the above-mentioned problems in the prior art, provide a kind of rotor of magneto, the rotor connective stability of this magneto is high, good heat dissipation effect, the rotor solving existing magneto connects insecure, easily throw away, delete the problem that magnet loss phenomenon easily occurs thermal effect difference.
the purpose of this utility model realizes by following technical proposal: a kind of rotor of magneto, comprise cylindrical iron core, the through hole that power supply machine rotating shaft is inserted is offered in described iron core, it is characterized in that, the outer wall of described iron core have several along described iron mandrel to the groove arranged, described groove offer direction be parallel to described iron mandrel to, one place's inwall of described groove has screwed hole, have in described groove with described groove match and in the permanent magnets of strip, through hole is offered along its length in described permanent magnets, fixed axis friction tight with described through hole is equipped with in described through hole, described fixed axis adopts plastic material to make, one end of described fixed axis has screw thread, this end of described fixed axis is spirally connected by screwed hole and described iron core and is connected, the other end of described fixed axis has cylindrical guide vane end stop, side and the described permanent magnets of described guide vane end stop fit tightly, between the outer wall of described permanent magnets and described iron core, there is curved fin, described fin fits in described iron core outer wall, described fin one end is fixed in described permanent magnets, the other end of described fin fits in described iron core outer wall, the outer wall of described guide vane end stop has anti-skidding burr.
permanent magnets is placed in groove, by fixed axis at axial restraint, permanent magnets is adsorbed in iron core and realizes circumferential fixing, and permanent magnets is firmly connected with iron core, there will not be phenomenon permanent magnets thrown away, the guide vane end stop on fixed axis limits permanent magnets axial motion.And when needing permanent magnets to take off, can guide vane end stop be acted on, be outwarded winding by anti-skidding burr, because fixed axis is that plastic material is made, in the process of installation and removal, magnetic action can not be produced with iron core and permanent magnets, thus installing/dismounting is made troubles.In the process of work, because the most position of permanent magnets is all positioned at iron core, easily cause heat radiation bad, be connected by fin and permanent magnets, the temperature conduction that permanent magnets is produced is dispelled the heat to fin, the temperature of permanent magnets is reduced rapidly, there will not be permanent magnets loss of excitation.And fin is close on the outer wall of iron core, in machine operation process, interference effect can not be had, good stability to the magnetic field that stator winding produces.
in the rotor of above-mentioned a kind of magneto, described groove is dovetail groove and described groove is outwards reducing shape, and described permanent magnets is dovetail shaped.
in the process that iron core rotates, permanent magnets has the trend be thrown out of, and by dovetail groove outwards to be arranged the connective stability can strengthening permanent magnets further in reducing shape, realizes circumference stable.
in the rotor of above-mentioned a kind of magneto, described each permanent magnets has 2 fin, one end of described fin is connected in the both sides at described permanent magnets minimum widith place.
this kind of connected mode can realize the seamless link of fin and iron core, and fin is fitted tightly on the outer wall of iron core.
in the rotor of above-mentioned a kind of magneto, described number of recesses is 8 and is uniformly distributed, and the quantity of described permanent magnets is 4 and the distribution in interleaved.
can increase permanent magnets by vacant groove at any time and strengthen magnetic field, in actual body is produced, can increase permanent magnets according to actual conditions, it is thorough to consider.
in the rotor of above-mentioned a kind of magneto, described fin is made up of soft magnet.
soft magnet can strengthen the magnetic of rotor, and soft magnet can adsorb iron core can be out of shape thus fit tightly on iron core outer wall.Further enhancing the stability of rotor.
compared with prior art, the rotor of this magneto has the following advantages:
1, the rotor of this magneto is by dovetail groove, and the combination of permanent magnets and fixed axis makes rotor connective stability high, can not when rotor turns, and permanent magnets is thrown out of.
, this magneto rotor permanent magnets on be provided with fin, the heat that permanent magnets is produced is dispelled the heat by fin, and permanent magnets magnet loss phenomenon can not occur.
, this magneto rotor iron core on be provided with multiple groove, can add permanent magnets as required to change the intensity in magnetic field, design is considered comprehensively.
, this magneto the fin of rotor be made up of soft magnet, soft magnet can strengthen the magnetic of rotor, and soft magnet can adsorb iron core can be out of shape thus fit tightly on iron core outer wall.Further enhancing the stability of rotor.
, this magneto one end of fixed axis of rotor be provided with guide vane end stop, guide vane end stop limits permanent magnets axial motion.And when needing permanent magnets to take off, can guide vane end stop be acted on, be outwarded winding by anti-skidding burr, design ingenious.
, this magneto the fixed axis of rotor adopt plastic material to make, in the process of installation and removal, magnetic action can not be produced with iron core and permanent magnets, thus make to tear open and turn convenient and strength-saving.
Accompanying drawing explanation
fig. 1 is the structural blast figure of the rotor of this magneto.
fig. 2 is the vertical view of the rotor of this magneto.
fig. 3 is the permanent magnets of the rotor of this magneto and the structural representation of fin.
in figure, 1, iron core; 1a, through hole; 1b, groove; 1c, screwed hole; 2, permanent magnets; 2a, through hole; 3, fixed axis; 3a, guide vane end stop; 3a1, anti-skidding burr; 4, fin.
Embodiment
as shown in Figure 1 to Figure 3, the rotor of this magneto, comprise cylindrical iron core 1, the through hole 1a that power supply machine rotating shaft is inserted is offered in iron core 1, the outer wall of iron core 1 has the groove 1b that several are axially arranged along iron core 1, groove 1b offers direction and is parallel to iron core 1 axially, one place's inwall of groove 1b has screwed hole 1c, have in groove 1b match with groove 1b and in the permanent magnets 2 of strip, through hole 2a is offered along its length in permanent magnets 2, the friction tight fixed axis 3 with through hole 1a is equipped with in through hole 2a, fixed axis 3 adopts plastic material to make, one end of fixed axis 3 has screw thread, this end of fixed axis 3 is spirally connected by screwed hole 1c and iron core 1 and is connected, the other end of fixed axis 3 has cylindrical guide vane end stop 3a, side and the permanent magnets 2 of guide vane end stop 3a fit tightly, there is between the outer wall of permanent magnets 2 and iron core 1 curved fin 4, fin 4 fits in iron core 1 outer wall, fin 4 one end is fixed in permanent magnets 2, the other end of fin 4 fits in iron core 1 outer wall, the outer wall of guide vane end stop 3a has anti-skidding burr 3a1.
permanent magnets 2 is placed in groove 1b, by fixed axis 3 at axial restraint, permanent magnets 2 is adsorbed in iron core 1 and realizes circumferential fixing, and permanent magnets 2 can be firmly connected with iron core 1, there will not be phenomenon permanent magnets 2 thrown away, the guide vane end stop 3a on fixed axis 3 limits permanent magnets 2 axial motion.And when needing permanent magnets 2 to take off, guide vane end stop 3a can be acted on, be outwarded winding by anti-skidding burr 3a1, because fixed axis 3 is that plastic material is made, in the process of installation and removal, magnetic action can not be produced with iron core 1 and permanent magnets 2, thus installing/dismounting is made troubles.In the process of work, because the most position of permanent magnets 2 is all positioned at iron core 1, easily cause heat radiation bad, be connected by fin 4 and permanent magnets 2, the temperature conduction that permanent magnets 2 is produced is dispelled the heat to fin 4, the temperature of permanent magnets 2 is reduced rapidly, there will not be permanent magnets 2 loss of excitation.And fin 4 is close on the outer wall of iron core 1, in machine operation process, interference effect can not be had, good stability to the magnetic field that stator winding produces.
groove 1b is dovetail groove and groove 1b is outwards reducing shape, and permanent magnets 2 is in dovetail shaped.In the process that iron core 1 rotates, permanent magnets 2 has the trend be thrown out of, and by dovetail groove outwards to be arranged the connective stability can strengthening permanent magnets 2 further in reducing shape, realizes circumference stable.
as shown in Figures 2 and 3, each permanent magnets 2 has 2 fin 4, one end of fin 4 is connected in the both sides at permanent magnets 2 minimum widith place.This kind of connected mode can realize fin 4 and the seamless link of iron core 1, makes fin 4 can fit tightly on the outer wall of iron core 1.
as shown in Figure 2, groove 1b quantity is 8 and is uniformly distributed, and the quantity of permanent magnets 2 is 4 and the distribution in interleaved.Can increase permanent magnets 2 by vacant groove 1b at any time and strengthen magnetic field, in actual body is produced, can increase permanent magnets 2 according to actual conditions, it is thorough to consider.
fin 4 is made up of soft magnet.Soft magnet can strengthen the magnetic of rotor, and soft magnet can adsorb iron core 1 can be out of shape thus fit tightly on iron core 1 outer wall.Further enhancing the stability of rotor.
the rotor connective stability of this magneto is high, good heat dissipation effect, and permanent magnets 2 can not be thrown out of, and magnet loss phenomenon can not occur.
specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Claims (5)
1.
a kind of rotor of magneto, comprise cylindrical iron core, the through hole that power supply machine rotating shaft is inserted is offered in described iron core, it is characterized in that, the outer wall of described iron core have several along described iron mandrel to the groove arranged, described groove offer direction be parallel to described iron mandrel to, one place's inwall of described groove has screwed hole, have in described groove with described groove match and in the permanent magnets of strip, through hole is offered along its length in described permanent magnets, fixed axis friction tight with described through hole is equipped with in described through hole, described fixed axis adopts plastic material to make, one end of described fixed axis has screw thread, this end of described fixed axis is spirally connected by screwed hole and described iron core and is connected, the other end of described fixed axis has cylindrical guide vane end stop, side and the described permanent magnets of described guide vane end stop fit tightly, between the outer wall of described permanent magnets and described iron core, there is curved fin, described fin fits in described iron core outer wall, described fin one end is fixed in described permanent magnets, the other end of described fin fits in described iron core outer wall, the outer wall of described guide vane end stop has anti-skidding burr.
2.
the rotor of a kind of magneto according to claim 1, is characterized in that, described groove is dovetail groove and described groove is outwards reducing shape, and described permanent magnets is dovetail shaped.
3.
the rotor of a kind of magneto according to claim 1 and 2, is characterized in that, described each permanent magnets has 2 fin, and one end of described fin is connected in the both sides at described permanent magnets minimum widith place.
4.
the rotor of a kind of magneto according to claim 1 and 2, is characterized in that, described number of recesses is 8 and is uniformly distributed, and the quantity of described permanent magnets is 4 and the distribution in interleaved.
5.
the rotor of a kind of magneto according to claim 1 and 2, is characterized in that, described fin is made up of soft magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420551035.XU CN204068476U (en) | 2014-09-24 | 2014-09-24 | A kind of rotor of magneto |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420551035.XU CN204068476U (en) | 2014-09-24 | 2014-09-24 | A kind of rotor of magneto |
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| Publication Number | Publication Date |
|---|---|
| CN204068476U true CN204068476U (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420551035.XU Expired - Fee Related CN204068476U (en) | 2014-09-24 | 2014-09-24 | A kind of rotor of magneto |
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| Country | Link |
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| CN (1) | CN204068476U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111030329A (en) * | 2019-11-29 | 2020-04-17 | 北京自动化控制设备研究所 | Multi-phase permanent magnet fault-tolerant servo motor |
-
2014
- 2014-09-24 CN CN201420551035.XU patent/CN204068476U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111030329A (en) * | 2019-11-29 | 2020-04-17 | 北京自动化控制设备研究所 | Multi-phase permanent magnet fault-tolerant servo motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Rotor magnetic pole structure of permanent magnet motor Effective date of registration: 20150617 Granted publication date: 20141231 Pledgee: Industrial Bank, Limited by Share Ltd, Putian, Chengxiang branch Pledgor: Putian City Yuan Tai industrial technology Co., Ltd Registration number: 2015350000041 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20160824 Granted publication date: 20141231 Pledgee: Industrial Bank, Limited by Share Ltd, Putian, Chengxiang branch Pledgor: Putian City Yuan Tai industrial technology Co., Ltd Registration number: 2015350000041 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20160924 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |