CN108390486A - A kind of disk type electric motor rotor magnetic steel fixed structure - Google Patents

A kind of disk type electric motor rotor magnetic steel fixed structure Download PDF

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Publication number
CN108390486A
CN108390486A CN201810402134.4A CN201810402134A CN108390486A CN 108390486 A CN108390486 A CN 108390486A CN 201810402134 A CN201810402134 A CN 201810402134A CN 108390486 A CN108390486 A CN 108390486A
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CN
China
Prior art keywords
hole
magnet steel
interior
carrier
end cap
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Granted
Application number
CN201810402134.4A
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Chinese (zh)
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CN108390486B (en
Inventor
杨立超
柳鑫
王瑞敏
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HENAN BAOTIAN ELECTROMECHANICAL SCIENCE AND TECHNOLOGY Co Ltd
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HENAN BAOTIAN ELECTROMECHANICAL SCIENCE AND TECHNOLOGY Co Ltd
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Priority to CN201810402134.4A priority Critical patent/CN108390486B/en
Publication of CN108390486A publication Critical patent/CN108390486A/en
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Publication of CN108390486B publication Critical patent/CN108390486B/en
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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22Rotating parts of the magnetic circuit
    • H02K1/28Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22Rotating parts of the magnetic circuit
    • H02K1/27Rotor cores with permanent magnets
    • H02K1/2706Inner rotors
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22Rotating parts of the magnetic circuit
    • H02K1/32Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K15/00Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/03Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

The invention belongs to technical field of motors, more particularly, to a kind of disk type electric motor rotor magnetic steel fixed structure, including end cap and carrier, end cap is two, is respectively fixedly disposed at the both sides of carrier, and the center of end cap and carrier is all provided with axis placing hole, multiple magnet steel holes are uniformly arranged in the circumferential direction on carrier, magnet steel is set in magnet steel hole, the corresponding multiple peep holes in and position identical as magnet steel hole number are provided on end cap, the size of peep hole is less than the size in magnet steel hole.Manufacture craft of the present invention is simple, good convenient for the working condition and thermal diffusivity of observation magnet steel.

Description

A kind of disk type electric motor rotor magnetic steel fixed structure
Technical field
The invention belongs to technical field of motors, more particularly, to a kind of disk type electric motor rotor magnetic steel fixed structure.
Background technology
Disc type electric machine, can due to the features such as small, power density is high, axial dimension is short, Life cycle is at low cost In majority there is slim mounting location to use, magnet steel fixation has vital work to motor even running and reliability With.Traditional disk type electric motor rotor mostly uses greatly surface-mount type structure, and the magnet steel of this structure is pasted onto rotor surface, due to centrifugation Force effect, surface-mount type structure can not be such that motor excessively high speed runs, limit the maximum speed of motor, reduce the property of motor Energy.In addition, magnet steel is adhered to rotor surface, there are some potential safety problems, relationship pole of the glue due to the time for such method It is also easy to produce rotten aging phenomenon, sticking strength is caused to decline to a great extent, magnet steel falls off in an axial direction.Also on this basis in magnet steel The measures such as peripheral casting epoxy resin layer or winding of band-type coil will result in motor manufacturing process ratio in this way to fix magnet steel The shortcomings of more complex, poor radiation, reduces the efficiency output of motor.
The patent document of notification number CN203289217U discloses a kind of disk type electric motor rotor, including rotor endcap, rotor iron Core and permanent magnet and sheath, for covering rotor core and being fixedly connected with rotor core, rotor endcap is separate to be turned rotor endcap The one side arching of sub- iron core is cyclic annular, and sheath is fixedly connected by being interference fitted with rotor endcap side wall and rotor core side wall;Rotor The side wall of iron core is provided with several and is uniformly distributed permanent magnet trough for being embedded in permanent magnet, permanent magnet be embedded in permanent magnet trough and with turn Son is fixedly connected;Interior air gap hole is equipped between the side wall each two permanent magnet trough of rotor core, rotor endcap is equipped with several A equal with interior air gap hole number and matched outer gas lyriform pore.The side wall of the patent rotor core is opened up for being embedded in permanent magnet Then permanent magnet trough makes permanent magnet be isolated from the outside world completely by sheath protection, manufacture craft is more complex, and is not easy to observe The working condition of permanent magnet, while thermal diffusivity is poor.
The patent document of publication number 107591944A discloses a kind of disc type electric machine radiator structure, including:First end cover, including The periphery of bottom plate and annular side plate, the annular side plate from the bottom plate extends outward, so that the first end cover is in basin Shape is arranged, and the bottom plate is equipped with via, and the also projection of the inner surface of the end cap is convex around the annular installation of via setting It rises, the first end cover is internally provided with the first cooling duct;Stator module is installed in the first end cover, and is set in institute It states in annular installation protrusion;And heat-conducting glue, it is filled between the stator module and the internal face of the first end cover, uses Conducting the heat of the stator module to the first cooling duct of the end cap.The heat conduction that the structure passes through end cap internal face The heat that stator module generates is transmitted to by heat-conducting glue in the first end cover by glue, and then will by the first cooling duct Heat is conducted to the external world, the conductive structure of indirect type, heat dissipation effect unobvious.
Invention content
In view of this, in view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of disk type electric motor rotor magnet steel to consolidate Determine structure, manufacture craft is simple, good convenient for the working condition and thermal diffusivity of observation magnet steel.
In order to achieve the above objectives, the present invention uses following technical scheme:
A kind of disk type electric motor rotor magnetic steel fixed structure, including end cap and carrier, the end cap are two, are fixedly installed respectively In the both sides of carrier, the center of the end cap and carrier is all provided with axis placing hole, is circumferentially uniformly set on the carrier Multiple magnet steel holes are set, magnet steel is set in the magnet steel hole, it is opposite to be provided with and position identical as magnet steel hole number on the end cap The multiple peep holes answered, the size of the peep hole are less than the size in magnet steel hole.
Further, multiple interior heat emission holes are uniformly arranged in the circumferential direction on the carrier, the interior heat emission hole is located at axis hole Between magnet steel hole, the corresponding multiple outer heat emission holes in and position identical as interior heat dissipation hole number are provided on the end cap.
Further, multiple interior heat emission holes include alternatively distributed multiple interior long heat emission holes and multiple interior short heat emission holes, institute Outer heat emission hole is stated with the collocation of interior heat emission hole to be arranged.
Further, multiple interior air gap holes are uniformly arranged in the circumferential direction on the carrier, the interior air gap hole is located at adjacent Between magnet steel hole, the corresponding outer gas lyriform pore in and position identical as interior air gap hole number is provided on the end cap.
Further, the interior air gap hole and the edge of outer gas lyriform pore are welded and fixed;The interior heat emission hole and outer heat emission hole Edge be welded and fixed;The outer edge of the end cap is fixedly connected with the outer edge of carrier.
Further, the interior air gap hole includes along the radially-arranged interior long air gap hole of carrier and interior lyriform pore of losing heart, institute It is rectangle to state interior long air gap hole and interior lyriform pore of losing heart.
Further, the end cap and carrier are all made of non-permeable material.
Further, the magnet steel hole is angularly disposed.
The beneficial effects of the invention are as follows:
1. by the way that peep hole is arranged on the one hand convenient for the working condition of observation magnet steel, on the other hand also allow for radiating;Peep hole Size be less than magnet steel hole size, can effectively pre- antimagnetic steel in axial direction move.
2. magnet steel hole is set to carrier at the position of proximal edge, i.e., still there is a certain distance with the side wall of carrier, It in magnet steel insertion magnet steel hole, will realize that the fixed effect of magnet steel, and Embedded structure, magnet steel can bear big centrifugation and make Firmly, without using glue, winding of band-type coil or sheath, simplify production process, and prevent traditional structure magnet steel and fall off The problem of.
3. by the combining of heat emission hole in setting and outer heat emission hole, the combination in interior air gap hole and outer gas lyriform pore, reinforce rotor Thermal diffusivity in the course of work, at the same interior heat emission hole and outer heat emission hole, interior air gap hole and outer gas lyriform pore can be used single tool into Row processing, can also mitigate the weight of carrier and end cap, make total lightweight, save drive energy;
4. when specific making, passing through the fixation that end cap and carrier are realized in the welding at three:First, interior air gap hole and outer gas lyriform pore Edge be welded and fixed, second is that the edge of interior heat emission hole and outer heat emission hole is welded and fixed, third, the outer edge and carrier of end cap Outer edge be welded and fixed, which makes carrier connect with end cap more stable on the basis of ensureing effectively heat dissipation, Using the interior air gap hole of rectangular configuration and outer gas lyriform pore, it is effectively increased weld length, is conducive to structure and fixes.
5. magnet steel hole is angularly disposed, be conducive to improve motor torque ripple, reduce motor oscillating, reduction noise has centainly Effect.
In conclusion the manufacture craft that the present invention has is simple, and can bear big operating on centrifugal force, have it is light-weight, The good advantage of thermal diffusivity, substantially increases the rotating speed of motor trouble free service, improves the working performance of motor.
Description of the drawings
Fig. 1 is the structural diagram of the present invention;
Fig. 2 is the structure sectional view of carrier of the present invention;
Fig. 3 is the cross-sectional view of A-A in Fig. 1;
Fig. 4 is the comparison diagram in straight pole magnet steel hole and the hole torque of oblique pole magnet steel;
Fig. 5 is the counter potential waveform figure in straight pole magnet steel hole;
Fig. 6 is the counter potential waveform figure in oblique pole magnet steel hole.
Figure label:1- end caps, 2- carriers, 3- magnet steel, 4- axis holes, 5- magnet steel hole, heat emission hole in 6-, air gap in 7- Hole, 8- peep holes, the outer heat emission holes of 9-, 10- outer gas lyriform pores.
Specific implementation mode
The invention will be further described with reference to the accompanying drawings and examples.
As shown in Figs. 1-3, the present invention includes end cap 1, carrier 2 and magnet steel 3, and end cap 1 and carrier 2 are all made of 316 not Become rusty steel, and end cap 1 is two, is respectively welded the both sides for being fixed at carrier 2, and the center of end cap 1 and carrier 2 is all provided with Axis placing hole 4 is uniformly arranged in the circumferential direction eight magnet steel holes 5 on carrier 2, and magnet steel hole 5 is oblique design, and magnet steel hole 5 is close to carrying The edge of disk 2 is arranged, and magnet steel hole 5 is fan-like structure, and magnet steel 3 is embedded in magnet steel hole 5, and ten are uniformly arranged in the circumferential direction on carrier 2 Heat emission hole 6 in two groups, interior heat emission hole 6 is between axis hole 4 and magnet steel hole 5, and heat emission hole 6 includes alternatively distributed multiple in every group Interior long heat emission hole and multiple interior short heat emission holes are uniformly arranged in the circumferential direction air gap hole 7 in eight groups on carrier 2, and interior air gap hole 7 is located at Between adjacent magnet steel hole 5, in every group air gap hole 7 include along the radially-arranged interior long air gap hole of carrier and interior lyriform pore of losing heart, it is interior Long air gap hole and interior lyriform pore of losing heart are rectangle;
The corresponding multiple peep holes 8 in and position identical as 5 quantity of magnet steel hole, the undersized of peep hole 8 are provided on end cap 1 Size in magnet steel hole 5 is provided with the corresponding multiple outer heat emission holes 9 in and position identical as 6 quantity of interior heat emission hole on end cap 1, Interior heat emission hole 6 is identical with the structure of outer heat emission hole 9, is provided with that identical as interior 7 quantity of air gap hole and position is corresponding on end cap 1 Outer gas lyriform pore 10, interior air gap hole 7 are identical as the structure of outer gas lyriform pore 10.
Data analysis is carried out using ANSYS softwares, as shown in figure 4, turning using the tooth socket of the disc type electric machine in oblique pole magnet steel hole The cogging torque of the disc type electric machine in moment ratio straight pole magnet steel hole is small, as shown in Figure 5 and Figure 6, using the disc type electric machine in oblique pole magnet steel hole No-load back electromotive force Waveform sine it is better than the no-load back electromotive force Waveform sine of the disc type electric machine in straight pole magnet steel hole, this Magnet steel hole 5 in embodiment is designed using oblique structure, is conducive to improve motor torque ripple, is reduced motor oscillating, is subtracted Small noise has certain effect.
In the present embodiment, the fixed form between two end caps 1 and carrier 2 uses:Interior air gap hole 7 and outer gas lyriform pore 10 Adjacent edge is fixed using laser welding;Interior heat emission hole 6 and the adjacent edge of outer heat emission hole 9 are fixed using laser welding;End The outer edge of lid 1 is fixedly connected with the outer edge of carrier 2 using laser.
A kind of assembly method of disk type electric motor rotor magnetic steel fixed structure of patent of the present invention:Magnet steel 3 is sequentially embedded first In magnet steel hole 5, end cap 1 is then placed in 2 both ends of carrier, end cap 1 is carried out by way of laser welding and carrier 2 welds It is fixed.
Finally illustrate, the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, this field is common Other modifications or equivalent replacement that technical staff makes technical scheme of the present invention, without departing from technical solution of the present invention Spirit and scope, be intended to be within the scope of the claims of the invention.

Claims (9)

1. a kind of disk type electric motor rotor magnetic steel fixed structure, it is characterised in that:Including end cap and carrier, the end cap is two It is a, it is respectively fixedly disposed at the both sides of carrier, the center of the end cap and carrier is all provided with axis placing hole, the carrier On be uniformly arranged in the circumferential direction multiple magnet steel holes, magnet steel is set in the magnet steel hole, is provided with and magnet steel hole number on the end cap The corresponding multiple peep holes in identical and position, the size of the peep hole are less than the size in magnet steel hole.
2. a kind of disk type electric motor rotor magnetic steel fixed structure according to claim 1, it is characterised in that:On the carrier Multiple interior heat emission holes are uniformly arranged in the circumferential direction, the interior heat emission hole is provided between axis hole and magnet steel hole on the end cap The corresponding multiple outer heat emission holes in identical and position with interior heat dissipation hole number.
3. a kind of disk type electric motor rotor magnetic steel fixed structure according to claim 2, it is characterised in that:Multiple interior heat emission holes Including alternatively distributed multiple interior long heat emission holes and multiple interior short heat emission holes, the outer heat emission hole is arranged with the collocation of interior heat emission hole.
4. a kind of disk type electric motor rotor magnetic steel fixed structure according to claim 2, it is characterised in that:On the carrier Be uniformly arranged in the circumferential direction multiple interior air gap holes, the interior air gap hole between adjacent magnet steel hole, be provided on the end cap with Interior air gap hole number is identical and the corresponding outer gas lyriform pore in position.
5. a kind of disk type electric motor rotor magnetic steel fixed structure according to claim 4, it is characterised in that:The interior air gap hole It is welded and fixed with the edge of outer gas lyriform pore;The edge of the interior heat emission hole and outer heat emission hole is welded and fixed;The outside of the end cap Edge is fixedly connected with the outer edge of carrier.
6. a kind of disk type electric motor rotor magnetic steel fixed structure according to claim 4, it is characterised in that:The interior air gap hole Including along the radially-arranged interior long air gap hole of carrier and interior lyriform pore of losing heart, the interior long air gap hole and interior lyriform pore of losing heart are square Shape.
7. a kind of disk type electric motor rotor magnetic steel fixed structure according to claim 1, it is characterised in that:It the end cap and holds Load plate is all made of non-permeable material.
8. a kind of disk type electric motor rotor magnetic steel fixed structure according to claim 1, it is characterised in that:The magnet steel hole position The position of proximal edge is leaned in carrier.
9. a kind of disk type electric motor rotor magnetic steel fixed structure according to claim 1, it is characterised in that:The magnet steel hole is It is angularly disposed.
CN201810402134.4A 2018-04-28 2018-04-28 Disk motor rotor magnet steel fixed knot constructs Active CN108390486B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810402134.4A CN108390486B (en) 2018-04-28 2018-04-28 Disk motor rotor magnet steel fixed knot constructs

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Application Number Priority Date Filing Date Title
CN201810402134.4A CN108390486B (en) 2018-04-28 2018-04-28 Disk motor rotor magnet steel fixed knot constructs

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CN108390486A true CN108390486A (en) 2018-08-10
CN108390486B CN108390486B (en) 2023-12-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109193989A (en) * 2018-08-17 2019-01-11 华中科技大学 A kind of rotor suitable for axial flux permanent magnet motor and the motor containing the rotor

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CN201533204U (en) * 2009-10-30 2010-07-21 宁波北斗科技有限公司 Magnetic steel fixing structure of motor rotor
JP2011130530A (en) * 2009-12-15 2011-06-30 Honda Motor Co Ltd Axial gap motor and manufacturing method of rotor of the same
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CN103166347A (en) * 2011-12-09 2013-06-19 本田技研工业株式会社 Permanent magnet type rotator
CN203289217U (en) * 2013-05-23 2013-11-13 杭州娃哈哈科技有限公司 Disc type motor rotor
CN204334259U (en) * 2014-11-14 2015-05-13 江西理工大学 A kind of electric vehicle rotor segment is oblique pole formula double plate magneto oppositely
CN105790477A (en) * 2014-12-18 2016-07-20 肖瑶 Rotor and magnetic steel fixing structure for disk generator
US20160211711A1 (en) * 2015-01-19 2016-07-21 Honda Motor Co., Ltd. Rotor of rotary electric machine and method of producing the same
JP2016201868A (en) * 2015-04-07 2016-12-01 本田技研工業株式会社 Rotor of rotary electric machine
CN107070027A (en) * 2016-12-29 2017-08-18 湘潭电机股份有限公司 A kind of high speed permanent magnet motor rotor structure and motor
CN107846096A (en) * 2017-10-20 2018-03-27 珠海格力节能环保制冷技术研究中心有限公司 Disk type electric motor rotor and disc type electric machine
CN107872111A (en) * 2017-11-10 2018-04-03 沈阳工业大学 A kind of high intensity sandwich pole wheel of Double-stator axial magnetic flow magneto
CN107910965A (en) * 2017-10-12 2018-04-13 金洁琼 The cover board of high-speed motor of electric vehicle combined rotor
CN208094315U (en) * 2018-04-28 2018-11-13 河南宝天机电科技有限公司 A kind of disk type electric motor rotor magnetic steel fixed structure

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201533204U (en) * 2009-10-30 2010-07-21 宁波北斗科技有限公司 Magnetic steel fixing structure of motor rotor
JP2011130530A (en) * 2009-12-15 2011-06-30 Honda Motor Co Ltd Axial gap motor and manufacturing method of rotor of the same
CN102570669A (en) * 2010-12-06 2012-07-11 丰田自动车株式会社 End plate, and rotor for rotary electric machine which employs the end plate
CN102611266A (en) * 2011-01-18 2012-07-25 德昌电机(深圳)有限公司 Motor for washing machine, motor for clothes dryer, motor and motor rotor manufacturing method
CN103166347A (en) * 2011-12-09 2013-06-19 本田技研工业株式会社 Permanent magnet type rotator
CN202475062U (en) * 2012-02-29 2012-10-03 李金东 Permanent magnet direct-current brushless motor rotor
CN203289217U (en) * 2013-05-23 2013-11-13 杭州娃哈哈科技有限公司 Disc type motor rotor
CN204334259U (en) * 2014-11-14 2015-05-13 江西理工大学 A kind of electric vehicle rotor segment is oblique pole formula double plate magneto oppositely
CN105790477A (en) * 2014-12-18 2016-07-20 肖瑶 Rotor and magnetic steel fixing structure for disk generator
US20160211711A1 (en) * 2015-01-19 2016-07-21 Honda Motor Co., Ltd. Rotor of rotary electric machine and method of producing the same
JP2016201868A (en) * 2015-04-07 2016-12-01 本田技研工業株式会社 Rotor of rotary electric machine
CN107070027A (en) * 2016-12-29 2017-08-18 湘潭电机股份有限公司 A kind of high speed permanent magnet motor rotor structure and motor
CN107910965A (en) * 2017-10-12 2018-04-13 金洁琼 The cover board of high-speed motor of electric vehicle combined rotor
CN107846096A (en) * 2017-10-20 2018-03-27 珠海格力节能环保制冷技术研究中心有限公司 Disk type electric motor rotor and disc type electric machine
CN107872111A (en) * 2017-11-10 2018-04-03 沈阳工业大学 A kind of high intensity sandwich pole wheel of Double-stator axial magnetic flow magneto
CN208094315U (en) * 2018-04-28 2018-11-13 河南宝天机电科技有限公司 A kind of disk type electric motor rotor magnetic steel fixed structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109193989A (en) * 2018-08-17 2019-01-11 华中科技大学 A kind of rotor suitable for axial flux permanent magnet motor and the motor containing the rotor

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