CN202798411U - Rotor structure of tangential magnetic brushless direct current (DC) motor - Google Patents

Rotor structure of tangential magnetic brushless direct current (DC) motor Download PDF

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Publication number
CN202798411U
CN202798411U CN 201220448349 CN201220448349U CN202798411U CN 202798411 U CN202798411 U CN 202798411U CN 201220448349 CN201220448349 CN 201220448349 CN 201220448349 U CN201220448349 U CN 201220448349U CN 202798411 U CN202798411 U CN 202798411U
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CN
China
Prior art keywords
magnetic
rotor
rotor block
rotating shaft
motor
Prior art date
Application number
CN 201220448349
Other languages
Chinese (zh)
Inventor
李卫东
Original Assignee
四川阿克拉斯电动车有限公司
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Publication date
Application filed by 四川阿克拉斯电动车有限公司 filed Critical 四川阿克拉斯电动车有限公司
Priority to CN 201220448349 priority Critical patent/CN202798411U/en
Application granted granted Critical
Publication of CN202798411U publication Critical patent/CN202798411U/en

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    • Y02T10/641

Abstract

The utility model discloses a rotor structure of a tangential magnetic brushless DC motor. A rotor body (2) is sleeved on a spindle (1), rectangular grooves are arranged on the rotor body (2) along the radius direction and evenly distributed circumferentially, magnetic steel (3) is mounted in the rectangular grooves, the spindle (1) is made of a permeability magnetic material, a plurality of magnetic separating through holes (4) distributed circumferentially and evenly are arranged on the rotor body (2), the magnetic separating through holes (4) communicate the two end faces of the rotor body (2) and are in one to one correspondence to the magnetic steel (3), each of magnetic separating through holes (4) is arranged between the corresponding magnetic steel (3) and the spindle (1), and two adjacent magnetic separating through holes (4) on the circumference form a magnetic separating bridge (5). According to the rotor structure, the structure is simple, the assembly is convenient, the performances of the motor can be improved when the production cost is effectively reduced, large centrifugal force can be born, and the rotor structure is particularly suitable for hybrid electric vehicles, electric vehicles and permanent magnet motors of generating sets.

Description

Tangential magnetic field brushless DC motor rotor structure

Technical field

The utility model belongs to technical field of motors, specifically, and particularly tangential magnetic field brushless DC motor rotor structure.

Background technology

At present, the rotor of tangential magnetic field brshless DC motor generally is made of parts such as rotating shaft, rotor block and magnet steel, admittedly overlaps rotor block in rotating shaft, and magnet steel is inlaid on the rotor block, and radially distributes.Because rotating shaft generally adopts non-magnet material to make, not only material cost is high, and rigidity is relatively poor, processing difficulties, and production cost is also high.Simultaneously, existing tangential magnetic field rotor assembling is comparatively loaded down with trivial details, and reliability is relatively poor, and magnet steel comes off from rotor block easily when High Rotation Speed on the one hand; On the other hand, can not bear huge centrifugal force, therefore be not suitable for the Large-power High-Speed motor application, the limitation of use is larger.

The utility model content

Technical problem to be solved in the utility model is to provide a kind of tangential magnetic field brushless DC motor rotor structure that can effectively reduce cost.

The technical solution of the utility model is as follows: a kind of tangential magnetic field brushless DC motor rotor structure, comprise rotating shaft (1), rotor block (2) and magnet steel (3), rotor block (2) is set in the rotating shaft (1), upward have rectangular channel along radial direction at rotor block (2), described rectangular channel is pressed even circumferential and is distributed, and in rectangular channel mounting magnetic steel (3), its key is: described rotating shaft (1) is made by permeability magnetic material, described rotor block (2) have a plurality of by even circumferential distribute every magnetic flux hole (4), should the both ends of the surface with rotor block (2) connect every magnetic flux hole (4), and corresponding one by one with magnet steel (3) every magnetic flux hole (4), each all is positioned between the corresponding magnet steel (3) and rotating shaft (1) every magnetic flux hole (4), two adjacent forming every magnetic bridge (5) between magnetic flux hole (4) on the circumference.

The utility model changes rotating shaft by permeability magnetic material into makes, and has not only reduced material cost, and good rigidly, long service life, and handling ease, production cost is low.Between rotating shaft and magnet steel, arrange every the magnetic flux hole, adjacent between the magnetic flux hole, formation every magnetic bridge, play a part every magnetic every the magnetic flux hole with every magnetic bridge, avoid rotating shaft that the magnetic field of magnet steel is exerted an influence, when the length of magnetic bridge became rational proportion with width design, leakage field was very little, and " poly-magnetic " ability of rotor block is stronger, whole motor has higher power density and torque/current ratio, and the performance of motor is better.

For simplified structure, make things convenient for processing and fabricating, and improve the effect every magnetic, described is fan-shaped every magnetic flux hole (4), and is connected with the rectangular channel of corresponding magnet steel (3).

As preferably, described thickness every magnetic bridge (5) is less than the thickness of magnet steel (3).

In order conveniently to draw materials, be conducive to processing and fabricating and reduce cost, described rotating shaft (1) is steel structure.

End face at described rotor block (2) two ends is provided with end plate (6), and described end plate (6) fits with the end face of rotor block (2), and fixes by equally distributed rivet (7) on the circumference and rotor block (2).Adopt end plate to axially the positioning of magnet steel, can prevent magnet steel generation axial play or come off; End plate adopts rivet to be connected with rotor block, and is not only easy to assembly, quick, and the fixing that connects is good.

As preferably, described end plate (6) is steel plate, and the end face of shape size and rotor block (2) adapts.

Beneficial effect: the utility model is simple in structure, easy to assembly, when effectively reducing production costs, performance that can lifting motor, and can bear huge centrifugal force, be specially adapted to the application of hybrid vehicle, electric automobile, generating set permanent magnet motor, have that specific power is large, electrical efficiency is high, lightweight, resistive torque is little, long-term characteristics such as high-speed cruising.

Description of drawings

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the end view that Fig. 1 removes end cap.

Embodiment

The utility model is described in further detail below in conjunction with drawings and Examples:

As shown in Figure 1 and Figure 2, the utility model is positioned at stator, is made of rotating shaft 1, rotor block 2, magnet steel 3, end plate 6 and rivet 7 etc.Wherein, rotating shaft 1 is made by permeability magnetic material, and the material of rotating shaft 1 is preferably steel, also can adopt other similar material.Rotor bushing body 2 in rotating shaft 1, this rotor block 2 is formed by stacking vertically by the identical rotor punching of some shape sizes, is connected or tight fit by key between rotor block 2 and the rotating shaft 1, in case spline daughter 2 relatively rotates with rotating shaft 1.On described rotor block 2, have rectangular channel along radial direction, this rectangular channel is groove, connect two end faces of rotor block 2, rectangular channel is pressed even circumferential and is distributed, the number of rectangular channel is determined according to actual needs, be preferably 10 in the present embodiment, and rectangular channel presses even circumferential and distribute, the center of circle of rectangular channel place circumference is positioned on the axial line of rotating shaft 1.The magnet steel 3 that shape size with it adapts all is housed in each rectangular channel.

As shown in Figure 1 and Figure 2, rotor block 2 have a plurality of by even circumferential distribute every magnetic flux hole 4, should the both ends of the surface with rotor block 2 connect every magnetic flux hole 4.Number every magnetic flux hole 4 equates with the number of magnet steel 3, and corresponding one by one with magnet steel 3 every magnetic flux hole 4.Each should be every magnetic flux hole 4 more close magnet steel 3 every magnetic flux hole 4 all between the magnet steel 3 and rotating shaft 1 in correspondence.Describedly be preferably fan-shaped every magnetic flux hole 4, this fan-shaped center of circle is on the axial line of rotating shaft 1, rectangular channel every magnetic flux hole 4 with corresponding magnet steel 3 is connected, two adjacent between magnetic flux hole 4, forming every magnetic bridge 5 on the circumference, and described thickness every magnetic bridge 5 is preferably the thickness less than magnet steel 3.End face at described rotor block 2 two ends is provided with end plate 6, this end 6 is preferably steel plate, and be sleeved in the rotating shaft 1, the end face of shape size and rotor block 2 adapts, end plate 6 fits with the end face of rotor block 2, and two end plates 6 fixes with rotor block 2 by equally distributed rivet 7 on the circumference.

Although below by reference to the accompanying drawings preferred embodiment of the present utility model is described; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic rather than determinate; those of ordinary skill in the art is under enlightenment of the present utility model; under the prerequisite of the utility model aim and claim; can make and representing like the multiple types; such as the number of magnet steel more; perhaps will change circle, ellipse or rectangle etc. into every the shape in magnetic flux hole, such conversion all falls within the protection range of the present utility model.

Claims (6)

1. tangential magnetic field brushless DC motor rotor structure, comprise rotating shaft (1), rotor block (2) and magnet steel (3), rotor block (2) is set in the rotating shaft (1), upward have rectangular channel along radial direction at rotor block (2), described rectangular channel is pressed even circumferential and is distributed, and in rectangular channel mounting magnetic steel (3), it is characterized in that: described rotating shaft (1) is made by permeability magnetic material, described rotor block (2) have a plurality of by even circumferential distribute every magnetic flux hole (4), should the both ends of the surface with rotor block (2) connect every magnetic flux hole (4), and corresponding one by one with magnet steel (3) every magnetic flux hole (4), each all is positioned between the corresponding magnet steel (3) and rotating shaft (1) every magnetic flux hole (4), two adjacent forming every magnetic bridge (5) between magnetic flux hole (4) on the circumference.
2. tangential magnetic field brushless DC motor rotor structure according to claim 1 is characterized in that: described every magnetic flux hole (4) for fan-shaped, and be connected with the rectangular channel of corresponding magnet steel (3).
3. tangential magnetic field brushless DC motor rotor structure according to claim 2 is characterized in that: described thickness every magnetic bridge (5) is less than the thickness of magnet steel (3).
4. it is characterized in that according to claim 1 and 2 or 3 described tangential magnetic field brushless DC motor rotor structures: described rotating shaft (1) is steel structure.
5. according to claim 1 and 2 or 3 described tangential magnetic field brushless DC motor rotor structures, it is characterized in that: the end face at described rotor block (2) two ends is provided with end plate (6), described end plate (6) fits with the end face of rotor block (2), and fixes by equally distributed rivet (7) on the circumference and rotor block (2).
6. tangential magnetic field brushless DC motor rotor structure according to claim 5, it is characterized in that: described end plate (6) is steel plate, and the end face of shape size and rotor block (2) adapts.
CN 201220448349 2012-09-05 2012-09-05 Rotor structure of tangential magnetic brushless direct current (DC) motor CN202798411U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220448349 CN202798411U (en) 2012-09-05 2012-09-05 Rotor structure of tangential magnetic brushless direct current (DC) motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220448349 CN202798411U (en) 2012-09-05 2012-09-05 Rotor structure of tangential magnetic brushless direct current (DC) motor

Publications (1)

Publication Number Publication Date
CN202798411U true CN202798411U (en) 2013-03-13

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CN (1) CN202798411U (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105743255A (en) * 2016-05-13 2016-07-06 山东理工大学 Production method of electric automobile embedded tangential magnetic field permanent magnet steel driving motor rotor
CN105790476A (en) * 2016-05-11 2016-07-20 山东理工大学 Built-in tangential and radial permanent magnet steel combined-type magnetic pole drive motor for electric automobile
CN105790474A (en) * 2016-05-11 2016-07-20 山东理工大学 Radial and built-in tangential permanent magnet steel drive motor for electric automobile
CN105811704A (en) * 2016-05-11 2016-07-27 山东理工大学 Composite permanent-magnet invisible magnetic pole and brushless electromagnetic hybrid excitation driving motor
CN105811679A (en) * 2016-05-11 2016-07-27 山东理工大学 Production method for rotor of hub driving motor with radial and built-in tangential permanent magnet steels
CN105811719A (en) * 2016-05-11 2016-07-27 山东理工大学 Radial and embedded tangential permanent-magnet steel hub driving motor of electric vehicle
CN106230215A (en) * 2016-09-05 2016-12-14 珠海凌达压缩机有限公司 Motor and rotor structure thereof
CN107359715A (en) * 2017-07-03 2017-11-17 广东威灵电机制造有限公司 Rotor punching, rotor and magneto

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105790476A (en) * 2016-05-11 2016-07-20 山东理工大学 Built-in tangential and radial permanent magnet steel combined-type magnetic pole drive motor for electric automobile
CN105790474A (en) * 2016-05-11 2016-07-20 山东理工大学 Radial and built-in tangential permanent magnet steel drive motor for electric automobile
CN105811704A (en) * 2016-05-11 2016-07-27 山东理工大学 Composite permanent-magnet invisible magnetic pole and brushless electromagnetic hybrid excitation driving motor
CN105811679A (en) * 2016-05-11 2016-07-27 山东理工大学 Production method for rotor of hub driving motor with radial and built-in tangential permanent magnet steels
CN105811719A (en) * 2016-05-11 2016-07-27 山东理工大学 Radial and embedded tangential permanent-magnet steel hub driving motor of electric vehicle
CN105743255A (en) * 2016-05-13 2016-07-06 山东理工大学 Production method of electric automobile embedded tangential magnetic field permanent magnet steel driving motor rotor
CN106230215A (en) * 2016-09-05 2016-12-14 珠海凌达压缩机有限公司 Motor and rotor structure thereof
CN106230215B (en) * 2016-09-05 2019-02-05 珠海凌达压缩机有限公司 Motor and its rotor structure
CN107359715A (en) * 2017-07-03 2017-11-17 广东威灵电机制造有限公司 Rotor punching, rotor and magneto

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130313

Termination date: 20150905

EXPY Termination of patent right or utility model