CN102684332A - Magnetic steel fixing structure for automotive permanent magnet motor - Google Patents
Magnetic steel fixing structure for automotive permanent magnet motor Download PDFInfo
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- CN102684332A CN102684332A CN2012101620591A CN201210162059A CN102684332A CN 102684332 A CN102684332 A CN 102684332A CN 2012101620591 A CN2012101620591 A CN 2012101620591A CN 201210162059 A CN201210162059 A CN 201210162059A CN 102684332 A CN102684332 A CN 102684332A
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- magnet steel
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- steel
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Abstract
The invention discloses a magnetic steel fixing structure for an automotive permanent magnet motor. The magnetic steel fixing structure comprises a spindle (1), an armature punching sheet (2), magnetic steels (3) and insulating sheets (4), wherein the armature punching sheet (2) is sleeved on the spindle (1); positioning slots (5) are uniformly distributed on an outer circle of the armature punching sheet (2); the insulating sheets (4) are mounted in the positioning slots (5); magnetic steel mounting slots (6) are formed by adjacent insulating sheets (4) and the armature punching sheet (2); the magnetic steels (3) have tile-shaped structures; the magnetic steels (3) are spliced to the outer circle of the armature punching sheet (2); and the magnetic steels (3) in the adjacent magnetic steel mounting slots (6) along the circumferential direction of the armature punching sheet (2) are reverse in polarities. The magnetic steel fixing structure for the automotive permanent magnet motor has the beneficial effects of larger radial equivalent gap, smaller armature reaction, lower distortion rate of magnetic field waveform and current voltage waveform, excellent vibrating noise performance, simpleness and convenience in mounting, firmness in fixing magnetic steel, simplicity in structure of armature punching sheet and low cost.
Description
Technical field
The present invention relates to New-energy electric vehicle and use technical field of motors, particularly a kind of automobile permanent magnet magnetic steel of motor fixed structure.
Background technology
China's rare earth resources is abundant, and the cost performance of permanent magnetic material improves constantly, and the especially fast development of Nd-Fe-Bo permanent magnet material is for the marketization of magneto provides support.Magneto adopts the permanent magnetic material excitation, has little one or two seat No. of the comparable conventional motor of magneto under the condition of equal performance, and volume weight is with the obvious advantage, and electric efficiency is high, and its market potential is huge.
But the manufacturing process of magneto and conventional motor have than big difference, and particularly the structural shape of magneto is more, and its manufacturing process of the magneto of different structure is also different.The magneto kind is a lot, can be divided into surface-mount type and built-in two kinds of patterns according to the permanent magnet mounting means.At present, built-in magnetic structure, the punching complex structure, die cost is high.Compare interior permanent magnet machines, the punching of surface-mount type magneto is simple in structure, but magnet steel is difficult for fixing.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art, provide that a kind of armature reaction is less, the vibration noise function admirable, simple and convenient automobile permanent magnet magnetic steel of motor fixed structure be installed.
The object of the invention is realized through following technical scheme: automobile permanent magnet magnetic steel of motor fixed structure, and it comprises main shaft, armature stamping, magnet steel and insulating trip, armature stamping is set on the main shaft; The cylindrical of armature stamping is along circumferentially being evenly equipped with eight location notchs; Insulating trip is installed in the location notch, and adjacent insulating trip and armature stamping form the magnet steel mounting groove, and magnet steel is installed in the magnet steel mounting groove; Be provided with the identical magnet steel of pole orientation in each magnet steel mounting groove; Magnet steel is a watt shape structure, and bonding magnetic steel is in the excircle of armature stamping, and is opposite along the magnet steel polarity in the adjacent magnet steel mounting groove of armature stamping circumferencial direction.
Be provided with three blocks of magnet steel in described each magnet steel mounting groove, promptly every utmost point magnet steel is divided into three.
The cylindrical of described magnet steel is coated with epoxy resin layer.
Described epoxy resin layer periphery is wound with stainless steel wire.
The present invention has the following advantages: magnet steel of the present invention is the surface-mount type structure, and the radially effective air gap of surface-mount type magneto is bigger, and armature reaction is less, and field waveform and current-voltage waveform aberration rate are less, the vibration noise function admirable; Magnet steel fixed form of the present invention, fixing different with existing surface-mount type magnet steel have the simple and convenient characteristics of installing, used (cold-)drawn (steel)wire fixedly the magnet steel method not have the latitude band than general use more firm; The armature stamping that is used for fixing magnet steel is simple in structure, and is with low cost.
Description of drawings
Fig. 1 is a structural representation of the present invention
Among the figure, 1-main shaft, 2-armature stamping, 3-magnet steel, 4-insulating trip, 5-location notch, 6-magnet steel mounting groove, 7-epoxy resin layer, 8-stainless steel wire.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further description:
As shown in Figure 1, automobile permanent magnet magnetic steel of motor fixed structure, it comprises main shaft 1, armature stamping 2, magnet steel 3 and insulating trip 4; Armature stamping 2 is set on the main shaft 1, and the cylindrical of armature stamping 2 is along circumferentially being evenly equipped with eight location notchs 5, in order to positioning magnetic steel 3; Insulating trip 4 is installed in the location notch 5, and adjacent insulating trip 4 forms magnet steel mounting groove 6 with armature stamping 2, and magnet steel 3 is installed in the magnet steel mounting groove 6; Be provided with a utmost point magnet steel 3 in each magnet steel mounting groove 6; Be to be provided with the identical magnet steel of pole orientation 3 in each magnet steel mounting groove 6, magnet steel 3 is a watt shape structure, and magnet steel 3 is adhered to the excircle of armature stamping 2; Magnet steel 3 is opposite along the polarity of armature stamping 2 circumferencial direction consecutive roots, and is promptly opposite along magnet steel 3 polarity in the adjacent magnet steel mounting groove 6 of armature stamping 2 circumferencial directions.
Be provided with three blocks of magnet steel 3 in described each magnet steel mounting groove 6, promptly every utmost point magnet steel 3 is divided into three.
The cylindrical of described magnet steel 3 is coated with epoxy resin layer 7, and described epoxy resin layer 7 peripheries are wound with stainless steel wire 8.When guaranteeing the high-speed cruising of motor, the mechanical strength that armature is required, design stainless steel silk 8 winding outer rings, and the steel wire two ends are fixed on the both ends of the surface of armature core, and clean and tidy for the appearance that guarantees magnet steel 3, air gap is even, and magnet steel 3 cylindricals apply with epoxy resin.
The present invention adopts special tooling to carry out the location and the installation of magnet steel 3, with the magnet steel special glue magnet steel 3 is carried out bondingly, and with (cold-)drawn (steel)wire magnet steel 3 is carried out colligation, and the present invention can apply to the 10kw permanent-magnet brushless DC electric machine.
Claims (4)
1. automobile permanent magnet magnetic steel of motor fixed structure; It is characterized in that: it comprises main shaft (1), armature stamping (2), magnet steel (3) and insulating trip (4); Armature stamping (2) is set on the main shaft (1), and the cylindrical of armature stamping (2) is equipped with insulating trip (4) along circumferentially being evenly equipped with eight location notchs (5) in the location notch (5); Adjacent insulating trip (4) forms magnet steel mounting groove (6) with armature stamping (2); Magnet steel (3) is installed in the magnet steel mounting groove (6), is provided with the identical magnet steel of pole orientation (3) in each magnet steel mounting groove (6), and magnet steel (3) is a watt shape structure; Magnet steel (3) is adhered to the excircle of armature stamping (2), and magnet steel (3) polarity in armature stamping (2) the adjacent magnet steel mounting groove of circumferencial direction (6) is opposite.
2. automobile permanent magnet magnetic steel of motor fixed structure according to claim 1 is characterized in that: be provided with three blocks of magnet steel (3) in described each magnet steel mounting groove (6).
3. automobile permanent magnet magnetic steel of motor fixed structure according to claim 1 is characterized in that: the cylindrical of described magnet steel (3) is coated with epoxy resin layer (7).
4. automobile permanent magnet magnetic steel of motor fixed structure according to claim 3 is characterized in that: described epoxy resin layer (7) periphery is wound with stainless steel wire (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101620591A CN102684332A (en) | 2012-05-23 | 2012-05-23 | Magnetic steel fixing structure for automotive permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101620591A CN102684332A (en) | 2012-05-23 | 2012-05-23 | Magnetic steel fixing structure for automotive permanent magnet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102684332A true CN102684332A (en) | 2012-09-19 |
Family
ID=46815852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101620591A Pending CN102684332A (en) | 2012-05-23 | 2012-05-23 | Magnetic steel fixing structure for automotive permanent magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102684332A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102957245A (en) * | 2012-10-24 | 2013-03-06 | 王乃兵 | Servo permanent-magnet synchronous motor rotor |
| CN105762960A (en) * | 2016-04-21 | 2016-07-13 | 济南科亚电子科技有限公司 | Motor rotor and low voltage brushless servo motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6583531B1 (en) * | 1999-05-21 | 2003-06-24 | Matsushita Electric Industrial Co., Ltd. | Motor with permanent magnet |
| CN201893632U (en) * | 2010-10-25 | 2011-07-06 | 腾禾精密电机(昆山)有限公司 | Resin impregnated adhesive tape device of rotor |
| CN201928104U (en) * | 2011-01-29 | 2011-08-10 | 江青春 | Fixing structure for rotor magnet steel of direct-current motor |
| CN202565045U (en) * | 2012-05-23 | 2012-11-28 | 东方电气集团东风电机有限公司 | Permanent magnet motor magnet steel fixing structure applied to vehicle |
-
2012
- 2012-05-23 CN CN2012101620591A patent/CN102684332A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6583531B1 (en) * | 1999-05-21 | 2003-06-24 | Matsushita Electric Industrial Co., Ltd. | Motor with permanent magnet |
| CN201893632U (en) * | 2010-10-25 | 2011-07-06 | 腾禾精密电机(昆山)有限公司 | Resin impregnated adhesive tape device of rotor |
| CN201928104U (en) * | 2011-01-29 | 2011-08-10 | 江青春 | Fixing structure for rotor magnet steel of direct-current motor |
| CN202565045U (en) * | 2012-05-23 | 2012-11-28 | 东方电气集团东风电机有限公司 | Permanent magnet motor magnet steel fixing structure applied to vehicle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102957245A (en) * | 2012-10-24 | 2013-03-06 | 王乃兵 | Servo permanent-magnet synchronous motor rotor |
| CN105762960A (en) * | 2016-04-21 | 2016-07-13 | 济南科亚电子科技有限公司 | Motor rotor and low voltage brushless servo motor |
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Application publication date: 20120919 |