CN201639457U - Permanent magnet synchronous brushless DC motor rotor - Google Patents
Permanent magnet synchronous brushless DC motor rotor Download PDFInfo
- Publication number
- CN201639457U CN201639457U CN2010201569267U CN201020156926U CN201639457U CN 201639457 U CN201639457 U CN 201639457U CN 2010201569267 U CN2010201569267 U CN 2010201569267U CN 201020156926 U CN201020156926 U CN 201020156926U CN 201639457 U CN201639457 U CN 201639457U
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- China
- Prior art keywords
- magnet synchronous
- permanent
- motor rotor
- synchronous brushless
- arc
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- Expired - Fee Related
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Abstract
The utility model discloses a permanent magnet synchronous brushless DC motor rotor and belongs to a motor rotor. The structure of the permanent magnet synchronous brushless DC motor rotor comprises a rotating shaft and rotor punching sheets. A plurality of rotor punching sheets are laminated into a whole body to be arranged on the rotating shaft. The rotor punching sheet lamination is uniformly provided with arc through grooves in the axial direction. Magnetic steels of which the cross sections are of an arc shape are tightly embedded in the through grooves. Compared with the prior art, the permanent magnet synchronous brushless DC motor rotor of the utility model has the characteristics of reasonable design, simple structure, easy processing, power saving, low magnetic leakage and the like.
Description
Technical field
The utility model relates to a kind of rotor, specifically the permanent-magnet synchronous brushless DC motor rotor.
Background technology
Motor is meant according to the law of electromagnetic induction realizes the conversion of electric energy or a kind of calutron of transmission.In recent years, along with the fast development of power electronic technology, microelectric technique, New-type electric machine control theory and rare earth permanent-magnetic material, permagnetic synchronous motor is applied rapidly.Permagnetic synchronous motor has that volume is little, and loss is low, and the efficient advantages of higher, just seems very necessary to its research at the today in that energy savings and environmental protection come into one's own day by day.
Permanent magnet dc motor is made up of magnetic pole of the stator, rotor, shell etc., and brshless DC motor adopts semiconductor switch device to realize electronic commutation.Rotor its mainly to act on be to produce electromagnetic torque and induced electromotive force, forms by rotating shaft, rotor punching, rotor is installed in the rotating shaft, rotating shaft plays the supporting role that rotor rotates.
The rotor of prior art magnet steel generally is not set, even be provided with magnet steel also be by adhesive on rotor punching, this structure in use can cause magnet steel to drop because of factors such as adhesive are aging or the motor feels hot.And the magnet steel that is provided with in the prior art is plate, and bad startup, leakage field be big, the dead angle is arranged, use inconvenience.
The utility model content
Technical assignment of the present utility model is at above weak point, provide a kind of simple in structure, be easy to process, save power, permanent-magnet synchronous brushless DC motor rotor that leakage field is little.
The technical scheme that its technical problem that solves the utility model adopts is: comprise rotating shaft and rotor punching, the multi-disc rotor punching is superimposed as and is wholely set in rotating shaft; Evenly have arc-shaped slot on the rotor punching lamination is axial, closely be inlaid with the magnet steel that cross section is an arc in the groove.
The position of described arc-shaped slot is near the cylindrical place of rotor punching, the even adjacent distribution of arc-shaped slot.
The number of described arc-shaped slot is 2～16, the magnet steel that closely to be inlaid with a cross section in each arc-shaped slot be arc.
Described rotor punching lamination two ends are fixed with annular magnet steel protective cover.
Described annular magnet steel protective cover is fixed on rotor punching lamination two ends by 2～16 screws, and screw evenly distributes.
The shaft hole at described rotor punching center is provided with the wedge shape keyway, and rotating shaft is provided with corresponding wedge, and the multi-disc rotor punching is superimposed as one and closely is arranged in the rotating shaft by shaft hole.
Described magnet steel adopts the rare earth permanent-magnetic material of high energy product to make.
The thickness of described magnet steel is 3～12mm.
Described rotor punching adopts punching silicon-steel to form.
Described rotating shaft is processed by round steel.
Permanent-magnet synchronous brushless DC motor rotor of the present utility model is compared with prior art, has the following advantages:
1, high efficiency, steady-state speed, error are little;
2, being provided with magnet steel starts easily;
3, the magnet steel cross section is an arc, has solved the dead angle problem when using in the prior art;
4, volume little, reasonable in design, simple in structure, be easy to processing, easy to use, thereby, have good value for applications.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Accompanying drawing 1 is the structural upright schematic diagram of permanent-magnet synchronous brushless DC motor rotor;
Accompanying drawing 2 is the installation schematic perspective view of permanent-magnet synchronous brushless DC motor rotor;
Accompanying drawing 3 is the front view of permanent-magnet synchronous brushless DC motor rotor;
Accompanying drawing 4 is that the A-A of accompanying drawing 3 is to profile;
Accompanying drawing 5 is the structural representation after accompanying drawing 3 removes the magnet steel protective cover.
Mark among the figure: 1, rotating shaft, 2, rotor punching, 3, magnet steel, 4, the cylindrical of rotor punching, 5, the magnet steel protective cover, 6, screw, 7, screw hole, 8, the wedge shape keyway, 9, wedge.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Permanent-magnet synchronous brushless DC motor rotor of the present utility model, its structure comprise rotating shaft 1 and rotor punching 2, and multi-disc rotor punching 2 is superimposed as and is wholely set in rotating shaft 1; Evenly have arc-shaped slot on rotor punching 2 laminations are axial, closely being inlaid with cross section in the groove is the magnet steel 3 of arc.
The position of arc-shaped slot is near cylindrical 4 places of rotor punching, the even adjacent distribution of arc-shaped slot.
The number of arc-shaped slot is 8, the magnet steel 3 that closely to be inlaid with a cross section in each arc-shaped slot be arc.
Rotor punching 2 lamination two ends are fixed with annular magnet steel protective cover 5.
Annular magnet steel protective cover 5 is fixed on rotor punching lamination two ends by 8 screws 6, and screw 6 evenly distributes.
The shaft hole at rotor punching 2 centers is provided with wedge shape keyway 8, and rotating shaft 1 is provided with corresponding wedge 9, and multi-disc rotor punching 2 is superimposed as one and closely is arranged in the rotating shaft 1 by shaft hole.
The thickness of magnet steel 3 is 3～12mm.
Rotating shaft 1 is processed by round steel.
Its processing and fabricating of permanent-magnet synchronous brushless DC motor rotor of the present utility model is very simple and convenient, and processing and fabricating gets final product shown in the by specification accompanying drawing.
Except that the described technical characterictic of specification, be the known technology of those skilled in the art.
Claims (10)
1. the permanent-magnet synchronous brushless DC motor rotor comprises rotating shaft and rotor punching, and the multi-disc rotor punching is superimposed as and is wholely set in rotating shaft; It is characterized in that evenly having arc-shaped slot on the rotor punching lamination axially, closely be inlaid with the magnet steel that cross section is an arc in the groove.
2. permanent-magnet synchronous brushless DC motor rotor according to claim 1 is characterized in that the cylindrical place of the position of arc-shaped slot near rotor punching, the even adjacent distribution of arc-shaped slot.
3. permanent-magnet synchronous brushless DC motor rotor according to claim 1, the number that it is characterized in that arc-shaped slot is 2～16, the magnet steel that closely to be inlaid with a cross section in each arc-shaped slot be arc.
4. permanent-magnet synchronous brushless DC motor rotor according to claim 1 is characterized in that rotor punching lamination two ends are fixed with annular magnet steel protective cover.
5. permanent-magnet synchronous brushless DC motor rotor according to claim 4 is characterized in that annular magnet steel protective cover is fixed on rotor punching lamination two ends by 2～16 screws, and screw evenly distributes.
6. permanent-magnet synchronous brushless DC motor rotor according to claim 1, the shaft hole that it is characterized in that the rotor punching center is provided with the wedge shape keyway, rotating shaft is provided with corresponding wedge, and the multi-disc rotor punching is superimposed as one and closely is arranged in the rotating shaft by shaft hole.
7. permanent-magnet synchronous brushless DC motor rotor according to claim 1 is characterized in that magnet steel adopts the rare earth hydromagnetic material of high energy product to make.
8. permanent-magnet synchronous brushless DC motor rotor according to claim 1, the thickness that it is characterized in that magnet steel is 3～12mm.
9. permanent-magnet synchronous brushless DC motor rotor according to claim 1 is characterized in that rotor punching adopts punching silicon-steel to form.
10. permanent-magnet synchronous brushless DC motor rotor according to claim 1 is characterized in that rotating shaft is processed by round steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201569267U CN201639457U (en) | 2010-04-13 | 2010-04-13 | Permanent magnet synchronous brushless DC motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201569267U CN201639457U (en) | 2010-04-13 | 2010-04-13 | Permanent magnet synchronous brushless DC motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201639457U true CN201639457U (en) | 2010-11-17 |
Family
ID=43083963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201569267U Expired - Fee Related CN201639457U (en) | 2010-04-13 | 2010-04-13 | Permanent magnet synchronous brushless DC motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201639457U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103107617A (en) * | 2011-11-15 | 2013-05-15 | 财团法人工业技术研究院 | Structure of circular arc-shaped magnet rotor of dc motor of fan |
-
2010
- 2010-04-13 CN CN2010201569267U patent/CN201639457U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103107617A (en) * | 2011-11-15 | 2013-05-15 | 财团法人工业技术研究院 | Structure of circular arc-shaped magnet rotor of dc motor of fan |
| CN103107617B (en) * | 2011-11-15 | 2016-01-13 | 财团法人工业技术研究院 | The circular arc magnetite rotor structure of fan d.c. motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANDONG CHENGRUI NEW ENERGY TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SUN ZHAOGANG Effective date: 20120112 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 271000 TAIAN, SHANDONG PROVINCE TO: 271100 LAIWU, SHANDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120112 Address after: 271100, Panlong street, 021 Yang Industrial Park, hi tech Zone, Shandong, Laiwu Patentee after: Shandong Chengrui New Energy Technology Co., Ltd. Address before: 271000 large river potash Geology Team, Daiyue District, Shandong, Tai'an Patentee before: Sun Zhaogang |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20180413 |