CN103730969B - The assembly method of the rotor structure of brushless motor of the Interior permanent magnet cutting orientation magnetizing of assembled piece type - Google Patents
The assembly method of the rotor structure of brushless motor of the Interior permanent magnet cutting orientation magnetizing of assembled piece type Download PDFInfo
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- CN103730969B CN103730969B CN201310705654.XA CN201310705654A CN103730969B CN 103730969 B CN103730969 B CN 103730969B CN 201310705654 A CN201310705654 A CN 201310705654A CN 103730969 B CN103730969 B CN 103730969B
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- rotor punching
- bracing frame
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Abstract
The invention provides a kind of assembly method of rotor structure of brushless motor of Interior permanent magnet cutting orientation magnetizing of assembled piece type, comprising: rotor punching assembly, bracing frame (2), magnet steel (3), rivet (4), dividing plate (5) and rotating shaft (6); Separate between rotor punching assembly, magnet steel (3) is at the inside cutting orientation magnetizing of described rotor structure of brushless motor; Rotor punching assembly is overrided to form by rivet (4) is interspersed primarily of multiple rotor punching (1), rotor punching (1) is arranged on bracing frame (2) in the mode of splicing under the effect of rivet (4), and (1) is provided with rib to rotor punching; Be respectively arranged with dividing plate (5) on the both sides of magnet steel (3), rotating shaft (6) is arranged in the centre bore of bracing frame (2).The present invention also provides corresponding assembly method and motor.The present invention effectively can reduce rotor leakage, improves motor performance, and coordinates firmly, and magnet steel can not throw away, and magnet steel, not just to air gap, effectively improves anti-demagnetization capability, and eliminates traditional narrow limit every magnetic bridge, significantly improves the manufacturability of motor.
Description
Technical field
The present invention relates to motor rotor construction, particularly relate to a kind of motor rotor construction of brushless, permanently Interior permanent magnet cutting orientation magnetizing.
Background technology
The structure that traditional rotor structure of brushless motor adopts Surface Mount magnet steel or built-in radial to magnetize, in actual applications, under limited motor volume, increase the rated output power of motor, radial magnetize structure be subject to volume restriction enough magnetic fluxs can not be provided, and cutting orientation magnetizing can realize two pieces of magnet steel parallel connections provides magnetic flux, significantly improve air-gap flux, Rated motor power output is increased, but cutting orientation magnetizing is narrower every magnetic bridge size, and not easily process, production cost is more expensive, and leakage field phenomenon can be caused every the existence of magnetic bridge, motor performance is reduced.
Summary of the invention
For defect of the prior art, the object of this invention is to provide a kind of realistic production and processing and effectively can reduce motor flux leakage, improving the rotor structure of brushless motor of the Interior permanent magnet cutting orientation magnetizing of a kind of assembled piece type of motor performance.
The rotor structure of brushless motor of the Interior permanent magnet cutting orientation magnetizing of assembled piece type provided by the invention, because bracing frame adopts non-magnet material, and rotor assembly is separate, effectively can reduce rotor leakage, improves motor performance.Adopt dovetail groove to coordinate in addition between rotor punching with bracing frame, coordinate firmly, rotor punching is provided with rib, and make rotor in the situation of running up, magnet steel also can not throw away, and magnet steel, not just to air gap, effectively improves anti-demagnetization capability.Invention removes traditional narrow limit every magnetic bridge, significantly improve the manufacturability of motor.
Particularly, according to the rotor structure of brushless motor of the Interior permanent magnet cutting orientation magnetizing of assembled piece type provided by the invention, comprising: rotor punching assembly, bracing frame 2, magnet steel 3, rivet 4, dividing plate 5 and rotating shaft 6;
Bracing frame 2 adopts non-magnet material to make, and bracing frame 2 is provided with multiple rotor punching assembly and magnet steel 3, and rotor punching assembly and magnet steel 3 are evenly alternately distributed in the circumference of bracing frame 2; Separate between rotor punching assembly, magnet steel 3 is at the inside cutting orientation magnetizing of described rotor structure of brushless motor;
Rotor punching assembly is overrided to form by rivet 4 is interspersed primarily of multiple rotor punching 1, rotor punching 1 is arranged on bracing frame 2 in the mode of splicing by the location hole of dividing plate 5 under the effect of the rivet 4 matched with the location hole of dividing plate 5, and rotor punching 1 is provided with rib;
Be respectively arranged with dividing plate 5 on the both sides of magnet steel 3, dividing plate 5 adopts non-magnet material to make, and rotor punching assembly is connected with dividing plate 5 between the dividing plate 5 on magnet steel 3 both sides and by rivet 4 locates; Rotating shaft 6 is arranged in the centre bore of bracing frame 2.
Preferably, bracing frame 2 comprises dovetail groove, and rotor punching 1 comprises the location structure matched with dovetail groove.
Preferably, each pole field of described rotor structure of brushless motor is provided by two panels magnet steel 3 parallel connection.
Preferably, rotor punching assembly even circumferential is assembled in multiple magnetic shoe grooves bracing frame 2 being formed circumference uniform distribution, and each magnet steel 3 inserts in corresponding magnetic shoe groove successively according to the mode that N pole, position, S pole replace.
Preferably, the shape of magnet steel 3 is cuboid.
According to the assembly method of the rotor structure of brushless motor of the Interior permanent magnet cutting orientation magnetizing of above-mentioned assembled piece type provided by the invention, comprise the steps:
Step 1: first rotor punching 1 is laminated into multiple rotor punching assembly by rivet 4;
Step 2: by the dovetail groove of rotor punching assembly circumference uniform distribution press-in bracing frame 2, make rotor punching assembly be arranged on bracing frame 2, rotor punching assembly even circumferential is assembled in multiple magnetic shoe grooves bracing frame 2 being formed circumference uniform distribution;
Step 3: on press-in dividing plate 5 to the bracing frame 2 in the both sides of rotor punching assembly;
Step 4: in the magnetic shoe groove formed after each magnet steel 3 is inserted the combination of rotor punching assembly successively according to the mode that N pole, position, S pole replace, and surface coating is carried out to magnet steel 3;
Step 5: on another side press-in dividing plate 5 to the bracing frame 2 in the both sides of rotor punching assembly;
Step 6: make the dividing plate 5 that rivet 4 interts into rotor punching assembly and rotor punching assembly both sides, rivet 4 end face of riveting tightly, makes rotor punching 1, bracing frame 2, magnet steel 3 and dividing plate 5 install under rivet 4 acts on and is positioned together;
Step 7: centre bore rotating shaft 6 being pressed into bracing frame 2;
Step 8: carry out duplicate removal dynamic balance calibration on dividing plate 5, finally obtains a motor rotor component.
According to brshless DC motor provided by the invention, described brshless DC motor comprises the rotor structure of brushless motor of the Interior permanent magnet cutting orientation magnetizing of above-mentioned assembled piece type.
Compared with prior art, the present invention has following beneficial effect:
(1) rotor punching is provided with the location structure matched with dovetail groove, rotor punching is provided with the location hole combined with rivet, bracing frame and dividing plate adopt non-magnet material, this structure makes between each rotor punching assembly separate, eliminate every magnetic bridge structure, effectively reduce motor flux leakage, improve magnet steel utilance, improve motor performance.
(2) rotor punching is provided with rib, and rotor two end caps are provided with two non-magnetic dividing plates, effectively improve the constant intensity of magnet steel, are applicable to the motor of High Rotation Speed.
(3) processing technology of each parts is simple, and assembling process is simple, and the end cap at two ends may be used for balance duplicate removal and corrects in addition, can the realization batch production of less expensive.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:
Fig. 1 is structural representation of the present invention;
Fig. 2 is that the AA of Fig. 1 is to cross-sectional view;
Fig. 3 is explosive view of the present invention.
In figure:
1 is rotor punching;
2 is non-magnet material bracing frame;
3 is magnet steel;
4 is rivet;
5 is dividing plate;
6 is rotating shaft.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, some distortion and improvement can also be made.These all belong to protection scope of the present invention.
Electric machine structure of the present invention is provided by the parallel connection of two panels magnet steel due to each pole field of rotor, can obtain very high air-gap field intensity, can reach higher power of motor under fixing motor volume; Magnet steel is fixed by rotor rib, and mechanical strength is high, can adapt to pot motor; Adopt novel assembling mode can avoid, every the narrow shortcoming causing the bad realization of Sheet Metal Forming Technology of magnetic bridge, being convenient to realize large batch of low cost manufacture.
Particularly, as shown in Figure 1 and Figure 2, the rotor structure of brushless motor of the Interior permanent magnet cutting orientation magnetizing of assembled piece type of the present invention, comprises rotor punching 1, bracing frame 2, magnet steel 3, rivet 4, dividing plate 5 and rotating shaft 6.Wherein, rotor punching 1 is silicon steel sheet, and bracing frame 2 and dividing plate 5 adopt non-magnet material (such as aluminium alloy, stainless steel, engineering plastics etc.) to make, and magnet steel 3 adopts NdFeB material to make, rivet 4 adopts mild steel permeability magnetic material to make, and rotating shaft 6 adopts mild steel material to make.
In preference, bracing frame 2 is provided with dovetail groove location structure, and as shown in Figure 2, dovetail groove quantity is equal with motor pole number, and corresponding rotor punching 1 is also provided with location structure and matches with bracing frame 2.Magnet steel 3 is built in internal rotor and cutting orientation magnetizing, and the shape of magnet steel 3 is cuboid; Rotor punching 1 laminates into a rotor punching assembly under rivet 4 acts on, and rotor punching assembly is separate, and magnet steel 3 and rotor punching assembly even circumferential are alternately distributed; Bracing frame 2 and dividing plate 5 adopt non-magnet material and are provided with location structure, dividing plate 5 has location hole, and rotor punching 1 is fixed on non-magnet material bracing frame 2 in the mode of splicing by the location hole of non-magnet material bracing frame 2 and dividing plate 5 under the effect of rivet 4; Magnet steel 3 can prevent from axially throwing away under the effect of two side partitions 5; Rotor punching 1 devises rib, can prevent magnet steel 3 from flying out under the effect of high speed centrifugation power.
The assembling process of the rotor structure of brushless motor of the Interior permanent magnet cutting orientation magnetizing of assembled piece type provided by the invention is as follows:
Step 1: first rotor punching 1 is laminated into multiple rotor punching assembly by rivet 4;
Step 2: by the dovetail groove of rotor punching assembly circumference uniform distribution press-in bracing frame 2, make rotor punching assembly be fixed on bracing frame 2;
Step 3: on press-in dividing plate 5 to the bracing frame 2 in the both sides (i.e. the both sides of rotor punching assembly) of magnet steel 3;
Step 4: as shown in Figure 2, in the magnetic shoe groove formed after each magnet steel 3 is inserted the combination of rotor punching assembly successively according to the mode that N pole, position, S pole replace, namely the antipode between the upper adjacent magnet steel 3 of circumference is N pole or is S pole, and carries out surface coating to magnet steel 3;
Step 5: on another side press-in dividing plate 5 to the bracing frame 2 in the both sides (i.e. the both sides of rotor punching assembly) of magnet steel 3;
Step 6: make the dividing plate 5 that rivet 4 interts into rotor punching assembly and rotor punching assembly both sides, rivet 4 end face of riveting tightly, makes rotor punching 1, bracing frame 2, magnet steel 3 and dividing plate 5 be fixed together under rivet 4 acts on;
Step 7: centre bore rotating shaft 6 being pressed into bracing frame 2;
Step 8: carry out duplicate removal dynamic balance calibration on dividing plate 5, finally obtains a motor rotor component.
Above specific embodiments of the invention are described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (1)
1. an assembly method for the rotor structure of brushless motor of the Interior permanent magnet cutting orientation magnetizing of assembled piece type, is characterized in that, comprise the steps:
Step 1: first rotor punching (1) is laminated into multiple rotor punching assembly by rivet (4);
Step 2: by the dovetail groove of rotor punching assembly circumference uniform distribution press-in bracing frame (2), make rotor punching assembly be arranged on bracing frame (2), rotor punching assembly even circumferential is assembled in the upper multiple magnetic shoe grooves forming circumference uniform distribution of bracing frame (2);
Step 3: press-in dividing plate (5) in the both sides of rotor punching assembly is on bracing frame (2);
Step 4: in the magnetic shoe groove formed after each magnet steel (3) is inserted the combination of rotor punching assembly successively according to the mode that N pole, position, S pole replace, and surface coating is carried out to magnet steel (3);
Step 5: another side press-in dividing plate (5) in the both sides of rotor punching assembly is on bracing frame (2);
Step 6: make the dividing plate (5) that rivet (4) interts into rotor punching assembly and rotor punching assembly both sides, to rivet tightly rivet (4) end face, the installation under rivet (4) effect of rotor punching (1), bracing frame (2), magnet steel (3) and dividing plate (5) is positioned together;
Step 7: by the centre bore of rotating shaft (6) press-in bracing frame (2);
Step 8: carry out duplicate removal dynamic balance calibration on dividing plate (5), finally obtains a motor rotor component;
The rotor structure of brushless motor of the Interior permanent magnet cutting orientation magnetizing of assembled piece type, comprising: rotor punching assembly, bracing frame (2), magnet steel (3), rivet (4), dividing plate (5) and rotating shaft (6);
Bracing frame (2) adopts non-magnet material to make, bracing frame (2) is provided with multiple rotor punching assembly and magnet steel (3), rotor punching assembly and magnet steel (3) are evenly alternately distributed in the circumference of bracing frame (2); Separate between rotor punching assembly, magnet steel (3) is at the inside cutting orientation magnetizing of described rotor structure of brushless motor;
Rotor punching assembly is overrided to form by rivet (4) is interspersed primarily of multiple rotor punching (1), rotor punching (1) is arranged on bracing frame (2) in the mode of splicing under the effect of the rivet (4) matched with the location hole of dividing plate (5) by the location hole of dividing plate (5), and (1) is provided with rib to rotor punching;
Dividing plate (5) is respectively arranged with on the both sides of magnet steel (3), dividing plate (5) adopts non-magnet material to make, and is connected locates between the dividing plate (5) that rotor punching assembly is positioned at magnet steel (3) both sides and by rivet (4) with dividing plate (5); Rotating shaft (6) is arranged in the centre bore of bracing frame (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310705654.XA CN103730969B (en) | 2013-12-19 | 2013-12-19 | The assembly method of the rotor structure of brushless motor of the Interior permanent magnet cutting orientation magnetizing of assembled piece type |
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| CN201310705654.XA CN103730969B (en) | 2013-12-19 | 2013-12-19 | The assembly method of the rotor structure of brushless motor of the Interior permanent magnet cutting orientation magnetizing of assembled piece type |
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| CN103730969A CN103730969A (en) | 2014-04-16 |
| CN103730969B true CN103730969B (en) | 2016-04-06 |
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| CN108631481B (en) * | 2017-03-23 | 2020-07-10 | 建准电机工业股份有限公司 | Ceiling fan motor |
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| CN105226858A (en) * | 2015-10-26 | 2016-01-06 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of rotor and there is its motor |
| CN105932835A (en) * | 2016-06-29 | 2016-09-07 | 无锡新大力电机有限公司 | Rotor production technique |
| CN107378460B (en) * | 2017-07-25 | 2020-01-14 | 武汉源海博创科技有限公司 | Permanent magnet installation tool and method for rotor of electromagnetic actuator |
| CN108092471B (en) * | 2018-02-12 | 2024-01-09 | 江阴市海达电机冲片有限公司 | Automatic assembly machine for block-spliced type built-in magnetic steel brushless motor rotor |
| CN110277852A (en) * | 2019-07-25 | 2019-09-24 | 东莞市深鹏电子有限公司 | A kind of production method of rotor and rotor |
| CN112564350B (en) * | 2019-09-26 | 2022-04-01 | 广东威灵电机制造有限公司 | Motor, household appliance and manufacturing method of motor |
| CN112087082A (en) * | 2020-09-04 | 2020-12-15 | 东南大学 | Permanent magnet synchronous motor rotor, assembling mode and motor |
| WO2023274364A1 (en) * | 2021-06-30 | 2023-01-05 | 上海法雷奥汽车电器系统有限公司 | Motor rotor and motor |
| WO2023108908A1 (en) * | 2021-12-17 | 2023-06-22 | 淮安威灵电机制造有限公司 | Prefabricated rotor punching sheet, rotor assembly, electric motor and electrical device |
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| JP4090985B2 (en) * | 2003-12-02 | 2008-05-28 | 信越化学工業株式会社 | Magnetic field generator for multipole magnetron plasma |
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| CN103730969A (en) | 2014-04-16 |
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Address after: 201108 Minhang District City, Shanghai Road, No. 2060, 1-3 floor, 5 Patentee after: Xin'an Naida drive technology (Shanghai) Limited by Share Ltd Address before: 201108 Minhang District City, Shanghai Road, No. 2060, 1-3 floor, 5 Patentee before: Xinan Naida Drive Technology (Shanghai) Co.,Ltd. |
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