WO2008067704A1 - A rotor for multiple-pole inner rotor permanent magnet generator - Google Patents

A rotor for multiple-pole inner rotor permanent magnet generator Download PDF

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Publication number
WO2008067704A1
WO2008067704A1 PCT/CN2007/002118 CN2007002118W WO2008067704A1 WO 2008067704 A1 WO2008067704 A1 WO 2008067704A1 CN 2007002118 W CN2007002118 W CN 2007002118W WO 2008067704 A1 WO2008067704 A1 WO 2008067704A1
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WO
WIPO (PCT)
Prior art keywords
rotor
permanent magnet
pole inner
rotor body
generator according
Prior art date
Application number
PCT/CN2007/002118
Other languages
French (fr)
Chinese (zh)
Inventor
Henglin Xiao
Original Assignee
Wuxi Kipor Power Co., Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuxi Kipor Power Co., Ltd filed Critical Wuxi Kipor Power Co., Ltd
Publication of WO2008067704A1 publication Critical patent/WO2008067704A1/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
    • H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]

Definitions

  • the present invention relates to a rotor for a multi-pole inner rotor type permanent magnet generator, and more particularly to a rotor for improving structural safety and improving power generation efficiency, and is suitable for miniaturized, lightweight, and thinned permanent magnet generators. , belongs to the field of generator technology.
  • a rotary electric machine comprising a stator having a plurality of coils and The inner side of the stator is rotatably supported by the rotor core on the rotating shaft, and a plurality of magnets housed in the slit holes provided in the rotor core, and the circumferential direction of the plurality of magnets constituting one magnetic pole Angle, expressed as an electrical angle, is in the range of 150 degrees to 165 degrees.
  • a rotor for a motor disclosed in Japanese Laid-Open Patent Publication No.
  • 2002-44887 which has a rotor for a motor fixed to a plurality of different magnetic poles which are alternately arranged on a rotating shaft and which are alternately arranged in a circumferential direction, and the magnetic poles are arranged in the circumferential direction of the rotor body.
  • a plurality of flat magnets that are viewed as a single line from a plane are embedded.
  • the permanent magnet rotor is generally applied to the generator, and can only be made into a low-power generator.
  • the permanent magnet rotor When the permanent magnet rotor is applied to the inner rotor of the motor, most of them have a rotating shaft and a bearing support method. This structure is difficult to do. To miniaturization, weight reduction and thinning.
  • the object of the present invention is to overcome the above-mentioned deficiencies, and to provide a rotor of a multi-pole inner rotor type permanent magnet generator, which is provided with a plurality of permanent magnet storage grooves in a circumferential direction, and is riveted to form a rotor body, and a plurality of rare earth permanent magnets are accommodated in the circumference of the rotor body; the rotor body is directly fixed on the rotating body of the freely rotatable engine, and the rare earth permanent magnet can be prevented from falling off when the rotor rotates; and the bearingless structure is used to realize the thinning of the generator. Lightweight and miniaturized, it can increase the life of the generator and achieve high output efficiency and high power output.
  • the invention comprises a rotor punching piece and a permanent magnet.
  • the rotor piece is riveted by a rotor punching piece which is arranged with a plurality of permanent magnet receiving grooves in the circumferential direction, and the rotor body permanent magnet receiving groove is directly fixed to the rotating body of the engine after receiving the permanent magnet. on.
  • a permanent gap is provided between the permanent magnets accommodated in the permanent magnet housing groove of the rotor body of the present invention, and a magnetic flux barrier groove is provided in the gap.
  • the invention is provided with a ventilation cooling hole and a rotor positioning hole on the rotor body.
  • the first permanent magnet baffle and the second permanent magnet baffle are fixed to both ends of the permanent magnet accommodated in the permanent magnet housing groove in the rotor body.
  • the permanent magnet of the present invention is formed into a rectangular parallelepiped shape, and the permanent magnet is a neodymium iron boron permanent magnet.
  • the permanent magnet housing groove of the present invention is parallel to the center of rotation of the rotor body and perpendicular to the radial direction of the rotor body.
  • the permanent magnet housing groove in the rotor body of the present invention accommodates an even number of permanent magnets including at least two pairs of poles and two pairs of poles.
  • a rotor punch having a plurality of permanent magnet receiving holes arranged in the circumferential direction is riveted together to form a rotor body, and the rotor body is directly fixed to the rotating body of the engine after accommodating the permanent magnet, without any bearing.
  • the generator rotor is simplified to the simplification and compactness, and the manufacturing cost is saved. 2. Since the ventilation cooling holes are provided on the rotor body rotor punching plate, the heat dissipation performance of the generator can be improved, and the temperature of the rotor during medium and high power operation can be reduced.
  • reducing the weight of the rotor can prevent the occurrence of demagnetization of the permanent magnet at high temperature, thereby increasing the stability of the generator, improving the reliability of the generator, making the generator lighter, and increasing the specific weight of the output power of the generator; 3. Since the permanent magnet baffle plate is used at both ends of the rotor body, that is, after the permanent magnet is accommodated in the rotor body, the rare earth permanent magnet is prevented from falling off when the rotor rotates, so as to prevent accidents and effectively reduce the magnetic leakage of the permanent magnet, thereby generating electricity. The safety of the machine is effectively improved and the power generation efficiency of the generator is effectively improved. 4.
  • the permanent magnets distributed in the direction are NdFeB permanent magnets in a substantially rectangular shape.
  • the NdFeB permanent magnets of this shape can exert the maximum magnetic field characteristics, enabling the generator to obtain a high utilization rate of permanent magnets and improving power generation efficiency; Since the groove of the rotor body accommodating the permanent magnet is parallel to the rotation center of the rotor body and perpendicular to the radial direction of the rotor body, such a permanent magnet arrangement can obtain an optimum magnetic field distribution, which is advantageous for improving the efficiency of the generator;
  • the body houses at least two pairs of permanent magnets including at least two pairs of poles, such a magnetic pole is arranged to facilitate the arrangement of the outer stator of the wire slot, 'obtaining a large generator output power, so that the generator as a whole obtains better overall performance; 7.
  • the structure is compact and simple, minimizing miniaturization, weight reduction, and thinning, providing reasonable cooling energy for high-power output, and making the rotor of the present invention Good stability and durability; 8. Excellent safety, high power generation efficiency, large output power range, etc. . DRAWINGS
  • Figure 1 is a diagram showing the state of use of the generator set on the generator set
  • Figure 2 is a view showing the state of use of the present invention and the stator assembly
  • Figure 3 is a cross-sectional view of the rotor assembly A-A of the present invention.
  • Figure 4 is a schematic view of a rotor punching sheet of the present invention.
  • Fig. 5 is a schematic view showing the distribution of the S pole and the N pole of the permanent magnet in the rotor assembly of the present invention.
  • the embodiment mainly consists of an engine assembly 1, a stator seat 2, a rotor seat 3, a rotor assembly 4, a bolt 5, a stator assembly 6, a bolt 7, a stator seat positioning port 8, a rotor seat positioning port 9, and a stator positioning circle.
  • Stator bolt hole 11 stator winding 12, rotor bolt hole 13, rotor cooling vent 14, permanent magnet 15, first permanent magnet baffle 16, baffle fixing bolt 17, rivet 18, rotor rotation center 19, rotor Positioning circle 20, rotor body 21, rotor punching piece 22, second permanent magnet baffle 23, rotor outer ring 24, baffle bolt hole 25, rivet hole 26, magnetic blocking groove 27, permanent magnet housing groove 28, insert 29 And the rotating body 30 of the engine and the like.
  • the rotor assembly 4 of the present invention forms a generator with a stator assembly 6 including stator windings 12 and blades 29, and forms a generator set with the engine assembly 1.
  • the rotor assembly 4 of the present invention is engaged with the rotor seat positioning opening 9 by the inner positioning circle 20 of the rotor, and is fixedly mounted on the rotor base 3 of the engine assembly 1 by a plurality of bolts 5 through the rotor bolt holes 13, and the rotor seat 3 is fixed.
  • the rotor of the engine is rotated in synchronism with the flywheel of the engine or integrated with the flywheel, and the center of rotation of the rotor 19 coincides with the center of the crankshaft of the engine.
  • the stator assembly 6 including the stator winding 12 and the blade 29 is engaged with the stator seat positioning port 8 of the stator base 2 via the stator positioning circle 10, and is fixedly mounted to the engine assembly 1 by a plurality of bolts 7 through the stator bolt holes 11.
  • the stator body bore is concentrically mounted with the rotor body rotation center 19, and a certain gap is left between the stator body bore and the rotor outer ring 24, which is the gap reduction caused by the expansion of the stator assembly 6 and the rotor assembly 4 after being heated. There is little room to prevent damage caused by the rotor assembly 4 rubbing against the inner bore of the stator as the engine crankshaft rotates.
  • the rotor punching piece 22 is provided with a plurality of permanent magnet receiving grooves 28 arranged in the circumferential direction, and the rivet 18 is riveted by the rivet holes 26 to form the rotor body 21.
  • the outer ring of the rotor body 21 is circumferentially arranged.
  • the permanent magnet housing groove 28 accommodates the permanent magnet 15.
  • the permanent magnet housing groove 28 on the rotor body 21 is parallel to the rotor body rotation center 19 and perpendicular to the radial direction of the rotor body 21.
  • the rotor punching piece 22 of the rotor assembly 4 is provided with a rotor bolt hole 13, a rotor vent hole 14, and a rotor positioning circle 20.
  • the bolt 17 is fixed to the outer ring of the rotor body 21 via the baffle bolt hole 29, and the first permanent magnet baffle 16 and the second permanent magnet baffle plate 23 are provided at both ends of the permanent magnet 15 accommodated in the permanent magnet housing groove 28.
  • the first and second permanent magnet baffles 16, 23 mainly prevent the permanent magnet from flying out during the rotor and cause an accident, and also have a magnetic separation function, and the outer ring 24 of the rotor is provided with a magnetic blocking groove 27 to block the permanent magnet 15
  • the magnetic circuit bypasses between the generators to improve the efficiency of the generator.
  • the inner circumference of the permanent magnet housing groove 28 accommodates an even number of permanent magnets 15 including at least two pairs of poles and two pairs of poles, and the polar S and N poles of the permanent magnet 15
  • the outer circumferences 24 of the rotor are alternately arranged.
  • the permanent magnet 15 is formed into a rectangular parallelepiped shape, and the permanent magnet 15 is a neodymium iron boron permanent magnet.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

A rotor for multiple-pole inner rotor permanent magnet generator, wherein the rotor includes rotor laminations (22) and permanent magnets (15). It is characterized in that the rotor laminations (22) are provided with a number of slots (28) for receiving the permanent magnets (15), which are arranged in circumferential direction. The rotor laminations are riveted to form a rotor body (21). After the slots (28) receive the permanent magnets (15), the rotor body (21) is directly secured to a rotating body (31) of an engine.

Description

一种多极内转子式永磁发电机的转子 技术领域  Rotor of multi-pole inner rotor type permanent magnet generator
本发明涉及一种多极内转子式永磁发电机的转子， 具体地说是涉及一种 提高结构安全性并提高发电效率的转子， 适用于小型化、 轻量化、 薄型化的 永磁发电机， 属于发电机技术领域。  The present invention relates to a rotor for a multi-pole inner rotor type permanent magnet generator, and more particularly to a rotor for improving structural safety and improving power generation efficiency, and is suitable for miniaturized, lightweight, and thinned permanent magnet generators. , belongs to the field of generator technology.
背景技术  Background technique
在本发明公开以前， 在已知的技术中， 永磁铁式转子应用于电动机中有 诸多公开，如申请号为 CN03818684. 5所公开的一种旋转电机包括具有多个线 圈的定子和在所述定子的内侧、 可旋转地被支撑于旋转轴上转子铁芯， 和被 收纳于设在所述转子铁芯内的缝隙孔中的多个磁铁， 构成一个磁极的所述多 个磁铁的圆周方向角度， 以电角度表示， 为 150度〜 165度的范围。 又如专 利号为：特开平 2002-44887所公开的一种电机用转子，其具有固定在转轴上 且沿圆周方向交替的多个不同磁极的电机用转子， 上述各磁极由沿转子本体 圆周方向埋设多个从平面看成一字状的平板磁铁构成。  Prior to the present disclosure, in the prior art, there are many disclosed in the application of a permanent magnet type rotor to an electric motor, as disclosed in the application No. CN03818684. 5, a rotary electric machine comprising a stator having a plurality of coils and The inner side of the stator is rotatably supported by the rotor core on the rotating shaft, and a plurality of magnets housed in the slit holes provided in the rotor core, and the circumferential direction of the plurality of magnets constituting one magnetic pole Angle, expressed as an electrical angle, is in the range of 150 degrees to 165 degrees. Further, a rotor for a motor disclosed in Japanese Laid-Open Patent Publication No. 2002-44887, which has a rotor for a motor fixed to a plurality of different magnetic poles which are alternately arranged on a rotating shaft and which are alternately arranged in a circumferential direction, and the magnetic poles are arranged in the circumferential direction of the rotor body. A plurality of flat magnets that are viewed as a single line from a plane are embedded.
永磁铁转子应用于发电机一般采用外转子式， 并且仅能制成小功率的发 电机，永磁铁转子应用于电机内转子时大多采用有旋转轴并有轴承支承方式， 这种结构很难做到小型化、 轻量化和薄型化。  The permanent magnet rotor is generally applied to the generator, and can only be made into a low-power generator. When the permanent magnet rotor is applied to the inner rotor of the motor, most of them have a rotating shaft and a bearing support method. This structure is difficult to do. To miniaturization, weight reduction and thinning.
发明内容  Summary of the invention
本发明的目的在于克服上述不足之处， 从而提供一种多极内转子式永磁 发电机的转子， 其沿圆周方向布设有若干个永磁铁收纳槽的转子冲片铆接组 成转子体， 并在转子体周圈内收纳若干个稀土永磁铁； 上述转子体直接固定 在发动机自由转动的旋转体上， 能避免稀土永磁铁在转子旋转时脱落； 采用 无轴承结构， 实现了发电机的薄型化、 轻量化和小型化， 能提高发电机的使 用寿命， 并可实现高输出效率和高功率输出。  The object of the present invention is to overcome the above-mentioned deficiencies, and to provide a rotor of a multi-pole inner rotor type permanent magnet generator, which is provided with a plurality of permanent magnet storage grooves in a circumferential direction, and is riveted to form a rotor body, and a plurality of rare earth permanent magnets are accommodated in the circumference of the rotor body; the rotor body is directly fixed on the rotating body of the freely rotatable engine, and the rare earth permanent magnet can be prevented from falling off when the rotor rotates; and the bearingless structure is used to realize the thinning of the generator. Lightweight and miniaturized, it can increase the life of the generator and achieve high output efficiency and high power output.
本发明的主要解决方案是这样实现的：  The main solution of the invention is achieved in this way:
本发明包括转子冲片、 永磁铁， 特征是采用沿圆周方向布设有若干个永 磁铁收纳槽的转子冲片铆接组成转子体， 转子体永磁铁收纳槽收纳永磁铁后 直接固定在发动机的旋转体上。 本发明转子体上永磁铁收纳槽收纳的永磁铁之间设置有一定的间 隙， 并在间隙中设置阻磁槽。 The invention comprises a rotor punching piece and a permanent magnet. The rotor piece is riveted by a rotor punching piece which is arranged with a plurality of permanent magnet receiving grooves in the circumferential direction, and the rotor body permanent magnet receiving groove is directly fixed to the rotating body of the engine after receiving the permanent magnet. on. A permanent gap is provided between the permanent magnets accommodated in the permanent magnet housing groove of the rotor body of the present invention, and a magnetic flux barrier groove is provided in the gap.
本发明在转子体上设有通风冷却孔、 转子定位孔。  The invention is provided with a ventilation cooling hole and a rotor positioning hole on the rotor body.
本发明在转子体上设有永磁铁收纳槽收纳的永磁铁两端分别固定第一永 磁铁档板和第二永磁铁档板。  In the present invention, the first permanent magnet baffle and the second permanent magnet baffle are fixed to both ends of the permanent magnet accommodated in the permanent magnet housing groove in the rotor body.
本发明永磁铁形状制成长方体， 永磁铁为钕铁硼永磁铁。  The permanent magnet of the present invention is formed into a rectangular parallelepiped shape, and the permanent magnet is a neodymium iron boron permanent magnet.
本发明永磁铁收纳槽与转子体旋转中心平行， 并与转子体的径向垂直。 本发明转子体上永磁铁收纳槽收纳至少二对极以上包含二对极的偶数个 永磁铁。  The permanent magnet housing groove of the present invention is parallel to the center of rotation of the rotor body and perpendicular to the radial direction of the rotor body. The permanent magnet housing groove in the rotor body of the present invention accommodates an even number of permanent magnets including at least two pairs of poles and two pairs of poles.
本发明与已有技术相比具有以下优点：  The present invention has the following advantages over the prior art:
1、本发明由于采用沿圆周方向布有多个永磁铁收纳孔的转子冲片用铆 钉铆接在一起组成转子体， 转子体收纳永磁铁后直接固定在发动机的旋转 体上， 无需任何轴承， 能使发电机转子最大限度地简化、 紧凑化， 节约制 造成本； 2、 由于在转子体转子冲片上设有通风冷却孔， 能提高发电机的散 热性能， 降低转子在中大功率运行时的温度， 同时降低转子的重量， 能防 止永磁铁在高温时退磁现象的发生， 以增加发电机的稳定性、 提高发电机 的可靠性以及使发电机轻量化， 并提高发电机的输出功率的比重量； 3、 由 于在转子体的两端即在转子体收纳永磁铁后用永磁铁档板， 保证稀土永磁 铁在转子旋转时不致脱落， 以防事故发生， 并有效减少永磁铁漏磁， 能使 发电机的安全性得到有效提高以及发电机的发电效率得到有效提高； 4、 由 于沿转子体圆周方向分布的永磁体为大致成长方体形状的钕铁硼永磁铁， 此形状的钕铁硼永磁铁可发挥最大磁场特性， 能使发电机获得很高的永磁 铁利用率并提高发电效率； 5、 由于转子体收纳永磁铁的槽与转子体旋转中 心平行， 并与转子体的径向垂直， 这样的永磁铁排列， 可获得最佳的磁场 分布， 有利于提高发电机的效率； 6、 由于转子体收纳至少包含二对极的偶 '数个永磁铁， 这样的磁极配置以利于配置外定子的线槽，' 获得较大的发电 机输出功率， 使发电机整体获得较佳的整机性能； 7、 由于采用多极永磁发 电机的内转子， 其结构紧凑、 简单， 最大限度地小型化、 轻量化、 薄型化， 能提供合理的冷却能作大功率的输出， 并使本发明的转子有很好的稳定性 和耐久性； 8、 具有很高的安全性、 有较高的发电效率、 有较大的输出功率 范围等优良的电性能。 附图说明 1. In the present invention, a rotor punch having a plurality of permanent magnet receiving holes arranged in the circumferential direction is riveted together to form a rotor body, and the rotor body is directly fixed to the rotating body of the engine after accommodating the permanent magnet, without any bearing. The generator rotor is simplified to the simplification and compactness, and the manufacturing cost is saved. 2. Since the ventilation cooling holes are provided on the rotor body rotor punching plate, the heat dissipation performance of the generator can be improved, and the temperature of the rotor during medium and high power operation can be reduced. At the same time, reducing the weight of the rotor can prevent the occurrence of demagnetization of the permanent magnet at high temperature, thereby increasing the stability of the generator, improving the reliability of the generator, making the generator lighter, and increasing the specific weight of the output power of the generator; 3. Since the permanent magnet baffle plate is used at both ends of the rotor body, that is, after the permanent magnet is accommodated in the rotor body, the rare earth permanent magnet is prevented from falling off when the rotor rotates, so as to prevent accidents and effectively reduce the magnetic leakage of the permanent magnet, thereby generating electricity. The safety of the machine is effectively improved and the power generation efficiency of the generator is effectively improved. 4. Due to the roundness along the rotor body The permanent magnets distributed in the direction are NdFeB permanent magnets in a substantially rectangular shape. The NdFeB permanent magnets of this shape can exert the maximum magnetic field characteristics, enabling the generator to obtain a high utilization rate of permanent magnets and improving power generation efficiency; Since the groove of the rotor body accommodating the permanent magnet is parallel to the rotation center of the rotor body and perpendicular to the radial direction of the rotor body, such a permanent magnet arrangement can obtain an optimum magnetic field distribution, which is advantageous for improving the efficiency of the generator; The body houses at least two pairs of permanent magnets including at least two pairs of poles, such a magnetic pole is arranged to facilitate the arrangement of the outer stator of the wire slot, 'obtaining a large generator output power, so that the generator as a whole obtains better overall performance; 7. Due to the use of the inner rotor of the multi-pole permanent magnet generator, the structure is compact and simple, minimizing miniaturization, weight reduction, and thinning, providing reasonable cooling energy for high-power output, and making the rotor of the present invention Good stability and durability; 8. Excellent safety, high power generation efficiency, large output power range, etc. . DRAWINGS
图 1为本发明用于发电机组上使用状态图；  Figure 1 is a diagram showing the state of use of the generator set on the generator set;
图 2为本发明与定子总成使用状态图；  Figure 2 is a view showing the state of use of the present invention and the stator assembly;
图 3为本发明转子总成 A-A剖视图；  Figure 3 is a cross-sectional view of the rotor assembly A-A of the present invention;
图 4为本发明转子冲片示意图；  Figure 4 is a schematic view of a rotor punching sheet of the present invention;
图 5为本发明转子总成中永磁铁 S极、 N极分布示意图。  Fig. 5 is a schematic view showing the distribution of the S pole and the N pole of the permanent magnet in the rotor assembly of the present invention.
具体实施方式  detailed description
下面本发明将结合附图中的实施例作进一步描述：  The invention will be further described below in conjunction with the embodiments of the drawings:
本实施例主要由发动机总成 1、 定子座 2、 转子座 3、 转子总成 4、 螺栓 5、 .定子总成 6、 螺栓 7、 定子座定位口 8、 转子座定位口 9、 定子定位圆 10、 定子螺栓孔 11、 定子绕组 12、 转子螺栓孔 13、 转子冷却通风孔 14、 永磁铁 15、 第一永磁铁档板 16、 档板固定螺栓 17、 铆钉 18、 转子旋转中心 19、 转 子内定位圆 20、 转子体 21、 转子冲片 22、 第二永磁铁档板 23、 转子体外圆 24、 档板螺栓孔 25、铆钉孔 26、 阻磁槽 27、 永磁铁收纳槽 28、 插片 29及发 动机的旋转体 30等组成。  The embodiment mainly consists of an engine assembly 1, a stator seat 2, a rotor seat 3, a rotor assembly 4, a bolt 5, a stator assembly 6, a bolt 7, a stator seat positioning port 8, a rotor seat positioning port 9, and a stator positioning circle. 10. Stator bolt hole 11, stator winding 12, rotor bolt hole 13, rotor cooling vent 14, permanent magnet 15, first permanent magnet baffle 16, baffle fixing bolt 17, rivet 18, rotor rotation center 19, rotor Positioning circle 20, rotor body 21, rotor punching piece 22, second permanent magnet baffle 23, rotor outer ring 24, baffle bolt hole 25, rivet hole 26, magnetic blocking groove 27, permanent magnet housing groove 28, insert 29 And the rotating body 30 of the engine and the like.
图 1、 图 2所示： 本发明的转子总成 4与包含定子绕组 12和插片 29的 定子总成 6组成一发电机， 并,与发动机总成 1组成一发电机组。 本发明的转 子总成 4通过转子内定位圆 20与转子座定位口 9配合，并用多个螺栓 5通过 转子螺栓孔 13将其固定安装在发动机总成 1的转子座 3上，转子座 3固定到 发动机的飞轮上或与飞轮制成一体与发动机的曲轴同步旋转， 且使转子旋转 中心 19与发动机的曲轴的中心重合。包含定子绕组 12和插片 29的定子总成 6通过定子定位圆 10与定子座 2的定子座定位口 8配合，并用多个螺栓 7通 过定子螺栓孔 11将其固定安装在发动机总成 1的定子座 2上，定子体内孔与 转子体旋转中心 19同心安装， 定子体内孔与转子体外圆 24之间留有一定的 间隙， 为定子总成 6及转子总成 4受热后膨胀引起的间隙减小留有余地， 以 防止转子总成 4随发动机曲轴旋转时摩擦定子内孔而引起的损坏。  1 and 2: The rotor assembly 4 of the present invention forms a generator with a stator assembly 6 including stator windings 12 and blades 29, and forms a generator set with the engine assembly 1. The rotor assembly 4 of the present invention is engaged with the rotor seat positioning opening 9 by the inner positioning circle 20 of the rotor, and is fixedly mounted on the rotor base 3 of the engine assembly 1 by a plurality of bolts 5 through the rotor bolt holes 13, and the rotor seat 3 is fixed. The rotor of the engine is rotated in synchronism with the flywheel of the engine or integrated with the flywheel, and the center of rotation of the rotor 19 coincides with the center of the crankshaft of the engine. The stator assembly 6 including the stator winding 12 and the blade 29 is engaged with the stator seat positioning port 8 of the stator base 2 via the stator positioning circle 10, and is fixedly mounted to the engine assembly 1 by a plurality of bolts 7 through the stator bolt holes 11. On the stator base 2, the stator body bore is concentrically mounted with the rotor body rotation center 19, and a certain gap is left between the stator body bore and the rotor outer ring 24, which is the gap reduction caused by the expansion of the stator assembly 6 and the rotor assembly 4 after being heated. There is little room to prevent damage caused by the rotor assembly 4 rubbing against the inner bore of the stator as the engine crankshaft rotates.
图 3、 图 4所示： 本发明采用沿圆周方向布设有若干个永磁铁收纳槽 28 的转子冲片 22用铆钉 18通过铆钉孔 26铆接组成转子体 21，转子体 21外圈 内环周设有永磁铁收纳槽 28收纳永磁铁 15。转子体 21上的永磁铁收纳槽 28 与转子体旋转中心 19平行， 并与转子体 21的径向垂直。 转子总成 4的转子 冲片 22上设有转子螺栓孔 13、 转子通风孔 14、 转子定位圆 20。 用档板固定 螺栓 17通过档板螺栓孔 29固定在转子体 21外圈内环周设有永磁铁收纳槽 28收纳的永磁铁 15两端的有第一永磁铁档板 16和第二永磁铁档板 23。第一 和第二永磁铁档板 16、 23主要是防止永磁铁在转子时飞出而发生事故，另外 还兼有隔磁作用， 转子外圆 24上设有阻磁槽 27, 阻隔永磁铁 15间的磁路旁 通， 提高发电机的效率。 3 and 4: In the present invention, the rotor punching piece 22 is provided with a plurality of permanent magnet receiving grooves 28 arranged in the circumferential direction, and the rivet 18 is riveted by the rivet holes 26 to form the rotor body 21. The outer ring of the rotor body 21 is circumferentially arranged. The permanent magnet housing groove 28 accommodates the permanent magnet 15. The permanent magnet housing groove 28 on the rotor body 21 is parallel to the rotor body rotation center 19 and perpendicular to the radial direction of the rotor body 21. The rotor punching piece 22 of the rotor assembly 4 is provided with a rotor bolt hole 13, a rotor vent hole 14, and a rotor positioning circle 20. Fixed with a baffle The bolt 17 is fixed to the outer ring of the rotor body 21 via the baffle bolt hole 29, and the first permanent magnet baffle 16 and the second permanent magnet baffle plate 23 are provided at both ends of the permanent magnet 15 accommodated in the permanent magnet housing groove 28. The first and second permanent magnet baffles 16, 23 mainly prevent the permanent magnet from flying out during the rotor and cause an accident, and also have a magnetic separation function, and the outer ring 24 of the rotor is provided with a magnetic blocking groove 27 to block the permanent magnet 15 The magnetic circuit bypasses between the generators to improve the efficiency of the generator.
如图 5所示： 在转子体 21上永磁铁收纳槽 28外圈内环周收纳至少二对 极以上包含二对极的偶数个永磁铁 15， 永磁铁 15的极性 S极与 N极沿转子 体外圆 24交替排列。永磁铁 15形状制成长方体，永磁铁 15为钕铁硼永磁铁。  As shown in Fig. 5, on the rotor body 21, the inner circumference of the permanent magnet housing groove 28 accommodates an even number of permanent magnets 15 including at least two pairs of poles and two pairs of poles, and the polar S and N poles of the permanent magnet 15 The outer circumferences 24 of the rotor are alternately arranged. The permanent magnet 15 is formed into a rectangular parallelepiped shape, and the permanent magnet 15 is a neodymium iron boron permanent magnet.

Claims

权 利 要 求 Rights request
1、 一种多极内转子式永磁发电机的转子， 包括转子冲片 （22)、 永磁铁 ( 15 )，其特征是沿圆周方向布有若干个永磁铁收纳槽（28)的转子冲片（22) 铆接组成转子体（21 )， 转子体（21)上永磁铁收纳槽（28)收纳永磁铁（15) 直接固定在发动机的旋转体 （30) 上。 A rotor for a multi-pole inner rotor type permanent magnet generator, comprising a rotor punching piece (22) and a permanent magnet (15), characterized in that a rotor punching of a plurality of permanent magnet receiving grooves (28) is arranged in a circumferential direction The piece (22) is swaged to form a rotor body (21), and the permanent magnet housing groove (28) on the rotor body (21) houses the permanent magnet (15) directly fixed to the rotating body (30) of the engine.
2、根据权利要求 1所述的一种多极内转子式永磁发电机的转子，其特征 在于所述的转子体 （21) 上永磁铁收纳槽 （28) 收纳的永磁铁 （15) 之间设 有间隙， 并在间隙中设置阻磁槽 （27)。  The rotor of a multi-pole inner rotor type permanent magnet generator according to claim 1, characterized in that the permanent magnet (15) accommodated in the permanent magnet housing groove (28) of the rotor body (21) A gap is provided between them, and a magnetic resistance groove (27) is provided in the gap.
3、根据权利要求 1或 2所述的一种多极内转子式永磁发电机的转子，其 特征在于所述的转子体 （21 ) 上设有通风冷却孔 （14) 及转子定位圆 （20)。  The rotor of a multi-pole inner rotor type permanent magnet generator according to claim 1 or 2, characterized in that the rotor body (21) is provided with a ventilation cooling hole (14) and a rotor positioning circle ( 20).
4、根据权利要求 3所述的一种多极内转子式永磁发电机的转子，其特征 在于所述的转子体（21 ) 上永磁铁收纳槽 （28) 收纳的永磁铁 （15) 两端分 别固定第一永磁铁档板 （16) 和第二永磁铁档板 （23)。  A rotor for a multi-pole inner rotor type permanent magnet generator according to claim 3, wherein the permanent magnet (15) of the permanent magnet housing groove (28) on the rotor body (21) is The first permanent magnet baffle (16) and the second permanent magnet baffle (23) are respectively fixed at the ends.
5、根据权利要求 4所述的一种多极内转子式永磁发电机的转子，其特征 在于所述的永磁铁（15) 形状制成长方体， 永磁铁 （15) 为钕铁硼永磁铁。  The rotor of a multi-pole inner rotor type permanent magnet generator according to claim 4, wherein the permanent magnet (15) is formed into a rectangular parallelepiped shape, and the permanent magnet (15) is a neodymium iron boron permanent magnet. .
6、根据权利要求 1或 2或 4或 5所述的一种多极内转子式永磁发电机的 转子， 其特征在于所述的永磁铁收纳槽（28)与转子体旋转中心（19)平行， 并与转子体 （21 ) 的径向垂直。  6. A rotor for a multi-pole inner rotor type permanent magnet generator according to claim 1 or 2 or 4 or 5, characterized in that said permanent magnet housing groove (28) and rotor body rotation center (19) Parallel and perpendicular to the radial direction of the rotor body (21).
7、根据权利要求 6所述的一种多极内转子式永磁发电机的转子，其特征 在于所述的转子体 （21) 上永磁铁收纳槽 （28) 收纳至少二对极以上包含二 对极的偶数个永磁铁 （15)。  The rotor of a multi-pole inner rotor type permanent magnet generator according to claim 6, wherein the rotor body (21) has a permanent magnet housing groove (28) that accommodates at least two poles and contains two An even number of permanent magnets (15).
PCT/CN2007/002118 2006-12-07 2007-07-11 A rotor for multiple-pole inner rotor permanent magnet generator WO2008067704A1 (en)

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CNB2006100981883A CN100452618C (en) 2006-12-07 2006-12-07 Rotor of multipole internal rotor permanent magnet generator
CN200610098188.3 2006-12-07

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JP2013211931A (en) 2010-10-04 2013-10-10 Nippon Densan Corp Rotor and motor
CN104158327B (en) * 2014-08-27 2016-06-08 南京磁谷科技有限公司 A kind of pure iron mortice lock is tightly fixed on the structure on rotor and the method that is locked

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