CN109004782A - Modular built-in Consequent pole permanent magnet motor rotor - Google Patents
Modular built-in Consequent pole permanent magnet motor rotor Download PDFInfo
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- CN109004782A CN109004782A CN201810832329.2A CN201810832329A CN109004782A CN 109004782 A CN109004782 A CN 109004782A CN 201810832329 A CN201810832329 A CN 201810832329A CN 109004782 A CN109004782 A CN 109004782A
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- 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
- H02K1/2746—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 arranged with the same polarity, e.g. consequent pole type
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- 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]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/12—Machines characterised by the modularity of some components
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
本发明公开了一种模块化的内置式交替极永磁电机转子，包括转子铁心、永磁体和转轴；转子铁心套装在转轴的外周，且采用导磁材料制成；转子铁心包括转子铁心主体和P个分割铁心，其中P为电机极对数；转子铁心主体的外圆周沿周向均布有P个转子铁心槽，每个转子铁心槽均具有至少三个安装平面，三个安装平面与转子中垂线所在平面之间的夹角分别为θ1、θ2和θ3；则40<θ1≤90，10<θ2<50，10<θ3<50；每个安装平面上嵌套一块永磁体；分割铁心的形状与转子铁心槽的形状相同，分割铁心拼接放置在转子铁心槽中，且使每个永磁体与分割铁心中对应的安装平面相接触。本发明能在减少漏磁、提高永磁体利用率的同时，降低加工工艺。
The invention discloses a modular built-in alternating pole permanent magnet motor rotor, which comprises a rotor core, a permanent magnet and a rotating shaft; the rotor core is sleeved on the outer periphery of the rotating shaft and is made of magnetically permeable materials; the rotor core includes a rotor core main body and a rotating shaft. P split cores, where P is the number of pole pairs of the motor; P rotor core slots are uniformly distributed along the outer circumference of the rotor core body, and each rotor core slot has at least three installation planes, and the three installation planes are perpendicular to the center of the rotor. The included angles between the planes where the lines are located are θ 1 , θ 2 and θ 3 respectively; then 40<θ 1 ≤90, 10<θ 2 <50, 10<θ 3 <50; each mounting plane is nested with a permanent Magnet; the shape of the split core is the same as that of the rotor core slot, the split core is spliced and placed in the rotor core slot, and each permanent magnet is in contact with the corresponding installation plane of the split core. The invention can reduce the processing technology while reducing magnetic flux leakage and improving the utilization rate of the permanent magnet.
Description
技术领域technical field
本发明涉及电机制造领域，特别是一种模块化的内置式交替极永磁电机转子。The invention relates to the field of motor manufacturing, in particular to a modular built-in alternating pole permanent magnet motor rotor.
背景技术Background technique
近些年，由于永磁电机具有高转矩密度、高功率密度和高效率等优点，已被广泛应用于家电、电动汽车、风力发电和航空航天等场合。高性能的永磁电机必须采用钕铁硼或钐钴等稀土永磁材料。尽管我国的稀土存储量较多，但是稀土是不可再生能源；加上全球新能源产业的发展，必然推动了稀土价格的进一步上涨。因此，许多专家学者已经致力于提高永磁材料的利用率这一现实的课题。In recent years, due to the advantages of high torque density, high power density and high efficiency, permanent magnet motors have been widely used in home appliances, electric vehicles, wind power generation, aerospace and other occasions. High-performance permanent magnet motors must use rare earth permanent magnet materials such as NdFeB or SmCo. Although my country has a large amount of rare earth storage, rare earth is a non-renewable energy source; coupled with the development of the global new energy industry, it will inevitably promote a further increase in the price of rare earth. Therefore, many experts and scholars have devoted themselves to improving the utilization rate of permanent magnet materials, a realistic topic.
传统的内置式永磁电机，其永磁体置于转子铁心的内部，增加了电机的凸极率和磁阻转矩分量，从而可以获得良好的恒功率运行性能。另外，由于永磁体置于转子铁心的内部，当电机转子运行在比较高的转速时(具有较大的离心力)，转子铁心对永磁体具有保护作用。In the traditional interior permanent magnet motor, the permanent magnet is placed inside the rotor core, which increases the saliency ratio and reluctance torque component of the motor, so that good constant power operation performance can be obtained. In addition, since the permanent magnet is placed inside the rotor core, when the motor rotor runs at a relatively high speed (with a large centrifugal force), the rotor core has a protective effect on the permanent magnet.
同时，也正因为永磁体置于转子铁心的内部，存在一部分永磁磁通经过转子铁心(导磁桥和加强筋)进行闭合，而不经过气隙到定子铁心中。这部分磁通称为漏磁通，较大的漏磁通，降低了永磁体的利用率(每单位体积永磁用量产生的输出转矩)。而且，将永磁体置于转子铁心的内部，这必然增加了转子铁心加工和装配的复杂度。At the same time, because the permanent magnet is placed inside the rotor core, there is a part of the permanent magnetic flux that passes through the rotor core (magnetic bridge and reinforcing rib) to close, without passing through the air gap to the stator core. This part of the magnetic flux is called the leakage flux, and the larger leakage flux reduces the utilization rate of the permanent magnet (the output torque generated by the amount of permanent magnet per unit volume). Moreover, the permanent magnets are placed inside the rotor core, which inevitably increases the complexity of processing and assembling the rotor core.
发明内容Contents of the invention
本发明要解决的技术问题是针对上述现有技术的不足，而提供一种模块化的内置式交替极永磁电机转子，该模块化的内置式交替极永磁电机转子能在减少漏磁、提高永磁体利用率的同时，降低加工工艺。The technical problem to be solved by the present invention is to provide a modular built-in alternating pole permanent magnet motor rotor, which can reduce magnetic flux leakage, While improving the utilization rate of permanent magnets, the processing technology is reduced.
为解决上述技术问题，本发明采用的技术方案是：In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
一种模块化的内置式交替极永磁电机转子，包括转子铁心、永磁体和转轴。A modular built-in alternating pole permanent magnet motor rotor includes a rotor core, permanent magnets and a shaft.
转子铁心套装在转轴的外周，且采用导磁材料制成；转子铁心包括转子铁心主体和P个分割铁心，其中P为电机极对数。The rotor core is set on the outer periphery of the rotating shaft and is made of magnetically permeable material; the rotor core includes a main body of the rotor core and P split cores, where P is the number of pole pairs of the motor.
转子铁心主体的外圆周沿周向均布有P个转子铁心槽，每个转子铁心槽均具有至少三个安装平面，其中的三个安装平面分别为安装平面一、安装平面二和安装平面三；安装平面一与转子中垂线所在平面之间的夹角为θ1，安装平面二与转子中垂线所在平面之间的夹角为θ2，安装平面三与转子中垂线所在平面之间的夹角为θ3；则40<θ1≤90，10<θ2<50，10<θ3<50；每个安装平面上嵌套一块永磁体。P rotor core slots are evenly distributed along the outer circumference of the main body of the rotor core, and each rotor core slot has at least three installation planes, wherein the three installation planes are respectively installation plane 1, installation plane 2 and installation plane 3; The angle between plane 1 and the plane where the rotor mid-perpendicular is located is θ 1 , the angle between the installation plane 2 and the plane where the rotor mid-perpendicular is located is θ 2 , the angle between installation plane 3 and the plane where the rotor mid-perpendicular is located The included angle is θ 3 ; then 40<θ 1 ≤90, 10<θ 2 <50, 10<θ 3 <50; a permanent magnet is nested on each mounting plane.
分割铁心的形状与转子铁心槽的形状相同，分割铁心拼接放置在转子铁心槽中，且使每个永磁体与分割铁心中对应的安装平面相接触。The shape of the split iron core is the same as that of the rotor iron core slot, and the split iron core is spliced and placed in the rotor iron core slot, and each permanent magnet is in contact with the corresponding installation plane of the split iron core.
每个转子铁心槽均具有四个安装平面，四个安装平面分别为安装平面一、安装平面二、安装平面三和安装平面四；安装平面二和安装平面三设置在安装平面一的两侧，安装平面四与安装平面三相邻接；安装平面一与转子中垂线所在平面之间的夹角为θ1，安装平面二与转子中垂线所在平面之间的夹角为θ2，安装平面三与转子中垂线所在平面之间的夹角为θ3，安装平面四与转子中垂线所在平面之间的夹角为θ4；则40<θ1<80，10<θ2<50，10<θ3<50，10<θ4<80。Each rotor core slot has four installation planes, the four installation planes are respectively installation plane 1, installation plane 2, installation plane 3 and installation plane 4; installation plane 2 and installation plane 3 are arranged on both sides of installation plane 1, Installation plane four is adjacent to installation plane three; the angle between installation plane one and the plane where the vertical line of the rotor is located is θ 1 , the angle between installation plane two and the plane where the rotor center vertical line is located is θ 2 , and the installation The included angle between plane 3 and the plane where the rotor mid-perpendicular is located is θ 3 , and the included angle between the installation plane 4 and the plane where the rotor mid-perpendicular is located is θ 4 ; then 40<θ 1 <80, 10<θ 2 < 50, 10 <θ3<50, 10 <θ4<80.
每个转子铁心槽均具有三个安装平面，三个安装平面分别为安装平面一、安装平面二和安装平面三；安装平面二和安装平面三对称设置在安装平面一的两侧；安装平面一与转子中垂线所在平面之间的夹角为θ1，安装平面二与转子中垂线所在平面之间的夹角为θ2，安装平面三与转子中垂线所在平面之间的夹角为θ3，则θ1＝90，10<θ2＝θ3<50。Each rotor core slot has three installation planes, the three installation planes are installation plane 1, installation plane 2 and installation plane 3; installation plane 2 and installation plane 3 are symmetrically arranged on both sides of installation plane 1; installation plane 1 The angle between the plane where the vertical line of the rotor is located is θ 1 , the angle between the second installation plane and the plane where the vertical line of the rotor is located is θ 2 , the angle between the third installation plane and the plane where the vertical line of the rotor is located is θ 3 , then θ 1 =90, 10<θ 2 =θ 3 <50.
永磁体采用平行充磁。The permanent magnets are magnetized in parallel.
本发明具有如下有益效果：The present invention has following beneficial effects:
1.本发明采用交替极结构和模块化，使永磁体和分割转子铁心拼接在转子铁心主体上。在高速旋转时，分割转子铁心和永磁体的离心应力施加到转子铁心主体上，利用转子铁心主体保护了分割转子铁心和永磁体。因此，本发明的转子不需要导磁桥和加强筋，降低了漏磁，提高了永磁体利用率。而且，采用模块化的结构，简化了加工工艺。1. The invention adopts alternating pole structure and modularization, so that the permanent magnet and the divided rotor core are spliced on the main body of the rotor core. During high-speed rotation, the centrifugal stress of the divided rotor core and permanent magnets is applied to the rotor core main body, and the divided rotor core and permanent magnets are protected by the rotor core main body. Therefore, the rotor of the present invention does not need magnetic bridges and reinforcing ribs, which reduces magnetic flux leakage and improves the utilization rate of permanent magnets. Moreover, the modular structure simplifies the processing technology.
2.本电机转子即可电动运行，也可发电运行。2. The rotor of this motor can run electrically or generate electricity.
3.任何传统的内置式永磁电机转子，都可以改进为本发明的结构。3. Any traditional built-in permanent magnet motor rotor can be improved to the structure of the present invention.
附图说明Description of drawings
图1显示了本发明一种模块化的内置式交替极永磁电机转子实施例1的结构示意图。Fig. 1 shows a schematic structural view of Embodiment 1 of a modular interior-type alternating pole permanent magnet motor rotor of the present invention.
图2显示了实施例1中转子铁心主体的结构示意图。Fig. 2 shows a schematic structural view of the main body of the rotor core in Embodiment 1.
图3显示了实施例1中永磁体的磁力线图。FIG. 3 shows the magnetic flux diagram of the permanent magnet in Example 1.
图4显示了本发明一种模块化的内置式交替极永磁电机转子实施例2的结构示意图。Fig. 4 shows a schematic structural diagram of Embodiment 2 of a modular interior-type alternating pole permanent magnet motor rotor of the present invention.
图5显示了实施例2中转子铁心主体的结构示意图。Fig. 5 shows a schematic structural view of the main body of the rotor core in Embodiment 2.
图6显示了实施例1与传统内置式交替极的转矩对比图。Fig. 6 shows the torque comparison graph between Embodiment 1 and the traditional built-in alternating poles.
图7显示了实施例1与传统内置式交替极的永磁体利用率对比图。Fig. 7 shows a comparison chart of permanent magnet utilization ratios between Embodiment 1 and the traditional built-in alternating poles.
其中有：Including:
10.转子铁心；20.转子铁心主体；30.转子铁心槽；31.安装平面一；32.安装平面二；33.安装平面三；34.安装平面四；40.分割铁心；50.永磁体；60.转子中垂线；70.转轴。10. Rotor core; 20. Rotor core body; 30. Rotor core slot; 31. Installation plane 1; 32. Installation plane 2; 33. Installation plane 3; 34. Installation plane 4; 40. Split core; 50. Permanent magnet ; 60. The vertical line of the rotor; 70. The shaft.
具体实施方式Detailed ways
下面结合附图和具体较佳实施方式对本发明作进一步详细的说明。The present invention will be further described in detail below in conjunction with the accompanying drawings and specific preferred embodiments.
如图1至图5所示，一种模块化的内置式交替极永磁电机转子，包括转子铁心10、永磁体50和转轴70。As shown in FIGS. 1 to 5 , a modular built-in alternating pole permanent magnet motor rotor includes a rotor core 10 , a permanent magnet 50 and a rotating shaft 70 .
转子铁心套装在转轴的外周，且采用导磁材料制成。The rotor core is sleeved on the outer periphery of the rotating shaft and is made of magnetically permeable material.
转子铁心包括转子铁心主体20和P个分割铁心40，其中P为电机极对数。The rotor core includes a rotor core body 20 and P split cores 40, where P is the number of pole pairs of the motor.
转子铁心主体的外圆周沿周向均布有P个转子铁心槽30，相邻两个转子铁心槽之间的转子铁心主体形成铁心凸极。P rotor core slots 30 are uniformly distributed along the outer circumference of the rotor core body, and the rotor core body between two adjacent rotor core slots forms core salient poles.
每个转子铁心槽均具有至少三个安装平面，其中的三个安装平面分别为安装平面一、安装平面二和安装平面三；安装平面一与转子中垂线所在平面之间的夹角为θ1，安装平面二与转子中垂线所在平面之间的夹角为θ2，安装平面三与转子中垂线所在平面之间的夹角为θ3；则40<θ1≤90，10<θ2<50，10<θ3<50。Each rotor core slot has at least three installation planes, and the three installation planes are installation plane 1, installation plane 2 and installation plane 3; the angle between installation plane 1 and the plane where the vertical line of the rotor is located is θ 1 , the angle between installation plane 2 and the plane where the vertical line of the rotor is located is θ 2 , the angle between installation plane 3 and the plane where the vertical line of the rotor is located is θ 3 ; then 40<θ 1 ≤90, 10< θ 2 <50, 10<θ 3 <50.
每个安装平面上嵌套一块永磁体。A permanent magnet is nested on each mounting plane.
分割铁心的形状与转子铁心槽的形状相同，分割铁心拼接放置在转子铁心槽中，且使每个永磁体与分割铁心中对应的安装平面相接触。The shape of the split iron core is the same as that of the rotor iron core slot, and the split iron core is spliced and placed in the rotor iron core slot, and each permanent magnet is in contact with the corresponding installation plane of the split iron core.
永磁体优选采用平行充磁，永磁体的磁通可以从分割铁心流出，也可以从气隙流进到分割铁心。The permanent magnet is preferably magnetized in parallel, and the magnetic flux of the permanent magnet can flow out from the split iron core, or flow into the split iron core from the air gap.
本发明以P＝5为例，采用如下两个优选实施例对本发明进行进一步详细说明。The present invention takes P=5 as an example, and uses the following two preferred embodiments to further describe the present invention in detail.
实施例1Example 1
如图1所示，转子铁心包括转子铁心主体20和5个分割铁心40，转子铁心主体的外圆周沿周向均布有5个转子铁心槽30。As shown in FIG. 1 , the rotor core includes a rotor core body 20 and five split cores 40 , and five rotor core slots 30 are uniformly distributed along the outer circumference of the rotor core body.
如图2所示，每个转子铁心槽均具有四个安装平面，四个安装平面分别为安装平面一31、安装平面二32、安装平面三33和安装平面四34；安装平面二和安装平面三设置在安装平面一的两侧，安装平面四与安装平面三相邻接。As shown in Figure 2, each rotor core slot has four installation planes, the four installation planes are respectively installation plane 1 31, installation plane 2 32, installation plane 3 33 and installation plane 4 34; installation plane 2 and installation plane The third is arranged on both sides of the first installation plane, and the fourth installation plane is adjacent to the third installation plane.
安装平面一与转子中垂线所在平面之间的夹角为θ1，安装平面二与转子中垂线所在平面之间的夹角为θ2，安装平面三与转子中垂线所在平面之间的夹角为θ3，安装平面四与转子中垂线所在平面之间的夹角为θ4；则40<θ1<80，10<θ2<50，10<θ3<50，10<θ4<80。The angle between installation plane 1 and the plane where the rotor mid-perpendicular is located is θ 1 , the angle between installation plane 2 and the plane where the rotor mid-perpendicular is located is θ 2 , and the angle between installation plane 3 and the plane where the rotor mid-perpendicular is located The included angle is θ 3 , the included angle between the installation plane 4 and the plane where the vertical line of the rotor is located is θ 4 ; then 40<θ 1 <80, 10<θ 2 <50, 10<θ 3 <50, 10< θ 4 <80.
因而，如图1所示，每个转子铁心槽内嵌套有四块电磁铁，且分割铁心通过永磁体与转子铁心主体拼装为一整体转子。高速旋转时，分割铁心和永磁体的离心应力施加到转子铁心主体上，利用转子铁心主体保护了分割铁心和永磁体。Therefore, as shown in FIG. 1 , four electromagnets are nested in each rotor core slot, and the split cores are assembled with the main body of the rotor core through permanent magnets to form an integral rotor. During high-speed rotation, the centrifugal stress of the split core and permanent magnet is applied to the rotor core main body, and the split core and permanent magnet are protected by the rotor core main body.
本发明采用交替极结构，且是模块化的，没有传统内置永磁电机的导磁桥和加强筋。永磁体的充磁方向，遵循交替极原则。本实例的永磁体采用平行充磁，且永磁体的磁通都是从分割铁心流出到气隙中，如图3所示。在转子铁心主体的铁心凸极上形成了相反的极性，从而构成了10极(5对极)转子。The invention adopts an alternating pole structure and is modular without the magnetic bridge and reinforcing rib of the traditional built-in permanent magnet motor. The magnetization direction of the permanent magnet follows the principle of alternating poles. The permanent magnet in this example adopts parallel magnetization, and the magnetic flux of the permanent magnet flows out from the split iron core into the air gap, as shown in Fig. 3 . Opposite polarities are formed on the core salient poles of the rotor core body, thereby constituting a 10-pole (five pairs of poles) rotor.
另外，本实施例电机转子即可电动运行，也可发电运行。In addition, the rotor of the motor in this embodiment can run either electrically or by generating electricity.
实施例2Example 2
如图4所示，转子铁心包括转子铁心主体20和5个分割铁心40，转子铁心主体的外圆周沿周向均布有5个转子铁心槽30。As shown in FIG. 4 , the rotor core includes a rotor core body 20 and five split cores 40 , and five rotor core slots 30 are uniformly distributed along the outer circumference of the rotor core body.
如图5所示，每个转子铁心槽均具有三个安装平面，三个安装平面分别为安装平面一31、安装平面二32和安装平面三33。As shown in FIG. 5 , each rotor core slot has three installation planes, and the three installation planes are installation plane one 31 , installation plane two 32 and installation plane three 33 .
安装平面二和安装平面三对称设置在安装平面一的两侧；安装平面一与转子中垂线所在平面之间的夹角为θ1，安装平面二与转子中垂线所在平面之间的夹角为θ2，安装平面三与转子中垂线所在平面之间的夹角为θ3，则θ1＝90，10<θ2＝θ3<50。The installation plane 2 and the installation plane 3 are symmetrically arranged on both sides of the installation plane 1; the angle between the installation plane 1 and the plane where the vertical line of the rotor is located is θ 1 ; The angle is θ 2 , and the angle between the installation plane 3 and the plane where the vertical line of the rotor is located is θ 3 , then θ 1 =90, 10<θ 2 =θ 3 <50.
因而，如图4所示，每个转子铁心槽内嵌套有三块电磁铁，且分割铁心通过永磁体与转子铁心主体拼装为一整体转子。高速旋转时，分割铁心和永磁体的离心应力施加到转子铁心主体上，利用转子铁心主体保护了分割铁心和永磁体。每块永磁体的充磁方式与充磁方向与实施例1同。Therefore, as shown in FIG. 4 , three electromagnets are nested in each rotor core slot, and the split cores are assembled with the main body of the rotor core through permanent magnets to form an integral rotor. During high-speed rotation, the centrifugal stress of the split core and permanent magnet is applied to the rotor core main body, and the split core and permanent magnet are protected by the rotor core main body. The magnetization mode and magnetization direction of each permanent magnet are the same as that of embodiment 1.
另外，本实施例电机转子即可电动运行，也可发电运行。In addition, the rotor of the motor in this embodiment can run either electrically or by generating electricity.
本发明采用上述结构后，具有如下有益效果：After the present invention adopts the above structure, it has the following beneficial effects:
1、本发明的转子不需要导磁桥和加强筋，降低了漏磁，提高了永磁体利用率。保证永磁体用量和铜耗相同，本发明实例1和传统内置式交替极永磁电机的转矩，如图6所示；永磁体利用率km(每单位体积永磁体产生的转矩)，如图7所示。1. The rotor of the present invention does not require magnetic bridges and reinforcing ribs, which reduces magnetic flux leakage and improves the utilization rate of permanent magnets. Guarantee that the permanent magnet consumption and copper consumption are identical, the torque of the example 1 of the present invention and traditional built-in alternating pole permanent magnet motor, as shown in Figure 6; Permanent magnet utilization rate km (the torque that per unit volume permanent magnet produces), as Figure 7 shows.
2、采用模块化的结构，简化了加工工艺。2. Modular structure is adopted, which simplifies the processing technology.
以上详细描述了本发明的优选实施方式，但是，本发明并不限于上述实施方式中的具体细节，在本发明的技术构思范围内，可以对本发明的技术方案进行多种等同变换，这些等同变换均属于本发明的保护范围。The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be carried out to the technical solutions of the present invention. These equivalent transformations All belong to the protection scope of the present invention.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208856A (en) * | 2010-03-31 | 2011-10-05 | 富士通将军股份有限公司 | Permanent magnet motor |
| CN107251372A (en) * | 2015-03-02 | 2017-10-13 | 三菱电机株式会社 | The rotor and motor of electric rotating machine |
| CN107659101A (en) * | 2017-09-29 | 2018-02-02 | 珠海格力节能环保制冷技术研究中心有限公司 | Reluctance type Consequent pole permanent magnet motor |
| CN207368847U (en) * | 2017-09-29 | 2018-05-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Reluctance type Consequent pole permanent magnet motor |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208856A (en) * | 2010-03-31 | 2011-10-05 | 富士通将军股份有限公司 | Permanent magnet motor |
| CN107251372A (en) * | 2015-03-02 | 2017-10-13 | 三菱电机株式会社 | The rotor and motor of electric rotating machine |
| CN107659101A (en) * | 2017-09-29 | 2018-02-02 | 珠海格力节能环保制冷技术研究中心有限公司 | Reluctance type Consequent pole permanent magnet motor |
| CN207368847U (en) * | 2017-09-29 | 2018-05-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Reluctance type Consequent pole permanent magnet motor |
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