CN112671199A - High-power permanent magnet brushless motor - Google Patents
High-power permanent magnet brushless motor Download PDFInfo
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- CN112671199A CN112671199A CN202110077537.8A CN202110077537A CN112671199A CN 112671199 A CN112671199 A CN 112671199A CN 202110077537 A CN202110077537 A CN 202110077537A CN 112671199 A CN112671199 A CN 112671199A
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- permanent magnet
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- brushless motor
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000004804 winding Methods 0.000 claims abstract description 13
- 238000009413 insulation Methods 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 7
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 6
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims description 3
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 3
- -1 neodymium-iron-boron rare earth Chemical class 0.000 claims description 3
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 239000013585 weight reducing agent Substances 0.000 claims description 3
- 239000000243 solution Substances 0.000 description 6
- 238000005457 optimization Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention relates to a high-power permanent magnet brushless motor, which comprises a stator module and a rotor module, wherein the stator module comprises a non-lead side framework, a stator winding, insulating slot paper, a stator core and a lead side framework, the non-lead side framework and the lead side framework are respectively arranged at two ends of the stator core, a plurality of teeth are uniformly distributed on the inner side of the stator core, the inner sides of the teeth are of an arc structure, a tooth slot is formed between every two adjacent teeth, the insulating slot paper is inserted into the stator winding one by one for insulation protection, and the stator winding is inserted into the tooth slot one by one; the rotor module comprises a balance block, a rotor end plate, a rotor iron core and an electromagnetic block, wherein the electromagnetic block is inserted into the rotor iron core, the rotor end plate and the balance block are sequentially arranged at two ends of the rotor iron core, and the rotor end plate, the balance block and the rotor iron core are fixedly connected through rivets. The high-power permanent magnet brushless motor disclosed by the invention is structurally designed and optimized for the width of the magnetic steel of the motor rotor and the yoke part of the rotor, and has the advantages of high power, high efficiency and low cogging torque.
Description
Technical Field
The invention relates to the field of magnetors, in particular to a high-power permanent magnet brushless motor.
Background
An electric machine is an electromagnetic mechanical device which realizes energy conversion and transmission by utilizing interaction of electricity and magnetism, and the electric machine in a broad sense comprises an electric motor and a generator. The motors absorb electric energy from an electric system and output mechanical energy to a mechanical system, and various types of motors are widely applied to various departments of national economy and household appliances and are mainly used as power for driving various mechanical devices; the generator absorbs mechanical energy from the mechanical system and outputs electric energy to the electrical system, and the technical progress of the generator and other related equipment enables people to generate electricity by utilizing energy sources such as heat energy, water energy, nuclear energy, wind energy, human solar energy, biomass energy and the like, and provides necessary electric energy for various departments of national economy and vast urban and rural residents of factories.
The brushless motor is one of the motor types, and has the advantages of high efficiency, good control capability, durability, low noise and the like, so that the brushless motor is widely applied, and therefore, the development of a high-power permanent magnet brushless motor is of great significance.
Disclosure of Invention
The invention aims to provide a high-power permanent magnet brushless motor which is used for providing a motor with high power, high efficiency and low cogging torque.
The invention provides a high-power permanent magnet brushless motor which comprises a stator module and a rotor module, wherein the stator module is sleeved on the periphery of the rotor module and comprises a non-lead side framework, a stator winding, insulating slot paper, a stator core and a lead side framework, the non-lead side framework and the lead side framework are respectively arranged at two ends of the stator core, a plurality of teeth are uniformly distributed on the inner side of the stator core, the teeth are of a T-shaped structure, the inner sides of the teeth are of arc structures, the inner arc structures of all the teeth form the inner diameter of the stator core, a tooth slot is formed between every two adjacent teeth, the insulating slot paper is inserted into the stator winding one by one for insulation protection, and the stator winding is inserted into the tooth slot one by one; the rotor module comprises a balance block, a rotor end plate, a rotor iron core and an electromagnetic block, wherein the electromagnetic block is inserted into the rotor iron core, the rotor end plate and the balance block are sequentially arranged at two ends of the rotor iron core, and the rotor end plate, the balance block and the rotor iron core are fixedly connected through rivets.
Furthermore, the non-lead side framework and the lead side framework are both of a PBT/PBS resin material injection molding integrated structure, mounting hole positions are arranged at two ends of the stator core, and the non-lead side framework and the lead side framework are respectively buckled on the mounting hole positions of the stator core through clamping points.
Furthermore, the stator core and the rotor core are both folded through a plurality of silicon steel sheet buckles.
Further, the material of electromagnetic block is neodymium-iron-boron rare earth magnetic steel.
Furthermore, the corresponding positions of the rotor core, the rotor end plate and the balance block are provided with openings for weight reduction and ventilation cooling.
Furthermore, the insulating slot paper is made of M238 material.
The technical scheme of the invention has the beneficial effects that:
the high-power permanent magnet brushless motor disclosed by the invention is structurally designed and optimized for the width of the magnetic steel of the motor rotor and the yoke part of the rotor, and has the advantages of high power, high efficiency and low cogging torque.
Drawings
FIG. 1 is a schematic structural diagram of a stator module of a high power permanent magnet brushless motor according to the present invention;
FIG. 2 is an exploded view of a stator module of the high power permanent magnet brushless motor according to the present invention;
FIG. 3 is a schematic structural diagram of a high power permanent magnet brushless motor rotor module according to the present invention;
FIG. 4 is an exploded view of a high power permanent magnet brushless motor rotor module according to the present invention;
FIG. 5 is a cogging torque analysis chart of the high-power permanent magnet brushless motor of the present invention;
FIG. 6 is a MAP graph of the efficiency of a high power PMSM according to the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1-stator module, 2-rotor module, 11-non-lead side skeleton, 12-stator core, 13-stator winding, 14-lead side skeleton, 15-tooth, 16-installation hole site, 17-insulation slot paper, 21-balance block, 22-rotor end plate, 23-rotor core, 24-electromagnetic block, 25-rivet, 26-hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.
As shown in fig. 1-4, the present invention provides a high power permanent magnet brushless motor, which comprises a stator module 1 and a rotor module 2, the stator module 1 is sleeved on the periphery of the rotor module 2, the stator module 1 comprises a non-lead side framework 11, a stator iron core 12, a stator winding 13, insulating slot paper 17 and a lead side framework 14, the non-lead-wire side bobbin 11 and the lead-wire side bobbin 14 are respectively installed at both ends of the stator core 12, a plurality of teeth 15 are uniformly distributed on the inner side of the stator core 12, the teeth 15 are of T-shaped structures, the inner sides of the teeth 15 are arc-shaped structures, the inner diameter of the stator core 12 is formed by the arc-shaped structures of the inner sides of all the teeth 15, a tooth slot is formed between two adjacent teeth 15, the insulation slot paper 17 is inserted into the stator windings 13 one by one, the insulation slot paper 17 is made of M238 material and used for insulation protection, and the stator windings 13 are inserted into the tooth slots one by one; rotor module 2 includes balancing piece 21, rotor end plate 22, rotor core 23 and electromagnetism piece 24, electromagnetism piece 24 inserts in rotor core 23, and all electromagnetism pieces constitute polygonal structure, rotor end plate 22 and balancing piece 21 are set up in proper order at rotor core 23 both ends, rotor end plate 22, balancing piece 21 and rotor core 23 pass through rivet 25 fixed connection.
In the embodiment, the structure optimization design is carried out on the air gap magnetic field of the motor, and the structure comprises a stator tooth yoke part structure and a rotor layout structure, wherein the inner diameter of a stator adopts a non-uniform unequal circular design, and a rotor adopts a non-uniform unequal air gap design; analyzing and analyzing the direct-axis and quadrature-axis synchronous reactance of the motor according to experimental comparison data, analyzing the electromagnetic torque and the reluctance torque of the motor, and performing structural design and optimization on the magnetic steel width of a rotor and a yoke part of the rotor of the motor in order to improve the anti-interference capability of the motor under fluctuating load, thereby improving the performance and the anti-interference capability of the motor; magnetic circuit analysis shows that the magnetic flux density of a tooth part is about 1.8T, and the magnetic flux density of a Here part is about 1T; the motor cogging torque analysis chart is shown in fig. 5, and the cogging torque is small; the motor efficiency MAP is shown in fig. 6.
Specifically, the non-lead side frame 11 and the lead side frame are both of a PBT/PBS resin material injection molding integrated structure, mounting hole sites 16 are arranged at two ends of the stator core 12, and the non-lead side frame 11 and the lead side frame 14 are respectively buckled on the mounting hole sites 16 of the stator core 12 through clamping points.
Specifically, the stator core 12 and the rotor core 23 are all buckled and stacked by a plurality of silicon steel sheets, so that eddy current and hysteresis loss caused by alternating magnetic potential are reduced.
Specifically, the electromagnetic block 24 is made of neodymium-iron-boron rare-earth magnetic steel.
Specifically, the corresponding positions of the rotor core 23, the rotor end plate 22 and the balance weight 21 are provided with openings 26 for weight reduction and ventilation cooling.
In conclusion, the high-power permanent magnet brushless motor has the advantages that the structural design and optimization are carried out on the width of the magnetic steel of the motor rotor and the yoke part of the rotor, and the performance and the anti-interference capability of the motor are improved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. A high-power permanent magnet brushless motor is characterized by comprising a stator module and a rotor module, wherein the stator module is sleeved on the periphery of the rotor module and comprises a non-lead side framework, a stator winding, insulating slot paper, a stator core and a lead side framework, the non-lead side framework and the lead side framework are respectively installed at two ends of the stator core, a plurality of teeth are uniformly distributed on the inner side of the stator core, the teeth are of a T-shaped structure, the inner sides of the teeth are of arc structures, the inner diameter of the stator core is formed by the inner arc structures of all the teeth, a tooth slot is formed between every two adjacent teeth, the insulating slot paper is inserted into the stator winding one by one for insulation protection, and the stator winding is inserted into the tooth slot one by one; the rotor module comprises a balance block, a rotor end plate, a rotor iron core and an electromagnetic block, wherein the electromagnetic block is inserted into the rotor iron core, the rotor end plate and the balance block are sequentially arranged at two ends of the rotor iron core, and the rotor end plate, the balance block and the rotor iron core are fixedly connected through rivets.
2. The high-power permanent magnet brushless motor according to claim 1, wherein the non-lead-wire side frame and the lead-wire side frame are both of a PBT/PBS resin material injection molding integrated structure, mounting hole sites are arranged at two ends of the stator core, and the non-lead-wire side frame and the lead-wire side frame are respectively buckled on the mounting hole sites of the stator core through clamping points.
3. The high power permanent magnet brushless motor of claim 1, wherein the stator core and the rotor core are each laminated by a plurality of silicon steel sheet fasteners.
4. The high power permanent magnet brushless motor according to claim 1, wherein the electromagnetic block is made of neodymium-iron-boron rare earth magnetic steel.
5. The high power permanent magnet brushless motor of claim 1, wherein the rotor core and the rotor end plate and the balance weight are provided with openings at corresponding positions for weight reduction and ventilation cooling.
6. The high power permanent magnet brushless motor of claim 1, wherein the insulation slot paper is M238 material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110077537.8A CN112671199A (en) | 2021-01-20 | 2021-01-20 | High-power permanent magnet brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110077537.8A CN112671199A (en) | 2021-01-20 | 2021-01-20 | High-power permanent magnet brushless motor |
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| Publication Number | Publication Date |
|---|---|
| CN112671199A true CN112671199A (en) | 2021-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110077537.8A Pending CN112671199A (en) | 2021-01-20 | 2021-01-20 | High-power permanent magnet brushless motor |
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| CN (1) | CN112671199A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114069904A (en) * | 2021-11-18 | 2022-02-18 | 苏州博特蒙电机有限公司 | A high-efficiency and low-noise brushless permanent magnet motor |
| CN114498988A (en) * | 2022-03-23 | 2022-05-13 | 苏州博特蒙电机有限公司 | A noise reduction high power permanent magnet brushless motor |
| CN114944738A (en) * | 2022-05-25 | 2022-08-26 | 江苏超力电器有限公司 | High-efficiency low-torque-fluctuation permanent magnet synchronous motor for high-pressure impact pump |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105515328A (en) * | 2015-07-01 | 2016-04-20 | 刘国建 | High power density brushless motor for power tool |
| CN205544856U (en) * | 2016-03-17 | 2016-08-31 | 长沙启科电子有限公司 | Be applied to seven cun annular saw DC Brushless motor |
| US20160254715A1 (en) * | 2015-02-27 | 2016-09-01 | Johnson Electric S.A. | Single-phase brushless motor |
| CN207896845U (en) * | 2017-12-27 | 2018-09-21 | 五羊—本田摩托（广州）有限公司 | A kind of motor of high power density |
| CN208353095U (en) * | 2018-10-24 | 2019-01-08 | 苏州瑞诺盟新能源电机有限公司 | A kind of vehicle-mounted compressor brushless direct current permanent magnet motor |
| CN208904793U (en) * | 2018-08-24 | 2019-05-24 | 广州福得电子科技有限公司 | A kind of stator module and motor |
| CN110768420A (en) * | 2018-07-27 | 2020-02-07 | 广东美芝制冷设备有限公司 | Permanent magnet motors, compressors and air conditioners |
| CN210693580U (en) * | 2019-11-01 | 2020-06-05 | 合肥新沪屏蔽泵有限公司 | Stator core punching sheet, stator assembly and electronic pump |
| CN112134387A (en) * | 2020-10-15 | 2020-12-25 | 苏州博特蒙电机有限公司 | Novel Phase-Insulated Stator Mechanism |
-
2021
- 2021-01-20 CN CN202110077537.8A patent/CN112671199A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160254715A1 (en) * | 2015-02-27 | 2016-09-01 | Johnson Electric S.A. | Single-phase brushless motor |
| CN105515328A (en) * | 2015-07-01 | 2016-04-20 | 刘国建 | High power density brushless motor for power tool |
| CN205544856U (en) * | 2016-03-17 | 2016-08-31 | 长沙启科电子有限公司 | Be applied to seven cun annular saw DC Brushless motor |
| CN207896845U (en) * | 2017-12-27 | 2018-09-21 | 五羊—本田摩托（广州）有限公司 | A kind of motor of high power density |
| CN110768420A (en) * | 2018-07-27 | 2020-02-07 | 广东美芝制冷设备有限公司 | Permanent magnet motors, compressors and air conditioners |
| CN208904793U (en) * | 2018-08-24 | 2019-05-24 | 广州福得电子科技有限公司 | A kind of stator module and motor |
| CN208353095U (en) * | 2018-10-24 | 2019-01-08 | 苏州瑞诺盟新能源电机有限公司 | A kind of vehicle-mounted compressor brushless direct current permanent magnet motor |
| CN210693580U (en) * | 2019-11-01 | 2020-06-05 | 合肥新沪屏蔽泵有限公司 | Stator core punching sheet, stator assembly and electronic pump |
| CN112134387A (en) * | 2020-10-15 | 2020-12-25 | 苏州博特蒙电机有限公司 | Novel Phase-Insulated Stator Mechanism |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114069904A (en) * | 2021-11-18 | 2022-02-18 | 苏州博特蒙电机有限公司 | A high-efficiency and low-noise brushless permanent magnet motor |
| CN114498988A (en) * | 2022-03-23 | 2022-05-13 | 苏州博特蒙电机有限公司 | A noise reduction high power permanent magnet brushless motor |
| CN114944738A (en) * | 2022-05-25 | 2022-08-26 | 江苏超力电器有限公司 | High-efficiency low-torque-fluctuation permanent magnet synchronous motor for high-pressure impact pump |
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Application publication date: 20210416 |
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