CN112564423A - Ultrahigh-speed high-power permanent magnet synchronous motor - Google Patents
Ultrahigh-speed high-power permanent magnet synchronous motor Download PDFInfo
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- CN112564423A CN112564423A CN202011585760.5A CN202011585760A CN112564423A CN 112564423 A CN112564423 A CN 112564423A CN 202011585760 A CN202011585760 A CN 202011585760A CN 112564423 A CN112564423 A CN 112564423A
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- motor
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- permanent magnet
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
- H02K9/193—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling medium; with means for preventing leakage of the cooling medium
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The invention discloses an ultra-high-speed high-power permanent magnet synchronous motor which comprises a motor shell and a water delivery device, wherein a base is arranged on the outer side wall of the motor shell, a plurality of stator cores are arranged on the inner wall of the motor shell, the plurality of stator cores are inclined at a large angle, the plurality of stator cores are mutually overlapped, a stator winding is arranged on each stator core, and a rotor is rotatably connected to the motor shell. The stator of the motor is made of the silicon steel sheet material with high magnetic conductivity, and the groove type of the stator of the motor is subjected to large-angle skew overlapping by combining a special tool, so that the cogging torque and the torque ripple of the motor are further reduced; the winding mode is optimized by adopting a special wire embedding method, so that the concentrated occurrence of high-frequency harmonic waves is effectively reduced; the rotor adopts the external design of the magnetic steel, the magnetic steel with high magnetic energy product is directly embedded into the rotating shaft, the electromagnetic design requirement is met, and meanwhile, the structural strength of the rotor is also ensured without increasing the diameter of the rotor.
Description
Technical Field
The invention relates to the technical field of high-power motors, in particular to an ultrahigh-speed high-power permanent magnet synchronous motor.
Background
The permanent magnet synchronous motor has the characteristics of small volume, light weight, high efficiency, high power density and the like, and compared with an induction type alternating current motor, the working voltage of the permanent magnet synchronous motor can be relatively low. Based on these characteristics, permanent magnet synchronous motors are finding wider and wider applications. In recent years, people are exploring to use permanent magnet synchronous motors on some large-scale engineering machinery so as to improve the performance of the engineering machinery and meet special engineering requirements.
The high-speed permanent magnet motor on the existing market can only reach 60000rpm ~75000rpm at most, and the power range also only has 7KW ~10KW, and this current motor design has that power can't be bigger, and the rotational speed can't be higher, has restricted many hypervelocity trade demands, and the design difficulty of the high-power permanent magnet synchronous motor of hypervelocity divide into:
1. the ultra-high-speed high-power permanent magnet synchronous motor belongs to a high-speed high-frequency motor, the operating frequency basically reaches 2000-2500 Hz, the electromagnetic design is very important in the high-frequency environment, if the design is unreasonable, the high-frequency harmonic and high-frequency eddy current loss of the motor are very large, the motor can be seriously heated, the high-frequency vibration cannot be avoided, the service life of the motor is seriously insufficient, the motor can not be insisted for several minutes, a coil of the motor is burnt due to overhigh temperature, and the permanent magnet of the motor can also be subjected to irreversible demagnetization due to high temperature or high-frequency vibration.
2. Due to the fact that the rotating speed of the ultra-high-speed motor is ultra-high, the surface linear velocity of a rotor can reach 160-170 m/S, the design of a shaft system of the rotor and the structural strength of the rotor are strictly examined, and in the ultra-high-speed environment, if flaws or defects exist on the shaft system or the structure, the whole motor is scrapped instantly basically.
To solve the above problems, we propose an ultra-high-speed high-power permanent magnet synchronous motor.
Disclosure of Invention
The invention aims to solve the problems that the motor is low in rotating speed and high in coil temperature and is easy to burn out in the prior art, and provides an ultra-high-speed and high-power permanent magnet synchronous motor.
In order to achieve the purpose, the invention adopts the following technical scheme:
an ultra-high-speed high-power permanent magnet synchronous motor comprises a motor shell and a water delivery device, wherein a base is arranged on the outer side wall of the motor shell, a plurality of stator cores are arranged on the inner wall of the motor shell, the stator cores are inclined at a large angle and are stacked mutually, a stator winding is arranged on each stator core, a rotor is rotatably connected with the motor shell, a front end cover is fixedly connected with the inner wall of the motor shell and is rotatably connected with the rotor, an output head is arranged at one end, extending out of the motor shell, of the rotor, a plurality of magnetic steels matched with the stator windings are embedded in the side wall, extending into the motor shell, of the rotor, an opening is formed in one end, far away from the output head, of the motor shell, a fixed block matched with the opening is fixedly connected with the side wall, close to the opening, of the, the output head is kept away from to the rotor one end is rotated with the fixed block and is connected, the fixed block is close to the lateral wall fixedly connected with fixed plate of rotor, the rotor is close to the first gear of lateral wall fixedly connected with of fixed block, the lateral wall that the fixed plate is close to first gear rotates and is connected with a plurality of planetary gear who matches with first gear, and is a plurality of planetary gear rotates and is connected with the ring gear, ring gear fixedly connected with rotary drum, the rotary drum is close to the lateral wall of fixed block through a plurality of branch fixedly connected with flabellums.
Preferably, an inlet chamber and an outlet chamber are formed in the rotary drum, and the inlet chamber and the outlet chamber are communicated through a plurality of vertical pipes.
Preferably, one end of the rotary drum close to the fixed block is hermetically connected with a water inlet pipe and a water outlet pipe, the water inlet pipe is hermetically connected with the water inlet chamber, and the water outlet pipe is hermetically connected with the water outlet chamber.
Preferably, the water inlet pipe and the water outlet pipe extend out of the motor shell from the opening, the side wall of the water delivery device close to the motor shell is connected with a rotating ring in a rotating and sealing mode, and the water inlet pipe and the water outlet pipe are connected with the rotating ring in a sealing mode.
Preferably, the water delivery device is provided with a water supply chamber and a water suction chamber, and the water pressure of the water supply chamber is greater than that of the water suction chamber.
Preferably, the inner side wall of the water delivery device close to the motor shell is connected with a rotary table in a rotating and sealing mode, and the water inlet pipe and the water outlet pipe penetrate through the rotary table.
Preferably, one end of the water inlet pipe and one end of the water outlet pipe extending into the water delivery device are provided with one-way valves, and the water inlet pipe and the water outlet pipe are rotatably connected with the motor shell.
Compared with the prior art, the invention has the beneficial effects that:
1. the motor stator is made of high-permeability silicon steel sheet materials, and a stator winding is subjected to large-angle skew stacking by combining a special tool with a motor stator slot, so that the cogging torque and the torque ripple of the motor are further reduced; the winding mode is optimized by adopting a special wire embedding method, so that the concentrated occurrence of high-frequency harmonic waves is effectively reduced, the heat productivity of the motor is reduced, and the service life of the motor is prolonged;
2. the rotor adopts the external magnetic steel design, and the high magnetic energy product magnetic steel is directly embedded into the rotating shaft, so that the electromagnetic design requirement is met, meanwhile, the structural strength of the rotor is ensured without increasing the diameter of the rotor, the motor runs stably at ultrahigh speed, and the motor efficiency is high;
3. can cool down the coil in the motor through water delivery device and rotary drum isotructure, prevent that motor high temperature from leading to the magnet steel to produce irreversible demagnetization, guarantee super high speed motor's efficiency, avoid the motor to be burnt out, further prolong the life of motor, the flabellum then can accelerate the air current circulation in the motor casing, guarantees the radiating effect of motor.
Drawings
FIG. 1 is a schematic structural diagram of an ultra-high speed and high power permanent magnet synchronous motor according to the present invention;
FIG. 2 is a schematic view of the structure at A in FIG. 1;
FIG. 3 is a schematic cross-sectional structure diagram of an ultra-high speed and high power permanent magnet synchronous motor according to the present invention;
fig. 4 is a schematic structural diagram of a stator winding of an ultra-high-speed high-power permanent magnet synchronous motor according to the present invention.
In the figure: the motor comprises a motor shell 1, a stator core 2, a rotor 3, a stator winding 4, magnetic steel 5, a front end cover 6, an output head 7, a base 8, a water delivery device 9, a fixing block 10, a fixing plate 11, a planetary gear 12, a first gear 13, a toothed ring 14, a rotating drum 15, a water inlet pipe 16, a water outlet pipe 17, a water supply chamber 18, a water suction chamber 19, a vertical pipe 20, fan blades 21, a radiator mesh 22, a rotating ring 23 and a rotating disc 24.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-4, an ultra-high speed and high power permanent magnet synchronous motor comprises a motor housing 1 and a water delivery device 9, wherein a base 8 is arranged on the outer side wall of the motor housing 1, a plurality of stator cores 2 are arranged on the inner wall of the motor housing 1, the plurality of stator cores 2 are inclined at a large angle, the plurality of stator cores 2 are mutually overlapped, a stator winding 4 is arranged on each stator core 2, the motor housing 1 is rotatably connected with a rotor 3, a front end cover 6 is fixedly connected with the inner wall of the motor housing 1, the front end cover 6 is rotatably connected with the rotor 3, an output head 7 is arranged at one end of the rotor 3, which extends out of the motor housing 1, a plurality of magnetic steels 5 matched with the stator winding 4 are embedded in the side wall of the rotor 3, the motor stator adopts a high-permeability silicon steel sheet material, the stator slot type of the motor is combined with a special tool to perform large-; the winding mode is optimized by adopting a special wire embedding method, the concentration of high-frequency harmonic waves is effectively reduced, the heat productivity of the motor is reduced, the service life of the motor is prolonged, the external design of the magnetic steel 5 is adopted on the aspect of the rotor 3, the magnetic steel 5 with high magnetic energy product is directly embedded into the rotating shaft, the electromagnetic design requirement is met, meanwhile, the diameter of the rotor 3 is not increased, the structural strength of the rotor 3 is also ensured, the motor runs stably at ultrahigh speed, and the motor efficiency is high;
an opening is formed in one end, far away from an output head 7, of a motor shell 1, a fixed block 10 matched with the opening is fixedly connected to the side wall, close to the opening, of a water delivery device 9, a heat dissipation net 22 is fixedly connected to the side wall of the fixed block 10, one end, far away from the output head 7, of a rotor 3 is rotatably connected to the fixed block 10, a fixed plate 11 is fixedly connected to the side wall, close to the rotor 3, of the fixed block 10, a first gear 13 is fixedly connected to the side wall, close to the first gear 13, of the fixed plate 11, a plurality of planetary gears 12 matched with the first gear 13 are rotatably connected to the side wall, close to the rotor 3, of the fixed block 11, a toothed ring 14 is rotatably connected to the plurality of planetary gears 12, the toothed ring 14 is fixedly connected to a rotary drum 15, fan blades 21 are fixedly connected to the side wall, close to the, the water inlet chamber and the water outlet chamber are communicated through a plurality of vertical pipes 20, one end of the rotary drum 15 close to the fixed block 10 is hermetically connected with a water inlet pipe 16 and a water outlet pipe 17, the water inlet pipe 16 is hermetically connected with the water inlet chamber, the water outlet pipe 17 is hermetically connected with the water outlet chamber, the water inlet pipe 16 and the water outlet pipe 17 extend out of the motor housing 1 from an opening, the side wall of the water delivery device 9 close to the motor housing 1 is rotationally and hermetically connected with a rotary ring 23, the water inlet pipe 16 and the water outlet pipe 17 are hermetically connected with the rotary ring 23, the water delivery device 9 is provided with a water supply chamber 18 and a water suction chamber 19, the water pressure of the water supply chamber 18 is greater than that of the water suction chamber 19, the inner side wall of the water delivery device 9 close to the motor housing 1 is rotationally and hermetically connected with a rotary table 24, the water inlet pipe 16 and the water outlet pipe 17 penetrate through the rotary table 24, one end of the, the magnet steel 5 is prevented from generating irreversible demagnetization caused by overhigh temperature of the motor, the efficiency of the ultra-high speed motor is ensured, the motor is prevented from being burnt out, and the service life of the motor is further prolonged.
When the invention is used, the water delivery device 9 is started, the stator winding 4 is electrified, the stator winding 4 generates a rotating magnetic field, so that the rotor 3 is driven to rotate by the plurality of magnetic steels 5, the tooth space torque and the torque pulsation of the motor can be reduced by the large-angle inclination of the plurality of stator windings 4, the winding mode is optimized by adopting a special wire embedding method, the concentration of high-frequency harmonic waves is effectively reduced, the large heating of the motor is prevented, the service life of the high-speed rotation of the motor is prolonged, the operation of the motor is more stable, the electromagnetic design requirement is met by embedding the plurality of magnetic steels 5 into the stator, the structural strength of the rotor 3 is ensured without increasing the diameter of the rotor 3, the super-high-speed rotation of the rotor 3 is ensured, the first gear 13 is driven to rotate by the rotor 3, the first gear 13 drives the plurality of planet gears 12 to rotate, the plurality of planet gears 12 drive the toothed ring 14 to rotate, the gear ring 14 drives the rotary drum 15 to rotate, the rotary drum 15 drives the fan blades 21 to rotate through a plurality of support rods, air flow in the motor shell 1 can be promoted through the fan blades 21, the heat dissipation effect of the motor shell 1 is accelerated, meanwhile, the rotary drum 15 drives the water inlet pipe 16 and the water outlet pipe 17 to rotate when rotating, the water inlet pipe 16 and the water outlet pipe 17 drive the rotary disc 24 to rotate through the rotary ring 23, when the water inlet pipe 16 is communicated with the water supply chamber 18, water in the water supply chamber 18 enters the water inlet chamber through the one-way valve and the water inlet pipe 16, water in the water inlet chamber enters the water outlet chamber through a plurality of vertical pipes 20, so that heat dissipation is carried out on coils of the stator winding 4, when the water outlet pipe 17 is communicated with the water suction chamber 19, water in the water outlet pipe 17 enters the water suction chamber 19 through the one-way valve, circulation is formed, cooling water is, avoid the motor to be heated and damaged, prolong the life of motor.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The utility model provides a superspeed high-power permanent magnet synchronous motor, includes motor housing (1) and water delivery device (9), its characterized in that, the lateral wall of motor housing (1) is equipped with base (8), motor housing (1) inner wall is equipped with a plurality of stator core (2), and is a plurality of stator core (2) wide-angle slope is a plurality of stator core (2) superposes each other, every be equipped with stator winding (4) on stator core (2), motor housing (1) rotates and is connected with rotor (3), motor housing (1) inner wall fixedly connected with front end housing (6), front end housing (6) and rotor (3) rotate and are connected, the one end that rotor (3) stretched out motor housing (1) is equipped with output (7), a plurality of magnet steel (5) that match with stator winding (4) are embedded to lateral wall that rotor (3) stretched into motor housing (1), the motor is characterized in that an opening is formed in one end, far away from the output head (7), of the motor shell (1), a fixing block (10) matched with the opening is fixedly connected to the side wall, close to the opening, of the water delivery device (9), a heat dissipation net (22) is fixedly connected to the side wall of the fixing block (10), one end, far away from the output head (7), of the rotor (3) is rotatably connected with the fixing block (10), a fixing plate (11) is fixedly connected to the side wall, close to the rotor (3), of the fixing block (10), a first gear (13) is fixedly connected to the side wall, close to the fixing block (10), of the rotor (3), a plurality of planetary gears (12) matched with the first gear (13) are rotatably connected to the side wall, close to the first gear (13), of the plurality of planetary gears (12) are rotatably connected with a toothed ring (14), and the toothed, the side wall of the rotary drum (15) close to the fixed block (10) is fixedly connected with fan blades (21) through a plurality of support rods.
2. The ultra-high speed and high power PMSM according to claim 1, wherein said rotor (15) has an inlet chamber and an outlet chamber formed therein, said inlet and outlet chambers being in communication via a plurality of standpipes (20).
3. The ultra-high speed and high power permanent magnet synchronous motor according to claim 2, wherein one end of the rotating drum (15) close to the fixed block (10) is hermetically connected with a water inlet pipe (16) and a water outlet pipe (17), the water inlet pipe (16) is hermetically connected with a water inlet chamber, and the water outlet pipe (17) is hermetically connected with a water outlet chamber.
4. The ultra-high speed and high power permanent magnet synchronous motor according to claim 3, wherein the water inlet pipe (16) and the water outlet pipe (17) extend out of the motor housing (1) from the opening, the water delivery device (9) is rotatably and hermetically connected with a rotating ring (23) close to the side wall of the motor housing (1), and the water inlet pipe (16) and the water outlet pipe (17) are hermetically connected with the rotating ring (23).
5. The super high speed high power permanent magnet synchronous motor according to claim 4, wherein the water delivery device (9) is provided with a water supply chamber (18) and a water suction chamber (19), and the water pressure of the water supply chamber (18) is greater than the water pressure of the water suction chamber (19).
6. The ultra-high speed and high power permanent magnet synchronous motor according to claim 1, wherein the water delivery device (9) is rotatably and hermetically connected with a rotating disc (24) close to the inner side wall of the motor housing (1), and the water inlet pipe (16) and the water outlet pipe (17) penetrate through the rotating disc (24).
7. The ultra-high speed and high power permanent magnet synchronous motor according to claim 1, wherein one end of the water inlet pipe (16) and the water outlet pipe (17) extending into the water delivery device (9) is provided with a one-way valve, and the water inlet pipe (16) and the water outlet pipe (17) are rotatably connected with the motor housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011585760.5A CN112564423B (en) | 2020-12-29 | 2020-12-29 | Ultrahigh-speed high-power permanent magnet synchronous motor |
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| CN202011585760.5A CN112564423B (en) | 2020-12-29 | 2020-12-29 | Ultrahigh-speed high-power permanent magnet synchronous motor |
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| CN112564423A true CN112564423A (en) | 2021-03-26 |
| CN112564423B CN112564423B (en) | 2022-12-23 |
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| KR101057972B1 (en) * | 2010-07-06 | 2011-08-19 | 장인성 | Motor cooling apparatus |
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| CN207166304U (en) * | 2017-08-15 | 2018-03-30 | 天津创远亿德科技发展有限公司 | A kind of permagnetic synchronous motor |
| CN108233630A (en) * | 2018-03-23 | 2018-06-29 | 苏州越崴动力***有限公司 | A kind of excellent New energy automobile motor of heat dissipation effect |
| CN109274220A (en) * | 2018-11-21 | 2019-01-25 | 高邮佳春科技有限公司 | A kind of high efficiency and heat radiation motor |
| CN208890571U (en) * | 2018-08-21 | 2019-05-21 | 安徽皖新电机有限公司 | A kind of reluctance motor of rotor air-flowing type heat dissipation |
| CN209104969U (en) * | 2018-12-11 | 2019-07-12 | 深圳市鑫日隆科技有限公司 | A kind of permanent magnet synchronous servo motor |
| CN210927351U (en) * | 2019-10-10 | 2020-07-03 | 安徽省大创机电有限公司 | Large-scale driving motor with high-efficiency heat dissipation |
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2020
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101057972B1 (en) * | 2010-07-06 | 2011-08-19 | 장인성 | Motor cooling apparatus |
| CN203632510U (en) * | 2013-10-30 | 2014-06-04 | 台州百格拉机电有限公司 | Motor |
| CN207166304U (en) * | 2017-08-15 | 2018-03-30 | 天津创远亿德科技发展有限公司 | A kind of permagnetic synchronous motor |
| CN107508423A (en) * | 2017-10-20 | 2017-12-22 | 南京泓凯动力***科技有限公司 | A kind of high-efficient heat-dissipating permagnetic synchronous motor |
| CN108233630A (en) * | 2018-03-23 | 2018-06-29 | 苏州越崴动力***有限公司 | A kind of excellent New energy automobile motor of heat dissipation effect |
| CN208890571U (en) * | 2018-08-21 | 2019-05-21 | 安徽皖新电机有限公司 | A kind of reluctance motor of rotor air-flowing type heat dissipation |
| CN109274220A (en) * | 2018-11-21 | 2019-01-25 | 高邮佳春科技有限公司 | A kind of high efficiency and heat radiation motor |
| CN209104969U (en) * | 2018-12-11 | 2019-07-12 | 深圳市鑫日隆科技有限公司 | A kind of permanent magnet synchronous servo motor |
| CN210927351U (en) * | 2019-10-10 | 2020-07-03 | 安徽省大创机电有限公司 | Large-scale driving motor with high-efficiency heat dissipation |
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