CN103095084A - Oil-immersion type high specific power permanent magnet brushless direct current motor - Google Patents
Oil-immersion type high specific power permanent magnet brushless direct current motor Download PDFInfo
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- CN103095084A CN103095084A CN201110332631XA CN201110332631A CN103095084A CN 103095084 A CN103095084 A CN 103095084A CN 201110332631X A CN201110332631X A CN 201110332631XA CN 201110332631 A CN201110332631 A CN 201110332631A CN 103095084 A CN103095084 A CN 103095084A
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Abstract
The invention relates to a permanent brushless direct current motor, in particular to an oil immersion type high specific power permanent magnet brushless direct current motor. The oil immersion type high specific power permanent magnet brushless direct current motor comprises a rotor, a stator sleeved on the rotor, a shell body arranged outside the stator and an end cap. A cylinder body provided with a radial protruding portion is arranged in the external circle of the external part of the rotor along the radial direction, a plurality of radial grooves are reversed in the radial protruding portion along the circumferential direction, the stator is in interference fit with the shell body and is fixed with the shell body, and a clearance is reversed between the stator and the rotor, and the rotor and the stator are matched in a sleeved mode. One end of the shell body is a full opening end, the other end of the shell body is a cylindrical structure provided with a through hole end, a protruding platform is arranged on the lower side of the shell body along the radial direction of the shell body, a channel communicated with the inner surface of the shell body is arranged at the position, near the full opening end of the shell body, of the protruding platform, and the channel extends from the inner surface of the shell body to the middle of the sectional face of the protruding platform. An oil path channel is arranged inside the protruding platform from the middle of the sectional face of the protruding platform to the direction far away from the full opening end of the shell body, and the oil path extends outside the shell body. The oil immersion type high specific power permanent magnet brushless direct current motor is simple in structure, reliable in operation, and high in specific power.
Description
Technical field
The present invention relates to a kind of permanent-magnet brushless DC electric machine, be specifically related to a kind of oil-immersed type high-specific-power permanent-magnet brushless DC electric machine.
Background technology
Permanent-magnet brushless DC electric machine is a kind of electromechanical energy conversion device that adopts permanent magnet excitation, electronic commutation to substitute mechanical commutation.Therefore, permanent-magnet brushless DC electric machine not only has the good control characteristic of general DC motor, also have simple in structure, the series of advantages such as volume is little, lightweight, non-commutation spark, reliability are high, long working life, adaptation hypobaric ability are strong, be widely used in industrial circle.
In conventional electric hydraulic servo-machine construction system, adopt high-speed electric expreess locomotive to drive hydraulic pump hydraulic energy source is provided.This kind structural requirement oil pump must be rotated the movable sealing design, and motor internal can not enter hydraulic oil, therefore do not need to carry out Seal Design.Run up and abominable operational environment under, the rotary dynamic seal of oil pump is had relatively high expectations, and unfavorable to longer-term storage.In some industrial occasions, very strict to weight, the volume requirement of motor, and cancel the oil pump movable sealing, motor internal enters hydraulic oil.Traditional shield electric machine adopts shield cover structure to allow motor internal to enter fluid or other liquid, this kind structure has increased motor gas-gap, can't realize small size, the high-specific-power requirement, the general running occasion that only is only applicable to be no more than 3000r/min can't satisfy the requirement that runs up.As seen, traditional product and shield electric machine technology all can't satisfy the motor requirement of some field oil-immersed types, high-specific-power, small size, therefore, need to adopt new technology to solve.
Summary of the invention
The technical problem that will solve of the present invention is to provide a kind of oil-immersed type high-specific-power permanent-magnet brushless DC electric machine, and this electric machine structure is simple, and volume is little, lightweight, specific power is high, adapts to the requirement that hydraulic oil enters motor internal.
In order to solve the problems of the technologies described above, technical scheme of the present invention is,
A kind of oil-immersed type high-specific-power permanent-magnet brushless DC electric machine comprises rotor, is sleeved on epitrochanterian stator, is packaged in the outer housing of stator, and end cap is characterized in that:
Described stator outer wall is provided with several axial notches, and stator is fixed in housing, and described stator and rotor leave the gap suit and coordinate;
Described housing is provided with asphalt channel, and this asphalt channel extends near the housing other end from housing one end always, is connected with inner walls near this asphalt channel of housing other end place described.
Described housing one end is the open end, and the other end is the tubular structure that has the open-work end.
Described rotor comprises rotating shaft, and this rotating shaft runs through whole housing, and an end of this rotating shaft passes housing open end and joins by clutch shaft bearing and extend outside described end cap with the end cap that is fixed on this housing open end; The other end of this rotating shaft and housing have the open-work end and join by the second bearing and stretch out outside this housing, and this rotating shaft and described housing have between the open-work end and leave the gap.
Described rotor also comprises yoke, permanent magnet, protective sleeve, end plate; Described yoke and shaft set are fixed, and the axial length permanent magnet consistent with yoke suit is fixed on yoke, is set with protective sleeve at the permanent magnet outer surface, and protective sleeve is fixed with the end plate that is fixed on yoke two ends.
Described stator comprises stator core and stator winding, and described stator core is that the cross section is the tubular structure of annular, and this stator core is along circumferentially evenly offering axially several penetrating grooves, and described stator winding is embedded in each groove.
Described stator core adopts high-saturation magnetic induction soft magnetic material 1J22.
Described protective sleeve adopts nonmagnetic stainless steel to make, and its thickness basis is more than or equal to 0.2mm.
Described housing outer wall one sidepiece is equipped with power supply base, and this power supply base is connected with stator winding by wire; Described rotating shaft is extended the outer part suit of described end cap and is connected with the described end cap outer rim of rotor-position sensor and is fixed with rear end cap, in this rear end cap is wrapped in rotor-position sensor and rotating shaft, the rear end cap top is equipped with signal plug, and this signal plug is connected with rotor-position sensor by wire.
Described power supply base and signal plug adopt glass sintering closed type socket.
Beneficial effect of the present invention:
(1) simple in structure, reliable, specific power is high.
(2) adapt to the requirement that hydraulic oil enters motor internal, cancelling motor load is the rotary dynamic seal of hydraulic pump, increases substantially the reliability of electric-motor pump and adapts to long-term storage capability.
(3) stator adopts high temperature resistant encapsulation technology, does not need additionally to increase motor gas-gap, easily realizes higher specific power, reduces volume and weight.
(4) when High Rotation Speed, can effectively reduce the frictional dissipation of hydraulic oil.
(5) stator outer surface design oil circuit is conducive to flowing of hydraulic oil, and can carry out motor coolingly, has improved the motor temperature resistant capability.
(6) adopt glass sintering closed type socket, can effectively prevent the leakage of motor internal hydraulic oil from the cable.
Description of drawings
Fig. 1 is a kind of oil-immersed type high-specific-power of the present invention permanent-magnet brushless DC electric machine profile;
Fig. 2 is the middle A-A profile of a kind of oil-immersed type high-specific-power of the present invention permanent-magnet brushless DC electric machine profile;
Fig. 3 is the stator profile of a kind of oil-immersed type high-specific-power of the present invention permanent-magnet brushless DC electric machine;
Fig. 4 is B-B profile in the stator profile of a kind of oil-immersed type high-specific-power of the present invention permanent-magnet brushless DC electric machine;
Fig. 5 is graphics after the stator embedding of a kind of oil-immersed type high-specific-power of the present invention permanent-magnet brushless DC electric machine;
Fig. 6 is the rotor profiles figure of a kind of oil-immersed type high-specific-power of the present invention permanent-magnet brushless DC electric machine;
Fig. 7 is the C-C profile of the rotor profiles figure of a kind of oil-immersed type high-specific-power of the present invention permanent-magnet brushless DC electric machine.
In figure: the 1-stator; The 2-rotor; The 3-housing; The 4-end cap; The 5-rear end cap; The 6-power supply base; The 7-signal plug; The 8-rotor-position sensor; 9-the first sealing ring; The 10-screw plug; The 11-asphalt channel; The 12-oil groove; The 13-return port; 14-the second sealing ring; The 15-location-plate; The 1-1-stator core; The 1-2-stator winding; The 2-1-rotating shaft; The 2-2-yoke; The 2-3-permanent magnet; The 2-4-protective sleeve; The 2-5-end plate; The 2-6-clutch shaft bearing, 2-7 the second bearing.
Embodiment
Below in conjunction with accompanying drawing 1 to accompanying drawing 7 and embodiment, the present invention is described further.
A kind of oil-immersed type high-specific-power of the present invention brshless DC motor comprises rotor 2, be sleeved on epitrochanterian stator 1, be packaged in the outer housing 3 of stator 1, end cap 4, described stator 1 is outside for be provided with vertically the cylinder of radial lugs in the middle of this stator cylindrical 1, upwards leaves several axial notches this radial lugs week, formed oil groove 12, stator 1 and housing 3 interference fit, and be fixed with trip bolt, described stator 1 and rotor 2 leave the gap suit and coordinate.
Described housing 3 one ends are the open end, the other end is the tubular structure that has the open-work end, and these housing 3 lower wall are provided with along the axial boss of housing 3, this boss has open-work one end place at housing 3 and is provided with asphalt channel 11, this asphalt channel 11 is extended down near housing 3 open ends always, near housing 3 open end places, described asphalt channel 11 is connected with housing 3 inner surfaces at this; By screw plug 10, the outlet away from housing 3 open ends of this asphalt channel 11 is blocked, and be provided with the return port 13 that is communicated with this asphalt channel 11 on the base of housing 3 one, this return port 13 finally is connected with external fuel tank; Described asphalt channel 11 and oil groove 12 forms oil circuits, is beneficial to flowing and to the heat radiation of stator, and can additionally not increasing gas length of hydraulic oil.
Described rotor 2 comprises rotating shaft 2-1, this rotating shaft 2-1 runs through whole housing 3, the end of this rotating shaft 2-1 passes housing 3 open ends and is connected to and the end cap 4 that is screwed at this housing 3 open ends by the clutch shaft bearing 2-6 of bearing sleeve in this end cap inside, and extend outside described end cap 4, be provided with the second sealing ring 14 between described end cap 4 and body, prevent that hydraulic oil from leaking to the outside from motor internal; The other end of this rotating shaft 2-1 and housing 3 have the circular through-hole end and join and stretch out outside this housing 3 at housing 3 the second inner bearing 2-7 of this end by bearing sleeve.Described rotor 2 also comprises yoke 2-2, permanent magnet 2-3, protective sleeve 2-4, end plate 2-5; Described yoke 2-2 is fixing by rolling or flat key and rotating shaft 2-1 suit, yoke 2-2 week upwards evenly is provided with four axial draw-in grooves, four location-plates 15 that axial length is consistent with yoke 2-2 are installed on this axial draw-in groove, be provided with four permanent magnet 2-3 that axial length is consistent with yoke 2-2 between each location-plate 15, should be fixed on yoke 2-2 by high-temperature plastic by permanent magnet 2-3, be set with protective sleeve 2-4 at permanent magnet 2-3 outer surface, permanent magnet 2-3 is subjected to centrifugal action and damages when preventing High Rotation Speed; Protective sleeve 2-4 and the end plate 2-5 that is fixed on yoke two ends adopt the mode of laser welding to be fixed.In order to reduce the viscous friction moment of hydraulic oil, the mode at the outer surface of rotor 2 by machining guarantees higher roughness.Protective sleeve 2-4 adopts nonmagnetic stainless steel to make, and its thickness determines according to size, the rotating speed of rotor 2, and its size can be 0.2mm, 0.3mm, 0.4mm, 0.5mm, here preferred 0.3mm.
Described stator 1 comprises stator core 1-1 and stator winding 1-2, described stator core 1-1 is that the cross section is the tubular structure of annular, this stator core 1-1 is along circumferentially offering axially several penetrating grooves, described stator winding 1-2 is embedded in each groove, adopt high-temperature plastic to carry out overall vacuum embedding processing to stator winding and nail iron core, need not dipping lacquer, stator 1 inner circle is the smooth face of cylinder, to reduce the frictional dissipation of fluid; For reduced volume, described stator core 1-1 adopts high-saturation magnetic induction soft magnetic material 1J22.
The outer circular top part of described housing 3 one sides has cylindrical flange, is fixed with power supply base 6 by screw on this cylindrical flange, and this power supply base 6 is connected with stator winding 1-2 by wire; Described rotating shaft 2-1 extends the outer part suit of described end cap 4 and is connected with rotor-position sensor 8, and by large screw, that this branch's axle head and the rotor-position sensor 8 of described rotating shaft 2-1 is fixing; Described end cap 4 outer rims are fixed with rear end cap 5 by screw, and are provided with the first sealing ring 9 between end cap 4 and rear end cap 5, prevent that hydraulic oil from leaking to the outside from motor internal; In this rear end cap 5 was wrapped in rotor-position sensor 8 and rotating shaft 2-1, rear end cap 5 tops also were provided with cylindrical flange, are fixed with signal plug 7 by screw on this cylindrical flange, and this signal plug 7 is connected with rotor-position sensor 8 by wire; Described power supply base 6 and signal plug 7 adopt glass sintering closed type socket.
During work, peripheral driver is according to the measuring-signal of rotor-position sensor 8, give stator winding 2-2 power supply through power supply base 6 according to certain rules, operation principle according to permanent-magnet brushless DC electric machine, under the interaction of stator 1 and rotor 2, make rotor 2 rotations, and by rotating shaft 2-1 output mechanical energy.Hydraulic oil flows into motor internal by rotating shaft 2-1 shaft extension end under pressure, and the oil circuit that forms of the gap between stator 1 and rotor 2 and asphalt channel 11 and oil groove 12 is from an effluent of motor internal to an other side, flow to external fuel tank from housing 3 return ports 13 at last, running of hydraulic power oil signal sees in Fig. 1 that shown in arrow, hydraulic oil is lubricated bearing and carries out cooling with motor.
Above given a kind of oil-immersed type high-specific-power permanent-magnet brushless DC electric machine scheme, the user can according to the demand in concrete mounting interface and space, can according to practical service environment, carry out concrete design to each several part size, parameter.
Claims (9)
1. an oil-immersed type high-specific-power permanent-magnet brushless DC electric machine, comprise rotor (2), is sleeved on epitrochanterian stator (1), is packaged in the outer housing (3) of stator (1), and end cap (4) is characterized in that:
Described stator (1) outer wall is provided with several axial notches, and stator (1) is fixed in housing (3), and described stator (1) and rotor (2) leave the gap suit and coordinate;
Described housing (3) is provided with asphalt channel (11), this asphalt channel (11) extends near housing (3) other end from housing (3) one ends always, is connected with housing (3) inwall near housing (3) this asphalt channel of other end place (11) described.
2. according to a kind of oil-immersed type high-specific-power permanent-magnet brushless DC electric machine claimed in claim 1, it is characterized in that: described housing (3) one ends are the open end, and the other end is the tubular structure that has the open-work end.
3. according to a kind of oil-immersed type high-specific-power permanent-magnet brushless DC electric machine claimed in claim 2, it is characterized in that: described rotor (2) comprises rotating shaft (2-1), this rotating shaft (2-1) runs through whole housing (3), and an end of this rotating shaft (2-1) passes housing (3) open end and joins by clutch shaft bearing (2-6) and extend outside described end cap (4) with the end cap (4) that is fixed on this housing (3) open end; The other end of this rotating shaft (2-1) and housing (3) have the open-work end and join by the second bearing (2-7) and stretch out outside this housing (3), and this rotating shaft (2-1) and described housing (3) have between the open-work end and leave the gap.
4. according to a kind of oil-immersed type high-specific-power permanent-magnet brushless DC electric machine claimed in claim 3, it is characterized in that: described rotor (2) also comprises yoke (2-2), permanent magnet (2-3), protective sleeve (2-4), end plate (2-5); Described yoke (2-2) is fixing with rotating shaft (2-1) suit; axial length permanent magnet (2-3) suit consistent with yoke (2-2) is fixed on yoke (2-2); be set with protective sleeve (2-4) at permanent magnet (2-3) outer surface, protective sleeve (2-4) is fixing with the end plate (2-5) that is fixed on the yoke two ends.
5. according to a kind of oil-immersed type high-specific-power permanent-magnet brushless DC electric machine claimed in claim 1, it is characterized in that: described stator (1) comprises stator core (1-1) and stator winding (1-2), described stator core (1-1) is the tubular structure of annular for the cross section, this stator core (1-1) is along circumferentially evenly offering axially several penetrating grooves, and described stator winding (1-2) is embedded in each groove.
6. according to a kind of oil-immersed type high-specific-power permanent-magnet brushless DC electric machine claimed in claim 5, it is characterized in that: described stator core (1-1) adopts high-saturation magnetic induction soft magnetic material 1J22.
7. according to a kind of oil-immersed type high-specific-power permanent-magnet brushless DC electric machine claimed in claim 4, it is characterized in that: described protective sleeve (2-4) adopts nonmagnetic stainless steel to make, and its thickness basis is more than or equal to 0.2mm.
8. according to the described a kind of oil-immersed type high-specific-power permanent-magnet brushless DC electric machine of claim 2 to 7 any one, it is characterized in that: described housing (3) outer wall one side roof part is equipped with power supply base (6), and this power supply base (6) is connected with stator winding (1-2) by wire; Described rotating shaft (2-1) is extended the outer part suit of described end cap (4) and is connected with rotor-position sensor (8); Described end cap (4) outer rim is fixed with rear end cap (5), in this rear end cap (5) is wrapped in rotor-position sensor (8) and rotating shaft (2-1), rear end cap (5) top is equipped with signal plug (7), and this signal plug (7) is connected with rotor-position sensor (8) by wire.
9. according to a kind of oil-immersed type high-specific-power permanent-magnet brushless DC electric machine claimed in claim 8, it is characterized in that: described power supply base (6) and signal plug (7) adopt glass sintering closed type socket.
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| CN201110332631.XA CN103095084B (en) | 2011-10-27 | 2011-10-27 | A kind of oil-immersed type high-specific-power permanent-magnet brushless DC electric machine |
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| CN201110332631.XA CN103095084B (en) | 2011-10-27 | 2011-10-27 | A kind of oil-immersed type high-specific-power permanent-magnet brushless DC electric machine |
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| CN103095084B CN103095084B (en) | 2015-09-30 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595194A (en) * | 2013-11-19 | 2014-02-19 | 江苏航天动力机电有限公司 | Method for bonding magnetic steel piece to high-speed permanent magnet synchronous motor |
| CN104539104A (en) * | 2014-12-10 | 2015-04-22 | 贵州航天林泉电机有限公司 | Brushless direct current motor sealing structure |
| CN104600945A (en) * | 2013-10-31 | 2015-05-06 | 北京精密机电控制设备研究所 | High-specific-power and wide-speed-regulation servo motor |
| CN104682647A (en) * | 2014-08-27 | 2015-06-03 | 北京精密机电控制设备研究所 | Ultrahigh-power servomotor |
| CN104702008A (en) * | 2014-08-29 | 2015-06-10 | 北京精密机电控制设备研究所 | Torque servo motor for submarine |
| CN105720778A (en) * | 2016-04-27 | 2016-06-29 | 金仕泽 | Magnetic power mechanism |
| CN107979200A (en) * | 2017-12-05 | 2018-05-01 | 广西恒达电机科技有限公司 | A kind of component of motor positioning rotor retaining ring |
| CN108418370A (en) * | 2018-05-10 | 2018-08-17 | 浙江大学 | The immersion permanent-magnet brushless DC electric machine device of power can be provided under high pressure |
| CN109713820A (en) * | 2018-12-24 | 2019-05-03 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | A kind of oil immersed type magneto |
| CN111724934A (en) * | 2016-06-16 | 2020-09-29 | 住友电装株式会社 | Wire sheath and wire harness |
| CN114374282A (en) * | 2022-03-21 | 2022-04-19 | 天津松正汽车部件有限公司 | Heat radiation structure and motor of stator core |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2428911Y (en) * | 2000-06-12 | 2001-05-02 | 朱向东 | Long-service-life multi-model type permanent magnet brushless servo electric motor |
| CN1305257A (en) * | 2001-01-18 | 2001-07-25 | 合肥工业大学 | Plastic capsulation submerged motor and its capsulation material and technology |
| EP1241773A2 (en) * | 2001-03-14 | 2002-09-18 | Nissan Motor Co., Ltd. | Rotating electrical machine with air-gap sleeve |
| US6515384B1 (en) * | 1999-11-17 | 2003-02-04 | Nissan Motor Co., Ltd. | Motor/generator with equalized coolant distribution |
| CN2765372Y (en) * | 2004-12-08 | 2006-03-15 | 湖南同心科技有限公司 | Dynamic/static pressure bearing electric main shaft |
| CN1889334A (en) * | 2005-06-29 | 2007-01-03 | 中国科学院电工研究所 | External water channel evaporative cooling horizontal motor |
| CN1937371A (en) * | 2006-10-16 | 2007-03-28 | 中山大学 | Alternating current permanent-magnet water-submersible electric machine |
-
2011
- 2011-10-27 CN CN201110332631.XA patent/CN103095084B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6515384B1 (en) * | 1999-11-17 | 2003-02-04 | Nissan Motor Co., Ltd. | Motor/generator with equalized coolant distribution |
| CN2428911Y (en) * | 2000-06-12 | 2001-05-02 | 朱向东 | Long-service-life multi-model type permanent magnet brushless servo electric motor |
| CN1305257A (en) * | 2001-01-18 | 2001-07-25 | 合肥工业大学 | Plastic capsulation submerged motor and its capsulation material and technology |
| EP1241773A2 (en) * | 2001-03-14 | 2002-09-18 | Nissan Motor Co., Ltd. | Rotating electrical machine with air-gap sleeve |
| CN2765372Y (en) * | 2004-12-08 | 2006-03-15 | 湖南同心科技有限公司 | Dynamic/static pressure bearing electric main shaft |
| CN1889334A (en) * | 2005-06-29 | 2007-01-03 | 中国科学院电工研究所 | External water channel evaporative cooling horizontal motor |
| CN1937371A (en) * | 2006-10-16 | 2007-03-28 | 中山大学 | Alternating current permanent-magnet water-submersible electric machine |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104600945A (en) * | 2013-10-31 | 2015-05-06 | 北京精密机电控制设备研究所 | High-specific-power and wide-speed-regulation servo motor |
| CN103595194A (en) * | 2013-11-19 | 2014-02-19 | 江苏航天动力机电有限公司 | Method for bonding magnetic steel piece to high-speed permanent magnet synchronous motor |
| CN104682647A (en) * | 2014-08-27 | 2015-06-03 | 北京精密机电控制设备研究所 | Ultrahigh-power servomotor |
| CN104702008A (en) * | 2014-08-29 | 2015-06-10 | 北京精密机电控制设备研究所 | Torque servo motor for submarine |
| CN104539104A (en) * | 2014-12-10 | 2015-04-22 | 贵州航天林泉电机有限公司 | Brushless direct current motor sealing structure |
| CN105720778A (en) * | 2016-04-27 | 2016-06-29 | 金仕泽 | Magnetic power mechanism |
| CN111724934A (en) * | 2016-06-16 | 2020-09-29 | 住友电装株式会社 | Wire sheath and wire harness |
| CN107979200A (en) * | 2017-12-05 | 2018-05-01 | 广西恒达电机科技有限公司 | A kind of component of motor positioning rotor retaining ring |
| CN108418370A (en) * | 2018-05-10 | 2018-08-17 | 浙江大学 | The immersion permanent-magnet brushless DC electric machine device of power can be provided under high pressure |
| CN108418370B (en) * | 2018-05-10 | 2023-11-24 | 浙江大学 | Immersed permanent magnet brushless DC motor device capable of providing power under high pressure condition |
| CN109713820A (en) * | 2018-12-24 | 2019-05-03 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | A kind of oil immersed type magneto |
| CN114374282A (en) * | 2022-03-21 | 2022-04-19 | 天津松正汽车部件有限公司 | Heat radiation structure and motor of stator core |
| CN114374282B (en) * | 2022-03-21 | 2022-07-12 | 天津松正汽车部件有限公司 | Heat radiation structure and motor of stator core |
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| CN103095084B (en) | 2015-09-30 |
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