CN103490541A - High-speed motor self-cooling rotor - Google Patents

High-speed motor self-cooling rotor Download PDF

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Publication number
CN103490541A
CN103490541A CN201310447703.4A CN201310447703A CN103490541A CN 103490541 A CN103490541 A CN 103490541A CN 201310447703 A CN201310447703 A CN 201310447703A CN 103490541 A CN103490541 A CN 103490541A
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CN
China
Prior art keywords
cooling
rotor
mandrel
speed electric
expreess locomotive
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201310447703.4A
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Chinese (zh)
Inventor
胡思宁
董继勇
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Nanjing Cigu Technology Co Ltd
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Nanjing Cigu Technology Co Ltd
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Application filed by Nanjing Cigu Technology Co Ltd filed Critical Nanjing Cigu Technology Co Ltd
Priority to CN201310447703.4A priority Critical patent/CN103490541A/en
Publication of CN103490541A publication Critical patent/CN103490541A/en
Pending legal-status Critical Current

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  • Motor Or Generator Cooling System (AREA)

Abstract

A high-speed motor self-cooling rotor comprises a mandrel and a protective sleeve located on the local periphery of the mandrel, an iron core is arranged in the middle of the mandrel, permanent magnets are arranged between the protective sleeve and the iron core, a plurality of C-shaped magnetic isolation conducting bars for partitioning the permanent magnets are arranged in the permanent magnets, a cooling channel of the high-speed self-cooling rotor is formed in a central groove of the C-shaped magnetic isolation conducting bars, the tail end of the cooling channel is communicated with an air exhaust hole in the protective sleeve, a center hole allowing cooling air to enter is formed in one end of the high-speed self-cooling rotor, the center hole extends to the iron core, a centrifugal vane wheel pushing the cooling air in the outside world into the cooling channel of the high-speed self-cooling rotor is arranged on a position, adjacent to the iron core, of the center hole, and a flow diversion row is formed in the center of the centrifugal vane wheel. According to the high-speed motor self-cooling rotor, a centrifugal fan or an axial flow fan is arranged, heat in the rotor is effectively transferred out, and damage produced by overheating of the rotor is avoided.

Description

High-speed electric expreess locomotive is from cooling rotor
Technical field
The present invention relates to a kind of high-speed electric expreess locomotive from cooling rotor, belong to machine field.
Background technology
High-speed electric expreess locomotive is because volume is little, power density is large, so heat dissipation problem is comparatively serious.Especially the rotor of high-speed electric expreess locomotive, because the impact of its compact conformation, unbalance mass, is serious, and, in the high speed rotary state, can't install cooling system commonly used, and the heat wherein produced is difficult to transmit out, often causes rotor overheated.Current normal air-cooled, liquid cooling or the transpiration-cooled method of adopting of high speed rotor of motor.The fluid resistance of liquid-cooling system is large, and motor speed is restricted, and the electrical machine insulation performance requirement is high; Evaporative cooling is effective, but needs special evaporant, and has leakage problem; Air-cooled structure is simple, pollution-free, but is subject to structural limitations, and cooling effect is poor.If strengthen the rotor air gap in order to improve air cooling effect, can cause leakage field between stator tooth, affect electric efficiency and output torque.As fin is installed on rotor, can increase air gap equally, and increase wind abrasion mistake, also likely affect dynamic balance performance.
Therefore, the necessary deficiency of prior art being improved to solve prior art.
Summary of the invention
The invention provides a kind of high-speed electric expreess locomotive from cooling rotor, it can effectively solve the heating problem of High speed Rotating Mechanical Devices or high speed rotor of motor.
The present invention adopts following technical scheme: a kind of high-speed electric expreess locomotive comprises mandrel and is positioned at the sheath of mandrel local peripheral from cooling rotor, the centre position of described mandrel is provided with iron core, be provided with permanent magnet between described sheath and iron core, in described permanent magnet, be provided with the separated some C types of permanent magnet every the magnetic conductance bar, described C type forms the cooling duct of high-speed electric expreess locomotive from cooling rotor every the central channel of magnetic conductance bar, steam vent UNICOM on described cooling duct end and sheath, described high-velocity electrons offer from an end of cooling rotor the centre bore entered for cooling air, described centre bore extends to iron core, on described centre bore, contiguous position unshakable in one's determination is equipped with extraneous cooling-air is pushed into to the centrifugal impeller of described high-speed electric expreess locomotive in the cooling duct of cooling rotor, the center of described centrifugal impeller is formed with water conservancy diversion row.
Described steam vent is set to a circle or multi-turn.
The present invention also adopts following technical scheme: a kind of high-speed electric expreess locomotive comprises mandrel and is positioned at the sheath of mandrel local peripheral from cooling rotor, the centre position of described mandrel is provided with iron core, be provided with permanent magnet between described sheath and iron core, in described permanent magnet, arrange by by the separated some C types of permanent magnet every the magnetic conductance bar, described C type forms the cooling duct of high-speed electric expreess locomotive from cooling rotor every the central channel of magnetic conductance bar, steam vent UNICOM on described cooling duct end and sheath, the shaft shoulder place of described mandrel is provided with extraneous cooling-air is pushed into to the axial wheel of described high-speed electric expreess locomotive in the cooling duct of cooling rotor.
The present invention adopts again following technical scheme: a kind of high-speed electric expreess locomotive comprises mandrel and is positioned at the sheath of mandrel local peripheral from cooling rotor, the centre position of described mandrel is provided with iron core, be provided with permanent magnet between described sheath and iron core, in described permanent magnet, be provided with the separated some C types of permanent magnet every the magnetic conductance bar, described C type forms the cooling duct of high-speed electric expreess locomotive from cooling rotor every the central channel of magnetic conductance bar, steam vent UNICOM on described cooling duct end and sheath, the shaft shoulder place of described mandrel is provided with the centrifugal impeller that described heat is shed.
The present invention has following beneficial effect: high-speed electric expreess locomotive of the present invention, and then effectively transmits out by the heat in rotor by centrifugal fan or aerofoil fan are set from cooling rotor, avoids overheated the produced harm of rotor.
The accompanying drawing explanation
Fig. 1 is the structure chart of first embodiment of the invention high-speed electric expreess locomotive from cooling rotor.
Fig. 2 is that high-speed electric expreess locomotive shown in Fig. 1 is from the profile of cooling rotor A-A along the line.
Fig. 3 is that high-speed electric expreess locomotive shown in Fig. 1 is from the profile of cooling rotor B-B along the line.
Fig. 4 is that high-speed electric expreess locomotive shown in Fig. 1 is from the profile of cooling rotor C-C along the line.
Fig. 5 is the local structural graph of second embodiment of the invention high-speed electric expreess locomotive from cooling rotor.
Fig. 6 is the structure charts of third embodiment of the invention high-velocity electrons from cooling rotor.
Wherein:
The 1-mandrel; The 2-sheath; The 3-iron core; The 4-permanent magnet; The 5-C type is every the magnetic conductance bar; The 6-steam vent; The 7-centre bore; The 8-centrifugal impeller; 9-water conservancy diversion row; The 10-axial wheel; The 11-cooling duct; The F-cooling-air; The G-exhaust.
Embodiment
Please refer to Fig. 1 and in conjunction with shown in Fig. 2 to Fig. 4, the first embodiment of the invention high-speed electric expreess locomotive comprises mandrel 1 and is positioned at the sheath 2 of mandrel 1 local peripheral from cooling rotor.The centre position of mandrel 1 is provided with unshakable in one's determination 3, be provided with permanent magnet 4 between sheath 2 and unshakable in one's determination 3, in permanent magnet 4, arrange the separated some C types of permanent magnet 4 every magnetic conductance bar 5, wherein the C type forms high-speed electric expreess locomotive from the cooling duct 11 of cooling rotor every the central channel of magnetic conductance bar 5, and in the end of cooling duct 11 and steam vent 6 UNICOMs on sheath 2.The first embodiment of the invention high-velocity electrons offer from an end of cooling rotor the centre bore 7 entered for cooling air, this centre bore 7 extends to unshakable in one's determination 3 always, on centre bore 7, contiguous unshakable in one's determination 3 position is equipped with extraneous cooling-air is pushed into to the centrifugal impeller 8 of described high-speed electric expreess locomotive in the cooling duct 11 of cooling rotor simultaneously, and the center of centrifugal impeller 8 is formed with water conservancy diversion row 9.
The first embodiment of the invention high-speed electric expreess locomotive from the operation principle of cooling rotor is: environment cools air F flows into centrifugal impeller 8 through centre bore 7, the environment cools air is centrifuged power and accelerates to throw away along radial direction, and be centrifuged impeller 8 pressurization, air stream after boosting is the steam vent in magnetic conductance bar 56 through the C type, and the heat of absorption C type in magnetic conductance bar 5 and permanent magnet 4, cooled rotor.Hot-air is discharged from the steam vent 6 of sheath 2 other ends.
The first embodiment of the invention high-speed electric expreess locomotive utilizes the gyration of high speed rotor to promote air from cooling rotor, make cooling-air can from internal rotor by and the permanent magnet 4 that the most easily generates heat of cooled rotor, C type every magnetic conductance bar 5 and sheath 2, avoid rotor overheated.
Please refer to shown in Fig. 5, further improvement as the first embodiment of the invention high-speed electric expreess locomotive from cooling rotor, the second embodiment of the invention high-speed electric expreess locomotive is in cooling rotor, do not offer the centre bore entered for cooling air on rotor as larger as diameter, it can change centrifugal impeller 8 into axial wheel 10, and being directly installed on shaft shoulder place, cool ambient air directly enters axial wheel 10 and enter cooling duct 11 under axial wheel 10 promotes.This structure cooling air delivery is larger, and cooling effect is better, but is not suitable for the minor diameter rotor.
Please refer to shown in Fig. 6, further improvement as the first embodiment of the invention high-speed electric expreess locomotive from cooling rotor, the third embodiment of the invention high-speed electric expreess locomotive is in cooling rotor, also do not offer centre bore on High-speed Electric loom cooled rotor in this embodiment, on its motor comparatively well-to-do at stator space, the 3rd embodiment high-speed electric expreess locomotive is provided with centrifugal impeller 8(external diameter from the shaft shoulder place of the mandrel 1 of cooling rotor and is greater than the maximum diameter of axle).The third embodiment of the invention high-speed electric expreess locomotive from the operation principle of cooling rotor is: allow cooling-air F from cooling duct 11 the end away from centrifugal impeller 8 first through cooling duct 11, and then enter the centrifugal impeller 8(external diameter that is arranged at shaft shoulder place and be greater than the maximum diameter of axle).By centrifugal impeller 8, heat is shed, in this structure, coolant temperature is lower, and cooling effect is better.
The diameter of the steam vent 6 of high-speed electric expreess locomotive in cooling rotor of mentioning in aforementioned three embodiment that mention and quantity, according to gas flow, can arrange a circle or multi-turn.The cooling-air quantity not sufficient provided as single centrifugal impeller 8 or axial wheel 9, also can be in two ends of rotor be all installed same axle air intake duct and centrifugal impeller 8 or axial wheel 9, and the pore that begins to rehearse at the sheath middle part.
High-speed electric expreess locomotive of the present invention can effectively solve the heating problem of High speed Rotating Mechanical Devices or high speed rotor of motor from cooling rotor.
The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, can also make some improvement under the premise without departing from the principles of the invention, and these improvement also should be considered as protection scope of the present invention.

Claims (4)

1. a high-speed electric expreess locomotive comprises mandrel (1) and is positioned at the sheath (2) of mandrel (1) local peripheral from cooling rotor, it is characterized in that: the centre position of described mandrel (1) is provided with iron core (3), be provided with permanent magnet (4) between described sheath (2) and (3) unshakable in one's determination, in described permanent magnet (4), be provided with the separated some C types of permanent magnet (4) every magnetic conductance bar (5), described C type forms the cooling duct (11) of high-speed electric expreess locomotive from cooling rotor every the central channel of magnetic conductance bar (5), steam vent (6) UNICOM on described cooling duct (11) end and sheath (2), described high-velocity electrons offer from an end of cooling rotor the centre bore (7) entered for cooling air, described centre bore (7) extends to iron core (3), be equipped with and extraneous cooling-air be pushed into to the centrifugal impeller (8) of described high-speed electric expreess locomotive in the cooling duct (11) of cooling rotor in the position of described centre bore (7) upper contiguous (3) unshakable in one's determination, the center of described centrifugal impeller (8) is formed with water conservancy diversion row (9).
2. high-speed electric expreess locomotive as claimed in claim 1, from cooling rotor, is characterized in that: described steam vent (6) is set to a circle or multi-turn.
3. a high-speed electric expreess locomotive comprises mandrel (1) and is positioned at the sheath (2) of mandrel (1) local peripheral from cooling rotor, it is characterized in that: the centre position of described mandrel (1) is provided with iron core (3), be provided with permanent magnet (4) between described sheath (2) and (3) unshakable in one's determination, arrange in described permanent magnet (4) by by the separated some C types of permanent magnet (4) every magnetic conductance bar (5), described C type forms the cooling duct (11) of high-speed electric expreess locomotive from cooling rotor every the central channel of magnetic conductance bar (5), steam vent (6) UNICOM on described cooling duct (11) end and sheath (2), the shaft shoulder place of described mandrel (1) is provided with extraneous cooling-air is pushed into to the axial wheel (10) of described high-speed electric expreess locomotive in the cooling duct (11) of cooling rotor.
4. a high-speed electric expreess locomotive comprises mandrel (1) and is positioned at the sheath (2) of mandrel (1) local peripheral from cooling rotor, it is characterized in that: the centre position of described mandrel (1) is provided with iron core (3), be provided with permanent magnet (4) between described sheath (2) and (3) unshakable in one's determination, in described permanent magnet (4), be provided with the separated some C types of permanent magnet (4) every magnetic conductance bar (5), described C type forms the cooling duct (11) of high-speed electric expreess locomotive from cooling rotor every the central channel of magnetic conductance bar (5), steam vent (6) UNICOM on described cooling duct (11) end and sheath (2), the shaft shoulder place of described mandrel (1) is provided with the centrifugal impeller (8) that described heat is shed.
CN201310447703.4A 2013-09-27 2013-09-27 High-speed motor self-cooling rotor Pending CN103490541A (en)

Priority Applications (1)

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CN201310447703.4A CN103490541A (en) 2013-09-27 2013-09-27 High-speed motor self-cooling rotor

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Application Number Priority Date Filing Date Title
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015127691A1 (en) * 2014-02-27 2015-09-03 睿能机电有限公司 Imbedded permanent magnet rotor for direct-current brushless motor
CN105576898A (en) * 2015-11-06 2016-05-11 钱月珍 Centrifugal heat-dissipating motor
CN107749678A (en) * 2017-11-27 2018-03-02 北京交通大学 A kind of permanent magnet machine rotor sheath cooling structure device
CN111884379A (en) * 2020-07-31 2020-11-03 上海化工研究院有限公司 Through-flow air cooling rotor and high-speed motor
CN113708566A (en) * 2021-09-29 2021-11-26 中车株洲电机有限公司 Surface-mounted high-speed permanent magnet motor and motor cooling air path

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1104000A (en) * 1993-09-15 1995-06-21 Abb管理有限公司 Luftgekuhlte rotierende elektrische machine
CN101534032A (en) * 2007-12-14 2009-09-16 喷射马达有限公司 Method and structure for cooling an electric motor
JP2009290979A (en) * 2008-05-29 2009-12-10 Toyota Motor Corp Permanent magnet-type motor
CN101604876A (en) * 2009-06-23 2009-12-16 哈尔滨理工大学 Fan-cooled rotor in shaft of high-speed permanent magnet motor
CN101777810A (en) * 2010-03-31 2010-07-14 哈尔滨工业大学 Automatic inner-cooling rotor of high speed permanent magnet synchronous motor
CN203574465U (en) * 2013-09-27 2014-04-30 南京磁谷科技有限公司 High-speed motor self-cooling rotor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1104000A (en) * 1993-09-15 1995-06-21 Abb管理有限公司 Luftgekuhlte rotierende elektrische machine
CN101534032A (en) * 2007-12-14 2009-09-16 喷射马达有限公司 Method and structure for cooling an electric motor
JP2009290979A (en) * 2008-05-29 2009-12-10 Toyota Motor Corp Permanent magnet-type motor
CN101604876A (en) * 2009-06-23 2009-12-16 哈尔滨理工大学 Fan-cooled rotor in shaft of high-speed permanent magnet motor
CN101777810A (en) * 2010-03-31 2010-07-14 哈尔滨工业大学 Automatic inner-cooling rotor of high speed permanent magnet synchronous motor
CN203574465U (en) * 2013-09-27 2014-04-30 南京磁谷科技有限公司 High-speed motor self-cooling rotor

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015127691A1 (en) * 2014-02-27 2015-09-03 睿能机电有限公司 Imbedded permanent magnet rotor for direct-current brushless motor
CN105576898A (en) * 2015-11-06 2016-05-11 钱月珍 Centrifugal heat-dissipating motor
CN105576898B (en) * 2015-11-06 2017-11-28 新昌县羽林街道鑫博机械厂 Centrifuge radiating motor
CN107749678A (en) * 2017-11-27 2018-03-02 北京交通大学 A kind of permanent magnet machine rotor sheath cooling structure device
CN107749678B (en) * 2017-11-27 2019-12-03 北京交通大学 A kind of permanent magnet machine rotor sheath cooling structure device
CN111884379A (en) * 2020-07-31 2020-11-03 上海化工研究院有限公司 Through-flow air cooling rotor and high-speed motor
CN113708566A (en) * 2021-09-29 2021-11-26 中车株洲电机有限公司 Surface-mounted high-speed permanent magnet motor and motor cooling air path

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Application publication date: 20140101