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CN110535291A - A kind of totally-enclosed machine with heat sinking function - Google Patents

A kind of totally-enclosed machine with heat sinking function Download PDF

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Publication number
CN110535291A
CN110535291A CN201810507430.0A CN201810507430A CN110535291A CN 110535291 A CN110535291 A CN 110535291A CN 201810507430 A CN201810507430 A CN 201810507430A CN 110535291 A CN110535291 A CN 110535291A
Authority
CN
China
Prior art keywords
rotor
cooling
bearing
totally
hole
Prior art date
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
CN201810507430.0A
Other languages
Chinese (zh)
Inventor
刘春秀
李坤
彭俊
何思源
罗英露
辛本雨
刘雄
冯守智
盛振强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CRRC Zhuzhou Institute Co Ltd
Original Assignee
CRRC Zhuzhou Institute Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CRRC Zhuzhou Institute Co Ltd filed Critical CRRC Zhuzhou Institute Co Ltd
Priority to CN201810507430.0A priority Critical patent/CN110535291A/en
Publication of CN110535291A publication Critical patent/CN110535291A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K9/00Arrangements for cooling or ventilating
    • H02K9/02Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06Arrangements 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
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K9/00Arrangements for cooling or ventilating
    • H02K9/08Arrangements for cooling or ventilating by gaseous cooling medium circulating wholly within the machine casing

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

The present invention provides a kind of totally-enclosed machine with heat sinking function, including stator module, rotor assembly and two end covers, the rotor assembly includes shaft, rotor core and two rotor pressing rings, the shaft and end cover and stator module are enclosed motor seal space, the rotor core and rotor pressing ring are set in the motor seal space, and it is rotated with shaft, between the stator module and rotor assembly, and interior circulating cooling air duct is equipped with inside the rotor core, the rotor pressing ring is equipped with the radiator shutter for promoting the hot wind in motor seal space cooling in interior circulating cooling duct flows.The present invention has many advantages, such as internal good cooling results, and meets motor miniaturization requirement.

Description

A kind of totally-enclosed machine with heat sinking function
Technical field
The present invention relates to motor device field more particularly to a kind of totally-enclosed machines with heat sinking function.
Background technique
As the miniaturization of train becomes trend, also gesture exists the miniaturization of the motor as train important component It must go.The load capacity that the miniaturization of motor bears motor unit volume will become larger, the heat that unit volume generates It will increase, it is more harsh to the cooling structure of motor.Especially for low, wheel footpath is small, running environment is severe motor from the ground, To prevent iron filings, water, ground refuse etc. from entering inside motor, motor is usually totally-enclosed self-ventilation structure.Totally-enclosed self-ventilation The motor of structure, compared to open-type structure and forced ventilation structure poor cooling performance, low efficiency.
And the cooling air of existing totally-enclosed machine cannot be introduced into directly cooling winding and rotor inside motor,
So that can not sufficiently take away the heat generated inside motor, lead to motor internal temperature height, poor cooling performance;And Fore bearing is cooled down by the hot wind for cooling down stator, and fore bearing temperature is increased, and cooling effect is poor.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, provide a kind of internal good cooling results, and Meet the totally-enclosed machine with heat sinking function of motor miniaturization requirement.
In order to solve the above technical problems, technical solution proposed by the present invention are as follows:
A kind of totally-enclosed machine with heat sinking function, including stator module, rotor assembly and two end covers, described turn Sub-component includes shaft, rotor core and two rotor pressing rings, and the shaft and end cover and stator module are enclosed motor Sealing space, the rotor core and rotor pressing ring are set in the motor seal space, and are rotated with shaft, the stator pack Interior circulating cooling air duct is equipped between part and rotor assembly and inside the rotor core, the rotor pressing ring, which is equipped with, to be used In the radiator shutter for promoting the hot wind in motor seal space cooling in interior circulating cooling duct flows.
As a further improvement of the above technical scheme:
The interior circulating cooling air duct includes rotor radiating segment, and the rotor radiating segment includes multiple along rotor core circumferential direction The both ends of spaced apart rotor heat dissipation channel, the rotor heat dissipation channel extend respectively on the rotor pressing ring of respective side, and It is connected to motor seal space.
Each rotor heat dissipation channel is horizontally disposed along the axial direction of rotor core.
The rotor radiating segment is at least two groups, and rotor radiating segment described in multiple groups is arranged along the radial direction of rotor core.
Two end covers are installed in the shaft by bearing, and two end covers are equal close to the position of bearing Equipped with bearing cooling hole, the bearing cooling hole is equipped with seal cover board close to the one end in motor seal space.
One end of the shaft is fixedly installed with the radiator fan for sucking external cooling wind, and the radiator fan is equipped with cold But through-hole, the cooling through-hole and the bearing cooling hole on the end cover of radiator fan setting are positioned opposite;It is described to dissipate There are the ventilation gaps for end cover and the discharge of bearing heat between Hot-air fan and the end cover of close radiator fan setting.
The bearing cooling hole is multiple, circumferentially-spaced arrangement of multiple bearing cooling holes along bearing;The cooling The quantity of through-hole is identical as the quantity of the bearing cooling hole, and the cooling through-hole is set with bearing cooling hole one-to-one correspondence It sets.
The periphery of two end covers and stator module is equipped with outer circulation cooling air channel, close to the close of radiator fan setting Sealing end is covered with the accommodating space for placing radiator fan, and the accommodating space and ventilation gap are cooling with the outer circulation Air duct connection.
The outer circulation cooling air channel includes the axial heat dissipation channel on two end covers, and is set to the stator Stator heat dissipation channel on component, the both ends of the stator heat dissipation channel are connect with the axial heat dissipation channel of respective side respectively.
The side of the accommodating space is equipped with air inlet opening, and the air inlet opening is equipped with the air inlet web plate with air inlet.
Compared with the prior art, the advantages of the present invention are as follows:
The present invention is equipped with interior circulating cooling air duct between stator module and rotor assembly and inside rotor core, The cooled flow space of hot wind in motor seal space is provided, and interior circulating cooling air duct is not necessarily to occupy additional space, It is reasonable in design, ingenious, effectively take full advantage of motor inner space;Meanwhile rotor pressing ring is equipped with radiator shutter, heat dissipation The setting of blade promotes the hot wind in motor seal space in the flowing cooling in interior circulating cooling air duct, and it is fixed to effectively reduce The temperature rise of sub-component and rotor assembly improves the security performance of the cooling effect and motor inside motor.I.e. the present invention is protecting While demonstrate,proving effectively cooling inside motor, the requirement of motor miniaturization is met.
The present invention is further equipped with bearing cooling hole close to the position of bearing in two end covers, makes the stream of cooling wind Dynamic rail mark facilitates cooling wind and bearing and end cover carries out heat exchange, the heat that bearing generates at this time is filled close to bearing It point takes away, thus the problem of accelerating cooling for bearing, avoiding dead bearing, damage, ensure that motor operation can By property and safety.
Detailed description of the invention
The invention will be described in more detail below based on embodiments and refering to the accompanying drawings.Wherein:
Fig. 1 is the structural schematic diagram for the totally-enclosed machine that the present invention has heat sinking function.
Each label indicates in figure:
1, stator module;11, stator core;12, winding;2, rotor assembly;21, shaft;22, rotor core;23, rotor Pressing ring;3, end cover;31, bearing cooling hole;32, seal cover board;33, accommodating space;331, air inlet opening;4, motor seal Space;5, interior circulating cooling air duct;51, rotor heat dissipation channel;52, air gap is recycled;6, bearing;7, radiator fan;71, cooling logical Hole;8, ventilation gap;9, outer circulation cooling air channel;91, axial heat dissipation channel;92, stator heat dissipation channel;10, web plate is entered the wind.
Specific embodiment
The present invention is described in further details below in conjunction with Figure of description and specific embodiment, but not therefore and It limits the scope of the invention.
As shown in Figure 1, the totally-enclosed machine with heat sinking function of the present embodiment, including stator module 1, rotor assembly 2 And two end cover 3.Stator module 1 include stator core 11 and winding 12, the both ends of stator core 11 respectively with respective side End cover 3 connects, and winding 12 is set around in stator core 11.Rotor assembly 2 includes shaft 21, rotor core 22 and two rotors Pressing ring 23, wherein shaft 21 is arranged in two end covers 3, and shaft 21 and end cover 3 and stator module 1 are enclosed electricity Machine sealing space 4;22 fixing assembling of rotor core is and positioned opposite with stator core 11 in shaft 21;Two rotor pressing rings 23 Fixing assembling is pressed in the both ends of stator core 11 in shaft 21;It is close that rotor core 22 and rotor pressing ring 23 are set to motor It seals in space 4, when shaft 21 rotates, rotor core 22 and two rotor pressing rings 23 are rotated together with shaft 21.In the present embodiment, Interior circulating cooling air duct 5, two rotor pressing rings 23 are equipped between stator core 11 and rotor core 22 and inside rotor core 22 On be equipped with radiator shutter, the setting of radiator shutter promotes the hot wind in motor seal space 4 in interior circulating cooling air duct 5 Flowing cooling.
The present invention is equipped with interior circulating cooling air duct between stator module 1 and rotor assembly 2 and inside rotor core 22 5, the cooled flow space of hot wind in motor seal space 4 is provided, and interior circulating cooling air duct 5 is without occupying additional sky Between, it is reasonable in design, ingenious, effectively take full advantage of motor inner space;Meanwhile rotor pressing ring 23 is equipped with heat dissipation leaf Piece, the setting of radiator shutter promote the hot wind in motor seal space 4 in the flowing cooling in interior circulating cooling air duct 5, have Effect reduces the temperature rise of stator module 1 Yu rotor assembly 2, improves the security performance of the cooling effect and motor inside motor. I.e. the present invention meets the requirement of motor miniaturization while guaranteeing effectively cooling inside motor.
In the present embodiment, interior circulating cooling air duct 5 includes rotor radiating segment, and rotor radiating segment includes that multiple rotor heat dissipations are logical Road 51.Multiple rotor heat dissipation channels 51 along the circumferentially-spaced arrangement of rotor core 22, prolong respectively by the both ends of rotor heat dissipation channel 51 It extends on the rotor pressing ring 23 of respective side, and is connected to motor seal space 4.It makes inside rotor assembly 2 in radiator shutter Under the action of can carry out effective heat exchange with cooling wind, realize to the circulating cooling inside motor;Meanwhile multiple rotor heat dissipations are led to The setting in road 51 while meeting motor internal heat dissipating requirement, meets motor miniaturization without occupying exceptional space Requirement.In the present embodiment, interior circulating cooling air duct 5 further include circulation air gap 52, circulation air gap 52 be set to stator core 11 with Between rotor core 22, circulation air gap 52 is connected to rotor heat dissipation channel 51, logical with the circulation cooling for forming motor seal space 4 Road guarantees the heat dissipation effect in motor seal space 4.
As shown in Figure 1, the rotor radiating segment of the present embodiment is two groups.Radial direction of the two group rotor radiating segments along rotor core 22 Arrangement ensure that the heat dissipation effect inside rotor core 22 so that forming heat dissipation circulation canal inside rotor core 22.At other In embodiment example, the requirement that the setting quantity of rotor radiating segment can be designed according to motor thermal design, electromagnetic design and structure is carried out Adjustment, such as may be configured as one group, three groups.
Further, axial direction of each rotor heat dissipation channel 51 of the present embodiment along rotor core 22 is horizontally disposed.It makes Rotor radiating segment rational and compact is obtained, and when rotor radiating segment is multiple groups, so that rotor heat dissipation channel 51 has enough cloth Between emptying.
As shown in Figure 1, two end covers 3 are installed in shaft 21 by bearing 6, two end covers 3 are close to the position of bearing 6 It sets and is equipped with bearing cooling hole 31.It makes the flow trace of cooling wind close to bearing 6, facilitates cooling wind and bearing 6 and close The surface for blocking lid 3 carries out heat exchange, and the heat that bearing 6 generates at this time is fully taken away, to accelerate the cooling drop of bearing 6 Temperature, avoid bearing 6 heat up it is dead, damage the problem of, ensure that the reliability and safety of motor operation.In the present embodiment, Bearing cooling hole 31 close to motor seal space 4 one end be equipped with seal cover board 32, with prevent iron filings, water, ground refuse etc. into Enter inside motor, guarantees totally-enclosed inside motor.
Further, one end of the shaft 21 of the present embodiment is fixedly installed with radiator fan 7, and radiator fan 7 is inhalable outer Portion's cooling wind.Radiator fan 7 is equipped with cooling through-hole 71, cooling through-hole 71 and on the end cover 3 of the setting of radiator fan 7 Bearing cooling hole 31 it is positioned opposite, the cooling wind that radiator fan 7 sucks is rapidly introduced into 31 position of bearing cooling hole, to axis 6 carry out sufficient heat exchanges are held, structure is simple, further ensures the heat dissipation effect of bearing 6.In the present embodiment, radiator fan 7 There are ventilation gaps 8 between the end cover 3 being arranged with close radiator fan 7, generate heat to form end cover 3 and bearing 6 The passing away of amount controls the temperature rise of bearing 6.
Further, the bearing cooling hole 31 of the present embodiment is multiple, and multiple bearing cooling holes 31 are between the circumferential direction of bearing 6 Every arrangement;Meanwhile the quantity of cooling through-hole 71 is identical as the quantity of bearing cooling hole 31, cooling through-hole 71 and bearing cooling hole 31 It is arranged in a one-to-one correspondence.The setting of multiple bearings cooling 31 and cooling through-hole 71 further improves the heat dissipation effect of bearing 6.
Further, the shape of the bearing cooling hole 31 of the present embodiment and cooling through-hole 71 can be used round hole, kidney slot, Polygonal hole, slotted eye and irregularly-shaped hole it is one or more.Meanwhile bearing cooling hole 31 is guaranteeing that 3 structure of end cover is strong Increase as far as possible under the premise of degree, to guarantee the heat dissipation area of bearing 6.
As shown in Figure 1, the periphery of two end covers 3 and stator module 1 is equipped with outer circulation cooling air channel 9.Close to radiation air The end cover 3 of 7 setting of fan is equipped with accommodating space 33, and radiator fan 7 is placed in accommodating space 33, accommodating space 33 and ventilation Gap 8 is connected to outer circulation cooling air channel 9.At this point, cooling wind sucks accommodating space from outside under the action of radiator fan 7 It in 33, is then flowed out through outer circulation cooling air channel 9, during flowing through outer circulation cooling air channel 9, cooling wind is by stator core 11 and the heat that generates of winding 12 take away, realize to the circulating cooling of winding 12, stator core 11.
In the present embodiment, outer circulation cooling air channel 9 includes two axial heat dissipation channels 91 and stator heat dissipation channel 92.Wherein, Two axial heat dissipation channels 91 are divided on two end covers 3, and the axial heat dissipation for the end cover 3 being arranged close to radiator fan 7 is logical Road 91 is connected to accommodating space 33;Stator heat dissipation channel 92 be set to stator module 1 on, the both ends of stator heat dissipation channel 92 respectively with The axial heat dissipation channel 91 of respective side connects, and to form the external cooling channel of totally-enclosed machine, structure is simple, occupied space It is small.
Further, the side of the accommodating space 33 of the present embodiment is equipped with air inlet opening 331.It is equipped at air inlet opening 331 Air inlet web plate 10 with air inlet, to enter accommodating space 33, outer circulation under the action of guaranteeing outside air in radiator fan 7 In cooling air channel 9 and bearing cooling hole 31.
In the present embodiment, the totally-enclosed machine with heat sinking function has interior circulating cooling air duct 5, outer circulation cooling air channel 9 and bearing cooling duct.Outer circulation cooling air channel 9 is connected to outside, and most of heat of motor generation is taken away by forced ventilation Amount;In the inside of totally-enclosed machine, energy balanced motor internal temperature field is produced when motor being made to work in interior circulating cooling air duct 5 Even heat the surface layer for being transmitted to outer circulation cooling air channel 9, then taken away by outer circulation cooling air channel 9;Bearing is cooling logical Bearing cooling hole 31 of the road by end cover 3 close to 6 position of bearing carries out heat exchange to bearing 6, and by ventilation gap 8 and The heat that outer circulation cooling air channel 9 generates bearing 6 is discharged.The present invention uses interior circulating cooling air duct 5, outer circulation cooling air channel 9 and bearing cooling duct combine mode, the poor cooling performance for solving the problems, such as totally-enclosed machine this while, meet entirely Close the requirement of the miniaturization of motor.
In the present embodiment, specific work process is as follows: one, under the turning effort of radiator fan 7, cooling wind is from Inlet Network Plate 10 is inhaled into accommodating space 33 and bearing cooling hole 31, then flows out through outer circulation cooling air channel 9.Wherein, bearing is being flowed through When cooling hole 31, cooling wind and bearing 6 and end cover 3 carry out heat exchange, and the heat that bearing 6 generates is taken away;Meanwhile motor Surrounding has wind out of shape, the surface for the wind waved end cover 3 out of shape not being arranged close to radiator fan 7 and bearing cooling hole 31, the heat that bearing 6 generates is taken away.When flowing through outer circulation cooling air channel 9, cooling wind produces winding 12, stator core 11 Raw heat is taken away, and realizes the circulating cooling to winding 12, stator core 11.Two, in the work of the radiator shutter of rotor pressing ring 23 Under, cooling wind and rotor core 22, stator core 11 and circulation air gap 52 carry out heat exchange, realize to the circulation inside motor It is cooling.
Although by reference to preferred embodiment, invention has been described, the case where not departing from the scope of the present invention Under, various improvement can be carried out to it and can replace component therein with equivalent.Especially, as long as there is no structures to rush Prominent, items technical characteristic mentioned in the various embodiments can be combined in any way.The invention is not limited to texts Disclosed in specific embodiment, but include all technical solutions falling within the scope of the claims.

Claims (10)

1. a kind of totally-enclosed machine with heat sinking function, which is characterized in that including stator module, rotor assembly and two sealed ends Lid, the rotor assembly include shaft, rotor core and two rotor pressing rings, and the shaft and end cover and stator module enclose Motor seal space is formed, the rotor core and rotor pressing ring are set in the motor seal space, and are rotated with shaft, It is characterized in that, interior circulating cooling air duct, institute is equipped between the stator module and rotor assembly and inside the rotor core Rotor pressing ring is stated equipped with the heat dissipation leaf for promoting the hot wind in motor seal space cooling in interior circulating cooling duct flows Piece.
2. the totally-enclosed machine according to claim 1 with heat sinking function, which is characterized in that the interior circulating cooling wind Road includes rotor radiating segment, and the rotor radiating segment includes multiple along the circumferentially spaced rotor heat dissipation channel of rotor core, The both ends of the rotor heat dissipation channel extend respectively on the rotor pressing ring of respective side, and are connected to motor seal space.
3. the totally-enclosed machine according to claim 2 with heat sinking function, which is characterized in that each rotor heat dissipation is logical Road is horizontally disposed along the axial direction of rotor core.
4. the totally-enclosed machine according to claim 2 with heat sinking function, which is characterized in that the rotor radiating segment is extremely It is less two groups, rotor radiating segment described in multiple groups is arranged along the radial direction of rotor core.
5. the totally-enclosed machine as claimed in any of claims 1 to 4 with heat sinking function, which is characterized in that two The end cover is installed in the shaft by bearing, and it is cold that two end covers close to the position of bearing are equipped with bearing But hole, the bearing cooling hole are equipped with seal cover board close to the one end in motor seal space.
6. the totally-enclosed machine according to claim 5 with heat sinking function, which is characterized in that one end of the shaft is solid Equipped with the radiator fan for sucking external cooling wind, the radiator fan is equipped with cooling through-hole for Dingan County, the cooling through-hole with lean on Bearing cooling hole on the end cover of nearly radiator fan setting is positioned opposite;The radiator fan and close radiator fan are arranged End cover between there are for end cover and bearing heat discharge ventilation gap.
7. the totally-enclosed machine according to claim 6 with heat sinking function, which is characterized in that the bearing cooling hole is It is multiple, circumferentially-spaced arrangement of multiple bearing cooling holes along bearing;The quantity of the cooling through-hole and the bearing are cooling The quantity in hole is identical, and the cooling through-hole is arranged in a one-to-one correspondence with the bearing cooling hole.
8. the totally-enclosed machine according to claim 6 with heat sinking function, which is characterized in that two end covers and The periphery of stator module is equipped with outer circulation cooling air channel, and the end cover close to radiator fan setting is equipped with for placing radiation air The accommodating space of fan, the accommodating space and ventilation gap are connected to the outer circulation cooling air channel.
9. the totally-enclosed machine according to claim 8 with heat sinking function, which is characterized in that the outer circulation cooling wind Road includes the axial heat dissipation channel on two end covers, and the stator heat dissipation channel on the stator module, institute The both ends for stating stator heat dissipation channel are connect with the axial heat dissipation channel of respective side respectively.
10. the totally-enclosed machine according to claim 8 with heat sinking function, which is characterized in that the accommodating space Side is equipped with air inlet opening, and the air inlet opening is equipped with the air inlet web plate with air inlet.
CN201810507430.0A 2018-05-24 2018-05-24 A kind of totally-enclosed machine with heat sinking function Pending CN110535291A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810507430.0A CN110535291A (en) 2018-05-24 2018-05-24 A kind of totally-enclosed machine with heat sinking function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810507430.0A CN110535291A (en) 2018-05-24 2018-05-24 A kind of totally-enclosed machine with heat sinking function

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CN110535291A true CN110535291A (en) 2019-12-03

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111342612A (en) * 2020-03-31 2020-06-26 江苏金彭集团有限公司 Motor for new energy automobile
GB2595925A (en) * 2020-06-12 2021-12-15 Jaguar Land Rover Ltd Air flow control apparatus
CN113937953A (en) * 2021-10-22 2022-01-14 中车株洲电机有限公司 Active air supply cooling permanent magnet motor and electric locomotive
CN115360862A (en) * 2022-07-26 2022-11-18 中国科学院理化技术研究所 Free Piston Stirling Generator with High Power Linear Motor Cooling Structure
WO2023060848A1 (en) * 2020-12-25 2023-04-20 利欧集团浙江泵业有限公司 Double-channel water pump which facilitates diversion

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1503433A (en) * 2002-11-25 2004-06-09 ��ʽ���綫֥ All closed external fan cooling type motor
CN101877513A (en) * 2009-12-14 2010-11-03 南车株洲电力机车有限公司 Bearing cooling method and structure
CN202309380U (en) * 2011-08-04 2012-07-04 株洲南车时代电气股份有限公司 Self-fanning totally-enclosed double circulation air cooling motor structure
CN204013074U (en) * 2014-08-08 2014-12-10 南车株洲电机有限公司 Totally-enclosed machine and bearing ventilation cooling system thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1503433A (en) * 2002-11-25 2004-06-09 ��ʽ���綫֥ All closed external fan cooling type motor
CN101877513A (en) * 2009-12-14 2010-11-03 南车株洲电力机车有限公司 Bearing cooling method and structure
CN202309380U (en) * 2011-08-04 2012-07-04 株洲南车时代电气股份有限公司 Self-fanning totally-enclosed double circulation air cooling motor structure
CN204013074U (en) * 2014-08-08 2014-12-10 南车株洲电机有限公司 Totally-enclosed machine and bearing ventilation cooling system thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111342612A (en) * 2020-03-31 2020-06-26 江苏金彭集团有限公司 Motor for new energy automobile
GB2595925A (en) * 2020-06-12 2021-12-15 Jaguar Land Rover Ltd Air flow control apparatus
GB2595925B (en) * 2020-06-12 2023-04-19 Jaguar Land Rover Ltd Air flow control apparatus
WO2023060848A1 (en) * 2020-12-25 2023-04-20 利欧集团浙江泵业有限公司 Double-channel water pump which facilitates diversion
CN113937953A (en) * 2021-10-22 2022-01-14 中车株洲电机有限公司 Active air supply cooling permanent magnet motor and electric locomotive
CN115360862A (en) * 2022-07-26 2022-11-18 中国科学院理化技术研究所 Free Piston Stirling Generator with High Power Linear Motor Cooling Structure
CN115360862B (en) * 2022-07-26 2025-03-18 中国科学院理化技术研究所 Free piston Stirling generator with high power linear motor cooling structure

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Application publication date: 20191203