CN102361368A - Efficiently-cooling motor with axial flow draft fan - Google Patents
Efficiently-cooling motor with axial flow draft fan Download PDFInfo
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- CN102361368A CN102361368A CN2011103370327A CN201110337032A CN102361368A CN 102361368 A CN102361368 A CN 102361368A CN 2011103370327 A CN2011103370327 A CN 2011103370327A CN 201110337032 A CN201110337032 A CN 201110337032A CN 102361368 A CN102361368 A CN 102361368A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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Abstract
The invention relates to a motor, in particular to an efficiently-cooling motor with an axial flow draft fan. The efficiently-cooling motor with the axial flow draft fan solves the problems of low protection level, low low-speed heat-dissipating performance, large volume, heavy weight, small power and torque, low overload capacity and heat-dissipating difficulty of the conventional traction motor of the urban electric vehicles. The efficiently-cooling motor with the axial flow draft fan comprises a stator assembly, a rotor assembly, a shell, an end cover of a transmission end and an end cover of a non-transmission end, wherein a first flange is arranged at the transmission end of the shell; a second flange is arranged at the non-transmission end of the shell; the outer side end face of the second flange and the inner side end face of the end cover of the non-transmission end jointly enclose a transmission end cover air duct; and the axial flow draft fan is arranged in the transmission end cover air duct. The efficiently-cooling motor with the axial flow draft fan effectively solves the problems of low protection level, low low-speed heat-dissipating performance, large volume, heavy weight, small power and torque, low overload capacity and heat-dissipating difficulty of the conventional traction motor of the urban electric vehicles, and is applicable to traction of the urban electric vehicles.
Description
Technical field
The present invention relates to motor, specifically is a kind of motor of tape spool stream air exhauster of efficient cooling.
Background technology
The core of city electric car is a power-driven system, and its power-driven system comprises controller and traction electric machine.Characteristics such as the exceptional operating conditions of city electric car requires that its traction electric machine has speed-regulating range width, overload capacity is big, peak power is high, moment of inertia is little, cooling heat radiation system is good, volume is little, in light weight, degree of protection height.The traction electric machine that is applied to the city electric car at present is mainly self-ventilated machine and totally-enclosed machine.Self-ventilated machine can directly distribute the motor internal heat, and it has advantages such as peak power height, overload capacity is high, volume is little, in light weight, but there is the low shortcoming of degree of protection in it.During work, motor internal directly communicates with outside atmosphere, and dust, rainwater, dust storm all can directly be attacked critical components such as motor internal winding, bearing, causes motor operational failure rate height, reliability low.Owing to have rotary fan in the inner rotating shaft of self-ventilated machine, when electric car Fraquent start, braking, motor speed is low, electric current is big in the city, and the fan inside rotating speed is low, and cooling effect is poor, so also there is the shortcoming of low speed heat dispersion difference in self-ventilated machine.Degree of protection is low, the low speed heat dispersion differs from two big shortcomings makes self-ventilated machine be difficult to satisfy well the application requirements of city electric car.The advantage of totally-enclosed machine is that degree of protection is high, and after motor internal sealed fully, rainwater, dust storm, dust were difficult to the motor internal parts are attacked; The electrical fault rate is little, reliability is high, but its shortcoming is: because after adopting all-sealed structure, the heat that the motor internal thermal source produces is difficult to effectively distribute; Motor windings and bearing temperature can be very high; And too high winding and bearing temperature affect the reliable use of motor, can cause electrical machinery life to shorten, even under overload situations, burn winding.The totally-enclosed machine internal heat is inhomogeneous, has the too high point of local temperature, affects motor and uses.For ensureing that motor reliably uses, have to reduce motor and use power and moment of torsion, increase motor volume and weight.Therefore totally-enclosed machine exists also that volume is big, Heavy Weight, power and shortcomings such as moment of torsion is little, overload capacity is low, the difficulty of dispelling the heat, and above-mentioned shortcoming makes totally-enclosed machine be difficult to satisfy well the application requirements of city electric car equally.Based on this; Be necessary to invent a kind of brand-new motor that can satisfy city electric car application requirements, existing city electric car traction motor degree of protection is low, the low speed heat dispersion is poor, volume big to solve, Heavy Weight, power and the problem that moment of torsion is little, overload capacity is low and heat radiation is difficult.
Summary of the invention
Existing city electric car traction motor degree of protection is low, the low speed heat dispersion is poor, volume big in order to solve in the present invention, Heavy Weight, power is with moment of torsion is little, overload capacity is low and the problem of heat radiation difficulty, provides a kind of tape spool of efficient cooling to flow the motor of air exhauster.
The present invention adopts following technical scheme to realize: the motor of the tape spool stream air exhauster of efficient cooling comprises stator assembling, rotor assembling, casing, driving end end cap and non-transmision end end cap; The driving end of casing is equipped with first flange, and the driving end end cap is connected with the driving end of casing through first flange; The non-transmision end of casing is equipped with second flange, and the non-transmision end end cap is connected with the non-transmision end of casing through second flange; The casing upper edge is axially arranged with several cooling fins, and each fin is along the circumferential direction evenly distributed in the casing lateral surface; The fin outside is arranged with the tubular fan housing, and tubular fan housing one end and second flange are fixed; Casing lateral surface and tubular fan housing medial surface surround the outer air channel of casing jointly; Second flange outside end face and non-transmision end end cap inner side end surround non-transmision end end cap air channel jointly; Have cooling vent on second end face of flange, the outer air channel of casing is communicated with non-transmision end end cap air channel through cooling vent; The non-transmision end end cap is provided with axial flow blower in the air channel, and axial flow blower is mounted on non-transmision end end cap inner side end.
During work, axial flow blower is supplied power by independent current source.The heat that the motor internal thermal source produces distributes through casing and fin.Start axial flow blower, axial flow blower produces cooling air, and cooling air flows through the outer air channel of casing, cooling vent, non-transmision end end cap air channel successively, after the end face discharge of the non-transmision end end cap outside.Cooling air during the air channel, carries out heat exchange with casing and fin, thereby the heat on casing and the fin is taken away outside the casing of flowing through, and reaches the purpose of cooling heat dissipation.In this process, the effect of fin is to increase motor surface radiating area, helps the motor heat and distributes, and fin also plays a part reinforcement simultaneously, has higher bulk strength when making motor case thin, thereby has reduced motor weight.Based on said process; Compare with existing city electric car traction motor; The motor of the tape spool stream air exhauster of efficient cooling of the present invention has following advantage: one, compare with self-ventilated machine; The motor internal of the tape spool stream air exhauster of efficient cooling of the present invention adopts all-sealed structure; Can effectively completely cut off of the invasion and attack of poor environments such as external dust, rainwater, dust storm, guarantee that motor has high reliability, less trouble, low maintainability, has solved the low problem of self-ventilated machine degree of protection the motor internal parts.The motor of the tape spool stream air exhauster of efficient cooling of the present invention simultaneously adopts the axial flow blower by the independent current source power supply; Electric car Fraquent start, when braking in the city; Axial flow blower can guarantee cooling effect, has solved the problem of self-ventilated machine low speed heat dispersion difference.Two, compare with totally-enclosed machine; The motor of the tape spool stream air exhauster of efficient cooling of the present invention is based on outer air channel of the casing of brand-new design and non-transmision end end cap air channel; Matching design through air channel and axial flow motor; Make that the wind path air loss is very little, can bring into play the blower fan cooling performance to greatest extent, make heat-sinking capability be greatly improved; It is bigger to make power of motor and moment of torsion, overload capacity, peak power compare common totally-enclosed machine thus, and volume is compared common totally-enclosed machine with weight littler.In sum; The motor of the tape spool of efficient cooling of the present invention stream air exhauster is based on the cooling structure of brand-new design, solved effectively thoroughly that existing city electric car traction motor degree of protection is low, the low speed heat dispersion is poor, volume big, Heavy Weight, power and the problem that moment of torsion is little, overload capacity is low and heat radiation is difficult.Practice shows, the motor of the tape spool stream air exhauster of efficient cooling of the present invention is when being applied to the city electric car, and degree of protection is high, reliability is high, moment of torsion is with power is big, volume is little, in light weight, peak value and overload capacity are big, the cooling capacity excellence.
Further, non-transmision end end cap outside end face is pasted with circular deep bead, and the lateral surface of circular deep bead flushes with the lateral surface of casing.Deep bead can effectively improve the air output of cooling air, further enhanced cooling.
The present invention is based on the cooling structure of brand-new design; Efficiently solve that existing city electric car traction motor degree of protection is low, the low speed heat dispersion is poor, volume big, Heavy Weight, power and the problem that moment of torsion is little, overload capacity is low and heat radiation is difficult, be applicable to the city electric car traction.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of second flange of the present invention.
Fig. 3 is the structural representation of non-transmision end end cap of the present invention.
Fig. 4 is the mounting structure sketch map of the non-transmision end end cap of the present invention and second flange.
Among the figure: 1-casing, 2-driving end end cap, 3-non-transmision end end cap, 4-first flange, 5-second flange, 6-fin, 7-tubular fan housing, the outer air channel of 8-casing, 9-non-transmision end end cap air channel, 10-cooling vent, 11-axial flow blower, the circular deep bead of 12-.
Embodiment
The motor of the tape spool stream air exhauster of efficient cooling comprises stator assembling, rotor assembling, casing 1, driving end end cap 2 and non-transmision end end cap 3; The driving end of casing 1 is equipped with first flange 4, and driving end end cap 2 is connected with the driving end of casing 1 through first flange 4; The non-transmision end of casing 1 is equipped with second flange 5, and non-transmision end end cap 3 is connected with the non-transmision end of casing 1 through second flange 5; Casing 1 upper edge is axially arranged with several cooling fins 6, and each fin 6 is along the circumferential direction evenly distributed in casing 1 lateral surface; Fin 6 outsides are arranged with tubular fan housing 7, and tubular fan housing 7 one ends and second flange 5 are fixing; Casing 1 lateral surface and tubular fan housing 7 medial surfaces surround the outer air channel 8 of casing jointly; Second flange, 5 outside end faces and non-transmision end end cap 3 inner side ends surround non-transmision end end cap air channel 9 jointly; Have cooling vent 10 on second flange, 5 end faces, the outer air channel 8 of casing is communicated with non-transmision end end cap air channel 9 through cooling vent 10; Be provided with axial flow blower 11 in the non-transmision end end cap air channel 9, axial flow blower 11 is mounted on non-transmision end end cap 3 inner side ends;
Non-transmision end end cap 3 outside end faces are pasted with circular deep bead 12, and the lateral surface of circular deep bead 12 flushes with the lateral surface of casing 1;
During practical implementation, fin and tubular fan housing all adopt thin-wall construction, can effectively reduce motor weight.
Claims (2)
1. the motor of the tape spool of efficient cooling stream air exhauster comprises stator assembling, rotor assembling, casing (1), driving end end cap (2) and non-transmision end end cap (3); It is characterized in that: the driving end of casing (1) is equipped with first flange (4), and driving end end cap (2) is connected with the driving end of casing (1) through first flange (4); The non-transmision end of casing (1) is equipped with second flange (5), and non-transmision end end cap (3) is connected with the non-transmision end of casing (1) through second flange (5); Casing (1) upper edge is axially arranged with several cooling fins (6), and each fin (6) is along the circumferential direction evenly distributed in casing (1) lateral surface; Fin (6) outside is arranged with tubular fan housing (7), and tubular fan housing (7) one ends and second flange (5) are fixing; Casing (1) lateral surface and tubular fan housing (7) medial surface surround the outer air channel (8) of casing jointly; Second flange (5) outside end face and non-transmision end end cap (3) inner side end surround non-transmision end end cap air channel (9) jointly; Have cooling vent (10) on second flange (5) end face, the outer air channel (8) of casing is communicated with non-transmision end end cap air channel (9) through cooling vent (10); Be provided with axial flow blower (11) in the non-transmision end end cap air channel (9), axial flow blower (11) is mounted on non-transmision end end cap (3) inner side end.
2. the tape spool of efficient cooling according to claim 1 flows the motor of air exhauster, it is characterized in that: non-transmision end end cap (3) outside end face is pasted with circular deep bead (12), and the lateral surface of circular deep bead (12) flushes with the lateral surface of casing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103370327A CN102361368A (en) | 2011-10-31 | 2011-10-31 | Efficiently-cooling motor with axial flow draft fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103370327A CN102361368A (en) | 2011-10-31 | 2011-10-31 | Efficiently-cooling motor with axial flow draft fan |
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| Publication Number | Publication Date |
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| CN102361368A true CN102361368A (en) | 2012-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011103370327A Pending CN102361368A (en) | 2011-10-31 | 2011-10-31 | Efficiently-cooling motor with axial flow draft fan |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103973058A (en) * | 2014-05-20 | 2014-08-06 | 江苏远中电机股份有限公司 | Asynchronous motor for blender |
| CN106382261A (en) * | 2016-11-21 | 2017-02-08 | 南京磁谷科技有限公司 | Air cooling structure of magnetic suspension draught fan |
| CN107317434A (en) * | 2017-08-17 | 2017-11-03 | 安徽皖南电机股份有限公司 | Variable-frequency motor |
| CN108736619A (en) * | 2018-09-04 | 2018-11-02 | 四方科技集团股份有限公司 | A kind of stainless steel motor of quick freezing repository wind turbine |
| CN111884406A (en) * | 2020-07-31 | 2020-11-03 | 燕山大学 | High-speed motor pump heat abstractor and motor pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101789649A (en) * | 2010-04-09 | 2010-07-28 | 永济新时速电机电器有限责任公司 | Motor with mixed-flow fan for circulating inner and outer air paths |
| CN201629634U (en) * | 2010-01-19 | 2010-11-10 | 天津神川机电有限公司 | Vibration-resistant variable-frequency speed regulating motor with forced cooling system |
| CN201639411U (en) * | 2010-03-26 | 2010-11-17 | 永济新时速电机电器有限责任公司 | Lightweight fully enclosed motor housing |
| CN201854141U (en) * | 2010-11-16 | 2011-06-01 | 安徽皖南电机股份有限公司 | Air hood of closed heat dissipation system outside motor |
| CN202260855U (en) * | 2011-10-31 | 2012-05-30 | 永济新时速电机电器有限责任公司 | Motor with axial flow fan capable of efficiently cooling |
-
2011
- 2011-10-31 CN CN2011103370327A patent/CN102361368A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201629634U (en) * | 2010-01-19 | 2010-11-10 | 天津神川机电有限公司 | Vibration-resistant variable-frequency speed regulating motor with forced cooling system |
| CN201639411U (en) * | 2010-03-26 | 2010-11-17 | 永济新时速电机电器有限责任公司 | Lightweight fully enclosed motor housing |
| CN101789649A (en) * | 2010-04-09 | 2010-07-28 | 永济新时速电机电器有限责任公司 | Motor with mixed-flow fan for circulating inner and outer air paths |
| CN201854141U (en) * | 2010-11-16 | 2011-06-01 | 安徽皖南电机股份有限公司 | Air hood of closed heat dissipation system outside motor |
| CN202260855U (en) * | 2011-10-31 | 2012-05-30 | 永济新时速电机电器有限责任公司 | Motor with axial flow fan capable of efficiently cooling |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103973058A (en) * | 2014-05-20 | 2014-08-06 | 江苏远中电机股份有限公司 | Asynchronous motor for blender |
| CN103973058B (en) * | 2014-05-20 | 2016-08-17 | 江苏远中电机股份有限公司 | Blender asynchronous motor |
| CN106382261A (en) * | 2016-11-21 | 2017-02-08 | 南京磁谷科技有限公司 | Air cooling structure of magnetic suspension draught fan |
| CN107317434A (en) * | 2017-08-17 | 2017-11-03 | 安徽皖南电机股份有限公司 | Variable-frequency motor |
| CN108736619A (en) * | 2018-09-04 | 2018-11-02 | 四方科技集团股份有限公司 | A kind of stainless steel motor of quick freezing repository wind turbine |
| CN111884406A (en) * | 2020-07-31 | 2020-11-03 | 燕山大学 | High-speed motor pump heat abstractor and motor pump |
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Application publication date: 20120222 |