CN103607073B - The independent three wind path structure motors of high efficiency cooling heat radiation - Google Patents
The independent three wind path structure motors of high efficiency cooling heat radiation Download PDFInfo
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- CN103607073B CN103607073B CN201310622372.3A CN201310622372A CN103607073B CN 103607073 B CN103607073 B CN 103607073B CN 201310622372 A CN201310622372 A CN 201310622372A CN 103607073 B CN103607073 B CN 103607073B
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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
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- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract
The present invention relates to motor, the independent three wind path structure motors of specifically a kind of high efficiency cooling heat radiation.The invention solves the problem that existing motor vehicle traction electric machine cooling capacity is weak, power output is low, output torque is little, overload capacity is weak, volume is large, Heavy Weight, cost are high.The independent three wind path structure motors of high efficiency cooling heat radiation, comprise support, front end housing, rear end cap, stator assembling, rotor assembling; Stator assembling comprises stator core, stator winding; Rotor assembling comprises rotating shaft, rotor core; Outer axial air-gap is left between the internal circular surfaces of support and the outer round surface of stator core; Internal layer axial air-gap is left between the internal circular surfaces of stator core and the outer round surface of rotor core; The end face of rotor core is through offers axial ducts; The forward lumen of support is provided with centrifugal fan; The rear portion outer round surface of support is provided with air duct; The inner chamber of air duct is provided with axial flow blower.The present invention is applicable to motor vehicle.
Description
Technical field
The present invention relates to motor, the independent three wind path structure motors of specifically a kind of high efficiency cooling heat radiation.
Background technology
The core of motor vehicle is power-driven system, and its power-driven system comprises controller and traction electric machine.The particularity of motor vehicle in operational mode, running environment, technical performance etc. requires that its traction electric machine has the features such as power output is high, output torque is large, overload capacity is strong, moment of inertia is little, cooling capacity is strong, volume is little, lightweight, cost is low.Current, the traction electric machine being applied to motor vehicle mainly comprises self-ventilated machine and water-cooled machine.Wherein, motor internal heat directly can be distributed by its inner centrifugal fan by self-ventilated machine, but self-ventilated machine is by the capabilities limits (air quantity of centrifugal fan is little) of its inner centrifugal fan, the problem that ubiquity cooling capacity is weak, power output is low, output torque is little, overload capacity is weak.Therefore, self-ventilated machine is difficult to the application requirement meeting motor vehicle well.Compared with self-ventilated machine, water-cooled machine can take away motor surface heat by cooling water circulation, its cooling capacity is stronger, but water-cooled machine is when being applied to motor vehicle, need at various equipment such as vehicle water tank, water pump, auxiliary circulating equipments, cause the problem that its ubiquity volume is large, Heavy Weight, cost are high.Therefore, water-cooled machine is difficult to the application requirement meeting motor vehicle well equally.Based on this, be necessary to invent a kind of brand-new motor that can meet electric vehicle applications and require, to solve the problem that existing motor vehicle traction electric machine cooling capacity is weak, power output is low, output torque is little, overload capacity is weak, volume is large, Heavy Weight, cost are high.
Summary of the invention
The present invention, in order to solve the problem that existing motor vehicle traction electric machine cooling capacity is weak, power output is low, output torque is little, overload capacity is weak, volume is large, Heavy Weight, cost are high, provides the independent three wind path structure motors of a kind of high efficiency cooling heat radiation.
The present invention adopts following technical scheme to realize: the independent three wind path structure motors of high efficiency cooling heat radiation, comprises support, front end housing, rear end cap, stator assembling, rotor assembling; Stator assembling comprises stator core, stator winding; Rotor assembling comprises rotating shaft, rotor core; Front end housing is fixedly installed in the front end face of support; Rear end cap is fixedly installed in the rear end face of support; Stator winding is wound in stator core; Rotor core is fixedly installed in the middle part of rotating shaft; The internal circular surfaces of support is fixed with axial ribs, and the internal circular surfaces of support is fixed by the outer round surface of axial ribs and stator core; Outer axial air-gap is left between the internal circular surfaces of support and the outer round surface of stator core; Internal layer axial air-gap is left between the internal circular surfaces of stator core and the outer round surface of rotor core; The end face of rotor core is through offers axial ducts; The forward lumen of support is provided with centrifugal fan, and centrifugal fan is fixedly installed in the front portion of rotating shaft; The anterior face of support is through offers the radial exhaust vent of stator and rotor radial exhaust vent, and the radial exhaust vent of stator is positioned at the rear side of rotor radial exhaust vent; The rear portion outer round surface of support is provided with air duct; The front end of air duct is provided with uncovered, and the rear portion outer round surface of the anterior internal circular surfaces of air duct and support is fixed by socket; The rear end of air duct is provided with end wall, and the end wall middle thereof of air duct offers and axially installs through hole; The inner chamber of air duct is provided with axial flow blower, and the casing supporting and fixing of axial flow blower is in axially installing in through hole; The through stator shaft orientation that offers in end face outer ring of rear end cap crosses air holes; The through rotor axial that offers of end face inner ring of rear end cap crosses air holes; The front end of outer axial air-gap, the front end of internal layer axial air-gap are all communicated with the radial exhaust vent of stator by the forward lumen of support; The inner space of air holes and air duct is all crossed in the outer rear end of axial air-gap, the rear end of internal layer axial air-gap by stator shaft orientation; The radial exhaust vent of outer axial air-gap, stator, stator shaft orientation are crossed air holes and are jointly formed the first stator wind path structure; The radial exhaust vent of internal layer axial air-gap, stator, stator shaft orientation are crossed air holes and are jointly formed the second stator wind path structure; The front end of axial ducts is communicated with rotor radial exhaust vent by the forward lumen of support; The inner space of air holes and air duct is crossed in the rear end of axial ducts by rotor axial; Axial ducts, rotor radial exhaust vent, rotor axial are crossed air holes and are jointly formed rotor wind path structure; First stator wind path structure, the second stator wind path structure, rotor wind path structure form three separate and non-interference wind path structures jointly.
During work, axial flow blower is powered by independent current source.Centrifugal fan is driven by rotating shaft and carries out work.Specific works process is as follows: start axial flow blower, axial flow blower blows out cooling air forward, this cooling air is divided into three tunnels: first via cooling air flows through the forward lumen that stator shaft orientation crosses air holes, outer axial air-gap enters support successively, then discharges through the radial exhaust vent of stator.In the process flowing through outer axial air-gap, first via cooling air and stator core and stator winding carry out heat exchange, are taken away by the heat that stator core and stator winding produce thus, realize the cooling to stator core and stator winding.Second road cooling air flows through the forward lumen that stator shaft orientation crosses air holes, internal layer axial air-gap enters support successively, then discharges through the radial exhaust vent of stator.In the process flowing through internal layer axial air-gap, the second road cooling air and stator core and stator winding carry out heat exchange, are taken away by the heat that stator core and stator winding produce thus, realize the cooling to stator core and stator winding.3rd road cooling air flows through the forward lumen that rotor axial crosses air holes, axial ducts enter support successively, then discharges through rotor radial exhaust vent.In the process flowing through axial ducts, heat exchange is carried out in the 3rd road cooling air and rotor core, is taken away by the heat that rotor core produces thus, realizes the cooling to rotor core.Meanwhile, centrifugal fan rotates under the drive of rotating shaft.Under the turning effort of centrifugal fan, the three road cooling airs entering support forward lumen accelerate to discharge from the radial exhaust vent of stator and rotor radial exhaust vent, effectively improve rate of heat exchange thus, thus effectively enhance cooling effect.Based on said process, compared with existing motor vehicle traction electric machine, the independence three wind path structure motor tools of high efficiency cooling heat radiation of the present invention have the following advantages: one, compared with self-ventilated machine, the independent three wind path structure motors of high efficiency cooling heat radiation of the present invention are on the one hand by adopting separate and non-interference three wind path structures (i.e. the first stator wind path structure, second stator wind path structure, rotor wind path structure), achieve stator core, stator winding, the quick cooling of rotor core, on the other hand centrifugal fan is combined with axial flow blower, by utilizing feature that centrifugal fan blast is large and the large feature of axial flow blower air quantity, create enough large cooling air quantity and cooling wind pressure, effectively enhance cooling capacity and overload capacity thus, effectively improve power output, increase effectively output torque.They are two years old, compared with water-cooled machine, the independent three wind path structure motors of high efficiency cooling heat radiation of the present invention are when being applied to motor vehicle, without the need to being equipped with the various equipment such as water tank, water pump, auxiliary circulating equipment, the quick cooling to stator core, stator winding, rotor core can be realized, effectively reduce volume thus, effectively alleviate weight, effectively reduce cost.In sum, the independently three wind path structure motors of high efficiency cooling heat radiation of the present invention are based on the cooling structure of brand-new design, efficiently solve the problem that existing motor vehicle traction electric machine cooling capacity is weak, power output is low, output torque is little, overload capacity is weak, volume is large, Heavy Weight, cost are high, therefore it completely can the application requirement of motor vehicle.
The present invention is based on the cooling structure of brand-new design, efficiently solve the problem that existing motor vehicle traction electric machine cooling capacity is weak, power output is low, output torque is little, overload capacity is weak, volume is large, Heavy Weight, cost are high, be applicable to motor vehicle.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of outer axial air-gap of the present invention.
In figure: 1-support, 2-front end housing, 3-rear end cap, 4-stator core, 5-stator winding, 6-rotating shaft, 7-rotor core, 8-axial ribs, the outer axial air-gap of 9-, 10-internal layer axial air-gap, 11-axial ducts, 12-centrifugal fan, the radial exhaust vent of 13-stator, 14-rotor radial exhaust vent, 15-air duct, 16-axially installs through hole, 17-axial flow blower, 18-stator shaft orientation crosses air holes, and 19-rotor axial crosses air holes.
Embodiment
The independent three wind path structure motors of high efficiency cooling heat radiation, comprise support 1, front end housing 2, rear end cap 3, stator assembling, rotor assembling; Stator assembling comprises stator core 4, stator winding 5; Rotor assembling comprises rotating shaft 6, rotor core 7; Front end housing 2 is fixedly installed in the front end face of support 1; Rear end cap 3 is fixedly installed in the rear end face of support 1; Stator winding 5 is wound in stator core 4; Rotor core 7 is fixedly installed in the middle part of rotating shaft 6;
The internal circular surfaces of support 1 is fixed with axial ribs 8, and the internal circular surfaces of support 1 is fixed by the outer round surface of axial ribs 8 with stator core 4; Outer axial air-gap 9 is left between the internal circular surfaces of support 1 and the outer round surface of stator core 4; Internal layer axial air-gap 10 is left between the internal circular surfaces of stator core 4 and the outer round surface of rotor core 7; The end face of rotor core 7 is through offers axial ducts 11; The forward lumen of support 1 is provided with centrifugal fan 12, and centrifugal fan 12 is fixedly installed in the front portion of rotating shaft 6; The anterior face of support 1 is through offers the radial exhaust vent 13 of stator and rotor radial exhaust vent 14, and the radial exhaust vent 13 of stator is positioned at the rear side of rotor radial exhaust vent 14; The rear portion outer round surface of support 1 is provided with air duct 15; The front end of air duct 15 is provided with uncovered, and the rear portion outer round surface of the anterior internal circular surfaces of air duct 15 and support 1 is fixed by socket; The rear end of air duct 15 is provided with end wall, and the end wall middle thereof of air duct 15 offers axially installation through hole 16; The inner chamber of air duct 15 is provided with axial flow blower 17, and the casing supporting and fixing of axial flow blower 17 is in axially installing in through hole 16; The through stator shaft orientation that offers in the end face outer ring of rear end cap 3 crosses air holes 18; The through rotor axial that offers of the end face inner ring of rear end cap 3 crosses air holes 19; The front end of outer axial air-gap 9, the front end of internal layer axial air-gap 10 are all communicated with the radial exhaust vent 13 of stator by the forward lumen of support 1; The inner space of air holes 18 and air duct 15 is all crossed in the rear end of outer axial air-gap 9, the rear end of internal layer axial air-gap 10 by stator shaft orientation; The radial exhaust vent 13 of outer axial air-gap 9, stator, stator shaft orientation are crossed air holes 18 and are jointly formed the first stator wind path structure; The radial exhaust vent 13 of internal layer axial air-gap 10, stator, stator shaft orientation are crossed air holes 18 and are jointly formed the second stator wind path structure; The front end of axial ducts 11 is communicated with rotor radial exhaust vent 14 by the forward lumen of support 1; The inner space of air holes 19 and air duct 15 is crossed in the rear end of axial ducts 11 by rotor axial; Axial ducts 11, rotor radial exhaust vent 14, rotor axial are crossed air holes 19 and are jointly formed rotor wind path structure; First stator wind path structure, the second stator wind path structure, rotor wind path structure form three separate and non-interference wind path structures jointly.
During concrete enforcement, the number of described axial ribs 8 is several, and each axial ribs 8 circumferentially equidistant arrangement; The number of described axial ducts 11 is several, and each axial ducts 11 circumferentially equidistant arrangement; The number of the radial exhaust vent 13 of described stator is several, and the radial exhaust vent 13 of each stator circumferentially equidistant arrangement; The number of described rotor radial exhaust vent 14 is several, and each rotor radial exhaust vent 14 circumferentially equidistant arrangement; Described stator shaft orientation crosses the number of air holes 18 for several, and each stator shaft orientation crosses air holes 18 circumferentially equidistant arrangement; Described rotor axial crosses the number of air holes 19 for several, and each rotor axial crosses air holes 19 circumferentially equidistant arrangement.
Claims (2)
1. independent three wind path structure motors for high efficiency cooling heat radiation, comprise support (1), front end housing (2), rear end cap (3), stator assembling, rotor assembling; Stator assembling comprises stator core (4), stator winding (5); Rotor assembling comprises rotating shaft (6), rotor core (7); Front end housing (2) is fixedly installed in the front end face of support (1); Rear end cap (3) is fixedly installed in the rear end face of support (1); Stator winding (5) is wound in stator core (4); Rotor core (7) is fixedly installed in the middle part of rotating shaft (6);
It is characterized in that: the internal circular surfaces of support (1) is fixed with axial ribs (8), and the internal circular surfaces of support (1) is fixed by the outer round surface of axial ribs (8) with stator core (4); Outer axial air-gap (9) is left between the internal circular surfaces of support (1) and the outer round surface of stator core (4); Internal layer axial air-gap (10) is left between the internal circular surfaces of stator core (4) and the outer round surface of rotor core (7); The end face of rotor core (7) is through offers axial ducts (11); The forward lumen of support (1) is provided with centrifugal fan (12), and centrifugal fan (12) is fixedly installed in the front portion of rotating shaft (6); The anterior face of support (1) is through offers the radial exhaust vent (13) of stator and rotor radial exhaust vent (14), and the radial exhaust vent (13) of stator is positioned at the rear side of rotor radial exhaust vent (14); The rear portion outer round surface of support (1) is provided with air duct (15); The front end of air duct (15) is provided with uncovered, and the rear portion outer round surface of the anterior internal circular surfaces of air duct (15) and support (1) is fixed by socket; The rear end of air duct (15) is provided with end wall, and the end wall middle thereof of air duct (15) offers and axially installs through hole (16); The inner chamber of air duct (15) is provided with axial flow blower (17), and the casing supporting and fixing of axial flow blower (17) is in axially installing in through hole (16); The through stator shaft orientation that offers in the end face outer ring of rear end cap (3) crosses air holes (18); The through rotor axial that offers of the end face inner ring of rear end cap (3) crosses air holes (19); The front end of outer axial air-gap (9), the front end of internal layer axial air-gap (10) are all communicated with the radial exhaust vent (13) of stator by the forward lumen of support (1); The inner space of air holes (18) and air duct (15) is all crossed in the rear end of outer axial air-gap (9), the rear end of internal layer axial air-gap (10) by stator shaft orientation; Outer axial air-gap (9), the radial exhaust vent (13) of stator, stator shaft orientation are crossed air holes (18) and are jointly formed the first stator wind path structure; The radial exhaust vent (13) of internal layer axial air-gap (10), stator, stator shaft orientation are crossed air holes (18) and are jointly formed the second stator wind path structure; The front end of axial ducts (11) is communicated with rotor radial exhaust vent (14) by the forward lumen of support (1); The inner space of air holes (19) and air duct (15) is crossed in the rear end of axial ducts (11) by rotor axial; Axial ducts (11), rotor radial exhaust vent (14), rotor axial are crossed air holes (19) and are jointly formed rotor wind path structure; First stator wind path structure, the second stator wind path structure, rotor wind path structure form three separate and non-interference wind path structures jointly.
2. the independent three wind path structure motors of high efficiency cooling heat radiation according to claim 1, is characterized in that: the number of described axial ribs (8) is several, and each axial ribs (8) circumferentially equidistant arrangement; The number of described axial ducts (11) is several, and each axial ducts (11) circumferentially equidistant arrangement; The number of the radial exhaust vent (13) of described stator is several, and radial exhaust vent (13) the circumferentially equidistant arrangement of each stator; The number of described rotor radial exhaust vent (14) is several, and each rotor radial exhaust vent (14) circumferentially equidistant arrangement; Described stator shaft orientation crosses the number of air holes (18) for several, and each stator shaft orientation crosses air holes (18) circumferentially equidistant arrangement; Described rotor axial crosses the number of air holes (19) for several, and each rotor axial crosses air holes (19) circumferentially equidistant arrangement.
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| CN201310622372.3A CN103607073B (en) | 2013-11-30 | 2013-11-30 | The independent three wind path structure motors of high efficiency cooling heat radiation |
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| CN201310622372.3A CN103607073B (en) | 2013-11-30 | 2013-11-30 | The independent three wind path structure motors of high efficiency cooling heat radiation |
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| CN103607073B true CN103607073B (en) | 2015-11-04 |
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Address after: 044500 Yongji City, Shanxi Province, the city of motor street, No. 18, No. Patentee after: CRRC YONGJI ELECTRIC CO., LTD. Address before: 044500 Yongji City, Shanxi Province, the city of motor street, No. 18, No. Patentee before: Yongji Xinshisu Motor Electrical Appliance Co., Ltd. |
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