CN203482014U - Magnetic suspension permanent-magnet synchronous high-power high-speed draught fan - Google Patents

Magnetic suspension permanent-magnet synchronous high-power high-speed draught fan Download PDF

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Publication number
CN203482014U
CN203482014U CN201320541001.8U CN201320541001U CN203482014U CN 203482014 U CN203482014 U CN 203482014U CN 201320541001 U CN201320541001 U CN 201320541001U CN 203482014 U CN203482014 U CN 203482014U
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CN
China
Prior art keywords
stator core
fan
rotor
air inlet
motor
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Expired - Lifetime
Application number
CN201320541001.8U
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Chinese (zh)
Inventor
熊伟华
董继勇
杜志军
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Nanjing Cigu Technology Co Ltd
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Nanjing Cigu Technology Co Ltd
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Priority to CN201320541001.8U priority Critical patent/CN203482014U/en
Application granted granted Critical
Publication of CN203482014U publication Critical patent/CN203482014U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

A magnetic suspension permanent-magnet synchronous high-power high-speed draught fan comprises a draught fan shell body, an impeller and a motor rotor. An air inlet and an air outlet are arranged on the draught fan shell body, and the impeller is arranged on one side, opposite to the air inlet, of a motor rotor shaft in a reverse mode. The permanent-magnet rotor is arranged in a stator fin-shaped (for heat dissipation through a shell) core, a heat dissipation ventilation duct is reserved between the motor rotor and the stator core, the stator core is in a segmental shape, and heat dissipation ventilation ducts are formed in the stator core. Fan blades and motor windings are disposed in positions, on the two sides of the stator core, of the motor rotor, and each fan blade is arranged between the stator core and the corresponding motor winding. Two radial magnetic bearings which are disposed on the sides, away from the stator core, of the motor windings respectively are further mounted on the motor rotor, wherein one radial magnetic bearing is mounted at the air inlet of the motor. An axial flow fan is arranged between the motor windings and the radial magnetic bearings. The draught fan further comprises two axial magnetic bearings which are disposed on the side, away from the stator iron core, of the radial bearing which is mounted at the air inlet of the motor, and a suction disk type axial flow fan is arranged between the two axial magnetic bearings.

Description

The synchronous Large-power High-Speed blower fan of a kind of magnetic suspension permanent magnet
Technical field
The utility model relates to the synchronous Large-power High-Speed blower fan of a kind of magnetic suspension permanent magnet, relates in particular to the air-cooled interior air intake heat radiation of a kind of multistage, and magnetic suspension permanent magnet synchronous high-speed frequency conversion fan more than power 30KW.
Background technology
The conventional type of cooling of high-speed electric expreess locomotive is free air cooling but at present, the cooling and evaporative cooling of liquid cover.Air cooled high-speed electric expreess locomotive system is without leakage problem, easy to maintenance, but cooling effectiveness is very low, and motor volume is large; Liquid overlaps cooling employing oil or water-ethylene glycol as coolant, and general and rotor share from fanning wind cooling; Evaporative cooling adopts the working medium such as R123 as coolant, and cooling effectiveness is the highest, but difficult in maintenance.Wherein, liquid cover stator cooling with from fanning the cooling scheme combining of rotor, adopt the most extensively, technology is maturation comparatively also.
Summary of the invention
The utility model provides a kind of magnetic suspension permanent magnet synchronous Large-power High-Speed blower fan, and it is by filling impeller is counter, and in blower fan, all intakes are by motor housing, and cooling heat dissipation effect is all good.
The utility model adopts following technical scheme: the synchronous Large-power High-Speed blower fan of a kind of magnetic suspension permanent magnet, comprise Blower Housing, impeller and rotor, on described Blower Housing, be provided with air inlet and air outlet, described impeller is counter mounted on a side relative with described air inlet on rotor, described stator core is installed on rotor, between described rotor and stator core, leave heat dissipation ventilation road, described stator core is segmentation shape, on it, be provided with some heat dissipation ventilations road, the both sides that are positioned at stator core on described rotor are respectively arranged with the motor winding of fan leaf and next-door neighbour's fan leaf, described fan leaf is arranged between stator core and motor winding, the radial direction magnetic bearing away from stator core one side that is positioned at described motor winding is also installed on described rotor, described radial direction magnetic bearing includes two altogether, one of them is installed on the air inlet place of motor, between described motor winding and radial direction magnetic bearing, be provided with the aerofoil fan being installed on rotor, the utility model magnetic suspension permanent magnet synchronous high-speed frequency conversion fan also includes axial magnetic bearing, described axial magnetic bearing is positioned at the side away from stator core of the radial direction magnetic bearing that is installed on air inlet place, described axial magnetic bearing includes two altogether, and between two axial magnetic bearings, be provided with the suction disc type aerofoil fan being installed on rotor.
Described two radial direction magnetic bearings are installed on respectively the both sides of described stator core.
Described two axial magnetic bearings are all installed between described air inlet and described stator core.
The power of described magnetic suspension permanent magnet synchronous high-speed frequency conversion fan is more than 30KW.
The utlity model has following beneficial effect: the synchronous Large-power High-Speed blower fan of the utility model magnetic suspension permanent magnet is by filling impeller is counter, and in blower fan, all intakes are by motor housing, and cooling heat dissipation effect is all good.
Accompanying drawing explanation
Fig. 1 is the perspective view of the synchronous Large-power High-Speed blower fan of the utility model the first embodiment magnetic suspension permanent magnet.
Fig. 2 is another structural representation of the synchronous Large-power High-Speed blower fan of the first embodiment magnetic suspension permanent magnet shown in Fig. 1.
Fig. 3 is the generalized section of the A-A along the line of the synchronous Large-power High-Speed blower fan of the first embodiment magnetic suspension permanent magnet shown in Fig. 2.
Fig. 4 is the perspective view of the synchronous Large-power High-Speed blower fan of the utility model the second embodiment magnetic suspension permanent magnet.
Wherein:
1-Blower Housing; 2-impeller; 3-rotor; 4-stator core; 5 fan leafs; 6-motor winding; 7-radial direction magnetic bearing; 8-aerofoil fan; 9-axial magnetic bearing; 10-air inlet; 11-air outlet; 12-suction disc type aerofoil fan; A, b-heat dissipation ventilation road.
Embodiment
Please refer to shown in Fig. 1 to Fig. 3, the synchronous Large-power High-Speed blower fan of the utility model the first embodiment magnetic suspension permanent magnet mainly comprises Blower Housing 1 and impeller 2, on Blower Housing 1, be provided with air inlet 10 and air outlet 11, an axially upper side relative with air inlet 10 of Blower Housing 1 is provided with impeller 2, and impeller 2 is counter mounted on rotor 3.Stator core 4 is installed on rotor 3, leaves heat dissipation ventilation road a between rotor 3 and stator core 4.Stator core 4 is segmentation shape, is provided with some heat dissipation ventilations road b on it.The both sides that are positioned at stator core 4 on rotor 3 are respectively arranged with the motor winding 6 of fan leaf 5 and next-door neighbour's fan leaf 5, and fan leaf 5 is arranged between stator core 4 and motor winding 6.The radial direction magnetic bearing 7 of installing on rotor 3 is positioned at the side away from stator core 4 of motor winding 6.Between motor winding 6 and radial direction magnetic bearing 7, be provided with the aerofoil fan 8 being installed on rotor 3.Radial direction magnetic bearing 7 includes two altogether, and one of them is installed on air inlet 10 places of motor.The synchronous Large-power High-Speed blower fan of the utility model the first embodiment magnetic suspension permanent magnet also includes axial magnetic bearing 9, this axial magnetic bearing 9 is positioned at the side away from stator core 4 of the radial direction magnetic bearing 7 that is installed on air inlet 10 places, axial magnetic bearing 9 includes two altogether, and between two axial magnetic bearings 9, is provided with the suction disc type aerofoil fan 12 being installed on rotor 1.
During work, blower fan High Rotation Speed is (more than its power can reach 30KW, turn scooter 12000-50000 rev/min), impeller 2 sucks gas from air inlet 10, through exhaust outlet 11, discharge, impeller 2 instead fills, and in blower fan, all intakes all enter into the heat dissipation ventilation road (the arrow part of Fig. 3) of Blower Housing by aerofoil fan 8 and suction disc type aerofoil fan 12.The heat of discharging during by this kind of method blower fan work is drawn in blower fan completely, and all intakes all pass through blower fan, and cooling heat dissipation effect increases, thereby blower fan is operated under security context.
It is more than the structural representation of the synchronous Large-power High-Speed blower fan of the utility model the first embodiment magnetic suspension permanent magnet, its external form is horizontal type structure, another conventional alternative structure as the synchronous Large-power High-Speed blower fan of the utility model the first embodiment magnetic suspension permanent magnet, Fig. 4 is the synchronous Large-power High-Speed blower fan of a kind of magnetic suspension permanent magnet of vertical structure, wherein the synchronous Large-power High-Speed blower fan of vertical magnetic suspension permanent magnet is identical with the internal structure of horizontal magnetic suspension permanent-magnet synchronous Large-power High-Speed blower fan, different is only the different of Blower Housing structure, here for the synchronous Large-power High-Speed blower fan of magnetic suspension permanent magnet of the vertical structure shown in Fig. 4, just no longer specifically set forth.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art, under the prerequisite that does not depart from the utility model principle, can also make some improvement, these improvement also should be considered as protection range of the present utility model.

Claims (4)

1. the synchronous Large-power High-Speed blower fan of magnetic suspension permanent magnet, it is characterized in that: comprise Blower Housing (1), impeller (2) and rotor (3), on described Blower Housing (1), be provided with air inlet (10) and air outlet (11), described impeller (2) is counter mounted on the upper side relative with described air inlet (10) of rotor (3), stator core (4) is installed on rotor (3), between described rotor (3) and stator core (4), leave heat dissipation ventilation road (a), described stator core (4) is segmentation shape, on it, be provided with some heat dissipation ventilations road (b), the both sides that are positioned at stator core (4) on described rotor (3) are respectively arranged with the motor winding (6) of fan leaf (5) and next-door neighbour's fan leaf (5), described fan leaf (5) is arranged between stator core (4) and motor winding (6), the radial direction magnetic bearing away from stator core (4) one sides (5) that is positioned at described motor winding (6) is also installed on described rotor (3), described radial direction magnetic bearing (7) includes two altogether, one of them is installed on the air inlet (10) of motor and locates, between described motor winding (6) and radial direction magnetic bearing (7), be provided with the aerofoil fan (8) being installed on rotor (3), the utility model magnetic suspension permanent magnet synchronous high-speed frequency conversion fan also includes axial magnetic bearing (9), described axial magnetic bearing (9) is positioned at the side away from stator core (4) that is installed on the radial direction magnetic bearing (7) that air inlet (10) locates, described axial magnetic bearing (9) includes two altogether, and between two axial magnetic bearings (9), be provided with the suction disc type aerofoil fan (12) being installed on rotor (1).
2. the synchronous Large-power High-Speed blower fan of a kind of magnetic suspension permanent magnet as claimed in claim 1, is characterized in that: described two radial direction magnetic bearings (7) are installed on respectively the both sides of described stator core (4).
3. the synchronous Large-power High-Speed blower fan of a kind of magnetic suspension permanent magnet as claimed in claim 1, is characterized in that: described two axial magnetic bearings (9) are all installed between described air inlet (10) and described stator core (4).
4. the synchronous Large-power High-Speed blower fan of a kind of magnetic suspension permanent magnet as claimed in claim 1, is characterized in that: the power of described magnetic suspension permanent magnet synchronous high-speed frequency conversion fan is more than 30KW.
CN201320541001.8U 2013-09-02 2013-09-02 Magnetic suspension permanent-magnet synchronous high-power high-speed draught fan Expired - Lifetime CN203482014U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320541001.8U CN203482014U (en) 2013-09-02 2013-09-02 Magnetic suspension permanent-magnet synchronous high-power high-speed draught fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320541001.8U CN203482014U (en) 2013-09-02 2013-09-02 Magnetic suspension permanent-magnet synchronous high-power high-speed draught fan

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103441612A (en) * 2013-09-02 2013-12-11 南京磁谷科技有限公司 Magnetic suspension permanent-magnet synchronous high-power high-speed draught fan
CN105332932A (en) * 2015-12-09 2016-02-17 南京磁谷科技有限公司 Explosion-proof and leak-proof magnetic suspension fan
CN106451881A (en) * 2016-11-21 2017-02-22 南京磁谷科技有限公司 Magnetic suspension air blower air cooling structure
CN110571971A (en) * 2019-11-06 2019-12-13 山东天瑞重工有限公司 magnetic suspension motor with negative pressure air cooling device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103441612A (en) * 2013-09-02 2013-12-11 南京磁谷科技有限公司 Magnetic suspension permanent-magnet synchronous high-power high-speed draught fan
CN105332932A (en) * 2015-12-09 2016-02-17 南京磁谷科技有限公司 Explosion-proof and leak-proof magnetic suspension fan
CN106451881A (en) * 2016-11-21 2017-02-22 南京磁谷科技有限公司 Magnetic suspension air blower air cooling structure
CN110571971A (en) * 2019-11-06 2019-12-13 山东天瑞重工有限公司 magnetic suspension motor with negative pressure air cooling device
CN110571971B (en) * 2019-11-06 2020-03-03 山东天瑞重工有限公司 Magnetic suspension motor with negative pressure air cooling device

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GR01 Patent grant
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CP03 Change of name, title or address

Address after: 211102 No.99, Jinxin Middle Road, Jiangning District, Nanjing City, Jiangsu Province

Patentee after: Nanjing Cigu Technology Co.,Ltd.

Address before: Nine No. 211102 Bamboo Road, Jiangning Development Zone, Nanjing, Jiangsu, 100

Patentee before: NANJING CIGU Ltd.,Corp.

CP03 Change of name, title or address
CX01 Expiry of patent term

Granted publication date: 20140312

CX01 Expiry of patent term