CN101626178A - Closed air-cooling motor - Google Patents
Closed air-cooling motor Download PDFInfo
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- CN101626178A CN101626178A CN200910075028A CN200910075028A CN101626178A CN 101626178 A CN101626178 A CN 101626178A CN 200910075028 A CN200910075028 A CN 200910075028A CN 200910075028 A CN200910075028 A CN 200910075028A CN 101626178 A CN101626178 A CN 101626178A
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- motor
- fan housing
- fan
- closed air
- cooling
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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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Abstract
The invention relates to a closed air-cooling motor which belongs to the technical field of motors. The closed air-cooling motor comprises a motor body, an axial flow fan and a fan cover, wherein the motor body is in a full-sealed mode, and a shell is in a round shape; the fan cover is of a polygonal fan cover, the motor body is inscribed in the polygonal fan cover, and an independent air channel is formed between the polygonal fan cover and the motor body; an arc-shaped deflector is arranged in the air channel on the polygonal fan cover along the axial position of the motor; one end of a stator core shaft of the axial flow fan is fixed on a centering circular hole on an end cover of the motor, and the other end of the stator core shaft of the axial flow fan is fixed on a positioning circular hole on a support plate of the fan. The closed air-cooling motor enhances the heat-dissipation capacity of the motor at the same time of ensuring that the motor has favorable dustproof performance, can reduce the axial size and the radial size of a motor shaft, and improves the cost performance and the applicability of the motor. The closed air-cooling motor is suitable for traction motors with middle or small powers in the fields of electric vehicles, railway cars, metallurgy, coal mines, and the like.
Description
Technical field
The present invention relates to motor, particularly the air-cooled structure of motor is specially closed air-cooling motor.
Background technology
In the colliery, special application fields such as metallurgy, railcar, electric automobile, motor faces specific (special) requirements such as the operational environment dust is big, live load intensity is big, the volume size restriction is tight, objectively dustproof the and heat-sinking capability to motor has proposed requirements at the higher level.Yet preventing dust requires motor airtight, and heat radiation requires the well-ventilated, and these two becomes a principal contradiction that faces in the design of electrical motor.
The type of cooling of existing motor mainly contains: forms such as open type forced air cooling, enclosed are natural air cooled, recirculated water cooling, enclosed are air-cooled.The open type forced air cooling, motor radiating is effective, but anti-dust performance is poor; Enclosed is natural air cooled, and dust tightness is good but heat-sinking capability is poor, and motor volume weight is big; The heat-sinking capability of recirculated water cooling is strong, good dustproof effect, and power of motor density is big, but water circulation system and electric machine structure are all complicated and expensive; Enclosed air-cooled structure dust tightness is good, and heat-sinking capability is inferior to water-cooled, and simple in structure, reliable, cost performance is high, is a kind of motor with air cooling that field such as colliery, metallurgy, railway locomotive, subway motor-car, electric automobile special applications require that adapts to.
At present, existing closed air-cooling motor only has the concentric cylinder type air-duct apparatus, and its weak point is that the motor profile diameter enlarges two air channel height, and motor center is high to be strengthened, and volume enlarges, and brings difficulty for the car load mounting arrangements.Simultaneously, to the concurrent flow mistake, radiating effect is not ideal enough along motor shaft for cooling air.The deficiency of the big and heat-sinking capability of volume reduces the cost performance of motor, especially can not adapt to growing special-purpose fields such as low-floor electric automobile to motor diameter and the heat radiation requirement of harshness more.
Summary of the invention
The present invention does not have good dust-proof function and heat sinking function simultaneously in order to solve existing closed air-cooling motor, and problem such as motor size is excessive, and a kind of closed air-cooling motor is provided.
The present invention adopts following technical scheme to realize: closed air-cooling motor, comprise motor body, axial flow blower, fan housing, and described motor body is all-sealed, and casing is circular; Described fan housing is the polygon fan housing, and motor body is inscribed within the polygon fan housing, forms independently air channel between polygon fan housing and motor body; Be provided with arc deflector in the air channel of described polygon fan housing upper edge motor body axial location; Described axial flow blower is the outer rotor shaft flow fan, and stator core shaft one end of outer rotor shaft flow fan is fixedly arranged on the centering circular hole on the motor body end cap, and the other end places on the centering circular hole on the blower fan support plate of polygon fan housing one end.
As shown in Figure 1, hermetically sealed motor circular support is inscribed within the polygon fan housing, thereby between motor body and polygon fan housing, form four uniform independent ventilation passages, on fan housing, each air channel is provided with the cooling-air baffle of arc along the motor body axial location, thereby forms the vent passages of changes of section, and this variable cross-section air channel can change the flow direction of wind, form local pressure reduction, help improving leaving air temp; Simultaneously, four uniform air channels have formed the temperature difference band that rule distributes on the electric machine stand surface, have strengthened heat conduction, have improved heat-sinking capability.
Because fan housing is polygonized structure, and the motor inscribe is in fan housing, thus form independently vent passages at motor body and polygon fan housing edge, thus reduced the radial dimension of closed air-cooling motor.Described axial flow blower is the outer rotor shaft flow fan, stator core shaft one end of outer rotor shaft flow fan is fixed on the centering circular hole on the motor body end cap, the other end is fixed on the centering circular hole of the blower fan support plate on the polygon fan housing, has reduced the axial dimension of closed air-cooling motor like this.
Closed air-cooling motor of the present invention, when guaranteeing that closed air-cooling motor has good anti-dust performance, strengthened the heat-sinking capability of closed air-cooling motor, simultaneously can reduce closed air-cooling motor and axially reach radial dimension, the cost performance and the applicability of closed air-cooling motor have been improved, be particluarly suitable for dust atmosphere, the use down of high strength load environment, can use equally on the equipment to volume, dimensional requirement harshness.
Description of drawings
Fig. 1 is a closed air-cooling motor structural representation sketch;
Fig. 2 is the not right view of installation shaft flow fan and blower fan support plate of closed air-cooling motor;
Fig. 3 is the right view of Fig. 1;
Fig. 4 is a closed air-cooling motor air channel lateral cross section sketch;
Fig. 5 is a closed air-cooling motor air channel axial cross section sketch.
In the accompanying drawing: 1-motor body, 2-polygon fan housing, 3-arc deflector, 4-axial flow blower, 5-air channel, 6-blower fan support plate, 7-fixed head, 8, the 9-circular hole of feeling relieved, θ 1, θ 2, θ 3, θ 4, θ 5, L1, L2, L3-air channel.
Embodiment
Now in conjunction with the accompanying drawings the specific embodiment of the present invention is described further.
As shown in Figure 1, 2, 3, closed air-cooling motor comprises motor body, axial flow blower, fan housing, and described motor body 1 is all-sealed, and casing is circular; Described fan housing is a polygon fan housing 2, and motor body 1 is inscribed within 2 li of polygon fan housings, forms independently air channel 5 between polygon fan housing 2 and motor body 1; The air channel of described polygon fan housing 2 upper edge motor bodies 1 axial location is provided with arc deflector 3 for 5 li; Described axial flow blower 4 is the outer rotor shaft flow fan, and stator core shaft one end of outer rotor shaft flow fan places on the centering circular hole 8 on motor body 1 end cap, and the other end places on the centering circular hole 9 on the blower fan support plate 6 of polygon fan housing 2 one ends.
The embodiment of polygon fan housing of the present invention is an example with the quadrangle fan housing, as shown in Figure 2, the fan housing of closed air-cooling motor adopts quadrilateral structure, thereby between four jiaos of motor body 1 and quadrangle fan housings, form the independent ventilation passage, be provided with arc deflector 3 in each air channel 5 along the motor body axial location, thereby form the vent passages of changes of section, this variable cross-section air channel 5 can change the flow direction of wind, form local pressure reduction, thereby formed the temperature difference band that rule distributes on the electric machine stand surface, strengthen heat conduction, improved heat-sinking capability.
As shown in Figure 4, because the structure in variable cross-section air channel 5, electric machine stand along the circumferential direction has different cooling air quantities, the air quantity of air channel θ 1, θ 2, θ 4, θ 5 is little and temperature is high, and the air quantity of air channel θ 3 is big but temperature is low, therefore on the electric machine stand circumferencial direction, formed temperature gradient, heat will be spread to air channel θ 3 by air channel θ 1, θ 2, θ 4, θ 5 along the electric machine stand surface, thereby accelerate the conduction of heat of electric machine stand, improve heat-sinking capability.
As shown in Figure 5, ability and blast that hearsay is passed heat have proportional relation, the traditional air chute structure along motor shaft to being the uiform section air channel, its each point wind pressure equates, wind in air channel L1, L2, the L3 flows through the parallel machine seating face, because blast PA=PB=PC, and air channel L1 than air channel L3 away from support, so the heat that the heat that air channel L1 takes away will be taken away less than air channel L3.After closed air-cooling motor of the present invention adopted arc deflector 3, the windage in variable cross-section air channel 5 slightly increased, and because blast PA＞PB＞PC has formed pressure reduction in 5 inside, variable cross-section air channel, had effectively improved the heat-sinking capability of air quantity.Simultaneously, air channel L1, L2, L3 are under the effect of arc deflector 3, moving line no longer with the electric machine stand parallel axes, but repeatedly collide with the electric machine stand surface, the heat that the existence of turbulent flow is taken away air channel L1, L2, L3 is basic identical, final result rises the temperature that goes out the wind comes from from motor variable cross-section air channel 5, and motor body 1 heat-sinking capability is improved.
For improving the heat sinking function of closed air-cooling motor, be set to described arc deflector 3 a plurality of, as shown in Figure 1, promptly along motor body 1 axial location a plurality of arc deflectors 3 are set in each air channel, can change wind direction better, make wind and electric machine stand surface carry out more times collision, thereby take away more heat, improve the heat-sinking capability of motor body 1.
For improving the heat sinking function of closed air-cooling motor, polygon fan housing 2 usefulness Heat Conduction Materials are made.In the present embodiment, polygon fan housing 2 adopts the good aluminium sheet of heat conductivility to make, and aluminium is the good conductor of heat, and with the aluminium sheet of homalographic, its heat-sinking capability is far above iron plate.Aluminum quadrangle fan housing described in the present embodiment is by closely contacting the conduction heat with electric machine stand, and with cooling air convection current conduction heat, motor body 1 internal heat is distributed in the air by aluminum square fan housing surface rapidly, this structure is equivalent to for motor body 1 has designed an Aluminium Radiator, and this aluminum quadrangle fan housing has also improved the heat-sinking capability of motor.For making things convenient for the processing of polygon fan housing 2, make things convenient for the installation and maintenance of motor body 1 and axial flow blower 4, polygon fan housing 2 can be designed to two halves, docks during installation.
Described blower fan support plate 6 is a cross bracket, centering circular hole 9 on it is positioned at the infall of cross bracket, four ends of cross bracket are fixed on the fixed head 7, and fixed head 7 is fixed by the end of bolt and polygon fan housing 2, pull down that bolt just can overhaul or ventilating fan more.This is simple and reasonable for structure, helps heat transferred when reducing the axial dimension of motor.
Claims (4)
1, a kind of closed air-cooling motor comprises motor body, axial flow blower, fan housing, it is characterized in that: described motor body (1) is for all-sealed, and casing is circular; Described fan housing is polygon fan housing (2), and motor body (1) is inscribed within polygon fan housing (2) lining, forms between polygon fan housing (2) and motor body (1) independently air channel (5); The lining, air channel (5) of described polygon fan housing (2) upper edge motor body (1) axial location is provided with arc deflector (3); Described axial flow blower (4) is the outer rotor shaft flow fan, stator core shaft one end of outer rotor shaft flow fan places on the centering circular hole (8) on motor body (1) end cap, and the other end places on the centering circular hole (9) on the blower fan support plate (6) of polygon fan housing (2) one ends.
2, closed air-cooling motor according to claim 1 is characterized in that: described polygon fan housing (2) is made dimidiation for aluminium sheet.
3, closed air-cooling motor according to claim 1 is characterized in that: described arc deflector (3) is for a plurality of.
4, closed air-cooling motor according to claim 1, it is characterized in that: described blower fan support plate (6) is a cross bracket, centering circular hole (9) on it is positioned at the infall of cross bracket, four ends of cross bracket are fixed on the fixed head (7), and fixed head (7) is fixed by the end of bolt and polygon fan housing (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910075028A CN101626178A (en) | 2009-07-28 | 2009-07-28 | Closed air-cooling motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910075028A CN101626178A (en) | 2009-07-28 | 2009-07-28 | Closed air-cooling motor |
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| CN101626178A true CN101626178A (en) | 2010-01-13 |
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| CN200910075028A Pending CN101626178A (en) | 2009-07-28 | 2009-07-28 | Closed air-cooling motor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101860120A (en) * | 2010-04-16 | 2010-10-13 | 江苏王牌直流电机制造有限公司 | External cooling type totally-enclosed direct current motor |
| CN101917102A (en) * | 2010-07-12 | 2010-12-15 | 无锡锡山安达防爆电气设备有限公司 | Three-phase asynchronous motor hollow shaft with air deflectors |
| CN102857026A (en) * | 2012-09-18 | 2013-01-02 | 太仓东元微电机有限公司 | Air cooling device of motor |
| CN107947401A (en) * | 2016-10-13 | 2018-04-20 | 上海大郡动力控制技术有限公司 | Cooling structure for new energy car ventilated machine stator winding |
| CN109435218A (en) * | 2018-11-13 | 2019-03-08 | 重庆瑞霆塑胶有限公司 | The automated production system of processing of CPP film |
-
2009
- 2009-07-28 CN CN200910075028A patent/CN101626178A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101860120A (en) * | 2010-04-16 | 2010-10-13 | 江苏王牌直流电机制造有限公司 | External cooling type totally-enclosed direct current motor |
| CN101917102A (en) * | 2010-07-12 | 2010-12-15 | 无锡锡山安达防爆电气设备有限公司 | Three-phase asynchronous motor hollow shaft with air deflectors |
| CN102857026A (en) * | 2012-09-18 | 2013-01-02 | 太仓东元微电机有限公司 | Air cooling device of motor |
| CN107947401A (en) * | 2016-10-13 | 2018-04-20 | 上海大郡动力控制技术有限公司 | Cooling structure for new energy car ventilated machine stator winding |
| CN109435218A (en) * | 2018-11-13 | 2019-03-08 | 重庆瑞霆塑胶有限公司 | The automated production system of processing of CPP film |
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Open date: 20100113 |