CN102403839A - Ventilation structure for slip ring cover of wound-rotor motor - Google Patents
Ventilation structure for slip ring cover of wound-rotor motor Download PDFInfo
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- CN102403839A CN102403839A CN2011103608369A CN201110360836A CN102403839A CN 102403839 A CN102403839 A CN 102403839A CN 2011103608369 A CN2011103608369 A CN 2011103608369A CN 201110360836 A CN201110360836 A CN 201110360836A CN 102403839 A CN102403839 A CN 102403839A
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- slip ring
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Abstract
The invention discloses a ventilation structure for a slip ring cover of a wound-rotor motor. A fan blade is arranged at the inner side of a front side air inlet of a cover shell and is driven by a motor shaft; an outer air guide plate is arranged at the upper part of the cover shell, a plurality of air channels are constructed at the lower part of the outer air guide plate through bent inner deflection plates and straight inner deflection plates, and outlets of the air channels are positioned at the upper parts of each group of slip rings and windings respectively; and an air outlet is arranged at the bottom of the cover shell. In the ventilation structure for the slip ring cover of the wound-rotor motor, as cooling air is guided to the upper part of the slip ring end cover and then directly blows to the slip rings through fluid design under the conditions of without increasing the manufacture cost and guaranteeing the safety and reliability of the motor, the cooling effect of the slip rings can be greatly improved, accumulation of carbon powders brought about by axial ventilation can be reduced to the greatest extent, and the reliability of a slip ring brush holder system is effectively improved, so that factories and enterprises with better environmental conditions can save cost when selecting motors with the protection grade IP23, and simultaneously the hidden troubles during use can be eliminated.
Description
Technical field
The present invention relates to technical field of motors, especially the slip ring cover aeration structure of coiling electric motor.
Background technology
Coiling electric motor slip ring problem is the chronic disease of a headache of puzzlement electromechanics trade and industrial and mining enterprises, and its main cause is not ventilated not smooth from slip ring, and toner discharge is ineffective, local carbon distribution short circuit, blows out, and has directly influenced the operation of whole production streamline.Slip ring is broadly divided into two types according to its degree of protection: the first kind is that the environment of plant is more abominable; The many environment of dust such as powder, coal check and correction; This type of environment is selected the higher slip ring aeration structure of degree of protection usually for use, and the independently slip ring cooling air duct that has been hedged off from the outer world is with the slip ring fault of avoiding the environment foreign material to bring; This type of slip ring cools off often complex structure, and maintenance and manufacturing cost are higher; Second type is that the environment of plant is better, and dusts such as coal, powder are few, and this type of environment is selected the lower slip ring aeration structure of degree of protection usually for use, and the slip ring chamber and the external world directly carry out heat exchange, and this type of slip ring is simple in structure, and maintenance and manufacturing cost are lower.And during this type of design of electrical motor, tend to because motor producer according to the axial ventilation thinking, has some setbacks and cause carbon dust to be discharged, carbon dust stops up, and brings the slip ring fault thus.
It is the cooling effect that improves slip ring that producer is also arranged at present, adopts the way that adds cooling blower on the slip ring cover, through cooling blower to the slip ring air blast; Slip ring cover is made octahedron, and two cooling blowers are contained on octahedral two sides, and the wind that blower fan produces directly blows to slip ring can improve the slip ring cooling; This kind forces the structure of cooling, and not only cost is higher; In case and the power supply source of blower fan breaks down, and then must influence the cooling of slip ring, thereby influence the operation of whole motor.
Summary of the invention
The applicant is the deficiency that overcomes above-mentioned slip ring cooling system; Take into full account environment operating mode enterprise machine operation characteristic preferably, work out a kind of slip ring cover aeration structure of coiling electric motor rational in infrastructure, the little wind speed of windage is high; Good cooling results, and be difficult for the accumulation carbon dust.
The technical scheme that the present invention adopted is following:
A kind of slip ring cover aeration structure of coiling electric motor; Be provided with fan blade in air inlet inboard, the front side of case; Fan blade drives through motor shaft; Wind deflector outside case top is provided with, some wind paths are constructed through baffler in bending and straight interior baffler in the wind deflector bottom outside, and its wind path outlet lays respectively at respectively organizes slip ring and winding top; Be provided with air outlet in the case bottom.
It is further characterized in that: spray anti-arc magnetic painting layer at said case surface of internal cavity.
Beneficial effect of the present invention is following:
The present invention is through technological innovation, and technical process is simple, safety, and action effect is obvious; In the situation that does not increase manufacturing cost; And guarantee under the condition of motor safety property and reliability, through fluid design cooling air is caused that slip ring end shield top directly brushes to slip ring again, can improve the slip ring cooling effect greatly; Reduce the carbon dust accumulation that axial ventilation brings to greatest extent; Effectively improve slip ring brush holder system reliability, make environmental condition preferably factory and enterprise when selecting degree of protection to be the motor of IP23, provide cost savings, also got rid of use hidden danger simultaneously.
Description of drawings
Fig. 1 looks sketch map for master of the present invention.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present invention is described.
As shown in Figure 1; The present invention is provided with fan blade 2 in air inlet inboard, the front side of case 6; Fan blade 2 drives through motor shaft 8; Wind deflector 5 outside case 6 tops are provided with, some wind paths are constructed through baffler in bending 3 and straight interior baffler 4 in wind deflector 5 bottoms outside, and its wind path outlet lays respectively at respectively organizes slip ring 9 and winding top; And baffler 3 has less collection air port with the tip designs of straight interior baffler 4 in the bending.Be provided with air outlet in case 6 bottoms.Air inlet is equipped with air intake web plate 1, and air outlet is installed air-out web plate 7 and outlet housing.At the anti-arc magnetic of case 6 surface of internal cavity spraying one deck painting layer.
During real work, cooling air gets into case 6 from the air intake web plate of air inlet 1, is divided into two-way by baffler 3 and 4 in streamlined in the slip ring cover through fan blade 2, wind deflector 5 and case 6 sealings outside and blows to the slip ring surface from top to bottom, is discharged by air-out web plate 7 again.Fan blade 2 is contained in case 6 front portions, with motor shaft 8 with changeing, and interior baffler 3 becomes a less collection air port with 4 tip designs, the distinguished and admirable slip ring surface that directly blows to, thereby to guarantee providing enough blast to take away the carbon dust of carbon brush wearing and tearing generation.The fairing design can effectively reduce windage, improves wind speed.And at the anti-arc magnetic paint of case 6 surface of internal cavity spraying one deck, make surface of internal cavity very smooth, effectively prevented carbon dust adhering at inner chamber.Final toner can directly be discharged from the air-out web plate 7 of case 6 bottoms, stops up for preventing web plate, only needs periodic cleaning air-out web plate 7 to get final product; Outlet housing is a hemispherical dome formula structure, helps the smooth discharge of wind-guiding and carbon dust.
The present invention can replace band fully and force the wind path structure of blower fan to the slip ring air blast; A cover low-tension supply and the relevant control system of forcing the supporting increase of cooling blower because of increase have been eliminated; And the existence of cooling blower has increased extra unreliable factor, and the present invention provides power through the fan blade with motor coaxle, has the identical life-span with motor; Basically independent inefficacy can not take place, thereby improved the reliability of complete machine.
More than describing is to explanation of the present invention; Not that institute of the present invention restricted portion is referring to claim, under the situation of spirit of the present invention to the qualification of invention; The present invention can do any type of modification; For example fan is placed tail end, between bearing and slip ring, form similar cooling air duct structure.
Claims (2)
1. the slip ring cover aeration structure of a coiling electric motor; It is characterized in that: the air inlet inboard, front side at case (6) is provided with fan blade (2); Fan blade (2) drives through motor shaft (8); Wind deflector (5) outside case (6) top is provided with, some wind paths are constructed through baffler (3) in the bending and straight interior baffler (4) in wind deflector (5) bottom outside, and its wind path outlet lays respectively at respectively organizes slip ring (9) and winding top; Be provided with air outlet in case (6) bottom.
2. according to the slip ring cover aeration structure of the described coiling electric motor of claim 1, it is characterized in that: spray anti-arc magnetic painting layer at said case (6) surface of internal cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103608369A CN102403839A (en) | 2011-11-15 | 2011-11-15 | Ventilation structure for slip ring cover of wound-rotor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103608369A CN102403839A (en) | 2011-11-15 | 2011-11-15 | Ventilation structure for slip ring cover of wound-rotor motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102403839A true CN102403839A (en) | 2012-04-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103608369A Pending CN102403839A (en) | 2011-11-15 | 2011-11-15 | Ventilation structure for slip ring cover of wound-rotor motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102403839A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723814A (en) * | 2012-06-26 | 2012-10-10 | 东方电气（乐山）新能源设备有限公司 | Novel cooling fan structure of slip ring chamber |
| CN103516139A (en) * | 2013-01-08 | 2014-01-15 | 李贤明 | Sliding ring for motor |
| CN104917340A (en) * | 2015-06-01 | 2015-09-16 | 中达电机股份有限公司 | Coiling motor slip ring cover ventilation structure |
| CN110429764A (en) * | 2019-07-23 | 2019-11-08 | 远景能源（江苏）有限公司 | A kind of slip ring cooling system |
| CN111478492A (en) * | 2020-04-23 | 2020-07-31 | 攀钢集团重庆钛业有限公司 | Method for prolonging service life of motor slip ring |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101980427A (en) * | 2010-10-29 | 2011-02-23 | 无锡哈电电机有限公司 | Slip ring ventilation cooling system structure |
| CN202364059U (en) * | 2011-11-15 | 2012-08-01 | 中电电机股份有限公司 | Ventilation structure of slip ring cover of winding motor |
-
2011
- 2011-11-15 CN CN2011103608369A patent/CN102403839A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101980427A (en) * | 2010-10-29 | 2011-02-23 | 无锡哈电电机有限公司 | Slip ring ventilation cooling system structure |
| CN202364059U (en) * | 2011-11-15 | 2012-08-01 | 中电电机股份有限公司 | Ventilation structure of slip ring cover of winding motor |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723814A (en) * | 2012-06-26 | 2012-10-10 | 东方电气（乐山）新能源设备有限公司 | Novel cooling fan structure of slip ring chamber |
| CN103516139A (en) * | 2013-01-08 | 2014-01-15 | 李贤明 | Sliding ring for motor |
| CN104917340A (en) * | 2015-06-01 | 2015-09-16 | 中达电机股份有限公司 | Coiling motor slip ring cover ventilation structure |
| CN110429764A (en) * | 2019-07-23 | 2019-11-08 | 远景能源（江苏）有限公司 | A kind of slip ring cooling system |
| CN111478492A (en) * | 2020-04-23 | 2020-07-31 | 攀钢集团重庆钛业有限公司 | Method for prolonging service life of motor slip ring |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120404 |