CN204559257U - Stator ventilation circuit formula magneto - Google Patents
Stator ventilation circuit formula magneto Download PDFInfo
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- CN204559257U CN204559257U CN201520268548.4U CN201520268548U CN204559257U CN 204559257 U CN204559257 U CN 204559257U CN 201520268548 U CN201520268548 U CN 201520268548U CN 204559257 U CN204559257 U CN 204559257U
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Abstract
The utility model discloses stator ventilation circuit formula magneto, it relates to machine field.Existing permanent magnet motor stator is unshakable in one's determination, stator winding temperature is too high in order to solve for the utility model, cooling effect difference and their unbalanced problems of Distribution of temperature rise vertically.Inside unshakable in one's determination for original solid stator is offered stairstepping Axial and radial air duct, and Axial and radial air duct is positioned at the centerline of stator tooth, and radial ducts and corresponding axial ventilation road communicate with each other.On same stator tooth, in axial direction arrange with radial direction respectively equably in radial ducts and axial ventilation road, tooth support is arranged on the end of stator core, and centrifugal fan is arranged on the end of brace rod, radiating fin is connected with end cap, and water pipe is embedded in end cap and base inner.The utility model structure is simple, facilitates feasible, overcomes stator region and to generate heat serious shortcoming, save the material of stator core, reduce cost, be conducive to the improvement of the inner each component cooling performance of magneto.
Description
Technical field
The utility model relates to stator ventilation circuit formula magneto, belongs to machine field.
Background technology
It is little that magneto has volume, lightweight, the simple and efficiency advantages of higher of structure, and it is in daily life, and national defense industry and the aspect such as agriculture are widely used.But along with the capacity of magneto increases gradually, magneto internal stator iron core, the loss of the component such as stator winding and permanent magnet will obviously increase, and causes the temperature of these components in magneto sharply to increase.In severe cases, too high temperature can cause stator winding insulation to puncture and the problems such as permanent magnet demagnetization, seriously has influence on the safe and stable operation of magneto.
Existing large-scale permanent magnet motor stator adopts solid construction, the loss of its stator core and stator winding is higher and ventilating and cooling effect is poor, result in the temperature drift of permanent magnet motor stator iron core and stator winding, the as easy as rolling off a log temperature rise limit exceeding stator winding insulation material, threatens the safe and stable operation of magneto.In addition, higher stator core and stator winding temperature limit magneto to more Large Copacity development, therefore, need adopt more effectively cooling technology to improve the heat-sinking capability in permanent magnet motor stator region, by the temperature limiting of main for magneto generating component allow temperature range in.
Summary of the invention
The purpose of this utility model is to provide a kind of novel stator ventilation circuit formula magneto, to solve because stator core and stator winding loss are high and ventilating and cooling weak effect and cause stator core and the too high problem of stator winding temperature, the cooling effect of stator core and stator winding effectively can be promoted.
Stator ventilation circuit formula magneto of the present utility model, it comprises stator core, stator stairstepping Axial and radial air duct, stator winding, tooth support, centrifugal fan, permanent magnet, brace rod, radiating fin, water pipe, end cap, support and sheath.The stator core of magneto is made up of stator tooth and stator yoke.Stator core inner step oblique crank Z radial ducts is made up of radial ducts and the axial ventilation road that is communicated with it.Stator winding is made up of Stator End Winding and linear stator section winding.Inside unshakable in one's determination for original solid stator is offered stairstepping Axial and radial air duct, and Axial and radial air duct is positioned at the centerline of stator tooth, and radial ducts and corresponding axial ventilation road communicate with each other.On same stator tooth, in axial direction arrange with radial direction respectively equably in radial ducts and axial ventilation road, tooth support is arranged on the end of stator core, and centrifugal fan is arranged on the end of brace rod, radiating fin is connected with end cap, and water pipe is embedded in end cap and base inner.The cross section in the radial ducts that stator core inside offers and corresponding axial ventilation road is circle, and the diameter D needs of this circular cross-section are determined according to the capacity of magneto and the stator facewidth, and diameter D span is 6 mm to 12 mm.
As preferably, the cross section in described radial ducts and corresponding axial ventilation road is square, and the length of side A of square sectional needs to determine according to the capacity of magneto and the stator facewidth, and length of side A span is 6 mm to 12 mm.
As preferably, the cross section in described radial ducts and corresponding axial ventilation road is square or for circular.The Axial and radial air duct of square sectional and the Axial and radial air duct of circular cross-section be alternately arrangement radially.The diameter D needs of the length of side A of the Axial and radial air duct of square sectional and the Axial and radial air duct of circular cross-section are determined according to the capacity of magneto and the stator facewidth, and length of side A and diameter D span are 6 mm to 12 mm.
As preferably, the quantity of described stator tooth position Axial and radial air duct doubles, and the quantity remaining on the Axial and radial air duct of stator yoke position is constant.More reasonably can distribute the flow of magneto internal cooling fluid like this, make cooling fluid take away the heat of the serious stator tooth of more heating and linear stator section winding.
Advantage of the present utility model: the Axial and radial air duct that the utility model utilizes permanent magnet motor stator inside unshakable in one's determination to offer, form " L " shape ventilation circuit formula cooling structure, on the basis not changing the original runnability of magneto, can guarantee that permanent magnet motor stator inside unshakable in one's determination has higher fluid velocity and surface of stator core has larger coefficient of heat transfer.Enhance the cooling effect of magneto internal stator iron core and stator winding, reduce the maximum temperature of stator core and stator winding, efficiently reduce the stator region temperature difference in axial direction.Meanwhile, the heat-sinking capability of cooling fluid to the higher Stator End Winding of temperature can also be improved.It is simple that this utility model has structure, is convenient to realize, the advantage of saving material and reducing costs.
accompanying drawing illustrates:
For ease of illustrating, the utility model is described in detail by following concrete enforcement and accompanying drawing.
Fig. 1 is axial cutaway view of the present utility model;
Fig. 2 is circumferencial direction partial sectional view of the present utility model.
In figure: 1-stator core; 2-stator stairstepping Axial and radial air duct; 3-stator winding; 4-tooth support; 5-centrifugal fan; 6-permanent magnet; 7-brace rod; 8-radiating fin; 9-water pipe; 10-end cap; 11-support; 12-sheath.
embodiment:
For making the purpose of this utility model, technical scheme and advantage clearly understand, below by the specific embodiment shown in accompanying drawing, the utility model is described.But should be appreciated that, these describe just exemplary, and do not really want to limit scope of the present utility model.In addition, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring concept of the present utility model.
As depicted in figs. 1 and 2, this embodiment by the following technical solutions: it comprises stator core 1, stator stairstepping Axial and radial air duct 2, stator winding 3, tooth support 4, centrifugal fan 5, permanent magnet 6, brace rod 7, radiating fin 8, water pipe 9, end cap 10, support 11 and sheath 12.The stator core 1 of magneto is made up of stator tooth 1-1 and stator yoke 1-2.Stator core 1 inner step oblique crank Z radial ducts 2 is made up of radial ducts 2-1 and the axial ventilation road 2-2 that is communicated with it.Stator winding 3 is made up of Stator End Winding 3-1 and linear stator section winding 3-2.1 inside unshakable in one's determination for original solid stator is offered stairstepping Axial and radial air duct 2, and Axial and radial air duct 2 is positioned at the centerline of stator tooth 1-1, and radial ducts 2-1 and corresponding axial ventilation road 2-2 communicates with each other.On same stator tooth 1-1, radial ducts 2-1 and axial ventilation road 2-2 in axial direction arranges with radial direction respectively equably, tooth support 4 is arranged on the end of stator core 1, centrifugal fan 5 is arranged on the end of brace rod 7, radiating fin 8 is connected with end cap 10, and water pipe 9 is embedded in end cap 10 and support 11 is inner.The cross section of the radial ducts 2-1 that stator core 1 inside offers and corresponding axial ventilation road 2-2 is circle, the diameter D needs of this circular cross-section are determined according to the capacity of magneto and the stator facewidth, diameter D span is 6 mm to 12 mm, and the present embodiment is taken as 8 mm.
Further, the cross section of described radial ducts 2-1 and corresponding axial ventilation road 2-2 is square, the length of side A needs of square sectional are determined according to the capacity of magneto and the stator facewidth, and length of side A span is 6 mm to 12 mm, and the present embodiment is taken as 8 mm.
Further, the cross section of described radial ducts 2-1 and corresponding axial ventilation road 2-2 is square or is circle.The Axial and radial air duct of square sectional and the Axial and radial air duct of circular cross-section be alternately arrangement radially.The diameter D needs of the length of side A of the Axial and radial air duct of square sectional and the Axial and radial air duct of circular cross-section are determined according to the capacity of magneto and the stator facewidth, length of side A and diameter D span are 6 mm to 12 mm, and it be 8 mm and diameter D is 8 mm that the present embodiment gets length of side A.
Further, the quantity of described stator tooth 1-1 position Axial and radial air duct doubles, and the quantity remaining on the Axial and radial air duct 2 of stator yoke 1-2 position is constant.More reasonably can distribute the flow of magneto internal cooling fluid like this, make cooling fluid take away the heat of more heating serious stator tooth 1-1 and linear stator section winding 3-2.
Concrete cooling fluid, by original stator core 1 inner surface ambient dynamic, is changed into stator core 1 inner surface ambient dynamic and flows from stator core 1 inner radial air duct 2-1 and axial ventilation road 2-2.Cooling fluid in stator axis radial ducts 2 take part in the circulation of the inner closed cooling fluid of magneto, effectively improve the cooling effect of cooling fluid to stator core 1 and linear stator section winding 3-2, and the cooling fluid flowed out from stator shaft orientation air duct 2-2 can also chilling temperature is too high effectively Stator End Winding 3-1, makes the temperature of Stator End Winding 3-1 reduce significantly.This stator ventilation circuit formula structure can reduce the temperature of stator core and stator winding effectively, saves the material of stator core 1, reduces cost, for the ventilation cooling structure optimizing magneto provides foundation.
More than show and describe general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. stator ventilation circuit formula magneto, is characterized in that: it comprises stator core (1), stator stairstepping Axial and radial air duct (2), stator winding (3), tooth support (4), centrifugal fan (5), permanent magnet (6), brace rod (7), radiating fin (8), water pipe (9), end cap (10), support (11) and sheath (12); The stator core (1) of magneto is made up of stator tooth (1-1) and stator yoke (1-2); Stator core (1) inner step oblique crank Z radial ducts (2) is made up of radial ducts (2-1) and the axial ventilation road (2-2) that is communicated with it; Stator winding (3) is made up of Stator End Winding (3-1) and linear stator section winding (3-2); Original solid stator iron core (1) inside is offered stairstepping Axial and radial air duct (2), and Axial and radial air duct (2) is positioned at the centerline of stator tooth (1-1), and radial ducts (2-1) and corresponding axial ventilation road (2-2) communicate with each other; On same stator tooth (1-1), radial ducts (2-1) and axial ventilation road (2-2) in axial direction arrange with radial direction respectively equably, tooth support (4) is arranged on the end of stator core (1), centrifugal fan (5) is arranged on the end of brace rod (7), radiating fin (8) is connected with end cap (10), and water pipe (9) is embedded in end cap (10) and support (11) is inner; The radial ducts (2-1) that stator core (1) inside offers and the cross section in corresponding axial ventilation road (2-2) are circle, the diameter D needs of this circular cross-section are determined according to the capacity of magneto and the stator facewidth, and diameter D span is 6 mm to 12 mm.
2. stator ventilation circuit formula magneto according to claim 1, it is characterized in that: described radial ducts (2-1) and the cross section in corresponding axial ventilation road (2-2) are square, the length of side A needs of square sectional are determined according to the capacity of magneto and the stator facewidth, and length of side A span is 6 mm to 12 mm.
3. stator ventilation circuit formula magneto according to claim 1, it is characterized in that: described radial ducts (2-1) and the cross section in corresponding axial ventilation road (2-2) are for square or for circular, and the Axial and radial air duct of square sectional and the Axial and radial air duct of circular cross-section be alternately arrangement radially; The diameter D needs of the length of side A of the Axial and radial air duct of square sectional and the Axial and radial air duct of circular cross-section are determined according to the capacity of magneto and the stator facewidth, and length of side A and diameter D span are 6 mm to 12 mm.
4. stator ventilation circuit formula magneto according to claim 1, it is characterized in that: the quantity of described stator tooth (1-1) position Axial and radial air duct doubles, and the quantity remaining on the Axial and radial air duct (2) of stator yoke (1-2) position is constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520268548.4U CN204559257U (en) | 2015-04-29 | 2015-04-29 | Stator ventilation circuit formula magneto |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520268548.4U CN204559257U (en) | 2015-04-29 | 2015-04-29 | Stator ventilation circuit formula magneto |
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| CN204559257U true CN204559257U (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520268548.4U Withdrawn - After Issue CN204559257U (en) | 2015-04-29 | 2015-04-29 | Stator ventilation circuit formula magneto |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104821669A (en) * | 2015-04-29 | 2015-08-05 | 哈尔滨理工大学 | Stator ventilation loop type permanent magnet motor |
| CN106899128A (en) * | 2017-03-28 | 2017-06-27 | 北京交通大学 | The motor radiating structure that a kind of invaginating is combined with inner rib type |
| CN110474484A (en) * | 2019-09-24 | 2019-11-19 | 上海电气集团上海电机厂有限公司 | A kind of the cooling device layout and its wind path structure of magneto |
-
2015
- 2015-04-29 CN CN201520268548.4U patent/CN204559257U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104821669A (en) * | 2015-04-29 | 2015-08-05 | 哈尔滨理工大学 | Stator ventilation loop type permanent magnet motor |
| CN104821669B (en) * | 2015-04-29 | 2017-12-08 | 哈尔滨理工大学 | Stator ventilation circuit formula magneto |
| CN106899128A (en) * | 2017-03-28 | 2017-06-27 | 北京交通大学 | The motor radiating structure that a kind of invaginating is combined with inner rib type |
| CN106899128B (en) * | 2017-03-28 | 2019-08-13 | 北京交通大学 | A kind of motor radiating structure that invaginating is combined with inner rib type |
| CN110474484A (en) * | 2019-09-24 | 2019-11-19 | 上海电气集团上海电机厂有限公司 | A kind of the cooling device layout and its wind path structure of magneto |
| CN110474484B (en) * | 2019-09-24 | 2024-05-14 | 上海电气集团上海电机厂有限公司 | Cooling device layout of permanent magnet motor and wind path structure thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150812 Effective date of abandoning: 20171208 |
|
| AV01 | Patent right actively abandoned |