CN204559273U - A kind of non salient pole machine end magnetic shielding device that can improve cooling effect - Google Patents
A kind of non salient pole machine end magnetic shielding device that can improve cooling effect Download PDFInfo
- Publication number
- CN204559273U CN204559273U CN201520268684.3U CN201520268684U CN204559273U CN 204559273 U CN204559273 U CN 204559273U CN 201520268684 U CN201520268684 U CN 201520268684U CN 204559273 U CN204559273 U CN 204559273U
- Authority
- CN
- China
- Prior art keywords
- magnetic screen
- block
- stepped
- stepped magnetic
- salient pole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a kind of non salient pole machine end magnetic shielding device that can improve cooling effect, it relates to machine field.The utility model to generate heat serious problem to solve existing non salient pole machine end magnetic screen.Excitation trim ring is arranged on end finger upper end, magnetic screen is arranged on excitation trim ring upper end, pressing plate is arranged on magnetic screen upper end, fixing muscle and positioning bar are used for fixing end finger, excitation trim ring, magnetic screen and pressing plate, positioning bar is arranged on the outer radius of end finger, leave circumferential ventilation ducts between every stepped magnetic screen of block in a circumferential direction, the stepped magnetic screen inside of every block offers radial air openings, leaves radial ducts in the axial direction between every stepped magnetic screen of block.Wind-guiding channel-section steel is arranged in the radial ducts between the stepped magnetic screen of every block, and is fixedly clamped by the stepped magnetic screen in both sides.The utility model structure is simple, facilitates feasible, saves material, reduce cost, is conducive to strengthening the cooling effect in non salient pole machine end regions.
Description
Technical field
The utility model relates to a kind of non salient pole machine end magnetic shielding device that can improve cooling effect, belongs to machine field.
Background technology
Along with the capacity of large-scale non salient pole machine constantly increases, non salient pole machine end regions magnetic is close will be increased with eddy current loss that is end construction part thereupon, this will cause the temperature rise of end construction part obviously to increase, cause end regions local overheating, especially when non salient pole machine leading phase operation, in end regions, magnetic temperature rise that is close and each structural member sharply increases, and seriously has influence on the safety and reliability that non salient pole machine runs.
The magnetic screen of existing non salient pole machine end member is the monoblock circumference shielding construction be made up of stage shape metal plate, the eddy current loss of its end member magnetic screen is high, ventilating and cooling weak effect, the heating that result in end member magnetic screen is comparatively serious, limit large-scale non salient pole machine to more jumbo development, need to adopt reasonably ventilation cooling structure effectively to reduce the temperature of end member magnetic screen.
Summary of the invention
The purpose of this utility model is to provide a kind of non salient pole machine end magnetic shielding device that can improve cooling effect, to solve the problem that non salient pole machine causes magnetic screen temperature too high due to end magnetic screen loss height and ventilating and cooling weak effect, the cooling effect of end magnetic screen effectively can be improved.
A kind of non salient pole machine end magnetic shielding device that can improve cooling effect of the present utility model, it comprises end finger, excitation trim ring, stepped magnetic screen, pressing plate, fixing muscle, positioning bar, circumferential ventilation ducts, radial air openings, radial ducts and wind-guiding channel-section steel.Excitation trim ring is arranged on end finger upper end, stepped magnetic screen is arranged on excitation trim ring upper end, pressing plate is arranged on stepped magnetic screen upper end, fixing muscle and positioning bar are used for fixing end finger, excitation trim ring, stepped magnetic screen and pressing plate, positioning bar is arranged on the outer radius of end finger, leave circumferential ventilation ducts between every stepped magnetic screen of block in a circumferential direction, the stepped magnetic screen inside of every block offers radial air openings, leaves radial ducts in the axial direction between every stepped magnetic screen of block.Wind-guiding channel-section steel is arranged in the radial ducts between the stepped magnetic screen of every block, and is fixedly clamped by the stepped magnetic screen in both sides.
Described device comprises the stepped magnetic screen of a block of along the circumferential direction installing, and the span of a is 8 pieces to 16 pieces.The width of the circumferential ventilation ducts in a circumferential direction between every stepped magnetic screen of block is 6 mm to 15 mm.The inside of the stepped magnetic screen of every block offers radial air openings, and radial air openings is positioned in the ladder section of the stepped magnetic screen of every block, and through the stepped magnetic screen of every block.In each ladder section, the quantity of radial air openings is b, and the span of b is 2 to 6.The width of the radial ducts in the axial direction between every stepped magnetic screen of block is 6 mm to 12 mm.Between stepped magnetic screen, the total number of radial ducts is 3 to 6, needs to determine according to the capacity of non salient pole machine.Between the stepped magnetic screen of every block, the quantity of wind-guiding channel-section steel is 2 to 4.The material of described wind-guiding channel-section steel is any one of steel, alloy or aluminium.Wind-guiding channel-section steel serves the effect reducing radial ducts inner fluid eddy current.
As preferably, the inner surface of described stepped magnetic screen is along the circumferential direction provided with zigzag radiating fin, increases the contact area of cooling fluid and stepped magnetic screen.
As preferably, the inner surface of described stepped magnetic screen along the circumferential direction offers groove equably, increases the contact area of cooling fluid and stepped magnetic screen.
Advantage of the present utility model: offer circumferential ventilation ducts, radial air openings and the radial ducts with wind-guiding channel-section steel in the solid step shape magnet shielding structure of end, on the basis not changing the original runnability of non salient pole machine, increase the contact area of the stepped magnetic screen of cooling fluid and end, accelerate the speed of cooling fluid around the stepped magnetic screen in end, improve cooling fluid in non salient pole machine and, to the cooling effect of the stepped magnetic screen in end, the temperature of the stepped magnetic screen in non salient pole machine end can be significantly reduced.This utility model is easy for installation, and structure is simple, has saved the material of magnetic screen and has reduced cost, can provide foundation for the aeration structure design of non salient pole machine.
accompanying drawing illustrates:
For ease of illustrating, the utility model is described in detail by following concrete enforcement and accompanying drawing.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that M-M of the present utility model is to cutaway view;
Fig. 3 is that N-N of the present utility model is to cutaway view;
Fig. 4 is the structural representation of stepped magnetic screen inside in the utility model.
In figure: 1-end finger; 2-excitation trim ring; The stepped magnetic screen of 3-; 4-pressing plate; 5-fixes muscle; 6-positioning bar; 7-circumference ventilation ducts; 8-radial air openings; 9-radial ducts; 10-wind-guiding channel-section steel.
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 shown in Figures 1 to 4, this embodiment by the following technical solutions: it comprises end finger 1, excitation trim ring 2, stepped magnetic screen 3, pressing plate 4, fixing muscle 5, positioning bar 6, circumferential ventilation ducts 7, radial air openings 8, radial ducts 9 and wind-guiding channel-section steel 10.Excitation trim ring 2 is arranged on end finger 1 upper end, stepped magnetic screen 3 is arranged on excitation trim ring 2 upper end, pressing plate 4 is arranged on stepped magnetic screen 3 upper end, fixing muscle 5 and positioning bar 6 are used for fixing end finger 1, excitation trim ring 2, stepped magnetic screen 3 and pressing plate 4, positioning bar 6 is arranged on the outer radius of end finger 1, circumferential ventilation ducts 7 is left in a circumferential direction between every stepped magnetic screen of block 3, every block stepped magnetic screen 3 inside offers radial air openings 8, leaves radial ducts 9 in the axial direction between every stepped magnetic screen 3 of block.Wind-guiding channel-section steel 10 is arranged in the radial ducts 9 between the stepped magnetic screen 3 of every block, and is fixedly clamped by the stepped magnetic screen 3 in both sides.
The span that described device comprises the stepped magnetic screen 3, a of a block along the circumferential direction installed is 8 pieces to 16 pieces, and the present embodiment is taken as 12 pieces.The width of the circumferential ventilation ducts 7 in a circumferential direction between every stepped magnetic screen of block 3 is 6 mm to 15 mm, and the present embodiment is taken as 10 mm.The inside of the stepped magnetic screen 3 of every block offers radial air openings 8, and radial air openings 8 is positioned in the ladder section of the stepped magnetic screen 3 of every block, and through the stepped magnetic screen 3 of every block.In each ladder section, the quantity of radial air openings 8 is b, and the span of b is 2 to 6, and the present embodiment is taken as 2.The width of the radial ducts 9 in the axial direction between every stepped magnetic screen 3 of block is 6 mm to 12 mm, and the present embodiment is taken as 8 mm.Between stepped magnetic screen 3, the total number of radial ducts 9 is 3 to 6, needs to determine according to the capacity of non salient pole machine, and the present embodiment is taken as 4.Between the stepped magnetic screen 3 of every block, the quantity of wind-guiding channel-section steel 10 is 2 to 4, and the present embodiment is taken as 2.The material of described wind-guiding channel-section steel 10 is any one of steel, alloy or aluminium, and the present embodiment selects Steel material.Wind-guiding channel-section steel 10 serves the effect reducing radial ducts 9 inner fluid eddy current.
Further, the inner surface of described stepped magnetic screen 3 is along the circumferential direction provided with zigzag radiating fin, increases the contact area of cooling fluid and stepped magnetic screen 3.
Further, the inner surface of described stepped magnetic screen 3 along the circumferential direction offers groove equably, increases the contact area of cooling fluid and stepped magnetic screen 3.
Concrete cooling fluid is by the original only surperficial ambient dynamic of stepped magnetic screen 3 in end, change into the surperficial ambient dynamic of stepped magnetic screen 3 and the circumferential ventilation ducts 7 from stepped magnetic screen 3 inside, radial air openings 8 and with in the radial ducts 9 of wind-guiding channel-section steel 10 flow, increase the contact area of cooling fluid and stepped magnetic screen 3, accelerate the speed of cooling fluid around stepped magnetic screen, effectively improve the cooling effect of cooling fluid to the stepped magnetic screen 3 in end, significantly reduce the temperature of stepped magnetic screen 3, ensure that the safe and stable operation of non salient pole machine.
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 (3)
1. one kind can be improved the non salient pole machine end magnetic shielding device of cooling effect, it is characterized in that: it comprises end finger (1), excitation trim ring (2), stepped magnetic screen (3), pressing plate (4), fixing muscle (5), positioning bar (6), circumference ventilation ducts (7), radial air openings (8), radial ducts (9) and wind-guiding channel-section steel (10), excitation trim ring (2) is arranged on end finger (1) upper end, stepped magnetic screen (3) is arranged on excitation trim ring (2) upper end, pressing plate (4) is arranged on stepped magnetic screen (3) upper end, fixing muscle (5) and positioning bar (6) are used for fixing end finger (1), excitation trim ring (2), stepped magnetic screen (3) and pressing plate (4), positioning bar (6) is arranged on the outer radius of end finger (1), circumferential ventilation ducts (7) is left in a circumferential direction between every stepped magnetic screen of block (3), the stepped magnetic screen of every block (3) inside offers radial air openings (8), radial ducts (9) is left in the axial direction between every stepped magnetic screen of block (3), wind-guiding channel-section steel (10) is arranged in the radial ducts (9) between the stepped magnetic screen of every block (3), and be fixedly clamped by the stepped magnetic screen in both sides (3), described device comprises the stepped magnetic screen of a block (3) of along the circumferential direction installing, and the span of a is 8 pieces to 16 pieces, the width of the circumferential ventilation ducts (7) in a circumferential direction between every stepped magnetic screen of block (3) is 6 mm to 15 mm, the inside of the stepped magnetic screen of every block (3) offers radial air openings (8), and radial air openings (8) is positioned in the ladder section of the stepped magnetic screen of every block (3), and through the stepped magnetic screen of every block (3), in each ladder section, the quantity of radial air openings (8) is b, and the span of b is 2 to 6, the width of the radial ducts (9) in the axial direction between every stepped magnetic screen of block (3) is 6 mm to 12 mm, between stepped magnetic screen (3), the total number of radial ducts (9) is 3 to 6, needs to determine according to the capacity of non salient pole machine, between the stepped magnetic screen of every block (3), the quantity of wind-guiding channel-section steel is 2 to 4, the material of described wind-guiding channel-section steel (10) is any one of steel, alloy or aluminium.
2. a kind of non salient pole machine end magnetic shielding device that can improve cooling effect according to claim 1, is characterized in that: the inner surface of described stepped magnetic screen (3) is along the circumferential direction provided with zigzag and falls apart wing.
3. a kind of non salient pole machine end magnetic shielding device that can improve cooling effect according to claim 1, is characterized in that: the inner surface of described stepped magnetic screen (3) along the circumferential direction offers groove equably.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520268684.3U CN204559273U (en) | 2015-04-29 | 2015-04-29 | A kind of non salient pole machine end magnetic shielding device that can improve cooling effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520268684.3U CN204559273U (en) | 2015-04-29 | 2015-04-29 | A kind of non salient pole machine end magnetic shielding device that can improve cooling effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204559273U true CN204559273U (en) | 2015-08-12 |
Family
ID=53834344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520268684.3U Withdrawn - After Issue CN204559273U (en) | 2015-04-29 | 2015-04-29 | A kind of non salient pole machine end magnetic shielding device that can improve cooling effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204559273U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104821675A (en) * | 2015-04-29 | 2015-08-05 | 哈尔滨理工大学 | Non-salient pole motor end part magnetic shielding device capable of enhancing cooling effect |
| CN108649721A (en) * | 2018-06-13 | 2018-10-12 | 哈尔滨理工大学 | The non salient pole generator of three-dimensional end ventilation cooling system is shielded with mixing |
-
2015
- 2015-04-29 CN CN201520268684.3U patent/CN204559273U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104821675A (en) * | 2015-04-29 | 2015-08-05 | 哈尔滨理工大学 | Non-salient pole motor end part magnetic shielding device capable of enhancing cooling effect |
| CN108649721A (en) * | 2018-06-13 | 2018-10-12 | 哈尔滨理工大学 | The non salient pole generator of three-dimensional end ventilation cooling system is shielded with mixing |
| CN108649721B (en) * | 2018-06-13 | 2019-06-25 | 哈尔滨理工大学 | The non salient pole generator of three-dimensional end ventilation cooling system is shielded with mixing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105680602B (en) | A kind of motor convenient for fluid flowing | |
| US20160305454A1 (en) | Air outlet protection structure, outdoor unit of air conditioner and method for designing air outlet protection structure | |
| CN104821675A (en) | Non-salient pole motor end part magnetic shielding device capable of enhancing cooling effect | |
| CN204559273U (en) | A kind of non salient pole machine end magnetic shielding device that can improve cooling effect | |
| CN202997726U (en) | Stator fanning strip ventilation duct plate and stator core ventilation duct plate | |
| CN204559258U (en) | For improving the turbo generator of stator end core cooling effect | |
| CN105939070A (en) | Air extraction type turbine generator stator capable of promoting heat dissipation | |
| CN103746481B (en) | A kind of stator core ventilation ducts structure | |
| CN202856493U (en) | Hydro-generator rotor pole air deflector | |
| CN205792028U (en) | A kind of cooperating type Axial and radial stator end ventilation cooling system of non salient pole generator | |
| CN205791837U (en) | A kind of air-draft-type stator of steam turbine generator being beneficial to heat radiation | |
| CN204559259U (en) | There is a spoonful large turbo-type generator for shape structural formula stator ventilation cooling system | |
| CN203456236U (en) | Inductive device | |
| CN205829341U (en) | A kind of have the motor being prone to heat radiation rotor punching | |
| CN203607988U (en) | Novel motor seat with high efficiency heat radiation structure | |
| CN204559257U (en) | Stator ventilation circuit formula magneto | |
| CN102146934A (en) | Fan wheel | |
| CN205791824U (en) | The stator vent segment of front wind-guide | |
| CN204463988U (en) | Lightweight multiple duct filter reactor | |
| CN110164667B (en) | Dry-type transformer convenient to heat dissipation | |
| CN107017715A (en) | Cage rotor and motor | |
| CN203747524U (en) | Motor stator radial ventilation device | |
| CN202634188U (en) | Medium-sized generator low noise closed cooling system | |
| CN206259771U (en) | A kind of magnetic suspension motor stator end coiling insulation processing structure | |
| CN204721127U (en) | Rotor surface fan blade type non salient pole generator ventilation cooling structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150812 Effective date of abandoning: 20180105 |