CN205791824U - The stator vent segment of front wind-guide - Google Patents
The stator vent segment of front wind-guide Download PDFInfo
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- CN205791824U CN205791824U CN201620474545.0U CN201620474545U CN205791824U CN 205791824 U CN205791824 U CN 205791824U CN 201620474545 U CN201620474545 U CN 201620474545U CN 205791824 U CN205791824 U CN 205791824U
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- stator
- steel channel
- ventilation steel
- vent segment
- wind
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- Motor Or Generator Cooling System (AREA)
Abstract
The utility model discloses the stator vent segment of a kind of front wind-guide, including ventilation steel channel, stator punching, stator bar and stator punching teeth portion, two stator punchings and ventilation steel channel are fixed together formation vent segment, the internal diameter of described vent segment is less than the internal diameter of stator core, the front end of ventilation steel channel is ventilation steel channel wind-guiding section, and ventilation steel channel wind-guiding section bending direction is contrary with rotor direction of rotation.The stator vent segment of this utility model front wind-guide, by reducing vent segment internal diameter, ventilation steel channel guide section is made to protrude iron core, go deep into air gap, in advance the swirling eddy in air gap can be imported stator wind path, strengthen the guide effect of ventilation steel channel, thus reduce draft loss and the pressure loss further.
Description
Technical field
This utility model relates to the stator vent segment of a kind of front wind-guide, belongs to motor ventilation cooling technology field.
Background technology
Along with the progress of design of electrical motor Yu manufacturing technology, the capacity of motor improves constantly, and power density is continuously increased, and it damages
Consumption, heating also become increasingly severe with ventilating problem.In order to ensure reliability service and the service life of large-size machine, having must
Ventilation effect to be improved and reduction loss.
The loss of motor generally comprise rotor copper loss i.e. resistance loss, core loss, bearing loss, draft loss and
Other losses, wherein draft loss occupies the biggest proportion in motor total losses.Motor is in running, and stator winding produces
Copper loss and generate heat, stator core generates heat due to iron loss, draft loss be mainly by flowing through generator unit stator air duct structure
Cooling gas the heat that stator winding and stator core produce is taken away, thus ensure that stator temperature rise is within prescribed limit.
Cooling air can be rotated by rotor before arriving stator, thus forms the gas of circumferential movement in air gap
Stream.And stator air duct is generally radially arranged, cooling air enters stator from air gap can be because the unexpected of flow resistance becomes big and stream
To suddenly change produce bigger draft loss and the pressure loss.
At present, in order to improve this phenomenon, ventilation steel channel end is bent towards flow rotation direction, formed to guide and make
With, but due to vent and diameter of stator bore flush, guide effect is not obvious especially, still suffers from the bigger pressure loss
And draft loss.
Utility model content
The purpose of this utility model is: provide the stator vent segment of a kind of front wind-guide, the existing electricity of effective solution
Machine ventilating and cooling technology exists the technical problem of draft loss.
The purpose of this utility model is to be realized by following technical proposals: the stator vent segment of a kind of front wind-guide,
Including ventilation steel channel, stator punching, stator bar and stator punching teeth portion, two stator punchings and ventilation steel channel are fixed together
Forming vent segment, the internal diameter of described vent segment is less than the internal diameter of stator core in stator bar, and the front end of ventilation steel channel is
Ventilation steel channel wind-guiding section, ventilation steel channel wind-guiding section bending direction is contrary with rotor direction of rotation.
As a kind of optimal way, ventilation steel channel wind-guiding section protrudes stator bar.
As a kind of optimal way, described vent segment gos deep into a length of 1-30mm of air gap.
As a kind of optimal way, described vent segment gos deep into the 2%-75% of a length of air gap value of air gap.
As a kind of optimal way, ventilation steel channel is located at the middle part of two stator punchings, and two stator punchings and one are led to
Wind channel-section steel is welded and fixed.
As a kind of optimal way, described ventilation steel channel arranges 1-2 root in each stator punching teeth portion, formed I shape or
The airtight wind guide chamber of cell type.
As a kind of optimal way, described ventilation steel channel is I-shaped, square.
As a kind of optimal way, also include that groove contract, groove contract are located at the front end of stator bar.
In this utility model, the effect of part is as follows:
Ventilation steel channel: support segmented stator core and form stator wind path, and guide cooling radial flow of air to move.
Ventilation steel channel wind-guiding section: the swirling eddy in air gap is imported stator wind path.
Stator bar: participate in energy exchange, turns on stator current, stator major heat producing components.
Stator punching: form magnetic circuit, turns on magnetic field, is used for supporting stator bar.
Stator punching teeth portion: form stator radial magnetic circuit, be used for supporting stator bar.
Groove contract: for fixed stator bar.
Compared with prior art, the beneficial effects of the utility model: the stator vent segment of this utility model front wind-guide,
By reducing vent segment internal diameter, make ventilation steel channel guide section protrude iron core, go deep into air gap, it is possible in advance by the rotation in air gap
Air-flow imports stator wind path, strengthens the guide effect of ventilation steel channel, thus reduces draft loss and the pressure loss further.
Accompanying drawing explanation
Fig. 1 is the flat cross-sectional view of the stator vent segment of this utility model front wind-guide.
Fig. 2 is the perspective view of the stator vent segment of this utility model front wind-guide.
In figure: ventilation steel channel-1, stator punching-2, stator bar-3, stator punching teeth portion-4, groove contract-5, ventilation steel channel
Wind-guiding section-6, internal diameter-7 of stator core, internal diameter-8 of wind slotted vane, rotor direction of rotation-9.
Detailed description of the invention
Below in conjunction with specific embodiment, this utility model is further described.
All features disclosed in this specification, or disclosed all methods or during step, except mutually exclusive
Speciality and/or step beyond, all can combine by any way, unless specifically stated otherwise, all can by other equivalence or there is class
Replaced like the alternative features of purpose, i.e. unless specifically stated otherwise, in a series of equivalences of each feature or similar characteristics
Individual embodiment.
As shown in Figure 1, 2, the stator vent segment of this utility model front wind-guide, including ventilation steel channel 1, stator punching 2,
Stator bar 3, stator punching teeth portion 4, groove contract 5 and ventilation steel channel wind-guiding section 6.Groove contract 5 is located at the front end of stator bar 3.This reality
The internal diameter executing stator punching 2 in example is less than the internal diameter of existing stator punching, and ventilation steel channel 1 is located in two stator punchings 2
Portion, two stator punchings 2 and ventilation steel channel 1 are fixed together formation vent segment by the way of welding, as other choosing
Selecting mode, two stator punchings and ventilation steel channel can also with bolts or other connected modes be fixed.
The internal diameter 8 of described vent segment is less than the internal diameter 7 of stator core, and the front end of ventilation steel channel 1 is ventilation steel channel wind-guiding
Section 6, ventilation steel channel wind-guiding section 6 protrudes stator bar 3, ventilation steel channel wind-guiding section 6 bending direction and Fig. 1 rotor direction of rotation 9
On the contrary, to reach to direct the air in advance the effect of stator wind path.
By reducing stator vent segment internal diameter, make the guide section of ventilation steel channel protrude iron core internal diameter, go deep into air gap, in advance
Swirling eddy in air gap is imported stator wind path, strengthens the guide effect of ventilation steel channel, thus reduce draft loss further
And the pressure loss.
Described vent segment gos deep into a length of 1-30mm of air gap.Or described vent segment gos deep into a length of gas of air gap
The 2%-75% of gap value.
Described ventilation steel channel 1 arranges 1-2 root in each stator punching teeth portion 4, forms I shape or the airtight wind-guiding of cell type
Chamber.
Described ventilation steel channel 1 is I-shaped, square.
Workflow of the present utility model:
Generator amature rotates, and such as the rotor direction of rotation 9 in Fig. 1, drives air circumferential flow in air gap.Ventilation steel channel
Wind-guiding section gos deep into air gap, circumference air-flow is imported the stator wind path formed by ventilation steel channel and participates in heat exchange.Stator bar produces
Heat taken away by the cooling air of Radial Flow, control stator bar temperature rise in reasonable level.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all at this
Any amendment, equivalent and the improvement etc. made within the spirit of utility model and principle, should be included in this utility model
Protection domain within.
Claims (8)
1. a stator vent segment for front wind-guide, including ventilation steel channel (1), stator punching (2), stator bar (3) and fixed
Sub-punching teeth portion (4), two stator punchings (2) and ventilation steel channel (1) are fixed together formation vent segment, it is characterised in that:
The internal diameter of described vent segment is less than the internal diameter of stator core in stator bar, and the front end of ventilation steel channel (1) is that ventilation steel channel is led
Wind section (6), ventilation steel channel wind-guiding section (6) bending direction is contrary with rotor direction of rotation.
2. the stator vent segment of front wind-guide as claimed in claim 1, it is characterised in that: ventilation steel channel wind-guiding section (6) is convex
Go out stator bar (3).
3. the stator vent segment of front wind-guide as claimed in claim 1, it is characterised in that: described vent segment gos deep into air gap
A length of 1-30mm.
4. the stator vent segment of front wind-guide as claimed in claim 1, it is characterised in that: described vent segment gos deep into air gap
The 2%-75% of a length of air gap value.
5. the stator vent segment of front wind-guide as claimed in claim 1, it is characterised in that: ventilation steel channel (1) is located at two
The middle part of stator punching (2), two stator punchings (2) and a ventilation steel channel (1) are welded and fixed.
6. the stator vent segment of front wind-guide as claimed in claim 1, it is characterised in that: described ventilation steel channel (1) is often
Individual stator punching teeth portion (4) arranges 1-2 root, forms I shape or the airtight wind guide chamber of cell type.
7. the stator vent segment of front wind-guide as claimed in claim 1, it is characterised in that: described ventilation steel channel (1) is work
Font, square.
8. the stator vent segment of front wind-guide as claimed in claim 1, it is characterised in that: also include groove contract (5), groove contract
(5) front end of stator bar (3) it is located at.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620474545.0U CN205791824U (en) | 2016-05-24 | 2016-05-24 | The stator vent segment of front wind-guide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620474545.0U CN205791824U (en) | 2016-05-24 | 2016-05-24 | The stator vent segment of front wind-guide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205791824U true CN205791824U (en) | 2016-12-07 |
Family
ID=58114899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620474545.0U Active CN205791824U (en) | 2016-05-24 | 2016-05-24 | The stator vent segment of front wind-guide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205791824U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110635583A (en) * | 2018-08-31 | 2019-12-31 | 北京金风科创风电设备有限公司 | Core for electromagnetic device and lamination thereof |
| WO2021047250A1 (en) * | 2019-09-09 | 2021-03-18 | 西安中车永电捷力风能有限公司 | Rotor ventilation channel plate and rotor iron core structure |
-
2016
- 2016-05-24 CN CN201620474545.0U patent/CN205791824U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110635583A (en) * | 2018-08-31 | 2019-12-31 | 北京金风科创风电设备有限公司 | Core for electromagnetic device and lamination thereof |
| WO2021047250A1 (en) * | 2019-09-09 | 2021-03-18 | 西安中车永电捷力风能有限公司 | Rotor ventilation channel plate and rotor iron core structure |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |