CN205349845U - Internal fan for electric machine - Google Patents
Internal fan for electric machine Download PDFInfo
- Publication number
- CN205349845U CN205349845U CN201521059896.7U CN201521059896U CN205349845U CN 205349845 U CN205349845 U CN 205349845U CN 201521059896 U CN201521059896 U CN 201521059896U CN 205349845 U CN205349845 U CN 205349845U
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- CN
- China
- Prior art keywords
- fan
- electric machine
- blade
- internal
- motor
- 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.)
- Expired - Fee Related
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Abstract
(B, ) the utility model relates to an internal fan for electric machine. The flow in whole fluid territory and the fluid flow condition received internal fan for electric machine at to a great extent influence in the motor. The fan is generally for hypsokinesis centrifugal fan in the present medium -sized high -tension motor, and the blade molded lines generally be the straight line, high power density motor that this type of fan was comparatively given prominence to to the problem of generating heat, and its cooling effect is not satisfactory. The utility model discloses its constitution includes: an internal fan for electric machine which constitutes and includes: fan shroud (b) (b) 1 (b) (b), fan hub disk (b) (b) 2 (b) (b), the fan shroud the fan hub disk be connected with fan blade (b) (b) 3 (b) (b) respectively, fan rooting -in of blades on wheel hub (b) (b) 4 (b) (b), the fan blade adopt the molded lines be half radial blade of arc. The utility model is used for internal fan for electric machine. (B, )
Description
Technical field:
This utility model relates to a kind of novel internal fan for electric machine structure.
Background technology:
In motor, the flow of whole fluid domain and fluid mobility status are to a great extent by the impact of internal fan for electric machine.Current medium-sized high pressure motor internal fan is generally hypsokinesis centrifugal fan, and vane type line is generally straight line, the high power density motor that this type of fan comparatively highlights for heating problem, and its cooling effect is not satisfactory.
Summary of the invention:
The purpose of this utility model is to improve the air quantity that fan provides on operating point, thus effectively reducing motor temperature rise.
Above-mentioned purpose is achieved through the following technical solutions:
A kind of internal fan for electric machine, its composition includes: fan shroud, fan hub disk, described fan shroud, described fan hub disk are connected with fan blade respectively, and described fan blade is arranged on wheel hub, half radial blade that described fan blade adopts molded line to be circular arc；
Described internal fan for electric machine, described fan blade quantity is 12；Fan inlet angle is 25 °, and the angle of outlet is 90 °, and the air quantity that fan provides when rated operation point increases, and can improve the flowing velocity of whole fluid domain fluid in motor, improve the cooling effect within medium-sized high-pressure electrical machinery.
The beneficial effects of the utility model are:
It is 25 ° that 9 blade BI fans former in motor are improved to fan inlet angle by this utility model, and the angle of outlet is that 12 blade radius of 90 ° are to fan.Can improving fan outlet static pressure compared with former fan, the air quantity that fan provides when rated operation point increases.
Internal fan for electric machine designed by this utility model keeps the installation dimension of former hypsokinesis centrifugal fan, the size of vane tip average diameter and root of blade average diameter remains unchanged, former fan inside/outside diameter size is consistent, adopt former fan shroud and hub disk, only blade construction is improved, can ensure that installation dimension is constant, reduce manufacturing cost, maintain the uniformity of electric machine structure.
This utility model can improve fan outlet static pressure compared with former fan, the air quantity that fan provides when rated operation point increases, the flowing velocity of whole fluid domain fluid in motor can be improved, improve the cooling effect within medium-sized high-pressure electrical machinery, especially the heat dissipation problem of the high power density high-voltage motor that heating problem comparatively highlights can be solved, its temperature rise can be effectively reduced.
Accompanying drawing illustrates:
Accompanying drawing 1 is structural representation of the present utility model.
Detailed description of the invention:
Embodiment 1:
A kind of internal fan for electric machine, its composition includes: fan shroud 1, fan hub disk 2, described fan shroud, described fan hub disk are connected with fan blade 3 respectively, and described fan blade is arranged on wheel hub 4, half radial blade that described fan blade adopts molded line to be circular arc；
Described internal fan for electric machine, described fan blade quantity is 12；Fan inlet angle is 25 °, and the angle of outlet is 90 °, and the air quantity that fan provides when rated operation point increases, and can improve the flowing velocity of whole fluid domain fluid in motor, improve the cooling effect within medium-sized high-pressure electrical machinery.
Claims (1)
1.A kind of internal fan for electric machine, its composition includes: fan shroud, fan hub disk, it is characterized in that: described fan shroud, described fan hub disk are connected with fan blade respectively, and described fan blade is arranged on wheel hub, half radial blade that described fan blade adopts molded line to be circular arc；
Described internal fan for electric machine, described fan blade quantity is 12；Fan inlet angle is 25 °, and the angle of outlet is 90 °, and the air quantity that fan provides when rated operation point increases, and can improve the flowing velocity of whole fluid domain fluid in motor, improve the cooling effect within medium-sized high-pressure electrical machinery。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521059896.7U CN205349845U (en) | 2015-12-19 | 2015-12-19 | Internal fan for electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521059896.7U CN205349845U (en) | 2015-12-19 | 2015-12-19 | Internal fan for electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205349845U true CN205349845U (en) | 2016-06-29 |
Family
ID=56169654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521059896.7U Expired - Fee Related CN205349845U (en) | 2015-12-19 | 2015-12-19 | Internal fan for electric machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205349845U (en) |
-
2015
- 2015-12-19 CN CN201521059896.7U patent/CN205349845U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20161219 |