CN102322430A - Double-air channel internal fan - Google Patents
Double-air channel internal fan Download PDFInfo
- Publication number
- CN102322430A CN102322430A CN201110325572A CN201110325572A CN102322430A CN 102322430 A CN102322430 A CN 102322430A CN 201110325572 A CN201110325572 A CN 201110325572A CN 201110325572 A CN201110325572 A CN 201110325572A CN 102322430 A CN102322430 A CN 102322430A
- Authority
- CN
- China
- Prior art keywords
- fan
- air
- fan cover
- double
- air channel
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors
- F04D29/286—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors multi-stage rotors
Abstract
The invention discloses a double-air channel internal fan, relates to an internal fan of a cage motor, and solves the problems of unreasonable outlet angle and inlet angle and unsmooth air circulation of the conventional internal fan. The double-air channel internal fan comprises a fan disc, a fan blade I, a fan cover I, a fan blade II, a fan cover II and a hub shaft hole, wherein the fan disc provided with a balance groove is arranged on the hub shaft hole provided with a hub key groove; the fan blade I is arranged between the fan disc and the fan cover I; and the fan blade II is arranged between the fan cover I and the fan cover II. The internal fan has a double-air channel structure, so that the flow rate of air in a gap is increased, a motor winding is more quickly radiated, temperature rise is more uniform, and the problem of high temperature rise of the end of the motor winding is solved; and a radial straight blade type is adopted, so pressure acquired by gas is higher, the circulation of air in a motor is better facilitated, and the strength of the blades is improved.
Description
Technical field
The present invention relates to cage modle motor internal fan, be specifically related to a kind of pair of air channel internal fan.
Background technique
In the cage modle motor, internal fan is the unique dynamical element of wind path circuit in the motor, and the temperature rise of motor is played crucial effects, the internal fan design rationally whether, with the long-term stability operation that directly influences complete machine and the working life of motor.
The internal fan of existing cage modle motor all is the centrifugal cutter of the common BI blade of cast aluminium material usually, and have following defective: (1) motor ventilation road is uniformly distributed with on the support circumference, and the BI blade is unfavorable for the smooth and easy circulation of motor internal air; (2) the inlet angle is unreasonable; (3) internal fan end stator winding end air velocity is slow, causes the end winding temperature rise high.
Summary of the invention
The present invention is for the exit angle and reasonable, the sluggish in air circulation problem in inlet bight that solves existing internal fan existence, and a kind of pair of air channel internal fan is provided.
The present invention realizes through following technological scheme:
A kind of pair of air channel fan; Comprise blades, flabellum I, fan cover I, flabellum II, fan cover II, wheel hub axis hole; The blades that offers compensating groove on it is installed on the wheel hub axis hole that is provided with the wheel hub keyway; Be provided with flabellum I between blades and the fan cover I, fan cover I and fan cover II are provided with flabellum II.
Further, described flabellum I and flabellum II are the radial blade structure.
Internal fan of the present invention adopts the straight radial blade pattern, and than the BI blade, the energy that the radial blade impeller provides is higher, thereby the pressure that gas is obtained is higher, more helps the circulation of motor internal air; From physical dimension, under the prerequisite that reaches same gas pressure, radial impeller can adopt littler diameter than the back to impeller; See that from the technology viewpoint straight-vaned manufacturing is the simplest; See that from the intensity viewpoint intensity of radial blade is the highest.
Internal fan of the present invention adopts two air flue structures, has adopted the flabellum and the fan cover of two kinds of different types, and one of them cooling air duct is through rotor ventilation road cooled rotor, and another cooling air duct is through air gap cooling end.Than common single air flue structure; This structure has increased speed air flow in the air gap; Make the air in the air gap under the negative pressure that fan produces, get into the support ventilation flue, the heat of stator and rotor near the winding generation of air gap in time taken in the support radiating fin, make its heat radiation faster; Temperature rise is more even, thereby has solved the problem of electric motor winding end temperature rise.
Description of drawings
Fig. 1 is a structural front view of the present invention;
Fig. 2 is an interior circulation wind path schematic representation of the present invention;
Among the figure: 1-compensating groove, 2-blades, 3-flabellum I, 4-fan cover I, 5-flabellum II, 6-fan cover II, 7-wheel hub keyway, 8-wheel hub axis hole, 9-stator winding end, 10-stator circulation air path, 11 rotor ventilation roads.
Embodiment
Below in conjunction with accompanying drawing the present invention is described further.
A kind of pair of air channel fan as shown in Figure 1; Comprise blades 2, flabellum I3, fan cover I4, flabellum II5, fan cover II6, wheel hub axis hole 8; The blades 2 that offers compensating groove 1 on it is installed on the wheel hub axis hole 8 that is provided with wheel hub keyway 7; Be provided with flabellum I3 between blades 2 and the fan cover I4, fan cover I4 and fan cover II6 are provided with flabellum II5.
Flabellum I3 and flabellum II5 are radial blade.
The present invention is used for YJ50 series cage modle motor; Can reach the effect that reduces electric machine temperature rise 4K; Circulation wind path schematic representation is as shown in Figure 2 in it; One of them cooling air duct is through rotor ventilation road 11 cooled rotors, and another cooling air duct through stator winding end 9 cools off the end through air gap, and two wind paths get into stator circulation air paths 10 and cool off.
Claims (2)
1. two air channels fan; It is characterized in that comprising blades (2), flabellum I (3), fan cover I (4), flabellum II (5), fan cover II (6), wheel hub axis hole (8); The blades (2) that wherein offers compensating groove (1) on it is installed on the wheel hub axis hole (8) that is provided with wheel hub keyway (7); Be provided with flabellum I (3) between blades (2) and the fan cover I (4), fan cover I (4) and fan cover II (6) are provided with flabellum II (5).
2. according to the said a kind of pair of air channel fan of claim 1, it is characterized in that described flabellum I (3) and flabellum II (5) are the radial blade structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110325572A CN102322430A (en) | 2011-10-24 | 2011-10-24 | Double-air channel internal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110325572A CN102322430A (en) | 2011-10-24 | 2011-10-24 | Double-air channel internal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102322430A true CN102322430A (en) | 2012-01-18 |
Family
ID=45450235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110325572A Pending CN102322430A (en) | 2011-10-24 | 2011-10-24 | Double-air channel internal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102322430A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102842990A (en) * | 2012-08-24 | 2012-12-26 | 上海特波电机有限公司 | Low wind noise motor |
| CN107681830A (en) * | 2017-10-18 | 2018-02-09 | 江门市地尔汉宇电器股份有限公司 | A kind of totally enclosed motor and its air-cooled impeller and the electric car using the motor |
| CN108365703A (en) * | 2018-01-31 | 2018-08-03 | 江门市地尔汉宇电器股份有限公司 | The air-cooled impeller of motor, double air duct motors and electric vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5105616A (en) * | 1989-12-07 | 1992-04-21 | Sundstrand Corporation | Gas turbine with split flow radial compressor |
| CN2417315Y (en) * | 2000-03-03 | 2001-01-31 | 高东旗 | Centrifugical and double disc type cooling fan |
| US6578351B1 (en) * | 2001-08-29 | 2003-06-17 | Pratt & Whitney Canada Corp. | APU core compressor providing cooler air supply |
| US20030190230A1 (en) * | 2002-04-09 | 2003-10-09 | Koji Ito | Centrifugal blower unit |
| CN2823613Y (en) * | 2005-07-10 | 2006-10-04 | 曹大清 | Single suction double runner double closed vane |
| CN202370865U (en) * | 2011-10-24 | 2012-08-08 | 永济新时速电机电器有限责任公司 | Dual-air duct internal fan |
-
2011
- 2011-10-24 CN CN201110325572A patent/CN102322430A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5105616A (en) * | 1989-12-07 | 1992-04-21 | Sundstrand Corporation | Gas turbine with split flow radial compressor |
| CN2417315Y (en) * | 2000-03-03 | 2001-01-31 | 高东旗 | Centrifugical and double disc type cooling fan |
| US6578351B1 (en) * | 2001-08-29 | 2003-06-17 | Pratt & Whitney Canada Corp. | APU core compressor providing cooler air supply |
| US20030190230A1 (en) * | 2002-04-09 | 2003-10-09 | Koji Ito | Centrifugal blower unit |
| CN2823613Y (en) * | 2005-07-10 | 2006-10-04 | 曹大清 | Single suction double runner double closed vane |
| CN202370865U (en) * | 2011-10-24 | 2012-08-08 | 永济新时速电机电器有限责任公司 | Dual-air duct internal fan |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102842990A (en) * | 2012-08-24 | 2012-12-26 | 上海特波电机有限公司 | Low wind noise motor |
| CN107681830A (en) * | 2017-10-18 | 2018-02-09 | 江门市地尔汉宇电器股份有限公司 | A kind of totally enclosed motor and its air-cooled impeller and the electric car using the motor |
| CN108365703A (en) * | 2018-01-31 | 2018-08-03 | 江门市地尔汉宇电器股份有限公司 | The air-cooled impeller of motor, double air duct motors and electric vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120118 |