CN205744514U - A kind of EMUs cooling system outer rotor cooling fan - Google Patents
A kind of EMUs cooling system outer rotor cooling fan Download PDFInfo
- Publication number
- CN205744514U CN205744514U CN201620356820.9U CN201620356820U CN205744514U CN 205744514 U CN205744514 U CN 205744514U CN 201620356820 U CN201620356820 U CN 201620356820U CN 205744514 U CN205744514 U CN 205744514U
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- China
- Prior art keywords
- fan
- impeller
- blade
- wheel disc
- cooling fan
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Abstract
This utility model relates to a kind of EMUs cooling system outer rotor cooling fan, and including impeller and motor, it is a kind of centrifugal fan；Impeller is fixed on the rotor of motor；Front wheel disc in ventilation blower is circular arc type bending structure, and blade is that backward circular arc distorts formula incline structure；Rear trochal disc is projective table type bending structure.Front wheel disc on cooling fan, blade constitute the flow passage structure of blower fan together with rear trochal disc；Hub disk outer and inside all use pressure-type structure；Forward and backward wheel disc is slotted, fixing and locating blades；Blade uses backward circular arc distortion formula incline structure parameters all to reach optimization cooperation, improves the performance parameter of blower fan with being effective, the most also makes fan noise be down to minimum.The optimization design of comprehensive aspects above so that when effective static pressure of blower fan reaches 750Pa, flow reaches 2.1 m/ s, and total head performance reaches more than 52%, and power is less than 3.5kW, and noise sound is less than 88dB (A).Blower fan smooth running, safe and reliable.
Description
Technical field
This utility model relates to a kind of EMUs cooling system outer rotor cooling channel, and this outer rotor cooling channel is suitable for
In the low noise of EMUs cooling system environmental requirement, low vibration and the cooling fan of greater efficiency, belong to fluid machinery neck
Territory.
Background technology
Cooling fan is a vitals in EMUs cooling system, during the work of EMUs cooling system, respectively controls
System processed and mechanical organ ceaselessly operate, and create substantial amounts of heat.If can not lower the temperature in time, it will make these machinery
Component life reduces, and even scaling loss, finally resulting in EMUs cooling system can not work.Owing to the working environment of EMUs compares
Badly, and cooling fan is arranged on the bottom of EMUs, time be often accompanied by wind, rain, snow weather and once in a while by salt fog, coal dust and
The impact of sandstorm, therefore the welding performance of blower fan structure part is required higher, reliability requirement is bigger.Secondly it is exactly to ensure wind
Under conditions of the performance of machine product is constant, improve fan efficiency as far as possible, to reduce energy resource consumption, reduce noise, and subtract as far as possible
The volume of little blower fan and quality.
Summary of the invention
The purpose of this utility model is to overcome the deficiency of prior art and defect, it is provided that a kind of simple and compact for structure, peace
Dress is convenient, low noise, the EMUs cooling system outer rotor cooling fan of flow trim.
The technical solution of the utility model: a kind of EMUs cooling system outer rotor cooling fan, including impeller and
Motor, it is characterised in that described outer rotor cooling fan is centrifugal fan, and the impeller in cooling fan is arranged on
On the rotor of motor, this impeller includes rear trochal disc, blade and front wheel disc；Front wheel disc, blade and trailing wheel on this cooling fan
Dish constitutes the flow passage structure of blower fan together；
Front wheel disc in described impeller is for being circular arc type bending structure, and rear trochal disc is projective table type bending structure, and blade is
Backward circular arc distortion formula incline structure；
Described impeller effective diameter is 540mm, blade quantity 9, rear trochal disc lateral lobe sheet exit installation angle 26～29 °,
Preferably exit installation angle is 27.2 °；Front wheel disc lateral lobe sheet exit installation angle 24～28 °, preferably exit installation angle 26 °, impeller enters
Mouth a diameter of 395～φ 342, blade exit width is 194～198mm.
This outer rotor cooling fan uses backward centrifugal structure；Hub disk outer and inside all use die mould
Structure；Forward and backward wheel disc is slotted, fixing and locating blades；Blade uses backward circular arc distortion formula incline structure；Impeller passes through bolt
It is fixed on the rotor of motor；
Impeller in this utility model uses efficient backward distortion tilting blade, and natural air enters from the front wheel disc of blower fan
Air port sucks, and after impeller blade pressurizes, is discharged by the passage between forward and backward wheel disc, is reached for EMUs cooling system fall
The effect of temperature cooling.Its main feature has: low-head, and high-energy is with high content of technology, and noise is low；Overall structure is extremely compact, empty
Between utilization rate high, be especially suitable for the installation requirement in little space required by EMUs, it makes full use of the advantage of centrifugal fan,
Performance curve is smooth, in specific mechanical is taken up space, keeps being provided that bigger flow under the operating mode of lower pressure, and flow is put down
Surely, the requirement of AuCT cooling fan can be met very well.
This utility model is applied to EMUs cooling system, it is provided that a kind of aeroperformance is good, the high and low noise of efficiency, weight
Light EMUs cooling system outer rotor cooling fan.Technical characterstic of the present utility model: front wheel disc, blade, rear trochal disc
Using optimized design structure Deng major part, front wheel disc uses circular arc type bending structure, and blade uses distortion formula
Incline structure；Rear trochal disc uses projective table type bending structure, and parameters all reaches optimization and coordinates, and improves with being effective
The performance parameter of blower fan, the most also makes fan noise be down to minimum.The optimization design of comprehensive aspects above so that blower fan
When effectively static pressure reaches 750Pa, flow reaches 2.1 m/s, and total head performance reaches more than 52%, and power is less than 3.5kW, makes an uproar
Several arbitrarily downgrade less than 88dB (A).Blower fan smooth running, safe and reliable.
Accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present utility model；
Fig. 2 is left view structural representation of the present utility model；
In figure: 1-impeller, 2-rear trochal disc, 3-blade, wheel disc before 4-, 5-motor.
Detailed description of the invention
With reference to above-mentioned figure, a kind of EMUs cooling system outer rotor cooling fan, including impeller 1 and motor 5, it is special
Levying and be that this described outer rotor cooling fan is centrifugal fan, the impeller 1 in cooling fan is arranged on motor 5
On rotor, this impeller 1 includes rear trochal disc 2, blade 3 and front wheel disc 4；Front wheel disc 4, blade 3 and trailing wheel on this cooling fan
Dish 2 constitutes the flow passage structure of blower fan together；
The described front wheel disc 4 in impeller 1 is for being circular arc type bending structure, and rear trochal disc 2 is projective table type bending structure, blade
3 is that backward circular arc distorts formula incline structure；
Described impeller 1 effective diameter is 540mm, blade quantity 9, and rear trochal disc lateral lobe sheet exit installation angle is 27.2 °；
Front wheel disc lateral lobe sheet exit installation angle is 26 °, and impeller 1 inlet diameter is 395～φ 342, blade 3 exit width be 194～
198mm。
This utility model uses circular arc type bending structure, leaf due to the excellent aeroperformance of vane foil, front wheel disc 4
Sheet 3 uses backward circular arc distortion formula incline structure；Rear trochal disc 2 uses projective table type bending structure, all have employed optimum
Change design, it is ensured that blower pressure, stability of flow, power is relatively low, makes noise reach reduced levels simultaneously.Blower fan shakes
Little, smooth running is reliable.
Claims (2)
1. an EMUs cooling system outer rotor cooling fan, including impeller (1) and motor (5), it is characterised in that:
Described outer rotor cooling fan is centrifugal fan, and the impeller (1) in cooling fan is arranged on motor (5)
On rotor, this impeller (1) includes rear trochal disc (2), blade (3) and front wheel disc (4)；Front wheel disc (4) on this cooling fan, leaf
Sheet (3) constitutes the flow passage structure of blower fan together with rear trochal disc (2)；
The described front wheel disc (4) in impeller (1) is circular arc type bending structure, and rear trochal disc (2) is projective table type bending structure, blade
(3) it is that backward circular arc distorts formula incline structure.
2. EMUs cooling system outer rotor cooling fan as claimed in claim 1, it is characterised in that described impeller
(1) effective diameter is 540mm, blade quantity 9, wheel disc lateral lobe sheet outlet before rear trochal disc lateral lobe sheet exit installation angle 26～29 °
Established angle 24～28 °, impeller (1) inlet diameter is 395～φ 342, and blade (3) exit width is 194～198mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620356820.9U CN205744514U (en) | 2016-04-26 | 2016-04-26 | A kind of EMUs cooling system outer rotor cooling fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620356820.9U CN205744514U (en) | 2016-04-26 | 2016-04-26 | A kind of EMUs cooling system outer rotor cooling fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205744514U true CN205744514U (en) | 2016-11-30 |
Family
ID=57372150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620356820.9U Expired - Fee Related CN205744514U (en) | 2016-04-26 | 2016-04-26 | A kind of EMUs cooling system outer rotor cooling fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205744514U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113606187A (en) * | 2021-09-13 | 2021-11-05 | 安徽环茨智能科技有限公司 | Grain type blade of ternary impeller of high-speed centrifugal fan |
-
2016
- 2016-04-26 CN CN201620356820.9U patent/CN205744514U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113606187A (en) * | 2021-09-13 | 2021-11-05 | 安徽环茨智能科技有限公司 | Grain type blade of ternary impeller of high-speed centrifugal fan |
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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 |
Granted publication date: 20161130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |