CN202140349U - Side air-inlet small-size cooling fan - Google Patents
Side air-inlet small-size cooling fan Download PDFInfo
- Publication number
- CN202140349U CN202140349U CN201120190576U CN201120190576U CN202140349U CN 202140349 U CN202140349 U CN 202140349U CN 201120190576 U CN201120190576 U CN 201120190576U CN 201120190576 U CN201120190576 U CN 201120190576U CN 202140349 U CN202140349 U CN 202140349U
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- CN
- China
- Prior art keywords
- fan
- casing
- motor
- side air
- fixing frame
- 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
本实用新型公开了一种侧进风小型散热风扇。侧进风小型散热风扇包括轴流风扇、电机、电机固定架、机匣、通风口；机匣上固定有电机固定架，电机固定架上固定电机，在电机的转动轴上固定有轴流风扇，轴流风扇包括轮毂和多个叶片，机匣侧面设有通风口。所述的机匣的外形为圆锥形。本实用新型在保证风扇稳固安装的基本功能的同时，允许气体从机匣通风口流入，使风扇运行时径向四面进风，大大改善叶顶处的流动状况，从而改善风扇性能及噪音状况。对机匣形状没有特殊要求，此设计易于实现与推广。
The utility model discloses a small cooling fan with side air intake. The small side air cooling fan includes an axial fan, a motor, a motor fixing frame, a casing, and a vent; the casing is fixed with a motor fixing frame, the motor is fixed on the fixing frame, and the axial flow fan is fixed on the rotation shaft of the motor. , the axial flow fan includes a hub and multiple blades, and there are vents on the side of the casing. The outer shape of the casing is conical. While ensuring the basic function of the stable installation of the fan, the utility model allows gas to flow in from the vent of the casing, so that the fan can enter radially from all sides when the fan is running, greatly improving the flow condition at the top of the blade, thereby improving the performance and noise of the fan. There is no special requirement on the shape of the casing, and this design is easy to implement and popularize.
Description
Technical field
The utility model relates to small-sized heat radiating fan, relates in particular to a kind of side air intake small-sized heat radiating fan.
Background technique
The small-size shaft flow fan is mainly used in the heat radiation and the ventilation of electronic equipments such as computer, electronic device.Along with the continuous increase of electrical equipment power, increasing to the low noise radiation fan demand of high ventilation.The casing of fan is the shelter of all parts of fan, guarantees that firm being installed on it of various parts is its basic functions.The casing of common radiation fan adopts closure designs, and the formed blade tip clearance of the parcel of blade is caused harmful effect to the aeroperformance and the noise index of fan, and the utility model is intended to improve the ventilation situation of casing.
Summary of the invention
The purpose of the utility model is in order to overcome blade tip clearance between conventional fan blade end and the casing to the harmful effect that flow condition produces, a kind of side air intake small-sized heat radiating fan to be provided.
Side air intake small-sized heat radiating fan comprises axial fan, motor, motor fixing frame, casing, ventilated port; Be fixed with motor fixing frame on the casing, fixed electrical machinery on the motor fixing frame is fixed with axial fan on the rotatingshaft of motor, and axial fan comprises wheel hub and a plurality of blade, and the casing side is provided with ventilated port.
The profile of described casing is conical.
The utility model allows gas to flow into from the casing ventilated port when guaranteeing the firm fundamental function of installing of fan, and four sides air intake radially when making the fan operation improves the flow condition of blade end greatly, thereby improves fan performance and noise condition.Externally the shaped as frame shape does not have specific (special) requirements, and this design is easy to realize and promotes.Under the prerequisite of the soundness that guarantees housing, the density of casing ventilated port adjusts with the fan height, makes the maximization of air intake zone cover blade end.
Description of drawings
Fig. 1 is a side air intake small-sized heat radiating fan structural representation;
Fig. 2 is that the profile of casing is conical side air intake small-sized heat radiating fan structural representation.
Embodiment
Like Fig. 1, shown in 2, side air intake small-sized heat radiating fan comprises axial fan 3, motor 4, motor fixing frame 5, casing 6, ventilated port 7; Be fixed with motor fixing frame 5 on the casing 6, fixed electrical machinery 4 on the motor fixing frame 5, on the rotatingshaft of motor 4, are fixed with axial fan 3, and axial fan 3 comprises wheel hub 2 and a plurality of blades 1, and casing 6 sides are provided with ventilated port 7.
The profile of described casing 6 is conical.
The effect that the utility model casing 6 has fan attachment and assembles air-flow, in common small-sized fans, casing is indispensable.Casing is wrapped in fan, must keep certain clearance between the two, and guaranteeing the trouble free service of ventilator, the size in gap has very big influence to parameters such as the efficient of ventilator, total head, noises.The gap causes blade tip and both sides, casing gap to have very big pressure reduction, thereby causes radially and leak out.Formed so-called " circulating wind ', the merit that forms of this part circulating air flow slatterned in vain, causes leakage loss, causes near the acting the leaf top to reduce.The deterioration of the flow condition of blade tip clearance simultaneously forms the gap eddy current, produces huge noise.Transformation to the casing gap can effectively improve aeroperformance and noise.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120190576U CN202140349U (en) | 2011-06-08 | 2011-06-08 | Side air-inlet small-size cooling fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120190576U CN202140349U (en) | 2011-06-08 | 2011-06-08 | Side air-inlet small-size cooling fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202140349U true CN202140349U (en) | 2012-02-08 |
Family
ID=45551407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120190576U Expired - Fee Related CN202140349U (en) | 2011-06-08 | 2011-06-08 | Side air-inlet small-size cooling fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202140349U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102207097A (en) * | 2011-06-08 | 2011-10-05 | 浙江理工大学 | Small-sized heat radiating fan with lateral intake |
-
2011
- 2011-06-08 CN CN201120190576U patent/CN202140349U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102207097A (en) * | 2011-06-08 | 2011-10-05 | 浙江理工大学 | Small-sized heat radiating fan with lateral intake |
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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: 20120208 Termination date: 20150608 |
|
| EXPY | Termination of patent right or utility model |