CN201714688U - Novel fan for 268-type universal generator - Google Patents
Novel fan for 268-type universal generator Download PDFInfo
- Publication number
- CN201714688U CN201714688U CN2010200553702U CN201020055370U CN201714688U CN 201714688 U CN201714688 U CN 201714688U CN 2010200553702 U CN2010200553702 U CN 2010200553702U CN 201020055370 U CN201020055370 U CN 201020055370U CN 201714688 U CN201714688 U CN 201714688U
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- fan
- blade
- generator
- fan chassis
- chassis
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Abstract
The utility model relates to a radiator fan, particularly to a fan for a 268-type universal generator, which comprises a fan base plate. A shaft hole is formed at the center of the plate surface of the base plate, fixing holes are formed at the periphery of the shaft hole, and fan blades perpendicular to the plate surface are uniformly arranged on the plate surface of the base plate. The fan is characterized in that an insert is arranged in the fixing hole, and the intersection line between the blade and the plate surface base plate of the fan is a circular-arc and straight-line section. Compared with the fan for the traditional 268-type universal generator, the fan provided by the utility model has increased wind power, improved firmness of shaft connection and reduced vibration during heat radiation, and is helpful for improving heat radiation effect.
Description
Technical field
The utility model relates to a kind of radiation fan, relates in particular to a kind of 268 logical machine Power generator fans.
Background technique
Generator mainly is used under the power-off condition, or does not have the environment of power supply, is the consumer power supply, in the logical machine generator is installed.The stator of 268 logical machine generators is provided with skeleton, the line bag is installed on the skeleton, because the power of 268 logical machine generators has 3-8kw, power is bigger, line bag heating value in the generator unit stator is very big at this moment, when temperature is too high, can influence the generator proper functioning, therefore need the sink that radiating effect is good.At present the most frequently used sink is a fan, and the main shaft of generator amature is extended out, and installs logical machine fan.For the ease of making, 268 common logical machine fans, as shown in Figure 4, the once-through of many employing plastic constructions, fan blade is fixed on the card of fan chassis, and the flabellum of fan adopts arc structure, drives the fan rotation when alternator shaft rotates and produces air-flow, the heat that produces in the machine operation is discharged, to reach heat radiation.But when using this structure heat radiation, because electric fan is shaped as circular arc, wind-force is little, and it is not fine causing radiating effect; Simultaneously because the close thermal source of fan, particularly rotor main shaft conducts to the generator internal heat retainer ring of fan, the thermal expansion coefficient of plastic material is greater than the thermal expansion coefficient of metal rotating shaft, the bolt joint is asynchronous and loosening because of expanding, produce vibration when causing fan to rotate, influence radiating effect, bigger vibration even can cause fan to come off, the motor lines bag burns because of dispelling the heat.
The model utility content
At the problem that prior art exists, the purpose of this utility model is to provide a kind of 268 logical novel fans of machine generator that are applicable to, can add the wind-force of big fan, improves the tightness that axle connects, and reduces fan vibration, helps improving the radiating effect of fan.
For achieving the above object, the utility model provides a kind of 268 logical novel fans of machine generator, include the fan chassis, the central authorities on this fan chassis are provided with boss, these boss central authorities are provided with axis hole, be provided with fixed hole around this axis hole, fixed hole is provided with the inserts that matches with fixing bolt, evenly be placed with the fan blade of structure unanimity on around the card on this fan chassis, this blade is erected on the fan chassis, and the head end of blade is positioned at the inboard on fan chassis, and the tail end of blade is positioned at the outer on fan chassis, be provided with annular passage between the head end of blade and the boss, the intersection of blade and fan chassis card is that circular arc adds straightway.
Owing to be provided with the air channel of annular between the head end of blade and the boss, can effectively reduce the resistance of wind; Because the intersection of blade and blade and fan chassis card is that circular arc adds straightway, this being configured in when reducing windage also improved wind-force, so effectively raise the radiating effect of fan; And the inserts that matches with fixing bolt that is provided with on the fixed hole has the expansion coefficient identical with fixing bolt, can effectively improve the tightness that fan is connected with rotating shaft.
Further, in order to improve the radiating effect of blade arc section, limit the radius of arc R of blade, the scope of this R is 9mm～19mm.
Further, the wind-force when improving blade rotation reduces windage simultaneously, improves radiating effect, limits head end and the line of tail end and the angle α of blade straightway of blade, and the scope of this angle α is 30 °～50 °.
Further, in order to guarantee the radiating effect of fan, the number that limits fan blade is 3～30.
Adopt the fan of the above structure of the utility model,, can add the wind-force of big fan, improve the tightness that axle connects, reduce the vibration of fan when heat radiation, help improving the radiating effect of fan than tradition 268 logical machine Power generator fans.
Description of drawings
Fig. 1 is the Facad structure schematic representation of the utility model a kind of 268 logical novel fans of machine generator;
Fig. 2 is the structure schematic representation of the utility model a kind of 268 logical novel fans of machine generator;
Fig. 3 is the cross section structure schematic representation of the utility model a kind of 268 logical novel fans of machine generator;
Fig. 4 is the structural representation of the traditional 268 logical novel fans of machine generator.
Embodiment
Below in conjunction with drawings and Examples technical solutions of the utility model are further specified:
As Fig. 1,2, shown in 3, the utility model a kind of 268 logical novel fans of machine generator, include fan chassis 1, the central authorities on this fan chassis are provided with boss 2, boss central authorities are provided with axis hole 3, be provided with fixed hole 4 around the axis hole 3, fixed hole 4 is provided with the inserts 5 that matches with fixing bolt, evenly be placed with the fan blade 6 of structure unanimity on around the card on fan chassis 1, this blade 6 is erected on the fan chassis 1, the head end of blade 6 is positioned at the inboard on fan chassis, and the tail end of blade 6 is positioned at the outer on fan chassis, is provided with annular passage 7 between the head end of blade 6 and the boss 2, blade 6 is that circular arc adds straightway with the intersection of fan chassis 1 card, the scope of radius of arc R is 15mm, and the scope of the angle α of the head end of blade and the line of tail end and blade straightway is 40 °, and the number of fan blade 6 is 20.
Above-described only is preferred implementation of the present utility model; should be understood that; for a person skilled in the art; under the prerequisite that does not break away from the utility model structure; can also make some distortion and improvement; these also should be considered as protection domain of the present utility model, and these can not influence effect and practical applicability that the utility model is implemented.
Claims (4)
1. one kind 268 leads to the novel fan of machine generator, include the fan chassis, the central authorities on described fan chassis are provided with boss, described boss central authorities are provided with axis hole, be provided with fixed hole around the described axis hole, evenly be placed with the fan blade of structure unanimity on around the card on described fan chassis, described blade is erected on the fan chassis, the head end of blade is positioned at the inboard on fan chassis, the tail end of blade is positioned at the outer on fan chassis, it is characterized in that: be provided with annular passage between the head end of described blade and the described boss, the intersection of described blade and fan chassis card is that circular arc adds straightway, and described fixed hole is provided with the inserts that matches with fixing bolt.
2. according to claim 1 a kind of 268 logical machine electric generator type fans, it is characterized in that: the radius of arc of described blade is R, the scope of this R is 9mm～19mm.
3. the according to claim 1 a kind of 268 logical novel fans of machine generator, it is characterized in that: the angle of the head end of described blade and the line of tail end and blade straightway is α, the scope of this angle α is 30 °～50 °.
4. the according to claim 1 a kind of 268 logical novel fans of machine generator, it is characterized in that: the number of described blade is 3～30.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200553702U CN201714688U (en) | 2010-01-14 | 2010-01-14 | Novel fan for 268-type universal generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200553702U CN201714688U (en) | 2010-01-14 | 2010-01-14 | Novel fan for 268-type universal generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201714688U true CN201714688U (en) | 2011-01-19 |
Family
ID=43460684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200553702U Expired - Fee Related CN201714688U (en) | 2010-01-14 | 2010-01-14 | Novel fan for 268-type universal generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201714688U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533759A (en) * | 2014-12-31 | 2015-04-22 | 浙江鸿友压缩机制造有限公司 | Anti-looseness structure for air compressor cooling fan |
| CN107370292A (en) * | 2017-07-31 | 2017-11-21 | 中车唐山机车车辆有限公司 | The cooling device of magneto |
| CN110093889A (en) * | 2018-01-30 | 2019-08-06 | 靖淑华 | Cleaning device |
-
2010
- 2010-01-14 CN CN2010200553702U patent/CN201714688U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533759A (en) * | 2014-12-31 | 2015-04-22 | 浙江鸿友压缩机制造有限公司 | Anti-looseness structure for air compressor cooling fan |
| CN104533759B (en) * | 2014-12-31 | 2017-05-17 | 浙江鸿友压缩机制造有限公司 | Anti-looseness structure for air compressor cooling fan |
| CN107370292A (en) * | 2017-07-31 | 2017-11-21 | 中车唐山机车车辆有限公司 | The cooling device of magneto |
| CN110093889A (en) * | 2018-01-30 | 2019-08-06 | 靖淑华 | Cleaning device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110119 Termination date: 20140114 |