CN203404141U - Protective net hood of fan - Google Patents
Protective net hood of fan Download PDFInfo
- Publication number
- CN203404141U CN203404141U CN201320411079.8U CN201320411079U CN203404141U CN 203404141 U CN203404141 U CN 203404141U CN 201320411079 U CN201320411079 U CN 201320411079U CN 203404141 U CN203404141 U CN 203404141U
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- Prior art keywords
- rib
- ribs
- central part
- radial
- protective net
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Abstract
The utility model provides a protective net hood of a fan. The protective net hood comprises a center part, a frame arranged around the center part, and a periphery part arranged between the center part and the frame. The periphery part comprises a plurality of external sealing ribs and a plurality of rotary ribs connected with the external sealing ribs, the external sealing ribs are sequentially arranged between the frame and the center part in a concentric mode, and the rotary ribs are arranged around the center part in a radial shape. According to the protective net hood of the fan, the rotation direction of the rotary ribs arranged on the periphery part is consistent with the rotation direction of blades of the fan, airflow resistance can be reduced, and therefore the purposes of increasing air volume and lowering noise are achieved.
Description
Technical field
The utility model relates to fan art, relates in particular to a kind of for being arranged on fan outlet with the fan protective net cover of protection impeller.
Background technique
At present, at the exhaust outlet place of fan, fan protective net cover can be set conventionally and with the impeller to fan, protect.As shown in Figure 1, existing fan protective net cover generally comprises center plate 11, a plurality of sealing rib 12, a plurality of radial rib 13 and a plurality of analog bracket 14.Described center plate 11 is arranged on the central position of fan protective net cover, described a plurality of sealing rib 12 starts to be successively towards outside arranged concentric from center plate 11, described a plurality of radial rib 13 is along radial arrangement so that described a plurality of sealing ribs 12 are connected to each other, and described a plurality of analog brackets 14 form to fan protective net cover is fixed by screw along outermost sealing rib 12.Wherein, radial rib 13 intersects vertically with sealing rib 12, and the elongation line of radial rib 13 finally converges at fan protective net Zhao center, and the flow resistance that the shortcoming of this kind of structure is air-flow is larger, larger on the impact of air quantity and noise.
Model utility content
Main purpose of the present utility model is to provide a kind of fan protective net cover, is intended to reduce the flow resistance of air-flow in fan running and the noise that flows and cause, to improve air quantity and to reduce operation noise.
To achieve these goals, the utility model provides a kind of fan protective net cover, comprise central part, the framework and the outer part between described central part and framework that around described central part, arrange, described outer part comprises a plurality of outside sealing ribs and a plurality of rotation ribs that are connected with described a plurality of outside sealing ribs, described a plurality of outside sealing rib is arranged concentric successively between described framework and central part, and described a plurality of rotation ribs are radial arrangement at described central part around.
Preferably, described a plurality of rotation rib comprises a plurality of main rotation ribs and a plurality of auxiliary rotation rib, the outer rim that rib and central part are sealed in described main rotation rib connecting frame, all outsides, the outside sealing of the part rib of described auxiliary rotation rib connecting frame and all outside sealing ribs or only connecting frame and close described framework, and described auxiliary rotation rib is not connected with the outer rim of central part.
Preferably, described main rotation rib and auxiliary rotation rib are along the circumferential direction set in distance, and described outside sealing rib is all ring.
Preferably, the vane rotary direction of the sense of rotation of described main rotation rib and fan is consistent, and described main rotation rib with through between the center of central part and the inner radial line of main rotation rib, become 20 ~ 70 angle simultaneously.
Preferably, described outer part also comprises the semiclosed rib of a plurality of arcs, and described a plurality of semiclosed ribs are arranged concentric successively between described framework and outermost outside sealing rib, and are connected with partial rotation rib.
Preferably, described central part comprises a plurality of enclose inside ribs and a plurality of radial ribs that are connected with described a plurality of enclose inside ribs, described a plurality of enclose inside rib is arranged concentric successively by the center of described central part to outside, described a plurality of radial ribs are radial arrangement around the center of described central part.
Preferably, described enclose inside rib and radial rib are provided with wind-guiding fillet on windward side.
Preferably, described a plurality of radial ribs comprise a plurality of main radial ribs and a plurality of auxiliary radial rib, and described main radial rib connects all enclose inside ribs, and described auxiliary radial rib is only connected a part of enclose inside rib near central part outer rim.
Preferably, described a plurality of enclose inside ribs are all ring, and described main radial rib and auxiliary radial rib are along the circumferential direction set in distance.
Preferably, described frame shape becomes the external frame of fan protection net, and described framework comprises a straight flange and an arc-shaped side, and the outside of described framework is formed with three analog brackets that are triangularly arranged.
In fan protective net cover of the present utility model, by rotation rib is set at outer part, and it is consistent to make to rotate the sense of rotation of the deflection direction of rib and the impeller of fan, can reduce the resistance of air-flow, thereby realize the object that promotes air quantity and reduce noise.
Accompanying drawing explanation
Fig. 1 is the structural representation of an existing fan protective net cover.
Fig. 2 is the structural representation of the utility model fan protective net cover one preferred embodiment.
Fig. 3 is the enlarged view of the central part of fan protective net cover shown in Fig. 2.
The realization of the utility model object, functional characteristics and advantage, in connection with embodiment, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figures 2 and 3, be a preferred embodiment of the utility model fan protective net cover.
This fan protective net cover comprises central part 20, the framework 21 and the outer part 22 between described central part 20 and framework 21 that around described central part 20, arrange.
As shown in Figure 2, described central part 20 is whole rounded, comprises a plurality of enclose inside ribs 201 and a plurality of radial ribs 202 that are connected with described a plurality of enclose inside ribs 201.Described a plurality of enclose inside rib 201 is all ring, and to outside, is successively arranged concentric by described central part 20 center, and described a plurality of radial ribs 202 are radial arrangement around described central part 20 center.The main object that arranges of described central part 20 is to guarantee electrical safety requirement, and to prevent the motor shaft of people's finger contact fan, so the interval between each adjacent inner sealing rib 201 is arranged to not allow people's finger to pass through.In the utility model, " radial rib " refers to the rib radially extending along fan protective net cover, and the elongation line of radial rib finally converges at central part 20 center.Described enclose inside rib 201 and radial rib 202 are provided with wind-guiding fillet on windward side, to reduce the resistance of air-flow.
Described a plurality of radial rib 202 comprises a plurality of main radial ribs 203 and a plurality of auxiliary radial rib 204, and described main radial rib 203 and auxiliary radial rib 204 are along the circumferential direction set in distance.Described main radial rib 203 connects all enclose inside ribs 201, and described auxiliary radial rib 204 is only connected a part of enclose inside rib 201 near central part 20 outer rims.
As shown in Figure 2, described framework 21 forms the external frame of fan protective net cover, and it comprises a straight flange 211 and an arc-shaped side 212.
Described outer part 22 comprises a plurality of outside sealing ribs 221 and a plurality of rotation ribs 222 that are connected with described a plurality of outside sealing ribs 221.Described outside sealing rib 221 is all ring, and is successively arranged concentric between described framework 21 and central part 20, and described a plurality of rotation ribs 222 are radial arrangement at described central part 20 around.In the utility model, " rotation rib " refers to the rib of the vane rotary direction extension of being partial to from inside to outside fan, rotate rib and between process central part 20 center and the inner radial line of rotation rib, become predetermined angle simultaneously, angle " α ", " β " as shown in Figure 2, the elongation line that rotates rib finally can not converge at central part 20 center.
Described a plurality of rotation rib 222 comprises a plurality of main rotation ribs 223 and a plurality of auxiliary rotation rib 224, and described main rotation rib 223 and auxiliary rotation rib 224 are along the circumferential direction set in distance.The outer rim that rib 221 and central part 20 are sealed in described main rotation rib 223 connecting frames 21, all outsides.Wherein, the vane rotary direction of the sense of rotation of main rotation rib 223 and fan is consistent, main rotation rib 223 is with simultaneously through becoming the angle of 20 ° ~ 70 ° between central part 20 center and the inner radial line of main rotation rib 223, and in Fig. 2, angle " α " is 20 ° ~ 70 °.
Described auxiliary rotation rib 224 connecting frames 21 and all outside sealing ribs 221, and be not connected with the outer rim of central part 20.Described auxiliary rotation rib 224 can also be connecting frame 21 and near the outside sealing of the part of described framework 21 rib 221 only.
Described outer part 22 also comprises a plurality of curved semiclosed ribs 225, and described a plurality of semiclosed ribs 225 are arranged concentric successively between described framework 21 and outermost outside sealing rib 221, and are connected with partial rotation rib 222.
In addition, the outside of described framework 21 is formed with three analog brackets 23 that are triangularly arranged, to fan protective net cover is fixed.
In said fans protection net, by rotation rib is set at outer part, and it is consistent to make to rotate the sense of rotation of the deflection direction of rib and the impeller of fan, can reduce the resistance of air-flow, thereby realize the object that promotes air quantity and reduce noise.
The utility model is not limited to above mode of execution, under the disclosed technology contents of above-mentioned mode of execution, can also carry out various variations.Every equivalent structure transformation that utilizes the utility model specification and accompanying drawing content to do, or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. a fan protective net cover, comprise central part, the framework and the outer part between described central part and framework that around described central part, arrange, it is characterized in that, described outer part comprises a plurality of outside sealing ribs and a plurality of rotation ribs that are connected with described a plurality of outside sealing ribs, described a plurality of outside sealing rib is arranged concentric successively between described framework and central part, and described a plurality of rotation ribs are radial arrangement at described central part around.
2. fan protective net cover as claimed in claim 1, it is characterized in that, described a plurality of rotation rib comprises a plurality of main rotation ribs and a plurality of auxiliary rotation rib, the outer rim that rib and central part are sealed in described main rotation rib connecting frame, all outsides, the outside sealing of the part rib of described auxiliary rotation rib connecting frame and all outside sealing ribs or only connecting frame and close described framework, and described auxiliary rotation rib is not connected with the outer rim of central part.
3. fan protective net cover as claimed in claim 2, is characterized in that, described main rotation rib and auxiliary rotation rib are along the circumferential direction set in distance, and described outside sealing rib is all ring.
4. fan protective net cover as claimed in claim 2, it is characterized in that, the vane rotary direction of the sense of rotation of described main rotation rib and fan is consistent, and described main rotation rib with through between the center of central part and the inner radial line of main rotation rib, become 20 ~ 70 angle simultaneously.
5. fan protective net cover as claimed in claim 1, it is characterized in that, described outer part also comprises the semiclosed rib of a plurality of arcs, and described a plurality of semiclosed ribs are arranged concentric successively between described framework and outermost outside sealing rib, and are connected with partial rotation rib.
6. fan protective net cover as claimed in claim 1, it is characterized in that, described central part comprises a plurality of enclose inside ribs and a plurality of radial ribs that are connected with described a plurality of enclose inside ribs, described a plurality of enclose inside rib is arranged concentric successively by the center of described central part to outside, described a plurality of radial ribs are radial arrangement around the center of described central part.
7. fan protective net cover as claimed in claim 6, is characterized in that, described enclose inside rib and radial rib are provided with wind-guiding fillet on windward side.
8. fan protective net cover as claimed in claim 6, it is characterized in that, described a plurality of radial rib comprises a plurality of main radial ribs and a plurality of auxiliary radial rib, and described main radial rib connects all enclose inside ribs, and described auxiliary radial rib is only connected a part of enclose inside rib near central part outer rim.
9. fan protective net cover as claimed in claim 8, is characterized in that, described a plurality of enclose inside ribs are all ring, and described main radial rib and auxiliary radial rib are along the circumferential direction set in distance.
10. fan protective net cover as claimed in claim 1, is characterized in that, described frame shape becomes the external frame of fan protection net, and described framework comprises a straight flange and an arc-shaped side, and the outside of described framework is formed with three analog brackets that are triangularly arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320411079.8U CN203404141U (en) | 2013-07-10 | 2013-07-10 | Protective net hood of fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320411079.8U CN203404141U (en) | 2013-07-10 | 2013-07-10 | Protective net hood of fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203404141U true CN203404141U (en) | 2014-01-22 |
Family
ID=49940079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320411079.8U Expired - Lifetime CN203404141U (en) | 2013-07-10 | 2013-07-10 | Protective net hood of fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203404141U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104976158A (en) * | 2014-04-09 | 2015-10-14 | 珠海格力电器股份有限公司 | Fan with cooling device |
| CN108401402A (en) * | 2018-03-30 | 2018-08-14 | 四川斐讯信息技术有限公司 | A kind of multistage air-cooled radiating device |
| CN110118201A (en) * | 2018-02-07 | 2019-08-13 | 广东美的环境电器制造有限公司 | A kind of fan |
-
2013
- 2013-07-10 CN CN201320411079.8U patent/CN203404141U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104976158A (en) * | 2014-04-09 | 2015-10-14 | 珠海格力电器股份有限公司 | Fan with cooling device |
| CN110118201A (en) * | 2018-02-07 | 2019-08-13 | 广东美的环境电器制造有限公司 | A kind of fan |
| CN108401402A (en) * | 2018-03-30 | 2018-08-14 | 四川斐讯信息技术有限公司 | A kind of multistage air-cooled radiating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140122 |