CN103615397A - Negative pressure draught fan - Google Patents
Negative pressure draught fan Download PDFInfo
- Publication number
- CN103615397A CN103615397A CN201310626709.8A CN201310626709A CN103615397A CN 103615397 A CN103615397 A CN 103615397A CN 201310626709 A CN201310626709 A CN 201310626709A CN 103615397 A CN103615397 A CN 103615397A
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- Prior art keywords
- fan
- air
- negative
- pressure air
- blower
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Abstract
The invention discloses a negative pressure draught fan. The negative pressure draught fan at least comprises a fan base and an air outlet frame, wherein an air inlet channel is formed in the periphery of the bottom of the fan base, and the air outlet frame is installed on the fan base and comprises a circle of narrow wall gap to form an air outlet channel. According to the negative pressure draught fan, not only is a traditional design structure of fan blades omitted, but also the negative pressure draught fan has better cooling and ventilating effects.
Description
Technical field
The present invention relates to a kind of negative-pressure air fan, particularly relate to a kind of negative-pressure air fan without flabellum.
Background technique
Negative-pressure air fan is the principle of utilizing cross-ventilation, negative pressure ventilation, for example, by subtend (, gate or the window) inhale fresh air of infield, indoor sultry gas is forced outside discharge chamber rapidly simultaneously, thereby is reached the device of cooling and cooling-down effect.Compare with general air-conditioning, negative-pressure air fan has the advantages such as cost is low, air quantity is large, noise is little, energy consumption is low, operate steadily, the life-span is long, efficiency is high, therefore by increasing industrial and mineral factory building, is utilized, and is the optimal selection that the cooling of modernization workshop is ventilated.
Refer to shown in Fig. 1, Fig. 1 is the sectional view of a kind of negative-pressure air fan 6 of prior art, negative-pressure air fan 6 as shown in the figure comprise shell 61, the motor 62 of shell 61 interior one end, the flabellum 63 of the shell 61 interior the other ends and be connected to motor 62 and flabellum 63 between transmission shaft 64.When negative-pressure air fan 6 work, motor 62 starts, and drives transmission shaft 64 and 63 rotations of connected flabellum, thereby reaches the effect of negative pressure ventilation.
Due to the flabellum 63 of negative-pressure air fan 6 High Rotation Speed in the course of the work, if there is small article to enter in the shell 61 of negative-pressure air fan 6, this is easy to cause flabellum 63 to damage, and flabellum 63 itself is easy to pile up dust, as cleaned not in time, be easy to affect the ventilation effect of negative-pressure air fan 6.
How to provide a kind of negative-pressure air fan without flabellum to become industry problem demanding prompt solution.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of negative-pressure air fan without flabellum.
For addressing the above problem, the invention provides a kind of negative-pressure air fan, it comprises fan base and is arranged on the air-out framework on described fan base.
The bottom periphery of described fan base is provided with air intake passage, and on described air-out framework, comprises that wall gap that a circle is narrow is to form air-out passage.Wherein, air-out framework further comprises front shroud and back cover, and the air-out passage of described front shroud below also comprises filter screen for intercepting foreign material, is installed in the annular ring on fan base top and is installed in the motor in fan base.
Further, described motor below is provided with fan blade, and described fan blade outside comprises blade cover.Described fan blade and blade cover are further installed in blower, the further sheathed blower cover in described blower below, and described blower and described blower cover are fixedly arranged on fan base by a plurality of shockproof pin and a plurality of quakeproof bracket in the lump.
The drawback that adopts negative-pressure air fan of the present invention can avoid the flabellum of conventional negative pressure fan easily to pile up dust.
Accompanying drawing explanation
Below, by the description in conjunction with its accompanying drawing to some embodiments of the present invention, can further understand object of the present invention, concrete structure identity and advantage.
Figure 1 shows that the sectional view of the negative-pressure air fan of prior art; And
Figure 2 shows that the structural representation of the negative-pressure air fan of one embodiment of the invention;
Figure 3 shows that the STRUCTURE DECOMPOSITION schematic diagram of air-out framework of the negative-pressure air fan of one embodiment of the invention; And
Figure 4 shows that the STRUCTURE DECOMPOSITION schematic diagram of fan base of the negative-pressure air fan of one embodiment of the invention.
Embodiment
To embodiments of the invention be provided to detailed reference below.Although the present invention is set forth and illustrated by these mode of executions, it should be noted that the present invention is not merely confined to these mode of executions.On the contrary, all substitutes, variant and the equivalent in the defined invention spirit of claims and invention scope contained in the present invention.
In addition, for better explanation the present invention, in embodiment below, provided numerous details.It will be appreciated by those skilled in the art that and there is no these details, the present invention can implement equally.In other example, the method for knowing for everybody, means, element and circuit are not described in detail, so that highlight purport of the present invention.
Figure 2 shows that the structural representation of the negative-pressure air fan 2 of one embodiment of the invention.As shown in the figure, the negative-pressure air fan 2 of the present embodiment comprises fan base 20 and is arranged on the air-out framework 30 on fan base 20.Wherein, fan base 20 bottom periphery are provided with air intake passage 21.On air-out framework 30, comprise that wall gap that a circle is narrow is to form air-out passage 31.
Shown in Fig. 3, air-out framework 30 further comprises front shroud 32 and back cover 33.Wherein, air-out passage 31 belows of front shroud 32 also comprise: for intercepting the filter screen 34 of foreign material, be installed in the annular ring 35 on fan base 20 tops and be installed in the motor 36 in fan base 20.
Incorporated by reference to shown in Fig. 4, described motor 36 belows are provided with fan blade 24 again, and described fan blade 24 outsides comprise blade cover 25.Described fan blade 24 and blade cover 25 are further installed in blower 26, the described blower 26 further sheathed blower covers 27 in below, described blower 26 is fixedly arranged on fan base 20 by a plurality of shockproof pin 22 and a plurality of quakeproof bracket 23 in the lump with described blower cover 26.
When opening negative-pressure air fan 2 of the present invention, by fan blade 24, by air, the air intake passage 21 by fan base 20 sucks for it, then air is imported to annular air-out framework 30, by the air-out passage 31 of air-out framework 30, blown out, and then drive surrounding atmosphere to produce stable distinguished and admirable of high speed.
Negative-pressure air fan 2 of the present invention can suck air from the air intake passage 21 of fan base 20 bottoms, enter after air-out framework 30 expands, again by the powerful jet-stream wind of air-out passage 31 ejection, fan leaf type negative-pressure air fan compared to prior art, not only omit the traditional design structure of flabellum, and there is better cooling ventilation effect.
Wording and expression in this use are all illustrative rather than definitive thereof, use these wording and do not express any equivalent of the identity in this diagram and description or part equivalent are discharged outside invention scope, may have various modifications within the scope of the claims.Other modification, variant and substitute also may exist.Therefore, claim is intended to contain all these type of equivalents.
Claims (5)
1. a negative-pressure air fan, is characterized in that, described negative-pressure air fan at least comprises:
Fan base, the bottom periphery of described fan base is provided with air intake passage;
Air-out framework, described air-out framework is arranged on described fan base, and on described air-out framework, comprises that wall gap that a circle is narrow is to form air-out passage.
2. negative-pressure air fan according to claim 1, is characterized in that, described air-out framework further comprises front shroud and back cover.
3. negative-pressure air fan according to claim 2, is characterized in that, the air-out passage below of described front shroud also comprises:
Filter screen, for intercepting the filter screen of foreign material;
Annular ring, annular ring is installed in fan base top; And
Motor, described motor is installed in fan base.
4. negative-pressure air fan according to claim 3, it is characterized in that, described motor below is provided with fan blade, and described fan blade outside comprises blade cover, and described fan blade and blade cover are further installed in blower, the further sheathed blower cover in described blower below.
5. negative-pressure air fan according to claim 4, is characterized in that, described blower and described blower cover are fixedly arranged on fan base by a plurality of shockproof pin and a plurality of quakeproof bracket in the lump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310626709.8A CN103615397A (en) | 2013-12-02 | 2013-12-02 | Negative pressure draught fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310626709.8A CN103615397A (en) | 2013-12-02 | 2013-12-02 | Negative pressure draught fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103615397A true CN103615397A (en) | 2014-03-05 |
Family
ID=50166111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310626709.8A Pending CN103615397A (en) | 2013-12-02 | 2013-12-02 | Negative pressure draught fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103615397A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101424278A (en) * | 2007-09-04 | 2009-05-06 | 戴森技术有限公司 | Fan |
| CN102200147A (en) * | 2010-03-23 | 2011-09-28 | 戴森技术有限公司 | Fan |
| CN202100538U (en) * | 2011-06-23 | 2012-01-04 | 周云飞 | Bladeless fan |
| CN202187935U (en) * | 2011-07-12 | 2012-04-11 | 蔡炳照 | Mounting structure of bladeless electric fan power device |
| CN102454644A (en) * | 2010-10-18 | 2012-05-16 | 戴森技术有限公司 | Fan assembly |
| CN202418057U (en) * | 2011-12-19 | 2012-09-05 | 瞿勇 | Bladeless fan |
| CN202833343U (en) * | 2012-07-24 | 2013-03-27 | 胡积献 | Aromatherapy bladeless fan |
| GB2502106A (en) * | 2012-05-16 | 2013-11-20 | Dyson Technology Ltd | Bladeless fan |
-
2013
- 2013-12-02 CN CN201310626709.8A patent/CN103615397A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101424278A (en) * | 2007-09-04 | 2009-05-06 | 戴森技术有限公司 | Fan |
| CN102200147A (en) * | 2010-03-23 | 2011-09-28 | 戴森技术有限公司 | Fan |
| CN102454644A (en) * | 2010-10-18 | 2012-05-16 | 戴森技术有限公司 | Fan assembly |
| CN202100538U (en) * | 2011-06-23 | 2012-01-04 | 周云飞 | Bladeless fan |
| CN202187935U (en) * | 2011-07-12 | 2012-04-11 | 蔡炳照 | Mounting structure of bladeless electric fan power device |
| CN202418057U (en) * | 2011-12-19 | 2012-09-05 | 瞿勇 | Bladeless fan |
| GB2502106A (en) * | 2012-05-16 | 2013-11-20 | Dyson Technology Ltd | Bladeless fan |
| CN202833343U (en) * | 2012-07-24 | 2013-03-27 | 胡积献 | Aromatherapy bladeless fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140305 |