CN103104517A - Negative-pressure fan - Google Patents
Negative-pressure fan Download PDFInfo
- Publication number
- CN103104517A CN103104517A CN2012105363820A CN201210536382A CN103104517A CN 103104517 A CN103104517 A CN 103104517A CN 2012105363820 A CN2012105363820 A CN 2012105363820A CN 201210536382 A CN201210536382 A CN 201210536382A CN 103104517 A CN103104517 A CN 103104517A
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- negative
- filter screen
- pressure air
- air fan
- intake grill
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Abstract
The invention provides a negative-pressure fan. The negative-pressure fan comprises an outer shell, a motor, fan blades and a transmission shaft, wherein the motor and the fan blades are respectively arranged in an air inlet and an air outlet at two ends of the outer shell and are connected through the transmission shaft. The fan blades are driven to rotate by the motor through the transmission shaft, and an effect of negative-pressure air exchange is achieved. A filter screen is arranged on the position of the air inlet of the outer shell. When the fan works, the filter screen is capable of filtering relatively small sundries such as dust and fibers so as to protect the fan blades and the motor from corrosion and further prolong the service life of the negative-pressure fan. Simultaneously a porous structure of the filter screen is capable of relieving intensity and speed of air currents exhausted by the negative-pressure fan, reducing wind cutting noise of the fan blades, and lowering wind cutting resistance of the fan blades so as to prolong the service life of the fan blades.
Description
Technical field
The present invention relates to a kind of negative-pressure air fan, relate in particular to the negative-pressure air fan that a kind of intake grill place is provided with filter screen.
Background technique
Negative-pressure air fan is the principle of utilizing cross-ventilation, negative pressure ventilation, by the subtend of infield---gate or window nature inhale fresh air, simultaneously indoor sultry gas is forced rapidly to discharge outdoor, to reach a kind of machine of cooling and cooling-down effect.Because of it has cost of investment low (disposable input only is the sixth of air-conditioning), air quantity large (ventilation rate can reach 99%), noise is low, power consumption is little (operating cost only for air-conditioning 1/10th), operate steadily, the life-span is long, the efficient high, therefore now utilized by increasing industrial and mineral factory building, it is also the excellent selection that modernization workshop cooling is ventilated.Especially safe, environmental protection, energy-conservation negative-pressure air fan will become the main flow of aeration-cooling equipment Market.
Consult shown in Figure 1, Fig. 1 is the stereogram of existing negative-pressure air fan, existing negative-pressure air fan 6 comprises shell 61, motor 62, flabellum 63 and transmission shaft (not shown), wherein said motor 62 and flabellum 63 lay respectively at shell 61 interior two ends, and be connected by transmission shaft, motor 62 drives flabellum 63 rotations by transmission shaft, reaches the effect of negative pressure ventilation.Existing negative-pressure air fan 6 is provided with venetian blind 65 at its intake grill 611 places, be used for stopping that indoor foreign matter corrodes flabellum and motor by intake grill, but because the distance between venetian blind 65 windows is relatively large, can't stop that at all less foreign matter enters indoor, naturally also just can't avoid less foreign matter from being attached on flabellum and motor after indoor being sucked out, and then affect working efficiency and the working life of negative-pressure air fan.
Summary of the invention
The object of the present invention is to provide a kind of intake grill to be provided with the negative-pressure air fan of filter screen, enter thereby be used for solving foreign matter the problem that the negative-pressure air fan intake grill affects fan page and machine operation.
For achieving the above object, negative-pressure air fan of the present invention comprises: shell, motor, flabellum and transmission shaft, wherein said motor and flabellum lay respectively in the intake grill and exhaust outlet at shell two ends, and are connected by transmission shaft.Motor drives the flabellum rotation by transmission shaft, reaches the effect of negative pressure ventilation.Characteristics of the present invention are that negative-pressure air fan intake grill place is provided with filter screen, when negative-pressure air fan is worked, indoor foreign matter will be stopped by filter screen and can not pass through intake grill, also just can not corrode flabellum and motor, thereby guaranteed that negative-pressure air fan can work steadily in the long term, filter screen can slow down speed and the intensity that indoor air flow is discharged to a certain extent simultaneously, effectively reduce the negative-pressure air fan flabellum the hot-tempered sound of wind cutting, and reduce the wind cutting resistance of negative-pressure air fan flabellum, thereby extended the working life of negative-pressure air fan flabellum.
As a further improvement on the present invention, described filter screen covers whole intake grill.
As a further improvement on the present invention, described filter screen both sides are provided with several block button holes, are fixed in whereby on the relevant position in the shell intake grill outside.
As a further improvement on the present invention, the shape of each grid of described filter screen is identical with size.
As a further improvement on the present invention, the single grid of described filter screen is square, and its size is no more than 10mm.
As a further improvement on the present invention, described filter screen is metal material.
As a further improvement on the present invention, described filter screen is that nylon composite materials is made.
As a further improvement on the present invention, described filter screen also can be fixed in shell intake grill inner side edge.
As a further improvement on the present invention, described filter screen both sides are provided with several block button holes, whereby filter screen are fixed on the relevant position of shell intake grill inboard.
Compared with prior art, the invention has the beneficial effects as follows: sentence filter screen at the negative-pressure air fan intake grill and replace traditional venetian blind.So, in the negative-pressure air fan working procedure, filter screen can filter the less foreign material such as dust, fiber, thereby protection flabellum and motor are not etched, and then extends negative-pressure air fan working life; Slow down simultaneously negative-pressure air fan and discharge intensity and the speed of air-flow, can reduce the hot-tempered sound of wind cutting of flabellum, thereby and the wind cutting resistance that reduces flabellum extend working life of flabellum.
Description of drawings
Fig. 1 is the stereogram of existing negative-pressure air fan;
Fig. 2 is the stereogram of negative-pressure air fan of the present invention.
Fig. 3 is the sectional view of negative-pressure air fan of the present invention.
Embodiment
The present invention is described in detail below in conjunction with each mode of execution shown in the drawings; but should be noted that; these mode of executions are not limitation of the present invention; those of ordinary skills are according to these mode of executions institutes work energy, method or structural equivalent transformation or substitute, within all belonging to protection scope of the present invention.
Consult Fig. 2 and shown in Figure 3, Fig. 2 and Fig. 3 are respectively stereogram and the sectional view of the embodiment of the invention, and negative-pressure air fan 10 of the present invention comprises: shell 1, motor 2, flabellum 3, transmission shaft 4 and filter screen 5.Wherein said motor 2 and flabellum 3 lay respectively in the intake grill 11 and exhaust outlet 12 at shell 1 interior two ends, and are connected by transmission shaft 4.During negative-pressure air fan 10 work, motor 2 drives flabellum 3 rotations by transmission shaft 4, reaches the effect of negative pressure ventilation.
As shown in Figure 2, filter screen 5 involved in the present invention is to be fixed on the square protrusion 111 of shell 1 intake grill 11 external side brims by self square card button hole 51, and with the whole covering of intake grill 11.So; negative-pressure air fan 10 starts; when motor 2 rotation drive flabellums 3 rotate, attract indoor air flow to discharge; the less foreign material such as the dust of described filter screen 5 in can the filter chamber, fiber; prevent that it from passing negative-pressure air fan 10 shell 1 intake grills 11 and entering negative-pressure air fan 10 inside; thereby protected the motor 2 of negative-pressure air fan 10 inside and the infringement that flabellum 3 is avoided these foreign matters, and then extended the working life of negative-pressure air fan 10.Simultaneously, the existence of described filter screen 5 can slow down intensity and speed that negative-pressure air fan 10 when switching on and shutting down (especially) is discharged air-flow, can reduce the hot-tempered sound of wind cutting of flabellum 3, thereby and the wind cutting resistance that reduces flabellum 3 extend working life of flabellum 3.
Further, the shape of the single grid of filter screen 5 involved in the present invention is all identical with size, and in an embodiment of the present invention, described grid is square and size is no more than 10mm.So, the foreign matter that not only can intercept less enters the intake grill 11 of negative-pressure air fan 10, the hot-tempered sound in the time of can also effectively absorbing strong very fast air-flow by intake grill 11.
Further, filter screen 5 involved in the present invention is metal material.
Further, filter screen 5 involved in the present invention is made for nylon composite materials.
Further, filter screen 5 involved in the present invention also can be fixed in shell 1 intake grill 11 inner side edges.
Further, filter screen involved in the present invention 5 both sides are provided with several square card button holes, are snapped in whereby on the complementary protuberance (not shown) of shell 1 intake grill 11 inboards.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and in the situation that do not deviate from spirit of the present invention or essential characteristic, can realize the present invention with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present invention is limited by claims rather than above-mentioned explanation, therefore is intended to include in the present invention dropping on the implication that is equal to important document of claim and all changes in scope.Any reference character in claim should be considered as limit related claim.
In addition, be to be understood that, although this specification is described according to mode of execution, but be not that each mode of execution only comprises an independently technological scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should make specification as a whole, and the technological scheme in each embodiment also can through appropriate combination, form other mode of executions that it will be appreciated by those skilled in the art that.
Claims (10)
1. negative-pressure air fan, comprising: shell, motor, flabellum and transmission shaft, wherein said motor and flabellum lay respectively in the intake grill and exhaust outlet at shell two ends, and are connected by transmission shaft, it is characterized in that: described intake grill place is provided with filter screen.
2. negative-pressure air fan according to claim 1, is characterized in that: the whole intake grill of described filter screen covering.
3. negative-pressure air fan according to claim 2, it is characterized in that: described filter screen is fixed on the outside of shell intake grill.
4. negative-pressure air fan according to claim 3 is characterized in that: described filter screen both sides are provided with the square card button hole that several and the intake grill outside interfix.
5. negative-pressure air fan according to claim 2, it is characterized in that: described filter screen comprises all identical little grids of several shapes and size.
6. negative-pressure air fan according to claim 5, it is characterized in that: the single size of mesh opening of described filter screen is no more than 10mm.
7. negative-pressure air fan according to claim 2, it is characterized in that: described filter screen is that metallic material is made.
8. negative-pressure air fan according to claim 2, it is characterized in that: described filter screen is that nylon composite materials is made.
9. negative-pressure air fan according to claim 1, it is characterized in that: described filter screen is fixed in shell intake grill inner side edge.
10. negative-pressure air fan according to claim 9 is characterized in that: described filter screen both sides are provided with the square card button hole that several and shell intake grill inboard interfix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105363820A CN103104517A (en) | 2012-12-13 | 2012-12-13 | Negative-pressure fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105363820A CN103104517A (en) | 2012-12-13 | 2012-12-13 | Negative-pressure fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103104517A true CN103104517A (en) | 2013-05-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105363820A Pending CN103104517A (en) | 2012-12-13 | 2012-12-13 | Negative-pressure fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103104517A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603818A (en) * | 2013-11-29 | 2014-02-26 | 昆山俊润通风降温设备有限公司 | Negative-pressure fan |
| CN105889092A (en) * | 2016-04-22 | 2016-08-24 | 蚌埠市拓坚机电有限公司 | Dustproof type negative pressure draught fan |
| CN105889093A (en) * | 2016-04-22 | 2016-08-24 | 蚌埠市拓坚机电有限公司 | Automatic dustproof type negative pressure draught fan |
| CN105927562A (en) * | 2016-04-22 | 2016-09-07 | 蚌埠市拓坚机电有限公司 | Automatic cleaning type negative-pressure draught fan |
| CN105952668A (en) * | 2016-04-22 | 2016-09-21 | 蚌埠市拓坚机电有限公司 | Self-cleaning negative-pressure draught fan |
| CN107575422A (en) * | 2017-09-22 | 2018-01-12 | 杭州江南电机股份有限公司 | A kind of disinfection cabinet special fan |
| CN108603516A (en) * | 2016-05-11 | 2018-09-28 | 株式会社电装 | fan cover |
| CN110787541A (en) * | 2019-12-05 | 2020-02-14 | 安徽万山红环保科技有限公司 | Movable dust removal box |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2992701A (en) * | 1959-09-24 | 1961-07-18 | Gen Electric | Filter fan |
| CN2186319Y (en) * | 1994-02-28 | 1994-12-28 | 殷久良 | Flow-over air feeder |
| CN2469227Y (en) * | 2001-02-26 | 2002-01-02 | 吴开超 | Electric fan for ventilation |
| CN2736572Y (en) * | 2004-09-08 | 2005-10-26 | 潘卫荣 | Dust filtering fan |
| CN202108791U (en) * | 2011-03-25 | 2012-01-11 | 富泰净化科技(昆山)有限公司 | Energy-saved thin type purification fan |
-
2012
- 2012-12-13 CN CN2012105363820A patent/CN103104517A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2992701A (en) * | 1959-09-24 | 1961-07-18 | Gen Electric | Filter fan |
| CN2186319Y (en) * | 1994-02-28 | 1994-12-28 | 殷久良 | Flow-over air feeder |
| CN2469227Y (en) * | 2001-02-26 | 2002-01-02 | 吴开超 | Electric fan for ventilation |
| CN2736572Y (en) * | 2004-09-08 | 2005-10-26 | 潘卫荣 | Dust filtering fan |
| CN202108791U (en) * | 2011-03-25 | 2012-01-11 | 富泰净化科技(昆山)有限公司 | Energy-saved thin type purification fan |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603818A (en) * | 2013-11-29 | 2014-02-26 | 昆山俊润通风降温设备有限公司 | Negative-pressure fan |
| CN105952668B (en) * | 2016-04-22 | 2018-05-15 | 蚌埠市拓坚机电有限公司 | A kind of self-cleaning negative-pressure air fan |
| CN105889093A (en) * | 2016-04-22 | 2016-08-24 | 蚌埠市拓坚机电有限公司 | Automatic dustproof type negative pressure draught fan |
| CN105927562A (en) * | 2016-04-22 | 2016-09-07 | 蚌埠市拓坚机电有限公司 | Automatic cleaning type negative-pressure draught fan |
| CN105952668A (en) * | 2016-04-22 | 2016-09-21 | 蚌埠市拓坚机电有限公司 | Self-cleaning negative-pressure draught fan |
| CN105889092A (en) * | 2016-04-22 | 2016-08-24 | 蚌埠市拓坚机电有限公司 | Dustproof type negative pressure draught fan |
| CN105927562B (en) * | 2016-04-22 | 2018-05-15 | 蚌埠市拓坚机电有限公司 | A kind of automatic cleaning type negative-pressure air fan |
| CN105889092B (en) * | 2016-04-22 | 2018-05-15 | 蚌埠市拓坚机电有限公司 | A kind of dust protected negative-pressure air fan |
| CN105889093B (en) * | 2016-04-22 | 2018-05-15 | 蚌埠市拓坚机电有限公司 | A kind of automatic dustproof cleaning type negative-pressure air fan |
| CN108603516A (en) * | 2016-05-11 | 2018-09-28 | 株式会社电装 | fan cover |
| US11009042B2 (en) | 2016-05-11 | 2021-05-18 | Denso Corporation | Fan shroud |
| CN107575422A (en) * | 2017-09-22 | 2018-01-12 | 杭州江南电机股份有限公司 | A kind of disinfection cabinet special fan |
| CN110787541A (en) * | 2019-12-05 | 2020-02-14 | 安徽万山红环保科技有限公司 | Movable dust removal box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | 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: 20130515 |