CN102865238A - Negative-pressure fan - Google Patents
Negative-pressure fan Download PDFInfo
- Publication number
- CN102865238A CN102865238A CN 201210378484 CN201210378484A CN102865238A CN 102865238 A CN102865238 A CN 102865238A CN 201210378484 CN201210378484 CN 201210378484 CN 201210378484 A CN201210378484 A CN 201210378484A CN 102865238 A CN102865238 A CN 102865238A
- Authority
- CN
- China
- Prior art keywords
- negative
- fan blade
- pressure air
- blinds
- motor
- 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.)
- Pending
Links
Images
Landscapes
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Blinds (AREA)
Abstract
The invention provides a negative-pressure fan which comprises louvers, a protective screen, blades, a motor, a transmission belt and a support. The louvers are arranged on one surface of a shell combination, the protective screen is arranged on another surface of the shell combination, the blades are arranged on a blade axle between the louvers and the protective screen, the motor is disposed at the top corner of the shell, the motor is connected with the blade axle by the transmission belt, and the support is arranged between an upper shell and a lower shell and is I-shaped. According to the technical scheme, the negative-pressure fan has the advantages of low noise and high air outlet volume.
Description
Technical field
The invention belongs to apparatus of air conditioning field, especially relate to a kind of negative-pressure air fan.
Background technique
Negative-pressure air fan is as a kind of ventilation equipment, and the cross-ventilation in the energy Effective Raise factory building improves the effect that the factory building cooling is ventilated.The structure of negative-pressure air fan generally includes housing, motor, electric machine support, fan blade, iron net and blinds etc.
In the prior art, the support that connects motor is the T font that is converted into iron sheet, and motor straight is connected on the T-shaped support, and support and shell are fixed with 6 screws, thus shake easily when moving and also noise large.And therefore this structure has increased windage because the cross section of support is larger, has reduced the air output of negative-pressure air fan, has reduced the working efficiency of negative-pressure air fan.
Therefore, it is little that those skilled in the art is devoted to develop a kind of noise, and the large negative-pressure air fan of air output.
Summary of the invention
The problem to be solved in the present invention provides a kind of negative-pressure air fan, and especially a kind of vibration is little, noise is little, and the large negative-pressure air fan of air output.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of negative-pressure air fan, comprise blinds, protective net, fan blade, motor, drivign belt and support, described blinds is arranged on the one side of housing, described protective net is arranged at the another side of housing, described fan blade is arranged on the fan blade wheel shaft between blinds and the protective net, described motor is arranged at the drift angle place of housing, described motor is connected wheel shaft and is connected by drivign belt with fan blade, described support is arranged between the upper-lower casing, and described support is 1 font.
Further, described blinds is power-operated shutter, and blinds can automatic on-off, reaches effect dustproof, waterproof.
Further, larger for making air quantity, described fan blade is the wing blade axial-flow leaf.
Further, for improving working life, described fan blade is made for strengthening nylon material.
Further, for guaranteeing to use safety, described protective net designs for grid shape.
Advantage and good effect that the present invention has are: owing to adopt technique scheme, noise of the present invention is little and air output is large.
Description of drawings
Fig. 1 is structural representation of the present invention
Embodiment
As shown in Figure 1, the invention provides a kind of negative-pressure air fan, comprise blinds 1, protective net 2, fan blade 3, motor 4, drivign belt 5 and support 6, described blinds 1 is arranged on the one side of housing, described protective net 2 is arranged at the another side of housing, described fan blade is arranged on the fan blade wheel shaft between blinds 1 and the protective net 2, described motor 4 is arranged at the drift angle place of housing, the wheel shaft that described motor 4 is connected with fan blade connects by drivign belt 5, described support 6 is arranged between the upper-lower casing, described support 6 is 1 font.
Further, described blinds 1 is power-operated shutter, and blinds can automatic on-off, reaches effect dustproof, waterproof.
Further, larger for making air quantity, described fan blade 3 is the wing blade axial-flow leaf.
Further, for improving working life, described fan blade 3 is made for strengthening nylon material.
Further, for guaranteeing to use safety, described protective net 2 designs for grid shape.
The working principle of this example: steady power negative-pressure air fan has adopted fan blade of new generation, use the aeration-cooling principle of cross-ventilation, negative pressure ventilation, with superpower suction, the rapid inhale fresh air of subtend, gate or window by the installing place, with indoor hot gas, peculiar smell, promptly discharge outdoor, because suction function flows into fresh air naturally, it is identical with outdoor temperature that room temperature can be low to moderate.
Use after the negative pressure type induced draft fan, can allow Air Flow, per hour rate of ventilation can reach (10m2 factory building) 60 times, for you create smooth, the with fresh air comfortable working environment that ventilates, promotes working efficiency, makes each worker more healthy.
More than one embodiment of the present of invention are had been described in detail, but described content only is preferred embodiment of the present invention, can not be considered to be used to limiting practical range of the present invention.All equalizations of doing according to the present patent application scope change and improve etc., all should still belong within the patent covering scope of the present invention.
Claims (5)
1. negative-pressure air fan, it is characterized in that: comprise blinds (1), protective net (2), fan blade (3), motor (4), drivign belt (5) and support (6), described blinds (1) is arranged on the one side of housing, described protective net (2) is arranged at the another side of housing, described fan blade is arranged on the fan blade wheel shaft between blinds (1) and the protective net (2), described motor (4) is arranged at the drift angle place of housing, described motor (4) is connected 3 with fan blade) wheel shaft connect by drivign belt (5), described support (6) is arranged between the upper-lower casing, and described support (6) is 1 font.
2. negative-pressure air fan according to claim 1, it is characterized in that: described blinds (1) is power-operated shutter.
3. negative-pressure air fan according to claim 1, it is characterized in that: described fan blade (3) is the wing blade axial-flow leaf.
4. negative-pressure air fan according to claim 1 is characterized in that: described fan blade (3) is made for strengthening nylon material.
5. negative-pressure air fan according to claim 1, it is characterized in that: described protective net (2) designs for grid shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210378484 CN102865238A (en) | 2012-10-08 | 2012-10-08 | Negative-pressure fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210378484 CN102865238A (en) | 2012-10-08 | 2012-10-08 | Negative-pressure fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102865238A true CN102865238A (en) | 2013-01-09 |
Family
ID=47444304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210378484 Pending CN102865238A (en) | 2012-10-08 | 2012-10-08 | Negative-pressure fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102865238A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840537A (en) * | 2016-05-05 | 2016-08-10 | 杨志恒 | Draught fan special for flower planting |
| CN108149731A (en) * | 2018-01-25 | 2018-06-12 | 谢远平 | A kind of dredging device for water conservancy projects |
-
2012
- 2012-10-08 CN CN 201210378484 patent/CN102865238A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840537A (en) * | 2016-05-05 | 2016-08-10 | 杨志恒 | Draught fan special for flower planting |
| CN108149731A (en) * | 2018-01-25 | 2018-06-12 | 谢远平 | A kind of dredging device for water conservancy projects |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203964179U (en) | Utilize the air-conditioner of outdoor fan ventilation | |
| MY187653A (en) | Air conditioner | |
| CN103104517A (en) | Negative-pressure fan | |
| CN102865238A (en) | Negative-pressure fan | |
| CN105352101A (en) | Indoor air ventilation device based on Coanda Effect | |
| CN202628611U (en) | Cooling fan of air conditioner outdoor unit | |
| CN201868810U (en) | Radiating type distribution box | |
| CN202867284U (en) | Negative pressure draught fan | |
| CN204680949U (en) | A kind of air-conditioning is in conjunction with the prefabricated cabin radiator structure of discrete type blower fan | |
| CN202251129U (en) | Novel noise-reduction air exhaust slot | |
| CN203964170U (en) | The indoor apparatus of air conditioner of a kind of two ends air intake | |
| CN108286785A (en) | Air-conditioner wind spreading cover | |
| CN108800385B (en) | Air conditioner cooling system based on building body structure | |
| CN207268000U (en) | A kind of high efficiency and heat radiation excavator | |
| CN206478739U (en) | A kind of ducting assembly | |
| CN202416357U (en) | Self-exhausting cable connector well | |
| CN205559368U (en) | Heat preservation fan | |
| CN105509275A (en) | Electric wireless remote-control air-supplying opening with variable air volume | |
| CN204100423U (en) | A kind of dehumidifying of the ventilation for toilet total heat recovery formula cold air all-in-one | |
| CN205260438U (en) | Wet dedusting explosion -proof fan | |
| CN205533379U (en) | Can accelerate controller of counter -rotating fan gas flow rate | |
| CN204755356U (en) | Ventilation blower for artificial fur | |
| CN202713126U (en) | Frequency converter chamber ventilation structure | |
| CN204227589U (en) | With the wind source heat pump cold and warm air heating radiator of new wind function | |
| CN204165194U (en) | Electric wireless remote-control variable air rate air outlet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130109 |