CN201723466U - Negative pressure fan with high air suction efficiency - Google Patents
Negative pressure fan with high air suction efficiency Download PDFInfo
- Publication number
- CN201723466U CN201723466U CN2010201989441U CN201020198944U CN201723466U CN 201723466 U CN201723466 U CN 201723466U CN 2010201989441 U CN2010201989441 U CN 2010201989441U CN 201020198944 U CN201020198944 U CN 201020198944U CN 201723466 U CN201723466 U CN 201723466U
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- belt
- impeller
- pressure air
- air fan
- motor
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- Expired - Fee Related
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Abstract
The utility model relates to a negative pressure fan with high air suction efficiency, which comprises an electric motor (1), an impeller (2) and a casing (3), wherein the electric motor (1) is arranged on the side corner of the casing (3), the impeller (2) is arranged at the middle part of the casing (3), a transmission mechanism comprises belt wheels (51) and (52) and a belt structure (5), the belt wheels (51) and (52) are respectively arranged at an impeller base (4) and the output shaft of the electric motor, the belt structure (5) is connected between the two wheels (51) and (52), and belts are V-shaped transmission belts. The diameter of the belt wheel (52) connected with the impeller base (4) is greater than that of the belt wheel (51) connected with the output shaft of the electric motor (1). The tightness of the transmission belt can be regulated through screw bolts. An air outlet of the casing is provided with a shutter (7), and an air inlet is provided with a protective screen cover (8). The utility model improves the transmission efficiency, and saves energy and electricity, and in addition, the installation structure is more reasonable, and the air suction efficiency is higher.
Description
Technical field
The utility model relates to a kind of industrial premises ventilation equipment, especially relates to the high negative-pressure air fan of a kind of exhausting efficient.
Background technique
Negative-pressure air fan is the latest type of ventilator, belongs to axial-flow blower, is referred to as negative-pressure air fan because being mainly used in the aeration-cooling engineering of negative pressure type.The aeration-cooling engineering of negative pressure type comprises the implication of the ventilation and two aspects that lower the temperature, and ventilation and cooling problem solve simultaneously.Solve and ventilate and cooling, will have characteristics such as super large air channel, super large fan blade diameter, super large exhaust air rate by the negate pressure fan, the motor power (output) that is installed on the impeller shaft also should be relatively large, this has determined that also negative-pressure air fan is bulky, heavy, energy consumption is high, in case size design is less than normal or motor power (output) is not enough, negative-pressure air fan will be little owing to air quantity, noise is big, the exhausting inefficiency has lost the meaning as negative-pressure air fan.
The model utility content
The purpose of this utility model is to overcome deficiency of the prior art, and a kind of moderate dimensions, energy-conservation is provided, and the high negative-pressure air fan of exhausting efficient.
For solving the problems of the technologies described above, the technical solution of the utility model is: the high negative-pressure air fan of a kind of exhausting efficient, comprise motor, impeller and housing, and described motor mounting is in the housing corner, impeller is located at the middle part of housing, and motor is by the rotation of driving mechanism impeller.
Described driving mechanism is to be installed in the belt pulley of impeller base and motor output shaft and to be connected in belt composition between the belt pulley.
The described diameter pulley that is connected with the impeller base is greater than the belt pulley that is connected with motor output shaft, and is rational in infrastructure.
Described belt is the V-type driving belt.
Described driving belt is by its tightness of bolt can regulate, and tensioning is regulated simple, need not to dismantle other parts.
Described housing exhaust outlet is provided with blinds, and intake grill is provided with protection net, plays windproof, dustproof, rainproof effect.
Compared with prior art, the utility model is owing to adopt the belt type drive mechanism, and motor mounting has improved transmission efficiency in the housing corner, energy saving, and make mounting structure more reasonable.
Description of drawings
Fig. 1 is the utility model structural perspective;
Fig. 2 is each parts broken away view of the utility model;
Fig. 3 is the utility model exhaust outlet front elevation.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
As Fig. 1, Fig. 2, shown in Figure 3, the high negative-pressure air fan of a kind of exhausting efficient comprises motor 1, impeller 2 and housing 3, and described motor 1 is installed on housing 3 corners, and impeller 2 is located at the middle part of housing 3.Driving mechanism comprises the belt pulley 51 that is installed in impeller base 4 and motor output shaft respectively and is connected in belt composition 5 between two belt pulleys 51,52 that belt is the V-type driving belt.Belt pulley 52 diameters that are connected with impeller base 4 are greater than the belt pulley 51 that is connected with motor 1 output shaft.Driving belt is by its tightness of bolt can regulate.The housing exhaust outlet is provided with blinds 7, and intake grill is provided with protection net 8.
When the negative-pressure air fan that exhausting efficient of the present utility model is high was worked, motor 1 energising was rotated, and motor 1 is by the rotation of driving mechanism impeller 2, wind enters from intake grill through protection net 8, then blinds 7 is opened automatically, is discharged outside the factory building by exhaust outlet, makes factory building reach aeration-cooling effect.When motor 1 was out of service, blinds was closed automatically, and blower fan quits work.
Claims (6)
1. negative-pressure air fan that exhausting efficient is high, comprise motor (1), impeller (2) and housing (3), it is characterized in that described motor (1) is installed on housing (3) corner, impeller (2) is located at the middle part of housing (3), and motor (1) is by the rotation of driving mechanism impeller (2).
2. the high negative-pressure air fan of exhausting efficient according to claim 1, it is characterized in that described driving mechanism comprises the belt pulley (51) that is installed in impeller base (4) and motor output shaft respectively and is connected in belt composition (5) between two belt pulleys (51), (52).
3. the high negative-pressure air fan of exhausting efficient according to claim 2 is characterized in that, belt pulley (52) diameter that is connected with impeller base (4) is greater than the belt pulley (51) that is connected with motor (1) output shaft.
4. the high negative-pressure air fan of exhausting efficient according to claim 3 is characterized in that described belt is the V-type driving belt.
5. according to the high negative-pressure air fan of each described exhausting efficient of claim 1 to 4, it is characterized in that described driving belt is by its tightness of bolt can regulate.
6. the high negative-pressure air fan of exhausting efficient according to claim 1 is characterized in that described housing exhaust outlet is provided with blinds (7), and intake grill is provided with protection net (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201989441U CN201723466U (en) | 2010-05-14 | 2010-05-14 | Negative pressure fan with high air suction efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201989441U CN201723466U (en) | 2010-05-14 | 2010-05-14 | Negative pressure fan with high air suction efficiency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201723466U true CN201723466U (en) | 2011-01-26 |
Family
ID=43491787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201989441U Expired - Fee Related CN201723466U (en) | 2010-05-14 | 2010-05-14 | Negative pressure fan with high air suction efficiency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201723466U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104521A (en) * | 2012-12-13 | 2013-05-15 | 昆山俊润通风降温设备有限公司 | Negative pressure draught fan |
-
2010
- 2010-05-14 CN CN2010201989441U patent/CN201723466U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104521A (en) * | 2012-12-13 | 2013-05-15 | 昆山俊润通风降温设备有限公司 | Negative pressure draught fan |
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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: 20110126 Termination date: 20110514 |