CN2311642Y - Axial-flow draught fan - Google Patents
Axial-flow draught fan Download PDFInfo
- Publication number
- CN2311642Y CN2311642Y CN 97205882 CN97205882U CN2311642Y CN 2311642 Y CN2311642 Y CN 2311642Y CN 97205882 CN97205882 CN 97205882 CN 97205882 U CN97205882 U CN 97205882U CN 2311642 Y CN2311642 Y CN 2311642Y
- Authority
- CN
- China
- Prior art keywords
- motor
- draught
- model
- utility
- axial
- 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.)
- Expired - Fee Related
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a draught device, particularly an axial flow draught fan which is arranged at the top of a chimney and is composed of a draught motor, a fume outlet cylinder, etc. Because the draught motor and fume are completely isolated, a motor shaft under a shaft hole of a casing is provided with a centrifugal sealing disk and the centrifugal sealing disk rotates on the same shaft with an axial flow fan to generate less high pressure airflow which flows in a gap between the draught motor and a motor cover to cool the draught motor. Thus, the utility model has the advantages that indoor space can be cleaned, the draught motor shaft can not be easily frozen and the service life of the motor is long. The utility model can be used on a household stove.
Description
The utility model relates to blower unit, especially a kind ofly is installed in the axial id fan that the chimney top is made up of blower motor, flue etc.
As everyone knows, the employed combustion-supporting equipment of cooking stove of family is a kind of now is blower, there is cigarette, dust and is bloated in the inlet chamber in the stove hall by blower easily, makes indoor blowzy shortcoming; Another kind is an induced draught fan, its blower motor is directly installed in the flue, and flue is installed in the top of chimney, and the water vapour that exists blower motor axle place is easy freezing in the winter time, make that blower motor can not be worked, blower motor can't dispel the heat, the shortcoming that working life is short.
The purpose of this utility model just is to overcome the deficiencies in the prior art, and a kind of not axial id fan of easy freezing, motor long service life of indoor clean and tidy, blower motor axle that makes is provided.
For achieving the above object, feature of the present utility model is that the outside corresponding to intake grill is equipped with blower motor, and motor shaft stretches in the housing through the housing axis hole, and at the intake grill place, axial fan is equipped with in the shaft extension end, and the exhaust outlet of housing is connected with flue, and flue is provided with rainhat.
The purpose of this utility model can also reach by following measure: the centrifugal seal dish is housed on the motor shaft below the housing axis hole.
The utility model is owing to isolate blower motor and flue dust fully, on the motor shaft below the housing axis hole, be provided with the centrifugal seal dish, itself and axial fan coaxial rotation, produce micro-high pressure draught, gap circulation between motor and electrical machinery cover, cooling motor can make the not advantage of easy freezing, motor long service life of indoor clean and tidy, blower motor axle so the utlity model has.
Description of drawings:
Accompanying drawing is a main sectional view of the present utility model.
Mark among the figure: housing 1, exhaust outlet 2, flue 3, supporting leg 4, rainhat 5, blower motor 6, electrical machinery cover 7, ventilation window 8, rubber cushion 9, screw 10, housing axis hole 11, motor shaft 12, centrifugal seal dish 13, axial fan 14, intake grill 15.
Accompanying drawing is a kind of structural representation of the present utility model, also is a kind of embodiment's schematic representation.
Below in conjunction with accompanying drawing embodiment of the present utility model is described further: as shown in drawings, housing 1 adopts the casting of HT150 material to form, which is provided with intake grill 15, exhaust outlet 2, housing axis hole 11, motor 6 adopts single-phase split-pole 4 utmost point motors, it utilizes rubber cushion 9, screw 10 is fixed on the outside corresponding to the housing 1 of intake grill 15, electrical machinery cover 7 adopts modified poly ethylene to make, which is provided with ventilation window 8, it is covered on the blower motor 6, blower motor 6 is played the rainproof ventilation effect, motor shaft 12 is in housing axis hole 11 stretches into housing 1, and at the intake grill place, axial fan 14 is equipped with in the shaft extension end, the exhaust outlet 2 of housing 1 is connected with flue 3, flue 3 is riveted mutually with an end of supporting leg 4, the other end of supporting leg 4 is riveted mutually with rainhat 5, centrifugal seal dish 13 iron plate drawing, be contained on the motor shaft 12 of housing axis hole 11 belows, centrifugal seal dish 13 and axial fan 14 coaxial rotation, produce micro-high pressure draught, circulate through the gap that housing axis hole 11 enters between electrical machinery cover 7 and the blower motor 6, cooled off blower motor 6, increased the working life of motor.During use, this device is installed in the top of chimney, adjust the rotating speed of axial fan 14 with by-pass cock, wind enters from the air door of cooking stove, introduce by the intake grill 15 of this device through stove hall, chimney, draw by exhaust outlet 2 again,, the comburant in the stove hall has been played combustion-supporting effect by flowing of wind.Simultaneously, cigarette and dust can not go out and in the inlet chamber from the stove drum used in Chinese operas yet, can make the not advantage of easy freezing, motor long service life of indoor clean and tidy, blower motor axle so the utlity model has, and can be widely used on the cooking stove of family.
Claims (2)
1, a kind of axial id fan, form by blower motor, motor shaft, flue etc., it is characterized in that blower motor being installed corresponding to the outside of intake grill, motor shaft stretches in the housing through the housing axis hole, and at the intake grill place, axial fan is equipped with in the shaft extension end, and the exhaust outlet of housing is connected with flue, and flue is provided with rainhat.
2, a kind of axial id fan according to claim 1 is characterized in that on the said motor shaft below the housing axis hole centrifugal seal dish being housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97205882 CN2311642Y (en) | 1997-01-11 | 1997-01-11 | Axial-flow draught fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97205882 CN2311642Y (en) | 1997-01-11 | 1997-01-11 | Axial-flow draught fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2311642Y true CN2311642Y (en) | 1999-03-24 |
Family
ID=33926014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97205882 Expired - Fee Related CN2311642Y (en) | 1997-01-11 | 1997-01-11 | Axial-flow draught fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2311642Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100366917C (en) * | 1999-09-20 | 2008-02-06 | 三菱电机株式会社 | Air-blower, air-blower system and air-blowing method for air-blower system |
-
1997
- 1997-01-11 CN CN 97205882 patent/CN2311642Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100366917C (en) * | 1999-09-20 | 2008-02-06 | 三菱电机株式会社 | Air-blower, air-blower system and air-blowing method for air-blower system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |