CN203463356U - Roof fan - Google Patents
Roof fan Download PDFInfo
- Publication number
- CN203463356U CN203463356U CN201320591387.3U CN201320591387U CN203463356U CN 203463356 U CN203463356 U CN 203463356U CN 201320591387 U CN201320591387 U CN 201320591387U CN 203463356 U CN203463356 U CN 203463356U
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- CN
- China
- Prior art keywords
- motor
- shaft
- impeller
- base plate
- fan
- 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 - Lifetime
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Abstract
The utility model discloses a roof fan which comprises a hood and a fan base. An impeller is arranged above the fan base, the two sides of the impeller are provided with supporting rods located between the hood and the fan base, the impeller is provided with an installation hole, an upper opening of the installation hole is provided with an inclined shaft sleeve which is provided with a shaft hole, and the fan base is provided with a groove matched with the installation hole. The inside of the roof fan is provided with a motor which comprises a motor body and a motor shaft, the motor body is matched with the installation hole and the groove, the motor shaft is matched with the shaft hole in the inclined shaft sleeve, the fan base is provided with a motor support which is supported on the two sides of the motor, and the motor is a three-phase asynchronous motor. The motor is vertically installed in the motor but the motor body is on a lower position and the motor shaft is on an upper portion, due to inversion of the motor, the motor with a large size can be contained in the roof fan, and a user does not need to worry about the situation that the motor is exposed outside the fan and is subjected to corrosion and damage of rain and snow.
Description
Technical field
The utility model relates to a kind of roof ventilator.
Background technique
At present; the motor volume of roof ventilator that is generally arranged on roof is larger; motor is mostly to erect and is arranged in blower fan simultaneously; and motor main body upper motor shaft under, so motor main body most is all exposed in air, once therefore run into sleety weather; just be easy to make its damage; now great majority all adopt and rainhat is set protects motor, but this method not only causes product component to increase, and also causes cost of production to increase.
Summary of the invention
The utility model will solve that existing roof ventilator is exposed due to electrical installation easily to be caused by sleet erosion damage and the technical problem that the method for rainhat protection motor not only causes product component to increase and can cause cost of production to increase is set in air.
The technical scheme in the invention for solving the above technical problem is:
The utility model discloses a kind of roof ventilator, comprise blast cap, base plate, base plate top is provided with impeller, and impeller both sides are provided with the strut between blast cap and base plate, it is characterized in that: on described impeller, have a placement hole, placement hole upper opening place is provided with inclined shaft cover; Described inclined shaft puts and is provided with an axis hole; Described base plate is provided with the groove matching with placement hole; In roof ventilator, be provided with a motor; Described motor comprises motor main body, motor shaft; Described motor main body and placement hole, groove all match; The axis hole that described motor shaft and inclined shaft put matches; Described base plate is provided with the electric machine support that is supported on motor both sides; Described motor is threephase asynchronous.
The axis hole cross section that described inclined shaft puts is reverse frustoconic.
The beneficial effects of the utility model are:
Compared with prior art; adopt the roof ventilator of the utility model structure; though motor is also arranged in blower fan for erectting; but motor main body at lower motor shaft upper; the inversion of motor makes the motor that volume is larger also can be contained in roof ventilator; thereby without rainhat protection is set again, also not worrying can be by sleet erosion damage.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model roof ventilator.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Refer to Fig. 1, the utility model provides a kind of roof ventilator, comprise blast cap (1), base plate (2), base plate (2) top is provided with impeller (3), impeller (3) both sides are provided with the strut (4) being positioned between blast cap (1) and base plate (2), on described impeller (3), have a placement hole (5), placement hole (5) upper opening place is provided with inclined shaft cover (6); Described inclined shaft cover (6) is provided with an axis hole (7); Described base plate (2) is provided with the groove (8) matching with placement hole (5); In roof ventilator, be provided with a motor (9); Described motor comprises motor main body (10), motor shaft (11); Described motor main body (10) all matches with placement hole (5), groove (8); Described motor shaft (11) matches with the axis hole (7) that inclined shaft puts; Described base plate (2) is provided with the electric machine support (12) that is supported on motor (9) both sides; Described motor (9) is threephase asynchronous.
Threephase asynchronous volume is larger, in ordinary circumstance motor main body (10), there is most exposed outside air, need the rainhat that can prevent that it from being damaged by sleet be set outward at blower fan, but the utility model is come motor top and the bottom bit reversal, make motor main body (10) at lower motor shaft (11) upper, in roof ventilator, arrange again can accommodating motor (9) placement hole (5) and groove (8), now motor is completely in roof ventilator, can be by sleet erosion damage in air because exposed without worrying motor, also without being set again, rainhat protects motor, this design has not only reduced the component of product, assemble easier, and cost of production is reduced, and in motor both sides, be provided with the electric machine support (12) that supports use, improved to a great extent the steadiness of motor.
The axis hole that described inclined shaft puts (7) cross section is reverse frustoconic, motor shaft and axle sleeve constantly rub when roof ventilator moves, in order to guarantee work normal operation, need make to be lubricated fully between motor shaft and axle sleeve, therefore lubricant oil to be added on the surface of contact of motor shaft and axle sleeve, if adopt common d-axis cover, motor shaft and axle sleeve fractionation to be come and could add lubricant oil toward inside, but the utility model adopts inclined shaft, cover mates with motor shaft, lubricated convenient, thus more stable while working.
Claims (2)
1. a roof ventilator, comprise blast cap, base plate, base plate top is provided with impeller, and impeller both sides are provided with the strut between blast cap and base plate, it is characterized in that: on described impeller, have a placement hole, placement hole upper opening place is provided with inclined shaft cover; Described inclined shaft puts and is provided with an axis hole; Described base plate is provided with the groove matching with placement hole; In roof ventilator, be provided with a motor; Described motor comprises motor main body, motor shaft; Described motor main body and placement hole, groove all match; The axis hole that described motor shaft and inclined shaft put matches; Described base plate is provided with the electric machine support that is supported on motor both sides; Described motor is threephase asynchronous.
2. a kind of roof ventilator according to claim 1, is characterized in that: the axis hole cross section that described inclined shaft puts is reverse frustoconic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320591387.3U CN203463356U (en) | 2013-09-25 | 2013-09-25 | Roof fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320591387.3U CN203463356U (en) | 2013-09-25 | 2013-09-25 | Roof fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203463356U true CN203463356U (en) | 2014-03-05 |
Family
ID=50175723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320591387.3U Expired - Lifetime CN203463356U (en) | 2013-09-25 | 2013-09-25 | Roof fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203463356U (en) |
-
2013
- 2013-09-25 CN CN201320591387.3U patent/CN203463356U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140305 |
|
| CX01 | Expiry of patent term |