CN212155210U

CN212155210U - High-efficiency outer rotor centrifugal fan

Info

Publication number: CN212155210U
Application number: CN202020409705.XU
Authority: CN
Inventors: 滕文祥
Original assignee: Shandong Deke Blower Co ltd
Current assignee: Shandong Deke Blower Co ltd
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-12-15
Anticipated expiration: 2030-03-27

Abstract

The utility model discloses an efficient external rotor centrifugal fan, including wind channel shell, built-in cover and base, the lower extreme of terminal surface all is fixed with the connecting block around the wind channel shell, and the lower extreme of connecting block fixes the up end at the base, the gas vent has been seted up to the upper end of wind channel shell one side, the terminal surface opening part before the wind channel shell is fixed to built-in cover, department is fixed with the baffle in the middle of the inside of built-in cover, department rotates in the middle of the outside of baffle installs the output shaft, and the outside annular array distribution of output shaft has the fan, the air inlet has been seted up to the department in the middle of the preceding terminal surface of built-in cover, the outside annular array distribution that built-in cover is located wind channel shell inside has wind-guiding mouth and intercommunication mouth, and the wind-guiding mouth is corresponding with the fan, be fixed with the. The utility model discloses possess the simple and convenient structure, convenient to detach maintains and can effectively cool down, ensures device life's advantage.

Description

High-efficiency outer rotor centrifugal fan

Technical Field

The utility model relates to a fan technical field specifically is an efficient external rotor centrifugal fan.

Background

The centrifugal fan is a driven fluid machine which increases the pressure of gas and discharges the gas by means of input mechanical energy. Centrifugal fans are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and draught of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and selecting grains; wind tunnel wind source and air cushion boat inflation and propulsion. The outer rotor motor has the characteristics of space saving, compact design and attractive appearance. The cooling device is suitable for being installed in the impeller and has the best cooling effect. No V-belts, additional tension belts or other devices are required.

The existing outer rotor centrifugal fan has the characteristics of high efficiency, low noise, light weight, compact structure and the like. However, in the long-term working and use process, the driving motor in the outer rotor cannot be provided with a fan for circulating cooling, the built-in driving device cannot be effectively cooled easily due to long-term work, the service life is short, and the like.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an efficient external rotor centrifugal fan, it is simple and convenient to possess the structure, and convenient to detach maintains and can effectively cool down, ensures device life's advantage, and it is complicated to solve current device structure, maintains inconvenient and the poor problem of radiating effect.

In order to achieve the above object, the utility model provides a following technical scheme: the lower ends of the front end face and the rear end face of the air channel shell are respectively fixed with a connecting block, the lower ends of the connecting blocks are fixed on the upper end face of the base, an air outlet is formed in the upper end of one side of the air channel shell, the built-in sleeve is fixed at the opening of the front end face of the air channel shell, a partition plate is fixed in the middle of the inner portion of the built-in sleeve, an output shaft is rotatably mounted in the middle of the outer side of the partition plate, fans are distributed on the outer side of the output shaft in an annular array mode, an air inlet is formed in the middle of the front end face of the built-in sleeve, an air guide opening and a communication opening are distributed on the outer side of the built-in sleeve in the air channel shell, the air guide opening corresponds to the fans, a driving.

Preferably, the connecting block is installed on the air duct shell through screw threads, and the outer side of the air inlet on the front end face of the built-in sleeve is fixed at the opening of the air duct shell through screws.

Preferably, an isolation net is fixed in the air inlet, the position of the air inlet corresponds to that of the fan, and the air inlet is designed in an annular shape.

Preferably, the air guide opening and the communication opening are respectively located on two sides of the partition plate, and one side, away from the air inlet, of the built-in sleeve is attached to the inner wall of the air duct shell.

Preferably, the driving box corresponds to the communicating port, a motor is fixed in the driving box, and a rotating shaft of the motor is connected with the output shaft.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a set up built-in cover, the external power supply supplies power, start the drive incasement motor, the motor drives the fan rotation on the output shaft, the outside air passes through the air inlet and enters, rotate through the fan and make the air current from the leading-in wind channel shell of wind-guiding mouth inside, when the air current is in the wind channel shell when the gas vent direction, the air current is taken away the motor during operation through drive case surface from the intercommunication mouth position, the air current is discharged from the gas vent position again, when dismantling the maintenance, take off built-in cover air inlet department screw, it can to take out the opening part of terminal surface before the wind channel shell with built-in cover, this device simple structure, the operation is simple and convenient, can effectively improve the radiating efficiency of device, ensure device life, the mounting structure is simple and convenient simultaneously, can realize the dismantlement and the installation of device fast.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic sectional view of the inner sleeve of the present invention;

fig. 3 is a schematic view of the external structure of the built-in sleeve of the present invention.

In the figure: 1. an air duct shell; 2. a screw; 3. a built-in sleeve; 4. connecting blocks; 5. a base; 6. an isolation net; 7. an exhaust port; 8. an air inlet; 9. an output shaft; 10. a fan; 11. a wind guide opening; 12. a communication port; 13. a drive box; 14. a separator.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to fig. 3, the present invention provides an embodiment: the utility model provides an efficient external rotor centrifugal fan, including wind channel shell 1, built-in cover 3 and base 5, the lower extreme of terminal surface all is fixed with connecting block 4 around the wind channel shell 1, and the lower extreme of connecting block 4 is fixed at the up end of base 5, gas vent 7 has been seted up to the upper end of 1 one side of wind channel shell, the terminal surface opening part before the wind channel shell 1 is fixed to built-in cover 3, connecting block 4 passes through 2 screw thread installations on wind channel shell 1 of screw, the opening part at wind channel shell 1 is fixed through 2 screws in the outside of terminal surface air inlet 8 before the built-in.

A partition plate 14 is fixed in the middle of the inside of the built-in sleeve 3, an output shaft 9 is rotatably installed in the middle of the outer side of the partition plate 14, fans 10 are distributed on the outer side of the output shaft 9 in an annular array mode, an air inlet 8 is formed in the middle of the front end face of the built-in sleeve 3, an air guide opening 11 and a communication opening 12 are distributed on the outer side of the built-in sleeve 3 located inside the air duct shell 1 in an annular array mode, the air guide opening 11 corresponds to the fans 10, an isolation net 6 is fixed in the air inlet 8, the air inlet 8 corresponds to the fans 10 in position, the air inlet 8 is in an annular design, the air guide opening 11 and the communication opening 12 are located on two sides of the partition plate 14.

A driving box 13 is fixed on the inner wall of the built-in sleeve 3, the driving box 13 is attached to a partition plate 14, the driving box 13 corresponds to the communicating port 12, a motor is fixed in the driving box 13, a rotating shaft of the motor is connected with the output shaft 9, an external power supply supplies power, the motor in the driving box 13 is started, the motor drives a fan 10 on the output shaft 9 to rotate, outside air enters through an air inlet 8, air flow is guided into the air duct shell 1 from an air guide port 11 through the rotation of the fan 10, when the air flow flows to the direction of an exhaust port 7 in the air duct shell 1, the air flow takes away heat generated when the motor works from the position of the communicating port 12 through the surface of the driving box 13, the air flow is exhausted from the position of the exhaust port 7, when disassembly and maintenance are carried out, a screw 2 at the position of the air inlet 8 of the built-in sleeve 3 is taken down, and the built-in sleeve 3 is taken out, ensure device life, mounting structure is simple and convenient simultaneously, can realize the dismantlement and the installation of device fast, the later stage device's of being convenient for maintenance, the practicality is strong.

The working principle is as follows: the utility model discloses in operation, the external power supply, start motor in the drive case 13, the motor drives fan 10 and rotates on the output shaft 9, the outside air passes through air inlet 8 and enters, it makes the air current follow the leading-in wind channel shell 1 inside of wind-guiding mouth 11 to rotate through fan 10, when the air current is in wind channel shell 1 during to gas vent 7 direction, the air current is taken away the motor during operation and is produced the heat through drive case 13 surface from intercommunication mouth 12 positions, the air current is discharged from gas vent 7 positions again, when dismantling and maintaining, will embed 3 air inlets 8 screws 2 of cover and take off, take out the opening part of built-in cover 3 from wind channel shell 1 preceding terminal surface. The working principle of the present invention is the above.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a high efficiency external rotor centrifugal fan, includes wind channel shell (1), built-in cover (3) and base (5), its characterized in that: the lower end of the front end face and the lower end of the rear end face of the air duct shell (1) are both fixed with connecting blocks (4), the lower ends of the connecting blocks (4) are fixed on the upper end face of the base (5), the upper end of one side of the air duct shell (1) is provided with an exhaust port (7), the built-in sleeve (3) is fixed at the opening of the front end face of the air duct shell (1), the middle of the inside of the built-in sleeve (3) is fixed with a partition plate (14), the middle of the outside of the partition plate (14) is rotatably provided with an output shaft (9), fans (10) are distributed on the outside of the output shaft (9) in an annular array manner, an air inlet (8) is arranged at the middle of the front end face of the built-in sleeve (3), an air guide opening (11) and a communication opening (12) are distributed on the outside of the built-in sleeve (3) in the air duct shell (1) in, and the driving box (13) is jointed with the clapboard (14).

2. A high efficiency external rotor centrifugal fan as claimed in claim 1 wherein: the connecting block (4) is installed on the air duct shell (1) through a screw (2) in a threaded mode, and the outer side of the air inlet (8) in the front end face of the built-in sleeve (3) is fixed at the opening of the air duct shell (1) through the screw (2).

3. A high efficiency external rotor centrifugal fan as claimed in claim 1 wherein: an isolation net (6) is fixed in the air inlet (8), the position of the air inlet (8) corresponds to that of the fan (10), and the air inlet (8) is designed in an annular shape.

4. A high efficiency external rotor centrifugal fan as claimed in claim 1 wherein: the air guide opening (11) and the communication opening (12) are respectively positioned at two sides of the partition plate (14), and one side of the built-in sleeve (3) departing from the air inlet (8) is attached to the inner wall of the air duct shell (1).

5. A high efficiency external rotor centrifugal fan as claimed in claim 1 wherein: the driving box (13) corresponds to the communicating opening (12), a motor is fixed in the driving box (13), and a rotating shaft of the motor is connected with the output shaft (9).