阅读说明：本技术 一种幅流风机风扇风罩 (Fan cover of radial fan ) 是由 赵京 王铭昭 于 2020-06-03 设计创作，主要内容包括：本发明公开了一种幅流风机风扇风罩。本发明包括风扇,风扇的前端连接风罩前端盖,风扇的后端连接风罩后端盖；所述风罩后端盖连接集风板和挡风板；所述集风板和挡风板之间为出风口。本发明具有进风风量均匀,车厢内部舒适性好,风罩重量小和可降低电机损耗的优点。(The invention discloses a fan cover of a radial flow fan. The fan comprises a fan, wherein the front end of the fan is connected with a fan cover front end cover, and the rear end of the fan is connected with a fan cover rear end cover; the rear end cover of the fan cover is connected with the wind collecting plate and the wind shield; an air outlet is arranged between the wind collecting plate and the wind shield. The invention has the advantages of uniform air inlet quantity, good comfort inside the carriage, light weight of the fan cover and capability of reducing the loss of the motor.)

1. The utility model provides a fan housing of radial fan which characterized in that: the fan comprises a fan (4), wherein the front end of the fan (4) is connected with a fan cover front end cover (1), and the rear end of the fan (4) is connected with a fan cover rear end cover (3); the rear end cover (3) of the fan cover is connected with the wind collecting plate (2) and the wind shield (5); an air outlet (6) is arranged between the wind collecting plate (2) and the wind shield (5).

2. The fan housing of a radial fan according to claim 1, wherein: the plate body of the wind collecting plate (2) is arranged in a concave manner far away from the fan (4).

3. The fan housing of a radial fan according to claim 1, wherein: the plate body of the wind shield (5) is arranged in a concave manner far away from the fan (4).

Technical Field

The invention relates to the technical field of fan hoods, in particular to a fan hood of a radial flow fan.

Background

The radial flow fan is a ventilation device applied to air circulation in the carriage of public transport means such as subways, trains, high-speed rails, buses and the like. The traditional fan cover adopts a totally-enclosed fixed fan cover, and the wind direction of the fan cover only faces to one direction, so that the air inlet inside a carriage is uneven. Meanwhile, the totally-enclosed fan cover is heavy in size, certain load can be added to the fan and the motor of the radial flow fan, and the effective power of the motor is reduced, so that the working effect of the radial flow fan is influenced, and the comfort in a carriage is weakened.

Therefore, the existing totally-enclosed fan cover has the problems of uneven air inlet and heavier weight, which affects the working effect of the radial flow fan.

Disclosure of Invention

The invention aims to provide a fan cover of a radial flow fan. The invention has the advantages of uniform air inlet quantity, good comfort inside the carriage, light weight of the fan cover and capability of reducing the loss of the motor.

The technical scheme of the invention is as follows: a fan cover of a radial flow fan comprises a fan, wherein the front end of the fan is connected with a front end cover of the fan cover, and the rear end of the fan is connected with a rear end cover of the fan cover; the rear end cover of the fan cover is connected with the wind collecting plate and the wind shield; an air outlet is arranged between the wind collecting plate and the wind shield.

In the fan housing of the radial fan, the plate body of the air collecting plate is recessed away from the fan.

In the fan housing of the radial fan, the plate body of the wind shield is recessed away from the fan.

Compared with the prior art, the invention has the following beneficial effects:

1. the air collecting plate with the structure can condense the fan to drive the dispersed air, and when the air meets the air baffle in high motion, the air is forced to change the motion direction, so that the air is discharged from the air outlet. The invention designs the wind collecting plate and the wind shield in a radian manner, so that the wind resistance can reduce the impact force of air on the inner wall along the movement of the fan, further reduce the vibration of the plate, ensure the uniform air quantity of the air outlet and improve the internal comfort of the carriage.

2. The invention improves the existing totally enclosed fan cover into the wind collecting plate and the wind shield, and the wind outlet is arranged between the wind collecting plate and the wind shield, thus reducing the weight of the fan cover, reducing the idle work done by the motor, reducing the loss of the motor and ensuring the operation effect.

3. The fan cover can change the swing frequency of the fan cover according to the internal ambient temperature of the carriage so as to change the air flow characteristic, thereby ensuring that the air output of the radial flow fan is uniform and improving the internal comfort of the carriage.

In summary, the following steps: the invention has the advantages of uniform air inlet quantity, good comfort inside the carriage, light weight of the fan cover and capability of reducing the loss of the motor.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view showing the first wind direction when the present invention is in use;

fig. 3 is a schematic view showing the wind direction in use of the present invention.

The labels in the figures are: 1-a front end cover of a fan cover, 2-an air collecting plate, 3-an end cover, 4-a fan, 5-an air baffle and 6-an air outlet.

In fig. 2 and 3 illustrated in the above drawings, curved arrows represent wind directions.

Detailed Description

The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.