Centrifugal ventilator

Abstract

The utility model discloses a centrifugal ventilator, which belongs to the technical field of ventilators and comprises a support, a worm-shaped shell is fixedly mounted at the top of the support, an air inlet is formed in one side of the worm-shaped shell, a rotating shell is rotatably mounted on the inner wall of the worm-shaped shell, and the centrifugal ventilator further comprises a first driving unit. The first driving unit is used for driving the rotating shell to rotate; an air outlet is formed in the surface of the rotating shell, and an impeller is arranged in the volute shell. According to the fan, the volute shell is fixedly installed at the top of the support, meanwhile, the rotating shell is rotatably installed on the inner wall of the volute shell, when the fan is used, a user controls the impeller to rotate through the second driving unit, air flow can be brought into the volute shell from the air inlet and is finally exhausted from the air outlet, and in the process, the air flow can be exhausted from the air outlet. A user can drive the rotating shell to rotate through the first driving unit, and then the air outlet angle of the air outlet formed in the surface of the rotating shell can be adjusted.

Description

TECHNICAL FIELD

[0001] The utility model relates to a centrifugal fan technical field, specifically a centrifugal fan. BACKGROUND

[0002] Grain machinery is the general term of mechanical equipment for planting, harvesting, processing, storage and transportation of grain, and the centrifugal fan is a common fluid machinery, its principle is that the centrifugal impeller is driven to rotate by the motor, when the impeller rotates, the gas in the impeller is subjected to the action of centrifugal force, the gas is thrown from the center of the impeller to the periphery, a negative pressure area is formed in the impeller, so that the external gas continuously flows into the impeller under the action of atmospheric pressure, after the gas enters the impeller, the kinetic energy is obtained along with the rotation of the impeller, then the gas flows along the outlet direction of the fan through the guide of the volute-shaped casing, and the negative pressure is formed at the center of the impeller, so that the fan can continuously discharge the gas.

[0003] At present, the air outlet angle of the centrifugal fan is generally difficult to control during use, and in some environments, the air outlet angle needs to be controlled, so that the range of air outlet flow can be a little larger, so as to realize better heat dissipation effect, therefore, a new type of centrifugal fan is needed to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model discloses a centrifugal fan, which can control the air outlet angle during use, so that the range of air outlet flow can be a little larger, and better heat dissipation effect can be realized.

[0005] The utility model discloses a centrifugal fan, which can control the air outlet angle during use, so that the range of air outlet flow can be a little larger, and better heat dissipation effect can be realized.

[0006] A centrifugal fan, comprising: a support, a volute-shaped casing is fixedly installed at the top of the support, an air inlet is formed in one side of the volute-shaped casing, a rotating shell is rotatably installed on the inner wall of the volute-shaped casing, a first driving unit is arranged, and the first driving unit is used for driving the rotating shell to rotate.

[0007] An air outlet is formed in the surface of the rotating shell, an impeller is arranged in the volute-shaped casing, and a second driving unit is arranged, and the second driving unit is used for driving the impeller to rotate.

[0008] Further, the volute-shaped casing comprises a main casing, mounting plates and air inlet shells are arranged on the two sides of the main casing respectively, the air inlet is formed in one end of the air inlet shell, the rotating shells are rotatably installed on the inner walls of the main casing on the two sides respectively, and a mounting unit is arranged, and the mounting unit is used for mounting the mounting plates and the air inlet shells on the two sides of the main casing respectively.

[0009] Further, the bracket comprises a bottom plate, a push plate is fixedly installed on the surface of the bottom plate, and the main shell is fixedly installed on the surface of the bottom plate.

[0010] Further, the mounting unit comprises two mounting edges arranged on the surfaces of the mounting plate and the air inlet shell respectively, a plurality of mounting bolts are threadedly inserted on the surfaces of the two mounting edges, and the surfaces of the plurality of mounting bolts are threadedly inserted on the surface of the main shell.

[0011] Further, the first driving unit comprises an electric push rod rotatably installed on the surface of the bracket, the other end of the electric push rod is rotatably installed on the surface of the rotating shell, and the electric push rod is electrically connected with a controller fixedly installed on the surface of the bottom plate.

[0012] Further, the second driving unit comprises a driving rod fixedly installed on the surface of the impeller, the surface of the driving rod is rotatably inserted on the surface of the mounting plate, the surface of the mounting plate is fixedly installed with a driving motor, and the output end of the driving motor is fixedly installed on one end of the driving rod and is electrically connected with the controller.

[0013] Further, the inner wall of the air inlet shell is provided with a slope surface.

[0014] Compared with the prior art, the ventilator has the advantages that:

[0015] 1. In the utility model, one volute shell is fixedly installed on the top of the bracket, and one rotating shell is rotatably installed on the inner wall of the volute shell, in use, the user controls the rotation of the impeller through the second driving unit, air flow can be brought into the inside of the volute shell from the air inlet, and finally discharged from the air outlet, in the process, the user can drive the rotating shell to rotate through the first driving unit, and the air outlet angle of the air outlet arranged on the surface of the rotating shell can be adjusted.

[0016] 2. In the utility model, the mounting plate and the air inlet shell are arranged on the two sides of the main shell, in use, the user removes the plurality of mounting bolts, and then the mounting plate and the air inlet shell can be taken out, the impeller can be taken out for maintenance, and the service life of the device is improved. ACCURACY

[0017] Figure 1 The utility model discloses a ventilator;

[0018] Figure 2 The utility model discloses a ventilator;

[0019] Figure 3 The utility model discloses a ventilator;

[0020] Figure 4 Figure is another angle of the half sectional view of the utility model.

[0021] In the figure: 1, support; 11, bottom plate; 12, push plate; 2, volute housing; 21, main housing; 22, mounting plate; 23, air inlet shell; 24, mounting unit; 241, mounting edge; 242, mounting bolt; 3, air inlet; 4, rotating shell; 5, first drive unit; 51, electric push rod; 52, controller; 6, air outlet; 7, impeller; 8, second drive unit; 81, drive rod; 82, drive motor; 9, slope surface. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model.

[0023] The centrifugal ventilator provided in the embodiment mainly aims at solving the problem that the air outlet angle of the centrifugal ventilator is generally difficult to control in use, and in some environments, the air outlet angle needs to be controlled, so that the range of air outlet airflow can be a little larger, so as to achieve better heat dissipation effect, and provides the following technical scheme, which will be described in detail below in combination with the drawings. Figures 1-4

[0024] ​The utility model provides a centrifugal fan, it includes: the support 1 of top fixed mounting has the volute casing 2, while the air inlet 3 is seted up in one side of volute casing 2, the rotatory shell 4 is rotatably installed on the inner wall of volute casing 2, when using, the user controls the impeller 7 arranged in the inside of volute casing 2 through the second drive unit 8 rotation, namely can bring the airflow from the air inlet 3 into the inside of volute casing 2, finally from the air outlet 6 seted up on the surface of rotatory shell 4 exhaust, namely can realize the quick flow of airflow, and when using, the user can drive rotatory shell 4 rotation through the first drive unit 5, thereby realize the control of the air outlet angle of air outlet 6, wherein the main component of volute casing 2 is: the main casing 21 of setting up the mounting plate 22 and the air inlet shell 23 respectively on both sides, while the air inlet 3 is seted up in one end of air inlet shell 23, the rotatory shell 4 is rotatably installed on the both sides of the inner wall of main casing 21, when using, the user needs to install mounting plate 22 and air inlet shell 23 respectively on both sides of main casing 21 through the installation unit 24, wherein the main component of support 1 is: the bottom plate 11 of surface fixed mounting has the push plate 12, while the main casing 21 is fixedly installed on the surface of bottom plate 11, when using, the user holds the push plate 12, namely can drive the bottom plate 11 to move, wherein the main component of first drive unit 5 is: the electric push rod 51 of one end rotatably installed on the surface of support 1, when using, the user controls the electric push rod 51 telescopic through the controller 52 fixedly installed on the surface of bottom plate 11, namely can drive the rotatory shell 4 rotatably installed on the other end of electric push rod 51 rotation, thereby realize the control of the air outlet angle of air outlet 6, wherein the main component of second drive unit 8 is: the drive motor 82 of fixedly installed on the surface of mounting plate 22, when using, the user controls the output end rotation of drive motor 82 through the controller 52, namely can drive the drive rod 81 rotatably inserted on the surface of mounting plate 22 rotation, because the other end of drive rod 81 is fixedly installed on the surface of impeller 7, thus the impeller 7 will be synchronously driven, it needs to be explained: the impeller 7 is prior art, and it is the main work component for generating wind pressure and transmitting energy, and is usually composed of front disc, rear disc, blade and shaft disc. The geometric shape, size, number of blades and manufacturing precision of the impeller 7 have a great influence on the performance of the fan. According to the different outlet directions of the blades, the impeller 7 is divided into three types of forward, radial and backward, when rotating, the blades will throw wind to the outside diameter direction.

[0025] By the top of support 1 fixed mounting a volute casing 2, while the inner wall of volute casing 2 rotatably installs a rotatory shell 4, when using, the user controls the impeller 7 rotation through the second drive unit 8, namely can bring the airflow from the air inlet 3 into the inside of volute casing 2, finally from the air outlet 6 exhaust, in the process, the user can drive rotatory shell 4 rotation through the first drive unit 5, namely can adjust the air outlet angle of air outlet 6 seted up on the surface of rotatory shell 4.

[0026] By setting the mounting plate 22 and the air inlet shell 23 on the two sides of the main shell 21, the user can remove the mounting plate 22 and the air inlet shell 23 by taking off the mounting bolts 242, take out the impeller 7, and overhaul the impeller 7, thereby prolonging the service life of the device.

[0027] As shown in Figure 1 and Figure 3 In some embodiments, the main components of the mounting unit 24 include the mounting bolts 242, which are screwed into the surfaces of the mounting plate 22 and the air inlet shell 23, and the mounting edges 241 on the surfaces of the mounting plate 22 and the air inlet shell 23 are attached to the two sides of the main shell 21, thereby achieving the installation of the mounting unit 24.

[0028] The working process of the utility model is as follows: first, the user needs to install the mounting plate 22 and the air inlet shell 23 on the two sides of the main shell 21 by using the mounting bolts 242, thereby limiting the position of the impeller 7 in the main shell 21.

[0029] Secondly, during use, the user can also control the electric push rod 51 through the controller 52, further driving the rotating shell 4 to rotate, thereby controlling the angle of the air outlet 6, making the range of air outlet larger, and effectively improving the heat dissipation effect.

[0030] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A centrifugal fan, characterized in that, include: The bracket (1) has a volute housing (2) fixedly installed on its top. An air inlet (3) is provided on one side of the volute housing (2). A rotating shell (4) is rotatably installed on the inner wall of the volute housing (2). The bracket (1) also includes a first drive unit (5), which is used to drive the rotating shell (4) to rotate. The rotating shell (4) has an air outlet (6) on its surface. The volute shell (2) has an impeller (7) inside and also includes a second drive unit (8), which is used to drive the impeller (7) to rotate.

2. A centrifugal fan according to claim 1, characterized in that: The volute housing (2) includes a main housing (21), on both sides of the main housing (21) are respectively provided an mounting plate (22) and an air inlet housing (23), the air inlet (3) is opened at one end of the air inlet housing (23), the two sides of the rotating housing (4) are respectively rotatably installed on both sides of the inner wall of the main housing (21), and also includes an installation unit (24), the installation unit (24) is used to install the mounting plate (22) and the air inlet housing (23) on both sides of the main housing (21).

3. A centrifugal fan according to claim 2, characterized in that: The bracket (1) includes a base plate (11), a push plate (12) is fixedly installed on the surface of the base plate (11), and the main housing (21) is fixedly installed on the surface of the base plate (11).

4. A centrifugal fan according to claim 2, characterized in that: The mounting unit (24) includes two mounting edges (241) respectively disposed on the surface of the mounting plate (22) and the air inlet shell (23). The surfaces of the two mounting edges (241) are threaded with a number of mounting bolts (242), and the surfaces of the mounting bolts (242) are threaded into the surface of the main housing (21).

5. A centrifugal fan according to claim 3, characterized in that: The first drive unit (5) includes an electric push rod (51) rotatably mounted on the surface of the bracket (1), the other end of the electric push rod (51) being rotatably mounted on the surface of the rotating shell (4), and the electric push rod (51) being electrically connected to a controller (52) fixedly mounted on the surface of the base plate (11).

6. A centrifugal fan according to claim 5, characterized in that: The second drive unit (8) includes a drive rod (81) fixedly installed on the surface of the impeller (7). The surface of the drive rod (81) is rotatably inserted into the surface of the mounting plate (22). A drive motor (82) is fixedly installed on the surface of the mounting plate (22). The output end of the drive motor (82) is fixedly installed on one end of the drive rod (81) and electrically connected to the controller (52).

7. A centrifugal fan according to claim 2, characterized in that: The inner wall of the air inlet shell (23) is provided with a sloped surface (9).

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