Fan air duct structure capable of improving air pressure

Abstract

A fan air duct structure capable of improving air pressure belongs to the technical field of fans and comprises a fan air duct structure body which comprises an air duct body, a fan, fan blades and a main air duct. The fan is fixedly arranged in the center of the right side of the air duct body; the fan blades are fixedly arranged on the right side of the fan; a main air duct is formed between the fan and the air duct body; the device further comprises an outer shell. The outer shell sleeves the outer side of the fan air duct structure main body; the air duct body is arranged on the right side in the outer shell, and a certain distance is reserved between the outer shell and the air duct body and is larger than or equal to 0. When the distance is greater than 0, an auxiliary air duct is formed between the right part of the outer shell and the air duct body; more than one layer of reinforcing ribs perpendicular to the inner wall of the outer shell and the outer wall of the air duct are arranged in the auxiliary air duct; when the distance is equal to 0, no auxiliary air duct exists between the right part of the outer shell and the air duct body; and the right part of the outer shell air cavity is provided with an air duct window or is not provided with an air duct window. The utility model has the beneficial effects that the air cavity is enlarged, and the air pressure is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a fan air duct structure, particularly relates to a fan air duct structure improving wind pressure and belongs to fan technical field. BACKGROUND

[0002] The common fan, especially the storm fan, takes the fuselage as the gravity center, adopts the closed shell design, the fan air duct structure only has one main air duct, the wind cavity of the front end of the fan blade is small, the generated wind pressure is small, and the actual needs cannot be satisfied. UTILITY MODEL CONTENTS

[0003] The utility model discloses a fan air duct structure improving wind pressure, which can increase the air duct, expand the wind cavity and improve the wind pressure.

[0004] In order to realize the above-mentioned purpose, the utility model takes the technical scheme that a fan air duct structure improving wind pressure, including fan air duct structure main part, the fan air duct structure main part includes the air cylinder body, fan, fan blade and main air duct, the air cylinder body is cylindrical body, the fan is fixedly arranged at the center position of the right side of air cylinder body, the fan blade is fixedly arranged at the right side of fan, the main air duct is formed between the fan and the air cylinder body, still including the shell body, the shell body is set up at the outside of fan air duct structure main part, the right end of shell body is the air inlet, and the left end of shell body is the air outlet,

[0005] The shell body is from left to right, and the wind cavity is formed in the left side of shell body, the right part of shell body and the air cylinder body arranged in the center have a certain distance, and the distance is greater than or equal to 0, when the distance is greater than 0, the right part of shell body and the air cylinder body form the auxiliary air duct, the auxiliary air duct is provided with one layer or more than one layer of reinforcing ribs perpendicular to the inner wall of shell body and the outer wall of air cylinder body, each layer of reinforcing ribs has a plurality of reinforcing rib strips arranged uniformly, when the distance is equal to 0, the right part of shell body and the air cylinder body have no auxiliary air duct,

[0006] The right part of the shell body wind cavity is provided with an air duct window or the right part of the shell body wind cavity is not provided with an air duct window.

[0007] The auxiliary air duct is provided with two layers of reinforcing ribs perpendicular to the inner wall of shell body and the outer wall of air cylinder body, and each layer of reinforcing ribs has seven reinforcing rib strips arranged uniformly.

[0008] When the distance is greater than 0, the right part of the shell body wind cavity is provided with an air duct window, and the auxiliary air duct, the wind cavity and the air duct window increase the air outlet wind pressure of the fan by more than 30%.

[0009] The distance is greater than 0, the right part of the outer shell air cavity is not provided with an air duct window when the auxiliary air duct is provided, and the air pressure of the air outlet of the fan is increased by more than 25% through the auxiliary air duct and the air cavity.

[0010] The distance is equal to 0, the right part of the outer shell air cavity is provided with an air duct window when the auxiliary air duct is not provided, and the air pressure of the air outlet of the fan is increased by more than 20% through the air duct window.

[0011] The outer shell is a cylindrical body.

[0012] The outer shell is a square body.

[0013] The outer shell can also be other shapes.

[0014] Compared with the prior art, the fan increases the auxiliary air duct outside the main air duct without changing the voltage and current, expands the air cavity in front of the fan blade, sets the air duct window in the middle of the outer shell, and improves the air pressure of the air outlet by more than 20-30%, thereby meeting the actual needs. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a front view of the utility model;

[0016] Figure 2 is: Figure 1 A-A sectional view of;

[0017] Figure 3 is: the sectional view of example 1;

[0018] Figure 4 is: the left view of example 2;

[0019] Figure 5 is: the sectional view of example 3;

[0020] Figure 6 is: the perspective view (front view) of example 1;

[0021] Figure 7 is: the perspective view (rear view) of example 1;

[0022] Figure 8 is: the front view of example 4.

[0023] BRIEF DESCRIPTION OF DRAWINGS: air duct body 1, fan 2, fan blade 3, main air duct 4, outer shell 5, air inlet 6, air outlet 7, air cavity 8, auxiliary air duct 9, reinforcing rib 10, air duct window 11. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor are within the protection scope of the utility model. The "left, right, front and back" described in the embodiments are for the convenience of description, and the technical solutions with opposite directions and same structures are within the protection scope of the application.

[0025] Embodiment 1

[0026] As shown in Figures 1 to 3 , Figure 6 , Figure 7 , a fan air duct structure for improving wind pressure, as shown in Figure 1 and Figure 2 , comprising a fan 2 air duct structure body, the fan 2 air duct structure body comprises a wind cylinder body 1, a fan 2, a fan blade 3 and a main air duct 4, the wind cylinder body 1 is a cylindrical body, the fan 2 is fixedly arranged at the center position of the right side of the wind cylinder body 1, and the fan blade 3 is fixedly arranged at the right side of the fan 2, the fan 2 and the wind cylinder body 1 form the main air duct 4, further comprising an outer shell 5, the outer shell 5 is a cylindrical body, the outer shell 5 is sleeved outside the fan 2 air duct structure body, the right end of the outer shell 5 is an air inlet 6, and the left end of the outer shell 5 is an air outlet 7.

[0027] As shown in Figure 1 and Figure 2 , the outer shell 5 extends leftwards, and a wind cavity 8 is formed in the left side of the outer shell 5; the right part of the outer shell 5 is a certain distance away from the wind cylinder body 1 arranged at the center; when the distance is greater than 0, the right part of the outer shell 5 and the wind cylinder body 1 form a secondary air duct 9; the secondary air duct 9 is provided with one layer or more than one layer of reinforcing ribs 10 perpendicular to the inner wall of the outer shell 5 and the outer wall of the wind cylinder body 1, and each layer of reinforcing ribs 10 has a plurality of uniformly arranged reinforcing ribs 10.

[0028] As shown in Figure 1 and Figure 2 , the secondary air duct 9 is provided with two layers of reinforcing ribs 10 perpendicular to the inner wall of the outer shell 5 and the outer wall of the wind cylinder body 1, and each layer of reinforcing ribs 10 has seven uniformly arranged reinforcing ribs 10.

[0029] As shown in Figure 1 , Figure 2 and Figure 3 , when the distance is greater than 0 and the secondary air duct 9 exists, the right part of the wind cavity 8 of the outer shell 5 is provided with an air duct window 11, and the air outlet 7 of the fan 2 is provided with an air duct window 11. By arranging the secondary air duct 9, the wind cavity 8 and the air duct window 11, the wind pressure of the air outlet 7 of the fan 2 is increased by more than 30%.

[0030] Embodiment 2:

[0031] As shown in Figure 1 and Figure 4 the distance is greater than 0, the right part of the air cavity 8 of the outer shell 5 is not provided with the air duct window 11 when the auxiliary air duct 9 is provided, and the air pressure of the air outlet 7 of the fan 2 is increased by more than 25% through the provision of the auxiliary air duct 9 and the air cavity 8.

[0032] The rest is the same as Embodiment 1.

[0033] Embodiment 3:

[0034] As shown in Figure 5 the distance is equal to 0, the right part of the air cavity 8 of the outer shell 5 is provided with the air duct window 11 when the auxiliary air duct 9 is not provided, and the air pressure of the air outlet 7 of the fan 2 is increased by more than 20% through the provision of the air duct window 11.

[0035] The rest is the same as Embodiment 1.

[0036] Embodiment 4:

[0037] As shown in Figure 8 the outer shell 5 is a square body.

[0038] The rest is the same as Embodiment 1 or Embodiment 2 or Embodiment 3.

[0039] The above-described embodiments are only the preferred embodiments of the present application, and the outer shell can also be in other shapes other than the cylindrical body and the square body, and the usual changes and replacements made by the person skilled in the art within the technical scheme of the present application should be included in the protection scope of the present application.

Claims

1. A fan duct structure for improving wind pressure, comprising a fan duct structure body, the fan duct structure body comprising a fan duct body, a fan, a fan blade and a main duct; the fan duct body is a cylindrical body, the fan is fixedly arranged at the center position of the right side of the fan duct body, and the fan blade is fixedly arranged at the right side of the fan; the fan and the fan duct body form a main duct; characterized in that: Also include the outer shell; the outer shell set in the fan duct structure body outside; the outer shell right end is the air inlet, the outer shell left end is the air outlet; the outer shell from left out, form the wind cavity in the left side of the outer shell; The wind pipe body is arranged in the inner right side of the outer shell, and there is a certain distance between the outer shell and the wind pipe body, the distance is greater than or equal to 0; When the distance is greater than 0, the right part of the outer shell and the wind pipe body form a secondary air duct; The secondary air duct is provided with more than one reinforcing rib perpendicular to the inner wall of the outer shell and the outer wall of the wind pipe body, and each layer of reinforcing rib has a plurality of uniformly arranged reinforcing rib strips; When the distance is equal to 0, the right part of the outer shell and the wind pipe body have no secondary air duct. The right part of the outer shell wind cavity is provided with an air duct window or the right part of the outer shell wind cavity is not provided with an air duct window.

2. The fan duct structure for increasing wind pressure according to claim 1, wherein: The secondary air duct is provided with two layers of reinforcing ribs perpendicular to the inner wall of the outer shell and the outer wall of the wind pipe body, and each layer of reinforcing rib has seven uniformly arranged reinforcing rib strips.

3. The fan duct structure for increasing wind pressure according to claim 1, wherein: When the distance is greater than 0, the right part of the outer shell wind cavity is provided with an air duct window, and the fan air outlet pressure is increased by more than 30% by setting the secondary air duct, the wind cavity and the air duct window.

4. The fan duct structure for increasing wind pressure according to claim 1, wherein: When the distance is greater than 0, the right part of the outer shell wind cavity is not provided with an air duct window, and the fan air outlet pressure is increased by more than 25% by setting the secondary air duct and the wind cavity.

5. The fan duct structure for increasing wind pressure according to claim 1, wherein: When the distance is equal to 0, the right part of the outer shell wind cavity is provided with an air duct window, and the fan air outlet pressure is increased by more than 20% by setting the air duct window.

6. The fan duct structure for increasing wind pressure according to claim 1, wherein: The outer shell is a cylindrical body.

7. The fan duct structure of claim 1, wherein: The outer shell is a square body.

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