High-strength noise reduction fan

Abstract

The utility model relates to the technical field of fans, in particular to a high-strength noise reduction fan. Comprising a shell, a fan cover, a motor, a wind wheel and a light high-strength noise reduction mechanism. The opening end of the shell is fixedly connected with a fan cover, a motor is arranged in the fan cover, and the power output end of the motor is connected with a wind wheel; light high-strength noise reduction mechanisms are arranged in the first tank body, the second tank body, the third tank body, the fourth tank body, the fifth tank body and the sixth tank body; compared with a double-layer structure in the prior art, under the condition of the same thickness, the silencing cotton layer and the light high-strength layer are lighter in weight, better in silencing effect and higher in strength, so that the use effect of the fan is better; in addition, during production, a single-layer process structure is adopted for preparation, so that the difficulty of the preparation process is reduced, and the production cost is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to a high-strength noise-reducing fan. Background Art

[0002] A fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. Fan is the customary abbreviation for gas compression and gas delivery machinery in China. The fans usually include ventilators, blowers, and wind turbines.

[0003] At present, the fan casings on the market are generally single-layer plastic structures manufactured by iron plate stamping, riveting, cast iron, cast aluminum and injection molding. However, since the hardness of the fan casing with a single-layer plastic structure is average, in order to improve the strength of the fan casing, industry insiders will adopt a one-piece double-layer structure formed by a layer blow molding process to greatly improve its strength and noise reduction effect. However, the use of this structure will have the following problems: (1) The weight is increased, causing inconvenience in use. The thickness of the double-layer structure is generally twice the thickness of the single-layer structure; (2) The difficulty of the preparation process increases. The one-piece double-layer structure formed by the layer blow molding process is more difficult, which will increase the production cost.

[0004] Based on the above problems, we propose a high-strength noise reduction fan. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a high-strength noise reduction fan, which, after being improved, can effectively solve the problems raised in the above-mentioned background technology.

[0006] The technical solution of the utility model is:

[0007] A high-strength noise reduction fan comprises a shell, a wind cover, a motor, a wind wheel and a lightweight high-strength noise reduction mechanism; the open end of the shell is fixedly connected to the wind cover, the inside of the wind cover is provided with a motor, and the power output end of the motor is connected to the wind wheel; the inner wall of the wind cover is provided with a first slot body, a second slot body and a third slot body, and the inner wall of the shell is provided with a fourth slot body, a fifth slot body and a sixth slot body; the insides of the first slot body, the second slot body, the third slot body, the fourth slot body, the fifth slot body and the sixth slot body are all provided with a lightweight high-strength noise reduction mechanism;

[0008] The lightweight and high-strength noise reduction mechanism comprises a noise reduction layer and a lightweight and high-strength layer, and the noise reduction layer and the lightweight and high-strength layer are bonded and fixed; the noise reduction layer is at one end close to the outer shell or the inner wall of the wind shield.

[0009] Furthermore, the noise reduction layer is a sound-absorbing cotton layer.

[0010] Furthermore, the light and high-strength layer includes an epoxy resin layer and a fir fiber bundle, and the fir fiber bundle is arranged inside the epoxy resin layer.

[0011] Furthermore, a connecting groove is provided between the shell and the wind shield, and the shell and the wind shield are fixedly connected by a gasket and screws.

[0012] Furthermore, an air inlet is provided at one end of the shell, and an air outlet is provided at the other end of the shell.

[0013] Furthermore, a grille is installed at the air inlet, and an air outlet pipe is installed at the air outlet, and the air outlet pipe is in a trumpet shape.

[0014] Furthermore, the wind wheel is located inside the shell, and a wind cavity is formed between the wind wheel and the shell, one end of the wind cavity is connected to the air inlet, and the other end of the wind cavity is connected to the air outlet.

[0015] Furthermore, a mounting hole is provided in the inner middle portion of the wind cover, and the motor is fixedly mounted in the mounting hole.

[0016] Furthermore, the shell and the wind shield are both single-layer structures.

[0017] The beneficial effects of the utility model are:

[0018] Compared with the prior art, the utility model sets the outer shell and the wind cover as a single-layer structure, and provides various slots, and installs lightweight and high-strength noise reduction mechanisms in the slots. The lightweight and high-strength noise reduction mechanisms include a sound-absorbing cotton layer and a lightweight and high-strength layer. The sound-absorbing cotton layer can be used for noise reduction and sound absorption. The lightweight and high-strength layer adopts an epoxy resin layer and a fir fiber bundle, and has the characteristics of lightness and high strength. Compared with the double-layer structure in the prior art, under the condition of the same thickness, the sound-absorbing cotton layer and the lightweight and high-strength layer are lighter in weight, have better silencing effect, and have greater strength, so that the use effect of the fan is better; in addition, during production, a single-layer process structure is adopted to reduce the difficulty of its preparation process, thereby further reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of another side of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the utility model after the wind cover is removed;

[0022] Figure 4 This is a schematic diagram of the structure of the utility model after the shell is removed;

[0023] Figure 5 This is a schematic diagram of the structure of the wind hood of the utility model;

[0024] Figure 6 It is a structural schematic diagram of the shell of the utility model.

[0025] In the figure, 1, outer shell; 2, wind cover; 3, motor; 4, wind wheel; 5, light and high-strength noise reduction mechanism; 6, first slot body; 7, second slot body; 8, third slot body; 9, fourth slot body; 10, fifth slot body; 11, sixth slot body; 12, noise reduction layer; 13, light and high-strength layer; 16, connecting slot; 17, gasket; 18, screw; 19, air inlet; 20, air outlet; 21, grille; 22, air outlet duct; 23, air cavity; 24, mounting hole. DETAILED DESCRIPTION

[0026] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings:

[0027] like Figure 1-6 As shown,

[0028] A high-strength noise reduction fan, comprising a shell 1, a wind cover 2, a motor 3, a wind wheel 4 and a lightweight high-strength noise reduction mechanism 5; the shell 1 and the wind cover 2 are both single-layer structures; the open end of the shell 1 is fixedly connected to the wind cover 2, the motor 3 is arranged inside the wind cover 2, and the power output end of the motor 3 is connected to the wind wheel 4; the inner wall of the wind cover 2 is provided with a first slot body 6, a second slot body 7 and a third slot body 8, and the inner wall of the shell 1 is provided with a fourth slot body 9, a fifth slot body 10 and a sixth slot body 11; the first slot body 6, the second slot body 7, the third slot body 8, the fourth slot body 9, the fifth slot body 10 and the sixth slot body 11 are all provided with lightweight high-strength The lightweight and high-strength noise reduction mechanism 5 comprises a noise reduction layer 12 and a lightweight and high-strength layer 13, and the noise reduction layer 12 and the lightweight and high-strength layer 13 are bonded and fixed; the noise reduction layer 12 is one end close to the inner wall of the shell 1 or the wind shield 2; in this embodiment, the shell 1 and the wind shield 2 are set to a single-layer structure, and the shell 1 and the wind shield 2 of the single-layer structure can be formed during the preparation process of the layer blow molding process, and the first trough body 6, the second trough body 7, the third trough body 8, the fourth trough body 9, the fifth trough body 10 and the sixth trough body 11 can be formed, and then the lightweight and high-strength noise reduction mechanism 5 is bonded to the inner wall of each trough body, so as to achieve noise reduction and high-strength performance;

[0029] In addition, the noise reduction layer 12 is a sound-absorbing cotton layer; since the thickness of the double-layer structure is generally twice or more than that of the single-layer structure, under the premise of equal thickness, the lightweight and high-strength noise reduction mechanism 5 will occupy the thickness of the "single-layer structure", and the noise reduction effect of the "single-layer structure" is better because the sound-absorbing cotton has a better sound-absorbing effect than plastic; moreover, the lightweight and high-strength layer 13 includes an epoxy resin layer and a fir fiber bundle. The strength of the lightweight and high-strength layer 13 formed by the epoxy resin layer and the fir fiber bundle is higher than that of plastic; at the same time, the weight of the noise reduction layer 12 and the lightweight and high-strength layer 13 combined is also lower than that of plastic of the same thickness, which is more convenient for users to use.

[0030] As a preferred embodiment; the fir fiber bundle is arranged inside the epoxy resin layer; it can be understood that the preparation method of the lightweight and high-strength layer 13 is: first, the surface of the noise reduction layer 12 is covered with the fir fiber bundle using a mold, and then epoxy resin glue is injected. At this time, the epoxy resin glue will penetrate into various places of the fir fiber bundle, and when it solidifies, a lightweight and high-strength layer 13 can be formed. At this time, the fir fiber bundle is located inside the epoxy resin layer, and the sound-absorbing cotton of the noise reduction layer 12 is also bonded together to form a lightweight and high-strength noise reduction mechanism 5; the lightweight and high-strength noise reduction mechanism 5 can be bonded to the inner wall of each trough body by cutting and other means.

[0031] It is worth mentioning that the noise of the fan mainly comes from the wind wheel 4 and the power output shaft. Therefore, when the first slot body 6, the second slot body 7, the third slot body 8, the fourth slot body 9, the fifth slot body 10 and the sixth slot body 11 are set, the fourth slot body 9, the fifth slot body 10 and the sixth slot body 11 have basically surrounded the wind wheel 4, achieving a good noise reduction and silencing effect; the first slot body 6, the second slot body 7 and the third slot body 8 are arranged at the open end of the wind cover 2, on the one hand, to surround the power output shaft, and on the other hand, to form a gap at the connection between the shell 1 and the wind cover 2 to eliminate noise. Noise can also be reduced, and better noise reduction and silencing effects can be achieved; in addition, the motor 3 will also generate certain noise, but the noise is smaller than the noise mentioned above, and the main part of the wind hood 2 is thicker, and a mounting hole 24 is provided in the inner middle part of the wind hood 2, and the motor 3 is fixedly installed in the mounting hole 24; after the motor 3 is installed, the distance between the motor 3 and the outer wall of the wind hood 2 is sufficient to achieve better noise reduction and silencing effects; similarly, the noise reduction layer 12 and the lightweight high-strength layer 13 are integrated, and the position where the lightweight high-strength layer 13 is arranged is also sufficient to increase the strength of the fan as a whole.

[0032] As a preferred embodiment, a connecting groove 16 is provided between the shell 1 and the wind hood 2, and the shell 1 and the wind hood 2 are fixedly connected by a gasket 17 and a screw 18; the purpose of this design is to facilitate the installation and disassembly of the shell 1 and the wind hood 2.

[0033] As a preferred embodiment; an air inlet 19 is provided at one end of the shell 1, and an air outlet 20 is provided at the other end of the shell 1; a grille 21 is installed at the air inlet 19, and an air outlet pipe 22 is installed at the air outlet 20, and the air outlet pipe 22 is in a trumpet shape; by providing the grille 21, some larger particulate impurities can be filtered, thereby improving the air quality; in addition, the air outlet pipe 22 is in a trumpet shape, which can increase the air outlet range while concentrating the wind force, thereby achieving a better air outlet effect.

[0034] As a preferred embodiment; the wind wheel 4 is located inside the outer shell 1, and a wind cavity 23 is formed between the wind wheel 4 and the outer shell 1, one end of the wind cavity 23 is connected to the air inlet 19, and the other end of the wind cavity 23 is connected to the air outlet 20; it can be understood that the wind cavity 23 not only forms an air duct, but also, the wind cavity 23 is located on the outside of the wind wheel 4, and is also arranged in a circular shape, which can increase the wind pressure, make the wind volume stronger, and thus improve the wind outlet effect.

[0035] The working process of the utility model is as follows: the motor 3 is started to drive the wind wheel 4 to rotate, and negative pressure is formed inside the housing 1 , and air will enter the air cavity 23 from the air inlet 19 and then be discharged from the air outlet 20 .

[0036] It should be pointed out that the main problems in the prior art are: the one-piece double-layer structure formed by the layer blow molding process leads to increased weight, which is inconvenient to use, and the thickness of the double-layer structure is generally twice the thickness of the single-layer structure; moreover, the difficulty of the preparation process increases, and the one-piece double-layer structure formed by the layer blow molding process is more difficult, which in turn increases the production cost;

[0037] Therefore, after the improvement of the present application, the outer shell 1 and the wind cover 2 are set as a single-layer structure, and various grooves are provided, and a lightweight and high-strength noise reduction mechanism 5 is installed in each groove. The lightweight and high-strength noise reduction mechanism 5 includes a sound-absorbing cotton layer and a lightweight and high-strength layer 13. The sound-absorbing cotton layer can be used for noise reduction and sound absorption. The lightweight and high-strength layer 13 adopts an epoxy resin layer and a fir fiber bundle, and has the characteristics of lightness and high strength. Compared with the double-layer structure in the prior art, under the condition of the same thickness, the sound-absorbing cotton layer and the lightweight and high-strength layer 13 are lighter in weight, have better silencing effect, and have greater strength, so that the use effect of the fan is better; in addition, during production, a single-layer process structure is adopted to reduce the difficulty of its preparation process, thereby further reducing the production cost.

[0038] The above implementation modes are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering and technical personnel in the field shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A high-strength noise reduction fan, characterized in that: It comprises a shell, a wind shield, a motor, a wind wheel and a lightweight and high-strength noise reduction mechanism; the open end of the shell is fixedly connected to the wind shield, the inside of the wind shield is provided with a motor, and the power output end of the motor is connected with the wind wheel; the inner wall of the wind shield is provided with a first slot body, a second slot body and a third slot body, and the inner wall of the shell is provided with a fourth slot body, a fifth slot body and a sixth slot body; the insides of the first slot body, the second slot body, the third slot body, the fourth slot body, the fifth slot body and the sixth slot body are all provided with a lightweight and high-strength noise reduction mechanism; The lightweight and high-strength noise reduction mechanism comprises a noise reduction layer and a lightweight and high-strength layer, and the noise reduction layer and the lightweight and high-strength layer are bonded and fixed; the noise reduction layer is at one end close to the outer shell or the inner wall of the wind shield.

2. A high-strength noise reduction fan according to claim 1, characterized in that: The noise reduction layer is a sound-absorbing cotton layer.

3. A high-strength noise reduction fan according to claim 2, characterized in that: The light and high-strength layer comprises an epoxy resin layer and a fir fiber bundle, wherein the fir fiber bundle is arranged inside the epoxy resin layer.

4. A high-strength noise reduction fan according to claim 3, characterized in that: A connecting groove is arranged between the shell and the wind shield, and the shell and the wind shield are fixedly connected by a gasket and screws.

5. A high-strength noise reduction fan according to claim 4, characterized in that: An air inlet is arranged at one end of the shell, and an air outlet is arranged at the other end of the shell.

6. A high-strength noise reduction fan according to claim 5, characterized in that: A grille is installed at the air inlet, and an air outlet pipe is installed at the air outlet, and the air outlet pipe is in a trumpet shape.

7. A high-strength noise reduction fan according to claim 6, characterized in that: The wind wheel is located inside the shell, and a wind cavity is formed between the wind wheel and the shell. One end of the wind cavity is connected to the air inlet, and the other end of the wind cavity is connected to the air outlet.

8. A high-strength noise reduction fan according to claim 7, characterized in that: The inner middle part of the wind cover is provided with a mounting hole, and the motor is fixedly mounted in the mounting hole.

9. A high-strength noise reduction fan according to claim 8, characterized in that: The shell and the wind shield are both single-layer structures.

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