Exhaust fan with mute function

Abstract

The utility model relates to the technical field of exhaust fans, and discloses an exhaust fan with a mute function, which comprises a fixing plate, a shell is fixed on one side of the fixing plate, a fan blocking net is fixed on the surface of one side of the shell, an annular rubber pad is arranged on the other side of the fixing plate, and an annular fixing plate is fixed on the other side of the fixing plate. An annular sleeve gasket is arranged on the annular outer surface of the annular fixing plate, a blocking net is fixed to one side of the annular fixing plate, a fixing frame is fixed to the interior of the annular fixing plate, a motor is fixed to the interior of the fixing frame, and fan blades are rotationally arranged at one end of the motor. The airflow noise is reduced. Meanwhile, high-quality materials and a precision machining technology are adopted, mechanical noise is guaranteed to be minimized, shock absorption and noise reduction measures and an intelligent control technology are introduced, the rotating speed and the working mode of the fan are automatically adjusted, and airflow noise and mechanical noise generated in the operation process of the exhaust fan are remarkably reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaust fans, in particular to an exhaust fan with a mute function. Background Art

[0002] Silent exhaust fans are an important innovation in the field of ventilation equipment in recent years. Their background technology is mainly based on aerodynamics, material science and intelligent control technology. By optimizing the design of impellers and air inlets and outlets, the turbulence and pressure changes of airflow during transmission are reduced, thereby greatly reducing airflow noise. At the same time, high-quality materials and precision processing technology are used to ensure that the mechanical noise generated during the operation of the fan is minimized, and shock reduction and noise reduction measures are implemented in key parts such as bearings and gears. In addition, the silent exhaust fan also introduces noise silencing technology, using sound-absorbing materials and silencing cavity structures to effectively absorb and isolate noise propagation. The application of intelligent control systems can automatically adjust the fan speed and working mode according to environmental noise changes and user needs, and achieve more accurate noise control. The comprehensive application of these technologies enables silent exhaust fans to provide an unprecedented low-noise experience while ensuring efficient ventilation, meeting the high requirements of modern buildings and industrial sites for a quiet and comfortable environment. The existing technology has high noise, poor shock absorption effect, and low ventilation efficiency, which needs to be improved. For this reason, we propose an exhaust fan with a silent function. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the deficiencies in the prior art, the utility model provides an exhaust fan with a mute function to solve the above-mentioned problems.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an exhaust fan with a silent function, comprising a fixed plate, a shell is fixed on one side of the fixed plate, a fan baffle is fixed on one side surface of the shell, an annular rubber pad is provided on the other side of the fixed plate, an annular fixed plate is fixed on the other side of the fixed plate, an annular sleeve pad is provided on the annular outer surface of the annular fixed plate, a baffle is fixed on one side of the annular fixed plate, a fixing frame is fixed inside the annular fixed plate, a motor is fixed inside the fixing frame, and fan blades are rotatably provided at one end of the motor.

[0007] Preferably, the width of the annular sleeve is smaller than the width of the annular fixing plate.

[0008] Preferably, a protrusion is provided on one side surface of the shell, and a circular hole is provided on one side surface of the shell.

[0009] Preferably, a square hole is provided inside the fixing plate.

[0010] Preferably, the width of the annular rubber pad is greater than the width of the fixing plate.

[0011] Preferably, the baffle is square in shape, and the fan baffle is circular in shape.

[0012] Preferably, rectangular holes are provided at both ends of the motor, and the surface of the fan blade is arc-shaped.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides an exhaust fan with a silent function, which has the following beneficial effects:

[0015] 1. This is an exhaust fan with a silent function. The utility model significantly reduces the airflow noise and mechanical noise generated by the exhaust fan during operation by optimizing the impeller design, adopting low-noise materials and introducing noise reduction technology, such as an annular rubber pad and a silencer cavity structure, providing users with a quieter and more comfortable use environment.

[0016] 2. This exhaust fan with a silent function uses an annular rubber pad and an annular sleeve pad as shock-absorbing elements to effectively absorb the vibration energy generated when the fan is running, reduce the impact and wear between mechanical parts, thereby extending the overall service life of the exhaust fan and reducing maintenance costs.

[0017] 3. This exhaust fan with silent function ensures stable output and efficient circulation of air volume through precisely designed motor and fan blade combination and reasonable air flow channel layout, meeting the ventilation effect requirements of various occasions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is an isometric schematic diagram of the utility model;

[0020] Figure 3 It is a schematic side view of the utility model.

[0021] In the figure: 1. fan blades; 2. motor; 3. fixing bracket; 4. annular rubber pad; 5. annular sleeve pad; 6. annular fixing plate; 7. fixing plate; 8. casing; 9. fan guard net; 10. guard net. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-3 An exhaust fan with a silent function includes a fixing plate 7, a shell 8 is fixed to one side of the fixing plate 7, a fan baffle 9 is fixed to one side surface of the shell 8, an annular rubber pad 4 is provided on the other side of the fixing plate 7, an annular fixing plate 6 is fixed to the other side of the fixing plate 7, an annular sleeve pad 5 is provided on the annular outer surface of the annular fixing plate 6, a baffle 10 is fixed to one side of the annular fixing plate 6, a fixing frame 3 is fixed inside the annular fixing plate 6, a motor 2 is fixed inside the fixing frame 3, and a fan blade 1 is rotatably provided at one end of the motor 2.

[0024] Furthermore, the width of the annular sleeve 5 is smaller than the width of the annular fixing plate 6 .

[0025] Furthermore, a protrusion is provided on one side surface of the shell 8, and a circular hole is provided on one side surface of the shell 8.

[0026] Furthermore, a square hole is provided inside the fixing plate 7 .

[0027] Furthermore, the width of the annular rubber pad 4 is greater than the width of the fixing plate 7 .

[0028] Furthermore, the shape of the baffle 10 is square, and the shape of the fan baffle 9 is circular.

[0029] Furthermore, rectangular holes are provided at both ends of the motor 2, and the surface of the fan blade 1 is arc-shaped.

[0030] Working principle: When the motor 2 is started, the fan blades 1 rotate at high speed, generating a strong airflow. This airflow passes through the carefully designed air inlets and outlets and internal channels to achieve efficient and silent ventilation. In this process, the fan screen 9 and the screen 10 work together to prevent external foreign matter from entering the fan, while reducing the turbulence and noise of the airflow. The annular rubber pad 4 and the annular sleeve pad 5 effectively absorb and isolate the vibration and noise during the operation of the fan, so that the entire exhaust fan can achieve an unprecedented low-noise experience while maintaining efficient ventilation. The protrusions and circular holes on the outer casing 8 may be used for fixing, connection or heat dissipation, depending on the actual application scenario.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An exhaust fan with a mute function, comprising a fixing plate (7), characterized in that: A housing (8) is fixed to one side of the fixing plate (7), a fan baffle (9) is fixed to one side surface of the housing (8), an annular rubber pad (4) is provided on the other side of the fixing plate (7), an annular fixing plate (6) is fixed to the other side of the fixing plate (7), an annular sleeve pad (5) is provided on the annular outer surface of the annular fixing plate (6), a baffle (10) is fixed to one side of the annular fixing plate (6), a fixing frame (3) is fixed inside the annular fixing plate (6), a motor (2) is fixed inside the fixing frame (3), and a fan blade (1) is rotatably provided at one end of the motor (2).

2. The exhaust fan with a silent function according to claim 1, characterized in that: The width of the annular sleeve gasket (5) is smaller than the width of the annular fixing plate (6).

3. The exhaust fan with a silent function according to claim 1, characterized in that: A protrusion is provided on one side surface of the shell (8), and a circular hole is provided on one side surface of the shell (8).

4. The exhaust fan with a silent function according to claim 1, characterized in that: A square hole is provided inside the fixing plate (7).

5. The exhaust fan with a silent function according to claim 1, characterized in that: The width of the annular rubber pad (4) is greater than the width of the fixing plate (7).

6. The exhaust fan with a silent function according to claim 1, characterized in that: The baffle (10) is in a square shape, and the fan baffle (9) is in a circular shape.

7. The exhaust fan with a silent function according to claim 1, characterized in that: Rectangular holes are provided at both ends of the motor (2), and the surface of the fan blade (1) is arc-shaped.

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