Noise reduction structure of air purifier in factory workshop

Abstract

The utility model discloses a factory workshop air purifier noise reduction structure which comprises a shell, two damping mechanisms are fixedly installed in the shell, a draught fan is installed between the opposite sides of the two damping mechanisms, a filter element is fixedly installed at the bottom of the draught fan, two air inlet covers are installed on the outer side of the bottom of the shell, and the two air inlet covers are fixedly installed on the outer side of the bottom of the shell. And a noise reduction air duct is fixedly mounted in the shell. Vibration noise of air is eliminated in a targeted mode through the noise reduction air channel, then air flow continues to flow upwards to be subjected to noise reduction again through the sound absorption cotton cover, air vibration energy is reduced, airflow noise is lowered and eliminated in a targeted mode, when the draught fan operates, the damping mechanisms on the two sides reduce mechanical vibration of the draught fan, and the noise reduction effect is improved. And noise generated by mechanical vibration is reduced in a targeted manner, so that the device has the advantages that the air noise and the noise of the mechanical vibration are eliminated and protected in a targeted manner, and the overall noise reduction effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of noise reduction technology for air purifiers, specifically, to a noise reduction structure for an air purifier in a factory workshop. Background Technology

[0002] Cleanrooms, also known as clean factories, clean rooms, or dust-free rooms, are specially designed rooms that remove pollutants such as microparticles, harmful air, and bacteria from the air within a certain space, and control the temperature, cleanliness, indoor pressure, airflow speed and distribution, noise and vibration, lighting, and static electricity within a certain required range. Therefore, they have high requirements for the cleanliness of the internal air and are equipped with air purifiers.

[0003] The operating noise generated by air purifiers during operation mainly comes from two core noise sources: turbulent wind noise generated by the exhaust system and structural resonance caused by the motor components. The current solution is generally to add a layer of sound insulation and sound absorption inside the machine to eliminate the noise as a whole. This method is not very targeted, resulting in an unsatisfactory overall noise reduction effect, which ultimately affects the noise reduction efficiency of the whole machine. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a noise reduction structure for an air purifier in a factory workshop, so as to solve the problems in the background technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution;

[0006] A noise reduction structure for an air purifier in a factory workshop includes a housing. Two shock-absorbing mechanisms are fixedly installed inside the housing. A fan is installed between the two shock-absorbing mechanisms on opposite sides. A filter element is fixedly installed at the bottom of the fan. Two air inlet covers are installed on the outer side of the bottom of the housing. A noise-reducing air duct is fixedly installed inside the housing. The noise-reducing air duct has evenly distributed through holes. A top cover is fixedly installed on the top of the housing. A sound-absorbing cotton cover is installed inside the top cover.

[0007] As a further description of the above technical solution: the damping mechanism includes a damping sleeve, a slide rod, two springs, and a connecting frame. The outer side of the damping sleeve is fixedly installed inside the housing, and the outer side of the slide rod is slidably connected to the inside of the damping sleeve. The two ends of the slide rod are evenly and fixedly connected to the connecting frame. The outer side of the fan is fixedly connected to the connecting frame. The two springs are both sleeved on the outer side of the slide rod. The opposite ends of the two springs are fixedly connected to the damping sleeve, and the opposite ends of the two springs are fixedly connected to the connecting frame.

[0008] As a further description of the above technical solution: two sound-absorbing cotton rings are fixedly connected inside the housing, and the two sound-absorbing cotton rings are respectively locked onto the top and bottom of the two connecting brackets.

[0009] As a further description of the above technical solution: a flexible sound-absorbing cotton ring is fixedly connected to the bottom of the noise reduction duct, and the bottom of the flexible sound-absorbing cotton ring is pressed and contacted with the top of the sound-absorbing cotton ring above it.

[0010] As a further description of the above technical solution: the top view of the sound-absorbing cotton cover is annular, and the interior of the sound-absorbing cotton cover is provided with annularly distributed elongated holes.

[0011] As a further description of the above technical solution: the top of the top cover is provided with a dustproof mesh cover.

[0012] Compared with existing technologies, the advantages of this utility model are:

[0013] This solution uses a vibration damping mechanism to specifically reduce the mechanical noise of the fan, and at the same time uses a noise-reducing air duct in conjunction with a sound-absorbing cotton cover to reduce exhaust noise. Thus, the device has the advantages of specifically eliminating and protecting against air noise and mechanical vibration noise, thereby improving the overall noise reduction effect. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a frontal cross-sectional view of the present invention.

[0016] Figure 3 for Figure 2 Enlarged schematic diagram of section A in the middle;

[0017] Figure 4 This is a partial three-dimensional cross-sectional structural diagram of the present invention.

[0018] Explanation of the labels in the diagram:

[0019] 1. Housing; 2. Shock absorption mechanism; 21. Damping sleeve; 22. Slide rod; 23. Spring; 24. Connecting frame; 3. Fan; 4. Air inlet hood; 5. Noise reduction air duct; 51. Flexible sound-absorbing cotton ring; 6. Through hole; 7. Top cover; 71. Dustproof mesh cover; 8. Sound-absorbing cotton cover; 81. Inner elongated hole; 9. Sound-absorbing cotton ring; 10. Filter element. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model;

[0021] Please see Figures 1-4In this utility model, a noise reduction structure for an air purifier in a factory workshop includes a housing 1. Two shock-absorbing mechanisms 2 are fixedly installed inside the housing 1. A fan 3 is installed between the opposite sides of the two shock-absorbing mechanisms 2. A filter element 10 is fixedly installed at the bottom of the fan 3. Two air inlet covers 4 are installed on the outer side of the bottom of the housing 1. A noise reduction air duct 5 is fixedly installed inside the housing 1. The noise reduction air duct 5 has evenly distributed through holes 6. A top cover 7 is fixedly installed on the top of the housing 1. A sound-absorbing cotton cover 8 is installed inside the top cover 7.

[0022] In this invention, the housing 1 serves as the supporting structure for the device. When in use, the fan 3 is activated to adsorb the bottom, driving the airflow upward. A negative pressure zone is formed inside the filter element 10. External air is drawn in by the air intake hoods 4 on both sides, filtered and purified by the filter element 10, and then transported upward by the fan 3. It passes through the noise reduction duct 5 to specifically eliminate the vibration noise of the air. Then, the airflow continues to flow upward and passes through the sound-absorbing cotton cover 8 to further reduce the noise and reduce the vibration energy of the air. This achieves targeted reduction and elimination of airflow noise. Furthermore, when the fan 3 is running, the shock absorption mechanisms 2 on both sides reduce the mechanical vibration of the fan 3, thereby specifically reducing the noise generated by mechanical vibration. Thus, the device has the advantages of targeted elimination and protection against air noise and mechanical vibration noise, improving the overall noise reduction effect. This solves the problem in the prior art that the noise from exhaust and internal mechanical vibration are the main sources of noise. The current method is generally to add a layer of sound insulation and sound absorption inside the body to eliminate them as a whole, which is not very targeted and results in an unsatisfactory overall noise reduction effect.

[0023] Please see Figure 3 The damping mechanism 2 includes a damping sleeve 21, a slide rod 22, two springs 23, and a connecting frame 24. The outer side of the damping sleeve 21 is fixedly installed inside the housing 1. The outer side of the slide rod 22 is slidably connected to the inside of the damping sleeve 21. The two ends of the slide rod 22 are evenly and fixedly connected to the connecting frame 24. The outer side of the fan 3 is fixedly connected to the connecting frame 24. The two springs 23 are both sleeved on the outer side of the slide rod 22. The opposite ends of the two springs 23 are fixedly connected to the damping sleeve 21, and the opposite ends of the two springs 23 are fixedly connected to the connecting frame 24.

[0024] In this invention, the damping sleeve 21 supports the internal sliding rod 22 to support the connecting frame 24, thereby supporting the fan 3. As the fan 3 operates, the vibration generated causes the sliding rod 22 to be aligned inside the damping sleeve 21, and the spring 23 absorbs the vibration, thereby achieving the advantage of reducing noise.

[0025] Please see Figure 3 The housing 1 has two sound-absorbing cotton rings 9 fixedly connected inside, and the two sound-absorbing cotton rings 9 are respectively locked onto the top and bottom of the two connecting brackets 24.

[0026] In this invention, the top and bottom of the connecting frame 24 are sealed with sound-absorbing cotton rings 9 to improve the noise absorption effect.

[0027] Please see Figure 2 Among them, a flexible sound-absorbing cotton ring 51 is fixedly connected to the bottom of the noise reduction duct 5, and the bottom of the flexible sound-absorbing cotton ring 51 is pressed and contacted with the top of the sound-absorbing cotton ring 9 above.

[0028] In this invention, the noise reduction duct 5 and the bottom fan 3 are seamlessly connected by the flexible sound-absorbing cotton ring 51, so that the airflow always passes through the interior of the noise reduction duct 5, and the through hole 6 is used to release the energy of the passing airflow and reduce air vibration.

[0029] Please see Figure 2 and Figure 4 Among them, the top view of the sound-absorbing cotton cover 8 is circular, and the interior of the sound-absorbing cotton cover 8 is provided with annularly distributed inner elongated holes 81.

[0030] In this invention, the inner elongated hole 81 makes the sound-absorbing cotton cover 8 more effective at eliminating vibrations in the exhaust airflow.

[0031] Please see Figure 1 and Figure 2 Among them, the top of the top cover 7 is provided with a dustproof net cover 71.

[0032] In this invention, the dustproof mesh cover 71 is used to protect the inside of the device from dust.

[0033] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A noise reduction structure for an air purifier in a factory workshop, comprising a housing (1), characterized in that: Two shock-absorbing mechanisms (2) are fixedly installed inside the housing (1). A fan (3) is installed between the two shock-absorbing mechanisms (2) on opposite sides. A filter element (10) is fixedly installed at the bottom of the fan (3). Two air intake covers (4) are installed on the outer side of the bottom of the housing (1). A noise-reducing air duct (5) is fixedly installed inside the housing (1). The noise-reducing air duct (5) has evenly distributed through holes (6). A top cover (7) is fixedly installed on the top of the housing (1). A sound-absorbing cotton cover (8) is installed inside the top cover (7).

2. The noise reduction structure for a factory workshop air purifier according to claim 1, characterized in that: The damping mechanism (2) includes a damping sleeve (21), a slide rod (22), two springs (23) and a connecting frame (24). The outer side of the damping sleeve (21) is fixedly installed inside the housing (1). The outer side of the slide rod (22) is slidably connected to the inside of the damping sleeve (21). The two ends of the slide rod (22) are evenly connected to the connecting frame (24). The outer side of the fan (3) is fixedly connected to the connecting frame (24). The two springs (23) are both sleeved on the outer side of the slide rod (22). The opposite ends of the two springs (23) are fixedly connected to the damping sleeve (21), and the opposite ends of the two springs (23) are fixedly connected to the connecting frame (24).

3. The noise reduction structure for a factory workshop air purifier according to claim 2, characterized in that: The housing (1) is internally fixedly connected to two sound-absorbing cotton rings (9), which are respectively engaged at the top and bottom of the two connecting brackets (24).

4. The noise reduction structure for a factory workshop air purifier according to claim 3, characterized in that: The bottom of the noise reduction duct (5) is fixedly connected to a flexible sound-absorbing cotton ring (51), and the bottom of the flexible sound-absorbing cotton ring (51) is pressed and contacted with the top of the sound-absorbing cotton ring (9) above.

5. The noise reduction structure for a factory workshop air purifier according to claim 1, characterized in that: The sound-absorbing cotton cover (8) has a ring-shaped cross-section when viewed from above, and the interior of the sound-absorbing cotton cover (8) has annularly distributed inner elongated holes (81).

6. The noise reduction structure for a factory workshop air purifier according to claim 1, characterized in that: The top of the top cover (7) is provided with a dustproof mesh cover (71).

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