Silencing box and smoke removal cabinet using same

Abstract

The utility model discloses a silencing box which comprises a frame, an air inlet groove is formed in one end of the upper portion of the frame, a partition frame is connected to the side, located below the air inlet groove, of the interior of the frame, an air outlet groove is formed in the side face, located on the side, away from the air inlet groove, of the partition frame, of the frame, and sound absorption cotton is arranged in the frame and the partition frame. The utility model further discloses a smoke removal cabinet using the silencing box. According to the noise reduction box, the flow direction of air in the noise reduction box is in a U shape, then the air is exhausted through the air outlet grooves in the side edges, the sound absorption cotton is arranged in the frame and the partition frames, and therefore effective noise reduction of the air noise is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of smoke removal cabinet technology, specifically relating to a silencer box and a smoke removal cabinet using the silencer box. Background Technology

[0002] Smoke cabinets are common products on the market. Their main function is to use a fan to draw in polluted indoor air, pass it through various filters (for dust removal, odor removal, sterilization, etc.), and then discharge it from a specific vent.

[0003] Wind noise mainly occurs when the fan is running at high speed. Different filters have different internal gaps. When the wind passes through the gaps in the filter or other narrow holes at high speed, the airflow will be obstructed, forming eddies and vibrating on the surface of the obstacle, thus creating a whistling sound.

[0004] Products on the market focus on removing smoke and odors, but neglect the impact of wind noise on the user experience.

[0005] Therefore, there is an urgent need for a silencer box and a smoke removal cabinet that uses the silencer box. Utility Model Content

[0006] The purpose of this utility model is to provide a silencer box to solve the problems mentioned in the background art.

[0007] The present invention provides a soundproof box with the characteristics of sound reduction and noise reduction.

[0008] Another objective of this invention is to provide a smoke removal cabinet that utilizes a silencer box.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a soundproof box, including a frame, an air inlet groove at one end of the frame, a partition frame connected to the inside of the frame below the air inlet groove, an air outlet groove on the side of the frame away from the air inlet groove, and sound-absorbing cotton inside the frame and the partition frame.

[0010] In order to fix the sound-absorbing cotton and to further reduce noise as a second layer of sound-absorbing material, the frame is further covered with a non-woven fabric corresponding to the sound-absorbing cotton.

[0011] To facilitate the installation of electrical boxes, a mounting groove is further provided on the other side of the frame, opposite to the air outlet duct.

[0012] To facilitate wiring for the control board, a cable tray is further provided at the other end of the frame.

[0013] To further achieve effective noise reduction in smoke extraction cabinets, a smoke extraction cabinet using a silencer box is further provided. This includes the silencer box and a cabinet body. The cabinet body has an internal partition plate; above the partition plate is a filter chamber, and below the partition plate is a silencer chamber. The top of the cabinet body has an air inlet communicating with the filter chamber, and an air inlet screen is installed on the air inlet. The filter chamber also contains several filters arranged sequentially from top to bottom. The silencer box is installed inside the silencer chamber on one side near the back of the cabinet body. A fan is installed above the partition plate, and the fan's outlet communicates with the air inlet slot of the silencer box. The cabinet body has air outlets corresponding to the silencer chambers on both sides, located on the sides of the silencer box, and each air outlet is fitted with an air outlet screen.

[0014] In order to receive signals from the detection module, control the operation of the fan, and achieve rapid heat dissipation of the electrical box, the system further includes an electrical box, which is installed in the mounting slot of the silencer box. The control board is installed inside the electrical box, and an access door corresponding to the electrical box is installed on the back of the cabinet.

[0015] In order to control the fan to increase the air volume when the PM2.5 content of the incoming air exceeds the set threshold, a detection module is further installed at the top of the cabinet.

[0016] To accommodate the installation of filters of different specifications and functions, filter mounting seats are further installed on the inner walls of both sides of the filter chamber, and the filter mounting seats are provided with several mounting grooves of different heights.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. The soundproof box of this utility model makes the air flow in a U-shape inside, and then discharges through the air outlet slot on the side. The frame and the partition frame are equipped with sound-absorbing cotton, thereby achieving effective noise reduction of wind noise.

[0019] 2. The frame of this utility model is covered with non-woven fabric corresponding to the sound-absorbing cotton, which can not only fix the sound-absorbing cotton, but also serve as a second layer of sound-absorbing material for further sound absorption.

[0020] 3. This utility model uses a silencer box to reduce noise, effectively reducing the wind noise of the smoke removal cabinet. In addition, the filtered air is blown out through the silencer box and discharged to the air outlets on both sides under the obstruction of the cabinet body, which can further reduce noise.

[0021] 4. This utility model installs the electrical box in the mounting slot of the soundproof box, which can achieve rapid heat dissipation of the electrical box;

[0022] 5. The filter chamber of this utility model has filter screen mounting seats installed on both sides of the inner wall. The filter screen mounting seats are provided with several mounting grooves of different heights, which are suitable for the installation of filters of different specifications and functions. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the silencer box of this utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the frame of this utility model;

[0025] Figure 3 This is an isometric sectional view of the silencer box of this utility model.

[0026] Figure 4 This is a schematic diagram of the structure of the smoke removal cabinet of this utility model;

[0027] Figure 5 This is a structural schematic diagram of the splicing frame of the present utility model;

[0028] Figure 6 This utility model Figure 5 Enlarged structural diagram at point A;

[0029] Figure 7 This is an isometric sectional view of the smoke removal cabinet of this utility model.

[0030] In the diagram: 1. Air inlet duct; 2. Frame; 21. Partition frame; 22. Splicing frame; 3. Sound-absorbing cotton; 4. Air outlet duct; 5. Cable tray; 6. Mounting slot; 7. Cabinet; 8. Air inlet grille; 9. Air outlet grille; 10. Filter mounting base; 11. Fan; 12. Inspection door; 13. Electrical box; 14. Control board; 15. Silencing chamber; 16. Partition plate; 17. Filter chamber; 18. Detection module. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Example 1

[0033] Please see Figures 1-4This embodiment provides the following technical solution: a soundproof box, including a frame 2, the frame 2 is made of wood, an air inlet groove 1 is provided at one end of the frame 2, a partition 21 is connected to the side of the frame 2 below the air inlet groove 1, an air outlet groove 4 is provided on the side of the frame 2 away from the air inlet groove 1, and sound-absorbing cotton 3 is provided inside the frame 2 and the partition 21.

[0034] By adopting the above technical solution, the soundproof box of this utility model makes the airflow inside U-shaped. The sound waves are reflected through the U-shaped channel, consuming energy and achieving a soundproofing effect. Then, the sound is discharged through the side air outlet 4. Furthermore, the frame 2 and the partition 21 are both equipped with sound-absorbing cotton 3, thereby achieving effective soundproofing and noise reduction of wind noise.

[0035] Specifically, the frame 2 is covered with a non-woven fabric corresponding to the sound-absorbing cotton 3, such as... Figure 4 As shown, the frame 2 is composed of multiple splicing frames 22. In this embodiment, the sound-absorbing cotton 3 is placed inside the cavity of the splicing frame 22, and then the splicing frame 22 is wrapped with non-woven fabric. The non-woven fabric and the splicing frame 22 are connected by staples.

[0036] By adopting the above technical solution, the sound-absorbing cotton 3 can be fixed and used as a second layer of sound-absorbing material for further sound absorption.

[0037] Specifically, the other side of the frame 2 is provided with a mounting groove 6 opposite to the air outlet groove 4.

[0038] The above technical solution is used to install electrical box 13.

[0039] Specifically, a wire groove 5 is provided at the other end above frame 2.

[0040] The above technical solution is used for the wiring of the control board 14.

[0041] Example 2

[0042] Please see Figures 5-7This embodiment provides the following technical solution: a smoke removal cabinet using a silencer box, including a silencer box and a cabinet body 7. A partition plate 16 is installed inside the cabinet body 7. Above the partition plate 16 is a filter chamber 17, and below the partition plate 16 is a silencer chamber 15. The top of the cabinet body 7 has an air inlet communicating with the filter chamber 17. An air inlet mesh cover 8 is installed on the air inlet. The air inlet mesh cover 8 has a long strip structure, providing a larger air intake area, reducing exhaust loss, and preventing children's fingers from entering. Several... Three filters are arranged sequentially from top to bottom: a coarse filter, an activated carbon odor-removing filter, and a high-efficiency filter. The silencer box is installed inside the silencer cavity 15 on one side near the back of the cabinet 7. A fan 11 is installed above the partition plate 16. The fan 11 uses a Lichi DC motor with a 235 plastic air duct. The air outlet of the fan 11 is connected to the air inlet slot 1 of the silencer box. Air outlets corresponding to the silencer cavity 15 are provided on both sides of the cabinet 7. The air outlets are located on the sides of the silencer box, and an air outlet cover 9 is installed on the air outlet.

[0043] By adopting the above technical solution, the noise of the smoke removal cabinet is effectively reduced by using the silencer box. In addition, the filtered air is blown out through the silencer box and discharged to the air outlets on both sides under the obstruction of the cabinet body 7, which can further reduce noise.

[0044] Specifically, it also includes an electrical box 13, which is installed in the mounting slot 6 of the silencer box. The electrical box 13 has a control board 14 installed inside. The back of the cabinet 7 has an inspection door 12 corresponding to the electrical box 13. The control board 14 is a DJH-7115A type Lichi motor control board.

[0045] By adopting the above technical solution, the control board 14 is used to receive signals from the detection module 18 and control the operation of the fan 11; the present invention installs the electrical box 13 in the mounting slot 6 of the silencer box, which can achieve rapid heat dissipation of the electrical box 13.

[0046] Specifically, a detection module 18 is installed at the top of cabinet 7. The detection module 18 is a PM2.5 detection module, and the PM2.5 detection module uses a TZH03 dust sensor.

[0047] By adopting the above technical solution, when the PM2.5 content detected in the incoming air exceeds the set threshold, the fan 11 is controlled to increase the air volume.

[0048] Specifically, filter mounting seats 10 are installed on the inner walls of both sides of the filter chamber 17, and the filter mounting seats 10 are provided with several mounting grooves of different heights.

[0049] By adopting the above technical solution, it is applicable to the installation of filters of different specifications and functions.

[0050] In summary, the silencer box of this invention directs the airflow in a U-shape within its interior, then discharges it through the side air outlet 4. Furthermore, sound-absorbing cotton 3 is provided within both the frame 2 and the partition frame 21, effectively reducing wind noise. The frame 2 is covered with non-woven fabric corresponding to the sound-absorbing cotton 3, which not only secures the cotton 3 but also serves as a second layer of sound-absorbing material for further noise reduction. This invention effectively reduces wind noise in the smoke purifier cabinet through the silencer box. Additionally, the filtered air, after being blown out of the silencer box, is discharged to the side air outlets under the obstruction of the cabinet body 7, further reducing noise. The electrical box 13 is installed in the mounting slot 6 of the silencer box, enabling rapid heat dissipation. Filter mounting seats 10 are installed on the inner walls of both sides of the filter chamber 17, each with several mounting slots of different heights suitable for installing filters of different specifications and functions.

[0051] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sound attenuation box, characterized by: The frame includes an air inlet slot at one end of the frame, a partition frame connected to the inside of the frame below the air inlet slot, and an air outlet slot on the side of the frame away from the air inlet slot. Sound-absorbing cotton is installed inside both the frame and the partition frame.

2. A sound attenuation box according to claim 1, wherein: The frame is covered with non-woven fabric containing corresponding sound-absorbing cotton.

3. A sound attenuation box according to claim 1, wherein: The other side of the frame has a mounting groove opposite to the air outlet duct.

4. A sound attenuation box according to claim 1, wherein: A cable channel is provided at the other end of the frame.

5. A smoke removal cabinet using a silencer box, characterized in that: The silencing box, as described in any one of claims 1-4, further includes a cabinet. A partition is installed inside the cabinet, with a filter chamber above the partition and a silencing chamber below the partition. An air inlet communicating with the filter chamber is located at the top of the cabinet, and an air inlet screen is installed on the air inlet. Several filters arranged sequentially from top to bottom are also installed inside the filter chamber. The silencing box is installed inside the silencing chamber on one side near the back of the cabinet. A fan is installed above the partition, and the fan outlet communicates with the air inlet slot of the silencing box. Air outlets corresponding to the silencing chamber are located on both sides of the cabinet, and air outlet screens are installed on the sides of the silencing box.

6. A fume cupboard incorporating a sound attenuation box according to claim 5, wherein: It also includes an electrical box, which is installed in the mounting slot of the silencer box. The electrical box contains a control board, and the back of the cabinet has an access door corresponding to the electrical box.

7. A fume exhaust cabinet using a soundproof box according to claim 5, characterized in that: A detection module is installed at the top of the cabinet.

8. A fume exhaust cabinet using a soundproof box according to claim 5, characterized in that: Filter mounting seats are installed on the inner walls of both sides of the filter chamber, and the filter mounting seats have several mounting slots of different heights.

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