Sound insulation sealing structure of machine room fire exit door
By using a wavy sealant strip and an active sound silencer mechanism on the fire door of the computer room, combined with multi-layer sound insulation materials, a double active sound silencer system is formed, which solves the noise leakage problem caused by the sealant strip gap, and achieves efficient noise cancellation and sound insulation effects.
Patent Information
- Application Number
- CN202422585528.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-10-25
AI Technical Summary
There are tiny gaps between the sealant strips of the fire doors in the existing machine room, resulting in noise leakage and inability to completely sound insulation.
The sealant strip and active sound silencer mechanism are used with a wave structure, combined with multi-layer sound insulation materials, and a dual active sound silencer system is formed using a microphone and speakers to cancel noise through reverse sound waves.
It significantly reduces noise leakage at the door cracks, improves the sound insulation performance of the fire door in the computer room, ensures noise isolation between the inside and outside of the door, and provides a quiet working environment.
Smart Images
Figure CN223281965U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sound insulation, in particular to a sound insulation sealing structure of a fire door in a machine room. Background Art
[0002] "Active noise cancellation" (ANC) is the abbreviation of Active Noise Cancellation in English. It collects ambient noise through a microphone, analyzes it digitally, and processes it with reverse sound waves to achieve cancellation between sound waves and complete noise reduction.
[0003] The existing sound insulation sealing structure of the fire door of the computer room generally adopts the method of filling sound insulation materials to deal with noise. However, the gaps in the fire door are often the main places for noise leakage. Therefore, the gaps need to be sealed when strengthening the sound insulation structure. At present, the gaps are generally sealed with sound insulation strips. This sealing method is still not able to completely soundproof because the sound insulation strips themselves are also a medium for sound transmission. At the same time, there are still tiny gaps between the sealing strips. Utility Model Content
[0004] Based on this, the purpose of the present invention is to provide a sound insulation sealing structure for a machine room fire door to solve the technical problem that there are still tiny gaps between the sealing strips, making it still impossible to completely soundproof.
[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a sound insulation sealing structure for a machine room fire door, comprising a door body and a door frame, wherein an installation cavity is provided inside the door body, and a first sealing strip is fixedly connected to the four sides of the door body, wherein the first sealing strip is in a wavy structure, and a first active silencer mechanism is provided in the recess of the first sealing strip, wherein the first active silencer mechanism comprises a first sound pickup microphone and a first speaker, and the first sound pickup microphone and the first speaker are electrically connected to a controller via a wire.
[0006] By adopting the above technical solution, the first sealing strip fixedly connected around the door body can effectively reduce noise leakage at the door gap, and its wave structure increases the sealing contact area and improves the sealing effect.
[0007] Furthermore, the controller is connected to a second active noise cancellation mechanism via a wire, and the second active noise cancellation mechanism includes a second sound pickup microphone and a second speaker.
[0008] By adopting the above technical solution, the controller not only manages the first active silencer mechanism, but also connects the second active silencer mechanism through a wire, realizing the function of dual active silencer. When noise enters the inside of the door body, the second pickup microphone can quickly capture these sound signals.
[0009] Furthermore, a rubber layer is provided inside the installation cavity, and glass wool, a sound insulation board and a high-density plastic board are provided between the rubber layer and one side of the installation cavity.
[0010] By adopting the above technical solution, the rubber layer arranged inside the installation cavity plays a basic sound insulation and shock absorption role, effectively blocking the noise propagation path. The glass wool, sound insulation board and high-density plastic board added between the rubber layer and one side of the installation cavity constitute a multi-layer sound insulation structure.
[0011] Furthermore, the second loudspeaker is fixed on the inner wall of the other side of the installation cavity, and the second sound pickup microphone is fixed on the rubber layer.
[0012] By adopting the above technical solution, the second speaker is cleverly fixed on the inner wall on the other side of the installation cavity, so that the canceling sound waves released by the second speaker can act more directly and effectively on the noise entering the door body, thereby improving the efficiency of noise cancellation.
[0013] Furthermore, the first active noise reduction mechanism is provided in plurality, and the plurality of first active noise reduction mechanisms are linearly and equidistantly arranged.
[0014] By adopting the above technical solution, the provision of multiple first active silencer mechanisms significantly increases the ability to capture and offset noise at door gaps, because each mechanism can work independently and accurately process local noise.
[0015] Furthermore, a stopper is provided on the side wall of the installation cavity, and a plurality of the stoppers are provided, and the plurality of the stoppers have the effect of pressing the rubber layer.
[0016] By adopting the above technical solution, the multiple blocks provided on the side wall of the installation cavity can effectively compress the rubber layer, ensuring the stability and sealing of the rubber layer in the installation cavity, thereby preventing noise from leaking from the gap between the rubber layer and the side wall of the installation cavity.
[0017] Furthermore, a second sealing strip is provided on one side of the door frame, and the second sealing strip is in a wavy structure.
[0018] By adopting the above technical solution, the second sealing strip provided on one side of the door frame cooperates with the first sealing strip on the door body. When the door is closed, the two can fit tightly together to form an effective sealing structure, further reducing noise leakage from the door gap.
[0019] In summary, the present invention has the following beneficial effects:
[0020] 1. The present invention provides a first active noise reduction mechanism. When the door body and door frame are closed, the first sealing strip and the second sealing strip are pressed together to form a small cavity, which provides an effective working environment for the first pickup microphone and the first speaker. At the same time, when noise propagates through the door gap, the first pickup microphone can quickly capture these noise signals and control the first speaker to release opposite sound waves through the controller to cancel them out. This significantly reduces the noise propagation through the door gap, improves the sound insulation performance of the fire door in the equipment room, and ensures the effective isolation of noise inside and outside the door body.
[0021] 2. The utility model constructs a multi-layer sound insulation structure inside the door body by setting a second active sound attenuation mechanism, including glass wool, sound insulation board and high-density plastic board. These materials can effectively absorb and reduce the energy of noise and reduce the transmission intensity of noise. When the attenuated noise enters the rubber layer, the second pickup microphone can accurately capture these sound signals and control the second speaker through the controller to release opposite sound waves to offset them, thereby further reducing noise. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0023] Figure 2 This is a schematic diagram of a half-section structure of the present utility model;
[0024] Figure 3 For this utility model Figure 2 A schematic diagram of the structure enlarged in the middle;
[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the door body of the present invention.
[0026] In the figure: 1. door body; 2. door frame; 3. installation cavity; 4. first sealing strip; 5. first active noise reduction mechanism; 501. first sound pickup microphone; 502. first speaker; 503. controller; 6. second active noise reduction mechanism; 601. second sound pickup microphone; 602. second speaker; 7. rubber layer; 8. glass wool; 9. sound insulation board; 10. high-density plastic board; 11. block; 12. second sealing strip. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0028] The following describes an embodiment of the present invention based on its overall structure.
[0029] Example 1:
[0030] A sound insulation sealing structure for a machine room fire door, such as Figures 1-4 As shown, it includes a door body 1 and a door frame 2, an installation cavity 3 is provided inside the door body 1, and a first sealing strip 4 is fixedly connected to the four sides of the door body 1. The first sealing strip 4 is in a wavy structure, and a first active sound-absorbing mechanism 5 is provided at the recess of the first sealing strip 4. The first active sound-absorbing mechanism 5 includes a first sound pickup microphone 501 and a first loudspeaker 502. The first sound pickup microphone 501 and the first loudspeaker 502 are electrically connected to the controller 503 through a wire. The first active sound-absorbing mechanism 5 provided at the recess of the first sealing strip 4 can capture the noise at the door gap in real time, receive the noise signal through the first sound pickup microphone 501, and after processing by the controller 503, control the first loudspeaker 502 to release the opposite sound wave to offset it, thereby significantly reducing the noise propagation at the door gap and enhancing the sound insulation performance of the fire door of the machine room.
[0031] See Figure 4 There are multiple first active silencer mechanisms 5, and the multiple first active silencer mechanisms 5 are arranged linearly and equidistantly. These mechanisms are arranged linearly and equidistantly, ensuring that all parts of the door gap can receive uniform sound insulation treatment, avoiding sound insulation blind spots caused by uneven layout, and improving the overall sound insulation performance of the machine room fire door.
[0032] See Figure 2 A stopper 11 is provided on the side wall of the mounting cavity 3 , and a plurality of stoppers 11 are provided. The plurality of stoppers 11 have the effect of pressing the rubber layer 7 . The uniform distribution of the plurality of stoppers 11 also enhances the fixing effect of the rubber layer 7 and improves the structural strength and stability of the rubber layer 7 .
[0033] See Figure 2 A second sealing strip 12 is provided on one side of the door frame 2. The second sealing strip 12 has a wavy structure. The wavy structure of the second sealing strip 12 increases the contact area between the sealing strips, improves the sealing effect, and can better adapt to the slight deformation between the door body 1 and the door frame 2, maintaining long-term sealing performance.
[0034] The implementation principle of the present invention is as follows: first, when the door body 1 and the door frame 2 are closed, the first sealing strip 4 and the second sealing strip 12 are pressed against each other to form a small cavity. At this time, the first sound pickup microphone 501 and the first speaker 502 are inside the small cavity formed by the first sealing strip 4 and the second sealing strip 12. When the internal noise propagates along the door gap, it is first received by the first sound pickup microphone 501. Then, the controller 503 controls the opposite sound waves released by the first speaker 502 to offset the noise, thereby reducing the noise.
[0035] Example 2:
[0036] See Figure 2 The controller 503 is connected to the second active silencer mechanism 6 through a wire. The second active silencer mechanism 6 includes a second sound pickup microphone 601 and a second speaker 602. The controller 503 will respond immediately and control the second speaker 602 to release a sound wave with a phase opposite to the captured noise, and perform precise noise reduction, further enhancing the sound insulation capability of the fire door of the machine room, and ensuring the effective isolation of noise inside and outside the door body, providing a quieter working environment for the machine room.
[0037] See Figure 2 A rubber layer 7 is provided inside the installation cavity 3, and glass wool 8, sound insulation board 9 and high-density plastic board 10 are provided between the rubber layer 7 and one side of the installation cavity 3. The glass wool 8 can absorb high-frequency noise, the sound insulation board 9 has a good isolation effect on medium and low-frequency noise, and the high-density plastic board 10 further enhances the sound insulation performance of the entire structure, which not only improves the sound insulation of the fire door of the computer room, but also ensures the stability and durability of the door structure, providing a highly efficient sound insulation barrier for the computer room.
[0038] See Figure 2 The second speaker 602 is fixed on the inner wall on the other side of the installation cavity 3, and the second sound pickup microphone 601 is fixed on the rubber layer 7. The second sound pickup microphone 601 is fixed on the rubber layer 7. Since the rubber layer 7 itself has certain sound insulation and shock absorption properties, this helps to reduce interference and noise during the sound pickup process, so that the second sound pickup microphone 601 can more accurately capture the noise signal inside the door body, thereby providing more accurate noise information to the controller 503, further improving the accuracy and effectiveness of the active noise reduction system.
[0039] The implementation principle of the present invention is as follows: first, when noise enters through the door body 1, it first passes through the glass wool 8, the sound insulation board 9 and the high-density plastic board 10, so that the energy of the noise is weakened, and then the sound enters the rubber layer 7 and is received by the second pickup microphone 601. Then, the controller 503 controls the second speaker 602 to release the opposite sound waves to offset the noise, thereby reducing the noise.
[0040] Parts not involved in the present invention are the same as those in the prior art or can be implemented by using the prior art, and will not be described in detail here.
[0041] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not limitations on the present invention. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and purpose of the present invention, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.
Claims
1. A sound insulation sealing structure for a machine room fire door, characterized by: The invention comprises a door body (1) and a door frame (2); a mounting cavity (3) is provided inside the door body (1); a first sealing strip (4) is fixedly connected to the periphery of the door body (1); the first sealing strip (4) is in a wavy structure; a first active noise reduction mechanism (5) is provided in a recess of the first sealing strip (4); the first active noise reduction mechanism (5) comprises a first sound pickup microphone (501) and a first loudspeaker (502); the first sound pickup microphone (501) and the first loudspeaker (502) are electrically connected to a controller (503) via a wire.
2. The sound insulation sealing structure of the machine room fire door according to claim 1, characterized in that: The controller (503) is connected to a second active noise cancellation mechanism (6) via a wire, and the second active noise cancellation mechanism (6) includes a second sound pickup microphone (601) and a second speaker (602).
3. The sound insulation sealing structure of the machine room fire door according to claim 1, characterized in that: A rubber layer (7) is provided inside the installation cavity (3), and glass wool (8), a sound insulation board (9) and a high-density plastic board (10) are provided between the rubber layer (7) and one side of the installation cavity (3).
4. The sound insulation sealing structure of the machine room fire door according to claim 2, characterized in that: The second loudspeaker (602) is fixed on the inner wall of the other side of the installation cavity (3), and the second sound pickup microphone (601) is fixed on the rubber layer (7).
5. The sound insulation sealing structure of the machine room fire door according to claim 1, characterized in that: A plurality of the first active noise reduction mechanisms (5) are provided, and the plurality of the first active noise reduction mechanisms (5) are linearly and equidistantly arranged.
6. The sound insulation sealing structure of the machine room fire door according to claim 1, characterized in that: A stopper (11) is provided on the side wall of the installation cavity (3), and a plurality of the stoppers (11) are provided. The plurality of the stoppers (11) have the effect of pressing the rubber layer (7).
7. The sound insulation sealing structure of the machine room fire door according to claim 1, characterized in that: A second sealing strip (12) is provided on one side of the door frame (2), and the second sealing strip (12) is in a wavy structure.