Noise reduction door plate of air compressor and air compressor

Abstract

The utility model provides a noise reduction door plate of an air compressor. The noise reduction door plate comprises a main plate, glass wool, a partition plate, noise reduction cotton, a support, a porous metal plate, a rubber sealing strip, an upper cover plate and a lower cover plate. The upper cover plate and the lower cover plate are welded to the upper side and the lower side of the main plate in the height direction, the partition plate is welded to the inner side of the main plate in the thickness direction, and the space between the partition plate and the main plate is filled with the glass wool. Silencing cotton is attached to the side, away from the main plate, of the partition plate, a porous metal plate is arranged on the side, away from the partition plate, of the silencing cotton, and the porous metal plate is fixed to a support welded to the partition plate. And a rubber sealing strip is arranged on the inner folding edge of the main plate. The utility model further provides an air compressor which is provided with the noise reduction door plate.

Description

Technical Field

[0001] This utility model relates to an air compressor. Background Technology

[0002] Air compressors are general-purpose equipment widely used in various industrial sectors. They generate significant noise during operation, primarily due to the increased movement of gas molecules during air compression, which can create turbulence or shock waves. This causes vibrations in compressor components, producing mechanical noise. Friction between components also generates noise. Air compressor noise not only threatens human health but can also affect production efficiency and community relations. Therefore, comprehensive measures such as sound insulation, vibration reduction, and equipment upgrades are needed to reduce noise levels to a safe range. Utility Model Content

[0003] The main technical problem to be solved by this utility model is to provide a noise reduction door panel for an air compressor, which can effectively reduce the noise of the air compressor.

[0004] To solve the above-mentioned technical problems, this utility model provides a noise reduction door panel for an air compressor, including: a main board, glass wool, partition, sound-absorbing cotton, bracket, perforated metal plate, rubber sealing strip, upper cover plate and lower cover plate.

[0005] The upper and lower cover plates are welded to the upper and lower sides of the main board along the height direction, the partition is welded to the inner side of the main board along the thickness direction, and the glass wool is filled between the partition and the main board; the side of the partition away from the main board is covered with sound-absorbing cotton, and the side of the sound-absorbing cotton away from the partition is provided with a perforated metal plate, and the perforated metal plate is fixed to the bracket welded to the partition; a rubber sealing strip is installed on the inner folded edge of the main board.

[0006] In a preferred embodiment: the support is arranged circumferentially along the partition.

[0007] This utility model also provides an air compressor equipped with the noise reduction door panel described above.

[0008] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:

[0009] This invention provides a noise-reducing door panel for an air compressor. When sound waves enter, they propagate through the pores and are repeatedly refracted and reflected between the fibers, consuming sound energy. Sound-absorbing cotton is attached to the partition, and a porous metal plate is mounted above it, fixed to a bracket welded to the partition. The sound-absorbing cotton is a porous sound-absorbing material that absorbs sound waves and reduces noise, primarily addressing low-to-mid-frequency noise. The porous metal plate itself has a certain mass, reflecting some sound waves. Combined with sound absorption, this achieves a "dual effect of sound insulation and absorption" to enhance noise reduction. A rubber sealing strip is installed on the inner edge of the main panel. Its function is to fit tightly against the air compressor's outer frame to prevent noise from escaping through gaps and to suppress vibration-induced noise. Therefore, a multi-layered sound insulation design is achieved, effectively reducing noise. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the door panel in a preferred embodiment of the present utility model;

[0011] Figure 2 This is a schematic diagram of the door panel from another angle in a preferred embodiment of this utility model;

[0012] Figure 3 for Figure 2 A magnified view of a portion of the image;

[0013] Figure 4 This is a cross-sectional view of the door panel in a preferred embodiment of the present invention. Detailed Implementation

[0014] To make the technical solution and features of this utility model clearer, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific examples. It should be understood that these examples are only for illustrating this utility model and are not intended to limit the scope of this utility model. After reading this utility model, any modifications of this utility model by those skilled in the art in various equivalent forms fall within the scope defined by the appended claims.

[0015] refer to Figures 1-4 This embodiment provides a noise reduction door panel for an air compressor, including: a main board 1, glass wool 2, a partition 3, sound-absorbing cotton 4, a bracket 5, a perforated metal plate 6, a rubber sealing strip 7, an upper cover plate 8, and a lower cover plate 9.

[0016] The upper cover plate 8 and the lower cover plate 9 are welded to the upper and lower sides of the main board 1 along the height direction. The partition plate 3 is welded to the inner side of the main board 1 along the thickness direction, and the glass wool 2 is filled between the partition plate 3 and the main board 1. The sound-absorbing cotton 4 is attached to the side of the partition plate 3 away from the main board, and a perforated metal plate 6 is provided on the side of the sound-absorbing cotton 4 away from the partition plate 3. The perforated metal plate 6 is fixed to the bracket 6 welded to the partition plate 3. A rubber sealing strip 7 is installed on the inner folded edge of the main board 1.

[0017] The bracket 5 is arranged around the circumference of the partition 3.

[0018] In the aforementioned noise-reducing door panel, when sound waves enter, they propagate through the pores and are repeatedly refracted and reflected between the fibers, consuming sound energy. Sound-absorbing cotton 4 is attached to the partition 3, and a porous metal plate 6 is mounted above it, fixed to a bracket 5 welded to the partition 3. The sound-absorbing cotton 4 is a porous sound-absorbing material that absorbs sound waves and reduces noise, primarily addressing low-to-mid-frequency noise. The porous metal plate 6 itself has a certain mass, reflecting some sound waves, combining with sound absorption to achieve a "dual effect of sound insulation and absorption" to enhance noise reduction. A rubber sealing strip 7 is installed on the inner folded edge of the main panel 1, its function being to tightly fit against the air compressor's outer frame to prevent noise from escaping through gaps and to suppress vibration-induced noise. Therefore, a multi-layer sound insulation design is achieved, effectively reducing noise. This noise-reducing door panel can be widely installed on various air compressors to achieve noise reduction.

[0019] The above is only one specific embodiment of the present utility model, but the design concept of the present utility model is not limited thereto. Any non-substantial modifications made to the present utility model using this concept shall be deemed as an infringement of the protection scope of the present utility model.

Claims

1. A noise-reducing door panel for an air compressor, characterized in that... include: Mainboard, glass wool, partition, sound-absorbing cotton, bracket, perforated metal plate, rubber sealing strip, upper cover plate and lower cover plate; The upper and lower cover plates are welded to the upper and lower sides of the main board along the height direction, the partition is welded to the inner side of the main board along the thickness direction, and the glass wool is filled between the partition and the main board; the side of the partition away from the main board is covered with sound-absorbing cotton, and the side of the sound-absorbing cotton away from the partition is provided with a perforated metal plate, and the perforated metal plate is fixed to the bracket welded to the partition; a rubber sealing strip is installed on the inner folded edge of the main board.

2. The noise reduction door panel for an air compressor according to claim 1, characterized in that: The support is arranged circumferentially along the partition.

3. An air compressor, characterized in that... The noise-reducing door panel as described in claim 1 or 2 is assembled.

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