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CN-224232352-U - Noise reduction module and noise reduction device

CN224232352UCN 224232352 UCN224232352 UCN 224232352UCN-224232352-U

Abstract

The application discloses a noise reduction module and a noise reduction device, which comprise a box body, wherein a plurality of mutually independent resonant cavities are arranged in the box body, each resonant cavity has different resonant frequencies, each resonant cavity is provided with a communication hole and is communicated with the external environment only through the communication hole, the noise reduction device comprises a plurality of noise reduction modules, the communication holes of the noise reduction modules are identical in structure, the noise reduction modules are arranged towards the same surface, the noise reduction modules are mutually stacked, when in use, the communication holes of the noise reduction device are opposite to a noise source, compared with the prior art, the size and the structure of the resonant box are adjusted to enable the resonant cavity to have the same frequency as the noise source, noise reduction is achieved in a resonant mode, the structure is simple, the cost is low, simultaneous resonance noise reduction treatment of a plurality of different resonant frequencies can be achieved through the mode of the plurality of independent resonant cavities, and the noise reduction performance of the noise reduction modules is effectively improved.

Inventors

  • HE ANJUN
  • JIANG LIANG
  • LIN YOUFU
  • WANG KE

Assignees

  • 四川恒远信友环境科技有限公司

Dates

Publication Date
20260512
Application Date
20250314

Claims (6)

  1. 1. A noise reduction module is characterized by comprising, The device comprises a box body (1), wherein a plurality of mutually independent resonant cavities (2) are arranged in the box body (1), and each resonant cavity (2) has different resonant frequencies, and each resonant cavity (2) is provided with a communication hole (3) and is communicated with the external environment only through the communication hole (3); At least one partition plate (4) is arranged in the box body (1), each partition plate (4) is arranged along the length direction of the box body (1), a lower plate (5) is arranged at one end of the box body (1) along the length direction of the box body (1), an upper plate (6) is arranged at the other end of the box body, the lower plate (5) and the upper plate (6) seal the two ends of the box body (1) respectively, and the communication holes (3) are formed in the upper plate (6).
  2. 2. A noise reduction module according to claim 1, characterized in that the housing (1) is divided by a partition (4) into a first resonance chamber with a length of 40-80mm and a height of 80-120mm and a second resonance chamber with a length of 40-80mm and a height of 80-120mm.
  3. 3. A noise reduction module according to claim 1, characterized in that the aperture of the communication hole (3) is 4-6mm.
  4. 4. A noise reduction module according to claim 1, characterized in that the upper plate (6) is arranged in the box (1) along the length direction of the box (1), and the distance between the top surface of the upper plate (6) and the end surface of the box (1) is 10-20mm.
  5. 5. A noise reduction device, characterized by comprising a plurality of noise reduction modules according to any one of claims 1-4, wherein each noise reduction module has the same structure, communication holes (3) of each noise reduction module are all arranged towards the same surface, and the noise reduction modules are mutually stacked.
  6. 6. A noise reduction device according to claim 5, characterized in that the noise reduction device comprises a frame body (7), each of the noise reduction modules is stacked and filled in the frame body (7), and communication holes (3) of each of the noise reduction modules are provided toward the same side in the width direction of the frame body (7).

Description

Noise reduction module and noise reduction device Technical Field The application relates to the technical field of noise control equipment, in particular to a noise reduction module and a noise reduction device. Background The main noise source of the transformer substation is a main transformer and a high-voltage shunt reactor, noise generated by the equipment in the prior art is usually isolated by a sound insulation plate, the sound insulation plate is high in cost, and meanwhile noise reduction treatment effect on the noise is poor. Disclosure of utility model The application mainly aims to provide a noise reduction module and a noise reduction device, and aims to overcome the defect of poor noise reduction effect in the prior art. The application realizes the aim through the following technical scheme: A noise reduction module comprises a noise reduction module, a noise reduction module and a noise reduction module, The box body is internally provided with a plurality of mutually independent resonant cavities, each resonant cavity has different resonant frequencies, and each resonant cavity is provided with a communication hole and is communicated with the external environment only through the communication hole. Optionally, at least one partition board is disposed in the box body, and each partition board is disposed along the length direction of the box body. Optionally, the box body is divided into a first resonant cavity and a second resonant cavity by a partition board, the length of the first resonant cavity is 40-80mm, the height of the first resonant cavity is 80-120mm, and the length of the second resonant cavity is 40-80mm, and the height of the second resonant cavity is 80-120mm. Optionally, along the length direction of the box body, one end of the box body is provided with a lower plate, the other end of the box body is provided with an upper plate, the lower plate and the upper plate respectively seal the two ends of the box body, and the communication hole is arranged on the upper plate. Alternatively, the pore diameter of the communicating hole is 4-6mm. Optionally, along the length direction of the box, the upper plate is arranged in the box, and the distance between the top surface of the upper plate and the end surface of the box is 10-20mm. Correspondingly, the application also discloses a noise reduction device which comprises a plurality of noise reduction modules, wherein the noise reduction modules are identical in structure, communication holes of the noise reduction modules are arranged towards the same surface, and the noise reduction modules are mutually stacked. Optionally, the noise reduction device includes a frame body, each noise reduction module is stacked and filled in the frame body, and along a width direction of the frame body, communication holes of each noise reduction module are arranged towards the same side. Compared with the prior art, the application has the following beneficial effects: The application further discloses a noise reduction device which comprises a plurality of noise reduction modules, wherein the noise reduction modules are identical in structure, the communication holes of the noise reduction modules are arranged towards the same surface, the noise reduction modules are mutually stacked, and the communication holes of the noise reduction device are opposite to a noise source in use; Compared with the prior art, the noise reduction device has the advantages that the size and the structure of the resonance box are adjusted to enable the resonance box to have the same frequency as the noise source, noise reduction is achieved in a resonance mode, the structure is simple, the cost is low, simultaneous resonance noise reduction processing of a plurality of different resonance frequencies can be achieved in a mode of arranging a plurality of independent resonance cavities, and noise reduction performance of the noise reduction module is effectively improved. Drawings Fig. 1 is a schematic structural diagram of a noise reduction module according to the present application; FIG. 2 is a cross-sectional view of a noise reduction module provided by the present application; FIG. 3 is a schematic diagram of a noise reduction device according to the present application; The reference sign is 1-box, 2-resonant cavity, 3-communication hole, 4-baffle, 5-lower plate, 6-upper plate, 7-frame. The achievement of the objects, functional features and advantages of the present application will be further described with reference to the accompanying drawings, in conjunction with the embodiments. Detailed Description The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodime