CN215643681U - Noise reduction device for exciter - Google Patents
Noise reduction device for exciter Download PDFInfo
- Publication number
- CN215643681U CN215643681U CN202122160313.1U CN202122160313U CN215643681U CN 215643681 U CN215643681 U CN 215643681U CN 202122160313 U CN202122160313 U CN 202122160313U CN 215643681 U CN215643681 U CN 215643681U
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- China
- Prior art keywords
- exciter
- noise reduction
- sound
- reduction device
- closed cavity
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- 238000010521 absorption reaction Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000009413 insulation Methods 0.000 claims abstract description 8
- 229920000742 Cotton Polymers 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000007767 bonding agent Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The utility model discloses a noise reduction device for an exciter, which comprises a closed cavity and a sound absorption body, wherein the exciter is placed in the closed cavity, 100-2500 HZ noise generated in the working process of the exciter is subjected to full-band sound insulation treatment through the closed cavity, the sound absorption body is arranged on the inner surface of the closed cavity, and 890HZ peak noise generated in the working process of the exciter is subjected to sound absorption treatment through the sound absorption body. The noise reduction device firstly adopts the closed cavity to play a role in sound insulation, and then the sound absorption body plays a role in absorbing source noise on the inner surface of the cavity, so that the expected noise reduction effect is finally achieved.
Description
Technical Field
The utility model relates to a noise reduction device for an exciter, and belongs to the technical field of noise reduction.
Background
In order to solve the problem that the vibration exciter generates larger noise when working and no existing solution adaptive to the vibration exciter exists, a noise reduction device is urgently needed to be designed to solve the problem.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims to provide a noise reduction device for an exciter.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a device of making an uproar falls for exciter, includes the closed cavity and inhales the sound body, and the vibration exciter is placed in the closed cavity, carries out full frequency channel sound insulation through the 100 ~ 2500HZ noise that the closed cavity appears in to the vibration exciter working process and handles, inhales the sound body and sets up at the closed cavity internal surface, carries out sound absorption through inhaling the 890HZ peak noise that the sound body appears in to the vibration exciter working process.
Furthermore, the closed cavity is formed by splicing metal plates.
Further, the metal plate is a steel plate.
Furthermore, the sound absorption body adopts wedge type sound absorption cotton.
Furthermore, the wedge-type sound absorption cotton is attached to the inner surface of the closed cavity through an adhesive.
Has the advantages that: the noise reduction device firstly adopts the closed cavity to play a role in sound insulation, and then the sound absorption body plays a role in absorbing source noise on the inner surface of the cavity, so that the expected noise reduction effect is finally achieved. The noise reduction device is used for carrying out sound absorption and sound insulation treatment on medium-high frequency noise generated during the working of the vibration exciter, so that the total sound pressure level of a measuring point of the noise reduction device is reduced by more than 15dB (A).
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a front view of the enclosed cavity.
Fig. 3 is a top view of an enclosed cavity.
In the figure: 1-sealing the cavity; 2-sound absorbing body; and 3, vibration exciter.
The specific implementation mode is as follows:
the utility model is further explained below with reference to the drawings.
As shown in fig. 1 to 3, the noise reduction device for the exciter according to the present invention is designed according to the size of the exciter 3 and the use mode thereof, and includes a closed cavity 1 and a sound-absorbing body 2. When the vibration exciter 3 works, the closed cavity 1 is adopted to play a sound insulation role, and the sound absorbing body 2 plays a role in absorbing source noise in the closed cavity 1, so that the problem of overlarge noise in the operation process of the vibration exciter 3 is solved.
The closed cavity 1 is formed by splicing metal plates, and the metal plates are steel plates in the embodiment. The upper left chamfer of the closed cavity 1 shown in fig. 1 is used for preventing interference with other equipment, and the outer dimension of the closed cavity 1 can be adjusted according to actual needs, and is not limited to the shape shown in the figure. The vibration exciter 3 is placed in the closed cavity 1, and full-frequency-band sound insulation treatment is carried out on 100-2500 HZ noise generated in the working process of the vibration exciter through the closed cavity. Inhale the sound body 2 and set up at the internal surface of enclosed cavity 1, carry out sound absorption treatment through inhaling the sound body to the 890HZ peak noise that appears in the vibration exciter working process. In this embodiment, the sound absorbing body 2 is made of wedge-shaped sound absorbing cotton, and the wedge-shaped sound absorbing cotton is attached to the inner surface of the closed cavity 1 by an adhesive.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. A noise reduction device for an exciter is characterized in that: including the enclosed cavity body with inhale the sound body, the vibration exciter is placed in the enclosed cavity body, carries out full frequency channel sound insulation through the enclosed cavity body to the 100 ~ 2500HZ noise that appears in the vibration exciter working process and handles, inhales the sound body and sets up at the enclosed cavity internal surface, carries out sound absorption treatment through inhaling 890HZ peak noise that the sound body appears in to the vibration exciter working process.
2. The noise reduction device for an exciter according to claim 1, wherein: the closed cavity is formed by splicing metal plates.
3. The noise reduction device for an exciter according to claim 2, wherein: the metal plate is a steel plate.
4. The noise reduction device for an exciter according to claim 1, wherein: the sound absorption body adopts wedge type sound absorption cotton.
5. The noise reduction device for an exciter according to claim 4, wherein: the wedge-type sound-absorbing cotton is attached to the inner surface of the closed cavity through a bonding agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122160313.1U CN215643681U (en) | 2021-09-08 | 2021-09-08 | Noise reduction device for exciter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122160313.1U CN215643681U (en) | 2021-09-08 | 2021-09-08 | Noise reduction device for exciter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215643681U true CN215643681U (en) | 2022-01-25 |
Family
ID=79911513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122160313.1U Active CN215643681U (en) | 2021-09-08 | 2021-09-08 | Noise reduction device for exciter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215643681U (en) |
-
2021
- 2021-09-08 CN CN202122160313.1U patent/CN215643681U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Corning road Nanjing City, Jiangsu province 211100 Jiangning Science Park No. 389 Patentee after: Xiezhong International Thermal Management System (Jiangsu) Co.,Ltd. Country or region after: China Address before: No.389, Kening Road, Science Park, Jiangning District, Nanjing City, Jiangsu Province, 211100 Patentee before: NANJING XIEZHONG AUTO-AIRCONDITIONER (COMPANY) Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |