CN201285649Y - Noise reducer and server machine box having the noise reducer - Google Patents
Noise reducer and server machine box having the noise reducer Download PDFInfo
- Publication number
- CN201285649Y CN201285649Y CNU2008202135535U CN200820213553U CN201285649Y CN 201285649 Y CN201285649 Y CN 201285649Y CN U2008202135535 U CNU2008202135535 U CN U2008202135535U CN 200820213553 U CN200820213553 U CN 200820213553U CN 201285649 Y CN201285649 Y CN 201285649Y
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- China
- Prior art keywords
- noise
- frequency
- audio
- denoising device
- server
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- Expired - Fee Related
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Abstract
The utility model relates to a denoising device and a server chassis provided with the denoising device, wherein the denoising device is arranged in the server chassis and comprises an audio-frequency receiver used for receiving noise and a denoising output circuit which is connected with the audio-frequency receiver and used for analyzing the frequency of the receiving noise and outputting an audio frequency with reverse frequency. The traditional denoising device and the traditional server chassis adopt materials with noise-absorption capacity, thereby generally bringing negative effects, such as the influence on the heat radiation of the chassis. In the utility mode, the denoising device which is additionally arranged is provided with the audio-frequency receiver and the denoising output circuit, thereby achieving the aim of reducing the noise by receiving and analyzing the frequency of the ambient noise and generating the audio frequency with the reverse frequency which is weakened or counteracted with the noise to each other. By adopting the denoising device, the server chassis can achieve the effect of more than 10 DB compared with the traditional denoising server chassis, thereby the server can be directly positioned in an office without influencing the work of staff.
Description
Technical field
The utility model relates to the noise reduction product, more particularly, relates to a kind of denoising device and has the machine box for server of denoising device.
Background technology
Traditional noise reduction mode all is to have the article that absorb the noise ability with some to carry out noise reduction, and the machine box for server with decrease of noise functions just reaches the purpose that reduces noise at the article that cabinet inside filled and process, sponge etc. have certain absorption noise ability.Yet, adopt such method effect limited, and too much filling material can influence the heat radiation of server.
The utility model content
The technical problems to be solved in the utility model is, adopt at the above-mentioned denoising device of prior art and noise reduction machine box for server to have the article that absorb the noise ability and the defective of bringing negative effect, a kind of denoising device is provided and has the machine box for server of denoising device.
The technical scheme that its technical matters that solves the utility model adopts is: construct a kind of denoising device, it comprises and is used to receive the audio receiver of noise and is connected the frequency that is used to analyze the noise that receives with described audio receiver and anti-noise output circuit that output has the audio frequency of reverse-frequency.
In denoising device described in the utility model, described anti-noise output circuit comprises the frequency that is used to analyze the noise that receives and produces the noise reduction chip of reverse-frequency and be connected with described noise reduction chip and is used to export the audio frequency apparatus with reverse-frequency.
The technical scheme that its technical matters that solves the utility model adopts is: construct a kind of machine box for server that has denoising device, in the described server audio amplifier denoising device is installed, this denoising device comprises and is used to receive the audio receiver of noise and is connected the frequency that is used to analyze the noise that receives with described audio receiver and anti-noise output circuit that output has the audio frequency of reverse-frequency.
In machine box for server described in the utility model, described anti-noise output circuit comprises the frequency that is used to analyze the noise that receives and produces the noise reduction chip of reverse-frequency and be connected with described noise reduction chip and is used to export the audio frequency apparatus with reverse-frequency.
Implement denoising device of the present utility model and have the machine box for server of denoising device, has following beneficial effect: increased denoising device, this device has audio receiver and anti-noise output circuit, by frequency that receives and analyze ambient noise and the audio frequency that produces the frequency opposite with it, weaken mutually with noise or offset, thereby reach the purpose that reduces noise, can nearly arrive the 10DB effect by this device than traditional noise reduction machine box for server, make server directly be placed on office and do not influence office worker office.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the system chart of denoising device of the present utility model;
Fig. 2 is the schematic diagram of the anti-noise output circuit of denoising device of the present utility model;
Fig. 3 is the structural representation that has the machine box for server of denoising device of the present utility model.
Embodiment
In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be understood that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As shown in Figure 1, be the system chart of denoising device of the present utility model.According to the utility model, shown denoising device comprises audio receiver 1 and the anti-noise output circuit 2 that is used to receive noise.Wherein, the anti-noise output circuit is connected with audio receiver 1, is used to analyze the frequency of the noise that receives, and exports the audio frequency with reverse-frequency then, and the audio frequency of output and noise weaken mutually or offset, thereby reaches the purpose that reduces noise.
As shown in Figure 2, anti-noise output circuit 2 of the present utility model comprises the frequency that is used to analyze the noise that receives and the noise reduction chip that produces reverse-frequency (the noise reduction chip shown in the figure is LM1894) and is connected with described noise reduction chip and is used to export the audio frequency apparatus 3 with reverse-frequency.The noise reduction chip receives the noise come from the outside, then its frequency is carried out analyzing and processing, produces a signal opposite with its frequency and inputs to audio frequency apparatus 3, and the audio frequency that audio frequency apparatus 3 is exported has opposite frequency with noise, so weakens mutually or offset.Noise inputs to noise reduction chip LM1894 from input end INPUT, noise reduction chip LM1894 carries out analyzing and processing to it, the signal that has reverse-frequency in output terminal OUTPUT output then, the audio frequency apparatus 3 that this signal controlling is connected with the noise reduction chip send audio frequency with reverse-frequency and noise to be weakened mutually or offsets.
As shown in Figure 3, there is shown the structural representation of machine box for server of the present utility model.As can be seen from the figure, the denoising device with above-mentioned feature is installed in the machine box for server.With reference to Fig. 1 and 2, denoising device in the machine box for server comprises and is used to receive the audio receiver 1 of noise and the anti-noise output circuit 2 that is connected with described audio receiver 1 that anti-noise output circuit 2 is used to analyze the frequency of the noise that receives and also exports the audio frequency with reverse-frequency.Anti-noise output circuit 2 comprises the frequency that is used to analyze the noise that receives and produces the noise reduction chip of reverse-frequency and be connected with described noise reduction chip and is used to export the audio frequency apparatus 3 with reverse-frequency.The noise reduction chip receives the noise come from the outside, then its frequency is carried out analyzing and processing, produces a signal opposite with its frequency and inputs to audio frequency apparatus 3, and the audio frequency that audio frequency apparatus 3 is exported has opposite frequency with noise, so weakens mutually or offset.
The utility model increases denoising device in machine box for server, this device has audio receiver and anti-noise output circuit, by frequency that receives and analyze ambient noise and the audio frequency that produces the frequency opposite, weaken mutually with noise or offset, thereby reach the purpose of reduction noise with it.Can nearly arrive the 10DB effect by this denoising device than traditional noise reduction machine box for server, make server directly be placed on office and do not influence office worker office.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; any modification of being done within every spirit of the present utility model and the principle, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (4)
1, a kind of denoising device is characterized in that, comprises the audio receiver (1) that is used to receive noise and is connected the frequency that is used to analyze the noise that receives with described audio receiver (1) and anti-noise output circuit (2) that output has the audio frequency of reverse-frequency.
2, denoising device according to claim 1, it is characterized in that described anti-noise output circuit (2) comprises the frequency that is used to analyze the noise that receives and produces the noise reduction chip of reverse-frequency and be connected with described noise reduction chip and is used to export the audio frequency apparatus with reverse-frequency.
3, a kind of machine box for server that has denoising device, it is characterized in that, in the described machine box for server denoising device is installed, this denoising device comprises the audio receiver (1) that is used to receive noise and is connected the frequency that is used to analyze the noise that receives with described audio receiver (1) and anti-noise output circuit (2) that output has the audio frequency of reverse-frequency.
4, machine box for server according to claim 3, it is characterized in that described anti-noise output circuit (2) comprises the frequency that is used to analyze the noise that receives and produces the noise reduction chip of reverse-frequency and be connected with described noise reduction chip and is used to export the audio frequency apparatus with reverse-frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202135535U CN201285649Y (en) | 2008-11-14 | 2008-11-14 | Noise reducer and server machine box having the noise reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202135535U CN201285649Y (en) | 2008-11-14 | 2008-11-14 | Noise reducer and server machine box having the noise reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201285649Y true CN201285649Y (en) | 2009-08-05 |
Family
ID=40950631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202135535U Expired - Fee Related CN201285649Y (en) | 2008-11-14 | 2008-11-14 | Noise reducer and server machine box having the noise reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201285649Y (en) |
-
2008
- 2008-11-14 CN CNU2008202135535U patent/CN201285649Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090805 Termination date: 20171114 |