CN205595066U - Active noise reduction composite set of transformer substation - Google Patents
Active noise reduction composite set of transformer substation Download PDFInfo
- Publication number
- CN205595066U CN205595066U CN201620260120.XU CN201620260120U CN205595066U CN 205595066 U CN205595066 U CN 205595066U CN 201620260120 U CN201620260120 U CN 201620260120U CN 205595066 U CN205595066 U CN 205595066U
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- China
- Prior art keywords
- main body
- apparatus main
- noise reduction
- transformer station
- inner chamber
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Abstract
The utility model discloses an active noise reduction composite set of transformer substation, including the device main part, the connecting plate is all installed to the lower extreme both sides of device main part, and one side of connecting plate is equipped with fixing device, the inner wall of device main part is equipped with the acoustic baffle, connecting device is installed to the upper end of device main part, and one side of connecting device installs sub - spliced pole, the inner chamber upper end of device main part is installed and is fallen the device of making an uproar, fall the inner chamber of the device of making an uproar and install amplification circuit board, the feedback circuit board is installed to amplification circuit board's lower extreme, the connecting device of transformer substation is installed to the lower extreme of feedback circuit board, and the connecting device's of transformer substation lower extreme extends to the outside that falls the device of making an uproar, drive arrangement is all installed to the inner chamber both sides of device main part. The utility model discloses simple to use, it is convenient to install for the user has a fine the noise reduction effect in the use, and the person of facilitating the use uses.
Description
Technical field
This utility model relates to noise reduction technology field, particularly relates to a kind of transformer station active noise reduction combination unit.
Background technology
Intrinsically, active noise reduction be equivalent to introduce in original system a part of degenerative circuit (open loop or
Person's closed loop has), thus the amplitude of original noise signal, power and decibel can be significantly weakened when reality exports, reach real
The purpose of border noise reduction.Principle core concept is exactly the self-stabilization principle of feedback and system.The instrument system of active noise reduction is mainly wrapped
Include microphone, amplifier, phase modulation apparatus, power amplifier and speaker.It is a kind of can to reduce microphone adjacent area acoustic pressure
Electroacoustic degeneration factor.Received acoustic pressure is changed into corresponding voltage by microphone, by amplifier, voltage amplification is arrived
Input voltage required by anti-phase device, inverted device, by the phase change 180 ° of this voltage, gives power amplifier, merit
Rate promotes speaker to make it produce and the acoustic pressure of opposite in phase equal in magnitude with original acoustic pressure after amplifying, the two acoustic pressure is each other
Repeal by implication, reduce the purpose of noise.In order to be effectively realized anti-sound effect, under the various equipment of use should meet respectively
State requirement.1. microphone: in using frequency range, the phase change of effect acoustic pressure and output voltage should be the least；Have constant
Proportionate relationship, i.e. has straight Frequency Response；Height is wanted in sensitivity.2. speaker: the output transformator of amplifier and speaker coupling
During conjunction, voltage often produces the change of sizable phase place.For avoiding this phenomenon, the speaker used by anti-audio technology is preferably with resistance
Anti-higher and with the connection of transformerless direct coupling type.It is simple radiation for ensureing the speaker used by anti-sound system
Device, should be arranged on inwall has what high efficiency sound absorption processed to raise one's voice in casket.For make speaker regulation frequency range in substantially
Keep straight Frequency Response, the porous acoustic resistance of one layer of silk piece goods at the rear portion of its magnetic field structure, can be added.3. amplifying circuit:
Requirement frequency response is straight, and phase place change at different levels is little；Each inter-stage occurs without regeneration and positive feedback.In order to avoid high frequency is maked a whistling sound
Cry, the available way making output signal increase with frequency and to decline.Active noise reduction system can reach under ideal conditions
Noise reduction,.But the composition of the noise frequency in environment is the most complicated and intensity rises and falls in time, often in some frequency range and position
On noise offseted, and increased in other frequency range and position, it is difficult to reach preferable effect.
But existing active noise reduction is in transformer station's good practicality of technical field neither one so that transformer station is in work
Make the good noise reduction process of process neither one so that user is using the working environment that process neither one is comfortable, simultaneously
At the denoising device of the process of use, neither one well detachable effect, bring a lot of inconvenience to user.
Summary of the invention
The purpose of this utility model is to solve shortcoming present in prior art, and a kind of transformer station proposed is active
Noise reduction combination unit.
To achieve these goals, this utility model adopts the technical scheme that transformer station's active noise reduction combination unit,
Including apparatus main body, the both sides, lower end of described apparatus main body are mounted on connecting plate, and the side of connecting plate is provided with fixing device,
The inwall of described apparatus main body is provided with acoustic board, and the both sides of acoustic board are mounted on loudspeaker arrangement, described apparatus main body upper
End is provided with attachment means, and the side of attachment means is provided with sub-connection post, and the inner chamber upper end of described apparatus main body is provided with
Denoising device, the inner chamber of described denoising device is provided with magnification circuit plate, and the lower end of described magnification circuit plate is provided with feedback electricity
Road plate, the lower end of described feedback circuit plate is provided with transformer station's attachment means, and the lower end of transformer station's attachment means extends to fall
Making an uproar the outside of device, the inner chamber both sides of described apparatus main body are mounted on driving means, and driving means is away from apparatus main body
Side is provided with firm plate.
Preferably, the lower end of described apparatus main body is provided with transformer station's container, and the lower end of apparatus main body is provided with anti-slip veins.
Preferably, the inner chamber of described denoising device is provided with microphone, and microphone jade loudspeaker arrangement is electrically connected with.
Preferably, described acoustic board is positioned at the inwall of apparatus main body, and the upper end of apparatus main body is provided with connection hole, described company
The inwall connecing hole is provided with sealant.
In this utility model, by the way of using external-added noise reduction, it is achieved that the working environment of transformer station is had
The noise reduction process of effect, brings the most easy-to-use and more comfortable working environment to user, and this device is using simultaneously
Process is user-friendly for installation and removal, has saved the time and efforts of user, and this device is easy to operate simultaneously, convenient
User uses so that user has a good convenience in use process.
Accompanying drawing explanation
Fig. 1 is the structural representation of the transformer station's active noise reduction combination unit that the utility model proposes.
In figure: 1 connects post, 2 attachment means, 3 magnification circuit plates, 4 acoustic boards, 5 denoising devices, 6 loudspeaker arrangements, 7 devices
Main body, 8 feedback circuit plates, 9 transformer station's attachment means, 10 consolidate plate, 11 driving means, 12 fixing devices, 13 connecting plates.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.
With reference to Fig. 1, transformer station's active noise reduction combination unit, including apparatus main body 7, the both sides, lower end of apparatus main body 7 are all pacified
Equipped with connecting plate 13, and the side of connecting plate 13 is provided with fixing device 12, and the inwall of apparatus main body 7 is provided with acoustic board 4, and sound absorption
The both sides of plate 4 are mounted on loudspeaker arrangement 6, and the upper end of apparatus main body 7 is provided with attachment means 2, and the side peace of attachment means 2
Equipped with sub-connection post 1, the inner chamber upper end of apparatus main body 7 is provided with denoising device 5, and the inner chamber of denoising device 5 is provided with amplification electricity
Road plate 3, the lower end of magnification circuit plate 3 is provided with feedback circuit plate 8, and the lower end of feedback circuit plate 8 is provided with transformer station and connects dress
Putting 9, and the lower end of transformer station's attachment means 9 extends to the outside of denoising device 5, the inner chamber both sides of apparatus main body 7 are mounted on
Driving means 11, and driving means 11 is provided with firm plate 10 away from the side of apparatus main body 7, the lower end of apparatus main body 7 is provided with change
Power station container, and the lower end of apparatus main body 7 is provided with anti-slip veins, the inner chamber of denoising device 5 is provided with microphone, and microphone with
Loudspeaker arrangement is electrically connected with, and acoustic board 4 is positioned at the inwall of apparatus main body 7, and the upper end of apparatus main body 7 is provided with connection hole, connects
The inwall of hole is provided with sealant.This utility model uses simple, and it is convenient to install so that user has one very in use process
Good noise reduction, is user-friendly for using.
This utility model is by the way of using external-added noise reduction, it is achieved that carry out the working environment of transformer station effectively
Noise reduction process, brings the most easy-to-use and more comfortable working environment to user, and this device is in the process of use simultaneously
Being user-friendly for installation and removal, saved the time and efforts of user, this device is easy to operate simultaneously, convenient use
Person uses so that user has a good convenience in use process.
The above, only this utility model preferably detailed description of the invention, but protection domain of the present utility model is not
Being confined to this, any those familiar with the art is in the technical scope that this utility model discloses, according to this practicality
Novel technical scheme and utility model thereof conceive equivalent or change in addition, all should contain at protection model of the present utility model
Within enclosing.
Claims (4)
1. transformer station's active noise reduction combination unit, including apparatus main body (7), it is characterised in that the lower end of described apparatus main body (7)
Both sides are mounted on connecting plate (13), and the side of connecting plate (13) is provided with fixing device (12), described apparatus main body (7) interior
Wall is provided with acoustic board (4), and the both sides of acoustic board (4) are mounted on loudspeaker arrangement (6), the upper end peace of described apparatus main body (7)
Equipped with attachment means (2), and the side of attachment means (2) is provided with sub-connection post (1), on the inner chamber of described apparatus main body (7)
End is provided with denoising device (5), and the inner chamber of described denoising device (5) is provided with magnification circuit plate (3), described magnification circuit plate
(3) lower end is provided with feedback circuit plate (8), and the lower end of described feedback circuit plate (8) is provided with transformer station's attachment means (9),
And the lower end of transformer station's attachment means (9) extends to the outside of denoising device (5), the inner chamber both sides of described apparatus main body (7) are equal
Driving means (11) is installed, and driving means (11) is provided with firm plate (10) away from the side of apparatus main body (7).
Transformer station the most according to claim 1 active noise reduction combination unit, it is characterised in that described apparatus main body (7)
Lower end is provided with transformer station's container, and the lower end of apparatus main body (7) is provided with anti-slip veins.
Transformer station the most according to claim 1 active noise reduction combination unit, it is characterised in that described denoising device (5)
Inner chamber is provided with microphone, and microphone is electrically connected with loudspeaker arrangement.
Transformer station the most according to claim 1 active noise reduction combination unit, it is characterised in that described acoustic board (4) is positioned at
The inwall of apparatus main body (7), the upper end of apparatus main body (7) is provided with connection hole, and the inwall of described connection hole is provided with sealant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620260120.XU CN205595066U (en) | 2016-03-31 | 2016-03-31 | Active noise reduction composite set of transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620260120.XU CN205595066U (en) | 2016-03-31 | 2016-03-31 | Active noise reduction composite set of transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205595066U true CN205595066U (en) | 2016-09-21 |
Family
ID=56922828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620260120.XU Expired - Fee Related CN205595066U (en) | 2016-03-31 | 2016-03-31 | Active noise reduction composite set of transformer substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205595066U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107724550A (en) * | 2017-11-30 | 2018-02-23 | 广东电网有限责任公司电力科学研究院 | A kind of transformer station's noise cancellation apparatus |
-
2016
- 2016-03-31 CN CN201620260120.XU patent/CN205595066U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107724550A (en) * | 2017-11-30 | 2018-02-23 | 广东电网有限责任公司电力科学研究院 | A kind of transformer station's noise cancellation apparatus |
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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 |
Granted publication date: 20160921 Termination date: 20170331 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |