CN105674534B - Air-conditioning active noise reducing device and noise-reduction method - Google Patents
Air-conditioning active noise reducing device and noise-reduction method Download PDFInfo
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- CN105674534B CN105674534B CN201610175077.1A CN201610175077A CN105674534B CN 105674534 B CN105674534 B CN 105674534B CN 201610175077 A CN201610175077 A CN 201610175077A CN 105674534 B CN105674534 B CN 105674534B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/247—Active noise-suppression
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Air Conditioning Control Device (AREA)
- Duct Arrangements (AREA)
Abstract
The invention discloses a kind of air-conditioning active noise reducing device and noise-reduction methods, including：At least two Noise Acquisition devices, for acquiring the voice signal at air-conditioner air outlet different location；Main control module analyzes the voice signal that Noise Acquisition device acquires, and filters out the signal that human ear can not perceive, and obtains noise signal, generates control signal and is sent to noise inversion signal output device；Noise inversion signal output device exports identical as noise signal frequencies, opposite in phase inversion signal to noise source position.The air-conditioning active noise reducing device of the present invention, on the one hand the position for sending out noise is not differentiated between, noise caused by all types, all possible causes can be reduced, the direction of still further aspect output noise inversion signal is adjusted according to the noise source position detected at any time, can solve to cause the noise that direction changes due to indoor unit wind direction and wind deflector aperture regulation.
Description
Technical field
The invention belongs to air-conditioning technical fields, specifically, being to be related to a kind of air-conditioning active noise reducing device and noise-reduction method.
Background technology
Noise is reduced on air-conditioning at present mainly using the reduction noise in terms of Duct design and material, but is produced in operation of air conditioner
Raw vibration and the noise for going out wind flow are unavoidable, and the structure of air-conditioning is strongly limited by designing low noise air duct method
Design, keeps product design single and has limitation, and need to increase great amount of cost and bad implementation using acoustic damping materials.
Another mode is to carry out active noise controlling to tumbler, and the scheme of active noise reduction is mainly for pressure at present
Contracting machine noise and vibration are inhibited, and sound source is fixed, but the sound source that air-conditioning generates noise is complicated, not just compressor, in addition,
Indoor unit wind direction and wind deflector aperture are adjustable in air-conditioning actual moving process, cause noise transmission direction can be by shadow
It rings, current active suppression sense is fixed, and noise suppression effect is bad.
Invention content
The present invention can not solve other to solve existing air-conditioning noise reduction technology just for specific noises such as such as compressors
Caused by the unfixed sound source in position the problem of noise, it is proposed that a kind of air-conditioning active noise reducing device and method, not independent needle
Noise reduction is carried out to the noise that a certain structure generates, the characteristics of operation in conjunction with indoor unit, for unfixed sound source, the noise of output
Inversion signal can be adjusted flexibly according to noise direction.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following scheme：
A kind of air-conditioning active noise reducing device, including：
At least two Noise Acquisition devices, for acquiring the voice signal at air-conditioner air outlet different location, and are sent to
Main control module；
Main control module analyzes the voice signal that Noise Acquisition device acquires, and filters out the signal that human ear can not perceive,
Noise signal is obtained, the intensive analysis of the voice signal acquired according to each Noise Acquisition device goes out noise source position, generates control
Signal processed is sent to noise inversion signal output device；
Noise inversion signal output device, receive main control module send control signal, towards noise source position output with
Noise signal frequencies are identical, opposite in phase inversion signal.
Further, the noise inversion signal output device includes sound-producing device, fixed part, vertical adjustment section, level
Adjustment portion, the first driving mechanism and the second driving mechanism, described fixed part one end are fixed on air-conditioning inner wall, other end
It is connect by first bearing with the vertical adjustment section, first driving mechanism drives the vertical adjustment section around first bearing
It rotating upwardly and downwardly, second driving mechanism drives the horizontal adjustment section to be connect by second bearing with the vertical adjustment section,
Second driving mechanism drives the horizontal adjustment section to horizontally rotate around the second bearing, first driving mechanism and the
Two driving mechanisms are connect with the main control module.
Further, the vertical adjustment section includes fixed plate and connecting shaft, and there are two peaces for the back side tool of the fixed plate
Block is filled, the free end of the fixed part and the outer ring of the first bearing fix, described in the free end of the fixed part stretches to
Between two mounting blocks, the inner ring of the connecting shaft and the first bearing is fixed, and at least one end is fixed with the mounting blocks,
The power output shaft of first driving mechanism is fixed with the mounting blocks, and the power output shaft of the first driving mechanism with it is described
Connecting shaft is located on same horizontal linear.
Further, the first connecting plate is fixed with before the fixed plate, the horizontal adjustment section includes the second connection
Plate, first connecting plate are connect with second connecting plate by second bearing, the power output of second driving mechanism
Axis is rotated with second connecting plate around the second bearing.
Further, the sound-producing device is fixed on second connecting plate, and when system reset, the generating means
Voice directions towards air-conditioner air outlet.
Further, first driving mechanism and/or the second driving mechanism are stepper motor.
Further, the Noise Acquisition device is distributed on the inside of air-conditioner air outlet.
The present invention proposes a kind of air-conditioning active denoising method, including front any one of them air-conditioning active noise reduction simultaneously
Device includes the following steps：
Noise Acquisition step periodically acquires the voice signal at air-conditioner air outlet different location；
Noise processing step analyzes the voice signal acquired, filters out the signal that human ear can not perceive, is made an uproar
Acoustical signal；
Noise source position positioning step goes out noise according to the intensive analysis of the voice signal at air-conditioner air outlet different location
Source position；
Noise inversion signal exports step, is exported towards noise source position identical as noise signal frequencies, opposite in phase
Inversion signal.
Further, in the noise inversion signal output step, at the air-conditioner air outlet different location acquired
Voice signal is compared, and compares the highest noise signal of intensity, according to the Noise Acquisition device for acquiring the noise signal
Location determination noise source position adjusts the angle that noise inversion signal output device sends inversion signal according to noise source position.
Compared with prior art, the advantages and positive effects of the present invention are：The air-conditioning active noise reducing device of the present invention, passes through
The voice signal at air-conditioner air outlet different location is acquired, and noise source position is judged with this, this kind of mode on the one hand not area
Distribute the position of noise, noise caused by all types, all possible causes can be reduced, still further aspect output noise is anti-
The direction of phase signals is adjusted according to the noise source position detected at any time, can be solved due to indoor unit wind direction and be led
Aerofoil aperture regulation causes the noise that direction changes.
After the detailed description of embodiment of the present invention is read in conjunction with the figure, the other features and advantages of the invention will become more
Add clear.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of example structure schematic diagram of air-conditioning active noise reducing device proposed by the invention；
Fig. 2 is the partial structural diagram of noise inversion signal output device in Fig. 1；
Fig. 3 is the arrangement schematic diagram of Noise Acquisition device in Fig. 1.
Specific implementation mode
The noise that air-conditioning active noise reduction mode is generated just for local devices such as such as compressors at present, practical operation of air conditioner mistake
It is many because being known as that there may be noises in journey, such as the vibration generated in operation of air conditioner and the noise etc. for going out wind flow, and
Such noise source position is not fixed, and can also be changed with indoor unit wind direction and wind deflector aperture etc., be increased air-conditioning
The uncertainty of noise improves air-conditioning noise reduction difficulty, is based on this, and the present invention proposes a kind of air-conditioning active noise reducing device and side
Method the characteristics of operation in conjunction with indoor unit, can be directed to unfixed sound source, the noise inversion signal of output can be according to noise side
To being adjusted flexibly, solves the above problem.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment one, the present embodiment proposes a kind of air-conditioning active noise reducing device, as shown in Figure 1, including：
At least two Noise Acquisition devices 11, for acquiring the voice signal at air-conditioner air outlet different location, and send
To main control module；Wherein, the device that such as sound pick-up is used to acquire sound may be used in Noise Acquisition device 11, due to air-conditioning without
By the vibration generated in the noise or operation for being compressor generation and the noise etc. for going out wind flow, mainly from air-conditioner air outlet position
It sets and sends out, the noise at air-conditioner air outlet therefore, in the present embodiment is targetedly acquired, moreover, because sound source is apart from outlet air
The distance of mouth is not equal, angle is different, also different by the noise intensity sent out at air-conditioner air outlet different location, therefore, it is necessary to
Two or more Noise Acquisition devices 11 are set, and is set at the different location of air outlet and is respectively used to acquire different positions
Set the noise at place.
Main control module（It is not shown in figure）, the voice signal that Noise Acquisition device 11 acquires is analyzed, human ear is filtered out
The signal that can not be perceived obtains noise signal such as the high-frequency signal that human ear can not perceive, and is adopted according to each Noise Acquisition device 11
The intensive analysis of the voice signal of collection goes out noise source position, generates control signal and is sent to noise inversion signal output device 12；
The noise source position analyzed is the noise main propagation direction judged, wherein control signal is according to these noise signals
And the noise main propagation direction judged fits the new signal that 180 degree is differed with noise signal phase, which propagates
Direction is identical as noise main propagation direction, and opposite in phase, therefore can be offseted with noise signal so that is transferred to human ear
Noise signal effectively reduced, the voice signal that main control module periodicity analysis is acquired and update adjustment exported make an uproar
Sound inversion signal and output signal direction so that the inversion signal of output is adjusted with the noise signal of variation in time,
While not influencing air-conditioning normal use, ensure to greatest extent except the effect and coverage area made an uproar.
Noise inversion signal output device 12 receives the control signal that main control module is sent, is exported towards noise source position
Identical as noise signal frequencies, opposite in phase inversion signal.The air-conditioning active noise reducing device of the present embodiment, by acquiring air-conditioning
Voice signal at air outlet different location, and noise source position is judged with this, on the one hand this kind of mode does not differentiate between to send out makes an uproar
The position of sound can reduce noise caused by all types, all possible causes, still further aspect output noise inversion signal
Direction is adjusted according to the noise source position detected at any time, can be solved due to indoor unit wind direction and wind deflector aperture
Adjust the noise for causing direction to change.
As a preferred embodiment, as shown in Fig. 2, the noise inversion signal output device 12 includes sound-producing device
121, fixed part 122, vertical adjustment section 123, horizontal adjustment section 124, the first driving mechanism（It is not shown in figure）And second drive
Motivation structure（It is not shown in figure）, 122 one end of the fixed part is fixed on air-conditioning inner wall 13, other end and the vertical adjusting
Portion 123 is connected by first bearing 14, and first driving mechanism drives the vertical adjustment section 123 around about 14 first bearing
Rotation, vertical adjustment section 123 can drive horizontal adjustment section 124 to be connected to sound-producing device 121 together about about 14 first bearing turn
It is dynamic, it is final to realize that the height for adjusting 121 sounding path of sound-producing device, second driving mechanism drive the horizontal adjustment section
124 are connect with the vertical adjustment section 123 by second bearing 15, and second driving mechanism drives the horizontal adjustment section
124 horizontally rotate around the second bearing 15, and first driving mechanism and the second driving mechanism are connect with the main control module.
As shown in Fig. 2, the vertical adjustment section 123 includes fixed plate 1231 and connecting shaft 1232, the fixed plate 1231
Back side tool there are two mounting blocks 1233, the free end of the fixed part 122 and the outer ring of the first bearing 14 are fixed, described
The free end of fixed part 122 stretches between described two mounting blocks 1233, the connecting shaft 1232 and the first bearing 14
Inner ring fix, and at least one end and the mounting blocks 1233 are fixed, the power output shaft of first driving mechanism with it is described
Mounting blocks 1233 are fixed, and the power output shaft of the first driving mechanism is located at same horizontal linear with the connecting shaft 1232
On.
The first connecting plate 16 is fixed with before the fixed plate 1231, the horizontal adjustment section 124 includes the second connection
Plate 1241, first connecting plate 16 are connect with second connecting plate 1241 by second bearing 15, second driving machine
The power output shaft of structure and second connecting plate 1241 are rotated around the second bearing, so drive sound-producing device 121 with
Second connecting plate 1241 moves, and realizes sound-producing device 121 and adjusts sounding angle in the horizontal direction.
The sound-producing device 121 is fixed on second connecting plate 1241, and when system reset, the generating means
121 voice directions are towards air-conditioner air outlet middle position.
In the present embodiment, the first driving mechanism and/or the second driving mechanism are realized using stepper motor.
As shown in figure 3, the Noise Acquisition device 11 is distributed on the inside of air-conditioner air outlet, 11 quantity of Noise Acquisition device
More, the judgement in direction is more accurate.
Embodiment two, the present embodiment propose a kind of air-conditioning active denoising method, including sky recorded in embodiment one
Active noise reducing device, this air-conditioning active denoising method is adjusted to include the following steps：
Noise Acquisition step periodically acquires the voice signal at air-conditioner air outlet different location；
Noise processing step analyzes the voice signal acquired, filters out the signal that human ear can not perceive, is made an uproar
Acoustical signal；
Noise source position positioning step goes out noise according to the intensive analysis of the voice signal at air-conditioner air outlet different location
Source position；
Noise inversion signal exports step, is exported towards noise source position identical as noise signal frequencies, opposite in phase
Inversion signal.
In noise inversion signal output step, by the voice signal at the air-conditioner air outlet different location acquired into
Row compares, and compares the highest noise signal of intensity, is made an uproar according to the location determination for the Noise Acquisition device for acquiring the noise signal
Sound source position adjusts the angle that noise inversion signal output device sends inversion signal according to noise source position.Noise Acquisition fills
Set 11 be fixed at air-conditioner air outlet after, angle of each Noise Acquisition device 11 relative to noise inversion signal output device 12
It is known that its angle is set in a program, main control module analyze which Noise Acquisition device 11 receive noise intensity it is high when,
The set angle of this Noise Acquisition device 11 is inquired, and carries out the angle adjustment of noise inversion signal output device 12.
Certainly, above description is not limitation of the present invention, and the present invention is also not limited to the example above, this technology neck
The variations, modifications, additions or substitutions that the those of ordinary skill in domain is made in the essential scope of the present invention, should also belong to this hair
Bright protection domain.
Claims (8)
1. a kind of air-conditioning active noise reducing device, which is characterized in that including：
At least two Noise Acquisition devices, for acquiring the voice signal at air-conditioner air outlet different location, and are sent to master control
Module；
Main control module analyzes the voice signal that Noise Acquisition device acquires, and filters out the signal that human ear can not perceive, obtains
The intensive analysis of noise signal, the voice signal acquired according to each Noise Acquisition device goes out noise source position, generates control letter
Number it is sent to noise inversion signal output device；
Noise inversion signal output device receives the control signal that main control module is sent, and believes to the output of noise source position with noise
Number frequency is identical, opposite in phase inversion signal；
The noise inversion signal output device includes sound-producing device, fixed part, vertical adjustment section, horizontal adjustment section, the first drive
Motivation structure and the second driving mechanism, described fixed part one end are fixed on air-conditioning inner wall, other end and the vertical adjusting
Portion is connected by first bearing, and first driving mechanism drives the vertical adjustment section to be rotated upwardly and downwardly around first bearing, described
Second driving mechanism drives the horizontal adjustment section to be connect by second bearing with the vertical adjustment section, second driving machine
Structure drives the horizontal adjustment section to horizontally rotate around the second bearing, first driving mechanism and the second driving mechanism and institute
State main control module connection.
2. air-conditioning active noise reducing device according to claim 1, which is characterized in that the vertical adjustment section includes fixed plate
And connecting shaft, for the back side tool of the fixed plate there are two mounting blocks, the free end of the fixed part is outer with the first bearing
Circle is fixed, and the free end of the fixed part stretches between described two mounting blocks, the connecting shaft and the first bearing
Inner ring is fixed, and at least one end is fixed with the mounting blocks, power output shaft and the mounting blocks of first driving mechanism
It is fixed, and the power output shaft of the first driving mechanism is located at the connecting shaft on same horizontal linear.
3. air-conditioning active noise reducing device according to claim 2, which is characterized in that be fixed with before the fixed plate
One connecting plate, the horizontal adjustment section include the second connecting plate, and first connecting plate passes through second with second connecting plate
Bearing connects, and the power output shaft of second driving mechanism is rotated with second connecting plate around the second bearing.
4. air-conditioning active noise reducing device according to claim 3, which is characterized in that the sound-producing device is fixed on described
On two connecting plates, and when system reset, the voice directions of the sound-producing device are towards air-conditioner air outlet centre position.
5. according to claim 1-4 any one of them air-conditioning active noise reducing devices, which is characterized in that first driving mechanism
And/or second driving mechanism be stepper motor.
6. according to claim 1-4 any one of them air-conditioning active noise reducing devices, which is characterized in that the Noise Acquisition device
It is distributed on the inside of air-conditioner air outlet.
7. the air-conditioning active noise reducing device described in any one of a kind of air-conditioning active denoising method, including claim 1-6, special
Sign is, includes the following steps：
Noise Acquisition step periodically acquires the voice signal at air-conditioner air outlet different location；
Noise processing step analyzes the voice signal acquired, filters out the signal that human ear can not perceive, and obtains noise letter
Number；
Noise source position positioning step goes out noise source position according to the intensive analysis of the voice signal at air-conditioner air outlet different location
It sets；
Noise inversion signal exports step, and identical as noise signal frequencies, opposite in phase reverse phase is exported towards noise source position
Signal.
8. air-conditioning active denoising method according to claim 7, which is characterized in that the noise inversion signal exports step
In, the voice signal at the air-conditioner air outlet different location acquired is compared, the highest noise signal of intensity is compared,
According to the location determination noise source position for the Noise Acquisition device for acquiring the noise signal, it is anti-that noise is adjusted according to noise source position
Phase signals output device sends the angle of inversion signal.
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| CN201610175077.1A CN105674534B (en) | 2016-03-25 | 2016-03-25 | Air-conditioning active noise reducing device and noise-reduction method |
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| CN201610175077.1A CN105674534B (en) | 2016-03-25 | 2016-03-25 | Air-conditioning active noise reducing device and noise-reduction method |
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| CN106766086A (en) * | 2016-08-20 | 2017-05-31 | 中声科技（北京）有限公司 | The air-conditioning that a kind of active abates the noise |
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| CN111981570B (en) * | 2020-08-11 | 2021-12-14 | 青岛海信日立空调系统有限公司 | Air pipe type air conditioner indoor unit |
| CN111951777B (en) * | 2020-09-11 | 2022-04-26 | 浙江农林大学 | Active magnetic suspension bearing noise elimination device and method |
| CN114061054B (en) * | 2021-11-03 | 2023-01-13 | 青岛海尔空调器有限总公司 | Control method and system for active noise reduction of air conditioner, electronic equipment and storage medium |
| CN114517954A (en) * | 2022-03-30 | 2022-05-20 | 海信（山东）空调有限公司 | Air conditioner and control method for actively reducing noise of air conditioner |
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