CN111520901A - Active noise reduction air conditioner structure - Google Patents

Active noise reduction air conditioner structure Download PDF

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Publication number
CN111520901A
CN111520901A CN202010511606.7A CN202010511606A CN111520901A CN 111520901 A CN111520901 A CN 111520901A CN 202010511606 A CN202010511606 A CN 202010511606A CN 111520901 A CN111520901 A CN 111520901A
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CN
China
Prior art keywords
air
air conditioner
air outlet
main body
sound wave
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010511606.7A
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Chinese (zh)
Inventor
崔强
董宏达
霍习策
穆林涛
崔莹莹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xi'an Cloud Vein Intelligent Technology Co ltd
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Xi'an Cloud Vein Intelligent Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Xi'an Cloud Vein Intelligent Technology Co ltd filed Critical Xi'an Cloud Vein Intelligent Technology Co ltd
Priority to CN202010511606.7A priority Critical patent/CN111520901A/en
Publication of CN111520901A publication Critical patent/CN111520901A/en
Pending legal-status Critical Current

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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/56—Remote control
    • F24F11/58—Remote control using Internet communication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • 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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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

The embodiment of the invention provides an active noise reduction air conditioner structure, which comprises: the air conditioner comprises an air conditioner main body, a controller, a sound collection device and a loudspeaker; the sound collecting device is used for collecting air outlet sound waves at the air outlet and sending the air outlet sound waves to the controller; the loudspeaker is arranged in the air outlet area, the loudspeaker is arranged on the air conditioner main body, the included angle between the sound production direction of the loudspeaker and the air outlet direction of the air conditioner main body is smaller than 90 degrees, and the included angle between the air outlet direction of the loudspeaker and the surface of the front panel of the air conditioner main body ranges from 10 degrees to 50 degrees; the controller is used for confirming the target sound wave according to the air-out sound wave to control speaker according to the sound production of target sound wave, wherein, the target sound wave is: and the intensity of the sound wave obtained after the sound wave is superposed with the air outlet sound wave is smaller than that of the sound wave with the second preset intensity. The scheme provided by the embodiment of the invention can reduce the noise at the air outlet of the air-conditioning structure, so that the noise reduction effect of the air-conditioning structure is better.

Description

Active noise reduction air conditioner structure
Technical Field
The invention relates to the technical field of air conditioners, in particular to an active noise reduction air conditioner structure.
Background
The noise is a serious pollution source, has great influence on daily work and life of people, and along with the increasing improvement of living standard, the tolerance of people to the noise is smaller and smaller, and the noise reduction in daily life and work is not slow at all. When the air conditioner works, a lot of noises are generated, the most direct influence on the noises at the air outlet of the air conditioner is that of a user, and particularly when the user has a rest, the noise problem is very prominent. Therefore, an air conditioner structure with better noise reduction effect needs to be designed.
Disclosure of Invention
The embodiment of the invention provides an active noise reduction air conditioner structure, which aims to effectively reduce the noise at an air outlet of the air conditioner structure, so that the noise reduction effect of the air conditioner structure is better. The specific technical scheme is as follows:
the embodiment of the invention provides an active noise reduction air conditioner structure, which comprises: the air conditioner comprises an air conditioner main body, a controller, a sound collection device and a loudspeaker;
the loudspeaker is in communication connection with the controller, and the sound collection device is in communication connection with the controller;
the sound collection device is arranged at an air outlet of the air conditioner main body and is used for collecting air outlet sound waves at the air outlet and sending the air outlet sound waves to the controller;
the speaker is installed in the air-out region, the speaker is installed in the air conditioner main part, wherein, the air-out region is: the air conditioner comprises an area, a control unit and a control unit, wherein the intensity of wind noise is not less than a first preset intensity when the air conditioner main body works; an included angle between the sound production direction of the loudspeaker and the air outlet direction of the air conditioner main body is smaller than 90 degrees, and the included angle between the orientation of the loudspeaker and the plate surface of the front panel of the air conditioner main body ranges from 10 degrees to 50 degrees;
the controller is used for determining a target sound wave according to the air outlet sound wave and controlling the loudspeaker to sound according to the target sound wave, wherein the target sound wave is as follows: and the intensity of the sound wave obtained after the superposition with the air outlet sound wave is smaller than that of the sound wave with second preset intensity.
Optionally, the air conditioner main body is: an indoor air conditioner and/or an outdoor air conditioner.
Optionally, the controller is fixedly installed in a control box of the air conditioner main body.
Optionally, the controller is a control panel of the air conditioner main body structure.
Optionally, the controller is installed at a first position, where: except the air outlet and the air inlet of the air conditioner main body.
Optionally, the sound collection device is mounted on a guide plate and/or a wind direction blade of the air conditioner main body.
Optionally, the number of loudspeakers is an even number.
Optionally, the speaker is a flat panel speaker.
Optionally, the speaker is mounted on the front panel.
Optionally, the speakers are installed at two sides of the air outlet; or the loudspeaker is arranged inside the air outlet.
The embodiment of the invention provides an active noise reduction air conditioner structure, which comprises: the air conditioner comprises an air conditioner main body, a controller, a sound collection device and a loudspeaker; the loudspeaker is in communication connection with the controller, and the sound collection device is in communication connection with the controller; the sound collection device is arranged at an air outlet of the air conditioner main body and is used for collecting air outlet sound waves at the air outlet and sending the air outlet sound waves to the controller; the speaker is installed in the air-out region, wherein, the air-out region is: the air conditioner comprises an area, a control unit and a control unit, wherein the intensity of wind noise is not less than a first preset intensity when the air conditioner main body works; an included angle between the sound production direction of the loudspeaker and the air outlet direction of the air conditioner main body is smaller than 90 degrees, and the included angle between the orientation of the loudspeaker and the plate surface of the front panel of the air conditioner main body ranges from 10 degrees to 50 degrees; the controller is used for determining a target sound wave according to the air outlet sound wave and controlling the loudspeaker to sound according to the target sound wave, wherein the target sound wave is as follows: and the intensity of the sound wave obtained after the superposition with the air outlet sound wave is smaller than the sound wave with the preset intensity.
When the active noise reduction air conditioner structure provided by the embodiment of the invention works, the sound collecting device can collect the air outlet sound wave at the air outlet of the air conditioner and send the air outlet sound wave to the controller, and the controller determines the target sound wave with the intensity lower than the second preset intensity after being superposed with the air outlet sound wave according to the air outlet sound wave, so that the intensity of the sound wave sent by the loudspeaker is the same as that of the target sound wave after the loudspeaker gives out sound according to the target sound wave, and the sound wave sent by the loudspeaker can be superposed with the air outlet sound wave to obtain the sound wave with lower intensity, reduce the noise at the air outlet of the air conditioner structure and further improve the noise reduction effect of the air conditioner structure. In addition, compared with a passive noise reduction structure for reducing noise through noise reduction materials and the like, the active noise reduction function of the active noise reduction air conditioner structure can better reduce low-frequency noise and further improve the noise reduction performance of the air conditioner.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an active noise reduction air conditioner structure according to an embodiment of the present invention.
Fig. 2 is a schematic side view of an active noise reduction air conditioning structure according to an embodiment of the present invention.
Fig. 3 to 7 are graphs of power spectral density curves corresponding to different placement angles of the speaker obtained through simulation verification.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
The patent provides a plurality of parallel schemes, and different expressions belong to an improved scheme based on a basic scheme or a parallel scheme. Each solution has its own unique features.
Example 1
Referring to fig. 1 and fig. 2, an active noise reduction air conditioning structure provided in an embodiment of the present invention includes: the air conditioner comprises an air conditioner main body 1, a controller 2, a sound collection device 3 and a loudspeaker 4;
the loudspeaker 4 is in communication connection with the controller 2, and the sound collection device 3 is in communication connection with the controller 2; the sound collection device 3 is installed at an air outlet 5 of the air conditioner main body 1, and the sound collection device 3 is used for collecting air outlet sound waves at the air outlet 5 and sending the air outlet sound waves to the controller 2; loudspeaker 4 installs in the air-out region, loudspeaker 4 installs on the air conditioner main part 1 wherein, the air-out region is: when the air conditioner main body 1 works, the intensity of wind noise is not less than a first preset intensity; an included angle between the sound production direction of the loudspeaker 4 and the air outlet direction of the air conditioner main body 1 is smaller than 90 degrees, and the included angle between the air outlet direction of the loudspeaker 4 and the plate surface of the front panel of the air conditioner main body 1 ranges from 10 degrees to 50 degrees; the controller 2 is configured to determine a target sound wave according to the outlet air sound wave, and control the speaker 4 to sound according to the target sound wave, where the target sound wave is: and the intensity of the sound wave obtained after the superposition with the air outlet sound wave is smaller than that of the sound wave with second preset intensity.
The communication connection may be realized by a communication cable or by a wireless network signal, and is not particularly limited herein. The sound collection device 3 may be a microphone, or other devices for collecting sound, and the present application does not specifically limit the specific form of the sound collection device 3.
The sound collection device 3 and the loudspeaker 4 can be clamped and connected through a buckle, connected through screws, bonded by viscous materials, and mounted in the air outlet 5 of the air conditioner main body 1 in a magnetic adsorption mode or in the air outlet 5 of the air conditioner main body 1 in other modes.
The first preset strength may be, for example, any one of a strength value from 50 db to 100 db, or other strength values, and a person skilled in the art may set a specific value of the first preset strength according to an actual situation, when the value of the first preset strength is larger, the installation position of the speaker 4 is closer to the air outlet 5 of the air conditioner main body 1, so that the noise reduction effect is better. The first preset strength may be set according to the wind noise strength of the air-conditioning outlet 5, for example, the first preset strength may be 0.4 to 0.8 times of the wind noise strength of the air-conditioning outlet 5, or may be other multiples.
The second preset strength may be 44 db, and a human experiences well in an environment where the noise strength is less than 44 db, and certainly, the second preset strength may be any value below 44 db, it should be noted that in the embodiment of the present invention, the second preset strength may also be other values, for example, 45 db and 50 db which are greater than 44 db, but in an actual situation, the second preset strength is less than 44 db, and a human has a better experience.
The included angle between the sound production direction of the loudspeaker 4 and the air outlet direction of the air conditioner main body 1 can be any included angle smaller than 90 degrees. For example, the angle between the sound emission direction of the speaker 4 and the air outlet direction may be 30 ° or 40 °, and for example, the angle between the sound emission direction of the speaker 4 and the air outlet direction may also be 0 °, which is equivalent to that the sound emission direction of the speaker 4 is the same as the air outlet direction. The sound production direction of speaker 4 with the contained angle between the air-out direction of air conditioner main part 1 is less, and the sound wave that speaker 4 sent is easier and the air-out sound wave stack that air outlet 5 produced, consequently, in order to make noise reduction better.
According to the existing theoretical knowledge, the distribution of the secondary sound source has a great influence on the performance of the active noise reduction system, so that the reasonable distribution of the loudspeaker 4 is very necessary to be verified through simulation.
Fig. 3 to 7 are graphs of power spectral density curves corresponding to different placement angles of the speaker 4, which are obtained through simulation verification. Fig. 3 is a graph comparing a power spectral density with a frequency change when an angle between an air outlet direction of the speaker 4 and a panel surface of a front panel of the air conditioner main body 1 is 9 ° and when the speaker 4 is not mounted; fig. 4 is a graph comparing the power spectral density with frequency when the angle between the air outlet direction of the speaker 4 and the panel surface of the front panel of the air conditioner main body 1 is 10 ° and when the speaker 4 is not installed; fig. 5 is a graph comparing the power spectral density with frequency when the angle between the air outlet direction of the speaker 4 and the panel surface of the front panel of the air conditioner main body 1 is 30 ° and when the speaker 4 is not installed; fig. 6 is a graph comparing the power spectral density with frequency when the angle between the air outlet direction of the speaker 4 and the panel surface of the front panel of the air conditioner main body 1 is 50 ° and when the speaker 4 is not installed; fig. 7 is a graph comparing the power spectral density with frequency when the angle between the air outlet direction of the speaker 4 and the panel surface of the front panel of the air conditioner main body 1 is 51 ° and when the speaker 4 is not installed.
As can be seen from fig. 3 to 7, when the included angle is set to 30 °, the noise reduction performance of the active noise reduction air conditioner structure is the best, at this time, the noise reduction amount can reach 5.1dB, when the included angle is set to 10 ° and 50 °, the noise reduction amount is substantially 3dB, and when the included angle is 9 ° and 51 °, the noise reduction amount of the system is only about 1.3dB, which is not enough to be perceived by human ears. This is because when the included angle between the speaker 4 and the front panel of the air conditioner is set to 10 ° to 50 °, the active noise reduction system of the active noise reduction air conditioner structure has a strong causality, and therefore, the included angle between the air outlet direction of the speaker 4 and the panel surface of the front panel of the air conditioner main body 1 is set to 10 ° to 50 °, so as to obtain a better noise reduction effect, the sound waves of the noise source and the secondary sound source emitted by the speaker 4 at the error microphone can be efficiently cancelled, and once the angle is shifted, the secondary sound power received by the error microphone is reduced, and the performance of the corresponding active noise reduction system is also deteriorated.
When the active noise reduction air conditioner structure provided by the embodiment of the invention works, the sound collection device 3 can collect the air outlet sound wave at the air outlet 5 of the air conditioner and send the air outlet sound wave to the controller 2, and the controller 2 determines the target sound wave with the intensity smaller than the second preset intensity after being superposed with the air outlet sound wave according to the air outlet sound wave, so that the loudspeaker 4 produces sound according to the target sound wave, namely the intensity of the sound wave emitted by the loudspeaker 4 is the same as that of the target sound wave, therefore, the sound wave emitted by the loudspeaker 4 can be superposed with the air outlet sound wave to obtain the sound wave with smaller intensity, the noise at the air outlet 5 of the air conditioner structure is reduced, and the noise reduction effect of the air conditioner structure.
In one embodiment, the controller 2 may be fixedly installed in a control box of the air conditioner main body 1 to reduce a space occupied by the controller 2. The controller 2 may be installed in any position inside or outside the casing of the air conditioner main body 1, and the specific installation position of the controller 2 is not limited in the embodiment of the present invention. In another embodiment, the controller 2 may also be a control board of the structure of the air conditioner main body 1, that is, the controller 2 is integrated on the control board of the structure of the air conditioner main body 1, so that the space occupied by the controller 2 can be reduced, and the structure of the air conditioner structure is more compact.
In one embodiment, the controller 2 may be installed in a first position: except for the positions of the air outlet 5 and the air inlet of the air conditioner main body 1, the controller 2 can not block the air flow of the air conditioner main body 1.
In one embodiment, the sound collection device 3 may be mounted on a baffle plate and/or a wind vane of the air conditioner main body 1.
In one embodiment, the number of speakers 4 may be an even number. For example, the number may be 2, 4, 6, 8, or the like, or other numbers may be used. The speakers 4 may be spaced apart from each other on the air conditioner main body 1, and specifically, the speakers 4 may be spaced apart from each other on the air conditioner main body 1 along the longitudinal direction of the air conditioner main body 1, for example, may be spaced apart from each other at equal intervals.
In one embodiment, the speaker 4 may be a flat panel speaker 4.
In one embodiment, the speaker 4 may be mounted on the front panel.
In one embodiment, the speakers 4 may be installed at both sides of the outlet 5; alternatively, the speaker 4 may be installed inside the outlet 5.
The mounting position of the speaker 4 is not particularly limited.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims (10)

1. An active noise reduction air conditioning structure, comprising: the air conditioner comprises an air conditioner main body, a controller, a sound collection device and a loudspeaker;
the loudspeaker is in communication connection with the controller, and the sound collection device is in communication connection with the controller;
the sound collection device is arranged at an air outlet of the air conditioner main body and is used for collecting air outlet sound waves at the air outlet and sending the air outlet sound waves to the controller;
the speaker is installed in the air-out region, the speaker is installed in the air conditioner main part, wherein, the air-out region is: the air conditioner comprises an area, a control unit and a control unit, wherein the intensity of wind noise is not less than a first preset intensity when the air conditioner main body works; an included angle between the sound production direction of the loudspeaker and the air outlet direction of the air conditioner main body is smaller than 90 degrees, and the included angle between the air outlet direction of the loudspeaker and the plate surface of the front panel of the air conditioner main body ranges from 10 degrees to 50 degrees;
the controller is used for determining a target sound wave according to the air outlet sound wave and controlling the loudspeaker to sound according to the target sound wave, wherein the target sound wave is as follows: and the intensity of the sound wave obtained after the superposition with the air outlet sound wave is smaller than that of the sound wave with second preset intensity.
2. The active noise reduction air conditioner structure as claimed in claim 1, wherein the included angle between the sound production direction of the speaker and the air outlet direction of the air conditioner main body is the same.
3. The active noise reduction air conditioning structure of claim 1, wherein the controller is fixedly mounted within a control box of the air conditioning body.
4. The active noise reduction air conditioning structure of claim 1, wherein the controller is a control panel of the air conditioning body structure.
5. The active noise reducing air conditioning structure of claim 1, wherein the controller is mounted in a first position: except the air outlet and the air inlet of the air conditioner main body.
6. The active noise reduction air conditioning structure of claim 1,
the sound collection device is arranged on a guide plate and/or a wind direction blade of the air conditioner main body.
7. The active noise reduction air conditioning structure of claim 1, wherein the number of speakers is an even number.
8. The active noise reduction air conditioning structure of claim 1, wherein the speaker is a flat panel speaker.
9. The active noise reduction air conditioning structure of any of claims 1 to 8, wherein the speaker is mounted on the front panel.
10. The active noise reduction air conditioning structure according to any one of claims 1 to 8, wherein the speakers are installed at both sides of the air outlet; or the loudspeaker is arranged inside the air outlet.
CN202010511606.7A 2020-06-08 2020-06-08 Active noise reduction air conditioner structure Pending CN111520901A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010511606.7A CN111520901A (en) 2020-06-08 2020-06-08 Active noise reduction air conditioner structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010511606.7A CN111520901A (en) 2020-06-08 2020-06-08 Active noise reduction air conditioner structure

Publications (1)

Publication Number Publication Date
CN111520901A true CN111520901A (en) 2020-08-11

Family

ID=71911488

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010511606.7A Pending CN111520901A (en) 2020-06-08 2020-06-08 Active noise reduction air conditioner structure

Country Status (1)

Country Link
CN (1) CN111520901A (en)

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