CN210220140U

CN210220140U - Ventilation noise reduction device and intelligent ventilation noise reduction window

Info

Publication number: CN210220140U
Application number: CN201920868078.3U
Authority: CN
Inventors: Rui Wu; 吴瑞; Ruixiang Song; 宋瑞祥; Zhiyong Wei; 魏志勇
Original assignee: Beijing Municipal Institute of Labour Protection
Current assignee: Beijing Municipal Institute of Labour Protection
Priority date: 2019-06-11
Filing date: 2019-06-11
Publication date: 2020-03-31
Anticipated expiration: 2029-06-11

Abstract

The utility model relates to the field of green buildings, and provides a ventilation noise reduction device and an intelligent ventilation noise reduction window, wherein the ventilation noise reduction device comprises a ventilation component, a noise reduction component and a shell which is enclosed to form a ventilation channel, an air inlet and an air outlet are arranged on the shell, the air inlet faces outdoors, and the air outlet faces indoors; the ventilation assembly is arranged in the ventilation channel and is close to the air inlet; the noise reduction assembly comprises a secondary sound source, a reference microphone and an error microphone, the reference microphone is used for collecting noise in the ventilation channel, the reference microphone is arranged on the air outlet side of the ventilation assembly, the secondary sound source is arranged in the ventilation channel, the error microphone is arranged indoors, and the error microphone is used for collecting indoor noise. The utility model discloses a device and intelligent ventilation of making an uproar window of making an uproar falls in ventilation sets up the ventilation subassembly simultaneously and falls the subassembly of making an uproar, has solved the ventilation and has fallen the problem that can not compromise of making an uproar, and through controlling means automatic control, the operation of being convenient for.

Description

Ventilation noise reduction device and intelligent ventilation noise reduction window

Technical Field

The utility model relates to a green building technical field especially relates to a ventilation is fallen device and intelligent ventilation and is fallen window of making an uproar.

Background

People set up the window on the building outer wall, mainly for daylighting ventilation's purpose, but also need possess certain sound insulation ability simultaneously. Many times, people living in cities do not want to open windows for ventilation, and dust haze and outdoor noise can enter the room through the windows. The problems caused by the ventilation failure in time, the noise accumulation and the increase of the carbon dioxide concentration cause that a plurality of people are always in a noise and oxygen-deficient environment in a room and have great harm to the body for a long time.

The purpose of ventilation can be reached under the prerequisite of not windowing to current new trend fan or new trend system, and new trend system or new fan generally all have mechanical ventilation unit, have solved the problem of ventilation, but can indoor bring extra noise, can not solve the noise problem. And the additional installation of the fresh air machine occupies certain indoor space, causes the waste of indoor area, has large installation and modification engineering quantity and high cost, and has low popularization rate of a fresh air system and a fresh air machine.

In addition, the window can be transformed into a double-layer window, the outer layer window and the inner layer window are opened in a staggered mode to form a ventilation channel, and the ventilation channel is used for sound insulation and noise reduction and ventilation is achieved. The double-layer window is complex to modify, poor in noise reduction effect, large in size and occupies indoor space.

A common problem with existing ventilation noise reduction approaches is that the activation or deactivation of the ventilation function needs to be controlled manually. For the night sleep period, if ventilation is closed, the concentration of carbon dioxide often exceeds the standard, if ventilation is opened, noise can be caused, the sleep quality is affected, and users cannot conveniently perform staged opening and closing adjustment at night. Therefore, the existing ventilation and noise reduction mode does not solve the problem of contradiction between ventilation and noise reduction.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model discloses aim at solving the ventilation that exists among prior art or the correlation technique, fall the technical problem that the noise can not be compromise.

(II) technical scheme

In order to solve the technical problem, the utility model provides a ventilation and noise reduction device, which comprises a ventilation component, a noise reduction component and a shell body enclosing a ventilation channel, wherein the shell body is provided with an air inlet and an air outlet, the air inlet faces outdoors, and the air outlet faces indoors;

the ventilation assembly is arranged in the ventilation channel and is close to the air inlet;

the noise reduction assembly comprises a secondary sound source, a reference microphone and an error microphone, the reference microphone is used for collecting noise in the ventilation channel, the reference microphone is arranged on the air outlet side of the ventilation assembly, the secondary sound source is arranged in the ventilation channel, the error microphone is arranged indoors, and the error microphone is used for collecting indoor noise.

In some technical solutions, the ventilation assembly includes a filter and a ventilator, the filter is disposed at the air inlet, the filter is filled with a filtering material, and the ventilator is disposed above the filter.

In some technical solutions, a gas sensor is further disposed on the ventilation and noise reduction device, and the gas sensor is used for detecting the gas content in a room.

In some technical schemes, the air inlet is connected with an air inlet window, the air outlet is connected with an air outlet window, and the air inlet window and the air outlet window are connected to the shell in a rotating or sliding mode.

In some embodiments, the secondary sound source is proximate to the air outlet.

In some embodiments, the housing is coupled to a window.

In some embodiments, the housing is the same height or the same width as the window.

The utility model provides an intelligence ventilation noise reduction window, include ventilation noise reduction device and controlling means, secondary sound source, reference microphone and error microphone all connect controlling means, ventilation assembly connects controlling means.

In some aspects, the control device includes a display coupled to the housing.

In some aspects, the control device includes a button configured to be of a touch type and/or a push type.

In some technical schemes, the device further comprises a power supply device, wherein the power supply device comprises a storage battery and/or an external power supply.

(III) advantageous effects

Compared with the prior art, the utility model has the advantages of it is following: the ventilation assembly and the noise reduction assembly of the ventilation and noise reduction device filter and reduce noise of outdoor air and then send the filtered and noise-reduced outdoor air into an indoor space, so that the indoor environment is optimized. The reference microphone is arranged on the air outlet side of the ventilation component, and outdoor noise and noise generated by the ventilation component are measured simultaneously, so that the secondary sound source can simultaneously and accurately eliminate the two noises; the secondary sound source is arranged in the ventilation channel and prevents noise in the ventilation channel from entering the room; and the error microphone monitors the indoor noise and can be used for guiding the sound wave parameter adjustment of the secondary sound source or the indoor noise parameter measurement.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of the intelligent ventilation noise reduction window of the present invention;

fig. 2 is a schematic structural diagram of another preferred embodiment of the intelligent ventilation noise reduction window of the present invention;

fig. 3 is a schematic view of an indoor side structure of the ventilation and noise reduction device of the present invention;

fig. 4 is a schematic structural view of a-a in fig. 3 of the intelligent ventilation and descending device of the present invention;

in the figure, 1, a window; 2. a ventilation noise reduction device; 21. a housing; 211. an air inlet; 212. an air outlet; 22. a ventilation channel; 23. a reference microphone; 24. a ventilator; 25. a filter; 26. an error microphone; 27. a gas sensor; 28. a secondary sound source; 3. mounting a bracket; 4. a control device; 41. a button; 42. a power supply device; 43. a display; 44. a control circuit; 5. an air inlet window; 6. and an air outlet window.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

For solving the problem that ventilate and fall and can not compromise of making an uproar, the utility model provides a device and intelligent ventilation of making an uproar window of making an uproar falls has good ventilation simultaneously and falls the performance of making an uproar to have comprehensive benefit height, be convenient for reform transform, advantage such as occupation space, easy to carry out.

With reference to fig. 1-4, the utility model provides a ventilation noise reduction device, ventilation noise reduction device 2 include the ventilation subassembly, fall the subassembly of making an uproar, enclose into the casing 21 of ventilation passageway 22, are equipped with air intake 211 and air outlet 212 on the casing 21, and air intake 211 is outdoor, and air outlet 212 is indoor towards, and outdoor fresh air enters into ventilation passageway 22 through air intake 211 in, again enters into indoor from air outlet 212.

The ventilation assembly is disposed in the ventilation channel 22 and near the air inlet 211, and is used for promoting fresh air from the outside to enter the room and removing impurities and dust in the fresh air in the ventilation channel 22. The ventilation assembly is arranged close to the air inlet 211, so that fresh air can be treated quickly, and dust, impurities and the like in the fresh air are prevented from entering a room. The noise reduction assembly is used to reduce noise entering the ventilation passage 22 and noise in the room.

The noise reduction assembly comprises a secondary sound source 28, a reference microphone 23, an error microphone 26. The reference microphone 23 is used for collecting noise in the ventilation channel 22, the reference microphone 23 is arranged on the air outlet side of the ventilation component, and the reference microphone 23 is used for collecting noise which enters the ventilation channel 22 after passing through the ventilation component and noise generated by operation of the ventilation component so as to accurately measure the noise in the ventilation channel 22. A secondary sound source 28 is disposed within the ventilation channel 22, the secondary sound source 28 being adapted to emit a counter sound wave for canceling noise through the ventilation channel 22 and indoors. An error microphone 26 is placed indoors, the error microphone 26 is used to collect noise in the room, give an indication of the noise to the indoor environment, and the acoustic parameters of the secondary source 28 can be adjusted by feedback from the error microphone 26.

In the technical scheme, fresh air entering the ventilation channel 22 is conveyed and filtered through the ventilation assembly, so that the flowing and cleanness of air flow are ensured; noise reduction is carried out while ventilation is carried out, and the noise reduction effect is optimal through continuous adjustment in the noise reduction process.

Preferably, the secondary sound source 28 simultaneously eliminates the noise in the ventilation channel 22 and the room, and the secondary sound source 28 is close to the air outlet 212, so that the sound wave of the secondary sound source 28 is simultaneously transmitted to the ventilation channel 22 and the room, and the effect of simultaneous noise elimination is achieved.

The secondary sound source 28 is generally a full-range horn, and the sound emitted by the secondary sound source 28 is opposite in phase to the initial noise, and is completely cancelled at the outlet, so that the outdoor noise is isolated from the noise of the ventilator 24, and the indoor pollution is avoided.

In some embodiments, the ventilation assembly includes a filter 25 and a ventilator 24, the filter 25 is disposed at the air inlet 211, the filter 25 filters the airflow entering the ventilation channel 22 through the air inlet 211, the filter 25 is filled with a filtering material, the filtering material filters particulate matters, impurities, and the like in the airflow, the ventilator 24 is disposed above the filter 25, the filtered airflow is accelerated to flow indoors by the ventilator 24, and the flow rate and the flow velocity of the airflow can be adjusted by the ventilator 24. The ventilator 24 cooperates with a filter 25 to filter the air flow from outside the room into the room and to regulate the flow rate and quantity.

The filter material in the filter 25 is preferably a porous filter material that is capable of performing preliminary sound damping while filtering. The filter material may be removably and replaceably disposed within the filter 25. The filter 25 may be a finished filter device, or may be a cavity filled with a filter material.

In some technical solutions, the ventilation noise reduction device 2 is further provided with a gas sensor 27, the gas sensor 27 is used for detecting the gas content in the room, and the gas types detected by the gas sensor 27 include carbon dioxide, oxygen, formaldehyde, carbon monoxide and the like. Gas sensor 27 can be set to multi-parameter atmospheric environment detector, can also carry out particulate matter such as PM2.5 and detect, guarantees the comprehensive detection of indoor environment.

A temperature and humidity sensor can be further arranged on the shell 21 to monitor indoor temperature and humidity.

In some technical schemes, the air inlet 211 is connected with an air inlet window 5, the air outlet 212 is connected with an air outlet window 6, and the air inlet window 5 and the air outlet window 6 can be opened and closed so as to open and close the air inlet 211 and the air outlet 212.

Further, the air inlet window 5 and the air outlet window 6 are connected to the shell 21 in a rotating or sliding mode, and the air inlet window 5 and the air outlet window 6 are connected in various modes and suitable for different installation spaces. The air inlet window 5 and the air outlet window 6 can be manually opened and closed or can be automatically opened and closed. When the air inlet window 5 and the air outlet window 6 are both set to be opened and closed automatically, the air inlet window 5 and the air outlet window 6 are both connected with the control device 4, so that the opening and closing are controlled automatically, and the opening and closing degree is adjusted as required.

Preferably, the air inlet window 5 is disposed below the housing 21, and the air outlet window 6 is disposed above the housing 21, and is suitable for the upward flowing characteristic of the air flow.

In some technical solutions, the housing 21 is connected to the window 1, and the housing 21 of the ventilation and noise reduction device 2 may be integrally formed with the window 1, or may be a detachable structure.

Preferably, ventilation noise reduction device 2 can be dismantled and connect in window 1 and keep sealed with window 1, and easy to assemble and transportation also conveniently reequips current window 1. The shell 21 is connected with the mounting bracket 3, and the mounting bracket 3 is connected in the wall body, so that the positioning and the mounting are convenient.

The housing 21 of the ventilation noise reducer 2 may be provided at any position in the height direction or width direction of the window 1.

Further, the housing 21 of the ventilation noise reducer 2 is equal in height or width to the window 1, so that the ventilation noise reducer 2 is connected to the upper, lower, left and right sides of the window 1. When the ventilation noise reducer 2 is as wide as the window 1, as shown in fig. 2, the ventilation noise reducer 2 is disposed on the upper and lower sides of the window 1. When the ventilation noise reduction device 2 is equal to the window 1 in height, as shown in fig. 1, 3 and 4, the ventilation noise reduction device 2 is arranged on the left side and the right side of the window 1.

One window 1 may be provided with one or more ventilation and noise reduction devices 2, adjusted as required. A ventilation noise reduction device 2 may also be connected to one or more windows 1.

Preferably, the window body 1 is an acoustic window, which has a noise reduction effect.

The utility model also provides an intelligence ventilation noise reduction window, including ventilation noise reduction device 2 and controlling means 4, ventilation noise reduction device 2 is used for realizing the ventilation effect of window, solves the noise problem that the ventilation brought simultaneously, and controlling means 4 is used for realizing automatic control.

The reference microphone 23, the secondary sound source 28 and the error microphone 26 are connected to the control device 4, the signals detected by the reference microphone 23 and the error microphone 26 are transmitted to the control device 4, and the control device 4 sends signals to the secondary sound source 28 as required in order to adjust the sound wave parameters of the secondary sound source 28.

In the noise reduction of the secondary sound source 28, the noise signal detected by the reference microphone 23 is transmitted to the control device 4, the control device 4 transmits the required sound wave parameters to the secondary sound source 28, and the secondary sound source 28 operates. Further, the error microphone 26 measures a noise signal in the room and transmits the measured signal to the control device 4, and the control device 4 calculates a cancellation noise signal based on the acoustic signal transmitted from the reference microphone 23 and the acoustic signal of the error microphone 26 and transmits the cancellation noise signal to the secondary sound source 28.

When the noise reduction has errors, part of the noise is still transmitted indoors, the error microphone 26 can collect the part of the noise in real time and convert the part of the noise into an electric signal to be transmitted to the control device 4, and the secondary sound source 28 adjusts parameters to eliminate noise leakage caused by the errors. The noise reduction process can also adopt a feedforward mode, an error microphone 26 is not needed, the error microphone 26 can be used for monitoring indoor noise in real time and transmitting the indoor noise to the control device 4, the secondary sound source 28 sends sound waves and filters the indoor noise at the same time, and the phenomenon that the noise generated by indoor personnel activities is transmitted to the reference microphone 23 in the reverse direction to cause the secondary sound source 28 to emit additional unnecessary noise is avoided.

The reference microphone 23, the secondary sound source 28, and the error microphone 26 may be electrically connected or wirelessly connected to the control device 4. The control device 4 is provided with a noise reduction circuit board to which the reference microphone 23, the secondary sound source 28, and the error microphone 26 are connected by wire or wirelessly.

Further, the ventilation assembly is connected with the control device 4, the ventilator 24 and the filter 25 are both connected with the control device 4, the control device 4 sends signals to the ventilator 24 to control the starting and stopping, flow rate and the like of the ventilator 24, and the control device 4 sends signals to the filter 25 to control the operation state of the filter 25.

Further, the gas sensor 27 is connected to the control device 4, and when the signal received by the control device 4 from the gas sensor 27 is not within the set range, the control device 4 sends a signal to the ventilator 24 and/or the filter 25 of the ventilation assembly to perform ventilation and/or airflow filtering to optimize the indoor environment. The temperature/humidity sensor is connected to the control device 4.

In some embodiments, the control device 4 includes a display 43, the display 43 is connected to the housing 21, the display 43 is disposed in the room, and the display 43 is used for displaying various parameters for the user to view. The parameters displayed on the display 43 include the operating states of the ventilator 24 and the filter 25, the noise parameter measured by the reference microphone 23, the sound wave parameter of the secondary sound source 28, the noise parameter measured by the error microphone 26, the parameters of the respective components measured by the gas sensor 27, the opening and closing states of the intake window 5 and the exhaust window 6, and the like. The display 43 may be a touch display 43.

A control circuit 44 is integrated on the control device 4, and the control circuit 44 includes a noise reduction circuit and a regulation circuit of each component.

Further, the control device 4 includes a button 41, the button 41 is of a touch type and/or a press type, and the button 41 performs on-off adjustment, parameter setting, or the like.

Furthermore, the intelligent ventilation noise reduction window further comprises a power supply device 42, and the power supply device 42 comprises a storage battery and/or an external power supply. The external power source may be commercial power, and supplies power to the control device 4, the ventilator 24, the filter 25, the reference microphone 23, the secondary sound source 28, the error microphone 26, and other electrical appliances. The storage battery can directly supply power for the devices and can also be used as an auxiliary power supply of an external power supply.

The working process of the intelligent ventilation noise reduction window is as follows:

under the default outage state of the system, the ventilation assembly and the noise reduction assembly do not work, the air inlet 211 and the air outlet 212 are closed, and the whole ventilation channel 22 is guaranteed to have a sufficient sound insulation effect.

When the power is turned on and the control device 4 is started, the noise reduction assembly enters a short detection stage, during which the gas sensor 27 obtains accurate concentration data of gases such as indoor carbon dioxide, and the user can also set the operating conditions of the system, such as the minimum threshold value and the maximum threshold value of the gas concentration, and the setting mode can be operated by the button 41 or remotely, and the user can also adopt default parameters.

After the data to be collected are stable, the noise reduction assembly obtains the data to be collected, and when the data are lower than the minimum threshold value set by a user, the ventilation assembly does not need to work. When the data is above the minimum threshold, the ventilation assembly and the noise reduction assembly are activated, wherein the ventilator 24 is adjustable in state, i.e. the ventilation is adjustable. When the indoor carbon dioxide gas concentration acquisition data is greater than the maximum threshold value, the ventilator 24 is set to a full-power operating state, and the ventilation capacity is maximized at this time. When the indoor carbon dioxide gas concentration acquisition data is between the lowest threshold value and the highest threshold value, the ventilation amount is adjusted to be proper, and the economic benefit is maximized.

This technical scheme's intelligent ventilation noise reduction window has realized isolated outdoor noise to indoor influence, has full frequency channel's anti-noise characteristic, has realized according to indoor air quality automatic adjustment ventilation air volume to have and not occupation indoor space, the installation is convenient with the dismantlement, need not to perforate at the outer wall, does not influence the building outward appearance, does not destroy the advantage of building waterproof and heat preservation.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.

In the description of the present invention, the terms "plurality", and "plural" mean two or more unless otherwise specified.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A ventilation and noise reduction device is characterized by comprising a ventilation assembly, a noise reduction assembly and a shell which is enclosed to form a ventilation channel, wherein the shell is provided with an air inlet and an air outlet, the air inlet faces outdoors, and the air outlet faces indoors;

2. The ventilation and noise reduction device of claim 1, wherein the ventilation assembly comprises a filter disposed at the air inlet, the filter filled with a filtering material, and a ventilator disposed above the filter.

3. The ventilation noise reduction device of claim 1, further comprising a gas sensor for detecting the gas content in the room.

4. The ventilation and noise reduction device of claim 1, wherein the air inlet is connected with an air inlet window, the air outlet is connected with an air outlet window, and the air inlet window and the air outlet window are rotatably or slidably connected to the housing.

5. The ventilation and noise reduction device of claim 1, wherein the secondary sound source is proximate to the outlet vent.

6. A ventilating and noise reducing device according to any of claims 1-5, wherein the housing is connected to a window.

7. The ventilation and noise reduction device of claim 6, wherein the housing is the same height or the same width as the window.

8. An intelligent ventilation and noise reduction window, comprising the ventilation and noise reduction device and the control device according to any one of claims 1 to 7, wherein the reference microphone, the secondary sound source, and the error microphone are connected to the control device, and the ventilation assembly is connected to the control device.

9. The intelligent ventilation noise reduction window of claim 8, wherein the control device comprises a display and a button, the display is connected to the housing, and the button comprises a touch type and/or a press type.

10. The intelligent ventilation noise reduction window of claim 8, further comprising a power supply device, wherein the power supply device comprises a battery and/or an external power source.