CN114293898A - Noise elimination and reduction curtain capable of being rolled up and preparation method thereof - Google Patents

Noise elimination and reduction curtain capable of being rolled up and preparation method thereof Download PDF

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Publication number
CN114293898A
CN114293898A CN202111665805.4A CN202111665805A CN114293898A CN 114293898 A CN114293898 A CN 114293898A CN 202111665805 A CN202111665805 A CN 202111665805A CN 114293898 A CN114293898 A CN 114293898A
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noise
curtain
strip
electrode plate
strips
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CN202111665805.4A
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CN114293898B (en
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朱立东
林智洪
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Xiamen Great Sound Technology Co ltd
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Xiamen Great Sound Technology Co ltd
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Abstract

The invention provides a noise elimination and reduction curtain capable of being rolled up and a preparation method thereof, wherein the noise elimination and reduction curtain comprises the following steps: the invention is provided with a miniature air pump and a binding strip, can control the expansion of the noise elimination and noise reduction outer curtain through air pressure, can gradually expand the wound noise elimination and noise reduction outer curtain through gradual pressurization in the binding strip, and gradually and automatically winds the wound noise elimination and noise reduction outer curtain during pressure relief; the noise elimination and noise reduction outer curtain is arranged, the frequency of an external wave band can be analyzed through the sound wave receiver, the sound wave frequency is analyzed through the controller, corresponding voltage is output to act on the noise elimination strip, the noise elimination strip can generate reverse sound waves through vibration, the reverse sound waves interfere with the external sound waves, and the influence of the external sound waves on the indoor environment is reduced.

Description

Noise elimination and reduction curtain capable of being rolled up and preparation method thereof
Technical Field
The invention belongs to the field of curtains, and particularly relates to a noise elimination and reduction curtain capable of being curled and folded and a preparation method thereof.
Background
The existing curtain mainly has the functions of blocking light and dust, improving privacy and the like, but the curtain has almost no weakening capability on noise, particularly in noise areas which are difficult to avoid, such as houses adjacent to roadsides, and the like, due to the noise generated by the running of vehicles, the noise is intermittently generated sometimes, and is continuously generated sometimes, and the noise changes according to the quantity and the state of the passing vehicles.
Based on the above description, the inventor finds that the existing roll-up noise-reducing and noise-reducing curtain mainly has the following defects, for example:
because the current (window) curtain is relatively poor to the throughput of noise, lead to indoor being in the influence range of noise all the time, the noise elimination noise reduction device who commonly uses can install on the window frame, but it can block partial light, and its noise elimination noise reduction ability of too little equipment is extremely limited.
Disclosure of Invention
In order to solve the technical problems, the invention provides a noise elimination and noise reduction curtain capable of being rolled up and a preparation method thereof, and aims to solve the existing problems.
Aiming at the defects of the prior art, the invention provides a noise elimination and noise reduction curtain capable of being rolled up and a preparation method thereof, and aims and effects of the noise elimination and noise reduction curtain are achieved by the following specific technical means: a rollable, noise-dampening and noise-reducing window covering, comprising: the acoustic wave receiver is arranged on the side surface of the curtain shaft, and the controller is arranged in the curtain shaft;
the absorbing inner curtain is arranged on one side of the curtain shaft, and a plurality of absorbing sheets are arranged on the absorbing inner curtain;
the silencing and noise-reducing outer curtain is characterized in that the left side and the right side of the silencing and noise-reducing outer curtain are provided with a bundle strip, and a plurality of silencing strips are arranged between the two bundle strips;
the silencing strip is electrically connected with the controller through the binding strip, the silencing and noise-reducing outer curtain is arranged on the other side of the curtain shaft, and the silencing and noise-reducing outer curtain is parallel to the absorbing inner curtain.
Preferably, the noise elimination strip comprises a first electrode plate, a second electrode plate and a piezoelectric body, the first electrode plate is fixedly connected with the second electrode plate, the piezoelectric body is fixedly installed between the first electrode plate and the second electrode plate, and the piezoelectric body is electrically connected with the controller.
Preferably, the sound attenuation strip further comprises a protective layer, and the protective layer covers the outer surfaces of the first electrode sheet, the second electrode sheet and the piezoelectric body.
Preferably, the protective layer is an ultrathin coating with the thickness of 10-30 μm.
Preferably, the first electrode sheet, the second electrode sheet and the piezoelectric body are flexible thin films, and the thickness of the flexible thin films is 200-300 μm.
Preferably, the first electrode plate is intermittently provided with extension strips with different lengths on one side, and the second electrode plate is provided with an extension strip matched with the first electrode plate.
Preferably, a micro air pump is further arranged inside the curtain shaft, the micro air pump is electrically connected with the controller, and the micro air pump is connected with the binding strips.
Preferably, an inflation strip is arranged inside the beam strip, a coil strip is embedded into the side face of the inflation strip, a power line is further arranged inside the inflation strip, the power line is electrically connected with the controller and the silencing sheet respectively, and the inflation strip is connected with the miniature air pump.
Compared with the prior art, the invention has the following advantagesAdvantageous effects
The miniature air pump and the binding strips are arranged, the expansion of the noise elimination and noise reduction outer curtain can be controlled through air pressure, the rolled noise elimination and noise reduction outer curtain can be gradually expanded through gradual pressurization in the binding strips, and the rolling can be performed through the resilience deformation of the rolling strips during pressure relief, so that the curtain is gradually and automatically rolled;
the noise elimination and noise reduction outer curtain is arranged, the frequency of an external wave band can be analyzed through the sound wave receiver, the sound wave frequency is analyzed through the controller, corresponding voltage is output to act on the noise elimination strip, the noise elimination strip can generate reverse sound waves through vibration, the reverse sound waves interfere with the external sound waves, and the influence of the external sound waves on the indoor environment is reduced.
Drawings
Fig. 1 is a schematic structural view of a noise-damping and noise-reducing curtain capable of being rolled up according to the present invention.
Fig. 2 is a schematic front partial perspective structure view of the noise-damping and noise-reducing curtain of the present invention.
Fig. 3 is a detailed structural schematic diagram of the silencing strip.
Fig. 4 is a partial structure schematic diagram of the first electrode sheet.
FIG. 5 is a schematic cross-sectional view of a bundle.
Fig. 6 is a schematic view of the installation structure of the sound attenuation strip at a position of fig. 2.
Fig. 7 is a schematic view of a line connection structure of the sound attenuation strip.
In the figure: a curtain shaft-1, an absorbing inner curtain-2 and a silencing and noise-reducing outer curtain-3;
a sound wave receiver-11, a controller-12 and a micro air pump-13;
an absorbent sheet-21;
bundle bar-31, silencing bar-32;
a first electrode sheet-321, a second electrode sheet-322, a piezoelectric body-323;
air inflation strip-311, rolling strip-312 and power line-313.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the 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 "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
As shown in figures 1 to 7:
the invention provides a noise elimination and reduction curtain capable of being rolled up, which comprises: the acoustic curtain comprises a curtain shaft 1, an acoustic receiver 11 arranged on the side surface of the curtain shaft 1 and a controller 12 arranged in the curtain shaft 1, wherein the acoustic receiver 11 is electrically connected with the controller 12; the absorbing inner curtain 2 is arranged on one side of the curtain shaft 1, and a plurality of absorbing sheets 21 are arranged on the absorbing inner curtain 2; the silencing and noise reducing outer curtain 3 is characterized in that the left side and the right side of the silencing and noise reducing outer curtain 3 are provided with binding strips 31, and a plurality of silencing strips 32 are arranged between the two binding strips 31; the silencing strip 32 is electrically connected with the controller 12 through the binding strip 31, the silencing and noise-reducing outer curtain 3 is installed on the other side of the curtain shaft 1, and the silencing and noise-reducing outer curtain 3 is parallel to the absorbing inner curtain 2.
As a further improvement, the sound attenuation strip 32 includes a first electrode sheet 321, a second electrode sheet 322, and a piezoelectric body 323, the first electrode sheet 321 is fixedly connected to the second electrode sheet 322, the piezoelectric body 323 is fixedly installed between the first electrode sheet 321 and the second electrode sheet 322, the piezoelectric body 323 is electrically connected to the controller 12, the sound attenuation strip 32 further includes a protection layer (not shown in the figure) that covers outer surfaces of the first electrode sheet 321, the second electrode sheet 322, and the piezoelectric body 323, and the protection layer is an ultra-thin coating and has a thickness of 10-30 μm. In this embodiment, to reduce the processing difficulty, the thickness of the protective layer 324 is optimized to be 20-30 μm; the protective layer is made of high-tech environment-friendly circuit board waterproof glue, contains organic silicon components, can be attached to the surface of the noise elimination strip 32 in a light and thin mode by gluing through a spraying process, and has good elasticity and excellent moisture-proof, corrosion-proof and salt mist-proof effects after being cured.
In this embodiment, the outer noise-reducing curtain 3 is applied to a curtain, and in other embodiments, the outer noise-reducing curtain 3 may also be applied to a screen or the like, which is located indoors and has a shielding effect with a large area.
As a further improvement, the first electrode sheet 321, the second electrode sheet 322 and the piezoelectric body 323 are flexible films, the thickness of the flexible films is 200-. In this embodiment, to reduce the processing difficulty, the thicknesses of the first electrode sheet 321, the second electrode sheet 322, and the piezoelectric body 323 are selected to be 270-.
In this embodiment, the first electrode sheet 321 and the second electrode sheet 322 are in close contact with the piezoelectric body 323 by thermal curing and are fixedly connected to form a composite; in other embodiments, the first electrode sheet 321, the second electrode sheet 322 and the piezoelectric body 323 may be combined by other conductive adhesive bonding methods, so as not to affect the conduction and fixing states thereof.
As a further improvement, the vibration frequency of the noise cancellation strip 32 is mainly determined by the piezoelectric coefficient d33 of the piezoelectric body 323, a voltage is applied across the piezoelectric body 323, the noise cancellation strip 32 generates a fluctuating deformation and starts to oscillate due to the voltage applied in the direction of the z axis of the piezoelectric body 323, i.e. in the direction perpendicular to the plane of the noise cancellation strip 32, the oscillation frequency is determined by the piezoelectric coefficient d33 of the piezoelectric body 323, and if the applied voltage is an alternating signal voltage, the generated change changes correspondingly with the alternating signal voltage; the change of the alternating signal voltage is converted into a corresponding alternating signal through a controller 12 by a plurality of sound wave receivers 11 arranged on the curtain shaft 1 to obtain a converted sound wave monitored in real time, so that the alternating signal voltage is output.
As a further improvement, when the frequency of the reverse-phase sound wave of the sound-deadening strip 32 is too high and the sound-deadening strip is not triggered, the sound-deadening strip 32 can block the noise by absorbing the absorbing sheet 21 in the inner curtain 2, and the whole sound-deadening strip 32 is in a white high-light-transmission state, and the absorbing sheet 21 is made of opaque centrifugal glass wool with silver on the outside and black on the inside, and can form a complete curtain shape by matching the two. The absorbing inner curtain 2 is formed by connecting a plurality of absorbing sheets 21 through the binding strips 31, the binding strips forming the absorbing inner curtain 2 are provided with no components inside, and only the rolling strip 312 and the unfolding inflating strip 311 are arranged.
As a further improvement, a micro air pump 13 is further arranged inside the curtain shaft 1, the micro air pump 13 is electrically connected with the controller 12, the micro air pump 13 is connected with the binding strip 31, an inflating strip 311 is arranged inside the binding strip 31, a winding strip 312 is embedded in the side surface of the inflating strip 311, a power cord 313 is further arranged inside the inflating strip 311, the power cord 313 is respectively electrically connected with the controller 12 and the silencing sheet 32, and the inflating strip 311 is connected with the micro air pump 13. When an air pressure detector (not shown in the figure) in the micro air pump 13 detects that the air pressure inside the air inflation strip 311 reaches a threshold value, the air pressure is fed back to the controller 12, and the micro air pump 13 is controlled by the controller 12 to stop punching, so that the micro air pump is in a pressure maintaining state; the binding strip 31 is made of soft silica gel materials, a plurality of groove strips are arranged on the side face of the binding strip and are used for being connected with the silencing strip 32 in a matched mode, small holes are formed in the two side faces of the silencing strip 32 and are embedded into the binding strip 31, and the locking rod on the groove strips is used for fixing.
As a further improvement, the controller 12 is provided with a wireless transceiver (not shown in the figure), and the absorption inner curtain 2 and the noise reduction outer curtain 3 are wound and extended through connection with an external main control device.
As a further improvement, the conventional state of the winding strip 312 is a curled state, and the winding strip 312 is unfolded along with the increase of the air pressure inside the air inflation strip 311 until the winding strip is deformed to a flat state, so that the whole noise-reducing and noise-reducing outer curtain 3 is unfolded. Further, the coil strip 312 is made of a memory metal material, and has a light weight, a good recovery capability, and a better supporting force.
The specific use mode and function of the embodiment are as follows:
in the using process of the invention, when the sound wave receiver 11 is turned on, the micro air pump 13 is turned on by the controller 12 in a linkage manner, and then the interior of the inflatable strip 311 in the binding strip 31 is inflated, the air pressure in the inflatable strip 311 is continuously raised, and the rolled up coiled strip 312 can be gradually unfolded, so that the binding strip 31 is unfolded until the binding strip is in a straight state, when an air pressure detector (not shown in the figure) in the micro air pump 13 detects that the air pressure in the inflatable strip 311 reaches a threshold value and feeds back the air pressure to the controller 12, the micro air pump 13 is controlled by the controller 12 to stop punching, so that the binding strip is in a pressure maintaining state, so that the inflatable strip 311 is kept in the straight unfolded state, and when the inflatable strip 311 is unfolded, the noise elimination and noise reduction outer curtain 3 is in the unfolded state;
the sound wave receiver 11 identifies the external sound waves, judges the frequency range of the external sound waves, and transmits data to the controller 12, the controller 12 transmits the voltage corresponding to the frequency range to the silencing bar 32 according to the obtained frequency range, and the voltage is transmitted to the silencing bar 32 through the power line 313 in the beam 31;
when voltage is applied to the piezoelectric body 323 through the first electrode plate 321 and the second electrode plate 322, the voltage is applied to both ends of the piezoelectric body 323, and the voltage is applied in the direction of the z axis of the piezoelectric body 323, that is, in the direction perpendicular to the plane of the noise elimination bar 32, the noise elimination bar 32 generates fluctuation deformation and starts to oscillate, the oscillation frequency is determined by the piezoelectric coefficient d33 of the piezoelectric body 323, and if the applied voltage is an alternating signal voltage, the generated change changes correspondingly with the alternating signal voltage; the silencing strip 32 in the oscillation fluctuation state can move along with the air outside the vibration body, so that the silencing strip is driven to emit inverse sound waves impacting with external sound, and then emits inverse signals with the amplitude equal to that of the external signals and the phase difference pi to actively counteract the external noise, interference sound and other sound signals after passing through the control circuit, thereby achieving the aims of silencing and reducing noise.
Example 2
A method for preparing a noise elimination and reduction curtain capable of being rolled up comprises the following steps:
s1, taking two strip-shaped electrode plates, cutting one side of each electrode plate through a press-cutting process, combining the electrode plates with a piezoelectric body, and fixing the electrode plates through conductive adhesive to obtain a curtain-shaped strip;
s2, transversely placing a plurality of curtain-shaped strips, longitudinally arranging the curtain-shaped strips, and sealing the edges of the short sides by using binding strips to obtain a first curtain-shaped object;
s3, making the centrifugal glass wool into strips with the size similar to that of the curtain-shaped strips through a pressing process to obtain sound absorption strips, transversely placing a plurality of sound absorption strips, longitudinally arranging the sound absorption strips, and sealing edges of the short sides by using binding strips to obtain a second curtain-shaped object;
and S4, connecting the first curtain-shaped object and the second curtain-shaped object through the curtain shaft to form the curtain.
S11, manufacturing an electrode plate with a rectangular serrated shape on one side of the electrode plate through a press cutting process, wherein rectangular notches are formed in the electrode plate at intervals;
s12, oppositely placing the tooth surfaces of the two electrode plates with the strip teeth, and correspondingly arranging piezoelectric bodies at the rectangular notches;
and S13, when the electrode plate is combined with the piezoelectric bodies, the polarities of the electrode plates are opposite, when the electrode plates are respectively contacted with the piezoelectric bodies, the polarities of the adjacent piezoelectric bodies are different between the first electrode plate and the second electrode plate, in the sequence, the odd-numbered positions are all the same polarity, and the even-numbered positions are different polarities.
And S31, taking two glass slivers with notches, wherein the notches are relatively attached, and the notches are filled with fine wave crest cotton balls which are fixed by colloid.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (9)

1. A roll-up noise-reducing and noise-reducing window covering, comprising:
the acoustic curtain comprises a curtain shaft (1), a plurality of acoustic receivers (11) arranged on the side surface of the curtain shaft (1) and a controller (12) arranged in the curtain shaft (1), wherein the acoustic receivers (11) are electrically connected with the controller (12);
the absorbing inner curtain (2) is arranged on one side of the curtain shaft (1), and a plurality of absorbing sheets (21) are arranged on the absorbing inner curtain (2);
the silencing and noise-reducing outer curtain (3) is characterized in that the left side and the right side of the silencing and noise-reducing outer curtain (3) are provided with binding strips (31), and a plurality of silencing strips (32) are arranged between the two binding strips (31);
the silencing strip (32) is electrically connected with the controller (12) through the binding strip (31), the silencing and noise-reducing outer curtain (3) is installed on the other side of the curtain shaft (1), and the silencing and noise-reducing outer curtain (3) is parallel to the absorbing inner curtain (2).
2. A rollable, collapsible, noise-damping and noise-reducing window covering as claimed in claim 1, wherein: the noise elimination strip (32) comprises a first electrode plate (321), a second electrode plate (322) and a piezoelectric body (323), the first electrode plate (321) is fixedly connected with the second electrode plate (322), the piezoelectric body (323) is fixedly installed between the first electrode plate (321) and the second electrode plate (322), and the piezoelectric body (323) is electrically connected with the controller (12).
3. A rollable, collapsible, noise-damping and noise-reducing window covering as claimed in claim 1, wherein: the noise elimination strip (32) further comprises a protective layer, and the protective layer covers the outer surfaces of the first electrode sheet (321), the second electrode sheet (322) and the piezoelectric body (323).
4. A rollable, collapsible, noise damping and noise reducing window shade as defined in claim 3, wherein: the protective layer is an ultrathin coating, and the thickness of the ultrathin coating is 10-30 mu m.
5. A rollable, collapsible, noise-damping and noise-reducing window covering as claimed in claim 2, wherein: the first electrode plate (321), the second electrode plate (322) and the piezoelectric body (323) are flexible thin films, and the thicknesses of the first electrode plate, the second electrode plate and the piezoelectric body are 200-300 mu m.
6. A rollable, collapsible, noise-damping and noise-reducing window covering as claimed in claim 2, wherein: the electrode plate is characterized in that an extension strip (3211) with different lengths is intermittently arranged on one side of the first electrode plate (321), and an extension strip (3211) matched with the first electrode plate (321) is arranged on the second electrode plate (322).
7. A rollable, collapsible, noise-damping and noise-reducing window covering as claimed in claim 1, wherein: the curtain shaft (1) is also internally provided with a micro air pump (13), the micro air pump (13) is electrically connected with the controller (12), and the micro air pump (13) is connected with the binding strips (31).
8. A rollable, collapsible, noise-damping and noise-reducing window covering as claimed in claim 1, wherein: the novel air bag is characterized in that an air inflation strip (311) is arranged inside the bundle strip (31), a roll strip (312) is embedded into the side face of the air inflation strip (311), a power line (313) is further arranged inside the air inflation strip (311), the power line (313) is electrically connected with the controller (12) and the silencing sheet (32) respectively, and the air inflation strip (311) is connected with the miniature air pump (13).
9. A preparation method of a noise elimination and noise reduction curtain capable of being curled and folded is characterized in that:
s1, taking two strip-shaped electrode plates, cutting one side of each electrode plate through a press-cutting process, combining the electrode plates with a piezoelectric body, and fixing the electrode plates through conductive adhesive to obtain a curtain-shaped strip;
s2, transversely placing a plurality of curtain-shaped strips, longitudinally arranging the curtain-shaped strips, and sealing the edges of the short sides by using binding strips to obtain a first curtain-shaped object;
s3, making the centrifugal glass wool into strips with the size similar to that of the curtain-shaped strips through a pressing process to obtain sound absorption strips, transversely placing a plurality of sound absorption strips, longitudinally arranging the sound absorption strips, and sealing edges of the short sides by using binding strips to obtain a second curtain-shaped object;
and S4, connecting the first curtain-shaped object and the second curtain-shaped object through the curtain shaft to form the curtain.
CN202111665805.4A 2021-12-30 2021-12-30 Sound-deadening and noise-reducing curtain capable of being curled and folded and preparation method thereof Active CN114293898B (en)

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