CN114293898B - Sound-deadening and noise-reducing curtain capable of being curled and folded and preparation method thereof - Google Patents
Sound-deadening and noise-reducing curtain capable of being curled and folded and preparation method thereof Download PDFInfo
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- CN114293898B CN114293898B CN202111665805.4A CN202111665805A CN114293898B CN 114293898 B CN114293898 B CN 114293898B CN 202111665805 A CN202111665805 A CN 202111665805A CN 114293898 B CN114293898 B CN 114293898B
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- 230000030279 gene silencing Effects 0.000 claims abstract description 46
- 230000008030 elimination Effects 0.000 claims abstract description 18
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- 239000011241 protective layer Substances 0.000 claims description 12
- 230000009467 reduction Effects 0.000 claims description 10
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- 238000007789 sealing Methods 0.000 claims description 4
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- 238000004519 manufacturing process Methods 0.000 claims description 3
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention provides a curled and folded silencing and noise-reducing curtain and a preparation method thereof, comprising the following steps: the curtain shaft, the sound wave receiver arranged on the side surface of the curtain shaft and the controller arranged in the curtain shaft are electrically connected with the controller, the miniature air pump and the beam strip are arranged, the expansion of the noise-reducing outer curtain can be controlled by air pressure, the rolling noise-reducing outer curtain can be gradually expanded by gradually pressurizing in the beam strip, and the rolling noise-reducing outer curtain can be gradually automatically rolled during pressure relief; be provided with the outer curtain of making an uproar that falls of noise elimination can analyze the frequency of outside wave band through the sound wave receiver, carries out analysis through the controller to sound wave frequency, and the output corresponds voltage and acts on the sound elimination strip, makes the sound elimination strip can produce the reverse phase sound wave through the vibration, and the reverse phase sound wave is through interfering mutually with outside sound wave, and then reduces outside sound wave and to indoor influence.
Description
Technical Field
The invention belongs to the field of curtains, and particularly relates to a curled and folded silencing and noise-reducing curtain and a preparation method thereof.
Background
The existing curtain mainly has the functions of shielding light and dust, improving privacy and the like, but the attenuation capability of the curtain to noise is almost not, particularly in unavoidable noise areas such as houses adjacent to roadsides, the noise generated by running vehicles is generated intermittently and continuously, and the quantity and the state of passing vehicles are changed.
Based on the above description, the present inventors have found that the following drawbacks exist in a conventional collapsible noise-reducing curtain, for example:
because the current curtain is relatively poor to the throughput of noise, leads to indoor scope of influence that is in the noise all the time, and noise elimination noise reduction device that is used always 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 curled and folded silencing and noise-reducing curtain and a preparation method thereof, so as to solve the existing problems.
Aiming at the defects of the prior art, the invention provides a curled and folded silencing noise reduction curtain and a preparation method thereof, and aims and effects of the curtain are achieved by the following specific technical means: a collapsible, noise-damping and noise-reducing window covering comprising: the curtain shaft, the sound wave receiver arranged on the side surface of the curtain shaft and the controller arranged in the curtain shaft, and the sound wave receiver is electrically connected with the controller;
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 noise elimination and reduction outer curtain is characterized in that the left side and the right side of the noise elimination and reduction outer curtain are provided with binding strips, and a plurality of noise elimination strips are arranged between the two binding strips;
the silencing strip is electrically connected with the controller through the binding strip, the silencing noise-reducing outer curtain is arranged on the other side of the curtain shaft, and the silencing noise-reducing outer curtain and the absorbing inner curtain are parallel to each other.
Preferably, the silencing strip comprises a first electrode plate, a second electrode plate and a piezoelectric body, wherein 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 silencing strip further comprises a protective layer, and the protective layer covers the first electrode plate, the second electrode plate and the outer surface of the piezoelectric body.
Preferably, the protective layer is an ultrathin coating with a thickness of 10-30 μm.
Preferably, the first electrode sheet, the second electrode sheet, and the piezoelectric body are flexible films, and the thickness of the flexible films is 200-300 μm.
Preferably, one side of the first electrode plate is intermittently provided with extension strips with different lengths, and the second electrode plate is provided with extension strips matched with the first electrode plate.
Preferably, a miniature air pump is further arranged in the curtain shaft, the miniature air pump is electrically connected with the controller, and the miniature air pump is connected with the binding strip.
Preferably, the inside of the binding strip is provided with an inflatable strip, a winding strip is embedded and installed on the side face of the inflatable strip, a power line is further arranged inside the inflatable strip, the power line is respectively and electrically connected with the controller and the silencing strip, and the inflatable strip is connected with the miniature air pump.
Compared with the prior art, the invention has the following stepsAdvantageous effects：
The miniature air pump and the binding strip are arranged, the expansion of the silencing and noise-reducing outer curtain can be controlled by air pressure, the coiled silencing and noise-reducing outer curtain can be gradually expanded by gradually pressurizing in the binding strip, and when the pressure is relieved, the coiled curtain can be coiled through the restorative deformation of the coiling strip, so that the curtain is gradually and automatically coiled;
be provided with the outer curtain of making an uproar that falls of noise elimination can analyze the frequency of outside wave band through the sound wave receiver, carries out analysis through the controller to sound wave frequency, and the output corresponds voltage and acts on the sound elimination strip, makes the sound elimination strip can produce the reverse phase sound wave through the vibration, and the reverse phase sound wave is through interfering mutually with outside sound wave, and then reduces outside sound wave and to indoor influence.
Drawings
Fig. 1 is a schematic structural view of a collapsible noise-reducing and silencing window covering according to the present invention.
Fig. 2 is a schematic view of a front partial perspective structure of a collapsible noise-reducing and silencing window covering of the present invention.
Fig. 3 is a detailed structural schematic diagram of the muffler strip.
Fig. 4 is a schematic view of a partial structure of the first electrode sheet.
Fig. 5 is a schematic diagram of a cross-sectional structure of a bundle bar.
Fig. 6 is a schematic view of the installation structure of the muffler strip at a of fig. 2.
Fig. 7 is a schematic diagram of a circuit connection structure of the muffler strip.
In the figure: a curtain shaft-1, an absorbing inner curtain-2, a silencing and noise-reducing outer curtain-3;
the device comprises an acoustic wave receiver-11, a controller-12 and a miniature air pump-13;
an absorbent sheet-21;
bundle bar-31, silencing bar-32;
a first electrode sheet-321, a second electrode sheet-322, and a piezoelectric body-323;
inflatable strip-311, coiled strip-312, and power cord-313.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the invention but are not intended to limit the scope of the invention.
In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore 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 should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1
As shown in fig. 1 to 7:
the invention provides a curled and folded silencing and noise-reducing curtain, which comprises: a curtain shaft 1, an acoustic wave receiver 11 arranged on the side surface of the curtain shaft 1, and a controller 12 arranged inside the curtain shaft 1, wherein the acoustic wave receiver 11 is electrically connected with the controller 12; an absorbing inner curtain 2 arranged on one side of the curtain shaft 1, wherein a plurality of absorbing sheets 21 are arranged on the absorbing inner curtain 2; the noise elimination and reduction outer curtain 3, wherein the left side and the right side of the noise elimination and reduction outer curtain 3 are provided with binding strips 31, and a plurality of noise elimination 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 arranged on the other side of the curtain shaft 1, and the silencing and noise-reducing outer curtain 3 and the absorbing inner curtain 2 are parallel to each other.
As a further improvement, the silencing strip 32 includes a first electrode plate 321, a second electrode plate 322, and a piezoelectric body 323, where 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, the piezoelectric body 323 is electrically connected with the controller 12, and the silencing strip 32 further includes a protective layer (not shown in the figure) that covers the outer surfaces of the first electrode plate 321, the second electrode plate 322, and the piezoelectric body 323, and the protective layer is an ultrathin coating with a thickness of 10-30 μm. In this embodiment, to reduce the processing difficulty, the protective layer 324 coating thickness is optimized to 20-30 μm; the protective layer adopts high new-heel environment-friendly circuit board waterproof glue, contains organic silicon components, is glued through a spraying process, can be light and thin and is attached to the surface of the silencing strip 32, and after being solidified, the protective layer has good elasticity and has excellent effects of moisture resistance, corrosion resistance and salt fog resistance.
In this embodiment, the noise-reducing and noise-eliminating outer curtain 3 is applied to a window curtain, and in other embodiments, the noise-reducing and noise-eliminating outer curtain 3 may be applied to a screen or the like, and is located on an article having a large area shielding effect.
As a further improvement, the first electrode plate 321, the second electrode plate 322 and the piezoelectric body 323 are flexible films with thickness of 200-300 μm, one side of the first electrode plate 321 is intermittently provided with extension strips 3211 with different lengths, and the second electrode plate 322 is provided with extension strips 3211 matched with the first electrode plate 321. In this embodiment, in order to reduce the processing difficulty, the thicknesses of the thin films of the first electrode plate 321, the second electrode plate 322 and the piezoelectric body 323 are 270-300 μm, wherein the first electrode plate 321 and the second electrode plate 322 are comb electrodes, the piezoelectric body 323 is adhered to the odd-numbered stripes of the comb electrodes on the first electrode plate 321 by conductive adhesive, and the piezoelectric body 323 is adhered to the even-numbered stripes of the comb electrodes on the second electrode plate 322 by conductive adhesive, so as to be connected with the piezoelectric body 323 in a matching manner.
In this embodiment, the first electrode plate 321 and the second electrode plate 322 are closely contacted and fixedly connected with the piezoelectric body 323 by adopting a heat curing mode to form a composite body; in other embodiments, other conductive adhesive bonding methods may be used to combine the first electrode pad 321, the second electrode pad 322 and the piezoelectric body 323, so as not to affect the energizing and fixing states.
As a further improvement, the vibration frequency of the silencing strip 32 is mainly determined by the piezoelectric coefficient d33 of the piezoelectric body 323, and voltages are applied to two ends of the piezoelectric body 323, and as the applied voltages are applied in the z-axis direction of the piezoelectric body 323, namely, in the direction perpendicular to the plane direction of the silencing strip 32, the silencing strip 32 generates fluctuation deformation and starts to vibrate, the vibration frequency is determined by the piezoelectric coefficient d33 of the piezoelectric body 323, and if the applied voltages are alternating signal voltages, the generated changes correspondingly change along with the alternating signal voltages; the change of the alternating signal voltage is monitored in real time through a plurality of sound wave receivers 11 arranged on the curtain shaft 1, and the obtained converted sound waves are converted into corresponding alternating signals through a controller 12, so that the alternating signal voltage is output.
As a further improvement, when the frequency of the inverted sound wave of the silencing strip 32 is too high and is not triggered, the silencing strip 32 can block noise by absorbing the absorbing sheet 21 in the inner curtain 2, the silencing strip 32 is in a white high-light-transmission state as a whole, the absorbing sheet 21 is made of opaque centrifugal glass wool with silver outside and black inside, and the two absorbing sheets can be matched to form a complete curtain shape. Wherein, the plurality of absorbing sheets 21 are connected by the beam 31 to form the absorbing inner curtain 2, and no component is arranged in the beam forming the absorbing inner curtain 2, and only the inflatable strips 311 for rolling up the rolling strips 312 and unfolding are arranged.
As a further improvement, the inside of the curtain shaft 1 is also provided with a micro air pump 13, 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 air charging strip 311 is arranged inside the binding strip 31, a winding strip 312 is embedded and installed on the side face of the air charging strip 311, a power line 313 is also arranged inside the air charging strip 311, the power line 313 is electrically connected with the controller 12 and the silencing strip 32 respectively, and the air charging 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 in the air inflation strip 311 reaches a threshold value, the air pressure is fed back to the controller 12, and the controller 12 controls the micro air pump 13 to stop punching, so that the micro air pump 13 is in a pressure maintaining state; the binding strip 31 is made of soft silica gel material, a plurality of groove strips are arranged on the side faces of the binding strip 31 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, the binding strip 31 is embedded into the binding strip, and the binding strip is fixed through a lock rod on the groove strips.
As a further improvement, the controller 12 is provided with a wireless transceiver (not shown in the figure), and the controller is connected with an external main control device to perform rolling and stretching of the absorbing inner curtain 2 and the noise-reducing outer curtain 3.
As a further improvement, the conventional state of the winding strip 312 is a curled state, and the winding strip 312 is unfolded until being deformed into a straight state by increasing the air pressure inside the inflatable strip 311, 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, which has a light weight, good recovery ability, and better supporting force.
Specific use and action of the embodiment:
in the use process of the invention, when the sound wave receiver 11 is started, the micro air pump 13 is started in a linkage way through the controller 12, so that the interior of the inflatable strip 311 in the beam strip 31 is inflated, the air pressure in the interior of the inflatable strip 311 is continuously increased, the rolled strip 312 can be gradually stretched, the beam strip 31 is stretched until the 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 interior of the inflatable strip 311 reaches a threshold value, the threshold value is fed back to the controller 12, the micro air pump 13 is controlled by the controller 12 to stop punching, so that the pressure is kept in a pressure keeping state, the inflatable strip 311 is kept in a straight stretching state, and when the inflatable strip 311 is stretched, the noise-reducing outer curtain 3 is in the stretching state;
identifying external sound waves through the sound wave receiver 11, judging the frequency range of the external sound waves, transmitting data to the controller 12, and transmitting voltage corresponding to the frequency range to the silencing strip 32 through the controller 12 according to the obtained frequency range and transmitting the voltage to the silencing strip 32 through a power line 313 inside the beam strip 31;
when a 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 two ends of the piezoelectric body 323, and the voltage is applied in the z-axis direction of the piezoelectric body 323, namely, in the direction perpendicular to the plane direction of the silencing strip 32, so that the silencing strip 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 along with the alternating signal voltage; the silencing strip 32 in the oscillation fluctuation state can move along with the air outside the vibrating body, so that the silencing strip is driven to emit the opposite-phase sound wave which is impacted by external sound, and the control circuit then emits the opposite-phase signal which is pi-phase different from the external signal in amplitude to actively counteract the external noise, interference sound and other sound signals, thereby achieving the purposes of silencing and noise reduction.
Example 2
A preparation method of a curled and folded silencing and noise-reducing curtain 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 curtain-shaped strips;
s2, transversely placing a plurality of curtain-shaped strips, longitudinally arranging the curtain-shaped strips, and sealing edges on the short side by using a binding strip to obtain a first curtain-shaped object;
s3, manufacturing centrifugal glass wool into strips with the same size as the curtain-shaped strips through a pressing process, obtaining sound-absorbing strips, transversely placing a plurality of the sound-absorbing strips, longitudinally arranging the sound-absorbing strips, and edge-sealing the short sides through binding strips to obtain a second curtain-shaped object;
s4, connecting the first curtain object and the second curtain object through the curtain shaft to form the curtain.
S11, manufacturing an electrode plate with rectangular strip teeth on one side of the electrode plate through a press-cutting process, wherein rectangular notches are intermittently formed in the electrode plate;
s12, oppositely placing tooth surfaces of two electrode plates with teeth, and correspondingly arranging piezoelectric bodies at a plurality of rectangular notches;
and S13, when the electrode plates are combined with the piezoelectric body, the electrode plates are required to be opposite in polarity, when the electrode plates are respectively contacted with the piezoelectric body, the polarities of the adjacent piezoelectric bodies are ensured to be different on the first electrode plate and the second electrode plate, and in the sorting process, the odd-numbered positions are the same polarity, and the even-numbered positions are the different polarities.
S31, taking two glass tampons with notches, relatively attaching the notches, filling fine crest tampons in the notches, and fixing the two glass tampons through colloid.
The embodiments of the 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 embodiments were 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 (7)
1. A collapsible, noise-damping and noise-reducing window covering, comprising:
the curtain shaft (1), a plurality of sound wave receivers (11) arranged on the side face of the curtain shaft (1) and a controller (12) arranged inside the curtain shaft (1), wherein the sound wave receivers (11) are electrically connected with the controller (12);
an absorption inner curtain (2) which is arranged at one side of the curtain shaft (1), wherein a plurality of absorption sheets (21) are arranged on the absorption inner curtain (2);
the noise elimination and reduction outer curtain (3), wherein the left side and the right side of the noise elimination and reduction outer curtain (3) are provided with binding strips (31), and a plurality of noise elimination 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 arranged on the other side of the curtain shaft (1), and the silencing and noise-reducing outer curtain (3) and the absorbing inner curtain (2) are parallel to each other;
the silencing strip (32) comprises a first electrode plate (321), a second electrode plate (322) and a piezoelectric body (323), wherein the first electrode plate (321) is fixedly connected with the second electrode plate (322), the piezoelectric body (323) is fixedly arranged between the first electrode plate (321) and the second electrode plate (322), and the piezoelectric body (323) is electrically connected with the controller (12);
the silencing strip (32) further comprises a protective layer, and the protective layer covers the outer surfaces of the first electrode plate (321), the second electrode plate (322) and the piezoelectric body (323).
2. A collapsible noise-abatement window covering as defined in claim 1, wherein: the protective layer is an ultrathin coating, and the thickness of the protective layer is 10-30 mu m.
3. A collapsible noise-abatement window covering as defined in claim 1, wherein: the first electrode plate (321), the second electrode plate (322) and the piezoelectric body (323) are flexible films, and the thickness of the flexible films is 200-300 mu m.
4. A collapsible noise-abatement window covering as defined in claim 1, wherein: one side of the first electrode plate (321) is intermittently provided with extension strips (3211) with different lengths, and the second electrode plate (322) is provided with extension strips (3211) matched with the first electrode plate (321).
5. A collapsible noise-abatement window covering as defined in claim 1, wherein: the inside of curtain axle (1) still is equipped with miniature air pump (13), miniature air pump (13) with controller (12) electricity is connected, miniature air pump (13) are connected with restraint strip (31).
6. A collapsible noise-abatement window covering as defined in claim 1, wherein: the inside strip (311) that aerifys that is equipped with of restrainting strip (31), strip (312) are installed in embedding of aerifing strip (311) side, it still is equipped with power cord (313) to aerify strip (311) inside, power cord (313) are connected with controller (12), noise elimination strip (32) electricity respectively, aerify strip (311) and miniature air pump (13) are connected.
7. A preparation method of a curled and folded silencing and noise-reducing curtain is characterized by comprising the following steps of:
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 curtain-shaped strips;
s2, transversely placing a plurality of curtain-shaped strips, longitudinally arranging the curtain-shaped strips, and sealing edges on the short side by using a binding strip to obtain a first curtain-shaped object;
s3, manufacturing centrifugal glass wool into strips with the same size as the curtain-shaped strips through a pressing process, obtaining sound-absorbing strips, transversely placing a plurality of the sound-absorbing strips, longitudinally arranging the sound-absorbing strips, and edge-sealing the short sides through binding strips to obtain a second curtain-shaped object;
s4, connecting the first curtain object and the second curtain object through the curtain shaft to form the curtain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111665805.4A CN114293898B (en) | 2021-12-30 | 2021-12-30 | Sound-deadening and noise-reducing curtain capable of being curled and folded and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111665805.4A CN114293898B (en) | 2021-12-30 | 2021-12-30 | Sound-deadening and noise-reducing curtain capable of being curled and folded and preparation method thereof |
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| Publication Number | Publication Date |
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| CN114293898A CN114293898A (en) | 2022-04-08 |
| CN114293898B true CN114293898B (en) | 2023-12-08 |
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