Sound wave energy absorption device

Abstract

The embodiment of the present application provides a sound wave energy absorption device, which relates to the field of acoustic technical equipment. It includes: a box body, the box body has a cavity, and M openings are opened on the surface of the box body, where M is a positive integer. M sound wave energy absorption units are correspondingly arranged on the M openings. N prompt output units are correspondingly connected to N sound wave energy absorption units among the M sound wave energy absorption units, and N is a positive integer not greater than M. The ultra-low frequency standing wave energy of low-frequency sound waves with a frequency lower than a preset frequency in the sound is converted into kinetic energy or electrical energy through the resonance of the M sound wave energy absorption units, thereby achieving the absorption of ultra-low frequency standing wave energy to avoid harm to the human body. In addition, by absorbing low-frequency standing wave energy through energy conversion rather than absorbing materials, the volume of the sound wave energy absorption device can be greatly reduced, and it can be conveniently applied in various small spaces, making the application prospect of the sound wave energy absorption device extremely broad.

Description

Technical Field

[0001] The present application relates to the field of acoustic technology equipment, and in particular, to a sound wave energy absorbing device. Background Art

[0002] At present, architectural acoustics has been relatively mature in professional large spaces such as concert halls and stage theaters. Acoustic equipment can absorb or process the energy generated by sound in concert halls and stage theaters by using special materials, avoiding the impact on the human body while also providing good audio-visual effects. Summary of the invention

[0003] The purpose of this application is to provide a sound wave energy absorption device.

[0004] The embodiments of the present application are implemented in the following manner:

[0005] In a first aspect, an embodiment of the present application provides a sound wave energy absorption device, comprising: a box body, the box body having a cavity, the surface of the box body having M openings, M being a positive integer. M sound wave energy absorption units, correspondingly arranged on the M openings. N prompt output units, correspondingly connected to N sound wave energy absorption units among the M sound wave energy absorption units, N being a positive integer not greater than M. Wherein, the sound wave energy absorption device is arranged in an environment where an audio system is located, and when the audio system is outputting sound, each of the M sound wave energy absorption units is used to generate resonance after absorbing low-frequency sound waves in the sound whose frequency is lower than a preset frequency, and convert the kinetic energy generated by the resonance into electrical energy; each of the N prompt output units is used to obtain power from the corresponding sound wave energy absorption unit among the N sound wave energy absorption units, and then output prompt information.

[0006] In combination with the technical solution provided in the first aspect above, in some possible implementations, each sound wave energy absorption unit includes: a concave sound wave energy absorption basin, having a first end and a second end, wherein the first end is mounted on a corresponding opening among the M openings, and the second end extends into the cavity. An induction coil cylinder is connected to the second end. An annular magnet is connected to the cavity and mounted on the induction coil cylinder. The concave sound wave energy absorption basin is used to absorb low-frequency sound waves with a frequency lower than a preset frequency in the sound and drive the induction coil cylinder to generate resonance together; the induction coil cylinder is used to cut the magnetic flux lines generated by the annular magnet according to the kinetic energy generated by the resonance, and convert the kinetic energy generated by the resonance into electrical energy.

[0007] In combination with the technical solution provided in the first aspect above, in some possible implementations, the first end is connected to the corresponding one of the M openings through an elastic material and is sleeved by the corresponding one of the M openings.

[0008] In combination with the technical solution provided in the first aspect above, in some possible implementations, each prompt output unit includes: a rectifier and boost subunit, connected to the corresponding sound wave energy absorption unit among the N sound wave energy absorption units. A prompt subunit is connected to the rectifier and boost subunit. The rectifier and boost subunit is used to rectify the electric energy obtained from the corresponding sound wave energy absorption unit from AC to DC, and boost the DC to an adaptive electric energy whose voltage meets a preset voltage; the prompt subunit is used to obtain power supply according to the adaptive electric energy, and then output prompt information.

[0009] In combination with the technical solution provided in the first aspect above, in some possible implementations, the prompt subunit includes: at least one light emitting diode connected in series and / or in parallel.

[0010] In combination with the technical solution provided in the first aspect above, in some possible implementations, the prompt subunit includes: at least one display screen connected in series and / or in parallel.

[0011] In combination with the technical solution provided in the first aspect above, in some possible implementations, the rectifier-boost subunit includes: a rectifier circuit connected to the corresponding acoustic wave energy absorption unit. A boost chip connected to the rectifier circuit and the prompt subunit, respectively. The rectifier circuit is used to rectify the electric energy output by the corresponding acoustic wave energy absorption unit from AC to DC; and the boost chip is used to boost the DC to an adaptive electric energy whose voltage meets a preset voltage.

[0012] In combination with the technical solution provided in the first aspect above, in some possible implementations, the rectifier circuit is a bridge-type full-wave rectifier circuit, and the boost chip is a DC-DC boost chip.

[0013] In combination with the technical solution provided in the first aspect above, in some possible implementations, each of the N prompt output units further includes: an electric energy storage subunit, which is respectively connected to the rectification and boost subunit and the prompt subunit.

[0014] In combination with the technical solution provided in the first aspect above, in some possible implementations, the electric energy storage subunit is a supercapacitor, one end of the supercapacitor is respectively connected to the rectification and boost subunit and the prompt subunit, and the other end of the supercapacitor is grounded.

[0015] Compared with the prior art, the beneficial effects of the embodiments of the present application are:

[0016] The ultra-low frequency standing wave energy of low frequency sound waves in the sound with a frequency lower than the preset frequency is converted into kinetic energy or electrical energy through the resonance of M sound wave energy absorption units, thereby achieving the absorption of ultra-low frequency standing wave energy to avoid harm to the human body, and also clearly informing the user in a prompting manner that the ultra-low frequency standing wave energy is absorbed, thereby improving the user experience. In addition, by absorbing low frequency standing wave energy through energy conversion rather than absorbing materials, the volume of the sound wave energy absorption device can be greatly reduced, and the sound wave energy absorption device can be conveniently used in various small spaces, making the application prospect of the sound wave energy absorption device extremely broad.

[0017] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A cross-sectional schematic diagram of a sound wave energy absorbing device provided in an embodiment of the present application is shown;

[0020] Figure 2 A cross-sectional schematic diagram of a sound wave energy absorbing unit in a sound wave energy absorbing device provided in an embodiment of the present application is shown;

[0021] Figure 3 A first structural block diagram of a sound wave energy absorption device provided in an embodiment of the present application is shown;

[0022] Figure 4 A second structural block diagram of a sound wave energy absorption device provided in an embodiment of the present application is shown;

[0023] Figure 5 The measured attenuation curve of low-frequency sound waves of a sound wave energy absorption device provided in an embodiment of the present application is shown.

[0024] Icons: 100-sound wave energy absorption device; 110-housing; 111-cavity; 112-opening; 120-sound wave energy absorption unit; 121-concave sound wave energy absorption basin; 1211-first end; 1212-second end; 122-induction coil cylinder; 123-annular magnet; 130-prompt output unit; 131-rectifier and boost subunit; 1311-rectifier circuit; 1312-boost chip; 132-prompt subunit; 133-electric energy storage subunit. DETAILED DESCRIPTION

[0025] At present, in professional large spaces such as concert halls and stage theaters, acoustic equipment made of special materials needs to be installed to absorb or process the energy generated by sound, so as to avoid affecting the human body while also bringing good audio-visual effects.

[0026] After long-term practical research, the inventor found that in a large space, it is not easy to form ultra-low frequency standing waves because the distance between opposite reflection surfaces is relatively large. The volume of the space is also relatively large. Even if ultra-low frequency standing waves are generated, their energy decays relatively quickly, so there is almost no problem of ultra-low frequency standing waves in large space acoustics. The calculation formula for standing waves is: standing wave frequency f0 = sound speed / distance between opposite surfaces of space / 2. In small spaces such as home theaters and recording studios, standing waves often occur seriously in the frequency band below 125Hz, and if the distance from a certain position in the small space to the sound source is converted to an integer multiple of the standing wave frequency, the standing waves at that position will appear superimposed and become more serious. For example, in a 5.1m*5.5m square space, the frequency of superimposed standing waves can even reach 32Hz-34Hz. However, due to the low output value of small spaces, how to absorb the ultra-low frequency standing wave energy generated in small spaces has been ignored by various acoustic institutions in the world, and research and investment are relatively small. Therefore, there is no professional and targeted solution to the energy generated by sound in small spaces, especially the ultra-low frequency standing wave energy generated by sound in small spaces.

[0027] And because there is no targeted research and solution, the inventor found through research that, with the increasing popularity of private audio-visual rooms, it is obviously unreasonable to put professional large-space absorption methods and absorption equipment into small spaces. For example, the existing ultra-low-frequency standing wave processing technology often uses low-frequency traps for processing, and the main structure of the low-frequency trap is the superposition of porous sound-absorbing materials. According to the calculation formula of absorption frequency f0 = sound speed / thickness of sound-absorbing material / (10-4), if you want to absorb 32HZ standing waves, then the calculated thickness is 1.076 meters to 2.6875 meters. Obviously, it is very difficult to set an absorption material with a thickness of 1.076 meters to 2.6875 meters in a small space. Obviously, a small space cannot accommodate materials of this thickness.

[0028] The defects existing in the solutions in the above-mentioned prior art are the results obtained by the inventor after practice and careful research. Therefore, the discovery process of the above-mentioned problems and the solutions proposed in the embodiments of the present application for the above-mentioned problems below should be the contributions made by the inventor to the present application during the application process.

[0029] Based on the above research, an embodiment of the present application provides a sound wave energy absorption device. The sound wave energy absorption device converts the ultra-low frequency standing wave energy of low-frequency sound waves with a frequency lower than a preset frequency in the sound into kinetic energy or electrical energy through the resonance of M sound wave energy absorption units, thereby achieving the absorption of ultra-low frequency standing wave energy to avoid harm to the human body, and also clearly informs the user in a prompting manner that the ultra-low frequency standing wave energy is absorbed, thereby improving the user experience. In addition, by absorbing low-frequency standing wave energy through energy conversion rather than absorbing materials, the volume of the sound wave energy absorption device can be greatly reduced, and the sound wave energy absorption device can be conveniently used in various small spaces, making the application prospects of the sound wave energy absorption device extremely broad.

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0031] In the description of this application, it should be noted that the terms "middle", "upper", "vertical", "horizontal", "inner", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing this application and simplifying the description, and 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 therefore cannot be understood as a limitation on this application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0032] In addition, the terms "horizontal", "vertical", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0033] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] See also Figure 1 An embodiment of the present application provides a sound wave energy absorbing device 100 , which includes: a box 110 , a sound wave energy absorbing unit 120 and a prompt output unit 130 .

[0035] The box 110 may be a closed structure made of a plate with a certain strength. The plate of the box 110 may be a plate made of wood board, fiberboard, plastic board, ceramic or metal, etc., which is not specifically limited in this embodiment. The shape of the closed structure of the box 110 may be a triangular prism, a quadrangular prism, a cube, a cylinder or an irregular prism, etc., which is not specifically limited in this embodiment. In the specific implementation, the shape and size of the box 110 may be customized according to the site conditions of the acoustic wave energy absorption device 100. For example, if the site is larger, the box 110 may be made slightly larger. If there is a groove on the site, the shape and size of the box 110 may be made to match the groove to be embedded in the groove. The closed structure of the box 110 enables the box 110 to have a cavity 111, which can be used to partially accommodate the acoustic wave energy absorption unit 120 and the prompt output unit 130. Furthermore, the shape of the cavity 111 can be adapted to the shape of the outside of the box 110, but the cavity 111 can also be other shapes as long as it can meet the above-mentioned accommodation effect. However, considering that there are many small-sized apartments at present, the size of the box 110 should be as small as possible. For example, the thickness of the box 110 can be as low as 10CM, but it is not limited. Furthermore, in actual applications, paint or pictures can be applied on the box 110 so that the box 110 can be integrated with the application environment, thereby improving the user experience.

[0036] In this embodiment, the sound wave energy absorption unit 120 needs to be installed on the box body 110 to achieve fixation. In order to facilitate the installation of the sound wave energy absorption unit 120, M openings 112 are provided on the upper surface of the box body 110, where M is a positive integer, for example, M is 3, and each of the M openings 112 is used to set a corresponding sound wave energy absorption unit 120. Among them, the shape of each opening 112 is not specifically limited in this embodiment, and it can meet the requirements of being able to set the corresponding sound wave energy absorption unit 120. In addition, according to the position arrangement requirements of the M openings 112 on the box body 110, the shape of each opening 112 is not necessarily the same as the shape of other openings 112. For example, some openings 112 can be circular, while other openings 112 are rectangular. In addition, in order to facilitate the setting of a corresponding sound wave energy absorption unit 120 on each opening 112, the size of each opening 112 should be slightly larger than the size of the corresponding sound wave energy absorption unit 120.

[0037] See also Figures 1 to 3 The number of the sound wave energy absorbing units 120 may be M, that is, the M sound wave energy absorbing units 120 are correspondingly arranged on the M openings 112 .

[0038] The sound wave energy absorption device 100 is arranged in an environment where a sound system is located, and the environment can be a small space, for example, a home theater. When the sound system is outputting sound, each of the M sound wave energy absorption units 120 is used to generate resonance after absorbing low-frequency sound waves with a frequency lower than a preset frequency in the sound, and convert the kinetic energy generated by the resonance into electrical energy.

[0039] Of course, in addition to being placed in an environment where an audio system is located, the sound wave energy absorption device 100 in this embodiment can also be set in any environment with ultra-low frequency sound wave noise. Setting it in the environment where an audio system is located is only an example method for easy explanation and understanding of this embodiment, and is not a limitation of this embodiment.

[0040] Specifically, for the M sound wave energy absorption units 120, the installation principle and working principle of each sound wave energy absorption unit 120 in the M sound wave energy absorption units 120 are basically the same. For the convenience of clear description and the understanding of the present solution by those skilled in the art, this embodiment takes any one of the M sound wave energy absorption units 120 as an example to provide a specific description of the structure and principle of the sound wave energy absorption unit 120.

[0041] The sound wave energy absorption unit 120 includes a concave sound wave energy absorption basin 121 , an induction coil cylinder 122 and a ring magnet 123 .

[0042] The concave sound wave energy absorption basin 121 can be a concave basin-shaped structure made of a material that can generate resonance. Among them, the material made of the concave sound wave energy is capable of generating resonance under the action of low-frequency sound waves. For example, the material made of the concave sound wave energy is a paper material. It can be understood that the concave sound wave energy absorption basin 121 can also be other structures, such as a flat plate structure. As long as its structure can meet the requirements of generating resonance under the action of low-frequency sound waves, the concave basin-shaped structure is only an example for ease of understanding and is not intended to be a limitation of this embodiment. In actual applications, due to the different sizes of the concave sound wave energy absorption basin 121, the different materials of the concave sound wave energy absorption basin 121, and the different counterweights of the concave sound wave energy absorption basin 121, the preset frequencies that can trigger the concave sound wave energy absorption basin 121 to generate a resonant frequency are also different. For example, if the counterweight of the concave sound wave energy absorption basin 121 is larger, the preset frequency is lower. In this embodiment, the preset frequency can be 150Hz, that is, when the frequency of the sound is lower than the preset frequency of 150Hz, the concave sound wave energy absorption basin 121 can produce resonance of the same frequency, but it is not limited to this embodiment. According to the above method, in actual implementation, those skilled in the art can adjust the preset frequency that triggers the vibration of the concave sound wave energy absorption basin 121, for example, by increasing the counterweight to reduce the preset frequency to 120Hz. Further, in this embodiment, the concave sound wave energy absorption basin 121 also has a minimum frequency that is out of resonance, for example, the minimum frequency can be 20Hz. That is to say, after the frequency of the sound wave is lower than the minimum frequency, the concave sound wave energy absorption basin 121 can no longer resonate. Of course, according to the above method, in actual implementation, those skilled in the art can adjust the minimum frequency of the deviating concave sound wave energy absorption basin 121, for example, by reducing the counterweight to increase the minimum frequency to 30Hz. It can be understood that the frequency of the resonance generated by the concave sound wave energy absorption basin 121 has a range in this embodiment, for example, the frequency range of the resonance is 20Hz to 150Hz.

[0043] The concave basin-shaped structure of the concave sound wave energy absorption basin 121 makes the concave sound wave energy absorption basin 121 have a first end 1211 and a second end 1212 opposite to each other. For example, the basin edge of the concave sound wave energy absorption basin 121 is the first end 1211, and the basin bottom of the concave sound wave energy absorption basin 121 is the second end 1212. When the concave sound wave energy absorption basin 121 is set at a corresponding opening 112, the first end 1211 of the concave sound wave energy absorption basin 121 can be set and embedded in a corresponding opening 112 among the M openings 112. Further, in order to ensure that the resonance effect of the concave sound wave energy absorption basin 121 will not be affected by the fixing method after the concave sound wave energy absorption basin 121 is set on the opening 112 and fixed, the first end 1211 of the concave sound wave energy absorption basin 121 can be connected to a corresponding opening 112 among the M openings 112 through an elastic material and set by the corresponding opening 112. For example, the elastic material can be rubber. The first end 1211 of the concave sound wave energy absorption basin 121 is connected to the corresponding opening 112, and the second end 1212 of the concave sound wave energy absorption basin 121 extends toward the direction close to the cavity 111 and extends to the cavity 111, thereby realizing that the concave sound wave energy absorption basin 121 is installed in a corresponding opening 112.

[0044] It should be noted that, in this embodiment, the sound waves that can cause the concave sound wave energy absorption basin 121 to resonate are all ultra-low frequency standing waves.

[0045] The induction coil barrel 122 is a cylindrical structure made of a hard material, and in order to reduce its weight, the induction coil barrel 122 is a hollow barrel structure, for example, a hollow cylindrical structure. An induction coil with a certain number of turns is arranged around the barrel wall of the induction coil barrel 122. The number of turns of the induction coil can be selected according to actual use needs. For example, if the voltage required to generate electric energy is larger, then the number of turns can be more, and vice versa. The induction coil barrel 122 is connected to the second end 1212 of the concave sound wave energy absorption basin 121, wherein the connection can be achieved by, for example, pasting to achieve a fixed connection. In this embodiment, the induction coil barrel 122 is connected to the concave sound wave energy absorption basin 121 and forms a match, so the size of the induction coil barrel 122 should be adapted to the size of the concave sound wave energy absorption basin 121, but the specific size of the induction coil barrel 122 is not specifically limited in this embodiment, and it can meet the actual use needs.

[0046] The annular magnet 123 is an annular structure made of magnetic material. The edge of the annular magnet 123 can be connected to the cavity 111, but the present embodiment does not specifically limit the connection method between the annular magnet 123 and the cavity 111, and it is sufficient that the annular magnet 123 can be connected. The annular magnet 123 is sleeved on the induction coil cylinder 122, that is, the inner ring of the annular magnet 123 is sleeved on the induction coil cylinder 122. Further, in order to facilitate the movement of the induction coil on the induction coil cylinder 122 and to achieve the cutting of the magnetic flux lines generated by the annular magnet 123, the size of the inner ring of the annular magnet 123 can be slightly larger than the size of the induction coil cylinder 122, so that the inner ring of the annular magnet 123 is sleeved on the induction coil cylinder 122 but does not form contact with the induction coil cylinder 122.

[0047] Further, in the sound wave energy absorption unit 120 of the present embodiment, when the concave sound wave energy absorption basin 121 is concave and absorbs low-frequency sound waves with a frequency lower than the preset frequency in the sound, for example, the plot of the movie shown in the home theater has a bomb explosion, so the bomb explosion sound in the movie plot will produce low-frequency sound waves lower than the preset frequency. The energy of the low-frequency sound wave can make the concave sound wave energy absorption basin 121 resonate with the same frequency as the low-frequency sound wave. For example, the resonance of the concave sound wave energy absorption basin 121 makes the concave sound wave energy absorption basin 121 reciprocate at the same frequency as the low-frequency sound wave. Due to the connection between the induction coil cylinder 122 and the concave sound wave energy absorption basin 121, the induction coil cylinder 122 is also driven by the concave sound wave energy absorption basin 121 to reciprocate with the same frequency resonance. That is to say, at this time, the energy of the low-frequency sound wave is converted into kinetic energy by the reciprocating motion of the concave sound wave energy absorption basin 121 and the induction coil cylinder 122. Furthermore, the induction coil tube 122 uses the reciprocating motion brought about by the kinetic energy generated by the resonance to cause the induction coil to cut the magnetic flux lines generated by the annular magnet 123. The reciprocating motion cuts the magnetic flux lines generated by the annular magnet 123, and generates AC electric energy corresponding to the resonance frequency in the induction coil, so that the induction coil of the induction coil tube 122 outputs the electric energy.

[0048] See also Figures 1 to 4, the number of prompt output units 130 may be N, and the N prompt output units 130 are connected to N sound wave energy absorption units 120 among the M sound wave energy absorption units 120, and N is a positive integer not greater than M. That is to say, when N is equal to M, each sound wave energy absorption unit 120 can be connected to a corresponding prompt output unit 130, and each sound wave energy absorption unit 120 can output electric energy to a prompt output unit 130 of the pair. However, when N is less than M, MN sound wave energy absorption units 120 among the M sound wave energy absorption units 120 cannot be connected to a corresponding prompt output unit 130. Then, for the MN sound wave energy absorption units 120, the MN sound wave energy absorption units 120 completely convert the energy of the low-frequency sound waves into kinetic energy and then release it, which also realizes the absorption of low-frequency sound wave energy.

[0049] Specifically, for the N prompt output units 130, the installation principle and working principle of each sound wave energy absorption unit 120 in the N prompt output units 130 are basically the same. For the convenience of clear description and the understanding of the present solution by those skilled in the art, this embodiment takes any one of the N prompt output units 130 as an example to provide a specific description of the structure and principle of the prompt output unit 130.

[0050] The prompt output unit 130 includes a rectifying and boosting subunit 131 and a prompting subunit 132. The rectifying and boosting subunit 131 is connected to a corresponding sound wave energy absorbing unit 120 among the N sound wave energy absorbing units 120, and the prompting subunit 132 is connected to the rectifying and boosting subunit 131.

[0051] In this embodiment, the rectifying and boosting subunit 131 is used to rectify the electric energy obtained from the corresponding acoustic wave energy absorbing unit 120 from AC to DC, and boost the DC to an adaptive electric energy whose voltage satisfies a preset voltage.

[0052] Specifically, the rectifying and boosting subunit 131 includes: a rectifying circuit 1311 and a boosting chip 1312. The rectifying circuit 1311 is connected to the corresponding sound wave energy absorbing unit 120; and the boosting chip 1312 is connected to the rectifying circuit 1311 and the prompting subunit 132 respectively.

[0053] The rectifier circuit 1311 may be a bridge-type full-wave rectifier circuit 1311 composed of four rectifier diodes. After the input end of the rectifier circuit 1311 is connected to the induction coil in the corresponding sound wave energy absorption unit 120, the rectifier circuit 1311 can obtain the AC power output by the sound wave energy absorption unit 120 when it resonates. The rectifier circuit 1311 rectifies the power from AC to DC power through four rectifier diodes, and then the input end of the rectifier circuit 1311 outputs the DC power to the boost chip 1312.

[0054] The boost chip 1312 can be a DC-DC type boost chip. When the input end of the boost chip 1312 obtains the DC power from the rectifier circuit 1311, the boost chip 1312 boosts the DC power to an adaptive power whose voltage meets the preset voltage. For example, if the prompt output unit 130 requires a voltage of 5V to work, the boost chip 1312 can boost the DC power to an adaptive power of 5V of the preset voltage. The output end of the boost chip 1312 is connected to the prompt sub-unit 132, and the adaptive power is output to the prompt sub-unit 132.

[0055] As a method, the prompt subunit 132 includes: at least one light emitting diode connected in series and / or in parallel, and the at least one light emitting diode connected in series and / or in parallel is arranged on the housing 110. For example, the prompt subunit 132 is composed of 4 light emitting diodes connected in parallel. When the prompt subunit 132 obtains the adapted electric energy, the prompt subunit 132 obtains power according to the adapted electric energy, and then outputs the prompt information in the form of lighting up to prompt the user that the low-frequency sound wave energy is converted into electric energy for absorption. And it should be understood that each time the sound system generates a low-frequency sound wave, the prompt subunit 132 emits light for a period of time accordingly. For example, when playing a movie, by emitting light at a rhythm corresponding to the rhythm of the low-frequency sound wave, it will bring a kind of atmosphere experience to the user, further improving the user experience.

[0056] As another way, the prompt subunit 132 includes: at least one display screen connected in series and / or in parallel, and the at least one display screen connected in series and / or in parallel can be set on the box 110, for example, the prompt subunit 132 is composed of two display screens connected in parallel. When the prompt subunit 132 obtains the adaptive power, the prompt subunit 132 obtains power according to the adaptive power, and then outputs the prompt information in the form of lighting up the screen to prompt the user that the low-frequency sound wave energy is converted into electrical energy for absorption. And it should be understood that every time the sound system generates a low-frequency sound wave, the prompt subunit 132 lights up the screen for a period of time accordingly. For example, when playing a movie, by being lit up at a rhythm corresponding to the rhythm of the low-frequency sound wave, it will also bring a kind of atmosphere experience to the user, and further improve the user experience.

[0057] In addition, in this embodiment, in order to improve the luminous or lighting effect of the prompt subunit 132 and thus improve the user experience, the prompt output unit 130 further includes: an energy storage subunit 133, which is connected to the rectification and boost subunit 131 and the prompt subunit 132 respectively.

[0058] Further, the electric energy storage subunit 133 can be a supercapacitor, and the capacity of the supercapacitor can be selected according to actual use requirements. For example, if more electric energy is generated, the capacity of the supercapacitor is correspondingly larger, otherwise, it is smaller. One end of the supercapacitor is connected to the rectifier boost subunit 131 and the prompt subunit 132 respectively, and the other end of the supercapacitor is grounded. Then when the rectifier boost subunit 131 outputs the adapted electric energy, the prompt subunit 132 can not only provide a prompt for emitting light or lighting, but the supercapacitor will also charge and store energy. Then when the adapted electric energy output of the rectifier boost subunit 131 is completed, the supercapacitor discharges and releases energy again, so that the prompt subunit 132 can continue to provide a prompt for emitting light or lighting. And as the amount of charge released by the supercapacitor gradually decreases, the prompt subunit 132 is also gradually changed from emitting light or lighting to extinguishing. Therefore, the energy storage subunit 133 can not only extend the luminescence or lighting duration of the prompt subunit 132, but also make the luminescence or lighting of the prompt subunit 132 gradual, so that the prompt subunit 132 produces a breathing effect, further improving the user experience.

[0059] Further, such as Figure 5 As shown in FIG. 1 , in actual application, if the sound wave energy absorbing device 100 is not set in a small space, the attenuation curve of the low-frequency sound wave measured is as follows: Figure 5 As shown by the solid line in . If a sound wave energy absorption device 100 of a certain size is set in a small space, the low-frequency sound wave absorption is measured. The size of the small space can be 4000mm*3000mm*3300mm. After testing, it can be measured that after the sound wave energy absorption device 100 is set, the attenuation curve of the low-frequency sound wave is as follows Figure 5 As shown by the dotted line in the figure, after 250 milliseconds, the low-frequency sound waves generated in the small space are obviously attenuated by 14DB.

[0060] In summary, an embodiment of the present application provides a sound wave energy absorption device, comprising: a box body, the box body having a cavity, and M openings are opened on the surface of the box body, where M is a positive integer. M sound wave energy absorption units are correspondingly arranged on the M openings. N prompt output units are correspondingly connected to N sound wave energy absorption units among the M sound wave energy absorption units, where N is a positive integer not greater than M. Among them, when the sound wave energy absorption device is arranged in an environment where an audio system is located, when the audio system is outputting sound, each of the M sound wave energy absorption units is used to generate resonance after absorbing low-frequency sound waves with a frequency lower than a preset frequency in the sound, and convert the kinetic energy generated by the resonance into electrical energy; each of the N prompt output units is used to obtain power from the corresponding sound wave energy absorption unit among the N sound wave energy absorption units, and then output prompt information.

[0061] The ultra-low frequency standing wave energy of low frequency sound waves in the sound with a frequency lower than the preset frequency is converted into kinetic energy or electrical energy through the resonance of M sound wave energy absorption units, thereby achieving the absorption of ultra-low frequency standing wave energy to avoid harm to the human body, and also clearly informing the user in a prompting manner that the ultra-low frequency standing wave energy is absorbed, thereby improving the user experience. In addition, by absorbing low frequency standing wave energy through energy conversion rather than absorbing materials, the volume of the sound wave energy absorption device can be greatly reduced, and the sound wave energy absorption device can be conveniently used in various small spaces, making the application prospect of the sound wave energy absorption device extremely broad.

[0062] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0063] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A sound wave energy absorption device, characterized in that: include: A box body, wherein the box body has a cavity, and a surface of the box body is provided with M openings, where M is a positive integer; M sound wave energy absorbing units are correspondingly arranged on the M openings; N prompt output units are connected to N sound wave energy absorption units among the M sound wave energy absorption units, where N is a positive integer not greater than M; Wherein, the sound wave energy absorption device is arranged in an environment where an audio system is located. When the audio system is outputting sound, each of the M sound wave energy absorption units is used to generate resonance after absorbing low-frequency sound waves in the sound whose frequency is lower than a preset frequency, and convert the kinetic energy generated by the resonance into electrical energy; each of the N prompt output units is used to obtain power from the corresponding sound wave energy absorption unit in the N sound wave energy absorption units, and then output prompt information; The environment in which the sound system is located is a small space that generates standing waves with a frequency band less than 125 Hz; A concave sound wave energy absorption basin, comprising a first end and a second end, wherein the first end is sleeved and embedded in an opening corresponding to the M openings, and the second end extends into the cavity; an induction coil cylinder connected to the second end; and an annular magnet connected to the cavity and sleeved on the induction coil cylinder; wherein the concave sound wave energy absorption basin is used to absorb low-frequency sound waves with a frequency lower than a preset frequency in the sound and drive the induction coil cylinder to generate resonance; the induction coil cylinder is used to cut the magnetic flux lines generated by the annular magnet according to the kinetic energy generated by the resonance, and convert the kinetic energy generated by the resonance into electrical energy; The concave sound wave energy absorption basin also has a counterweight, and the counterweight is used to adjust the preset frequency of the resonance of the concave sound wave energy absorption basin, and the frequency range of the resonance is 20Hz to 150Hz.

2. The acoustic wave energy absorbing device according to claim 1, characterized in that: The first end is connected to the corresponding one of the M openings through an elastic material and is sleeved by the corresponding one of the M openings.

3. The acoustic wave energy absorbing device according to claim 1, characterized in that: Each prompt output unit includes: A rectifier and boost subunit connected to a corresponding acoustic wave energy absorbing unit among the N acoustic wave energy absorbing units; a prompting subunit, connected to the rectifying and boosting subunit; Among them, the rectification and boosting subunit is used to rectify the electric energy obtained from the corresponding sound wave energy absorption unit from AC to DC power, and boost the DC power to an adaptive power whose voltage meets the preset voltage; the prompt subunit is used to obtain power supply according to the adaptive power, and then output prompt information.

4. The acoustic wave energy absorbing device according to claim 3, characterized in that: The prompt subunit includes: at least one light emitting diode connected in series and / or in parallel.

5. The sound wave energy absorbing device according to claim 3, characterized in that: The prompt subunit includes: at least one display screen connected in series and / or in parallel.

6. The acoustic wave energy absorbing device according to any one of claims 4 or 5, characterized in that: The rectifying and boosting subunit comprises: A rectifier circuit connected to the corresponding sound wave energy absorbing unit; A boost chip, connected to the rectifier circuit and the prompt sub-unit respectively; Among them, the rectifier circuit is used to rectify the electric energy output by the corresponding sound wave energy absorption unit from AC to DC; the boost chip is used to boost the DC electric energy to an adaptive electric energy whose voltage meets the preset voltage.

7. The acoustic wave energy absorbing device according to claim 6, characterized in that: The rectifier circuit is a bridge-type full-wave rectifier circuit, and the boost chip is a DC-DC boost chip.

8. The acoustic wave energy absorbing device according to claim 7, characterized in that: Each of the N prompt output units further includes: The electric energy storage subunit is connected to the rectification and boosting subunit and the prompting subunit respectively.

9. The acoustic wave energy absorbing device according to claim 8, characterized in that: The electric energy storage subunit is a super capacitor, one end of the super capacitor is connected to the rectification and boost subunit and the prompt subunit respectively, and the other end of the super capacitor is grounded.

Images