CN217591065U - Sound directional propagation device, touch display screen and communication equipment - Google Patents
Sound directional propagation device, touch display screen and communication equipment Download PDFInfo
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- CN217591065U CN217591065U CN202221384164.5U CN202221384164U CN217591065U CN 217591065 U CN217591065 U CN 217591065U CN 202221384164 U CN202221384164 U CN 202221384164U CN 217591065 U CN217591065 U CN 217591065U
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Abstract
The utility model relates to a directional propagation device of sound, including magnet and vibrating diaphragm, around being equipped with the coil on the magnet, the vibrating diaphragm is nonmetal high frequency vibrating diaphragm, and the device input voltage signal is for integrating voltage signal, and integration voltage signal has low frequency signal and high frequency signal, and integration voltage signal is formed according to the Fourier transform by high frequency voltage signal and low frequency voltage signal. Be equipped with a plurality of bleeder vents on the nonmetal high frequency vibrating diaphragm, the bleeder vent can improve the gas permeability of nonmetal high frequency vibrating diaphragm, breaks when preventing the vibrating diaphragm vibration. The utility model discloses a sound that sound propagation device sent has directive property and directionality, and the sound of directional propagation has disguise and confidentiality, can not expose various information, prevents that user's privacy from leaking away, has improved the security that the device used, and in addition, this device reduces the noise of surrounding sound, makes the public place clean, brings very big convenience for the user, also prevents the irregular output of sound, avoids influencing other people.
Description
Technical Field
The utility model belongs to the technical field of the sound is propagated, concretely relates to sound directional propagation device, touch display screen and communications facilities.
Background
The sound transmission of a conventional sound generating device is performed by means of a speaker, and the basic principle is that current passes through a coil in a magnetic circuit composed of magnets, and driving force is generated in the up and down directions to vibrate a paper box diaphragm, so that air is vibrated to generate sound. The conventional external sound generating apparatus generates sound having diffusivity through a speaker, and has a structure and sound propagation directions as shown in fig. 1, and sound can be heard in each direction.
When a user uses consumer electronics products such as a mobile phone, the conversation contents can be heard by surrounding people, and the concealment and the confidentiality are not provided; when industrial control electronic products such as an externally-hung sound generating device are used in public places such as exhibition halls, squares and the like, large noise can be generated, other spatial regions are interfered, and directional propagation of sound cannot be realized.
SUMMERY OF THE UTILITY MODEL
For solving the above-mentioned problem that exists among the prior art, the utility model provides a device of directional propagation of sound, its purpose makes the sound that sends have directive property, and the sound of directional propagation has disguise and security, can not expose various information, reduces the noise of surrounding environment simultaneously, makes the public place clean.
In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a directional propagation device of sound, includes magnet and vibrating diaphragm, the winding is equipped with the coil on the magnet, the vibrating diaphragm is nonmetal high frequency vibrating diaphragm, and the device input voltage signal is for integrating voltage signal, it has low frequency signal and high frequency signal to integrate voltage signal, it is formed according to Fourier transform by high frequency voltage signal and low frequency voltage signal to integrate voltage signal.
Furthermore, the nonmetal high-frequency vibrating diaphragm is made of glass fiber, carbon fiber materials, hydrocarbon resin, PTFE (polytetrafluoroethylene) or polyphenyl ether.
Furthermore, be equipped with a plurality of bleeder vents on the nonmetal high-frequency vibrating diaphragm, the bleeder vent can improve the gas permeability of nonmetal high-frequency vibrating diaphragm, breaks when preventing the vibrating diaphragm vibration.
Further, the coil is wound outside the magnet in a circumferential shape.
The utility model provides a still provide a touch-control display screen of sound directional propagation, it includes aforementioned sound directional propagation device.
The utility model provides a still provide a communication equipment, it includes aforementioned sound directional propagation device.
The utility model discloses a theory of operation: after the high-frequency voltage signal and the low-frequency voltage signal are converted into an integrated voltage signal with a low-frequency sound signal and a high-frequency sound signal through Fourier transform, the integrated voltage signal is input into the sound generating device through the oscillating circuit, and the integrated voltage signal can pass through a coil in a magnetic circuit consisting of magnets, so that the nonmetal high-frequency vibrating diaphragm vibrates and is converted into a high-frequency sound signal and a low-frequency sound signal. The high-frequency sound signal is ultrasonic wave, the ultrasonic wave has directivity and directionality, and the low-frequency sound signal has the directivity and directionality after being loaded on the high-frequency sound signal, so that a person can hear the low-frequency sound signal with the directivity and directionality. In addition, a nonmetal high-frequency vibrating diaphragm is adopted to replace a traditional paper box vibrating diaphragm, the nonmetal high-frequency vibrating diaphragm is a nonmetal film capable of realizing high-frequency signal vibration, and the paper box vibrating diaphragm of the conventional loudspeaker can only receive signals of medium and low frequencies and cannot receive high-frequency signals; the metal film can receive high-frequency signals but can form attraction or repulsion with the magnet, and the vibration effect can be hindered or even can not be vibrated; the utility model discloses a nonmetal high frequency vibrating diaphragm both can receive low frequency, intermediate frequency, high frequency signal, can avoid again to take place to attract or the effect of repelling with magnet, has very high sensitivity to the signal of receiving the high frequency and makes it produce high frequency sound signal, accomplishes the loading of low frequency sound signal to high frequency sound signal.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a sound that sound propagation device sent has directive property and directionality, and the sound of directional propagation has disguise and security, can not expose various information, prevents that user's privacy from leaking away, has improved the security that the device used, and in addition, this device reduces the noise of surrounding sound, makes the public place clean and clean, brings very big convenience for the user, also prevents the irregular output of sound, avoids influencing other people.
Drawings
The following further explains the embodiments of the present invention with reference to the drawings.
Fig. 1 is a schematic view showing the structure and sound propagation direction of a conventional sound generating apparatus using a paper box diaphragm;
fig. 2 is a schematic view of the sound directional transmission device and the sound transmission direction of the present invention;
fig. 3 is a schematic structural view of a non-metal high-frequency vibrating diaphragm of the directional sound transmission device of the present invention;
fig. 4 is a schematic diagram of the high-frequency voltage signal and the low-frequency voltage signal of the sound directional transmission device according to the present invention;
fig. 5 is a schematic diagram of the integrated voltage signal of the sound directional propagation device of the present invention.
Detailed Description
With reference to fig. 2 and 3, the sound directional propagation device of the present embodiment includes a magnet 1 and a diaphragm, a coil 3 is wound on the magnet 1, the diaphragm is a non-metal high-frequency diaphragm 2, and with reference to fig. 4 and 5, the input voltage signal of the device is an integrated voltage signal, the integrated voltage signal has a low-frequency signal and a high-frequency signal, the integrated voltage signal is formed by converting the high-frequency voltage signal and the low-frequency voltage signal according to fourier transform, and the voltage signal has both high-frequency and low-frequency characteristics.
In this embodiment, the non-metal high-frequency diaphragm 2 is preferably made of glass fiber, carbon fiber material, hydrocarbon resin, PTFE (polytetrafluoroethylene), or polyphenylene oxide.
This embodiment is preferred, be equipped with a plurality of bleeder vents 4 on nonmetal high-frequency vibrating diaphragm 2, bleeder vent 4 can improve nonmetal high-frequency vibrating diaphragm 2's gas permeability, breaks when preventing the vibrating diaphragm vibration.
Preferably, the coil 3 is wound around the magnet 1 in a circumferential manner.
The present embodiment further provides a touch display screen with directionally propagating sound, which includes the above-mentioned directionally propagating sound device.
The present embodiment further provides a communication device, which includes the sound directional propagation device.
The sound directional propagation device of the present embodiment inputs a voltage signal as an integrated voltage signal having a low frequency signal and a high frequency signal, the integrated voltage signal is formed by converting the high frequency voltage signal and the low frequency voltage signal according to fourier transform, the voltage signal has both high frequency and low frequency characteristics, and is input to the sound generating device through the oscillation circuit, the integrated voltage signal vibrates the non-metal high frequency diaphragm through the coil in the magnetic circuit composed of the magnet, and is converted into a high frequency sound signal and a low frequency sound signal, the high frequency sound signal has directivity and directionality, and the low frequency sound signal has directivity and directionality after being applied to the high frequency sound signal, so that a person can hear the low frequency sound signal having directivity and directionality. Nonmetal high frequency vibrating diaphragm that this embodiment adopted both can receive low frequency, intermediate frequency, high frequency signal, can avoid again taking place the effect of attraction or repulsion with magnet, has very high sensitivity to receiving high frequency signal and makes it produce high frequency sound signal, accomplishes the loading of low frequency sound signal to high frequency sound signal.
In the previous description, numerous specific details were set forth in order to provide a thorough understanding of the invention. The foregoing description is only a preferred embodiment of the invention, which can be embodied in many different forms and is therefore not limited to the specific embodiments disclosed above. While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the technical solution of the present invention.
Claims (6)
1. A directional sound propagation device, characterized by: including magnet (1) and vibrating diaphragm, around being equipped with coil (3) on magnet (1), the vibrating diaphragm is nonmetal high frequency vibrating diaphragm (2), and the device input voltage signal is for integrating the voltage signal, it has low frequency signal and high frequency signal to integrate the voltage signal, it is formed according to Fourier transform by high frequency voltage signal and low frequency voltage signal to integrate the voltage signal.
2. The directional propagation device of sound according to claim 1, characterized in that: the nonmetal high-frequency vibrating diaphragm (2) is made of glass fiber, carbon fiber materials, hydrocarbon resin, PTFE or polyphenyl ether.
3. The directional propagation device of sound according to claim 1, characterized in that: and a plurality of air holes (4) are formed in the nonmetal high-frequency vibrating diaphragm (2).
4. The directional propagation device of sound according to claim 1, characterized in that: the coil (3) is wound outside the magnet (1) in a circumferential mode.
5. The utility model provides a touch-control display screen of sound directional propagation which characterized in that: comprising a sound directional propagation device as claimed in any one of claims 1-4.
6. A communication device, characterized by: comprising a sound directional propagation device as claimed in any one of claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221384164.5U CN217591065U (en) | 2022-06-06 | 2022-06-06 | Sound directional propagation device, touch display screen and communication equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221384164.5U CN217591065U (en) | 2022-06-06 | 2022-06-06 | Sound directional propagation device, touch display screen and communication equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217591065U true CN217591065U (en) | 2022-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221384164.5U Active CN217591065U (en) | 2022-06-06 | 2022-06-06 | Sound directional propagation device, touch display screen and communication equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217591065U (en) |
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2022
- 2022-06-06 CN CN202221384164.5U patent/CN217591065U/en active Active
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