TWI463881B - Vibrating horn - Google Patents

Description

Vibrating horn

The present invention relates to a vibrating horn, and more particularly to a vibrating horn capable of vibrating a hood, and the oscillating hood agitates the surrounding air to emit a sound frequency.

The traditional horn is mainly a moving coil type, while the moving horn is made by a magnetic force generated by a coil in a strong magnetic field to drive the sound film to vibrate the air, but the moving coil horn is limited by the magnetic flux leakage of the magnetic field loop. Dynamic horns are not suitable for thin products; as the current demand for audio and video playback is increasing in electronic products, such as mobile phones and notebook computers, "small" sound components are required to be placed on portable electronic products. A piezoelectric horn that is sufficiently thin to be built into electronic products will be able to be applied to portable electronic products that require "small-sized" sounding components; however, due to the limitations of piezoelectric horn characteristics, it must be placed in one In the plane, the piezoelectric horn vibrates on the plane to emit sound, so the volume of the sound produced is extremely limited, the range of the emitted sound is also very restrictive, and the sound is emitted because it vibrates downward. The sound that is emitted will be blocked by the placed plane, so that the efficiency of the sound will be reduced, and the quality of the sound will be In addition, although the piezoelectric speaker has sufficient thinness to be accommodated in the portable electronic product, there is no way to directly apply it to the external speaker, but the piezoelectric speaker has a simple structure, high efficiency, and extremely weak. The current, which can produce great vibration characteristics, should be the best solution if the piezoelectric speaker structure can be applied to a general external speaker and can vibrate upwards to emit sound.

SUMMARY OF THE INVENTION The present invention is directed to a vibrating horn which is a vibrating horn capable of vibrating the hood upwardly and generating sound pressure from the hood and agitating the surrounding air outward to emit an audible sound.

The vibrating horn capable of achieving the above object of the present invention comprises a hollow cover, a base and at least one piezoelectric element disposed on the base, wherein the hollow cover has a cavity formed by an outwardly concave portion, and the cavity The hollow cover system is coupled to the base, and a cavity is formed by the cavity of the hollow cover and the base, so that the piezoelectric element is located in the resonant cavity, so when the AC power source is connected to the piezoelectric element to vibrate, The top of the piezoelectric element is further in contact with the cavity of the upper hollow cover to generate resonance, and the sound pressure is generated by the hollow cover and the surrounding air is made to sound.

More specifically, the outer surface of the hollow cover has at least one control panel or a pressing control portion for controlling the playing of the sound or the switching of the vibrating horn.

More specifically, the hollow cover system is a blow molded housing.

More specifically, the hollow cover system is made of a glass material.

More specifically, the outer surface of the base has at least one control panel or a pressing control portion for controlling the playing of the sound or the switching of the vibrating horn.

More specifically, the base further has a storage unit and an oscillating circuit, wherein the storage unit can store an audio signal, and the oscillating circuit can convert the sound signal into a push signal and generate the push signal. The piezoelectric element is input such that the hollow cover that the piezoelectric element contacts can emit a sound frequency corresponding to the push signal.

More specifically, the vibrating horn is further capable of connecting a sound source input device capable of transmitting an audio signal to the storage unit for sound playback; and the sound source input device is capable of connecting an electronic device having an audio signal Device to make the sound stored by the electronic device The signal can be transmitted to the storage unit through the audio input device for sound playback.

More specifically, the base has a USB slot, and the audio input device can be inserted into the USB slot of the base.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments.

1 and 2 are a perspective view and a cross-sectional view of a vibrating horn according to the present invention. The vibrating horn 1 is composed of a hollow cover 11, a base 12 and at least one mounting base 12. The piezoelectric element 13 is composed of a cavity 111, wherein the hollow cover 11 is recessed outwardly to form a cavity 111, and the hollow cover 11 is coupled to the base 12, so that the cavity and the base of the hollow cover 11 are The 12 series will form a resonant cavity 14; in addition, since the piezoelectric element 13 is placed on the base 12 and connected to an oscillating circuit (not shown) inside the base 12, the top of the piezoelectric element 13 The contact is made with the cavity 111 of the upper hollow cover 11, so that the piezoelectric element 13 is located in the resonant cavity 14, so when the AC power is connected to the piezoelectric element 13, it will be driven by the oscillation circuit. The signal causes the piezoelectric element 13 to vibrate, and the vibrating end of the piezoelectric element 13 is at the top. Therefore, it is more apparent in FIG. 3 that the top of the piezoelectric element 13 that vibrates and the cavity of the upper hollow cover 11 111 contacts, and drives the cavity 111 of the hollow cover 11 to generate a total The vibration is applied to enable the hollow cover 11 to generate sound pressure and to insulate the surrounding air to make a sound.

In addition, as shown in FIG. 4A and FIG. 4B, the vibrating horn 1 can be connected to a sound source input device 2 via a USB slot 15, and the sound source input device 2 can be connected to have a sound. The electronic device 3 of the audio signal (portable electronic product such as iphone), so that the audio signal stored by the electronic device 3 can pass through the sound source input device 2, and the sound signal can be transmitted to the vibrating speaker 1 The internal oscillation circuit converts the sound signal into a push signal, and inputs the generated push signal into the piezoelectric element 13 so that the hollow cover 11 contacted by the piezoelectric element 13 can emit a sound frequency corresponding to the push signal. An embodiment of the playback electronic device 4 is shown in FIG.

In addition, the base 12 further has a storage unit (not shown) in the base unit 12, wherein the storage unit can store the sound signal, so that the sound signal can also be borrowed. The USB slot 15 is stored in the storage unit, so that it is not necessary to connect the sound source input device 2, and the sound signal stored in the storage unit can be directly played.

In addition, the outer surface of the vibrating horn 1 can be provided with at least one pressing control unit 16 or the control panel 17, and the embodiment has many installation modes. The present invention only proposes only one implementation structure, as shown in FIG. The outer surface of the hollow cover 11 has a pressing control portion 16 for controlling the opening and closing of the vibrating horn 1. The outer surface of the base 12 has a control panel 17, and the control panel 17 can be used. In order to control the action of music playback, the user can control the start and pause of music playback.

The vibrating horn provided by the invention has the following advantages when compared with other conventional technologies:

1. The present invention is capable of vibrating the cover upward and generating sound pressure by the cover and agitating the surrounding air to emit an audible sound, thereby enabling a wide range of sound playback by the cover, and at the same time, since the piezoelectric element is generated upward Vibration, so there is no loss of sounding efficiency due to vibration of the bottom plane.

2. Since the present invention uses the vibration of the piezoelectric element to sound, it does not need to use a magnet material, so that no inhalation of iron sand or the like is required, and no coil-free material is required, so electromagnetic interference and electromagnetic radiation are not generated. .

3. The invention has low harmonic distortion, excellent sound quality, simple structure, high efficiency and extremely weak current, and can generate great vibration at the same time, so the horn of the invention has high sensitivity and the ability to receive external signals. Stronger.

The features and spirit of the present invention will be more apparent from the detailed description of the preferred embodiments. On the contrary, the intention is to cover various modifications and equivalents within the scope of the invention as claimed.

1‧‧‧vibrating horn

11‧‧‧ hollow cover

111‧‧‧ Cavity

12‧‧‧Base

13‧‧‧Piezoelectric components

14‧‧‧Resonance cavity

15‧‧‧USB slot

16‧‧‧Press Control Department

17‧‧‧Control panel

2‧‧‧Source input device

3‧‧‧Electronic devices

4‧‧‧Electronic devices

1 is a perspective view of a vibrating horn according to the present invention; FIG. 2 is a cross-sectional view of the vibrating horn of the present invention; FIG. 3 is a schematic diagram of internal vibration of the vibrating horn of the present invention; and FIG. 4A is an application example of the vibrating horn of the present invention; Figure 4B is a diagram showing an application embodiment of the vibrating horn of the present invention; and Figure 5 is a schematic view showing the playing of the vibrating horn of the present invention.

1. . . Vibrating horn

11. . . Hollow shell

12. . . Base

15. . . USB slot

16. . . Press control unit

17. . . control panel

Claims (9)

A vibrating horn is composed of a hollow cover body, a base and at least one piezoelectric element disposed on the base, wherein the hollow cover body is recessed outwardly to form a cavity, and the hollow cover system is coupled to a cavity is formed on the base and a cavity is formed by the cavity of the hollow cover, so that the piezoelectric element is located in the resonant cavity, so when the AC power source is connected to the piezoelectric element, the piezoelectric element The top portion is in contact with the cavity of the hollow cover body and resonates upwardly, so that the hollow cover body can generate sound pressure and agitate the surrounding air to make a sound. The vibrating horn according to claim 1, wherein the outer surface of the hollow cover has at least one control panel or a pressing control portion for controlling the playing of the sound or the switching of the vibrating horn. The vibrating horn according to claim 1, wherein the hollow hood system is a blow molded casing. The vibrating horn according to claim 1, wherein the hollow hood system is made of a glass material. The vibrating horn according to claim 1, wherein the outer surface of the base has at least one control panel or a pressing control portion for controlling the playing of the sound or the switching of the vibrating horn. The vibrating horn according to claim 1, wherein the base further has a storage unit and an oscillating circuit, wherein the storage unit is capable of storing an audio signal, and the oscillating circuit can convert the audio signal into a push signal. And inputting the generated driving signal into the piezoelectric element, so that the hollow cover contacted by the piezoelectric element can emit corresponding push The sound frequency of the signal. The vibrating horn according to claim 6 is capable of connecting a sound source input device, and the sound source input device can transmit an audio signal to the storage unit for sound playback. The vibrating horn according to claim 7, wherein the audio input device is capable of connecting an electronic device having an audio signal, so that the audio signal stored by the electronic device can transmit the audio signal through the audio input device. In the storage unit, the sound is played. The vibrating horn according to claim 7, wherein the base has a USB slot, and the audio input device can be inserted into the USB slot of the base.