CN103220605A

CN103220605A - Vibrating type horn

Info

Publication number: CN103220605A
Application number: CN2012100195227A
Authority: CN
Inventors: 廖麒城
Original assignee: Sound Cheers Ltd Virgin Islands
Current assignee: Sound Cheers Ltd Virgin Islands
Priority date: 2012-01-20
Filing date: 2012-01-20
Publication date: 2013-07-24

Abstract

The invention discloses a vibrating type horn which is composed of a hollow cover body, a base and at least one piezoelectric element which is arranged on the base, wherein the inner side of the hollow cover body is concave from outside to inside to form a cavity, and the hollow cover body is arranged on the base in a combined mode. The cavity of the hollow cover body and the base form a resonant cavity, wherein the piezoelectric element is located inside the resonant cavity, and a vibrating end of the piezoelectric element is arranged on the top of the piezoelectric element. When an alternating power supply is connected to the piezoelectric element to generate vibration, the top of the piezoelectric element will make contact with the cavity of the hollow cover body above the piezoelectric element to resonate upwards, and sound pressure is generated by the hollow cover body to drive the ambient air to make a sound.

Description

Vibrating type horn

Technical field

The present invention is about a kind of vibrating type horn, especially a kind ofly agitates the sound vibrating type horn structure of frequency of surrounding air by the vibration cover body.

Background technology

Traditional loudspeaker are based on moving-coil type, and the moving-coil type loudspeaker are to move in high-intensity magnetic field by passing through electric current in the coil to drive the sounding film vibrate air and sounding, but the moving-coil type loudspeaker are owing to the leakage field that is subject to field circuit, so that the moving-coil type loudspeaker can't satisfy the slimming product;

Because the demand of audio-video playing function on electronic product grows with each passing day at present, for example mobile phone, notebook computer etc. all need " miniaturization " sounding component to be arranged on the portable electronic product, therefore have enough thinnesses in order to the piezoelectric type loudspeaker that are built in the electronic product, can be applied on the portable electronic product of " miniaturization " sounding component;

But because the limitation of piezoelectric type loudspeaker characteristic, must be put on the plane, and vibrate on this plane and can sound by the piezoelectric type loudspeaker, therefore the wave volume of its generation is extremely limited, the scope of being sounded also has very big restricted, and simultaneously because be vibration downwards and sounding, therefore the sound that the is sent plane that will therefore be placed stops, the efficient that makes it possible to sounding will be lowered, and the quality of sound also can be influenced by this;

Though the piezoelectric type loudspeaker have enough thinnesses and can be placed in the portable electronic product in addition, but do not directly apply on the circumscribed loudspeaker at present, because the piezoelectric type loudspeaker have simple structure, efficient height, extremely weak electric current, can produce the great characteristic of vibrating, therefore if can be on general circumscribed loudspeaker with the structure applications of piezoelectric type loudspeaker, and can upwards vibrate outwards to sound, so should be a best solution.

Summary of the invention

The present invention promptly is to provide a kind of vibrating type horn, can upwards vibrate cover body and send the vibrating type horn of the sound by cover body generation sound press outwards to agitate surrounding air for a kind of.

Can reach the vibrating type horn of foregoing invention purpose, formed by the piezoelectric element on a hollow cover body, a base and at least one the storing base, wherein this hollow cover body ecto-entad spill becomes a cavity, and this hollow cover body is incorporated on this base, and form a resonant cavity by the cavity and the base of this hollow cover body, this piezoelectric element is positioned at this resonant cavity, and the vibration end of this piezoelectric element is located at the top.When AC power inserted this piezoelectric element vibration takes place, the top of this piezoelectric element can contact to produce resonance with the surface of the cavity of the hollow cover body of top, makes this hollow cover body generation sound press send the sound to agitate surrounding air.

Preferably, have at least one control panel on the external side surface of described hollow cover or push control part, in order to the broadcast of control sound or the switch of vibrating type horn.

Preferably, described hollow cover body is a blowing housing.

Preferably, described hollow cover body is the made cover body of a glass material.

Preferably, have at least one control panel on the described chassis outer side surface or push control part, in order to the broadcast of control sound or the switch of vibrating type horn.

Be provided with an oscillating circuit in this base, this oscillating circuit is connected with this piezoelectric element, this oscillating circuit is converted to driving signal with voice signal, and the driving signal that is produced imported in this piezoelectric element, so that the hollow cover body that this piezoelectric element contacted can send sound frequency that should driving signal.

Preferably, have more a storage element in the described base, can the stored voice signal in this storage element.

Preferably, vibrating type horn more can connect a source of sound input unit, and this source of sound input unit can import voice signal into this vibrating type horn to be play or import in this storage element, to carry out sound playing; This source of sound input unit can connect an electronic installation with voice signal in addition, so that the stored voice signal of electronic installation can pass through this source of sound input unit, import voice signal into this vibrating type horn and play or import in this storage element, to carry out sound playing.

Preferably, have a USB slot on the described base, and this source of sound input unit can be connected by this USB slot with this base.

A kind of vibrating type horn provided by the present invention when comparing mutually with other prior aries, has more and gets the row advantage ready:

1. the present invention can upwards vibrate cover body and be produced sound press and outwards agitated surrounding air to send the sound by cover body, therefore can be by cover body generation sound playing in a big way, owing to be that piezoelectric element upwards produces vibration, therefore can not cause situation to take place simultaneously because of base plane vibration loss phonation efficiency.

2. therefore the present invention need not use ferromagnetic material owing to be to use the vibration of piezoelectric element to come sounding, so can not produce suctions such as iron sand, need not use no coil method in addition, so also can not produce electromagnetic interference and electromagnetic radiation yet.

The present invention have that harmonic distortion is low, tonequality is splendid, simple structure, efficient height, extremely weak electric current, can produce great vibration simultaneously, therefore the sensitivity of loudspeaker of the present invention is high, the ability that extraneous signal is accepted is also stronger simultaneously.

Description of drawings

Fig. 1 is the stereogram of vibrating type horn of the present invention;

Fig. 2 is the profile of vibrating type horn of the present invention;

Fig. 3 is the internal vibration sounding schematic diagram of vibrating type horn of the present invention;

Fig. 4 A is the application implementation illustration of vibrating type horn of the present invention;

Fig. 4 B is the application implementation illustration of vibrating type horn of the present invention; And

Fig. 5 plays schematic diagram for the Application Example of vibrating type horn of the present invention.

[main element symbol description]

1 vibrating type horn, 11 hollow cover bodies, 111 cavitys

12 bases, 13 piezoelectric elements, 14 resonant cavities

15 USB slot 16s are pushed control part 17 control panels

2 source of sound input units, 3 electronic installations, 4 electronic installations.

Embodiment

Relevant for aforementioned and other technology contents, characteristics and effect of the present invention, in the detailed description of following cooperation preferred embodiment with reference to the accompanying drawings, can clearly present.

See also Fig. 1 and Fig. 2, stereogram and profile for a kind of vibrating type horn of the present invention, by among the figure as can be known, this vibrating type horn 1 is made up of the piezoelectric element 13 on a hollow cover body 11, a base 12 and at least one the storing base 12, wherein these hollow cover body 11 ecto-entad spills become a cavity 111, and this hollow cover body 11 is incorporated on this base 12, so the cavity 111 of this hollow cover body 11 can form a resonant cavity 14 with base 12;

In addition, because this piezoelectric element 13 is put on the base 12, and be connected with the oscillating circuit (not shown) of these base 12 inside, and the top of this piezoelectric element 13 can contact with the wall of the cavity 111 of the hollow cover body 11 of top, therefore this piezoelectric element 13 is positioned at this resonant cavity 14, so when AC power inserts in the piezoelectric element 13, the meeting driving signal that corresponding oscillating circuit produced makes this piezoelectric element 13 produce vibration, and the vibration end of this piezoelectric element 13 is located at the top, therefore more as can be known obvious among Fig. 3, piezoelectric element 13 tops that vibration takes place can contact with the wall of the cavity 111 of the hollow cover body 11 of top, and the cavity 111 inner surfaces generation resonance of drive hollow cover body 11, so that hollow cover body 11 can produce sound press and agitate surrounding air to send the sound.

In addition, shown in Fig. 4 A and Fig. 4 B, this vibrating type horn 1 more can connect a source of sound input unit 2 by a USB slot 15, and this source of sound input unit 2 can connect the portable electronic products such as electronic installation 3(iphone with voice signal), therefore these electronic installation 3 stored voice signals can pass through this source of sound input unit 2, after importing voice signal into this vibrating type horn 1, can be again voice signal be converted to driving signal by the oscillating circuit of base 12 inside, and the driving signal that is produced imported in this piezoelectric element 13, so that the hollow cover body 11 that this piezoelectric element 11 is contacted can send sound frequency that should driving signal, its enforcement illustration of playing electronic installation 4 as shown in Figure 5.

In addition, except directly playing by connection source of sound input unit 2, have more a storage element (not shown) in this base 12, wherein can the stored voice signal in this storage element, therefore also voice signal can be stored in the storage element by USB slot 15, therefore do not need to connect source of sound input unit 2, also can play-over stored voice signal in the storage element.

In addition, at least one be can be provided with on this vibrating type horn 1 outer surface and control part 16 or control panel 17 pushed, and execution mode has many set-up modes, the present invention only proposes only a kind of enforcement structure in this, as among Fig. 1 as can be known, has the control part of pushing 16 on these hollow cover body 11 outer surfaces, open and close in order to control vibrating type horn 1, and has a control panel 17 on these base 12 outer surfaces, and this control panel 17 can be controlled the actions such as beginning, time-out of music to make things convenient for the user in order to the action of control music.

By the above detailed description of preferred embodiments, hope can be known description feature of the present invention and spirit more, and is not to come category of the present invention is limited with above-mentioned disclosed preferred embodiment.On the contrary, its objective is that hope can contain in the claimed scope of being alternatively to of various changes and tool equivalence institute of the present invention desire.

Claims

1. vibrating type horn, its feature comprises: by a hollow cover body, a base and the piezoelectric element that at least one is put on the base are formed, wherein this hollow cover body ecto-entad spill becomes a cavity, and this hollow cover body is incorporated on this base, and form a resonant cavity by cavity and this base of this hollow cover body, this piezoelectric element is positioned at this resonant cavity, the vibration end of this piezoelectric element is located at the top, when AC power inserts this piezoelectric element generation vibration, the top of this piezoelectric element contacts with the wall of the cavity of this hollow cover body and upwards produces resonance, makes this hollow cover body can produce sound press and agitates surrounding air to send the sound.

2. vibrating type horn according to claim 1 is characterized in that: have at least one on the external side surface of this hollow cover as switch or in order to the control panel of control sound playing or push control part.

3. vibrating type horn according to claim 1, it is characterized in that: this hollow cover body is a blowing housing.

4. vibrating type horn according to claim 1, it is characterized in that: this hollow cover body is a glass cover body.

5. vibrating type horn according to claim 1 is characterized in that: have at least one on this chassis outer side surface as switch or in order to the control panel of control sound playing or push control part.

6. vibrating type horn according to claim 1, it is characterized in that: be provided with an oscillating circuit in this base, this oscillating circuit is connected with this piezoelectric element, this oscillating circuit is converted to driving signal with voice signal, and the driving signal that is produced imported in this piezoelectric element, so that the hollow cover body that this piezoelectric element contacted can send sound frequency that should driving signal.

7. vibrating type horn according to claim 1 is characterized in that: have more a storage element in this base, and can the stored voice signal in this storage element.

8. as vibrating type horn as described in the claim 7, it is characterized in that: other comprises a source of sound input unit, voice signal can be imported into this vibrating type horn by this source of sound input unit and play or import in this storage element.

9. as vibrating type horn as described in the claim 7, it is characterized in that: this source of sound input unit connects the electronic installation with voice signal, and the stored voice signal of this electronic installation can import this vibrating type horn into by this source of sound input unit to be play or import in this storage element.

10. as vibrating type horn as described in the claim 7, it is characterized in that: have a USB slot on this base, and this source of sound input unit is connected with this base by this USB slot.