CN203039866U - Novel sound box - Google Patents
Novel sound box Download PDFInfo
- Publication number
- CN203039866U CN203039866U CN 201320015838 CN201320015838U CN203039866U CN 203039866 U CN203039866 U CN 203039866U CN 201320015838 CN201320015838 CN 201320015838 CN 201320015838 U CN201320015838 U CN 201320015838U CN 203039866 U CN203039866 U CN 203039866U
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- CN
- China
- Prior art keywords
- sound
- acoustical generator
- loud speaker
- audio amplifier
- loudspeaker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model relates to a novel sound box. The sound box comprises a box body, a loudspeaker, and a sounder, wherein the loudspeaker is arranged in the box body and connected with a frequency dividing circuit, and vibrates and produces sound under the function of an electrical signal, and the sounder is arranged at one side of the box body, and since the intensity of air pressure in the box body changes after the loudspeaker vibrates and produces sound, the loudspeaker vibrates and produces sound. When the loudspeaker vibrates and produces sound under the effect of the electrical signal, sound production is active, and when the sounder vibrates and produces sound since the intensity of air pressure in the box body changes, sound production is passive, active sound production and passive sound production are combined in the sound box to produce sound, the sound box is simple in structure and convenient to manufacture, can realize high-quality sound effect output, effectively expanding a lower limit of low frequency, and greatly improving listening effects.
Description
Technical field
The utility model relates to a kind of audio amplifier, specifically refers to a kind of novel audio amplifier.
Background technology
Audio amplifier is the terminal of whole sound system, and its effect is that the audio frequency electric energy is converted to corresponding acoustic energy, and it is radiated the space.It is the extremely important part of sound system, because it is being undertaken and the signal of telecommunication is transformed into acoustical signal is directly listening to so mission critical for people's ear, it is wanted directly and people's the sense of hearing is come into contacts with, and people's the sense of hearing is very sensitive, and the tone color of complex sound is had very strong resolving ability.Because people's ear is estimated the most important standard of a sound system tonequality quality just to the subjective feeling of sound, therefore, can think that the performance height of audio amplifier is to play key effect to the playing quality of a sound system.
In order to make audio amplifier reach more perfectly tonequality, the audio amplifier designer constantly improves to improve the tonequality of audio amplifier, for example adopts good power amplifier pronunciation unit, gold-plated stube cable etc.Yet though said method can produce better tone quality, cost but greatly increases, and the technology more complicated, influences the raising of production efficiency.Resonant cavity is set to improve tonequality in the inside of casing, because the space structure of audio amplifier is limited, and resonant cavity is narrow and small, tonequality can't effectively be improved, the acoustical quality that can not get again.
The utility model content
Technical problem to be solved in the utility model is to improve the acoustical quality of audio amplifier, and initiatively pronunciation is combined in sounding in the audio amplifier with passive pronunciation, makes loudspeaker box structure simple, easy to make, realize high-quality audio output, expanded low-frequency minimum, promoted auditory effect.
To achieve these goals, the utility model adopts following technical scheme:
A kind of novel audio amplifier comprises: a casing; One loud speaker is located in the described casing and is connected with frequency dividing circuit, and described loud speaker is vibration sounding under action of electric signals; One acoustical generator is located at described casing one side, and described acoustical generator is because behind the described loudspeaker vibration sounding, atmospheric pressure changes and vibration sounding in the described casing.
Further, be provided with a weight adjustment sheet in the described acoustical generator.
Further, the vibration frequency of described acoustical generator is low.
Further, be provided with specific range between described loud speaker and the described acoustical generator.
Further, be provided with cone in the described acoustical generator, described cone is because the variation vibration sounding of atmospheric pressure.
Further, described loud speaker and described acoustical generator are positioned at the same chamber of described casing.
Compared with prior art, described loud speaker of the present utility model vibration sounding under action of electric signals is initiatively pronunciation, described acoustical generator is because the interior atmospheric pressure variation of described casing vibration sounding is passive pronunciation, initiatively pronunciation is combined in sounding in the audio amplifier with passive pronunciation, simple in structure, easy to make, can realize high-quality audio output, expand low-frequency minimum effectively, promoted auditory effect greatly.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
See also Fig. 1, the utility model has disclosed a kind of novel audio amplifier 1, comprises casing 11, is located in the described casing 11 and a loud speaker 12 that is connected with frequency dividing circuit (not shown) and an acoustical generator 13 of being located at described casing 11 1 sides.
Described casing 11 can be wooden casing, and described casing 11 also can be plastic box.Described loud speaker 12 and described acoustical generator 13 are positioned at the same chamber of described casing 11.
Described loud speaker 12 vibration sounding under action of electric signals.When described loud speaker 12 is switched on, the AC audio electricity is by described loud speaker 12 and produced corresponding magnetic field, the magnetic field interaction that self produces on this magnetic field and the described loud speaker 12, interaction force between the magnetic field, make described loud speaker 12 in magnetic field along with tone currents vibrates, vibration has just produced the sound identical with former audio signal waveform.
Behind described loud speaker 12 vibration soundings, since the variation of atmospheric pressure in the described casing 11, described acoustical generator 13 vibration soundings.Be provided with cone (not shown) in the described acoustical generator 13, described cone (not shown) is because the variation vibration sounding of atmospheric pressure.The air in the described casing 11 has been oppressed in the vibration of described loud speaker 12, formation is to the flow effect of air, make the pressure in the described casing 11 that variation take place, and then cause the variation of the atmospheric pressure that other close on, just form the phenomenon of pressure change successively like this in the air, thereby made described cone (not shown) vibration sounding of described acoustical generator 13.
Described acoustical generator 13 is converted by loud speaker, and described acoustical generator 13 has been removed voice coil loudspeaker voice coil and magnet, and described acoustical generator 13 is not connected with circuit.Certainly, the utility model is not limited to this, and in other embodiments, described acoustical generator 13 also can be other device or be converted by other device, and described acoustical generator 13 possesses with atmospheric pressure and changes and the corresponding function of vibration sounding.
The applicant is by lot of experiments, and by controlling the weight of described acoustical generator 13, the vibration frequency of adjusting described acoustical generator 13 sounding reaches optimum state.In the present embodiment, be provided with a weight adjustment sheet (not shown) in the described acoustical generator 13, so that audio amplifier when work, it is best that the vibration frequency of described acoustical generator 13 sounding reaches.We know that the frequency range of sound is between 20Hz-20kHz, and expectation only uses a loud speaker just can guarantee that the sound of broadcasting the such broadband of 0Hz-20kHz is difficult to accomplish.In the present embodiment, the vibration frequency of described acoustical generator 13 is low, and the vibration sounding of described acoustical generator 13 is mainly reflected in the bigger bass part of Oscillation Amplitude, promotes low frequency signal, compensates with the ultralow frequency to described loud speaker 12.The applicant is by lot of experiments, by adjusting the space length between described loud speaker 12 and the described acoustical generator 13, so that the sound wave interference between described loud speaker 12 and the described acoustical generator 13 reaches minimum.In the present embodiment, be provided with specific range (not label) between described loud speaker 12 and the described acoustical generator 13, so that audio amplifier when work, the sound wave interference between described loud speaker 12 and the described acoustical generator 13 reaches minimum.
Described casing 11 1 sides of the present utility model are provided with described acoustical generator 13, behind described loud speaker 12 vibration soundings, since the variation of atmospheric pressure in the described casing 11, described acoustical generator 13 vibration soundings.Initiatively pronunciation is combined in sounding in the audio amplifier with passive pronunciation, and described acoustical generator 13 can carry out ultra-low frequency compensation to described loud speaker 12, makes frequency the bests of described acoustical generator 13 vibration soundings; By the described specific range (not label) that arranges between described loud speaker 12 and the described acoustical generator 13, when making audio amplifier work, it is minimum that the sound wave interference between described loud speaker 12 and the described acoustical generator 13 reaches.
Described loud speaker 12 of the present utility model vibration sounding under action of electric signals is initiatively pronunciation, described acoustical generator 13 is because described casing 11 interior atmospheric pressures variation vibration soundings are passive pronunciation, initiatively pronunciation is combined in sounding in the audio amplifier with passive pronunciation, simple in structure, easy to make, can realize high-quality audio output, expand low-frequency minimum effectively, promote auditory effect greatly.
Abovely in conjunction with most preferred embodiment the utility model is described, but the utility model is not limited to the embodiment of above announcement, and should contains various modification, equivalent combinations of carrying out according to essence of the present utility model.
Claims (6)
1. a novel audio amplifier is characterized in that, comprising:
One casing;
One loud speaker is located in the described casing and is connected with frequency dividing circuit, and described loud speaker is vibration sounding under action of electric signals;
One acoustical generator is located at described casing one side, and described acoustical generator is because behind the described loudspeaker vibration sounding, atmospheric pressure changes and vibration sounding in the described casing.
2. novel audio amplifier as claimed in claim 1 is characterized in that: be provided with a weight adjustment sheet in the described acoustical generator.
3. novel audio amplifier as claimed in claim 1, it is characterized in that: the vibration frequency of described acoustical generator is low.
4. novel audio amplifier as claimed in claim 1 is characterized in that: be provided with specific range between described loud speaker and the described acoustical generator.
5. novel audio amplifier as claimed in claim 1 is characterized in that: be provided with cone in the described acoustical generator, described cone is because the variation vibration sounding of atmospheric pressure.
6. novel audio amplifier as claimed in claim 1, it is characterized in that: described loud speaker and described acoustical generator are positioned at the same chamber of described casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320015838 CN203039866U (en) | 2013-01-10 | 2013-01-10 | Novel sound box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320015838 CN203039866U (en) | 2013-01-10 | 2013-01-10 | Novel sound box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203039866U true CN203039866U (en) | 2013-07-03 |
Family
ID=48691950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320015838 Expired - Fee Related CN203039866U (en) | 2013-01-10 | 2013-01-10 | Novel sound box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203039866U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105848042A (en) * | 2015-01-16 | 2016-08-10 | 宁波升亚电子有限公司 | Combined loudspeaker device and method thereof |
-
2013
- 2013-01-10 CN CN 201320015838 patent/CN203039866U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105848042A (en) * | 2015-01-16 | 2016-08-10 | 宁波升亚电子有限公司 | Combined loudspeaker device and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Guangzhou Full Band Sound System Engineering Co., Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Guangzhou Full Band Sound System Engineering Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20170110 |