CN204425604U - Passive and active one audio amplifier - Google Patents
Passive and active one audio amplifier Download PDFInfo
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- CN204425604U CN204425604U CN201420868091.6U CN201420868091U CN204425604U CN 204425604 U CN204425604 U CN 204425604U CN 201420868091 U CN201420868091 U CN 201420868091U CN 204425604 U CN204425604 U CN 204425604U
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- passive
- audio amplifier
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- cavity
- housing
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Abstract
The utility model discloses a kind of passive and active one audio amplifier, comprise the housing with cavity, in described cavity, be provided with the loudspeaker unit with cone and support, between described bracket edge and described housing, be provided with the passive radiator closed by described cavity.The beneficial effects of the utility model: closed by the cavity in housing by passive radiator, realize active resonance and passive resonance simultaneously, and take full advantage of limited space, volume is little, low frequency signal wide ranges.
Description
Technical field
The utility model relates to a kind of audio amplifier.
Background technology
Along with the high speed development of science and technology, audio amplifier is as the terminal of whole sound system, and its effect is that audio frequency electric energy is converted to corresponding acoustic energy, and it is radiated space.Audio amplifier is the extremely important part of sound system, the signal of telecommunication is transformed into acoustical signal directly listens to this mission critical because which is responsible for the ear of people.In prior art, built-in speaker LF-response is poor; simultaneously people in order to make, the expansion low-frequency range of audio amplifier is wider, the sense of low frequency amount is better; usual meeting adds some miscellaneous parts in the sound box bodies with bass Low frequency horn; as passive radiator or guide pipe etc.; after adding these components thing followed problem be the casing of audio amplifier must do larger; audio amplifier just can be made can not to produce the problem such as echo and noise; but some particular places cannot install the audio amplifier of large volume, therefore be badly in need of the audio amplifier that a kind of volume is little, expansion low-frequency range is wide.
Utility model content
The technical problems to be solved in the utility model is to provide the audio amplifier that a kind of volume is little, low frequency expands wide ranges.
Technical solution of the present utility model is: a kind of passive and active one audio amplifier, comprise the housing with cavity, be provided with the loudspeaker unit with cone and support in described cavity, between described bracket edge and described housing, be provided with the passive radiator closed by described cavity.
The passive radiator closed by cavity is set between loudspeaker unit and housing, make the inner chamber of this housing airtight, audio signal drives voice coil loudspeaker voice coil and cone motion through loudspeaker unit, thus the air in seal chamber is vibrated, the air push of vibration is in the passive radiator of loudspeaker unit bracket edge, thus the low frequency signal forming more wide region exports.Owing to using active resonance and passive resonance simultaneously, the power of loudspeaker unit can correspondingly promote, and when ensureing audio amplifier constancy of volume, further increases the low frequency signal scope of output.
Described passive radiator comprises vibrating diaphragm and is arranged on the ring at vibrating diaphragm edge, and ring is connected with the sidewall of described housing.Ring is directly fixedly connected with housing, and vibrating diaphragm is relatively unsettled, and vibration is not easily interfered.
The cross sectional shape of described vibrating diaphragm is circular arc or corrugated.Can accommodating more large-area vibrating diaphragm in limited space, effectively improve the tuning effect of passive radiation.
The taper reflecting plate of drift angle towards described loudspeaker unit opening is provided with at the opening part of described loudspeaker unit.By taper reflecting plate, resonance signal can be diffused to surrounding, improve the area coverage of sound field.
The beneficial effects of the utility model: closed by the cavity in housing by passive radiator, realize active resonance and passive resonance simultaneously, and take full advantage of limited space, volume is little, low frequency signal wide ranges.
Accompanying drawing explanation
Fig. 1 the utility model cutaway view;
Description of reference numerals: 1-cavity, 2-housing, 3-loudspeaker unit, 31-cone, 32-support, 4-passive radiator, 41-vibrating diaphragm, 42-ring, 5-reflecting plate.
Embodiment
Embodiment:
Consult Fig. 1, a kind of passive and active one audio amplifier, comprise the housing 2 with cavity 1, the loudspeaker unit 3 with cone 31 and support 32 is provided with in cavity 1, the passive radiator 4 closed by cavity 1 is provided with between support 32 edge and housing 2, passive radiator 4 comprises vibrating diaphragm 41 and is arranged on the ring 42 at vibrating diaphragm 41 edge, and ring 42 is connected with the sidewall of housing 2.The cross sectional shape of vibrating diaphragm 41 is circular arc or corrugated.The taper reflecting plate 5 of drift angle towards loudspeaker unit 3 opening is provided with at the opening part of loudspeaker unit 3.
When loudspeaker unit 3 works, the resonance of voice coil loudspeaker voice coil and cone 31 promotes the airstream vibration in cavity 1, and the vibrating diaphragm 41 of air-flow meeting passive radiator 4 vibrates, thus second time resonance occurs, and produce the signal of more low frequency, low frequency width is corresponding to be expanded.The low frequency signal exported from loudspeaker unit 3 opening part is reflected by taper reflecting plate 5, can the wider region of radiation.
Above-listed detailed description is illustrating for the utility model possible embodiments, and this embodiment is also not used to limit the scope of the claims of the present utility model, does not allly depart from the equivalence that the utility model does and implements or change, and all should be contained in the scope of the claims of this case.
Claims (4)
1. a passive and active one audio amplifier, comprises the housing with cavity, is provided with the loudspeaker unit with cone and support, it is characterized in that in described cavity: between described bracket edge and described housing, be provided with the passive radiator closed by described cavity.
2. passive and active one audio amplifier according to claim 1, is characterized in that: described passive radiator comprises vibrating diaphragm and is arranged on the ring at vibrating diaphragm edge, and ring is connected with the sidewall of described housing.
3. passive and active one audio amplifier according to claim 1 and 2, it is characterized in that, the cross sectional shape of described vibrating diaphragm is circular arc or corrugated.
4. passive and active one audio amplifier according to claim 1, is characterized in that, be provided with the taper reflecting plate of drift angle towards described loudspeaker unit opening at the opening part of described loudspeaker unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420868091.6U CN204425604U (en) | 2014-12-30 | 2014-12-30 | Passive and active one audio amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420868091.6U CN204425604U (en) | 2014-12-30 | 2014-12-30 | Passive and active one audio amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204425604U true CN204425604U (en) | 2015-06-24 |
Family
ID=53475929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420868091.6U Active CN204425604U (en) | 2014-12-30 | 2014-12-30 | Passive and active one audio amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204425604U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108429990A (en) * | 2018-05-03 | 2018-08-21 | 四川斐讯信息技术有限公司 | A kind of intelligent sound box of toneable |
| CN108650582A (en) * | 2018-07-26 | 2018-10-12 | 广州酷狗计算机科技有限公司 | A kind of sound equipment |
| CN110475185A (en) * | 2019-08-13 | 2019-11-19 | 海能达通信股份有限公司 | Acoustic radiation component and audible device |
-
2014
- 2014-12-30 CN CN201420868091.6U patent/CN204425604U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108429990A (en) * | 2018-05-03 | 2018-08-21 | 四川斐讯信息技术有限公司 | A kind of intelligent sound box of toneable |
| CN108650582A (en) * | 2018-07-26 | 2018-10-12 | 广州酷狗计算机科技有限公司 | A kind of sound equipment |
| CN110475185A (en) * | 2019-08-13 | 2019-11-19 | 海能达通信股份有限公司 | Acoustic radiation component and audible device |
| CN110475185B (en) * | 2019-08-13 | 2021-05-25 | 海能达通信股份有限公司 | Acoustic radiation assembly and sound production device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |