CN204119456U - Back of the body radiation long paraphase chamber Hi-Fi sound-box - Google Patents
Back of the body radiation long paraphase chamber Hi-Fi sound-box Download PDFInfo
- Publication number
- CN204119456U CN204119456U CN201420187360.2U CN201420187360U CN204119456U CN 204119456 U CN204119456 U CN 204119456U CN 201420187360 U CN201420187360 U CN 201420187360U CN 204119456 U CN204119456 U CN 204119456U
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- sound
- loud speaker
- box
- audio amplifier
- long
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Abstract
A kind of back of the body radiation Hi-Fi sound-box.It oppositely installs woofer on audio amplifier front panel, diaphragm of loudspeaker convex surface (back side) is made to become primary radiation face, the sound wave sent like this is divergent shape, the chiasma interference avoiding acoustic wave beam produces the distortion harmonics that is discord, on the other hand, the sound wave that diaphragm of loudspeaker concave surface produces enters the long paraphase chamber cavity that audio amplifier inside has sound absorption function, most of distortion harmonics is fallen in this cavity attenuation by absorption, reduce the sound that distortion harmonics sends, this audio amplifier is reached eliminate the false and retain the true the object of high-fidelity reduction primary sound.The beneficial effects of the utility model are, without the need to dropping into technological transformation greatly to main components loud speaker, just utilize the loud speaker that prior art is produced, only need keep two loud speaker phase places on the contrary when being electrically connected, technological improvement cost is low, and manufacturing process is simple, and structure is simple.
Description
Technical field
The utility model relates to a kind of audio amplifier.
Background technology
As everyone knows, existing audio amplifier without exception all use the concave surface of conical diaphragm as primary radiation face, i.e. diaphragm of loudspeaker concave surface forward directed radiation sound wave, this transmission sound wave mode is similar to the parabolic concentrator effect of spotlight, and the focusing of sound wave causes the intersection of sound wave, and the cross radiance of sound wave creates the strong resonant acoustic wave of many non-origins, former tone color is destroyed serious, and there is no effective measures to eliminate the homophonic dye of discord, and make the distortion of primary sound serious, cannot high-fidelity reduction primary sound.(Fig. 1).
Summary of the invention
In order to overcome the serious deficiency of existing audio amplifier basso distortion, the utility model provides a kind of audio amplifier, and this audio amplifier can not only high-fidelity reduction bass primary sound, can also eliminate the distortion harmonics because sound wave cross radiance produces.The utility model solves the technical scheme that its technical problem adopts: on audio amplifier front panel, oppositely install woofer, diaphragm of loudspeaker convex surface (back side) is made to become primary radiation face, the sound wave sent like this is divergent shape, avoid the chiasma interference of acoustic wave beam, thus avoid generation to be discord distortion harmonics, thus reach the object of high-fidelity reduction primary sound; On the other hand, the sound wave that loud speaker concave surface produces enters the long paraphase chamber cavity that audio amplifier inside has sound absorption function, most of distortion harmonics is fallen in this cavity attenuation by absorption, greatly reduces the sound that distortion harmonics sends, and this audio amplifier is reached eliminate the false and retain the true the object of high-fidelity reduction primary sound.The beneficial effects of the utility model are, can high-fidelity reduction primary sound, again without the need to dropping into technological transformation greatly to main components loud speaker, just utilize the loud speaker that prior art is produced, only need keep two loud speaker phase places on the contrary when being electrically connected, technology and structure are also simple.4,
accompanying drawing explanation
Fig. 1 identifies
woofer;
the diaphragm of loudspeaker;
acoustic irradiation direction;
sound wave chiasma interference
Fig. 1 is prior art speaker of voice box acoustic irradiation schematic diagram, and when vibrating diaphragm concave surface is as primary radiation face (previous irradiation), the chiasma interference of sound wave produces distortion harmonics
Fig. 2 identifies
woofer;
the diaphragm of loudspeaker;
acoustic irradiation direction
Fig. 2 is the utility model technology speaker of voice box acoustic irradiation schematic diagram, and when vibrating diaphragm convex surface is as primary radiation face (back of the body radiation), sound wave is divergent shape, avoids chiasma interference
Fig. 3 identifies
high pitch loudspeaker
audio amplifier front panel
woofer
paraphase mouth
paraphase chamber
audio amplifier backplate
Fig. 3 is the overall side sectional view of the utility model back of the body radiation long paraphase chamber Hi-Fi sound-box
5, embodiment:
In figure 3, woofer
can adopt existing conical diaphragm loud speaker, installation direction is contrary with conventional direction, and namely the loud speaker back side is forward as primary radiation face; Audio amplifier front panel
staged indentation can be done in woofer installation place, and its degree of depth does not affect speaker system dustproof cover installation with bass unit loud speaker magnet steel position and is as the criterion; Audio amplifier paraphase chamber
should be designed to tortuous long-channel, cavity inner wall sticks sound-absorbing material; High pitch loudspeaker
should be convex vibrating membrane loudspeaker (current production technology can produce this loud speaker in enormous quantities), this loud speaker is arranged on audio amplifier front panel with conventional direction
upper end; In order to the consistency of acoustic phase, the loud speaker electrical connection polarity of two unit should be contrary.
Claims (4)
1. carry on the back a radiation long paraphase chamber Hi-Fi sound-box, sound box, paraphase chamber, high and low frequency loud speaker is electrically connected, and it is characterized in that: low frequency cell loud speaker is installed in the other direction on audio amplifier front panel.
2. the long paraphase chamber of back of the body radiation according to claim 1 Hi-Fi sound-box, is characterized in that: staged indentation is done in audio amplifier front panel woofer installation place, and its degree of depth does not affect speaker system dustproof cover installation with bass unit loud speaker magnet steel position and is as the criterion.
3. the long paraphase chamber of back of the body radiation according to claim 1 Hi-Fi sound-box, is characterized in that: should there be enough length in paraphase chamber, and cavity wall pastes sound-absorbing material.
4. the long paraphase chamber of back of the body radiation according to claim 1 Hi-Fi sound-box, is characterized in that: in order to the consistency on acoustic phase, and the loud speaker electrical connection polarity of two unit is contrary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420187360.2U CN204119456U (en) | 2014-04-18 | 2014-04-18 | Back of the body radiation long paraphase chamber Hi-Fi sound-box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420187360.2U CN204119456U (en) | 2014-04-18 | 2014-04-18 | Back of the body radiation long paraphase chamber Hi-Fi sound-box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204119456U true CN204119456U (en) | 2015-01-21 |
Family
ID=52336731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420187360.2U Expired - Fee Related CN204119456U (en) | 2014-04-18 | 2014-04-18 | Back of the body radiation long paraphase chamber Hi-Fi sound-box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204119456U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113784243A (en) * | 2021-08-31 | 2021-12-10 | 歌尔光学科技有限公司 | Loudspeaker module and head-mounted device |
-
2014
- 2014-04-18 CN CN201420187360.2U patent/CN204119456U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113784243A (en) * | 2021-08-31 | 2021-12-10 | 歌尔光学科技有限公司 | Loudspeaker module and head-mounted device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20160418 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |