CN201118906Y - Small portable T sound box - Google Patents
Small portable T sound box Download PDFInfo
- Publication number
- CN201118906Y CN201118906Y CNU2007201704657U CN200720170465U CN201118906Y CN 201118906 Y CN201118906 Y CN 201118906Y CN U2007201704657 U CNU2007201704657 U CN U2007201704657U CN 200720170465 U CN200720170465 U CN 200720170465U CN 201118906 Y CN201118906 Y CN 201118906Y
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- CN
- China
- Prior art keywords
- stereo plug
- sound
- sound box
- stereo
- earphone
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- 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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- 238000004519 manufacturing process Methods 0.000 abstract 1
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- 102100031653 Peptidyl-prolyl cis-trans isomerase NIMA-interacting 4 Human genes 0.000 description 1
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Abstract
The utility model relates to a mini-type portable T-shaped sound box, which comprises a box body of the sound box and an earphone stereo plug which is tightly connected with the box body. The box body of the sound box presents seal type column shape, and the earphone stereo plug is arranged fixedly on the middle part of the box body of the sound box, moreover, the earphone stereo plug is directly connected with the audio frequency amplifier of the sound source; the earphone stereo plug comprises an earth terminal of the stereo plug, the left soundtrack opening of the stereo plug and the right soundtrack opening of the stereo plug, the audio frequency from the sound source is sent to the left and the right horns respectively through the stereo plug and reduced into a stereo sound signal. The mini-type portable T shaped sound box can be compatible with a variety of MP3 music output matching and connecting of portable mobile phone products and the manufacture is easy to implement, the mini-type portable T-shaped sound box has the advantages of small volume, convenient carrying, flexible operation, low cost, and easy industrialization.
Description
Technical field
The present invention relates to be used for the audio amplifier equipment of voice playing, particularly a kind of small-sized T type audio amplifier that is applicable to the music earphone end in all portable products.
Background technology
A hundred flowers blossom for audio amplifier style on the market at present, A hundred birds contend in singing, but all be the audio amplifier that designs for the larger volume product a bit, and the MP3 music of portable product is as MP3 music on the mobile phone, all be to utilize the built-in loudspeaker of mobile phone itself to play, make so original itself preferably music be subjected to the restriction of loudspeaker casing, the tonequality of music is had a greatly reduced quality in addition, the composition of a lot of low frequencies just can't be play at all, HFS is ear-piercing, the form that adds MP3 outward is a lossy compression method, and the music drying that causes the user to hear is single, muddy a slice.
And the MP3 music is traveled in modern people's life, forms main body in the leisure.Go to listen to the music and the puzzlement of loaded down with trivial details transmission line is arranged with better earphone, brought very big inconvenience to travelling.Going to listen to the music with bluetooth earphone is subjected to disturb to produce outside the noise easily, and heavy earphone hangs over that human body is difficult to bear on the ear all day.
The utility model content
In order better effectively to overcome the reason of above-mentioned deficiency, the purpose of this utility model provides a kind of extra small portable loudspeaker box, inserts to get convenient, flexiblely, does not account for volume; Come low frequency is compensated for improving the tonequality deficiency simultaneously, make the characteristic curve of audio frequency perfect, smooth more; And it directly is connected the audio frequency amplifier output, has avoided loaded down with trivial details audio transmission lead and need not expensive bluetooth support.
The technical solution adopted in the utility model is as follows: a kind of small portable T type audio amplifier, the earphone stereo plug that comprises sound box and be close to it, described sound box is that sealed type is cylindrical, described earphone stereo plug is fixedly arranged on the middle part of described sound box, and, described earphone stereo plug directly is connected with the audio frequency amplifier output of sound source, described earphone stereo plug comprises stereo plug earth terminal (6), stereo plug L channel mouth (7), with stereo plug R channel mouth (8), audio frequency from sound source is delivered to left and right sides loudspeaker (4) and (5) respectively through stereo plug (10) end points (7) and (8), restores the stereo sound signal.
Described sound box middle part is provided with fills sound-absorbing material (2) and left and right sides loudspeaker audio frequency barrier plate (3).
The circuit of described small portable T type audio amplifier comprises audio signal input coupling capacitance and amplitude limit resistance, amplifier and general stereophone socket.
Described general stereophone socket comprises the common ground end of R sound channel contact and L sound channel contact and RL sound channel, and described R sound channel contact with outside stereo plug symmetry respectively with L sound channel contact and is connected.
Described sound box is the subwoofer casing.
After the music that plays out from products such as mobile phones was amplified to output socket, through stereo plug end points (7), (8) delivered to left and right sides loudspeaker (4) respectively, and (5), wherein (6) are the common ground end, restore the stereo sound signal.Casing (1) is pressed on stereo plug (10), and the loudspeaker volume is owing to be portable casing, optionally is advisable below 3 centimetres, certainly, can adjust its size according to demand.
Beneficial effect of the present invention is: 1, and the connecing of the MP3 music of compatible various Portable mobile phone products output.2, to make simplely, volume is little, and is easy to carry, uses flexibly, with low cost, easily industrialization.3, because no transmission line insertion loss, power output is utilized fully, and 4, sound box adopts the closed design of column type, and its advantage is that the low frequency dynamics is good, is swift in response, low frequency is clear effectively.
The utility model is widely used, and the use field is the music earphone end in all portable products: as mobile phone MP3, and PMP MP3, recreation MP3, special-purpose MP3, MP4, CD player or the like.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model circuit diagram.
Among the figure, 1, sealed type sound box, 2, fill sound-absorbing material, 3, left and right sides loudspeaker audio frequency barrier plate, 4, left horn, 5, right horn, 10, the earphone stereo plug, 6, the stereo plug earth terminal, 7, stereo plug L channel mouth, 8, stereo plug R channel mouth, 11, the R sound channel contact of general stereophone socket, 12, the L sound channel contact of general stereophone socket; 13, the common ground end of the RL sound channel of general stereophone socket.
Specific embodiment
Further specify the present invention below in conjunction with drawings and Examples:
A kind of small portable T type audio amplifier as depicted in figs. 1 and 2, the earphone stereo plug (10) that comprises sound box (1) and be close to it, described sound box (1) is that sealed type is cylindrical, described earphone stereo plug (10) is fixedly arranged on the middle part of described sound box (1), and, described earphone stereo plug (10) directly is connected with the audio frequency amplifier output of sound source, described earphone stereo plug (10) comprises stereo plug earth terminal (6), stereo plug L channel mouth (7), with stereo plug R channel mouth (8), audio frequency from sound source is delivered to left and right sides loudspeaker (4) and (5) respectively through end points (7) and (8) of stereo plug (10), restores the stereo sound signal.
Described sound box (1) middle part is provided with fills sound-absorbing material (2) and left and right sides loudspeaker audio frequency barrier plate (3).
The circuit of described small portable T type audio amplifier comprises audio signal input coupling capacitance and amplitude limit resistance, amplifier and general stereophone socket.
Described general stereophone socket comprises the common ground end of R sound channel contact and L sound channel contact and RL sound channel, and described R sound channel contact with outside stereo plug symmetry respectively with L sound channel contact and is connected.
Described sound box can be the subwoofer casing, good with the low frequency dynamics that guarantees music, be swift in response, low frequency is clear strong.
After the music that plays out from products such as mobile phones was amplified to output socket, through stereo plug end points (7), (8) delivered to left and right sides loudspeaker (4) respectively, and (5), wherein (6) are the common ground end, restore the stereo sound signal.Casing (1) is pressed on stereo plug (10), and the loudspeaker volume is owing to be portable casing, optionally is advisable below 3 centimetres, certainly, can adjust its size according to demand.
As shown in Figure 2, C1, C2, R3, R5 are R, L audio signal input coupling capacitance and amplitude limit resistance, cause the damage of amplifier in case strong excessively signal is imported, PIN2 PIN6 is the input pin of amplifier IC1, and PN5 PIN6 is the reference voltage 2.5V of amplifier, R1, R2 are the divider resistance of reference voltage, R4, C4, R6, C7 are feedback circuit, to improve the tonequality of amplifier, PIN8 is the 3.3V power end of amplifier, and the PIN4 pin is the earth terminal of amplifier.C5, C6 are amplifier audio frequency output coupling capacitor, and J1 is general stereophone socket, and (11) of J1 are R sound channel contact, and (12) of J1 are L sound channel contact, and they with outside stereo plug symmetry respectively and are connected.(13) of J1 are the common ground end of RL sound channel.
Claims (5)
1, a kind of small portable T type audio amplifier, the earphone stereo plug that comprises sound box and be close to it, it is characterized in that: described sound box is that sealed type is cylindrical, described earphone stereo plug is fixedly arranged on the middle part of described sound box, and, described earphone stereo plug directly is connected with the audio frequency amplifier output of sound source, described earphone stereo plug comprises stereo plug earth terminal (6), stereo plug L channel mouth (7), with stereo plug R channel mouth (8), audio frequency from sound source is delivered to left and right sides loudspeaker (4) and (5) respectively through stereo plug (10) end points (7) and (8), restores the stereo sound signal.
2, small portable T type audio amplifier according to claim 1 is characterized in that: described sound box middle part is provided with fills sound-absorbing material (2) and left and right sides loudspeaker audio frequency barrier plate (3).
3, small portable T type audio amplifier according to claim 1 and 2 is characterized in that: the circuit of described small portable T type audio amplifier comprises audio signal input coupling capacitance and amplitude limit resistance, amplifier and general stereophone socket.
4, small portable T type audio amplifier according to claim 3, it is characterized in that: described general stereophone socket comprises the common ground end of R sound channel contact and L sound channel contact and RL sound channel, and described R sound channel contact with outside stereo plug symmetry respectively with L sound channel contact and is connected.
5, a kind of small portable T type audio amplifier according to claim 1 and 2, it is characterized in that: described sound box is the subwoofer casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201704657U CN201118906Y (en) | 2007-11-02 | 2007-11-02 | Small portable T sound box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201704657U CN201118906Y (en) | 2007-11-02 | 2007-11-02 | Small portable T sound box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201118906Y true CN201118906Y (en) | 2008-09-17 |
Family
ID=39993507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201704657U Expired - Fee Related CN201118906Y (en) | 2007-11-02 | 2007-11-02 | Small portable T sound box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201118906Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106257934A (en) * | 2015-06-18 | 2016-12-28 | 张百良 | Single-chamber type stereo speaker built-in medium-high frequency isolator |
-
2007
- 2007-11-02 CN CNU2007201704657U patent/CN201118906Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106257934A (en) * | 2015-06-18 | 2016-12-28 | 张百良 | Single-chamber type stereo speaker built-in medium-high frequency isolator |
| CN106257934B (en) * | 2015-06-18 | 2017-12-05 | 张百良 | Medium-high frequency isolator built in single-chamber type stereo speaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080917 Termination date: 20091202 |