CN201491240U - Loudspeaker device - Google Patents
Loudspeaker device Download PDFInfo
- Publication number
- CN201491240U CN201491240U CN2009201697671U CN200920169767U CN201491240U CN 201491240 U CN201491240 U CN 201491240U CN 2009201697671 U CN2009201697671 U CN 2009201697671U CN 200920169767 U CN200920169767 U CN 200920169767U CN 201491240 U CN201491240 U CN 201491240U
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- Prior art keywords
- external
- power amplifier
- boombox
- loudspeaker
- speaker
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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.)
- Expired - Lifetime
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- 230000005236 sound signal Effects 0.000 claims abstract description 13
- 230000002457 bidirectional effect Effects 0.000 claims description 10
- 230000000295 complement effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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Abstract
The utility model provides a loudspeaker, include: the device comprises an internal power amplifier, an internal loudspeaker, an external power amplifier and an external loudspeaker, wherein the internal power amplifier is electrically connected with the internal loudspeaker and amplifies an input audio signal and outputs the amplified audio signal to the internal loudspeaker; the external power amplifier is electrically connected with the external loudspeaker through an external earphone jack, and the external power amplifier amplifies the audio signal and outputs the amplified audio signal to the external loudspeaker through the external earphone jack; the loudspeaker device further comprises a switching circuit, and the switching circuit is electrically connected with the built-in power amplifier and the external power amplifier respectively and used for controlling the switching of the built-in loudspeaker and the external loudspeaker. The utility model overcomes mobilizable multimedia playback equipment is from built-in speaker of taking among the prior art is owing to receive the restriction in its volume and space, and general power is less, can not satisfy the problem of user's demand.
Description
Technical field
The utility model relates to the multimedia field, in particular to a kind of loudspeaker arrangement.
Background technology
At present, movably multimedia play equipment is because its portable, fashion, advantage such as powerful are widely used for some, and the common volume of existing movably multimedia play equipment is less, adopts the boombox that carries to carry out the broadcast of audio frequency.
In realizing the utility model process, the inventor finds in the prior art boombox that multimedia play equipment movably carries owing to be subjected to the restriction in its volume and space, and general power is less, can not satisfy user's demand.
The utility model content
The utility model aims to provide a kind of loudspeaker arrangement, can solve in the prior art boombox that multimedia play equipment movably carries owing to be subjected to the restriction in its volume and space, and general power is less, can not satisfy the problem of user's demand.
In embodiment of the present utility model, a kind of loudspeaker arrangement is provided, comprise: built-in power amplifier, boombox, external power amplifier and external speaker, wherein, built-in power amplifier is electrically connected with boombox, outputs to boombox after its audio signal with input is amplified; External power amplifier is electrically connected by external earphone jack with external speaker, and external power amplifier amplifies the back with audio signal and outputs to external speaker by external earphone jack; Loudspeaker arrangement also comprises commutation circuit, and commutation circuit is electrically connected with built-in power amplifier and external power amplifier respectively, is used to control the switching of boombox and external speaker.
Preferably, external speaker comprises the external headset plug that is complementary with external earphone jack.
Preferably, commutation circuit is a switch switching circuit, and this circuit includes bidirectional switch, and the bidirectional switch input links to each other with power supply, and its output links to each other with boombox or external speaker electricity alternatively.
Preferably, commutation circuit is the triode commutation circuit, and this circuit includes triode, and its base stage of triode links to each other with external earphone jack and external power amplifier, and its collector electrode links to each other with power supply and built-in power amplifier, its grounded emitter.
Preferably, external speaker power is greater than the power of boombox.
In the above-described embodiments, by selectively inserting the volume that external speaker improves multimedia player, using bidirectional switch or triode to make simultaneously can switch between boombox and external speaker easily, thereby overcome in the prior art boombox that multimedia play equipment movably carries owing to be subjected to the restriction in its volume and space, general power is less, can not satisfy the problem of user's demand, thereby reach the bigger effect of removable multimedia player sound.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, constitutes the application's a part, and illustrative examples of the present utility model and explanation thereof are used to explain the utility model, do not constitute improper qualification of the present utility model.In the accompanying drawings:
Fig. 1 shows the loudspeaker arrangement block diagram according to an embodiment of the utility model;
Fig. 2 shows the loudspeaker arrangement schematic diagram according to an embodiment of the utility model;
Fig. 3 shows according to the external earphone jack circuit diagram of the loudspeaker arrangement of an embodiment of the utility model;
Fig. 4 shows the loudspeaker arrangement circuit diagram according to an embodiment of the utility model;
Fig. 5 shows the loudspeaker arrangement circuit diagram according to another embodiment of the utility model.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the utility model in detail.
Fig. 1 shows the loudspeaker arrangement according to an embodiment of the utility model, comprise: built-in power amplifier 10, boombox 20, external power amplifier 30 and external speaker 40, wherein, built-in power amplifier 10 is electrically connected 20 with boombox, outputs to boombox 20 after its audio signal with input is amplified; External power amplifier 30 is electrically connected by external earphone jack with external speaker 40, and external power amplifier 30 amplifies the back with audio signal and outputs to external speaker 40 by external earphone jack; Loudspeaker arrangement also comprises commutation circuit 50, is electrically connected with built-in power amplifier 10 and external power amplifier 30 respectively, is used to control the switching of boombox 20 and external speaker 40.
In the present embodiment, by selectively inserting the volume that external speaker improves multimedia player, thereby overcome in the prior art boombox that multimedia play equipment movably carries owing to be subjected to the restriction in its volume and space, general power is less, can not satisfy the problem of user's demand.
Preferably, external speaker comprises the external headset plug that is complementary with external earphone jack.External speaker can be inserted multimedia play system by external headset plug.
Preferably, commutation circuit is a switch switching circuit, and this circuit includes bidirectional switch, and the bidirectional switch input links to each other with power supply, and its output links to each other with boombox or external speaker electricity alternatively.When the user need be switched, can fetch realization by linking to each other of bidirectional switch with boombox or external speaker between boombox and external speaker.
Preferably, commutation circuit is the triode commutation circuit, and this circuit includes triode, and its base stage of triode links to each other with external earphone jack and external power amplifier, and its collector electrode links to each other with power supply and built-in power amplifier, its grounded emitter.Whether external headset plug inserts and makes base stage and the emitter conducting or the not conducting of triode, thereby switches the operating state of boombox and external speaker.
Fig. 2 shows the loudspeaker arrangement schematic diagram according to an embodiment of the utility model, as shown in Figure 2, loudspeaker arrangement in the present embodiment comprises player 1 and external speaker 2, player 1 has boombox, when the earphone jack of external speaker 2 is inserted the external earphone jack of player 1, system detects external speaker 2, then closes the power amplifier that drives boombox immediately, opens the power amplifier that drives external speaker simultaneously.When taking out the headset plug of external speaker, system detects external speaker 2 and takes out, and then closes the power amplifier that drives external speaker, opens the power amplifier that drives boombox simultaneously.Can be implemented in the switching between boombox and the loud speaker 2 like this.
Fig. 3 shows according to the external earphone jack circuit diagram of the loudspeaker arrangement of an embodiment of the utility model, external speaker is electrically connected with external power amplifier by the pin 2,3,4,5 and 6 of external earphone jack, receive the audio signal of amplifying, to realize operate as normal.
Fig. 4 shows the loudspeaker arrangement circuit diagram according to an embodiment of the utility model, as shown in Figure 4, A+ and A-are the two-way audio signal of output, present embodiment is provided with two loud speakers, the boombox of smaller power be SP2's and more powerful external speaker SP1, wherein SP1 is connected (selectively being connected with system) by earphone jack with system, SP2 directly is the boombox of system, directly in the back level amplifying circuit of connecting system, A1, A2 is an audio power amplifier, native system can be realized the output switching circuit of loud speaker SP1 and loud speaker SP2 by bidirectional switch S1, when S1 connects R1, power amplifier A1 work, loud speaker SP1 work; When S1 connects R2, power amplifier A2 work, loud speaker SP2 starts working.
Fig. 5 shows the loudspeaker arrangement circuit diagram according to another embodiment of the utility model, as shown in Figure 5, A+ and A-are the two-way audio signal of controller output, A1, A2 is an audio power amplifier, the control port that No. 1 pin of A1 and A2 is a power amplifier, when No. 1 port is high level, the selected work of its corresponding power amplifier, when the loud speaker SP1 of band headset plug is not connected with earphone jack, the ground level of triode Q1 and not conducting of emitting stage, then the control port 1 of power amplifier A2 is a high level, power amplifier A2 work, and drive corresponding SP2 speaker operation; When the loud speaker SP1 of band headset plug is connected with earphone jack K1,12 pins of power amplifier A1 become high level, make ground level and the emitting stage conducting of Q1, then the control port 1 of power amplifier A2 is a low level, power amplifier A1 work, and drive loud speaker SP1 work, thereby reach the effect of switching loud speaker.
From above description, as can be seen, the utility model the above embodiments have realized following technique effect: selectively insert external speaker as required, improve the volume of multimedia player, using bidirectional switch or triode to make simultaneously can switch between boombox and external speaker easily, thereby overcome in the prior art boombox that multimedia play equipment movably carries owing to be subjected to the restriction in its volume and space, general power is less, can not satisfy the problem of user's demand.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (5)
1. loudspeaker arrangement comprises: built-in power amplifier, boombox, external power amplifier and external speaker, wherein
Described built-in power amplifier is electrically connected with described boombox, outputs to described boombox after its audio signal with input is amplified;
Described external power amplifier is electrically connected by external earphone jack with described external speaker, and described external power amplifier amplifies the back with described audio signal and outputs to described external speaker by described external earphone jack;
It is characterized in that described loudspeaker arrangement also comprises commutation circuit, described commutation circuit is electrically connected with described built-in power amplifier and described external power amplifier respectively, is used to control the switching of described boombox and described external speaker.
2. loudspeaker arrangement according to claim 1 is characterized in that, described external speaker comprises the external headset plug that is complementary with described external earphone jack.
3. loudspeaker arrangement according to claim 1, it is characterized in that described commutation circuit is a switch switching circuit, this circuit includes bidirectional switch, described bidirectional switch input links to each other with power supply, and its output links to each other with described boombox or described external speaker electricity alternatively.
4. loudspeaker arrangement according to claim 1, it is characterized in that, described commutation circuit is the triode commutation circuit, this circuit includes triode, its base stage of described triode links to each other with described external earphone jack and external power amplifier, its collector electrode links to each other with power supply and described built-in power amplifier, its grounded emitter.
5. according to each described loudspeaker arrangement of claim 1 to 4, it is characterized in that described external speaker power is greater than the power of described boombox.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201697671U CN201491240U (en) | 2009-08-25 | 2009-08-25 | Loudspeaker device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201697671U CN201491240U (en) | 2009-08-25 | 2009-08-25 | Loudspeaker device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201491240U true CN201491240U (en) | 2010-05-26 |
Family
ID=42430104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201697671U Expired - Lifetime CN201491240U (en) | 2009-08-25 | 2009-08-25 | Loudspeaker device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201491240U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102984616A (en) * | 2012-11-21 | 2013-03-20 | 徐世红 | Earphone capable of switching listening modes quickly |
| CN104348945A (en) * | 2013-08-02 | 2015-02-11 | 上海斐讯数据通信技术有限公司 | Audio power amplification device, mobile telephone and control method thereof |
| CN109521990A (en) * | 2018-11-20 | 2019-03-26 | 厦门美图移动科技有限公司 | Audio playing control method and device, electronic equipment and readable storage medium |
| CN109788113A (en) * | 2017-11-13 | 2019-05-21 | 北京小米移动软件有限公司 | Play the method and device of voice messaging |
| CN110267165A (en) * | 2019-05-27 | 2019-09-20 | 努比亚技术有限公司 | Audio signal output control method, device, equipment and readable storage medium storing program for executing |
| CN113613109A (en) * | 2021-08-31 | 2021-11-05 | 安徽井利电子有限公司 | Multi-loudspeaker circulating playing sound box |
-
2009
- 2009-08-25 CN CN2009201697671U patent/CN201491240U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102984616A (en) * | 2012-11-21 | 2013-03-20 | 徐世红 | Earphone capable of switching listening modes quickly |
| CN104348945A (en) * | 2013-08-02 | 2015-02-11 | 上海斐讯数据通信技术有限公司 | Audio power amplification device, mobile telephone and control method thereof |
| CN104348945B (en) * | 2013-08-02 | 2018-09-28 | 上海斐讯数据通信技术有限公司 | Audio power amplifier device, mobile phone and control method |
| CN109788113A (en) * | 2017-11-13 | 2019-05-21 | 北京小米移动软件有限公司 | Play the method and device of voice messaging |
| CN109521990A (en) * | 2018-11-20 | 2019-03-26 | 厦门美图移动科技有限公司 | Audio playing control method and device, electronic equipment and readable storage medium |
| CN109521990B (en) * | 2018-11-20 | 2022-06-21 | 深圳市吉美文化科技有限公司 | Audio playing control method and device, electronic equipment and readable storage medium |
| CN110267165A (en) * | 2019-05-27 | 2019-09-20 | 努比亚技术有限公司 | Audio signal output control method, device, equipment and readable storage medium storing program for executing |
| CN113613109A (en) * | 2021-08-31 | 2021-11-05 | 安徽井利电子有限公司 | Multi-loudspeaker circulating playing sound box |
| CN113613109B (en) * | 2021-08-31 | 2023-05-12 | 安徽井利电子有限公司 | Multi-loudspeaker circulation playing sound equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100526 |