CN205491017U - Earphone cascades ware - Google Patents
Earphone cascades ware Download PDFInfo
- Publication number
- CN205491017U CN205491017U CN201620021595.3U CN201620021595U CN205491017U CN 205491017 U CN205491017 U CN 205491017U CN 201620021595 U CN201620021595 U CN 201620021595U CN 205491017 U CN205491017 U CN 205491017U
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- CN
- China
- Prior art keywords
- earphone
- power amplifier
- earphone jack
- audio signal
- utility
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Abstract
The utility model discloses an earphone cascades ware, including the casing, the one end of casing is equipped with a headphone plug, and the other end of casing is equipped with a set of earphone jack, the casing is inside to be equipped with a power amplifier, and headphone plug inputs audio signal to power amplifier's input, and the audio signal after power amplifier will enlarge sends respectively for each earphone jack, an earphone all can be connected to every earphone jack to make people can share the audio frequency on the same equipment, can enlarge the audio signal of decay through power amplifier, guarantee the tone quality of output.
Description
Technical field
This utility model relates to Headphone accessory, specifically a kind of earphone cascade device.
Background technology
Known, the electronic equipment such as mobile phone, computer, PAD, MP4 all has audio interface, namely earphone jack, connects earphone by earphone jack and just can realize the output of audio frequency.But general all only one of which earphone jacks on these smart machines at present, so can be only inserted into an earphone for a personal use, the audio frequency making people share on same audio frequency apparatus of having no idea.
Utility model content
The purpose of this utility model is to provide a kind of earphone cascade device, and this cascade device can connect multiple earphone, makes many individuals share the audio frequency on same audio frequency apparatus.
This utility model solves its technical problem and be the technical scheme is that
A kind of earphone cascade device, including housing, one end of housing is provided with a headset plug, the other end of housing is provided with one group of earphone jack, described enclosure interior is provided with a power amplifier, the input of audio signal input to power amplifier, the audio signal after power amplifier will amplify are sent respectively to each earphone jack by headset plug.
As the deformation of technique scheme, the most expansible go out following technical scheme:
A kind of earphone cascade device, including housing, one end of housing is provided with a headset plug, the other end of housing is provided with one group of earphone jack, described enclosure interior is provided with one group of power amplifier, described power amplifier and earphone jack one_to_one corresponding, the input of audio signal input to each power amplifier, the audio signal after power amplifier will amplify are sent respectively to corresponding earphone jack by headset plug.
The beneficial effects of the utility model are, each earphone jack all can connect an earphone, so that people can share the audio frequency on same equipment, can be amplified the audio signal of decay by power amplifier, it is ensured that the tonequality of output.
Accompanying drawing explanation
With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings:
Fig. 1 is the structural representation of this utility model embodiment one；
Fig. 2 is the audio signal flow direction figure in this utility model embodiment one；
Fig. 3 is the structural representation of this utility model embodiment two；
Fig. 4 is the audio signal flow direction figure in this utility model embodiment two.
Detailed description of the invention
Embodiment one
As shown in Figure 1, this utility model provides a kind of earphone cascade device, including housing 1, one end of housing 1 is provided with a headset plug 2, the other end of housing 1 is provided with one group of earphone jack, the present embodiment illustrates as a example by two earphone jacks, i.e. first earphone jack 3a and the second earphone jack 3b, described housing 1 is internal is provided with a power amplifier 4, the input of audio signal input to power amplifier 4, the audio signal after power amplifier 4 will amplify are sent respectively to the first earphone jack 3a and the second earphone jack 3b by headset plug 2.
Shown in Fig. 2, during use, headset plug 2 is inserted on audio frequency apparatus, and the first earphone jack 3a and the second earphone jack 3b connect different earphones respectively；The audio output signal " L channel " of audio frequency apparatus, " R channel " pass through headset plug 2 ingoing power amplifier 4 with " GND ", as " L channel input ", " R channel input " and " GND ", audio signal is through the amplification of power amplifier 4, exported by the outfan of power amplifier 4, wherein " L channel output a ", " R channel output a " enter the first earphone jack 3a with " GND_A ", and " L channel output b ", " R channel output b " enter the second earphone jack 3b with " GND_B "；Thus realize many individuals and share the purpose of audio frequency on same audio frequency apparatus；It is likely to result in output current reduction when the earphone load of connection is too much, at this point it is possible to be connected pull-up resistor R in " L channel output " with on the holding wire of " R channel output ", and increases independent power supply VCC, ensure the normal output of audio signal with this.
Embodiment two
nullAs shown in Figure 3，This utility model provides a kind of earphone cascade device，Including housing 1，One end of housing 1 is provided with a headset plug 2，The other end of housing 1 is provided with one group of earphone jack，The present embodiment illustrates as a example by two earphone jacks，I.e. first earphone jack 3a and the second earphone jack 3b，Described housing 1 is internal is provided with two power amplifiers，I.e. first power amplifier 4a and the second power amplifier 4b，First power amplifier 4a and the first earphone jack 3a are corresponding，Second power amplifier 4b is corresponding with the second earphone jack 3b，Audio signal is separately input into the first power amplifier 4a and the second power amplifier 4b input by headset plug 2，Audio signal after first power amplifier 4a will amplify is sent to the first earphone jack 3a，Audio signal after second power amplifier 4b will amplify is sent to the second earphone jack 3b.
Shown in Fig. 4, during use, headset plug 2 is inserted on audio frequency apparatus, and the first earphone jack 3a and the second earphone jack 3b connect different earphones respectively；The audio output signal " L channel " of audio frequency apparatus, " R channel " respectively enter first power amplifier 4a and second power amplifier 4b with " GND " by headset plug 2 with " GND " conduct " L channel input ", " R channel input ", first power amplifier 4a exports to the first earphone jack 3a after the audio signal of input being amplified, and will " L channel output a ", " R channel output a " and " GND_A " export to the first earphone jack 3a；Second power amplifier 4b exports to the second earphone jack 3b after the audio signal of input being amplified, and will " L channel output b ", " R channel output b " and " GND_B " export to the second earphone jack 3b；Thus realize many individuals and share the purpose of audio frequency on same audio frequency apparatus.
The above, be only preferred embodiment of the present utility model, and this utility model is not made any pro forma restriction；Any those of ordinary skill in the art, without departing under technical solutions of the utility model ambit, technical solutions of the utility model are made many possible variations and modification by the method and the technology contents that all may utilize the disclosure above, or are revised as the Equivalent embodiments of equivalent variations.Therefore, every content without departing from technical solutions of the utility model, to any simple modification made for any of the above embodiments, equivalent, equivalence change and modify according to technical spirit of the present utility model, all still fall within the range of technical solutions of the utility model protection.
Claims (1)
1. an earphone cascade device, it is characterized in that, described earphone cascade device includes housing, one end of housing is provided with a headset plug, the other end of housing is provided with one group of earphone jack, and described enclosure interior is provided with one group of power amplifier, described power amplifier and earphone jack one_to_one corresponding, the input of audio signal input to each power amplifier, the audio signal after power amplifier will amplify are sent respectively to corresponding earphone jack by headset plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620021595.3U CN205491017U (en) | 2016-01-12 | 2016-01-12 | Earphone cascades ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620021595.3U CN205491017U (en) | 2016-01-12 | 2016-01-12 | Earphone cascades ware |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205491017U true CN205491017U (en) | 2016-08-17 |
Family
ID=56666750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620021595.3U Expired - Fee Related CN205491017U (en) | 2016-01-12 | 2016-01-12 | Earphone cascades ware |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205491017U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105611444A (en) * | 2016-01-12 | 2016-05-25 | 安徽方兴科技股份有限公司 | Headset cascading device |
-
2016
- 2016-01-12 CN CN201620021595.3U patent/CN205491017U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105611444A (en) * | 2016-01-12 | 2016-05-25 | 安徽方兴科技股份有限公司 | Headset cascading 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: 20160817 Termination date: 20220112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |