CN202454281U - MP3 player with common-ground and non-common-ground change-over switch - Google Patents
MP3 player with common-ground and non-common-ground change-over switch Download PDFInfo
- Publication number
- CN202454281U CN202454281U CN2012200782503U CN201220078250U CN202454281U CN 202454281 U CN202454281 U CN 202454281U CN 2012200782503 U CN2012200782503 U CN 2012200782503U CN 201220078250 U CN201220078250 U CN 201220078250U CN 202454281 U CN202454281 U CN 202454281U
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- socket
- common
- ground
- headphone
- player
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- Expired - Fee Related
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Abstract
The utility model discloses an MP3 player with a common-ground and non-common-ground change-over switch. The MP3 player comprises an MP3 main machine, the back of the MP3 main machine is provided with a headphone amplifier card placing cavity, the headphone amplifier card placing cavity is provided with a headphone amplifier card socket for inserting of a headphone amplifier card, and a socket plate of the MP3 main machine is provided with a line output socket, a headphone socket and the common-ground and non-common-ground change-over switch. The headphone socket is a common-ground and non-common-ground sharing headphone socket. By additionally arranging the common-ground and non-common-ground change-over switch, the MP3 player enables a common-ground headphone socket and a non-common-ground headphone socket to be shared, the using range of an MP3 player headphone is expanded, the problem that the headphone amplifier card, the headphone socket and the headphone are not matched with each other is solved, and a user can use one MP3 player to enjoy his favorite music by replacing different headphone amplifier cards so as to be matched with different headphones.
Description
Technical field
The utility model belongs to the electronic digital product technical field, relates to the carry-on player of a kind of MP3, is specifically related to a kind of being provided with commonly and the MP3 player of switch altogether not.
Background technology
A kind of MP3 player that can change earphone amplifying circuit card (the abbreviation ear is put card) of selling in the market; The MP3 digital decoding circuit that it is provided with through the MP3 player; Can put card at the ear that ear is put on the card socket the different output impedance of pegging graft; Insert the earphone that is complementary in earphone jack again, just can obtain the sense of hearing of different tonequality audios.But; Ear put card be divided into commonly with not altogether ear put two kinds on card, the design of earphone amplifying circuit is when exporting commonly, the MP3 earphone socket must use common ground earphone socket; Earphone amplifying circuit design is a balance when altogether not exporting, and the MP3 earphone socket must use not earphone accessory power outlet altogether; Earphone is divided into common ground earphone and two kinds on balanced earphone altogether, and earphone must use the earphone socket that designs to listen to the music commonly altogether, and the balanced earphone must use not altogether the balance earphone socket on ground to listen to the music altogether.Ear puts card and earphone can not be general, must coupling use.Caused some inconvenience for like this use of MP3 earphone.
The utility model content
The purpose of the utility model provides a kind of being provided with commonly and the MP3 player of switch altogether not.Can make the user only use a not earphone socket on ground altogether, put card coupling with two kinds of different earphones (altogether with not altogether) with corresponding ear and use, just can appreciate commonly and the music of earphone amplifying circuit altogether not.
The technical scheme that the utility model adopted is; A kind of being provided with commonly and the MP3 player of switch altogether not comprises the MP3 main frame, and the MP3 main frame back side is provided with ear and puts the card placed cavity; Ear is put the card placed cavity and is provided with the grafting ear and puts the ear of card and put the card socket; The socket of MP3 main frame is provided with circuit accessory power outlet and earphone socket, and said socket is provided with commonly and switch altogether not, described earphone socket for altogether with sharing earphone socket altogether not.
The utility model is compared prior art, has following beneficial effect:
1, through setting up commonly and switch altogether not, realized common ground earphone socket and not earphone socket shared altogether, enlarged the usable range of MP3 player earphone;
Troubling when 2, having solved MP3 player ear and put card, earphone socket and earphone and do not match makes the user change different ears with a MP3 player and put the music that coupling different earphone appreciation in card back is liked oneself.
Description of drawings
Fig. 1 is that the utility model is provided with commonly and the MP3 player structural representation of switch altogether not;
Fig. 2 is the structural representation of the utility model MP3 player socket;
Fig. 3 is that the utility model is provided with commonly and the fundamental diagram of the MP3 player of switch altogether not;
Among the figure, the 1.MP3 main frame, 2. ear is put the card placed cavity, 3. ear is put card, 4. ear is put the card socket, 5. socket, 6. circuit accessory power outlet, 7. earphone socket, 8. altogether with switch altogether not, 9.MP3 amplifying circuit, 10. low-pass filter.
Embodiment
In conjunction with accompanying drawing and embodiment the utility model is elaborated.
A kind of being provided with commonly and the MP3 player of switch altogether not; As depicted in figs. 1 and 2, comprise MP3 main frame 1, described MP3 main frame 1 back side is provided with ear and puts card placed cavity 2; Ear is put card placed cavity 2 and is provided with the grafting ear and puts the ear of card 3 and put card socket 4; The socket 5 of MP3 main frame 1 is provided with circuit accessory power outlet 6 and earphone socket 7, and said socket 5 is provided with commonly and switch 8 altogether not, described earphone socket 7 for altogether with sharing earphone socket altogether not.
As shown in Figure 3, the utility model is a kind of to be provided with commonly and the MP3 player of switch altogether not, through MP3 amplifying circuit 9; Divide left and right acoustic channels output with simulating signal; Through low-pass filter 10, the one road is connected to circuit accessory power outlet 6, supplies the independent power amplifier of peripheral hardware to make input signal source usefulness; Another road output is connected to ear and puts card socket 4; The ear that ear is put the amplifying circuit of the different designs of can pegging graft on the card socket 4 is put card 3; In order to mate the earphone of different impedances; Putting card socket 4 through ear will export the ear that signal and electric current and voltage be transported to grafting and put on the card 3; Put signal after the amplifying circuit processing and amplifying of card 3 through ear and put card socket 4 through the ear that connects again and output on the earphone socket 7, or through altogether with not altogether switch 8 output on the earphone socket 7, supply insertion and different ears to put the earphone that card 3 matees and come music appreciating and song.
During use, if earphone is the balance earphone on ground altogether not, ear put card 3 be not altogether ear put card, coupling is directly inserted MP3 player earphone socket 7 with this earphone each other, just can listen to music; If earphone is the common headphones on common ground; Will with not altogether the ear on ground put card 3 and take out; The ear that inserts is altogether put card 3, makes it to mate, and stirs commonly and switch 8 to altogether common headphones socket position altogether not again; Common headphones is altogether inserted MP3 player earphone socket 7, but with regard to music appreciating and song.
Above-mentioned embodiment is an instance of the utility model; Not enforcement and the interest field that is used for limiting the utility model; All equivalences of making according to the described content of the utility model patent protection scope change and modify, and all should be included in the utility model claim.
Claims (1)
1. one kind is provided with commonly and the MP3 player of switch altogether not; Comprise MP3 main frame (1); MP3 main frame (1) back side is provided with ear and puts card placed cavity (2), and ear is put card placed cavity (2) and is provided with the grafting ear and puts the ear of card (3) and put card socket (4), and the socket (5) of MP3 main frame (1) is provided with circuit accessory power outlet (6) and earphone socket (7); It is characterized in that said socket (5) is provided with commonly and switch (8) altogether not.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200782503U CN202454281U (en) | 2012-03-05 | 2012-03-05 | MP3 player with common-ground and non-common-ground change-over switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200782503U CN202454281U (en) | 2012-03-05 | 2012-03-05 | MP3 player with common-ground and non-common-ground change-over switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202454281U true CN202454281U (en) | 2012-09-26 |
Family
ID=46870126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200782503U Expired - Fee Related CN202454281U (en) | 2012-03-05 | 2012-03-05 | MP3 player with common-ground and non-common-ground change-over switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202454281U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114138699A (en) * | 2021-11-01 | 2022-03-04 | 珠海格力电器股份有限公司 | Serial port communication processing method, device, equipment, control system and storage medium |
-
2012
- 2012-03-05 CN CN2012200782503U patent/CN202454281U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114138699A (en) * | 2021-11-01 | 2022-03-04 | 珠海格力电器股份有限公司 | Serial port communication processing method, device, equipment, control system and storage medium |
| CN114138699B (en) * | 2021-11-01 | 2024-03-26 | 珠海格力电器股份有限公司 | Serial communication processing method, device, equipment, control system and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: HIFIMAN (TIANJIN) TECHNOLOGY CO., LTD. Assignor: Bian Fang Contract record no.: 2013120000026 Denomination of utility model: MP3 player with common-ground and non-common-ground change-over switch Granted publication date: 20120926 License type: Exclusive License Record date: 20130524 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20150305 |
|
| EXPY | Termination of patent right or utility model |