CN203313373U

CN203313373U - Universal earphone with volume adjusting function

Info

Publication number: CN203313373U
Application number: CN2013203610683U
Authority: CN
Inventors: 殷翔
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-06-18
Filing date: 2013-06-18
Publication date: 2013-11-27
Anticipated expiration: 2023-06-18

Abstract

The utility model provides a universal earphone with a volume adjusting function. The universal earphone comprises an earphone plug, a microphone electrically connected with the earphone plug, and a sounding unit. The earphone plug has a first terminal, a second terminal, a third terminal and a fourth terminal, wherein the first terminal is correspondingly and electrically connected with a grounding end, the second terminal is correspondingly and electrically connected with the microphone, the third terminal and the fourth terminal are correspondingly and electrically connected with a left channel and a right channel of the sounding unit respectively. A switching circuit is arranged between the first terminal and the second terminal to enable function switching of the first terminal and the second terminal to be realized. Sliding potentiometers are respectively arranged between the third terminal and the left channel of the sounding unit and between the fourth terminal and the right channel of the sounding unit to control the magnitude of input currents of the left channel and the right channel. The universal earphone is compatible, has a volume control function and has the advantages of simple structure, lower cost and higher practicability.

Description

General headrest with volume adjusting function

Technical field

The utility model relates to a kind of earphone, relates in particular to a kind of general headrest with volume adjusting function.

Background technology

Along with popularizing of smart mobile phone and mobile terminal, and the development of electronic technology, intelligent mobile terminal (as smart mobile phone and panel computer) can provide the function that is similar to music player, thus earphone more and more become these mobile terminals must join product.Concrete using method is exactly that the Earphone joint will be equipped with on existing earphone directly is inserted in earphone interface suitable on moving terminal.

At present, the terminal equipment earphone interface of mobile phone standards such as general computer, mobile phone, MP3, MP4, PSP have two in the world, and one is the standard of OMTP, and one is the standard of CTIA.In general, what international manufacturer major part was used is the CTIA standard, and the product of domestic manufacturers needs to support the OMTP standard.

Owing to take smart mobile phone, as the earphone interface of the mobile terminal of representative, can only select a kind of interface standard and be equipped with, therefore, corresponding earphone can only be supported a kind of interface standard.For the Earphone joint of CTIA standard and OMTP standard, on plug, from tip, the definition of first paragraph and second segment is the same, connects respectively L channel (L), and R channel (R).The main distinction is the definition of third and fourth section, the definition of CTIA standard is followed successively by ground wire (GND) and microphone/control loop (MIC), and the definition of OMTP standard is just in time opposite, the 3rd section is microphone/control loop (MIC), and the 4th section is ground wire/signal circuit (GND).

When the definition of the definition of the earphone jack of terminal and headset plug is inconsistent, be also, microphone/the control loop of headset plug (MIC) is connected on the ground wire/signal circuit (GND) of terminal equipment, ground wire/the signal circuit of headset plug (GND) is connected on the microphone/control loop of terminal equipment (MIC), the problem that there will be earphone normally to use, make earphone not possess versatility.

The utility model content

The purpose of this utility model is, provides a kind of general headrest with volume adjusting function, to address the above problem.

To achieve these goals, the utility model provides a kind of general headrest with volume adjusting function, comprise: headset plug, and the microphone be electrically connected with headset plug respectively, and phonation unit, headset plug has the corresponding the first terminal that is electrically connected earth terminal, corresponding the second terminal that is electrically connected microphone, and correspondence is electrically connected the L channel of phonation unit and the 3rd terminal and the 4th terminal of R channel respectively, between the first terminal and the second terminal, also be provided with switching circuit to realize controlling the function switching of the first terminal and the second terminal, between the L channel of the 3rd terminal and phonation unit and between the R channel of the 4th terminal and phonation unit, be provided with slide potentiometer to realize respectively controlling the size of L channel and R channel input current.

Wherein, described switching circuit comprises two grades of toggle switches of six pin, it comprises the first pin, the second pin, the 3rd pin, the 4th pin, the 5th pin, the 6th pin, the first toggle switch, and the second toggle switch, this first pin and the 4th pin are electrically connected with the first terminal respectively, the 3rd pin and the 6th pin are electrically connected with the second terminal respectively, this second pin and the 5th pin are in parallel with microphone respectively, the second pin is electrically connected earth terminal, the 5th pin is electrically connected a high level end, when two grades of toggle switches of six pin are in first grade, the first pin is electrically connected by the first toggle switch and the second pin, the 5th pin is electrically connected by the second toggle switch and the 6th pin, when two grades of toggle switches of six pin are in second gear, the second pin is electrically connected by the first toggle switch and the 3rd pin, the 4th pin is electrically connected by the second toggle switch and the 5th pin.

Wherein, described the second pin and the 5th pin are also in parallel with a touch-switch respectively.

The beneficial effects of the utility model: the utility model has solved the same earphone when the distinct device terminal connects use, and due to the difference of terminal interface standard, and the problem that the earphone caused can't normally be used improves compatibility, reduces costs; Simultaneously, can also carry out the earpiece volume adjusting, greatly improve practicality.

In order further to understand feature of the present utility model and technology contents, refer to following about detailed description of the present utility model and accompanying drawing, yet accompanying drawing only provide with reference to and the explanation use, not be used for the utility model is limited.

The accompanying drawing explanation

Below in conjunction with accompanying drawing, by embodiment of the present utility model is described in detail, will make the technical solution of the utility model and other beneficial effect apparent.

In accompanying drawing,

Fig. 1 is the circuit connection diagram that the utlity model has the general headrest of volume adjusting function;

Fig. 2 is the schematic diagram of headset plug of the present utility model.

Embodiment

Technological means and the effect thereof for further setting forth the utility model, taked, be described in detail below in conjunction with preferred embodiment of the present utility model and accompanying drawing thereof.

As shown in Figure 1-2, the utility model provides a kind of general headrest with volume adjusting function, comprise: headset plug 10, and the microphone 20 be electrically connected with headset plug 10 respectively, and phonation unit, headset plug 10 has the corresponding the first terminal 11 that is electrically connected earth terminal, corresponding the second terminal 12 that is electrically connected microphone 20, and correspondence is electrically connected the L channel of phonation unit and the 3rd terminal 13 and the 4th terminal 14 of R channel respectively, between the first terminal 11 and the second terminal 12, also be provided with switching circuit to realize controlling the function switching of the first terminal 11 and the second terminal 12, between the L channel of the 3rd terminal 13 and phonation unit and between the R channel of the 4th terminal and phonation unit, be provided with slide potentiometer 30 to realize respectively controlling the size of L channel and R channel input current.

This switching circuit comprises two grades of toggle switches 40 of six pin, it comprises the first pin 1, the second pin 2, the 3rd pin 3, the 4th pin 4, the 5th pin 5, the 6th pin 6, the first toggle switch, reaches the second toggle switch, this first pin 1 and the 4th pin 4 are electrically connected with the first terminal 11 respectively, the 3rd pin 3 and the 6th pin 6 are electrically connected with the second terminal 12 respectively, this second pin 2 and the 5th pin 5 are in parallel with microphone 20 and a touch-switch 50 respectively, the second pin 2 is electrically connected earth terminal, and the 5th pin 5 is electrically connected a 3.3V high level end.

As shown in Figure 2, in use, when two grades of toggle switches of six pin are in first grade, the first pin 1 is electrically connected by the first toggle switch and the second pin 2, the 5th pin 5 is electrically connected by the second toggle switch and the 6th pin 6, at this moment, if the MIC of terminal earphone interface and the definition position of GND end and the first terminal 11 and second terminal 12 of Earphone joint 10 match, earphone is to work so.If misfit, while two grades of toggle switches of six pin being in to second gear, the second pin 2 is electrically connected by the first toggle switch and the 3rd pin 3, the 4th pin 4 is electrically connected by the second toggle switch and the 5th pin 5, namely the second original terminal 12 of headset plug has connected earth terminal, original the first terminal 11 has connected microphone, simply say to be exactly that the microphone of Earphone joint and earth terminal are exchanged, become and microphone and the earth terminal position consistency of terminal interface, in these cases, make the definition of headset plug and the definition of terminal interface become consistent, earphone can be worked.

The 3rd terminal 13 of headset plug and the 4th terminal 14 access respectively the input of slide potentiometer 30, and the output of slide potentiometer 30 is the phonation unit of frames connecting with headphone respectively, as left and right loudspeaker, horn assembly, driver element or loud speaker and loudspeaker assembly.So far, Earphone joint, toneable earphone compatible circuit and earphone phonation unit form complete earphone system.

The above; for the person of ordinary skill of the art; can make other various corresponding changes and distortion according to the technical solution of the utility model and technical conceive, and all these changes and distortion all should belong to the protection range of the utility model claim.

Claims

1. general headrest with volume adjusting function, comprise: headset plug, and the microphone be electrically connected with headset plug respectively, and phonation unit, headset plug has the corresponding the first terminal that is electrically connected earth terminal, corresponding the second terminal that is electrically connected microphone, and correspondence is electrically connected the L channel of phonation unit and the 3rd terminal and the 4th terminal of R channel respectively, it is characterized in that: between the first terminal and the second terminal, also be provided with switching circuit to realize controlling the function switching of the first terminal and the second terminal, between the L channel of the 3rd terminal and phonation unit and between the R channel of the 4th terminal and phonation unit, be provided with slide potentiometer to realize respectively controlling the size of L channel and R channel input current.

2. the general headrest with volume adjusting function as claimed in claim 1, it is characterized in that, described switching circuit comprises two grades of toggle switches of six pin, it comprises the first pin, the second pin, the 3rd pin, the 4th pin, the 5th pin, the 6th pin, the first toggle switch, and the second toggle switch, this first pin and the 4th pin are electrically connected with the first terminal respectively, the 3rd pin and the 6th pin are electrically connected with the second terminal respectively, this second pin and the 5th pin are in parallel with microphone respectively, the second pin is electrically connected earth terminal, the 5th pin is electrically connected a high level end, when two grades of toggle switches of six pin are in first grade, the first pin is electrically connected by the first toggle switch and the second pin, the 5th pin is electrically connected by the second toggle switch and the 6th pin, when two grades of toggle switches of six pin are in second gear, the second pin is electrically connected by the first toggle switch and the 3rd pin, the 4th pin is electrically connected by the second toggle switch and the 5th pin.

3. the general headrest with volume adjusting function as claimed in claim 2, is characterized in that, described the second pin and the 5th pin are also in parallel with a touch-switch respectively.