CN204633989U - Earphone socket and electronic equipment - Google Patents
Earphone socket and electronic equipment Download PDFInfo
- Publication number
- CN204633989U CN204633989U CN201520332496.2U CN201520332496U CN204633989U CN 204633989 U CN204633989 U CN 204633989U CN 201520332496 U CN201520332496 U CN 201520332496U CN 204633989 U CN204633989 U CN 204633989U
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- Prior art keywords
- headset plug
- terminal
- earphone
- terminals
- earphone socket
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Abstract
The utility model discloses a kind of earphone socket and electronic equipment, comprise shell, the first terminal, the second terminal and two the 3rd terminals; Wherein, described shell forms earphone jack, and described the first terminal, the second terminal and two the 3rd terminals are arranged in described earphone jack; Described the first terminal, when headset plug inserts described earphone jack, contacts with the L channel section of described headset plug; Described second terminal, when headset plug inserts described earphone jack, contacts with the R channel section of described headset plug; Described two the 3rd terminals, when headset plug inserts described earphone jack, contact with the ground section of described headset plug respectively.Adopt two terminals contacted with the ground section of headset plug, the effect promoting reducing crosstalk is maximum, and now minimum to the change of the inside of earphone socket, without the need to arranging grounded circuit more how insulated from each other, the technology difficulty of the earphone socket that can not significantly increase and cost.
Description
Technical field
The utility model belongs to electronic technology field, specifically, relates to a kind of earphone socket and electronic equipment.
Background technology
The plug of current earphone has multiple standards, and correspondingly, the headset plug in the equipment such as mobile phone is also corresponding has multiple standards with the plug standards of earphone, and most of mobile phone in the market can only select the headset plug supporting a kind of standard.People are also increasing to be made a phone call by earphone or listens to multimedia programming.
People require also more and more higher to the tonequality played out of earphone.Stereophone is the important devices of stereo set, its frequency response is very wide, the feature such as simultaneously also possess low distortion, power saving, audio frequency resolving power is strong, surround sound is clear, music rhythm is fine and smooth, so be used widely in the equipment such as all kinds of sound equipment, telecommunications.Stereophone is divided into ear type and wear-type two kinds, all has the difference of left and right acoustic channels, mutually can not exchange use, otherwise by the resolving power of the fidelity and sound source frequency that directly affect sound source.Mutual crosstalk between left channel signals and right-channel signals, also can impact the sense of hearing of earphone.
Utility model content
In view of this, the utility model embodiment provides a kind of earphone socket and electronic equipment, in order to solve the larger technical problem of mutual crosstalk in prior art between left channel signals and right-channel signals.
In order to solve above technical problem, the utility model embodiment provides a kind of earphone socket, comprises shell, the first terminal, the second terminal and two the 3rd terminals; Wherein, described shell forms earphone jack, and described the first terminal, the second terminal and two the 3rd terminals are arranged in described earphone jack; Described the first terminal, when headset plug inserts described earphone jack, contacts with the L channel section of described headset plug; Described second terminal, when headset plug inserts described earphone jack, contacts with the R channel section of described headset plug; Described two the 3rd terminals, when headset plug inserts described earphone jack, contact with the ground section of described headset plug respectively.
Described two the 3rd terminals are symmetricly set in the both sides in described earphone jack.
Also be provided with the 4th terminal in described earphone jack, described 4th terminal, when headset plug inserts described earphone jack, contacts with the microphone segment of described headset plug.
Described two the 3rd terminals are metallic elastic laminated structure.
Described the first terminal and the second terminal are metallic elastic laminated structure or metal ball structure.
In order to solve above technical problem, the utility model embodiment still provides a kind of electronic equipment, and described electronic equipment comprises any one earphone socket above-mentioned.
Compared with prior art, the earphone socket that the utility model embodiment provides and electronic equipment, adopt two terminals contacted with the ground section of headset plug, the effect promoting reducing crosstalk is maximum, and it is now minimum to the change of the inside of earphone socket, without the need to arranging grounded circuit more how insulated from each other, the technology difficulty of the earphone socket that can not significantly increase and cost, the structure of corresponding headset plug is also without the need to changing simultaneously, use syllogic or the four-section type headset plug of existing standard, avoid the cost increasing auxiliary products further.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 (a) is the connection diagram of the peripheral hardware earphone of electronic equipment in prior art;
Fig. 1 (b) is the contact site schematic diagram of earphone socket and headset plug in prior art;
Equivalent circuit diagram when Fig. 1 (c) is headset plug plugged earphone socket in prior art;
Fig. 2 (a) is the structural representation of a kind of earphone socket that the utility model embodiment provides;
Fig. 2 (b) be the earphone socket that provides of the utility model embodiment and syllogic plug with the use of time contact site schematic diagram;
Fig. 3 (a) is the structural representation of a kind of earphone socket that the utility model embodiment provides;
Fig. 3 (b) be the earphone socket that provides of the utility model embodiment and four-part form plug with the use of time contact site schematic diagram.
Embodiment
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Fig. 1 (a) is the connection diagram of the peripheral hardware earphone of electronic equipment in prior art, and wherein L channel earphone receives analog output signal, and right-channel ear receiving digital signals exports, and L channel earphone and right-channel ear have common earth terminal.For the four-section type headset plug shown in Fig. 1 (b), when headset plug inserts the earphone socket of electronic equipment, L channel earphone is connected electronic equipment publicly with right-channel ear by the ground section of headset plug, can produce contact resistance when earphone socket contacts with the ground section of headset plug.Equivalent electric circuit now as shown in Fig. 1 (c), wherein R
gNDbe the contact impedance between earphone socket and headset plug, this impedance draws by following formulae discovery the crosstalk Crosstalk that earphone produces:
Wherein, R
1and R
2be respectively the impedance that L channel earphone and right-channel ear line are introduced, " ‖ " represents parallel impedance.From this formula: by reducing R as much as possible
gNDearphone crosstalk can be reduced.In the ideal situation, R is worked as
gNDwhen being infinitely close to zero, crosstalk is also corresponding to zero.
In prior art, produce the technical scheme reducing this contact impedance by increasing the contact point quantity contacted with ground section simultaneously, make corresponding contact area be increased to several times, and consequent contact impedance R
gDNthen correspondingly be reduced to the 1/N (N is the contact point quantity contacted with ground section) of situation shown in Fig. 1 (c).
The impedance of headset left channel and R channel is generally identical resistance R, therefore can be by above-mentioned simplified formula:
Because R is far longer than R
gND, so R
gND‖ R ≈ R
gND, this formula can be reduced to:
Further, because R is far longer than R
gND, so R
gND+ R ≈ R, therefore can be reduced to further at this formula:
therefore, if total contact impedance R when only having a contact point
gND=R
g, then total contact impedance R when having two contact points
gND=R
g/ 2, total contact impedance R when having three contact points
gND=R
g/ 3, the rest may be inferred.
Such as, multiple metal ball structure is set at the ground section of headset plug, during headset plug plugged earphone socket, produces the contact impedance of multiple parallel connection simultaneously, thus reduce overall contact impedance.Such as, when 8 metal ball structures are set, make earphone crosstalk reduction
And inventor of the present utility model finds, at the ground section of headset plug, multiple metal ball structure is set, manufacturing process difficulty and the cost of headset plug will be increased, and corresponding earphone socket also must arrange the contact jaw of respective numbers, and must the contact impedance that can form multiple parallel connection insulated from each other between these contact jaws, considerably increase process implementing difficulty and the cost of earphone socket.Although the contact jaw contacted with headset plug ground section is in theory more simultaneously, crosstalk reduction also more, but the manufacture craft of the actual effect of crosstalk reduction and earphone socket and cost should be considered, to find the contact jaw quantity more contacted with headset plug ground section simultaneously.Inventor of the present utility model has carried out comparing as follows to various different contact jaw quantity:
According to above-mentioned data, inventor of the present utility model finds, often increase a contact jaw, crosstalk can be reduced further, but the effect promoting reducing crosstalk can reduce gradually, therefore should not increase contact jaw quantity simply, and contact jaw quantity, the effect of reduction crosstalk reached and the difficulty of earphone socket manufacture craft and cost should be considered.As can be seen from the above data, when contact jaw quantity is two, the effect promoting reducing crosstalk is maximum, and it is now minimum to the change of the inside of earphone socket, without the need to arranging grounded circuit more how insulated from each other, the technology difficulty of the earphone socket that can not significantly increase and cost, the structure of corresponding headset plug is also without the need to changing simultaneously, use syllogic or the four-section type headset plug of existing standard, avoid the cost of manufacture increasing auxiliary products further.Based on above-mentioned factor, inventor has invented the earphone socket in the utility model embodiment.
Fig. 2 (a) is a kind of earphone socket that the utility model embodiment provides, and comprises shell 20, the first terminal 21, second terminal 22 and two the 3rd terminals 23.Shell 20 forms earphone jack 25, and the first terminal 21, second terminal 22 and two the 3rd terminals 23 are arranged in described earphone jack 25.The first terminal 21, when headset plug plugged earphone jack 25, contacts with the L channel section of headset plug; Second terminal 22, when headset plug plugged earphone jack 25, contacts with the R channel section of headset plug; Two the 3rd terminals 23, when headset plug plugged earphone jack 25, contact with the ground section of headset plug respectively.Detection terminal 24 is also provided with, for detecting output waveform to have determined whether that headset plug correctly inserts in the earphone jack 25 of this earphone socket.This earphone socket can match with the three-section earphone plug shown in Fig. 2 (b), when this three-section earphone plug inserts this earphone socket, the contact position of earphone socket and headset plug is as shown in Fig. 2 (b), two the 3rd terminals contact with ground section respectively, form contact impedance in parallel, total contact impedance is reduced, thus reaches the effect reducing crosstalk.
Fig. 3 (a) is a kind of earphone socket that the utility model embodiment provides, and comprising: comprise shell 30, the first terminal 31, second terminal 32, the 4th terminal 36 and two the 3rd terminals 33.Shell 30 forms earphone jack 35, and the first terminal 31, second terminal 32, the 4th terminal 36 and two the 3rd terminals 33 are arranged in described earphone jack 35.The first terminal 31, when headset plug plugged earphone jack 35, contacts with the L channel section of headset plug; Second terminal 32, when headset plug plugged earphone jack 35, contacts with the R channel section of headset plug; Two the 3rd terminals 33, when headset plug plugged earphone jack 35, contact with the ground section of headset plug simultaneously; 4th terminal 36, when headset plug plugged earphone jack 35, contacts with the microphone segment of headset plug.Detection terminal 34 is also provided with, for detecting output waveform to have determined whether that headset plug correctly inserts in the earphone jack 35 of this earphone socket.This earphone socket can match with the four-section type headset plug such as shown in Fig. 3 (b), when this four-section type headset plug inserts this earphone socket, the contact position of earphone socket and headset plug is as shown in Fig. 3 (b), two the 3rd terminals contact with ground section respectively, form contact impedance in parallel, total contact impedance is reduced, thus reaches the effect reducing crosstalk.
At the earphone socket that the utility model provides, two the 3rd terminals are insulated from each other and contact with the ground section of headset plug respectively, in one embodiment, two the 3rd terminals are symmetricly set in the both sides in described earphone jack, make earphone socket suitable to the contact of headset plug ground section, make the contact of earphone socket and headset plug more reliable.
In one embodiment, these two the 3rd terminals are metallic elastic laminated structure, adopt laminated structure can increase the contact area of the 3rd terminal and headset plug ground section further, make contact impedance little and also contact more stable, this metallic sheet-like formation has elasticity also can make earphone socket tightr with coordinating of headset plug, makes the contact of the 3rd terminal and earphone socket ground section more stable.And the first terminal and the second terminal can be metallic elastic laminated structure or metal ball structure.
The utility model embodiment still provides a kind of electronic equipment, this electronic equipment comprises any one earphone socket in the utility model above-described embodiment, with the crosstalk between each sound channel reducing supporting earphone, and it is now minimum to the change of the inside of earphone socket, without the need to arranging grounded circuit more how insulated from each other, the technology difficulty of the earphone socket that can not significantly increase and cost, the structure of corresponding headset plug is also without the need to changing simultaneously, use syllogic or the four-section type headset plug of existing standard, avoid the cost of manufacture increasing auxiliary products further.
Device embodiment described above is only schematic, the wherein said unit illustrated as separating component or can may not be and physically separates, parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of module wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.Those of ordinary skill in the art, when not paying performing creative labour, are namely appreciated that and implement.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that each execution mode can add required general hardware platform by software and realize, and can certainly pass through hardware.Based on such understanding, technique scheme can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product can store in a computer-readable storage medium, as ROM/RAM, magnetic disc, CD etc., comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform the method described in some part of each embodiment or embodiment.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (6)
1. an earphone socket, is characterized in that, comprises shell, the first terminal, the second terminal and two the 3rd terminals; Wherein, described shell forms earphone jack, and described the first terminal, the second terminal and two the 3rd terminals are arranged in described earphone jack;
Described the first terminal, when headset plug inserts described earphone jack, contacts with the L channel section of described headset plug;
Described second terminal, when headset plug inserts described earphone jack, contacts with the R channel section of described headset plug;
Described two the 3rd terminals, when headset plug inserts described earphone jack, contact with the ground section of described headset plug respectively.
2. earphone socket according to claim 1, is characterized in that, described two the 3rd terminals are symmetricly set in the both sides in described earphone jack.
3. earphone socket according to claim 1, is characterized in that, is also provided with the 4th terminal in described earphone jack, and described 4th terminal, when headset plug inserts described earphone jack, contacts with the microphone segment of described headset plug.
4. earphone socket according to claim 1, is characterized in that, described two the 3rd terminals are metallic elastic laminated structure.
5. earphone socket according to claim 1, is characterized in that, described the first terminal and the second terminal are metallic elastic laminated structure or metal ball structure.
6. an electronic equipment, is characterized in that, described electronic equipment comprise as arbitrary in claim 1-5 as described in earphone socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520332496.2U CN204633989U (en) | 2015-05-21 | 2015-05-21 | Earphone socket and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520332496.2U CN204633989U (en) | 2015-05-21 | 2015-05-21 | Earphone socket and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204633989U true CN204633989U (en) | 2015-09-09 |
Family
ID=54052967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520332496.2U Expired - Fee Related CN204633989U (en) | 2015-05-21 | 2015-05-21 | Earphone socket and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204633989U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106550295A (en) * | 2015-09-22 | 2017-03-29 | 魅族科技（中国）有限公司 | A kind of headset plug, earphone interface circuit and communication equipment |
| WO2017133148A1 (en) * | 2016-02-01 | 2017-08-10 | 中兴通讯股份有限公司 | Headphone plug, socket, headphone and terminal |
| WO2020010943A1 (en) * | 2018-07-12 | 2020-01-16 | 中兴通讯股份有限公司 | Audio processing apparatus, audio crosstalk processing method and apparatus |
-
2015
- 2015-05-21 CN CN201520332496.2U patent/CN204633989U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106550295A (en) * | 2015-09-22 | 2017-03-29 | 魅族科技（中国）有限公司 | A kind of headset plug, earphone interface circuit and communication equipment |
| WO2017133148A1 (en) * | 2016-02-01 | 2017-08-10 | 中兴通讯股份有限公司 | Headphone plug, socket, headphone and terminal |
| WO2020010943A1 (en) * | 2018-07-12 | 2020-01-16 | 中兴通讯股份有限公司 | Audio processing apparatus, audio crosstalk processing method and apparatus |
| US11418884B2 (en) | 2018-07-12 | 2022-08-16 | Zte Corporation | Audio processing apparatus, audio crosstalk processing method and apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160126 Address after: Korea 101300 Beijing city Shunyi District town culture camp north of the village (two Airport Road No. 1) Patentee after: Mobile intelligent information technology (Beijing) Co., Ltd. Address before: 300467 Tianjin Binhai New Area, ecological city, animation Middle Road, building, No. two, B1 District, 201-427 Patentee before: LESHI ZHIXIN ELECTRONIC SCIENCE & TECHNOLOGY (TIANJIN) CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20170521 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |