CN106231479B - Enclose iron earphone - Google Patents
Enclose iron earphone Download PDFInfo
- Publication number
- CN106231479B CN106231479B CN201610908895.8A CN201610908895A CN106231479B CN 106231479 B CN106231479 B CN 106231479B CN 201610908895 A CN201610908895 A CN 201610908895A CN 106231479 B CN106231479 B CN 106231479B
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- Prior art keywords
- contact
- earphone
- pcba
- dynamic
- iron
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1058—Manufacture or assembly
- H04R1/1066—Constructional aspects of the interconnection between earpiece and earpiece support
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Headphones And Earphones (AREA)
Abstract
The present invention provides an Artenkreis iron earphones, including shell, the moving-coil unit and dynamic iron unit being contained in shell, wherein, two PCBA and equivalent resistances are set in shell, first PCBA is connected with moving-coil unit, and it is provided with the first contact pilotage on it, the first contact corresponding with the first contact pilotage and the second contact are provided on 2nd PCBA, and the first contact is connected with dynamic iron unit, second contact is connected with equivalent resistance, the 2nd PCBA being fixed on dynamic retort stand rotations are driven by the rotation of sleeve, so that the first contact or the second contact are in contact with the first contact pilotage, when the first contact is in contact with the first contact pilotage, dynamic iron unit and moving-coil unit work at the same time；When the second contact is in contact with the first contact pilotage, moving-coil unit work.The adjustment to sound audio can be realized through the invention, and then meets the needs of different user is to alternative sounds audio, and is easy to operate, and user experience is good.
Description
Technical field
The present invention relates to acoustic-electric switch technology fields, more specifically, are related to an Artenkreis iron earphone.
Background technology
Earphone is most common articles for daily use in people's life, as the portable electronics such as high-quality smart mobile phone, Pad produce
The extensive use of product, people couple can be also higher and higher with the requirement of the earphone of its fit applications.
Earphone common at present has moving-coil earphone, dynamic iron earphone and the circle iron ear for being combined moving-coil unit and dynamic iron unit
Machine.Wherein more popular surely belongs to circle iron earphone, and clear performance and moving-coil earphone that can be by dynamic iron earphone in high segment exist
The soft and graceful natural audio of bass section combines so that the broadcasting of sound all has prominent in middle section, bass section and high segment
The performance gone out so that sound quality shows more perfect.
However, either moving-coil earphone, dynamic iron earphone still enclose iron earphone, itself does not simultaneously have any adjustable sound
The function of audio.Seen earphone at most can only also adjust the volume of sound broadcasting at present, and user is to do some sounds
The adjustment of the adjustment of effect, such as middle bass, high pitch etc. is needed to operate on the news source device of output message, so just be caused all
It is mostly inconvenient, and adjustable sound audio is also relatively simple, cannot meet the needs of different user is to alternative sounds audio.
Invention content
In view of the above problems, it the object of the present invention is to provide an Artenkreis iron earphone, is unable to adjust with solving existing earphone
The problem of sound audio.
Circle iron earphone provided by the invention includes：The shell that is made of earphone front housing and earphone rear shell is contained in shell
Moving-coil unit and dynamic iron unit, the first PCBA, the 2nd PCBA, equivalent resistance, dynamic retort stand and sleeve；Wherein, the first PCBA
It is fixed in shell, and is connected with moving-coil unit, the first contact pilotage, the first contact pilotage and dynamic iron unit phase are provided on the first PCBA
Even；Dynamic iron unit, the 2nd PCBA and equivalent resistance are each attached on dynamic retort stand, and dynamic retort stand is fixed in sleeve, sleeve
One end is inserted into shell；It is provided with contact corresponding with the first contact pilotage on the 2nd PCBA, is connected by the first contact pilotage and contact
Meet the first PCBA and the 2nd PCBA；Wherein, contact includes the first contact and the second contact, and the first contact is connected with dynamic iron unit,
Second contact is connected with equivalent resistance, drives the 2nd PCBA being fixed on dynamic retort stand to rotate by the rotation of sleeve, realizes
First contact or the second contact are in contact with the first contact pilotage；Wherein, when the first contact is in contact with the first contact pilotage, iron list is moved
Member and moving-coil unit work at the same time；When the second contact is in contact with the first contact pilotage, dynamic iron unit does not work, moving-coil unit work
Make.
Furthermore it is preferred that structure be：Earphone front housing has hollow column-shaped projection, and stop collar is provided on column-shaped projection
The limiting slot of cylinder；It is provided with limit point corresponding with limiting slot on sleeve, sleeve is carried out by limiting slot and limit point
Card is set and rotary stopper.
Furthermore it is preferred that structure be：First PCBA is fixed on by dispensing or spot welding mode in column-shaped projection.
Furthermore it is preferred that structure be：The second contact pilotage is provided on the first PCBA, the first PCBA is logical with the moving-coil unit
The second contact pilotage is crossed to be connected.
Furthermore it is preferred that structure be：Dynamic retort stand has L-shaped limiting stand, and dynamic iron is provided in the long side of L-shaped limiting stand
Unit limiting slot, dynamic iron unit are fixed in dynamic iron unit limiting slot, and equivalent resistance is fixed on the transverse direction of the short side of L-shaped limiting stand
On section.
Furthermore it is preferred that structure be：There are dynamic retort stand hollow cylindrical protrusions, cylindrical protrusions to be arranged in the L
On the longitudinal cross-section of the short side of shape limiting stand, and screw thread is provided in the hollow cylindrical protrusions of dynamic retort stand, second
PCBA is fixed on by the cooperation of screw and screw thread in the hollow cylindrical protrusions of dynamic retort stand.
Furthermore it is preferred that structure be：It is arranged with spring, one end of spring in the hollow cylindrical protrusions of dynamic retort stand
It is in contact with the short side of L-shaped limiting stand, the other end is in contact with the 2nd PCBA.
Furthermore it is preferred that structure be：It is provided with sealing ring between sleeve and earphone front housing.
Furthermore it is preferred that structure be：One end that shell is not inserted into sleeve is enclosed with ear muff, is not inserted into ear muff and sleeve
Tuning net is provided between one end of shell.
Furthermore it is preferred that structure be：The SR for further including earphone cable and being arranged on earphone cable；Wherein, one end of earphone cable
It is connected with moving-coil unit, the other end is provided with headset plug.
Using above-mentioned circle iron earphone according to the present invention, it is connected with moving-coil unit by two PCBA, and by the first PCBA,
The first contact pilotage is set on the first PCBA simultaneously, the first contact corresponding with the first contact pilotage and second are set on the 2nd PCBA
Contact, and the first contact is connected with dynamic iron unit, the second contact is connected with equivalent resistance, then passes through the rotation band of sleeve
Dynamic the 2nd PCBA rotations being fixed on dynamic retort stand so that the first contact or the second contact are in contact with the first contact pilotage, pass through
The transformation of first contact and the second contact realizes that the access of dynamic iron unit or equivalent resistance (passes through the first contact and the second contact
Transformation determination be dynamic iron unit and moving-coil unit works at the same time or only moving-coil unit works), so as to realize to sound
The adjustment of sound audio, and then meet the needs of different user is to alternative sounds audio, and it is easy to operate, user experience is good.
To the accomplishment of the foregoing and related purposes, one or more aspects of the present invention includes being particularly described below especially
The feature pointed out.Certain illustrative aspects of the invention is described in detail in the following description and the annexed drawings.However, these aspects refer to
What is shown is only that some of the various ways in the principles of the present invention can be used.In addition, the present invention is intended to include it is all this
A little aspects and their equivalent.
Description of the drawings
It is of the invention by reference to the description below in conjunction with attached drawing, and with a fuller understanding of the present invention
Other purposes and result will be more clearly understood and understood.In the accompanying drawings：
Fig. 1 is the decomposition texture schematic diagram according to the circle iron earphone of the embodiment of the present invention；
Fig. 2 is the internal cross section structural schematic diagram according to the circle iron earphone of the embodiment of the present invention；
Fig. 3 is the structural schematic diagram according to the limit point of the circle iron earphone of the embodiment of the present invention；
Fig. 4 is the exploded structural schematic diagram according to the circle iron earphone of the embodiment of the present invention；
Fig. 5 shows the structural schematic diagram of the first PCBA and the 2nd PCBA of circle iron earphone according to the ... of the embodiment of the present invention.
Identical label indicates similar or corresponding feature or function in all the appended drawings.
In figure：Earphone front housing 1, column-shaped projection 110, limiting slot 120, earphone rear shell 2, moving-coil unit 3, dynamic iron unit 4,
PCBA 5, the first contact pilotage 510, the second contact pilotage 520, PCBA 6, the first contact 610, the second contact 620, equivalent resistance 7, dynamic iron
Holder 8, L-shaped limiting stand 810, cylindrical protrusions 820, sleeve 9, limit point 910, sealing ring 10, ear muff 11, tuning net 12, spiral shell
Silk 13, spring 14, earphone cable 15, SR16.
Specific implementation mode
Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.
For the problem that aforementioned, existing earphone is unable to adjust sound audio, and the present invention in earphone case by being arranged
Two PCBA (Printed Circuit Board Assembly assemble printed circuit board) and an equivalent resistance, first
PCBA is connected with moving-coil unit, and is provided with the first contact pilotage on it, is provided on the 2nd PCBA corresponding with the first contact pilotage
The first contact and the second contact, and the first contact is connected with dynamic iron unit, the second contact is connected with equivalent resistance, passes through
The rotation of sleeve drives the 2nd PCBA rotations being fixed on dynamic retort stand so that the first contact or the second contact and the first contact pilotage
It is in contact, when the first contact is in contact with the first contact pilotage, dynamic iron unit and moving-coil unit work at the same time；When the second contact and the
When one contact pilotage is in contact, equivalent resistance can it is equivalent fall dynamic iron unit sound resistance value so that only moving-coil unit work.
The circle iron earphone provided in order to which the present invention will be described in detail, Fig. 1 show circle iron earphone according to the ... of the embodiment of the present invention
Decomposition texture, Fig. 2 shows it is according to the ... of the embodiment of the present invention circle iron earphone internal cross section structure, Fig. 3 show according to this
The structure of the limit point of the circle iron earphone of inventive embodiments, Fig. 4 show the part of circle iron earphone according to the ... of the embodiment of the present invention
Decomposition texture, Fig. 5 show the structure of the first PCBA and the 2nd PCBA of circle iron earphone according to the ... of the embodiment of the present invention.
As shown in Figures 1 to 5, circle iron earphone provided by the invention includes the shell being made of earphone front housing 1 and earphone rear shell 2
Body, the moving-coil unit 3 and dynamic iron unit 4 being contained in shell.Wherein, further include PCBA 5 (i.e. the first PCBA), PCBA 6 (i.e.
2nd PCBA), equivalent resistance 7, dynamic retort stand 8 and sleeve 9.Wherein, PCBA5 is fixed in shell, and with 3 phase of moving-coil unit
Even, the first contact pilotage 510 is provided on PCBA5；Dynamic iron unit 4, PCBA6 and equivalent resistance 7 are each attached on dynamic retort stand 8,
Dynamic retort stand 8 is fixed in sleeve 9, and one end of sleeve 9 is inserted into shell.
It is provided with contact corresponding with the first contact pilotage 510 on PCBA6, passes through the first contact pilotage 510 and contact portion
PCBA5 and PCBA6.Wherein, contact includes the first contact 610 and the second contact 620, the first contact 610 and 4 phase of dynamic iron unit
Even, the second contact 620 is connected with equivalent resistance 7, drives the PCBA6 being fixed on dynamic retort stand 8 to turn by the rotation of sleeve 9
It is dynamic, realize that the first contact 610 is in contact with the first contact pilotage 510 or the second contact 620 is in contact with the first contact pilotage 510.
In addition, being provided with the second contact pilotage 520 on PCBA5, the second contact pilotage 520 is connected with moving-coil unit 3 (that is, in this hair
In bright, PCBA5 is connected with moving-coil unit by the second contact pilotage).Wherein, the second contact pilotage 520 passes through conducting wire phase with moving-coil unit 3
Even；Likewise, the first contact 610 can be connected with dynamic iron unit 4 by conducting wire, the second contact 620 can also with equivalent resistance 7
It is connected by conducting wire.
Wherein, when the first contact 610 is in contact with the first contact pilotage 510, dynamic iron unit 4 and moving-coil unit 3 work at the same time,
In this way, can so that earphone enhancing intermediate frequency thickness and parsing, keep sound more passionate and vitality, while can also increase
The brightness of high frequency parses and prolongs liter, keeps sense of hearing more rich；When the second contact 620 and the first contact pilotage 510 are in contact, due to second
Contact 620 is connected to equivalent resistance, and therefore, equivalent resistance can eliminate the sound resistance value of dynamic iron unit 4, so that circle
Iron earphone only has the work of moving-coil unit 3.
In the example of the present invention, in order to enable PCBA5 and PCBA6 to keep balancing when being in contact, first touches
Needle 510 and the second contact pilotage 520 are two, correspondingly, the first contact 610 and the second contact 620 are also two, two first
Contact 610 be in contact respectively with two the first contact pilotages 510 or two the second contacts 620 respectively with two 510 phases of the first contact pilotage
Contact.
It is found that dynamic iron unit is fixed in dynamic retort stand, dynamic retort stand is fixed in sleeve by above-mentioned, passes through rotation
Sleeve drives the PCBA6 rotations being connected on dynamic retort stand, to realize the first contact 610 and second being arranged on PCBA6
The conversion of contact 620 determines that dynamic iron unit and moving-coil unit work at the same time or only moving-coil unit works, Jin Ershi with this
Now to the adjustment of sound audio, to meet the needs of different user is to alternative sounds audio.
Specifically, in the example of the present invention, moving-coil unit 3 and PCBA5 are each attached in earphone front housing 1, and
PCBA5 is connected with moving-coil unit 3.Wherein, earphone front housing 1 has hollow column-shaped projection 110, is arranged on column-shaped projection 110
The limiting slot 120 for having spacing collar is provided with limit point 910 corresponding with limiting slot 120 on sleeve 9, passes through limiting slot
120 and limit point 910 card is carried out to sleeve 9 and is set and rotary stopper.Wherein, sleeve 9 can be rotated by 90 °.
Further, PCBA5 is fixed in column-shaped projection 110.Wherein, PCBA5 can pass through the side of dispensing or spot welding
Formula is fixed in column-shaped projection 110.
In addition, dynamic retort stand 8 has L-shaped limiting stand 810 and hollow cylindrical protrusions 820, in L-shaped limiting stand 810
Dynamic iron unit limiting slot is provided in long side, dynamic iron unit 4 is fixed in dynamic iron unit limiting slot, and equivalent resistance 7 is fixed on L-shaped
In the lateral cross section of the short side of limiting stand 810.Cylindrical protrusions 820 are arranged in the longitudinal cross-section of the short side of L-shaped limiting stand 810
On, and screw thread is provided in cylindrical protrusions 820, screw 13 is matched with screw thread, to which PCBA6 is fixed on dynamic retort stand
In 8 hollow cylindrical protrusions.
Further, in order to can allow PCBA5 the first contact pilotage and PCBA6 contact it is good, can be in cylinder
Sheathed spring 14 in protrusion 820, one end of spring 14 are in contact with the short side of L-shaped limiting stand 810, and the other end connects with PCBA6
It touches, so when the PCBA6 being fixed on dynamic retort stand is rotated together with sleeve, under the effect of external force, passes through spring energy
The contact for enough making the contact of PCBA6 closer with the first contact pilotage of PCBA5.
In addition, sleeve 9 is skidded off from earphone front housing 1 in order to prevent, sealing is provided between sleeve 9 and earphone front housing 1
Circle 10, not only can prevent sundries from entering inside earphone by the gap between sleeve 9 and earphone front housing, but also can by sealing ring 10
To prevent sleeve from being skidded off from earphone front housing.
In addition, in circle iron earphone provided by the invention, to make circle iron earphone play good sound insulation and leakproof audio fruit,
One end that shell (being herein earphone front housing) is inserted into sleeve money is enclosed with ear muff 11.Wherein, ear muff 11 may be used silica gel or
The materials such as person's high resiliency polyester are made, when headphones are used, ear muff be inserted into duct after can be in close contact with duct, with every
Exhausted sound enters in middle ear and inner ear, while can also play the role of protecting ear；In addition, to prevent sundries from entering in earphone
Portion influences audibility, and tuning net 12 is additionally provided between one end that ear muff 11 and sleeve are not inserted into shell.
In addition, SR16 (the Speaker that circle iron earphone provided by the invention further includes earphone cable 15 and is arranged on earphone cable
Receiver, loudspeaker telephone receiver), wherein one end of earphone cable is connected with moving-coil unit, and the other end is provided with headset plug,
It is used cooperatively with external portable electronic product.It is the known normal of this field as the specific connection structure of earphone cable and SR
Know, details are not described herein.
Circle iron earphone according to the present invention is described in an illustrative manner above with reference to attached drawing.But those skilled in the art
It should be appreciated that for the circle iron earphone that aforementioned present invention is proposed, can also be made on the basis of not departing from the content of present invention
Various improvement.Therefore, protection scope of the present invention should be determined by the content of appended claims.
Claims (10)
1. an Artenkreis iron earphone includes the shell being made of earphone front housing and earphone rear shell, the moving-coil being contained in the shell
Unit and dynamic iron unit；It is characterized in that, further including：
First PCBA, the 2nd PCBA, equivalent resistance, dynamic retort stand and sleeve；Wherein,
First PCBA is fixed in the shell, and is connected with the moving-coil unit, is provided on the first PCBA
First contact pilotage；
The dynamic iron unit, the 2nd PCBA and the equivalent resistance are each attached on the dynamic retort stand, the dynamic iron branch
Frame is fixed in the sleeve, and one end of the sleeve is inserted into the shell；
It is provided with contact corresponding with first contact pilotage on the 2nd PCBA, is connected by first contact pilotage and contact
Meet the first PCBA and the 2nd PCBA；Wherein,
The contact includes the first contact and the second contact, and first contact is connected with the dynamic iron unit, and described second touches
Point is connected with the equivalent resistance, drives the 2nd PCBA being fixed on the dynamic retort stand to turn by the rotation of the sleeve
It is dynamic, realize that first contact or second contact are in contact with first contact pilotage；Wherein,
When first contact is in contact with first contact pilotage, the dynamic iron unit and the moving-coil unit work at the same time；
When second contact is in contact with first contact pilotage, the dynamic iron unit does not work, the moving-coil unit work.
2. circle iron earphone as described in claim 1, wherein
The earphone front housing has hollow column-shaped projection, and the limit for limiting the sleeve is provided on the column-shaped projection
Slot；
Limit point corresponding with the limiting slot is provided on the sleeve, by the limiting slot and limit point to described
Sleeve carries out card and sets and rotary stopper.
3. circle iron earphone as claimed in claim 2, wherein
First PCBA is fixed on by dispensing or spot welding mode in the column-shaped projection.
4. circle iron earphone as described in claim 1, wherein
The second contact pilotage is provided on the first PCBA, the first PCBA passes through second contact pilotage with the moving-coil unit
It is connected.
5. circle iron earphone as described in claim 1, wherein
The dynamic retort stand has L-shaped limiting stand, and dynamic iron unit limiting slot, institute are provided in the long side of the L-shaped limiting stand
It states dynamic iron unit to be fixed in the dynamic iron unit limiting slot, the equivalent resistance is fixed on the short side of the L-shaped limiting stand
In lateral cross section.
6. circle iron earphone as claimed in claim 5, wherein
There are the dynamic retort stand hollow cylindrical protrusions, the cylindrical protrusions short side in the L-shaped limiting stand is arranged
Longitudinal cross-section on, and screw thread is provided in the hollow cylindrical protrusions of the dynamic retort stand, the 2nd PCBA passes through
The cooperation of screw and the screw thread is fixed in the hollow cylindrical protrusions of the dynamic retort stand.
7. circle iron earphone as claimed in claim 6, wherein
Spring is arranged in the hollow cylindrical protrusions of the dynamic retort stand, one end of the spring is limited with the L-shaped
The short side of platform is in contact, and the other end is in contact with the 2nd PCBA.
8. the circle iron earphone as described in any one of claim 2~7, wherein
It is provided with sealing ring between the sleeve and the earphone front housing.
9. circle iron earphone as described in claim 1, wherein
One end that the shell is not inserted into the sleeve is enclosed with ear muff, and the shell is not inserted into the ear muff and the sleeve
Tuning net is provided between one end of body.
10. circle iron earphone as described in claim 1, wherein further include earphone cable and the SR that is arranged on the earphone cable；Its
In,
One end of the earphone cable is connected with the moving-coil unit, and the other end is provided with headset plug.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610908895.8A CN106231479B (en) | 2016-10-18 | 2016-10-18 | Enclose iron earphone |
| PCT/CN2017/090894 WO2018072469A1 (en) | 2016-10-18 | 2017-06-29 | Coil-iron earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610908895.8A CN106231479B (en) | 2016-10-18 | 2016-10-18 | Enclose iron earphone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106231479A CN106231479A (en) | 2016-12-14 |
| CN106231479B true CN106231479B (en) | 2018-10-30 |
Family
ID=58077102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610908895.8A Active CN106231479B (en) | 2016-10-18 | 2016-10-18 | Enclose iron earphone |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106231479B (en) |
| WO (1) | WO2018072469A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106231479B (en) * | 2016-10-18 | 2018-10-30 | 歌尔股份有限公司 | Enclose iron earphone |
| CN107124673A (en) * | 2017-04-25 | 2017-09-01 | 深圳市渡哲特科技有限公司 | A kind of earphone |
| CN107995551B (en) * | 2017-12-04 | 2024-01-23 | 深圳市长盈精密技术股份有限公司 | TWS earphone |
| CN208015999U (en) * | 2018-04-25 | 2018-10-26 | 深圳倍声声学技术有限公司 | A kind of dynamic swage group and duct-type receiver |
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| CN204598258U (en) * | 2015-05-06 | 2015-08-26 | 歌尔声学股份有限公司 | Multiple sound unit earphone |
| CN204761668U (en) * | 2015-06-26 | 2015-11-11 | 张尚国 | Movable coil sound production with move combined bluetooth headset of iron sound production |
| CN205622799U (en) * | 2016-03-24 | 2016-10-05 | 广东佳禾声学科技有限公司 | Indisputable formula earphone of circle |
| CN205622816U (en) * | 2016-05-20 | 2016-10-05 | 广州翊森电子科技有限公司 | Two unit in -ear earphone |
| CN105992090A (en) * | 2016-05-30 | 2016-10-05 | 歌尔股份有限公司 | Earphone |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7194103B2 (en) * | 2004-12-22 | 2007-03-20 | Ultimate Ears, Llc | In-ear monitor with hybrid diaphragm and armature design |
| TWM337208U (en) * | 2008-03-17 | 2008-07-21 | Jen-Han Yang | Speaker having earphone function |
| CN204442628U (en) * | 2015-03-27 | 2015-07-01 | 捷音特科技股份有限公司 | Range switches earphone |
| CN106231479B (en) * | 2016-10-18 | 2018-10-30 | 歌尔股份有限公司 | Enclose iron earphone |
-
2016
- 2016-10-18 CN CN201610908895.8A patent/CN106231479B/en active Active
-
2017
- 2017-06-29 WO PCT/CN2017/090894 patent/WO2018072469A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204598258U (en) * | 2015-05-06 | 2015-08-26 | 歌尔声学股份有限公司 | Multiple sound unit earphone |
| CN204761668U (en) * | 2015-06-26 | 2015-11-11 | 张尚国 | Movable coil sound production with move combined bluetooth headset of iron sound production |
| CN205622799U (en) * | 2016-03-24 | 2016-10-05 | 广东佳禾声学科技有限公司 | Indisputable formula earphone of circle |
| CN205622816U (en) * | 2016-05-20 | 2016-10-05 | 广州翊森电子科技有限公司 | Two unit in -ear earphone |
| CN105992090A (en) * | 2016-05-30 | 2016-10-05 | 歌尔股份有限公司 | Earphone |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018072469A1 (en) | 2018-04-26 |
| CN106231479A (en) | 2016-12-14 |
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