CN204350254U - Earphone horn and be provided with the earphone of these loudspeaker - Google Patents
Earphone horn and be provided with the earphone of these loudspeaker Download PDFInfo
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- CN204350254U CN204350254U CN201520057732.4U CN201520057732U CN204350254U CN 204350254 U CN204350254 U CN 204350254U CN 201520057732 U CN201520057732 U CN 201520057732U CN 204350254 U CN204350254 U CN 204350254U
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Abstract
The utility model discloses a kind of earphone horn and the earphone of these loudspeaker is installed, relate to electro-acoustic product technical field, comprise cylindrical case, the first different horn single body of output audio and the second horn single body is contained in described shell, described first horn single body and described second horn single body superposition are arranged, also comprise the support be arranged between described first horn single body and described second horn single body, described support comprises the base combined with the upper end of described second horn single body, described base is provided with at least two buckle structures for fixing described first horn single body, described base is also provided with the second loudspeaker acoustic aperture of the front operatic tunes being communicated with described second horn single body, be provided with channel of acoustic wave between described first horn single body and described shell, described channel of acoustic wave is communicated with the phonate hole of described second loudspeaker acoustic aperture and described earphone horn.The audiorange that the utility model earphone horn and the earphone being provided with these loudspeaker export is wide, and acoustics is good.
Description
Technical field
The utility model relates to electro-acoustic product technical field, particularly a kind of earphone horn and be provided with the earphone of these loudspeaker.
Background technology
Along with the development of electronic technology, the portable electric appts kind with playing audio signal gets more and more, and as MP3 (music player), mobile phone and PAD (panel computer) etc., applies also more and more universal.The sound that above-mentioned various electronic equipment sends directly can be transferred to the ear of user by earphone, avoid extraneous noisy environments to the impact listening to effect, for user provides the voice signal of high-quality, also can not interfere with other people of surrounding simultaneously, just because of earphone, there is above-mentioned advantage, thus make earphone become the requisite accessory of above-mentioned various electronic equipment.
Usually be only provided with a horn single body in existing earphone, but the output audio of each horn single body has certain scope, a horn single body can not have good acoustical behavior at full frequency band.The sound quality that some loudspeaker export in low-frequency range is fine, but the sound quality exported in other frequency range is very undesirable, and therefore these type of loudspeaker are classified as Low frequency horn by people; The sound quality that some loudspeaker export at high band is fine, but the sound quality exported in other frequency range is undesirable, and therefore these type of loudspeaker are classified as high-frequency horn by people.Due to the above-mentioned limitation of loudspeaker, thus make existing the earphone being provided with a horn single body also be provided with this kind of limitation, the audiorange exported is narrow, can only the sound of output low frequency or a kind of frequency range of high frequency, the complementation of low-and high-frequency can not be realized, stereophonic effect is not obvious, cannot meet the demand that people are more and more higher to earphone acoustics.
Utility model content
For above defect, first technical problem to be solved in the utility model is to provide a kind of earphone horn, and the audiorange that this earphone horn exports is wide, and acoustics is good.
Based on same inventive concept, second technical problem to be solved in the utility model is to provide a kind of earphone, and the audiorange that this earphone exports is wide, and acoustics is good.
For solving above-mentioned first technical problem, the technical solution of the utility model is:
A kind of earphone horn, comprise cylindrical case, the first different horn single body of output audio and the second horn single body is contained in described shell, described first horn single body and described second horn single body superposition are arranged, also comprise the support be arranged between described first horn single body and described second horn single body, described support comprises the base combined with the upper end of described second horn single body, described base is provided with at least two buckle structures for fixing described first horn single body, described base is also provided with the second loudspeaker acoustic aperture of the front operatic tunes being communicated with described second horn single body, be provided with channel of acoustic wave between described first horn single body and described shell, described channel of acoustic wave is communicated with the phonate hole of described second loudspeaker acoustic aperture and described earphone horn.
Wherein, the downside of the edge part of described base is combined on the upper surface of the lateral wall of described second horn single body, and described base forms the upper cover of described second horn single body.
Wherein, described buckle structure and described second loudspeaker acoustic aperture are positioned at the circumferentially same of the edge part of close described base, and described buckle structure and described second loudspeaker acoustic aperture are arranged alternately.
Wherein, described buckle structure comprises the linking arm be vertically set on described base, described linking arm has horizontal elasticity, the end of described linking arm is provided with the clamping part extended to described first horn single body, described clamping part is vertical with described linking arm to be arranged, and described first horn single body is fixed between described clamping part and described base.
Wherein, described shell is ladder tubular structure, and the diameter of its first half is less than the diameter of its latter half, and its top and bottom are circulus, and the center drilling being located thereon end is described phonate hole; The upper side being positioned at cascaded surface inside described shell and described pedestal edge edge fits.
Wherein, described first horn single body comprises the housing of open at one end, contains vibrational system and magnetic circuit system in described housing, and described vibrational system is positioned at the bottom of described housing, and the bottom of described housing is provided with the first loudspeaker acoustic aperture, the opening end of described housing is provided with the bending part bent inwards; The bottom of described housing is near the upper end of described shell.
Wherein, described magnetic circuit system comprises T iron, and the edge part of described T iron is fixed with limit magnet and limit washer successively, and the diaphragm of described vibrational system is fixed on the washer of described limit; The bottom of described T iron is provided with PCB, and the end of described bending part is against on the lower surface of described PCB.
Wherein, described second horn single body involving vibrations system and magnetic circuit system, described magnetic circuit system comprises frame, and the inside of described frame is provided with centring magnet and center washer successively, the sidewall of described frame is hierarchic structure, and the diaphragm of described vibrational system is fixed on the cascaded surface of described frame sidewall.
Wherein, described frame sidewall forms the lateral wall of described second horn single body, and the downside of the edge part of described base is combined on the upper surface of described frame sidewall.
For solving above-mentioned second technical problem, the technical solution of the utility model is:
A kind of earphone, comprises earphone outer covering, contains above-mentioned earphone horn in described earphone outer covering.
After have employed technique scheme, the beneficial effects of the utility model are:
Because the utility model earphone horn comprises shell, contain in shell superposition arrange and the first horn single body that output audio is different and the second horn single body, support is provided with between first horn single body and the second horn single body, support comprises the base combined with the upper end of the second horn single body, base is provided with the buckle structure for fixing the first horn single body, base is also provided with the second loudspeaker acoustic aperture of the front operatic tunes of connection second horn single body; Be provided with channel of acoustic wave between first horn single body and shell, channel of acoustic wave is communicated with the phonate hole of the second loudspeaker acoustic aperture and earphone horn.First horn single body and the second horn single body elect as different frequency range horn single body (as one be high-frequency horn, one for Low frequency horn), two horn single bodies work simultaneously, effectively widen the output audio scope of earphone horn, the complementation of low-and high-frequency can be realized, stereophonic effect is obvious, can meet the requirement that people are more and more higher to earphone acoustics.Second horn single body is spoken from the channel of acoustic wave between the first horn single body and shell simultaneously, the sound effectively avoiding two horn single bodies outputs disturbs mutually, ensure that the sound quality of earphone horn, ensure that the good acoustic performance of the utility model earphone horn.
Downside due to the edge part of base is combined on the upper surface of the lateral wall of the second horn single body, and base forms the upper cover of the second horn single body.This structure effectively simplifies the internal structure of earphone horn, has saved the inner space of earphone horn, has reduced the size of earphone horn, simplified the packaging technology of earphone horn simultaneously, reduced the production cost of earphone horn.
Because buckle structure comprises the linking arm be vertically set on base, linking arm has horizontal elasticity, and the end of linking arm is provided with the clamping part extended to the first horn single body, and clamping part is vertical with linking arm to be arranged.Only need the first horn single body to press downward to above buckle structure when installation the first horn single body, in the process of the first horn single body press-in, linking arm bends laterally, when driving clamping part to reset under the effect of linking arm at natural resiliency after the first horn single body is pressed into completely, clamping part has just been stuck on the upper surface of the first horn single body firmly, thus has been fixed on support by the first horn single body.This buckle structure structure is simple, makes the fixed work order of the first horn single body simple to operation, and good fixing effect, improve packaging efficiency.
Because the first horn single body comprises the housing of open at one end, contain vibrational system and magnetic circuit system in housing, vibrational system is positioned at the bottom of housing, and the opening end of housing is provided with the bending part bent inwards.This kind of structure of housing and the shell structure structure compared of conventional horn monomer are simple, handling ease, and it is little to take up room, and horn assembled is simple and easy to operate.
The earphone horn of enclosed inside two horn single bodies is contained in shell due to the utility model earphone, two horn single bodies work simultaneously, effectively widen the output audio scope of earphone, the complementation of low-and high-frequency can be realized, stereophonic effect is obvious, can meet the requirement that people are more and more higher to earphone acoustics.
In sum, the utility model earphone horn and the earphone being provided with these loudspeaker solve earphone output audio narrow range in prior art, the technical problem that acoustics is bad, the audiorange that the utility model earphone horn and the earphone being provided with these loudspeaker export is wide, and acoustics is good.
Accompanying drawing explanation
Fig. 1 is the stereo decomposing structural representation of the utility model earphone horn;
Fig. 2 is the constitutional diagram of Fig. 1;
Fig. 3 is the A-A line cutaway view of Fig. 2;
Fig. 4 is the B-B line cutaway view of Fig. 2;
In figure: 10, shell, 12, phonate hole, 20, first horn single body, 22, housing, 220, first loudspeaker acoustic aperture, 222, bending part, 24, PCB, 260, T iron, 262, limit magnet, 264, limit washer, 280, diaphragm, 282, voice coil loudspeaker voice coil, 284, locating ring, 30, support, 32, base, 34, buckle structure, 340, linking arm, 342, clamping part, 344, chamfer plane, 36, second loudspeaker acoustic aperture, 40, second horn single body, 42, PCB, 440, frame, 442, centring magnet, 444, center washer, 460, diaphragm, 462, voice coil loudspeaker voice coil, 48, gasket ring, 50, channel of acoustic wave.
Embodiment
Below in conjunction with drawings and Examples, set forth the utility model further.
The orientation related in this specification all refers to the direction residing for the first horn single body, under orientation, all refer to the direction residing for the second horn single body.The side at nearly earphone horn center is all depended in the inner side related in this specification.
Embodiment one:
As shown in Figure 1, Figure 2 with Fig. 3 jointly shown in, a kind of earphone horn, comprise injection casing 10, the first horn single body 20 and the second horn single body 40 superposing setting is up and down contained in shell 10, be provided with support 30 between first horn single body 20 and the second horn single body 40, the first horn single body 20 is fixed on support 30.Shell 10 is stair-stepping cylindrical structure, and the diameter of its first half is less than the diameter of its latter half, and the first horn single body 20 is positioned at the first half of shell 10, and the second horn single body 40 is positioned at the latter half of shell 10.The top and bottom of shell 10 are the circulus of center drilling, and the center drilling being positioned at shell 10 upper end is the phonate hole 12 of earphone horn.First horn single body 20 and the second horn single body 40 elect as different frequency range horn single body (as one be high-frequency horn, one for Low frequency horn), two horn single bodies work simultaneously, effectively widen the output audio scope of earphone horn, the complementation of low-and high-frequency can be realized, stereophonic effect is obvious, can meet the requirement that people are more and more higher to earphone acoustics.
As Fig. 1 and Fig. 3 jointly shown in, the first horn single body 20 and the second horn single body 40 are all that vibrational system is arranged in shell 10 upward.Support 30 comprises circular base 32, and the downside of the edge part of base 32 is combined on the upper surface of the lateral wall of the second horn single body 40, and base 32 forms the upper cover of the second horn single body 40.This structure effectively simplifies the internal structure of earphone horn, has saved the inner space of earphone horn, has reduced the size of earphone horn, simplified the packaging technology of earphone horn simultaneously, reduced the production cost of earphone horn.
Shown in common as shown in Figure 1, Figure 3 and Figure 4, base 32 is provided with the second loudspeaker acoustic aperture 36 that four are communicated with the front operatic tunes of the second horn single body 40, four the second loudspeaker acoustic aperture 36 are circular arc, be positioned at the circumferentially same of the edge part position of close base 32, the sound that the second horn single body 40 sends spreads out of from the second loudspeaker acoustic aperture 36.The upside of base 32 is also provided with four and is positioned at circumferentially same for buckle structure 34, four buckle structures 34 and four the second loudspeaker acoustic aperture 36 fixing the first horn single body 20, and four buckle structures 34 and four the second loudspeaker acoustic aperture 36 are arranged alternately.The lateral surface of buckle structure 34 and the inwall of shell 10 fit, first horn single body 20 is fixed on the inner side of four buckle structures 34, the position (being namely provided with the position of the second loudspeaker acoustic aperture 36) not then being provided with buckle structure 34 defines gap between place first horn single body 20 and the madial wall of shell 10, this gap is the channel of acoustic wave 50 of the sound transmission that the second horn single body 40 sends, and this channel of acoustic wave 50 is communicated with the second loudspeaker acoustic aperture 36 and phonate hole 12.First loudspeaker acoustic aperture 220 is corresponding with phonate hole 12, the sound that first horn single body 20 sends can directly spread out of from phonate hole 12, the sound that second horn single body 40 sends spreads out of from phonate hole 12 through channel of acoustic wave 50, and the round of sound as shown by the arrows in figure 4.The sound effectively avoiding two horn single bodies outputs that arranges of channel of acoustic wave 50 disturbs mutually, ensure that the sound quality of earphone horn, ensure that the good acoustic performance of the utility model earphone horn.
The quantity of buckle structure is not limited to four, and in reality, two or more can realize the function of fixing the first horn single body, and four is the preferred structure in present embodiment, and can ensure the fixed effect of the first horn single body, difficulty of processing is little again.The quantity of same second loudspeaker acoustic aperture is also not limited to four, as long as can meet acoustical behavior.
As Fig. 1 and Fig. 3 jointly shown in, the first horn single body 20 comprises the cylinder shell 22 of open at one end, and housing 22 is metal shell, contains vibrational system, magnetic circuit system and PCB24 in housing 22.Housing 22 bottom-up, be distributed with the opening end that multiple first loudspeaker acoustic aperture 220, PCB24 is arranged on housing 22 on its bottom, the upside of PCB24 is provided with magnetic circuit system and vibrational system successively, and vibrational system is positioned at the bottom of housing 22.The edge part that magnetic circuit system comprises T iron 260, the T iron 260 be fixed on the upside of PCB24 is fixed with limit magnet 262 and limit washer 264 successively, is formed with magnetic gap between the central part of limit magnet 262 and limit washer 264 and T iron 260.Vibrational system comprises the diaphragm 280 that edge part is fixed on limit washer 264 upper surface, the position of the corresponding magnetic gap in the middle part on the downside of diaphragm 280 is fixed with voice coil loudspeaker voice coil 282, the end of voice coil loudspeaker voice coil 282 is positioned at magnetic gap, the upside of diaphragm 280 edge part is fixed with locating ring 284, the upper end of locating ring 284 and the bottom inside of housing 22 lean, thus diaphragm 280 has been fixed on limit washer 264 firmly, effectively prevent diaphragm 280 to occur to loosen or come off in the process of vibration.The opening end of housing 22 is provided with the bending part 222 bent inwards, and the end of bending part 222 is against on the lower surface of PCB24, thus vibrational system and magnetic circuit system has been fixed on firmly in housing 22.
As Fig. 1 and Fig. 3 jointly shown in, the second horn single body 40 involving vibrations system, magnetic circuit system and PCB42, PCB42 are positioned at the second horn single body 40 bottom, and the contacted inner surfaces of its lower surface and shell 10 lower end leans on.Magnetic circuit system comprises the frame 440 be fixed on the upside of PCB42, and the sidewall of frame 440 is hierarchic structure, and the diameter of its first half is greater than the diameter of its latter half, and the outer surface of its first half and the inner surface of shell 10 fit.The inner hub location of frame 440 is fixed with centring magnet 442 and center washer 444 successively, is formed with magnetic gap between the sidewall of centring magnet 442 and center washer 444 and frame 440.The cascaded surface of the sidewall of frame 440 and the upper surface of center washer 444 flush, the edge of cascaded surface is fixed with a gasket ring 48, gasket ring 48 is copper ring, the edge part of the diaphragm 460 of vibrational system is fixed on gasket ring 48, the position of the corresponding magnetic gap in the middle part on the downside of diaphragm 460 is fixed with voice coil loudspeaker voice coil 462, and the end of voice coil loudspeaker voice coil 462 is positioned at magnetic gap.The sidewall of frame 440 defines the lateral wall of the second horn single body 40, the downside of the edge part of base 32 is combined on the upper surface of the sidewall of frame 440, the upper side of the edge part of the cascaded surface inside shell 10 and base 32 fits, thus the second horn single body 40 has been fixed on the Lower Half of shell 10.
As Fig. 1 and Fig. 3 jointly shown in, buckle structure 34 comprises the linking arm 340 be vertically set on the upside of base 32, linking arm 340 has horizontal elasticity, the end of linking arm 340 is provided with the clamping part 342 extended to the first horn single body 20, clamping part 342 is vertical with linking arm to be arranged, and the bottom outer surface of the housing 22 of the lower surface of clamping part 342 and the first horn single body 20 is suitable, the first horn single body 20 is fixed on clamping part 342, between linking arm 340 and base 32.Only need the first horn single body 20 to press downward to above buckle structure 34 when installation the first horn single body 20, in the process that the first horn single body 20 is pressed into, linking arm 340 bends laterally, when driving clamping part 342 to reset under the effect of linking arm 340 at natural resiliency after the first horn single body 20 is pressed into completely, clamping part 342 has just been stuck on the upper surface of the first horn single body 20 firmly, thus has been fixed on support by the first horn single body 20.This buckle structure 34 structure is simple, makes the fixed work order of the first horn single body 20 simple to operation, and good fixing effect, improve packaging efficiency.
As Fig. 1 and Fig. 3 jointly shown in, present embodiment is preferably provided with chamfering inclined-plane 344 in the inner side of the upper surface of clamping part 342, the press-in of chamfering inclined-plane 344 to the first horn single body 20 serves guide effect, further reduce the difficulty of the first horn single body 20 fixed work order, improve the packaging efficiency of earphone horn greatly.
Shown in common as shown in Figure 1, Figure 3 and Figure 4, the operation principle of the utility model earphone horn is as follows:
The voice coil loudspeaker voice coil 282 of the first horn single body 20 passes to its sound wave signal of telecommunication size and Orientation according to PCB24 does reciprocal moving up and down in magnetic gap, diaphragm 280 vibrates along with moving up and down of voice coil loudspeaker voice coil 282, thus instigate air sounding, send high-frequency sound or low-frequency sound and spread out of the operatic tunes before the first horn single body 20 by the first loudspeaker acoustic aperture 220, finally spread out of earphone horn from phonate hole 12.The operation principle of the second horn single body 40 is identical with the operation principle of the first horn single body 20, operation principle about the second horn single body 40 is not described in detail in this, the low-frequency sound that second horn single body 40 sends or high-frequency sound spread out of the operatic tunes before the second horn single body 40 by the second loudspeaker acoustic aperture 36, then spread out of earphone horn by channel of acoustic wave 50 by phonate hole 12.From above-mentioned operation principle, the utility model earphone horn can take into account High-frequency and low-frequency, and the audiorange of output is wide, and acoustics is good.
Embodiment two:
A kind of earphone, comprises earphone outer covering, is provided with the earphone horn described in embodiment one in earphone outer covering.
The earphone horn of enclosed inside high-frequency horn monomer and a Low frequency horn monomer is contained in the shell of the present embodiment earphone, two horn single bodies work simultaneously, effectively widen the output audio scope of earphone, the complementation of low-and high-frequency can be realized, stereophonic effect is obvious, can meet the requirement that people are more and more higher to earphone acoustics.
This specification is only to the utility model, the technical scheme that different for audio frequency two horn single bodies are encapsulated in a shell is carried out detailed illustrating for the horn single body of said structure, in practical application, the structure of horn single body is not limited to the structure described in above-described embodiment, any two horn single bodies for the different frequency in earphone all can be encapsulated in a shell in order to widen the audiorange of earphone, those skilled in the art do not need to pay creative work according to the description of this specification and just can replace in the technical solution of the utility model by the horn single body of other structure, therefore no matter whether the structure of horn single body is identical with the horn single body structure in above-described embodiment, as long as have employed the earphone horn that to be superposed by horn single bodies different for two audio frequency and be encapsulated in a shell and earphone products all falls within protection range of the present utility model.
Band sequenced technical characteristic name (as the first horn single body and the second horn single body) related in this specification is only to distinguish technical characteristic, does not represent the position relationship between each technical characteristic, job order, encapsulation order etc.
The utility model is not limited to above-mentioned concrete execution mode, and those of ordinary skill in the art is from above-mentioned design, and without performing creative labour, all conversion made, all drop within protection range of the present utility model.
Claims (10)
1. earphone horn, comprise cylindrical case, the first different horn single body of output audio and the second horn single body is contained in described shell, described first horn single body and described second horn single body superposition are arranged, it is characterized in that, also comprise the support be arranged between described first horn single body and described second horn single body, described support comprises the base combined with the upper end of described second horn single body, described base is provided with at least two buckle structures for fixing described first horn single body, described base is also provided with the second loudspeaker acoustic aperture of the front operatic tunes being communicated with described second horn single body, be provided with channel of acoustic wave between described first horn single body and described shell, described channel of acoustic wave is communicated with the phonate hole of described second loudspeaker acoustic aperture and described earphone horn.
2. earphone horn according to claim 1, is characterized in that, the downside of the edge part of described base is combined on the upper surface of the lateral wall of described second horn single body, and described base forms the upper cover of described second horn single body.
3. earphone horn according to claim 2, is characterized in that, described buckle structure and described second loudspeaker acoustic aperture are positioned at the circumferentially same of the edge part of close described base, and described buckle structure and described second loudspeaker acoustic aperture are arranged alternately.
4. earphone horn according to claim 3, it is characterized in that, described buckle structure comprises the linking arm be vertically set on described base, described linking arm has horizontal elasticity, the end of described linking arm is provided with the clamping part extended to described first horn single body, described clamping part is vertical with described linking arm to be arranged, and described first horn single body is fixed between described clamping part and described base.
5. the earphone horn according to the arbitrary claim of Claims 1-4, it is characterized in that, described shell is ladder tubular structure, and the diameter of its first half is less than the diameter of its latter half, its top and bottom are circulus, and the center drilling being located thereon end is described phonate hole; The upper side being positioned at cascaded surface inside described shell and described pedestal edge edge fits.
6. earphone horn according to claim 5, it is characterized in that, described first horn single body comprises the housing of open at one end, vibrational system and magnetic circuit system is contained in described housing, described vibrational system is positioned at the bottom of described housing, and the bottom of described housing is provided with the first loudspeaker acoustic aperture, the opening end of described housing is provided with the bending part bent inwards; The bottom of described housing is near the upper end of described shell.
7. earphone horn according to claim 6, is characterized in that, described magnetic circuit system comprises T iron, and the edge part of described T iron is fixed with limit magnet and limit washer successively, and the diaphragm of described vibrational system is fixed on the washer of described limit; The bottom of described T iron is provided with PCB, and the end of described bending part is against on the lower surface of described PCB.
8. earphone horn according to claim 7, it is characterized in that, described second horn single body involving vibrations system and magnetic circuit system, described magnetic circuit system comprises frame, the inside of described frame is provided with centring magnet and center washer successively, the sidewall of described frame is hierarchic structure, and the diaphragm of described vibrational system is fixed on the cascaded surface of described frame sidewall.
9. earphone horn according to claim 8, is characterized in that, described frame sidewall forms the lateral wall of described second horn single body, and the downside of the edge part of described base is combined on the upper surface of described frame sidewall.
10. an earphone, comprises earphone outer covering, it is characterized in that, contains the earphone horn described in any one of claim 1 to 9 claim in described earphone outer covering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520057732.4U CN204350254U (en) | 2015-01-27 | 2015-01-27 | Earphone horn and be provided with the earphone of these loudspeaker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520057732.4U CN204350254U (en) | 2015-01-27 | 2015-01-27 | Earphone horn and be provided with the earphone of these loudspeaker |
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| CN204350254U true CN204350254U (en) | 2015-05-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106851457A (en) * | 2017-03-01 | 2017-06-13 | 歌尔科技有限公司 | Loudspeaker and PlayGear Stealth |
| CN115914913A (en) * | 2021-09-30 | 2023-04-04 | 华为技术有限公司 | Sound output device |
-
2015
- 2015-01-27 CN CN201520057732.4U patent/CN204350254U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106851457A (en) * | 2017-03-01 | 2017-06-13 | 歌尔科技有限公司 | Loudspeaker and PlayGear Stealth |
| WO2018157535A1 (en) * | 2017-03-01 | 2018-09-07 | 歌尔科技有限公司 | Speaker and earplug earphones |
| US10917712B2 (en) | 2017-03-01 | 2021-02-09 | Goertek Technology Co., Ltd. | Speaker and earplug earphones |
| CN115914913A (en) * | 2021-09-30 | 2023-04-04 | 华为技术有限公司 | Sound output device |
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Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee before: Goertek Inc. |