CN201238372Y - Double-frequency coaxial headphone - Google Patents
Double-frequency coaxial headphone Download PDFInfo
- Publication number
- CN201238372Y CN201238372Y CNU2008201116128U CN200820111612U CN201238372Y CN 201238372 Y CN201238372 Y CN 201238372Y CN U2008201116128 U CNU2008201116128 U CN U2008201116128U CN 200820111612 U CN200820111612 U CN 200820111612U CN 201238372 Y CN201238372 Y CN 201238372Y
- Authority
- CN
- China
- Prior art keywords
- frequency
- voice coil
- ring
- earphone
- loudspeaker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Headphones And Earphones (AREA)
Abstract
A two-frequency coaxial earphone comprises a speaker frame body, a share heel piece, a high audio frequency part and a low audio frequency part. The earphone is mainly characterized in that the high audio frequency part and the low audio frequency part are coaxially arranged in the share heel piece and positioned on the same axis with the central opening of the speaker frame body; besides, the permanent magnet of the high audio frequency part has an apposite polarity direction with the ring magnet of the low audio frequency part. Therefore, audio frequency of the low audio frequency part can be reversed when passing through a sound penetration ring groove, so as to form same polarity direction with that of the high audio frequency part and then to be output synchronously, thus, different audio frequencies of the high audio frequency part can be separated from that of the low audio frequency part, which effectively solves the problem of intermodulation distortion of high and low audio frequencies while ensuring the smallest volume of the earphone.
Description
Technical field
The utility model is about a kind of earphone structure, refers in particular to a kind of earphone structure that is applicable to that double frequency is coaxial.
Background technology
Fig. 1 is the cutaway view of known earphone, and as shown in the figure, known earphone 9 comprises an earphone case 90, a signal line 91, a vibrating diaphragm 92, a permanet magnet 93, a voice coil loudspeaker voice coil 94, a magnetic conductive part 95, reaches a yoke 96.
As shown in Figure 1, signal line 91, vibrating diaphragm 92, permanet magnet 93, voice coil loudspeaker voice coil 94, magnetic conductive part 95, and yoke 96 be located in earphone case 90 inside respectively, wherein, voice coil loudspeaker voice coil 94 is mounted on the vibrating diaphragm 92 and corresponding being surrounded on outside the periphery of permanet magnet 93, but keep a radial clearance with magnetic conductive part 95, permanet magnet 93 is located between magnetic conductive part 95 and the yoke 96.
Wherein, signal line 91 electrically connects with voice coil loudspeaker voice coil 94, when audio signal is input into voice coil loudspeaker voice coil 94 by signal line 91, voice coil loudspeaker voice coil 94 can produce a magnetic field by galvanomagnetic effect, the reciprocation of magnetic force takes place in this magnetic field again with magnetic conductive part 95, and make vibrating diaphragm 92 vibrations, and then audio signal is converted to audio frequency sound output.
In known technology; general audio signal all includes high and low audio-frequency unit; so vibration on same vibrating diaphragm 92; and produce high and low audio frequency sound simultaneously; but it has the characteristic of different wave length and amplitude owing to high and low audio frequency sound; as being clearly different characteristics to be separated only, be the shortcoming that produces high and low audio frequency intermodulation distortion with known regular meeting, thereby can't make that sound is clear and represent with same vibrating diaphragm 92.If insert high and low sound loudspeaker, will make known earphone volume become big again, be not suitable for present known earphone size again with the high and low audio signal of broadcast out of the ordinary.
The utility model content
The purpose of this utility model is to provide a kind of double frequency coaxial earphone, and to solve the problem of high-low sound frequency intermodulation distortion, the volume that can have earphone again concurrently minimizes.
For achieving the above object, the coaxial earphone of the double frequency that the utility model provides comprises a loudspeaker framework (Frame), a shared yoke (Shared yoke), a high audio portion (High frequency speakerpart), reaches a bass portion (Low frequency speaker part).
The loudspeaker framework comprises a header board (front board), reaches a ring-side wall (peripheral wall), ring-side wall is located on the outer shroud week of header board, ring-side wall inner face and header board inner face one common peripheral are around forming an accommodation space, header board provided a central opening, and a plurality of penetrable sound holes be communicated to accommodation space respectively, a plurality of penetrable sound holes are laid at least a portion on the header board in central opening outer shroud week respectively.
Shared yoke is a cap shaped and is located in the accommodation space of loudspeaker framework, shared yoke comprises a cap bizet, reaches a marginal ridge portion, marginal ridge portion is located on the outer peripheral edges of cap bizet, marginal ridge portion is fixedly arranged on the header board inner face of loudspeaker framework, the cap bizet is coaxial to correspond to the central opening of header board and away from header board, the cap bizet comprises an inner concave.
High audio portion comprises a permanet magnet (Permanent magnet), a magnetic conductive part (Pole piece), a high frequency voice coil loudspeaker voice coil (High frequency voice coil), reaches a high-frequency diaphragm (High frequencydiaphragm), permanet magnet is located in the cap bizet of sharing yoke, permanet magnet is located between the inner concave of magnetic conductive part and shared yoke, the high frequency voice coil loudspeaker voice coil is mounted on the high-frequency diaphragm and corresponding being surrounded on outside the periphery of magnetic conductive part, but keep a radial clearance with magnetic conductive part, the high-frequency diaphragm periphery is mounted on the header board of loudspeaker framework central opening periphery.
One bass portion comprises an annular magnetite, an annular magnetic conductive part, a low frequency voice coil loudspeaker voice coil, reaches a low frequency vibrating diaphragm, the annular magnetic stone ring is placed in outside the cap bizet of sharing yoke, the annular magnetite is located between the marginal ridge portion of annular magnetic conductive part and shared yoke, the magnetic conductive part of annular magnetite and high audio portion has the opposite polarity direction, the low frequency voice coil loudspeaker voice coil is mounted on the low frequency vibrating diaphragm and corresponding ccontaining being inserted in the inner ring of annular magnetic conductive part, but keep another radial clearance with annular magnetic conductive part, low frequency vibrating diaphragm periphery is mounted on the inner face of loudspeaker framework ring-side wall end edge.
Wherein, that shares yoke and bass portion is outside all less than the ring-side wall inner face of loudspeaker framework, and each interval one saturating sound annular groove, and the sound annular groove is a plurality of penetrable sound holes that are communicated to the loudspeaker framework thoroughly.
In addition, the coaxial earphone of double frequency can also comprise an earphone case, reach a signal line, and wherein, earphone case can comprise an earplug, and earphone case can comprise an earmuff, and the coaxial earphone of double frequency can also comprise a circuit board or a frequency dividing circuit.
Moreover high-frequency diaphragm can comprise scrobicular ring in, reach an outer scrobicular ring, and on the scrobicular ring, outer scrobicular ring was mounted on the header board of loudspeaker framework central opening periphery in the high frequency voice coil loudspeaker voice coil was mounted on; The low frequency vibrating diaphragm comprises scrobicular ring in, reaches an outer scrobicular ring, and on the scrobicular ring, outer scrobicular ring was mounted on the inner face of loudspeaker framework ring-side wall end edge in the low frequency voice coil loudspeaker voice coil was mounted on.The coaxial earphone of double frequency, it can also comprise a retainer ring, it is mounted on the inner face of loudspeaker framework ring-side wall end edge.
In other words, the coaxial earphone of double frequency of the present utility model, it comprises:
One loudspeaker framework, comprise a header board, reach a ring-side wall, this ring-side wall is located on the outer shroud week of this header board, this ring-side wall inner face and this header board inner face one common peripheral are around forming an accommodation space, this header board provided a central opening, and a plurality of penetrable sound holes be communicated to this accommodation space respectively, these a plurality of penetrable sound holes are laid at least a portion on this header board in this central opening outer shroud week respectively;
One shares yoke, be a cap shaped and be located in this accommodation space of this loudspeaker framework, should share yoke comprises a cap bizet, reaches a marginal ridge portion, this marginal ridge portion is located on the outer peripheral edges of this cap bizet, this marginal ridge portion is fixedly arranged on this header board inner face of this loudspeaker framework, this cap bizet is coaxial to correspond to this central opening of this header board and away from this header board, this cap bizet comprises an inner concave;
One high audio portion, comprise a permanet magnet, a magnetic conductive part, a high frequency voice coil loudspeaker voice coil, reach a high-frequency diaphragm, this permanet magnet is located in this cap bizet of this shared yoke, this permanet magnet is located in this magnetic conductive part and should shares between this inner concave of yoke, this high frequency voice coil loudspeaker voice coil is mounted on this high-frequency diaphragm and corresponding being surrounded on outside the periphery of this magnetic conductive part, but keep a radial clearance with this magnetic conductive part, this high-frequency diaphragm periphery is mounted on this header board of this loudspeaker framework; And
One bass portion, comprise an annular magnetite, one annular magnetic conductive part, one low frequency voice coil loudspeaker voice coil, an and low frequency vibrating diaphragm, this annular magnetic stone ring is placed in outside this cap bizet of this shared yoke, this annular magnetite is located in this annular magnetic conductive part and should shares between this marginal ridge portion of yoke, this permanet magnet of this annular magnetite and this high audio portion has the opposite polarity direction, this low frequency voice coil loudspeaker voice coil is mounted on this low frequency vibrating diaphragm and corresponding ccontaining being inserted in the inner ring of this annular magnetic conductive part, but keep another radial clearance with this annular magnetic conductive part, this low frequency vibrating diaphragm periphery is mounted on this ring-side wall of this loudspeaker framework;
Wherein, this shared yoke and this bass portion be respectively less than this ring-side wall of this loudspeaker framework, and be separated out a saturating sound annular groove, and this saturating sound annular groove is these a plurality of penetrable sound holes that are communicated to this loudspeaker framework.
The coaxial earphone of described double frequency, it also comprises an earphone case, reaches a signal line.
The coaxial earphone of described double frequency, wherein this earphone case comprises an earplug.
The coaxial earphone of described double frequency, wherein this earphone case comprises an earmuff.
The coaxial earphone of described double frequency is comprising a circuit board.
The coaxial earphone of described double frequency wherein also comprises a frequency dividing circuit.
The coaxial earphone of described double frequency, wherein this high-frequency diaphragm comprises scrobicular ring in, reaches an outer scrobicular ring, and this high frequency voice coil loudspeaker voice coil is mounted on scrobicular ring place in this, and this outer scrobicular ring is mounted on this header board of this loudspeaker framework
The coaxial earphone of described double frequency, wherein this low frequency vibrating diaphragm comprises scrobicular ring in, reaches an outer scrobicular ring, and this low frequency voice coil loudspeaker voice coil is mounted on scrobicular ring place in this, and this outer scrobicular ring is mounted on this ring-side wall of this loudspeaker framework.
The coaxial earphone of described double frequency wherein also comprises a retainer ring, and this retainer ring is mounted on the inner face of this loudspeaker framework ring-side wall end edge.
The utility model is mainly shared coaxial being arranged at of high audio portion and bass portion inside and outside the yoke, and is located at same axis with the central opening of loudspeaker framework.In addition, the annular magnetite of the permanet magnet of high audio portion and bass portion has the opposite polarity direction.Therefore, the audio frequency of bass portion can pass the sound annular groove and give anti-phasely, makes with the audio frequency of high audio portion and forms homophase and output synchronously, so high audio portion can be separated with the different audio frequency of bass portion, effectively solve the problem of high-low sound frequency intermodulation distortion, the volume that can have earphone again concurrently minimizes.
Description of drawings
Fig. 1 is known cutaway view.
Fig. 2 is the exploded view of the utility model first preferred embodiment.
Fig. 3 is the cutaway view of the utility model first preferred embodiment.
Fig. 4 is the constitutional diagram of the utility model first preferred embodiment.
Fig. 5 is the cutaway view of the utility model second preferred embodiment.
Fig. 6 is the constitutional diagram of the utility model the 3rd preferred embodiment.
Fig. 7 is the cutaway view of the utility model the 3rd preferred embodiment.
Primary clustering symbol description in the accompanying drawing:
High frequency voice coil loudspeaker voice coil 33; High-frequency diaphragm 34; Interior scrobicular ring 341;
Outer scrobicular ring 342; Bass portion 4; Annular magnetite 41;
Annular magnetic conductive part 42; Low frequency voice coil loudspeaker voice coil 43; Low frequency vibrating diaphragm 44;
Interior scrobicular ring 441; Outer scrobicular ring 442; Retainer ring 45;
Saturating sound annular groove 46; Circuit board 5; Frequency dividing circuit 51;
Earphone case 6,7,8,90; Signal line 61,91; Earplug 71;
Earmuff 81; Ear 82; Earphone 9;
Embodiment
Please consult Fig. 2 simultaneously, reach Fig. 3, Fig. 2 is the exploded view of the utility model first preferred embodiment, and Fig. 3 is the cutaway view of the utility model first preferred embodiment.
As shown in the figure, present embodiment is the coaxial earphone of a kind of double frequency, comprises a loudspeaker framework 1, one shared yoke 2, a high audio portion 3, reaches a bass portion 4.
In this example, high-frequency diaphragm 34 comprises scrobicular ring 341 in, reaches an outer scrobicular ring 342, and on the scrobicular ring 341, outer scrobicular ring 342 was mounted on the header board 11 of loudspeaker framework 1 central opening 111 peripheries in high frequency voice coil loudspeaker voice coil 33 was mounted on.
Bass portion, comprise an annular magnetite 41, one annular magnetic conductive part 42, one low frequency voice coil loudspeaker voice coil 43, and a low frequency vibrating diaphragm 44 annular magnetites 41 are located on outside the cap bizet 21 of sharing yoke 2, annular magnetite 41 is located between the marginal ridge portion 22 of annular magnetic conductive part 42 and shared yoke 2, annular magnetite 41 has the opposite polarity direction with the permanet magnet 31 of high audio portion 3, low frequency voice coil loudspeaker voice coil 43 is mounted on the low frequency vibrating diaphragm 44 and corresponding ccontaining being inserted in the inner ring of annular magnetic conductive part 42, and between the cap bizet 21 of itself and shared yoke 2, but keep another radial clearance with annular magnetic conductive part 42, in order to strengthen and the magnetic of concentrated annular magnetic stone 41 between low frequency voice coil loudspeaker voice coil 43 and annular magnetic conductive part 42, low frequency vibrating diaphragm 44 peripheries are mounted on the inner face 120 of loudspeaker framework 1 ring-side wall 12 end edges.
In this example, low frequency vibrating diaphragm 44 comprises scrobicular ring 441 in, reaches an outer scrobicular ring 442, and on the scrobicular ring 441, outer scrobicular ring 442 was mounted on the inner face 120 of loudspeaker framework 1 ring-side wall 12 end edges in low frequency voice coil loudspeaker voice coil 43 was mounted on.
Wherein, that shares yoke 2 and bass portion 4 is outside all less than ring-side wall 12 inner faces 120 of loudspeaker framework 1, and each interval one saturating sound annular groove 46, and sound annular groove 46 is a plurality of penetrable sound holes 112 that are communicated to loudspeaker framework 1 thoroughly.
See also Fig. 2, the coaxial earphone of the double frequency of present embodiment also comprises a circuit board 5, can be mounted on the loudspeaker framework 1.The coaxial earphone of this double frequency also comprises a frequency dividing circuit 51, frequency dividing circuit 51 is in order to the audio mixing input signal is separated into high frequency output signal and low frequency output signal, to provide high frequency voice coil loudspeaker voice coil 33 and low frequency voice coil loudspeaker voice coil 43 to use respectively, preferably one is mounted on Miniaturizable, lightweight in the foregoing circuit plate 5.
Again as shown in Figures 2 and 3, the coaxial earphone of the double frequency of present embodiment comprises a retainer ring 45, and it is mounted on the inner face 120 of loudspeaker framework 1 ring-side wall 12 end edges, in order to fixing low frequency vibrating diaphragm 44.
As shown in Figure 3, ear 82 with the hearer is a reference data, the polarity of the permanet magnet 31 of high audio portion 3 is the S-N utmost point, and the polarity of the annular magnetite 41 of bass portion 4 is the N-S utmost point, its opposite polarity directions, yet the audio frequency of bass portion 4 can pass sound annular groove 46 and give anti-phasely, makes with the audio frequency of high audio portion 3 and forms homophase and output synchronously.
Present embodiment mainly is with high audio portion 3 and bass portion 4 coaxial being arranged on the inner concave 211 and outer convex surface 212 of sharing yoke 2 its cap bizets 21, and is located at same axis with the central opening 111 of loudspeaker framework 1.In addition, the permanet magnet 31 of high audio portion 3 has the opposite polarity direction with the annular magnetite 41 of bass portion 4.Therefore, the audio frequency of bass portion 4 can pass sound annular groove 46 and give anti-phase, make audio frequency formation homophase and output synchronously with high audio portion 3, so high audio portion 3 can be separated with the different audio frequency of bass portion 4, effectively solve the problem of high-low sound frequency intermodulation distortion, the volume that can have earphone again concurrently minimizes.
Seeing also Fig. 4, is the constitutional diagram of the utility model first preferred embodiment.As shown in the figure, the coaxial earphone of the described double frequency of present embodiment also comprises an earphone case 6, reaches a signal line 61, and loudspeaker framework 1 is located in the earphone case 6, and signal line 61 is electrically connected at frequency dividing circuit 51, to provide frequency dividing circuit 51 audio mixing input signals.
Seeing also Fig. 5, is the cutaway view of the utility model two preferred embodiments.As shown in the figure, the structure of itself and a last embodiment is roughly the same, and only different to be in earphone case 7 are the housings 7 that belong to a PlayGear Stealth, so comprise an earplug 71.
See also Fig. 6 and Fig. 7, Fig. 6 is the constitutional diagram of the utility model the 3rd preferred embodiment, and Fig. 7 is the cutaway view of the utility model the 3rd preferred embodiment.As shown in the figure, roughly the same in the structure of present embodiment itself and first embodiment, only different to be in earphone case 8 are the housings 8 that belong to an all cover earphone, so comprise an earmuff 81.
The foregoing description only is to give an example for convenience of description, and the interest field that the utility model is advocated is from should but not only limiting to the foregoing description with described being as the criterion of claim scope of application.
Claims (8)
1, the coaxial earphone of a kind of double frequency is characterized in that, comprising:
One loudspeaker framework, comprise a header board, reach a ring-side wall, this ring-side wall is located on the outer shroud week of this header board, this ring-side wall inner face and this header board inner face one common peripheral are around forming an accommodation space, this header board provided a central opening, and a plurality of penetrable sound holes be communicated to this accommodation space respectively, these a plurality of penetrable sound holes are laid at least a portion on this header board in this central opening outer shroud week respectively;
One shares yoke, be a cap shaped and be located in this accommodation space of this loudspeaker framework, should share yoke comprises a cap bizet, reaches a marginal ridge portion, this marginal ridge portion is located on the outer peripheral edges of this cap bizet, this marginal ridge portion is fixedly arranged on this header board inner face of this loudspeaker framework, this cap bizet is coaxial to correspond to this central opening of this header board and away from this header board, this cap bizet comprises an inner concave;
One high audio portion, comprise a permanet magnet, a magnetic conductive part, a high frequency voice coil loudspeaker voice coil, reach a high-frequency diaphragm, this permanet magnet is located in this cap bizet of this shared yoke, this permanet magnet is located in this magnetic conductive part and should shares between this inner concave of yoke, this high frequency voice coil loudspeaker voice coil is mounted on this high-frequency diaphragm and corresponding being surrounded on outside the periphery of this magnetic conductive part, but keep a radial clearance with this magnetic conductive part, this high-frequency diaphragm periphery is mounted on this header board of this loudspeaker framework; And
One bass portion, comprise an annular magnetite, one annular magnetic conductive part, one low frequency voice coil loudspeaker voice coil, an and low frequency vibrating diaphragm, this annular magnetic stone ring is placed in outside this cap bizet of this shared yoke, this annular magnetite is located in this annular magnetic conductive part and should shares between this marginal ridge portion of yoke, this permanet magnet of this annular magnetite and this high audio portion has the opposite polarity direction, this low frequency voice coil loudspeaker voice coil is mounted on this low frequency vibrating diaphragm and corresponding ccontaining being inserted in the inner ring of this annular magnetic conductive part, but keep another radial clearance with this annular magnetic conductive part, this low frequency vibrating diaphragm periphery is mounted on this ring-side wall of this loudspeaker framework;
Wherein, this shared yoke and this bass portion be respectively less than this ring-side wall of this loudspeaker framework, and be separated out a saturating sound annular groove, and this saturating sound annular groove is these a plurality of penetrable sound holes that are communicated to this loudspeaker framework.
2, the coaxial earphone of double frequency as claimed in claim 1 is characterized in that, comprises an earphone case, reaches a signal line.
3, the coaxial earphone of double frequency as claimed in claim 2 is characterized in that, wherein this earphone case comprises an earplug.
4, the coaxial earphone of double frequency as claimed in claim 2 is characterized in that, wherein this earphone case comprises an earmuff.
5, the coaxial earphone of double frequency as claimed in claim 1 is characterized in that, comprises a circuit board.
6, the coaxial earphone of double frequency as claimed in claim 1 is characterized in that, comprises a frequency dividing circuit.
7, the coaxial earphone of double frequency as claimed in claim 1 is characterized in that, wherein this high-frequency diaphragm comprises scrobicular ring in, reaches an outer scrobicular ring, and this high frequency voice coil loudspeaker voice coil is mounted on scrobicular ring place in this, and this outer scrobicular ring is mounted on this header board of this loudspeaker framework
8, the coaxial earphone of double frequency as claimed in claim 1 is characterized in that, wherein this low frequency vibrating diaphragm comprises scrobicular ring in, reaches an outer scrobicular ring, and this low frequency voice coil loudspeaker voice coil is mounted on scrobicular ring place in this, and this outer scrobicular ring is mounted on this ring-side wall of this loudspeaker framework.
9, the coaxial earphone of double frequency as claimed in claim 1 is characterized in that, comprises a retainer ring, and this retainer ring is mounted on the inner face of this loudspeaker framework ring-side wall end edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201116128U CN201238372Y (en) | 2008-05-16 | 2008-05-16 | Double-frequency coaxial headphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201116128U CN201238372Y (en) | 2008-05-16 | 2008-05-16 | Double-frequency coaxial headphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201238372Y true CN201238372Y (en) | 2009-05-13 |
Family
ID=40651104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201116128U Expired - Lifetime CN201238372Y (en) | 2008-05-16 | 2008-05-16 | Double-frequency coaxial headphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201238372Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103024639A (en) * | 2012-11-29 | 2013-04-03 | 郁志曰 | Coaxial two-horn driving unit and earphones thereof |
| WO2014094625A1 (en) * | 2012-12-21 | 2014-06-26 | 东莞泉声电子有限公司 | A high bass speaker monomer and a high bass earphone structure |
| CN106162460A (en) * | 2016-07-25 | 2016-11-23 | 东莞市科音声学科技有限公司 | A kind of bicyclic Loudspeaker diaphragm and the loudspeaker with this bicyclic Loudspeaker diaphragm |
| CN106210946A (en) * | 2015-05-05 | 2016-12-07 | 酷码科技股份有限公司 | Customize Headphone structure and removable sound broadcasting module thereof |
| US20210377651A1 (en) * | 2020-05-28 | 2021-12-02 | Bujeon Co., Ltd. | 2-way type microspeaker having drum safety filter structure |
-
2008
- 2008-05-16 CN CNU2008201116128U patent/CN201238372Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103024639A (en) * | 2012-11-29 | 2013-04-03 | 郁志曰 | Coaxial two-horn driving unit and earphones thereof |
| CN103024639B (en) * | 2012-11-29 | 2015-10-21 | 郁志曰 | A kind of coaxial double horn driver element and earphone thereof |
| WO2014094625A1 (en) * | 2012-12-21 | 2014-06-26 | 东莞泉声电子有限公司 | A high bass speaker monomer and a high bass earphone structure |
| US20150249878A1 (en) * | 2012-12-21 | 2015-09-03 | Transound Electronics Co., Ltd. | High bass speaker monomer and a high bass earphone structure |
| US9602912B2 (en) * | 2012-12-21 | 2017-03-21 | Transound Electronics Co., Ltd. | High bass speaker monomer and a high bass earphone structure |
| CN106210946A (en) * | 2015-05-05 | 2016-12-07 | 酷码科技股份有限公司 | Customize Headphone structure and removable sound broadcasting module thereof |
| CN106162460A (en) * | 2016-07-25 | 2016-11-23 | 东莞市科音声学科技有限公司 | A kind of bicyclic Loudspeaker diaphragm and the loudspeaker with this bicyclic Loudspeaker diaphragm |
| US20210377651A1 (en) * | 2020-05-28 | 2021-12-02 | Bujeon Co., Ltd. | 2-way type microspeaker having drum safety filter structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8077898B2 (en) | Dual-frequency coaxial earphones | |
| CN203378015U (en) | Double-frequency coaxial earphone | |
| US8189847B2 (en) | Dual-frequency coaxial earphones with shared magnet | |
| CN204305300U (en) | Double-frequency coaxial earphone | |
| KR101674296B1 (en) | Piezoelectric ceramic dual-band bass-enhanced earpiece | |
| US8135163B2 (en) | Balanced armature with acoustic low pass filter | |
| EP3016403A1 (en) | Bone conduction speaker | |
| US20080317255A1 (en) | Audio Transducer Component | |
| US20160314779A1 (en) | Central noise reduction loudspeaker | |
| CN204334907U (en) | Double-frequency coaxial earphones | |
| CN201238372Y (en) | Double-frequency coaxial headphone | |
| CN109286881B (en) | Combined phase plug and application thereof in compression driver and loudspeaker | |
| US12047733B1 (en) | Coaxial speaker | |
| US11470423B2 (en) | Speaker assembly and speaker | |
| WO2021063112A1 (en) | Bone conduction loudspeaker, bone conduction headphones and bone conduction hearing aid | |
| US9100733B2 (en) | Multi-way coaxial loudspeaker with internal magnet motor and permanent magnet cylinder | |
| CN201252635Y (en) | Double-frequency coaxial earphones with shared magnet | |
| US20110261992A1 (en) | Magnetic circuit unit and speaker using same | |
| CN213462312U (en) | Sound production device module | |
| CN215818594U (en) | Double voice coil moving coil unit | |
| CN206350127U (en) | Earphone with double rear operatic tunes | |
| KR20110000167A (en) | Micro speaker | |
| KR200462922Y1 (en) | Dual-Frequency Coaxial Earphone with Shared Magnet | |
| CN209120409U (en) | Earplug | |
| KR20090011590U (en) | Dual-Frequency Coaxial Earphone |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090513 |