CN204948303U - A kind of moving coil earphone - Google Patents
A kind of moving coil earphone Download PDFInfo
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- CN204948303U CN204948303U CN201520616772.8U CN201520616772U CN204948303U CN 204948303 U CN204948303 U CN 204948303U CN 201520616772 U CN201520616772 U CN 201520616772U CN 204948303 U CN204948303 U CN 204948303U
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- cavity
- loudspeaker
- back cavity
- moving coil
- coil earphone
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Abstract
The utility model discloses a kind of moving coil earphone, comprise ear cup, ear cup comprises loudspeaker and housing, loudspeaker are arranged in housing, wherein, also comprise two back cavity headphone acoustic system, two back cavity headphone acoustic system comprises the one-level back cavity and secondary back cavity that are connected, housing comprises plate and ear cup bonnet after loudspeaker cavity header board, loudspeaker cavity, one-level back cavity to be formed at after loudspeaker cavity header board and loudspeaker cavity between plate, secondary back cavity is formed at after loudspeaker cavity between plate and ear cup bonnet, and loudspeaker are arranged at one-level back cavity.Moving coil earphone of the present utility model has two back cavity headphone acoustic system, and low frequency operation frequency band can be allowed to widen, and harmonic distortion reduces, and overall frequency response is more smooth.
Description
Technical field
The utility model relates to a kind of earphone, specifically, relates to a kind of moving coil earphone with bass enhancing effect.
Background technology
At present, due to the restriction of size in conventional moving coil earphone, the lower-cut-off frequency of loudspeaker unit does not usually reach very low (such as below 100Hz), and low frequency range is because amplitude is comparatively large, and distortion also can be larger usually.
Application number be 201410341845.7 Chinese invention patent application disclose a kind of earphone of noise reduction, as shown in Figure 1, it is suitable for the ear 7 according to earpiece audio signal, voice output signal being provided to wearer, and be further adapted for the head 2 being arranged on wearer in operating position, thus the front chamber 5 between head 2 with earphone 1 is separated with surrounding space 6, earphone 1 comprises shell 3, ear pad 4, primary diaphragm 11 and secondary diaphragm 13.Shell 3 has shell wall 9, and shell wall 9 makes the rear chamber 10 with acoustic compliance be separated with front chamber 5 and be separated with surrounding space 6; Ear pad 4 is set to and is suitable for the decay when earphone 1 is in operating position from surrounding space 6, enter the voice signal of front chamber 5; Primary diaphragm 11, the first through hole crossed in the shell wall 9 between front chamber 5 and rear chamber 10 is reciprocally suspended and is suitable for actively driving to provide voice output signal at least partially; And secondary diaphragm 13, the second through hole crossed in the shell wall 9 between rear chamber 10 and surrounding space 6 is reciprocally suspended, thus makes secondary diaphragm 13 and rear chamber 10 be formed in the acoustic resonance system 10,13 of resonance frequency place acoustic resonance.As seen from Figure 1, although this earphone has noise reduction function, the program has rear chamber 10, still there is the problem that bass district amplitude is large, bass effect is bad.
Utility model content
The purpose of this utility model solves the bad problem of existing earphone bass effect, provides a kind of moving coil earphone, realizes bass strengthen effect by two back cavity headphone acoustic system.
To achieve these goals, moving coil earphone of the present utility model, comprise ear cup, described ear cup comprises loudspeaker and housing, described loudspeaker are arranged in described housing, wherein, also comprise two back cavity headphone acoustic system, described pair of back cavity headphone acoustic system comprises the one-level back cavity and secondary back cavity that are connected, described housing comprises loudspeaker cavity header board, plate and ear cup bonnet after loudspeaker cavity, described one-level back cavity to be formed at after described loudspeaker cavity header board and described loudspeaker cavity between plate, described secondary back cavity to be formed at after described loudspeaker cavity between plate and described ear cup bonnet, described loudspeaker are arranged at described one-level back cavity.
Above-mentioned moving coil earphone, wherein, is communicated with by a bassoon between described one-level back cavity and described secondary back cavity, and described bassoon to be connected to after described loudspeaker cavity on plate.
Above-mentioned moving coil earphone, wherein, described bassoon comprises first end and the second end, and described first end is concordant with plate after described loudspeaker cavity, and described the second end extends in described secondary back cavity.
Above-mentioned moving coil earphone, wherein, described loudspeaker cavity header board is provided with front damping hole, damping piece before described front damping hole arranges.
Above-mentioned moving coil earphone, wherein, after described loudspeaker cavity, plate is provided with rear damping hole, damping piece after described rear damping hole being arranged.
Above-mentioned moving coil earphone, wherein, described front damping piece and described rear damping piece are respectively acoustics screen cloth.
Above-mentioned moving coil earphone, wherein, described ear cup bonnet is provided with and lets out acoustic aperture, described in let out acoustic aperture and be communicated with described secondary back cavity and ambient atmosphere.
Above-mentioned moving coil earphone, wherein, described loudspeaker are connected on described loudspeaker cavity header board.
Above-mentioned moving coil earphone, wherein, the diameter of described loudspeaker is 6mm to 50mm.
Above-mentioned moving coil earphone, wherein, also comprises board structure of circuit part, and described board structure of circuit part is arranged at described secondary back cavity.
Beneficial functional of the present utility model is:
Earphone of the present utility model has two back cavity headphone acoustic system, and low frequency operation frequency band can be allowed to widen, and harmonic distortion reduces, and overall frequency response is more smooth.
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail, but not as to restriction of the present utility model.
Accompanying drawing explanation
Fig. 1 is the structural representation of the sound system of the earphone of prior art;
Fig. 2 is the structural representation of earphone of the present utility model;
Fig. 3 is the structural representation of the sound system of earphone of the present utility model.
Wherein, Reference numeral
1 earphone
2 heads
3 shells
4 ear pads
5 front chamber
6 surrounding spaces
7 ears
9 shell walls
10 rear chamber
11 primary diaphragms
13 secondary diaphragms
The utility model:
10 moving coil earphones
100 ear cups
110 loudspeaker
120 housings
130 loudspeaker cavity header boards
Damping hole before 131
Plate after 140 loudspeaker cavitys
Damping hole after 141
150 ear cup bonnets
151 let out acoustic aperture
160 pairs of back cavity headphone acoustic systems
161 one-level back cavities
162 secondary back cavities
170 bassoons
171 first ends
172 the second ends
180 board structure of circuit parts
20 ante-chambers
30 ear pads
Embodiment
Below in conjunction with the drawings and specific embodiments, technical solutions of the utility model are described in detail, further to understand the purpose of this utility model, scheme and effect, but not as the restriction of the utility model claims protection range.
As shown in Figures 2 and 3, moving coil earphone 10 of the present utility model comprises ear cup 100, and during use, moving coil earphone 10 is worn on the head of user, and makes ear cup 100 be enclosed within the ear of user, delivers to the ear of user with the sound provided by earphone 10.
As shown in Figure 3, the ear cup 100 of moving coil earphone 10 comprises loudspeaker 110 and housing 120, and loudspeaker 110 are arranged in housing 120.
Housing 120 comprises plate 140 and ear cup bonnet 150 after loudspeaker cavity header board 130, loudspeaker cavity.Moving coil earphone 10 of the present utility model adopts two back cavity headphone acoustic system 160, two back cavity headphone acoustic system 160 comprises the one-level back cavity 161 and secondary back cavity 162 that are connected, wherein, one-level back cavity 161 is formed at after loudspeaker cavity header board 130 and loudspeaker cavity between plate 140, and secondary back cavity 162 to be formed at after loudspeaker cavity between plate 140 and ear cup bonnet 150.
Loudspeaker 110 are arranged at one-level back cavity 161 and exist, and are connected on loudspeaker cavity header board 130.Ear, the ear pad 30 of user form ante-chamber 20 with loudspeaker cavity header board 130.
Be connected by bassoon (basstube) 170 between one-level back cavity 161 and secondary back cavity 162, bassoon 170 to be connected to after loudspeaker cavity on plate 140.Bassoon 170 comprises first end 171 and the second end 172, and first end 171 is concordant with plate 140 after loudspeaker cavity, and the second end 172 extends in secondary back cavity 162.
Moving coil earphone 10 of the present invention have employed two damping regulating system simultaneously, be respectively front damping system and rear damping system, front damping system is arranged between ante-chamber 20 and one-level back cavity 161, rear damping system is arranged between one-level back cavity 161 and secondary back cavity 162, responds in order to regulate medium-high frequency band frequency.
Particularly, as shown in Figure 3, loudspeaker cavity header board 130 is provided with front damping hole 131, damping piece before front damping hole 131 arranges.Damping system before front damping hole 131 and front damping piece are formed.
Plate 140 is provided with rear damping hole 141 after loudspeaker cavity, damping piece after rear damping hole 141 being arranged.Damping system after rear damping hole 141 and rear damping piece are formed.
Wherein, front damping piece, rear damping piece are respectively voicing screen cloth.The specification of acoustics screen cloth and the size of damping hole area will be chosen according to loudspeaker harmony cavity volume etc.Front damping hole 131 is used for regulating the intermediate frequency of below 1000Hz and Frequency response curve, rear damping hole 141 be used for level and smooth pipe and back cavity resonance and regulate the sensitivity of below 500Hz.
Ear cup bonnet 150 is provided with and lets out acoustic aperture 151, let out acoustic aperture 151 and be communicated with secondary back cavity 162 and ambient atmosphere.
Separately, moving coil earphone 10 of the present utility model also comprises board structure of circuit part 180, and board structure of circuit part 180 is arranged in secondary back cavity 162, and it can be connected to after loudspeaker cavity on plate 140.
In the utility model, one-level back cavity 161 is pure acoustics cavity and is main sound back cavity, and secondary back cavity 162 is auxiliary chamber, wherein can place board structure of circuit part 180 etc.In this design, one-level back cavity 161 is very easy to accomplish that left and right ear is very consistent, even if the board structure of circuit part 180 that secondary back cavity 162 is put, such as electronics and mechanism member are slightly asymmetric, also substantially can not affect the degree of balance of left and right ear.
Therefore, even the secondary back cavity 162 in the utility model the degree of balance that the earphone (as bluetooth ANC earphone) that can ensure complexity also can ensure left and right ear is set.
The method for designing of of the present utility model pair of back cavity headphone acoustic system 160 is applicable to the semi open model of all size and enclosed moving coil earphone.The diameter of the loudspeaker 110 of moving coil earphone 10 is 6mm to 50mm.
Moving coil earphone 10 can be wired earphone or wireless headset.
Two back cavity headphone acoustic system 160 designs that the utility model describes adopt bassoon 170, coordinate two-stage back cavity and two damping regulating system, bass can be strengthened, about lower-cut-off frequency is reduced to original half, reduce low-frequency distortion, and better regulate medium-high frequency, to reach the sense of hearing of more flat frequency response curve and more natural equilibrium by two damping system.
Certainly; the utility model also can have other various embodiments; when not deviating from the utility model spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the utility model, but these change accordingly and are out of shape the protection range that all should belong to the claim appended by the utility model.
Claims (11)
1. a moving coil earphone, comprise ear cup, described ear cup comprises loudspeaker and housing, described loudspeaker are arranged in described housing, it is characterized in that, also comprise two back cavity headphone acoustic system, described pair of back cavity headphone acoustic system comprises the one-level back cavity and secondary back cavity that are connected, described housing comprises loudspeaker cavity header board, plate and ear cup bonnet after loudspeaker cavity, described one-level back cavity to be formed at after described loudspeaker cavity header board and described loudspeaker cavity between plate, described secondary back cavity to be formed at after described loudspeaker cavity between plate and described ear cup bonnet, described loudspeaker are arranged at described one-level back cavity.
2. moving coil earphone according to claim 1, is characterized in that, is communicated with between described one-level back cavity and described secondary back cavity by a bassoon, and described bassoon to be connected to after described loudspeaker cavity on plate.
3. moving coil earphone according to claim 2, is characterized in that, described bassoon comprises first end and the second end, and described first end is concordant with plate after described loudspeaker cavity, and described the second end extends in described secondary back cavity.
4. moving coil earphone according to claim 1, is characterized in that, described loudspeaker cavity header board is provided with front damping hole, damping piece before described front damping hole arranges.
5. moving coil earphone according to claim 4, is characterized in that, described front damping piece is acoustics screen cloth.
6. moving coil earphone according to claim 1, is characterized in that, after described loudspeaker cavity, plate is provided with rear damping hole, damping piece after described rear damping hole being arranged.
7. moving coil earphone according to claim 6, is characterized in that, described rear damping piece is acoustics screen cloth.
8. the moving coil earphone according to any one of claim 1 to 7, is characterized in that, described ear cup bonnet is provided with and lets out acoustic aperture, described in let out acoustic aperture and be communicated with described secondary back cavity and ambient atmosphere.
9. the moving coil earphone according to any one of claim 1 to 7, is characterized in that, described loudspeaker are connected on described loudspeaker cavity header board.
10. the moving coil earphone according to any one of claim 1 to 7, is characterized in that, the diameter of described loudspeaker is 6mm to 50mm.
11. moving coil earphones according to any one of claim 1 to 7, it is characterized in that, also comprise board structure of circuit part, described board structure of circuit part is arranged at described secondary back cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520616772.8U CN204948303U (en) | 2015-08-14 | 2015-08-14 | A kind of moving coil earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520616772.8U CN204948303U (en) | 2015-08-14 | 2015-08-14 | A kind of moving coil earphone |
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| Publication Number | Publication Date |
|---|---|
| CN204948303U true CN204948303U (en) | 2016-01-06 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520616772.8U Active CN204948303U (en) | 2015-08-14 | 2015-08-14 | A kind of moving coil earphone |
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| CN (1) | CN204948303U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106162407A (en) * | 2016-08-12 | 2016-11-23 | 歌尔股份有限公司 | Headset earpiece and earphone |
| WO2019109389A1 (en) * | 2017-12-07 | 2019-06-13 | 歌尔科技有限公司 | Noise reduction earmuffs |
| CN112312257A (en) * | 2020-09-08 | 2021-02-02 | 深圳市逸音科技有限公司 | Intelligent 3D earphone of making an uproar falls in initiative digit |
| CN112312259A (en) * | 2020-09-08 | 2021-02-02 | 深圳市逸音科技有限公司 | Intelligent earphone capable of suppressing environmental noise |
| CN112584265A (en) * | 2019-09-27 | 2021-03-30 | 华为技术有限公司 | Earphone set |
-
2015
- 2015-08-14 CN CN201520616772.8U patent/CN204948303U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106162407A (en) * | 2016-08-12 | 2016-11-23 | 歌尔股份有限公司 | Headset earpiece and earphone |
| WO2019109389A1 (en) * | 2017-12-07 | 2019-06-13 | 歌尔科技有限公司 | Noise reduction earmuffs |
| US11141315B2 (en) | 2017-12-07 | 2021-10-12 | Goertek Tehnology Co., Ltd. | Noise-reducing earmuff |
| CN112584265A (en) * | 2019-09-27 | 2021-03-30 | 华为技术有限公司 | Earphone set |
| CN112312257A (en) * | 2020-09-08 | 2021-02-02 | 深圳市逸音科技有限公司 | Intelligent 3D earphone of making an uproar falls in initiative digit |
| CN112312259A (en) * | 2020-09-08 | 2021-02-02 | 深圳市逸音科技有限公司 | Intelligent earphone capable of suppressing environmental noise |
| CN112312259B (en) * | 2020-09-08 | 2023-03-14 | 深圳市逸音科技有限公司 | Intelligent earphone capable of suppressing environmental noise |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Floor 4, building 1, No. 5, changnanyuan Road, Changnan Industrial Park, qingyunbu District, Nanchang City, Jiangxi Province Co-patentee after: FENGFAN (SUZHOU) AUDIO TECHNOLOGY Co.,Ltd. Patentee after: Jiangxi Feier Technology Co., Ltd Address before: 100016, room 7598, building 7, South 1 village, Northeast Village, Beijing, Haidian District Co-patentee before: FENGFAN (SUZHOU) AUDIO TECHNOLOGY Co.,Ltd. Patentee before: FENGFAN (BEIJING) TECHNOLOGY Co.,Ltd. |