WO2015109697A1 - 一种多振膜扬声器 - Google Patents
一种多振膜扬声器 Download PDFInfo
- Publication number
- WO2015109697A1 WO2015109697A1 PCT/CN2014/078096 CN2014078096W WO2015109697A1 WO 2015109697 A1 WO2015109697 A1 WO 2015109697A1 CN 2014078096 W CN2014078096 W CN 2014078096W WO 2015109697 A1 WO2015109697 A1 WO 2015109697A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- diaphragms
- diaphragm
- group
- inner connecting
- connecting rods
- Prior art date
Links
- 239000012528 membrane Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 238000009826 distribution Methods 0.000 abstract description 5
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 230000035515 penetration Effects 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
- H04R9/063—Loudspeakers using a plurality of acoustic drivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R11/00—Transducers of moving-armature or moving-core type
- H04R11/02—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/12—Non-planar diaphragms or cones
- H04R7/127—Non-planar diaphragms or cones dome-shaped
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/16—Mounting or tensioning of diaphragms or cones
- H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/025—Magnetic circuit
Definitions
- the present invention relates to the field of acoustic power technology, and more particularly to a multi-diaphragm speaker. Background technique
- the speaker plays an integral role in the sound system.
- the audio power passes through electromagnetic, piezoelectric or electrostatic effects, causing the cone or diaphragm to vibrate and resonate (resonate) with the surrounding air to make a sound. Therefore, it is with the appearance of the speakers that people can hear the beautiful sound.
- the diaphragm acts as a sounding component in the speaker, which must be light enough to ensure the sounding effect of the speaker.
- a plurality of diaphragms are usually used in one speaker, and the diaphragms are connected by a connecting rod to optimize the electroacoustic conversion.
- the connecting rod must penetrate the diaphragm to achieve the connection between the diaphragms, which will inevitably cause air leakage, which may cause sound distortion or noise. The sound quality appears, which further affects the sounding effect of the speaker. Summary of the invention
- the present invention provides a multi-diaphragm speaker to solve the problem of poor sound quality of a speaker due to air leakage.
- the present invention provides a multi-diaphragm speaker comprising at least four diaphragms, an inner connecting rod and an outer connecting rod;
- Connecting points are respectively arranged on the rigid intermediate shaft of the diaphragm;
- the inner connecting rod includes a long rod and a short rod; wherein, the diaphragm in the odd position is connected to the inner connecting rod through the connecting point, and then the inner connecting rod connecting all the diaphragms located in the odd position is connected through the outer connecting rod to form a first group of diaphragms; wherein the long rods and the short rods of the inner connecting rod are staggered in the first group of diaphragms; Connecting the diaphragm in the even position to the inner connecting rod through the connecting point, and then connecting the inner connecting rods connecting all the diaphragms in the even position through the outer connecting rod to form a second group of diaphragms; wherein, the inner connecting rod The long and short rods are staggered in the second group of diaphragms.
- the speaker of the present invention further comprises a magnetic circuit, wherein the first group of diaphragms and the second group of diaphragms respectively vibrate in the same direction under the driving of the corresponding magnetic circuit, and the first group of diaphragms and the second group of diaphragms The vibration direction is opposite.
- the number of the inner connecting rods is the same as the number of the diaphragms, and the number of the inner connecting rods connected to the same diaphragm is one or a pair.
- the number of the outer connecting members is two; when the number of the inner connecting rods connected to the same diaphragm is a pair, the outer connecting rods The number is two pairs.
- the long rod of the inner connecting rod is in the rigid intermediate shaft of the diaphragm
- the 1/4-1/2 area is connected to the diaphragm, and the short rod of the inner connecting rod is connected to the diaphragm in the 0 ⁇ 1/4 area of the rigid intermediate shaft of the diaphragm.
- the long rod of the inner connecting rod is connected to the diaphragm in a quarter-1/2 area of the rigid intermediate shaft of the diaphragm, and the short rod of the inner connecting rod is rigid in the diaphragm
- the 0 ⁇ 1/4 area of the intermediate shaft is connected to the diaphragm.
- the vibration directions of all the diaphragms in the first group of diaphragms are the same, and the vibration directions of all the diaphragms in the second group of diaphragms are the same.
- the vibration directions of all the diaphragms in the first group of diaphragms are opposite to the vibration directions of all the diaphragms in the second group of diaphragms.
- the respective diaphragms are connected by the inner connecting rod, and then the inner connecting rods are connected by the outer connecting rods, thereby realizing the connection of the respective diaphragms without penetrating the diaphragm, thereby avoiding The appearance of air leakage and poor sound quality enhances the sounding effect of the speaker.
- FIG. 1 is a front elevational view showing a planar structure of a multi-diaphragm speaker according to an embodiment of the present invention
- FIG. 2 is a schematic structural view of a connecting rod of a multi-diaphragm speaker according to an embodiment of the present invention
- FIG. 1 a magnetic circuit; 3; a diaphragm; 4. an outer connecting rod; 5, an inner connecting rod; 6. an outer casing; , front cavity sealing device; 21, first diaphragm; 22, second diaphragm; 23, third diaphragm; 24, fourth diaphragm; 25, long rod; 26, short rod; 27, connection point.
- the connecting rod needs to penetrate the diaphragm to realize the connection between the diaphragms, thereby causing the problem of air leakage.
- the invention connects the diaphragms through the inner connecting rods, and then connects the inner connecting rods through the outer connecting rods, thereby realizing the connection of the respective diaphragms without penetrating the diaphragm, avoiding air leakage and the occurrence of bad sound quality, and improving The sound effect of the speaker.
- Fig. 1 shows a planar structure of a multi-diaphragm speaker according to an embodiment of the present invention.
- the inner connecting rod 5 is connected to the diaphragm 3 by providing a connection point on the long axis of the rigid intermediate portion of the diaphragm 3, and then the respective diaphragms 3 to which the inner connecting rod 5 is connected are connected through the outer connecting rod 4 .
- the magnetic circuit 1 drives the rigid intermediate portion of the diaphragm to vibrate the diaphragm so that the speaker can emit sound.
- a plurality of diaphragms are used in one speaker to increase the radiation range of the speaker, so the diaphragms located at the odd and even positions are respectively connected through the outer connecting rod 4 to form two sets of diaphragms, and each The cavity formed between the diaphragms is sleeved with the outer casing 6 for sealing purposes.
- the front chamber sealing device 7 is added to separate the front and rear chambers of the speaker.
- the connection between the respective diaphragms 3 can be realized without penetrating the diaphragm 3 in the process of manufacturing the speaker, avoiding air leakage and poor sound quality. Appears to improve the sound of the speaker and reduce the difficulty of making the speaker.
- connection relationship between the various components and the components of the multi-diaphragm speaker provided by the present invention, and the connection between the components of the multi-diaphragm speaker provided by the present invention will be described in more detail below. relationship.
- the connecting rod 5 is provided with a long rod and a short rod; wherein the diaphragm 3 located at the odd position is connected to the inner connecting rod 5 through the connecting point, and then all the connected odd positions are connected through the outer connecting rod 4.
- the inner connecting rods 5 of the diaphragm 3 are connected to form a first group of diaphragms; wherein the long rods and the short rods of the inner connecting rod 5 are staggered in the first group of diaphragms. That is, all the diaphragms 3 connected to the odd-numbered positions of the inner connecting rods 5 are connected by the outer connecting rods 4 to form a first group of diaphragms; wherein the long rods and the short rods of the inner connecting rods 5 are at the first The distribution in the group diaphragm is interlaced.
- the diaphragm 3 located at an even position is connected to the inner connecting rod 5 through a connection point, and then the inner connecting rods 5 of all the diaphragms 3 connected in the even position are connected by the outer connecting rod 4 to form a second group of diaphragms;
- the long rods and the short rods of the inner connecting rod 5 are staggered in the second group of diaphragms 3 .
- the inner connecting rod 5 is placed on the diaphragm 3 Different positions of the rigid intermediate portion can effectively suppress the oscillation mode and the bending vibration mode of the diaphragm 3 or more.
- the long rod of the inner connecting rod 5 is connected to the diaphragm in a region of 1/4 to 1/2 of the long axis of the rigid intermediate portion of the diaphragm 3,
- the short rod of the inner connecting rod 5 is connected to the diaphragm 3 in the 0 to 1/4 region of the rigid intermediate shaft of the diaphragm to suppress the bending vibration of the diaphragm.
- the inner connecting rods connected to the same diaphragm 3 may be present separately or in pairs, and the number of the inner connecting rods 5 and the number of the diaphragms 3 appearing alone or in pairs are one.
- the outer connecting rod 4 is mainly used for connecting the inner connecting rod 5, it is possible to connect all the diaphragms 3 in the entire speaker. Therefore, the number of the outer connecting rods 4 is related to both the number of the inner connecting rods 5 and the number of sets of the diaphragms 3.
- the number of the inner connecting rods 5 coincides with the number of the diaphragms 3 used in the entire speaker, and the number of the inner connecting rods 5 connected to the same diaphragm 3 is one or a pair.
- the number of the outer connecting rods 4 is two; when the number of the inner connecting rods 5 connected to the same diaphragm 3 is a pair
- the number of outer connecting rods 4 is two pairs.
- the number of inner connecting rods 5 may be six or six.
- the outer connecting rod 4 needs to connect the long rod and the short rod of the inner connecting rod 5, when one inner connecting rod 5 connected to the same diaphragm 3 is used, the outer connecting rod 4 needs two;
- the inner connecting rods 5 connected to the same diaphragm 3 are paired, the outer connecting rods 4 also need to be paired, and since the number of the diaphragms 3 is two, the number of the outer connecting rods 4 needs to be two.
- the number of outer connecting rods 4 is related to both the number of inner connecting rods 5 and the number of sets of diaphragms 3.
- the number of sets of the diaphragm 3 is two, and the number of the outer connecting rods 4 should also be two or two pairs.
- the number of the inner connecting rods 5 connected to the same diaphragm is set to be a pair, which is more advantageous in that the diaphragm 3 is in an equilibrium state when vibrating.
- the first group of diaphragms and the second group of diaphragms are respectively driven in the same direction under the driving of the corresponding magnetic circuit 1, and the vibration directions of the first group of diaphragms and the second group of diaphragms are opposite.
- the vibration directions of all the diaphragms 3 in the first group of diaphragms are the same, the vibration directions of all the diaphragms 3 in the second group of diaphragms are uniform, and the vibrations of all the diaphragms 3 in the first group of diaphragms 3 are identical.
- the direction is opposite to the vibration direction of all the diaphragms 3 in the second diaphragm.
- all the diaphragms 3 in the first group of diaphragms are connected by the same set of outer connecting rods 4, so that the vibration directions are uniform.
- the second group of diaphragms vibrate downwards
- the second group of vibrates vibrate upwards.
- FIG. 2 shows the positional structure of the connecting rod of the multi-diaphragm speaker according to an embodiment of the present invention.
- the multi-diaphragm speaker provided by the present invention has at least four diaphragms, including a first diaphragm 21, a second diaphragm 22, a third diaphragm 23, and a fourth diaphragm 24, in the first Diaphragm 21, second vibration A connecting point is respectively disposed on a long axis of the rigid intermediate portion of the film 22, the third diaphragm 23 and the fourth diaphragm 24; the inner connecting rod includes a long rod 25 and a short rod 26; wherein the first diaphragm 21 passes through the joint point 27 is connected to the long rod 25, and the third diaphragm 23 is connected to the short rod 26 through the joint 27, and then the first diaphragm 21 and the third diaphragm 23 are connected by the outer connecting rod 4 to constitute a first group of diaphragms.
- the second diaphragm 22 is connected to the short rod 26 via a connection point 27, and the fourth diaphragm 24 is connected to the long rod 25 via a connection point 27, and then the second diaphragm 22 and the fourth diaphragm 24 are connected by the outer connecting rod 4. , forming a second group of diaphragms.
- the first diaphragm 21 is connected to the short rod 26 through the connection point 27, the third diaphragm 23 is connected to the long rod 25 through the joint 27, and then the first diaphragm 21 and the third diaphragm 23 are passed through the outer connecting rod 4. Connect to form the first set of diaphragms.
- the second diaphragm 22 is connected to the long rod 25 via a connection point 27, the fourth diaphragm 24 is connected to the short rod 26 via a connection point 27, and then the second diaphragm 22 and the fourth diaphragm 24 are connected by the outer connecting rod 4. , forming a second group of diaphragms.
- the first group of diaphragms and the second group of diaphragms can be vibrated by the magnetic circuit 1 to cause the speaker to emit sound.
- the diaphragm located in the odd position constitutes the first group of diaphragms through the inner connecting rod and the outer joint
- the diaphragm in the even position constitutes the second group diaphragm through the inner connecting rod and the outer connecting rod
- the distribution of the long and short rods of the inner connecting rod in the first group of diaphragms and the second group of diaphragms are interdigitated, and in the initial diaphragm of the first group of diaphragms and the second group of diaphragms, the inner connecting rod
- the distribution of the long and short rods is also interlaced.
- a plurality of diaphragms may be used in one speaker, and the number of diaphragms may be an even number or an odd number, in the above embodiment. Only four diaphragms are used as an example. Similarly, more diaphragms can be used in one speaker to widen the range of radiation from the speaker.
- a speaker with six diaphragms will be described below as an example.
- the six diaphragms are named as the first diaphragm, the second diaphragm, the third diaphragm, the fourth diaphragm, the fifth diaphragm, and the sixth diaphragm, respectively.
- connection points are respectively provided on the rigid intermediate shafts of the first diaphragm, the second diaphragm, the third diaphragm, the fourth diaphragm, the fifth diaphragm, and the sixth diaphragm.
- the inner connecting rod comprises a long rod and a short rod; wherein, the first diaphragm is connected to the long rod through a connection point, the third diaphragm is connected to the short rod through a connection point, and the fifth diaphragm is connected to the long rod through the connection point, and then passes through
- the outer connecting rod connects the first diaphragm, the third diaphragm and the fifth diaphragm to form a first group of diaphragms.
- the second diaphragm is connected to the short rod through the connection point, the fourth diaphragm is connected to the long rod through the connection point, the sixth diaphragm is connected to the short rod through the connection point, and then the second diaphragm and the fourth vibration are connected through the outer connecting rod
- the membrane and the sixth diaphragm are connected to form a second group of diaphragms.
- the multi-diaphragm speaker provided by the present invention connects the diaphragms through the inner connecting rods, and then connects the inner connecting rods through the outer connecting rods, thereby realizing the respective diaphragms without penetrating the diaphragm.
- the connection avoids air leakage and poor sound quality, improving the sound of the speaker.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Electromagnetism (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020167022262A KR101807272B1 (ko) | 2014-01-26 | 2014-05-22 | 다중 진동막 스피커 |
US15/114,051 US9936303B2 (en) | 2014-01-26 | 2014-05-22 | Multi-diaphragm speaker |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410037738.5A CN103781002B (zh) | 2014-01-26 | 2014-01-26 | 一种多振膜扬声器 |
CN201410037738.5 | 2014-01-26 |
Publications (1)
Publication Number | Publication Date |
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WO2015109697A1 true WO2015109697A1 (zh) | 2015-07-30 |
Family
ID=50572744
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2014/078096 WO2015109697A1 (zh) | 2014-01-26 | 2014-05-22 | 一种多振膜扬声器 |
Country Status (4)
Country | Link |
---|---|
US (1) | US9936303B2 (zh) |
KR (1) | KR101807272B1 (zh) |
CN (1) | CN103781002B (zh) |
WO (1) | WO2015109697A1 (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103781002B (zh) | 2014-01-26 | 2017-07-28 | 歌尔股份有限公司 | 一种多振膜扬声器 |
CN106604187A (zh) * | 2017-01-06 | 2017-04-26 | 苏州新吴光电科技有限公司 | 一种具有双振膜的受话器 |
CN112839270A (zh) * | 2019-11-22 | 2021-05-25 | 华为技术有限公司 | 扬声器模组及便携式电子设备 |
CN111405427B (zh) * | 2019-12-27 | 2021-07-09 | 瑞声科技(新加坡)有限公司 | 发声器件 |
KR200494337Y1 (ko) * | 2020-05-28 | 2021-09-16 | 양경호 | 마스크용 음성 전달장치 |
Citations (6)
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CN1977564A (zh) * | 2004-06-03 | 2007-06-06 | 迪芬尼公司 | 包括多个同轴布置的振动膜的声换能器 |
CN101656906A (zh) * | 2008-08-20 | 2010-02-24 | 财团法人工业技术研究院 | 扬声器单体结构 |
CN102469393A (zh) * | 2010-11-11 | 2012-05-23 | 仁宝电脑工业股份有限公司 | 扬声器 |
CN103297904A (zh) * | 2013-05-18 | 2013-09-11 | 歌尔声学股份有限公司 | 一种双振膜扬声器模组 |
CN203301728U (zh) * | 2013-05-18 | 2013-11-20 | 歌尔声学股份有限公司 | 一种双振膜扬声器模组 |
CN103781002A (zh) * | 2014-01-26 | 2014-05-07 | 歌尔声学股份有限公司 | 一种多振膜扬声器 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3636278A (en) * | 1969-02-19 | 1972-01-18 | Heil Scient Lab Inc | Acoustic transducer with a diaphragm forming a plurality of adjacent narrow air spaces open only at one side with the open sides of adjacent air spaces alternatingly facing in opposite directions |
US4039044A (en) * | 1974-11-25 | 1977-08-02 | Oskar Heil | Low frequency electro-acoustic transducer with interconnected diaphragms interleaved with fixed diaphragms |
US4107479A (en) * | 1976-09-03 | 1978-08-15 | Oskar Heil | Electro-acoustic transducer |
US8897472B2 (en) | 2004-06-03 | 2014-11-25 | Tymphany Hk Limited | Acoustic transducer comprising a plurality of coaxially arranged diaphragms |
CN203708480U (zh) * | 2014-01-26 | 2014-07-09 | 歌尔声学股份有限公司 | 一种多振膜扬声器 |
-
2014
- 2014-01-26 CN CN201410037738.5A patent/CN103781002B/zh active Active
- 2014-05-22 KR KR1020167022262A patent/KR101807272B1/ko active IP Right Grant
- 2014-05-22 US US15/114,051 patent/US9936303B2/en active Active
- 2014-05-22 WO PCT/CN2014/078096 patent/WO2015109697A1/zh active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN1977564A (zh) * | 2004-06-03 | 2007-06-06 | 迪芬尼公司 | 包括多个同轴布置的振动膜的声换能器 |
CN101656906A (zh) * | 2008-08-20 | 2010-02-24 | 财团法人工业技术研究院 | 扬声器单体结构 |
CN102469393A (zh) * | 2010-11-11 | 2012-05-23 | 仁宝电脑工业股份有限公司 | 扬声器 |
CN103297904A (zh) * | 2013-05-18 | 2013-09-11 | 歌尔声学股份有限公司 | 一种双振膜扬声器模组 |
CN203301728U (zh) * | 2013-05-18 | 2013-11-20 | 歌尔声学股份有限公司 | 一种双振膜扬声器模组 |
CN103781002A (zh) * | 2014-01-26 | 2014-05-07 | 歌尔声学股份有限公司 | 一种多振膜扬声器 |
Also Published As
Publication number | Publication date |
---|---|
KR101807272B1 (ko) | 2017-12-08 |
KR20160108518A (ko) | 2016-09-19 |
CN103781002B (zh) | 2017-07-28 |
US9936303B2 (en) | 2018-04-03 |
US20160345103A1 (en) | 2016-11-24 |
CN103781002A (zh) | 2014-05-07 |
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