WO2024045236A1 - 发声器件 - Google Patents
发声器件 Download PDFInfo
- Publication number
- WO2024045236A1 WO2024045236A1 PCT/CN2022/120190 CN2022120190W WO2024045236A1 WO 2024045236 A1 WO2024045236 A1 WO 2024045236A1 CN 2022120190 W CN2022120190 W CN 2022120190W WO 2024045236 A1 WO2024045236 A1 WO 2024045236A1
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- WO
- WIPO (PCT)
- Prior art keywords
- diaphragm
- sound
- fixed
- voice coil
- magnetic
- Prior art date
Links
- 238000004891 communication Methods 0.000 claims abstract description 41
- 230000002093 peripheral effect Effects 0.000 claims description 25
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 230000009977 dual effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000005236 sound signal 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
- H04R9/02—Details
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
Definitions
- the utility model relates to the field of electroacoustic conversion, and in particular to a sound-generating device used in portable electronic products.
- sound-generating devices are mainly used to transmit electrical signals into sound signals.
- the sound-generating device of the related art includes a basin frame, a vibration system fixed on the basin frame, and a magnetic circuit system with a magnetic gap.
- the vibration system includes a diaphragm fixed on the basin frame for vibrating sound, and is inserted into the basin frame.
- the magnetic gap drives the voice coil to vibrate the diaphragm.
- the purpose of the utility model is to provide a sound-generating device with good working safety of the voice coil, easy improvement of low-frequency performance and good user experience.
- the present utility model provides a sound-generating device, which includes:
- a first vibration system the first vibration system includes a first diaphragm fixed on the basin frame and a first voice coil that drives the first diaphragm to vibrate and produce sound;
- the magnetic circuit system is fixed to the basin frame, the magnetic circuit system is provided with a first magnetic gap and a second magnetic gap at intervals on one side close to the first vibration system, the first magnetic gap Set around the second magnetic gap; the first voice coil is inserted in the first magnetic gap;
- a cover body, the cover body is fixed on the first diaphragm, and the basin frame, the first vibration system, the magnetic circuit system and the cover body together form a sound-generating inner cavity;
- the second vibration system is located in the sound-generating inner cavity and includes a second diaphragm fixedly supported on the side of the magnetic circuit system close to the first diaphragm and driving the second diaphragm. a second voice coil that vibrates the membrane and produces sound, and the second voice coil is inserted in the second magnetic gap;
- a support ring which is located in the sound-generating inner cavity and fixed to the first diaphragm, the second diaphragm and the magnetic circuit system respectively.
- the support ring includes a support ring body and a penetrating ring.
- the communication hole of the support ring body is connected with the sound-generating inner cavity.
- the outer peripheral side of the second diaphragm is fixed in the communication hole.
- the airflow generated by the vibration of the first diaphragm passes through the communication hole.
- the communication hole of the support ring pushes the second diaphragm; and,
- the insert is located below the second diaphragm.
- the insert is provided with a pressure relief hole passing through it. The airflow generated by the vibration of the second diaphragm is transmitted to the outside through the pressure relief hole.
- the communication hole includes a first communication hole relatively penetratingly formed on one side of the support ring body and a second communication hole relatively penetratingly formed on the other side of the support ring body.
- the magnetic circuit system includes a magnetic yoke fixed on the basin frame, an extension protruding from the magnetic yoke in the direction of the second vibration system, and an extension fixed on the magnetic yoke and surrounding the extension.
- the first auxiliary magnet is spaced to form the second magnetic gap
- the first auxiliary magnet is fixed to the yoke and surrounds the first auxiliary magnet and is spaced from the first auxiliary magnet to form the first magnetic gap.
- the second auxiliary magnet steel; the outer peripheral edge of the second diaphragm is supported and fixed on the support ring.
- the first diaphragm includes an annular first folding ring, an annular second folding ring spaced inside the first folding ring, and connecting the first folding ring and the third folding ring.
- the peripheral side is fixed to the top surface of the support ring, the first voice coil is fixed to the side of the frame close to the magnetic circuit system; the cover presses the inner peripheral side of the second folding ring on the support ring, and the cover body and the second diaphragm are spaced apart directly along the vibration direction of the second diaphragm; the other end of the frame is connected to the first voice coil to connect the The first voice coil is suspended in the first magnetic gap.
- the first vibration system further includes an auxiliary diaphragm fixed to the basin frame, and the auxiliary diaphragm is connected to the frame.
- the second diaphragm includes a second vibrating part spaced apart from the extension part along its vibration direction, an annular third ring extending outward from the periphery of the second vibrating part, and a The outer peripheral side of the third folding ring extends and is fixed to the fixing part of the support ring; the second voice coil is fixed to the side of the second vibrating part close to the magnetic circuit system.
- the magnetic circuit system further includes a first pole core fixed on the side of the first auxiliary magnet near the first vibration system and a first pole core fixed on the side of the second auxiliary magnet near the first vibration system.
- the second pole core fixed on the side of the first auxiliary magnet near the first vibration system and a first pole core fixed on the side of the second auxiliary magnet near the first vibration system.
- the magnetic circuit system further includes a mounting hole that penetrates the extension part and the yoke along the vibration direction of the second diaphragm; the sound-generating device further includes an insert assembled in the mounting hole. , the insert is electrically connected to the first voice coil, and is used to provide a driving signal for the first voice coil.
- the insert includes an insert body received in the mounting hole, an insert support wall extending outwardly from the top end of the insert body, and an insert support wall extending from the bottom end of the insert body to Conductive terminals outside the sound-generating inner cavity; the insert support wall is supported and fixed on the top of the extension; the first voice coil and the second voice coil are electrically connected to the insert body respectively.
- a leakage hole is formed between the basin frame and the magnetic yoke, and the sound-generating device further includes a housing fixed on the outer peripheral side of the magnetic yoke, and the housing extends to be fixed on the basin frame.
- the sound-generating device of the present invention uses a magnetic circuit system to achieve a push-pull structure in which the outer and inner dual vibration systems vibrate in the same direction to improve the low-frequency frequency response; by fixing the magnetic circuit system on Basin frame, the side of the magnetic circuit system close to the first vibration system is provided with a first magnetic gap and a second magnetic gap at intervals, the first magnetic gap is arranged around the second magnetic gap; the first voice coil is inserted in the first magnetic gap ; The basin frame, the first vibration system, the magnetic circuit system and the cover together form a sound-producing inner cavity; by placing the second vibration system in the sound-producing inner cavity, it includes a fixed support on the side of the magnetic circuit system close to the first diaphragm.
- the second diaphragm and the second voice coil drive the second diaphragm to vibrate and produce sound.
- the second voice coil is inserted in the second magnetic gap; the support ring is arranged between the first vibration system and the second vibration system, and the support ring It includes a support ring body and a communication hole that penetrates the support ring body. The communication hole is connected with the sound-generating inner cavity.
- the outer peripheral side of the second diaphragm is fixed in the communication hole; the air flow generated by the vibration of the first diaphragm passes through the communication hole of the support ring and is pushed
- the second diaphragm; the insert is located below the second diaphragm, and the insert is provided with a pressure relief hole running through it.
- the airflow generated by the vibration of the second diaphragm is transmitted to the outside world through the pressure relief hole; in this way, a push-pull structure is used to dual-tone
- the coil driver can disperse the power, solve the PA voltage output limitation and the risk of excessive voice coil temperature, improve low-frequency performance, and provide a good user experience.
- Figure 1 is a schematic three-dimensional structural diagram of the sound-generating device of the present invention.
- Figure 2 is an exploded view of the three-dimensional structure of the sound-generating device of the present invention.
- Figure 3 is a cross-sectional view along line A-A in Figure 1;
- Figure 4 is a schematic structural diagram of the support ring of the present invention.
- the present utility model provides a sound-generating device 100.
- the sound-generating device 100 includes a basin frame 1, a first vibration system 2, a magnetic circuit system 3, a second vibration system 4, an insert 5 and Cover 38.
- the basin frame 1 is used to support and fix the first vibration system 2, the second vibration system 4, the magnetic circuit system 3 and the insert 5.
- the first vibration system 2 includes a first diaphragm 21 fixed on the basket 1 and a first voice coil 22 that drives the first diaphragm 21 to vibrate and produce sound.
- the magnetic circuit system 3 is fixed to the basin frame 1.
- a first magnetic gap 6 and a second magnetic gap 7 are provided at intervals on the side of the magnetic circuit system 3 close to the first vibration system 2.
- the first magnetic gap 6 and the second magnetic gap 7 are spaced apart.
- the magnetic gap 6 is arranged around the second magnetic gap 7 ; the first voice coil 22 is inserted in the first magnetic gap 6 .
- the cover 38 is fixed on the first diaphragm 21 , and the basin frame 1 , the first vibration system 2 , the magnetic circuit system 3 and the cover 38 together form a sound-generating inner cavity 10 .
- the cover 38 is disposed on the inner peripheral side of the first diaphragm 21 .
- the second vibration system 4 is located in the sound-generating inner cavity 10.
- the second vibration system 4 includes a second diaphragm 41 supported on the side of the magnetic circuit system 3 close to the first diaphragm 21 and a driver.
- the second diaphragm 41 vibrates a second voice coil 42 that generates sound.
- the second voice coil 42 is inserted in the second magnetic gap 7 .
- the vibration directions of the first vibration system 2 and the second vibration system 4 are the same, and the vibration amplitude of the first diaphragm 21 of the first vibration system 2 is greater than the vibration amplitude of the second diaphragm 41 of the second vibration system 4 .
- the cross-sectional area of the first voice coil 22 is larger than the cross-sectional area of the second voice coil 42 .
- the driving force of the first voice coil 22 is greater than the driving force of the second voice coil 42, forming a dual voice coil co-directional driving structure.
- the push-pull structure dual voice coil driving can disperse the power.
- the support ring 37 is located in the sound-generating inner cavity 10 and is fixed to the first diaphragm 21, the second diaphragm 41 and the magnetic circuit system 2 respectively.
- the support ring 37 It includes a support ring body 371 and a communication hole 373 penetrating the support ring body 371.
- the communication hole 373 is connected with the sound-generating inner cavity 10, and the outer peripheral side of the second diaphragm 41 is fixed in the communication hole 373.
- the air flow generated by the vibration of the first diaphragm 21 passes through the communication hole 373 of the support ring 37 and pushes the second diaphragm 41 .
- the insert 5 is located below the second diaphragm 21.
- the insert 5 is provided with a pressure relief hole 52 passing through it.
- the airflow generated by the vibration of the second diaphragm 41 is transmitted through the pressure relief hole 52. to the outside world. It is convenient for the air in the inner cavity 10 of sound generation to be sequentially transmitted from the first magnetic gap 6 and the communication hole 373 to the cavity between the cover 38 and the first diaphragm 21, and is blocked by the cover 38 covering the first diaphragm 21.
- the opposite direction of the vibration direction pushes the second diaphragm 41, so that the air flow generated by the vibration of the second diaphragm 41 is transmitted from the pressure relief hole 52 to the outside world.
- the push-pull structure dual voice coil driver can be used to disperse the power and solve the problem. PA voltage output limitation and the risk of excessive voice coil temperature improve low-frequency performance and provide good user experience.
- the support ring 37 further includes a boss 372 extending from the support ring body 371 toward the second diaphragm 41 , and the outer peripheral side of the second diaphragm 41 is supported and fixed on the second diaphragm 41 .
- boss 272 By placing the outer peripheral side of the second diaphragm 41 on the boss 272 and fixing it with the communication hole 37 , the fixing effect of the second diaphragm 41 is good.
- the communication hole 373 includes a first communication hole 3731 formed on one side of the support ring body 371 and a second communication hole 3732 formed on the other side of the support ring body 371 .
- the first communication holes 3731 include two
- the second communication holes 3732 include two.
- the support ring body 371 has a rectangular structure, with two first communication holes 3731 spaced apart on its opposite short sides, and two second communication holes 3732 spaced apart on its opposite long sides.
- the two first communication holes 3731 and the two second communication holes 3732 are connected with the sound-generating inner cavity 100 to allow the air in the sound-generating inner cavity to flow through the first communication holes 3731 and the second communication holes 3732 to the cover 38 and the third communication hole 3732 .
- the power can be dispersed to solve the PA voltage output limitation and the risk of excessive voice coil temperature. At the same time, it can improve the low-frequency performance and provide a good user experience.
- the magnetic circuit system 3 includes a magnetic yoke 31 , an extension portion 32 extending from the magnetic yoke 31 toward the second vibration system 4 , and is fixed to the magnetic yoke 31 and surrounds the second vibration system 4 .
- the extension portion 32 is spaced apart from the first auxiliary magnet 33 that forms the second magnetic gap 7, and is fixed to the yoke 31, surrounds the first auxiliary magnet 33, and is spaced apart from the first auxiliary magnet 33.
- the second auxiliary magnetic steel 34 forming the first magnetic gap 6; the outer peripheral edge of the second diaphragm 41 is supported and fixed to the support ring 37.
- the magnetic field generated between the extension part 32 and the first auxiliary magnet 33 and the second auxiliary magnet 34 acts on the second voice coil 42 and the first voice coil 22 respectively, thereby increasing the sound generation performance of the voice coil.
- the first diaphragm 21 includes an annular first folding ring 211 fixed to the basin frame 1 , and annular second annular folding rings arranged at intervals inside the first folding ring 211 .
- the outer peripheral side of the first folding ring 211 is fixed to In the basket 1,
- the inner peripheral side of the second folding ring 212 is fixed on the top surface of the support ring 37, and the first voice coil 22 is fixed on a side of the frame 213 close to the magnetic circuit system 3.
- the cover 38 presses the inner peripheral side of the second folding ring 212 against the support ring 37 , and the cover 38 and the second diaphragm 41 are arranged along the second diaphragm 41
- the vibration direction is opposite to the interval.
- the first vibration system 2 further includes an auxiliary diaphragm 23 of the basin frame 1 , and the auxiliary diaphragm 23 is connected to the frame 213 .
- the vibration performance of the first diaphragm 21 is improved.
- the second diaphragm 41 includes a second vibrating part 412 spaced apart from the extension part 32 along its vibration direction, and an annular third fold extending outward from the periphery of the second vibrating part 412 .
- ring 411, and a fixing part 413 extending from the outer peripheral side of the third folding ring 411 and fixed to the support ring 37;
- the second voice coil 42 is fixed to the second vibrating part 412 close to the magnetic circuit System 3 side.
- the second diaphragm 41 is arranged facing the cover 38 to achieve a push-pull structure dual voice coil drive, which can disperse the power, solve the PA voltage output limit and the risk of excessive voice coil temperature, and at the same time improve low-frequency performance. .
- the magnetic circuit system 3 also includes a first pole core 35 fixed on the side of the first auxiliary magnet 33 close to the first vibration system 2 and a first pole core 35 fixed on the side of the second auxiliary magnet 34 close to the first vibration system 2.
- the second pole core 36 on one side of the first vibration system 2.
- the first pole core 35 and the second pole core 36 are used to increase the magnetism of the first auxiliary magnet 33 and the second auxiliary magnet 34 respectively.
- the support ring body 371 is supported on the first pole core 35 .
- the magnetic circuit system 3 also includes a mounting hole 39 that penetrates the extension part 32 and the yoke 31 along the vibration direction of the second diaphragm 41; the sound-generating device 100 also includes a
- the insert 5 in the mounting hole 39 is electrically connected to the first voice coil 22 to provide a driving signal to the first voice coil 22 .
- the insert 5 is installed through the mounting hole 39, and the fixing effect is good.
- the insert 5 is provided between the first diaphragm 21 and the auxiliary diaphragm 23 .
- the extension portion 32 extends from the yoke 31 toward the second vibration system 4 to form an annular protrusion (not shown), and a mounting hole 39 is formed through the middle of the annular protrusion.
- the mounting hole 39 is used to place the insert 5 .
- the extension 32 can also be solid and have strong magnetic capability.
- the insert 5 includes an insert body 51 received in the mounting hole 39 , an insert support wall 53 extending outwardly from the top end of the insert body 51 , and an insert support wall 53 formed by the insert body 51 .
- the bottom end of the component body 51 extends to the conductive terminal 54 outside the sound-generating cavity 10 .
- the insert support wall 53 is supported and fixed on the top of the extension part 32 , so that the insert support wall 53 and the extension part 32 are well fixed, so that the insert body 51 is stably installed in the extension part 32 .
- the first voice coil 22 and the second voice coil 42 are electrically connected to the insert body 51 respectively. It is convenient to provide electric energy to drive the first voice coil 22 and the second voice coil 42 respectively.
- the pressure relief hole 52 is formed through the insert body 51 and has a good pressure relief effect.
- a leakage hole 8 is formed between the basin frame 1 and the magnetic yoke 31 .
- the sound-generating device 100 further includes a housing 9 fixed on the outer peripheral side of the magnetic yoke 31 .
- the housing 9 Extend to be fixed on the basin frame 1 . It is convenient for the sound-generating device to relieve pressure and the acoustic performance is better.
- the sound-generating device of the present invention uses a magnetic circuit system to achieve a push-pull structure in which the outer and inner dual vibration systems vibrate in the same direction to improve the low-frequency frequency response; by fixing the magnetic circuit system on Basin frame, the side of the magnetic circuit system close to the first vibration system is provided with a first magnetic gap and a second magnetic gap at intervals, the first magnetic gap is arranged around the second magnetic gap; the first voice coil is inserted in the first magnetic gap ; The basin frame, the first vibration system, the magnetic circuit system and the cover together form a sound-producing inner cavity; by placing the second vibration system in the sound-producing inner cavity, it includes a fixed support on the side of the magnetic circuit system close to the first diaphragm.
- the second diaphragm and the second voice coil drive the second diaphragm to vibrate and produce sound.
- the second voice coil is inserted in the second magnetic gap; the support ring is arranged between the first vibration system and the second vibration system, and the support ring It includes a support ring body and a communication hole that penetrates the support ring body. The communication hole is connected with the sound-generating inner cavity.
- the outer peripheral side of the second diaphragm is fixed in the communication hole; the air flow generated by the vibration of the first diaphragm passes through the communication hole of the support ring and is pushed
- the second diaphragm; the insert is located below the second diaphragm, and the insert is provided with a pressure relief hole running through it.
- the airflow generated by the vibration of the second diaphragm is transmitted to the outside world through the pressure relief hole; in this way, a push-pull structure is used to dual-tone
- the coil driver can disperse the power, solve the PA voltage output limitation and the risk of excessive voice coil temperature, improve low-frequency performance, and provide a good user experience.
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
本实用新型提供了一种发声器件，发声器件包括：盆架；第一振动系统，第一振动系统包括第一振膜和第一音圈；磁路系统，磁路系统间隔设置有第一磁间隙和第二磁间隙；第一音圈插设于第一磁间隙内；盖体，盆架、第一振动系统、磁路系统和盖体共同围成发声内腔，第二振动系统，第二振动系统位于发声内腔内，其包括第二振膜和第二音圈，第二音圈插设于第二磁间隙内，支撑环以及嵌件，支撑环的连通孔与发声内腔连通，第一振膜振动产生的气流穿过支撑环的连通孔推动第二振膜；嵌件位于第二振膜下方，嵌件设有贯穿其上的泄压孔，第二振膜振动产生的气流自泄压孔传输至外界。与相关技术相比，本实用新型的发声器件便于提升低频性能且用户体验效果好。
Description
本实用新型涉及电声转换领域，尤其涉及一种运用于便携式电子产品的发声器件。
发声器件作为手机等移动终端的主要元器件之一，其主要用于将电信号传换成声音信号。
相关技术的发声器件包括盆架、固定于所述盆架的振动系统和具有磁间隙的磁路系统，所述振动系统包括固定于所述盆架用于振动发声的振膜，插设于所述磁间隙以驱动所述振膜振动的音圈。
然而，相关技术的发声器件中，用于振动发声的振膜为一个，针对单一振膜使用单音圈结构。在小腔体应用环境中，传统单音圈结构提升低频需要大功率驱动，受限于高电压PA以及音圈温度超高风险很难实现，使得音圈驱动将功率集中，导致PA电压输出限制以及音圈温度过高等风险，不能提升低频性能，用户体验效果欠佳。
因此，实有必要提供一种新的发声器件解决上述技术问题。
本实用新型的目的在于提供一种音圈工作安全性好、便于提升低频性能且用户体验效果好的发声器件。
为了达到上述目的，本实用新型提供了一种发声器件，所述发声器件包括：
盆架；
第一振动系统，所述第一振动系统包括固定于所述盆架的第一振膜以及驱动所述第一振膜振动发声的第一音圈；
磁路系统，所述磁路系统固定于所述盆架，所述磁路系统靠近所述第一振动系统的一侧间隔设置有第一磁间隙和第二磁间隙，所述第一磁间隙环绕所述第二磁间隙设置；所述第一音圈插设于所述第一磁间隙内；
盖体，所述盖体固定于所述第一振膜上，所述盆架、所述第一振动系统、所述磁路系统和所述盖体共同围成发声内腔；
第二振动系统，所述第二振动系统位于所述发声内腔内，其包括固定支撑于所述磁路系统靠近所述第一振膜一侧的第二振膜以及驱动所述第二振膜振动发声的第二音圈，所述第二音圈插设于所述第二磁间隙内；
支撑环，所述支撑环位于所述发声内腔内，且分别固定于所述第一振膜、所述第二振膜和所述磁路系统，所述支撑环包括支撑环本体和贯穿所述支撑环本体的连通孔，所述连通孔与所述发声内腔连通，所述第二振膜的外周侧固定于所述连通孔内，所述第一振膜振动产生的气流穿过所述支撑环的连通孔推动所述第二振膜；以及，
嵌件，所述嵌件位于所述第二振膜下方，所述嵌件设有贯穿其上的泄压孔，所述第二振膜振动产生的气流自所述泄压孔传输至外界。
优选的，所述连通孔包括相对贯穿形成于所述支撑环本体一侧的第一连通孔和相对贯穿形成于所述支撑环本体另一侧的第二连通孔。
优选的，所述磁路系统包括固定于所述盆架的磁轭、由所述磁轭向所述第二振动系统方向凸出延伸的延伸部、固定于所述磁轭且环绕所述延伸部间隔形成所述第二磁间隙的第一副磁钢、以及固定于所述磁轭且环绕所述第一副磁钢并与所述第一副磁钢间隔形成所述第一磁间隙的第二副磁钢；所述第二振膜的外周缘支撑固定于所述支撑环。
优选的，所述第一振膜包括呈环状的第一折环、间隔设置于所述第一折环内侧且呈环状的第二折环、连接所述第一折环和所述第二折环的呈环状的骨架、以及固定于所述骨架的呈环状的第一球顶；所述第一折环的外周侧固定于所述盆架，所述第二折环的内周侧固定于所述支撑环的顶面，所述第一音圈固定于所述骨架靠近所述磁路系统的一侧；所述盖体将所述第二折环的内周侧压设于所述支撑环，且所述盖体与所述第二振膜沿所述第二振膜的振动方向正对间隔；所述骨架的另一端与所述第一音圈连接以将所述第一音圈悬置于所述第一磁间隙内。
优选的，所述第一振动系统还包括固定于所述盆架的辅助振膜，所述辅助振膜连接至所述骨架。
优选的，所述第二振膜包括沿其振动方向与所述延伸部间隔的第二振动部、由所述第二振动部的周缘向外延伸的呈环状的第三折环、以及由所述第三折环的外周侧延伸并固定于所述支撑环的固定部；所述第二音圈固定于所述第二振动部靠近所述磁路系统的一侧。
优选的，所述磁路系统还包括固定于所述第一副磁钢靠近第一振动系统一侧的第一极芯和固定于所述第二副磁钢靠近所述第一振动系统一侧的第二极芯。
优选的，所述磁路系统还包括沿所述第二振膜的振动方向贯穿所述延伸部和所述磁轭的安装孔；所述发声器件还包括装配于所述安装孔内的嵌件，所述嵌件与所述第一音圈电连接，用以为所述第一音圈提供驱动信号。
优选的，所述嵌件包括收容于所述安装孔内的嵌件本体、由所述嵌件本体的顶端向外弯折延伸的嵌件支撑壁以及由所述嵌件本体的底端延伸至所述发声内腔外部的导电端子；所述嵌件支撑壁支撑固定于所述延伸部的顶部，所述第一音圈及所述第二音圈分别与所述嵌件本体电连接。
优选的，所述盆架与所述磁轭之间形成泄漏孔，所述发声器件还包括固定于所述磁轭的外周侧的壳体，所述壳体延伸至固定于所述盆架。
与相关技术相比，本实用新型的发声器件中，通过一磁路系统实现外侧和内侧双振动系统同向振动的推挽式结构设置，用以提升低频频响；通过将磁路系统固定于盆架，磁路系统靠近第一振动系统的一侧间隔设置有第一磁间隙和第二磁间隙，第一磁间隙环绕第二磁间隙设置；第一音圈插设于第一磁间隙内；盆架、第一振动系统、磁路系统和盖体共同围成发声内腔；通过将第二振动系统位于发声内腔内，其包括固定支撑于磁路系统靠近第一振膜一侧的第二振膜以及驱动第二振膜振动发声的第二音圈，第二音圈插设于第二磁间隙内；将支撑环设置于第一振动系统和第二振动系统之间，支撑环包括支撑环本体和贯穿支撑环本体的连通孔，连通孔与发声内腔连通，第二振膜的外周侧固定于连通孔内；第一振膜振动产生的气流穿过支撑环的连通孔推动第二振膜；嵌件位于第二振膜下方，嵌件设有贯穿其上的泄压孔，第二振膜振动产生的气流自泄压孔传输至外界；这样利用推挽式结构双音圈驱动可以将功率分散，解决PA电压输出限制以及音圈温度过高风险，实现低频性能提升，用户体验效果良好。
为了更清楚地说明本实用新型实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本实用新型的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图，其中：
图1为本实用新型发声器件的立体结构示意图；
图2为本实用新型发声器件的立体结构分解图；
图3为沿图1中A-A线的剖示图;
图4为本实用新型支撑环的结构示意图。
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本实用新型的一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本实用新型保护的范围。
请同时参阅图1-4，本实用新型提供了一种发声器件100，所述发声器件100包括盆架1、第一振动系统2、磁路系统3、第二振动系统4、嵌件5以及盖体38。
盆架1用于支撑固定第一振动系统2、第二振动系统4、磁路系统3和嵌件5。
所述第一振动系统2包括固定于所述盆架1的第一振膜21以及驱动所述第一振膜21振动发声的第一音圈22。
所述磁路系统3固定于所述盆架1，所述磁路系统3靠近所述第一振动系统2的一侧间隔设置有第一磁间隙6和第二磁间隙7，所述第一磁间隙6环绕所述第二磁间隙7设置；所述第一音圈22插设于所述第一磁间隙6内。
盖体38固定于第一振膜21上，所述盆架1、所述第一振动系统2、所述磁路系统3和盖体38共同围成发声内腔10。可选的，盖体38盖设于第一振膜21的内周侧上。
所述第二振动系统4位于所述发声内腔10内，所述第二振动系统4包括支撑于所述磁路系统3靠近所述第一振膜21一侧的第二振膜41以及驱动所述第二振膜41振动发声的第二音圈42，所述第二音圈42插设于所述第二磁间隙7内。第一振动系统2和第二振动系统4的振动方向相同，第一振动系统2的第一振膜21的振动幅度大于第二振动系统4的第二振膜41的振动幅度。第一音圈22的横截面积大于第二音圈42的横截面积。从而使得第一音圈22的驱动力大于第二音圈42的驱动力，形成了双音圈同向驱动结构，实现推挽式结构双音圈驱动可以将功率分散。
支撑环37，所述支撑环37位于所述发声内腔10内，且分别固定于所述第一振膜21、所述第二振膜41和所述磁路系统2，所述支撑环37包括支撑环本体371和贯穿支撑环本体371的连通孔373，所述连通孔373与所述发声内腔10连通，所述第二振膜41的外周侧固定于所述连通孔373内，所述第一振膜21振动产生的气流穿过所述支撑环37的连通孔373推动所述第二振膜41。所述嵌件5位于所述第二振膜21下方，所述嵌件5设有贯穿其上的泄压孔52，所述第二振膜41振动产生的气流自所述泄压孔52传输至外界。便于发声内腔10空气依次从第一磁间隙6、连通孔373传输到盖体38和第一振膜21之间的腔体内，通过盖上于第一振膜21的盖体38阻挡沿其振动方向的反方向推动第二振膜41，从而使第二振膜41振动产生的气流自所述泄压孔52传输至外界，这样利用推挽式结构双音圈驱动可以将功率分散，解决PA电压输出限制以及音圈温度过高风险，实现低频性能提升，用户体验效果良好。
本实施方式中，支撑环37还包括由所述支撑环本体371向靠近所述第二振膜41方向凸出延伸的凸台372，所述第二振膜41的外周侧支撑固定于所述凸台272上。通过将第二振膜41的外周侧放置于所述凸台272上并与所述连通孔37固定，第二振膜41的固定效果良好。
在本实施方式中，所述连通孔373包括相对贯穿形成于所述支撑环本体371一侧的第一连通孔3731和相对贯穿形成于所述支撑环本体371另一侧的第二连通孔3732。具体的，第一连通孔3731包括两个，第二连通孔3732包括两个。支撑环本体371呈矩形结构，其相对的短边分别间隔设置两个第一连通孔3731，其相对的长边分别间隔设置两个第二连通孔3732。将两个第一连通孔3731、两个第二连通孔3732与发声内腔100连通，用以将发声内腔的空气流经第一连通孔3731、第二连通孔3732至盖体38和第二振膜41之间，从而实现双振动同向的推挽式结构。可以将功率分散，解决PA电压输出限制以及音圈温度过高风险，同时实现低频性能提升，用户体验效果良好。
本实施方式中，所述磁路系统3包括磁轭31、由所述磁轭31向所述第二振动系统4反向凸出延伸的延伸部32、固定于所述磁轭31且环绕所述延伸部32间隔形成所述第二磁间隙7的第一副磁钢33、以及固定于所述磁轭31且环绕所述第一副磁钢33并与所述第一副磁钢33间隔形成所述第一磁间隙6的第二副磁钢34；所述第二振膜41的外周缘支撑固定于所述支撑环37。通过延伸部32和第一副磁钢33、第二副磁钢34之间产生的磁场分别作用与第二音圈42和第一音圈22上，从而增加音圈的发声性能。
本实施方式中，所述第一振膜21包括固定于所述盆架1且呈环状的第一折环211、间隔设置于所述第一折环211内侧且呈环状的第二折环212、连接所述第一折环211和所述第二折环212的骨架213、以及固定于所述骨架213呈环状的第一球顶214；第一折环211的外周侧固定于所述盆架1，所述第二折环212的内周侧固定于所述支撑环37的顶面，所述第一音圈22固定于所述骨架213靠近所述磁路系统3的一侧；所述盖体38将所述第二折环212的内周侧压设于所述支撑环37，且所述盖体38与所述第二振膜41沿所述第二振膜41的振动方向正对间隔。通过将第一折环211固定在盆架1上，将第二折环212、骨架213和第一折环211固定连接，从而提高第一振膜21的振动性能。所述骨架213的另一端与所述第一音圈22连接以将所述第一音圈22悬置于所述第一磁间隙6内。通过骨架213增加骨架213和第一音圈22的固定效果，使振动过程中稳定，避免第一音圈22脱落。
本实施方式中，所述第一振动系统2还包括所述盆架1的辅助振膜23，所述辅助振膜23连接至所述骨架213。通过在盆架1的两端设置辅助振膜23用于与第一振膜21配合，提升第一振膜21的振动性能。
本实施方式中，所述第二振膜41包括沿其振动方向与延伸部32间隔的第二振动部412、由所述第二振动部412的周缘向外延伸的呈环状的第三折环411、以及由所述第三折环411的外周侧延伸并固定于所述支撑环37的固定部413；所述第二音圈42固定于所述第二振动部412靠近所述磁路系统3的一侧。将所述第二振膜41与所述盖体38正对设置，实现推挽式结构双音圈驱动可以将功率分散，解决PA电压输出限制以及音圈温度过高风险，同时实现低频性能提升。
本实施方式中，所述磁路系统3还包括固定于所述第一副磁钢33靠近第一振动系统2一侧的第一极芯35和固定于所述第二副磁钢34靠近所述第一振动系统2一侧的第二极芯36。通过第一极芯35和第二极芯36用以分别增加第一副磁钢33和第二副磁钢34的磁性。所述支撑环本体371支撑于所述第一极芯35上。
本实施方式中，所述磁路系统3还包括沿所述第二振膜41的振动方向贯穿所述延伸部32和所述磁轭31的安装孔39；所述发声器件100还包括装配于所述安装孔39内的嵌件5，所述嵌件5与所述第一音圈22电连接，用以为所述第一音圈22提供驱动信号。通过安装孔39安装嵌件5，固定效果好。可选的，嵌件5设置于第一振膜21和辅助振膜23之间。
优选的，延伸部32由磁轭31向第二振动系统4延伸形成环形凸起（未示出），环形凸起中间贯穿形成安装孔39，安装孔39用于放置嵌件5。可选的，也不一定要用安装孔39引出导电，即延伸部32也可以为实心，磁性能力强。
本实施方式中，所述嵌件5包括收容于所述安装孔39内的嵌件本体51、由所述嵌件本体51的顶端向外弯折延伸的嵌件支撑壁53以及由所述嵌件本体51的底端延伸至所述发声内腔10外部的导电端子54。所述嵌件支撑壁53支撑固定于所述延伸部32的顶部，使得嵌件支撑壁53与延伸部32固定良好，从而使得嵌件本体51在延伸部32内安装稳定。所述第一音圈22及所述第二音圈42分别与所述嵌件本体51电连接。便于分别为第一音圈22和第二音圈42提供电能驱动。优选的，所述泄压孔52贯穿所述嵌件本体51形成，泄压效果良好。
本实施方式中，所述盆架1与所述磁轭31之间形成泄漏孔8，所述发声器件100还包括固定于所述磁轭31的外周侧的壳体9，所述壳体9延伸至固定于所述盆架1。方便发声器件进行泄压，声学性能更优。
与相关技术相比，本实用新型的发声器件中，通过一磁路系统实现外侧和内侧双振动系统同向振动的推挽式结构设置，用以提升低频频响；通过将磁路系统固定于盆架，磁路系统靠近第一振动系统的一侧间隔设置有第一磁间隙和第二磁间隙，第一磁间隙环绕第二磁间隙设置；第一音圈插设于第一磁间隙内；盆架、第一振动系统、磁路系统和盖体共同围成发声内腔；通过将第二振动系统位于发声内腔内，其包括固定支撑于磁路系统靠近第一振膜一侧的第二振膜以及驱动第二振膜振动发声的第二音圈，第二音圈插设于第二磁间隙内；将支撑环设置于第一振动系统和第二振动系统之间，支撑环包括支撑环本体和贯穿支撑环本体的连通孔，连通孔与发声内腔连通，第二振膜的外周侧固定于连通孔内；第一振膜振动产生的气流穿过支撑环的连通孔推动第二振膜；嵌件位于第二振膜下方，嵌件设有贯穿其上的泄压孔，第二振膜振动产生的气流自泄压孔传输至外界；这样利用推挽式结构双音圈驱动可以将功率分散，解决PA电压输出限制以及音圈温度过高风险，实现低频性能提升，用户体验效果良好。
以上所述的仅是本实用新型的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本实用新型创造构思的前提下，还可以做出改进，但这些均属于本实用新型的保护范围。
Claims (10)
- 一种发声器件，其特征在于，所述发声器件包括：盆架；第一振动系统，所述第一振动系统包括固定于所述盆架的第一振膜以及驱动所述第一振膜振动发声的第一音圈；磁路系统，所述磁路系统固定于所述盆架，所述磁路系统靠近所述第一振动系统的一侧间隔设置有第一磁间隙和第二磁间隙，所述第一磁间隙环绕所述第二磁间隙设置；所述第一音圈插设于所述第一磁间隙内；盖体，所述盖体固定于所述第一振膜上，所述盆架、所述第一振动系统、所述磁路系统和所述盖体共同围成发声内腔；第二振动系统，所述第二振动系统位于所述发声内腔内，其包括固定支撑于所述磁路系统靠近所述第一振膜一侧的第二振膜以及驱动所述第二振膜振动发声的第二音圈，所述第二音圈插设于所述第二磁间隙内；支撑环，所述支撑环位于所述发声内腔内，且固定于所述第一振膜、所述第二振膜和所述磁路系统，所述支撑环包括支撑环本体和贯穿所述支撑环本体的连通孔，所述连通孔与所述发声内腔连通，所述第二振膜的外周侧固定于所述连通孔内，所述第一振膜振动产生的气流穿过所述支撑环的连通孔推动所述第二振膜；以及，嵌件，所述嵌件位于所述第二振膜下方，所述嵌件设有贯穿其上的泄压孔，所述第二振膜振动产生的气流自所述泄压孔传输至外界。
- 根据权利要求1所述的发声器件，其特征在于，所述连通孔包括相对贯穿形成于所述支撑环本体一侧的第一连通孔和相对贯穿形成于所述支撑环本体另一侧的第二连通孔。
- 根据权利要求1所述的发声器件，其特征在于，所述磁路系统包括固定于所述盆架的磁轭、由所述磁轭向所述第二振动系统方向凸出延伸的延伸部、固定于所述磁轭且环绕所述延伸部间隔形成所述第二磁间隙的第一副磁钢、以及固定于所述磁轭且环绕所述第一副磁钢并与所述第一副磁钢间隔形成所述第一磁间隙的第二副磁钢，所述第二振膜的外周缘支撑固定于所述支撑环。
- 根据权利要求3所述的发声器件，其特征在于，所述第一振膜包括呈环状的第一折环、间隔设置于所述第一折环内侧且呈环状的第二折环、连接所述第一折环和所述第二折环的呈环状的骨架、以及固定于所述骨架的呈环状的第一球顶；所述第一折环的外周侧固定于所述盆架，所述第二折环的内周侧固定于所述支撑环的顶面，所述第一音圈固定于所述骨架靠近所述磁路系统的一侧；所述盖体将所述第二折环的内周侧压设于所述支撑环，且所述盖体与所述第二振膜沿所述第二振膜的振动方向正对间隔；所述骨架的另一端与所述第一音圈连接以将所述第一音圈悬置于所述第一磁间隙内。
- 根据权利要求4所述的发声器件，其特征在于，所述第一振动系统还包括固定于所述盆架的辅助振膜，所述辅助振膜连接至所述骨架。
- 根据权利要求4所述的发声器件，其特征在于，所述第二振膜包括沿其振动方向与所述延伸部间隔的第二振动部、由所述第二振动部的周缘向外延伸的呈环状的第三折环、以及由所述第三折环的外周侧延伸并固定于所述支撑环的固定部；所述第二音圈固定于所述第二振动部靠近所述磁路系统的一侧。
- 根据权利要求4所述的发声器件，其特征在于，所述磁路系统还包括固定于所述第一副磁钢靠近第一振动系统一侧的第一极芯和固定于所述第二副磁钢靠近所述第一振动系统一侧的第二极芯。
- 根据权利要求3所述的发声器件，其特征在于，所述磁路系统还包括沿所述第二振膜的振动方向贯穿所述延伸部和所述磁轭的安装孔。
- 根据权利要求8所述的发声器件，其特征在于，所述嵌件包括收容于所述安装孔内的嵌件本体、由所述嵌件本体的顶端向外弯折延伸的嵌件支撑壁以及由所述嵌件本体的底端延伸至所述发声内腔外部的导电端子；所述嵌件支撑壁支撑固定于所述延伸部的顶部，所述第一音圈及所述第二音圈分别与所述嵌件本体电连接。
- 根据权利要求3所述的发声器件，其特征在于，所述盆架与所述磁轭之间形成泄漏孔，所述发声器件还包括固定于所述磁轭的外周侧的壳体，所述壳体延伸至固定于所述盆架。
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| US20090180648A1 (en) * | 2006-07-03 | 2009-07-16 | Pioneer Corporation | Speaker device and speaker unit |
| CN201699968U (zh) * | 2010-06-28 | 2011-01-05 | 歌尔声学股份有限公司 | 动圈式发声器 |
| US8831270B1 (en) * | 2013-08-08 | 2014-09-09 | Dimitar Kirilov Dimitrov | Single magnet coaxial loudspeaker |
| CN212324356U (zh) * | 2020-09-11 | 2021-01-08 | 常州市润蒙声学科技有限公司 | 一种双驱动双面发声的扬声器 |
| CN212812019U (zh) * | 2020-07-06 | 2021-03-26 | 瑞声科技(新加坡)有限公司 | 发声器件 |
| CN216391399U (zh) * | 2021-12-16 | 2022-04-26 | 瑞声光电科技(常州)有限公司 | 发声器件 |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090180648A1 (en) * | 2006-07-03 | 2009-07-16 | Pioneer Corporation | Speaker device and speaker unit |
| CN201699968U (zh) * | 2010-06-28 | 2011-01-05 | 歌尔声学股份有限公司 | 动圈式发声器 |
| US8831270B1 (en) * | 2013-08-08 | 2014-09-09 | Dimitar Kirilov Dimitrov | Single magnet coaxial loudspeaker |
| CN212812019U (zh) * | 2020-07-06 | 2021-03-26 | 瑞声科技(新加坡)有限公司 | 发声器件 |
| CN212324356U (zh) * | 2020-09-11 | 2021-01-08 | 常州市润蒙声学科技有限公司 | 一种双驱动双面发声的扬声器 |
| CN216391399U (zh) * | 2021-12-16 | 2022-04-26 | 瑞声光电科技(常州)有限公司 | 发声器件 |
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