WO2021134256A1 - Sound production device - Google Patents
Sound production device Download PDFInfo
- Publication number
- WO2021134256A1 WO2021134256A1 PCT/CN2019/130031 CN2019130031W WO2021134256A1 WO 2021134256 A1 WO2021134256 A1 WO 2021134256A1 CN 2019130031 W CN2019130031 W CN 2019130031W WO 2021134256 A1 WO2021134256 A1 WO 2021134256A1
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- WIPO (PCT)
- Prior art keywords
- steel sheet
- diaphragm
- speaker unit
- vibrating diaphragm
- top wall
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 51
- 239000010959 steel Substances 0.000 claims abstract description 51
- 230000005389 magnetism Effects 0.000 claims abstract description 17
- 125000006850 spacer group Chemical group 0.000 claims description 17
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract 1
- 230000002401 inhibitory effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000012360 testing method Methods 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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
Definitions
- the utility model relates to the technical field of electroacoustics, in particular to a sound generating device.
- the purpose of the utility model is to provide a sound device that can protect the speaker unit in the case of excessive amplitude.
- a sound generating device includes an upper cover, a lower cover enclosing the upper cover to form an accommodating space, and a speaker unit accommodated in the accommodating space.
- the speaker unit includes a diaphragm, and the upper cover includes an orientation
- the top wall of the diaphragm; the sounding device further includes a steel sheet fixed to the top wall, the steel sheet and the diaphragm both have magnetism, and the steel sheet and the diaphragm have the same magnetic properties .
- the steel sheet is directly opposite to the diaphragm and arranged at intervals, and the surface magnetism of the steel sheet facing the direction of the diaphragm is the same as the surface magnetism of the diaphragm facing the direction of the steel sheet.
- the top wall is provided with an opening penetrating the top wall, and the steel sheet covers the opening.
- the sound emitting device further includes a gas-permeable isolator clamped between the speaker unit and the lower cover.
- the lower cover includes a bottom wall facing the air-permeable spacer and a lower side wall extending from the bottom wall in a direction close to the air-permeable spacer, and the air-permeable spacer is sandwiched on the lower side Between the wall and the speaker unit.
- the upper cover further includes an upper side wall extending from the top wall in a direction close to the speaker unit, the upper side wall is provided with a sound outlet, and the sound generating device further includes The dustproof spacer on the outer surface of the sound hole.
- the sound generating device further includes an FPC board, one end of the FPC board is electrically connected to the speaker unit, and the other end of the FPC board extends out of the accommodating space to introduce external electrical signals to the speaker unit .
- the speaker unit includes a basin frame, and the diaphragm is fixed to the basin frame;
- the diaphragm includes a dome and a folding ring arranged around the dome, and the folding ring includes A folding ring portion bent and extending from the top periphery and a fixing portion extending from an end of the folding ring portion away from the dome in a direction away from the dome, the fixing portion is fixed to the basin frame; the folding ring The part bends and protrudes toward the direction of the steel sheet.
- the beneficial effect of the utility model lies in that: in the utility model, the steel sheet and the diaphragm arranged on the top wall of the sound device are both subjected to magnetic treatment, so that the magnetism of the steel sheet is the same as that of the diaphragm.
- the diaphragm and the steel sheet are basically not affected by magnetism.
- the diaphragm and the steel sheet repel each other, which can avoid the direct contact between the diaphragm and the steel sheet. Unnecessary noise or damage to the diaphragm occurs in the collision, thereby protecting the speaker unit and suppressing the amplitude.
- Figure 1 is a schematic diagram of the overall structure of a sound generating device of the present invention
- Figure 2 is a schematic diagram of an exploded structure of a sound generating device of the present invention
- Fig. 3 is a schematic cross-sectional view of the A-A plane in Fig. 1;
- Figure 4 is a schematic diagram of the structure of the speaker unit of the utility model
- Figure 5 is a graph of the amplitude test result of the utility model.
- the present invention discloses a sound emitting device.
- the sound emitting device includes an upper cover 1, a lower cover 2 enclosing the upper cover 1 to form an accommodation space 8, and a speaker unit 3 accommodated in the accommodation space 8.
- the speaker unit 3 has a diaphragm 31, and the upper cover 1 includes a top wall 11 facing the diaphragm 31 and an upper side wall 12 extending from the top wall 11 in a direction close to the speaker unit 3.
- the sound emitting device further includes a steel sheet 4 fixed on the top wall 11, the steel sheet 4 and the diaphragm 31 have magnetism, and the steel sheet 4 and the diaphragm 31 have the same magnetic properties.
- the steel sheet 4 is directly opposite to the diaphragm and arranged at intervals, and the surface magnetism of the steel sheet 4 in the direction of the diaphragm 31 is the same as the surface magnetism of the diaphragm 31 in the direction of the steel sheet 4.
- the surface magnetism of the steel sheet 4 in the direction of the diaphragm 31 and the surface magnetism of the diaphragm 31 in the direction of the steel sheet 4 may be both N pole or S pole at the same time.
- the space of the front cavity 81 is the vibration space of the diaphragm 31, and both the steel sheet 4 and the diaphragm 31 are subjected to magnetic treatment, so that the steel sheet 4 faces the surface of the diaphragm 31.
- the magnetism is the same as the surface magnetism of the diaphragm 31 facing the steel sheet 4.
- the diaphragm 31 and the steel sheet 4 are basically not affected by magnetism.
- the diaphragm 31 and the steel sheet 4 repel each other, which can avoid the diaphragm 31 and the steel sheet.
- the direct collision between 31 and the steel sheet causes unnecessary noise or damages the diaphragm 31, thereby protecting the speaker unit 3 and suppressing the amplitude.
- the top wall 11 is provided with an opening 111 penetrating the top wall 11, and the steel sheet 4 covers the opening 111. Covering the steel sheet 4 on the opening 111 can not only make the upper cover 1 form a complete sealing structure, but also reduce the consumables on the upper cover 1, and reduce the occupied area of the steel sheet 4 as much as possible, without changing the sound generating device of this solution. thick.
- the sound emitting device further includes a breathable spacer 5 clamped between the speaker unit 3 and the lower cover 2.
- the lower cover 2 includes a bottom wall 21 facing the air-permeable spacer 5 and a lower side wall 22 extending from the bottom wall 21 in a direction close to the air-permeable spacer 5.
- the air-permeable spacer 5 is sandwiched between the lower side wall 22 and the speaker unit 3 between.
- the bottom wall 21, the lower side wall 22 and the air-permeable spacer 5 surround a rear cavity 82.
- the air-permeable spacer 5 is arranged at the bottom of the speaker unit 3, which can suppress the shell resonance caused by the speaker unit 3 in operation, thereby improving the performance of the product.
- the lower cover 2 is provided with a leakage hole 23, and both the leakage hole 23 and the sound hole are in communication with the outside, so as to realize the air pressure balance in the entire containing space 8.
- the upper side wall 12 is provided with a sound hole 13, and the sound emitting device further includes a dust-proof spacer 7 attached to the outer surface of the sound hole 13.
- the dust-proof spacer 7 can prevent dust from entering the receiving space 8, thereby playing a certain protective effect.
- the sound generating device further includes an FPC board 6, one end of the FPC board 6 is electrically connected to the speaker unit 3, and the other end of the FPC board 6 extends out of the accommodating space 8 to introduce external electrical signals to the speaker unit 3.
- the FPC board 6 inputs an electric signal to the speaker unit 3, and the voice coil in the speaker unit 3 receives the electric signal and vibrates under the action of a magnetic field and drives the diaphragm 31 to vibrate and produce sound.
- the speaker unit 3 includes a basin frame 32, the diaphragm 31 is fixed to the basin frame 32; the diaphragm 31 includes a dome 311 and a folding ring 312 arranged around the dome 311, the folding ring 312 includes a self-ball A folding ring portion 3121 extending from the periphery of the top 311 and a fixing portion 3122 extending from the end of the folding ring portion 3121 away from the dome 311 in a direction away from the dome 311, the fixing portion 3122 is fixed to the basin frame 32; the folding ring portion 3121 is approaching The direction of the steel sheet 4 is curved and convex.
- the magnetic arrangement of the dome 311 and the steel sheet 4 has the following advantages:
- the control group is a sound device without steel sheet and diaphragm magnetic treatment
- the experimental group is a sound device with steel sheet and diaphragm magnetic treatment disclosed by the utility model.
- the curve from top to bottom in the figure is the upper amplitude of the control group.
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- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The present utility model provides a sound production device. The sound production device of the present utility model comprises an upper cover, a lower cover which defines, with the upper cover, an accommodating space, and a loudspeaker unit accommodated in the accommodating space. The loudspeaker unit is provided with a vibrating diaphragm; the upper cover comprises a top wall facing the vibrating diaphragm and an upper side wall extending from the top wall along a direction approaching the loudspeaker unit; the top wall, the upper side wall and the vibrating diaphragm define a front cavity; the sound production device further comprises a steel sheet fixed on the top wall; the steel sheet and the vibrating diaphragm both have magnetism, and the steel sheet and the vibrating diaphragm have the same magnetism. When the amplitude of the vibrating diaphragm is within a preset range, the vibrating diaphragm and the steel sheet are basically not affected by magnetism, and when the amplitude of the vibrating diaphragm is too large, the vibrating diaphragm and the steel sheet repel each other, so that unnecessary noise or damage to the vibrating diaphragm due to direct collision between the vibrating diaphragm and the steel sheet can be avoided, and the effects of protecting the loudspeaker unit and inhibiting the amplitude are achieved.
Description
本实用新型涉及电声技术领域，尤其涉及一种发声器件。The utility model relates to the technical field of electroacoustics, in particular to a sound generating device.
随着科技的快速发展，在音频设备快速发展的过程中，人们对产品的功能性要求越来越强，对于发声器件，越来越多人对其音频性能等提出了较高的要求。相关技术中，当振膜振幅过大时，发声器件容易产生杂音甚至发声器件的振膜容易与发声器件的上盖发生碰撞导致损坏，因此，发声器件的可靠性较差。With the rapid development of science and technology, in the process of rapid development of audio equipment, people have increasingly stronger requirements for the functionality of products. For sound-producing devices, more and more people have put forward higher requirements for their audio performance. In the related art, when the amplitude of the diaphragm is too large, the sounding device is prone to noise, and even the diaphragm of the sounding device is likely to collide with the upper cover of the sounding device and cause damage. Therefore, the reliability of the sounding device is poor.
本实用新型的目的在于提供一种在振幅过大情况下可以保护扬声器单体的发声器件。The purpose of the utility model is to provide a sound device that can protect the speaker unit in the case of excessive amplitude.
本实用新型的技术方案如下：The technical scheme of the utility model is as follows:
一种发声器件，包括上盖、与所述上盖围设形成收容空间的下盖以及收容于所述收容空间内的扬声器单体，所述扬声器单体包括振膜，所述上盖包括朝向所述振膜的顶壁；所述发声器件还包括固定于所述顶壁的钢片，所述钢片以及所述振膜均具有磁性，且所述钢片与所述振膜的磁性相同。A sound generating device includes an upper cover, a lower cover enclosing the upper cover to form an accommodating space, and a speaker unit accommodated in the accommodating space. The speaker unit includes a diaphragm, and the upper cover includes an orientation The top wall of the diaphragm; the sounding device further includes a steel sheet fixed to the top wall, the steel sheet and the diaphragm both have magnetism, and the steel sheet and the diaphragm have the same magnetic properties .
优选地，所述钢片与所述振膜正对且间隔设置，所述钢片朝向所述振膜方向的表面磁性与所述振膜朝向所述钢片方向的表面磁性相同。Preferably, the steel sheet is directly opposite to the diaphragm and arranged at intervals, and the surface magnetism of the steel sheet facing the direction of the diaphragm is the same as the surface magnetism of the diaphragm facing the direction of the steel sheet.
优选地，所述顶壁设有贯穿所述顶壁的开口，所述钢片覆盖所述开口。Preferably, the top wall is provided with an opening penetrating the top wall, and the steel sheet covers the opening.
优选地，所述发声器件还包括夹持于所述扬声器单体与所述下盖之间的透气隔离件。Preferably, the sound emitting device further includes a gas-permeable isolator clamped between the speaker unit and the lower cover.
优选地，所述下盖包括朝向所述透气隔离件的底壁以及自所述底壁向靠近所述透气隔离件的方向延伸的下侧壁，所述透气隔离件夹设于所述下侧壁与所述扬声器单体之间。Preferably, the lower cover includes a bottom wall facing the air-permeable spacer and a lower side wall extending from the bottom wall in a direction close to the air-permeable spacer, and the air-permeable spacer is sandwiched on the lower side Between the wall and the speaker unit.
优选地，所述上盖还包括自所述顶壁向靠近所述扬声器单体的方向延伸的上侧壁，所述上侧壁上设有出音孔，所述发声器件还包括贴设于所述出音孔外表面的防尘隔垫。Preferably, the upper cover further includes an upper side wall extending from the top wall in a direction close to the speaker unit, the upper side wall is provided with a sound outlet, and the sound generating device further includes The dustproof spacer on the outer surface of the sound hole.
优选地，所述发声器件还包括FPC板，所述FPC板的一端与所述扬声器单体电连接，所述FPC板的另一端伸出所述收容空间为所述扬声器单体引入外部电信号。Preferably, the sound generating device further includes an FPC board, one end of the FPC board is electrically connected to the speaker unit, and the other end of the FPC board extends out of the accommodating space to introduce external electrical signals to the speaker unit .
优选地，所述扬声器单体包括盆架，所述振膜固定于所述盆架；所述振膜包括球顶以及环绕所述球顶设置的折环，所述折环包括自所述球顶周缘弯折延伸的折环部以及自所述折环部远离所述球顶的一端向远离所述球顶方向延伸的固定部，所述固定部固定于所述盆架；所述折环部向靠近所述钢片的方向弯曲凸出。Preferably, the speaker unit includes a basin frame, and the diaphragm is fixed to the basin frame; the diaphragm includes a dome and a folding ring arranged around the dome, and the folding ring includes A folding ring portion bent and extending from the top periphery and a fixing portion extending from an end of the folding ring portion away from the dome in a direction away from the dome, the fixing portion is fixed to the basin frame; the folding ring The part bends and protrudes toward the direction of the steel sheet.
本实用新型的有益效果在于：在本实用新型中，将设置于发声器件顶壁的钢片与振膜均进行磁性处理，使钢片的磁性与振膜的磁性相同。当振膜的振幅在预设范围内时，振膜与钢片基本不受磁性的影响，当振膜的振幅过大时，振膜与钢片相互排斥，可以避免振膜与钢片的直接碰撞出现不必要的杂音或损坏振膜，从而起到了保护扬声器单体以及抑制振幅的作用。The beneficial effect of the utility model lies in that: in the utility model, the steel sheet and the diaphragm arranged on the top wall of the sound device are both subjected to magnetic treatment, so that the magnetism of the steel sheet is the same as that of the diaphragm. When the amplitude of the diaphragm is within the preset range, the diaphragm and the steel sheet are basically not affected by magnetism. When the amplitude of the diaphragm is too large, the diaphragm and the steel sheet repel each other, which can avoid the direct contact between the diaphragm and the steel sheet. Unnecessary noise or damage to the diaphragm occurs in the collision, thereby protecting the speaker unit and suppressing the amplitude.
图1为本实用新型一种发声器件的整体结构示意图；Figure 1 is a schematic diagram of the overall structure of a sound generating device of the present invention;
图2为本实用新型一种发声器件的分解结构示意图；
Figure 2 is a schematic diagram of an exploded structure of a sound generating device of the present invention;
图3为图1中A-A面的剖切示意图；Fig. 3 is a schematic cross-sectional view of the A-A plane in Fig. 1;
图4为本实用新型的扬声器单体的结构示意图；Figure 4 is a schematic diagram of the structure of the speaker unit of the utility model;
图5为本实用新型的振幅测试结果图。Figure 5 is a graph of the amplitude test result of the utility model.
下面结合附图和实施方式对本实用新型作进一步说明。The present utility model will be further explained below in conjunction with the drawings and embodiments.
如图1-3示，本发明公开了一种发声器件，该发声器件包括上盖1、与上盖1围设形成收容空间8的下盖2以及收容于收容空间8内的扬声器单体3，扬声器单体3具有振膜31，上盖1包括朝向振膜31的顶壁11以及自顶壁11向靠近扬声器单体3的方向延伸的上侧壁12，顶壁11、上侧壁12以及振膜31围设形成前腔81；发声器件还包括固定于顶壁11上的钢片4，钢片4以及振膜31均具有磁性，且钢片4与振膜31的磁性相同。As shown in Figures 1-3, the present invention discloses a sound emitting device. The sound emitting device includes an upper cover 1, a lower cover 2 enclosing the upper cover 1 to form an accommodation space 8, and a speaker unit 3 accommodated in the accommodation space 8. The speaker unit 3 has a diaphragm 31, and the upper cover 1 includes a top wall 11 facing the diaphragm 31 and an upper side wall 12 extending from the top wall 11 in a direction close to the speaker unit 3. The top wall 11 and the upper side wall 12 And the diaphragm 31 surrounds the front cavity 81; the sound emitting device further includes a steel sheet 4 fixed on the top wall 11, the steel sheet 4 and the diaphragm 31 have magnetism, and the steel sheet 4 and the diaphragm 31 have the same magnetic properties.
具体地，钢片4与振膜正对且间隔设置，钢片4朝向振膜31方向的表面磁性与振膜31朝向钢片4方向的表面磁性相同。钢片4朝向振膜31方向的表面磁性与振膜31朝向钢片4方向的表面磁性可以同时为N极或者同时为S极。Specifically, the steel sheet 4 is directly opposite to the diaphragm and arranged at intervals, and the surface magnetism of the steel sheet 4 in the direction of the diaphragm 31 is the same as the surface magnetism of the diaphragm 31 in the direction of the steel sheet 4. The surface magnetism of the steel sheet 4 in the direction of the diaphragm 31 and the surface magnetism of the diaphragm 31 in the direction of the steel sheet 4 may be both N pole or S pole at the same time.
相较于现有技术，在本实施例中，前腔81的空间为振膜31的振动空间，将钢片4与振膜31均进行磁性处理，使钢片4朝向振膜31方向的表面磁性与振膜31朝向钢片4方向的表面磁性相同。当振膜31的振幅在预设范围内时，振膜31与钢片4基本不受磁性的影响，当振膜31的振幅过大时，振膜31与钢片相互排斥，可以避免振膜31与钢片的直接碰撞出现不必要的杂音或损坏振膜31，从而起到了保护扬声器单体3以及抑制振幅的作用。Compared with the prior art, in this embodiment, the space of the front cavity 81 is the vibration space of the diaphragm 31, and both the steel sheet 4 and the diaphragm 31 are subjected to magnetic treatment, so that the steel sheet 4 faces the surface of the diaphragm 31. The magnetism is the same as the surface magnetism of the diaphragm 31 facing the steel sheet 4. When the amplitude of the diaphragm 31 is within the preset range, the diaphragm 31 and the steel sheet 4 are basically not affected by magnetism. When the amplitude of the diaphragm 31 is too large, the diaphragm 31 and the steel sheet repel each other, which can avoid the diaphragm 31 and the steel sheet. The direct collision between 31 and the steel sheet causes unnecessary noise or damages the diaphragm 31, thereby protecting the speaker unit 3 and suppressing the amplitude.
在本实施例中，顶壁11设有贯穿顶壁11的开口111，钢片4覆盖开口111。钢片4覆盖在开口111上既可以使上盖1形成完整的密封结构，同时也可以减少上盖1上的耗材，尽可能减少钢片4的占用面积，不会使本方案的发声器件变厚。In this embodiment, the top wall 11 is provided with an opening 111 penetrating the top wall 11, and the steel sheet 4 covers the opening 111. Covering the steel sheet 4 on the opening 111 can not only make the upper cover 1 form a complete sealing structure, but also reduce the consumables on the upper cover 1, and reduce the occupied area of the steel sheet 4 as much as possible, without changing the sound generating device of this solution. thick.
在本实施例中，发声器件还包括夹持于扬声器单体3与下盖2之间的透气隔离件5。下盖2包括朝向透气隔离件5的底壁21以及自底壁21向靠近透气隔离件5的方向延伸的下侧壁22，透气隔离件5夹设于下侧壁22与扬声器单体3之间。底壁21、下侧壁22以及透气隔离件5围设形成后腔82。In this embodiment, the sound emitting device further includes a breathable spacer 5 clamped between the speaker unit 3 and the lower cover 2. The lower cover 2 includes a bottom wall 21 facing the air-permeable spacer 5 and a lower side wall 22 extending from the bottom wall 21 in a direction close to the air-permeable spacer 5. The air-permeable spacer 5 is sandwiched between the lower side wall 22 and the speaker unit 3 between. The bottom wall 21, the lower side wall 22 and the air-permeable spacer 5 surround a rear cavity 82.
透气隔离件5设置在扬声器单体3的底部，可以抑制扬声器单体3工作时引起的壳体共振，从而可以提高产品的性能。下盖2上设有泄露孔23，泄露孔23与出音孔均与外界相通，从而实现整个收容空间8内的气压平衡。The air-permeable spacer 5 is arranged at the bottom of the speaker unit 3, which can suppress the shell resonance caused by the speaker unit 3 in operation, thereby improving the performance of the product. The lower cover 2 is provided with a leakage hole 23, and both the leakage hole 23 and the sound hole are in communication with the outside, so as to realize the air pressure balance in the entire containing space 8.
在本实施例中，上侧壁12上设有出音孔13，发声器件还包括贴设于出音孔13外表面的防尘隔垫7。防尘隔垫7可以避免灰尘进入收容空间8内，从而起到一定的保护作用。In this embodiment, the upper side wall 12 is provided with a sound hole 13, and the sound emitting device further includes a dust-proof spacer 7 attached to the outer surface of the sound hole 13. The dust-proof spacer 7 can prevent dust from entering the receiving space 8, thereby playing a certain protective effect.
在本实施例中，发声器件还包括FPC板6，FPC板6的一端与扬声器单体3电连接，FPC板6的另一端伸出收容空间8为所述扬声器单体3引入外部电信号。FPC板6向扬声器单体3输入电信号，扬声器单体3中的音圈接收电信号在磁场作用下振动并带动振膜31振动发声。In this embodiment, the sound generating device further includes an FPC board 6, one end of the FPC board 6 is electrically connected to the speaker unit 3, and the other end of the FPC board 6 extends out of the accommodating space 8 to introduce external electrical signals to the speaker unit 3. The FPC board 6 inputs an electric signal to the speaker unit 3, and the voice coil in the speaker unit 3 receives the electric signal and vibrates under the action of a magnetic field and drives the diaphragm 31 to vibrate and produce sound.
请进一步参阅图4，所述扬声器单体3包括盆架32，振膜31固定于盆架32；振膜31包括球顶311以及环绕球顶311设置的折环312，折环312包括自球顶311周缘弯折延伸的折环部3121以及自折环部3121远离球顶311的一端向远离球顶311方向延伸的固定部3122，固定部3122固定于盆架32；折环部3121向靠近钢片4的方向弯曲凸出。4, the speaker unit 3 includes a basin frame 32, the diaphragm 31 is fixed to the basin frame 32; the diaphragm 31 includes a dome 311 and a folding ring 312 arranged around the dome 311, the folding ring 312 includes a self-ball A folding ring portion 3121 extending from the periphery of the top 311 and a fixing portion 3122 extending from the end of the folding ring portion 3121 away from the dome 311 in a direction away from the dome 311, the fixing portion 3122 is fixed to the basin frame 32; the folding ring portion 3121 is approaching The direction of the steel sheet 4 is curved and convex.
球顶311与钢片4的磁性设置具有以下优势：The magnetic arrangement of the dome 311 and the steel sheet 4 has the following advantages:
1）当振幅上偏过大时，磁性处理起到抑制振幅的作用，避免扬声器球顶311撞击钢片4；1) When the amplitude is too large, the magnetic treatment can restrain the amplitude and prevent the speaker dome 311 from hitting the steel sheet 4;
2）当振幅异常过大时，磁性处理起到缓冲作用，避免异常杂音出现；2) When the amplitude is abnormally large, the magnetic treatment plays a buffering role to avoid abnormal noise;
3）设计高度更极限的前腔81振动空间，节省扬声器前腔81的高度空间。3) Design the vibration space of the front cavity 81 with a more extreme height to save the height space of the speaker front cavity 81.
请进一步参阅图5，图中横坐标代表频率(Hz)，纵坐标代表振幅（mm）。对照组为未进行钢片与振膜磁性处理的发声器件，实验组为本实用新型公开的进行钢片与振膜磁性处理的发声器件，图中由上至下的曲线依次为对照组上振幅曲线a、实验组上振幅曲线b、对照组下振幅曲线c以及实验组下振幅曲线d。由上图可得，本实用新型中的发声器件通过将钢片与振膜进行同性磁性处理可以有效抑制扬声器单体的振幅。Please further refer to Figure 5, where the abscissa represents frequency (Hz) and the ordinate represents amplitude (mm). The control group is a sound device without steel sheet and diaphragm magnetic treatment, and the experimental group is a sound device with steel sheet and diaphragm magnetic treatment disclosed by the utility model. The curve from top to bottom in the figure is the upper amplitude of the control group. Curve a, the upper amplitude curve b of the experimental group, the lower amplitude curve c of the control group, and the lower amplitude curve d of the experimental group. It can be seen from the above figure that the sound device of the present invention can effectively suppress the amplitude of the speaker unit by subjecting the steel sheet and the diaphragm to the same magnetic treatment.
以上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。The above are only the embodiments of the present utility model. It should be pointed out here that for those of ordinary skill in the art, improvements can be made without departing from the inventive concept of the present utility model, but these all belong to the present utility model. New scope of protection.
Claims (8)
- 一种发声器件，包括上盖、与所述上盖围设形成收容空间的下盖以及收容于所述收容空间内的扬声器单体，所述扬声器单体包括振膜，所述上盖包括朝向所述振膜的顶壁；其特征在于，所述发声器件还包括固定于所述顶壁的钢片，所述钢片以及所述振膜均具有磁性，且所述钢片与所述振膜磁性相同。A sound generating device includes an upper cover, a lower cover enclosing the upper cover to form an accommodating space, and a speaker unit accommodated in the accommodating space. The speaker unit includes a diaphragm, and the upper cover includes an orientation The top wall of the diaphragm; wherein the sound emitting device further includes a steel sheet fixed to the top wall, the steel sheet and the diaphragm are both magnetic, and the steel sheet and the vibration The film has the same magnetic properties.
- 根据权利要求1所述的发声器件，其特征在于，所述钢片与所述振膜正对且间隔设置，所述钢片朝向所述振膜方向的表面磁性与所述振膜朝向所述钢片方向的表面磁性相同。The sound generating device according to claim 1, wherein the steel sheet is directly opposite to the diaphragm and is arranged at intervals, and the surface magnetism of the steel sheet facing the diaphragm direction and the diaphragm facing the The surface of the steel sheet has the same magnetic properties.
- 根据权利要求2所述的发声器件，其特征在于，所述顶壁设有贯穿所述顶壁的开口，所述钢片覆盖所述开口。The sound emitting device according to claim 2, wherein the top wall is provided with an opening penetrating the top wall, and the steel sheet covers the opening.
- 根据权利要求1所述的发声器件，其特征在于，所述发声器件还包括夹持于所述扬声器单体与所述下盖之间的透气隔离件。The sound emitting device according to claim 1, wherein the sound emitting device further comprises an air-permeable spacer clamped between the speaker unit and the lower cover.
- 根据权利要求4所述的发声器件，其特征在于，所述下盖包括朝向所述透气隔离件的底壁以及自所述底壁向靠近所述透气隔离件的方向延伸的下侧壁，所述透气隔离件夹设于所述下侧壁与所述扬声器单体之间。The sounding device according to claim 4, wherein the lower cover comprises a bottom wall facing the air-permeable spacer and a lower side wall extending from the bottom wall in a direction close to the air-permeable spacer, so The air-permeable spacer is sandwiched between the lower side wall and the speaker unit.
- 根据权利要求1所述的发声器件，其特征在于，所述上盖还包括自所述顶壁向靠近所述扬声器单体的方向延伸的上侧壁，所述上侧壁上设有出音孔，所述发声器件还包括贴设于所述出音孔外表面的防尘隔垫。The sounding device according to claim 1, wherein the upper cover further comprises an upper side wall extending from the top wall in a direction close to the speaker unit, and the upper side wall is provided with a sound output The sound emitting device further includes a dust-proof spacer attached to the outer surface of the sound hole.
- 根据权利要求1所述的发声器件，其特征在于，所述发声器件还包括FPC板，所述FPC板的一端与所述扬声器单体电连接，所述FPC板的另一端伸出所述收容空间为所述扬声器单体引入外部电信号。The sound emitting device according to claim 1, wherein the sound emitting device further comprises an FPC board, one end of the FPC board is electrically connected to the speaker unit, and the other end of the FPC board extends out of the housing The space introduces external electrical signals for the speaker unit.
- 根据权利要求1所述的发声器件，其特征在于，所述扬声器单体包括盆架，所述振膜固定于所述盆架；所述振膜包括球顶以及环绕所述球顶设置的折环，所述折环包括自所述球顶周缘弯折延伸的折环部以及自所述折环部远离所述球顶的一端向远离所述球顶方向延伸的固定部，所述固定部固定于所述盆架；所述折环部向靠近所述钢片的方向弯曲凸出。The sound emitting device according to claim 1, wherein the speaker unit includes a basin frame, and the diaphragm is fixed to the basin frame; the diaphragm includes a dome and a fold arranged around the dome. A ring, the folding ring comprising a folding ring portion bent and extending from the periphery of the dome and a fixing portion extending from an end of the folding ring portion away from the dome in a direction away from the dome, the fixing portion Fixed to the basin frame; the folding ring portion bends and protrudes toward the direction close to the steel sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2019/130031 WO2021134256A1 (en) | 2019-12-30 | 2019-12-30 | Sound production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2019/130031 WO2021134256A1 (en) | 2019-12-30 | 2019-12-30 | Sound production device |
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| WO2021134256A1 true WO2021134256A1 (en) | 2021-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| US20190200118A1 (en) * | 2017-12-21 | 2019-06-27 | AAC Technologies Pte. Ltd. | Speaker Box |
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| CN103096224A (en) * | 2013-01-15 | 2013-05-08 | 广东欧珀移动通信有限公司 | Moving-magnetic type speaker |
| CN106303858A (en) * | 2016-09-12 | 2017-01-04 | 青岛海信移动通信技术股份有限公司 | A kind of speaker and terminal unit |
| US20190200118A1 (en) * | 2017-12-21 | 2019-06-27 | AAC Technologies Pte. Ltd. | Speaker Box |
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