WO2021134186A1 - Sound production device - Google Patents
Sound production device Download PDFInfo
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- WO2021134186A1 WO2021134186A1 PCT/CN2019/129869 CN2019129869W WO2021134186A1 WO 2021134186 A1 WO2021134186 A1 WO 2021134186A1 CN 2019129869 W CN2019129869 W CN 2019129869W WO 2021134186 A1 WO2021134186 A1 WO 2021134186A1
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- WIPO (PCT)
- Prior art keywords
- magnetic
- diaphragm
- fixed
- dome
- wall
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Classifications
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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 electro-acoustic conversion, in particular to a sound-producing device applied to electronic sound box products.
- the sound device is also known as a speaker or a horn, which is used in a speaker to convert audio signals into sound for playback.
- the related art sounding device includes a basin frame, a vibration system fixed to the basin frame, and a magnetic circuit system with a magnetic gap.
- the magnetic circuit system drives the vibration system to vibrate and produce sound.
- the vibration system includes The voice coil of the magnetic gap, the diaphragm fixed to the frame; the diaphragm includes a vibrating portion, a folding ring portion bent and extending from the periphery of the vibrating portion, and a bending portion extending from the folding ring portion Fixed to the fixing part of the basin frame.
- the diaphragm as a whole is located on the same plane, and the area of the vibrating part is small, resulting in a small effective vibration area (SD), thereby limiting the loudness of the sounding device.
- SD effective vibration area
- the purpose of the utility model is to provide a loudness sounding device.
- the present invention provides a sounding device, which includes a basin frame, a vibration system supported on the basin frame, and a magnetic circuit system that drives the vibration system to vibrate and produce sound, the magnetic circuit system having a magnetic gap ,
- the vibration system includes a diaphragm and a voice coil assembly inserted in the magnetic gap and fixed to the diaphragm,
- the diaphragm includes a dome and a folding ring fixed on a side of the dome close to the magnetic circuit system, the folding ring is arranged around the voice coil assembly;
- the folding ring includes a dome fixed to the dome A vibrating part, a folding ring part bent and extending from the periphery of the vibrating part and having a ring shape, and a fixing part that is bent and extended from a side of the folding ring part away from the vibration part and fixed to the basin frame;
- the folding ring portion is curved and protruded in an arc shape along a vibration direction perpendicular to the vibration diaphragm.
- the folding ring portion bends and protrudes toward the voice coil assembly along a vibration direction perpendicular to the diaphragm.
- the orthographic projection of the folding ring portion to the dome along the vibration direction of the diaphragm completely falls into the dome.
- the vibrating part is provided with an opening penetrating the vibrating part, and the dome covers the opening; an end of the voice coil assembly close to the diaphragm is connected to the dome to drive the diaphragm Vibration sounds.
- the voice coil assembly includes a bobbin fixed on the side of the dome close to the magnetic circuit system and a voice coil wound around the bobbin, and the voice coil is at least partially inserted into the magnetic gap.
- the basin frame includes a bottom wall, an outer wall bent and extended from the bottom wall away from the periphery of the magnetic circuit system toward the diaphragm, and is bounded by the bottom wall close to the periphery of the magnetic circuit system.
- the inner wall bent and extended by the vibrating membrane and the auxiliary bottom wall formed by bending and extending the outer wall in the direction of the magnetic circuit system and arranged parallel to the bottom wall, the outer walls are arranged around the inner wall and are spaced apart from each other;
- the inner wall is surrounded to form an accommodating space, the magnetic circuit system is at least partially located in the accommodating space; the fixing part is fixed to the auxiliary bottom wall, and the folding ring is arranged at intervals from the outer wall.
- the outer wall is provided with a through hole penetrating therethrough.
- the magnetic circuit system includes a magnetic bowl fixed to the basin frame and a magnetic steel unit accommodating and fixed in the magnetic bowl;
- the magnetic bowl includes a bottom wall of the magnetic bowl supported and fixed to the frame, and a side wall of the magnetic bowl bent and extended from the periphery of the bottom wall of the magnetic bowl in a direction close to the diaphragm, and the magnetic steel unit is fixed to the bottom wall of the magnetic bowl.
- the bottom wall of the magnetic bowl is spaced from the side wall of the magnetic bowl to form the magnetic gap.
- the magnetic steel unit includes a first magnetic steel fixed to the bottom wall of the magnetic bowl, a pole core superimposed on the first magnetic steel, and a pole core superimposed on the pole core away from the first magnetic steel The second magnet on one side.
- the diaphragm includes a dome and a folding ring fixed on the side of the dome close to the magnetic circuit system, and the folding ring surrounds the voice coil assembly
- the folding ring includes a vibrating portion fixed to the dome, a ring-shaped folding ring portion bent and extending from the periphery of the vibrating portion, and a side away from the vibrating portion by the folding ring portion
- the bending part extends and is fixed to the fixing part of the basin frame; the folding ring part is bent and protruded in an arc shape along a vibration direction perpendicular to the vibration diaphragm.
- the folding ring structure is arranged on the side of the dome close to the magnetic circuit system and arranged around the voice coil assembly.
- the space of the entire sound emitting device can be effectively used; the area of the dome is maximized, that is to say, The effective vibration area (SD) of the sounding device is improved, thereby increasing the loudness of the sounding device.
- the folding ring arranged on the side of the dome close to the magnetic circuit system can also push the air to further increase the loudness when vibrating.
- Figure 1 is a schematic diagram of the three-dimensional structure of the sound generating device of the present invention.
- Figure 2 is an exploded view of a part of the three-dimensional structure of the sound device of the present invention.
- Figure 3 is a cross-sectional view taken along line A-A in Figure 1;
- Fig. 4 is a schematic diagram of the three-dimensional structure of the diaphragm of the sound generating device of the present invention.
- the present invention provides a sound generating device 100, which includes a basin frame 1, a vibration system 2 supported on the basin frame 1, and a magnetic circuit system 3 that drives the vibration system 2 to vibrate and produce sound.
- the magnetic circuit system 3 has a magnetic gap 30.
- the vibration system 2 includes a diaphragm 21 and a voice coil assembly 22 inserted in the magnetic gap 30 and fixed to the diaphragm 21.
- the basin frame 1 includes a bottom wall 11, an outer wall 12 bent and extended from the bottom wall 11 away from the periphery of the magnetic circuit system 3 toward the diaphragm 21, and the bottom wall 11 is close to the magnetic circuit system
- the inner wall 13 bent and extended toward the diaphragm 21 and the secondary bottom wall 14 formed by bending and extending the outer wall 12 in the direction of the magnetic circuit system 3 and arranged parallel to the bottom wall 11, the The outer wall 12 surrounds the inner wall 13 and is spaced apart from each other.
- the inner wall 13 encloses and forms an accommodation space 10; the outer wall 12 is provided with a through hole 120 penetrating therethrough, and the through hole 120 connects the inside of the sound device 100 It communicates with the outside and is used to increase the leakage of the sound generating device 100 and balance the air pressure inside and outside.
- the diaphragm 21 includes a dome 211 and a folding ring 212 fixed on the side of the dome 211 close to the magnetic circuit system 3, the folding ring 212 is arranged around the voice coil assembly 22; the folding ring 212 It includes a vibrating portion 2121 fixed to the dome 211 and a ring-shaped folding ring portion 2122 extending from the periphery of the vibrating portion 2121 and a side away from the vibrating portion 2121 by the folding ring portion 2122 Bending, extending and being fixed to the fixing portion 2123 of the basin frame 1, the folding ring portion 2122 is curved and protruding in an arc shape along the vibration direction perpendicular to the vibration diaphragm 21.
- the orthographic projection of the folding ring portion 2122 to the dome 211 along the vibration direction of the diaphragm 21 completely falls into the dome 211;
- the vibration direction of the diaphragm 21 bends and protrudes toward the voice coil assembly 22.
- the structure of the folding ring portion 212 as described above effectively utilizes the space of the sound emitting device 100, maximizes the vibration area of the vibration system 2 and thereby improves the loudness of the sound emitting device.
- the vibrating part 2121 is provided with an opening 21210 penetrating the vibrating part, and the dome 211 covers the opening 21210; the voice coil assembly 22 is close to the end of the diaphragm 21 and the ball The top 211 is connected to drive the diaphragm 21 to vibrate and produce sound.
- the fixing portion 2123 is fixed to the auxiliary bottom wall 14, and the folding ring 212 is spaced from the outer wall 12. Since the folding ring 212 is spaced from the outer wall 12, when the diaphragm 21 vibrates, the air between the folding ring 212 and the outer wall 12 is pushed along with it, and the loudness of the sound device 100 is further improved.
- the voice coil assembly 22 is inserted into the magnetic gap 30 and connected to the dome 211 to drive the diaphragm 21 to vibrate and produce sound.
- the voice coil assembly 22 includes a skeleton 221 fixed on the side of the dome 211 close to the magnetic circuit system 3 and a voice coil 222 wound around the skeleton 221, and the voice coil 222 is at least partially inserted Into the magnetic gap 30.
- the magnetic circuit system 3 is at least partially located in the accommodating space 10 and includes a magnetic bowl 31 fixed to the basin frame 1 and a magnetic steel unit 32 accommodating and fixed in the magnetic bowl 31.
- the magnetic bowl 31 includes a magnetic bowl bottom wall 311 supported and fixed to the basin frame 1, and a magnetic bowl side wall 312 bent and extended from the magnetic bowl bottom wall 311 in a direction close to the diaphragm 21.
- the magnetic bowl The steel unit 32 is fixed to the bottom wall 311 of the magnetic bowl and is spaced from the side wall 312 of the magnetic bowl to form the magnetic gap 30.
- the magnetic steel unit 32 includes a first magnetic steel 321 fixed to the bottom wall 311 of the magnetic bowl, a pole core 322 stacked on the first magnetic steel 321, and a pole core 322 stacked on the pole core 322 away from the first magnet.
- a second magnet 323 on one side of the magnet 321.
- the diaphragm includes a dome and a folding ring fixed on the side of the dome close to the magnetic circuit system, and the folding ring surrounds the voice coil assembly
- the folding ring includes a vibrating portion fixed to the dome, a ring-shaped folding ring portion bent and extending from the periphery of the vibrating portion, and a side away from the vibrating portion by the folding ring portion
- the bending part extends and is fixed to the fixing part of the basin frame; the folding ring part is bent and protruded in an arc shape along a vibration direction perpendicular to the vibration diaphragm.
- the folded ring structure is arranged on the side of the dome close to the magnetic circuit system and arranged around the voice coil assembly.
- the space of the entire sound emitting device can be effectively used; the area of the dome is maximized, that is to say, it is improved.
- the effective vibration area (SD) of the sounding device is improved, thereby improving the loudness of the sounding device.
- the folding ring arranged on the side of the dome close to the magnetic circuit system can also push the air to further increase the loudness when vibrating.
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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)
Abstract
Provided is a sound production device, comprising a frame, a vibration system supported on the frame, and a magnetic circuit system for driving the vibration system to vibrate in order to produce sound. The magnetic circuit system is provided with a magnetic gap. The vibration system comprises a diaphragm, and a voice coil assembly inserted into the magnetic gap and fixed on the diaphragm. The diaphragm comprises a dome and a surround fixed on the side of the dome close to the magnetic circuit system. The surround is arranged surrounding the voice coil assembly, and the surround comprises a vibration portion fixed on the dome, an annular surround portion which bends and extends away from the periphery of the vibration portion, and a fixed portion which bends and extends from the side of the surround portion away from the vibration portion, and is fixed on the frame. The surround portion bends and protrudes in a direction perpendicular to the vibration direction of the diaphragm in order to form an arc shape. Compared with the related art, the sound production device of the present utility model is high in sound volume.
Description
本实用新型涉及电声转换领域，尤其涉及一种运用于电子音箱产品的发声器件。The utility model relates to the field of electro-acoustic conversion, in particular to a sound-producing device applied to electronic sound box products.
发声器件又名扬声器或喇叭，运用于音箱中实现将音频信号转化为声音播放。The sound device is also known as a speaker or a horn, which is used in a speaker to convert audio signals into sound for playback.
相关技术的发声器件包括盆架、分别固定于所述盆架的振动***和具有磁间隙的磁路***，所述磁路***驱动所述振动***振动发声，所述振动***包括插设于所述磁间隙的音圈、固定于所述盆架的振膜；所述振膜包括振动部、由所述振动部的周缘弯折延伸的折环部以及由所述折环部弯折延伸并固定于所述盆架的固定部。The related art sounding device includes a basin frame, a vibration system fixed to the basin frame, and a magnetic circuit system with a magnetic gap. The magnetic circuit system drives the vibration system to vibrate and produce sound. The vibration system includes The voice coil of the magnetic gap, the diaphragm fixed to the frame; the diaphragm includes a vibrating portion, a folding ring portion bent and extending from the periphery of the vibrating portion, and a bending portion extending from the folding ring portion Fixed to the fixing part of the basin frame.
然而，相关技术的发声器件中，振膜整***于同一个平面，所述振动部面积较小，导致有效振动面积（SD）较小，从而限制了所述发声器件的响度。However, in the related art sounding device, the diaphragm as a whole is located on the same plane, and the area of the vibrating part is small, resulting in a small effective vibration area (SD), thereby limiting the loudness of the sounding device.
因此，实有必要提供一种新的发声器件解决上述技术问题。Therefore, it is necessary to provide a new sound generating device to solve the above technical problems.
本实用新型的目的在于提供一种声音响度大的发声器件。The purpose of the utility model is to provide a loudness sounding device.
为了达到上述目的，本实用新型提供了一种发声器件，其包括盆架、支撑于所述盆架的振动***以及驱动所述振动***振动发声的磁路***，所述磁路***具有磁间隙，所述振动***包括振膜和插设于所述磁间隙且固定于所述振膜的音圈组件， In order to achieve the above objective, the present invention provides a sounding device, which includes a basin frame, a vibration system supported on the basin frame, and a magnetic circuit system that drives the vibration system to vibrate and produce sound, the magnetic circuit system having a magnetic gap , The vibration system includes a diaphragm and a voice coil assembly inserted in the magnetic gap and fixed to the diaphragm,
所述振膜包括球顶以及固定于所述球顶靠近所述磁路***一侧的折环，所述折环环绕所述音圈组件设置；所述折环包括固定于所述球顶的振动部、由所述振动部的周缘弯折延伸且呈环状的折环部以及由所述折环部远离所述振动部的一侧弯折延伸并固定于所述盆架的固定部；所述折环部沿垂直于所述振膜的振动方向弯曲凸出呈弧形状。The diaphragm includes a dome and a folding ring fixed on a side of the dome close to the magnetic circuit system, the folding ring is arranged around the voice coil assembly; the folding ring includes a dome fixed to the dome A vibrating part, a folding ring part bent and extending from the periphery of the vibrating part and having a ring shape, and a fixing part that is bent and extended from a side of the folding ring part away from the vibration part and fixed to the basin frame; The folding ring portion is curved and protruded in an arc shape along a vibration direction perpendicular to the vibration diaphragm.
优选的，所述折环部沿垂直于所述振膜的振动方向向靠近所述音圈组件弯曲凸出。Preferably, the folding ring portion bends and protrudes toward the voice coil assembly along a vibration direction perpendicular to the diaphragm.
优选的，所述折环部沿所述振膜的振动方向向所述球顶的正投影完全落入所述球顶。Preferably, the orthographic projection of the folding ring portion to the dome along the vibration direction of the diaphragm completely falls into the dome.
优选的，所述振动部设有贯穿所述振动部的开口，所述球顶覆盖所述开口；所述音圈组件靠近所述振膜的一端与所述球顶连接以驱动所述振膜振动发声。Preferably, the vibrating part is provided with an opening penetrating the vibrating part, and the dome covers the opening; an end of the voice coil assembly close to the diaphragm is connected to the dome to drive the diaphragm Vibration sounds.
优选的，所述音圈组件包括固定于所述球顶靠近所述磁路***一侧的骨架以及绕设于所述骨架的音圈，所述音圈至少部分***至所述磁间隙内。Preferably, the voice coil assembly includes a bobbin fixed on the side of the dome close to the magnetic circuit system and a voice coil wound around the bobbin, and the voice coil is at least partially inserted into the magnetic gap.
优选的，所述盆架包括底壁、由所述底壁远离所述磁路***的周缘向所述振膜弯折延伸的外壁、由所述底壁靠近所述磁路***的周缘向所述振膜弯折延伸的内壁以及由所述外壁向所述磁路***方向弯折延伸形成且与所述底壁平行设置的副底壁，所述外壁环绕所述内壁设置且相互间隔；所述内壁围设形成容纳空间，所述磁路***至少部分位于所述容纳空间内；所述固定部固定于所述副底壁，所述折环与所述外壁间隔设置。Preferably, the basin frame includes a bottom wall, an outer wall bent and extended from the bottom wall away from the periphery of the magnetic circuit system toward the diaphragm, and is bounded by the bottom wall close to the periphery of the magnetic circuit system. The inner wall bent and extended by the vibrating membrane and the auxiliary bottom wall formed by bending and extending the outer wall in the direction of the magnetic circuit system and arranged parallel to the bottom wall, the outer walls are arranged around the inner wall and are spaced apart from each other; The inner wall is surrounded to form an accommodating space, the magnetic circuit system is at least partially located in the accommodating space; the fixing part is fixed to the auxiliary bottom wall, and the folding ring is arranged at intervals from the outer wall.
优选的，所述外壁设有贯穿其上的通孔。Preferably, the outer wall is provided with a through hole penetrating therethrough.
优选的，所述磁路***包括固定于所述盆架的磁碗以及收容固定于所述磁碗内的磁钢单元；Preferably, the magnetic circuit system includes a magnetic bowl fixed to the basin frame and a magnetic steel unit accommodating and fixed in the magnetic bowl;
所述磁碗包括支撑固定于所述盆架的磁碗底壁以及由所述磁碗底壁周缘向靠近所述振膜方向弯折延伸的磁碗侧壁，所述磁钢单元固定于所述磁碗底壁并与所述磁碗侧壁间隔形成所述磁间隙。The magnetic bowl includes a bottom wall of the magnetic bowl supported and fixed to the frame, and a side wall of the magnetic bowl bent and extended from the periphery of the bottom wall of the magnetic bowl in a direction close to the diaphragm, and the magnetic steel unit is fixed to the bottom wall of the magnetic bowl. The bottom wall of the magnetic bowl is spaced from the side wall of the magnetic bowl to form the magnetic gap.
优选的，所述磁钢单元包括固定于所述磁碗底壁的第一磁钢、叠设于所述第一磁钢的极芯以及叠设于所述极芯远离所述第一磁钢一侧的第二磁钢。Preferably, the magnetic steel unit includes a first magnetic steel fixed to the bottom wall of the magnetic bowl, a pole core superimposed on the first magnetic steel, and a pole core superimposed on the pole core away from the first magnetic steel The second magnet on one side.
与相关技术相比，本实用新型的发声器件中，所述振膜包括球顶以及固定于所述球顶靠近所述磁路***一侧的折环，所述折环环绕所述音圈组件设置；所述折环包括固定于所述球顶的振动部、由所述振动部的周缘弯折延伸且呈环状的折环部以及由所述折环部远离所述振动部的一侧弯折延伸并固定于所述盆架的固定部；所述折环部沿垂直于所述振膜的振动方向弯曲凸出呈弧形状。即本申请将折环结构设置于球顶靠近磁路***一侧并环绕音圈组件设置，如此，可以有效利用整个发声器件的空间；使得所述球顶的面积达到最大化，也就是说提升了发声器件的有效振动面积（SD），从而提高了发声器件的响度。并且，设置在球顶靠近磁路***一侧的折环在振动时同样也能够推动空气进一步提升响度。Compared with the related art, in the sound generating device of the present invention, the diaphragm includes a dome and a folding ring fixed on the side of the dome close to the magnetic circuit system, and the folding ring surrounds the voice coil assembly The folding ring includes a vibrating portion fixed to the dome, a ring-shaped folding ring portion bent and extending from the periphery of the vibrating portion, and a side away from the vibrating portion by the folding ring portion The bending part extends and is fixed to the fixing part of the basin frame; the folding ring part is bent and protruded in an arc shape along a vibration direction perpendicular to the vibration diaphragm. That is, in this application, the folding ring structure is arranged on the side of the dome close to the magnetic circuit system and arranged around the voice coil assembly. In this way, the space of the entire sound emitting device can be effectively used; the area of the dome is maximized, that is to say, The effective vibration area (SD) of the sounding device is improved, thereby increasing the loudness of the sounding device. Moreover, the folding ring arranged on the side of the dome close to the magnetic circuit system can also push the air to further increase the loudness when vibrating.
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：In order to more clearly explain the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings needed in the description of the embodiments. Obviously, the drawings in the following description are only some implementations of the present utility model. For example, for those of ordinary skill in the art, without creative work, other drawings can be obtained based on these drawings, among which:
图1为本实用新型发声器件的立体结构示意图；Figure 1 is a schematic diagram of the three-dimensional structure of the sound generating device of the present invention;
图2为本实用新型发声器件的部分立体结构分解图；Figure 2 is an exploded view of a part of the three-dimensional structure of the sound device of the present invention;
图3为沿图1中A-A线的剖示图；Figure 3 is a cross-sectional view taken along line A-A in Figure 1;
图4为本实用新型发声器件振膜的立体结构示意图。Fig. 4 is a schematic diagram of the three-dimensional structure of the diaphragm of the sound generating device of the present invention.
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。The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, not all of them. Examples. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the scope of protection of the present utility model.
请同时参阅图1-4，本实用新型提供了一种发声器件100，其包括盆架1、支撑于所述盆架1的振动***2以及驱动所述振动***2振动发声的磁路***3，所述磁路***3具有磁间隙30。所述振动***2包括振膜21和插设于所述磁间隙30且固定于所述振膜21的音圈组件22。Please refer to FIGS. 1-4 at the same time. The present invention provides a sound generating device 100, which includes a basin frame 1, a vibration system 2 supported on the basin frame 1, and a magnetic circuit system 3 that drives the vibration system 2 to vibrate and produce sound. , The magnetic circuit system 3 has a magnetic gap 30. The vibration system 2 includes a diaphragm 21 and a voice coil assembly 22 inserted in the magnetic gap 30 and fixed to the diaphragm 21.
所述盆架1包括底壁11、由所述底壁11远离所述磁路***3的周缘向所述振膜21弯折延伸的外壁12、由所述底壁11靠近所述磁路***3的周缘向所述振膜21弯折延伸的内壁13以及由所述外壁12向所述磁路***3方向弯折延伸形成且与所述底壁11平行设置的副底壁14，所述外壁12环绕所述内壁13设置且相互间隔，所述内壁13围设形成容纳空间10；所述外壁12设有贯穿其上的通孔120，所述通孔120将所述发声器件100的内部与外部连通，用于提高发声器件100的泄露，平衡内外部的气压。The basin frame 1 includes a bottom wall 11, an outer wall 12 bent and extended from the bottom wall 11 away from the periphery of the magnetic circuit system 3 toward the diaphragm 21, and the bottom wall 11 is close to the magnetic circuit system The inner wall 13 bent and extended toward the diaphragm 21 and the secondary bottom wall 14 formed by bending and extending the outer wall 12 in the direction of the magnetic circuit system 3 and arranged parallel to the bottom wall 11, the The outer wall 12 surrounds the inner wall 13 and is spaced apart from each other. The inner wall 13 encloses and forms an accommodation space 10; the outer wall 12 is provided with a through hole 120 penetrating therethrough, and the through hole 120 connects the inside of the sound device 100 It communicates with the outside and is used to increase the leakage of the sound generating device 100 and balance the air pressure inside and outside.
所述振膜21包括球顶211以及固定于所述球顶211靠近所述磁路***3一侧的折环212，所述折环212环绕所述音圈组件22设置；所述折环212包括固定于所述球顶211的振动部2121、由所述振动部2121的周缘弯折延伸且呈环状的折环部2122、由所述折环部2122远离所述振动部2121的一侧弯折延伸并固定于所述盆架1的固定部2123，所述折环部2122沿垂直于所述振膜21的振动方向弯曲凸出呈弧形状。在本实施方式中，所述折环部2122沿所述振膜21的振动方向向所述球顶211的正投影完全落入所述球顶211；所述折环部2122沿垂直于所述振膜21的振动方向向靠近所述音圈组件22弯曲凸出。The diaphragm 21 includes a dome 211 and a folding ring 212 fixed on the side of the dome 211 close to the magnetic circuit system 3, the folding ring 212 is arranged around the voice coil assembly 22; the folding ring 212 It includes a vibrating portion 2121 fixed to the dome 211 and a ring-shaped folding ring portion 2122 extending from the periphery of the vibrating portion 2121 and a side away from the vibrating portion 2121 by the folding ring portion 2122 Bending, extending and being fixed to the fixing portion 2123 of the basin frame 1, the folding ring portion 2122 is curved and protruding in an arc shape along the vibration direction perpendicular to the vibration diaphragm 21. In this embodiment, the orthographic projection of the folding ring portion 2122 to the dome 211 along the vibration direction of the diaphragm 21 completely falls into the dome 211; The vibration direction of the diaphragm 21 bends and protrudes toward the voice coil assembly 22.
如上所述的折环部212的结构设置，有效的利用了发声器件100的空间，使得振动***2的振动面积达到最大化，从而提高了发声器件的响度。The structure of the folding ring portion 212 as described above effectively utilizes the space of the sound emitting device 100, maximizes the vibration area of the vibration system 2 and thereby improves the loudness of the sound emitting device.
本实施例中，所述振动部2121设有贯穿所述振动部的开口21210，所述球顶211覆盖所述开口21210；所述音圈组件22靠近所述振膜21的一端与所述球顶211连接以驱动所述振膜21振动发声。In this embodiment, the vibrating part 2121 is provided with an opening 21210 penetrating the vibrating part, and the dome 211 covers the opening 21210; the voice coil assembly 22 is close to the end of the diaphragm 21 and the ball The top 211 is connected to drive the diaphragm 21 to vibrate and produce sound.
具体的，所述固定部2123固定于所述副底壁14，且所述折环212与所述外壁12间隔设置。折环212因与所述外壁12间隔设置，当所述振膜21振动时，使得所述折环212与所述外壁12之间的空气随之被推动，发声器件100的响度进一步提升。Specifically, the fixing portion 2123 is fixed to the auxiliary bottom wall 14, and the folding ring 212 is spaced from the outer wall 12. Since the folding ring 212 is spaced from the outer wall 12, when the diaphragm 21 vibrates, the air between the folding ring 212 and the outer wall 12 is pushed along with it, and the loudness of the sound device 100 is further improved.
所述音圈组件22插设于所述磁间隙30内并与所述球顶211连接以驱动所述振膜21振动发声。The voice coil assembly 22 is inserted into the magnetic gap 30 and connected to the dome 211 to drive the diaphragm 21 to vibrate and produce sound.
具体的，所述音圈组件22包括固定于所述球顶211靠近所述磁路***3一侧的骨架221以及绕设于所述骨架221的音圈222，所述音圈222至少部分***至所述磁间隙30内。Specifically, the voice coil assembly 22 includes a skeleton 221 fixed on the side of the dome 211 close to the magnetic circuit system 3 and a voice coil 222 wound around the skeleton 221, and the voice coil 222 is at least partially inserted Into the magnetic gap 30.
所述磁路***3至少部分位于所述容纳空间10内，其包括固定于所述盆架1的磁碗31以及收容固定于所述磁碗31内的磁钢单元32。The magnetic circuit system 3 is at least partially located in the accommodating space 10 and includes a magnetic bowl 31 fixed to the basin frame 1 and a magnetic steel unit 32 accommodating and fixed in the magnetic bowl 31.
所述磁碗31包括支撑固定于所述盆架1的磁碗底壁311以及由所述磁碗底壁311向靠近所述振膜21方向弯折延伸的磁碗侧壁312，所述磁钢单元32固定于所述磁碗底壁311并与所述磁碗侧壁312间隔形成所述磁间隙30。The magnetic bowl 31 includes a magnetic bowl bottom wall 311 supported and fixed to the basin frame 1, and a magnetic bowl side wall 312 bent and extended from the magnetic bowl bottom wall 311 in a direction close to the diaphragm 21. The magnetic bowl The steel unit 32 is fixed to the bottom wall 311 of the magnetic bowl and is spaced from the side wall 312 of the magnetic bowl to form the magnetic gap 30.
所述磁钢单元32包括固定于所述磁碗底壁311的第一磁钢321、叠设于所述第一磁钢321的极芯322以及叠设于所述极芯322远离所述第一磁钢321一侧的第二磁钢323。The magnetic steel unit 32 includes a first magnetic steel 321 fixed to the bottom wall 311 of the magnetic bowl, a pole core 322 stacked on the first magnetic steel 321, and a pole core 322 stacked on the pole core 322 away from the first magnet. A second magnet 323 on one side of the magnet 321.
与相关技术相比，本实用新型的发声器件中，所述振膜包括球顶以及固定于所述球顶靠近所述磁路***一侧的折环，所述折环环绕所述音圈组件设置；所述折环包括固定于所述球顶的振动部、由所述振动部的周缘弯折延伸且呈环状的折环部以及由所述折环部远离所述振动部的一侧弯折延伸并固定于所述盆架的固定部；所述折环部沿垂直于所述振膜的振动方向弯曲凸出呈弧形状。即本申请将折环结构设置于球顶靠近磁路***一侧并环绕音圈组件设置，如此，可以有效利用整个发声器件的空间；使得所述球顶的面积达到最大化，也就是说提升了发声器件的有效振动面积（SD），从而提高了发声器件的响度。并且，设置在球顶靠近磁路***一侧的折环在振动时同样也能够推动空气进一步提升响度。Compared with the related art, in the sound generating device of the present invention, the diaphragm includes a dome and a folding ring fixed on the side of the dome close to the magnetic circuit system, and the folding ring surrounds the voice coil assembly The folding ring includes a vibrating portion fixed to the dome, a ring-shaped folding ring portion bent and extending from the periphery of the vibrating portion, and a side away from the vibrating portion by the folding ring portion The bending part extends and is fixed to the fixing part of the basin frame; the folding ring part is bent and protruded in an arc shape along a vibration direction perpendicular to the vibration diaphragm. That is, in this application, the folded ring structure is arranged on the side of the dome close to the magnetic circuit system and arranged around the voice coil assembly. In this way, the space of the entire sound emitting device can be effectively used; the area of the dome is maximized, that is to say, it is improved. The effective vibration area (SD) of the sounding device is improved, thereby improving the loudness of the sounding device. Moreover, the folding ring arranged on the side of the dome close to the magnetic circuit system can also push the air to further increase the loudness when vibrating.
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。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 scope of protection of the utility model.
Claims (9)
- 一种发声器件，其包括盆架、支撑于所述盆架的振动***以及驱动所述振动***振动发声的磁路***，所述磁路***具有磁间隙，所述振动***包括振膜和插设于所述磁间隙且固定于所述振膜的音圈组件， A sound generating device includes a basin frame, a vibration system supported on the basin frame, and a magnetic circuit system that drives the vibration system to vibrate and produce sound. The magnetic circuit system has a magnetic gap, and the vibration system includes a diaphragm and an insert. A voice coil assembly arranged in the magnetic gap and fixed to the diaphragm,其特征在于，所述振膜包括球顶以及固定于所述球顶靠近所述磁路***一侧的折环，所述折环环绕所述音圈组件设置；所述折环包括固定于所述球顶的振动部、由所述振动部的周缘弯折延伸且呈环状的折环部以及由所述折环部远离所述振动部的一侧弯折延伸并固定于所述盆架的固定部；所述折环部沿垂直于所述振膜的振动方向弯曲凸出呈弧形状。It is characterized in that the diaphragm includes a dome and a folding ring fixed on the side of the dome close to the magnetic circuit system, the folding ring is arranged around the voice coil assembly; the folding ring includes a The vibrating part of the dome, the ring-shaped folding ring part that is bent and extended from the periphery of the vibration part, and the side of the folding ring part away from the vibration part is bent and extended and fixed to the basin frame The fixed portion; the folding ring portion is curved and protruding in an arc shape along a direction perpendicular to the vibration direction of the diaphragm.
- 根据权利要求1所述的发声器件，其特征在于，所述折环部沿垂直于所述振膜的振动方向向靠近所述音圈组件弯曲凸出。4. The sound generating device according to claim 1, wherein the folding ring portion is curved and protruded toward the voice coil assembly along a vibration direction perpendicular to the diaphragm.
- 根据权利要求2所述的发声器件，其特征在于，所述折环部沿所述振膜的振动方向向所述球顶的正投影完全落入所述球顶。3. The sound emitting device according to claim 2, wherein the orthographic projection of the folding ring portion to the dome along the vibration direction of the diaphragm completely falls into the dome.
- 根据权利要求1所述的发声器件，其特征在于，所述振动部设有贯穿所述振动部的开口，所述球顶覆盖所述开口；所述音圈组件靠近所述振膜的一端与所述球顶连接以驱动所述振膜振动发声。The sounding device according to claim 1, wherein the vibrating part is provided with an opening penetrating the vibrating part, and the dome covers the opening; the voice coil assembly is close to the end of the diaphragm and The dome is connected to drive the diaphragm to vibrate and produce sound.
- 根据权利要求4所述的发声器件，其特征在于，所述音圈组件包括固定于所述球顶靠近所述磁路***一侧的骨架以及绕设于所述骨架的音圈，所述音圈至少部分***至所述磁间隙内。The sounding device according to claim 4, wherein the voice coil assembly includes a skeleton fixed to the dome on a side close to the magnetic circuit system and a voice coil wound around the skeleton, and the voice coil The ring is at least partially inserted into the magnetic gap.
- 根据权利要求1所述的发声器件，其特征在于，所述盆架包括底壁、由所述底壁远离所述磁路***的周缘向所述振膜弯折延伸的外壁、由所述底壁靠近所述磁路***的周缘向所述振膜弯折延伸的内壁以及由所述外壁向所述磁路***方向弯折延伸形成且与所述底壁平行设置的副底壁，所述外壁环绕所述内壁设置且相互间隔；所述内壁围设形成容纳空间，所述磁路***至少部分位于所述容纳空间内；所述固定部固定于所述副底壁，所述折环与所述外壁间隔设置。The sounding device according to claim 1, wherein the basin frame includes a bottom wall, an outer wall bent and extended from the bottom wall away from the periphery of the magnetic circuit system toward the diaphragm, and the bottom wall The wall is close to the inner wall bent and extended toward the diaphragm of the magnetic circuit system, and a secondary bottom wall formed by bending and extending the outer wall in the direction of the magnetic circuit system and arranged parallel to the bottom wall, the The outer wall is arranged around the inner wall and is spaced apart from each other; the inner wall is surrounded to form an accommodation space, and the magnetic circuit system is at least partially located in the accommodation space; the fixing part is fixed to the auxiliary bottom wall, and the folding ring and The outer walls are arranged at intervals.
- 根据权利要求6所述的发声器件，其特征在于，所述外壁设有贯穿其上的通孔。The sound emitting device according to claim 6, wherein the outer wall is provided with a through hole penetrating therethrough.
- 根据权利要求1所述的发声器件，其特征在于，所述磁路***包括固定于所述盆架的磁碗以及收容固定于所述磁碗内的磁钢单元；The sounding device according to claim 1, wherein the magnetic circuit system comprises a magnetic bowl fixed to the basin frame and a magnetic steel unit accommodating and fixed in the magnetic bowl;所述磁碗包括支撑固定于所述盆架的磁碗底壁以及由所述磁碗底壁周缘向靠近所述振膜方向弯折延伸的磁碗侧壁，所述磁钢单元固定于所述磁碗底壁并与所述磁碗侧壁间隔形成所述磁间隙。The magnetic bowl includes a bottom wall of the magnetic bowl supported and fixed to the frame, and a side wall of the magnetic bowl bent and extended from the periphery of the bottom wall of the magnetic bowl in a direction close to the diaphragm, and the magnetic steel unit is fixed to the bottom wall of the magnetic bowl. The bottom wall of the magnetic bowl is spaced from the side wall of the magnetic bowl to form the magnetic gap.
- 根据权利要求8所述的发声器件，其特征在于，所述磁钢单元包括固定于所述磁碗底壁的第一磁钢、叠设于所述第一磁钢的极芯以及叠设于所述极芯远离所述第一磁钢一侧的第二磁钢。The sounding device according to claim 8, wherein the magnetic steel unit comprises a first magnetic steel fixed to the bottom wall of the magnetic bowl, a pole core superimposed on the first magnetic steel, and a pole core superimposed on the first magnetic steel. The pole core is away from the second magnet on the side of the first magnet.
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| PCT/CN2019/129869 WO2021134186A1 (en) | 2019-12-30 | 2019-12-30 | Sound production device |
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| PCT/CN2019/129869 WO2021134186A1 (en) | 2019-12-30 | 2019-12-30 | Sound production device |
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| US20160198261A1 (en) * | 2015-01-07 | 2016-07-07 | Aac Acoustic Technologies (Shenzhen) Co., Ltd. | Speaker |
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