WO2022007166A1 - 发声器件 - Google Patents
发声器件 Download PDFInfo
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- WO2022007166A1 WO2022007166A1 PCT/CN2020/113929 CN2020113929W WO2022007166A1 WO 2022007166 A1 WO2022007166 A1 WO 2022007166A1 CN 2020113929 W CN2020113929 W CN 2020113929W WO 2022007166 A1 WO2022007166 A1 WO 2022007166A1
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- fixed
- skeleton
- sound
- frame
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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
- H04R9/02—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 sound and electricity, in particular to a sound producing device.
- a related art sound-generating device includes a basin frame, a vibration system fixed on the basin frame, and a magnetic circuit system that drives the vibration system to vibrate and emit sound and has a magnetic gap;
- the vibration system includes a vibrating membrane, which is inserted into the magnetic gap.
- the vibrating diaphragm includes two and are respectively arranged on opposite sides of the magnetic circuit system at intervals, the One end of the skeleton is fixed on the diaphragm, and the other end is fixed on the voice coil; the voice coil drives the diaphragm to vibrate and produce sound through the skeleton.
- the frame may affect the vibration of the diaphragm; that is, the frame occupies the vibration area of the diaphragm.
- the vibration space of the membrane leads to the poor sound performance of the product.
- the purpose of the utility model is to provide a sounding device with better sounding effect.
- the present utility model provides a sounding device, which includes a basin frame, a vibration system respectively fixed to the basin frame and a magnetic circuit system for driving the vibration system to vibrate and sound, and the magnetic circuit system has a magnetic gap.
- the vibration system includes a vibrating membrane fixed on the basin frame and a voice coil inserted in the magnetic gap to drive the vibrating membrane to vibrate,
- the vibrating membranes include two and are respectively disposed on opposite sides of the magnetic circuit system at intervals, each of the vibrating membranes includes a vibrating portion, a ring portion extending from the periphery of the vibrating portion, and a ring portion extending from the periphery of the vibrating portion. a fixed part extending away from the side of the vibrating part,
- the fixing part includes a first fixing part located on the side of the vibrating part away from the voice coil and fixed to the basin frame, and a second fixing part opposite to the first fixing part and fixed to the magnetic circuit system a third fixing part that connects the first fixing part and the second fixing part and is fixed to the basin frame;
- the vibration system also includes a skeleton for suspending the voice coil in the magnetic gap, the skeleton includes two skeleton bodies respectively fixed on one side of the two diaphragms close to the magnetic circuit system, and two skeleton bodies. a first skeleton connecting arm formed by each of the skeleton body extending toward the voice coil direction, the first skeleton connecting arm extending into the magnetic gap and connecting with the voice coil;
- the vibrating membrane is recessed from the side close to the skeleton to the direction away from the skeleton to form an avoidance step, and the avoidance step and the first skeleton connecting arm are arranged to provide a vibration space for the first skeleton connecting arm .
- the recessed depth of the avoidance step is less than or equal to the height of the folded ring portion along the vibration direction.
- the magnetic circuit system includes a magnetic yoke fixed on the side of the basin frame away from the vibrating membrane, a main magnetic steel assembly fixed on the magnetic yoke, and a main magnetic steel assembly spaced apart from the main magnetic steel assembly.
- the secondary magnetic steel component of the magnetic gap, the second fixing portion is fixed to the secondary magnetic steel component.
- the voice coil has a rectangular structure with rounded corners, each of the skeleton body extends to form two of the first skeleton connecting arms, and the two first skeleton connecting arms are respectively connected to adjacent
- the avoidance steps are disposed at opposite ends of the second fixing portion.
- the skeleton further includes two second skeleton connecting arms that connect the two skeleton bodies and are disposed opposite to each other.
- the two second skeleton connecting arms are respectively located outside the two short axes of the voice coil, and the first skeleton connecting arms are connected to the adjacent second skeleton connecting arms.
- the second fixing portion includes a first section fixed to the secondary magnetic steel assembly, and is bent and extended from an end of the first section close to the first frame connecting arm in a direction away from the magnetic circuit system
- the second section of the second section, the third section that is bent and extended from the end of the second section away from the first section and is spaced from the first frame connecting arm, and the third section is far away from the second section.
- One end of the segment extends toward the direction close to the third fixing part and is connected to the fourth segment, the second segment, the third segment and the fourth segment together enclose the avoidance Steps; one end of the third section and the fourth section away from the second section is fixed to the basin frame.
- the sounding device further includes an upper cover covering the second fixing portion, the upper cover including a cover plate spaced from the second fixing portion, and a cover plate extending from the periphery of the cover plate to the magnetic
- the road system is bent and extended in the direction of the road system and is supported and fixed on the surrounding wall of the auxiliary magnetic steel assembly.
- the surrounding wall is provided with a gap corresponding to the avoidance step, and the avoidance step is accommodated at the gap and is connected with the surrounding wall. connect.
- the vibration system further includes an elastic conductive member fixed on the side of the basin frame away from the vibrating membrane, the elastic conductive member includes a main body of the elastic conductive member, and two opposite sides formed by the main body of the elastic conductive member
- the first connecting part and the second connecting part are respectively extended; the first connecting part is fixed on the basin frame, the second connecting part is fixed on the end of the frame body away from the vibrating part, the first connecting part is
- the two connecting parts are provided with pads electrically connected to the voice coil.
- the vibration system further includes an auxiliary diaphragm attached to the side of the elastic conductive member away from the diaphragm.
- the diaphragm is recessed from the side close to the skeleton to the direction away from the skeleton to form an avoidance step, and the avoidance step is connected to the arm of the first skeleton.
- the first skeleton connecting arm is arranged to provide a vibration space; when the diaphragm vibrates greatly, because the diaphragm is provided with the avoidance step corresponding to the first skeleton connecting arm, the diaphragm is The larger the vibration space, the better the acoustic performance of the sound-emitting device; that is, with this structure, the internal structure of the sound-emitting device is reasonably arranged without increasing the height of the sound-emitting device, so that the acoustic performance of the sound-emitting device is better.
- space utilization is greater.
- Fig. 1 is the stereo structure schematic diagram of the sound-emitting device of the present invention
- Fig. 2 is the three-dimensional structure exploded schematic diagram of the sound-emitting device of the present invention
- FIG. 3 is a cross-sectional view of the sound-emitting device of the present invention.
- FIG. 4 is a schematic diagram of the diaphragm of the present invention.
- the present invention provides a sound-generating device 100
- the sound-generating device 100 includes a basin frame 1, a vibration system 2 respectively fixed to the basin frame 1, and a vibration system 2 that drives the vibration system 2 to vibrate and emit sound.
- the magnetic circuit system 3 and the upper cover 4 , the magnetic circuit system 3 has a magnetic gap 30 .
- the vibration system 2 includes a diaphragm 21 fixed to the basin frame 1 , a voice coil 22 for driving the diaphragm 21 to vibrate, a frame 23 , an elastic conductive member 24 , an auxiliary frame 25 , an auxiliary diaphragm 26 and
- the dome 27 and the voice coil 22 are inserted in the magnetic gap 30 and have a rectangular structure with rounded corners.
- the vibrating membranes 21 include two and are respectively disposed on opposite sides of the magnetic circuit system 3 at intervals. Specifically, the two vibrating membranes 21 are disposed at positions close to two long axis sides of the voice coil 22 .
- Each of the vibrating membranes 21 includes a vibrating portion 211 , a ring portion 212 extending from the periphery of the vibrating portion 211 and surrounding the vibrating portion 211 , and a side of the ring portion 212 away from the vibrating portion 211 .
- the fixing portion 213 of the basin frame 1 is bent, extended and fixed.
- the folding ring portion 212 is recessed in a direction away from the magnetic circuit system 3 .
- the vibrating part 211 includes a through hole 2110 therethrough, and the dome 27 is covered on the side of the through hole close to the magnetic circuit system.
- each diaphragm 21 includes a first fixing portion 2131 located on the side of the vibration portion 211 away from the voice coil 22 and fixed to the basin frame 1 , and the first fixing portion 2131
- the part 2131 is opposite to and fixed to the second fixing part 2132 of the magnetic circuit system 3 and the third fixing part 2133 that connects the first fixing part 2131 and the second fixing part 2132 and is fixed to the basin frame 1, That is, the first fixing part 2131 and the third fixing part 2133 are fixed to the basin frame 1, and the second fixing part 2132 is fixed to the magnetic circuit system 3, so that the diaphragm 21, the basin frame 1 and the magnetic circuit system 3 together form a sealed sound. lumen 10.
- the skeleton 23 is used for suspending the voice coil 22 in the magnetic gap 30 , and the skeleton 23 includes two skeleton bodies 231 , two skeleton bodies 231 , which are respectively fixed on one side of the two diaphragms 21 close to the magnetic circuit system 3 .
- a first skeleton connecting arm 232 formed by two skeleton bodies 231 extending toward the voice coil 22 respectively, two second skeleton connecting arms 233 connecting the two skeleton bodies 231 and arranged oppositely, and further , the two second frame connecting arms 233 are respectively located outside the two short axes of the voice coil 22, the first frame connecting arms 232 are connected to the adjacent second frame connecting arms 233, the The first frame connecting arm 232 extends into the magnetic gap 30 and is connected with the voice coil 22 .
- each skeleton body 231 extends to form two first skeleton connecting arms 232 , and the two first skeleton connecting arms 232 are respectively connected to two adjacent ends of the long axis of the voice coil 22 . the rounded corners.
- the two first skeleton connecting arms 232 which are respectively extended from the two skeleton bodies 231 and are arranged opposite to each other are connected by the second skeleton connecting arms 233;
- the shape of the structure is used to form an avoidance space for the magnetic circuit system 3, so that the space utilization rate is better and the volume is smaller.
- the diaphragm 21 corresponds to the avoidance step 214 provided by the first frame connecting arm 232 , that is, the diaphragm 21 is recessed from the side close to the frame 23 to the direction away from the frame 23 to form the avoidance step 214 ,
- the avoidance step 214 is disposed opposite to the first frame connecting arm 232 to provide a vibration space for the first frame connecting arm 232 .
- each diaphragm 21 includes two avoidance steps 214 , and the two avoidance steps 214 are disposed at opposite ends of the second fixing portion 2132 .
- the voice coil 22 drives the diaphragm 21 to vibrate through the skeleton 23. Since the diaphragm 21 is provided with the avoidance step 214 corresponding to the first skeleton connecting arm 232, the vibration space of the diaphragm 21 becomes larger, and the Better acoustic performance.
- the recessed depth of the avoidance step 214 is less than or equal to the height of the folded ring portion 212 along the vibration direction, that is, the height of the avoidance step 214 does not exceed the height of the folded ring portion 212, ensuring the sound-emitting device. While the height of the 100 does not increase, its acoustic performance is better.
- the recessed depth of the avoidance step 214 can be flexibly adjusted according to the height of the first frame connecting arm 232 along the vibration direction, so as to improve the acoustic performance while ensuring the strength of the first frame connecting arm 232 .
- the magnetic circuit system 3 includes a magnetic yoke 31 fixed on the side of the basin frame 1 away from the diaphragm 21 , a main magnetic steel assembly 32 fixed on the magnetic yoke 31 , and the main magnetic steel assembly. 32 is spaced from the secondary magnetic steel component 33 forming the magnetic gap 30 , and the second fixing portion 2132 is fixed to the secondary magnetic steel component 33 .
- the second fixing portion 2132 can also fix the main magnetic steel component 32 .
- the second fixing portion 2132 includes a first section 21321 fixed to the secondary magnetic steel assembly 33 , and an end of the first section 21321 close to the first frame connecting arm 232 is moved away from the magnetic circuit
- a second section 21322 bent and extended in the direction of system 3 a third section 21323 bent and extended from the end of the second section 21322 away from the first section 21321 and spaced from the first frame connecting arm 232, and From the end of the third segment 21323 away from the second segment 21322, the fourth segment 21324 extends toward the third fixing portion 2133 and is connected to the third fixing portion 2133.
- the third section 21323 and the fourth section 21324 together enclose the avoidance step 214; the ends of the third section 21323 and the fourth section 21324 away from the second section 21322 are fixed to the basin rack 1.
- the upper cover 4 is used to cover the second fixing portion 2132 so that the second fixing portion 2132 is sealed and fixed to the secondary magnetic steel assembly 33 .
- the upper cover 4 includes a cover plate 41 spaced from the second fixing portion 2132 , and is bent and extended toward the magnetic circuit system 3 from the periphery of the cover plate 41 and is supported and fixed to the auxiliary magnetic steel assembly 33 .
- the surrounding wall 42 is provided with a gap 410 corresponding to the avoidance step 214, and the avoidance step 214 is accommodated at the gap 410 and connected with the surrounding wall 42, so that the upper cover 4 is connected to the avoidance step. 214 seal fixed.
- the elastic conductive member 24 includes two and is disposed corresponding to the two diaphragms 21 respectively.
- the elastic conductive member 24 includes an elastic conductive member main body 241 and a first connection formed by extending from opposite sides of the elastic conductive member main body 241 respectively.
- the first connecting portion 242 is fixed to the basin frame 1
- the second connecting portion 243 is fixed to the end of the frame body 231 away from the diaphragm 21, the first connecting portion 242 is
- the two connecting portions 243 are provided with pads 2430 that are electrically connected to the voice coil 22 .
- the auxiliary frame 25 is sandwiched between the elastic conductive member 24 and the diaphragm 21 , and opposite ends of the auxiliary frame 25 abut against the first fixing portion 2131 and the first connecting portion 242 respectively.
- the auxiliary diaphragm 26 includes two and is respectively attached to the side of the elastic conductive member 24 away from the diaphragm 21 .
- the diaphragm is recessed from the side close to the skeleton to the direction away from the skeleton to form an avoidance step, and the avoidance step is connected to the arm of the first skeleton.
- the first skeleton connecting arm is arranged to provide a vibration space; when the diaphragm vibrates greatly, because the diaphragm is provided with the avoidance step corresponding to the first skeleton connecting arm, the diaphragm is The larger the vibration space, the better the acoustic performance of the sound-emitting device; that is, with this structure, the internal structure of the sound-emitting device is reasonably arranged without increasing the height of the sound-emitting device, so that the acoustic performance of the sound-emitting device is better.
- space utilization is greater.
- the present utility model provides an embodiment of the present utility model as described above, which is not intended to limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the contents of the specification and accompanying drawings of the present utility model, or Directly or indirectly used in other related technical fields, are all similarly included in the scope of patent protection of the present invention.
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
本实用新型提供了一种发声器件，其包括盆架、分别固定于盆架的振动系统和驱动振动系统振动发声的磁路系统，磁路系统具有磁间隙，振动系统包括振膜及音圈，振膜包括两个且分别设置于磁路系统的相对两侧，每一振膜包括振动部、折环部以及固定部，固定部包括固定于盆架的第一固定部、固定于磁路系统的第二固定部以及连接第一固定部和第二固定部且固定于盆架的第三固定部；振动系统还包括骨架，骨架包括分别固定于两个振膜的两个骨架本体以及由两个骨架本体分别延伸形成且与音圈连接的第一骨架连接臂；振膜向远离骨架方向凹陷形成避让台阶，避让台阶为第一骨架连接臂提供振动空间。与相关技术相比，本实用新型的发声器件发声效果更好。
Description
本实用新型涉及声电领域，尤其涉及一种发声器件。
随着互联网时代的到来，移动终端设备的数量不断上升。而在移动设备中，手机无疑是最常见且最便携的移动终端设备。用于播放音乐等声音的发声器件被大量的运用到手机等移动终端设备中，而发声器件中的振动系统尤为重要，整个发声器件通过所述振动系统振动发声。
相关技术发声器件包括盆架、固定于所述盆架上的振动系统以及驱动所述振动系统振动发声且具有磁间隙的磁路系统；所述振动系统包括振膜、插设于所述磁间隙以驱动所述振膜振动的音圈以及将所述音圈悬置于所述磁间隙的骨架；所述振膜包括两个且分别间隔设置于所述磁路系统的相对两侧，所述骨架的一端固定于所述振膜，其另一端固定于所述音圈；所述音圈通过所述骨架驱动所述振膜振动发声。
然而，相关技术中，随着所述振膜的振幅要求的提高，在所述振膜大幅度振动下，所述骨架可能会影响所述振膜的振动；即所述骨架占据了所述振膜的振动空间，导致产品的发声性能不好。
因此，有必要提供一种新的发声器件解决上述问题。
本实用新型的目的在于提供一种发声效果更好的发声器件。
为达到上述目的，本实用新型提供一种发声器件，其包括盆架、分别固定于所述盆架的振动系统和驱动所述振动系统振动发声的磁路系统，所述磁路系统具有磁间隙，所述振动系统包括固定于所述盆架的振膜及插设于所述磁间隙以驱动所述振膜振动的音圈，
所述振膜包括两个且分别间隔设置于所述磁路系统的相对两侧，每一所述振膜包括振动部、由所述振动部的周缘延伸的折环部以及由所述折环部远离所述振动部的一侧延伸的固定部，
所述固定部包括位于所述振动部远离所述音圈一侧且固定于所述盆架的第一固定部、与所述第一固定部相对且固定于所述磁路系统的第二固定部以及连接所述第一固定部与所述第二固定部且固定于所述盆架的第三固定部；
所述振动系统还包括将所述音圈悬置于所述磁间隙的骨架，所述骨架包括分别固定于两个所述振膜靠近所述磁路系统一侧的两个骨架本体以及由两个所述骨架本体分别向所述音圈方向延伸形成的第一骨架连接臂，所述第一骨架连接臂延伸至所述磁间隙内并与所述音圈连接；
所述振膜由其靠近所述骨架的一侧向远离所述骨架方向凹陷形成避让台阶，所述避让台阶与所述第一骨架连接臂正对设置为所述第一骨架连接臂提供振动空间。
优选的，所述避让台阶的凹陷深度小于或等于所述折环部沿所述振动方向的高度。
优选的，所述磁路系统包括固定于所述盆架远离所述振膜一侧的磁轭、固定设置于所述磁轭上的主磁钢组件、与所述主磁钢组件间隔形成所述磁间隙的副磁钢组件，所述第二固定部固定于所述副磁钢组件。
优选的，所述音圈呈带圆角的矩形结构，每一所述骨架本体延伸形成两个所述第一骨架连接臂，且该两个所述第一骨架连接臂分别连接至相邻的所述音圈的长轴两端的两个所述圆角，所述避让台阶设置于所述第二固定部的相对两端。
优选的，所述骨架还包括连接两个所述骨架本体且呈相对设置的两个第二骨架连接臂。
优选的，两个所述第二骨架连接臂分别位于所述音圈的两个短轴的外侧，所述第一骨架连接臂连接于相邻的所述第二骨架连接臂。
优选的，所述第二固定部包括固定于所述副磁钢组件的第一段、由所述第一段靠近所述第一骨架连接臂的一端向远离所述磁路系统方向弯折延伸的第二段、由所述第二段的远离所述第一段的一端弯折延伸且与所述第一骨架连接臂间隔设置的第三段以及由所述第三段远离所述第二段的一端向靠近所述第三固定部方向延伸且与所述第三固定部连接的第四段，所述第二段、所述第三段以及所述第四段共同围成所述避让台阶；所述第三段及所述第四段远离所述第二段的一端均固定于所述盆架。
优选的，所述发声器件还包括盖设于所述第二固定部的上盖，所述上盖包括与所述第二固定部间隔设置的盖板以及由所述盖板周缘向所述磁路系统方向弯折延伸并支撑固定于所述副磁钢组件的围壁，所述围壁对应所述避让台阶处设有缺口，所述避让台阶收容于所述缺口处且与所述围壁连接。
优选的，所述振动系统还包括固定于所述盆架远离所述振膜一侧的弹性导电件，所述弹性导电件包括弹性导电件主体、以及由所述弹性导电件主体的相对两侧分别延伸形成的第一连接部和第二连接部；所述第一连接部固定于所述盆架，所述第二连接部固定于所述骨架本体远离所述振动部的一端，所述第二连接部设有与所述音圈电连接的焊盘。
优选的，所述振动系统还包括贴设于所述弹性导电件远离所述振膜一侧的辅助振膜。
与相关技术相比，本实用新型的发声器件中，所述振膜由其靠近所述骨架的一侧向远离所述骨架方向凹陷形成避让台阶，所述避让台阶与所述第一骨架连接臂正对设置为所述第一骨架连接臂提供振动空间；当所述振膜大幅度振动时，由于所述振膜对应所述第一骨架连接臂设有所述避让台阶，使得所述振膜振动空间变大，发声器件的声学性能更好；即采用此种结构，在保证不增加所述发声器件的高度情况下，合理布局所述发声器件内部结构，使得所述发声器件的声学性能更好，空间利用率更大。
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示意图；
图3为本实用新型发声器件的剖视图；
图4为本实用新型振膜的示意图。
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。
请参考图1-4所示，本实用新型提供一种发声器件100，该发声器件100包括盆架1、分别固定于所述盆架1的振动系统2和驱动所述振动系统2振动发声的磁路系统3以及上盖4，所述磁路系统3具有磁间隙30。
具体的，所述振动系统2包括固定于所述盆架1的振膜21、驱动所述振膜21振动的音圈22、骨架23、弹性导电件24、辅助骨架25、辅助振膜26以及球顶27，所述音圈22插设于所述磁间隙30内且呈带圆角的矩形结构。所述振膜21包括两个且分别间隔设置于所述磁路系统3的相对两侧，具体的，两个所述振膜21设置于靠近音圈22的两个长轴边位置。
每一所述振膜21包括振动部211、由所述振动部211的周缘延伸并环绕所述振动部211的折环部212、由所述折环部212远离所述振动部211的一侧弯折延伸并固定于所述盆架1的固定部213，本实施例中，所述折环部212沿向远离所述磁路系统3方向凹陷。
所述振动部211包括贯穿其上的通孔2110，所述球顶27盖设于所述通孔靠近所述磁路系统一侧。
具体的，每一所述振膜21的固定部213包括位于所述振动部211远离所述音圈22一侧且固定于所述盆架1的第一固定部2131、与所述第一固定部2131相对且固定于所述磁路系统3的第二固定部2132以及连接所述第一固定部2131与所述第二固定部2132且固定于所述盆架1的第三固定部2133，即第一固定部2131和第三固定部2133固定于盆架1，第二固定部2132固定于磁路系统3，以使振膜21、盆架1以及磁路系统3共同围成密闭的发声内腔10。
骨架23用于将所述音圈22悬置于所述磁间隙30，所述骨架23包括分别固定于两个所述振膜21靠近所述磁路系统3一侧的两个骨架本体231、由两个所述骨架本体231分别向所述音圈22方向延伸形成的第一骨架连接臂232、连接两个所述骨架本体231且呈相对设置的两个第二骨架连接臂233，进一步的，两个所述第二骨架连接臂233分别位于所述音圈22的两个短轴的外侧，所述第一骨架连接臂232连接于相邻的所述第二骨架连接臂233，所述第一骨架连接臂232延伸至所述磁间隙30内并与所述音圈22连接。本实施例中，每一骨架本体231延伸形成两个所述第一骨架连接臂232，该两个第一骨架连接臂232分别连接至相邻的所述音圈22的长轴两端的两个所述圆角。两个骨架本体231分别延伸形成且呈相对设置的两个第一骨架连接臂232通过第二骨架连接臂233连接；骨架本体231、第一骨架连接臂232以及第二骨架连接臂233围成环状结构以对磁路系统3形成避让空间，使得空间利用率更好，体积更小。
所述振膜21对应所述第一骨架连接臂232设有的避让台阶214，即所述振膜21由其靠近所述骨架23的一侧向远离所述骨架23方向凹陷形成避让台阶214，所述避让台阶214与所述第一骨架连接臂232正对设置为所述第一骨架连接臂232提供振动空间。本实施例中，每一振膜21包括两个避让台阶214，两个避让台阶214设置于所述第二固定部2132的相对两端。音圈22通过骨架23驱动振膜21振动，由于所述振膜21对应所述第一骨架连接臂232设有所述避让台阶214，使得所述振膜21振动空间变大，发声器件100的声学性能更好。
更优的，所述避让台阶214的凹陷深度小于或等于所述折环部212沿所述振动方向的高度，即避让台阶214的高度未超过所述折环部212的高度，保证了发声器件100的高度不增加的同时，其声学性能更优。当然，所述避让台阶214的凹陷深度可以根据第一骨架连接臂232的沿振动方向高度灵活调整，在保证第一骨架连接臂232的强度情况下改善声学性能。
所述磁路系统3包括固定于所述盆架1远离所述振膜21一侧的磁轭31、固定设置于所述磁轭31上的主磁钢组件32、与所述主磁钢组件32间隔形成所述磁间隙30的副磁钢组件33，所述第二固定部2132固定于所述副磁钢组件33，当然所述第二固定部2132还可以固定主磁钢组件32。
具体的，所述第二固定部2132包括固定于所述副磁钢组件33的第一段21321、由所述第一段21321靠近所述第一骨架连接臂232的一端向远离所述磁路系统3方向弯折延伸的第二段21322、由所述第二段21322的远离所述第一段21321的一端弯折延伸且与所述第一骨架连接臂232间隔设置的第三段21323以及由所述第三段21323远离所述第二段21322的一端向靠近所述第三固定部2133方向延伸且与所述第三固定部2133连接的第四段21324，所述第二段21322、所述第三段21323以及所述第四段21324共同围成所述避让台阶214；所述第三段21323及所述第四段21324远离所述第二段21322的一端均固定于所述盆架1。
上盖4用于盖设于所述第二固定部2132使得第二固定部2132密封固定于所述副磁钢组件33。所述上盖4包括与所述第二固定部2132间隔设置的盖板41以及由所述盖板41周缘向所述磁路系统3方向弯折延伸并支撑固定于所述副磁钢组件33的围壁42，所述围壁42对应所述避让台阶214处设有缺口410，所述避让台阶214收容于所述缺口410处且与所述围壁42连接，使得上盖4与避让台阶214密封固定。
弹性导电件24包括两个且分别对应两个所述振膜21设置，弹性导电件24包括弹性导电件主体241、以及由所述弹性导电件主体241的相对两侧分别延伸形成的第一连接部242和第二连接部243；所述第一连接部242固定于所述盆架1，所述第二连接部243固定于所述骨架本体231远离所述振膜21的一端，所述第二连接部243设有与所述音圈22电连接的焊盘2430。
辅助骨架25夹设于所述弹性导电件24与所述振膜21之间，其相对两端分别抵接于所述第一固定部2131以及所述第一连接部242。
辅助振膜26包括两个且分别贴设于所述弹性导电件24远离所述振膜21一侧。
与相关技术相比，本实用新型的发声器件中，所述振膜由其靠近所述骨架的一侧向远离所述骨架方向凹陷形成避让台阶，所述避让台阶与所述第一骨架连接臂正对设置为所述第一骨架连接臂提供振动空间；当所述振膜大幅度振动时，由于所述振膜对应所述第一骨架连接臂设有所述避让台阶，使得所述振膜振动空间变大，发声器件的声学性能更好；即采用此种结构，在保证不增加所述发声器件的高度情况下，合理布局所述发声器件内部结构，使得所述发声器件的声学性能更好，空间利用率更大。
本实用新型提供一种以上所述仅为本实用新型的实施例，并非因此限制本实用新型的专利范围，凡是利用本实用新型说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其它相关的技术领域，均同理包括在本实用新型的专利保护范围内。
Claims (10)
- 一种发声器件，其包括盆架、分别固定于所述盆架的振动系统和驱动所述振动系统振动发声的磁路系统，所述磁路系统具有磁间隙，所述振动系统包括固定于所述盆架的振膜及插设于所述磁间隙以驱动所述振膜振动的音圈，其特征在于，所述振膜包括两个且分别间隔设置于所述磁路系统的相对两侧，每一所述振膜包括振动部、由所述振动部的周缘延伸的折环部以及由所述折环部远离所述振动部的一侧延伸的固定部，所述固定部包括位于所述振动部远离所述音圈一侧且固定于所述盆架的第一固定部、与所述第一固定部相对且固定于所述磁路系统的第二固定部以及连接所述第一固定部与所述第二固定部且固定于所述盆架的第三固定部；所述振动系统还包括将所述音圈悬置于所述磁间隙的骨架，所述骨架包括分别固定于两个所述振膜靠近所述磁路系统一侧的两个骨架本体以及由两个所述骨架本体分别向所述音圈方向延伸形成的第一骨架连接臂，所述第一骨架连接臂延伸至所述磁间隙内并与所述音圈连接；所述振膜由其靠近所述骨架的一侧向远离所述骨架方向凹陷形成避让台阶，所述避让台阶与所述第一骨架连接臂正对设置为所述第一骨架连接臂提供振动空间。
- 根据权利要求1中所述的发声器件，其特征在于，所述避让台阶的凹陷深度小于或等于所述折环部沿所述振动方向的高度。
- 根据权利要求1中所述的发声器件，其特征在于，所述磁路系统包括固定于所述盆架远离所述振膜一侧的磁轭、固定设置于所述磁轭上的主磁钢组件、与所述主磁钢组件间隔形成所述磁间隙的副磁钢组件，所述第二固定部固定于所述副磁钢组件。
- 根据权利要求3中所述的发声器件，其特征在于，所述音圈呈带圆角的矩形结构，每一所述骨架本体延伸形成两个所述第一骨架连接臂，且该两个所述第一骨架连接臂分别连接至相邻的所述音圈的长轴两端的两个所述圆角，所述避让台阶设置于所述第二固定部的相对两端。
- 根据权利要求4中所述的发声器件，其特征在于，所述骨架还包括连接两个所述骨架本体且呈相对设置的两个第二骨架连接臂。
- 根据权利要求5中所述的发声器件，其特征在于，两个所述第二骨架连接臂分别位于所述音圈的两个短轴的外侧，所述第一骨架连接臂连接于相邻的所述第二骨架连接臂。
- 根据权利要求6中所述的发声器件，其特征在于，所述第二固定部包括固定于所述副磁钢组件的第一段、由所述第一段靠近所述第一骨架连接臂的一端向远离所述磁路系统方向弯折延伸的第二段、由所述第二段的远离所述第一段的一端弯折延伸且与所述第一骨架连接臂间隔设置的第三段以及由所述第三段远离所述第二段的一端向靠近所述第三固定部方向延伸且与所述第三固定部连接的第四段，所述第二段、所述第三段以及所述第四段共同围成所述避让台阶；所述第三段及所述第四段远离所述第二段的一端均固定于所述盆架。
- 根据权利要求7中所述的发声器件，其特征在于，所述发声器件还包括盖设于所述第二固定部的上盖，所述上盖包括与所述第二固定部间隔设置的盖板以及由所述盖板周缘向所述磁路系统方向弯折延伸并支撑固定于所述副磁钢组件的围壁，所述围壁对应所述避让台阶处设有缺口，所述避让台阶收容于所述缺口处且与所述围壁连接。
- 根据权利要求1中所述的发声器件，其特征在于，所述振动系统还包括固定于所述盆架远离所述振膜一侧的弹性导电件，所述弹性导电件包括弹性导电件主体、以及由所述弹性导电件主体的相对两侧分别延伸形成的第一连接部和第二连接部；所述第一连接部固定于所述盆架，所述第二连接部固定于所述骨架本体远离所述振动部的一端，所述第二连接部设有与所述音圈电连接的焊盘。
- 根据权利要求9中所述的发声器件，其特征在于，所述振动系统还包括贴设于所述弹性导电件远离所述振膜一侧的辅助振膜。
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| CN201967118U (zh) * | 2011-01-06 | 2011-09-07 | 瑞声光电科技(常州)有限公司 | 一种新型的微型扬声器 |
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