WO2021000104A1 - Speaker box - Google Patents

Speaker box Download PDF

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Publication number
WO2021000104A1
WO2021000104A1 PCT/CN2019/094001 CN2019094001W WO2021000104A1 WO 2021000104 A1 WO2021000104 A1 WO 2021000104A1 CN 2019094001 W CN2019094001 W CN 2019094001W WO 2021000104 A1 WO2021000104 A1 WO 2021000104A1
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WO
WIPO (PCT)
Prior art keywords
speaker box
cavity
resonant cavity
sound
shell
Prior art date
Application number
PCT/CN2019/094001
Other languages
French (fr)
Chinese (zh)
Inventor
吴军
李健
任莉
Original Assignee
瑞声声学科技(深圳)有限公司
瑞声科技(新加坡)有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 瑞声声学科技(深圳)有限公司, 瑞声科技(新加坡)有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Priority to PCT/CN2019/094001 priority Critical patent/WO2021000104A1/en
Publication of WO2021000104A1 publication Critical patent/WO2021000104A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/02Casings; Cabinets ; Supports therefor; Mountings therein
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02Details
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06Loudspeakers

Abstract

The present application provides a speaker box. The speaker box comprises an upper housing, a lower housing matched with the upper housing to form an accommodating space, and a sound-producing unit accommodated in the accommodating space; the sound-producing unit separates the accommodating space into a front cavity and a rear cavity; the upper housing comprises a top wall, a supporting wall and a surrounding wall extending from the top wall to the lower housing, and a cover plate covering the surrounding wall; the surrounding wall is connected to the outer side of the supporting wall; the supporting wall, the surrounding wall, the top wall, and the cover plate together enclose a resonant cavity; the resonant cavity is communicated with the front cavity; the speaker box also comprises a partition plate, and the partition plate divides the resonant cavity into at least two stacked sub-resonant cavities in communication with each other. Compared with the related art, the speaker box provided in the present application can effectively reduce the high-frequency resonance peak and sensitivity and improve the acoustic performance of the speaker box.

Description

扬声器箱Speaker box 技术领域Technical field
本申请涉及电声转换领域,尤其涉及一种扬声器箱。This application relates to the field of electro-acoustic conversion, in particular to a speaker box.
背景技术Background technique
近年来随着移动通信技术的快速发展,消费者越来越多地使用带有语音功能的移动通讯设备,例如:便携式电话、掌上游戏机及手提电脑等。扬声器箱作为语音的播放装置,其设计好坏直接影响移动通讯设备产品的语音性能。为了满足市场对于薄型化及高音质的需求,对扬声器箱的设计提出了更高的要求。In recent years, with the rapid development of mobile communication technology, consumers have increasingly used mobile communication devices with voice functions, such as portable phones, handheld game consoles, and laptop computers. The speaker box is used as a voice playback device, and its design directly affects the voice performance of mobile communication equipment products. In order to meet the market's demand for thinness and high sound quality, higher requirements are put forward for the design of the speaker box.
相关技术中,扬声器箱包括上壳、下壳及发声单体,发声单体包括振膜,振膜与上壳间隔形成前声腔,导声通道成型与上壳的侧壁,前声腔和导声通道构成前腔,这样的结构会在高频频响产生一个共振峰;随着手机端立体声应用的普及,扬声器不再追求过高的高频频响,而且高频频响(特别是4000Hz至6000Hz)过高会导致声音刺耳、唇齿音尖锐等音质不佳的问题。In the related art, the speaker box includes an upper shell, a lower shell, and a sound-producing unit. The sound-producing unit includes a diaphragm. The diaphragm is separated from the upper case to form a front sound cavity. The sound guide channel is formed on the side wall of the upper case, the front sound cavity and the sound guide. The channel forms the front cavity, and this structure will produce a resonance peak in the high frequency response; with the popularization of stereo applications on mobile phones, speakers no longer pursue high high frequency response, and high frequency response (especially 4000Hz to 6000Hz) High can cause poor sound quality such as harsh sound and sharp labial and tooth sound.
因此,有必要提供一种新的扬声器箱以解决上述缺陷。Therefore, it is necessary to provide a new speaker box to solve the above-mentioned drawbacks.
技术问题technical problem
本申请主要解决的技术问题是如何有效降低扬声器箱的高频谐振峰值和灵敏度的问题。The main technical problem solved by this application is how to effectively reduce the high-frequency resonance peak value and sensitivity of the speaker box.
技术解决方案Technical solutions
为了解决上述技术问题,本申请提供一种扬声器箱,包括上壳、与所述上壳配合形成收容空间的下壳及收容于所述收容空间内的发声单体,所述发声单体将所述收容空间分隔成前腔与后腔,所述发声单体包括用于振动发声的振膜,所述振膜与所述上壳间隔设置形成前声腔,所述上壳形成有连通所述前声腔与外界的导声通道,所述导声通道与所述前声腔共同构成所述扬声器箱的前腔,所述上壳包括与所述振膜正对的顶壁及自所述顶壁向所述下壳方向延伸形成的支撑壁、自所述顶壁向所述下壳方向延伸形成并连接于所述支撑壁外侧的围壁及盖设于所述围壁的盖板,所述支撑壁、所述围壁、所述顶壁及所述盖板共同围成谐振腔,所述谐振腔和所述前腔连通,所述扬声器箱还包括分隔板,所述分隔板将所述谐振腔分隔成至少两个相互连通且沿所述振膜的振动方向层叠设置的子谐振腔。In order to solve the above technical problems, the present application provides a speaker box, which includes an upper shell, a lower shell that cooperates with the upper shell to form an accommodation space, and a sounding monomer accommodated in the accommodation space. The accommodating space is divided into a front cavity and a rear cavity, the sound-producing monomer includes a diaphragm for vibrating and sounding, and the diaphragm and the upper shell are spaced apart to form a front acoustic cavity, and the upper shell is formed to communicate with the front A sound guide channel between the sound cavity and the outside, the sound guide channel and the front sound cavity together form the front cavity of the speaker box, and the upper shell includes a top wall directly opposite to the diaphragm and a direction from the top wall The supporting wall extending in the direction of the lower shell, the surrounding wall extending from the top wall in the direction of the lower shell and connected to the outside of the supporting wall, and a cover plate covering the surrounding wall, the support The wall, the surrounding wall, the top wall and the cover plate jointly enclose a resonant cavity, the resonant cavity and the front cavity are connected, the speaker box further includes a partition plate, the partition plate The resonant cavity is divided into at least two sub-resonant cavities connected to each other and stacked along the vibration direction of the diaphragm.
在本申请提供的扬声器箱的一种较佳实施例中,所述谐振腔和所述前声腔连通,所述支撑壁对应所述谐振腔开设有缺口,所述缺口连通所述谐振腔和所述前声腔。In a preferred embodiment of the speaker box provided by the present application, the resonant cavity is in communication with the front acoustic cavity, the supporting wall is provided with a gap corresponding to the resonant cavity, and the gap is connected to the resonant cavity and the resonant cavity. Said before the sound cavity.
在本申请提供的扬声器箱的一种较佳实施例中,所述谐振腔和所述导声通道设置于所述发声单体的相对两侧。In a preferred embodiment of the speaker box provided by the present application, the resonant cavity and the sound guide channel are arranged on opposite sides of the sound emitting monomer.
在本申请提供的扬声器箱的一种较佳实施例中,所述子谐振腔包括通过所述缺口与所述前声腔连通的第一子谐振腔及第二子谐振腔,所述分隔板设有贯穿其上的连通孔,所述第二子谐振腔通过所述连通孔连通所述第一子谐振腔。In a preferred embodiment of the speaker box provided by the present application, the sub-resonant cavity includes a first sub-resonant cavity and a second sub-resonant cavity that communicate with the front acoustic cavity through the gap, and the partition plate A communicating hole is provided therethrough, and the second sub-resonant cavity communicates with the first sub-resonant cavity through the communicating hole.
在本申请提供的扬声器箱的一种较佳实施例中,所述扬声器箱还包括贯穿所述顶壁并连通所述第一子谐振腔的收容孔,所述围壁和所述支撑壁共同围成两端开口的结构,所述盖板包括分别盖设于所述两端开口结构两端的第一盖板和第二盖板,所述第一盖板收容于所述收容孔内且所述第一盖板与所述顶壁平齐设置,所述第二盖板远离所述顶壁设置并收容于所述收容空间内,所述第二盖板与所述支撑壁和所述围壁齐平设置。In a preferred embodiment of the speaker box provided by the present application, the speaker box further includes a receiving hole that penetrates the top wall and communicates with the first sub-resonant cavity, and the surrounding wall and the supporting wall are shared The cover plate includes a first cover plate and a second cover plate respectively covering both ends of the two-end opening structure. The first cover plate is received in the receiving hole and The first cover plate is arranged flush with the top wall, the second cover plate is arranged away from the top wall and is accommodated in the containing space, and the second cover plate is connected to the supporting wall and the enclosure The wall is set flush.
在本申请提供的扬声器箱的一种较佳实施例中,所述第一盖板、所述围壁、所述支撑壁及所述分隔板共同围成所述第一子谐振腔,所述分隔板、所述围壁、所述支撑壁及所述第二盖板共同围成所述第二子谐振腔。In a preferred embodiment of the speaker box provided by the present application, the first cover plate, the surrounding wall, the support wall and the partition plate jointly enclose the first sub-resonant cavity, so The partition plate, the surrounding wall, the supporting wall and the second cover plate jointly enclose the second sub-resonant cavity.
在本申请提供的扬声器箱的一种较佳实施例中,所述扬声器箱还包括贴设于所述分隔板的透气隔离件,所述透气隔离件覆盖所述连通孔。In a preferred embodiment of the speaker box provided by the present application, the speaker box further includes an air-permeable spacer attached to the partition plate, and the air-permeable spacer covers the communicating hole.
在本申请提供的扬声器箱的一种较佳实施例中,所述扬声器箱还包括吸音材料,所述吸音材料填充于所述第二子谐振腔内。In a preferred embodiment of the speaker box provided by the present application, the speaker box further includes a sound-absorbing material, and the sound-absorbing material is filled in the second sub-resonant cavity.
在本申请提供的扬声器箱的一种较佳实施例中,所述顶壁、所述支撑壁、所述围壁及所述分隔板一体设置。In a preferred embodiment of the speaker box provided by the present application, the top wall, the supporting wall, the surrounding wall and the partition plate are integrally arranged.
在本申请提供的扬声器箱的一种较佳实施例中,所述上壳还包括自所述顶壁朝所述下壳方向延伸并与所述下壳固定的侧壁,所述侧壁对应所述导声通道的位置开设有导声孔,所述上壳还包括一端抵接所述发声单体另一端延伸至所述导声孔的隔板,所述导声通道形成在所述隔板与所述顶壁之间。In a preferred embodiment of the speaker box provided in the present application, the upper shell further includes a side wall extending from the top wall toward the lower shell and fixed to the lower shell, and the side wall corresponds to The sound guide channel is provided with a sound guide hole, and the upper shell further includes a partition plate whose one end abuts the other end of the sound-producing monomer and extends to the sound guide hole, and the sound guide channel is formed in the partition Between the board and the top wall.
有益效果Beneficial effect
与现有技术相比,本申请提供的扬声器箱中,本申请提供的扬声器箱中,首先,通过设置与前腔连通的所述第一子谐振腔和第二子谐振腔,相当于在原前腔的基础上了一个额外的腔体,通过改变缺口的大小可以得到不同频响曲线的效果,有效降低所述扬声器箱的高频共振峰的Q值(品质因素值)和灵敏度,改善高频听感;其次,围成所述谐振腔的所述支撑壁、所述第二盖板均收容于所述扬声器箱的收容空间内,且所述第一盖板表面与所述顶壁的外侧表面平齐设置,这样的结构不占用所述扬声器箱的高度空间,可以满足扬声器箱轻薄化的设计需求;最后,通过调整所述透气隔离件的目数和在所述第二子谐振腔内填充吸音材料亦可以得到不同频响曲线的效果,有效降低所述扬声器箱的高频共振峰的Q值(品质因素值)和灵敏度,改善高频听感。Compared with the prior art, in the speaker box provided by the present application, in the speaker box provided by the present application, firstly, by providing the first sub-resonant cavity and the second sub-resonant cavity in communication with the front cavity, it is equivalent to the original On the basis of the cavity, an additional cavity can be obtained by changing the size of the gap to obtain the effect of different frequency response curves, effectively reducing the Q value (quality factor value) and sensitivity of the high frequency resonance peak of the speaker box, and improving the high frequency Listening; secondly, the supporting wall and the second cover that enclose the resonant cavity are all accommodated in the accommodation space of the speaker box, and the surface of the first cover and the outer side of the top wall The surface is arranged flush, such a structure does not occupy the height space of the speaker box, and can meet the design requirements of thin and light speaker box; finally, by adjusting the mesh number of the air-permeable spacer and the second sub-resonant cavity Filling with sound-absorbing materials can also obtain the effects of different frequency response curves, effectively reducing the Q value (quality factor value) and sensitivity of the high-frequency formant of the speaker box, and improving the high-frequency hearing.
附图说明Description of the drawings
为了更清楚地说明本申请实施例中的技术方案,下面将对实施例描述中所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申请的一些实施例,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 describe the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. Those of ordinary skill in the art can obtain other drawings based on these drawings without creative work, among which:
图1为本申请提供的扬声器箱的立体结构示意图;Figure 1 is a schematic diagram of the three-dimensional structure of the speaker box provided by this application;
图2为图1所示的扬声器箱的分解结构示意图;Figure 2 is a schematic diagram of an exploded structure of the speaker box shown in Figure 1;
图3为图2中III处的放大结构示意图;Fig. 3 is a schematic diagram of an enlarged structure at III in Fig. 2;
图4为图2中所示上壳的另一面的组配结构示意图;4 is a schematic diagram of the assembly structure of the other side of the upper shell shown in FIG. 2;
图5为图1所示的扬声器箱沿V-V线的剖视图;Figure 5 is a cross-sectional view of the speaker box shown in Figure 1 along the line V-V;
图6为图1所示的扬声器箱沿VI-VI线的剖视图;Figure 6 is a cross-sectional view of the speaker box shown in Figure 1 along line VI-VI;
图7为无谐振腔情况下扬声器箱的频响曲线图;Figure 7 shows the frequency response curve of the speaker box without the resonant cavity;
图8为单谐振腔情况下扬声器箱的频响曲线图;Figure 8 is a frequency response curve diagram of the speaker box in the case of a single resonant cavity;
图9为双谐振腔情况下扬声器箱的频响曲线图。Figure 9 is the frequency response curve of the speaker box in the case of dual resonant cavities.
本发明的最佳实施方式The best mode of the invention
下面将对本申请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申请的一部分实施例,而不是全部的实施例。基于本申请中的实施例,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,都属于本申请保护的范围。The technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of this application.
请同时参阅图1至图4,图1为本申请提供的扬声器箱的立体结构示意图;图2为图1所示的扬声器箱的分解结构示意图;图3为图2中III处的放大结构示意图;图4为图2中所示上壳的另一面结构示意图。本申请提供一种扬声器箱100,所述扬声器箱100包括上壳1、下壳2、具有振膜31的发声单体3、盖板4、透气隔离件5、吸音材料6、谐振腔10、前声腔20、导声通道30、前腔40及后腔50。Please refer to FIGS. 1 to 4 at the same time. FIG. 1 is a schematic diagram of the three-dimensional structure of the speaker box provided by this application; FIG. 2 is a schematic diagram of the exploded structure of the speaker box shown in FIG. 1; FIG. 3 is an enlarged schematic diagram of the structure at III in FIG. Figure 4 is a schematic diagram of the other side of the upper shell shown in Figure 2. The present application provides a speaker box 100. The speaker box 100 includes an upper shell 1, a lower shell 2, a sound-producing monomer 3 with a diaphragm 31, a cover plate 4, a breathable isolator 5, a sound-absorbing material 6, a resonant cavity 10, The front acoustic cavity 20, the sound guide channel 30, the front cavity 40 and the rear cavity 50.
所述上壳1用于承载并保护所述发声单体3,所述下壳2盖设于所述上壳1并与所述上壳1配合形成收容空间,所述发声单体3收容于所述收容空间内,且所述发声单体3将所述收容空间分隔成所述前腔40与所述后腔50。所述振膜31用于振动发声,所述上壳1与所述振膜31间隔设置形成所述前声腔20,所述导声通道30成型于所述上壳1,并连通所述前声腔20和外界,所述前声腔20与所述导声通道30共同构成所述前腔40,用于将声音传导至外界。所述上壳1、所述下壳2及所述振膜31配合形成所述后腔50。The upper shell 1 is used to carry and protect the sound emitting monomer 3, the lower shell 2 is arranged on the upper shell 1 and cooperates with the upper shell 1 to form a receiving space, and the sound emitting monomer 3 is accommodated in Inside the receiving space, and the sound emitting monomer 3 separates the receiving space into the front cavity 40 and the rear cavity 50. The diaphragm 31 is used for vibrating and sounding, the upper shell 1 and the diaphragm 31 are spaced apart to form the front acoustic cavity 20, and the sound guide channel 30 is formed in the upper shell 1 and communicates with the front acoustic cavity 20 and the outside, the front acoustic cavity 20 and the sound guide channel 30 together form the front cavity 40 for conducting sound to the outside. The upper shell 1, the lower shell 2 and the diaphragm 31 cooperate to form the rear cavity 50.
所述上壳1包括与所述振膜31正对的顶壁11及自所述顶壁11向所述下壳2方向延伸形成的用于固持所述发声单体3的支撑壁12、自所述顶壁11内侧表面向所述下壳2方向延伸形成的围壁13、自所述围壁13中部向所述支撑壁12延伸形成的分隔板14、盖设于所述围壁13及自所述顶壁11朝所述下壳2方向延伸并与所述下壳2固定的侧壁15。更优的,所述顶壁11、所述支撑壁12、所述围壁13及所述分隔板14一体设置。The upper shell 1 includes a top wall 11 directly opposite to the diaphragm 31, a supporting wall 12 extending from the top wall 11 to the lower shell 2 and used for holding the sounding monomer 3, and A surrounding wall 13 formed on the inner surface of the top wall 11 extending in the direction of the lower shell 2, a partition plate 14 extending from the middle of the surrounding wall 13 to the supporting wall 12, and covering the surrounding wall 13 And a side wall 15 extending from the top wall 11 toward the lower shell 2 and fixed to the lower shell 2. More preferably, the top wall 11, the supporting wall 12, the surrounding wall 13 and the partition plate 14 are integrally arranged.
所述顶壁11设有贯穿其上的收容孔111。The top wall 11 is provided with a receiving hole 111 passing through it.
所述支撑壁12用于固接所述发声单体3且所述发声单体3和所支撑壁12通过胶水粘接固定,这样可以使所述发声单体3和所述支撑壁12形成牢固的连接结构。The supporting wall 12 is used to fix the sounding monomer 3 and the sounding monomer 3 and the supporting wall 12 are fixed by glue bonding, so that the sounding monomer 3 and the supporting wall 12 can be firmly formed The connection structure.
所述围壁13与所述支撑壁12相接围成一个贯通的且两端开口的结构,所述收容孔111与所述两端开口的结构相连通。The surrounding wall 13 and the supporting wall 12 are connected to form a through structure with open ends, and the receiving hole 111 is connected to the structure with open ends.
请再结合参阅图5和图6,图5为图1所示的扬声器箱沿V-V线的剖视图;图6为图1所示的扬声器箱沿VI-VI线的剖视图。所述盖板4包括分别盖设于所述两端开口结构两端的第一盖板41和第二盖板42,所述第一盖板41收容于所述收容孔111内且所述第一盖板41与所述顶壁11平齐设置,所述第二盖板42远离所述顶壁11设置并收容于所述收容空间内,所述第二盖板42与所述支撑壁12和所述围壁13齐平设置。更优的,这样的结构,使得所述第一盖板41也不会高出所述顶壁11的表面,所述支撑壁12、所述围壁13、所述第二盖板42均收容于所述扬声器箱100的收容空间内,不占用所述扬声器箱100的高度空间,可以满足扬声器箱轻薄化的设计需求。所述盖板4为塑胶盖板、PET盖板或者钢片。Please refer to FIGS. 5 and 6 in combination. FIG. 5 is a cross-sectional view of the speaker box shown in FIG. 1 along the line V-V; FIG. 6 is a cross-sectional view of the speaker box shown in FIG. 1 along the line VI-VI. The cover plate 4 includes a first cover plate 41 and a second cover plate 42 respectively covering both ends of the two-end opening structure. The first cover plate 41 is received in the receiving hole 111 and the first cover plate 41 is The cover plate 41 is arranged flush with the top wall 11, the second cover plate 42 is arranged away from the top wall 11 and is accommodated in the containing space, and the second cover plate 42 and the supporting wall 12 and The surrounding wall 13 is arranged flush. More preferably, with such a structure, the first cover 41 will not rise above the surface of the top wall 11, and the supporting wall 12, the surrounding wall 13, and the second cover 42 are all contained In the accommodating space of the speaker box 100, the height space of the speaker box 100 is not occupied, which can meet the design requirement of thin and light speaker box. The cover plate 4 is a plastic cover plate, a PET cover plate or a steel sheet.
所述支撑壁12、所述围壁13、所述顶壁11及所述盖板4共同围成谐振腔10,所述谐振腔10和所述前腔40连通。具体的,所述谐振腔10和所述导声通道30设置于所述发声单体3的相对两侧。所述谐振腔10和所述前声腔20连通,所述支撑壁12对应所述谐振腔10开设有缺口121,所述缺口121连通所述谐振腔10和所述前声腔20。此时,所述谐振腔10和所述前腔40的谐振结构已经可以达到有效降低所述扬声器箱的高频共振峰的Q值(品质因素值)和灵敏度,改善高频听感的作用。The supporting wall 12, the surrounding wall 13, the top wall 11 and the cover plate 4 jointly enclose a resonant cavity 10, and the resonant cavity 10 and the front cavity 40 are in communication. Specifically, the resonant cavity 10 and the sound guide channel 30 are arranged on opposite sides of the sound emitting monomer 3. The resonant cavity 10 and the front acoustic cavity 20 are in communication, and the supporting wall 12 has a gap 121 corresponding to the resonant cavity 10, and the gap 121 communicates the resonant cavity 10 and the front acoustic cavity 20. At this time, the resonant structure of the resonant cavity 10 and the front cavity 40 can effectively reduce the Q value (quality factor value) and sensitivity of the high-frequency resonance peak of the speaker box, and improve the high-frequency hearing.
请再结合参阅图7-9,图7为无谐振腔情况下扬声器箱的频响曲线图;图8为单谐振腔情况下扬声器箱的频响曲线图;图9为双谐振腔情况下扬声器箱的频响曲线图。更优的,所述分隔板14将所述谐振腔10分隔成至少两个相互间隔、相互连通且沿所述振膜31振动方向层叠设置的子谐振腔,在本实施例中,所述子谐振腔的数量为两个,所述分隔板14将所述谐振腔10分隔成第一子谐振腔101和第二子谐振腔102,且所述分隔板14设有贯穿其上的连通孔141,所述第一子谐振腔101通过所述缺口121与所述前声腔20连通,所述第二子谐振腔102通过所述连通孔141与所述第一子谐振腔101连通。Please refer to Figures 7-9 again. Figure 7 is the frequency response curve of the speaker box without a resonant cavity; Figure 8 is the frequency response curve of the speaker box in the case of a single cavity; Figure 9 is the frequency response curve of the speaker box in the case of double resonators. The frequency response curve of the box. More preferably, the partition plate 14 separates the resonant cavity 10 into at least two sub-resonant cavities spaced apart from each other, connected to each other, and stacked along the vibration direction of the diaphragm 31. In this embodiment, the The number of sub-resonant cavities is two. The separating plate 14 separates the resonant cavity 10 into a first sub-resonant cavity 101 and a second sub-resonant cavity 102, and the separating plate 14 is provided with a penetrating through it. A communication hole 141, the first sub-resonant cavity 101 communicates with the front acoustic cavity 20 through the gap 121, and the second sub-resonant cavity 102 communicates with the first sub-resonant cavity 101 through the communication hole 141.
基于亥姆霍兹共振原理,所述第一子谐振腔101和所述第二子谐振腔102能够在所述前腔40本身的谐振峰位置形成反谐振,从而改善所述扬声器箱100高频频响的平坦度,同时也能够有效降低噪声被所述前腔40谐振放大的作用,可有效改善所述扬声器箱100的声学性能。在1000Hz-10000Hz的频段,双谐振腔结构的频响曲线比单谐振腔和无谐振腔机构的频响曲线更加平滑、平缓,更加有效的降低了所述扬声器箱的高频共振峰的Q值(品质因素值)和灵敏度,极大改善了高频听感。Based on the Helmholtz resonance principle, the first sub-resonant cavity 101 and the second sub-resonant cavity 102 can form anti-resonance at the resonance peak position of the front cavity 40 itself, thereby improving the high frequency of the speaker box 100 The flatness of the sound can also effectively reduce the effect of noise amplified by the resonance of the front cavity 40, and can effectively improve the acoustic performance of the speaker box 100. In the frequency range of 1000Hz-10000Hz, the frequency response curve of the dual resonant cavity structure is smoother and gentler than the frequency response curve of the single resonant cavity and the non-resonant cavity mechanism, which more effectively reduces the Q value of the high frequency resonance peak of the speaker box (Quality factor value) and sensitivity, greatly improve the high-frequency hearing.
所述第一盖板41、所述围壁13、所述支撑壁12及所述分隔板14共同围成所述第一子谐振腔101,且所述收容孔111连通所述第一子谐振腔101和外界。The first cover 41, the surrounding wall 13, the support wall 12, and the partition plate 14 collectively enclose the first sub-resonant cavity 101, and the receiving hole 111 communicates with the first sub-cavity 101 Resonant cavity 101 and the outside world.
所述分隔板14、所述围壁13、所述支撑壁12及所述第二盖板42共同围成所述第二子谐振腔102。所述透气隔离件5贴设于所述分隔板14并覆盖所述连通孔141。所述吸音材料6填充于所述第二子谐振腔102内。The partition plate 14, the surrounding wall 13, the supporting wall 12 and the second cover plate 42 jointly enclose the second sub-resonant cavity 102. The air-permeable spacer 5 is attached to the partition plate 14 and covers the communication hole 141. The sound-absorbing material 6 is filled in the second sub-resonant cavity 102.
所述侧壁15对应所述导声通道30的位置开设有导声孔151,所述上壳1还包括一端抵接所述发声单体3另一端延伸至所述导声孔151的隔板16,所述导声通道30形成在所述隔板16与所述顶壁11之间。The side wall 15 is provided with a sound guide hole 151 at a position corresponding to the sound guide channel 30, and the upper shell 1 further includes a partition plate whose one end abuts the sound emitting monomer 3 and the other end extends to the sound guide hole 151 16. The sound guide channel 30 is formed between the partition 16 and the top wall 11.
相较于现有技术,本申请提供的扬声器箱中,本申请提供的扬声器箱中,首先,通过设置与前腔连通的所述第一子谐振腔和第二子谐振腔,相当于在原前腔的基础上了一个额外的腔体,通过改变缺口的大小可以得到不同频响曲线的效果,有效降低所述扬声器箱的高频共振峰的Q值(品质因素值)和灵敏度,改善高频听感;其次,围成所述谐振腔的所述支撑壁、所述第二盖板均收容于所述扬声器箱的收容空间内,且所述第一盖板表面与所述顶壁的外侧表面平齐设置,这样的结构不占用所述扬声器箱的高度空间,可以满足扬声器箱轻薄化的设计需求;最后,通过调整所述透气隔离件的目数和在所述第二子谐振腔内填充吸音材料亦可以得到不同频响曲线的效果,有效降低所述扬声器箱的高频共振峰的Q值(品质因素值)和灵敏度,改善高频听感。Compared with the prior art, in the speaker box provided by the present application, in the speaker box provided by the present application, firstly, by setting the first sub-resonant cavity and the second sub-resonant cavity in communication with the front cavity, it is equivalent to the original On the basis of the cavity, an additional cavity can be obtained by changing the size of the gap to obtain the effect of different frequency response curves, effectively reducing the Q value (quality factor value) and sensitivity of the high frequency resonance peak of the speaker box, and improving the high frequency Listening; secondly, the supporting wall and the second cover that enclose the resonant cavity are all accommodated in the accommodation space of the speaker box, and the surface of the first cover and the outer side of the top wall The surface is arranged flush, such a structure does not occupy the height space of the speaker box, and can meet the design requirements of thin and light speaker box; finally, by adjusting the mesh number of the air-permeable spacer and the second sub-resonant cavity Filling with sound-absorbing materials can also obtain the effects of different frequency response curves, effectively reducing the Q value (quality factor value) and sensitivity of the high-frequency formant of the speaker box, and improving the high-frequency hearing.
以上所述仅为本申请的实施例,并非因此限制本申请的专利范围,凡是利用本申请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,均同理包括在本申请的专利保护范围内。The above are only examples of this application, and do not limit the scope of this application. Any equivalent structure or equivalent process transformation made using the content of the description and drawings of this application, or directly or indirectly applied to other related technologies In the same way, all fields are included in the scope of patent protection of this application.
本发明的实施方式Embodiments of the invention
在此处键入本发明的实施方式描述段落。Type here a paragraph describing the embodiment of the present invention.
工业实用性Industrial applicability
在此处键入工业实用性描述段落。Type a paragraph describing industrial applicability here.
序列表自由内容Sequence Listing Free Content
在此处键入序列表自由内容描述段落。Type here the free content description paragraph of the sequence listing.

Claims (10)

  1. 一种扬声器箱,包括上壳、与所述上壳配合形成收容空间的下壳及收容于所述收容空间内的发声单体,所述发声单体将所述收容空间分隔成前腔与后腔,所述发声单体包括用于振动发声的振膜,所述振膜与所述上壳间隔设置形成前声腔,所述上壳形成有连通所述前声腔与外界的导声通道,所述导声通道与所述前声腔共同构成所述扬声器箱的前腔,其特征在于,所述上壳包括与所述振膜正对的顶壁、自所述顶壁向所述下壳方向延伸形成的支撑壁、自所述顶壁向所述下壳方向延伸形成并连接于所述支撑壁外侧的围壁及盖设于所述围壁的盖板,所述支撑壁、所述围壁、所述顶壁及所述盖板共同围成谐振腔,所述谐振腔和所述前腔连通,所述扬声器箱还包括分隔板,所述分隔板将所述谐振谐振腔分隔成至少两个相互间隔且沿所述振膜的振动方向层叠设置的子谐振腔,所述子谐振腔相互连通。A speaker box includes an upper shell, a lower shell that cooperates with the upper shell to form an accommodation space, and a sounding monomer accommodated in the accommodation space. The sounding monomer separates the accommodation space into a front cavity and a rear cavity. The sound-emitting unit includes a diaphragm for vibrating and sounding, and the diaphragm and the upper shell are spaced apart to form a front sound cavity, and the upper shell is formed with a sound guide channel connecting the front sound cavity and the outside. The sound guide channel and the front sound cavity together constitute the front cavity of the speaker box, wherein the upper shell includes a top wall directly opposite to the diaphragm, and a direction from the top wall to the lower shell An extended supporting wall, a surrounding wall extending from the top wall toward the lower shell and connected to the outside of the supporting wall, and a cover plate covering the surrounding wall, the supporting wall, the surrounding The wall, the top wall, and the cover plate collectively enclose a resonant cavity, the resonant cavity and the front cavity are connected, the speaker box further includes a partition plate, the partition plate separates the resonant cavity At least two sub-resonant cavities spaced apart and stacked along the vibration direction of the diaphragm are formed, and the sub-resonant cavities communicate with each other.
  2. 根据权利要求1所述的扬声器箱,其特征在于,所述支撑壁对应所述谐振腔开设有缺口,所述缺口连通所述谐振腔和所述前声腔。The speaker box according to claim 1, wherein the supporting wall is provided with a gap corresponding to the resonant cavity, and the gap connects the resonant cavity and the front acoustic cavity.
  3. 根据权利要求1所述的扬声器箱,其特征在于,所述谐振腔和所述导声通道设置于所述发声单体的相对两侧。The speaker box according to claim 1, wherein the resonant cavity and the sound guide channel are arranged on opposite sides of the sound emitting monomer.
  4. 根据权利要求2所述的扬声器箱,其特征在于,所述子谐振腔包括通过所述缺口与所述前声腔连通的第一子谐振腔及第二子谐振腔,所述分隔板设有贯穿其上的连通孔,所述第二子谐振腔通过所述连通孔连通所述第一子谐振腔。The speaker box according to claim 2, wherein the sub-resonant cavity includes a first sub-resonant cavity and a second sub-resonant cavity that communicate with the front acoustic cavity through the gap, and the partition plate is provided with Through the communication hole thereon, the second sub-resonant cavity communicates with the first sub-resonant cavity through the communication hole.
  5. 根据权利要求4所述的扬声器箱,其特征在于,所述扬声器箱还包括贯穿所述顶壁并连通所述第一子谐振腔的收容孔,所述围壁和所述支撑壁共同围成两端开口的结构,所述盖板包括分别盖设于所述两端开口结构两端的第一盖板和第二盖板,所述第一盖板收容于所述收容孔内且所述第一盖板与所述顶壁平齐设置,所述第二盖板远离所述顶壁设置并收容于所述收容空间内,所述第二盖板与所述支撑壁和所述围壁齐平设置。The speaker box of claim 4, wherein the speaker box further comprises a receiving hole that penetrates the top wall and communicates with the first sub-resonant cavity, and the surrounding wall and the supporting wall jointly enclose The structure with both ends open, the cover plate includes a first cover plate and a second cover plate respectively covering both ends of the two ends opening structure, the first cover plate is received in the receiving hole and the first cover plate A cover plate is arranged flush with the top wall, the second cover plate is arranged away from the top wall and is accommodated in the containing space, and the second cover plate is flush with the supporting wall and the surrounding wall Flat settings.
  6. 根据权利要求5所述的扬声器箱,其特征在于,所述第一盖板、所述围壁、所述支撑壁及所述分隔板共同围成所述第一子谐振腔,所述分隔板、所述围壁、所述支撑壁及所述第二盖板共同围成所述第二子谐振腔。The speaker box according to claim 5, wherein the first cover plate, the surrounding wall, the supporting wall and the partition plate jointly enclose the first sub-resonant cavity, and the sub-cavity The partition plate, the surrounding wall, the supporting wall and the second cover plate jointly enclose the second sub-resonant cavity.
  7. 根据权利要求4所述的扬声器箱,其特征在于,所述扬声器箱还包括贴设于所述分隔板的透气隔离件,所述透气隔离件覆盖所述连通孔。The speaker box according to claim 4, wherein the speaker box further comprises an air-permeable spacer attached to the partition plate, and the air-permeable spacer covers the communication hole.
  8. 根据权利要求1所述的扬声器箱,其特征在于,所述扬声器箱还包括吸音材料,所述吸音材料填充于所述第二子谐振腔内。The speaker box according to claim 1, wherein the speaker box further comprises a sound-absorbing material, and the sound-absorbing material is filled in the second sub-resonant cavity.
  9. 根据权利要求1所述的扬声器箱,其特征在于,所述顶壁、所述支撑壁、所述围壁及所述分隔板一体设置。The speaker box according to claim 1, wherein the top wall, the supporting wall, the surrounding wall and the partition plate are integrally arranged.
  10. 根据权利要求1所述的扬声器箱,其特征在于,所述上壳还包括自所述顶壁朝所述下壳方向延伸并与所述下壳固定的侧壁,所述侧壁对应所述导声通道的位置开设有导声孔,所述上壳还包括一端抵接所述发声单体另一端延伸至所述导声孔的隔板,所述导声通道形成在所述隔板与所述顶壁之间。The speaker box according to claim 1, wherein the upper shell further comprises a side wall extending from the top wall toward the lower shell and fixed to the lower shell, the side wall corresponding to the The sound guide channel is provided with a sound guide hole, and the upper shell further includes a partition plate whose one end abuts the other end of the sound emitting monomer and extends to the sound guide hole, and the sound guide channel is formed between the partition plate and the sound guide hole. Between the top wall.
     To
PCT/CN2019/094001 2019-06-29 2019-06-29 Speaker box WO2021000104A1 (en)

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Publication number Priority date Publication date Assignee Title
EP2595410A1 (en) * 2011-11-17 2013-05-22 Plastoform Industries Limited A wearable speaker system with satellite speakers and a passive radiator
CN108882126A (en) * 2018-08-02 2018-11-23 瑞声科技(新加坡)有限公司 Loudspeaker enclosure
CN109218939A (en) * 2018-08-16 2019-01-15 歌尔股份有限公司 Sounding device and electronic equipment
CN109218895A (en) * 2018-08-02 2019-01-15 瑞声科技(新加坡)有限公司 Loudspeaker enclosure
CN109874067A (en) * 2018-12-30 2019-06-11 瑞声科技(新加坡)有限公司 Loudspeaker enclosure

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Publication number Priority date Publication date Assignee Title
EP2595410A1 (en) * 2011-11-17 2013-05-22 Plastoform Industries Limited A wearable speaker system with satellite speakers and a passive radiator
CN108882126A (en) * 2018-08-02 2018-11-23 瑞声科技(新加坡)有限公司 Loudspeaker enclosure
CN109218895A (en) * 2018-08-02 2019-01-15 瑞声科技(新加坡)有限公司 Loudspeaker enclosure
CN109218939A (en) * 2018-08-16 2019-01-15 歌尔股份有限公司 Sounding device and electronic equipment
CN109874067A (en) * 2018-12-30 2019-06-11 瑞声科技(新加坡)有限公司 Loudspeaker enclosure

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