WO2022041471A1 - Sound production device - Google Patents

Sound production device Download PDF

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Publication number
WO2022041471A1
WO2022041471A1 PCT/CN2020/125480 CN2020125480W WO2022041471A1 WO 2022041471 A1 WO2022041471 A1 WO 2022041471A1 CN 2020125480 W CN2020125480 W CN 2020125480W WO 2022041471 A1 WO2022041471 A1 WO 2022041471A1
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WO
WIPO (PCT)
Prior art keywords
sound
base
generating unit
rear shell
spacer
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Application number
PCT/CN2020/125480
Other languages
French (fr)
Chinese (zh)
Inventor
吴军
印兆宇
魏威
刘忠原
Original Assignee
瑞声声学科技(深圳)有限公司
瑞声光电科技(常州)有限公司
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Publication date
Priority to CN202010879422.6 priority Critical
Priority to CN202010879422.6A priority patent/CN112153503B/en
Application filed by 瑞声声学科技(深圳)有限公司, 瑞声光电科技(常州)有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Publication of WO2022041471A1 publication Critical patent/WO2022041471A1/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

Abstract

A sound production device, which comprises a housing having an accommodating space, and a sound production unit that is accommodated in the accommodating space. The sound production unit comprises a diaphragm for vibrating to produce sound. The housing is made of a metal material and comprises a base and a rear shell, wherein the base is provided with a sound production port that penetrates same. The base comprises: an annular base plate; a base extension wall that bends and extends from the outer periphery of the base plate to the rear shell; an auxiliary extension wall that bends and extends from the inner periphery of the base plate to the rear shell; and a flange that bends and extends from the auxiliary extension wall, wherein the flange is welded and fixed to a peripheral side of the sound production unit. The flange is annular and defines the sound production port; the diaphragm extends outwards through the sound production port and is exposed outside of the housing; the auxiliary extension wall, the flange and the sound production unit jointly define a glue dispensing groove; and the rear shell, the base and the sound production unit jointly define a rear sound cavity.

Description

发声器件sound device 技术领域technical field
本发明涉及电声转换领域,尤其涉及一种运用于便携式移动电子产品的发声器件。The invention relates to the field of electro-acoustic conversion, in particular to a sound-generating device used in portable mobile electronic products.
背景技术Background technique
发声器件又名扬声器,广泛运用于便携式移动电子产品中,比如手机,实现将音频信号转化为声音播放,发声器件响度大,振幅度。Sound-emitting devices, also known as speakers, are widely used in portable mobile electronic products, such as mobile phones, to convert audio signals into sound for playback. The sound-emitting devices have large loudness and amplitude.
相关技术的发声器件包括用于发声的发声单体、分别盖设于所述发声单体相对两侧的底座和后壳,所述底座和所述后壳共同围成收容空间,所述底座和所述后壳注塑成型并通过超声波焊接进行固定。The related art sound-generating device includes a sound-generating unit for sounding, a base and a back shell respectively covered on opposite sides of the sound-generating unit, the base and the back shell together form a receiving space, the base and The rear shell is injection-molded and fixed by ultrasonic welding.
技术问题technical problem
然而,相关技术的发声器件所述底座和所述后壳若需要采用超声波焊接固定,需要更多空间,限制了所述发声器件内部腔体的空间大小。However, if the base and the back shell of the sound-emitting device in the related art need to be fixed by ultrasonic welding, more space is required, which limits the space size of the internal cavity of the sound-emitting 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-mentioned technical problems.
技术解决方案technical solutions
本发明的目的在于提供一种声学效果更好的发声器件。The purpose of the present invention is to provide a sounding device with better acoustic effect.
为了达到上述目的,本发明提供了一种发声器件,其包括具有收容空间的壳体以及收容于所述收容空间的发声单体,所述发声单体包括用于振动发声的振膜,所述壳体由金属材料制成,其包括沿所述振膜的振动方向分别盖设于所述发声单体相对两侧的底座和后壳,所述底座设有贯穿其上的发声口;In order to achieve the above object, the present invention provides a sound-generating device, which includes a housing having a receiving space and a sound-generating unit accommodated in the receiving space, the sound-generating unit including a diaphragm for vibrating and sounding, the The shell is made of metal material, and includes a base and a rear shell that are respectively covered on opposite sides of the sound-generating unit along the vibration direction of the diaphragm, and the base is provided with a sound-emitting port passing through it;
所述底座包括呈环状的底座板、由所述底座板的外周缘向所述后壳方向弯折延伸的底座延伸壁、由所述底座板的内周缘向所述后壳方向弯折延伸并与所述底座延伸壁间隔设置的副延伸壁以及由所述副延伸壁远离所述底座板的一端向所述发声单体弯折延伸的翻边,所述翻边与所述发声单体的周侧焊接固定;所述翻边呈环状并围成所述发声口,所述振膜经所述发声口向外延伸并外露于所述壳体,所述副延伸壁、所述翻边以及所述发声单体共同围成点胶槽;The base includes a ring-shaped base plate, a base extension wall that is bent and extended from the outer periphery of the base plate to the rear shell, and is bent and extended from the inner periphery of the base plate to the rear shell. an auxiliary extension wall arranged at intervals from the base extension wall, and a flange that is bent and extended toward the sound-emitting unit from the end of the auxiliary extension wall away from the base plate, and the flange is connected to the sound-emitting unit. Welding and fixing on the peripheral side of the flange; the flange is annular and surrounds the sounding port, the diaphragm extends outward through the sounding port and is exposed to the shell, the auxiliary extension wall, the flip The edge and the sounding monomer together form a dispensing groove;
所述后壳、所述底座以及所述发声单体共同围成后声腔。The rear shell, the base and the sound-generating unit together form a rear sound cavity.
优选的,所述点胶槽内设置密封圈以使所述底座与所述发声单体密封。Preferably, a sealing ring is arranged in the glue dispensing groove to seal the base and the sounding unit.
优选的,所述后壳包括位于所述发声单体远离所述底座一侧且与所述发声单体间隔的后壳板、由所述后壳板的周缘向所述底座方向弯折延伸的后壳延伸壁,所述后壳延伸壁抵接于所述底座延伸壁并与所述底座延伸壁焊接固定。Preferably, the rear shell includes a rear shell plate located on the side of the sound-generating unit away from the base and spaced from the sound-generating unit, and a rear shell plate that is bent and extended from the periphery of the rear shell plate toward the base. The rear shell extension wall is abutted against the base extension wall and is welded and fixed with the base extension wall.
优选的,所述发声单体至少部分外露于所述壳体。Preferably, the sound-generating unit is at least partially exposed to the casing.
优选的,所述密封圈为向所述点胶槽内填充胶水形成。Preferably, the sealing ring is formed by filling glue into the glue dispensing groove.
优选的,所述发声器件还包括位于所述后声腔内的透气隔离件,所述透气隔离件固定于所述翻边并将所述发声单体从所述后声腔内分隔。Preferably, the sound-generating device further includes a ventilating spacer located in the rear acoustic cavity, the ventilating spacer being fixed to the flange and separating the sound-generating unit from the rear acoustic cavity.
优选的,所述透气隔离件包括与所述后壳板间隔相对设置的隔离件本体、由所述隔离件本体的周缘向所述底座弯折延伸的隔离件延伸部以及由所述隔离件延伸部远离所述隔离件本体的一端弯折延伸的隔离件固定部;所述隔离件延伸部与所述后壳延伸壁间隔设置,所述隔离件固定部固定于所述翻边,所述透气隔离件、所述后壳以及所述底座共同围成灌粉空间。Preferably, the air-permeable spacer includes a spacer body disposed opposite to the rear shell plate, a spacer extension portion bent and extended from the periphery of the spacer body to the base, and an extension portion of the spacer extending from the spacer The isolator fixing part is bent and extended from one end of the isolator body away from the isolator body; the isolator extension part is spaced apart from the rear shell extension wall, the isolator fixing part is fixed on the flange, and the ventilation The spacer, the rear shell and the base together form a powder filling space.
优选的,所述发声器件还包括贴设于所述底座板远离所述发声单体一侧的胶圈。Preferably, the sound-generating device further includes a rubber ring attached to the side of the base plate away from the sound-generating unit.
优选的,所述胶圈为双面胶制成。Preferably, the rubber ring is made of double-sided tape.
优选的,所述发声器件还包括贯穿所述壳体向所述发声单体延伸并与所述发声单体电连接的导电件。Preferably, the sound-generating device further includes a conductive member extending through the casing to the sound-generating unit and electrically connected to the sound-generating unit.
优选的,所述导电件包括导电件主体、由所述导电体本体的两端向所述发声单体方向延伸并与所述发声单体固定电连接的连接臂以及由所述导电件本体向远离所述发声单体方向延伸并贯穿所述壳体的延伸臂。Preferably, the conductive member comprises a conductive member body, a connecting arm extending from both ends of the conductive member body towards the sound-generating unit and being fixed and electrically connected to the sound-generating unit, and a connection arm extending from the conductive member body to the sound-generating unit. An extension arm extending away from the sounding unit and passing through the housing.
有益效果beneficial effect
与相关技术相比,本发明的发声器件中,其包括具有收容空间的壳体以及收容于所述收容空间的发声单体,通过将壳体设计成底座和后壳分别盖设于所述发声单体的相对两侧,同时,将翻边与所述发声单体的周侧焊接固定,且所述后壳、所述底座以及所述发声单体共同围成后声腔,所述壳体由金属材料制成;在不增加外形尺寸的情况下,所述后声腔空间增大,使得发声器件的声学效果更优;所述副延伸壁、所述翻边以及所述发声单体共同围成点胶槽,点胶槽用于收容密封圈,使得壳体与发声单体的密封性更好的同时不占据空间,空间利用率高;此外,翻边与所述发声单体的周侧焊接固定,可靠性更好;仅利用底座与后壳实现与发声单体的固定,以及形成所述后声腔,零件达到最少化,节约成本。Compared with the related art, in the sound-emitting device of the present invention, it includes a casing with a receiving space and a sound-producing unit contained in the receiving space. On the opposite sides of the unit, at the same time, the flanges are welded and fixed to the peripheral side of the sound-emitting unit, and the rear shell, the base and the sound-emitting unit together form a rear sound cavity, and the shell is composed of It is made of metal material; without increasing the external size, the space of the rear acoustic cavity is enlarged, so that the acoustic effect of the sound-emitting device is better; the auxiliary extension wall, the flange and the sound-emitting monomer are jointly surrounded by The dispensing groove is used to accommodate the sealing ring, so that the sealing between the shell and the sounding unit is better, and it does not occupy space, and the space utilization rate is high; in addition, the flange is welded with the peripheral side of the sounding unit Fixing, the reliability is better; only the base and the rear shell are used to realize the fixing to the sounding monomer, and to form the rear sound cavity, the parts are minimized, and the cost is saved.
附图说明Description of drawings
为了更清楚地说明本发明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发明的一些实施例,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 illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, under the premise of no creative work, other drawings can also be obtained from these drawings, wherein:
图1为本发明发声器件的立体结构示意图;Fig. 1 is the three-dimensional structure schematic diagram of the sound-emitting device of the present invention;
图2为本发明发声器件的部分立体结构分解示意图;Fig. 2 is the partial three-dimensional structure exploded schematic diagram of the sounding device of the present invention;
图3为沿图1中A-A线的剖示图。FIG. 3 is a cross-sectional view taken along line A-A in FIG. 1 .
本发明的实施方式Embodiments of the present invention
下面将结合本发明实施例中的附图,对本发明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发明的一部分实施例,而不是全部的实施例。基于本发明中的实施例,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,都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
请同时参阅图1-3,本发明提供了一种发声器件100,其包括具有收容空间10的壳体1、收容于所述收容空间10的发声单体2、透气隔离件4、导电件5以及胶圈6。Please refer to FIGS. 1-3 at the same time, the present invention provides a sound-generating device 100 , which includes a housing 1 having an accommodation space 10 , a sound-generating unit 2 accommodated in the accommodation space 10 , a ventilating spacer 4 , and a conductive member 5 and apron 6.
所述发声单体2包括金属盆架22以及固定于所述金属盆架22且用于振动发声的振膜21。The sound-generating unit 2 includes a metal basin frame 22 and a diaphragm 21 fixed to the metal basin frame 22 and used for vibrating and sounding.
具体的,壳体1包括底座11和后壳12,底座11和后壳12沿所述振膜21的振动方向分别盖设于所述发声单体2的相对两侧,本实施例底座11和后壳12沿所述振膜21的振动方向是盖设于所述金属盆架22相对两侧,所述底座11设有贯穿其上的发声口1110;所述底座11和后壳12均由金属材料制成,使得整个壳体1变薄,进一步增加收容空间10的大小。Specifically, the casing 1 includes a base 11 and a rear casing 12 . The base 11 and the rear casing 12 are respectively covered on opposite sides of the sounding unit 2 along the vibration direction of the diaphragm 21 . The rear shell 12 is covered on opposite sides of the metal basin frame 22 along the vibration direction of the diaphragm 21 , and the base 11 is provided with a sound outlet 1110 passing through it; the base 11 and the rear shell 12 are made of It is made of metal material, so that the entire casing 1 becomes thinner, which further increases the size of the receiving space 10 .
所述底座11设有位于所述发声单体2远离所述后壳12一侧的呈环状的底座板111、由所述底座板111的外周缘向所述后壳12方向弯折延伸的底座延伸壁112、由所述底座板111的内周缘向所述后壳12方向弯折延伸并与所述底座延伸壁112间隔设置的副延伸壁113以及由所述副延伸壁113远离所述底座板111的一端向所述发声单体2弯折延伸的翻边114,所述翻边114与所述发声单体2的周侧焊接固定;所述翻边114呈环状并围成所述发声口1110,所述振膜21经所述发声口1110向外延伸并外露于所述壳体1,所述副延伸壁113、所述翻边114以及所述发声单体2共同围成点胶槽14a。点胶槽14a内设置密封圈141a以使所述底座11与所述发声单体2密封,使得壳体1与发声单体2的密封性更好的同时不占据空间,空间利用率高;同时此密封圈141a还可以用于与整机装配,节省材料。The base 11 is provided with a ring-shaped base plate 111 located on the side of the sound-generating unit 2 away from the rear shell 12 . The base extension wall 112 , the auxiliary extension wall 113 which is bent and extended from the inner periphery of the base plate 111 toward the rear shell 12 and is spaced from the base extension wall 112 , and the auxiliary extension wall 113 is away from the base extension wall 113 . One end of the base plate 111 is a flange 114 that is bent and extended toward the sounding unit 2, and the flange 114 is welded and fixed to the peripheral side of the sounding unit 2; the flange 114 is annular and surrounds The sounding port 1110, the diaphragm 21 extends outward through the sounding port 1110 and is exposed to the housing 1, the auxiliary extension wall 113, the flange 114 and the sounding unit 2 are jointly enclosed by Dispensing tank 14a. A sealing ring 141a is arranged in the dispensing groove 14a to seal the base 11 and the sounding unit 2, so that the sealing between the housing 1 and the sounding unit 2 is better, and it does not occupy space, and the space utilization rate is high; The sealing ring 141a can also be used for assembling with the whole machine to save material.
优选的,所述密封圈141a为向所述点胶槽14a内填充胶水形成。所述发声单体2至少部分外露于所述壳体1,即振膜21露设于壳体1,使得振膜21的出声效果更好。Preferably, the sealing ring 141a is formed by filling the glue dispensing groove 14a with glue. The sound-generating unit 2 is at least partially exposed to the casing 1 , that is, the diaphragm 21 is exposed to the casing 1 , so that the sound-emitting effect of the diaphragm 21 is better.
所述后壳12包括位于所述发声单体2远离所述底座11一侧且与所述发声单体2间隔的后壳板121、由所述后壳板121的周缘向所述底座11方向弯折延伸的后壳延伸壁122。具体的,所述后壳延伸壁122的延伸方向平行于振膜21的振动方向,所述后壳延伸壁122抵接于所述底座延伸壁112并与所述底座延伸壁112焊接固定,可靠性更好。The rear shell 12 includes a rear shell plate 121 located on the side of the sound-generating unit 2 away from the base 11 and spaced from the sound-generating unit 2 . The rear shell extension wall 122 is bent and extended. Specifically, the extension direction of the rear case extension wall 122 is parallel to the vibration direction of the diaphragm 21 , the rear case extension wall 122 abuts against the base extension wall 112 and is welded and fixed to the base extension wall 112 , which is reliable Sex is better.
本实施例中,所述后壳12、所述底座11以及所述发声单体2共同围成后声腔20。至此,本发明的上述发声器件100则形成了相对封闭的后声腔结构,其结构简单,改善了发声器件100的声学性能,特别是低频声学性能。本实施方式中,发声单体2远离振膜21的一侧还设有泄露部23,泄露部23与所述后声腔20连通。In this embodiment, the rear shell 12 , the base 11 and the sounding unit 2 together form a rear sound cavity 20 . So far, the sound-generating device 100 of the present invention forms a relatively closed rear acoustic cavity structure, which is simple in structure and improves the acoustic performance of the sound-generating device 100, especially the low-frequency acoustic performance. In this embodiment, a leakage portion 23 is further provided on the side of the sound generating unit 2 away from the diaphragm 21 , and the leakage portion 23 communicates with the rear acoustic cavity 20 .
透气隔离件4位于所述后声腔20内,其固定于所述翻边114并将所述发声单体1从所述后声腔20内分隔。The ventilating spacer 4 is located in the rear acoustic cavity 20 , which is fixed to the flange 114 and separates the sound-generating unit 1 from the rear acoustic cavity 20 .
具体的,所述透气隔离件4包括与所述后壳板121间隔相对设置的隔离件本体41、由所述隔离件本体41的周缘向所述底座11弯折延伸的隔离件延伸部42以及由所述隔离件延伸部42远离所述隔离件本体41的一端弯折延伸的隔离件固定部43;所述隔离件延伸部42与所述后壳延伸壁122间隔设置,所述隔离件固定部43固定于所述翻边114,所述透气隔离件4、所述后壳12以及底座11共同围成灌粉空间30,所述灌粉可以30用以封装吸音颗粒,提高发声器件100的声学效果。Specifically, the ventilating spacer 4 includes a spacer body 41 disposed opposite to the rear shell plate 121 , a spacer extension 42 bent and extending from the periphery of the spacer body 41 to the base 11 , and The spacer fixing portion 43 is bent and extended from one end of the spacer extension portion 42 away from the spacer body 41 ; the spacer extension portion 42 is spaced apart from the rear case extension wall 122 , and the spacer is fixed The part 43 is fixed on the flange 114 , and the air-permeable spacer 4 , the rear shell 12 and the base 11 together form a powder filling space 30 , and the filling powder 30 can be used to encapsulate the sound-absorbing particles and improve the sound quality of the sound-emitting device 100 . acoustic effects.
胶圈6贴设于所述底座板111远离所述发声单体2一侧,所述发声器件100通过胶圈6与整机实现装配及密封,优选的,所述胶圈6为双面胶制成。The rubber ring 6 is attached to the side of the base plate 111 away from the sounding unit 2, and the sounding device 100 is assembled and sealed with the whole machine through the rubber ring 6. Preferably, the rubber ring 6 is a double-sided adhesive tape. production.
所述壳体1包括贯穿其上的间隙13a,所述发声器件100还包括经所述间隙13a向所述发声单体2延伸并与所述发声单体2电连接的导电件5。The housing 1 includes a gap 13a extending therethrough, and the sound-generating device 100 further includes a conductive member 5 extending toward the sound-generating unit 2 through the gap 13a and electrically connected to the sound-generating unit 2 .
具体的,所述导电件5包括导电件主体52、由所述导电体本体52的两端向所述发声单体2方向延伸并与所述发声单体2固定电连接的连接臂53以及由所述导电件本体52向远离所述发声单体2方向延伸并经间隙13a的延伸臂51。通过对导电件5的结构设计,使得整个导电件5占据发声器件100的空间较小,同时实现了与发声单体2的电连接,空间利用率更高。Specifically, the conductive member 5 includes a conductive member body 52 , a connecting arm 53 extending from both ends of the conductive body 52 toward the sound-generating unit 2 and being fixed and electrically connected to the sound-generating unit 2 , and a connecting arm 53 . The conductor body 52 extends away from the sounding unit 2 and passes through the extension arm 51 of the gap 13a. Through the structural design of the conductive member 5 , the entire conductive member 5 occupies less space in the sound-generating device 100 , and at the same time, the electrical connection with the sound-generating unit 2 is realized, and the space utilization rate is higher.
与相关技术相比,本发明的发声器件中,其包括具有收容空间的壳体以及收容于所述收容空间的发声单体,通过将壳体设计成底座和后壳分别盖设于所述发声单体的相对两侧,同时,将翻边与所述发声单体的周侧焊接固定,且所述后壳、所述底座以及所述发声单体共同围成后声腔,所述壳体由金属材料制成;在不增加外形尺寸的情况下,所述后声腔空间增大,使得发声器件的声学效果更优;所述副延伸壁、所述翻边以及所述发声单体共同围成点胶槽,点胶槽用于收容密封圈,使得壳体与发声单体的密封性更好的同时不占据空间,空间利用率高;此外,翻边与所述发声单体的周侧焊接固定,可靠性更好;仅利用底座与后壳实现与发声单体的固定,以及形成所述后声腔,零件达到最少化,节约成本。Compared with the related art, in the sound-emitting device of the present invention, it includes a casing with a receiving space and a sound-producing unit contained in the receiving space. On the opposite sides of the unit, at the same time, the flanges are welded and fixed to the peripheral side of the sound-emitting unit, and the rear shell, the base and the sound-emitting unit together form a rear sound cavity, and the shell is composed of It is made of metal material; without increasing the external size, the space of the rear acoustic cavity is increased, so that the acoustic effect of the sound-emitting device is better; the auxiliary extension wall, the flange and the sound-emitting monomer are jointly enclosed by The dispensing groove is used to accommodate the sealing ring, so that the sealing between the shell and the sounding unit is better, and it does not occupy space, and the space utilization rate is high; in addition, the flange is welded with the peripheral side of the sounding unit Fixed, better reliability; only the base and the rear shell are used to achieve the fixation with the sounding monomer, and to form the rear sound cavity, the parts are minimized, and the cost is saved.
以上所述的仅是本发明的实施方式,在此应当指出,对于本领域的普通技术人员来说,在不脱离本发明创造构思的前提下,还可以做出改进,但这些均属于本发明的保护范围。The above are only the embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, improvements can be made without departing from the inventive concept of the present invention, but these belong to the present invention. scope of protection.

Claims (11)

  1. 一种发声器件,其包括具有收容空间的壳体以及收容于所述收容空间的发声单体,所述发声单体包括用于振动发声的振膜,其特征在于,所述壳体由金属材料制成,其包括沿所述振膜的振动方向分别盖设于所述发声单体相对两侧的底座和后壳,所述底座设有贯穿其上的发声口;A sound-generating device includes a housing with a housing space and a sound-generating unit accommodated in the housing space, the sound-generating unit comprising a diaphragm for vibrating and producing sound, and characterized in that the housing is made of a metal material It includes a base and a rear shell that are respectively covered on opposite sides of the sound-generating unit along the vibration direction of the diaphragm, and the base is provided with a sound-emitting port passing through it;
    所述底座包括呈环状的底座板、由所述底座板的外周缘向所述后壳方向弯折延伸的底座延伸壁、由所述底座板的内周缘向所述后壳方向弯折延伸并与所述底座延伸壁间隔设置的副延伸壁以及由所述副延伸壁远离所述底座板的一端向所述发声单体弯折延伸的翻边,所述翻边与所述发声单体的周侧焊接固定;所述翻边呈环状并围成所述发声口,所述振膜经所述发声口向外延伸并外露于所述壳体,所述副延伸壁、所述翻边以及所述发声单体共同围成点胶槽;The base includes a ring-shaped base plate, a base extension wall that is bent and extended from the outer periphery of the base plate to the rear shell, and is bent and extended from the inner periphery of the base plate to the rear shell. an auxiliary extension wall arranged at intervals from the base extension wall, and a flange that is bent and extended toward the sound-emitting unit from the end of the auxiliary extension wall away from the base plate, and the flange is connected to the sound-emitting unit. Welding and fixing on the peripheral side of the flange; the flange is annular and surrounds the sounding port, the diaphragm extends outward through the sounding port and is exposed to the shell, the auxiliary extension wall, the flip The edge and the sounding monomer together form a dispensing groove;
    所述后壳、所述底座以及所述发声单体共同围成后声腔。The rear shell, the base and the sound-generating unit together form a rear sound cavity.
  2. 根据权利要求1所述的发声器件,其特征在于,所述点胶槽内设置密封圈以使所述底座与所述发声单体密封。The sound-generating device according to claim 1, wherein a sealing ring is arranged in the glue dispensing groove to seal the base and the sound-generating unit.
  3. 根据权利要求1所述的发声器件,其特征在于,所述后壳包括位于所述发声单体远离所述底座一侧且与所述发声单体间隔的后壳板、由所述后壳板的周缘向所述底座方向弯折延伸的后壳延伸壁,所述后壳延伸壁抵接于所述底座延伸壁并与所述底座延伸壁焊接固定。The sound-generating device according to claim 1, wherein the rear shell comprises a rear shell plate which is located on the side of the sound-generating unit away from the base and is spaced from the sound-generating unit, and is formed by the rear shell plate. The rear shell extension wall is bent and extended toward the base direction from the peripheral edge, and the rear shell extension wall abuts the base extension wall and is welded and fixed with the base extension wall.
  4. 根据权利要求1所述的发声器件,其特征在于,所述发声单体至少部分外露于所述壳体。The sound-generating device according to claim 1, wherein the sound-generating unit is at least partially exposed from the casing.
  5. 根据权利要求1所述的发声器件,其特征在于,所述密封圈为向所述点胶槽内填充胶水形成。The sound-emitting device according to claim 1, wherein the sealing ring is formed by filling glue into the glue dispensing groove.
  6. 根据权利要求1所述的发声器件,其特征在于,所述发声器件还包括位于所述后声腔内的透气隔离件,所述透气隔离件固定于所述翻边并将所述发声单体从所述后声腔内分隔。The sound-generating device according to claim 1, characterized in that, the sound-generating device further comprises a ventilating spacer located in the rear acoustic cavity, the ventilating spacer being fixed to the flange and separating the sound-generating unit from the sound-generating unit. The rear acoustic cavity is separated.
  7. 根据权利要求6所述的发声器件,其特征在于,所述透气隔离件包括与所述后壳板间隔相对设置的隔离件本体、由所述隔离件本体的周缘向所述底座弯折延伸的隔离件延伸部以及由所述隔离件延伸部远离所述隔离件本体的一端弯折延伸的隔离件固定部;所述隔离件延伸部与所述后壳延伸壁间隔设置,所述隔离件固定部固定于所述翻边,所述透气隔离件、所述后壳以及所述底座共同围成灌粉空间。The sound-generating device according to claim 6, wherein the air-permeable spacer comprises a spacer body disposed opposite to the rear shell plate, a spacer body bent and extended from the periphery of the spacer body to the base a spacer extension part and a spacer fixing part bent and extended from one end of the spacer extension part away from the spacer body; the spacer extension part is spaced apart from the rear shell extension wall, and the spacer is fixed The air-permeable spacer, the rear shell and the base together form a powder filling space.
  8. 根据权利要求1所述的发声器件,其特征在于,所述发声器件还包括贴设于所述底座板远离所述发声单体一侧的胶圈。The sound-generating device according to claim 1, wherein the sound-generating device further comprises a rubber ring attached to a side of the base plate away from the sound-generating unit.
  9. 根据权利要求8所述的发声器件,其特征在于,所述胶圈为双面胶制成。The sound-emitting device according to claim 8, wherein the rubber ring is made of double-sided tape.
  10. 根据权利要求1所述的发声器件,其特征在于,所述发声器件还包括贯穿所述壳体向所述发声单体延伸并与所述发声单体电连接的导电件。The sound-generating device according to claim 1, wherein the sound-generating device further comprises a conductive member extending through the casing to the sound-generating unit and electrically connected with the sound-generating unit.
  11. 根据权利要求10所述的发声器件,其特征在于,所述导电件包括导电件主体、由所述导电体本体的两端向所述发声单体方向延伸并与所述发声单体固定电连接的连接臂以及由所述导电件本体向远离所述发声单体方向延伸并贯穿所述壳体的延伸臂。The sound-generating device according to claim 10, wherein the conductive member comprises a conductive member body, which extends from both ends of the conductive body towards the sound-generating unit and is fixed and electrically connected to the sound-generating unit. The connecting arm and the extending arm extending away from the sounding unit from the conductive element body and penetrating the casing.
PCT/CN2020/125480 2020-08-27 2020-10-30 Sound production device WO2022041471A1 (en)

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