WO2022143209A1 - 发声单体和耳机 - Google Patents

发声单体和耳机 Download PDF

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Publication number
WO2022143209A1
WO2022143209A1 PCT/CN2021/138972 CN2021138972W WO2022143209A1 WO 2022143209 A1 WO2022143209 A1 WO 2022143209A1 CN 2021138972 W CN2021138972 W CN 2021138972W WO 2022143209 A1 WO2022143209 A1 WO 2022143209A1
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WIPO (PCT)
Prior art keywords
sound
generating unit
front cavity
spacer
earphone
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PCT/CN2021/138972
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English (en)
French (fr)
Inventor
王苗苗
郭晓冬
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歌尔股份有限公司
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Application filed by 歌尔股份有限公司 filed Critical 歌尔股份有限公司
Publication of WO2022143209A1 publication Critical patent/WO2022143209A1/zh

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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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1091—Details not provided for in groups H04R1/1008 - H04R1/1083
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means

Definitions

  • the invention relates to the technical field of electro-acoustic conversion, in particular to a sound-generating monomer and an earphone.
  • the speaker includes a magnetic circuit component, a vibration component and a casing.
  • the voice coil is connected to an external power supply through the voice coil lead.
  • the energized voice coil is subjected to force in the magnetic field of the magnetic circuit system to generate vibration.
  • the surrounding air resonates to produce sound.
  • the bass unit and the tweeter unit are arranged at the same time, so that the low frequency part and the high frequency part of the audio can be fully presented, and the frequency bandwidth of the speaker can be expanded.
  • the tweeter and the woofer will be affected by the vibration of each other's diaphragms, so that the acoustic performance of each sounding unit cannot be fully demonstrated, especially for the high-frequency part. .
  • the main purpose of the present invention is to provide a sound-generating unit and an earphone, which aims to solve the technical problem of mutual influence between the two sound-generating units in the existing speaker structure with two sound-generating units.
  • the sound-generating unit comprises a housing with a sound-emitting hole, two sound-generating units arranged in the housing, and the diaphragms of the two sound-generating units are arranged at relative intervals, and the
  • the housing includes a spacer, the spacer is arranged between the diaphragms of the two sound-emitting units, and a first front connecting the sound-outlet hole is formed between the spacer and one of the sound-emitting units.
  • a second front cavity is formed between the intermediate part and the other sounding unit, and a ventilation hole is formed on the intermediate part to communicate with the first front cavity and the second front cavity.
  • one of the two sounding units is a bass sounding unit, and the other is a bass sounding unit or a high-pitched sounding unit.
  • the sound-generating unit forming the first front cavity with the spacer is a high-pitched sound-generating unit
  • the sound-generating unit forming the second front cavity with the spacer is a bass sound-generating unit.
  • the housing includes an upper case and a lower case, the upper case accommodates a sound-emitting unit forming the first front cavity, and the lower case accommodates a sound-emitting unit forming the second front cavity;
  • the spacer is located between the upper case and the lower case, and is connected with the upper case and the lower case, respectively.
  • the spacer includes a partition plate and a hollow outer frame that are respectively arranged opposite to the sound-emitting unit, and the outer peripheral side of the outer frame is respectively connected to the upper shell and the lower shell, and the outer frame is The outer peripheral side of the separator is connected to the outer frame.
  • the vibration direction of the diaphragm of the sound generating unit is perpendicular to the sound exit direction of the sound exit hole.
  • vent hole is opened at one end of the partition member close to the sound outlet hole.
  • the sound outlet is opened in the upper shell; the outer frame is close to one end of the sound-emitting unit that forms the first front cavity, and is recessed to form a connection between the sound outlet and the first front cavity. sound gap.
  • the present invention also provides an earphone, the earphone includes the above-mentioned sound-producing unit and a housing having a receiving space, the sound-producing unit divides the receiving space into a front ear cavity and a back ear cavity, and the sound output The hole communicates with the front cavity of the earphone.
  • the housing is further provided with a pressure equalizing hole communicating with the first front cavity and/or the second front cavity, and the pressure equalizing hole communicates with the earphone rear cavity.
  • the sound generating unit provided by the present invention has better acoustic performance and can meet various needs;
  • the first front cavity and the second front cavity are formed with the two sounding units respectively, so as to reduce the influence of the air flow generated by the diaphragms of the two sounding units on the vibration of each other's diaphragms;
  • the spacer forms the sounding unit of the first front cavity.
  • the above design can improve the high-frequency performance and ductility of the entire sounding unit.
  • FIG. 1 is a schematic diagram of a partially disassembled structure of an embodiment of a sounding monomer of the present invention
  • FIG. 2 is a schematic cross-sectional structure diagram of an embodiment of a sounding monomer of the present invention
  • FIG. 3 is a schematic cross-sectional structure diagram of a proportion of a sounding monomer of the present invention.
  • Fig. 4 is the cross-sectional structure schematic diagram of another comparative example of the sounding monomer of the present invention.
  • Fig. 5 is the frequency response curve diagram of the sounding monomer shown in Fig. 2, Fig. 3 and Fig. 4;
  • FIG. 6 is a schematic cross-sectional structure diagram of an embodiment of an earphone according to the present invention.
  • the present invention provides a sound generating unit 100 .
  • the technical solution of the present invention proposes a sound-generating unit 100.
  • the sound-generating unit 100 includes a housing 1 with a sound outlet 12, two sound-generating units 5 disposed in the housing 1, and two sound-generating units 5.
  • the diaphragms 51 of the unit 5 are relatively spaced apart, and the housing includes a spacer 3 arranged between the diaphragms 51 of the two sounding units 5 .
  • the first front cavity 52, the second front cavity 54 is formed between the intermediate member 3 and the other sounding unit 5, and the intermediate member 3 is provided with a ventilation hole 32 connecting the first front cavity 52 and the second front cavity 54.
  • the air flow directly passes through the sound outlet 12 to the outside, so that the outside receives the sound of the sound-emitting unit 5 forming the first front cavity 52; the sound that forms the second front cavity 54
  • the unit 5 vibrates and emits sound
  • the airflow first enters the first front cavity 52 through the vent hole 32 , and then reaches the outside through the sound outlet 12 , so that the outside receives the sound of the sound-emitting unit 5 forming the second front cavity 54 .
  • the ventilation holes 32 on the spacer 3 and the second front cavity 54 together produce the Helmholtz resonance effect, which can Expand the frequency bandwidth of the sounding unit 5 itself, and at the same time move its frequency division point to high frequencies;
  • the first front cavity 54 when the sounding unit 5 is working, the first front cavity 54
  • the part of 52 away from the sound outlet 102 produces a Helmholtz resonance effect, which can expand the frequency bandwidth of the sounding unit 5 and move its crossover point to high frequencies. Therefore, the above design can improve the entire sounding unit 100 High frequency performance and ductility.
  • FIG. 3 and FIG. 4 Please refer to FIG. 3 and FIG. 4 .
  • the difference between the comparative example shown in FIG. 3 and the sounding device of the present invention is that in the comparative example shown in FIG.
  • the unit 5 has an independent front cavity;
  • the difference between the comparative example shown in FIG. 4 and the sound-emitting device of the present invention is that in the comparative example shown in FIG. 4 , the spacer 3 is not provided, and two sound-emitting units 5 share one anterior cavity.
  • the curve L1 is the frequency response curve of the sounding device of the comparative example shown in FIG. 3
  • the curve L2 is the frequency response curve of the sounding device of the comparative example shown in FIG.
  • the curve L3 is an implementation of the sounding device of the present invention.
  • Example frequency response curve It can be seen from the curve L1, the curve L2 and the curve L3 that in the high frequency part, the sound-emitting device provided by the present invention has a larger frequency bandwidth.
  • the sound-generating unit 100 provided by the present invention has two sound-generating units 5. Compared with a speaker having only one sound-generating unit 5, the sound-generating unit 100 provided by the present invention has better acoustic performance; Each sounding unit 5 forms a first front cavity 52 and a second front cavity 54, thereby reducing the influence of the airflow generated by the diaphragms 51 of the two sounding units 5 on the vibration of each other's diaphragms 51; 32, so that by generating the Helmholtz resonance effect, the frequency bandwidth of the sounding unit 100 is further expanded on the basis of the frequency bandwidth of each sounding unit 5 working independently, and the high frequency performance and ductility of the sounding unit 100 are improved.
  • one of the two sounding units 5 is a bass sounding unit, and the other is a bass sounding unit or a high-pitched sounding unit.
  • Those skilled in the art can choose what kind of sounding unit 5 the two sounding units 5 are respectively according to needs.
  • a combination of a bass sounding unit and a treble sounding unit can be used; when it is necessary to enhance the bass effect and make the low frequency more rich and full, a combination of dual bass sounding units can be used.
  • the sounding unit 5 forming the first front cavity 52 with the spacer 3 is a high-pitched sounding unit
  • the sounding unit 5 forming the second front cavity 54 with the spacer 3 is a bass sounding unit.
  • the bass sounding unit has a larger amplitude, and when vibrating, it exerts a greater thrust on the air in the second front cavity 54 , thereby facilitating the flow of air from the sound outlet 12 .
  • the sound-emitting unit 5 that forms the first front cavity 52 is a high-pitched sound-emitting unit
  • the sound-emitting unit 5 that forms the second front cavity 54 is a bass sound-emitting unit.
  • the casing 1 includes an upper casing 11 and a lower casing 13, the upper casing 11 accommodates the sounding unit 5 forming the first front cavity 52, and the lower casing 13 accommodates the sounding unit 5 forming the first front cavity 52.
  • the sound-emitting unit of the two front chambers 54; the spacer 3 is located between the upper shell 11 and the lower shell 13, and is connected to the upper shell 11 and the lower shell 13 respectively.
  • the spacer 3 includes a partition 33 and a hollow outer frame 31 which are respectively arranged opposite to the sound-emitting unit 5 at a distance. Connected to the outer frame 31 .
  • the high-pitched sounding unit is accommodated in the upper shell 11, and the bass sounding unit is housed in the lower shell 13.
  • the upper shell 11 and the lower shell 13 are respectively provided with pressure relief holes that communicate with the high-pitched sounding unit and the bass sounding unit. 14, in order to facilitate the vibration of the diaphragm 51.
  • the outer frame 31 may be supported on the basin frame of the tweeter unit or the basin frame of the woofer unit.
  • the size of the first front cavity 52 and the second front cavity 54 can be adjusted by adjusting the connection position of the partition plate 33 and the outer frame 31 to adjust the division of the space between the two sounding units 5 .
  • the vibration direction of the diaphragm 51 of the sound-emitting unit 5 is perpendicular to the sound-emitting direction of the sound-emitting hole 12 .
  • the vent hole 32 is opened at one end of the partition plate 33 close to the sound outlet hole 12 . In this way, the airflow of the second front cavity 54 can be quickly spread out through the sound outlet hole 12 .
  • the sound hole 12 is opened in the upper shell 11 ; the outer frame 31 is close to one end of the sound generating unit 5 forming the first front cavity 52 , and is recessed to form a sound hole 36 connecting the sound hole 12 and the first front cavity 52 .
  • the tweeter sounding unit is placed on the outer frame 31 , and the channel formed by the tweeter sounding unit and the sound outputting gap 36 communicates with the sound output hole 12 and the first front cavity 52 .
  • the present invention further provides an earphone 10 .
  • the earphone 10 includes the sound-generating unit 100 as described above.
  • the specific structure of the sounding unit 100 refers to the above-mentioned embodiments. Since the earphone 10 adopts all the technical solutions of the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here. One more elaboration.
  • the earphone 10 may specifically be a hanging earphone or an in-ear earphone.
  • the earphone 10 includes a casing 101 with a receiving space.
  • the sound-emitting unit 100 divides the receiving space into a front earphone cavity 103 and a rear earphone cavity 104.
  • the sound outlet 12 is communicated with the front earphone cavity 103.
  • the casing 1 is also provided with With the pressure equalizing hole 16 of the first front cavity 52 and/or the second front cavity 54 , the pressure equalizing hole 16 communicates with the earphone rear cavity 104 .
  • the earphone 10 includes a casing 101 adapted to the user's concha cavity, and the end of the earphone 10 that is used for contacting the top of the user's concha cavity is the top of the casing 101, and the end that is used to contact the bottom of the user's concha cavity is the end of the casing 101.
  • the housing 101 is provided with a sound outlet hole 102 for facing the user's external auditory canal.
  • the sound outlet 102 is communicated with the front cavity 103 of the earphone.
  • the pressure equalizing hole 16 can directly adjust the relationship between the first front cavity 52, the second front cavity 54 and the earphone rear cavity 104.
  • the pressure relief hole 14 can directly adjust the air pressure balance between the interior of each sounding unit 5 and the back cavity 104 of the earphone.
  • the two sounding units 5 can be stacked in a direction perpendicular to the bottom of the casing 101 to the top of the casing 101 .
  • the two sounding units 5 can also be stacked along the direction from the bottom of the casing 101 to the top of the casing 101 .
  • Those skilled in the art can determine the manner to set the positional relationship of the two sound generating units 5 in the housing 101 according to the space reserved for the sound generating unit 100 in the housing 101 and the size of the sound generating unit 100 .

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Headphones And Earphones (AREA)

Abstract

本发明公开一种发声单体和耳机，所述发声单体包括具有出音孔的壳体、设于所述壳体内的两个发声单元，两个所述发声单元的振膜相对间隔设置，所述壳体包括中隔件，所述中隔件设于两个所述发声单元的振膜之间，所述中隔件和一个所述发声单元之间形成连通所述出音孔的第一前腔，所述中隔件和另一个所述发声单元之间形成第二前腔，所述中隔件上开设有连通所述第一前腔和第二前腔的通气孔。本发明公开的发声单体尺寸小、音质佳，两个发声单元相互影响小。

Description

发声单体和耳机 技术领域
本发明涉及电声转换技术领域，特别涉及一种发声单体和耳机。
背景技术
扬声器包括磁路组件和振动组件以及外壳，音圈通过音圈引线与外部电源连接，通电的音圈在磁路系统的磁场中受力产生振动，音圈的振动带动了振膜的振动从而与周围的空气产生共振而发出声音。现有扬声器结构中，同时设置低音单元和高音单元，从而可以充分呈现音频的低频部分和高频部分，拓展扬声器的频宽。但是将低音单元和高音单元组合成一个发声单体时，高音单元和低音单元之间，会受到彼此振膜振动的影响，从而不能充分展现各个发声单元的声学性能，特别是对高频部分展现。
因此，需要提供一种新型的发声单体，解决上述技术问题。
发明内容
本发明的主要目的是提供一种发声单体和和耳机，旨在解决现有两个发声单元的扬声器结构中，两个发声单元之间相互影响的技术问题。
为实现上述目的，本发明提供的所述发声单体包括具有出音孔的壳体、设于所述壳体内的两个发声单元，两个所述发声单元的振膜相对间隔设置，所述壳体包括中隔件，所述中隔件设于两个所述发声单元的振膜之间，所述中隔件和一个所述发声单元之间形成连通所述出音孔的第一前腔，所述中隔件和另一个所述发声单元之间形成第二前腔，所述中隔件上开设有连通所述第一前腔和第二前腔的通气孔。
可选地，两个所述发声单元中一个为低音发声单元，另一个为低音发声单元或高音发声单元。
可选地，与所述中隔件形成所述第一前腔的发声单元为高音发声单元，与所述中隔件形成所述第二前腔的发声单元为低音发声单元。
可选地，所述壳体包括上壳和下壳，所述上壳收容形成所述第一前腔的 发声单元，所述下壳收容形成所述第二前腔的发声单元；
所述中隔件位于所述上壳和所述下壳之间，并且分别与所述上壳和所述下壳连接。
可选地，所述中隔件包括分别与所述发声单元相对间隔设置的隔板和中空的外框，所述外框的外周侧分别与所述上壳和所述下壳连接，所述隔板的外周侧与所述外框连接。
可选地，所述发声单元的振膜振动方向与所述出音孔的出音方向垂直。
可选地，所述通气孔开设于所述中隔件靠近所述出音孔的一端。
可选地，所述出音孔开设于所述上壳；所述外框靠近形成所述第一前腔的发声单元的一端，凹陷形成连通所述出音孔和所述第一前腔的出音缺口。
本发明还提供了一种耳机，所述耳机包括如上述的发声单体和具有收容空间的外壳，所述发声单体将所述收容空间划分为耳机前腔和耳机后腔，所述出音孔与所述耳机前腔连通。
可选地，所述壳体上还开设有与所述第一前腔和/或所述第二前腔连通的均压孔，所述均压孔与所述耳机后腔连通。
在本发明中，通过在发声单体中设置两个发声单元，相较于仅具有一个发声单元的扬声器，本发明提供的发声单体声学性能更佳，可以满足多种需求；通过设置中隔件分别与两个发声单元形成第一前腔和第二前腔，从而减小两个发声单元的振膜产生的气流影响彼此的振膜振动；通过在中隔件上开设通气孔，对于与中隔件形成第一前腔的发声单元，在该发声单元工作时，中隔件上的通气孔和第二前腔共同产生亥姆霍兹共鸣效应，能够拓展该发声单元自身的频宽，同时使其分频点向高频移动；对于与中隔件形成第二前腔的发声单元，在该发声单元工作时，第一前腔远离出音孔的部分产生亥姆霍兹共鸣效应，进而能够拓展该发声单元自身的频宽，同时使其分频点向高频移动，因此上述设计，能够提升整个发声单体高频的性能和延展性。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术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示出的结构获得其他的附图。
图1为本发明发声单体一实施例的部分拆解结构示意图；
图2为本发明发声单体一实施例的剖面结构示意图；
图3为本发明发声单体一对比例的剖面结构示意图；
图4为本发明发声单体另一对比例的剖面结构示意图；
图5为图2、图3和图4所示发声单体的频响曲线图；
图6为本发明耳机一实施例的剖面结构示意图。
实施例附图标号说明：
标号 名称 标号 名称
10 耳机 101 外壳
102 出声孔 103 耳机前腔
104 耳机后腔 100 发声单体
1 壳体 11 上壳
13 下壳 12 出音孔
14 泄压孔 16 均压孔
3 中隔件 31 外框
33 隔板 32 通气孔
36 出音缺口 5 发声单元
51 振膜 52 第一前腔
54 第二前腔    
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
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作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
需要说明，本发明实施例中所有方向性指示(诸如上、下、左、右、前、后……)仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，在本发明中涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本发明要求的保护范围之内。
本发明提出一种发声单体100。
参照图1和图2，本发明技术方案提出一种发声单体100，发声单体100包括具有出音孔12的壳体1、设于壳体1内的两个发声单元5，两个发声单元5的振膜51相对间隔设置，壳体包括设于两个发声单元5的振膜51之间的中隔件3，中隔件3和一个发声单元5之间形成连通出音孔12的第一前腔52，中隔件3和另一个发声单元5之间形成第二前腔54，中隔件3上开设有连通第一前腔52和第二前腔54的通气孔32。
形成第一前腔52的发声单元5振动发声时，气流直接通过出音孔12到达外部，以使得外部收到形成第一前腔52的发声单元5的发声；形成第二前腔54的发声单元5振动发声时，气流先通过通气孔32进入第一前腔52，再通过出音孔12到达外部，以使得外部收到形成第二前腔54的发声单元5的发声。对于与中隔件3形成第一前腔52的发声单元5，在该发声单元5工作时，中隔件3上的通气孔32和第二前腔54共同产生亥姆霍兹共鸣效应，能够拓展该发声单元5自身的频宽，同时使其分频点向高频移动；对于与中隔件3形成第二前腔54的发声单元5，在该发声单元5工作时，第一前腔52远离出音孔102的部分产生亥姆霍兹共鸣效应，进而能够拓展该发声单元5自身的频宽，同时使其分频点向高频移动，因此上述设计，能够提升整个发声单体100高频的性能和延展性。
请参阅图3和图4，其中，图3所示的对比例与本发明的发声器件不同之 处在于，图3所示的对比例中，中隔件3不具有通气孔32，两个发声单元5具有相互独立的前腔；图4所示的对比例与本发明的发声器件不同之处在于，图4所示的对比例中，未设置中隔件3，两个发声单元5共用一个前腔。请参阅图5，其中，曲线L1为图3所示对比例的发声器件的频响曲线，曲线L2为图4所示对比例的发声器件的频响曲线，曲线L3为本发明发声器件一实施例的频响曲线。从曲线L1、曲线L2、曲线L3可以看出，在高频部分，本发明提供的发声器件具有更大的频宽。
本发明提供的发声单体100中具有两个发声单元5，相较于仅具有一个发声单元5的扬声器，本发明提供的发声单体100声学性能更佳；通过设置中隔件3分别与两个发声单元5形成第一前腔52和第二前腔54，从而减小两个发声单元5的振膜51产生的气流影响彼此的振膜51振动；通过在中隔件3上开设通气孔32，从而通过产生亥姆霍兹共鸣效应，在各发声单元5独立工作的频宽基础上进一步拓展发声单体100频宽，提升发声单体100高频的性能和延展性。
进一步地，两个发声单元5中一个为低音发声单元，另一个为低音发声单元或高音发声单元。本领域技术人员可以根据需要选择两个发声单元5分别为何种发声单元5。当需要实现全频效果，增加用户听感体验，可以采用低音发声单元和高音发声单元组合；当需要增强低音效果，使低频更浑厚饱满，可以采用双低音发声单元组合。
再进一步地，与中隔件3形成第一前腔52的发声单元5为高音发声单元，与中隔件3形成第二前腔54的发声单元5为低音发声单元。相较于高音发声单元，低音发声单元的振幅更大，振动时对于第二前腔54内的空气推力更大，从而有利于气流从出音孔12流出。
为描述方便，以下以形成第一前腔52的发声单元5为高音发声单元，以形成第二前腔54的发声单元5为低音发声单元进行描述，本领域技术人员可以理解，以下相关特征的描述并不构成对两个发声单元5具体为高音发声单元或低音发声单元限定。请参阅图1和2，所述壳体1包括上壳11和下壳13，所述上壳11收容形成所述第一前腔52的发声单元5，所述下壳13收容形成所述第二前腔54的发声单元；所述中隔件3位于所述上壳11和所述下壳13之间，并且分别与所述上壳11和所述下壳13连接。通过设置上壳11和下壳 13，方便发声器件100的装配。
进一步地，中隔件3包括分别与发声单元5相对间隔设置的隔板33和中空的外框31，外框31的外周侧分别与上壳11和下壳13连接，隔板33的外周侧与外框31连接。在本实施例中，高音发声单元收容在上壳11内，低音发声单元收容在下壳13内，上壳11和下壳13上分别开设有与高音发声单元和与低音发声单元连通的泄压孔14，以有利于振膜51振动。外框31可以支撑在高音发声单元的盆架或低音发声单元的盆架上。可以通过调节隔板33与外框31的连接位置，调节两个发声单元5之间空间的划分，从而调节第一前腔52和第二前腔54的大小。
发声单元5的振膜51振动方向与出音孔12的出音方向垂直。并且通气孔32开设于隔板33靠近出音孔12的一端。以使得第二前腔54的气流能快速通过出音孔12传播出去。
出音孔12开设于上壳11；外框31靠近形成第一前腔52的发声单元5的一端，凹陷形成连通出音孔12和第一前腔52的出音缺口36。高音发声单元置于外框31上，高音发声单元和出音缺口36形成的通道连通出音孔12和第一前腔52。
请参阅图1和图6，本发明还提供了一种耳机10，耳机10包括如上述的发声单体100。
该发声单体100的具体结构参照上述实施例，由于本耳机10采用了上述所有实施例的全部技术方案，因此至少具有上述实施例的技术方案所带来的所有有益效果，在此不再一一赘述。耳机10具体可以是挂耳式耳机或入耳式耳机。
进一步地，耳机10包括具有收容空间的外壳101，发声单体100将收容空间划分为耳机前腔103和耳机后腔104，出音孔12与耳机前腔103连通，壳体1上还开设有与第一前腔52和/或第二前腔54的均压孔16，均压孔16与耳机后腔104连通。
耳机10包括与用户耳甲腔适配的外壳101，以耳机10中用于与用户耳甲腔顶部接触的一端为外壳101的顶部，用于与用户耳甲腔底部接触的一端为外壳101的底部，外壳101上开设有用于朝向用户外耳道的出声孔102。出声孔102与耳机前腔103的连通，通过设置均压孔16从而使耳机的声音听上去 更均衡，振膜51振动更协调，拥有更好的瞬态效果，避免佩戴过程中扬声器振膜51异响。通过直接在壳体1上开设均压孔16，从而避免额外占用空间，有利于发声单体100小型化。
在壳体1上设置均压孔16的同时，在壳体1上还设有泄压孔14，均压孔16可以直接调节第一前腔52、第二前腔54和耳机后腔104之间的气压平衡，泄压孔14可以直接调节各个发声单元5内部与耳机后腔104之间的气压平衡。
两个发声单元5可以沿垂直外壳101的底部到外壳101的顶部方向叠设。两个发声单元5还可以沿外壳101的底部到外壳101的顶部方向叠设。本领域技术人员可以根据外壳101中预留给发声单体100的空间，以及发声单体100的尺寸确定采用何种方式设置两个发声单元5在外壳101中的位置关系。
以上仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是在本发明的发明构思下，利用本发明说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本发明的专利保护范围内。

Claims (10)

  1. 一种发声单体，其特征在于，所述发声单体包括具有出音孔的壳体、设于所述壳体内的两个发声单元，两个所述发声单元的振膜相对间隔设置，所述壳体包括中隔件，所述中隔件设于两个所述发声单元的振膜之间，所述中隔件和一个所述发声单元之间形成连通所述出音孔的第一前腔，所述中隔件和另一个所述发声单元之间形成第二前腔，所述中隔件上开设有连通所述第一前腔和第二前腔的通气孔。
  2. 如权利要求1所述的发声单体，其特征在于，两个所述发声单元中一个为低音发声单元，另一个为低音发声单元或高音发声单元。
  3. 如权利要求2所述的发声单体，其特征在于，与所述中隔件形成所述第一前腔的发声单元为高音发声单元，与所述中隔件形成所述第二前腔的发声单元为低音发声单元。
  4. 如权利要求1所述的发声单体，其特征在于，所述壳体包括上壳和下壳，所述上壳收容形成所述第一前腔的发声单元，所述下壳收容形成所述第二前腔的发声单元；
    所述中隔件位于所述上壳和所述下壳之间，并且分别与所述上壳和所述下壳连接。
  5. 如权利要求4所述的发声单体，其特征在于，所述中隔件包括分别与所述发声单元相对间隔设置的隔板和中空的外框，所述外框的外周侧分别与所述上壳和所述下壳连接，所述隔板的外周侧与所述外框连接。
  6. 如权利要求5所述的发声单体，其特征在于，所述出音孔开设于所述上壳；
    所述外框靠近形成所述第一前腔的发声单元的一端，凹陷形成连通所述出音孔和所述第一前腔的出音缺口。
  7. 如权利要求1至6中任一项所述的发声单体，其特征在于，所述通气孔开设于所述中隔件靠近所述出音孔的一端。
  8. 如权利要求1至6中任一项所述的发声单体，其特征在于，所述发声单元的振膜振动方向与所述出音孔的出音方向垂直。
  9. 一种耳机，其特征在于，所述耳机包括如权利要求1至8中任一项所述的发声单体和具有收容空间的外壳，所述发声单体将所述收容空间划分为耳机前腔和耳机后腔，所述出音孔与所述耳机前腔连通。
  10. 如权利要求9所述的耳机，其特征在于，所述壳体上还开设有与所述第一前腔和/或所述第二前腔连通的均压孔，所述均压孔与所述耳机后腔连通。
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