WO2018006553A1 - 多单体扬声器模组及其设计方法、电子设备 - Google Patents
多单体扬声器模组及其设计方法、电子设备 Download PDFInfo
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- WO2018006553A1 WO2018006553A1 PCT/CN2016/110428 CN2016110428W WO2018006553A1 WO 2018006553 A1 WO2018006553 A1 WO 2018006553A1 CN 2016110428 W CN2016110428 W CN 2016110428W WO 2018006553 A1 WO2018006553 A1 WO 2018006553A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
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- the present invention relates to the field of electroacoustic products, and more particularly, to a multi-single speaker module, a design method of the multi-single speaker module, and an electronic device provided with the multi-single speaker module device.
- the speaker module With the rapid development and replacement of electronic products, the speaker module has gradually developed in a light, thin and compact direction, and has also put forward higher requirements on the sensitivity and resonance frequency (F0) of the speaker module. Therefore, the traditional A speaker module with a single speaker unit can no longer meet the higher requirements for sound effects, and it is necessary to design a multi-single speaker module.
- the structure of the module housing is limited, and the size of the rear cavity that each unit can divide is different. It is likely that there will be a large difference in the resonant frequency of each monomer. This large difference will cause double-peak or even multi-peak phenomenon in the impedance performance of the module, which seriously affects the performance of the module and causes product performance defects.
- a multi-unit speaker module includes a module housing and at least two speaker units; the module housing is configured to have a single unit with all of the speakers Corresponding respective installation positions, and a rear cavity region corresponding to all the speaker units, the volume of each of the rear cavity regions has at least two different values; each of the speaker units is installed at a corresponding installation position Each of the speaker units and the corresponding rear cavity region form a corresponding single module, and the resonant frequency of each of the speaker units causes resonance of all the single modules The frequencies are equal.
- the multi-unit speaker module has four speaker units, which are a first unit, a second unit, a third unit, and a fourth unit, respectively, and the structure of the module housing And corresponding to: a rear cavity region of the first monomer, a mounting position corresponding to the first monomer, a mounting position corresponding to the second monomer, a rear cavity region corresponding to the second monomer, and a corresponding a rear cavity region of the third cell, a mounting position corresponding to the third cell, a mounting position corresponding to the fourth cell, and a rear cavity region corresponding to the fourth cell in the module case
- the lengthwise direction of the body is arranged in order.
- the module housing has a mirror-symmetrical structure about a middle section, and the middle section is located in a rear cavity region corresponding to the second cell and a rear cavity region corresponding to the third cell. between.
- the volume corresponding to the rear cavity region of the first monomer is greater than the volume corresponding to the rear cavity region of the second monomer.
- a volume difference between a back cavity region corresponding to the first cell and a back cavity region corresponding to the second cell is equal to 0.2 cc.
- the maximum volume difference in the volume of each of the back cavity regions is less than or equal to 0.5 cc.
- all speaker units have the same form factor.
- a method for designing a multi-unit speaker module comprising:
- a resonant frequency of the speaker unit Determining a resonant frequency of the speaker unit to be selected according to a volume of each of the rear cavity regions and a target resonant frequency of the multi-unit speaker module, so that each speaker unit and the corresponding front cavity and corresponding rear are The resonant frequency of the single module formed by the cavity region is equal to the target resonant frequency;
- Each selected single speaker unit is mounted on a corresponding mounting position to form the multi-cell Speaker module.
- the module housing has four mounting positions, and the module housing has the following structure: a rear cavity area corresponding to the first installation position, a first installation position, a second installation position, a rear cavity area corresponding to the second installation position, a rear cavity area corresponding to the third installation position, a third installation position, a fourth installation position, and a rear cavity area corresponding to the fourth installation position in the module
- the housings are sequentially arranged in the longitudinal direction.
- an electronic device provided with a multi-single speaker module according to the first aspect of the invention.
- An advantageous effect of the present invention is that the multi-unit speaker module of the present invention can effectively avoid the impedance double caused by the structural limitation of the module housing by matching the capacity of the speaker unit and the corresponding rear cavity area.
- the peak problem can further improve the performance of the module.
- FIG. 1 is a schematic diagram showing the internal structure of an embodiment of a multi-cell speaker module according to the present invention
- FIG. 2 is a bottom view of the module of FIG. 1;
- Figure 3 is a cross-sectional view taken along line A-A of Figure 2;
- FIG. 4 is a simplified schematic structural view of the module shown in FIG. 1;
- Figure 5 is a schematic exploded view of the module of Figure 1;
- FIG. 6 is an impedance-frequency curve when the same speaker unit is mounted on the module housing shown in FIG. 1;
- Figure 7 is an impedance-frequency curve of the module of Figure 1.
- the multi-single speaker module of the present invention comprises a module housing and at least two speaker units.
- the module housings for mounting three or more (including three) speaker units basically have corresponding ones.
- the volume of the rear cavity region is unequally limited by the structure of the module housing. Therefore, the multi-unit speaker module of the present invention particularly includes at least three speaker units.
- FIG. 1 through 5 illustrate a module structure in accordance with an embodiment of the present invention.
- the multi-unit speaker module has four speaker units, which are a first unit 2a, a second unit 2b, a third unit 2c and a fourth unit 2d, respectively.
- the module housing 1 has a mounting position 101a corresponding to the first unit 2a, a mounting position 101b corresponding to the second unit 2b, a mounting position 101c corresponding to the third unit, and a mounting position of the corresponding fourth unit.
- the volume of each of the rear cavity regions 104a, 104b, 104c, 104d may be unequal or may not be equal, for example, two equals.
- the speaker unit 2a is mounted on the corresponding mounting position 101a
- the speaker unit 2b is mounted on the corresponding mounting position 101b
- the speaker unit 2c is mounted on the corresponding mounting position 101c
- the speaker unit 2d is mounted in the corresponding mounting position 101d. on.
- Each of the speaker units 2a, 2b, 2c, 2d forms a corresponding single module with the corresponding rear cavity regions 104a, 104b, 104c, 104d
- the resonant frequency of each of the speaker units 2a, 2b, 2c, 2d makes all The resonant frequency of the single module is equal, which ensures that the multi-unit speaker module has a single resonant frequency.
- F s is the resonant frequency of the speaker unit forming the single module
- Vb is the back cavity volume of the single module
- ⁇ 0 is the air density, usually 1.21Kg/m 3
- Sd is a single module
- C is the speed of sound in the air, usually 344 m / s
- Mms is the equivalent mass of the vibration system
- Cms is the equivalent of the support system of the vibration system.
- the relationship between the resonant frequency F 0 of the single module, the back cavity volume Vb, and the resonant frequency F s of the speaker unit can be determined, and then each In the case of the volume of the rear cavity region and the target resonance frequency of the single module, the resonance frequency of each speaker unit can be obtained, and the corresponding speaker unit can be selected according to the obtained resonance frequency.
- the module housing 1 has the following structure: a rear cavity region 104a, a mounting position 101a, a mounting position 101b, a rear cavity region 104b, a rear cavity region 104c, and a mounting position.
- the 101c, the mounting position 101d, and the rear cavity region 104d are sequentially arranged in the longitudinal direction of the module housing 1, that is, the rear cavity region 104a and the rear cavity region 104d are located at both ends of the module housing 1, and the rear cavity region 104b And the rear cavity region 104c is located at an intermediate position of the module housing.
- the module housing 1 has a mirror symmetrical structure with respect to a mid-section, wherein the intermediate section is located between the rear cavity region 104b and the rear cavity region 104c.
- the volumes of the rear cavity region 101a and the rear cavity region 101d are equal and larger than the respective volumes of the rear cavity region 101b and the rear cavity region 101c, wherein the rear cavity region 101b
- the rear cavity region 101c which is, for example, 0.2 cc (cubic centimeter).
- the maximum volume difference in the volume of each of the rear cavity regions of the module housing 1 is less than or equal to 0.5 cc, it is easier to match the individual speaker units.
- all of the speaker units 2a, 2b, 2c, 2d may have the same outer dimensions such that the module housing 1 may have mounting locations of the same construction and dimensions.
- the multi-unit speaker module of the present invention can obtain a single resonance frequency close to 900 Hz, and the matching first monomer 2a and the fourth monomer 2d have a resonance frequency of 990 Hz, and the matched second cells 2b and The resonant frequency of the three monomers 2c is 870 Hz.
- FIG. 6 is a graph showing impedance versus frequency when the module housings of the embodiment shown in FIGS. 1 to 5 are used to match four identical speaker units, wherein the volume of the rear chamber region 104a and the rear chamber region 104d is 0.6 cc, the volume of the rear cavity region 104b and the rear cavity region 104c is 0.4 cc.
- the multi-single speaker module will have two resonant frequencies, that is, a significant impedance double peak problem occurs, which will seriously affect the performance of the product.
- the module housing 1 includes a front case 1a and a rear case 1b, and the front case 1a and the rear case 1b snaps together to form respective rear cavity regions 104a, 104b, 104c, 104d.
- the front case 1a and the rear case 1b can be locked and fixed by means of fasteners such as screws or ultrasonic welding.
- the present invention also provides an electronic device such as a mobile phone, a tablet computer, an MP4, etc., which is provided with a multi-single speaker module according to the present invention.
- the invention also provides a design method of a multi-unit speaker module, and the design method of the module corresponding to the embodiment shown in FIG. 1 to FIG. 5 includes:
- Step S101 obtaining a given module housing 1 for mounting four speaker units, wherein the module housing 1 has various mounting positions 101a, 101b, 101c, 101d for mounting the speaker unit, and Each of the mounting positions 101a, 101b, 101c, 101d corresponds to each of the rear cavity regions 104a, 104b, 104c, 104d.
- step S102 the volumes of the respective rear cavity regions 104a, 104b, 104c, 104d are determined.
- Step S103 determining the resonance frequency of the speaker units 2a, 2b, 2c, 2d to be selected according to the volume of each of the rear cavity regions 104a, 104b, 104c, 104d and the target resonance frequency of the multi-unit speaker module, so that The resonant frequency of the single module formed by each of the speaker units 2a, 2b, 2c, 2d and the corresponding rear cavity regions 104a, 104b, 104c, 104d is equal to the target resonant frequency, for example, the above 900 Hz. .
- step S104 the speaker units 2a, 2b, 2c, and 2d matching the corresponding mounting positions 101a, 101b, 101c, and 101d are selected according to each of the determined resonance frequencies.
- the resonance frequency of the speaker unit is mainly determined by the equivalent mass of the vibration system and the effectiveness of the support system.
- each selected speaker unit 2a, 2b, 2c, 2d is mounted on the corresponding mounting position 101a, 101b, 101c, 101d to form a multi-unit speaker module.
- the module housing 1 can have four mounting positions 101a, 101b, 101c, and 101d.
- the module housing 1 is further configured to correspond to the first mounting position 101a.
- the position 101c, the fourth mounting position 101d, and the rear cavity region 104d corresponding to the fourth mounting position 101d are sequentially arranged in the longitudinal direction of the module housing 1.
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Abstract
一种多单体扬声器模组及其设计方法、电子设备,模组包括模组壳体(1)和至少两个扬声器单体(2a,2b,2c,2d);模组壳体(1)被设置为具有与所有扬声器单体(2a,2b,2c,2d)一一对应的各个安装位置(101a,101b,101c,101d)、及与所有扬声器单体(2a,2b,2c,2d)一一对应的后腔区域(104a,104b,104c,104d),各个后腔区域(104a,104b,104c,104d)的容积中至少有两种不同的数值;每一扬声器单体(2a,2b,2c,2d)安装在对应的安装位置上;每一扬声器单体(2a,2b,2c,2d)与对应的后腔区域(104a,104b,104c,104d)形成对应的单体模组,每一扬声器单体(2a,2b,2c,2d)的共振频率使得所有单体模组的谐振频率相等。模组通过对扬声器单体(2a,2b,2c,2d)与对应的后腔区域(104a,104b,104c,104d)的容积的匹配设计,可以有效避免因受到模组壳体(1)的结构限制而导致的阻抗双峰问题,进而可以有效提高模组的性能。
Description
本发明涉及电声产品技术领域,更具体地,本发明涉及一种多单体扬声器模组、该种多单体扬声器模组的设计方法、及设置有该种多单体扬声器模组的电子设备。
随着电子产品日新月异、更新换代,扬声器模组逐渐向轻、薄、小巧的方向发展,而且还对扬声器模组的灵敏度、谐振频率(F0)等性能提出了更高的要求,因此,传统的具有一个扬声器单体的扬声器模组已不能满足对声音效果提出的更高要求,势必要设计多单体扬声器模组。对于该种扬声器模组,在将多个单体装入模组壳体的对应安装位置时,受模组壳体的结构限制,每个单体所能分得的后腔大小不一,这很可能会导致对应各单体的谐振频率存在较大差异,该种较大差异会引起模组的阻抗性能出现双峰、甚至多峰现象,严重影响模组的性能,造成产品性能缺陷。
发明内容
本发明实施例的一个目的是提供一种能够抑制阻抗双峰问题的新的技术方案。
根据本发明的第一方面,提供了一种多单体扬声器模组,其包括模组壳体和至少两个扬声器单体;所述模组壳体被设置为具有与所有扬声器单体一一对应的各个安装位置、及与所有扬声器单体一一对应的后腔区域,所述各个后腔区域的容积中至少有两种不同的数值;每一所述扬声器单体安装在对应的安装位置上;每一所述扬声器单体与对应的后腔区域形成对应的单体模组,每一所述扬声器单体的共振频率使得所有单体模组的谐振
频率相等。
可选的是,所述多单体扬声器模组具有四个扬声器单体,分别为第一单体、第二单体、第三单体和第四单体,所述模组壳体的结构为:对应所述第一单体的后腔区域、对应所述第一单体的安装位置、对应所述第二单体的安装位置、对应所述第二单体的后腔区域、对应所述第三单体的后腔区域、对应所述第三单体的安装位置、对应所述第四单体的安装位置、及对应所述第四单体的后腔区域在所述模组壳体的长度方向上顺次排列。
可选的是,所述模组壳体具有关于一中截面镜像对称的结构,所述中截面位于对应所述第二单体的后腔区域与对应所述第三单体的后腔区域之间。
可选的是,对应所述第一单体的后腔区域的容积大于对应所述第二单体的后腔区域的容积。
可选的是,对应所述第一单体的后腔区域与对应所述第二单体的后腔区域之间的容积差等于0.2cc。
可选的是,所述各个后腔区域的容积中的最大容积差小于或者等于0.5cc。
可选的是,所有扬声器单体具有相同的外形尺寸。
根据本发明的第二方面,提供了一种多单体扬声器模组的设计方法,其包括:
获取给定的用于安装至少两个扬声器单体的模组壳体,其中,所述模组壳体具有用于安装扬声器单体的各个安装位置、及与所有安装位置一一对应的各个后腔区域;
确定各个后腔区域的容积;
根据每一后腔区域的容积和所述多单体扬声器模组的目标谐振频率,确定需要选择的扬声器单体的共振频率,以使由每一扬声器单体与对应的前腔和对应的后腔区域组成的单体模组的谐振频率等于所述目标谐振频率;
根据确定的每一共振频率,选择与对应安装位置匹配的扬声器单体;
将选择的每一扬声器单体安装在对应的安装位置上,形成所述多单体
扬声器模组。
可选的是,所述模组壳体具有四个安装位置,所述模组壳体的结构为:对应第一个安装位置的后腔区域、第一个安装位置、第二个安装位置、对应第二个安装位置的后腔区域、对应第三个安装位置的后腔区域、第三个安装位置、第四个安装位置、及对应第四个安装位置的后腔区域在所述模组壳体的长度方向上顺次排列。
根据本发明的第三方面,提供了一种电子设备,其设置有根据本发明第一方面所述的多单体扬声器模组。
本发明的一个有益效果在于,本发明多单体扬声器模组通过对扬声器单体与对应的后腔区域的容积的匹配设计,可以有效避免因受到模组壳体的结构限制而导致的阻抗双峰问题,进而可以有效提高该种模组的性能。
通过以下参照附图对本发明的示例性实施例的详细描述,本发明的其它特征及其优点将会变得清楚。
被结合在说明书中并构成说明书的一部分的附图示出了本发明的实施例,并且连同其说明一起用于解释本发明的原理。
图1为根据本发明多单体扬声器模组的一种实施方式的内部结构示意图;
图2为图1所示模组的仰视示意图;
图3为图2中A-A向剖视示意图;
图4为图1所示模组的简化结构示意图;
图5为图1所示模组的分解结构示意图;
图6为在图1所示模组壳体上安装相同扬声器单体时的阻抗-频率变化曲线;
图7为图1所示模组的阻抗-频率变化曲线。
附图标记说明:
1-模组壳体;
1a-前壳;
1b-后壳;
101a、101b、101c、101d-安装位置;
104a、104b、104c、104d-后腔区域;
2a、2b、2c、2d-扬声器单体。
现在将参照附图来详细描述本发明的各种示例性实施例。应注意到:除非另外具体说明,否则在这些实施例中阐述的部件和步骤的相对布置、数字表达式和数值不限制本发明的范围。
以下对至少一个示例性实施例的描述实际上仅仅是说明性的,决不作为对本发明及其应用或使用的任何限制。
对于相关领域普通技术人员已知的技术、方法和设备可能不作详细讨论,但在适当情况下,所述技术、方法和设备应当被视为说明书的一部分。
在这里示出和讨论的所有例子中,任何具体值应被解释为仅仅是示例性的,而不是作为限制。因此,示例性实施例的其它例子可以具有不同的值。
应注意到:相似的标号和字母在下面的附图中表示类似项,因此,一旦某一项在一个附图中被定义,则在随后的附图中不需要对其进行进一步讨论。
本发明的多单体扬声器模组包括模组壳体和至少两个扬声器单体,在此,由于用于安装三个以上(包括三个)扬声器单体的模组壳体基本存在各对应的后腔区域的容积受到模组壳体的结构限制不相等的问题,因此,本发明的多单体扬声器模组特别是包括至少三个扬声器单体。
图1至图5示出了根据本发明一实施例的模组结构。
根据图1至图5所示,该多单体扬声器模组具有四个扬声器单体,分别为第一单体2a、第二单体2b、第三单体2c和第四单体2d。
对应地,模组壳体1具有与对应第一单体2a的安装位置101a、对应第二单体2b的安装位置101b、对应第三单体的安装位置101c、对应第四单体的安装位置101d、对应第一单体2a的后腔区域104a、对应第二单体
2b的后腔区域104b、对应第三单体2c的后腔区域104c、及对应第四单体2d的后腔区域104d,其中,各个后腔区域104a、104b、104c、104d的容积中至少有两种不同的数值,即各个后腔区域104a、104b、104c、104d的容积可以各不相等,也可以是不完全相等,例如两两相等。
扬声器单体2a安装在对应的安装位置101a上,扬声器单体2b安装在对应的安装位置101b上,扬声器单体2c安装在对应的安装位置101c上,扬声器单体2d安装在对应的安装位置101d上。每一扬声器单体2a、2b、2c、2d与对应的后腔区域104a、104b、104c、104d形成对应的单体模组,每一扬声器单体2a、2b、2c、2d的共振频率使得所有单体模组的谐振频率相等,这样便能保证多单体扬声器模组具有单一的谐振频率。
单体模组的谐振频率F0的计算公式为:
其中,Fs为形成单体模组的扬声器单体的共振频率;Vb为单体模组的后腔容积;ρ0为空气密度,通常取1.21Kg/m3;Sd为形成单体模组的扬声器单体的有效辐射面积(m2);C为空气中声速,通常取344m/s;Mms为振动系统的等效质量;Cms为振动系统的支撑系统的等效力顺。
由此可见,根据公式(1)和公式(2)能够确定单体模组的谐振频率F0、后腔容积Vb和扬声器单体的共振频率Fs三者之间的关系,进而在确定各个后腔区域的容积和单体模组的目标谐振频率的情况下,能够获得各个扬声器单体的共振频率,进而可以根据获得的共振频率选配对应的扬声器单体。
进一步地,在图1至图5所示的实施例中,模组壳体1的结构为:后腔区域104a、安装位置101a、安装位置101b、后腔区域104b、后腔区域104c、安装位置101c、安装位置101d、及后腔区域104d在模组壳体1的长度方向上顺次排列,即后腔区域104a和后腔区域104d位于模组壳体1的两端位置,后腔区域104b和后腔区域104c位于模组壳体的中间位置。
再进一步地,在图1至图5所示的实施例中,模组壳体1具有关于一中截面镜像对称的结构,其中,该中截面位于后腔区域104b与后腔区域104c之间。
更进一步地,在图1至图5所示的实施例中,后腔区域101a和后腔区域101d的容积相等且大于后腔区域101b和后腔区域101c各自的容积,其中,后腔区域101b与后腔区域101c也相等,该容积差例如为0.2cc(cubic centimeter,立方厘米)。通常情况下,如果模组壳体1的各个后腔区域的容积中的最大容积差小于或者等于0.5cc,更容易进行各个扬声器单体的匹配。
在本发明的一个具体实施例中,所有扬声器单体2a、2b、2c、2d可以具有相同的外形尺寸,这样模组壳体1可以具有结构和尺寸相同的安装位置。
图7为图1至图5所示实施例中的模组的阻抗随频率变化的曲线,其中,后腔区域104a和后腔区域104d的容积为0.6cc,后腔区域104b和后腔区域104c的容积为0.4cc。根据7所示,本发明多单体扬声器模组能够获得接近900Hz的单一谐振频率,匹配的第一单体2a和第四单体2d的共振频率为990Hz,匹配的第二单体2b和第三单体2c的共振频率为870Hz。
图6为利用图1至图5所示实施例中的模组壳体匹配四个相同的扬声器单体时的阻抗随频率变化的曲线,其中,后腔区域104a和后腔区域104d的容积为0.6cc,后腔区域104b和后腔区域104c的容积为0.4cc。根据图6所示,该种情况下,多单体扬声器模组将存在两个谐振频率,即出现了明显的阻抗双峰问题,这将严重影响产品的性能。
为了便于安装扬声器单体2a、2b、2c、2d,在本发明的一个具体实施例中,参见图5所示,模组壳体1包括前壳1a和后壳1b,前壳1a与后壳1b扣合在一起形成各后腔区域104a、104b、104c、104d。前壳1a与后壳1b扣合在一起后可通过螺钉等紧固件或者超声焊接等手段锁紧固定在一起。
本发明还提供了一种电子设备,该电子设备例如是手机、平板电脑、MP4等,其设置有根据本发明的多单体扬声器模组。
本发明还提供了一种多单体扬声器模组的设计方法,对应图1至图5所示实施例的模组的设计方法包括:
步骤S101,获取给定的用于安装四个扬声器单体的模组壳体1,其中,模组壳体1具有用于安装扬声器单体的各个安装位置101a、101b、101c、101d,及与所有安装位置101a、101b、101c、101d一一对应的各个后腔区域104a、104b、104c、104d。
步骤S102,确定各个后腔区域104a、104b、104c、104d的容积。
步骤S103,根据每一后腔区域104a、104b、104c、104d的容积和多单体扬声器模组的目标谐振频率,确定需要选择的扬声器单体2a、2b、2c、2d的共振频率,以使由每一扬声器单体2a、2b、2c、2d与对应的后腔区域104a、104b、104c、104d形成的单体模组的谐振频率等于该目标谐振频率,该目标谐振频率例如为上述的900Hz。
步骤S104,根据确定的每一共振频率,选择与对应安装位置101a、101b、101c、101d匹配的扬声器单体2a、2b、2c、2d。根据公式(1)和公式(2)可知,扬声器单体的共振频率主要由振动系统的等效质量和支撑系统的等效力顺决定。
步骤S105,将选择的每一扬声器单体2a、2b、2c、2d安装在对应的安装位置101a、101b、101c、101d上,形成多单体扬声器模组。
参见图1至图5所示的实施例,该模组壳体1可以具有四个安装位置101a、101b、101c、101d,该模组壳体1的结构进一步为:对应第一个安装位置101a的后腔区域104a、第一个安装位置101a、第二个安装位置101b、对应第二个安装位置101b的后腔区域104b、对应第三个安装位置101c的后腔区域104c、第三个安装位置101c、第四个安装位置101d、及对应第四个安装位置101d的后腔区域104d在模组壳体1的长度方向上顺次排列。
本说明书中的各个实施例均采用递进的方式描述,各个实施例之间相同相似的部分相互参见即可,每个实施例重点说明的都是与其他实施例的不同之处,而且各个实施例可以根据需要单独使用或者相互结合使用。
虽然已经通过例子对本发明的一些特定实施例进行了详细说明,但是本领域的技术人员应该理解,以上例子仅是为了进行说明,而不是为了限
制本发明的范围。本领域的技术人员应该理解,可在不脱离本发明的范围和精神的情况下,对以上实施例进行修改。本发明的范围由所附权利要求来限定。
Claims (10)
- 一种多单体扬声器模组,其特征在于,包括模组壳体(1)和至少两个扬声器单体(2a、2b、2c、2d);所述模组壳体(1)被设置为具有与所有扬声器单体(2a、2b、2c、2d)一一对应的各个安装位置(101a、101b、101c、101d)、及与所有扬声器单体(2a、2b、2c、2d)一一对应的后腔区域(104a、104b、104c、104d),所述各个后腔区域(104a、104b、104c、104d)的容积中至少有两种不同的数值;每一所述扬声器单体(2a、2b、2c、2d)安装在对应的安装位置(101a、101b、101c、101d)上;每一所述扬声器单体(2a、2b、2c、2d)与对应的后腔区域(104a、104b、104c、104d)形成对应的单体模组,每一所述扬声器单体(2a、2b、2c、2d)的共振频率使得所有单体模组的谐振频率相等。
- 根据权利要求1所述的多单体扬声器模组,其特征在于,所述多单体扬声器模组具有四个扬声器单体(2a、2b、2c、2d),分别为第一单体(2a)、第二单体(2b)、第三单体(2c)和第四单体(2d),所述模组壳体(1)的结构为:对应所述第一单体(2a)的后腔区域(104a)、对应所述第一单体(2a)的安装位置(101a)、对应所述第二单体(2b)的安装位置(101b)、对应所述第二单体(2b)的后腔区域(104b)、对应所述第三单体(2c)的后腔区域(104c)、对应所述第三单体(2c)的安装位置(101c)、对应所述第四单体(2d)的安装位置(101d)、及对应所述第四单体(2d)的后腔区域(104d)在所述模组壳体(1)的长度方向上顺次排列。
- 根据权利要求2所述的多单体扬声器模组,其特征在于,所述模组壳体(1)具有关于一中截面镜像对称的结构,所述中截面位于对应所述第二单体(2b)的后腔区域(104b)与对应所述第三单体(2c)的后腔区域(104c)之间。
- 根据权利要求3所述的多单体扬声器模组,其特征在于,对应所述第一单体(2a)的后腔区域(104a)的容积大于对应所述第二单体(2b) 的后腔区域(104b)的容积。
- 根据权利要求4所述的多单体扬声器模组,其特征在于,对应所述第一单体(2a)的后腔区域(104a)与对应所述第二单体(2b)的后腔区域(104b)之间的容积差等于0.2cc。
- 根据权利要求1至5中任一项所述的多单体扬声器模组,其特征在于,所述各个后腔区域(104a、104b、104c、104d)的容积中的最大容积差小于或者等于0.5cc。
- 根据权利要求1至6中任一项所述的多单体扬声器模组,其特征在于,所有扬声器单体(2a、2b、2c、2d)具有相同的外形尺寸。
- 一种多单体扬声器模组的设计方法,其特征在于,包括:获取给定的用于安装至少两个扬声器单体的模组壳体(1),其中,所述模组壳体(1)具有用于安装扬声器单体的各个安装位置(101a、101b、101c、101d)、及与所有安装位置(101a、101b、101c、101d)一一对应的各个后腔区域(104a、104b、104c、104d);确定各个后腔区域(104a、104b、104c、104d)的容积;根据每一后腔区域(104a、104b、104c、104d)的容积和所述多单体扬声器模组的目标谐振频率,确定需要选择的扬声器单体的共振频率,以使由每一扬声器单体与对应的前腔和对应的后腔区域(104a、104b、104c、104d)形成的单体模组的谐振频率等于所述目标谐振频率;根据确定的每一共振频率,选择与对应安装位置(101a、101b、101c、101d)匹配的扬声器单体(2a、2b、2c、2d);将选择的每一扬声器单体(2a、2b、2c、2d)安装在对应的安装位置(101a、101b、101c、101d)上,形成所述多单体扬声器模组。
- 根据权利要求8所述的设计方法,其特征在于,所述模组壳体(1)具有四个安装位置(101a、101b、101c、101d),所述模组壳体(1)的结构为:对应第一个安装位置(101a)的后腔区域(104a)、第一个安装位置(101a)、第二个安装位置(101b)、对应第二个安装位置(101b)的后腔区域(104b)、对应第三个安装位置(101c)的后腔区域(104c)、 第三个安装位置(101c)、第四个安装位置(101d)、及对应第四个安装位置(101d)的后腔区域(104d)在所述模组壳体(1)的长度方向上顺次排列。
- 一种电子设备,其特征在于,设置有权利要求1至7中任一项所述的多单体扬声器模组。
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