WO2022126768A1 - 一种扬声器箱 - Google Patents

一种扬声器箱 Download PDF

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Publication number
WO2022126768A1
WO2022126768A1 PCT/CN2020/141642 CN2020141642W WO2022126768A1 WO 2022126768 A1 WO2022126768 A1 WO 2022126768A1 CN 2020141642 W CN2020141642 W CN 2020141642W WO 2022126768 A1 WO2022126768 A1 WO 2022126768A1
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Prior art keywords
sound
hole
powder filling
opening area
cavity
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PCT/CN2020/141642
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English (en)
French (fr)
Inventor
肖波
令狐荣林
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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 of WO2022126768A1 publication Critical patent/WO2022126768A1/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
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Definitions

  • the utility model relates to the technical field of electro-acoustic conversion, in particular to a speaker box.
  • Speaker box is a common electronic component, mainly used for the playback of audio signals, and is widely used in smart audio playback devices such as mobile phones, game consoles, and navigators.
  • the loudspeaker box includes a shell with a receiving space, and a sound-producing unit accommodated in the receiving space.
  • the two sides of the sound-producing unit are separated from the casing to form a front sound cavity and a rear cavity, and the front sound cavity is communicated with the outside through a sound guide channel to form a front cavity.
  • the shell is also provided with a powder filling hole and a leakage hole connecting the rear cavity to the outside at different positions.
  • the powder filling hole is sealed by a seal, and the leakage hole is ventilated and isolated from the rear cavity and the outside world through a breathable spacer.
  • the existing technology includes processes such as powder filling, closing powder filling holes, and sealing leakage holes.
  • processes such as powder filling, closing powder filling holes, and sealing leakage holes.
  • process of automation there are many automatic line processes, and the production cost is relatively high.
  • the technical problem to be solved by the utility model is to provide a loudspeaker box which can improve the powder filling efficiency, save the automatic line process and lower the production cost.
  • the utility model provides a speaker box, which includes:
  • the casing has a receiving space, and the casing is provided with an opening area;
  • the sound-generating unit is accommodated in the accommodating space;
  • the sound-generating unit divides the accommodating space into a front sound cavity and a rear cavity, and the opening area is provided with a space for connecting the rear cavity to the outside world
  • the powder filling hole and the leakage hole spaced apart from the powder filling hole;
  • the sound guide channel is formed on the inner side of the casing, the sound guide channel communicates the front sound cavity with the outside world and forms the front cavity together;
  • the sealing member is attached to the opening area and seals the powder filling hole, the sealing member is provided with a through hole corresponding to the leakage hole and exposing the leakage hole;
  • the breathable spacer is attached to the seal and completely covers the through hole.
  • the powder filling holes are at least two.
  • the powder filling holes are four and are arranged at equal intervals around the leakage holes.
  • the powder filling holes are evenly arranged around the edge of the opening area.
  • the casing includes a lower cover and an upper cover that is covered on the lower cover and together encloses the receiving space, the sound-emitting unit and the upper cover are spaced apart to form the front sound cavity, and the sound-emitting unit is spaced from the upper cover to form the front sound cavity.
  • the single body, the upper cover and the lower cover together form the rear cavity; the opening area is arranged on the lower cover.
  • the opening area is formed by a side of the lower cover away from the sound-generating unit being recessed in the direction of the accommodating space.
  • the sum of the thickness of the sealing member and the thickness of the air-permeable insulating member is equal to or less than the depth of the depression in the opening area.
  • an opening area is arranged on the shell, and both the powder filling hole and the leakage hole are arranged in the opening area, so that the powder filling hole and the leakage hole are located in the shell.
  • the same position of the body which is conducive to the powder filling at the powder filling hole and the leakage hole at the same time, so as to improve the powder filling efficiency, and at the same time, the seal and the breathable spacer can be combined together, and the seal and the breathable spacer can be combined in the same process. Fitted to the opening area, saving the automatic line process to reduce the production cost.
  • Fig. 1 is the stereoscopic structure schematic diagram of the speaker box of the present invention
  • Fig. 2 is the exploded schematic diagram of the first part of the three-dimensional structure of the speaker box of the present invention
  • FIG. 3 is an enlarged view of the structure of part B in FIG. 2 .
  • Fig. 4 is the exploded schematic diagram of the second part of the three-dimensional structure of the speaker box of the present invention.
  • FIG. 5 is a cross-sectional view taken along line A-A in FIG. 1 .
  • the embodiment of the present utility model provides a speaker box.
  • the speaker box includes: a housing 1 , a sound-generating unit 2 , a sound-guiding channel 121 , a sealing member 3 , and a ventilating isolation member 4 .
  • the housing 1 includes a lower cover 11 and an upper cover 12 which is covered on the lower cover 11 and jointly encloses a receiving space.
  • the lower cover 11 is provided with an opening area 111 .
  • the sound generating unit 2 is accommodated in the accommodating space, and one side is supported by the upper cover 12 , wherein the sound generating unit 2 includes a diaphragm 21 .
  • the diaphragm 21 and the upper cover 12 are spaced to form a front acoustic cavity 221 , and the sound guiding channel 121 is formed on the inner side of the upper cover 12 .
  • Side vocal structure is formed on the inner side of the upper cover 12 .
  • a portion of the upper cover 12 is recessed in a direction away from the sound-generating unit 2 , and the recessed portion forms a space with the sound-generating unit 2 , thereby enclosing the front sound cavity 221 .
  • the gap between the two can be reduced by only increasing the thickness of the corresponding part of the upper cover 12 without increasing the overall thickness of the casing 1 , so as to reduce the overall thickness of the speaker box.
  • the recessed part of the upper cover 12 is the part corresponding to the sounding unit 2 .
  • the sound-generating unit 2, the lower cover 11, and the upper cover 12 together form a rear cavity 23 for improving low-frequency acoustic performance.
  • the opening area 111 is provided with a powder filling hole 113 connecting the rear cavity 23 to the outside and a leakage hole 112 spaced from the powder filling hole 113 .
  • the area of the leakage hole 112 is smaller than that of the powder filling hole 113 .
  • the powder filling hole 113 is used to fill the sound-absorbing material to improve the acoustic performance of the speaker box, and the leakage hole 112 is used to realize ventilation with the outside.
  • powder filling holes 113 there are at least two powder filling holes 113 , such as two, three, four, five, and so on.
  • the number of powder filling holes 113 may also be one.
  • the multiple powder filling holes 113 are arranged at equal intervals around the leakage holes 112 .
  • the opening area 111 is provided with four powder filling holes 113 , and the four powder filling holes 113 are evenly and equally spaced around the leakage hole 112 and are arranged at the edge of the opening area 111 .
  • the opening area 111 is formed by a side of the lower cover 11 away from the sound generating unit 2 which is recessed in the direction of the accommodating space. In this way, the opening area 111 can be quickly found to perform the opening process of the powder filling hole 113 and the leakage hole 112, so as to ensure that the opening area 111 in the produced product is the same.
  • the sealing member 3 is attached to the opening area 111 and seals the powder filling hole 113 , and the sealing member 3 is provided with a through hole 31 corresponding to the leakage hole 112 and exposing the leakage hole 112 .
  • the breathable spacer 4 is attached to the sealing member 3 and completely covers the through hole 31. Since the breathable spacer 4 is made of a breathable material, after the breathable spacer 4 covers the through hole 31, the rear cavity 23 can pass through The leakage hole 112 and the through hole 31 communicate with the outside air.
  • the sum of the thickness of the sealing member 3 and the thickness of the gas permeable insulating member 4 is equal to the depth of the depression of the opening region 111 . In this way, the flatness of the lower cover 11 in the speaker box can be ensured, so as to enhance the beauty of the overall structure.
  • the sum of the thickness of the sealing member 3 and the thickness of the air-permeable insulating member 4 may also be smaller than the depth of the depression of the opening region 111 . In this way, when the sealing member 3 and the air-permeable spacer 4 are attached to the opening area 111 , the height of the opening area 111 will not be increased.
  • the lower cover 11 is provided with an opening area 111, and both the powder filling hole 113 and the leakage hole 112 are set in the opening area 111, so that the powder filling hole 113 and the The leakage hole 112 is located at the same position of the lower cover 11, which is conducive to simultaneously filling powder at the powder filling hole 113 and the leakage hole 112, so as to improve the powder filling efficiency, and at the same time, the sealing member 3 and the ventilation spacer 4 can be combined together.
  • the sealing member 3 and the ventilating spacer 4 are attached to the opening area 111 in the same process, which saves the automatic line process and reduces the production cost.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Manufacturing & Machinery (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

本实用新型提供了一种扬声器箱，其包括：壳体，所述壳体具有收容空间，所述壳体设有一开孔区域；发声单体，所述发声单体收容于所述收容空间内；所述发声单体将所述收容空间分隔成前声腔和后腔，所述开孔区域设置有将所述后腔连通至外界的灌粉孔及与所述灌粉孔间隔的泄露孔；导声通道，所述导声通道形成于所述壳体的内侧，所述导声通道将所述前声腔与外界连通并共同形成前腔；密封件，所述密封件贴设于所述开孔区域并将所述灌粉孔密封，所述密封件设置有与所述泄露孔对应并将所述泄露孔露出的通孔；透气隔离件，所述透气隔离件贴设于所述密封件上并完全覆盖所述通孔。本实用新型可以提升灌粉效率、节省自动线工序、以及将低生产成本。

Description

一种扬声器箱 技术领域
本实用新型涉及电声转换技术领域，尤其涉及一种扬声器箱。
 背景技术
扬声器箱是一种常见的电子元器件，主要用于音频信号的播放，广泛应用于手机、游戏机、导航仪等智能音频播放设备上。
扬声器箱包括具有收容空间的壳体、收容于收容空间内的发声单体，发声单体的两侧分别与壳体间隔形成前声腔和后腔，前声腔通过导声通道与外界连通形成前腔，壳体上还分别在不同的位置设置有将后腔连通至外界的灌粉孔以及泄露孔，灌粉孔通过密封件进行密封，泄露孔通过透气隔离件进行后腔与外界的透气隔离。
现有工艺中包括灌粉、封闭灌粉孔、封闭泄露孔等工序，在自动化实现过程中，自动线工序多，其生产成本相对较高。
 技术问题
本实用新型要解决的技术问题是提供一种能提升灌粉效率、节省自动线工序、且生产成本较低的扬声器箱。
 技术解决方案
为解决上述技术问题，本实用新型提供了一种扬声器箱，其包括：
壳体，所述壳体具有收容空间，所述壳体设有一开孔区域；
发声单体，所述发声单体收容于所述收容空间内；所述发声单体将所述收容空间分隔成前声腔和后腔，所述开孔区域设置有将所述后腔连通至外界的灌粉孔及与所述灌粉孔间隔的泄露孔；
导声通道，所述导声通道形成于所述壳体的内侧，所述导声通道将所述前声腔与外界连通并共同形成前腔；
密封件，所述密封件贴设于所述开孔区域并将所述灌粉孔密封，所述密封件设置有与所述泄露孔对应并将所述泄露孔露出的通孔；以及，
透气隔离件，所述透气隔离件贴设于所述密封件上并完全覆盖所述通孔。
优选的，所述灌粉孔至少为两个。
优选的，所述灌粉孔为四个且环绕所述泄露孔等间距设置。
优选的，所述灌粉孔均匀的环绕设置于所述开孔区域的边缘位置。
优选的，所述壳体包括下盖以及盖设于所述下盖并共同围成所述收容空间的上盖，所述发声单体与所述上盖间隔形成所述前声腔，所述发声单体、所述上盖以及所述下盖共同围成所述后腔；所述开孔区域设置于所述下盖。
优选的，所述开孔区域由所述下盖远离所述发声单体的一侧向所述收容空间的方向凹陷形成。
优选的，所述密封件的厚度与所述透气隔离件的厚度之和等于或小于所述开孔区域凹陷的深度。
 有益效果
与相关技术相比，本实用新型的扬声器箱中，通过在壳体上设置一开孔区域，并将灌粉孔及泄露孔均设于开孔区域，从而使灌粉孔及泄露孔位于壳体的相同位置，这样有利于同时在灌粉孔及泄露孔处进行灌粉，以提升灌粉效率，同时使得密封件和透气隔离件能够复合在一起，在同一工序将密封件和透气隔离件贴合到开孔区域上，节省自动线工序，以降低生产成本。
 附图说明
为了更清楚地说明本实用新型实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本实用新型的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图，其中：
图1为本实用新型扬声器箱的立体结构示意图；
图2为本实用新型扬声器箱的立体结构第一部分分解示意图；
图3为图2中B部分的结构放大图。
图4为本实用新型扬声器箱的立体结构第二部分分解示意图；
图5为图1中沿A-A线的剖视图。
其中，1、壳体；11、下盖；111、开孔区域；112、泄露孔；113、灌粉孔；12、上盖；121、导声通道；2、发声单体；21、振膜；22、前腔；221、前声腔；23、后腔；3、密封件；31、通孔；4、透气隔离件。
 本发明的最佳实施方式
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本实用新型的一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本实用新型保护的范围。
本实用新型实施例提供了一种扬声器箱，结合图1至图5所示，扬声器箱包括：壳体1、发声单体2、导声通道121、密封件3、以及透气隔离件4。
具体地，壳体1包括下盖11、以及盖设于下盖11并共同围成收容空间的上盖12。其中，下盖11设有一开孔区域111。
具体地，发声单体2收容于收容空间内，一侧支撑于上盖12，其中，发声单体2包括振膜21。
具体地，振膜21与上盖12间隔围成前声腔221，导声通道121形成于上盖12的内侧，导声通道121将前声腔221与外界连通并共同形成前腔22，用于形成侧方发声结构。
在本实施例中，上盖12的部分向远离发声单体2的方向凹陷，该凹陷部分与发声单体2形成间隔，从而围成前声腔221。这样两者之间的间隔可以通过只增加上盖12对应部分的厚度，无需增加壳体1的整体厚度，以达到缩小扬声器箱整体厚度的效果。
其中，上盖12凹陷的部分为对应发声单体2的部分。
具体地，发声单体2、下盖11、以及上盖12共同围成后腔23，用于改善低频声学性能。
具体地，开孔区域111设置有将后腔23连通至外界的灌粉孔113及与灌粉孔113间隔的泄露孔112。
在本实施例中，泄露孔112的面积小于灌粉孔113的面积。
其中，灌粉孔113用于填充吸音材料以提升扬声器箱的声学性能，泄露孔112用于实现与外部通气。
具体地，灌粉孔113至少为两个，如两个、三个、四个、五个等。当然，根据实际需求，灌粉孔113也可以为一个。
具体地，当灌粉孔113为多个时，多个灌粉孔113环绕泄露孔112等间距设置。
在本实施例中，开孔区域111设置有四个灌粉孔113，四个灌粉孔113环绕泄露孔112均匀且等间距的设置在开孔区域111的边缘位置。
更进一步地，开孔区域111由下盖11远离发声单体2的一侧向收容空间的方向凹陷形成。这样可以快速找到开孔区域111进行灌粉孔113与泄露孔112的开孔工序，以保证生产的产品中开孔区域111相同。
具体地，密封件3贴设于开孔区域111并将灌粉孔113密封，密封件3上设置有与泄露孔112对应并将泄露孔112露出的通孔31。
具体地，透气隔离件4贴设于密封件3上并完全覆盖通孔31，由于透气隔离件4选用的是透气材料，因此，透气隔离件4覆盖通孔31后，后腔23还能通过泄露孔112以及通孔31与外界的空气流通。
更进一步地，密封件3的厚度与透气隔离件4的厚度之和等于开孔区域111凹陷的深度。这样可以保证扬声器箱中下盖11的平整，以提升整体结构的美感。
当然，密封件3的厚度与透气隔离件4的厚度之和也可以小于开孔区域111凹陷的深度。这样当密封件3与透气隔离件4贴设于开孔区域111后，不会增加开孔区域111的高度。
与相关技术相比，本实用新型的扬声器箱中，通过在下盖11上设置开孔区域111，并将灌粉孔113及泄露孔112均设于开孔区域111，从而使灌粉孔113及泄露孔112位于下盖11的相同位置，这样有利于同时在灌粉孔113及泄露孔112处进行灌粉，以提升灌粉效率，同时使得密封件3和透气隔离件4能够复合在一起，在同一工序将密封件3和透气隔离件4贴合到开孔区域111上，节省自动线工序，以降低生产成本。
以上所述的仅是本实用新型的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本实用新型创造构思的前提下，还可以做出改进，但这些均属于本实用新型的保护范围。

Claims (7)

  1. 一种扬声器箱，其特征在于，其包括：
    壳体，所述壳体具有收容空间，所述壳体设有一开孔区域；
    发声单体，所述发声单体收容于所述收容空间内；所述发声单体将所述收容空间分隔成前声腔和后腔，所述开孔区域设置有将所述后腔连通至外界的灌粉孔及与所述灌粉孔间隔的泄露孔；
    导声通道，所述导声通道形成于所述壳体的内侧，所述导声通道将所述前声腔与外界连通并共同形成前腔；
    密封件，所述密封件贴设于所述开孔区域并将所述灌粉孔密封，所述密封件设置有与所述泄露孔对应并将所述泄露孔露出的通孔；以及，
    透气隔离件，所述透气隔离件贴设于所述密封件上并完全覆盖所述通孔。
  2. 根据权利要求1所述的扬声器箱，其特征在于，所述灌粉孔至少为两个。
  3. 根据权利要求2所述的扬声器箱，其特征在于，所述灌粉孔为四个且环绕所述泄露孔等间距设置。
  4. 根据权利要求2所述的扬声器箱，其特征在于，所述灌粉孔均匀的环绕设置于所述开孔区域的边缘位置。
  5. 根据权利要求1所述的扬声器箱，其特征在于，所述壳体包括下盖以及盖设于所述下盖并共同围成所述收容空间的上盖，所述发声单体与所述上盖间隔形成所述前声腔，所述发声单体、所述上盖以及所述下盖共同围成所述后腔；所述开孔区域设置于所述下盖。
  6. 根据权利要求5所述的扬声器箱，其特征在于，所述开孔区域由所述下盖远离所述发声单体的一侧向所述收容空间的方向凹陷形成。
  7. 根据权利要求6所述的扬声器箱，其特征在于，所述密封件的厚度与所述透气隔离件的厚度之和等于或小于所述开孔区域凹陷的深度。
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