WO2015027496A1 - 一种迷你音响 - Google Patents

一种迷你音响 Download PDF

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Publication number
WO2015027496A1
WO2015027496A1 PCT/CN2013/082742 CN2013082742W WO2015027496A1 WO 2015027496 A1 WO2015027496 A1 WO 2015027496A1 CN 2013082742 W CN2013082742 W CN 2013082742W WO 2015027496 A1 WO2015027496 A1 WO 2015027496A1
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WO
WIPO (PCT)
Prior art keywords
diaphragm
vibrating membrane
outer frame
mini
housing
Prior art date
Application number
PCT/CN2013/082742
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English (en)
French (fr)
Inventor
刘骏涛
Original Assignee
Liu Juntao
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.)
Filing date
Publication date
Application filed by Liu Juntao filed Critical Liu Juntao
Publication of WO2015027496A1 publication Critical patent/WO2015027496A1/zh

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Classifications

    • 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
    • H04R1/283—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm
    • H04R1/2834—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm for loudspeaker transducers

Definitions

  • the present invention relates to the field of audio and, more particularly, to a mini stereo. ⁇ Background technique ⁇
  • Mini-speaker is a kind of micro-speaker. Many people also call it "USB audio". It is connected to a computer or USB jack with a USB interface. It is compact, easy to carry and fashionable. The shape design tube is about fashion, small and tiny, and has a wide variety. Mini speakers need only be connected to devices such as laptops and mobile phones, and you can play music without the need for a power supply. It generally includes a housing, a circuit board, a horn, and a battery that are fixed inside the housing. However, the speaker is only set inside the mini speaker, and the sound quality of the sound is poor.
  • the technical problem to be solved by the present invention is to provide a mini-sound with better sound quality.
  • a mini speaker comprising a housing, a speaker and a circuit board fixed inside the housing, and a diaphragm disposed on a rear side of the speaker.
  • the vibrating membrane is in close fitting relationship with the casing.
  • the mini speaker further includes a diaphragm fixing frame that is disposed inside the housing to fix the diaphragm.
  • the diaphragm is made of a soft material, and the housing is generally made of a hard material. If the two are directly fixed, the diaphragm may fall off or the fixing may not be secure. Adjusting the sound quality; a diaphragm fixing frame transition is provided between the diaphragm and the housing, so that the diaphragm does not directly contact the housing, so that it is firmly fixed to the diaphragm fixing frame with glue, and then The normal operation of the diaphragm can be ensured by fixing the diaphragm fixing frame seamlessly inside the casing.
  • the diaphragm fixing frame includes an outer frame adapted to the housing and a diaphragm escaping hole disposed inside the outer frame and adapted to the shape of the diaphragm, the outer frame and the outer frame An interference fit between the housings, the vibrating membrane avoiding holes and the vibrating membrane are in close fitting. This is the vibration fixed The specific structure of the box.
  • the vibrating membrane has a round cake shape
  • the corresponding diaphragm avoidance hole has an annular shape
  • an inner diameter of the vibrating membrane avoiding hole is equal to a diameter of the vibrating membrane, and the vibrating membrane avoids a rim of the hole
  • An annular platform projecting inwardly is provided, the inner diameter of the annular platform being smaller than the diameter of the diaphragm.
  • the vibrating membrane is provided with a concave annular groove, and the outer diameter of the annular groove is equal to the inner diameter of the annular platform.
  • the diaphragm can be fixed to the diaphragm fixing frame by applying a glue to the diaphragm outside the annular groove and bonding it to the ring-shaped platform.
  • the annular platform is located at a height of 1/2 of the diaphragm escaping hole.
  • the diaphragm is entirely inside the diaphragm fixing frame, and the diaphragm is made of a soft material and is easily damaged. The diaphragm can be protected during the installation process, thereby reducing the breakage rate of the product.
  • the total height of the outer frame is equal to the height of the diaphragm avoidance hole, and the end of the outer frame is at the same height as the end of the diaphragm avoidance hole.
  • the outer frame is the same height as the diaphragm to avoid emptying, and it is convenient to fix the diaphragm fixing frame without increasing the volume of the diaphragm fixing frame occupying the inside of the casing.
  • the casing has a square shape, and the outer frame is also in the shape of a square.
  • the outer diameter of the outer frame is equal to the inner diameter of the casing, and the inner diameter of the outer frame is equal to the diaphragm to avoid The outer diameter of the hole; the diaphragm fixing frame is fixed inside the casing with glue.
  • the fixed diaphragm of the vibrating membrane can not only firmly fix the vibrating membrane fixing frame, but also the glue can fill the gap between the vibrating membrane fixing frame and the casing to further ensure the vibrating membrane to improve the sound quality.
  • a silicone weight reducing hole is disposed between the outer frame and the diaphragm avoidance hole. It can reduce the weight of your audio, and it is easy to carry and use.
  • the vibrating membrane is fixed between the circuit board and the Rab, and the Rab and the circuit board are connected by a wire; and the vibrating membrane fixing frame is provided with a wire avoiding hole.
  • This is the positional relationship between the diaphragm fixing frame and the circuit board and the louver, and the horn and the circuit board are connected by wires.
  • a wire escaping hole is provided on the diaphragm fixing frame for the purpose of facilitating the wire fixing frame through the diaphragm.
  • the invention has a vibrating membrane disposed on the rear side of the squad, and the vibrating membrane has the functions of improving the bass and the resonance effect, and the sound quality of the mini-audio is improved to a certain extent, so that the mini-audio emits a better sound quality and can Give people a sense of hearing.
  • FIG. 1 is a schematic overall view of a mini stereo according to an embodiment of the present invention.
  • FIG. 2 is a schematic view of a diaphragm of an embodiment of the present invention.
  • FIG. 3 is a schematic view of a diaphragm fixing frame according to an embodiment of the present invention.
  • Fig. 4 is a schematic view showing the assembly of the diaphragm and the diaphragm fixing frame according to the embodiment of the present invention.
  • a mini speaker includes a housing, a horn fixed to the inside of the housing, and a circuit board, and a diaphragm disposed on a rear side of the louver, the vibrating membrane being tightly coupled to the housing.
  • the invention has a vibrating membrane disposed on the rear side of the horn, and the vibrating membrane has the functions of improving the bass and resonance effects of the horn, and the sound quality of the mini-audio is improved to a certain extent, so that the mini-audio emits a better sound quality and can give a human voice. An auditory enjoyment.
  • the mini speaker 1 includes a housing and a speaker fixed inside the casing, a battery circuit board, and a diaphragm 5 fixed between the speaker and the circuit board.
  • the diaphragm 5 can improve the vibration of the sound, thereby improving the sound quality of the mini stereo 1.
  • the diaphragm 5 is made of a soft material, and the housing is mostly made of hard plastic or metal. If the two are directly fixed, the diaphragm 5 may fall off or be unsecured.
  • the mini stereo 1 also includes a diaphragm fixing frame 6, which will be the diaphragm 5 It is fixed to the diaphragm fixing frame 6, and the diaphragm fixing frame 6 is fixed in the casing.
  • the diaphragm fixing frame 6 includes an outer frame 61 adapted to the housing and a diaphragm avoiding hole 62 disposed inside the outer frame and adapted to the shape of the diaphragm 5, and an interference fit between the outer frame 61 and the housing, the diaphragm is avoided
  • the hole 62 is tightly fitted with the diaphragm 5, so that the diaphragm 5 can be brought into seamless contact with the diaphragm fixing frame 6, and the diaphragm fixing frame 6 is in seamless contact with the casing.
  • the diaphragm 5 is in the shape of a disk.
  • the diaphragm 5 is provided with a concave annular groove 51.
  • the corresponding diaphragm relief hole 62 has an annular shape, and the inner diameter of the diaphragm relief hole 62 is equal to the diaphragm 5.
  • the diameter is provided on the rim of the diaphragm relief hole 62 with an annular platform 63 projecting inward and having an inner diameter smaller than the diameter of the diaphragm 5; the outer diameter of the annular groove 51 is the same as the inner diameter of the annular platform 63.
  • the diaphragm can be fixed to the diaphragm fixing frame 6 by applying a glue to the diaphragm 5 outside the annular groove 51 and bonding it to the annular stage 63.
  • the annular platform 63 is located at a height of 1/2 of the edge of the diaphragm avoidance hole 62, so that the diaphragm 5 is entirely inside the diaphragm fixing frame 6, and the diaphragm 5 is made of a soft material and is easily damaged.
  • the diaphragm 5 can be protected during installation to reduce the breakage rate of the product.
  • the total height of the outer frame 61 is equal to the height of the diaphragm avoidance hole 62, and the end of the outer frame 61 is at the same height as the end of the diaphragm avoidance hole 62.
  • the outer frame 61 has the same height as the diaphragm avoidance space 62, and the contact area between the fixed diaphragm fixing frame 6 and the casing can be increased without increasing the volume of the diaphragm casing 6 occupying the inside of the casing.
  • a silicone weight reducing hole is provided between the outer frame 62 and the diaphragm avoidance hole 52.
  • the circuit board and the Rab are connected by wires, and the vibrating membrane 5 is fixed in the casing between the horn and the circuit board, and the wire escaping hole (not shown) is arranged on the diaphragm fixing frame 6 to facilitate the vibration of the wire.
  • the outer casing 61 has a square shape, and the outer frame 61 has an outer diameter equal to the inner diameter of the outer casing 61.
  • the inner diameter of the outer frame 61 is equal to the outer diameter of the diaphragm avoidance hole 62;
  • the film fixing frame 6 is fixed inside the casing with glue.
  • the vibrating membrane fixing frame 6 is fixed by the glue, and the vibrating membrane fixing frame 6 can be firmly fixed, and the glue can also fill the gap between the vibrating membrane fixing frame 6 and the casing, further ensuring the effect of the vibrating membrane 5 to improve the sound quality.
  • the circuit board is provided with a usb interface connected to the external usb data line, and correspondingly, a usb interface avoidance hole is disposed on the housing.

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  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

一种迷你音响（1），包括壳体，固定在所述壳体内部的喇叭和电路板，还包括一设置在喇叭后侧的振动膜（5），所述振动膜（5）与壳体之间紧密配合。由于在喇叭后侧设置了振动膜（5），而振动膜（5）具有提供喇叭低音和共振效果的作用，在一定程度上能够改善迷你音响（1）的音质。

Description

一种迷你音响
【技术领域】
本发明涉及音响领域， 更具体的说， 涉及一种迷你音响。 【背景技术】
迷你音响 （mini-speaker )是一种微型音响， 很多人也称其为 "USB音响"， 以 USB接口连接电脑或 USB插孔， 小巧， 方便携带， 款式新颖。 外形设计筒约 时尚， 小巧玲珑， 品种繁多。 迷你音箱只需与笔记本电脑、 手机等设备连接， 无需电源供给， 就能播放音乐。 一般包括壳体， 固定在壳体内部的电路板、 喇 叭、 电池。 但是只在迷你音响内部设置喇叭， 音响的音质较差。
【发明内容】
本发明所要解决的技术问题是提供一种音质较佳的迷你音响。
本发明的目的是通过以下技术方案来实现的： 一种迷你音响， 包括壳体、 固定在所述壳体内部的喇叭和电路板， 还包括一设置在所述喇叭后侧的振动膜， 所述的振动膜与壳体之间紧密配合。
优选的， 所述的迷你音响还包括一设置在所述壳体内部固定所述振动膜的 振动膜固定框。 振动膜采用的是软性材质， 而壳体一般都是采用较硬的材质， 将两者之间直接固定， 那么振动膜可能会发生脱落或者固定不牢靠的情况， 这 样振动膜就起不到调节音质的作用； 在振动膜和壳体之间设置了振动膜固定框 过渡， 从而振动膜就不会与壳体之间直接接触， 这样只要用胶水牢固的固定在 振动膜固定框上， 然后在将振动膜固定框无缝固定在壳体内部就可以保证振动 膜正常的工作。
优选的， 所述的振动膜固定框包括与所述壳体相适应的外框和设置在所述 外框内部的与所述振动膜形状相适应的振动膜避让孔， 所述外框与所述的壳体 之间过盈配合， 所述振动膜避让孔与所述振动膜之间紧密配合。 这是震动固定 框的具体结构。
优选的， 所述的振动膜呈圓饼状， 对应的所述振动膜避让孔呈圓环状， 所 述振动膜避让孔的内径等于所述振动膜的直径， 所述振动膜避让孔的缘边上设 置有向内凸出的环状平台， 所述环状平台的内径小于所述振动膜的直径。 只要 将振动膜用胶水固定在振动膜固定框的环状平台上就能够使得振动膜牢固固定 在振动膜固定框上。
优选的， 所述振动膜上设置有一下凹的环状凹槽， 所述环状凹槽的外径等 于所述环状平台的内径。 在这里， 只要将环状凹槽外部的振动膜涂上胶水与环 状平台粘合在一起就可以将振动膜固定在振动膜固定框上。
优选的， 所述环状平台位于所述振动膜避让孔的 1/2高度处。 这样振动膜整 个就处于振动膜固定框的内部， 而振动膜是由较软的材质制作而成容易受到损 坏， 可以在安装过程中保护振动膜， 从而降低产品的折损率。
优选的， 所述的外框的总高度等于所述振动膜避让孔的高度， 且所述外框 的端部与所述振动膜避让孔的端部位于同一高度。 外框与振动膜避让空的高度 相同， 在不增大振动膜固定框占用壳体内部的体积的同时， 又方便固定振动膜 固定框。
优选的， 所述的壳体呈方块状， 所述外框也呈方块状， 所述外框的外径等 于所述壳体的内径， 所述外框的内径等于所述振动膜避让孔的外径； 所述的振 动膜固定框用胶水固定在所述壳体内部。 这是迷你音响的总体外形， 采用胶水 固定振动膜固定框不仅可以牢固固定振动膜固定框， 而且胶水还可以填充振动 膜固定框与壳体之间的缝隙， 进一步保证振动膜改善音质的作用。
优选的， 所述的外框与振动膜避让孔之间设置有掏胶减重孔。 可以减轻迷 你音响整体的重量， 方便携带和使用。
优选的， 所述的振动膜固定在所述电路板与喇八之间， 所述的喇八与电路 板之间通过导线连通； 所述的振动膜固定框上设置有导线避让孔。 这是振动膜 固定框与电路板和喇八之间的位置关系， 而喇叭与电路板之间是用导线连通的， 在振动膜固定框上设置导线避让孔是为了方便导线通过振动膜固定框。 本发明由于在喇八的后侧设置了振动膜， 而振动膜具有提高喇八低音和共 振效果的作用， 在一定程度上改善了迷你音响的音质， 从而使迷你音响发出较 佳的音质， 能够给人一种听觉上的享受。
【附图说明】
图 1是本发明实施例的迷你音响的整体示意图；
图 2是本发明实施例的振动膜示意图；
图 3是本发明实施例的振动膜固定框示意图；
图 4是本发明实施例的振动膜与振动膜固定框的组装后的示意图。
其中： 1、 迷你音响； 5、 振动膜； 51、 环状凹槽； 6、 振动膜固定框； 61、 外框； 62、 振动膜避让孔； 63、 环状平台。
【具体实施方式】
一种迷你音响， 包括壳体， 固定在壳体内部的喇叭和电路板， 还包括一设置 在所述喇八后侧的振动膜， 所述的振动膜与壳体之间紧密配合。 本发明由于在 喇叭的后侧设置了振动膜， 而振动膜具有提高喇叭低音和共振效果的作用， 在 一定程度上改善了迷你音响的音质， 从而使迷你音响发出较佳的音质， 能够给 人一种听觉上的享受。
下面结合附图和较佳的实施例对本发明作进一步说明。
如图 1—4所示， 迷你音响 1包括壳体和固定在壳体内部的喇叭、 电池电路板 及固定在喇叭与电路板之间的振动膜 5。 振动膜 5可以提高声音的震动效果， 从 而提高迷你音响 1的音质。
一般， 振动膜 5都是由软性材质制成， 而壳体采用的多为硬塑料或者金属材 质， 若将两者之间直接固定， 那么振动膜 5 可能会发生脱落或者固定不牢靠的 情况， 为了解决这种情况， 迷你音响 1还包括一个振动膜固定框 6, 将振动膜 5 固定在振动膜固定框 6上， 再将振动膜固定框 6固定在壳体内。 振动膜固定框 6 包括与壳体相适应的外框 61和设置在外框内部的与振动膜 5形状相适应的振动 膜避让孔 62, 外框 61与壳体之间过盈配合， 振动膜避让孔 62与所述振动膜 5 之间紧密配合， 这样就可以使得振动膜 5与振动膜固定框 6之间无缝接触， 且 振动膜固定框 6与壳体之间无缝接触。
振动膜 5呈圓饼状， 振动膜 5上设置有一下凹的环状凹槽 51 , 对应的振动膜 避让孔 62呈圓环状， 且振动膜避让孔 62的内径等于所述振动膜 5的直径， 在 振动膜避让孔 62的缘边上设置有向内凸出的且内径小于振动膜 5直径的环状平 台 63; 环状凹槽 51的外径与环状平台 63的内径相同。 只要将环状凹槽 51外部 的振动膜 5涂上胶水与环状平台 63粘合在一起就可以将振动膜固定在振动膜固 定框 6上。 环状平台 63位于振动膜避让孔 62边缘的 1/2高度处， 这样振动膜 5 整个就处于振动膜固定框 6的内部， 而振动膜 5是由较软的材质制作而成容易 受到损坏， 可以在安装过程中保护振动膜 5 , 从而降低产品的折损率。 外框 61 的总高度等于振动膜避让孔 62的高度， 且外框 61的端部与所述振动膜避让孔 62的端部位于同一高度。 外框 61与振动膜避让空 62的高度相同， 在不增大振 动膜固定框 6 占用壳体内部的体积的同时， 又可以增大固定振动膜固定框 6与 壳体的接触面积。 为了减轻迷你音响 1 的重量， 在外框 62与振动膜避让孔 52 之间设置有掏胶减重孔。
电路板与喇八之间通过导线连接， 振动膜 5固定在喇叭与电路板之间的壳体 内， 在振动膜固定框 6上设置有导线避让孔（图中未标出）， 方便导线通过振动 膜固定框 6。
壳体呈方块状， 外框 61也呈方块状， 外框 61的外径等于所述壳体的内径， 所述外框 61的内径等于所述振动膜避让孔 62的外径； 振动膜固定框 6用胶水 固定在所述壳体内部。 采用胶水固定振动膜固定框 6 不仅可以牢固固定振动膜 固定框 6, 而且胶水还可以填充振动膜固定框 6与壳体之间的缝隙， 进一步保证 振动膜 5改善音质的作用。 电路板上设置有与外接 usb数据线连接的 usb接口，对应的在壳体上设置 usb 接口避让孔。
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明， 不能 认定本发明的具体实施只局限于这些说明。 对于本发明所属技术领域的普通技 术人员来说， 在不脱离本发明构思的前提下， 还可以做出若干筒单推演或替换， 都应当视为属于本发明的保护范围。

Claims

权利要求
1、 一种迷你音响， 包括壳体、 固定在所述壳体内部的喇叭和电路板， 其特 征在于， 还包括一设置在所述喇八后侧的振动膜， 所述的振动膜与壳体之间紧 密配合。
2、 如权利要求 1所述的迷你音响， 其特征在于， 所述的迷你音响还包括一 固定所述振动膜的振动膜固定框。
3、 如权利要求 2所述的迷你音响， 其特征在于， 所述的振动膜固定框包括 与所述壳体相适应的外框和设置在所述外框内部的与所述振动膜形状相适应的 振动膜避让孔； 所述外框与所述的壳体之间过盈配合， 所述振动膜避让孔与所 述振动膜之间紧密配合。
4、 如权利要求 3所述的迷你音响， 其特征在于， 所述的振动膜呈圓饼状， 对应的所述振动膜避让孔呈圓环状， 所述振动膜避让孔的内径等于所述振动膜 的直径， 所述振动膜避让孔的边缘上设置有向内凸出的环状平台， 所述环状平 台的内径小于所述振动膜的直径。
5、 如权利要求 4所述的迷你音响， 其特征在于， 所述振动膜上设置有一下 凹的环状凹槽， 所述环状凹槽的外径等于所述环状平台的内径。
6、 如权利要求 5所述的迷你音响， 其特征在于， 所述环状平台位于所述振 动膜避让孔的 1/2高度处。
7、 如权利要求 5所述的迷你音响， 其特征在于， 所述的外框的总高度等于 所述振动膜避让孔的高度， 且所述外框的端部与所述振动膜避让孔的端部位于 同一高度。
8、 如权利要求 7所述的迷你音响， 其特征在于， 所述的壳体呈方块状， 所 述外框也呈方块状， 所述外框的外径等于所述壳体的内径， 所述外框的内径等 于所述振动膜避让孔的外径； 所述的振动膜固定框用胶水固定在所述壳体内部。
9、 如权利要求 8所述的迷你音响， 其特征在于， 所述的外框与振动膜避让 孔之间设置有掏胶减重孔。
10、 如权利要求 2-9任一所述的迷你音响， 其特征在于， 所述的振动膜固定 在所述电路板与喇叭之间， 所述的喇叭与电路板之间通过导线连通； 所述的振 动膜固定框上设置有导线避让孔。
PCT/CN2013/082742 2013-08-29 2013-08-30 一种迷你音响 WO2015027496A1 (zh)

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