TWI856396B - Speaker structure for increasing low-frequency sensitivity - Google Patents
Speaker structure for increasing low-frequency sensitivity Download PDFInfo
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- TWI856396B TWI856396B TW111139634A TW111139634A TWI856396B TW I856396 B TWI856396 B TW I856396B TW 111139634 A TW111139634 A TW 111139634A TW 111139634 A TW111139634 A TW 111139634A TW I856396 B TWI856396 B TW I856396B
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- 230000035945 sensitivity Effects 0.000 title claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 59
- 238000009423 ventilation Methods 0.000 claims abstract description 44
- 239000002657 fibrous material Substances 0.000 claims description 10
- 239000004745 nonwoven fabric Substances 0.000 claims description 8
- 239000002861 polymer material Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000013017 mechanical damping Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
Description
本發明提供了一種低頻感度提升的揚聲器，尤指一種可以透過使用通氣材料來改善微型揚聲器低頻感度的低頻感度提升的揚聲器。 The present invention provides a speaker with improved low-frequency sensitivity, in particular, a speaker with improved low-frequency sensitivity that can improve the low-frequency sensitivity of a miniature speaker by using a ventilated material.
隨著半導體技術的發展，體現於人們使用的消費性電子產品結果便是各類可以隨身攜帶的消費性電子產品越發輕薄化。具體來說，現有大多個人使用的消費性電子產品無可避免的需要重視有關視覺和聽覺的表現效果。因此，關於面板或是揚聲器等表現便顯得十分重要。 With the development of semiconductor technology, the result is that various types of consumer electronic products that people can carry around are becoming thinner and lighter. Specifically, most of the current consumer electronic products used by individuals inevitably need to pay attention to the visual and auditory performance. Therefore, the performance of the panel or speaker is very important.
想當然爾，如手機、平板電腦甚或是筆記型電腦等消費性電子產品越趨薄型化，相應地其中所應用的各種電子元件也需要薄型化；於此同時，在進行薄型化和小型化的開發過程中又不可以喪失其原本應有的視覺和聽覺表現效果。 As expected, consumer electronic products such as mobile phones, tablet computers, and even laptops are becoming thinner and thinner, and the various electronic components used in them also need to be thinner; at the same time, the visual and auditory performance effects should not be lost during the development process of thinning and miniaturization.
而有關大多數消費性電子產品所使用的小型化電子元件之一，微型揚聲器(Micro Speaker)就是一個很重要的零件。具體來說，微型揚聲器可以直接決定消費性電子產品對於消費者聽覺感受表現的好壞。特別是音質的部份，一直是微型揚聲器(Micro Speaker)需要關注的重點項目之一。 As one of the miniaturized electronic components used in most consumer electronic products, the micro speaker is a very important part. Specifically, the micro speaker can directly determine the quality of the consumer electronic product's auditory experience for consumers. In particular, the sound quality has always been one of the key items that micro speakers need to pay attention to.
有鑑於微型揚聲器各個零件為因應微型化需求，均採用更為輕薄的零組件；除此之外，也因應薄型化的緣故，造成振膜內容腔容積不足。如此一來，在振膜的振動幅度下降加上後腔容積不足的狀況下，微型揚聲器的低音頻感度表現不佳。而現有的技術為了解決相關問題，紛紛嘗 試了各種方式。其中，如從結構面提升後容腔容積雖然可行，但伴隨著工藝複雜且技術層面高的缺點。進一步地，假若採用更輕質的振膜材料，將會有技術層面高且價格昂貴的缺點。 In view of the fact that all parts of the micro-speaker are made of lighter and thinner components in response to the demand for miniaturization; in addition, due to the thinness, the volume of the diaphragm cavity is insufficient. As a result, the bass frequency sensitivity of the micro-speaker is poor when the vibration amplitude of the diaphragm decreases and the volume of the rear cavity is insufficient. In order to solve the relevant problems, the existing technology has tried various methods. Among them, although it is feasible to increase the volume of the rear cavity from the structural surface, it is accompanied by the disadvantages of complex process and high technical level. Furthermore, if a lighter diaphragm material is used, it will have the disadvantages of high technical level and high price.
有鑑於上述手段有如此缺點，更有人嘗試在微型揚聲器後腔框架上開通氣孔的方式嘗試解決此問題。但這麼做卻會導致低頻共振點機械品質因子太高，且整體機械阻尼太小之缺點。 In view of the shortcomings of the above methods, some people have tried to solve this problem by opening vents on the rear cavity frame of the micro speaker. However, this will result in the disadvantages of too high mechanical quality factor at the low-frequency resonance point and too small overall mechanical damping.
為解決先前技術中所提及的問題，本發明揭示了一種低頻感度提升的揚聲器。具體來說，該一種低頻感度提升的揚聲器由一框架、一振膜、一音圈、一震動間隙、一軛鐵、一第一通氣材料以及一第二通氣材料組成。 In order to solve the problems mentioned in the prior art, the present invention discloses a speaker with enhanced low-frequency sensitivity. Specifically, the speaker with enhanced low-frequency sensitivity is composed of a frame, a diaphragm, a voice coil, a vibration gap, a yoke, a first ventilation material and a second ventilation material.
其中，該振膜被該框架承載，且該框架及該振膜共構一內腔，該內腔包含一第一內腔以及一第二內腔。 The diaphragm is supported by the frame, and the frame and the diaphragm together form an inner cavity, which includes a first inner cavity and a second inner cavity.
該音圈與該振膜連接，而該震動間隙則設於該框架上，該震動間隙容納該音圈。該軛鐵設置於該第一內腔中的該框架上。 The voice coil is connected to the diaphragm, and the vibration gap is arranged on the frame, and the vibration gap accommodates the voice coil. The yoke is arranged on the frame in the first inner cavity.
接著，該第一通氣材料覆蓋該第二內腔中該框架的側壁及底面。而該第二通氣材料覆蓋於該軛鐵上。據此，本發明一種低頻感度提升的揚聲器得以改變聲波在振膜後方傳播特性，進而增加振膜振動幅度，達到提高低頻感度的效果。 Then, the first ventilation material covers the side wall and bottom surface of the frame in the second inner cavity. And the second ventilation material covers the yoke. Accordingly, the speaker with enhanced low-frequency sensitivity of the present invention can change the propagation characteristics of sound waves behind the diaphragm, thereby increasing the vibration amplitude of the diaphragm, thereby achieving the effect of improving low-frequency sensitivity.
10:一種低頻感度提升的揚聲器 10: A speaker with enhanced low-frequency sensitivity
100:框架 100:Framework
101:震動間隙 101: Vibration gap
200:振膜 200: Diaphragm
300:音圈 300: Voice coil
400:軛鐵 400: yoke
500:第一通氣材料 500: First ventilation material
500a:第一通氣材料 500a: first ventilation material
500b:第一通氣材料 500b: First ventilation material
600:第二通氣材料 600: Second ventilation material
C:內腔 C: Inner cavity
C1:第一內腔 C1: First inner cavity
C2:第二內腔 C2: Second inner cavity
圖1係本發明實施例一種低頻感度提升的揚聲器示意圖。 Figure 1 is a schematic diagram of a speaker with enhanced low-frequency sensitivity according to an embodiment of the present invention.
為能瞭解本發明的技術特徵及實用功效，並可依照說明書的內容來實施，茲進一步以如圖式所示的較佳實施例，詳細說明如後： 首先請參照圖1，圖1係本發明實施例一種低頻感度提升的揚聲器之結構示意圖。如圖1所示，本實施例之一種低頻感度提升的揚聲器10主要由框架100、振膜200、音圈300、震動間隙101、軛鐵400、第一通氣材料500以及一第二通氣材料600組成。 In order to understand the technical features and practical effects of the present invention and implement it according to the contents of the manual, the preferred embodiment shown in the figure is further described in detail as follows: First, please refer to Figure 1, which is a structural schematic diagram of a speaker with improved low-frequency sensitivity in an embodiment of the present invention. As shown in Figure 1, a speaker 10 with improved low-frequency sensitivity in this embodiment is mainly composed of a frame 100, a diaphragm 200, a voice coil 300, a vibration gap 101, a yoke 400, a first ventilation material 500 and a second ventilation material 600.
其中，本實施例之振膜200被框架100承載。在本實施例中，振膜200可以透過任何包含黏著、貼合或是機構設計卡合等方式固定在框架100的內周邊緣上，本發明並不加以限制。而本實施例之振膜200的材料為高分子材料、纖維材料或其組合，例如碳纖維、玻璃纖維、紙類或是其他如聚氯乙烯(Polyvinyl Chloride,PVC)或聚丙烯(Polypropylene,PP)等高分子、或如絲織物等有機材料均可，本發明並不加以限制。 The diaphragm 200 of this embodiment is supported by the frame 100. In this embodiment, the diaphragm 200 can be fixed to the inner peripheral edge of the frame 100 by any method including adhesion, bonding or mechanical design engagement, and the present invention is not limited thereto. The material of the diaphragm 200 of this embodiment is a polymer material, a fiber material or a combination thereof, such as carbon fiber, glass fiber, paper or other polymers such as polyvinyl chloride (PVC) or polypropylene (PP), or organic materials such as silk fabrics, and the present invention is not limited thereto.
因本實施例之振膜200係為中心圓形鼓起狀配合外部環狀鼓起的薄片結構之故，框架100及振膜200得以共構內腔C。其中，因振膜200和框架100的形狀相互配合，本實施例之內腔C包含第一內腔C1以及第二內腔C2。基本上來說，本實施例之第一內腔C1係一圓頂空腔結構；而第二內腔C2係環形圓頂空腔結構。 Because the diaphragm 200 of this embodiment is a thin sheet structure with a central circular bulge and an outer annular bulge, the frame 100 and the diaphragm 200 can jointly construct the inner cavity C. Among them, because the shapes of the diaphragm 200 and the frame 100 match each other, the inner cavity C of this embodiment includes a first inner cavity C1 and a second inner cavity C2. Basically, the first inner cavity C1 of this embodiment is a dome cavity structure; and the second inner cavity C2 is an annular dome cavity structure.
進一步地，本實施例之音圈300與振膜200連接。在本實施例中，音圈300的形狀可以依照振膜200中心鼓起結構的周緣形狀來決定。具體來說，音圈300可以是圓形環狀或橢圓形環狀結構，本發明並不加以限制。除此之外，震動間隙101同時設於框架100上。在本實施例中，震動間隙101係用以容納音圈300。由於音圈300係帶動振膜200振動的來源，因此震動間隙101的形狀需要配合音圈300的形狀設計之。 Furthermore, the voice coil 300 of this embodiment is connected to the diaphragm 200. In this embodiment, the shape of the voice coil 300 can be determined according to the peripheral shape of the central bulge structure of the diaphragm 200. Specifically, the voice coil 300 can be a circular ring or an elliptical ring structure, and the present invention is not limited thereto. In addition, the vibration gap 101 is also provided on the frame 100. In this embodiment, the vibration gap 101 is used to accommodate the voice coil 300. Since the voice coil 300 is the source of the vibration of the diaphragm 200, the shape of the vibration gap 101 needs to be designed in accordance with the shape of the voice coil 300.
最後，軛鐵400設置於第一內腔C1中的框架100上。具體來說，本實施例之軛鐵400可以是中空圓環板狀或是圓形板狀結構，端視微型揚聲器是否需要通氣孔結構決定之。而本實施例第一通氣材料500覆蓋 第二內腔C2中框架100的側壁及底面。在本實施例中，第一通氣材料500為纖維材料。更進一步來說，作為第一通氣材料500的纖維材料可以是網布、不織布或其組合。所述網布與不織布之材質可以是尼龍複合材料、天然棉、蠶絲等。進一地，所述網布與不織布之材質亦可以由金屬編織材料構成，例如鋁(Al)。 Finally, the yoke 400 is arranged on the frame 100 in the first inner cavity C1. Specifically, the yoke 400 of this embodiment can be a hollow ring plate or a circular plate structure, depending on whether the micro speaker needs a vent structure. The first ventilation material 500 of this embodiment covers the side wall and bottom surface of the frame 100 in the second inner cavity C2. In this embodiment, the first ventilation material 500 is a fiber material. Further, the fiber material used as the first ventilation material 500 can be a mesh, a non-woven fabric or a combination thereof. The material of the mesh and the non-woven fabric can be a nylon composite material, natural cotton, silk, etc. Furthermore, the mesh and non-woven fabric may also be made of metal woven materials, such as aluminum (Al).
而本實施例之第二通氣材料600則覆蓋於軛鐵400上。具體來說，本實施例中第二通氣材料600同為纖維材料；該纖維材料可以是網布、不織布或其組合。與第一通氣材料500相同地，所述網布與不織布之材質可以是尼龍複合材料、天然棉、蠶絲等。進一地，所述網布與不織布之材質亦可以由金屬編織材料構成，例如鋁(Al)。 The second ventilation material 600 of this embodiment is covered on the yoke 400. Specifically, the second ventilation material 600 of this embodiment is also a fiber material; the fiber material can be a mesh, a non-woven fabric or a combination thereof. Similar to the first ventilation material 500, the material of the mesh and the non-woven fabric can be a nylon composite material, natural cotton, silk, etc. Furthermore, the material of the mesh and the non-woven fabric can also be made of a metal woven material, such as aluminum (Al).
本實施例無論是第一通氣材料500或第二通氣材料600，均可以透過黏膠或是鍍膜等方式進行各個結構的貼附設置，本發明並不加以限制。 In this embodiment, whether it is the first ventilation material 500 or the second ventilation material 600, each structure can be attached and set by means of adhesive or coating, and the present invention is not limited to this.
在本實施例中，第二通氣材料600的厚度係大於第一通氣材料500的厚度設計。更進一步來說，第二通氣材料600的厚度同時大於貼附於框架100底部和側壁的第一通氣材料500a及第一通氣材料500b的厚度。除此之外，假若是比對第一通氣材料500a及第一通氣材料500b的厚度，則設置於框架100側壁的第一通氣材料500b厚度大於設置於框架100底面的第一通氣材料厚度500a。 In this embodiment, the thickness of the second ventilation material 600 is designed to be greater than the thickness of the first ventilation material 500. More specifically, the thickness of the second ventilation material 600 is greater than the thickness of the first ventilation material 500a and the first ventilation material 500b attached to the bottom and side walls of the frame 100. In addition, if the thickness of the first ventilation material 500a and the first ventilation material 500b are compared, the thickness of the first ventilation material 500b disposed on the side wall of the frame 100 is greater than the thickness of the first ventilation material 500a disposed on the bottom surface of the frame 100.
具體而言，本實施例第一通氣材料500的厚度可以被設計介於52~56微米(μm)之間。而第二通氣材料600的厚度介於56~60微米(μm)之間。其中，第一通氣材料500a的厚度以56微米(μm)最佳；第二通氣材料500b的厚度以54微米(μm)最佳。最後，第二通氣材料600的厚度 以60微米(μm)最佳。藉由所述一種低頻感度提升的揚聲器10的設計，可以以低成本且簡單結構的方式提升揚聲器的低頻感度。 Specifically, the thickness of the first ventilation material 500 of this embodiment can be designed to be between 52 and 56 micrometers (μm). The thickness of the second ventilation material 600 is between 56 and 60 micrometers (μm). Among them, the thickness of the first ventilation material 500a is preferably 56 micrometers (μm); the thickness of the second ventilation material 500b is preferably 54 micrometers (μm). Finally, the thickness of the second ventilation material 600 is preferably 60 micrometers (μm). By the design of the speaker 10 with improved low-frequency sensitivity, the low-frequency sensitivity of the speaker can be improved in a low-cost and simple structure.
惟以上所述者，僅為本發明之較佳實施例而已，當不能以此限定本發明實施之範圍，即依本發明申請專利範圍及說明內容所作之簡單的等效變化與修飾，皆仍屬本發明涵蓋之範圍內。 However, the above is only a preferred embodiment of the present invention, and it cannot be used to limit the scope of implementation of the present invention. That is, simple equivalent changes and modifications made according to the scope of the patent application and the description of the present invention are still within the scope of the present invention.
10:一種低頻感度提升的揚聲器 10: A speaker with enhanced low-frequency sensitivity
100:框架 100:Framework
101:震動間隙 101: Vibration gap
200:振膜 200: Diaphragm
300:音圈 300: Voice coil
400:軛鐵 400: yoke
500:第一通氣材料 500: First ventilation material
500a:第一通氣材料 500a: first ventilation material
500b:第一通氣材料 500b: First ventilation material
600:第二通氣材料 600: Second ventilation material
C:內腔 C: Inner cavity
C1:第一內腔 C1: First inner cavity
C2:第二內腔 C2: Second inner cavity
Claims (7)
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| TW111139634A TWI856396B (en) | 2022-10-19 | 2022-10-19 | Speaker structure for increasing low-frequency sensitivity |
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| TW111139634A TWI856396B (en) | 2022-10-19 | 2022-10-19 | Speaker structure for increasing low-frequency sensitivity |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130148834A1 (en) * | 2011-12-13 | 2013-06-13 | Bujeon Co., Ltd. | Microspeaker with inner resonance chamber |
| CN205830000U (en) * | 2016-07-25 | 2016-12-21 | 广东欧珀移动通信有限公司 | Loudspeaker stands, loudspeakers and enclosures |
| CN107396263A (en) * | 2017-08-21 | 2017-11-24 | 瑞声科技(新加坡)有限公司 | Loudspeaker |
| CN113573215A (en) * | 2020-04-29 | 2021-10-29 | 华为技术有限公司 | A loudspeaker diaphragm, loudspeaker and audio equipment |
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- 2022-10-19 TW TW111139634A patent/TWI856396B/en active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130148834A1 (en) * | 2011-12-13 | 2013-06-13 | Bujeon Co., Ltd. | Microspeaker with inner resonance chamber |
| CN205830000U (en) * | 2016-07-25 | 2016-12-21 | 广东欧珀移动通信有限公司 | Loudspeaker stands, loudspeakers and enclosures |
| CN107396263A (en) * | 2017-08-21 | 2017-11-24 | 瑞声科技(新加坡)有限公司 | Loudspeaker |
| CN113573215A (en) * | 2020-04-29 | 2021-10-29 | 华为技术有限公司 | A loudspeaker diaphragm, loudspeaker and audio equipment |
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| TW202418837A (en) | 2024-05-01 |
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