WO2008092330A1 - A loudspeaker diaphragm having a flat front surface and a protruding back portion - Google Patents

A loudspeaker diaphragm having a flat front surface and a protruding back portion Download PDF

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Publication number
WO2008092330A1
WO2008092330A1 PCT/CN2007/003524 CN2007003524W WO2008092330A1 WO 2008092330 A1 WO2008092330 A1 WO 2008092330A1 CN 2007003524 W CN2007003524 W CN 2007003524W WO 2008092330 A1 WO2008092330 A1 WO 2008092330A1
Authority
WO
WIPO (PCT)
Prior art keywords
diaphragm
speaker
back surface
front surface
back portion
Prior art date
Application number
PCT/CN2007/003524
Other languages
French (fr)
Chinese (zh)
Inventor
Gengsheng Wu
Yaoliang Zhou
Original Assignee
Shenzhen Languang Import & Export Co., Ltd
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 Shenzhen Languang Import & Export Co., Ltd filed Critical Shenzhen Languang Import & Export Co., Ltd
Publication of WO2008092330A1 publication Critical patent/WO2008092330A1/en

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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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones

Definitions

  • the invention relates to a loudspeaker diaphragm.
  • the existing speaker requires the speaker to vibrate and vocalize, and puts higher requirements on various components of the speaker.
  • Conventional speakers use concave cone diaphragms made of paper or other thin materials. Generally, the diaphragm is required to have light and good stiffness in frequency response. Due to the limitation of materials, the rigidity will increase the weight and reduce the weight. It is bound to affect the rigidity of the diaphragm and increase the generation of the split vibration.
  • a flat-faced thin plate is generally used as the diaphragm. The diaphragm of this structure is more likely to generate harmful split vibration, and the sound quality becomes worse.
  • An object of the present invention is to provide a speaker diaphragm having a desired rigidity and at the same time having a lighter weight and having a flat front surface protruding from the above-mentioned problems.
  • the diaphragm of the present invention has a solid body structure in which the front surface is flattened on the back surface, and a voice coil connecting hole is provided on the back surface.
  • the invention can be made of polyethylene foamed plastic which is light and hard to minimize the weight of the diaphragm.
  • the technical effect of the present invention is that the back surface of the diaphragm of the present invention is protruded, and the overall rigidity of the diaphragm is enhanced by a structure similar to triangulation, which effectively reduces the generation of the split vibration and improves the sound quality of the speaker.
  • FIG. 1 is a schematic structural view of a speaker to which a diaphragm of the present invention is applied. detailed description
  • the diaphragm of the present embodiment is a solid body made of polyethylene foamed plastic, the front surface 2 of which is flat, the back surface 1 of which protrudes rearwardly in the shape of a cone, and the voice coil connection hole 3 is provided in the center of the back surface 1. .
  • the diaphragm of the present embodiment is bonded to the folding ring 5 at the periphery 4, and the voice coil connecting hole 3 is bonded to the driving voice coil 6, thereby replacing the existing concave pyramid diaphragm with other components of the speaker and assembling into a flat plate shape. speaker.
  • the diaphragm of the present invention may have a shape such as a paraboloid or a trapezoidal shape.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

A loudspeaker diaphragm having a flat front surface (2) and a protruding back portion (1) is a solid configuration having a flat front surface (2) and a protruding back portion (1), and there is a voice coil connection hole (3) on the back portion (1). The diaphragm of the invention is provided with rigidity, the weight can be reduced to a lower degree, and the influence on the tone quality by the dividing vibration can be reduced.

Description

一种正面平整背面突出的扬声器振膜 技术领域  Speaker diaphragm with front flat surface and protruding back
本发明涉及一种扬声器振膜。  The invention relates to a loudspeaker diaphragm.
背景技术 现有扬声器为了获得高保真放音， 要求扬声器作活塞振动发声， 对扬声器的各个部件提出比较高的要求。传统的扬声器采用由纸或其 它薄形材料制成的凹面锥体振膜，通常在频率响应上要求振膜轻而又 具有良好的刚度， 由于受材料的限制提高刚度必会增加重量，减轻重 量又势必影响振膜的刚性而加大分割振动的产生，而在平板扬声器中 一般都采用双面平整的薄板做振膜，这种结构的振膜更容易产生有害 的分割振动， 使音质变得更差。 BACKGROUND OF THE INVENTION In order to obtain high fidelity playback, the existing speaker requires the speaker to vibrate and vocalize, and puts higher requirements on various components of the speaker. Conventional speakers use concave cone diaphragms made of paper or other thin materials. Generally, the diaphragm is required to have light and good stiffness in frequency response. Due to the limitation of materials, the rigidity will increase the weight and reduce the weight. It is bound to affect the rigidity of the diaphragm and increase the generation of the split vibration. In the flat panel speaker, a flat-faced thin plate is generally used as the diaphragm. The diaphragm of this structure is more likely to generate harmful split vibration, and the sound quality becomes worse.
发明内容 本发明的目的在于针对现有扬声器存在的上述问题， 提供一种 具理想的刚性， 同时重量较轻的正面平整背面突出的扬声器振膜。 Disclosure of the Invention An object of the present invention is to provide a speaker diaphragm having a desired rigidity and at the same time having a lighter weight and having a flat front surface protruding from the above-mentioned problems.
本发明的目的是这样实现的：本发明的振膜为正面平整背面突出 的实心体结构， 在背面设有音圈连接孔。  The object of the present invention is achieved in that the diaphragm of the present invention has a solid body structure in which the front surface is flattened on the back surface, and a voice coil connecting hole is provided on the back surface.
本发明可采用聚乙烯发泡塑料制成，该材料轻硬，可最大限度地 降低振膜的重量。  The invention can be made of polyethylene foamed plastic which is light and hard to minimize the weight of the diaphragm.
本发明的技术效果在于： 本发明的振膜背面突出， 以类似于三角 力学的结构形式加强了振膜的整体刚度，有效地减低了分割振动的产 生， 提升了扬声器的音质。  The technical effect of the present invention is that the back surface of the diaphragm of the present invention is protruded, and the overall rigidity of the diaphragm is enhanced by a structure similar to triangulation, which effectively reduces the generation of the split vibration and improves the sound quality of the speaker.
附图说明 图 1是应用了本发明振膜的扬声器的结构示意图。 具体实施方式 BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a schematic structural view of a speaker to which a diaphragm of the present invention is applied. detailed description
参见图 1， 本实施例的振膜是由聚乙烯发泡塑料制成的实心体， 其正面 2平整，其背面 1向后突出呈锥体形，在背面 1的中央设有音 圈连接孔 3。 本实施例的振膜在周边 4与折环 5相粘接， 其音圈连接 孔 3与驱动音圈 6粘接，从而取代现有的凹面锥体振膜与扬声器的其 它部件组装成平板形扬声器。  Referring to Fig. 1, the diaphragm of the present embodiment is a solid body made of polyethylene foamed plastic, the front surface 2 of which is flat, the back surface 1 of which protrudes rearwardly in the shape of a cone, and the voice coil connection hole 3 is provided in the center of the back surface 1. . The diaphragm of the present embodiment is bonded to the folding ring 5 at the periphery 4, and the voice coil connecting hole 3 is bonded to the driving voice coil 6, thereby replacing the existing concave pyramid diaphragm with other components of the speaker and assembling into a flat plate shape. speaker.
本发明的振膜其背面突出还可呈拋物面形或梯形体形等形状。  The diaphragm of the present invention may have a shape such as a paraboloid or a trapezoidal shape.

Claims

1. 一种正面平整背面突出的扬声器振膜， 其特征在于： 为正面 平整背面突出的实心体结构， 在背面设有音圈连接孔。 1. A speaker diaphragm with a front surface flattened on the back surface, characterized in that: a solid body structure having a front surface that is flat on the back surface and a voice coil connection hole on the back surface.
2. 根据权利要求 1所述的正面平整背面突出的扬声器振膜， 其 权 2. The speaker film of the front side of the front side of the speaker according to claim 1, the right
特征在于： 振膜的背面突出呈锥体形。 The feature is that: the back surface of the diaphragm protrudes in a cone shape.
3. 根据权利要求 1所述的正面平整背面突出的扬声器振膜， 其 特征在于： 振膜的背面突出呈抛物面形。 3. The front side flattened rear side protruding speaker diaphragm according to claim 1, wherein the back surface of the diaphragm protrudes in a paraboloidal shape.
4. 根据权利要求 1所述的正面平整背面突出的扬声器振膜， 其 特征在于： 振膜的背面突出呈梯形体形。 求 4. The speaker diaphragm according to claim 1, wherein the back surface of the diaphragm protrudes in a trapezoidal shape. begging
5.根据权利要求 1至 4任一权利要求所述的正面平整背面突出 的扬声器振膜， 其特征在于： 由聚乙烯发泡塑料制成。 The front side flat back protruding speaker diaphragm according to any one of claims 1 to 4, characterized in that it is made of polyethylene foamed plastic.
PCT/CN2007/003524 2007-01-29 2007-12-11 A loudspeaker diaphragm having a flat front surface and a protruding back portion WO2008092330A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNU2007200036846U CN201078859Y (en) 2007-01-29 2007-01-29 Plane entity diaphragm with front face flattening and back face projecting
CN200720003684.6 2007-01-29

Publications (1)

Publication Number Publication Date
WO2008092330A1 true WO2008092330A1 (en) 2008-08-07

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ID=39570924

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/003524 WO2008092330A1 (en) 2007-01-29 2007-12-11 A loudspeaker diaphragm having a flat front surface and a protruding back portion

Country Status (2)

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WO (1) WO2008092330A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4275278A (en) * 1978-08-18 1981-06-23 Sony Corporation Diaphragm for a loudspeaker
JPS5815399A (en) * 1981-07-22 1983-01-28 Matsushita Electric Ind Co Ltd Dyamic speaker
JPS6012897A (en) * 1983-07-04 1985-01-23 Pioneer Electronic Corp Speaker unit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4275278A (en) * 1978-08-18 1981-06-23 Sony Corporation Diaphragm for a loudspeaker
JPS5815399A (en) * 1981-07-22 1983-01-28 Matsushita Electric Ind Co Ltd Dyamic speaker
JPS6012897A (en) * 1983-07-04 1985-01-23 Pioneer Electronic Corp Speaker unit

Also Published As

Publication number Publication date
CN201078859Y (en) 2008-06-25

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