WO2014146420A1 - Diaphragme de vibrations utilisé pour un haut-parleur - Google Patents

Diaphragme de vibrations utilisé pour un haut-parleur Download PDF

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Publication number
WO2014146420A1
WO2014146420A1 PCT/CN2013/084788 CN2013084788W WO2014146420A1 WO 2014146420 A1 WO2014146420 A1 WO 2014146420A1 CN 2013084788 W CN2013084788 W CN 2013084788W WO 2014146420 A1 WO2014146420 A1 WO 2014146420A1
Authority
WO
WIPO (PCT)
Prior art keywords
protrusion
film body
projections
vibrating membrane
diaphragm
Prior art date
Application number
PCT/CN2013/084788
Other languages
English (en)
Chinese (zh)
Inventor
高鹏
柴国强
周建明
Original Assignee
苏州上声电子有限公司
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
Priority claimed from CN2013100893914A external-priority patent/CN103220604A/zh
Application filed by 苏州上声电子有限公司 filed Critical 苏州上声电子有限公司
Publication of WO2014146420A1 publication Critical patent/WO2014146420A1/fr

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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2207/00—Details of diaphragms or cones for electromechanical transducers or their suspension covered by H04R7/00 but not provided for in H04R7/00 or in H04R2307/00
    • H04R2207/021—Diaphragm extensions, not necessarily integrally formed, e.g. skirts, rims, flanges

Definitions

  • This invention relates to loudspeakers, and more particularly to vibrating membranes for loudspeakers.
  • the speaker belongs to an electroacoustic transducing device.
  • the electric energy causes the diaphragm to vibrate through the electromagnetic effect, and the vibrating diaphragm resonates with the surrounding air to emit sound, and the shape of the diaphragm will affect the sound effect.
  • the vibrating diaphragm on the existing speaker generally has a frustoconical shape.
  • the middle and high frequency bands on the frequency response curve such as the frequency band of 2000 Hz to 3000 Hz, may have spikes, which may easily lead to The appearance of harsh or hoarse sounds, the original sound is distorted, and the hearing effect is not good.
  • a first aspect of the present invention provides a vibrating membrane for a speaker comprising two end portions, a front and back film body between the two ends, wherein an inner diameter of one end portion is larger than The inner diameter of the other end.
  • the film body includes a body having a truncated cone shape and a circular cross section, and at least one first protrusion protruding toward the front surface of the film body with respect to the main body, the first protrusion being formed with at least one opposite to the first protrusion a second protrusion that protrudes toward the front surface of the film body.
  • first protrusions there are a plurality of first protrusions, and the plurality of first protrusions are spaced apart along the circumferential direction of the body.
  • the first protrusions are formed in pairs, each pair of first protrusions being symmetrically distributed with respect to a central axis of the film body, and two sets of second protrusions respectively formed on each pair of first protrusions with respect to the film body
  • the central axis is symmetrically distributed.
  • the first projection is integrally formed with the body.
  • the second protrusion and the first protrusion are also of a one-piece construction.
  • the first projection extends in a ring shape along the circumference of the body.
  • the second projection also extends along the circumference of the body.
  • the second projection is in the shape of a dot.
  • a second aspect of the present invention provides a vibrating membrane for a speaker comprising two end portions, a front and back film body between the two ends, wherein an inner diameter of one end portion is larger than the other end portion the inside diameter of.
  • the film body includes a body having a truncated cone shape and a circular cross section, and at least one first protrusion protruding toward the front surface of the film body with respect to the main body, the first protrusion being formed with at least one opposite to the first protrusion A first recess that is recessed toward the back of the film body.
  • the first protrusions are formed in pairs, each pair of first protrusions being symmetrically distributed with respect to a central axis of the film body, and two sets of first depressions respectively formed on each pair of first protrusions with respect to the center of the film body
  • the axes are symmetrically distributed.
  • the first protrusion is integrally formed with the body.
  • the first projection extends in a ring shape along the circumference of the body.
  • the first recess also extends along the circumference of the body.
  • the first recess is in the shape of a dot.
  • a vibrating membrane for a speaker comprising two end portions, a film body having a front surface and a back surface between the two ends, wherein an inner diameter of one end portion is larger than an inner diameter of the other end portion .
  • the film body includes a body having a truncated cone shape and a circular cross section, and at least one first protrusion protruding toward the front surface of the film body with respect to the main body, the first protrusion being formed with at least one opposite to the first protrusion a first recess recessed toward the back of the film body and at least one second protrusion projecting toward the front surface of the film body with respect to the first protrusion.
  • first protrusions there are a plurality of first protrusions, and the plurality of first protrusions are spaced apart along the circumferential direction of the body.
  • the first protrusions are formed in pairs, each pair of first protrusions being symmetrically distributed with respect to a central axis of the film body, and two sets of second protrusions respectively formed on each pair of first protrusions with respect to the film body
  • the central axes are symmetrically distributed, and the two sets of first depressions respectively formed on each pair of first protrusions are symmetrically distributed with respect to the central axis of the film body.
  • the first protrusion is integrally formed with the body.
  • the first protrusion and the first recess may also be in a one-piece configuration.
  • the first protrusion and the second protrusion are of a one-piece construction.
  • the first projection extends in a ring shape along the circumference of the body.
  • the first recess extends along the circumference of the body.
  • the second projection also extends along the circumference of the body.
  • the second protrusion is in the shape of a dot.
  • the second depression is punctiform.
  • the present invention has the following advantages over the prior art: the sound effect of the high frequency band in the speaker can be improved, and the original sound can be more accurately reflected.
  • Figure 1 is a plan view showing a vibrator diaphragm of a first embodiment of the present invention.
  • Figure 2 is a cross-sectional view taken along line A-A of Figure 1.
  • Figure 3 is a plan view of a vibrator diaphragm of a second embodiment of the present invention.
  • Figure 4 is a cross-sectional view taken along line B-B of Figure 3;
  • Figure 5 is a plan view of a vibrator diaphragm of a third embodiment of the present invention.
  • Figure 6 is a cross-sectional view taken along line C-C of Figure 5 .
  • a vibrating membrane 1 for a loudspeaker has two ends and a membrane body 2 between the two ends, two The inner diameter of one end of the end is larger than the inner diameter of the other end.
  • the film body 2 comprises a closed annular body in cross section, and the body of the film body 2 has a truncated cone shape, and the film body 2 further has a first protrusion 3 protruding toward the front surface of the film body 2 with respect to the main body thereof, A projection 3 is formed with at least one second projection 4 projecting toward the front surface of the film body 2 with respect to the first projection 3.
  • the film body 2 is integrally formed, that is, the body of the film body 2 and the first protrusion 3 and the second protrusion 4 are integrally formed.
  • the "front” and “back” as used herein and elsewhere herein are defined according to the habit of observation.
  • the surface that can be seen after being mounted on the speaker is the front side, and vice versa, the back side, the following "inside” and
  • the “outer” is defined by the distance from the central axis of the film body 2, and actually, the front surface of the film body 2 is on the inner side, and the back surface of the film body 2 is on the outer side.
  • the first protrusions 3 are arranged in various ways.
  • the first protrusions 3 may extend in a ring shape along the circumferential direction of the film body 2, which is a continuous type configuration, or the first protrusions 3 It may also be intermittently distributed, that is to say, there are a plurality of first protrusions 3, and the plurality of first protrusions 3 are distributed along the circumferential direction of the film body 2 at a distance, in pairs first
  • the protrusion 3 is the preferred mode.
  • the first projections 3 have a pair, and the pair of first projections 3 are symmetrically distributed about the central axis of the film body 2.
  • the first projection 3 is curved, and the height of the first projection 3 is along from the outside to the inside.
  • the direction is gradually decreasing.
  • the first projections 3 can also be arranged in a shape such as a right angle.
  • the second protrusions 4 are arranged in various ways.
  • the second protrusions 4 may extend in an arc shape along the circumferential direction of the film body 2, or the plurality of second protrusions 4 may also be arranged in a dot shape.
  • the second projections 4 On the first protrusion 3.
  • the second projections 4 have a pair, and the pair of second projections 4 are symmetrically distributed about the central axis of the film body 2.
  • a vibrating membrane 1 for a speaker has two end portions and a membrane body 2 between the two ends, a diaphragm
  • the entirety of 1 is generally truncated conical, with the inner diameter of one of the two ends being larger than the inner diameter of the other end.
  • the film body 2 includes a ring-shaped main body having a closed cross section, and the main body of the film body 2 has a truncated cone shape, and the film body 2 further has a first protrusion 3 protruding toward the front surface of the film body 2 with respect to the main body thereof, first The projection 3 is formed with at least one first recess 5 recessed toward the front surface of the film body 2 with respect to the main body, that is, the first recess 5 protrudes toward the back surface of the film body 2 with respect to the main body.
  • the film body 2 is integrally formed, that is, the body of the film body 2 and the first protrusion 3 and the first recess 5 are integrally formed.
  • the "front” and “back” as used herein and elsewhere herein are defined according to the habit of observation.
  • the surface that can be seen after being mounted on the speaker is the front side, and vice versa, the back side, the following "inside” and
  • the “outer” is defined by the distance from the central axis of the film body 2, and actually, the front surface of the film body 2 is on the inner side, and the back surface of the film body 2 is on the outer side.
  • the first protrusions 3 are arranged in various ways.
  • the first protrusions 3 may extend in a ring shape along the circumferential direction of the film body 2, which is a continuous type configuration, or the first protrusions 3 It may also be intermittently distributed, that is to say, there are a plurality of first protrusions 3, and the plurality of first protrusions 3 are distributed along the circumferential direction of the film body 2 at a distance, in pairs first
  • the protrusion 3 is the preferred mode.
  • the first projections 3 have a pair, and the pair of first projections 3 are symmetrically distributed about the central axis of the film body 2.
  • the first projection 3 is curved, and the height of the first projection 3 is along from the outside to the inside.
  • the direction is gradually decreasing.
  • the first projections 3 can also be arranged in a shape such as a right angle.
  • the first recess 5 is arranged in various manners.
  • the first recess 5 may have an arc shape extending along the circumferential direction of the film body 2, or the plurality of first recesses 5 may also be arranged in a dot shape at the first. Raised on the 3rd.
  • the first recess 5 has a pair, the pair of first recesses 5 being symmetrically distributed about the central axis of the film body 2.
  • a vibrating membrane 1 for a speaker has two end portions and a membrane body 2 between the two ends, a diaphragm
  • the entirety of 1 is generally truncated conical, with the inner diameter of one of the two ends being larger than the inner diameter of the other end.
  • the film body 2 includes a ring-shaped main body having a closed cross section, and the main body of the film body 2 has a truncated cone shape, and the film body 2 further has a first protrusion 3 protruding toward the front surface of the film body 2 with respect to the main body thereof, A protrusion 3 is formed with at least one second protrusion 4 protruding toward the front surface of the film body 2 with respect to the main body, and the first protrusion 3 is further formed with at least one surface facing the front side of the film body 2 with respect to the main body
  • the concave first recess 5, that is, the first recess 5 protrudes toward the back surface of the film body 2 with respect to the main body.
  • the first protrusions 3 are arranged in various ways.
  • the first protrusions 3 may extend in a ring shape along the circumferential direction of the film body 2, which is a continuous type configuration, or the first protrusions 3 It may also be intermittently distributed, that is to say, there are a plurality of first protrusions 3, and the plurality of first protrusions 3 are distributed along the circumferential direction of the film body 2 at a distance, in pairs first
  • the protrusion 3 is the preferred mode.
  • the first projections 3 have a pair, and the pair of first projections 3 are symmetrically distributed about the central axis of the film body 2.
  • the first projection 3 is curved, and the height of the first projection 3 is along from the outside to the inside.
  • the direction is gradually decreasing.
  • the first projections 3 can also be arranged in a shape such as a right angle.
  • the second protrusions 4 are arranged in various ways.
  • the second protrusions 4 may extend in an arc shape along the circumferential direction of the film body 2, or the plurality of second protrusions 4 may also be arranged in a dot shape.
  • the second projections 4 On the first protrusion 3.
  • the second projections 4 have a pair, and the pair of second projections 4 are symmetrically distributed about the central axis of the film body 2.
  • the first recess 5 is arranged in various manners.
  • the first recess 5 may have an arc shape extending along the circumferential direction of the film body 2, or the plurality of first recesses 5 may also be arranged in a dot shape at the first. Raised on the 3rd.
  • the first recess 5 has a pair, the pair of first recesses 5 being symmetrically distributed about the central axis of the film body 2.
  • the first recess 5 is located at the upper portion of the second projection 4.
  • the above diaphragms can be applied to the speaker.
  • the speaker body includes a frame, and the diaphragm is mounted on the frame, and the elastic side is used to connect the diaphragm and the frame.
  • the central portion of the frame is recessed to form a resonant cavity, and the diaphragm is located in the resonant cavity.
  • the frame is provided with a fixed magnetic circuit component, and the voice coil 8 can be driven by the fixed magnetic circuit component for axial movement.
  • the outer wall of the voice coil passes through the positioning elastic wave plate.
  • the inner wall of the inner end of the diaphragm having a smaller inner diameter is bonded to the outer wall of the voice coil, and the inner end portion of the vibrating diaphragm having the larger inner diameter is bonded to the inner wall of the frame by the elastic edge.

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

Abstract

L'invention concerne un diaphragme (1) de vibrations. Un corps de diaphragme d'un diaphragme de vibrations comporte un corps principal (2) de forme tronconique, et le corps (2) de diaphragme comporte également au moins un premier renflement (3) dépassant jusqu'à la surface avant du corps (2) de diaphragme par rapport au corps principal, au moins un deuxième renflement (4) dépassant jusqu'à la surface avant du corps (2) de diaphragme par rapport au corps principal étant formé sur le premier renflement (3). L'invention concerne également un diaphragme de vibrations. Le corps (2) de diaphragme comporte un corps principal de forme tronconique, et le corps (2) de diaphragme comporte également au moins un premier renflement (3) dépassant jusqu'à la surface avant du corps (2) de diaphragme par rapport au corps principal, au moins une première cuvette (5) s'abaissant jusqu'à la surface avant du corps (2) de diaphragme par rapport au corps principal étant formée sur le premier renflement (3). L'invention concerne en outre un diaphragme de vibrations. Le corps (2) de diaphragme comporte un corps principal de forme tronconique, et le corps (2) de diaphragme comporte également au moins un premier renflement (3) dépassant jusqu'à la surface avant du corps de diaphragme par rapport au corps principal, au moins une première cuvette (5) s'abaissant jusqu'à la surface avant du corps (2) de diaphragme par rapport au corps principal et au moins un deuxième renflement (4) dépassant jusqu'à la surface avant du corps (2) de diaphragme par rapport au corps principal étant formés sur le premier renflement (3).
PCT/CN2013/084788 2013-03-20 2013-09-30 Diaphragme de vibrations utilisé pour un haut-parleur WO2014146420A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310089391.4 2013-03-20
CN2013100893914A CN103220604A (zh) 2012-08-30 2013-03-20 用于扬声器的振动膜片及扬声器

Publications (1)

Publication Number Publication Date
WO2014146420A1 true WO2014146420A1 (fr) 2014-09-25

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Application Number Title Priority Date Filing Date
PCT/CN2013/084788 WO2014146420A1 (fr) 2013-03-20 2013-09-30 Diaphragme de vibrations utilisé pour un haut-parleur

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1302522A (zh) * 1999-04-22 2001-07-04 株式会社建伍 扬声器振动膜片
JP2007043522A (ja) * 2005-08-04 2007-02-15 Pioneer Electronic Corp スピーカー装置用振動板
US20080159583A1 (en) * 2006-12-28 2008-07-03 Matsushita Electric Industrial Co., Ltd. Speaker
US20100135520A1 (en) * 2006-12-27 2010-06-03 Pioneer Corporation Diaphragm and speaker device
CN101946525A (zh) * 2008-02-25 2011-01-12 日本先锋公司 音频转换器用振动体及扬声器装置
CN103220604A (zh) * 2012-08-30 2013-07-24 苏州上声电子有限公司 用于扬声器的振动膜片及扬声器

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1302522A (zh) * 1999-04-22 2001-07-04 株式会社建伍 扬声器振动膜片
JP2007043522A (ja) * 2005-08-04 2007-02-15 Pioneer Electronic Corp スピーカー装置用振動板
US20100135520A1 (en) * 2006-12-27 2010-06-03 Pioneer Corporation Diaphragm and speaker device
US20080159583A1 (en) * 2006-12-28 2008-07-03 Matsushita Electric Industrial Co., Ltd. Speaker
CN101946525A (zh) * 2008-02-25 2011-01-12 日本先锋公司 音频转换器用振动体及扬声器装置
CN103220604A (zh) * 2012-08-30 2013-07-24 苏州上声电子有限公司 用于扬声器的振动膜片及扬声器
CN203167258U (zh) * 2012-08-30 2013-08-28 苏州上声电子有限公司 用于扬声器的振动膜片及扬声器

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