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WO2018006535A1 - Élément rayonnant passif et haut-parleur - Google Patents

Élément rayonnant passif et haut-parleur Download PDF

Info

Publication number
WO2018006535A1
WO2018006535A1 PCT/CN2016/106893 CN2016106893W WO2018006535A1 WO 2018006535 A1 WO2018006535 A1 WO 2018006535A1 CN 2016106893 W CN2016106893 W CN 2016106893W WO 2018006535 A1 WO2018006535 A1 WO 2018006535A1
Authority
WO
WIPO (PCT)
Prior art keywords
ring
diaphragm
folding ring
passive radiator
folding
Prior art date
Application number
PCT/CN2016/106893
Other languages
English (en)
Chinese (zh)
Inventor
张文东
Original Assignee
北京爱德发科技有限公司
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
Application filed by 北京爱德发科技有限公司 filed Critical 北京爱德发科技有限公司
Publication of WO2018006535A1 publication Critical patent/WO2018006535A1/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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • 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
    • H04R7/14—Non-planar diaphragms or cones corrugated, pleated or ribbed
    • 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 present invention relates to the field of speaker technologies, and in particular, to a passive radiator and a speaker.
  • PRs Passive Radiators
  • Passive radiators typically contain an active speaker unit and a passive unit (passive radiator).
  • the passive unit is usually similar in appearance to the active speaker unit, but without the voice coil and drive magnet. It has only one paper cone and is not connected to any voice coil or circuit. Passive radiators are often used to adjust the bass, allowing the designer to adjust the overall tone of the speaker.
  • the passive radiator emits passive sound under the driving of the air in the box by the active unit in the speaker.
  • the Edge not only supports and maintains the movement of the diaphragm, but also allows the diaphragm to vibrate freely in the axial direction but not laterally.
  • the folding ring There are many shapes of the folding ring, and currently commonly used are corrugated folding rings and semi-annular folding rings.
  • the corrugated folding ring is in the form of a plurality of corrugations.
  • the expansion and contraction of the folding ring has a certain limit, and the displacement in the circumferential direction is limited in amplitude, and thus the linearity is not good.
  • the semi-annular folding ring can be divided into an upper convex folding ring and a lower concave folding ring according to the direction of the protruding portion.
  • the semi-annular folding ring allows for a larger amplitude than the wavy folding ring.
  • the width of the folded ring is increased, and thus the radius of curvature is also large, resulting in a decrease in the strength of the folded ring.
  • an embodiment of the present invention provides a passive radiator, including:
  • a diaphragm a bracket and at least one folding ring set
  • the diaphragm is disposed in a middle portion of the bracket, and the diaphragm is connected to the inner edge of the bracket through the folding ring group;
  • the folding ring set includes an outer folding ring on the outer layer and an inner folding ring on the inner layer;
  • the outer folding ring and the inner folding ring are inner and outer ring misalignment structures, and the outer folding ring and the inner folding ring are anterior and reversely raised with respect to a plane of the diaphragm.
  • the radius of the outer fold ring is greater than the radius of the inner fold ring.
  • the set of folds has a plurality of sets that surround the diaphragm.
  • the outer fold ring of the outer layer and the inner fold ring of the inner layer are plural and the number is the same.
  • the ridge direction of the adjacent outer fold ring or the adjacent inner fold ring is opposite with respect to the plane of the diaphragm.
  • adjacent ends of the outer folding ring and the inner folding ring are separated by a preset distance in a vertical direction of the diaphragm.
  • the outer fold ring has a cross-sectional shape that is semi-circular or V-shaped or sinusoidal.
  • the cross-sectional shape of the inner folded ring is semicircular or V-shaped or sinusoidal.
  • the highest point of the forward ridge of the outer fold ring or the inner fold ring does not exceed the upper plane of the bracket.
  • the passive radiator is an integrally formed structure.
  • the embodiment of the invention provides a passive radiator, a speaker and a video and audio system
  • the passive radiator comprises: a diaphragm, a bracket and at least one folding ring set; the diaphragm is arranged in the middle of the bracket, and the diaphragm passes through the folding ring group Connected to the inner edge of the bracket; the folding ring set includes an outer folding ring on the outer layer and an inner folding ring on the inner layer, and the outer folding ring and the inner folding ring are forward and reversely raised with respect to the plane of the diaphragm, and the outer folding ring The radius is greater than the radius of the inner fold.
  • the outer fold ring and the inner fold ring are forward and reverse with respect to the plane of the diaphragm by the outer fold ring located at the outer layer and the inner fold ring located at the inner layer, and the outer fold ring has a larger radius than the inner fold ring.
  • the radius is such that when the paper film of the sounding unit vibrates, the outer folding ring and the inner folding ring are forward and reverse ridge structures with respect to the plane of the diaphragm, and the radius of the outer folding ring is larger than the radius of the inner folding ring, so that the radius of the outer folding ring is larger than the radius of the inner folding ring.
  • the corresponding phase movement of the diaphragm not only ensures the high strength of the folding ring, but also greatly enhances the superposition of the sound and improves the linear vibration capability, and solves the problem that the current semi-annular folding ring is guaranteed at a large amplitude.
  • Linearity because the width of the folding ring is increased, the radius of curvature is also large, resulting in a technical problem of the strength of the folding ring being lowered.
  • the diaphragm is more linear when vibrating.
  • FIG. 1 is a schematic cross-sectional structural view of a passive radiator according to an embodiment of the present invention
  • FIG. 2 is a schematic perspective view of a passive radiator
  • Figure 3 is a front view of the passive radiator
  • the illustration shows: diaphragm 1, bracket 2, folding ring set 3, outer folding ring 31, inner folding ring 32, first outer folding ring 311, second outer folding ring 312, first inner folding ring 321, and second inner ring Folding ring 322.
  • the passive radiator and the speaker provided by the embodiment of the invention solve the problem that the current semi-circular symmetric folding ring has a one-half ring shape, causing the diaphragm to vibrate, and the semi-annular resonance can improve the resonance due to the symmetry, but
  • the technical problem that the effect of resonance is not linear enough, and the vibration of the corrugated ring structure diaphragm itself, due to its twisted force structure, leads to low resonance technology. Problems.
  • an embodiment of a passive radiator provided by an embodiment of the present invention includes:
  • the diaphragm 1 is disposed in the middle of the bracket 2, and the diaphragm is connected to the inner edge of the bracket 2 through the folding ring group;
  • the ring set 3 includes an outer fold ring 31 on the outer layer and an inner fold ring 32 on the inner layer;
  • the outer folding ring 31 and the inner folding ring 32 are anterior and reversely raised with respect to the plane of the diaphragm 1, and may be a forward ridge of the outer folding ring, a reverse bulge of the inner folding ring, or an outer folding.
  • the ring is reversed and the inner fold is raised forward.
  • the outer folded ring 31 and the inner folded ring 32 greatly increase the elasticity of the diaphragm 20, so that the diaphragm 20 can vibrate more frequently and with higher efficiency, and the bass effect of the sound can be improved to a large extent.
  • the radius of the outer folded ring 31 is larger than that of the inner folded ring 32.
  • the radius is such that the elasticity of the outer folded ring 31 is greater than the elasticity of the inner folded ring 32, so that the shape variables of the outer folded ring 31 and the inner folded ring 32 tend to coincide to ensure linearity at a large amplitude, so that the sound is not distorted.
  • the radius of the outer folded ring 31 is greater than the radius of the inner folded ring 32 is 0.5 mm, for example, the outer folded ring 31 has a radius of 2.1 mm, and the inner folded ring 32 has a radius of 1.6 mm.
  • the radius of the outer folded ring 31 and the radius of the inner folded ring 32 can be understood with reference to FIG. 1.
  • the radius is the radius of the semicircle of the cross section. When the cross section is the other V rows and sinusoidal shapes described below, the radius is the radial dimension.
  • the outer folded ring 31 includes an adjacent first outer folded ring 311 and a second outer folded ring 312.
  • the inner folded ring 32 includes an adjacent first inner folded ring 321 and a second inner folded ring 322 adjacent to each other.
  • the ridge direction of the first outer folding ring 311, the second outer folding ring 312 or the adjacent first inner folding ring 321 and the second inner folding ring 322 is opposite to the plane of the diaphragm, as shown in FIGS.
  • First outer folding ring 311 and The inner folding ring 321 is a folding ring set
  • the second outer folding ring 312 and the second inner folding ring 322 are another folding ring group
  • the two folding ring groups are X-shaped from a plan view, wherein the first outer folding The ring 311 and the first inner folded ring 321 or the second outer folded ring 312 and the second inner folded ring 322 are swelled in forward and reverse directions, that is, the first outer folded ring 311 is swelled in the positive direction, and the first inner folded ring is The 321 is raised in the opposite direction.
  • the second outer folded ring 312 and the second inner folded ring 322 are also the same.
  • the folding ring group in which the unevenness is staggered can ensure the balance of the vibration of the diaphragm and the sound is not distorted. Therefore, the passive radiator of the embodiment improves the bass effect without distorting the sound.
  • one folding ring group is an outer folding ring 31 and an inner folding ring 32 which are adjacent to each other with a cross-section of the S-shaped structure. form.
  • the outer folding ring 31 and the inner folding ring 32 in the above folding ring group are annular segments, and a plurality of outer folding rings 31 and inner folding rings 32 are alternately arranged in a concave shape.
  • the outer folding ring 31 and the inner folding ring 32 are annular integral members around the diaphragm. Non-alternating arrangements are also possible, as long as the bending directions of the outer and inner folding rings are positive and negative with respect to the plane of the diaphragm. Just bulge.
  • outer folded ring 31 of the outer layer and the inner folded ring 32 of the inner layer are plural and the number is uniform.
  • the adjacent ends of the outer folded ring 31 and the inner folded ring 32 are separated by a preset distance in the vertical direction of the diaphragm, and the preset distance is 0.4 mm, so that when the diaphragm 1 vibrates, the outer folded ring 31 and the inner fold Ring 32 can be a maximum amplitude resonance based on 0.4 mm.
  • cross-sectional shape of the outer folded ring 31 or the inner folded ring 32 is semicircular or V-shaped or sinusoidal.
  • the diaphragm 1 is rectangular or circularly rectangular or circular, and the diaphragm 1 is made of silica gel, rubber, silicone rubber, etc., which are well known to those skilled in the art and will not be described herein.
  • the highest point of the forward ridge of the outer folded ring 31 or the inner folded ring 32 does not exceed the upper plane of the bracket 2.
  • the diaphragm 1 is a hollow cavity body, which is a weight member in the cavity, and the weight member may be iron Blocks, steel blocks, etc., the thickness of the entire passive radiator is about 5mm.
  • the passive radiator in this embodiment is an integrally formed structure, and can be integrally formed by potting, thereby ensuring airtightness.
  • the embodiment of the invention further provides a speaker, comprising:
  • At least one passive radiator in the embodiment shown in Figures 1 to 3.
  • the passive radiator comprises: a diaphragm 1, a bracket 2 and at least one folding ring set 3; the diaphragm 1 is arranged in the middle of the bracket 2, and the vibration
  • the film is connected to the inner edge of the bracket 2 through the folding ring group;
  • the folding ring group 3 includes an outer folding ring 31 at the outer layer and an inner folding ring 32 at the inner layer, and the outer folding ring 31 and the inner folding ring 32 are opposite to the plane of the diaphragm 1
  • the radius of the outer folded ring 31 is greater than the radius of the inner folded ring 32.
  • the outer folded ring 31 and the inner folded ring 32 are forward and reversely raised with respect to the plane of the diaphragm 1 by the outer folded ring 31 located at the outer layer and the inner folded ring 32 located at the inner layer, and the outer folded ring 31 is extended.
  • the radius of the inner folding ring 32 is larger than the radius of the inner folding ring 32, so that when the paper film of the sounding unit vibrates, the outer folding ring and the inner folding ring are forward and reverse convex structures with respect to the plane of the vibration film, and the radius of the outer folding ring is larger than
  • the radius of the inner folding ring makes the diaphragm move in the same phase, which not only ensures the high strength of the folding ring, but also greatly enhances the superposition of sound and improves the linear vibration capability, and solves the current semi-annular folding ring. In order to ensure the linearity at a large amplitude, since the width of the folded ring is increased, the radius of curvature is also large, resulting in a technical problem that the strength of the folded ring is lowered.
  • the outer folded ring 31 and the inner folded ring 32 are diagonally connected, the outer folded ring 31 and the inner folded ring 32 are formed with respect to the plane of the diaphragm 1 in the forward and reverse directions.
  • the cross section is sinusoidal or V-shaped, and the diaphragm 1 is more linear when vibrating.

Landscapes

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

Abstract

Élément rayonnant passif et haut-parleur, comportant: une membrane (1), un cadre (2) et au moins un ensemble anneau pliant (3). La membrane (1) est placée dans une partie médiane du cadre (2), et est reliée à un bord intérieur du cadre (2) via l'ensemble anneau pliant (3). L'ensemble anneau pliant (3) comporte un anneau pliant extérieur (31) au niveau d'une couche extérieure, et un anneau pliant intérieur (32) au niveau d'une couche intérieure. L'anneau pliant extérieur (31) et l'anneau pliant intérieur (32) font saillie respectivement dans des directions opposées par rapport à un plan dans lequel est située la membrane (1). Le rayon de l'anneau pliant extérieur (31) est plus grand que celui de l'anneau pliant intérieur (32). L'élément rayonnant passif et le haut-parleur sont capables de maximiser la souplesse de la membrane (1) et d'accentuer les basses, et également de fournir un son sans distorsion tout en garantissant la linéarité sous une grande amplitude.
PCT/CN2016/106893 2016-07-06 2016-11-23 Élément rayonnant passif et haut-parleur WO2018006535A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610529882.X 2016-07-06
CN201610529882.XA CN105979431A (zh) 2016-07-06 2016-07-06 一种无源辐射器及扬声器

Publications (1)

Publication Number Publication Date
WO2018006535A1 true WO2018006535A1 (fr) 2018-01-11

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CN (1) CN105979431A (fr)
WO (1) WO2018006535A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108600925A (zh) * 2018-05-25 2018-09-28 东莞顺合丰电业有限公司 被动式辐射器及包括被动式辐射器的扬声器系统
TWI685261B (zh) * 2018-06-06 2020-02-11 富祐鴻科技股份有限公司 被動式輻射器及包含其之揚聲器系統
CN111131973A (zh) * 2020-01-14 2020-05-08 东莞达电电子有限公司 一种用于耳机的振膜结构
CN113852891A (zh) * 2021-10-19 2021-12-28 歌尔科技有限公司 被动辐射器和发声设备
US11297438B2 (en) 2018-10-19 2022-04-05 Sound Solutions International Co., Ltd. Electrodynamic acoustic transducer having a polygonal membrane with improved compliance

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105979431A (zh) * 2016-07-06 2016-09-28 北京爱德发科技有限公司 一种无源辐射器及扬声器
WO2019041507A1 (fr) * 2017-08-31 2019-03-07 歌尔股份有限公司 Diaphragme et unité de haut-parleur pour haut-parleur
CN107809712A (zh) * 2017-12-22 2018-03-16 奥音新材料（镇江）有限公司 一种稳定性好的扬声器振膜
CN109391886B (zh) * 2018-11-02 2024-04-02 深圳市三诺数字科技有限公司 一种无源辐射器

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CN1735283A (zh) * 2005-06-24 2006-02-15 吴琪君 在同一周边线有互成反向波纹的支承折环
CN202455528U (zh) * 2011-12-30 2012-09-26 瑞声声学科技(常州)有限公司 薄型扬声器
CN203708463U (zh) * 2013-11-26 2014-07-09 天津中环真美声学技术有限公司 超薄大功率扬声器
JP2014239383A (ja) * 2013-06-10 2014-12-18 ディービーテクノロジー株式会社 スピーカおよびそのエッジ構造
US9025809B1 (en) * 2014-01-03 2015-05-05 Rockford Corporation Voicecoil affixation
CN105721994A (zh) * 2016-04-22 2016-06-29 歌尔声学股份有限公司 微型扬声器
CN105979431A (zh) * 2016-07-06 2016-09-28 北京爱德发科技有限公司 一种无源辐射器及扬声器
CN205812348U (zh) * 2016-07-06 2016-12-14 北京爱德发科技有限公司 一种无源辐射器及扬声器

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1735283A (zh) * 2005-06-24 2006-02-15 吴琪君 在同一周边线有互成反向波纹的支承折环
CN202455528U (zh) * 2011-12-30 2012-09-26 瑞声声学科技(常州)有限公司 薄型扬声器
JP2014239383A (ja) * 2013-06-10 2014-12-18 ディービーテクノロジー株式会社 スピーカおよびそのエッジ構造
CN203708463U (zh) * 2013-11-26 2014-07-09 天津中环真美声学技术有限公司 超薄大功率扬声器
US9025809B1 (en) * 2014-01-03 2015-05-05 Rockford Corporation Voicecoil affixation
CN105721994A (zh) * 2016-04-22 2016-06-29 歌尔声学股份有限公司 微型扬声器
CN105979431A (zh) * 2016-07-06 2016-09-28 北京爱德发科技有限公司 一种无源辐射器及扬声器
CN205812348U (zh) * 2016-07-06 2016-12-14 北京爱德发科技有限公司 一种无源辐射器及扬声器

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108600925A (zh) * 2018-05-25 2018-09-28 东莞顺合丰电业有限公司 被动式辐射器及包括被动式辐射器的扬声器系统
TWI685261B (zh) * 2018-06-06 2020-02-11 富祐鴻科技股份有限公司 被動式輻射器及包含其之揚聲器系統
US11297438B2 (en) 2018-10-19 2022-04-05 Sound Solutions International Co., Ltd. Electrodynamic acoustic transducer having a polygonal membrane with improved compliance
CN111131973A (zh) * 2020-01-14 2020-05-08 东莞达电电子有限公司 一种用于耳机的振膜结构
CN113852891A (zh) * 2021-10-19 2021-12-28 歌尔科技有限公司 被动辐射器和发声设备
CN113852891B (zh) * 2021-10-19 2025-01-21 歌尔科技有限公司 被动辐射器和发声设备

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