WO2022006943A1 - Haut-parleur - Google Patents

Haut-parleur Download PDF

Info

Publication number
WO2022006943A1
WO2022006943A1 PCT/CN2020/102096 CN2020102096W WO2022006943A1 WO 2022006943 A1 WO2022006943 A1 WO 2022006943A1 CN 2020102096 W CN2020102096 W CN 2020102096W WO 2022006943 A1 WO2022006943 A1 WO 2022006943A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic
away
diaphragm
basin
connecting ring
Prior art date
Application number
PCT/CN2020/102096
Other languages
English (en)
Chinese (zh)
Inventor
肖波
令狐荣林
孔晨亮
章统
Original Assignee
瑞声声学科技(深圳)有限公司
瑞声科技(新加坡)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 瑞声声学科技(深圳)有限公司, 瑞声科技(新加坡)有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Publication of WO2022006943A1 publication Critical patent/WO2022006943A1/fr

Links

Classifications

    • 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
    • H04R9/02—Details
    • 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 utility model relates to the field of sound and electricity conversion, in particular to a loudspeaker.
  • loudspeakers are essential components of mobile electronic devices, and their high-quality acoustic performance and space saving of components have become the development direction of loudspeakers.
  • the prior art loudspeaker includes a magnetic circuit system and a vibration system.
  • the magnetic circuit system includes a magnetic yoke, a magnetic steel disposed on the magnetic yoke, and a pole core attached to the magnetic steel.
  • the vibration system includes a diaphragm and a driver.
  • the voice coil of the vibrating diaphragm is arranged around the magnetic steel.
  • the purpose of the utility model is to provide a loudspeaker in which the sound film and the connecting ring are formed to form a new structure of the air-guiding duct of the loudspeaker.
  • a loudspeaker includes a support ring, a first magnetic circuit system fixed on one side of the support ring, and a first vibration system supported on the other side of the support ring, the first A vibration system is provided with a first diaphragm fixedly connected to the other side of the support ring and a first voice coil that drives the first diaphragm to vibrate, and the first magnetic circuit system includes a fixed connection to the support ring the magnetic cone, the speaker further includes a connecting ring surrounding the magnetic cone and fixed with the magnetic cone and a sound film on the side of the first diaphragm away from the first magnetic circuit system, the sound film
  • the membrane is fixed on the connecting ring, and the sound membrane, the support ring, the magnetic cone and the second side wall are surrounded to form a closed sounding cavity;
  • the sound membrane includes a panel spaced apart from the first diaphragm and a The side wall is bent and extended from the edge of the panel and fixed with the connecting ring; the side wall
  • the sound membrane and the connecting ring are integrally formed.
  • the conducting groove extends from an end of the side wall close to the panel to an end away from the panel.
  • the side walls of the sound membrane include two long-axis side walls and two short-axis side walls, and the conducting grooves are respectively arranged on the two short-axis side walls.
  • the first magnetic circuit system includes a first magnetic steel fixed in the receiving space of the magnetic basin, and a first pole fixedly connected to the side of the first magnetic steel away from the magnetic basin.
  • a core the magnetic basin includes a bottom wall fixedly connected with the first magnetic steel, a side wall surrounding the bottom wall and opposite to the first magnetic steel and forming a first magnetic gap, extending from the side wall and a first extension part connected with the support ring and a second extension part extended from the first extension part and fixedly connected with the first side wall of the connecting ring; the first voice coil is suspended on the first in a magnetic gap.
  • the first diaphragm includes a first central portion located in the central region of the first diaphragm, a first folded ring portion surrounding the first central portion, and a first folded ring portion away from the first folded ring portion.
  • a first fixing portion extending from the central portion and connected with the support ring, the fixing portion is provided with a first ball top with enhanced hardness.
  • the speaker further includes a second magnetic circuit system and a second vibration system fixed on the side of the magnetic cone away from the first magnetic steel.
  • the second magnetic circuit system includes a first main magnetic steel fixed on the side of the magnetic basin away from the first magnetic steel, surrounding the first main magnetic steel and connected with the first main magnetic steel.
  • the first auxiliary magnetic steel is arranged at intervals, the second main pole core is attached to the side of the first main magnetic steel away from the magnetic basin, and the second main pole core is attached to the side of the first auxiliary magnetic steel away from the magnetic basin.
  • the second auxiliary magnetic steel is arranged at intervals, and the splint is fixed on the side of the second main magnetic steel away from the second main pole core; a second main magnetic steel and the first auxiliary magnetic steel are formed between the first main magnetic steel and the first auxiliary magnetic steel.
  • the central area of the splint is provided with a through hole passing through it
  • the second main magnetic steel part is placed in the through hole and is spaced apart from the periphery of the through hole, and the through hole is connected to the through hole.
  • the second main magnets are also provided with a first connecting part connected to the two.
  • the speaker further includes a basin frame connected to the side of the magnetic basin away from the first magnetic steel
  • the second vibration system includes a first auxiliary diaphragm connected to the basin frame, placed on the A second bracket in the basin frame and fixedly connected with the side of the first auxiliary diaphragm away from the magnetic basin, a second bracket fixed on the second bracket and suspended in the second magnetic gap and the third magnetic gap Two voice coils, and a second diaphragm fixed on the side of the basin frame away from the magnetic cone.
  • the second diaphragm includes a second spherical top placed in the central area and fixedly connected to the side of the second bracket away from the magnetic cone, and a second folded ring surrounding the second spherical top. part, a second connecting part extending from the second folding ring part to the top of the second ball, and a second fixing part extending away from the top of the second ball from the second folding ring part; the first The central area of the top of the two balls is provided with a first through hole therethrough, and a second auxiliary diaphragm is fixedly connected to the top of the second ball at one end of the first through hole. The other end is fixedly connected with the splint.
  • the speaker further includes a first bracket placed between the first voice coil and the first diaphragm, a first bracket attached to the first bracket and the support ring on the side away from the magnetic cone.
  • the beneficial effect of the utility model is that: the utility model covers the sound film on the connecting ring and forms a cavity with the basin frame together, and the sound film is close to the inner side wall of the connecting ring.
  • the air channel effectively saves space compared to plastic or metal materials.
  • FIG. 1 is a three-dimensional schematic diagram of the speaker of the present invention from a viewing angle.
  • FIG. 2 is a three-dimensional schematic diagram of the speaker of the present invention from another viewing angle.
  • FIG. 3 is a schematic diagram of an exploded structure of the speaker of the present invention.
  • FIG. 4 is an exploded view of FIG. 1 .
  • FIG. 5 is an exploded view of FIG. 1 in another direction.
  • FIG. 6 is a cross-sectional view taken along the direction A-A in FIG. 1 .
  • FIG. 7 is a cross-sectional view taken along the direction B-B in FIG. 1 .
  • the present invention provides a loudspeaker 100.
  • the loudspeaker 100 is a double-sided sound output unit.
  • the speaker 100 includes a support ring 12 , a first magnetic circuit system 13 fixed on one side of the support ring 12 , and a first vibration system 14 supported on the other side of the support ring 12 .
  • the first vibration system 14 is provided with the support ring 12 .
  • the other side is fixedly connected to the first diaphragm 143 and the first voice coil 141 that drives the first diaphragm 143 to vibrate.
  • the first magnetic circuit system 13 includes a magnetic cone 131 that is fixedly connected to the support ring 12
  • the speaker 100 further includes a connection ring 2 that surrounds the magnetic cone 131 and is fixed to the magnetic cone 131 , and is located on the first diaphragm 143 away from the first magnetic circuit system. 13 side of the sound film 3, the sound film 3 is fixed to the connecting ring 2, and the connecting ring 2 includes a first side wall 21 fixedly connected with the first magnetic circuit system 13 and a first side wall 21 opposite to the sound film 3.
  • the second side wall 22 with which the side wall 32 abuts.
  • the sound film 3 , the support ring 12 , the magnetic cone 131 and the second side wall 22 form a closed sounding cavity 19 ;
  • the gap 23 communicates with the conducting groove 34 to form a conducting channel 35, and the conducting channel 35 communicates with the sounding cavity 19 and the outside world.
  • the present invention provides a cavity 5 formed by a connecting ring 2 and a sound membrane 3 covered on the connecting ring 2 together with the basin frame 11 , and a groove is formed on the inner side wall 331 of the sound membrane 3 and a cavity 5 is formed on the inner side wall 331 of the sound membrane 3 .
  • the side wall is provided with a notch 23 and is formed together to form a speaker with a new structure of the guide channel 35 of the speaker 100, which can effectively save space compared to the air guide channel made of plastic or metal.
  • the sound membrane 3 and the connecting ring 2 are integrally formed. The integral molding is beneficial to ensure the airtightness of the structure.
  • the conducting groove 34 extends from the end of the side wall 32 close to the panel 31 to the end away from the panel 31 .
  • the conducting groove 34 provided through is more conducive to the smoothness of the air flow, and will not affect the sound effect and the smoothness of the exhaust due to the disturbance of the air flow.
  • the side wall 1312 of the sound membrane 3 includes two long-axis side walls 32 and two short-axis side walls 33 , and the conducting grooves 34 are respectively disposed on the two short-axis side walls 33 . By arranging the conducting grooves 34 on the side wall 33 of the short axis, the distance between the two groups of conducting grooves 34 is increased to avoid mutual influence.
  • the first magnetic circuit system 13 includes a first magnetic steel 132 , and the porcelain magnetic basin 131 has a receiving space 111 , and the first magnetic steel 132 is fixed in the receiving space of the magnetic basin 131 .
  • the magnetic basin 131 includes a bottom wall 1311 fixedly connected with the first magnetic steel
  • the magnetic steel 132 is spaced apart and forms a side wall 1312 of the first magnetic gap 134 , a first extension portion 1313 extending from the side wall 1312 and connected with the support ring 12 , and a first extension portion 1313 extending from the first extension portion 1313 and connecting with the connecting ring 2.
  • the first side wall 21 is fixedly connected to the second extension portion 1314.
  • the first voice coil 141 is suspended in the first magnetic gap 134 .
  • the first diaphragm 143 includes a first central portion 1433 located in the central area of the first diaphragm 143 , a first folded ring portion 1432 surrounding the first central portion 1433 , and a first folded ring portion 1432 away from the first
  • a first fixing portion 1434 extending from the central portion 1433 and connected to the support ring 12 is provided with a first spherical top portion 1431 for enhancing hardness.
  • the structure of the first diaphragm 143 is given, so as to be implemented together with other components to ensure the acoustic effect.
  • the connecting ring 2 is an important part of the present invention to form the sound cavity 19, and its structural form is specifically shown in FIG. 5, the connecting ring 2 is a rectangular ring surrounding the first magnetic circuit system 13 and the first The vibration system 14 is fixed on the basin frame 11 , and the connecting ring 2 includes two long-axis sides x and two short-axis sides y. Among them, the lengths of the long-axis side x and the short-axis side y are relative to each other, and x and y are used to distinguish them in the figure, which cannot be understood as a limitation on the protection scope.
  • the air pressure generated in the cavity 5 when the first vibrating membrane 143 vibrates can lead out the air flow through the air guide channel 4 along the air flow conduction direction (the arrow points) as shown in FIG. 6 to balance the air pressure.
  • the speaker 100 further includes a second magnetic circuit system 16 and a second vibration system 17 fixed on the side of the magnetic cone 131 away from the first magnetic steel 132 .
  • the second magnetic circuit system 16 includes a first main magnetic steel 162 fixed on the side of the magnetic basin 131 away from the first magnetic steel 132 , a first main magnetic steel 162 surrounding the first main magnetic steel 162 and spaced from the first main magnetic steel 162 .
  • the central area of the splint 161 is provided with a through hole 1611 therethrough
  • the second main magnetic steel 164 is partially placed in the through hole 1611 and is spaced apart from the periphery of the through hole 1611, and between the through hole 1611 and the second main magnet
  • the steel 164 is also provided with a first connecting portion 1751 which is connected to the two.
  • the speaker 100 further includes a basin frame 11 connected to the side of the magnetic basin 131 away from the first magnetic steel 132
  • the second vibration system 17 includes a first auxiliary diaphragm 171 connected to the basin frame 11 and placed on the basin frame 11 .
  • a second bracket 172 fixedly connected to the side of the first auxiliary diaphragm 171 away from the magnetic cone 131 and a second voice coil 173 fixed to the second bracket 172 and suspended in the second magnetic gap 167 and the third magnetic gap 168 2.
  • the second diaphragm 174 is fixed on the side of the basin frame 11 away from the magnetic basin 131 .
  • the second diaphragm 174 includes a second ball top 1741 placed in the central area and fixedly connected to the side of the second bracket 172 away from the magnetic cone 131 , a second ring portion 1742 surrounding the second ball top 1741 , A second connecting portion 1743 extending from the second folded ring portion 1742 to the second ball top 1741 and a second fixing portion 1744 extending from the second folded ring portion 1742 to away from the second ball top 1741 ; the central area of the second ball top 1741 There is a first through hole 1611 therethrough, a second auxiliary diaphragm 175 with one end fixedly connected to the second ball top 1741 is disposed at the first through hole 1611, and the other end of the second auxiliary diaphragm 175 is fixed with the splint 161 connect.
  • the speaker 100 further includes a first bracket 142 disposed between the first voice coil 141 and the first diaphragm 143 , a first bracket 142 attached to the first bracket 142 and the support ring 12 on the side away from the magnetic cone 131 .
  • the flexible circuit board 15 and the second flexible circuit board 18 placed between the basin frame 11 and the magnetic basin 131 and connected to the second bracket 172 , the first flexible circuit board 15 also includes a first surface connected to the first diaphragm 143 151 and pins 152 electrically connected to the second flexible circuit board 18, the pins 152 are formed by extending the first flexible circuit board 15 along the support ring 12 and the magnetic basin 131 toward the side of the second flexible circuit board 18 close to the magnetic basin 131 . All the components of the speaker 100, the structural forms of the accessories, and the mutual positional and connection relationships are given above. Through the combination and cooperation of the various components, a loudspeaker with good acoustic effect is formed.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

Le présent modèle d'utilité concerne un haut-parleur. Le haut-parleur comprend un panier magnétique relié de manière fixe à un anneau de support, un anneau de liaison qui entoure le panier magnétique et est fixé au panier magnétique, et une membrane vocale qui est située sur le côté d'une première membrane vibrante éloignée d'un premier système de circuit magnétique. La membrane vocale est fixée sur l'anneau de connexion ; la membrane vocale, et l'anneau de support, le panier magnétique et la seconde paroi latérale sont encerclés pour définir une cavité fermée de génération de son ; la paroi latérale est fixée sur le côté de l'anneau de connexion distant du panier magnétique ; la paroi latérale fait saillie et s'étend dans une direction s'éloignant de l'anneau de connexion pour former une rainure traversante communiquant avec l'extérieur ; l'anneau de connexion est muni d'une encoche pénétrant à travers l'anneau de connexion dans une direction de vibration verticale ; l'encoche communique avec la rainure traversante pour former un canal traversant ; le canal traversant communique avec la cavité de génération de son et l'extérieur. Selon le présent modèle d'utilité, le film sonore recouvre l'anneau de connexion pour former la cavité avec le panier, et la paroi latérale intérieure de la membrane vocale proche de l'anneau de connexion est pourvue de la rainure qui est formée avec l'anneau de connexion pour former un canal de guidage d'air du haut-parleur, de sorte que par rapport à un matériau plastique ou métallique, l'espace est efficacement économisé.
PCT/CN2020/102096 2020-07-06 2020-07-15 Haut-parleur WO2022006943A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202021322695.2 2020-07-06
CN202021322695.2U CN212628404U (zh) 2020-07-06 2020-07-06 一种扬声器

Publications (1)

Publication Number Publication Date
WO2022006943A1 true WO2022006943A1 (fr) 2022-01-13

Family

ID=74746029

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/102096 WO2022006943A1 (fr) 2020-07-06 2020-07-15 Haut-parleur

Country Status (2)

Country Link
CN (1) CN212628404U (fr)
WO (1) WO2022006943A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023155564A1 (fr) * 2022-02-15 2023-08-24 华为技术有限公司 Haut-parleur et dispositif électronique
CN117119360A (zh) * 2023-10-23 2023-11-24 瑞声光电科技(常州)有限公司 发声器件

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115696148A (zh) * 2021-07-30 2023-02-03 华为技术有限公司 扬声器及电子设备
CN115696149A (zh) * 2021-07-30 2023-02-03 华为技术有限公司 一种双振膜扬声器和电子设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204929240U (zh) * 2015-08-10 2015-12-30 常州美欧电子有限公司 扬声器
CN105516870A (zh) * 2016-02-29 2016-04-20 歌尔声学股份有限公司 扬声器模组
US10225645B1 (en) * 2018-08-06 2019-03-05 AAC Technologies Pte. Ltd. Speaker box
CN109905821A (zh) * 2018-12-30 2019-06-18 瑞声科技(新加坡)有限公司 扬声器
CN210093530U (zh) * 2019-06-28 2020-02-18 瑞声科技(新加坡)有限公司 一种扬声器
US20200213766A1 (en) * 2018-12-30 2020-07-02 AAC Technologies Pte. Ltd. Speaker

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204929240U (zh) * 2015-08-10 2015-12-30 常州美欧电子有限公司 扬声器
CN105516870A (zh) * 2016-02-29 2016-04-20 歌尔声学股份有限公司 扬声器模组
US10225645B1 (en) * 2018-08-06 2019-03-05 AAC Technologies Pte. Ltd. Speaker box
CN109905821A (zh) * 2018-12-30 2019-06-18 瑞声科技(新加坡)有限公司 扬声器
US20200213766A1 (en) * 2018-12-30 2020-07-02 AAC Technologies Pte. Ltd. Speaker
CN210093530U (zh) * 2019-06-28 2020-02-18 瑞声科技(新加坡)有限公司 一种扬声器

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023155564A1 (fr) * 2022-02-15 2023-08-24 华为技术有限公司 Haut-parleur et dispositif électronique
CN117119360A (zh) * 2023-10-23 2023-11-24 瑞声光电科技(常州)有限公司 发声器件
CN117119360B (zh) * 2023-10-23 2024-02-23 瑞声光电科技(常州)有限公司 发声器件

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