WO2022134274A1 - Haut-parleur - Google Patents

Haut-parleur Download PDF

Info

Publication number
WO2022134274A1
WO2022134274A1 PCT/CN2021/075034 CN2021075034W WO2022134274A1 WO 2022134274 A1 WO2022134274 A1 WO 2022134274A1 CN 2021075034 W CN2021075034 W CN 2021075034W WO 2022134274 A1 WO2022134274 A1 WO 2022134274A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnet
casing
voice coil
housing
magnetic circuit
Prior art date
Application number
PCT/CN2021/075034
Other languages
English (en)
Chinese (zh)
Inventor
何朝阳
杨磊
Original Assignee
常州阿木奇声学科技有限公司
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 常州阿木奇声学科技有限公司 filed Critical 常州阿木奇声学科技有限公司
Publication of WO2022134274A1 publication Critical patent/WO2022134274A1/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 technical field of audio frequency.
  • the speaker includes a diaphragm, a voice coil and a magnet.
  • a magnet is placed under the voice coil.
  • the voice coil vibrates under the action of a magnetic field, which drives the diaphragm to vibrate.
  • the structure of the voice coil and magnet of many speakers is simple, and the overall sensitivity of the speaker is low.
  • the technical problem to be solved by the present invention is to provide an improved loudspeaker for the above-mentioned defects in the related art.
  • the technical solution adopted by the present invention to solve the technical problem includes: providing a horn, comprising a housing, a magnetic circuit system and a vibration system arranged in the housing, the vibration system comprising a A voice coil that vibrates under the action of a magnetic field and a diaphragm driven by the voice coil, the magnetic circuit system includes a first magnet and a second magnet arranged on both sides of the vibration system in the first direction, the The first magnet includes a middle magnet and at least two side magnets provided on both sides of the middle magnet in the second direction.
  • the second magnet is provided inside the housing or embedded in the housing.
  • the casing is provided with a second opening penetrating the inside and outside, and the second magnet is embedded in the second opening.
  • the second magnet is provided on the inner side of the housing, and the inner side of the housing is provided with a positioning portion matched with the outer side of the second magnet.
  • the first magnet is provided inside the housing or embedded in the housing.
  • an embedding groove is provided on the inner side of the casing, and the first magnet is embedded in the embedding groove.
  • the casing is provided with a first opening through the inside and outside that matches the shape of the first magnet, and the first magnet is embedded in the first opening.
  • the position of the first magnet corresponds to the middle magnet.
  • the number of the second magnet is one, and the width of the second magnet corresponds to the width of the middle magnet.
  • the first direction is perpendicular to the second direction.
  • the voice coil is provided on a side of the diaphragm facing the first magnet and/or a side facing the second magnet.
  • the diaphragm is provided between the first magnet and the second magnet.
  • the horn includes two vibration systems arranged at intervals in the first direction
  • the magnetic circuit system includes two sets of the first magnets arranged at intervals in the first direction
  • the The two vibration systems are provided between the two magnetic circuit systems
  • the second magnet is provided between the two vibration systems.
  • a first magnetic field line is formed between the middle magnet and the side magnet of the first magnet
  • a second magnet is formed between the first magnet and the second magnet. Magnetic field lines, the magnetic field increases, the overall sensitivity of the speaker will increase.
  • FIG. 1 is a perspective view of a speaker according to some embodiments of the present invention.
  • FIG. 2 is a schematic diagram of the internal structure of the horn according to the first embodiment of the present invention (S and N in the figure represent the polarity of the magnet).
  • FIG. 3 is a partial enlarged view of part A in FIG. 2 .
  • FIG. 4 is a schematic diagram of the internal structure of the speaker according to the second embodiment of the present invention (S and N in the figure represent the polarity of the magnet).
  • FIG. 5 is a partial enlarged view of part B in FIG. 4 .
  • FIG. 6 is a schematic diagram of the positional relationship between the first magnet and the second magnet of the horn according to some embodiments of the present invention.
  • FIG. 7 is a schematic diagram of the internal structure of the speaker according to the fourth embodiment of the present invention.
  • FIG. 8 is a schematic diagram of the internal structure of the speaker according to the fifth embodiment of the present invention.
  • FIG. 9 is a schematic diagram of the internal structure of the speaker according to the sixth embodiment of the present invention.
  • FIG. 10 is a schematic diagram of the internal structure of the speaker according to the seventh embodiment of the present invention.
  • FIG. 11 is a schematic diagram of the internal structure of the horn according to the eighth embodiment of the present invention.
  • FIG. 12 is a schematic diagram of the internal structure of the horn according to the ninth embodiment of the present invention.
  • FIG. 13 is a schematic diagram of the internal structure of the horn according to the tenth embodiment of the present invention.
  • FIG. 14 is a schematic diagram of the internal structure of the horn according to the eleventh embodiment of the present invention.
  • magnetic circuit system 1 first magnet 11, middle magnet 111, side magnet 112, second magnet 12, first magnetic field line 13, second magnetic field line 14, vibration system 2, diaphragm 21.
  • Voice coil 22 housing 3, upper cover 31, lower cover 32, first direction 41, second direction 42, third direction 43, first opening 3a, second opening 3b, positioning portion 3c.
  • a horn in an embodiment of the present invention includes a housing 3, a magnetic circuit system 1 and a vibration system 2 arranged in the housing 3, and the vibration system 2 includes a
  • the magnetic circuit system 1 includes the first magnet 11 and the second magnet 12 arranged on both sides of the first direction 41 of the vibration system 2
  • the first magnet 11 includes a middle magnet 111 and at least two side magnets 112 provided on both sides of the middle magnet 111 in the second direction 42 .
  • the first magnetic field line 13 is formed between the middle magnet 111 and the side magnet 112 of the first magnet 11, and the second magnetic field line 14 is formed between the first magnet 11 and the second magnet 12, and the magnetic field is enhanced, according to
  • the shape of the casing 3 may be square or circular.
  • the speaker can be applied to speaker fields such as earphone speakers, cell phone receivers, cell phone speakers and notebook speakers.
  • FIGS 2-5 and 7-14 illustrate various arrangements of the first magnet 11 and the second magnet 12.
  • the second magnet 12 is provided inside the casing 3 or embedded in the casing 3 .
  • the housing 3 includes an upper cover 31 and a lower cover 32, and the second magnet 12 is disposed inside the upper cover 31 as shown in Figures 2-3 or embedded in the upper cover 31 as shown in Figures 4-5.
  • the casing 3 may be provided with a second opening 3b penetrating the inside and outside that matches the shape of the second magnet 12 , and the second magnet 12 is embedded in the second opening 3b, preferably, The side surface of the second magnet 12 exposed to the outside of the casing 3 is flush with the outside of the casing 3 .
  • the second magnet 12 is disposed inside the housing 3 , and may be directly adhered to the inside of the housing 3 , and the housing 3 may be made of plastic or metal.
  • the inner side of the housing 3 may be provided with a positioning portion 3c that matches the outer side of the second magnet 12 .
  • the positioning portion 3c is preferably an annular body surrounding the second magnet 12 , the shape of the annular body is the same as that of the second magnet 12 .
  • the shape of the magnets 12 is matched.
  • the casing 3 can be made of plastic material, the second magnet 12 is first set in the injection mold, and the casing 3 fixed with the second magnet 12 is formed by injection molding, so that the second magnet 12 is embedded in the casing
  • the housing 3 with the positioning portion 3c can also be injection-molded first, and then the second magnet 12 is positioned by the positioning portion 3c and fixed on the housing 3 , for example, glued to the housing 3 .
  • the first magnet 11 may be provided inside the casing 3 or embedded in the casing 3 .
  • the first magnet 11 is provided inside the casing 3 , and may be directly glued to the inside of the casing 3 .
  • an insertion groove is provided on the inner side of the housing 3 , and the first magnet 11 is inserted into the insertion groove.
  • the housing 3 can be made of plastic material, the first magnet 11 is first set in an injection mold, and the housing 3 is molded with the first magnet 11 by injection molding, so that the first magnet 11 is embedded in the housing
  • the housing 3 of this embodiment is provided with a positioning portion 3c and an embedding groove, and the first magnet 11 and the second magnet 12 are respectively embedded in the positioning portion 3c and the embedding groove.
  • the casing 3 may be provided with a first opening 3a that passes through the inside and outside and matches the shape of the first magnet 11, and the first magnet 11 is embedded in the first opening 3a, preferably, The side surface of the first magnet 11 exposed to the outside of the casing 3 is flush with the outside of the casing 3 .
  • the housing 3 of this embodiment is provided with a first opening 3a and a second opening 3b penetrating the inside and outside, and the first magnet 11 and the second magnet 12 are respectively embedded in the first opening 3a and the second opening 3b.
  • the position of the first magnet 11 corresponds to the middle magnet 111 .
  • the number of the first magnets 11 may be at least one.
  • the width of the second magnet 12 corresponds to the width of the middle magnet 111 , and a second magnetic field line 14 is formed between the middle magnet 111 and the second magnet 12 .
  • the number of the middle magnets 111 is preferably one.
  • the number of side magnets 112 is preferably two.
  • the first magnet 11 and/or the second magnet 12 are bar magnets, preferably both are bar magnets.
  • the first direction 41 is perpendicular to the second direction 42.
  • the first direction 41 is a longitudinal direction
  • the second direction 42 is a transverse direction.
  • the longitudinal direction of the bar magnet is the third direction 43
  • the first direction 41 , the second direction 42 and the third direction 43 are perpendicular to each other.
  • the diaphragm 21 is provided between the first magnet 11 and the second magnet 12
  • the voice coil 22 is provided on the diaphragm 21
  • the voice coil 22 is preferably a racetrack-shaped voice coil 22
  • the position of part of the voice coil 22 Corresponds to the gap between the middle magnet 111 and the side magnets 112 .
  • the voice coil 22 is disposed on the side of the diaphragm 21 facing the first magnet 11 and/or the side facing the second magnet 12 . 2-3, the voice coil 22 may be provided on the side of the diaphragm 21 facing the first magnet 11; referring to FIG. 12, the voice coil 22 may be provided on the side of the diaphragm 21 facing the second magnet 12; see FIG. 13.
  • the voice coil 22 is provided on the side of the diaphragm 21 facing the first magnet 11 and the side facing the second magnet 12 at the same time, that is, the voice coil 22 is provided on both sides of the diaphragm 21, and the number of the voice coil 22 is At least two.
  • the speaker may include two vibration systems 2 arranged at intervals in the first direction 41 , each of the vibration systems 2 includes the vibration membrane 21 and the voice coil 22 , and a sound
  • the ring 22 is arranged on a diaphragm 21,
  • the magnetic circuit system 1 includes two sets of the first magnets 11 arranged at intervals in the first direction 41, and the two vibration systems 2 are arranged on the Between the two magnetic circuit systems 1 , the second magnet 12 is provided between the two vibration systems 2 .

Abstract

L'invention concerne un haut-parleur. Le haut-parleur comprend un boîtier, et un système de circuit magnétique et un système de vibration qui sont disposés dans le boîtier. Le système de vibration comprend une bobine acoustique qui peut générer des vibrations sous l'action d'un champ magnétique du système de circuit magnétique, et une membrane qui est entraînée par la bobine acoustique. Le système de circuit magnétique comprend un premier aimant et un second aimant, qui sont disposés sur deux côtés, dans une première direction, du système de vibration. Le premier aimant comprend un aimant central et au moins deux aimants latéraux, qui sont disposés sur deux côtés, dans une deuxième direction, de l'aimant central. Dans le haut-parleur, une première ligne d'induction magnétique est formée entre l'aimant central et chaque aimant latéral du premier aimant, et une seconde ligne d'induction magnétique est formée entre le premier aimant et le second aimant, de sorte que le champ magnétique est renforcé et que la sensibilité globale du haut-parleur est augmentée.
PCT/CN2021/075034 2020-12-21 2021-02-03 Haut-parleur WO2022134274A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202023104636 2020-12-21
CN202023104636.0 2020-12-21

Publications (1)

Publication Number Publication Date
WO2022134274A1 true WO2022134274A1 (fr) 2022-06-30

Family

ID=78020396

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/CN2021/075034 WO2022134274A1 (fr) 2020-12-21 2021-02-03 Haut-parleur
PCT/CN2021/079607 WO2022134318A1 (fr) 2020-12-21 2021-03-08 Haut-parleur et casque d'écoute

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/079607 WO2022134318A1 (fr) 2020-12-21 2021-03-08 Haut-parleur et casque d'écoute

Country Status (2)

Country Link
CN (2) CN214413032U (fr)
WO (2) WO2022134274A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206136279U (zh) * 2016-09-19 2017-04-26 万魔声学科技有限公司 平面振膜喇叭
CN107124685A (zh) * 2017-06-20 2017-09-01 维沃移动通信有限公司 一种扬声器及电子设备
CN210807645U (zh) * 2019-12-13 2020-06-19 常州阿木奇声学科技有限公司 喇叭
US20200221214A1 (en) * 2017-09-17 2020-07-09 Oren Mordechai Low profile dual driver magnet
CN111819866A (zh) * 2018-03-07 2020-10-23 哈曼国际工业有限公司 扬声器
CN212115664U (zh) * 2020-06-22 2020-12-08 歌尔股份有限公司 扬声器和耳机

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6934402B2 (en) * 2001-01-26 2005-08-23 American Technology Corporation Planar-magnetic speakers with secondary magnetic structure
US6810126B2 (en) * 2001-10-24 2004-10-26 Bg Corporation Planar magnetic transducer
US8085969B2 (en) * 2006-09-15 2011-12-27 Hpv Technologies, Inc. Full range planar magnetic microphone and arrays thereof
CN205883573U (zh) * 2016-08-12 2017-01-11 深圳倍声声学技术有限公司 一种防摔受话器
TW201813417A (zh) * 2016-09-20 2018-04-01 固昌通訊股份有限公司 平面喇叭單體
CN206402438U (zh) * 2017-01-11 2017-08-11 瑞声科技（南京）有限公司 扬声器

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206136279U (zh) * 2016-09-19 2017-04-26 万魔声学科技有限公司 平面振膜喇叭
CN107124685A (zh) * 2017-06-20 2017-09-01 维沃移动通信有限公司 一种扬声器及电子设备
US20200221214A1 (en) * 2017-09-17 2020-07-09 Oren Mordechai Low profile dual driver magnet
CN111819866A (zh) * 2018-03-07 2020-10-23 哈曼国际工业有限公司 扬声器
CN210807645U (zh) * 2019-12-13 2020-06-19 常州阿木奇声学科技有限公司 喇叭
CN212115664U (zh) * 2020-06-22 2020-12-08 歌尔股份有限公司 扬声器和耳机

Also Published As

Publication number Publication date
CN214413032U (zh) 2021-10-15
CN214675646U (zh) 2021-11-09
WO2022134318A1 (fr) 2022-06-30

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