WO2022088279A1 - Haut-parleur et terminal électronique - Google Patents

Haut-parleur et terminal électronique Download PDF

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Publication number
WO2022088279A1
WO2022088279A1 PCT/CN2020/128927 CN2020128927W WO2022088279A1 WO 2022088279 A1 WO2022088279 A1 WO 2022088279A1 CN 2020128927 W CN2020128927 W CN 2020128927W WO 2022088279 A1 WO2022088279 A1 WO 2022088279A1
Authority
WO
WIPO (PCT)
Prior art keywords
steel ring
ring
steel
flexible circuit
welding
Prior art date
Application number
PCT/CN2020/128927
Other languages
English (en)
Chinese (zh)
Inventor
祝赟
印兆宇
吴军
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 WO2022088279A1 publication Critical patent/WO2022088279A1/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 present application relates to the field of electro-acoustics, and in particular, to a speaker and an electronic terminal.
  • Some speakers in the related art use a steel ring instead of a basin frame, and the flexible circuit board is usually welded on the steel ring, but the contact area between the steel ring and the welding part of the flexible circuit board is too small, which leads to The ring welding is not firm, and the virtual welding between the flexible circuit board and the steel ring occurs from time to time, resulting in unstable sound quality.
  • the purpose of this application is to provide a loudspeaker and an electronic terminal, the flexible circuit board of the loudspeaker is more firmly welded and the sound quality is more stable.
  • a loudspeaker comprising a basin frame having a receiving space, a vibration system fixed on the basin frame, a magnetic circuit system for driving the vibration system, and a power circuit system for electrically connecting with the vibration system connected flexible circuit boards;
  • the basin frame includes a first steel ring and a second steel ring, the first steel ring and the second steel ring are enclosed to form the receiving space, and the first steel ring and the second steel ring are at least A welding portion for welding with the flexible circuit board is partially overlapped and formed.
  • the basin frame includes two oppositely disposed first steel rings and two oppositely disposed second steel rings, two first steel rings and two opposite The second steel rings are alternately connected and enclosed to form the accommodating space, and the welded portion is formed by overlapping the connection between the first steel ring and the second steel ring.
  • the first steel ring includes a first rod portion and a first overlapping portion formed by bending and extending from both ends of the first rod portion
  • the second steel ring includes a second rod and a second overlapping portion corresponding to the first overlapping portion formed by bending and extending from both ends of the second rod portion, the first rod portion is perpendicular to the second rod portion, and the first rod portion is perpendicular to the second rod portion.
  • An overlapping portion and the second overlapping portion are arranged to overlap and form the welding portion.
  • the vibration system includes a vibrating membrane for sounding, and the vibrating membrane is fixed on the first steel ring and the second steel ring.
  • the diaphragm includes a ring portion, a first fixing portion extending from the outer periphery of the ring portion, and a spherical top portion extending from the inner periphery of the ring portion.
  • the first steel ring and the second steel ring are respectively abutted on the first fixing portion.
  • the diaphragm further includes a limiting portion formed by bending and extending from the outer peripheral edge of the first fixing portion toward the first steel ring and the second steel ring. The sides of a steel ring and the second steel ring away from the top of the ball are respectively abutted on the limiting portion.
  • the magnetic circuit system includes a magnetic yoke, and the magnetic yoke is fixed on the first steel ring and/or the second steel ring.
  • the magnetic yoke includes a second fixing portion and abutting portions located on both sides of the second fixing portion, and the second steel ring is provided with a second fixing portion adapted for use with the second fixing portion.
  • the fixing groove of the second fixing part is installed, and the abutting part abuts on the side of the second steel ring facing the receiving space.
  • the flexible circuit boards are respectively abutted on the first steel ring and the second steel ring, and the flexible circuit boards are distributed on the magnetic yoke and face the first steel ring. Both sides of the direction of the steel ring.
  • an electronic terminal comprising a terminal body and the speaker as described in any of the above embodiments, the speaker being arranged on the terminal body.
  • the basin frame includes a first steel ring and a second steel ring, the first steel ring and the second steel ring are enclosed to form a receiving space, because the first steel ring and the second steel ring are at least partially overlapped and arranged to
  • the welding part for welding with the flexible circuit board is formed, so that the area of the welding surface on the formed welding part is larger than the contact area of a single steel ring and the flexible circuit board, thereby increasing the area that can be welded with the flexible circuit board, thereby making the
  • the flexible circuit board can be stably welded on the first steel ring and the second steel ring, which greatly reduces the probability of virtual welding, thereby making the sound quality of the speaker more stable.
  • FIG. 1 is a schematic diagram of the overall structure of a speaker according to an embodiment of the application
  • Fig. 2 is the exploded schematic diagram of the loudspeaker in Fig. 1;
  • Fig. 3 is the structural representation of the basin frame in Fig. 1;
  • Fig. 4 is the front view of the basin frame in Fig. 1;
  • Fig. 5 is the sectional view at A-A place in Fig. 4;
  • FIG. 6 is a schematic diagram of an overall structure of an electronic terminal according to an embodiment of the application.
  • Loudspeaker 2. Terminal body; 100, Basin frame; 101, Receiving space; 110, First steel ring; 111, First rod part; 112, First overlapping part; 120, Second steel ring; 121, No. 1 Two rod parts; 122, the second overlapping part; 123, the fixing groove; 130, the welding part; 131, the welding surface; 200, the vibration system; 210, the diaphragm; 211, the ring part; 212, the first fixing part; 213 300, magnetic circuit system; 310, magnetic yoke; 311, second fixing part; 312, abutting part; 400, flexible circuit board; 410, pad.
  • an embodiment of the present application provides a loudspeaker 1 .
  • the loudspeaker 1 in this embodiment includes a basin frame 100 having a receiving space 101 , a vibration system 200 fixed on the basin frame 100 for The magnetic circuit system 300 for driving the vibration system 200 and the flexible circuit board 400 for electrical connection with the vibration system 200 are provided.
  • part of the vibration system 200 and the part of the magnetic circuit system 300 in this embodiment are not clearly drawn because they do not involve the invention point, and 200 ( 300 ) in the drawings not only refers to a part of the vibration system 200
  • the structure also refers to a part of the structure of the magnetic circuit system 300 .
  • part of the vibration system 200 and the part of the magnetic circuit system 300 in this embodiment are not clearly drawn because they do not involve the invention point, and 200 ( 300 ) in the drawings not only refers to a part of the vibration system 200
  • the structure also refers to a part of the structure of the magnetic circuit system 300 .
  • the basin frame 100 includes a first steel ring 110 and a second steel ring 120, the first steel ring 110 and the second steel ring 120 are enclosed to form a receiving space 101, the first steel ring 110 and the second steel ring 120 The steel ring 110 and the second steel ring 120 are at least partially overlapped and formed to form the welding portion 130 for welding with the flexible circuit board 400 . Since the first steel ring 110 and the second steel ring 120 are at least partially overlapped, the welding portion 130 is formed.
  • the area of the welding surface 131 is larger than the area of the single steel ring in contact with the flexible circuit board 400, thereby increasing the area that can be welded with the flexible circuit board 400, so that the flexible circuit board 400 can be stably welded between the first steel ring 110 and the flexible circuit board 400.
  • the probability of virtual welding is greatly reduced, thereby making the sound quality of the speaker 1 more stable.
  • the first steel ring 110 and the second steel ring 120 are at least partially overlapped in the horizontal direction, and the welding portion 130 has a welding surface 131 parallel to the horizontal plane and used for welding with the flexible circuit board 400 .
  • the basin frame 100 includes two oppositely arranged first steel rings 110 and two oppositely arranged second steel rings 120, two first steel rings 110 and two second steel rings
  • the rings 120 are alternately connected and enclosed to form the receiving space 101 , and the joints of the first steel ring 110 and the second steel ring 120 are overlapped to form the above-mentioned welding portion 130 .
  • the welding portion 130 is formed at the connection between the first steel ring 110 and the second steel ring 120 , and only at the connection between the first steel ring 110 and the second steel ring 120 , the first steel ring 110 and the second steel ring 120 .
  • the width of the first steel ring 110 and the second steel ring 120 is larger, which makes it easier to firmly fix the flexible circuit board 400 on the first steel ring 110 and the second steel ring 120, and the width of other positions of the first steel ring 110 and the second steel ring 120
  • the widths of the rings are uniform, thereby improving the rational utilization of space by the first steel ring 110 and the second steel ring 120 .
  • the first steel ring 110 includes a first rod portion 111 and a first overlapping portion 112 formed by bending and extending from both ends of the first rod portion 111
  • the second steel ring 120 includes a first rod portion 111 .
  • the two rod parts 121 and the second overlapping parts 122 formed by bending and extending from the two ends of the second rod part 121 and corresponding to the first overlapping part 112 respectively.
  • the first rod part 111 is perpendicular to the second rod part 121, and the first overlapping part
  • the portion 112 and the second overlapping portion 122 are arranged to overlap and form the welding portion 130 .
  • the two first rod portions 111 are relatively parallel and spaced apart
  • the two second rod portions 121 are relatively parallel and spaced apart
  • the two first steel rings 110 and the two second steel rings 120 are enclosed to form a
  • the welding parts 130 are located at the four corners of the rectangle.
  • the first overlapping portion 112 and the second overlapping portion 122 are fixed together by welding, specifically, the first overlapping portion 112 and the second overlapping portion 122 can be fixed together by laser spot welding.
  • the first steel ring 110 is in a closed ring shape, and the second steel ring 120 is overlapped at the corner of the first steel ring 110 in the horizontal direction, for example, the first steel ring 110 In the shape of a rectangular ring, the second steel ring 120 is overlapped at four corners of the first steel ring 110 in the horizontal direction.
  • the overlapping position of the first steel ring 110 and the second steel ring 120 may also be a non-corner.
  • the flexible circuit board 400 is soldered to the soldering portion 130 through the pads 410 .
  • the flexible circuit board 400 abuts on the first steel ring 110 and the second steel ring 120 respectively.
  • the flexible circuit board 400 is fixed on the first steel ring 110 and the second steel ring 120 by gluing. on the steel ring 120.
  • the bonding area between the flexible circuit board 400 and the first steel ring 110 and the second steel ring 120 can also be increased, thereby increasing the number of the flexible circuit board 400 and the second steel ring 120.
  • the flexible circuit board 400 is not easy to fall off from the first steel ring 110 and the second steel ring 120 .
  • the vibration system 200 includes a diaphragm 210 for producing sound and a voice coil for driving the diaphragm 210 to vibrate and produce sound, and the diaphragm 210 is fixed on the first steel ring 110 and the second steel ring 110 ring 120.
  • the diaphragm 210 includes a ring portion 211 , a first fixing portion 212 extending from the outer periphery of the ring portion 211 , a spherical top portion 213 extending from the inner periphery of the ring portion 211 , the first steel ring 110 and the The second steel rings 120 are respectively abutted on the first fixing portions 212 .
  • the horizontal direction in the above embodiments refers to the direction parallel to the top of the ball 213 .
  • the diaphragm 210 further includes a limiting portion 214 formed by bending and extending from the outer periphery of the first fixing portion 212 toward the first steel ring 110 and the second steel ring 120 .
  • the sides of the ring 110 and the second steel ring 120 away from the ball top 213 are respectively abutted on the limiting portion 214 .
  • the magnetic circuit system 300 includes a magnetic yoke 310 , a main magnetic steel disposed in the center of the magnetic yoke 310 , and disposed on the magnetic yoke 310 and surrounding the main magnetic steel to form a magnetic gap
  • the auxiliary magnet, the main pole core attached above the main magnet, and the auxiliary pole core surrounding the main pole core and attached to the auxiliary magnet and fixed on the bracket, the yoke 310 is fixed on the first steel ring 110 and /or on the second steel ring 120 .
  • the yoke 310 is fixed on the second steel ring 120 .
  • the yoke 310 includes a second fixing portion 311 and abutting portions 312 located on both sides of the second fixing portion 311 .
  • the fixing groove 123 of the second fixing portion 311 is installed, and the abutting portion 312 abuts on the side of the second steel ring 120 facing the ball top 213 .
  • the fixing groove 123 is opened on the second rod portion 121 , and the abutting portion 312 abuts on the side of the second rod portion 121 facing the ball top 213 .
  • the flexible circuit boards 400 are distributed on both sides of the magnetic yoke 310 in the direction facing the first steel ring 110 .
  • FIG. 6 another embodiment of the present application provides an electronic terminal.
  • the electronic terminal includes a terminal body 2 and the speaker 1 in any of the above embodiments.
  • the speaker 1 is disposed on the terminal body 2 .
  • the area of the welding surface 131 on the formed welding portion 130 is larger than
  • the contact area of a single steel ring with the flexible circuit board 400 increases the area that can be welded with the flexible circuit board 400, so that the flexible circuit board 400 can be stably welded on the first steel ring 110 and the second steel ring 120, greatly The probability of virtual soldering is reduced, so that the sound quality of the speaker 1 is more stable, and the performance of the electronic terminal using the speaker 1 in the above embodiment is better.

Landscapes

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

Abstract

L'invention concerne un haut-parleur et un terminal électronique, comprenant un panier muni d'un espace de réception, un système de vibration fixé sur le panier, un système de circuit magnétique utilisé pour commander le système de vibration, et une carte de circuit flexible utilisée pour se connecter électriquement au système de vibration. Le panier comprend un premier anneau en acier et un second anneau en acier, le premier anneau en acier et le second anneau en acier enfermant l'espace de logement, et le premier anneau en acier et le second anneau en acier étant au moins partiellement disposés en chevauchement et formant une partie de soudage utilisée pour le soudage avec la carte de circuit flexible. Ainsi, la zone de la surface de soudage sur la partie de soudage formée est donc plus grande que la zone d'un seul anneau d'acier en contact avec la carte de circuit flexible, et ainsi la zone qui peut être soudée à la carte de circuit flexible est augmentée. Par conséquent, la carte de circuit imprimé flexible peut être soudée de manière stable sur le premier anneau d'acier et le deuxième anneau d'acier et le taux de joints secs est considérablement réduit, ce qui rend la qualité sonore du haut-parleur plus stable.
PCT/CN2020/128927 2020-10-30 2020-11-16 Haut-parleur et terminal électronique WO2022088279A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202022485559.1U CN213661940U (zh) 2020-10-30 2020-10-30 扬声器及电子终端
CN202022485559.1 2020-10-30

Publications (1)

Publication Number Publication Date
WO2022088279A1 true WO2022088279A1 (fr) 2022-05-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/128927 WO2022088279A1 (fr) 2020-10-30 2020-11-16 Haut-parleur et terminal électronique

Country Status (2)

Country Link
CN (1) CN213661940U (fr)
WO (1) WO2022088279A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100131108A1 (en) * 2008-01-18 2010-05-27 Tenksolar, Inc Thin-film photovoltaic module
CN101888762A (zh) * 2009-05-15 2010-11-17 日东工业株式会社 框架式壳体
CN206542569U (zh) * 2017-03-06 2017-10-03 瑞声光电科技(常州)有限公司 一种扬声器
CN209766516U (zh) * 2019-05-16 2019-12-10 昆山宝创新能源科技有限公司 电池模组壳体

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100131108A1 (en) * 2008-01-18 2010-05-27 Tenksolar, Inc Thin-film photovoltaic module
CN101888762A (zh) * 2009-05-15 2010-11-17 日东工业株式会社 框架式壳体
CN206542569U (zh) * 2017-03-06 2017-10-03 瑞声光电科技(常州)有限公司 一种扬声器
CN209766516U (zh) * 2019-05-16 2019-12-10 昆山宝创新能源科技有限公司 电池模组壳体

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