WO2021000085A1 - Haut-parleur - Google Patents

Haut-parleur Download PDF

Info

Publication number
WO2021000085A1
WO2021000085A1 PCT/CN2019/093974 CN2019093974W WO2021000085A1 WO 2021000085 A1 WO2021000085 A1 WO 2021000085A1 CN 2019093974 W CN2019093974 W CN 2019093974W WO 2021000085 A1 WO2021000085 A1 WO 2021000085A1
Authority
WO
WIPO (PCT)
Prior art keywords
wall
boss
circuit board
sheet
top wall
Prior art date
Application number
PCT/CN2019/093974
Other languages
English (en)
Chinese (zh)
Inventor
李健
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
Priority to PCT/CN2019/093974 priority Critical patent/WO2021000085A1/fr
Priority to CN201921023467.2U priority patent/CN210168219U/zh
Publication of WO2021000085A1 publication Critical patent/WO2021000085A1/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 generating devices, in particular to a loudspeaker.
  • the structure of the existing loudspeaker is schematically shown.
  • the sound emitting unit 3 is placed in the receiving cavity of the cover plate 1A, and the circuit board 4 is directly welded to the pad of the sound emitting unit 3.
  • the cover frame of the product is getting smaller and smaller.
  • the circuit board will interfere with the cover frame even if the circuit board is wired according to the limit.
  • the width of the board 4 is too large to be completely contained in the cover 1A.
  • the cover 1A and the circuit board 4 have an overlapping area S, and the two interfere.
  • the purpose of the present invention is to provide a loudspeaker, which aims to solve the problem of interference between the cover plate and the circuit board due to the limitation of the width of the circuit board in the prior art.
  • a loudspeaker comprising a housing with a receiving space and a sounding unit accommodated in the receiving space, the sounding unit comprising a sounding surface and a back surface arranged oppositely, and a side surface connecting the sounding surface and the back surface , The back surface is exposed with a conductive terminal electrically connected to the sound emitting unit, and the housing includes a top wall corresponding to the sound emitting surface, a bottom wall opposite to the top wall, and a bottom wall from the top wall.
  • the speaker further includes a side wall fixed to the housing and connected to the conductive terminal
  • An electrically connected circuit board the top wall extends in the direction of the bottom wall and is formed with a boss spaced apart from the sound emitting unit
  • the speaker further includes a connection between the conductive terminal and the circuit board
  • the soldering piece includes a sheet-shaped body fixed on the side surface close to the side of the boss, and a first extension that is bent from the sheet-shaped body to the back surface and corresponds to the conductive terminal Part, and a second extension part bent and extended from the sheet-shaped body to the boss, the second extension part is fixed to the boss, and one end of the circuit board is fixed to the boss and The second extension portion is electrically connected to the conductive terminal.
  • the circuit board is connected with the sounding unit through soldering pieces, instead of directly welding the circuit board on the surface of the sounding unit, the width of the circuit board can be greatly reduced without interference with the casing, and the welding pieces It is fixed on the side surface of the sounding unit and will not interfere with the casing, thus avoiding the problem of interference between the circuit board and the cover plate due to the traditional connection method.
  • the technical solution is simple to assemble and suitable for mass production .
  • Fig. 1 is a schematic diagram of interference between a circuit board and a cover plate in the prior art
  • Figure 2 is a perspective view of an embodiment of a speaker of the utility model
  • Figure 3 is an exploded view corresponding to Figure 2;
  • Figure 4 is a perspective view of an embodiment of a solder tab of the utility model
  • Figure 5 is a structural diagram of the first embodiment of the utility model for connecting two solder tabs
  • Figure 6 is a structural diagram of the second embodiment of the utility model for connecting two solder tabs.
  • a loudspeaker comprising a housing with a receiving space and a sounding unit accommodated in the receiving space, the sounding unit comprising a sounding surface and a back surface arranged oppositely, and a side surface connecting the sounding surface and the back surface , The back surface is exposed with a conductive terminal electrically connected to the sound emitting unit, and the housing includes a top wall corresponding to the sound emitting surface, a bottom wall opposite to the top wall, and a bottom wall from the top wall.
  • the speaker further includes a side wall fixed to the housing and connected to the conductive terminal
  • An electrically connected circuit board the top wall extends in the direction of the bottom wall and is formed with a boss spaced apart from the sound emitting unit
  • the speaker further includes a connection between the conductive terminal and the circuit board
  • the soldering piece includes a sheet-shaped body fixed on the side surface close to the side of the boss, and a first extension that is bent from the sheet-shaped body to the back surface and corresponds to the conductive terminal Part, and a second extension part bent and extended from the sheet-shaped body to the boss, the second extension part is fixed to the boss, and one end of the circuit board is fixed to the boss and The second extension portion is electrically connected to the conductive terminal.
  • the two conductive terminals are exposed on the back surface and insulated from each other, and the two conductive terminals are located at opposite ends of the sound-producing monomer on the side close to the boss.
  • the terminals correspond one to one.
  • the sheet-shaped bodies of the two soldering pieces are spaced apart from each other.
  • the speaker further includes an insulating member connected between the two sheet-shaped bodies.
  • the sheet-shaped body is located between the side surface and the boss, and the extension directions of the first extension portion and the second extension portion are opposite.
  • the sheet-shaped body is perpendicular to the first extension portion, and the sheet-shaped body is perpendicular to the second extension portion.
  • the boss includes a top surface at an end of the boss away from the top wall, and an extension surface extending from a side of the top surface away from the side surface to the top wall.
  • the surface carries the second extension part.
  • the circuit board includes a soldering portion stacked on the top surface, a bending portion extending from the soldering portion to the top wall, and a bending portion extending from the bending portion and attached to the top wall A fixed connecting portion; the bent portion is attached to the extension surface.
  • an end of the connecting portion away from the boss forms a pad electrically connected to an external circuit, the pad is exposed on the housing, the pad is provided with a positioning hole, and the top wall is convex A positioning column matched and installed with the positioning hole is provided.
  • the housing further includes a mounting wall extending from the top wall toward the bottom wall, and the sound-producing monomer is correspondingly fixed to the mounting wall and spaced apart from the top wall.
  • the present utility model provides an embodiment of a loudspeaker, as shown in Figures 2 and 3, including a housing with a receiving space, which can be specifically composed of an upper housing 1 and a lower housing 2.
  • the accommodating space contains a sounding monomer 3
  • the sounding monomer 3 includes a sounding surface 31 and a back surface 32 disposed oppositely, and a side connecting the sounding surface 31 and the back surface 32 On the surface 33, the back surface 32 is exposed with a conductive terminal 34 electrically connected to the sound emitting unit 3;
  • the housing includes a top wall 11 corresponding to the sound emitting surface 31, and a bottom opposite to the top wall 11
  • the wall 21, and the side wall 14 extending from the edge of the top wall 11 toward the bottom wall 21, the top wall 11, the bottom wall 21 and the side wall 14 enclose the receiving space;
  • the top The wall 11 extends in the direction of the bottom wall 21 to form a boss 12 spaced apart from the sound-producing monomer 3;
  • the speaker also includes
  • the housing may further include a mounting wall 15 extending from the top wall 11 toward the bottom wall 21, and the sound-producing monomer 3 is correspondingly fixed to the mounting wall 15 and connected to the top wall.
  • the walls 11 are arranged at intervals.
  • the circuit board In the traditional speaker structure, the circuit board is directly welded to the surface of the sounding unit. When the width of the circuit board is too large, it will interfere with the housing. In the speaker provided by the present invention, the circuit board is connected to the sounding unit through soldering pieces. The width can be greatly reduced without interference with the shell, and the solder tabs are fixed on the side surface of the sounding unit, and will not interfere with the cover plate, thus avoiding the circuit board being too wide and the shell in the traditional connection method. In the event of interference, the technical solution is simple to assemble and suitable for mass production. In addition, the present invention uses the boss 12 to carry the second extension portion 53 of the solder lug, so as to prevent the second extension portion 53 from being in a suspended state from generating downward pulling force and thus affecting the connection reliability of the solder joint.
  • the extension directions of the first extension portion 52 and the second extension portion 53 are set according to the structure shown in the figure, and the two extension directions are opposite and perpendicular to the sheet-shaped body 51.
  • the extension position, angle, and extension direction can be flexibly adjusted, depending on the specific structural design.
  • the essence of the present invention lies in that by fixing the sheet-shaped body 51 to the side surface of the sounding unit 3, two welding ends (the first extension 52 and the second extension 53) are respectively extended from the sheet-shaped body 51 They are connected to the bonding pads 34 and the circuit board 4 respectively, thereby avoiding the problem of interference between the circuit board 4 and the housing when the circuit board 4 is too wide in the traditional connection method.
  • the technical solution is simple to assemble and suitable for mass production.
  • the soldering piece plays the role of connecting the circuit board and the bonding pad. Therefore, the soldering piece can be made of a common conductive material, such as a copper piece.
  • the circuit board is preferably a flexible circuit board.
  • two conductive terminals 34 may be provided, as shown in FIG. 3, which are respectively exposed on the back surface 32 and insulated from each other.
  • the two conductive terminals 34 are located on the sound-producing unit 3 close to the boss 12.
  • the two opposite ends of one side are also provided with two soldering tabs, 5A and 5B respectively, which are arranged at intervals, and the soldering tabs correspond to the conductive terminals one by one.
  • the sheet-shaped body of the solder tab 5A and the sheet-shaped body of the solder tab 5B in the above-mentioned embodiment can be connected through an insulator to form an integrated assembly, so that the pad and 2 When a soldering piece is soldered, only one alignment operation is required.
  • an insulating sheet 6A can be used to fix on the same surface of the sheet-shaped body of two solder sheets for connection. It is also possible to adopt a fixing method as shown in FIG. 6, using an insulating block 6B to be connected to the gap between the side end faces of the two solder plates of the sheet-shaped body.
  • the present utility model provides another better embodiment.
  • the boss 12 includes a top surface 121 located at an end of the boss away from the top wall 11, and a side surface 33 away from the top surface 121. One side extends to the extension surface 122 of the top wall 11, and the top surface 121 carries the second extension portion 53.
  • the circuit board 4 can be made into a suitable structure.
  • the circuit board 4 can include a soldering portion 41 stacked on the top surface 121, from the soldering portion 41 to the top
  • the bending portion 42 extending from the wall 11 and the connecting portion 43 extending from the bending portion 42 and being attached and fixed to the top wall; the bending portion 42 is attached to the extension surface 122, in this embodiment
  • the circuit board 4 can be tightly attached to the top wall 11 of the upper casing 1 for assembly and fixation to prevent the loosening of the circuit board 4 from pulling the solder joints.
  • the circuit board 4 further includes a pad 44 electrically connected to an external circuit, and the pad 44 is disposed at the connecting portion away from the boss. One end is exposed on the housing, the pad is also provided with a positioning hole 441, and the top wall 11 is protrudingly provided with a positioning post 13 that is matched and installed with the positioning hole 441.
  • the present utility model provides a speaker.
  • the circuit board is connected to the pad of the sounding unit through the soldering lug, and the sheet body of the soldering lug is fixed to the side surface of the sounding unit, and then the sheet body
  • the upper two extensions are respectively connected with the conductive terminals of the sound-producing monomer and the circuit board, thereby avoiding the problem of interference between the circuit board and the housing when the circuit board is too wide in the traditional connection method.
  • the technical solution is simple to assemble and suitable for mass production.
  • the present invention avoids reliability problems caused by adding solder tabs by adding a boss on the shell, and at the same time, it improves assembly efficiency and assembly accuracy by setting positioning posts on the shell and positioning holes on the circuit board. .

Landscapes

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

Abstract

Un haut-parleur, comprenant une coque pourvue d'un espace contenant, et une unité de production de son contenue dans l'espace de confinement, la face arrière de l'unité de production de son étant pourvue d'une borne conductrice connectée électriquement à l'unité de production de son de manière exposée, est fourni dans le présent modèle d'utilité . Le haut-parleur comprend en outre une carte de circuit imprimé fixée à la coque et connectée électriquement à la borne conductrice, et une cosse de brasage connectée entre la borne conductrice et la carte de circuit imprimé. La cosse de brasage comprend un corps de feuille fixé à la surface latérale de l'unité de production de son, une première partie d'extension s'étendant vers la face arrière de l'unité de production de son à partir du corps de feuille de manière courbée et correspondant à la borne conductrice, et une seconde partie d'extension s'étendant dans la direction à l'opposé de la première partie d'extension à partir du corps de feuille de manière courbée, et la carte de circuit imprimé est électriquement connectée à la borne conductrice au moyen de la seconde partie d'extension. La cosse de brasage est connectée à l'unité de production de son, ce qui permet d'éviter le problème dans les procédés de connexion classiques selon lequel une carte de circuit imprimé souple est trop large et interfère avec une plaque de recouvrement.
PCT/CN2019/093974 2019-06-29 2019-06-29 Haut-parleur WO2021000085A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2019/093974 WO2021000085A1 (fr) 2019-06-29 2019-06-29 Haut-parleur
CN201921023467.2U CN210168219U (zh) 2019-06-29 2019-07-03 一种扬声器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/093974 WO2021000085A1 (fr) 2019-06-29 2019-06-29 Haut-parleur

Publications (1)

Publication Number Publication Date
WO2021000085A1 true WO2021000085A1 (fr) 2021-01-07

Family

ID=69794979

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/093974 WO2021000085A1 (fr) 2019-06-29 2019-06-29 Haut-parleur

Country Status (2)

Country Link
CN (1) CN210168219U (fr)
WO (1) WO2021000085A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022000504A1 (fr) * 2020-07-03 2022-01-06 瑞声声学科技(深圳)有限公司 Enceinte de haut-parleur
CN112468907B (zh) * 2020-12-18 2022-03-01 瑞声新能源发展(常州)有限公司科教城分公司 扬声器箱
CN112468909B (zh) * 2020-12-18 2022-03-01 瑞声新能源发展(常州)有限公司科教城分公司 扬声器箱
CN213906847U (zh) * 2020-12-18 2021-08-06 瑞声光电科技(常州)有限公司 扬声器箱
CN213906848U (zh) * 2020-12-18 2021-08-06 瑞声光电科技(常州)有限公司 扬声器箱
CN112468908B (zh) * 2020-12-18 2022-03-01 瑞声新能源发展(常州)有限公司科教城分公司 扬声器箱及其装配方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140169613A1 (en) * 2012-12-13 2014-06-19 Chi Mei Communication Systems, Inc. Speaker module
CN206341393U (zh) * 2016-10-26 2017-07-18 瑞声科技(新加坡)有限公司 扬声器箱
CN107231592A (zh) * 2017-05-18 2017-10-03 歌尔股份有限公司 扬声器模组外壳的标准配件、标准配件组及扬声器模组
CN207354587U (zh) * 2017-10-10 2018-05-11 瑞声声学科技(常州)有限公司 扬声器模组
CN108307277A (zh) * 2018-01-05 2018-07-20 瑞声科技(新加坡)有限公司 扬声器箱
CN208638626U (zh) * 2018-08-03 2019-03-22 瑞声科技(新加坡)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
US20140169613A1 (en) * 2012-12-13 2014-06-19 Chi Mei Communication Systems, Inc. Speaker module
CN206341393U (zh) * 2016-10-26 2017-07-18 瑞声科技(新加坡)有限公司 扬声器箱
CN107231592A (zh) * 2017-05-18 2017-10-03 歌尔股份有限公司 扬声器模组外壳的标准配件、标准配件组及扬声器模组
CN207354587U (zh) * 2017-10-10 2018-05-11 瑞声声学科技(常州)有限公司 扬声器模组
CN108307277A (zh) * 2018-01-05 2018-07-20 瑞声科技(新加坡)有限公司 扬声器箱
CN208638626U (zh) * 2018-08-03 2019-03-22 瑞声科技(新加坡)有限公司 扬声器

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