WO2022006952A1 - Loudspeaker box - Google Patents

Loudspeaker box Download PDF

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Publication number
WO2022006952A1
WO2022006952A1 PCT/CN2020/102379 CN2020102379W WO2022006952A1 WO 2022006952 A1 WO2022006952 A1 WO 2022006952A1 CN 2020102379 W CN2020102379 W CN 2020102379W WO 2022006952 A1 WO2022006952 A1 WO 2022006952A1
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WO
WIPO (PCT)
Prior art keywords
bottom wall
wall
sound
fixed
speaker
Prior art date
Application number
PCT/CN2020/102379
Other languages
French (fr)
Chinese (zh)
Inventor
丁健华
吴树文
胡橙
沈凯华
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 WO2022006952A1 publication Critical patent/WO2022006952A1/en

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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
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • 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 technical field of acoustic devices, and in particular, to a speaker box.
  • the speakers in the prior art are glued to the shell through a plastic ring, and then the breathable isolation net is glued to the plastic ring to form a fully-filled single isolation solution, thereby reducing the speaker resonance frequency F0, improving distortion, and enhancing the speaker box.
  • this solution has many gluing steps, which affects the assembly efficiency of the speaker box.
  • the purpose of the present application is to provide a speaker box that is directly connected to the speaker unit by means of a ventilating isolation net to realize the isolation of the speaker unit.
  • a loudspeaker box includes a housing with a housing space and a speaker unit housed and fixed in the housing, the housing comprises a bottom wall, a top wall opposite to the bottom wall and arranged at intervals, and a speaker box from the bottom wall. a side wall extending from the bottom wall to the top wall, and the bottom wall, the side wall and the top wall enclose the receiving space;
  • a partition wall is protruded from the bottom wall toward the top wall, and the partition wall divides the accommodation space into a accommodating cavity for accommodating the speaker unit and a sound-absorbing cavity for accommodating a sound-absorbing material; the speaker unit the support is fixed to the partition wall;
  • the speaker unit includes a basin frame, a vibration system and a magnetic circuit system fixed on opposite sides of the basin frame, and the basin frame includes a body portion sandwiched between the vibration system and the magnetic circuit system, and An extension portion extending from the periphery of the body portion toward the magnetic circuit system, the extension portion is arranged around the periphery of the magnetic circuit system; the speaker box further includes a cover provided on the extension portion away from the vibration A ventilating isolation net at one end of the system, the ventilating isolation net is arranged at intervals from the magnetic circuit system; the speaker unit is provided with a leakage part, and the leaking part is in air communication with the sound-absorbing cavity through the ventilating isolation net.
  • the magnetic circuit system includes a magnetic bowl that is spaced apart from the vibration system and fixed to the extension portion, the magnetic bowl is spaced apart from the air-permeable isolation net, and the magnetic bowl and the air-permeable isolation net are spaced apart.
  • the net and the extension part are jointly enclosed to form a leakage space, and the leakage part penetrates the magnetic bowl and is arranged corresponding to the leakage space.
  • the magnetic circuit system further includes a magnetic steel assembly fixed on the side of the magnetic bowl close to the vibration system, the magnetic steel assembly includes a main magnetic steel and a magnetic steel assembly surrounding the main magnetic steel.
  • the basin frame further includes a protruding portion extending from the body portion to the inside of the speaker unit and covering the side magnet.
  • a side of the partition wall close to the speaker unit is recessed away from the speaker unit to form a support step, and the vibration system is abutted and fixed on the support step.
  • the vibration system includes a bracket fixed to the basin frame and a vibrating membrane fixed to the side of the bracket away from the basin frame, and the periphery of the vibrating membrane is sandwiched and fixed between the support step and the frame. between the brackets; the diaphragm and the bottom wall are spaced apart to form a front acoustic cavity, and the side wall is provided with a sound outlet channel connecting the front acoustic cavity and the outside.
  • a filling hole is formed through the bottom wall or the top wall, the filling hole communicates with the sound absorbing cavity, and the sound absorbing material is filled into the sound absorbing cavity through the filling hole.
  • the speaker box further includes a cover plate attached to the bottom wall or the top wall and covering the filling hole.
  • a leakage hole is formed through the bottom wall or the top wall, the leakage hole communicates with the sound-absorbing cavity, and the speaker box further includes a speaker box attached to the bottom wall or the top wall and covering The breathable mesh cloth of the leakage hole.
  • a through hole is formed through the side wall, and the speaker box further includes a circuit board electrically connecting the speaker unit and an external circuit.
  • the breathable insulating mesh is injection-molded or hot-melt-molded on the extending portion.
  • the beneficial effect of the present application lies in: extending the basin frame of the speaker unit toward the magnetic circuit system to form an extension part, so that the extension part is surrounded on the peripheral side of the magnetic circuit system, and installing the ventilation isolation net on the extension part of the basin frame , to achieve the isolation of the speaker unit.
  • the speaker unit isolation solution of the present application requires fewer components to be assembled, which can improve the assembly efficiency of the speaker box.
  • FIG. 1 is a schematic diagram of an embodiment of a speaker box
  • Fig. 2 is an exploded view of the loudspeaker box in Fig. 1;
  • Fig. 3 is the exploded view of the loudspeaker monomer part structure in Fig. 2;
  • Fig. 5 is the sectional view of loudspeaker box A-A place in Fig. 4;
  • Fig. 6 is the enlarged view of loudspeaker box B in Fig. 5;
  • FIG. 7 is a cross-sectional view at C-C in FIG. 4 .
  • the speaker box includes a housing 1 having a housing space 11 and a speaker unit 2 housed and fixed in the housing 1 .
  • the housing 1 includes a bottom wall 12 , and a The top wall 13, and the side wall 14 bent and extended from the bottom wall 12 toward the top wall 13, the bottom wall 12, the side wall 14 and the top wall 13 enclose a receiving space 11;
  • the partition wall 15, the partition wall 15 divides the accommodating space 11 into the accommodating cavity 111 for accommodating the speaker unit and the sound absorbing cavity 112 for accommodating the sound-absorbing material;
  • the speaker unit 2 is supported and fixed on the partition wall 15;
  • the speaker unit includes the basin frame 3 and the fixing
  • the vibration system 4 and the magnetic circuit system 5 on the opposite sides of the basin frame 3 the basin frame 3 includes a body portion 31 sandwiched between the vibration system 4 and the magnetic circuit system 5, and a body portion 31 from the periphery to the magnetic circuit system 5.
  • the extension part 32 is extended, and the extension part 32 is arranged on the peripheral side of the magnetic circuit system 5; the speaker box also includes a ventilating isolation net 6 that is covered at one end of the extension part 32 away from the vibration system 4, and the ventilating isolation net 6 is spaced from the magnetic circuit system 5.
  • the speaker unit 2 is provided with a leaking part, and the leaking part is in air communication with the sound-absorbing cavity 112 through the air-permeable isolation net 6.
  • the single isolation scheme of the above scheme in which the breathable isolation net 6 is installed on the basin frame 3 has a simpler structure, and fewer movable parts need to be installed and connected during the assembly process. Reducing the difficulty of assembly can improve the assembly efficiency of the operator to a certain extent, thereby increasing the production capacity of the speaker box.
  • the magnetic circuit system 5 includes a magnetic bowl 51 that is spaced apart from the vibration system 4 and fixed to the extension portion.
  • the magnetic bowl 51 is spaced apart from the air-permeable isolation net 6.
  • the magnetic bowl 51, the air-permeable isolation mesh 6 and the extension portion 32 are jointly enclosed to form a leakage space. 22.
  • the leakage part penetrates the magnetic bowl 51 and is arranged corresponding to the leakage space 22.
  • the leakage part is communicated with the sound-absorbing cavity 112 through the air-permeable isolation net 6, so as to reduce the speaker resonance frequency F0, improve the distortion, and improve the sound quality of the speaker box.
  • the magnetic circuit system 5 also includes a magnetic steel assembly 52 fixed on the side of the magnetic bowl 51 close to the vibration system 4.
  • the magnetic steel assembly 52 includes a main magnetic steel 521 and a side magnetic steel 522 surrounding the main magnetic steel 521.
  • 3 also includes a protruding portion 5221 extending from the body portion 31 to the interior of the speaker unit 2 and covering the side magnet steel 522.
  • the protruding part 5221 of the basin frame is made of metal material, it can play the role of conducting magnetism.
  • the side of the partition wall 15 close to the speaker unit 2 is recessed away from the speaker unit 2 to form a support step 151 .
  • the vibration system 4 includes a bracket 41 fixed on the basin frame 3 and a vibrating membrane 42 fixed on the side of the bracket 41 away from the basin frame 3.
  • the periphery of the vibrating membrane 42 is sandwiched and fixed between the support step 151 and the bracket 41;
  • the bottom wall 12 forms a front acoustic cavity 16 at intervals, and the side wall 14 is provided with a sound outlet channel 141 that communicates the front acoustic cavity 16 and the outside.
  • a filling hole 121 is formed through the bottom wall 12 or the top wall 13 .
  • the filling hole 121 communicates with the sound-absorbing cavity 112 , and the sound-absorbing material is filled into the sound-absorbing cavity 112 through the filling hole 121 .
  • the speaker box further includes a cover plate 7 attached to the bottom wall 12 or the top wall 13 and covering the filling hole 121, thereby preventing the sound-absorbing material from leaking from the sound-absorbing cavity 112 and ensuring the long-term working stability of the speaker box.
  • the filling hole 121 can also be provided on the top wall 13 according to specific application scenarios. This embodiment does not limit the position of the filling hole 121 , as long as the sound-absorbing material can be filled into the sound-absorbing cavity 112 .
  • the top wall 13 is provided with a leakage hole 131, the leakage hole 131 is communicated with the sound-absorbing cavity 112, and the leakage part can be communicated with the leakage hole 131 through the air-permeable isolation net 6 and the sound-absorbing cavity 112, so as to balance the sound pressure of the speaker during operation and ensure the operation of the speaker. stability.
  • the speaker box further includes a breathable mesh cloth 8 attached to the top wall 13 and covering the leakage holes 132. The setting of the breathable mesh cloth 8 can balance the sound pressure through airflow on the one hand, and can also prevent external pollutants from entering the sound absorption on the other hand. cavity 112, thereby ensuring the sound quality of the speaker box.
  • a through hole 142 is formed through the side wall 14 , and the speaker box further includes a circuit board 9 for electrically connecting the speaker unit and the external circuit through the through hole 142 . .
  • the breathable isolation net 6 is injection-molded or hot-melt-molded on the extension part 32, and the connection process is mature and the connection reliability is high.
  • the speaker unit can be realized. Body isolation.
  • the speaker unit isolation solution of the present application requires fewer components to be assembled, which can improve the assembly efficiency of the speaker box.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

The present application provides a loudspeaker, comprising a housing provided with an accommodation space, and a loudspeaker unit accommodated and fixed in the housing. The housing comprises a bottom wall, a top wall disposed opposite to and spaced apart from the bottom wall, and side walls which are bent and extend from the bottom wall to the top wall; the loudspeaker unit comprises a basket, and a vibration system and a magnetic circuit system which are fixed on both opposite sides of the basket; the loudspeaker box further comprises a ventilation isolation mesh covering the end of an extension portion far away from the vibration system; the ventilation isolation mesh is spaced apart from the magnetic circuit system; the loudspeaker unit is provided with a leakage portion; the leakage portion is in air communication with a sound absorption cavity via the ventilation isolation mesh. The loudspeaker unit is isolated by mounting the ventilation isolation mesh on the basket; compared with the existing loudspeaker unit isolation solutions, the loudspeaker unit isolation solution in the present application requires fewer parts to be assembled, and can improve the assembly efficiency of the loudspeaker box.

Description

扬声器箱speaker box 技术领域technical field
本申请涉及声学器件技术领域，尤其涉及一种扬声器箱。The present application relates to the technical field of acoustic devices, and in particular, to a speaker box.
背景技术Background technique
现有技术中的扬声器通过塑料环与壳体胶合，之后再将透气隔离网与塑料环胶合，以形成全灌装的单体隔离方案，进而达到降低扬声器谐振频率F0，改善失真，提升扬声器箱的发声品质，但这种方案胶合步骤较多，影响扬声器箱的装配效率。The speakers in the prior art are glued to the shell through a plastic ring, and then the breathable isolation net is glued to the plastic ring to form a fully-filled single isolation solution, thereby reducing the speaker resonance frequency F0, improving distortion, and enhancing the speaker box. However, this solution has many gluing steps, which affects the assembly efficiency of the speaker box.
技术问题technical problem
因此，有必要提供一种在扬声器单体隔离方案中能够提升扬声器装配效率的扬声器箱。Therefore, it is necessary to provide a speaker box that can improve the speaker assembly efficiency in the speaker unit isolation solution.
技术解决方案technical solutions
本申请的目的在于提供一种通过透气隔离网直接与扬声器单体连接实现单体隔离的扬声器箱。The purpose of the present application is to provide a speaker box that is directly connected to the speaker unit by means of a ventilating isolation net to realize the isolation of the speaker unit.
本申请的技术方案如下：The technical solution of this application is as follows:
一种扬声器箱，包括具有收容空间的壳体以及收容固定于所述壳体内的扬声器单体，所述壳体包括底壁、与所述底壁相对且间隔设置的顶壁，以及自所述底壁朝所述顶壁弯折延伸的侧壁，所述底壁、所述侧壁及所述顶壁围成所述收容空间；A loudspeaker box includes a housing with a housing space and a speaker unit housed and fixed in the housing, the housing comprises a bottom wall, a top wall opposite to the bottom wall and arranged at intervals, and a speaker box from the bottom wall. a side wall extending from the bottom wall to the top wall, and the bottom wall, the side wall and the top wall enclose the receiving space;
所述底壁向靠近所述顶壁方向凸设有隔离墙，所述隔离墙将所述收容空间分隔成***述扬声器单体的容纳腔和收容吸音材料的吸音腔；所述扬声器单体支撑固定于所述隔离墙；A partition wall is protruded from the bottom wall toward the top wall, and the partition wall divides the accommodation space into a accommodating cavity for accommodating the speaker unit and a sound-absorbing cavity for accommodating a sound-absorbing material; the speaker unit the support is fixed to the partition wall;
所述扬声器单体包括盆架以及固定于所述盆架相对两侧的振动***和磁路***，所述盆架包括夹设于所述振动***与所述磁路***之间的本体部以及自所述本体部周缘向靠近所述磁路***延伸的延伸部，所述延伸部围设于所述磁路***周侧；所述扬声器箱还包括盖设于所述延伸部远离所述振动***一端的透气隔离网，所述透气隔离网与所述磁路***间隔设置;所述扬声器单体设有泄露部，所述泄露部经所述透气隔离网与所述吸音腔空气连通。The speaker unit includes a basin frame, a vibration system and a magnetic circuit system fixed on opposite sides of the basin frame, and the basin frame includes a body portion sandwiched between the vibration system and the magnetic circuit system, and An extension portion extending from the periphery of the body portion toward the magnetic circuit system, the extension portion is arranged around the periphery of the magnetic circuit system; the speaker box further includes a cover provided on the extension portion away from the vibration A ventilating isolation net at one end of the system, the ventilating isolation net is arranged at intervals from the magnetic circuit system; the speaker unit is provided with a leakage part, and the leaking part is in air communication with the sound-absorbing cavity through the ventilating isolation net.
可选地，所述磁路***包括与所述振动***间隔设置并固定于所述延伸部的磁碗，所述磁碗与所述透气隔离网间隔设置，所述磁碗、所述透气隔离网与所述延伸部共同围合形成泄露空间，所述泄露部贯穿所述磁碗并对应所述泄露空间设置。Optionally, the magnetic circuit system includes a magnetic bowl that is spaced apart from the vibration system and fixed to the extension portion, the magnetic bowl is spaced apart from the air-permeable isolation net, and the magnetic bowl and the air-permeable isolation net are spaced apart. The net and the extension part are jointly enclosed to form a leakage space, and the leakage part penetrates the magnetic bowl and is arranged corresponding to the leakage space.
可选地，所述磁路***还包括固定于所述磁碗靠近所述振动***一侧的磁钢组件，所述磁钢组件包括主磁钢以及围设于所述主磁钢周侧的边磁钢，所述盆架还包括自所述本体部向所述扬声器单体内部延伸并盖设于所述边磁钢的凸出部。Optionally, the magnetic circuit system further includes a magnetic steel assembly fixed on the side of the magnetic bowl close to the vibration system, the magnetic steel assembly includes a main magnetic steel and a magnetic steel assembly surrounding the main magnetic steel. A side magnet, the basin frame further includes a protruding portion extending from the body portion to the inside of the speaker unit and covering the side magnet.
可选地，所述隔离墙靠近所述扬声器单体的一侧向远离所述扬声器单体凹陷形成支撑台阶，所述振动***抵接固定于所述支撑台阶。Optionally, a side of the partition wall close to the speaker unit is recessed away from the speaker unit to form a support step, and the vibration system is abutted and fixed on the support step.
可选地，所述振动***包括固定于所述盆架的支架以及固定于所述支架远离所述盆架一侧的振膜，所述振膜的周缘夹设固定于所述支撑台阶与所述支架之间；所述振膜与所述底壁间隔形成前声腔，所述侧壁开设有连通所述前声腔与外部的出音通道。Optionally, the vibration system includes a bracket fixed to the basin frame and a vibrating membrane fixed to the side of the bracket away from the basin frame, and the periphery of the vibrating membrane is sandwiched and fixed between the support step and the frame. between the brackets; the diaphragm and the bottom wall are spaced apart to form a front acoustic cavity, and the side wall is provided with a sound outlet channel connecting the front acoustic cavity and the outside.
可选地，所述底壁或所述顶壁贯穿开设有灌装孔，所述灌装孔与所述吸音腔连通，所述吸音材料经所述灌装孔填充至所述吸音腔内。Optionally, a filling hole is formed through the bottom wall or the top wall, the filling hole communicates with the sound absorbing cavity, and the sound absorbing material is filled into the sound absorbing cavity through the filling hole.
可选地，所述扬声器箱还包括贴设于所述底壁或所述顶壁并覆盖所述灌装孔的盖板。Optionally, the speaker box further includes a cover plate attached to the bottom wall or the top wall and covering the filling hole.
可选地，所述底壁或所述顶壁贯穿开设有泄露孔，所述泄露孔与所述吸音腔连通，所述扬声器箱还包括贴设于所述底壁或所述顶壁并覆盖所述泄露孔的透气网布。Optionally, a leakage hole is formed through the bottom wall or the top wall, the leakage hole communicates with the sound-absorbing cavity, and the speaker box further includes a speaker box attached to the bottom wall or the top wall and covering The breathable mesh cloth of the leakage hole.
可选地，所述侧壁贯穿形成通孔，所述扬声器箱还包括电连接所述扬声器单体与外部电路的电路板。Optionally, a through hole is formed through the side wall, and the speaker box further includes a circuit board electrically connecting the speaker unit and an external circuit.
可选地，所述透气隔离网注塑成型或热熔成型在所述延伸部上。Optionally, the breathable insulating mesh is injection-molded or hot-melt-molded on the extending portion.
有益效果beneficial effect
本申请的有益效果在于：通过将扬声器单体的盆架向靠近磁路***延伸形成延伸部并使得延伸部围设于磁路***周侧， 并将透气隔离网安装在盆架的延伸部上，实现扬声器单体隔离，相较于现有的扬声器单体隔离方案，本申请的扬声器单体隔离方案，需要装配的零部件更少，能够提高扬声器箱的装配效率。The beneficial effect of the present application lies in: extending the basin frame of the speaker unit toward the magnetic circuit system to form an extension part, so that the extension part is surrounded on the peripheral side of the magnetic circuit system, and installing the ventilation isolation net on the extension part of the basin frame , to achieve the isolation of the speaker unit. Compared with the existing speaker unit isolation solution, the speaker unit isolation solution of the present application requires fewer components to be assembled, which can improve the assembly efficiency of the speaker box.
附图说明Description of drawings
图1为扬声器箱一种实施方式的示意图； 1 is a schematic diagram of an embodiment of a speaker box;
图2为图1中扬声器箱的***图；Fig. 2 is an exploded view of the loudspeaker box in Fig. 1;
图3为图2中扬声器单体部分结构的***图；Fig. 3 is the exploded view of the loudspeaker monomer part structure in Fig. 2;
图4为本申请扬声器箱的俯视图；4 is a top view of the speaker box of the application;
图5为图4中扬声器箱A-A处的剖视图；Fig. 5 is the sectional view of loudspeaker box A-A place in Fig. 4;
图6为图5中扬声器箱B处的放大图；Fig. 6 is the enlarged view of loudspeaker box B in Fig. 5;
图7为图4中C-C处的剖视图。FIG. 7 is a cross-sectional view at C-C in FIG. 4 .
本发明的实施方式Embodiments of the present invention
下面结合附图和实施方式对本申请作进一步说明。The present application will be further described below with reference to the accompanying drawings and embodiments.
参考图1至图7，扬声器箱，包括具有收容空间11的壳体1以及收容固定于壳体1内的扬声器单体2，壳体1包括底壁12、与底壁12相对且间隔设置的顶壁13，以及自底壁12朝顶壁13弯折延伸的侧壁14，底壁12、侧壁14及顶壁13围成收容空间11；底壁12向靠近顶壁13方向凸设有隔离墙15，隔离墙15将收容空间11分隔成收容扬声器单体的容纳腔111和收容吸音材料的吸音腔112；扬声器单体2支撑固定于隔离墙15；扬声器单体包括盆架3以及固定于盆架3相对两侧的振动***4和磁路***5，盆架3包括夹设于振动***4与磁路***5之间的本体部31以及自本体部31周缘向靠近磁路***5延伸的延伸部32，延伸部32围设于磁路***5周侧；扬声器箱还包括盖设于延伸部32远离振动***4一端的透气隔离网6，透气隔离网6与磁路***5间隔设置;扬声器单体2设有泄露部，泄露部经透气隔离网6与吸音腔112空气连通。上述方案的将透气隔离网6安装在盆架3上的单体隔离方案，相较于现有的单体隔离方案，结构更加简单，在装配过程中所需要安装连接的活动零部件更少，降低装配难度，能够在一定程度上提高操作人员的装配效率，进而提高扬声器箱的产能。Referring to FIGS. 1 to 7 , the speaker box includes a housing 1 having a housing space 11 and a speaker unit 2 housed and fixed in the housing 1 . The housing 1 includes a bottom wall 12 , and a The top wall 13, and the side wall 14 bent and extended from the bottom wall 12 toward the top wall 13, the bottom wall 12, the side wall 14 and the top wall 13 enclose a receiving space 11; The partition wall 15, the partition wall 15 divides the accommodating space 11 into the accommodating cavity 111 for accommodating the speaker unit and the sound absorbing cavity 112 for accommodating the sound-absorbing material; the speaker unit 2 is supported and fixed on the partition wall 15; the speaker unit includes the basin frame 3 and the fixing The vibration system 4 and the magnetic circuit system 5 on the opposite sides of the basin frame 3, the basin frame 3 includes a body portion 31 sandwiched between the vibration system 4 and the magnetic circuit system 5, and a body portion 31 from the periphery to the magnetic circuit system 5. The extension part 32 is extended, and the extension part 32 is arranged on the peripheral side of the magnetic circuit system 5; the speaker box also includes a ventilating isolation net 6 that is covered at one end of the extension part 32 away from the vibration system 4, and the ventilating isolation net 6 is spaced from the magnetic circuit system 5. Setting; the speaker unit 2 is provided with a leaking part, and the leaking part is in air communication with the sound-absorbing cavity 112 through the air-permeable isolation net 6. Compared with the existing single isolation scheme, the single isolation scheme of the above scheme in which the breathable isolation net 6 is installed on the basin frame 3 has a simpler structure, and fewer movable parts need to be installed and connected during the assembly process. Reducing the difficulty of assembly can improve the assembly efficiency of the operator to a certain extent, thereby increasing the production capacity of the speaker box.
磁路***5包括与振动***4间隔设置并固定于延伸部的磁碗51，磁碗51与透气隔离网6间隔设置，磁碗51、透气隔离网6与延伸部32共同围合形成泄露空间22，泄露部贯穿磁碗51并对应泄露空间22设置，泄露部经透气隔离网6与吸音腔112连通，从而达到降低扬声器谐振频率F0，改善失真，提升扬声器箱的发声品质目的。The magnetic circuit system 5 includes a magnetic bowl 51 that is spaced apart from the vibration system 4 and fixed to the extension portion. The magnetic bowl 51 is spaced apart from the air-permeable isolation net 6. The magnetic bowl 51, the air-permeable isolation mesh 6 and the extension portion 32 are jointly enclosed to form a leakage space. 22. The leakage part penetrates the magnetic bowl 51 and is arranged corresponding to the leakage space 22. The leakage part is communicated with the sound-absorbing cavity 112 through the air-permeable isolation net 6, so as to reduce the speaker resonance frequency F0, improve the distortion, and improve the sound quality of the speaker box.
磁路***5还包括固定于磁碗51靠近振动***4一侧的磁钢组件52，磁钢组件52包括主磁钢521以及围设于主磁钢521周侧的边磁钢522，盆架3还包括自本体部31向扬声器单体2内部延伸并盖设于边磁钢522的凸出部5221。在盆架的凸出部5221为金属材质的情况下，可以起到导磁的作用。The magnetic circuit system 5 also includes a magnetic steel assembly 52 fixed on the side of the magnetic bowl 51 close to the vibration system 4. The magnetic steel assembly 52 includes a main magnetic steel 521 and a side magnetic steel 522 surrounding the main magnetic steel 521. 3 also includes a protruding portion 5221 extending from the body portion 31 to the interior of the speaker unit 2 and covering the side magnet steel 522. In the case that the protruding part 5221 of the basin frame is made of metal material, it can play the role of conducting magnetism.
隔离墙15靠近扬声器单体2的一侧向远离扬声器单体2凹陷形成支撑台阶151，振动***4抵接固定于支撑台阶151，使得振动***4与底壁12之间间隔形成前声腔16。The side of the partition wall 15 close to the speaker unit 2 is recessed away from the speaker unit 2 to form a support step 151 .
振动***4包括固定于盆架3的支架41以及固定于支架41远离盆架3一侧的振膜42，振膜42的周缘夹设固定于支撑台阶151与支架41之间；振膜42与底壁12间隔形成前声腔16，侧壁14开设有连通前声腔16与外部的出音通道141。The vibration system 4 includes a bracket 41 fixed on the basin frame 3 and a vibrating membrane 42 fixed on the side of the bracket 41 away from the basin frame 3. The periphery of the vibrating membrane 42 is sandwiched and fixed between the support step 151 and the bracket 41; The bottom wall 12 forms a front acoustic cavity 16 at intervals, and the side wall 14 is provided with a sound outlet channel 141 that communicates the front acoustic cavity 16 and the outside.
底壁12或顶壁13贯穿开设有灌装孔121，灌装孔121与吸音腔112连通，吸音材料经灌装孔121填充至吸音腔112内。优选地，扬声器箱还包括贴设于底壁12或顶壁13并覆盖灌装孔121的盖板7，从而防止吸音材料从吸音腔112内泄漏，保障扬声器箱长久工作的稳定性。当然，也可根据具体的应用场景将灌装孔121设置在顶壁13上。本实施例不限制灌装孔121的位置，只要能够将吸音材料灌装入吸音腔112即可。A filling hole 121 is formed through the bottom wall 12 or the top wall 13 . The filling hole 121 communicates with the sound-absorbing cavity 112 , and the sound-absorbing material is filled into the sound-absorbing cavity 112 through the filling hole 121 . Preferably, the speaker box further includes a cover plate 7 attached to the bottom wall 12 or the top wall 13 and covering the filling hole 121, thereby preventing the sound-absorbing material from leaking from the sound-absorbing cavity 112 and ensuring the long-term working stability of the speaker box. Of course, the filling hole 121 can also be provided on the top wall 13 according to specific application scenarios. This embodiment does not limit the position of the filling hole 121 , as long as the sound-absorbing material can be filled into the sound-absorbing cavity 112 .
顶壁13上 开设有泄露孔131，泄露孔131与吸音腔112连通，泄露部能够经透气隔离网6和吸音腔112与泄露孔131连通，从而平衡扬声器在工作时的声压，保障扬声器工作的稳定性。优选地，扬声器箱还包括贴设于顶壁13并覆盖泄露孔132的透气网布8，透气网布8的设置一方面能够通过气流平衡声压，另一方面还可阻挡外界污染物进入吸音腔112，从而保障扬声器箱的发声品质。The top wall 13 is provided with a leakage hole 131, the leakage hole 131 is communicated with the sound-absorbing cavity 112, and the leakage part can be communicated with the leakage hole 131 through the air-permeable isolation net 6 and the sound-absorbing cavity 112, so as to balance the sound pressure of the speaker during operation and ensure the operation of the speaker. stability. Preferably, the speaker box further includes a breathable mesh cloth 8 attached to the top wall 13 and covering the leakage holes 132. The setting of the breathable mesh cloth 8 can balance the sound pressure through airflow on the one hand, and can also prevent external pollutants from entering the sound absorption on the other hand. cavity 112, thereby ensuring the sound quality of the speaker box.
侧壁14贯穿形成通孔142，扬声器箱还包括经通孔142电连接扬声器单体与外部电路的电路板9。。A through hole 142 is formed through the side wall 14 , and the speaker box further includes a circuit board 9 for electrically connecting the speaker unit and the external circuit through the through hole 142 . .
透气隔离网6注塑成型或热熔成型在延伸部32上，连接工艺成熟，连接可靠性高。 The breathable isolation net 6 is injection-molded or hot-melt-molded on the extension part 32, and the connection process is mature and the connection reliability is high.
综上，通过将扬声器单体的盆架向靠近磁路***延伸形成延伸部并使得延伸部围设于磁路***周侧， 并将透气隔离网安装在盆架的延伸部上，实现扬声器单体隔离，相较于现有的扬声器单体隔离方案，本申请的扬声器单体隔离方案，需要装配的零部件更少，能够提高扬声器箱的装配效率。To sum up, by extending the basin frame of the speaker unit close to the magnetic circuit system to form an extension part, making the extension part surround the peripheral side of the magnetic circuit system, and installing the ventilation isolation net on the extension part of the basin frame, the speaker unit can be realized. Body isolation. Compared with the existing speaker unit isolation solution, the speaker unit isolation solution of the present application requires fewer components to be assembled, which can improve the assembly efficiency of the speaker box.
以上所述的仅是本申请的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本申请创造构思的前提下，还可以做出改进，但这些均属于本申请的保护范围。The above are only the embodiments of the present application. It should be pointed out that for those of ordinary skill in the art, improvements can be made without departing from the creative concept of the present application, but these belong to the present application. scope of protection.

Claims (10)

  1. 一种扬声器箱，其特征在于，包括具有收容空间的壳体以及收容固定于所述壳体内的扬声器单体，所述壳体包括底壁、与所述底壁相对且间隔设置的顶壁，以及自所述底壁朝所述顶壁弯折延伸的侧壁，所述底壁、所述侧壁及所述顶壁围成所述收容空间；A loudspeaker box is characterized in that it comprises a casing with an accommodation space and a loudspeaker unit accommodated and fixed in the casing, the casing comprising a bottom wall and a top wall opposite to the bottom wall and arranged at intervals, and a side wall bent and extended from the bottom wall toward the top wall, the bottom wall, the side wall and the top wall enclose the receiving space;
    所述底壁向靠近所述顶壁方向凸设有隔离墙，所述隔离墙将所述收容空间分隔成***述扬声器单体的容纳腔和收容吸音材料的吸音腔；所述扬声器单体支撑固定于所述隔离墙；A partition wall is protruded from the bottom wall toward the top wall, and the partition wall divides the accommodation space into a accommodating cavity for accommodating the speaker unit and a sound-absorbing cavity for accommodating a sound-absorbing material; the speaker unit the support is fixed to the partition wall;
    所述扬声器单体包括盆架以及固定于所述盆架相对两侧的振动***和磁路***，所述盆架包括夹设于所述振动***与所述磁路***之间的本体部以及自所述本体部周缘向靠近所述磁路***延伸的延伸部，所述延伸部围设于所述磁路***周侧；所述扬声器箱还包括盖设于所述延伸部远离所述振动***一端的透气隔离网，所述透气隔离网与所述磁路***间隔设置;所述扬声器单体设有泄露部，所述泄露部经所述透气隔离网与所述吸音腔空气连通。The speaker unit includes a basin frame, a vibration system and a magnetic circuit system fixed on opposite sides of the basin frame, and the basin frame includes a body portion sandwiched between the vibration system and the magnetic circuit system, and An extension portion extending from the periphery of the body portion toward the magnetic circuit system, the extension portion is arranged around the periphery of the magnetic circuit system; the speaker box further includes a cover provided on the extension portion away from the vibration A ventilating isolation net at one end of the system, the ventilating isolation net is arranged at intervals from the magnetic circuit system; the speaker unit is provided with a leakage part, and the leaking part is in air communication with the sound-absorbing cavity through the ventilating isolation net.
  2. 根据权利要求1所述的扬声器箱，其特征在于：所述磁路***包括与所述振动***间隔设置并固定于所述延伸部的磁碗，所述磁碗与所述透气隔离网间隔设置，所述磁碗、所述透气隔离网与所述延伸部共同围合形成泄露空间，所述泄露部贯穿所述磁碗并对应所述泄露空间设置。The loudspeaker box according to claim 1, wherein the magnetic circuit system comprises a magnetic bowl arranged spaced apart from the vibration system and fixed to the extension portion, and the magnetic bowl is arranged spaced apart from the air-permeable isolation net , the magnetic bowl, the air-permeable isolation net and the extension part are jointly enclosed to form a leakage space, and the leakage part penetrates the magnetic bowl and is arranged corresponding to the leakage space.
  3. 根据权利要求2所述的扬声器箱，其特征在于：所述磁路***还包括固定于所述磁碗靠近所述振动***一侧的磁钢组件，所述磁钢组件包括主磁钢以及围设于所述主磁钢周侧的边磁钢，所述盆架还包括自所述本体部向所述扬声器单体内部延伸并盖设于所述边磁钢的凸出部。The speaker box according to claim 2, wherein the magnetic circuit system further comprises a magnetic steel assembly fixed on the side of the magnetic bowl close to the vibration system, the magnetic steel assembly including a main magnetic steel and a surrounding The side magnets are arranged on the peripheral side of the main magnets, and the basin frame further includes a protruding portion extending from the body portion to the inside of the speaker unit and covering the side magnets.
  4. 根据权利要求2所述的扬声器箱，其特征在于：所述隔离墙靠近所述扬声器单体的一侧向远离所述扬声器单体凹陷形成支撑台阶，所述振动***抵接固定于所述支撑台阶。The speaker box according to claim 2, wherein a side of the partition wall close to the speaker unit is recessed away from the speaker unit to form a support step, and the vibration system is abutted and fixed on the support steps.
  5. 根据权利要求4所述的扬声器箱，其特征在于：所述振动***包括固定于所述盆架的支架以及固定于所述支架远离所述盆架一侧的振膜，所述振膜的周缘夹设固定于所述支撑台阶与所述支架之间；所述振膜与所述底壁间隔形成前声腔，所述侧壁开设有连通所述前声腔与外部的出音通道。The speaker box according to claim 4, wherein the vibration system comprises a bracket fixed to the basin frame and a diaphragm fixed to the side of the bracket away from the basin frame, the periphery of the diaphragm is It is sandwiched and fixed between the support step and the bracket; the diaphragm and the bottom wall are spaced apart to form a front acoustic cavity, and the side wall is provided with a sound outlet channel connecting the front acoustic cavity and the outside.
  6. 根据权利要求1所述的扬声器箱，其特征在于：所述底壁或所述顶壁贯穿开设有灌装孔，所述灌装孔与所述吸音腔连通，所述吸音材料经所述灌装孔填充至所述吸音腔内。The speaker box according to claim 1, wherein a filling hole is formed through the bottom wall or the top wall, the filling hole is communicated with the sound-absorbing cavity, and the sound-absorbing material passes through the filling hole. The holes are filled into the sound-absorbing cavity.
  7. 根据权利要求6所述的扬声器箱，其特征在于：所述扬声器箱还包括贴设于所述底壁或所述顶壁并覆盖所述灌装孔的盖板。The speaker box according to claim 6, wherein the speaker box further comprises a cover plate attached to the bottom wall or the top wall and covering the filling hole.
  8. 根据权利要求1所述的扬声器箱，其特征在于，所述底壁或所述顶壁贯穿开设有泄露孔，所述泄露孔与所述吸音腔连通，所述扬声器箱还包括贴设于所述底壁或所述顶壁并覆盖所述泄露孔的透气网布。The speaker box according to claim 1, wherein a leakage hole is formed through the bottom wall or the top wall, the leakage hole communicates with the sound-absorbing cavity, and the speaker box further comprises a The bottom wall or the top wall and the breathable mesh cloth covering the leakage hole.
  9. 根据权利要求1所述的扬声器箱，其特征在于：所述侧壁贯穿形成通孔，所述扬声器箱还包括电连接所述扬声器单体与外部电路的电路板。The speaker box according to claim 1, wherein a through hole is formed through the side wall, and the speaker box further comprises a circuit board electrically connecting the speaker unit and an external circuit.
  10. 根据权利要求1所述的扬声器箱，其特征在于：所述透气隔离网注塑成型或热熔成型在所述延伸部上。The loudspeaker box according to claim 1, wherein the breathable isolation net is injection-molded or hot-melt-molded on the extending portion.
PCT/CN2020/102379 2020-07-09 2020-07-16 Loudspeaker box WO2022006952A1 (en)

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CN106982406A (en) * 2017-01-22 2017-07-25 瑞声科技(新加坡)有限公司 Loudspeaker enclosure
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