WO2021138954A1 - 扬声器箱 - Google Patents

扬声器箱 Download PDF

Info

Publication number
WO2021138954A1
WO2021138954A1 PCT/CN2020/074345 CN2020074345W WO2021138954A1 WO 2021138954 A1 WO2021138954 A1 WO 2021138954A1 CN 2020074345 W CN2020074345 W CN 2020074345W WO 2021138954 A1 WO2021138954 A1 WO 2021138954A1
Authority
WO
WIPO (PCT)
Prior art keywords
fixed
wall
air
sound
permeable
Prior art date
Application number
PCT/CN2020/074345
Other languages
English (en)
French (fr)
Inventor
吴军
魏威
印兆宇
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 WO2021138954A1 publication Critical patent/WO2021138954A1/zh

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 electro-acoustic conversion devices, in particular to a speaker box.
  • the speaker box of the related art includes an upper cover, a lower cover assembled with the upper cover to form an accommodating space, a sounding monomer and a ventilating partition accommodated in the accommodating space; the sounding monomer and the upper cover Enclosed into a front cavity, the sounding monomer, the upper cover and the lower cover jointly enclose a rear cavity, a barrier wall is formed in the rear cavity, and the air-permeable spacer is attached to the barrier wall and is connected to the barrier wall.
  • the blocking wall jointly partitions the rear cavity into a first rear cavity and a second rear cavity that are in air communication with each other, and the sound-producing monomer part is located in the first rear cavity.
  • the barrier wall and the air-permeable partition encapsulate the sound-absorbing particles in the second back cavity to form a DBASS space that serves as a virtual sound cavity.
  • the back cavity cannot be used efficiently due to the design limitation of the barrier wall structure. , Thereby limiting the low-frequency acoustic performance of the speaker box.
  • the purpose of the utility model is to provide a loudspeaker box with high filling efficiency, good low-frequency acoustic performance and convenient assembly.
  • the present invention provides a loudspeaker box, which includes an upper cover, a lower cover that is arranged on the upper cover and encloses a receiving space with the upper cover, and a sound box housed in the receiving space
  • a loudspeaker box which includes an upper cover, a lower cover that is arranged on the upper cover and encloses a receiving space with the upper cover, and a sound box housed in the receiving space
  • a single body, a breathable isolation component and a conductive terminal the inner side of the upper cover protrudes and extends to form a support wall
  • the sound-producing monomer includes a basin frame fixed to the support wall, a vibration system fixed to the basin frame, and a drive
  • the vibration system is a magnetic circuit system that vibrates and emits sound.
  • the magnetic circuit system includes a magnetic yoke fixed to an end of the basin frame away from the supporting wall; the conductive terminal is fixed to the basin frame and is connected to the sounding unit Electrically connected, the position where the magnetic yoke and the conductive terminal are arranged opposite to each other is provided with a way to avoid the conductive terminal; one end of the air-permeable isolation component is fixedly supported on the supporting wall, and the other end is fixed to the magnetic A yoke, the air-permeable isolation assembly and the sounding monomer jointly divide the containing space into a front cavity and a rear cavity, the sounding monomer has an inner cavity, and the basin frame and the magnetic yoke are spaced apart to form a leakage part,
  • the air-permeable isolation component is arranged around the peripheral side of the sound-producing unit and completely covers the leakage portion, and the inner cavity is in turn communicated with the rear cavity via the leakage portion and the air-permeable isolation component; the lower cover is provided There is an opening penetrating there
  • the shape of the opening matches the shape of the yoke.
  • the gap between the lower cover and the air-permeable isolation component is sealed by glue.
  • the air-permeable isolation assembly includes a ring-shaped bracket and a ring-shaped air-permeable spacer, the bracket is fixed to the supporting wall, one end of the air-permeable spacer is fixed to the bracket, and the other end is fixed to the bracket.
  • the yoke is fixed to the bracket and a ring-shaped air-permeable spacer, the bracket is fixed to the supporting wall, one end of the air-permeable spacer is fixed to the bracket, and the other end is fixed to the bracket.
  • the air-permeable spacer includes a first fixing portion fixed to an end of the yoke away from the supporting wall, and an extension wall bent and extended from the outer periphery of the first fixing portion in a direction approaching the upper cover And a second fixing portion bent and extended from an end of the extension wall away from the first fixing portion in a direction away from the sound emitting unit, the extending wall surrounds the peripheral side of the sound emitting unit and is connected to the leakage portion
  • the second fixing part is fixed to the end of the bracket away from the supporting wall.
  • the peripheral edge of the yoke is recessed along the vibration direction of the vibration system to form a fixing groove, and the first fixing portion is fixed to the fixing groove.
  • the first fixing portion includes a ring-shaped first fixing wall fixed to the fixing groove, and a position from the first fixing wall close to the relief opening along the direction perpendicular to the vibration direction.
  • a second fixing wall extending from the yoke, the second fixing wall being fixed to the fixing groove.
  • the relief step is formed by recessing the outer side of the second fixed wall along the vibration direction, and the lower cover includes a lower cover body covering the upper cover and the lower cover body close to the
  • the position of the relief step is a pressing wall protruding and extending perpendicular to the vibration direction, and the pressing wall is covered on the relief step.
  • the upper cover includes an upper cover body spaced apart from the lower cover body, and a side wall bent and extended from the outer periphery of the upper cover body along the vibration direction toward the lower cover body.
  • the cover body is arranged on the side wall, and the support wall includes a first support wall bent and extended by the upper cover body along the vibration direction, and bent and extended by the upper cover body along the vibration direction.
  • a second support wall located inside the first support wall, the bracket is fixed to the first support wall, and the basin frame is fixed to the second support wall.
  • the conductive terminal includes a first arm extending from the outside into the rear cavity, a second arm connected to the first arm and sandwiched and fixed between the bracket and the air-permeable spacer, and Two connecting arms extending from opposite sides of the second arm to the sound emitting unit respectively, the two connecting arms are respectively electrically connected to the sound emitting unit, and the relief opening includes two and respectively It is arranged directly opposite to the two connecting arms.
  • the periphery of the basin frame is fixed to the support wall by glue
  • the support is fixed to the support wall by the glue
  • the support and the air-permeable partition are sealed by glue.
  • the ventilating isolation component and the sounding monomer jointly separate the containing space into a front cavity and a rear cavity.
  • the sounding monomer has an inner cavity, and the basin frame and the magnetic yoke are close to one of the rear cavity.
  • the side partition forms a leakage part.
  • the air-permeable isolation component is arranged around the periphery of the sound-producing unit and completely covers the leakage part.
  • the inner cavity is connected to the rear cavity through the leakage part and the air-permeable isolation component in turn.
  • the rear cavity is filled with sound-absorbing particles, and the air-permeable isolation component will absorb the sound-absorbing particles.
  • the above structure makes the back cavity filled with sound-absorbing particles as a virtual sound cavity, which effectively improves the low-frequency acoustic performance of the speaker box; because the air-permeable isolation component is fixed around the sounding monomer, it greatly improves The volume of the back cavity effectively improves the filling efficiency of the sound-absorbing particles in the back cavity; in addition, the position where the yoke and the conductive terminal are arranged opposite to each other is provided with a concession opening that penetrates through it, and the concession opening is the conductive terminal and the sound
  • the welding between the monomers has played a role in giving way, making the welding more convenient and reducing the difficulty of assembling the speaker box.
  • Figure 1 is a schematic diagram of the three-dimensional structure of the speaker box of the present invention.
  • Figure 2 is an exploded schematic diagram of a part of the three-dimensional structure of the speaker box of the present invention.
  • Figure 3 is a schematic diagram of the assembly structure of the breathable isolation component and the sounding monomer of the speaker box of the present invention
  • Fig. 4 is an exploded schematic view of the three-dimensional structure of Fig. 3;
  • Figure 5 is a sectional view taken along the line A-A in Figure 1;
  • Fig. 6 is an enlarged view of the part B shown in Fig. 5.
  • the present invention provides a speaker box 100, which includes a housing 1, a sound-producing monomer 2, an air-permeable isolation component 3, and a conductive terminal 4.
  • the housing 1 has a receiving space 10, the inner side of which protrudes and extends a ring-shaped support wall 13; it is worth mentioning that the housing 1 can be an integrated structure or a separate structure, for example, in this In the embodiment, the housing 1 has a split structure, which includes an upper cover 11, a lower cover 12, and a supporting wall 13. The lower cover 12 is disposed on the upper cover 11 and is enclosed with the upper cover 11. ⁇ Said containing space 10.
  • the sounding monomer 2 is accommodated in the receiving space 10 and is supported and fixed to the upper cover 11; specifically, the sounding monomer 2 includes a basin 21 supported and fixed to the supporting wall 13 and is respectively fixed to The vibration system 22 of the basin frame 21, the magnetic circuit system 23 that drives the vibration system 22 to vibrate and produce sound, and the circuit board 24 fixed on the basin frame 21 to electrically connect the sounding unit 2 to the outside.
  • the lower cover 12 includes a lower cover body 121 covering the upper cover 11 and an opening 120 penetrating the lower cover body 121 along the vibration direction of the vibration system 22.
  • the upper cover 11 includes an upper cover body 111 that is spaced apart from the lower cover body 121 and a side wall 112 bent and extended from the outer periphery of the upper cover body 111 toward the lower cover body 121 along the vibration direction,
  • the lower cover body 121 is disposed on the side wall 112, and the side wall 112 is provided with a sound guide channel 110 penetrating the side wall 112 to emit sound.
  • the supporting wall 13 is formed by protruding and extending from the inner side of the upper cover 11 along the vibration direction; more specifically, the supporting wall 13 includes a first cover body 111 bent and extended along the vibration direction. A supporting wall 131 and a second supporting wall 132 extending from the upper cover body 111 in the vibration direction and located inside the first supporting wall 131. The first supporting wall 131 extends along the vibration direction. The vertical height is greater than the vertical height of the second supporting wall 132 along the vibration direction, that is, the first supporting wall 131 and the second supporting wall 132 form a supporting step structure.
  • the sounding monomer 2 has an inner cavity 20, which is supported and fixed to the supporting wall 13, and a peripheral side of the sounding monomer 2 is provided for connecting the inner cavity 20 and the sounding monomer 2 Leak 210 connected to the outside.
  • the periphery of the sound emitting monomer 2 is fixed to the support wall 13 by glue.
  • the basin frame 21 is supported and fixed to an end of the second support wall 132 close to the lower cover 12, that is, is supported on a support step structure formed by the first support wall 131 and the second support wall 132, The fixing is formed by applying glue on the periphery of the basin frame 21.
  • the magnetic circuit system 23 includes a magnetic yoke 231 fixed to the end of the basin frame 21 away from the vibration system 22 and a magnetic steel 232 fixed to the magnetic yoke 231.
  • the magnetic yoke 231 is used to fix and support the air-permeable Isolation component 3.
  • the air-permeable isolation assembly 3 and the sound-producing monomer 2 jointly divide the containing space 10 into a front cavity 101 and a rear cavity 102.
  • the vibration system 22 includes a diaphragm 221 fixed to one end of the basin frame 21 close to the second support wall 132, the diaphragm 221 and the upper cover 11 jointly enclose the front cavity 101, the The sound guide channel 110 connects the front cavity 101 with the outside air to form a side sound emitting structure of the speaker box 100.
  • the leakage portion 210 is formed by the basin frame 21 and the yoke 231 spaced apart; the rear cavity 102 is filled with sound-absorbing particles 5, and the air-permeable isolation assembly 3 encapsulates the sound-absorbing particles 5 in the rear cavity 102
  • the DBASS virtual acoustic cavity is formed inside, which is used to further improve the low-frequency acoustic performance.
  • the air-permeable isolation component 3 has a ring shape and is arranged around the sound-producing monomer 2, the air-permeable isolation component 3 completely covers the leaking portion 210, and the inner cavity 20 is sequentially separated by the leaking portion 210 and the air-permeable isolation
  • the assembly 3 communicates with the rear cavity 102.
  • the air-permeable isolation assembly 3 includes a ring-shaped bracket 31 and a ring-shaped air-permeable isolation member 32.
  • the bracket 31 is superimposed and fixed on the supporting wall 13 and arranged around the 2 peripheral sides of the sound emitting unit.
  • the bracket 31 is fixed to the supporting wall 13 by glue bonding.
  • the bracket 31 is supported and fixed to an end of the first supporting wall 131 close to the lower cover 12.
  • the glue fixed to the first supporting wall 131 of the bracket 31 and the glue fixed to the second supporting wall 132 of the vocal unit 2 are connected as a whole to form a solidification.
  • the air-permeable spacer 32 surrounds the peripheral side of the sound-producing monomer 2. One end of the air-permeable spacer 32 is superimposed and fixed to the bracket 31, and the other end is fixed to the yoke 231 of the yoke 2.
  • the bracket 31 and the air-permeable spacer 32 make the air-permeable isolating component 3 form a three-dimensional structure, so that the rear cavity 102 on the side of the air-permeable isolating component 3 away from the sound-producing monomer 2 is filled with sound-absorbing particles After 5, all are used as DBASS virtual sound cavity, which effectively improves the low-frequency acoustic performance of the speaker box 100; because the breathable isolation component 3 is arranged around the sounding monomer 2, the volume of the rear cavity 102 is greatly increased, thereby effectively improving the rear cavity The filling efficiency of the sound-absorbing particles 5 in 102.
  • the air-permeable isolator 32 includes a ring-shaped first fixing portion 321 fixed to the end of the sound-producing monomer 2 away from the supporting wall 13, and the outer periphery of the first fixing portion 321 is approached to the center.
  • the extension wall 322 bent and extended in the direction of the upper cover 11 and the end of the extension wall 322 away from the first fixing portion 321 is bent and extended in the direction 2 away from the sound emitting unit.
  • the second fixing portion 323, the extension wall 322 surrounds the 2 peripheral sides of the sound emitting unit and is disposed directly opposite to the leakage portion 210, the extension wall 322 is disposed directly opposite to the leakage portion 210, and the inner cavity 20 is in air communication with the rear cavity 102 through the leakage portion 210 and the extension wall 322 in sequence.
  • the second fixing portion 323 is fixed to an end of the bracket 31 away from the supporting wall 13. This structure makes the breathable isolation component 3 form a three-dimensional structure.
  • a fixing groove 2311 is recessed along the vibration direction on the periphery of the yoke 231, and the first fixing portion 321 is fixed to the fixing groove. 2311.
  • the fixing groove 2311 is arranged, that is, the first fixing portion 321 is clamped and fixed on the yoke 231, which effectively improves the reliability of fixing between the air-permeable spacer 32 and the yoke 231.
  • glue can be applied to the fixing groove 2311 so that the air-permeable spacer 32 and the yoke 231 can be glued and fixed, which further improves the fixing reliability between the two and at the same time improves the sealing performance.
  • the yoke 231 is arranged opposite to the conductive terminal 4 The position is provided with an escape port 2310 for avoiding the conductive terminal 4.
  • the conductive terminal 4 is accommodated in the accommodating space 10, and the conductive terminal 4 extends from the rear cavity 102 into the inner cavity 20 and is connected to the circuit board 24 of the sounding unit 2
  • the electrical connection is used to introduce an external electrical signal to the sound-producing unit 2; the relief opening 2310 is provided through the yoke 231 in a direction away from the conductive terminal 4 along the vibration direction.
  • the first fixing portion 321 includes a ring-shaped first fixing wall 3211 fixed to the fixing groove 2311, and a position of the first fixing wall 3211 close to the relief opening 2310 along the vertical direction.
  • the second fixed wall 3212 extending toward the yoke 231 in the vibration direction.
  • the number of the relief ports 2310 is not limited, and the number of the relief ports 2310 can be specifically set according to the electrical connection relationship between the conductive terminal 4 and the circuit board 24 of the sounding unit 2.
  • the conductive terminal 4 includes a first arm 41 extending from the outside into the rear cavity 102, connected to the first arm 41, and clamped and fixed to the bracket 31 and the The second arm 42 between the air-permeable spacers 32 and the two connecting arms 43 extending from opposite sides of the second arm 42 to the sounding unit 2 respectively, the circuit board 24 is provided with two separate Two bonding pads 241 are electrically connected to the connecting arm 43.
  • the two connecting arms 43 are electrically connected to the circuit board 24 through the two bonding pads 241 respectively.
  • the giving way 2310 includes two and The two connecting arms 43 are arranged directly opposite to each other; more specifically, taking the shape of the sounding monomer 2 as an example, the two connecting arms 43 are connected to the sounding monomer 2 with the same short length.
  • the positions of the two corners of the axis, that is, the two pads 241 of the circuit board 24 are arranged at the positions of the two corners of the same minor axis of the sounding unit 2, and the two give way to The openings 2310 are respectively located at the two corners of the short axis side.
  • the air-permeable spacer 32 and the sound-producing monomer 2 are exposed to the accommodating space 10 through the opening 120, the lower cover body 121, the air-permeable isolating component 3, and the upper cover 11
  • the rear cavity 102 is enclosed together.
  • the air-permeable spacer 32 is fixed to the lower cover body 121 to separate the rear cavity 102 from the opening 120.
  • the end of the air-permeable spacer 32 away from the supporting wall 13 and the end of the sound-producing monomer 2 away from the supporting wall 13 are exposed to avoid occupying the volume of the rear cavity 102, which effectively increases the volume of the rear cavity 102.
  • the space utilization rate of the rear cavity 102 allows more sound-absorbing particles 5 to be filled in the rear cavity 102, thereby improving the low-frequency acoustic performance of the speaker box 100.
  • the air-permeable spacer 32 Since the air-permeable spacer 32 is exposed, it is necessary to seal the position of the air-permeable isolating component 3 and the position corresponding to the escape opening 2310.
  • the air-permeable spacer 32 corresponds to the position of the escape opening 2310 along the line.
  • the vibration direction is recessed to form a relief step 3210, and the lower cover 12 is provided on the relief step 3210 to achieve sealing at this position.
  • the relief step 3210 is formed by recessing the outer side of the second fixed wall 3212 along the vibration direction, and the lower cover 12 further includes a position where the lower cover body 121 is close to the relief step 3210.
  • a pressing wall 122 protruding and extending perpendicular to the vibration direction is provided on the relief step 3210 to achieve a seal at this position, and at the same time, the air-permeable spacer 32 is pressed against the
  • the magnetic yoke 231 improves the reliability of fixing the gas-permeable spacer 32 and the magnetic yoke 231.
  • the shape of the opening 120 matches the shape of the yoke 231, so that after assembly, the inner side of the opening 120 can abut the outer side of the air-permeable spacer 32, thereby improving the lower cover 12.
  • the conductive terminal 4 is partially sandwiched and fixed between the bracket 31 and the air-permeable spacer 32, so that a certain gap is formed between the bracket 31 and the air-permeable spacer 32.
  • the bracket 31 and the air-permeable spacer 42 are glued and fixed, and the glue is used to achieve sealing to ensure the sealing of the inner cavity 20 so as to prevent the sound-absorbing particles 5 from entering the inner cavity 20.
  • the ventilating isolation component and the sounding monomer jointly separate the containing space into a front cavity and a rear cavity.
  • the sounding monomer has an inner cavity, and the basin frame and the magnetic yoke are close to one of the rear cavity.
  • the side partition forms a leakage part.
  • the air-permeable isolation component is arranged around the periphery of the sound-producing unit and completely covers the leakage part.
  • the inner cavity is connected to the rear cavity through the leakage part and the air-permeable isolation component in turn.
  • the rear cavity is filled with sound-absorbing particles, and the air-permeable isolation component will absorb the sound-absorbing particles.
  • the above structure makes the back cavity filled with sound-absorbing particles as a virtual sound cavity, which effectively improves the low-frequency acoustic performance of the speaker box; because the air-permeable isolation component is fixed around the sounding monomer, it greatly improves The volume of the back cavity effectively improves the filling efficiency of the sound-absorbing particles in the back cavity; in addition, the position where the yoke and the conductive terminal are arranged opposite to each other is provided with a concession opening that penetrates through it, and the concession opening is the conductive terminal and the sound
  • the welding between the monomers has played a role in giving way, making the welding more convenient and reducing the difficulty of assembling the speaker box.

Abstract

本实用新型提供了一种扬声器箱，其包括上盖、下盖、发声单体、透气隔离组件和导电端子；上盖延伸形成支撑壁，发声单体包括固定于支撑壁的盆架和固定于盆架的磁轭；导电端子与发声单体电连接，磁轭与导电端子相对设置的位置设有让位口；透气隔离组件分别与支撑壁和磁轭固定，透气隔离组件与发声单体共同将收容空间分隔成前腔和后腔，透气隔离组件环绕发声单体；下盖设有开口，透气隔离组件和发声单体通过开口外露于收容空间；透气隔离组件凹陷形成让位台阶，下盖盖设于让位台阶；后腔内填充吸音颗粒，透气隔离组件将吸音颗粒封装于后腔内。与相关技术相比，本实用新型的扬声器箱灌装效率高，低频声学性能优，且装配方便。

Description

扬声器箱 技术领域
本实用新型涉及电声转换装置技术领域，尤其涉及一种扬声器箱。
 背景技术
随着移动互联网时代的到来，智能移动设备的数量不断上升。而在众多移动设备之中，手机无疑是最常见、最便携的移动终端设备。目前，手机的功能极其多样，其中之一便是高品质的音乐功能，因此，用于播放声音的扬声器箱被大量应用到现在的智能移动设备之中。
相关技术的所述扬声器箱包括上盖、与该上盖组配形成一收容空间的下盖、收容于该收容空间内的发声单体和透气隔离件；所述发声单体与所述上盖围成前腔，所述发声单体、所述上盖及所述下盖共同围成后腔，述述后腔内形成挡壁，所述透气隔离件贴合于所述挡壁并与所述挡壁共同将所述后腔分隔为相互空气连通的第一后腔和第二后腔，所述发声单体部分位于所述第一后腔。
 技术问题
然而，相关技术的扬声器箱中，挡壁与透气隔离件将吸音颗粒封装于第二后腔内以形成充当虚拟声腔的DBASS空间，但因该挡壁结构的设计限制而不能高效的利用后腔，从而限制了扬声器箱的低频声学性能。
因此，实有必须提供一种新的扬声器箱解决上述技术问题。
 技术解决方案
本实用新型的目的在于提供一种灌装效率高、低频声学性能好、且装配方便的扬声器箱。
为了达到上述目的，本实用新型提供一种扬声器箱，其包括上盖、盖设于所述上盖并与所述上盖共同围成收容空间的下盖、收容于所述收容空间内的发声单体、透气隔离组件以及导电端子；所述上盖内侧凸出延伸形成支撑壁，所述发声单体包括支撑固定于所述支撑壁的盆架、固定于所述盆架的振动系统以及驱动所述振动系统振动发声的磁路系统，所述磁路系统包括固定于所述盆架远离所述支撑壁一端的磁轭；所述导电端子固定于所述盆架并与所述发声单体电连接，所述磁轭与所述导电端子相对设置的位置设有避让所述导电端子的让位口；所述透气隔离组件一端固定支撑于所述支撑壁，其另一端固定于所述磁轭，所述透气隔离组件与所述发声单体共同将所述收容空间分隔成前腔和后腔，所述发声单体具有内腔，所述盆架与所述磁轭间隔形成泄漏部，所述透气隔离组件环绕所述发声单体周侧设置且完全覆盖所述泄漏部，所述内腔依次经所述泄漏部及所述透气隔离组件与所述后腔连通；所述下盖设有沿所述振动系统的振动方向贯穿其上的开口，所述透气隔离组件和所述发声单体通过所述开口外露于所述收容空间；所述透气隔离组件对应所述让位口的位置沿所述振动方向凹陷形成让位台阶，所述下盖盖设于所述让位台阶；所述后腔内填充吸音颗粒，所述透气隔离组件将所述吸音颗粒封装于所述后腔内。
优选的，所述开口的形状与所述磁轭的形状匹配。
优选的，所述下盖与所述透气隔离组件之间通过胶水密封。
优选的，所述透气隔离组件包括呈环状的支架和呈环状的透气隔离件，所述支架固定于所述支撑壁，所述透气隔离件一端固定于所述支架，其另一端固定于所述磁轭。
优选的，所述透气隔离件包括固定于所述磁轭远离所述支撑壁一端的第一固定部、由所述第一固定部的外周缘向靠近所述上盖方向弯折延伸的延伸壁以及由所述延伸壁远离所述第一固定部的一端向远离所述发声单体方向弯折延伸的第二固定部，所述延伸壁环绕所述发声单体周侧并与所述泄漏部正对设置，所述第二固定部固定于所述支架远离所述支撑壁的一端。
优选的，所述磁轭周缘沿所述振动系统的振动方向凹陷形成的固定槽，所述第一固定部固定于所述固定槽。
优选的，所述第一固定部包括固定于所述固定槽且呈环状的第一固定壁以及由所述第一固定壁靠近所述让位口的位置沿垂直所述振动方向向所述磁轭延伸的第二固定壁，所述第二固定壁固定于所述固定槽。
优选的，所述让位台阶由所述第二固定壁外侧沿所述振动方向凹陷形成，所述下盖包括盖设于所述上盖的下盖本体以及由所述下盖本体靠近所述让位台阶的位置沿垂直所述振动方向凸出延伸的抵压壁，所述抵压壁盖设于所述让位台阶。
优选的，所述上盖包括与所述下盖本体间隔设置的上盖本体以及由所述上盖本体外周缘沿所述振动方向朝向所述下盖本体弯折延伸的侧壁，所述下盖本体盖设于所述侧壁，所述支撑壁包括由所述上盖本体沿所述振动方向弯折延伸的第一支撑壁以及由所述上盖本体沿所述振动方向弯折延伸且位于所述第一支撑壁内侧的第二支撑壁，所述支架固定于所述第一支撑壁，所述盆架固定于所述第二支撑壁。
优选的，所述导电端子包括从外部延伸至所述后腔内的第一臂、连接于所述第一臂且夹设固定于所述支架和所述透气隔离件之间的第二臂以及由所述第二臂的相对两侧分别向所述发声单体延伸的两个连接臂，两个所述连接臂分别电连接于所述发声单体，所述让位口包括两个且分别与两个所述连接臂正对设置。
优选的，所述盆架的周缘通过胶水贴合固定于所述支撑壁，所述支架通过该胶水贴合固定于所述支撑壁，所述支架与所述透气隔离件之间通过胶水密封。
 有益效果
与相关技术相比，本实用新型的扬声器箱中，透气隔离组件与发声单体共同将收容空间分隔成前腔和后腔，发声单体具有内腔，盆架与磁轭靠近后腔的一侧间隔形成泄漏部，透气隔离组件环绕发声单体周侧设置且完全覆盖泄漏部，内腔依次经泄漏部及透气隔离组件与后腔连通，后腔内填充吸音颗粒，透气隔离组件将吸音颗粒封装于后腔内，上述结构则使得后腔内填充吸音颗粒后全部作为虚拟声腔，有效提高了扬声器箱的低频声学性能；因透气隔离组件绕设固定于发声单体，极大程度的提高了后腔的体积，从而有效提高了后腔内的吸音颗粒的灌装效率；另外，磁轭与导电端子相对设置的位置设有贯穿其上的让位口，该让位口为导电端子和发声单体之间的焊接起到了让位作用，使得焊接更加方便，降低了扬声器箱的装配难度。
 附图说明
为了更清楚地说明本实用新型实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本实用新型的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图，其中：
图1为本实用新型扬声器箱的立体结构示意图；
图2为本实用新型扬声器箱的部分立体结构分解示意图；
图3为本实用新型扬声器箱的透气隔离组件和发声单体的装配结构示意图；
图4为图3的立体结构分解示意图；
图5为沿图1中A-A线的剖示图；
图6为图5中B所示部分的放大图。
 本发明的实施方式
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本实用新型的一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本实用新型保护的范围。
请同时参阅图1-6，本实用新型提供了一种扬声器箱100，包括壳体1、发声单体2、透气隔离组件3以及导电端子4。
所述壳体1具有收容空间10，其内侧凸出延伸呈环状的支撑壁13；值得一提的是，所述壳体1可以是一体结构，也可以是分体结构，比如，在本实施方式中，所述壳体1为分体结构，其包括上盖11、下盖12以及支撑壁13，所述下盖12盖设于所述上盖11并与所述上盖11共同围成所述收容空间10。
所述发声单体2收容于所述收容空间10内并支撑固定于所述上盖11；具体的，所述发声单体2包括支撑固定于所述支撑壁13的盆架21、分别固定于所述盆架21的振动系统22、驱动所述振动系统22振动发声的磁路系统23以及固定于所述盆架21用以将发声单体2与外部电连接的线路板24。
进一步的，所述下盖12包括盖设于所述上盖11的下盖本体121以及沿所述振动系统22的振动方向贯穿所述下盖本体121的开口120。
所述上盖11包括与所述下盖本体121间隔设置的上盖本体111以及由所述上盖本体111外周缘沿所述振动方向朝向所述下盖本体121弯折延伸的侧壁112，所述下盖本体121盖设于所述侧壁112，所述侧壁112设有贯穿其上用以出声的导声通道110。
所述支撑壁13由所述上盖11内侧沿所述振动方向凸出延伸形成；更为具体的，所述支撑壁13包括由所述上盖本体111沿所述振动方向弯折延伸的第一支撑壁131以及由所述上盖本体111沿所述振动方向弯折延伸且位于所述第一支撑壁131内侧的第二支撑壁132，所述第一支撑壁131沿所述振动方向的垂直高度大于所述第二支撑壁132沿所述振动方向的垂直高度，即所述第一支撑壁131与所述第二支撑壁132形成一支撑台阶结构。
在本实施方式中，所述发声单体2具有内腔20，其支撑固定于所述支撑壁13，所述发声单体2的周侧设有用以将所述内腔20与发声单体2外部连通的泄漏部210。本实施方式中，所述发声单体2的周缘通过胶水贴合固定于所述支撑壁13。
所述盆架21支撑固定于所述第二支撑壁132靠近所述下盖12的一端，即支撑于由所述第一支撑壁131和所述第二支撑壁132形成的支撑台阶结构上，通过在所述盆架21的周缘打胶后形成固定。
所述磁路系统23包括固定于所述盆架21远离所述振动系统22一端的磁轭231以及固定于所述磁轭231的磁钢232，所述磁轭231用以固定支撑所述透气隔离组件3。所述透气隔离组件3与所述发声单体2共同将所述收容空间10分隔成前腔101和后腔102。
进一步的，所述振动系统22包括固定于所述盆架21靠近所述第二支撑壁132一端的振膜221，所述振膜221与所述上盖11共同围成前腔101，所述导声通道110将所述前腔101与外界空气连通，以形成扬声器箱100的侧发声结构。
所述泄漏部210由所述盆架21与所述磁轭231间隔形成；所述后腔102内填充吸音颗粒5，所述透气隔离组件3将所述吸音颗粒5封装于所述后腔102内以形成DBASS虚拟声腔，用于进一步改善低频声学性能。
所述透气隔离组件3呈环状且环绕所述发声单体2设置，所述透气隔离组件3完全覆盖所述泄漏部210，所述内腔20依次经所述泄漏部210及所述透气隔离组件3与所述后腔102连通。
在本实施方式中，所述透气隔离组件3包括呈环状的支架31和呈环状的透气隔离件32。所述支架31叠设固定于所述支撑壁13且环绕所述发声单体2周侧设置，本实施方式中，所述支架31通过胶水贴合固定于所述支撑壁13。具体的，所述支架31支撑固定于所述第一支撑壁131靠近所述下盖12的一端。
更优的，支架31固定于所述第一支撑壁131的胶水与所述发声单体2固定于所述第二支撑壁132的胶水连接为一体并形成固化。
所述透气隔离件32环绕于所述发声单体2的周侧，所述透气隔离件32一端叠设固定于所述支架31，其另一端固定于所述磁轭2的磁轭231上。
本实施方式中，所述支架31与所述透气隔离件32使得所述透气隔离组件3形成一立体结构，使得透气隔离组件3远离所述发声单体2一侧的后腔102内填充吸音颗粒5后全部作为DBASS虚拟声腔，有效提高了扬声器箱100的低频声学性能；因透气隔离组件3绕设于发声单体2，极大程度的提高了后腔102的体积，从而有效提高了后腔102内的吸音颗粒5的灌装效率。
进一步的，所述透气隔离件32包括固定于所述发声单体2远离所述支撑壁13一端的呈环状的第一固定部321、由所述第一固定部321的外周缘向靠近所述上盖11方向弯折延伸的呈环状的延伸壁322以及由所述延伸壁322远离所述第一固定部321的一端向远离所述发声单体2方向弯折延伸的呈环状的第二固定部323，所述延伸壁322环绕所述发声单体2周侧并与所述泄漏部210正对设置，所述延伸壁322与所述泄漏部210正对设置，所述内腔20依次通过所述泄漏部210和所述延伸壁322与所述后腔102空气连通。
所述第二固定部323固定于所述支架31远离所述支撑壁13的一端。该结构使得所述透气隔离组件3形成一立体结构。
优选的，为了提高透气隔离件32与发声单体2固定的可靠性，所述磁轭231周缘沿所述振动方向凹陷形成的固定槽2311，所述第一固定部321固定于所述固定槽2311，该固定槽2311的设置，即将所述第一固定部321卡设固定于所述磁轭231上，有效地提高透气隔离件32与磁轭231之间固定的可靠性，另外，在装配时能够为所述透气隔离件32起到定位的作用，使得装配方便。更优的，能够在所述固定槽2311上打胶，以使所述透气隔离件32与所述磁轭231胶合固定，在进一步提高两者之间的固定可靠性，同时提高了密封性。
在此，需要说明的是，为了方便将所述导电端子4焊接于所述线路板24，并与所述发声单体2形成电连接，所述磁轭231与所述导电端子4相对设置的位置设有避让所述导电端子4的让位口2310。
在本实施方式中，所述导电端子4收容于所述收容空间10，所述导电端子4由所述后腔102延伸至所述内腔20内并与所述发声单体2的线路板24电连接，用于为所述发声单体2引入外部电信号；所述让位口2310沿所述振动方向朝远离所述导电端子4的方向贯穿所述磁轭231设置。
更具体的，所述第一固定部321包括固定于所述固定槽2311且呈环状的第一固定壁3211以及由所述第一固定壁3211靠近所述让位口2310的位置沿垂直所述振动方向向所述磁轭231延伸的第二固定壁3212。
值得一提的是，让位口2310的数量是不限的，可以根据导电端子4与发声单体2的线路板24电连接关系而对让位口2310 的数量进行具体的设置。比如，在本实施方式中，所述导电端子4包括从外部延伸至所述后腔102内的第一臂41、连接于所述第一臂41且夹设固定于所述支架31和所述透气隔离件32之间的第二臂42以及由所述第二臂42的相对两侧分别向所述发声单体2的延伸的两个连接臂43，所述线路板24设有两个分别与所述连接臂43电连接的两个焊盘241，两个所述连接臂43分别通过两个所述焊盘241与所述线路板24电连接，所述让位口2310包括两个且分别与两个所述连接臂43正对设置；更具体的，以所述发声单体2呈矩形为例展开说明，两个所述连接臂43分别连接于所述发声单体2同一个短轴边的两个角的位置，即所述线路板24的两个所述焊盘241设置于所述发声单体2同一个短轴边的两个角的位置，而两个所述让位口2310分别位于该短轴边的两个角的位置。
本实施方式中，所述透气隔离件32和所述发声单体2通过所述开口120外露于所述收容空间10，所述下盖本体121、所述透气隔离组件3以及所述上盖11共同围成所述后腔102。所述透气隔离件32固定于所述下盖本体121以将所述后腔102与所述开口120分隔。上述结构，将所述透气隔离件32远离所述支撑壁13的一端和所述发声单体2远离所述支撑壁13的一端外露以避免占用所述后腔102的体积，有效地提高了所述后腔102的空间利用率，使得后腔102的灌装更多的吸音颗粒5，提高扬声器箱100的低频声学性能。
由于所述透气隔离件32是外露的，需要对所述透气隔离组件3与让位口2310对应的位置进行密封，在此，所述透气隔离件32对应所述让位口2310的位置沿所述振动方向凹陷形成让位台阶3210，所述下盖12盖设于所述让位台阶3210以实现在该位置的密封。
进一步的，所述让位台阶3210由所述第二固定壁3212外侧沿所述振动方向凹陷形成，所述下盖12还包括由所述下盖本体121靠近所述让位台阶3210的位置沿垂直所述振动方向凸出延伸的抵压壁122，所述抵压壁122盖设于所述让位台阶3210以实现在该位置上的密封，同时将所述透气隔离件32压紧于所述磁轭231，从而提高所述透气隔离件32与磁轭231固定的可靠性。
优选的，所述开口120的形状与所述磁轭231的形状匹配，使得在装配后，所述开口120内侧面能够抵接于所述透气隔离件32外侧面，从而提高所述下盖12与所述透气隔离件32之间的密封性；更优的，所述下盖12与所述透气隔离组件3之间通过胶水密封，即在所述开口120内侧面与所述透气隔离件32外侧面之间打胶密封，更进一步地提高所述下盖12与所述透气隔离件32之间的密封性。
本实施方式中，所述导电端子4部分夹设固定于所述支架31和所述透气隔离件32之间，使所述支架31和所述透气隔离件32之间形成了一定间隙，所述支架31与所述透气隔离件42之间打胶固定，并通过该胶水实现密封，以保证所述内腔20的密封性，从而避免吸音颗粒5进入内腔20。
与相关技术相比，本实用新型的扬声器箱中，透气隔离组件与发声单体共同将收容空间分隔成前腔和后腔，发声单体具有内腔，盆架与磁轭靠近后腔的一侧间隔形成泄漏部，透气隔离组件环绕发声单体周侧设置且完全覆盖泄漏部，内腔依次经泄漏部及透气隔离组件与后腔连通，后腔内填充吸音颗粒，透气隔离组件将吸音颗粒封装于后腔内，上述结构则使得后腔内填充吸音颗粒后全部作为虚拟声腔，有效提高了扬声器箱的低频声学性能；因透气隔离组件绕设固定于发声单体，极大程度的提高了后腔的体积，从而有效提高了后腔内的吸音颗粒的灌装效率；另外，磁轭与导电端子相对设置的位置设有贯穿其上的让位口，该让位口为导电端子和发声单体之间的焊接起到了让位作用，使得焊接更加方便，降低了扬声器箱的装配难度。
以上所述仅为本实用新型的实施例，并非因此限制本实用新型的专利范围，凡是利用本实用新型说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其它相关的技术领域，均同理包括在本实用新型的专利保护范围内。

Claims (11)

  1. 一种扬声器箱，其包括上盖、盖设于所述上盖并与所述上盖共同围成收容空间的下盖、收容于所述收容空间内的发声单体、透气隔离组件以及导电端子；所述上盖内侧凸出延伸形成支撑壁，所述发声单体包括支撑固定于所述支撑壁的盆架、固定于所述盆架的振动系统以及驱动所述振动系统振动发声的磁路系统，所述磁路系统包括固定于所述盆架远离所述支撑壁一端的磁轭，其特征在于，所述导电端子固定于所述盆架并与所述发声单体电连接，所述磁轭与所述导电端子相对设置的位置设有避让所述导电端子的让位口；所述透气隔离组件一端固定支撑于所述支撑壁，其另一端固定于所述磁轭，所述透气隔离组件与所述发声单体共同将所述收容空间分隔成前腔和后腔，所述发声单体具有内腔，所述盆架与所述磁轭间隔形成泄漏部，所述透气隔离组件环绕所述发声单体周侧设置且完全覆盖所述泄漏部，所述内腔依次经所述泄漏部及所述透气隔离组件与所述后腔连通；所述下盖设有沿所述振动系统的振动方向贯穿其上的开口，所述透气隔离组件和所述发声单体通过所述开口外露于所述收容空间；所述透气隔离组件对应所述让位口的位置沿所述振动方向凹陷形成让位台阶，所述下盖盖设于所述让位台阶；所述后腔内填充吸音颗粒，所述透气隔离组件将所述吸音颗粒封装于所述后腔内。
  2. 根据权利要求1所述的扬声器箱，其特征在于，所述开口的形状与所述磁轭的形状匹配。
  3. 根据权利要求1所述的扬声器箱，其特征在于，所述下盖与所述透气隔离组件之间通过胶水密封。
  4. 根据权利要求1所述的扬声器箱，其特征在于，所述透气隔离组件包括呈环状的支架和呈环状的透气隔离件，所述支架固定于所述支撑壁，所述透气隔离件一端固定于所述支架，其另一端固定于所述磁轭。
  5. 根据权利要求4所述的扬声器箱，其特征在于，所述透气隔离件包括固定于所述磁轭远离所述支撑壁一端的第一固定部、由所述第一固定部的外周缘向靠近所述上盖方向弯折延伸的延伸壁以及由所述延伸壁远离所述第一固定部的一端向远离所述发声单体方向弯折延伸的第二固定部，所述延伸壁环绕所述发声单体周侧并与所述泄漏部正对设置，所述第二固定部固定于所述支架远离所述支撑壁的一端。
  6. 根据权利要求5所述的扬声器箱，其特征在于，所述磁轭周缘沿所述振动系统的振动方向凹陷形成的固定槽，所述第一固定部固定于所述固定槽。
  7. 根据权利要求6所述的扬声器箱，其特征在于，所述第一固定部包括固定于所述固定槽且呈环状的第一固定壁以及由所述第一固定壁靠近所述让位口的位置沿垂直所述振动方向向所述磁轭延伸的第二固定壁，所述第二固定壁固定于所述固定槽。
  8. 根据权利要求7所述的扬声器箱，其特征在于，所述让位台阶由所述第二固定壁外侧沿所述振动方向凹陷形成，所述下盖包括盖设于所述上盖的下盖本体以及由所述下盖本体靠近所述让位台阶的位置沿垂直所述振动方向凸出延伸的抵压壁，所述抵压壁盖设于所述让位台阶。
  9. 根据权利要求8所述的扬声器箱，其特征在于，所述上盖包括与所述下盖本体间隔设置的上盖本体以及由所述上盖本体外周缘沿所述振动方向朝向所述下盖本体弯折延伸的侧壁，所述下盖本体盖设于所述侧壁，所述支撑壁包括由所述上盖本体沿所述振动方向弯折延伸的第一支撑壁以及由所述上盖本体沿所述振动方向弯折延伸且位于所述第一支撑壁内侧的第二支撑壁，所述支架固定于所述第一支撑壁，所述盆架固定于所述第二支撑壁。
  10. 根据权利要求4所述的扬声器箱，其特征在于，所述导电端子包括从外部延伸至所述后腔内的第一臂、连接于所述第一臂且夹设固定于所述支架和所述透气隔离件之间的第二臂以及由所述第二臂的相对两侧分别向所述发声单体延伸的两个连接臂，两个所述连接臂分别电连接于所述发声单体，所述让位口包括两个且分别与两个所述连接臂正对设置。
  11. 根据权利要求10所述的扬声器箱，其特征在于，所述盆架的周缘通过胶水贴合固定于所述支撑壁，所述支架通过该胶水贴合固定于所述支撑壁，所述支架与所述透气隔离件之间通过胶水密封。
PCT/CN2020/074345 2020-01-09 2020-02-05 扬声器箱 WO2021138954A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202020049433.7U CN211321500U (zh) 2020-01-09 2020-01-09 扬声器箱
CN202020049433.7 2020-01-09

Publications (1)

Publication Number Publication Date
WO2021138954A1 true WO2021138954A1 (zh) 2021-07-15

Family

ID=72081143

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/074345 WO2021138954A1 (zh) 2020-01-09 2020-02-05 扬声器箱

Country Status (2)

Country Link
CN (1) CN211321500U (zh)
WO (1) WO2021138954A1 (zh)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112073854A (zh) * 2020-08-27 2020-12-11 瑞声新能源发展(常州)有限公司科教城分公司 发声器件
CN112073855A (zh) * 2020-08-27 2020-12-11 瑞声新能源发展(常州)有限公司科教城分公司 扬声器箱
CN112004170B (zh) * 2020-08-27 2021-08-06 瑞声新能源发展(常州)有限公司科教城分公司 扬声器箱
CN112153502A (zh) * 2020-08-27 2020-12-29 瑞声新能源发展(常州)有限公司科教城分公司 扬声器箱
CN112153504A (zh) * 2020-08-27 2020-12-29 瑞声新能源发展(常州)有限公司科教城分公司 扬声器箱
CN112004169B (zh) * 2020-08-27 2022-07-08 瑞声新能源发展(常州)有限公司科教城分公司 扬声器箱
CN213462138U (zh) * 2020-09-30 2021-06-15 瑞声科技(新加坡)有限公司 扬声器箱
CN112261552B (zh) * 2020-09-30 2021-12-24 瑞声新能源发展(常州)有限公司科教城分公司 发声器件、扬声器箱及一体热压成型方法
CN213906843U (zh) * 2020-12-18 2021-08-06 瑞声光电科技(常州)有限公司 扬声器箱
CN217116309U (zh) 2022-03-30 2022-08-02 瑞声光电科技(常州)有限公司 扬声器箱
CN115396762A (zh) * 2022-08-26 2022-11-25 歌尔股份有限公司 发声模组和电子设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206433153U (zh) * 2017-01-12 2017-08-22 瑞声科技(新加坡)有限公司 扬声器箱
CN208285529U (zh) * 2018-06-27 2018-12-25 歌尔科技有限公司 发声装置及电子设备
CN109495826A (zh) * 2018-12-31 2019-03-19 瑞声声学科技(深圳)有限公司 扬声器箱
CN209731559U (zh) * 2019-05-06 2019-12-03 歌尔科技有限公司 一种扬声器模组

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206433153U (zh) * 2017-01-12 2017-08-22 瑞声科技(新加坡)有限公司 扬声器箱
CN208285529U (zh) * 2018-06-27 2018-12-25 歌尔科技有限公司 发声装置及电子设备
CN109495826A (zh) * 2018-12-31 2019-03-19 瑞声声学科技(深圳)有限公司 扬声器箱
CN209731559U (zh) * 2019-05-06 2019-12-03 歌尔科技有限公司 一种扬声器模组

Also Published As

Publication number Publication date
CN211321500U (zh) 2020-08-21

Similar Documents

Publication Publication Date Title
WO2021138954A1 (zh) 扬声器箱
WO2021164080A1 (zh) 扬声器箱
WO2021138952A1 (zh) 扬声器箱
WO2021138950A1 (zh) 扬声器箱
CN112004168B (zh) 扬声器箱
WO2021138953A1 (zh) 扬声器箱
WO2022041438A1 (zh) 扬声器箱
WO2021138951A1 (zh) 扬声器箱
WO2021253538A1 (zh) 扬声器箱
CN111641895B (zh) 扬声器箱
WO2021237833A1 (zh) 发声器件
WO2021237837A1 (zh) 发声器件
WO2020134341A1 (zh) 移动终端
WO2021253539A1 (zh) 扬声器箱
WO2022007023A1 (zh) 扬声器箱
CN110366073B (zh) 发声器件
WO2021237795A1 (zh) 发声器件
WO2021237790A1 (zh) 发声器件
WO2022007025A1 (zh) 扬声器箱
WO2022006791A1 (zh) 扬声器箱
WO2021237788A1 (zh) 发声器件
CN212628259U (zh) 扬声器箱
WO2021253537A1 (zh) 扬声器箱
CN212628260U (zh) 扬声器箱
WO2021253535A1 (zh) 扬声器箱

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20911728

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20911728

Country of ref document: EP

Kind code of ref document: A1