WO2022006953A1 - 扬声器箱 - Google Patents

扬声器箱 Download PDF

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Publication number
WO2022006953A1
WO2022006953A1 PCT/CN2020/102382 CN2020102382W WO2022006953A1 WO 2022006953 A1 WO2022006953 A1 WO 2022006953A1 CN 2020102382 W CN2020102382 W CN 2020102382W WO 2022006953 A1 WO2022006953 A1 WO 2022006953A1
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WO
WIPO (PCT)
Prior art keywords
sound
cavity
absorbing cavity
casing
absorbing
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Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2020/102382
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English (en)
French (fr)
Inventor
丁健华
吴树文
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AAC Technologies Holdings Shenzhen Co Ltd
AAC Technologies Pte Ltd
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AAC Acoustic Technologies Shenzhen Co Ltd
AAC Technologies Pte Ltd
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Application filed by AAC Acoustic Technologies Shenzhen Co Ltd, AAC Technologies Pte Ltd filed Critical AAC Acoustic Technologies Shenzhen Co Ltd
Publication of WO2022006953A1 publication Critical patent/WO2022006953A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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; ELECTRIC HEARING AIDS; 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; ELECTRIC HEARING AIDS; 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 speaker in the prior art is glued with the shell of the speaker box through a plastic ring, and then the isolation net and the plastic ring are glued to cover the speaker monomer, forming a fully filled monomer isolation solution, thereby reducing the speaker resonance frequency F0, Improve the distortion and improve the sound quality of the speaker box, but 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 in which the air-permeable isolation net is directly connected to the side of the casing to form an isolation solution for the speaker unit.
  • a speaker box includes a housing with a housing space, and a speaker unit that is housed and fixed in the housing, and the speaker unit divides the housing space into a front acoustic cavity and a rear acoustic cavity , one end of the casing is open, and the speaker box further comprises a convex ring fixed on the casing on one side of the opening, sandwiched and fixed between the convex ring and the casing and covering the opening
  • the air-permeable isolation net, and a sound-absorbing cavity cover that is covered on the side of the convex ring away from the breathable isolation net and is enclosed with the breathable isolation net to form a sound-absorbing cavity, and the sound-absorbing cavity is provided with a sound-absorbing material
  • the shell and the sound-absorbing cavity cover are arranged at intervals on both sides of the convex ring; the rear sound cavity is communicated with the sound-absorbing cavity through the air-permeable isolation net.
  • the casing and the sound absorbing cavity cover are arranged side by side and the orthographic projections of the casing and the sound absorbing cavity cover do not overlap.
  • the housing includes a top wall, a side wall extending from the periphery of the top wall, and a bottom wall covering the side wall and enclosing the top wall to form the receiving space; the opening is opened on the side wall.
  • the housing includes a support wall extending from the top wall to the bottom wall, the support wall and the air-permeable isolation net are arranged at intervals; the speaker unit is supported and fixed on the support wall and is The front acoustic cavity is formed spaced from the top wall.
  • the side wall of the casing adjacent to or opposite to the opening forms a sound outlet channel connecting the front acoustic cavity and the outside world
  • the speaker box further includes covering the sound outlet channel away from the outside.
  • a through hole is formed through the side wall of the casing adjacent to or opposite to the opening, and the speaker box further includes a circuit for electrically connecting the speaker unit and an external circuit through the through hole plate.
  • the breathable isolation mesh is injection-molded or bonded to the raised ring.
  • a filling hole is opened on the sound-absorbing cavity cover, the filling hole is communicated with the sound-absorbing cavity, and the sound-absorbing material is filled into the sound-absorbing cavity through the filling hole.
  • the sound-absorbing cavity cover is provided with a leak hole penetrating the sound-absorbing cavity cover and a breathable mesh cloth attached to the side of the sound-absorbing cavity cover away from the sound-absorbing cavity and covering the leak hole;
  • the The speaker unit is provided with a leaking part, and the leaking part is communicated with the leaking hole through the rear acoustic cavity, the air-permeable isolation net and the sound-absorbing cavity in sequence.
  • the speaker unit includes a basin frame, a vibration system and a magnetic circuit system are fixedly supported on opposite sides of the basin frame, and the magnetic circuit system includes a magnetic bowl, and the magnetic bowl is spaced from the basin frame.
  • the leakage portion is provided to be formed.
  • the beneficial effect of the present application is that: by setting an opening at one end of the shell, and directly abutting the air-permeable isolation net on the opening through the convex ring, the isolation of the single unit is realized, on the one hand, the overall structure of the speaker box is simplified, and on the other hand, the Compared with the existing isolation scheme of the speaker unit, the number of scattered parts is reduced, the assembly is more convenient, and the installation efficiency of the speaker box is improved.
  • FIG. 1 is a schematic diagram of an embodiment of a speaker box of the application
  • Fig. 2 is an exploded view of the loudspeaker box in Fig. 1;
  • Fig. 3 is the schematic diagram of the sound-absorbing cavity cover in Fig. 1;
  • Fig. 4 is the top view of the novel loudspeaker box in Fig. 1;
  • Fig. 5 is the sectional view at A-A place in Fig. 4;
  • Fig. 6 is the enlarged view at B place in Fig. 5;
  • FIG. 7 is a schematic diagram of another viewing angle of the loudspeaker in FIG. 1;
  • Fig. 8 is a sectional view at C-C in Fig. 7;
  • FIG. 10 is an enlarged view of D in FIG. 9 .
  • the speaker box includes a housing 1 having a housing space 11 , and a speaker unit 2 that is housed and fixed in the housing 1 , and the speaker unit 2 divides the housing space 11 into a front acoustic cavity 111 and a rear acoustic cavity 112
  • One end of the casing 1 is provided with an opening 12, and the speaker box also includes a convex ring 13 fixed to the casing 1 on one side of the opening 12, and a breathable isolation net fixed between the convex ring 13 and the casing 1 and covering the opening 12.
  • the connection structure of the single unit 2 is simpler, and compared with the isolation scheme of the speaker unit 2 in the prior art, the number of movable parts that need to be connected during the assembly of the speaker box is reduced, and the air-permeable isolation net 3 and the housing 1 are simplified.
  • connection process between them improves the assembly efficiency of the isolation scheme of the speaker unit 2 , and at the same time, the arrangement of the convex ring 13 enables the operator to connect the air-permeable isolation net 3 to the housing 1 more conveniently.
  • the shell 1 and the sound-absorbing cavity cover 5 are arranged on both sides of the convex ring 13 at intervals;
  • the shell 1 and the sound-absorbing cavity cover 5 are arranged side by side, and the orthographic projections of the shell 1 and the sound-absorbing cavity cover 5 do not overlap, thereby reducing the thickness of the speaker box to a certain extent, so that the speaker box can be suitable for more Use scenarios in many small spaces.
  • the casing 1 includes a top wall 14, a side wall 15 extending from the periphery of the top wall 14, and a bottom wall 16 covering the side wall 15 and enclosing the top wall 14 to form a receiving space 11; the opening 12 on the casing 1 is opened in the side wall 15.
  • the housing 1 includes a support arm 17 extending from the top wall 14 to the bottom wall 16 , the support arm 17 is spaced apart from the air-permeable isolation net 3 , and the speaker unit 2 is supported and fixed to the support arm 17 and is spaced from the top wall 14 to form a front Acoustic cavity 111.
  • the support arm 17 and the housing 1 may be an integral structure of injection molding or die casting, thereby reducing the number of movable parts in the housing 1 and facilitating the installation operation of the speaker box.
  • the side wall 15 of the casing 1 adjacent to or opposite to the opening 12 forms a sound outlet channel 18 connecting the front acoustic cavity 111 and the outside world.
  • a through hole 19 is formed through the side wall 15 of the casing 1 adjacent to or opposite to the opening 12.
  • the speaker box also includes a circuit board 7 that electrically connects the speaker unit 2 and the external circuit through the through hole 19.
  • the arrangement of the circuit board 7 is relatively Compared with the traditional connection method using cables, the electrical connection of the speaker unit 2 can be facilitated, and at the same time, the connection structure is simple and orderly, convenient for mass production, and the consistency of product quality is guaranteed.
  • the ventilating isolation net 3 is injection-molded or bonded on the raised ring 13 to ensure the reliability of the connection between the insulating net 3 and the raised ring 13, and the breathable insulating net and the raised ring can be assembled together at the opening of the casing as a whole.
  • the sound-absorbing cavity cover 5 is provided with a filling hole 51 , the filling hole 51 communicates with the sound-absorbing cavity 4 , and the sound-absorbing material is filled into the sound-absorbing cavity 4 through the filling hole 51 .
  • the cover plate 53 can be attached to the outside of the filling hole 51 to prevent the sound-absorbing material from leaking from the filling hole 51 .
  • the sound-absorbing cavity cover 5 is also provided with a leakage hole 52 that penetrates the sound-absorbing cavity cover 5.
  • the diameter of the leakage hole 52 is significantly smaller than the diameter of the filling hole 51, and is attached to the sound-absorbing cavity cover 5 away from the sound-absorbing cavity 4 and covers the leakage hole. 52 of breathable mesh 54.
  • the speaker unit 2 is also provided with a leaking portion 21 , which communicates with the leak hole 52 through the rear acoustic cavity 112 , the air-permeable isolation net 3 and the sound absorbing cavity 4 in sequence, so as to balance the sound pressure of the rear acoustic cavity 112 of the speaker unit 2 .
  • the speaker unit 2 includes a basin frame 22, a vibration system 8 and a magnetic circuit system 9 fixedly supported on opposite sides of the basin frame 22, and the magnetic circuit system 9 includes a magnetic bowl 91.
  • the magnetic bowl 91 and the basin frame 22 are spaced apart to form a leakage portion 21. .
  • the bottom wall 16 of the housing 1 is in the shape of a cover as a whole, and the cross section of the bottom wall 16 that matches the side wall 15 is an inverted triangular structure 161.
  • the triangular structure 1661 is inclined inwardly.
  • the convex ring is fixed on the casing on the side where the opening is provided, and a ventilating isolation net is arranged between the convex ring and the shell, and the side of the convex ring facing away from the ventilating isolation net is covered.
  • the sound-absorbing cavity cover is set to realize the isolation of the single unit.
  • the overall structure of the speaker box is simplified. The installation efficiency of the speaker box can be improved.

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

Abstract

本申请提供了一种扬声器箱，包括具有收容空间的壳体、收容固定在壳体内的扬声器单体，扬声器单体将收容空间分隔为前声腔和后声腔，壳体一端开口，扬声器箱包括固定于壳体位于开口一侧的凸环、夹设固定于凸环与壳体之间并覆盖开口的透气隔离网，盖设于凸环背离透气隔离网的一侧并与透气隔离网围合形成吸音腔的吸音腔盖；壳体和所述吸音腔盖间隔设置于凸环两侧；后声腔通过透气隔离网与吸音腔连通。通过在壳体一端设置开口，凸环将透气隔离网直接抵接在开口上，实现单体的隔离，一方面使得扬声器箱的整体结构更加简化，另一方面相较于现有的扬声器单体的隔离方案，减少了零散部件的数量，使装配更加便捷，提高扬声器箱的安装效率。

Description

扬声器箱 技术领域
本申请涉及声学器件技术领域，尤其涉及一种扬声器箱。
 背景技术
现有技术中的扬声器通过塑料环与扬声器箱的壳体胶合，之后再将隔离网与塑料环胶合以覆盖扬声器单体，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。
 技术问题
因此，有必要提供一种在扬声器单体隔离方案中能够提升装配效率的扬声器箱。
 技术解决方案
本申请的目的在于提供一种透气隔离网直接连接在壳体的侧部形成扬声器单体隔离方案的扬声器箱。
本申请的技术方案如下：一种扬声器箱，包括具有收容空间的壳体，以及收容固定在所述壳体内的扬声器单体，所述扬声器单体将所述收容空间分隔为前声腔和后声腔，所述壳体一端开口，所述扬声器箱还包括固定于所述壳体位于所述开口一侧的凸环、夹设固定于所述凸环与所述壳体之间并覆盖所述开口的透气隔离网，以及盖设于所述凸环背离所述透气隔离网的一侧并与所述透气隔离网围合形成吸音腔的吸音腔盖，所述吸音腔内设有吸音材料；所述壳体和所述吸音腔盖间隔设置于所述凸环两侧；所述后声腔通过所述透气隔离网与所述吸音腔连通。
可选地，所述壳体与所述吸音腔盖并排设置且所述壳体与所述吸音腔盖的正投影不重叠。
可选地，所述壳体包括顶壁、自所述顶壁周缘延伸的侧壁以及盖设于所述侧壁并与所述顶壁围合形成所述收容空间的底壁；所述开口开设于所述侧壁。
可选地，所述壳体包括自所述顶壁向所述底壁延伸的支撑壁，所述支撑壁与所述透气隔离网间隔设置；所述扬声器单体支撑固定于所述支撑壁并与所述顶壁间隔形成所述前声腔。
可选地，所述壳体的与所述开口相邻或相对的所述侧壁贯穿形成连通所述前声腔与外界的出声通道，所述扬声器箱还包括覆盖所述出声通道远离所述前声腔的一侧的阻尼件。
可选地，所述壳体的与所述开口相邻或相对的所述侧壁贯穿形成通孔，所述扬声器箱还包括经所述通孔电连接所述扬声器单体与外部电路的电路板。
可选地，所述透气隔离网注塑或粘接于所述凸环。
可选地，所述吸音腔盖上开设有灌装孔，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。  
可选地，所述吸音腔盖上开设有贯穿所述吸音腔盖的泄露孔以及贴设于所述吸音腔盖背离所述吸音腔一侧并覆盖所述泄露孔的透气网布；所述扬声器单体设有泄露部，所述泄露部依次经所述后声腔、所述透气隔离网和所述吸音腔与所述泄露孔连通。
可选地，所述扬声器单体包括盆架，固定支撑于所述盆架相对两侧的振动系统和磁路系统，所述磁路系统包括磁碗，所述磁碗与所述盆架间隔设置形成所述泄露部。
 有益效果
本申请的有益效果在于：通过在壳体一端设置开口，通过凸环将透气隔离网直接抵接在开口上，实现单体的隔离，一方面使得扬声器箱的整体结构更加简化，另一方面相较于现有的扬声器单体的隔离方案，减少了零散部件的数量，使装配更加便捷，提高扬声器箱的安装效率。
 附图说明
图1为本申请扬声器箱一种实施方式的示意图；
图2为图1中扬声器箱的爆炸图；
图3为图1中吸音腔盖的示意图；
图4为图1中新型扬声器箱的俯视图；
图5为图4中A-A处的剖视图；
图6为图5中B处的放大图；
图7为图1中扬声器另一视角的示意图；
图8为图7中C-C处的剖视图；
图9为壳体的底壁的示意图；
图10为图9中D处的放大图。
 本发明的实施方式
下面结合附图和实施方式对本申请作进一步说明。
参考图1至图8，扬声器箱包括具有收容空间11的壳体1，以及收容固定在壳体1内的扬声器单体2，扬声器单体2将收容空间11分隔为前声腔111和后声腔112，壳体1一端设有开口12，扬声器箱还包括固定于壳体1位于开口12一侧的凸环13，夹设固定于凸环13与壳体1之间并覆盖开口12的透气隔离网3，以及盖设于凸环13背离透气隔离网3的一侧并与透气隔离网3围合形成吸音腔4的吸音腔盖5，吸音腔4内设有吸音材料（图中未示），吸音材料用于降低扬声器的谐振频率F0，改善失真，提升扬声器箱的发声品质，同时由于将透气隔离网3直接盖设在凸环13与壳体1之间并覆盖在开口12上，使得扬声器单体2连接结构更加简单，且相较于现有技术中的扬声器单体2的隔离方案，减少了扬声器箱在装配时需要连接的活动零部件数量，简化了透气隔离网3与壳体1之间的连接工艺，提升了扬声器单体2隔离方案的装配效率，同时凸环13的设置使得操作人员能够更加方便地将透气隔离网3连接在壳体1上。壳体1和吸音腔盖5间隔设置于凸环13两侧；后声腔112通过透气隔离网3与吸音腔4连通。
优选地，壳体1与吸音腔盖5并排设置，且壳体1与吸音腔盖5的正投影不重叠，从而在一定程度上缩小了扬声器箱的厚度尺寸，使得扬声箱能够适用于更多的狭小空间的使用场景。
壳体1包括顶壁14、自顶壁14周缘延伸的侧壁15以及盖设于侧壁15并与顶壁14围合形成收容空间11的底壁16；壳体1上的开口12开设于侧壁15。
优选地，壳体1包括自顶壁14向底壁16延伸的支撑臂17，支撑臂17与透气隔离网3间隔设置，扬声器单体2支撑固定于支撑臂17并与顶壁14间隔形成前声腔111。进一步地，支撑臂17与壳体1可以是注塑或压铸一体成型结构，从而减少壳体1中活动零部件的数量，便于扬声器箱的安装操作。
壳体1的与开口12相邻或相对的侧壁15贯穿形成连通前声腔111与外界的出声通道18，扬声器箱还包括覆盖出声通道18且远离前声腔的一侧的阻尼件6。
壳体1的与开口12相邻或相对的侧壁15贯穿形成通孔19，扬声器箱还包括经通孔19电连接扬声器单体2与外部电路的电路板7，电路板7的设置相较于传统的使用电缆进行连接的方式，能够方便扬声器单体2的电连接，同时也使得连接结构简单有序便于批量化生产，保障产品品质的一致性。
透气隔离网3注塑或粘接于凸环13上，以保障隔离网3与凸环13连接的可靠性，并且可以将透气隔离网和凸环作为一个整体一并装配于壳体的开口处。
吸音腔盖5上开设有灌装孔51，灌装孔51与吸音腔4连通，吸音材料经灌装孔51填充至吸音腔4内。优选地，吸音腔4内灌装完成吸音材料后可将盖板53贴设在灌装孔51的外部，以防止吸音材料从灌装孔51泄露。
吸音腔盖5上还开设有贯穿吸音腔盖5的泄露孔52，泄露孔52的直径明显小于灌装孔51的直径，以及贴设于吸音腔盖5背离吸音腔4一侧并覆盖泄露孔52的透气网布54。在扬声器单体2还上设有泄露部21，泄露部21依次经后声腔112、透气隔离网3和吸音腔4与泄露孔52连通，从而平衡扬声器单体2后声腔112的声压。
扬声器单体2包括盆架22，固定支撑于盆架22相对两侧的振动系统8和磁路系统9，磁路系统9包括磁碗91，磁碗91与盆架22间隔设置形成泄露部21。
参考图9和图10，壳体1的底壁16整体呈盖状，底壁16的与侧壁15相配合的截面为倒置的三角形结构161，优选地，三角形结构1661向内倾斜设置，一方面在将底壁16与壳体1进行连接的过程中，操作人员能够方便地将底壁16扣接在壳体1的侧壁15上，另一方面，三角形结构141的设置使得顶壁14与壳体1之间能够具有更牢固的结合以及更好的密封性能。
综上，通过在壳体上设置开口，将凸环固定在设置开口一侧的壳体上，并在凸环与壳体之间设置透气隔离网，在凸环背离透气隔离网的一侧盖设吸音腔盖，实现单体的隔离，一方面使得扬声器箱的整体结构更加简化，另一方面相较于现有的扬声器单体的隔离方案，减少了零散部件的数量，使装配更加便捷，能够提高扬声器箱的安装效率。
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。

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，以及收容固定在所述壳体内的扬声器单体，所述扬声器单体将所述收容空间分隔为前声腔和后声腔，所述壳体一端开口，所述扬声器箱还包括固定于所述壳体位于所述开口一侧的凸环、夹设固定于所述凸环与所述壳体之间并覆盖所述开口的透气隔离网，以及盖设于所述凸环背离所述透气隔离网的一侧并与所述透气隔离网围合形成吸音腔的吸音腔盖，所述吸音腔内设有吸音材料；所述壳体和所述吸音腔盖间隔设置于所述凸环两侧；所述后声腔通过所述透气隔离网与所述吸音腔连通。
  2. 根据权利要求1所述的扬声器箱，其特征在于：所述壳体与所述吸音腔盖并排设置且所述壳体与所述吸音腔盖的正投影不重叠。
  3. 根据权利要求2所述的扬声器箱，其特征在于：所述壳体包括顶壁、自所述顶壁周缘延伸的侧壁以及盖设于所述侧壁并与所述顶壁围合形成所述收容空间的底壁；所述开口开设于所述侧壁。
  4. 根据权利要求3所述的扬声器箱，其特征在于：所述壳体包括自所述顶壁向所述底壁延伸的支撑壁，所述支撑壁与所述透气隔离网间隔设置；所述扬声器单体支撑固定于所述支撑壁并与所述顶壁间隔形成所述前声腔。
  5. 根据权利要求4所述的扬声器箱，其特征在于：所述壳体的与所述开口相邻或相对的所述侧壁贯穿形成连通所述前声腔与外界的出声通道，所述扬声器箱还包括覆盖所述出声通道远离所述前声腔的一侧的阻尼件。
  6. 根据权利要求4所述的扬声器箱，其特征在于：所述壳体的与所述开口相邻或相对的所述侧壁贯穿形成通孔，所述扬声器箱还包括经所述通孔电连接所述扬声器单体与外部电路的电路板。
  7. 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或粘接于所述凸环。
  8. 根据权利要求1所述的扬声器箱，其特征在于，所述吸音腔盖上开设有灌装孔，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。
  9. 根据权利要求1所述的扬声器箱，其特征在于，所述吸音腔盖上开设有贯穿所述吸音腔盖的泄露孔以及贴设于所述吸音腔盖背离所述吸音腔一侧并覆盖所述泄露孔的透气网布；所述扬声器单体设有泄露部，所述泄露部依次经所述后声腔、所述透气隔离网和所述吸音腔与所述泄露孔连通。
  10. 根据权利要求9所述的扬声器箱，其特征在于，所述扬声器单体包括盆架，固定支撑于所述盆架相对两侧的振动系统和磁路系统，所述磁路系统包括磁碗，所述磁碗与所述盆架间隔设置形成所述泄露部。
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