WO2022041432A1 - Loudspeaker box - Google Patents

Loudspeaker box Download PDF

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Publication number
WO2022041432A1
WO2022041432A1 PCT/CN2020/123383 CN2020123383W WO2022041432A1 WO 2022041432 A1 WO2022041432 A1 WO 2022041432A1 CN 2020123383 W CN2020123383 W CN 2020123383W WO 2022041432 A1 WO2022041432 A1 WO 2022041432A1
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WO
WIPO (PCT)
Prior art keywords
bracket
sound
side wall
front cover
fixed
Prior art date
Application number
PCT/CN2020/123383
Other languages
French (fr)
Chinese (zh)
Inventor
吴军
印兆宇
魏威
刘忠原
Original Assignee
瑞声声学科技(深圳)有限公司
瑞声光电科技(常州)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, 瑞声光电科技(常州)有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Publication of WO2022041432A1 publication Critical patent/WO2022041432A1/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

Definitions

  • the invention relates to the field of electro-acoustic conversion, in particular to a speaker box used in portable mobile electronic products.
  • Speaker boxes are widely used in portable mobile electronic products, such as mobile phones, to realize the conversion of audio signals into sound playback.
  • the speaker box has high loudness and good low-frequency sound effect.
  • the speaker box of the related art includes a front cover, a rear cover that is covered on the front cover and jointly encloses a receiving space, and a sound-emitting unit received in the receiving space, and the sound-emitting unit divides the receiving space into Anterior and posterior chambers.
  • the front cover and the rear cover of the speaker box of the related art are injection-molded, and the sound-generating unit is sealed by ultrasonic welding.
  • Ultrasonic welding requires more volume, thus limiting the volume design of the front cavity and the rear cavity. This in turn limits the acoustic performance.
  • the purpose of the present invention is to provide a loudspeaker box with large cavity volume and good acoustic performance.
  • the present invention provides a speaker box, which includes a housing and a sound-generating unit fixedly accommodated in the housing, the sound-generating unit includes a diaphragm for vibrating and producing sound;
  • the housing is Made of metal material, the housing includes a first bracket and a front cover and a rear cover that are respectively covered on opposite sides of the first bracket along the vibration direction of the vibrating membrane, and the first bracket is provided with a pass through the first bracket.
  • the front cover includes a front cover arranged opposite to the sound-generating unit a cover plate and a front cover side wall extending from the periphery of the front cover plate to the first bracket and fixed to the first bracket, and the front cover side wall is provided with a sound outlet passing through it;
  • the front cover, the sounding unit and the first bracket together form a front sound cavity, and the sound outlet communicates the front sound cavity with the outside world;
  • the sounding unit, the first branch and the The rear cover together forms the rear acoustic cavity.
  • the back cover includes a back cover plate opposite to the sounding unit at intervals, and a back cover side wall bent and extended from a peripheral edge of the back cover plate, the back cover side wall abuts against the first a bracket and form a fixed seal.
  • the first bracket includes an annular bracket body, an annular bracket side wall bent and extended from the outer peripheral edge of the bracket body toward the rear cover, and an inner peripheral edge of the bracket body
  • the bracket fixing part which is bent and extended in the direction of the front cover and surrounds the through hole, and the end of the side wall of the bracket facing the sound outlet and close to the rear cover is far from the sound
  • the bracket extension part of the single body is bent and extended, the sounding monomer is supported on the bracket fixing part and forms a fixed seal, the front cover side wall is supported and fixed on the bracket body, and the front cover side wall is provided with a fixed seal.
  • One side of the sound outlet is supported and fixed on the extension part of the bracket; the side wall of the rear cover is supported and fixed on the side wall of the bracket, and the side wall of the rear cover is opposite to the side wall of the front cover and is provided with the outlet.
  • a part of one side of the sound port is supported and fixed to the bracket extension part; the front cover side wall and the rear cover are fixed to the bracket side wall and the bracket extension part respectively to form a sealing structure.
  • the speaker box further includes a second bracket and a ventilating spacer located in the rear acoustic cavity, the second bracket is disposed around the periphery of the sound-generating unit, and the second bracket includes a second bracket located in the sound-generating unit.
  • the first section is arranged opposite to the bracket extension;
  • the second bracket is fixed to the bracket body, and the second section and the third section are respectively abutted and fixed to the bracket side wall;
  • the air-permeable spacer is fixed to the bracket body and the bracket extension and separates the sound-generating unit from the rear acoustic cavity.
  • the first bracket and the second bracket are integrally injection-molded.
  • a side of the second bracket away from the front cover is flush with a side of the bracket extension portion away from the front cover.
  • the air-permeable spacer includes a spacer body that is spaced apart from the back cover and is attached to the sound-generating unit, and an spacer extension that is bent and extended from the periphery of the spacer body toward the bracket. and a spacer fixing portion bent and extended from one end of the spacer extension portion away from the spacer body; the spacer extension portion is spaced from the side wall of the front cover, and the spacer fixing portion is attached to the spacer at the same time.
  • the ventilation spacer, the first bracket, the second bracket and the The back cover together forms a powder filling space, and the powder filling space is used for filling the sound-absorbing material.
  • the speaker box further includes a conductive member for connecting the sound-emitting unit with an external electrical signal
  • the conductive member includes a conductive member body supported and fixed on one end of the second section close to the back cover, and the conductive member is The two ends of the conductive part body extend toward the sound-generating unit and are fixed and electrically connected to the connecting arm; the side wall of the cover and the extension arm of the side wall of the bracket; the side of the second segment close to the rear cover is recessed to form a receiving groove, and the conductive member body is arranged in the receiving groove and makes the conductive member body
  • the second bracket is flush with the side of the second bracket close to the back cover, and the spacer extension portion is simultaneously press-fitted and fixed to the conductive member body and the second bracket.
  • the extension arm penetrates through the side wall of the front cover and the side wall of the rear cover at the same time.
  • the front cover, the rear cover and the first bracket of the casing are all made of metal materials
  • the first bracket is provided with a through hole
  • the sound generating unit is provided with a diaphragm of the diaphragm.
  • One side faces the through hole and is supported and fixed on the first bracket
  • the front cover and the rear cover are respectively covered on opposite sides of the first bracket
  • the side wall of the front cover of the front cover is provided with a sound outlet to form a side sound structure
  • the metal first bracket is combined with the metal rear cover
  • the metal rear cover is combined with the metal first bracket.
  • the shell On the premise of ensuring the structural strength of the shell, it can be designed to be as good as the all-plastic shell structure. Thinner, which greatly increases the volume of the cavity in the casing, effectively increases the volume of the rear acoustic cavity enclosed by the sounding unit and the casing, thereby improving the acoustic performance of the speaker box, especially Low frequency acoustic performance.
  • Fig. 1 is the three-dimensional structure schematic diagram of the speaker box of the present invention
  • Fig. 2 is the partial three-dimensional structure exploded schematic diagram of the speaker box of the present invention
  • Fig. 3 is a sectional view along line A-A in Fig. 1;
  • FIG. 4 is an enlarged view of the part shown in B in FIG. 3 .
  • the present invention provides a speaker box 100 , which includes a casing 1 and a sounding unit 2 having a diaphragm 21 fixedly accommodated in the casing 1 .
  • the casing 1 is made of metal material.
  • the housing 1 includes a front cover 11 , a rear cover 12 and a first bracket 13 .
  • the front cover 11 and the rear cover 12 are respectively covered on opposite sides of the first bracket 13 along the vibration direction of the diaphragm 21 .
  • the front cover 11 includes a front cover plate 111 disposed opposite to the sounding unit 2 at a distance, and a front cover plate 111 is bent and extended in the direction of the first bracket 13 from the periphery of the front cover plate 111 and is fixed to the The side wall 112 of the front cover of the first bracket 13 is described.
  • the front cover plate 111 and the front cover side wall 112 can be separated into two parts, or can be made in one piece. In this embodiment, the front cover plate 111 and the front cover side wall 112 are integrally formed.
  • the sounding unit 2 , the first bracket 13 and the front cover 11 together form a front sound cavity 101 .
  • the diaphragm 21 is accommodated in the front acoustic cavity 101 , and the front cover side wall 112 is provided with a sound outlet 10 extending therethrough, and the sound outlet 10 communicates the front acoustic cavity 101 with the outside world.
  • This structure The side-emitting structure of the speaker box 100 is formed, in order to improve the air smoothness between the side-emitting sound and the outside world, the audio quality of the speaker box 100 is improved.
  • the side of the front cover side wall 112 where the sound outlet 10 is provided is flush with the rear cover 12 connected thereto. This arrangement makes the speaker box 100 easy to assemble and has a beautiful appearance.
  • the back cover 12 includes a back cover plate 121 opposite to the sounding unit 2 at a distance and a back cover side wall 122 bent and extended from the periphery of the back cover plate 121 .
  • the back cover side wall 122 abuts against the first bracket 13 and forms a fixed seal.
  • the sound generating unit 2 , the first bracket 13 and the rear cover 12 together form a closed rear sound cavity 102 .
  • the rear cover 12 is fixed by welding with the first bracket 13
  • the side wall 11 of the front cover is fixed by welding with the first bracket 13
  • the front cover 11 and the rear cover 12 are relatively
  • the plastic structure in the technology can be designed to be thinner, and the fixing strength is more reliable.
  • the combined structure of the front cover 11 , the rear cover 12 and the first bracket 13 because the front cover 11 and the rear cover 12 are made of metal materials, the first bracket 13 made of metal materials is used. It is fixed with the rear cover 11 to support and fix the sounding unit 2 and form the rear sound cavity 102 , and then the first bracket 13 made of metal material is fixed with the front cover 11 to form the front sound cavity 101 , in order to ensure the structural strength of the casing 1
  • the all-plastic shell structure it can not only be designed to be thinner, but also effectively assemble the sound-emitting unit 2, thereby greatly increasing the volume of the cavity in the shell 1 and effectively increasing the sound output.
  • the volume of the rear acoustic cavity 10 enclosed by the single unit 2 and the housing 1 further improves the acoustic performance of the speaker box 100 , especially the low-frequency acoustic performance.
  • the first bracket 13 includes a through hole 130 extending therethrough, an annular bracket body 131 , and an annular bracket body 131 bent and extended from the outer periphery of the bracket body 131 toward the rear cover 12 .
  • One side of the sound port 10 is away from the bracket extension portion 134 that is bent and extended from the sound generating unit 2 .
  • the side of the sound generating unit 2 with the diaphragm 21 faces the through hole 130 and is supported and fixed to the first bracket 130 . That is to say, the first bracket 13 is sealed and fixed with the sounding unit 2 .
  • the front cover side wall 112 is supported and fixed to the bracket body 131 , and the side of the front cover side wall 112 with the sound outlet 10 is supported and fixed to the bracket extension 134 ; the rear cover side wall 122 is supported and fixed to the bracket side wall 132 , and the portion of the rear cover side wall 122 facing the front cover side wall 112 where the sound outlet 10 is provided is supported and fixed to the bracket extension portion 134 .
  • This structure makes a partial dislocation bridge formed when the front cover 11 and the rear cover 12 are connected by the first bracket 13 , so that the volume of the rear acoustic cavity 102 is increased and the design of the rear acoustic cavity 102 is more flexible.
  • the side of the front cover side wall 112 close to the rear cover 12 is provided with an escape groove 1120 recessed in a direction away from the bracket body 131 .
  • the bracket body 131 and the bracket side wall 132 are accommodated and fixed in the escape groove 1120 .
  • the side wall of the front cover 112 with the sound outlet 10 is covered and fixed to the bracket extension 134 .
  • This structure utilizes the height difference between the bracket extension portion 134 and the bracket body 131, and sets the avoidance groove 1120 through the front cover side wall 112 for assembly, which is beneficial to reduce the thickness of the speaker box 100 and improve the miniaturization design. Okay.
  • the diaphragm 21 of the sound-generating unit 2 is used for vibrating and sounding.
  • the vibrating membrane 21 includes a vibrating portion 211 , a ring portion 212 that is bent and extended from the periphery of the vibrating portion 211 , and a ring portion 212 that is bent and extended in a direction away from the vibrating portion 211 .
  • Diaphragm fixing part 213 The sounding unit 2 is supported on the bracket fixing part 133 and forms a fixed seal.
  • the bracket fixing part 133 is fixed on the diaphragm fixing part 213, so that the first bracket 13, the The membrane 21 , the first bracket 13 and the front cover 11 together form the front acoustic cavity 101 , which makes the speaker box 100 easy to assemble and has high reliability.
  • the speaker box 100 further includes a second bracket 3 located in the rear acoustic cavity 102 .
  • the second bracket 3 is made of plastic material.
  • the first bracket 13 and the second bracket 3 can be separately manufactured and fixed together. Of course, it is not limited to this.
  • the first bracket 13 and the second bracket 3 are integrally injection-molded. This structure makes the speaker enclosure 100 simpler to manufacture and easier to assemble.
  • the second bracket 3 is located in the rear acoustic cavity 102 .
  • the second bracket 3 is fixed to the first bracket 13 .
  • the second bracket 3 surrounds the peripheral side of the sounding unit 2 .
  • the second bracket 3 includes a first section 31 located on the side of the sound-generating unit 2 away from the sound outlet 10 , and opposite ends of the first section 31 are respectively located along the sound-generating unit 2 toward each other. Describe the second section 32 and the third section 33 that are bent and extended in the direction of the sound port 10 .
  • the second bracket 3 is fixed to the bracket body 131 and the second section 32 and the third section 33 are respectively abutted and fixed to the bracket side wall 132 .
  • the first segment 31 is disposed opposite to the bracket extension portion 134 .
  • the front cover side wall 112 and the rear cover 12 are respectively fixed to the bracket side wall 132 and the bracket extension portion 134 to form a sealing structure.
  • the speaker box 100 further includes a ventilating spacer 4 located in the rear acoustic cavity 102 .
  • the air-permeable spacer 4 is fixed to the bracket body 131 and the bracket extension portion 134 and separates the sound-generating unit 2 from the rear acoustic cavity 102 , so that the rear acoustic cavity 102 can be filled with sound-absorbing materials.
  • the side of the second bracket 3 away from the front cover 11 is flush with the side of the bracket extension 134 away from the front cover 11 . That is to say, the side of the first segment 31 away from the front cover 11 , the side of the second segment 32 away from the front cover 11 , and the side of the third segment 33 away from the front cover 11 . Both sides are flush with the side of the bracket extension portion 134 away from the front cover 11 .
  • This structure makes the air-permeable spacer 4 adhere to the first bracket 13 and the second bracket 3 with higher sealing reliability and is easy to assemble.
  • the ventilating spacer 4 includes a spacer body 41 that is spaced apart from the back cover 12 and is attached to the sound-generating unit 2 , and a spacer body 41 that is bent toward the bracket 3 from the periphery of the spacer body 41 .
  • the spacer extension portion 42 that is folded and extended and the spacer fixing portion 43 that is bent and extended from one end of the spacer extension portion 42 away from the spacer body 41 .
  • the spacer extension portion 42 is spaced apart from the side wall 112 of the front cover.
  • the spacer fixing portion 43 is attached and fixed to the side of the first bracket 13 close to the rear cover 12 and the side of the bracket extension portion 134 close to the rear cover 12 at the same time.
  • the breathable spacer 4 , the first bracket 13 , the second bracket 3 and the back cover 12 together form a powder filling space, and the powder filling space is used for filling sound-absorbing materials, such as sound-absorbing particles, sound-absorbing cotton, and the like.
  • the speaker box 100 further includes a conductive member 5 that connects the sound generating unit 2 with external electrical signals.
  • the conductive member 5 includes a conductive member body 51 supported and fixed on one end of the second section 32 close to the back cover 12 .
  • the connecting arm 52 that extends in the direction and is fixed and electrically connected to the sound-generating unit 2 and extends away from the sound-generating unit 2 from the conductor body 51 and simultaneously penetrates the back cover side wall 122 and the bracket side Extension arm 53 of wall 132 .
  • the rear cover 12 includes a rear cover body 121 disposed opposite to the spacer body 41 , and a peripheral edge of the rear cover body 121 is bent and extended toward the front cover 11 and is connected to the front cover side wall 112 . Abutting against the fixed rear cover side wall 122 .
  • the extension arm 53 penetrates through the front cover side wall 112 and the rear cover side wall 122 at the same time.
  • the structure is convenient to assemble, and the position penetrating the outer side wall 112 of the front cover and the position penetrating the side wall 122 of the rear cover can be used as assembling positions in advance, so as to improve the assembling efficiency.
  • the second bracket 3 One side of the second segment 32 close to the rear cover 12 is recessed to form a receiving groove 320 .
  • the conductive member body 51 is disposed in the receiving slot 320 so that the conductive member body 51 is flush with the side of the second bracket 3 close to the rear cover 12 .
  • the spacer extension portion 42 is simultaneously press-fitted and fixed to the conductive element body 51 and the second bracket 3 .
  • the front cover, the rear cover and the first bracket of the casing are all made of metal materials
  • the first bracket is provided with a through hole
  • the sound generating unit is provided with a diaphragm of the diaphragm.
  • One side faces the through hole and is supported and fixed on the first bracket
  • the front cover and the rear cover are respectively covered on opposite sides of the first bracket
  • the side wall of the front cover of the front cover is provided with a sound outlet to form a side sound structure
  • the metal first bracket is combined with the metal rear cover
  • the metal rear cover is combined with the metal first bracket.
  • the shell On the premise of ensuring the structural strength of the shell, it can be designed to be as good as the all-plastic shell structure. Thinner, which greatly increases the volume of the cavity in the casing, effectively increases the volume of the rear acoustic cavity enclosed by the sounding unit and the casing, thereby improving the acoustic performance of the speaker box, especially Low frequency acoustic performance.

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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 invention provides a loudspeaker box, comprising a shell and a sound production unit fixedly accommodated in the shell. The sound production unit comprises a vibrating diaphragm for vibrating to generate a sound; the shell is made of a metal material; the shell comprises a first support, and a front cover and a rear cover which respectively cover two opposite sides of the first support in a vibration direction of the vibrating diaphragm; the first support is provided with a through hole penetrating through the first support; the side, provided with the vibrating diaphragm, of the sound production unit faces the through hole and is supported and fixed on the first support; the front cover comprises a front cover plate which is arranged opposite to and spaced apart from the sound production unit, and a front cover side wall which bends and extends from the periphery of the front cover plate to the first support and is fixed on the first support; the front cover side wall is provided with a sound outlet which penetrates through the front cover side wall; the front cover, the sound production unit and the first support jointly define a front acoustic cavity, and the front acoustic cavity is communicated with the outside by means of the sound outlet. The sound production unit, the first support and the rear cover jointly define a rear acoustic cavity. Compared with the prior art, the loudspeaker box of the present invention is large in cavity size and good in acoustic performance.

Description

扬声器箱speaker box 技术领域technical field
本发明涉及电声转换领域，尤其涉及一种运用于便携式移动电子产品的扬声器箱。The invention relates to the field of electro-acoustic conversion, in particular to a speaker box used in portable mobile electronic products.
背景技术Background technique
扬声器箱广泛运用于便携式移动电子产品中，比如手机，实现将音频信号转化为声音播放，扬声器箱响度大，低频声音效果好。Speaker boxes are widely used in portable mobile electronic products, such as mobile phones, to realize the conversion of audio signals into sound playback. The speaker box has high loudness and good low-frequency sound effect.
相关技术的扬声器箱包括前盖、盖设于所述前盖并共同围成收容空间的后盖以及收容于所述收容空间内的发声单体，所述发声单体将所述收容空间分隔成前腔和后腔。The speaker box of the related art includes a front cover, a rear cover that is covered on the front cover and jointly encloses a receiving space, and a sound-emitting unit received in the receiving space, and the sound-emitting unit divides the receiving space into Anterior and posterior chambers.
技术问题technical problem
然而，相关技术的扬声器箱的前盖和后盖采用注塑成型，并采用超声波焊接的方式实现发声单体的封闭，超声波焊接需要更多的体积，从而限制了前腔和后腔的体积设计，进而使声学性能受限。However, the front cover and the rear cover of the speaker box of the related art are injection-molded, and the sound-generating unit is sealed by ultrasonic welding. Ultrasonic welding requires more volume, thus limiting the volume design of the front cavity and the rear cavity. This in turn limits the acoustic performance.
因此，有必要提供一种新的扬声器箱解决上述技术问题。Therefore, it is necessary to provide a new speaker box to solve the above technical problems.
技术解决方案technical solutions
本发明的目的在于提供一种腔体体积大，声学性能好的扬声器箱。The purpose of the present invention is to provide a loudspeaker box with large cavity volume and good acoustic performance.
为了达到上述目的，本发明提供了一种扬声器箱，其包括壳体和固定收容于所述壳体内的发声单体，所述发声单体包括用于振动发声的振膜；所述壳体为金属材料制成，所述壳体包括第一支架以及沿所述振膜的振动方向分别盖设于所述第一支架相对两侧的前盖和后盖，所述第一支架设有贯穿其上的通孔；所述发声单体设有所述振膜的一侧朝向所述通孔并支撑固定于所述第一支架；所述前盖包括与所述发声单体间隔相对设置的前盖板和由所述前盖板的周缘向所述第一支架弯折延伸并固定于所述第一支架的前盖侧壁，所述前盖侧壁设有贯穿其上的出声口；所述前盖、所述发声单体及所述第一支架共同围成前声腔，所述出声口将所述前声腔与外界连通；所述发声单体、所述第一支及所述后盖共同围成后声腔。In order to achieve the above object, the present invention provides a speaker box, which includes a housing and a sound-generating unit fixedly accommodated in the housing, the sound-generating unit includes a diaphragm for vibrating and producing sound; the housing is Made of metal material, the housing includes a first bracket and a front cover and a rear cover that are respectively covered on opposite sides of the first bracket along the vibration direction of the vibrating membrane, and the first bracket is provided with a pass through the first bracket. the through hole on the sound-generating unit; the side of the sound-generating unit with the vibrating membrane faces the through-hole and is supported and fixed on the first bracket; the front cover includes a front cover arranged opposite to the sound-generating unit a cover plate and a front cover side wall extending from the periphery of the front cover plate to the first bracket and fixed to the first bracket, and the front cover side wall is provided with a sound outlet passing through it; The front cover, the sounding unit and the first bracket together form a front sound cavity, and the sound outlet communicates the front sound cavity with the outside world; the sounding unit, the first branch and the The rear cover together forms the rear acoustic cavity.
优选的，所述后盖包括与所述发声单体间隔相对的后盖板以及由所述后盖板的周缘弯折延伸的后盖侧壁，所述后盖侧壁抵接于所述第一支架并形成固定密封。Preferably, the back cover includes a back cover plate opposite to the sounding unit at intervals, and a back cover side wall bent and extended from a peripheral edge of the back cover plate, the back cover side wall abuts against the first a bracket and form a fixed seal.
优选的，所述第一支架包括呈环形的支架本体、由所述支架本体的外周缘向所述后盖的方向弯折延伸的呈环状的支架侧壁、由所述支架本体的内周缘向所述前盖方向弯折延伸并围成所述通孔的支架固定部以及由所述支架侧壁正对所述出声口的一侧且靠近所述后盖的一端向远离所述发声单体弯折延伸的支架延伸部，所述发声单体支撑于所述支架固定部并形成固定密封，所述前盖侧壁支撑固定于所述支架本体且所述前盖侧壁设有所述出声口的一侧支撑固定于所述支架延伸部；所述后盖侧壁支撑固定于所述支架侧壁且所述后盖侧壁正对所述前盖侧壁设有所述出声口一侧的部分支撑固定于所述支架延伸部；所述前盖侧壁和所述后盖均分别固定于所述支架侧壁和所述支架延伸部形成密封结构。Preferably, the first bracket includes an annular bracket body, an annular bracket side wall bent and extended from the outer peripheral edge of the bracket body toward the rear cover, and an inner peripheral edge of the bracket body The bracket fixing part, which is bent and extended in the direction of the front cover and surrounds the through hole, and the end of the side wall of the bracket facing the sound outlet and close to the rear cover is far from the sound The bracket extension part of the single body is bent and extended, the sounding monomer is supported on the bracket fixing part and forms a fixed seal, the front cover side wall is supported and fixed on the bracket body, and the front cover side wall is provided with a fixed seal. One side of the sound outlet is supported and fixed on the extension part of the bracket; the side wall of the rear cover is supported and fixed on the side wall of the bracket, and the side wall of the rear cover is opposite to the side wall of the front cover and is provided with the outlet. A part of one side of the sound port is supported and fixed to the bracket extension part; the front cover side wall and the rear cover are fixed to the bracket side wall and the bracket extension part respectively to form a sealing structure.
优选的，所述扬声器箱还包括位于所述后声腔内的第二支架和透气隔离件，所述第二支架环绕所述发声单体的周侧设置，所述第二支架包括位于所述发声单体远离所述出声口一侧的第一段以及由所述第一段的相对两端分别沿所述发声单体向所述出声口方向弯折延伸的第二段和第三段，所述第一段与所述支架延伸部相对设置；所述第二支架固定于所述支架本体并使所述第二段和所述第三段分别抵接固定于所述支架侧壁；所述透气隔离件固定于所述支架本体和所述支架延伸部并将所述发声单体从所述后声腔内分隔。Preferably, the speaker box further includes a second bracket and a ventilating spacer located in the rear acoustic cavity, the second bracket is disposed around the periphery of the sound-generating unit, and the second bracket includes a second bracket located in the sound-generating unit. The first section of the unit away from the sound outlet, and the second section and the third section that are bent and extended from the opposite ends of the first section along the sounding unit toward the sound outlet respectively. , the first section is arranged opposite to the bracket extension; the second bracket is fixed to the bracket body, and the second section and the third section are respectively abutted and fixed to the bracket side wall; The air-permeable spacer is fixed to the bracket body and the bracket extension and separates the sound-generating unit from the rear acoustic cavity.
优选的，所述第一支架与所述第二支架为一体注塑成型。Preferably, the first bracket and the second bracket are integrally injection-molded.
优选的，所述第二支架远离所述前盖的一侧与所述支架延伸部远离所述前盖的一侧平齐。Preferably, a side of the second bracket away from the front cover is flush with a side of the bracket extension portion away from the front cover.
优选的，所述透气隔离件包括与所述后盖间隔相对并贴合于所述发声单体的隔离件本体和由所述隔离件本体的周缘向所述支架方向弯折延伸的隔离件延伸部以及由所述隔离件延伸部远离所述隔离件本体的一端弯折延伸的隔离件固定部；所述隔离件延伸部与所述前盖侧壁间隔设置，所述隔离件固定部同时贴合固定于所述第一支架靠近所述后盖的一侧和所述支架延伸部靠近所述后盖的一侧；所述透气隔离件、所述第一支架、所述第二支架及所述后盖共同围成灌粉空间，所述灌粉空间用于填充吸音材料。Preferably, the air-permeable spacer includes a spacer body that is spaced apart from the back cover and is attached to the sound-generating unit, and an spacer extension that is bent and extended from the periphery of the spacer body toward the bracket. and a spacer fixing portion bent and extended from one end of the spacer extension portion away from the spacer body; the spacer extension portion is spaced from the side wall of the front cover, and the spacer fixing portion is attached to the spacer at the same time. is fixed on the side of the first bracket close to the rear cover and the side of the bracket extension part close to the rear cover; the ventilation spacer, the first bracket, the second bracket and the The back cover together forms a powder filling space, and the powder filling space is used for filling the sound-absorbing material.
优选的，所述扬声器箱还包括将所述发声单体与外界电信号连接的导电件，所述导电件包括支撑固定于所述第二段靠近所述后盖一端的导电件本体、由所述导电件本体的两端向所述发声单体方向延伸并与所述发声单体固定电连接的连接臂以及由所述导电件本体向远离所述发声单体方向延伸并同时贯穿所述后盖侧壁和所述支架侧壁的延伸臂；所述第二段靠近所述后盖的一侧凹陷形成收容槽，所述导电件本体设置于所述收容槽内并使得所述导电件本体与所述第二支架靠近所述后盖的一侧平齐，所述隔离件延伸部同时压设固定于所述导电件本体及所述第二支架。Preferably, the speaker box further includes a conductive member for connecting the sound-emitting unit with an external electrical signal, the conductive member includes a conductive member body supported and fixed on one end of the second section close to the back cover, and the conductive member is The two ends of the conductive part body extend toward the sound-generating unit and are fixed and electrically connected to the connecting arm; the side wall of the cover and the extension arm of the side wall of the bracket; the side of the second segment close to the rear cover is recessed to form a receiving groove, and the conductive member body is arranged in the receiving groove and makes the conductive member body The second bracket is flush with the side of the second bracket close to the back cover, and the spacer extension portion is simultaneously press-fitted and fixed to the conductive member body and the second bracket.
优选的，所述延伸臂同时贯穿所述前盖侧壁及所述后盖侧壁。Preferably, the extension arm penetrates through the side wall of the front cover and the side wall of the rear cover at the same time.
有益效果beneficial effect
与相关技术相比，本发明的扬声器箱中，所述壳体的前盖、后盖以及第一支架均由金属材料制成，第一支架设有通孔，发声单体设有振膜的一侧朝向通孔并支撑固定于第一支架，前盖和后盖分别盖设于所述第一支架相对两侧，并将前盖的前盖侧壁设有出声口形成侧发声结构，上述结构中，金属的第一支架与金属的后盖组合，金属的后盖与金属的第一支架组合，在确保壳体的结构强度的前提下，其相对于全塑料壳体结构可设计得更薄，从而极大程度的提高了壳体内的腔体体积，有效的增加了发声单体与所述壳体围成的后声腔的体积，进而改善了所述扬声器箱的声学性能，特别是低频声学性能。Compared with the related art, in the speaker box of the present invention, the front cover, the rear cover and the first bracket of the casing are all made of metal materials, the first bracket is provided with a through hole, and the sound generating unit is provided with a diaphragm of the diaphragm. One side faces the through hole and is supported and fixed on the first bracket, the front cover and the rear cover are respectively covered on opposite sides of the first bracket, and the side wall of the front cover of the front cover is provided with a sound outlet to form a side sound structure, In the above structure, the metal first bracket is combined with the metal rear cover, and the metal rear cover is combined with the metal first bracket. On the premise of ensuring the structural strength of the shell, it can be designed to be as good as the all-plastic shell structure. Thinner, which greatly increases the volume of the cavity in the casing, effectively increases the volume of the rear acoustic cavity enclosed by the sounding unit and the casing, thereby improving the acoustic performance of the speaker box, especially Low frequency acoustic performance.
附图说明Description of drawings
为了更清楚地说明本发明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发明的一些实施例，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：In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, under the premise of no creative work, other drawings can also be obtained from these drawings, wherein:
图1为本发明扬声器箱的立体结构示意图；Fig. 1 is the three-dimensional structure schematic diagram of the speaker box of the present invention;
图2为本发明扬声器箱的部分立体结构分解示意图；Fig. 2 is the partial three-dimensional structure exploded schematic diagram of the speaker box of the present invention;
图3为沿图1中A-A线的剖示图；Fig. 3 is a sectional view along line A-A in Fig. 1;
图4为图3中B所示部分放大图。FIG. 4 is an enlarged view of the part shown in B in FIG. 3 .
本发明的实施方式Embodiments of the present invention
下面将结合本发明实施例中的附图，对本发明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发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，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，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
请同时参阅图1-4，本发明提供了一种扬声器箱100，其包括壳体1和固定收容于所述壳体1内的具有振膜21的发声单体2。Please refer to FIGS. 1-4 at the same time, the present invention provides a speaker box 100 , which includes a casing 1 and a sounding unit 2 having a diaphragm 21 fixedly accommodated in the casing 1 .
所述壳体1为金属材料制成。所述壳体1包括前盖11、后盖12以及第一支架13。其中所述前盖11和所述后盖12沿所述振膜21的振动方向分别盖设于所述第一支架13相对两侧。The casing 1 is made of metal material. The housing 1 includes a front cover 11 , a rear cover 12 and a first bracket 13 . The front cover 11 and the rear cover 12 are respectively covered on opposite sides of the first bracket 13 along the vibration direction of the diaphragm 21 .
具体的，所述前盖11包括与所述发声单体2间隔相对设置的前盖板111和由所述前盖板111的周缘向所述第一支架13的方向弯折延伸并固定于所述第一支架13的前盖侧壁112。Specifically, the front cover 11 includes a front cover plate 111 disposed opposite to the sounding unit 2 at a distance, and a front cover plate 111 is bent and extended in the direction of the first bracket 13 from the periphery of the front cover plate 111 and is fixed to the The side wall 112 of the front cover of the first bracket 13 is described.
所述前盖板111和所述前盖侧壁112可以分体两个，也可以使一体制造。本实施方式中，所述前盖板111和所述前盖侧壁112为一体成型。The front cover plate 111 and the front cover side wall 112 can be separated into two parts, or can be made in one piece. In this embodiment, the front cover plate 111 and the front cover side wall 112 are integrally formed.
所述发声单体2、所述第一支架13以及所述前盖11共同围成前声腔101。所述振膜21收容于所述前声腔101内，所述前盖侧壁112设有贯穿其上的出声口10，所述出声口10将所述前声腔101与外界连通，该结构形成所述扬声器箱100的侧发声结构，为了提高侧发声的与外界的空气通畅性，使得所述扬声器箱100的音频品质提升。The sounding unit 2 , the first bracket 13 and the front cover 11 together form a front sound cavity 101 . The diaphragm 21 is accommodated in the front acoustic cavity 101 , and the front cover side wall 112 is provided with a sound outlet 10 extending therethrough, and the sound outlet 10 communicates the front acoustic cavity 101 with the outside world. This structure The side-emitting structure of the speaker box 100 is formed, in order to improve the air smoothness between the side-emitting sound and the outside world, the audio quality of the speaker box 100 is improved.
本实施方式中，所述前盖侧壁112设有所述出声口10的一侧与其相连的所述后盖12平齐。该设置使得所述扬声器箱100组装简单并外形美观。In this embodiment, the side of the front cover side wall 112 where the sound outlet 10 is provided is flush with the rear cover 12 connected thereto. This arrangement makes the speaker box 100 easy to assemble and has a beautiful appearance.
所述后盖12包括与所述发声单体2间隔相对的后盖板121以及由所述后盖板121的周缘弯折延伸的后盖侧壁122。所述后盖侧壁122抵接于所述第一支架13并形成固定密封。所述发声单体2、所述第一支架13以及所述后盖12共同围成密闭的后声腔102。The back cover 12 includes a back cover plate 121 opposite to the sounding unit 2 at a distance and a back cover side wall 122 bent and extended from the periphery of the back cover plate 121 . The back cover side wall 122 abuts against the first bracket 13 and forms a fixed seal. The sound generating unit 2 , the first bracket 13 and the rear cover 12 together form a closed rear sound cavity 102 .
本实施方式中，所述后盖12与所述第一支架13焊接形成固定，所述前盖侧壁11与所述第一支架13焊接形成固定，前盖11与后盖12相对于现有技术中的塑料结构可设计更薄，且固定强度更可靠。In this embodiment, the rear cover 12 is fixed by welding with the first bracket 13 , the side wall 11 of the front cover is fixed by welding with the first bracket 13 , and the front cover 11 and the rear cover 12 are relatively The plastic structure in the technology can be designed to be thinner, and the fixing strength is more reliable.
上述结构中，所述前盖11、所述后盖12以及所述第一支架13的组合结构，因前盖11和后盖12为金属材料制成，通过金属材料制成的第一支架13与后盖11固定，用以支撑固定发声单体2并形成后声腔102，再通过金属材料制成的第一支架13与前盖11固定并形成前声腔101，在确保壳体1的结构强度的前提下，其相对于全塑料壳体结构不仅可设计得更薄，且同样有效的装配发声单体2，从而极大程度的提高了壳体1内的腔体体积，有效的增加了发声单体2与所述壳体1围成的后声腔10的体积，进而改善了所述扬声器箱100的声学性能，特别是低频声学性能。In the above structure, the combined structure of the front cover 11 , the rear cover 12 and the first bracket 13 , because the front cover 11 and the rear cover 12 are made of metal materials, the first bracket 13 made of metal materials is used. It is fixed with the rear cover 11 to support and fix the sounding unit 2 and form the rear sound cavity 102 , and then the first bracket 13 made of metal material is fixed with the front cover 11 to form the front sound cavity 101 , in order to ensure the structural strength of the casing 1 On the premise, compared with the all-plastic shell structure, it can not only be designed to be thinner, but also effectively assemble the sound-emitting unit 2, thereby greatly increasing the volume of the cavity in the shell 1 and effectively increasing the sound output. The volume of the rear acoustic cavity 10 enclosed by the single unit 2 and the housing 1 further improves the acoustic performance of the speaker box 100 , especially the low-frequency acoustic performance.
具体的，所述第一支架13包括贯穿其上的通孔130、呈环形的支架本体131、由所述支架本体131的外周缘向所述后盖12的方向弯折延伸的呈环状的支架侧壁132、由所述支架本体131的内周缘向所述前盖11方向弯折延伸并围成所述通孔130的支架固定部133以及由所述支架侧壁132正对所述出声口10的一侧向远离所述发声单体2弯折延伸的支架延伸部134。Specifically, the first bracket 13 includes a through hole 130 extending therethrough, an annular bracket body 131 , and an annular bracket body 131 bent and extended from the outer periphery of the bracket body 131 toward the rear cover 12 . The bracket side wall 132 , the bracket fixing portion 133 that is bent and extended from the inner periphery of the bracket body 131 toward the front cover 11 and surrounds the through hole 130 , and the bracket side wall 132 is facing the outlet. One side of the sound port 10 is away from the bracket extension portion 134 that is bent and extended from the sound generating unit 2 .
所述发声单体2设有所述振膜21的一侧朝向所述通孔130并支撑固定于所述第一支架130。也就是说，所述第一支架13与所述发声单体2形成密封固定。The side of the sound generating unit 2 with the diaphragm 21 faces the through hole 130 and is supported and fixed to the first bracket 130 . That is to say, the first bracket 13 is sealed and fixed with the sounding unit 2 .
所述前盖侧壁112支撑固定于所述支架本体131且所述前盖侧壁112设有所述出声口10的一侧支撑固定于所述支架延伸部134；所述后盖侧壁122支撑固定于所述支架侧壁132且所述后盖侧壁122正对所述前盖侧壁112设有所述出声口10一侧的部分支撑固定于所述支架延伸部134。该结构使得前盖11和后盖12通过第一支架13连接时形成部分错位桥接，使得后声腔102体积增加且后声腔102设计更灵活。The front cover side wall 112 is supported and fixed to the bracket body 131 , and the side of the front cover side wall 112 with the sound outlet 10 is supported and fixed to the bracket extension 134 ; the rear cover side wall 122 is supported and fixed to the bracket side wall 132 , and the portion of the rear cover side wall 122 facing the front cover side wall 112 where the sound outlet 10 is provided is supported and fixed to the bracket extension portion 134 . This structure makes a partial dislocation bridge formed when the front cover 11 and the rear cover 12 are connected by the first bracket 13 , so that the volume of the rear acoustic cavity 102 is increased and the design of the rear acoustic cavity 102 is more flexible.
本实施方式中，所述前盖侧壁112靠近所述后盖12一侧设有向远离所述支架本体131的方向凹陷的避让槽1120。所述支架本体131和所述支架侧壁132收容固定于所述避让槽1120内。所述前盖侧壁112设有所述出声口10的一侧盖设固定于所述支架延伸部134。该结构利用了所述支架延伸部134和所述支架本体131的高度差，通过所述前盖侧壁112设置所述避让槽1120进行组装，有利于扬声器箱100的厚度减少，小型化设计更好。In this embodiment, the side of the front cover side wall 112 close to the rear cover 12 is provided with an escape groove 1120 recessed in a direction away from the bracket body 131 . The bracket body 131 and the bracket side wall 132 are accommodated and fixed in the escape groove 1120 . The side wall of the front cover 112 with the sound outlet 10 is covered and fixed to the bracket extension 134 . This structure utilizes the height difference between the bracket extension portion 134 and the bracket body 131, and sets the avoidance groove 1120 through the front cover side wall 112 for assembly, which is beneficial to reduce the thickness of the speaker box 100 and improve the miniaturization design. Okay.
所述发声单体2的所述振膜21用于振动发声。具体的，所述振膜21包括振动部211、由所述振动部211的周缘弯折延伸的折环部212、由所述折环部212向远离所述振动部211的方向弯折延伸的振膜固定部213。所述发声单体2支撑于所述支架固定部133并形成固定密封，具体的，所述支架固定部133固定于所述振膜固定部213，以使得所述第一支架13、所述振膜21、所述第一支架13以及所述前盖11共同围成所述前声腔101，同时使得所述扬声器箱100组装简单和可靠性高。The diaphragm 21 of the sound-generating unit 2 is used for vibrating and sounding. Specifically, the vibrating membrane 21 includes a vibrating portion 211 , a ring portion 212 that is bent and extended from the periphery of the vibrating portion 211 , and a ring portion 212 that is bent and extended in a direction away from the vibrating portion 211 . Diaphragm fixing part 213 . The sounding unit 2 is supported on the bracket fixing part 133 and forms a fixed seal. Specifically, the bracket fixing part 133 is fixed on the diaphragm fixing part 213, so that the first bracket 13, the The membrane 21 , the first bracket 13 and the front cover 11 together form the front acoustic cavity 101 , which makes the speaker box 100 easy to assemble and has high reliability.
所述扬声器箱100还包括位于所述后声腔102内的第二支架3。所述第二支架3由塑料材料制成。所述第一支架13与所述第二支架3可以分别制造并固定一起，当然，不限于此，本实施方式中，所述第一支架13与所述第二支架3为一体注塑成型。该结构使得所述扬声器箱100的制造更为简单并易于组装。The speaker box 100 further includes a second bracket 3 located in the rear acoustic cavity 102 . The second bracket 3 is made of plastic material. The first bracket 13 and the second bracket 3 can be separately manufactured and fixed together. Of course, it is not limited to this. In this embodiment, the first bracket 13 and the second bracket 3 are integrally injection-molded. This structure makes the speaker enclosure 100 simpler to manufacture and easier to assemble.
所述第二支架3位于所述后声腔102内。所述第二支架3固定于所述第一支架13。所述第二支架3环绕所述发声单体2的周侧。所述第二支架3包括位于所述发声单体2远离所述出声口10一侧的第一段31以及由所述第一段31的相对两端分别沿所述发声单体2向所述出声口10方向弯折延伸的第二段32和第三段33。The second bracket 3 is located in the rear acoustic cavity 102 . The second bracket 3 is fixed to the first bracket 13 . The second bracket 3 surrounds the peripheral side of the sounding unit 2 . The second bracket 3 includes a first section 31 located on the side of the sound-generating unit 2 away from the sound outlet 10 , and opposite ends of the first section 31 are respectively located along the sound-generating unit 2 toward each other. Describe the second section 32 and the third section 33 that are bent and extended in the direction of the sound port 10 .
所述第二支架3固定于所述支架本体131并使所述第二段32和所述第三段33分别抵接固定于所述支架侧壁132。所述第一段31与所述支架延伸部134相对设置。所述前盖侧壁112和所述后盖12均分别固定于所述支架侧壁132和所述支架延伸部134形成密封结构。The second bracket 3 is fixed to the bracket body 131 and the second section 32 and the third section 33 are respectively abutted and fixed to the bracket side wall 132 . The first segment 31 is disposed opposite to the bracket extension portion 134 . The front cover side wall 112 and the rear cover 12 are respectively fixed to the bracket side wall 132 and the bracket extension portion 134 to form a sealing structure.
为进一步改善扬声器箱100的低频声学性能，所述扬声器箱100还包括位于所述后声腔102内的透气隔离件4。所述透气隔离件4固定于所述支架本体131和所述支架延伸部134并将所述发声单体2从所述后声腔102内分隔，从而使得后声腔102内可填充吸音材料。In order to further improve the low-frequency acoustic performance of the speaker box 100 , the speaker box 100 further includes a ventilating spacer 4 located in the rear acoustic cavity 102 . The air-permeable spacer 4 is fixed to the bracket body 131 and the bracket extension portion 134 and separates the sound-generating unit 2 from the rear acoustic cavity 102 , so that the rear acoustic cavity 102 can be filled with sound-absorbing materials.
本实施方式中，所述第二支架3远离所述前盖11的一侧与所述支架延伸部134远离所述前盖11的一侧平齐。也就是说，所述第一段31远离所述前盖11的一侧、所述第二段32远离所述前盖11的一侧以及所述第三段33远离所述前盖11的一侧均与所述支架延伸部134远离所述前盖11的一侧平齐。该结构使得所述透气隔离件4贴合所述第一支架13和所述第二支架3密封的可靠性更高，也易于组装。In this embodiment, the side of the second bracket 3 away from the front cover 11 is flush with the side of the bracket extension 134 away from the front cover 11 . That is to say, the side of the first segment 31 away from the front cover 11 , the side of the second segment 32 away from the front cover 11 , and the side of the third segment 33 away from the front cover 11 . Both sides are flush with the side of the bracket extension portion 134 away from the front cover 11 . This structure makes the air-permeable spacer 4 adhere to the first bracket 13 and the second bracket 3 with higher sealing reliability and is easy to assemble.
具体的，所述透气隔离件4包括与所述后盖12间隔相对并贴合于所述发声单体2的隔离件本体41和由所述隔离件本体41的周缘向所述支架3方向弯折延伸的隔离件延伸部42以及由所述隔离件延伸部42远离所述隔离件本体41的一端弯折延伸的隔离件固定部43。所述隔离件延伸部42与所述前盖侧壁112间隔设置。所述隔离件固定部43同时贴合固定于所述第一支架13靠近所述后盖12的一侧和所述支架延伸部134靠近所述后盖12的一侧。所述透气隔离件4、所述第一支架13、第二支架3及所述后盖12共同围成灌粉空间，所述灌粉空间用于填充吸音材料，比如吸音颗粒、吸音棉等。Specifically, the ventilating spacer 4 includes a spacer body 41 that is spaced apart from the back cover 12 and is attached to the sound-generating unit 2 , and a spacer body 41 that is bent toward the bracket 3 from the periphery of the spacer body 41 . The spacer extension portion 42 that is folded and extended and the spacer fixing portion 43 that is bent and extended from one end of the spacer extension portion 42 away from the spacer body 41 . The spacer extension portion 42 is spaced apart from the side wall 112 of the front cover. The spacer fixing portion 43 is attached and fixed to the side of the first bracket 13 close to the rear cover 12 and the side of the bracket extension portion 134 close to the rear cover 12 at the same time. The breathable spacer 4 , the first bracket 13 , the second bracket 3 and the back cover 12 together form a powder filling space, and the powder filling space is used for filling sound-absorbing materials, such as sound-absorbing particles, sound-absorbing cotton, and the like.
所述扬声器箱100还包括将所述发声单体2与外界电信号连接的导电件5。The speaker box 100 further includes a conductive member 5 that connects the sound generating unit 2 with external electrical signals.
本实施方式中，所述导电件5包括支撑固定于所述第二段32靠近所述后盖12一端的导电件本体51、由所述导电件本体51的两端向所述发声单体2方向延伸并与所述发声单体2固定电连接的连接臂52以及由所述导电件本体51向远离所述发声单体2方向延伸并同时贯穿所述后盖侧壁122和所述支架侧壁132的延伸臂53。所述后盖12包括与所述隔离件本体41间隔相对设置的后盖本体121以及由的述后盖本体121的周缘向所述前盖11方向弯折延伸并与所述前盖侧壁112抵接固定的后盖侧壁122。In this embodiment, the conductive member 5 includes a conductive member body 51 supported and fixed on one end of the second section 32 close to the back cover 12 . The connecting arm 52 that extends in the direction and is fixed and electrically connected to the sound-generating unit 2 and extends away from the sound-generating unit 2 from the conductor body 51 and simultaneously penetrates the back cover side wall 122 and the bracket side Extension arm 53 of wall 132 . The rear cover 12 includes a rear cover body 121 disposed opposite to the spacer body 41 , and a peripheral edge of the rear cover body 121 is bent and extended toward the front cover 11 and is connected to the front cover side wall 112 . Abutting against the fixed rear cover side wall 122 .
本实施方式中，所述延伸臂53同时贯穿所述前盖侧壁112及所述后盖侧壁122。该结构方便装配，贯穿前盖外侧壁112的位置及贯穿后盖侧壁122的位置可预先作为装配定位，提高装配效率。In this embodiment, the extension arm 53 penetrates through the front cover side wall 112 and the rear cover side wall 122 at the same time. The structure is convenient to assemble, and the position penetrating the outer side wall 112 of the front cover and the position penetrating the side wall 122 of the rear cover can be used as assembling positions in advance, so as to improve the assembling efficiency.
为了使透气隔离件4与支架3固定时形成有效密封，确保灌粉空间内的吸音材料不会进入到发声单体2而影响其性能，本实施方式中，所述第二支架3的所述第二段32靠近所述后盖12的一侧凹陷形成收容槽320。所述导电件本体51设置于所述收容槽320内并使得所述导电件本体51与所述第二支架3靠近所述后盖12的一侧平齐。所述隔离件延伸部42同时压设固定于所述导电件本体51及所述第二支架3。In order to form an effective seal when the air-permeable spacer 4 is fixed with the bracket 3 and ensure that the sound-absorbing material in the powder filling space does not enter the sound-emitting unit 2 and affect its performance, in this embodiment, the second bracket 3 One side of the second segment 32 close to the rear cover 12 is recessed to form a receiving groove 320 . The conductive member body 51 is disposed in the receiving slot 320 so that the conductive member body 51 is flush with the side of the second bracket 3 close to the rear cover 12 . The spacer extension portion 42 is simultaneously press-fitted and fixed to the conductive element body 51 and the second bracket 3 .
与相关技术相比，本发明的扬声器箱中，所述壳体的前盖、后盖以及第一支架均由金属材料制成，第一支架设有通孔，发声单体设有振膜的一侧朝向通孔并支撑固定于第一支架，前盖和后盖分别盖设于所述第一支架相对两侧，并将前盖的前盖侧壁设有出声口形成侧发声结构，上述结构中，金属的第一支架与金属的后盖组合，金属的后盖与金属的第一支架组合，在确保壳体的结构强度的前提下，其相对于全塑料壳体结构可设计得更薄，从而极大程度的提高了壳体内的腔体体积，有效的增加了发声单体与所述壳体围成的后声腔的体积，进而改善了所述扬声器箱的声学性能，特别是低频声学性能。Compared with the related art, in the speaker box of the present invention, the front cover, the rear cover and the first bracket of the casing are all made of metal materials, the first bracket is provided with a through hole, and the sound generating unit is provided with a diaphragm of the diaphragm. One side faces the through hole and is supported and fixed on the first bracket, the front cover and the rear cover are respectively covered on opposite sides of the first bracket, and the side wall of the front cover of the front cover is provided with a sound outlet to form a side sound structure, In the above structure, the metal first bracket is combined with the metal rear cover, and the metal rear cover is combined with the metal first bracket. On the premise of ensuring the structural strength of the shell, it can be designed to be as good as the all-plastic shell structure. Thinner, which greatly increases the volume of the cavity in the casing, effectively increases the volume of the rear acoustic cavity enclosed by the sounding unit and the casing, thereby improving the acoustic performance of the speaker box, especially Low frequency acoustic performance.
以上所述的仅是本发明的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本发明创造构思的前提下，还可以做出改进，但这些均属于本发明的保护范围。The above are only the embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, improvements can be made without departing from the inventive concept of the present invention, but these belong to the present invention. scope of protection.

Claims (9)

  1. 一种扬声器箱，其包括壳体和固定收容于所述壳体内的发声单体，所述发声单体包括用于振动发声的振膜，其特征在于，所述壳体为金属材料制成，所述壳体包括第一支架以及沿所述振膜的振动方向分别盖设于所述第一支架相对两侧的前盖和后盖，所述第一支架设有贯穿其上的通孔；所述发声单体设有所述振膜的一侧朝向所述通孔并支撑固定于所述第一支架；所述前盖包括与所述发声单体间隔相对设置的前盖板和由所述前盖板的周缘向所述第一支架弯折延伸并固定于所述第一支架的前盖侧壁，所述前盖侧壁设有贯穿其上的出声口；所述前盖、所述发声单体及所述第一支架共同围成前声腔，所述出声口将所述前声腔与外界连通；所述发声单体、所述第一支及所述后盖共同围成后声腔。A loudspeaker box, comprising a shell and a sound-generating unit fixedly accommodated in the shell, the sound-generating unit comprising a diaphragm for vibrating and sounding, characterized in that the shell is made of a metal material, The housing comprises a first bracket, a front cover and a rear cover respectively covered on opposite sides of the first bracket along the vibration direction of the diaphragm, and the first bracket is provided with a through hole passing through it; The side of the sound-generating unit with the diaphragm facing the through hole is supported and fixed to the first bracket; the front cover includes a front cover plate arranged opposite to the sound-generating unit at an interval and a The peripheral edge of the front cover plate is bent and extended toward the first bracket and fixed on the side wall of the front cover of the first bracket, and the side wall of the front cover is provided with a sound outlet passing through it; the front cover, The sound-generating unit and the first bracket together form a front sound cavity, and the sound outlet communicates the front sound cavity with the outside world; the sound-generating unit, the first branch and the back cover together form a rear voice.
  2. 根据权利要求1所述的扬声器箱，其特征在于，所述后盖包括与所述发声单体间隔相对的后盖板以及由所述后盖板的周缘弯折延伸的后盖侧壁，所述后盖侧壁抵接于所述第一支架并形成固定密封。The loudspeaker box according to claim 1, wherein the rear cover comprises a rear cover plate opposite to the sound-generating unit and a rear cover side wall bent and extended from the periphery of the rear cover plate, so The side wall of the rear cover abuts against the first bracket and forms a fixed seal.
  3. 根据权利要求2所述的扬声器箱，其特征在于，所述第一支架包括呈环形的支架本体、由所述支架本体的外周缘向所述后盖的方向弯折延伸的呈环状的支架侧壁、由所述支架本体的内周缘向所述前盖方向弯折延伸并围成所述通孔的支架固定部以及由所述支架侧壁正对所述出声口的一侧且靠近所述后盖的一端向远离所述发声单体弯折延伸的支架延伸部，所述发声单体支撑于所述支架固定部并形成固定密封，所述前盖侧壁支撑固定于所述支架本体且所述前盖侧壁设有所述出声口的一侧支撑固定于所述支架延伸部；所述后盖侧壁支撑固定于所述支架侧壁且所述后盖侧壁正对所述前盖侧壁设有所述出声口一侧的部分支撑固定于所述支架延伸部；所述前盖侧壁和所述后盖均分别固定于所述支架侧壁和所述支架延伸部形成密封结构。The speaker box according to claim 2, wherein the first bracket comprises an annular bracket body, an annular bracket bent and extended from the outer periphery of the bracket body toward the rear cover a side wall, a bracket fixing part that is bent and extended toward the front cover from the inner periphery of the bracket body and surrounds the through hole, and the side facing the sound outlet from the bracket side wall and is close to the One end of the back cover is bent and extended away from the sound-generating unit, the sound-generating unit is supported on the support fixing part and forms a fixed seal, and the front cover side wall is supported and fixed on the support The side wall of the main body and the side wall of the front cover with the sound outlet is supported and fixed to the extension part of the bracket; the side wall of the rear cover is supported and fixed to the side wall of the bracket and the side wall of the rear cover is facing The part of the side wall of the front cover provided with the sound outlet is supported and fixed to the bracket extension part; the side wall of the front cover and the rear cover are both fixed to the side wall of the bracket and the bracket respectively The extension forms a sealing structure.
  4. 根据权利要求3所述的扬声器箱，其特征在于，所述扬声器箱还包括位于所述后声腔内的第二支架和透气隔离件，所述第二支架环绕所述发声单体的周侧设置，所述第二支架包括位于所述发声单体远离所述出声口一侧的第一段以及由所述第一段的相对两端分别沿所述发声单体向所述出声口方向弯折延伸的第二段和第三段，所述第一段与所述支架延伸部相对设置；所述第二支架固定于所述支架本体并使所述第二段和所述第三段分别抵接固定于所述支架侧壁；所述透气隔离件固定于所述支架本体和所述支架延伸部并将所述发声单体从所述后声腔内分隔。The speaker box according to claim 3, wherein the speaker box further comprises a second bracket and a ventilating spacer located in the rear acoustic cavity, the second bracket is disposed around the periphery of the sound-generating unit , the second bracket includes a first section located on the side of the sound-emitting unit away from the sound outlet, and the opposite ends of the first section are respectively directed from the sound-emitting unit to the sound outlet The second and third sections are bent and extended, and the first section is arranged opposite to the bracket extension; the second bracket is fixed to the bracket body and makes the second section and the third section are respectively abutted and fixed on the side walls of the bracket; the air-permeable spacer is fixed on the bracket body and the bracket extension and separates the sound-generating unit from the rear acoustic cavity.
  5. 根据权利要求4所述的扬声器箱，其特征在于，所述第一支架与所述第二支架为一体注塑成型。The speaker box according to claim 4, wherein the first bracket and the second bracket are integrally injection-molded.
  6. 根据权利要求4所述的扬声器箱，其特征在于，所述第二支架远离所述前盖的一侧与所述支架延伸部远离所述前盖的一侧平齐。The speaker box according to claim 4, wherein a side of the second bracket away from the front cover is flush with a side of the bracket extension away from the front cover.
  7. 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与所述后盖间隔相对并贴合于所述发声单体的隔离件本体和由所述隔离件本体的周缘向所述支架方向弯折延伸的隔离件延伸部以及由所述隔离件延伸部远离所述隔离件本体的一端弯折延伸的隔离件固定部；所述隔离件延伸部与所述前盖侧壁间隔设置，所述隔离件固定部同时贴合固定于所述第一支架靠近所述后盖的一侧和所述支架延伸部靠近所述后盖的一侧；所述透气隔离件、所述第一支架、所述第二支架及所述后盖共同围成灌粉空间，所述灌粉空间用于填充吸音材料。The loudspeaker box according to claim 4, wherein the ventilating spacer comprises a spacer body opposite to the back cover and attached to the sound-generating unit, and a spacer body extending from a peripheral edge of the spacer body to the spacer body. a spacer extension part bent and extended in the bracket direction and a spacer fixing part bent and extended from one end of the spacer extension part away from the spacer body; the spacer extension part and the side wall of the front cover The spacers are arranged at intervals, and the spacer fixing part is attached and fixed to the side of the first bracket close to the back cover and the side of the support extension part close to the back cover at the same time; the breathable spacer, the The first bracket, the second bracket and the back cover together form a powder filling space, and the powder filling space is used to fill the sound-absorbing material.
  8. 根据权利要求7所述的扬声器箱，其特征在于，所述扬声器箱还包括将所述发声单体与外界电信号连接的导电件，所述导电件包括支撑固定于所述第二段靠近所述后盖一端的导电件本体、由所述导电件本体的两端向所述发声单体方向延伸并与所述发声单体固定电连接的连接臂以及由所述导电件本体向远离所述发声单体方向延伸并同时贯穿所述后盖侧壁和所述支架侧壁的延伸臂；所述第二段靠近所述后盖的一侧凹陷形成收容槽，所述导电件本体设置于所述收容槽内并使得所述导电件本体与所述第二支架靠近所述后盖的一侧平齐，所述隔离件延伸部同时压设固定于所述导电件本体及所述第二支架。The speaker box according to claim 7, characterized in that, the speaker box further comprises a conductive member for connecting the sound generating unit with an external electrical signal, and the conductive member comprises a conductive member supported and fixed on the second section close to the The conductive member body at one end of the back cover, the connecting arm extending from the two ends of the conductive member body towards the sound-emitting unit and being fixed and electrically connected to the sound-emitting unit, and the conductive member body extending away from the The sounding unit extends in the direction and penetrates the extension arm of the side wall of the back cover and the side wall of the bracket at the same time; the side of the second section close to the back cover is recessed to form a receiving groove, and the main body of the conductive member is arranged on the side of the back cover. The conductive element body is flush with the side of the second bracket close to the rear cover in the receiving groove, and the spacer extension portion is pressed and fixed to the conductive element body and the second bracket at the same time. .
  9. 根据权利要求8所述的扬声器箱，其特征在于，所述延伸臂同时贯穿所述前盖侧壁及所述后盖侧壁。The speaker box according to claim 8, wherein the extension arm penetrates both the side wall of the front cover and the side wall of the rear cover.
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