WO2022041454A1 - Loudspeaker box - Google Patents

Loudspeaker box Download PDF

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Publication number
WO2022041454A1
WO2022041454A1 PCT/CN2020/124117 CN2020124117W WO2022041454A1 WO 2022041454 A1 WO2022041454 A1 WO 2022041454A1 CN 2020124117 W CN2020124117 W CN 2020124117W WO 2022041454 A1 WO2022041454 A1 WO 2022041454A1
Authority
WO
WIPO (PCT)
Prior art keywords
sound
front cover
cover
rear cover
bracket
Prior art date
Application number
PCT/CN2020/124117
Other languages
French (fr)
Chinese (zh)
Inventor
吴军
印兆宇
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 WO2022041454A1 publication Critical patent/WO2022041454A1/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 are injection-molded, and ultrasonic welding is used to realize the sealing of the sounding unit.
  • Ultrasonic welding requires more volume, thus limiting the volume design of the front cavity and the rear cavity. , which in turn limits the acoustic performance.
  • the speaker box is not provided with a positioning structure, it is inconvenient to assemble the speaker box on an external terminal.
  • the purpose of the present invention is to provide a speaker box with convenient assembly, high assembly reliability and good sealing performance.
  • the present invention provides a loudspeaker box, which includes a housing with a receiving space and a sound-generating unit fixedly accommodated in the receiving space, the sound-generating unit including a diaphragm for vibrating and sounding;
  • the housing comprises a front cover made of metal material and a rear cover made of metal material covered and fixed on the front cover, the front cover and the rear cover together form the receiving space,
  • the speaker box further includes a bracket made of plastic located in the receiving space, the bracket includes a ring-shaped bracket body fixedly connected with the front cover, and a sound guide channel extending from the bracket body.
  • a sound guide part one side of the sound generating unit provided with the vibrating membrane is supported and fixed on the bracket body and spaced apart from the front cover to form a front sound cavity, and the sound guide channel is communicated with the front sound cavity;
  • the casing is provided with a sound outlet passing through it, the sound guide part abuts on the casing and completely covers the sound outlet, and the sound guide channel communicates with the sound outlet;
  • the front The cover and/or the back cover protrudes and extends in a direction away from the sound-generating unit to form a positioning piece, and the positioning piece is used for assembling the casing to an external terminal; the sound-generating unit, the front cover , the bracket and the rear cover together form a closed rear acoustic cavity.
  • the positioning piece is located at the connection between the front cover and the rear cover, and opposite sides of the front cover and/or the rear cover where the positioning piece is provided are recessed to form an arc shape groove, the arc groove is glued to form a seal.
  • the positioning piece is provided with a positioning hole therethrough.
  • the positioning pieces include at least two, and the at least two positioning pieces are disposed on opposite sides of the housing.
  • the front cover includes a front cover body and a front cover side wall extending from the outer peripheral edge of the front cover body toward the rear cover;
  • the rear cover includes a rear cover that is relatively spaced from the front cover body
  • the cover body and the back cover side wall which is bent and extended in the direction of the front cover from the peripheral edge of the back cover body and abutted and fixed with the side wall of the front cover, and the positioning piece is close to the front cover by the side wall of the front cover.
  • One end of the side wall of the rear cover protrudes and extends in a direction away from the sounding unit, and the arc-shaped groove is formed from the end of the side wall of the front cover close to the side wall of the rear cover to the side away from the side wall of the rear cover Depression is formed.
  • the bracket body is fixed to the front cover body; the sound outlet is arranged through the side wall of the front cover, and the sound guide part abuts against the side wall of the front cover.
  • the bracket further includes a positioning step formed on the inner periphery of the bracket body, the sound-generating unit is supported on the positioning step, and the support body is arranged around the circumference of the sound-emitting unit and is connected with the sound-generating unit.
  • the sound-generating unit forms a hermetic fixation.
  • the speaker box further includes a ventilating spacer located in the rear acoustic cavity, the ventilating spacer is attached to the sound-generating unit and separates the sound-generating unit from the rear acoustic cavity.
  • the ventilating spacer includes an 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 extending portion away from the spacer body; the spacer extending portion is spaced from the housing, and the spacer fixing portion is fixed to the spacer
  • the bracket body is close to the side of the rear cover; the ventilation spacer, the bracket, the front cover and the rear cover together form a powder filling space, and the powder filling space is filled with sound-absorbing material.
  • the speaker box further includes a conductive member that connects 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 bracket body 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; an extension arm; the spacer fixing part is press-fitted and fixed on the side of the conductor body away from the bracket body.
  • the front cover and/or the rear cover protrudes and extends in a direction away from the sound-emitting unit to form a positioning piece, and the positioning piece is used for assembling the casing to the external terminal;
  • the sounding unit, the bracket, the front cover and the back cover together form a closed back sound cavity;
  • the positioning piece provides convenience when the speaker box is assembled on the external terminal, making The assembly is simpler, and the arrangement of the arc groove effectively disperses the stress at the position of the front cover and/or the rear cover close to the positioning piece, avoiding the situation that the positioning piece is broken due to excessive stress concentration, thereby improving the reliability of assembly.
  • both the front cover and the rear cover are made of metal materials, the front cover and the rear cover can be made of thinner steel sheets, and the casing can be designed to be thinner, thereby greatly increasing the volume of the cavity in the casing .
  • 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 schematic exploded schematic diagram of a partial three-dimensional structure of the speaker box of the present invention from another angle;
  • Fig. 4 is a sectional view along line A-A in Fig. 1;
  • FIG. 5 is an enlarged view of the part shown in B in FIG. 1 .
  • the present invention provides a speaker box 100 , which includes a housing 1 having a receiving space 10 , a sounding unit 2 fixedly received in the receiving space 10 , and a speaker box 2 located in the receiving space 10 .
  • the inner bracket 3, the sound-generating unit 2 and the housing 1 together form a rear sound cavity 102.
  • the housing 1 is a split structure, which includes a front cover 11 made of metal material and a rear cover 12 made of metal material that is covered and fixed on the front cover 11 , the front cover 11 and the The rear cover 12 together forms the accommodating space 10 , and the front cover 11 is provided with a sound outlet 13 penetrating through it and communicating with the outside world.
  • a positioning piece may be provided on the front cover 11 and/or the rear cover 12, and in order to avoid stress concentration, the front cover 11 and/or the rear cover 12
  • the rear cover 12 is provided with an arc-shaped groove for dispersing stress.
  • the positioning piece is formed by the front cover 11 and/or the rear cover 12 protruding and extending in the direction away from the sound-producing unit 2, and the positioning piece includes at least two positioning pieces, at least two positioning pieces They are arranged on opposite sides of the housing 1, and the specific number and specific positions of the positioning pieces can be adjusted according to actual needs.
  • two positioning pieces 113 are formed on opposite sides of the front cover 11 to protrude and extend in a direction away from the sound-generating unit 2, respectively, and the positioning pieces 113 are used to attach the casing 1 is assembled on an external terminal; the positioning piece 113 is located at the connection between the front cover 11 and the rear cover 12, and the opposite sides of the front cover 11 where the positioning piece 113 is set are recessed An arc-shaped groove 1130 is formed. When the front cover 11 and the rear cover 12 are sealed and fixed, the arc-shaped groove 1130 is sealed with glue; Set the positioning piece, or set the positioning piece on both the front cover and the rear cover at the same time.
  • the positioning piece 113 is provided with a positioning hole 1131 passing through it.
  • a screw is used to pass through the positioning hole 1131 to be threaded with an external terminal, so as to fix the speaker box 100 on the external terminal.
  • the two positioning pieces 113 are arranged on opposite sides of the housing 1, the fixing stability is effectively improved, and the symmetrical arrangement enables the sounding device 100 to be positioned and fixed with the external terminal. better.
  • the bracket 3 is made of plastic and has an annular structure, and the bracket 3 forms a fixed connection with the front cover 11 .
  • the sound-generating unit 2 includes a vibrating membrane 21 for vibrating and sounding, and the bracket 3 is arranged around the periphery of the sound-generating unit 2 and is sealed and fixed with the sound-generating unit 2, so that the sound-generating unit 2 2.
  • the bracket 3 , the front cover 11 and the rear cover 12 together enclose the airtight rear acoustic cavity 102 .
  • the combined structure of the front cover 11, the rear cover 12 and the bracket 3 because the front cover 11 and the rear cover 12 are made of metal materials, the bracket 3 made of plastic material is fixed to the front cover 11 for supporting and fixing.
  • the sounding unit 2 can not only be designed to be thinner than the all-plastic shell structure, but also effectively assemble the sounding unit 2, thereby greatly improving the shell.
  • the volume of the cavity in the body 1 effectively increases the volume of the rear acoustic cavity 102 enclosed by the sound-generating unit 2 and the shell 1, thereby improving the acoustic performance of the speaker box, especially the low-frequency acoustic performance;
  • the arrangement of the positioning piece 113 provides convenience when the speaker box 100 is assembled on the external terminal, and simplifies the assembly process.
  • the arrangement of the arc groove 1130 effectively makes the front cover 11
  • the stress on the position where the positioning piece 113 is arranged is dispersed, which avoids the breaking of the positioning piece 113 due to excessive stress concentration, improves the service life of the housing 1 and improves the reliability of assembly; in order to ensure all
  • the sealing effect of the casing 1 is improved by applying glue in the arc-shaped groove 1130 to improve the sealing performance of the position and the overall sealing performance of the casing 1 .
  • the front cover 11 includes a front cover body 111 provided with the sound outlet 13 , a front cover side wall 112 extending from the outer peripheral edge of the front cover body 111 toward the rear cover 12 ;
  • the The rear cover 12 includes a rear cover body 121 disposed opposite to the front cover body 111 , and a peripheral edge of the rear cover body 121 is bent and extended toward the front cover 11 and abuts against the front cover side wall 112 .
  • Fixed back cover side wall 122 is affixed to cover side wall 122 .
  • the sound outlet 13 is disposed through the side wall 112 of the front cover along the vibration direction perpendicular to the diaphragm 21 .
  • the arc-shaped groove 1130 is formed by protruding and extending in the direction away from the sounding unit 2 , and the arc-shaped groove 1130 is formed by concave from the end of the front cover side wall 112 close to the rear cover side wall 122 toward the rear cover side wall 122 .
  • the front cover 11 is fixed by welding the front cover side wall 112 and the rear cover side wall 122 of the rear cover.
  • the front cover 11 and the rear cover 12 are relatively plastic in the prior art The structure can be designed thinner, and the fixing strength is more reliable.
  • the bracket 3 forms a fixed connection with the front cover body 111 .
  • the bracket 3 includes a ring-shaped bracket body 31 that is fixedly connected to the front cover 11 , and a bracket body 31 formed on the inner periphery of the bracket body 31 .
  • the positioning step 32 and the sound guide portion 33 with the sound guide channel 30 extending from the bracket body 31 are formed.
  • the side of the sound-generating unit 2 with the diaphragm 21 is supported and fixed to the bracket body 31 and is spaced apart from the front cover body 111 to form a front acoustic cavity 101 , that is, the front acoustic cavity 101 is formed by the diaphragm. 21.
  • the bracket 3 and the front cover body 111 are jointly enclosed; the sound guide portion 33 is in contact with the housing 1 and completely covers the sound outlet 13, and the sound guide channel 30 connects the The front sound cavity 101 communicates with the sound outlet 13 to form a side sound structure of the speaker box 100 .
  • the bracket body 31 is fixed to the front cover body 111 and abuts against the front cover side wall 112 , the sound guide portion 33 abuts against the front cover side wall 112 , and the positioning step 32 is formed by the inner peripheral edge of the bracket body 31 protruding and extending toward the sounding unit 2 perpendicular to the vibration direction, and the sounding unit 2 is supported on the positioning step 32 on the side away from the front cover main body 111 .
  • the front cover 11 and the bracket 3 are integrally formed of plastic.
  • the bracket body 31 is disposed around the periphery of the sound-generating unit 2 and forms a seal with the sound-generating unit 2 , so that the rear acoustic cavity 102 forms a closed space for improving low-frequency acoustic performance.
  • the speaker box 100 further includes a ventilating spacer 4 located in the rear acoustic cavity 102, the ventilating spacer 4 is attached to the sound-emitting unit 2 and the The sound-generating unit 2 is separated from the rear sound cavity 102 , so that a powder filling space that can be filled with sound-absorbing material is formed in the rear sound cavity 102 .
  • the ventilating spacer 4 includes a spacer body 41 that is spaced apart from the rear cover 12 and is attached to the sounding unit 2 , and is bent toward the bracket 3 from the periphery of the spacer body 41 .
  • the spacer extension portion 42 is folded and extended, and the spacer fixing portion 43 is bent and extended from the end of the spacer extension portion 42 away from the spacer body 41 .
  • the direction of bending and extending can also be bent and extended in a direction away from the side wall 112 of the front cover.
  • the spacer extending portion 42 is spaced apart from the housing 1 , and the spacer fixing portion 43 is fixed to the side of the bracket body 31 close to the rear cover 12 .
  • the air-permeable spacer 4 , the bracket 3 , the front cover 11 and the rear cover 12 together form a powder filling space, and the powder filling space is filled with 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 bracket body 31 close to the back cover 12 .
  • a connecting arm 52 that extends and is fixed and electrically connected to the sounding unit 2 and an extension arm 53 that extends away from the sounding unit 2 from the conductor body 51 and penetrates through the housing 1 .
  • the extension arm 53 penetrates the front cover side wall 112 and the rear cover side wall 122 at the same time, and the bracket body 31 and the conductive member body 51 are recessed to form a receiving groove 310 .
  • the conductive body 51 is accommodated in the accommodating slot 310 and supported on the bracket body 31 . This structure is convenient for assembly.
  • the position passing through the side wall 112 of the front cover and the position passing through the side wall 122 of the rear cover can be used as assembly positioning in advance to improve assembly. effectiveness.
  • the spacer fixing portion 43 is press-fitted. It is fixed on the side of the conductive member body 51 away from the bracket body 31 , and the spacer fixing portion 43 and the conductive member body 51 are glued to form a sealing and fixing.
  • the front cover and/or the rear cover protrudes and extends in a direction away from the sound-emitting unit to form a positioning piece, and the positioning piece is used for assembling the casing to the external terminal;
  • the sounding unit, the bracket, the front cover and the back cover together form a closed back sound cavity;
  • the positioning piece provides convenience when the speaker box is assembled on the external terminal, making The assembly is simpler, and the arrangement of the arc groove effectively disperses the stress at the position of the front cover and/or the rear cover close to the positioning piece, avoiding the situation that the positioning piece is broken due to excessive stress concentration, thereby improving the reliability of assembly.
  • both the front cover and the rear cover are made of metal materials, the front cover and the rear cover can be made of thinner steel sheets, and the casing can be designed to be thinner, thereby greatly increasing the volume of the cavity in the casing .

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

Abstract

Provided is a loudspeaker box, which comprises: a housing having an accommodating space; and a sound production unit and a support, which is made of plastic, wherein the sound production unit and the support are respectively fixedly accommodated in the accommodating space. The sound production unit comprises a diaphragm. The housing comprises a front cover and a rear cover that are respectively made of a metal material, wherein the rear cover covers and is fixed to the front cover, and defines the accommodating space together with the front cover. The support comprises a support body fixed to the front cover, and a sound guide portion having a sound guide channel. The sound production unit is supported by the support body and is spaced apart from the front cover to define a front sound cavity, wherein the sound guide channel is in communication with the front sound cavity. The housing is provided with a sound outlet, wherein the sound guide portion abuts against the housing and completely covers the sound outlet, and the sound guide channel is in communication with the sound outlet. The front cover and/or the rear cover protrude and extend to form a positioning sheet, wherein the positioning sheet is used for assembling the housing on an external terminal. The sound production unit, the front cover, the support and the rear cover jointly define a closed rear sound cavity. Compared with the prior art, the loudspeaker box in the present invention is easily assembled, and has high assembly reliability and good sealing 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，相关技术中，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。此外，由于扬声器箱未设置定位结构，不便于将扬声器箱装配在外部的终端上。However, in the related art, the front cover and the rear cover of the speaker box are injection-molded, and ultrasonic welding is used to realize the sealing of the sounding unit. Ultrasonic welding requires more volume, thus limiting the volume design of the front cavity and the rear cavity. , which in turn limits the acoustic performance. In addition, since the speaker box is not provided with a positioning structure, it is inconvenient to assemble the speaker box on an external terminal.
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装配方便、装配可靠性高且密封性好的扬声器箱。The purpose of the present invention is to provide a speaker box with convenient assembly, high assembly reliability and good sealing performance.
为了达到上述目的，本发明提供一种扬声器箱，其包括具有收容空间的壳体和固定收容于所述收容空间内的发声单体，所述发声单体包括用于振动发声的振膜；所述壳体包括由金属材料制成的前盖以及盖设固定于所述前盖的由金属材料制成的后盖，所述前盖和所述后盖共同围成所述收容空间，所述扬声器箱还包括位于所述收容空间内的由塑料制成的支架，所述支架包括与所述前盖固定连接的呈环状的支架本体以及由所述支架本体延伸形成的具有导声通道的导声部，所述发声单体设有所述振膜的一侧支撑固定于所述支架本体并与所述前盖间隔围成前声腔，所述导声通道与所述前声腔连通；所述壳体设有贯穿其上的出声口，所述导声部抵接于所述壳体并完全覆盖所述出声口，所述导声通道与所述出声口连通；所述前盖和/或所述后盖向远离所述发声单体的方向凸出延伸形成定位片，所述定位片用于将所述壳体装配于外部终端；所述发声单体、所述前盖、所述支架及所述后盖共同围成密闭的后声腔。In order to achieve the above object, the present invention provides a loudspeaker box, which includes a housing with a receiving space and a sound-generating unit fixedly accommodated in the receiving space, the sound-generating unit including a diaphragm for vibrating and sounding; The housing comprises a front cover made of metal material and a rear cover made of metal material covered and fixed on the front cover, the front cover and the rear cover together form the receiving space, the The speaker box further includes a bracket made of plastic located in the receiving space, the bracket includes a ring-shaped bracket body fixedly connected with the front cover, and a sound guide channel extending from the bracket body. a sound guide part, one side of the sound generating unit provided with the vibrating membrane is supported and fixed on the bracket body and spaced apart from the front cover to form a front sound cavity, and the sound guide channel is communicated with the front sound cavity; The casing is provided with a sound outlet passing through it, the sound guide part abuts on the casing and completely covers the sound outlet, and the sound guide channel communicates with the sound outlet; the front The cover and/or the back cover protrudes and extends in a direction away from the sound-generating unit to form a positioning piece, and the positioning piece is used for assembling the casing to an external terminal; the sound-generating unit, the front cover , the bracket and the rear cover together form a closed rear acoustic cavity.
优选的，所述定位片位于所述前盖和所述后盖之间的连接处，所述前盖和/或所述后盖设置所述定位片的位置的相对两侧均凹陷形成弧形槽，所述弧形槽内打胶形成密封。Preferably, the positioning piece is located at the connection between the front cover and the rear cover, and opposite sides of the front cover and/or the rear cover where the positioning piece is provided are recessed to form an arc shape groove, the arc groove is glued to form a seal.
优选的，所述定位片设有贯穿其上的定位孔。Preferably, the positioning piece is provided with a positioning hole therethrough.
优选的，所述定位片包括至少两个，所述至少两个定位片设置于所述壳体的相对两侧。Preferably, the positioning pieces include at least two, and the at least two positioning pieces are disposed on opposite sides of the housing.
优选的，所述前盖包括前盖本体以及由所述前盖本体的外周缘向所述后盖方向延伸的前盖侧壁；所述后盖包括与所述前盖本体相对间隔设置的后盖本体以及由的述后盖本体的周缘向所述前盖方向弯折延伸并与所述前盖侧壁抵接固定的后盖侧壁，所述定位片由所述前盖侧壁靠近所述后盖侧壁的一端向远离所述发声单体的方向凸出延伸形成，所述弧形槽由所述前盖侧壁靠近所述后盖侧壁的一端向远离所述后盖侧壁凹陷形成。Preferably, the front cover includes a front cover body and a front cover side wall extending from the outer peripheral edge of the front cover body toward the rear cover; the rear cover includes a rear cover that is relatively spaced from the front cover body The cover body and the back cover side wall which is bent and extended in the direction of the front cover from the peripheral edge of the back cover body and abutted and fixed with the side wall of the front cover, and the positioning piece is close to the front cover by the side wall of the front cover. One end of the side wall of the rear cover protrudes and extends in a direction away from the sounding unit, and the arc-shaped groove is formed from the end of the side wall of the front cover close to the side wall of the rear cover to the side away from the side wall of the rear cover Depression is formed.
优选的，所述支架本体固定于所述前盖本体；所述出声口贯穿所述前盖侧壁设置，所述导声部抵接于所述前盖侧壁。Preferably, the bracket body is fixed to the front cover body; the sound outlet is arranged through the side wall of the front cover, and the sound guide part abuts against the side wall of the front cover.
优选的，所述支架还包括形成于所述支架本体内周缘的定位台阶，所述发声单体支撑于所述定位台阶，所述支架本体环绕所述发声单体的周侧设置并与所述发声单体形成密封固定。Preferably, the bracket further includes a positioning step formed on the inner periphery of the bracket body, the sound-generating unit is supported on the positioning step, and the support body is arranged around the circumference of the sound-emitting unit and is connected with the sound-generating unit. The sound-generating unit forms a hermetic fixation.
优选的，所述扬声器箱还包括位于所述后声腔内的透气隔离件，所述透气隔离件贴设于所述发声单体并将所述发声单体从所述后声腔内分隔。Preferably, the speaker box further includes a ventilating spacer located in the rear acoustic cavity, the ventilating spacer is attached to the sound-generating unit and separates the sound-generating unit from the rear acoustic cavity.
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、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壳体间隔设置，所述隔离件固定部固定于所述支架本体靠近所述后盖的一侧；所述透气隔离件、所述支架、所述前盖及所述后盖共同围成灌粉空间，所述灌粉空间内填充有吸音材料。Preferably, the ventilating spacer includes an 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 extending portion away from the spacer body; the spacer extending portion is spaced from the housing, and the spacer fixing portion is fixed to the spacer The bracket body is close to the side of the rear cover; the ventilation spacer, the bracket, the front cover and the rear cover together form a powder filling space, and the powder filling space is filled with 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支架本体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贯穿所述壳体的延伸臂；所述隔离件固定部压设固定于所述导电件本体远离所述支架本体的一侧。Preferably, the speaker box further includes a conductive member that connects 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 bracket body 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; an extension arm; the spacer fixing part is press-fitted and fixed on the side of the conductor body away from the bracket body.
有益效果beneficial effect
与相关技术相比，本发明的扬声器箱中，前盖和/或后盖向远离发声单体的方向凸出延伸形成定位片，定位片用于将壳体装配于外部终端；定位片位于前盖和后盖之间的连接处，发声单体、支架、前盖和后盖共同围成密闭的后声腔；上述结构中，定位片为扬声器箱装配于外部的终端上时提供了便利，使得装配更加简单，而弧形槽的设置，有效地使得前盖和/或后盖靠近定位片的位置的应力分散，避免了由于应力过于集中而导致定位片断裂的情况，从而提高装配的可靠性，另外，通过在弧形槽内打胶以提高该位置的密封性，改善壳体的密封性。并且，前盖和后盖均由金属材料制成，前盖和后盖可以采用较薄的钢片制成，壳体可设计得更薄，从而极大程度的提高了壳体内的腔体体积。Compared with the related art, in the speaker box of the present invention, the front cover and/or the rear cover protrudes and extends in a direction away from the sound-emitting unit to form a positioning piece, and the positioning piece is used for assembling the casing to the external terminal; At the joint between the cover and the back cover, the sounding unit, the bracket, the front cover and the back cover together form a closed back sound cavity; in the above structure, the positioning piece provides convenience when the speaker box is assembled on the external terminal, making The assembly is simpler, and the arrangement of the arc groove effectively disperses the stress at the position of the front cover and/or the rear cover close to the positioning piece, avoiding the situation that the positioning piece is broken due to excessive stress concentration, thereby improving the reliability of assembly. , In addition, the sealing performance of the position is improved by applying glue in the arc groove to improve the sealing performance of the housing. Moreover, both the front cover and the rear cover are made of metal materials, the front cover and the rear cover can be made of thinner steel sheets, and the casing can be designed to be thinner, thereby greatly increasing the volume of the cavity in the casing .
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为本发明扬声器箱另一角度的部分立体结构分解示意图；FIG. 3 is a schematic exploded schematic diagram of a partial three-dimensional structure of the speaker box of the present invention from another angle;
图4为沿图1中A-A线的剖示图；Fig. 4 is a sectional view along line A-A in Fig. 1;
图5为图1中B所示部分放大图。FIG. 5 is an enlarged view of the part shown in B in FIG. 1 .
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 drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but 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1-5，本发明提供了一种扬声器箱100，其包括具有收容空间10的壳体1和固定收容于所述收容空间10内的发声单体2以及位于所述收容空间10内的支架3，所述发声单体2与所述壳体1共同围成后声腔102。Please refer to FIGS. 1-5 at the same time, the present invention provides a speaker box 100 , which includes a housing 1 having a receiving space 10 , a sounding unit 2 fixedly received in the receiving space 10 , and a speaker box 2 located in the receiving space 10 . The inner bracket 3, the sound-generating unit 2 and the housing 1 together form a rear sound cavity 102.
所述壳体1为分体结构，其包括由金属材料制成的前盖11以及盖设固定于所述前盖11的由金属材料制成的后盖12，所述前盖11和所述后盖12共同围成所述收容空间10，所述前盖11设有贯穿其上的且与外界连通的出声口13。The housing 1 is a split structure, which includes a front cover 11 made of metal material and a rear cover 12 made of metal material that is covered and fixed on the front cover 11 , the front cover 11 and the The rear cover 12 together forms the accommodating space 10 , and the front cover 11 is provided with a sound outlet 13 penetrating through it and communicating with the outside world.
为了方便所述扬声器箱100装配在外部的终端上，可以在所述前盖11和/或所述后盖12设置定位片，同时为了避免应力集中，在所述前盖11和/或所述后盖12设有用于分散应力的弧形槽。In order to facilitate the assembly of the speaker box 100 on an external terminal, a positioning piece may be provided on the front cover 11 and/or the rear cover 12, and in order to avoid stress concentration, the front cover 11 and/or the rear cover 12 The rear cover 12 is provided with an arc-shaped groove for dispersing stress.
需要说明的是，定位片由所述前盖11和/或所述后盖12向远离所述发声单体2的方向凸出延伸形成，定位片的包括至少两个，至少两个的定位片设置于所述壳体1相对两侧，定位片的具体数量及具***置可以根据实际需要进行调整。It should be noted that the positioning piece is formed by the front cover 11 and/or the rear cover 12 protruding and extending in the direction away from the sound-producing unit 2, and the positioning piece includes at least two positioning pieces, at least two positioning pieces They are arranged on opposite sides of the housing 1, and the specific number and specific positions of the positioning pieces can be adjusted according to actual needs.
比如，在本实施方式中，所述前盖11的相对两侧分别向远离所述发声单体2的方向凸出延伸形成两个定位片113，所述定位片113用于将所述壳体1装配于外部的终端上；所述定位片113位于所述前盖11和所述后盖12之间的连接处，所述前盖11设置所述定位片113的位置的相对两侧均凹陷形成弧形槽1130，当所述前盖11和所述后盖12形成密封固定时，所述弧形槽1130内打胶形成密封；当然，在其他实施方式中，也可以只在后盖上设置定位片，或者，同时在前盖和后盖上均设置定位片。For example, in this embodiment, two positioning pieces 113 are formed on opposite sides of the front cover 11 to protrude and extend in a direction away from the sound-generating unit 2, respectively, and the positioning pieces 113 are used to attach the casing 1 is assembled on an external terminal; the positioning piece 113 is located at the connection between the front cover 11 and the rear cover 12, and the opposite sides of the front cover 11 where the positioning piece 113 is set are recessed An arc-shaped groove 1130 is formed. When the front cover 11 and the rear cover 12 are sealed and fixed, the arc-shaped groove 1130 is sealed with glue; Set the positioning piece, or set the positioning piece on both the front cover and the rear cover at the same time.
进一步的，所述定位片113设有贯穿其上的定位孔1131，在装配时，使用螺纹件穿过所述定位孔1131与外部的终端螺纹连接，从而将所述扬声器箱100固定在外部的终端上，而在本实施方式中，由于两个所述定位片113设置于所述壳体1的相对两侧，有效地提高固定稳定性，对称设置使发声器件100与外部的终端定位固定效果更优。Further, the positioning piece 113 is provided with a positioning hole 1131 passing through it. During assembly, a screw is used to pass through the positioning hole 1131 to be threaded with an external terminal, so as to fix the speaker box 100 on the external terminal. In this embodiment, since the two positioning pieces 113 are arranged on opposite sides of the housing 1, the fixing stability is effectively improved, and the symmetrical arrangement enables the sounding device 100 to be positioned and fixed with the external terminal. better.
所述支架3由塑料制成并呈环状结构，所述支架3与所述前盖11形成固定连接。The bracket 3 is made of plastic and has an annular structure, and the bracket 3 forms a fixed connection with the front cover 11 .
所述发声单体2包括用于振动发声的振膜21，所述支架3环绕所述发声单体2的周侧设置并与所述发声单体2形成密封固定，从而，所述发声单体2、所述支架3、所述前盖11以及所述后盖12共同围成密闭的所述后声腔102。The sound-generating unit 2 includes a vibrating membrane 21 for vibrating and sounding, and the bracket 3 is arranged around the periphery of the sound-generating unit 2 and is sealed and fixed with the sound-generating unit 2, so that the sound-generating unit 2 2. The bracket 3 , the front cover 11 and the rear cover 12 together enclose the airtight rear acoustic cavity 102 .
上述结构中，前盖11、后盖12以及支架3的组合结构，因前盖11和后盖12为金属材料制成，通过塑料材料制成的支架3与前盖11固定，用以支撑固定发声单体2，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102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；而通过所述定位片113的设置，为所述扬声器箱100装配于外部的终端上时提供了便利，简化了装配工序，另外，通过所述弧形槽1130的设置，有效地使得所述前盖11设置所述定位片113的位置上的应力分散，避免了由于应力过于集中而导致所述定位片113断裂的情况，提高了所述壳体1的使用寿命，提高装配的可靠性；为了保证所述壳体1的密封效果，通过在所述弧形槽1130内打胶以提高该位置的密封性，改善所述壳体1整体的密封性。In the above structure, the combined structure of the front cover 11, the rear cover 12 and the bracket 3, because the front cover 11 and the rear cover 12 are made of metal materials, the bracket 3 made of plastic material is fixed to the front cover 11 for supporting and fixing. On the premise of ensuring the structural strength of the shell 1, the sounding unit 2 can not only be designed to be thinner than the all-plastic shell structure, but also effectively assemble the sounding unit 2, thereby greatly improving the shell. The volume of the cavity in the body 1 effectively increases the volume of the rear acoustic cavity 102 enclosed by the sound-generating unit 2 and the shell 1, thereby improving the acoustic performance of the speaker box, especially the low-frequency acoustic performance; The arrangement of the positioning piece 113 provides convenience when the speaker box 100 is assembled on the external terminal, and simplifies the assembly process. In addition, the arrangement of the arc groove 1130 effectively makes the front cover 11 The stress on the position where the positioning piece 113 is arranged is dispersed, which avoids the breaking of the positioning piece 113 due to excessive stress concentration, improves the service life of the housing 1 and improves the reliability of assembly; in order to ensure all The sealing effect of the casing 1 is improved by applying glue in the arc-shaped groove 1130 to improve the sealing performance of the position and the overall sealing performance of the casing 1 .
具体的，所述前盖11包括设有所述出声口13的前盖本体111、由所述前盖本体111的外周缘向所述后盖12方向延伸的前盖侧壁112；所述后盖12包括与所述前盖本体111相对间隔设置的后盖本体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。Specifically, the front cover 11 includes a front cover body 111 provided with the sound outlet 13 , a front cover side wall 112 extending from the outer peripheral edge of the front cover body 111 toward the rear cover 12 ; the The rear cover 12 includes a rear cover body 121 disposed opposite to the front cover body 111 , and a peripheral edge of the rear cover body 121 is bent and extended toward the front cover 11 and abuts against the front cover side wall 112 . Fixed back cover side wall 122 .
所述出声口13沿垂直所述振膜21的振动方向贯穿所述前盖侧壁112设置，所述定位片113由所述前盖侧壁112靠近所述后盖侧壁122的一端向远离所述发声单体2的方向凸出延伸形成，所述弧形槽1130由所述前盖侧壁112靠近所述后盖侧壁122的一端向远离所述后盖侧壁122凹陷形成。The sound outlet 13 is disposed through the side wall 112 of the front cover along the vibration direction perpendicular to the diaphragm 21 . The arc-shaped groove 1130 is formed by protruding and extending in the direction away from the sounding unit 2 , and the arc-shaped groove 1130 is formed by concave from the end of the front cover side wall 112 close to the rear cover side wall 122 toward the rear cover side wall 122 .
本实施方式中，所述前盖11通过所述前盖侧壁112与所述后盖的所述后盖侧壁122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 front cover 11 is fixed by welding the front cover side wall 112 and the rear cover side wall 122 of the rear cover. The front cover 11 and the rear cover 12 are relatively plastic in the prior art The structure can be designed thinner, and the fixing strength is more reliable.
所述支架3与所述前盖本体111形成固定连接，具体的，所述支架3包括与所述前盖11固定连接的呈环状的支架本体31、形成于所述支架本体31内周缘的定位台阶32，以及由所述支架本体31延伸形成的具有导声通道30的导声部33。The bracket 3 forms a fixed connection with the front cover body 111 . Specifically, the bracket 3 includes a ring-shaped bracket body 31 that is fixedly connected to the front cover 11 , and a bracket body 31 formed on the inner periphery of the bracket body 31 . The positioning step 32 and the sound guide portion 33 with the sound guide channel 30 extending from the bracket body 31 are formed.
所述发声单体2设有所述振膜21的一侧支撑固定于所述支架本体31并且与所述前盖本体111间隔围成前声腔101，即所述前声腔101由所述振膜21、所述支架3和所述前盖本体111共同围成；所述导声部33抵接于所述壳体1并完全覆盖所述出声口13，所述导声通道30将所述前声腔101与所述出声口13连通以形成所述扬声器箱100的侧发声结构。The side of the sound-generating unit 2 with the diaphragm 21 is supported and fixed to the bracket body 31 and is spaced apart from the front cover body 111 to form a front acoustic cavity 101 , that is, the front acoustic cavity 101 is formed by the diaphragm. 21. The bracket 3 and the front cover body 111 are jointly enclosed; the sound guide portion 33 is in contact with the housing 1 and completely covers the sound outlet 13, and the sound guide channel 30 connects the The front sound cavity 101 communicates with the sound outlet 13 to form a side sound structure of the speaker box 100 .
更具体的，所述支架本体31固定于所述前盖本体111并抵接于所述前盖侧壁112，所述导声部33抵接于所述前盖侧壁112，所述定位台阶32由所述支架本体31内周缘沿垂直所述振动方向向靠近所述发声单体2凸出延伸形成，所述发声单体2支撑于所述定位台阶32远离所述前盖主体111一侧。本实施方式中，所述前盖11与所述支架3为一体塑料成型。More specifically, the bracket body 31 is fixed to the front cover body 111 and abuts against the front cover side wall 112 , the sound guide portion 33 abuts against the front cover side wall 112 , and the positioning step 32 is formed by the inner peripheral edge of the bracket body 31 protruding and extending toward the sounding unit 2 perpendicular to the vibration direction, and the sounding unit 2 is supported on the positioning step 32 on the side away from the front cover main body 111 . In this embodiment, the front cover 11 and the bracket 3 are integrally formed of plastic.
所述支架本体31环绕所述发声单体2的周侧设置并与所述发声单体2形成密封固，以使得后声腔102形成密闭空间，用以改善低频声学性能。The bracket body 31 is disposed around the periphery of the sound-generating unit 2 and forms a seal with the sound-generating unit 2 , so that the rear acoustic cavity 102 forms a closed space for improving low-frequency acoustic performance.
为进一步改善扬声器件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贴设于所述发声单体2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内形成可填充吸音材料的灌粉空间。In order to further improve the low-frequency acoustic performance of the speaker device 100, the speaker box 100 further includes a ventilating spacer 4 located in the rear acoustic cavity 102, the ventilating spacer 4 is attached to the sound-emitting unit 2 and the The sound-generating unit 2 is separated from the rear sound cavity 102 , so that a powder filling space that can be filled with sound-absorbing material is formed in the rear sound cavity 102 .
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、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，隔离件固定部43可向靠近前盖侧壁112的方向弯折延伸，也可向远离前盖侧壁112的方向弯折延伸。所述隔离件延伸部42与所述壳体1间隔设置，所述隔离件固定部43固定于所述支架本体31靠近所述后盖12的一侧。所述透气隔离件4、所述支架3、所述前盖11及所述后盖12共同围成灌粉空间，所述灌粉空间内填充有吸音材料，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 rear cover 12 and is attached to the sounding unit 2 , and is bent toward the bracket 3 from the periphery of the spacer body 41 . The spacer extension portion 42 is folded and extended, and the spacer fixing portion 43 is bent and extended from the end of the spacer extension portion 42 away from the spacer body 41 . The direction of bending and extending can also be bent and extended in a direction away from the side wall 112 of the front cover. The spacer extending portion 42 is spaced apart from the housing 1 , and the spacer fixing portion 43 is fixed to the side of the bracket body 31 close to the rear cover 12 . The air-permeable spacer 4 , the bracket 3 , the front cover 11 and the rear cover 12 together form a powder filling space, and the powder filling space is filled with 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。本实施方式中，所述导电件5包括支撑固定于所述支架本体31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方向延伸并贯穿所述壳体1的延伸臂53。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，所述支架本体31与所述导电件本体51相对的位置凹陷形成收容槽310，所述导电本体51收容于所述收容槽310并支撑于所述支架本体31，该结构方便装配，贯穿前盖侧壁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。The speaker box 100 further includes a conductive member 5 that connects the sound generating unit 2 with external electrical signals. In this embodiment, the conductive member 5 includes a conductive member body 51 supported and fixed on one end of the bracket body 31 close to the back cover 12 . A connecting arm 52 that extends and is fixed and electrically connected to the sounding unit 2 and an extension arm 53 that extends away from the sounding unit 2 from the conductor body 51 and penetrates through the housing 1 . In this embodiment, the extension arm 53 penetrates the front cover side wall 112 and the rear cover side wall 122 at the same time, and the bracket body 31 and the conductive member body 51 are recessed to form a receiving groove 310 . The conductive body 51 is accommodated in the accommodating slot 310 and supported on the bracket body 31 . This structure is convenient for assembly. The position passing through the side wall 112 of the front cover and the position passing through the side wall 122 of the rear cover can be used as assembly positioning in advance to improve assembly. effectiveness.
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，所述隔离件固定部43压设固定于所述导电件本体51远离所述支架本体31的一侧，且所述隔离件固定部43与所述导电件本体51之间打胶形成密封固定。In order to form an effective seal when the air-permeable spacer 4 is fixed with the bracket 3, and to ensure that the sound-absorbing material in the powder filling space will not enter the sound-emitting unit 2 and affect its performance, in this embodiment, the spacer fixing portion 43 is press-fitted. It is fixed on the side of the conductive member body 51 away from the bracket body 31 , and the spacer fixing portion 43 and the conductive member body 51 are glued to form a sealing and fixing.
与相关技术相比，本发明的扬声器箱中，前盖和/或后盖向远离发声单体的方向凸出延伸形成定位片，定位片用于将壳体装配于外部终端；定位片位于前盖和后盖之间的连接处，发声单体、支架、前盖和后盖共同围成密闭的后声腔；上述结构中，定位片为扬声器箱装配于外部的终端上时提供了便利，使得装配更加简单，而弧形槽的设置，有效地使得前盖和/或后盖靠近定位片的位置的应力分散，避免了由于应力过于集中而导致定位片断裂的情况，从而提高装配的可靠性，另外，通过在弧形槽内打胶以提高该位置的密封性，改善壳体的密封性。并且，前盖和后盖均由金属材料制成，前盖和后盖可以采用较薄的钢片制成，壳体可设计得更薄，从而极大程度的提高了壳体内的腔体体积。Compared with the related art, in the speaker box of the present invention, the front cover and/or the rear cover protrudes and extends in a direction away from the sound-emitting unit to form a positioning piece, and the positioning piece is used for assembling the casing to the external terminal; At the joint between the cover and the back cover, the sounding unit, the bracket, the front cover and the back cover together form a closed back sound cavity; in the above structure, the positioning piece provides convenience when the speaker box is assembled on the external terminal, making The assembly is simpler, and the arrangement of the arc groove effectively disperses the stress at the position of the front cover and/or the rear cover close to the positioning piece, avoiding the situation that the positioning piece is broken due to excessive stress concentration, thereby improving the reliability of assembly. , In addition, the sealing performance of the position is improved by applying glue in the arc groove to improve the sealing performance of the housing. Moreover, both the front cover and the rear cover are made of metal materials, the front cover and the rear cover can be made of thinner steel sheets, and the casing can be designed to be thinner, thereby greatly increasing the volume of the cavity in the casing .
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 (10)

  1. 一种扬声器箱，其包括具有收容空间的壳体和固定收容于所述收容空间内的发声单体，所述发声单体包括用于振动发声的振膜，其特征在于，所述壳体包括由金属材料制成的前盖以及盖设固定于所述前盖的由金属材料制成的后盖，所述前盖和所述后盖共同围成所述收容空间，所述扬声器箱还包括位于所述收容空间内的由塑料制成的支架，所述支架包括与所述前盖固定连接的呈环状的支架本体以及由所述支架本体延伸形成的具有导声通道的导声部，所述发声单体设有所述振膜的一侧支撑固定于所述支架本体并与所述前盖间隔围成前声腔，所述导声通道与所述前声腔连通；所述壳体设有贯穿其上的出声口，所述导声部抵接于所述壳体并完全覆盖所述出声口，所述导声通道与所述出声口连通；所述前盖和/或所述后盖向远离所述发声单体的方向凸出延伸形成定位片，所述定位片用于将所述壳体装配于外部终端；所述发声单体、所述前盖、所述支架及所述后盖共同围成密闭的后声腔。A loudspeaker box, comprising a housing with an accommodation space and a sound-generating unit fixedly accommodated in the accommodation space, the sound-generating unit comprising a vibrating membrane for vibrating and sounding, characterized in that the housing comprises A front cover made of metal material and a back cover made of metal material covered and fixed on the front cover, the front cover and the rear cover together enclose the receiving space, and the speaker box further includes A bracket made of plastic located in the receiving space, the bracket includes a ring-shaped bracket body fixedly connected with the front cover and a sound guide portion with a sound guide channel extending from the bracket body, One side of the sound-generating unit provided with the vibrating membrane is supported and fixed to the bracket body and is spaced apart from the front cover to form a front sound cavity, and the sound guide channel is communicated with the front sound cavity; There is a sound outlet passing through it, the sound guide part abuts on the casing and completely covers the sound outlet, and the sound guide channel communicates with the sound outlet; the front cover and/or The rear cover protrudes and extends in a direction away from the sound-generating unit to form a positioning piece, and the positioning piece is used for assembling the casing to an external terminal; the sound-generating unit, the front cover, and the bracket and the rear cover together to form a closed rear acoustic cavity.
  2. 根据权利要求1所述的扬声器箱，其特征在于，所述定位片位于所述前盖和所述后盖之间的连接处，所述前盖和/或所述后盖设置所述定位片的位置的相对两侧均凹陷形成弧形槽，所述弧形槽内打胶形成密封。The speaker box according to claim 1, wherein the positioning piece is located at the connection between the front cover and the rear cover, and the front cover and/or the rear cover are provided with the positioning piece The opposite sides of the position are concave to form arc-shaped grooves, and glue is applied in the arc-shaped grooves to form a seal.
  3. 根据权利要求1所述的扬声器箱，其特征在于，所述定位片设有贯穿其上的定位孔。The speaker box according to claim 1, wherein the positioning piece is provided with a positioning hole therethrough.
  4. 根据权利要求3所述的扬声器箱，其特征在于，所述定位片包括至少两个，所述至少两个定位片设置于所述壳体的相对两侧。The speaker box according to claim 3, wherein the positioning piece comprises at least two, and the at least two positioning pieces are arranged on opposite sides of the housing.
  5. 根据权利要求1所述的扬声器箱，其特征在于，所述前盖包括前盖本体以及由所述前盖本体的外周缘向所述后盖方向延伸的前盖侧壁；所述后盖包括与所述前盖本体相对间隔设置的后盖本体以及由的述后盖本体的周缘向所述前盖方向弯折延伸并与所述前盖侧壁抵接固定的后盖侧壁，所述定位片由所述前盖侧壁靠近所述后盖侧壁的一端向远离所述发声单体的方向凸出延伸形成，所述弧形槽由所述前盖侧壁靠近所述后盖侧壁的一端向远离所述后盖侧壁凹陷形成。The speaker box according to claim 1, wherein the front cover includes a front cover body and a front cover side wall extending from the outer peripheral edge of the front cover body toward the rear cover; the rear cover includes The rear cover body disposed opposite to the front cover body and the rear cover side wall which is bent and extended in the direction of the front cover from the peripheral edge of the rear cover body and abutted and fixed with the side wall of the front cover, the The positioning piece is formed by protruding and extending from one end of the side wall of the front cover close to the side wall of the rear cover in a direction away from the sounding unit, and the arc groove is formed by the side wall of the front cover close to the side of the rear cover One end of the wall is formed concavely away from the side wall of the rear cover.
  6. 根据权利要求5所述的扬声器箱，其特征在于，所述支架本体固定于所述前盖本体；所述出声口贯穿所述前盖侧壁设置，所述导声部抵接于所述前盖侧壁。The speaker box according to claim 5, wherein the bracket body is fixed to the front cover body; the sound outlet is provided through the side wall of the front cover, and the sound guide part abuts against the front cover Front cover side wall.
  7. 根据权利要求6所述的扬声器箱，其特征在于，所述支架还包括形成于所述支架本体内周缘的定位台阶，所述发声单体支撑于所述定位台阶，所述支架本体环绕所述发声单体的周侧设置并与所述发声单体形成密封固定。The speaker box according to claim 6, wherein the bracket further comprises a positioning step formed on the inner periphery of the bracket body, the sound generating unit is supported on the positioning step, and the bracket body surrounds the The peripheral side of the sound-generating unit is arranged and sealed and fixed with the sound-generating unit.
  8. 根据权利要求6所述的扬声器箱，其特征在于，所述扬声器箱还包括位于所述后声腔内的透气隔离件，所述透气隔离件贴设于所述发声单体并将所述发声单体从所述后声腔内分隔。The speaker box according to claim 6, characterized in that, the speaker box further comprises a ventilating spacer located in the rear acoustic cavity, the ventilating spacer being attached to the sound-generating unit and making the sound-generating unit The body is separated from the rear acoustic cavity.
  9. 根据权利要求8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、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壳体间隔设置，所述隔离件固定部固定于所述支架本体靠近所述后盖的一侧；所述透气隔离件、所述支架、所述前盖及所述后盖共同围成灌粉空间，所述灌粉空间内填充有吸音材料。The speaker box according to claim 8, wherein the ventilating spacer comprises a spacer body which is spaced apart from the back cover and is attached to the sound-generating unit, and which extends from the periphery of the spacer body to the spacer body. The isolator extension part bent and extended in the bracket direction and the spacer fixing part bent and extended from one end of the isolator extension part away from the isolator body; the isolator extension part is arranged at intervals from the housing , the spacer fixing part is fixed on the side of the bracket body close to the rear cover; the breathable spacer, the bracket, the front cover and the rear cover together form a powder filling space, the The powder filling space is filled with sound-absorbing material.
  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支架本体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贯穿所述壳体的延伸臂；所述隔离件固定部压设固定于所述导电件本体远离所述支架本体的一侧。The speaker box according to claim 9, 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 bracket body close to the A conductive member body at one end of the back cover, a connecting arm extending from the two ends of the conductive member body towards the sounding unit and being fixed and electrically connected to the sounding unit, and a connecting arm extending from the conductive member body to the sounding unit away from the sounding unit The single body extends in a direction and penetrates the extension arm of the casing; the spacer fixing portion is press-fitted and fixed on the side of the conductive member body away from the bracket body.
PCT/CN2020/124117 2020-08-27 2020-10-27 Loudspeaker box WO2022041454A1 (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108307277A (en) * 2018-01-05 2018-07-20 瑞声科技(新加坡)有限公司 Loudspeaker enclosure
CN207869368U (en) * 2018-01-27 2018-09-14 瑞声科技(新加坡)有限公司 Loudspeaker enclosure
CN207968760U (en) * 2018-01-04 2018-10-12 瑞声科技(新加坡)有限公司 Loudspeaker enclosure
CN208353585U (en) * 2018-01-04 2019-01-08 瑞声科技(新加坡)有限公司 Loudspeaker enclosure
US20190200118A1 (en) * 2017-12-21 2019-06-27 AAC Technologies Pte. Ltd. Speaker Box
CN209120386U (en) * 2018-12-03 2019-07-16 歌尔科技有限公司 A kind of loudspeaker
CN210093440U (en) * 2019-06-30 2020-02-18 瑞声科技(新加坡)有限公司 Loudspeaker box

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105657618B (en) * 2016-03-21 2019-06-07 歌尔股份有限公司 A kind of loudspeaker module casing and the manufacturing method for loudspeaker module casing
CN209390341U (en) * 2018-12-28 2019-09-13 瑞声科技(新加坡)有限公司 Loudspeaker enclosure and mobile terminal device
CN210641067U (en) * 2019-05-21 2020-05-29 瑞声科技(新加坡)有限公司 Loudspeaker box
CN211321501U (en) * 2020-01-09 2020-08-21 瑞声科技(新加坡)有限公司 Loudspeaker box

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190200118A1 (en) * 2017-12-21 2019-06-27 AAC Technologies Pte. Ltd. Speaker Box
CN207968760U (en) * 2018-01-04 2018-10-12 瑞声科技(新加坡)有限公司 Loudspeaker enclosure
CN208353585U (en) * 2018-01-04 2019-01-08 瑞声科技(新加坡)有限公司 Loudspeaker enclosure
CN108307277A (en) * 2018-01-05 2018-07-20 瑞声科技(新加坡)有限公司 Loudspeaker enclosure
CN207869368U (en) * 2018-01-27 2018-09-14 瑞声科技(新加坡)有限公司 Loudspeaker enclosure
CN209120386U (en) * 2018-12-03 2019-07-16 歌尔科技有限公司 A kind of loudspeaker
CN210093440U (en) * 2019-06-30 2020-02-18 瑞声科技(新加坡)有限公司 Loudspeaker box

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