WO2022041455A1 - 扬声器箱 - Google Patents
扬声器箱 Download PDFInfo
- Publication number
- WO2022041455A1 WO2022041455A1 PCT/CN2020/124119 CN2020124119W WO2022041455A1 WO 2022041455 A1 WO2022041455 A1 WO 2022041455A1 CN 2020124119 W CN2020124119 W CN 2020124119W WO 2022041455 A1 WO2022041455 A1 WO 2022041455A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sound
- upper cover
- bracket
- side wall
- speaker box
- Prior art date
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 7
- 239000007769 metal material Substances 0.000 claims abstract description 7
- 125000006850 spacer group Chemical group 0.000 claims description 27
- 239000000843 powder Substances 0.000 claims description 26
- 238000007789 sealing Methods 0.000 claims description 12
- 239000011358 absorbing material Substances 0.000 claims description 7
- 239000012212 insulator Substances 0.000 claims 3
- 239000012528 membrane Substances 0.000 claims 1
- 239000002184 metal Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
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
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- 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
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2807—Enclosures comprising vibrating or resonating arrangements
- H04R1/2811—Enclosures comprising vibrating or resonating arrangements for loudspeaker transducers
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, a sound-generating unit fixedly accommodated in the housing, and a bracket made of plastic material, wherein the sound-generating unit includes a sound-generating unit for vibrating and sounding.
- the casing is made of a metal material, and the casing includes an upper cover and a lower cover that are respectively covered on opposite sides of the sound-emitting unit along the vibration direction of the diaphragm;
- the upper cover includes The upper cover plate opposite to the lower cover, the side wall of the upper cover that is bent and extended in the direction of the lower cover from the peripheral edge of the upper cover plate and is fixedly connected with the lower cover, penetrates the side of the upper cover A sound outlet provided on the wall and a side wall extension extending from the side wall of the upper cover to the direction close to the sound producing unit and surrounding the sound outlet;
- the ring-shaped bracket fixing part of the upper cover plate and the bracket sound guiding part extending from the bracket fixing part to the direction away from the sound-generating unit, the sound-generating unit is supported by one side of the diaphragm
- the bracket fixing part is arranged at a distance from the upper cover, and the side of the bracket fixing part away from the upper cover surrounds the peripheral side of the sound-generating unit and is sealed
- the sound producing unit, the bracket and the upper cover together form a front acoustic cavity
- the sound producing unit, the bracket, the upper cover and the lower cover together form a rear sound cavity
- the sound guiding part of the bracket is provided with There is a sound guide channel running through it, and the sound guide channel communicates the front sound cavity with the outside world through the sound outlet
- the side wall extension is arranged around the sound guide channel and is embedded and fixed on the bracket Voice guide.
- the bracket fixing part includes a ring-shaped fixing part body fixed on the upper cover plate, and a peripheral edge of the fixing part body is bent in a direction of the lower cover along the circumference of the sound-emitting unit
- the extension wall of the fixed part is folded and extended and is annular, and the extended wall of the fixed part forms a seal with the peripheral side of the sounding unit.
- the upper cover and the bracket are integrally injection-molded.
- the speaker box further includes a buffer member attached to the side wall of the upper cover, the buffer member is provided with a through hole passing through the buffer member, and the through hole communicates with the sound guide channel.
- 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 air-permeable spacer includes an spacer body that is spaced apart from the lower 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.
- the extension part of the isolator and the side wall of the upper cover are spaced apart and fixed to the bracket fixing part; the air-permeable isolator, the bracket, the upper cover and the lower cover together form a powder filling space, the powder filling space is used to fill the sound-absorbing material.
- the shell is provided with a powder filling hole passing through it, and the powder filling hole communicates with the rear acoustic cavity;
- the speaker box further includes a sealing cover attached to the shell, the sealing cover Completely cover the filling hole.
- the powder filling hole is arranged on the side wall of the upper cover.
- the speaker box further includes a conductive terminal connecting the sound generating unit with an external electrical signal, and the conductive terminal penetrates through the casing and is exposed to the casing.
- the side wall of the upper cover is provided with a receiving groove formed by an end of the upper cover that is recessed toward the lower cover plate, and the conductive terminal extends to the outside of the casing through the receiving groove.
- the portion of the conductive end located in the receiving groove is flush with the side of the upper cover sidewall close to the lower cover, and the lower cover is simultaneously pressed on the conductive terminal and the sidewall of the upper cover to form a sealing and fixing .
- 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, a sound-generating unit fixedly accommodated in the housing, and a bracket made of plastic material, wherein the sound-generating unit includes a sound-generating unit for vibrating and sounding.
- the casing is made of a metal material, and the casing includes an upper cover and a lower cover that are respectively covered on opposite sides of the sound-emitting unit along the vibration direction of the diaphragm;
- the upper cover includes The upper cover plate opposite to the lower cover, the side wall of the upper cover that is bent and extended in the direction of the lower cover from the peripheral edge of the upper cover plate and is fixedly connected with the lower cover, penetrates the side of the upper cover A sound outlet provided on the wall and a side wall extension extending from the side wall of the upper cover to the direction close to the sound producing unit and surrounding the sound outlet;
- the ring-shaped bracket fixing part of the upper cover plate and the bracket sound guiding part extending from the bracket fixing part to the direction away from the sound-generating unit, the sound-generating unit is supported by one side of the diaphragm
- the bracket fixing part is arranged at a distance from the upper cover, and the side of the bracket fixing part away from the upper cover surrounds the peripheral side of the sound-generating unit and is sealed
- the sound producing unit, the bracket and the upper cover together form a front acoustic cavity
- the sound producing unit, the bracket, the upper cover and the lower cover together form a rear sound cavity
- the sound guiding part of the bracket is provided with There is a sound guide channel running through it, and the sound guide channel communicates the front sound cavity with the outside world through the sound outlet
- the side wall extension is arranged around the sound guide channel and is embedded and fixed on the bracket Voice guide.
- the bracket fixing part includes a ring-shaped fixing part body fixed on the upper cover plate, and a peripheral edge of the fixing part body is bent in a direction of the lower cover along the circumference of the sound-emitting unit
- the extension wall of the fixed part is folded and extended and is annular, and the extended wall of the fixed part forms a seal with the peripheral side of the sounding unit.
- the upper cover and the bracket are integrally injection-molded.
- the speaker box further includes a buffer member attached to the side wall of the upper cover, the buffer member is provided with a through hole passing through the buffer member, and the through hole communicates with the sound guide channel.
- 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 air-permeable spacer includes an spacer body that is spaced apart from the lower 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.
- the extension part of the isolator and the side wall of the upper cover are spaced apart and fixed to the bracket fixing part; the air-permeable isolator, the bracket, the upper cover and the lower cover together form a powder filling space, the powder filling space is used to fill the sound-absorbing material.
- the shell is provided with a powder filling hole passing through it, and the powder filling hole communicates with the rear acoustic cavity;
- the speaker box further includes a sealing cover attached to the shell, the sealing cover Completely cover the filling hole.
- the powder filling hole is arranged on the side wall of the upper cover.
- the speaker box further includes a conductive terminal connecting the sound generating unit with an external electrical signal, and the conductive terminal penetrates through the casing and is exposed to the casing.
- the side wall of the upper cover is provided with a receiving groove formed by an end of the upper cover that is recessed toward the lower cover plate, and the conductive terminal extends to the outside of the casing through the receiving groove.
- the portion of the conductive end located in the receiving groove is flush with the side of the upper cover sidewall close to the lower cover, and the lower cover is simultaneously pressed on the conductive terminal and the sidewall of the upper cover to form a sealing and fixing .
- 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 housing 1, a sound-generating unit 2 fixedly accommodated in the housing 1, and a bracket 3 located in the housing 1,
- the casing 1 is made of metal material.
- the casing 1 includes an upper cover 11 and a lower cover 12 which are respectively covered on opposite sides of the sound generating unit 2 along the vibration direction of the diaphragm 21 .
- the bracket 3 is made of plastic material and has an annular structure.
- the bracket 3 is fixed to the upper cover 11 .
- the sounding unit 2 is supported on the bracket 3 .
- the bracket 3 surrounds the peripheral side of the sound-generating unit 2 and is sealed and fixed with the sound-generating unit 2 .
- the sounding unit 2 , the bracket 3 and the upper cover 11 together form a front sound cavity 101 .
- the sound generating unit 2 includes a diaphragm 21 for vibrating and sounding.
- the diaphragm 21 is accommodated in the front acoustic cavity 101 .
- the sounding unit 2 , the bracket 3 , the upper cover 11 and the lower cover 12 together form a rear sound cavity 102 .
- the combined structure of the upper cover 11 , the lower cover 12 and the bracket 3 because the upper cover 11 and the lower cover 12 are made of metal materials, the bracket 3 and the upper cover 11 made of plastic materials are used.
- Fixing is used to support and fix the sound-emitting unit 2.
- it can not only be designed to be thinner than the all-plastic shell structure, but also effectively assemble the sound-emitting unit 2, so as to be extremely
- the volume of the cavity in the casing 1 is greatly increased, and the volume of the rear acoustic cavity 10 enclosed by the sounding unit 2 and the casing 1 is effectively increased, thereby improving the acoustic performance of the speaker box 100, especially is the low frequency acoustic performance.
- the upper cover 11 includes an upper cover plate 111 disposed opposite to the lower cover 12 , and is bent and extended in the direction of the upper cover 11 from the peripheral edge of the upper cover plate 111 and is connected to the lower cover 12 .
- the fixedly connected upper cover side wall 112 , the sound outlet 10 provided through the upper cover side wall 112 , and the sound outlet 10 extending from the upper cover side wall 112 toward the sounding unit 2 and surrounding the sound outlet 10 Sidewall extensions 113 are provided.
- the lower cover 12 and the upper cover side wall 112 of the upper cover 11 are welded to form a fixed shape.
- the upper cover 11 and the lower cover 12 can be designed to be thinner, and The fixing strength is more reliable.
- the bracket 3 includes a bracket fixing portion 31 located in the housing 1 and a bracket sound guiding portion 32 extending from the bracket fixing portion 31 to a direction away from the sound producing unit 2 ,
- the bracket fixing portion 31 is annular.
- the bracket fixing portion 31 is fixed to the upper cover plate 111 .
- the upper cover 11 and the bracket 3 are integrally injection-molded.
- the side of the sound generating unit 2 with the diaphragm 21 is supported by the bracket fixing portion 31 and is spaced from the upper cover 11 . That is to say, the side of the bracket fixing portion 31 away from the upper cover 11 surrounds the peripheral side of the sound-generating unit 2 and is sealed and fixed with the sound-generating unit 2, so that the rear acoustic cavity 10 forms a closed space, To improve low frequency acoustic performance.
- the bracket fixing portion 31 includes a ring-shaped fixing portion body 311 fixed on the upper cover plate 111 , and a peripheral edge of the fixing portion body 311 along the circumference of the sound-generating unit 2 .
- the lower cover 12 has a ring-shaped fixing portion extending wall 312 , which is bent and extended in the direction of the lower cover 12 .
- the fixing portion extending wall 312 forms a seal with the peripheral side of the sounding unit 2 . This structure makes the sealing between the bracket fixing portion 31 and the sounding unit 2 more firm and reliable.
- the bracket sound guiding portion 32 extends from the bracket fixing portion 31 in a direction away from the sound producing unit 2 .
- the sound-guiding portion 32 of the bracket is provided with a sound-guiding channel 320 extending therethrough, and the sound-guiding channel 320 communicates the front acoustic cavity 101 with the outside through the sound outlet 10 .
- the sidewall extension portion 113 is disposed around the sound guide channel 320 and is embedded and fixed to the sound guide portion 32 of the bracket. That is to say, the side wall extension portion 113 is inserted into the sound guide portion 32 of the bracket to form a fixation. This structure enhances the steel-plastic bonding force between the upper cover 11 and the bracket 3 , thereby making the speaker box 100 more reliable. Sex is high.
- 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 the rear sound cavity 102 can be filled with sound-absorbing materials.
- the ventilating spacer 4 includes a spacer body 41 that is spaced apart from the lower 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 extended spacer extension 42 is folded.
- the spacer extension portion 42 is spaced apart from the upper cover side wall 112 and fixed to the bracket fixing portion 31 .
- the breathable spacer 4, the bracket 3, the upper cover 11 and the lower cover 12 together form a powder filling space, and the powder filling space is used to fill sound-absorbing materials, such as sound-absorbing particles, sound-absorbing cotton, and the like.
- the housing 1 is provided with a powder filling hole 13 extending therethrough, and the powder filling hole 13 communicates the rear acoustic cavity 102 with the outside.
- the powder filling hole 13 is disposed on the side wall 112 of the upper cover.
- the speaker box 100 further includes a sealing cover 5 attached to the casing 1 , and the sealing cover 5 completely covers the powder filling hole 13 .
- the sealing cover 5 can seal the powder filling hole 13 after the sound-absorbing material is filled into the powder filling space through the powder filling hole 13 , thereby making the assembly of the speaker box 100 easier. Simple and reliable.
- the speaker box 100 further includes a conductive terminal 6 for connecting the sound generating unit 2 with external electrical signals.
- the conductive terminals 6 penetrate through the casing 1 and are partially exposed to the casing 1 .
- the side wall 112 of the upper cover is provided with a receiving groove 110 formed by its end close to the upper cover 11 which is recessed toward the plate of the lower cover 12 .
- the conductive terminals 6 pass through the receiving groove 110 . Extending to the outside of the housing 1 , the portion of the conductive end 6 located in the receiving groove 110 is flush with the side of the upper cover side wall 112 close to the lower cover 12 , and the lower cover 12 is pressed at the same time. Sealing and fixing are formed on the conductive terminal 6 and the side wall 112 of the upper cover. The structure is convenient for assembly and improves assembly efficiency.
- the speaker box 100 further includes a buffer member 7 attached to the side wall 112 of the upper cover.
- the buffer member 7 is provided with a through hole 70 therethrough.
- the through hole 70 communicates with the sound guide channel 320 .
- the upper cover and the lower cover of the casing are made of metal materials, and are fixed to the upper cover by brackets made of plastic materials to support and fix the sound-producing unit.
- the plastic bracket is combined with the metal upper cover, and the metal upper cover is combined with the metal lower cover.
- it can be designed to be thinner than the all-plastic shell structure, so that The volume of the cavity in the casing is greatly increased, and the volume of the rear acoustic cavity enclosed by the sound generating unit and the casing is effectively increased, thereby improving the acoustic performance of the speaker box, especially the low-frequency acoustic performance.
- the bracket is arranged into a bracket fixing part and a bracket sound guiding part, and a sound guiding channel that communicates the front acoustic cavity with the outside is arranged in the bracket sound guiding part, and then the upper cover of the upper cover is connected.
- the side wall of the cover is provided with a sound outlet and a side wall extension formed by the inner peripheral edge of the upper cover side wall extending in the direction of the sound-generating unit, and the side wall extension is arranged and embedded around the sound guide channel It is fixed on the sound guiding part of the bracket, and this structure enhances the steel-plastic bonding force between the upper cover and the bracket, so that the reliability of the speaker box is high.
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
本发明提供了一种扬声器箱，其包括壳体、发声单体以及由塑料材料制成的支架，壳体为金属材料制成，壳体包括上盖和下盖；上盖包括上盖板、上盖侧壁、出声口以及环绕出声口的侧壁延伸部；支架包括固定于上盖板的呈环状的支架固定部和支架导声部，发声单体支撑于支架固定部并与上盖间隔，支架固定部环绕发声单体的周侧并与发声单体形成密封固定，发声单体、支架及上盖共围成前声腔，发声单体、支架、上盖及下盖共同围成后声腔；支架导声部设有导声通道，导声通道经出声口将前声腔与外界连通；侧壁延伸部环绕导声通道设置并嵌设固定于支架导声部。与相关技术相比，本发明的扬声器箱腔体体积大，声学性能好。
Description
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。
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。
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。
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。
因此，有必要提供一种新的扬声器箱解决上述技术问题。
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。
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、固定收容于所述壳体内的发声单体以及由塑料材料制成的支架，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，所述壳体包括沿所述振膜的振动方向分别盖设于所述发声单体相对两侧的上盖和下盖；所述上盖包括与所述下盖相对设置的上盖板、由所述上盖板的周缘向所述下盖的方向弯折延伸并与所述下盖固定连接的上盖侧壁、贯穿所述上盖侧壁设置的出声口以及由所述上盖侧壁向靠近所述发声单体方向延伸并环绕所述出声口设置的侧壁延伸部；所述支架包括位于所述壳体内并固定于所述上盖板的呈环状的支架固定部和由所述支架固定部向远离所述发声单体的方向延伸的支架导声部，所述发声单体设有所述振膜的一侧支撑于所述支架固定部并与所述上盖间隔设置，所述支架固定部远离所述上盖的一侧环绕所述发声单体的周侧并与所述发声单体形成密封固定，所述发声单体、所述支架及所述上盖共围成前声腔，所述发声单体、所述支架、所述上盖及所述下盖共同围成后声腔；所述支架导声部设有贯穿其上的导声通道，所述导声通道经所述出声口将所述前声腔与外界连通；所述侧壁延伸部环绕所述导声通道设置并嵌设固定于所述支架导声部。
优选的，所述支架固定部包括固定于所述上盖板的呈环状的固定部本体和由所述固定部本体的周缘沿所述发声单体的周侧向所述下盖的方向弯折延伸且呈环状的固定部延伸壁，所述固定部延伸壁与所述发声单体的周侧形成密封。
优选的，所述上盖与所述支架为一体注塑成型。
优选的，所述扬声器箱还包括贴设于所述上盖侧壁的缓冲件，所述缓冲件设有贯穿其上的通孔，所述通孔与所述导声通道连通。
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。
优选的，所述透气隔离件包括与所述下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；所述隔离件延伸部与所述上盖侧壁间隔设置并固定于所述支架固定部；所述透气隔离件、所述支架、所述上盖及所述下盖共同围成灌粉空间，所述灌粉空间用于填充吸音材料。
优选的，所述壳体设有贯穿其上的灌粉孔，所述灌粉孔与所述后声腔连通；所述扬声器箱还包括贴设于所述壳体的密封盖，所述密封盖完全覆盖所述灌粉孔。
优选的，所述灌粉孔设置于所述上盖侧壁。
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端子，所述导电端子贯穿所述壳体并外露于所述壳体。
优选的，所述上盖侧壁设有由其靠近所述上盖的一端向所述下盖板方向凹陷形成的收容槽，所述导电端子经所述收容槽延伸至所述壳体外，所述导电端位于所述收容槽的部分与所述上盖侧壁靠近所述下盖的一侧平齐，所述下盖同时压设于所述导电端子及所述上盖侧壁形成密封固定。
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。
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、固定收容于所述壳体内的发声单体以及由塑料材料制成的支架，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，所述壳体包括沿所述振膜的振动方向分别盖设于所述发声单体相对两侧的上盖和下盖；所述上盖包括与所述下盖相对设置的上盖板、由所述上盖板的周缘向所述下盖的方向弯折延伸并与所述下盖固定连接的上盖侧壁、贯穿所述上盖侧壁设置的出声口以及由所述上盖侧壁向靠近所述发声单体方向延伸并环绕所述出声口设置的侧壁延伸部；所述支架包括位于所述壳体内并固定于所述上盖板的呈环状的支架固定部和由所述支架固定部向远离所述发声单体的方向延伸的支架导声部，所述发声单体设有所述振膜的一侧支撑于所述支架固定部并与所述上盖间隔设置，所述支架固定部远离所述上盖的一侧环绕所述发声单体的周侧并与所述发声单体形成密封固定，所述发声单体、所述支架及所述上盖共围成前声腔，所述发声单体、所述支架、所述上盖及所述下盖共同围成后声腔；所述支架导声部设有贯穿其上的导声通道，所述导声通道经所述出声口将所述前声腔与外界连通；所述侧壁延伸部环绕所述导声通道设置并嵌设固定于所述支架导声部。
优选的，所述支架固定部包括固定于所述上盖板的呈环状的固定部本体和由所述固定部本体的周缘沿所述发声单体的周侧向所述下盖的方向弯折延伸且呈环状的固定部延伸壁，所述固定部延伸壁与所述发声单体的周侧形成密封。
优选的，所述上盖与所述支架为一体注塑成型。
优选的，所述扬声器箱还包括贴设于所述上盖侧壁的缓冲件，所述缓冲件设有贯穿其上的通孔，所述通孔与所述导声通道连通。
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。
优选的，所述透气隔离件包括与所述下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；所述隔离件延伸部与所述上盖侧壁间隔设置并固定于所述支架固定部；所述透气隔离件、所述支架、所述上盖及所述下盖共同围成灌粉空间，所述灌粉空间用于填充吸音材料。
优选的，所述壳体设有贯穿其上的灌粉孔，所述灌粉孔与所述后声腔连通；所述扬声器箱还包括贴设于所述壳体的密封盖，所述密封盖完全覆盖所述灌粉孔。
优选的，所述灌粉孔设置于所述上盖侧壁。
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端子，所述导电端子贯穿所述壳体并外露于所述壳体。
优选的，所述上盖侧壁设有由其靠近所述上盖的一端向所述下盖板方向凹陷形成的收容槽，所述导电端子经所述收容槽延伸至所述壳体外，所述导电端位于所述收容槽的部分与所述上盖侧壁靠近所述下盖的一侧平齐，所述下盖同时压设于所述导电端子及所述上盖侧壁形成密封固定。
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：
图1为本发明扬声器箱的立体结构示意图；
图2为本发明扬声器箱的部分立体结构分解示意图；
图3为沿图1中A-A线的剖示图；
图4为图3中B所示部分放大图。
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。
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、固定收容于所述壳体1内的发声单体2以及位于所述壳体1内的支架3，
所述壳体1为金属材料制成。所述壳体1包括沿所述振膜21的振动方向分别盖设于所述发声单体2相对两侧的上盖11和下盖12。
所述支架3由塑料材料制成并呈环状结构。所述支架3固定于所述上盖11。
所述发声单体2支撑于所述支架3。所述支架3环绕所述发声单体2的周侧并与所述发声单体2形成密封固定。所述发声单体2、所述支架3以及所述上盖11共同围成前声腔101。
其中，所述发声单体2包括用于振动发声的振膜21。所述振膜21收容于所述前声腔101内。所述发声单体2、所述支架3、所述上盖11以及所述下盖12共同围成后声腔102。
上述结构中，所述上盖11、所述下盖12以及所述支架3的组合结构，因上盖11和下盖12为金属材料制成，通过塑料材料制成的支架3与上盖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。
具体的，所述上盖11包括与所述下盖12相对设置的上盖板111、由所述上盖板111的周缘向所述上盖11的方向弯折延伸并与所述下盖12固定连接的上盖侧壁112、贯穿所述上盖侧壁112设置的出声口10以及由所述上盖侧壁112向靠近所述发声单体2方向延伸并环绕所述出声口10设置的侧壁延伸部113。
本实施方式中，所述下盖12与所述上盖11的所述上盖侧壁112焊接形成固定，上盖11与下盖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。
所述支架3包括位于所述壳体1内的支架固定部31和由所述支架固定部31向远离所述发声单体2的方向延伸的支架导声部32，
所述支架固定部31呈环状。所述支架固定部31固定于所述上盖板111。本实施方式中，所述上盖11与所述支架3为一体注塑成型。
所述发声单体2设有所述振膜21的一侧支撑于所述支架固定部31并与所述上盖11间隔设置。也就是说，所述支架固定部31远离所述上盖11的一侧环绕所述发声单体2的周侧并与所述发声单体2形成密封固定，以使得后声腔10形成密闭空间，用以改善低频声学性能。
具体的，所述支架固定部31包括固定于所述上盖板111的呈环状的固定部本体311和由所述固定部本体311的周缘沿所述发声单体2的周侧向所述下盖12的方向弯折延伸且呈环状的固定部延伸壁312，所述固定部延伸壁312与所述发声单体2的周侧形成密封。该结构使得所述支架固定部31与所述发声单体2形成密封更为牢固，可靠性更高。
所述支架导声部32由所述支架固定部31向远离所述发声单体2的方向延伸。所述支架导声部32设有贯穿其上的导声通道320，所述导声通道320经所述出声口10将所述前声腔101与外界连通。所述侧壁延伸部113环绕所述导声通道320设置并嵌设固定于所述支架导声部32。也就是说，所述侧壁延伸部113插入所述支架导声部32内形成固定，该结构增强了上盖11与支架3之间的钢塑结合力，从而使得所述扬声器箱100的可靠性高。
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内可填充吸音材料。
具体的，所述透气隔离件4包括与所述下盖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。所述隔离件延伸部42与所述上盖侧壁112间隔设置并固定于所述支架固定部31。所述透气隔离件4、所述支架3、所述上盖11及所述下盖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。
为进一步改善所述灌粉空间组装填充吸音材料，所述壳体1设有贯穿其上的灌粉孔13，所述灌粉孔13将所述后声腔102与外界连通。本实施方式中，所述灌粉孔13设置于所述上盖侧壁112。所述扬声器箱100还包括贴设于所述壳体1的密封盖5，所述密封盖5完全覆盖所述灌粉孔13。所述密封盖5可以在通过所述灌粉孔13向所述灌粉空间填充吸音材料后，所述密封盖5将所述灌粉孔13密封，从而使得所述扬声器箱100的组装更为简单可靠。
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端子6。所述导电端子6贯穿所述壳体1并部分外露于所述壳体1。
本实施方式中，所述上盖侧壁112设有由其靠近所述上盖11的一端向所述下盖12板方向凹陷形成的收容槽110，所述导电端子6经所述收容槽110延伸至所述壳体1外，所述导电端6位于所述收容槽110的部分与所述上盖侧壁112靠近所述下盖12的一侧平齐，所述下盖12同时压设于所述导电端子6及所述上盖侧壁112形成密封固定。该结构方便装配，提高装配效率。
本实施方式中，4所述扬声器箱100还包括贴设于所述上盖侧壁112的缓冲件7。所述缓冲件7设有贯穿其上的通孔70。所述通孔70与所述导声通道320连通。该结构使得设置使得支架3与缓冲件7结构形成一体，外观整体美观度更优。
与相关技术相比，本发明的扬声器箱中，所述壳体的上盖和下盖由金属材料制成，通过塑料材料制成的支架与上盖固定，用以支撑固定发声单体，上述结构中，塑料的支架与金属的上盖组合，金属的上盖与金属的下盖组合，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。另外，并本发明的扬声器箱中通过将支架设置成支架固定部和支架导声部，并通过在支架导声部设置将所述前声腔与外界连通的导声通道，再将上盖的上盖侧壁设置出声口和由所述上盖侧壁的内周缘向所述发声单体的方向延伸形成的侧壁延伸部，并将侧壁延伸部环绕所述导声通道设置并嵌设固定于所述支架导声部，该结构增强了上盖与支架之间的钢塑结合力，从而使得所述扬声器箱的可靠性高
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。
Claims (10)
- 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，所述壳体包括沿所述振膜的振动方向分别盖设于所述发声单体相对两侧的上盖和下盖；所述上盖包括与所述下盖相对设置的上盖板、由所述上盖板的周缘向所述下盖的方向弯折延伸并与所述下盖固定连接的上盖侧壁、贯穿所述上盖侧壁设置的出声口以及由所述上盖侧壁向靠近所述发声单体方向延伸并环绕所述出声口设置的侧壁延伸部；所述扬声器箱还包括由塑料材料制成的支架，所述支架包括位于所述壳体内并固定于所述上盖板的呈环状的支架固定部和由所述支架固定部向远离所述发声单体的方向延伸的支架导声部，所述发声单体设有所述振膜的一侧支撑于所述支架固定部并与所述上盖间隔设置，所述支架固定部远离所述上盖的一侧环绕所述发声单体的周侧并与所述发声单体形成密封固定，所述发声单体、所述支架及所述上盖共围成前声腔，所述发声单体、所述支架、所述上盖及所述下盖共同围成后声腔；所述支架导声部设有贯穿其上的导声通道，所述导声通道经所述出声口将所述前声腔与外界连通；所述侧壁延伸部环绕所述导声通道设置并嵌设固定于所述支架导声部。
- 根据权利要求1所述的扬声器箱，其特征在于，所述支架固定部包括固定于所述上盖板的呈环状的固定部本体和由所述固定部本体的周缘沿所述发声单体的周侧向所述下盖的方向弯折延伸且呈环状的固定部延伸壁，所述固定部延伸壁与所述发声单体的周侧形成密封。
- 根据权利要求1所述的扬声器箱，其特征在于，所述上盖与所述支架为一体注塑成型。
- 根据权利要求1所述的扬声器箱，其特征在于，所述扬声器箱还包括贴设于所述上盖侧壁的缓冲件，所述缓冲件设有贯穿其上的通孔，所述通孔与所述导声通道连通。
- 根据权利要求1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。
- 根据权利要求5所述的扬声器箱，其特征在于，所述透气隔离件包括与所述下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；所述隔离件延伸部与所述上盖侧壁间隔设置并固定于所述支架固定部；所述透气隔离件、所述支架、所述上盖及所述下盖共同围成灌粉空间，所述灌粉空间用于填充吸音材料。
- 根据权利要求5所述的扬声器箱，其特征在于，所述壳体设有贯穿其上的灌粉孔，所述灌粉孔与所述后声腔连通；所述扬声器箱还包括贴设于所述壳体的密封盖，所述密封盖完全覆盖所述灌粉孔。
- 根据权利要求7所述的扬声器箱，其特征在于，所述灌粉孔设置于所述上盖侧壁。
- 根据权利要求2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端子，所述导电端子贯穿所述壳体并外露于所述壳体。
- 根据权利要求9所述的扬声器箱，其特征在于，所述上盖侧壁设有由其靠近所述上盖的一端向所述下盖板方向凹陷形成的收容槽，所述导电端子经所述收容槽延伸至所述壳体外，所述导电端位于所述收容槽的部分与所述上盖侧壁靠近所述下盖的一侧平齐，所述下盖同时压设于所述导电端子及所述上盖侧壁形成密封固定。
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| CN112637753B (zh) * | 2020-12-02 | 2022-09-06 | 益阳市信维声学科技有限公司 | 一种扬声器模组的制备方法 |
| CN112468911B (zh) * | 2020-12-18 | 2022-05-31 | 瑞声新能源发展(常州)有限公司科教城分公司 | 扬声器箱及其装配工艺 |
| CN112468910B (zh) * | 2020-12-18 | 2022-04-26 | 瑞声新能源发展(常州)有限公司科教城分公司 | 扬声器箱及其装配工艺 |
| CN112468906B (zh) * | 2020-12-18 | 2022-05-03 | 瑞声新能源发展(常州)有限公司科教城分公司 | 扬声器箱及其装配工艺 |
| CN112616101B (zh) * | 2020-12-30 | 2023-11-24 | 歌尔股份有限公司 | 扬声器模组和电子设备 |
| CN113225653B (zh) * | 2021-04-30 | 2023-04-25 | 歌尔股份有限公司 | 发声器件和电子设备 |
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