WO2022041435A1 - 扬声器箱 - Google Patents
扬声器箱 Download PDFInfo
- Publication number
- WO2022041435A1 WO2022041435A1 PCT/CN2020/123386 CN2020123386W WO2022041435A1 WO 2022041435 A1 WO2022041435 A1 WO 2022041435A1 CN 2020123386 W CN2020123386 W CN 2020123386W WO 2022041435 A1 WO2022041435 A1 WO 2022041435A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sound
- bracket
- wall
- fixing ring
- guide member
- Prior art date
Links
- 239000007769 metal material Substances 0.000 claims abstract description 19
- 230000004308 accommodation Effects 0.000 claims abstract description 7
- 125000006850 spacer group Chemical group 0.000 claims description 38
- 239000000843 powder Substances 0.000 claims description 24
- 238000007789 sealing Methods 0.000 claims description 18
- 239000011358 absorbing material Substances 0.000 claims description 12
- 239000003292 glue Substances 0.000 claims description 7
- 239000012528 membrane Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 2
- 230000001755 vocal effect Effects 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004021 metal welding 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
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 purpose of the present invention is to provide a speaker box with good low-frequency acoustic 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 casing is made of a metal material, and the casing is provided with a sound outlet that runs through it along the vibration direction perpendicular to the diaphragm and communicates with the outside world;
- the speaker box also includes a sound outlet that is fixedly accommodated in the accommodation space
- a bracket made of metal material inside and a sound guide member the bracket is provided with a give-away port opposite to the sound outlet, and the sound guide member is located at the give-away port and the sound outlet and the opposite sides of the sound guide member are respectively welded and fixed to the casing and the bracket, and the sound guide member is arranged around the sound outlet and forms a sound guide channel together with the casing;
- the side of the sound-generating unit provided with the diaphragm is supported and fixed to the bracket and is
- the sound-generating unit, the bracket and the shell together form a front sound cavity.
- the front sound cavity is communicated with the sound outlet through the sound guide channel to form a side sound emitting structure; the bracket, the sound guide member, the sound producing unit and the shell together form a closed rear sound cavity.
- the bracket includes a first wall fixed to the casing and a second wall that is bent and extended from the outer periphery of the first wall along the vibration direction, and the abdication opening simultaneously penetrates the
- the first wall and the second wall are arranged, the sound guide is fixedly connected to the first wall, and the sound generating unit is fixedly supported on the second wall.
- the bracket further includes a flange that is bent and extended from the outer periphery of the second wall along the outer periphery of the sound-generating unit, the flange is arranged around the outer periphery of the sound-generating unit and is connected with the sound-generating unit.
- the sound-generating unit forms a hermetic fixation.
- the housing comprises a ring-shaped fixing ring and an upper cover plate and a lower cover plate which are respectively covered and fixed on opposite sides of the fixing ring and together with the fixing ring to enclose the receiving space;
- the sound outlet is arranged through the fixing ring, the first wall is fixed on the upper cover plate, and the front sound cavity is jointly enclosed by the sound producing unit, the first wall and the upper cover plate;
- the sound guide member is fixed on the upper cover plate and is abutted and fixed on the fixing ring, and the sound guide channel is jointly formed by the sound guide member, the fixing ring and the upper cover plate.
- the sound guide member includes a first section spaced from the upper cover plate and a second section bent and extended from opposite ends of the first section to the upper cover plate, the second section
- the segment is fixedly connected to the first wall and is fixedly supported on the upper cover plate, the upper cover plate is provided with a glue-accommodating hole therethrough, and the glue-accommodating hole is connected with the second section and the first section.
- the connection positions between the walls are oppositely arranged; the connection position between the second section and the first wall is filled with glue through the glue container hole to form a sealing and fixing of the second section and the first wall .
- the fixing ring includes a fixing ring main body and a receiving step formed by the fixing ring main body being bent and concave in a direction close to the sound-emitting unit, the receiving step is provided with a penetrating part and connecting with the rear
- the powder filling hole communicates with the acoustic cavity, and the powder filling hole communicates with the rear acoustic cavity;
- the speaker box further includes a sealing cover fixed on the receiving step and completely covering the powder filling hole.
- the accommodating step includes two connecting walls that are respectively bent and extended from the fixing ring main body in a direction close to the sound-emitting unit and are arranged at intervals, and two connecting walls that are arranged at intervals from the fixing ring main body and are connected to the two said
- the bottom wall connected by the connecting wall, the powder filling hole is arranged through the bottom wall, and the sealing cover is covered and fixed on the bottom wall.
- the outer side of the sealing cover away from the sound-generating unit is flush with the outer side of the fixing ring body on the side away from the sound-generating unit.
- the speaker box further includes a ventilating spacer located in the rear acoustic cavity, and the ventilating spacer is fixed to the bracket and separates the sound-generating unit from the rear acoustic cavity.
- the ventilating spacer includes a spacer body that is spaced apart from the lower cover plate and is attached to the sound-generating unit, and a spacer that is bent and extended from the periphery of the spacer body toward the bracket. an extension part 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 is spaced from the casing, and the spacer fixing part is connected to the spacer
- the flanging is sealed and fixed; the air-permeable spacer, the bracket, the sound guide and the shell together form a powder filling space, and the sound-absorbing material is filled in the powder filling space through the powder filling hole , the sealing cover encapsulates the sound-absorbing material in the powder filling space.
- the shell is made of metal material, and the shell is provided with a sound outlet passing through it along the vibration direction of the vertical diaphragm and communicating with the outside world;
- the speaker box also includes a fixed A bracket and a sound guide that are accommodated in the accommodating space and are made of metal material, the bracket is provided with an opening that is opposite to the sound outlet, the sound guide is located between the opening and the sound outlet, and the sound guide is The opposite sides of the sound-generating unit are welded and fixed to the shell and the bracket respectively, and the sound-guiding member is arranged around the sound outlet and forms a sound-guiding channel together with the shell.
- the sound-generating unit, the support and the shell together form a front sound cavity, and the front sound cavity is communicated with the sound outlet through the sound guide channel to form a side sound-emitting structure;
- the sounding unit is supported by a bracket made of metal material, which can It is made of thinner steel sheet.
- the arrangement of the bracket of the present invention effectively reduces the volume of the rear acoustic cavity occupied by the bracket and ensures the volume of the rear acoustic cavity, thereby improving the 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 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 schematic diagram of the three-dimensional structure assembly of the upper cover plate, the bracket and the sound guide according to the present invention
- Fig. 5 is an enlarged view of the part shown in C in Fig. 4;
- Fig. 6 is a sectional view along line A-A in Fig. 1;
- FIG. 7 is an enlarged view of the part shown in B in FIG. 6 .
- the present invention provides a speaker box 100 , which includes a housing 1 having an accommodation space 10 , a sounding unit 2 fixedly accommodated in the accommodation space 10 , and a speaker box 2 fixedly accommodated in the accommodation space 10 .
- the bracket 3 in the space 10 and the sound guide member 4 fixedly connected to the bracket 3 , the bracket 3 , the sound guide member 4 , the sound generating unit 2 and the housing 1 together form a rear acoustic cavity 102 .
- the casing 1 is made of a metal material, and it can be a split structure or an integrated structure.
- the casing 1 is a split structure, which includes a metal material.
- a ring-shaped fixing ring 11 and an upper cover 12 and a lower cover 13 which are respectively covered and fixed on opposite sides of the fixing ring 11 , the upper cover 12 , the lower cover 13 and the fixing ring 11 together enclose the receiving space 10 , and the fixing ring 11 is provided with a sound outlet 110 penetrating through it and communicating with the outside world.
- the sound-generating unit 2 includes a vibrating membrane 21 for vibrating and sounding.
- the side of the sound-generating unit 2 with the vibrating membrane 21 is fixedly supported on the bracket 3 and is sealed and fixed with the bracket 3, thereby , the sound-producing unit 2, the bracket 3, the sound-guiding member 4, the upper cover 12, the lower cover 13 and the fixing ring 11 together form the airtight rear sound cavity 102,
- the sound-generating unit 2 is spaced from the housing 1 , the sound-generating unit 2 , the bracket 3 and the housing 1 together form a front sound cavity 101 , and the sound outlet 110 is perpendicular to the diaphragm.
- the vibration direction of 21 is provided through the fixing ring 11 .
- the bracket 3 and the sound guide member 4 are respectively made of metal materials, the bracket 3 is fixedly connected with the front cover 11 , and the bracket 3 is provided with a space opposite to the sound outlet 110 .
- the sound guide member 4 is located between the escape port 30 and the sound outlet 110, and the opposite sides of the sound guide member 4 are welded and fixed to the housing 1 and the bracket respectively. 3. This arrangement enables the assembly between the sound guide 4 and the housing 1 and the bracket 3 respectively; the sound guide 4 is arranged around the sound outlet 110 and is common with the housing 1 A sound guide channel 40 is formed.
- the bracket 3 includes a first wall 31 fixed to the housing 1 and a second wall 32 bent and extended from the outer periphery of the first wall 31 along the vibration direction.
- the port 30 is disposed through the first wall 31 and the second wall 32 at the same time; the sound guide 4 is fixedly connected to the first wall 31 , and the sound producing unit 2 is fixedly supported on the second wall 32 , the sounding unit 2 , the first wall 31 and the upper cover 12 of the casing 1 together form the front sound cavity 101 , and the front sound cavity 101 communicates with the outlet through the sound guide channel 40 .
- the sound ports 110 are communicated to form the side-emitting structure of the speaker box 100 .
- the first wall 31 is fixedly supported on the upper cover plate 12 , and the front acoustic cavity 102 is jointly enclosed by the sounding unit 2 , the first wall 31 and the upper cover plate 12 ;
- the sound guide member 4 is fixedly supported on the upper cover plate 12 and abutted on the fixing ring 11 , and the sound guide channel 40 is formed by the sound guide member 4 , the fixing ring 11 and the upper cover plate. 12 form together.
- the bracket 3 further includes a curve formed by the outer periphery of the second wall 32 along the outer periphery of the sound-emitting unit 2 .
- Fold the extended flange 33, the flange 33 is arranged around the outer periphery of the sounding unit 2 and is sealed and fixed with the sounding unit 2. This setting effectively ensures that the rear acoustic cavity 102 forms a closed space, So as to improve the low frequency acoustic performance.
- the fixing ring 11 , the upper cover 12 , the lower cover 13 and the bracket 3 are combined structures, and the fixing ring 11 , the upper cover 12 and the lower cover 13 are all made of metal materials.
- the three can be made of relatively thin steel sheets.
- the upper cover plate 12 and the lower cover plate 13 can be fixed with the fixing ring 11 by metal welding.
- the bracket 3 made of metal material Supporting the sound-producing unit 2 the bracket 3 can be made of a relatively thin steel sheet.
- the arrangement of the bracket 2 of the present invention effectively reduces the volume of the rear acoustic cavity 102 occupied by the bracket 3, ensuring that The volume of the rear acoustic cavity 102 is reduced, thereby improving the low frequency acoustic performance.
- the sound guide 4 includes a first section 41 spaced from the upper cover 12 and a second section bent and extended from opposite ends of the first section 41 to the upper cover 12 42 , the second section 42 is welded and fixed to the first wall 31 , and the second section 42 is fixedly supported on the upper cover plate 12 .
- the upper cover 12 is provided with a glue container hole 120 therethrough, and the container
- the glue hole 120 is arranged opposite to the connection position between the second section 42 and the first wall 31; The position is filled with glue so that the second section 42 and the first wall 31 are sealed and fixed, which can effectively prevent air leakage between the bracket 3 and the sound guide member 4 and improve the sealing between the two. .
- the fixing ring 11 includes a fixing ring main body 111 and the fixing ring
- the receiving step 112 is formed by bending and concave in the direction of the body 2.
- the receiving step 112 is provided with a powder filling hole 1120 passing through it and communicating with the rear acoustic cavity 102.
- the powder filling hole 1120 communicates with the rear acoustic cavity 102.
- the speaker box 100 also includes a sealing cover 5 that is fixed on the receiving step 112 and completely covers the powder filling hole 1120 .
- the accommodating step 112 includes two connecting walls 1121 which are respectively bent and extended from the fixing ring main body 111 in a direction close to the sounding unit 2 and are arranged at intervals, and two connecting walls 1121 are arranged at intervals from the fixing ring main body 111 and are arranged at intervals.
- the bottom wall 1122 connected with the two connecting walls 1121, the powder filling hole 1120 is disposed through the bottom wall 1122, and the sealing cover 5 is covered and fixed on the bottom wall 1122.
- the outer side 51 of the sealing cover 5 away from the sounding unit 2 is flush with the outer side 1111 of the fixing ring body 111 on this side away from the sounding unit 2 .
- the setting of the cover 5 does not increase the external dimension of the speaker box 100 , so that the outer side of the speaker box 100 is more flat.
- the speaker box 100 further includes a ventilating spacer 6 located in the rear acoustic cavity 102, and the ventilating spacer 6 is fixed to the bracket 3 and the sound-producing unit. 2 is separated from the rear acoustic cavity 102, so that the rear acoustic cavity 102 can be filled with sound-absorbing material.
- the ventilating spacer 6 includes an spacer body 61 that is spaced apart from the lower cover 13 and is attached to the sound-generating unit 2 .
- the spacer extension portion 62 that is bent and extended and the spacer fixing portion 63 that is bent and extended from one end of the spacer extension portion 62 away from the spacer body 61 can be bent and extended toward the direction close to the fixing ring body 111 , It can also be bent and extended in a direction away from the fixing ring body 111 .
- the spacer extending portion 62 is spaced apart from the housing 1 , and sealing and fixing is formed between the spacer fixing portion 63 and the flange 33 .
- the breathable spacer 6, the bracket 3, the sound guide 4 and the housing 1 together form a powder filling space 8, and the powder filling space 8 is used for filling sound-absorbing materials, such as sound-absorbing particles and sound-absorbing cotton. etc.
- the sound-absorbing material is filled in the powder-filling space 8 through the powder-filling hole 1120 , and the sealing cover 5 encapsulates the sound-absorbing material in the powder-filling space 8 .
- the spacer fixing part 63 and the flange 33 are sealed and fixed. This setting enables the air-permeable spacer 6 to form an effective seal when the bracket 3 is fixed, ensuring that the powder filling space 8 is sealed. The sound-absorbing material will not enter the sound-emitting unit 2 and affect its performance.
- the speaker box 100 further includes a conductive member 7 that connects the sound generating unit 2 with external electrical signals.
- the conductive member 7 includes a conductive member body 71 located in the receiving space 10 , extending from both ends of the conductive member body 71 toward the sound-generating unit 2 and being connected with the sound-generating unit 2.
- the extension arm 73 penetrates through the fixing ring body 111 , this structure is convenient for assembly, and the position passing through the fixing ring body 111 can be used as an assembly positioning in advance to improve the assembly efficiency.
- the shell is made of metal material, and the shell is provided with a sound outlet passing through it along the vibration direction of the vertical diaphragm and communicating with the outside world;
- the speaker box also includes a fixed A bracket and a sound guide that are accommodated in the accommodating space and are made of metal material, the bracket is provided with an opening that is opposite to the sound outlet, the sound guide is located between the opening and the sound outlet, and the sound guide is The opposite sides of the sound-generating unit are welded and fixed to the shell and the bracket respectively, and the sound-guiding member is arranged around the sound outlet and forms a sound-guiding channel together with the shell.
- the sound-generating unit, the support and the shell together form a front sound cavity, and the front sound cavity is communicated with the sound outlet through the sound guide channel to form a side sound-emitting structure;
- the sounding unit is supported by a bracket made of metal material, which can It is made of thinner steel sheet.
- the arrangement of the bracket of the present invention effectively reduces the volume of the rear acoustic cavity occupied by the bracket and ensures the volume of the rear acoustic cavity, thereby improving the low-frequency acoustic performance.
Abstract
本发明提供了一种扬声器箱，其包括具有收容空间且由金属材料制成的壳体、发声单体、由金属材料制成的支架以及导声件，发声单体、支架和导声件分别收容于收容空间内，导声件固定连接于支架，发声单体包括振膜；壳体设有出声口；支架设有与出声口相对设置的让位口，导声件位于让位口与出声口之间且导声件的相对两侧分别焊接固定于壳体和支架，导声件环绕出声口设置并与壳体共同围成导声通道；发声单体设有振膜的一侧支撑固定于支架并与壳体间隔，发声单体、支架以及壳体共同围成前声腔，前声腔通过导声通道与出声口连通以形成侧发声结构；支架、导声件、发声单体以及壳体共同围成后声腔。与相关技术相比，本发明的扬声器箱低频声学性能优。
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。
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低频声学性能好的扬声器箱。
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；所述壳体由金属材料制成，所述壳体设有沿垂直所述振膜的振动方向贯穿其上的且与外界连通的出声口；所述扬声器箱还包括固定收容于所述收容空间内的且由金属材料制成的支架以及导声件，所述支架设有与所述出声口相对设置的让位口，所述导声件位于所述让位口与所述出声口之间且所述导声件的相对两侧分别焊接固定于所述壳体和所述支架，所述导声件环绕所述出声口设置并与所述壳体共同围成导声通道；所述发声单体设有所述振膜的一侧支撑固定于所述支架并与所述壳体间隔，所述发声单体、所述支架以及所述壳体共同围成前声腔，所述前声腔通过所述导声通道与所述出声口连通以形成侧发声结构；所述支架、所述导声件、所述发声单体以及所述壳体共同围成密闭的后声腔。
优选的，所述支架包括固定于所述壳体的第一壁以及由所述第一壁的外周缘沿垂直所述振动方向弯折延伸的第二壁，所述让位口同时贯穿所述第一壁和所述第二壁设置，所述导声件固定连接于所述第一壁，所述发声单体固定支撑于所述第二壁。
优选的，所述支架还包括由所述第二壁外周缘沿所述发声单体的外周缘弯折延伸的翻边，所述翻边环绕所述发声单体的外周缘设置并与所述发声单体形成密封固定。
优选的，所述壳体包括呈环状的固定环以及分别盖设固定于所述固定环相对两侧并与所述固定环共同围成所述收容空间的上盖板和下盖板；所述出声口贯穿所述固定环设置，所述第一壁固定于所述上盖板，所述前声腔由所述发声单体、所述第一壁以及所述上盖板共同围成；所述导声件固定于所述上盖板且抵接固定于所述固定环，所述导声通道由所述导声件、所述固定环以及所述上盖板共同形成。
优选的，所述导声件包括与所述上盖板间隔设置的第一段以及由所述第一段的相对两端向所述上盖板弯折延伸的第二段，所述第二段与所述第一壁固定连接且固定支撑于所述上盖板，所述上盖板设有贯穿其上的容胶孔，所述容胶孔与所述第二段和所述第一壁之间的连接位置相对设置；通过所述容胶孔向所述第二段和所述第一壁之间的连接位置填胶以使所述第二段和所述第一壁形成密封固定。
优选的，所述固定环包括固定环主体以及由所述固定环主体向靠近所述发声单体的方向弯折凹陷形成的收容台阶，所述收容台阶设有贯穿其上的并与所述后声腔连通的灌粉孔，所述灌粉孔与所述后声腔连通；所述扬声器箱还包括盖设固定于所述收容台阶并完全覆盖所述灌粉孔的密封盖。
优选的，所述收容台阶包括由所述固定环主体分别向靠近所述发声单体的方向弯折延伸且间隔设置的两个连接壁以及与所述固定环主体间隔设置并与两个所述连接壁连接的底壁，所述灌粉孔贯穿所述底壁设置，所述密封盖盖设固定于所述底壁。
优选的，所述密封盖远离所述发声单体的外侧面与该侧的所述固定环主体远离所述发声单体的外侧面平齐。
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，所述透气隔离件固定于所述支架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板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，所述隔离件固定部与所述翻边形成密封固定；所述透气隔离件、所述支架、所述导声件及所述壳体共同围成灌粉空间，通过所述灌粉孔将吸音材料填充于所述灌粉空间内，所述密封盖将所述吸音材料封装于所述灌粉空间内。
与相关技术相比，本发明的扬声器箱中，壳体由金属材料制成，壳体设有沿垂直振膜的振动方向贯穿其上的且与外界连通的出声口；扬声器箱还包括固定收容于收容空间内的且由金属材料制成的支架以及导声件，支架设有与出声口相对设置的让位口，导声件位于让位口与出声口之间且导声件的相对两侧分别焊接固定于壳体和支架，导声件环绕出声口设置并与壳体共同围成导声通道；发声单体设有振膜的一侧支撑固定于支架并与壳体间隔，发声单体、支架以及壳体共同围成前声腔，前声腔通过导声通道与出声口连通以形成侧发声结构；支架、导声件、发声单体以及壳体共同围成密闭的后声腔；上述结构中，壳体为金属材料制成，壳体可以采用较薄的钢片制成，使得壳体可设计得更薄，从而极大程度的提高了壳体内的腔体体积，有效地增加了发声单体与壳体围成的后声腔的体积，进而改善扬声器箱的声学性能，特别是低频声学性能；另外，通过由金属材料制成的支架支撑发声单体，该支架可以采用较薄的钢片制成，与相关技术的塑料支架相比，本发明的支架的设置有效地较小了支架占用后声腔的体积，保证后声腔的体积，从而改善低频声学性能。
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为本发明扬声器箱另一角度的部分立体结构分解示意图；
图4为本发明上盖板、支架和导声件的立体结构装配示意图；
图5为图4中C所示部分放大图；
图6为沿图1中A-A线的剖示图；
图7为图6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1-7，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、固定收容于所述收容空间10内的发声单体2、固定收容于所述收容空间10内的支架3以及固定连接于所述支架3的导声件4，所述支架3、所述导声件4、所述发声单体2以及所述壳体1共同围成后声腔102。
所述壳体1为金属材料制成，其可以为分体结构，也可以为一体结构，比如，在本实施方式中，所述壳体1为分体结构，其包括由金属材料制成的呈环状的固定环11以及分别盖设固定于所述固定环11相对两侧的上盖板12和下盖板13，所述上盖板12、所述下盖板13与所述固定环11共同围成所述收容空间10，所述固定环11设有贯穿其上的且与外界连通的出声口110。
所述发声单体2包括用于振动发声的振膜21，所述发声单体2设有所述振膜21的一侧固定支撑于所述支架3并与所述支架3形成密封固定，从而，所述发声单体2、所述支架3、所述导声件4、所述上盖板12、所述下盖板13及所述固定环11共同围成密闭的所述后声腔102，所述发声单体2与所述壳体1间隔，所述发声单体2、所述支架3以及所述壳体1共同围成前声腔101，所述出声口110沿垂直所述振膜21的振动方向贯穿所述固定环11设置。
所述支架3和所述导声件4分别由金属材料制成，所述支架3与所述前盖11形成固定连接，所述支架3设有与所述出声口110相对设置的让位口30，所述导声件4位于所述让位口30与所述出声口110之间，且所述导声件4的相对两侧分别焊接固定于所述壳体1和所述支架3，该设置使得所述导声件4分别与所述壳体1和所述支架3之间的装配；所述导声件4环绕所述出声口110设置并与所述壳体1共同围成导声通道40。
进一步的，所述支架3包括固定于所述壳体1的第一壁31以及由所述第一壁31的外周缘沿垂直所述振动方向弯折延伸的第二壁32，所述让位口30同时贯穿所述第一壁31和所述第二壁32设置；所述导声件4固定连接于所述第一壁31，所述发声单体2固定支撑于所述第二壁32，所述发声单体2、所述第一壁31以及所述壳体1的上盖板12共同围成所述前声腔101，所述前声腔101通过所述导声通道40与所述出声口110连通，以形成所述扬声器箱100的侧发声结构。
具体的，所述第一壁31固定支撑于所述上盖板12，所述前声腔102由所述发声单体2、所述第一壁31以及所述上盖板12共同围成；所述导声件4固定支撑于所述上盖板12且抵接固定于所述固定环11，所述导声通道40由所述导声件4、所述固定环11以及所述上盖板12共同形成。
更优的，为了提高所述支架3与所述发声单体2之间密封的可靠性，所述支架3还包括由所述第二壁32外周缘沿所述发声单体2的外周缘弯折延伸的翻边33，所述翻边33环绕所述发声单体2的外周缘设置并与所述发声单体2之间形成密封固定，该设置有效保证所述后声腔102形成密闭空间，从而用以改善低频声学性能。
上述结构中，固定环11、上盖板12、下盖板13以及支架3的组合结构，所述固定环11、所述上盖板12、所述下盖板13均为金属材料制成，三者可以采用较薄的钢片制成，此时，所述上盖板12、所述下盖板13可以采用金属焊接的方式与所述固定环11形成固定，该结构设置在确保壳体1的结构强度的前提下，而相对于相关技术的全塑料壳体结构而言，所述壳体1可设计得更薄，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；另外，通过由金属材料制成的支架3支撑发声单体2，该支架3可以采用较薄的钢片制成，与相关技术的塑料支架相比，本发明的支架2的设置有效地较小了支架3占用后声腔102的体积，保证了后声腔102的体积，从而改善低频声学性能。
进一步的，所述导声件4包括与所述上盖板12间隔设置的第一段41以及由所述第一段41的相对两端向所述上盖板12弯折延伸的第二段42，所述第二段42与所述第一壁31焊接固定，且所述第二段42固定支撑于所述上盖板12。
为了避免所述第二段42和所述第一壁31在焊接后所产生的拼接漏气风险，更优的，所述上盖板12设有贯穿其上的容胶孔120，所述容胶孔120与所述第二段42和所述第一壁31之间的连接位置相对设置；通过所述容胶孔120向所述第二段42和所述第一壁31之间的连接位置填胶以使所述第二段42和所述第一壁31形成密封固定，有效地防止所述支架3与所述导声件4之间的漏气，提高两者之间的密封性。
更优的，为了更方便地向所述后声腔102中灌装吸音材料，在本实施方式中，所述固定环11包括固定环主体111以及由所述固定环主体111向靠近所述发声单体2的方向弯折凹陷形成的收容台阶112，所述收容台阶112设有贯穿其上并与所述后声腔102连通的灌粉孔1120，所述灌粉孔1120与所述后声腔102连通；所述扬声器箱100还包括盖设固定于所述收容台阶112并完全覆盖所述灌粉孔1120的密封盖5。
进一步的，所述收容台阶112包括由所述固定环主体111分别向靠近所述发声单体2的方向弯折延伸且间隔设置的两个连接壁1121以及与所述固定环主体111间隔设置并与两个所述连接壁1121连接的底壁1122，所述灌粉孔1120贯穿所述底壁1122设置，所述密封盖5盖设固定于所述底壁1122。
更优的，所述密封盖5远离所述发声单体2的外侧面51与该侧的所述固定环主体111远离所述发声单体2的外侧面1111平齐，该设置使得所述密封盖5的设置，不会增加所述扬声器箱100的外形尺寸，使得所述扬声器箱100的外侧面更加平整。
而此处，通过所述灌粉孔1120及所述密封盖5的配合设置，使得往所述后声腔102内填充吸音材料更加方便，提高了灌装吸音材料的效率。
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6，所述透气隔离件6固定于所述支架3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6包括与所述下盖板13间隔相对并贴合于所述发声单体2的隔离件本体61、由所述隔离件本体61的周缘向所述支架3方向弯折延伸的隔离件延伸部62以及由所述隔离件延伸部62远离所述隔离件本体61的一端弯折延伸的隔离件固定部63，可向靠近固定环本体111的方向弯折延伸，也可向远离固定环本体111的方向弯折延伸。所述隔离件延伸部62与所述壳体1间隔设置，所述隔离件固定部63与所述翻边33之间形成密封固定。所述透气隔离件6、所述支架3、所述导声件4及所述壳体1共同围成灌粉空间8，所述灌粉空间8用于填充吸音材料，比如吸音颗粒、吸音棉等，具体的，在实际装配过程中，通过所述灌粉孔1120将吸音材料填充于所述灌粉空间8内，所述密封盖5将所述吸音材料封装于所述灌粉空间8内。
更优的，所述隔离件固定部63与所述翻边33之间形成密封固定，该设置使的所述透气隔离件6与所述支架3固定时形成有效密封，确保灌粉空间8内的吸音材料不会进入到发声单体2而影响其性能。
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7。本实施方式中，所述导电件7包括位于所述收容空间10内的导电件本体71、由所述导电件本体71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72以及由所述导电件本体71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73。本实施方式中，所述延伸臂73贯穿所述固定环本体111，该结构方便装配，贯穿固定环本体111的位置可预先作为装配定位，提高装配效率。
与相关技术相比，本发明的扬声器箱中，壳体由金属材料制成，壳体设有沿垂直振膜的振动方向贯穿其上的且与外界连通的出声口；扬声器箱还包括固定收容于收容空间内的且由金属材料制成的支架以及导声件，支架设有与出声口相对设置的让位口，导声件位于让位口与出声口之间且导声件的相对两侧分别焊接固定于壳体和支架，导声件环绕出声口设置并与壳体共同围成导声通道；发声单体设有振膜的一侧支撑固定于支架并与壳体间隔，发声单体、支架以及壳体共同围成前声腔，前声腔通过导声通道与出声口连通以形成侧发声结构；支架、导声件、发声单体以及壳体共同围成密闭的后声腔；上述结构中，壳体为金属材料制成，壳体可以采用较薄的钢片制成，使得壳体可设计得更薄，从而极大程度的提高了壳体内的腔体体积，有效地增加了发声单体与壳体围成的后声腔的体积，进而改善扬声器箱的声学性能，特别是低频声学性能；另外，通过由金属材料制成的支架支撑发声单体，该支架可以采用较薄的钢片制成，与相关技术的塑料支架相比，本发明的支架的设置有效地较小了支架占用后声腔的体积，保证后声腔的体积，从而改善低频声学性能。
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，所述壳体由金属材料制成，所述壳体设有沿垂直所述振膜的振动方向贯穿其上的且与外界连通的出声口；所述扬声器箱还包括固定收容于所述收容空间内的且由金属材料制成的支架以及导声件，所述支架设有与所述出声口相对设置的让位口，所述导声件位于所述让位口与所述出声口之间且所述导声件的相对两侧分别焊接固定于所述壳体和所述支架，所述导声件环绕所述出声口设置并与所述壳体共同围成导声通道；所述发声单体设有所述振膜的一侧支撑固定于所述支架并与所述壳体间隔，所述发声单体、所述支架以及所述壳体共同围成前声腔，所述前声腔通过所述导声通道与所述出声口连通以形成侧发声结构；所述支架、所述导声件、所述发声单体以及所述壳体共同围成密闭的后声腔。
- 根据权利要求1所述的扬声器箱，其特征在于，所述支架包括固定于所述壳体的第一壁以及由所述第一壁的外周缘沿垂直所述振动方向弯折延伸的第二壁，所述让位口同时贯穿所述第一壁和所述第二壁设置，所述导声件固定连接于所述第一壁，所述发声单体固定支撑于所述第二壁。
- 根据权利要求2所述的扬声器箱，其特征在于，所述支架还包括由所述第二壁外周缘沿所述发声单体的外周缘弯折延伸的翻边，所述翻边环绕所述发声单体的外周缘设置并与所述发声单体形成密封固定。
- 根据权利要求3所述的扬声器箱，其特征在于，所述壳体包括呈环状的固定环以及分别盖设固定于所述固定环相对两侧并与所述固定环共同围成所述收容空间的上盖板和下盖板；所述出声口贯穿所述固定环设置，所述第一壁固定于所述上盖板，所述前声腔由所述发声单体、所述第一壁以及所述上盖板共同围成；所述导声件固定于所述上盖板且抵接固定于所述固定环，所述导声通道由所述导声件、所述固定环以及所述上盖板共同形成。
- 根据权利要求4所述的扬声器箱，其特征在于，所述导声件包括与所述上盖板间隔设置的第一段以及由所述第一段的相对两端向所述上盖板弯折延伸的第二段，所述第二段与所述第一壁固定连接且固定支撑于所述上盖板，所述上盖板设有贯穿其上的容胶孔，所述容胶孔与所述第二段和所述第一壁之间的连接位置相对设置；通过所述容胶孔向所述第二段和所述第一壁之间的连接位置填胶以使所述第二段和所述第一壁形成密封固定。
- 根据权利要求4所述的扬声器箱，其特征在于，所述固定环包括固定环主体以及由所述固定环主体向靠近所述发声单体的方向弯折凹陷形成的收容台阶，所述收容台阶设有贯穿其上的并与所述后声腔连通的灌粉孔，所述灌粉孔与所述后声腔连通；所述扬声器箱还包括盖设固定于所述收容台阶并完全覆盖所述灌粉孔的密封盖。
- 根据权利要求6所述的扬声器箱，其特征在于，所述收容台阶包括由所述固定环主体分别向靠近所述发声单体的方向弯折延伸且间隔设置的两个连接壁以及与所述固定环主体间隔设置并与两个所述连接壁连接的底壁，所述灌粉孔贯穿所述底壁设置，所述密封盖盖设固定于所述底壁。
- 根据权利要求7所述的扬声器箱，其特征在于，所述密封盖远离所述发声单体的外侧面与该侧的所述固定环主体远离所述发声单体的外侧面平齐。
- 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透气隔离件，所述透气隔离件固定于所述支架并将所述发声单体从所述后声腔内分隔。
- 根据权利要求9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板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，所述隔离件固定部与所述翻边形成密封固定；所述透气隔离件、所述支架、所述导声件及所述壳体共同围成灌粉空间，通过所述灌粉孔将吸音材料填充于所述灌粉空间内，所述密封盖将所述吸音材料封装于所述灌粉空间内。
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