WO2022067908A1 - 扬声器箱 - Google Patents
扬声器箱 Download PDFInfo
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- WO2022067908A1 WO2022067908A1 PCT/CN2020/122602 CN2020122602W WO2022067908A1 WO 2022067908 A1 WO2022067908 A1 WO 2022067908A1 CN 2020122602 W CN2020122602 W CN 2020122602W WO 2022067908 A1 WO2022067908 A1 WO 2022067908A1
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- WO
- WIPO (PCT)
- Prior art keywords
- hole
- hole portion
- metal bottom
- bottom case
- shape
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- Ceased
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
Definitions
- the present application relates to the technical field of acoustic design, and in particular, to a speaker box.
- Speaker boxes are an essential part of terminal equipment (such as mobile phones). At present, there are some speaker boxes with metal bottom shells on the market, which have the advantages of large back cavity, fast heat conduction and high strength.
- the metal bottom shell of the speaker box and the basin frame of the speaker unit are injection-molded, but after injection molding, there is a problem that the bonding force between the basin frame of the speaker unit and the metal bottom casing is not strong, which affects the use of the speaker box.
- the metal bottom shell and the speaker unit's basin frame are injection-molded. After injection molding, there is a problem that the bonding force between the speaker unit's basin frame and the metal bottom case is not strong, which affects the use of the speaker box.
- the purpose of the present application is to provide a speaker box, the bonding strength of the basin frame of the speaker unit and the metal bottom case after injection molding.
- a speaker box comprising a metal bottom case and a speaker unit, the metal bottom case has a receiving cavity, and the speaker unit includes a vibration system for driving the vibration system to vibrate A sounding magnetic circuit system and a basin frame for installing the vibration system and the magnetic circuit system, the basin frame is at least partially received in the receiving cavity;
- the metal bottom shell includes a bottom plate and a side plate, the The side plate is surrounded by the edge of the bottom plate to form the receiving cavity, the side plate is provided with an assembly hole, and the assembly hole has a larger diameter on the side away from the receiving cavity, and the basin frame is made of injection molding. It is formed on the metal bottom shell, and a protrusion embedded in the assembling hole is formed on the outer side of the basin frame, and the shape of the protrusion is matched with the shape of the assembling hole.
- the assembly hole includes a through hole portion and a tapered hole portion communicated with the through hole portion, the tapered hole portion is provided on a side of the through hole portion away from the receiving cavity, The diameter of the tapered hole portion is larger than the diameter of the through hole portion, and the shape of the protrusion is adapted to the shape of the assembly hole.
- the assembly hole includes a first through hole portion and a second through hole portion communicating with the first through hole portion, and the second through hole portion is provided in the first through hole portion.
- the hole portion is on the side away from the receiving cavity, the diameter of the second through hole portion is larger than that of the first through hole portion, and the shape of the protrusion matches the shape of the assembly hole.
- the mounting hole is a tapered hole, the farther the mounting hole is from the receiving cavity, the larger the hole diameter of the mounting hole, and the shape of the protrusion is suitable for the shape of the mounting hole match.
- the speaker box further includes a plastic part
- the metal bottom case has an antenna signal interference critical area
- the metal bottom case is set as a through hole at the antenna signal interference critical area
- the plastic part embedded in the through hole
- the plastic part is a plastic part made of LCP or PBT or PPS or PPO or PP or PET or PEN material.
- the side of the through hole close to the receiving cavity has a larger diameter.
- the through hole includes a through hole portion and a conical hole portion communicated with the through hole portion, the conical hole portion communicates with the receiving cavity, and the diameter of the conical hole portion is larger than The diameter of the through hole portion and the shape of the plastic part are adapted to the shape of the through hole.
- the plastic part is injection-molded on the metal bottom case.
- an inverted buckle structure can be formed between the protrusion formed on the outer side of the basin frame and the metal bottom shell.
- the bonding strength between the basin frame and the metal bottom casing is increased, so that the basin frame can be firmly connected to the metal bottom casing.
- FIG. 1 is a schematic structural diagram of a speaker box provided by an embodiment of the present application.
- FIG. 2 is an exploded schematic view of the speaker cabinet shown in FIG. 1 .
- FIG. 3 is a schematic view of the section A-A in FIG. 2 .
- FIG. 4 is a partial enlarged schematic view of B in FIG. 3 .
- FIG. 5 is a schematic diagram of a modified embodiment of the through hole.
- FIG. 6 is a schematic diagram of another variant embodiment of the through hole.
- FIG. 7 is a schematic diagram of another variant embodiment of the through hole.
- FIG. 8 is a schematic diagram of another variant embodiment of the through hole.
- FIG. 9 is an exploded schematic diagram of a speaker box provided by another embodiment of the present application.
- FIG. 10 is a schematic cross-sectional view of C-C in FIG. 9 .
- FIG. 11 is a partial enlarged schematic diagram of the position D in FIG. 10 .
- FIG. 12 is a schematic diagram of a variant embodiment of the mounting hole.
- FIG. 13 is a schematic diagram of another variant embodiment of the mounting hole.
- FIG. 14 is a schematic structural diagram of a speaker box provided by another embodiment of the present application.
- FIG. 15 is a schematic cross-sectional view of E-E in FIG. 14 .
- Figure 16 is a schematic exploded view of the vibration system.
- Figure 17 is an exploded schematic diagram of the magnetic circuit system.
- FIG. 18 is an exploded schematic diagram of a speaker box provided by another embodiment of the present application.
- FIG. 19 is a schematic partial structural diagram of a mobile terminal according to an embodiment of the present application.
- FIG. 20 is an exploded schematic view of the structure shown in FIG. 19 .
- an embodiment of the present application provides a speaker box 100 for a mobile terminal with an antenna.
- the speaker box 100 includes a metal bottom case 10 , a plastic part 20 and a speaker unit 30 .
- the metal bottom case 10 has an accommodating cavity 11, the speaker unit 30 is at least partially accommodated in the accommodating cavity 11, the metal bottom case 10 has an antenna signal interference key area 12, the metal bottom case 10 is set as a through hole 13 at the antenna signal interference key area, and the plastic parts 20 is embedded in the through hole 13 .
- the antenna signal interference critical area 12 can be obtained by simulation.
- the metal bottom case 10 includes a bottom plate 14 and a side plate 15 .
- the side plate 15 is formed around the edge of the bottom plate 14 to form the receiving cavity 11 , and the through hole 13 is provided on the bottom plate 14 of the metal bottom case 10 .
- the metal bottom case 10 is integrally formed by stamping a stainless steel plate.
- the metal bottom case 10 can also be formed by integral stamping of other metals, such as aluminum alloys.
- the plastic part 20 is LCP (Liquid Crystal Polymer, liquid crystal polymer) or PBT (Polybutylene terephthalate, polybutylene terephthalate) or PPS (Phenylenesulfide, PPS plastic material) or PPO (Polyphenylene) Oxide, polyphenylene ether) or PP (polypropylene, polypropylene) or PET (Polyethylene terephthalate, polyethylene terephthalate) or PEN (Polyethylene Plastic parts made of naphthalate two formic acid glycol ester, polyethylene naphthalate).
- the plastic part 20 made of the above-mentioned materials has high thermal conductivity, low dielectric constant and low dielectric loss, and can effectively maintain the high strength of the metal bottom case 10 and the good heat dissipation effect. The influence of the metal bottom case 10 on the antenna performance is reduced.
- the plastic part 20 is injection-molded on the metal bottom case 10 .
- the through hole 13 includes a through hole portion 131 and a conical hole portion 132 communicating with the through hole portion 131 .
- the conical hole portion 132 communicates with the receiving cavity 11 , and the diameter of the conical hole portion 132 is larger than that of the through hole portion 132 .
- the diameter of the hole portion 131 and the shape of the plastic part are adapted to the shape of the through hole 13 .
- the through hole portion 131 means that the hole wall of the hole has no pore diameter change, and the hole wall is parallel to the normal direction of the bottom plate 14 , and the definition is used in the following.
- the tapered hole portion 132 compared with the method of setting the through hole 13 as a straight hole, by providing the tapered hole portion 132, not only the contact area between the plastic part 20 and the metal bottom case 10 can be increased, but also the plastic part 20 can be more easily after injection molding. It is well fixed on the metal bottom case 10 , and the edge of the plastic part 20 can be clamped on the metal bottom case 10 , so that the plastic part 20 is not easy to fall off from the through hole 13 .
- the through hole 13a includes a first through hole portion 13a1 and a second through hole portion communicating with the first through hole portion 13a1.
- the second through hole 13a2 communicates with the receiving cavity 11
- the diameter of the second through hole 13b2 is larger than that of the first through hole 13a1
- the shape of the plastic part matches the shape of the through hole 13a.
- this embodiment can not only increase the contact area between the plastic part and the metal bottom case, so that the plastic part can be better fixed on the metal bottom case after injection molding, and the edge of the plastic part can be clamped on the metal bottom case, so that the plastic part can be fixed on the metal bottom case. Pieces do not easily fall out of through holes.
- the through hole 13b is a tapered hole.
- this embodiment can not only increase the contact area between the plastic part and the metal bottom case, so that the plastic part can be better fixed on the metal bottom case after injection molding, and the edge of the plastic part can be clamped on the metal bottom case, so that the plastic part can be fixed on the metal bottom case. Pieces do not easily fall out of through holes.
- the through holes are not limited to 13, 13a, 13b, as long as the side of the through holes close to the receiving cavity 11 has a larger diameter, so that the connection between the plastic part and the metal bottom case is more secure.
- the through hole 13c includes a first through hole portion 13c1, a second through hole portion 13c2, and a through hole portion located in the first through hole portion 13c2.
- the diameter of the second through hole portion 13c2 is larger than that of the third through hole portion 13c3, and the shape of the plastic part matches the shape of the through hole 13c.
- the plastic parts after injection molding can be firmly clamped to the metal bottom case.
- the through hole 13d includes a first tapered hole portion 13d1 and a second tapered hole communicated with the first tapered hole portion 13d1.
- 13d2 the farther the first conical hole portion 13d1 is from the receiving cavity 11, the larger the diameter of the first conical hole portion 13d1, the closer the second conical hole portion 13d2 is to the receiving cavity 11, the larger the diameter of the second conical hole portion 13d2 is.
- the shape of the plastic piece is adapted to the shape of the through hole 13d.
- the plastic parts after injection molding can be firmly clamped to the metal bottom case.
- the through holes are not limited to the above-mentioned 13c and 13d arrangements, as long as the diameter of the through holes is first reduced and then increased in the thickness direction of the metal bottom case, so that the plastic parts and the metal bottom case are connection is more solid.
- the speaker unit 30 includes a vibration system 31 , a magnetic circuit system 32 for driving the vibration system 31 to vibrate and sound, and a magnetic circuit system 32 for installing the vibration system 31 and the magnetic circuit system 32
- the basin frame 33, the basin frame 33 is at least partially accommodated in the receiving cavity 11, the side plate 15 of the metal bottom case 10 is provided with an assembly hole 16, the basin frame 33 is injection-molded on the metal bottom case 10, and the outer side of the basin frame 33 is formed with
- the protrusions 331 are embedded in the mounting holes 16 .
- the basin frame 33 and the metal bottom case 10 can be firmly connected through the cooperation of the protrusion 331 with the mounting hole 16 .
- the basin frame 33 is made of plastic material. It should be noted that the mounting holes 16 are not limited to be provided on the side plates 15 of the metal bottom case 10 , for example, the mounting holes 16 may also be provided on the bottom plate 14 of the metal bottom case 10 , depending on actual design requirements.
- the assembly hole 16 includes a through hole portion 161 and a tapered hole portion 162 communicating with the through hole portion 161 .
- the tapered hole portion 162 is provided on the side of the through hole portion 161 away from the receiving cavity 11 .
- the hole diameter of the portion 162 is larger than that of the through hole, and the shape of the protrusion 331 is adapted to the shape of the mounting hole.
- an inverted structure can be formed between the protrusion 331 formed on the outer side of the pot frame 33 and the metal bottom case 10, and the pot frame 33 and the metal bottom case 10 can be formed.
- the bonding strength of the bottom case 10 enables the basin frame 33 to be firmly connected to the metal bottom case 10 .
- the mounting hole 16a includes a first through hole portion 16a1 and a second through hole communicating with the first through hole portion 16a1 part 16a2, the second through hole part 16a2 is provided on the side of the first through hole part 16a1 away from the receiving cavity 11, the diameter of the second through hole part 16a2 is larger than that of the first through hole part 16a1, and the shape of the protrusion is The shape of the mounting hole is adapted.
- an inverted structure can be formed between the protrusion formed on the outer side of the basin frame and the metal bottom case, which increases the bonding strength between the basin frame and the metal bottom case, so that the basin frame can be stably connected. on the metal bottom case.
- Figure 13 shows another variant of the mounting hole.
- the mounting hole 16b is a tapered hole.
- the shape matches the shape of the mounting hole.
- an inverted structure can be formed between the protrusion formed on the outer side of the basin frame and the metal bottom case, which increases the bonding strength between the basin frame and the metal bottom case, so that the basin frame can be stably connected. on the metal bottom case.
- the assembly holes are not limited to the arrangement of 16, 16a and 16b, as long as the assembly hole has a larger diameter on the side away from the receiving cavity 11, so that the injection-molded basin frame is formed by the protrusion and the assembly hole.
- the inverted buckle structure makes the basin frame can be firmly connected to the metal bottom shell.
- the speaker box 100 further includes a ventilating spacer 40 disposed on the inner side of the basin frame 33 , and the ventilating spacer 40 and the top of the basin frame 33 are enclosed to form a front cavity 11a
- the bottom of the ventilating spacer 40, the metal bottom case 10 and the basin frame 33 are enclosed to form the rear cavity 11b, and the vibration system 31 and the magnetic circuit system 32 are arranged in the front cavity 11a.
- the breathable spacer 40 is a breathable mesh.
- the basin frame 33 includes two sub-basin frames 33a arranged at intervals, and the two sub-basin frames 33a are respectively formed on opposite sides of the metal bottom case 10.
- the occupied space of the basin frame 33 can be reduced. , so that the speaker box has a larger back cavity 11b, so as to obtain a better sound effect.
- the basin frame 33 can also be provided as a complete annular structure.
- the opposite sides of the two sub-basin frames 33a are provided with first steps 332, the opposite sides of the support plate 40 are respectively overlapped with the first steps 332 of the two sub-basin frames 33a, and the magnetic circuit system 32 is installed on the support plate 40. on board 40.
- the metal bottom case 10 is provided with a filling hole 17 which communicates with the rear cavity 11 b , and the rear cavity 11 b is filled with sound-absorbing particles through the filling hole 17 .
- the vibration system 31 includes a lower sound diaphragm 311 , an annular support 312 , an annular diaphragm 313 , a voice coil bobbin 314 , a voice coil 315 and a dome 316 .
- the two lower sound membranes 311 there are two lower sound membranes 311 , the two lower sound membranes 311 are located on opposite sides of the magnetic circuit system 32 respectively, and the outer sides of the lower sound membranes 311 are sandwiched between the basin frame 33 and the annular support 312 , for example
- the basin frame 33 is provided with a second step 333
- the lower surface of the outer side of the lower sound membrane 311 is overlapped with the second step 333
- the annular bracket 312 is attached to the upper surface of the outer side of the lower sound membrane 311, the annular bracket 312 and the basin frame 33 clamps the outer side of the lower sound membrane 311 from the upper and lower surfaces.
- the outer side of the annular diaphragm 313 is connected to the annular support 312 .
- the voice coil bobbin 314 is connected to the inner side of the lower voice diaphragm 311 and the inner side of the annular diaphragm 313 .
- the voice coil 315 is connected to the voice coil skeleton 314 , and the voice coil 315 vibrates up and down under the driving of the magnetic circuit system 32 , thereby driving the lower voice membrane 311 and the annular vibrating membrane 313 to vibrate up and down to produce sound.
- the dome 316 is disposed inside the annular diaphragm 313 and mounted on the voice coil bobbin 314 .
- the voice coil bobbin 314 includes a skeleton body 3141 and a support frame 3142.
- the skeleton body 3141 is annular, the upper surface of the skeleton body 3141 is connected to the annular diaphragm 313, and the lower surface of the skeleton body 3141 is connected to the voice coil 315 and the lower surface.
- the support frame 3142 is installed on the inner side of the frame body 3141 .
- the vibration system 31 further includes two elastic supports 317 respectively disposed on opposite sides of the voice coil 315 , and the elastic supports 317 include an elastic support body 3171 connected to the basin frame 33 and a slave elastic support body
- the elastic arm 3172 of the 3171 extends toward the voice coil 315 , and one end of the elastic arm 3172 away from the elastic support body 3171 is sandwiched between the lower sound membrane 311 and the skeleton body 3141 .
- the elastic support member 317 is a flexible circuit board, which not only functions as an elastic support for the voice coil 315 , but can also be used for electrical connection between the voice coil 315 and an external power source.
- the magnetic circuit system 32 includes a magnetic bowl 321 installed in the middle of the bottom frame, a main magnetic steel 322 arranged in the middle of the magnetic bowl 321, four auxiliary magnetic steels 323 arranged on the magnetic bowl 321 and arranged around the main magnetic steel 322, and attached
- the main pole core 324 on the side of the main magnetic steel 322 away from the magnetic bowl 321 and the secondary pole core 325 on the side of the auxiliary magnetic steel 323 away from the magnetic bowl 321 are arranged at intervals between the main magnetic steel 322 and the auxiliary magnetic steel 323.
- the ring 315 is movably sleeved outside the main magnet 322 . It can be understood that the number of secondary magnets 323 is not limited to four, for example, there are two secondary magnets 323 , and two secondary magnets 323 may be provided on two opposite sides of the main magnet 322 respectively.
- the speaker box' includes a bottom case assembly 10' and a speaker unit 20', the bottom case assembly 10' has a receiving cavity 11', and the speaker unit 20' is at least partially housed in the receiving chamber 11'.
- the bottom case assembly 10' includes a metal bottom case 12' and a protective film 13', the metal bottom case 12' has the receiving cavity 11', and the protective film 13' is attached to the outer side of the metal bottom case 12' .
- the bottom case assembly 10' is integrally stamped and formed by a metal plate attached with a protective film.
- the manufacturing process is simple, and the protective film 13' can prevent the surface of the metal plate from being scratched during the stamping process.
- the protective film 13 ′ is any one of a PET (Polyethylene terephthalate, polyethylene terephthalate) film, a PE (polyethylene, polyethylene) film, and a PVC (Polyvinyl chloride, polyvinyl chloride) film .
- PET Polyethylene terephthalate, polyethylene terephthalate
- PE polyethylene, polyethylene
- PVC Polyvinyl chloride, polyvinyl chloride
- the protective film 13' includes at least a polymer layer that provides color display, and the color of the protective film 13' can be changed by changing the material of the polymer layer, so as to meet customer requirements for product color.
- an embodiment of the present application further provides a terminal device.
- the mobile terminal includes a casing 400 and the aforementioned speaker box 100 .
- the casing 400 includes a casing body 200 and at least one antenna 300 .
- the casing body 200 is provided with a receiving cavity 202 with an opening 201 on one side, the antenna 300 is arranged on the housing body 200 and extends to one side of the opening 201 ; the speaker box 100 is arranged in the receiving cavity 202 and the bottom plate 14 is exposed to the receiving cavity 202 through the opening 201
- the antenna signal interference critical area 12 is located on the side of the base plate 14 close to the antenna 300 .
- the antenna 300 adopts a laser direct molding technology (Laser Direct Structuring, LDS) is directly molded on the housing body 200 .
- LDS Laser Direct Structuring
- the provided terminal devices can be mobile phones, notebook computers, tablet computers, wearable devices, etc.
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Abstract
本申请提供了扬声器箱，其包括金属底壳和扬声器单体，金属底壳具有收容腔，扬声器单体包括振动系统、用于驱动振动系统振动发声的磁路系统以及用于供振动系统和磁路系统安装的盆架，盆架至少部分收纳于收容腔中；金属底壳包括底板和侧板，侧板围设于底板的边缘以形成收容腔，侧板设有装配孔，装配孔远离收容腔的一侧具有较大孔径，盆架通过注塑成型于金属底壳，盆架的外侧面成型有嵌于装配孔的凸起，凸起的形状与装配孔的形状相适配。本申请提供的扬声器箱，通过设置装配孔远离收容腔的一侧具有较大孔径，注塑后盆架外侧面成型的凸起与金属底壳之间可以形成倒扣结构，增加盆架与金属底壳的粘结强度，使得盆架可以稳固地连接在金属底壳上。
Description
本申请涉及声学设计技术领域，尤其涉及一种扬声器箱。
扬声器箱是终端设备（例如手机）必备的部件，目前市面上出现了一些采用金属底壳的扬声器箱，具有大后腔、导热快、强度高等优势。该扬声器箱的金属底壳和扬声器单体的盆架采用注塑成型，但是注塑后，出现扬声器单体的盆架与金属底壳的粘结力不强的问题，影响扬声器箱的使用。
因此有必要研究一种新型的扬声器箱来解决上述问题。
金属底壳和扬声器单体的盆架采用注塑成型，注塑后，出现扬声器单体的盆架与金属底壳的粘结力不强的问题，影响扬声器箱的使用。
本申请的目的在于提供一种扬声器箱，扬声器单体的盆架与金属底壳注塑成型后的粘结强度。
本申请的目的采用如下技术方案实现：一种扬声器箱，包括金属底壳和扬声器单体，所述金属底壳具有收容腔，所述扬声器单体包括振动系统、用于驱动所述振动系统振动发声的磁路系统以及用于供所述振动系统和所述磁路系统安装的盆架，所述盆架至少部分收纳于所述收容腔中；所述金属底壳包括底板和侧板，所述侧板围设于所述底板的边缘以形成所述收容腔，所述侧板设有装配孔，所述装配孔远离所述收容腔的一侧具有较大孔径，所述盆架通过注塑成型于所述金属底壳，所述盆架的外侧面成型有嵌于所述装配孔的凸起，所述凸起的形状与所述装配孔的形状相适配。
作为一种改进方式，所述装配孔包括直通孔部和与所述直通孔部连通的锥形孔部，所述锥形孔部设于所述直通孔部远离所述收容腔的一侧，所述锥形孔部的孔径大于所述直通孔部的孔径，所述凸起的形状与所述装配孔的形状相适配。
作为一种改进方式，所述装配孔包括第一直通孔部和与所述第一直通孔部连通的第二直通孔部，所述第二直通孔部设于所述第一直通孔部远离所述收容腔的一侧，所述第二直通孔部的孔径大于所述第一直通孔部的孔径，所述凸起的形状与所述装配孔的形状相适配。
作为一种改进方式，所述装配孔为锥形孔，所述装配孔越远离所述收容腔，所述装配孔的孔径越大，所述凸起的形状与所述装配孔的形状相适配。
作为一种改进方式，所述扬声器箱还包括塑料件，所述金属底壳具有天线信号干扰关键区，所述金属底壳在所述天线信号干扰关键区处设为通孔，所述塑料件嵌于所述通孔中。
作为一种改进方式，所述塑料件为采用LCP或PBT或PPS或PPO或PP或PET或PEN材料制成的塑料件。
作为一种改进方式，所述通孔靠近所述收容腔的一侧具有较大孔径。
作为一种改进方式，所述通孔包括直通孔部和与所述直通孔部连通的锥形孔部，所述锥形孔部与所述收容腔连通，所述锥形孔部的孔径大于所述直通孔部的孔径，所述塑料件的形状与所述通孔的形状相适配。
作为一种改进方式，所述塑料件通过注塑成型于所述金属底壳。
本申请实施方式相对于现有技术而言，通过设置装配孔远离收容腔的一侧具有较大孔径，注塑后，盆架外侧面成型的凸起与金属底壳之间可以形成倒扣结构，增加了盆架与金属底壳的粘结强度，使得盆架可以稳固地连接在金属底壳上。
图1为本申请一实施例提供的扬声器箱的结构示意图。
图2为图1中所示扬声器箱的爆炸示意图。
图3为图2中A-A截面示意图。
图4为图3中B处的局部放大示意图。
图5为通孔的一种变形实施方式示意图。
图6为通孔的另一种变形实施方式示意图。
图7为通孔的另一种变形实施方式示意图。
图8为通孔的另一种变形实施方式示意图。
图9为本申请另一实施例提供的扬声器箱的爆炸示意图。
图10为图9中C-C截面示意图。
图11为图10中D处的局部放大示意图。
图12为装配孔的一种变形实施方式示意图。
图13为装配孔的另一种变形实施方式示意图。
图14为本申请另一实施例提供的扬声器箱的结构示意图。
图15为图14中E-E截面示意图。
图16为振动系统的爆炸示意图。
图17为磁路系统的爆炸示意图。
图18为本申请另一实施例提供的扬声器箱的爆炸示意图。
图19为本申请一实施例提供的移动终端的局部结构示意图。
图20为图19所示的结构的爆炸示意图。
下面结合附图和实施方式对本申请作进一步说明。
需要说明的是，本申请实施例中所有方向性指示（诸如上、下、左、右、前、后、内、外、顶部、底部……）仅用于解释在某一特定姿态（如附图所示）下各部件之间的相对位置关系等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
还需要说明的是，当元件被称为“固定于”或“设置于”另一个元件上时，该元件可以直接在另一个元件上或者可能同时存在居中元件。当一个元件被称为“连接”另一个元件，它可以是直接连接另一个元件或者可能同时存在居中元件。
如图1-2所示，本申请的实施例提供一种扬声器箱100，用于具有天线的移动终端，该扬声器箱100包括金属底壳10、塑料件20及扬声器单体30，金属底壳10具有收容腔11，扬声器单体30至少部分收容于收容腔11中，金属底壳10具有天线信号干扰关键区12，金属底壳10在天线信号干扰关键区处设为通孔13，塑料件20嵌于通孔13。通过将天线信号干扰关键区12设为通孔13，并在通孔13处嵌入塑料件20，在维持金属底壳10具有较好的强度和散热效果的情况下，可以有效降低金属底壳10对天线性能的影响。其中，天线信号干扰关键区12可以通过仿真获得。
可选地，金属底壳10包括底板14和侧板15，侧板15围设于底板14的边缘以形成收容腔11，通孔13设于金属底壳10的底板14。
可选地，金属底壳10由不锈钢板一体冲压成型。当然，金属底壳10也可以采用其他金属一体冲压成型，例如铝合金。
可选地，塑料件20为采用LCP（Liquid Crystal Polymer，液晶高分子聚合物）或PBT（Polybutylene terephthalate，聚对苯二甲酸丁二醇酯）或PPS（Phenylenesulfide，PPS塑胶原料）或PPO（Polyphenylene
Oxide，聚苯醚）或PP（polypropylene，聚丙烯）或PET（Polyethylene
terephthalate，聚对苯二甲酸乙二醇酯）或PEN（Polyethylene
naphthalate two formic acid glycol ester，聚萘二甲酸乙二醇酯）材料制成的塑料件。由上述的材料制成的塑料件20具有较高的导热系数和较低的介电常数及较低的介电损耗，可以在维持金属底壳10强度高和散热效果好的情况下，有效地降低金属底壳10对天线性能的影响。
可选地，塑料件20通过注塑成型于金属底壳10。
如图3-4所示，通孔13包括直通孔部131和与直通孔部131连通的锥形孔部132，锥形孔部132与收容腔11连通，锥形孔部132的孔径大于直通孔部131的孔径，塑料件的形状与通孔13的形状相适配。其中，直通孔部131指的是该孔的孔壁没有发生孔径变化，且孔壁与底板14的法向平行，该定义沿用至下文。以该实施方式，相对于将通孔13这设置为直通孔的方式，通过设置锥形孔部132，不仅可以增加塑料件20与金属底壳10的接触面积，使得塑料件20注塑后可以更好地固定在金属底壳10上，而且塑料件20的边缘可以卡设于金属底壳10，使得塑料件20不容易从通孔13中脱落。
图5中所展示的是通孔13的一种变形实施方式，在该实施例中，通孔13a包括第一直通孔部13a1和与第一直通孔部13a1连通的第二直通孔部13a2，第二直通孔部13a2与收容腔11连通，第二直通孔部13b2的孔径大于第一直通孔部13a1的孔径，塑料件的形状与通孔13a的形状相适配。同理，该实施方式不仅可以增加塑料件与金属底壳的接触面积，使得塑料件注塑后可以更好地固定在金属底壳上，而且塑料件的边缘可以卡设于金属底壳，使得塑料件不容易从通孔中脱落。
图6中所展示的是通孔13的另一种变形实施方式，在该实施例中，通孔13b为锥形孔，通孔13b越靠近收容腔11，通孔13b的孔径越大。同理，该实施方式不仅可以增加塑料件与金属底壳的接触面积，使得塑料件注塑后可以更好地固定在金属底壳上，而且塑料件的边缘可以卡设于金属底壳，使得塑料件不容易从通孔中脱落。
需要说明的是，通孔不局限于设置为13、13a、13b的方式，只要通孔靠近收容腔11的一侧具有较大孔径，使得塑料件与金属底壳的连接更牢固即可。
图7中所展示的是通孔13的另一种变形实施方式，在该实施例中，通孔13c包括第一直通孔部13c1、第二直通孔部13c2及位于第一直通孔部13c1和第二直通孔部13c2之间的第三直通孔部13c3，第三直通孔部13c3与第一直通孔部13c1、第二直通孔部13c2连通，第一直通孔部13c1的孔径和第二直通孔部13c2的孔径均大于第三直通孔部13c3的孔径，塑料件的形状与通孔13c的形状相适配。该实施方式，注塑成型后的塑料件可以牢固地卡设于金属底壳。
图8中所展示的是通孔13的另一种变形实施方式，在该实施例中，通孔13d包括第一锥形孔部13d1和与第一锥形孔部13d1连通第二锥形孔部13d2，第一锥形孔部13d1越远离收容腔11，第一锥形孔部13d1的孔径越大，第二锥形孔部13d2越靠近收容腔11，第二锥形孔部13d2的孔径越大，塑料件的形状与通孔13d的形状相适配。该实施方式，注塑成型后的塑料件可以牢固地卡设于金属底壳。
需要说明的是，通孔不局限于设置为上述的13c和13d的设置方式，只要通孔的孔径在金属底壳的厚度方向上是先缩小后增大的方式，使得塑料件与金属底壳的连接更牢固即可。
如图9-11所示，在一些实施例中，扬声器单体30包括振动系统31、用于驱动振动系统31振动发声的磁路系统32以及用于供振动系统31和磁路系统32安装的盆架33，盆架33至少部分收纳于收容腔11中，金属底壳10的侧板15设有装配孔16，盆架33通过注塑成型于金属底壳10，盆架33的外侧面成型有嵌于装配孔16的凸起331。以该实施方式，注塑成型后，通过凸起331与装配孔16的配合，盆架33和金属底壳10可以形成稳固的连接。可选地，盆架33由塑料材质制成。需要说明的是，装配孔16不局限于设置在金属底壳10的侧板15，例如，装配孔16设于金属底壳10的底板14也是可以，具体根据实际设计需要而定。
在一些实施例中，装配孔16包括直通孔部161和与直通孔部161连通的锥形孔部162，锥形孔部162设于直通孔部161远离收容腔11的一侧，锥形孔部162的孔径大于直通孔的孔径，凸起331的形状与装配孔的形状相适配。以该实施方式，通过设置装配孔16包括锥形孔部162，注塑后，盆架33外侧面成型的凸起331与金属底壳10之间可以形成倒扣结构，增加了盆架33与金属底壳10的粘结强度，使得盆架33可以稳固地连接在金属底壳10上。
图12中所展示的是装配孔16的另一种变形实施方式，在该实施例中，装配孔16a包括第一直通孔部16a1和与第一直通孔部16a1连通的第二直通孔部16a2，第二直通孔部16a2设于第一直通孔部16a1远离收容腔11的一侧，第二直通孔部16a2的孔径大于第一直通孔部16a1的孔径，凸起的形状与装配孔的形状相适配。同理，该实施方式，注塑后，盆架外侧面成型的凸起与金属底壳之间可以形成倒扣结构，增加了盆架与金属底壳的粘结强度，使得盆架可以稳固地连接在金属底壳上。
图13中所展示的是装配孔的另一种变形实施方式，在该实施例中，装配孔16b为锥形孔，装配孔16b越远离收容腔11，装配孔16b的孔径越大，凸起的形状与装配孔的形状相适配。同理，该实施方式，注塑后，盆架外侧面成型的凸起与金属底壳之间可以形成倒扣结构，增加了盆架与金属底壳的粘结强度，使得盆架可以稳固地连接在金属底壳上。
可以理解地，装配孔不局限于设置为16、16a及16b的设置方式，只要装配孔远离收容腔11的一侧具有较大孔径，使得注塑成型后的盆架，通过凸起与装配孔形成的倒扣结构，使得盆架可以牢固地连接在金属底壳上即可。
如图9，图14-17所示，在一些实施例中，扬声器箱100还包括设于盆架33内侧的透气隔离件40，透气隔离件40及盆架33的顶部围合形成前腔11a，透气隔离件40、金属底壳10及盆架33的底部围合形成后腔11b，振动系统31和磁路系统32设于前腔11a。可选地，透气隔离件40为透气网布。
在一些实施例中，盆架33包括两个间隔设置的子盆架33a，两个子盆架33a分别成型在金属底壳10相对的两侧，以该实施方式，可以缩小盆架33的占用空间，使得扬声器箱具有较大的后腔11b，从而获得较佳的发音效果。当然，盆架33设置成完整的环状结构也是可以的。
示例性地，两个子盆架33a相向的一侧均设有第一台阶332，支撑板40相对的两侧分别搭接于两个子盆架33a的第一台阶332，磁路系统32安装在支撑板40上。
金属底壳10开设有连通后腔11b的填充孔17，后腔11b通过填充孔17填充有吸音颗粒。
可选地，振动系统31包括下音膜311、环形支架312、环形振膜313、音圈骨架314、音圈315及球顶316。示例性地，下音膜311设有两个，两个下音膜311分别位于磁路系统32相对的两侧，下音膜311的外侧夹设于盆架33和环形支架312之间，示例性地，盆架33设有第二台阶333，下音膜311外侧的下表面搭接于第二台阶333，环形支架312贴附于下音膜311外侧的上表面，环形支架312和盆架33从上下两个表面夹紧下音膜311外侧。环形振膜313的外侧与环形支架312的连接。音圈骨架314与下音膜311的内侧和环形振膜313的内侧连接。音圈315与音圈骨架314连接，音圈315在磁路系统32的驱动下上下振动，从而带动下音膜311和环形振膜313上下振动发声。球顶316设于环形振膜313的内侧并安装于音圈骨架314。
在一些实施例中，音圈骨架314包括骨架本体3141和支撑架3142，骨架本体3141呈环状，骨架本体3141的上表面与环形振膜313连接，骨架本体3141下表面连接音圈315和下音膜311的内侧，支撑架3142安装于骨架本体3141的内侧。
在一些实施例中，振动系统31还包括两个分别设于音圈315两相对侧的弹性支撑件317，弹性支撑件317包括与盆架33连接的弹性支撑件本体3171和从弹性支撑件本体3171朝向音圈315方向延伸的弹臂3172，弹臂3172远离弹性支撑件本体3171的一端夹设于下音膜311与骨架本体3141之间。优选地，弹性支撑件317为柔性电路板，除了起到音圈315的弹性支撑的作用，还可以用于音圈315和外界电源的电连接。
磁路系统32包括安装于底框中间的磁碗321、设置于磁碗321中间的主磁钢322、四个设置于磁碗321上并环绕主磁钢322设置的副磁钢323、贴附于主磁钢322之远离磁碗321一侧的主极芯324和设于副磁钢323之远离磁碗321一侧的副极芯325，主磁钢322和副磁钢323间隔设置，音圈315可活动套设于主磁钢322外。可以理解地，副磁钢323不局限于设有四个，例如副磁钢323设有两个，两个副磁钢323分别设置于主磁钢322的两相对侧也是可以的。
如图18所示，在其他一些实施例中，扬声器箱’包括底壳组件10’和扬声器单体20’，底壳组件10’具有收容腔11’，扬声器单体20’至少部分收容于收容腔11’中；底壳组件10’包括金属底壳12’和保护膜13’，金属底壳12’具有所述收容腔11’，保护膜13’贴附于金属底壳12’的外侧面。通过在金属底壳12’的外侧面贴附保护膜13’，在金属底壳12’的后续装配工艺中，保护膜13’可以有效地避免金属底壳12’的外表面被刮花。
可选地，底壳组件10’由贴附有保护膜的金属板一体冲压成型，该制作工艺简单，而且保护膜13’可以避免金属板在冲压的过程中表面刮花。
可选地，保护膜13’为PET（Polyethylene terephthalate，聚对苯二甲酸乙二醇酯）膜、PE（polyethylene，聚乙烯）膜和PVC（Polyvinyl chloride，聚氯乙烯）膜中的任意一种。
可选地，保护膜13’至少包括提供颜色显示的聚合物层，通过改变聚合物层的材料可以改变保护膜13’的颜色，从而可以满足客户对产品颜色的需求。
如图19-20所示，本申请实施例还提供一种终端设备，该移动终端包括壳体400及上述的扬声器箱100，壳体400包括壳体本体200和至少一天线300，壳体本体200设有一侧敞口201的收纳腔202，天线300设于壳体本体200并延伸至敞口201的一侧；扬声器箱100设于收纳腔202且底板14通过敞口201露于收纳腔202外，天线信号干扰关键区12位于底板14靠近天线300的一侧。
可选地，天线300采用激光直接成型技术（Laser Direct
Structuring，LDS）直接成型在壳体本体200上。
提供的终端设备可以是手机、笔记本电脑、平板电脑、可穿戴设备等。
以上所述的仅是本申请的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本申请创造构思的前提下，还可以做出改进，但这些均属于本申请的保护范围。
Claims (9)
- 一种扬声器箱，其特征在于，包括金属底壳和扬声器单体，所述金属底壳具有收容腔，所述扬声器单体包括振动系统、用于驱动所述振动系统振动发声的磁路系统以及用于供所述振动系统和所述磁路系统安装的盆架，所述盆架至少部分收纳于所述收容腔中；所述金属底壳包括底板和侧板，所述侧板围设于所述底板的边缘以形成所述收容腔，所述侧板设有装配孔，所述装配孔远离所述收容腔的一侧具有较大孔径，所述盆架通过注塑成型于所述金属底壳，所述盆架的外侧面成型有嵌于所述装配孔的凸起，所述凸起的形状与所述装配孔的形状相适配。
- 根据权利要求1所述的扬声器箱，其特征在于，所述装配孔包括直通孔部和与所述直通孔部连通的锥形孔部，所述锥形孔部设于所述直通孔部远离所述收容腔的一侧，所述锥形孔部的孔径大于所述直通孔部的孔径，所述凸起的形状与所述装配孔的形状相适配。
- 根据权利要求1所述的扬声器箱，其特征在于，所述装配孔包括第一直通孔部和与所述第一直通孔部连通的第二直通孔部，所述第二直通孔部设于所述第一直通孔部远离所述收容腔的一侧，所述第二直通孔部的孔径大于所述第一直通孔部的孔径，所述凸起的形状与所述装配孔的形状相适配。
- 根据权利要求1所述的扬声器箱，其特征在于，所述装配孔为锥形孔，所述装配孔越远离所述收容腔，所述装配孔的孔径越大，所述凸起的形状与所述装配孔的形状相适配。
- 根据权利要求1至4任一项所述的扬声器箱，其特征在于，所述扬声器箱还包括塑料件，所述金属底壳具有天线信号干扰关键区，所述金属底壳在所述天线信号干扰关键区处设为通孔，所述塑料件嵌于所述通孔中。
- 根据权利要求5所述的扬声器箱，其特征在于，所述塑料件为采用LCP或PBT或PPS或PPO或PP或PET或PEN材料制成的塑料件。
- 根据权利要求5所述的扬声器箱，其特征在于，所述通孔靠近所述收容腔的一侧具有较大孔径。
- 根据权利要求7所述的扬声器箱，其特征在于，所述通孔包括直通孔部和与所述直通孔部连通的锥形孔部，所述锥形孔部与所述收容腔连通，所述锥形孔部的孔径大于所述直通孔部的孔径，所述塑料件的形状与所述通孔的形状相适配。
- 根据权利要求5所述的扬声器箱，其特征在于，所述塑料件通过注塑成型于所述金属底壳。
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| CN112601160B (zh) * | 2020-12-08 | 2022-08-12 | 歌尔股份有限公司 | 一种发声装置和电子装置 |
| CN121056798B (zh) * | 2025-11-04 | 2026-04-03 | 瑞声光电科技(常州)有限公司 | 发声器件 |
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| CN203150693U (zh) * | 2013-04-19 | 2013-08-21 | 广州创启通信设备有限公司 | 可防止无线信号屏蔽的一体化天线组件及智能移动终端 |
| CN205584479U (zh) * | 2016-03-31 | 2016-09-14 | 歌尔声学股份有限公司 | 扬声器模组 |
| CN206433105U (zh) * | 2017-01-12 | 2017-08-22 | 瑞声科技(新加坡)有限公司 | 扬声器 |
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| CN204069319U (zh) * | 2014-07-18 | 2014-12-31 | 瑞声光电科技(常州)有限公司 | 发声器件 |
| CN206524955U (zh) * | 2017-01-20 | 2017-09-26 | 瑞声科技(新加坡)有限公司 | 扬声器箱 |
| CN207200908U (zh) * | 2017-08-29 | 2018-04-06 | 歌尔科技有限公司 | 扬声器模组以及电子设备 |
| CN108632728B (zh) * | 2018-06-25 | 2020-08-11 | 歌尔股份有限公司 | 发声器件及便携终端 |
| CN108810767B (zh) * | 2018-08-03 | 2020-11-17 | 瑞声科技(新加坡)有限公司 | 扬声器及扬声器的制作方法 |
| CN109195078B (zh) * | 2018-08-09 | 2021-02-09 | 瑞声科技(新加坡)有限公司 | 发声器件 |
| CN208638668U (zh) * | 2018-08-09 | 2019-03-22 | 瑞声科技(新加坡)有限公司 | 扬声器 |
| CN208924492U (zh) * | 2018-09-20 | 2019-05-31 | 瑞声科技(新加坡)有限公司 | 扬声器 |
| CN210781330U (zh) * | 2019-11-12 | 2020-06-16 | 瑞声科技(新加坡)有限公司 | 扬声器箱 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203150693U (zh) * | 2013-04-19 | 2013-08-21 | 广州创启通信设备有限公司 | 可防止无线信号屏蔽的一体化天线组件及智能移动终端 |
| CN205584479U (zh) * | 2016-03-31 | 2016-09-14 | 歌尔声学股份有限公司 | 扬声器模组 |
| CN206433105U (zh) * | 2017-01-12 | 2017-08-22 | 瑞声科技(新加坡)有限公司 | 扬声器 |
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| CN112104935B (zh) | 2024-11-01 |
| CN112104935A (zh) | 2020-12-18 |
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