WO2025102767A1 - 发声器件和电子设备 - Google Patents

发声器件和电子设备 Download PDF

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Publication number
WO2025102767A1
WO2025102767A1 PCT/CN2024/103913 CN2024103913W WO2025102767A1 WO 2025102767 A1 WO2025102767 A1 WO 2025102767A1 CN 2024103913 W CN2024103913 W CN 2024103913W WO 2025102767 A1 WO2025102767 A1 WO 2025102767A1
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WO
WIPO (PCT)
Prior art keywords
magnetic circuit
sound
magnetic
diaphragm
vibration
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/103913
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English (en)
French (fr)
Inventor
韩志磊
李波波
刘迎新
蔡晓东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Goertek Inc
Original Assignee
Goertek Inc
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Filing date
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Application filed by Goertek Inc filed Critical Goertek Inc
Publication of WO2025102767A1 publication Critical patent/WO2025102767A1/zh
Anticipated expiration legal-status Critical
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Definitions

  • the present invention relates to the technical field of electroacoustic conversion, and in particular to a sound-generating device and an electronic device using the sound-generating device.
  • micro sound devices are widely used, and with the multi-functional and miniaturized design of portable terminal electronic products, higher requirements are placed on the vibration and acoustic performance of micro sound generators.
  • the effective frequency band of micro speaker modules in smart mobile terminals is narrow, the tone is relatively monotonous, the sound quality is poor, and it cannot meet various functional requirements.
  • the main purpose of the present invention is to provide a sound-generating device and an electronic device, aiming to provide a sound-generating device in which vibration radiation surfaces are independent of each other and arranged at an angle.
  • the sound-generating device not only realizes multifunctional applications, but also effectively improves the sound effect and reduces the production cost.
  • the present invention provides a sound-generating device, which includes a housing, a magnetic circuit system and a vibration system connected to the housing.
  • the magnetic circuit system includes a yoke plate, a first magnetic circuit part and a second magnetic circuit part, wherein the first magnetic circuit part is arranged on the yoke plate, the first magnetic circuit part includes a central magnetic circuit and a side magnetic circuit, the side magnetic circuit is arranged outside the central magnetic circuit and is spaced from the central magnetic circuit to form a first magnetic gap, and the second magnetic circuit part is arranged on a side of the side magnetic circuit away from the central magnetic circuit.
  • the vibration system comprises a first vibration component and a second vibration component which are arranged vertically in vibration direction.
  • the first vibration component is opposite to the first magnetic circuit portion, the first vibration component includes a first diaphragm and a first voice coil, one end of the first voice coil is connected to the first diaphragm, and the other end is suspended in the first magnetic gap;
  • the second vibration component is opposite to the second magnetic circuit portion, and the second vibration component includes a second diaphragm and a second voice coil, the second voice coil is a flat voice coil and the central axis is perpendicular to the second vibration
  • the second voice coil is spaced apart from the second magnetic circuit portion along the vibration direction of the second vibration component, the second voice coil has at least a first wire segment and a second wire segment that are arranged opposite to each other, the current directions in the first wire segment and the second wire segment are opposite, the magnetic flux lines of the second magnetic circuit portion at least partially or at least partially pass through the first wire segment and the second wire segment along the vibration direction of the first vibration component, and the directions of the magnetic flux lines passing through the first wire segment and the second wire segment are opposite, wherein,
  • a metal plate is further provided on a side of the second magnetic circuit portion away from the second voice coil.
  • the metal plate includes a bearing portion for bearing the second magnetic circuit portion and a fixing portion connected to the housing.
  • the second magnetic circuit portion includes at least three magnetic regions, the three magnetic regions include a first magnetic region in the middle and second magnetic regions on both sides, and the arrangement direction of the three magnetic regions is parallel to the vibration direction of the first vibration component.
  • the three magnetic regions are all magnetized along the vibration direction of the second vibration component, and the magnetization directions of the first magnetic region and the second magnetic region are opposite;
  • the first magnetic region is magnetized along the vibration direction of the second vibration component, the magnetization direction of the second magnetic region is perpendicular to the magnetization direction of the first magnetic region, and the magnetic pole of the second magnetic region on a side close to the first magnetic region is the same as the magnetic pole of the first magnetic region on a side close to the second voice coil.
  • the second magnetic circuit portion includes a bar magnet, and the three magnetic regions are three magnetized regions of the bar magnet;
  • the second magnetic circuit portion includes three independent bar magnets, the arrangement direction of the three bar magnets is parallel to the vibration direction of the first vibration component, and the three bar magnets form the three magnetic regions accordingly;
  • the second magnetic circuit portion includes an annular magnet and a bar magnet, the central axis of the annular magnet is parallel to the central axis of the second voice coil, the bar magnet is arranged at the center of the annular magnet, the bar magnet forms the first magnetic zone, and the two opposite sides of the annular magnet form the second magnetic zone.
  • the side magnetic circuit includes a first side magnetic circuit and a second side magnetic circuit, the first side magnetic circuit is located outside the central magnetic circuit and is spaced to form a first sub-gap, the second side magnetic circuit is located outside the central magnetic circuit and is spaced to form a second sub-gap, the first sub-gap is connected to the second sub-gap to form the first magnetic gap, and the second magnetic circuit portion is located on the side of the second side magnetic circuit away from the central magnetic circuit.
  • the size of the second magnetic circuit portion is ⁇ 0.5*the size of the second side magnetic circuit
  • the yoke plate is in the shape of a flat plate, and an outer surface of the yoke plate away from the first vibration component is flush with an outer surface of the housing.
  • the fixing portion is bent and extended from the edge of the bearing portion toward the side where the second voice coil is located, and the fixing portion is embedded in the housing;
  • a side of the second magnetic circuit portion close to the first diaphragm is provided with a notch for avoiding the folding ring of the first diaphragm, and the metal plate has a bending portion corresponding to the notch.
  • first wire segment and the second wire segment are long axis segments of the second voice coil, and the arrangement direction of the first wire segment and the second wire segment is parallel to the vibration direction of the first vibration component;
  • the second diaphragm is a planar diaphragm, or, the second diaphragm includes a second fold ring and a second reinforcement portion provided at the center of the second fold ring;
  • the second voice coil is formed by winding an enameled wire, or the second voice coil includes a coil structure formed by a circuit board and a conductive line arranged on the circuit board;
  • the second diaphragm is a planar diaphragm
  • the material of the planar diaphragm is any one of PEN, LCP, PEEK, carbon paper, and magnesium-lithium alloy
  • the second diaphragm is a planar diaphragm, and a reinforcement portion is provided in a central area of the second diaphragm.
  • the housing includes a first shell and a second shell arranged at an angle, the first shell and the second shell enclose a mounting cavity, the magnetic circuit system is arranged in the mounting cavity, the first diaphragm is connected to the first shell, and the second diaphragm is connected to the second shell.
  • the first vibration assembly further includes a first centering support plate, one end of which is connected to the first shell, and the other end of which is connected to an end of the first voice coil away from the first diaphragm.
  • the first vibration component is used for producing bass sounds, and the second vibration component is used for producing treble sounds;
  • the size of the magnetic circuit system along the vibration direction of the first diaphragm is smaller than the size of the magnetic circuit system The dimension of the second diaphragm along the vibration direction of the second diaphragm.
  • the present invention further provides an electronic device, comprising a device housing and the above-mentioned sound-generating device, wherein the sound-generating device is arranged in the device housing.
  • the sound-generating device of the technical solution of the present invention arranges a vibration system with a first vibration component and a second vibration component, so that the first vibration component is opposite to the magnetic circuit system, and the second vibration component is opposite to the magnetic circuit system.
  • the magnetic circuit system is used to simultaneously provide a magnetic field and a driving force for the first vibration component and the second vibration component, so as to improve the utilization rate of the magnetic field while reducing the cost and size.
  • the vibration direction of the first vibration component and the vibration direction of the second vibration component are further arranged to be at an angle, so that the vibration system can form two vibration radiation surfaces that are independent of each other and arranged at an angle, which not only realizes multi-functional applications, but also effectively improves the sound-generating effect.
  • FIG1 is a schematic structural diagram of a sound-generating device according to an embodiment of the present invention.
  • FIG2 is a schematic structural diagram of a sound-generating device from another perspective in one embodiment of the present invention.
  • FIG3 is an exploded schematic diagram of a sound generating device in one embodiment of the present invention.
  • FIG4 is a cross-sectional schematic diagram of a sound generating device in one embodiment of the present invention.
  • FIG5 is a cross-sectional schematic diagram of a partial structure of a sound-generating device in one embodiment of the present invention.
  • FIG6 is a schematic diagram of a partial structure of a sound-generating device according to an embodiment of the present invention.
  • FIG7 is a schematic diagram of a partial structure of a sound-generating device according to an embodiment of the present invention.
  • FIG8 is a schematic diagram of a partial structure of a sound-generating device according to an embodiment of the present invention.
  • FIG9 is a cross-sectional schematic diagram of a partial structure of a sound-generating device in one embodiment of the present invention.
  • FIG10 is a cross-sectional schematic diagram of a partial structure of a sound-generating device in one embodiment of the present invention.
  • FIG11 is a cross-sectional schematic diagram of a partial structure of a sound-generating device in one embodiment of the present invention.
  • FIG12 is a cross-sectional schematic diagram of a partial structure of a sound-generating device in one embodiment of the present invention.
  • FIG13 is an enlarged schematic diagram of point D in FIG12;
  • FIG14 is a schematic diagram of the structure of a housing in one embodiment of the present invention.
  • FIG15 is a schematic structural diagram of a sound-generating device from another perspective in one embodiment of the present invention.
  • FIG16 is a three-dimensional schematic diagram of a sound module in one embodiment of the present invention with part of the module housing removed;
  • FIG17 is an exploded schematic diagram of a sound module in one embodiment of the present invention.
  • FIG18 is a schematic structural diagram of a lower shell of a sound module in one embodiment of the present invention.
  • FIG19 is a plan view of a sound module according to an embodiment of the present invention.
  • Fig. 20 is a schematic cross-sectional view along line B-B in Fig. 19;
  • Figure 21 is a schematic cross-sectional view along line A-A in Figure 19.
  • micro sound devices are widely used, and with the multi-functional and miniaturized design of portable terminal electronic products, higher requirements are placed on the vibration and acoustic performance of micro sound generators.
  • the effective frequency band of micro speaker modules in smart mobile terminals is narrow, the tone is relatively monotonous, the sound quality is poor, and it cannot meet various functional requirements.
  • the present invention proposes a sound device 100. It can be understood that the sound device 100 is applied to electronic devices, which may be mobile phones, speakers, computers, headphones, watches or televisions, or the sound device 100 is applied to speaker modules, etc., which are not limited here.
  • the sound-generating device 100 includes a magnetic circuit system 2 and a vibration system 3.
  • the vibration system 3 includes a first vibration component 31 and a second vibration component 32.
  • the first vibration component 31 is opposite to the magnetic circuit system 2
  • the second vibration component 32 is opposite to the magnetic circuit system 2.
  • the vibration direction of the first vibration component 31 is set at an angle to the vibration direction of the second vibration component 32.
  • the sound-generating device 100 of the present invention is provided with a first vibration component 31 and a second vibration component 32 in the vibration system 3, so that the first vibration component 31 is opposite to the magnetic circuit system 2, and the second vibration component 32 is opposite to the magnetic circuit system 2.
  • the magnetic circuit system 2 is used to provide a magnetic field and a driving force for the first vibration component 31 and the second vibration component 32 at the same time, so as to improve the utilization rate of the magnetic field and reduce the cost.
  • the vibration direction of the first vibration component 31 and the vibration direction of the second vibration component 32 are further set to be set at an angle, so that the vibration system 3 can form two vibration radiation surfaces that are independent of each other and set at an angle, which not only realizes multifunctional applications, but also effectively improves the sound-generating effect.
  • the vibration directions of the first vibration component 31 and the second vibration component 32 are set vertically.
  • the sound-generating device 100 further includes a housing 1, the housing 1 includes a first housing 12 and a second housing 13 arranged at an angle, the first housing 12 and the second housing 13 enclose a mounting cavity, the magnetic circuit system 2 is arranged in the mounting cavity, the first vibration component 31 is connected to the first housing 12 and is opposite to the magnetic circuit system 2, the second vibration component 32 is connected to the second housing 13 and is opposite to the magnetic circuit system 2, and the vibration direction of the first vibration component 31 is arranged at an angle to the vibration direction of the second vibration component 32.
  • the first housing 12 and the second housing 13 are an integrally formed structure, thereby improving the structural strength and stability of the housing 1. It can be understood that the first housing 12 and the second housing 13 enclose a mounting cavity, and the mounting cavity can be a through cavity or a through slot structure.
  • the first housing 12 and the second housing 13 are arranged vertically.
  • the first shell 12 is a rectangular structure, and the first shell 12 has two opposite long sides and two short sides, and the two ends of the short sides are respectively connected to the two long sides, and the two ends of the long sides are respectively connected to the two short sides.
  • the second shell 13 is connected to the long side or the short side of the first shell 12, so that the second shell 13 is arranged vertically with the first shell 12.
  • the second shell 13 can be optionally a rectangular structure, and the second shell 13 has two opposite long sides and two short sides, and the two ends of the short sides are respectively connected to the two long sides, and the two ends of the long sides are respectively connected to the two short sides.
  • the first shell 12 and the second shell 13 share a long side or a short side, that is, the first shell 12 and the second shell 13 have a common common side 14.
  • the two long sides and the two short sides of the first shell 12 define a first opening
  • the two long sides and the two short sides of the second shell 13 define a second opening
  • the first opening and the second opening are respectively connected to the installation cavity.
  • the two openings are located on two adjacent surfaces of the housing 1 .
  • the magnetic circuit system 2 is fixed to the housing 1 by bonding or welding.
  • the side magnetic conductive plate 235 of the magnetic circuit system 2 is first injection molded into the housing 1 as an insert, or the magnetic circuit system 2 is fixed to the housing 1 by bonding, and then other parts are bonded and fixed, which is not limited here.
  • the magnetic circuit system 2 is arranged in the installation cavity of the housing 1 and connected to the first shell 12 and the second shell 13 of the housing 1.
  • the vibration system 3 is connected to the first shell 12 and the second shell 13 of the housing 1 and is opposite to the magnetic circuit system 2. It can be understood that the first vibration component 31 of the vibration system 3 is connected to the first shell 12 and covers the first opening, and the second vibration component 32 is connected to the second shell 13 and covers the second opening, so that the first shell 12 and the second shell 13 of the housing 1, the first vibration component 31 and the second vibration component 32 and the magnetic circuit system 2 together enclose a vibration space.
  • the magnetic circuit system 2 provides a magnetic field and a driving force for the first vibration component 31 and the second vibration component 32, so that the first vibration component 31 and the second vibration component 32 share the magnetic circuit system 2, thereby improving the utilization rate of the magnetic field and reducing the cost of the sound-generating device 100.
  • the vibration direction of the first vibration component 31 is perpendicular to the vibration direction of the second vibration component 32.
  • the sound-generating device 100 of the present invention simplifies the design and assembly process of the sound-generating device 100 and facilitates production by configuring the housing 1 to be an angled first shell 12 and a second shell 13 that are enclosed to form a mounting cavity, thereby utilizing the mounting cavity to mount and fix the magnetic circuit system 2 and the vibration system 3.
  • the dimension of the magnetic circuit system 2 along the vibration direction of the first vibration component 31 is smaller than its dimension along the vibration direction of the second vibration component 32 , so that the size of the sound-generating device 100 can be reduced, facilitating the miniaturized design of the sound-generating device 100 .
  • the magnetic circuit system 2 includes a yoke plate 21, a first magnetic circuit portion 22, and a second magnetic circuit portion 23.
  • the first magnetic circuit portion 22 is provided on the yoke plate 21, and the first magnetic circuit portion 22 has a first magnetic gap 221.
  • the second magnetic circuit portion 23 is provided on the peripheral side of a portion of the first magnetic circuit portion 22, and the second magnetic circuit portion 23 drives the second vibration component 32 to vibrate.
  • the second magnetic circuit portion 23 is provided on the peripheral side of a portion of the first magnetic circuit portion 22 and is opposite to the second vibration system 3, so that the occupation of the thickness (Z-axis) direction of the sound-generating device 100 is beneficial to the flattening of the sound-generating device 100 and the thinning of the electronic device.
  • the first magnetic circuit portion 22 includes a central magnetic circuit 222 and a side magnetic circuit 223, wherein the side magnetic circuit 223 is disposed outside the central magnetic circuit 222 and is spaced apart from the central magnetic circuit 222 to form a first magnetic gap 221;
  • a vibration component 31 is opposite to the first magnetic circuit portion 22.
  • the first vibration component 31 includes a first diaphragm 311 and a first voice coil 312. One end of the first voice coil 312 is connected to the first diaphragm 311, and the other end is suspended in the first magnetic gap 221. It can be understood that the first magnetic gap 221 surrounds the central magnetic circuit 222, and the first voice coil 312 is arranged around the central magnetic circuit 222.
  • the second magnetic circuit portion 23 is arranged on a side of the partial side magnetic circuit 223 away from the central magnetic circuit 222, the second vibration component 32 is opposite to the second magnetic circuit portion 23, the second vibration component 32 includes a second diaphragm 321 and a second voice coil 323, the second voice coil 323 is a flat voice coil and the central axis is perpendicular to the second diaphragm 321, the second voice coil 323 and the second magnetic circuit portion 23 are spaced apart along the vibration direction of the second vibration component 32, the second voice coil 323 has at least a first wire segment 3231 and a second wire segment 3232 arranged opposite to each other, the current directions in the first wire segment 3231 and the second wire segment 3232 are opposite, the magnetic flux of the second magnetic circuit portion 23 at least partially or at least partially passes through the first wire segment 3231 and the second wire segment 3232 along the vibration direction of the first vibration component 31, and the directions of the magnetic flux passing through the first wire segment 3231 and the second wire segment 3232 are opposite.
  • the yoke plate 21 of the magnetic circuit system 2 provides a mounting and fixing foundation for the first magnetic circuit part 22, and the first magnetic circuit part 22 can be connected and fixed to the yoke plate 21 by bonding.
  • the first magnetic gap 221 in the first magnetic circuit part 22 is used to provide a space for the first voice coil to avoid and vibrate.
  • the second magnetic circuit part 23 By setting the second magnetic circuit part 23 on the side of the partial side magnetic circuit 223 away from the central magnetic circuit 222 and setting the second voice coil 323 as a flat voice coil with the central axis perpendicular to the second diaphragm 321, at least part of the magnetic flux of the second magnetic circuit part 23 or at least part of its component passes through the first wire segment 3231 and the second wire segment 3232 along the vibration direction of the first vibration component 31, so that the second magnetic circuit part 23 is used to provide the second voice coil 323 with a driving force and a vibration space, while making the structure of the entire magnetic circuit system 2 more compact and reducing the size of the magnetic circuit system 2.
  • the second magnetic circuit portion 23 includes at least three magnetic regions, including a first magnetic region 231 in the middle and second magnetic regions 232 on both sides, and the arrangement direction of the three magnetic regions is parallel to the vibration direction of the first vibration component 31. In this way, the utilization rate of the magnetic circuit system 2 can be improved, the BL value of the second magnetic circuit portion 23 can be improved, and the sound performance of the second vibration component 32 can be improved.
  • the three magnetic regions are magnetized along the vibration direction of the second vibration component 32, and the magnetization directions of the first magnetic region 231 and the second magnetic region 232 are opposite; or, as shown in FIG10 , the first magnetic region 231 is magnetized along the vibration direction of the second vibration component 32, and the magnetization direction of the second magnetic region 232 is perpendicular to the magnetization direction of the first magnetic region 231, and the magnetic pole of the second magnetic region 232 on the side close to the first magnetic region 231 is parallel to the first magnetic region 231.
  • the magnetic poles of the side of the first wire segment 3231 close to the second voice coil 323 are the same. In this way, the first wire segment 3231 and the second wire segment 3232 can vibrate in the same direction to cut the magnetic flux lines, thereby driving the second diaphragm 321 to vibrate and produce sound.
  • the second magnetic circuit portion 23 includes a bar magnet 233, and the three magnetic zones are three magnetized regions of the bar magnet 233; or, the second magnetic circuit portion 23 includes three independent bar magnets 233, the arrangement direction of the three bar magnets 233 is parallel to the vibration direction of the first vibration component 31, and the three bar magnets 233 form three magnetic zones correspondingly; or, the second magnetic circuit portion 23 includes a ring magnet 234 and a bar magnet 233, the central axis of the ring magnet 234 is parallel to the central axis of the second voice coil 323, the bar magnet 233 is arranged at the center of the ring magnet 234, the bar magnet 233 forms the first magnetic zone 231, and the two opposite sides of the ring magnet 234 form the second magnetic zone 232.
  • the bar magnet 233 has a simple structure and is easy to process, and the ring magnet 234 has a strong structural strength, which improves its structural reliability.
  • the second magnetic circuit portion 23 of the sound-generating device 100 can have different settings, which can be flexibly selected during use.
  • the second magnetic circuit portion 23 is disposed on the yoke plate 21, and is disposed on the same side of the yoke plate 21 as the first magnetic circuit portion 22.
  • the yoke plate 21 provides a mounting and fixing base for the first magnetic circuit portion 22 and the second magnetic circuit portion 23, and the first magnetic circuit portion 22 and the second magnetic circuit portion 23 are disposed on the side of the yoke plate 21 facing the housing 1, and the magnetic circuit system 2 is connected to the first shell 12 and the second shell 13 of the housing 1 through the first magnetic circuit portion 22 and the second magnetic circuit portion 23.
  • first magnetic circuit portion 22 and the second magnetic circuit portion 23 can be connected and fixed to the yoke plate 21 by bonding or other methods, which is not limited here.
  • a magnetic conductive plate 235 is further provided on a side of the second magnetic circuit portion 23 away from the second voice coil 323 , so that the BL value of the second magnetic circuit portion 23 can be further increased, thereby increasing the driving force on the second voice coil 323 .
  • the yoke plate 21 is in a flat plate shape, so that the shape of the sound device 100 is more regular, and the adaptability of the sound device 100 to different installation environments is enhanced.
  • the outer surface of the yoke plate 21 away from the first vibration component 31 is flush with the outer surface of the housing 1.
  • the size of the second magnetic circuit portion 23 is larger than the size of the first magnetic circuit portion 22.
  • the height dimension of the sound generating device 100 along the vibration direction of the first vibration component 31 can be fully utilized to set the second magnetic circuit portion 23, increase the size of the magnetic region of the second magnetic circuit portion 23, and increase the driving force on the second voice coil 323.
  • the side magnetic circuit 223 includes a first side magnetic circuit 223 and a second side magnetic circuit 223.
  • the first side magnetic circuit 223 is located on the outside of the central magnetic circuit 222 and is spaced to form a first sub-gap 2211.
  • the second side magnetic circuit 223 is located on the outside of the central magnetic circuit 222 and is spaced to form a second sub-gap 2212.
  • the first sub-gap 2211 is connected to the second sub-gap 2212 to form a first magnetic gap 221.
  • the second magnetic circuit portion 23 is located on the side of the second side magnetic circuit 2232 away from the central magnetic circuit 222.
  • the side magnetic circuit 223 includes a plurality of side magnetic circuits 223, the plurality of side magnetic circuits 223 are arranged around the central magnetic circuit 222, and are spaced from the central magnetic circuit 222 to form a first magnetic gap 221, and the plurality of side magnetic circuits 223 include a first side magnetic circuit 2231 and a second side magnetic circuit 2232.
  • the side magnetic circuit 223 includes four, one is the second side magnetic circuit 2232, and three are the first side magnetic circuits 2231.
  • the three first side magnetic circuits 2231 are spaced outside the central magnetic circuit 222, and are spaced from the central magnetic circuit 222 to form a first sub-gap 2211
  • the second side magnetic circuit 2232 is located on the side of the first common magnetic circuit that is opposite to the central magnetic circuit 222, and is spaced to form a second sub-gap 2212
  • the first sub-gap 2211 is connected to the second sub-gap 2212 to form a first magnetic gap 221.
  • the second magnetic circuit portion 23 is set only on the side of the second side magnetic circuit 2232 away from the central magnetic circuit 222.
  • the size of the sound-generating device 100 along the axial direction of the second voice coil 323 is further reduced, which is conducive to the miniaturization development of the sound-generating device 100.
  • the size of the second side magnetic circuit 2232 is less than or equal to the size of the first side magnetic circuit 2231 opposite to the second side magnetic circuit 2232 and is greater than or equal to half the size of the first side magnetic circuit 2231 opposite to the second side magnetic circuit 2232. In this way, installation space can be made available for the second magnetic circuit portion 23, without increasing the size of the magnetic circuit system 2 along the vibration direction of the second voice coil 323 too much, and the miniaturized design of the sound generating device 100 can be utilized.
  • the size of the second magnetic circuit portion 23 is less than or equal to half the size of the second side magnetic circuit 2232. In this way, sufficient driving force can be provided to the second voice coil 323 without additionally increasing the size of the sound generating device 100.
  • a metal plate 236 is further provided on the side of the second magnetic circuit portion 23 away from the second voice coil 323, and the metal plate 236 includes a bearing portion 2361 that bears the second magnetic circuit portion 23 and a fixing portion 2362 connected to the housing 1.
  • the metal plate 236 is further connected to the housing 1 and bears the second magnetic circuit portion 23, thereby enhancing the connection strength between the second magnetic circuit portion 23 and the housing 1 and improving the installation reliability of the second magnetic circuit portion 23.
  • the metal plate 236 is made of stainless steel or other materials.
  • the fixing portion 2362 is bent and extended from the edge of the bearing portion 2361 toward the side where the second voice coil 323 is located, and the fixing portion 2362 is embedded in the housing 1. Inside the housing 1.
  • the fold of the first diaphragm 311 is recessed toward the magnetic circuit system 2, and a notch (not shown in the figure) is provided on the side of the second magnetic circuit portion 23 close to the first diaphragm 311 to avoid the fold of the first diaphragm 311.
  • the second magnetic circuit portion 23 fully utilizes the height space of the sound device 100 to maximize the second magnetic circuit portion 23 while avoiding mutual interference with the first vibration component 31, thereby improving the sound quality effect and working reliability of the sound device 100.
  • the first wire segment 3231 and the second wire segment 3232 are long axis segments of the second voice coil 323, and the arrangement direction of the first wire segment 3231 and the second wire segment 3232 is parallel to the vibration direction of the first vibration component 31.
  • the two long axis segments of the second voice coil 323 are arranged along the vibration direction of the first vibration component 31, which can optimize the structural design of the sound device 100, reduce the height of the sound device 100, and facilitate the thinning of the sound device 100.
  • the yoke plate 21 is in the shape of a flat plate, and is provided with a recessed portion 211, and the second magnetic circuit portion 23 is provided in the recessed portion 211.
  • the flat plate shape of the yoke plate 21 makes the appearance of the sound-generating device 100 more regular, and enhances the adaptability of the sound-generating device 100.
  • the yoke iron may further be provided with a recessed portion 211 for accommodating the second magnetic circuit portion 23, and the height of the recessed portion 211 is used to compensate for the thickness of the second magnetic force portion, thereby enhancing the driving force of the second magnetic circuit portion 23 on the second voice coil 323.
  • the second diaphragm 321 is a planar diaphragm.
  • the manufacturing process of the planar diaphragm is simple, which reduces the production cost.
  • the material of the planar diaphragm is any one of PEN, LCP, PEEK, carbon paper, and magnesium-lithium alloy. The above materials have high rigidity and low density.
  • the manufactured planar diaphragm is lightweight, which improves the sound performance of the planar diaphragm.
  • a reinforcement part is provided in the central area of the planar diaphragm, which can further improve the rigidity of the planar diaphragm and improve its sound performance.
  • the material of the reinforcement part is any one of PEN, LCP, PEEK, carbon paper, and magnesium-lithium alloy. It can be flexibly selected according to needs.
  • the second diaphragm 321 includes a second fold ring and a second reinforcement portion 322 disposed at the center of the second fold ring.
  • the width or material of the second fold ring can be further adjusted to adjust the resonance frequency to meet usage requirements.
  • the first diaphragm 311 of the sound-generating device of the present application includes a first fold ring and a first reinforcement portion 314, and the first reinforcement portion 314 is connected to the central area of the first fold ring.
  • the resonance frequency of the first diaphragm 311 can be adjusted to meet the use requirements by adjusting the width or material of the first fold ring.
  • the first voice coil 312 is an annular voice coil, and the first voice coil 312 is arranged around the central magnetic circuit 222.
  • the aspect ratio of the inner diameter of the second voice coil 323 is ⁇ 20, so as to reduce the second voice coil 323
  • the second voice coil 323 includes a plurality of second voice coils, the aspect ratio of the inner diameter of each second voice coil 323 is less than or equal to 20, and the second voice coils 323 are distributed along the extension direction of the first wire segment 3231.
  • the second voice coil 323 is set to be multiple, and accordingly, the bar magnet 233 or the ring magnet 234 of the second magnetic circuit part 23 is also correspondingly set to be multiple, which can reduce the breakage rate of the bar magnet 233 or the ring magnet 234 and improve its structural reliability.
  • the second voice coil 323 is formed by winding an enameled wire, or the second voice coil 323 includes a coil structure formed by a circuit board and a conductive line arranged on the circuit board.
  • a flat voice coil has a smaller axial dimension, which can further reduce the space occupied by the sound device 100 along the vibration direction of the second vibration component 32.
  • the yoke plate 21 is provided with an air leakage hole 212, and the air leakage hole 212 is connected to the first magnetic gap 221.
  • the sound-generating device 100 also includes an isolation net provided corresponding to the air leakage hole 212. The air pressure balance of the vibration space in the sound-generating device 100 can be ensured to ensure the vibration balance of the first vibration component 31 and the second vibration component 32.
  • the isolation net covers the air leakage hole 212 to prevent impurities or sound-absorbing particles from entering the sound-generating device 100 from the air leakage hole 212, thereby affecting the performance of the sound-generating device 100.
  • the first vibration assembly 31 further includes a centering support 313, one end of the centering support 313 is connected to the first housing 12, and the other end of the centering support 313 is connected to an end of the first voice coil 312 away from the first diaphragm 311.
  • the centering support 313 is used to balance and stabilize the vibration of the first voice coil 312 to prevent the first voice coil 312 from swinging or polarizing.
  • the centering support 313 includes four, and the four centering support 313 are arranged corresponding to the four gaps of the first magnetic circuit part 22 of the magnetic circuit system 2.
  • the centering support 313 includes two, and the two centering support 313 are arranged on both sides of the short axis of the first voice coil 312.
  • the centering support 313 includes an outer fixing portion 2362, an inner fixing portion 2362, and an elastic portion connected between the outer fixing portion 2362 and the inner fixing portion 2362, the outer fixing portion 2362 is connected to the first shell 12 of the housing 1, and the inner fixing portion 2362 is connected to the first voice coil 312.
  • the centering support plate 313 can be made of PI material, or the centering support plate 313 can be made of FPCB, or a conductive circuit is provided in the centering support plate 313, so that one end of the centering support plate 313 can be conductively connected to the lead of the first voice coil 312, and the other end of the centering support plate 313 is fixed on the housing 1 for connection with an external circuit.
  • the external circuit is connected to the first voice coil 312 by using the centering support plate 313, which effectively avoids the risk of the lead of the first voice coil 312 being broken during vibration.
  • the outer end of the centering support 313 is connected to the surface of the first shell 12 facing away from the first diaphragm 311 , the inner end of the centering support 313 is connected to one end of the first voice coil 312 away from the first diaphragm 311 , the inner end has a first inner pad electrically connected to the lead of the first voice coil 312 , and the outer end has a first outer pad 3132 electrically connected to the external circuit;
  • the housing 1 is provided with a conductive insert 15 , the conductive insert 15 has a second inner pad 151 electrically connected to the second voice coil 323 and a second outer pad 152 electrically connected to the external circuit, the second inner pad 151 is exposed on the surface of the second shell 13 facing the second diaphragm 321 , the second outer pad 152 is exposed on the surface of the first shell 12 facing away from the first diaphragm 311 , and further, the first outer pad 3132 and
  • first external solder pad 3132 and the second external solder pad 152 are located on the same side of the first shell 12.
  • an external electrical connector such as a flexible circuit board
  • a lead groove 132 is provided on the surface where the second housing 13 is connected to the second diaphragm 321, and the lead wire of the second voice coil 323 is led out through the lead groove 132 and connected to the second inner pad 151.
  • the lead wire of the second voice coil 323 is led out through the lead groove 132, which can maintain the flatness of the bonding surface of the second housing 13 and the second diaphragm 321, improve the bonding strength between the two, and at the same time improve the waterproof performance of the second diaphragm 321.
  • the first shell 12 and the second shell 13 have a common edge 14, and the conductive inserts 15 include two, one of which is arranged at the common edge 14 and has two ends respectively forming a second outer pad 152 exposed to the first shell 12 and a second inner pad 151 exposed to the second shell 13, and one end of the other conductive insert 15 is arranged at the common edge 14 and forms a second inner pad 151 exposed to the second shell 13, and the other end extends along the edge of the first shell 12 to the side where the first outer pad 3132 is located.
  • the conductive insert 15 is embedded in the housing 1 to improve its installation reliability.
  • the second shell 13 includes two long sides and two short sides connected alternately, the second inner pads 151 include two and are located at both ends of the second shell 13 along the extension direction of one long side, and the outer edge of the second diaphragm 321 along the extension direction of the long side is located on the inner side of the two second inner pads 151. That is, the two second inner pads 151 are symmetrically arranged at both ends of the long side of the second diaphragm 321.
  • the design of the first pad is simplified, which is convenient for process implementation.
  • the surface where the second shell 13 is connected to the second diaphragm 321 is provided with a lead groove 132, and the lead of the second voice coil 323 is connected to the second inner pad 151 after being led out through the lead groove 132, and the second diaphragm 321 covers the lead groove 132.
  • the outer edge of the first diaphragm 311 and the second The outer edge of the diaphragm 321 is at least partially overlapped.
  • the first housing 12 and the second housing 13 have a common edge 14
  • the first diaphragm 311 and the second diaphragm 321 are both connected to the common edge 14
  • the outer edge of the first diaphragm 311 on the side close to the second diaphragm 321 and the outer edge of the second diaphragm 321 on the side close to the first diaphragm 311 are at least partially overlapped.
  • the outer edge of the second diaphragm 321 has a second flange 3211 connected to the second housing 13, and the second flange 3211 opposite to the common edge 14 is at least partially overlapped with the outer edge of the first diaphragm 311.
  • Providing the second flange 3211 can increase the bonding area between the second diaphragm 321 and the second housing 13, and improve the waterproof performance of the second diaphragm 321.
  • a second recessed platform 141 is provided at the common edge 14 corresponding to the second flange 3211, so that the thickness of the shell wall of the common edge 14 can be reduced.
  • the outer edge of the first diaphragm 311 close to the second diaphragm 321 is arranged between the common edge 14 and the second flange 3211.
  • the path to enter the sound-emitting device 100 is extended, and the risk of entering the sound-emitting device 100 is reduced.
  • the outer edges of the two long sides of the second diaphragm 321 are provided with second flanges 3211, and the common edge 14 is opposite to the long side of the second diaphragm 321.
  • the long side of the second diaphragm 321 is provided with the second flange 3211 and combined with the outer edge of the first diaphragm 311, which can further improve the waterproof performance of the sound device 100.
  • the outer edge of the first diaphragm 311 has a first flange (not shown) connected to the first housing 12, and the first flange opposite to the common edge 14 is at least partially overlapped with the outer edge of the second diaphragm 321.
  • Providing the first flange can increase the bonding area between the first diaphragm 311 and the first housing 12, and improve the waterproof performance of the first diaphragm 311.
  • a first sink (not shown in the figure) is provided at the common edge 14 corresponding to the first flange, so that the thickness of the shell wall of the common edge 14 can be reduced.
  • the outer surface of the sound-emitting device 100 is smoother.
  • the outer edge of the second diaphragm 321 close to the first diaphragm 311 is arranged between the common edge 14 and the first flange.
  • the path of entering the sound-generating device 100 is extended, and the liquid entering the interior of the sound-generating device 100 is shortened. Risks are reduced.
  • the outer edge of the second diaphragm 321 has a second flange 3211 connected to the second housing 13, and the outer edge of the first diaphragm 311 has a first flange connected to the first housing 12, and both the first flange and the second flange 3211 are connected to the common edge 14.
  • Providing the second flange 3211 can increase the bonding area between the second diaphragm 321 and the second housing 13, and providing the first flange can increase the bonding area between the first diaphragm 311 and the first housing 12, thereby improving the waterproof performance of the first diaphragm 311.
  • the first flange opposite to the common edge 14 is provided between the common edge 14 and the second diaphragm 321, which can extend the path of the external liquid from the bonding area between the first diaphragm 311 and the common edge 14 to the inside of the sound device 100.
  • the second flange 3211 opposite to the common edge 14 is provided between the first diaphragm 311 and the common edge 14, which can extend the path of the external liquid from the bonding area between the second diaphragm 321 and the common edge 14 to the inside of the sound device 100.
  • the common edge 14 is provided with a first sunken platform corresponding to the first flange, or the common edge 14 is provided with a second sunken platform 141 corresponding to the second flange 3211, or the common edge 14 is provided with a first sunken platform corresponding to the first flange and a second sunken platform 141 corresponding to the second flange 3211.
  • the thickness of the shell wall of the common edge 14 can be reduced, and when the first diaphragm 311 and the second diaphragm 321 are both bonded to the common edge 14, the outer surface of the sound device 100 is smoother.
  • the vibration direction of the first diaphragm 311 is perpendicular to the vibration direction of the second diaphragm 321 , which facilitates the installation of the first voice coil 312 and the second voice coil 323 , making the magnetic system more regular and facilitating production.
  • the dimension of the sound device 100 along the vibration direction of the first diaphragm 311 is smaller than the dimension of the sound device 100 along the vibration direction of the second diaphragm 321.
  • the sound device 100 has a flat structure, which facilitates the thin design of the application end when adapted to the application end, thereby improving the user experience.
  • the first vibration component 31 is used for bass sound generation
  • the second vibration component 32 is used for treble sound generation. In this way, the bandwidth of the sound-generating device 100 can be expanded, making the timbre of the sound-generating device 100 fuller and rounder.
  • the present invention further provides a sound module 400, which includes the above-mentioned sound device 100 and a module housing, wherein the module housing has a receiving space, the sound unit is received in the receiving space, the module housing has a support wall 412 and a sound output portion 411 connected to the support wall 412, the sound device 100 is provided with a first vibration component 31, one side of which is connected to the support wall 412, The sound-generating device 100 is provided with a second vibration component 32 at one side connected to the sound-emitting portion 411 , and the sound-emitting portion 411 transmits the sound waves of the first vibration component 31 and the sound waves of the second vibration component 32 to the outside.
  • the sound module 400 which includes the above-mentioned sound device 100 and a module housing, wherein the module housing has a receiving space, the sound unit is received in the receiving space, the module housing has a support wall 412 and a sound output portion 411 connected to the support wall 412, the sound device 100 is provided with a first vibration component 31, one side
  • the sound device 100 is arranged in the accommodation space and forms a rear sound cavity (not shown in the figures) between the module shell.
  • the rear sound cavity can be further used to fill sound-absorbing particles, thereby effectively improving the low-frequency performance and acoustic performance of the sound module 400.
  • the vibration direction of the first vibration component 31 and the vibration direction of the second vibration component 32 are set at an angle, and the sound waves of the first vibration component 31 and the second vibration component 32 are radiated to the outside through the sound output part 411, thereby broadening the frequency band of the sound module 400 and making the sound of the sound module 400 richer and fuller.
  • the sound outlet 411 is located on the peripheral side of the module shell, the sound outlet 411 is opposite to and connected to the second vibration component 32, the sound waves of the second vibration component 32 are radiated outwardly through the sound outlet 411, a first front cavity 40 is formed between the first vibration component 31 and the module shell, the support wall 412 is provided with a first break 4121, the first front cavity 40 is connected to the sound outlet 411 through the first break 4121, and the sound waves of the first vibration component 31 are radiated outwardly through the first front cavity 40, the first break 4121, and the sound outlet 411.
  • the sound waves of the first vibration component 31 and the second vibration component 32 are radiated to the outside world by the sound outlet 411, broadening the frequency band of the sound module 400 and improving its sound effect.
  • a dustproof net is further provided on the sound outlet 411 to prevent external dust or impurities from entering the interior of the sound outlet 411 and affecting its sound effect.
  • the sound outlet portion 411 has a first sound outlet channel 4111 and a second sound outlet channel 4112, the first sound outlet channel 4111 and the second sound outlet channel 4112 are isolated from each other, the first sound outlet channel 4111 is opposite to and connected with the second vibration component 32, and the sound waves of the second vibration component 32 radiate outward through the first sound outlet channel 4111; the first break 4121 and the second sound outlet channel 4112 are connected, and the sound waves of the first vibration component 31 radiate outward through the first front cavity 40, the first break 4121, and the second sound outlet channel 4112.
  • first sound outlet channel 4111 and the second sound outlet channel 4112 are hollow structures, so that the sound emitted by the second vibration component 32 can be smoothly transmitted through the first sound outlet channel 4111, and the sound emitted by the first vibration component 31 can be smoothly transmitted through the second sound outlet channel 4112, thereby improving the sound effect of the sound module 400.
  • the first sound outlet channel 4111 and the second sound outlet channel 4112 are isolated from each other, that is, the sound waves of the first vibration component 31 and the sound waves of the second vibration component 32 are radiated outward through different radiation paths. In this way, the space between the first vibration component 31 and the second vibration component 32 and the module shell is divided into different radiation paths, which can improve the high-frequency performance of the sound module 400.
  • the second sound outlet channel 4112 includes two, and the two second sound outlet channels 4112 are respectively arranged on opposite sides of the first sound outlet channel 4111, so that the first sound outlet channel 4111 can be directly opposite to the second vibration component 32, so that the sound waves of the second vibration component 32 are directly radiated to the outside, thereby improving the high-frequency performance of the sound module 400.
  • the first break 4121 and the first sound outlet channel 4111 are isolated from each other, and the first break 4121 is divided into two parts located on both sides of the first sound outlet channel 4111, which are respectively connected to a second sound outlet channel 4112.
  • the second sound outlet channel 4112 and the first sound outlet channel 4111 are flared, and the caliber of the side away from the sound device 100 is larger than the caliber of the side close to the sound device 100.
  • the second sound outlet channel 4112 can also be one, which is not limited here.
  • a sound-guiding pipe 43 is provided between the sound-emitting portion 411 and the second vibration component 32, the sound-guiding pipe 43 is connected to the periphery of the second vibration component 32 and is correspondingly connected to the first sound outlet channel 4111, and the sound waves of the second vibration component 32 are radiated outward through the sound-guiding pipe 43 and the first sound outlet channel 4111;
  • a first avoidance channel 44 is provided between the sound-emitting portion 411 and the sound-guiding pipe 43, the first avoidance channel 44 is opposite to and connected to the first break 4121, and the sound waves of the first vibration component 31 are radiated outward through the first front cavity 40, the first break 4121, the first avoidance channel 44 and the second sound outlet channel 4112.
  • the sound-guiding pipe 43 is a hollow structure, so that the sound emitted by the second vibration component 32 can be smoothly transmitted through the sound-guiding pipe 43, thereby improving the sound effect of the sound module 400.
  • the inner wall of the sound outlet portion 411 and the outer wall of the sound guide pipe 43 are connected, and the first avoidance channel 44 is formed between the sound guide pipe 43 and the sound outlet portion 411, specifically between the inner wall of the sound outlet portion 411 and the outer wall of the sound guide pipe 43.
  • the first avoidance channel 44 is formed by the inner wall forming the second sound outlet channel 4112 being recessed in a direction away from the second vibration component 32 relative to the inner wall forming the first sound outlet channel 4111.
  • the outer wall of the sound guide pipe 43 corresponding to the second sound outlet channel 4112 can also be recessed in a direction close to the second vibration component 32 to form a first avoidance channel 44 connected to the first break 4121 between the two.
  • a sound-conducting tube 43 is provided between the sound-emitting portion 411 and the second vibration component 32, that is, a sound-conducting tube 43 is provided between the sound-emitting device 100 and the module shell.
  • a sealing foam 45 is provided on the surface of the sound guide pipe 43 away from the second vibration component 32, thereby improving the sealing between the sound guide pipe 43 and external devices and improving the sound quality of the sound module 400. It can be understood that the sealing foam 45 is annular and has a first avoidance groove 451 connected to the second sound outlet channel 4112.
  • the side of the sound-conducting tube 43 away from the second vibration component 32 is an inclined surface, that is, there is an angle between the inclined surface and the mounting surface of the second vibration component 32.
  • the inclined surface of the sound-conducting tube 43 can also be tightened by force, thereby improving the operability of the sound-generating device 100 during assembly.
  • the distance between the end of the inclined surface close to the first vibration component 31 and the second vibration component 32 is smaller than the distance between the end of the inclined surface away from the first vibration component 31 and the second vibration component 32.
  • the module housing includes a module upper housing 42 and a module lower housing 41.
  • the module lower housing 41 and the module upper housing 42 are connected and enclosed to form a receiving space.
  • the module lower housing 41 is provided with a support wall 412 and a sound outlet 411.
  • a rear sound cavity is formed between the module lower housing 41, the sound device 100, the module upper housing 42, and the module lower housing 41.
  • the module upper housing 42 and the module lower housing 41 can be fixed by bonding, welding, etc., which is not limited here.
  • the present application also provides an electronic device, the electronic device includes a device housing and a sound device 100 of the present application.
  • the sound device 100 has a crossover point F1.
  • the Fh front cavity resonance frequency
  • the F1 front cavity resonance frequency
  • the phase mutation of the sound waves of the first vibration component 31 and the second vibration component 32 at the crossover point F1 can be avoided, ensuring that the vibration phases of the first vibration component 31 and the second vibration component 32 at the crossover point F1 are consistent, and the sound pressure of the sound device 100 is stable.
  • F1 is greater than or equal to 6kHz, so that the sound pressure level curve of the sound-generating device 100100 formed by combining the first vibration component 31 and the second vibration component 32 is relatively smooth, does not produce a large trough, and has a natural listening experience.
  • the crossover frequency F1 is greater than or equal to 6kHz and less than or equal to 10kHz, and the crossover frequency F1 can be 6kHz, 6.5KHz, 7kHz, 7.5kHz, 8kHz, 8.5kHz, 9kHz, 9.5kHz, 10kHz, etc.
  • the sound pressure levels of the first vibration component 31 and the second vibration component 32 can be better connected at the crossover frequency, and the sound quality is richer and more natural.
  • the bass of the sound device 100 in this embodiment is deep and powerful, and the high Since the electronic device adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

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  • Acoustics & Sound (AREA)
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Abstract

本发明公开一种发声器件和电子设备，发声器件包括磁路系统及振动系统，磁路系统包括轭板、第一磁路部分和第二磁路部分，第一磁路部分具有第一磁间隙，第二磁路部分设于部分第一磁路部分的周侧，振动系统包括振动方向垂直的第一振动组件和第二振动组件，第一振动组件包括第一振膜和第一音圈，第一音圈设于第一磁间隙内，第二振动组件包括第二振膜和第二音圈，第二音圈为扁平音圈且中心轴线垂直于第二振膜，第二音圈至少具有相对设置的第一导线段和第二导线段，且二者的电流方向相反，第二磁路部分的磁感线至少部分沿第一振动组件的振动方向穿过第一导线段和第二导线段，且穿过第一导线段和第二导线段的磁感线的方向相反。

Description

发声器件和电子设备 技术领域
本发明涉及电声转换技术领域，特别涉及一种发声器件和应用该发声器件的电子设备。
背景技术
随着便携式消费类电子产品市场的发展，微型发声器件得到广泛的应用，并且随着便携式终端电子产品的多功能和小型化设计，对微型发声器的振动声学性能提出了更高的要求。目前智能移动终端中微型扬声器模组的有效频带较窄，音色比较单调，音质较差，且不能满足多方面的功能需求。
发明内容
本发明的主要目的是提供一种发声器件和电子设备，旨在提供一种振动辐射面相互独立且呈夹角设置的发声器件，该发声器件不仅实现了多功能的应用，还有效提高发声效果，且降低了制作成本。
为实现上述目的，本发明提出一种发声器件，所述发声器件包括外壳以及与所述外壳连接的磁路系统和振动系统，
所述磁路系统包括轭板、第一磁路部分和第二磁路部分，所述第一磁路部分设于所述轭板，所述第一磁路部分包括中心磁路和边磁路，所述边磁路设于所述中心磁路的外侧，并与所述中心磁路间隔以形成第一磁间隙，所述第二磁路部分设于部分所述边磁路远离所述中心磁路的一侧，
所述振动系统包括振动方向呈垂直设置的第一振动组件和第二振动组件，
所述第一振动组件与所述第一磁路部分相对，所述第一振动组件包括第一振膜和第一音圈，所述第一音圈的一端与第一振膜连接，另一端悬设于所述第一磁间隙内；
所述第二振动组件与所述第二磁路部分相对，所述第二振动组件包括第二振膜和第二音圈，所述第二音圈为扁平音圈且中心轴线垂直于所述第二振 膜，沿所述第二振动组件的振动方向所述第二音圈与所述第二磁路部分间隔设置，所述第二音圈至少具有相对设置的第一导线段和第二导线段，所述第一导线段和所述第二导线段内的电流方向相反，所述第二磁路部分的磁感线至少部分或者至少部分的分量沿所述第一振动组件的振动方向穿过所述第一导线段和所述第二导线段，且穿过所述第一导线段和所述第二导线段的磁感线的方向相反，其中，
所述第二磁路部分远离所述第二音圈的一侧还设有金属板，所述金属板包括承载所述第二磁路部分的承载部以及与所述外壳连接的固定部。
在一实施例中，所述第二磁路部分包括至少三个磁区，所述三个磁区包括中间的第一磁区以及两侧的第二磁区，所述三个磁区的排布方向平行于所述第一振动组件的振动方向。
在一实施例中，所述三个磁区均沿所述第二振动组件的振动方向充磁，所述第一磁区和所述第二磁区的充磁方向相反；
或者，所述第一磁区沿所述第二振动组件的振动方向充磁，所述第二磁区的充磁方向垂直于所述第一磁区的充磁方向，且所述第二磁区靠近所述第一磁区的一侧的磁极与所述第一磁区靠近所述第二音圈的一侧的磁极相同。
在一实施例中，所述第二磁路部分包括一个条形磁铁，所述三个磁区为所述条形磁铁的三部分充磁区域；
或者，所述第二磁路部分包括三个相互独立的条形磁铁，所述三个条形磁铁的排布方向平行于所述第一振动组件的振动方向，三个所述条形磁铁对应形成所述三个磁区；
或者，所述第二磁路部分包括一个环形磁铁和一个条形磁铁，所述环形磁铁的中心轴线平行于所述第二音圈的中心轴线，所述条形磁铁设于所述环形磁铁的中心，所述条形磁铁形成所述第一磁区，所述环形磁铁的相对的两条边形成所述第二磁区。
在一实施例中，所述边磁路包括第一边磁路和第二边磁路，所述第一边磁路位于所述中心磁路的外侧，并间隔形成第一子间隙，所述第二边磁路位于所述中心磁路的外侧，并间隔形成第二子间隙，所述第一子间隙与所述第二子间隙连通，以形成所述第一磁间隙，所述第二磁路部分位于所述第二边磁路远离所述中心磁路的一侧。
在一实施例中，沿所述第二振动组件的振动方向，0.5*与所述第二边磁路相对的所述第一边磁路的尺寸*所述第二边磁路的尺寸≤与所述第二边磁路相对的所述第一边磁路的尺寸；
且/或，沿所述第二振动组件的振动方向，所述第二磁路部分的尺寸≤0.5*所述第二边磁路的尺寸；
且/或，所述轭板为平板状，所述轭板远离所述第一振动组件的外表面与所述外壳的外表面齐平。
在一实施例中，所述固定部由所述承载部的边沿朝所述第二音圈所在侧弯折延伸，且所述固定部嵌于所述外壳内；
且/或，所述第二磁路部分靠近所述第一振膜的一侧设有避让所述第一振膜的折环的缺角，所述金属板具有与所述缺角对应的弯折部。
在一实施例中，所述第一导线段和所述第二导线段为所述第二音圈的长轴段，所述第一导线段和所述第二导线段的排布方向平行于所述第一振动组件的振动方向；
且/或，所述第二振膜为平面振膜，或者，所述第二振膜包括第二折环和设于所述第二折环中心的第二补强部；
且/或，所述第二音圈由漆包线绕制形成，或者，所述第二音圈包括电路板及布设于所述电路板上的导电线路形成的线圈结构；
且/或，所述第二振膜为平面振膜，所述平面振膜的材质为PEN、LCP、PEEK、碳纸、镁锂合金中的任意一种；
且/或，所述第二振膜为平面振膜，所述第二振膜的中心区域设有补强部。
在一实施例中，所述外壳包括呈夹角设置的第一壳体和第二壳体，所述第一壳体和所述第二壳体围合形成安装腔，所述磁路系统设于所述安装腔内，所述第一振膜与所述第一壳体连接，所述第二振膜与所述第二壳体连接，
所述第一振动组件还包括第一定心支片，所述第一定心支片的一端与所述第一壳体连接，所述第一定心支片的另一端与所述第一音圈远离所述第一振膜的一端连接。
在一实施例中，所述第一振动组件用于低音发声，所述第二振动组件用于高音发声；
且/或，所述磁路系统沿所述第一振膜的振动方向的尺寸小于所述磁路系 统沿所述第二振膜的振动方向的尺寸。
本发明还提出一种电子设备，包括设备壳体和上述所述的发声器件，所述发声器件设于所述设备壳体。
本发明技术方案的发声器件通过将振动系统设置有第一振动组件和第二振动组件，使得第一振动组件与磁路系统相对，第二振动组件与磁路系统相对，如此利用磁路系统同时为第一振动组件和第二振动组件提供磁场和驱动力，以提高磁场利用率的同时，降低成本和尺寸，进一步将第一振动组件的振动方向与第二振动组件的振动方向设置为呈夹角设置，如此可使得振动系统形成两个相互独立且呈夹角设置的振动辐射面，不仅实现了多功能的应用，还有效提高了发声效果。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术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示出的结构获得其他的附图。
图1为本发明一实施例中发声器件的结构示意图；
图2为本发明一实施例中发声器件另一视角的结构示意图；
图3为本发明一实施例中发声器件的分解示意图；
图4为本发明一实施例中发声器件的剖面示意图；
图5为本发明一实施例中发声器件的部分结构的剖面示意图；
图6为本发明一实施例中发声器件的部分结构的分离示意图；
图7为本发明一实施例中发声器件的部分结构的分离示意图；
图8为本发明一实施例中发声器件的部分结构的分离示意图；
图9为本发明一实施例中发声器件的部分结构的剖面示意图；
图10为本发明一实施例中发声器件的部分结构的剖面示意图；
图11为本发明一实施例中发声器件的部分结构的剖面示意图；
图12为本发明一实施例中发声器件的部分结构的剖面示意图；
图13为图12中D处的放大示意图；
图14为本发明一实施例中外壳的结构示意图；
图15为本发明一实施例中发声器件另一视角的结构示意图；
图16为本发明一实施例中发声模组的去掉部分模组壳体的立体示意图；
图17为本发明一实施例中一实施例中发声模组的分解示意图；
图18为本发明一实施例中发声模组的模组下壳的结构示意图；
图19为本发明一实施例中发声模组的平面示意图；
图20为沿图19中B-B线的剖面示意图；
图21为沿图19中A-A线的剖面示意图。
附图标号说明：

本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
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作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
需要说明，本发明实施例中所有方向性指示(诸如上、下、左、右、前、后……)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、运动情况等，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。
同时，全文中出现的“和/或”或“且/或”的含义为，包括三个方案，以“A和/或B”为例，包括A方案，或B方案，或A和B同时满足的方案。
另外，在本发明中如涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本发明要求的保护范围之内。
随着便携式消费类电子产品市场的发展，微型发声器件得到广泛的应用，并且随着便携式终端电子产品的多功能和小型化设计，对微型发声器的振动声学性能提出了更高的要求。目前智能移动终端中微型扬声器模组的有效频带较窄，音色比较单调，音质较差，且不能满足多方面的功能需求。
基于上述构思和问题，本发明提出一种发声器件100。可以理解的，发声器件100应用于电子设备，电子设备可以是手机、音响、电脑、耳机、手表或电视或者发声器件100应用于扬声器模组等，在此不做限定。
请结合参照图1至图21所示，在本发明实施例中，该发声器件100包括磁路系统2及振动系统3，振动系统3包括第一振动组件31和第二振动组件32，第一振动组件31与磁路系统2相对，第二振动组件32与磁路系统2相对，第一振动组件31的振动方向与第二振动组件32的振动方向呈夹角设置。
本发明的发声器件100通过将振动系统3设置有第一振动组件31和第二振动组件32，使得第一振动组件31与磁路系统2相对，第二振动组件32与磁路系统2相对，如此利用磁路系统2同时为第一振动组件31和第二振动组件32提供磁场和驱动力，以提高磁场利用率的同时，降低成本，进一步将第一振动组件31的振动方向与第二振动组件32的振动方向设置为呈夹角设置，如此可使得振动系统3形成两个相互独立且呈夹角设置的振动辐射面，不仅实现了多功能的应用，还有效提高了发声效果。可选地，第一振动组件31和第二振动组件32的振动方向呈垂直设置。
在一实施例中，发声器件100还包括外壳1，外壳1包括呈夹角设置的第一壳体12和第二壳体13，第一壳体12和第二壳体13围合形成安装腔，磁路系统2设于安装腔内，第一振动组件31连接于第一壳体12，并与磁路系统2相对，第二振动组件32连接于第二壳体13，并与磁路系统2相对，第一振动组件31的振动方向与第二振动组件32的振动方向呈夹角设置。可选地，第一壳体12和第二壳体13为一体成型结构，如此提高外壳1的结构强度和稳定性。可以理解的，第一壳体12和第二壳体13围合形成安装腔，安装腔可以是通腔或通槽结构。可选地，第一壳体12和第二壳体13呈垂直设置。
在本实施例中，第一壳体12呈长方形结构，第一壳体12具有相对的两个长边和两个短边，短边的两端分别与两个长边连接，长边的两端分别与两个短边连接。可以理解的，第二壳体13连接于第一壳体12的长边或短边，使得第二壳体13与第一壳体12呈垂直设置。
可以理解的，第二壳体13可选为长方形结构，第二壳体13具有相对的两个长边和两个短边，短边的两端分别与两个长边连接，长边的两端分别与两个短边连接。在本实施例中，第一壳体12和第二壳体13共用一个长边或短边，即第一壳体12和第二壳体13具有共用的共用边14。第一壳体12的两个长边和两个短边限定出第一开口，第二壳体13的两个长边和两个短边限定出第二开口，第一开口和第二开口分别连通安装腔。可选地，第一开口和第 二开口位于外壳1的相邻两个表面。
需要说明的是，外壳1是金属件时，磁路系统2与外壳1采用粘接或焊接固定。在另外的实施例中，外壳1为塑料注塑成型时，磁路系统2的边导磁板235先作为嵌件注塑在外壳1中，或者磁路系统2与外壳1采用粘接固定，然后其他部分再粘接固定，在此不做限定。
在本实施例中，磁路系统2设于外壳1的安装腔内，并与外壳1的第一壳体12和第二壳体13连接。振动系统3连接于外壳1的第一壳体12和第二壳体13，并与磁路系统2相对。可以理解的，振动系统3的第一振动组件31与第一壳体12连接，并盖合第一开口，第二振动组件32与第二壳体13连接，并盖合第二开口，如此外壳1的第一壳体12和第二壳体13、第一振动组件31和第二振动组件32及磁路系统2共同围合形成振动空间。
可以理解的，在本实施例中，磁路系统2为第一振动组件31和第二振动组件32提供磁场和驱动力，使得第一振动组件31和第二振动组件32共用磁路系统2，从而提高磁场利用率的同时，降低发声器件100的成本。在本实施例中，第一振动组件31的振动方向与第二振动组件32的振动方向呈垂直设置。
本发明的发声器件100通过将外壳1设置为呈夹角设置的第一壳体12和第二壳体13，并围合形成安装腔，从而利用安装腔安装固定磁路系统2和振动系统3，简化发声器件100的设计及组装工序，便于生产。
在一实施例中，磁路系统2沿第一振动组件31的振动方向的尺寸小于其沿第二振动组件32的振动方向的尺寸，如此可以减小发声器件100的尺寸，便于发声器件100的微型化设计。
在一实施例中，磁路系统2包括轭板21、第一磁路部分22和第二磁路部分23，第一磁路部分22设于轭板21，第一磁路部分22具有第一磁间隙221，第二磁路部分23设于部分第一磁路部分22的周侧，第二磁路部分23驱动第二振动组件32振动。第二磁路部分23设于部分第一磁路部分22的周侧，并与第二振动系统3相对，从而对发声器件100的厚度(Z轴)方向的占用，利于发声器件100的扁平化，利于电子设备的薄型化。
进一步地，第一磁路部分22包括中心磁路222和边磁路223，边磁路223设于中心磁路222的外侧，并与中心磁路222间隔以形成第一磁间隙221；第 一振动组件31与第一磁路部分22相对，第一振动组件31包括第一振膜311和第一音圈312，第一音圈312的一端与第一振膜311连接，另一端悬设于第一磁间隙221内。可以理解地，第一磁间隙221环绕中心磁路222，第一音圈312环绕中心磁路222设置。
进一步地，第二磁路部分23设于部分边磁路223远离中心磁路222的一侧，第二振动组件32与第二磁路部分23相对，第二振动组件32包括第二振膜321和第二音圈323，第二音圈323为扁平音圈且中心轴线垂直于第二振膜321，沿第二振动组件32的振动方向第二音圈323与第二磁路部分23间隔设置，第二音圈323至少具有相对设置的第一导线段3231和第二导线段3232，第一导线段3231和第二导线段3232内的电流方向相反，第二磁路部分23的磁感线至少部分或者至少部分的分量沿第一振动组件31的振动方向穿过第一导线段3231和第二导线段3232，且穿过第一导线段3231和第二导线段3232的磁感线的方向相反。
在本实施例中，磁路系统2的轭板21为第一磁路部分22提供安装固定基础，第一磁路部分22可采用粘结方式连接固定于轭板21上。通过在第一磁路部分22设置第一磁间隙221，从而利用第一磁间隙221为第一音圈提供避让和振动空间。通过将第二磁路部分23设于部分边磁路223远离中心磁路222的一侧并将第二音圈323设为扁平音圈且中心轴线垂直于第二振膜321，第二磁路部分23的磁感线至少部分或者至少部分的分量沿所述第一振动组件31的振动方向穿过所述第一导线段3231和所述第二导线段3232，从而利用第二磁路部分23为第二音圈323提供驱动力和振动空间的同时，使得整个磁路系统2的结构更为紧凑，减小磁路系统2的尺寸。
一实施例中，第二磁路部分23包括至少三个磁区，三个磁区包括中间的第一磁区231以及两侧的第二磁区232，三个磁区的排布方向平行于第一振动组件31的振动方向。如此，可以提升磁路系统2的利用率，提升第二磁路部分23的BL值，提升第二振动组件32的发声性能。
如图9所示，三个磁区均沿第二振动组件32的振动方向充磁，第一磁区231和第二磁区232的充磁方向相反；或者，如图10所示，第一磁区231沿第二振动组件32的振动方向充磁，第二磁区232的充磁方向垂直于第一磁区231的充磁方向，且第二磁区232靠近第一磁区231的一侧的磁极与第一磁区 231靠近第二音圈323的一侧的磁极相同。如此可以使得第一导线段3231和第二导线段3232做同一个方向的切割磁感线的振动，进而带动第二振膜321振动发声。
可选地，如图6至图8所示，第二磁路部分23包括一个条形磁铁233，三个磁区为条形磁铁233的三部分充磁区域；或者，第二磁路部分23包括三个相互独立的条形磁铁233，三个条形磁铁233的排布方向平行于第一振动组件31的振动方向，三个条形磁铁233对应形成三个磁区；或者，第二磁路部分23包括一个环形磁铁234和一个条形磁铁233，环形磁铁234的中心轴线平行于第二音圈323的中心轴线，条形磁铁233设于环形磁铁234的中心，条形磁铁233形成第一磁区231，环形磁铁234的相对的两条边形成第二磁区232。可以理解地，条形磁铁233结构简单，便于加工，环形磁铁234的结构强度强，提升其结构可靠性。本发声器件100的第二磁路部分23可以有不同的设置方式，使用过程中可灵活选择。
一实施例中，如图4所示，第二磁路部分23设于轭板21，且与第一磁路部分22设于轭板21的同侧。本实施例中，轭板21为第一磁路部分22和第二磁路部分23提供安装固定基础，第一磁路部分22和第二磁路部分23设置于轭板21面向外壳1的一侧，磁路系统2通过第一磁路部分22和第二磁路部分23与外壳1的第一壳体12和第二壳体13连接。
可以理解的，第一磁路部分22和第二磁路部分23可采用粘结或者方式连接固定于轭板21上，在此不做限定。
一实施例中，如图5所示，第二磁路部分23远离第二音圈323的一侧还设有导磁板235。可以进一步提升第二磁路部分23的BL值，提升对第二音圈323的驱动力。
一实施例中，轭板21为平板状，使得发声器件100的外形更为规整，增强发声器件100的用于不同安装环境的适配性。优选地，轭板21远离第一振动组件31的外表面和外壳1的外表面齐平设置。
一实施例中，如图5所示，沿第一振动组件31的振动方向，第二磁路部分23的尺寸大于第一磁路部分22的尺寸。可充分利用发声器件100沿第一振动组件31的振动方向的高度尺寸设置第二磁路部分23，提升第二磁路部分23的磁区的尺寸，提升对第二音圈323的驱动力。
在一实施例中，边磁路223包括第一边磁路223和第二边磁路223，第一边磁路223位于中心磁路222的外侧，并间隔形成第一子间隙2211，第二边磁路223位于中心磁路222的外侧，并间隔形成第二子间隙2212，第一子间隙2211与第二子间隙2212连通，以形成第一磁间隙221，第二磁路部分23位于第二边磁路2232远离中心磁路222的一侧。
可以理解地，边磁路223包括多个，多个边磁路223环绕中心磁路222设置，并与中心磁路222间隔以形成第一磁间隙221，多个边磁路223包括第一边磁路2231和第二边磁路2232。例如，边磁路223包括四个，一个为第二边磁路2232，三个为第一边磁路2231。可以理解的，三个第一边磁路2231间隔设于中心磁路222的外侧，并与中心磁路222间隔形成第一子间隙2211，第二边磁路2232位于第一共用磁路背向中心磁路222的一侧，并间隔形成第二子间隙2212，且第一子间隙2211与第二子间隙2212连通，以形成第一磁间隙221。
本实施例中，仅利用第二边磁路2232远离中心磁路222的一侧设置第二磁路部分23，在满足磁路性能的基础上进一步减小发声器件100沿第二音圈323的轴向方向的尺寸，利于发声器件100的微型化发展。
进一步地，如图5所示，沿第二音圈323的振动方向，第二边磁路2232的尺寸小于等于与第二边磁路2232相对的第一边磁路2231的尺寸且大于等于与第二边磁路2232相对的第一边磁路2231的尺寸的一半。如此，可以为第二磁路部分23让位出安装空间，不过多增大磁路系统2沿第二音圈323的振动方向的尺寸，利用发声器件100的微型化设计。
可选地，沿第二音圈323的轴向方向，即沿第二振动组件32的振动方向，第二磁路部分23的尺寸小于等于第二边磁路2232的尺寸的一半。如此，既能提供给第二音圈323足够的驱动力，且不额外增加发声器件100的尺寸。
可选地，如图11所示，第二磁路部分23远离第二音圈323的一侧还设有金属板236，金属板236包括承载第二磁路部分23的承载部2361以及与外壳1连接的固定部2362。通过金属板236进一步与外壳1连接且承载第二磁路部分23，增强第二磁路部分23和外壳1的连接强度，提升第二磁路部分23的安装可靠性。可选地，金属板236为不锈钢等材质。可选地，固定部2362由承载部2361的边沿朝第二音圈323所在侧弯折延伸，且固定部2362嵌于 外壳1内。
一实施例中，第一振膜311的折环朝向磁路系统2凹陷，第二磁路部分23靠近第一振膜311的一侧设有避让第一振膜311的折环的缺角(图中未标示)。可以理解地，本实施例中，第二磁路部分23充分利用发声器件100的高度空间以满足第二磁路部分23最大化的同时，避免和第一振动组件31的相互干涉，提升发声器件100的音质效果及工作可靠性。
一实施例中，如图3、图6至图8所示，第一导线段3231和第二导线段3232为第二音圈323的长轴段，第一导线段3231和第二导线段3232的排布方向平行于第一振动组件31的振动方向。第二音圈323的两个长轴段沿第一振动组件31的振动方向排布，可以最优化发声器件100的结构设计，且减小发声器件100的高度尺寸，利于发声器件100的薄型化。
如图3和图4所示，轭板21为平板状，轭板21设有凹陷部211，第二磁路部分23设于凹陷部211。轭板21为平板状使得发声器件100的外形更为规整，增强发声器件100的适配性。轭铁可进一步设置容纳第二磁路部分23的凹陷部211，利用凹陷部211的高度补偿第二磁力部分的厚度，提升第二磁路部分23对第二音圈323的驱动力。
一实施例中，第二振膜321为平面振膜，平面振膜的制作工艺简单，降低生产成本。可选地，平面振膜的材质为PEN、LCP、PEEK、碳纸、镁锂合金中的任意一种，上述材料的刚性大且密度小，制成的平面振膜质量轻，提升平面振膜的发声性能。进一步可选地，平面振膜的中心区域设有补强部，可进一步提升平面振膜的刚度，提升其发声性能，补强部的材质为PEN、LCP、PEEK、碳纸、镁锂合金中的任意一种。根据需要灵活选择。
亦可选地，第二振膜321包括第二折环和设于第二折环中心的第二补强部322，如此，在第二补强部322的材质和厚度确定之后，可以进一步调整第二折环的宽度或材质来调整共振频率以满足使用需求。
如图3和图4所示，本申请发声装置的第一振膜311包括第一折环和第一补强部314，第一补强部314连接于第一折环的中心区域。可以通过调整第一折环的宽度或材质来调整第一振膜311的共振频率以满足使用需求。进一步地，第一音圈312为环形音圈，第一音圈312环绕中心磁路222设置。
一实施例中，第二音圈323的内径的长宽比≤20，以降低第二音圈323 的工艺绕制难度。可选地，第二音圈323包括多个，每个第二音圈323的内径的长宽比均小于等于20，第二音圈323沿第一导线段3231的延伸方向分布。可以理解的，在发声装置的外形沿第一导线段3231的延伸方向的尺寸比较长时，第二音圈323设置为多个，相应的，第二磁路部分23的条形磁铁233或者环形磁铁234也对应设置为多个，可以降低条形磁铁233或者环形磁铁234的断裂率，提升其结构可靠性。
一实施例中，第二音圈323由漆包线绕制形成，或者，第二音圈323包括电路板及布设于电路板上的导电线路形成的线圈结构。相比于常规环形音圈，扁平音圈的轴向尺寸更小，可以进一步减小占用发声器件100沿第二振动组件32的振动方向的空间。
一实施例中，轭板21设有泄气孔212，泄气孔212连通第一磁间隙221，发声器件100还包括对应泄气孔212设置的隔离网。可以确保发声器件100内振动空间的气压平衡，以保证第一振动组件31和第二振动组件32的振动平衡性。隔离网覆盖泄气孔212可以避免杂质或吸音颗粒等从泄气孔212进入发声器件100内，影响发声器件100的性能。
一实施例中，第一振动组件31还包括定心支片313，定心支片313的一端与第一壳体12连接，定心支片313的另一端与第一音圈312远离第一振膜311的一端连接。利用定心支片313平衡和稳定第一音圈312的振动，避免第一音圈312发生摆动或偏振现象。
可选地，定心支片313包括四个，四个定心支片313对应磁路系统2的第一磁路部分22的四个缺口设置。或者，如图3所示，定心支片313包括两个，两个定心支片313设置于第一音圈312的短轴两侧。在本实施例中，定心支片313包括外固定部2362、内固定部2362以及连接于外固定部2362和内固定部2362之间的弹性部，外固定部2362连接于外壳1的第一壳体12，内固定部2362连接于第一音圈312。
定心支片313可采用PI材质制成，或者，定心支片313可采用FPCB制成，或者定心支片313内设置有导电电路，如此可利用定心支片313的一端与第一音圈312的引线导电连接，定心支片313的另一端固定在外壳1上，用于与外部电路连接导通，如此利用定心支片313将外部电路与第一音圈312连接导通，有效避免第一音圈312的引线在振动过程中发生断线风险。
一实施例中，如图3、图6、图14至图15所示，定心支片313的外端与第一壳体12背离第一振膜311的表面连接，定心支片313的内端与第一音圈312远离第一振膜311的一端连接，内端具有与第一音圈312的引线电连接的第一内焊盘，外端具有与外部电路电连接的第一外焊盘3132；外壳1设有导电嵌件15，导电嵌件15具有与第二音圈323电连接的第二内焊盘151以及与外部电路电连接的第二外焊盘152，第二内焊盘151外露于第二壳体13朝向第二振膜321的表面，第二外焊盘152外露于第一壳体12背离第一振膜311的表面，进一步地，第一外焊盘3132、第二外焊盘152位于第一壳体12的同一侧边上。本实施例中，第一外焊盘3132、第二外焊盘152位于第一壳体12的同一侧边上，在第一外焊盘3132和第二外焊盘152与外部电连接件(例如柔性线路板)进行电连接时，可以简化外部电连接件的设计，易于实现。
本实施例中，如图6和图14所示，第二壳体13与第二振膜321连接的表面设有引线槽132，第二音圈323的引线经引线槽132引出后与第二内焊盘151连接。如此，第二音圈323的引线经引线槽132引出，可保持第二壳体13与第二振膜321的粘接的表面的平整性，提升二者的结合强度，同时提升第二振膜321的防水性能。
如图14和图15所示，第一壳体12和第二壳体13具有共用边14，导电嵌件15包括两个，其中一导电嵌件15设于共用边14且两端分别形成外露于第一壳体12的第二外焊盘152和外露于第二壳体13的第二内焊盘151，另一导电嵌件15的一端设于共用边14并形成外露于第二壳体13的第二内焊盘151，另一端沿第一壳体12的边缘延伸至第一外焊盘3132所在侧边。导电嵌件15嵌设于外壳1，可提升其安装可靠性。
可选地，第二壳体13包括交替连接的两个长边和两个短边，第二内焊盘151包括两个且沿一长边的延伸方向位于第二壳体13的两端，第二振膜321沿长边的延伸方向的外边缘位于两个第二内焊盘151的内侧。即，将两个第二内焊盘151对称设置于第二振膜321的长边的两端，在发声器件100的外壳1尺寸比较小的情况下，简化第一焊盘的设计，便于工艺实现。进一步地，第二壳体13与第二振膜321连接的表面设有引线槽132，第二音圈323的引线经引线槽132引出后与第二内焊盘151连接，第二振膜321覆盖引线槽132。
为提高本发明发声器件100的防水性能，第一振膜311的外边缘和第二 振膜321的外边缘至少部分相叠设。具体地，如图3和图4、图12和图13所示，第一壳体12和第二壳体13具有共用边14，第一振膜311和第二振膜321均与共用边14连接，第一振膜311靠近第二振膜321一侧的外边缘与第二振膜321靠近第一振膜311一侧的外边缘至少部分相叠设。
在一实施例中，第二振膜321的外边缘具有与第二壳体13连接的第二翻边3211，与共用边14相对的第二翻边3211至少部分与第一振膜311的外边缘相叠设。设置第二翻边3211可增大第二振膜321和第二壳体13的粘接面积，提高第二振膜321的防水性能。
可选地，共用边14对应第二翻边3211设有第二沉台141，如此可以减小共用边14的壳体壁的厚度，在第一振膜311和第二振膜321均与共用边14粘接时，发声器件100的外表面更为平整。
可选地，第一振膜311靠近第二振膜321一侧的外边缘设于共用边14和第二翻边3211之间，如此，外部液体进入发声器件100内部时，需要经过第二翻边3211和第一振膜311的结合区域以及第一振膜311或第二振膜321与共用边14的结合区域，进入发声器件100的路径得到延长，进入发声器件100内部的风险得以降低。
可选地，第二振膜321的两个长边的外边缘设有第二翻边3211，共用边14与第二振膜321的长边相对。第二振膜321的长边设有第二翻边3211与第一振膜311的外边缘结合，可以进一步提高发声器件100的防水性能。
在另一实施例中，第一振膜311的外边缘具有与第一壳体12连接的第一翻边(图中未示出)，与共用边14相对的第一翻边至少部分与第二振膜321的外边缘相叠设。设置第一翻边可增大第一振膜311和第一壳体12的粘接面积，提高第一振膜311的防水性能。
可选地，共用边14对应第一翻边设有第一沉台(图中未示出)，如此可以减小共用边14的壳体壁的厚度，在第一振膜311和第二振膜321均与共用边14粘接时，发声器件100的外表面更为平整。
可选地，第二振膜321靠近第一振膜311一侧的外边缘设于共用边14和第一翻边之间。如此，外部液体进入发声器件100内部时，需要经过第一翻边和第二振膜321的结合区域以及第一振膜311或第二振膜321与共用边14的结合区域，进入发声器件100的路径得到延长，进入发声器件100内部的 风险得以降低。
在又一实施例中，第二振膜321的外边缘具有与第二壳体13连接的第二翻边3211，且第一振膜311的外边缘具有与第一壳体12连接的第一翻边，第一翻边和第二翻边3211均与共用边14连接。设置第二翻边3211可增大第二振膜321和第二壳体13的粘接面积，设置第一翻边可增大第一振膜311和第一壳体12的粘接面积，提高第一振膜311的防水性能。
可选地，与共用边14相对的第一翻边设于共用边14和第二振膜321之间，可延长外部液体由第一振膜311与共用边14的粘接区域进入发声器件100内部的路径。或者，与共用边14相对的第二翻边3211设于第一振膜311和共用边14之间，可延长外部液体由第二振膜321与共用边14的粘接区域进入发声器件100内部的路径。在此不作限制，根据组装情况灵活选择。
可选地，共用边14设有与第一翻边相对应的第一沉台，或者，共用边14设有与第二翻边3211相对应的第二沉台141，或者共用边14设有与第一翻边相对应的第一沉台和与第二翻边3211相对应的第二沉台141。可以减小共用边14的壳体壁的厚度，在第一振膜311和第二振膜321均与共用边14粘接时，发声器件100的外表面更为平整。
在本发声器件100中，第一振膜311的振动方向与第二振膜321的振动方向呈垂直设置，如此便于第一音圈312和第二音圈323的安装，使得磁力系统更为规整，利于生产。
在本发声器件100中，发声器件100沿第一振膜311的振动方向的尺寸小于发声器件100沿第二振膜321的振动方向的尺寸。如此，发声器件100呈扁平状结构，在适配于应用端时，便于应用端的薄型化设计，提升用户使用体验。
在本发明发声器件100中，第一振动组件31用于低音发声，第二振动组件32用于高音发声，如此，可以拓展发声器件100的频宽，使得发声器件100的音色更饱满、圆润。
如图16至图21所示，本发明还提供一种发声模组400，该发声模组400包括上述的发声器件100和模组壳体，其中，模组壳体具有收容空间，发声单体收容于收容空间内，模组壳体具有支撑壁412以及与支撑壁412连接的出声部411，发声器件100设有第一振动组件31的一侧连接于支撑壁412， 发声器件100设有第二振动组件32的一侧连接于出声部411，出声部411将第一振动组件31的声波和第二振动组件32的声波传递至外界。
在本实施例中，如图20至图21所示，发声器件100设于收容空间内并与模组壳体之间形成后声腔(图中未标示)，可进一步利用后声腔灌装吸音颗粒，从而有效提高发声模组400的低频性能和声学性能。
在本实施例中，通过在发声器件100上设置第一振动组件31和第二振动组件32，使得第一振动组件31的振动方向与第二振动组件32的振动方向呈夹角设置，通过出声部411将第一振动组件31和第二振动组件32的声波辐射至外界，拓宽了发声模组400的频带，使得发声模组400的声音更丰富、更饱满。
可选地，如图16至图21所示，出声部411位于模组壳体的周侧，出声部411与第二振动组件32相对且连通，第二振动组件32的声波经由出声部411向外辐射，第一振动组件31和模组壳体之间形成第一前腔40，支撑壁412设有第一断口4121，第一前腔40经第一断口4121与出声部411连通，第一振动组件31的声波经第一前腔40、第一断口4121、出声部411向外辐射。如此，第一振动组件31和第二振动组件32的声波均由出声部411向外界辐射，拓宽发声模组400的频带，提升其发声效果。可选地，出声部411上进一步设置防尘网，防止外界灰尘或杂质进入出声部411的内部，影响其发声效果。
作为一具体的实施方式，出声部411具有第一出声通道4111和第二出声通道4112，第一出声通道4111和第二出声通道4112相互隔离，第一出声通道4111与第二振动组件32相对且连通，第二振动组件32的声波经第一出声通道4111向外辐射；第一断口4121和第二出声通道4112相连通，第一振动组件31的声波经第一前腔40、第一断口4121、第二出声通道4112向外辐射。可以理解地，第一出声通道4111和第二出声通道4112呈中空结构，如此可通过第一出声通道4111将第二振动组件32发出的声音顺利传出，通过第二出声通道4112将第一振动组件31发出的声音顺利传出，提升发声模组400的发声效果。
在本实施方式中，第一出声通道4111和第二出声通道4112相互隔离，即第一振动组件31的声波和第二振动组件32的声波经不同的辐射路径向外辐 射，如此，第一振动组件31和第二振动组件32与模组壳体之间的空间被分隔为不同的辐射路径，可提升发声模组400的高频性能。
可选地，第二出声通道4112包括两个，两个第二出声通道4112分别设于第一出声通道4111的相对两侧，如此，可使得第一出声通道4111正对第二振动组件32，便于第二振动组件32的声波直接向外界辐射，提升发声模组400的高频性能。可以理解地，第一断口4121和第一出声通道4111相互隔离，第一断口4121被分为位于第一出声通道4111两侧的两部分，分别与一个第二出声通道4112对应连通。可选地，第二出声通道4112和第一出声通道4111呈扩口状，其远离发声器件100的一侧的口径大于其靠近发声器件100的一侧的口径。当然，在其他实施方式中，第二出声通道4112也可以是一个，在此不作限制。
可选地，出声部411和第二振动组件32之间设有导声管道43，导声管道43连接于第二振动组件32的周缘且与第一出声通道4111对应连通，第二振动组件32的声波经导声管道43和第一出声通道4111向外辐射；出声部411和导声管道43之间设有第一避让通道44，第一避让通道44与第一断口4121相对且连通，第一振动组件31的声波经第一前腔40、第一断口4121、第一避让通道44和第二出声通道4112向外辐射。可以理解的，导声管道43呈中空结构，如此可通过导声管道43将第二振动组件32发出的声音顺利传出，提升发声模组400的发声效果。可以理解的，出声部411的内壁和导声管道43的外壁相连接，第一避让通道44形成于导声管道43和出声部411之间，具体形成于出声部411的内壁和导声管道43的外壁之间。如图18所示，第一避让通道44由形成第二出声通道4112的内壁相对于形成第一出声通道4111的内壁向远离第二振动组件32的方向凹陷形成。当然，在其他实施例中，也可以将导声管道43的外壁对应第二出声通道4112的部分向靠近第二振动组件32的方向凹陷形成，以在二者之间形成与第一断口4121连通的第一避让通道44。
本实施方式中，出声部411与第二振动组件32之间设有导声管道43，即发声器件100和模组壳体之间设有导声管道43，便于在发声器件100的装配及使用过程中，仅通过更换导声管道43使得发声器件100适配于不同的装配环境，匹配不同的模组400外壳1，如此，可以解放发声器件100的外形设计。
可选地，如图17、图20和图21所示，导声管道43远离第二振动组件32的表面设有密封泡棉45，如此提升导声管道43和外部器件之间的密封性，提升发声模组400的音质效果。可以理解地，密封泡棉45为环形，密封泡棉45具有与第二出声通道4112连通的第一避让槽451。
可选地，导声管道43远离第二振动组件32的一侧为倾斜面，即倾斜面与第二振动组件32的安装面之间具有夹角。如此，便于发声器件100和模组壳体之间进行装配，在对发声器件100沿第一振动组件31的振动方向施力装配的同时，导声管道43的倾斜面也能受力紧固，提高了发声器件100在装配时的可操作性。进一步地，倾斜面靠近第一振动组件31的一端与第二振动组件32的距离小于倾斜面远离第一振动组件31的一端与第二振动组件32之间的距离。
在本发明一实施例中，模组壳体包括模组上壳42和模组下壳41，模组下壳41和模组上壳42连接并围合成收容空间，模组下壳41设有支撑壁412以及出声部411，模组下壳41，发声器件100、模组上壳42、模组下壳41之间形成后声腔。在本实施例中，如图所示，通过将模组壳体设置为模组下壳41和模组上壳42两部分结构，从而方便发声器件100的安装固定，模组上壳42和模组下壳41可以通过粘接、焊接等方式固定，在此不做限定。
本申请还提供一种电子设备，电子器件包括设备壳体和本申请的发声器件100。具体地，发声器件100具有分频点F1，发声器件100用于电子设备时，第一振动组件31对应的Fh(前腔谐振频率)大于等于4kHz小于等于7kHz，F1＞Fh。如此，可以避免在分频点F1处第一振动组件31和第二振动组件32的声波的相位突变，保证分频点F1处第一振动组件31和第二振动组件32的振动相位一致，发声器件100的声压稳定。
可选地，F1大于等于6kHz，如此第一振动组件31和第二振动组件32组合后的发声器件100100的声压级曲线比较平滑，不会产生较大的波谷，听感自然。
进一步地，分频点F1大于等于6kHz小于等于10kHz，分频点F1可以是6kHz、6.5KHz、7kHz、7.5kHz、8kHz、8.5kHz、9kHz、9.5kHz、10kHz等。如此，第一振动组件31和第二振动组件32的声压级在分频点处可以更好地衔接，音质更丰富、自然。本实施例中的发声器件100的低音深沉有力，高 音清晰丰富。由于本电子设备采用了前述所有实施例的全部技术方案，因此至少具有前述实施例的技术方案所带来的所有有益效果，在此不再一一赘述。
以上所述仅为本发明的可选实施例，并非因此限制本发明的专利范围，凡是在本发明的构思下，利用本发明说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本发明的专利保护范围内。

Claims (11)

  1. 一种发声器件，其特征在于，所述发声器件包括外壳以及与所述外壳连接的磁路系统和振动系统，
    所述磁路系统包括轭板、第一磁路部分和第二磁路部分，所述第一磁路部分设于所述轭板，所述第一磁路部分包括中心磁路和边磁路，所述边磁路设于所述中心磁路的外侧，并与所述中心磁路间隔以形成第一磁间隙，所述第二磁路部分设于部分所述边磁路远离所述中心磁路的一侧，
    所述振动系统包括振动方向呈垂直设置的第一振动组件和第二振动组件，
    所述第一振动组件与所述第一磁路部分相对，所述第一振动组件包括第一振膜和第一音圈，所述第一音圈的一端与第一振膜连接，另一端悬设于所述第一磁间隙内；
    所述第二振动组件与所述第二磁路部分相对，所述第二振动组件包括第二振膜和第二音圈，所述第二音圈为扁平音圈且中心轴线垂直于所述第二振膜，沿所述第二振动组件的振动方向所述第二音圈与所述第二磁路部分间隔设置，所述第二音圈至少具有相对设置的第一导线段和第二导线段，所述第一导线段和所述第二导线段内的电流方向相反，所述第二磁路部分的磁感线至少部分或者至少部分的分量沿所述第一振动组件的振动方向穿过所述第一导线段和所述第二导线段，且穿过所述第一导线段和所述第二导线段的磁感线的方向相反，其中，
    所述第二磁路部分远离所述第二音圈的一侧还设有金属板，所述金属板包括承载所述第二磁路部分的承载部以及与所述外壳连接的固定部。
  2. 根据权利要求1所述的发声器件，其特征在于，所述第二磁路部分包括至少三个磁区，所述三个磁区包括中间的第一磁区以及两侧的第二磁区，所述三个磁区的排布方向平行于所述第一振动组件的振动方向。
  3. 根据权利要求2所述的发声器件，其特征在于，所述三个磁区均沿所述第二振动组件的振动方向充磁，所述第一磁区和所述第二磁区的充磁方向相反；
    或者，所述第一磁区沿所述第二振动组件的振动方向充磁，所述第二磁区的充磁方向垂直于所述第一磁区的充磁方向，且所述第二磁区靠近所述第 一磁区的一侧的磁极与所述第一磁区靠近所述第二音圈的一侧的磁极相同。
  4. 根据权利要求2所述的发声器件，其特征在于，所述第二磁路部分包括一个条形磁铁，所述三个磁区为所述条形磁铁的三部分充磁区域；
    或者，所述第二磁路部分包括三个相互独立的条形磁铁，所述三个条形磁铁的排布方向平行于所述第一振动组件的振动方向，三个所述条形磁铁对应形成所述三个磁区；
    或者，所述第二磁路部分包括一个环形磁铁和一个条形磁铁，所述环形磁铁的中心轴线平行于所述第二音圈的中心轴线，所述条形磁铁设于所述环形磁铁的中心，所述条形磁铁形成所述第一磁区，所述环形磁铁的相对的两条边形成所述第二磁区。
  5. 根据权利要求1所述的发声器件，其特征在于，所述边磁路包括第一边磁路和第二边磁路，所述第一边磁路位于所述中心磁路的外侧，并间隔形成第一子间隙，所述第二边磁路位于所述中心磁路的外侧，并间隔形成第二子间隙，所述第一子间隙与所述第二子间隙连通，以形成所述第一磁间隙，所述第二磁路部分位于所述第二边磁路远离所述中心磁路的一侧。
  6. 根据权利要求5所述的发声器件，其特征在于，沿所述第二振动组件的振动方向，0.5*与所述第二边磁路相对的所述第一边磁路的尺寸*所述第二边磁路的尺寸≤与所述第二边磁路相对的所述第一边磁路的尺寸；
    且/或，沿所述第二振动组件的振动方向，所述第二磁路部分的尺寸≤0.5*所述第二边磁路的尺寸；
    且/或，所述轭板为平板状，所述轭板远离所述第一振动组件的外表面与所述外壳的外表面齐平。
  7. 根据权利要求1所述的发声器件，其特征在于，所述固定部由所述承载部的边沿朝所述第二音圈所在侧弯折延伸，且所述固定部嵌于所述外壳内；
    且/或，所述第二磁路部分靠近所述第一振膜的一侧设有避让所述第一振膜的折环的缺角，所述金属板具有与所述缺角对应的弯折部。
  8. 根据权利要求1所述的发声器件，其特征在于，所述第一导线段和所述第二导线段为所述第二音圈的长轴段，所述第一导线段和所述第二导线段的排布方向平行于所述第一振动组件的振动方向；
    且/或，所述第二振膜为平面振膜，或者，所述第二振膜包括第二折环和 设于所述第二折环中心的第二补强部；
    且/或，所述第二音圈由漆包线绕制形成，或者，所述第二音圈包括电路板及布设于所述电路板上的导电线路形成的线圈结构；
    且/或，所述第二振膜为平面振膜，所述平面振膜的材质为PEN、LCP、PEEK、碳纸、镁锂合金中的任意一种；
    且/或，所述第二振膜为平面振膜，所述第二振膜的中心区域设有补强部。
  9. 根据权利要求1所述的发声器件，其特征在于，所述外壳包括呈夹角设置的第一壳体和第二壳体，所述第一壳体和所述第二壳体围合形成安装腔，所述磁路系统设于所述安装腔内，所述第一振膜与所述第一壳体连接，所述第二振膜与所述第二壳体连接，
    所述第一振动组件还包括第一定心支片，所述第一定心支片的一端与所述第一壳体连接，所述第一定心支片的另一端与所述第一音圈远离所述第一振膜的一端连接。
  10. 根据权利要求1至9中任一项所述的发声器件，其特征在于，所述第一振动组件用于低音发声，所述第二振动组件用于高音发声；
    且/或，所述磁路系统沿所述第一振膜的振动方向的尺寸小于所述磁路系统沿所述第二振膜的振动方向的尺寸。
  11. 一种电子设备，其特征在于，包括设备壳体和如权利要求1至10中任一项所述的发声器件，所述发声器件设于所述设备壳体。
PCT/CN2024/103913 2023-11-15 2024-07-05 发声器件和电子设备 Pending WO2025102767A1 (zh)

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