WO2020181889A1 - 双面发声装置以及电子设备 - Google Patents

双面发声装置以及电子设备 Download PDF

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Publication number
WO2020181889A1
WO2020181889A1 PCT/CN2019/129722 CN2019129722W WO2020181889A1 WO 2020181889 A1 WO2020181889 A1 WO 2020181889A1 CN 2019129722 W CN2019129722 W CN 2019129722W WO 2020181889 A1 WO2020181889 A1 WO 2020181889A1
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WO
WIPO (PCT)
Prior art keywords
double
centering support
voice coil
sided
pad
Prior art date
Application number
PCT/CN2019/129722
Other languages
English (en)
French (fr)
Inventor
李�杰
王兴龙
刘华伟
Original Assignee
歌尔股份有限公司
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Filing date
Publication date
Application filed by 歌尔股份有限公司 filed Critical 歌尔股份有限公司
Publication of WO2020181889A1 publication Critical patent/WO2020181889A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; 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; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/041—Centering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/045—Mounting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H04R9/063—Loudspeakers using a plurality of acoustic drivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
    • H04R2209/041—Voice coil arrangements comprising more than one voice coil unit on the same bobbin

Definitions

  • the present invention relates to the technical field of electro-acoustic conversion, and more specifically, to a double-sided sound emitting device and electronic equipment.
  • the existing speaker unit is usually provided with only one vibration system.
  • This single speaker has the characteristics of single sounding effect and poor sound quality.
  • two vibration systems are used. The two vibration systems respond to the same electrical signal and vibrate.
  • An object of the present invention is to provide a new technical solution for a double-sided sound emitting device.
  • a double-sided sound emitting device includes: a housing; a magnetic circuit system, the magnetic circuit system is arranged in the housing, the magnetic circuit system is used to form a magnetic gap; and two vibration systems matched with the magnetic circuit system, The two vibration systems are respectively arranged on opposite sides of the housing along the vibration direction, each of the vibration systems includes a voice coil and a centering support plate, and the lead wire of the voice coil is connected to the centering piece.
  • the support pieces are connected, the centering support pieces are directly or indirectly connected to the external circuit, and avoiding spaces are formed on opposite sides of the magnetic gap. One of the centering support pieces extends into the avoiding space and is connected to the The free end of the corresponding voice coil is connected.
  • an electrical connector is provided on the housing, the electrical connector includes an inner pad and an outer pad that are connected to each other, the centering support piece is connected to the inner pad, and the The external pad is connected to the external circuit.
  • the two centering support pieces are connected to an external circuit through separate electrical connectors.
  • the two centering support pieces are connected to an external circuit through a common electrical connector.
  • the two centering support pieces are respectively a first centering support piece and a second centering support piece, and the first centering support piece is directly connected to the inner pad of the shared electrical connector
  • the second centering support piece includes a first part close to the common electrical connector and a second part opposite to the first part, the first part and the second part are respectively located in two opposite avoidance spaces Inside, the first part is directly connected to the inner pad, and the second part is connected to the first centering support through a conductive element provided on the housing, and is connected to the first centering support through the first positioning
  • the core support piece is connected to another inner pad of the common electrical connection.
  • the first centering support piece is located between the corresponding voice coil and the diaphragm, and the first centering support piece includes an inner ring, an outer ring, and a connection with the inner ring and the outer ring. Between the elastic arms, the inner ring is connected to the voice coil, and the outer ring is connected to the inner pad of the common electrical connector.
  • first part and the second part are independent of each other, and each of the first part and the second part includes an inner connecting part, an outer connecting part, and connecting with the inner connecting part and the outer connecting part.
  • the inner connecting part is connected with the voice coil, and the outer connecting part of the second part is connected with the conducting element.
  • the centering support piece extends to the outside of the housing to form an outer pad, and the outer pad is electrically connected to an external circuit.
  • the outer pad extends along the outer side wall of the housing and is bonded to the outer side wall.
  • it further includes an elastic piece, the centering support piece is connected with the elastic piece, and the elastic piece is in contact with an external circuit.
  • the double-sided sound emitting device includes two long sides and two short sides that are arranged oppositely, and a plurality of the outer pads are located on the same long side or the same short side.
  • the double-sided sound emitting device includes two long sides and two short sides that are arranged oppositely, and a plurality of the outer pads are located on the same long side or on the same short side, corresponding to one of the voice coils Two outer pads are located at one end of the side, and two outer pads corresponding to the other voice coil are located at the other end of the side.
  • the double-sided sound emitting device includes two long sides and two short sides that are arranged oppositely, and a plurality of the outer pads are located on the same long side or the same short side, corresponding to the two voice coils
  • the two outer pads of the positive electrode are located at one end of the side, and the two outer pads corresponding to the negative electrodes of the two voice coils are located at the other end of the side.
  • the two outer pads located in the middle correspond to one voice coil, and the other two outer pads correspond to the other voice coil.
  • the double-sided sound generating device includes two long sides and two short sides that are arranged oppositely, and the magnetic circuit system includes a central magnet and side magnets arranged on opposite sides of the central magnet.
  • the side magnet extends along the long side.
  • an electronic device includes the above-mentioned double-sided sound emitting device.
  • Fig. 1 is an exploded view of a double-sided sound emitting device according to an embodiment of the present disclosure.
  • Fig. 2 is a cross-sectional view along the long axis of the double-sided sound emitting device according to an embodiment of the present disclosure.
  • Fig. 3 is a cross-sectional view along a short axis of a double-sided sound emitting device according to an embodiment of the present disclosure.
  • Fig. 4 is an assembly diagram of a first centering support piece and an electrical connector according to an embodiment of the present disclosure.
  • Fig. 5 is a diagram of the positional relationship between the first centering brace and the electrical connector according to an embodiment of the present disclosure.
  • Fig. 6 is an assembly diagram of a second voice coil, a second centering support piece and an electrical connector according to an embodiment of the present disclosure.
  • Fig. 7 is an assembly diagram of a first centering support piece and an electrical connector according to a second embodiment of the present disclosure.
  • Fig. 8 is an assembly diagram of a second voice coil, a second centering support piece and an electrical connector according to a second embodiment of the present disclosure.
  • Fig. 9 is a positional relationship diagram of the second voice coil, the second centering support piece and the electrical connector according to the second embodiment of the present disclosure.
  • Fig. 10 is an assembly diagram of a first centering support piece and an electrical connector according to a third embodiment of the present disclosure.
  • Fig. 11 is a diagram of the positional relationship between the first centering brace and the electrical connector according to the third embodiment of the present disclosure.
  • Fig. 12 is an assembly diagram of a second voice coil, a second centering support piece, and an electrical connector according to a third embodiment of the present disclosure.
  • Fig. 13 is a positional relationship diagram of the second voice coil, the second centering support piece and the electrical connector according to the third embodiment of the present disclosure.
  • Fig. 14 is an assembly diagram of a second voice coil, a second centering support piece, and an electrical connector according to a fourth embodiment of the present disclosure.
  • Fig. 15 is a schematic structural diagram of a second centering brace according to a fourth embodiment of the present disclosure.
  • Fig. 16 is a schematic structural diagram of a first centering support piece according to a fifth embodiment of the present disclosure.
  • Fig. 17 is a schematic structural diagram of a second centering brace according to a fifth embodiment of the present disclosure.
  • Fig. 18 is a side view of a double-sided sound emitting device according to a sixth embodiment of the present disclosure.
  • Fig. 19 is a schematic structural diagram of an elastic sheet according to a sixth embodiment of the present disclosure.
  • a double-sided sound emitting device includes a housing 15, a magnetic circuit system and two vibration systems.
  • the magnetic circuit system is provided in the housing.
  • the magnetic circuit system is used to form a magnetic gap.
  • the magnetic circuit system can be a single magnetic circuit system, a three magnetic circuit system or a five magnetic circuit system.
  • the two vibration systems cooperate with the magnetic circuit system to produce sound by vibration.
  • the two vibration systems are respectively arranged on opposite sides of the housing 15 along the vibration direction.
  • the two vibration systems share a magnetic circuit system.
  • Each of the vibration systems includes a diaphragm, a voice coil and a centering support piece connected together.
  • the centering support piece includes a conductor.
  • the centering support piece includes a circuit layer and an insulating layer covering the circuit layer.
  • the circuit layer is made of conductors.
  • the centering support piece is a PCB board.
  • the PCB includes a circuit layout and an insulating layer covering the circuit layout.
  • the centering support piece includes a supporting part and a wire arranged on the supporting part.
  • the supporting part plays a supporting role, and the wire plays a conductive role.
  • the wire is enameled wire.
  • the enameled wire is bonded to the surface of the support part.
  • the support part is made of metal, plastic and other materials. The following is an explanation with PCB.
  • the lead of the voice coil is connected with the centering support piece. A part of the circuit layout is exposed outside the insulating layer to form an electrical connection point.
  • the lead wire of the voice coil includes an outlet end and an inlet end. One of the outgoing wire end and the incoming wire end is used as a positive connection point, and the other is used as a negative connection point.
  • the outlet end and the inlet end are respectively connected to different electrical connection points. For example, the connection is made by laser welding.
  • the centering support piece is directly or indirectly connected to an external circuit. Avoidance spaces 29 are formed on opposite sides of the magnetic gap. One of the centering branches extends into the avoidance space 29 and is connected to the free end of the corresponding voice coil. The free end refers to the end of the voice coil opposite to the corresponding diaphragm.
  • the centering support piece can be directly connected to an external circuit, or connected to an external circuit through other components. The voice coils of the two vibration systems are connected to the external circuit through their respective centering branches.
  • the two vibration systems of the double-sided sound generating device share one magnetic circuit system. In this way, the structure of the device is simplified and the volume of the device is reduced.
  • avoidance spaces 29 are formed at opposite ends of the magnetic gap, so that one of the centering branches is allowed to extend into the avoidance space 29 and connect with the free end of the voice coil.
  • the force of the centering support plate on the voice coil and the diaphragm is more balanced, which can effectively prevent the vibration system from being polarized.
  • the two vibration systems are the first vibration system and the second vibration system.
  • the first vibration system includes a first voice coil 23, a first reinforcement layer 26, a first diaphragm 25 and a first centering support piece 24.
  • the second vibration system includes a second voice coil 13, a second reinforcement layer 11, a second diaphragm 12 and a second centering support piece.
  • the first diaphragm 23 and the second diaphragm 12 are folded ring diaphragms.
  • the first reinforcement layer 26 is fixed at the center of the first diaphragm 25.
  • the second reinforcement layer 11 is fixed at the center of the second diaphragm 12.
  • the magnetic circuit system is a three magnetic circuit system, including a center magnet 21 and side magnets 18 located on both sides of the center magnet 21.
  • the whole of the double-sided sounding device is rectangular, including two long sides and two short sides arranged oppositely.
  • the long side is parallel to the long axis, and the short side is parallel to the short axis.
  • the length of the long side is greater than the length of the short side.
  • the side magnet 18 extends along the long side.
  • the center magnet 21 extends along the long side.
  • the two side magnets 18 are respectively located on opposite sides of the center magnet 21.
  • the avoidance space can be formed on two long sides or two short sides. In this example, the avoidance space is formed on two opposite short sides. In this way, the internal space occupied is small, and the setting of the center magnet or the side magnets will not be affected.
  • the double-sided sound emitting device also includes a metal structure 20. Part of the metal structure is embedded in the housing 15.
  • the metal structure 20 includes a first side washer 33 and a basin frame 19.
  • the washer 33 on the first side has a ring shape and is connected to the basin frame 19 at two short sides, and the washer 33 on the long side is spaced from the basin frame 19 on the long side.
  • An escape space 29 is formed on the outer side of the portion where the first side washer 33 is connected to the basin frame 19, and a magnetic gap is formed on the inner side.
  • the washer 33 and the basin frame 19 on the first side are located on different planes.
  • the first side washer 33 and the basin frame 19 are both metal materials, and they are integrally formed.
  • the central magnet 21 is fixed on the basin frame 19.
  • a center washer 22 is provided on the side of the center magnet 21 opposite to the basin frame 19.
  • the basin frame 19 not only functions as a support, but also functions as a magnetic conductor.
  • the washer 33 on the first side is embedded in the shell by insert injection molding.
  • a side magnet 18 is provided on the first side washer 33.
  • the second side washer 14 is fixed on the side of the side magnet 18 opposite to the first side washer 33.
  • the free end of the first voice coil 23 is located in the magnetic gap formed by the central magnet 21 and the first side washer 33.
  • the free end of the second voice coil 13 is located in the magnetic gap formed by the basin frame 19 and the second side washer 14.
  • the entire double-sided sound emitting device has a racetrack shape.
  • the arc side is the short side.
  • the straight side is the long side.
  • an electrical connector is provided on the housing.
  • the electrical connector includes an inner pad and an outer pad that are connected to each other.
  • the centering support piece is connected to the inner pad.
  • the external pad is connected to the external circuit.
  • the electrical connector is a metal material.
  • the electrical connector is embedded on the housing by insert injection molding.
  • the electrical connection points of the centering support pieces are welded to the inner pads of the corresponding electrical connectors by laser welding.
  • the external circuit is welded to the outer pad of the corresponding electrical connector by means of laser welding.
  • the two centering branches are connected to an external circuit through a common electrical connection. In this way, the two vibration systems vibrate in response to the same electrical signal, and the electrical connection of the double-sided sound device is simpler.
  • the two voice coils are connected in parallel. Compared with the serial connection mode, the disconnection of one of the two voice coils will not affect the normal operation of the other voice coil, which improves the reliability of the device.
  • the first centering support piece is directly connected to the inner pad of the common electrical connector.
  • the first centering branch is located between the corresponding voice coil and the diaphragm (for example, the first voice coil 23 and the first diaphragm 25), and the first centering branch includes an inner ring and an outer ring.
  • a cantilever is provided on each of the two short sides. Three cantilevers are provided on the long side. Multiple cantilevers are symmetrical at the center.
  • the inner ring is connected to the voice coil.
  • the outer ring is connected to the inner pad of the common electrical connector.
  • the inner ring protrudes inward to form a first protrusion 24a and a second protrusion 24b.
  • the outlet end and the inlet end of the first voice coil are electrically connected to the first protrusion 24a and the second protrusion 24b, respectively.
  • the first protrusion 24a is connected to the first corner 24c of the outer ring through the circuit layout of the first centering support piece 24.
  • the first corner 24c is connected to the inner pad 27b of the first electrical connector 27.
  • the outer pad of the first electrical connector 27 is the positive electrode outer pad 27a.
  • the second protrusion 24b is connected to the second corner 24d located in the outer ring through the circuit layout of the first centering support piece 24.
  • the second corner 24 d is connected to the inner pad 28 b of the second electrical connector 28.
  • the outer pad of the second electrical connector is the negative electrode outer pad 28a.
  • the second centering branch is located at an end of the corresponding voice coil far away from the corresponding diaphragm, that is, the free end of the second voice coil 13.
  • the second centering support piece includes a first part close to the common electrical connector and a second part opposite to the first part. The first part and the second part are respectively located in two opposite avoidance spaces 29.
  • the second centering support piece has a split structure, that is, the first part 16 and the second part 17 are independent of each other.
  • the first part 16 and the second part 17 both include an inner connecting part, an outer connecting part, and an elastic arm connected to the inner connecting part and the outer connecting part.
  • the inner connecting portion is connected with the voice coil.
  • the first part and the second part are respectively connected to the outgoing end and incoming end of the voice coil.
  • the external connection part of the second part is connected to the conducting element 31.
  • the conduction element 31 is located at the third corner 24e.
  • One of the outlet end or the inlet end of the second voice coil 13 is connected to the inner connecting portion 16a of the first part.
  • the first part is directly connected to the inner pad of the electrical connector (for example, the inner pad of the first electrical connector 27).
  • the other of the outlet end or the inlet end of the second voice coil 13 is connected to the inner connecting portion 17 a of the second part 17.
  • the second part 17 is connected to the first centering support piece 24 through a conducting element 31 provided on the housing, and is electrically connected to the common electrical connection through the first centering support piece 24
  • Another inner pad (for example, the inner pad of the second electrical connector 28) is connected.
  • the first part and the second part are respectively used to connect the outlet end and the inlet end of the voice coil, and the connection position of the voice coil is easier to distinguish.
  • the second part is connected to the second electrical connector through the circuit layout of the first centering branch, and there is no need to provide additional wires or lead out the leads of the voice coil.
  • the two centering support pieces are connected to an external circuit through independent electrical connections.
  • four electrical connections are provided on the housing. Two of the electrical connectors are used to conduct the first centering branch and the external circuit; the other two electrical connectors are used to conduct the second centering branch and the external circuit.
  • the two vibration systems can independently access electrical signals. This allows the acoustic performance of the two vibration systems to be optimized.
  • the way that two voice coils are independently connected to electrical signals enables more customized applications in the overall application of the double-sided sounding device.
  • one of the vibration systems or two vibration systems can be selectively used to produce sound; or within the set frequency range, one vibration system can compensate for the acoustic performance of the other vibration system; or the two vibration systems can be controlled to be inverted Bit vibration makes sound.
  • the plurality of outer pads of the plurality of electrical connectors are located on the same long side or the same short side.
  • the location of multiple external pads is compact, which makes it easy to assemble the double-sided sounding device and external equipment.
  • the lead wire of the first voice coil 23 is drawn out in the same manner as in the foregoing embodiment.
  • the outer pad corresponding to the first voice coil 23 is the first positive electrode outer pad 27a1
  • the corresponding negative electrode outer pad is the first negative electrode outer pad 28a1.
  • Both the outlet end and the inlet end of the second voice coil 23 are connected to the first part.
  • the outlet end and the inlet end are respectively connected to the two inner connecting parts 16a of the first part 16 and are led to the two outer connecting parts of the first part 16 through the circuit layout of the first part 16.
  • the two external connection parts of the first part 16 are respectively connected to the electrical connections corresponding to the second voice coil 23, and the external pads of the two electrical connections are the second positive electrode outer pad 27a2 and the second negative electrode outer pad. 28a2.
  • the two outer pads corresponding to one voice coil are located at one end of the side, and the two outer pads corresponding to the other voice coil are located at the other end of the side.
  • the first positive electrode outer pad 27a1 and the first negative electrode outer pad 28a1 corresponding to the first voice coil 23 are located at one end of the short side.
  • the second positive electrode outer pad 27a2 and the second negative electrode outer pad 28a2 corresponding to the second voice coil 13 are located at the other end of the short side. In this way, the outer pads of the two voice coils 13, 23 are easier to distinguish, making the electrical connection of the double-sided sounding device and the external circuit easier.
  • the two outer pads corresponding to the positive poles of the two voice coils are located at one end of the side, and the two outer pads corresponding to the negative poles of the two voice coils are located at the other end of the side.
  • the first positive electrode outer pad 27a1 and the second positive electrode outer pad 27a2 are located at one end of the short side.
  • the first negative electrode outer pad 28a1 and the second negative electrode outer pad 28a2 are located at the other end of the short side.
  • the outer pads of the same polarity are close to each other, and the outer pads of different polarities are far away from each other, so that it is easier to distinguish the positive and negative electrodes of the double-sided sound device, and it is not easy to short-circuit the positive and negative electrodes.
  • the two outer pads located in the middle correspond to one voice coil
  • the other two outer pads correspond to the other voice coil.
  • the two outer pads located in the middle are the second positive electrode outer pad 27a2 and the second negative electrode outer pad 28a2, respectively.
  • the two outer pads correspond to the second voice coil.
  • the other two outer pads are closer to both ends of the short side, namely the first positive electrode outer pad 27a1 and the first negative electrode outer pad 28a1.
  • the two outer pads correspond to the first voice coil. This makes the electrical connection of the two voice coils easier to distinguish.
  • the centering support piece extends to the outside of the housing to form an outer pad.
  • the external pad is connected to the external circuit.
  • the outlet end and the inlet end of the second voice coil are connected to the two inner connecting parts of the first part 16 respectively.
  • the first part includes two outer pads extending toward the outer sidewall of the short side, such as a second positive electrode outer pad 27a2 and a second negative electrode outer pad 28a2.
  • the second pad is directly connected to the external circuit, so that no additional electrical connectors are needed for electrical connection, which saves materials and simplifies the installation process of the double-sided sound emitting device.
  • first centering support piece may lead out two outer pads for connecting the first voice coil.
  • the outer pad extends along the outer side wall of the housing 15 and is bonded to the outer side wall.
  • the second positive electrode outer pad 27a2 and the second negative electrode outer pad 28a2 are bent to the short side and abut on the outer side wall of the short side.
  • the two outer pads 27a2, 28a2 are fixed on the outer side wall of the short side by adhesive.
  • the first positive electrode outer pad 27a1 and the first negative electrode outer pad 28a1 are bent to the short side and abut against the outer side wall of the short side.
  • the two outer pads 27a1, 28a1 are fixed on the outer side wall of the short side by adhesive.
  • the space occupied by the outer pad is small, which effectively reduces the space occupied by the double-sided sound generating device, for example, the size of the long side is reduced, which conforms to the development trend of miniaturization of electronic equipment.
  • the double-sided sound emitting device further includes an elastic piece 30.
  • the centering support piece is connected to the elastic piece 30.
  • the elastic piece 30 is in contact with an external circuit.
  • the outer pad formed by the extension of the centering support piece.
  • the outer pad is attached to the outer side wall of the housing 15.
  • the elastic sheet 30 includes an elastic sheet pad 30a, a contact 30b, and a bent portion 30c for connecting the elastic sheet pad 30a and the contact 30b.
  • the bent portion 30c provides elastic force for the contact 30b.
  • the contact 30b has a hook. A hole is provided on the shrapnel pad 30a, and the hook is clamped in the hole to limit the moving distance of the contact.
  • the spring pad 30a is welded to the outer pad of the centering support piece.
  • the first positive electrode outer pad 27a1, the first negative electrode outer pad 28a1, the second positive electrode outer pad 27a2, and the second negative electrode outer pad 28a2 are respectively connected to the four shrapnel pads 30a, and the contact 30b faces outward. Set up. When assembling, the contact 30b is directly connected to the external circuit without soldering. This makes the electrical connection and disassembly of the double-sided sound generating device and the external circuit easy.
  • multiple outer pads face the same direction.
  • the first positive electrode outer pad 27a1, the first negative electrode outer pad 28a1, the second positive electrode outer pad 27a2, and the second negative electrode outer pad 28a2 all face the side of the first vibration system.
  • the second vibration system is on one side or toward the outside. This arrangement is easier to access external circuits.
  • an electronic device can be, but are not limited to, laptops, tablets, mobile phones, game consoles, walkie-talkies, smart watches, headsets, etc.
  • the electronic equipment includes the above-mentioned double-sided sound emitting device.

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

Abstract

本发明公开了一种双面发声装置以及电子设备。该装置包括：壳体；磁路系统，所述磁路系统被设置在所述壳体内，所述磁路系统用于形成磁间隙；以及与所述磁路系统相配合的两个振动系统，两个所述振动系统被分别设置在所述壳体的沿振动方向的相对的两侧，每个所述振动系统包括音圈和定心支片，所述音圈的引线与所述定心支片连接，所述定心支片直接或者间接地与外部电路导通，在所述磁间隙的相对的两侧形成避让空间，其中一个定心支片延伸至所述避让空间内，并与相对应的音圈的自由端连接。

Description

双面发声装置以及电子设备 技术领域
本发明涉及电声转换技术领域，更具体地，涉及一种双面发声装置以及电子设备。
背景技术
现有的扬声器单体，通常只设置有个一振动系统。这种扬声器单体具有发声效果单一，音质差的特点。在一些方案中，采用两个振动系统。两个振动系统响应于同一个电信号而发声振动。
然而，由于这种扬声器单体的内部结构复杂，故使得音圈的引线的引出以及与外部电路的连接变得困难。
因此，需要提供一种新的技术方案，以解决上述技术问题。
发明内容
本发明的一个目的是提供一种双面发声装置的新技术方案。
根据本发明的第一方面，提供了一种双面发声装置。该装置包括：壳体；磁路系统，所述磁路系统被设置在所述壳体内，所述磁路系统用于形成磁间隙；以及与所述磁路系统相配合的两个振动系统，两个所述振动系统被分别设置在所述壳体的沿振动方向的相对的两侧，每个所述振动系统包括音圈和定心支片，所述音圈的引线与所述定心支片连接，所述定心支片直接或者间接地与外部电路导通，在所述磁间隙的相对的两侧形成避让空间，其中一个定心支片延伸至所述避让空间内，并与相对应的音圈的自由端连接。
可选地，在所述壳体上设置有电连接件，所述电连接件包括相互导通的内焊盘和外焊盘，所述定心支片与所述内焊盘连接，所述外焊盘与外部电路导通。
可选地，两个所述定心支片通过各自独立的电连接件与外部电路导通。
可选地，两个所述定心支片通过共用的电连接件与外部电路导通。
可选地，计两个定心支片分别为第一定心支片和第二定心支片，所述第一定心支片直接与所述共用的电连接件的内焊盘连接，所述第二定心支片包括靠近所述共用的电连接件的第一部分和与所述第一部分相对的第二部分，所述第一部分和所述第二部分分别位于相对的两个避让空间内，所述第一部分直接与所述内焊盘连接，所述第二部分通过设置在所述壳体上的导通元件与所述第一定心支片连接，并通过所述第一定心支片与所述共用的电连接的另一个内焊盘连接。
可选地，所述第一定心支片位于相对应的音圈和振膜之间，所述第一定心支片包括内环、外环以及与与所述内环和所述外环之间的弹臂，所述内环与所述音圈连接，所述外环与所述共用的电连接件的内焊盘连接。
可选地，所述第一部分和所述第二部分是相互独立的，所述第一部分和所述第二部分均包括内连接部、外连接部和与所述内连接部和所述外连接部连接的弹臂，所述内连接部与所述音圈连接，所述第二部分的外连接部与所述导通元件连接。
可选地，所述定心支片向所述壳体外延伸，以形成外焊盘，所述外焊盘与外部电路导通。
可选地，所述外焊盘沿所述壳体的外侧壁延伸，并被粘结在所述外侧壁上。
可选地，还包括弹片，所述定心支片与所述弹片连接，所述弹片与外部电路接触连接。
可选地，所述双面发声装置包括相对设置的两条长边和两条短边，多个所述外焊盘位于同一条长边或者同一条短边上。
可选地，所述双面发声装置包括相对设置的两条长边和两条短边，多个所述外焊盘位于同一条长边或者同一条短边上，对应于其中一个音圈的两个外焊盘位于所在边的一端，对应于另一个音圈的两个外焊盘位于所在边的另一端。
可选地，所述双面发声装置包括相对设置的两条长边和两条短边，多个所述外焊盘位于同一条长边或者同一条短边上，对应于两个音圈的正极的两个外焊盘位于所在边的一端，对应于两个音圈的负极的两个外焊盘位于所在边的另一端。
可选地，在四个外焊盘中，位于中部的两个外焊盘对应于一个音圈，另外两个外焊盘对应于另一个音圈。
可选地，所述双面发声装置包括相对设置的两条长边和两条短边，所述磁路系统包括中心磁铁和设置在所述中心磁铁的相对的两侧的边磁铁，所述边磁铁沿所述长边延伸。
根据本公开的另一个实施例，提供了一种电子设备。该电子设备包括上述的双面发声装置。
通过以下参照附图对本发明的示例性实施例的详细描述，本发明的其它特征及其优点将会变得清楚。
附图说明
被结合在说明书中并构成说明书的一部分的附图示出了本发明的实施例，并且连同其说明一起用于解释本发明的原理。
图1是根据本公开的一个实施例的双面发声装置的分解图。
图2是根据本公开的一个实施例的双面发声装置的沿长轴的剖视图。
图3是根据本公开的一个实施例的双面发声装置的沿短轴的剖视图。
图4是根据本公开的一个实施例的第一定心支片与电连接件的装配图。
图5是根据本公开的一个实施例的第一定心支片与电连接件的位置关系图。
图6是根据本公开的一个实施例的第二音圈、第二定心支片与电连接件的装配图。
图7是根据本公开的第二个实施例的第一定心支片与电连接件的装配图。
图8是根据本公开的第二个实施例的第二音圈、第二定心支片与电连 接件的装配图。
图9是根据本公开的第二个实施例的第二音圈、第二定心支片与电连接件的位置关系图。
图10是根据本公开的第三个实施例的第一定心支片与电连接件的装配图。
图11是根据本公开的第三个实施例的第一定心支片与电连接件的位置关系图。
图12是根据本公开的第三个实施例的第二音圈、第二定心支片与电连接件的装配图。
图13是根据本公开的第三个实施例的第二音圈、第二定心支片与电连接件的位置关系图。
图14是根据本公开的第四个实施例的第二音圈、第二定心支片与电连接件的装配图。
图15是根据本公开的第四个实施例的第二定心支片的结构示意图。
图16是根据本公开的第五个实施例的第一定心支片的结构示意图。
图17是根据本公开的第五个实施例的第二定心支片的结构示意图。
图18是根据本公开的第六个实施例的双面发声装置的侧视图。
图19是根据本公开的第六个实施例的弹片的结构示意图。
具体实施方式
现在将参照附图来详细描述本发明的各种示例性实施例。应注意到：除非另外具体说明，否则在这些实施例中阐述的部件和步骤的相对布置、数字表达式和数值不限制本发明的范围。
以下对至少一个示例性实施例的描述实际上仅仅是说明性的，决不作为对本发明及其应用或使用的任何限制。
对于相关领域普通技术人员已知的技术、方法和设备可能不作详细讨论，但在适当情况下，所述技术、方法和设备应当被视为说明书的一部分。
在这里示出和讨论的所有例子中，任何具体值应被解释为仅仅是示例性的，而不是作为限制。因此，示例性实施例的其它例子可以具有不同的 值。
应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步讨论。
根据本公开的一个实施例，提供了一种双面发声装置。该双面发声装置包括壳体15、磁路系统和两个振动系统。所述磁路系统被设置在所述壳体内。磁路系统用于形成磁间隙。磁路系统可以是单磁路系统、三磁路系统或者五磁路系统。
两个振动系统与所述磁路系统相配合，以振动发声。两个所述振动系统被分别设置在所述壳体15的沿振动方向的相对的两侧。两个振动系统共用一个磁路系统。
每个所述振动系统包括连接在一起的振膜、音圈和定心支片。所述定心支片包括导体。例如，定心支片包括电路层和覆盖在所述电路层外的绝缘层。电路层由导体制作而成。例如定心支片为PCB板。PCB包括电路布图和覆盖在电路布图外的绝缘层。还可以是，定心支片包括支撑部和设置在支撑部上的导线。支撑部起到支撑的作用，导线起到导通的作用。导线可以为多条以分别导通多个的元器件。例如，导线为漆包线。漆包线被粘结在在支撑部的表面。支撑部为金属、塑料等材质。下面以PCB进行说明。
所述音圈的引线与所述定心支片连接。电路布图的局部裸露在所述绝缘层外，以形成电连接点。所述音圈的引线包括出线端和入线端。出线端和入线端中的一个作为正极接线点，另一个作为负极接线点。出线端和入线端分别与不同的电连接点连接。例如，通过激光焊接进行连接。
所述定心支片直接或者间接地与外部电路导通。在所述磁间隙的相对的两侧形成避让空间29。其中一个定心支片延伸至所述避让空间29内，并与相对应的音圈的自由端连接。自由端是指音圈的与对应的振膜相对的一端。定心支片可以直接与外部电路连接，或者通过其他元件与外部电路连接。两个振动系统的音圈通过各自的定心支片与外部电路导通。
在本公开实施例中，双面发声装置的两个振动系统共用一个磁路系统。通过这种方式，简化了装置的结构，减小了装置的体积。
此外，在磁间隙的相对的两端形成避让空间29，这样，允许其中一个定心支片延伸至避让空间29内并与音圈的自由端连接。这种连接方式，该定心支片对音圈和振膜的作用力更均衡，能有效地防止振动系统发生偏振。
如图1-3所示，两个振动系统分别为第一振动系统和第二振动系统。第一振动系统包括第一音圈23、第一补强层26、第一振膜25和第一定心支片24。第二振动系统包括第二音圈13、第二补强层11、第二振膜12和第二定心支片。第一振膜23和第二振膜12为折环振膜。第一补强层26被固定在第一振膜25的中心部。第二补强层11被固定在第二振膜12的中心部。
在该例子中，磁路系统为三磁路系统，包括中心磁铁21和位于中心磁铁21的两侧的边磁铁18。双面发声装置的整体呈长方形，包括相对设置的两条长边和两条短边。长边平行于长轴，短边平行于短轴。长边的长度大于短边的长度。边磁铁18沿长边延伸。中心磁铁21沿长边延伸。两个边磁铁18分别位于中心磁铁21的相对的两侧。避让空间可以形成在两个长边或者两个短边上。在该例子中，避让空间形成在两个相对的短边上。这样，占用的内部空间小，不会影响中心磁铁或边磁铁的设置。
该双面发声装置还包括金属结构件20。金属结构件的局部嵌入壳体15内。金属结构件20包括第一边华司33和盆架19。第一边华司33呈环形，并且在两个短边处与盆架19连接，在长边处第一边华司33和盆架19相间隔。在第一边华司33与盆架19连接的部位外侧形成避让空间29，内侧形成磁间隙。
第一边华司33和盆架19位于不同的平面。例如，第一边华司33与盆架19均为金属材料，并且二者是一体成型的。盆架19上固定中心磁铁21。在中心磁铁21的与盆架19相对的一侧设置有中心华司22。盆架19不仅起到支撑的作用，还起到导磁的作用。第一边华司33通过嵌件注塑嵌入壳体内。在第一边华司33上设置有边磁铁18。第二边华司14被固定在所述边磁铁18的与第一边华司33相对的一侧。第一音圈23的自由端位于所述中心磁铁21与第一边华司33形成的磁间隙中。第二音圈13的自由端位于所述盆架19与所述第二边华司14形成的磁间隙中。
在其他示例中，双面发声装置的整体呈跑道形。弧形边为短边。直边为长边。
在一个例子中，在所述壳体上设置有电连接件。所述电连接件包括相互导通的内焊盘和外焊盘。所述定心支片与所述内焊盘连接。所述外焊盘与外部电路导通。例如，电连接件为金属材料。与每个振动系统对应的电连接件为两个，分别导通音圈的出线端和入线端。例如，通过嵌件注塑的方式将电连接件嵌设在壳体上。定心支片的电连接点通过激光焊接与相对应的电连接件的内焊盘焊接。外部电路通过激光焊接的方式与相对应的电连接件的外焊盘焊接。
在一个例子中，两个所述定心支片通过共用的电连接件与外部电路导通。通过这种方式，两个振动系统响应于同一个电信号而发生振动，双面发声装置的电连接更加简单。
两个音圈是并联的。相对于串联的连接方式，两个音圈中的一个出现断线，不会影响另一个音圈的正常工作，提高了装置的可靠性。
此外，简化了双面发声装置的外部结构，整机应用更加容易。
例如，如图4-6所示，所述第一定心支片直接与所述共用的电连接件的内焊盘连接。例如，所述第一定心支片位于相对应的音圈和振膜(例如，第一音圈23和第一振膜25)之间，所述第一定心支片包括内环、外环以及与与所述内环和所述外环之间的弹臂。在两个短边上各设置有一条悬臂。在长边上设置有三条悬臂。多条悬臂呈中心对称。
所述内环与所述音圈连接。所述外环与所述共用的电连接件的内焊盘连接。例如，内环向内突出以形成第一凸起部24a和第二凸起部24b。第一音圈的出线端和入线端分别与第一凸起部24a和第二凸起部24b电连接。第一凸起部24a通过第一定心支片24的电路布图与位于外环的第一角部24c导通。第一角部24c与第一电连接件27的内焊盘27b连接。第一电连接件27的外焊盘为正极外焊盘27a。第二凸起部24b通过第一定心支片24的电路布图与位于外环的第二角部24d导通。第二角部24d与第二电连接件28的内焊盘28b连接。第二电连接件的外焊盘为负极外焊盘28a。
所述第二定心支片位于相对应的音圈的远离相对应的振膜的一端，即 第二音圈13的自由端。所述第二定心支片包括靠近所述共用的电连接件的第一部分和与所述第一部分相对的第二部分。所述第一部分和所述第二部分分别位于相对的两个避让空间29内。第二定心支片为分体结构，即第一部分16和第二部分17是相互独立的。
所述第一部分16和所述第二部分17均包括内连接部、外连接部和与所述内连接部和所述外连接部连接的弹臂。所述内连接部与所述音圈连接。第一部分和第二部分分别连接音圈的出线端和入线端。所述第二部分的外连接部与所述导通元件31连接。例如，导通元件31位于第三角部24e。
第二音圈13的出线端或入线端中的一个与第一部分的内连接部16a连接。所述第一部分直接与所述电连接件的内焊盘(例如，第一电连接件27的内焊盘)连接。第二音圈13的出线端或入线端中的另一个与第二部分17的内连接部17a连接。所述第二部分17通过设置在所述壳体上的导通元件31与所述第一定心支片24连接，并通过所述第一定心支片24与所述共用的电连接的另一个内焊盘(例如，第二电连接件28的内焊盘)连接。
在该例子中，第一部分和第二部分分别用于连接音圈的出线端和入线端，音圈的连接位置更容易区分。
此外，通过第一定心支片的电路布图将第二部分与第二电连接件导通，不需要另外设置导线或者将音圈的引线引出。
在一个例子中，两个所述定心支片通过各自独立的电连接件与外部电路导通。例如，在壳体上设置有四个电连接件。其中两个电连接件用于导通第一定心支片与外部电路；另外两个电连接件用于导通第二定心支片与外部电路。通过这种方式，两个振动系统能够独立地接入电信号。这使得两个振动系统的声学性能得到优化。
此外，与共用电连接件的方式相比，两个音圈独立接入电信号的方式，使得双面发声装置的整机应用中可实现更多定制化的应用。例如，可以选择性利用其中一个振动系统发声或者两个振动系统同时发声；或者在设定频率范围内，一个振动系统对另一个振动系统的声学性能进行补偿；或者可以控制两个振动系统反相位振动发声。
在一个例子中，多个电连接件的多个所述外焊盘位于同一条长边或者 同一条短边上。多个外焊盘的位置紧凑，这使得双面发声装置与外部设备的装配变得容易。
如图7-9所示，在该例子中，第一音圈23的引线的引出方式与前述实施例相同。第一音圈23对应的外焊盘为第一正极外焊盘27a1,对应的负极外焊盘为第一负极外焊盘28a1。第二音圈23的出线端和入线端均与第一部分连接。出线端和入线端分别与第一部分16的两个内连接部16a连接，并通过第一部分16的电路布图引至第一部分16的两个外连接部。第一部分16的两个外连接部分别连接到与第二音圈23对应的电连接件上，两个电连接件的外焊盘分别为第二正极外焊盘27a2和第二负极外焊盘28a2。
在该例子中，可以是，对应于其中一个音圈的两个外焊盘位于所在边的一端，对应于另一个音圈的两个外焊盘位于所在边的另一端。例如，如图7所示，对应于第一音圈23的第一正极外焊盘27a1和第一负极外焊盘28a1位于短边的一端。对应于第二音圈13的第二正极外焊盘27a2和第二负极外焊盘28a2位于该短边的另一端。通过这种方式，两个音圈13,23的外焊盘更容易区分，使得双面发声装置与外部电路的电连接变得容易。
还可以是，对应于两个音圈的正极的两个外焊盘位于所在边的一端，对应于两个音圈的负极的两个外焊盘位于所在边的另一端。例如，如图10所示，第一正极外焊盘27a1和第二正极外焊盘27a2位于短边的一端。第一负极外焊盘28a1和第二负极外焊盘28a2位于该短边的另一端。通过这种方式，相同极性的外焊盘相互靠近，不同极性的外焊盘相互远离，这样更容易区分双面发声装置的正、负极，并且不容易发生正极与负极的短接。
在一个例子中，在四个外焊盘中，位于中部的两个外焊盘对应于一个音圈，另外两个外焊盘对应于另一个音圈。例如，如图10-13所示，位于中部的两个外焊盘分别为第二正极外焊盘27a2和第二负极外焊盘28a2。该两个外焊盘对应于第二音圈。另外两个外焊盘更靠近该短边的两端，分别为第一正极外焊盘27a1和第一负极外焊盘28a1。该两个外焊盘对应于第一音圈。这使得两个音圈的电连接更容易区分。
在一个例子中，如图14-15所示，所述定心支片向所述壳体外延伸，以形成外焊盘。所述外焊盘与外部电路导通。例如，第二音圈的出线端和 入线端分别与第一部分16的两个内连接部连接。该第一部分包括向短边的外侧壁延伸出的两个外焊盘，例如第二正极外焊盘27a2和第二负极外焊盘28a2。在该例子中，第二焊盘直接与外部电路连接，从而不需要另外设置电连接件来进行电连接，这样节约了材料，简化了双面发声装置的安装工序。
当然，也可以是第一定心支片向外引出两个外焊盘，以用于连接第一音圈。
在一个例子中，如图16-17所示，所述外焊盘沿所述壳体15的外侧壁延伸，并被粘结在所述外侧壁上。例如，如图17所示，第二正极外焊盘27a2和第二负极外焊盘28a2，向短边弯折，并贴靠在短边的外侧壁上。两个外焊盘27a2，28a2通过粘结剂被固定在短边的外侧壁上。
如图16所示，第一正极外焊盘27a1和第一负极外焊盘28a1，向短边弯折，并贴靠在短边的外侧壁上。两个外焊盘27a1，28a1通过粘结剂被固定在短边的外侧壁上。
通过这种方式，外焊盘占用的空间小，有效地减小了双面发声装置所占的空间，例如减小了长边的尺寸，顺应了电子设备小型化的发展趋势。
在一个例子中，双面发声装置还包括弹片30。所述定心支片与所述弹片30连接。所述弹片30与外部电路接触连接。
例如，定心支片延伸形成的外焊盘。外焊盘贴靠在壳体15的外侧壁上。弹片30包括弹片焊盘30a、触点30b和用于连接弹片焊盘30a和触点30b的弯折部30c。弯折部30c为触点30b提供弹力。触点30b具有挂钩。弹片焊盘30a上设置有孔，挂钩卡在孔中，以限定触点的移动距离。
弹片焊盘30a与定心支片的外焊盘焊接。例如，第一正极外焊盘27a1、第一负极外焊盘28a1、第二正极外焊盘27a2和第二负极外焊盘28a2分别与四个弹片的弹片焊盘30a连接，触点30b朝外设置。在进行装配时，触点30b直接与外部电路接触连接，而不需要焊接。这使得双面发声装置与外部电路的电连接、拆卸变得容易。
在一个例子中，多个外焊盘朝向同一方向。例如，如图14、18所示，第一正极外焊盘27a1、第一负极外焊盘28a1、第二正极外焊盘27a2和第 二负极外焊盘28a2均朝向第一振动系统一侧、第二振动系统一侧或者朝向外侧。这种设置方式更易于外部电路的接入。
根据本公开的另一个实施例，提供了一种电子设备。电子设备可以是但不局限于笔记本电脑、平板电脑、手机、游戏机、对讲机、智能手表、耳机等。该电子设备包括上述的双面发声装置。
虽然已经通过例子对本发明的一些特定实施例进行了详细说明，但是本领域的技术人员应该理解，以上例子仅是为了进行说明，而不是为了限制本发明的范围。本领域的技术人员应该理解，可在不脱离本发明的范围和精神的情况下，对以上实施例进行修改。本发明的范围由所附权利要求来限定。

Claims (16)

  1. 一种双面发声装置，其中，包括：
    壳体；
    磁路系统，所述磁路系统被设置在所述壳体内，所述磁路系统用于形成磁间隙；以及
    与所述磁路系统相配合的两个振动系统，两个所述振动系统被分别设置在所述壳体的沿振动方向的相对的两侧，每个所述振动系统包括音圈和定心支片，所述音圈的引线与所述定心支片连接，所述定心支片直接或者间接地与外部电路导通，在所述磁间隙的相对的两侧形成避让空间，其中一个定心支片延伸至所述避让空间内，并与相对应的音圈的自由端连接。
  2. 根据权利要求1所述的双面发声装置，其中，在所述壳体上设置有电连接件，所述电连接件包括相互导通的内焊盘和外焊盘，所述定心支片与所述内焊盘连接，所述外焊盘与外部电路导通。
  3. 根据权利要求2所述的双面发声装置，其中，两个所述定心支片通过各自独立的电连接件与外部电路导通。
  4. 根据权利要求2所述的双面发声装置，其中，两个所述定心支片通过共用的电连接件与外部电路导通。
  5. 根据权利要求4所述的双面发声装置，其中，计两个定心支片分别为第一定心支片和第二定心支片，所述第一定心支片直接与所述共用的电连接件的内焊盘连接，所述第二定心支片包括靠近所述共用的电连接件的第一部分和与所述第一部分相对的第二部分，所述第一部分和所述第二部分分别位于相对的两个避让空间内，所述第一部分直接与所述内焊盘连接，所述第二部分通过设置在所述壳体上的导通元件与所述第一定心支片连接，并通过所述第一定心支片与所述共用的电连接的另一个内焊盘连接。
  6. 根据权利要求5所述的双面发声装置，其中，所述第一定心支片位于相对应的音圈和振膜之间，所述第一定心支片包括内环、外环以及与与所述内环和所述外环之间的弹臂，所述内环与所述音圈连接，所述外环与所述共用的电连接件的内焊盘连接。
  7. 根据权利要求5所述的双面发声装置，其中，所述第一部分和所述第二部分是相互独立的，所述第一部分和所述第二部分均包括内连接部、外连接部和与所述内连接部和所述外连接部连接的弹臂，所述内连接部与所述音圈连接，所述第二部分的外连接部与所述导通元件连接。
  8. 根据权利要求1所述的双面发声装置，其中，所述定心支片向所述壳体外延伸，以形成外焊盘，所述外焊盘与外部电路导通。
  9. 根据权利要求8所述的双面发声装置，其中，所述外焊盘沿所述壳体的外侧壁延伸，并被粘结在所述外侧壁上。
  10. 根据权利要求1所述的双面发声装置，其中，还包括弹片，所述定心支片与所述弹片连接，所述弹片与外部电路接触连接。
  11. 根据权利要求3所述的双面发声装置，其中，所述双面发声装置包括相对设置的两条长边和两条短边，多个所述外焊盘位于同一条长边或者同一条短边上。
  12. 根据权利要求3所述的双面发声装置，其中，所述双面发声装置包括相对设置的两条长边和两条短边，多个所述外焊盘位于同一条长边或者同一条短边上，对应于其中一个音圈的两个外焊盘位于所在边的一端，对应于另一个音圈的两个外焊盘位于所在边的另一端。
  13. 根据权利要求3所述的双面发声装置，其中，所述双面发声装置包括相对设置的两条长边和两条短边，多个所述外焊盘位于同一条长边或者同一条短边上，对应于两个音圈的正极的两个外焊盘位于所在边的一端，对应于两个音圈的负极的两个外焊盘位于所在边的另一端。
  14. 根据权利要求13所述的双面发声装置，其中，在四个外焊盘中，位于中部的两个外焊盘对应于一个音圈，另外两个外焊盘对应于另一个音圈。
  15. 根据权利要求1所述的双面发声装置，其中，所述双面发声装置包括相对设置的两条长边和两条短边，所述磁路系统包括中心磁铁和设置在所述中心磁铁的相对的两侧的边磁铁，所述边磁铁沿所述长边延伸。
  16. 一种电子设备，其中，包括如权利要求1-15中的任意一项所述的双面发声装置。
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