WO2020000926A1 - 发声器件和便携终端 - Google Patents

发声器件和便携终端 Download PDF

Info

Publication number
WO2020000926A1
WO2020000926A1 PCT/CN2018/121129 CN2018121129W WO2020000926A1 WO 2020000926 A1 WO2020000926 A1 WO 2020000926A1 CN 2018121129 W CN2018121129 W CN 2018121129W WO 2020000926 A1 WO2020000926 A1 WO 2020000926A1
Authority
WO
WIPO (PCT)
Prior art keywords
diaphragm
magnetic circuit
sound
voice coil
fixedly connected
Prior art date
Application number
PCT/CN2018/121129
Other languages
English (en)
French (fr)
Inventor
王兴龙
刘岩涛
张成飞
刘春发
Original Assignee
歌尔股份有限公司
Priority date (The priority date 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 date listed.)
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 WO2020000926A1 publication Critical patent/WO2020000926A1/zh

Links

Images

Classifications

    • 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
    • H04R9/02—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
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/045—Mounting

Definitions

  • the present invention relates to the technical field of electroacoustics, and in particular, to a sound emitting device and a portable terminal applying the sound emitting device.
  • speakers are widely used as important components of terminals with audio playback functions.
  • the main purpose of the present invention is to provide a sounding device, which aims to solve the technical problem that the existing sounding device that realizes two-way sound is difficult to be widely used due to its large size.
  • the sound generating device provided by the present invention includes:
  • the first vibration system includes a first diaphragm and a voice coil provided inside the first diaphragm, and the voice coil is fixedly connected to the first diaphragm;
  • a second vibration system including a second vibration film disposed opposite to the first vibration film
  • a magnetic circuit system is provided between the first diaphragm and the second diaphragm, and the magnetic circuit system is provided with an avoidance part;
  • a connecting member one end of the connecting member is fixedly connected to the voice coil, and the other end is movable through the avoiding portion and is fixedly connected to the second diaphragm.
  • the magnetic circuit system includes a magnetically permeable yoke, a central magnetic circuit portion and an edge magnetic circuit portion provided on the magnetic yoke, and at least one of the central magnetic circuit portion and the edge magnetic circuit portion A permanent magnet is provided, and a magnetic gap containing the voice coil is formed between the central magnetic circuit portion and the side magnetic circuit portion; the avoidance portion is further provided at a position of the magnetic yoke corresponding to the voice coil.
  • a first acoustic cavity is formed between the magnetic circuit system and the first diaphragm
  • a second acoustic cavity is formed between the magnetic circuit system and the second diaphragm
  • the avoidance portion communicates with the first acoustic cavity.
  • a sound cavity and a second sound cavity are formed between the magnetic circuit system and the first diaphragm
  • the magnetic yoke includes two opposite long sides and two short sides, the long sides are spaced from the short sides, and the central magnetic path portion is located in the middle of the magnetic yoke
  • the side magnetic circuit portion is located on opposite sides of the central magnetic circuit portion and extends along the long side edge, and the magnetically conducting yoke is provided with a first avoidance notch forming place corresponding to the position of each of the short side edges; The avoidance department.
  • the connecting member includes an upper connecting portion and a lower connecting portion opposite to each other and a supporting portion connected between the upper connecting portion and the lower connecting portion, and the upper connecting portion and the lower connecting portion are along the short The side edge extends into a long shape, the upper connecting portion is fixedly connected to the voice coil, and the lower connecting portion is fixedly connected to the second diaphragm.
  • a mounting step is formed on the upper connecting portion, and a lower end of the voice coil is fixedly connected to a step wall surface of the mounting step.
  • the upper connecting portion is further provided with a second avoidance gap, the second avoidance gap is located on the step wall surface of the installation step away from the support portion, and along the step wall surface away from the support portion Through the thickness direction.
  • the support portion is provided with at least one avoidance hole penetrating in a thickness direction thereof.
  • the lower connecting portion is convexly extended to one side of the supporting portion and forms an included angle with the supporting portion, and the lower surface of the lower connecting portion is fixedly connected to the second diaphragm.
  • the connecting member is made of plastic or metal.
  • the first diaphragm includes a central portion, a folded ring portion provided around the central portion, and a fixed portion provided around the folded portion.
  • the central portion of the first diaphragm is a flat sheet-like structure, and the folded portion
  • the ring portion is a structure composed of one protrusion, or the folded ring portion is a wavy structure composed of at least one protrusion and at least one depression.
  • the second diaphragm includes a central portion, a folded ring portion provided around the central portion, and a fixed portion provided around the folded portion; the central portion is a flat sheet-like structure, and the folded ring portion is formed by one A structure composed of protrusions, or the folded ring portion is a wavy structure composed of at least one protrusion and at least one depression.
  • the present invention also proposes a portable terminal including a housing, the housing having an accommodation cavity inside, the portable terminal further includes a sound emitting device as described above, the sound emitting device is installed in the accommodation cavity, and the housing A first sound hole corresponding to the first diaphragm and a second sound hole corresponding to the second diaphragm are provided.
  • the housing includes a front surface and a rear surface opposite to each other, the first sound hole is provided on the front surface, and the second sound hole is provided on the reverse surface.
  • the sound generating device of the present invention uses two sets of vibration systems and one set of magnetic circuit systems.
  • the voice coil in the first vibration system is fixed to the first diaphragm, and the second diaphragm in the second vibration system is fixedly connected to the voice coil through a connecting member.
  • the magnetic yoke in the magnetic circuit system is designed with an avoidance portion that cooperates with the connecting member. In this way, when the sounding device works, the first vibration in the first vibration system is directly driven by the magnetic circuit system's effect on the voice coil.
  • the diaphragm vibrates to make a sound, and at the same time, the connecting member drives the second diaphragm of the second vibration system to act in conjunction with the voice coil to make a sound at the same time.
  • the present invention can drive two diaphragms to achieve bidirectional sound through a voice coil and a magnetic circuit system
  • the structure of the sounding device between the first diaphragm and the second diaphragm occupies a small volume and can be adapted to a relatively small size.
  • the installation space is easy to be widely used in portable terminals.
  • FIG. 1 is a schematic front structural diagram of an embodiment of a sound generating device according to the present invention
  • FIG. 2 is a schematic diagram of a rear structure of the sound generating device in FIG. 1;
  • FIG. 2 is a schematic diagram of a rear structure of the sound generating device in FIG. 1;
  • FIG. 3 is a schematic diagram of an exploded structure of the sound generating device in FIG. 1, which illustrates a first embodiment of a connecting member;
  • FIG. 4 is a schematic cross-sectional structure view of the sound generating device in FIG. 1 along a length direction;
  • FIG. 5 is a partially enlarged view of A in FIG. 4.
  • FIG. 6 is an enlarged schematic view of the right end of the structure in FIG. 4; wherein the first embodiment of the second diaphragm is replaced with the second embodiment of the second diaphragm;
  • FIG. 7 is a schematic cross-sectional structure view of the sound generating device in FIG. 1 along a width direction;
  • FIG. 8 is a schematic diagram of an assembly structure of a magnetic circuit system of the sound generating device in FIG. 1;
  • FIG. 9 is a schematic diagram of an assembly structure of a voice coil, a connecting member, and a second diaphragm of the sound generating device in FIG. 1;
  • FIG. 10 is a schematic structural diagram of a first embodiment of a connecting member of a sound emitting device according to the present invention.
  • FIG. 11 is a schematic structural diagram of a second embodiment of a connecting member of a sounding device according to the present invention.
  • FIG. 12 is a schematic structural diagram of a third embodiment of a connecting member of a sounding device according to the present invention.
  • FIG. 13 is a schematic structural diagram of a fourth embodiment of a connecting member of a sounding device according to the present invention.
  • FIG. 14 is a schematic structural diagram of a fifth embodiment of a connecting member of a sounding device of the present invention.
  • FIG. 15 is a schematic front structural diagram of a portable terminal according to an embodiment of the present invention.
  • FIG. 16 is a schematic structural diagram of a rear surface of the portable terminal in FIG. 15;
  • FIG. 17 is a schematic view of a partial cross-sectional structure at B in FIG. 15.
  • first vibration system 11: first diaphragm; 12: voice coil; 2: second vibration system; 21a, 21b: second diaphragm; 211a, 211b: center portion; 212a, 212b: folded ring portion; 213a, 213b: fixed part; 3: magnetic circuit system; 31: magnetic yoke; 311: long side; 313: short side; 315: first avoidance gap; 32: center magnetic steel; 33: sub magnetic steel; 34: center magnetically permeable plate; 35: side magnetically permeable plate; 36: magnetic gap; 4a-4e: connecting piece; 41a-41e: upper connecting portion; 42a-42e: supporting portion; 421a-421e: avoidance hole; 43a- 43e: lower connecting portion; 411: mounting step; 412: second avoidance gap; 7: housing; 8: front cover; 9: rear cover; 100: portable terminal; 110: housing; 120: receiving cavity; 130: First sound hole; 140: second sound hole; 200: sounding device.
  • fixed may be a fixed connection, a detachable connection, or an integral body; may It is a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction between two elements, unless it is clearly defined otherwise.
  • fixed may be a fixed connection, a detachable connection, or an integral body; may It is a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction between two elements, unless it is clearly defined otherwise.
  • specific meanings of the above terms in the present invention can be understood according to specific situations.
  • the present invention provides a sound generating device 200.
  • the sound generating device 200 includes a first vibration system 1, a second vibration system 2, a magnetic circuit system 3, and a connecting member 4 a.
  • the first vibration system 1 includes a first diaphragm 11 and a voice coil 12 provided inside the first diaphragm 11;
  • the second vibration system 2 includes a second diaphragm (21a, 21b) disposed opposite the first diaphragm 11;
  • the magnetic circuit system 3 is provided between the first diaphragm 11 and the second diaphragm (21a, 21b), and the magnetic circuit system 3 is provided with an avoiding portion.
  • the connecting piece (4a-4e), one end of the connecting piece (4a-4e) is fixedly connected with the voice coil 12, and the other end can move through the avoiding part and be fixedly connected with the second diaphragm (21a, 21b).
  • the position when the first diaphragm 11 of the sound generating device 210 is placed upward is used as a reference to define the upper and lower sides, that is, the side of the first diaphragm 11 facing away from the magnetic circuit system 3 is up, and the first The side of a diaphragm 11 facing the magnetic circuit system 3 is downward.
  • the first vibration system 1 can refer to the existing form. Specifically, the voice coil 12 is fixedly connected to the first diaphragm 11 and extends into the magnetic gap 36. The current flowing through the voice coil 12 changes due to the amperage of different magnitudes. The vibration of the voice coil 12 drives the first diaphragm 11 to vibrate, and its energy conversion mode is electric energy-mechanical energy-acoustic energy. In order to adjust the frequency characteristics of the vibration, the first vibration system 1 may further include a weight.
  • connection between the connecting member (4a-4e) and the first diaphragm 11 or the second diaphragm (21a, 21b) may be glue bonding, injection molding, or other forms of connection.
  • the connecting member (4a-4e) may be connected to the composite portion.
  • the shape of the composite portion may be a flat plate shape, an uneven device, or a dome shape.
  • the material of the connecting member (4a-4e) includes but is not limited to Paper (paper), Kapton (polyimide (PI) film material), foam material, carbon fiber material Metal materials such as aluminum foil / magnesium aluminum alloy / magnesium lithium alloy, PEN (polyethylene naphthalate) / PI (polyimide) / LCP (Liquid Crystal Polymer Polymer) / PC (polycarbonate) / PPA (Polyphthalamide polyphthalamide) and other plastic materials, or porous materials.
  • the processing methods of the connector (4a-4e) include, but are not limited to: winding, blow molding, injection molding, stamping, machining, and 3D printing.
  • the sound generating device 200 further includes a housing 7, a front cover 8, and a rear cover 9, and the housing 7 is used to receive the first vibration System 1, second vibration system 2 and magnetic circuit system 3.
  • the front cover 8 and the rear cover 9 cooperate with the housing 7 to form a protective frame.
  • the edge portion of the first diaphragm 11 for fixing is clamped by the front cover 8 and the housing 7, and the second diaphragm (21a, 21b)
  • the edge portion for fixing is clamped by the back cover 9 and the case 7.
  • the front cover 8 is provided corresponding to the first vibration system 1 and is provided with a front sound emitting hole 81 for emitting sound
  • the rear cover 9 is corresponding to the second vibration system 2 and is provided with a rear sound emitting hole 91 for emitting sound.
  • the sound generating device 200 of the present invention uses two sets of vibration systems and one set of magnetic circuit systems.
  • the voice coil 12 in the first vibration system 1 is fixed to the first diaphragm 11, and the second diaphragm (21a, 21b) It is fixedly connected to the voice coil 12 through the connecting member (4a-4e), and at the same time, an avoiding portion is provided in the magnetic circuit system 3 to cooperate with the connecting member (4a-4e).
  • the effect of the magnetic circuit system 3 on the voice coil 12 directly drives the first diaphragm 11 in the first vibration system 1 to vibrate and make a sound.
  • the connector 4a is driven by the voice coil 12 to drive the second vibration system 2
  • the second diaphragms (21a, 21b) are linked to emit sound simultaneously. Since the present invention can drive two diaphragms to realize bidirectional sound through a voice coil and a magnetic circuit system, the structure occupied by the sounding device 200 between the first diaphragm 11 to the second diaphragm (21a, 21b)
  • the small size can adapt to a relatively small installation space, which is convenient for being widely used in portable terminals.
  • the magnetic circuit system includes a magnetically permeable yoke 31 and a central magnetic circuit portion and a side magnetic circuit portion (both not shown) provided on the magnetic yoke 31; a space is formed between the central magnetic circuit portion and the side magnetic circuit portion.
  • the connecting members (4a-4e) pass through the avoidance portion to connect the second diaphragm (21a, 21b).
  • one end of the connecting member (4a-4e) is connected to the voice coil 12, and the other end can be connected to the second diaphragm (21a, 21b) through the avoidance portion, so that when the voice coil 12 vibrates, the voice coil 12 Not only the first diaphragm 11 can be driven to vibrate, but also the connecting member (4a-4e) can be driven to vibrate, and the second diaphragm (21a, 21b) can be driven to vibrate through the connecting member (4a-4e). 11 Simultaneously with the vibration and sound, the second diaphragm (21a, 21b) is sounded in conjunction with the sound.
  • the form of the magnetic circuit system can also refer to the existing structure.
  • the magnetic gap 36 can be formed between the center magnetic steel 32 and the side magnetic steel 33, or the side walls of the center magnetic steel 32 and the magnetic yoke 31. between.
  • the shape of the center magnetic steel 32 in a plan view may be a circle, a rounded rectangle, or the like.
  • a first acoustic cavity 5 is formed between the magnetic circuit system 3 and the first diaphragm 11
  • a second acoustic cavity 6 is formed between the magnetic circuit system 3 and the second diaphragm (21a, 21b); the avoidance part communicates with the First acoustic cavity 5 and second acoustic cavity 6.
  • the air in the sound generating device 200 can circulate with each other, and the first sound cavity
  • the air pressure difference between 5 and the second acoustic cavity 6 is small, and the resistance caused to the vibration of the first diaphragm 11 and the second diaphragm (21a, 21b) is also relatively small, so that better acoustic performance can be achieved.
  • the magnetic yoke 31 includes two opposite long sides 311 and two short sides 313, and the long sides 311 are spaced from the short sides 313.
  • the central magnetic circuit portion is located in the middle of the magnetic yoke 31, and the side magnetic circuit portion is located on opposite sides of the central magnetic circuit portion and extends along the long side 311.
  • the magnetic yoke 31 is provided with a first avoidance corresponding to the position of each short side 313.
  • the notch 315 forms an avoidance portion.
  • the magnetic yoke 31 of the present invention has an approximately rectangular shape as a whole, and the central magnetic circuit portion and the side magnetic circuit portion are elongated.
  • the central magnetic circuit portion specifically includes the central magnetic steel 32 and a center covering the central magnetic steel 32.
  • the magnetically permeable plate 34, the side magnetic circuit part includes the sub magnetic steel 33 and the side magnetic conductive plate 35 mounted on the sub magnetic steel 33, and the voice coil 12 is also enclosed in an approximately rectangular parallelepiped shape with chamfers, two side magnetic circuits and one
  • the central magnetic circuit part constitutes a three magnetic circuit system, and first short-circuit avoidance notches 315 are formed at both short sides 313 of the magnetic yoke 31 to form an escape portion, and each first avoidance notch 315 is movable to provide a connection.
  • the diaphragm (21a, 21b), the second diaphragm (21a, 21b) is more uniformly stressed, the consistency of the synchronous movement with the first diaphragm 11 is higher, and the sound quality of the two-way sound of the sound emitting device 200 is better.
  • the avoidance portion shown in the drawings of the present invention is notch-shaped. In other embodiments, the avoidance portion may also be a hole-like structure provided at the two short sides 313 through which the connecting member 4a can pass. It can be understood that the above-mentioned two-way sound generating structure of the present invention can also be applied to a single magnetic circuit system.
  • the connecting member includes an upper connecting portion (41a-41e) and a lower connecting portion (43a-43e) which are arranged opposite to each other.
  • the supporting portion (42a-42e) connected between the upper connecting portion (41a-41e) and the lower connecting portion (43a-43e), the upper connecting portion (41a-41e) and the lower connecting portion (43a-43e) are short
  • the side 313 extends, that is, it is elongated in the direction perpendicular to the up and down vibration of the diaphragm.
  • the upper connecting portion (41a-41e) is fixedly connected to the voice coil 12, and the lower connecting portion (43a-43e) and the second The diaphragms (21a, 21b) are fixedly connected.
  • the upper connecting portion (41a-41e) of the present invention is formed with a mounting step 411, and the lower end of the voice coil 12 and the mounting
  • the step wall surface of the step 411 is fixedly connected.
  • the mounting step 411 of the present invention has two step wall surfaces arranged at an included angle. During the assembly process of the connecting member (4a-4e) and the voice coil 12, the mounting step 411 can not only limit the connecting member (4a-4e) during the assembly process. After the assembly is completed, the connecting members (4a-4e) and the lower end of the voice coil 12 have two connecting surfaces, so that the connecting structure is more firm and not easy to loosen.
  • the present invention provides at least one avoidance hole (421a- 421e).
  • the avoidance hole is one and is a round hole
  • the avoidance hole is one and is a square hole
  • the avoidance holes are provided at two intervals and are square holes or round holes or elliptical holes. It can be understood that by providing the avoidance holes (421a-421e), the connecting member ( 4a-4e), as the airflow in the first avoidance gap 315 can pass through the avoidance holes (421a-421e), it can further ensure that the pressure difference between the first acoustic cavity 5 and the second acoustic cavity 6 is small.
  • the resistance to the vibration of the first diaphragm 11 and the second diaphragm (21a, 21b) is also relatively small, so that better acoustic performance can be achieved.
  • avoidance holes there may be three, four, etc. avoidance holes, and other shapes include other shapes.
  • the present invention does not limit the number and shape of the avoidance holes.
  • the upper connecting portion 41c is further provided with a second avoidance gap 412, which is located on the mounting step 411 of the upper connecting portion 41c away from the support portion 42c.
  • a second avoidance gap 412 which is located on the mounting step 411 of the upper connecting portion 41c away from the support portion 42c.
  • One end penetrates in the thickness direction of the step wall surface away from the support portion 42c, that is, the step wall surface of the mounting step 411 penetrates in the thickness direction of the upper connection portion 41c.
  • the function of the second avoidance gap 412 is the same as that of the above-mentioned avoidance hole, and will not be repeated here.
  • the connecting member may be a plastic material or a metal material.
  • the connecting member has a certain wall thickness in order to have sufficient structural strength.
  • the connecting member can be made thin, such as the fourth embodiment of the connecting member shown in FIG. 13, so that the volume of the entire sounding device 200 can be further reduced.
  • the lower connecting portion (43a-43e) is further protruded and extended to one side of the supporting portion (42a-42e) and An angle is formed with the support portions (42a-42e), and the lower surface of the lower connection portion (43a-43e) is fixedly connected with the second diaphragm (21a, 21b).
  • the lower connecting portion (43a-43e) By protruding and extending the lower connecting portion (43a-43e) to one side of the supporting portion (42a-42e), the lower surface of the lower connecting portion (43a-43e) is further enlarged, so that the connecting piece (4a-4e) and the second The diaphragms 21a, 21b) have a larger connection area.
  • the glue when used for bonding, the larger the area of the glue attached to the connecting member (4a-4e), the greater the adhesive force, and the same is true for integral injection molding or welding.
  • the second diaphragm (21a, 21b) includes a central portion (211a, 211b), a folding ring portion (212a, 212b) provided around the central portion (211a, 211b), and a surrounding folding portion
  • the central portion (211a, 211b) is a flat sheet structure
  • the ring portion is folded 212a is a structure composed of one protrusion
  • the folded ring portion 212b is a wavy structure composed of at least one protrusion and at least one depression.
  • the central portions (211a, 211b) are used to bear the force of the connecting members (4a-4e) and then radiate with the vibration, that is, the radiated sound of linkage radiation.
  • the central portions (211a, 211b) are set into a flat sheet shape Structure, so that the second diaphragm (21a, 21b) occupies less space in the vertical direction, and the lower surface of the lower connection portion (43a-43e) and the central portion (211a, 211b) have a larger contact area, and the connection structure It is stable at the same time and can generate enough amplitude.
  • the second diaphragm (21a, 21b) further includes a composite layer (not labeled) coupled to the central portion (211a, 211b), the lower end of the connecting member (4a-4e) and the composite layer or the central portion (211a, 211b) ) Fixed connection.
  • Providing the composite layer can increase the rigidity of the second diaphragm 21c and ensure the high-frequency performance of the second diaphragm (21a, 21b).
  • the composite layer is made of a material with a higher specific modulus, for example, aluminum composite material, aluminum, aluminum-magnesium alloy, magnesium-lithium alloy material, carbon fiber , PEN (polyethylene naphthalate), LCP (Liquid Crystal Polymer), foam, etc.
  • the first diaphragm 11 includes a central portion, a folded ring portion provided around the central portion, and a fixed portion provided around the folded ring portion.
  • the central portion of the first diaphragm 11 is a planar sheet structure.
  • the folded ring portion is a structure composed of one protrusion, or the folded ring portion is a wavy structure composed of at least one protrusion and at least one depression.
  • the central portion of the first diaphragm 11 is a flat sheet-like structure, the space occupied by the first diaphragm 11 in the up-down direction is small, and a sufficiently large amplitude can be generated.
  • the sound generating device body provided by the present invention forms a thin structure in the up-down direction as a whole, so that it is easier to apply to a flat installation space.
  • the present invention further provides a portable terminal 100 including a housing 110 having a receiving cavity 120 therein.
  • the portable terminal 100 further includes a sound emitting device 210, and a specific structure of the sound emitting device 210.
  • the sound generating device 210 is installed in the accommodating cavity 120.
  • the housing 110 is provided with a first sound hole 130 corresponding to the first diaphragm 11 and a second sound hole 140 corresponding to the second diaphragm (21a, 21b).
  • the first sound hole 130 is opened at a position of the casing 110 directly opposite the first diaphragm 11, and the second sound hole 140 is opened at the housing 110. Is directly opposite the second diaphragm (21a, 21b).
  • the housing 110 includes a front surface and a rear surface opposite to each other, the first sound hole 130 is disposed on the front surface, and the second sound hole 140 is disposed on the reverse surface.

Abstract

本发明公开一种发声器件和便携终端，其中发声器件包括：第一振动系统，包括第一振膜及设于第一振膜内侧的音圈，音圈与所述第一振膜固定连接；第二振动系统，包括与第一振膜相对设置的第二振膜；磁路系统，设于第一振膜及第二振膜之间，所述磁路系统设有避让部；以及，连接件，所述连接件的一端与所述音圈固定连接，另一端可活动穿过所述避让部并与所述第二振膜固定连接。本发明发声器件实现双向发声的结构占用的体积小，便于广泛应用于便携终端。

Description

发声器件和便携终端 技术领域
本发明涉及电声技术领域，特别涉及一种发声器件及应用该发声器件的便携终端。
背景技术
目前，扬声器作为具有音频播放功能的终端的重要部件，已得到广泛应用。一些终端，尤其是便携终端，如手机、平板电脑、耳机能够为扬声器提供的安装空间非常有限，因此，现有的能够应用于狭小安装空间的扬声器，通常采用单个振膜正面发声的结构。
而为了实现双向发声，现有技术出现了采用两套音圈及磁路系统的扬声器，这种扬声器由于其自身结构设计，其通常体积比较大，对于现有的具有狭小安装空间的便携终端来说，此类扬声器设计难以得到广泛应用。
发明内容
本发明的主要目的是提出一种发声器件，旨在解决现有的实现双向发声的发声器件因体积较大而难以广泛应用的技术问题。
为实现上述目的，本发明提出的发声器件，包括：
第一振动系统，包括第一振膜及设于所述第一振膜内侧的音圈，所述音圈与所述第一振膜固定连接；
第二振动系统，包括与所述第一振膜相对设置的第二振膜；
磁路系统，设于所述第一振膜及第二振膜之间，所述磁路系统设有避让部；以及，
连接件，所述连接件的一端与所述音圈固定连接，另一端可活动穿过所述避让部并与所述第二振膜固定连接。
可选地，所述磁路系统包括导磁轭和设于所述导磁轭上的中心磁路部分和边磁路部分，所述中心磁路部分和所述边磁路部分中的至少一个设有永磁 体，所述中心磁路部分和边磁路部分之间形成容纳所述音圈的磁间隙；所述导磁轭对应所述音圈的位置还开设有所述避让部。
可选地，所述磁路系统与所述第一振膜之间形成第一声腔，所述磁路系统与所述第二振膜之间形成第二声腔，所述避让部连通所述第一声腔和第二声腔。
可选地，所述导磁轭包括两相对设置的长侧边以及两短侧边，所述长侧边与所述短侧边间隔设置，所述中心磁路部分位于所述导磁轭中部，所述边磁路部分位于所述中心磁路部分的相对两侧并沿所述长侧边延伸，所述导磁轭对应每一所述短侧边的位置开设有第一避让缺口形成所述避让部。
可选地，所述连接件包括上下相对设置的上连接部及下连接部，以及连接在上连接部及下连接部之间的支撑部，所述上连接部及下连接部沿所述短侧边延伸呈长条状，所述上连接部与所述音圈固定连接，所述下连接部与所述第二振膜固定连接。
可选地，所述上连接部形成有安装台阶，所述音圈的下端与所述安装台阶的台阶壁面固定连接。
可选地，所述上连接部还开设有第二避让缺口，所述第二避让缺口位于所述安装台阶的远离所述支撑部的台阶壁面，并沿所述远离所述支撑部的台阶壁面的厚度方向贯通。
可选地，所述支撑部开设有至少一个于其厚度方向贯通的避让孔。
可选地，所述下连接部向所述支撑部的一侧凸设延伸并与所述支撑部构成夹角，所述下连接部的下表面与所述第二振膜固定连接。
可选地，所述连接件为塑料材质或者金属材质。
可选地，所述第一振膜包括中心部、围绕中心部设置的折环部以及围绕折环部设置的固定部，所述第一振膜的中心部为平面片状结构，所述折环部为由一个凸起构成的结构，或者所述折环部为由至少一个凸起和至少一个凹陷构成的波浪形结构。
可选地，所述第二振膜包括中心部、围绕中心部设置的折环部以及围绕折环部设置的固定部；所述中心部为平面片状结构，所述折环部为由一个凸起构成的结构，或者所述折环部为由至少一个凸起和至少一个凹陷构成的波浪形结构。
本发明还提出便携终端，包括壳体，所述壳体内部具有容置腔，所述便携终端还包括如上所述的发声器件，所述发声器件安装在所述容置腔，所述壳体开设有对应所述第一振膜的第一声孔，以及对应所述第二振膜的第二声孔。
可选地，所述壳体包括相对设置的正面和反面，所述第一声孔设置在所述正面上，所述第二声孔设置在所述反面上。
本发明发声器件采用两套振动系统和一套磁路系统，第一振动系统中的音圈与第一振膜固定，而第二振动系统中的第二振膜通过连接件与音圈固定连接，同时在磁路系统中的导磁轭设计有与连接件配合的避让部，如此，在发声器件工作时，先由磁路系统对音圈的作用直接驱动第一振动系统中的第一振膜振动进而发声，与此同时，连接件在音圈的带动下驱动第二振动系统中的第二振膜联动以同时发声。由于本发明通过一个音圈和一套磁路系统即可驱动两个振膜实现双向发声，使得发声器件在第一振膜至第二振膜之间的结构占用的体积小，能够适应较为狭小的安装空间，便于广泛应用于便携终端。
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为本发明发声器件一实施例的正面结构示意图；
图2为图1中发声器件的背面结构示意图；
图3为图1中发声器件的爆炸结构示意图，其中示意了连接件的第一实施例；
图4为图1中发声器件沿长度方向的剖面结构示意图；
图5为图4中A处的局部放大图。
图6为图4中结构的右端放大示意图；其中第二振膜的第一实施例被替换为第二振膜的第二实施例；
图7为图1中发声器件沿宽度方向的剖面结构示意图；
图8为图1中发声器件的磁路系统的装配结构示意图；
图9为图1中发声器件的音圈、连接件以及第二振膜的装配结构示意图；
图10为本发明发声器件的连接件的第一实施例的结构示意图；
图11为本发明发声器件的连接件的第二实施例的结构示意图；
图12为本发明发声器件的连接件的第三实施例的结构示意图；
图13为本发明发声器件的连接件的第四实施例的结构示意图；
图14为本发明发声器件的连接件的第五实施例的结构示意图；
图15为本发明便携终端一实施例的正面结构示意图；
图16为图15中便携终端的背面结构示意图；
图17为图15中B处的局部剖面结构示意图。
附图标号说明：
1：第一振动系统；11：第一振膜；12：音圈；2：第二振动系统；21a，21b：第二振膜；211a，211b：中心部；212a，212b：折环部；213a，213b：固定部；3：磁路系统；31：导磁轭；311：长侧边；313：短侧边；315：第一避让缺口；32：中心磁钢；33：子磁钢；34：中心导磁板；35：边导磁板；36：磁间隙；4a-4e：连接件；41a-41e：上连接部；42a-42e：支撑部；421a-421e：避让孔；43a-43e：下连接部；411：安装台阶；412：第二避让缺口；7：外壳；8：前盖；9：后盖；100：便携终端；110：壳体；120：容置腔；130：第一声孔；140：第二声孔；200：发声器件。
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。
在本发明中，除非另有明确的规定和限定，术语“连接”、“固定”等应做广义理解，例如，“固定”可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
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。
本发明提出一种发声器件200。
在本发明实施例中，如图1至图7所示，该发声器件200包括第一振动系统1、第二振动系统2、磁路系统3及连接件4a，其中，
第一振动系统1包括第一振膜11及设于第一振膜11内侧的音圈12；第二振动系统2包括与第一振膜11相对设置的第二振膜(21a，21b)；
磁路系统3，设于第一振膜11及第二振膜(21a，21b)之间，所述磁路系统3设有避让部。
连接件(4a-4e)，连接件(4a-4e)的一端与音圈12固定连接，另一端可活动穿过避让部并与第二振膜(21a，21b)固定连接。
在本实施例中，为了简化描述，将发声器件210的第一振膜11朝上放置时的位置为参考界定上下，即第一振膜11背向磁路系统3的一侧为上，第一振膜11朝向磁路系统3的一侧为下。
第一振动系统1可以参考现有的形式，具体的，音圈12与第一振膜11固定连接并伸入磁间隙36，音圈12连通变化的电流则受到不同大小的安培力而振动，音圈12振动带动第一振膜11振动，其能量变换方式是电能—机械 能—声能。为了调整振动的频率特性，第一振动系统1还可包括配重块。
连接件(4a-4e)与第一振膜11或第二振膜(21a，21b)之间的连接，可以是胶水粘接，或注塑一体成型连接，或其他形式的连接。在第一振膜11及第二振膜(21a，21b)设置有复合部即dome的实施例中，连接件(4a-4e)可以与复合部连接。复合部的形状可以为平板状，凹凸纹的装置，或球顶状等。为了在保证强度的前提下降低部件的重量，连接件(4a-4e)的材质包括但不限于Paper(纸质)、Kapton(聚酰亚胺(PI)薄膜材料)、发泡材料、碳纤维材料、铝箔/镁铝合金/镁锂合金等金属材料、PEN(聚萘二甲酸乙二醇酯)/PI(聚酰亚胺)/LCP(Liquid Crystal Polymer液晶聚合物)/PC(聚碳酸酯)/PPA(Polyphthalamide聚邻苯二甲酰胺)等塑性材料、或多孔材料等。连接件(4a-4e)的加工方式包含但不限于：绕制、吹塑、注塑、冲压、机加工、3D打印。
为了方便安装第一振动系统1、第二振动系统2及位于两者之间的磁路系统3，发声器件200还包括外壳7、前盖8及后盖9，外壳7用于收容第一振动系统1、第二振动系统2及磁路系统3。前盖8及后盖9与外壳7配合形成保护框架，具体地，第一振膜11的用于固定的边缘部由前盖8与外壳7夹持，第二振膜(21a，21b)的用于固定的边缘部由后盖9与外壳7夹持。前盖8对应第一振动系统1设置并设有供声音出射的前出声孔81，后盖9对应第二振动系统2并设有供声音出射的后出声孔91。
本发明发声器件200采用两套振动系统和一套磁路系统，第一振动系统1中的音圈12与第一振膜11固定，而第二振动系统2中的第二振膜(21a，21b)通过连接件(4a-4e)与音圈12固定连接，同时在磁路系统3中设计有与连接件(4a-4e)配合的避让部，如此，在发声器件200工作时，先由磁路系统3对音圈12的作用直接驱动第一振动系统1中的第一振膜11振动进而发声，与此同时，连接件4a在音圈12的带动下驱动第二振动系统2中的第二振膜(21a，21b)联动以同时发声。由于本发明通过一个音圈和一套磁路系统即可驱动两个振膜实现双向发声，使得发声器件200在第一振膜11至第二振膜(21a，21b)之间的结构占用的体积小，能够适应较为狭小的安装空间，便于广泛应用于便携终端。
进一步的，磁路系统包括导磁轭31和设于导磁轭31上的中心磁路部分 和边路磁路部分(均未标示)；中心磁路部分和边路磁路部分之间形成容纳音圈12的磁间隙36，中心磁路部分和边磁路部分中的至少一个永磁体；音圈12收容于磁路系统3的磁间隙36中，导磁轭31对应音圈12的位置开设有所述避让部，此时连接件(4a-4e)穿过避让部连接第二振膜(21a，21b)。这样一来，连接件(4a-4e)的一端与音圈12连接，另一端可以穿过避让部与第二振膜(21a，21b)连接，从而可以在音圈12振动时，音圈12不仅可以驱动第一振膜11振动，还可以带动连接件(4a-4e)振动，进而通过连接件(4a-4e)驱动第二振膜(21a，21b)振动，实现了在第一振膜11振动发声的同时，使第二振膜(21a，21b)联动发声。
其中，磁路系统的形式也可以参考现有的结构，例如磁间隙36既可以形成在中心磁钢32与边磁钢33之间，也可以形成中心磁钢32与导磁轭31的侧壁之间。中心磁钢32的俯视形状既可以为圆形也可以为圆角矩形等。
进一步的，磁路系统3与第一振膜11之间形成第一声腔5，磁路系统3与第二振膜(21a，21b)之间形成第二声腔6；所述避让部连通所述第一声腔5和第二声腔6。这样在第一振膜11与第二振膜(21a，21b)联动发声的同时，由于避让部连通第一声腔5与第二声腔6，使得发声器件200内的空气得以相互流通，第一声腔5与第二声腔6的气压差较小，给第一振膜11与第二振膜(21a，21b)的振动造成的阻力也相对较小，从而可以实现更优的声学性能。
请结合参照图3和图8，所述导磁轭31包括两相对设置的长侧边311以及两短侧边313，长侧边311与短侧边313间隔设置。中心磁路部分位于导磁轭31中部，边磁路部分位于中心磁路部分的相对两侧并沿长侧边311延伸，导磁轭31对应每一短侧边313的位置开设有第一避让缺口315以形成避让部。
具体的，本发明的导磁轭31整体呈近似长方形状，中心磁路部分和边磁路部分呈长条状，中心磁路部分具体包括中心磁钢32和覆盖在中心磁钢32上的中心导磁板34，边磁路部分包括子磁钢33和安装在子磁钢33上的边导磁板35，音圈12也围成具有倒角的近似长方体形状，两个边磁路和一个中心磁路部分构成三磁路系统，并且在导磁轭31的两短侧边313处均开设有第一避让缺口315形成避让部，每一第一避让缺口315处均活动穿设有一个连接件4a，两个连接件4a分别对应连接音圈12的短边侧，如此在发声器件200工作过程中，音圈12的相对两短边侧通过连接件(4a-4e)同时作用于第二振 膜(21a，21b)，则第二振膜(21a，21b)受力较为均匀，与第一振膜11同步运动的一致性更高，发声器件200双向发声的音质更佳。本发明附图展示的避让部为缺口状，于其他实施例，避让部也可以是设置在两短侧边313处可供连接件4a穿过的孔状结构。可以理解的，本发明上述的双向发声结构也可以运用到单磁路系统中。
进一步的，请结合参照图10至图14，在连接件的第一至第五实施例中，连接件包括上下相对设置的上连接部(41a-41e)及下连接部(43a-43e)，以及连接在上连接部(41a-41e)及下连接部(43a-43e)之间的支撑部(42a-42e)，上连接部(41a-41e)及下连接部(43a-43e)沿短侧边313延伸，即为均沿垂直于振膜上下振动的方向延伸而呈长条状，上连接部(41a-41e)与音圈12固定连接，下连接部(43a-43e)与第二振膜(21a，21b)固定连接。
为了使连接件(4a-4e)与音圈12连接结构更稳固，请结合参照图9和图10，本发明上连接部(41a-41e)形成有安装台阶411，音圈12的下端与安装台阶411的台阶壁面固定连接。本发明安装台阶411具有两个呈夹角设置的台阶壁面，在连接件(4a-4e)与音圈12装配过程，安装台阶411不仅可以在装配过程中对连接件(4a-4e)进行限位，在装配完成后，连接件(4a-4e)与音圈12的下端具有两处连接面，如此连接结构更牢固不易松脱。
进一步地，为了减轻连接件(4a-4e)的重量，保证第二振膜的驱动力，本发明在支撑部(42a-42e)上开设有至少一个在其厚度方向贯通的避让孔(421a-421e)。
具体地，在连接件的第一实施例中，避让孔为一个并且为圆孔，第二实施例中，避让孔为一个并且为方孔。在第三至第五实施例中，避让孔为间隔设置有两个并且为方孔或者圆孔或者椭圆孔，可以理解的是，通过避让孔(421a-421e)的设置，在减轻连接件(4a-4e)的重量的同时，由于在第一避让缺口315中的气流可以由避让孔(421a-421e)穿过，则可以进一步确保第一声腔5与第二声腔6的气压差较小，给第一振膜11与第二振膜(21a，21b)的振动造成的阻力也相对较小，从而可以实现更优的声学性能。
需要说明的是，避让孔还可以三个，四个等，其他形状还包括其他形状，本发明对避让孔的个数及形状不做限制。
进一步地，请参照图12，在连接件的第三实施例中，上连接部41c还开 设有第二避让缺口412，第二避让缺口412位于上连接部41c的安装台阶411远离支撑部42c的一端，并沿远离支撑部42c的台阶壁面的厚度方向贯通，即为在上连接部41c的厚度方向贯通安装台阶411的台阶壁面。第二避让缺口412的设置所起的作用与上述的避让孔的相同，再此不再赘述。
进一步地，请结合参照13和图14，，有上面的内容了解到，连接件可以是塑料材质或者金属材质，当其是塑料材质时，连接件为了具有足够的结构强度，其具有一定壁厚，而当其是金属材质，例如合金材质时，连接件可以做得较薄，例如附图13所展示的连接件的第四实施例，这样则可以进一步减小整个发声器件200的体积。
本发明为了实现连接件(4a-4e)与第二振膜(21a，21b)连接较为稳固，下连接部(43a-43e)进一步地向支撑部(42a-42e)的一侧凸设延伸并与支撑部(42a-42e)构成夹角，下连接部(43a-43e)的下表面与第二振膜(21a，21b)固定连接。通过将下连接部(43a-43e)向支撑部(42a-42e)的一侧凸设延伸，使得下连接部43a-43e)的下表面进一步扩大，如此连接件(4a-4e)与第二振膜21a，21b)具有更大的连接面积，例如，采用胶水粘接时，胶水贴合在连接件(4a-4e)附着面积越大粘接力越大，一体注塑成型或焊接同样如此。
进一步地，请参照图6和图7，第二振膜(21a，21b)包括中心部(211a，211b)、围绕中心部(211a，211b)设置的折环部(212a，212b)以及围绕折环部(212a，212b)设置的固定部(213a，213b)；所述中心部(211a，211b)为平面片状结构，在第二振膜的第一及第二实施例中，折环部212a为由一个凸起构成的结构，或者折环部212b为由至少一个凸起和至少一个凹陷构成的波浪形结构。
在本实施例中，中心部(211a，211b)用以承受连接件(4a-4e)的作用力并随之振动发声即联动辐射发声，通过将中心部(211a，211b)设置为平面片状结构，如此第二振膜(21a，21b)在上下方向上占用的空间较小，下连接部(43a-43e)的下表面与中心部(211a，211b)具有更大的接触面积，连接结构稳固的同时并且可以产生足够大的振幅。
进一步地，第二振膜(21a，21b)还包括结合于中心部(211a，211b)的复合层(未标示)，连接件(4a-4e)的下端与复合层或中心部(211a，211b)固定连接。设置复合层可以增加第二振膜21c的刚性，保证第二振膜(21a，21b) 的高频性能。
优选地，为了保证被动辐射的第二振膜(21a，21b)发声性能更优，复合层采用比模量高的材质，例如，铝复合材质，铝，铝镁合金，镁锂合金材质，碳纤维，PEN(聚萘二甲酸乙二醇酯)，LCP(Liquid Crystal Polymer液晶聚合物)，发泡体等。
进一步地，所述第一振膜11包括中心部、围绕中心部设置的折环部以及围绕折环部设置的固定部，所述第一振膜11的中心部为平面片状结构，在第一振膜11的第一及第二实施例中，折环部为由一个凸起构成的结构，或者折环部为由至少一个凸起和至少一个凹陷构成的波浪形结构。相似地，通过将第一振膜11中心部设置为平面片状结构，如此第一振膜11在上下方向上占用的空间较小，并且可以产生足够大的振幅。在结合第二振膜(21a，21b)的中心部也设置为片状结构的实施例后，本发明提供的发声器件体整体上形成上下方向较薄结构，如此，更易于应用在扁状安装空间。
请参照图15至图17，本发明还提出一种便携终端100，包括壳体110，壳体110内部具有容置腔120，该便携终端100还包括发声器件210，该发声器件210的具体结构参照上述实施例，由于本便携终端100采用了上述所有实施例的全部技术方案，因此至少具有上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。发声器件210安装在容置腔120，壳体110开设有对应第一振膜11的第一声孔130，以及对应第二振膜(21a，21b)的第二声孔140。优选地，为了缩短壳体110内部声音的传播路径，减少声阻，第一声孔130开设于壳体110的与第一振膜11正对的位置，第二声孔140开设于壳体110的与第二振膜(21a，21b)正对的位置。
进一步的，壳体110包括相对设置的正面和反面，第一声孔设置130在正面上，第二声孔140设置在反面上。
以上所述仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是在本发明的发明构思下，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 (14)

  1. 一种发声器件，其特征在于，包括：
    第一振动系统，包括第一振膜及设于所述第一振膜内侧的音圈，所述音圈与所述第一振膜固定连接；
    第二振动系统，包括与所述第一振膜相对设置的第二振膜；
    磁路系统，设于所述第一振膜及第二振膜之间，所述磁路系统设有避让部；以及，
    连接件，所述连接件的一端与所述音圈固定连接，另一端可活动穿过所述避让部并与所述第二振膜固定连接。
  2. 如权利要求1所述的发声器件，其特征在于，所述磁路系统包括导磁轭和设于所述导磁轭上的中心磁路部分和边磁路部分，所述中心磁路部分和所述边磁路部分中的至少一个设有永磁体，所述中心磁路部分和边磁路部分之间形成容纳所述音圈的磁间隙；所述导磁轭对应所述音圈的位置开设有所述避让部。
  3. 如权利要求1所述的发声器件，其特征在于，所述磁路系统与所述第一振膜之间形成第一声腔，所述磁路系统与所述第二振膜之间形成第二声腔，所述避让部连通所述第一声腔和第二声腔。
  4. 如权利要求2所述的发声器件，其特征在于，所述导磁轭包括两相对设置的长侧边以及两短侧边，所述长侧边与所述短侧边间隔设置，所述中心磁路部分位于所述导磁轭中部，所述边磁路部分位于所述中心磁路部分的相对两侧并沿所述长侧边延伸，所述导磁轭对应每一所述短侧边的位置开设有第一避让缺口形成所述避让部。
  5. 如权利要求1所述的发声器件，其特征在于，所述连接件包括上下相对设置的上连接部及下连接部，以及连接在上连接部及下连接部之间的支撑 部，所述上连接部及下连接部沿所述短侧边延伸呈长条状，所述上连接部与所述音圈固定连接，所述下连接部与所述第二振膜固定连接。
  6. 如权利要求5所述的发声器件，其特征在于，所述上连接部形成有安装台阶，所述音圈的下端与所述安装台阶的台阶壁面固定连接。
  7. 如权利要求6所述的发声器件，其特征在于，所述上连接部还开设有第二避让缺口，所述第二避让缺口位于所述安装台阶的远离所述支撑部的台阶壁面，并沿所述远离所述支撑部的台阶壁面的厚度方向贯通。
  8. 如权利要求5所述的发声器件，其特征在于，所述支撑部开设有至少一个在其厚度方向贯通的避让孔。
  9. 如权利要求5所述的发声器件，其特征在于，所述下连接部向所述支撑部的一侧凸设延伸并与所述支撑部构成夹角，所述下连接部的下表面与所述第二振膜固定连接。
  10. 如权利要求1至9中任意一项所述的发声器件，其特征在于，所述连接件为塑料材质或者金属材质。
  11. 如权利要求1所述的发声器件，其特征在于，所述第一振膜包括中心部、围绕中心部设置的折环部以及围绕折环部设置的固定部，所述第一振膜的中心部为平面片状结构，所述折环部为由一个凸起构成的结构，或者所述折环部为由至少一个凸起和至少一个凹陷构成的波浪形结构。
  12. 如权利要求1所述的发声器件，其特征在于，所述第二振膜包括中心部、围绕中心部设置的折环部以及围绕折环部设置的固定部；所述中心部为平面片状结构，所述折环部为由一个凸起构成的结构，或者所述折环部为由至少一个凸起和至少一个凹陷构成的波浪形结构。
  13. 一种便携终端，包括壳体，所述壳体内部具有容置腔，其特征在于，所述便携终端还包括如权利要求1至12中任意一项所述发声器件，所述发声器件安装在所述容置腔，所述壳体开设有对应所述第一振膜的第一声孔，以及对应所述第二振膜的第二声孔。
  14. 如权利要求13所述的便携终端，其特征在于，所述壳体包括相对设置的正面和反面，所述第一声孔设置在所述正面上，所述第二声孔设置在所述反面上。
PCT/CN2018/121129 2018-06-25 2018-12-14 发声器件和便携终端 WO2020000926A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810667261.7 2018-06-25
CN201810667261.7A CN108882123B (zh) 2018-06-25 2018-06-25 发声器件和便携终端

Publications (1)

Publication Number Publication Date
WO2020000926A1 true WO2020000926A1 (zh) 2020-01-02

Family

ID=64295620

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/121129 WO2020000926A1 (zh) 2018-06-25 2018-12-14 发声器件和便携终端

Country Status (2)

Country Link
CN (1) CN108882123B (zh)
WO (1) WO2020000926A1 (zh)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108882123B (zh) * 2018-06-25 2020-05-22 歌尔股份有限公司 发声器件和便携终端
CN111698620A (zh) * 2019-03-14 2020-09-22 歌尔股份有限公司 一种电子设备
CN110401903A (zh) * 2019-06-26 2019-11-01 瑞声光电科技(常州)有限公司 发声器件
CN113225501B (zh) * 2020-02-06 2022-02-08 海信视像科技股份有限公司 显示装置和扬声器
CN112839284B (zh) * 2020-12-31 2023-01-20 歌尔股份有限公司 发声单体和耳机
CN114125665A (zh) * 2021-12-21 2022-03-01 国英电子(惠州)有限公司 双音双膜气动高音喇叭

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102333259A (zh) * 2011-07-14 2012-01-25 瑞声声学科技(深圳)有限公司 耳机
CN105681983A (zh) * 2016-01-12 2016-06-15 瑞声光电科技(常州)有限公司 扬声器
US20170272866A1 (en) * 2016-03-18 2017-09-21 Dolby International Ab Force Balanced Micro Transducer Array
CN206894886U (zh) * 2017-04-14 2018-01-16 瑞声光电科技(常州)有限公司 微型发声器
CN108882123A (zh) * 2018-06-25 2018-11-23 歌尔股份有限公司 发声器件和便携终端

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012105021A (ja) * 2010-11-09 2012-05-31 Sony Corp スピーカー装置
CN104811875A (zh) * 2015-04-29 2015-07-29 朝阳聚声泰（信丰）科技有限公司 一种双向扬声器
KR101728541B1 (ko) * 2015-08-07 2017-04-19 부전전자 주식회사 선형음향 변환장치
WO2017029768A1 (ja) * 2015-08-20 2017-02-23 Ｎｅｃトーキン株式会社 振動伝達構造、及び圧電スピーカ
CN205847559U (zh) * 2016-05-26 2016-12-28 瑞声科技(新加坡)有限公司 微型发声器
CN205793307U (zh) * 2016-05-31 2016-12-07 歌尔股份有限公司 扬声器
CN106231508B (zh) * 2016-08-30 2019-12-13 歌尔股份有限公司 一种振膜
CN106604187A (zh) * 2017-01-06 2017-04-26 苏州新吴光电科技有限公司 一种具有双振膜的受话器
CN206775731U (zh) * 2017-04-10 2017-12-19 歌尔科技有限公司 一种扬声器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102333259A (zh) * 2011-07-14 2012-01-25 瑞声声学科技(深圳)有限公司 耳机
CN105681983A (zh) * 2016-01-12 2016-06-15 瑞声光电科技(常州)有限公司 扬声器
US20170272866A1 (en) * 2016-03-18 2017-09-21 Dolby International Ab Force Balanced Micro Transducer Array
CN206894886U (zh) * 2017-04-14 2018-01-16 瑞声光电科技(常州)有限公司 微型发声器
CN108882123A (zh) * 2018-06-25 2018-11-23 歌尔股份有限公司 发声器件和便携终端

Also Published As

Publication number Publication date
CN108882123A (zh) 2018-11-23
CN108882123B (zh) 2020-05-22

Similar Documents

Publication Publication Date Title
WO2020000930A1 (zh) 发声器件和便携终端
WO2020000926A1 (zh) 发声器件和便携终端
CN108632729B (zh) 发声器件及便携终端
WO2020001229A1 (zh) 扬声器及便携终端
JP3197924U (ja) 圧電セラミックデュアル周波数イヤホン構造
US11477577B2 (en) Sounding device and portable terminal
CN216775010U (zh) 发声装置和电子设备
US8774448B2 (en) Speaker with elastic plate coupled to diaphragm
TWI406575B (zh) 微型喇叭
WO2020173395A1 (zh) 扬声器、扬声器组件及便携式电子设备
CN108924709B (zh) 发声器件及便携终端
WO2020000987A1 (zh) 发声器件及便携终端
WO2020000809A1 (zh) 扬声器及便携终端
WO2022143027A1 (zh) 扬声器和电子终端
CN212696206U (zh) 扬声器单体和电子终端
CN115529538A (zh) 微型扬声器和用于微型扬声器的弹波
CN117221798A (zh) 微型扬声器和声学装置
CN216122887U (zh) 发声装置和电子设备
CN208386925U (zh) 便携终端
WO2024022484A1 (zh) 发声装置和终端设备
US20120308070A1 (en) Slim type speaker and magnetic circuit therefor
CN213754942U (zh) 一种发声器
CN108696806B (zh) 扬声器及便携终端
CN212696205U (zh) 扬声器单体和电子终端
CN114257919A (zh) 发声装置和电子设备

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18924704

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18924704

Country of ref document: EP

Kind code of ref document: A1