WO2021022774A1 - 扬声器和音频装置 - Google Patents

扬声器和音频装置 Download PDF

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Publication number
WO2021022774A1
WO2021022774A1 PCT/CN2019/129007 CN2019129007W WO2021022774A1 WO 2021022774 A1 WO2021022774 A1 WO 2021022774A1 CN 2019129007 W CN2019129007 W CN 2019129007W WO 2021022774 A1 WO2021022774 A1 WO 2021022774A1
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WO
WIPO (PCT)
Prior art keywords
magnetic circuit
magnetic
cone
diaphragm
voice coil
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Application number
PCT/CN2019/129007
Other languages
English (en)
French (fr)
Inventor
朱小田
董志永
Original Assignee
歌尔股份有限公司
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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 WO2021022774A1 publication Critical patent/WO2021022774A1/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
    • 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
    • H04R2400/00—Loudspeakers
    • H04R2400/11—Aspects regarding the frame of loudspeaker transducers

Definitions

  • the present invention relates to the field of electroacoustic technology, in particular to a speaker and an audio device.
  • the main purpose of the present invention is to provide a thin speaker.
  • a speaker which includes:
  • a magnetic circuit system installed on the bracket, the magnetic circuit system having a magnetic circuit gap and a cone vibration space provided inside the magnetic circuit gap;
  • a vibration system the vibration system includes a diaphragm, an elastic wave and a voice coil
  • the diaphragm includes a cone portion and an elastic connecting portion connected to the outer periphery of the cone portion, and the outer edge of the elastic connecting portion is connected to the A bracket, the bottom of the cone part is arranged in the cone vibration space, the elastic wave connects the cone part and the magnetic circuit system; one end of the voice coil is connected to the elastic connecting part, The other end of the voice coil extends into the gap of the magnetic circuit.
  • the voice coil is connected in the preset ring-shaped area, so that when the diaphragm vibrates with the same vibration amplitude, it increases Larger the amplitude of the voice coil.
  • first distance (D4) between the connection position of the voice coil and the elastic connecting portion and the inner edge of the elastic connecting portion, so there is a second distance (D3) between the inner edge and the outer edge of the elastic connecting portion, the first distance (D4) and the second distance (D3) have a first ratio, and the first ratio is greater than or equal to 0.3, and less than or equal to 0.7.
  • a third distance (D1) between the inner edge of the elastic connecting portion and the centerline of the diaphragm, and the voice coil is There is a fourth distance (D2) between the connection position of the elastic connecting portion and the center line of the diaphragm, and there is a fifth distance (D) between the outer edge of the elastic connecting portion and the center line of the diaphragm,
  • D1 and the fifth distance (D) there is a second ratio between the third distance (D1) and the fifth distance (D), and the second ratio is greater than or equal to 0.15 and less than 0.55;
  • the fourth distance (D2) and the first distance There is a third ratio between the five distances (D), the third ratio is greater than or equal to 0.55 and less than or equal to 0.85; the third ratio is greater than the second ratio.
  • the overall thickness of the speaker is greater than or equal to 7 mm and less than or equal to 12 mm.
  • one end of the elastic wave is connected to the bottom of the cone portion, and the other end is connected to the magnetic circuit system.
  • the magnetic circuit system includes a first magnetically permeable part and a central magnetic circuit
  • the first magnetically permeable part includes a first substrate and first conductive members protruding on the surface of the first substrate and distributed in a ring shape.
  • a magnetic convex portion, the central magnetic circuit is arranged inside the first magnetically permeable convex portion, the magnetic circuit gap is formed between the central magnetic circuit and the first magnetically permeable convex portion, and the central magnetic circuit
  • the middle part of the cone forms the cone vibration space.
  • the first magnetically conductive member further includes second magnetically conductive protrusions protrudingly provided on the surface of the first substrate and distributed in a ring shape, and the second magnetically conductive protrusions are provided on the first conductive member. Inside the magnetic convex portion, the first magnetically conductive convex portion protrudes from the second magnetically conductive convex portion;
  • the central magnetic circuit includes the second magnetic conductive protrusions, the first magnets distributed in a ring shape, and a second magnetic conductive member arranged in a ring shape.
  • the second magnetic conductive member and the first magnet are sequentially stacked on The second magnetically conductive protrusion, the first magnet is arranged between the second magnetically conductive member and the second magnetically conductive protrusion;
  • the magnetic circuit gap is formed between the second magnetically permeable part and the first magnetically permeable protrusion, and the inner side of the second magnetically permeable part, the first magnet and the second magnetically permeable part are formed The cone vibrates the space.
  • the inner edge of the first magnet protrudes inwardly from the second magnetically conductive protrusion
  • the elastic wave is connected to the lower surface of the inner edge of the first magnet
  • the elastic wave The other end is connected to the cone portion.
  • the loudspeaker further includes a heat insulating member, the heat insulating member is provided on the lower surface of the inner edge of the first magnet, and the elastic wave is connected to the lower surface of the heat insulating member.
  • the first substrate is provided with a heat dissipation through hole communicating with the cone vibration space
  • the speaker further includes a heat dissipation member
  • the heat dissipation member is hermetically connected to the heat dissipation through hole.
  • the outer edge of the first substrate protrudes outward from the first magnetically conductive convex portion;
  • the bracket includes a bottom plate and an enclosure plate protruding on the surface of the bottom plate, and the bottom plate is provided with The through hole is installed, the first magnetic conductive member is arranged in the through hole, and the bottom plate is connected to the upper surface of the outer edge of the first substrate.
  • the magnetic circuit system includes a third magnetic conductive member and a side magnetic circuit.
  • the third magnetic conductive member includes a second substrate and an annular magnetic conductive portion protruding from the surface of the second substrate.
  • the magnetic circuit is arranged on the peripheral side of the annular magnetic conductive part, the magnetic circuit gap is formed between the annular magnetic conductive part and the side magnetic circuit, and the cone vibration space is formed inside the annular magnetic conductive part.
  • the side magnetic circuit includes a second magnet distributed in a ring shape and a fourth magnetic conductive member distributed in a ring shape, and the second magnet and the fourth magnetic conductive member are sequentially stacked on the second substrate And the second magnet is arranged between the fourth magnetic permeable part and the second substrate; the annular magnetic permeable part and the fourth magnetic permeable part form the magnetic circuit gap.
  • the magnetic circuit system includes a third magnetic conductive member, a fifth magnetic conductive member and a side magnetic circuit
  • the third magnetic conductive member includes a second substrate and a ring-shaped conductive member protruding from the surface of the second substrate.
  • the magnetic part, the side magnetic circuit is provided on the circumferential side of the annular magnetic conductive part, the fifth magnetic conductive member is distributed in a ring shape on the upper end of the annular magnetic conductive part, and the fifth magnetic conductive member is connected to the
  • the magnetic circuit gap is formed between the side magnetic circuits, and the inner side of the annular magnetic conductive part and the fifth magnetic conductive member forms the cone vibration space;
  • the inner edge of the fifth magnetic conductive member protrudes inwardly from the annular magnetic conductive portion, one end of the elastic wave is connected to the lower surface of the inner edge of the fifth magnetic conductive member, and the elastic wave The other end is connected to the cone portion.
  • the voice coil has a lead wire, and the lead wire part is fixed to the lower surface of the elastic connecting portion.
  • the present invention also provides an audio device including a speaker.
  • the speaker includes:
  • a magnetic circuit system installed on the bracket, the magnetic circuit system having a magnetic circuit gap and a cone vibration space provided inside the magnetic circuit gap;
  • a vibration system the vibration system includes a diaphragm, an elastic wave and a voice coil
  • the diaphragm includes a cone portion and an elastic connecting portion connected to the outer periphery of the cone portion, and the outer edge of the elastic connecting portion is connected to the A bracket, the bottom of the cone part is arranged in the cone vibration space, the elastic wave connects the cone part and the magnetic circuit system; one end of the voice coil is connected to the elastic connecting part, The other end of the voice coil extends into the gap of the magnetic circuit.
  • the speaker of the present invention is provided with a cone and connects the cone with the elastic wave to enhance the interaction between the cone and the elastic wave, thereby ensuring the diaphragm And the vibration stability of the vibration system.
  • the speaker of the present invention is provided with an elastic connection part so that the cone part is arranged corresponding to the cone vibration space, which can effectively avoid the vibration of the diaphragm and the magnetic circuit system during the vibration process. Therefore, the distance between the diaphragm and the upper end of the vibration system can be reduced under the premise of ensuring that the maximum amplitude of the voice coil has a larger value, so as to reduce the thickness of the speaker.
  • Figure 1 is a schematic structural diagram of an embodiment of a loudspeaker of the present invention
  • Figure 2 is a schematic diagram of the exploded structure of the speaker in Figure 1;
  • Figure 3 is a schematic diagram of the structure of the bracket in Figure 2;
  • Figure 4 is a schematic diagram of the structure of the diaphragm in Figure 2;
  • Fig. 5 is a schematic diagram of the structure of the voice coil in Fig. 2;
  • Figure 6 is a schematic cross-sectional view of the loudspeaker of the present invention along the line I-I in Figure 1;
  • Fig. 7 is a partial structural diagram of the left side of the speaker in Fig. 6;
  • FIG. 8 is a schematic diagram of the size marking structure of the speaker in FIG. 7;
  • FIG. 9 is a schematic structural diagram of another embodiment of a speaker of the present invention.
  • Fig. 10 is a partial structural diagram of the left side of the speaker in Fig. 9;
  • FIG. 11 is a schematic structural diagram of another embodiment of the speaker of the present invention.
  • Fig. 12 is a partial structural diagram of the left side of the speaker in Fig. 11.
  • the present invention provides a speaker, which is mainly used for playing low-frequency signals.
  • the speaker 100 includes:
  • a magnetic circuit system installed on the bracket 10, the magnetic circuit system having a magnetic circuit gap 1 and a cone vibration space 2 provided inside the magnetic circuit gap 1;
  • the vibration system includes a diaphragm 20, an elastic wave 30, and a voice coil 40.
  • the diaphragm 20 includes a cone portion 21 and an elastic connecting portion 22 connected to the outer circumference of the cone portion 21. The outer edge is connected to the bracket 10, the bottom of the cone 21 is set in the cone vibration space 2, the elastic wave 30 connects the cone 21 and the magnetic circuit system; one end of the voice coil 40 is connected to the In the elastic connecting portion 22, the other end of the voice coil 40 extends into the gap 1 of the magnetic circuit.
  • the azimuth term “inner” refers to the azimuth toward the center line shown by the dashed-dotted line in Figures 6, 9 and 11, and the azimuth term “outer” refers to the direction away from the midpoint of Figures 6, 9 and 11. The orientation of the centerline indicated by the underline.
  • the cone portion 21 is substantially in a cone shape, and the cone portion 21 is provided corresponding to the cone vibration space 2, and the lower portion of the cone portion 21 can vibrate in the cone vibration space 2.
  • the directional indication is only used to explain that it is in a specific posture (as shown in the drawings). If the specific posture changes, the relative positional relationship, movement, etc. of the components below will also change the directional indication accordingly.
  • a changing magnetic field is generated in the magnetic circuit gap 1, and the changed magnetic field can drive the voice coil 40 to vibrate in the magnetic circuit gap 1, and the voice coil 40 can drive the diaphragm 20 to vibrate and produce sound.
  • the diaphragm 20 vibrates the lower part of the cone portion 21 can vibrate in the cone vibration space 2; at the same time, the elastic wave 30 vibrates with the diaphragm 20 to improve the vibration stability of the diaphragm 20 and the vibration system.
  • the elastic wave 30 is installed in the cone vibration space 2, one end of the elastic wave 30 is connected to the cone portion 21, and the other end of the elastic wave 30 is connected to the magnetic system.
  • the speaker 100 of the present invention by providing the cone vibration space 2 inside the magnetic circuit gap 1, can be used to avoid the vibration of the cone 21, so that the cone 21 can vibrate in the cone vibration space 2, thereby not only
  • the vibration of the cone 21 provides sufficient vibration space to realize the low-frequency and high-power output of the speaker 100; it can also provide installation space for the elastic wave 30 to help reduce the thickness of the speaker 100 and realize the ultra-thin design of the speaker 100 .
  • the thickness of the speaker 100 refers to the overall thickness of the speaker 100 in the extending direction of the center line of the diaphragm 20.
  • the speaker 100 of the present invention can achieve at least the following effects by dividing the diaphragm 20 into a cone portion 21 and an elastic connecting portion 22 connected to each other:
  • the speaker 100 of the present invention provides a cone 21 and connects the cone 21 with the elastic wave 30 to enhance the mutual relationship between the cone 21 and the elastic wave 30. Function, thereby ensuring the vibration stability of the diaphragm 20 and the vibration system.
  • the speaker 100 of the present invention is provided with an elastic connecting portion 22 so that the cone portion 21 is arranged corresponding to the cone vibration space 2, which can effectively prevent the diaphragm 20 from vibrating. It interferes with the magnetic circuit system, so that the distance between the diaphragm 20 and the upper end of the magnetic circuit system can be reduced under the premise that the maximum amplitude of the voice coil 40 has a larger value, so as to reduce the thickness of the speaker 100.
  • the outer edge of the cone portion 21 is disposed adjacent to the edge of the cone vibration space 2 to effectively prevent the diaphragm 20 from interacting with each other during the vibration process. Interference in the magnetic circuit system.
  • FIGS. 6 and 7 there is a preset annular area between the inner edge and the outer edge of the elastic connecting portion 22, and the voice coil 40 is connected in the preset annular area; that is, the voice coil 40
  • the connection position with the elastic connecting portion 22 is located in the preset annular area.
  • the speaker 100 of the present invention By connecting the voice coil 40 to the inner side of the outer edge of the diaphragm 20, the amplitude of the voice coil 40 can be increased when the diaphragm 20 vibrates with the same vibration amplitude, so as to increase the maximum amplitude of the voice coil 40.
  • the speaker 100 of the present invention by connecting the voice coil 40 to the inner side of the outer edge of the diaphragm 20, can ensure that the maximum amplitude of the voice coil 40 has a larger value by increasing the radial size of the diaphragm 20. Under the premise of reducing the distance between the diaphragm 20 and the upper end of the magnetic circuit system, the thickness of the speaker 100 is reduced.
  • the outer edge of the preset annular area should have a certain distance from the outer edge of the diaphragm 20 to ensure that the maximum amplitude of the voice coil 40 has a sufficiently large value; the inner edge of the preset annular area The edge should also have a certain distance from the inner edge of the elastic connecting portion 22 (that is, the outer edge of the cone portion 21), so as to provide sufficient installation space for the central magnetic circuit of the magnetic circuit system.
  • the voice coil 40 is connected to the middle of the elastic connecting portion 22.
  • the shape of the diaphragm 20 may be a circle, a racetrack, an oval, or a square, etc.
  • the cross-sectional shape of the voice coil 40 may be a circle, a racetrack, an ellipse, or a square, etc.;
  • the position of the voice coil 40 will be described in detail by taking the shape of the cross section of the diaphragm 20 and the voice coil 40 as a circle, but the present invention is not limited to this; it is understandable that when the diaphragm 20 and the voice coil 40 When it is set to other shapes, it is easy to obtain the corresponding structural features by analogy with when it is set to be round, and it is not necessary to elaborate here.
  • the first connection position between the voice coil 40 and the elastic connecting portion 22 and the inner edge of the elastic connecting portion 22.
  • a part of the elastic connecting portion 22 can be provided on the outside of the magnetic circuit gap 1 and a part of the elastic connection portion 22 can be provided on the inside of the magnetic circuit gap 1.
  • the first ratio K1 is greater than or equal to 0.3 and less than or equal to 0.7.
  • the first ratio K1 can be selected to be greater than or equal to 0.4 and less than or equal to 0.6, so as to further thin the speaker 100 while ensuring the acoustic performance of the speaker 100.
  • the inner edge of the elastic connecting portion 22 (that is, the outer edge of the cone portion 21) and the center of the diaphragm 20
  • the outer edge of the elastic connecting portion 22 and the diaphragm 20 There is a fifth distance D between the center lines of, and a second ratio K2 between the third distance D1 and the fifth distance D.
  • the third ratio is greater than the second ratio
  • the second ratio K2 represents the proportion of the cone 21 compared to the diaphragm 20. If the second ratio K2 is too small, the proportion of the cone 21 will be too small. The interaction between the cone 21 and the elastic wave 30 is greatly weakened, thereby reducing the vibration stability of the diaphragm 20 and the vibration system. If the second ratio K2 is too large, the ratio of the cone 21 will be too large, and the diaphragm 20 will easily interfere with the magnetic circuit system during the vibration process, which is not conducive to thinning the speaker 100. Based on this, optionally, the second ratio K2K2 is greater than or equal to 0.15 and less than or equal to 0.55.
  • the second ratio K2 is greater than or equal to 0.2 and less than or equal to 0.36, so as to not only ensure the vibration stability of the diaphragm 20 and the vibration system, but also realize the thinning of the speaker 100.
  • the third ratio K3 represents the increase in the amplitude of the voice coil 40 when the diaphragm 20 vibrates with the same vibration amplitude. If the third ratio K3 is too small, the voice coil If 40 is too close to the outer edge of the diaphragm 20, the increase in the amplitude of the voice coil 40 is too small, and the thickness of the speaker 100 cannot be effectively reduced. If the third ratio K3 is too large, the voice coil 40 will be too close to the inner edge of the elastic connecting portion 22 (that is, the outer edge of the cone portion 21), which greatly reduces the installation space of the central magnetic circuit of the magnetic circuit system Therefore, it is not conducive to the design of the magnetic circuit system and the improvement of the acoustic performance of the speaker 100. Therefore, optionally, the third ratio K3 is greater than or equal to 0.55 and less than or equal to 0.85.
  • the third ratio K3 can be selected to be greater than or equal to 0.6 and less than or equal to 0.7, so as to further thin the speaker 100 while ensuring the acoustic performance of the speaker 100.
  • the ratio between the third distance D1 and the fourth distance D2 is a golden ratio (ie 0.618), and the ratio between the fourth distance D2 and the fifth distance D (ie, the third ratio K3 ) Is the golden ratio.
  • the acoustic performance of the speaker 100 can be improved, and the speaker 100 can be thinned to a greater extent.
  • the ratio of the distance between the inner edge of the elastic connecting portion 22 (ie the outer edge of the cone portion 21) and the outer edge of the elastic connecting portion 22 to the five distance D is also the golden ratio. .
  • the maximum amplitude of the voice coil 40 can be greater than or equal to 2 millimeters and less than or equal to 4 millimeters, so as to realize the large amplitude output of the speaker 100. More specifically, the maximum amplitude of the voice coil 40 can be greater than or equal to 2.5 mm and less than or equal to 3 mm.
  • the overall thickness of the speaker 100 can be greater than or equal to 7 mm and less than or equal to 12 mm, so as to realize the ultra-thin design of the speaker 100. More specifically, the overall thickness of the speaker 100 may be greater than or equal to 8 mm and less than or equal to 10 mm, so as to further realize the ultra-thin design of the speaker 100.
  • one end of the elastic wave 30 is connected to the bottom of the cone 21, and the other end is connected to the magnetic circuit system.
  • the elastic wave 30 can more effectively prevent the diaphragm 20 from shaking during the vibration, so as to better improve the vibration stability of the diaphragm 20 and the vibration system. Sex.
  • FIG. 7 and 9-12 there are many configurations of the magnetic circuit system.
  • the following will describe the formation of the magnetic circuit gap 1 and cone vibration space 2 as examples; Yes, the structure of the magnetic circuit system includes but is not limited to the following.
  • the magnetic circuit system includes a first magnetically permeable member 50 and a central magnetic circuit.
  • the first magnetically permeable member 50 includes a first substrate 51 and protruding on the first substrate. 51, the first magnetically conductive protrusions 52 are distributed in a ring shape on the surface, the central magnetic circuit is arranged inside the first magnetically conductive protrusions 52, and the central magnetic circuit and the first magnetically conductive protrusions 52 The magnetic circuit gap 1 is formed therebetween, the cone vibration space 2 is formed on the central magnetic circuit, and the elastic wave 30 is connected to the central magnetic circuit.
  • the magnetically conductive parts (such as the first magnetically conductive part 50, and the second magnetically conductive parts 62, the third magnetically conductive parts 70, etc. hereinafter) can be made of materials with good magnetically conductive properties to use For magnetism, magnetism, etc.; for example, the material of the magnetic conductor includes but is not limited to one or more of low carbon steel, pure iron and alloy.
  • the first magnetically conductive convex portions 52 distributed in a ring shape have at least the following two meanings:
  • the first magnetically conductive protrusion 52 is arranged in a ring structure.
  • a plurality of the first magnetically conductive protrusions 52 are arranged at intervals, and the plurality of first magnetically conductive protrusions 52 are enclosed to form a ring structure.
  • the first magnetically conductive protrusion 52 is arranged in a ring structure.
  • the magnetic convergence effect of the magnetic circuit gap 1 is enhanced.
  • the first magnetically conductive member 50 further includes second magnetically conductive protrusions 53 protrudingly provided on the surface of the first substrate 51 and distributed in a ring shape.
  • the magnetic protrusions 53 are arranged at intervals on the inner side of the first magnetically conductive protrusions 52, and the first magnetically conductive protrusions 52 protrude from the second magnetically conductive protrusions 53.
  • the central magnetic circuit includes a second magnetic conductive protrusion 53, a first magnet 1 distributed in a ring shape, and a second magnetic conductive member 62 arranged in a ring shape, and the second magnetic conductive member 62 and the first magnet 1 are sequentially stacked On the second magnetically conductive protrusion 53, the first magnet 1 is disposed between the second magnetically conductive member 62 and the second magnetically conductive protrusion 53; the second magnetically conductive member 62 and the first magnetically conductive protrusion 52 A magnetic circuit gap 1 is formed therebetween, and a cone vibration space 2 is formed inside the second magnetically conductive protrusion 53, the first magnet 1 and the second magnetically conductive member 62.
  • the magnets (such as the first magnet 1, and the second magnet 81 below) can be sintered from hard magnetic materials, and their function is to provide a constant magnetic field with a certain magnetic induction density, which can be but not limited to Ferrite magnets, AlNiCo magnets or NdFeB magnets.
  • the first magnet 1 is arranged in a ring structure
  • the second magnetically conductive protrusion 53 is arranged in a ring structure
  • the second magnetically conductive member 62 is arranged in a ring structure.
  • the outer edge of the cone portion 21 is located on the second magnetic conductive member 62 The inner side of the inner edge.
  • the central magnetic circuit can also be configured in other structural forms, for example, the second magnetically conductive protrusion 53 and the first substrate 51 can be assembled separately.
  • the inner edge of the first magnet 1 protrudes from the second magnetically conductive protrusion 53 inwardly, and the elastic wave 30 is connected to the lower part of the inner edge of the first magnet 1.
  • the other end of the elastic wave 30 is connected to the cone 21.
  • connection strength between the elastic wave 30 and the magnetic circuit system can be easily increased, thereby improving the vibration of the elastic wave 30 and the diaphragm 20. stability.
  • the elastic wave 30 can also be connected to other positions of the central magnetic circuit, such as the second magnetic conductive member 62 or the second magnetic conductive protrusion 53 and so on.
  • the speaker 100 further includes a heat insulating member 90, the heat insulating member 90 is disposed on the magnetic circuit system, and the elastic wave 30 is connected to the heat insulating member 90.
  • the temperature of the magnetic circuit system is relatively high.
  • the heat insulation member 90 to connect the elastic wave 30 and the magnetic circuit system, the high temperature of the magnetic circuit system can prevent the elastic wave 30 and the magnetic circuit system from being affected. The strength of the connection between them can improve the vibration stability of the elastic wave 30 and the diaphragm 20.
  • the heat insulator 90 is provided on the central magnetic circuit; more specifically, the heat insulator 90 is provided on the lower surface of the inner edge of the first magnet 1, and the elastic wave 30 is connected to the heat insulation The lower surface of the piece 90. In this way, it is possible to prevent the high temperature of the first magnet 1 from damaging the elastic wave 30 and the connection structure between the elastic wave 30 and the first magnet 1, thereby improving the stability of the connection between the elastic wave 30 and the first magnet 1. In order to improve the vibration stability of the elastic wave 30 and the diaphragm 20; the connection strength between the elastic wave 30 and the first magnet 1 can also be increased, so as to improve the vibration stability of the elastic wave 30 and the diaphragm 20.
  • the first substrate 51 is provided with a heat dissipation through hole 511 communicating with the cone vibration space 2, and the speaker 100 further includes a heat dissipation member 512, which is hermetically connected ⁇ The heat dissipation through hole 511.
  • the heat sink 512 may be made of materials with good thermal conductivity (such as silver, copper, aluminum, or silicon) to facilitate rapid heat dissipation.
  • the heat sink 512 to seal the heat dissipation through hole 511, not only can a closed space be formed in the speaker 100 with the cone vibration space 2 etc., so that the diaphragm 20 and the elastic wave 30 can move in the closed space, which can effectively
  • the heat dissipation member 512 can quickly dissipate heat, so as to avoid excessively high temperature in the speaker 100.
  • the size of the heat dissipation through hole 511 is larger than the size of the inner diameter of the second magnetically conductive protrusion 53 so that the inner ring hole in the middle of the second magnetically conductive protrusion 53 is provided at the bottom of the heat dissipation through hole 511, To facilitate the installation of the heat sink 512.
  • a surface of the heat sink 512 away from the cone vibration space 2 is provided with a heat dissipation structure, so that the heat dissipation speed can be further accelerated.
  • the outer edge of the first substrate 51 protrudes outward from the first magnetically conductive protrusion 52; the bottom of the bracket 10 is connected to the outer edge of the first substrate 51. In this way, it is unnecessary to add a special connection structure to the bracket 10 to connect with the magnetic circuit system.
  • the bracket 10 includes a bottom plate 11 and an enclosure 12 protruding from the surface of the bottom plate 11, the bottom plate 11 is provided with a mounting through hole 111, and the first magnetic conductive member 50 is provided in the mounting through hole 111, and the bottom plate 11 is connected to the upper surface of the outer edge of the first substrate 51, and the elastic connecting portion 22 is connected to the enclosure board 12.
  • the connection strength between the bracket 10 and the first magnetic conductive member 50 can be increased, so as to improve the overall stability of the speaker 100.
  • the voice coil 40 since the voice coil 40 is connected to the inner side of the elastic connecting portion 22, the outer edge of the elastic connecting portion 22 must be directed outward to protrude from the first magnetically conductive protrusion 52, in order to facilitate fixing the elastic connecting portion 22 and facilitate The elastic connecting portion 22 vibrates, so that a certain preset distance can be set between the enclosure plate 12 and the first magnetically conductive convex portion 52.
  • the certain preset distance can be determined according to the connection position of the voice coil 40 on the elastic connecting portion 22 and the folding ring.
  • the radial size of the 24 is determined, that is, the radial size of the bracket 10 and the speaker 100 need to be increased to realize the thinning of the speaker 100.
  • the speaker 100 usually further includes a folding ring 24, the inner edge of the folding ring 24 is connected to the outer edge of the elastic connecting portion 22, and the outer edge of the folding ring 24 is connected to the bracket 10.
  • the bracket 10 further includes a connecting ring plate 13 formed by bending and extending the upper end of the enclosure plate 12 outward.
  • the connecting ring plate 13 is an annular connecting plate, and the elastic connecting portion 22 is connected to To the upper surface of the connecting ring plate 13. More specifically, the outer edge of the folding ring 24 is connected to the upper surface of the connecting ring plate 13. In this way, the connection area between the folding ring 24 and the bracket 10 can be easily increased, so as to improve the connection strength and connection stability between the folding ring 24 and the bracket 10.
  • the outer edge of the connecting ring plate 13 is provided with an upward folding edge 14 to protect at least the folding ring 24.
  • the voice coil 40 has a lead wire 43, and the lead wire 43 is partially fixed to the lower surface of the elastic connecting portion 22.
  • the lead wire 43 can be made to vibrate along with the diaphragm 20 to reduce the influence of the lead wire 43 on the vibration of the voice coil 40 and the diaphragm 20, so as to further improve the vibration stability of the voice coil 40 and the diaphragm 20.
  • the voice coil 40 includes a voice coil bobbin 41 and a coil 42 wound around a part of the voice coil bobbin 41.
  • the upper end of the voice coil bobbin 41 is connected to the elastic connecting portion 22, and the coil 42 is arranged in the magnetic circuit gap 1. More specifically, as shown in FIG. 7, the coil 42 has a lead wire 43, and an end of the lead wire 43 close to the voice coil 40 is extended upward on the surface of the voice coil bobbin 41.
  • the end of the lead wire 43 close to the voice coil 40 can be extended outwardly and disposed on the lower surface of the elastic connecting portion 22, so that the lead wire 43 is partially fixed to the elastic connecting portion 22 The lower surface of section 22.
  • FIGS. 5 and 7 there are two lead wires 43, and the two lead wires 43 are symmetrically arranged on both sides of the voice coil 40.
  • the bracket 10 is further provided with a connecting terminal 15, and the lead 43 is electrically connected to the connecting terminal 15.
  • connection terminals 15 there are two symmetrical connection terminals 15 on the bracket 10, and the two connection terminals 15 are electrically connected to the two lead wires 43 in a one-to-one correspondence.
  • the elastic connecting portion 22 has a planar diaphragm structure.
  • the elastic connecting portion 22 includes a first annular connecting portion 221 and a second annular connecting portion 222 that are spaced apart in the extending direction of the center line of the diaphragm 20.
  • An annular connecting portion 221 and a second annular connecting portion 222 are smoothly connected, the first annular connecting portion 221 is provided on the outer periphery of the second annular connecting portion 222, the first annular connecting portion 221 is connected to the bracket 10, and the The two annular connecting portions 222 are connected to the outer circumference of the cone portion 21.
  • the first annular connecting portion 221 and the second annular connecting portion 222 are both planar diaphragm structures.
  • a plurality of raised portions 23 are distributed on the elastic connecting portion 22, so that at least the structural strength of the elastic connecting portion 22 can be enhanced.
  • a plurality of the protruding portions 23 are distributed annularly on the circumferential side of the cone portion 21.
  • the protruding portion 23 extends from the inside to the outside, and the protruding portion 23 is in a deflected arrangement.
  • the protruding portion 23 is arranged in an arc shape.
  • the magnetic circuit system includes a third magnetic conductive member 70 and a side magnetic circuit
  • the third magnetic conductive member 70 includes a second substrate 71 and a convex
  • the annular magnetic conductive portion 72 on the surface of the second substrate 71, the side magnetic circuit is provided on the circumferential side of the annular magnetic conductive portion 72, and the magnetic circuit gap is formed between the annular magnetic conductive portion 72 and the side magnetic circuit 1.
  • a cone vibration space 2 is formed on the inner side of the annular magnetic conductive portion 72.
  • one end of the elastic wave 30 is connected to the inner side wall of the annular magnetic conductive portion 72, and the other end is connected to the bottom of the cone portion 21.
  • the side magnetic circuit includes a second magnet 81 distributed in a ring shape and a fourth magnetic conductive member 82 distributed in a ring shape.
  • the second magnet 81 and The fourth magnetic conductive member 82 is sequentially stacked on the surface of the second substrate 71, and the second magnet 81 is provided between the fourth magnetic conductive member 82 and the second substrate 71;
  • a magnetic circuit gap 1 is formed between the four magnetic parts 82.
  • an inner connecting portion protrudes from the inner side wall of the annular magnetic conductive portion 72, and the elastic wave 30 is connected to the lower surface of the inner connecting portion.
  • a heat insulating member 90 may be provided between the elastic wave 30 and the annular magnetic conductive portion 72. More specifically, the heat insulating member 90 may be provided on the lower surface of the inner connecting portion; or, the inner connecting portion may not be provided, and the heat insulating member 90 may be directly connected to the inner side surface of the annular magnetic conductive portion 72, and then The heat insulation member 90 is connected to the elastic wave 30.
  • the heat dissipation through hole 511 is opened on the second substrate 71 to realize communication with the cone vibration space 2, and the heat dissipation member 512 is sealed and connected to the heat dissipation through hole 511.
  • the heat dissipation through hole 511 is a stepped hole to facilitate installation of the heat dissipation member 512.
  • the structure of the bracket 10 is basically the same as that of the previous embodiment.
  • the bracket 10 includes a bottom plate 11, a surrounding plate 12, a connecting ring plate 13, and a folding edge 14, which need not be described in detail here.
  • connection relationship between the bracket 10 and the magnetic circuit system is adaptively changed; specifically, as shown in FIGS. 9 and 10, the annular magnetic conductive portion 72 is installed on the bottom plate 11 The outer edge of the second substrate 71 protrudes from the annular magnetic conductive portion 72 outwardly, and the bottom plate 11 is connected to the upper surface of the outer edge of the second substrate 71.
  • a fifth magnetic conductive member 73 is further provided at the upper end of the annular magnetic conductive portion 72.
  • the magnetic circuit system includes a third magnetic conductive member 70, a fifth magnetic conductive member 73 and a side magnetic circuit.
  • the third magnetic conductive member 70 It includes a second substrate 71 and a ring-shaped magnetic conductive portion 72 protruding on the surface of the second substrate 71.
  • the side magnetic circuit is provided on the peripheral side of the ring-shaped magnetic conductive portion 72.
  • the fifth magnetic conductive member 73 is distributed in a ring shape.
  • the upper end of the magnetic conductive portion 72, the magnetic circuit gap 1 is formed between the fifth magnetic conductive member 73 and the side magnetic circuit, and the inner side of the annular magnetic conductive portion 72 and the fifth magnetic conductive member 73 are formed The cone vibration space 2.
  • the inner edge of the fifth magnetic conductive member 73 protrudes inwardly from the annular magnetic conductive portion 72, and one end of the elastic wave 30 is connected to On the lower surface of the inner edge of the fifth magnetic conductive member 73, the other end of the elastic wave 30 is connected to the cone 21.
  • a heat insulating member 90 may be provided between the elastic wave 30 and the magnetic circuit system. More specifically, the heat insulating member 90 may be provided on the lower surface of the inner edge of the fifth magnetic conductive member 73.
  • the structure of the side magnetic circuit and the support 10 is basically the same as the previous embodiment.
  • the side magnetic circuit includes a second magnet 81 and a second magnet.
  • the bracket 10 includes a bottom plate 11, a surrounding plate 12, a connecting ring plate 13, and a folded edge 14, etc.; it is not necessary to elaborate here.
  • the speaker 100 in the example of the present invention can withstand relatively large power, and its power can reach more than 15W; and the speaker 100 is ultra-thin, high in sensitivity, and low in resonance frequency.
  • the present invention also provides an audio device that includes a speaker.
  • the specific structure of the speaker refers to the foregoing embodiment. Since the audio device of the present invention adopts all the technical solutions of all the foregoing embodiments, it has at least the technical solutions of the foregoing embodiment. All the beneficial effects brought about are not repeated here.
  • the audio device can be a liquid crystal display, or a TV, etc.

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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)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

本发明公开一种扬声器和音频装置，扬声器包括：支架；磁路系统，安装于支架，磁路系统具有磁路间隙和设于磁路间隙内侧的锥盆振动空间；以及振动系统，振动系统包括振膜、弹波和音圈，振膜包括锥盆部和连接于锥盆部外周的弹性连接部，弹性连接部的外边缘连接于支架，锥盆部的底部设于锥盆振动空间内，弹波连接锥盆部和磁路系统；音圈的一端连接于弹性连接部，音圈的另一端伸入磁路间隙内。如此，可在确保音圈的最大振幅具有较大值的前提下，降低振膜与振动系统的上端之间的距离，以减薄扬声器的厚度。

Description

扬声器和音频装置 技术领域
本发明涉及电声技术领域，特别涉及一种扬声器和音频装置。
背景技术
随着目前市场上电子类产品(如电视等)逐渐集成化、轻薄化的发展趋势，对嵌入其中的扬声器也提出了越来越高的要求；特别是对低频扬声器来说，对其超薄性的要求越来越高。传统锥形扬声器因其体积较庞大，逐渐满足不了市场对超薄的需求。
发明内容
本发明的主要目的是提出一种薄型扬声器。
为实现上述目的，本发明提出一种扬声器，包括：
支架；
磁路系统，安装于所述支架，所述磁路系统具有磁路间隙和设于所述磁路间隙内侧的锥盆振动空间；以及
振动系统，所述振动系统包括振膜、弹波和音圈，所述振膜包括锥盆部和连接于所述锥盆部外周的弹性连接部，所述弹性连接部的外边缘连接于所述支架，所述锥盆部的底部设于所述锥盆振动空间内，所述弹波连接所述锥盆部和所述磁路系统；所述音圈的一端连接于所述弹性连接部，所述音圈的另一端伸入所述磁路间隙内。
可选地，所述弹性连接部的内边缘和外边缘之间具有预设环形区域，所述音圈连接于所述预设环形区域内，以在所述振膜振动同一振动幅度时，增大所述音圈的振幅。
可选地，在过所述振膜的中心线的截面内，所述音圈与所述弹性连接部的连接位置与所述弹性连接部的内边缘之间具有第一距离(D4)，所述弹性连接部的内边缘与外边缘之间具有第二距离(D3)，所述第一距离(D4)与所 述第二距离(D3)具有第一比值，所述第一比值大于或等于0.3，且小于或等于0.7。
可选地，在过所述振膜的中心线的截面内，所述弹性连接部的内边缘与所述振膜的中心线之间具有第三距离(D1)，所述音圈与所述弹性连接部的连接位置与所述振膜的中心线之间具有第四距离(D2)，所述弹性连接部的外边缘与所述振膜的中心线之间具有第五距离(D)，所述第三距离(D1)与所述第五距离(D)之间具有第二比值，所述第二比值大于或等于0.15，且小于0.55；所述第四距离(D2)与所述第五距离(D)之间具有第三比值，所述第三比值大于或等于0.55，且小于或等于0.85；所述第三比值大于所述第二比值。
可选地，所述扬声器的整体厚度大于或等于7毫米，且小于或等于12毫米。
可选地，所述弹波的一端连接于所述锥盆部的底部，另一端连接于所述磁路系统。
可选地，所述磁路系统包括第一导磁件和中心磁路，所述第一导磁件包括第一基板和凸设于所述第一基板表面、且呈环形分布的第一导磁凸部，所述中心磁路设于所述第一导磁凸部的内侧，所述中心磁路与所述第一导磁凸部之间形成所述磁路间隙，所述中心磁路的中部形成所述锥盆振动空间。
可选地，所述第一导磁件还包括凸设于所述第一基板表面、且呈环形分布的第二导磁凸部，所述第二导磁凸部设于所述第一导磁凸部的内侧，所述第一导磁凸部凸出于所述第二导磁凸部；
所述中心磁路包括所述第二导磁凸部、呈环形分布的第一磁体、和呈环形设置第二导磁件，所述第二导磁件和所述第一磁体依次叠设于所述第二导磁凸部，所述第一磁体设于所述第二导磁件和所述第二导磁凸部之间；
所述第二导磁件与所述第一导磁凸部之间形成所述磁路间隙，所述第二导磁凸部、所述第一磁体和所述第二导磁件的内侧形成所述锥盆振动空间。
可选地，所述第一磁体的内缘向内侧向凸出于所述第二导磁凸部，所述弹波连接于所述第一磁体的内缘的下表面，所述弹波的另一端连接于所述锥盆部。
可选地，所述扬声器还包括隔热件，所述隔热件设于所述第一磁体的内 缘的下表面，所述弹波连接于所述隔热件的下表面。
可选地，所述第一基板上开设有与所述锥盆振动空间连通的散热通孔，所述扬声器还包括散热件，所述散热件密封连接于所述散热通孔。
可选地，所述第一基板的外缘向外侧向凸出于所述第一导磁凸部；所述支架包括底板和凸设于所述底板表面的围板，所述底板上设有安装通孔，所述第一导磁件设于所述安装通孔内，且所述底板连接于所述第一基板的外缘的上表面。
可选地，所述磁路系统包括第三导磁件和边磁路，所述第三导磁件包括第二基板和凸设于所述第二基板表面的环形导磁部，所述边磁路设于所述环形导磁部的周侧，所述环形导磁部与所述边磁路之间形成所述磁路间隙，所述环形导磁部内侧形成所述锥盆振动空间。
可选地，所述边磁路包括呈环形分布的第二磁体和呈环形分布的第四导磁件，所述第二磁体和所述第四导磁件依次叠设于所述第二基板表面，且所述第二磁体设于所述第四导磁件与所述第二基板之间；所述环形导磁部与所述第四导磁件之间形成所述磁路间隙。
可选地，所述磁路系统包括第三导磁件、第五导磁件和边磁路，所述第三导磁件包括第二基板和凸设于所述第二基板表面的环形导磁部，所述边磁路设于所述环形导磁部的周侧，所述第五导磁件呈环形分布于所述环形导磁部的上端，所述第五导磁件与所述边磁路之间形成所述磁路间隙，所述环形导磁部和所述第五导磁件的内侧形成所述锥盆振动空间；
所述第五导磁件的内缘向内侧向凸出于所述环形导磁部，所述弹波的一端连接于所述第五导磁件的内缘的下表面，所述弹波的另一端连接于所述锥盆部。
可选地，所述音圈具有引线，所述引线部分固定于所述弹性连接部的下表面。
本发明还提出一种音频装置，包括扬声器。所述扬声器包括：
支架；
磁路系统，安装于所述支架，所述磁路系统具有磁路间隙和设于所述磁路间隙内侧的锥盆振动空间；以及
振动系统，所述振动系统包括振膜、弹波和音圈，所述振膜包括锥盆部和连接于所述锥盆部外周的弹性连接部，所述弹性连接部的外边缘连接于所述支架，所述锥盆部的底部设于所述锥盆振动空间内，所述弹波连接所述锥盆部和所述磁路系统；所述音圈的一端连接于所述弹性连接部，所述音圈的另一端伸入所述磁路间隙内。
本发明扬声器，通过将振膜分设为互相连接的锥盆部和弹性连接部，至少可以实现以下效果：
1)有利于保证振膜的振动性能。
2)相较于将振膜整体做成平面状，本发明扬声器通过设置锥盆部，并使锥盆部与弹波连接，以增强锥盆部与弹波的相互作用，从而可保证振膜和振动系统的振动稳定性。
3)相较于将振膜整体做成锥盆状，本发明扬声器通过设置弹性连接部，以使锥盆部对应锥盆振动空间设置，可有效避免振膜在振动过程中与磁路系统发生干涉，从而可在确保音圈的最大振幅具有较大值的前提下，降低振膜与振动系统的上端之间的距离，以减薄扬声器的厚度。
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为本发明扬声器一实施例的结构示意图；
图2为图1中扬声器的爆炸结构示意图；
图3为图2中支架的结构示意图；
图4为图2中振膜的结构示意图；
图5为图2中音圈的结构示意图；
图6为本发明扬声器沿图1中Ⅰ-Ⅰ线的剖面示意图；
图7为图6中扬声器左侧的局部结构示意图；
图8为图7中扬声器的尺寸标注结构示意图；
图9为本发明扬声器另一实施例的结构示意图；
图10为图9中扬声器左侧的局部结构示意图；
图11为本发明扬声器又一实施例的结构示意图；
图12为图11中扬声器左侧的局部结构示意图。
附图标号说明：
标号 名称 标号 名称
100 扬声器 43 引线
10 支架 50 第一导磁件
11 底板 51 第一基板
111 安装通孔 511 散热通孔
12 围板 512 散热件
13 连接环板 52 第一导磁凸部
14 折边 53 第二导磁凸部
15 接线端子 61 第一磁体
20 振膜 62 第二导磁件
21 锥盆部 70 第三导磁件
22 弹性连接部 71 第二基板
221 第一环形连接部 72 环形导磁部
222 第二环形连接部 73 第五导磁件
23 隆起部 81 第二磁体
24 折环 82 第四导磁件
30 弹波 90 隔热件
40 音圈 1 磁路间隙
41 音圈骨架 2 锥盆振动空间
42 线圈    
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，若本发明实施例中有涉及“第一”、“第二”等的描述，则该“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，全文中出现的“和/或”的含义为，包括三个并列的方案，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。
本发明提出一种扬声器，主要用于低频信号的播放。
在本发明一实施例中，如图1、2、4、6和7所示，该扬声器100包括：
支架10；
磁路系统，安装于支架10，所述磁路系统具有磁路间隙1和设于磁路间隙1内侧的锥盆振动空间2；以及
振动系统，所述振动系统包括振膜20、弹波30和音圈40，所述振膜20包括锥盆部21和连接于锥盆部21外周的弹性连接部22，所述弹性连接部22的外边缘连接于支架10，所述锥盆部21的底部设于锥盆振动空间2内，所述弹波30连接锥盆部21和磁路系统；所述音圈40的一端连接于所述弹性连接部22，所述音圈40的另一端伸入磁路间隙1内。
在本发明中，方位术语“内”指的是朝向图6、9和11中点划线所示的中心线的方位，而方位术语“外”指的是远离图6、9和11中点划线所示的中心线的方位。
其中，如图6所示，所述锥盆部21大致呈锥盆状，锥盆部21对应锥盆振动空间2设置，锥盆部21的下部可在锥盆振动空间2内振动。需要说明，若本发明实施例中有涉及方向性指示(诸如上、下、左、右、前、后……)，则该方向性指示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。
具体的，音频信号接通后，磁路间隙1内产生变化的磁场，该变化的磁场可驱动音圈40在磁路间隙1内振动，音圈40可带动振膜20振动而发声。振膜20振动时，其锥盆部21的下部可在锥盆振动空间2内振动；同时，弹波30随振膜20一起振动，以提高振膜20和振动系统振动的稳定性。
具体的，弹波30安装在锥盆振动空间2内，且弹波30的一端连接于所述锥盆部21，所述弹波30的另一端连接于磁力系统。
本发明扬声器100，通过在磁路间隙1的内侧设置锥盆振动空间2，可用于避让锥盆部21的振动，以使锥盆部21可在锥盆振动空间2内振动，从而不仅可为锥盆部21的振动提供充足的振动空间，以实现扬声器100的低频大功率输出；还可以为弹波30提供安装空间，以有利于减薄扬声器100的厚度，实现扬声器100的超薄化设计。
其中，扬声器100的厚度是指扬声器100在振膜20的中心线延伸方向上的整体厚度。
同时，本发明扬声器100，通过将振膜20分设为互相连接的锥盆部21和弹性连接部22，至少可以实现以下效果：
1)有利于保证振膜20的振动性能。
2)相较于将振膜20整体做成平面状，本发明扬声器100通过设置锥盆部21，并使锥盆部21与弹波30连接，以增强锥盆部21与弹波30的相互作用，从而可保证振膜20和振动系统的振动稳定性。
3)相较于将振膜20整体做成锥盆状，本发明扬声器100通过设置弹性连接部22，以使锥盆部21对应锥盆振动空间2设置，可有效避免振膜20在振动过程中与磁路系统发生干涉，从而可在确保音圈40的最大振幅具有较大值的前提下，降低振膜20与磁路系统的上端之间的距离，以减薄扬声器100的厚度。
具体的，在所述磁路系统在振膜20上的投影中，所述锥盆部21的外边缘邻近所述锥盆振动空间2的边缘设置，以有效避免振膜20在振动过程中与磁路系统发生干涉。
进一步地，如图6和7所示，所述弹性连接部22的内边缘和外边缘之间具有预设环形区域，所述音圈40连接于预设环形区域内；即所述音圈40与 弹性连接部22的连接位置位于预设环形区域内。如此，相较于音圈40连接于振膜20的外边缘，可使音圈40连接于振膜20的外边缘的内侧，以在振膜20振动同一振动幅度时，增大音圈40的振幅。
可以理解的是，当振膜20振动时，越靠近振膜20的外边缘的位置，其振动的幅度越小，相较于将音圈40连接于振膜20的外边缘，本发明扬声器100，通过将音圈40连接于振膜20的外边缘的内侧，可在振膜20振动同一振动幅度时，增大音圈40的振幅，以提高音圈40的最大振幅。换而言之，本发明扬声器100，通过将音圈40连接于振膜20的外边缘的内侧，可通过增大振膜20的径向尺寸来在确保音圈40的最大振幅具有较大值的前提下，降低振膜20与磁路系统的上端之间的距离，以减薄扬声器100的厚度。
可以理解的是，所述预设环形区域的外边缘应与所述振膜20的外边缘具有一定距离，以保证音圈40的最大振幅具有足够大的值；所述预设环形区域的内边缘应与所述弹性连接部22的内边缘(即锥盆部21的外边缘)也具有一定距离，以为磁路系统的中心磁路足够的安装空间。
可选地，所述音圈40连接于所述弹性连接部22的中部。
在具体实施例中，所述振膜20的形状可以为圆形、跑道形、椭圆形或方形等，所述音圈40的横截面形状可以为圆形、跑道形、椭圆形或方形等；下文将以振膜20和音圈40的横截面的形状均大致呈圆形为例对音圈40的位置进行详细说明，但本发明并不仅限与此；可以理解，当振膜20和音圈40设置为其他形状时，通过与其设置为圆形时进行类比，很容易获得相应的结构特征，在此不必详述。
进一步地，如图7和8所示，在过所述振膜20的中心线的截面内，所述音圈40与弹性连接部22的连接位置与弹性连接部22的内边缘之间具有第一距离D4，所述弹性连接部22的内边缘与外边缘之间具有第二距离D3，所述第一距离D4与所述第二距离D3具有第一比值，所述第一比值K1大于或等于0.3，且小于或等于0.7，即所述第一距离D4与第二距离D3的比值大于或等于0.3，且小于或等于0.7，即0.3≤K1＝D4/D3≤0.7。如此，可使弹性连接部22的部分设于磁路间隙1的外侧，部分设于磁路间隙1的内侧。
可以理解的是，若所述第一比值K1过小，则会使所述音圈40过于靠近振膜20的外边缘，则无法有效减小扬声器100的厚度。若第一比值K1过大， 则会使所述音圈40过于靠近弹性连接部22的内边缘(即锥盆部21的外边缘)，则会大大压缩磁路系统的中心磁路的安装空间，从而不利于磁路系统的设计。故而，可选地，所述第一比值K1大于或等于0.3，且小于或等于0.7。
更为具体的，所述第一比值K1可选为大于或等于0.4，且小于或等于0.6，以在保证扬声器100的声学性能的前提下，进一步地减薄扬声器100。
进一步地，如图7和8所示，在过所述振膜20的中心线的截面内，所述弹性连接部22的内边缘(即锥盆部21的外边缘)与振膜20的中心线之间具有第三距离D1，所述音圈40与弹性连接部22的连接位置与振膜20的中心线之间具有第四距离D2，所述弹性连接部22的外边缘与振膜20的中心线之间具有第五距离D，所述第三距离D1与第五距离D之间具有第二比值K2，所述第二比值K2大于或等于0.15，且小于或等于0.55，即0.15≤K2＝D1/D≤0.55。
所述第四距离D2与第五距离D之间具有第三比值K3，所述第三比值K3大于或等于0.55，且小于或等于0.85，即0.55≤K3＝D2/D≤0.85。
具体的，所述第三比值大于第二比值
可以理解的是，所述第二比值K2表示锥盆部21相较于振膜20的比例大小，若第二比值K2过小，则会使锥盆部21所占的比例过小，则会大大减弱锥盆部21与弹波30之间的相互作用，从而会降低振膜20和振动系统的振动稳定性。若第二比值K2过大，则会使锥盆部21所占的比例过大，则会使振膜20在振动过程中容易与磁路系统发生干涉，从而不利于减薄扬声器100。基于此，可选地，所述第二比值K2K2大于或等于0.15，且小于或等于0.55。
更为具体的，所述第二比值K2大于或等于0.2，且小于或等于0.36，以既保证振膜20和振动系统的振动稳定性，又可实现减薄扬声器100。
可以理解的是，所述第三比值K3表示在所述振膜20振动同一振动幅度时，音圈40的振幅的增幅大小，若所述第三比值K3过小，则会使所述音圈40过于靠近振膜20的外边缘，则音圈40的振幅的增幅过小，则无法有效减小扬声器100的厚度。若第三比值K3过大，则会使所述音圈40过于靠近弹性连接部22的内边缘(即锥盆部21的外边缘)，则会大大压缩磁路系统的中心磁路的安装空间，从而不利于磁路系统的设计和扬声器100的声学性能的提升。故而，可选地，所述第三比值K3大于或等于0.55，且小于或等于 0.85。
更为具体的，所述第三比值K3可选为大于或等于0.6，且小于或等于0.7，以在保证扬声器100的声学性能的前提下，进一步地减薄扬声器100。
需要特别指出的是，以上第二比值K2和第三比值K3的关系是紧密关联的，所述第二比值K2的大小会影响第三比值K3。
可选地，所述第三距离D1与第四距离D2之间的比值为黄金分割比例(即0.618)，且所述第四距离D2与第五距离D之间的比值(即第三比值K3)为黄金分割比例。如此，既可以较好的提高扬声器100的声学性能，又可以较大程度地减薄扬声器100。
可选地，所述弹性连接部22的内边缘(即锥盆部21的外边缘)与所述弹性连接部22的外边缘之间的距离与五距离D之间的比值也为黄金分割比例。
根据以上结构设置，可使所述音圈40的最大振幅大于或等于2毫米，且小于或等于4毫米，以实现扬声器100的大振幅输出。更为具体的，可使所述音圈40的最大振幅大于或等于2.5毫米，且小于或等于3毫米。
根据以上结构设置，可使所述扬声器100的整体厚度大于或等于7毫米，且小于或等于12毫米，以实现扬声器100的超薄化设计。更为具体的，可使所述扬声器100的整体厚度大于或等于8毫米，且小于或等于10毫米，以进一步地实现扬声器100的超薄化设计。
进一步地，如图7所示，所述弹波30的一端连接于锥盆部21的底部，另一端连接于磁路系统。如此，通过将弹波30连接于锥盆部21的底部，可使弹波30更为有效的防止振膜20在振动的过程中晃动，以较好地提高振膜20和振动系统的振动稳定性。
在具体实施例中，如图7、9-12所示，所述磁路系统的构形式有很多，下文将结合磁路间隙1和锥盆振动空间2的形成方式举例进行说明；需要说明的是，所述磁路系统的结构形式包括但不限于以下几种。
进一步地，如图6-8所示，所述磁路系统包括第一导磁件50和中心磁路，所述第一导磁件50包括第一基板51和凸设于所述第一基板51表面、且呈环形分布的第一导磁凸部52，所述中心磁路设于所述第一导磁凸部52的内侧，所述中心磁路与所述第一导磁凸部52之间形成所述磁路间隙1，所述中心磁 路上形成所述锥盆振动空间2，所述弹波30连接于中心磁路。
在本实施例中，导磁件(如第一导磁件50、和下文中的第二导磁件62、第三导磁件70等)可采用导磁性能良好的材料制成，以用于聚磁、导磁等；例如导磁件的制作材料包括但不限于低碳钢、纯铁和合金等中的一种或多种。
需要说明的是，本发明中，“呈环形分布的第一导磁凸部52”至少具有以下两种含义：
1)所述第一导磁凸部52设置为环形结构。
2)所述第一导磁凸部52间隔设置有多个，多个第一导磁凸部52围合形成一环形结构。
以下具有类似的描述，可同样作此解释，不必一一赘述。
在本实施例中，如图6-8所示，所述第一导磁凸部52设置为环形结构。以简化磁路系统的结构设计，增强磁路间隙1的聚磁效用。
进一步地，如图6-8所示，所述第一导磁件50还包括凸设于所述第一基板51表面、且呈环形分布的第二导磁凸部53，所述第二导磁凸部53间隔设于第一导磁凸部52的内侧，所述第一导磁凸部52凸出于第二导磁凸部53。
所述中心磁路包括第二导磁凸部53、呈环形分布的第一磁体1、和呈环形设置第二导磁件62，所述第二导磁件62和第一磁体1依次叠设于第二导磁凸部53，所述第一磁体1设于第二导磁件62和第二导磁凸部53之间；所述第二导磁件62与第一导磁凸部52之间形成磁路间隙1，所述第二导磁凸部53、第一磁体1和第二导磁件62的内侧形成锥盆振动空间2。
在本实施例中，磁体(如第一磁体1、和下文中的第二磁体81等)可采用硬磁性材料烧结而成，其作用是提供具有一定磁感应密度的恒磁场，可以为但不限于铁氧体磁体、铝镍钴磁体或钕铁硼磁体。
如此，通过将第二导磁凸部53一体成形于第一基板51上，不仅可提高磁路系统的聚磁和导磁效用；还可减少相应组装步骤，简化扬声器100的安装过程。
在本实施例中，如图6-8所示，所述第一磁体1设置为环形结构，第二导磁凸部53设置为环形结构，所述第二导磁件62设置为环形结构。
在本实施例中，可选地，如图6-8所示，在所述磁路系统在振膜20上的投影中，所述锥盆部21的外边缘位于第二导磁件62的内缘的内侧。
当然，于其他实施例中，所述中心磁路也可以设置为其他结构形式，如，可使所述第二导磁凸部53与第一基板51分体装配设置。
进一步地，如图6-8所示，所述第一磁体1的内缘向内侧向凸出于第二导磁凸部53，所述弹波30连接于第一磁体1的内缘的下表面，所述弹波30的另一端连接于锥盆部21。
如此，通过将所述弹波30连接于第一磁体1的内缘的下表面，可便于提高弹波30与磁路系统之间的连接强度，从而可提高弹波30和振膜20的振动稳定性。
当然，于其他实施例中，所述弹波30还可连接于中心磁路的其他位置，如第二导磁件62或第二导磁凸部53等。
进一步地，如图6-8所示，所述扬声器100还包括隔热件90，所述隔热件90设于所述磁路系统，所述弹波30连接于隔热件90。可以理解的是，当扬声器100工作时，磁路系统的温度较高，通过设置隔热件90以连接弹波30和磁路系统，可避免磁路系统的高温影响弹波30与磁路系统之间的连接强度，从而可提高弹波30和振膜20的振动稳定性。
具体的，所述隔热件90设于中心磁路上；更为具体的，所述隔热件90设于所述第一磁体1的内缘的下表面，所述弹波30连接于隔热件90的下表面。如此，既可以避免第一磁体1工作时的高温破坏弹波30和弹波30与第一磁体1之间的连接结构，从而可提高弹波30与第一磁体1之间的连接稳定性，以提高弹波30和振膜20的振动稳定性；还可以提高弹波30与第一磁体1之间的连接强度，以提高弹波30和振膜20的振动稳定性。
进一步地，如图6-8所示，所述第一基板51上开设有与锥盆振动空间2连通的散热通孔511，所述扬声器100还包括散热件512，所述散热件512密封连接于所述散热通孔511。
具体的，所述散热件512可采用热传导性能较好的材料(如银、铜、铝或硅等)制成，以便于快速散热。
如此，通过设置散热件512以密封散热通孔511，不仅可与锥盆振动空间2等在扬声器100内形成密闭空间，以使振膜20和弹波30在该密闭空间内运动，从而能够有效地避免音圈40摇摆、擦圈等问题，还可以通过散热件512快速地进行散热，以避免扬声器100内温度过高。
可选地，所述散热通孔511的尺寸大于第二导磁凸部53的内径的尺寸，以使所述第二导磁凸部53中间的内环孔设于散热通孔511的底部，以便于安装散热件512。
可选地，所述散热件512的远离锥盆振动空间2的表面设有散热结构，如此可进一步地加快散热速度。
进一步地，如图6-8所示，所述第一基板51的外缘向外侧向凸出于第一导磁凸部52；所述支架10的底部连接于第一基板51的外缘。如此，可不必在支架10上增设专门的连接结构以与磁路系统连接。
一并参阅图3，所述支架10包括底板11和凸设于底板11表面的围板12，所述底板11上设有安装通孔111，所述第一导磁件50设于安装通孔111内，且所述底板11连接于第一基板51的外缘的上表面，所述弹性连接部22连接于围板12。如此，可在便于连接支架10和第一导磁件50的基础上，可增加支架10与第一导磁件50的连接强度，以提高扬声器100的整体稳定性。
可以理解的是，由于音圈40连接在弹性连接部22的内侧，那么弹性连接部22的外缘必定向外侧向凸出于第一导磁凸部52，为了便于固定弹性连接部22和便于弹性连接部22振动，可使围板12与第一导磁凸部52之间设有一定预设距离，该一定预设距离可根据音圈40在弹性连接部22上的连接位置和折环24的径向尺寸等来确定，即需要增大支架10和扬声器100的径向尺寸，以实现减薄扬声器100的厚度。
在具体实施中，所述扬声器100通常还包括折环24，所述折环24的内边缘连接于弹性连接部22的外边缘，所述折环24的外边缘连接于支架10上。
在本实施例中，具体的，所述支架10还包括由围板12上端向外折弯延伸形成的连接环板13，所述连接环板13为环形连接板，所述弹性连接部22连接于连接环板13的上表面。更为具体的，所述折环24的外边缘连接于连接环板13的上表面。如此，可便于增大折环24与支架10的连接面积，以便于提高折环24与支架10之间的连接强度和连接稳定性。
可选地，如图3所示，所述连接环板13的外边缘设有向上的折边14，以至少保护折环24。
进一步地，如图5和7所示，所述音圈40具有引线43，所述引线43部分固定于所述弹性连接部22的下表面。如此，可使引线43随振膜20一起振 动，以降低引线43对音圈40和振膜20振动的影响，以进一步地提高音圈40和振膜20的振动稳定性。
可选地，所述音圈40包括音圈骨架41和围绕部分音圈骨架41缠绕的线圈42，音圈骨架41的上端连接于弹性连接部22，线圈42设于磁路间隙1内。更为具体的，如图7所示，所述线圈42具有引线43，所述引线43靠近音圈40的一端向上延伸地设置于音圈骨架41的表面。
当音圈40连接于弹性连接部22上时，可使所述引线43靠近音圈40的一端向外延伸地设置于弹性连接部22的下表面，以使引线43部分固定于所述弹性连接部22的下表面。
可选地，如图5和7所示，所述引线43具有两根，两根所述引线43对称地设置于音圈40的两侧。
具体的，如图7所示，所述支架10上还设有接线端子15，所述引线43与该接线端子15电连接。
可选地，所述接线端子15在支架10上对称地设置有两个，该两个接线端子15一一对应电连接于两根引线43。
具体的，所述弹性连接部22为平面振膜结构。
可选地，如图4和7所示，所述弹性连接部22包括在振膜20的中心线的延伸方向上间隔分布的第一环形连接部221和第二环形连接部222，所述第一环形连接部221和第二环形连接部222光滑连接，所述第一环形连接部221设于第二环形连接部222的外周，所述第一环形连接部221连接于支架10，所述第二环形连接部222连接于锥盆部21的外周。
可选地，如图4和7所示，所述第一环形连接部221和第二环形连接部222均为平面振膜结构。
可选地，如图4和7所示，所述弹性连接部22上分布有多个隆起部23，如此，至少可增强弹性连接部22的结构强度。
可选地，如图4和7所示，多个所述隆起部23呈环形地分布于锥盆部21的周侧。
可选地，如图4和7所示，所述隆起部23自内向外延伸，且所述隆起部23呈偏转设置。
可选地，如图1、4和7所示，所述隆起部23呈弧状设置。
在本发明另一实施例中，如图9和10所示，所述磁路系统包括第三导磁件70和边磁路，所述第三导磁件70包括第二基板71和凸设于所述第二基板71表面的环形导磁部72，所述边磁路设于环形导磁部72的周侧，所述环形导磁部72与边磁路之间形成所述磁路间隙1，所述环形导磁部72的内侧形成锥盆振动空间2。可选地，所述弹波30的一端连接于环形导磁部72的内侧壁，另一端连接于锥盆部21的底部。
在该实施例中，具体的，如图9和10所示，所述边磁路包括呈环形分布的第二磁体81和呈环形分布的第四导磁件82，所述第二磁体81和第四导磁件82依次叠设于第二基板71表面，且所述第二磁体81设于第四导磁件82与所述第二基板71之间；所述环形导磁部72与第四导磁件82之间形成磁路间隙1。
在该实施例中，可选地，所述环形导磁部72的内侧壁凸设有内连接部(图未示)，所述弹波30连接于该内连接部的下表面。
在该实施例中，可选地，也可以在弹波30和环形导磁部72之间设置隔热件90。更为具体的，所述隔热件90可设于内连接部的下表面；或者，也可不设置内连接部，而直接将隔热件90连接于环形导磁部72的内侧面，然后使隔热件90与弹波30连接。
在该实施例中，如图9和10所示，所述散热通孔511开设于第二基板71上，以实现与锥盆振动空间2连通，散热件512密封连接与散热通孔511内。在该实施例中，可选地，所述散热通孔511为阶梯孔，以便于安装散热件512。
在该实施例中，所述支架10的结构与上一实施例基本相同，如，所述支架10包括底板11、围板12、连接环板13和折边14等，在此不必详述。
需要说明的是，在该实施例中，所述支架10与磁路系统的连接关系做适应性改变；具体的，如图9和10所示，所述环形导磁部72安装在底板11上的安装通孔111内，且所述第二基板71的外缘向外侧向凸出于环形导磁部72，所述底板11连接于所述第二基板71的外缘的上表面。
在本发明又一实施例中，其与本实施例的另一实施例的区别在于，该实施例中，在所述环形导磁部72上端还设有第五导磁件73。
即是说，在该实施例中，如图11和12所示，所述磁路系统包括第三导磁件70、第五导磁件73和边磁路，所述第三导磁件70包括第二基板71和凸设于第二基板71表面的环形导磁部72，所述边磁路设于环形导磁部72的周侧，所述第五导磁件73呈环形分布于环形导磁部72的上端，所述第五导磁件73与所述边磁路之间形成所述磁路间隙1，所述环形导磁部72和所述第五导磁件73的内侧形成所述锥盆振动空间2。
在该实施例中，如图11和12所示，可选地，所述第五导磁件73的内缘向内侧向凸出于环形导磁部72，所述弹波30的一端连接于第五导磁件73的内缘的下表面，所述弹波30的另一端连接于锥盆部21。
在该实施例中，如图11和12所示，可选地，也可以在弹波30和磁路系统之间设置隔热件90。更为具体的，所述隔热件90可设于第五导磁件73的内缘的下表面。
在该实施例中，如图11和12所示，可选地，所述边磁路和支架10的结构与上一实施例基本相同，如，所述边磁路包括第二磁体81和第四导磁件82等；所述支架10包括底板11、围板12、连接环板13和折边14等；在此不必详述。
需要说明的是，本发明示例中的扬声器100，能够承受较大的功率，其功率能达到15W以上；且所述扬声器100超薄，灵敏度高，谐振频率低。
本发明还提出一种音频设备，该音频设备包括扬声器，该扬声器的具体结构参照上述实施例，由于本发明音频设备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。
其中，所述音频设备可选为液晶显示器、或电视等
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 (17)

  1. 一种扬声器，其特征在于，包括：
    支架；
    磁路系统，安装于所述支架，所述磁路系统具有磁路间隙和设于所述磁路间隙内侧的锥盆振动空间；以及
    振动系统，所述振动系统包括振膜、弹波和音圈，所述振膜包括锥盆部和连接于所述锥盆部外周的弹性连接部，所述弹性连接部的外边缘连接于所述支架，所述锥盆部的底部设于所述锥盆振动空间内，所述弹波连接所述锥盆部和所述磁路系统；所述音圈的一端连接于所述弹性连接部，所述音圈的另一端伸入所述磁路间隙内。
  2. 如权利要求1所述的扬声器，其特征在于，所述弹性连接部的内边缘和外边缘之间具有预设环形区域，所述音圈连接于所述预设环形区域内，以在所述振膜振动同一振动幅度时，增大所述音圈的振幅。
  3. 如权利要求2所述的扬声器，其特征在于，在过所述振膜的中心线的截面内，所述音圈与所述弹性连接部的连接位置与所述弹性连接部的内边缘之间具有第一距离D4，所述弹性连接部的内边缘与外边缘之间具有第二距离D3，所述第一距离D4与所述第二距离D3具有第一比值，所述第一比值大于或等于0.3，且小于或等于0.7。
  4. 如权利要求2所述的扬声器，其特征在于，在过所述振膜的中心线的截面内，所述弹性连接部的内边缘与所述振膜的中心线之间具有第三距离D1，所述音圈与所述弹性连接部的连接位置与所述振膜的中心线之间具有第四距离D2，所述弹性连接部的外边缘与所述振膜的中心线之间具有第五距离D，所述第三距离D1与所述第五距离D之间具有第二比值，所述第二比值大于或等于0.15，且小于0.55；所述第四距离D2与所述第五距离D之间具有第三比值，所述第三比值大于或等于0.55，且小于或等于0.85；所述第三比值大于所述第二比值。
  5. 如权利要求1所述的扬声器，其特征在于，所述扬声器的整体厚度大于或等于7毫米，且小于或等于12毫米。
  6. 如权利要求1所述的扬声器，其特征在于，所述弹波的一端连接于所述锥盆部的底部，另一端连接于所述磁路系统。
  7. 如权利要求1至6中任意一项所述的扬声器，其特征在于，所述磁路系统包括第一导磁件和中心磁路，所述第一导磁件包括第一基板和凸设于所述第一基板表面、且呈环形分布的第一导磁凸部，所述中心磁路设于所述第一导磁凸部的内侧，所述中心磁路与所述第一导磁凸部之间形成所述磁路间隙，所述中心磁路的中部形成所述锥盆振动空间。
  8. 如权利要求7所述的扬声器，其特征在于，所述第一导磁件还包括凸设于所述第一基板表面、且呈环形分布的第二导磁凸部，所述第二导磁凸部设于所述第一导磁凸部的内侧，所述第一导磁凸部凸出于所述第二导磁凸部；
    所述中心磁路包括所述第二导磁凸部、呈环形分布的第一磁体、和呈环形设置第二导磁件，所述第二导磁件和所述第一磁体依次叠设于所述第二导磁凸部，所述第一磁体设于所述第二导磁件和所述第二导磁凸部之间；
    所述第二导磁件与所述第一导磁凸部之间形成所述磁路间隙，所述第二导磁凸部、所述第一磁体和所述第二导磁件的内侧形成所述锥盆振动空间。
  9. 如权利要求8所述的扬声器，其特征在于，所述第一磁体的内缘向内侧向凸出于所述第二导磁凸部，所述弹波连接于所述第一磁体的内缘的下表面，所述弹波的另一端连接于所述锥盆部。
  10. 如权利要求9所述的扬声器，其特征在于，所述扬声器还包括隔热件，所述隔热件设于所述第一磁体的内缘的下表面，所述弹波连接于所述隔热件的下表面。
  11. 如权利要求7所述的扬声器，其特征在于，所述第一基板上开设有与所述锥盆振动空间连通的散热通孔，所述扬声器还包括散热件，所述散热件密封连接于所述散热通孔。
  12. 如权利要求7所述的扬声器，其特征在于，所述第一基板的外缘向外侧向凸出于所述第一导磁凸部；所述支架包括底板和凸设于所述底板表面的围板，所述底板上设有安装通孔，所述第一导磁件设于所述安装通孔内，且所述底板连接于所述第一基板的外缘的上表面。
  13. 如权利要求1至6中任意一项所述的扬声器，其特征在于，所述磁路系统包括第三导磁件和边磁路，所述第三导磁件包括第二基板和凸设于所述第二基板表面的环形导磁部，所述边磁路设于所述环形导磁部的周侧，所述环形导磁部与所述边磁路之间形成所述磁路间隙，所述环形导磁部内侧形成所述锥盆振动空间。
  14. 如权利要求13所述的扬声器，其特征在于，所述边磁路包括呈环形分布的第二磁体和呈环形分布的第四导磁件，所述第二磁体和所述第四导磁件依次叠设于所述第二基板表面，且所述第二磁体设于所述第四导磁件与所述第二基板之间；所述环形导磁部与所述第四导磁件之间形成所述磁路间隙。
  15. 如权利要求1至6中任意一项所述的扬声器，其特征在于，所述磁路系统包括第三导磁件、第五导磁件和边磁路，所述第三导磁件包括第二基板和凸设于所述第二基板表面的环形导磁部，所述边磁路设于所述环形导磁部的周侧，所述第五导磁件呈环形分布于所述环形导磁部的上端，所述第五导磁件与所述边磁路之间形成所述磁路间隙，所述环形导磁部和所述第五导磁件的内侧形成所述锥盆振动空间；
    所述第五导磁件的内缘向内侧向凸出于所述环形导磁部，所述弹波的一端连接于所述第五导磁件的内缘的下表面，所述弹波的另一端连接于所述锥盆部。
  16. 如权利要求1至6中任意一项所述的扬声器，其特征在于，所述音圈具有引线，所述引线部分固定于所述弹性连接部的下表面。
  17. 一种音频装置，其特征在于，包括如权利要求1至16中任意一项所述的扬声器。
PCT/CN2019/129007 2019-08-07 2019-12-27 扬声器和音频装置 WO2021022774A1 (zh)

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