WO2018103190A1 - 锥盆式的扬声器膜片和扬声器 - Google Patents

锥盆式的扬声器膜片和扬声器 Download PDF

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Publication number
WO2018103190A1
WO2018103190A1 PCT/CN2017/072465 CN2017072465W WO2018103190A1 WO 2018103190 A1 WO2018103190 A1 WO 2018103190A1 CN 2017072465 W CN2017072465 W CN 2017072465W WO 2018103190 A1 WO2018103190 A1 WO 2018103190A1
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WO
WIPO (PCT)
Prior art keywords
cone
folding ring
additional
speaker
outer edge
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PCT/CN2017/072465
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English (en)
French (fr)
Inventor
文章峰
李志�
强寿松
杨健斌
Original Assignee
歌尔丹拿音响有限公司
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Publication of WO2018103190A1 publication Critical patent/WO2018103190A1/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
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones
    • H04R7/127—Non-planar diaphragms or cones dome-shaped
    • 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
    • H04R2400/00—Loudspeakers
    • H04R2400/11—Aspects regarding the frame of loudspeaker transducers

Definitions

  • the present invention relates to electroacoustic conversion technology, and more particularly to a cone-shaped speaker diaphragm and a speaker.
  • the speaker is also called "horn". It is a common electro-acoustic transducing device. It is usually used as the sound source of the speaker. It is the last level of sound reproduction, and its quality plays a decisive role in the restoration of sound.
  • A-A' is its axial direction, the upper view is a side view, and the lower view is a top view.
  • the washer 400, the magnet 500 and the T-iron 600 cooperate to form a magnetic gap, and constitute a magnetic circuit system fixedly connected to the basin frame 300.
  • the voice coil 100 is suspended in the magnetic gap; the top of the cone-shaped diaphragm is covered with a dust cover 700; the cone-shaped diaphragm, the voice coil 100, the elastic wave 200, and the dust cover 700 are connected by glue bonding or the like. Together, the vibration system that makes up the speaker.
  • the cone-shaped diaphragm is formed by bonding the cone 1 and the folding ring 2, and an opening is arranged in the middle of the cone 1.
  • the folding ring 2 is annular, and the folding ring 2 includes a connecting portion 21 and a folding ring body 22 in order from the inside to the outside.
  • the outer edge 23 of the folding ring, the outer edge 23 of the folding ring is connected with the basin frame 300, and the connecting portion 21 is fixedly connected to the upper surface of the outer edge of the cone 1.
  • the inner edge of the cone 1 is fixedly connected with the voice coil 100.
  • 16-17 is a schematic diagram of a frequency response curve of a cone-type speaker, wherein curve a is a frequency response curve of a cone-type speaker in the prior art.
  • curve a is a frequency response curve of a cone-type speaker in the prior art.
  • the cone in the prior art The high-frequency resonance peak appears in the frequency range of 1000hz to 10000hz. This type of peak will greatly affect the sound quality of the speaker. The concert in this part is particularly harsh.
  • a cone-shaped speaker diaphragm comprising a cone and a folding ring, wherein the folding ring is annular; the folding ring comprises, in order from the inside to the outside, a connecting portion and a folding ring body. And an outer edge of the folding ring; the connecting portion comprising an annular structure on the outer side and at least two additional structures on the inner side, wherein at least one additional structure is different from at least one of the other additional structures from the center of the cone; The connecting portion of the folding ring is fixedly coupled to the upper surface of the outer edge of the cone.
  • the folding ring is an integrally formed structure.
  • the annular structure and the additional structure have the same thickness.
  • the additional structure is curved, and the outer arc of the additional structure is connected to the inner arc of the annular structure.
  • a cone-shaped speaker diaphragm comprising a cone and a folding ring, wherein the folding ring is annular; the folding ring comprises, in order from the inside to the outside, a connecting portion and a folding ring body. And an outer edge of the folding ring; the cone includes a cone body and at least two additional structures attached to a lower surface of the cone body, wherein at least one of the additional structure and at least one of the additional structures is at a distance from the center of the cone The distance of the fold is fixedly connected to the upper surface of the outer edge of the cone body.
  • the additional structure is in the form of a sheet having an upper surface that conforms to a lower surface of an outer edge of the cone body.
  • the additional structure is curved, and the outer arc of the additional structure coincides with the curvature of the outer edge of the cone body.
  • the cone is an integrally formed structure.
  • a speaker having a cone-type speaker diaphragm according to any of the preceding claims.
  • the mass of the additional structure that is closer to the center of the cone is greater than the mass of the additional structure that is relatively far from the center of the cone.
  • the additional structure is two, the relatively additional structure of the center of the cone is located on a side opposite to the lead of the voice coil, and the additional structure at a distance from the center of the cone is located in the voice coil. One side of the lead.
  • the additional structure is three, wherein two additional structures are located on a side opposite the lead of the voice coil, and another additional structure is located on one side of the voice coil lead.
  • the cone-type speaker diaphragm provided by the present invention can improve the sound quality of the speaker.
  • FIG. 1 is a schematic structural view of a prior art cone-type speaker.
  • FIG. 2 is a schematic structural view of a cone-type speaker according to a first embodiment of the present invention.
  • FIG 3 is a schematic structural view of a cone-type speaker provided by a second embodiment of the present invention.
  • FIG. 4 is a schematic structural view of a cone type speaker provided by a third embodiment of the present invention.
  • FIG. 5 is a schematic structural view of a cone type speaker according to a fourth embodiment of the present invention.
  • FIG. 6 is a schematic structural view of a cone-type speaker according to a fifth embodiment of the present invention.
  • FIG. 7 is a schematic structural view of a cone-type speaker according to a sixth embodiment of the present invention.
  • Figure 8 is a partially enlarged schematic view showing a sixth embodiment of the present invention.
  • FIG. 9 is a schematic structural view of a cone-type speaker according to a seventh embodiment of the present invention.
  • FIG. 10 is a schematic structural view of a cone-type speaker according to an eighth embodiment of the present invention.
  • Figure 11 is a partially enlarged schematic view showing an eighth embodiment of the present invention.
  • FIG. 12 is a schematic structural view of a cone-type speaker according to a ninth embodiment of the present invention.
  • FIG. 13 is a schematic structural view of a cone-type speaker according to a tenth embodiment of the present invention.
  • FIG. 14 is a schematic structural view of a cone-type speaker according to an eleventh embodiment of the present invention.
  • Figure 15 is a block diagram showing the structure of a cone-type speaker according to a twelfth embodiment of the present invention.
  • Figure 16-17 is a schematic diagram of the frequency response curve of a cone-type speaker.
  • the cone-shaped speaker diaphragm comprises a cone 1 and a folding ring 2, and an opening is provided in the middle of the cone 1 and the folding ring 2 is annular.
  • the folding ring 2 includes a connecting portion 21, a folding ring main body 22, and a folded outer edge 23 in order from the inside to the outside.
  • the connecting portion 21 of the folding ring 2 includes an annular structure 211 on the outer side and two additional structures 212 on the inner side.
  • the connecting portion 21 of the folding ring 2 can be fixedly coupled to the upper surface of the outer edge of the cone 1 by bonding or the like.
  • the outer edge 23 of the folding ring 2 is connected to the basin frame.
  • the cone-shaped speaker diaphragm comprises a cone 1 and a folding ring 2, and an opening is provided in the middle of the cone 1 and the folding ring 2 is annular.
  • the folding ring 2 includes a connecting portion 21, a folding ring main body 22, and a folded outer edge 23 in order from the inside to the outside.
  • the connecting portion 21 of the folding ring 2 includes an annular structure 211 located on the outer side and Three additional structures 212 on the inside.
  • the connecting portion 21 of the folding ring 2 can be fixedly coupled to the upper surface of the outer edge of the cone 1 by bonding or the like.
  • the outer edge 23 of the folding ring 2 is connected to the basin frame.
  • the cone-shaped speaker diaphragm comprises a cone 1 and a folding ring 2, and an opening is provided in the middle of the cone 1 and the folding ring 2 is annular.
  • the folding ring 2 includes a connecting portion 21, a folding ring main body 22, and a folded outer edge 23 in order from the inside to the outside.
  • the connecting portion 21 of the folding ring 2 includes an annular structure 211 on the outer side and four additional structures 212 on the inner side.
  • the connecting portion 21 of the folding ring 2 can be fixedly coupled to the upper surface of the outer edge of the cone 1 by bonding or the like.
  • the outer edge 23 of the folding ring 2 is connected to the basin frame.
  • the first to third embodiments provide an additional structure 212 at a plurality of positions of the connecting portion 21 of the folding ring 2, the additional structure 212 increasing the structural strength of the outer edge of the cone 1 at this position, and the outer edge of the cone 1 is attached
  • the vibration displacement at the structure 212 is significantly different from the other positions of the outer edge of the cone 1, changing the resonance state of the outer edge of the cone 1 at a specific frequency, as shown in Fig. 16, due to the destruction of the cone 1
  • the ring resonance at the edge makes the high-frequency resonance peak of the speaker more suppressed than the conventional design (frequency response curve b), or even lower (frequency response curve c).
  • FIG. 5 is a schematic structural view of a cone-shaped speaker diaphragm and a speaker according to a fourth embodiment of the present invention.
  • the structure of the fourth embodiment is somewhat similar to that of the first embodiment, the main difference being that, in the fourth embodiment, one of the additional structures 212 is relatively close to the center of the cone 1 and the other additional structure 212 is away from the cone 1. The center is relatively far away.
  • the lead of the voice coil is connected to the voice coil lead take-up device 800.
  • the additional structure 212 is designed in conjunction with the voice coil lead so that the mass of the additional structure 212 that is closer to the center of the cone is greater than the center of the cone.
  • the additional structure 212 of the additional structure 212 is located near the center of the cone of the voice coil and is located on the side opposite the lead of the voice coil.
  • the additional structure 212 is relatively far from the center of the cone and has a relatively small mass. It is located on the lead side of the voice coil to improve the imbalance of the speaker vibration system caused by the lead of the voice coil and solder, glue, etc., thereby improving the nonlinearity of the speaker vibration system and reducing the distortion of the speaker.
  • the connecting portion includes an annular structure 211 on the outer side and at least two additional structures 212 on the inner side, wherein at least one additional structure 212 and other additional knots At least one of the structures 212 is different from the center of the cone.
  • the additional structure 212 may be three, wherein at least one additional structure 212 is different from the distance of at least one of the other additional structures 212 from the center of the cone, wherein the two additional structures 212 are located at the lead with the voice coil.
  • another additional structure 212 is located on one side of the voice coil lead.
  • FIG. 6 is a schematic structural view of a cone-shaped speaker diaphragm and a speaker according to a fifth embodiment of the present invention.
  • the structure of the fifth embodiment is somewhat similar to that of the first embodiment, the main difference being that, in the fifth embodiment, the connecting portion 21 of the folding ring 2 includes an annular structure 211 located on the outer side and an additional structure 212 located on the inner side.
  • the fifth embodiment provides an additional structure 212 at a position of the connecting portion 21 of the folding ring 2, the additional structure 212 increasing the structural strength of the outer edge of the cone 1 at this position, the outer edge of the cone 1 at the additional structure 212
  • the vibration displacement is significantly different from the other positions of the outer edge of the cone 1, changing the resonance state at the outer edge of the cone 1 at a specific frequency, as shown in Fig. 17, due to the destruction of the ring at the outer edge of the cone 1
  • Resonance makes the high-frequency resonance peak of the speaker a certain degree of suppression compared to the conventional design (frequency response graph d).
  • the additional structure 212 can be designed in conjunction with the lead of the voice coil 100, the lead 101 of the voice coil 100 being connected to the voice coil lead take-up device 800, the additional structure 212 being located on the side opposite the lead 101 of the voice coil 100 for improving the voice coil
  • FIG. 7 is a schematic structural view of a cone-shaped speaker diaphragm and a speaker according to a sixth embodiment of the present invention
  • FIG. 8 is a partially enlarged schematic view of FIG. 7.
  • the structure of the sixth embodiment is similar to that of the fifth embodiment, except that in the sixth embodiment, a protruding structure 301 is provided at a specific position of the basin frame 300, and the outer edge 23 of the folding ring 1 is at a specific position.
  • the recessed structure 231 is matched with the protruding structure 301, and the positioning of the diaphragm on the basin frame is realized by the cooperation between the two, thereby solving the existing speaker structure, and the diaphragm can be at any angle on the basin frame. The problem of turning.
  • a recessed structure may be disposed at a specific position of the basin frame 300, and the outer edge 23 of the folding ring 1 is provided with a protruding structure that cooperates with the recessed structure at a specific position. It is also possible to achieve a combination of the two to achieve the positioning of the diaphragm on the basin frame.
  • the additional structure 212 needs to be located on the side opposite to the lead of the voice coil, it is necessary to position the diaphragm when the diaphragm is mounted such that the position of the additional structure 212 is aligned with the voice coil.
  • the opposite side of the lead, so the above recessed/protruding structure also facilitates the mounting of the speaker diaphragm.
  • FIG. 9 is a schematic structural view of a cone-shaped speaker diaphragm and a speaker according to a seventh embodiment of the present invention.
  • the structures of the seventh embodiment and the sixth embodiment are similar, the main difference being that, in the sixth embodiment, the position where the recess/projection structure is located is located directly opposite the lead of the voice coil, and in the seventh embodiment, the recess/ The protruding structure can be located at other locations.
  • FIG. 10 is a schematic structural view of a speaker according to an eighth embodiment of the present invention.
  • FIG. 11 is a partially enlarged schematic view of FIG.
  • the structure of the eighth embodiment is similar to that of the fifth embodiment. The difference is mainly that the frame 300 is provided with a positioning post 302.
  • the outer edge 23 of the folding ring is provided with a positioning hole 232 that cooperates with the positioning post 302.
  • the positioning post 302 passes through the positioning. Hole 232 is positioned to position the diaphragm.
  • the outer edge of the diaphragm is fixed on the support system, the outer edge of the diaphragm is provided with a recessed structure, and the support system is provided with a protruding structure that cooperates with the recessed structure of the diaphragm to position the diaphragm;
  • the support system includes a basin frame, an outer edge of the diaphragm is fixed to an upper surface of the basin frame, and the basin frame is provided with the protruding structure that cooperates with the concave structure of the diaphragm;
  • the recessed structure of the diaphragm has a recessed direction toward the center of the diaphragm.
  • the outer edge of the diaphragm is fixed on the support system, the outer edge of the diaphragm is provided with a protruding structure, and the support system is provided with a recessed structure that cooperates with the protruding structure of the diaphragm to position the diaphragm;
  • the support system includes a basin frame, an outer edge of the diaphragm is fixed to an upper surface of the basin frame, and the basin frame is provided with the recessed structure that cooperates with the protruding structure of the diaphragm;
  • the protruding direction of the protruding structure of the diaphragm faces away from the center of the diaphragm.
  • the outer edge of the diaphragm is fixed on the support system, the outer edge of the diaphragm is provided with a positioning post, and the support system is provided with a positioning hole or a positioning groove that cooperates with the positioning post, and the positioning post passes through the positioning hole or wears Positioning the positioning groove to position the diaphragm;
  • the support system includes a basin frame, an outer edge of the diaphragm is fixed to an upper surface of the basin frame, and the basin frame is provided A positioning hole or a positioning groove that cooperates with the positioning post.
  • the folding ring 2 in the first to eighth embodiments may be an integrally formed structure.
  • the thickness of the annular structure 211 and the additional structure 212 may be the same, and the connecting portion 21 may have a uniform thickness.
  • the additional structure 212 can be curved, with the outer arc of the additional structure 212 being connected to the inner arc of the annular structure 211.
  • the main difference between the first to eighth embodiments is the distribution and number of additional structures 212.
  • the number of the additional structures 212 may be one or plural.
  • the distribution of the additional structures 212 may be a symmetric distribution or an asymmetric distribution.
  • the additional structure 212 can also be evenly distributed.
  • the size, mass, area, and shape of the additional structure 212 may be the same or different.
  • the distance from the additional structure 212 to the center of the cone may be the same or different.
  • the additional structure 212 can be further designed in conjunction with voice coil leads to best balance the vibration of the speaker.
  • FIG. 12 is a schematic structural view of a cone-shaped speaker diaphragm and a speaker according to a ninth embodiment of the present invention.
  • the cone-shaped speaker diaphragm includes a cone 1 and a folding ring 2. An opening is provided in the middle of the cone 1 and the folding ring 2 is annular.
  • the folding ring 2 includes a connecting portion 21, a folding ring main body 22, and a folded outer edge 23 in order from the inside to the outside.
  • the cone 1 comprises a cone body 11 and two additional structures 12.
  • the connecting portion 21 of the folding ring 2 is fixedly coupled to the upper surface of the outer edge of the cone body 11.
  • the additional structure 12 of the cone 1 is in the form of a sheet, and the upper surface of the additional structure 12 is in contact with the lower surface of the outer edge of the cone body 11.
  • the outer edge 23 of the folding ring 2 is connected to the basin frame.
  • FIG. 13 is a schematic structural view of a cone-shaped speaker diaphragm and a speaker according to a tenth embodiment of the present invention.
  • the cone-shaped speaker diaphragm includes a cone 1 and a folding ring 2. An opening is provided in the middle of the cone 1 and the folding ring 2 is annular.
  • the folding ring 2 includes a connecting portion 21, a folding ring main body 22, and a folded outer edge 23 in order from the inside to the outside.
  • the cone 1 comprises a cone body 11 and three additional structures 12.
  • the connecting portion 21 of the folding ring 2 is fixedly coupled to the upper surface of the outer edge of the cone body 11.
  • the additional structure 12 of the cone 1 is in the form of a sheet, and the upper surface of the additional structure 12 is in contact with the lower surface of the outer edge of the cone body 11.
  • the outer edge 23 of the folding ring 2 is connected to the basin frame.
  • FIG. 14 is a schematic structural view of a cone-shaped speaker diaphragm and a speaker according to an eleventh embodiment of the present invention.
  • the cone-shaped speaker diaphragm includes a cone 1 and a folding ring 2. The middle of the cone 1 An opening is provided and the loop 2 is annular.
  • the folding ring 2 includes a connecting portion 21, a folding ring main body 22, and a folded outer edge 23 in order from the inside to the outside.
  • the cone 1 comprises a cone body 11 and four additional structures 12.
  • the connecting portion 21 of the folding ring 2 is fixedly coupled to the upper surface of the outer edge of the cone body 11.
  • the additional structure 12 of the cone 1 is in the form of a sheet, and the upper surface of the additional structure 12 is in contact with the lower surface of the outer edge of the cone body 11.
  • the outer edge 23 of the folding ring 2 is connected to the basin frame.
  • the ninth to eleventh embodiments provide an additional structure 12 at a plurality of positions of the outer edge of the cone 1 which increases the thickness of the outer edge of the cone 1 at this position, enhancing the outer edge of the cone 1
  • the structural strength of the position, the vibrational displacement of the outer edge of the cone 1 at the additional structure 12 is significantly different from the other positions of the outer edge of the cone 1, changing the resonance state of the outer edge of the cone 1 at a specific frequency, Referring to FIG. 16, since the ring resonance at the outer edge of the cone 1 is destroyed, the high-frequency resonance peak of the speaker is suppressed compared to the conventional design (frequency response graph b), or even decreased (frequency response graph c). .
  • Figure 15 is a schematic view showing the structure of a cone-shaped speaker diaphragm and a speaker according to a twelfth embodiment of the present invention.
  • the structures of the twelfth embodiment and the ninth embodiment are somewhat similar, the main difference being that in the twelfth embodiment, the cone 1 includes the cone body 11 and an additional structure 12.
  • the twelfth embodiment provides an additional structure 12 at a position of the outer edge of the cone 1 which increases the thickness of the outer edge of the cone 1 at this position, enhancing the structure of the outer edge of the cone 1 at this position Intensity, the vibrational displacement of the outer edge of the cone 1 at the additional structure 12 is significantly different from the other positions of the outer edge of the cone 1, changing the resonance state of the outer edge of the cone 1 at a specific frequency, see FIG. It is shown that the ring resonance of the outer edge of the cone 1 is destroyed, so that the high-frequency resonance peak of the speaker is suppressed to some extent compared with the conventional design (frequency response graph d).
  • the additional structure 12 can be designed in conjunction with the lead of the voice coil 100, the lead 101 of the voice coil 100 being connected to the voice coil lead take-up device 800, the additional structure 12 being located on the side opposite the lead 101 of the voice coil 100 for improving the voice coil
  • a protruding structure 301 is disposed at a specific position of the basin frame 300.
  • the outer edge 23 of the folding ring 1 is provided with a concave structure 231 at a specific position to cooperate with the protruding structure 301.
  • a recessed structure may be provided at a specific position of the basin frame 300.
  • the outer edge 23 of the folding ring 1 is provided with a protruding structure at a specific position to cooperate with the concave structure, and two can also be realized. The cooperation of the person to achieve the positioning of the diaphragm on the basin frame.
  • the additional structure 12 needs to be located on the side opposite to the lead of the voice coil, it is necessary to position the diaphragm when the diaphragm is mounted so that the position and alignment of the additional structure 12 are aligned.
  • the opposite side of the lead of the loop, so the above recessed/protruding structure also facilitates the mounting of the speaker diaphragm.
  • the cone 1 in the ninth to twelfth embodiments may be an integrally formed structure.
  • the additional structure 12 of the cone 1 can be curved.
  • the outer arc of the additional structure 12 coincides with the arc of the outer edge of the cone body 11.
  • the main difference of the ninth to twelfth embodiments is the distribution and number of additional structures 12.
  • the number of the additional structures 12 may be one or plural.
  • the distribution of the additional structures 12 may be a symmetric distribution or an asymmetric distribution.
  • the additional structure 12 can also be evenly distributed.
  • the size, mass, area, and shape of the additional structure 12 may be the same or different.
  • the distance from the additional structure 12 to the center of the cone may be the same or different.
  • the additional structure 12 can be further designed in conjunction with voice coil leads to maximize the balance of speaker vibration.
  • the cone 1 comprises a cone body 11 and at least two additional structures 12, wherein at least one additional structure 12 differs from at least one of the other additional structures 12 by a distance from the center of the cone.
  • the additional structure 12 may be three, wherein at least one additional structure 12 is different from at least one of the other additional structures 12 from the center of the cone, wherein the two additional structures 12 are located at the lead with the voice coil. On the opposite side, another additional structure 12 is located on one side of the voice coil lead.
  • the cone 1 comprises a cone body 11 and two additional structures 12, wherein one additional structure 12 is relatively close to the center of the cone 1 and the other additional structure 12 is relatively close to the center of the cone 1
  • the additional structure 12 can be further designed in conjunction with voice coil leads such that the mass of the additional structure 12 that is closer to the center of the cone is greater than the mass of the additional structure 12 that is relatively far from the center of the cone, which is closer to the center of the cone
  • the additional quality of the additional knot The structure 12 is located on the side opposite to the lead of the voice coil, and the additional structure 12 which is far away from the center of the cone and has a relatively small mass is located on the lead side of the voice coil for improving the lead wire of the voice coil, solder, glue, etc.
  • the imbalance of the speaker vibration system is caused, thereby improving the nonlinearity of the speaker vibration system and reducing the distortion of the speaker.

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  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
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  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

本发明公开了一种锥盆式的扬声器膜片和一种扬声器，所述锥盆式的扬声器膜片包括锥盆和折环，所述折环为环形；所述折环从内向外依次包括：连接部、折环主体、以及折环外边缘；所述连接部包括位于外侧的环形结构和位于内侧的至少两个附加结构，其中至少一个附加结构与其它附加结构中的至少一个距离锥盆中心的距离不同；所述折环的连接部固定连接于所述锥盆的外边缘的上表面。本发明的扬声器膜片能够改善扬声器的音质。

Description

锥盆式的扬声器膜片和扬声器 技术领域
本发明涉及电声转换技术，更具体地，涉及一种锥盆式的扬声器膜片和一种扬声器。
背景技术
扬声器又称“喇叭”，是一种常见的电声换能器件，通常作为音箱的发声源使用，是声音重放的最后一关，其好坏对声音的还原起着决定性的作用。
锥盆式扬声器的部分结构参见图1所示，A-A’为其轴向，上图为侧视图，下图为俯视图。华司400、磁铁500和T铁600配合形成磁间隙，构成与盆架300固定连接的磁路系统。音圈100悬置于磁间隙内；锥盆式膜片的上方盖有防尘罩700；锥盆式膜片、音圈100、弹波200、以及防尘罩700通过胶水粘接等方式连接在一起，组成扬声器的振动系统。锥盆式膜片由锥盆1和折环2粘接而成，锥盆1的中间设置有开口，折环2为环形，折环2从内向外依次包括连接部21、折环主体22、以及折环外边缘23，折环外边缘23与盆架300连接，连接部21固定连接于锥盆1的外边缘的上表面，锥盆1的内边缘与音圈100固定连接。
图16-17为锥盆式扬声器的频响曲线示意图，其中曲线a为现有技术中的锥盆式扬声器的频响曲线，从频响曲线a中可以看出，现有技术中的锥盆式扬声器在1000hz到10000hz的频率区间内会出现高频谐振峰，这种类型的峰值会极大的影响扬声器的音质，在此部分的音乐会特别刺耳。
发明内容
本发明的一个目的是提供一种锥盆式的扬声器膜片，能够改善扬声器 的音质。
根据本发明的第一方面，提供了一种锥盆式的扬声器膜片，包括锥盆和折环，所述折环为环形；所述折环从内向外依次包括：连接部、折环主体、以及折环外边缘；所述连接部包括位于外侧的环形结构和位于内侧的至少两个附加结构，其中至少一个附加结构与其它附加结构中的至少一个距离锥盆中心的距离不同；所述折环的连接部固定连接于所述锥盆的外边缘的上表面。
可选地，所述折环为一体成型结构。
可选地，所述环形结构和所述附加结构的厚度相同。
可选地，所述附加结构为弧形，所述附加结构的外弧和所述环形结构的内弧连接。
根据本发明的第二方面，提供了一种锥盆式的扬声器膜片，包括锥盆和折环，所述折环为环形；所述折环从内向外依次包括：连接部、折环主体、以及折环外边缘；所述锥盆包括锥盆主体和至少两个附加在所述锥盆主体的下表面的附加结构，其中至少一个附加结构与其它附加结构中的至少一个距离锥盆中心的距离不同；所述折环的连接部固定连接于所述锥盆主体的外边缘的上表面。
可选地，所述附加结构为片状，其上表面与所述锥盆主体的外边缘的下表面贴合。
可选地，所述附加结构为弧形，所述附加结构的外弧和所述锥盆主体的外边缘的弧度一致。
可选地，所述锥盆为一体成型结构。
根据本发明的第三方面，提供了一种扬声器，具有根据前述任一项所述的锥盆式的扬声器膜片。
可选地，距离锥盆中心比较近的附加结构的质量大于距离锥盆中心比较远的附加结构的质量。
可选地，所述附加结构为两个，所述距离锥盆中心的比较近的附加结构位于与音圈的引线相对的一侧，所述距离锥盆中心比较远的附加结构位于音圈的引线一侧。
可选地，所述附加结构为三个，其中两个附加结构位于与音圈的引线相对的一侧，另外一个附加结构位于音圈引线一侧。
本发明提供的锥盆式的扬声器膜片，能够改善扬声器的音质。
通过以下参照附图对本发明的示例性实施例的详细描述，本发明的其它特征及其优点将会变得清楚。
附图说明
被结合在说明书中并构成说明书的一部分的附图示出了本发明的实施例，并且连同其说明一起用于解释本发明的原理。
被结合在说明书中并构成说明书的一部分的附图示出了本发明的实施例，并且连同其说明一起用于解释本发明的原理。
图1是现有技术中的锥盆式扬声器的结构示意图。
图2是本发明第一实施例提供的锥盆式扬声器的结构示意图。
图3是本发明第二实施例提供的锥盆式扬声器的结构示意图。
图4是本发明第三实施例提供的锥盆式扬声器的结构示意图。
图5是本发明第四实施例提供的锥盆式扬声器的结构示意图。
图6是本发明第五实施例提供的锥盆式扬声器的结构示意图。
图7是本发明第六实施例提供的锥盆式扬声器的结构示意图。
图8是本发明第六实施例的局部放大示意图。
图9是本发明第七实施例提供的锥盆式扬声器的结构示意图。
图10是本发明第八实施例提供的锥盆式扬声器的结构示意图。
图11是本发明第八实施例的局部放大示意图。
图12是本发明第九实施例提供的锥盆式扬声器的结构示意图。
图13是本发明第十实施例提供的锥盆式扬声器的结构示意图。
图14是本发明第十一实施例提供的锥盆式扬声器的结构示意图。
图15是本发明第十二实施例提供的锥盆式扬声器的结构示意图。
图16-17是锥盆式扬声器的频响曲线示意图。
具体实施方式
现在将参照附图来详细描述本发明的各种示例性实施例。应注意到：除非另外具体说明，否则在这些实施例中阐述的部件和步骤的相对布置、数字表达式和数值不限制本发明的范围。
以下对至少一个示例性实施例的描述实际上仅仅是说明性的，决不作为对本发明及其应用或使用的任何限制。
对于相关领域普通技术人员已知的技术、方法和设备可能不作详细讨论，但在适当情况下，所述技术、方法和设备应当被视为说明书的一部分。
在这里示出和讨论的所有例子中，任何具体值应被解释为仅仅是示例性的，而不是作为限制。因此，示例性实施例的其它例子可以具有不同的值。
应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步讨论。
参见图2-图15说明本发明第一至第十二实施例提供的锥盆式的扬声器膜片和扬声器，这些实施例的振动系统和磁路系统的相对位置关系与图1类似，类似的部分参见对图1的描述，这里不再进行重复说明，重点介绍其与现有技术的区别。
<第一实施例>
图2是本发明第一实施例提供的锥盆式的扬声器膜片和扬声器的结构示意图。锥盆式的扬声器膜片包括锥盆1和折环2，锥盆1的中间设置有开口，折环2为环形。折环2从内向外依次包括连接部21、折环主体22、以及折环外边缘23。折环2的连接部21包括位于外侧的环形结构211和位于内侧的两个附加结构212。折环2的连接部21可以通过粘接等方式固定连接于锥盆1的外边缘的上表面。折环2的折环外边缘23与盆架连接。
<第二实施例>
图3是本发明第二实施例提供的锥盆式的扬声器膜片和扬声器的结构示意图。锥盆式的扬声器膜片包括锥盆1和折环2，锥盆1的中间设置有开口，折环2为环形。折环2从内向外依次包括连接部21、折环主体22、以及折环外边缘23。折环2的连接部21包括位于外侧的环形结构211和 位于内侧的三个附加结构212。折环2的连接部21可以通过粘接等方式固定连接于锥盆1的外边缘的上表面。折环2的折环外边缘23与盆架连接。
<第三实施例>
图4是本发明第三实施例提供的锥盆式的扬声器膜片和扬声器的结构示意图。锥盆式的扬声器膜片包括锥盆1和折环2，锥盆1的中间设置有开口，折环2为环形。折环2从内向外依次包括连接部21、折环主体22、以及折环外边缘23。折环2的连接部21包括位于外侧的环形结构211和位于内侧的四个附加结构212。折环2的连接部21可以通过粘接等方式固定连接于锥盆1的外边缘的上表面。折环2的折环外边缘23与盆架连接。
第一至第三实施例在折环2的连接部21的多个位置设置附加结构212，附加结构212增加了锥盆1的外边缘在该位置的结构强度，锥盆1的外边缘在附加结构212处的振动位移明显与锥盆1的外边缘的其他位置不同，改变了锥盆1的外边缘处在特定频率下的共振状态，参见图16所示，由于破坏了锥盆1的外边缘处的环形共振，使扬声器的高频谐振峰相较常规设计得到抑制(频响曲线图b)，甚至降低(频响曲线图c)。
<第四实施例>
图5是本发明第四实施例提供的锥盆式的扬声器膜片和扬声器的结构示意图。第四实施例和第一实施例的结构有些类似，主要区别在于，在第四实施例中，其中一个附加结构212距离锥盆1的中心相对比较近，另一个附加结构212距离锥盆1的中心相对比较远。
音圈的引线连接至音圈引线引出装置800，参见图5所示，附加结构212结合音圈引线来进行设计，令距离锥盆中心比较近的附加结构212的质量大于距离锥盆中心比较远的附加结构212的质量，所述距离锥盆中心比较近且质量比较大的附加结构212位于与音圈的引线相对的一侧，所述距离锥盆中心比较远并且质量比较小的附加结构212位于音圈的引线一侧，用以改善由于音圈的引线及焊锡、胶水等引起的扬声器振动系统的不平衡，从而改善扬声器振动系统的非线性，降低扬声器的失真。
在另一个实施例中，所述连接部包括位于外侧的环形结构211和位于内侧的至少两个附加结构212，其中至少一个附加结构212与其它附加结 构212中的至少一个距离锥盆中心的距离不同。在另一个实施例中，附加结构212可以为三个，其中至少一个附加结构212与其它附加结构212中的至少一个距离锥盆中心的距离不同，其中两个附加结构212位于与音圈的引线相对的一侧，另外一个附加结构212位于音圈引线一侧。
<第五实施例>
图6是本发明第五实施例提供的锥盆式的扬声器膜片和扬声器的结构示意图。第五实施例和第一实施例的结构有些类似，主要区别在于，在第五实施例中，折环2的连接部21包括位于外侧的环形结构211和位于内侧的一个附加结构212。
第五实施例在折环2的连接部21的一个位置设置附加结构212，附加结构212增加了锥盆1的外边缘在该位置的结构强度，锥盆1的外边缘在附加结构212处的振动位移明显与锥盆1的外边缘的其他位置不同，改变了锥盆1的外边缘处在特定频率下的共振状态，参见图17所示，由于破坏了锥盆1的外边缘处的环形共振，使扬声器的高频谐振峰相较常规设计得到一定程度的抑制(频响曲线图d)。
参见图6所示。附加结构212可以结合音圈的引线来进行设计，音圈100的引线101连接至音圈引线引出装置800，附加结构212位于与音圈100的引线101相对的一侧，用以改善由于音圈的引线及焊锡、胶水等引起的扬声器振动系统的不平衡，从而改善扬声器振动系统的非线性，降低扬声器的失真。
<第六实施例>
图7是本发明第六实施例提供的锥盆式的扬声器膜片和扬声器的结构示意图，图8是图7的局部放大示意图。第六实施例和第五实施例的结构类似，区别在于，在第六实施例中，盆架300的特定位置处设有一个突出结构301，折环1的折环外边缘23在特定位置处设有与突出结构301配合的凹陷结构231，通过这两者之间的配合，来实现膜片在盆架上的定位，从而解决现有扬声器结构中膜片在盆架上可以以任何的角度转动的问题。
在另一个实施例中，也可以是盆架300的特定位置处设有一个凹陷结构，折环1的折环外边缘23在特定位置处设有与凹陷结构配合的突出结构， 同样可以实现两者的配合，来达到膜片在盆架上的定位。
此外，由于在第六实施例中，需要让附加结构212位于与音圈的引线相对的一侧，因此在安装膜片时，需要对膜片进行定位使得附加结构212的位置对准与音圈的引线相对的一侧，因此上述凹陷/突出结构还方便了扬声器膜片的安装。
<第七实施例>
图9是本发明第七实施例提供的锥盆式的扬声器膜片和扬声器的结构示意图。第七实施例和第六实施例的结构类似，区别主要在于，在第六实施例中，凹陷/突出结构所处的位置位于音圈的引线的正对面，在第七实施例中，凹陷/突出结构可以位于其它位置。
<第八实施例>
图10是本发明第八实施例提供的扬声器的结构示意图.图11是图10的局部放大示意图。第八实施例和第五实施例的结构类似，区别主要在于，盆架300上设有定位柱302，折环外边缘23设有与定位柱302配合的定位孔232，定位柱302穿过定位孔232以对膜片进行定位。
在其它实施例中，膜片的外边缘固定在支撑系统上，膜片的外边缘设有凹陷结构，支撑系统设有与膜片的凹陷结构配合的突出结构，以对膜片进行定位；在一个实施例中，所述支撑系统包括盆架，所述膜片的外边缘固定于盆架的上表面，所述盆架设有所述与膜片的凹陷结构配合的突出结构；在一个实施例中，所述膜片的凹陷结构的凹陷方向朝向膜片的中心。
在其它实施例中，膜片的外边缘固定在支撑系统上，膜片的外边缘设有突出结构，支撑系统设有与膜片的突出结构配合的凹陷结构，以对膜片进行定位；在一个实施例中，所述支撑系统包括盆架，所述膜片的外边缘固定于盆架的上表面，所述盆架设有所述与膜片的突出结构配合的凹陷结构；在一个实施例中，所述膜片的突出结构的突出方向背离膜片的中心。
在其它实施例中，膜片的外边缘固定在支撑系统上，膜片的外边缘设有定位柱，支撑系统设有与定位柱配合的定位孔或定位槽，定位柱穿过定位孔或穿入定位槽，以对所述膜片进行定位；在一个实施例中，所述支撑系统包括盆架，所述膜片的外边缘固定于盆架的上表面，所述盆架设有所 述与定位柱配合的定位孔或定位槽。
第一至第八实施例中的折环2可以为一体成型结构。环形结构211和附加结构212的厚度可以相同，连接部21可以具有均匀的厚度。附加结构212可以为弧形，附加结构212的外弧和环形结构211的内弧连接。
第一至第八实施例的主要区别在于附加结构212的分布及数量。附加结构212的数量可以是一个，也可以多个。附加结构212的分布可以是对称式分布，也可以是非对称式分布。附加结构212也可以为均匀分布。附加结构212的大小、质量、面积、形状分别可以相同也可以不同。附加结构212到锥盆中心处的距离可以相同也可以不同。附加结构212可以进一步结合音圈引线来进行设计，尽量满足扬声器振动的平衡。
<第九实施例>
图12是本发明第九实施例提供的锥盆式的扬声器膜片和扬声器的结构示意图。锥盆式的扬声器膜片包括锥盆1和折环2。锥盆1的中间设置有开口，折环2为环形。折环2从内向外依次包括连接部21、折环主体22、以及折环外边缘23。锥盆1包括锥盆主体11和两个附加结构12。折环2的连接部21固定连接于锥盆主体11的外边缘的上表面。锥盆1的附加结构12为片状，附加结构12的上表面与锥盆主体11的外边缘的下表面贴合。折环2的折环外边缘23与盆架连接。
<第十实施例>
图13是本发明第十实施例提供的锥盆式的扬声器膜片和扬声器的结构示意图。锥盆式的扬声器膜片包括锥盆1和折环2。锥盆1的中间设置有开口，折环2为环形。折环2从内向外依次包括连接部21、折环主体22、以及折环外边缘23。锥盆1包括锥盆主体11和三个附加结构12。折环2的连接部21固定连接于锥盆主体11的外边缘的上表面。锥盆1的附加结构12为片状，附加结构12的上表面与锥盆主体11的外边缘的下表面贴合。折环2的折环外边缘23与盆架连接。
<第十一实施例>
图14是本发明第十一实施例提供的锥盆式的扬声器膜片和扬声器的结构示意图。锥盆式的扬声器膜片包括锥盆1和折环2。锥盆1的中间设 置有开口，折环2为环形。折环2从内向外依次包括连接部21、折环主体22、以及折环外边缘23。锥盆1包括锥盆主体11和四个附加结构12。折环2的连接部21固定连接于锥盆主体11的外边缘的上表面。锥盆1的附加结构12为片状，附加结构12的上表面与锥盆主体11的外边缘的下表面贴合。折环2的折环外边缘23与盆架连接。
第九至第十一实施例在锥盆1的外边缘的多个位置设置附加结构12，附加结构12增加了锥盆1的外边缘在该位置的厚度，增强了锥盆1的外边缘在该位置的结构强度，锥盆1的外边缘在附加结构12处的振动位移明显与锥盆1的外边缘的其他位置不同，改变了锥盆1的外边缘处在特定频率下的共振状态，参见图16所示，由于破坏了锥盆1的外边缘处的环形共振，使扬声器的高频谐振峰相较常规设计得到抑制(频响曲线图b)，甚至降低(频响曲线图c)。
<第十二实施例>
图15是本发明第十二实施例提供的锥盆式的扬声器膜片和扬声器的结构示意图。第十二实施例和第九实施例的结构有些类似，主要区别在于，在第十二实施例中，锥盆1包括锥盆主体11和一个附加结构12。
第十二实施例在锥盆1的外边缘的一个位置设置附加结构12，附加结构12增加了锥盆1的外边缘在该位置的厚度，增强了锥盆1的外边缘在该位置的结构强度，锥盆1的外边缘在附加结构12处的振动位移明显与锥盆1的外边缘的其他位置不同，改变了锥盆1的外边缘处在特定频率下的共振状态，参见图17所示，由于破坏了锥盆1的外边缘处的环形共振，使扬声器的高频谐振峰相较常规设计得到一定程度的抑制(频响曲线图d)。
参见图15所示。附加结构12可以结合音圈的引线来进行设计，音圈100的引线101连接至音圈引线引出装置800，附加结构12位于与音圈100的引线101相对的一侧，用以改善由于音圈的引线及焊锡、胶水等引起的扬声器振动系统的不平衡，从而改善扬声器振动系统的非线性，降低扬声器的失真。
参见图15所示。盆架300的特定位置处设有一个突出结构301，折环1的折环外边缘23在特定位置处设有与突出结构301配合的凹陷结构231， 通过这两者之间的配合，来实现膜片在盆架上的定位，从而解决现有扬声器结构中膜片在盆架上可以以任何的角度转动的问题。在另一个实施例中，也可以是盆架300的特定位置处设有一个凹陷结构，折环1的折环外边缘23在特定位置处设有与凹陷结构配合的突出结构，同样可以实现两者的配合，来达到膜片在盆架上的定位。
此外，由于在第十二实施例中，需要让附加结构12位于与音圈的引线相对的一侧，因此在安装膜片时，需要对膜片进行定位使得附加结构12的位置对准与音圈的引线相对的一侧，因此上述凹陷/突出结构还方便了扬声器膜片的安装。
第九至第十二实施例中的锥盆1可以为一体成型结构。锥盆1的附加结构12可以为弧形。在一个实施例中，附加结构12的外弧和锥盆主体11的外边缘的弧度一致。
第九至第十二实施例的主要区别在于附加结构12的分布及数量。附加结构12的数量可以是一个，也可以是多个。附加结构12的分布可以是对称式分布，也可以是非对称式分布。附加结构12也可以为均匀分布。附加结构12的大小、质量、面积、形状分别可以相同也可以不同。附加结构12到锥盆中心处的距离可以相同也可以不同。附加结构12可以进一步结合音圈引线来进行设计，尽量满足扬声器振动的平衡。
在另一个实施例中，锥盆1包括锥盆主体11和至少两个附加结构12，其中至少一个附加结构12与其它附加结构12中的至少一个距离锥盆中心的距离不同。在另一个实施例中，附加结构12可以为三个，其中至少一个附加结构12与其它附加结构12中的至少一个距离锥盆中心的距离不同，其中两个附加结构12位于与音圈的引线相对的一侧，另外一个附加结构12位于音圈引线一侧。
在其它的实施例中，锥盆1包括锥盆主体11和两个附加结构12，其中一个附加结构12距离锥盆1的中心相对比较近，另一个附加结构12距离锥盆1的中心相对比较远；附加结构12可以进一步结合音圈引线来进行设计，令距离锥盆中心比较近的附加结构12的质量大于距离锥盆中心比较远的附加结构12的质量，所述距离锥盆中心比较近且质量比较大的附加结 构12位于与音圈的引线相对的一侧，所述距离锥盆中心比较远并且质量比较小的附加结构12位于音圈的引线一侧，用以改善由于音圈的引线及焊锡、胶水等引起的扬声器振动系统的不平衡，从而改善扬声器振动系统的非线性，降低扬声器的失真。
虽然已经通过例子对本发明的一些特定实施例进行了详细说明，但是本领域的技术人员应该理解，以上例子仅是为了进行说明，而不是为了限制本发明的范围。本领域的技术人员应该理解，可在不脱离本发明的范围的情况下，对以上实施例进行修改。本发明的范围由所附权利要求来限定。

Claims (12)

  1. 一种锥盆式的扬声器膜片，其特征在于，包括锥盆和折环，所述折环为环形；所述折环从内向外依次包括：连接部、折环主体、以及折环外边缘；所述连接部包括位于外侧的环形结构和位于内侧的至少两个附加结构，其中至少一个附加结构与其它附加结构中的至少一个距离锥盆中心的距离不同；所述折环的连接部固定连接于所述锥盆的外边缘的上表面。
  2. 根据权利要求1所述的膜片，其特征在于，所述折环为一体成型结构。
  3. 根据权利要求1或2所述的膜片，其特征在于，所述环形结构和所述附加结构的厚度相同。
  4. 根据权利要求1-3任一项所述的膜片，其特征在于，所述附加结构为弧形，所述附加结构的外弧和所述环形结构的内弧连接。
  5. 一种锥盆式的扬声器膜片，其特征在于，包括锥盆和折环，所述折环为环形；所述折环从内向外依次包括：连接部、折环主体、以及折环外边缘；所述锥盆包括锥盆主体和至少两个附加在所述锥盆主体的下表面的附加结构，其中至少一个附加结构与其它附加结构中的至少一个距离锥盆中心的距离不同；所述折环的连接部固定连接于所述锥盆主体的外边缘的上表面。
  6. 根据权利要求5所述的膜片，其特征在于，所述附加结构为片状，其上表面与所述锥盆主体的外边缘的下表面贴合。
  7. 根据权利要求5或6所述的膜片，其特征在于，所述附加结构为弧形，所述附加结构的外弧和所述锥盆主体的外边缘的弧度一致。
  8. 根据权利要求5-7任一项所述的膜片，其特征在于，所述锥盆为一体成型结构。
  9. 一种扬声器，其特征在于，具有根据权利要求1-8任一项所述的锥盆式的扬声器膜片。
  10. 根据权利要求9所述的扬声器，其特征在于，距离锥盆中心比较近的附加结构的质量大于距离锥盆中心比较远的附加结构的质量。
  11. 根据权利要求10所述的扬声器，其特征在于，所述附加结构为两个，所述距离锥盆中心的比较近的附加结构位于与音圈的引线相对的一侧，所述距离锥盆中心比较远的附加结构位于音圈的引线一侧。
  12. 根据权利要求9所述的扬声器，其特征在于，所述附加结构为三个，其中两个附加结构位于与音圈的引线相对的一侧，另外一个附加结构位于音圈引线一侧。
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