WO2019041507A1 - 用于扬声器的振膜以及扬声器单体 - Google Patents

用于扬声器的振膜以及扬声器单体 Download PDF

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Publication number
WO2019041507A1
WO2019041507A1 PCT/CN2017/108381 CN2017108381W WO2019041507A1 WO 2019041507 A1 WO2019041507 A1 WO 2019041507A1 CN 2017108381 W CN2017108381 W CN 2017108381W WO 2019041507 A1 WO2019041507 A1 WO 2019041507A1
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WIPO (PCT)
Prior art keywords
diaphragm
reverse
folded
segment
straight
Prior art date
Application number
PCT/CN2017/108381
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English (en)
French (fr)
Inventor
王建建
李栋
李军
Original Assignee
歌尔股份有限公司
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Publication date
Priority claimed from CN201721112041.5U external-priority patent/CN207200976U/zh
Application filed by 歌尔股份有限公司 filed Critical 歌尔股份有限公司
Publication of WO2019041507A1 publication Critical patent/WO2019041507A1/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

Definitions

  • the present application relates to the field of electroacoustic conversion technology, and more particularly, to a diaphragm for a speaker and a speaker unit.
  • the diaphragm of the speaker usually includes a central portion, a loop portion and a connecting portion, and the loop portion is disposed around the loop portion, and the connecting portion is disposed around the loop portion.
  • the folding part is especially important for the sound quality of the speaker unit.
  • the folded portion of the existing diaphragm is composed of one or more arcs.
  • Some diaphragms add a reverse folding ring that is tangent to the folding ring portion and faces in opposite directions, which reduces the asymmetry of the folding ring portion in the vibration direction to some extent.
  • the loop portion is narrowed at the corners.
  • the provision of stiffeners at the corners plays a major role in the acoustic performance of the loudspeaker unit.
  • the narrowing of the corners makes the performance of the diaphragm more difficult to debug.
  • a diaphragm for a speaker includes a central portion, a folded ring portion disposed around the central portion, and a connecting portion disposed around the folded portion, the folded ring portion including a straight line segment and a bent portion at the center portion and the a reverse arc face is disposed between the straight segments of the loop portion, and/or a reverse arc face is disposed between the connecting portion and the straight segment of the loop portion; the reverse arc face and the The protruding direction of the folded portion is opposite, and the width of the reverse curved portion is smaller than the width of the folded portion.
  • the width of the bending section of the folding ring portion is greater than or equal to a reverse arc surface The sum of the straight line segment of the loop portion at the position and the width of the reverse arc portion.
  • the sum of the straight line segment of the folded loop portion at the position of the reverse arcuate portion and the width of the reverse curved portion is equal to the width of the straight line segment where the reverse arcuate position is not set.
  • the diaphragm is rectangular, a straight side of the folded portion is the straight line segment, and four corners of the folded portion are the bent portion, and the four straight sides are
  • the reverse arc surface portion is disposed between at least one of the center portion and/or the connecting portion.
  • the straight side of the folding ring portion includes two long sides and two short sides, and the reverse arc surface is disposed between the two long sides and the center portion or the connecting portion ;or it could be
  • the reverse arc surface portion is provided between the two short sides and the center portion or the connecting portion.
  • the diaphragm is in the shape of a racetrack
  • the straight side of the folding ring portion is the straight line segment
  • the curved side of the folding ring portion is the bending segment
  • the two straight sides are
  • the reverse arc surface portion is disposed between at least one of the center portion and/or the connecting portion.
  • the reverse arc surface is provided with two, respectively disposed on a side of the diaphragm with a large amplitude and a side of the diaphragm having a small amplitude.
  • the reverse arc surface portion is provided with two disposed between the opposite straight line segments and the central portion and/or the connecting portion, and the two reverse arc portions are respectively adjacent to the voice coil lead
  • the side of the lead end is located on the side where the solder end is located.
  • the diaphragm is rectangular
  • the folding ring portion is a rectangular ring shape
  • a pattern is arranged at four corners of the folding ring portion, and a protruding direction of the pattern and the folding ring portion are The bulging directions are the same or opposite.
  • a speaker unit includes a vibrating assembly and a magnetic circuit assembly, the vibrating assembly including the diaphragm provided herein.
  • a reverse arc surface portion is provided between a central portion of the diaphragm and a straight line portion of the folding ring portion, and/or a reverse arc is provided between the connecting portion and the straight line portion of the folding ring portion. Face.
  • the reverse arc surface can reduce the split vibration of the entire folded ring portion when the diaphragm vibrates, reducing the polarization.
  • the reverse arc face 14 can reduce harmonic distortion (THD) of the speaker at large voltages.
  • TDD harmonic distortion
  • FIG. 1 is a front view of a diaphragm according to an embodiment of the first aspect of the present application.
  • FIG. 2 is a cross-sectional view of a diaphragm in accordance with an embodiment of the first aspect of the present application.
  • FIG 3 is a cross-sectional view of a diaphragm in accordance with another embodiment of the first aspect of the present application.
  • FIG. 4 is a front elevational view of a diaphragm in accordance with yet another embodiment of the first aspect of the present application.
  • Figure 5 is a top plan view of a vibrating assembly in accordance with one embodiment of the second aspect of the present application.
  • Figure 6 is a side cross-sectional view of a vibrating assembly in accordance with an embodiment of the second aspect of the present application.
  • Figure 7 is a side cross-sectional view of a vibrating assembly in accordance with an embodiment of the second aspect of the present application.
  • Figure 8 is a top plan view of a vibrating assembly in accordance with another embodiment of the second aspect of the present application.
  • Figure 9 is a side cross-sectional view of a vibrating assembly in accordance with another embodiment of the second aspect of the present application.
  • Figure 10 is a side cross-sectional view of a vibrating assembly in accordance with another embodiment of the second aspect of the present application.
  • 1 is a front elevational view of a diaphragm of an embodiment provided in accordance with a first aspect of the present application.
  • 2 is a cross-sectional view of a diaphragm in accordance with an embodiment of the present application.
  • 3 is a cross-sectional view of a diaphragm in accordance with another embodiment of the present application.
  • the diaphragm for the speaker includes a center portion 11, a folded ring portion 12 provided around the center portion 11, and a connecting portion 13 provided around the folded ring portion 12.
  • the loop portion 12 includes a straight section 15 and a bent section 16.
  • the straight line segment 15 is a portion of the folded ring portion 12 that extends in a straight line.
  • the bent portion 16 is a portion of the folded portion 12 that extends along an arc or a broken line.
  • the loop portion 12 includes a plurality of straight segments 15 and bend segments 16, and the straight segments 15 and the bend segments 16 are spaced apart.
  • a reverse arc surface portion 14 is disposed between the central portion 11 and the straight line segment 15 of the folded ring portion 12, and/or
  • a reverse arc surface portion 14 is provided between the connecting portion 13 and the straight line portion 15 of the folded ring portion 12.
  • the reverse arc surface portion 14 is a curved surface opposite to the convex direction of the folded ring portion 12.
  • the reverse arc surface portion 14 extends in the extending direction of the folded ring portion 12.
  • the reverse arcuate portion 14 is not provided between the bent portion 16 and the connecting portion 13 and between the bent portion 16 and the central portion 11, so that the width of the bent portion 16 is not affected.
  • the reverse arc surface portion 14 is opposite to the convex direction of the folded ring portion 12. Reverse arc face 14 width It is smaller than the width of the loop portion 12.
  • a reverse arc surface portion 14 is provided between the central portion 11 of the diaphragm and the straight line portion 15 of the folded ring portion 12, and/or a straight line portion 15 between the connecting portion 13 and the folded ring portion 12 A reverse arc portion 14 is provided therebetween.
  • the reverse arc portion 14 can reduce the division vibration of the entire folded portion when the diaphragm vibrates, reducing the polarization.
  • the width of the reverse arc face is smaller than the width of the loop portion, which makes the performance of the diaphragm easier to debug.
  • the reverse arc portion 14 is provided only in the straight line segment 15, and does not affect the width of the bent portion 16. Since the width of the bent portion 16 of the folded portion is greater than or equal to the sum of the widths of the straight line portion 15 of the folded portion and the reverse curved surface portion 14, the diaphragm has a larger area at the bent portion 16. This makes it easy to provide the reinforcing ribs in the bent section 16, thereby facilitating the performance of the diaphragm. In addition, the reverse arc face 14 can reduce harmonic distortion (THD) of the speaker at large voltages.
  • TDD harmonic distortion
  • the diaphragm is rectangular.
  • the straight side of the loop portion 12 is a straight line segment 15.
  • the four corners of the loop portion 12 are bent portions 16.
  • a reverse arc portion 14 is provided on at least one of the four straight sides. The reverse arc portion 14 can reduce the polarization of the rectangular diaphragm.
  • a reverse arcuate portion 14 is disposed between the four straight sides of the loop portion 12 and the central portion and/or the connecting portion.
  • the reverse arc portion 14 may be disposed on one side or both sides of the straight side. This arrangement makes the reverse amplitude of the straight sides of the diaphragm evenly increase, and the vibration effects of the four straight sides are uniform.
  • the reverse arc portion 14 changes the structure of the diaphragm. While increasing the reverse amplitude of the diaphragm, the forward vibration of the diaphragm becomes difficult, and the F o (lowest vibration frequency) of the speaker unit is increased. The more the reverse arc face 14, the higher the F o of the speaker unit.
  • the forward direction refers to the convex direction of the folded ring portion 12; the reverse direction refers to the direction opposite to the convex direction of the folded ring portion 12.
  • the width of the bent portion 16 of the folded portion 12 is greater than or equal to the sum of the widths of the straight line portion 15 and the reverse curved surface portion 14 where the folded loop portion 12 is disposed at the position of the reverse curved portion.
  • the diaphragm has a larger area in the bent section 16. This makes it easy to provide the reinforcing ribs in the bent section 16, thereby facilitating the performance of the diaphragm.
  • the sum of the widths of the straight segments and the reverse arc faces provided with the loop portions at the reverse arcuate position is equal to the width of the straight segments where the reverse arc face positions are not provided. This can have Effectively reduce the polarization of the diaphragm.
  • the straight side of the diaphragm includes two long sides and two short sides.
  • a reverse arc surface portion 14 is disposed between the two long sides and the central portion 11 or the connecting portion 13; or
  • a reverse arc surface portion 14 is provided between the two short sides and the center portion 11 or the connecting portion 13.
  • a smaller number of reverse arc faces 14 are provided than if the reverse arc faces 14 are provided at positions corresponding to the four straight sides, so that the polarization of the diaphragm can be improved and the increase in F o can be avoided.
  • the two reverse arc faces 14 are symmetrically arranged with respect to the central portion 11. This makes the effects of vibration on both sides of the diaphragm uniform.
  • the diaphragm is racetrack shaped.
  • the straight side of the loop portion 12 is a straight line segment 15.
  • the curved side of the loop portion 12 is a bent portion 16.
  • a reverse arcuate portion 14 is disposed between at least one of the two straight sides and the central portion and/or the connecting portion.
  • the reverse arc face 14 can also reduce the polarization of the racetrack shaped diaphragm. The user can set the ribs on the curved sides to debug the performance of the diaphragm.
  • the reverse arc surface portion 14 is provided with two, which are respectively disposed on the side where the amplitude of the diaphragm is large and the side of the diaphragm having a small amplitude. Under normal circumstances, the amplitude of the diaphragm is inconsistent due to the one-side pulling of the voice coil lead, the asymmetric distribution of the leakage hole, the asymmetric design of the magnetic circuit, or the one-side design of the sound outlet of the module.
  • the reverse arc surface portion 14 By providing the reverse arc surface portion 14 on the side where the diaphragm amplitude is excessively large and the diaphragm amplitude is small, the polarization of the diaphragm can be effectively reduced.
  • the reverse arcuate face portion 14 is provided with two, disposed between the opposing two straight segments and the central portion and/or the connecting portion.
  • the two reverse arc faces 14 are respectively adjacent to the side where the leading end of the voice coil lead is located and the side where the soldering end is located.
  • the vibration system of the speaker unit includes a voice coil and a diaphragm.
  • the voice coil is fixedly connected to the central portion 11 of the diaphragm.
  • the voice coil leads are led out of the diaphragm away from the pad side, then fixed to the washer or housing, and finally connected to the pads provided on the housing.
  • the ends of the voice coil leads are spot welded to the pads to form a soldered end.
  • a partial dangling of the voice coil leads to provide freedom of vibration for the diaphragm.
  • a reverse arcuate portion 14 is provided between the opposing two straight segments and the central portion and/or the connecting portion. Two The reverse arc faces 14 are respectively adjacent to the side where the leading end of the voice coil lead is located and the side where the soldering end is located. The reverse arc portion 14 can reduce the strain of the diaphragm on the side, thereby effectively reducing the polarization of the diaphragm due to the pulling of the lead.
  • the diaphragm is integrally injection molded.
  • the diaphragm is integrally molded with a polymer material to form the folded ring portion 12 and the reverse arc portion 14.
  • the portion where the folded loop portion 12 and the reverse curved surface portion 14 are formed by integral injection molding can be made smoother. For example, this manner allows the loop portion 12 to be tangent to the reverse arc portion 14. This makes the structural strength of the diaphragm higher, improves the smoothness of the diaphragm, and reduces the distortion of the diaphragm during vibration.
  • the inner diameter of the reverse arc portion 14 is smaller than the inner diameter of the folded portion 12.
  • the reverse arc surface portion 14 has a small influence on the overall structure of the diaphragm, and while improving the polarization of the diaphragm, it does not adversely affect other properties of the diaphragm, such as structural strength, compliantness, and the like.
  • the reverse arc surface portion 14 and the folding ring portion 12 may be semicircular, circular arc or elliptical.
  • the inner diameter refers to the inner diameter of a circular arc or an elliptical arc.
  • the inner diameters of the plurality of reverse arcuate portions 14 of the same diaphragm are the same. In this way, the symmetry of the diaphragm is improved, and the polarization of the diaphragm is further reduced.
  • a person skilled in the art can set the inner diameter of the folding ring portion 12 and the reverse arc surface portion 14 according to actual needs.
  • the diaphragm is rectangular.
  • the loop portion 12 has a rectangular ring shape.
  • a pattern 18 is provided at the four corners of the loop portion 12.
  • the pattern 18 is a protrusion or groove provided on the diaphragm.
  • the pattern 18 is linear or curved. As shown in FIG. 4, a plurality of radial patterns 18 are provided at each of the four corners of the loop portion 12. The pattern 18 can cancel the stress generated when the diaphragm vibrates, and further prevent the diaphragm from being polarized.
  • the pattern 18 extends the life of the diaphragm.
  • the pattern 18 further improves the smoothness of the diaphragm, and the vibration effect of the diaphragm is better.
  • a speaker unit includes a vibration assembly and a magnetic circuit assembly.
  • the vibrating assembly includes a voice coil and a diaphragm provided herein.
  • the diaphragm is a folded ring diaphragm.
  • the voice coil is connected to the center portion 11 of the diaphragm.
  • Magnetic circuit assembly forms a magnetic room Gap. A magnetic field is formed within the magnetic gap. The free end of the voice coil is inserted into the magnetic gap.
  • the voice coil responds to the electrical signal of the external circuit and is subjected to the ampere force in the magnetic gap to generate vibration.
  • the voice coil drives the diaphragm to vibrate to make a sound.
  • the speaker unit has the characteristics of small distortion, good sound effect and good reliability.
  • a vibration assembly for a sounding device which can improve the polarization phenomenon of the sounding device.
  • the lead wire is usually taken out from one side of the voice coil, which causes the overall structure of the voice coil and the lead wire to be asymmetrical.
  • the lead is usually glued, and the rubberizing treatment further suppresses the vibration of the side where the voice coil leads the lead.
  • the existing sounding device is liable to cause polarization of the voice coil, and the acoustic performance margin of the sounding device is reduced.
  • the vibrating assembly of the sounding device comprises a diaphragm 2 and a voice coil 3, said voice coil 3 being connected to one side of said diaphragm 2.
  • the voice coil 3 has a lead segment 31, a non-lead segment 32 and a connecting segment 33.
  • the lead segment 31 is a segment of the voice coil on which the lead 34 is drawn, and the position and position of the non-lead segment 32 in the entire voice coil 3
  • the lead segments 31 are disposed opposite each other in the voice coil 3, and the connecting segments 33 connect the lead segments 31 to the non-lead segments 32 to form a closed voice coil 3.
  • the diaphragm 2 has a main folding ring portion 21 and a sub-bending portion 22, the main folding ring portion 1 forms a closed ring shape, and the sub-bending portion 22 is disposed on the diaphragm 2 and the sound.
  • the position of the non-lead segment 32 of the ring 3 is adjacent to the main folded ring portion 21.
  • the main folding ring portion 21 is bent toward one side of the diaphragm, and the sub-bending portion 22 is bent toward the other side of the diaphragm.
  • the bending direction of the auxiliary bending portion and the main folding ring portion is different, and when the voice coil drives the vibration film to vibrate, deformation occurs in the auxiliary bending portion, thereby suppressing deformation of the main folding ring portion and suppressing the non-lead portion
  • the amplitude of the corresponding diaphragm improves the polarization phenomenon of the sounding device.
  • the setting of the secondary folding ring segment also occupies a certain width of the main folding ring portion, so that the width of the main folding ring portion of the diaphragm corresponding to the non-lead segment is reduced, and the amplitude of the non-lead segment of the voice coil is further suppressed, and the sounding device is further suppressed.
  • the polarization phenomenon has been further improved.
  • the diaphragm 2 further has a central portion and an edge portion, and the main folding ring portion 21 surrounds Around the center portion, the edge portion is located at a periphery of the main folding ring portion 21, and the sub-bending portion 22 is disposed between the main folding ring portion 21 and the center portion.
  • the voice coil 3 is connected to the same side of the diaphragm 2 as the bending direction of the sub-bend section 22.
  • the voice coil 3 may be connected to the same side of the diaphragm 2 as the bending direction of the main folding ring portion 21.
  • the present application does not limit this.
  • the voice coil is connected to the same or opposite side of the bending direction of the main folding ring portion, and the technician can set according to the specific structure of the sounding device.
  • the diaphragm may have a rectangular structure as a whole, and correspondingly, the main folding ring portion also has an approximately rectangular annular structure.
  • the main folding ring portion has a straight line segment and a corner segment at both ends of the straight line segment, and the corner segment connects the straight line segments to each other end to end.
  • the positions of the non-lead segments and the lead segments respectively correspond to two symmetrically distributed straight segments.
  • the sub-bend segment corresponds to the position of the straight segment and extends only along the straight segment.
  • the secondary bend segments do not affect the structure of the corner segments. Structures such as patterns can be placed on the corner segments to improve the acoustic performance of the diaphragm.
  • the application does not limit that the secondary bending section cannot extend to the corner section.
  • the secondary bending section may also extend from a straight line segment corresponding to the non-lead segment to both ends of the straight line segment. It then extends to the position corresponding to the corner segment.
  • the width of the main loop portion corresponding to the non-lead segment is preferably smaller than the width of the main loop portion corresponding to the lead segment.
  • the reduced width is occupied by the secondary bending section.
  • the sum of the widths of the main folded portion and the auxiliary bent portion corresponding to the non-lead segments is preferably equal to the width of the main folded ring portion corresponding to the lead segments. This ensures the structural symmetry of the diaphragm as a whole.
  • the width ratio of the secondary bending section 22 to the main folding ring portion 21 is less than 1:3.
  • the sub-bend section 22 can appropriately suppress the deformation of the main loop portion 21 and function to improve the polarization phenomenon. If the width of the secondary bending section 22 and the main folding ring portion 21 is relatively large, the secondary bending section 22 suppresses The effect of the amplitude is too strong, and it is possible that the amplitude of the main folded portion 21 is lower than the normal amplitude requirement.
  • the height ratio of the secondary bending section 22 to the main folding ring portion 21 is less than 1:3.
  • the sub-bend section 22 can effectively suppress the deformation of the main loop portion 21 and function to improve the polarization phenomenon. If the height of the secondary bending section 22 and the main folding ring portion 21 is relatively large, the secondary bending section 22 itself can also be deformed with a large amplitude. Accordingly, the suppression of the amplitude of the main folding ring portion 21 is lowered.
  • a damping agent is applied in the auxiliary bending section 22, and the damping agent can reduce the deformation capability of the auxiliary bending section, thereby suppressing the free vibration of the corresponding diaphragm at the non-lead section, thereby improving the polarization phenomenon of the speaker.
  • the damping agent can reduce the deformation capability of the auxiliary bending section, thereby suppressing the free vibration of the corresponding diaphragm at the non-lead section, thereby improving the polarization phenomenon of the speaker.
  • the above damper can also be replaced with other materials having damping properties, which is not limited in the present application. Any solution that can achieve the same technical effect belongs to the protection scope of the present application.
  • the secondary bending section 22 is in the shape of a groove.
  • the groove-like structure can be used to carry a damper, and the damper is disposed in the groove-shaped sub-bending section.
  • the groove can be guided to facilitate the coating operation of the automatic equipment and improve the production efficiency of the product.
  • the shape of the secondary bending section may be other shapes and structures, and any shape that can achieve the same technical effect belongs to the protection scope of the present application.
  • the vibrating assembly of the sounding device comprises a diaphragm 2 and a voice coil 3, the voice coil 3 being connected to one side of the diaphragm 2.
  • the voice coil 3 has a lead segment 31, a non-lead segment 32 and a connecting segment 33.
  • the lead segment 31 is a segment of the voice coil on which the lead 34 is drawn, and the position and position of the non-lead segment 32 in the entire voice coil 3
  • the lead segments 31 are disposed opposite each other in the voice coil 3, and the connecting segments 33 connect the lead segments 31 to the non-lead segments 32 to form a closed voice coil 3.
  • the diaphragm 2 has a main folding ring portion 21 and a secondary bending portion 22, and the main folding portion
  • the ring portion 1 is formed in a closed loop shape, and the sub-bend portion 22 is disposed at a position where the diaphragm 2 corresponds to the non-lead portion 32 of the voice coil 3, adjacent to the main loop portion 21.
  • the main folding ring portion 21 is bent toward one side of the diaphragm, and the sub-bending portion 22 is bent toward the other side of the diaphragm.
  • the diaphragm 2 further has a central portion and an edge portion, the main folding ring portion 21 is surrounded around the central portion, and the edge portion is located at a periphery of the main folding ring portion 21, the secondary bending portion A folded section 22 is provided between the main folded ring portion 21 and the edge portion.
  • the voice coil 3 is connected to the same side of the diaphragm 2 as the bending direction of the sub-bend section 22.
  • the voice coil 3 may be connected to the same side of the diaphragm 2 as the bending direction of the main folding ring portion 21.
  • the present application does not limit this.
  • the voice coil is connected to the same or opposite side of the bending direction of the main folding ring portion, and the technician can set according to the specific structure of the sounding device.
  • the width of the main loop portion corresponding to the non-lead segment is smaller than the width of the main loop portion corresponding to the lead segment. Further, the sum of the widths of the main folded portion and the auxiliary bent portion corresponding to the non-lead segments is equal to the width of the main folded portion corresponding to the lead segments.
  • the width ratio of the secondary bending section 22 to the main folding ring portion 21 is less than 1:3.
  • the height ratio of the secondary bending section 22 to the main folding ring portion 21 is less than 1:3.
  • a damping agent is applied to the secondary bending section 22.
  • the above damper can also be replaced with other materials having damping properties, which is not limited in the present application. Any solution that can achieve the same technical effect belongs to the protection scope of the present application.
  • the sub-bending section 22 is in the shape of a groove.
  • the shape of the secondary bending section may be other shapes and structures, and any shape that can achieve the same technical effect belongs to the protection scope of the present application.
  • the present application also provides a sounding device including a housing, a magnetic circuit system, and the vibration assembly provided in the first embodiment or the second embodiment, wherein the magnetic circuit system and the vibration assembly are disposed in the housing, the The road system drives the vibration assembly to vibrate.
  • the vibration assembly provided by the above two embodiments effectively improves the phenomenon of polarization.
  • the sounding device of the present application adopts such a vibration component, and the polarization phenomenon can be effectively improved, and the acoustic performance is improved.
  • a vibration assembly for a sounding device comprising a diaphragm and a voice coil
  • the voice coil has a lead segment, a non-lead segment and a connecting segment, the lead segment and the non-lead segment are distributed in a relative position of the voice coil, and the connecting segment leads the lead
  • the segment is connected to the non-lead segment, and the lead segment extends over the lead segment;
  • the diaphragm has a main folding ring portion and a secondary bending portion, the secondary bending portion is connected to the main folding ring portion, and the auxiliary bending portion is located at a position corresponding to the non-lead segment;
  • the main folding ring portion is bent toward one side of the diaphragm, and the auxiliary bending portion is bent toward the other side of the diaphragm.
  • the secondary bending section is disposed between the main folding ring portion and the center portion.
  • the main folding ring portion corresponding to the position of the non-lead segment comprises a straight segment and a corner segment at both ends of the straight segment, the secondary bending segment and the straight segment The position corresponds to and extends along the straight line segment.
  • a sounding device comprising a housing, a magnetic circuit system, and a vibration assembly according to any one of E1 to E9, wherein the magnetic circuit system and the vibration assembly are disposed in the housing, and an edge connection of the diaphragm On the housing, the voice coil is located in the magnetic circuit system, and the magnetic circuit system is configured to drive the vibration assembly to vibrate.

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

Abstract

本发明涉及用于扬声器的振膜以及扬声器单体。该振膜包括中心部、围绕中心部设置的折环部和围绕折环部设置的连接部，折环部包括直线段和弯折段，在中心部与折环部的直线段之间设置有反向弧面部，和/或在连接部与折环部的直线段之间设置有反向弧面部；反向弧面部与折环部的凸出方向相反，且所述反向弧面部的宽度小于所述折环部的宽度。本申请所要解决的一个技术问题是现有的振膜弯折段的宽度小，造成性能调试困难。

Description

用于扬声器的振膜以及扬声器单体 技术领域
本申请涉及电声转换技术领域，更具体地，本申请涉及一种用于扬声器的振膜以及扬声器单体。
背景技术
扬声器的振膜通常包括中心部、折环部和连接部，折环部围绕折环部设置，连接部围绕折环部设置。折环部对扬声器单体的音质的调试尤为重要。
现有振膜的折环部由一段或者多段弧构成。有的振膜会增加一个与折环部相切且朝向相反的反向折环，这在一定程度上消减了折环部在振动方向上的非对称性。
然而，增加反向折环的同时，造成了折环部在角部变窄。而在角部设置加强筋对扬声器单体的声学性能起主要作用。角部变窄，致使振膜的性能调试变得更加困难。
实用新型内容
本申请的一个目的是提供一种用于扬声器的振膜的新技术方案。
根据本申请的一个方面，提供一种用于扬声器的振膜。该振膜包括中心部、围绕所述中心部设置的折环部和围绕所述折环部设置的连接部，所述折环部包括直线段和弯折段，在所述中心部与所述折环部的直线段之间设置有反向弧面部，和/或在所述连接部与所述折环部的直线段之间设置有反向弧面部；所述反向弧面部与所述折环部的凸出方向相反,且所述反向弧面部的宽度小于所述折环部的宽度。
可选地，所述折环部的弯折段的宽度大于或等于设置有反向弧面部 位置处的所述折环部的直线段与所述反向弧面部的宽度之和。
可选地，设置有反向弧面部位置处的所述折环部的直线段与所述反向弧面部的宽度之和，等于没有设置反向弧面部位置的直线段的宽度。
可选地，所述振膜为矩形，所述折环部的直边为所述直线段，所述折环部的四个角部为所述弯折段，在四个所述直边的至少一个与所述中心部和/或所述连接部之间设置有所述反向弧面部。
可选地，所述折环部的直边包括两条长边和两条短边，在两条所述长边与所述中心部或所述连接部之间设置有所述反向弧面部；或者是
在两条所述短边与所述中心部或所述连接部之间设置有所述反向弧面部。
可选地，所述振膜为跑道形，所述折环部的直边为所述直线段，所述折环部的弧形边为所述弯折段，在两个所述直边的至少一个与所述中心部和/或所述连接部之间设置有所述反向弧面部。
可选地，所述反向弧面部设有两个，分别设于振膜振幅偏大一侧和振膜振幅偏小一侧。
可选地，所述反向弧面部设有两个，被设置在相对的来个直线段与所述中心部和/或所述连接部之间，两个反向弧面部分别靠近音圈引线的引出端所在一侧和焊接端所在一侧。
可选地，所述振膜为矩形，所述折环部为矩形环状，在所述折环部的四个角部设置有花纹，所述花纹的凸出方向与所述折环部的凸出方向相同或相反。
根据本申请的另一个方面，提供了一种扬声器单体。该扬声器单体包括振动组件和磁路组件，所述振动组件包括本申请提供的所述振膜。
本申请的一个技术效果在于，在振膜的中心部与折环部的直线段之间设置有反向弧面部，和/或在连接部与折环部的直线段之间设置有反向弧面部。反向弧面部可以在振膜振动时降低整个折环部的分割振动，降低偏振。
此外，仅在直线段设置反向弧面部，不会影响弯折段的宽度。由于 折环部的弯折段的宽度大于或等于折环部的直线段与反向弧面部的宽度之和，因此振膜在弯折段具有更大的面积。这使得在弯折段设置加强筋变得容易，从而使振膜的性能调试变得容易。
此外，反向弧面部14能够降低在大电压下扬声器的谐波失真(THD)。
通过以下参照附图对本申请的示例性实施例的详细描述，本申请的其它特征及其优点将会变得清楚。
附图说明
构成说明书的一部分的附图描述了本申请的实施例，并且连同说明书一起用于解释本申请的原理。
图1是根据本申请第一方面的一个实施例的振膜的主视图。
图2是根据本申请第一方面的一个实施例的振膜的剖视图。
图3是根据本申请第一方面的另一个实施例的振膜的剖视图。
图4是根据本申请第一方面的又一个实施例的振膜的主视图。
图5是根据本申请第二方面的一个实施例的振动组件的俯视图。
图6是根据本申请第二方面的一个实施例的振动组件的侧面剖视图。
图7是根据本申请第二方面的一个实施例的振动组件的侧面剖视图。
图8是根据本申请第二方面的另一个实施例的振动组件的俯视图。
图9是根据本申请第二方面的另一个实施例的振动组件的侧面剖视图。
图10是根据本申请第二方面的另一个实施例的振动组件的侧面剖视图。
具体实施方式
现在将参照附图来详细描述本申请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申请的范围。
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，决不作为对本申请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和设备可能不作详细讨论，但在适当情况下，所述技术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。
图1是根据本申请的第一方面，提供的一个实施例的振膜的主视图。图2是根据本申请的一个实施例的振膜的剖视图。图3是根据本申请的另一个实施例的振膜的剖视图。
如图1-3所示，该用于扬声器的振膜包括中心部11、围绕中心部11设置的折环部12和围绕折环部12设置的连接部13。折环部12包括直线段15和弯折段16。例如，直线段15为折环部12的沿直线延伸的部位。弯折段16为折环部12的沿弧线、折线延伸的部位。在通常情况下，折环部12包括多个直线段15和弯折段16，并且直线段15和弯折段16间隔设置。
在中心部11与折环部12的直线段15之间设置有反向弧面部14，和/或
在连接部13与折环部12的直线段15之间设置有反向弧面部14。
例如，反向弧面部14为与折环部12的凸出方向相反的弧面。反向弧面部14沿折环部12的延伸方向延伸。而在弯折段16与连接部13之间以及弯折段16与中心部11之间均没有设置反向弧面部14，从而不会对弯折段16的宽度造成影响。
反向弧面部14与折环部12的凸出方向相反。反向弧面部14的宽度 小于折环部12的宽度。
在本申请实施例中，在振膜的中心部11与折环部12的直线段15之间设置有反向弧面部14，和/或在连接部13与折环部12的直线段15之间设置有反向弧面部14。反向弧面部14可以在振膜振动时降低整个折环部的分割振动，降低偏振。反向弧面部的宽度小于折环部的宽度，这使得振膜的性能调试变得更加容易。
此外，仅在直线段15设置反向弧面部14，不会影响弯折段16的宽度。由于折环部的弯折段16的宽度大于或等于折环部的直线段15与反向弧面部14的宽度之和，因此振膜在弯折段16具有更大的面积。这使得在弯折段16设置加强筋变得容易，从而使振膜的性能调试变得容易。此外，反向弧面部14能够降低在大电压下扬声器的谐波失真(THD)。
在一个例子中，如图1所示，振膜为矩形。折环部12的直边为直线段15。折环部12的四个角部为弯折段16。在四个直边的至少一个上设置有反向弧面部14。反向弧面部14能降低矩形的振膜的偏振。
可选地，在折环部12的四条直边与中心部和/或连接部之间设置有反向弧面部14。反向弧面部14可以设置在直边的一侧或者两侧。这种设置方式使得振膜的各条直边的反向振幅均匀增加，并且四条直边的振动效果一致。
反向弧面部14使振膜的结构发生了变化。在提高振膜的反向振幅的同时，使得振膜的正向振动变得困难，扬声器单体的Fo(最低振动频率)提高。反向弧面部14越多，则扬声器单体的Fo越高。其中，正向是指折环部12的凸出方向；反向是指与折环部12的凸出方向相反的方向。
优选地，折环部12的弯折段16的宽度大于或等于设置有反向弧面部位置处的折环部12的直线段15与反向弧面部14的宽度之和。通过这种方式，振膜在弯折段16具有更大的面积。这使得在弯折段16设置加强筋变得容易，从而使振膜的性能调试变得容易。
优选地，设置有反向弧面部位置处的折环部的直线段与反向弧面部的宽度之和，等于没有设置反向弧面部位置的直线段的宽度。这样能够有 效地减小振膜的偏振。
在一个例子中，振膜的直边包括两条长边和两条短边。在两条长边与中心部11或连接部13之间设置有反向弧面部14；或者是
在两条短边与中心部11或连接部13之间设置有反向弧面部14。
与在四条直边相对应的位置均设置反向弧面部14相比，设置较少数量的反向弧面部14，能够兼顾改善振膜的偏振以及避免Fo提高的过多。
进一步地，两个反向弧面部14相对于中心部11对称设置。这样使得振膜的两侧振动的效果一致。
在另一个示例中，振膜为跑道形。折环部12的直边为直线段15。折环部12的弧形边为弯折段16。在两个直边的至少一个与中心部和/或连接部之间设置有反向弧面部14。反向弧面部14同样能够降低跑道形的振膜的偏振。用户可以在弧形边上设置加强筋，以对振膜的性能进行调试。
在一个例子中，反向弧面部14设有两个，分别设于振膜振幅偏大一侧和振膜振幅偏小一侧。通常情况下，由于音圈引线单侧拉扯，泄漏孔不对称分布，磁路不对称设计，或者模组出声口单侧设计等造成振膜的振幅不一致。通过在振膜振幅偏大一侧和振膜振幅偏小一侧设置反向弧面部14，能够有效地降低振膜的偏振。
在一个例子中，反向弧面部14设有两个，被设置在相对的两个直线段与中心部和/或连接部之间。两个反向弧面部14分别靠近音圈引线的引出端所在一侧和焊接端所在一侧。
具体地，扬声器单体的振动系统包括音圈和振膜。音圈与振膜的中心部11固定连接。音圈引线由振膜的远离焊盘一侧引出，然后被固定到华司或者外壳上，最后与设置在外壳上的焊盘连接。例如，音圈引线的端部被点焊在焊盘上，形成焊接端。音圈引线的局部悬空设置，以为振膜的振动提供自由度。
在振动时，由于音圈引线的牵制作用，造成振膜的靠近音圈引线的引出端所在一侧的振幅小，靠近焊接端所在一侧的振幅大。在该例子中，在相对的两个直线段与中心部和/或连接部之间设置有反向弧面部14。两 个反向弧面部14分别靠近音圈引线的引出端所在一侧和焊接端所在一侧。该反向弧面部14能减小该侧的振膜的应变，从而有效地减小了由于引线的牵制作用而导致的振膜的偏振。
优选地，振膜是一体注塑成型的。例如，振膜采用高分子材料一体注塑形成折环部12和反向弧面部14。
一体注塑成型的方式形成的折环部12和反向弧面部14连接的部位能够更加平滑。例如，这种方式可以使折环部12与反向弧面部14相切。这使得振膜的结构强度更高，提高了振膜的顺性，减少了振膜在振动时的失真。
优选地，反向弧面部14的内径小于折环部12的内径。通过这种方式，反向弧面部14对振膜的整体结构的影响小，在改善振膜的偏振的同时，不会对振膜的其他性能，例如结构强度、顺性等造成不利影响。
需要说明的是，反向弧面部14和折环部12可以是半圆形、圆弧形或者椭圆弧形。内径是指圆弧形或者椭圆弧形的内径。
优选地，同一振膜的多个反向弧面部14的内径相同。这样，提高了振膜的对称性，进一步降低了振膜的偏振。
本领域技术人员可以根据实际需要设置折环部12以及反向弧面部14的内径。
在一个例子中，振膜为矩形。折环部12为矩形环状。在折环部12的四个角部设置有花纹18。可选地，花纹18为设置在振膜上的凸起或者凹槽。花纹18为直线状或者弧线状。如图4所示，在折环部12的四个角部各设置有多个辐射状的花纹18。花纹18能够抵消振膜在振动时产生的应力，进一步防止振膜发生偏振。
此外，花纹18延长了振膜的使用寿命。
此外，花纹18进一步提高了振膜的顺性，使振膜的振动效果更好。
根据本申请的另一个实施例，提供了一种扬声器单体。具体地，扬声器单体包括振动组件和磁路组件。振动组件包括音圈和本申请提供的振膜。振膜为折环振膜。音圈与振膜的中心部11连接。磁路组件形成磁间 隙。在磁间隙内形成磁场。音圈的自由端插入磁间隙中。
音圈响应外部电路的电信号，在磁间隙内受到安培力的作用，而发生振动。音圈带动振膜振动，以发出声音。
该扬声器单体具有失真小，声音效果好，可靠性好的特点。
根据本申请的第二方面，还提供了一种用于发声装置的振动组件，可以改善发声装置的偏振现象。现有的动圈式发声装置中，引线通常从音圈的一侧引出，这导致音圈及引线的整体结构不对称。另一方面，为了防止出现引线音，引线上通常会进行涂胶，涂胶处理更加抑制了音圈引出有引线的一侧的振动。综合上述，现有发声装置易导致音圈出现偏振现象，使发声装置的声学性能余量降低。
在图1-3所示的一种具体实施方式中，发声装置的振动组件包括振膜2和音圈3，所述音圈3连接于所述振膜2的一侧。所述音圈3具引线段31、非引线段32和连接段33，所述引线段31为音圈上引出引线34的一段，所述非引线段32在整个音圈3中的位置和所述引线段31分布在音圈3中的位置相对，所述连接段33将所述引线段31与非引线段32连接，形成一个闭合的音圈3。
特别地，所述振膜2上具有主折环部21和副弯折段22，所述主折环部1形成一个闭合的环状，所述副弯折段22设置于振膜2与音圈3的所述非引线段32相对应的位置，与所述主折环部21相邻。所述主折环部21向振膜的一侧弯折，所述副弯折段22向振膜的另一侧弯折。
所述副弯折段与主折环部的弯折朝向不同，音圈带动振膜进行振动时，副弯折段会产生的形变，进而抑制了主折环部的形变，抑制了非引线段对应的振膜的振幅，改善发声装置的偏振现象。同时，副折环段的设置，还占据了主折环部一定的宽度，使非引线段对应的振膜的主折环部宽度减小，更加抑制了音圈的非引线段振幅，发声装置的偏振现象进一步得到了改善。
进一步地，所述振膜2还具有中心部和边缘部，所述主折环部21围 绕在所述中心部周围，所述边缘部位于所述主折环部21的外围，所述副弯折段22设置在所述主折环部21和所述中心部之间。
如图2所示，所述音圈3连接在振膜2上与副弯折段22的弯折方向相同的一侧。可选地，如图3所示，所述音圈3也可以连接在振膜2上与主折环部21的弯折方向相同的一侧。本申请对此不进行限制，具体设置音圈连接在振膜上与主折环部弯折方向相同或相反的一侧，技术人员可以根据发声装置的具体结构来进行设置。
所述振膜可以整体呈矩形结构，相应地，所述主折环部也呈近似矩形环状结构。主折环部具有直线段和位于直线段两端的拐角段，所述拐角段将各个直线段相互首尾连接。所述非引线段和引线段的位置分别与两个对称分布的直线段相对应。特别地，在与所述非引线段相对应的位置处，所述副弯折段与所述直线段的位置相对应，仅沿着所述直线段延伸分布。在这种实施方式中，所述副弯折段不会影响到拐角段的结构。可以在拐角段上布设花纹等结构，以改进振膜的声学性能。
但是，本申请并不限制所述副弯折段不能延伸到拐角段处。在其它可选的实施方式中，所述副弯折段也可以从与非引线段对应的直线段一直延伸到直线段的两端。进而延伸到与拐角段对应的位置。
特别地，与所述非引线段相对应的主折环部的宽度，优选小于与所述引线段相对应的主折环部的宽度。减小的宽度由副弯折段所占据。这样，与非引线段对应的主折环部的振动性能下降，能够起到平衡整体振动的作用。
进一步地，与所述非引线段相对应的主折环部与副弯折段的宽度之和，优选等于与所述引线段相对应的主折环部的宽度。这样可以保证振膜整体的结构对称性。
优选地，所述副弯折段22与所述主折环部21的宽度比小于1：3。当副弯折段22与主折环部21宽度比小于1:3时，所述副弯折段22能够适度的抑制所述主折环部21的形变，起到改善偏振现象的作用。若所述副弯折段22与主折环部21的宽度比较大，则所述副弯折段22起到抑制 振幅的作用过强，有可能使所述主折环部21产生的振幅低于正常振幅需求。
优选地，所述副弯折段22与所述主折环部21的高度比小于1：3。当副弯折段22与主折环部21高度比小于1:3时，所述副弯折段22能够有效抑制所述主折环部21的形变，起到改善偏振现象的作用。若所述副弯折段22与主折环部21的高度比较大，则所述副弯折段22自身也能够产生较大振幅的形变。相应地，其所对主折环部21的振幅的抑制作用会降低。
优选地，在所述副弯折段22内涂抹有阻尼剂，阻尼剂能够减小副弯折段的形变能力，进而抑制非引线段处对应的振膜的自由振动，达到改善扬声器的偏振现象，提高发声装置产品的声学性能余量的效果。
可选地，上述阻尼剂也可以替换为其他具有阻尼性的物质，本申请对此不作限制，凡是能达到相同技术效果的方案，均属于本申请的保护范围。
优选地，如图2和图3所示，所述副弯折段22为凹槽状。凹槽状的结构可以用于承载阻尼剂，阻尼剂配置于凹槽状的副弯折段内。在给副弯折段涂抹阻尼胶时，凹槽可以起导向作用，便于自动化设备的涂胶作业，提高产品的生产效率。
可选地，上述副弯折段的可以为其他形状和结构，凡是能达到同样技术效果的形状均属于本申请的保护范围。
在图4-6所示的另一种具体实施方式中，发声装置的振动组件包括振膜2和音圈3，所述音圈3连接于所述振膜2的一侧。所述音圈3具引线段31、非引线段32和连接段33，所述引线段31为音圈上引出引线34的一段，所述非引线段32在整个音圈3中的位置和所述引线段31分布在音圈3中的位置相对，所述连接段33将所述引线段31与非引线段32连接，形成一个闭合的音圈3。
特别地，所述振膜2上具有主折环部21和副弯折段22，所述主折 环部1形成一个闭合的环状，所述副弯折段22设置于振膜2与音圈3的所述非引线段32相对应的位置，与所述主折环部21相邻。所述主折环部21向振膜的一侧弯折，所述副弯折段22向振膜的另一侧弯折。
进一步地，所述振膜2还具有中心部和边缘部，所述主折环部21围绕在所述中心部周围，所述边缘部位于所述主折环部21的外围，所述副弯折段22设置在所述主折环部21和所述边缘部之间。
如图5所示，所述音圈3连接在振膜2上与副弯折段22的弯折方向相同的一侧。可选地，如图6所示，所述音圈3也可以连接在振膜2上与主折环部21的弯折方向相同的一侧。本申请对此不进行限制，具体设置音圈连接在振膜上与主折环部弯折方向相同或相反的一侧，技术人员可以根据发声装置的具体结构来进行设置。
优选地，与所述非引线段相对应的主折环部的宽度，小于与所述引线段相对应的主折环部的宽度。进一步地，与所述非引线段相对应的主折环部与副弯折段的宽度之和，等于与所述引线段相对应的主折环部的宽度。
优选地，所述副弯折段22与所述主折环部21的宽度比小于1:3。
优选地，所述副弯折段22与所述主折环部21的高度比小于1:3。
优选地，在所述副弯折段22内涂抹有阻尼剂。
可选地，上述阻尼剂也可以替换为其他具有阻尼性的物质，本申请对此不作限制，凡是能达到相同技术效果的方案，均属于本申请的保护范围。
优选地，如图5和图6所示，所述副弯折段22为凹槽状。
可选地，上述副弯折段的可以为其他形状和结构，凡是能达到同样技术效果的形状均属于本申请的保护范围。
本申请还提供了一种发声装置，包括壳体、磁路系统以及上述实施例一或实施例二提供的振动组件，所述磁路系统和振动组件设置在所述壳体中，所述此路系统驱动所述振动组件振动。
上述两种实施方式提供的振动组件有效的改善了偏振的现象。进一 步地，本申请的发声装置采用这种振动组件，偏振现象也能够得到有效改善，声学性能得到提升。
通过上面的描述，可以知道本发明至少包括如下几个方面的内容。
E1.一种用于发声装置的振动组件，包括振膜和音圈；
所述振膜的一侧表面连接有音圈，所述音圈具有引线段、非引线段和连接段，所述引线段和非引线段分布在音圈的相对位置，所述连接段将引线段与非引线段连接，所述引线段上延伸出引线；
所述振膜具有主折环部和副弯折段，所述副弯折段与所述主折环部连接，所述副弯折段位于与所述非引线段对应的位置；
所述主折环部向振膜的一侧弯折，所述副弯折段向振膜另一侧弯折。
E2.根据E1所述的振动组件，所述振膜还具有中心部和边缘部，所述主折环部围绕在所述中心部周围，所述边缘部位于所述主折环部的外围，所述副弯折段设置在所述主折环部和所述边缘部之间；
或者，所述副弯折段设置在所述主折环部和所述中心部之间。
E3.根据E1或E2所述的振动组件，与所述非引线段的位置对应的主折环部包括直线段和位于直线段两端的拐角段，所述副弯折段与所述直线段的位置对应并沿着所述直线段延伸。
E4.根据E1至E3任意之一所述的振动组件，所述副弯折段延伸至与直线段两端的拐角段对应的位置。
E5.根据E1至E4任意之一所述的振动组件，与所述非引线段相对应的主折环部的宽度，小于与所述引线段相对应的主折环部的宽度。
E6.根据E1至E5任意之一所述的振动组件，与所述非引线段相对应的主折环部与副弯折段的宽度之和，等于与所述引线段相对应的主折环部的宽度。
E7.根据E1至E6任意之一所述的振动组件，所述副弯折段与主折环部的宽度比小于1:3；所述副弯折段与主折环部的高度比小于1:3。
E8.根据E1至E7任意之一所述的振动组件，所述副弯折段内设置有阻尼材料。
E9.根据E1至E8任意之一所述的振动组件，所述阻尼材料为涂敷在副弯折段内的阻尼剂。
E10.一种发声装置，包括壳体、磁路系统以及E1至E9任意之一所述的振动组件，所述磁路系统和振动组件设置在所述壳体中，所述振膜的边缘连接在所述壳体上，所述音圈位于所述磁路系统中，所述磁路系统被配置为能驱动所述振动组件振动。
虽然已经通过示例对本申请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，以上示例仅是为了进行说明，而不是为了限制本申请的范围。本领域的技术人员应该理解，可在不脱离本申请的范围和精神的情况下，对以上实施例进行修改。本申请的范围由所附权利要求来限定。

Claims (10)

  1. 一种用于扬声器的振膜，其特征在于，包括中心部、围绕所述中心部设置的折环部和围绕所述折环部设置的连接部，所述折环部包括直线段和弯折段，
    在所述中心部与所述折环部的直线段之间设置有反向弧面部，和/或
    在所述连接部与所述折环部的直线段之间设置有反向弧面部；
    所述反向弧面部与所述折环部的凸出方向相反,且所述反向弧面部的宽度小于所述折环部的宽度。
  2. 根据权利要求1所述的振膜，其特征在于，所述折环部的弯折段的宽度大于或等于设置有反向弧面部位置处的所述折环部的直线段与所述反向弧面部的宽度之和。
  3. 根据权利要求1或2所述的振膜，其特征在于，设置有反向弧面部位置处的所述折环部的直线段与所述反向弧面部的宽度之和，等于没有设置反向弧面部位置的直线段的宽度。
  4. 根据权利要求1至3任意之一所述的振膜，其特征在于，所述振膜为矩形，所述折环部的直边为所述直线段，所述折环部的四个角部为所述弯折段，在四个所述直边的至少一个与所述中心部和/或所述连接部之间设置有所述反向弧面部。
  5. 根据权利要求1至4任意之一所述的振膜，其特征在于，所述折环部的直边包括两条长边和两条短边，在两条所述长边与所述中心部或所述连接部之间设置有所述反向弧面部；或者是
    在两条所述短边与所述中心部或所述连接部之间设置有所述反向弧 面部。
  6. 根据权利要求1至5任意之一所述的振膜，其特征在于，所述振膜为跑道形，所述折环部的直边为所述直线段，所述折环部的弧形边为所述弯折段，在两个所述直边的至少一个与所述中心部和/或所述连接部之间设置有所述反向弧面部。
  7. 根据权利要求1至6任意之一所述的振膜，其特征在于，所述反向弧面部设有两个，分别设于振膜振幅偏大一侧和振膜振幅偏小一侧。
  8. 根据权利要求1至7任意之一所述的振膜，其特征在于，所述反向弧面部设有两个，被设置在相对的两个直线段与所述中心部和/或所述连接部之间，两个反向弧面部分别靠近音圈引线的引出端所在一侧和焊接端所在一侧。
  9. 根据权利要求1至8任意之一所述的振膜，其特征在于，所述振膜为矩形，所述折环部为矩形环状，在所述折环部的四个角部设置有花纹，所述花纹的凸出方向与所述折环部的凸出方向相同或相反。
  10. 一种扬声器单体，其特征在于，包括振动组件和磁路组件，所述振动组件包括如权利要求1-9中的任意一项所述的振膜。
PCT/CN2017/108381 2017-08-31 2017-10-30 用于扬声器的振膜以及扬声器单体 WO2019041507A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111935609A (zh) * 2020-06-30 2020-11-13 瑞声新能源发展(常州)有限公司科教城分公司 一种新型振膜

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204697281U (zh) * 2015-05-18 2015-10-07 歌尔声学股份有限公司 扬声器振膜
CN205249470U (zh) * 2015-12-30 2016-05-18 歌尔声学股份有限公司 一种振膜
CN105979431A (zh) * 2016-07-06 2016-09-28 北京爱德发科技有限公司 一种无源辐射器及扬声器

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204697281U (zh) * 2015-05-18 2015-10-07 歌尔声学股份有限公司 扬声器振膜
CN205249470U (zh) * 2015-12-30 2016-05-18 歌尔声学股份有限公司 一种振膜
CN105979431A (zh) * 2016-07-06 2016-09-28 北京爱德发科技有限公司 一种无源辐射器及扬声器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111935609A (zh) * 2020-06-30 2020-11-13 瑞声新能源发展(常州)有限公司科教城分公司 一种新型振膜

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