WO2015106685A1 - 波浪形悬边结构及振动单元 - Google Patents

波浪形悬边结构及振动单元 Download PDF

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Publication number
WO2015106685A1
WO2015106685A1 PCT/CN2015/070682 CN2015070682W WO2015106685A1 WO 2015106685 A1 WO2015106685 A1 WO 2015106685A1 CN 2015070682 W CN2015070682 W CN 2015070682W WO 2015106685 A1 WO2015106685 A1 WO 2015106685A1
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Prior art keywords
wave
vibration
waveform
structure according
shaped
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PCT/CN2015/070682
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English (en)
French (fr)
Chinese (zh)
Inventor
黄新民
Original Assignee
宁波升亚电子有限公司
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Application filed by 宁波升亚电子有限公司 filed Critical 宁波升亚电子有限公司
Priority to EP15737028.9A priority Critical patent/EP3096537B1/de
Publication of WO2015106685A1 publication Critical patent/WO2015106685A1/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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
    • H04R2307/207—Shape aspects of the outer suspension of loudspeaker diaphragms

Definitions

  • the present invention relates to a sound effect device, and more particularly to a wave-shaped suspension structure of a speaker vibration unit.
  • An existing sound device such as a speaker, generally includes a speaker frame, a diaphragm supported by the speaker frame, a voice coil coupled to the diaphragm, and a magnetic return unit for electromagnetically sensing with the voice coil, thereby
  • the diaphragm is driven to vibrate to reproduce the sound.
  • the diaphragm is mounted at an opening of the speaker frame, wherein when the voice coil is electromagnetically induced to reciprocate, the diaphragm vibration is driven accordingly.
  • the vibration direction of the diaphragm is uncontrolled, so that the diaphragm cannot reproduce a good sound quality.
  • the diaphragm should reciprocate in only one direction with a uniform amplitude. For example, when the diaphragm is horizontally placed, the diaphragm should reciprocate only in the vertical (upward and downward) directions, and the upward displacement of the diaphragm should be with the diaphragm The downward displacement is the same.
  • a typical speaker vibration unit can be used as a vibration system of a speaker to connect to a voice coil to generate sound in response to an input of an audio signal, or it can also function as a passive vibration unit via air pressure. The changes are driven by other speaker systems and the vibrations produce an auxiliary sound effect.
  • the vibration unit of a typical speaker in the prior art includes an intermediate vibration block 1, a suspension 2 located around the vibration block 1, and an outer frame 3. The suspension 2 is arched and coaxial with the vibration block 1.
  • the suspension 2 does not function to restrict the vibration direction of the vibration block 1 in its axial direction during one vibration period. Because the vibrating block 1 moves in a deviation from the axial direction, the suspension 2 itself does not generate a corresponding pulling force to prevent the displacement of the vibrating block 1, but the biasing force of the vibrating block 1 is transmitted to the connection of the suspension 2 to the outer frame 3. It was relieved at the time. That is to say, the suspension 2 does not effectively prevent the offset of the vibration block 1 in time.
  • the reinforcing rib 4 is in line contact with the vibrating block 1 and the outer frame 3, so that when the vibrating block 1 is axially When moving, the pulling force of the axial movement is also quickly transmitted to the reinforcing ribs 4, and is further transmitted to the outer frame 3, so that the axial movement of the vibrating block 1 is also affected by the reinforcing ribs 4. That is to say, although the reinforcing rib 4 plays a role of preventing the offset, the displacement of the vibrating block 1 in the axial direction, that is, the stroke of the vibrating unit is also reduced, which affects the stroke of the entire vibrating unit. To make the sound quality not good, especially the bass sound quality.
  • the stroke of the vibration unit or diaphragm needs to be as large as possible, and the solution in the conventional sound device is usually to make a large-sized vibration unit or diaphragm size, thereby Make the existing sound device not small enough.
  • the sound device that you want to use is as flat and thin as possible, so that its compact products can maintain unique designs. And shape. Large sound effects are not suitable for designing in these compact products.
  • a main object of the present invention is to provide a wave-shaped suspension structure of a vibration unit, wherein the vibration unit includes a vibration element, a frame, and an elastic suspension edge located in the frame around the vibration element, the elastic suspension edge
  • the circumferential direction of the central axis of the vibration unit is formed in a wave shape, thereby effectively preventing the vibration element from being shaken and displaced when vibrating along the central axis direction.
  • Another object of the present invention is to provide a wave-shaped suspension structure of a vibration unit, the elastic suspension including a plurality of limiting ribs extending between the vibration element and the frame to be The limiting rib forms a high and low undulating suspension around the vibrating element, thereby functioning as a limit and preventing the offset.
  • Another object of the present invention is to provide a wave-shaped suspension structure of a vibration unit, wherein the connection between each of the limiting ribs and the frame is a point connection, and each of the limiting ribs has a triangular cross section, thereby The effect of the stable connection is achieved, and the shaking and shifting of the vibrating element can be effectively prevented, and the axial displacement of the vibrating element is not affected to ensure the sound quality effect produced by the vibrating element.
  • Another object of the present invention is to provide a wave-shaped suspension structure of a vibration unit, the elastic suspension edge comprising a plurality of waveform limiting segments formed around the vibrating element, and a plurality of the waveform limiting segment edges Office
  • the peripheral direction of the vibrating element forms a wave shape, so that these limit segments function to limit the radial displacement of the vibrating element.
  • Another object of the present invention is to provide a wave-shaped suspension structure of a vibration unit in which a suspension edge forms an arch or a wave shape in a radial section, and the vibration unit of the present invention is along the vibration element.
  • the circumferential direction of the central axis forms a wave shape such that when the vibrating element is displaced in a certain radial direction from its central axis, the wavy structure formed by the surrounding waveform stop segments effectively blocks such radial offset, Thereby the displacement of the vibrating element is limited in the axial direction.
  • Another object of the present invention is to provide a wave-shaped suspension structure of a vibration unit of a vibration unit.
  • the wave suspension in the conventional vibration unit has a corrugation extending along the circumferential direction of the vibration element, resulting in a suspension in the conventional vibration unit.
  • the side cannot play the buffering offset effect on the offset force, and in the elastic suspension edge of the present invention, the canceling action can be provided in time and effectively to prevent the displacement of the vibrating element.
  • Another object of the present invention is to provide a wave-shaped suspension structure of a vibration unit, which can form a plurality of grooves spaced apart from each other and along the circumference along the circumference of the vibration element, thereby
  • the elastic hanging edge forms a series of concave-convex structures along the periphery of the vibrating member, and the concave-convex structure may be formed in a wave shape, thereby preventing further radial displacement of the vibrating member.
  • Another object of the present invention is to provide a wave-shaped suspension structure of a vibration unit which can be bonded to the vibration element and the frame using glue, or when the elastic suspension is formed
  • the elastic material can be coated on the vibrating element at the same time, so that the manufacturing method is easy and the cost is low.
  • Another object of the present invention is to provide a wave-shaped suspension structure of a vibration unit which can be used for making a horn or a passive vibration plate for providing an auxiliary sound effect, and can improve a sound quality effect, particularly a bass effect.
  • Another object of the present invention is to provide a wave-shaped suspension structure of a vibration unit, wherein the vibration unit of a small size and a small volume can achieve a large stroke, a better sound quality effect, and thus the vibration of the present invention.
  • the unit can be used in compact digital products such as flat-panel TVs, mobile phones, and laptops.
  • the present invention provides a wave-shaped suspension structure which is adapted to be disposed between a vibration element of a vibration unit and a frame, and includes a resilient suspension edge, wherein the elastic suspension edge is disposed in the a vibrating element extending between the vibrating element and the frame, the elastic suspension comprising a plurality of waveform limiting segments, wherein the plurality of the waveform limiting segments are formed along the circumferential direction around the vibrating element A wavy structure to limit the direction of movement of the vibrating element in the axial direction to prevent sway and offset of the vibrating element.
  • a groove is formed between two adjacent wave-shaped limiting segments to form the wavy structure, and the shape of the wavy structure is selected from a sinusoidal waveform and a square shape.
  • a waveform, a triangular waveform, and a sawtooth waveform is selected from a sinusoidal waveform and a square shape.
  • each of the waveform limiting segments extends vertically from an outer peripheral surface of the vibrating member toward an inner peripheral surface of the frame.
  • each of the waveform limiting segments extends obliquely from an outer peripheral surface of the vibrating member toward an inner peripheral surface of the frame.
  • an inner edge of each of the waveform limiting segments connected to the vibrating element has a substantially sinusoidal waveform.
  • the inner edge shape of each of the waveform limiting segments connected to the vibrating element is selected from one of a sinusoidal waveform, a square waveform, a triangular waveform, and a sawtooth waveform.
  • the outer edge of each of the waveform limiting segments connected to the frame is an arc shape along the circumferential direction.
  • the outer edge of each of the waveform limiting segments connected to the frame has a substantially sinusoidal waveform.
  • the outer edges of the respective waveform limiting segments to which the frames are connected are arcuate along the circumferential direction.
  • the outer edge shape of each of the waveform limiting segments connected to the frame is selected from one of a sinusoidal waveform, a square waveform, a triangular waveform, and a sawtooth waveform.
  • the vibration element connecting end of each of the waveform limiting segments connected to the vibrating element comprises two parts, and a clip is formed between the two parts of the connecting end of the vibrating element angle.
  • the frame connection end of each of the waveform limiting segments connected to the frame includes two portions, and an angle is formed between the two portions of the connection end of the frame connection end. .
  • the frame connection ends of the respective waveform limiting segments connected to the frame are connected to each other and form a loop-shaped outer edge, and the annular outer edge and the vibration The components are coaxial.
  • an angle formed between the two portions of the connecting end of the vibrating member is an acute angle, a right angle or an obtuse angle.
  • the peak position of each of the waveform limiting segments is lower than the plane of the outer surface of the vibrating member.
  • the peak position of some or all of the waveform limiting segments is higher than the plane of the outer surface of the vibrating element.
  • a plurality of the waveform limiting segments are symmetrically arranged with respect to a center of the vibrating member.
  • the shape of the vibrating member is selected from one of a circle, an ellipse, a rectangle, and a polygon.
  • the shape of the vibrating member is circular, and each of the waveform limiting segments is disposed along a radial direction of the vibrating member, thereby forming a plurality of the radial shapes.
  • Waveform limit segment is disposed along a radial direction of the vibrating member, thereby forming a plurality of the radial shapes.
  • the number of the waveform limiting segments is 2-100, and the corrugation height of each of the waveform limiting segments is 1-50 mm.
  • the size of the vibration unit is 0.0005-0.2 square meters.
  • the vibration element includes a vibration weighting block, and a coating layer covering the vibration weighting block, the material of the coating layer and the elastic suspension edge
  • the materials are the same.
  • the elastic suspension is bonded to the frame and the vibrating member.
  • the vibration unit is used to connect a voice coil, and the voice coil is coupled to a magnetic return system to be assembled into a speaker.
  • the vibration unit acts as a passive vibration plate, and shares a vibration cavity with at least one main vibration horn.
  • the main vibration horn vibrates in response to the input of the audio signal, by the change of the air pressure in the vibration cavity, The vibration unit is driven to vibrate to generate an auxiliary sound effect.
  • the vibration unit is disposed shoulder to shoulder with the main vibration horn.
  • the vibration unit is disposed back to back coaxially with the main vibration horn.
  • the present invention provides a wave-shaped suspension structure adapted to be disposed between a vibrating member and a frame of a vibration unit, including an elastic suspension, wherein the elastic suspension Provided around the vibrating element and extending between the vibrating element and the frame, the elasticity
  • the suspension includes a plurality of sets of connecting ribs, wherein each set of the connecting ribs includes at least one top side connecting rib and at least one bottom side connecting rib, the top side connecting ribs from the top side of the outer peripheral surface of the vibrating element to the An inner peripheral surface of the frame extends, and the bottom side connecting rib adjacent to the top side connecting rib extends from a bottom side of the outer peripheral surface of the vibrating member toward an inner peripheral surface of the frame, wherein the connecting rib is adjacent An arcuate connecting section is formed such that the elastic suspension forms a wavy structure around the vibrating element.
  • a groove is formed between each of the arcuate connecting segments to form the wavy structure, and the shape of the undulating structure is selected from a sinusoidal waveform, a square waveform, and a triangular waveform. And one of the sawtooth waveforms.
  • each of the connecting ribs and the connecting section are made of different elastic materials.
  • each of the connecting ribs and the connecting section are made of the same elastic material.
  • an angle is formed between two adjacent arcuate connecting sections.
  • each set of the connecting ribs includes a top side connecting rib and a bottom side connecting rib, and a cross section of the inner edge of the elastic hanging edge connected to the vibrating element A substantially sinusoidal waveform is formed.
  • each set of the connecting ribs comprises two top side connecting ribs and two bottom side connecting ribs, and the bottom side connecting ribs are respectively located on two sides of the top side connecting rib.
  • the cross-sectional shape of the inner edge of the elastic suspension connected to the vibrating element is selected from one of a sinusoidal waveform, a square waveform, a triangular waveform, and a sawtooth waveform.
  • each of the top side connecting ribs extends vertically or obliquely from the outer peripheral surface of the vibrating member toward the inner peripheral surface of the frame.
  • each of the bottom side connecting ribs extends vertically or obliquely from the outer peripheral surface of the vibrating member toward the inner peripheral surface of the frame.
  • a frame connecting end of the elastic suspension connected to an inner circumferential surface of the frame forms a loop-shaped outer edge, and the annular outer edge is shared with the vibrating member axis.
  • the shape of the vibrating member is selected from one of a circle, an ellipse, a rectangle, and a polygon.
  • the shape of the vibrating element is a circle, each of the The connecting ribs are disposed along a radial direction of the vibrating element.
  • the vibration element includes a vibration weighting block, and a coating layer covering the vibration weighting block, the material of the coating layer and the elastic suspension edge
  • the materials are the same.
  • the elastic suspension is bonded to the frame and the vibrating member.
  • the vibration unit is configured to connect a voice coil, and the voice coil is coupled to a magnetic return system to be assembled into a speaker.
  • the vibration unit acts as a passive vibration plate, and shares a vibration cavity with at least one main vibration horn.
  • the main vibration horn vibrates in response to the input of the audio signal, the air pressure in the vibration cavity changes.
  • the vibration unit is driven to vibrate to generate an auxiliary sound effect.
  • the vibration unit is disposed side by side with the main vibration horn.
  • the vibration unit is disposed coaxially back to back with the main vibration horn.
  • the present invention also provides a wave-shaped suspension structure adapted to be disposed between a vibrating member of a vibration unit and a frame, comprising an elastic suspension, wherein the elastic suspension Arranging around the vibrating element and extending between the vibrating element and the frame, and the elastic suspension forming a plurality of grooves disposed at intervals around the vibrating element, the plurality of The grooves are arranged in a ring shape, and the elastic hanging edge forms a wave-shaped structure along a circumferential direction of the vibrating member, the elastic hanging edge restricting a moving direction of the vibrating member to an axial direction.
  • a plurality of the grooves are radially arranged.
  • a plurality of the grooves are symmetrically arranged with respect to a center of the vibrating member.
  • the elastic suspension comprises a plurality of arcuate connecting segments, the grooves are formed between two adjacent arcuate connecting segments, and two adjacent ones are The grooves are respectively located on opposite sides of the elastic suspension.
  • the number of the grooves is 2 to 100.
  • the outer edge of the elastic suspension has a loop shape and is coaxial with the vibration element.
  • the outer edge of the elastic suspension has a shape selected from one of an annular sinusoidal waveform, a circular square waveform, a circular triangular waveform, and an annular sawtooth waveform.
  • the shape of the inner edge of the elastic suspension is selected from one of an annular sinusoidal waveform, a circular square waveform, a circular triangular waveform, and an annular sawtooth waveform.
  • the vibration unit is configured to connect a voice coil, and the voice coil is coupled to a magnetic return system to be assembled into a speaker.
  • the vibration unit acts as a passive vibration plate, and shares a vibration cavity with at least one main vibration horn.
  • the main vibration horn vibrates in response to the input of the audio signal, the air pressure in the vibration cavity changes.
  • the vibration unit is driven to vibrate to generate an auxiliary sound effect.
  • the vibration unit is disposed side by side with the main vibration horn.
  • the vibration unit is disposed coaxially back to back with the main vibration horn.
  • the present invention also provides a vibration unit comprising:
  • the elastic suspension is disposed around the vibrating element and extends between the vibrating element and the frame, the elastic suspension comprising a plurality of waveform limiting segments, wherein the plurality of waveform limits
  • the bit segment forms a wavy structure around the vibrating element along the circumferential direction to restrict the direction of movement of the vibrating element to the axial direction to prevent sway and offset of the vibrating element
  • FIG. 1 is a schematic structural view of a speaker vibration unit in the prior art.
  • FIG. 2A is a schematic structural view of an improved speaker vibration unit in the prior art.
  • Fig. 2B is a schematic cross-sectional view taken along line A-A of Fig. 2A.
  • Figure 3 is a perspective view of a vibration unit in accordance with a first preferred embodiment of the present invention.
  • FIG. 4 is an exploded perspective view of a vibration unit in accordance with the above first preferred embodiment of the present invention.
  • Fig. 5A is a cross-sectional view taken along line B-B of Fig. 3.
  • Fig. 5B is a cross-sectional view taken along line C-C of Fig. 3.
  • Figure 6 is a perspective view of a vibrating unit having a wave-shaped suspension according to a second preferred embodiment of the present invention.
  • Figure 7 is an exploded perspective view of a vibration unit according to the above second preferred embodiment of the present invention.
  • Figure 8 is a partially enlarged schematic view of the portion D in Figure 6.
  • Figure 9 is a schematic cross-sectional view taken along line E-E of Figure 6.
  • Fig. 10A is a perspective view showing the application of the vibration unit according to the above second preferred embodiment of the present invention to manufacture a speaker.
  • Fig. 10B is an exploded perspective view showing the speaker of the second preferred embodiment of the present invention applied to the manufactured speaker.
  • Figure 11A is a perspective view showing the application of the vibration unit of the above second preferred embodiment of the present invention to the production of a passive diaphragm.
  • Fig. 11B is a cross-sectional view showing a passive vibration plate manufactured by the vibration unit according to the second preferred embodiment of the present invention when it is used on a speaker.
  • Figure 12 is a perspective view of a vibration unit according to a modified embodiment of the second preferred embodiment of the present invention.
  • Figure 13 is an exploded perspective view of a vibration unit according to a modified embodiment of the above second preferred embodiment of the present invention.
  • Figure 14 is a partially enlarged schematic view of the portion F in Figure 12;
  • Figure 15 is a schematic cross-sectional view taken along line G-G of Figure 12;
  • Figure 16 is a perspective view of a vibration unit having a wave-shaped suspension according to a third preferred embodiment of the present invention.
  • Figure 17 is an exploded perspective view of a vibration unit according to the above third preferred embodiment of the present invention.
  • Figure 18 is a partially enlarged schematic view showing a portion H in Figure 16;
  • Figure 19 is a schematic cross-sectional view taken along line I-I of Figure 16.
  • Figure 20 is a perspective view of a vibration unit according to a modified embodiment of a third preferred embodiment of the present invention.
  • Figure 21 is an exploded perspective view of a vibration unit according to a modified embodiment of the above third preferred embodiment of the present invention.
  • Figure 22 is a partially enlarged schematic view showing a portion J in Figure 20 .
  • Figure 23 is a schematic cross-sectional view taken along line K-K of Figure 20.
  • Figure 24 is a perspective view of a vibration unit having a wave-shaped suspension according to a fourth preferred embodiment of the present invention.
  • Figure 25 is an exploded perspective view of a vibration unit according to the above fourth preferred embodiment of the present invention.
  • Figure 26 is a partially enlarged schematic view of the portion L in Figure 24 .
  • Figure 27 is a schematic cross-sectional view taken along line M-M of Figure 24.
  • a vibration unit 100 according to a first preferred embodiment of the present invention, comprising a vibrating member 10 located in the middle, a suspension structure around the vibrating member 10, and a hanging structure
  • a resilient overhang 20 is included, as well as a frame 30 positioned about the resilient overhang 20.
  • the elastic suspension 20 is made of an elastic material and extends between the vibrating member 10 and the frame 30 to restrict vibration of the vibrating member.
  • the vibrating element 10 can be circular, elliptical, square or other polygonal shape. In this preferred embodiment, the vibrating element 10 is elliptical.
  • the elastic suspension edge 20 also correspondingly forms a substantially elliptical shape around the vibrating element 10.
  • the frame 30 can be of various shapes, and the invention is not limited in this regard.
  • the vibration unit 100 further includes a plurality of limiting ribs 40 extending between the vibrating member 10 and the frame 30 such that the vibrating member 10 A structure of high and low undulations is formed between the frame 30 and the frame 30.
  • the limiting rib 40 is used for limiting action to prevent displacement of the vibrating element 10 from its central axis. More specifically, when the vibrating member 10 is to be offset from its central axis, the corresponding limiting rib 40 generates a reverse pulling force to cancel the offset causing the vibrating member 10 to shift. force.
  • the limiting rib 40 may extend in a direction perpendicular to the outer peripheral surface of the corresponding vibrating element 10 and the inner peripheral surface of the corresponding frame 30, as shown in FIG. It may be arranged along the radial direction of the vibration unit 10 or obliquely. This arrangement can produce corresponding pulling forces along these directions, effectively preventing the vibrating elements from shifting in these directions.
  • these limiting ribs 40 can be evenly arranged around the vibrating element 10 and can be arranged symmetrically with respect to the center of the vibrating element 10.
  • these limiting ribs 40 include a left side limiting rib 401 and a right side limiting rib 402.
  • the vibrating element 10 moves up and down along the axial direction, and when the vibrating element 10 wants to be shifted to the left, the right side limiting rib 402 is immediately received. Reverse pull to the right, Thereby the vibrating element 10 is prevented from shifting further to the left.
  • the vibrating member 10 when the vibrating member 10 is intended to be shifted to the right, it is immediately subjected to the reverse pulling force of the left limiting rib 401 to the left, thereby preventing the vibrating member 10 from being further shifted to the right.
  • the elastic suspension 20 and the limiting rib 40 can effectively restrict the vibration direction of the vibrating member 10 in the up and down direction along the axial direction.
  • the elastic suspension 20 may have the structure shown in FIG. 1 disposed coaxially with the vibrating member 10, and along the radial direction of the vibrating member 10, the cross section thereof is wavy or arched. As shown in FIG. 5B, an annular ridge can be formed along the central axis of the vibrating member 10. It is to be noted that each of the limiting ribs 40 is convexly disposed from the elastic suspension edge 20 to form a high and low relief structure in the circumferential direction of the vibrating member 10. That is, the "wavy shape" of the present invention may not be a strict wave shape similar to water, but a wrinkle structure or a corrugated paper structure may be formed around the vibrating member 10.
  • a plurality of the limiting ribs 40 substantially divide the elastic suspension edge 20 into a plurality of hanging sections 201.
  • the number of the limiting ribs 40 is not limited, and it can be adjusted according to different needs. In the example shown in FIG. 3, eight of said limit ribs 40 divide said elastic overhang 20 into eight of said overhang sections 201.
  • Each of the limiting ribs 40 is also made of an elastic material, which may be made of the same elastic material as the elastic hanging edge 20, or may be made of a different elastic material. When the limiting rib 40 and the elastic suspension 20 are made of the same material, a plurality of the limiting ribs 40 and the elastic suspension 20 may be integrally formed.
  • a predetermined elastic material can be injected using a molding die in one injection molding step, thereby simultaneously producing a combination with a plurality of the stopper ribs 40 and the elastic suspension edge 20.
  • the predetermined elastic material may also be coated on the vibrating member 10 during the molding process to form an elastic coating layer 12.
  • the vibrating member 10 may include an inner vibration weighting block 11 and an outer elastic coating layer 12.
  • the elastic suspension 20 and the limiting rib 40 can also be bonded to the frame 30 and the vibrating element 10 by glue in a conventional manner.
  • the arched structure of the elastic suspension 20 can form an annular groove 202.
  • Each of the limiting ribs 40 may be disposed outwardly on both sides of the elastic suspension 20 or only on one side of the elastic suspension 10 .
  • each of the limiting ribs 40 and the annular groove 202 are located on both sides of the elastic suspension edge 20, that is, each of the limiting ribs 40 does not extend into the ring.
  • the groove 202 extends only on one side of the elastic suspension 10, as shown in FIG. 5B, which protrudes convexly on the upper side of the elastic suspension 10.
  • a groove 203 is formed between the two adjacent limiting ribs 40, so that the elastic suspension 20 and the limiting rib 40 are at the vibrating element.
  • a structure of high and low undulations is formed around the periphery of 10.
  • each of the limiting ribs 40 may have a triangular shape, a trapezoidal shape, a rhombus shape, or the like, so as to stably position the connection and prevent the vibration element 10 from being obstructed. Axial movement. More specifically, in the examples shown in FIGS. 3 and 5A, each of the limiting ribs 40 has a sheet shape and a triangular cross section. The triangular limiting rib 40 may be connected to the vibrating element 10 through a bottom edge of the triangle, a vertex of the triangle is connected to the frame 30, or may be connected to the frame 30 through a bottom edge of the triangle, triangular A vertex is connected to the vibrating element 10.
  • each of the limiting ribs 40 includes a vibrating element connecting end 41 and a frame connecting end 42.
  • the vibrating element connecting end 41 is in line connection with the outer peripheral surface 101 of the vibrating element 10, that is, the triangular bottom edge of the limiting rib 40 is in contact with and connected to the outer peripheral surface 101 of the vibrating element 10.
  • the frame connecting end 42 is point-connected to the inner peripheral surface 301 of the frame 30, that is, the apex of the triangle of the limiting rib 40 is in contact with and connected to the inner peripheral surface 301 of the frame 30.
  • the triangle formed by the cross section of the limiting rib 40 may be any triangular shape, such as a right triangle, an isosceles triangle, and may form an equilateral triangle. It should be noted that each side of the triangle here may be a straight line or a curve. In the example shown in FIG. 5A, the portion of each of the limiting ribs 40 connected to the elastic suspension 20 may be It is curved.
  • this design makes the connection strength of the limiting rib 40 and the vibration element 10 greater than the connection strength with the frame 30.
  • the thrust for pushing the vibration element 10 to move in the axial direction is not transmitted to the frame 30 quickly, and the stroke of the vibration element 10 is the axis.
  • the displacement is not greatly affected. That is, the pulling force applied by the frame 30 to the limiting rib 40 to pull the vibrating element 10 back to its original position is not transmitted to the vibrating element 10 quickly, but the vibrating element 10 is made as far as possible.
  • the maximum axial displacement is reached. That is to say, when the limiting rib 40 is not allowed to start axial displacement from the intermediate initial position, it is immediately subjected to the restoring force from the frame 30 to shorten the axial displacement.
  • the reinforcing rib 4 is linearly connected to the vibration block 1 and the outer frame 3, and has a substantially rectangular cross section such that both ends of the reinforcing rib 4 pass through the vibration block 1 and the outer frame 3.
  • the connection structure is the same so as to have the same connection strength.
  • the pulling force of the pulling back vibration block 1 by the outer frame 3 and the reinforcing ribs 4 can be applied to the vibration block 1 in real time, and the axial displacement of the vibration block 1 is also affected. That is to say, although the reinforcing rib 4 can function to reduce the offset of the vibrating block 1, it has a serious adverse effect on the stroke of the vibrating block 1.
  • the present invention enables each of the limit ribs One end of 40 forms a point connection with the frame 30, and the other end forms a line connection with the vibrating element 10, which can prevent the shaking and shifting of the vibrating element 10, and can not affect the vibrating element 10. Axial displacement.
  • 6 to 11B are a vibration unit 100A according to a second preferred embodiment of the present invention, comprising a vibrating member 10A surrounding a wave-shaped suspension structure around the vibration member 10A, the wave-shaped suspension structure
  • the elastic overhang 20A is included, as well as the frame 30A.
  • the elastic suspension 20A extends between the vibrating element 10A and the frame 30A.
  • the elastic suspension 20A forms a wavy structure in the circumferential direction around the vibrating member 10A.
  • the elastic suspension 20A includes a plurality of waveform stopper segments 21A disposed along the circumferential direction such that the plurality of the waveform stopper segments 21A form a wave-shaped structure around the vibration element 10A.
  • the overhang 2 in Fig. 1 is formed with an arched or wavy structure only in the radial direction of the vibrating block 1, so that the offset action of the vibrating member 10A cannot be effectively prevented.
  • the plurality of waveform limit segments 21A of the present invention are used for limiting action to prevent displacement of the vibrating member 10A from its central axis X. More specifically, when the vibrating element 10A is to be offset from its central axis X to produce an offset in a certain direction, the corresponding waveform limit segment 21A generates a pulling force in the opposite direction to cancel the vibration element 10A. An offset force that produces an offset. It is worth mentioning that these waveform limiting segments 21A can be evenly arranged around the vibrating element 10A and can be arranged symmetrically with respect to the center of the vibrating element 10A.
  • a plurality of the waveform limit segments 21A include a left waveform limit segment 21A and a right waveform limit segment 21A.
  • the vibrating member 10A moves up and down along the X-axis, and when the vibrating member 10A wants to shift leftward along the Y-axis shown in FIG. 6, Immediately, the reverse pulling force of the right waveform limit segment 21A to the right is prevented, thereby preventing the vibrating element 10A from being further shifted to the left.
  • the vibrating member 10A wants to be right-shifted along the Y-axis shown in Fig.
  • Each of the waveform limit segments 21A includes a vibrating element connection end 211A and a frame connection end 212A.
  • the vibrating element connecting end 211A may have a waveform in a section along the circumferential direction and is connected to the outer peripheral surface 101A of the vibrating element 10A.
  • the frame connection end 212A is an outer The edge is connected to the inner peripheral surface 301A of the frame 30A. More specifically, as a more detailed description, as shown in FIG. 8, in this preferred embodiment, the vibrating element connection end 211A may have two lower side connection sites 2111A and 2112A, and an upper side connection site 2113A. .
  • the line between the two lower side connection sites 2111A and 2112A and the upper side connection site 2113A may form a triangle.
  • three connection sites 2121A, 2122A, and 2123A extending from the lower side connection sites 2111A and 2112A and the upper connection site 2113A to the inner circumferential surface 301A of the frame 30A, respectively, are three connection positions.
  • Points 2121A, 2122A, and 2123A are formed on the frame connection end 212A, and the line between the three connection sites 2121A, 2122A, and 2123A extends along the inner circumferential surface of the frame and is a curved line segment.
  • the waveform limiting section 21A has an inner edge and an outer edge, and the inner edge connected to the outer peripheral surface 101A of the vibrating element 10A has a wave shape, or is called an arch shape.
  • An outer edge of the waveform limiting segment 21A connected to the inner circumferential surface 301A of the frame 30A extends along the inner circumferential surface 301A of the frame 30A and is curved, and is located perpendicular to the central axis X of the vibrating element. On the same plane.
  • the vibrating element connecting end 211A of each of the waveform limiting segments 21A is divided into two parts, and an angle can be formed between the two parts.
  • the angle formed may be an acute angle, a right angle or an obtuse angle.
  • the undulating structure of the present invention can prevent the vibrating member 10A from being displaced, and the thrust that urges the vibrating member 10A to move in the axial direction is not transmitted to the frame 30A quickly, and the vibration is caused.
  • the stroke of the element 10A i.e., the axial displacement, is not greatly affected. That is, the pulling force applied by the frame 30A to the waveform limiting section 21A to pull the vibrating element 10A back to its original position is not quickly transmitted to the vibrating element 10, but the vibrating element is made as far as possible. 10A reaches the maximum axial displacement.
  • connection strength of the waveform limiting segment 21A to the vibrating element 10A is greater than the connection strength with the frame 30A, that is, the inner edge of the waveform limiting segment 21A is
  • the connecting structure of the vibrating member 10A is triangular and more stable so as to be stronger than the connection between the outer edge and the frame 30. It will be appreciated by those skilled in the art that the manner of connection can be reversed. That is, the connection structure of the outer edge of the waveform limiting segment 21A and the frame 30A is triangular, and the connection between the outer edge and the vibrating element 10A is an arc in the same plane, instead of a high and low undulation.
  • a groove 203A is formed between the adjacent two of the waveform limiting segments 21A, thereby forming a series of mutually spaced grooves 203A along the circumferential direction of the vibrating member 10, thereby forming a wave. Shape structure.
  • the waveform limiting section of this preferred embodiment of the present invention can be integrally formed by injecting a predetermined elastic material using a molding die in an injection molding step. It is worth mentioning that during the molding process, the predetermined elastic material may also be coated on the vibrating member 10A to form an elastic coating layer 12A. That is, the vibrating member 10A may include an inner vibration weighting block 11A and an outer elastic covering layer 12A as shown in FIG. It is to be noted that the elastic suspension 20A can also be bonded to the frame 30A and the vibrating member 10A by glue using a conventional method.
  • the waveform limit segment 21A forms the height of the corrugations.
  • the peak position of each of the waveform stop segments 21A may be lower than the outer surface 102A of the vibrating member 10A and may be lower than the outer surface 302A of the frame 30A.
  • the peak position of each of the waveform limiting segments 21A' may be higher than the outer surface 102A of the vibrating member 10A and may be higher than the outer surface 302A of the frame 30A.
  • the vibration unit 100A obtained in this embodiment of the invention has a resonance frequency of 5 - 200 Hz
  • the elastic suspension 20A material may be any thermosetting rubber and thermoplastic elastomer, and has suitable Hardness, for example, Shore hardness of 5-85A.
  • the corrugation height of each of the waveform limiting segments 21 is 1 - 50 mm, and the number of corrugations is 2 - 100.
  • the vibration unit produced may have a size of 0.0005 - 0.2 square meters. It is worth mentioning that these specific values are only examples, and are not subject to specific restrictions. In actual practice, adjustments can be made as needed. It is worth mentioning that these data are also suitable for the vibration unit produced in other embodiments of the invention.
  • the vibration unit 100A in this preferred embodiment of the present invention can be used as a vibration system of the speaker 1000A, and the vibration element 10A of the vibration unit 100A is connected to the voice coil 110A.
  • the voice coil 110A and the magnetic return system 120A are electromagnetically induced, so that when an audio signal is input in the speaker 1000A, the voice coil 110A moves back and forth in the magnetic field of the magnetic return system 120A, thereby driving the vibrating element 10A back and forth. Vibration to produce sound.
  • the elastic suspension 20A of the present invention restricts the movement of the vibrating member 10A in the axial direction by its wavy structure, thereby making the generated sound effect more pure.
  • the vibration unit 100A in this preferred embodiment of the present invention can be used as a passive vibration plate of the speaker 1000A'.
  • the speaker 1000A' may include a main vibration horn 1100A', and a vibration unit 100A.
  • the main vibration horn 1100A' can vibrate to generate sound in response to an input of an audio signal.
  • the vibration unit 100A shares a vibration with the main vibration horn 1100A'
  • the cavity 1200A' when the main vibrating horn 1100A' vibrates, the vibration unit 100A is also driven to vibrate to generate an auxiliary sound effect by the change of the air pressure of the vibrating chamber 1200A', thereby improving the sound quality, particularly the bass effect.
  • the main vibration horn 1100A' may be a conventional horn structure or a horn or a speaker made of the vibration unit 100A of the present invention.
  • the speaker 1000A' may include one or more of the main vibration horn 1100A' and one or more of the vibration units 100A.
  • the main vibration horn 1100A' and the vibration unit 100A may be disposed side by side, as shown in Fig. 11A, or may be disposed coaxially back to back.
  • the vibration unit 100A of the preferred embodiment is used for both the speaker 1000A and the passive diaphragm of the speaker 1000A'.
  • the vibration unit of the other embodiment can also be applied to the passive vibration plate in which the speaker 1000A and the speaker 1000A' are fabricated.
  • a vibration unit 100B according to a third preferred embodiment of the present invention, comprising a vibrating member 10B surrounding a wave-shaped suspension structure around the vibration member 10B, the wavy suspension
  • the edge structure includes a resilient overhang 20B, and a frame 30B.
  • the elastic suspension 20B extends between the vibrating element 10B and the frame 30B.
  • the elastic suspension 20B forms a wavy structure in the circumferential direction around the vibrating member 10B.
  • the elastic suspension 20B includes a plurality of waveform stopper segments 21B disposed along the circumferential direction such that the plurality of the waveform stopper segments 21B form a wave-shaped structure around the vibration element 10B.
  • the vibration unit 100B in this preferred embodiment is similar in structure to the vibration unit 100A in the second preferred embodiment described above. The difference is that the two ends of each of the waveform limiting segments 21B, that is, the structure of the vibrating element connecting end 211B and the frame connecting end 212B are the same. That is, the inner edge and the outer edge of each of the waveform limiting segments 21B may be a wave or arch structure. As shown in Fig. 18, the upper apex and the lower two bottom points are connected to each other to form a triangle.
  • the vibrating element 10B is circular.
  • a plurality of the waveform limit segments 21B may be disposed along a radial direction of the vibrating member 10B to form a plurality of radial radial waveform limiting segments 21B. That is to say, the straight lines in which the corrugations of the respective waveform limiting segments 21B extend may pass through the center of the vibrating element to be uniformly radiated.
  • a plurality of the radial waveform limiting segments 21B radially limit the position of the vibrating member 10B, preventing the vibrating member 10B from being displaced along a certain radial direction so as to be movable only in the axial direction.
  • the moving unit 100C similarly, includes a vibrating element 10C surrounding a wave-shaped hanging edge structure around the vibrating element 10C, the wave-shaped hanging edge structure including a resilient suspension 20C, and a frame 30C.
  • the elastic suspension 20C extends between the vibrating element 10C and the frame 30C. In this embodiment, the elastic suspension 20C forms a wavy structure in the circumferential direction around the vibrating member 10C.
  • the elastic suspension 20C includes a plurality of sets of connecting ribs 22C.
  • Each set of connecting ribs 22 includes at least one top side connecting rib 221C, and at least one bottom side connecting rib 222C adjacent to the top side connecting rib 221C.
  • the elastic suspension 20C further includes a connecting section 23C extending between adjacent connecting ribs 22C (221C, 22C).
  • the top side connecting rib 221C extends from the top side of the outer peripheral surface 101C of the vibrating member 10C toward the inner peripheral surface 301C of the frame 30C, adjacent to the bottom side connecting rib 222C.
  • the bottom side of the outer peripheral surface 101C of the vibrating element 10C extends toward the inner peripheral surface 301C of the frame 30C.
  • An arcuate connecting portion 23C is formed between the top side connecting rib 221C and the bottom side connecting rib 222C.
  • connection ribs 22C are alternately arranged from the top side and the bottom side of the vibrating member 10C toward the frame 30C such that the elastic suspension 20C forms a wave shape around the vibrating member 10C. structure.
  • a plurality of grooves 203C are also formed around the vibrating member 10C.
  • the connecting rib 22C and the connecting portion 23C may be made of different elastic materials or may be made of the same material.
  • the elastic hanging edge 20C can integrate the connecting rib 22C with the connecting portion 23C by injecting an elastic material into the mold. Forming, thereby obtaining a structure similar to the vibration unit 100B described in the second embodiment described above.
  • the vibrating member 10C in this preferred embodiment of the present invention may also be circular, such that the connecting ribs 22C are disposed along the radial direction of the vibrating member 10C, thereby forming a plurality of radial connecting ribs 22C to The role of limiting the radial displacement of the vibrating element 10C is prevented.
  • a vibration unit 100D includes a vibration element 10D, a resilient suspension 20D surrounding the vibration element 10D, and a frame 30D.
  • the elastic suspension 20D extends between the vibrating member 10D and the frame 30D and forms a wavy structure in the circumferential direction around the vibrating member 10D.
  • the wavy structure of the vibration unit 100D of this preferred embodiment of the present invention is similar to the wavy structure of the second embodiment described above, and includes a plurality of waveform limits disposed around the vibrating member 10D.
  • the bit segment 21D, each of the waveform limit segments 21D has a vibrating element connection end 211D and a frame connection end 212D.
  • the inner edge connected to the outer peripheral surface 101D of the vibrating member 10D, that is, the vibrating member connecting end 211D does not form a sharp corner, and the pattern obtained by connecting the respective vertices may be a rectangle.
  • the waveforms of the first three embodiments can form a substantially sinusoidal waveform, and the waveform in this preferred embodiment is a substantially square wave. It can be expected that the graphics obtained by connecting the above vertices may also be trapezoidal or the like. These structures are capable of forming the groove 203D around the vibrating member 10D, thereby forming a undulating wave-like structure through a series of concave-convex structures.
  • each set of connecting ribs 22 includes two adjacent top side connecting ribs 221C, and two adjacent two of the top side connecting ribs 221C
  • the vibration unit 100D in this embodiment of the present invention can be obtained.
  • connection structure between the two ends of the elastic suspension 20D and the vibrating element 10D and the frame 30D may be the same or different.
  • the inner edge of the waveform stop segment 21D connected to the outer peripheral surface 101D of the vibrating member 10D, that is, the vibrating element connecting end 211D may be a broken line segment composed of different line segments, and
  • the outer edge of the waveform limiting segment 21D to which the inner peripheral surface 301D of the frame 30D is connected, that is, the frame connecting end 212D forms only one line segment, such that the elastic suspension 20D is connected to the vibrating element 10D. Greater than the strength of the connection with the frame 30.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
PCT/CN2015/070682 2014-01-16 2015-01-14 波浪形悬边结构及振动单元 WO2015106685A1 (zh)

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CN201410019799.9 2014-01-16
CN201410328141.6A CN104796825B (zh) 2014-01-16 2014-07-10 一种波浪形悬边结构
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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207340149U (zh) * 2016-04-01 2018-05-08 宁波升亚电子有限公司 全方位发声式音箱
CN207039882U (zh) * 2016-05-18 2018-02-23 宁波升亚电子有限公司 辐射器及双悬边扬声器和音箱
CN109788408B (zh) * 2017-11-10 2023-08-22 惠州迪芬尼声学科技股份有限公司 扬声器的悬边结构
CN111920394A (zh) * 2020-06-23 2020-11-13 泰安市泰医医疗器械有限公司 气囊式脉搏探头及其制作和使用方法
WO2023108466A1 (en) * 2021-12-15 2023-06-22 Sonos, Inc. Suspension elements for playback devices
WO2023274399A1 (en) * 2021-07-02 2023-01-05 Sonos, Inc. Systems and methods for stabilizing playback device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090086416A1 (en) * 2005-04-18 2009-04-02 Sony Corporation Vibrating device, jet flow generating device, electronic device, and manufacturing method of vibrating device
CN202135035U (zh) * 2011-06-27 2012-02-01 歌尔声学股份有限公司 水平振动电机
CN102984631A (zh) * 2012-11-14 2013-03-20 宁波升亚电子有限公司 音效片、由音效片制成的扬声器、音箱及其制备工艺

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB368926A (en) * 1931-01-29 1932-03-17 Victor Talking Machine Co Improvements in acoustic diaphragms
US2442791A (en) * 1945-09-07 1948-06-08 Bell Telephone Labor Inc Acoustic device
JPS5434589Y2 (de) * 1978-02-23 1979-10-23
GB2374753B (en) * 2001-01-29 2004-12-22 Goodmans Loudspeakers Ltd Loudspeaker suspension
CN201403189Y (zh) * 2009-04-17 2010-02-10 天津市中环电子信息集团有限公司 一种超薄型扬声器复合盆
CN201499297U (zh) * 2009-09-24 2010-06-02 无锡杰夫电声有限公司 不用定位支片的薄型扬声器

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090086416A1 (en) * 2005-04-18 2009-04-02 Sony Corporation Vibrating device, jet flow generating device, electronic device, and manufacturing method of vibrating device
CN202135035U (zh) * 2011-06-27 2012-02-01 歌尔声学股份有限公司 水平振动电机
CN102984631A (zh) * 2012-11-14 2013-03-20 宁波升亚电子有限公司 音效片、由音效片制成的扬声器、音箱及其制备工艺

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EP3096537A4 (de) 2017-10-18
EP3096537B1 (de) 2019-10-16
CN104796825A (zh) 2015-07-22
EP3096537A1 (de) 2016-11-23
CN104796825B (zh) 2019-07-12

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