WO2022160684A1 - 弹性支片、电子装置及终端 - Google Patents

弹性支片、电子装置及终端 Download PDF

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Publication number
WO2022160684A1
WO2022160684A1 PCT/CN2021/114301 CN2021114301W WO2022160684A1 WO 2022160684 A1 WO2022160684 A1 WO 2022160684A1 CN 2021114301 W CN2021114301 W CN 2021114301W WO 2022160684 A1 WO2022160684 A1 WO 2022160684A1
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WO
WIPO (PCT)
Prior art keywords
elastic
support piece
elastic support
segment
arc
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2021/114301
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English (en)
French (fr)
Inventor
强寿松
杨健斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Goertek Inc
Original Assignee
Goertek Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Goertek Inc filed Critical Goertek Inc
Priority to US18/270,306 priority Critical patent/US12483838B2/en
Publication of WO2022160684A1 publication Critical patent/WO2022160684A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/041—Centering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/06—Arranging circuit leads; Relieving strain on circuit leads
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/041—Centering
    • H04R9/043—Inner suspension or damper, e.g. spider
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/045—Mounting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's

Definitions

  • the present invention relates to the field of electro-acoustic technology, in particular to an elastic support piece, an electronic device and a terminal.
  • Electronic devices such as speakers, are important acoustic components in electronic equipment, which are transducers that convert electrical signals into acoustic signals.
  • electronic equipment which are transducers that convert electrical signals into acoustic signals.
  • the structural design of traditional loudspeakers is also constantly seeking innovation and changes. It not only needs to meet the development trend of thinning, but also pay more and more attention to the optimization of performance and the simplification of the process. and cost control.
  • the main purpose of the present invention is to provide an elastic support piece, an electronic device and a terminal, aiming at solving the problems of easy failure and low reliability of the assembly between the centering support piece and the voice coil or the bracket in the prior art.
  • the present invention proposes an elastic support piece, the elastic support piece includes two installation parts and an elastic part connected between the two installation parts, and the elastic parts are straight and/or curved.
  • a folding structure, one end of each of the mounting parts away from the elastic part is connected to a component that is static or vibrating back and forth along the first direction;
  • At least one of the mounting portions is provided with a first buffer portion, and at least a part of the structure of the first buffer portion is bent toward the first direction from an end of the mounting portion away from the elastic portion.
  • the installation portion and the first buffer portion are connected in a smooth transition.
  • the first buffer portion includes a first connecting segment and a first arc-shaped segment, the first connecting segment is connected to the component that reciprocates along the first direction, and the first connecting segment passes through the The first arc-shaped segment is smoothly connected with the mounting portion.
  • the elastic portion is a planar structure arranged along a second direction, the elastic portion and the two mounting portions are located in the same horizontal plane, and the first direction and the second direction are perpendicular to each other.
  • the first arc segment is a circular arc segment with an inner concave surface facing away from the elastic portion
  • the first connecting segment is a straight segment and the angle between the first connecting segment and the elastic portion is 20° ⁇ 160° .
  • the included angle between the first connecting segment and the elastic portion is 45° ⁇ 95°; and/or the length of the first connecting segment is greater than or equal to 1.5 mm.
  • the first arc-shaped segment is arranged in a Z shape
  • the first connecting segment is a straight segment arranged at an interval from the elastic portion
  • the first connecting segment and the elastic portion are arranged parallel to each other.
  • the first arc-shaped segment includes two corners, and the corner connected to the mounting portion is a circular arc segment with an inner concave surface facing away from the elastic portion, and the corner connected to the first connecting segment is a circular arc segment.
  • the corners are circular arc segments whose inner concave surfaces are arranged toward the elastic portion.
  • the distance between the first connecting segment and the elastic portion is greater than or equal to 0.5 mm; and/or, the length of the first connecting segment is greater than or equal to 1.5 mm.
  • the first arc segment is a semi-circular arc segment with an inner concave surface facing the elastic portion
  • the first connecting segment is a straight segment
  • the first connecting segment and the elastic portion are located on the same horizontal plane Inside.
  • the maximum distance between the first arc-shaped segment and the elastic portion is greater than or equal to 0.5 mm; and/or the length of the first connecting segment is greater than or equal to 1.5 mm.
  • the distance from the bending center line of the first arc-shaped segment to the bending center thereof is R, and the cross-sectional width of the first arc-shaped segment is B, where R ⁇ 2B.
  • the first buffering parts are provided on both the mounting parts, the structures of the two first buffering parts are the same, and the bending directions of the two first buffering parts are arranged in the same direction or in opposite directions .
  • the two mounting portions are respectively a first mounting portion and a second mounting portion, wherein the first mounting portion is provided with the first buffer portion, and the second mounting portion is provided with a second mounting portion
  • a buffer part, the second buffer part and the elastic part are located in the same horizontal plane, and the second buffer part is bent toward or away from the elastic part from the end of the second installation part away from the elastic part.
  • the second buffer portion is an arc-shaped segment, one end of the second buffer portion is connected to a component that is stationary or vibrates reciprocatingly in the first direction, and the other end of the second buffer portion is connected to the other end of the second buffer portion.
  • the second installation part is smoothly connected by transition; or,
  • the second buffer part includes a second connecting segment and a second arc-shaped segment, the second connecting segment is connected to a component that is stationary or vibrating back and forth along the first direction, and the second connecting segment passes through the The second arc-shaped segment is smoothly connected with the second mounting portion.
  • the elastic portion includes a first end connected to one of the two mounting portions, and a second end connected to the other of the two mounting portions;
  • the elastic portion is formed by extending the first end to the second end in a straight line and/or a curve along the same direction or different directions.
  • the elastic support piece is formed by winding a linear structure; alternatively, the elastic support piece is stamped and formed from a sheet structure.
  • the cross-section of the line segment of the elastic support piece is a closed annular structure formed by a curve and/or a straight line.
  • the present invention also provides an electronic device, the electronic device includes a bracket, a vibration unit and any one of the elastic support pieces described above, the elastic support pieces are used to balance the vibration of the vibration unit along the first direction;
  • the vibrating unit includes a vibrating membrane and a voice coil connected to the vibrating membrane; the two mounting parts are respectively connected to the voice coil and the bracket correspondingly;
  • the bracket is a shell or a magnetic yoke.
  • the present invention also provides a terminal, where the terminal includes the above-mentioned electronic device.
  • the first buffer part of the elastic support piece when the elastic support piece is assembled with the voice coil, the shell or the yoke and other supports, the first buffer part of the elastic support piece can be in contact with the voice coil or the support pad, coated with solder paste, and melted by laser welding.
  • the solder paste fixes the elastic support and the pad to realize the assembly of the elastic support and the voice coil or bracket.
  • the bending direction of at least part of the structure of the first buffer part is consistent with the vibration direction of the vibration unit, so that at least part of the structure of the first buffer part is not affected by the vertical vibration of the vibration unit, so this part of the structure is not affected by the vertical vibration of the vibration unit.
  • the structure will not be pulled by rotational force, has good fatigue resistance, and is not easy to break and fall off the solder joints between the elastic support and the pad, which ensures the effectiveness of the assembly between the elastic support and the voice coil or bracket, and has high reliability.
  • FIG. 1 is a three-dimensional schematic diagram of an electronic device according to an embodiment of the present invention.
  • FIG. 2 is a schematic perspective view of an elastic support piece and a voice coil according to an embodiment of the present invention
  • FIG. 3 is a schematic front view of an elastic support piece and a voice coil according to an embodiment of the present invention
  • FIG. 5 is a schematic front view of an elastic support piece according to another embodiment of the present invention, and (d) is a three-dimensional schematic diagram of an elastic support piece according to another embodiment of the present invention;
  • (g) is a schematic front view of an elastic support piece according to another embodiment of the present invention
  • (h) is a schematic perspective view of an elastic support piece according to another embodiment of the present invention
  • (i) is a three-dimensional schematic diagram of an elastic support piece according to an embodiment of the present invention
  • (j) is a three-dimensional assembly schematic diagram of an elastic support piece and a bracket according to an embodiment of the present invention
  • (k) is a three-dimensional schematic diagram of an elastic support piece according to another embodiment of the present invention
  • (m) is a three-dimensional assembly schematic diagram of an elastic support piece and a bracket according to another embodiment of the present invention
  • FIG. 10 is a three-dimensional schematic diagram of an elastic support piece according to another embodiment of the present invention.
  • FIG. 11 is a schematic top view of an elastic support piece according to an embodiment of the present invention based on FIG. 10;
  • FIG. 12 is a schematic top view of an elastic support piece according to another embodiment of the present invention based on FIG. 10;
  • FIG. 13 is a schematic top view of the elastic support piece according to another embodiment of the present invention based on FIG. 10;
  • FIG. 14 is a schematic top view of the electronic device of the present invention.
  • orientations such as “upper”, “lower”, “front”, “rear”, “left”, “right” in the present invention are based on the orientations shown in FIG. 3 and FIG. 10, and are only used to explain 3 and the relative positional relationship between the components in the posture shown in FIG. 10, if the specific posture changes, the directional indication also changes accordingly.
  • the present invention provides an elastic support piece.
  • the elastic support piece 10 includes two mounting portions 10 ′ and an elastic portion 13 connected between the two mounting portions 10 ′, and the elastic portion 13 is straight and/or curved Bending structure, one end of each mounting portion 10 ′ away from the elastic portion 13 is connected to a static or reciprocating component vibrating in the first direction; at least one mounting portion 10 ′ is provided with a first buffer portion 14 , and at least one of the first buffer portion 14 is provided with a first buffer portion 14 . Part of the structure is bent toward the first direction from one end of the mounting portion 10 ′ away from the elastic portion 13 .
  • the elastic support piece 10 of this embodiment is applied to electronic devices such as a sound-generating device, a motor or a multi-function vibration device, and this embodiment is described by taking the elastic support piece 10 applied to a sound-generating device as an example.
  • the electronic device includes an elastic support piece 10 and a vibration unit 20.
  • the elastic support piece 10 is used to balance the vibration of the vibration unit 20 along a first direction.
  • the first direction in this embodiment is the up-down direction shown in FIG. 3 and FIG.
  • the support piece 10 is used to balance the vibration of the vibration unit 20 in the up-down direction.
  • the electronic device further includes a bracket 30.
  • the vibration unit 20 includes a diaphragm and a voice coil 21 connected to the diaphragm; the two mounting portions 10' of the elastic support 10 are respectively connected to the voice coil 21 and the bracket 30 correspondingly.
  • the bracket 30 is a shell or a magnetic yoke.
  • the vibration unit 20 can vibrate in the up-down direction in the casing of the electronic device after the electrical signal is turned on, wherein the up-down direction is based on the directions shown in FIG. 3 and FIG. It is represented by a vertical direction or an up-down direction, and a direction perpendicular to the vibration of the vibration unit 20 is represented by a horizontal direction.
  • a mounting portion 10 ′ of the elastic support piece 10 is connected to the voice coil 21 .
  • the voice coil 21 includes a skeleton 211 and a voice coil wire 212 wound around the skeleton 211 . It is connected to the skeleton 211 and may also be connected to the voice coil wire 212 .
  • the other mounting portion 10' of the elastic support piece 10 is connected to the housing to realize the assembly between the voice coil 21, the elastic support piece 10 and the housing.
  • one mounting portion 10' of the elastic support piece 10 is connected to the voice coil 21, and the other mounting portion 10' is connected to the magnetic yoke.
  • the vibrating unit 20 includes a vibrating membrane and a voice coil 21 connected to the vibrating membrane.
  • the voice coil 21 is usually wound by a metal wire.
  • the vibration direction of the voice coil 21 is represented by the vertical direction or the vertical direction
  • the vibration direction perpendicular to the voice coil 21 is represented by the left-right direction or the horizontal direction; since the diaphragm and the voice coil 21 are bonded by bonding Therefore, when the voice coil 21 vibrates up and down according to the electrical signal, it will also drive the diaphragm to vibrate and generate sound waves.
  • the position of the voice coil 21 will also change during the vibration of the voice coil 21, and the magnetic field lines located on the upper side of the magnetic gap of the electronic device are arc-shaped lines. Therefore, the voice coil 21
  • the ampere force received is not only in the vertical direction, but also includes the ampere force in other directions, which causes the voice coil 21 to be easily polarized in a non-vertical direction during the vibration process, which further affects the vibration of the diaphragm.
  • the elastic support 10 connecting the voice coil 21 and the bracket 30 can be provided to center the polarization of the voice coil 21, that is, to ensure that the voice coil 21 vibrates along the vibration direction within the magnetic gap of the electronic device .
  • the elastic support piece 10 is a centering support piece or a flat spring.
  • the bracket 30 is a shell or a magnetic yoke. Since the shell can be used to carry the sounding device monomer, setting the bracket 30 as a shell can facilitate the fixing of the side of the elastic support piece 10 away from the vibration unit 20, The centering and supporting effect of the elastic support piece 10 is improved. Since most of the vibration unit 20 is close to the magnetic gap of the electronic device, and the distance between it and the magnetic yoke is relatively short, connecting the side of the elastic support piece 10 away from the vibration unit 20 to the magnetic yoke can save the elastic support piece 10 on the one hand. The distance is set, and it is convenient to improve the centering and supporting effect of the elastic support piece 10 .
  • the fixing method of the elastic support piece 10 in this embodiment includes various combinations: the two mounting parts 10 ′ of the elastic support piece 10 are respectively connected to the voice coil 21 and the shell, or the elastic support piece The two mounting parts 10 ′ of the 10 are respectively connected to the voice coil 21 and the magnetic yoke, which can better ensure the centering and supporting effect of the elastic support piece 10 .
  • the elastic support piece 10 of this embodiment includes two mounting portions 10' and an elastic portion 13 connected between the two mounting portions 10', and the elastic portion 13 is in a straight line and/or curved structure.
  • 10 It can be a bending structure such as a line, a narrow strip or a sheet formed by integral stamping of a metal sheet, or a bending structure made of a single-strand metal wire, or a double-strand metal wire. bending structure, etc.
  • the shape of the elastic portion 13 can be a polygonal spiral structure formed by bending and extending a linear structure, and specifically can be a quadrilateral, pentagon, hexagon, etc., or a circular or elliptical structure, or a straight line and a curve.
  • each bending of the elastic portion 13 is a bending line segment
  • the part of the bending line segment is a straight line
  • the other part is a curve.
  • the alternation here is not limited to one-to-one alternation, but can also be one-to-many, many-to-many alternation.
  • the arrangement of the elastic support piece 10 in this embodiment forms a horizontal constraint on the vibration unit 20 when the vibration unit 20 vibrates vertically, which can prevent the vibration unit 20 from being polarized, and the elastic support piece 10 follows the vibration unit 20 in the vertical direction. up displacement.
  • the elastic portion 13 of the elastic support piece 10 of the present embodiment extends in a straight line and/or a curve, which can reduce the stress concentration of the elastic portion 13 and increase the fatigue. Strength, reduce the risk of the elastic support piece 10 breaking, so that the elastic support piece 10 follows the vibration unit 20 in the process of vertical displacement, the elastic deformation of the elastic part 13 is large enough, even when the vibration displacement of the vibration unit 20 is large.
  • the compliance of the elastic support piece 10 is kept good, can provide sufficient displacement, does not affect the vibration of the vibration unit 20, and optimizes product performance.
  • the elastic support piece 10 in this embodiment is formed by bending and extending as a whole in a linear structure, which is simple and convenient to manufacture, simplifies the manufacturing process, has high manufacturing efficiency, and reduces the manufacturing cost.
  • the elastic support sheet 10 in this embodiment does not increase the height of the electronic device in the vertical direction, occupies less space, and is beneficial to the thinning of the product.
  • At least one mounting portion 10 ′ is provided with a first buffer portion 14 , and at least part of the structure of the first buffer portion 14 is bent in the first direction from the end of the mounting portion 10 ′ away from the elastic portion 13 . fold.
  • the first buffer portion 14 of the elastic support piece 10 can be in contact with the voice coil 21 or the pad 40 of the bracket 30 and coated with tin.
  • laser welding melts the solder paste to fix the elastic support 10 and the pad 40 to realize the assembly of the elastic support 10 and the voice coil 21 or the bracket 30 .
  • the bending direction of at least part of the structure of the first buffer part 14 is consistent with the vibration direction of the vibration unit 20 , that is, at least part of the structure of the first buffer part 14 is bent in the vertical direction, At least part of the structure of the first buffer part 14 is not affected by the vertical vibration of the vibration unit 20, so this part of the structure will not be pulled by the rotational force, has good fatigue resistance, and is less likely to form a solder joint between the elastic support 10 and the pad 40 In the case of breaking and falling off, the effectiveness of the assembly between the elastic support piece 10 and the voice coil 21 or the bracket 30 is ensured, and the reliability is high.
  • the installation portion 10' and the first buffer portion 14 are smoothly connected by transition, which can reduce stress concentration and ensure that the elastic support piece 10 will not break.
  • the first buffer portion 14 includes a first connecting section 142 and a first arc section 141, the first connecting section 142 is connected to the component that reciprocates in the first direction, and the first connecting section 142 passes through the first arc
  • the segment 141 is smoothly transitionally connected to the mounting portion 10'.
  • the first connecting segment 142 is connected to the vibration unit 20 , and specifically, may be connected to the voice coil 21 .
  • the first connecting section 142 is smoothly transitionally connected to the mounting portion 10' through the first arc-shaped section 141, and the first arc-shaped section 141 plays a buffer role between the mounting portion 10' and the first connecting section 142 to avoid stress concentration.
  • the elastic portion 13 of this embodiment is a planar structure arranged along the second direction, and the elastic portion 13 and the two mounting portions 10' are located in the same horizontal plane, and the first direction and the second direction are perpendicular to each other.
  • the second direction of this embodiment is the horizontal direction or the left-right direction as shown in FIG. 10
  • the elastic portion 13 is a horizontally arranged plane structure
  • the elastic portion 13 and the two mounting portions 10 ′ are located on the same horizontal plane, that is, the elastic portion 13 and the two mounting parts 10' are both horizontally arranged plane structures.
  • the present embodiment improves the overall flatness of the elastic support piece 10, and further reduces the edge of the electronic device.
  • the height in the vertical direction realizes the design concept of product thinning.
  • the first arc-shaped segment 141 is an arc-shaped segment with an inner concave surface facing away from the elastic portion 13 , and the first connecting segment 142 is a straight segment and is connected to the elastic portion 13 .
  • the included angle is 20° ⁇ 160°.
  • the concave surface of the first arc section 141 is disposed downward, and the first connecting section 142 is a straight section, which is convenient for connecting with the voice coil 21 or the bracket 30 .
  • the included angle between the first connecting section 142 and the horizontal plane is ⁇ . Due to the arrangement of the first arc segment 141, the angle between the first connecting segment 142 and the elastic portion 13 is 20° ⁇ 160°, which can appropriately restrain the elastic support piece 10 from being pulled by the rotational force, thereby appropriately reducing the elastic support
  • the sheet 10 is affected by the vertical vibration of the vibration unit 20 .
  • the first arc segment 141 and the first connecting segment 142 are respectively set as a circular arc segment and a straight segment, which is convenient for manufacture.
  • the first arc-shaped segment 141 is arranged in a Z shape
  • the first connecting segment 142 is a straight segment arranged at an interval from the elastic portion 13
  • the first connecting segment 142 is connected to the elastic portion 13 .
  • the first arc-shaped segment 141 includes two corners 1411 , the corner 1411 connected with the mounting portion 10 ′ is a circular arc segment with an inner concave surface away from the elastic portion 13 , and the corner 1411 connected with the first connecting segment 142 is an inner concave surface A circular arc segment disposed toward the elastic portion 13 .
  • the concave surface of the corner 1411 connected to the mounting portion 10 ′ faces downward
  • the concave surface of the corner 1411 connected to the first connecting segment 142 faces upward
  • the first connecting segment 142 The corner 1411 is a Z-shaped structure with a circular arc segment as a whole. This arrangement can restrain the elastic support piece 10 from being pulled by a rotational force to a greater extent, thereby reducing the influence of the vertical vibration of the vibration unit 20 on the elastic support piece 10 .
  • the elastic portion 13 and the first connecting section 142 are spaced up and down and arranged in parallel to each other, and the first connecting section 142 is a straight line section arranged horizontally, which is convenient for welding and fixing with the pad 40 .
  • the distance between the first connecting segment 142 and the elastic portion 13 is greater than or equal to 0.5 mm; and/or the length of the first connecting segment 142 is greater than or equal to 1.5 mm.
  • the distance between the first connecting section 142 and the elastic portion 13 is represented by D, and D ⁇ 0.5 mm, which not only ensures the compactness of the overall structure of the elastic support piece 10, but also achieves a greater degree of restraint of the elastic support piece. 10 Effectiveness of traction by rotational force.
  • the length of the first connection segment 142 is greater than or equal to 1.5 mm, the length of the first connection segment 142 is represented by L 1 , and L 1 ⁇ 1.5 mm, so that the first connection segment 142 has a sufficient length to connect with the pad 40 . Welding and fixing.
  • the first arc segment 141 is a semi-circular arc segment with an inner concave surface facing the elastic portion 13
  • the first connecting segment 142 is a straight segment
  • the first connecting segment 142 is connected to the elastic portion 13 .
  • the parts 13 are located in the same horizontal plane.
  • the inner concave surface of the semi-circular arc segment faces upwards, and the semi-circular arc segment can restrain the elastic support piece 10 from being pulled by the rotational force to a large extent, thereby reducing the vertical vibration of the elastic support piece 10 by the vibration unit 20 . influences.
  • the first connecting segment 142 is a straight segment and is located on the same horizontal plane as the elastic portion 13 , which not only facilitates manufacture, but also maximizes the compactness of the overall structure of the elastic support piece 10 .
  • the maximum distance between the first arc segment 141 and the elastic portion 13 is greater than or equal to 0.5 mm; and/or the length of the first connecting segment 142 is greater than or equal to 1.5 mm.
  • the maximum distance between the first arc-shaped segment 141 and the elastic portion 13 is represented by H, and H ⁇ 0.5 mm, which not only ensures the compactness of the overall structure of the elastic support piece 10, but also achieves a greater degree of restraint of elasticity. The effectiveness of the prop 10 being pulled by the rotational force.
  • the length of the first connection segment 142 is greater than or equal to 1.5 mm, the length of the first connection segment 142 is represented by L 1 , and L 1 ⁇ 1.5 mm, so that the first connection segment 142 has a sufficient length to connect with the pad 40 . Welding and fixing.
  • first buffer portion 14 may also be other structures bent in the up-down direction, and the shape and structure of the first buffer portion 14 are not limited by the elastic support piece 10 of the present invention.
  • the distance from the bending center line of the first arc-shaped segment 141 to its bending center is R
  • the cross-sectional width of the first arc-shaped segment 141 is B, where R ⁇ 2B, which can reduce the first buffer
  • the stress concentration at the bending portion of the portion 14 increases and the fatigue strength is increased, thereby reducing the risk of fracture of the elastic support 10 .
  • the two mounting parts 10' of the elastic support piece 10 are both provided with first buffer parts 14, the structures of the two first buffer parts 14 are the same, and the bending directions of the two first buffer parts 14 are arranged in the same direction or in opposite directions.
  • the two mounting portions 10 ′ of the elastic support piece 10 are both provided with first buffer portions 14 , the structures of the two first buffer portions 14 are the same, and the two first buffer portions 14
  • the bending directions are arranged in the same direction, that is, the two first buffer parts 14 are both bent upward or both are bent downward, one of the first buffer parts 14 can be connected to the pad 40 of the voice coil 21, and the other A buffer portion 14 can be connected to the pads 40 of the bracket 30, so that at least part of the structures of the two first buffer portions 14 are not affected by the vertical vibration of the vibration unit 20, which further improves fatigue resistance and ensures that the elastic support 10 and the sound
  • the assembly between the ring 21 and the bracket 30 is effective and reliable.
  • the first buffer portion 14 connected to the bracket 30 can also be inserted into the positioning hole 31 of the bracket 30 upwards or downwards, so as to play a role of rough positioning during the assembly process of the elastic support piece 10 and the bracket 30 .
  • the two mounting parts 10 ′ of the elastic support piece 10 are both provided with first buffer parts 14 , the structures of the two first buffer parts 14 are the same and the two first buffer parts
  • the bending directions of the 14 are arranged in opposite directions, that is, among the two first buffer parts 14 , one of the first buffer parts 14 is bent upward, and the other first buffer part 14 is bent downward.
  • one of the first buffer parts 14 can be connected to the pad 40 of the voice coil 21 , and the other first buffer part 14 can be connected to the pad 40 of the bracket 30 , so that at least part of the structures of the two first buffer parts 14 are not affected by The influence of the vertical vibration of the vibration unit 20 further improves the fatigue resistance, and ensures the effectiveness and high reliability of the assembly between the elastic support piece 10 , the voice coil 21 and the bracket 30 .
  • the first buffer portion 14 connected to the bracket 30 can also be inserted into the positioning hole 31 of the bracket 30 upwards or downwards, so as to play a role of rough positioning during the assembly process of the elastic support piece 10 and the bracket 30 .
  • the two mounting portions 10 ′ are respectively a first mounting portion 11 and a second mounting portion 12 , wherein the first mounting portion 11 is provided with a first buffer portion 14 , the second mounting portion 12 is provided with a second buffer portion 15, the second buffer portion 15 and the elastic portion 13 are located in the same horizontal plane, the second buffer portion 15 from the end of the second mounting portion 12 away from the elastic portion 13 toward or away from the elastic The portion 13 is bent.
  • the first buffer portion 14 disposed on the first mounting portion 11 is bent upward or downward, and the second buffer portion 15 is located on the same level as the elastic portion 13, that is, The second buffer portion 15 is arranged horizontally, and the second buffer portion 15 is bent toward or away from the elastic portion 13 .
  • the specific structure of the first buffer portion 14 refers to the above-mentioned embodiments. Since the elastic support piece 10 adopts all the technical solutions of the above-mentioned related embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned related embodiments. I won't repeat them one by one. As shown in FIGS.
  • the elastic portion 13 is located in the middle area between the first mounting portion 11 and the second mounting portion 12 , and the second buffer portion 15 in this embodiment is bent toward or away from the elastic portion 13 That is, the second buffer portion 15 is bent toward or away from the middle area of the elastic support piece 10, preferably, the second buffer portion 15 is bent toward the middle area of the elastic support piece 10, which not only increases the second buffer
  • the contact area between the part 15 and the pad 40 of the bracket 30 can be suppressed, and the rotational force of the elastic support 10 when the vibration unit 20 is vibrated can be suppressed, the fatigue resistance is good, and the welding between the elastic support 10 and the pad 40 of the bracket 30 is not easy to occur. In the case of point breakage and falling off, the effectiveness of the assembly between the elastic support piece 10 and the bracket 30 is ensured, and the reliability is high.
  • the second buffer portion 15 is an arc-shaped segment, one end of the second buffer portion 15 is connected to a component that is stationary or vibrates reciprocally in the first direction, and the second buffer portion 15 is The other end of the part 15 is smoothly connected with the second mounting part 12 .
  • This embodiment is described by taking the second buffer portion 15 connected to the bracket 30 as an example.
  • the second buffer portion 15 is an arc-shaped segment, one end of the arc-shaped segment is connected to the bracket 30, and the other end of the arc-shaped segment is connected to the second mounting bracket 30.
  • the parts 12 are connected by a smooth transition, which can reduce stress concentration and ensure that the elastic support 10 will not break.
  • the second buffer portion 15 is an arc segment with a central angle greater than or equal to 90°; and/or the length of the second buffer portion 15 is greater than or equal to 1.5 mm. As shown in FIG. 13 , the second buffer portion 15 can be in a 3/4 arc shape, which can greatly reduce the influence of the vertical vibration of the vibration unit 20 on the elastic support piece 10 . And the length of the second buffer portion 15 is greater than or equal to 1.5 mm, so that the second buffer portion 15 has a sufficient length to be welded and fixed with the pad 40 .
  • the second buffer portion 15 includes a second connecting segment 152 and a second arc-shaped segment 151 , and the second connecting segment 152 is connected to static or reciprocating vibration along the first direction.
  • the second connecting section 152 is connected to the second mounting portion 12 by a smooth transition through the second arc section 151 .
  • the second buffer portion 15 is connected to the bracket 30 as an example for illustration.
  • the second connection section 152 of the second buffer section 15 is connected to the bracket 30 , and the second connection section 152 is connected to the bracket 30 through the second arc section 151 .
  • the second mounting portion 12 is connected in a smooth transition, and the second arc-shaped segment 151 plays a buffer role between the second mounting portion 12 and the second connecting segment 152 to avoid stress concentration.
  • the second arc-shaped segment 151 is an arc-shaped segment with an inner concave surface facing the elastic portion 13
  • the second connecting segment 152 is a straight segment and the included angle with the extension line of the second mounting portion 12 is 15° ⁇ 160° °.
  • the inner concave surface of the second arc section 151 is disposed forward
  • the second connecting section 152 is a straight section, which is convenient for connecting with the bracket 30 .
  • the included angle between the second connecting segment 152 and the extension line of the second mounting portion 12 is 15° ⁇ 160°, which can appropriately restrain the elastic support piece 10 from being pulled by the rotational force, and further The influence of the vertical vibration of the vibration unit 20 on the elastic support piece 10 can be appropriately reduced.
  • the second arc segment 151 and the second connecting segment 152 are respectively set as a circular arc segment and a straight segment, which is convenient for manufacture.
  • the included angle between the second connection segment 152 and the extension line of the second installation portion 12 is 15° ⁇ 95°; and/or the length of the second connection segment 152 is greater than or equal to 1.5 mm.
  • the length of the second connecting section 152 is greater than or equal to 1.5mm, as shown in FIGS.
  • the length of the second connecting section 152 is represented by L 2 , and L 2 ⁇ 1.5 mm, so that the second connecting section 152 has a sufficient length , for soldering and fixing with the pad 40.
  • the distance from the bending center line of the second arc-shaped segment 151 to its bending center is R 2
  • the cross-sectional width of the second arc-shaped segment 151 is B 2 , where R 2 ⁇ 2B 2 , which can reduce the second buffer portion 15.
  • the stress concentration at the bending position increases the fatigue strength and reduces the risk of the elastic support 10 breaking.
  • the elastic portion 13 includes a first end connected to one of the two mounting portions 10 ′, and a second end connected to the other of the two mounting portions 10 ′; the elastic portion 13 is composed of The first end extends to the second end in a straight line and/or a curve along the same direction or different directions. A central area is provided between the first end and the second end.
  • the elastic support piece 10 is formed by bending and extending as a whole in a narrow and long linear structure, wherein the elastic part 13 may be in a spiral shape. The structure is formed by spirally extending clockwise from the first end to the central area to the central area, and then extending counterclockwise from the central area to the second end.
  • the elastic portion 13 can also be in a square helix-like structure, and is formed by extending from the first end to the central region along a straight line and a curve to the central region, and then extending from the central region to the second end along a curve and a straight line.
  • the elastic portion 13 can also be other structures formed by bending and extending a narrow and long linear structure.
  • the structure of the elastic portion 13 can be set according to actual use requirements.
  • the elastic support 10 of the present invention does not limit the structure of the elastic portion 13 .
  • the elastic support piece 10 of this embodiment is formed by bending and extending as a whole in a narrow and long linear structure, which can reduce the stress concentration of the elastic support piece 10 .
  • the fatigue strength is increased, the risk of breakage of the elastic support piece 10 is reduced, and the compliance of the elastic support piece 10 is maintained well without affecting the vibration of the vibration unit 20 .
  • the cross section of the line segment of the elastic support piece 10 is a closed annular structure formed by a curve and/or a straight line. It can be understood that the cross section of the line segment of the elastic support piece 10 is the cross section of the bending section of the linear structure. For example, each time the elastic portion 13 is bent once is a bending line segment, and the cross section of the bending line segment is the elastic support piece. 10's line segment cross section.
  • the cross-section of the line segment of the elastic support sheet 10 in this embodiment can be circular, oval, square, rectangular, track-shaped, or quasi-rectangular, etc.
  • the elastic support sheet 10 can be directly formed by winding a circular or square wire, or winding a wire After the production is completed, the cross section of the wire is pressed to an oval or rectangular shape by punching, so that the radial force of the elastic support piece 10 is significantly increased, and even in the case of a large displacement of the vibration unit 20 at a low frequency, good listening can still be guaranteed. Effect.
  • the present invention also provides an electronic device, the electronic device includes a bracket 30, a vibration unit 20 and the above-mentioned elastic support piece 10, the elastic support piece 10 is used to balance the vibration of the vibration unit 20 along a first direction; Diaphragm-connected voice coil 21; one of the mounting parts 10' is connected to the voice coil 21, and the other mounting part 10' is connected to the bracket 30; and/or the bracket 30 is a housing or a yoke.
  • the electronic device may be a sounding device, a motor or a multifunctional vibrating device, and the like.
  • the specific structure of the elastic support piece 10 in the electronic device refers to the above-mentioned embodiments. Since the electronic device adopts all the technical solutions of the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments. I won't repeat them one by one.
  • the number of elastic support pieces 10 is at least two, and the at least two elastic support pieces 10 are evenly spaced along the outer circumference of the voice coil 21 .
  • the number of elastic support pieces 10 is three, and the three elastic support pieces 10 are evenly spaced along the outer circumference of the vibration unit 20 to enhance the centering effect of the vibration unit 20.
  • the support piece 10 forms at least three constraints on the voice coil 21 in the horizontal direction, which can prevent the vibration unit 20 from polarizing, and the elastic support piece 10 follows the vibration unit 20 to move in the vertical direction, enhancing the Centering effect on the vibration unit 20 .
  • the number of elastic support pieces 10 may also be four, five, six or other numbers.
  • the number of the elastic support pieces 10 in the electronic device of the present invention can be flexibly adjusted according to the actual situation, and the present invention does not limit the number of the elastic support pieces 10 .
  • the electronic device may include at least one elastic group 50, and one elastic group 50 includes four elastic support pieces 10 located on the same horizontal plane.
  • the line widths or materials of the four elastic support pieces 10 may be the same or different.
  • two of the elastic supports 10 are made of phosphor bronze, and their line width can be set to 0.4mm, and the material of the other elastic support 10 is beryllium copper , then its line width can be set to 0.3mm, and there is another elastic support piece 10 made of 316 steel, so its line width can be set to 0.2mm.
  • the elastic support piece 10 of the conductor structure has the function of conducting electricity, and it can transmit electrical signals to the vibration unit 20 of the electronic device.
  • the wiring part 21 is electrically connected and matched, and the other mounting part 10 ′ is connected to an external power source, and then transmits the electrical signal between the voice coil 21 and the outside through the elastic support piece 10 ;
  • the deformation effect is used to constrain the reciprocating vibration of the vibration unit 20 according to the vibration offset state of the vibration unit 20, so that the vibration unit 20 is stabilized in a preset central area, and the polarization of the vibration unit 20 is prevented, so that the reciprocating vibration of the vibration unit 20 is prevented. Vibration is more stable. Therefore, the elastic support piece 10 has both the functions of conduction and centering, and realizes the integration of these two functions. In the electronic device, only two elastic support pieces 10 of the present invention are required to simultaneously realize the internal and external circuits. This can not only save the space in the cavity of the electronic device, but also facilitate the thinning of the product, and effectively simplify the assembly process of the electronic device.
  • the electronic device may include a plurality of elastic groups 50 , such as two or three elastic groups 50 , the plurality of elastic groups 50 are arranged at intervals along the height direction of the voice coil 21 , and all the elastic support pieces 10 of each elastic group 50 are located in the same horizontal plane.
  • the two elastic groups 50 are arranged at intervals along the vertical direction of the vibration unit 20, and each elastic group 50 group includes four elastic support pieces 10, and the four elastic support pieces 10 are located in the same position.
  • the eight elastic support pieces 10 of the two elastic groups 50 are arranged in a dislocation in the vertical direction, which not only enhances the centering effect of the vibration unit 20, but also has good symmetry and flatness of the mechanical stiffness Kms, which can satisfy the large displacement. Fatigue requirements.
  • the multiple elastic groups 50 enhance the centering effect of the vibration unit 20 on the one hand, and reduce stress concentration on the other hand, which can correspondingly reduce the line width of the elastic support piece 10 , and is easier to manufacture.
  • the number and arrangement of the elastic groups 50, as well as the shape, structure, line width, material and properties of each elastic group 50 can be flexibly set according to actual needs, with good compatibility and wide application range.
  • the present invention also provides a terminal, where the terminal includes the above-mentioned electronic device.
  • the terminal may be a computer, a mobile phone, a sound box, a car sound box applied to a car, and the like.
  • the terminal includes the above-mentioned electronic device, and the specific structure of the electronic device and its elastic support piece 10 refers to the above-mentioned embodiments. Since the terminal adopts all the technical solutions of all the above-mentioned embodiments, it has at least the advantages brought by the technical solutions of the above-mentioned embodiments. All the beneficial effects will not be repeated here.

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  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
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  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

本发明公开一种弹性支片、电子装置及终端，所述弹性支片包括两个安装部和连接在两个所述安装部之间的弹性部，所述弹性部呈直线和/或曲线弯折结构，各所述安装部远离所述弹性部的一端连接于静止或沿所述第一方向往复振动的部件上；至少一个所述安装部设置有第一缓冲部，所述第一缓冲部的至少部分结构自所述安装部远离所述弹性部的一端朝所述第一方向弯折。本发明第一缓冲部的至少部分结构的弯折方向与振动单元的振动方向一致，使得第一缓冲部的至少部分结构不受振动单元竖直振动的影响，因而该部分结构不会受到旋转力牵引，抗疲劳性好，不易出现弹性支片与焊盘的焊点断裂及脱落的情况，保证弹性支片与音圈或支架之间的装配有效性，可靠性高。

Description

弹性支片、电子装置及终端 技术领域
本发明涉及电声技术领域，特别涉及一种弹性支片、电子装置及终端。
背景技术
电子装置，比如扬声器是电子设备中的重要声学部件，其为一种把电信号转变为声信号的换能器件。当前随着技术的不断进步与革新，传统的扬声器的结构设计也在不断地求新、求变，既需要满足薄型化的发展趋势，还要越来越注重性能的优化，并兼顾工艺的简化和成本的控制。
现有的扬声器中，定心支片与音圈以及外壳或磁轭等支架装配时，定心支片上的直线部分与音圈或支架焊盘接触，涂覆锡膏，激光焊接融化锡膏将定心支片与焊盘进行固定，但这种方式在音圈振动的过程中，定心支片的部分结构会受到旋转力牵引，容易出现定心支片与焊盘的焊点断裂及脱落，造成定心支片与音圈或支架之间的装配失效，可靠性低。
发明内容
本发明的主要目的是提出一种弹性支片、电子装置及终端，旨在解决现有技术中定心支片与音圈或支架之间的装配易失效及可靠性低的问题。
为实现上述目的，本发明提出一种弹性支片，所述弹性支片包括两个安装部和连接在两个所述安装部之间的弹性部，所述弹性部呈直线和/或曲线弯折结构，各所述安装部远离所述弹性部的一端连接于静止或沿所述第一方向往复振动的部件上；
至少一个所述安装部设置有第一缓冲部，所述第一缓冲部的至少部分结构自所述安装部远离所述弹性部的一端朝所述第一方向弯折。
优选地，所述安装部与所述第一缓冲部之间平滑过渡连接。
优选地，所述第一缓冲部包括第一连接段和第一弧形段，所述第一连接段连接于沿所述第一方向往复运动的部件上，且所述第一连接段通过所述第 一弧形段与所述安装部平滑过渡连接。
优选地，所述弹性部为沿第二方向布置的平面结构，且所述弹性部与两个所述安装部位于同一水平面内，所述第一方向与所述第二方向相互垂直。
优选地，所述第一弧形段呈内凹面背离所述弹性部设置的圆弧段，所述第一连接段为直线段且与所述弹性部之间的夹角为20°～160°。
优选地，所述第一连接段与所述弹性部之间的夹角为45°～95°；且/或，所述第一连接段的长度大于或等于1.5mm。
优选地，所述第一弧形段呈Z形设置，所述第一连接段为与所述弹性部间隔设置的直线段，且所述第一连接段与所述弹性部相互平行设置。
优选地，所述第一弧形段包括两个拐角，与所述安装部连接的所述拐角呈内凹面背离所述弹性部设置的圆弧段，与所述第一连接段连接的所述拐角呈内凹面朝向所述弹性部设置的圆弧段。
优选地，所述第一连接段与所述弹性部之间的距离大于或等于0.5mm；且/或，所述第一连接段的长度大于或等于1.5mm。
优选地，所述第一弧形段呈内凹面朝向所述弹性部设置的半圆弧段，所述第一连接段为直线段，且所述第一连接段与所述弹性部位于同一水平面内。
优选地，所述第一弧形段与所述弹性部之间的最大距离大于或等于0.5mm；且/或，所述第一连接段的长度大于或等于1.5mm。
优选地，所述第一弧形段的折弯中线到其折弯中心的距离为R，所述第一弧形段的横截面宽度为B，其中，R≥2B。
优选地，两个所述安装部均设置有所述第一缓冲部，两个所述第一缓冲部的结构相同且两个所述第一缓冲部的弯折方向呈同向或反向设置。
优选地，两个所述安装部分别为第一安装部和第二安装部，其中，所述第一所述安装部设置有所述第一缓冲部，所述第二安装部设置有第二缓冲部，所述第二缓冲部与所述弹性部位于同一水平面内，所述第二缓冲部自所述第二安装部远离所述弹性部的一端朝向或背向所述弹性部弯折。
优选地，所述第二缓冲部呈弧形段，所述第二缓冲部的一端连接于静止或沿所述第一方向往复振动的部件上，且所述第二缓冲部的另一端与所述第二安装部平滑过渡连接；或者，
所述第二缓冲部包括第二连接段和第二弧形段，所述第二连接段连接于 静止或沿所述第一方向往复振动的部件上，且所述第二连接段通过所述第二弧形段与所述第二安装部平滑过渡连接。
优选地，所述弹性部包括与两个所述安装部中的其中一者连接的第一端，以及与两个所述安装部中的另一者连接的第二端；
所述弹性部由所述第一端沿同一方向或不同方向呈直线和/或曲线延伸至所述第二端形成。
优选地，所述弹性支片由线状结构绕制而成；又或者，所述弹性支片由片状结构冲压成型。
优选地，所述弹性支片的线段横截面呈曲线和/或直线形成的闭合环状结构。
本发明还提出一种电子装置，所述电子装置包括支架、振动单元和上述任一项所述弹性支片，所述弹性支片用于平衡所述振动单元沿所述第一方向振动；所述振动单元包括振膜和与所述振膜连接的音圈；两个所述安装部分别与所述音圈及所述支架对应连接；
且/或，所述支架为外壳或者磁轭。
本发明还提出一种终端，所述终端包括如上所述的电子装置。
本发明的技术方案中，在弹性支片与音圈以及外壳或磁轭等支架装配时，弹性支片的第一缓冲部可与音圈或支架焊盘接触，涂覆锡膏，激光焊接融化锡膏将弹性支片与焊盘进行固定，实现弹性支片与音圈或支架的装配。而本发明弹性支片中，第一缓冲部的至少部分结构的弯折方向与振动单元的振动方向一致，使得第一缓冲部的至少部分结构不受振动单元竖直振动的影响，因而该部分结构不会受到旋转力牵引，抗疲劳性好，不易出现弹性支片与焊盘的焊点断裂及脱落的情况，保证弹性支片与音圈或支架之间的装配有效性，可靠性高。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图示出的结构获得其他的 附图。
图1为本发明一实施例电子装置的立体示意图；
图2为本发明一实施例弹性支片和音圈的立体示意图；
图3为本发明一实施例弹性支片和音圈的主视示意图；
图4中(a)为本发明一实施例弹性支片的主视示意图，(b)为本发明一实施例弹性支片的俯视示意图；
图5中(c)为本发明另一实施例弹性支片的主视示意图，(d)为本发明另一实施例弹性支片的立体示意图；
图6中(e)为本发明又一实施例弹性支片的主视示意图，(f)为本发明又一实施例弹性支片的立体示意图；
图7中(g)为本发明再一实施例弹性支片的主视示意图，(h)为本发明又一实施例弹性支片的立体示意图；
图8中(i)为本发明一实施例弹性支片的立体示意图，(j)为本发明一实施例弹性支片与支架的立体装配示意图；
图9中(k)为本发明另一实施例弹性支片的立体示意图，(m)为本发明另一实施例弹性支片与支架的立体装配示意图；
图10为本发明又一实施例弹性支片的立体示意图；
图11为本发明基于图10的一实施例弹性支片的俯视示意图；
图12为本发明基于图10的另一实施例弹性支片的俯视示意图；
图13为本发明基于图10的又一实施例弹性支片的俯视示意图；
图14为本发明电子装置的俯视示意图。
附图标号说明：
标号 名称 标号 名称
10 弹性支片 151 第二弧形段
10’ 安装部 152 第二连接段
11 第一安装部 20 振动单元
12 第二安装部 21 音圈
13 弹性部 211 骨架
14 第一缓冲部 212 音圈线
141 第一弧形段 30 支架
1411 拐角 31 定位孔
142 第一连接段 40 焊盘
15 第二缓冲部 50 弹性群
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
需要说明，若本发明实施例中有涉及方向性指示(诸如上、下、左、右、前、后……)，则该方向性指示仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，若本发明实施例中有涉及“第一”、“第二”等的描述，则该“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本发明要求的保护范围之内。
本发明中对“上”、“下”、“前”、“后”、“左”、“右”等方位的描述以图3和图10所示的方位为基准，仅用于解释在图3和图10所示姿态下各部件之间的相对位置关系，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
本发明提出一种弹性支片。
如图1至图14所示，本实施例中，弹性支片10包括两个安装部10’和连 接在两个安装部10’之间的弹性部13，弹性部13呈直线和/或曲线弯折结构，各安装部10’远离弹性部13的一端连接于静止或沿第一方向往复振动的部件上；至少一个安装部10’设置有第一缓冲部14，第一缓冲部14的至少部分结构自安装部10’远离弹性部13的一端朝第一方向弯折。
本实施例的弹性支片10应用于发声装置、马达或多功能振动装置等电子装置中，本实施例以弹性支片10应用于发声装置为例进行说明。电子装置包括弹性支片10和振动单元20，弹性支片10用于平衡振动单元20沿第一方向振动，本实施例的第一方向为图3和图10所示的上下方向，即，弹性支片10用于平衡振动单元20沿上下方向振动。电子装置还包括支架30，在一实施例中，振动单元20包括振膜和与振膜连接的音圈21；弹性支片10的两个安装部10’分别与音圈21和支架30对应连接，且/或，支架30为外壳或者磁轭。
可以理解地，振动单元20在接通电信号后，可在电子装置的外壳内发生上下方向的振动，其中，上下方向以图3和图10所示的方向为准，振动单元20的振动方向用竖直方向或上下方向表示，垂直于振动单元20振动的方向用水平方向表示。在一实施例中，弹性支片10的一个安装部10’与音圈21连接，具体地，音圈21包括骨架211和绕设于骨架211外的音圈线212，该安装部10’可与骨架211连接，也可与音圈线212连接。弹性支片10的另一个安装部10’与外壳连接，实现音圈21、弹性支片10及外壳之间的装配。在另一实施例中，弹性支片10的一个安装部10’与音圈21连接，另一个安装部10’与磁轭连接。
该电子装置中，振动单元20包括振膜和与振膜连接的音圈21，音圈21通常是由金属线缠绕而成的，当音圈21接通电信号之后，在电子装置的磁场中受安培力的作用上下振动，音圈21的振动方向用竖直方向或上下方向表示，垂直于音圈21振动的方向用左右方向或水平方向表示；由于振膜与音圈21是通过粘结等方式固定结合为一体的，因此，音圈21根据电信号上下振动时也会带动振膜振动，产生声波。
由于电子装置的磁场只是相对均匀的并不是绝对的，音圈21振动过程中音圈21的位置也会变化，且位于电子装置的磁间隙上侧的磁力线为弧形线，因此，音圈21受到的安培力并不仅仅是竖直方向的，也包含其他方向的安培力，这就造成音圈21在振动过程中容易发生非竖直方向的偏振，进一步会影 响振膜的振动。
为了防止发生上述情况的偏振，设置连接音圈21和支架30的弹性支片10可以对音圈21的偏振进行定心支撑，即，保证音圈21在电子装置的磁间隙内沿振动方向振动。在一实施例中，弹性支片10为定心支片或者平面弹簧。
在一实施例中，支架30为外壳或者磁轭，由于外壳可以用于对发声装置单体进行承载，将支架30设置为外壳，可以便于弹性支片10背离振动单元20的一侧进行固定，提高弹性支片10的定心支撑效果。由于振动单元20的大部分都靠近电子装置的磁间隙，其与磁轭的距离较近，将弹性支片10背离振动单元20的一侧连接至磁轭，一方面可以节省弹性支片10的设置距离，并且便于提高弹性支片10的定心支撑效果。需要说明的是，如上所述，本实施例中的弹性支片10固定方式包括多种的组合：弹性支片10的两个安装部10’分别连接音圈21和外壳、或者，弹性支片10的两个安装部10’分别连接音圈21和磁轭，均能较好的保证弹性支片10的定心支撑效果。
本实施例的弹性支片10包括两个安装部10’和连接在两个安装部10’之间的弹性部13，弹性部13呈直线和/或曲线弯折结构，具体地，弹性支片10可以是金属板材一体冲压成型的线状、窄条状或片状等弯折结构，也可以采用单股金属线绕制而成的弯折结构，还可以是双股金属线绕制而成的弯折结构等。弹性部13的形状可以呈线状结构弯折延伸形成的多边形的螺旋状结构，具体可以为四边形、五边形、六边形等，或者为圆形、椭圆形的结构，或者为直线与曲线形状结合的结构，例如，弹性部13中每弯折一次为一个弯折线段，弯折线段的部分为直线，另一部分为曲线，其具体可以为曲线与直线交替连接的形状，需要说明的是，此处的交替并不限于一一交替，还可以是一与多、多与多的交替。
本实施例弹性支片10的设置，在振动单元20竖直振动时对振动单元20形成水平方向上的约束，可遏制振动单元20发生偏振，且弹性支片10跟随振动单元20在竖直方向上位移。相较于现有片形弹波状的定心支片而言，本实施例的弹性支片10中弹性部13呈直线和/或曲线延伸，可减小弹性部13的应力集中，增加了疲劳强度，降低弹性支片10断裂的风险，使得弹性支片10跟随振动单元20在竖直方向位移的过程中，弹性部13发生弹性形变足够大，即使在振动单元20振动位移较大的情况下，弹性支片10的顺性保持良好， 可提供足够的位移，不影响振动单元20的振动，优化产品性能。并且，本实施例弹性支片10整体呈线状结构弯折延伸形成，制作简单方便，简化了制作工艺，制作效率高，降低了制作成本。并且，本实施例弹性支片10不会使电子装置沿竖直方向上高度增加，占用空间小，利于产品的薄型化。
另外，本实施例弹性支片10中，至少一个安装部10’设置有第一缓冲部14，第一缓冲部14的至少部分结构自安装部10’远离弹性部13的一端朝第一方向弯折。可以理解地，在弹性支片10与音圈21以及外壳或磁轭等支架30装配时，弹性支片10的第一缓冲部14可与音圈21或支架30焊盘40接触，涂覆锡膏，激光焊接融化锡膏将弹性支片10与焊盘40进行固定，实现弹性支片10与音圈21或支架30的装配。而本实施例弹性支片10中，第一缓冲部14的至少部分结构的弯折方向与振动单元20的振动方向一致，即，第一缓冲部14的至少部分结构沿竖直方向弯折，使得第一缓冲部14的至少部分结构不受振动单元20竖直振动的影响，因而该部分结构不会受到旋转力牵引，抗疲劳性好，不易出现弹性支片10与焊盘40的焊点断裂及脱落的情况，保证弹性支片10与音圈21或支架30之间的装配有效性，可靠性高。
本实施例弹性支片10中，安装部10’与第一缓冲部14之间平滑过渡连接，可较少应力集中情况，保证弹性支片10不会发生断裂情况。进一步地，第一缓冲部14包括第一连接段142和第一弧形段141，第一连接段142连接于沿第一方向往复运动的部件上，且第一连接段142通过第一弧形段141与安装部10’平滑过渡连接。具体地，第一连接段142连接在振动单元20上，具体可连接在音圈21上。第一连接段142通过第一弧形段141与安装部10’平滑过渡连接，第一弧形段141在安装部10’和第一连接段142之间起到缓冲作用，避免应力集中。
本实施例的弹性部13为沿第二方向布置的平面结构，且弹性部13与两个安装部10’位于同一水平面内，第一方向与第二方向相互垂直。本实施例的第二方向为如图10所示的水平方向或左右方向，弹性部13呈水平布置的平面结构，且弹性部13与两个安装部10’位于同一水平面上，即，弹性部13和两个安装部10’均呈水平布置的平面结构，相较于现有片形弹波状的定心支片，本实施例提高了弹性支片10的整体平面度，进一步降低电子装置沿竖直方向的高度，实现产品薄型化的设计理念。
如图4和图5所示，在一实施例中，第一弧形段141呈内凹面背离弹性部13设置的圆弧段，第一连接段142为直线段且与弹性部13之间的夹角为20°～160°。如图4和图5所示，第一弧形段141的内凹面朝下设置，第一连接段142为直线段，方便与音圈21或支架30连接。并且，第一连接段142与弹性部13之间的夹角为α，α＝20°～160°，由于弹性部13水平设置，因而第一连接段142与水平面之间的夹角为α。由于第一弧形段141的设置，使得第一连接段142与弹性部13之间的夹角为20°～160°，可适当抑制弹性支片10受旋转力牵引，进而可适当减少弹性支片10受振动单元20竖直振动的影响。并且，将第一弧形段141及第一连接段142分别设置为圆弧段和直线段，方便制作。
进一步地，第一连接段142与弹性部13之间的夹角为45°～95°；且/或，第一连接段142的长度大于或等于1.5mm。将第一连接段142和弹性部13之间的夹角设置为45°～95°，即，α＝45°～95°，可较大程度的减少弹性支片10受振动单元20竖直振动的影响，提高可靠性。第一连接段142的长度大于或等于1.5mm，如图4和图5所示，第一连接段142的长度用L 1表示，L 1≥1.5mm，使得第一连接段142具有足够的长度，以便与焊盘40进行焊接和固定。如图4所示，在一实施例中，第一连接段142与弹性部13之间的夹角为α＝90°，如图5所示，在另一实施例中，第一连接段142与弹性部13之间的夹角α＝45°。
如图6所示，在又一实施例中，第一弧形段141呈Z形设置，第一连接段142为与弹性部13间隔设置的直线段，且第一连接段142与弹性部13相互平行设置。进一步地，第一弧形段141包括两个拐角1411，与安装部10’连接的拐角1411呈内凹面背离弹性部13设置的圆弧段，与第一连接段142连接的拐角1411呈内凹面朝向弹性部13设置的圆弧段。如图6所示，第一弧形段141中，与安装部10’连接的拐角1411的内凹面朝下，与第一连接段142连接的拐角1411的内凹面朝上，第一连接段142整体呈拐角1411处为圆弧段的Z形结构，如此设置，可较大程度的抑制弹性支片10受旋转力牵引，进而可较少弹性支片10受振动单元20竖直振动的影响。另外，弹性部13与第一连接段142上下间隔且相互平行设置，第一连接段142呈水平设置的直线段，方便与焊盘40进行焊接和固定。
更进一步地，第一连接段142与弹性部13之间的距离大于或等于0.5mm； 且/或，第一连接段142的长度大于或等于1.5mm。如图6所示，第一连接段142与弹性部13之间的距离用D表示，D≥0.5mm，即保证弹性支片10整体结构的紧凑性，又能实现较大程度抑制弹性支片10受旋转力牵引的有效性。另外，第一连接段142的长度大于或等于1.5mm，第一连接段142的长度用L 1表示，L 1≥1.5mm，使得第一连接段142具有足够的长度，以便与焊盘40进行焊接和固定。
如图7所示，在再一实施例中，第一弧形段141呈内凹面朝向弹性部13设置的半圆弧段，第一连接段142为直线段，且第一连接段142与弹性部13位于同一水平面内。如图7所示，半圆弧段的内凹面朝上，半圆弧段可较大程度的抑制弹性支片10受旋转力牵引，进而可减少弹性支片10受振动单元20竖直振动的影响。并且，第一连接段142为直线段且与弹性部13位于同一水平面，不仅方便制作，而且最大程度的提高弹性支片10整体结构的紧凑性。
进一步地，第一弧形段141与弹性部13之间的最大距离大于或等于0.5mm；且/或，第一连接段142的长度大于或等于1.5mm。如图7所示，第一弧形段141与弹性部13之间的最大距离用H表示，H≥0.5mm，即保证弹性支片10整体结构的紧凑性，又能实现较大程度抑制弹性支片10受旋转力牵引的有效性。另外，第一连接段142的长度大于或等于1.5mm，第一连接段142的长度用L 1表示，L 1≥1.5mm，使得第一连接段142具有足够的长度，以便与焊盘40进行焊接和固定。
需要说明的是，在其他实施例中，第一缓冲部14还可以是其他呈上下方向弯折的结构，本发明弹性支片10对第一缓冲部14的形状和结构不作限定。
本实施例中，第一弧形段141的折弯中线到其折弯中心的距离为R，第一弧形段141的横截面宽度为B，其中，R≥2B，可减小第一缓冲部14折弯处的应力集中及增加疲劳强度，降低弹性支片10断裂的风险。
弹性支片10的两个安装部10’均设置有第一缓冲部14，两个第一缓冲部14的结构相同且两个第一缓冲部14的弯折方向呈同向或反向设置。
如图8所示，在一实施例中，弹性支片10的两个安装部10’均设置有第一缓冲部14，两个第一缓冲部14的结构相同且两个第一缓冲部14的弯折方向呈同向设置，即，两个第一缓冲部14均朝上弯折或均朝下弯折，其中一个第一缓冲部14可与音圈21焊盘40连接，另一个第一缓冲部14可与支架30 焊盘40连接，使得两个第一缓冲部14的至少部分结构均不受振动单元20竖直振动的影响，进一步提高抗疲劳性，保证弹性支片10与音圈21及支架30之间的装配有效性，可靠性高。并且，与支架30连接的第一缓冲部14还可朝上或朝下插入支架30的定位孔31中，在弹性支片10与支架30装配的过程中起到粗定位的作用。
如图9所示，在另一实施例中，弹性支片10的两个安装部10’均设置有第一缓冲部14，两个第一缓冲部14的结构相同且两个第一缓冲部14的弯折方向呈反向设置，即，两个第一缓冲部14中，其中一个第一缓冲部14朝上弯折，另一个第一缓冲部14朝下弯折。并且，其中一个第一缓冲部14可与音圈21焊盘40连接，另一个第一缓冲部14可与支架30焊盘40连接，使得两个第一缓冲部14的至少部分结构均不受振动单元20竖直振动的影响，进一步提高抗疲劳性，保证弹性支片10与音圈21及支架30之间的装配有效性，可靠性高。并且，与支架30连接的第一缓冲部14还可朝上或朝下插入支架30的定位孔31中，在弹性支片10与支架30装配的过程中起到粗定位的作用。
可以理解地，弹性支片10的两个第一缓冲部14的弯折方向呈同向设置还是呈反向设置，是可以根据实际情况实际选择的，用户可根据实际情况的不同来灵活选择不同类型的弹性支片10，提高使用方便性。
如图10至图13所示，在又一实施例中，两个安装部10’分别为第一安装部11和第二安装部12，其中，第一安装部11设置有第一缓冲部14，第二安装部12设置有第二缓冲部15，第二缓冲部15与弹性部13位于同一水平面内，第二缓冲部15自第二安装部12远离弹性部13的一端朝向或背向弹性部13弯折。在该实施例的弹性支片10中，设置于第一安装部11上的第一缓冲部14朝上或朝下弯折，而第二缓冲部15则与弹性部13位于同一水平面，即，第二缓冲部15水平设置，且第二缓冲部15朝向或背向弹性部13弯折。
第一缓冲部14的具体结构参照上述实施例，由于该弹性支片10采用了上述相关实施例的全部技术方案，因此至少具有上述相关实施例的技术方案所带来的所有有益效果，在此不再一一赘述。如图10至图13所示，弹性部13位于第一安装部11和第二安装部12之间的中间区域，该实施例的第二缓冲部15是朝向或背向弹性部13弯折的，即，第二缓冲部15是朝向或背向弹性支片10的中间区域折弯的，优选地，第二缓冲部15是朝向弹性支片10的 中间区域弯折的，不仅增加第二缓冲部15与支架30焊盘40的接触面积，而且可抑制弹性支片10在振动单元20振动时所受的旋转力，抗疲劳性好，不易出现弹性支片10与支架30焊盘40的焊点断裂及脱落的情况，保证弹性支片10与支架30之间的装配有效性，可靠性高。
具体地，如图13所示，在一实施例中，第二缓冲部15呈弧形段，第二缓冲部15的一端连接于静止或沿第一方向往复振动的部件上，且第二缓冲部15的另一端与第二安装部12平滑过渡连接。该实施例以第二缓冲部15连接在支架30上为例进行说明，第二缓冲部15呈弧形段，弧形段的一端连接于支架30上，弧形段的另一端与第二安装部12平滑过渡连接，可较少应力集中情况，保证弹性支片10不会发生断裂情况。
进一步地，第二缓冲部15呈圆心角大于或等于90°的圆弧段；且/或，第二缓冲部15的长度大于或等于1.5mm。如图13所示，第二缓冲部15可呈3/4的圆弧状，可较大程度的减少弹性支片10受振动单元20竖直振动的影响。且第二缓冲部15的长度大于或等于1.5mm，使得第二缓冲部15具有足够的长度，以便与焊盘40进行焊接和固定。
如图11和图12所示，在另一实施例中，第二缓冲部15包括第二连接段152和第二弧形段151，第二连接段152连接于静止或沿第一方向往复振动的部件上，且第二连接段152通过第二弧形段151与第二安装部12平滑过渡连接。该实施例以第二缓冲部15连接在支架30上为例进行说明，第二缓冲部15的第二连接段152连接于支架30上，且第二连接段152通过第二弧形段151与第二安装部12平滑过渡连接，第二弧形段151在第二安装部12和第二连接段152之间起到缓冲作用，避免应力集中。
进一步地，第二弧形段151呈内凹面朝向弹性部13设置的圆弧段，第二连接段152为直线段且与第二安装部12的延长线之间的夹角为15°～160°。如图11和图12所示，第二弧形段151的内凹面朝前设置，第二连接段152为直线段，方便与支架30连接。并且，第二连接段152与弹性部13之间的夹角为β，β＝15°～160°。由于第二弧形段151的设置，使得第二连接段152与第二安装部12的延长线之间的夹角为15°～160°，可适当抑制弹性支片10受旋转力牵引，进而可适当减少弹性支片10受振动单元20竖直振动的影响。并且，将第二弧形段151及第二连接段152分别设置为圆弧段和直线段，方便 制作。
更进一步地，第二连接段152与第二安装部12的延长线之间的夹角为15°～95°；且/或，第二连接段152的长度大于或等于1.5mm。将第二连接段152和第二安装部12的延长线之间的夹角设置为15°～95°，即，β＝45°～95°，可较大程度的减少弹性支片10受振动单元20竖直振动的影响，提高可靠性。第二连接段152的长度大于或等于1.5mm，如图11和图12所示，第二连接段152的长度用L 2表示，L 2≥1.5mm，使得第二连接段152具有足够的长度，以便与焊盘40进行焊接和固定。如图11所示，在一实施例中，第一连接段142与弹性部13之间的夹角为β＝21°，如图12所示，在另一实施例中，第一连接段142与弹性部13之间的夹角β＝90°。
第二弧形段151的折弯中线到其折弯中心的距离为R 2，第二弧形段151的横截面宽度为B 2，其中，R 2≥2B 2，可减小第二缓冲部15折弯处的应力集中及增加疲劳强度，降低弹性支片10断裂的风险。
本实施例中，弹性部13包括与两个安装部10’中的其中一者连接的第一端，以及与两个安装部10’中的另一者连接的第二端；弹性部13由第一端沿同一方向或不同方向呈直线和/或曲线延伸至第二端形成。第一端和第二端之间设有中心区域，如图1至图14所示，弹性支片10整体呈窄长形的线状结构弯折延伸形成，其中，弹性部13可以呈螺旋形结构，通过其第一端向中心区域沿顺时针螺旋延伸至中心区域，再由中心区域沿逆时针延伸至第二端形成。弹性部13也可以呈方形的类螺旋结构，通过其第一端向中心区域分别沿直线和曲线延伸至中心区域，再由中心区域分别沿曲线和直线延伸至第二端形成。弹性部13还可以是由窄长形的线状结构弯折延伸形成的其他结构，弹性部13的结构状可根据实际使用需求设置，本发明弹性支片10对弹性部13的结构不作限制。相较于现有片形弹波状的定心支片而言，本实施例的弹性支片10整体呈窄长形的线状结构弯折延伸形成，可减小弹性支片10的应力集中，增加了疲劳强度，降低弹性支片10断裂的风险，且弹性支片10的顺性保持良好，不影响振动单元20的振动。
本实施例中，弹性支片10的线段横截面呈曲线和/或直线形成的闭合环状结构。可以理解地，弹性支片10的线段横截面为线状结构折弯段的横截面，比如，弹性部13中每弯折一次为一个弯折线段，弯折线段的横截面即为弹性 支片10的线段横截面。本实施例弹性支片10的线段横截面可以为圆形、椭圆形、方形、长方形、跑道形或类矩形等，弹性支片10可直接通过圆形或方形线材绕制形成，或者在线材绕制完成后，通过冲压将线材的横截面压至椭圆形或长方形等，使得弹性支片10的径向力明显增加，即使在振动单元20低频大位移的情况下，仍可保证良好的听音效果。
本发明还提出一种电子装置，电子装置包括支架30、振动单元20和上述弹性支片10，弹性支片10用于平衡振动单元20沿第一方向振动；振动单元20包括振膜和与振膜连接的音圈21；其中一个安装部10’与音圈21连接，另一个安装部10’与支架30连接；且/或，支架30为外壳或者磁轭。该电子装置可以是发声装置、马达或多功能振动装置等。该电子装置中弹性支片10的具体结构参照上述实施例，由于本电子装置采用了上述所有实施例的全部技术方案，因此至少具有上述实施例的技术方案所带来的所有有益效果，在此不再一一赘述。
如图1至图3以及图14所示，本实施例电子装置中，弹性支片10的数量至少为两个，至少两个弹性支片10沿音圈21的外周间隔均匀设置。在一实施例中，弹性支片10的数量为三个，三个弹性支片10沿振动单元20的外周间隔均匀设置，增强了对振动单元20的定心效果，具体地，至少三个弹性支片10在振动单元20竖直振动时对音圈21形成水平方向上的至少三处约束，可遏制振动单元20发生偏振，且弹性支片10跟随振动单元20在竖直方向上位移，增强对振动单元20的定心效果。在其他实施例中，弹性支片10的数量也可以为四个、五个、六个或其他数量。本发明电子装置中弹性支片10的数量可根据实际情况灵活调整，本发明对弹性支片10的数量不作限制。
电子装置可包括至少一个弹性群50，一个弹性群50包括四个位于同一水平面的弹性支片10。同一个弹性群50中，四个弹性支片10的线宽或材质可以相同，也可以不同。比如，由于材质属性的不同，四个弹性支片10中，其中两个弹性支片10的材质为磷青铜，则其线宽可以设置为0.4mm，另一个弹性支片10的材质为铍铜，则其线宽可以设置为0.3mm，还有一个弹性支片10的材质为316钢，则其线宽可以设置为0.2mm。
另外，同一个弹性群50的四个弹性支片10中，其中两个弹性支片10为导电体结构，其余弹性支片10为非导电体结构。导电体结构的弹性支片10 中，具备导电的功能，其能够向电子装置的振动单元20传输电信号，具体地，该弹性支片10通过其中一个安装部10’与振动单元20中音圈21的接线部电连接配合，另一个安装部10’与外部电源连接，进而通过弹性支片10传输音圈21与外部的电信号；此外，该弹性支片10还通过其弹性部13的弹性形变作用来根据振动单元20的振动偏移状态对振动单元20的往复振动进行约束，使所述振动单元20稳定在预设的中心区域，防止了振动单元20的偏振，使得振动单元20的往复振动更加稳定。因此，该弹性支片10兼具了导电及定心的作用，实现了这两种功能的集成，在电子装置中只需设置两个本发明的弹性支片10即可同时实现对内外部电路的导通作用及对振动单元20振动的定心作用，这样不仅能够节省电子装置腔体内的空间，进一步利于产品的薄型化，并且有效地简化了电子装置的装配工艺。
电子装置可包括多个弹性群50，比如两个或三个弹性群50，多个弹性群50沿音圈21的高度方向间隔布置，各弹性群50的所有弹性支片10位于同一水平面内。以两个弹性群50为例进行说明，两个弹性群50沿振动单元20的竖直方向间隔布置，各弹性群50组包括四个弹性支片10，并且该四个弹性支片10位于同一水平面内，两个弹性群50的八个弹性支片10在竖直方向呈错位排布，不仅增强对振动单元20的定心效果，而且力学劲度Kms对称性及平坦性好，满足大位移疲劳要求。多个弹性群50相较于一个弹性群50来说，一方面增强对振动单元20的定心效果，另一方面减少应力集中，可相应减小弹性支片10的线宽，更易制作。
本发明电子装置中，弹性群50的数量及排布方式，以及各弹性群50的形状、结构、线宽、材质及属性等可根据实际需要灵活设置，兼容性好，应用范围广。
本发明还提出一种终端，终端包括上述的电子装置。该终端可以是电脑、手机、音箱以及应用在汽车上的车载音箱等。该终端包括上述电子装置，电子装置及其弹性支片10的具体结构参照上述实施例，由于本终端采用了上述所有实施例的全部技术方案，因此至少具有上述实施例的技术方案所带来的所有有益效果，在此不再一一赘述。
以上仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是在本发明的发明构思下，利用本发明说明书及附图内容所作的等效结构变换， 或直接/间接运用在其他相关的技术领域均包括在本发明的专利保护范围内。

Claims (20)

  1. 一种弹性支片，其特征在于，所述弹性支片包括两个安装部和连接在两个所述安装部之间的弹性部，所述弹性部呈直线和/或曲线弯折结构，各所述安装部远离所述弹性部的一端连接于静止或沿所述第一方向往复振动的部件上；
    至少一个所述安装部设置有第一缓冲部，所述第一缓冲部的至少部分结构自所述安装部远离所述弹性部的一端朝所述第一方向弯折。
  2. 如权利要求1所述的弹性支片，其特征在于，所述安装部与所述第一缓冲部之间平滑过渡连接。
  3. 如权利要求2所述的弹性支片，其特征在于，所述第一缓冲部包括第一连接段和第一弧形段，所述第一连接段连接于沿所述第一方向往复运动的部件上，且所述第一连接段通过所述第一弧形段与所述安装部平滑过渡连接。
  4. 如权利要求3所述的弹性支片，其特征在于，所述弹性部为沿第二方向布置的平面结构，且所述弹性部与两个所述安装部位于同一水平面内，所述第一方向与所述第二方向相互垂直。
  5. 如权利要求4所述的弹性支片，其特征在于，所述第一弧形段呈内凹面背离所述弹性部设置的圆弧段，所述第一连接段为直线段且与所述弹性部之间的夹角为20°～160°。
  6. 如权利要求5所述的弹性支片，其特征在于，所述第一连接段与所述弹性部之间的夹角为45°～95°；且/或，所述第一连接段的长度大于或等于1.5mm。
  7. 如权利要求4所述的弹性支片，其特征在于，所述第一弧形段呈Z形设置，所述第一连接段为与所述弹性部间隔设置的直线段，且所述第一连接 段与所述弹性部相互平行设置。
  8. 如权利要求7所述的弹性支片，其特征在于，所述第一弧形段包括两个拐角，与所述安装部连接的所述拐角呈内凹面背离所述弹性部设置的圆弧段，与所述第一连接段连接的所述拐角呈内凹面朝向所述弹性部设置的圆弧段。
  9. 如权利要求7所述的弹性支片，其特征在于，所述第一连接段与所述弹性部之间的距离大于或等于0.5mm；且/或，所述第一连接段的长度大于或等于1.5mm。
  10. 如权利要求4所述的弹性支片，其特征在于，所述第一弧形段呈内凹面朝向所述弹性部设置的半圆弧段，所述第一连接段为直线段，且所述第一连接段与所述弹性部位于同一水平面内。
  11. 如权利要求10所述的弹性支片，其特征在于，所述第一弧形段与所述弹性部之间的最大距离大于或等于0.5mm；且/或，所述第一连接段的长度大于或等于1.5mm。
  12. 如权利要求3-11中任一项所述的弹性支片，其特征在于，所述第一弧形段的折弯中线到其折弯中心的距离为R，所述第一弧形段的横截面宽度为B，其中，R≥2B。
  13. 如权利要求1-11中任一项所述的弹性支片，其特征在于，两个所述安装部均设置有所述第一缓冲部，两个所述第一缓冲部的结构相同且两个所述第一缓冲部的弯折方向呈同向或反向设置。
  14. 如权利要求4-11中任一项所述的弹性支片，其特征在于，两个所述安装部分别为第一安装部和第二安装部，其中，所述第一所述安装部设置有所述第一缓冲部，所述第二安装部设置有第二缓冲部，所述第二缓冲部与所 述弹性部位于同一水平面内，所述第二缓冲部自所述第二安装部远离所述弹性部的一端朝向或背向所述弹性部弯折。
  15. 如权利要求14所述的弹性支片，其特征在于，所述第二缓冲部呈弧形段，所述第二缓冲部的一端连接于静止或沿所述第一方向往复振动的部件上，且所述第二缓冲部的另一端与所述第二安装部平滑过渡连接；或者，
    所述第二缓冲部包括第二连接段和第二弧形段，所述第二连接段连接于静止或沿所述第一方向往复振动的部件上，且所述第二连接段通过所述第二弧形段与所述第二安装部平滑过渡连接。
  16. 如权利要求1-11中任一项所述的弹性支片，其特征在于，所述弹性部包括与两个所述安装部中的其中一者连接的第一端，以及与两个所述安装部中的另一者连接的第二端；
    所述弹性部由所述第一端沿同一方向或不同方向呈直线和/或曲线延伸至所述第二端形成。
  17. 如权利要求16所述的弹性支片，其特征在于，所述弹性支片由线状结构绕制而成；又或者，所述弹性支片由片状结构冲压成型。
  18. 如权利要求16所述的弹性支片，其特征在于，所述弹性支片的线段横截面呈曲线和/或直线形成的闭合环状结构。
  19. 一种电子装置，其特征在于，所述电子装置包括支架、振动单元和权利要求1-18中任一项所述弹性支片，所述弹性支片用于平衡所述振动单元沿所述第一方向振动；所述振动单元包括振膜和与所述振膜连接的音圈；两个所述安装部分别与所述音圈及所述支架对应连接；
    且/或，所述支架为外壳或者磁轭。
  20. 一种终端，其特征在于，所述终端包括如权利要求19所述的电子装置。
PCT/CN2021/114301 2021-01-29 2021-08-24 弹性支片、电子装置及终端 Ceased WO2022160684A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024199171A1 (zh) * 2023-03-31 2024-10-03 歌尔股份有限公司 发声装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112969132B (zh) 2021-01-29 2023-01-24 歌尔股份有限公司 弹性支片、电子装置及终端
CN114268862B (zh) * 2021-12-28 2024-08-30 歌尔股份有限公司 发声单体及终端
CN115942207B (zh) * 2022-12-30 2026-02-13 歌尔股份有限公司 弹片及应用装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007208877A (ja) * 2006-02-06 2007-08-16 Matsushita Electric Ind Co Ltd スピーカ
US20110135139A1 (en) * 2009-12-07 2011-06-09 Alpine Electronics, Inc. Speaker device
CN207070321U (zh) * 2017-06-30 2018-03-02 歌尔科技有限公司 扬声器单体及电子设备
CN107968979A (zh) * 2017-12-27 2018-04-27 Tcl通力电子（惠州）有限公司 发声器件
CN111131982A (zh) * 2020-03-27 2020-05-08 共达电声股份有限公司 一种定心支片及具有该定心支片的扬声器
CN211930861U (zh) * 2020-05-25 2020-11-13 歌尔股份有限公司 弹性部件及应用装置
CN212086477U (zh) * 2020-05-25 2020-12-04 歌尔股份有限公司 应用装置
CN112969132A (zh) * 2021-01-29 2021-06-15 歌尔股份有限公司 弹性支片、电子装置及终端

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1662838B1 (en) * 2003-08-19 2008-05-07 Matsushita Electric Industrial Co., Ltd. Loudspeaker
JPWO2010050068A1 (ja) * 2008-10-31 2012-03-29 パイオニア株式会社 スピーカ装置及び自動車
CN203289635U (zh) * 2013-05-10 2013-11-13 瑞声声学科技(深圳)有限公司 弹簧板及应用该弹簧板的多功能发声器
CN106888421A (zh) * 2017-03-20 2017-06-23 歌尔股份有限公司 一种发声单元中的振动系统以及发声单元
CN110351639B (zh) * 2019-06-26 2021-12-24 瑞声科技(新加坡)有限公司 一种扬声器
CN111405431B (zh) * 2019-12-27 2021-07-09 瑞声科技(新加坡)有限公司 发声器件及其扬声器箱
CN113727250B (zh) * 2020-05-25 2025-05-06 歌尔股份有限公司 发声装置及电子设备
CN212115661U (zh) * 2020-05-25 2020-12-08 歌尔股份有限公司 应用装置
CN113727252B (zh) * 2020-05-25 2025-05-06 歌尔股份有限公司 应用装置
CN111757221B (zh) * 2020-08-31 2021-01-22 歌尔股份有限公司 扬声器

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007208877A (ja) * 2006-02-06 2007-08-16 Matsushita Electric Ind Co Ltd スピーカ
US20110135139A1 (en) * 2009-12-07 2011-06-09 Alpine Electronics, Inc. Speaker device
CN207070321U (zh) * 2017-06-30 2018-03-02 歌尔科技有限公司 扬声器单体及电子设备
CN107968979A (zh) * 2017-12-27 2018-04-27 Tcl通力电子（惠州）有限公司 发声器件
CN111131982A (zh) * 2020-03-27 2020-05-08 共达电声股份有限公司 一种定心支片及具有该定心支片的扬声器
CN211930861U (zh) * 2020-05-25 2020-11-13 歌尔股份有限公司 弹性部件及应用装置
CN212086477U (zh) * 2020-05-25 2020-12-04 歌尔股份有限公司 应用装置
CN112969132A (zh) * 2021-01-29 2021-06-15 歌尔股份有限公司 弹性支片、电子装置及终端

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024199171A1 (zh) * 2023-03-31 2024-10-03 歌尔股份有限公司 发声装置

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