CN109743662B - Centering support piece and sound production device - Google Patents

Centering support piece and sound production device Download PDF

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Publication number
CN109743662B
CN109743662B CN201811652692.2A CN201811652692A CN109743662B CN 109743662 B CN109743662 B CN 109743662B CN 201811652692 A CN201811652692 A CN 201811652692A CN 109743662 B CN109743662 B CN 109743662B
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fixing
voice coil
centering
fixed
conducting layer
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CN109743662A (en
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郭翔
刘迎新
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Goertek Inc
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Goertek Inc
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Abstract

The invention discloses a centering branch piece and a sound generating device, wherein the centering branch piece comprises an inner fixing part, an outer fixing part and a connecting arm, the outer fixing part is arranged outside the inner fixing part at intervals, and the connecting arm is respectively connected with the inner fixing part and the outer fixing part; the centering piece is including range upon range of insulating substrate layer and the conducting layer that sets up, outer fixed part includes the fixed limit that extends along its circumference, fixed limit be equipped with the fracture on the conducting layer, the conducting layer has the constitution just set up both sides wall, two the equal relative first direction slope of lateral wall, first direction with the extending direction on fixed limit is perpendicular. The technical scheme of the invention can solve the problem that the centering support is easy to deform.

Description

Centering support piece and sound production device
Technical Field
The invention relates to the technical field of acoustic energy conversion, in particular to a centering disk and a sound generating device.
Background
Among the prior art, sound generating mechanism includes auxiliary system, magnetic circuit and vibration system, and magnetic circuit is provided with the magnetic gap, and vibration system includes the vibrating diaphragm, combines centering branch piece and voice coil loudspeaker voice coil together with the vibrating diaphragm, and the voice coil loudspeaker voice coil sets up in the magnetic gap, sets up and after receiving the alternating current signal of external change in the voice coil loudspeaker voice coil in the magnetic gap, does the motion of reciprocal cutting magnetic line of force under the drive of magnetic field force, drives vibrating diaphragm vibration sound production.
The centering support is one of basic components of the sounding device, and mainly has the functions of ensuring the correct position of the voice coil in the magnetic gap, keeping the voice coil under stress, enabling the vibration system to reciprocate only along the axial direction and providing elastic force for the vibration system to reciprocate, and determining the resonant frequency of the sounding device together with the vibration membrane and the voice coil of the vibration system.
The centering disk with the traditional structure comprises an outer fixing part and an inner fixing part, the outer fixing part is fixedly connected with an auxiliary system, the inner fixing part is connected with a voice coil, the voice coil is electrically connected with an external circuit through a conducting layer of the centering disk, and the outer fixing part is connected with the inner fixing part through a connecting arm. The conducting layer of centering piece is equipped with the breach of two disconnections, so that the conducting layer separates for two independent parts, after centering piece and shell are fixed, still need to carry out spot welding with the pad on the centering piece and the shell and be connected, but because the material of centering piece generally all is softer material, in the process of carrying out spot welding, the centering piece receives welding position's effort, lead to its easy deformation, and the linearity of centering piece self suffers destruction, thereby reduce sound generating mechanism's acoustic performance and reliability.
Disclosure of Invention
The invention mainly aims to provide a centering branch piece and aims to solve the problem that the centering branch piece is easy to deform.
In order to achieve the above object, the present invention provides a centering disk, which includes an inner fixing portion, an outer fixing portion and a connecting arm, wherein the outer fixing portion is spaced around the inner fixing portion, and the connecting arm is respectively connected to the inner fixing portion and the outer fixing portion; the centering piece is including range upon range of insulating substrate layer and the conducting layer that sets up, outer fixed part includes the fixed limit that extends along its circumference, fixed limit be equipped with the fracture on the conducting layer, the conducting layer has the constitution just set up both sides wall, two the equal relative first direction slope of lateral wall, first direction with the extending direction on fixed limit is perpendicular.
Optionally, the two side walls are arranged in parallel.
Optionally, the side wall is a straight wall inclined with respect to the first direction.
Optionally, the break is located near a middle of the fixation edge.
Optionally, outer fixed part includes a plurality of fixed limit, it is a plurality of fixed limit is including two first fixed limits of relative setting and two second fixed limits of relative setting, first fixed limit with the fixed limit interconnect of second, two first fixed limit respectively be equipped with one on the conducting layer the fracture.
Optionally, the outer fixing portion is provided with two first bonding pads, the shell of the sound generating device is correspondingly provided with two second bonding pads, the first bonding pads and the second bonding pads correspond to each other in one-to-one position and are electrically connected, and the first bonding pads are spaced by the two fractures.
Optionally, the two first pads are respectively disposed at two ends of the same first fixed edge.
Optionally, the inner peripheral wall of the inner fixing portion is provided with two third pads, and the two third pads are electrically connected with the voice coil of the sound generating device respectively.
Optionally, the centering branch piece includes a plurality of the connecting arms, and the plurality of connecting arms are arranged at intervals along the circumferential direction of the outer fixing portion.
The invention also provides a sound generating device, which comprises a shell and a vibration system, wherein the vibration system is accommodated and fixed in the shell, the vibration system comprises a vibration diaphragm, a centering disk and a voice coil which are combined together, the centering disk comprises an inner fixing part, an outer fixing part and a connecting arm, the outer fixing part is arranged outside the inner fixing part in an interval surrounding manner, and the connecting arm is respectively connected with the inner fixing part and the outer fixing part; the centering support piece comprises an insulating base material layer and a conducting layer which are arranged in a laminated mode, the outer fixing portion comprises a fixing edge extending along the circumferential direction of the outer fixing portion, a fracture is arranged on the conducting layer of the fixing edge, the conducting layer is provided with two opposite side walls forming the fracture, the two side walls are inclined relative to a first direction, and the first direction is perpendicular to the extending direction of the fixing edge;
the outer fixing portion of the centering support piece is connected with the shell, the inner fixing portion of the centering support piece is connected with the voice coil, the conducting layer on the outer fixing portion is electrically connected with an external circuit, the conducting layer on the inner fixing portion is electrically connected with the voice coil, and the voice coil is electrically connected with the external circuit through the conducting layer.
In the invention, because the two side walls of the fracture formed by the conducting layers on the outer fixing part are arranged in an inclined manner, when the centering branch piece is acted by external force, for example, when the centering branch piece is acted by welding force when spot welding is carried out on the centering branch piece and the shell, the acting force transmitted to the position of the side wall can be decomposed into component force along the first direction (or the direction opposite to the first direction) and component force along the extending direction of the fixing edge, so that the acting force is prevented from being concentrated along the edge of the side wall and acting on the edge of the side wall, and the acting force on the side wall can be reduced. Meanwhile, when the force is transmitted to the edge of the side wall, since the side wall is inclined and the distances from the spot welding positions are different at various positions of the inclined side wall, the acting force at various positions of the side wall is different, and the conductive layer of the side wall at the position far away from the spot welding position has a dragging effect on the conductive layer at the position close to the spot welding position, thereby reducing the deformation of the conductive layer at the position close to the spot welding position. Therefore, the two side walls forming the fracture of the conducting layer are obliquely arranged, the problem that the centering disk is easy to deform can be solved, the linearity of the centering disk is prevented from being damaged, and therefore the acoustic performance and the reliability of the sound production device can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is an exploded view of a sound generator according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of the centering disk of FIG. 1;
FIG. 3 is a schematic view of the configuration of the centralizer of FIG. 2 from an angle;
fig. 4 is a schematic structural view of the centering branch piece in fig. 2 from another angle.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a sound generating device which can be a loudspeaker single body, a loudspeaker module or terminal equipment, and the terminal equipment can be an earphone or a mobile phone and the like.
In the embodiment of the present invention, as shown in fig. 1, the sound generating apparatus includes a vibration system and a magnetic circuit system, the vibration system includes a diaphragm 30, a voice coil 50 and a centering pad 10, which are combined together, the diaphragm 30 includes a central portion, a corrugated portion disposed around the central portion, and an edge portion disposed around the corrugated portion, and the diaphragm 30 may further include a dome 40 combined with the central portion. The magnetic circuit system comprises a magnetic yoke 61, an inner magnetic circuit part and an outer magnetic circuit part are arranged on the magnetic yoke 61, a magnetic gap for accommodating the voice coil 50 is formed between the inner magnetic circuit part and the outer magnetic circuit part, the voice coil 50 is located on one side, facing the magnetic circuit system, of the vibrating diaphragm 30, the voice coil 50 is electrically connected with the centering branch piece 10, and in addition, the centering branch piece 10 is used for supporting the voice coil 50 and ensuring that the voice coil 50 is vertical and does not topple. In one case, the inner magnetic path portion includes a center magnet 62 disposed at a central position of the yoke 61 and a center magnetic conductive plate 63 disposed on the center magnet 62, and the outer magnetic path portion includes a side magnet 64 disposed at an edge position of the yoke 61. The sound generating device may further comprise an auxiliary system comprising a housing 20, the housing 20 being adapted to house the stationary vibration system and the magnetic circuit system. In addition, the auxiliary system may further include a front cover (not shown) coupled to the upper side of the housing 20, and the front cover and the housing 20 enclose a protection frame. Of course, in some cases, the sound generator may not include a front cover.
Referring to fig. 2 and fig. 3, in detail, the centering branch piece 10 includes an inner fixing portion 12, an outer fixing portion 11 and a connecting arm 13, the outer fixing portion 11 is spaced around the inner fixing portion 12, and the connecting arm 13 is connected to the inner fixing portion 12 and the outer fixing portion 11 respectively; the centering branch piece 10 comprises an insulating base material layer and a conducting layer which are stacked, the outer fixing portion 11 comprises a fixing edge extending along the circumferential direction of the outer fixing portion, a fracture 113 is arranged on the conducting layer of the fixing edge, the conducting layer is provided with two opposite side walls 115 forming the fracture 113, the two side walls 115 are inclined relative to a first direction, and the first direction is perpendicular to the extending direction of the fixing edge.
In the present embodiment, the centering branch piece 10 is substantially square, and correspondingly, the outer fixing portion 11 and the inner fixing portion 12 are also square-ring-shaped. The damper 10 may have a circular shape, and the outer fixing portion 11 and the inner fixing portion 12 may have an annular shape. Optionally, the insulating substrate layer may be a polyimide film, the conductive layer may be a copper foil, and the copper foil is adhered to the polyimide film coated with an adhesive by a rolling process, or the copper foil is directly formed on the polyimide film without using an adhesive. The insulating substrate layer of the centering sheet 10 is not limited to the polyimide film described above, and may be made of a polymer material film other than polyimide, and the conductive layer is not limited to the copper foil described above, and may be another metal layer, a graphene conductive layer, or the like, and specific materials are not limited.
In this embodiment, two fractures 113 are disposed on the conductive layer of the outer fixing portion 11 to separate the conductive layer on the outer fixing portion 11 into two independent portions, and meanwhile, two notches 121 are also disposed on the conductive layer of the inner fixing portion 12 to separate the conductive layer on the inner fixing portion 12 into two independent portions, and the two independent portions of the conductive layer on the inner fixing portion 12 and the two independent portions of the conductive layer on the outer fixing portion 11 are electrically connected in a one-to-one correspondence manner through different connecting arms 13, and one portion of the conductive layer on the outer fixing portion 11 is electrically connected to a positive electrode, and the other portion of the conductive layer on the outer fixing portion 11 is electrically connected to a negative electrode, which is equivalent to separate the conductive layer on the centering support 10 into a conductive layer.
In the present embodiment, the two side walls 115 forming the discontinuity 113 are inclined with respect to the first direction, which corresponds to the two side walls 115 forming the discontinuity 113 being in a non-perpendicular state to the fixing edge provided with the discontinuity 113.
In the present invention, since the two side walls 115 of the fracture 113 formed by the conductive layer on the outer fixing portion 11 are disposed in an inclined manner, when the centering leg 10 is subjected to an external force, for example, when the centering leg 10 is subjected to a welding force during spot welding with the housing 20, the force transmitted to the position of the side wall 115 is decomposed into a component force along the first direction (or a component force along the direction opposite to the first direction) and a component force along the extending direction of the fixing edge, so as to avoid the concentrated action of the force along the edge of the side wall 115 completely, and thus the force applied to the side wall 115 can be reduced. Meanwhile, when the force is transmitted to the edge of the sidewall 115, since the sidewall 115 is inclined and the distance from the spot welding position is different at each position of the inclined sidewall 115, the force is different at each position of the sidewall 115, and the conductive layer of the sidewall 115 at a position far from the spot welding position has a dragging effect, i.e., a blocking effect, on the conductive layer at a position near the spot welding position, thereby reducing the deformation of the conductive layer near the spot welding position. Therefore, the two side walls 115 of the conducting layer, which form the fracture 113, are obliquely arranged, so that the problem that the centering disk 10 is easy to deform can be solved, the linearity of the centering disk 10 is prevented from being damaged, and the acoustic performance and the reliability of the sound production device can be improved.
In this embodiment, the centering branch piece 10 is substantially square and includes a plurality of fixing edges (when the centering branch piece 10 is square, the number of the fixing edges is four), the plurality of fixing edges includes two first fixing edges 111 disposed opposite to each other and two second fixing edges 112 disposed opposite to each other, the first fixing edges 111 and the second fixing edges 112 are connected to each other, and a break 113 is respectively disposed on the conductive layers of the two first fixing edges 111, so that the conductive layer on the outer fixing portion 11 is divided into two independent portions. Through setting up a fracture 113 respectively on two fixed edges that set up relatively for two fractures 113 separate far, avoid two fracture 113 to influence each other and lead to centering branch piece 10 to warp between. In this embodiment, the first direction refers to an extending direction along the second fixing edge 112. Furthermore, the two cut-outs 113 may also be disposed on two adjacent fixing edges, that is, one cut-out 113 is disposed on each of a first fixing edge 111 and a second fixing edge 112.
In one embodiment, the two side walls 115 are disposed in parallel, and the width of the fracture 113 formed in this way is uniform, which is more favorable for the force balance of the centering branch 10 at the two side walls 115. Alternatively, the sidewall 115 is a straight wall inclined with respect to the first direction, which facilitates the forming process. In addition, the side walls 115 may be arc walls, and the two side walls 115 may extend in a direction away from each other, so that the fracture 113 is gradually enlarged.
Referring to fig. 4, in an embodiment, two first pads 114 are disposed on the outer fixing portion 11, two second pads 21 are correspondingly disposed on the housing 20 of the sound generating apparatus, the two first pads 114 and the two second pads 21 are corresponding to each other in one-to-one position and electrically connected, the two first pads 114 are spaced by two gaps 113, and the first pads 114 are electrically connected to the conductive layer, so that the centering branch piece 10 is connected to an external circuit. Alternatively, the two first pads 114 are provided at two corner portions of the outer fixing portion 11. In the present embodiment, the two first pads 114 are respectively disposed at two ends of the same fixed edge, for example, the two first pads 114 are respectively disposed at two ends of the same fixed edge 111. Optionally, the fracture 113 is disposed near the middle of the first fixing edge 111, so that the conductive layers on the outer fixing portion 11 are symmetrically disposed around the connecting line between the two fractures 113, and the stresses on the two conductive layers on the outer fixing portion 11 are the same, thereby preventing the deformation of the centering branch piece 10 caused by the uneven stresses on the two portions.
In one embodiment, two third pads 122 are disposed on the inner peripheral wall of the inner fixing portion 12, and the two third pads 122 are electrically connected to the voice coil 50 of the sound generating device respectively. One of the third pads 122 is a positive pad, and the other third pad 122 is a negative pad. Alternatively, the two third pads 122 are disposed at two opposite corners of the inner fixing portion 12, so as to avoid the two wires on the voice coil 50 from being interlaced. Of course, the two third pads 122 may also be disposed on the same side of the inner fixing portion 12.
To achieve better connection between the inner fixing portion 12 and the outer fixing portion 11, the centering chip 10 includes a plurality of connecting arms 13, and the plurality of connecting arms 13 are arranged at intervals along the circumferential direction of the outer fixing portion 11. For example, in some embodiments, the stiffener 10 includes four connecting arms 13, and one connecting arm 13 is provided on each side of the internal fixation portion 12. Of course, two or more connecting arms 13 may be provided on each side of the inner fixing portion 12. Alternatively, the connecting arm 13 extends along the circumference of the outer fixing portion 11 and is shaped like a long strip, one end of the connecting arm 13 is connected to the outer fixing portion 11, and the other end is connected to the inner fixing portion 12, so that the surface area of the centering support 10 can be increased, and the centering support can be in better contact with the diaphragm 30.
In the above, the outer fixing portion 11 of the damper 10 is connected to the case 20, the inner fixing portion 12 of the damper 10 is connected to the voice coil 50, the conductive layer on the outer fixing portion 11 is electrically connected to the external circuit through the first pad 114 and the second pad 21, and the conductive layer on the inner fixing portion 12 is electrically connected to the voice coil 50 through the third pad 122, so that the voice coil 50 is electrically connected to the external circuit through the conductive layer on the damper 10.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. A centering support piece is characterized by comprising an inner fixing part, an outer fixing part and connecting arms, wherein the outer fixing part is arranged outside the inner fixing part at intervals in a surrounding mode, and the connecting arms are respectively connected with the inner fixing part and the outer fixing part; the centering piece is including range upon range of insulating substrate layer and the conducting layer that sets up, outer fixed part includes the fixed limit that extends along its circumference, fixed limit be equipped with the fracture on the conducting layer, the conducting layer has the constitution the relative both sides wall that sets up of fracture, two the equal relative first direction slope of lateral wall, first direction with the extending direction on fixed limit is perpendicular.
2. The centromere of claim 1, wherein the two side walls are disposed in parallel.
3. The centromere of claim 1, wherein the sidewall is a straight wall that is inclined relative to the first direction.
4. The centromere of claim 1, wherein the discontinuity is located near a middle of the fixation edge.
5. The apparatus as claimed in any one of claims 1 to 4, wherein said outer fixing portion comprises a plurality of said fixing edges, said plurality of said fixing edges comprises two first fixing edges disposed opposite to each other and two second fixing edges disposed opposite to each other, said first fixing edges and said second fixing edges are connected to each other, and said conductive layers of said two first fixing edges are respectively provided with said fracture.
6. The rdl of claim 5, wherein two first bonding pads are disposed on the outer fixing portion, two second bonding pads are correspondingly disposed on the casing of the sound generating device, the two first bonding pads and the two second bonding pads are corresponding to each other in one position and electrically connected to each other, and the two first bonding pads are separated by the two breaks.
7. The rdl of claim 6, wherein two of the first pads are disposed at two ends of the same first fixed edge.
8. The damper as claimed in claim 1, wherein two third pads are disposed on the inner peripheral wall of the inner fixing portion, and each of the two third pads is electrically connected to a voice coil of a sound generating device.
9. The centralizer of claim 1 wherein the centralizer comprises a plurality of the connecting arms spaced apart along a circumference of the outer fixation portion.
10. The utility model provides a sound generating mechanism, its characterized in that, sound generating mechanism includes shell and vibration system, vibration system accepts to be fixed in the shell, vibration system includes vibrating diaphragm, centering piece and the voice coil loudspeaker voice coil that the combination is in the same place, the outer fixed part of centering piece with the shell is connected, the interior fixed part of centering piece with the voice coil loudspeaker voice coil is connected, is located conducting layer on the outer fixed part is connected with external circuit electricity, is located conducting layer on the interior fixed part with the voice coil loudspeaker voice coil electricity is connected, the voice coil loudspeaker voice coil passes through conducting layer and external circuit electricity are connected, the centering piece be any one of claim 1-9 centering piece.
CN201811652692.2A 2018-12-29 2018-12-29 Centering support piece and sound production device Active CN109743662B (en)

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110933576B (en) * 2020-02-20 2020-06-19 共达电声股份有限公司 Centering support piece and loudspeaker with same
CN111294714B (en) * 2020-05-11 2020-08-28 共达电声股份有限公司 Centering support piece and loudspeaker with same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202841505U (en) * 2012-08-14 2013-03-27 歌尔声学股份有限公司 Electroacoustic transducer
CN104822113A (en) * 2015-04-22 2015-08-05 歌尔声学股份有限公司 Speaker device
CN204741562U (en) * 2015-06-09 2015-11-04 歌尔声学股份有限公司 Speaker unit
CN206963062U (en) * 2017-07-19 2018-02-02 歌尔科技有限公司 Centring disk and the loudspeaker with the centring disk

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2637692A1 (en) * 2005-12-12 2007-06-21 Revolution Acoustics, Ltd Inertial voice type coil actuator
CN205622865U (en) * 2016-03-31 2016-10-05 歌尔股份有限公司 Speaker monomer and speaker module
CN206963061U (en) * 2017-07-19 2018-02-02 歌尔科技有限公司 Centring disk and the loudspeaker with the centring disk

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202841505U (en) * 2012-08-14 2013-03-27 歌尔声学股份有限公司 Electroacoustic transducer
CN104822113A (en) * 2015-04-22 2015-08-05 歌尔声学股份有限公司 Speaker device
CN204741562U (en) * 2015-06-09 2015-11-04 歌尔声学股份有限公司 Speaker unit
CN206963062U (en) * 2017-07-19 2018-02-02 歌尔科技有限公司 Centring disk and the loudspeaker with the centring disk

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